High-pressure oil pipe joint forming structural locking
By introducing a guide groove and limiting hole structure for locking in the high-pressure oil pipe joint, combined with a threaded connection, the problems of complex structure and high cost of high-pressure oil pipe joints are solved, achieving accurate docking and sealing, and reducing production costs.
Patent Information
- Application Number
- CN202520142992.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Conventional high-pressure oil pipe joints have complex structures, high production costs, and are easily damaged during the connection process, affecting convenience and usage costs.
A structural locking high-pressure oil pipe joint including a first inner joint and a second inner joint is designed. By setting a guide groove and a limiting hole on the surface of the second inner joint, structural locking is achieved by using limiting balls and miniature spring posts, and the accuracy and tightness of the connection are ensured by threaded connection.
It improves the accuracy and smoothness of docking, reduces structural misalignment and leakage, lowers production costs, and enhances the firmness and sealing of the docked structure, preventing structural loosening.
Smart Images
Figure CN223563674U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to engineering machinery technical field, concretely is a kind of high-pressure oil pipe joint of formation structure locking. BACKGROUND
[0002] Hydraulic pipe joint is the component between connecting high-pressure oil pipe and high-pressure oil pipe in engineering machinery hydraulic system. Hydraulic pipe joint can be divided into hydraulic hose, high-pressure ball valve, quick connector, sleeve pipe joint, welded pipe joint, high-pressure hose, transition pipe joint, tee pipe joint, non-standard pipe joint, flared pipe joint, right-angle pipe joint, rotary pipe joint, stainless steel pipe joint, copper joint.
[0003] The structure of conventional high-pressure oil pipe joint is complex, and the production cost is higher. In the docking process, the joint combination position between structures needs to be paid attention to, which is easy to cause structural damage, affects the docking convenience, and makes the use cost higher.
[0004] Therefore, in view of the above, the existing structure and defects are improved, and a high-pressure oil pipe joint of formation structure locking is proposed. INVENTION CONTENTS
[0005] The utility model aims at providing a kind of high-pressure oil pipe joint of formation structure locking to solve the problems raised in the above background.
[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of high-pressure oil pipe joint of formation structure locking, including first inner joint and second inner joint, the outside of the first inner joint is sleeved with first outer joint, the second inner joint is inserted in the inside of one end of first inner joint, and the outside of second inner joint is sleeved with second outer joint, the second inner joint includes second inner joint main body, sealing ring, guide slot, limit hole and link ring, the sealing ring is installed on the surface of one end of second inner joint main body close to first inner joint, and the surface of second inner joint main body is distributed with guide slot, and the limit hole is opened in the end of guide slot away from first inner joint, and the surface of one end of second inner joint main body away from first inner joint is provided with link ring.
[0007] Further, the first inner joint includes first inner joint structure, connecting groove, sealing groove, built-in slot, micro spring pile and limit ball, the connecting groove is opened in the surface of one end of first inner joint structure away from second inner joint, and the sealing groove is opened in the inside middle section of first inner joint structure, and the built-in slot is opened in the opening inner wall of one end of first inner joint structure close to second inner joint, and the micro spring pile is installed in the inside of built-in slot, and the limit ball is arranged in the one end of micro spring pile close to the opening of built-in slot.
[0008] Further, the sealing ring is embeddedly installed on the surface of one end of the second inner body, the inner surface structure of the sealing groove is matched with the outer surface structure of the sealing ring, the built-in groove, the micro spring pile and the limiting ball are annularly arranged with the first inner body as the center and are each provided with six groups, and the limiting ball is embeddedly arranged in the built-in groove.
[0009] Further, the guiding groove and the limiting hole are annularly arranged with the second inner body as the center and are each provided with six groups, and the limiting hole is arranged at one end inside the guiding groove in a sunken structure and is matched with the surface structure of the limiting ball.
[0010] Further, the first outer connector comprises a first outer body, a connecting ring, a nut structure and an inner connecting thread, the inner wall of one end of the first outer body is provided with the connecting ring, the surface of one end of the first outer body close to the second outer connector is provided with the nut structure, and the inner wall surface of the first outer body is provided with the inner connecting thread.
[0011] Further, the first outer body, the connecting ring and the nut structure are arranged in an integrated structure, and the surface structure of the connecting ring is matched with the inner surface structure of the connecting groove.
[0012] Further, the second outer connector comprises a second outer body, a connecting groove, an outer connecting thread and a contraction groove, the inner wall of one end of the second outer body away from the first outer connector is provided with the connecting groove, and the outer surface of one end of the second outer body close to the first outer connector is respectively provided with the outer connecting thread and the contraction groove.
[0013] Further, the surface structure of the outer connecting thread is matched with the surface structure of the inner connecting thread, and the contraction groove is annularly arranged with the second outer body as the center and has five groups.
[0014] The utility model provides a high pressure oil pipe joint of formation structure locking has the following beneficial effects:
[0015] 1. The utility model, through setting up guide groove, limiting hole on the surface of second inner connection main part, make first inner connection structure utilize the limiting ball in one end inner wall built-in groove can roll along the guide groove, so that first inner joint can and second inner joint carry out sliding insertion butt joint, with the limiting ball rolls to the inside of limiting hole, the micro spring pile in built-in groove inside will stop the limiting ball in the inside of limiting hole at this time, form the effect of structure locking, utilize the use of above -mentioned structure, can guarantee the butt joint accuracy and smoothness between first inner joint and second inner joint to the maximum extent, avoid structure misplacement when butt joint as far as possible, with the insertion butt joint of first inner connection structure and second inner connection main part, will make the sealing ring closely embedded in the inside of sealing groove, so that the structure of first inner joint second inner joint after butt joint maximum degree guarantee, reduce the condition of leakage.
[0016] 2. The utility model discloses a first inner connection structure, and the inner wall of first inner connection structure is provided with inner link thread, cooperates with the outer link thread and contraction groove that second outer connection main body outer surface sets up, makes both when screwing butt joint, will produce structure extrusion to second outer connection main body, cooperates the structure effect of contraction groove, so that the first inner connection structure between second inner connection main body and second outer connection main body forms the structure of sandwiching, utilize the use of above -mentioned structure, on one hand can provide the external structure protection for first inner joint and second inner joint, reduces structure damage, on the other hand can guarantee the firmness and compactness of structure butt joint between both as far as possible, reduces the condition of structure slack to occur, to this end guarantees the structure sealing property of inside, and the use of above -mentioned structure also makes the structure of whole joint can simplify, reduces production cost while not affecting use convenience. ACCURACY
[0017] Figure 1 It is the body shaft side view structural schematic diagram of the utility model of a kind of structure-locked high-pressure oil pipe joint;
[0018] Figure 2 It is the first inner joint and first outer joint sectional view structural schematic diagram of the utility model of a kind of structure-locked high-pressure oil pipe joint;
[0019] Figure 3 It is the second inner joint and second outer joint sectional view structural schematic diagram of the utility model of a kind of structure-locked high-pressure oil pipe joint. Figure 2 The A of the utility model of a kind of structure-locked high-pressure oil pipe joint is enlarged structural schematic diagram;
[0020] Figure 4 The A of the utility model of a kind of structure-locked high-pressure oil pipe joint is enlarged structural schematic diagram;
[0021] In the figure: 1, the first inner connector; 101, the first inner connector structure; 102, the connecting groove; 103, the sealing groove; 104, the built-in groove; 105, the micro spring pile; 106, the limiting ball; 2, the first outer connector; 201, the first outer connector body; 202, the connecting ring; 203, the nut structure; 204, the inner connection thread; 3, the second inner connector; 301, the second inner connector body; 302, the sealing ring; 303, the guide groove; 304, the limiting hole; 305, the connection ring; 4, the second outer connector; 401, the second outer connector body; 402, the connection groove; 403, the outer connection thread; 404, the contraction groove. DETAILED DESCRIPTION
[0022] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.
[0023] As Figures 1 to 4As shown, a high-pressure oil pipe joint is formed by a first inner joint 1 and a second inner joint 3, the first outer joint 2 is sleeved on the outside of the first inner joint 1, the second inner joint 3 is inserted into the inside of one end of the first inner joint 1, and the second outer joint 4 is sleeved on the outside of the second inner joint 3, the second inner joint 3 comprises a second inner joint body 301, a sealing ring 302, a guide groove 303, a limiting hole 304 and a connecting ring 305, the sealing ring 302 is mounted on the surface of one end of the second inner joint body 301 close to the first inner joint 1, the surface of the second inner joint body 301 is distributed with the guide groove 303, the limiting hole 304 is opened at one end of the guide groove 303 away from the first inner joint 1, and the connecting ring 305 is arranged on the surface of one end of the second inner joint body 301 away from the first inner joint 1, the first inner joint 1 comprises a first inner joint structure 101, a connecting groove 102, a sealing groove 103, an embedded groove 104, a micro spring pile 105 and a limiting ball 106, the connecting groove 102 is opened on the surface of one end of the first inner joint structure 101 away from the second inner joint 3, the sealing groove 103 is opened in the middle of the inside of the first inner joint structure 101, the embedded groove 104 is opened on the opening inner wall of one end of the first inner joint structure 101 close to the second inner joint 3, the micro spring pile 105 is mounted in the inside of the embedded groove 104, and the limiting ball 106 is arranged at one end of the micro spring pile 105 close to the opening of the embedded groove 104, the sealing ring 302 is embeddedly mounted on the surface of one end of the second inner joint body 301, the inner surface structure of the sealing groove 103 and the outer surface structure of the sealing ring 302 are matched with each other, the embedded groove 104, the micro spring pile 105 and the limiting ball 106 are annularly arrayed with the first inner joint structure 101 as the center and are all arranged in six groups, and the limiting ball 106 is embeddedly arranged in the inside of the embedded groove 104, the guide groove 303 and the limiting hole 304 are annularly arrayed with the second inner joint body 301 as the center and are all arranged in six groups, and the limiting hole 304 is arranged at one end of the inside of the guide groove 303 in a sunken structure and is matched with the surface structure of the limiting ball 106, the limiting ball 106 in the embedded groove 104 of one end of the first inner joint structure 101 can roll along the guide groove 303, so that the first inner joint 1 can be slidably inserted and connected with the second inner joint 3, when the limiting ball 106 rolls to the inside of the limiting hole 304, the micro spring pile 105 in the embedded groove 104 will abut the limiting ball 106 against the inside of the limiting hole 304, forming a structure locking effect.
[0024] As Figures 1 to 4As shown, the first outer joint 2 comprises a first outer joint body 201, a connecting ring 202, a nut structure 203 and an inner connection thread 204, the inner wall of one end of the first outer joint body 201 is provided with the connecting ring 202, and the surface of the end of the first outer joint body 201 close to the second outer joint 4 is provided with the nut structure 203, and the inner wall surface of the first outer joint body 201 is provided with the inner connection thread 204, the first outer joint body 201, the connecting ring 202 and the nut structure 203 are integrally arranged, and the surface structure of the connecting ring 202 matches the inner surface structure of the connecting groove 102, the second outer joint 4 comprises a second outer joint body 401, a connection groove 402, an outer connection thread 403 and a contraction groove 404, the inner wall of the end of the second outer joint body 401 away from the first outer joint 2 is provided with the connection groove 402, and the outer surface of the end of the second outer joint body 401 close to the first outer joint 2 is provided with the outer connection thread 403 and the contraction groove 404 respectively, the surface structure of the outer connection thread 403 matches the surface structure of the inner connection thread 204, and the contraction groove 404 is annularly arranged with five groups with the second outer joint body 401 as the center. Since the surface of the second outer joint body 401 is conical in structure, the inner structure of the first outer joint body 201 matches the structure, and the inner wall of the first inner joint structure 101 is provided with the inner connection thread 204, which cooperates with the outer connection thread 403 and the contraction groove 404 provided on the outer surface of the second outer joint body 401, so that when the two are screwed and connected, the second outer joint body 401 is structurally extruded, and the structure of the contraction groove 404 cooperates to form a clamping structure between the first inner joint structure 101 and the second outer joint body 401.
[0025] In summary, as Figures 1 to 4 shown, the high-pressure oil pipe joint forming structural locking is used, first, the first inner joint 1 is connected with the second inner joint 3, the limiting ball 106 in the built-in groove 104 in the inner wall of one end of the first inner joint structure 101 is embedded in the guide groove 303 on the surface of the second inner joint body 301, and the sliding insertion is carried out.
[0026] In this process, the first outer joint 2 and the second outer joint 4 are connected synchronously, the first outer joint body 201 with the inner wall provided with the inner connection thread 204 is screwed to the surface of the second outer joint body 401 provided with the outer connection thread 403, at this time, the first inner joint 1 and the first outer joint 2 connected by the connecting groove 102 and the connecting ring 202 are combined and connected with the second inner joint 3 and the second outer joint 4 connected by the connecting ring 305 and the connecting groove 402.
[0027] When the limiting ball 106 rolls to the inside of the limiting hole 304, at this time, under the pushing of the micro spring pile 105 structure inside the built-in groove 104, the limiting ball 106 is abutted against the inside of the limiting hole 304, and at the same time, the sealing ring 302 at one end of the second inner body 301 is embedded in the sealing groove 103 inside the first inner structure 101, and after the first outer joint 2 and the second outer joint 4 are screwed tightly, the first inner joint 1 and the second inner joint 3 are also tightly butt-jointed at the same time, so that the connection combination of the high-pressure oil pipe is completed.
[0028] 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 precise form disclosed. Many modifications and variations are possible in light of this disclosure. Embodiments are chosen and described in order to provide the best illustration of the principles of the application and its practical application, and to thereby 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 structural locking high pressure oil pipe joint comprising a first inner joint (1) and a second inner joint (3), characterized in that: The first inner joint (1) is sleeved with a first outer joint (2), the second inner joint (3) is inserted into one end of the first inner joint (1), and the outer side of the second inner joint (3) is sleeved with a second outer joint (4), the second inner joint (3) comprises a second inner joint body (301), a sealing ring (302), a guide groove (303), a limiting hole (304) and a connecting ring (305), the sealing ring (302) is installed on the end surface of the second inner joint body (301) close to the first inner joint (1), the surface of the second inner joint body (301) is distributed with the guide groove (303), the limiting hole (304) is arranged at one end of the guide groove (303) away from the first inner joint (1), and the connecting ring (305) is arranged on the end surface of the second inner joint body (301) away from the first inner joint (1).
2. A pressure hydraulic tubing fitting forming a structural lock according to claim 1, wherein, The first inner joint (1) comprises a first inner joint structure (101), a connecting groove (102), a sealing groove (103), an embedded groove (104), a micro spring pile (105) and a limiting ball (106), the connecting groove (102) is arranged on the end surface of the first inner joint structure (101) away from the second inner joint (3), the sealing groove (103) is arranged in the middle of the inner part of the first inner joint structure (101), the embedded groove (104) is arranged on the opening inner wall of the end of the first inner joint structure (101) close to the second inner joint (3), the micro spring pile (105) is arranged in the embedded groove (104), and the limiting ball (106) is arranged on one end of the micro spring pile (105) close to the opening of the embedded groove (104).
3. A high pressure oil pipe joint of the type defined in claim 2, characterised in that The sealing ring (302) is embeddedly installed on the end surface of the second inner joint body (301), the inner surface structure of the sealing groove (103) is matched with the outer surface structure of the sealing ring (302), the embedded groove (104), the micro spring pile (105) and the limiting ball (106) are annularly arranged with the first inner joint structure (101) as the center and are all provided with six groups, and the limiting ball (106) is embeddedly arranged in the embedded groove (104).
4. A pressure pipe joint of the type described in claim 2, wherein: The guide groove (303) and the limiting hole (304) are annularly arranged with the second inner joint body (301) as the center and are all provided with six groups, and the limiting hole (304) is arranged at one end of the guide groove (303) in a sunken manner and is matched with the surface structure of the limiting ball (106).
5. A pressure pipe joint of the type described in claim 2 wherein: The first outer joint (2) comprises a first outer joint body (201), a connecting ring (202), a nut structure (203) and an inner connecting thread (204), the connecting ring (202) is arranged on the inner wall of one end of the first outer joint body (201), the nut structure (203) is arranged on the surface of one end of the first outer joint body (201) close to the second outer joint (4), and the inner connecting thread (204) is arranged on the inner wall surface of the first outer joint body (201).
6. A pressure pipe joint of the type described in claim 5, wherein: The first outer connecting body (201), the connecting ring (202) and the nut structure (203) are arranged in an integrated structure, and the surface structure of the connecting ring (202) and the inner surface structure of the connecting groove (102) are matched with each other.
7. A pressure pipe coupling of the type described in claim 5 wherein: The second outer connector (4) comprises a second outer connecting body (401), a connecting groove (402), an outer connecting thread (403) and a contraction groove (404), the connecting groove (402) is arranged on the surface of the second outer connecting body (401) away from the inner wall of the first outer connector (2), and the outer connecting thread (403) and the contraction groove (404) are arranged on the surface of the second outer connecting body (401) close to the first outer connector (2).
8. A pressure tube joint of the type described in claim 7 wherein: The surface structure of the outer connecting thread (403) and the surface structure of the inner connecting thread (204) are matched with each other, and the contraction groove (404) is arranged in five groups in a circular array with the second outer connecting body (401) as the center.