Wear-resistant high-pressure oil pipe

Abstract

The utility model discloses a wear-resistant high-pressure oil pipe which comprises an oil pipe body, oil pipe joints are fixedly connected to the two ends of the oil pipe body, a protective sleeve is arranged on the outer side of the oil pipe body, the overall shape of the protective sleeve is spiral, and the protective sleeve comprises a spiral sleeve movably connected to the outer side of the oil pipe body in a sleeving mode. A spiral spring is fixedly connected in the spiral sleeve; the oil pipe body comprises an inner layer, a braid layer is fixedly connected to the outer side of the inner layer, and a wear-resistant layer is fixedly connected to the outer side of the braid layer; according to the oil pipe, a movable protection structure can be formed on the outer side of the oil pipe body through the arranged protection sleeve, the outer surface and the outer side of the oil pipe body are protected at the same time by being matched with the wear-resisting sleeve arranged on the surface of the oil pipe body, and therefore the good wear-resisting effect is achieved, and the oil pipe body is protected.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-pressure oil pipes, in particular to a wear-resistant high-pressure oil pipe. Background Art

[0002] High-pressure oil pipes are often used in harsh environments, such as high-pressure oil pipes on excavators and other hydraulic equipment. Since parts of the high-pressure oil pipes need to move continuously during operation, the surface of the moving high-pressure oil pipes is prone to wear, and the rest of the parts are not often worn, so they are easily damaged due to local wear and need to be replaced, which increases the cost. Therefore, it is necessary to provide a wear-resistant high-pressure oil pipe. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a wear-resistant high-pressure oil pipe, which effectively solves the problems raised by the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wear-resistant high-pressure oil pipe, comprising an oil pipe body, both ends of the oil pipe body are fixedly connected with oil pipe joints, a protective sleeve is arranged on the outside of the oil pipe body, the overall shape of the protective sleeve is spiral, the protective sleeve comprises a spiral sleeve movably sleeved on the outside of the oil pipe body, and a spiral spring is fixedly connected inside the spiral sleeve.

[0005] Preferably, the oil pipe body comprises an inner layer, a braided layer is fixedly connected to the outer side of the inner layer, and a wear-resistant layer is fixedly connected to the outer side of the braided layer.

[0006] Preferably, the inner layer is made of polyurethane, the braided layer is made of nylon fiber, and the wear-resistant layer is made of wear-resistant rubber.

[0007] Preferably, a wear-resistant sleeve is further provided on the outer side of the oil pipe body, both ends of the wear-resistant sleeve are fixed to the oil pipe body through fastening sleeves, and the wear-resistant sleeve is located between the oil pipe body and the protective sleeve.

[0008] Preferably, the wear-resistant sleeve comprises a protection strip, a clamping block is formed on the protection strip, a clamping groove is formed on a side of the protection strip away from the clamping block, and the clamping block and the clamping groove are in interference fit.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] During operation, the protective sleeve can form a movable protective structure on the outside of the oil pipe body, and cooperate with the wear-resistant sleeve set on the surface of the oil pipe body to form protection on the outer surface and outside of the oil pipe body at the same time, thereby achieving good wear-resistant effect and protecting the oil pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0012] In the attached picture:

[0013] Figure 1 This is a schematic diagram of the structure of a wear-resistant high-pressure oil pipe of the utility model;

[0014] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0015] Figure 3 This is a schematic diagram of the installation structure of the fastening sleeve of the utility model;

[0016] Figure 4 This is a schematic diagram of the protection strip structure of the utility model;

[0017] Figure 5 This is a schematic diagram of the oil pipe body structure of the utility model.

[0018] In the figure: 1. oil pipe body; 101. inner layer; 102. braided layer; 103. wear-resistant layer; 2. oil pipe joint; 3. protective sleeve; 301. spiral sleeve; 302. spiral spring; 4. wear-resistant sleeve; 401. protective strip; 402. clamping block; 403. clamping groove; 5. fastening sleeve. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] Embodiment 1, by Figure 1-5 The utility model relates to a wear-resistant high-pressure oil pipe, comprising an oil pipe body 1, both ends of the oil pipe body 1 are fixedly connected with oil pipe joints 2, a protective sleeve 3 is arranged on the outside of the oil pipe body 1, the overall shape of the protective sleeve 3 is spiral, the protective sleeve 3 comprises a spiral sleeve 301 movably sleeved on the outside of the oil pipe body 1, and a spiral spring 302 is fixedly connected inside the spiral sleeve 301;

[0021] This design makes it easy to form physical protection on the outside of the oil pipe body 1 through the protective sleeve 3. Specifically, the spiral sleeve 301 plays a wear-resistant role to avoid direct wear on the oil pipe body 1. At the same time, the set spiral spring 302 can play a supporting role to avoid direct squeezing of the oil pipe body 1 by objects. At the same time, since the protective sleeve 3 can be directly installed on the outside of the oil pipe body 1, it is more convenient to replace.

[0022] The oil pipe body 1 comprises an inner layer 101, a braided layer 102 is fixedly connected to the outer side of the inner layer 101, and a wear-resistant layer 103 is fixedly connected to the outer side of the braided layer 102;

[0023] The inner layer 101 is made of polyurethane, the braided layer 102 is made of nylon fiber, and the wear-resistant layer 103 is made of wear-resistant rubber;

[0024] Such a design can form wear resistance on the outer side of the oil pipe body 1, thereby improving the wear resistance.

[0025] A wear-resistant sleeve 4 is also provided on the outside of the oil pipe body 1. Both ends of the wear-resistant sleeve 4 are fixed to the oil pipe body 1 through fastening sleeves 5. The wear-resistant sleeve 4 is located between the oil pipe body 1 and the protective sleeve 3.

[0026] The wear-resistant sleeve 4 includes a protection strip 401, a clamping block 402 is formed on the protection strip 401, a clamping groove 403 is formed on a side of the protection strip 401 away from the clamping block 402, and the clamping block 402 and the clamping groove 403 are fitted by interference fit;

[0027] With this design, when in use, the protective strip 401 can be directly wound around the oil pipe body 1, and the clamping block 402 thereon cooperates with the clamping groove 403 to increase the tightness during winding and avoid loosening. Finally, the wrapped protective strip 401 can be fixed by the fastening sleeve 5, and the fastening sleeve 5 can be put on the oil pipe joint 2, thereby directly forming an additional wear-resistant structure on the outside of the oil pipe body 1 to play a protective role.

Claims

1. A wear-resistant high-pressure oil pipe, comprising an oil pipe body (1), both ends of the oil pipe body (1) being fixedly connected to oil pipe joints (2), characterized in that: A protective sleeve (3) is arranged on the outside of the oil pipe body (1); the overall shape of the protective sleeve (3) is spiral; the protective sleeve (3) comprises a spiral sleeve (301) movably sleeved on the outside of the oil pipe body (1); a spiral spring (302) is fixedly connected inside the spiral sleeve (301).

2. The wear-resistant high-pressure oil pipe according to claim 1, characterized in that: The oil pipe body (1) comprises an inner layer (101), a braided layer (102) is fixedly connected to the outer side of the inner layer (101), and a wear-resistant layer (103) is fixedly connected to the outer side of the braided layer (102).

3. A wear-resistant high-pressure oil pipe according to claim 2, characterized in that: The inner layer (101) is made of polyurethane, the braided layer (102) is made of nylon fiber, and the wear-resistant layer (103) is made of wear-resistant rubber.

4. The wear-resistant high-pressure oil pipe according to claim 1, characterized in that: A wear-resistant sleeve (4) is also provided on the outside of the oil pipe body (1), both ends of the wear-resistant sleeve (4) are fixed to the oil pipe body (1) by means of fastening sleeves (5), and the wear-resistant sleeve (4) is located between the oil pipe body (1) and the protective sleeve (3).

5. The wear-resistant high-pressure oil pipe according to claim 4, characterized in that: The wear-resistant sleeve (4) comprises a protection strip (401), a clamping block (402) is formed on the protection strip (401), a clamping groove (403) is formed on a side of the protection strip (401) away from the clamping block (402), and the clamping block (402) and the clamping groove (403) are fitted in an interference fit.

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