Split quick-connect hose connector

Abstract

The present invention belongs to the technical field of hydraulic system joints, and specifically relates to a split quick-plug hose joint, comprising a connecting seat, a hose core connected to the connecting seat, and also comprising a sealing ring, a supporting ring, a gasket, an elastic ring, a locking buckle, and a plug. A connecting cavity is provided on the rear side of the connecting seat, a locking cavity is provided on the rear side of the connecting cavity, the sealing ring is arranged at a step surface formed at the junction of the connecting cavity and the locking cavity, the front end surface of the sealing ring is in conflict with the step surface, the supporting ring is arranged on the rear side of the sealing ring, the gasket is arranged on the rear side of the supporting ring, the front end of the plug is threadedly matched with the inner wall of the locking cavity, an inner cavity is provided at the front part of the plug, the elastic ring and the locking buckle are arranged in the inner cavity, the locking buckle is a conical structure, the end with a smaller diameter of the locking buckle is at the front side, the elastic ring sleeve is arranged on the outer side of the front end with a smaller diameter of the locking buckle, the front end of the hose core is provided with a connecting portion inserted into the connecting cavity to connect to the connecting seat, an unlocking ring which can slide along the axial direction is arranged in the locking groove, the connection is reliable, and the installation and disassembly are convenient and quick.

Description

Technical Field

[0001] The invention belongs to the technical field of hydraulic system joints, and in particular relates to a split quick-plug hose joint. Background Art

[0002] Hose connectors are important components for connecting pipelines in hydraulic systems and are widely used. Common hose connectors on the market are connected to the connection end of the hydraulic device through threads. They need to be tightened with a wrench or other auxiliary tools when in use. When disconnected, they also need to be disassembled with a wrench or other tools. The installation and operation efficiency is low, and it is very inconvenient to use in places with narrow installation space. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a split quick-plug hose connector in view of the above-mentioned defects, which has reliable connection, convenient and quick installation and disassembly, simple structure and low manufacturing cost.

[0004] The technical solution adopted by the present invention to solve the technical problem is as follows:

[0005] A split quick-plug hose connector, comprising a connecting seat, a hose core connected to the connecting seat, and also comprising a sealing ring, a supporting ring, a gasket, an elastic ring, a locking buckle, and a plug. The front end of the connecting seat is an external threaded connection structure connected to a hydraulic system, a connecting cavity is provided on the rear side of the connecting seat, a locking cavity with an inner diameter larger than that of the connecting cavity is provided on the rear side of the connecting cavity, an axial hole communicating with the connecting cavity is provided at the axial center of the external threaded connection structure, the sealing ring is arranged at a step surface formed at the junction of the connecting cavity and the locking cavity, the front end surface of the sealing ring is in conflict with the step surface, and the The support ring is arranged on the rear side of the sealing ring, and the front end face of the support ring contacts the rear end face of the sealing ring. The gasket is arranged on the rear side of the support ring, and the front end face of the gasket contacts the rear end face of the support ring. The plug is detachably connected to the rear end of the connecting seat, and the front end of the plug extends into the locking cavity and cooperates with the inner wall thread of the locking cavity. The front end face of the plug contacts the rear end face of the gasket. An inner cavity opening forward is provided at the front of the plug. The elastic ring and the locking buckle are arranged in the inner cavity. The locking buckle is a conical structure. The end with a smaller diameter of the locking buckle is at the front side. The elastic ring sleeve is arranged at An inner groove is provided on the outer side of the front end of the locking buckle with a smaller diameter at the rear cavity wall of the inner cavity, and the rear end of the locking buckle with a larger diameter extends into the inner groove. The locking buckle is a petal structure composed of a plurality of arc-shaped petals distributed along the circumferential direction, and the plurality of arc-shaped petals can move radially toward / away from the axis of the connecting seat with the rear end and the inner groove as the axis, and the inner diameter of the front end of the locking buckle can be reduced / increased. The front end of the hose core is provided with a connecting portion inserted into the connecting cavity to connect to the connecting seat, the outer diameter of the connecting portion is consistent with the inner diameter of the connecting cavity, and the inner diameter of the sealing ring is smaller than the outer diameter of the connecting portion Under normal circumstances, the inner diameter of the front end of the locking buckle is smaller than the outer diameter of the connecting part, and a locking groove is provided on the outer peripheral surface of the connecting part. The inner edge of the front end surface of the locking buckle is provided with an L-shaped locking groove. After the connecting part is inserted into the connecting cavity, the front notch of the locking groove is inserted into the locking groove of the locking buckle to realize the axial locking of the connection between the hose core and the connecting seat. An unlocking ring that can slide axially is provided in the locking groove, and the ring body of the unlocking ring is provided with an unlocking groove. The connecting part continues to move forward, and the unlocking ring pushes the inner diameter of the front end of the locking buckle to become larger, and the front end of the locking buckle slides into the unlocking groove, unlocking the axial locking of the hose core and the connecting seat.

[0006] Preferably, the hose core is provided with an anti-slip structure at the rear side of the connecting portion to prevent the hose core from slipping off the connecting seat. After the hose core is connected and locked to the connecting seat, the front end face of the anti-slip structure abuts against the rear end face of the connecting seat or the rear end face of the plug.

[0007] Preferably, the anti-drop structure is a detachable anti-drop buckle arranged on the hose core at the rear side of the connecting seat. After the hose core is connected and locked with the connecting seat, the front end face of the anti-drop buckle abuts against the rear end face of the connecting seat.

[0008] Preferably, an axial hole penetrating front to back is provided at the axial center of the hose core, the rear end of the hose core is a bamboo joint head connected to the connecting pipe, and the outer peripheral surface of the bamboo joint head is a serrated barb structure.

[0009] Preferably, the outer diameter of the gasket is greater than the outer diameter of the support ring, and a through hole for a matching connection portion is provided at the axial center of the gasket and the plug.

[0010] Preferably, a sealing cavity is provided in the connection seat at the sealing ring, the sealing ring and the support ring are arranged in the sealing ring, and the inner diameter of the connection cavity is smaller than the inner diameter of the sealing ring and smaller than the inner diameter of the locking cavity.

[0011] Preferably, an elastic ring groove matching the elastic ring is provided in the inner cavity at a position corresponding to the elastic ring.

[0012] Preferably, the outer diameter of the unlocking ring is consistent with the outer diameter of the connecting portion.

[0013] Preferably, the axis center lines of the connecting cavity, the locking cavity and the axial hole are at the axis center of the connecting seat, and the axis center line of the connecting seat and the axis center line of the hose core are on the same straight line.

[0014] Preferably, the inner groove is an arc-shaped groove, and the rear end surface of the arc-shaped petal is an arc-shaped structure that matches the inner groove.

[0015] The beneficial effects of the present invention are as follows: by adopting the above scheme, the split quick-plug hose connector of the present invention is easy to use, can be manually connected and disassembled without tools, thereby improving the installation and operation efficiency. After connection, the locking of the connecting seat and the hose core is reliable. The split quick-plug hose connector has a simple and sophisticated structure and has the advantage of low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the cross-sectional structure of an embodiment of the present invention.

[0018] Figure 2 The figure is a schematic diagram of the cross-sectional structure of a connecting socket in one embodiment of the present invention.

[0019] Figure 3 It is a schematic structural diagram of a locking buckle in an embodiment of the present invention.

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of a locking buckle in one embodiment of the present invention.

[0021] Figure 5 The figure is a schematic diagram of the cross-section structure of a plug in one embodiment of the present invention.

[0022] Figure 6 It is a partial cross-sectional schematic diagram of the unlocking ring in one embodiment of the present invention.

[0023] Figure 7A side view of an unlocking ring in an embodiment of the present invention

[0024] Among them: 1 is a connecting seat, 11 is a connecting cavity, 12 is a sealing ring, 13 is a locking cavity,

[0025] 2 is the hose core, 21 is the connecting part, 22 is the locking groove,

[0026] 3 is a sealing ring, 4 is a support ring, 5 is a gasket, 6 is an elastic ring,

[0027] 7 is a locking buckle, 71 is an arc-shaped petal, 711 is a locking groove,

[0028] 8 is a plug, 81 is an inner cavity, 811 is an inner groove, 82 is an elastic ring groove,

[0029] 9 is an unlocking ring, 91 is an unlocking groove, and 10 is an anti-tripping. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] Example 1: Reference Figure 1 A split quick-plug hose connector includes a connecting seat 1, a hose core 2 connected to the connecting seat 1, and also includes a sealing ring 3, a support ring 4, a gasket 5, an elastic ring 6, a locking buckle 7, a plug 8, and an unlocking ring 9. Figure 2 The front end of the connecting seat 1 is an external thread connection structure connected to the hydraulic system, the rear side of the connecting seat 1 is provided with a connecting cavity 11, the rear side of the connecting cavity 11 is provided with a sealing ring 12 whose inner diameter is larger than that of the connecting cavity 11, the rear side of the sealing ring 12 is a locking cavity 13 whose inner diameter is larger than that of the sealing ring 12, an axial hole communicating with the connecting cavity 11 is provided at the axis center of the external thread connection structure, the axis center line of the connecting cavity 11, the sealing ring 12, the locking cavity 13, and the axis center line is the axis center line of the connecting seat 1, the axis center line of the connecting seat 1 and the hose core 2 are on the same straight line, the sealing ring 3 and the support ring 4 are arranged at the sealing cavity 12, the front end face of the sealing ring 3 conflicts with the step surface at the junction of the connecting cavity 11 and the sealing cavity 12, and the support ring 4 is arranged at the sealing ring 3 On the rear side, the front end face of the support ring 4 contacts the rear end face of the sealing ring 3, and the support ring 4 tightly limits the sealing ring 3 at the step surface on the front side of the sealing cavity. The front end of the hose core 2 is provided with a connecting part 21 inserted into the connecting cavity 11 to connect the connecting seat 1. The outer diameter of the connecting part 21 is consistent with the inner diameter of the connecting cavity 11, and the outer diameter of the connecting part 21 is smaller than the inner diameter of the sealing ring 3. The inner diameter of the support ring 4 is not smaller than the outer diameter of the connecting part 21. After the connecting part 21 is inserted into the connecting cavity 11 to realize the connection between the hose core 2 and the connecting column 1, the sealing ring 3 is sleeved on the connecting part 21 to form a seal at the step surface, forming a double sealing structure of step surface seal + sealing ring seal, which effectively ensures the sealing of the connection between the hose core 2 and the connecting seat 1.

[0032] The washer 5 is arranged in the locking cavity 13, and the washer 5 is at the rear side of the support ring 4, the front end face of the washer 5 abuts against the rear end face of the support ring 4, the washer 5 forms a tight circumferential limit for the support ring 4, the outer diameter of the washer 5 is consistent with the inner diameter of the locking cavity 13, the axial center of the washer 5 is provided with a through hole for matching the connecting portion 21, and the inner diameter of the through hole of the washer 5 is not less than the outer diameter of the connecting portion 21, the plug 8 is arranged at the rear end of the connecting seat 1, the front end of the plug 8 extends into the locking cavity 13 and is threadedly matched with the inner wall of the locking cavity 13, the front end face of the plug 8 abuts against the rear end face of the washer 5, the plug 8 forms a reliable axial limit for the washer 5, effectively ensuring the stable position of the sealing ring 3, so as to promote and improve the sealing performance of the hose connector, the outer diameters of the support ring 4, the washer 5, and the plug 8 increase in sequence, this structure is easy to assemble, effectively improves the assembly accuracy, and two step surface sealing structures are formed in the connecting seat 1, which improves the sealing performance of the hose connector.

[0033] Specifically, refer to Figure 5 The front part of the plug 8 is provided with an inner cavity 81 opening forward, and the elastic ring 6 and the locking buckle 7 are both arranged in the inner cavity 81. Figure 3 , Figure 4 The locking buckle 7 is a conical structure, and the end with a smaller diameter of the locking buckle 7 is at the front side. The elastic ring 6 is sleeved on the outer side of the front end with a smaller diameter of the locking buckle 7. The locking buckle 7 is a petal structure composed of four arc-shaped petals 71 distributed along the circumference. The rear end faces of the four arc-shaped petals 71 are all arc-shaped structures. An inner groove 811 is provided at the rear cavity wall of the inner cavity 81. The rear end of the arc-shaped petal 71 extends into the inner groove 811, and cooperates with the inner groove 811 structure to make the front end of the arc-shaped petal 71 active in the radial direction. The arc-shaped petal 71 can move its front end radially toward / away from the axis of the connecting seat with its rear end and the inner groove 811 as the axis, so as to realize the reduction / increase of the inner diameter of the front end of the locking buckle 7. The arc-shaped inner groove facilitates the radial flipping movement of the arc-shaped petal 71. Normal 71, and the locking groove 711 of the locking buckle 71 is inserted into the axial connection of the hose core 2 and the connection seat 1 to prevent the hose core 2 from falling out.

[0034] Specifically, refer to Figure 6 , Figure 7, an unlocking ring 9 that can slide in the axial direction is provided in the locking groove 22, and the ring body of the unlocking ring 9 is provided with an unlocking groove 91. When unlocking is required, the hose core 2 is pushed forward, and the connecting part 21 continues to move forward in the connecting cavity 11. The unlocking ring 9 contacts the inner side wall of the front end of the locking buckle 7, and the front end inner diameter of the locking buckle 7 is increased. The front end of the locking buckle 7 slides into the unlocking groove 91, and the hose core 2 is pulled backward. Since the outer diameter of the unlocking ring 9 is consistent with the outer diameter of the connecting part 21, the hose core 2 can be disengaged from the connecting seat 1, and the hose core 2 and the connecting seat 1 are unlocked. The front and rear side walls of the unlocking groove 91 are inclined, which is convenient for cooperation with the locking buckle, and can reduce the locking force. The hose of the hose connector The connection, locking, unlocking and disengagement of the core 2 and the connecting seat 1 are simple and easy to operate quickly. The quick-insert locking / unlocking structure formed by the locking buckle 7, the locking groove 22 and the plug 8 is simple and sophisticated, easy to operate, and has a low manufacturing cost. The hose connector has a very good application prospect. The locking buckle 7 composed of four arc-shaped petals 71 has a sophisticated structure, can be used repeatedly, and has a long service life. The conical locking buckle is used to convert the radial elastic force into an axial locking force. Only a small radial elastic force is required to achieve a large axial locking force. The structure is sophisticated, which significantly improves the locking force, significantly improves the locking reliability, and significantly improves the reliability of the use of the connector.

[0035] The hose core 2 is provided with an anti-drop buckle 10 at the rear side of the connecting part 21 to prevent the hose core 2 from falling off the connecting seat 1. The anti-drop buckle 10 is a spring sheet structure with an opening. The corresponding part of the hose core 2 is provided with an anti-drop groove matching the anti-drop buckle 10. The anti-drop buckle 10 and the anti-drop groove are detachably connected. When connected, the anti-drop buckle 10 is stuck in the anti-drop groove to limit the length of the hose core inserted into the connecting seat. In this embodiment, the rear side of the plug is on the rear and outer side of the connecting seat. After the connection is locked, the front end face of the anti-drop buckle 10 conflicts with the rear end face of the plug 8, limiting the further forward movement of the connecting part 21, thereby avoiding triggering the unlocking operation of the locking buckle and the unlocking ring. The anti-drop buckle can be removed before unlocking to achieve unlocking of the hose core and the connecting seat.

[0036] An axial hole running through the front and back is provided at the axial center of the hose core 2. The rear end of the hose core 2 is a bamboo head connected to the connecting pipe. The outer peripheral surface of the bamboo head is a serrated barb structure, which is convenient for connection with the connecting pipe. An elastic ring groove 82 matching the elastic ring 6 is opened in the inner cavity 81 of the plug 8 at the position corresponding to the elastic ring 6. The elastic ring groove 82 is used to set the elastic ring 82 to stabilize the position of the elastic ring 8 and ensure sufficient locking force.

[0037] The working process of the present invention is as follows: first, the external thread connection structure of the connecting seat 1 is connected to the hydraulic system port. When in use, the anti-drop buckle 10 is clamped in the anti-drop buckle groove of the hose core 2, and then the connecting part 21 of the hose core 2 is inserted into the connecting seat 1. Since the front end inner diameter of the locking buckle 7 is smaller than the diameter of the connecting part 21 of the hose core, under the action of thrust, the locking buckle 7 is deformed by squeezing the elastic ring 6, so that the connecting part 21 of the hose core 2 passes through the front end of the locking buckle 7. Since the diameter of the locking groove 22 of the hose core 1 is smaller than the front end inner diameter of the locking buckle 7, the locking buckle 7 is in a locked state, and the L-shaped locking groove at the front end of the locking buckle 7 is clamped at the front side wall of the locking groove. Under the sealing effect of the sealing ring, the hose core 2 and the connecting seat 1 are reliably sealed; when disassembly is required, only the anti-drop buckle 10 needs to be removed, and the hose core 1 is pushed into the inside of the connecting seat. Under the push of the unlocking ring 9, the unlocking ring pushes the locking buckle to open it, and the hose core can be smoothly taken out with the sliding of the unlocking ring to complete the disassembly.

[0038] Embodiment 2: In this embodiment, after the plug 8 is installed on the connecting seat 1, the rear end face of the plug 8 is located on the front side of the rear end face of the connecting seat 1, and the front end of the anti-drop buckle 10 abuts against the rear end face of the connecting seat 1 to limit and prevent dropout.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A split quick-plug hose connector, comprising a connection seat and a hose core connected to the connection seat, characterized in that: It also includes a sealing ring, a support ring, a gasket, an elastic ring, a locking buckle, a plug, an unlocking ring, and an anti-drop buckle. The front end of the connecting seat is an external thread connection structure connected to the hydraulic system. The rear side of the connecting seat is provided with a connecting cavity, and the rear side of the connecting cavity is provided with a locking cavity whose inner diameter is larger than that of the connecting cavity. An axial hole communicating with the connecting cavity is provided at the axial center of the external thread connection structure. The sealing ring is arranged at a step surface formed at the junction of the connecting cavity and the locking cavity, and the front end face of the sealing ring contacts the step surface. The support ring is arranged at the rear side of the sealing ring, and the front end face of the support ring contacts the rear end face of the sealing ring. The gasket is arranged at On the rear side of the support ring, the front end face of the washer is in contact with the rear end face of the support ring, the plug is detachably connected to the rear end of the connecting seat, the front end of the plug extends into the locking cavity and cooperates with the inner wall thread of the locking cavity, the front end face of the plug is in contact with the rear end face of the washer, and the front part of the plug is provided with an inner cavity opening forward, the elastic ring and the locking buckle are arranged in the inner cavity, the locking buckle is a conical structure, the end with a smaller diameter of the locking buckle is at the front side, the elastic ring sleeve is arranged on the outer side of the front end with a smaller diameter of the locking buckle, an inner groove is provided at the rear cavity wall of the inner cavity, and the rear end with a larger diameter of the locking buckle extends into the inner groove, and the locking buckle is composed of multiple circumferentially divided The petal structure is composed of arc-shaped petals of the cloth, and the multiple arc-shaped petals can move radially towards / away from the axis of the connecting seat with the rear end and the inner groove as the axis. The inner diameter of the front end of the locking buckle can be changed to be smaller / larger. The front end of the hose core is provided with a connecting part inserted into the connecting cavity to connect the connecting seat. The outer diameter of the connecting part is consistent with the inner diameter of the connecting cavity, and the inner diameter of the sealing ring is smaller than the outer diameter of the connecting part. Under normal circumstances, the inner diameter of the front end of the locking buckle is smaller than the outer diameter of the connecting part, and a locking groove is provided on the outer peripheral surface of the connecting part. The inner edge of the front end surface of the locking buckle is provided with an L-shaped locking groove. After the connecting part is inserted into the connecting cavity, the front notch of the locking groove is inserted into the connecting cavity. The locking groove of the locking buckle realizes axial locking of the connection between the hose core and the connecting seat. An unlocking ring which can slide axially is provided in the locking groove. The ring body of the unlocking ring is provided with an unlocking groove. The connecting part continues to move forward, and the unlocking ring pushes the inner diameter of the front end of the locking buckle to become larger. The front end of the locking buckle slides into the unlocking groove, unlocking the axial locking of the hose core and the connecting seat. The hose core is provided with an anti-drop buckle at the rear side of the connecting part to prevent the hose core from falling out of the connecting seat. The anti-drop buckle is a spring sheet structure with an opening, and an anti-drop groove cooperating with the anti-drop buckle is provided at the corresponding part of the hose core. The anti-drop buckle and the anti-drop groove are detachably connected. When connected, the anti-drop buckle is stuck in the anti-drop groove.

2. The split quick-plug hose connector according to claim 1, characterized in that: After the hose core is connected and locked with the connecting seat, the front end surface of the anti-dropping buckle contacts with the rear end surface of the connecting seat.

3. The split quick-plug hose connector according to claim 1, characterized in that: An axial hole penetrating front and back is arranged at the axial center of the hose core, the rear end of the hose core is a bamboo joint head connected to the connecting pipe, and the outer peripheral surface of the bamboo joint head is a sawtooth barb structure.

4. The split quick-plug hose connector according to claim 1, characterized in that: The outer diameter of the gasket is greater than the outer diameter of the support ring, and through holes for matching the connecting parts are provided at the axial centers of the gasket and the plug.

5. The split quick-connect hose connector according to claim 1, characterized in that: A sealing cavity is provided in the connection seat at the sealing ring, and the sealing ring and the supporting ring are arranged in the sealing cavity. The inner diameter of the connection cavity is smaller than the inner diameter of the sealing cavity and smaller than the inner diameter of the locking cavity.

6. The split quick-plug hose connector according to claim 1, characterized in that: An elastic ring groove matching the elastic ring is provided in the inner cavity at a position corresponding to the elastic ring.

7. The split quick-connect hose connector according to claim 1, characterized in that: The outer diameter of the unlocking ring is consistent with the outer diameter of the connecting part.

8. The split quick-connect hose connector according to claim 1, characterized in that: The axis lines of the connecting cavity, the locking cavity, the axial hole and the connecting seat are all on the same straight line as the axis line of the hose core.

9. The split quick-connect hose connector according to claim 1, characterized in that: The inner groove is an arc-shaped groove, and the rear end surface of the arc-shaped petal is an arc-shaped structure that matches the inner groove.

Images