CN214093417U

CN214093417U - Self-locking buckle type pneumatic connector

Info

Publication number: CN214093417U
Application number: CN202120045684.2U
Authority: CN
Inventors: 施程勇; 陈利国; 张礼华
Original assignee: Zhejiang Dongte Pneumatic Co ltd
Current assignee: Zhejiang Dongte Pneumatic Co ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-08-31
Anticipated expiration: 2031-01-08

Abstract

The utility model relates to the technical field of pneumatic connectors, in particular to a self-locking buckling-pressing type pneumatic connector, which comprises a pneumatic connector main body, an embedded pipe, a buckling nut and a limiting sleeve, wherein one side of the pneumatic connector main body is provided with the embedded pipe, the outer side of the embedded pipe is provided with the limiting sleeve on the pneumatic connector main body, a connecting air pipe is arranged between the limiting sleeve and the embedded pipe, the inner side of one end of the limiting sleeve, which is far away from the pneumatic connector main body, is provided with a first inner conical surface, the top of the limiting sleeve is provided with a mounting groove, the top of the inner part of the mounting groove is fixedly connected with a limiting ring, a reset spring is arranged in the mounting groove, the top of the reset spring is provided with a fixing plate, the top of the fixing plate is provided with an arc-shaped fixture block which passes through the limiting ring, the outer side of the limiting sleeve is sleeved with the buckling nut, the inner side of the buckling nut, which is close to one end of the limiting sleeve, is provided with an inner groove, the integral connection is convenient, the sealing performance is good, the connection stability is good, and certain popularization value is achieved.

Description

Self-locking buckle type pneumatic connector

Technical Field

The utility model relates to a pneumatic joint technical field specifically is a self-locking buckle formula pneumatic joint.

Background

The pneumatic connector is mainly used for air piping and pneumatic tools, can realize pipeline connection or disconnection without tools, has wide application range, and is generally used for conveying oil, water or gas.

The structure of current formula pneumatic joint of withholding is comparatively simple, and the steadiness of connecting is not good, leads to withholding the nut easily and becomes flexible, causes to connect the trachea and breaks away from, and it is relatively poor to connect leakproofness between trachea and the pneumatic joint, leaks gas easily, consequently needs a auto-lock formula pneumatic joint of withholding to make the improvement to above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a self-locking buckle formula pneumatic connector to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a self-locking buckling-pressing type pneumatic connector comprises a pneumatic connector main body, an embedding pipe, a buckling-pressing nut and a limiting sleeve, wherein the embedding pipe is arranged on one side of the pneumatic connector main body, the outer side of the embedding pipe is positioned on the pneumatic connector main body and is provided with the limiting sleeve, a connecting air pipe is arranged between the limiting sleeve and the embedding pipe, the inner side of one end, away from the pneumatic connector main body, of the limiting sleeve is provided with a first inner conical surface, the top of the limiting sleeve is provided with a mounting groove, the top end of the inside of the mounting groove is fixedly connected with a limiting ring, a reset spring is arranged inside the mounting groove, the top of the reset spring is provided with a fixing plate, the top of the fixing plate is provided with an arc-shaped fixture block which penetrates through the limiting ring, the buckling-pressing nut is sleeved on the outer side of the limiting sleeve, the inner groove is arranged on the inner side, close to one end of the limiting sleeve, of the buckling-pressing nut is provided with a clamping hole close to one end of the limiting sleeve, spacing sleeve pipe and withhold between the nut and be located the inner groovy and be equipped with preceding cutting ferrule and back cutting ferrule, preceding cutting ferrule sets up and is being close to spacing sleeve pipe department, preceding cutting ferrule is close to and is equipped with first outer conical surface on the lateral wall of spacing sleeve pipe one end, be equipped with second interior conical surface on the inside wall of the preceding cutting ferrule other end, back cutting ferrule is close to and is equipped with the outer conical surface of second on the lateral wall of preceding cutting ferrule one end.

Preferably, the embedded pipe and the limiting sleeve are integrally formed with the pneumatic connector main body, and the length of the embedded pipe is greater than that of the limiting sleeve.

Preferably, the outer side wall of the limiting sleeve is provided with an external thread, the side wall of the inner groove is provided with an internal thread, and the buckling nut is in threaded connection with the limiting sleeve.

Preferably, the inclination angle of the first inner conical surface is consistent with that of the first outer conical surface, and the front ferrule and the limiting sleeve slide relatively through the first outer conical surface and the first inner conical surface.

Preferably, the inclination angles of the second inner conical surface and the second outer conical surface are consistent, and the rear ferrule and the front ferrule slide relatively through the second outer conical surface and the second inner conical surface.

Preferably, the arc-shaped fixture block and the fixing plate are integrally formed, and the diameter of the arc-shaped fixture block is smaller than that of the clamping hole.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the utility model, the front cutting ferrule, the rear cutting ferrule and the crimping nut are sequentially sleeved outside the connecting air pipe through the crimping nut, the limiting sleeve, the front cutting ferrule and the rear cutting ferrule which are arranged, the inclination angle of the first inner conical surface is consistent with that of the first outer conical surface through the threaded connection between the crimping nut and the limiting sleeve, the relative sliding between the front cutting ferrule and the limiting sleeve is realized through the first outer conical surface and the first inner conical surface, the inclination angle of the second inner conical surface is consistent with that of the second outer conical surface, the rear cutting ferrule and the front cutting ferrule are relatively slid through the second outer conical surface and the second inner conical surface, when the crimping nut is screwed, the front cutting ferrule and the rear cutting ferrule are pushed towards the limiting sleeve, the axial movement is converted into the radial extrusion effect, the front cutting ferrule and the rear cutting ferrule are clamped on the connecting air pipe, the fixed connection effect of the connecting air pipe is improved, and the connection stability is good, and the front clamping sleeve and the rear clamping sleeve form double sealing with the connecting air pipe, so that the sealing performance is improved.

2. The utility model discloses in, through reset spring, fixed plate, arc fixture block and the joint hole that sets up, when withholding the nut and screwing in place, the position of joint hole and mounting groove is corresponding, and the arc fixture block advances the mounting groove under reset spring's elastic action in, will withhold nut rigidity, realizes the auto-lock, avoids in the use, withholds the nut not hard up, leads to connecting the trachea and breaks away from, increases the linkage effect, and the practicality is higher.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure of the area A of the present invention;

fig. 3 is an enlarged schematic view of the structure of the area B of the present invention.

In the figure: 1. a pneumatic fitting body; 2. an insert tube; 3. connecting an air pipe; 4. pressing the nut; 5. an inner groove; 6. a limiting sleeve; 7. a first inner tapered surface; 8. a front ferrule; 9. a first outer tapered surface; 10. a second inner tapered surface; 11. a rear ferrule; 12. a second outer tapered surface; 13. a clamping hole; 14. mounting grooves; 15. a return spring; 16. a fixing plate; 17. an arc-shaped fixture block; 18. a limit ring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

a self-locking buckling type pneumatic connector comprises a pneumatic connector main body 1, an embedding pipe 2, a buckling nut 4 and a limiting sleeve 6, wherein the embedding pipe 2 is arranged on one side of the pneumatic connector main body 1, the limiting sleeve 6 is arranged on the outer side of the embedding pipe 2 and positioned on the pneumatic connector main body 1, the embedding pipe 2, the limiting sleeve 6 and the pneumatic connector main body 1 are integrally formed, the length of the embedding pipe 2 is larger than that of the limiting sleeve 6, a connecting air pipe 3 is arranged between the limiting sleeve 6 and the embedding pipe 2, a first inner conical surface 7 is arranged on the inner side of one end, away from the pneumatic connector main body 1, of the limiting sleeve 6, a mounting groove 14 is formed in the top of the limiting sleeve 6, a limiting ring 18 is fixedly connected to the top end inside the mounting groove 14, a reset spring 15 is arranged inside the mounting groove 14, a fixing plate 16 is arranged on the top of the reset spring 15, an arc-shaped clamping block 17 penetrating through the limiting ring 18 is arranged on the top of the fixing plate 16, and the arc-shaped clamping block 17 and the fixing plate 16 are integrally formed, the outer side of the limiting sleeve 6 is sleeved with a buckling nut 4, the outer side wall of the limiting sleeve 6 is provided with an external thread, the side wall of the inner groove 5 is provided with an internal thread, the buckling nut 4 is in threaded connection with the limiting sleeve 6, the inner side of one end, close to the limiting sleeve 6, of the buckling nut 4 is provided with the inner groove 5, the top, close to one end of the limiting sleeve 6, of the buckling nut 4 is provided with a clamping hole 13, the diameter of an arc-shaped clamping block 17 is smaller than that of the clamping hole 13, a front clamping sleeve 8 and a rear clamping sleeve 11 are arranged between the limiting sleeve 6 and the buckling nut 4 and in the inner groove 5, the front clamping sleeve 8 is arranged close to the limiting sleeve 6, the outer side wall, close to one end of the limiting sleeve 6, of the front clamping sleeve 8 is provided with a first outer conical surface 9, the inclination angle of the first inner conical surface 7 is consistent with that of the first outer conical surface 9, and the first inner conical surface 7 relatively slide between the front clamping sleeve 8 and the limiting sleeve 6, the inside wall of the other end of the front cutting sleeve 8 is provided with a second inner conical surface 10, the outside wall of one end of the rear cutting sleeve 11 close to the front cutting sleeve 8 is provided with a second outer conical surface 12, the inclination angle of the second inner conical surface 10 is consistent with that of the second outer conical surface 12, and the rear cutting sleeve 11 and the front cutting sleeve 8 slide relatively through the second outer conical surface 12 and the second inner conical surface 10.

The utility model discloses work flow: when the connecting air pipe 3 is used, the front clamping sleeve 8, the rear clamping sleeve 11 and the retaining nut 4 are sequentially sleeved outside the connecting air pipe 3, the connecting air pipe 3 is inserted between the limiting sleeve 6 and the embedded pipe 2, the first inner conical surface 7 and the first outer conical surface 9 are in consistent inclination angle through threaded connection between the retaining nut 4 and the limiting sleeve 6, the front clamping sleeve 8 and the limiting sleeve 6 slide relatively through the first outer conical surface 9 and the first inner conical surface 7, the second inner conical surface 10 and the second outer conical surface 12 are in consistent inclination angle, the rear clamping sleeve 11 and the front clamping sleeve 8 slide relatively through the second outer conical surface 12 and the second inner conical surface 10, when the retaining nut 4 is screwed, the front clamping sleeve 8 and the rear clamping sleeve 11 are pushed towards the limiting sleeve 6 by the retaining nut 4, the axial movement of the clamping sleeve is converted into radial extrusion action, so that the front clamping sleeve 8 and the rear clamping sleeve 11 are clamped on the connecting air pipe 3, improve the fixed connection effect of connecting trachea 3, it is good to connect the steadiness, and form double seal between preceding cutting ferrule 8 and back cutting ferrule 11 and the connecting trachea 3, improve sealing performance, when withholding nut 4 screws and targets in place, joint hole 13 is corresponding with the position of mounting groove 14, arc fixture block 17 impels in mounting groove 14 under reset spring 15's elastic action, it is fixed to withhold nut 4 position, realize the auto-lock, avoid in the use, withhold nut 4 not hard up, lead to connecting trachea 3 to break away from, increase the connection effect, the monolithic connection is convenient, the leakproofness is good, it is good to connect the steadiness, certain spreading value has.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a self-locking buckle type pneumatic connector, includes pneumatic connector main part (1), embedding pipe (2), buckle nut (4) and spacing sleeve (6), its characterized in that: the pneumatic connector is characterized in that an embedded pipe (2) is arranged on one side of a pneumatic connector main body (1), a limiting sleeve (6) is arranged on the outer side of the embedded pipe (2) and is positioned on the pneumatic connector main body (1), a connecting air pipe (3) is arranged between the limiting sleeve (6) and the embedded pipe (2), a first inner conical surface (7) is arranged on the inner side of one end, away from the pneumatic connector main body (1), of the limiting sleeve (6), a mounting groove (14) is formed in the top of the limiting sleeve (6), a limiting ring (18) is fixedly connected to the top end of the inside of the mounting groove (14), a reset spring (15) is arranged inside the mounting groove (14), a fixing plate (16) is arranged on the top of the reset spring (15), an arc-shaped clamping block (17) penetrating through the limiting ring (18) is arranged on the top of the fixing plate (16), a buckling nut (4) is sleeved on the outer side of the limiting sleeve (6), an inner groove (5) is arranged on the inner side, close to one end of the buckling nut (4) close to the limiting sleeve (6), withhold nut (4) and be close to the top of spacing sleeve pipe (6) one end and seted up joint hole (13), spacing sleeve pipe (6) and withhold between nut (4) and be located before cutting ferrule (8) and back cutting ferrule (11) in inner grove (5) are equipped with, preceding cutting ferrule (8) set up and are being close to spacing sleeve pipe (6) department, preceding cutting ferrule (8) are close to and are equipped with first outer conical surface (9) on the lateral wall of spacing sleeve pipe (6) one end, be equipped with interior conical surface (10) of second on the inside wall of preceding cutting ferrule (8) other end, back cutting ferrule (11) are close to and are equipped with second outer conical surface (12) on the lateral wall of preceding cutting ferrule (8) one end.

2. The self-latching, and pressing pneumatic connector of claim 1, further comprising: the embedded pipe (2) and the limiting sleeve (6) are integrally formed with the pneumatic connector main body (1), and the length of the embedded pipe (2) is larger than that of the limiting sleeve (6).

3. The self-latching, and pressing pneumatic connector of claim 1, further comprising: the outer side wall of the limiting sleeve (6) is provided with external threads, the side wall of the inner groove (5) is provided with internal threads, and the buckling nut (4) is in threaded connection with the limiting sleeve (6).

4. The self-latching, and pressing pneumatic connector of claim 1, further comprising: the inclination angle of the first inner conical surface (7) is consistent with that of the first outer conical surface (9), and the front clamping sleeve (8) and the limiting sleeve (6) slide relatively through the first outer conical surface (9) and the first inner conical surface (7).

5. The self-latching, and pressing pneumatic connector of claim 1, further comprising: the inclination angles of the second inner conical surface (10) and the second outer conical surface (12) are consistent, and the rear cutting ferrule (11) and the front cutting ferrule (8) slide relatively through the second outer conical surface (12) and the second inner conical surface (10).

6. The self-latching, and pressing pneumatic connector of claim 1, further comprising: the arc-shaped fixture block (17) and the fixing plate (16) are integrally formed, and the diameter of the arc-shaped fixture block (17) is smaller than that of the clamping hole (13).