CN219866831U

CN219866831U - Anti-degassing dynamic joint

Info

Publication number: CN219866831U
Application number: CN202321169809.8U
Authority: CN
Inventors: 南永生; 南永松; 南永义; 南博
Original assignee: Zhejiang Yongrui Pneumatic Co ltd
Current assignee: Zhejiang Yongrui Pneumatic Co ltd
Priority date: 2023-05-12
Filing date: 2023-05-12
Publication date: 2023-10-20
Anticipated expiration: 2033-05-12

Abstract

The utility model discloses an anti-degassing dynamic joint, and relates to the technical field of pneumatic joints. The utility model comprises the following steps: the tube head is coaxially communicated with an insertion tube, a threaded joint is connected to the tube head, a sealing conical surface is formed on the inner peripheral side of the tube head, the inner diameter of the sealing conical surface gradually decreases from the direction of the tube head close to the insertion tube, and the minimum inner diameter of the sealing conical surface is the same as the inner diameter of the insertion tube; the backing ring is arranged on the inner peripheral side of the tube head, the sealing conical surface is positioned between the cannula and the backing ring, and the trachea is inserted into the tube head from the cannula and is abutted against the backing ring; the compression ring is of a frustum ring structure and moves back and forth in the tube head along the axis of the tube head, and when the compression ring is inserted into the air pipe, the end part of the air pipe is deformed and expanded and then is contacted with the sealing conical surface. When the pneumatic connector provided by the utility model is used, the stability of the air pipe in the pipe head can be improved by means of the pressure holding force, and compared with the existing pneumatic connector, the pneumatic connector is better in anti-falling performance and also ensures the sealing performance.

Description

Anti-degassing dynamic joint

Technical Field

The utility model relates to the technical field of pneumatic connectors, in particular to an anti-degassing pneumatic connector.

Background

The pneumatic quick connector is mainly used for air piping and pneumatic tools. At present, when the pneumatic connector is connected with an air pipe, burrs are removed after the end part of the air pipe is cut off, one end of the air pipe is inserted into a connector socket, and the air pipe is clamped and kept sealed by means of clamping pieces or clamping rings in the air pipe, but most of the connecting modes are flexible clamping, the anti-falling performance is common, and when the pneumatic connector is hard to pull, the air pipe is easily separated from the pneumatic connector.

Disclosure of Invention

The utility model aims at: in order to solve the problems set forth in the background art, the present utility model provides an anti-degassing joint.

The utility model adopts the following technical scheme for realizing the purposes:

an anti-outgassing fitting, comprising:

the tube head is coaxially communicated with an insertion tube, a threaded joint is connected to the tube head, a sealing conical surface is formed on the inner peripheral side of the tube head, the inner diameter of the sealing conical surface gradually decreases from the direction of the tube head close to the insertion tube, and the minimum inner diameter of the sealing conical surface is the same as the inner diameter of the insertion tube;

the backing ring is arranged on the inner peripheral side of the tube head, the sealing conical surface is positioned between the cannula and the backing ring, and the trachea is inserted into the tube head from the cannula and is abutted against the backing ring;

the compression ring is of a frustum ring structure and moves back and forth in the tube head along the axis of the tube head, and when the compression ring is inserted into the air pipe, the end part of the air pipe is deformed and expanded and then is contacted with the sealing conical surface.

Further, the tube head is far away from the cannula one end coaxial coupling has the motion pole, the motion pole is driven along tube head axis reciprocating motion, the clamping ring links to each other with the motion pole.

Further, one section of the motion rod is provided with an inner cavity, an air inlet hole is formed in the motion rod, the periphery side of the motion rod is connected with a guide pipe, and a sealing air bag is arranged on the guide pipe.

Further, the threaded knob is rotatably arranged on one side of the tube head, the moving rod is in threaded fit with the threaded knob, and the guide structure matched with the moving rod is arranged on the tube head so that the moving rod slides when the threaded knob rotates.

Further, the guide structure comprises a base arranged on the pipe head through a connecting rod, an inserting rod is arranged on the base, a slot is formed in one end of the moving rod, and the inserting rod is in sliding fit with the slot.

Further, a deflector rod is arranged on one side of the threaded knob.

Further, one end of the tube head is an opening, an end cover is detachably connected with the tube head, and the threaded knob and the connecting rod are arranged on the end cover.

Further, the outer peripheral side array of the tube head is provided with a threaded sleeve, and the end cover is connected with the threaded sleeve through bolts.

Further, the end cover is provided with a convex plate, and the convex plate is inserted into the tube head.

The beneficial effects of the utility model are as follows:

when the pneumatic connector provided by the utility model is used, the stability of the air pipe in the pipe head can be improved by means of the pressure holding force, and compared with the existing pneumatic connector, the pneumatic connector is better in anti-falling performance and also ensures the sealing performance.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a front view of FIG. 1 of the present utility model;

FIG. 3 is an isometric cross-sectional view taken in the direction A-A of FIG. 2 in accordance with the present utility model;

FIG. 4 is an enlarged view of the structure of FIG. 3B in accordance with the present utility model;

reference numerals: 1. a tube head; 2. a cannula; 3. sealing the conical surface; 4. a backing ring; 5. a compression ring; 6. a motion bar; 7. a threaded knob; 8. a slot; 9. a rod; 10. a base; 11. a connecting rod; 12. an end cap; 13. a threaded sleeve; 14. a threaded joint; 15. sealing the air bag; 16. an inner cavity; 17. a conduit; 18. an air inlet hole; 19. a deflector rod; 20. and an air pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Example 1

As shown in fig. 1-4, the present embodiment provides an anti-degassing joint, which includes:

the pipe head 1 is coaxially communicated with the insertion pipe 2, the air pipe 20 is inserted into the pipe head 1 from the insertion pipe 2, the pipe head 1 is connected with a screwed joint 14, the screwed joint 14 is used for connecting an air source, the inner peripheral side of the pipe head 1 is provided with a sealing conical surface 3, the inner diameter of the sealing conical surface 3 gradually decreases from the pipe head 1 to the direction close to the insertion pipe 2, and the minimum inner diameter of the sealing conical surface 3 is the same as the inner diameter of the insertion pipe 2;

the backing ring 4 is arranged on the inner peripheral side of the tube head 1, the sealing conical surface 3 is positioned between the cannula 2 and the backing ring 4, the air pipe 20 is inserted into the tube head 1 from the cannula 2 and is abutted against the backing ring 4, the backing ring 4 plays an abutting positioning role on the end part of the air pipe 20, and when the air pipe 20 is inserted into the tube head 1 and cannot move, the fact that the tube head 1 is inserted can be indicated;

the compression ring 5 is of a frustum ring structure, and moves reciprocally along the axis of the pipe head 1 in the pipe head 1, when the compression ring 5 is inserted into the air pipe 20, the end part of the air pipe 20 is deformed and expanded and then contacts with the sealing conical surface 3, the specific structure of the compression ring 5 is shown in fig. 3 and 4, and is of a frustum structure, but is of a hollow structure, so that the compression ring 5 is annular, the inner diameter and the outer diameter of the compression ring 5 are gradually reduced from the direction that the pipe head 1 is close to the insertion pipe 2, then the minimum end of the compression ring 5 enters the air pipe 20 when the compression ring 5 is close to the air pipe 20, and the air pipe 20 is propped open along with the continuous entering of the compression ring 5 into the air pipe 20, at this moment, attention is needed to apply an impetus to the air pipe 20 towards the direction of the backing ring 4, so that the stability of the compression ring 5 contacts with the air pipe 20 can be guaranteed, and the air pipe 20 is clamped between the compression ring 5 and the sealing conical surface 3 along with the continuous entering of the compression ring 5, so that the fixing of the air pipe 20 is completed, and the structure has better stability, and the compressed air pipe 20 after deformation is clamped by being compressed and clamped by the compression conical surface 3, so that the compression joint can be tightly held by the compression ring 20, and the compression joint can be better in the utility model, and the reliability is guaranteed when the compression joint is better when the utility model, and the compression joint is better and the reliability is improved, and compared with the pneumatic joint, and when the compression joint, and has the reliability.

As shown in fig. 4, one end of the tube head 1 far away from the cannula 2 is coaxially connected with a moving rod 6, the moving rod 6 is located inside a pressing ring 5, the moving rod 6 is connected with the inside of the pressing ring 5 through a long rod (not shown in the drawing), the moving rod 6 is driven to reciprocate along the axis of the tube head 1, the pressing ring 5 is connected with the moving rod 6, and the pressing ring 5 cannot directly apply force to the moving rod because the pressing ring 5 is located inside the tube head 1, wherein the operating end of the moving rod 6 is located outside the tube head 1, and therefore the pressing ring 5 can be conveniently driven to move together by applying force to the moving rod 6.

As shown in fig. 4, one section of the moving rod 6 is configured with an inner cavity 16, an air inlet hole 18 is configured on the moving rod 6, a conduit 17 is connected to the peripheral side of the moving rod 6, a sealing air bag 15 is installed on the conduit 17, the sealing air bag 15 is in a collapsed state in a normal state, when an air pipe 20 is connected with an air source connector through a pneumatic connector of the utility model, an external air source enters the pipe head 1 through the threaded connector 14 and then enters the air pipe 20 through the compression ring 5 to be discharged, a part of the air source enters the inner cavity 16 through the air inlet hole 18 and then enters the sealing air bag 15 through the conduit 17, so that the sealing air bag 15 is expanded to be in contact with the inside of the air pipe 20 and the air pipe 20 is forced to be tightly attached to the insertion pipe 2 in a deforming way, and thus when the pneumatic connector is in use, an interference force is applied to the air pipe 20 under the cooperation of the sealing air bag 15 by means of continuous air source, so as to improve the stability and tightness of the air pipe 20.

As shown in fig. 1, a threaded knob 7 is rotatably mounted on one side of the tube head 1, the moving rod 6 is in threaded fit with the threaded knob 7, a guiding structure matched with the moving rod 6 is mounted on the tube head 1, so that when the threaded knob 7 rotates, the moving rod 6 slides, the threaded knob 7 is mounted on the tube head 1 through a bearing, and the moving rod 6 can only perform linear motion under the cooperation of the guiding structure, then the position of the moving rod 6 can be adjusted by rotating the threaded knob 7, so that the position of the compression ring 5 is changed, and after the position is adjusted, the position stability of the moving rod 6 is maintained under the threaded fit.

As shown in fig. 1 and 2, the guiding structure comprises a base 10 mounted on the pipe head 1 through a connecting rod 11, a plug rod 9 is mounted on the base 10, a slot 8 is formed at one end of the moving rod 6, the plug rod 9 is in sliding fit with the slot 8, the cross sections of the slot 8 and the plug rod 9 are prismatic, the moving rod 6 cannot rotate, the position of the plug rod 9 is not moved, and when the moving rod 6 moves, the moving rod moves on the plug rod 9 through the slot 8.

As shown in fig. 2, a deflector rod 19 is installed on one side of the threaded knob 7, and the threaded knob 7 is conveniently turned by applying force to the deflector rod 19, so that convenience is provided for the operation of the present utility model.

Example two

According to the embodiment, as shown in fig. 2, one end of the pipe head 1 is provided with an opening, an end cover 12 is detachably connected, the threaded knob 7 and the connecting rod 11 are installed on the end cover 12, convenience is provided for assembling the pneumatic connector, the threaded knob 7 and the connecting rod 11 are installed on the end cover 12, the moving rod 6 and the compression ring 5 are installed under the cooperation of the threaded knob 7, the end cover 12 is directly connected with the pipe head 1, the installation operation of the whole pneumatic connector can be completed, wherein the outer peripheral side of the pipe head 1 is provided with a threaded sleeve 13 in an array manner, the end cover 12 is connected with the threaded sleeve 13 through a bolt, the connection mode of the pipe head 1 and the end cover 12 is simple and convenient to operate, the firmness after installation is good, and a convex plate is constructed on the end cover 12 and inserted into the pipe head 1, so that a sealing structure can be formed to improve the sealing performance of the joint of the pipe head 1 and the end cover 12.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An anti-outgassing nipple, comprising:

the pipe head (1) is coaxially communicated with the insertion pipe (2), the pipe head (1) is connected with a threaded joint (14), a sealing conical surface (3) is formed on the inner peripheral side of the pipe head (1), the inner diameter of the sealing conical surface (3) gradually decreases from the direction of the pipe head (1) close to the insertion pipe (2), and the minimum inner diameter of the sealing conical surface (3) is the same as the inner diameter of the insertion pipe (2);

the backing ring (4) is arranged on the inner peripheral side of the pipe head (1), the sealing conical surface (3) is positioned between the insertion pipe (2) and the backing ring (4), and the air pipe (20) is inserted into the pipe head (1) from the insertion pipe (2) and is abutted against the backing ring (4);

the compression ring (5) is of a frustum ring structure, and moves back and forth along the axis of the tube head (1) in the tube head (1), and when the compression ring (5) is inserted into the air pipe (20), the end part of the air pipe (20) is deformed and expanded and then is contacted with the sealing conical surface (3).

2. An anti-degassing joint according to claim 1, wherein one end of the tube head (1) far away from the cannula (2) is coaxially connected with a moving rod (6), the moving rod (6) is driven to reciprocate along the axis of the tube head (1), and the compression ring (5) is connected with the moving rod (6).

3. An anti-degassing joint according to claim 2, characterized in that one section of the moving rod (6) is provided with an inner cavity (16), an air inlet hole (18) is formed in the moving rod (6), a conduit (17) is connected to the peripheral side of the moving rod (6), and a sealing air bag (15) is mounted on the conduit (17).

4. An anti-degassing joint according to claim 2, wherein a threaded knob (7) is rotatably mounted on one side of the pipe head (1), the moving rod (6) is in threaded engagement with the threaded knob (7), and a guide structure engaged with the moving rod (6) is mounted on the pipe head (1) so that the moving rod (6) slides when the threaded knob (7) is rotated.

5. The anti-degassing joint according to claim 4, wherein the guiding structure comprises a base (10) mounted on the pipe head (1) through a connecting rod (11), a plug rod (9) is mounted on the base (10), a slot (8) is formed at one end of the moving rod (6), and the plug rod (9) is in sliding fit with the slot (8).

6. An anti-degassing joint according to claim 4, characterized in that a deflector rod (19) is mounted on one side of the threaded knob (7).

7. An anti-degassing joint according to claim 5, characterized in that the tube head (1) is open at one end and is detachably connected with an end cap (12), and the threaded knob (7) and the connecting rod (11) are mounted on the end cap (12).

8. An anti-degassing joint according to claim 7, characterized in that the outer circumferential array of the tube head (1) is constructed with threaded sleeves (13), and the end cap (12) is connected to the threaded sleeves (13) by bolts.

9. An anti-degassing joint according to claim 7, characterized in that said end cap (12) is provided with a lug which is inserted in the tube head (1).