CN216952148U - Quick-operation joint hasp structure and quick-operation joint thereof - Google Patents

Abstract

The utility model discloses a quick connector locking structure and a quick connector thereof, wherein the quick connector locking structure comprises a clamping block main body and a clamping block sleeve which is movably sleeved on the clamping block main body, a plurality of slotted holes are formed in the circumferential direction of the clamping block main body, a clamping block is arranged in each slotted hole, and the clamping block is limited to be locked or loosened through the clamping block sleeve. A quick coupling comprises the quick coupling lock catch structure in any one of the above technical solutions. The quick connector lock catch structure and the quick connector thereof have the advantages of good surface contact pressure resistance and long service life by the way that the clamping block is matched with the groove to lock the sub-body.

Description

Quick-operation joint hasp structure and quick-operation joint thereof

Technical Field

The utility model relates to the technical field of pipeline connection, in particular to a quick connector lock catch structure and a quick connector thereof.

Background

The existing quick connector connection technical scheme comprises a fixture block main body, a steel ball, a pushing sleeve and a fixture block sleeve, wherein a steel ball hole is formed in the fixture block main body, when a sub body is inserted, the outer circular surface of the pushing sleeve supports against the steel ball, the sub body pushes the pushing sleeve to move inwards, the pushing sleeve leaves the position of the steel ball, the steel ball enters a sub body groove, and the inner wall of the fixture block sleeve presses the steel ball, so that the sub body is locked on the fixture block main body. The structure is simple and the cost is low; however, the sub body is connected with the joint through the steel ball under stress, the steel ball is in point contact with the sub body groove, the steel ball hole and the inner wall of the clamping block sleeve, the stressed part and the stressed part are easy to damage and deform, the front end of the pushing sleeve is weak, the pushing sleeve is easy to damage in the process of collision and contact with the sub body and the steel ball, and the service life of a product is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a quick connector lock catch structure and a quick connector thereof.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: a quick connector locking structure comprises a clamping block main body and a clamping block sleeve, wherein the clamping block sleeve is movably sleeved on the clamping block main body, a plurality of slotted holes are formed in the circumferential direction of the clamping block main body, a clamping block is arranged in each slotted hole, and the clamping block is limited to be locked or loosened through the clamping block sleeve.

According to the technical scheme, when the sub body is inserted into the fixture block main body, the fixture block is pushed to move towards the inside along the axial direction of the fixture block main body, when the sub body is continuously pushed, the sub body is jacked up to enable the sub body groove to correspond to the fixture block, when the fixture block sleeve is reset, the inner wall of the fixture block sleeve tightly supports the fixture block, and the fixture block tightly supports the sub body groove to lock the sub body; when the daughter is detached, the fixture block sleeve is pushed forwards, the inner side of the fixture block sleeve stops abutting against the fixture block, the daughter can be pulled towards the outer end of the fixture block main body and the fixture block is opened, the fixture block sleeve is loosened after the daughter is pulled out, and the fixture block sleeve resets and enables the fixture block to reset.

Furthermore, the fixture block and the fixture block main body are in surface contact with the slot hole. When the daughter inserts, the fixture block is pushed to enable the inner side of the fixture block sleeve not to compress the fixture block, the fixture block has a space with radial motion, the elastic ring is propped open, when the daughter is continuously inserted and corresponds to the daughter groove, the elastic ring resets and buckles the fixture block in the daughter groove to lock the daughter, the fixture block and the groove hole are in surface contact when in contact during motion, when the daughter is inserted, the bottom of the fixture block is in surface contact with the daughter groove, the stress is uniform, and the pressure resistance is good.

Furthermore, the end part of the fixture block main body is provided with a ring groove along the axial direction, a plurality of slotted holes are arranged in the ring groove, and the fixture block is sleeved with an elastic ring. The clamping block can be firmly sleeved on the elastic ring by arranging the groove, so that the elastic ring is prevented from falling off. The elastic ring is arranged to stretch open the clamping block when the clamping block is pushed by the sub body, and the elastic ring provides elasticity to shrink and buckle the clamping block in the sub body groove to lock the sub body when the clamping block corresponds to the sub body groove; the fixture block can be reset through the elastic ring after the sub-body is pulled out.

Furthermore, one side surface of the clamping block is provided with a first inner inclined surface, the first inner inclined surface is in contact fit with the axial inclined surface of the slotted hole, and the other side surface of the clamping block is provided with a second inner inclined surface. When the sub-body is inserted to push the fixture block to move axially, the sub-body pushes the second inner inclined surface through the groove outer inclined surface to enable the fixture block to move inwards towards the fixture block main body axially, the first inner inclined surface of the fixture block is in contact with the axial inclined surface of the groove hole and continues to be attached tightly, the axial inclined surface jacks up the fixture block, and the fixture block moves along the radial direction of the fixture block main body.

Furthermore, the side part of the fixture block is provided with a first limiting surface, and the first limiting surface is in contact fit with a second limiting surface of the fixture block main body.

Furthermore, the fixture block is provided with a radial end face, and the radial end face is in contact fit with the radial inner wall of the slotted hole. When the daughter is pulled out, the daughter groove pulls the fixture block to move outwards in the axial direction, the groove inner inclined plane of the daughter groove supports and pushes the first inner inclined plane of the fixture block to jack the fixture block, and the radial end face of the fixture block is matched with the radial inner wall of the groove hole to move outwards in the radial direction, so that the daughter is loosened.

Furthermore, a compression convex ring is arranged on the inner side of the fixture block sleeve, and a front vacancy and a rear vacancy are formed on the front side and the rear side of the compression convex ring. When the clamping block is positioned in the front vacant position, the clamping block is inserted into the daughter and jacked to move in the radial direction; when the fixture block is positioned in the rear vacant position, the daughter is pulled out to jack the fixture block to move radially; the front vacant site and the rear vacant site are positioned at two sides of the pressing site, and the radial movement of the clamping block is led to ensure that the clamping block has a space moving outwards in the radial direction for supporting the clamping block for inserting and pulling out the sub-body.

In order to solve the technical problem, the utility model further provides a quick connector, which comprises the quick connector locking structure in any one of the technical schemes.

The joint comprises a joint main body and a joint clamping block, wherein the joint main body is connected with the clamping block main body, a valve core and a valve core spring are arranged in the joint main body, the valve core spring is arranged between the valve core and the inner end face of the joint main body, a positioning ring is assembled at the end part of the joint main body, a positioning opening is formed in a clamping block sleeve, and the clamping block sleeve can slide towards the direction of the joint main body when a lug positioning opening is formed in the joint main body and corresponds to a lug. When the positioning opening corresponds to the lug, the clamping block sleeve can slide towards the direction of the joint main body, the lock catch is loosened, and the sub-body can be pulled out.

Furthermore, the end face ring of the positioning ring is provided with positioning concave teeth, the end face of the joint main body is provided with positioning convex teeth, the positioning concave teeth are matched with the positioning convex teeth in a rotating and clamping mode, the inner wall of the fixture block sleeve is provided with an axial groove, the positioning ring is provided with an axial protrusion, the fixture block sleeve and the positioning ring are connected with the axial groove through the axial protrusion, and a lock catch spring is arranged between the fixture block sleeve joint main body. The fixture block sleeve drives the positioning ring to rotate, and the positioning ring is in clamping fit with the positioning convex teeth on the joint main body through the positioning concave teeth so as to fix the rotation of the fixture block sleeve and is used for locking and fixing the rotation angle of the fixture block sleeve.

Furthermore, the end part of the fixture block main body is provided with a sealing stop ring and a sealing piece, and the sealing stop ring and the sealing piece extend into the inner cavity of the joint main body to be matched and sealed with the valve core.

The utility model also obtains the following beneficial effects: the contact surface of the clamping block is designed to be in surface contact when the inclined surface is matched with the slotted hole of the clamping block and the groove of the sub-body, so that the clamping block is stressed uniformly, the pressure resistance is higher, the abrasion among the clamping block, the slotted hole and the sub-body is small, the use time is prolonged, and the operation of inserting and pulling out the sub-body is convenient; in use, the daughter can be prevented from being pulled out by mistake by rotating the daughter by an angle, the fixture block main body can be split, the processing is convenient, the cold heading processing technology can be used, the processing cost is reduced, and the safety and practicability are better.

Drawings

FIG. 1 is a schematic cross-sectional view of a locking structure of a quick connector according to the present invention;

FIG. 2 is a schematic view of an assembly structure of a locking structure of a quick connector according to the present invention;

FIG. 3 is a schematic view of a sub-body insertion structure of a locking structure of the quick connector according to the present invention;

FIG. 4 is a schematic diagram of a sub-body pulling-out structure of the locking structure of the quick connector according to the present invention;

FIG. 5 is a schematic structural diagram of a main body of a locking block of a quick connector locking structure according to the present invention;

FIG. 6 is a schematic structural view of a locking block sleeve of a locking structure of a quick connector according to the present invention;

FIG. 7 is a schematic view of an assembly structure of a locking block and an elastic ring of the locking structure of the quick connector according to the present invention;

FIG. 8 is a cross-sectional view of a sub-body of a quick connector locking structure of the present invention;

FIG. 9 is a schematic perspective view of a quick connector according to the present invention;

FIG. 10 is a schematic cross-sectional view of a quick connector of the present invention;

FIG. 11 is an exploded cross-sectional view of a quick connector of the present invention;

FIG. 12 is a schematic view of an exploded structure of a quick connector of the present invention;

FIG. 13 is a schematic view of a cartridge sleeve of the quick connector of the present invention;

FIG. 14 is a schematic view of a retaining ring of a quick connector according to the present invention;

fig. 15 is a schematic structural view of a joint body of a quick joint according to the present invention.

Description of reference numerals: 1 fixture block body, 1a annular groove, 10 slotted holes, 11 fixture block, 12 elastic ring, 101 second limiting surface, 102 axial inclined surface, 103 radial inner wall, 111 first inner inclined surface, 112 second inner inclined surface, 113 radial end surface, 114 first limiting surface, 115 groove, 2 fixture block sleeve, 21 compression convex ring, 22 front vacancy, 23 rear vacancy, 24 lock catch spring, 25 positioning opening, 26 axial groove, 3 sub body, 31 sub body groove, 32 groove outer inclined surface, 33 groove inner inclined surface, 4 joint body, 41 valve core, 42 valve core spring, 43 positioning ring, 44 lug, 45 positioning concave tooth, 46 positioning convex tooth, 47 sealing retaining ring, 48 sealing element, 49 axial bulge, 51 pushing sleeve and 52 pushing spring.

Detailed Description

The utility model is further described with reference to the following figures and detailed description.

As shown in fig. 1 to 8, a quick connector locking structure includes a locking block main body 1 and a locking block sleeve 2 movably sleeved on the locking block main body 1, a plurality of slots 10 are provided along the circumference of the locking block main body 1, a locking block 11 is provided in the slot 10, and locking or releasing of the locking block 11 is limited by the locking block sleeve 2.

The fixture block 11, the fixture block main body 1 and the slot 10 are in surface contact.

In this embodiment, the pushing sleeve 51 and the pushing spring 52 are disposed in the fixture block body 1, and in practical application, the sub-body 3 is inserted into the fixture block body 1, the pushing sleeve 51 is pushed, the pushing sleeve 52 is compressed by the pushing sleeve 51, and the pushing sleeve 51 has an outward elastic force, so that the sub-body groove 31 of the sub-body 3 is matched and clamped with the fixture block 11. At this time, when the latch sleeve 2 is reset, the inner side of the latch sleeve tightly abuts against the latch 11 to lock the sub-body 3. When the sub-body 3 is pulled out, the fixture block sleeve 2 can be pushed forwards, so that the protrusion on the inner wall stops extruding the fixture block 11, the pushing spring 52 pushes the pushing sleeve 51 outwards in the process of pulling out the sub-body 3, the fixture block 11 is supported by the abutting end at the end part of the pushing sleeve 31, and the sub-body 3 can be pulled out at the moment.

Referring to fig. 1 to 8, an annular groove 1a is axially formed at an end of the latch body 1, the plurality of slots 10 are formed in the annular groove 1a, and an elastic ring 12 is sleeved on the latch 11, wherein a groove 115 is formed on an outer side of the latch 11 and the elastic ring 12 is disposed in the groove 115 to allow the elastic ring 12 to be better sleeved on the latch 11.

The fixture block 11 can move along the axial direction of the fixture block main body 1, and the fixture block 11 is in surface contact with the slotted hole 10 during the movement.

One end of the fixture block 11 can extend out of the slot hole 10, the other end of the fixture block 11 opposite to the slot hole 10, and the inner wall of the fixture block sleeve 2 controls the fixture block 11 to be locked or unlocked.

One side surface of the latch 11 is provided with a first inner inclined surface 111, the first inner inclined surface 111 is in contact fit with the axial inclined surface 102 of the slot 10, and the other side surface of the latch 11 is provided with a second inner inclined surface 112. When the sub-body 3 is inserted, the groove outer slope 32 of the sub-body groove 31 pushes the second inner slope 112, and when the sub-body 3 is pulled out, the groove inner slope 33 of the sub-body groove 31 pushes the first inner slope 111.

The side of the latch 11 is provided with a first limiting surface 114, and the first limiting surface 114 is in contact fit with the second limiting surface 101 of the latch body 1.

The latch 11 has a radial end surface 113, and the radial end surface 113 is in contact fit with the radial inner wall 103 of the slot 10.

The inner side of the fixture block sleeve 2 is provided with a pressing convex ring 21, and a front vacancy 22 and a rear vacancy 23 are formed on the front side and the rear side of the pressing convex ring 21.

A lock catch spring 24 is arranged between the fixture block sleeve 2 and the fixture block main body 1.

In other embodiments, the fixture block 11 and the fixture block body 1 can be detached, the processing is convenient, the cold heading processing technology can be used, and the processing cost is reduced.

With further reference to fig. 1 to 15, a quick coupling includes the quick coupling locking structure of the above embodiment.

The quick connector further comprises a connector body 4, the connector body 4 is connected with the fixture block body 1, a valve core 41 and a valve core spring 42 are arranged in the connector body 4, the valve core spring 42 is arranged between the valve core 41 and the inner end face of the connector body 4, a positioning ring 43 is assembled at the end portion of the connector body 4, the fixture block sleeve 2 is provided with a positioning opening 25, and the fixture block sleeve 2 can slide towards the direction of the connector body 4 when the lug 44 positioning opening 25 is arranged on the connector body 4 and corresponds to the lug 44.

The end face ring of holding ring 43 is equipped with location concave tooth 45, and the terminal surface that connects main part 4 is equipped with location convex tooth 46, location concave tooth 45 with the rotatory chucking cooperation of location convex tooth 46, the inner wall of fixture block sleeve 2 is equipped with axial groove 26, is equipped with axial bulge 49 on the holding ring 43, fixture block sleeve 2 is connected with axial groove 26 through axial bulge 49 with holding ring 43, is equipped with hasp spring 24 between fixture block sleeve 2 connects main part 4.

The end part of the fixture body 1 is provided with a sealing stop ring 47 and a sealing piece 48, and the sealing stop ring 47 and the sealing piece 48 extend into the inner cavity of the connector body 4 to be matched and sealed with the valve core 41.

In the specific implementation of the utility model, the sub-body 3 is inserted into the fixture block body 1, the sub-body 3 is provided with the sub-body groove 31, the groove outer inclined surface 32 at the front end of the sub-body groove 31 is abutted against the second inner inclined surface 112 on the fixture block 11 and pushes the fixture block 11 to move inwards towards the axial direction of the fixture block body 1, and the top end of the fixture block 11 enters the front vacant position 22 after being separated from the pressing convex ring 21 on the inner side of the fixture block sleeve 2 in the moving process. The latch 11 continues to move forward, the first inner inclined surface 111 of the latch 11 contacts with the axial inclined surface 102 of the slot 10, and during the continuous movement of the latch 11, the axial inclined surface 102 jacks up the latch 11, so that the latch 11 simultaneously moves toward the radial direction of the latch body 1, when the latch 11 continues to be jacked up by the sub-body 3 to expand the elastic ring 12 into the front vacant position 22, the sub-body 3 continues to be inserted until the sub-body groove 31 corresponds to the latch 11, and the latch 11 resets through the elastic ring 12, and abuts against the sub-body 3 locked on the sub-body groove 31.

When the sub-body 3 needs to be pulled out, the fixture block sleeve 2 is pulled forwards, so that the pressing convex ring 21 is separated from the pressing fixture block 11, and the rear vacant position 23 corresponds to the fixture block 11. When the sub-body 3 is pulled out, the groove inner inclined surface 33 of the sub-body groove 31 abuts against and pushes the first inner inclined surface 111 on the fixture block 11, the radial end surface 113 of the fixture block 11 contacts with the radial inner wall 103 of the slot 10, the first inner inclined surface 111 is continuously pushed and pushed through the groove inner inclined surface 33, so that the fixture block 11 moves radially outwards, and when the sub-body groove 31 is separated from the fixture block 11 and is pulled out from the fixture block main body 1 when entering the rear vacant position 23. The elastic ring 12 resets the latch 11, releases the latch sleeve 2, and resets the latch sleeve through the latch spring 24.

In use, the fixture block sleeve 2 can be rotated by an angle, the positioning concave teeth 45 on the positioning ring 43 are meshed with the positioning convex teeth 46 on the joint main body 4, so that the rotation angle of the fixture block sleeve 2 can be locked, the positioning port 25 of the fixture block sleeve 2 in use does not correspond to the lug 44 on the joint main body 4, the fixture block sleeve 2 cannot slide towards the joint main body 4 at the moment, the fixture block 11 is locked and fastened on the stator body 3 through the compression protrusion 21, the sub-body 3 cannot be extracted by misoperation in use, and the fixture block sleeve has high safety and practicability.

In summary, the actual samples prepared according to the present invention and shown in the specification and drawings are tested for multiple uses, and from the results of the use tests, it is needless to say that the present invention can achieve the intended purpose and the practical value. The above-mentioned embodiments are only for convenience of illustration and not intended to limit the utility model in any way, and those skilled in the art will appreciate that the utility model is capable of being practiced by other than the specific embodiments, and that various modifications and equivalent arrangements can be made without departing from the spirit and scope of the utility model.

Claims (11)

1. The utility model provides a quick-operation joint hasp structure, includes that fixture block main part (1) and movable cover establish fixture block sleeve (2) on fixture block main part (1), its characterized in that: a plurality of groove holes (10) are formed in the circumferential direction of the fixture block main body (1), fixture blocks (11) are arranged in the groove holes (10), and locking or loosening of the fixture blocks (11) is limited through the fixture block sleeves (2).

2. The quick connector locking structure of claim 1, wherein: the fixture block (11) and the fixture block main body (1) are in surface contact with the slotted hole (10).

3. The quick connector locking structure of claim 2, wherein: the end part of the fixture block main body (1) is provided with an annular groove (1a) along the axial direction, a plurality of slotted holes (10) are arranged in the annular groove (1a), and an elastic ring (12) is sleeved outside the fixture block (11).

4. The quick connector locking structure according to claim 2 or 3, wherein: one side surface of the clamping block (11) is provided with a first inner inclined surface (111), the first inner inclined surface (111) is in contact fit with the axial inclined surface (102) of the slotted hole (10), and the other side surface of the clamping block (11) is provided with a second inner inclined surface (112).

5. The quick connector locking structure of claim 4, wherein: a first limiting surface (114) is arranged on the side portion of the clamping block (11), and the first limiting surface (114) is in contact fit with a second limiting surface (101) of the clamping block main body (1).

6. The quick connector locking structure of claim 5, wherein: the clamping block (11) is provided with a radial end surface (113), and the radial end surface (113) is in contact fit with the radial inner wall (103) of the slot hole (10).

7. The quick connector locking structure of claim 3, wherein: a pressing convex ring (21) is arranged on the inner side of the clamping block sleeve (2), and a front vacancy (22) and a rear vacancy (23) are formed on the front side and the rear side of the pressing convex ring (21).

8. A quick coupling, its characterized in that: comprising the quick connector locking structure of any one of the preceding claims 1 to 7.

9. The quick connector of claim 8, wherein: the fixture block sleeve is characterized by further comprising a joint main body (4), the joint main body (4) is connected with the fixture block main body (1), a valve core (41) and a valve core spring (42) are arranged in the joint main body (4), the valve core spring (42) is arranged between the valve core (41) and the inner end face of the joint main body (4), a positioning ring (43) is assembled at the end portion of the joint main body (4), the fixture block sleeve (2) is provided with a positioning opening (25), a lug (44) is arranged on the joint main body (4), and the fixture block sleeve (2) can slide towards the direction of the joint main body (4) when the positioning opening (25) corresponds to the lug (44).

10. The quick connector of claim 9, wherein: the terminal surface ring of holding ring (43) is equipped with location concave tooth (45), and the terminal surface that connects main part (4) is equipped with location dogtooth (46), location concave tooth (45) and the rotatory chucking cooperation of location dogtooth (46), the inner wall of fixture block sleeve (2) is equipped with axial groove (26), is equipped with axial bulge (49) on holding ring (43), and fixture block sleeve (2) are connected with axial groove (26) through axial bulge (49) with holding ring (43), are equipped with hasp spring (24) between fixture block sleeve (2) joint main part (4).

11. The quick connector of claim 10, wherein: the end part of the fixture block main body (1) is provided with a sealing stop ring (47) and a sealing piece (48), and the sealing stop ring (47) and the sealing piece (48) extend into the inner cavity of the joint main body (4) to be matched and sealed with the valve core (41).

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