Composite protection high-pressure oil pipe

Abstract

The utility model relates to the technical field of high-pressure oil pipes, and discloses a composite protection high-pressure oil pipe which comprises a pipe body, one end of the pipe body is fixedly connected with a sealing insertion ring, the end, located on the sealing insertion ring, of the pipe body is provided with a connecting base, and the end, away from the pipe body, of the connecting base is fixedly connected with a connector. A connecting inserting groove is formed in the end, away from the connector, of the connecting base, a sealing inserting groove is formed in the end, located in the connecting inserting groove, of the connecting base, and a fixing sleeve is fixedly arranged at the end, close to the connecting base, of the pipe body in a sleeving mode. Therefore, the connection base and the fixed flange plate are fixed more firmly, the pipe body and the connector are fixed more firmly, operation is convenient and fast, the sealing performance and the connection stability can be effectively improved, the connection stability of the pipe body and the connector can be improved, leakage is prevented, and the service life of the pipe body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure oil pipes, and more specifically to a composite protective high-pressure oil pipe. Background Art

[0002] High-pressure oil pipes are components of high-pressure oil circuits. They are required to withstand a certain oil pressure and have a certain fatigue strength to ensure the sealing requirements of the pipelines. When producing high-pressure oil pipes, oil pipe joints need to be fixed at their ends to facilitate the connection between the high-pressure oil pipes and external equipment.

[0003] Since the high-pressure oil pipe itself has a certain elasticity, after long-term use or when subjected to external vibration, the oil pipe is prone to loosening from the joint, resulting in a certain gap, leading to oil leakage, and it is easy to fall off, with poor sealing and stability, which reduces the service life of the high-pressure oil pipe. For this reason, we propose a composite protective high-pressure oil pipe to solve the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a composite protective high-pressure oil pipe to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a composite protective high-pressure oil pipe, comprising a pipe body, one end of the pipe body is fixedly connected to a sealing insert ring, the pipe body is provided with a connecting seat at one end of the sealing insert ring, the connecting seat is fixedly connected to a joint at one end away from the pipe body, a connecting slot is provided at one end of the connecting seat away from the joint, a sealing slot is provided at one end of the connecting seat located at the connecting slot, a fixing sleeve is provided at one end of the pipe body close to the connecting seat, a moving groove is provided inside the fixing sleeve, a locking and limiting mechanism is provided at one end of the fixing sleeve away from the connecting seat, a fixing flange is provided at one end of the pipe body close to the connecting seat, a fixing bolt is provided at one end of the fixing flange away from the connecting seat, a gasket is provided at one end of the fixing bolt, and the connecting seat and the fixing flange are connected via the gasket.

[0006] Preferably, the locking and limiting mechanism includes a handle arranged at one end of the fixed sleeve, the end of the handle close to the fixed sleeve is fixedly connected to a pull rod, the end of the pull rod extending through the fixed sleeve to the inside of the movable groove is fixedly connected to a movable block, the end of the handle located inside the movable groove is sleeved with a spring, the end of the movable block away from the spring is fixedly connected to a connecting rod, the end of the connecting rod extending through the fixed sleeve to the outside is fixedly connected to a mounting sleeve, and the inner wall of the mounting sleeve is fixedly connected to a ratchet gear.

[0007] Preferably, the sealing insert ring is matched with the sealing slot.

[0008] Preferably, an end of the connection seat away from the joint is fixedly connected to a connection inner tube, and the connection inner tube is inserted into the inner wall of one end of the tube body located at the fixed flange.

[0009] Preferably, a plurality of sealing grooves are provided on the inner wall of one end of the tube body close to the fixed flange, and a plurality of sealing sleeves are provided on the outer wall fixed sleeve of the connecting inner tube away from the connecting seat.

[0010] Preferably, the sealing sleeve is matched with the sealing groove.

[0011] Technical effects and advantages of the utility model:

[0012] 1. The utility model is provided with a locking limit mechanism. After tightening the fixing bolt to complete the fixation, by loosening the pull handle, the rebound return force of the spring decreases and the moving block is pushed to move along the moving groove, thereby driving the mounting sleeve fixed at one end of the connecting rod to move toward the fixing bolt, so that the ratchet gear fixing sleeve is arranged on the bolt head of the fixing bolt. Due to the bevel teeth arranged along the clockwise rotation of the ratchet gear along the fixing bolt, the fixing bolt can only be tightened by rotating clockwise, and the blocking effect of the ratchet gear makes the fixing bolt unable to rotate counterclockwise, effectively preventing the fixing bolt from vibrating and causing loosening, thereby making the fixing of the connecting seat and the fixing flange more firmly, and then making the fixing of the pipe body and the joint more firmly, the operation is convenient, can effectively improve the sealing and connection stability, is beneficial to improving the stability of the connection between the pipe body and the joint, prevents leakage, and increases the service life of the pipe body.

[0013] 2. The utility model is provided with a sealing insert ring, a sealing slot, a sealing sleeve, and a sealing groove. When the pipe body is installed, one end of the pipe body located at the sealing insert ring is inserted along the connecting slot end of the connecting seat, so that the sealing insert ring is inserted into the sealing slot, and the sealing sleeve is inserted into the sealing groove. The tight connection between the sealing sleeve and the sealing groove is conducive to improving the sealing of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0016] Figure 3 It is a partially enlarged cross-sectional structural schematic diagram of the utility model.

[0017] Figure 4 It is a schematic diagram of the structure of the locking and limiting mechanism of the utility model.

[0018] The accompanying drawings are marked as follows: 1. tube body; 2. joint; 3. connecting seat; 4. fixed flange; 5. fixed sleeve; 6. locking limit mechanism; 61. pull handle; 62. pull rod; 63. spring; 64. moving block; 65. connecting rod; 66. mounting sleeve; 67. ratchet gear; 7. sealing insert ring; 8. sealing slot; 9. sealing sleeve; 10. sealing groove; 11. connecting slot; 12. moving slot; 13. fixing bolt; 14. gasket; 15. connecting inner tube. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The composite protective high-pressure oil pipe involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0020] The utility model provides a composite protective high-pressure oil pipe, please refer to Figure 1-4 As shown, it includes a tube body 1, one end of the tube body 1 is fixedly connected with a sealing insert ring 7, the end of the tube body 1 located at the sealing insert ring 7 is provided with a connecting seat 3, the end of the connecting seat 3 away from the tube body 1 is fixedly connected with a joint 2, the end of the connecting seat 3 away from the joint 2 is provided with a connecting slot 11, and the end of the connecting seat 3 located at the connecting slot 11 is provided with a sealing slot 8, the end of the tube body 1 close to the connecting seat 3 is fixedly sleeved with a fixing sleeve 5, a moving groove 12 is provided inside the fixing sleeve 5, and a locking and limiting mechanism 6 is provided at the end of the fixing sleeve 5 away from the connecting seat 3, the end of the tube body 1 close to the connecting seat 3 is fixedly sleeved with a fixing flange 4, the end of the fixing flange 4 away from the connecting seat 3 is provided with a fixing bolt 13, one end of the fixing bolt 13 is sleeved with a gasket 14, the connecting seat 3 is connected to the fixing flange 4 through the gasket 14, the end of the connecting seat 3 away from the joint 2 is fixedly connected with a connecting inner tube 15, and the connecting inner tube 15 is inserted into the inner wall of the end of the tube body 1 located at the fixing flange 4.

[0021] In the embodiment of the present application, when in use, when the tube body 1 is installed, the end of the tube body 1 located at the sealing insert ring 7 is inserted along the connecting slot 11 end of the connecting seat 3, so that the sealing insert ring 7 is inserted into the sealing slot 8, and the sealing sleeve 9 is inserted into the sealing groove 10. The tight connection between the sealing sleeve 9 and the sealing groove 10 facilitates the improvement of the sealing of the connection. Then, the pull handle 61 is pulled outward, and then the gasket 14 is rotated to fix the connecting seat 3 and the fixed flange 4. After tightening the fixing bolts 13 to complete the fixation, the pull handle 61 is immediately released, and the rebound reset force of the spring 63 decreases to push the moving block 64 to move along the moving groove 12 , thereby driving the mounting sleeve 66 fixed at one end of the connecting rod 65 to move toward the fixing bolt 13, so that the ratchet gear 67 is fixedly sleeved on the bolt head of the fixing bolt 13. Since the ratchet gear 67 rotates clockwise along the helical teeth arranged on the fixing bolt 13, the fixing bolt 13 can only be tightened by rotating clockwise. The blocking effect of the ratchet gear 67 prevents the fixing bolt 13 from rotating counterclockwise, effectively preventing the fixing bolt 13 from loosening due to vibration, thereby making the connection seat 3 and the fixing flange 4 more firmly fixed, and then making the pipe body 1 and the joint 2 more firmly fixed, the operation is convenient, and can effectively improve the sealing and connection stability.

[0022] Furthermore, the locking and limiting mechanism 6 includes a pull handle 61 arranged at one end of the fixed sleeve 5, and the end of the pull handle 61 close to the fixed sleeve 5 is fixedly connected to a pull rod 62, and the end of the pull rod 62 extending through the fixed sleeve 5 to the inside of the movable groove 12 is fixedly connected to a moving block 64, and the pull handle 61 is located at the end of the movable groove 12. A spring 63 is sleeved on the end, and the end of the movable block 64 away from the spring 63 is fixedly connected to a connecting rod 65, and the connecting rod 65 extends through the fixed sleeve 5 to the outside. One end is fixedly connected to a mounting sleeve 66, and the inner wall of the mounting sleeve 66 is fixedly connected to a ratchet gear 67, and the sealing insert ring 7 is adapted to the sealing slot 8. When in use, after tightening the fixing bolt 13 to complete the fixation, the pull handle 61 is immediately released. When the rebound restoring force of the spring 63 decreases, the moving block 64 is pushed to move along the moving groove 12, thereby driving the mounting sleeve 66 fixed at one end of the connecting rod 65 to move toward the fixing bolt 13, so that the ratchet gear 67 is fixedly sleeved on the bolt head of the fixing bolt 13. Since the ratchet gear 67 is arranged along the clockwise rotation of the bevel teeth of the fixing bolt 13, the fixing bolt 13 can only be tightened by rotating clockwise. The blocking effect of the ratchet gear 67 prevents the fixing bolt 13 from rotating counterclockwise, effectively preventing the fixing bolt 13 from loosening due to vibration, thereby making the connection seat 3 and the fixing flange 4 more firmly fixed, and then making the pipe body 1 and the joint 2 more firmly fixed.

[0023] Furthermore, a plurality of sealing grooves 10 are provided on the inner wall of one end of the tube body 1 close to the fixed flange 4, and a plurality of sealing sleeves 9 are provided on the outer wall fixed sleeve of the connecting inner tube 15 away from the connecting seat 3. The sealing sleeves 9 are adapted to the sealing grooves 10. When in use, the sealing sleeves 9 are inserted into the sealing grooves 10. The tight connection between the sealing sleeves 9 and the sealing grooves 10 facilitates improving the sealing of the connection.

[0024] The working principle of the utility model is as follows: when installing the tube body 1, insert one end of the tube body 1 located at the sealing insert ring 7 along the connecting slot 11 end of the connecting seat 3, so that the sealing insert ring 7 is inserted into the sealing slot 8, and the sealing sleeve 9 is inserted into the sealing groove 10. The sealing sleeve 9 is tightly connected with the sealing groove 10 to improve the sealing of the connection. Then, pull the handle 61 outward, and then rotate the gasket 14 to fix the connecting seat 3 and the fixed flange 4. After tightening the fixing bolts 13 to complete the fixation, loosen the handle 61 immediately, and push the moving block 64 to move along the moving groove 12 when the rebound reset force of the spring 63 decreases. This drives the mounting sleeve 66 fixed on one end of the connecting rod 65 to move toward the fixing bolt 13, so that the ratchet gear 67 is fixedly sleeved on the bolt head of the fixing bolt 13. Since the ratchet gear 67 is arranged along the bevel teeth that rotate clockwise along the fixing bolt 13, the fixing bolt 13 can only be tightened by rotating clockwise. The blocking effect of the ratchet gear 67 prevents the fixing bolt 13 from rotating counterclockwise, effectively preventing the fixing bolt 13 from loosening due to vibration, thereby making the connection seat 3 and the fixing flange 4 more firmly fixed, and further making the pipe body 1 and the joint 2 more firmly fixed. The operation is convenient and can effectively improve the sealing and connection stability.

[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0026] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A composite protective high-pressure oil pipe, comprising a pipe body (1), characterized in that: One end of the tube body (1) is fixedly connected to a sealing insert ring (7); an end of the tube body (1) located at the sealing insert ring (7) is provided with a connection seat (3); an end of the connection seat (3) away from the tube body (1) is fixedly connected to a joint (2); an end of the connection seat (3) away from the joint (2) is provided with a connection slot (11); an end of the connection seat (3) located at the connection slot (11) is provided with a sealing slot (8); an end of the tube body (1) close to the connection seat (3) is fixedly provided with a fixing sleeve (5) A movable groove (12) is provided inside the fixing sleeve (5); a locking limit mechanism (6) is provided at one end of the fixing sleeve (5) away from the connecting seat (3); a fixing flange (4) is provided at one end of the tube body (1) close to the connecting seat (3); a fixing bolt (13) is provided at one end of the fixing flange (4) away from the connecting seat (3); a gasket (14) is sleeved on one end of the fixing bolt (13); and the connecting seat (3) and the fixing flange (4) are connected via the gasket (14).

2. The composite protective high-pressure oil pipe according to claim 1, characterized in that: The locking and limiting mechanism (6) comprises a handle (61) arranged at one end of the fixed sleeve (5); the end of the handle (61) close to the fixed sleeve (5) is fixedly connected to a pull rod (62); the end of the pull rod (62) extending through the fixed sleeve (5) to the inside of the movable groove (12) is fixedly connected to a movable block (64); the end of the handle (61) located inside the movable groove (12) is sleeved with a spring (63); the end of the movable block (64) away from the spring (63) is fixedly connected to a connecting rod (65); the end of the connecting rod (65) extending through the fixed sleeve (5) to the outside is fixedly connected to a mounting sleeve (66); the inner wall of the mounting sleeve (66) is fixedly connected to a ratchet gear (67).

3. The composite protective high-pressure oil pipe according to claim 1, characterized in that: The sealing insert ring (7) is matched with the sealing insert slot (8).

4. The composite protective high-pressure oil pipe according to claim 1, characterized in that: An end of the connection seat (3) away from the joint (2) is fixedly connected to a connection inner tube (15), and the connection inner tube (15) is inserted into the inner wall of one end of the pipe body (1) located at the fixed flange (4).

5. The composite protective high-pressure oil pipe according to claim 4, characterized in that: The inner wall of one end of the tube body (1) close to the fixed flange (4) is provided with a plurality of sealing grooves (10), and the outer wall fixed sleeve of the connecting inner tube (15) away from the connecting seat (3) is provided with a plurality of sealing sleeves (9).

6. The composite protective high-pressure oil pipe according to claim 5, characterized in that: The sealing sleeve (9) is matched with the sealing groove (10).

Images