Quick connecting piece for washing pipeline

Abstract

The utility model relates to the technical field of automobile washing systems, in particular to a quick connecting piece for a washing pipeline. A quick connecting piece for a washing pipeline comprises a connecting pipe and a connector, the connecting pipe is of an integrated structure composed of a tubular section and a connecting section, the connector is connected to one end of the tubular section, the interior of the tubular section is hollow to form a valve cavity, a valve element is arranged in the valve cavity, arc-shaped notches are symmetrically formed in the circumferential wall of the connecting section, and the valve element is arranged in the arc-shaped notches. Clamping parts are arranged on the connecting section on the two sides of the arc-shaped notch, buckles matched with the clamping parts are arranged on the clamping parts, and a sealing ring is installed on the inner wall, close to the tubular section, of the connecting section. According to the utility model, the quick-mounting function and the non-return function can be simultaneously realized on one connecting piece, so that the cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile washing systems, in particular to a quick connector for washing pipelines. Background Art

[0002] The automobile washing system includes a guide pipe, a washing liquid tank, a washing pipeline and a washing liquid tank bracket. When arranging the washing pipeline, it is necessary to avoid turning angles less than 90°, avoid sharp edges of sheet metal and other parts, and combine the layout position of the surrounding parts and meet the convenience of disassembly and assembly during after-sales maintenance. Therefore, the washing pipeline needs to be equipped with joints to connect the pipeline. Due to the high requirements for the layout of the washing pipeline, it is necessary to design a connector that can connect quickly, firmly and ensure the sealing of the connection.

[0003] In addition, a structure with a check function needs to be set on the washing pipeline to ensure that the washing liquid can only flow in one direction and cannot flow back. If a check valve is used, the number of connection points on the washing pipeline is increased. The more connection points there are, the lower the assembly efficiency and the stability of quality assurance will be. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a quick connector for a washing pipeline.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a quick connector for a washing pipeline, including a connecting pipe and a joint, the connecting pipe is an integrated structure composed of a tubular section and a connecting section, the joint is connected to one end of the tubular section, the tubular section is hollow inside to form a valve cavity, a valve core is arranged in the valve cavity, an arc-shaped notch is symmetrically provided on the peripheral wall of the connecting section, a clamping part is arranged on the connecting section on both sides of the arc-shaped notch, a buckle cooperating with the clamping part is arranged on the clamping part, and a sealing ring is installed on the inner wall of the connecting section close to the tubular section.

[0006] Furthermore, the joint includes a matching section extending into the tubular section, an annular portion covering the end of the tubular section, and a joint portion protruding from the annular portion, a ring protruding from the outer wall of the matching section, and an end of the joint portion is a frustum structure.

[0007] Furthermore, an annular groove cooperating with the ring is provided on the inner wall of the tubular section.

[0008] Furthermore, a step is provided on the inner wall of the matching section, the valve core comprises a spring and a valve block connected to one end of the spring, and the other end of the spring abuts against the step surface of the step.

[0009] Furthermore, a connection between the tubular section and the connecting section is provided with a closing end, and a diameter of the closing end is smaller than a diameter of the valve block.

[0010] Furthermore, the engaging portion includes a plane located at the top and arc-shaped supporting surfaces located at both sides of the plane, and inner grooves are provided at the upper and lower parts of the arc-shaped supporting surfaces.

[0011] Furthermore, the buckle is a door-shaped structure, the middle section of the inner wall of the buckle is provided with a convex block extending into the arc-shaped notch, and both sides of the lower part of the convex block are provided with protrusions matching with the inner groove of the locking part.

[0012] Furthermore, the inner wall of the protrusion is configured as a curved surface structure.

[0013] The beneficial effects of the utility model are as follows: a valve cavity is formed inside the tubular section of the connecting pipe of the utility model, a valve core is arranged in the valve cavity, so that the integral connecting piece has the function of a check valve; a joint is connected to one end of the tubular section, which is convenient for connecting with a pipeline; a clamping part is arranged on the connecting section, which cooperates with the buckle, which is convenient for connecting with a two-way connection, improves the overall assembly efficiency, and ensures the stability of the assembly quality. The utility model can realize the quick-installation function and the check function on one connecting piece at the same time, effectively reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is an assembly drawing of the utility model.

[0017] Figure 3 It is a cross-sectional view of the utility model.

[0018] Figure 4 It is a structural schematic diagram of the connecting pipe in the utility model.

[0019] Figure 5 It is a structural schematic diagram of the buckle in the utility model.

[0020] In the figure: 1. connecting pipe, 11. tubular section, 111. valve cavity, 112. annular groove, 12. connecting section, 121. arc-shaped notch, 122. engaging portion, 1221. plane, 1222. arc-shaped supporting surface, 12221. inner groove, 13. valve core, 131. spring, 132. valve block, 2. joint, 21. matching section, 211. ring, 212. step, 22. annular portion, 23. connecting portion, 3. buckle, 31. bump, 32. protrusion, 4. sealing ring. DETAILED DESCRIPTION

[0021] The present invention is now further described in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0022] like Figure 1 and Figure 2 As shown, a quick connector for a washing pipeline includes a connecting pipe 1 and a connector 2. The connecting pipe 1 is an integrated structure consisting of a tubular section 11 and a connecting section 12. The connector 2 is connected to one end of the tubular section 11. The interior of the tubular section 11 is hollow to form a valve cavity 111. A valve core 13 is arranged in the valve cavity 111. The valve core 13 includes a spring 131 and a valve block 132 connected to one end of the spring 131. A closing end is arranged at the connection between the tubular section 11 and the connecting section 12. The diameter of the closing end is smaller than the diameter of the valve block 132. An arc-shaped notch 121 is symmetrically provided on the peripheral wall of the connecting section 12. A clamping portion 122 is arranged on the connecting section 12 on both sides of the arc-shaped notch 121. A buckle 3 cooperating with the clamping portion 122 is arranged on the clamping portion 122. A sealing ring 4 is installed on the inner wall of the connecting section 12 close to the tubular section 11.

[0023] like Figure 1 and Figure 3 As shown, the connector 2 includes a matching section 21 extending into the tubular section 11, an annular section 22 covering the end of the tubular section 11, and a connector section 23 protruding from the annular section 22. A ring 211 is protruding from the outer wall of the matching section 21 (the connector 2 is a plastic product, and the ring 211 plays the role of a sealing ring), and the end of the connector section 23 is a frustum structure. An annular groove 112 is provided on the inner wall of the tubular section 11 to cooperate with the ring 211. A step 212 is provided on the inner wall of the matching section 21, and the other end of the spring 131 abuts against the step surface of the step 212.

[0024] like Figure 4 As shown, the engaging portion 122 includes a plane 1221 at the top and arc-shaped supporting surfaces 1222 at both sides of the plane 1221 , and inner grooves 12221 are provided at the upper and lower parts of the arc-shaped supporting surfaces 1222 .

[0025] like Figure 5 As shown, the buckle 3 is a door-shaped structure, and a protrusion 31 extending into the arc-shaped notch 121 is provided in the middle section of the inner wall of the buckle 3. The inner wall of the protrusion 31 is set as a curved surface structure, which can make the inner wall of the connecting section 12 at this location arc-shaped, without affecting the circulation of the washing liquid after the connection, and protrusions 32 cooperating with the inner groove 12221 of the locking part 122 are provided on both sides of the lower part of the protrusion 31.

[0026] During specific installation, the valve core 13 is installed into the tubular section 11, and the matching section 21 of the joint 2 extends into one end of the tubular section 11, and a tight fit is achieved with the annular groove 112 through the ring 211. At the same time, the annular portion 22 completely covers the end port of the tubular section 11, and the end of the joint portion 23 is connected to the pipeline. The frustum structure ensures the firmness of the connection; one end of the two-way valve is inserted into the connecting section 12, and the buckle 3 is pressed down so that the protrusion 31 extends into the arc-shaped notch 121, and the protrusion 32 is snapped into the inner groove 12221 to achieve connection and fixation, and the sealing ring 4 ensures the sealing effect at this location.

[0027] The above-mentioned implementation mode is only for illustrating the technical concept and features of the utility model, and its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A quick connector for a washing pipeline, characterized in that: It includes a connecting pipe and a joint. The connecting pipe is an integrated structure composed of a tubular section and a connecting section. The joint is connected to one end of the tubular section. The interior of the tubular section is hollow to form a valve cavity. A valve core is arranged in the valve cavity. An arc-shaped notch is symmetrically provided on the peripheral wall of the connecting section. A clamping part is arranged on the connecting section on both sides of the arc-shaped notch. The clamping part is provided with a buckle that cooperates with it. A sealing ring is installed on the inner wall of the connecting section close to the tubular section.

2. The quick connector for washing pipeline according to claim 1, characterized in that: The joint comprises a matching section extending into the tubular section, an annular portion covering the end of the tubular section and a joint portion protruding from the annular portion. A ring is protruding from the outer wall of the matching section, and the end of the joint portion is a frustum structure.

3. The quick connector for washing pipeline according to claim 2, characterized in that: The inner wall of the tubular section is provided with an annular groove matched with the ring.

4. The quick connector for washing pipeline according to claim 2, characterized in that: A step is arranged on the inner wall of the matching section, and the valve core comprises a spring and a valve block connected to one end of the spring, and the other end of the spring abuts against the step surface of the step.

5. The quick connector for washing pipeline according to claim 4, characterized in that: A closing opening is provided at the connection between the tubular section and the connecting section, and the diameter of the closing opening is smaller than the diameter of the valve block.

6. The quick connector for washing pipeline according to claim 1, characterized in that: The clamping portion comprises a plane located at the top and arc-shaped supporting surfaces located at both sides of the plane, and inner grooves are provided at the upper and lower parts of the arc-shaped supporting surfaces.

7. The quick connector for washing pipeline according to claim 6, characterized in that: The buckle is a door-shaped structure, the middle section of the inner wall of the buckle is provided with a convex block extending into the arc-shaped notch, and both sides of the lower part of the convex block are provided with protrusions matching with the inner groove of the locking part.

8. The quick connector for washing pipeline according to claim 7, characterized in that: The inner wall of the protrusion is configured as a curved surface structure.

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