High-concentricity water pump

Abstract

The utility model relates to the field of water pumps, and discloses a high-concentricity water pump which comprises a pump body, the inner wall of the pump body is rotationally connected with a rotor body, the outer wall of the rotor body is provided with a damping rubber check ring, a rotor shaft is arranged in the pump body, and the surface of the rotor shaft is provided with a self-aligning rubber shaft sleeve. A machine shell is arranged on the surface of the pump body, a rear cover is arranged on the surface of the machine shell, a buckle is fixedly connected to the surface of the machine shell, a clamping groove is formed in the surface of the rear cover, a mounting groove is formed in the surface of the buckle, a groove is formed in the inner wall of the buckle, and a moving block is slidably connected to the inner wall of the groove. And the outer wall of the moving block is fixedly connected with a clamping plate. According to the utility model, the buckle, the clamping groove, the mounting groove and other structures are arranged, so that the situation that additional tools are needed for mounting due to the fact that a traditional bolt is used for fixing is avoided, the mounting firmness is improved by utilizing a double-buckle principle, and the use safety of the pump body is ensured.

Description

Technical Field

[0001] The utility model relates to the field of water pumps, in particular to a high concentricity water pump. Background Art

[0002] A concentric water pump is a water pump that uses centrifugal force to increase the liquid pressure and discharge it to the outlet when the impeller rotates in the pump casing. It is a common water-using tool in industrial and agricultural fields, with the advantages of high efficiency, reliability and low maintenance costs. Concentricity refers to the axial error between the motor shaft and the water pump shaft. The higher the concentricity, the more stable the coupling will work and the higher the transmission efficiency will be.

[0003] After searching, Chinese patent announcement number: CN216477879U discloses a high-concentricity air-conditioning drainage pump that is easy to assemble. By connecting the lower shell, upper shell, pump seat and pump cover at the same time with connecting screws, the error caused by the installation process can be reduced, thereby improving the concentricity between the pump blades and the internal parts of the pump and the pump seat.

[0004] In the above technical solution, connecting screws are used to connect the upper and lower shells, the pump body and the pump cover to reduce the installation error. However, when installing the pump body, additional tools are required to use screws for installation. In the process of closing the cover, each set of screw holes needs to be repeatedly aligned, which increases the complexity of the operation. At the same time, the crooked screws during the installation process will cause the pressure resistance of the cover to decrease, thereby reducing the convenience of installation and the safety of the water pump. For this reason, a high concentricity water pump is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a high concentricity water pump, which aims to improve the problem in the prior art that high concentricity water pumps are fixed with screws, which requires the use of additional tools and the need to repeatedly align the screw holes, resulting in inconvenience in installation.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high concentricity water pump, comprising a pump body, the inner wall of the pump body is rotatably connected to the rotor body, the outer wall of the rotor body is provided with a shock-absorbing rubber retaining ring, the rotor shaft is provided inside the pump body, the surface of the rotor shaft is provided with a self-aligning rubber sleeve, the surface of the pump body is provided with a casing, the surface of the casing is provided with a back cover, the surface of the casing is fixedly connected with a clip, the surface of the back cover is provided with a clip, the surface of the clip is provided with an installation slot, the inner wall of the clip is provided with a groove, the inner wall of the groove is slidably connected with a moving block, the outer wall of the moving block is fixedly connected with a clip plate, the top of the clip plate is fixedly connected with a positioning block, the bottom of the clip plate is fixedly connected with a spring, the inner wall of the back cover is provided with a positioning hole, and the surface of the clip is provided with a fixing auxiliary component.

[0007] As a further description of the above technical solution:

[0008] A slot is provided on the surface of the housing, a clamping block is fixedly connected to the inner wall of the back cover, and a rubber strip is fixedly connected to the inner wall of the slot.

[0009] As a further description of the above technical solution:

[0010] The outer wall of the buckle is matched with the inner wall of the card slot, the outer wall of the clamping plate is matched with the inner wall of the installation slot, and the outer wall of the positioning block is matched with the inner wall of the positioning hole.

[0011] As a further description of the above technical solution:

[0012] The bottom end of the spring is fixedly connected to the inner wall of the mounting groove.

[0013] As a further description of the above technical solution:

[0014] The fixing auxiliary component includes a through slot, and an auxiliary plate is slidably connected to the inner wall of the through slot.

[0015] As a further description of the above technical solution:

[0016] The through slot is arranged on the outer wall of the buckle on a side away from the housing.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the auxiliary plate is fixedly connected to the outer wall of the clamping plate.

[0019] As a further description of the above technical solution:

[0020] The inner wall of the slot is adapted to the outer wall of the card block.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, by providing a buckle, a slot, an installation slot, a snap plate, a spring, a positioning block, and a fixing auxiliary component, the rear cover is fixed to the casing using the buckle principle, avoiding the use of traditional bolts that require the use of additional tools for installation. At the same time, the use of double buckles increases the firmness of the installation, improves the convenience of installation, and ensures the safety of the pump body.

[0023] 2. In the present invention, the friction between the back cover and the housing is increased by providing a slot, a rubber strip and a clamping block, thereby ensuring the tightness of the connection between the two and improving the installation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1This is an exploded bottom view schematic diagram of the main structure of a high concentricity water pump proposed by the utility model;

[0025] Figure 2 A high concentricity water pump proposed in this utility model Figure 1 A magnified schematic diagram of area A in the middle;

[0026] Figure 3 This is a schematic exploded side view of the main structure of a high concentricity water pump proposed in the utility model;

[0027] Figure 4 The utility model is a schematic cross-sectional view of a buckle structure of a high concentricity water pump.

[0028] Legend:

[0029] 1. Pump body; 2. Rotor body; 3. Rotor shaft; 4. Self-aligning rubber bushing; 5. Shock-absorbing rubber retaining ring; 6. Casing; 7. Back cover; 8. Buckle; 9. Slot; 10. Mounting slot; 11. Groove; 12. Moving block; 13. Spring; 14. Snap plate; 15. Positioning block; 16. Through slot; 17. Auxiliary plate; 18. Positioning hole; 19. Slot; 20. Rubber strip; 21. Block. DETAILED DESCRIPTION

[0030] 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 present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 1-Figure 3The utility model provides an embodiment of a high concentricity water pump, comprising a pump body 1, the inner wall of the pump body 1 is rotatably connected to the rotor body 2, the outer wall of the rotor body 2 is provided with a shock-absorbing rubber retaining ring 5, when the water pump rotor body 2 rotates, an axial force is generated, and the shock-absorbing rubber retaining ring 5 is utilized to absorb the impact of the axial force of the rotor body 2, a rotor shaft 3 is provided inside the pump body 1, and a self-aligning rubber bushing 4 is provided on the surface of the rotor shaft 3. During the assembly process of the water pump, the installation deviation of the rotor shaft 3 is not concentric due to the tolerance of the manufacturing of parts, and the elasticity of the self-aligning rubber bushing 4 is utilized to ensure that the rotor shaft 3 remains concentric after installation, a casing 6 is provided on the surface of the casing 6, a back cover 7 is provided on the surface of the casing 6, a buckle 8 is fixedly connected to the surface of the casing 6, and a slot 9 is provided on the surface of the back cover 7. The buckle 8 is connected to the There are several groups of card slots 9, and several groups of card buckles 8 and card slots 9 are distributed in a circular array with the center point of the casing 6 as the axis of symmetry. A mounting groove 10 is provided on the surface of the card buckle 8, and a groove 11 is provided on the inner wall of the card buckle 8. The inner wall of the groove 11 is slidably connected with a moving block 12. The cooperation between the moving block 12 and the groove 11 makes the card plate 14 maintain a vertical state during the lifting process. The outer wall of the moving block 12 is fixedly connected with the card plate 14, and the top of the card plate 14 is fixedly connected with a positioning block 15, and the bottom of the card plate 14 is fixedly connected with a spring 13. The elastic force of the spring 13 can make the card plate 14 always in the upper end area of ​​the mounting slot 10. After the positioning block 15 is subjected to force, the spring 13 can be compressed. A positioning hole 18 is provided on the inner wall of the back cover 7, and a fixing auxiliary component is provided on the surface of the card buckle 8.

[0032] Reference Figure 2-Figure 4 The outer wall of the clip 8 is adapted to the inner wall of the slot 9, the outer wall of the clip plate 14 is adapted to the inner wall of the mounting slot 10, the outer wall of the positioning block 15 is adapted to the inner wall of the positioning hole 18, and the bottom end of the spring 13 is fixedly connected to the inner wall of the mounting slot 10. The fixing auxiliary component includes a through slot 16, which is provided on the outer wall of the clip 8 away from the casing 6. The through slot 16 and the mounting slot 10 are connected. By applying force to the auxiliary plate 17, the clip plate 14 can be driven to move downward. The inner wall of the through slot 16 is slidably connected with an auxiliary plate 17. When the auxiliary plate 17 moves downward, the end of the auxiliary plate 17 away from the clip plate 14 will gradually extend out from the inside of the through slot 16, and the outer wall of the auxiliary plate 17 is fixedly connected to the outer wall of the clip plate 14.

[0033] Reference Figure 2-Figure 3 A slot 19 is provided on the surface of the casing 6, the inner wall of the slot 19 is adapted to the outer wall of the card block 21, the inner wall of the back cover 7 is fixedly connected with the card block 21, and the inner wall of the slot 19 is fixedly connected with a rubber strip 20. The rubber strip 20 increases the friction between the card block 21 when inserted into the slot 19, thereby ensuring the tightness between the slot 19 and the card block 21.

[0034] Working principle: The buckle 8 of the back cover 7 cooperates with the card slot 9 to fix it on the housing 6. When the back cover 7 is snapped into the housing 6, the positioning block 15 will be squeezed by the inner wall of the card slot 9, so that the clamping plate 14 is forced to squeeze the spring 13 to contract. At this time, the moving block 12 will slide downward inside the groove 11. When the buckle 8 is completely snapped into the inside of the card slot 9, the positioning block 15 loses its squeezing force due to the concave positioning hole 18. The spring 13 then recovers its elasticity and drives the moving block 12 to move upward inside the groove 11. The positioning block 15 is embedded in the positioning hole 18, increasing the card The buckle 8 and the card slot 9 are firmly connected. At the same time, the slot 19 will be inserted into the outer wall of the card block 21, increasing the friction between the casing 6 and the back cover 7, ensuring the tightness of the connection between the two. When the back cover 7 needs to be removed, the auxiliary plate 17 is manually pressed downward. The auxiliary plate 17 will drive the card plate 14 to move downward inside the installation groove 10 until the positioning block 15 is disengaged from the positioning hole 18, releasing the limit between the buckle 8 and the card slot 9, and increasing the stability of the back cover 7 fixed on the casing 6 through the double card connection function, thereby ensuring the safety of the pump body 1 in use.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high concentricity water pump, comprising a pump body (1), wherein the inner wall of the pump body (1) is rotatably connected to a rotor body (2), the outer wall of the rotor body (2) is provided with a shock-absorbing rubber retaining ring (5), the interior of the pump body (1) is provided with a rotor shaft (3), the surface of the rotor shaft (3) is provided with a self-aligning rubber sleeve (4), the surface of the pump body (1) is provided with a housing (6), and the surface of the housing (6) is provided with a rear cover (7), characterized in that: The surface of the housing (6) is fixedly connected with a buckle (8), the surface of the back cover (7) is provided with a card slot (9), the surface of the buckle (8) is provided with a mounting slot (10), the inner wall of the buckle (8) is provided with a groove (11), the inner wall of the groove (11) is slidably connected with a moving block (12), the outer wall of the moving block (12) is fixedly connected with a clamping plate (14), the top of the clamping plate (14) is fixedly connected with a positioning block (15), the bottom of the clamping plate (14) is fixedly connected with a spring (13), the inner wall of the back cover (7) is provided with a positioning hole (18), and the surface of the buckle (8) is provided with a fixing auxiliary component.

2. The high concentricity water pump according to claim 1, characterized in that: A slot (19) is provided on the surface of the housing (6), a clamping block (21) is fixedly connected to the inner wall of the rear cover (7), and a rubber strip (20) is fixedly connected to the inner wall of the slot (19).

3. The high concentricity water pump according to claim 1, characterized in that: The outer wall of the buckle (8) is matched with the inner wall of the card slot (9), the outer wall of the connecting plate (14) is matched with the inner wall of the installation slot (10), and the outer wall of the positioning block (15) is matched with the inner wall of the positioning hole (18).

4. The high concentricity water pump according to claim 1, characterized in that: The bottom end of the spring (13) is fixedly connected to the inner wall of the mounting groove (10).

5. The high concentricity water pump according to claim 1, characterized in that: The fixing auxiliary component comprises a through slot (16), and an auxiliary plate (17) is slidably connected to the inner wall of the through slot (16).

6. The high concentricity water pump according to claim 5, characterized in that: The through slot (16) is formed on the outer wall of the buckle (8) on a side away from the housing (6).

7. The high concentricity water pump according to claim 5, characterized in that: The outer wall of the auxiliary plate (17) is fixedly connected to the outer wall of the clamping plate (14).

8. The high concentricity water pump according to claim 2, characterized in that: The inner wall of the slot (19) is adapted to the outer wall of the clamping block (21).

Images