Internal and external double-locking anti-leakage hydraulic joint

Abstract

The utility model provides an inside and outside double locking anti-leakage hydraulic joint which comprises a water inlet joint, a water outlet joint and a connecting sleeve, a supporting baffle ring is arranged on the outer wall of the water inlet joint, a sealing ring is sleeved on the outer side of the water inlet joint, and the water inlet end of the water outlet joint is sleeved on the outer side of the water outlet end of the water inlet joint. The water outlet connector compresses the sealing ring to the supporting baffle ring, the connecting sleeve is arranged on the outer side of the water inlet connector in a sleeving mode, a limiting baffle ring is arranged at one end of the connecting sleeve and abuts against the supporting baffle ring, the other end of the connecting sleeve is in threaded connection with the outer wall of the water outlet connector, and a locking baffle ring is arranged on the outer wall of the water outlet connector. A plurality of locking units are arranged on the outer wall of the connecting sleeve, each locking unit comprises an extension rod and a locking block arranged on the inner wall of the extension rod, and the locking blocks abut against the end, away from the water inlet connector, of the locking baffle ring. The hydraulic connector is locked internally and externally in the using process, and has the advantages that leakage is not prone to occurring, and the sealing effect is not prone to being affected.

Description

Technical Field

[0001] The utility model relates to a hydraulic joint, in particular to an internal and external double locking anti-leakage hydraulic joint. Background Art

[0002] At present, a Chinese patent with the announcement number CN210196697U discloses a hydraulic pipe sealing joint, including a first joint, a hydraulic pipe and a second joint. The first joint includes a hollow tubular tube body, and the outer peripheral surface of the tube body is arranged with an external thread. The outer peripheral surface of the hydraulic pipe is arranged with a Kara ring, and the side of the Kara ring facing the first joint is arranged with a sealing ring. The second joint includes a clamping ring and a locking nut connected to the clamping ring, the clamping ring is pressed on the Kara ring, the locking nut is arranged in the direction of the first joint, and the inner peripheral surface of the locking nut is arranged with an internal thread that can cooperate with the external thread. When the second joint is connected to the first joint, the clamping ring drives the Kara ring to clamp the sealing ring, thereby achieving a sealing effect. However, during the use of the above-mentioned hydraulic pipe sealing joint, the second joint is prone to reverse and loosen due to external influences such as vibration, which will affect the sealing effect of the above-mentioned hydraulic pipe sealing joint to a certain extent. Summary of the invention

[0003] In view of this, the utility model aims to provide an internal and external double locking anti-leakage hydraulic joint, which has the advantage that the sealing effect is not easily affected.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: an internal and external double locking anti-leakage hydraulic joint, comprising an inlet joint, an outlet joint and a connecting sleeve, a supporting retaining ring is arranged at the outer wall of the inlet joint, a sealing ring is arranged on the outer side of the inlet joint, the water inlet end of the outlet joint is sleeved on the outside of the water outlet end of the inlet joint, the water outlet joint presses the sealing ring on the supporting retaining ring, the connecting sleeve is sleeved on the outside of the inlet joint, a limiting retaining ring is arranged at one end of the connecting sleeve, the limiting retaining ring abuts against the supporting retaining ring, the other end of the connecting sleeve is threadedly connected to the outer wall of the outlet joint, a locking retaining ring is arranged at the outer wall of the outlet joint, a plurality of locking units are arranged at the outer wall of the connecting sleeve, and the plurality of locking units are evenly distributed along the circumference of the connecting sleeve, the locking unit comprises an extension rod, a locking block arranged at the inner wall of the extension rod, and the locking block abuts against the end of the locking retaining ring away from the inlet joint.

[0005] Through the above technical solution, the limit retaining ring and the support retaining ring are tightly pressed against each other, which can be used to limit the movement of the connecting sleeve away from the water outlet joint. The extension rod is connected to the outer wall of the connecting sleeve, so that the extension rod and the locking block cooperate with each other to limit the movement of the connecting sleeve toward the water outlet joint. In summary, the above hydraulic joint is locked internally and externally during use, and has the advantages of being difficult to leak and the sealing effect is not easily affected. A plurality of locking units are evenly distributed along the circumference of the connecting sleeve, which can limit the connecting sleeve more stably and effectively.

[0006] Preferably, a sliding seat is provided on the outer wall of the connecting sleeve, a sliding hole is axially penetrated in the sliding seat, the extension rod is slidably connected in the sliding hole, a clamping bolt is threadedly connected on the outer wall of the sliding seat, and the threaded section of the clamping bolt clamps the extension rod.

[0007] Through the above technical solution, the extension rod is slidably connected in the sliding hole, and the extension rod is fixedly connected to the sliding seat by a tightening bolt. In this way, when the connecting sleeve is installed, the extension rod can be controlled to slide out of the sliding seat, so that the installation process of the connecting sleeve is not easily affected.

[0008] Preferably, a rubber sheet is fixedly connected to the outer wall of the extension rod, and the threaded section of the tightening bolt tightens against the rubber sheet.

[0009] Through the above technical solution, the rubber sheet arranged on the outer wall of the extension rod can increase the friction between the abutting bolt and the extension rod, so as to ensure that the extension rod is not easy to slide during the use of the above hydraulic joint. In addition, the threaded section of the abutting bolt abuts against the rubber sheet, which can protect the extension rod and make the surface of the extension rod not easy to wear or deform.

[0010] Preferably, a dovetail groove is formed on the outer wall of the extension rod, and a rubber dovetail block is integrally formed on the inner wall of the rubber sheet, and the rubber dovetail block is adhesively fixed in the dovetail groove.

[0011] Through the above technical solution, the dovetail groove and the rubber dovetail block cooperate with each other, which can effectively increase the contact area between the extension rod and the rubber sheet, thereby improving the connection strength between the extension rod and the rubber sheet.

[0012] Preferably, an operating ring is rotatably sleeved between the plurality of sliding seats, a plurality of transmission teeth are provided at the end of the operating ring close to the water outlet joint, and the plurality of transmission teeth are evenly distributed along the circumference of the operating ring, and a gear is fixedly connected to the head of the tightening bolt, and the gear is meshed with the transmission teeth.

[0013] Through the above technical solution, when the operating ring is rotated, all gears can be driven to rotate through a plurality of transmission teeth, and the corresponding tightening bolts can be driven to rotate through the gears. Through the above arrangement, all tightening bolts can be rotated at the same time by simply rotating the operating ring, making the disassembly and assembly process of the above hydraulic joint more convenient.

[0014] Preferably, an arc-shaped positioning groove is opened on the outer wall of the slide seat, and an arc-shaped positioning block is arranged on the inner wall of the operating ring. The arc-shaped positioning block is slidably connected to the arc-shaped positioning groove, and the length of the arc-shaped positioning block is greater than the distance between the two slide seats.

[0015] Through the above technical solution, the arc-shaped positioning groove and the arc-shaped positioning block cooperate with each other to limit and guide the operating ring, so that the operating ring is not easy to slide axially during the rotation process. The length of the arc-shaped positioning block is greater than the distance between the two slide seats, so that during the rotation of the operating ring, the arc-shaped positioning block always rotates between the arc-shaped positioning grooves.

[0016] Preferably, a connecting bolt is provided on the inner wall of the arc-shaped positioning block, a threaded section of the connecting bolt passes through the arc-shaped positioning block and is threadedly connected to the operating ring, and a head of the connecting bolt presses and fixes the arc-shaped positioning block to the operating ring.

[0017] Through the above technical solution, the arc-shaped positioning block is pressed and fixed with the operating ring by connecting bolts, so that the disassembly and assembly of the above hydraulic joint becomes more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an embodiment;

[0019] Figure 2 for Figure 1 Enlarged view of part A.

[0020] : 1. water inlet joint; 2. water outlet joint; 3. connecting sleeve; 4. supporting retaining ring; 5. sealing ring; 6. limiting retaining ring; 7. locking retaining ring; 8. locking unit; 81. extension rod; 82. locking block; 9. sliding seat; 10. sliding hole; 11. tightening bolt; 12. rubber sheet; 13. dovetail groove; 14. rubber dovetail block; 15. operating ring; 16. transmission tooth; 17. gear; 18. arc-shaped positioning groove; 19. arc-shaped positioning block; 20. connecting bolt. Implementation

[0021] 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.

[0022] A double locking anti-leakage hydraulic joint, such as Figure 1 , Figure 2As shown, it includes an inlet joint 1, an outlet joint 2 and a connecting sleeve 3. A supporting retaining ring 4 is provided at the outer wall of the inlet joint 1, and a sealing ring 5 is provided on the outer side of the inlet joint 1. The water inlet end of the outlet joint 2 is sleeved on the outer side of the water outlet end of the inlet joint 1, and the water outlet joint 2 presses the sealing ring 5 against the supporting retaining ring 4. The connecting sleeve 3 is sleeved on the outer side of the inlet joint 1, and a limiting retaining ring 6 is provided at one end of the connecting sleeve 3, and the limiting retaining ring 6 abuts against the supporting retaining ring 4, and the other end of the connecting sleeve 3 is threadedly connected to the outer wall of the outlet joint 2.

[0023] A locking ring 7 is provided on the outer wall of the water outlet joint 2, and a plurality of locking units 8 are provided on the outer wall of the connecting sleeve 3, and the plurality of locking units 8 are evenly distributed along the circumference of the connecting sleeve 3. The locking unit 8 includes an extension rod 81 and a locking block 82 provided on the inner wall of the extension rod 81, and the locking block 82 presses against the end of the locking ring 7 away from the water inlet joint 1.

[0024] A sliding seat 9 is arranged on the outer wall of the connecting sleeve 3 , a sliding hole 10 is axially penetrated in the sliding seat 9 , the extension rod 81 is slidingly connected in the sliding hole 10 , a tightening bolt 11 is threadedly connected on the outer wall of the sliding seat 9 , and the threaded section of the tightening bolt 11 tightens the extension rod 81 .

[0025] The outer wall of the extension rod 81 is fixedly connected with a rubber sheet 12, and the threaded section of the tightening bolt 11 tightens the rubber sheet 12. The outer wall of the extension rod 81 is provided with a dovetail groove 13, and the inner wall of the rubber sheet 12 is integrally formed with a rubber dovetail block 14, which is adhesively fixed in the dovetail groove 13.

[0026] An operating ring 15 is rotatably sleeved between the plurality of slide seats 9 , and a plurality of transmission teeth 16 are provided at the end of the operating ring 15 close to the water outlet joint 2 , and the plurality of transmission teeth 16 are evenly distributed along the circumference of the operating ring 15 , and a gear 17 is fixedly connected to the head of the tightening bolt 11 , and the gear 17 meshes with the transmission teeth 16 .

[0027] An arc-shaped positioning groove 18 is formed on the outer wall of the slide 9 , and an arc-shaped positioning block 19 is provided on the inner wall of the operating ring 15 . The arc-shaped positioning block 19 is slidably connected to the arc-shaped positioning groove 18 , and the length of the arc-shaped positioning block 19 is greater than the distance between the two slides 9 .

[0028] A connecting bolt 20 is provided at the inner wall of the arc-shaped positioning block 19 . The threaded section of the connecting bolt 20 passes through the arc-shaped positioning block 19 and is threadedly connected to the operating ring 15 . The head of the connecting bolt 20 presses and fixes the arc-shaped positioning block 19 to the operating ring 15 .

[0029] 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. An internal and external double locking anti-leakage hydraulic joint, comprising an inlet joint (1), an outlet joint (2) and a connecting sleeve (3), wherein a supporting retaining ring (4) is arranged at the outer wall of the inlet joint (1), a sealing ring (5) is sleeved on the outer side of the inlet joint (1), the inlet end of the outlet joint (2) is sleeved on the outer side of the outlet end of the inlet joint (1), the outlet joint (2) presses the sealing ring (5) against the supporting retaining ring (4), the connecting sleeve (3) is sleeved on the outer side of the inlet joint (1), one end of the connecting sleeve (3) is provided with a limiting retaining ring (6), the limiting retaining ring (6) abuts against the supporting retaining ring (4), the other end of the connecting sleeve (3) is threadedly connected to the outer wall of the outlet joint (2), and the characteristics are: A locking ring (7) is arranged on the outer wall of the water outlet joint (2), a plurality of locking units (8) are arranged on the outer wall of the connecting sleeve (3), and the plurality of locking units (8) are evenly distributed along the circumference of the connecting sleeve (3), the locking unit (8) comprises an extension rod (81), and a locking block (82) arranged on the inner wall of the extension rod (81), the locking block (82) pressing against the end of the locking ring (7) facing away from the water inlet joint (1).

2. The internal and external double locking anti-leakage hydraulic joint according to claim 1 is characterized by: A sliding seat (9) is arranged on the outer wall of the connecting sleeve (3), a sliding hole (10) is axially penetrated in the sliding seat (9), the extension rod (81) is slidingly connected in the sliding hole (10), a clamping bolt (11) is threadedly connected on the outer wall of the sliding seat (9), and the threaded section of the clamping bolt (11) is pressed against the extension rod (81).

3. The internal and external double locking anti-leakage hydraulic joint according to claim 2 is characterized by: A rubber sheet (12) is fixedly connected to the outer wall of the extension rod (81), and the threaded section of the tightening bolt (11) tightens against the rubber sheet (12).

4. The internal and external double locking anti-leakage hydraulic joint according to claim 3 is characterized by: A dovetail groove (13) is provided on the outer wall of the extension rod (81), and a rubber dovetail block (14) is integrally formed on the inner wall of the rubber sheet (12), and the rubber dovetail block (14) is adhesively fixed in the dovetail groove (13).

5. The internal and external double locking anti-leakage hydraulic joint according to claim 2 is characterized by: An operating ring (15) is rotatably sleeved between the plurality of slide seats (9), and a plurality of transmission teeth (16) are arranged at the end of the operating ring (15) close to the water outlet joint (2), and the plurality of transmission teeth (16) are evenly distributed along the circumference of the operating ring (15), and a gear (17) is fixedly connected to the head of the tightening bolt (11), and the gear (17) is meshed with the transmission teeth (16).

6. The internal and external double locking anti-leakage hydraulic joint according to claim 5, characterized in that: An arc-shaped positioning groove (18) is provided on the outer wall of the slide seat (9), and an arc-shaped positioning block (19) is provided on the inner wall of the operating ring (15). The arc-shaped positioning block (19) is slidably connected to the arc-shaped positioning groove (18), and the length of the arc-shaped positioning block (19) is greater than the distance between the two slide seats (9).

7. The internal and external double locking anti-leakage hydraulic joint according to claim 6 is characterized by: A connecting bolt (20) is provided on the inner wall of the arc-shaped positioning block (19); a threaded section of the connecting bolt (20) passes through the arc-shaped positioning block (19) and is threadedly connected to the operating ring (15); and a head of the connecting bolt (20) presses and fixes the arc-shaped positioning block (19) to the operating ring (15).

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