Explosion-proof membrane pressure test device

Abstract

The utility model discloses an explosion-proof membrane pressure testing device which comprises a testing box, a processing space is arranged in the testing box, a pressurizing cavity is arranged in the middle of the lower portion of the processing space, a table edge is arranged on the pressurizing cavity in a wrapping mode, a pressure sensor is arranged in the pressurizing cavity, and a pressure sensor is arranged on the table edge. A plurality of guide grooves are formed in the positions, located on the left side and the right side of the testing box, below the processing space, a gland part capable of stretching out and drawing back left and right is arranged above the testing box, moving bases are inserted into the guide grooves formed in the left side and the right side, clamping parts are arranged on the moving bases, and a pressurizing part is arranged in the pressurizing cavity; a first moving mechanism capable of driving the gland part to move downwards is arranged above the processing space, a driving mechanism capable of driving the gland part to operate is arranged on the gland part, and compared with the prior art, screws do not need to be used for fixing, so that the explosion-proof membrane is uniform in stress, and the explosion-proof membrane testing device can adapt to explosion-proof membranes of different sizes for testing.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof membrane pressure testing, in particular to an explosion-proof membrane pressure testing device. Background Art

[0002] As the name suggests, explosion-proof membrane is a metal film that prevents explosions. It is usually installed inside the container. When the pressure value in the container increases to a certain limit, the pressure generated will first break the explosion-proof membrane without damaging the container. It is highly practical. Generally, the quality of the explosion-proof membrane is tested by a pressure test to determine the amount of pressure it can withstand.

[0003] When using a general explosion-proof membrane pressure test device, a fixed flange is used to fix the explosion-proof membrane in the center, and then an airflow impact test is performed on the bottom or top of the explosion-proof membrane until the explosion-proof membrane ruptures. The internal air pressure value is recorded, and the pressure tolerance range of the explosion-proof membrane can be obtained at this time.

[0004] As can be seen from the above, a general explosion-proof membrane pressure test device will use a fixed flange to fix the explosion-proof membrane in the center when in use. However, in this process, since the flange is fixed by multiple screws, if the tightness of the screws is different during manual installation and fixing, it will cause uneven force on the explosion-proof membrane, which will lead to damage. In addition, the fixing process is relatively cumbersome and not very practical. Utility Model Content

[0005] The purpose of this utility model is to provide an explosion-proof membrane pressure test device that can solve at least one of the above technical problems. The technical solution of this utility model is as follows:

[0006] A explosion-proof membrane pressure testing device comprises: a test box, a processing space is provided in the test box, a boosting cavity is provided in the middle below the processing space, a table edge is wrapped around the boosting cavity, a pressure sensor is provided in the boosting cavity, a plurality of guide grooves are provided on the left and right sides of the test box below the processing space, a pressure cover part which can be extended and retracted left and right is provided above the test box, a movable seat is inserted into each of the guide grooves provided on the left and right, a clamping part is provided on the movable seat, a boosting part is provided in the boosting cavity, a first moving mechanism which can drive the pressure cover part to move downward is provided above the processing space, a driving mechanism which can drive the pressure cover part to operate is provided on the pressure cover part, a clamping mechanism which can drive the clamping part to drive is provided below the movable seat, and a second moving mechanism which can drive the movable seat to move is provided below the test box.

[0007] Furthermore, the gland portion includes a plug rod movably plugged longitudinally above the test box, a middle gland is fixed at the lower end of the plug rod, and side glands are movably plugged on the left and right sides of the middle gland.

[0008] Furthermore, the clamping portion includes a moving rod movably plugged into a side of the moving seat close to the boost chamber, and a clamping plate and a baffle are respectively fixed to the upper and lower ends of each moving rod.

[0009] Furthermore, the boosting part includes a plurality of groups of boosting nozzles arranged in the boosting cavity, and an air supply pipe is provided below each group of the boosting nozzles.

[0010] Furthermore, the first moving mechanism includes a first motor fixed above the test box, a first screw is fixed at the output end of the first motor, a first threaded sleeve is fixed above the plug-in rod, and the first screw and the first threaded sleeve are threadedly matched.

[0011] Furthermore, the driving mechanism includes a second motor fixed above the middle pressure cover, a first spur gear is fixed at the output end of the second motor, a second screw is movably sleeved on the connecting rod, a second spur gear is fixed at the lower end of the second screw, the second spur gear and the first spur gear are meshed, a second threaded sleeve is threadedly fitted on the second screw, and a connecting rod is movably hinged between the second threaded sleeve and each of the side pressure covers.

[0012] Furthermore, the clamping mechanism includes a third motor fixed under each of the movable seats, a third screw is fixed at the output end of the third motor, a slider is horizontally inserted under each of the movable seats, a third threaded sleeve that can cooperate with the third screw thread is fixed at the end of each slider, and a connecting rod is movably hinged between each slider and the adjacent baffle.

[0013] Furthermore, the second moving mechanism includes a fourth motor fixed under each test box, a third spur gear is fixed to the output end of the fourth motor, a rack is fixed to the rear side of each moving seat, and each rack is meshed with the third spur gear.

[0014] In summary, the present invention has the following beneficial effects compared to the prior art:

[0015] The utility model provides an explosion-proof membrane pressure testing device, which, when in use, the user drives the movable seat to move through the second movable mechanism, so that the clamping part moves to a suitable position, and then the user places the explosion-proof membrane on the movable seat, and drives the clamping part through the clamping mechanism, so that the clamping part clamps the explosion-proof membrane on the movable seat, and at the same time drives the pressure cover part to operate through the driving mechanism, so that the pressure cover part adapts to the size of the explosion-proof membrane, and then drives the pressure cover part through the first movable mechanism to press the explosion-proof membrane onto the edge of the table, and at the same time, the pressure in the pressure-boosting cavity is boosted through the pressure-boosting part, so that the pressure in the pressure-boosting cavity increases until the explosion-proof membrane is broken, and finally the pressure is detected by the pressure sensor. Compared with the existing technology, there is no need to use screws for fixing, so that the explosion-proof membrane is evenly stressed, and can adapt to explosion-proof membranes of different sizes for testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the present utility model.

[0017] Figure 2 It is a half-section schematic diagram of the present utility model.

[0018] Figure 3 This is one of the exploded schematic diagrams of the present invention.

[0019] Figure 4 This is the second exploded diagram of the present invention.

[0020] Explanation of the accompanying symbols: 1. test box; 2. processing space; 3. pressurization chamber; 4. gland portion; 5. moving seat; 6. clamping portion; 7. pressurization portion; 8. table edge; 9. pressure sensor; 10. guide groove; 100. first moving mechanism; 200. driving mechanism; 300. clamping mechanism; 400. second moving mechanism; 41. plug-in rod; 42. middle gland; 43. side gland; 61. moving rod; 62. splint; 63. baffle; 71. pressurization nozzle ; 72. Gas pipe; 101. First motor; 102. First screw; 103. First threaded sleeve; 201. Second motor; 202. First spur gear; 203. Second screw; 204. Second spur gear; 205. Second threaded sleeve; 206. Connecting rod; 301. Third motor; 302. Third screw; 303. Third threaded sleeve; 304. Connecting rod; 305. Slider; 401. Fourth motor; 402. Third spur gear; 403. Rack. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0022] like Figures 1 to 4The explosion-proof membrane pressure testing device shown is characterized in that it includes: a test box 1, a processing space 2 is provided in the test box 1, a boosting chamber 3 is provided in the middle below the processing space 2, a platform edge 8 is wrapped on the boosting chamber 3, a pressure sensor 9 is provided in the boosting chamber 3, a plurality of guide grooves 10 are provided on the left and right sides of the test box 1 below the processing space 2, a gland part 4 that can be telescopically extended left and right is provided above the test box 1, a moving seat 5 is inserted on each of the left and right guide grooves 10, a clamping part 6 is provided on the moving seat 5, a boosting part 7 is provided in the boosting chamber 3, a first moving mechanism 100 that can drive the gland part 4 to move downward is provided above the processing space 2, a driving mechanism 200 that can drive the gland part 4 to operate is provided on the gland part 4, a clamping mechanism 300 that can drive the clamping part 6 to move is provided below the movable seat 5, and a second moving mechanism 400 that can drive the movable seat 5 to move is provided below the test box 1.

[0023] The above structure is an explosion-proof membrane pressure testing device, which, when in use, the user drives the movable seat 5 to move through the second movable mechanism 400, so that the clamping part 6 moves to the appropriate position, and then the user places the explosion-proof membrane on the movable seat 5, and drives the clamping part through the clamping mechanism 300, and the clamping part 6 clamps the explosion-proof membrane on the movable seat 5, and at the same time drives the pressure cover part 4 to operate through the driving mechanism 200, so that the pressure cover part 4 adapts to the size of the explosion-proof membrane, and then drives the pressure cover part 4 through the first movable mechanism 100 to press the explosion-proof membrane onto the table edge 8, and at the same time, the boosting cavity 3 is pressurized through the boosting part 7, so that the pressure in the boosting cavity 3 increases until the explosion-proof membrane is broken, and finally the pressure is detected by the pressure sensor 9. Compared with the existing technology, there is no need to use screws for fixing, so that the explosion-proof membrane is evenly stressed, and can adapt to explosion-proof membranes of different sizes for testing.

[0024] like Figure 2 As shown, in some embodiments of the present invention, the pressure cover portion 4 includes a plug-in rod 41 that is longitudinally movably plugged into the top of the test box 1, a middle pressure cover 42 is fixed at the lower end of the plug-in rod 41, and side pressure covers 43 are movably plugged into the left and right sides of the middle pressure cover 42. When the driving mechanism 200 is driven, each side pressure cover 43 is driven to move along the middle pressure cover 42, so that the side pressure covers 43 are scaled to a suitable position.

[0025] like Figure 3As shown, in some embodiments of the present invention, the clamping portion 6 includes a moving rod 61 movably plugged into the moving seat 5 on the side close to the boost chamber 3, and a splint 62 and a baffle 63 are respectively fixed at the upper and lower ends of each moving rod 61. The baffle 63 is driven downward by the clamping mechanism 300, so that the baffle 63 drives the moving rod 61 to move downward, and at the same time, the moving rod 61 drives the splint 62 to move, so that the splint 62 clamps the explosion-proof membrane.

[0026] like Figure 3 As shown, in some embodiments of the present invention, the boosting part 7 includes a plurality of groups of boosting nozzles 71 arranged in the boosting cavity 3, and an air supply pipe 72 is provided below each group of the boosting nozzles 71. The air supply pipe 72 is connected to an external boosting device through the air supply pipe 72, so that the air supply pipe 72 delivers gas to each boosting nozzle 71, thereby increasing the pressure in the boosting cavity 3.

[0027] like Figure 3 As shown, in some embodiments of the present invention, in order to achieve the effect of driving the pressure cover part 4 to move downward, the first moving mechanism 100 includes a first motor 101 fixed above the test box 1, a first screw 102 is fixed at the output end of the first motor 101, and a first threaded sleeve 103 is fixed above the plug-in rod 41, and the first screw 102 and the first threaded sleeve 103 are threadedly matched.

[0028] When the explosion-proof membrane pressure test device using the above structure is in operation, the first motor 101 drives the first screw 102 to rotate, so that the first screw 102 drives the first threaded sleeve 103 to move upward, and the first threaded sleeve 103 drives the connecting rod 41 to move upward.

[0029] like Figure 3 As shown, in some embodiments of the present invention, in order to achieve the effect of driving the pressure cover part 4 to operate, the driving mechanism 200 includes a second motor 201 fixed above the middle pressure cover 42, and a first spur gear 202 is fixed at the output end of the second motor 201. A second screw rod 203 is movably sleeved on the connecting rod 41, and a second spur gear 204 is fixed at the lower end of the second screw rod 203. The second spur gear 204 and the first spur gear 202 are meshed, and a second threaded sleeve 205 is threadedly provided on the second screw rod 203. A connecting rod 206 is movably hinged between the second threaded sleeve 205 and each of the side pressure covers 43.

[0030] When an explosion-proof membrane pressure testing device using the above structure is in operation, the first spur gear 202 is driven to rotate by the second motor 201, so that the first spur gear 202 drives the second spur gear 204 to rotate, and the second spur gear 204 rotates and drives the second screw 203 to rotate at the same time, and the second screw 203 rotates and drives the second threaded sleeve 205 to move at the same time, so that the second threaded sleeve 205 drives each connecting rod 206 to move, and the connecting rod 206 drives the side pressure cover 43 to move along the middle pressure cover 42.

[0031] like Figure 4 As shown, in some embodiments of the present invention, in order to achieve the effect of driving the clamping part 6, the clamping mechanism 300 includes a third motor 301 fixed under each of the movable seats 5, a third screw 302 is fixed at the output end of the third motor 301, a slider 305 is horizontally inserted under each of the movable seats 5, a third threaded sleeve 303 that can threadably cooperate with the third screw 302 is fixed at the end of each of the sliders 305, and a connecting rod 304 is movably hinged between each of the sliders 305 and the adjacent baffle 63.

[0032] When an explosion-proof membrane pressure testing device using the above structure is in operation, the third motor 301 drives the third screw 302 to rotate, so that the third screw 302 drives the slider 305 to move through the third threaded sleeve 303. When the slider 305 moves, it drives the connecting rod 304 to move. When the connecting rod 304 moves, it drives the baffle 63 to move downward.

[0033] like Figure 4 As shown, in some embodiments of the present invention, in order to achieve the effect of driving the moving seat 5 to move, the second moving mechanism 400 includes a fourth motor 401 fixed under each test box 1, and a third spur gear 402 is fixed at the output end of the fourth motor 401, and a rack 403 is fixed on the rear side of each of the moving seats 5, and each of the racks 403 is engaged with the third spur gear 402.

[0034] When the explosion-proof membrane pressure test device using the above structure is in operation, the fourth motor 401 drives the third spur gear 402 to rotate, so that the third spur gear 402 drives the rack 403 to move, and the rack 403 drives the movable base 5 to move along the guide groove 10.

[0035] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrative purposes. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof membrane pressure test device, characterized in that: include: A test box (1) is provided with a processing space (2) in the test box (1), a pressurizing chamber (3) is provided in the middle portion below the processing space (2), a platform edge (8) is provided on the pressurizing chamber (3), a pressure sensor (9) is provided in the pressurizing chamber (3), a plurality of guide grooves (10) are provided on the left and right sides of the test box (1) below the processing space (2), a pressure cover portion (4) that can be extended left and right is provided above the test box (1), and a movable seat (5) is inserted into each of the guide grooves (10) provided on the left and right sides. A clamping portion (6) is provided on the movable seat (5), a pressurizing portion (7) is provided in the pressurizing chamber (3), a first moving mechanism (100) capable of driving the pressure cover portion (4) to move downward is provided above the processing space (2), a driving mechanism (200) capable of driving the pressure cover portion (4) to operate is provided on the pressure cover portion (4), a clamping mechanism (300) capable of driving the clamping portion (6) is provided below the movable seat (5), and a second moving mechanism (400) capable of driving the movable seat (5) to move is provided below the test box (1).

2. The explosion-proof membrane pressure test device according to claim 1, characterized in that The gland portion (4) comprises a plug rod (41) that is longitudinally movably plugged into the upper portion of the test box (1); a middle gland (42) is fixed to the lower end of the plug rod (41); and side glands (43) are movably plugged into the left and right sides of the middle gland (42).

3. The explosion-proof membrane pressure test device according to claim 2, characterized in that The clamping portion (6) includes a moving rod (61) movably plugged into a side of the moving seat (5) close to the boost chamber (3), and a clamping plate (62) and a baffle (63) are respectively fixed at the upper and lower ends of each moving rod (61).

4. The explosion-proof membrane pressure test device according to claim 1, characterized in that The boosting part (7) comprises a plurality of groups of boosting nozzles (71) arranged in the boosting cavity (3), and an air delivery pipe (72) is provided below each group of the boosting nozzles (71) in communication.

5. The explosion-proof membrane pressure test device according to claim 2, characterized in that The first moving mechanism (100) comprises a first motor (101) fixed above the test box (1), a first screw (102) fixed at the output end of the first motor (101), a first threaded sleeve (103) fixed above the plug-in rod (41), and the first screw (102) and the first threaded sleeve (103) are threadedly matched.

6. The explosion-proof membrane pressure test device according to claim 3, characterized in that The driving mechanism (200) includes a second motor (201) fixed above the middle pressure cover (42), a first spur gear (202) fixed at the output end of the second motor (201), a second screw rod (203) movably sleeved on the plug-in rod (41), a second spur gear (204) fixed at the lower end of the second screw rod (203), the second spur gear (204) and the first spur gear (202) meshing, a second threaded sleeve (205) threadedly fitted on the second screw rod (203), and a connecting rod (206) movably hinged between the second threaded sleeve (205) and each of the side pressure covers (43).

7. The explosion-proof membrane pressure test device according to claim 3, characterized in that The clamping mechanism (300) includes a third motor (301) fixed below each of the movable seats (5), a third screw (302) fixed at the output end of the third motor (301), a slider (305) inserted transversely below each of the movable seats (5), a third threaded sleeve (303) threadably engaged with the third screw (302) fixed at the end of each of the sliders (305), and a connecting rod (304) movably hinged between each of the sliders (305) and the adjacent baffle (63).

8. The explosion-proof membrane pressure test device according to claim 1, characterized in that The second moving mechanism (400) comprises a fourth motor (401) fixed below each test box (1), a third spur gear (402) fixed at the output end of the fourth motor (401), a rack (403) fixed at the rear side of each moving seat (5), and each rack (403) meshes with the third spur gear (402).

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