Oil pipe sleeve for hydraulic system

Abstract

The utility model relates to the technical field of oil pipe sleeves, in particular to an oil pipe sleeve for a hydraulic system. According to the technical scheme, the oil pipe sleeve comprises a connector core rod and an oil pipe sleeve body, one end of the connector core rod is fixedly connected with a connecting nut, the connector core rod penetrates through the oil pipe sleeve body, the side, close to the connecting nut, of the outer surface of the connector core rod is fixedly sleeved with a fixing ring, and a plurality of limiting clamping grooves are formed in the outer surface of the fixing ring in an annular array at equal intervals. A fixing pipe is fixedly connected to the inner side of the fixing ring, the connector core rod penetrates through the fixing pipe, outer connecting threads are arranged on the outer surface of the fixing pipe, and inner connecting threads are arranged on the side, close to the fixing ring, of the inner wall of the oil pipe sleeve body. A plurality of limiting sheets are fixedly connected to the side, close to the inner connecting threads, of the outer surface of the oil pipe sleeve body in an annular array at equal intervals. The oil pipe sleeve on the hydraulic oil pipe can be prevented from loosening or slipping, the sealing performance is improved, and the leakage phenomenon is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pipe sleeves, in particular to an oil pipe sleeve for a hydraulic system. Background Art

[0002] The hydraulic system is a mechanism that compresses liquid and transmits pressure through pipes. The system has the advantages of high efficiency, precision and stability. Connecting pipes are a vital component of the hydraulic system. They are used to connect various parts and keep the system running stably. The oil pipe sleeve is a tool used to connect and fix the oil pipes and hoses in the hydraulic system. It is usually made of metal or other hard materials and has a specific size and shape to match the interface of the oil pipe or hose. The main function of the oil pipe sleeve is to ensure that the oil pipe or hose will not leak under high-pressure environment, thereby ensuring the normal operation of the hydraulic system.

[0003] At present, during long-term use, the oil pipe sleeve in the hydraulic system may become loose or slip due to various factors such as vibration, which may lead to reduced sealing and even leakage. Therefore, we propose an oil pipe sleeve for the hydraulic system. Utility Model Content

[0004] The purpose of the utility model is to provide an oil pipe sleeve for a hydraulic system, which has the advantages of preventing the oil pipe sleeve on the hydraulic oil pipe from loosening or slipping, improving the sealing and avoiding the occurrence of leakage. It solves the problem that the oil pipe sleeve in the current hydraulic system may loosen or slip due to various factors such as vibration during long-term use, thereby causing a decrease in sealing and even leakage.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tubing sleeve for a hydraulic system, comprising a joint core rod and a tubing sleeve body, wherein one end of the joint core rod is fixedly connected to a connecting nut, and the joint core rod passes through the tubing sleeve body, a fixing ring is fixedly sleeved on the outer surface of the joint core rod close to the connecting nut, a plurality of limiting grooves are equidistantly arranged in a circular array on the outer surface of the fixing ring, a fixing pipe is fixedly connected to the inner side of the fixing ring, and the joint core rod passes through the fixing pipe, an outer surface of the fixing pipe is provided with an external connecting thread, an inner wall of the tubing sleeve body is provided with an internal connecting thread close to the fixing ring, and a plurality of limiting sheets are fixedly connected in a circular array on the outer surface of the tubing sleeve body close to the internal connecting thread.

[0006] Preferably, the distance between the inner wall of the fixed tube and the outer surface of the joint core rod is greater than the wall thickness of the oil pipe.

[0007] Preferably, a hexagonal ring is fixedly sleeved on the outer surface of the oil pipe sleeve body.

[0008] Preferably, a plurality of annular raised strips are equidistantly provided on the inner wall of the oil pipe sleeve body, and a plurality of annular grooves are equidistantly provided on the outer surface of the joint core rod.

[0009] Preferably, the number of the annular raised bead and the number of the annular groove are equal, and the annular raised bead and the annular groove correspond one to one.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] The utility model achieves the effect of preventing the oil pipe sleeve on the hydraulic oil pipe from loosening or slipping off by arranging a joint core rod, an oil pipe sleeve body, an internal connecting thread, a fixing pipe, a fixing ring, an external connecting thread of a limiting card groove and a limiting sheet by arranging a joint core rod, a sealing performance is improved, and leakage is avoided. The end portion of the hydraulic oil pipe is sleeved on the outer surface of the joint core rod, and the end portion is inserted between the sleeve and the joint core rod. The oil pipe sleeve body is then moved to be sleeved on the end portion of the hydraulic oil pipe, so that the end portion of the hydraulic oil pipe is located between the oil pipe sleeve body and the joint core rod. The oil pipe sleeve body is then rotated so that the oil pipe sleeve body and the fixing pipe are fixedly connected by the internal connecting thread and the external connecting thread. After the connection is completed, the limiting sheet is bent again to make it enter the interior of the limiting card groove, thereby limiting the rotation of the oil pipe sleeve body, and the oil pipe sleeve body will not slip off the joint core rod.

[0012] 2. The utility model achieves the effect of preventing the hydraulic oil pipe from slipping out from between the joint core rod and the oil pipe sleeve body by providing an annular groove and an annular raised bead. The annular raised bead on the inner wall of the oil pipe sleeve body applies pressure to the hydraulic oil pipe to cause it to deform, and the deformed part enters the annular groove to limit the movement of the hydraulic oil pipe and prevent the hydraulic oil pipe from slipping out from between the joint core rod and the oil pipe sleeve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 Schematic diagram of the enlarged structure of A;

[0015] Figure 3 This is a schematic diagram of the partial three-dimensional structure of the oil pipe sleeve body of the utility model;

[0016] Figure 4 This is a schematic diagram of the partial three-dimensional structure of the connecting nut of the utility model;

[0017] Figure 5 This is a schematic diagram of the partial three-dimensional structure of the core rod of the joint of the utility model;

[0018] Figure 6It is a schematic diagram of the main cross-sectional structure of the utility model.

[0019] Figure numerals: 1. joint core rod; 2. oil pipe sleeve body; 3. hexagonal ring; 4. connecting nut; 5. fixing ring; 6. limiting groove; 7. limiting sheet; 8. internal connecting thread; 9. annular raised strip; 10. annular groove; 11. fixing tube; 12. external connecting thread. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments. Example

[0021] like Figures 1-6 As shown, the utility model proposes an oil pipe sleeve for a hydraulic system, comprising a joint core rod 1 and an oil pipe sleeve body 2. The joint core rod 1 is hollow inside and has two through-holes. One end of the joint core rod 1 is fixedly connected to a connecting nut 4. The joint core rod 1 is fixedly connected to the hydraulic equipment through the connecting nut 4, and the joint core rod 1 passes through the oil pipe sleeve body 2. A fixing ring 5 is fixedly sleeved on the side of the outer surface of the joint core rod 1 close to the connecting nut 4. The outer surface of the fixing ring 5 is provided with a plurality of limiting grooves 6 at equal intervals in a circular array. A fixing pipe 11 is fixedly connected to the inner side of the fixing ring 5, and the joint core rod 1 passes through the fixing pipe 11. The distance between the inner wall of the fixing pipe 11 and the outer surface of the joint core rod 1 is greater than the wall thickness of the oil pipe, which is convenient for The end of the hydraulic oil pipe is inserted between the fixed tube 11 and the joint core rod 1. The outer surface of the fixed tube 11 is provided with an external connecting thread 12. The inner wall of the oil pipe sleeve body 2 is provided with an internal connecting thread 8 on the side close to the fixed ring 5. The internal connecting thread 8 and the external connecting thread 12 match each other, so the oil pipe sleeve body 2 and the fixed tube 11 can be fixedly connected by the internal connecting thread 8 and the external connecting thread 12. A hexagonal ring 3 is fixedly sleeved on the outer surface of the oil pipe sleeve body 2. The setting of the hexagonal ring 3 facilitates the rotation of the oil pipe sleeve body 2 by a wrench. A number of limiting sheets 7 are fixedly connected in an annular array on the side close to the internal connecting thread 8. The number of limiting sheets 7 is equal to the limiting slots 6.

[0022] When the utility model is in use, the end of the hydraulic oil pipe is sleeved on the outer surface of the joint core rod 1, and the end is inserted between the joint core rod 1, and then the oil pipe sleeve body 2 is moved to be sleeved on the end of the hydraulic oil pipe, so that the end of the hydraulic oil pipe is located between the oil pipe sleeve body 2 and the joint core rod 1, and then the oil pipe sleeve body 2 is rotated so that the oil pipe sleeve body 2 and the fixed pipe 11 are fixedly connected through the internal connecting thread 8 and the external connecting thread 12. After the connection is completed, the limiting sheet 7 is bent again to make it enter the inside of the limiting groove 6, thereby limiting the rotation of the oil pipe sleeve body 2, and the oil pipe sleeve body 2 will not slip off the joint core rod 1. Example

[0023] like Figure 1 、 Figure 3 、 Figure 5 and Figure 6 As shown, the utility model proposes an oil pipe sleeve for a hydraulic system. Compared with the first embodiment, this embodiment also includes a plurality of annular raised strips 9 equidistantly provided on the inner wall of the oil pipe sleeve body 2, and a plurality of annular grooves 10 equidistantly provided on the outer surface of the joint core rod 1. The number of the annular raised strips 9 and the annular grooves 10 are equal, and the annular raised strips 9 and the annular grooves 10 correspond one to one.

[0024] In this embodiment, the annular raised strip 9 on the inner wall of the oil pipe sleeve body 2 applies pressure to the hydraulic oil pipe, causing it to deform, and the deformed part enters the annular groove 10 to limit the movement of the hydraulic oil pipe and prevent the hydraulic oil pipe from slipping between the joint core rod 1 and the oil pipe sleeve body 2.

[0025] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A tubing sleeve for a hydraulic system, comprising a joint core rod (1) and an tubing sleeve body (2), characterized in that: One end of the joint core rod (1) is fixedly connected to a connecting nut (4), and the joint core rod (1) passes through the oil pipe sleeve body (2); a fixing ring (5) is fixedly sleeved on the side of the outer surface of the joint core rod (1) close to the connecting nut (4); the outer surface of the fixing ring (5) is provided with a plurality of limiting slots (6) in an annular array and equidistantly spaced; the inner side of the fixing ring (5) is fixedly connected to a fixing pipe (11), and the joint core rod (1) passes through the fixing pipe (11); the outer surface of the fixing pipe (11) is provided with an external connecting thread (12); an inner wall of the oil pipe sleeve body (2) is provided with an internal connecting thread (8) on the side close to the fixing ring (5); and a plurality of limiting thin plates (7) are fixedly connected in an annular array and equidistantly spaced on the side of the outer surface of the oil pipe sleeve body (2) close to the internal connecting thread (8).

2. The oil pipe sleeve for a hydraulic system according to claim 1, characterized in that: The distance between the inner wall of the fixed tube (11) and the outer surface of the joint core rod (1) is greater than the wall thickness of the oil pipe.

3. The oil pipe sleeve for a hydraulic system according to claim 1, characterized in that: A hexagonal ring (3) is fixedly sleeved on the outer surface of the oil pipe sleeve body (2).

4. The oil pipe sleeve for a hydraulic system according to claim 1, characterized in that: The inner wall of the oil pipe sleeve body (2) is provided with a plurality of annular raised strips (9) at equal intervals, and the outer surface of the joint core rod (1) is provided with a plurality of annular grooves (10) at equal intervals.

5. The oil pipe sleeve for a hydraulic system according to claim 4, characterized in that: The number of the annular raised strips (9) and the annular grooves (10) is equal, and the annular raised strips (9) and the annular grooves (10) correspond one to one.

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