Adjustable front cover structure of water pump

By designing an adjustable front cover structure for the water pump, and utilizing the tight assembly of the knob with the front cover body and the marking indicators, the problems of high cost or large flow deviation in the prior art are solved, enabling adjustment of multiple flow states, reducing costs and improving user experience.

CN223938327UActive Publication Date: 2026-02-24DONGGUAN HENGYUE INDAL
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Patent Information

Application Number
CN202520536439.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-02-24
Estimated Expiration
2035-03-26

AI Technical Summary

Technical Problem

Existing methods for regulating water pump flow are costly or have large flow deviations, making it difficult to achieve precise regulation without increasing costs, especially for large-sized water pumps.

Method used

Design an adjustable front cover structure for a water pump. The front cover body is tightly assembled with a knob, and 90° adjustment is achieved using ten adjustable gears. Combined with the water chamber threaded interface, the installation is ensured to be stable. The flow direction is indicated by markings. It is manufactured using suitable engineering plastic material and injection molding process.

Benefits of technology

It enables adjustment of various traffic states, reduces costs, minimizes traffic loss, improves product versatility and user experience, and is suitable for different usage scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of water pumps, in particular to an adjustable front cover structure of a water pump, a knob and a front cover main body are assembled together through a buckling position, and the front cover main body and the knob sleeve a water cavity of the water pump. Ten gears of adjusting teeth are arranged on the knob, so that 90-degree rotary adjustment can be realized, and the flow of the water pump can be controlled. The front cover body and the water pump body are connected through the water cavity thread connector, the length of the front cover body is optimized so as to reduce the influence on the original maximum flow of the water pump, meanwhile, the overall appearance proportion is considered, on one hand, the water pump of a single model can have multiple flow states, and the use requirements of different scenes are met; and equivalently, one water pump can replace several small-size water pumps with different flows, so that the universality of the product is improved. On the other hand, the cost is low, and the flow adjusting function can be achieved only by adding one knob. In addition, marks are arranged on the front cover and the knob, so that a user can conveniently distinguish the adjusting directions of the maximum flow and the minimum flow, and the use experience of the user is improved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to water pump technical field, concretely relates to a water pump adjustable front cover structure. BACKGROUND

[0002] In the field of water pump application, flow regulation is an important requirement. At present, there are mainly two ways for the existing water pump to realize flow regulation. One is to externally connect a flow control box. Although this method can control the flow more accurately, it has the problem of high cost, which increases the user's use cost and limits the product's promotion in the market which is more sensitive to cost. The other is to rely on the structure of the water pump itself for regulation, among which the regulation through the front cover is a potential method. However, the addition of the front cover on the basis of no front cover will reduce the flow, and the addition of the structure for controlling the flow in the front cover will further reduce the flow, resulting in a large deviation of the maximum adjustable flow from the maximum flow of the product itself. Moreover, this flow deviation problem is more obvious on large-sized water pumps. In the previous attempts to improve, there are many difficulties such as ensuring the flow regulation function, controlling the flow loss, and avoiding the proportion disorder of the appearance, which makes the practical application of this structure slow. CONTENT OF THE UTILITY MODEL

[0003] To solve the problems raised in the background technology, the utility model provides a water pump adjustable front cover structure, which enables the water pump structure itself to have the function of flow regulation, reduces the negative impact of the regulation structure on the flow of the water pump while reducing the cost, and meets the user's use demand for different flow.

[0004] Structure composition: the adjustable flow front cover is mainly composed of a front cover body and a knob. The front cover body cooperates with the water cavity, pump body and other components of the water pump, and the knob is installed on the front cover body.

[0005] Connection relationship and positional relationship: the knob is tightly assembled with the front cover body through the buckle, and the front cover body and the knob cover the entire water cavity. The front cover body and the pump body of the water pump are connected through the water cavity screw thread interface and other structures to ensure stable installation.

[0006] The flow is adjusted by rotating the knob. The knob has ten adjustment teeth and can realize 90° full opening or full closing adjustment. When the knob is in different gears, the size or shape of the water flow passage through the front cover is changed, thereby realizing the regulation of the flow of the water pump. Since the front cover and the knob cover the entire water cavity, this structure effectively reduces the loss of the flow of different types of water pumps caused by the knob structure. When designing the front cover, the length of the front cover is appropriately increased to improve the impact of the addition of the knob on the original maximum flow, but the overall appearance proportion should also be considered.

[0007] Compared with the prior art, the utility model has the beneficial effects that:

[0008] This invention offers significant advantages. Firstly, it enables a single water pump model to operate in multiple flow rates, meeting the needs of various scenarios. Essentially, one pump can replace several smaller models with different flow rates, improving product versatility. Secondly, it is cost-effective, requiring only a single knob for flow rate adjustment. Furthermore, markings on the front cover and knob facilitate user identification of the maximum and minimum flow rate adjustment directions, enhancing the user experience. Attached Figure Description

[0009] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a schematic cross-sectional view of the main body of the front cover of this utility model;

[0012] Figure 3 This is a schematic diagram of the maximum flow rate state structure of this utility model;

[0013] Figure 4 This is a schematic diagram of the minimum flow state structure of this utility model;

[0014] In the picture:

[0015] 1. Front cover body; 2. Knob; 3. Fastener; 4. Water pump; 5. Ten-speed adjustment gear; 6. Water chamber threaded interface; 7. Water chamber. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1

[0018] like Figures 1-4 As shown;

[0019] An adjustable front cover structure for a water pump includes a front cover body and a knob.

[0020] This implementation plan addresses the technical problems existing in the prior art, as disclosed in the background section above: "Currently, there are two main ways to achieve flow regulation in existing water pumps. One is through an external flow control box. While this method can control the flow relatively accurately, it suffers from high costs, increasing user operating costs and limiting the product's promotion in cost-sensitive markets. The other method relies on the pump's own structure for regulation, with adjustment via a front cover being a potential approach. However, adding a front cover without one reduces the flow rate, and adding a flow control structure inside the front cover further reduces the flow rate, resulting in a significant deviation between the adjustable maximum flow rate and the product's maximum flow rate. Moreover, this flow deviation problem is more pronounced in larger water pumps. Previous attempts to improve this system faced numerous challenges, such as ensuring the flow regulation function while controlling flow loss and avoiding disproportionate appearance, which slowed down the practical application of this structure." In practical terms, this problem is clearly real and difficult to solve. Therefore, to address this technical problem, an adjustable front cover structure for the water pump is provided.

[0021] like Figures 1-4 As shown in the figure;

[0022] Based on the above, the knob is assembled with the front cover body via a snap fastener, and the front cover body and the knob cover the water chamber of the water pump.

[0023] The knob has ten adjustable gears, allowing for 90° rotation adjustment to control the water pump flow.

[0024] The front cover body is connected to the water pump body through a water chamber threaded interface, and the length of the front cover body has been optimized to reduce the impact on the original maximum flow rate of the water pump, while taking into account the overall appearance proportions.

[0025] The front cover and knobs are marked with indicators to show the direction of adjustment for maximum and minimum flow rates.

[0026] An adjustable flow front cover is installed on the water pump, enabling the pump to have a flow regulation function, and effectively reducing the loss of water pump flow during the regulation process.

[0027] Manufacturing: During production, the front cover body and knobs are made of suitable engineering plastics and manufactured using injection molding. When designing the injection mold, precise dimensional parameters such as the length of the front cover body, the shape of the knob's adjustment teeth, and the snap-fit ​​structure are set to ensure product accuracy. Markings on the front cover body and knobs are created using methods such as screen printing or in-mold injection molding to ensure clear and durable labeling.

[0028] Installation and Use: During installation, connect the front cover body to the water pump body via the water chamber threaded interface, ensuring a secure installation. Then, assemble the knob to the front cover body using the snap-fit ​​mechanism and rotate the knob to its initial position. When using the pump, rotate the knob according to your actual needs. For example, when a high flow rate is required, rotate the knob to the position corresponding to the maximum flow rate indicator; when a low flow rate is required, rotate the knob towards the minimum flow rate indicator, selecting the appropriate setting according to the scale. During adjustment, carefully observe the pump's operating status to avoid over-adjustment. Also, since the fully closed position is not absolutely shut off, there is no need to worry about the pump running dry during use.

[0029] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustable front cover structure for a water pump, characterized in that, The adjustable flow front cover consists of a front cover body (1) and a knob (2). The knob (2) is assembled with the front cover body (1) by a fastener (3). The front cover body (1) and the knob (2) cover the water chamber (7) of the water pump (4). The knob (2) is provided with ten adjustment teeth (5) to achieve 90° rotation adjustment, which is used to control the flow of the water pump (4).

2. The adjustable front cover structure for a water pump according to claim 1, characterized in that, The front cover body (1) is connected to the water pump (4) through the water cavity thread interface (6), and the length of the front cover body (1) has been optimized to reduce the impact on the original maximum flow rate of the water pump (4) while taking into account the overall appearance proportions.

3. The adjustable front cover structure for a water pump according to claim 1, characterized in that, The front cover body (1) and the knob (2) are marked with labels to indicate the adjustment direction of the maximum flow rate and the minimum flow rate.

4. The adjustable front cover structure for a water pump according to any one of claims 1-3, characterized in that, The adjustable flow front cover is installed on the water pump (4), enabling the water pump (4) to have a flow regulation function, and effectively reducing the loss of the water pump (4) flow during the regulation process.