A steering pump with oil outlet joint that prevents loosening and leakage

Abstract

The invention discloses a steering pump with an oil outlet joint that is anti-loose and anti-leak, comprising a steering pump body provided with an oil outlet, an oil outlet pipe joint, a hollow bolt for hingedly connecting the oil outlet pipe joint to the oil outlet, and sealing gaskets respectively arranged between the oil outlet and the oil outlet pipe joint and between the oil outlet pipe joint and the hollow bolt; a positioning pin is arranged on the oil outlet pipe joint; a fixing bracket for fixing the positioning pin is arranged on the steering pump body. It can avoid shear deformation and damage of the sealing gasket due to rotation and extrusion, and improve the sealing performance.

Description

Technical Field

[0001] The invention belongs to the technical field of steering pumps, and in particular relates to a steering pump with an oil outlet joint that is anti-loosening and anti-leaking. Background Art

[0002] The steering pump oil outlet joint is the high-pressure end of the steering pump. As the oil outlet pressure increases, the risk of leakage increases. Most oil outlet joints and steering pumps use O-ring seals. The defect of this sealing solution is that when the oil outlet joint is installed, the O-ring will be rotated and squeezed due to the rotation of the joint, causing shear deformation and damage, resulting in seal failure. Even if it is improved to a sealing ring seal, the factory installation will still leak oil due to the rotation of the joint, causing shear deformation and damage to the rubber. Secondly, due to the lack of limit, it is impossible to avoid rotation loosening caused by subsequent vibration.

[0003] Therefore, the sealing problem of the existing traditional steering pump structure needs to be further improved. Summary of the invention

[0004] In order to solve the problem that the existing sealing gasket is damaged by rubber shear deformation due to rotational extrusion, the present invention proposes a steering pump with an oil outlet joint that is anti-loosening and anti-leakage, which can avoid the shear deformation and damage of the sealing gasket caused by rotational extrusion and improve the sealing performance.

[0005] The objective of the present invention is achieved through the following technical solutions: The present invention discloses a steering pump with an oil outlet joint that is anti-loose and anti-leak, comprising a steering pump body provided with an oil outlet, an oil outlet pipe joint, a hollow bolt for hingedly connecting the oil outlet pipe joint to the oil outlet, and sealing gaskets respectively arranged between the oil outlet and the oil outlet pipe joint and between the oil outlet pipe joint and the hollow bolt; A positioning pin is provided on the oil outlet pipe joint; A fixing bracket for fixing the positioning pin is arranged on the steering pump body.

[0006] The beneficial effects of the present invention are: 1. Under the action of the positioning pin and the fixing bracket, the hollow bolt of the oil outlet pipe joint of the present invention can be vertically pressed on the oil outlet of the steering pump during installation, effectively preventing the oil outlet pipe joint from rotating, that is, avoiding the oil outlet pipe joint from rotating to damage the sealing gasket, and preventing the rubber from shearing and deforming due to rotation and extrusion.

[0007] 2. The positioning pin and the fixing bracket of the present invention fix the oil outlet pipe joint, which can avoid the loosening of the fastening end due to vibration superposition during subsequent use and reduce the leakage problem of the steering pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0009] Figure 1 A perspective view of a steering pump according to the present invention; Figure 2 It is a side view of the steering pump of the present invention. DETAILED DESCRIPTION

[0010] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0011] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0012] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0013] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0014] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0015] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0016] The first aspect of the present invention discloses a steering pump with an oil outlet joint that is anti-loose and anti-leak, such as Figure 1 , 2 As shown, it includes a steering pump body, an oil outlet pipe joint 3, a sealing gasket 2, a hollow bolt 5, and a fixing bracket 7. The steering pump body is provided with an oil outlet 1. The connection structure of the steering pump body, the oil outlet pipe joint 3, the sealing gasket 2 and the hollow bolt 5 is the same as the existing structure, that is, the sealing gasket 2 is used to seal the oil outlet 1, and the hollow bolt 5 hinges the oil outlet pipe joint 3 to the oil outlet 1. A positioning pin 6 is provided on the oil outlet pipe joint 3; the fixing bracket 7 is provided on the steering pump body to fix the positioning pin 6. There are at least two sealing gaskets 2 and they are respectively placed between the oil outlet 1 and the oil outlet pipe joint 3 and between the oil outlet pipe joint 3 and the hollow bolt 5.

[0017] With the above structure, the oil outlet pipe joint 3 can be vertically pressed against the oil outlet of the steering pump under the action of the positioning pin 6 and the fixing bracket when the hollow bolt 5 is installed, which can effectively prevent the oil outlet pipe joint 3 from rotating, that is, avoid the oil outlet pipe joint 3 from rotating to damage the sealing gasket, and prevent the rubber from shearing and deforming due to rotation and extrusion. The positioning pin 6 and the fixing bracket are used to fix the oil outlet pipe joint 3, which can avoid the loosening of the fastening end due to vibration superposition during subsequent use, and reduce the leakage problem of the steering pump.

[0018] The fixing bracket 7 realizes the limiting of the positioning pin 6, which can be realized by various structures. For example, a groove structure adapted to the positioning pin 6 is provided on the fixing bracket 7, such as Figure 1 As shown; or a hole structure adapted to the positioning pin 6 is provided on the fixing bracket 7. In order to facilitate installation, it is preferred to adopt Figure 1 The structure shown.

[0019] The sealing gasket 2 adopts a combined gasket structure consisting of a copper frame and a rubber ring coated on the copper frame. The combined gasket structure is preferably adopted to further improve the anti-leakage capability.

[0020] The positioning pin 6 can be set at any position of the oil outlet pipe joint 3 as long as it can be stopped from rotating. In order to facilitate the setting of the fixed bracket, it is also convenient to install and fix the oil outlet pipe joint 3, such as Figure 1 As shown, the positioning pin 6 is arranged at the end of the oil outlet pipe joint 3.

[0021] The hollow bolt 5 includes a hollow screw and a nut sealed at one end of the hollow screw, and the hollow screw is provided with a through hole structure for connecting the oil outlet 1 and the oil outlet pipe joint 3. Specifically, two sealing gaskets are respectively placed between the oil outlet 1 and the oil outlet pipe joint 3, and between the oil outlet pipe joint 3 and the nut.

[0022] Those skilled in the art will appreciate that the embodiments described herein are intended to help readers understand the principles of the present invention, and should be understood that the protection scope of the present invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific variations and combinations that do not deviate from the essence of the present invention based on the technical revelations disclosed by the present invention, and these variations and combinations are still within the protection scope of the present invention.

Claims

1. A steering pump with an oil outlet joint that is anti-loose and anti-leak, comprising a steering pump body provided with an oil outlet (1), an oil outlet pipe joint (3), a hollow bolt (5) for hingedly connecting the oil outlet pipe joint (3) to the oil outlet (1), and sealing gaskets (2) respectively disposed between the oil outlet (1) and the oil outlet pipe joint (3) and between the oil outlet pipe joint (3) and the hollow bolt (5); characterized in that: The oil outlet pipe joint (3) is provided with a positioning pin (6); A fixing bracket (7) for fixing the positioning pin (6) is provided on the steering pump body.

2. A steering pump with an oil outlet joint that is anti-loosening and anti-leaking according to claim 1, characterized in that: The fixing bracket (7) is provided with a groove structure adapted to the positioning pin (6).

3. A steering pump with an oil outlet joint that is anti-loosening and anti-leaking according to claim 1, characterized in that: The fixing bracket (7) is provided with a groove structure adapted to the positioning pin (6).

4. A steering pump with an oil outlet joint that is anti-loosening and anti-leaking according to claim 1, characterized in that: The sealing gasket (2) comprises a copper frame and a rubber ring coated on the copper frame.

5. A steering pump with an oil outlet joint that is anti-loosening and anti-leaking according to claim 1, characterized in that: The sealing gasket (2) is a sealing ring.

6. A steering pump with an oil outlet joint that is anti-loosening and anti-leaking according to claim 1, characterized in that: The positioning pin (6) is arranged at the end of the oil outlet pipe joint (3).

7. A steering pump with an oil outlet joint that is anti-loosening and anti-leaking according to claim 1, characterized in that: The hollow bolt (5) comprises a hollow screw rod and a nut sealingly connected to one end of the hollow screw rod, and the hollow screw rod is provided with a through hole structure for connecting the oil outlet (1) and the oil outlet pipe joint (3).

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