Buckled anti-pull-off hose combination joint

Abstract

The utility model provides a buckling-pressing anti-pull-off hose combination joint which comprises a joint body, an inserting barrel fixedly connected to the end portion of the joint body and a sealing barrel connected to the outer portion of the inserting barrel in a sleeved mode, a first baffle ring is arranged on the outer wall of the joint body and located in the sealing barrel, and a second baffle ring is arranged on the outer wall of the joint body and located in the sealing barrel. A second baffle ring is arranged at the end, close to the connector body, of the sealing cylinder, external threads are arranged on the outer wall of the connector body and located outside the sealing cylinder, the connector body is sleeved with an abutting sleeve, internal threads are arranged on the inner wall of the abutting sleeve, the internal threads and the external threads are fixed in a screwed mode, and the sealing cylinder is arranged on the outer wall of the abutting sleeve. The abutting sleeve abuts against the sealing cylinder, so that the second baffle ring abuts against the first baffle ring. When the combined joint is assembled, the sealing cylinder does not need to be forcibly sleeved on the outer side of the joint body, so that the combined joint has the advantage that the assembly is not easily influenced.

Description

Technical Field

[0001] The utility model relates to a hose joint, in particular to a buckled and anti-pull-out hose combined joint. Background Art

[0002] At present, a Chinese patent with the announcement number CN216923616U discloses a crimping hose connector, including a connector and a locking nut, wherein a connecting cylinder is fixedly connected to the connector, a connecting ring is fixedly connected to the locking nut, and the connecting ring is rotatably connected to the connecting cylinder through a connecting piece. An inserting cylinder for connecting a hose is arranged at one end of the connector away from the connecting cylinder, a second retaining ring and a limiting ring are fixedly connected to the inserting cylinder, and the limiting ring is located at the side of the second retaining ring away from the connector, a sealing cylinder is sleeved on the inserting cylinder, a convex ring is fixedly connected to the inner wall of the sealing cylinder, a clamping groove is provided on the convex ring, and the limiting ring is located in the clamping groove. However, in the above-mentioned crimping hose connector, the inner diameter of the convex ring is smaller than the outer diameter of the second retaining ring and the limiting ring, so it is difficult to control the convex ring to pass over the second retaining ring or the limiting ring and clamp the convex ring into the clamping groove, which will hinder the assembly of the above-mentioned crimping hose connector. Summary of the invention

[0003] In view of this, the utility model aims to provide a buckled and anti-pull-out hose combination joint, which has the advantage that the assembly is not easily affected.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a buckled anti-pullout hose combination joint, comprising a joint body, a plug-in tube fixedly connected to the end of the joint body, and a sealing tube sleeved on the outside of the plug-in tube, a first retaining ring is provided at the outer wall of the joint body, the first retaining ring is located inside the sealing tube, a second retaining ring is provided at the end of the sealing tube close to the joint body, an external thread is provided at the outer wall of the joint body, the external thread is located outside the sealing tube, a tightening sleeve is provided on the outside of the joint body, an internal thread is provided on the inner wall of the tightening sleeve, the internal thread is screwed and fixed with the external thread, the tightening sleeve is in conflict with the sealing tube, so that the second retaining ring is tightly pressed against the first retaining ring.

[0005] Through the above technical solution, the two ends of the joint body are named as the connection end and the assembly end, respectively, wherein the plug-in sleeve is fixedly connected to the assembly end of the joint body. When assembling the above-mentioned combined joint, the sealing sleeve is put on the outside of the joint body through the connection end, and the sealing sleeve is controlled to slide toward the assembly sleeve of the joint body until the second retaining ring touches the first retaining ring, and then the tightening sleeve is put on the outside of the joint body through the connection end, and the tightening sleeve is controlled to slide toward the external thread. When the internal thread at the inner wall of the tightening sleeve touches the external thread at the outer wall of the joint body, the tightening sleeve is rotated to connect the tightening sleeve with the joint body thread, and then the tightening sleeve is continuously rotated until the tightening sleeve touches the sealing sleeve, and the second retaining ring is tightly pressed against the first retaining ring, at which time the above-mentioned combined joint is assembled. When assembling the combined joint set as above, there is no need to forcibly put the sealing sleeve on the outside of the joint body, which has the advantage that the assembly is not easily affected.

[0006] Preferably, a sealing ring is sleeved on the outside of the joint body, and the sealing ring is clamped and fixed by the first retaining ring and the second retaining ring.

[0007] Through the above technical solution, after the sealing ring is clamped and fixed by the first retaining ring and the second retaining ring, the gap between the first retaining ring and the second retaining ring can be sealed, thereby improving the sealing performance of the above combined joint.

[0008] Preferably, a convex rib is provided on the outer wall of the first retaining ring, and the convex rib is embedded in the sealing ring.

[0009] Through the above technical solution, when the sealing ring is clamped and fixed by the first retaining ring and the second retaining ring, the convex rib is embedded in the sealing ring, which can be used to limit the sealing ring.

[0010] Preferably, a wear-resistant ring is rotatably connected to the end of the abutting sleeve, a central axis of the wear-resistant ring coincides with a central axis of the abutting sleeve, and the wear-resistant ring abuts against the sealing cylinder.

[0011] Through the above technical solution, a wear-resistant ring is arranged at the end of the tightening sleeve, which can reduce the wear of the tightening sleeve and the sealing tube, thereby increasing the service life of the above-mentioned combined joint.

[0012] Preferably, a convex ring is provided at the end of the tightening sleeve, the convex ring passes through the center of the wear-resistant ring, and the outer wall of the convex ring is in contact with the inner wall of the wear-resistant ring, and an outer flange is provided at the end of the wear-resistant ring, and the external thread of the tightening sleeve is connected with an installation sleeve, and the installation sleeve presses the outer flange against the tightening sleeve.

[0013] Through the above technical solution, the convex ring passing through the center of the wear-resistant ring can be used to support and limit the wear-resistant ring, and the installation sleeve threadedly connected to the tightening sleeve presses the outer flange against the tightening sleeve, making the disassembly and assembly of the wear-resistant ring more convenient and quick.

[0014] Preferably, an oil filling hole is opened on the outer wall of the mounting sleeve, the oil filling hole is communicated with the inner cavity of the mounting sleeve, and a plug is embedded in the oil filling hole.

[0015] Through the above technical solution, lubricating oil or grease can be injected into the interior of the mounting sleeve through the oil injection hole during assembly, so that the relative rotation of the wear-resistant ring and the abutting sleeve becomes smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment;

[0017] Figure 2 for Figure 1 Enlarged view of part A.

[0018] Figure numerals: 1. connector body; 2. plug-in sleeve; 3. sealing sleeve; 4. first retaining ring; 5. second retaining ring; 6. tightening sleeve; 7. sealing ring; 8. convex rib; 9. wear-resistant ring; 10. convex ring; 11. outer flange; 12. mounting sleeve; 13. oil filling hole; 14. plug. Implementation

[0019] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0020] A buckle anti-pull-off hose combination joint, such as Figure 1 , Figure 2 As shown, it includes a joint body 1 , a plug-in sleeve 2 fixedly connected to the end of the joint body 1 , and a sealing sleeve 3 sleeved on the outside of the plug-in sleeve 2 .

[0021] A first retaining ring 4 is provided on the outer wall of the joint body 1, and the first retaining ring 4 is located inside the sealing cylinder 3. A second retaining ring 5 is provided at the end of the sealing cylinder 3 close to the joint body 1. An external thread is provided on the outer wall of the joint body 1, and the external thread is located outside the sealing cylinder 3. A tightening sleeve 6 is provided on the outer sleeve of the joint body 1, and an internal thread is provided on the inner wall of the tightening sleeve 6, and the internal thread is screwed and fixed with the external thread. The tightening sleeve 6 contacts the sealing cylinder 3, so that the second retaining ring 5 and the first retaining ring 4 are tightly pressed.

[0022] The outer sleeve of the joint body 1 is provided with a sealing ring 7, which is clamped and fixed by the first retaining ring 4 and the second retaining ring 5. The outer wall of the first retaining ring 4 is provided with a convex rib 8, which is embedded in the sealing ring 7.

[0023] The end of the abutting sleeve 6 is rotatably connected with a wear ring 9, the central axis of the wear ring 9 coincides with the central axis of the abutting sleeve 6, and the wear ring 9 is tightly abutted against the sealing tube 3. A convex ring 10 is provided at the end of the abutting sleeve 6, the convex ring 10 passes through the center of the wear ring 9, and the outer wall of the convex ring 10 abuts against the inner wall of the wear ring 9, and an outer flange 11 is provided at the end of the wear ring 9, and the external thread of the abutting sleeve 6 is connected with a mounting sleeve 12, and the mounting sleeve 12 presses the outer flange 11 against the abutting sleeve 6. An oil filling hole 13 is opened at the outer wall of the mounting sleeve 12, and the oil filling hole 13 is connected with the inner cavity of the mounting sleeve 12, and a plug 14 is embedded in the oil filling hole 13.

[0024] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A buckled anti-pull-off hose combination joint, comprising a joint body (1), a plug-in cylinder (2) fixedly connected to the end of the joint body (1), and a sealing cylinder (3) sleeved on the outside of the plug-in cylinder (2), wherein a first retaining ring (4) is arranged on the outer wall of the joint body (1), the first retaining ring (4) is located inside the sealing cylinder (3), and a second retaining ring (5) is arranged at the end of the sealing cylinder (3) close to the joint body (1), wherein: The outer wall of the joint body (1) is provided with an external thread, and the external thread is located outside the sealing tube (3). The outer sleeve of the joint body (1) is provided with a tightening sleeve (6), and the inner wall of the tightening sleeve (6) is provided with an internal thread, and the internal thread is screwed and fixed with the external thread. The tightening sleeve (6) is in contact with the sealing tube (3), so that the second retaining ring (5) and the first retaining ring (4) are tightly pressed against each other.

2. The buckled and anti-pull-off hose combined joint according to claim 1 is characterized in that: The outer sleeve of the joint body (1) is provided with a sealing ring (7), and the sealing ring (7) is clamped and fixed by the first retaining ring (4) and the second retaining ring (5).

3. The buckled and anti-pull-off hose combined joint according to claim 2 is characterized in that: A convex rib (8) is provided on the outer wall of the first retaining ring (4), and the convex rib (8) is embedded in the sealing ring (7).

4. The buckled and anti-pull-off hose combined joint according to claim 1 is characterized in that: The end of the abutting sleeve (6) is rotatably connected to a wear-resistant ring (9), the central axis of the wear-resistant ring (9) coincides with the central axis of the abutting sleeve (6), and the wear-resistant ring (9) abuts against the sealing sleeve (3).

5. The buckled and anti-pull-off hose combined joint according to claim 4 is characterized in that: The end of the abutting sleeve (6) is provided with a convex ring (10), the convex ring (10) passes through the center of the wear-resistant ring (9), and the outer wall of the convex ring (10) is in contact with the inner wall of the wear-resistant ring (9), the end of the wear-resistant ring (9) is provided with an outer flange (11), the external thread of the abutting sleeve (6) is connected with a mounting sleeve (12), and the mounting sleeve (12) presses the outer flange (11) against the abutting sleeve (6).

6. The buckled and anti-pull-off hose combined joint according to claim 5 is characterized in that: An oil filling hole (13) is provided on the outer wall of the installation sleeve (12), the oil filling hole (13) is communicated with the inner cavity of the installation sleeve (12), and a plug (14) is embedded in the oil filling hole (13).

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