Fire extinguisher sealing detection device

Abstract

The present invention relates to the field of fire extinguisher detection technology, and specifically to a fire extinguisher sealing detection device, including a gantry and a base plate hoisted by the gantry and used to place the fire extinguisher to be detected, the base plate is provided with a positioning fixture for positioning, placing and detecting the fire extinguisher, and the positioning fixture is provided with a display component for visually checking whether the fire extinguisher is qualified. The positioning fixture includes a detection cylinder that can be closed or opened, and one side of the detection cylinder is connected to an L-shaped visual tube, the free end of the L-shaped visual tube opens upward, and the display component is arranged on the L-shaped visual tube, and the display component includes a piston block slidably arranged in the vertical tube of the L-shaped visual tube. The present invention can judge whether the corresponding fire extinguisher is leaking by observing the piston block, which is faster and more intuitive than the traditional way of observing bubbles, and can avoid the phenomenon of missing bubbles when observing with the naked eye. In addition, the detection personnel do not need to observe continuously during the entire detection process, thereby improving the detection efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of fire extinguisher detection, and in particular to a fire extinguisher sealing detection device. Background Art

[0002] Fire extinguisher sealing water inspection is an important part of the fire extinguisher inspection process. It is mainly used to check whether the sealing performance of the fire extinguisher is good to prevent leakage and other problems during use. Fire extinguisher sealing water inspection is usually done by filling a certain pressure of water into the fire extinguisher, then placing it in water and observing it for a period of time to determine whether bubbles emerge.

[0003] At present, during the inspection, multiple fire extinguishers are arranged in the water for static observation. During batch inspection, as the number of fire extinguishers increases, the difficulty of observation and the probability of missed inspection also increase sharply. The mutual occlusion between them not only forms a large number of visual blind spots, but also greatly increases the risk of missed inspection. In addition, continuous observation by staff may be required. Defective products may be ignored due to their hidden locations. Once these potential safety hazards are not discovered in time, they will seriously threaten the subsequent fire safety work.

[0004] In the prior art, a patent document with the announcement number CN215065090U discloses a water inspection device for the air tightness of a fire extinguisher, including a water tank body, a fixed plate is fixedly provided at the middle upper end of the water tank body, a movable block is movably provided at the middle lower end of the water tank body, a first extension plate and a second extension plate are fixedly provided at the top and bottom ends of both sides of the movable block, and a plurality of through grooves distributed at equal intervals are provided through the top of the first extension plate. During the water inspection, multiple fire extinguishers are respectively inserted into the corresponding through grooves and grooves to separate the multiple fire extinguishers, which is convenient for observation and helps to prevent missed inspections. Although the above scheme realizes the separation of fire extinguishers through the design of through grooves and grooves, the detection process still requires continuous observation by staff. There are many fire extinguishers, and there is a greater risk of misjudgment and missed inspections when observed by personnel. Summary of the invention

[0005] The present invention provides a fire extinguisher sealing detection device to solve the technical problems in the prior art that when checking the sealing water of a fire extinguisher, it is easy to make misjudgments and miss detections by manually observing bubbles, and the staff may need to observe continuously, which increases the workload.

[0006] In order to solve the above problems, the present invention provides a fire extinguisher sealing detection device adopts the following technical solution:

[0007] It includes a gantry and a base plate which is hoisted by the gantry and used to place the fire extinguisher to be tested. The base plate is provided with a positioning fixture for positioning, placing and testing the fire extinguisher. The positioning fixture is provided with a display component for visually checking whether the fire extinguisher is qualified.

[0008] The positioning fixture comprises a detection cylinder which can be closed or opened, one side of the detection cylinder is connected with an L-shaped visual tube, the free end of the L-shaped visual tube is opened upward, and the display assembly is arranged on the L-shaped visual tube.

[0009] The display assembly includes a piston block slidably arranged in the vertical tube of the L-shaped visual tube, an upper limit block and a lower limit block for limiting the piston block are arranged in the vertical tube of the L-shaped visual tube, a connecting spring is arranged between the upper limit block and the upper end surface of the piston block, a protrusion is arranged on one side of the vertical tube of the L-shaped visual tube, a cavity connected to the inside of the L-shaped visual tube is formed in the protrusion, a pin block for limiting the rising position of the piston block is slidably penetrated on the side wall of the cavity close to the L-shaped visual tube, one end of the pin block close to the L-shaped visual tube is wedge-shaped and the other end is floatingly connected to the cavity.

[0010] By adopting the above technical solution, it is possible to determine whether the corresponding fire extinguisher is leaking by observing the piston block. Once the fire extinguisher is leaking, the gas enters the L-shaped visual tube to push the piston block up. The inspector can quickly observe this change and quickly determine whether the sealing of the fire extinguisher is qualified. This direct visual feedback is faster and more intuitive than the traditional way of watching bubbles. In addition, it can avoid the phenomenon of missing bubbles when observing with the naked eye when multiple fire extinguishers are inspected at the same time.

[0011] In addition, when the fire extinguisher leaks and pushes the piston block up, the pin block can assist in locking the position of the piston block, which means that once a leak is detected, the position of the piston block will be maintained until the end of the test. In this way, the inspector does not need to continue observing during the entire test process, thereby improving the test efficiency.

[0012] Furthermore, a movable plate is slidably provided in the cavity, and transverse grooves are arranged laterally at intervals on the movable plate. A groove section is formed on the pin block, and the groove section slides through the transverse groove correspondingly. The length of the groove section is greater than the thickness of the movable plate, and a return spring is provided between the end of the pin block away from the L-shaped visual tube and the side wall of the cavity.

[0013] Furthermore, both ends of the movable plate extend out of the cavity and a clamping block is provided on the extended end, and the side surface of the clamping block close to the protrusion is in contact with the protrusion.

[0014] Using the above technical solution, the design of the movable plate allows the operator to move all pin blocks simultaneously by simply pulling the movable plate, thereby releasing the piston block. This centralized operation method simplifies the detection process, reduces the operating steps, and improves the convenience of operation. The quick reset mechanism reduces waiting time and improves detection efficiency.

[0015] Furthermore, the detection cylinder includes an arc-shaped plate fixed on the base plate, arc-shaped cylinder walls are hinged on both sides of the arc-shaped plate, a cover plate is provided at the top end of the arc-shaped cylinder wall, and a linkage component for driving the arc-shaped cylinder wall to rotate is provided at the bottom end of the arc-shaped cylinder wall, and the arc-shaped cylinder wall is driven to rotate by the linkage component to realize the closing or opening of the detection cylinder.

[0016] With the above technical solution, the arc plate is used as the fixed part of the detection cylinder, which is firmly connected to the base plate, providing stable support for the entire detection cylinder. The arc cylinder wall is connected to the arc plate by hinges, so that the arc cylinder wall can be rotated to open or close when needed, while maintaining the compactness of the structure and reducing the occupied space.

[0017] By quickly opening and closing the test tube, the time for replacing the fire extinguisher to be tested or doing other preparation work can be shortened, thereby improving the overall detection efficiency. At the same time, the closed detection environment also helps to reduce the impact of external factors on the detection results.

[0018] Furthermore, the linkage assembly includes a guide sleeve and a driving rod slidably arranged in the guide sleeve, the guide sleeve is arranged at the bottom end of one side close to the arc-shaped cylinder wall and the arc-shaped plate, an arc-shaped groove is arranged in the guide sleeve, and the bottom end of the driving rod is provided with a sliding block that cooperates with the arc-shaped groove.

[0019] Furthermore, an auxiliary plate is provided below the base plate, a telescopic member is connected between the auxiliary plate and the base plate, the driving rod slides through the base plate and the bottom end is fixed to the auxiliary plate;

[0020] The auxiliary plate is provided with guide posts, and the guide posts slide through the base plate accordingly.

[0021] By adopting the above technical solution and the design of the linkage assembly, the automatic rotation and closure of the arc-shaped cylinder wall is realized. When the driving rod moves upward, the slider slides in the arc-shaped groove, thereby driving the arc-shaped cylinder wall to rotate and close. This process does not require manual operation, greatly improving the automation of the detection process, reducing labor intensity, simplifying the operation process, and improving detection efficiency.

[0022] Furthermore, a supporting column for supporting the fire extinguisher is provided on the auxiliary plate, and the supporting column slides through the base plate and can extend into the detection tube.

[0023] By adopting the above technical solution, in the initial state, the upper end surface of the support column is flush with the lower end surface of the base plate, forming a stable groove for placing the fire extinguisher, reducing the possibility of shaking and sliding of the fire extinguisher when placed, thereby improving the stability of placement.

[0024] Furthermore, the interior of the detection cylinder is a plurality of detection cavities arranged vertically, partitions are provided between adjacent detection cavities, and an L-shaped visual tube is provided on one side of the top end of each detection cavity.

[0025] By adopting the above technical solution, the fire extinguisher is divided into three key parts for detection, and L-shaped visual tubes are set for observation respectively, so that the leakage position of the fire extinguisher can be determined more accurately. Once the position of the piston block in a certain L-shaped visual tube changes, the corresponding detection cavity can be quickly located, and then the approximate position of the leakage can be determined, providing an important basis for subsequent maintenance or replacement.

[0026] The beneficial effects of the present invention are as follows: when the present invention is used, whether the corresponding fire extinguisher is leaking can be judged by observing the piston block. Once the fire extinguisher is leaking, the gas enters the L-shaped visual tube to push the piston block up, and the inspector can quickly observe this change, thereby quickly judging whether the sealing of the fire extinguisher is qualified, which is faster and more intuitive than the traditional method of observing bubbles; in addition, the position of the piston block will be maintained after the detection until the detection is completed. In this way, the inspector does not need to continue to observe during the entire detection process, which improves the detection efficiency and reduces the risk of misjudgment and missed detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0028] Figure 1 It is a schematic diagram of the structure of the fire extinguisher sealing detection device of the present invention when it is in overall use;

[0029] Figure 2 This is a structural schematic diagram of the fire extinguisher sealing detection device of the present invention without the hoisting structure;

[0030] Figure 3 for Figure 2 A schematic diagram of the cooperation between the positioning fixture and the display assembly in the present invention;

[0031] Figure 4 for Figure 3 A cross-sectional view of the structure;

[0032] Figure 5 It is a schematic diagram of the detection tube in the present invention in an open state;

[0033] Figure 6 It is a cross-sectional view of the cooperation between the L-shaped visual tube and the display assembly in the present invention;

[0034] Figure 7 for Figure 6 A partial enlarged view of the middle area A;

[0035] Figure 8 It is a structural schematic diagram of the movable plate in the present invention;

[0036] Fig. 9 It is a schematic diagram of the arc-shaped cylinder wall and the linkage assembly below it in the present invention;

[0037] Fig.10 for Fig. 9 A partial enlarged view of the middle area B;

[0038] Fig.11 It is a schematic diagram of the guide sleeve at the bottom end of the arc-shaped cylinder wall of the present invention;

[0039] Fig.12 It is a schematic diagram of the structure of the driving rod in the present invention.

[0040] Description of reference numerals:

[0041] 1. Gantry; 2. Base plate; 21. Auxiliary plate; 211. Guide column; 212. Support column; 22. Telescopic member; 3. Positioning fixture; 31. Detection tube; 311. Arc plate; 312. Arc tube wall; 313. Cover plate; 32. L-shaped visual tube; 321. Upper limit block; 322. Lower limit block; 323. Bump; 324. Cavity; 33. Detection cavity; 34. Partition plate; 35. Linkage assembly; 351. Guide sleeve; 3511. Arc groove; 352. Drive rod; 3521. Slider; 4. Display assembly; 41. Piston block; 42. Connecting spring; 43. Pin block; 431. Groove section; 44. Moving plate; 441. Horizontal groove; 442. Block; 45. Reset spring. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0043] Any number of elements in the drawings is for illustration and not limitation, and any naming is for distinction only and does not have any limiting meaning.

[0044] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0045] Embodiments of the fire extinguisher sealing detection device provided by the present invention:

[0046] like Figures 1 to 12 As shown, it includes a gantry 1 and a base plate 2 which is hoisted by the gantry 1 and used to place the fire extinguisher to be tested, the base plate 2 is provided with a positioning fixture 3 for positioning, placing and testing the fire extinguisher, and the positioning fixture 3 is provided with a display component 4 for visually checking whether the fire extinguisher is qualified.

[0047] Among them, the base plate 2 is specifically hoisted by an electric hoist that can lift or lower it. The cross frame of the gantry 1 is an I-beam, and the electric hoist can move horizontally on it. A bracket is provided on the base plate 2, and the upper end of the bracket is connected to the lifting end of the electric hoist through a wire rope, which facilitates the lifting or lowering of the base plate 2 by the action of the electric hoist.

[0048] The positioning fixture 3 includes a detection tube 31 that can be closed or opened. An L-shaped visual tube 32 is connected to one side of the detection tube 31 . The free end of the L-shaped visual tube 32 opens upward. The display component 4 is arranged on the L-shaped visual tube 32 .

[0049] The upper end of the L-shaped visual tube 32 extends upward out of the top end of the detection tube 31 .

[0050] In this embodiment, the display component 4 includes a piston block 41 slidably arranged in the vertical tube of the L-shaped visual tube 32, and an upper limit block 321 and a lower limit block 322 for limiting the piston block 41 are arranged in the vertical tube of the L-shaped visual tube 32. A connecting spring 42 is arranged between the upper limit block 321 and the upper end surface of the piston block 41, and a protrusion 323 is arranged on one side of the vertical tube of the L-shaped visual tube 32. A cavity 324 connected to the inside of the L-shaped visual tube 32 is formed in the protrusion 323, and a pin block 43 for limiting the rising position of the piston block 41 is slidably penetrated on the side wall of the cavity 324 close to the L-shaped visual tube 32, and one end of the pin block 43 close to the L-shaped visual tube 32 is wedge-shaped and the other end is floatingly connected to the cavity 324.

[0051] During the specific detection process, when the fire extinguisher to be detected leaks, the overflowing gas will enter the L-shaped visual tube 32 and push the piston block 41 to move upward. By observing the upward position of the piston block 41, it can be quickly determined whether the fire extinguisher is sealed properly.

[0052] As the piston block 41 gradually moves upward, the floatingly connected pin block 43 will first be squeezed by the piston block 41 and moved toward the cavity 324. When the piston block 41 moves past the pin block 43, the pin block 43 will be reset below the piston block 41 to prevent the piston block 41 from falling. The setting of the pin block 43 can maintain the upward position of the piston block 41 to prevent the piston block 41 from losing air pressure to reset after the detection is completed.

[0053] This ensures that during the detection process, there is no need for manual observation, and the position of the piston block 41 can be checked after the fire extinguisher is tested.

[0054] In this embodiment, a movable plate 44 is slidably provided in the cavity 324, and a transverse groove 441 is arranged at a transverse interval on the movable plate 44. A groove section 431 is formed on the pin block 43, and the groove section 431 slides through the transverse groove 441 correspondingly. The length of the groove section 431 is greater than the thickness of the movable plate 44, and a return spring 45 is provided between the end of the pin block 43 away from the L-shaped visual tube 32 and the side wall of the cavity 324.

[0055] Both ends of the movable plate 44 extend out of the cavity 324 and a clamping block 442 is provided on the extended end. The side surface of the clamping block 442 close to the protrusion 323 is in contact with the protrusion 323 .

[0056] During specific use, the return spring 45 enables the pin block 43 to be quickly returned to its original position after being squeezed by the piston block 41 .

[0057] When a new batch of fire extinguishers needs to be replaced for inspection, the movable plate 44 is acted on and pulled to the side away from the L-shaped visual tube 32. At this time, the movable plate 44 drives all the pin blocks 43 to move to the side away from the L-shaped visual tube 32, and the piston block 41 moves downward and resets under its own gravity and the auxiliary action of the connecting spring 42, so as to facilitate the inspection of the new batch of fire extinguishers.

[0058] The connecting spring 42 is a light spring, which can avoid excessive compression resistance that affects the upward movement of the piston block 41 on the one hand, and can assist the piston block 41 in returning to its original position and moving downward on the other hand.

[0059] In this embodiment, the detection tube 31 includes an arc-shaped plate 311 fixed on the base plate 2, and arc-shaped tube walls 312 are hinged on both sides of the arc-shaped tube wall 311. A cover plate 313 is provided at the top of the arc-shaped tube wall 312, and a linkage component 35 is provided at the bottom of the arc-shaped tube wall 312 to drive it to rotate. The arc-shaped tube wall 312 is driven to rotate by the linkage component 35 to realize the closing or opening of the detection tube 31.

[0060] The arc plate 311 is a fixed part of the detection tube 31 and is firmly connected to the base plate 2, providing a stable support for the entire detection tube 31. The arc tube wall 312 is connected to the arc plate 311 by a hinge, so that the arc tube wall 312 can be rotated to open or close when needed, while maintaining the compactness of the structure and reducing the occupied space.

[0061] By quickly opening and closing the detection tube 31, the time for replacing the fire extinguisher to be detected or performing other preparations can be shortened, thereby improving the overall detection efficiency. At the same time, the closed detection environment also helps to reduce the impact of external factors on the detection results.

[0062] Among them, the linkage assembly 35 includes a guide sleeve 351 and a driving rod 352 slidably arranged in the guide sleeve 351. The guide sleeve 351 is arranged at the bottom end of one side of the arc-shaped cylinder wall 312 close to the arc-shaped plate 311. An arc-shaped groove 3511 is arranged in the guide sleeve 351, and a sliding block 3521 that cooperates with the arc-shaped groove 3511 is arranged at the top end of the driving rod 352.

[0063] An auxiliary plate 21 is provided below the base plate 2 , a telescopic member 22 is connected between the auxiliary plate 21 and the base plate 2 , and the driving rod 352 slides through the base plate 2 and has its bottom end fixed on the auxiliary plate 21 .

[0064] In this embodiment, the telescopic member 22 is a hydraulic cylinder.

[0065] A guide post 211 is disposed on the auxiliary plate 21 , and the guide post 211 slides through the base plate 2 .

[0066] During specific use, in the initial state, the slider 3521 is at the bottom end of the arc groove 3511. At this time, the two arc-shaped cylinder walls 312 are in an open state, which is convenient for placing the fire extinguisher in the detection cylinder 31. The fire extinguisher is immersed in water, and the driving rod 352 moves upward, driving the slider 3521 to move upward in the arc groove 3511 while driving the arc-shaped cylinder wall 312 to rotate and close.

[0067] A supporting column 212 for supporting the fire extinguisher is provided on the auxiliary plate 21 . The supporting column 212 slides through the base plate 2 and can extend into the detection tube 31 .

[0068] In the initial state, the upper end surface of the support column 212 is flush with the lower end surface of the base plate 2, and a notch is formed at the bottom end to place the fire extinguisher, thereby improving the stability of placement. When the arc-shaped cylinder wall 312 rotates and closes, the support column 212 moves upward, and the upper end surface is flush with the upper end surface of the base plate 2.

[0069] In this embodiment, the interior of the detection tube 31 is three detection chambers 33 arranged vertically, a partition 34 is provided between adjacent detection chambers 33 , and an L-shaped visual tube 32 is provided on one side of the top end of each detection chamber 33 .

[0070] In this embodiment, the movable plate 44 penetrates through the cavities 324 in the protrusions 323 on the three L-shaped viewing tubes 32 , and a clamping block 442 is provided on the movable plate 44 to fit with the side surface of the protrusion 323 .

[0071] When the fire extinguisher is tested for tightness, the upper valve port, the middle cylinder and the bottom connection are mainly checked. By setting three detection chambers 33 and connecting three L-shaped visual tubes 32 respectively, the approximate leakage position can be determined by observing different L-shaped visual tubes 32.

[0072] The specific working principle is that in the initial state, the two arc-shaped cylinder walls 312 are in an open state, the arc extinguisher is placed in the detection cylinder 31, the fire extinguisher to be detected is placed in the water tank and submerged in water, and then the auxiliary plate 21 moves upward through the action of the telescopic part 22, and at the same time drives the driving rod 352 to move upward, drives the slider 3521 to move upward in the arc-shaped groove 3511, and at the same time drives the arc-shaped cylinder wall 312 to rotate and close, and at the same time the support column 212 moves upward.

[0073] If there is a gas leak, the gas in the corresponding detection chamber 33 enters the L-shaped visual tube 32 to push the piston block 41 upward, and the detection personnel can quickly observe this change, thereby quickly judging whether the sealing of the fire extinguisher is qualified.

[0074] When a new batch of fire extinguishers needs to be replaced for testing, the piston block 41 is moved downward and reset by acting on the movable plate 44, so as to facilitate the testing of the new batch of fire extinguishers.

[0075] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and the like, which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0076] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A fire extinguisher sealing detection device, comprising a gantry (1) and a base plate (2) hoisted by the gantry (1) and used to place a fire extinguisher to be detected, characterized in that: The base plate (2) is provided with a positioning fixture (3) for positioning, placing and testing the fire extinguisher, and the positioning fixture (3) is provided with a display component (4) for visually checking whether the fire extinguisher is qualified; The positioning fixture (3) comprises a detection cylinder (31) that can be closed or opened, one side of the detection cylinder (31) is connected to an L-shaped visual tube (32), the free end of the L-shaped visual tube (32) is open upward, and the display assembly (4) is arranged on the L-shaped visual tube (32); The display assembly (4) comprises a piston block (41) slidably arranged in a vertical tube of an L-shaped visual tube (32); an upper limit block (321) and a lower limit block (322) for limiting the position of the piston block (41) are arranged in the vertical tube of the L-shaped visual tube (32); a connecting spring (42) is arranged between the upper limit block (321) and the upper end surface of the piston block (41); a protrusion (323) is arranged on one side of the vertical tube of the L-shaped visual tube (32); a cavity (324) communicating with the inside of the L-shaped visual tube (32) is formed in the protrusion (323); a pin block (43) for limiting the rising position of the piston block (41) is slidably penetrated on a side wall of the cavity (324) close to the L-shaped visual tube (32); one end of the pin block (43) close to the L-shaped visual tube (32) is wedge-shaped and the other end is floatingly connected in the cavity (324).

2. The fire extinguisher sealing detection device according to claim 1, characterized in that: A movable plate (44) is slidably disposed in the cavity (324), and transverse grooves (441) are arranged in a transverse manner at intervals therefrom. A groove section (431) is formed on the pin block (43), and the groove section (431) corresponds to and slides through the transverse groove (441). The length of the groove section (431) is greater than the thickness of the movable plate (44), and a return spring (45) is disposed between an end of the pin block (43) away from the L-shaped visual tube (32) and a side wall of the cavity (324).

3. The fire extinguisher sealing detection device according to claim 2, characterized in that: Both ends of the movable plate (44) extend out of the cavity (324) and a clamping block (442) is provided on the extended end, and the side surface of the clamping block (442) close to the protrusion (323) fits the protrusion (323).

4. The fire extinguisher sealing detection device according to claim 1, characterized in that: The detection cylinder (31) comprises an arc-shaped plate (311) fixedly arranged on a base plate (2); arc-shaped cylinder walls (312) are hingedly arranged on both sides of the arc-shaped plate (311); a cover plate (313) is arranged at the top end of the arc-shaped cylinder wall (312); a linkage assembly (35) for driving the arc-shaped cylinder wall (312) to rotate is arranged at the bottom end of the arc-shaped cylinder wall (312); the arc-shaped cylinder wall (312) is driven to rotate by the linkage assembly (35) to close or open the detection cylinder (31).

5. The fire extinguisher sealing detection device according to claim 4, characterized in that: The linkage assembly (35) comprises a guide sleeve (351) and a driving rod (352) slidably arranged in the guide sleeve (351); the guide sleeve (351) is arranged at the bottom end of one side of the arc-shaped cylinder wall (312) close to the arc-shaped plate (311); an arc-shaped groove (3511) is arranged in the guide sleeve (351); and a sliding block (3521) matched in the arc-shaped groove (3511) is arranged at the top end of the driving rod (352).

6. The fire extinguisher sealing detection device according to claim 5, characterized in that: An auxiliary plate (21) is provided below the base plate (2), a telescopic member (22) is connected between the auxiliary plate (21) and the base plate (2), and the driving rod (352) slides through the base plate (2) and has its bottom end fixed on the auxiliary plate (21); A guide column (211) is provided on the auxiliary plate (21), and the guide column (211) slides through the base plate (2) in correspondence.

7. The fire extinguisher sealing detection device according to claim 6, characterized in that: The auxiliary plate (21) is provided with a supporting column (212) for supporting the fire extinguisher. The supporting column (212) slides through the base plate (2) and can extend into the detection tube (31).

8. The fire extinguisher sealing detection device according to claim 1, characterized in that: The interior of the detection cylinder (31) is a plurality of detection cavities (33) arranged vertically, a partition (34) is provided between adjacent detection cavities (33), and an L-shaped visual tube (32) is provided on one side of the top end of each detection cavity (33).

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