JP3481909B2 - Valve unit and container - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a valve unit and a container used for a pump type container such as a hair wash used at home.

[0002]

2. Description of the Related Art Conventionally, for example, a pump type container has been used to store a hair wash, a detergent and the like used at home. This container comprises a container body and a valve unit that is removably inserted in the container body. Normally, in the valve unit, when the piston portion is pressed, the piston portion returns to suck up the solution from the container body, and when the piston portion is pushed next, the solution comes out from the discharge end of the piston portion. An example of this will be described with reference to FIGS. 20 and 21. The valve unit 1 is composed of a pipe-shaped valve body 2 which is detachably inserted into a container body (not shown), and an L-shaped pipe-shaped piston portion 3. .

Inside the valve body 2, the piston portion 3
Is slidably inserted and the suction port 4 of the valve body 2
Between the piston 5 and the piston 5 at the end of the piston 3
A solution storage unit 6 is formed which communicates with the atmosphere via the. Then, a valve B which allows only the inflow of the solution from the container body side to the solution storage section 6 side is provided on the suction port 4 side of the solution storage section 6, and the discharge end of the piston section 3 and the solution storage section are provided. A check valve G that allows only the outflow of the solution from the solution storage section 6 to the piston section 3 is provided between the discharge side of the section 6 and the coil spring 7 between the piston 5 and the valve B. It is installed. The piston 3 is urged by the coil spring 7 with respect to the valve body 2 in a direction of increasing the volume of the solution containing portion 6. Note that FIG. 20 shows a state in which the piston portion is pushed in, and FIG. 21 shows a state in which the piston portion 3 has returned, as indicated by arrows.

[0004]

However, in the above-mentioned conventional valve unit, since the coil spring 7 must be inserted between the piston 5 and the suction port 4, assembly work is troublesome. There's a problem. Further, from the viewpoint of protecting the natural environment, there is a demand for recycling of parts, and normally, the coil spring 7 made of metal must be disassembled and separately disposed, which is an obstacle to reuse. Further, since the coil spring 7 is used, there is a problem that the number of assembling steps and the number of parts are increased, leading to cost increase.

Further, in the container provided with the above valve unit, the liquid in the container body does not normally come out unless the piston portion 3 is pushed, but when the container falls down, the valve B and the reverse Since the stop valve G opens, the liquid is in the piston part 3
There is a problem that it flows out from. Therefore, it is an object of the present invention to provide a valve unit and a container that can be easily assembled, can be manufactured at low cost, can be easily reused, and can prevent the outflow of a solution even when it is collapsed.

[0006]

SUMMARY OF THE INVENTION The present invention is a valve unit for being inserted into a container body and sucking out a solution in the container body to the outside of the container body, and a suction pipe to be inserted into the container body and the suction pipe. A bellows that is communicatively connected to the upper part of the pipe and is capable of returning in the extending direction, a suction pipe that is connected to the upper part of the bellows and that communicates with the internal space, and a suction slide that is slidably inserted into the suction pipe. A pipe is provided between the suction sliding pipe and the suction pipe, and when the container is used, the suction pipe and the suction sliding pipe are mechanically connected to each other so that the bellows can be compressed and packed. At times, the suction pipe and the suction sliding pipe are slidable, and the suction sliding pipe is inserted into the suction pipe. Characterized in that a coupling means enabling. According to the above configuration, by providing the connecting means, the suction sliding pipe and the suction pipe can move integrally to compress the bellows. Also,
By disengaging the connection means to allow sliding between the suction slide pipe and the suction pipe, the suction slide pipe is accommodated in the suction pipe to reduce the protrusion to the upper portion. It does not compress the bellows when it is stored.

According to the present invention, the connecting means is detachably attached to the outer circumference of the suction slide pipe and has an outer diameter larger than the inner diameter of the suction pipe, so that the inside of the suction pipe of the suction slide pipe is it characterized by blocking insertion into. According to the above Symbol configuration, are operated integrally with suction sliding pipe and suction pipe by attaching the connecting means can compress the bellows, by removing the coupling means, be them can slide You can

A piston portion slidable with respect to the suction pipe is provided at the upper end of the suction pipe, and the connecting means is detachably inserted into the piston portion so that the suction pipe can slide. It is characterized by blocking. According to the above configuration, the piston and the suction pipe can be integrally operated by attaching the connecting means to compress the bellows, and by removing the connecting means, these can be slidable.

Further, the present invention provides a container comprising a valve unit according to any one of claims 1 to 3 and a container body to which the valve unit is detachably attached. To do.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION First, the basic structure of an embodiment of a container to which the present invention is applied will be described. In Figure 1, Y
Indicates a container body, in which a liquid hair wash is contained. The container body Y is molded of synthetic resin and has a male screw portion 11 formed in the upper opening 10 on the cylinder. A cap 13 made of synthetic resin having a female screw portion 12 screwed onto the male screw portion 11 of the upper opening portion 10 is detachably attached, and the valve unit VU is attached by the cap 13.

The valve unit VU is made of a synthetic resin case 14 which is attached to the upper opening 10 of the container body Y toward the inside of the container body Y, a synthetic resin guide member 15 mounted in the case 14, and a container. A bellows unit 16 made of synthetic resin inserted into the main body Y and a piston portion P made of synthetic resin mounted on the bellows unit 16 are provided. The case 14 is a cylindrical member having a flange portion 17 that is locked around the upper opening 10 of the container body Y, and has an opening 18 at the bottom. A female screw portion 19 is formed on the inner peripheral surface of the upper portion of the case 14, and the guide member 15 is screwed therein.

The guide member 15 has a male screw portion 20 screwed into the female screw portion 19 of the case 14, and a holding portion 22 into which the suction pipe 21 of the piston portion P is slidably inserted inside the male screw portion 20. It has The male screw part 20 and the holding part 22 are integrated in the upper part and are urged in directions away from each other. The upper portions of the holding portion 22 and the male screw portion 20 extend laterally and are bent downward to extend a flange portion 23 on the upper surface of the cap 13, and the flange portion 23 moves the cap 13 in the removal direction. It is designed to prevent A lock screw portion 24 is formed on the outer periphery of the guide member 15 and is screwed into a cap-shaped pressing portion female screw portion 26 provided on the piston portion P to lock the piston portion P at the storage position. It has become.

As shown in FIG. 2, the bellows unit 16 is inserted into the container body Y and sucks out the solution inside the container body Y to the outside of the container body Y. The bellows unit 16 is provided with a suction pipe 27 which is inserted into the container body and whose lower suction end 32 is obliquely cut. An upper portion of the suction pipe 27 is a bellows-like bellows which can be restored in the extending direction. 28 is connected in communication with the suction pipe 27. The bellows 28 is a synthetic resin member that can return in the extending direction, that is, in the direction in which the internal volume increases, has a predetermined spring constant, and the inside serves as a solution storage portion.

The piston P is attached to the upper part of the bellows 28.
The connection part 29 to which the suction pipe 21 of is connected is integrally molded, and only the inflow of the solution from the container body Y into the bellows 28 is allowed upstream of the bellows 28, that is, between the suction pipe 27 and the bellows 28. A valve B is provided, and on the other hand, a check valve G is provided downstream of the bellows 28, that is, between the bellows 28 and the connecting portion 29, which allows only the solution to flow out from the bellows 28 to the suction pipe 21 side of the piston portion P. It is provided.
A slit plate 29 described later is provided downstream of the check valve G.

The valve B is a suction pipe 27 and a bellows 28.
And a valve chamber 30 integrally formed with the check valve G, and the check valve G includes a valve chamber 31 integrally formed with the connection part 29 of the suction pipe 21 and the bellows 28. Suction pipe
A valve element 33 that can be inserted is inserted from the suction end 32 of 27 or the end of the connecting portion 29 of the suction pipe 21. Here, the valve element 33 is a spherical member made of synthetic resin, but it may be a bowl shape, a hemispherical shape or the like as long as it can close each opening K, and its shape is not limited. .

Here, as shown in FIG. 3, a ridge 34 is formed between the suction pipe 27 of the valve B and the opening K, and a valve element 33 inserted from the suction end 32 of the suction pipe 27 is inserted. It cannot be pushed in unless it is inserted with a certain amount of force, and the valve element 33 is prevented from coming off. As shown in FIG. 2, these valve B and check valve G are connected to
A protrusion 35 for preventing the valve body 33 from being lifted is formed in each of 30 and 31. This projection 35 is also molded simultaneously when forming the valve B and the check valve G. If the valve body 33 can be prevented from rising, the valve chamber can be replaced with the protrusion 35.
It is also possible to make the cross-sectional shape of 30 and 31 themselves such that the valve body 33 does not float, for example, an irregular cross section such as an ellipse, a quadrangle, or a triangle.

At the boundary between the valve B and the lower portion of the bellows 28, there is formed a constricted portion 36 for engaging with the opening 18 (shown in FIG. 1) of the case 14, and the bellows 28 is attached to the case 14. , That is, the bellows unit 16 is locked and the bellows 28
When it is compressed, it can be supported from below. On the other hand, a step portion 37 is formed at the boundary between the check valve G and the connecting portion 29 of the suction pipe 21, and the step portion 37 is locked to the lower end of the holding portion 22 of the guide member 15 described above. It functions as a stopper that prevents the movement of the upper portion of the bellows 28 that shifts in the extending direction. Suction pipe 27, valve B, bellows 28, check valve configured as described above
G, the connection part 29, etc. are integrally molded by blow molding,
The valve bodies 33 are pushed into the valve chambers 30 and 31 of the valve B and the check valve G to form the bellows unit 16.

As shown in FIG. 4, the suction pipe 21
At the end of the connecting portion 29, a slit plate (plate) 39 is interposed between the end of the connecting portion 29 and the step D formed in the insertion portion 38 of the suction pipe 21. When the slit plate 39 is attached to the connecting portion 29, it may be inserted as it is, but it can be attached by various methods such as adhesion, welding, and heat staking.

The slit plate 39 is a thin plate-like member having an elastic force sandwiched between the connecting portion 29 and the suction pipe 21, and the thin-walled portion 40 near the center is formed in a V shape as shown in FIG. Slit (diaphragm) S is formed.
The thin portion 40 is gradually thinned from the periphery by the rounded portion R so that stress concentration does not occur even when subjected to repeated loading due to the nature of the component. The two portions S1 and S2 divided by the slit S can be elastically deformed and bent by the pressure of the solution as shown by the chain line, and the pressure of the solution is the above two portions S1 and S2. When it exceeds the elastic force of, the solution is discharged at once. Further, the elastic force of these two portions S1s and S2 does not bend when the container body B falls down and the valve B and the check valve G are opened, and the solution is prevented from flowing out from the slit S, so that the thin portion 40 is prevented from flowing out. The plate thickness and the length of the slit S are set.

A suction pipe of an L-shaped piston portion P slidable with respect to the guide member 15 is provided at a connection portion 29 at an upper portion of the bellows unit 16 configured as shown in FIG.
The insertion portion 38 of 21 is press-fitted from the outside, the piston P is attached to the bellows unit 16, and the valve unit VU is assembled. Here, the cap-shaped pressing portion 25 described above is formed in the bent portion of the suction pipe 21, and the pressing portion
The horizontally extending terminal 42 of the suction pipe 21 that bends at 25 bends slightly obliquely downward. It opens at the discharge end 43. By pressing the pressing portion 25 of the piston portion P composed of the pressing portion 25 and the suction pipe 21, the lower portion of the case 1
The bellows 28 regulated by 4 is pressed and contracted to suck out the solution in the container body Y.

The operation of the above embodiment will be described. As shown in FIG. 1, when there is no solution in the bellows 28, when the pressing portion 25 of the piston part P is pushed downward, the bellows 28 is compressed as shown in FIG. , The valve body 33 of the valve B closes the opening portion K, but the valve body 33 of the check valve G opens the opening portion K to expel the air inside, so that the air is released from the piston portion P. Exhale from the suction pipe 21 of. When the pressing portion 25 of the piston portion P is released, the bellows 28 tries to return in the extending direction, so that the pressure inside the bellows 28 becomes negative. Then, the valve body 33 of the check valve G is shown in FIG.
The opening K is opened as indicated by the chain line, the solution is sucked from the container body Y into the bellows 28, and the bellows 28 is filled (the state shown in FIG. 1).

Next, as shown in FIG. 7, when the pushing portion 25 of the piston portion P is pushed again, the solution in the bellows 28 is released, and the solution in the bellows 28 is released from the valve element 33 of the valve B.
Since the opening K is blocked from moving toward the container body Y, the solution is pushed up by the compressed bellows 28, pushing up the valve body 33 of the check valve G and opening the opening K. Then, the solution in the extruded piston part P is discharged from the valve B.
As a result, it does not flow back into the container body Y, but is pushed out from the discharge end 43 through the suction pipe 21 of the piston portion P.

Therefore, due to the expansion and contraction of the bellows 28, which itself functions as a member for containing the solution, the container body Y
Since the solution inside can be sucked out, unlike the case of using the coil spring, a member for containing the solution is not required, and the number of parts and the number of assembling steps can be reduced. Further, since each member can be molded with synthetic resin, it is easier to disassemble and reuse as compared with the case of using a steel coil spring, a valve, and a check valve.

Here, as shown in FIG. 12, the solution is a check valve.
When G is opened and is going to come out from the suction pipe 21, the two portions S1 and S2 divided by the slit S in the portion of the slit plate 39 receive pressure in the direction of expanding the opening area of the slit S. Then, when the pressure of the solution exceeds the elasticity of each of the portions S1 and S2, the two portions S1 and S2 are elastically deformed as shown in the figure and the solution can be discharged at a stretch. , The solution can be sucked out quickly at once. Further, even if the valve B and the check valve G are opened when the container to which the valve unit VU is attached falls, the slit plate 39 has an advantage that the solution can be prevented from flowing out. Note that when the container has not fallen down, even if the solution in the bellows 28 is about to be pushed out due to the rise in the pressure in the bellows 28, this can be prevented by the slit plate 39,
It is also possible to prevent the solution from flowing out from the discharge end 43 when the container is not falling.

Therefore, there is an advantage that the solution does not flow out at the discharge end 43 of the end portion 42 of the suction pipe 21 and is easy to use. Further, in consideration of the case where the container falls, the elastic force of the two parts S1 and S2 divided by the slit plate S is applied to the thickness of the thin portion 40 of the slit plate 39 and the slit.
Since it is possible to adjust the length of S, there is a high degree of freedom in design. Here, the slit plate 39 is bellows 2
8. When integrally molded with the check valve G, the number of parts and the number of assembling steps can be reduced, so that the cost can be reduced.

Since the bellows 28, the check valve G, the valve B and the suction pipe 27 can be integrally formed by blow molding, a large cost reduction can be achieved and the bellows 28 is inserted inside. Since the valve element 33 is made of synthetic resin, it can be easily reused with the container body Y and other parts.
Can cope with environmental problems. Here, FIG. 8 shows a storage state of the container, and in this storage state, as described above, the female screw portion 26 of the pressing portion 25 of the piston portion P is screwed into the locking screw portion 24 of the guide member 15, At this time, the pushing stroke of the piston portion P becomes maximum. Therefore, it is necessary to consider this point when setting the compression length of the bellows 28. Further, during storage as described above, since the piston portion P is not pushed any further, there is no outflow of the solution due to the pressing of the piston portion P, but when the container falls down in such a storage state, As described above, it is possible to reliably prevent the solution from flowing out through the slit plate 39, which is advantageous in product management during storage.

By the way, in the container of the present invention, since the terminal 42, which is the operation part shown in FIG. 1 and is horizontally traveling, of the piston part P shown in FIG. It may be pushed down and packed in advance. If the piston portion P is pushed down for a long time in this way, the bellows 28 may not sufficiently return, and as a result, the solution may not be sufficiently sucked. In order to eliminate such inconvenience, the container shown in FIG. 9 has been developed. This container will be described. In FIGS. 9 and 10, Y represents a container body, in which a liquid hair wash is stored.

The container body Y is molded of synthetic resin and has a male screw portion 51 formed in the upper opening 50 on the cylinder. A cap 53 made of synthetic resin having a female screw portion 52 screwed onto the male screw portion 51 of the upper opening 50 is detachably attached, and the valve unit VU is attached by the cap 53.

The valve unit VU is made of a synthetic resin case 54 which is attached to the upper opening 50 of the container body Y toward the inside of the container body Y, a synthetic resin guide member 55 which is attached to the case 54, and a container. A bellows unit 56 made of synthetic resin inserted into the main body Y and a piston portion P made of synthetic resin mounted on the bellows unit 56 are provided. The case 54 is a tubular member having a flange portion 57 that is locked around the upper opening 50 of the container body Y, and has an opening 58 at the bottom. A female screw portion 59 is formed on the inner peripheral surface of the upper portion of the case 54, and the guide member 55 is screwed therein.

The guide member 55 has a male screw portion 60 screwed into the female screw portion 59 of the case 54, and a holding portion 62 into which the suction pipe 61 of the piston portion P is slidably inserted, inside the male screw portion 60. Is equipped with. The male screw part 60 and the holding part 62 are integrated in the upper part and are urged in directions away from each other.

The bellows unit 56 is inserted into the container body Y and sucks out the solution inside the container body Y to the outside of the container body Y. The bellows unit 56 is provided with a suction pipe 63 which is inserted into the container body Y and whose lower suction end is obliquely cut. An upper portion of the suction pipe 63 has a bellows-like bellows which can be restored in the extending direction. 64 is connected in communication with the suction pipe 63. The bellows 64 is a synthetic resin member capable of returning in the extending direction, that is, the direction in which the internal volume increases, has a predetermined spring constant, and the inside serves as a solution storage portion.

The piston P is attached to the upper part of the bellows 64.
The connecting part 65 to which the suction pipe 61 of is connected is integrally molded, and only the inflow of the solution from the container body Y into the bellows 64 is allowed upstream of the bellows 64, that is, between the suction pipe 63 and the bellows 64. A valve B is provided, and on the other hand, a check valve G is provided downstream of the bellows 64, that is, between the bellows 64 and the connecting portion 65, which allows only the outflow of the solution from the bellows 64 to the suction pipe 61 side of the piston portion P. It is provided.
In this embodiment, a conical valve body 33 ′ is used instead of the spherical valve body 33 in the example of FIGS. 1 to 8.
It goes without saying that even if the shape of the valve body is different, there is no change in the essential function of the valve.

The suction pipe 61, which is inserted into the holding portion 62 of the guide member 55, has its central portion expanded and its lower end connected to the connecting portion 65 of the bellows 64, and slides in the suction pipe 61. The suction slide pipe 66 is inserted into the suction pipe 61 slidably. The suction slide pipe 66 is formed integrally with the piston portion P. Inside the upper portion of the suction pipe 61, FIG.
A groove 61a is formed as shown in FIG. A bulge portion 66a is formed at the lower end of the suction slide pipe 66. The bulging portion 66a of the suction sliding pipe 66 can be fitted into the groove 61a formed in the suction pipe 61 or can be separated from the fitted state.

When packaging the container, as shown in FIG. 12, when the piston portion P is pushed down, the suction slide pipe 66 integral with the piston portion P slides down in the suction pipe 61 and is lowered. Move to. At this time, the bulging portion 66a formed at the lower end of the suction sliding pipe 66
12, the suction sliding pipe 66 can be elastically deformed so as to reduce the diameter, and can ride over the groove 61a formed in the suction pipe 61. This groove 61a
The suction slide pipe 66 that has passed over is stored in the suction pipe 61 as shown in FIG. In this way, by assembling each part with the suction storage pipe 66 housed in the suction pipe 61, the bellows
It is possible to fix the piston P in a depressed state by screwing the piston portion P into the mouth of the container without contracting 64. As a result, the entire length is shortened and the amount of upward projection is reduced, so that it is possible to prevent a loss in storage efficiency in packaging. In this way, by pushing the suction slide pipe 66 into the suction pipe 61, the deformation of the bellows 64 corresponding to the pushing length is prevented, and the elastic force of the bellows 64 is maintained by maintaining the elastically deformed state. Is less likely to be damaged. As a result, it is possible to prevent the return of the bellows 64 from being hindered.

When using the container, as shown in FIG. 10, when the piston portion P is pulled up, the suction slide pipe 66 integrated with the piston portion P slides upward in the suction pipe 61. . The upward sliding of the suction sliding pipe 66 causes the bulging portion 66 of the suction sliding pipe 66.
a is a groove 61a formed inside the suction pipe 61
Elastically intrudes into the groove, and the bulging portion 66a fits into the groove 61a.
When the piston portion P is pressed in this fitted state, the suction slide pipe 66 and the suction pipe 61 are integrally lowered, and the bellows 64 can be compressed. In this usage state,
Even if the suction sliding pipe 66 is pushed down, if the fitting state is set so as to overcome the spring force of the bellows 64 generated by the compression when used as a normal pump, this fitting state will not be released. As shown in FIG. 12, the suction sliding pipe 66 is not housed in advance in the suction pipe 61, but the suction pipe 61 and the suction sliding pipe 66 are once fitted to each other (a normal pump can be used. State)), when attempting to push the suction slide pipe 66 into the suction pipe 61 for packing, the bellows 64 should be compressed with a stroke larger than that of the normal suction operation. The fitting state of the bulging portion 66a and the groove 61a may be set so that the fitting state is released by the elastic force generated in 64 (greater force than when used as a pump). Even in such a system,
As in the case described above, the suction slide pipe 66 is housed in the suction pipe 61 as shown in FIG. 12, and therefore, the piston portion P is fixed to the mouth of the container without compressing the bellows 64, and the packing efficiency is improved. Can be increased.

The one shown in FIG. 13 uses a collar having a C-shaped cross section, and the C-shaped collar is fitted at the time of use and removed at the time of packing. FIG. 14 is an explanatory view of the C-shaped collar. The C-shaped collar 67 has a cylindrical shape, and a part of the cylinder is cut to cut the cutting portion 67a in order to easily cover the suction sliding pipe 66 from the outside. It has a C shape and has elasticity.

As shown in FIG. 13, when the container is used, the suction sliding pipe 66 is attached to the C-shaped collar 67.
The C-shaped collar 67 is fitted between the suction pipe 61 and the piston portion P while covering with. When the piston portion P is pressed in this fitted state, the suction slide pipe 66 and the suction pipe 61 cannot slide with each other because the C-shaped collar 67 exists. Therefore,
By pushing down the piston P, the suction pipe 61
Can be depressed to compress the bellows 64 (Fig. 9). On the other hand, when packing this container,
As shown in 15, the suction slide pipe 66 to C
When the shape collar 67 is removed, the suction slide pipe 66 slides in the suction pipe 61, descends downward, and is stored in the suction pipe 61. And in this state the cap 53
It can be fixed in the retracted state by screwing into the mouth of the container.

The one shown in FIG. 16 uses a T-shaped stopper. When this T-shaped stopper is used, it is inserted into and fitted into the cylinder portion 70 in the piston portion P, and is packed from the piston portion P when packed. It was designed to be released. FIG. 17 is an explanatory view showing a state in which the T-shaped stopper is attached to the piston portion P. The T-shaped stopper 68 is a disc 68a located on the top surface of the piston portion P and the disc 68a.
It has a solution inflow space 68b which is provided so as to hang down from the central portion of 68a. A solution outlet 68c is formed in the upper part of the solution inlet space 68b, and the solution rising from the container body Y in the solution inlet space 68b is communicated with the opening 42a of the piston P through the solution outlet 68c to the outside. Be projected. A fitting protrusion 68d is provided around the lower surface of the solution inflow space 68b. As shown in FIG. 18, the fitting protrusion 68d is press-fitted into a fitting groove 69 formed in the piston portion P to thereby form a T-shaped stopper.
68 is prevented from coming off from the piston portion P. Further, a protrusion 68e is provided on the lower surface of the disk 68a.
68e engages the piston portion P and the T-shaped stopper 68 to position each other in the rotational direction. That is,
By fitting the projection 68e into the recess on the upper surface of the piston P, the two are connected to each other, and the solution outlet 68c of the internal solution inflow space 68b and the opening 42a are relatively positioned to allow the solution to flow. be able to. Further, when packing the container, the T-shaped stopper 68 is used for the piston portion P.
You can remove it from the. That is, if the T-shaped stopper is removed, as shown in FIG. 19, the suction pipe 61 is housed in the cylinder 70, and therefore the suction pipe 61 is not pushed down to compress the bellows 64.

When the container is used, the T-shaped stopper 68 having such a structure is inserted into the cylinder 70 of the piston portion P as shown in FIG. 16, and the solution inflow pipe 68b of the T-shaped stopper 68 is inserted. With the lower end placed on the upper end of the suction pipe 61, the disk 68a of the T-shaped stopper 68
When is pressed downward, the bellows 64 can be compressed via the suction pipe 61.

[0040]

As described above, according to the present invention, since the bellows which itself functions as a member for containing the solution is provided and the solution in the container body can be sucked out by the expansion and contraction of the bellows, the spring is used. As in the case where there is no need for a member to contain the solution,
This has the effect of reducing the number of assembly steps. In addition, a bellows is compressed during use by providing a suction pipe and a suction sliding pipe that slides inside the suction pipe, and engaging and disengaging the suction pipe and the suction sliding pipe. In addition, since the suction sliding pipe is stored in the suction pipe at the time of packaging, there is an effect that loss in packaging can be prevented. At the same time, the suction pipe does not move downward, and therefore the bellows is not fixed in the compressed state.Therefore, the bellows do not permanently deform and lose its elastic force.As a result, the return of the bellows is hindered. There is an effect that there is no.

Further, a C-shaped collar for covering the suction sliding pipe is provided, and when the container is used, the suction sliding pipe is combined with the C-shaped collar and the C-shaped collar is fitted between the suction pipe and the piston portion. , The C-shaped collar is removed during packing so that the suction sliding pipe can be stored in the suction pipe, so when storing the suction sliding pipe in the suction pipe, simply remove the C-shaped collar. The effect is that it can be stored quickly.

Furthermore, a T-shaped stopper fitted to the piston portion is provided, and when the container is used, the T-shaped stopper is fitted to the piston portion, and the lower end of the solution inflow pipe of this T-shaped stopper is placed on the upper end of the suction pipe. At the same time, the T-shaped stopper is removed from the piston during packaging, so that the piston can be lowered. Therefore, in order to lower the piston, the T-shaped stopper fitted to the piston is used.
Since the shape stopper can be simply removed from above, the piston portion can be easily lowered and the workability is improved.

[Brief description of drawings]

FIG. 1 is an overall sectional view of an embodiment of a container to which the present invention is applied.

2 is an overall sectional view of a bellows unit of the container of FIG.

FIG. 3 is an enlarged sectional view of a valve chamber of the valve.

FIG. 4 is a cross-sectional view near the slit plate.

FIG. 5 is an explanatory diagram showing a shape of a slit of the slit plate.

FIG. 6 is an overall cross-sectional view when the piston portion is descending.

FIG. 7 is an overall cross-sectional view at the time of discharging the solution.

FIG. 8 is an overall cross-sectional view during storage.

FIG. 9 is an overall cross-sectional view in which a valve unit is mounted in another embodiment of the container to which the present invention is applied.

FIG. 10 is a cross-sectional view of a valve unit container according to another embodiment of the present invention when the container is used.

FIG. 11 is a partial cross-sectional explanatory view of FIG. 10.

FIG. 12 is a cross-sectional view of the valve unit according to another embodiment of the present invention when the container is packed.

FIG. 13 is a cross-sectional view of a valve unit container according to another embodiment of the present invention when the container is used.

FIG. 14 is a perspective view of a C-shaped collar as a modified example of the connecting means.

15 is a cross-sectional view of the container to which the connecting means of FIG. 14 is applied when the container is packed.

FIG. 16 is a cross-sectional view when the same is used.

FIG. 17 is a perspective view of a T-shaped stopper as a modified example of the connecting means.

18 is a partial cross-sectional view of a container to which the connecting means of FIG. 17 is applied.

FIG. 19 is a cross-sectional view of the same packaging.

FIG. 20 is a cross-sectional view of a valve unit of a conventional example in a lowered state.

FIG. 21 is a sectional view of a valve unit of a conventional example in a raised state.

[Explanation of symbols]

61 Suction pipe 61a groove 64 Bellows 66 Suction slide pipe 66a bulge 67 C color 68 T type stopper

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A47K 5/12 B65D 83/76 F04B 9/14 F04B 43/08

Claims (4)

(57) [Claims] 1. A valve unit which is inserted into a container body and sucks out a solution in the container body to the outside of the container body, and a suction pipe which is inserted into the container body and which is connected to an upper part of the suction pipe and extends. Direction returnable bellows, a suction pipe connected to the upper part of the bellows and communicating with the internal space, a suction slide pipe slidably inserted in the suction pipe, and the suction slide pipe. It is provided between the suction pipe and when the container is used, the bellows can be compressed by mechanically connecting the suction pipe and the suction sliding pipe, and at the time of packaging, the suction pipe and the suction sliding pipe. A connecting means is provided which is slidable with respect to the pipe and allows the suction slide pipe to be stored in the suction pipe. Valve unit, characterized in that the. 2. The connecting means is detachably attached to the outer periphery of the suction slide pipe, and has an outer diameter larger than the inner diameter of the suction pipe, so that the suction slide pipe is inserted into the suction pipe. The valve unit according to claim 1, characterized in that the valve unit is blocked. 3. The suction pipe is provided at the upper end of the suction pipe.
The piston part that can slide on the pipe
The connecting means is detachably inserted into the piston portion.
To prevent the suction pipe from sliding.
The valve unit according to claim 1, which is characterized. 4. A valve according to any one of claims 1 to 3.
Unit and this valve unit is detachably attached
A container body having a container body.