Self-sealing type high-pressure oil pipe joint
By designing a self-sealing high-pressure oil pipe joint, and utilizing components such as sealing rings, fixing rings, limiting rods, and springs, the problem of poor sealing of high-pressure oil pipe joints under vibration is solved, achieving high sealing performance and a robust connection.
Patent Information
- Application Number
- CN202520181592.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-05
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-02-05
AI Technical Summary
Existing high-pressure oil pipe joints are prone to loosening during vibration, resulting in poor sealing performance.
It adopts a self-sealing design, including a sealing ring, a retaining ring, a limiting rod and a limiting groove, which are reinforced and fixed by threaded connection and bolt. Combined with the self-sealing assembly of spring and self-sealing head, it enhances sealing performance and connection firmness.
It effectively fills the gap between the joint and the oil pipe under high pressure, prevents oil leakage, improves the sealing effect, increases the firmness of the connection, and makes the oil flow smoothly.
Smart Images
Figure CN223579231U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to engineering machinery technical field, concretely is a kind of self-sealing high-pressure oil pipe joint. BACKGROUND
[0002] High-pressure oil pipe of engineering machinery is important component of hydraulic system, mainly used to connect hydraulic pump, hydraulic cylinder, hydraulic valve and other components, transmit high-pressure liquid (usually hydraulic oil), so as to realize the hydraulic transmission of machine.
[0003] But the existing two groups of high-pressure oil pipe are connected by oil pipe joint by thread, and are sealed by conventional rubber ring, but the joint works and generates larger vibration, and the connecting portion is prone to loosening, so that the sealing effect is poor.
[0004] Therefore, in view of the above, the existing structure and defects are improved, and a self-sealing high-pressure oil pipe joint is provided. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a self-sealing high-pressure oil pipe joint to solve the problems in the above background technology.
[0006] To achieve the above object, the utility model provides the following technical scheme: a self-sealing high-pressure oil pipe joint, comprising a left pipe and a reinforcing assembly, an inner thread layer is arranged on the inner wall of the left pipe end, and the reinforcing assembly for increasing the sealing degree of the joint is arranged outside the left pipe, and the reinforcing assembly comprises a sealing ring, a fixed ring one, a limiting rod, a limiting groove and a fixed ring two, the left end of the sealing ring is provided with the fixed ring one, the surface of the fixed ring one is mounted with the limiting rod, the outside of the limiting rod is provided with the limiting groove, and the outside of the limiting groove is provided with the fixed ring two.
[0007] Further, the sealing ring and the left pipe are connected in a sleeved manner, and the sealing ring and the fixed ring one are tightly attached, and the limiting rod is arranged in an annular shape about the center point of the sealing ring and has six roots.
[0008] Further, the limiting rod and the limiting groove are connected in a sliding manner, and the number and position of the limiting groove and the limiting rod are one-to-one corresponding.
[0009] Further, the inside of the fixed ring two is connected with a right pipe, and the end of the right pipe is connected with a connector.
[0010] Further, the inside of the connector is provided with an inner connector, and the end diameter of the inner connector is consistent with the end diameter of the left pipe.
[0011] Further, the inside of the left pipe is mounted with an inner support rod, and the side of the inner support rod is mounted with a self-sealing assembly for self-sealing inside the connector.
[0012] Further, the self-sealing assembly comprises a spring and a self-sealing head, and the end of the spring is provided with the self-sealing head.
[0013] Further, the spring and the self-sealing head are fixedly connected, and the diameter of the self-sealing head is consistent with the inner diameter of the left pipe end.
[0014] The utility model provides a kind of self-sealing high-pressure oil pipe joint, with the following beneficial effects:
[0015] 1, the utility model discloses a sealing ring connection between left pipe and right pipe, which can better fill the gap between the joint and the oil pipe under high pressure, improve the sealing effect, prevent oil leakage, and the fixed ring one and the fixed ring two are fixed by bolt for the fixed connection of left pipe and right pipe, the limit rod is clamped in the limiting groove, so that the fixed ring one and the fixed ring two are prevented from loosening and shifting after being fixed, and the connection firmness is increased.
[0016] 2, the utility model discloses that the inner connector optimizes its connection channel with left pipe inside right pipe, so that the oil quantity in the joint is more smooth during conveying, and the inner support rod is used to support the spring inside left pipe, so that the self-sealing head is slid in left pipe by the elastic force of spring, thereby achieving self-sealing effect on the end of left pipe. BRIEF DESCRIPTION OF DRAWINGS
[0017] Fig. 1 It is the overall structure schematic view of the utility model a kind of self-sealing high-pressure oil pipe joint;
[0018] Fig. 2 It is the reinforcing assembly structure schematic view of the utility model a kind of self-sealing high-pressure oil pipe joint;
[0019] Fig. 3 It is the self-sealing assembly structure schematic view of the utility model a kind of self-sealing high-pressure oil pipe joint.
[0020] In the figure: 1, left pipe;2, internal thread layer;3, reinforcing assembly;301, sealing ring;302, fixed ring one;303, limit rod;304, limiting groove;305, fixed ring two;4, right pipe;5, connector;6, inner connector;7, inner support rod;8, self-sealing assembly;801, spring;802, self-sealing head. DETAILED DESCRIPTION
[0021] The embodiments of the utility model are further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.
[0022] As Fig. 1As shown, a self-sealing high-pressure oil pipe joint includes a left pipe 1 and a reinforcing assembly 3, the inner wall of the end of the left pipe 1 is provided with an internal thread layer 2, the inner side of the fixed ring two 305 is connected with a right pipe 4, and the end of the right pipe 4 is connected with a connector 5, the inside of the connector 5 is provided with an inner connector 6, and the end diameter of the inner connector 6 is consistent with the end diameter of the left pipe 1, the inner connector 6 optimizes the connection channel of the left pipe 1 inside the right pipe 4, so that the oil delivery inside the joint is more smooth, the inside of the left pipe 1 is provided with an inner support rod 7, the inner support rod 7 is used for the spring 801 to support the installation inside the left pipe 1, and the side of the inner support rod 7 is provided with a self-sealing assembly 8 for self-sealing inside the joint, the self-sealing assembly 8 includes a spring 801 and a self-sealing head 802, and the end of the spring 801 is provided with the self-sealing head 802, the spring 801 and the self-sealing head 802 are fixedly connected, and the diameter of the self-sealing head 802 is consistent with the inner diameter of the end of the left pipe 1, the spring 801 makes the self-sealing head 802 slide in the left pipe 1 by the elastic force of the spring 801, thereby achieving the self-sealing effect of the end of the left pipe 1.
[0023] As shown in Fig. 2 and Fig. 3 As shown, the reinforcing assembly 3 for increasing the sealing degree of the joint is arranged outside the left pipe 1, and the reinforcing assembly 3 includes a sealing ring 301, a fixed ring one 302, a limiting rod 303, a limiting groove 304 and a fixed ring two 305, the left end of the sealing ring 301 is provided with the fixed ring one 302, the wrapping type sealing ring 301 is connected between the left pipe 1 and the right pipe 4, so that it can better fill the gap between the joint and the oil pipe in a high-pressure environment, improve the sealing effect, prevent oil leakage, and the surface of the fixed ring one 302 is provided with the limiting rod 303, the fixed ring one 302 and the fixed ring two 305 are fixedly connected by bolts for fixed connection of the left pipe 1 and the right pipe 4, the outside of the limiting rod 303 is provided with the limiting groove 304, and the outside of the limiting groove 304 is provided with the fixed ring two 305, the sealing ring 301 and the left pipe 1 are connected in a sleeved manner, and the sealing ring 301 and the fixed ring one 302 are tightly fitted, the limiting rod 303 is arranged in an annular manner about the center point of the sealing ring 301, and six limiting rods 303 are arranged, the limiting rod 303 is clamped in the limiting groove 304 to prevent the fixed ring one 302 and the fixed ring two 305 from loosening and deviating after being fixed, increase the connection firmness, the limiting rod 303 and the limiting groove 304 are connected in a sliding manner, and the limiting groove 304 and the limiting rod 303 are one-to-one corresponding in number and position.
[0024] In summary, the self-sealing high-pressure oil pipe joint first according to Figs. 1-3As shown in the structure, when installed, the wrapping sealing ring 301 is sleeved on the outside of the left pipe 1 end, and the right pipe 4 is installed outside the sealing ring 301, so that the sealing ring 301 is located inside the left pipe 1 and the right pipe 4, at this time, the sealing ring 301 enables the joint to better fill the gap between the joint and the oil pipe in a high-pressure environment, improves the sealing effect, prevents oil leakage, and when connected, the fixed ring one 302 and the fixed ring two 305 are fixed by bolts for fixed connection of the left pipe 1 and the right pipe 4, and the limiting rod 303 is clamped in the limiting groove 304, so that the fixed ring one 302 and the fixed ring two 305 are prevented from loosening and shifting after being fixed, the connection firmness is increased, the inside of the left pipe 1 and the right pipe 4 after connection is connected through the inner connector 6 and the left pipe 1 connection channel, so that the oil quantity in the joint is more smooth during transportation, and in use, the spring 801 slides the self-sealing head 802 in the left pipe 1 by the self-elastic force, thereby achieving the self-sealing effect on the left pipe 1 end.
[0025] Embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments were chosen and described in order to best explain the principles of the application and its practical application, and to enable others skilled in the art to understand the application for various embodiments with various modifications as are suited to the particular use contemplated.
Claims
1. A self-sealing high-pressure oil pipe coupling comprising a left coupling pipe (1) and a reinforcement assembly (3), characterized in that, The inner wall of the left pipe (1) end is provided with an internal thread layer (2), the left pipe (1) is provided with a reinforcing assembly (3) outside the left pipe (1) for increasing the sealing degree of the joint, and the reinforcing assembly (3) comprises a sealing ring (301), a fixed ring one (302), a limiting rod (303), a limiting groove (304) and a fixed ring two (305), the left end of the sealing ring (301) is provided with the fixed ring one (302), the surface of the fixed ring one (302) is mounted with the limiting rod (303), the outer portion of the limiting rod (303) is provided with the limiting groove (304), and the outer portion of the limiting groove (304) is provided with the fixed ring two (305).
2. A self-sealing high pressure oil pipe coupling according to claim 1, characterized in that The sealing ring (301) and the left pipe (1) are connected in a sleeved manner, and the sealing ring (301) and the fixed ring one (302) are tightly fitted, the limiting rod (303) is arranged in an annular manner about the center point of the sealing ring (301) and has six limiting rods.
3. A self-sealing high pressure oilfield swivel as defined in claim 1, wherein, The limiting rod (303) and the limiting groove (304) are connected in a sliding manner, and the limiting groove (304) and the limiting rod (303) are one-to-one corresponding in number and position.
4. The self-sealing high pressure oil swivel as defined in claim 1, characterized in that The inner side of the fixed ring two (305) is connected with a right pipe (4), and the end of the right pipe (4) is connected with a connector (5).
5. A self-sealing high pressure oil swivel according to claim 4, characterized in that The inside of the connector (5) is provided with an inner connector (6), and the end diameter of the inner connector (6) is consistent with the end diameter of the left pipe (1).
6. The self-sealing high pressure fuel swivel of claim 1, wherein, The inside of the left pipe (1) is mounted with an inner support rod (7), and the side of the inner support rod (7) is mounted with a self-sealing assembly (8) for self-sealing of the joint.
7. A self-sealing high pressure oilfield swivel as claimed in claim 6, wherein, The self-sealing assembly (8) comprises a spring (801) and a self-sealing head (802), and the end of the spring (801) is mounted with the self-sealing head (802).
8. A self-sealing high pressure oilfield swivel as claimed in claim 7, wherein, The spring (801) and the self-sealing head (802) are fixedly connected, and the diameter of the self-sealing head (802) is consistent with the inner diameter of the left pipe (1) end.