Transmission structure of automobile water pump control valve

Abstract

The utility model relates to the technical field of valves, in particular to a transmission structure of an automobile water pump control valve, which comprises a rocker arm and a valve core linked with the rocker arm, the rocker arm comprises a rocker arm body for operation and a gear shaft, the valve core comprises a valve core part for opening and closing a valve and a rack part, the gear shaft is meshed with the rack part, and the rack part is arranged along the vertical direction. The utility model has the beneficial effects that the assembly difficulty and the precision requirement are reduced, and the assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a transmission structure of an automobile water pump control valve. Background Art

[0002] The automobile water pump is an important component for cooling the automobile engine. The utility model patent with patent application number CN202320985535.3 discloses an integrated mechanical water pump, comprising a water pump housing, a valve body housing (2) is arranged on one side of the inner wall of the water pump housing, the valve body housing (2) and the water pump housing (1) are an integrated structure, a rotor (3) is arranged on the top of the water pump housing (1), the rotor (3) is connected to a transmission shaft, one end of the transmission shaft passes through the water pump housing (1) and is connected to an impeller (4), a valve rocker arm (6) is installed on the water pump housing (1), and the valve rocker arm (6) is connected to a valve core (5) through a shaft.

[0003] Since the valve rocker arm is connected to the valve core through the shaft body, during actual assembly, a tool is needed to press the valve rocker arm into the shaft body to form an interference fit between the two. If the press-fit is not in place, the valve rocker arm cannot drive the shaft body. The assembly accuracy requirements are high and the assembly steps are cumbersome. After long-term use, the valve rocker arm and the shaft body will become loose, causing the mechanical water pump to fail. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a transmission structure of an automobile water pump control valve in view of the above-mentioned deficiencies in the prior art, thereby reducing the assembly difficulty and precision requirements and improving the assembly efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transmission structure of an automobile water pump control valve, comprising a rocker arm and a valve core linked to the rocker arm, the rocker arm comprising a rocker arm body and a gear shaft for operation, the valve core comprising a valve core portion and a rack portion for opening and closing the valve, the gear shaft and the rack portion meshing with each other, the rack portion being arranged in a vertical direction, and the gear shaft being arranged in a horizontal direction.

[0006] The utility model with the above-mentioned characteristics adopts a rack and pinion meshing method as the connection structure between the valve core and the rocker arm. Compared with the connection structure between the rocker arm and the valve core in the background technology, it is only necessary to mesh the rack part and the rocker arm into place during assembly, without the need for interference fit, thereby reducing the assembly difficulty and precision requirements, improving the assembly efficiency, facilitating disassembly and assembly, and facilitating subsequent maintenance.

[0007] A further configuration of the utility model is that it also includes a rocker arm seat, which includes a base plate and two placement blocks arranged on the base plate, the base plate is provided with a rack through hole for the rack part to pass through, the two placement blocks are arranged on both sides of the rack through hole, the gear shaft is installed on the two placement blocks, and the gear of the gear shaft is suspended on the rack through hole and meshes with the rack part.

[0008] The utility model with the above characteristics: by arranging a placement block for mounting the rocker arm, the gear shaft is horizontally installed on the rocker arm seat so that it can mesh with the vertically placed rack part, and the gear of the gear shaft is suspended on the rack through hole and meshes with the rack part, thereby reducing the transmission error caused by uneven contact surface or interference from foreign matter.

[0009] A further configuration of the utility model is that the rocker arm body is vertically arranged with the gear shaft, the rocker arm body is located outside one of the placement blocks, and a limit block for limiting the swing angle of the rocker arm body is arranged on the outer peripheral surface of the placement block.

[0010] The utility model with the above-mentioned characteristics limits the rising height of the valve core by limiting the swing amplitude of the rocker arm body, thereby preventing the valve core from failing to cooperate with the valve due to excessive rising, thereby preventing the valve from failing to cooperate with the valve.

[0011] A further arrangement of the utility model is: a rocker cover is detachably connected to the rocker seat, the rocker cover comprises a cover body and two splicing blocks arranged on the cover body, the cover body and the placement block are detachably connected by fasteners, the splicing block is located at the interval between the two placement blocks and is spliced ​​with the placement blocks, and an enclosed space for the movement of the gear shaft and the rack part is formed between the rocker cover and the rocker seat, a first arc groove for placing the gear shaft is provided on the placement block, and a second arc groove is provided on the cover body corresponding to the first arc groove, and the first arc groove and the second arc groove cooperate to clamp the gear shaft.

[0012] The utility model with the above-mentioned characteristics: the rocker cover and the rocker seat are detachably connected by fasteners, forming an enclosed space for the movement of the gear shaft and the rack part. This design effectively prevents external dust, moisture or other impurities from entering the transmission structure, protects key components such as the gear shaft and the rack part from damage, and extends the service life; a first arc groove is provided on the placement block for placing the gear shaft, and a second arc groove is provided at the corresponding position of the cover body. The two cooperate to clamp the gear shaft. This design not only provides stable support for the gear shaft, but also ensures the coaxiality and stability of the gear shaft during rotation through precise arc groove design, thereby improving the transmission accuracy and reliability.

[0013] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model without the rocker cover.

[0015] Figure 2 It is a structural schematic diagram of the rocker arm seat according to an embodiment of the utility model.

[0016] Figure 3 It is a schematic structural diagram of a rocker arm cover according to an embodiment of the utility model.

[0017] Figure 4 It is an exploded view of an embodiment of the utility model.

[0018] Figure 5 It is a structural schematic diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0019] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0020] like Figure 1-5 The transmission structure of a car water pump control valve shown in the figure includes a rocker arm 3 and a valve core 2 linked to the rocker arm 3. The rocker arm 3 includes a rocker arm body 31 for operation and a gear shaft 32. The valve core 2 includes a valve core part 21 and a rack part 22 for opening and closing the valve. The rack part 22 and the gear shaft 32 are meshed with each other. The rack part 22 is arranged in the vertical direction, and the gear shaft 32 is arranged in the horizontal direction.

[0021] The rocker arm seat 4 includes a bottom plate 41 and two placement blocks 42 arranged on the bottom plate 41. The bottom plate 41 is connected to the connecting portion 11 of the valve body 1 by fasteners. The bottom plate 41 is provided with a rack through hole 411 for the rack portion 22 to pass through. The placement blocks 42 are located on both sides of the rack through hole 411. The gear shaft 32 is placed on the two placement blocks 42. The rocker arm body 31 is located outside one of the placement blocks 42. The outer peripheral surface of the placement block 42 is provided with a limit block 421 for limiting the swing angle of the rocker arm body 31. The rocker arm cover 5 includes a cover body 51, a setting The two splicing blocks 52 on the cover body 51 are detachably connected to the placement block 42 by fasteners. The splicing block 52 is located at the interval between the two placement blocks 42 and is spliced ​​with the placement block 42. A closed space for the movement of the gear shaft and the rack part is formed between the rocker cover 5 and the rocker seat 4. A first arc groove 422 for placing the gear shaft 32 is provided on the placement block 42. A second arc groove 511 is provided on the cover body 51 corresponding to the first arc groove 422. The first arc groove 422 and the second arc groove 511 cooperate to clamp the gear shaft 32.

[0022] In actual use, the opening and closing of the valve is achieved by lifting and lowering the valve core. The rocker arm body is operated to rotate the gear shaft around the axis, and the rack part meshing with the gear shaft moves up or down in the vertical direction to achieve the opening and closing of the valve.

Claims

1. A transmission structure of an automobile water pump control valve, comprising a rocker arm and a valve core linked to the rocker arm, characterized in that: The rocker arm includes a rocker arm body and a gear shaft for operation, the valve core includes a valve core part and a rack part for opening and closing the valve, the gear shaft and the rack part are meshed with each other, the rack part is arranged in the vertical direction, and the gear shaft is arranged in the horizontal direction.

2. The transmission structure of an automobile water pump control valve according to claim 1, characterized in that: It also includes a rocker arm seat, which includes a base plate and two placement blocks arranged on the base plate. The base plate is provided with a rack through hole for the rack part to pass through, and the two placement blocks are arranged on both sides of the rack through hole. The gear shaft is installed on the two placement blocks, and the gear of the gear shaft is suspended on the rack through hole and meshes with the rack part.

3. The transmission structure of the automobile water pump control valve according to claim 2, characterized in that: The rocker arm body is vertically arranged with respect to the gear shaft, and the rocker arm body is located outside one of the placement blocks, and a limit block for limiting the swing angle of the rocker arm body is arranged on the outer peripheral surface of the placement block.

4. The transmission structure of an automobile water pump control valve according to claim 2, characterized in that: A rocker cover is detachably connected to the rocker seat, and the rocker cover includes a cover body and two splicing blocks arranged on the cover body. The cover body and the placement block are detachably connected by fasteners. The splicing block is located at the interval between the two placement blocks and is spliced ​​with the placement blocks. An enclosed space for the movement of the gear shaft and the rack part is formed between the rocker cover and the rocker seat. The placement block is provided with a first arc groove for the gear shaft to be placed, and the cover body is provided with a second arc groove corresponding to the first arc groove, and the first arc groove and the second arc groove cooperate to clamp the gear shaft.

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