Automobile water pump impeller structure

Abstract

The utility model discloses an automobile water pump impeller structure which comprises an installation base, a prism is fixedly connected to the upper end of the installation base, limiting grooves are formed in the four ends of the outer side of the installation base, limiting blocks are correspondingly arranged in the limiting grooves, and blade base bodies are fixedly connected to the other ends of the limiting blocks. Blades are fixedly connected to the upper ends of the blade base bodies, second positioning bolts are in threaded connection with the interiors of the limiting blocks and the limiting grooves, open grooves are formed in the butt joint ends of the blade base bodies, and positioning plates are fixedly connected to the adjacent blade base bodies; the limiting grooves are formed in the outer end of the mounting base and can quickly correspond to the limiting blocks on the blade base bodies, every two adjacent blade base bodies can also be mounted through the corresponding positioning assembly, if a certain blade is damaged in the using process, the damaged blade can be independently replaced, and the mounting efficiency is improved. The overall service life of the impeller is prolonged, and economic benefits are improved.

Description

Technical Field

[0001] The utility model relates to the field of automobile water pumps, in particular to an automobile water pump impeller structure. Background Art

[0002] In the cylinder block of a car engine, there are multiple water channels for cooling water circulation, which are connected to the radiator (commonly known as the water tank) at the front of the car through water pipes, forming a large water circulation system. A water pump is installed at the upper water outlet of the engine, which is driven by a fan belt to pump out the hot water in the water channel of the engine cylinder and pump cold water in. There is also a thermostat next to the water pump. When the car is just started (cold car), it is not opened, so that the cooling water does not pass through the water tank and only circulates in the engine (commonly known as small circulation). When the engine temperature reaches above 95 degrees, it is opened, and the hot water in the engine is pumped into the water tank. The cold wind when the car moves forward blows through the water tank, taking away the heat;

[0003] Due to the large size and complex structure of the impeller, cracks and damage are easily formed during casting, which leads to the substandard quality of the entire impeller and waste of resources. Therefore, we propose a water pump impeller structure that uses a split impeller structure to form an impeller by splicing multiple small parts together, which reduces the volume of the casting mold and reduces the difficulty of production. Figure 4 The aluminum alloy impeller currently used in water pumps for motorcycle engine right crankcases has a small diameter, and the hexagonal prisms on the impeller base are domed. To ensure adequate water pumping, the height of the hexagonal prisms and the aluminum alloy impeller must be increased. When this aluminum alloy impeller is installed on the water pump, the water pump cover is increased, increasing the overall height of the water pump. When the water pump is installed on the right crankcase of the engine, the higher height of the right crankcase cover increases. When the engine is mounted on the motorcycle frame, the crankcase cover is close to the footrests, causing interference between the driver's feet and the water pump cover during driving, making operation extremely inconvenient. Utility Model Content

[0004] The purpose of the utility model is to provide an automobile water pump impeller structure, which solves the problem in the prior art that cracks and damages are easily formed during the casting of automobile water pump impellers, thereby causing the quality of the entire impeller to be substandard and resulting in a waste of resources.

[0005] To achieve the above object, an automobile water pump impeller structure is provided, comprising a mounting base, wherein a prism is fixedly connected to the upper end of the mounting base, limit grooves are formed at the four outer ends of the mounting base, limit blocks are correspondingly provided inside the limit grooves, the other end of the limit block is fixedly connected to a blade base, and the upper end of the blade base is fixedly connected to a blade;

[0006] The internal thread of the limit block and the limit groove is connected with a positioning bolt 2, the butt end of the blade base is provided with a slot, a positioning plate is fixedly connected to the adjacent blade base, the positioning plate is provided with a screw hole, and the internal thread of the positioning plate and the screw hole is connected with a positioning bolt 1.

[0007] According to the automobile water pump impeller structure, stepped holes are provided inside the prism and the mounting base.

[0008] According to the automobile water pump impeller structure, the number of the blades is four.

[0009] According to the automobile water pump impeller structure, the diameter of the blade base after being connected to the mounting base is greater than the height of the prism.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. This patent provides a limit groove at the outer end of the mounting base to quickly correspond to the limit block on the blade base, and two adjacent blade bases can also be installed through the positioning assembly. If a blade is damaged during use, the damaged blade can be replaced separately, thereby extending the overall service life of the impeller and improving economic benefits.

[0012] 2. This patent fixes the stepped hole of the impeller to the rotating shaft through a thread. Since the heights of the blades and prisms are reduced, the thickness of the water pump can be reduced when installing this type of impeller, effectively preventing the water pump cover from interfering with the driver's feet and ensuring normal operation of the driver.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a cross-sectional view of an automobile water pump impeller structure according to the utility model;

[0016] Figure 2 This is a schematic diagram of the installation structure of an automobile water pump impeller structure of the utility model;

[0017] Figure 3 This is a schematic diagram of a blade base of an automobile water pump impeller structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the installation of an automobile water pump impeller in the prior art.

[0019] In the figure: 1. Blade base; 2. Mounting base; 3. Prism; 4. Blade; 5. Step hole; 6. Positioning bolt 1; 7. Limiting groove; 8. Slot; 9. Positioning plate; 10. Screw hole; 11. Positioning bolt 2; 12. Limiting block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution: an automobile water pump impeller structure, comprising a mounting base 2, the upper end of the mounting base 2 is fixedly connected to a prism 3, the four outer ends of the mounting base 2 are provided with limiting grooves 7, the inner portion of the limiting groove 7 is correspondingly provided with a limiting block 12, the other end of the limiting block 12 is fixedly connected to a blade base 1, the upper end of the blade base 1 is fixedly connected to a blade 4, the thickness of the blade base 1 gradually decreases from the lower end of the prism 3 to the circumference of the base, so that the upper surface of the blade base 1 is a downward curved arc surface, the angle corresponding to the involute arc segment of the blade 4 is 45-55 degrees, each blade 4 extends vertically upward, and the extension height of each blade 4 corresponding to one end of the circumference of the blade base 1 and one end of the prism 3 is respectively lower than the extension height of the middle part of the involute arc segment, so that the middle part of the blade 4 arc segment to both ends of the blade 4 are downward inclined surfaces;

[0022] The limiting block 12 is connected to the internal thread of the limiting groove 7 with a positioning bolt 2 11, and the butt end of the blade base 1 is provided with a slot 8, and a positioning plate 9 is fixedly connected to the adjacent blade base 1, and a screw hole 10 is provided on the positioning plate 9. The internal thread of the positioning plate 9 and the screw hole 10 is connected with a positioning bolt 1 6, and a stepped hole 5 is provided inside the prism 3 and the mounting base 2. The number of blades 4 is four, and the diameter of the blade base 1 after being connected to the mounting base 2 is larger than the height of the prism 3. The stepped hole 5 on the prism 3 is fixedly connected to the rotating shaft through a thread. Since the height of the blade 4 and the prism 3 are reduced, when installing this type of impeller, the thickness of the water pump can be reduced, and the water pump cover can be effectively prevented from interfering with the driver's feet, ensuring normal operation of the driver. When a blade 4 is damaged during use, the impeller is stopped, the damaged blade 4 is found, and the positioning bolt 1 6 and the positioning bolt 2 11 on the damaged blade 4 are screwed. At this time, the damaged blade 4 and the blade base 1 can be separated from the entire mounting base 2 separately, which is convenient for the staff to replace it, thereby extending the overall service life of the impeller.

[0023] Working principle: When in use, the stepped hole 5 on the prism 3 is fixedly connected to the rotating shaft through a thread. Since the heights of the blades 4 and the prism 3 are reduced, the thickness of the water pump can be reduced when installing this type of impeller, effectively preventing the water pump cover from interfering with the driver's feet, and ensuring normal operation of the driver. When a blade 4 is damaged during use, the impeller is stopped, the damaged blade 4 is found, and the positioning bolt 1 6 and the positioning bolt 2 11 on the damaged blade 4 are tightened. At this time, the damaged blade 4 and the blade base 1 can be separated from the entire mounting base 2 separately, which is convenient for the staff to replace it, thereby extending the overall service life of the impeller and improving economic benefits.

[0024] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An automobile water pump impeller structure, comprising a mounting base (2), characterized in that: The upper end of the mounting base (2) is fixedly connected to a prism (3), and the four outer ends of the mounting base (2) are provided with limiting grooves (7), and the interiors of the limiting grooves (7) are correspondingly provided with limiting blocks (12), and the other end of the limiting block (12) is fixedly connected to a blade base (1), and the upper end of the blade base (1) is fixedly connected to a blade (4); The limiting block (12) and the limiting groove (7) are connected to the inner thread of the positioning bolt (11), the butt end of the blade base (1) is provided with a slot (8), a positioning plate (9) is fixedly connected to the adjacent blade base (1), the positioning plate (9) is provided with a screw hole (10), and the positioning plate (9) and the screw hole (10) are connected to the inner thread of the positioning bolt (6).

2. The automobile water pump impeller structure according to claim 1, characterized in that: Stepped holes (5) are provided inside the prism (3) and the mounting base (2).

3. The automobile water pump impeller structure according to claim 1, characterized in that: The number of the blades (4) is four.

4. The automobile water pump impeller structure according to claim 1, characterized in that: The diameter of the blade base (1) after being connected to the mounting base (2) is greater than the height of the prism (3).

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