JP6937510B2 - Nozzle device - Google Patents

Description

The present invention relates to a nozzle device including a main body having a discharge port for discharging a liquid and a lever having one end attached to the main body to discharge the liquid.

Conventionally, nozzle devices that inject liquids have been widely used in fields such as horticulture, agriculture, and cleaning.

For example, in Patent Document 1, when the operating member approaches the nozzle body, the stopper is locked to the engaging portion of the operating member, so that the operation of the operating member is locked and the water flow state is maintained. A watering nozzle is disclosed in which a stopper is disengaged from an engaging portion of an operating member in accordance with a pressing operation of the unlocking means, so that the operation of the operating member is unlocked and the watering nozzle returns to the water stop state.

JP-A-2007-167705

On the other hand, in some cases, the nozzle device may be used for spraying chemicals such as pesticides. To deal with this, a stopper is provided to limit the movement of the lever in order to prevent the chemicals from being sprayed against the intention of the user due to an erroneous lever operation or a lever operation by a third party. There is.

However, if the user forgets to operate the stopper itself, the lever can be operated incorrectly or the lever can be operated by a third party, so that chemicals may be sprayed against the intention of the user. Such a problem has not been devised in Cited Document 1, and cannot be solved by the watering nozzle of Cited Document 1.

The present invention has been made in view of such circumstances, and an object of the present invention is to include a main body having a discharge port for discharging a liquid, and a lever having one end attached to the main body to discharge the liquid. An object of the present invention is to provide a nozzle device capable of preventing liquid from being sprayed against the will of the user.

The nozzle device according to the present embodiment is a nozzle device including a main body having a discharge port for discharging a liquid and a lever having one end attached to the main body to discharge the liquid, and is provided on the main body of the lever. It is characterized by including a first limiting portion that limits the operation and a hooking portion that is provided on one end side of the lever and that hooks the first limiting portion.

In the present embodiment, the operation of the lever is restricted by the hooking portion of the lever engaging with the first limiting portion.

In the nozzle device according to the present embodiment, the lever swings on a trajectory including a hooking position related to the hooking and a starting position where liquid discharge starts, and the lever is released by releasing the hooking. It is characterized in that it can be moved from the hooking position to the starting position.

In the present embodiment, when the hooking portion of the lever and the first limiting portion are released, the lever can only move from the hooking position to the starting position. Yes, the liquid is not immediately discharged from the discharge port.

The nozzle device according to the present embodiment is characterized in that the first limiting portion always presses the lever against the hooking position.

In the present embodiment, the first limiting portion always pushes the lever to the hooking position. Therefore, for example, when the user releases the lever, the lever moves to the hooking position. , The hooking with the first limiting portion is performed again.

The nozzle device according to the present embodiment is characterized in that the hooking portion has a through hole penetrating the lever, the first limiting portion has a rod shape, and penetrates the lever through the through hole. And.

In the present embodiment, such hooking is performed while the first limiting portion passes through the through hole of the hooking portion. Therefore, it is possible to prevent the hook from being easily released due to an erroneous operation, an external impact, or the like.

In the nozzle device according to the present embodiment, one end of the first limiting portion is attached to the main body and is rotatable, and the other end of the first limiting portion is provided on the main body by an elastic restoring force. An elastic member for urging the one end side of the lever is provided.

In the present embodiment, the other end of the first limiting portion is urged toward the one end side of the lever by the elastic restoring force of the elastic member. As a result, the first limiting portion always presses the lever against the hooking position.

The nozzle device according to the present embodiment is characterized in that the first limiting portion has at least a color different from that of the main body and the lever.

In the present embodiment, the first limiting portion has at least a color different from that of the main body and the lever, so that the user's attention can be drawn.

The nozzle device according to the present embodiment is provided at the other end of the lever and includes a second limiting portion that limits the operation of the lever.

In the present embodiment, since the second limiting portion is provided in addition to the first limiting portion, the operation of the lever can be more reliably restricted.

According to this embodiment, it is possible to prevent the nozzle device from spraying the liquid against the intention of the user.

It is a perspective view which shows the appearance of the nozzle device which concerns on this embodiment. It is sectional drawing of the nozzle apparatus which concerns on this embodiment. It is explanatory drawing explaining the operation of the 2nd restriction part in the nozzle apparatus which concerns on this embodiment. It is explanatory drawing explaining the lock / release of the valve opening operation of a lever by the 1st limiting part in the nozzle device which concerns on this Embodiment. It is explanatory drawing explaining the operation of the lever when the lever 2 valve opening operation is released by the 1st limiting part.

The nozzle device according to the embodiment will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view showing the appearance of the nozzle device according to the present embodiment. In the figure, reference numeral 100 represents a nozzle device according to the present embodiment. The nozzle device 100 includes a main body 1 and a lever 2.

The main body 1 includes a handle portion 3 gripped by a user, and an inflow port 4 through which a liquid flows into the main body 1 is provided at an end portion of the handle portion 3. Further, one end of the main body 1 is provided with a discharge port 5 for discharging the liquid flowing in from the inflow port 4.

One end of the lever 2 is attached to the main body 1, and the lever 2 can rotate around the one end. Further, the lever 2 controls the discharge of the liquid from the discharge port 5 by operating the valve body described later to open or close the valve.

Further, the nozzle device 100 includes an L-shaped lever guard 6 that surrounds the lever 2 along the rotation trajectory of the lever 2. The lever guard 6 prevents the lever 2 from being operated against the intention of the user due to a drop of the nozzle device 100, an impact from the outside, or the like, and the liquid is discharged.

Further, the nozzle device 100 according to the present embodiment further includes a first limiting unit 7 that limits the operation of the lever 2 and a second limiting unit 8. The first limiting portion 7 is provided on the main body 1, and the second limiting portion 8 is provided on the other end side of the lever 2. In the nozzle device 100 according to the present embodiment, the first limiting unit 7 and the second limiting unit 8 can reliably prevent the lever 2 from malfunctioning.

The main body 1 has a first opening 13 and a second opening 14 formed in order from the discharge port 5 side on the inner side surface facing the lever guard 6. The first opening 13 and the second opening 14 are rectangular through holes. The lever 2 penetrates the main body 1 in and out through the first opening 13, and the first limiting portion 7 penetrates the main body 1 in and out through the second opening 14.

FIG. 2 is a cross-sectional view of the nozzle device 100 according to the present embodiment.

The liquid flowing in from the inflow port 4 flows into the valve chamber 11 via the inflow path 41. The liquid that has flowed into the valve chamber 11 flows into the discharge path 51 when the valve is opened by the user operating the lever 2. The liquid is discharged from the discharge port 5 through the discharge path 51.

The valve chamber 11 has a valve body (not shown), and one end of a valve shaft is connected to the valve body. The other end 12 of the valve shaft protrudes from the valve chamber 11 and is arranged near the contact portion 21 of the lever 2. A predetermined distance is provided between the contact portion 21 and the other end 12 of the valve shaft. Further, the valve chamber 11 has a valve seat (not shown). The valve body is, for example, spherical, and is separated from and detached from the valve seat. When the valve body is in contact with the valve seat, the valve is closed and the liquid from the inflow path 41 cannot flow into the discharge path 51. When the valve body is separated from the valve seat, the valve is opened and the liquid from the inflow path 41 flows into the discharge path 51. Further, the valve body is urged by a spring (not shown) in a direction in contact with the valve seat.

One end 22 of the lever 2 is rotatably attached to the vicinity of the discharge path 51 of the main body 1 via the first opening 13. Therefore, although the lever 2 can rotate around one end 22, the movement of the lever 2 is restricted by the lever guard 6. Therefore, the lever 2 swings in the direction of contact with the main body 1 and the handle portion 3.

When the lever 2 moves in the direction approaching the main body 1 and the handle portion 3, the contact portion 21 presses the other end 12 of the valve shaft in the axial direction of the valve shaft. As a result, the valve body on one end side of the valve shaft is separated from the valve seat to open the valve, and the liquid flows out into the discharge path 51. On the other hand, when the lever 2 moves away from the main body 1 and the handle portion 3, for example, when the user releases the lever 2, the valve body is pressed in the direction in contact with the valve seat by the action of the spring. The valve is closed and the liquid does not flow into the discharge path 51.

The lever 2 has the shape of an S (S) character having a predetermined thickness in the swinging direction (detachment direction). The lever 2 has a through hole 24 (hooking portion) that penetrates the lever 2 in the thickness direction in the vicinity of one end 22 in the longitudinal direction thereof. The through hole 24 is a rectangular hole formed along the longitudinal direction of the lever 2. The first limiting portion 7 is provided so as to penetrate the lever 2 through the through hole 24, and the through hole 24 engages with the first limiting portion 7 as described later. Since the through hole 24 has a size sufficiently larger than that of the first limiting portion 7 in the longitudinal direction of the lever 2, the lever 2 has the main body 1 and the handle portion 3 while the first limiting portion 7 penetrates the through hole 24. You can move in the direction of contact with.

A grip portion 25 is formed on the other end 23 side of the lever 2. For example, the user grips the grip portion 25 and pulls (swivels) the lever 2 in a direction approaching the main body 1 and the handle portion 3 to open the valve and discharge the liquid from the discharge port 5.

The grip portion 25 is provided with a second limiting portion 8. The second limiting portion 8 is provided on the inner side surface of the grip portion 25 facing the handle portion 3. The second limiting portion 8 has a substantially strip shape, and one end 81 of the second limiting portion 8 is rotatably attached to the grip portion 25. That is, the second limiting portion 8 rotates about one end 81.

FIG. 3 is an explanatory diagram illustrating the operation of the second limiting unit 8 in the nozzle device 100 according to the present embodiment.
The other end 82 of the second limiting portion 8 rotates around one end 81 in the direction of the arrow in FIG. On the other hand, a protrusion 31 is formed on the inflow port 4 side on the surface of the handle portion 3 facing the grip portion 25. The other end 82 of the second limiting portion 8 rotates and stops when it is caught by the protrusion 31 (indicated by a two-dot chain line in FIG. 3). At this time, the operation of the lever 2 moving in the direction approaching the main body 1 and the handle portion 3 (hereinafter referred to as the valve opening operation) cannot be performed. That is, the user can lock the valve opening operation of the lever 2 by rotating the second limiting portion 8 (the other end 82) until it is caught by the protrusion 31 as needed.

Further, the nozzle device 100 according to the present embodiment is not limited to this. The second limiting portion 8 is provided with a notch, and a protrusion corresponding to the notch is formed on the inner surface of the grip portion 25 so that the notch and the protrusion can be locked. You may. As a result, the user can fix the second limiting unit 8 to the lever 2 when the second limiting unit 8 is not used, and can maintain the released state of the valve opening operation of the lever 2.

Further, the second limiting portion 8 has at least a different color from the main body 1, the handle portion 3, and the lever guard 6. As a result, when the user operates the second limiting unit 8 to lock / unlock the valve opening operation of the lever 2, the user's attention can be drawn.

As described above, the nozzle device 100 according to the present embodiment includes the first limiting unit 7. The first limiting unit 7 is provided on the main body 1. One end 71 of the first limiting portion 7 is rotatably attached to the vicinity of the valve chamber 11 via the second opening 14 of the main body 1. The first limiting unit 7 can rotate around one end 71.

The other end 72 of the first limiting portion 7 extends toward the lever 2. The other end 72 of the first limiting portion 7 penetrates the lever 2 through the through hole 24 and protrudes from the surface of the lever 2 facing the lever guard 6. Further, the portion protruding in this way is bent along the lever 2 to form the bent portion 75. Therefore, it is possible to prevent the first limiting portion 7 from coming out of the through hole 24.

As will be described later, the main body 1 is provided with an elastic member S that urges the other end 72 of the first limiting portion 7 toward one end 22 of the lever 2. That is, a force that rotates the other end 72 toward the one end 22 of the lever 2 always acts on the first limiting portion 7. Therefore, at the time of hooking, the inner side surface 241 near one end 22 of the lever 2 in the through hole 24 comes into contact with the first limiting portion 7.

The first limiting portion 7 has a step 74 at a position facing the inner side surface 241 at the end portion on the other end 72 side. The step 74 is recessed so as to correspond to the shape of the edge of the through hole 24.
In other words, a recess 73 composed of a step 74 and a bent portion 75 is formed at the end of the first limiting portion 7 on the other end 72 side. As shown in FIG. 2, the dimension L of the recess 73 in the extending direction of the first limiting portion 7 is slightly larger than the thickness of the lever 2. Therefore, in the lever 2, the edge portion (hereinafter, the engaging edge portion 242) related to the inner side surface 241 of the through hole 24 engages with the recess 73 of the first limiting portion 7.

In this way, when the engaging edge portion 242 engages with the recess 73, the lever 2 cannot operate unless such engagement is released. That is, since the lever 2 is hooked on the first limiting portion 7 by engaging the engaging edge portion 242 and the recess 73, the user can lock the valve opening operation of the lever 2.

Hereinafter, the operation of the lever 2 will be described in detail with reference to the locking of the valve opening operation of the lever 2 by the first limiting unit 7. FIG. 4 is an explanatory view illustrating the locking / unlocking of the valve opening operation of the lever 2 by the first limiting unit 7 in the nozzle device 100 according to the present embodiment, and FIG. 5 is an explanatory view showing the lever by the first limiting unit 7. It is explanatory drawing explaining the operation of the lever 2 when the valve opening operation of 2 is released. Hereinafter, for convenience of explanation, the locking of the valve opening operation of the lever 2 by the second limiting unit 8 will not be considered.

As described above, when the engaging edge portion 242 and the recess 73 are engaged and the lever 2 is hooked on the first limiting portion 7, the valve opening operation of the lever 2 is locked. Therefore, the user who desires the valve opening operation of the lever 2 needs to release the engagement of the lever 2 by the first limiting unit 7. At this time, the user, for example, uses the index finger to push the bent portion 75 of the other end 72 of the first limiting portion 7 in the direction of the arrow in FIG. 4 to rotate the first limiting portion 7 (2 in FIG. 4). See the dotted line section). (Hereinafter, the rotation direction of the first limiting unit 7 at this time is referred to as a positive direction).

As a result, the engagement of the engaging edge portion 242 and the recess 73 is released, and the lever 2 is released from being hooked by the first limiting portion 7, so that the lever 2 rotates in the direction approaching the main body 1 and the handle portion 3. (Move) It becomes possible to operate. (Hereinafter, the rotation direction of the lever 2 at this time is referred to as a positive direction).

On the other hand, the main body 1 is provided with an elastic member S that urges the other end 72 of the first limiting portion 7 to the one end 22 side of the lever 2 by the elastic restoring force. The elastic member S is, for example, a linear rubber, one end of which is fixed in the vicinity of one end 22 of the lever 2, and the other end of which is fixed to the portion 71 of one end of the first limiting portion 7. The elastic restoring force of the elastic member S always acts on the other end 72). Therefore, a force that rotates the first limiting portion 7 (the other end 72) toward one end 22 of the lever 2 always acts on the first limiting portion 7. By the action of such an elastic member S, the first limiting portion 7 rotates the lever 2 in a direction away from the main body 1 and the handle portion 3. In other words, the first limiting unit 7 always urges the lever 2 to move to a position where the lever 2 is engaged with the lever 2. The elastic member S may be a spring, not limited to the above description.

Therefore, in the nozzle device 100 according to the present embodiment, even if the user temporarily releases the hooking of the lever 2 by the first limiting unit 7, if the user releases the grip portion 25 of the lever 2, the user releases the lever 2. The first limiting unit 7 engages with the lever 2 by itself. That is, when the user releases the grip portion 25 of the lever 2, the first limiting portion 7 rotates in the direction opposite to the forward direction by the action of the elastic member S, whereby the lever 2 and the first limiting portion 7 The lever 2 is rotated in the direction opposite to the forward direction until the position where the hooking with the lever 2 is performed.

With such a configuration, even if the user forgets to lock the valve opening operation of the lever 2, that is, to operate the first limiting unit 7 or the second limiting unit 8, the lever itself The valve opening operation of 2 is locked, and it is possible to reliably prevent the liquid from being discharged against the intention of the user.

Further, in the nozzle device 100 according to the present embodiment, as described above, the hooking of the first limiting portion 7 and the lever 2 is separated from the grip portion 25 on the other end 23 side of the lever 2. It is done on the 22nd side at one end. Therefore, it is possible to prevent the user from accidentally releasing the hook of the lever 2 by touching the bent portion 75 of the first limiting portion 7 when the user grips the grip portion 25 for the valve opening operation of the lever 2. can.

Further, the first limiting portion 7 has at least a different color from the main body 1, the handle portion 3, and the lever guard 6. Preferably, it also has a different color from the second limiting unit 8. As a result, when the user operates the first limiting unit 7 to lock / unlock the valve opening operation of the lever 2, the user's attention can be drawn.

On the other hand, even when the hooking of the lever 2 by the first limiting unit 7 is released, that is, even when the valve opening operation of the lever 2 is released, the liquid is not immediately discharged. The details will be described below.

As shown in FIG. 5, when the lever 2 is opened, the lever 2 moves from the P1 position (hooking position) to the P3 position via the P2 position (starting position). The P1 position is the position of the lever 2 when the valve opening operation of the lever 2 is locked, that is, when the first limiting portion 7 and the lever 2 are engaged. The P2 position is the critical position where the liquid discharge starts. When the lever 2 moves from the P2 position to the P3 position side, the liquid discharge is started. As described above, a predetermined distance is provided between the contact portion 21 of the lever 2 and the other end 12 of the valve shaft, and when the lever 2 is located at the P2 position, the contact portion 21 is provided for the first time. Is in contact with the other end 12 of the valve shaft. Therefore, even if the lever 2 moves from the P1 position to the P2 position, the liquid does not discharge.

That is, when the valve opening operation of the lever 2 is released by releasing the engagement of the lever 2 by the first limiting unit 7, the lever 2 can only move from the P1 position to the P2 position. .. Even if the lever 2 moves from the P1 position to the P2 position, the liquid is not discharged unless it moves from the P2 position to the P3 position side (positive direction).

Therefore, even if the user accidentally releases the valve opening operation of the lever 2, the liquid discharge can be stopped when he / she immediately notices his / her error and stops the operation of the lever 2.

Further, when the user pulls the lever 2 to move it from the P2 position to the P3 position side, the contact portion 21 presses the valve shaft (the other end 12) to enter the valve open state, so that the liquid is opened from the discharge port 5. Is discharged.

As described above, the nozzle device 100 according to the present embodiment includes the first limiting unit 7 in addition to the second limiting unit 8. For example, even if the user forgets to operate the second limiting unit 8 to lock the valve opening operation of the lever 2, the first limiting unit 7 locks the valve opening operation of the lever 2 by itself. Therefore, the operation of the lever 2 contrary to the intention of the user can be suppressed as much as possible.
Further, when the user releases the grip portion 25 of the lever 2, the first limiting portion 7 automatically engages with the lever 2, so that the user forgets to lock the valve opening operation of the lever 2. Even in such a case, it is possible to prevent the liquid from being discharged against the intention of the user.

Further, in the nozzle device 100 according to the present embodiment, the first limiting portion 7 and the lever 2 (through hole 24) are hooked while the first limiting portion 7 penetrates the through hole 24. ing. Therefore, the hooking of the first limiting portion 7 and the lever 2 is protected, and it is possible to prevent such hooking from being easily released by, for example, an external impact or accidentally touching the bent portion 75.

1 Main body 2 Lever 5 Discharge port 7 1st limiting part 8 2nd limiting part 22 One end 24 Through hole 71 One end 100 Nozzle device S Elastic member

Claims (6)

In a nozzle device including a main body having a discharge port for discharging a liquid and a lever having one end attached to the main body to discharge the liquid.
A first limiting part, one end of which is attached to the main body and is rotatable, which limits the operation of the lever.
A hooking portion provided on one end side of the lever and engaging with the first limiting portion, and a hooking portion .
A nozzle device provided on the main body, comprising an elastic member that urges the other end of the first limiting portion to the one end side of the lever by an elastic restoring force. The lever swings on a trajectory including a hooking position related to the hooking and a starting position at which liquid discharge starts.
The nozzle device according to claim 1, wherein the lever can be moved from the hooking position to the starting position by releasing the hooking. The nozzle device according to claim 2, wherein the first limiting portion always presses the lever against the hooking position. The hooking portion has a through hole that penetrates the lever.
The nozzle device according to any one of claims 1 to 3, wherein the first limiting portion has a rod shape and penetrates the lever through the through hole. The nozzle device according to any one of claims 1 to 4 , wherein the first limiting portion has at least a color different from that of the main body and the lever. The nozzle device according to any one of claims 1 to 5 , further comprising a second limiting portion provided at the other end of the lever and limiting the operation of the lever.

Images