CN217356033U

CN217356033U - Connecting device with pipeline on-off detection function

Info

Publication number: CN217356033U
Application number: CN202221274421.XU
Authority: CN
Inventors: 徐�明; 曹树林; 李旭阳; 申太明; 万雄伟; 杨毅; 韩宗俊; 徐梓净
Original assignee: Chongqing Sulian Auto Parts Co ltd
Current assignee: Chongqing Sulian Auto Parts Co ltd
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-09-02
Anticipated expiration: 2032-05-24

Abstract

The utility model discloses a connecting device with pipeline break-make detects function, including inserting the casing that is equipped with the male plug the removable joint in one side of casing has the lock block, and the removable joint of opposite side has the installation shell, be equipped with the second sealing washer between installation shell and the casing one side activity in the installation shell is equipped with sliding block set's corresponding position department is equipped with the touch multitouch, and the opposite side in this installation shell is equipped with inserts a group, be equipped with first sealing washer between the corresponding position on sliding block set's the corresponding position and the casing. The utility model discloses set up installation shell and sliding block set, the male plug of being convenient for inserts transmission connecting circuit, and the spacing male plug of lock block improves connection stability, and the leakproofness in the installation shell is guaranteed to first sealing washer and second sealing washer, has improved the stability that the pipe connection detected.

Description

Connecting device with pipeline on-off detection function

Technical Field

The utility model relates to an automobile manufacturing field, in particular to connecting device with pipeline break-make detects function.

Background

At present, all branch pipelines of a new energy automobile and a fuel vehicle pipeline system are mainly connected by adopting detachable joints. However, under the working conditions of external vibration or severe working environment, the risk of disconnection or even falling of the joint and the pipeline is high, and when the conditions occur, the disconnection or even falling of the joint and the pipeline often cannot be found and processed in time, so that liquid or gas leakage is caused, and even very serious accidents are caused. The connecting device with the function of detecting the on-off state of the existing pipeline still has the defect of poor detection stability and risks of poor air tightness and even local leakage when the pipeline is communicated.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a connecting device that has pipeline break-make and detect function that can improve pipe connection detection stability.

The technical scheme of the utility model as follows:

a connecting device with a pipeline on-off detection function comprises a shell inserted with a male plug, a locking block is detachably clamped on one side of the shell, an installation shell is detachably clamped on the other side of the shell, a second sealing ring is arranged between the installation shell and the shell, a sliding block set is movably arranged on one side in the installation shell, a contact block is arranged at a corresponding position of the sliding block set, an insertion strip set is arranged on the other side in the installation shell, and a first sealing ring is arranged between the corresponding position of the sliding block set and the corresponding position on the shell; insert the male plug on the casing, the boss extrusion sliding block group that sets up on the male plug to make the circuit that the contact block butt inserted bar group formed the intercommunication, and the locking piece joint is fixed on the casing, and the corresponding position butt boss on the locking piece is spacing fixed.

By adopting the structure, the mounting shell is fixedly clamped with the shell, so that the mounting and dismounting are convenient, the second sealing ring is arranged between the mounting shell and the shell, and the first sealing ring arranged between the corresponding positions of the sliding block group and the shell prevents air and liquid from entering the mounting shell so as to avoid influencing the use efficiency of gas for vehicles; when the plug is used, the male plug is inserted into the shell, the boss arranged on the male plug extrudes the sliding block set, the contact block is abutted with the insertion strip set to form a communicated circuit, the locking block is clamped and fixed on the shell, and the boss is abutted and limited at the corresponding position on the locking block, so that the boss and the sliding block set are kept in a stable abutting state, and the stability of the circuit communication state is improved; when the male plug needs to be taken out, the locking block only needs to be unlocked, and the operation is convenient and fast.

In order to simplify the structure and facilitate the installation of the locking block, as the optimization, the middle part of the shell is provided with a jack for inserting a male plug, one side of the upper part of the outer side of the shell is symmetrically provided with two yielding holes, the other side of the upper part of the outer side of the shell is provided with two stopping holes communicated with the jack, one side of the shell corresponding to the positions of the stopping holes is symmetrically provided with two limiting blocks, limiting bosses are respectively arranged between the stopping holes and the limiting blocks at corresponding ends, the corresponding positions of the limiting bosses, the limiting blocks and the outer wall of the shell at the corresponding ends are encircled to form a limiting groove, and the lower part of the outer side of the shell is symmetrically provided with two guide grooves; the locking piece includes the block the lower part of block is equipped with two and stretches into the guide bar that corresponds in the end guide way, is equipped with the branch that two levels were stretched out on the upper portion of this block, two the symmetry is equipped with two and stretches into the gag lever post that corresponds in the end hole of stepping down between the branch, and the end that stretches out of two these branches all is equipped with the fixture block, two the fixture block sets up in opposite directions, and stretches into the hole that ends that corresponds the end, all is equipped with one section transition inclined plane on every this fixture block.

In order to reduce the installation clearance, improve installation stability, as preferred, two the end that stretches out of gag lever post all is equipped with the circular arc section with boss external diameter size looks adaptation, and when the male plug inserted the casing, the circular arc section position let the removal that is located the boss, press into the locking piece again, make the lower terminal surface of gag lever post spacing with the up end butt of boss.

In order to simplify the disassembly and assembly structure, preferably, the shell is further symmetrically provided with two fixed blocks, each fixed block is provided with two clamping holes, and a directional groove is formed between the two clamping holes; the position department that corresponds the card hole on the lateral wall of installation shell all is equipped with the inserted block, all is equipped with directional piece between two this inserted blocks that correspond the end, directional piece moves into directional groove to it is fixed to make the inserted block that corresponds the end and the mutual joint of card hole.

In order to reduce the dismounting resistance, preferably, each insert block is provided with an abdicating inclined surface.

In order to simplify the structure and facilitate the use, preferably, a connecting hole and a placing hole communicated with the jack are sequentially arranged on the position, corresponding to one side of the mounting shell, of the shell from bottom to top, a first movable sliding block matched with the placing hole in shape is arranged in the placing hole, and a first inclined plane is arranged at one end, extending into the placing hole, of the first movable sliding block; be equipped with the mounting hole on the installation shell, be equipped with the second in this mounting hole and move the slider the second moves the lower extreme of slider one side and has set firmly the feeler of "nearly" font, and the upper end is equipped with and moves the second inclined plane of slider butt with first, and this second moves the slider opposite side and is equipped with the connecting plate be equipped with the spliced pole that stretches out downwards on the connecting plate, be equipped with the pressure spring in the outside cover of this spliced pole the position department that corresponds the pressure spring on the installation shell is equipped with the kicking block, is equipped with the step recess on this kicking block, the up end of pressure spring and the lower terminal surface butt of connecting plate, the lower terminal surface of this pressure spring and the step face butt of step recess.

In order to simplify the structure, as preferred be equipped with the annular on the first movable sliding block, be equipped with first sealing washer at this annular endotheca, the lateral wall of first sealing washer and the pore wall laminating of placing the hole.

In order to prevent gas from leaking between the mounting shell and the object, preferably, a first mounting groove is formed around the mounting shell at a position corresponding to the orifice of the mounting hole, a second mounting groove is formed on the outer side wall of the shell at a position corresponding to the first mounting groove, the two mounting grooves form a closed cavity structure in a surrounding manner, and a second sealing ring with a matched shape is arranged in the cavity structure.

In order to simplify the structure and avoid installation interference, preferably, the installation shell is further provided with a connecting groove, the inserting strip group comprises a first inserting strip and a second inserting strip which are inserted into the installation shell, the inserting end of the first inserting strip extends into the connecting groove, the second inserting strip is provided with a first contact piece, a first opening is arranged on the hole wall of the installation hole corresponding to the first contact piece, one side of the first opening is provided with a second opening, a second contact piece is arranged in the second opening, and one end of the second contact piece also extends into the connecting groove; when the second movable sliding block moves downwards and drives the contact block to move in place, one side of the lower end of the contact block is abutted to the first contact piece, and the other side of the lower end of the contact block is abutted to the second contact piece.

Has the advantages that: the utility model discloses set up installation shell and sliding block set, the male plug of being convenient for inserts transmission connecting circuit, and the spacing male plug of lock block improves connection stability, and the leakproofness in the installation shell is guaranteed to first sealing washer and second sealing washer, has improved the stability that the pipe connection detected.

Drawings

Fig. 1 is an exploded view of the present invention.

Fig. 2 is a schematic structural diagram of the housing.

Fig. 3 is a view in the direction C of fig. 2.

Fig. 4 is a schematic structural diagram of the locking block.

Fig. 5 is a top view of fig. 4.

Fig. 6 is a schematic structural view of the mounting case.

Fig. 7 is a front view of fig. 6.

Fig. 8 is a bottom view of fig. 7.

Fig. 9 is a schematic view of the mounting structure of the slider group.

Fig. 10 is a bottom view of fig. 9.

Fig. 11 is a schematic view of the mounting structure of the blade group.

Fig. 12 is a schematic view of the installation structure of the present invention.

Fig. 13 is a view from direction a-a of fig. 12.

Fig. 14 is a use state diagram of the present invention.

Fig. 15 is a view from direction B-B of fig. 14.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 to 15, the utility model discloses a casing 1 that is inserted with the male plug one side of casing 1 is equipped with the locking piece, the middle part of casing 1 is equipped with the jack that is inserted with the male plug, one side symmetry on the upper portion of this casing 1 outside is equipped with two holes of stepping down 14, the other side is equipped with two hole 11 that ends that communicate with the jack, one side symmetry corresponding hole 11 position department is equipped with two stoppers 12 on this casing 1, it all is equipped with spacing boss 121 to correspond between hole 11 and the stopper 12 to end, the corresponding position of the corresponding boss 121, stopper 12 and the casing 1 outer wall of corresponding end encloses and forms a spacing groove, the lower part symmetry outside this casing 1 is equipped with two guide ways 13; the locking piece includes block 2 the lower part of block 2 is equipped with two and stretches into the guide bar 21 that corresponds in the end guide way 13, is equipped with the branch 22 that two levels were stretched out on the upper portion of this block 2, two the symmetry is equipped with two and stretches into the gag lever post 24 that corresponds in the end hole of stepping down 14 between the branch 22, and the end that stretches out of two this branch 22 all is equipped with fixture block 23, two fixture block 23 sets up in opposite directions, and stretches into the hole of stopping 11 that corresponds the end, all is equipped with one section transition inclined plane 231 on every this fixture block 23.

Two the end that stretches out of gag lever post 24 all is equipped with the circular arc section with boss 25 external diameter size looks adaptation, and when the male plug inserted casing 1, the circular arc section position let the removal that is located boss 25, press into the locking piece again, make the lower terminal surface of gag lever post 24 and the up end butt of boss 25 spacing.

The other side of the shell 1 is provided with a mounting shell 3, the shell 1 is also symmetrically provided with two fixed blocks 15, each fixed block 15 is provided with two clamping holes, and a directional groove 16 is arranged between the two clamping holes; all be equipped with inserted block 31, every on the lateral wall of installation shell 3 corresponding the position department in card hole all be equipped with on the inserted block 31 and let a slant 311, all be equipped with directional piece 32 between two these inserted blocks 31 of corresponding end, directional piece 32 moves into directional groove 16 to it is fixed to make the inserted block 31 and the mutual joint in card hole that correspond the end.

The mounting shell 3 is provided with a first mounting groove 71 around the orifice corresponding to the mounting hole, a second mounting groove 72 is arranged on the outer side wall of the shell 1 at the position corresponding to the first mounting groove 71, the two mounting grooves surround to form a closed cavity structure, and a second sealing ring 42 with a matched shape is arranged in the cavity structure.

A connecting hole 18 and a placing hole 17 communicated with the jack are sequentially arranged at the position, corresponding to one side of the mounting shell 3, on the shell 1 from bottom to top, a first movable sliding block 331 matched with the placing hole 17 in shape is arranged in the placing hole 17, a first inclined plane 341 is arranged at one end, extending into the placing hole 17, of the first movable sliding block 331, a ring groove is formed in the first movable sliding block 331, a first sealing ring 41 is sleeved in the ring groove, and the outer side wall of the first sealing ring 41 is attached to the hole wall of the placing hole 17; be equipped with the mounting hole on the installation shell 3, be equipped with the second in this mounting hole and move slider 332 the lower extreme that slider 332 one side was moved to the second has set firmly the feeler 4 of "nearly" font, and the upper end is equipped with the second inclined plane 342 with first slider 331 butt that moves, and this second moves slider 332 opposite side and is equipped with the connecting plate be equipped with downwardly extending's spliced pole 35 on the connecting plate, be equipped with pressure spring 36 in the outside cover of this spliced pole 35 the position department that corresponds pressure spring 36 on the installation shell 3 is equipped with kicking block 37, is equipped with the step recess on this kicking block 37, the up end of pressure spring 36 and the lower terminal surface butt of connecting plate, the lower terminal surface of this pressure spring 36 and the step face butt of step recess.

The mounting shell 3 is further provided with a connecting groove 38, the inserting bar group comprises a first inserting bar 51 and a second inserting bar 52 which are inserted into the mounting shell 3, an inserting end of the first inserting bar 51 extends into the connecting groove 38, the second inserting bar 52 is provided with a first contact piece 53, a first opening 61 is arranged on the hole wall of the mounting hole at a position corresponding to the first contact piece 53, a second opening 62 is arranged on one side of the first opening 61, a second contact piece 54 is arranged in the second opening 62, and one end of the second contact piece 54 also extends into the connecting groove 38; when the second movable slider 332 moves downward and drives the contact block 4 to move to the right position, one side of the lower end of the contact block 4 abuts against the first contact piece 53, and the other side abuts against the second contact piece 54.

Insert the male plug on casing 1, the boss 6 extrusion that sets up on the male plug first moves slider 331 and drives the second and move slider 332 to make contact block 4 and first contact 53 and second contact 54 butt form the circuit of intercommunication, and the locking piece joint is fixed on casing 1, and gag lever post 24 butt boss 25 is spacing fixed.

The utility model discloses a use method as follows:

as shown in fig. 1 to 8, when the assembly is assembled, the guide rod 21 on the locking block extends into the guide groove 13 on the housing 1, meanwhile, the limiting rod 24 extends into the abdicating hole 14, and the locking block 23 extends into the stopping hole 11; next, a first movable sliding block 331 sleeved with a first sealing ring 41 is placed in the placing hole 17 on the other side of the shell 1, a second movable sliding block 332 is placed in the mounting hole, a pressure spring 36 is sleeved on the connecting column 35, the upper end surface of the pressure spring 36 abuts against the lower end surface of the connecting plate, the lower end surface of the pressure spring 36 abuts against the step surface of the step groove on the supporting block 37, at the moment, a contact block 4 fixedly arranged at the lower end of the second movable sliding block 332 is positioned right above the first opening 61 and the second opening 62, namely, the contact block 4 is positioned right above the exposed positions of the first contact piece 53 and the second contact piece 54; finally, the second sealing ring 42 is placed in a cavity structure formed by the first mounting groove 71 and the second mounting groove 72 in a surrounding mode, the orientation block 32 is moved into the orientation groove 16, the insertion block 31 at the corresponding end and the clamping hole in the fixing block 15 are clamped and fixed with each other, and the mounting shell 3 is fixedly connected with the shell 1.

Before use, as shown in fig. 1, 9, 10 and 11, one end of the first insert 51 extends out of the mounting case 3, and the other end extends into the connecting groove 38; one end of the second inserting bar 52 extends out of the mounting shell 3, the other end of the second inserting bar is connected with a first contact piece 53 arranged in the mounting shell 3, and the first contact piece 53 is exposed at the position of the first opening 61; one end of the second contact piece 54 extends into the connecting groove 38, and the other end is exposed at the position of the second opening 62; one end of the first inserting strip 51 and one end of the second inserting strip 52 are respectively connected with the positive pole and the negative pole of the power supply, the connecting groove 38 is plugged into the corresponding accessory, namely, the other end of the first inserting strip 51 and the second contact piece 54 are respectively communicated with the positive pole and the negative pole of the accessory, and at the moment, the first contact piece 53 and the second contact piece 54 are not communicated, namely, the circuit is not communicated.

As shown in fig. 12 to 15, in use, the male plug is inserted into the housing 1, the lower end surface of the boss 25 abuts against the transition inclined surface 231, and the latch 23 is extruded out of the stop hole 11, in this process, one side of the boss 25 further presses the first inclined surface 341 on the first movable slider 331, the first movable slider 331 is pressed to the left and presses the second inclined surface 342 to drive the second movable slider 332 to move downwards and press the compression spring 36 at the same time, when the contact block 4 moves downwards to the right, one side of the lower end of the contact block 4 abuts against the first contact piece 53, the other side abuts against the second contact piece 54, and the circuit is communicated; meanwhile, the boss 25 is always abutted against the first movable slider 331 to keep the second movable slider 332 extruded, then the locking block is pressed in, the clamping block 23 moves into the limiting groove through the limiting boss 121, and the limiting block 12 is limited, the clamping block 23 is clamped and fixed in the limiting groove, at the moment, the limiting rod 24 moves above the boss 25, the lower end face of the limiting rod 24 is abutted against and limited by the upper end face of the boss 25, so that the boss 25 is kept in a stable abutted state with the first movable slider 331, and the stability of the circuit communication state is improved.

When the male plug needs to be taken out, the supporting rod 22 only needs to be pulled outwards, the clamping block 23 leaves the limiting groove, the block body 2 is pulled to move outwards, the clamping block 23 moves into the stop hole 11, the limiting rod 24 leaves the upper portion of the boss 25, the male plug is pulled upwards, the circuit is disconnected, then, under the action of the elastic force of the pressure spring 36, the second movable sliding block 332 is driven to move upwards, the first movable sliding block 331 is ejected rightwards to return to the position to be connected through the second inclined surface 342, and the operation is convenient and fast.

In the above process, because a sealing ring (as shown in fig. 1, not labeled) is conventionally arranged between the male plug and the housing 1, when the male plug is inserted, the up-down direction of the position shown in the figure is a sealing state, the boss 25 and the sealing ring on the male plug divide the inner cavity of the housing 1 into two parts, as shown in fig. 14, a second sealing ring 42 is arranged between the mounting shell 3 and the housing 1, which can prevent external air and liquid from entering and improve the air tightness of mounting; meanwhile, the upper part of the boss 25 is directly communicated with the outside air, the placing hole 17 is positioned above the boss 25, namely, the first sealing ring 41 is arranged between the first movable sliding block 331 and the placing hole 17 to prevent air and liquid from entering the mounting shell 3, so as to avoid influencing the use efficiency of the vehicle gas.

In addition, the first sealing ring 41 is arranged to be in interference fit with the placing hole 17, and on the premise that the sealing performance is not affected, the smooth movement of the first movable sliding block 331 is ensured, namely, the pressure spring 36 with proper elasticity is selected, and a proper clearance value of interference fit is set; the connecting hole 18 is mainly used for avoiding assembly interference and playing a role of space abdication, and in order to simplify the structure and ensure the sealing property, the connecting hole 18 is not communicated with the jack of the shell 1; because installation shell 3 and inserted block 31 are injection moulding integrated into one piece and make, the locking piece is also that plastic material makes, and the material of adoption is nylon 66, has certain elastic characteristic, and the inclined plane 311 of stepping down that sets up has not only reduced the resistance that inserted block 31 inserted the card hole, when taking off installation shell 3, can extrude inserted block 31 or directional block 32 position, and it warp to correspond the installation hole pore wall position department on messenger's installation shell 3, thereby makes inserted block 31 shift out the card hole and take off installation shell 3.

Claims

1. The utility model provides a connecting device with pipeline break-make detects function, is including inserting casing (1) that is equipped with the male plug, its characterized in that: a locking block is detachably clamped on one side of the shell (1), an installation shell (3) is detachably clamped on the other side of the shell, a second sealing ring (42) is arranged between the installation shell (3) and the shell (1), a sliding block set is movably arranged on one side in the installation shell (3), a contact block (4) is arranged at a corresponding position of the sliding block set, an insertion strip set is arranged on the other side in the installation shell (3), and a first sealing ring (41) is arranged between the corresponding position of the sliding block set and the corresponding position on the shell (1); insert the male plug on casing (1), boss (25) extrusion sliding block group that sets up on the male plug to make feeler block (4) butt cutting group form the circuit of intercommunication, and the locking piece joint is fixed on casing (1), and the corresponding position butt boss (25) on the locking piece is spacing fixed.

2. The connecting device with the pipeline on-off detection function according to claim 1, wherein: the middle part of the shell (1) is provided with a jack for inserting a male plug, one side of the upper part of the outer side of the shell (1) is symmetrically provided with two abdicating holes (14), the other side of the upper part of the outer side of the shell (1) is provided with two stopping holes (11) communicated with the jack, one side of the shell (1) corresponding to the positions of the stopping holes (11) is provided with a limiting block (12), a limiting boss (121) is arranged between the stopping holes (11) and the limiting block (12) at the corresponding end, the limiting boss (121) at the corresponding end, the limiting block (12) and the corresponding positions of the outer wall of the shell (1) are enclosed to form a limiting groove, and the lower part of the outer side of the shell (1) is symmetrically provided with two guide grooves (13); the locking piece includes block (2) the lower part of block (2) is equipped with two and stretches into guide bar (21) in corresponding end guide way (13), is equipped with branch (22) that two levels stretch out on the upper portion of this block (2), two the symmetry is equipped with two and stretches into gag lever post (24) in corresponding end abdicating hole (14) between branch (22), and the end that stretches out of two this branch (22) all is equipped with fixture block (23), two fixture block (23) set up in opposite directions, and stretch into the hole of stopping (11) of corresponding end, all is equipped with one section transition inclined plane (231) on every this fixture block (23).

3. The connecting device with the pipeline on-off detection function as claimed in claim 2, wherein: two the end that stretches out of gag lever post (24) all is equipped with the circular arc section with boss (25) external diameter size looks adaptation, and when the male plug inserted casing (1), the circular arc section position lets the removal that is located boss (25), presses into the locking piece again, makes the lower terminal surface of gag lever post (24) spacing with the up end butt of boss (25).

4. The connecting device with the pipeline on-off detection function according to claim 1, wherein: two fixing blocks (15) are symmetrically arranged on the shell (1), two clamping holes are formed in each fixing block (15), and a directional groove (16) is formed between the two clamping holes; the outer side wall of the mounting shell (3) is provided with inserting blocks (31) at positions corresponding to the clamping holes, orientation blocks (32) are arranged between the two inserting blocks (31) at corresponding ends, the orientation blocks (32) move into the orientation grooves (16), and the inserting blocks (31) at corresponding ends and the clamping holes are clamped and fixed with each other.

5. The connecting device with the pipeline on-off detection function according to claim 4, wherein: each plug block (31) is provided with a yielding inclined surface (311).

6. The connecting device with the pipeline on-off detection function according to claim 1, wherein: a connecting hole (18) and a placing hole (17) communicated with the jack are sequentially arranged on the position, corresponding to one side of the mounting shell (3), of the shell (1) from bottom to top, a first movable sliding block (331) matched with the placing hole in shape is arranged in the placing hole (17), and a first inclined plane (341) is arranged at one end, extending into the placing hole (17), of the first movable sliding block (331); be equipped with the mounting hole on installation shell (3), be equipped with the second in this mounting hole and move slider (332) the second moves the lower extreme of slider (332) one side and has set firmly feeler (4) of "nearly" font, and the upper end is equipped with and moves second inclined plane (342) of slider (331) butt, and this second moves slider (332) opposite side and is equipped with the connecting plate be equipped with spliced pole (35) that downwardly stretches out on the connecting plate, the outside cover of this spliced pole (35) is equipped with pressure spring (36) the position department that corresponds pressure spring (36) on installation shell (3) is equipped with kicker (37), is equipped with the step recess on this kicker (37), the up end of pressure spring (36) and the lower terminal surface butt of connecting plate, the lower terminal surface of this pressure spring (36) and the step face butt of step recess.

7. The connecting device with the pipeline on-off detection function according to claim 6, wherein: be equipped with the annular on first movable slider (331), be equipped with first sealing washer (41) at this annular endotheca, the lateral wall of first sealing washer (41) and the pore wall laminating of placing hole (17).

8. The connecting device with the pipeline on-off detection function according to claim 6, wherein: the drill way position that corresponds the mounting hole on installation shell (3) is around being equipped with first mounting groove (71) the position department that corresponds first mounting groove (71) on the lateral wall of casing (1) is equipped with second mounting groove (72), and two mounting grooves surround and form an inclosed cavity structure, are equipped with second sealing washer (42) of shape looks adaptation in this cavity structure.

9. The connecting device with the pipeline on-off detection function according to claim 6, wherein: the mounting shell (3) is further provided with a connecting groove (38), the inserting strip group comprises a first inserting strip (51) and a second inserting strip (52) which are inserted into the mounting shell (3), the inserting end of the first inserting strip (51) extends into the connecting groove (38), the second inserting strip (52) is provided with a first contact piece (53), a first opening (61) is formed in the hole wall of the mounting hole and corresponds to the first contact piece (53), a second opening (62) is formed in one side of the first opening (61), a second contact piece (54) is arranged in the second opening (62), and one end of the second contact piece (54) also extends into the connecting groove (38); when the second movable sliding block (332) moves downwards and drives the contact block (4) to move in place, one side of the lower end of the contact block (4) is abutted to the first contact piece (53), and the other side of the lower end of the contact block is abutted to the second contact piece (54).