A new type of washing pump filter screen assembly

Abstract

The utility model relates to the field of automobile parts design discloses a novel washing pump filter screen subassembly, including the filter piece suitable for installing in washing pump, the filter piece is installed in the water inlet hole of washing pump, the filter piece with water inlet hole fixed connection, the water outlet end of filter piece is equipped with filter screen, the filter screen lateral structure with the clearance that is equipped with in water inlet hole inner wall, and washing liquid flows into the washing pump from the filter screen outside end through the filter screen. The utility model adopts the way of pressing and directly press the filter piece into the washing pump, establishes the stable installation of washing pump to filter piece, and multiple limit control is arranged between washing pump and filter piece, even if the filter piece is influenced by washing liquid flow or power jet liquid and will not move or loosen, increase the clearance between filter screen and water inlet hole, improve washing liquid input fluency, reduce the surface area of filter screen, play the role of flow control, improve the practicality of filter screen.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and more specifically, to a novel wash pump filter assembly. Background Technology

[0002] Car washers are an indispensable component of automobiles. Their operation requires a washing motor to power the washing solution in the tank. The pump then transmits the power to the washing pipes, where it is sprayed onto the windshield through nozzles. A filter screen is needed in the pump's inlet pipe to prevent impurities from entering the pump chamber. Currently, the filter screen uses a hollow cylindrical injection-molded plastic structure without a fixed point within the pump body. This allows the filter screen to easily move within the pump's inlet pipe under the influence of water flow, resulting in poor filtration and noise caused by impacts with the inlet pipe. Installing the filter screen requires first securing it with clamps and manually aligning it with the pump's inlet pipe to meet standards before proceeding to the next step, ultrasonic welding. This process increases steps, reduces efficiency, and raises production costs and time. Therefore, a novel car wash pump filter screen assembly is proposed. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address at least one of the aforementioned problems, this utility model first provides a novel washing pump filter assembly that simplifies the assembly process, improves installation efficiency, and enhances the practicality of the filter element.

[0005] (II) Technical Solution

[0006] To solve the aforementioned technical problem, this utility model provides a novel washing pump filter assembly, including a filter element suitable for installation in a washing pump. The filter element has two sets of limiting protrusions on its side end, and a limiting groove is provided inside the water inlet of the washing pump. The limiting protrusions are adapted to be installed within the limiting groove. The filter element is installed inside the water inlet of the washing pump, and the filter element is fixedly connected to the water inlet. A filter screen is provided at the water outlet end of the filter element. A gap is provided between the lateral structure of the filter screen and the inner wall of the water inlet. Washing liquid flows from the outer end of the filter element through the filter screen into the washing pump.

[0007] Furthermore, the filter element includes a limiting frame, and the limiting frame is provided with a mounting bracket inside the water inlet. One end of the mounting bracket is provided with a positioning block, which is a right-angled trapezoidal structure. The outer end of the positioning block is provided with a guide groove suitable for connection with the washing pump. The limiting boss is provided on the outer wall of the mounting bracket located on both sides of the positioning block. The end of the mounting bracket away from the limiting frame is provided as a drain bracket, and the filter screen is disposed on the drain bracket.

[0008] Furthermore, the bottom panel of the guide slot is parallel to the top edge of the positioning block.

[0009] Furthermore, the limiting boss has a wedge-shaped cross-section parallel to the mounting bracket.

[0010] Furthermore, the filter screen includes a positive water outlet end face away from the drain rack, and a plurality of circumferential frames are provided parallel and equidistantly between the drain rack and the positive water outlet end face, and a plurality of axial supports are provided evenly at intervals on the inner side of the circumferential frames.

[0011] Furthermore, the center of the drain rack and the center of the positive water outlet face are on the same axis, and the radius of the positive water outlet face is smaller than the radius of the drain rack.

[0012] Furthermore, the axial support is inclined at 3-6 degrees toward the positive water outlet end face.

[0013] Furthermore, the gap between the axial support and the circumferential frame is provided as a side-mounted leakage hole, and a plurality of main leakage holes are uniformly provided on the positive water outlet end face.

[0014] Furthermore, an arc-shaped flow guide is provided at the connection between the washing pump and the water inlet, and a limiting guide post is provided at the position of the washing pump facing the guide slot.

[0015] (III) Beneficial Effects

[0016] This utility model provides a novel filter assembly for a washing pump. The filter element is directly pressed into the washing pump using a pressing method, establishing a stable installation of the filter element within the pump. Multiple limit controls are implemented between the pump and the filter element, preventing movement or loosening of the filter element even when affected by the flow of washing liquid or the spray. This eliminates noise caused by friction or impact, improving the user experience. Furthermore, the specific structure of the filter element is modified, increasing the gap between it and the inlet hole. This improves the smoothness of the washing liquid input while effectively reducing the surface area of ​​the filter element, thus reducing the filtration output and controlling the flow, thereby enhancing the filter's practicality. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the filter element in the installed state according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the filter element from one perspective according to an embodiment of the present utility model;

[0019] Figure 3 This is a structural schematic diagram of the filter element from another perspective according to an embodiment of the present utility model;

[0020] Figure 4This is a front view of the filter element according to an embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram showing the installation position of the washing pump according to an embodiment of the present utility model;

[0022] Figure 6 for Figure 5 A schematic diagram of the structure of part A in the middle.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1 is the filter element, 11 is the limiting frame, 12 is the positioning block, 13 is the guide groove, 14 is the mounting bracket, 15 is the limiting boss, 16 is the leakage bracket, 17 is the filter screen, 171 is the positive water outlet end face, 172 is the circumferential frame, 173 is the axial support, 18 is the side leakage hole, 19 is the main leakage hole, 110 is the reinforcing strip, 2 is the washing pump, 21 is the arc-shaped flow guide, 22 is the limiting guide post, 23 is the limiting groove, and 3 is the water outlet. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] See Figures 1 to 6 This utility model provides a novel washing pump filter assembly, including a filter element 1 suitable for installation in a washing pump 2. The filter element 1 has two sets of limiting protrusions 15 on its side end. The inlet of the washing pump 2 has a limiting groove 23, and the limiting protrusions 15 are suitable for installation in the limiting groove 23. The filter element 1 is installed in the inlet of the washing pump 2 and is fixedly connected to the inlet. The outlet end of the filter element 1 is provided with a filter screen 17. The lateral structure of the filter screen 17 has a gap with the inner wall of the inlet. The washing liquid flows into the washing pump 2 through the filter screen 17 at the outer end of the filter element 1. The washing liquid is pushed by power and hydraulic pressure and flows out from the outlet 3 set at the top of the washing pump 2. It is sprayed onto the car glass and used with a scraper to clean the windshield. During this process, any impurities that may be carried in the washing liquid are intercepted by the filter screen 17 within the filter element 1 and will not flow into the washing pump 2 and cause blockage.

[0027] The filter element 1 is fixedly installed in the water inlet hole. Its connection with the washing pump 2 is not affected by the flow of washing liquid and changes in hydraulic pressure, which ensures the installation stability of the filter element 1 and enables the filter element 1 to stably and repeatedly guide the washing liquid to the washing pump 2.

[0028] See Figure 2 and Figure 3The filter element 1 includes a limiting frame 11, with a mounting bracket 14 inside the water inlet. One end of the mounting bracket 14 has a positioning block 12, which is a right-angled trapezoidal structure. The outer end of the positioning block 12 has a guide groove 13 suitable for connection with the washing pump 2. A limiting boss 15 is located on the outer wall of the mounting bracket 14 on both sides of the positioning block 12. The end of the mounting bracket 14 away from the limiting frame 11 is a drain rack 16, and the filter screen 17 is mounted on the drain rack 16. When the filter element 1 is installed inside the water inlet, the guide groove 17 will be positioned to guide the filter screen 17. The card slot 13 is fitted onto the limiting guide post 22, and the entire filter element 1 is pressed into the water inlet hole. When the filter element 1 is in place, the limiting boss 15 will be inserted into the limiting groove 23, completing the installation of the filter element 1. At this time, the mounting bracket 14 abuts against the inner wall of the water inlet hole, and the limiting frame 11 abuts against the water inlet hole. The mounting bracket 14 establishes a connection with the filter screen 17 through the drain bracket 16. Due to the diameter and depth limitation of the drain bracket 16 itself, there is a certain distance between the filter screen 17 and the water inlet hole, so that the washing liquid can flow out from the side of the filter screen 17.

[0029] The positioning block 12 is set as a right trapezoidal structure, and its hypotenuse can fit the side contour of the filter screen 17. However, the filter element 1 and the washing pump 2 are straight wire structures. Therefore, the guide groove 13 is set as a connecting groove parallel to the right angle side of the positioning block 12, which facilitates the connection with the limiting guide post 22 and will not cause the filter element 1 to shift.

[0030] The bottom panel of the guide slot 13 is parallel to the top edge of the positioning block 12. That is, the guide slot 13 is set as a regular cuboid cavity, which is convenient to fit and connect with the limiting guide post 22 to realize the guiding and limiting functions of the two, and facilitates the direct pressing of the filter element 1 into the water inlet hole.

[0031] The limiting boss 15 has a wedge-shaped cross section parallel to the mounting bracket 14. That is, the limiting boss 15 extends obliquely from one end near the filter screen 17 to one end near the limiting frame 11 and forms a locking platform. When the limiting boss 15 is pressed into the limiting groove 23, the locking platform abuts against the edge of the limiting groove 23, and the limiting frame 11 is just locked against the edge of the water inlet hole, thus completing the installation of the filter element 1.

[0032] In the installed state, the filter element 1 is subject to multiple limiting effects, including the contact between the limiting frame 11 and the edge of the water inlet, the engagement between the limiting boss 15 and the limiting groove 23, and the sleeve connection between the guide groove 13 and the limiting guide post 22. Even if the filter element 1 is affected by the flow of washing liquid or the power injection, it will not move or loosen.

[0033] See Figures 2 to 4The filter screen 17 includes a positive water outlet end face 171 away from the drain rack 16. The drain rack 16 and the positive water outlet end face 171 are provided with a plurality of circumferential frames 172 at equal intervals. The inner side of the circumferential frames 172 is provided with a plurality of axial supports 173 evenly spaced. The filter screen 17 is designed as a frustum structure. The filter screen 17 is composed of the circumferential frames 172 and the axial supports 173 forming a support structure for the side of the frustum. The circumferential frames 172 and the axial supports 173 form a grid structure. Under the premise of ensuring the installation control of the positive water outlet end face 171, the side drain holes 18 formed by the grid form a side water outlet passage.

[0034] The center of the drain rack 16 and the center of the positive water outlet face 171 are on the same axis. The radius of the positive water outlet face 171 is smaller than the radius of the drain rack 16. The axial support 173 and the circumferential frame 172 are integrally formed. Compared with the existing cylindrical filter structure, the filter screen 17 is set as a frustum. Under the premise that the drain rack 16 has the same specifications, the area of ​​the frustum filter screen 17 is smaller than that of the cylindrical filter structure. This can save the production cost of the filter rack to a certain extent, and at the same time reduce the water outlet area of ​​the filter screen 17, save the washing liquid spraying, and help control the output.

[0035] The axial support 173 is tilted 3-6 degrees toward the positive water outlet end face 171. The filter structure with different water spray volume is set according to the washing needs of different vehicle models. If the water spray volume is large, the tilt of the axial support 173 is small, and if the water spray volume is small, the tilt of the axial support 173 is large.

[0036] The inner wall of each axial support 173 maintains the same tilt angle as its structure, and the entire filter element 1 is coated with a hydrophobic coating and an anti-stick coating, so that the filtered impurities can slide out along the inner wall of the axial support 173 and the mounting bracket 14, avoiding impurities from clogging the filter screen 17.

[0037] A reinforcing strip 110 is provided on the inner wall of the mounting bracket 14, directly opposite the positioning block 12. Both sides of the reinforcing strip 110 abut against a set of axial supports 173, forming an opposing distribution with the positioning block 12, for balancing the configuration of the filter element 1.

[0038] The gap between the axial support 173 and the circumferential frame 172 is set as a side leakage hole 18. Several main leakage holes 19 are evenly provided on the positive water outlet end face 171. The filter screen 17 can simultaneously discharge washing liquid through the side leakage hole 18 and the main leakage hole 19, thereby improving the filtration efficiency of the filter screen 17.

[0039] See Figure 5 and Figure 6An arc-shaped guide frame 21 is provided at the connection between the washing pump 2 and the water inlet. The arc-shaped guide frame 21 can gently guide the washing liquid into the guide channel of the washing pump 2. The washing pump 2 is provided with a limiting guide post 22 facing the guide slot 13, and the washing pump 2 is provided with a limiting groove 23 facing the limiting boss 15. By fitting the limiting guide post 22 into the guide slot 13, the washing pump 2 can easily push the filter element 1 directly into the washing pump 2 for assembly. After pushing to a certain extent, it will directly lock the limiting boss 15 into the limiting groove 23. Since the locking edge of the limiting boss 15 abuts against the limiting groove 23, the filter element 1 is directly pressed into the washing pump 2. There is no need for a complicated installation structure or manual welding, which can effectively save production steps and shorten production time.

[0040] This utility model provides a novel washing pump filter assembly, which uses a filter screen 17 with a small surface area as the filtration structure. By changing the gap between the filter screen 17 and the water inlet, the convenience of washing liquid flow is improved. The filter element 1 is installed firmly by the abutment of the limiting frame 11 with the edge of the water inlet, the snap-fit ​​of the limiting boss 15 with the limiting groove 23, and the sleeve of the guide groove 13 with the limiting guide post 22. It will not move during the flow of washing liquid and will not affect the use effect of the filter element 1. This device adopts a press-fit mode for assembly, eliminating the need for complicated installation procedures such as ultrasonic welding, effectively saving production costs.

[0041] Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. A novel filter assembly for a washing pump, characterized in that, Includes a filter element (1) suitable for installation in a washing pump (2). The filter element (1) has two sets of limiting bosses (15) on its side. The washing pump (2) has a limiting groove (23) in its water inlet. The limiting bosses (15) are suitable for installation in the limiting groove (23). The filter element (1) is installed in the water inlet of the washing pump (2). The filter element (1) is fixedly connected to the water inlet. The water outlet end of the filter element (1) is provided with a filter screen (17). The side structure of the filter screen (17) has a gap with the inner wall of the water inlet. The washing liquid flows from the outer end of the filter element (1) through the filter screen (17) into the washing pump (2).

2. The novel washing pump filter assembly according to claim 1, characterized in that, The filter element (1) includes a limiting frame (11), the limiting frame (11) is provided with a mounting bracket (14) in the water inlet hole, one end of the mounting bracket (14) is provided with a positioning block (12), the positioning block (12) is a right-angled trapezoidal structure, the outer end of the positioning block (12) is provided with a guide groove (13) suitable for connecting with the washing pump (2), the limiting boss (15) is provided on the outer wall of the mounting bracket (14) on both sides of the positioning block (12), the end of the mounting bracket (14) away from the limiting frame (11) is provided with a drain rack (16), and the filter screen (17) is provided on the drain rack (16).

3. A novel washing pump filter assembly according to claim 2, characterized in that, The bottom panel of the guide slot (13) is parallel to the top edge of the positioning block (12).

4. A novel washing pump filter assembly according to claim 2, characterized in that, The limiting boss (15) has a wedge-shaped cross section parallel to the mounting bracket (14).

5. A novel washing pump filter assembly according to claim 2, characterized in that, The filter screen (17) includes a positive water outlet end face (171) away from the drain rack (16). The drain rack (16) and the positive water outlet end face (171) are provided with a plurality of circumferential frame edges (172) at equal intervals. The inner side of the circumferential frame edges (172) is provided with a plurality of axial supports (173) at even intervals.

6. A novel washing pump filter assembly according to claim 5, characterized in that, The center of the drain rack (16) and the center of the positive water outlet end face (171) are on the same axis, and the radius of the positive water outlet end face (171) is smaller than the radius of the drain rack (16).

7. A novel washing pump filter assembly according to claim 5, characterized in that, The axial support (173) is inclined at 3-6 degrees toward the positive water outlet end face (171).

8. A novel washing pump filter assembly according to claim 5, characterized in that, The gap between the axial support (173) and the circumferential frame (172) is set as a side leakage hole (18), and a plurality of main leakage holes (19) are uniformly provided on the positive water outlet end face (171).

9. A novel washing pump filter assembly according to claim 2, characterized in that, An arc-shaped guide frame (21) is provided at the connection between the washing pump (2) and the water inlet, and a limiting guide post (22) is provided at the position of the washing pump (2) facing the guide slot (13).

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