CN219388894U

CN219388894U - Dual-reinforcement leakage-proof positioning hydraulic pipe fitting joint

Info

Publication number: CN219388894U
Application number: CN202320420834.2U
Authority: CN
Inventors: 张毓中
Original assignee: Zhejiang Hengzhan Machinery Co ltd
Current assignee: Zhejiang Hengzhan Machinery Co ltd
Priority date: 2023-03-02
Filing date: 2023-03-02
Publication date: 2023-07-21
Anticipated expiration: 2033-03-02

Abstract

The utility model provides a double-reinforcement leakage-proof positioning hydraulic pipe fitting joint, which comprises a joint pipe, a joint seat and a joint sleeve; a baffle ring is coaxially arranged at the water outlet end of the joint pipe, a first guide conical surface is arranged at the end part of the baffle ring, which is close to the joint seat, and the diameter of the first guide conical surface gradually decreases towards one side of the joint seat; the first guide conical surface is provided with a mounting ring groove, sealing rubber is arranged in the mounting ring groove, and the outer side of the sealing rubber protrudes out of a notch of the mounting ring groove; the inner side of the water inlet end of the joint seat is provided with a second guide conical surface, and the outer side of the water inlet end of the joint seat is provided with a first external thread; the end part of the joint sleeve, which is away from the joint seat, is provided with an inward flanging, the inward flanging is sleeved on the joint pipe, and the inner side of the joint sleeve is provided with an internal thread I. When the first guide conical surface and the second guide conical surface are contacted, the sealing rubber effectively seals the gap between the first guide conical surface and the second guide conical surface, and liquid is not easy to flow out in the flowing process.

Description

Dual-reinforcement leakage-proof positioning hydraulic pipe fitting joint

Technical Field

The utility model relates to a hydraulic pipe joint, in particular to a double-reinforcement leakage-proof positioning hydraulic pipe joint.

Background

Currently, chinese patent publication No. CN210106796U discloses a high-pressure hydraulic pipe joint, which includes a first body and a second body. The first body is provided with a first liquid inlet pipe joint and a first liquid outlet pipe joint, the first liquid inlet pipe joint and the first liquid outlet pipe joint are vertically distributed, and the first liquid inlet pipe joint and the first liquid outlet pipe joint are communicated with each other through the first body. The second body is provided with a second liquid inlet pipe joint and a second liquid outlet pipe joint, the second liquid inlet pipe joint and the second liquid outlet pipe joint are distributed until distributed, and the second liquid inlet pipe joint and the second liquid outlet pipe joint are communicated with each other through the second body.

The liquid inlet end of the liquid inlet pipe joint I is provided with a sleeving part which expands in diameter to form an axial leaning step. The outer wall of the liquid outlet pipe joint II is provided with an abutting ring. The second liquid outlet pipe joint is in interference fit connection with the sleeve part, the outer end face of the second liquid outlet pipe joint is abutted against the axial abutment step of the sleeve part, and the outer end face of the sleeve part is abutted against the abutment ring axially.

A protection device is also arranged between the first body and the second body. The protection device comprises a protection sleeve, one end of the protection sleeve is provided with a necking abutting part, and the necking abutting part is arranged on the second liquid outlet pipe joint in a sliding manner. The inner wall of the protective sleeve is provided with internal threads, the outer walls of the abutting ring and the sleeving part are provided with external threads, and the protective sleeve is in threaded connection with the external threads of the abutting ring and the sleeving part through the internal threads.

However, due to processing problems such as processing precision, the second liquid outlet pipe joint cannot be completely attached to the sleeving part, so that a gap exists between the second liquid outlet pipe joint and the sleeving part, and liquid in the hydraulic pipe joint flows out through the gap.

Disclosure of Invention

In view of the above, the present utility model aims to provide a dual-reinforcement leak-proof positioning hydraulic pipe fitting joint, which has the advantage that liquid is not easy to flow out.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the double-reinforcement leakage-proof positioning hydraulic pipe fitting joint comprises a joint pipe, a joint seat and a joint sleeve, wherein the joint sleeve is rotationally connected with the joint pipe and is used for connecting the joint seat; a baffle ring is coaxially arranged at the water outlet end of the joint pipe, the outer diameter of the baffle ring is larger than that of the joint pipe, a first guide conical surface is arranged at the end part, close to the joint seat, of the baffle ring, and the straight line of the first guide conical surface gradually decreases to one side of the joint seat;

the first guide conical surface is provided with an installation ring groove, sealing rubber is arranged in the installation ring groove, and the outer side of the sealing rubber protrudes out of the notch of the installation ring groove;

the inner side of the water inlet end of the connector seat is provided with a second guide conical surface which is used for being attached to the first guide conical surface, and the outer side of the water inlet end of the connector seat is provided with a first external thread;

the end part of the joint sleeve, which is away from the joint seat, is provided with an inward flanging, the inward flanging is sleeved on the joint pipe, the inner side of the joint sleeve is provided with an internal thread I, and the internal thread I is used for being screwed and fixed with the external thread I.

Through the technical scheme, the water outlet end of the joint pipe is controlled to be close to the water inlet end of the joint seat, so that the baffle ring is inserted into the joint seat, and the first internal thread on the inner side of the joint seat is contacted with the first external thread on the outer side of the joint seat. The joint sleeve is rotated, so that the internal thread I at the inner side of the joint sleeve is screwed and fixed with the external thread I at the outer side of the joint seat. Meanwhile, the joint sleeve drives the baffle ring and the joint pipe to penetrate into the joint seat through the inward flanging. When the sealing rubber collides with the second guide conical surface, the sealing rubber starts to elastically deform and gradually seals the gap between the first guide conical surface and the second guide conical surface. When the first guide conical surface and the second guide conical surface are contacted, the sealing rubber effectively seals the gap between the first guide conical surface and the second guide conical surface, and liquid is not easy to flow out in the flowing process.

Preferably, a limiting ring is arranged on the inner side of the joint seat, the limiting ring is located on one side, far away from the joint pipe, of the second guide conical surface, and when the limiting ring is in contact with the baffle ring, the limiting ring can limit the joint pipe to continue to extend into the joint seat.

Through above-mentioned technical scheme, when spacing ring and fender ring are inconsistent, spacing ring can restrict fender ring and joint pipe and continue to go deep into the joint seat, and the condition that damages because of excessive extrusion is difficult for appearing in fender ring and sealing rubber like this.

Preferably, the limiting ring is uniformly provided with a plurality of connecting holes, and the connecting holes axially penetrate through the limiting ring.

Through above-mentioned technical scheme, offered the connecting hole on the spacing ring, so can reduce the obstruction that the spacing ring caused to the liquid flow in the furthest.

Preferably, positioning ring grooves are formed in two sides of the mounting ring groove, positioning convex rings corresponding to the positioning ring grooves one by one are arranged on the side wall of the sealing rubber, and the positioning convex rings are clamped into the corresponding positioning ring grooves.

Through the technical scheme, the positioning annular groove is matched with the positioning convex ring, so that the sealing rubber can be limited, and the sealing rubber is not easy to deviate from the mounting annular groove.

Preferably, the end part of the inward flanging, which is far away from the joint seat, is provided with a caulking groove, and a wear-resistant ring is arranged in the caulking groove and is in contact with the outer side of the joint pipe.

Through the technical scheme, the wear-resisting ring is high in hardness and good in wear resistance, the wear of the joint sleeve can be effectively reduced, and the service life of the hydraulic pipe joint is prolonged.

Preferably, the inner side of the notch of the caulking groove is provided with a second internal thread, an annular blocking cover is arranged in the caulking groove, the outer side of the annular blocking cover is provided with a second external thread, and the second external thread is screwed and fixed with the second internal thread.

Through above-mentioned technical scheme, carry out spacingly to the wear ring through annular fender lid for the dismouting of wear ring becomes more convenient.

Preferably, an operation groove is formed in the end portion, away from the joint seat, of the annular blocking cover, and the operation groove is arranged along the radial direction of the annular blocking cover.

Through above-mentioned technical scheme, can comparatively conveniently control the rotation of annular fender lid through the operation groove for the dismouting of annular fender lid becomes more convenient.

Drawings

FIG. 1 is a schematic diagram of an embodiment;

fig. 2 is an enlarged view of a portion a of fig. 1;

fig. 3 is an enlarged view of a portion B of fig. 1.

Reference numerals: 1. a joint pipe; 2. a joint seat; 3. a joint sleeve; 4. a baffle ring; 5. a first guide conical surface; 6. installing a ring groove; 7. sealing rubber; 8. a second guide conical surface; 9. an inner flanging; 10. a limiting ring; 11. a connection hole; 12. positioning ring grooves; 13. positioning the convex ring; 14. a caulking groove; 15. a wear ring; 16. an annular blocking cover; 17. the operation groove.

Description of the embodiments

The following detailed description of the utility model is provided in connection with the accompanying drawings to facilitate understanding and grasping of the technical scheme of the utility model.

The double-reinforcement leakage-proof positioning hydraulic pipe fitting joint comprises a joint pipe 1, a joint seat 2 and a joint sleeve 3 as shown in figures 1 to 3.

The water outlet end of the joint pipe 1 is coaxially provided with a baffle ring 4, the baffle ring 4 and the joint pipe 1 are integrally formed, the inner diameter of the baffle ring 4 is the same as the inner diameter of the joint pipe 1, and the outer diameter of the baffle ring 4 is larger than the outer diameter of the joint pipe 1. The end part of the baffle ring 4, which is close to the joint seat 2, is coaxially provided with a first guide conical surface 5, the diameter of the first guide conical surface 5 gradually decreases towards one side of the joint seat 2, and the minimum outer diameter of the guide conical surface is larger than the inner diameter of the baffle ring 4. The first guide conical surface 5 is coaxially provided with a mounting ring groove 6, a sealing rubber 7 is arranged in the mounting ring groove 6, and the outer side of the sealing rubber 7 protrudes out of a notch of the mounting ring groove 6. The two sides of the installation ring groove 6 are provided with positioning ring grooves 12, and the positioning ring grooves 12 and the installation ring groove 6 are coaxially arranged. The side wall of the sealing rubber 7 is provided with positioning convex rings 13 corresponding to the positioning annular grooves 12 one by one, and the positioning convex rings 13 are clamped into the corresponding positioning annular grooves 12.

The inner side of the water inlet end of the joint seat 2 is provided with a second guiding conical surface 8, and the second guiding conical surface 8 can be attached to the first guiding conical surface 5. The inside of the joint seat 2 is provided with a limiting ring 10, the limiting ring 10 is positioned on one side of the second guiding conical surface 8 away from the joint pipe 1, and if the limiting ring 10 is in contact with the baffle ring 4, the limiting ring 10 can limit the joint pipe 1 to continuously extend into the joint seat 2. A plurality of connecting holes 11 are uniformly formed in the limiting ring 10, and the connecting holes 11 penetrate through the limiting ring 10 along the axial direction. The outer side of the water inlet end of the joint seat 2 is provided with an external thread I.

The joint sleeve 3 is rotatably connected to the joint pipe 1, and an internal thread I is arranged on the inner side of the joint sleeve 3 and is used for being screwed and fixed with an external thread I. The end part of the joint sleeve 3, which is away from the joint seat 2, is provided with an inner flanging 9, the end part of the inner flanging 9, which is away from the joint seat 2, is provided with a caulking groove 14, and the inner side of a notch of the caulking groove 14 is provided with a second internal thread. The caulking groove 14 is internally provided with a wear-resistant ring 15, and the wear-resistant ring 15 is rotatably sleeved on the outer side of the joint pipe 1. An annular blocking cover 16 is arranged in the caulking groove 14, and an external thread II is arranged on the outer side of the annular blocking cover 16 and is screwed and fixed with the internal thread II. The end of the annular blocking cover 16 far away from the joint seat 2 is provided with an operation groove 17, and the operation groove 17 is arranged along the radial direction of the annular blocking cover 16.

Of course, the above is only a typical example of the utility model, and other embodiments of the utility model are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the utility model claimed.

Claims

1. The double-reinforcement leakage-proof positioning hydraulic pipe fitting joint comprises a joint pipe (1), a joint seat (2) and a joint sleeve (3), wherein the joint sleeve (3) is rotationally connected with the joint pipe (1) and is used for connecting the joint seat (2); the method is characterized in that: a baffle ring (4) is coaxially arranged at the water outlet end of the joint pipe (1), the outer diameter of the baffle ring (4) is larger than the outer diameter of the joint pipe (1), a guide conical surface I (5) is arranged at the end part, close to the joint seat (2), of the baffle ring (4), and the straight line of the guide conical surface I (5) gradually decreases to one side of the joint seat (2);

a mounting ring groove (6) is formed in the first guide conical surface (5), sealing rubber (7) is arranged in the mounting ring groove (6), and the outer side of the sealing rubber (7) protrudes out of a notch of the mounting ring groove (6);

a second guide conical surface (8) is arranged on the inner side of the water inlet end of the connector base (2), the second guide conical surface (8) is used for being attached to the first guide conical surface (5), and an external thread I is arranged on the outer side of the water inlet end of the connector base (2);

the end part of the joint sleeve (3) deviating from the joint seat (2) is provided with an inner flanging (9), the inner flanging (9) is sleeved on the joint pipe (1), the inner side of the joint sleeve (3) is provided with an inner thread I, and the inner thread I is used for being screwed and fixed with the outer thread I.

2. The dual reinforcement leak-proof locating hydraulic pipe fitting joint of claim 1, wherein: the inside of joint seat (2) is provided with spacing ring (10), spacing ring (10) are located guide conical surface two (8) keep away from joint pipe (1) one side, when spacing ring (10) with keep off ring (4) are inconsistent, spacing ring (10) can restrict joint pipe (1) continue to go deep into joint seat (2).

3. The dual reinforcement leak-proof locating hydraulic pipe fitting joint of claim 2, wherein: a plurality of connecting holes (11) are uniformly formed in the limiting ring (10), and the connecting holes (11) axially penetrate through the limiting ring (10).

4. The dual reinforcement leak-proof locating hydraulic pipe fitting joint of claim 1, wherein: positioning annular grooves (12) are formed in two sides of the mounting annular groove (6), positioning convex rings (13) which are in one-to-one correspondence with the positioning annular grooves (12) are arranged on the side wall of the sealing rubber (7), and the positioning convex rings (13) are clamped into the corresponding positioning annular grooves (12).

5. The dual reinforcement leak-proof locating hydraulic pipe fitting joint of claim 1, wherein: the end part of the inner flanging (9) far away from the joint seat (2) is provided with an embedded groove (14), a wear-resistant ring (15) is arranged in the embedded groove (14), and the wear-resistant ring (15) is in contact with the outer side of the joint pipe (1).

6. The dual reinforcement leak-proof locating hydraulic pipe fitting joint of claim 5, wherein: the inner side of the notch of the caulking groove (14) is provided with a second internal thread, an annular blocking cover (16) is arranged in the caulking groove (14), the outer side of the annular blocking cover (16) is provided with a second external thread, and the second external thread is screwed and fixed with the second internal thread.

7. The dual reinforcement leak-proof locating hydraulic pipe fitting joint of claim 6, wherein: the end part of the annular blocking cover (16) far away from the joint seat (2) is provided with an operation groove (17), and the operation groove (17) is arranged along the radial direction of the annular blocking cover (16).