CN218510391U - Connecting joint - Google Patents

Abstract

The utility model relates to a connection joint for connecting a matching joint and a connecting pipe; the connecting joint comprises a joint main body and a lock spring, wherein the joint main body is provided with a slot, and the lock spring can be inserted into the joint main body through the slot so as to lock the matching joint to the joint main body; wherein, the joint main part is equipped with on the cell wall of slot and keeps off the platform, keeps off the platform and has first terminal surface and second terminal surface, first terminal surface and second terminal surface separated in keeping off the relative both sides of platform, the locking spring includes elasticity slat, locking piece and supports the ejector pad, and the cooperation connects the in-process that inserts to the joint main part, the cooperation connects and can act on and support the ejector pad to order about the locking piece through the elastic deformation of elasticity slat and move to second terminal surface position by the first terminal surface that keeps off the platform, in order to realize locking the locking spring to connecting on the main part. The utility model discloses a joint can realize targetting in place with the assembly of cooperation joint, not only assembly operation is simple and convenient, has also improved the structural stability after both assemble moreover.

Description

Connecting joint

Technical Field

The utility model belongs to the technical field of refrigerant pipe connects is relevant, especially relates to a attach fitting.

Background

The upper joint of the box body is generally connected and communicated with the connecting pipe through the connecting joint, wherein the assembly between the connecting joint and the joint is required to have a self-locking function so as to prevent the connecting joint and the joint from being separated from each other under the influence of vibration and the like.

At present, the existing connecting joint is usually inserted with a locking spring, and the locking of the joint to the connecting joint is realized by the cooperation between the locking spring and a retaining ring on the joint. However, the existing connecting joint is complex in structure, one-time assembly cannot be achieved, the stability of the lock spring butt joint is not high when the connecting joint is locked after assembly, and a worker can easily disassemble the connecting joint and the connecting joint in the operation process.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a connection joint for solving the above technical problems.

A connection joint for connecting a mating joint and a connection pipe; the connecting joint comprises a joint main body and a lock spring, wherein a slot is formed in the joint main body, and the lock spring can be inserted into the joint main body through the slot so as to lock the matching joint to the joint main body;

the connector main body is provided with a baffle table on the groove wall of the slot, the baffle table is provided with a first end surface and a second end surface, the first end surface and the second end surface are respectively arranged at two opposite sides of the baffle table, and the first end surface and the inner peripheral wall of the connector main body are arranged on the same plane;

the lock spring comprises an elastic strip plate, a lock block and a pushing block, the lock block and the pushing block are arranged on the elastic strip plate, and the lock spring can drive the lock block to be attached to the inner peripheral wall and inserted into the slot until the lock block abuts against the first end face of the blocking platform; the abutting and pushing block is provided with an abutting and pushing inclined surface, the matching connector can push the abutting and pushing block through the abutting and pushing inclined surface, and the abutting and pushing block can drive the locking block to move to the position of the second end face on the blocking platform by utilizing the elastic deformation of the elastic ribbon board so as to lock the lock spring to the connector main body.

In this application, through the reasonable structure setting of above-mentioned, when making this attach fitting and the cooperation joint peg graft the cooperation, the cooperation connects and can act on the elasticity slat to support the ejector pad, utilize the structural feature of elasticity slat elastic deformation, order about the locking piece by supporting the first terminal surface that supports and keep off the platform and move to and keep off the second terminal surface of platform and carry out the butt cooperation, with this realization with the locking of locking spring in the joint main part, can realize like this that the assembly that attach fitting and cooperation connect between targets in place, at this in-process, need not with the help of outside instrument or manual assembly once more, make this attach fitting be convenient for with the cooperation joint assembly, and improved this attach fitting and the both stability of assembling back overall structure of cooperation joint.

In one embodiment, the blocking platform is provided with a guide inclined surface, the locking block is provided with a guide matching surface used for matching with the guide inclined surface, and the locking block is guided by the matching between the guide inclined surface and the guide matching surface to move to the position of the second end surface on the blocking platform.

It can be understood that, through the structure setting of the guiding matching surface on the guiding inclined plane and the locking piece on the baffle table, the elastic strip plate can play a guiding role in the process of elastic deformation resetting to ensure that the locking piece can move to the position of the second end face of the baffle table under the driving of the elastic strip plate, and the locking between the locking piece and the baffle table is realized.

In one embodiment, the elastic strip plate is provided with a convex block, the convex block is provided with an abutting surface, and the abutting surface is arranged in a manner of being abutted against the inner peripheral wall so as to guide the elastic deformation of the elastic strip plate driven by the abutting pushing block.

It can be understood that, through the structural arrangement of above-mentioned lug for elastic deformation that the elastic ribbon board received the drive of propping the ejector pad and takes place plays the guide effect, guarantees that this elastic ribbon board can drive the locking piece and break away from the position that the second terminal surface place that keeps off the platform was moved to the first terminal surface on keeping off the platform.

In one embodiment, the bolt further comprises a guide stop, and the bolt is capable of acting on the mating connector through the guide stop to lock the mating connector to the connector body;

the connector body is provided with a sliding groove used for being matched with the guide baffle, and the lock spring is guided to be inserted into the slot of the connector body by taking the matching between the guide baffle and the sliding groove as a guide.

It can be understood that through the structural arrangement of above-mentioned direction baffle to this concrete realization this locking spring locks the cooperation joint of inserting in the joint main part, and the cooperation between accessible direction baffle and the spout, plays the effect of direction to the in-process that the locking spring inserted to the joint main part, with the user demand of satisfying with locking spring cartridge to connecting on the main part.

In one embodiment, the elastic strip plate is further provided with a boss, and the boss can be clamped on the groove wall of the slot to limit the locking spring to be separated from the connector main body.

It can be understood that through the structural arrangement of above-mentioned boss, can play the spacing effect of preventing breaking away to the locking spring of pre-installation to connecting the main part for this attach fitting can wholly supply the material to the outside, so that subsequent packing and transportation have reduce cost's effect.

In one embodiment, a fixing ring is detachably mounted on the joint main body; the fixing ring is provided with a connecting rib, and the lock spring can drive the locking block to abut against the connecting rib through the elastic strip plate so as to limit the lock spring to be continuously inserted into the joint main body.

It can be understood that, through the structural arrangement of the connecting ribs on the fixing ring, the limiting function of preventing excessive insertion can be achieved for the locking spring preassembled on the joint main body, namely, the determination of the assembling position between the locking spring and the joint main body is achieved, and the use requirements of the follow-up integral packaging and transportation of the connecting joint are met.

In one embodiment, a fool-proof piece is arranged on the fixing ring, a fool-proof matching piece used for matching the fool-proof piece is arranged on the joint main body, and the fixing ring can be installed in the joint main body by taking the matching between the fool-proof piece and the fool-proof matching piece as a reference standard.

It can be understood that through the above-mentioned structure setting of preventing slow-witted piece and preventing slow-witted fitting piece to play the effect of preventing slow-witted to the assembly of retainer plate in connecting the main part, so that install this retainer plate in connecting the main part.

In one embodiment, a convex buckle is arranged on the peripheral wall of the fixing ring, a buckle groove used for matching with the convex buckle is formed in the joint main body, and the fixing ring can be clamped in the joint main body through the matching between the convex buckle and the buckle groove.

It can be understood that, through the structural arrangement of the convex buckle and the buckle groove, the assembly connection between the fixing ring and the joint main body is realized, so that the fixing ring is installed on the joint main body conveniently.

In one embodiment, the elastic strip plate is provided with a plurality of protruding thorns, and the plurality of protruding thorns are sequentially arranged on one side end face of the elastic strip plate at intervals along the direction of inserting the lock spring into the joint main body.

It can be understood that through the structural arrangement of the convex thorns, the stabbing pain effect on the fingers when the convex thorns are contacted with the fingers is utilized, so that the function of restraining workers can be achieved, and the structural stability of the connecting joint and the matching joint after assembly is ensured.

In one embodiment, the connection joint further includes a first sealing ring, a spacer ring, and a second sealing ring, the first sealing ring, the spacer ring, and the second sealing ring are sequentially embedded in the joint body, and the mating joint can mate with the joint body and simultaneously press the first sealing ring and the second sealing ring to deform.

It can be understood that through the structural arrangement of the first sealing ring, the spacing ring and the second sealing ring, when the connecting joint is in splicing fit with the matching joint, a double-sealing effect can be achieved, and the use requirement of assembly sealing between the connecting joint and the matching joint is met.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is an exploded view of a coupling fitting, a mating fitting and a connecting tube as provided herein;

FIG. 2 is an enlarged view of the portion P in FIG. 1;

FIG. 3 is an exploded view of a connection joint provided herein;

FIGS. 4, 5 and 6 are schematic views of the connector body of the present application from different perspectives;

FIGS. 7 and 8 are schematic views of different views of the bolts of the present application;

fig. 9 and 10 are schematic structural diagrams of the fixing ring in different viewing angles in the present application.

Reference numerals: 100. connecting a joint; 10. a connector body; 101. an inner peripheral wall; 11. a slot; 111. a trench wall; 12. blocking the platform; 121. a first end face; 122. a second end face; 123. a guide slope; 13. a chute; 14. a fool-proof mating piece; 141. a rib is protruded; 15. buckling grooves; 16. a step surface; 17. a first limit boss; 18. a second limit boss; 20. a locking spring; 21. an elastic ribbon board; 211. convex thorns; 22. a locking block; 221. a guiding mating surface; 23. pushing the block; 231. pushing the inclined plane; 24. a bump; 241. an abutting surface; 25. a guide baffle plate; 26. a boss; 27. a limit baffle; 271. an unlocking groove; 30. a fixed ring; 301. an outer peripheral wall; 31. connecting ribs; 32. a fool-proof piece; 321. a strip groove; 33. a convex buckle; 40. a first seal ring; 50. a spacer ring; 51. a limiting step; 60. a second seal ring; 70. a third seal ring; 200. a mating joint; 210. a convex ring; 300. and (4) connecting the pipes.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the connection joint 100 claimed in the present application is used to connect a mating joint 200 and a connection pipe 300, it should be noted that the mating joint 200 and the connection joint 100 of the present application may be configured as a matched male joint and a matched female joint according to a use requirement, wherein the mating joint 200 is specifically installed on a tank (not shown) containing liquid, and the connection pipe 300 may be configured as a hose.

As shown in fig. 3, a connection joint 100 according to an embodiment of the present disclosure includes a joint body 10, a locking spring 20, a fixing ring 30, a first sealing ring 40, a spacer ring 50, and a second sealing ring 60.

As shown in fig. 4 to 8, the connector main body 10 is opened with a slot 11, and the lock spring 20 can be inserted into the connector main body 10 through the slot 11 to lock the mating connector 200 to the connector main body 10. That is, the connection terminal 100 of the present application specifically locks the mating terminal 200 inserted into the terminal body 10 with the lock spring 20. The direction in which the lock spring 20 is inserted into the slot 11 of the connector body 10 is perpendicular to the direction in which the mating connector 200 is inserted into the connecting connector 100 when the mating connector 100 is assembled with the connecting connector 100.

In this application, the connector body 10 is provided with a stopper 12 on the groove wall 111 of the insertion groove 11, the stopper 12 has a first end surface 121 and a second end surface 122, the first end surface 121 and the second end surface 122 are respectively located at two sides of the stopper 12, wherein the first end surface 121 and the inner peripheral wall 101 of the connector body 10 are located on the same plane; the locking spring 20 comprises an elastic strip plate 21, a locking block 22 and a pushing block 23 are arranged on the elastic strip plate 21, and the locking spring 20 can drive the locking block 22 to be attached to the inner peripheral wall 101 and inserted into the slot 11 until the locking block 22 abuts against the first end surface 121 of the blocking platform 12; the abutting inclined surface 231 is disposed on the abutting block 23, the mating connector 200 can push the abutting block 23 through the abutting inclined surface 231, and the abutting block 23 can drive the locking block 22 to move to the position of the second end surface 122 on the stopping platform 12 by using the elastic deformation of the elastic strip 21, so as to lock the locking spring 20 to the connector body 10. That is to say, when the connector 100 of the present application is plugged and mated with the mating connector 200, the inserted mating connector 200 can act on the abutting inclined surface 231 of the abutting block 23 of the locking spring 20, and by using the elastic deformation structural characteristics of the elastic strip 21, the locking block 22 is driven to move from abutting against the first end surface 121 of the stopper 12 to abutting and mating with the second end surface 122 of the stopper 12, so as to lock the locking spring 20 on the connector body 10, and further lock the mating connector 200 inserted into the connector 100.

It can be understood that the number of the elastic strips 21 on the lock spring 20 of the present application is two, and each elastic strip 21 is provided with a locking block 22 and a pushing block 23; the upper stop 12 and the locking block 22 of the connector body 10 are arranged in a one-to-one correspondence to meet the use requirement of the bolt 20 assembled on the connector body 10.

It should be noted that, the outer wall of the mating connector 200 is provided with the protruding ring 210, and the mating connector 200 can push the abutting inclined plane 231 on the abutting block 23 by using the protruding ring 210, and by using the inclined plane structure characteristic of the abutting inclined plane 231, when the protruding ring 210 on the mating connector 200 starts to push the abutting inclined plane 231 on the abutting block 23, because the lock block 22 on the elastic strip plate 21 is attached to the inner peripheral wall 101 of the connector main body 10, the abutting block 23 can only drive the elastic strip plate 21 to deform towards the insertion direction of the mating connector 200, that is, the lock block 22 is driven to attach to the first end surface 121 of the blocking platform 12 to move; when the locking block 22 is disengaged from the first end surface 121, the elastic restoring force generated by the elastic deformation of the elastic strip plate 21 is applied to limit the elastic strip plate 21 to continue to deform toward the insertion direction of the mating connector 200, so that when the convex ring 210 on the mating connector 200 continues to push the pushing block 23 to push the pushing inclined surface 231, the elastic strip plate 21 expands outward toward the inner peripheral wall 101 of the connector body 10, i.e., the locking block 22 is driven to move to the position of the second end surface 122 of the stopping table 12, and the pushing inclined surface 231 on the pushing block 23 is disengaged from the pushing of the convex ring 210 on the mating connector 200; finally, due to the elastic reset of the elastic strip 21, the locking piece can be driven to move along the second end surface 122 of the stopper 12 toward the opposite direction of the insertion direction of the mating connector 200, and the abutting engagement between the locking piece 22 and the stopper 12 is realized, that is, the connector body 10 locks the locking spring 20 through the abutting engagement between the stopper 12 and the locking piece 22. Of course, during the process of inserting the bolt 20 into the slot 11 of the connector body 10, the two elastic strips 21 of the bolt 20 are pressed together, so that the locking piece 22 of the bolt 20 is always attached to the inner peripheral wall 101 of the connector body 10 during the process of inserting the bolt 20 into the connector body 10.

The guide inclined plane 123 is arranged on the blocking platform 12, the guide matching surface 221 used for being matched with the guide inclined plane 123 is arranged on the locking block 22, and the locking block 22 is guided by the matching between the guide inclined plane 123 and the guide matching surface 221 to move to the position of the second end face 122 on the blocking platform 12. Therefore, the elastic strip plate 21 can guide the moving direction of the locking piece 22 in the process of elastic deformation resetting, so as to ensure that the locking piece 22 can move to the position of the second end surface 122 of the baffle table 12 under the driving of the elastic strip plate 21, and realize the locking between the locking piece 22 and the baffle table 12

The utility model provides a be equipped with lug 24 on the elasticity slat 21, lug 24 has butt face 241, and butt face 241 laminates in the setting of internal perisporium 101 to the elastic deformation that the butt ejector pad 23 ordered elasticity slat 21 leads. That is to say, in the process of inserting the lock spring 20 into the connector main body 10, the lock block 22 and the protrusion 24 on the elastic strip plate 21 are simultaneously attached to the inner peripheral wall 101, and when the elastic strip plate 21 is initially driven by the pushing block 23 to be elastically deformed, the abutting surface 241 on the protrusion 24 is still attached to the inner peripheral wall 101, so that the guiding effect can be achieved, and it is ensured that the elastic strip plate 21 can drive the lock block 22 to be separated from the first end surface 121 on the retaining platform 12 and move to the position of the second end surface 122 of the retaining platform 12.

The lock spring 20 of the present application further includes a guide baffle 25, and the lock spring 20 can act on the mating connector 200 through the guide baffle 25 to lock the mating connector 200 to the connector body 10, thereby specifically realizing the locking of the lock spring 20 to the mating connector 200 inserted into the connector body 10.

The joint main body 10 is provided with a sliding groove 13 for matching with the guide baffle 25, and the lock spring 20 is guided to be inserted into the slot 11 of the joint main body 10 by taking the fit between the guide baffle 25 and the sliding groove 13 as a guide, so that the lock spring 20 can be conveniently preassembled on the joint main body 10, and the use requirement of inserting the lock spring 20 on the joint main body 10 can be met.

The elastic ribbon board 21 of the application is further provided with a boss 26, the boss 26 can be clamped on the groove wall 111 of the slot 11 to limit the separation of the lock spring 20 from the connector main body 10, so that when the lock spring 20 is preassembled on the connector main body 10, the lock spring 20 can be prevented from being separated from the connector main body 10 by utilizing the clamping between the boss 26 and the groove wall 111 of the slot 11, and the connection connector 100 can integrally supply materials outwards, so that the subsequent packaging and transportation are facilitated, and the effect of reducing the cost is achieved.

The utility model provides an be equipped with a plurality of protruding thorn 211 on the elasticity slat 21, a plurality of protruding thorn 211 set up on elasticity slat 21 along the bolt 20 insertingly connect the interior side end face of direction of main part 10 at intervals in proper order on, can utilize the stinging effect that produces the finger when protruding thorn 211 contacts with the finger like this, can play restraint workman's effect like this to this ensures that this attach fitting 100 and cooperation connect 200 both post-assembly structural stability.

In addition, the lock spring 20 of the present application is further provided with a limiting baffle 27, and the limiting baffle 27 can abut against the joint main body 10 to limit the lock spring 20 to be continuously inserted into the joint main body 10, so that on the basis of meeting the requirement that the lock spring 20 is assembled on the joint main body 10, when a person unlocks the connection joint 100 and the mating joint 200, the unlocking of the lock spring 20 on the joint main body 10 can be realized by using an unlocking tool to raise the limiting baffle 27.

Wherein, the unlocking groove 271 has been seted up on the limit baffle 27 of this application to supply the unblock instrument to insert to the position at this unlocking groove 271 place, and realize raising and warping limit baffle 27, have like this and be convenient for the unblock after assembling in place completely this attach fitting 100 with cooperation joint 200. It should be noted that, the unlocking tool may be configured to have a flat head, and the flat head can be inserted into the unlocking groove 271.

As shown in fig. 9 and 10, the fixing ring 30 of the present application is provided with a connecting rib 31, the locking spring 20 can drive the locking block 22 to abut against the connecting rib 31 through the elastic strip 21 to limit the locking spring 20 from being continuously inserted into the connector body 10, so that the locking spring 20 pre-installed on the connector body 10 can be limited to prevent excessive insertion, that is, the assembly position between the locking spring 20 and the connector body 10 can be determined, so as to meet the subsequent use requirement of integral packaging and transportation of the connector 100. It should be noted that, the fixing ring 30 of the present application is provided with a clearance structure (not shown) for avoiding the insertion of the lock spring 20 into the joint main body 10, so as to meet the use requirement that the lock spring 20 can be inserted into the joint main body 10.

Wherein, be equipped with on the retainer plate 30 of this application and prevent slow-witted 32, be equipped with on the joint main part 10 and be used for matcing the slow-witted fitting piece 14 of preventing slow-witted 32, the retainer plate 30 can regard as the reference standard to install to the joint main part 10 with the cooperation of preventing slow-witted 32 and preventing between the slow-witted fitting piece 14 in, can play the effect of preventing slow-witted to the assembly of retainer plate 30 on connecting the main part 10 like this to in installing this retainer plate 30 to the joint main part 10. It should be noted that, the assembly of the fixing ring 30 on the joint main body 10 plays a fool-proof role, and specifically, the assembly position of the fixing ring 30 on the joint main body 10 is precisely positioned.

Specifically, this application prevent slow-witted 32 specifically sets up the strip groove 321 that sets up to set up on retainer plate 30 periphery wall 301, prevents slow-witted fitting 14 and sets up the protruding muscle 141 that is equipped with on the internal perisporium 101 on connecting main part 10, and unsmooth cooperation between strip groove 321 and the protruding muscle 141 for cooperation between this protruding muscle 141 and the strip groove 321 can also play the effect of direction to the assembly of retainer plate 30 on connecting main part 10. Of course, the fool-proof member 32 and the fool-proof mating member 14 are not limited to the strip-shaped groove 321 and the rib 141 shown in the drawings, and it will be apparent to those skilled in the art that the fool-proof member 32 and the fool-proof mating member 14 can be arranged in a one-to-one line structure, which will not be described herein.

The utility model provides a be equipped with protruding knot 33 on retainer plate 30's the periphery wall 301, offer the catching groove 15 that is used for matcing protruding knot 33 on the joint main part 10, retainer plate 30 can be through protruding knot 33 and catching groove 15 between the cooperation joint in connecting main part 10 to this concrete assembly connection who realizes this retainer plate 30 and connect between the main part 10, so that install retainer plate 30 to connecting on the main part 10.

The utility model provides a first sealing washer 40, spacer ring 50 and second sealing washer 60 inlay in proper order and adorn in connecting main part 10, and cooperation joint 200 can cooperate with connecting main part 10 to extrude first sealing washer 40 and second sealing washer 60 simultaneously and take place deformation, when making this attach fitting 100 and cooperation joint 200 peg graft the cooperation, can play double seal's effect, in order to satisfy the user demand of assembly seal between attach fitting 100 and the cooperation joint 200.

As shown in fig. 2, the spacing step 51 is formed on the spacing ring 50, the joint body 10 is provided with a step surface 16 for matching the spacing step 51, and the spacing ring 50 can be installed in the joint body 10 until the spacing step 51 on the spacing ring 50 abuts against the step surface 16, that is, the installation position of the spacing ring 50 on the joint body 10 is determined, so that the size of the area of the joint body 10 for installing the first sealing ring 40 and the second sealing ring 60 is larger than that of the corresponding first sealing ring 40 and second sealing ring 60, and a corresponding deformation space is provided for the corresponding first sealing ring 40 and the corresponding second sealing ring 60. It should be noted that, the first limit boss 17 and the second limit boss 18 are further formed on the inner peripheral wall 101 of the joint main body 10 of the present application, the first limit boss 17 can abut against the first seal ring 40 to limit the first seal ring 40 to the position between the first limit boss 17 and the spacing ring 50, and the second limit boss 18 can abut against the fixing ring 30 to limit the second seal ring 60 to the position between the spacing ring 50 and the fixing ring 30, so that the use requirements of the compression deformation of the first seal ring 40 and the second seal ring 60 can be met.

In addition, in the joint body 10 of the present invention, the third seal ring 70 is fitted to the end away from the fixing ring 30, and the connection joint 100 can be assembled and sealed with the connection pipe 300 by the third seal ring 70. Of course, the number of the third sealing rings 70 may be set to be plural according to the use requirement, and will not be elaborated herein.

In conclusion, the connecting joint 100 of the present application is provided with the above-mentioned reasonable structure, so that the connecting joint 100 can be assembled with the mating joint 200 in place at one time, and in this process, there is no need to use an external tool or manually assemble again, so that the connecting joint 100 is convenient to assemble with the mating joint 200, and the stability of the overall structure of the connecting joint 100 and the mating joint 200 after assembly is improved.

The features of the above embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above embodiments are not described, but should be construed as being within the scope of the present specification as long as there is no contradiction between the combinations of the features.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and that suitable modifications and variations of the above embodiments are within the scope of the invention as claimed.

Claims (10)

1. A connection fitting for connecting a mating fitting (200) and a connection tube (300); the connecting joint (100) comprises a joint main body (10) and a lock spring (20), wherein a slot (11) is formed in the joint main body (10), and the lock spring (20) can be inserted into the joint main body (10) through the slot (11) so as to lock the matching joint (200) to the joint main body (10);

the connector is characterized in that a baffle (12) is arranged on a groove wall (111) of the insertion groove (11) of the connector main body (10), the baffle (12) is provided with a first end surface (121) and a second end surface (122), the first end surface (121) and the second end surface (122) are respectively arranged at two opposite sides of the baffle (12), and the first end surface (121) and an inner peripheral wall (101) of the connector main body (10) are arranged on the same plane;

the lock spring (20) comprises an elastic strip plate (21), a lock block (22) and a pushing block (23), the lock block (22) and the pushing block (23) are arranged on the elastic strip plate (21), and the lock spring (20) can drive the lock block (22) to be attached to the inner peripheral wall (101) and inserted into the slot (11) until the lock block (22) abuts against the first end face (121) of the blocking table (12); the pushing block (23) is provided with a pushing inclined surface (231), the matching joint (200) can push the pushing block (23) through the pushing inclined surface (231), and the pushing block (23) can drive the locking block (22) to move to the position of the second end surface (122) on the blocking platform (12) by utilizing the elastic deformation of the elastic strip plate (21), so that the locking spring (20) is locked on the joint main body (10).

2. The connector according to claim 1, wherein the stop (12) has a guiding inclined surface (123), and the lock block (22) has a guiding mating surface (221) for matching the guiding inclined surface (123), so as to guide the lock block (22) to move to a position of the second end surface (122) on the stop (12) by the cooperation between the guiding inclined surface (123) and the guiding mating surface (221).

3. The connecting joint according to claim 1, wherein the elastic strip (21) is provided with a protrusion (24), the protrusion (24) has an abutting surface (241), and the abutting surface (241) is attached to the inner peripheral wall (101) to guide the elastic deformation of the elastic strip (21) driven by the pushing block (23).

4. The connection joint according to claim 1, characterized in that the locking spring (20) further comprises a guide stop (25) and the locking spring (20) is able to act on the mating joint (200) by means of the guide stop (25) to lock the mating joint (200) to the joint body (10);

the connector main body (10) is provided with a sliding groove (13) used for being matched with the guide baffle (25), and the lock spring (20) is guided to be inserted into the slot (11) of the connector main body (10) by taking the matching between the guide baffle (25) and the sliding groove (13) as a guide.

5. The connector according to claim 1, wherein the elastic strip (21) is further provided with a projection (26), and the projection (26) can be engaged with the groove wall (111) of the slot (11) to limit the separation of the locking spring (20) from the connector body (10).

6. The connection joint according to claim 1, characterized in that a fixing ring (30) is detachably mounted on the joint main body (10); wherein, be equipped with connection rib (31) on retainer plate (30), spring (20) can pass through elasticity slat (21) drive locking piece (22) support by in connection rib (31) to the restriction spring (20) continue to insert connect main part (10).

7. The connection joint according to claim 6, characterized in that a fool-proof piece (32) is provided on the securing ring (30), a fool-proof fitting piece (14) for matching the fool-proof piece (32) is provided on the joint main body (10), and the securing ring (30) can be installed into the joint main body (10) with the fit between the fool-proof piece (32) and the fool-proof fitting piece (14) as a reference standard.

8. The connector according to claim 6, wherein a protruding buckle (33) is disposed on the outer peripheral wall (301) of the fixing ring (30), a buckle groove (15) for matching with the protruding buckle (33) is disposed on the connector main body (10), and the fixing ring (30) can be clamped to the connector main body (10) through the matching between the protruding buckle (33) and the buckle groove (15).

9. The connector according to claim 1, wherein the elastic strip (21) is provided with a plurality of protrusions (211), and the plurality of protrusions (211) are sequentially provided at intervals on one side end surface of the elastic strip (21) along the direction of inserting the lock spring (20) into the connector body (10).

10. The connector according to claim 1, wherein the connector (100) further comprises a first sealing ring (40), a spacer ring (50) and a second sealing ring (60), the first sealing ring (40), the spacer ring (50) and the second sealing ring (60) are sequentially embedded in the connector body (10), and the mating connector (200) can be mated with the connector body (10) and simultaneously press the first sealing ring (40) and the second sealing ring (60) to deform.

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