JP7262136B2 - Bessel device - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Law On May 31, 2021, Minami Tekkosho Co., Ltd. sold the vessel device invented by Shingo Minami and Hiroyuki Sato to Onodera Construction Co., Ltd.

TECHNICAL FIELD The present invention relates to a vessel device used when loading a cargo such as earth and sand into the bed of a carrier vehicle such as a truck.

Construction work involving excavation generates a large amount of earth and sand. For example, in the so-called upside-down construction method, in which a structure is constructed from top to bottom, it is necessary to raise the earth and sand generated by excavating the ground to the ground and transport them. In this construction method, earth and sand are scooped up by an excavator and put into a vessel device suspended by a crane. After that, the vessel device containing the earth and sand is lifted to the ground by a crane vehicle, the earth and sand in the vessel device are discharged to a transport vehicle (truck) waiting on the ground, and transported to a predetermined location by the transport truck.

Conventionally, as a vessel device into which earth and sand to be carried out is put, there is known one having a box-shaped main body with an opening and closing lid on the bottom side (Patent Documents 1 and 2). The vessel device described in Patent Document 1 uses a hydraulic cylinder and a chain to open and close the bottom lid, and the vessel device described in Patent Document 2 uses a hydraulic cylinder and a wire to open and close the bottom lid. It is what I did.

Japanese Patent No. 2794529 JP-A-7-76483

However, in the conventional vessel apparatus described in Patent Documents 1 and 2, it is necessary to lift the bottom lid with a hydraulic cylinder in order to close the bottom opening, and a power source (hydraulic pump or engine) for lifting the weight of the bottom lid. etc.) must be installed. If such a power source is installed, the size, weight, and complexity of the vessel device are increased.

The present invention has been made in view of such circumstances, and the problem to be solved is to provide a vessel apparatus that can solve the problem of increasing the size, weight, and complexity of the vessel apparatus.

A vessel apparatus of the present invention includes a vessel body having a bottom opening and a bottom lid for opening and closing the bottom opening, the vessel apparatus comprising a main body actuator for lifting and lowering the vessel body, and rotating the bottom lid. and a connection bracket that connects one end sides of the body actuator and the bottom cover actuator. The bottom cover is rotatably connected to the vessel body so as to open and close the bottom opening. One end of the body actuator is connected to the connection bracket and the other end is connected to the vessel body. The bottom cover actuator is connected to the connection bracket at one end and to the bottom cover at the other end. When the bottom lid actuator extends, the bottom lid rotates in the opening direction to open the bottom opening. When the main body actuator extends with the bottom lid open, the vessel body is pushed down, and the vessel body is pushed down. As a result, the bottom lid is rotated in the closing direction, and the bottom lid closes the bottom opening of the vessel body.

The vessel apparatus of the present invention is configured to close the bottom lid by pushing down the vessel body with the main body actuator, and does not require a power source for pulling up the bottom lid. It is possible to solve problems such as

Explanatory drawing which shows an example of the usage condition of the vessel apparatus of this invention. FIG. 3 is a perspective view of the vessel apparatus of the present invention with the bottom cover closed. FIG. 3 is a perspective view of the vessel apparatus of the present invention with the bottom lid open. (a) is a front view showing an example of the vessel device of the present invention, (b) is a right side view of (a), (c) is a rear view of (a), and (d) is a left side view of (a). . 1 shows an example of an open/close control system for the bottom cover of the vessel apparatus of the present invention. Explanatory drawing which shows an example of the vessel apparatus which abbreviate|omitted the air breather. FIG. 6 is an explanatory diagram of the flow of hydraulic oil in the opening and closing control system shown in FIG. 5, where (a) shows the flow of hydraulic oil when opening the bottom cover, and (b) shows the flow of hydraulic oil when closing the bottom cover. Flow diagrams, (c) showing the hydraulic fluid flow when retracting the extended body actuator and bottom lid actuator. It is an explanatory diagram of the operation of the vessel apparatus of the present invention, in which (a) shows a state in which the bottom lid is closed, (b) shows a state in which the bottom lid is opened, and (c) is a cylinder for the vessel body. (d) shows the state in which the vessel device is grounded and the cylinder is contracted, and (e) shows the state in which the sling is lowered. (a) is an explanatory diagram showing an example of the guiding means, and (b) is an explanatory diagram when the guiding means is replaced. (a) is an explanatory diagram showing an example of a vessel device having a structure that absorbs the inclination of the vessel body, (b) is an enlarged explanatory diagram of part b of (a), and (c) is an explanation of the round hole of the upper connecting piece. FIG. (d) is an illustration of the elongated hole of the lower connecting piece.

(embodiment)
An example of an embodiment of the vessel device 1 of the present invention will be described with reference to the drawings. A vessel apparatus 1 of the present invention is an apparatus used to load an object to be conveyed into a conveying vehicle. For example, at a site where a reverse construction method such as that shown in FIG. can be used

As an example, the vessel device 1 shown in FIGS. 2 and 3 includes a rectangular tube-shaped vessel body 10 having openings at the top and bottom, and an opening on the bottom side of the vessel body 10 (hereinafter referred to as “bottom opening”) 16. It has a pair of double-door bottom lids 20 that open and close.

The vessel body 10 of this embodiment has a square tubular shape in which a front portion 11, a right side portion 12, a rear portion 13, and a left side portion 14 are continuous. is provided with a bottom opening 16 for discharging dirt.

Of the pair of bottom lids 20, one bottom lid (hereinafter referred to as "first bottom lid") 20a is attached to the right side portion 12, and the other bottom lid (hereinafter referred to as "second bottom lid") 20b is attached to the left side portion 14. installed. Both bottom lids 20 are rotatably attached by hinge metal fittings 21. By closing both bottom lids 20, the bottom opening 16 of the vessel body 10 can be closed, and by opening both bottom lids 20 It is configured so that the bottom opening 16 can be opened.

Although omitted in FIGS. 2 and 3, the vessel apparatus 1 of this embodiment includes a hydraulic actuator (hereinafter referred to as a "body actuator") 30 for lifting and lowering the vessel body 10, and a hydraulic actuator for opening and closing the bottom lid 20. A 40 (hereinafter referred to as "bottom cover actuator") is provided. In this embodiment, hydraulic cylinders are used as the body actuator 30 and the bottom lid actuator 40 .

In this embodiment, as main body actuators 30, a first main body actuator 30a is provided on the front portion 11 side of the vessel main body 10, and a second main body actuator 30b is provided on the back portion 13 side. In this embodiment, both body actuators 30 are designed to operate synchronously. Although not shown, covers are provided outside the main body first actuator 30a and the main body second actuator 30b to protect against sand and rainwater. As a result, malfunction due to clogging with sand or rust can be minimized. The cover may be provided as required, and can be omitted if unnecessary.

In this embodiment, as the bottom lid actuators 40, two bottom lid first actuators 40a and 40b for rotating the first bottom lid 20a and two bottom lid second actuators for rotating the second bottom lid 20b are provided. Actuators 40c and 40d are provided. In this embodiment, four bottom cover actuators 40 are designed to operate synchronously.

The main body first actuator 30a has a cylinder bottom connected to a first connection bracket (first suspension bracket) 51a, and a rod top connected to a main body first flange 17a projecting from the front portion 11 of the vessel body 10 with a pin. It is

Similarly, the main body second actuator 30b has a cylinder bottom connected to a second connection bracket (second hanging bracket) 51b, and a rod top connected to a main body second flange 17b protruding from the back surface portion 13 of the vessel body 10. connected by a pin.

The vessel main body 10 is configured to descend when the rods of the actuators 30 for both main bodies are pushed out from the cylinder tube and elongated, and to rise when the rods are retracted into the cylinder tube and contracted.

The rod top of the bottom lid first actuator 40a is connected to the first hanging bracket 51a, and the cylinder bottom is connected to the bottom lid first flange 22a projecting upward from the first bottom lid 20a. Similarly, the bottom lid second actuator 40c has a rod top connected to the first suspension bracket 51a and a cylinder bottom connected to the bottom lid third flange 22c projecting upward from the first bottom lid 20a.

The rod top of the bottom lid first actuator 40b is connected to the second hanging bracket 51b, and the cylinder bottom is connected to the bottom lid second flange 22b projecting upward from the second bottom lid 20b. Similarly, the bottom lid second actuator 40d has a rod top connected to the second hanging bracket 51b and a cylinder bottom connected to the bottom lid fourth flange 22d projecting upward from the second bottom lid 20b. Both bottom lids 20 are configured to open when the rod of the bottom lid actuator 40 to be connected is pushed out from the cylinder tube and elongated, and to close when the rod is pulled back into the cylinder tube and contracted.

Although not shown, shock absorbers (bumpers) are provided outside the main body first actuator 30a, the bottom lid first actuator 40a, and the bottom lid second actuator 40c. Damage to the actuator 40a and the bottom lid second actuator 40c can be prevented. Similar bumpers are provided on the outer sides of the body second actuator 30b, the bottom lid first actuator 40b, and the bottom lid second actuator 40d.

The first suspension bracket 51a and the first suspension rod 52a are connected via a first tie bracket 57a arranged therebetween, and the second suspension bracket 51b and the second suspension rod 52b are connected by a second tie arranged therebetween. They are connected via a bracket 57b.

Impact absorbing means 58 (first impact absorbing means 58a and second impact absorbing means 58b) are provided on the outer peripheries of the first suspension rod 52a and the second suspension rod 52b, respectively. By providing the impact absorbing means 58, it is possible to absorb the impact load due to the mass of the hanging hanger 53 that is generated when the vessel device 1 is landed, and to make the behavior of the hanging hanger 53 gentle. In this embodiment, a spring is used as the impact absorbing means 58, but the impact collecting means 58 may be other than the spring.

A suspension hanger 53 connects the first suspension rod 52a and the second suspension rod 52b. A locking bracket 54 is provided on the upper surface of the hanging hanger 53, and the locking bracket 54 is provided with a locking ring 55 for locking the hook C1 of the crane vehicle C (FIG. 1). In this embodiment, the first hanging rod 52a, the second hanging rod 52b, the hanging hanger 53, the locking bracket 54 and the locking ring 55 constitute a hanging means. A part of the suspending means can be omitted. The suspending means can also have other configurations.

As shown in FIGS. 4A to 4D, the vessel device 1 of this embodiment is equipped with a wireless receiver 61, a battery 62, an electromagnetic valve 63, an accumulator 64, and a pressure gauge 65. FIG. When the bottom cover 20 is opened and closed using a remote controller (not shown), the main body actuator 30 and both bottom cover actuators 40 are operated to open and close the bottom cover 20 . A non-remote controller can also be used for operation. The controller may be attached to the operator's seat of the crane vehicle C so that the operator of the crane vehicle C can operate it.

As shown in FIG. 5, a radio receiver 61 is connected to a battery 62 via a DC converter 66, and power supplied from the battery 62 is converted by the DC converter 66 (for example, converted from 18V to 24V) for radio reception. machine 61.

The radio receiver 61 includes, as solenoid valves 63, a solenoid valve 63a for the bottom cover 20 (hereinafter referred to as a "bottom cover solenoid valve") and a solenoid valve 63b for the vessel body 10 (hereinafter referred to as a "main body solenoid valve"). is connected.

The bottom lid electromagnetic valve 63a is connected to the bottom lid actuator 40 through an oil passage. An air breather 67 is connected to each bottom cover actuator 40 to prevent dust from entering from the outside. The air breather 67 can also be omitted. In this case, the oil passage can be connected to the airtight space of the vessel body 10 without being open to the atmosphere. This prevents dust and water vapor from entering the cylinder, thereby delaying the deterioration of the inside of the cylinder.

The bottom lid solenoid valve 63a is connected to a first accumulator (hereinafter referred to as an "extension control accumulator") 64a that controls the extension operation of the cylinder of the bottom lid actuator 40. As shown in FIG. In the oil passage between the expansion control accumulator 64a and the bottom cover electromagnetic valve 63a, there are a first variable throttle valve 68a for adjusting the flow rate of the hydraulic oil, and a second variable throttle valve 68a for automatically releasing the pressure when the pressure becomes excessive. A relief valve 69a and a first check valve 70a for preventing reverse flow of hydraulic oil are connected.

The main body solenoid valve 63b is connected to an extension control accumulator 64a that controls the extension operations of the cylinders of the main body actuator 30 and the bottom cover actuator 40 through an oil passage. In the oil passage between the bottom cover electromagnetic valve 63a and the expansion control accumulator 64a, there are a second variable throttle valve 68b for adjusting the flow rate of the hydraulic oil, and a second variable throttle valve 68b for automatically releasing the pressure when the pressure becomes excessive. A secondary relief valve 69b and a secondary check valve 70b for preventing reverse flow of hydraulic fluid are connected.

Each body actuator 30 is also connected to a second accumulator (hereinafter referred to as a "shrinkage control accumulator") 64b that controls the contraction operation of the body actuator 30. As shown in FIG. Variable throttle valves 71a and 71b with check valves for adjusting the flow rate of hydraulic oil are provided in the oil passages between the body actuators 30 and the contraction control accumulators 64b.

(motion)
The operation of the vessel device 1 of this embodiment will be described with reference to FIGS. 7(a) to 7(c). Here, the operation when the bottom lid 20 is opened, the operation when the opened bottom lid 20 is closed, and after the bottom lid 20 is closed, the main body actuator 30 and the bottom lid actuator 40 are returned to the initial state (contracted state). The operation will be described separately. Since the specific configuration of the switching control system is the same as in FIG. 5, reference numerals are omitted in FIGS. 7(a) to 7(c).

(1) Operation when the bottom lid is opened When the radio receiver 61 receives a signal to open the bottom lid 20, the bottom lid solenoid valve 63a opens to discharge the hydraulic oil from the bottom lid actuator 40. The rod of actuator 40 is pushed out. When the rod of the bottom lid actuator 40 is pushed out, the bottom lid 20 connected to the bottom lid actuator 40 rotates in the opening direction along with this operation, and the bottom opening 16 of the vessel body 10 is opened. . In this process, the hydraulic oil discharged from the bottom cover actuator 40 passes through the first variable throttle valve 68a and is stored (accumulated in pressure) in the expansion control accumulator 64a (see FIG. 7(a)).

(2) Operation when the bottom lid closes When the wireless receiver 61 receives a signal to close the bottom lid 20, the body electromagnetic valve 63b opens, and the hydraulic oil in the shrinkage control accumulator 64b is released to the variable throttle with check valve. It is introduced into one of the oil chambers of the body actuator 30 through the valves 71a and 71b, and the rod of the body actuator 30 is pushed out by the introduced hydraulic oil. When the rod of the body actuator 30 is pushed out, the vessel body 10 connected to the bottom lid actuator 40 is lowered along with this operation, and the bottom lid 20 is relatively rotated in the closing direction, and the vessel body 10 is lifted. Bottom opening 16 is closed. In this process, the hydraulic oil discharged from the other oil chamber of the body actuator 30 passes through the second variable throttle valve 68b and is accumulated (accumulated in pressure) in the expansion control accumulator 64a (see FIG. 7(b)). .

(3) Operation when returning the main body actuator and the bottom lid actuator to the initial state After the bottom lid 20 is closed, the vessel device 1 with the bottom lid 20 closed is grounded and suspended by the crane ( When the external force applied to the body actuator 30 and the bottom lid actuator 40 is removed), the hydraulic oil in the elongation control accumulator 64a passes through the check valves 70a and 70b to flow between one oil chamber of the bottom lid actuator 40 and the body. is introduced into one of the oil chambers of the actuator 30, and the rod of each actuator 30, 40 is pushed back. In each main body actuator 30, when the rod is pushed back by hydraulic oil introduced into one oil chamber, the hydraulic oil is discharged from the other oil chamber, and the discharged hydraulic oil flows into the variable throttle valve with check valve 71a, 71b into the compression control accumulator 64b (see FIG. 7(c)).

(how to use)
An example of how to use the vessel device 1 of the present invention will be described with reference to FIGS. 8(a) to 8(e). Here, the case of using the Vessel device 1 of the above embodiment is taken as an example. FIG. 8(a) shows a state in which earth and sand are thrown into the vessel body 10 with the bottom cover 20 closed.

In the state of FIG. 8(a), when the wireless receiver 61 receives a signal to open the bottom lid 20 transmitted from the remote controller, the four bottom lid actuators 40 are extended to open both bottom lids 20. As a result, the earth and sand inside the vessel body 10 are discharged (FIG. 8(b)).

After the earth and sand have been discharged, in the state of FIG. 8(b), when the wireless receiver 61 receives a signal to close the bottom cover 20 transmitted from the remote controller, the two body actuators 30 are extended. As a result, the vessel body 10 is lowered, and the two bottom lids 20 rotate to close the bottom opening 16 of the vessel body 10 (FIG. 8(c)).

From the state of FIG. 8(c), the vessel device 1 is grounded by a crane, and when the suspended load of the crane becomes low, the main body actuator 30 and the bottom cover actuator 40 all start to automatically contract, and all actuators shrinks (FIG. 8(d)). At this time, the hydraulic oil stored in the accumulator 64 bypasses the closed solenoid valve, passes through the check valve, and fills the hydraulic cylinder. Since the solenoid valve is closed, the hydraulic cylinder is held in a contracted state, thereby keeping the bottom lid 20 closed.

As shown in FIG. 8(d), when all the actuators are contracted, the vessel main body 10 is ready to be filled with earth and sand (FIG. 8(e)).

(Other embodiments)
The above-described embodiment is an example, and the vessel apparatus of the present invention can have a configuration other than the above-described embodiment. For example, in the vessel device 1 of the present invention, the suspension means connected to the first suspension rod 52a and the second suspension rod 52b fall in a predetermined direction (for example, the left direction or the right direction in FIG. 9A). Guide means 56 for guiding may also be provided. For the guiding means 56, for example, a tension spring 56 as shown in FIG. 9(a) can be used.

FIG. 9(a) shows a pull spring 56 (hereinafter referred to as "first pull spring 56a") provided on the side of the first suspension rod 52a. As shown in FIG. 9A, the suspension hanger 53 is connected by connecting the upper end side of the first tension spring 56a to the first suspension rod 52a and the lower end side thereof to a position near the left end of the first connection bracket 51a in the drawing. can be guided to the left side in the figure. When it is desired to guide the hanging hanger 53 to the right side in the drawing, the lower end side of the first tension spring 56a may be connected to the position near the right end of the first connecting bracket 51a in the drawing.

The end of the first tension spring 56a can be fixed, but as shown in FIG. 9(b), it is also possible to change the connection position on the lower end side. By doing so, the direction in which the suspension hanger 53 is laid down can be changed according to the site, so workability is improved. Specifically, as shown in FIG. 9B, by replacing the lower end side of the first tension spring 56a connected at the position near the left end in the drawing to the position near the right end in the drawing of the first connection bracket 51a, The tilting direction of the suspension hanger 53 can be guided to the right side in the figure.

Although only the first suspension rod 52a side is shown in FIGS. 9(a) and 9(b), a similar extension spring 56 (hereinafter referred to as "second extension spring 56b") is provided (see FIG. 10(a)). By providing the extension springs 56 on both the first suspension rod 52a side and the second suspension rod 52b, the suspension hanger 53 can be prevented from wobbling. The extension spring 56 may be provided only on either the first suspension rod 52a side or the second suspension rod 52b side.

Here, the case where the pull spring 56 is used as the guide means 56 is taken as an example, but the guide means 56 may be anything other than the pull spring 56 as long as it can guide the suspension hanger 53 in a specific direction. For example, rubber, gas dampers, weights, etc. may be substituted. Further, the guide means 56 may guide in a specific direction by pulling the first hanging rod 52a or the second hanging rod 52b, or by pushing them.

Further, in the vessel device 1 of the present invention, as shown in FIG. 9A, the suspension hanger 53 can be provided with a cushioning member 53a that abuts against the upper peripheral edge of the vessel body 10. As shown in FIG. By providing the suspension hanger 53 with the buffer member 53a, it is possible to reduce the impact when the suspension hanger 53 is knocked down, and prevent the vessel body 10 and the suspension hanger 53 from being damaged or deteriorated.

The buffer member 53a can be provided on a surface of the suspension hanger 53 that faces the upper peripheral edge of the vessel body 10 when the suspension hanger 53 is knocked down. The cushioning member 53a can also be provided on both sides of the hanging hanger 53. As shown in FIG. In either case, one or two or more cushioning members 53a can be provided on each surface of the hanging hanger 53 . The cushioning member 53 a can be provided on the upper peripheral edge of the vessel body 10 instead of being provided on the suspension hanger 53 or in addition to being provided on the suspension hanger 53 .

Further, in the vessel device 1 of the present invention, as shown in FIG. structure.

The suspension hanger 53 shown in FIGS. 10(a) to 10(d) includes two connecting pieces used for connecting the first hanging rod 52a and the second hanging rod 52b (hereinafter, the upper connecting piece is referred to as the "upper connecting piece 53b , and a connecting piece on the lower side is referred to as a "lower connecting piece 53c").

As shown in FIG. 10(c), the upper connecting piece 53b is provided with a round hole 53d, and as shown in FIG. 10(d), the lower connecting piece 53c is provided with an elongated hole 53e. Each of the first suspension rod 52a and the second suspension rod 52b passing through both the round hole 53d and the long hole 53e has its upper end portion passed through the round hole 53d fastened with a nut.

When a connecting piece having such a round hole 53d and a long hole 53e is used, even if the vessel body 10 is grounded and tilted on an inclined surface as shown in FIG. The suspending rod 52b can swing (movement in the longitudinal direction of the long hole 53e) by the length of the long hole 53e, and can absorb the inclination of the vessel body 10. FIG.

In order to widen the swinging range, the lower connecting piece 53c may be provided with a large hole having a diameter larger than that of the first suspension rod 52a and the second suspension rod 52b instead of the long hole 53e. In this case, since the first suspension rod 52a and the second suspension rod 52b can also swing in the lateral direction, the front-rear direction, and the oblique direction, tilting of the vessel body 10 can be absorbed more effectively.

The present invention is not limited to the structures and shapes of the above embodiments, and various modifications and changes are possible without departing from the gist of the present invention.

The vessel device 1 of the present invention can be used to carry out various items such as earth and sand generated during excavation work, accumulated earth and sand generated in disasters such as floods, and lumber (driftwood).

1 Vessel Device 10 Vessel Body 11 Front Part 12 Right Side Part 13 Back Part 14 Left Side Part 15 Top Opening 16 Bottom Opening 17a First Body Flange 17b Second Body Flange 20 Bottom Lid 20a First Bottom Lid 20b Second Bottom Lid 21 Hinge fitting 22a Bottom lid first flange 22b Bottom lid second flange 22c Bottom lid third flange 22d Bottom lid fourth flange 30 Body actuator 30a Body first actuator 30b Body second actuator 40 Bottom lid actuator 40a, 40b Bottom lid First actuators 40c, 40d Bottom cover second actuator 51a First connection bracket (first suspension bracket)
51b Second connection bracket (second suspension bracket)
52a first suspension rod (suspension rod)
52b second suspension rod (suspension rod)
53 Suspension hanger 53a Buffer member 53b Upper connecting piece 53c Lower connecting piece 53d Round hole 53e Long hole 54 Locking bracket 55 Locking ring 56 Guide means (pull spring)
56a first tension spring 56b second tension spring 57a first connecting bracket 57b second connecting bracket 58 impact absorbing means 58a first impact absorbing means 58b second impact absorbing means 61 radio receiver 62 battery 63 solenoid valve 63a bottom lid solenoid Valve 63b Solenoid valve for body 64 Accumulator 64a First accumulator (elongation control accumulator)
64b second accumulator (shrinkage control accumulator)
65 pressure gauge 66 DC converter 67 air breather 68a first variable throttle valve 68b second variable throttle valve 69a first relief valve 69b second relief valve 70a first check valve 70b second check valve 71a, 71b variable with check valve Throttle valve A Excavator B Truck C Crane C1 Hook

Claims (9)

In a vessel device comprising a vessel body having a bottom opening and a bottom lid that opens and closes the bottom opening,
a body actuator that moves the vessel body up and down, a bottom lid actuator that rotates the bottom lid, and a connection bracket that connects one end of the body actuator and the bottom lid actuator,
the bottom cover is rotatably connected to the vessel body so as to open and close the bottom opening;
one end of the body actuator is connected to the connection bracket and the other end is connected to the vessel body,
one end of the bottom lid actuator is connected to the connection bracket and the other end is connected to the bottom lid;
When the bottom lid actuator extends, the bottom lid rotates in the opening direction to open the bottom opening,
When the body actuator extends with the bottom lid open, the vessel body is pushed down, and the bottom lid rotates in the closing direction as the vessel body is pushed down, and the bottom lid moves the vessel body. the bottom opening is closed,
A Bessel device characterized by: In the vessel apparatus of claim 1,
the elongated body actuator and bottom lid actuator contract when the external force on the body actuator and bottom lid actuator is removed;
A Bessel device characterized by: In the vessel device according to claim 1 or claim 2,
the body actuator and the bottom cover actuator are hydraulic actuators,
the hydraulic actuator is connected to a hydraulic circuit,
The hydraulic circuit comprises at least a body solenoid valve, a bottom cover solenoid valve, a first accumulator and a second accumulator,
When the extended main body actuator and the bottom cover actuator contract, the main body solenoid valve and the bottom cover solenoid valve are in a closed state,
Hydraulic oil discharged from the first accumulator during contraction of the main body actuator and the bottom cover actuator is supplied to the oil chamber of the main body actuator and the oil chamber of the bottom cover actuator. Hydraulic oil discharged from the oil chamber is stored in the second accumulator,
A Bessel device characterized by: In the vessel device according to claim 1 or claim 2,
the body actuator and the bottom cover actuator are hydraulic actuators,
the hydraulic actuator is connected to a hydraulic circuit,
The hydraulic circuit comprises at least a body solenoid valve, a bottom cover solenoid valve, a first accumulator and a second accumulator,
When the bottom cover is opened, the body solenoid valve is closed and the bottom cover solenoid valve is opened,
Hydraulic oil discharged from the oil chamber of the hydraulic actuator during the process of opening the bottom cover is accumulated in the first accumulator.
A Bessel device characterized by: In the vessel device according to claim 1 or claim 2,
the body actuator and the bottom cover actuator are hydraulic actuators,
the hydraulic actuator is connected to a hydraulic circuit,
The hydraulic circuit comprises at least a body solenoid valve, a bottom cover solenoid valve, a first accumulator and a second accumulator,
When the bottom cover is closed, the body solenoid valve is opened and the bottom cover solenoid valve is closed,
Hydraulic oil discharged from the second accumulator in the process of closing the bottom cover is supplied to one oil chamber of the main body actuator, and hydraulic oil discharged from the other oil chamber of the main body actuator is supplied to the first oil chamber. stored in one accumulator,
A Bessel device characterized by: In the vessel apparatus according to any one of claims 1 to 5,
Equipped with a controller and a wireless receiver capable of receiving signals from the controller,
The radio receiver is mounted on the vessel body,
When a signal from the controller is received by the wireless receiver, the body actuator and/or the bottom cover actuator operate based on the signal.
A Bessel device characterized by: In the vessel apparatus according to any one of claims 1 to 6,
Suspension means connected to the connecting bracket;
A guiding means for guiding the hanging means to fall in a predetermined direction,
A Bessel device characterized by: In the vessel apparatus according to claim 7,
By switching the mounting position of the guiding means, the direction in which the hanging means falls down can be switched.
A Bessel device characterized by: In the vessel device according to claim 7 or claim 8,
The suspension means comprises a suspension rod and a suspension hanger connected to the connecting bracket,
The suspension rod is pivotably connected to the suspension hanger,
A Bessel device characterized by:

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