High-light-strength water pump hub
By designing a protective cap structure with an annular groove and threaded connection on the water pump hub, the problems of bolt corrosion and weight were solved, achieving the effects of lightweighting and efficient heat dissipation.
Patent Information
- Application Number
- CN202520478976.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-17
AI Technical Summary
The bolts on the existing car water pump hubs are prone to corrosion and are quite heavy, which affects disassembly and heat dissipation.
A first annular array of slots and bolt holes are made on the water pump hub body, and a protective cap is connected to the threaded ring groove to increase the sealing flange to protect the bolts. The second slot on the hub flange is combined to reduce weight and improve heat dissipation.
The weight of the water pump hub has been reduced, heat dissipation has been improved, bolt corrosion has been prevented, and subsequent disassembly is easier.
Smart Images

Figure CN223739588U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water pump hub technology, specifically to a high-strength, lightweight water pump hub. Background Technology
[0002] The water pump hub is an important component of a car water pump, mainly used to transmit power from the engine to the water pump, thereby driving the water pump to work. It is usually made of metal or plastic and has raised gears or belt grooves for contact with belts or chains. Since the water pump normally rotates at high speeds, a high-strength hub is required. Common metal water pump hubs, such as aluminum alloy car water pump hubs, are the most common. Aluminum alloy has high strength, lightweight and corrosion resistance, which can effectively reduce the weight of the water pump.
[0003] Since the water pump hub and the water pump are mostly fixedly connected by welding or bolts, the bolts are easily exposed to the outside environment and are prone to corrosion when they are connected by fasteners such as bolts, which makes it difficult to disassemble the bolts later.
[0004] In summary, there is a current need for a high-strength, lightweight water pump hub. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a high-strength, lightweight water pump hub, which solves the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A high-strength, lightweight water pump hub includes a water pump hub body. A first opening groove and a bolt hole are provided on the side of the water pump hub body. A threaded annular groove is provided on the front side of the water pump hub body. The threaded annular groove is located outside the bolt hole. The threaded annular groove is threadedly connected to the outer ring of a protective cap. A sealing flange is fixedly connected to the outer ring of the protective cap. The sealing flange is located on the front side of the thread of the outer ring of the protective cap.
[0008] Furthermore, the first opening slots are arranged in a ring-shaped array on the side of the water pump hub body.
[0009] Furthermore, the bolt holes are arranged in a ring array on the side of the water pump hub body, and the bolt holes, threaded grooves and protective caps are in a one-to-one correspondence.
[0010] Furthermore, the protective cap and the sealing edge are in a one-to-one correspondence, and a seal is provided at the contact point between the sealing edge and the water pump hub body.
[0011] Furthermore, the water pump hub body includes hub flanges, and two hub flanges are fixedly connected to the outer ring of the water pump hub body, with a second opening groove formed on the hub flanges.
[0012] Furthermore, the second opening groove is distributed in a ring array on the hub flange.
[0013] This invention provides a high-strength, lightweight water pump hub. Compared with the prior art, it has the following advantages:
[0014] Firstly, a first opening groove is made on the water pump hub body. This first opening groove not only reduces the weight of the water pump hub body but also increases its heat dissipation area, improving the heat dissipation effect during the rotation of the water pump hub body. At the same time, a second opening groove is made on the hub flange to reduce its weight and improve heat dissipation. In addition, when the water pump hub body is connected and fixed to the water pump by external bolts passing through bolt holes, a protective cap is threaded into the threaded ring groove to protect the bolt removal part and reduce the long-term exposure of the bolt removal part to the outside, which may cause corrosion. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This diagram shows a front view of the main body of the water pump hub of this utility model;
[0017] Figure 2 This diagram shows a side view of the main body of the water pump hub of this utility model.
[0018] Figure 3 This diagram shows a schematic cross-sectional view of the left side of the water pump hub body of this utility model.
[0019] Figure 4 This diagram shows a schematic cross-sectional view of the left side of the protective cap of this utility model.
[0020] Figure 5 This diagram shows a front view of the protective cap and sealing edge of the present invention.
[0021] The figure shows: 1. Water pump hub body; 101. Hub flange; 102. Second opening groove; 2. First opening groove; 3. Bolt hole; 4. Threaded ring groove; 5. Protective cap; 6. Sealing flange. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] Example 1
[0024] To address the technical problems in the background section, the following high-strength, lightweight water pump hub is provided:
[0025] Combination Figures 1-5 As shown, the present invention provides a high-strength, lightweight water pump hub, including a water pump hub body 1. The side of the water pump hub body 1 is provided with a first opening groove 2 and a bolt hole 3. The front side of the water pump hub body 1 is provided with a threaded annular groove 4, which is located outside the bolt hole 3. The threaded annular groove 4 is threadedly connected to the outer ring of the protective cap 5. The outer ring of the protective cap 5 is fixedly connected with a sealing flange 6, which is located on the front side of the thread of the outer ring of the protective cap 5.
[0026] In this embodiment, the first opening slot 2 is arranged in a ring array on the side of the water pump hub body 1.
[0027] The first opening slot 2 not only reduces the weight of the water pump hub body 1, but also increases its heat dissipation area.
[0028] Example 2
[0029] like Figures 1-5 As shown, based on the above embodiments, this embodiment further provides the following:
[0030] In this embodiment, the bolt holes 3 are arranged in a ring array on the side of the water pump hub body 1. The bolt holes 3, threaded annular grooves 4 and protective caps 5 are in a one-to-one correspondence. The protective caps 5 and sealing flanges 6 are in a one-to-one correspondence. A seal is provided at the contact point between the sealing flanges 6 and the water pump hub body 1.
[0031] The seal provided at the contact point between the sealing flange 6 and the water pump hub body 1 enhances the contact sealing performance, and the protective cap 5 protects the bolt removal part.
[0032] Example 3
[0033] like Figures 1-5 As shown, based on the above embodiments, this embodiment further provides the following:
[0034] In this embodiment, the water pump hub body 1 includes a hub flange 101. Two hub flanges 101 are fixedly connected to the outer ring of the water pump hub body 1. A second opening groove 102 is opened on the hub flange 101. The second opening groove 102 is distributed in a ring array on the hub flange 101.
[0035] The weight is reduced and the heat dissipation is improved by the second opening groove 102 opened on the hub flange 101.
[0036] Working principle and usage process of this utility model:
[0037] In use:
[0038] Step 1: When the water pump hub body 1 is connected and fixed to the water pump through the bolt holes 3 by external bolt fasteners, the protective cap 5 is threaded into the threaded ring groove 4 to protect the bolt removal part and reduce the long-term exposure of the bolt removal part to the outside and corrosion. The first opening groove 2 is opened on the water pump hub body 1, which not only reduces the weight of the water pump hub body 1, but also increases its heat dissipation area. At the same time, the second opening groove 102 opened on the hub flange 101 reduces its weight and improves heat dissipation.
[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0040] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A high light weight pump wheel hub characterized by: The utility model provides a water pump wheel hub body, the side of water pump wheel hub body (1) is equipped with first open slot (2) and bolt hole (3), the front side of water pump wheel hub body (1) is equipped with thread ring groove (4), thread ring groove (4) is arranged in the outside of bolt hole (3), thread ring groove (4) and the outer ring of protective cap (5) are threadedly connected, the outer ring of protective cap (5) is fixedly connected with sealing baffle (6), sealing baffle (6) is arranged in the front side of protective cap (5) outer ring thread.
2. A high light weight pump hub as claimed in claim 1, wherein: The first open slot (2) is arranged in a ring array on the side of the water pump wheel hub body (1).
3. A high light weight pump hub as claimed in claim 1, wherein: The bolt hole (3) is arranged in a ring array on the side of the water pump wheel hub body (1), and the bolt hole (3), the thread ring groove (4) and the protective cap (5) are in one-to-one correspondence.
4. A high light weight pump hub as claimed in claim 1, wherein: The protective cap (5) and the sealing baffle (6) are in one-to-one correspondence, and a seal is arranged between the sealing baffle (6) and the water pump wheel hub body (1).
5. A high light weight pump hub as claimed in claim 1, wherein: The water pump wheel hub body (1) comprises a hub baffle (101), and the outer ring of the water pump wheel hub body (1) is fixedly connected with two hub baffles (101), and a second open slot (102) is arranged on the hub baffle (101).
6. A high light weight pump wheel hub as claimed in claim 5, wherein: The second open slot (102) is arranged in a ring array on the hub baffle (101).