Electric vacuum pump with damping seat

Abstract

The utility model discloses an electric vacuum pump with a damping seat, which comprises a support base, three groups of fixed side plates and four groups of electromagnetic buffer devices are symmetrically arranged on the side end face of the support base at equal intervals, and the electromagnetic buffer devices are respectively arranged at four corners of the upper end face of the support base. The buffering device can be effectively attached to the outer portion of the electric vacuum pump for buffering, so that the occupied area of equipment is small, the utilization efficiency of production space is improved, and meanwhile three buffering modes of elastic buffering of the buffering spring, an air spring structure of the permanent magnet and the guide sliding barrel and magnetic buffering of the permanent magnet and the electromagnet are achieved. Different working modes of the electric vacuum pump can be adapted according to requirements, and the buffering stability and adaptability of equipment to the electric vacuum pump during working are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pump equipment, in particular to an electric vacuum pump with a shock-absorbing seat. Background Art

[0002] An electric vacuum pump is a device that uses a rotating mechanism to extract gas from a space to form a vacuum. It uses a motor as a power source and compresses the gas through a mechanical device to achieve the purpose of extracting air. The motor drives the pump shaft and the roller to move eccentrically, and the moving blades are pressed against the inner arm of the housing by centrifugal force, thereby sealing the air chamber. At this time, the air between every two blades and the housing is compressed from the intake side to the exhaust side, and the eccentrically arranged pump shaft reduces the air chamber to compress the inhaled air.

[0003] For example, the utility model patent disclosed in the publication number CN217682286U is an electric vacuum pump with a shock-absorbing seat, including a base, the base is a U-shaped structure, shock-absorbing springs are evenly arranged on the bottom wall of the base, a support plate is arranged on the shock-absorbing spring, a vacuum pump is arranged on the support plate, and a pneumatic shock-absorbing buffer mechanism is arranged at the connection between the support plate and the base, and the pneumatic shock-absorbing buffer mechanism includes a shock-absorbing airbag, an air cylinder and a piston plate. The utility model belongs to the technical field of vacuum pumps, specifically refers to an electric vacuum pump with a shock-absorbing seat that can slow down vibrations, play a certain buffering role, and reduce the noise generated during vibration.

[0004] Although the above-mentioned device has certain buffering performance, the above-mentioned device uses a large number of springs for buffering. After a long period of buffering, the springs are prone to fatigue and bending, which in turn affects the efficiency of subsequent buffering and shock absorption. In addition, the above-mentioned base occupies too much space, greatly wasting the working space. Therefore, an electric vacuum pump with a shock-absorbing seat is urgently needed to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide an electric vacuum pump with a shock-absorbing seat to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: an electric vacuum pump with a shock-absorbing seat, comprising a support base, wherein the side end surface of the support base is symmetrically and equidistantly provided with three sets of fixed side plates,

[0007] Electromagnetic buffer devices, wherein the electromagnetic buffer devices are provided with four groups in total, and the electromagnetic buffer devices are respectively arranged at the four corners of the upper end surface of the support base;

[0008] A connecting device is slidably connected to the upper end surface of the electromagnetic buffer device, and an electric vacuum pump is arranged on the inner end surface of the connecting device, and a docking flange is fixedly arranged on the upper end surface of the electric vacuum pump.

[0009] Preferably, the connecting device includes a supporting guide seat, the upper end surface of the supporting guide seat is slidably engaged with two groups of docking seats, and three groups of spring retaining rings are equidistantly arranged on the lower end surface of the docking seat, sealing guide shafts are arranged at the four corners of the lower end surface of the supporting guide seat, and a buffer spring is arranged at the lower end surface of the supporting guide seat opposite to the sealing guide shaft, and a permanent magnet is arranged at the center of the lower end surface of the sealing guide shaft.

[0010] Preferably, the electromagnetic buffer device includes a guide slide cylinder fixedly arranged at the center of the upper end surface of the positioning base, and an electromagnet is arranged at the center of the lower end surface of the guide slide cylinder.

[0011] Preferably, the guide slide cylinder is made of aluminum alloy, and the material of the guide slide cylinder is iron-free, which can effectively improve the stability of the permanent magnet inside the guide slide cylinder.

[0012] Preferably, the permanent magnet is sealed and slidably connected to the inside of the guide slide, and the electromagnet is coaxially opposite to the bottom of the permanent magnet. The sealed sliding connection between the permanent magnet and the guide slide can form an air spring inside the guide slide, thereby improving the stability of the buffer.

[0013] Preferably, the spring retaining ring is fixedly connected to the inner wall of the support guide seat, and the bottom of the buffer spring is fixedly connected to the upper part of the guide slide cylinder. The spring retaining ring can provide sufficient elastic force for the docking seat for buffering, effectively improving the stability of subsequent lateral buffering of the electric vacuum pump.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model can effectively fit the outside of the electric vacuum pump for buffering, so that the equipment occupies less space and improves the utilization efficiency of the production space. At the same time, the elastic buffering of the buffer spring, the air spring structure of the permanent magnet and the guide slide, and the magnetic buffering of the permanent magnet and the electromagnet, three buffering modes, can adapt to different working modes of the electric vacuum pump according to needs, effectively improving the stability and adaptability of the equipment to the buffering of the electric vacuum pump when it is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a disassembled diagram of the main body of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the main body of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the connection device of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the electromagnetic buffer device of the utility model.

[0020] In the figure: 1- docking flange, 2- electric vacuum pump, 3- connecting device, 4- electromagnetic buffer device, 5- supporting base, 6- fixed side plate, 31- sealing guide shaft, 32- permanent magnet, 33- buffer spring, 34- supporting guide seat, 35- spring retaining ring, 36- docking seat, 41- guide slide, 42- electromagnet, 43- positioning base. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides an embodiment: an electric vacuum pump with a shock-absorbing seat, comprising a support base 5, and three sets of fixed side plates 6 are symmetrically and equidistantly arranged on the side end surface of the support base 5,

[0023] Electromagnetic buffer devices 4, there are four sets of electromagnetic buffer devices 4, and the electromagnetic buffer devices 4 are respectively arranged at the four corners of the upper end surface of the support base 5;

[0024] The connecting device 3 is slidably connected to the upper end surface of the electromagnetic buffer device 4, and an electric vacuum pump 2 is arranged on the inner end surface of the connecting device 3, and a docking flange 1 is fixedly arranged on the upper end surface of the electric vacuum pump 2.

[0025] The connecting device 3 includes a supporting guide seat 34, the upper end surface of the supporting guide seat 34 is slidably engaged with two groups of docking seats 36, and three groups of spring retaining rings 35 are equidistantly arranged on the lower end surface of the docking seats 36, and sealing guide shafts 31 are arranged at the four corners of the lower end surface of the supporting guide seat 34, and a buffer spring 33 is arranged at the lower end surface of the supporting guide seat 34 opposite to the sealing guide shaft 31, and a permanent magnet 32 ​​is arranged at the center of the lower end surface of the sealing guide shaft 31.

[0026] The electromagnetic buffer device 4 includes a positioning base 43 , at the center of the upper end surface of which a guide slide 41 is fixedly arranged, and at the center of the lower end surface of the guide slide 41 , an electromagnet 42 is arranged.

[0027] The guide slide 41 is made of aluminum alloy, and the material of the guide slide 41 is iron-free, which can effectively improve the stability of the permanent magnet 32 ​​inside the guide slide 41 .

[0028] The permanent magnet 32 ​​is sealed and slidably connected to the inside of the guide slide 41, and the electromagnet 42 is coaxially opposite to the bottom of the permanent magnet 32. The sealed sliding connection between the permanent magnet 32 ​​and the guide slide 41 can form an air spring inside the guide slide 41, thereby improving the stability of the buffer.

[0029] The spring retaining ring 35 is fixedly connected to the inner wall of the support guide seat 34, and the bottom of the buffer spring 33 is fixedly connected to the upper part of the guide slide 41. The spring retaining ring 35 can provide sufficient elastic force for the docking seat 36 for buffering, effectively improving the stability of subsequent lateral buffering of the electric vacuum pump 2.

[0030] Working principle: When in use, if the electric vacuum pump 2 generates vibration during compression, the docking seat 36 can buffer and filter the lateral vibration generated by the electric vacuum pump 2 through multiple sets of spring retaining rings 35, and then the support guide seat 34 can absorb the longitudinal vibration of the electric vacuum pump 2 and transmit it to the sealing guide shaft 31. When the electric vacuum pump 2 works under a lower working condition, the four sets of buffer springs 33 can initially buffer the longitudinal vibration generated by the support guide seat 34. At the same time, the air spring structure generated by the internal sealing of the permanent magnet 32 ​​and the guide slide 41 can perform secondary buffering on the permanent magnet 32. If the electric vacuum pump 2 is in a high-load working condition, the external power supply mechanism can power the electromagnet 42, and the electromagnet 42 can generate magnetic force. When the permanent magnet 32 ​​moves downward inside the guide slide 41, the electromagnet 42 can use magnetic force to buffer the permanent magnet 32 ​​in all directions, thereby improving the stability of the electric vacuum pump 2 when compressing air.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric vacuum pump with a shock-absorbing seat, comprising a support base (5), wherein the side end surface of the support base (5) is symmetrically and equidistantly provided with three sets of fixed side plates (6), characterized in that: Electromagnetic buffer devices (4), wherein four groups of the electromagnetic buffer devices (4) are provided, and the electromagnetic buffer devices (4) are respectively arranged at the four corners of the upper end surface of the support base (5); A connecting device (3) is slidably engaged with the upper end surface of the electromagnetic buffer device (4), and an electric vacuum pump (2) is arranged on the inner end surface of the connecting device (3), and a docking flange (1) is fixedly arranged on the upper end surface of the electric vacuum pump (2).

2. The electric vacuum pump with a shock-absorbing seat according to claim 1, characterized in that: The connecting device (3) comprises a support guide seat (34), the upper end surface of the support guide seat (34) is slidably engaged with two groups of docking seats (36), and three groups of spring retaining rings (35) are equidistantly arranged on the lower end surface of the docking seat (36), a sealing guide shaft (31) is arranged at the four corners of the lower end surface of the support guide seat (34), and a buffer spring (33) is arranged at the lower end surface of the support guide seat (34) directly opposite to the sealing guide shaft (31), and a permanent magnet (32) is arranged at the center of the lower end surface of the sealing guide shaft (31).

3. The electric vacuum pump with a shock-absorbing seat according to claim 2, characterized in that: The electromagnetic buffer device (4) comprises a positioning base (43) on which a guide slide cylinder (41) is fixedly arranged at the center of the upper end surface, and an electromagnet (42) is arranged at the center of the lower end surface of the guide slide cylinder (41).

4. The electric vacuum pump with a shock-absorbing seat according to claim 3, characterized in that: The guide slide cylinder (41) is made of aluminum alloy.

5. The electric vacuum pump with a shock-absorbing seat according to claim 3, characterized in that: The permanent magnet (32) is sealed and slidably connected to the inside of the guide slide cylinder (41), and the electromagnet (42) is coaxially opposite to the bottom of the permanent magnet (32).

6. The electric vacuum pump with a shock-absorbing seat according to claim 3, characterized in that: The spring clamp (35) is fixedly connected to the inner wall of the support guide seat (34), and the bottom of the buffer spring (33) is fixedly connected to the upper part of the guide slide cylinder (41).

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