Gas cylinder pressure resistance detection device and detection system using same

Abstract

The utility model provides a gas cylinder pressure resistance detection device and a detection system applying the same, and belongs to the field of gas cylinder pressure resistance detection devices.The gas cylinder pressure resistance detection device comprises a first air cylinder and a frame body, the first air cylinder is fixed to the top of the frame body, the frame body is provided with a clamping device used for clamping a gas cylinder, the clamping device is hinged to the frame body, and a guide piece is fixed to the upper portion of the frame body; the top of the detection device is fixed to a first piston rod of the first air cylinder, an insertion pipe used for being inserted into a gas cylinder and sealing a bottle opening of the gas cylinder is installed at the bottom of the detection device, the detection device is connected with a gas pipe and a water pipe, and the gas pipe and the water pipe are connected with a control panel. According to the scheme, each detection device works independently, when one device breaks down, the device can be independently taken out for maintenance, the whole detection system cannot stop working, the working efficiency is high, and maintenance is convenient.

Description

Technical Field

[0001] The utility model belongs to the field of gas cylinder pressure resistance detection devices, and particularly relates to a gas cylinder pressure resistance detection device and a detection system applying the device. Background Art

[0002] A gas cylinder refers to a movable pressure vessel with a bottle-shaped main structure, generally filled with gases (which can be compressed gases, liquefied gases, dissolved adsorbed gases, etc.). After the production of gas cylinders, it is very important to conduct pressure resistance tests to determine whether they are qualified products.

[0003] There is a disclosed rotary gas cylinder leakage water detection machine (patent application number: CN201710769506.2), which includes a turntable, a plurality of gas cylinder lifting devices circumferentially arranged at the edge of the turntable, and a water tank corresponding to the gas cylinder lifting devices for detecting airtightness; the gas cylinder lifting device includes a bracket for fixing with the turntable, a rolling guide rail arranged on the bracket, a gas cylinder fixing device for moving up and down along the guide rail, and a lifting cylinder for driving the gas cylinder to move up and down.

[0004] This disclosed solution adopts the combined movement of the turntable and the lifting device to realize the cylindrical spiral curve movement of the gas cylinder in three-dimensional space. Compared with the double-layer spiral guide rail structure, it has a simple structure, a small floor area, and is easy to construct. However, its multiple gas cylinder lifting devices are connected as a whole, which is not convenient for increasing or decreasing the number of gas cylinder lifting devices. And when a single device fails, it needs to be disassembled and repaired, and the overall detection machine needs to stop working, affecting work efficiency; the detection method of this solution is to put the gas cylinder into the water tank and manually observe whether there are bubbles to judge airtightness. This method is not rigorous, has many influencing factors, and the accuracy of the airtightness detection result is relatively poor. Moreover, this solution can only detect airtightness and cannot detect the pressure resistance of the gas cylinder. Summary of the Utility Model

[0005] This application provides a gas cylinder pressure resistance detection device and a detection system applying the device, aiming to solve the problems that the lifting device of the existing gas cylinder detection device is not convenient to adjust the quantity, the whole machine needs to stop working during maintenance, the work efficiency is low, and the pressure resistance of the gas cylinder cannot be detected while detecting airtightness.

[0006] In order to achieve the above object, the utility model adopts the following technical solutions:

[0007] A gas cylinder pressure resistance detection device, comprising a first cylinder and a frame. The first cylinder is fixed to the top of the frame. The frame is equipped with a clamping device for clamping the gas cylinder. The clamping device is hinged to the frame. A guide member is fixed to the upper part of the frame. A moving plate is fixed to the guide member. A detection device is fixed to the moving plate. The top of the detection device is fixed to the first piston rod of the first cylinder. The bottom of the detection device is equipped with an insertion tube for inserting into the gas cylinder and sealing the gas cylinder mouth. The detection device is respectively connected with an air pipe and a water pipe, and the air pipe and the water pipe are connected with a control board.

[0008] Preferably, the detection device includes a connection head, a waterway interface, a communication device and an air path interface. The top of the connection head is fixed to the first piston rod. The bottom of the connection head is fixed to the communication device. One end of the waterway interface is communicated with the water pipe, and the other end of the waterway interface is communicated with the communication device. One end of the air path interface is communicated with the air pipe, and the other end of the air path interface is communicated with the communication device. The insertion tube is installed at the bottom of the communication device and is communicated with the communication device.

[0009] Preferably, second cylinders are correspondingly fixed to the front and rear sides of the communication device. When the insertion tube is pulled out of the gas cylinder, the second piston rods of the second cylinders extend and abut against the outer wall of the gas cylinder.

[0010] Preferably, the insertion tube includes a sealing ring and a tube body. The sealing ring is sleeved on the upper part of the tube body. The tube body is provided with air holes, which are adjacent to the sealing ring and located below the sealing ring. The bottom of the tube body is provided with a conical mouth, and both the air holes and the conical mouth are communicated with the inner cavity of the tube body.

[0011] Preferably, the clamping device includes a third cylinder, a first connecting member, a second connecting member, a third connecting member and a clamping member. The middle of the first connecting member is fixed to the third piston rod of the third cylinder. One end of the first connecting member is hinged to one end of the third connecting member. The other end of the third connecting member is hinged to one end of the second connecting member. The other end of the second connecting member is fixed to the clamping member. The upper and lower parts of the second connecting member are respectively hinged to the frame.

[0012] Preferably, the clamping member is installed with rubber rollers that can rotate thereon, and the number of rubber rollers is multiple.

[0013] Preferably, the control board is connected with a control element, and the control element is communicated with the air pipe. The guide member includes a slide rail, and a slider is slidably connected to the slide rail. The slider is fixed to the moving plate.

[0014] Preferably, a first drag chain is sleeved outside the water pipe, and a second drag chain is sleeved outside the air pipe. One ends of the first drag chain and the second drag chain are respectively fixed to the moving plate, and the other ends of the first drag chain and the second drag chain are respectively fixed to the control board.

[0015] Preferably, a bottom plate for supporting the gas cylinder is fixed to the bottom of the frame, and the bottom plate is provided with a circular limiting groove, which is matched with the bottom of the gas cylinder.

[0016] A detection system applying a gas cylinder pressure resistance detection device further includes a detection control system, a robotic arm, a discharging device, and a feeding device. The number of gas cylinder pressure resistance detection devices is at least two. The detection control system is located on one side of the gas cylinder pressure resistance detection device and is connected to the control board of the gas cylinder pressure resistance detection device. The robotic arm is located between multiple gas cylinder pressure resistance detection devices, and the discharging device and the feeding device are correspondingly arranged on the left and right sides of the gas cylinder pressure resistance detection device.

[0017] The utility model has the following beneficial effects:

[0018] (1) Each gas cylinder pressure resistance detection device in this solution works independently and is not related to each other, which is convenient for adjusting the quantity according to the size of the use site and the workload requirements. And when a certain device fails, it can be taken out separately for repair, and the overall detection system will not stop working, without affecting the work of other devices, with high work efficiency and convenient maintenance;

[0019] (2) In this solution, the gas cylinder is first sealed through an insertion tube, then water is injected into the gas cylinder through a water pipe and the insertion tube, and then air is pressed into the gas cylinder through an air pipe and the air holes on the insertion tube. Then, the control board and the detection control system record the process of pressurizing and draining water. By the change of the gas cylinder pressure value, it is judged whether the air tightness of the gas cylinder is qualified and whether the pressure resistance of the gas cylinder is qualified. This detection method does not require manual participation and is automated by the machine, saving time and effort, and the detection result has high accuracy;

[0020] (3) The gas cylinder is positioned through the bottom plate with a circular limiting groove and the clamping device. During the detection process, the gas cylinder will not shake or move in position, effectively ensuring the accuracy of the pressure resistance detection. And the clamping device contacts the gas cylinder through multiple rubber rollers to clamp it, without causing damage to the outer wall of the gas cylinder, effectively protecting the structure of the gas cylinder. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the gas cylinder pressure resistance detection device of the utility model from the first perspective;

[0022] Figure 2 is Figure 1 a partial enlarged view of area A in

[0023] Figure 3 is a schematic structural diagram of the gas cylinder pressure resistance detection device of the utility model from the second perspective;

[0024] Figure 4 is Figure 3 a partial enlarged view of area B in

[0025] Figure 5 is a schematic structural diagram of the control board of the utility model;

[0026] Figure 6 This is a schematic structural diagram of the clamping device in the present utility model;

[0027] Figure 7 This is a schematic structural diagram of the detection system of the gas cylinder pressure resistance detection device applied in the present utility model.

[0028] Among them, 1 - first cylinder, 11 - first piston rod, 2 - frame body, 21 - bottom plate, 211 - circular limit groove, 22 - slide rail, 221 - slider, 3 - first drag chain, 31 - water pipe, 4 - second drag chain, 41 - air pipe, 5 - moving plate, 6 - detection device, 61 - connector, 62 - waterway interface, 63 - communication device, 64 - air path interface, 65 - second cylinder, 7 - insertion tube, 71 - sealing ring, 72 - air hole, 73 - tube body, 74 - tapered opening, 8 - control board, 81 - control element, 9 - clamping device, 91 - third cylinder, 92 - first connecting piece, 93 - second connecting piece, 94 - third connecting piece, 95 - clamping piece, 951 - rubber roller, 100 - detection control system, 200 - robotic arm, 300 - discharging device, 400 - feeding device. Specific embodiments

[0029] Embodiment 1

[0030] As Figures 1-6 shown, a gas cylinder pressure resistance detection device includes a first cylinder 1 and a frame body 2. The first cylinder 1 is fixed to the top of the frame body 2. The frame body 2 is equipped with a clamping device 9 for clamping the gas cylinder. The clamping device 9 is hinged to the frame body 2. A guiding member is fixed to the upper part of the frame body 2. A moving plate 5 is fixed to the guiding member. A detection device 6 is fixed to the moving plate 5. The top of the detection device 6 is fixed to the first piston rod 11 of the first cylinder 1. An insertion tube 7 for inserting into the gas cylinder and sealing the gas cylinder mouth is installed at the bottom of the detection device 6. The detection device 6 is respectively connected with an air pipe 41 and a water pipe 31. The air pipe 41 and the water pipe 31 are connected with a control board 8.

[0031] The pressure resistance detection of the gas cylinder is carried out by injecting water and then pressurizing with air. Then, the detection control system 100 observes the pressure change curve and the pressure value to determine whether it is qualified. The control board 8 controls the intake of air and water of the air pipe 41 and the water pipe 31.

[0032] The first piston rod 11 of the first cylinder 1 moves up and down, thereby driving the moving plate 5 to slide up and down along the slide rail 22, so that the detection device 6 drives the insertion tube 7 to insert into or pull out from the gas cylinder.

[0033] The detection device 6 includes a connector 61, a waterway interface 62, a communication device 63, and a gas path interface 64. The top of the connector 61 is fixed to the first piston rod 11, the bottom of the connector 61 is fixed to the communication device 63, one end of the waterway interface 62 is communicated with the water pipe 31, the other end of the waterway interface 62 is communicated with the communication device 63, one end of the gas path interface 64 is communicated with the gas pipe 41, the other end of the gas path interface 64 is communicated with the communication device 63, and the intubation tube 7 is installed at the bottom of the communication device 63 and is communicated with the communication device 63.

[0034] During detection, water enters the communication device 63 from the water pipe 31, then enters the intubation tube 7, and thus enters the inside of the gas cylinder; gas enters the communication device 63 from the gas pipe 41, then enters the intubation tube 7, and thus enters the inside of the gas cylinder.

[0035] Second cylinders 65 are fixedly arranged corresponding to the front and rear sides of the communication device 63. When the intubation tube 7 is pulled out of the gas cylinder, the second piston rods of the second cylinders 65 extend and abut against the outer wall of the gas cylinder.

[0036] There are two second cylinders 65. When the intubation tube 7 is inserted into the gas cylinder, the second piston rods contract. When the intubation tube 7 is pulled out of the gas cylinder, because the intubation tube 7 has a sealing effect, the intubation tube 7 will lift the gas cylinder. In order to avoid this situation, at this time, the second piston rods extend, and the ends abut against the outer wall of the gas cylinder to limit the gas cylinder from being lifted, so that the intubation tube 7 can be pulled out while the gas cylinder remains stationary.

[0037] The intubation tube 7 includes a sealing ring 71 and a tube body 73. The sealing ring 71 is sleeved on the upper part of the tube body 73. The tube body 73 is provided with air holes 72. The air holes 72 are adjacent to the sealing ring 71 and are located below the sealing ring 71. The bottom of the tube body 73 is provided with a tapered opening 74. Both the air holes 72 and the tapered opening 74 are communicated with the inner cavity of the tube body 73.

[0038] When the intubation tube 7 (i.e., the drainage needle) is inserted into the gas cylinder, the tapered opening 74 (made of nylon material, which can avoid damaging the inner liner of the gas cylinder during insertion) is adjacent to (infinitely close to) the bottom of the gas cylinder, and the sealing ring 71 is stuck at the bottle mouth of the gas cylinder, adopting an inner diameter radial sealing method to avoid damaging the composite material gas cylinder and achieving a sealing effect. When starting the detection, water comes out from the tapered opening 74, water is injected into the gas cylinder, and after reaching a certain amount, air starts to come out from the air holes 72 to pressurize the inside of the gas cylinder, and the water is then pressed back through the tapered opening 74. This process is controlled and realized through the control board 8 and various components connected thereto.

[0039] The clamping device 9 includes a third cylinder 91, a first connecting member 92, a second connecting member 93, a third connecting member 94, and a clamping member 95. The middle of the first connecting member 92 is fixed to the third piston rod 911 of the third cylinder 91. One end of the first connecting member 92 is hinged to one end of the third connecting member 94. The other end of the third connecting member 94 is hinged to one end of the second connecting member 93. The other end of the second connecting member 93 is fixed to the clamping member 95. The upper and lower parts of the second connecting member 93 are respectively hinged to the frame body 2.

[0040] The clamping member 95 is equipped with rubber rollers 951 that can rotate thereon, and the number of rubber rollers 951 is multiple.

[0041] After the gas cylinder is placed in the circular limit groove 211 of the bottom plate 21, the third cylinder 91 works, driving the third piston rod 911 to extend, thereby driving the first connecting member 92 to move outward. By pulling the second connecting member 93 to rotate outward at one end through the third connecting member 94, the clamping member 95 connected to the other end of the second connecting member 93 rotates inward, and finally the two clamping members 95 clamp the gas cylinder.

[0042] The first cylinder 1, the second cylinder 65, and the third cylinder 91 are all connected to the control board 8 by wires or wirelessly, and are controlled by the control program in the control board 8 to work respectively.

[0043] The control board 8 is connected with a control element 81. The control element 81 is communicated with the air pipe 41. The guiding member includes a slide rail 22. A slider 221 is slidably connected to the slide rail 22, and the slider 221 is fixed to the moving plate 5.

[0044] The guiding member can ensure the accuracy and stability of the up and down movement of the intubation tube 7.

[0045] In this embodiment, the guiding member is a combination of the slide rail 22 and the slider 221.

[0046] The control element 81 controls the air inlet or stops the air inlet of the air pipe 41. In addition to the control element 81 on the control board 8, there are also other related control devices, which cooperate to control the work of each structure and perform data processing and storage work.

[0047] A first drag chain 3 is sleeved outside the water pipe 31, and a second drag chain 4 is sleeved outside the air pipe 41. One ends of the first drag chain 3 and the second drag chain 4 are respectively fixed to the moving plate 5, and the other ends of the first drag chain 3 and the second drag chain 4 are respectively fixed to the control board 8.

[0048] Both the first drag chain 3 and the second drag chain 4 play a protective role.

[0049] The bottom of the frame body 2 is fixed with a bottom plate 21 for supporting the gas cylinder. The bottom plate 21 is provided with a circular limit groove 211, and the circular limit groove 211 is matched with the bottom of the gas cylinder.

[0050] The circular limiting groove 211 better places the gas cylinder and ensures its vertical state.

[0051] Embodiment 2

[0052] A detection system applying a gas cylinder pressure resistance detection device further includes a detection control system 100, a robotic arm 200, a discharging device 300, and a feeding device 400. The number of gas cylinder pressure resistance detection devices is two. The detection control system 100 is located on one side of the gas cylinder pressure resistance detection device and is connected to the control board 8 of the gas cylinder pressure resistance detection device. The robotic arm 200 is located between multiple gas cylinder pressure resistance detection devices. The discharging device 300 and the feeding device 400 are correspondingly arranged on the left and right sides of the gas cylinder pressure resistance detection device.

[0053] Both the discharging device 300 and the feeding device 400 convey the gas cylinders by means of a conveyor belt.

[0054] The working principle of this device:

[0055] The robotic arm 200 clamps a gas cylinder from the feeding device 400 and places it in an idle gas cylinder pressure resistance detection device. The gas cylinder is placed on the circular limiting groove 211 of the bottom plate 21. Then, the clamping device 9 clamps the outside of the gas cylinder. The first cylinder 1 starts to work. Under the action of the first piston rod 11, the moving plate 5 drives the detection device 6 and the insertion tube 7 to move downward until the insertion tube 7 is inserted into the specified position in the gas cylinder, and then the first cylinder 1 stops working. Next, water is injected into the gas cylinder through the insertion tube 7, and then the water injection stops and gas is added for pressurization. During the process, the control board 8 feeds the real-time data back to the connected detection control system 100 for data display. After the pressurization is completed, observe the pressure change curve graph displayed on the display screen of the detection control system 100. If the pressure resistance detection is unqualified, a warning message will appear for reminder, and this gas cylinder will be taken out for rework; if the detection is qualified, the clamping device 9 works in the reverse direction to loosen the gas cylinder, the first cylinder 1 works in the reverse direction to pull out the insertion tube 7 from the gas cylinder, and then the robotic arm 200 clamps the gas cylinder and places it on the conveyor belt of the discharging device 300 to enter the next working area.

[0056] Embodiment 3

[0057] The difference between this embodiment and Embodiment 2 is that: as Figure 7 shown, the number of gas cylinder pressure resistance detection devices is six.

[0058] Embodiment 4

[0059] The difference between this embodiment and Embodiment 1 is that the guiding member is a guide rod. An opening for the guide rod to pass through is provided at the top of the frame body 2. The bottom of the guide rod is fixed to the moving plate 5, and a limiting member is provided at the top of the guide rod to prevent the guide rod from slipping out of the opening.

[0060] The guide rod also plays a role in guiding and limiting the moving plate 5, improving the accuracy and stability of the up-and-down movement of the moving plate 5.

[0061] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present invention are covered by the patent scope of the present invention.

Claims

1. A gas cylinder pressure resistance detection device, comprising a first cylinder (1) and a frame (2), wherein the first cylinder (1) is fixed to the top of the frame (2), and characterized in that: The frame (2) is provided with a clamping device (9) for clamping a gas cylinder, the clamping device (9) is hinged to the frame (2), a guide is fixed to the upper part of the frame (2), a movable plate (5) is fixed to the guide, a detection device (6) is fixed to the movable plate (5), the top of the detection device (6) is fixed to the first piston rod (11) of the first cylinder (1), a plug (7) for inserting the gas cylinder and sealing the mouth of the gas cylinder is installed at the bottom of the detection device (6), the detection device (6) is respectively connected to an air pipe (41) and a water pipe (31), and the air pipe (41) and the water pipe (31) are connected to a control panel (8).

2. A gas cylinder pressure resistance detection device according to claim 1, characterized in that: The detection device (6) comprises a connector (61), a water channel interface (62), a connecting device (63) and an air channel interface (64); the top of the connector (61) is fixed to the first piston rod (11); the bottom of the connector (61) is fixed to the connecting device (63); one end of the water channel interface (62) is connected to the water pipe (31); the other end of the water channel interface (62) is connected to the connecting device (63); one end of the air channel interface (64) is connected to the air pipe (41); the other end of the air channel interface (64) is connected to the connecting device (63); and the cannula (7) is installed at the bottom of the connecting device (63) and is connected to the connecting device (63).

3. A gas cylinder pressure resistance detection device according to claim 2, characterized in that: The second cylinder (65) is fixed correspondingly on the front and rear sides of the connecting device (63). When the cannula (7) is pulled out of the gas cylinder, the second piston rod of the second cylinder (65) extends out and abuts against the outer wall of the gas cylinder.

4. A gas cylinder pressure resistance detection device according to claim 1, characterized in that: The cannula (7) comprises a sealing ring (71) and a tube body (73). The sealing ring (71) is sleeved on the upper part of the tube body (73). The tube body (73) is provided with an air hole (72). The air hole (72) is adjacent to the sealing ring (71) and is located below the sealing ring (71). The bottom of the tube body (73) is provided with a tapered opening (74). Both the air hole (72) and the tapered opening (74) are communicated with the inner cavity of the tube body (73).

5. A gas cylinder pressure resistance detection device according to claim 1, characterized in that: The clamping device (9) comprises a third cylinder (91), a first connecting member (92), a second connecting member (93), a third connecting member (94) and a clamping member (95); the middle portion of the first connecting member (92) is fixed to the third piston rod (911) of the third cylinder (91); the end portion of the first connecting member (92) is hinged to one end of the third connecting member (94); the other end of the third connecting member (94) is hinged to one end of the second connecting member (93); the other end of the second connecting member (93) is fixed to the clamping member (95); and the upper and lower portions of the second connecting member (93) are respectively hinged to the frame (2).

6. A gas cylinder pressure resistance detection device according to claim 5, characterized in that: The clamping member (95) is provided with a rubber roller (951) which can rotate thereon, and the number of the rubber rollers (951) is multiple.

7. A gas cylinder pressure resistance detection device according to claim 1, characterized in that: The control plate (8) is connected to a control element (81), the control element (81) is in communication with the air pipe (41), the guide member comprises a slide rail (22), the slide rail (22) is slidably connected to a slider (221), and the slider (221) is fixed to the movable plate (5).

8. A gas cylinder pressure resistance detection device according to claim 1, characterized in that: The water pipe (31) is covered with a first drag chain (3) on the outside, and the air pipe (41) is covered with a second drag chain (4) on the outside. One end of the first drag chain (3) and the second drag chain (4) are respectively fixed to the movable plate (5), and the other end of the first drag chain (3) and the second drag chain (4) are respectively fixed to the control plate (8).

9. A gas cylinder pressure resistance detection device according to claim 1, characterized in that: A bottom plate (21) for supporting the gas cylinder is fixed at the bottom of the frame (2), and the bottom plate (21) is provided with a circular limiting groove (211), which matches the bottom of the gas cylinder.

10. A detection system using the gas cylinder pressure resistance detection device according to any one of claims 1 to 9, characterized in that: The invention also comprises a detection control system (100), a mechanical arm (200), a discharging device (300) and a feeding device (400); the number of the gas cylinder pressure resistance detection devices is at least two; the detection control system (100) is located on one side of the gas cylinder pressure resistance detection device and is connected to a control panel (8) of the gas cylinder pressure resistance detection device; the mechanical arm (200) is located between the plurality of gas cylinder pressure resistance detection devices; and the discharging device (300) and the feeding device (400) are correspondingly arranged on the left and right sides of the gas cylinder pressure resistance detection device.

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