A clamping device of a sealing detection machine for fire extinguishers

Abstract

The utility model relates to container tightness detection technology, especially a kind of sealing detection machine's clamping device for fire extinguisher, including hinged on the main shaft of tightness detection machine and several clamping structures installed on main shaft, main shaft can be driven structure control rotation and make clamping structure keep horizontal pose or vertical pose;Wherein, each clamping structure can fix fire extinguisher bottle, and when vertical pose, fire extinguisher bottle is sent into reservoir;The utility model can be disposable to multiple fire extinguisher bottle clamping and sent into tightness detection machine and carry out tightness detection, can solve the problem of low detection efficiency now.

Description

Technical Field

[0001] This utility model relates to container sealing testing technology, and in particular to a clamping device for a sealing testing machine for fire extinguishers. Background Technology

[0002] Fire extinguishers are one of the most effective facilities for extinguishing initial fires and are common fire-fighting equipment. Currently, before filling fire extinguishers (that is, the process of filling the fire extinguishing agent into the fire extinguisher bottle), it is necessary to test the fire extinguisher for its seal. The water immersion and bubble method is one of the commonly used and effective methods.

[0003] The so-called immersion bubble method refers to placing the fire extinguisher bottle in water, then using an air compressor or other air-filling equipment to inflate the fire extinguisher and observing whether bubbles are generated in the water, thereby determining whether the fire extinguisher bottle is properly sealed.

[0004] Currently, many sealing testing machines are capable of using the water immersion bubble method. However, existing sealing testing machines can only test one fire extinguisher bottle at a time, which is inefficient. Therefore, improvements to existing sealing testing machines are needed. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a fire extinguisher sealing tester, which aims to solve the problems mentioned in the background technology.

[0006] The technical solution of this utility model is achieved as follows: a fire extinguisher sealing tester, comprising:

[0007] The testing pool has a water storage chamber;

[0008] A clamping device is installed on a detection pool and used to fix fire extinguisher bottles. The clamping device includes a main shaft hinged to the detection pool and several clamping structures installed on the main shaft. The main shaft can be controlled to rotate by a drive structure and cause the clamping structures to maintain a horizontal or vertical position.

[0009] Each clamping structure can secure the fire extinguisher bottle and deliver it into the water storage tank when in a vertical position.

[0010] By adopting the above technical solution:

[0011] The clamping device of this utility model consists of a main shaft and multiple clamping structures fixed on the main shaft. Each clamping structure can fix a fire extinguisher bottle. Therefore, during the testing process, multiple fire extinguisher bottles can be fixed to each clamping structure at one time, and then the clamping structure sends the fire extinguisher bottle into the water storage chamber for inflation testing.

[0012] Preferably, each clamping structure includes:

[0013] The base is fixedly connected to the main shaft;

[0014] A movable seat is slidably connected to the base;

[0015] The support part is fixed to the movable base;

[0016] The nozzle mounting part is slidably connected to the movable seat, and forms a clamping area for clamping the fire extinguisher bottle between it and the support part;

[0017] The nozzle mounting part is equipped with a nozzle that can be supplied with air by an air source, and a clamping bolt is threadedly connected to the movable seat. One end of the clamping bolt abuts against the nozzle mounting part.

[0018] Preferably, a limiting block is fixedly connected to the support portion.

[0019] Preferably, the base is provided with a lead screw structure, wherein the lead screw structure includes:

[0020] The lead screw is rotatably connected to the base and can be controlled by a motor to rotate clockwise or counterclockwise.

[0021] The lead screw bearing housing mates with the lead screw and is fixed to the movable seat;

[0022] The limiting rod is fixed to the base and is set parallel to the lead screw;

[0023] The limit slider is slidably connected to the limit rod and fixedly connected to the movable seat.

[0024] Preferably, the drive structure includes a driven gear mounted on the main shaft and a rack slidably connected to the detection pool, wherein the rack can be controlled to reciprocate by a linear actuator.

[0025] By adopting the above technical solution:

[0026] The movement control of the clamping structure of this utility model adopts a lead screw, which can control the fire extinguisher bottle to enter the pool stably and slowly, avoiding splashing water.

[0027] When the rack of this invention moves, it controls the rotation of the main shaft through the driven gear, which keeps the clamping structure of this invention in a horizontal or vertical position. In the horizontal position, the worker can install the fire extinguisher bottle on the clamping structure and remove the fire extinguisher bottle from the clamping structure. In the vertical position, the fire extinguisher bottle on the moving seat can be controlled by the screw structure to enter water for sealing test.

[0028] Preferably, the clamping device has two main shafts rotatably connected to the detection pool, and each main shaft is equipped with several clamping structures;

[0029] The drive structure can control the synchronous rotation of each spindle and cause the clamping structures on each spindle to maintain different positions.

[0030] Preferably, the drive structure includes driven gears mounted on each main shaft and racks slidably connected to the detection pool. The racks can be controlled by a linear drive to move reciprocally and mesh with each driven gear.

[0031] By adopting the above technical solution:

[0032] The clamping device of this utility model is configured with two sets of clamping structures, each of which is controlled by a drive structure. During control, one set of clamping structures can be kept in a horizontal position for loading and unloading, while the other set of clamping structures is kept in a vertical position for sealing testing. Therefore, this utility model can load and unload the other set of clamping structures while sealing testing is in progress, thus alternating between the two sets and further improving the efficiency of sealing testing. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of a specific embodiment 1 of the present utility model;

[0035] Figure 2 This is a schematic diagram of the clamping structure in specific embodiment 1 of this utility model;

[0036] Figure 3 for Figure 2 AA section view in the middle;

[0037] Figure 4 for Figure 2 A cross-sectional view of BB and a schematic diagram of its connection with the gas source;

[0038] Figure 5 for Figure 4 Enlarged view of part A in the image;

[0039] Figure 6 for Figure 5 CC section view in the middle;

[0040] Figure 7 This is a structural schematic diagram of a specific embodiment 2 of the present utility model. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] Example 1:

[0043] like Figures 1-6 As shown, this embodiment discloses a fire extinguisher sealing tester, comprising:

[0044] The detection pool 10 has a water storage chamber 100, which can be filled with water, and the outer wall of the detection pool 100 near the bottom is provided with a drain valve 101, which is normally closed and is used to open when draining.

[0045] A clamping device is installed on the detection pool 10 and is used to fix the fire extinguisher bottle. The clamping device in this embodiment includes a main shaft 20 hinged to the detection pool 10 and several clamping structures installed on the main shaft 20. The main shaft 20 can be controlled to rotate by the drive structure and cause the clamping structures to maintain a horizontal or vertical position.

[0046] Each clamping structure can secure the fire extinguisher bottle and deliver it into the water storage tank when in a vertical position.

[0047] In this embodiment, the detection pool 10 has support plates 21 fixedly connected to both sides of the pool opening, and the main shaft 20 is rotatably connected to the support plates 21. The driving structure of this embodiment is a driven gear 22 installed at one end of the main shaft 20 and a rack 23 slidably connected to the detection pool 10. The rack 23 can be controlled to reciprocate by a linear actuator 60a, which is a hydraulic cylinder. A rack slide rail 23a is fixedly connected to the detection pool 10, and the rack is slidably connected to the rack slide rail 23a. A driving block 23b connected to the output end of the hydraulic cylinder is fixedly connected to the rack. When the hydraulic cylinder controls the rack to reciprocate, the driven gear meshing with the rack rotates clockwise or counterclockwise, thereby causing the main shaft to rotate, and then causing the clamping structure to switch positions.

[0048] Each clamping structure in this embodiment includes:

[0049] The base 30 is fixedly connected to the main shaft 20;

[0050] The movable seat 31 is slidably connected to the base 30;

[0051] The support part 32 is fixed to the movable base 31;

[0052] The nozzle mounting part 33 is slidably connected to the movable seat 31, and forms a clamping area for clamping the fire extinguisher bottle between it and the support part 32;

[0053] The nozzle mounting part 33 is equipped with a nozzle 33a that can be supplied with air by an air source, and a clamping bolt 34 is threadedly connected to the movable seat 31. One end of the clamping bolt 34 abuts against the nozzle mounting part 33.

[0054] In this embodiment, the movable base 31 is provided with a sliding groove 31a for the air nozzle mounting part 33 to slide, and slide rails 31b are fixedly connected to the inner walls on both sides of the sliding groove 31a. The air nozzle mounting part 33 is slidably connected to the slide rails 31b.

[0055] In this embodiment, the nozzle mounting part 33 is provided with a groove 33c on the side facing the support part 32. The groove 33c is adapted to the diameter of the mouth of the fire extinguisher bottle, and a sealing ring is provided on the groove wall of the groove 33c.

[0056] In this embodiment, an air compressor 40 is selected as the air source. The output end of the air compressor 40 is connected to the air nozzle 33a through an air pipe 41. A one-way valve 42 and a first control valve 43 are installed on the air pipe 41. A vent pipe 44 is also connected to the air pipe 41, and a second control valve 45 is installed on the vent pipe 44.

[0057] In this embodiment: a limiting block 32a and a support head 32b are fixedly connected to the support portion 32.

[0058] In this embodiment: a driving cavity 50 is provided between the base 30 and the movable seat, and a lead screw structure is provided within the driving cavity 50, wherein the lead screw structure includes:

[0059] The lead screw 51 is rotatably connected to the base 30 and can be controlled by the motor 52 to rotate clockwise or counterclockwise.

[0060] The lead screw bearing housing 53 is fitted with the lead screw 51 and fixed on the movable seat 31;

[0061] The limiting rod 54 is fixed on the base 30 and is arranged parallel to the lead screw 51;

[0062] The limiting slider 55 is slidably connected to the limiting rod 54 and fixedly connected to the movable seat 31.

[0063] In this embodiment, the lead screw bearing seat 53 and the limiting slider 55 are fixedly connected to the bottom of the moving seat 31.

[0064] In this embodiment, a control cabinet 60 is provided on one side of the detection pool 10. The control cabinet 60 is used to control the hydraulic cylinder, motor, first control valve, second control valve and air compressor of this embodiment.

[0065] The principle of this embodiment is that the rack slides under the control of the hydraulic cylinder, so that the clamping structure is kept in a horizontal position (horizontal posture), which is convenient for workers to load materials. When loading materials, the worker aligns the bottom of the fire extinguisher bottle with the support head, and places the outer wall of the fire extinguisher bottle near the bottom on the limiting block. Then, the worker adjusts the fire extinguisher bottle mouth to align with the groove of the nozzle mounting part, moves the nozzle mounting part, and moves the fire extinguisher bottle mouth into the groove. Then, the worker tightens the clamping bolt to press the nozzle mounting part, thereby clamping the fire extinguisher bottle through the nozzle mounting part and the support part.

[0066] Subsequently, the hydraulic cylinder is restarted, keeping the clamping structure perpendicular to the bottom of the testing pool (i.e., in a vertical position). Then, the motor uses a screw mechanism to control the moving seat to descend and send the fire extinguisher into the testing pool. Next, the air compressor is started and the first control valve is open while the second control valve is closed to inflate the fire extinguisher for testing. After the test is completed, the second control valve is opened to release the air. Finally, the motor uses a screw mechanism to control the moving seat to rise, and under the control of the hydraulic cylinder, the clamping structure switches to a horizontal position, and then the tested fire extinguisher is removed.

[0067] In this embodiment, the number of clamping structures is not limited, but 3-5 is optimal based on actual production. This is because when bubbles appear in the same batch of fire extinguishers during testing, each fire extinguisher in the batch needs to be checked individually. If too many fire extinguishers in the same batch are tested, it will increase the workload of the investigation.

[0068] Example 2:

[0069] like Figure 7 As shown, in this embodiment, the clamping device has two main shafts 20 rotatably connected to the detection pool 10, and each main shaft 20 is equipped with three clamping structures, with the two main shafts 20 spaced apart from each other.

[0070] The drive structure can control the synchronous rotation of each spindle 20 and cause the clamping structure on each spindle 20 to maintain different poses. When the clamping structure on one spindle maintains a horizontal pose, the clamping structure on the other spindle maintains a vertical pose.

[0071] In this embodiment, the drive structure includes driven gears 22 mounted on each spindle 20 and racks 23 slidably connected to the detection pool 10. The racks 23 can be controlled by a linear actuator (hydraulic cylinder) to reciprocate and mesh with the two driven gears 22 simultaneously. In this embodiment, the detection pool is provided with rack rails 23a for the racks 23 to slide.

[0072] In this embodiment, the clamping structure is the same as in Embodiment 1.

[0073] refer to Figure 7This embodiment is another variation of embodiment 1. The same rack can simultaneously control the rotation of each driven gear and different spindles. Its advantage is that when one clamping structure is in a horizontal position, it can be used for loading and unloading, while the other clamping structure is in a vertical position. At this time, the fire extinguisher can be sent into the testing pool for sealing testing. After the horizontal clamping structure finishes loading, the sealing test of the vertical clamping structure is also completed. Then, the fire extinguisher on the vertical clamping structure rises and floats to the surface. The rack is then moved by the hydraulic cylinder, causing the clamping structure that was originally in a horizontal position to switch to a vertical position, and vice versa. This allows the tested fire extinguisher to be removed and a new batch of fire extinguishers to be tested to be installed. Meanwhile, the vertical clamping structure on the other side can send the fire extinguisher into the testing pool for testing during the loading and unloading process.

[0074] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A clamping device for a fire extinguisher sealing tester, characterized in that: It includes a spindle (20) hinged to a sealing tester and several clamping structures mounted on the spindle (20). The spindle (20) can be controlled to rotate by a drive structure and cause the clamping structures to maintain a horizontal or vertical position. Each clamping structure can secure the fire extinguisher bottle and deliver it into the water storage tank when in a vertical position.

2. The clamping device for a fire extinguisher sealing tester according to claim 1, characterized in that: Each clamping structure includes: The base (30) is fixedly connected to the main shaft (20); The movable seat (31) is slidably connected to the base (30); The support (32) is fixed to the movable seat (31); The nozzle mounting part (33) is slidably connected to the movable seat (31) and forms a clamping area for clamping the fire extinguisher bottle between it and the support part (32); Among them, the air nozzle mounting part (33) is equipped with an air nozzle (33a) that can be supplied with air by an air source, and a clamping bolt (34) is threadedly connected to the moving seat (31), with one end of the clamping bolt (34) abutting against the air nozzle mounting part (33).

3. The clamping device for a fire extinguisher sealing tester according to claim 2, characterized in that: A limiting block (32a) is fixedly connected to the support part (32).

4. The clamping device for a fire extinguisher sealing tester according to claim 2 or 3, characterized in that: The base (30) is provided with a lead screw structure, wherein the lead screw structure includes: The lead screw (51) is rotatably connected to the base (30) and can be controlled by the motor (52) to rotate clockwise or counterclockwise. The lead screw bearing housing (53) is fitted with the lead screw (51) and fixed on the movable seat (31); The limiting rod (54) is fixed on the base (30) and is set parallel to the lead screw (51); The limiting slider (55) is slidably connected to the limiting rod (54) and fixedly connected to the moving seat (31).

5. The clamping device for a fire extinguisher sealing tester according to any one of claims 1-3, characterized in that: The drive structure includes a driven gear (22) mounted on the main shaft (20) and a rack (23) slidably connected to the sealing tester. The rack (23) can be controlled by a linear actuator (60a) to reciprocate and mesh with the driven gear (22).

6. The clamping device for a fire extinguisher sealing tester according to any one of claims 1-3, characterized in that: The clamping device has two spindles (20) rotatably connected to the sealing tester, and each spindle (20) is equipped with several clamping structures; The drive structure can control the synchronous rotation of each spindle (20) and cause the clamping structure on each spindle (20) to maintain different positions.

7. The clamping device for a fire extinguisher sealing tester according to claim 6, characterized in that: The drive structure includes driven gears (22) mounted on each spindle (20) and racks (23) slidably connected to the sealing tester. The racks (23) can be controlled by a linear actuator (60a) to reciprocate and mesh with each driven gear (22).

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