CN216349376U - Fast plug connector for leakage detection of galvanic pile and leakage detection equipment for galvanic pile - Google Patents

Abstract

The embodiment of the utility model provides a galvanic pile leakage detection quick connector and galvanic pile leakage detection equipment, and relates to the field of galvanic pile air tightness leakage detection structures. Aiming at improving the efficiency of detecting the air tightness of the galvanic pile. The fast plug connector for leakage detection of the galvanic pile comprises a sleeve, a locking sleeve, a movable clamping piece and a gas pipe connector; one end of the sleeve is used for inserting a power pile connector, and the other end of the sleeve is provided with a gas pipe connector; the peripheral wall of the sleeve is provided with a mounting hole, and the movable clamping piece is movably arranged in the mounting hole; the locking sleeve is movably sleeved on the periphery of the sleeve along the axial direction; the locking sleeve is used for pushing the movable clamping piece to abut against a pile connector inserted into the sleeve under the condition of a first position; or the locking sleeve is used for avoiding the movable clamping piece under the condition of the second position. The galvanic pile leakage detection equipment comprises a galvanic pile joint and a galvanic pile leakage detection quick-plugging joint. The pile connector can be inserted into the sleeve to perform leak detection test or extract the sleeve by operating the locking sleeve, the installation and the disassembly are convenient, and the efficiency of pile air tightness detection can be improved.

Description

Fast plug connector for leakage detection of galvanic pile and leakage detection equipment for galvanic pile

Technical Field

The utility model relates to the field of a galvanic pile air tightness leakage detecting structure, in particular to a galvanic pile leakage detecting quick connector and galvanic pile leakage detecting equipment.

Background

After the electric pile is packaged or when the electric pile is overhauled, the air tightness of the electric pile needs to be detected so as to ensure that the air tightness of each part of the electric pile is good. When the air tightness is detected, a galvanic pile joint and an air pipe are required to be connected, the air pipe generally adopts a hose, the inner diameter of the air pipe is slightly larger than the outer diameter of the galvanic pile joint, after the air pipe is connected with the galvanic pile joint, a hose hoop (iron wire) and the like are used for fastening the joint of the air pipe and the galvanic pile joint, a bolt on the hose hoop needs to be loosened before operation to avoid influencing connection, after connection, two steel wires of the hose hoop need to be arranged on two sides of a pagoda joint in a protruding mode, then the bolt is screwed, otherwise, the hose hoop cannot hoop the air pipe, and the air pipe is easy to break away under the action of test pressure. For the fuel cell stack, different cavities need to be measured for many times, and bolt tightening, loosening and air pipe plugging are frequently carried out, so that the mounting and testing efficiency is low; and accidents easily occur when the hose is frequently installed, such as the hose hoop bolt is not screwed down, the hose hoop fails to work, and the air pipe is separated from the plug under the action of pressure, so that safety accidents are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a quick plug for detecting the leakage of a galvanic pile, which can improve the efficiency of detecting the air tightness of the galvanic pile.

The utility model also aims to provide a galvanic pile leakage detection device which can improve the efficiency of galvanic pile air tightness detection.

Embodiments of the utility model may be implemented as follows:

the embodiment of the utility model provides a quick plug connector for leakage detection of a galvanic pile, which is used for being matched with the galvanic pile connector in a plugging and pulling manner, and comprises:

the locking device comprises a sleeve, a locking sleeve, a movable clamping piece and a gas pipe joint;

one end of the sleeve is used for inserting a pile connector, and the other end of the sleeve is provided with the air pipe connector which is used for communicating with the pile connector; the peripheral wall of the sleeve is provided with a mounting hole, and the movable clamping piece is movably arranged in the mounting hole;

the locking sleeve is movably sleeved on the periphery of the sleeve in the axial direction and is switched between a first position and a second position; the locking sleeve is used for pushing the movable clamping piece to abut against the pile connector inserted into the sleeve under the condition of the first position so as to prevent the pile connector from withdrawing from the sleeve; or the locking sleeve is used for avoiding the movable clamping piece under the condition of the second position, so that the movable clamping piece can avoid the pile connector inserted into the sleeve.

In addition, the quick plug for leak detection of the galvanic pile provided by the embodiment of the utility model can also have the following additional technical characteristics:

optionally, the stack leak detection quick connector further comprises a spring; the spring is arranged between the locking sleeve and the sleeve; the spring is used for driving the locking sleeve to move to the first position in the process of elastic recovery; the locking sleeve is used for compressing the spring under the action of external force and moving to the second position.

Optionally, a first limiting table and a second limiting table are respectively arranged at two ends of the sleeve, and the locking sleeve is located between the first limiting table and the second limiting table;

one end of the locking sleeve, which is close to the second limiting table, is provided with a limiting groove, and the spring is positioned in the limiting groove; one end of the spring is abutted against the side wall of the limiting groove, and the other end of the spring is abutted against the second limiting table.

Optionally, the limiting groove is arranged around the circumference of the locking sleeve for a circle; the spring is sleeved between the outer wall of the sleeve and the limiting groove.

Optionally, the second limiting table is provided with a screw hole;

one end of the air pipe joint is provided with a threaded pipe; the threaded pipe is connected with the threaded hole and is used for being communicated with the pile connector inserted into the sleeve.

Optionally, the locking sleeve is provided with a first step part and a second step part which are sequentially arranged along the axial direction; the first step part is used for abutting against the movable clamping piece under the condition of the first position so as to enable the movable clamping piece to abut against a pile joint inserted into the sleeve; the second step portion is used for avoiding the movable clamping piece under the condition of the second position.

Optionally, the first step portion encircles circumference setting a week of the lock sleeve, the second step portion encircles circumference setting a week of the lock sleeve, the internal diameter that first step portion corresponds is less than the internal diameter of second step portion.

Optionally, the stack leak detection quick connector further comprises a sealing ring; the sealing ring is arranged in the sleeve and is used for being connected with the galvanic pile connector inserted into the sleeve in a sealing mode.

Optionally, the movable fastener is spherical or polyhedral in shape.

The embodiment of the utility model also provides a galvanic pile leak detection device. The galvanic pile leakage detection equipment comprises a galvanic pile joint and a galvanic pile leakage detection quick-plugging joint; the electric pile joint is provided with an inclined plane part and a concave part; the inclined surface part is used for being in sliding fit with the movable clamping piece under the condition that the locking sleeve is in the second position so as to be inserted into the sleeve; the concave part is used for accommodating the movable clamping piece under the condition that the locking sleeve is at the first position.

The fast plug connector for detecting the electric pile leakage and the electric pile leakage detecting device have the advantages that:

the quick plug connector for leakage detection of the galvanic pile is used for being matched with the galvanic pile connector in a plugging and pulling manner. When the electric pile is installed, the locking sleeve is located at the second position, the movable clamping piece can avoid the electric pile plug, and the electric pile plug can be inserted into the sleeve; after the pile plug is inserted into the sleeve, the locking sleeve is located at the first position, the movable clamping piece supports against the pile connector under the action of the locking sleeve to prevent the pile connector from withdrawing from the sleeve, and at the moment, the pile connector is communicated with the air pipe connector to perform air tightness detection. Through the quick connector of galvanic pile leak hunting can with the quick plug of galvanic pile joint, convenient and fast is dismantled in the installation, and the installation effectiveness is high and be difficult for droing, can improve the efficiency that the galvanic pile gas tightness detected.

The leakage detecting device for the galvanic pile comprises a galvanic pile joint and a quick plug joint for the leakage detection of the galvanic pile. The efficiency of galvanic pile gas tightness detection can be improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a leak detection apparatus for a galvanic pile according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along A-A in FIG. 1 of a cell stack leak detection apparatus according to an embodiment of the present invention, with the locking collar in a first position;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a cross-sectional view taken along A-A in FIG. 1 with a locking collar in a second position in a leak detection apparatus for a cell stack according to an embodiment of the present invention;

FIG. 5 is a partial enlarged view of B in FIG. 4;

fig. 6 is a schematic structural diagram of a sleeve in the leak detection apparatus for a galvanic pile according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6;

fig. 8 is a schematic structural diagram of a locking sleeve in the leak detection apparatus for a galvanic pile according to an embodiment of the present invention;

fig. 9 is a sectional view taken along C-C in fig. 8.

Icon: 10-galvanic pile leakage detection equipment; 11-a stack connection; 12-a ramp portion; 13-a recess; 20-a fast plug for leakage detection of the galvanic pile; 100-a sleeve; 110-a first stop; 120-a cannula; 121-mounting holes; 130-a second stop; 131-screw holes; 200-a locking sleeve; 210-a second step; 220-a first step portion; 230-a limit groove; 300-movable clamping piece; 400-a spring; 500-air pipe joint; 510-a threaded pipe; 600-sealing ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the utility model is used, it is only for convenience of describing the present invention and simplifying the description, but it is not necessary to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, it should not be construed as limiting the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

The stack leak detection quick connector 20 provided in the present embodiment is described in detail below with reference to fig. 1 to 9.

Referring to fig. 1 to 5, an embodiment of the present invention provides a stack leak detection quick connector 20, configured to be plugged into and pulled out of a stack connector 11, where the stack leak detection quick connector 20 includes a sleeve 100, a locking sleeve 200, a movable clamping member 300, and a gas pipe connector 500; one end of the sleeve 100 is used for inserting the power stack connector 11, and the other end of the sleeve 100 is provided with a gas pipe connector 500 used for communicating with the power stack connector 11; the peripheral wall of the sleeve 100 is provided with a mounting hole 121, and the movable clamping piece 300 is movably arranged in the mounting hole 121; the locking sleeve 200 is movably sleeved on the periphery of the sleeve 100 along the axial direction and is switched between a first position and a second position; the locking sleeve 200 is used for pushing the movable clamp 300 to abut against the pile connector 11 inserted into the sleeve 100 under the condition of the first position so as to prevent the pile connector 11 from being withdrawn from the sleeve 100; or the locking sleeve 200 is used to avoid the movable jaw 300 in the case of the second position, so that the movable jaw 300 can avoid the stack contact 11 inserted into the sleeve 100.

Referring to fig. 6 and 7, the sleeve 100 is provided with a mounting hole 121, and the mounting hole 121 penetrates through the thickness of the sleeve 100. The movable clip 300 is movably disposed in the mounting hole 121, and the movable clip 300 can protrude relative to the inner wall and the outer wall of the sleeve 100, but the movable clip 300 cannot fall into the sleeve 100 from the mounting hole 121. Specifically, the number of the mounting holes 121 is plural, and the plural mounting holes are provided at intervals in the circumferential direction of the sleeve 100. The number of the movable clamping pieces 300 is multiple, and the plurality of movable clamping pieces 300 are arranged in one-to-one correspondence with the plurality of mounting holes 121.

In this embodiment, the movable clip 300 has a spherical or polyhedral shape. The movable clip 300 can be a round ball or a polyhedron, as long as the movable clip 300 can move freely in the mounting hole 121. In this embodiment, the mounting hole 121 is a circular hole, the movable clip 300 is spherical, and the diameter of the mounting hole 121 is smaller than that of the movable clip 300.

Referring to fig. 2 and 3, the stack connector 11 is locked with the stack leak detection quick connector 20. The left end of the sleeve 100 is inserted into the pile connector 11, and the right end of the sleeve 100 is provided with the air pipe connector 500. The locking sleeve 200 is located at the first position, the locking sleeve 200 pushes the movable clamping piece 300 to partially cross the mounting hole 121 to be close to the stack joint 11, and the movable clamping piece 300 protrudes relative to the inner wall of the sleeve 100 and abuts against the stack joint 11 to prevent the stack joint 11 from being withdrawn from the sleeve 100. The fixing of the pile joint 11 and the pile leakage detection quick-plugging joint 20 is realized, and the pile joint 11 is communicated with the gas pipe joint 500.

Referring to fig. 4 and 5, the stack connection 11 and the stack leak detection quick-connect connector 20 are in an active state. The lock sleeve 200 is located the second position, and the lock sleeve 200 can dodge movable fastener 300, no longer supports movable fastener 300, and movable fastener 300 can return to the outside of sleeve 100, and at the in-process that pile connects 11 and inserts or withdraw from sleeve 100, movable fastener 300 dodges pile and connects 11, guarantees that pile connects 11 and inserts smoothly or extracts sleeve 100.

Bearing the above, pile leak hunting quick connector 20 simple structure switches between primary importance and second place through the relative sleeve 100 of lock sleeve 200, can realize that pile connects 11 and pile leak hunting quick connector 20 pegs graft or break away from, and convenient to install and dismantle, and receiving supporting of movable fastener 300 when pegging graft and holding the effect and be difficult for taking place to drop, has improved the efficiency and the security that the gas tightness detected.

Referring to fig. 2 and 4, in the present embodiment, the stack leak detection quick connector 20 further includes a spring 400; the spring 400 is arranged between the locking sleeve 200 and the sleeve 100; the spring 400 is used for driving the locking sleeve 200 to move to the first position in the process of elastic recovery; the locking sleeve 200 serves to compress the spring 400 by an external force and moves to the second position.

To illustrate in the relative position of fig. 2, the locking sleeve 200 is moved to the left to the first position by the spring 400. Referring to the relative position of fig. 4, the locking sleeve 200 is forced by the external force to compress the spring 400 to move to the right to the second position.

Referring to fig. 2, 4 and 6, in the present embodiment, a first limiting table 110 and a second limiting table 130 are respectively disposed at two ends of the sleeve 100, and the locking sleeve 200 is located between the first limiting table 110 and the second limiting table 130; one end of the locking sleeve 200 close to the second limiting table 130 is provided with a limiting groove 230, and the spring 400 is positioned in the limiting groove 230; one end of the spring 400 abuts against the side wall of the limiting groove 230, and the other end of the spring 400 abuts against the second limiting table 130.

Referring to fig. 6, the sleeve 100 includes a first limiting table 110, a sleeve 120 and a second limiting table 130 arranged in sequence from left to right, and the sleeve 120 is provided with a mounting hole 121. During assembly, after the locking sleeve 200 is sleeved on the outer circumference of the sleeve 100, the two ends of the sleeve 100, the first limiting table 110 and the second limiting table 130 may be welded or bolted.

Referring to the relative position in fig. 2, the first position-limiting platform 110 is disposed at the left end of the sleeve 100, the second position-limiting platform 130 is disposed at the right end of the sleeve 100, the left end of the spring 400 abuts against the left end of the position-limiting groove 230 of the lock sleeve 200, the right end of the spring 400 abuts against the second position-limiting platform 130, the lock sleeve 200 moves leftwards under the pushing action of the elastic restoring force of the spring 400 until the left end of the lock sleeve 200 abuts against the first position-limiting platform 110, the lock sleeve 200 stops at the first position, and the lock sleeve 200 moves in place.

Referring to the relative position shown in fig. 4, the locking sleeve 200 is manually pressed to move the locking sleeve 200 to the right, and the left end of the limiting groove 230 abuts against the spring 400 to store elastic potential energy. With the locking sleeve 200 moved to the second position, the stack connector 11 can be inserted into or withdrawn from the left end of the sleeve 100 smoothly.

Referring again to fig. 2, in the present embodiment, the limiting groove 230 is disposed around the circumference of the locking sleeve 200; the spring 400 is sleeved between the outer wall of the sleeve 100 and the limiting groove 230.

The spring 400 is sleeved between the locking sleeve 200 and the sleeve 100, so that the elastic force can be uniformly distributed along the circumferential direction of the locking sleeve 200, and the locking sleeve 200 is ensured to accurately move to the first position and the second position.

Referring to fig. 2, 6 and 7, in the present embodiment, the second limiting table 130 is provided with a screw hole 131; one end of the air pipe joint 500 is provided with a threaded pipe 510; the threaded pipe 510 is connected with the threaded hole 131 for communication with the stack joint 11 inserted into the sleeve 100. The air pipe connector 500 is in threaded connection with the second limiting table 130, so that the air pipe connector is convenient to mount and dismount.

Referring to fig. 2 and 4, in the present embodiment, the locking sleeve 200 is provided with a first step portion 220 and a second step portion 210 which are sequentially arranged along the axial direction; the first step portion 220 is used for abutting against the movable clamping piece 300 under the condition of the first position so as to enable the movable clamping piece 300 to abut against the pile connector 11 inserted into the sleeve 100; the second step portion 210 is used to avoid the movable clip 300 in the case of the second position.

Referring to the relative positions in fig. 2, the second step portion 210, the first step portion 220, and the stopper groove 230 are sequentially arranged from left to right. Referring to fig. 4, the distance from the first step portion 220 to the mounting hole 121 is smaller than the distance from the second step portion 210 to the mounting hole 121, and when the locking sleeve 200 is located at the first position, the first step portion 220 contacts the movable jaw 300, so that the movable jaw 300 partially protrudes beyond the mounting hole 121 with respect to the inner wall of the sleeve 100 to abut against the stack contact 11.

Referring to fig. 4, when the locking sleeve 200 is located at the second position, the second step portion 210 contacts the movable jaw 300, and the movable jaw 300 can be retracted to the inner wall of the sleeve 100 to avoid the stack connector 11.

Referring to fig. 8 and 9, in the present embodiment, the first step portion 220 is disposed around the locking sleeve 200, the second step portion 210 is disposed around the locking sleeve 200, and the inner diameter of the first step portion 220 is smaller than that of the second step portion 210.

Referring again to fig. 4, in the present embodiment, the stack leak detection quick connector 20 further includes a sealing ring 600; a seal ring 600 is provided in the sleeve 100, the seal ring 600 being adapted to be sealingly connected to the stack connection 11 inserted into the sleeve 100.

After the stack joint 11 is inserted into the sleeve 100, the end of the stack joint 11 is in sealing contact with the end of the seal ring 600, so that gas can be prevented from overflowing, and the connection sealing performance between the stack joint 11 and the gas pipe joint 500 can be improved.

The quick plug 20 for leak detection of the galvanic pile provided by the embodiment at least has the following advantages:

the locking sleeve 200 is matched with the ball, so that the inner diameter of the sleeve 100 is changed, the pile joint 11 is conveniently inserted into or separated from the sleeve 100, the operation is convenient and quick, and the pulling and inserting actions can be completed in 3-5 seconds. The plugging can be completed by pressing the locking sleeve 200 to move axially, the operation is simple, and the disassembly is convenient. The processing is simple, the size can be changed, the pipe joint with different diameters can be suitable, and the application range is wide.

The sealing ring 600 is disposed in the sleeve 100 to enhance airtightness, and the sealability of the connection of the parts is ensured.

An embodiment of the utility model also provides a galvanic pile leak detection device 10. The galvanic pile leakage detection device 10 comprises a galvanic pile joint 11 and a galvanic pile leakage detection quick-plugging joint 20; the pile joint 11 is provided with an inclined plane part 12 and a concave part 13; the slope portion 12 is used for sliding fit with the movable catch 300 to insert the sleeve 100 when the lock sleeve 200 is in the second position; the recess 13 is used to receive the partial movable catch 300 with the locking sleeve 200 in the first position.

Referring to fig. 2 and 3, a recess 13 is formed between two adjacent inclined surface portions 12. The movable clip 300 is located in the recess 13 and abuts against the inclined surface 12 to prevent the stack connector 11 from exiting the sleeve 100.

Referring to fig. 4 and 5, when the locking sleeve 200 is located at the second position, the inclined surface 12 is slidably engaged with the movable clamping member 300, so that the stack connector 11 can be smoothly inserted into or withdrawn from the sleeve 100. The efficiency of galvanic pile gas tightness detection can be improved.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. The utility model provides a quick connector of galvanic pile leak hunting for with galvanic pile joint (11) plug cooperation, its characterized in that, the quick connector of galvanic pile leak hunting includes:

the air pipe connector comprises a sleeve (100), a locking sleeve (200), a movable clamping piece (300) and an air pipe connector (500);

one end of the sleeve (100) is used for inserting a power stack connector (11), and the other end of the sleeve (100) is provided with the air pipe connector (500) which is used for being communicated with the power stack connector (11); the peripheral wall of the sleeve (100) is provided with a mounting hole (121), and the movable clamping piece (300) is movably arranged in the mounting hole (121);

the locking sleeve (200) is movably sleeved on the periphery of the sleeve (100) along the axial direction and is switched between a first position and a second position; the locking sleeve (200) is used for pushing the movable clamp (300) to abut against a pile joint (11) inserted into the sleeve (100) under the condition of the first position so as to prevent the pile joint (11) from being withdrawn from the sleeve (100); or the locking sleeve (200) is used for avoiding the movable clamping piece (300) under the condition of the second position, so that the movable clamping piece (300) can avoid a pile joint (11) inserted into the sleeve (100).

2. The fast plug for leak detection of the galvanic pile as claimed in claim 1, wherein:

the quick plug connector for leakage detection of the galvanic pile further comprises a spring (400); the spring (400) is arranged between the locking sleeve (200) and the sleeve (100); the spring (400) is used for driving the locking sleeve (200) to move to the first position in the process of elastic recovery; the locking sleeve (200) is used for compressing the spring (400) under the action of external force and moving to the second position.

3. The fast plug for leak detection of the galvanic pile as claimed in claim 2, characterized in that:

a first limiting table (110) and a second limiting table (130) are respectively arranged at two ends of the sleeve (100), and the locking sleeve (200) is located between the first limiting table (110) and the second limiting table (130);

one end, close to the second limiting table (130), of the locking sleeve (200) is provided with a limiting groove (230), and the spring (400) is located in the limiting groove (230); one end of the spring (400) abuts against the side wall of the limiting groove (230), and the other end of the spring (400) abuts against the second limiting table (130).

4. The fast plug for leak detection of the galvanic pile as claimed in claim 3, wherein:

the limiting groove (230) is arranged around the circumference of the locking sleeve (200) for a circle; the spring (400) is sleeved between the outer wall of the sleeve (100) and the limiting groove (230).

5. The fast plug for leak detection of the galvanic pile as claimed in claim 3, wherein:

the second limiting table (130) is provided with a screw hole (131);

one end of the air pipe joint (500) is provided with a threaded pipe (510); the threaded pipe (510) is connected with the threaded hole (131) for communicating with a cell stack connector (11) inserted into the sleeve (100).

6. The quick plug for leak detection of the galvanic pile according to any one of claims 1 to 5, characterized in that:

the locking sleeve (200) is provided with a first step part (220) and a second step part (210) which are sequentially arranged along the axial direction; the first step part (220) is used for abutting against the movable clamping piece (300) under the condition of the first position so as to enable the movable clamping piece (300) to abut against a pile joint (11) inserted into the sleeve (100); the second step portion (210) is used for avoiding the movable catch (300) in the case of the second position.

7. The fast plug for leak detection of the galvanic pile according to claim 6, characterized in that:

first step portion (220) encircle the circumference of lock sleeve (200) sets up a week, second step portion (210) encircle the circumference of lock sleeve (200) sets up a week, the internal diameter that first step portion (220) correspond is less than the internal diameter of second step portion (210).

8. The quick plug for leak detection of the galvanic pile according to any one of claims 1 to 5, characterized in that:

the quick plug connector for leakage detection of the galvanic pile further comprises a sealing ring (600); the sealing ring (600) is arranged in the sleeve (100), and the sealing ring (600) is used for being connected with a galvanic pile joint (11) inserted into the sleeve (100) in a sealing mode.

9. The quick plug for leak detection of the galvanic pile according to any one of claims 1 to 5, characterized in that:

the movable clamping piece (300) is spherical or polyhedral.

10. A galvanic pile leak detection device is characterized in that:

the galvanic pile leak detection device comprises a galvanic pile connector (11) and the galvanic pile leak detection quick connector as claimed in any one of claims 1 to 9; the pile connector (11) is provided with an inclined plane part (12) and a concave part (13); the ramp portion (12) is adapted to slidingly engage the movable catch (300) for insertion into the sleeve (100) with the lock sleeve (200) in the second position; the recess (13) is used for accommodating the movable clamping piece (300) under the condition that the locking sleeve (200) is at the first position.

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