Connecting sleeve between the special pump and the oil circuit board for the automotive tailgate power unit

Abstract

This utility model discloses a connecting sleeve for a dedicated pump and hydraulic circuit board in an automotive tailgate power unit. The sleeve includes a body with a threaded connector fixedly mounted at one end. A groove is formed on the inner wall of the threaded connector, within which 2-3 layers of filter screens are stacked. An annular groove is formed on the inner wall of the threaded connector, within which a retaining spring is installed. The retaining spring abuts against the outer edge of one end of the filter screen. This multi-layered filter screen filters impurities such as iron filings from the hydraulic oil, preventing them from flowing with the hydraulic oil. This ensures the stability of the filter screen's position and facilitates disassembly and cleaning. The retaining spring limits the position of the filter screen, ensuring it does not shift, preventing equipment malfunctions, and guaranteeing the normal operation of the tailgate.

Description

Technical Field

[0001] This utility model belongs to the field of threaded sleeve technology, and in particular relates to the threaded sleeve connecting the special pump and the oil circuit board of the power unit of automobile tailgate. Background Technology

[0002] The dedicated pump of the automotive tailgate power unit is connected to the hydraulic circuit board via a screw sleeve. Hydraulic oil in the oil tank is pumped by the pump body to the hydraulic circuit board, and then delivered to the lifting or tilting cylinder of the tailgate, thereby driving the tailgate to complete various actions. During the long-term operation of the automotive tailgate power unit, impurities such as iron filings will be generated in the oil. These impurities flow with the oil and can easily cause equipment failure, resulting in the tailgate not working properly. Utility Model Content

[0003] To solve the above problems, this utility model provides a special pump for automobile tailgate power unit and oil circuit board connection screw sleeve.

[0004] This utility model is implemented as follows: A connecting sleeve for the power unit pump and oil circuit board of an automobile tailgate includes a sleeve body. The inner wall of the sleeve body is provided with internal threads for easy threaded connection with one component. One end of the sleeve body is fixedly provided with a threaded connector for easy threaded connection with another component. The threaded connector is hollow and connected to the interior of the sleeve body to allow the flow of hydraulic oil. A groove is formed on the inner wall of the threaded connector near the opening to place and limit the filter screen. Two to three layers of filter screens are stacked in the groove, and the outer edge of one end of the filter screen is connected to the thread at the bottom of the groove. The inner walls of the connector are pressed together, and multiple layers of filter screens filter impurities such as iron filings in the hydraulic oil, preventing them from flowing with the hydraulic oil and ensuring the stability of the filter screen position. The diameter of the filter screen is the same as the inner diameter of the groove to prevent the filter screen from shifting. An annular groove is formed on the inner wall of the threaded connector located at the groove to limit the position of the retaining spring. The retaining spring is installed in the annular groove and abuts against the outer edge of one end of the filter screen. The inner diameter of the retaining spring is smaller than the diameter of the filter screen. The retaining spring limits the position of the filter screen to ensure that the filter screen does not move.

[0005] Preferably, the diameter of the filter screen is 9 to 13 mm.

[0006] Preferably, the filter screen has a mesh size of 35 to 45 mesh to ensure a reliable filtration effect on impurities such as iron filings.

[0007] Preferably, the center of the groove, the center of the threaded joint, and the center of the sleeve are on the same straight line.

[0008] Preferably, the inner diameter of the sleeve is larger than the inner diameter of the groove, and the inner diameter of the groove is larger than the inner diameter of the threaded joint.

[0009] Preferably, the outer surface of the sleeve is a regular polygon to prevent the sleeve from rolling.

[0010] The beneficial effects of this utility model are: by filtering impurities such as iron filings in hydraulic oil through multi-layer filter screens, it prevents them from flowing with the hydraulic oil, ensuring the stability of the filter screen position and facilitating disassembly and cleaning. The position of the filter screen is limited by the snap ring, ensuring that the filter screen will not move, avoiding equipment failure and ensuring the normal operation of the tail plate. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of one side of the threaded connector; In the diagram: 1. Sleeve body; 2. Internal thread; 3. Threaded joint; 4. Groove; 5. Filter screen; 6. Ring groove; 7. Snap ring. Detailed Implementation

[0012] To better understand the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, further illustrates this utility model.

[0013] like Figure 1 and 2 The shown is a connecting sleeve between the automotive tailgate power unit pump and the hydraulic circuit board, including a sleeve body 1. The outer surface of the sleeve body 1 is a regular polygon to prevent rolling. An internal thread 2 is provided on the inner wall of the sleeve body 1 for threaded connection with a component. A threaded connector 3 is fixedly provided at one end of the sleeve body 1 for threaded connection with another component. The threaded connector 3 is hollow and connected to the interior of the sleeve body 1, allowing hydraulic oil to flow. A groove 4 is formed on the inner wall of the threaded connector 3 near the opening to place and limit the filter screen 5. The center of the groove 4, the center of the threaded connector 3, and the center of the sleeve body 1 are on the same straight line. Two layers of filter screens 5 are stacked inside the groove 4, with one outer edge of the filter screen 5 abutting against the inner wall of the threaded connector 3 at the bottom of the groove 4. The multiple layers of filter screens 5 filter impurities such as iron filings in the hydraulic oil, preventing them from flowing with the hydraulic oil and ensuring the stability of the filter screen 5 position. The diameter of the filter screen 5 is 11mm, and the mesh size is 40 mesh, ensuring reliable filtration of impurities such as iron filings. The diameter of the filter screen 5 is the same as the inner diameter of the groove 4 to prevent the filter screen 5 from shifting. An annular groove 6 is provided on the inner wall of the threaded joint 3 located in the groove 4 to limit the position of the retaining spring 7. The retaining spring 7 is provided in the annular groove 6 and abuts against the outer edge of one end of the filter screen 5. The inner diameter of the retaining spring 7 is smaller than the diameter of the filter screen 5. The retaining spring 7 limits the position of the filter screen 5 to ensure that the filter screen 5 does not move.

[0014] The inner diameter of the sleeve 1 is larger than the inner diameter of the groove 4, and the inner diameter of the groove 4 is larger than the inner diameter of the threaded joint 3.

[0015] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A connecting sleeve for a special pump and oil circuit board of a car tailgate power unit, comprising a sleeve body, wherein the inner wall of the sleeve body is provided with an internal thread, and a threaded joint is fixedly provided at one end of the sleeve body, wherein the threaded joint is hollow and communicating with the interior of the sleeve body, characterized in that, The threaded connector has a groove on its inner wall near the opening. Two to three layers of filter screens are stacked in the groove, and the outer edge of one end of the filter screen abuts against the inner wall of the threaded connector at the bottom of the groove. The diameter of the filter screen is the same as the inner diameter of the groove. An annular groove is formed on the inner wall of the threaded connector located in the groove. A retaining spring is provided in the annular groove. The retaining spring abuts against the outer edge of one end of the filter screen. The inner diameter of the retaining spring is smaller than the diameter of the filter screen.

2. The connecting threaded sleeve between the special pump for the automotive tailgate power unit and the oil circuit board according to claim 1, characterized in that, The diameter of the filter screen is 9–13 mm.

3. The connecting threaded sleeve between the special pump for the automotive tailgate power unit and the oil circuit board according to claim 2, characterized in that, The mesh size of the filter is 35 to 45 mesh.

4. The connecting threaded sleeve between the special pump for the automotive tailgate power unit and the oil circuit board according to claim 1, characterized in that, The center of the groove, the center of the threaded joint, and the center of the sleeve are on the same straight line.

5. The connecting threaded sleeve between the special pump for the automotive tailgate power unit and the oil circuit board according to claim 1, characterized in that, The inner diameter of the sleeve is larger than the inner diameter of the groove, and the inner diameter of the groove is larger than the inner diameter of the threaded joint.

6. The connecting threaded sleeve between the special pump for the automotive tailgate power unit and the oil circuit board according to claim 1, characterized in that, The exterior of the sleeve is a regular polygon.

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