Pressure vessels for testing shock recorders

Abstract

The present invention provides a pressure vessel for testing an impact recorder, including a test box, wherein the middle parts of both sides of the inner wall of the test box are fixedly connected with guide rails, and sliders are slidably arranged on the guide rails; a movable supporting test platform structure is fixedly connected to the inner side between the sliders, and the sliders are respectively located at one end of the two side walls of the movable supporting test platform structure away from the box cover; the movable supporting test platform structure can slide on the guide rails through the sliders, and can be moved out from the inner side of the test box; a constant force impact assembly is fixedly connected to the top opening of the test box. The movable plate in the present invention can slide on the guide rails through the sliders, and the movable plate can be moved out from the inside of the test box, so that the operator has sufficient operating space when installing or removing the impact recorder, thereby avoiding the problem of difficulty in installing or removing the impact recorder, and achieving the effect of facilitating the installation or removal of the impact recorder.

Description

Technical Field

[0001] The invention belongs to the technical field of impact recorder testing, and in particular relates to a pressure container for testing an impact recorder. Background Art

[0002] The pressure vessel for testing the impact recorder is a device that can put the impact recorder under a certain pressure and perform an impact test on the impact recorder. For example, the pressure vessel for testing the impact recorder with the announcement number CN105738060A includes a pressure vessel body fixedly arranged on the table of the vibration table, a sealing cover is provided at the opening of the pressure vessel body, and the bottom of the pressure vessel body is connected to an external inflation device through a pipeline. There are still some problems in the actual use of the pressure vessel, such as:

[0003] 1. Since the impact recorder mounting base is located in the pressure vessel and the space in the pressure vessel is limited, it is inconvenient for operators to install or remove the impact recorder;

[0004] 2. It is impossible to perform constant force impact test on the impact recorder under a certain pressure, so it may not be possible to determine whether the performance of the impact recorder is affected by pressure;

[0005] 3. The impact recorder cannot be connected to the control device, so the impact data fed back by the impact recorder cannot be observed in time, and it is impossible to determine in time whether the performance of the impact recorder is affected. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a pressure vessel for testing an impact recorder, which can facilitate the installation or disassembly of the impact recorder, and can also achieve the effect of performing a constant force impact test on the impact recorder, and is convenient for connecting the impact recorder to a control device, thereby facilitating an operator to observe the data fed back by the impact recorder, and further facilitating the operator to judge the performance of the impact recorder.

[0007] The technical scheme is as follows: a pressure vessel for testing an impact recorder comprises a test box, characterized in that an open end cover of the test box is connected with a box cover, and connecting plates are fixedly connected to the middle positions of both sides of the box cover; one end of a first electric push rod is hinged to the middle positions of both sides of the test box, and the other end of the first electric push rod is fixedly connected to the connecting plates; a U-shaped rubber layer is glued to one end of the box cover, and a handle is fixedly connected to the other end, wherein the U-shaped rubber layer is clamped between the box cover and the test box; an L-shaped bracket is fixedly connected to the side of the bottom of the test box away from the box cover; one end of a pressurized pipe is fixedly connected to the opening of the end of the test box away from the box cover, and the other end of the pressurized pipe is fixedly connected to a valve; a pressure gauge is fixedly connected to the opening of one side of the top of the test box near the corner of the box cover; A control panel is also fixedly connected to the top of the detection box, and the control panel is located on one side of the pressure gauge; guide rails are fixedly connected to the middle parts of the two sides of the inner wall of the detection box, and sliders are slidably arranged on the guide rails; a movable supporting detection platform structure is fixedly connected to the inner side between the sliders, and the sliders are respectively located at one end of the two side walls of the movable supporting detection platform structure away from the box cover; the movable supporting detection platform structure can slide on the guide rail through the slider and can be moved out from the inside of the detection box; a constant force impact assembly is fixedly connected to the opening on the top of the detection box, and a relatively constant impact force can be provided to the impact recorder through the constant force impact assembly; a sealed electrical connection assembly is fixedly connected to the opening on one side of the side wall of the detection box close to the control panel, and the sealed electrical connection assembly is electrically connected to the control panel.

[0008] Preferably, the movable supporting detection platform structure includes a movable plate, on both side walls of the movable plate are respectively fixedly connected with sliders; on both sides of the movable plate one end away from the slider are respectively fixedly connected with fixed plates, and on the inner side of the fixed plate one side away from the movable plate is respectively transversely provided with square through holes; inside the square through holes one end of a sliding rod is respectively slidably arranged, and the other end of the sliding rod is respectively fixedly connected with a supporting plate, wherein threaded holes are respectively transversely arranged in the inner middle part of the sliding rod; on both sides of the movable plate one end away from the slider are respectively fixedly connected with brackets, and the brackets are all located between the fixed plates; on the inner side of the brackets one side away from the movable plate is rotatably arranged with a double-headed screw, and on the outer wall of the double-headed screw is fixedly connected with an operating column, wherein the operating column is located between the brackets; the two ends of the double-headed screw are respectively threadedly connected in the threaded holes; and the supporting plates are respectively pressed against the guide rails.

[0009] Preferably, the constant force impact assembly comprises an inverted U-shaped mounting seat, the inner bottom end of the inverted U-shaped mounting seat is fixedly connected to a guide cylinder, and a lifting rod is sealed and slidably arranged at an opening in the middle part of the top of the guide cylinder, wherein one end of the lifting rod is fixedly connected to an iron block, and the other end is fixedly connected to an impact head; the impact head is lower than the bottom of the guide cylinder; a noise reduction layer is glued on the bottom surface of the iron block; a sliding block is fixedly connected to the outer wall of the lifting rod, and the sliding block is slidably arranged inside the guide cylinder, wherein through holes are longitudinally opened in the surrounding parts of the inner part of the sliding block; a spring is sleeved on the outer wall of the lifting rod, and the spring is located between the top of the sliding block and the top of the inner side of the guide cylinder; a second electric push rod is fixedly connected to the middle position of the top of the inverted U-shaped mounting seat, and the output rod of the second electric push rod slides through the interior of the inverted U-shaped mounting seat, wherein an electromagnet is fixedly connected to the output rod of the second electric push rod; the bottom side of the outer wall of the guide cylinder is fixedly connected to the top opening of the detection box; the impact head is pressed against the main body of the impact recorder.

[0010] Preferably, the sealed electrical connection assembly includes a fixed tube, one end of which is fixedly connected to an aviation socket, and the aviation socket is electrically connected to one end of a connecting wire, wherein the connecting wire passes through the interior of the fixed tube; the interior of the fixed tube is filled with a sealing filling layer for sealing the gap between the connecting wire and the fixed tube; the outer wall of the fixed tube is fixedly connected to an opening on one side of the side wall of the detection box close to the control panel; the aviation socket is located in the detection box, and an aviation plug is plugged into the aviation socket; the other end of the connecting wire is electrically connected to the control panel.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The movable plate in the present invention can slide on the guide rail through the slider, and the movable plate can be moved out from the inside of the detection box, so that the operator has sufficient operating space when installing or removing the impact recorder, thereby avoiding the problem of difficulty in installing or removing the impact recorder, and achieving the effect of facilitating the installation or removal of the impact recorder.

[0013] 2. During each impact test, since the second electric push rod moves at the same uniform speed, when the electromagnet separates from the iron block, the force of the spring acting on the sliding block will be relatively constant, and then the impact head can impact the impact recorder body with a relatively constant force, achieving the effect of constant force impact test on the impact recorder.

[0014] 3. In the present invention, after the impact recorder body enters the interior of the detection box, the operator can insert the aviation plug on the impact recorder body into the aviation socket. At this time, the impact recorder body can be connected to the control panel through the aviation plug, the aviation socket and the connecting wire, so that the control panel can receive the data fed back by the impact recorder body, and achieve the effect of connecting the impact recorder to the control device, so that the operator can observe the data fed back by the impact recorder, and then the operator can judge the performance of the impact recorder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 It is a partial cross-sectional schematic diagram of the present invention.

[0017] Figure 3 It is a partial enlarged schematic diagram of point A of the present invention.

[0018] Figure 4 It is a structural schematic diagram of the movable supporting type detection platform structure of the present invention.

[0019] Figure 5 It is a partial cross-sectional schematic diagram of the constant force impact assembly of the present invention.

[0020] Figure 6 It is a schematic structural diagram of the sealed electrical connection assembly of the present invention.

[0021] In the figure:

[0022] 1. Test box; 2. L-shaped bracket; 3. Pressurized pipe; 4. Valve; 5. Box cover; 6. Connecting plate; 7. First electric push rod; 8. Handle; 9. Pressure gauge; 10. Control panel; 11. Guide rail; 12. Slider; 13. Movable support type test bench structure; 14. Constant force impact assembly; 15. Sealed electrical connection assembly; 16. Moving plate; 17. Fixed plate; 18. Sliding rod; 19. Supporting plate; 20. Bracket; 21. Double-headed screw; 22 , operating column; 23, inverted U-shaped lifting platform; 24, impact recorder body; 25, threaded rod; 26, operating block; 27, hand nut; 28, inverted U-shaped mounting seat; 29, guide cylinder; 30, lifting rod; 31, iron block; 32, impact head; 33, noise reduction layer; 34, sliding stopper; 35, spring; 36, second electric push rod; 37, electromagnet; 38, fixing tube; 39, aviation socket; 40, connecting wire; 41, sealing filling layer. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1 , attached Figure 2 and attached Figure 3 As shown, a pressure vessel for testing an impact recorder comprises a test box 1, an open end cover of the test box 1 is connected with a box cover 5, and connecting plates 6 are fixedly connected to the middle positions of both sides of the box cover 5; one end of a first electric push rod 7 is hinged to the middle positions of both sides of the test box 1, and the other end of the first electric push rod 7 is fixedly connected to the connecting plate 6; a U-shaped rubber layer is glued to one end of the box cover 5, and a handle 8 is fixedly connected to the other end, wherein the U-shaped rubber layer is clamped between the box cover 5 and the test box 1; an L-shaped bracket is fixedly connected to the bottom of the test box 1 away from the box cover 5 2; one end of the pressurized pipe 3 is fixedly connected to the opening at one end of the detection box 1 away from the box cover 5, and the other end of the pressurized pipe 3 is fixedly connected to the valve 4; a pressure gauge 9 is fixedly connected to the opening on one side of the top of the detection box 1 close to the corner of the box cover 5; a control panel 10 is also fixedly connected to the top of the detection box 1, and the control panel 10 is located on one side of the pressure gauge 9; guide rails 11 are fixedly connected to the middle parts of both sides of the inner wall of the detection box 1, and sliders 12 are slidably arranged on the guide rails 11; the end of the valve 4 away from the pressurized pipe 3 is connected to the output end pipeline of the external air compressor.

[0024] The pressure vessel used to test the impact recorder also includes a movable support type test platform structure 13, a constant force impact assembly 14 and a sealed electrical connection assembly 15, and the movable support type test platform structure 13 is fixedly connected to the inner side between the sliders 12; the sliders 12 are respectively located at the ends of the two side walls of the movable support type test platform structure 13 away from the box cover 5; the movable support type test platform structure 13 can slide on the guide rail 11 through the sliders 12 and can be moved out from the inner side of the test box 1; the top opening of the test box 1 is fixedly connected with the constant force impact assembly 14, and the constant force impact assembly 15 is used to seal the electric connection assembly 15. Component 14 can provide a relatively constant impact force for the impact recorder; a sealed electrical connection component 15 is fixedly connected to an opening on one side of the side wall of the detection box 1 close to the control panel 10, and the sealed electrical connection component 15 is electrically connected to the control panel 10, which is conducive to achieving the effect of facilitating the installation or removal of the impact recorder, and can also achieve the effect of performing a constant force impact test on the impact recorder, and is convenient for connecting the impact recorder to the control device, so as to facilitate the operator to observe the data fed back by the impact recorder, and then facilitate the operator to judge the performance of the impact recorder.

[0025] In order to provide a certain amount of movement space for the box cover 5 , the vertical section of the L-shaped bracket 2 is located at a side of the bottom of the detection box 1 away from the box cover 5 .

[0026] Combined with Figure 4As shown, the movable supporting test platform structure 13 includes a movable plate 16, and the two side walls of the movable plate 16 are respectively fixedly connected to the slider 12; the two sides of the movable plate 16 away from the slider 12 are respectively fixedly connected to the fixed plate 17, and the inner side of the fixed plate 17 away from the movable plate 16 is respectively transversely opened with a square through hole; the inner side of the square through hole is respectively slidably provided with one end of a sliding rod 18, and the other end of the sliding rod 18 is respectively fixedly connected to the supporting plate 19, wherein the inner middle part of the sliding rod 18 is respectively transversely opened with threaded hole; brackets 20 are fixedly connected to both sides of one end of the movable plate 16 away from the slider 12, and the brackets 20 are located between the fixed plates 17; a double-headed screw 21 is rotatably provided on the inner side of the bracket 20 away from the movable plate 16, and an operating column 22 is fixedly connected to the outer wall of the double-headed screw 21, wherein the operating column 22 is located between the brackets 20; both ends of the double-headed screw 21 are respectively threadedly connected to the threaded holes; the supporting plates 19 are respectively pressed against the guide rails 11; the supporting plates 19 are made of stainless steel plates with a circular or rectangular longitudinal section.

[0027] In order to be able to adjust the height of the impact recorder body 24, so that the pressure vessel is suitable for various types of impact recorders, slide grooves are respectively provided on both sides of the middle position of the top of the movable plate 16, and an inverted U-shaped lifting platform 23 is slidably arranged inside the slide grooves; a threaded through hole is provided in the middle position inside the movable plate 16, and a threaded rod 25 is connected to the internal thread of the threaded through hole; one end of the threaded rod 25 is rotatably arranged in the middle position of the inner top of the inverted U-shaped lifting platform 23, and the other end is fixedly connected to an operating block 26; the top of the inverted U-shaped lifting platform 23 is detachably fixedly connected to the impact recorder body 24; the impact recorder body 24 is electrically connected to an aviation plug.

[0028] In order to prevent the threaded rod 25 from rotating on its own, a hand nut 27 is threadedly connected to the outer wall of the threaded rod 25, and the hand nut 27 is pressed against the bottom of the movable plate 16, so that the threaded rod 25 can be tightened by the hand nut 27, thereby increasing the friction force of the spiral pair between the threaded rod 25 and the movable plate 16, thereby achieving the purpose of preventing loosening.

[0029] When installing the impact recorder body 24, it is first necessary to support the box cover 5 through the handle 8, and then control the first electric push rod 7 to start through the control panel 10, so that the first electric push rod 7 drives the box cover 5 to move forward through the connecting plate 6. When the box cover 5 is separated from the detection box 1 by a certain distance, the operator can slowly lower the box cover 5 through the handle 8. At this time, the box cover 5 will drive the first electric push rod 7 to rotate around the hinge point as the center of the circle through the connecting plate 6 until the box cover 5 moves to the bottom side of the detection box 1. Then the operator can rotate the double-headed screw 21 through the operating column 22, so that the double-headed screw 21 drives the sliding rod 18 to move to the side close to the operating column 22 through the threaded hole until the supporting plate 1 9 is separated from the guide rail 11, and then the double-headed screw 21 can be pulled forward by the operating column 22, and the double-headed screw 21 will drive the movable plate 16 to move forward through the bracket 20, and the movable plate 16 will slide on the guide rail 11 through the slider 12 until the movable plate 16 is moved out of the interior of the detection box 1. Compared with the prior art, the movable plate 16 in the present invention can slide on the guide rail 11 through the slider 12, and the movable plate 16 can be moved out of the interior of the detection box 1, so that the operator has sufficient operating space when installing or removing the impact recorder, thereby avoiding the problem of difficulty in installing or removing the impact recorder, and achieving the effect of facilitating the installation or removal of the impact recorder.

[0030] Combined with Figure 5 As shown, the constant force impact assembly 14 includes an inverted U-shaped mounting seat 28, the inner bottom end of the inverted U-shaped mounting seat 28 is fixedly connected to a guide cylinder 29, and a lifting rod 30 is sealed and slidably arranged at the opening of the middle part of the top of the guide cylinder 29, wherein one end of the lifting rod 30 is fixedly connected to an iron block 31, and the other end is fixedly connected to an impact head 32; the impact head 32 is lower than the bottom of the guide cylinder 29; a noise reduction layer 33 is glued to the bottom surface of the iron block 31; a sliding stopper 34 is fixedly connected to the outer wall of the lifting rod 30, and the sliding stopper 34 is slidably arranged inside the guide cylinder 29, wherein the inside of the sliding stopper 34 Through holes are longitudinally opened on the surrounding parts; a spring 35 is sleeved on the outer wall of the lifting rod 30, and the spring 35 is located between the top of the sliding block 34 and the top of the inner side of the guide cylinder 29; a second electric push rod 36 is fixedly connected to the middle position of the top of the inverted U-shaped mounting seat 28, and the output rod of the second electric push rod 36 slides through the inside of the inverted U-shaped mounting seat 28, wherein an electromagnet 37 is fixedly connected to the output rod of the second electric push rod 36; the bottom side of the outer wall of the guide cylinder 29 is fixedly connected to the top opening of the detection box 1; the impact head 32 is pressed against the impact recorder body 24; the noise reduction layer 33 is made of a rubber layer.

[0031] After the impact recorder body 24 is installed on the upper part of the inverted U-shaped lifting platform 23, the operator can push the movable plate 16 into the interior of the detection box 1, and then rotate the double-headed screw 21 through the operating column 22, so that the double-headed screw 21 drives the sliding rod 18 to move to the side away from the operating column 22, until the sliding rod 18 drives the supporting plate 19 to press against the guide rail 11 respectively, so as to achieve the supporting effect. At this time, the movable plate 16 cannot move, and then the operator can rotate the hand nut 27 to make the hand nut 27 away from the movable plate 16, and then rotate the threaded rod 25 through the operating block 26, so that the threaded rod 25 drives the inverted U-shaped lifting platform 23 to move upward, until the impact recorder body 24 slightly lifts the impact head 32, and then tightens the hand nut 27, and waits for the test;When testing the impact recorder body 24, the operator can operate the control panel 10 to enter the impact mode, and then the control panel 10 will automatically control the second electric push rod 36 to start, so that the second electric push rod 36 drives the electromagnet 37 to move toward the iron block 31 until the electromagnet 37 contacts the iron block 31, and then the control panel 10 will automatically control the electromagnet 37 to start, so that the electromagnet 37 absorbs the iron block 31, and then the control panel 10 will start the second electric push rod 36 again, so that the second electric push rod 36 drives the iron block 31 to move upward at a uniform speed through the electromagnet 37, and when the iron block 31 moves upward During the process, the lifting rod 30 will drive the sliding block 34 to move upward inside the guide cylinder 29, and the sliding block 34 will gradually compress the spring 35. At this time, the force of the spring 35 on the sliding block 34 will gradually increase. When the force is greater than the magnetic attraction between the electromagnet 37 and the iron block 31, the spring 35 will drive the lifting rod 30 to move downward through the sliding block 34, and the lifting rod 30 will drive the impact head 32 to impact the impact recorder body 24. During each impact test, the second electric push rod 36 will move at the same speed at a uniform speed. When the electromagnet 37 is separated from the iron block 31, the force of the spring 35 on the sliding block 34 will be relatively constant, and then the impact head 32 can impact the impact recorder body 24 with a relatively constant force, so as to achieve the effect of constant force impact test on the impact recorder. After the impact recorder body 24 is impacted, the impact data will be sent to the control panel 10 through the aviation plug and the sealed electrical connection component 15 and displayed, thereby completing the test in a pressure-free environment. Then the operator can move the box cover 5 through the handle 8 to make the box cover 5 face the opening end of the detection box 1, and The control panel 10 controls the first electric push rod 7 to start until the box cover 5 is connected to the detection box 1, and then the external air compressor and valve 4 are turned on to make the air compressor charge the detection box 1. The operator can timely understand the pressure in the detection box 1 through the pressure gauge 9. When the pressure reaches a certain value, the operator can close the valve 4 and the air compressor at the same time, and then the impact recorder body 24 can be impacted again, and the data in the non-pressure environment and the data in the pressure environment can be compared through the control panel 10, so as to facilitate the operator to judge the performance of the impact recorder body 24. ;

[0032] Combined with Figure 6As shown, the sealed electrical connection assembly 15 includes a fixed tube 38, one end of which is fixedly connected to an aviation socket 39, and one end of a connecting wire 40 is electrically connected to the aviation socket 39, wherein the connecting wire 40 runs through the interior of the fixed tube 38; the interior of the fixed tube 38 is filled with a sealing filling layer 41 for sealing the gap between the connecting wire 40 and the fixed tube 38; the outer wall of the fixed tube 38 is fixedly connected to an opening on one side of the side wall of the detection box 1 close to the control panel 10; the aviation socket 39 is located in the detection box 1, and an aviation plug is plugged into the aviation socket 39; the other end of the connecting wire 40 is electrically connected to the control panel 10; the sealing filling layer 41 adopts an epoxy resin potting glue layer.

[0033] After the impact recorder body 24 enters the interior of the detection box 1, the operator can insert the aviation plug on the impact recorder body 24 into the aviation socket 39. At this time, the impact recorder body 24 can be connected to the control panel 10 through the aviation plug, the aviation socket 39 and the connecting wire 40, so that the control panel 10 can receive the data fed back by the impact recorder body 24, thereby achieving the effect of facilitating the connection of the impact recorder to the control device, thereby facilitating the operator to observe the data fed back by the impact recorder, and then facilitating the operator to judge the performance of the impact recorder.

[0034] In order to prevent the sliding rod 18 from rotating automatically during the movement, the sliding rod 18 is a stainless steel rod adapted to the inside of the square through hole.

[0035] In order to enable the sliding rod 18 to move in opposite directions, the double-headed screw 21 is made of stainless steel, and the threads on both sides of the outer wall of the double-headed screw 21 have opposite rotation directions.

[0036] In order to make it easier for the operator to rotate the operating column 22, the operating column 22 is made of a stainless steel column with a circular longitudinal section, and the outer wall of the operating column 22 is rolled with straight knurling, which can play an anti-slip role.

[0037] In order to facilitate the control of various electrical appliances, the electromagnet 37, the first electric push rod 7 and the second electric push rod 36 are electrically connected to the control panel 10 respectively; the control panel 10 adopts a digital display panel with an embedded FX2N-48 type PLC.

[0038] Utilizing the technical solution described in the present invention, or those skilled in the art designing a similar technical solution inspired by the technical solution of the present invention to achieve the above-mentioned technical effects, all fall within the protection scope of the present invention.

Claims

1. A pressure vessel for testing an impact recorder, comprising a test box (1), characterized in that: The open end cover of the detection box (1) is connected to a box cover (5), and the middle positions of both sides of the box cover (5) are respectively fixedly connected to connecting plates (6); one end of a first electric push rod (7) is respectively hinged to the middle positions of both sides of the detection box (1), and the other end of the first electric push rod (7) is respectively fixedly connected to the connecting plates (6); a U-shaped rubber layer is glued to one end of the box cover (5), and a handle (8) is fixedly connected to the other end, wherein the U-shaped rubber layer is clamped between the box cover (5) and the detection box (1); an L-shaped bracket (2) is fixedly connected to the side of the bottom of the detection box (1) away from the box cover (5); one end of the pressure tube (3) is fixedly connected to the opening of the end of the detection box (1) away from the box cover (5), and the other end of the pressure tube (3) is fixedly connected to the A valve (4) is connected; a pressure gauge (9) is fixedly connected to an opening on one side of the top of the detection box (1) near the corner of the box cover (5); a control panel (10) is also fixedly connected to the top of the detection box (1), and the control panel (10) is located on one side of the pressure gauge (9); guide rails (11) are respectively fixedly connected to the middle parts of the two sides of the inner wall of the detection box (1), and sliders (12) are respectively slidably arranged on the guide rails (11); a movable supporting and fixed detection platform structure (13) is fixedly connected to the inner sides between the sliders (12), and the sliders (12) are respectively located at the ends of the two side walls of the movable supporting and fixed detection platform structure (13) away from the box cover (5); the movable supporting and fixed detection platform structure (13) can be moved on the guide rails (11) through the sliders (12). The detection box (1) can slide and be moved out from the inner side of the detection box (1); a constant force impact assembly (14) is fixedly connected to the top opening of the detection box (1), and a relatively constant impact force can be provided to the impact recorder through the constant force impact assembly (14); a sealed electrical connection assembly (15) is fixedly connected to the opening of the side wall of the detection box (1) close to the control panel (10), and the sealed electrical connection assembly (15) is electrically connected to the control panel (10); the movable support type detection table structure (13) comprises a movable plate (16), and the two side walls of the movable plate (16) are respectively fixedly connected to the slider (12); the two sides of the movable plate (16) away from the slider (12) are respectively fixedly connected to the fixed plate (17), and the fixed plate (17) ) are respectively provided with square through holes in the interior thereof on one side away from the movable plate (16); one end of a sliding rod (18) is respectively slidably arranged in the interior thereof, and the other end of the sliding rod (18) is respectively fixedly connected to a supporting plate (19), wherein a threaded hole is respectively provided in the interior middle portion thereof; brackets (20) are respectively fixedly connected to both sides of one end of the movable plate (16) away from the slider (12), and the brackets (20) are all located between the fixed plates (17); a double-headed screw (21) is rotatably arranged in the interior thereof on one side away from the movable plate (16), and an operating column (22) is fixedly connected to the outer wall of the double-headed screw (21), wherein the operating column (22) is located between the brackets (20);The two ends of the double-headed screw (21) are respectively threadedly connected to the threaded holes; the supporting plates (19) are respectively pressed against the guide rails (11); the constant force impact assembly (14) comprises an inverted U-shaped mounting seat (28), the inner bottom end of the inverted U-shaped mounting seat (28) is fixedly connected to a guide cylinder (29), and a lifting rod (30) is sealed and slidably arranged at the opening in the middle part of the top of the guide cylinder (29), wherein one end of the lifting rod (30) is fixedly connected to an iron block (31), and the other end is fixedly connected to an impact head (32); the impact head (32) is lower than the guide cylinder (29). The bottom surface of the iron block (31) is glued with a noise reduction layer (33); a sliding block (34) is fixedly connected to the outer wall of the lifting rod (30), and the sliding block (34) is slidably arranged inside the guide cylinder (29), wherein the inner peripheral parts of the sliding block (34) are respectively longitudinally provided with through holes; a spring (35) is sleeved on the outer wall of the lifting rod (30), and the spring (35) is located between the top of the sliding block (34) and the inner top of the guide cylinder (29); a second electric push rod is fixedly connected to the middle position of the top of the inverted U-shaped mounting seat (28) (36), and the output rod of the second electric push rod (36) slides through the inside of the inverted U-shaped mounting seat (28), wherein the output rod of the second electric push rod (36) is fixedly connected to an electromagnet (37); the bottom side of the outer wall of the guide cylinder (29) is fixedly connected to the top opening of the detection box (1); the impact head (32) is tightly pressed against the impact recorder body (24); the sealed electrical connection assembly (15) includes a fixed tube (38), one end of the fixed tube (38) is fixedly connected to an aviation socket (39), and the aviation socket (39) is electrically connected to a connection conductor One end of the connecting wire (40), wherein the connecting wire (40) passes through the interior of the fixing tube (38); the interior of the fixing tube (38) is filled with a sealing filling layer (41) for sealing the gap between the connecting wire (40) and the fixing tube (38); the outer wall of the fixing tube (38) is fixedly connected to the side opening of the side wall of the detection box (1) close to the control panel (10); the aviation socket (39) is located in the detection box (1), and the aviation socket (39) is plugged with an aviation plug; the other end of the connecting wire (40) is electrically connected to the control panel (10). ; 2. The pressure vessel for testing the impact recorder according to claim 1, characterized in that: The vertical section of the L-shaped bracket (2) is located at a side of the bottom of the detection box (1) away from the box cover (5).

3. The pressure vessel for testing an impact recorder according to claim 1, characterized in that: The movable plate (16) is provided with slide grooves on both sides of the middle position of the top, and an inverted U-shaped lifting platform (23) is slidably arranged inside the slide grooves; a threaded through hole is provided in the middle position inside the movable plate (16), and a threaded rod (25) is connected to the thread inside the threaded through hole; one end of the threaded rod (25) is rotatably arranged at the middle position of the inner top of the inverted U-shaped lifting platform (23), and the other end is fixedly connected to an operating block (26).

4. The pressure vessel for testing an impact recorder according to claim 3, characterized in that: A hand-tightening nut (27) is threadedly connected to the outer wall of the threaded rod (25), and the hand-tightening nut (27) is tightly pressed against the bottom of the movable plate (16).

5. The pressure vessel for testing an impact recorder according to claim 3, characterized in that: The top of the inverted U-shaped lifting platform (23) is detachably and fixedly connected to a shock recorder body (24).

6. The pressure vessel for testing an impact recorder according to claim 1, characterized in that: The impact recorder body (24) is electrically connected to an aviation plug.

7. The pressure vessel for testing an impact recorder according to claim 1, characterized in that: The sealing filling layer (41) is an epoxy resin potting glue layer.

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