Detection mechanism and pure water hydrogen production electrolytic cell with same

Abstract

The invention discloses a detection mechanism and a pure water hydrogen production electrolytic bath with the detection mechanism, and relates to the technical field of pure water hydrogen production. The detection mechanism comprises a moving mechanism, an annular cover is connected to the moving mechanism, and the moving mechanism is used for moving the annular cover; the pressure sensor is fixedly inserted into the inner side wall of the annular cover and is used for detecting the pressure in the annular cover; the annular groove is formed in the inner side wall of the annular cover, and a sealing ring is arranged in the annular cover. According to the detection mechanism and the pure water hydrogen production electrolytic cell with the detection mechanism, all gaskets can be continuously detected conveniently, detection is more convenient and faster, meanwhile, leakage can be found in time when leakage occurs, and when leakage occurs, the leakage can be temporarily blocked and sealed through an annular cover, and the detection mechanism is safer and more reliable; impurities such as dust on the surface of the gasket can be automatically cleaned, so that the detection result is more accurate and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of pure water hydrogen production, and specifically to a detection mechanism and a pure water hydrogen production electrolytic cell with a detection mechanism. Background Technique

[0002] A pure water hydrogen production electrolytic cell is a device that generates hydrogen by electrolyzing pure water. The proton exchange membrane electrolytic cell belongs to a type of pure water hydrogen production electrolytic cell. When in use, deionized water that meets the requirements is sent into the anode chamber of the electrolytic cell. After being energized, water decomposes into hydrogen ions and oxygen at the anode, and the oxygen is discharged from the anode chamber. The hydrogen ions, in the form of hydrated ions, reach the cathode under the action of the electric field force, and combine with electrons to generate hydrogen under the action of the cathode platinum catalyst. The proton exchange membrane electrolytic cell mainly consists of a membrane electrode assembly, bipolar plates, end plates, gaskets, etc. The gasket is a common type of sealing element, usually a thin sheet made of materials such as rubber, plastic, metal, etc., and is used to fill the gap between two connecting components to increase the sealing performance and prevent liquid or gas leakage. For example, in a proton exchange membrane electrolytic cell, the gasket can be used between the membrane electrode assembly and the bipolar plate to play a role in sealing and buffering.

[0003] However, when the existing pure water hydrogen production electrolytic cell is in use, the sealing gasket may leak due to reasons such as material aging, temperature influence, pressure action, chemical corrosion, and improper installation, affecting its sealing performance. However, during use, it is not convenient to detect the sealing performance of the sealing gasket, and it is not easy to be discovered in time when leakage occurs, which easily leads to leakage of gas and electrolyte, affecting the normal operation of the electrolytic cell, and at the same time, there are potential safety hazards. Summary of the Invention

[0004] The purpose of the present invention is to provide a detection mechanism and a pure water hydrogen production electrolytic cell with a detection mechanism to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A detection mechanism, including:

[0006] A moving mechanism, on which an annular cover is connected, and the moving mechanism is used to move the annular cover;

[0007] A pressure sensor, fixedly inserted into the inner side wall of the annular cover, and used to detect the pressure inside the annular cover;

[0008] An annular groove, opened on the inner side wall of the annular cover, and a sealing ring is arranged inside the annular cover;

[0009] A plurality of air extraction mechanisms, arranged inside the annular cover, and used to suck the air inside the annular cover.

[0010] Preferably, each of the air extraction mechanisms includes:

[0011] A fixed cylinder, fixed to the inner end face of the annular cover;

[0012] A moving component, arranged inside the annular cover, and a piston is connected to the moving component, enabling the piston to slide inside the fixed cylinder;

[0013] A round hole, opened on the end face of the annular cover and communicating with the fixed cylinder.

[0014] Preferably, the moving component includes:

[0015] Two guide rods, arranged inside the annular cover and fixed to two opposite inner side walls of the annular cover;

[0016] A moving ring, sleeved on the side walls of the two guide rods and fixed to the end face of the piston through a connecting rod;

[0017] A first elastic member, sleeved on the side walls of each guide rod, and the first elastic member is located between the moving ring and the annular cover;

[0018] A limiting mechanism, arranged on the side walls of the moving ring and the piston opposite to each other, and the limiting mechanism is used to limit the moving ring.

[0019] Preferably, the limiting mechanism includes:

[0020] A reset mechanism, arranged on the side wall of the moving ring, and a limiting block is connected to the reset mechanism. The reset mechanism is used to reset the limiting block, and an inclined surface is arranged on the side wall of the limiting block;

[0021] A pushing plate, fixed to the inner end face of the annular cover, enabling one end of the pushing plate away from the inner end face of the annular cover to slide on the inclined surface.

[0022] Preferably, the reset mechanism includes:

[0023] Two T-shaped guide rods, fixed to the top of the limiting block;

[0024] A connecting block, sleeved on the side walls of the two T-shaped guide rods and fixed to the side wall of the moving ring;

[0025] A second elastic member, sleeved on the side walls of each T-shaped guide rod, and the second elastic member is located between the limiting block and the upper end of the T-shaped guide rod.

[0026] Preferably, it further includes a cleaning mechanism, arranged inside the annular cover;

[0027] The cleaning mechanism includes:

[0028] A rotating mechanism is provided on the end face of the moving ring opposite to the piston, and a rotating ring is connected to the rotating mechanism. The rotating mechanism is used to rotate the rotating ring, and a plurality of bristles are fixedly connected to the inner side wall of the rotating ring;

[0029] A pushing mechanism is provided on the side wall of the rotating ring for pushing the rotating ring to rotate.

[0030] Preferably, the rotating mechanism includes:

[0031] A plurality of fixing blocks are fixed on the side wall of the moving ring;

[0032] An annular groove is formed on the end face of the rotating ring opposite to the moving ring;

[0033] An annular guide rail is inserted into the annular groove and fixed to the fixing block.

[0034] Preferably, the pushing mechanism includes:

[0035] A pushing plate is fixed on the side wall of the rotating ring;

[0036] A plurality of V-shaped grooves connected end to end are formed on the side wall of the pushing plate, and each V-shaped groove includes a first inclined groove and a second inclined groove connected end to end;

[0037] A pushing pin is inserted into the V-shaped groove and fixed to the fixed cylinder through a support block.

[0038] Preferably, the moving mechanism includes:

[0039] A fixed rod, and two support plates are fixedly connected to both ends of the fixed rod;

[0040] A threaded rod is rotatably connected to the opposite side walls of the two support plates;

[0041] A motor is fixed on the side wall of one of the support plates, and the output end of the motor is fixed to one end of the threaded rod;

[0042] A moving block is sleeved on the side wall of the fixed rod and is threadedly connected to the threaded rod. The moving block is fixed to the side wall of the annular cover.

[0043] A pure water hydrogen production electrolytic cell with a detection mechanism includes two end plates and a plurality of electrolysis units provided on the electrolytic cell body. Each electrolysis unit includes two bipolar plates and gaskets, and further includes the above-mentioned detection mechanism. The detection mechanism can slide on the side wall of the bipolar plate and detect the sealing performance of the gasket.

[0044] Compared with the prior art, the beneficial effects of the present invention are:

[0045] This kind of detection mechanism and the pure water hydrogen production electrolytic cell with a detection mechanism are convenient for continuously detecting all gaskets by setting up an air extraction mechanism, a limiting mechanism, a cleaning mechanism, etc. The detection is more convenient and fast. At the same time, leakage can be detected in time, and when leakage occurs, it can be temporarily blocked and sealed by using an annular cover, which is safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of the overall structure of the detection mechanism in the present invention;

[0047] Figure 2 It is a partial sectional view structure schematic diagram of the annular cover in the present invention;

[0048] Figure 3 It is a partial sectional view structure schematic diagram of the annular cover from another perspective in the present invention;

[0049] Figure 4 It is a position schematic diagram of the cleaning mechanism in the present invention;

[0050] Figure 5 It is a schematic diagram of the usage state of the detection mechanism in the present invention;

[0051] Figure 6 It is a schematic diagram of the usage state of the detection mechanism from another perspective in the present invention;

[0052] Figure 7 For Figure 2 The enlarged structure schematic diagram at position A in

[0053] Figure 8 For Figure 3 The enlarged structure schematic diagram at position B in

[0054] Figure 9 For Figure 4 The enlarged structure schematic diagram at position C in

[0055] Figure 10 For Figure 7 The enlarged structure schematic diagram at position D in

[0056] Figure 11 For Figure 8 The enlarged structure schematic diagram at position E in

[0057] Figure 12 For Figure 9 The enlarged structure schematic diagram at position F in

[0058] In the figure: 101, end plate; 102, bipolar plate; 103, gasket; 201, annular cover; 202, pressure sensor; 203, annular groove; 204, sealing ring; 301, fixed cylinder; 302, round hole; 303, piston; 401, moving ring; 402, connecting rod; 403, guide rod; 404, first elastic member; 501, support plate; 502, fixed rod; 503, threaded rod; 504, motor; 505, moving block; 601, limit block; 602, inclined surface; 603, push plate; 701, connecting block; 702, T-shaped guide rod; 703, second elastic member; 801, rotating ring; 802, brush bristles; 901, push plate; 902, first inclined groove; 903, second inclined groove; 904, push pin; 905, support block; 1001, fixed block; 1002, annular guide rail; 1003, annular groove. Detailed implementation manners

[0059] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0060] Please refer to Figures 1 - 12 , the present invention provides a detection mechanism, including:

[0061] A moving mechanism, on which an annular cover 201 is connected, and the moving mechanism is used to move the annular cover 201;

[0062] A pressure sensor 202, fixedly inserted on the side wall of the annular cover 201, and used to detect the pressure inside the annular cover 201;

[0063] An annular groove 203, opened on the inner side wall of the annular cover 201, and a sealing ring 204 is arranged inside the annular cover 203;

[0064] A plurality of air extraction mechanisms, arranged inside the annular cover 201, and used to suck the air inside the annular cover 201;

[0065] This detection mechanism is convenient for continuously detecting the gaskets 103 on all electrolytic cell bodies, the detection is more convenient and fast. At the same time, it can be timely detected when leakage occurs, and when leakage occurs, the annular cover 201 can be used to temporarily block and seal it, which is safer and more reliable.

[0066] Please refer to Figures 7 - 9 , each air extraction mechanism includes:

[0067] A fixed cylinder 301, fixed on the inner end surface of the annular cover 201;

[0068] A moving component is disposed within the annular cover 201, and a piston 303 is connected to the moving component such that the piston 303 can slide within the fixed cylinder 301;

[0069] A circular hole 302 is formed in the end face of the annular cover 201 and is in communication with the fixed cylinder 301. By driving the piston 303 along the fixed cylinder 301 towards the direction close to the circular hole 302 through the moving component, at this time, the air within the annular cover 201 can enter the fixed cylinder 301, causing a negative pressure to gradually generate within the annular cover 201.

[0070] Please refer to Figure 9 and Figure 10 , the moving component includes:

[0071] Two guide rods 403 are disposed within the annular cover 201 and are fixed to two opposite inner side walls of the annular cover 201;

[0072] A moving ring 401 is sleeved on the side walls of the two guide rods 403 and is fixed to the end face of the piston 303 through a connecting rod 402;

[0073] A first elastic member 404 is sleeved on the side wall of each guide rod 403, and the first elastic member 404 is located between the moving ring 401 and the annular cover 201. The first elastic member 404 can be a spring, and both ends of the first elastic member 404 are respectively fixed to the moving ring 401 and the annular cover 201;

[0074] A limiting mechanism is disposed on the side wall of the moving ring 401 opposite to the piston 303, and the limiting mechanism is used to limit the moving ring 401. By limiting the moving ring 401 through the limiting mechanism, the connecting rod 402 and the piston 303 no longer move. When the annular cover 201 continues to move, it can drive the fixed cylinder 301 to move. At the same time, the first elastic member 404 is compressed. At this time, the piston 303 can be driven to move along the fixed cylinder 301 towards the direction close to the circular hole 302.

[0075] Please refer to Figure 11 and Figure 12 , the limiting mechanism includes:

[0076] A reset mechanism is disposed on the side wall of the moving ring 401, and a limiting block 601 is connected to the reset mechanism. The reset mechanism is used to reset the limiting block 601, and an inclined surface 602 is provided on the side wall of the limiting block 601;

[0077] The push plate 603 is fixed to the inner end face of the annular cover 201, so that one end of the push plate 603 away from the inner end face of the annular cover 201 can slide on the inclined surface 602. When the limit block 601 moves between the two bipolar plates 102, the limit block 601 can move away from the connection block 701 under the action of the reset mechanism. When the limit block 601 abuts against the side wall of the bipolar plate 102, the annular cover 201 can cover the gasket 103. When the annular cover 201 continues to move, the moving ring 401 no longer moves.

[0078] Please refer to Figure 11 , the reset mechanism includes:

[0079] Two T-shaped guide rods 702 are fixed to the top of the limit block 601;

[0080] The connection block 701 is sleeved on the side walls of the two T-shaped guide rods 702 and fixed to the side wall of the moving ring 401;

[0081] The second elastic member 703 is sleeved on the side wall of each T-shaped guide rod 702, and the second elastic member 703 is located between the limit block 601 and the upper end of the T-shaped guide rod 702, playing a guiding and resetting role in the movement of the limit block 601. The second elastic member 703 can be a spring, and both ends of the second elastic member 703 are fixed to the limit block 601 and the upper end of the T-shaped guide rod 702 respectively.

[0082] Please refer to Figure 9 , Figure 10 and Figure 12 , the detection mechanism further includes:

[0083] The cleaning mechanism is arranged inside the annular cover 201;

[0084] The cleaning mechanism includes:

[0085] The rotating mechanism is arranged on the end face of the moving ring 401 opposite to the piston 303, and a rotating ring 801 is connected to the rotating mechanism. The rotating mechanism is used to rotate the rotating ring 801, and a plurality of bristles 802 are fixedly connected to the inner side wall of the rotating ring 801;

[0086] The pushing mechanism is arranged on the side wall of the rotating ring 801 and is used to push the rotating ring 801 to rotate. In the prior art, when the pure water hydrogen production electrolytic cell is in use, dust and other impurities are likely to adhere to the side wall of the gasket 103, which will also affect the detection of the sealing performance. By the pushing mechanism and the rotating mechanism, the moving ring 401 makes a reciprocating swing. When the bristles 802 move between the two bipolar plates 102, they can reset and abut against the side wall of the gasket 103, so as to automatically clean the dust and other impurities on the surface of the gasket 103, making the detection result more accurate and reliable.

[0087] Please refer to Figure 10 andFigure 12 , the rotating mechanism includes:

[0088] A plurality of fixed blocks 1001, fixed to the side wall of the moving ring 401;

[0089] An annular groove 1003, opened on the end face of the rotating ring 801 opposite to the moving ring 401;

[0090] An annular guide rail 1002, inserted into the annular groove 1003 and fixed to the fixed block 1001 to ensure the normal rotation of the rotating ring 801.

[0091] Please refer to Figure 10 and Figure 12 , the pushing mechanism includes:

[0092] A pushing plate 901, fixed to the side wall of the rotating ring 801;

[0093] A plurality of V-shaped grooves connected end to end, opened on the side wall of the pushing plate 901, and each V-shaped groove includes a first inclined groove 902 and a second inclined groove 903 connected end to end;

[0094] A pushing pin 905, inserted into the V-shaped groove and fixed to the fixed cylinder 301 through a support block 904. When the rotating ring 801 stops moving, it can drive the support block 905 to slide along the second inclined groove 903 and the first inclined groove 902 through the pushing pin 904. At this time, it can push the rotating ring 801 to swing reciprocally along the annular guide rail 1002.

[0095] Please refer to Figure 1 , Figure 5 and Figure 6 , the moving mechanism includes:

[0096] A fixed rod 502, and two support plates 501 are fixedly connected to both ends of the fixed rod 502;

[0097] A threaded rod 503, rotatably connected to the opposite side walls of the two support plates 501;

[0098] A motor 504, fixed to the side wall of one of the support plates 501, and the output end of the motor 504 is fixed to one end of the threaded rod 503;

[0099] A moving block 505, sleeved on the side wall of the fixed rod 502 and threadedly connected to the threaded rod 503. The moving block 505 is fixed to the side wall of the annular cover 201. Starting the motor 504, the rotation of the motor 504 drives the rotation of the threaded rod 503, thereby driving the moving block 505 to slide along the side wall of the fixed rod 502, and further driving the annular cover 201 to slide along the side wall of the electrolysis unit.

[0100] Please refer to Figure 5 and Figure 6, A pure water hydrogen production electrolytic cell with a detection mechanism, including two end plates 101 and multiple electrolytic units arranged on the electrolytic cell body. Each electrolytic unit includes two bipolar plates 102 and gaskets 103. The electrolytic cell body, end plates 101, and multiple electrolytic units are well-known technologies in this technical field and will not be elaborated here. It also includes the above-mentioned detection mechanism. The detection mechanism can slide on the side wall of the bipolar plate 102 and detect the sealing performance of the gasket 103. The support plate 501 is fixed to the side walls of the two end plates 101 respectively. The sealing ring 204 can slide on the side wall of the bipolar plate 102, which can ensure the sealing effect.

[0101] Working principle: When the electrolytic cell body is in use, start the motor 504. The rotation of the motor 504 drives the rotation of the threaded rod 503, thereby driving the moving block 505 to slide along the side wall of the fixed rod 502, and then driving the annular cover 201 to slide along the side wall of the electrolytic unit. When the limiting block 601 moves between the two bipolar plates 102, the limiting block 601 can move away from the connecting block 701 under the action of the second elastic member 703. When the limiting block 601 abuts against the side wall of the bipolar plate 102, the annular cover 201 can cover the gasket 103. When the annular cover 201 continues to move, the moving ring 401 stops moving, so that the connecting rod 402 and the piston 303 stop moving. When the annular cover 201 continues to move, it can drive the fixed cylinder 301 to move. At the same time, the first elastic member 404 is compressed. At this time, the piston 303 can move along the fixed cylinder 301 towards the direction close to the round hole 302. At this time, the air in the annular cover 201 can enter the fixed cylinder 301, making the annular cover 201 gradually generate negative pressure. At this time, the pressure sensor 202 can detect the pressure in the closed space formed by the annular cover 201, the bipolar plate 102, and the sealing gasket 103, and then determine whether the gasket 103 leaks.

[0102] Moreover, when detecting the sealing performance of the gasket 103, when the rotating ring 801 stops moving and the fixed cylinder 301 continues to move with the annular cover 201, the first elastic member 404 is gradually compressed. At the same time, when the bristles 802 move between the two bipolar plates 102, they can reset and abut against the side wall of the gasket 103. And when the fixed cylinder 301 moves, it can drive the support block 905 to slide along the second inclined groove 903 and the first inclined groove 902 through the push pin 904. At this time, it can drive the rotating ring 801 to swing reciprocally along the annular guide rail 1002, and drive the bristles 802 to swing reciprocally, so as to clean the dust and other impurities on the surface of the gasket 103, making the detection result more accurate and reliable.

[0103] After the detection is completed, when the annular cover 201 continues to move, the side wall of the push plate 603 can abut against the inclined surface 602, so as to push the limit block 601 to move in the direction close to the connection block 701. At the same time, the second elastic member 703 is compressed, and the limit block 601 can be moved to the side wall of the bipolar plate 102. At this time, the moving ring 401 is no longer limited, and the moving ring 401 can move and reset in the direction away from the circular hole 302 under the action of the guide rod 403. At the same time, the piston 303 is driven to move and reset through the connecting rod 402, so that the air in the fixed cylinder 301 is squeezed into the annular cover 201 again for subsequent detection operations. In this way, all the gaskets 103 can be continuously detected. The detection is more convenient and fast. At the same time, leakage can be detected in time when it occurs. And when leakage occurs, the annular cover 201 can be used to temporarily block and seal it, which is safer and more reliable. And when the annular cover 201 continues to move, when the bristles 802 abut against the side wall of the bipolar plate 102, the bristles 802 can be pushed to bend and can slide on the surface of the bipolar plate 102.

[0104] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, it will not be elaborated here. The content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0105] The above describes the present invention and its embodiments. This description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. All in all, if those skilled in the art are inspired by it and design similar structural modes and embodiments without creative efforts without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A detection mechanism, characterized in that: Comprising: A moving mechanism, on which a ring cover (201) is connected, and the moving mechanism is used to move the ring cover (201); A pressure sensor (202), fixedly inserted into the inner side wall of the ring cover (201), for detecting the pressure inside the ring cover (201); A ring groove (203), opened on the inner side wall of the ring cover (201), and a sealing ring (204) is arranged inside the ring cover (203); A plurality of air extraction mechanisms, arranged inside the ring cover (201), for sucking the air inside the ring cover (201).

2. The detection mechanism according to claim 1, characterized in that: Each of the air extraction mechanisms includes: A fixed cylinder (301), fixed to the inner end face of the ring cover (201); A moving component, arranged inside the ring cover (201), and a piston (303) is connected to the moving component, so that the piston (303) can slide inside the fixed cylinder (301); A round hole (302), opened on the end face of the ring cover (201) and communicating with the fixed cylinder (301).

3. The detection mechanism according to claim 2, characterized in that: The moving component includes: Two guide rods (403), arranged inside the ring cover (201) and fixed to two opposite inner side walls of the ring cover (201); A moving ring (401), sleeved on the side walls of the two guide rods (403) and fixed to the end face of the piston (303) through a connecting rod (402); A first elastic member (404), sleeved on the side walls of each of the guide rods (403), and the first elastic member (404) is located between the moving ring (401) and the ring cover (201); A limiting mechanism, arranged on the opposite side walls of the moving ring (401) and the piston (303), and the limiting mechanism is used to limit the moving ring (401).

4. The inspection mechanism according to claim 3, characterized in that: The limiting mechanism includes: A reset mechanism, arranged on the side wall of the moving ring (401), and a limiting block (601) is connected to the reset mechanism. The reset mechanism is used to reset the limiting block (601), and an inclined surface (602) is arranged on the side wall of the limiting block (601); A pushing plate (603), fixed to the inner end face of the ring cover (201), so that one end of the pushing plate (603) away from the inner end face of the ring cover (201) can slide on the inclined surface (602).

5. The detection mechanism according to claim 4, characterized in that: The reset mechanism includes: Two T-shaped guide rods (702), fixed to the top of the limiting block (601); A connecting block (701), sleeved on the side walls of the two T-shaped guide rods (702) and fixed to the side wall of the moving ring (401); A second elastic member (703), sleeved on the side walls of each of the T-shaped guide rods (702), and the second elastic member (703) is located between the limiting block (601) and the upper end of the T-shaped guide rod (702).

6. The inspection mechanism according to claim 1, characterized in that: It further includes: A cleaning mechanism, arranged inside the ring cover (201); The cleaning mechanism includes: A rotating mechanism, arranged on the opposite end face of the moving ring (401) and the piston (303), and a rotating ring (801) is connected to the rotating mechanism. The rotating mechanism is used to rotate the rotating ring (801), and a plurality of bristles (802) are fixedly connected to the inner side wall of the rotating ring (801); A driving mechanism is arranged on the side wall of the rotating ring (801) and is used to drive the rotating ring (801) to rotate.

7. A detection mechanism according to claim 6, characterized in that: The rotating mechanism includes: A plurality of fixed blocks (1001) are fixed on the side wall of the moving ring (401); An annular groove (1003) is formed on the end face of the rotating ring (801) opposite to the moving ring (401); An annular guide rail (1002) is inserted into the annular groove (1003) and fixed to the fixed block (1001).

8. A detection mechanism according to claim 6, characterized in that: The driving mechanism includes: A push plate (901) is fixed on the side wall of the rotating ring (801); A plurality of V-shaped grooves connected end to end are formed on the side wall of the push plate (901), and each V-shaped groove includes a first inclined groove (902) and a second inclined groove (903) connected end to end; A push pin (905) is inserted into the V-shaped groove and fixed to the fixed cylinder (301) through a support block (904).

9. The inspection mechanism according to claim 1, wherein: The moving mechanism includes: A fixed rod (502), and two support plates (501) are fixedly connected to both ends of the fixed rod (502); A threaded rod (503) is rotatably connected to the opposite side walls of the two support plates (501); A motor (504) is fixed on the side wall of one of the support plates (501), and the output end of the motor (504) is fixed to one end of the threaded rod (503); A moving block (505) is sleeved on the side wall of the fixed rod (502) and is threadedly connected to the threaded rod (503), and the moving block (505) is fixed to the side wall of the annular cover (201).

10. A pure water hydrogen production electrolytic cell with a detection mechanism, comprising two end plates (101) and a plurality of electrolysis units arranged on the electrolytic cell body, each of the electrolysis units comprising two bipolar plates (102) and gaskets (103), characterized in that: The pure water hydrogen production electrolytic cell further includes a detection mechanism as described in any one of claims 1-9. The detection mechanism can slide on the side wall of the bipolar plate (102) and detect the sealing performance of the gasket (103).

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