A device for maintaining negative pressure during power and gas outages

Abstract

This invention provides a device for maintaining negative pressure during power and gas outages, comprising a negative pressure storage component, a negative pressure maintaining component, and a suction device. The negative pressure storage component includes a negative pressure storage tank and a vacuum pump connected to the tank. The negative pressure maintaining component includes a positive pressure storage tank and a negative pressure generator connected to it. The suction device includes a suction cup and a negative pressure tubing connected to it. The suction device is connected to both the negative pressure storage component and the negative pressure maintaining component to provide two sets of negative pressure sources, extending the negative pressure holding time within the suction device. When the vacuum pump stops operating, a backup air source is activated. When the suction cup negative pressure is below -50 kPa, the first solenoid valve is opened to control the negative pressure generator to produce negative pressure. When the negative pressure is above -70 kPa, the first solenoid valve is closed, avoiding continuous opening of the solenoid valve and effectively conserving compressed air from the positive pressure storage tank.

Description

Technical Field

[0001] This utility model relates to the field of suction equipment technology, specifically a device for maintaining negative pressure in the event of power failure or gas failure. Background Technology

[0002] In the production of new energy vehicle battery cells, processes such as transporting battery modules into boxes are too heavy for manual handling and therefore require mechanical handling. Traditional clamping fixtures, when used with multiple cells, are prone to causing the middle cells to fall. Furthermore, there is no space reserved around the cells at the box-loading station for clamping. Therefore, a suction cup gripper was developed. However, if the factory experiences a power or gas outage while the suction cup is gripping the cells, the cells will immediately fall, posing a safety hazard. It is necessary to maintain the suction capacity of the suction cup after a power or gas outage so that personnel can react. Therefore, we have made an improvement and proposed a negative pressure maintenance device for power and gas outages. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a device for maintaining negative pressure in the event of power failure or gas failure, so as to solve the problems mentioned in the background art.

[0004] The technical problem solved by this utility model is achieved by the following technical solution: a device for maintaining negative pressure during power outages and gas outages, comprising:

[0005] Negative pressure gas storage device; the negative pressure gas storage device includes a negative pressure gas storage tank and a vacuum pump connected to the negative pressure gas storage tank;

[0006] A negative pressure maintaining component; the negative pressure maintaining component includes a positive pressure gas storage tank and a negative pressure generator connected to the positive pressure gas storage tank;

[0007] The suction device includes a suction cup and a negative pressure tube connected to the suction cup. The negative pressure tube is connected to a negative pressure storage tank and a negative pressure generator respectively through a three-way pipe joint. The negative pressure tube is connected to two sets of negative pressure suction components respectively, so as to maintain the suction stability of the suction cup in the event of power failure and gas failure.

[0008] As a further embodiment of this utility model:

[0009] The negative pressure gas storage tank and the vacuum pump are connected by a first branch pipe. The first branch pipe is equipped with a ball valve for controlling the on / off state and a first one-way valve for controlling the airflow direction, so as to use the vacuum pump to generate negative pressure in the negative pressure gas storage tank. One side of the negative pressure gas storage tank is connected to one side of the three-way pipe joint through a gas pipe.

[0010] As a further embodiment of this utility model:

[0011] The positive pressure gas tank and the negative pressure generator are connected by a second branch pipe. The second branch pipe is equipped with a first solenoid valve that controls the on / off state. The first solenoid valve is electrically connected to a backup power supply so that it can operate to open the second branch pipe in the event of a power failure. The positive pressure gas in the positive pressure gas tank enters the negative pressure generator, causing the negative pressure generator to generate negative pressure. The other side of the negative pressure generator is connected to the other side of the three-way pipe joint through a third branch pipe to maintain the negative pressure suction capacity of the suction cup component. The third branch pipe is equipped with a second one-way valve that controls the airflow direction.

[0012] As a further embodiment of this utility model:

[0013] The negative pressure fitting includes a gas distribution block and a control valve arranged in sequence. The gas distribution block is connected to a tee pipe joint through a fourth branch pipe. Several gas distribution ports are distributed at the outer end of the gas distribution block. The gas distribution ports are connected to the control valve through a fifth branch pipe to control the air intake. A sixth branch pipe is distributed outside the control valve and is connected to the suction cup component.

[0014] As a further embodiment of this utility model:

[0015] The control valve includes a valve seat and a valve inlet and a valve outlet disposed on the valve seat. The valve inlet is connected to a fourth branch pipe, and the valve outlet is connected to a fifth branch pipe, so as to be connected to a suction cup component through the fifth branch pipe. The valve seat is provided with a valve plate for controlling the opening and closing of the internal air passage. The valve seat is provided with a cylinder for controlling the movement of the valve plate. The cylinder is connected to a second solenoid valve, so as to control the movement of the cylinder through the second solenoid valve.

[0016] As a further embodiment of this utility model:

[0017] The suction cup component includes a flange plate and suction cup bodies distributed at the lower end of the flange plate. A negative pressure interface is provided on one side of the suction cup body, which is connected to the sixth branch pipe. A negative pressure detection port and a vacuum breaking port are also provided on one side of the suction cup body. A negative pressure gauge is connected to the negative pressure detection port to detect the air pressure inside the suction cup body. A solenoid valve is connected to the vacuum breaking port to allow air to be released, thereby breaking the vacuum state inside the suction cup body and releasing the sucked material.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] The negative pressure storage device is equipped with a negative pressure storage tank. After power failure, the vacuum pump stops working, and the negative pressure in the negative pressure storage tank can be consumed by the suction cup. A first one-way valve is provided between the vacuum pump and the negative pressure storage tank to disconnect the first branch pipe after the vacuum pump stops working, preventing negative pressure from leaking from the vacuum pump. A ball valve is also provided so that the channel can be manually closed.

[0020] The suction device is connected to both the negative pressure storage unit and the negative pressure maintenance unit to set up two sets of negative pressure sources, extending the negative pressure holding time within the suction device. When the vacuum pump stops operating, a backup air source starts. When the suction cup negative pressure is below -50 kPa, the first solenoid valve opens to control the negative pressure generator to produce negative pressure. When the negative pressure is above -70 kPa, the first solenoid valve closes, avoiding continuous opening of the solenoid valve and effectively saving compressed air from the positive pressure storage tank.

[0021] A second one-way valve is also installed on the third branch pipe on one side of the negative pressure generator. When the negative pressure generator stops working, it can automatically close the passage to prevent air leakage. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the connection structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the gas distribution block structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the suction cup component of this utility model;

[0025] The diagram shows the following components: 1. Negative pressure gas storage tank; 2. Positive pressure gas storage tank; 3. Negative pressure generator; 4. Suction cup component; 5. T-joint; 6. Backup power supply; 7. Gas distributor; 8. Control valve; 9. Negative pressure gauge; 11. Vacuum pump; 12. First branch pipe; 13. Ball valve; 14. First check valve; 21. Second branch pipe; 22. First solenoid valve; 23. Third branch pipe; 24. Second check valve; 41. Flange plate; 42. Suction cup body; 43. Negative pressure interface; 44. Negative pressure detection port; 45. Vacuum breaking port; 71. Fourth branch pipe; 72. Gas distributor port; 73. Fifth branch pipe; 74. Sixth branch pipe; 81. Valve inlet; 82. Valve outlet; 83. Valve seat; 84. Cylinder; 85. Second solenoid valve. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0027] like Figures 1-3 As shown, this embodiment provides a device for maintaining negative pressure in the event of power failure or gas failure, including a negative pressure storage component, a negative pressure maintaining component, and a suction device; wherein, the negative pressure storage component includes a negative pressure storage tank 1 and a vacuum pump 11 connected to the negative pressure storage tank 1; the negative pressure maintaining component includes a positive pressure storage tank 2 and a negative pressure generator 3 connected to the positive pressure storage tank 2;

[0028] The suction device includes a suction cup 4 and a negative pressure tube connected to the suction cup 4. The negative pressure tube is connected to the negative pressure storage tank 1 and the negative pressure generator 3 respectively through a three-way pipe joint 5. The negative pressure tube is connected to two sets of negative pressure suction devices respectively, so as to maintain the suction stability of the suction cup 4 in the state of power failure and gas failure.

[0029] In this embodiment, the negative pressure gas storage tank 1 and the vacuum pump 11 are connected by a first branch pipe 12. The first branch pipe 12 is equipped with a ball valve 13 for controlling the on / off state and a first one-way valve 14 for controlling the airflow direction, so as to use the vacuum pump 11 to generate negative pressure in the negative pressure gas storage tank 1. One side of the negative pressure gas storage tank 1 is connected to one side of the three-way pipe joint 5 through a gas pipe.

[0030] In this embodiment, the positive and negative pressure gas storage tank 2 and the negative pressure generator 3 are connected by a second branch pipe 21. The second branch pipe 21 is equipped with a first solenoid valve 22 for controlling the on and off states. The first solenoid valve 22 is electrically connected to the backup power supply 6 so that it can operate to open the second branch pipe 21 in the power-off state. The positive pressure gas in the positive pressure gas storage tank 2 enters the negative pressure generator 3, causing the negative pressure generator 3 to generate negative pressure. The other side of the negative pressure generator 3 is connected to the other side of the three-way pipe joint 5 through a third branch pipe 23 to maintain the negative pressure suction capability of the suction cup component 4. The third branch pipe 23 is equipped with a second one-way valve 24 for controlling the airflow direction.

[0031] In this embodiment, the negative pressure pipe fitting includes a gas distribution block 7 and a control valve 8 arranged sequentially. The gas distribution block 7 is connected to the tee connector 5 through a fourth branch pipe 71. Several gas distribution ports 72 are distributed at the outer end of the gas distribution block 7. The gas distribution ports 72 are respectively connected to the control valve 8 through a fifth branch pipe 73 to control the air intake. A sixth branch pipe 74 is distributed outside the control valve 8 and communicates with the suction cup component 4.

[0032] The control valve 8 includes a valve seat 83 and a valve inlet 81 and a valve outlet 82 disposed on the valve seat 83. The valve inlet 81 is connected to the fourth branch pipe 71, and the valve outlet 82 is connected to the fifth branch pipe 73, so as to be connected to the suction cup component 4 through the fifth branch pipe 73. The valve seat 83 is provided with a valve plate for controlling the opening and closing of the internal air passage. The valve seat 83 is provided with a cylinder 84 for controlling the action of the valve plate. The cylinder 84 is connected to the second solenoid valve 85, so as to control the action of the cylinder 84 through the second solenoid valve 85.

[0033] In this embodiment, the negative suction cup component 4 includes a flange plate 41 and a suction cup body 42 distributed at the lower end of the flange plate 41. A negative pressure interface 43 is provided on one side of the suction cup body 42, and the negative pressure interface 43 is connected to the sixth branch pipe 74. A negative pressure detection port 44 and a vacuum breaking port 45 are also provided on one side of the suction cup body 42. The negative pressure detection port 44 is externally connected to a negative pressure gauge 9 to detect the air pressure inside the suction cup body 42. The vacuum breaking port 45 is externally connected to a solenoid valve to vent air to break the vacuum state inside the suction cup body 42 and release the sucked material.

[0034] The backup power supply 6 provides 24V power to the solenoid valve. The negative pressure gauge 9 is installed on the suction cup body 42 to detect negative pressure and provide a signal to control the first solenoid valve 22.

[0035] The working principle of this utility model is as follows: In the event of a power outage and gas outage, the vacuum pump 11 stops working, the negative pressure decreases, the first one-way valve 14 immediately closes, and the negative pressure in the negative pressure storage tank 1 continues to supply negative pressure to the suction cup body. After the control valve 8 is de-energized, it remains in the open state to ensure a continuous supply of negative pressure to the suction cup. When the negative pressure in the negative pressure storage tank 1 decreases, the negative pressure value of the suction cup body decreases synchronously. When the negative pressure gauge detects that the negative pressure is too low, the first solenoid valve 22 is opened, and the positive pressure in the positive pressure storage tank 2 enters the negative pressure generator 3 through the solenoid valve. The negative pressure generator 3 starts to work and generates negative pressure. The negative pressure generated by the negative pressure generator 3 is greater than the negative pressure in the negative pressure pipe. The second one-way valve 24 is opened to start providing negative pressure to the suction cup body 42 and storing negative pressure in the negative pressure storage tank 1 until the negative pressure gauge 9 shows that the negative pressure has risen to a safe range. Then the first solenoid valve 22 is closed to prevent the positive pressure from being consumed too quickly, thereby extending the adsorption time.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents. It should be noted that, in this document, the use of relational terms such as "first" and "second" is merely used to distinguish one entity or operation from another, and does not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In the absence of further restrictions, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A device for maintaining negative pressure in the event of power and gas failure, characterized in that: include: Negative pressure gas storage device; the negative pressure gas storage device includes a negative pressure gas storage tank (1) and a vacuum pump (11) connected to the negative pressure gas storage tank (1); Negative pressure maintaining component; the negative pressure maintaining component includes a positive pressure gas storage tank (2) and a negative pressure generator (3) connected to the positive pressure gas storage tank (2); The suction device includes a suction cup (4) and a negative pressure pipe connected to the suction cup (4). The negative pressure pipe is connected to the negative pressure storage tank (1) and the negative pressure generator (3) respectively through a three-way pipe joint (5).

2. The device according to claim 1, wherein: The negative pressure gas storage tank (1) and the vacuum pump (11) are connected by a first branch pipe (12). The first branch pipe (12) is equipped with a ball valve (13) for controlling the on / off state and a first check valve (14) for controlling the airflow direction, so that the vacuum pump (11) can generate negative pressure in the negative pressure gas storage tank (1). One side of the negative pressure gas storage tank (1) is connected to the other side of the three-way pipe joint (5) through a gas pipe.

3. The device according to claim 1, wherein: The positive pressure storage tank (2) and the negative pressure generator (3) are connected by a second branch pipe (21). The second branch pipe (21) is equipped with a first solenoid valve (22) for controlling the on / off state. The first solenoid valve (22) is electrically connected to the backup power supply (6). The other side of the negative pressure generator (3) is connected to the other side of the three-way pipe joint (5) through a third branch pipe (23). The third branch pipe (23) is equipped with a second one-way valve (24) for controlling the airflow direction.

4. The device according to claim 1, wherein: The negative pressure fitting includes a gas distribution block (7) and a control valve (8) arranged in sequence. The gas distribution block (7) is connected to the tee connector (5) through the fourth branch pipe (71). Several gas distribution ports (72) are distributed at the outer end of the gas distribution block (7). The gas distribution ports (72) are connected to the control valve (8) through the fifth branch pipe (73). The control valve (8) is provided with a sixth branch pipe (74) and communicates with the suction cup component (4).

5. The device according to claim 4, wherein: The control valve (8) includes a valve seat (83) and a valve inlet (81) and a valve outlet (82) disposed on the valve seat (83). The valve inlet (81) is connected to the fourth branch pipe (71), and the valve outlet (82) is connected to the fifth branch pipe (73) so as to be connected to the suction cup component (4) through the fifth branch pipe (73). The valve seat (83) is provided with a valve plate for controlling the opening and closing of the internal air passage. The valve seat (83) is provided with a cylinder (84) for controlling the action of the valve (8) plate. The cylinder (84) is connected to the second solenoid valve (85) so as to control the action of the cylinder (84) through the second solenoid valve (85).

6. The device according to claim 5, wherein: The suction cup component (4) includes a flange plate (41) and suction cup bodies (42) distributed at the lower end of the flange plate (41). A negative pressure port (43) is provided on one side of the suction cup body (42), and the negative pressure port (43) is connected to the sixth branch pipe (74). A negative pressure detection port (44) and a vacuum breaking port (45) are also provided on one side of the suction cup body (42). A negative pressure gauge (9) is connected to the negative pressure detection port (44) to detect the air pressure inside the suction cup body (42). A solenoid valve is connected to the vacuum breaking port (45).

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