Multi-station gas cylinder airtightness detection device

Abstract

This invention provides a multi-station gas cylinder airtightness testing device, relating to the field of fire extinguisher bottle testing technology. This pressure resistance testing device for fire extinguisher bottles includes a testing water tank and a hoisting frame. The testing water tank is located below one side of the hoisting frame. A feeding inclined frame is located on the side of the hoisting frame away from the testing water tank. A pneumatic top-loading seat is located on the side of the feeding inclined frame closer to the testing water tank. Gas nozzle loading and unloading mechanisms are located on both sides of the testing water tank. The feeding inclined frame, the lifting inclined frame for discharging, and the discharging inclined frame of this invention, through the design of the frame's inclination, allow the cylinder to roll under gravity, assisting in the loading and unloading of the gas nozzles. Simultaneously, the hoisting frame, through an electric sliding base and multiple pneumatic lifting arms, is fixed by electromagnet attraction, allowing for buffering and loading of the fire extinguisher bottles to be tested.

Description

Technical Field

[0001] This invention relates to the field of fire extinguisher bottle testing technology, specifically a multi-station gas cylinder airtightness testing device. Background Technology

[0002] A fire extinguisher is a portable fire-fighting tool consisting of a cylinder, head, nozzle, and other components. It uses a driving pressure to spray out a filled extinguishing agent. Fire extinguishers contain chemicals and are used to extinguish fires. They are common fire-fighting equipment, stored in public places or areas where fires may occur. Different types of fire extinguishers contain different components and are designed for different types of fires. Care must be taken when using them to avoid adverse effects and dangers. Commonly used fire extinguishers include foam, dry powder, acid / alkali, CO2, and 1211 types. Because extinguishing fires requires spraying the contents, the internal filling of the fire extinguisher cylinder is under high pressure; therefore, the cylinder body must be pressure-resistant.

[0003] Because fire extinguisher cylinders must be pressure-resistant, pressure resistance testing is mandatory during production. This testing requires installing a special connecting nozzle at the cylinder opening for pressurization. After testing, the nozzle must be removed. This process is complex, and current pressure resistance testing requires multiple workers to manually load, unload, and pressurize cylinders one by one between various machines. This is not only cumbersome and costly, but also poses a significant risk of cylinder rupture during high-pressure testing, especially when defective cylinders are present. Therefore, a highly efficient and labor-saving high-safety fire extinguisher cylinder pressure resistance testing device is needed. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a multi-station gas cylinder airtightness testing device, which solves the problems of low efficiency and high risk of existing testing equipment.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a multi-station gas cylinder airtightness testing device, comprising a testing water tank and a hoisting frame, wherein the testing water tank is disposed below one side of the hoisting frame, a feeding inclined frame is disposed below the side of the hoisting frame away from the testing water tank, a pneumatic top material seat is disposed below the feeding inclined frame near the testing water tank, air nozzle loading and unloading mechanisms are disposed on both sides of the testing water tank, and a discharge inclined frame is disposed between the testing water tank and the air nozzle loading and unloading mechanism on the side of the testing water tank away from the feeding inclined frame;

[0008] A bottle inflation mechanism is provided at one end of the testing water tank. Multiple gas cylinder placement seats are fixedly connected to the lower part of the testing water tank near the bottle inflation mechanism. Gas cylinder baffles are fixedly connected to the upper part of the multiple gas cylinder placement seats away from the bottle inflation mechanism. A lifting inclined frame is provided inside the testing water tank at a position corresponding to the gas cylinder placement seats. A lifting cylinder is provided on the outside of the side of the testing water tank near the feeding inclined frame. A lifting connecting frame is fixedly connected to the upper output end of the lifting cylinder.

[0009] A telescopic barrier is fixedly connected above the end of the testing water tank away from the bottle inflation mechanism, and a barrier cylinder is fixedly connected above the telescopic barrier.

[0010] An electric slide block is slidably connected above the hoisting frame at a position corresponding to the gas cylinder placement seat. Multiple pneumatic lifting arms are fixedly connected below the electric slide block, and electromagnets are fixedly connected to the bottom output ends of the multiple pneumatic lifting arms.

[0011] Preferably, the nozzle loading and unloading mechanism includes a fixed slide, a bottle mouth baffle, a first slide, a second slide, and a loading and unloading motor. The bottle mouth baffle is fixedly connected to the upper end of the fixed slide near the bottle body inflation mechanism. A bottle mouth groove is formed in the middle of the bottle mouth baffle. The first slide and the second slide are slidably connected to the upper side of the fixed slide on both sides of the bottle mouth baffle, respectively. The loading and unloading motor is fixedly connected to the upper part of the first slide. A screw-locking slot is fixedly connected to the output end of the loading and unloading motor near the bottle mouth baffle. A bottle body positioning seat is fixedly connected to the upper part of the second slide. A bottle body top plate is provided on the side of the bottle body positioning seat away from the bottle mouth baffle. A positioning groove is formed on the upper part of the bottle body positioning seat.

[0012] Preferably, the bottle inflation mechanism includes a bottle pressure plate, a balance cylinder, a bidirectional cylinder, a hollow cylinder rod, and an air nozzle connector. The bottle pressure plate is slidably connected to the detection water tank. A fixed seat is fixedly connected to the upper center of the detection water tank. A balance cylinder is fixedly connected above the fixed seat. The output end of the balance cylinder is fixedly connected to the upper part of the bottle pressure plate. Air nozzle holes are provided at positions corresponding to the multiple gas cylinder placement seats on the bottle pressure plate. Bidirectional cylinders are fixedly connected to the outer side of the detection water tank at positions corresponding to the multiple gas cylinder placement seats. A hollow cylinder rod is provided through the center of each of the multiple bidirectional cylinders. An air nozzle connector is fixedly connected to the end of each of the multiple hollow cylinder rods near the bottle pressure plate. A high-pressure air pipe is fixedly connected to the end of each of the multiple hollow cylinder rods away from the bottle pressure plate.

[0013] Preferably, the cylinder body of the barrier cylinder is connected to the fixed part of the telescopic barrier frame, and the output end of the barrier cylinder is connected to the telescopic part of the telescopic barrier frame.

[0014] Preferably, the loading and unloading motors of the two air nozzle loading and unloading mechanisms rotate in opposite directions, and both the first slide and the second slide are pneumatic slides.

[0015] Preferably, the infeeding inclined frame, the lifting inclined frame, and the discharge inclined frame have the same inclination direction, and each of the gas cylinder placement seats has multiple receiving slots adapted to the lifting inclined frame.

[0016] Preferably, the output end of the pneumatic top material seat is provided with the same tilt angle as the feeding slant frame.

[0017] Preferably, the outer sides of the plurality of air nozzle pressure connectors are fixedly connected to the corresponding air nozzle holes.

[0018] Preferably, a pneumatic top support is also provided at the lower end of the discharge inclined frame away from the detection water tank.

[0019] (III) Beneficial Effects

[0020] This invention provides a multi-station gas cylinder airtightness testing device. It has the following beneficial effects:

[0021] 1. This invention is equipped with a detection water tank, which, together with a telescopic barrier, allows for a direct visual inspection of the fire extinguisher bottle's leakage during inflation testing. Furthermore, in the event of a bottle bursting, the water buffer and barrier effectively mitigate the risk of damage to surrounding personnel and equipment, thus improving the device's practicality.

[0022] 2. The present invention features a feeding inclined frame during feeding and a lifting inclined frame and a discharge inclined frame during discharging. Together with a pneumatic top material seat, the inclined design of the frame allows the bottle to roll under gravity to assist in the loading and unloading of the nozzle assembly and disassembly process. At the same time, the hoisting frame can use an electric slide and multiple pneumatic lifting arms to fix the fire extinguisher bottles to be tested by electromagnet attraction, buffering and loading the bottles. No manual loading and transfer is required, reducing manual intervention and improving work efficiency.

[0023] 3. The bottle inflation mechanism of this invention is equipped with a bidirectional cylinder and a hollow cylinder rod, which, together with the air nozzle crimp connector connected to the bottle pressure plate, allows the bottle pressure plate to be brought close to the gas cylinder baffle by the bidirectional cylinder and the hollow cylinder rod before testing, thus fixing the bottle body and aligning the bottle mouth air nozzle with the air nozzle hole. During testing, the air nozzle crimp connector can be used to seal the air nozzle of the bottle body, and inflation can be performed through a high-pressure air pipe. The structure is simple and practical, and has significant usage effects. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the detection tank of the present invention;

[0026] Figure 3 This is a front view of the overall device of the present invention;

[0027] Figure 4 This is a side view of the overall device of the present invention;

[0028] Figure 5 This is a schematic diagram of the air nozzle loading and unloading mechanism of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the air nozzle crimp connector and the corresponding bottle mouth air nozzle of the present invention.

[0030] The components include: 1. Testing water tank; 2. Feeding inclined frame; 3. Pneumatic top material seat; 4. Air nozzle loading and unloading mechanism; 41. Fixed slide table; 42. Bottle mouth baffle; 43. First slide; 44. Second slide; 45. Loading and unloading motor; 46. Twisting clamp; 47. Bottle body positioning seat; 5. Lifting frame; 6. Electric slide; 7. Pneumatic lifting arm; 8. Electromagnet; 9. Bottle body inflation mechanism; 91. Bottle body pressure plate; 92. Balance cylinder; 93. Two-way cylinder; 94. Hollow cylinder rod; 95. Air nozzle crimp connector; 96. High-pressure air pipe; 97. Fixed seat; 10. Telescopic barrier frame; 11. Barrier cylinder; 12. Gas cylinder placement seat; 13. Gas cylinder baffle; 15. Discharge inclined frame; 16. Lifting inclined frame; 17. Lifting connecting frame; 18. Lifting cylinder. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1:

[0033] like Figure 1-6As shown, this embodiment of the invention provides a multi-station gas cylinder airtightness testing device, including a testing water tank 1 and a hoisting frame 5. The testing water tank 1 is located below one side of the hoisting frame 5. A feeding inclined frame 2 is provided on the side of the hoisting frame 5 away from the testing water tank 1. A pneumatic top support 3 is provided on the side of the feeding inclined frame 2 near the testing water tank 1. The output end of the pneumatic top support 3 has the same inclination angle as the feeding inclined frame 2. Air nozzle loading and unloading mechanisms 4 are provided on both sides of the testing water tank 1. On the side of the water tank 1 away from the feeding inclined frame 2, there is a discharge inclined frame 15 between the testing water tank 1 and the air nozzle loading and unloading mechanism 4. A pneumatic top material seat 3 is also provided at the end of the discharge inclined frame 15 away from the testing water tank 1. Inside the testing water tank 1, at the position corresponding to the gas cylinder placement seat 12, there is a lifting inclined frame 16. The feeding inclined frame 2, the lifting inclined frame 16 and the discharge inclined frame 15 have the same tilt direction. The bottle body can be designed with the inclination of the frame body, and with the pneumatic top material seat 3, the bottle body can roll by gravity to assist in the loading and unloading of the air nozzle disassembly and assembly process.

[0034] The nozzle loading and unloading mechanism 4 includes a fixed slide 41, a bottle mouth baffle 42, a first slide 43, a second slide 44, and a loading and unloading motor 45. The bottle mouth baffle 42 is fixedly connected to the upper end of the fixed slide 41 near the bottle body inflation mechanism 9. A bottle mouth groove is opened in the middle of the bottle mouth baffle 42. The first slide 43 and the second slide 44 are slidably connected to the upper side of the fixed slide 41 on both sides of the bottle mouth baffle 42. The loading and unloading motor 45 is fixedly connected to the upper part of the first slide 43. A screw-locking slot 46 is fixedly connected to the output end of the loading and unloading motor 45 near the bottle mouth baffle 42. A bottle body positioning seat 47 is fixedly connected to the upper part of the second slide 44. A bottle body top plate is provided on the side of the bottle body positioning seat 47 away from the bottle mouth baffle 42. A positioning groove is opened on the upper part of the bottle body positioning seat 47. The loading and unloading motors 45 of the two nozzle loading and unloading mechanisms 4 rotate in opposite directions. The first slide 43 and the second slide 44 are both pneumatic slides.

[0035] A bottle inflation mechanism 9 is provided at one end of the testing water tank 1. The bottle inflation mechanism 9 includes a bottle pressure plate 91, a balance cylinder 92, a two-way cylinder 93, a hollow cylinder rod 94, and an air nozzle pressure connector 95. The bottle pressure plate 91 is slidably connected to the testing water tank 1. A fixed seat 97 is fixedly connected to the upper center of the testing water tank 1. A balance cylinder 92 is fixedly connected above the fixed seat 97. The output end of the balance cylinder 92 is fixedly connected to the upper part of the bottle pressure plate 91. Air nozzle holes are opened at positions corresponding to the multiple gas cylinder placement seats 12 on the bottle pressure plate 91. Two-way cylinders 93 are fixedly connected to the outer side of the testing water tank 1 at positions corresponding to the multiple gas cylinder placement seats 12. Hollow cylinder rods 94 are installed through the center of each cylinder 93. Each hollow cylinder rod 94 is fixedly connected to a nozzle crimping connector 95 at one end near the bottle body pressure plate 91. The outer side of each nozzle crimping connector 95 is fixedly connected to a corresponding nozzle hole. Each hollow cylinder rod 94 is fixedly connected to a high-pressure air pipe 96 at one end away from the bottle body pressure plate 91. Before testing, the bottle body pressure plate 91 can be moved close to the gas cylinder baffle 13 by driving the bidirectional cylinder 93 and the hollow cylinder rods 94, which can fix the bottle body and align the bottle mouth nozzle with the nozzle hole. At the same time, the nozzle crimping connector 5 can be used to seal the connection with the bottle body nozzle, and then the high-pressure air pipe can be used for inflation inspection. The structure is simple and practical.

[0036] Multiple gas cylinder placement seats 12 are fixedly connected to the lower part of the test tank 1 near the end of the cylinder inflation mechanism 9. Gas cylinder baffles 13 are fixedly connected to the upper part of the multiple gas cylinder placement seats 12 away from the cylinder inflation mechanism 9. A lifting cylinder 18 is provided on the outside of the side of the test tank 1 near the feeding inclined frame 2. A lifting connecting frame 17 is fixedly connected to the upper output end of the lifting cylinder 18. Multiple receiving slots adapted to the lifting inclined frame 16 are opened on the multiple gas cylinder placement seats 12.

[0037] A telescopic barrier 10 is fixedly connected to the upper end of the test tank 1 away from the cylinder inflation mechanism 9. A barrier cylinder 11 is fixedly connected to the upper part of the telescopic barrier 10. The cylinder body of the barrier cylinder 11 is connected to the fixed part of the telescopic barrier 10, and the output end of the barrier cylinder 11 is connected to the telescopic part of the telescopic barrier 10. When the test tank 1 and the telescopic barrier 10 are used for inflation testing, not only can the leakage of the fire extinguisher cylinder be visually inspected through the bubbles coming out of the water tank, but also, in the event of cylinder rupture, the water buffer and the barrier can effectively eliminate the risk of loss to surrounding personnel and equipment caused by the cylinder rupture.

[0038] An electric slide block 6 is slidably connected above the hoisting frame 5 at a position corresponding to the gas cylinder placement seat 12. Multiple pneumatic lifting arms 7 are fixedly connected below the electric slide block 6. Electromagnets 8 are fixedly connected to the bottom output ends of the multiple pneumatic lifting arms 7. The hoisting frame 5 can use the electric slide block 6 and the multiple pneumatic lifting arms 7 to fix the gas cylinders to be tested by the attraction of the electromagnets 8, so as to buffer and load the gas cylinders with the gas nozzles installed. There is no need for manual loading and transfer, which reduces the degree of manual intervention.

[0039] Working Principle: In operation, this invention first stacks un-installed nozzle cylinders on the feeding inclined frame 2. The cylinders, due to the frame's inclination design and in conjunction with the pneumatic top-loading frame 3, can roll under gravity, assisting in the loading and unloading of the nozzles. Simultaneously, the hoisting frame 5, via an electric sliding base 6 and multiple pneumatic lifting arms 7, uses electromagnets 8 for attraction and fixation, buffering and loading the nozzle-installed fire extinguisher cylinders to be tested. This eliminates the need for manual loading and transfer, reducing human intervention. During testing, the testing water tank 1, in conjunction with the telescopic barrier 10, allows for air filling testing, as the bubbles rising from the water tank not only test the air filling of the fire extinguisher cylinders but also... The system allows for direct visual inspection of leaks and, in the event of a bottle burst, can effectively mitigate the risk of damage to surrounding personnel and equipment through water cushioning and barrier frames. Furthermore, the bottle inflation mechanism 9 is equipped with a bidirectional cylinder 93 and a hollow cylinder rod 94, which, in conjunction with the nozzle crimp connector 95 connected to the bottle pressure plate 91, allows the bottle pressure plate 91 to be brought close to the gas cylinder baffle 13 before inspection. This secures the bottle and aligns the bottle mouth nozzle with the nozzle hole. Simultaneously, the nozzle crimp connector 5 provides a sealed connection with the bottle's nozzle, enabling inflation checks via a high-pressure air hose. The system is simple and practical.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-station gas cylinder airtightness testing device, comprising a testing water tank (1) and a hoisting frame (5), characterized in that: The testing water tank (1) is located below one side of the hoisting frame (5). A feeding inclined frame (2) is provided on the side of the hoisting frame (5) away from the testing water tank (1). A pneumatic top material seat (3) is provided on the side of the feeding inclined frame (2) close to the testing water tank (1). Air nozzle loading and unloading mechanisms (4) are provided on both sides of the testing water tank (1). A discharge inclined frame (15) is provided between the testing water tank (1) and the air nozzle loading and unloading mechanism (4) on the side of the testing water tank (1) away from the feeding inclined frame (2). One end of the testing water tank (1) is provided with a bottle inflation mechanism (9). The bottle inflation mechanism (9) includes a bottle pressure plate (91), a balance cylinder (92), a two-way cylinder (93), a hollow cylinder rod (94), and an air nozzle pressure connector (95). The bottle pressure plate (91) is slidably connected to the testing water tank (1). A fixed seat (97) is fixedly connected to the upper middle part of the testing water tank (1). A balance cylinder (92) is fixedly connected above the fixed seat (97). The output end of the balance cylinder (92) is fixedly connected to the upper part of the bottle pressure plate (91). Air nozzle holes are provided at the positions corresponding to the cylinder placement seats (12) on the pressure plate (91). A two-way cylinder (93) is fixedly connected to the outer side of the detection water tank (1) at the position corresponding to the cylinder placement seats (12). A hollow cylinder rod (94) is provided through the center of each of the two-way cylinders (93). An air nozzle crimp connector (95) is fixedly connected to the end of each of the hollow cylinder rods (94) near the cylinder pressure plate (91). A high-pressure air pipe (96) is fixedly connected to the end of each of the hollow cylinder rods (94) away from the cylinder pressure plate (91). Multiple gas cylinder placement seats (12) are fixedly connected to the lower part of the inside of the testing water tank (1) near the gas cylinder inflation mechanism (9). Gas cylinder baffles (13) are fixedly connected to the upper part of the multiple gas cylinder placement seats (12) away from the gas cylinder inflation mechanism (9). A lifting inclined frame (16) is provided inside the testing water tank (1) at the position corresponding to the gas cylinder placement seat (12). A lifting cylinder (18) is provided on the outside of the side of the testing water tank (1) near the feeding inclined frame (2). A lifting connecting frame (17) is fixedly connected to the upper output end of the lifting cylinder (18). A telescopic barrier (10) is fixedly connected above the end of the test tank (1) away from the bottle inflation mechanism (9), and a barrier cylinder (11) is fixedly connected above the telescopic barrier (10). An electric slide (6) is slidably connected above the hoisting frame (5) at a position corresponding to the gas cylinder placement seat (12). Multiple pneumatic lifting arms (7) are fixedly connected below the electric slide (6), and electromagnets (8) are fixedly connected to the bottom output ends of the multiple pneumatic lifting arms (7).

2. The multi-station gas cylinder airtightness testing device according to claim 1, characterized in that: The nozzle loading and unloading mechanism (4) includes a fixed slide (41), a bottle mouth baffle (42), a first slide (43), a second slide (44), and a loading and unloading motor (45). The bottle mouth baffle (42) is fixedly connected to the upper end of the fixed slide (41) near the bottle body inflation mechanism (9). A bottle mouth groove is opened in the middle of the bottle mouth baffle (42). The first slide (43) is slidably connected to the upper side of the fixed slide (41) on both sides of the bottle mouth baffle (42). The first slide (43) is fixedly connected to the upper part of the second slide (44), and the loading and unloading motor (45) is fixedly connected to the output end of the loading and unloading motor (45) near the bottle mouth baffle (42). The second slide (44) is fixedly connected to the upper part of the second slide (44), and the bottle body positioning seat (47) is provided with a bottle body top plate on the side away from the bottle mouth baffle (42). A positioning groove is provided on the upper part of the bottle body positioning seat (47).

3. The multi-station gas cylinder airtightness testing device according to claim 1, characterized in that: The cylinder body of the barrier cylinder (11) is connected to the fixed part of the telescopic barrier frame (10), and the output end of the barrier cylinder (11) is connected to the telescopic part of the telescopic barrier frame (10).

4. The multi-station gas cylinder airtightness testing device according to claim 2, characterized in that: The loading and unloading motors (45) of the two air nozzle loading and unloading mechanisms (4) rotate in opposite directions, and the first slide (43) and the second slide (44) are both pneumatic slides.

5. The multi-station gas cylinder airtightness testing device according to claim 1, characterized in that: The feeding inclined frame (2), lifting inclined frame (16) and discharging inclined frame (15) have the same inclination direction, and multiple gas cylinder placement seats (12) are provided with multiple receiving slots adapted to the lifting inclined frame (16).

6. The multi-station gas cylinder airtightness testing device according to claim 1, characterized in that: The output end of the pneumatic top material seat (3) is provided with the same tilt angle as the feeding inclined frame (2).

7. The multi-station gas cylinder airtightness testing device according to claim 1, characterized in that, The outer sides of each of the multiple air nozzle crimp connectors (95) are fixedly connected to the corresponding air nozzle holes.

8. The multi-station gas cylinder airtightness testing device according to claim 1, characterized in that, A pneumatic top material seat (3) is also provided at the end of the discharge inclined frame (15) away from the detection water tank (1).

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