Pipeline for steering system, steering system and vehicle

Abstract

The utility model discloses a pipeline for a steering system, the steering system and a vehicle. The pipeline for the steering system comprises a first pipeline and a second pipeline, at least one part of the second pipeline is matched in the first pipeline; the fastening piece is arranged on the peripheral face of the first pipeline in a surrounding mode, and the fastening piece is opposite to the at least one part of the second pipeline; and the sealing piece is arranged between the inner wall surface of the first pipeline and the peripheral surface of at least one part of the second pipeline, and the sealing piece and the fastening piece are opposite in the radial direction of the second pipeline. According to the pipeline for the steering system, the sealing performance of the pipeline is improved, and liquid seepage or liquid leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a pipeline for a steering system, a steering system and a vehicle. Background Art

[0002] The vehicle's steering system is a hydraulic power steering system. The low-pressure pipeline of the steering system is usually connected by a steel pipe and a rubber pipe, and the oil flows in the low-pressure pipeline. Once there is an oil leak in the low-pressure pipeline, the steering system will lose power, which will cause great safety hazards to the operation of the vehicle while driving. In the related technology, the sealing of the low-pressure pipeline is poor and is prone to oil leakage. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a pipeline for a steering system, which improves the sealing performance of the pipeline and avoids liquid seepage or leakage.

[0004] Another object of the utility model is to provide a steering system using the above pipeline.

[0005] Another object of the present invention is to provide a vehicle adopting the above steering system.

[0006] According to an embodiment of the first aspect of the utility model, a pipeline for a steering system includes: a first pipeline; a second pipeline, at least a portion of the second pipeline is fitted in the first pipeline; a fastener, the fastener is arranged on the outer circumferential surface of the first pipeline, and the fastener is opposite to the at least portion of the second pipeline; a seal, the seal is arranged between the inner wall surface of the first pipeline and the outer circumferential surface of the at least portion of the second pipeline, and the seal and the fastener are opposite to each other along the radial direction of the second pipeline.

[0007] According to the pipeline of the utility model, the sealing member is filled between the first pipeline and the second pipeline, and the sealing member deforms and expands to fit better than the fitting effect between the first pipeline and the second pipeline, thereby effectively avoiding the first pipeline and the second pipeline from being loosely fitted due to aging, processing accuracy and roughness, avoiding liquid seepage or leakage between the first pipeline and the second pipeline, and improving the sealing of the pipeline. When the pipeline is used in a steering system, the safety of the steering system is improved, and the safety and reliability of vehicle use are improved. In addition, the aging of the sealing member is avoided, and the service life of the sealing member is extended.

[0008] According to some embodiments of the present invention, a receiving groove is formed on the outer circumferential surface of the at least a portion of the second pipe, and the sealing member is fitted in the receiving groove.

[0009] According to some embodiments of the present invention, the outer peripheral surface of the sealing member is respectively in contact with the inner wall surface of the first pipe and the side wall of the containing groove.

[0010] According to some embodiments of the present invention, the sealing member is interference-fitted between the inner wall surface of the first pipe and the outer peripheral surface of the at least a portion of the second pipe.

[0011] According to some embodiments of the present invention, the sealing member is opposite to the central position of the fastener along the axial direction of the second pipe.

[0012] According to some embodiments of the present invention, at least a portion of the second pipe has a sealing portion, the sealing portion and the sealing member are arranged axially spaced apart from each other along the second pipe, and the sealing portion and the fastener are spaced apart from each other along the axial direction of the second pipe.

[0013] According to some embodiments of the present invention, the sealing portion is formed by a portion of the outer peripheral surface of the second pipe protruding toward the inner wall surface of the first pipe.

[0014] According to some embodiments of the present invention, the sealing element is a rubber element; and / or the first pipe is a rubber pipe; and / or the second pipe is a steel pipe.

[0015] The steering system according to the second aspect of the present invention comprises the pipeline for the steering system according to the first aspect of the present invention.

[0016] A vehicle according to an embodiment of the third aspect of the utility model comprises a steering system according to an embodiment of the second aspect of the utility model.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic diagram of a pipeline according to an embodiment of the utility model;

[0020] Figure 2 is an exploded view of a pipeline according to an embodiment of the utility model;

[0021] Figure 3 is a cross-sectional view of a pipeline according to an embodiment of the utility model;

[0022] Figure 4 yes Figure 3 Enlarged view of section A shown in the middle circle.

[0023] Reference numerals:

[0024] 100. Pipeline;

[0025] 1. The first pipeline;

[0026] 2. second pipe; 21. receiving groove; 22. sealing part;

[0027] 3. Fasteners; 4. Seals. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figure 1-Figure 4 The pipeline 100 according to the first aspect of the embodiment of the utility model is described. The pipeline 100 can be used in a steering system (not shown). In the following description of the application, the pipeline 100 is used in a steering system as an example for detailed description.

[0029] like Figure 1 and Figure 2 As shown, a pipeline 100 for a steering system according to an embodiment of the first aspect of the utility model comprises a first pipeline 1 , a second pipeline 2 , a fastener 3 and a sealing member 4 .

[0030] Specifically, at least a portion of the second pipe 2 fits inside the first pipe 1, and the fastener 3 is disposed around the outer circumference of the first pipe 1, and the fastener 3 is opposite to at least a portion of the second pipe 2. Figure 2 In the example, a portion of the right end of the second pipe 2 (i.e., at least the above-mentioned portion of the second pipe 2) is inserted into the left end of the first pipe 1, and the fastener 3 fits around the outer circumference of the first pipe 1, and the fastener 3 clamps the first pipe 1 and the second pipe 2, and the fastener 3 and the portion of the right end of the second pipe 2 extending into the first pipe 1 are opposite to each other along the radial direction of the second pipe 2.

[0031] Thus, the fastener 3 squeezes the first pipe 1 so that the first pipe 1 and the second pipe 2 fit closely together, thereby enhancing the assembly stability and connection tightness of the first pipe 1 and the second pipe 2, thereby preventing the first pipe 1 from falling off the second pipe 2, and also preventing the liquid (for example, oil) from flowing out from between the inner wall surface of the first pipe 1 and the outer peripheral surface of the second pipe 2 when the liquid flows through the assembly of the first pipe 1 and the second pipe 2, thereby improving the sealing of the assembly of the first pipe 1 and the second pipe 2, and also facilitating the long-term and stable use of the pipeline 100. It should be noted that the fastener 3 can be a hoop or a worm gear drive hose hoop. But it is not limited to this.

[0032] Combination Figure 1 and Figure 3 The seal 4 is disposed between the inner wall surface of the first pipe 1 and the outer peripheral surface of at least a portion of the second pipe 2, and the seal 4 and the fastener 3 are opposite to each other along the radial direction of the second pipe 2. Figure 1 and Figure 3 In the example, the seal 4 is annular and is sleeved on the outer circumference of the second pipe 2. The seal 4 is located between the inner wall surface of the left end of the first pipe 1 and the outer circumference surface of the right end of the second pipe 2. The fastener 3 squeezes the first pipe 1 and the seal 4, and the seal 4 is deformed so that the outer circumference of the seal 4 is tightly sealed with the inner wall surface of the first pipe 1 and the outer circumference surface of the second pipe 2.

[0033] With such arrangement, the seal 4 is filled between the first pipe 1 and the second pipe 2, filling the gap between the first pipe 1 and the second pipe 2 formed under the influence of aging, processing accuracy and roughness, thereby further improving the sealing of the connection between the first pipe 1 and the second pipe 2, effectively avoiding liquid seepage or leakage, and further improving the sealing of the pipeline 100. When the pipeline 100 is used in a steering system, the safety of the steering system is also improved, thereby improving the safety and reliability of vehicle use. Moreover, the deformation and expansion and tight fitting effect of the seal 4 is better than the plane fitting effect of the first pipe 1 and the second pipe 2, avoiding the loose plane fitting caused by the processing accuracy and roughness of the second pipe 2 and the aging of the first pipe 1, and improving the sealing of the overall pipeline 100 connection. In addition, the seal 4 is located between the first pipe 1 and the second pipe 2, so that the seal 4 is not easily corroded and aged by the outside world, thereby extending the service life of the seal 4, and thus allowing the steering system to be used normally for a long time.

[0034] According to the pipeline 100 of the utility model, the seal 4 is filled between the first pipeline 1 and the second pipeline 2, and the deformation and expansion of the seal 4 is better than the fitting effect between the first pipeline 1 and the second pipeline 2, thereby effectively avoiding the first pipeline 1 and the second pipeline 2 from being loosely fitted due to aging, processing accuracy and roughness, avoiding liquid seepage or leakage between the first pipeline 1 and the second pipeline 2, and improving the sealing of the pipeline 100. When the pipeline 100 is used in a steering system, the safety of the steering system is improved, and the safety and reliability of vehicle use are improved. In addition, the aging of the seal 4 is avoided, and the service life of the seal 4 is extended.

[0035] According to some embodiments of the present invention, referring to Figure 2 and Figure 3 A receiving groove 21 is formed on the outer peripheral surface of at least a portion of the second pipe 2, and the sealing member 4 is fitted in the receiving groove 21. Figure 2 and Figure 3In the example, the receiving groove 21 is formed on the outer peripheral surface of the right end of the second pipe 2. With such a configuration, the receiving groove 21 can accommodate the seal 4, improve the use stability of the seal 4, and avoid displacement of the seal 4 during the assembly process of the first pipe 1 and the second pipe 2, thereby effectively ensuring that the seal 4 and the fastener 3 are opposite to each other along the radial direction of the second pipe 2, thereby effectively ensuring the sealing of the pipeline 100. Moreover, the receiving groove 21 has a positioning effect on the seal 4, so as to facilitate the rapid assembly of the seal 4 and the second pipe 2. In addition, the contact area between the seal 4 and the outer peripheral surface of the second pipe 2 is increased, that is, the degree of fit between the seal 4 and the outer peripheral surface of the second pipe 2 and the inner wall surface of the first pipe 1 is strengthened, thereby further improving the sealing of the pipeline 100. In addition, the receiving groove 21 has a simple structure and is easy to process and form, thereby improving the production efficiency of the second pipe 2.

[0036] According to some embodiments of the present invention, referring to Figure 3 The outer peripheral surface of the sealing member 4 is respectively in contact with the inner wall surface of the first pipe 1 and the side wall of the receiving groove 21. Figure 3 In the example, the outer peripheral surface of the seal 4 facing away from the second pipe 2 is in contact with the inner wall surface of the first pipe 1, and the outer peripheral surface of the seal 4 facing the second pipe 2 is in contact with the side wall of the receiving groove 21. Therefore, after the fastener 3 clamps the first pipe 1, the outer peripheral surface of the seal 4 is in close contact with the inner wall surface of the first pipe 1 and the side wall of the receiving groove 21, further reducing the gap between the inner wall surface of the first pipe 1 and the outer peripheral surface of the second pipe 2, further preventing the liquid from flowing out from between the inner wall surface of the first pipe 1 and the seal 4, and between the side wall of the receiving groove 21 and the seal 4, thereby further improving the sealing performance of the pipeline 100, and further improving the safety performance of the steering system, and improving the reliability of the vehicle.

[0037] According to some optional embodiments of the utility model, the seal 4 is interference-fitted between the inner wall surface of the first pipe 1 and the outer peripheral surface of at least a part of the second pipe 2. That is to say, the outer peripheral surface of the seal 4 is not only in contact and fit with the inner wall surface of the first pipe 1 and the outer peripheral surface of the second pipe 2, but also the interaction force after the seal 4 and the first pipe 1 and the second pipe 2 are interference-fitted makes the connection between the seal 4 and the first pipe 1 and the second pipe 2 tighter. Thus, through the interference fit, the sealing performance of the seal 4 and the inner wall surface of the first pipe 1 is improved, and the sealing performance of the seal 4 and the outer peripheral surface of the second pipe 2 is also improved, thereby effectively further improving the sealing performance of the pipeline 100. In addition, the connection between the first pipe 1 and the second pipe 2 is also more secure, which improves the connection stability of the first pipe 1 and the second pipe 2. In addition, the production steps of the pipeline 100 are also reduced, thereby improving the production efficiency of the pipeline 100 and reducing the production cost of the pipeline 100.

[0038] Optionally, refer to Figure 3 , the sealing member 4 is opposite to the central position of the fastener 3 along the axial direction of the second pipe 2. For example, Figure 3 In the example, the seal 4 and the fastener 3 are opposite to each other in the left-right direction. With such arrangement, the extrusion strength of the fastener 3 on the seal 4 is improved while ensuring the extrusion effect of the fastener 3 on the seal 4, thereby improving the tightness of the seal 4 and the inner wall surface of the first pipe 1 and the outer peripheral surface of at least a part of the second pipe 2, respectively, and further improving the sealing performance of the pipeline 100. Moreover, the fastener 3 is more balanced after being installed on the first pipe 1, and the matching stability of the fastener 3 and the first pipe 1 is improved.

[0039] According to some embodiments of the present invention, referring to Figure 2 and Figure 3 , at least a portion of the second pipe 2 has a sealing portion 22, the sealing portion 22 and the sealing member 4 are arranged at intervals along the axial direction of the second pipe 2, and the sealing portion 22 and the fastener 3 are spaced apart along the axial direction of the second pipe 2. For example, in Figure 2 and Figure 3 In the example, the sealing portion 22 is formed on the right end of the second pipe 2, the sealing portion 22 is located on the right side of the sealing member 4, and the sealing portion 22 is located on the right side of the fastener 3. In this way, the contact area between the outer circumference of the second pipe 2 and the inner wall of the first pipe 1 is increased, and the sealing portion 22 improves the fitting effect between the outer circumference of the second pipe 2 and the inner wall of the first pipe 1, thereby further improving the sealing effect of the pipeline 100 under the double sealing of the sealing member 4 and the sealing portion 22. Moreover, the connection strength between the first pipe 1 and the second pipe 2 is also improved, and the first pipe 1 is prevented from falling off from the second pipe 2, thereby improving the use stability of the pipeline 100. In addition, the influence of the fastener 3 on the extrusion effect of the seal 4 is avoided, and the stability and strength of the extrusion of the seal 4 by the fastener 3 are improved, thereby improving the sealing effect of the assembly of the first pipe 1 and the second pipe 2.

[0040] Further, refer to Figure 3 and Figure 4 The sealing portion 22 is formed by a portion of the outer peripheral surface of the second pipe 2 protruding toward the inner wall surface of the first pipe 1. Figure 3 and Figure 4 In the example of , the outer peripheral surface of the sealing portion 22 is generally arc-shaped. Therefore, the sealing portion 22 has a simple structure and is easy to form, thereby improving the production efficiency of the sealing portion 22, thereby improving the production efficiency of the second pipeline 2, and improving the production efficiency of the pipeline 100. In addition, the interference fit between the sealing portion 22 and the first pipeline 1 is effectively ensured, thereby effectively improving the sealing performance of the pipeline 100.

[0041] Optionally, refer to Figure 4, the minimum distance between the center of the sealing portion 22 and the side of the fastener 3 close to the sealing portion 22 along the axial direction of the second pipe 2 is d, where d satisfies: 5mm≤d≤8mm. When the distance d between the center of the sealing portion 22 and the side of the fastener 3 close to the sealing portion 22 along the axial direction of the second pipe 2 is less than 5mm, the distance between the center of the sealing portion 22 and the fastener 3 is small, and when the fastener 3 fastens the sealing member 4, the edge of the fastener 3 is easily fastened to the edge of the sealing portion 22, thereby reducing the fastening strength and fastening stability of the fastener 3 to the sealing member 4, thereby reducing the sealing performance of the pipeline 100. When the distance d between the center of the sealing portion 22 and the side of the fastener 3 close to the sealing portion 22 along the axial direction of the second pipe 2 is greater than 8mm, the distance between the center of the sealing portion 22 and the fastener 3 is large, increasing the overlapping length between the first pipe 1 and the second pipe 2, thereby reducing the utilization rate of the first pipe 1 and the second pipe 2, resulting in a waste of resources. Thus, by setting the distance d between the center of the sealing portion 22 and the side of the fastener 3 close to the sealing portion 22 along the axial direction of the second pipe 2, when 5mm≤d≤8mm is satisfied, the distance between the center of the sealing portion 22 and the fastener 3 is reasonably set, thereby avoiding the influence of the sealing portion 22 on the fastening effect of the fastener 3 on the sealing member 4, improving the fastening strength and fastening stability of the fastener 3 on the sealing member 4, and further improving the sealing performance of the pipeline 100. In addition, the overlapping length of the first pipe 1 and the second pipe 2 is reasonable, which improves the utilization rate of the first pipe 1 and the second pipe 2, thereby avoiding waste of resources.

[0042] According to some embodiments of the utility model, the seal 4 is a rubber part; and / or, the first pipe 1 is a rubber tube; and / or, the second pipe 2 is a steel tube. For example, the settings of the seal 4, the first pipe 1 and the second pipe 2 include the following situations: First, the seal 4 is a rubber part. Second, the first pipe 1 is a rubber tube. Third, the second pipe 2 is a steel tube. Fourth, the seal 4 is a rubber part, the first pipe 1 is a rubber tube, and the second pipe 2 is a steel tube. As a result, the rubber part and the rubber tube are easy to shape and obtain, and have good wear resistance and good elasticity, thereby extending the service life of the seal 4 and the first pipe 1, and also improving the production efficiency of the seal 4 and the first pipe 1. Moreover, by setting the seal 4 as a rubber part, the seal 4 can be deformed after being squeezed by the fastener 3 to better fit with the inner wall surface of the first pipe 1 and the outer peripheral surface of the second pipe 2, and the expansion and tightening fitting effect of the rubber part is much higher than the plane fitting of the rubber tube and the steel tube, thereby achieving an improvement in the sealing effect. In addition, the steel pipe has a strong structural strength and a low price, thereby improving the structural strength of the second pipeline 2 and reducing the production cost of the second pipeline 2. In addition, it is also convenient to assemble the first pipeline 1 and the second pipeline 2, and improves the assembly efficiency of the first pipeline 1 and the second pipeline 2.

[0043] The steering system (not shown) according to the embodiment of the second aspect of the utility model comprises the pipeline 100 for the steering system according to the embodiment of the first aspect of the utility model.

[0044] According to the steering system of the present invention, by adopting the above-mentioned pipeline 100, the sealing performance of the steering system is improved, thereby improving the usability of the steering system.

[0045] A vehicle (not shown) according to an embodiment of the third aspect of the utility model comprises a steering system according to an embodiment of the second aspect of the utility model.

[0046] According to the vehicle of the utility model, by adopting the above-mentioned steering system, the safety and reliability of vehicle use are improved.

[0047] The steering system and other components and operations of the vehicle according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail here.

[0048] In the description of the present invention, it should be understood that the terms "center", "left", "right", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0050] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A pipeline for a steering system, characterized in that: include: First pipeline; a second conduit, at least a portion of which fits within the first conduit; A fastener, the fastener is disposed around the outer circumference of the first pipe, and the fastener is opposite to the at least a portion of the second pipe; A sealing member is provided between the inner wall surface of the first pipe and the outer peripheral surface of the at least a portion of the second pipe, and the sealing member is opposite to the fastener along the radial direction of the second pipe.

2. The pipeline for a steering system according to claim 1, characterized in that: An accommodating groove is formed on the outer peripheral surface of the at least a portion of the second pipe, and the sealing member is fitted in the accommodating groove.

3. The pipeline for a steering system according to claim 2, characterized in that: The outer peripheral surface of the sealing member is respectively in contact with the inner wall surface of the first pipe and the side wall of the containing groove.

4. The pipeline for a steering system according to claim 1, characterized in that: The sealing member is interference-fitted between the inner wall surface of the first pipe and the outer peripheral surface of the at least a portion of the second pipe.

5. The pipeline for a steering system according to claim 1, characterized in that: The sealing member is opposite to a center position of the fastener in the axial direction of the second pipe.

6. The pipeline for a steering system according to claim 1, characterized in that: A sealing portion is provided on the at least a portion of the second pipe, the sealing portion and the sealing member are arranged at intervals along the axial direction of the second pipe, and the sealing portion and the fastener are spaced apart along the axial direction of the second pipe.

7. The pipeline for a steering system according to claim 6, characterized in that: The sealing portion is formed by a portion of the outer peripheral surface of the second pipe protruding toward the inner wall surface of the first pipe.

8. The pipeline for a steering system according to any one of claims 1 to 7, characterized in that: The sealing element is a rubber element; and / or The first pipe is a rubber pipe; and / or The second pipeline is a steel pipe.

9. A steering system, characterized in that: The invention comprises a pipeline for a steering system according to any one of claims 1 to 8.

10. A vehicle, characterized in that: Comprising a steering system according to claim 9.

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