Self-priming pump with vibration damping sealing function

Abstract

The utility model provides a self priming pump with shock attenuation sealing function, including middle cover, with the middle cover buckle back cover and set up between the shock attenuation device of middle cover and back cover, wherein one side of middle cover is provided with water outlet, the shock attenuation device is annular piece with one end opening, and the opening of shock attenuation device is towards the water outlet side of self priming pump, and it is also provided with the front cover that the middle cover is covered in and is connected with back cover, the shock attenuation device is provided with a plurality of assembly holes, back cover is provided with a plurality of connecting columns to the direction of middle cover, and the corresponding middle cover is provided with a plurality of connecting holes, the assembly hole is sleeved on the connecting column of back cover, and the connecting column is inserted in the connecting hole of middle cover, the utility model has the advantages of remarkable shock attenuation effect, improved noise reduction performance, reliable sealing performance, strong adaptability and improved work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of self-priming pump technology, specifically to a self-priming pump with vibration damping and sealing functions. Background Technology

[0002] Traditional self-priming pumps have several problems: 1. Fluctuations in liquid pressure inside the plastic middle and rear covers cause elastic deformation of these covers, leading to significant vibration. 2. High-speed water leakage between the middle and rear covers during operation impacts the inner wall of the rear cover, generating considerable impact noise. 3. Large gaps exist between the middle and rear covers due to deformation during injection molding, causing fluid leakage from the middle cover to the rear cover, resulting in internal pressure loss and reduced pump efficiency. Currently available self-priming pumps lack vibration damping devices in their middle and rear cover connection structures, failing to meet the combined requirements of vibration reduction, noise reduction, and high-efficiency operation. Long-term use can lead to wear and tear due to vibration, affecting the pump's lifespan.

[0003] Therefore, there is an urgent need to develop a self-priming pump with both vibration reduction and enhanced sealing functions. Utility Model Content

[0004] This utility model aims to solve at least one of the above-mentioned technical problems to a certain extent.

[0005] Therefore, the purpose of this utility model is to propose a self-priming pump with vibration reduction and sealing function, which has both vibration reduction and enhanced sealing functions.

[0006] To achieve the above objectives, this utility model discloses a self-priming pump with vibration damping and sealing functions, comprising: a middle cover 1, a rear cover 2 that engages with the middle cover, and a vibration damping device 3 disposed between the middle cover 1 and the rear cover 2; wherein, a water outlet 4 is provided on one side of the middle cover 1, and the vibration damping device 3 is an annular piece with one open end, the opening of the vibration damping device 3 facing the water outlet 4 of the self-priming pump.

[0007] In addition, the self-priming pump with vibration damping and sealing function according to the above-mentioned technical solution of this utility model may also have the following additional technical features: Optionally, a front cover 8 is also provided, which covers the middle cover 1 and is connected to the rear cover 2.

[0008] Optionally, the vibration damping device 3 is provided with a plurality of mounting holes 31; the rear cover 2 is provided with a plurality of connecting posts in the direction of the middle cover 1, and the corresponding middle cover 1 is provided with a plurality of connecting holes; the mounting holes 31 are fitted onto the connecting posts of the rear cover 2, and the connecting posts are inserted into the connecting holes of the middle cover 1.

[0009] Optionally, the rear cover 2 is connected to a shaft core 5, with an impeller 6 connected to one end of the shaft core 5 facing the middle cover 1, and a motor 7 connected to the other end of the shaft core 5 facing outward.

[0010] Optionally, the vibration damping device 3 is made of EPDM rubber.

[0011] The beneficial effects of this utility model are as follows: Significant vibration reduction: The EPDM rubber material has excellent elasticity and resilience, and combined with the annular buffer structure, it can effectively buffer the vibration transmission between the middle and rear covers, reducing the overall vibration intensity of the self-priming pump; Improved noise reduction performance: On the one hand, the vibration reduction device reduces noise caused by vibration; on the other hand, the annular seal reduces the turbulent noise generated by the high-speed water flow impacting the inner wall of the rear cover; Reliable sealing performance: The EPDM rubber material is resistant to fluid corrosion media, and the annular edge fits tightly with the sealing surfaces of the middle and rear covers, effectively preventing fluid leakage and avoiding pressure loss; Strong adaptability: The material has a wide temperature range (-40℃ to 150℃) and excellent aging resistance, adapting to temperature changes and environmental influences during long-term operation of the self-priming pump, extending its service life; Improved working efficiency: Reducing fluid leakage allows more fluid to flow along a predetermined path, directly improving the working efficiency of the self-priming pump. Attached Figure Description

[0012] Figure 1 This is a schematic cross-sectional view of the structure of a self-priming pump with vibration damping and sealing function provided in one embodiment of this utility model; Figure 2 This is a schematic cross-sectional view of the structure of a self-priming pump with vibration damping and sealing function provided in another embodiment of this utility model; Figure 3 This is a perspective view of a vibration damping device for a self-priming pump with vibration damping and sealing function, provided in another embodiment of this utility model; Figure 4 This is a perspective view of the outlet position of a self-priming pump with vibration damping and sealing function provided in another embodiment of this utility model.

[0013] Figure label: 1-Middle cover, 2-Rear cover, 3-Vibration damping device, 31-Assembly hole, 4-Outlet, 5-Shaft core, 6-Impeller, 7-Motor, 8-Front cover. Detailed Implementation

[0014] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or components / elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0015] The following describes a self-priming pump with vibration damping and sealing function according to an embodiment of the present invention, in conjunction with the accompanying drawings.

[0016] Figure 1 This is a schematic cross-sectional view of the structure of a self-priming pump with vibration damping and sealing function provided in one embodiment of this utility model; Figure 4 This is a perspective view of the outlet position of a self-priming pump with vibration damping and sealing function provided in another embodiment of this utility model. Figure 1 , 4 As shown, the self-priming pump with vibration damping and sealing function includes a middle cover 1, a rear cover 2 that is fastened to the middle cover, and a vibration damping device 3 disposed between the middle cover 1 and the rear cover 2; wherein, a water outlet 4 is provided on one side of the middle cover 1, and the vibration damping device 3 is an annular piece with one end open, and the opening of the vibration damping device 3 faces the water outlet 4 of the self-priming pump.

[0017] Specifically, a vibration damping device 3 is installed between the middle cover 1 and the rear cover 2 of a traditional self-priming pump. The vibration damping device 3 buffers the vibration transmission between the middle cover 1 and the rear cover 2 through elastic deformation, reducing the overall vibration intensity of the self-priming pump. Simultaneously, it enhances the sealing performance between the middle cover 1 and the rear cover 2, achieving noise reduction. The thickness of the vibration damping device 3 is designed according to the cover connection gap of the self-priming pump. Its upper and lower surfaces are in contact with the sealing surfaces of the middle cover 1 and the rear cover 2, and it is arranged in a ring along the edges of the middle cover 1 and the rear cover 2 to reduce vibration intensity, lower noise, and enhance sealing performance, thereby achieving the goal of reducing vibration and noise and improving the operating efficiency of the self-priming pump.

[0018] It should be noted that in the self-priming pump, the outlet 4 is on the side of the middle cover 1. In order to avoid the vibration damping device 3 blocking the outlet 4 and reducing the pump efficiency, the vibration damping device 3 should be an open annular plate with the opening facing the outlet 4.

[0019] The self-priming pump with vibration reduction and sealing function according to this utility model has a special device that combines vibration reduction, enhanced sealing and adaptability to the working environment of the whole pump, so as to reduce the vibration and noise of the self-priming pump, reduce fluid leakage in the middle cover, and improve the operating efficiency of the self-priming pump.

[0020] According to one embodiment of the present invention, a front cover 8 is also provided, which covers the middle cover 1 and is connected to the rear cover 2.

[0021] Specifically, such as Figure 1 As shown, the front cover 8 is used to cover and fix the middle cover 1, and is also fixedly connected to the rear cover 2, thereby ensuring the overall stability of the self-priming pump.

[0022] Figure 3This is a perspective view of a vibration damping device for a self-priming pump with vibration damping and sealing function according to another embodiment of the present invention. According to one embodiment of the present invention, as shown... Figure 3 As shown, the vibration damping device 3 is provided with a plurality of mounting holes 31; the rear cover 2 is provided with a plurality of connecting posts in the direction of the middle cover 1, and the corresponding middle cover 1 is provided with a plurality of connecting holes; the mounting holes 31 are fitted onto the connecting posts of the rear cover 2, and the connecting posts are inserted into the connecting holes of the middle cover 1.

[0023] Specifically, in this embodiment, the connecting post connecting the rear cover 2 and the middle cover 1 is set on the rear cover 2. During assembly, the mounting hole 31 of the vibration damping device 3 can be first fitted onto the connecting post to fix the position of the vibration damping device 3, and then the connecting post can be inserted into the connecting hole of the middle cover 1.

[0024] Figure 2 This is a schematic cross-sectional view of a self-priming pump with vibration damping and sealing function provided in another embodiment of the present invention. According to one embodiment of the present invention, as shown below... Figure 2 As shown, the rear cover 2 is connected to a shaft core 5, one end of which facing the middle cover 1 is connected to an impeller 6, and the other end of which facing outwards is connected to a motor 7.

[0025] Specifically, in this embodiment, the motor 7 is located on the outside of the rear cover 2, and the rear cover 2 can be designed with a motor mount to assist in fixing the motor 7. A shaft core hole is provided in the middle of the rear cover 2 for mounting the shaft core 5. The shaft core 5 is used to connect the motor 7 and the impeller 6 to achieve the transmission function.

[0026] According to one embodiment of the present invention, the vibration damping device 3 is made of EPDM rubber.

[0027] Specifically, ethylene propylene diene monomer (EPDM) rubber has excellent elasticity and resilience. Combined with the annular buffer structure, it can effectively buffer the vibration transmission between the middle and rear covers, reducing the overall vibration intensity of the self-priming pump. Furthermore, EPDM material is resistant to corrosive fluid media, and the annular edge fits tightly with the sealing surfaces of the middle and rear covers, effectively preventing fluid leakage and avoiding pressure loss. The material has a wide temperature range (-40℃ to 150℃) and excellent aging resistance, which can adapt to temperature changes and environmental influences during long-term operation of the self-priming pump, extending its service life.

[0028] The above embodiments are preferred implementations of this application. In addition, this application can be implemented in other ways. Any obvious substitutions without departing from the concept of this application are within the protection scope of this application.

Claims

1. A self-priming pump with vibration damping and sealing function, characterized in that, include: The middle cover (1), the rear cover (2) that is fastened to the middle cover, and the vibration damping device (3) disposed between the middle cover (1) and the rear cover (2); The middle cover (1) has an outlet (4) on one side, and the vibration damping device (3) is an annular piece with one end open, with the opening of the vibration damping device (3) facing the outlet (4) of the self-priming pump.

2. A self-priming pump with vibration damping and sealing function according to claim 1, characterized in that: It is also provided with a front cover (8) that covers the middle cover (1) and is connected to the rear cover (2).

3. A self-priming pump with vibration damping and sealing function according to claim 1, characterized in that: The vibration damping device (3) is provided with a number of assembly holes (31); the rear cover (2) is provided with a number of connecting posts in the direction of the middle cover (1), and the corresponding middle cover (1) is provided with a number of connecting holes; the assembly holes (31) are fitted onto the connecting posts of the rear cover (2), and the connecting posts are inserted into the connecting holes of the middle cover (1).

4. A self-priming pump with vibration damping and sealing function according to claim 1, characterized in that: The rear cover (2) is connected to a shaft (5), one end of which is connected to an impeller (6) facing the middle cover (1), and the other end of which is connected to a motor (7).

5. A self-priming pump with vibration damping and sealing function according to claim 1, characterized in that: The vibration damping device (3) is made of EPDM rubber.

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