Small water pump sealing cover
By designing a water pump cover that includes a support plate and fastening components, the problems of damage to the water pump and cumbersome maintenance during the installation of existing small water pump covers are solved, achieving stable installation and convenient disassembly.
Patent Information
- Application Number
- CN202520605249.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-04-02
AI Technical Summary
Existing small water pump covers are prone to damaging the water pump during installation and subsequent inspection and maintenance are cumbersome.
A water pump cover including a cover assembly and a fixing assembly is designed. The fixing assembly consists of a support plate, a limiting block, an adjusting groove, a positioning block, a fastening screw, and a fastening pressure plate. The support plate supports the water pump in the mounting hole and, in conjunction with the use of the fastening cover and the fastening screw, achieves stable installation and convenient disassembly.
This method enables stable installation of the pump cover, avoids damage to the pump from mechanical pressure, and simplifies the disassembly and maintenance process.
Smart Images

Figure CN223794310U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water pump technology, specifically a small water pump cover. Background Technology
[0002] A water pump is a machine that transports or pressurizes liquids. It transfers the mechanical energy of a prime mover or other external energy to the liquid, increasing the liquid's energy. It is mainly used to transport liquids including water, oil, acid and alkali solutions, emulsions, suspensions, and liquid metals, and can also transport liquids, mixtures of liquids, and liquids containing suspended solids.
[0003] The existing caps for small water pumps are usually installed on the pump using mechanical pressure through special installation equipment. However, this method may cause some damage to the pump during installation and is relatively cumbersome for subsequent inspection and maintenance. Therefore, we have proposed a new type of cap for small water pumps. Utility Model Content
[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.
[0005] Therefore, the technical solution adopted by this utility model is as follows:
[0006] A small water pump cover includes: a cover assembly and a fixing assembly disposed on the cover assembly. The cover assembly includes a cover plate, a limiting groove formed in the middle of the cover plate, a guide groove formed on the side of the limiting groove, a connecting cylinder disposed on the outside of the limiting groove, and a fastening cap connected to the connecting cylinder. The fixing assembly includes a support plate fitted into the limiting groove, a limiting block fixed in the middle of the support plate and located in the guide groove, an adjustment groove formed on the outside of the support plate, a positioning block adjustablely disposed in the adjustment groove, a positioning groove formed in the middle of the positioning block, a pad block filled in the positioning groove, a fastening screw threaded to the middle of the fastening cap, and a fastening pressure plate connected to the inner end of the fastening screw.
[0007] In a preferred embodiment, the present invention can be further configured such that a gasket is provided at the bottom of the cover plate.
[0008] In a preferred embodiment, the present invention can be further configured such that a sealing gasket located above the connecting cylinder is fixed to the inner side of the fastening cover.
[0009] In a preferred embodiment, the present invention can be further configured such that: a screw hole is provided on the support plate, an adjusting screw is threaded into the screw hole, and the end of the adjusting screw is connected to a connector fixed on the positioning block.
[0010] In a preferred embodiment, the present invention can be further configured such that the pad has a slot.
[0011] In a preferred embodiment, the present invention can be further configured such that a sealing ring is fixed to the side of the fastening plate.
[0012] In a preferred embodiment, the present invention can be further configured such that the supporting plate is a symmetrically arranged plate structure, and the inner side of the supporting plate is inclined.
[0013] The above-mentioned technical solution of this utility model has the following beneficial technical effects:
[0014] 1. This utility model uses a fixing component to support and fix the cover to the inside of the water pump mounting hole using the pads on the support plate. Then, the fastening cover is screwed onto the connecting cylinder, and the fastening screw is tightened at the same time, causing the fastening pressure plate to expand outward, thereby improving the stability of the connection with the water pump mounting hole. This achieves the installation of the cover. The cover is simple and convenient to install and remove, and can be freely adjusted according to the size of the mounting hole, greatly facilitating subsequent maintenance.
[0015] 2. This utility model uses a fixing component to adjust the position of the positioning block in the adjustment groove by turning the adjusting screw, which makes it easier to align the positioning block with the edge of the mounting hole. It is suitable for more types of mounting hole positions and has high practicality. Attached Figure Description
[0016] Figure 1 This is a cross-sectional view of the small water pump cover of this utility model;
[0017] Figure 2 This is an enlarged view of section A of the small water pump cover of this utility model.
[0018] Figure label:
[0019] 100. Cover assembly; 110. Cover plate; 111. Gasket; 120. Limiting groove; 130. Guide groove; 140. Connecting cylinder; 150. Fastening cover; 151. Sealing gasket;
[0020] 200. Fixing component; 210. Support plate; 211. Screw hole; 212. Adjusting screw; 213. Connector; 220. Limiting block; 230. Adjusting groove; 240. Positioning block; 250. Positioning groove; 260. Pad; 261. Slot; 270. Fastening screw; 280. Fastening pressure plate; 281. Sealing ring. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.
[0022] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.
[0023] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a small water pump cover.
[0024] Combination Figure 1-2 As shown, the present invention provides a small water pump cover, characterized in that it includes: a cover assembly 100 and a fixing assembly 200 disposed on the cover assembly 100. The cover assembly 100 includes a cover plate 110, a limiting groove 120 opened in the middle of the cover plate 110, a guide groove 130 opened on the side of the limiting groove 120, a connecting cylinder 140 disposed on the outside of the limiting groove 120, and a fastening cap 150 connected to the connecting cylinder 140.
[0025] Specifically, the positioning groove 120 allows the support plate 210 to be adjusted within it to fit water pump mounting holes of different diameters. The guide groove 130 provides a positioning effect, ensuring the stability of the support plate 210. The fastening cover 150 can be screwed onto the connecting cylinder 140 to seal the cover plate 110. Compared with mechanical pressure sealing, this method does not damage the water pump body and is more convenient to install and remove.
[0026] Furthermore, a gasket 111 is provided at the bottom of the cover plate 110, which can improve the sealing and stability between the cover plate 110 and the water pump.
[0027] The fixing assembly 200 includes a support plate 210 fitted into the limiting groove 120, a limiting block 220 fixed in the middle of the support plate 210 and located in the guide groove 130, an adjustment groove 230 opened on the outside of the support plate 210, a positioning block 240 adjustablely disposed in the adjustment groove 230, a positioning groove 250 opened in the middle of the positioning block 240, a pad 260 filled in the positioning groove 250, a fastening screw 270 threadedly connected to the middle of the fastening cover 150, and a connecting... The fastening plate 280 at the inner end of the fastening screw 270 is supported and fixed to the inner side of the water pump mounting hole by the fixing component 200 using the pad 260 on the support plate 210. Then, the fastening cover 150 is screwed onto the connecting cylinder 140, and the fastening screw 270 is tightened at the same time, causing the fastening plate 280 to expand outward, thereby improving the stability of the connection with the water pump mounting hole. This achieves the installation of the cover. The cover is simple and convenient to install and remove, and can be freely adjusted according to the size of the mounting hole, which greatly facilitates subsequent maintenance.
[0028] Specifically, a sealing gasket 151 located above the connecting cylinder 140 is fixed to the inner side of the fastening cover 150, which can improve the sealing between the connecting cylinder 140 and the fastening cover 150 and prevent leakage.
[0029] Furthermore, the support plate 210 is provided with a screw hole 211, and an adjusting screw 212 is internally threaded into the screw hole 211. The end of the adjusting screw 212 is connected to a connector 213 fixed on the positioning block 240. The position of the positioning block 240 in the adjusting groove 230 can be adjusted by turning the adjusting screw 212, so that the positioning block 240 can be more easily aligned with the edge of the mounting hole. This makes it suitable for more types of mounting hole positions and has high practicality.
[0030] On the other hand, the pad 260 has a slot 261, which can play a preliminary positioning role on the side of the water pump mounting hole, making it convenient for subsequent installation.
[0031] Furthermore, a sealing ring 281 is fixed to the side of the fastening plate 280. The sealing ring 281 can improve the stability between the support plate 210 and the fastening plate 280, thereby ensuring the stability of the support plate 210 at the water pump mounting hole.
[0032] It should be noted that the support plate 210 is a symmetrically arranged plate structure, and the inner side of the support plate 210 is inclined. The support plate 210 can be fixed from the inside to the outside in the water pump mounting hole. The inclined design of the inner side of the support plate 210 can make the support plate 210 fixed in the water pump mounting hole when the fastening plate 280 is pressed down. The design is quite reasonable.
[0033] The working principle and usage process of this utility model are as follows: First, place the cover plate 110 on the water pump mounting hole. Then, rotate the adjusting screw 212 to adjust the position of the positioning block 240 in the adjusting groove 230 so that the pad 260 is located inside the edge of the water pump mounting hole. Then, screw the fastening cover 150 onto the connecting cylinder 140. During the tightening process, the fastening pressure plate 280 is supported between the support plates 210. As the fastening pressure plate 280 moves down, it pushes the outside of the support plate 210 to improve the stability between the support plate 210 and the water pump mounting hole. Finally, tighten the fastening screw 270 appropriately to further increase the thrust on the support plate 210.
[0034] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A small water pump cover, characterized in that, include: A capping assembly (100) and a fixing assembly (200) disposed on the capping assembly (100). The capping assembly (100) includes a cover plate (110), a limiting groove (120) opened in the middle of the cover plate (110), a guide groove (130) opened on the side of the limiting groove (120), a connecting cylinder (140) disposed on the outside of the limiting groove (120), and a fastening cap (150) connected to the connecting cylinder (140). The fixing assembly (200) includes a support plate (210) fitted into the limiting groove (120), a limiting block (220) fixed in the middle of the support plate (210) and located in the guide groove (130), an adjustment groove (230) opened on the outside of the support plate (210), a positioning block (240) adjustablely set in the adjustment groove (230), a positioning groove (250) opened in the middle of the positioning block (240), a pad (260) filled in the positioning groove (250), a fastening screw (270) threaded to the middle of the fastening cover (150), and a fastening pressure plate (280) connected to the inner end of the fastening screw (270).
2. The small water pump cover according to claim 1, characterized in that, The bottom of the cover plate (110) is provided with a gasket (111).
3. A small water pump cover according to claim 1, characterized in that, The inner side of the fastening cover (150) is fixed with a sealing gasket (151) located above the connecting cylinder (140).
4. A small water pump cover according to claim 1, characterized in that, The support plate (210) has a screw hole (211), and an adjusting screw (212) is threaded into the screw hole (211). The end of the adjusting screw (212) is connected to a connector (213) fixed on the positioning block (240).
5. A small water pump cover according to claim 1, characterized in that, The pad (260) has a groove (261).
6. A small water pump cover according to claim 1, characterized in that, A sealing ring (281) is fixed to the side of the fastening plate (280).
7. A small water pump cover according to claim 1, characterized in that, The support plate (210) is a symmetrically arranged plate structure, and the inner surface of the support plate (210) is inclined.