Water pump assembly, engine and motorcycle

Abstract

The utility model discloses a water pump assembly, an engine and a motorcycle, and the water pump assembly comprises a base with a water outlet formed in one side; the top cover and the base are connected into a whole through first bolts, the top cover and the base jointly define a water cavity, the water cavity is communicated with the water outlet, the top cover is provided with a water inlet pipe and a bypass pipe, the water inlet pipe and the bypass pipe are both communicated with the water cavity, and second bolts are arranged on the top cover and the base in a penetrating mode and used for being fixedly connected with an engine; and the pump shaft is rotationally arranged on the base and provided with an impeller, and the impeller is arranged in the water cavity. The base and the top cover are connected into a whole through the first bolts, then the water pump assembly and the engine are fixedly connected through the second bolts, the water pump assembly is always a whole when the water pump assembly and the engine are disassembled and assembled, the stability of the water pump assembly is guaranteed, meanwhile, the disassembling and assembling process can be simplified, the labor intensity is reduced, and the working efficiency is improved. The working efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of motorcycle engines, and in particular to a water pump assembly, an engine and a motorcycle. Background Art

[0002] As an important part of the motorcycle engine, the cooling system has a significant impact on whether the motorcycle can be used normally. The water pump is the power source of the coolant in the engine cooling system. In order to ensure the smooth flow of the coolant when the engine is working, there are high requirements for the flow performance and sealing performance of the water pump.

[0003] However, in the existing water pump, the fixing bolts used to connect the top cover and the base are also used to connect the water pump assembly and the engine, resulting in the top cover and the base being separated from each other when the water pump and the engine are disassembled, making disassembly and assembly troublesome and affecting the stability of the water pump. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a water pump assembly, which not only ensures the stability of the water pump assembly, but also simplifies the disassembly and assembly process, reduces labor intensity, and improves work efficiency.

[0005] The present application also proposes an engine that can simplify the disassembly and assembly process, reduce labor intensity, improve work efficiency, enhance the cooling effect of the engine, and improve the stability of engine operation.

[0006] The present application also proposes a motorcycle, which can simplify the disassembly and assembly process, reduce labor intensity, improve work efficiency, enhance the cooling effect of the engine, and improve the stability of engine operation.

[0007] The water pump assembly described in the embodiment of the first aspect of the present application includes: a base, one side of which is provided with a water outlet; a top cover, which is connected to the base as a whole by a first bolt, the top cover and the base jointly define a water cavity, the water cavity is connected to the water outlet, the top cover is provided with a water inlet pipe and a bypass pipe, the water inlet pipe and the bypass pipe are both connected to the water cavity, the top cover and the base are also penetrated by a second bolt, the second bolt is used to be fixedly connected to the engine; a pump shaft, rotatably arranged on the base, the pump shaft is provided with an impeller, and the impeller is arranged in the water cavity.

[0008] The water pump assembly described in the embodiment of the first aspect of the present application has at least the following beneficial effects: by using a first bolt to first connect the base and the top cover into one body, and then using a second bolt to fix the water pump assembly to the engine, when the water pump assembly and the engine are disassembled and assembled, the water pump assembly is always a whole, which not only ensures the stability of the water pump assembly, but also simplifies the disassembly and assembly process, reduces labor intensity, and improves work efficiency; by arranging a bypass pipe connected to the water cavity on the top cover, when the engine is started at low temperature, the coolant is controlled by the thermostat to enter the water cavity from the bypass pipe and then be pumped into the engine, so as to perform small-circulation cooling without passing through the radiator, so that the engine can quickly heat up to the optimal operating temperature, thereby improving the smoothness of engine operation.

[0009] According to the water pump assembly described in the embodiment of the first aspect of the present application, the base is provided with a first fixing hole, the top cover is provided with a second fixing hole, and the second bolt is passed through the first fixing hole and the second fixing hole.

[0010] According to the water pump assembly described in the embodiment of the first aspect of the present application, the base is provided with a connecting surface, the first fixing hole is provided on the connecting surface, the connecting surface abuts against the engine, and the water outlet is provided on the connecting surface.

[0011] According to the water pump assembly described in the embodiment of the first aspect of the present application, a sealing ring is provided between the base and the top cover.

[0012] According to the water pump assembly described in the embodiment of the first aspect of the present application, the base is provided with an axial hole, a bearing is provided in the axial hole, the pump shaft passes through the bearing, and an oil seal is provided on a side of the bearing close to the water chamber.

[0013] According to the water pump assembly described in the embodiment of the first aspect of the present application, the bearings are arranged in two, and a sleeve is arranged between the two bearings.

[0014] According to the water pump assembly described in the embodiment of the first aspect of the present application, the pump shaft is provided with a water seal, and the water seal is provided between the impeller and the base.

[0015] According to the water pump assembly described in the embodiment of the first aspect of the present application, an overflow chamber is formed between the oil seal and the water seal, and the base is provided with an overflow pipe, and the overflow pipe is connected to the overflow chamber.

[0016] The engine according to the embodiment of the second aspect of the present application includes the water pump assembly described in the embodiment of the first aspect of the present application.

[0017] The engine according to the embodiment of the second aspect of the present application has at least the following beneficial effects: the water pump assembly described in the embodiment of the first aspect of the present application is applied to the engine, the base and the top cover are first connected into one body by a first bolt, and then the water pump assembly is fixedly connected to the engine by a second bolt. When the water pump assembly and the engine are disassembled and assembled, the water pump assembly is always a whole, which not only ensures the stability of the water pump assembly, but also simplifies the disassembly and assembly process, reduces labor intensity, and improves work efficiency; by arranging a bypass pipe connected to the water cavity on the top cover, when the engine is started at low temperature, the coolant is controlled by the thermostat to enter the water cavity from the bypass pipe and then pumped into the engine, so as to perform small-circulation cooling without passing through the radiator, so that the engine can quickly heat up to the optimal operating temperature, thereby improving the smoothness of engine operation.

[0018] The motorcycle according to the embodiment of the third aspect of the present application comprises the engine described in the embodiment of the second aspect of the present application.

[0019] The motorcycle according to the embodiment of the third aspect of the present application has at least the following beneficial effects: the engine described in the embodiment of the second aspect of the present application is applied to the motorcycle, the base and the top cover are first connected into one body by a first bolt, and then the water pump assembly is fixedly connected to the engine by a second bolt. When the water pump assembly and the engine are disassembled and assembled, the water pump assembly is always a whole, which not only ensures the stability of the water pump assembly, but also simplifies the disassembly and assembly process, reduces labor intensity, and improves work efficiency; by arranging a bypass pipe connected to the water cavity on the top cover, when the engine is started at low temperature, the coolant is controlled by the thermostat to enter the water cavity from the bypass pipe and then pumped into the engine, so as to perform small-circulation cooling without passing through the radiator, so that the engine can quickly heat up to the optimal operating temperature, thereby improving the smoothness of engine operation.

[0020] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 A schematic structural diagram of a water pump assembly according to an embodiment of the first aspect of the present application;

[0023] Figure 2 An exploded view of a water pump assembly according to an embodiment of the first aspect of the present application;

[0024] Figure 3 A first cross-sectional view of a water pump assembly according to an embodiment of the first aspect of the present application;

[0025] Figure 4 This is a second cross-sectional view of the water pump assembly of the first embodiment of the present application.

[0026] Description of reference numerals:

[0027] Base 100; water outlet 110; first fixing hole 120; connecting surface 130; axial hole 140; overflow chamber 150; overflow pipe 160; top cover 200; water chamber 210; water inlet pipe 220; bypass pipe 230; second fixing hole 240; sealing ring 250; first bolt 310; second bolt 320; pump shaft 400; impeller 410; bearing 420; oil seal 430; sleeve 440; water seal 450. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0029] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0032] Reference Figures 1 to 4The first embodiment of the present application provides a water pump assembly, including: a base 100, one side of which is provided with a water outlet 110; a top cover 200, which is connected to the base 100 as a whole by a first bolt 310, the top cover 200 and the base 100 jointly define a water cavity 210, the water cavity 210 is connected to the water outlet 110, the top cover 200 is provided with a water inlet pipe 220 and a bypass pipe 230, the water inlet pipe 220 and the bypass pipe 230 are both connected to the water cavity 210, the top cover 200 and the base 100 are also penetrated by a second bolt 320, the second bolt 320 is used to be fixedly connected to the engine; a pump shaft 400, which is rotatably arranged on the base 100, and the pump shaft 400 is provided with an impeller 410, and the impeller 410 is arranged in the water cavity 210.

[0033] By using the first bolt 310 to first connect the base 100 and the top cover 200 into one body, and then using the second bolt 320 to fix the water pump assembly to the engine, when the water pump assembly and the engine are disassembled and assembled, the water pump assembly is always a whole, which not only ensures the stability of the water pump assembly, but also simplifies the disassembly and assembly process, reduces labor intensity, and improves work efficiency; by providing a bypass pipe 230 connected to the water cavity 210 on the top cover 200, when the engine is started at low temperature, the coolant is controlled by the thermostat to enter the water cavity 210 from the bypass pipe 230 and then pumped into the engine, so as to perform small-circulation cooling without passing through the radiator, so that the engine can quickly heat up to the optimal operating temperature, thereby improving the stability of engine operation.

[0034] Reference Figure 1 and Figure 2 , wherein the base 100 is provided with a first fixing hole 120, the top cover 200 is provided with a second fixing hole 240, and the second bolt 320 is passed through the first fixing hole 120 and the second fixing hole 240. During installation, the water pump assembly is fixedly connected to the engine by passing the second bolt 320 through the first fixing hole 120 and the second fixing hole 240, thereby improving the stability of the connection. Of course, it is also possible that only the base 100 is provided with a fixing hole, and the second bolt 320 is passed through the fixing hole, so that the base 100 is fixedly connected to the engine, but the stability of the water pump assembly in this connection method during operation is relatively worse than the former.

[0035] Reference Figures 1 to 4It can be imagined that a sealing ring 250 is provided between the base 100 and the top cover 200. By providing the sealing ring 250, the sealing effect of the base 100 and the top cover 200 can be improved, and the stability can be improved. It is easy to understand that the base 100 is provided with a connecting surface 130, the first fixing hole 120 is provided on the connecting surface 130, the connecting surface 130 is abutted against the engine, and the water outlet 110 is provided on the connecting surface 130. By providing the first fixing hole 120 on the first connecting surface 130, the stability of the connection can be improved. By setting the water outlet 110 on the connecting surface 130, the water outlet 110 is directly connected to the water inlet of the engine. At this time, the coolant can directly enter the engine from the water outlet 110, and there is no need to set up additional external pipelines to connect the water pump and the engine, which simplifies the water pump structure and reduces the extra space occupied by the design of external pipelines. In addition, the water outlet 110 of the base 100 is directly fitted with the water inlet of the engine, which is convenient for the operator to seal and improves the reliability of the sealing between the base 100 and the engine.

[0036] Reference Figures 1 to 4 In this embodiment, the base 100 is provided with an axial hole 140, a bearing 420 is provided in the axial hole 140, the pump shaft 400 is penetrated by the bearing 420, and an oil seal 430 is provided on the side of the bearing 420 close to the water chamber 210. Among them, the bearing 420 is provided at two, and a sleeve 440 is provided before the two bearings 420. By providing the oil seal 430, it is possible to prevent the engine oil from leaking and the water vapor, dust and other debris in the environment from entering the engine, so that the lubrication effect is reduced. Further, the pump shaft 400 is provided with a water seal 450, and the water seal 450 is provided between the impeller 410 and the base 100. By providing the water seal 450, it is possible to ensure the sealing between the impeller 410 and the base 100, prevent the coolant from leaking, and affect the cooling effect. It is easy to understand that an overflow chamber 150 is formed between the oil seal 430 and the water seal 450, and the base 100 is provided with an overflow pipe 160, and the overflow pipe 160 is connected to the overflow chamber 150. When the coolant leaks through the water seal 450 and enters the overflow chamber 150, it can be discharged from the overflow pipe 160, thereby further preventing the coolant from entering the shaft hole 140 and damaging the lubrication of the bearing 420 and the corrosion of the components, extending the service life and improving stability.

[0037] A second aspect of the present application provides an engine, comprising the water pump assembly described in the first aspect of the present application.

[0038] The water pump assembly described in the first aspect of the embodiment of the present application is applied to the engine. The base 100 and the top cover 200 are first connected into one body by using the first bolt 310, and then the water pump assembly is fixedly connected to the engine by using the second bolt 320. When the water pump assembly and the engine are disassembled and assembled, the water pump assembly is always a whole, which not only ensures the stability of the water pump assembly, but also simplifies the disassembly and assembly process, reduces labor intensity, and improves work efficiency; by providing a bypass pipe 230 connected to the water cavity 210 on the top cover 200, when the engine is started at low temperature, the coolant is controlled by the thermostat to enter the water cavity 210 from the bypass pipe 230 and then pumped into the engine, so as to perform small-circulation cooling without passing through the radiator, so that the engine can quickly heat up to the optimal operating temperature, thereby improving the smoothness of engine operation.

[0039] A third aspect of the present application provides a motorcycle, comprising the engine described in the second aspect of the present application.

[0040] The engine described in the second embodiment of the present application is applied to a motorcycle. The base 100 and the top cover 200 are first connected into one body by using a first bolt 310, and then the water pump assembly is fixedly connected to the engine by using a second bolt 320. When the water pump assembly and the engine are disassembled and assembled, the water pump assembly is always a whole, which not only ensures the stability of the water pump assembly, but also simplifies the disassembly and assembly process, reduces labor intensity, and improves work efficiency; by providing a bypass pipe 230 connected to the water cavity 210 on the top cover 200, when the engine is started at low temperature, the coolant is controlled by the thermostat to enter the water cavity 210 from the bypass pipe 230 and then pumped into the engine, so as to perform small-circulation cooling without passing through the radiator, so that the engine can quickly heat up to the optimal operating temperature, thereby improving the stability of the engine operation.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0042] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A water pump assembly, characterized in that: include: A base, with a water outlet on one side; The top cover is connected to the base by a first bolt, the top cover and the base define a water cavity together, the water cavity is communicated with the water outlet, the top cover is provided with a water inlet pipe and a bypass pipe, the water inlet pipe and the bypass pipe are both communicated with the water cavity, the top cover and the base are also penetrated by a second bolt, the second bolt is used to be fixedly connected with the engine; A pump shaft is rotatably arranged on the base, and the pump shaft is provided with an impeller, and the impeller is arranged in the water cavity.

2. The water pump assembly according to claim 1, characterized in that: The base is provided with a first fixing hole, the top cover is provided with a second fixing hole, and the second bolt is passed through the first fixing hole and the second fixing hole.

3. The water pump assembly according to claim 2, characterized in that: The base is provided with a connection surface, the first fixing hole is provided on the connection surface, the connection surface is in contact with the engine, and the water outlet is provided on the connection surface.

4. The water pump assembly according to claim 1, characterized in that: A sealing ring is arranged between the base and the top cover.

5. The water pump assembly according to claim 1, characterized in that: The base is provided with an axial hole, a bearing is provided in the axial hole, the pump shaft passes through the bearing, and an oil seal is provided on a side of the bearing close to the water cavity.

6. The water pump assembly according to claim 5, characterized in that: The bearings are arranged in two, and a sleeve is arranged between the two bearings.

7. The water pump assembly according to claim 5, characterized in that: The pump shaft is provided with a water seal, and the water seal is arranged between the impeller and the base.

8. The water pump assembly according to claim 7, characterized in that: An overflow cavity is formed between the oil seal and the water seal, and the base is provided with an overflow pipe, which is communicated with the overflow cavity.

9. An engine, characterized in that It comprises the water pump assembly as described in any one of claims 1 to 8.

10. A motorcycle, characterized in that Comprising the engine as claimed in claim 9.

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