CN219639015U - Anti-suck-back structure of electronic vacuum pump - Google Patents

Abstract

The utility model relates to the technical field of anti-suck-back of a vacuum pump, and discloses an anti-suck-back structure of an electronic vacuum pump, which comprises a device main body, an exhaust pipe and a bottom plate, wherein most of the device main body is provided with the bottom plate, the top end of the device main body is provided with the exhaust pipe, a check valve is arranged on the exhaust pipe, an exhaust panel is arranged in the check valve, an exhaust hole is formed in the exhaust panel, a sealing plug is arranged in the check valve, a first spring is arranged on the sealing plug, one side of the first spring is fixedly connected with the exhaust hole, and in actual use, the problems that the air volume of suck-back is large and the like easily caused by that the pressure of air in a conduit in the device is smaller than the pressure of external air are solved.

Description

Anti-suck-back structure of electronic vacuum pump

Technical Field

The utility model relates to the technical field of anti-suck-back of vacuum pumps, in particular to an anti-suck-back structure of an electronic vacuum pump.

Background

Vacuum pumps refer to devices or apparatus that draw air from a container being evacuated using mechanical, physical, chemical, or physicochemical means to obtain a vacuum. Conventionally, vacuum pumps are devices for improving, generating and maintaining vacuum in a certain closed space by various methods, and they can be basically classified into two types, i.e., a gas trapping pump and a gas transporting pump, according to the working principle of the vacuum pump. The vacuum pump is widely used in industries such as metallurgy, chemical industry, food, electronic coating and the like, most of the vacuum pumps in the market at present are not provided with a reverse suction prevention device, and the pressure of gas in a conduit of the device is smaller than that of external gas, so that the reverse suction air volume is larger easily. Accordingly, the present utility model has been made in view of the above circumstances, and an object of the present utility model is to provide a structure for preventing suck-back of an electronic vacuum pump, which is more practical.

Disclosure of Invention

In order to overcome the above-mentioned drawbacks of the prior art, the present utility model provides a structure for preventing suck-back of an electronic vacuum pump, so as to solve the above-mentioned problems in the prior art.

The utility model provides the following technical scheme: the utility model provides an electronic vacuum pump prevents structure of inhaling backward, includes device main part, blast pipe and bottom plate, the most of device main part is provided with the bottom plate, the top of device main part is provided with the blast pipe, be provided with the check valve on the blast pipe, the internally mounted of check valve has the exhaust panel, exhaust hole has been seted up on the exhaust panel, install the sealing plug in the check valve, install first spring on the sealing plug, and one side and the exhaust hole fixed connection of first spring, in actual use, through the setting of above-mentioned structure, solved because the pressure of the interior gaseous pressure of pipe is less than the pressure of external gas in the device, lead to the great scheduling problem of back-draft air volume easily, the operation is provided with the check valve on the blast pipe, is provided with exhaust panel, exhaust hole and sealing plug respectively in the inside of check valve, can make the gas only one-way discharge, avoid the air to inhale backward to lead to vacuum pump effect relatively poor.

Furthermore, the top and the bottom of the check valve are provided with sliding grooves, the inside of each sliding groove is provided with a sliding block in a sliding mode, one side of each sliding block is fixedly connected with the outer surface of the sealing plug, and in actual use, the device has a guiding effect through the arrangement of the structure, and the stability of the device is improved.

Furthermore, the sliding blocks are provided with ball grooves, and the ball bodies are arranged in the ball grooves.

Furthermore, one side of the sealing plug is provided with a sealing rubber ring, and in actual use, the sealing performance of the sealing plug can be improved through the arrangement of the structure.

Further, the bottom of bottom plate is provided with the base, evenly install a plurality of second springs on the base, and the top of second spring all with the bottom fixed connection of bottom plate, in the in-service use, through the setting of above-mentioned structure, can play the shock attenuation, the effect of buffering.

Further, the guide way has been seted up on the bottom plate, the internally mounted of guide way has the guide bar, and the bottom and the base fixed connection of guide bar, in the in-service use, through the setting of above-mentioned structure, can make base and second spring play the effect of direction when the shock attenuation, avoid the spring to take place to deflect, reduce the stability of its device.

The utility model has the technical effects and advantages that:

1. the utility model solves the problems of larger back suction air volume and the like easily caused by the fact that the pressure of the air in the guide pipe in the device is smaller than the pressure of the external air by adopting the design, and the utility model specifically operates that the check valve is arranged on the exhaust pipe, and the exhaust panel, the exhaust hole and the sealing plug are respectively arranged in the check valve, so that the air can be only discharged in one direction, and the air is prevented from being sucked back, thereby leading to poor vacuum pump effect.

2. The utility model adopts the design that the base and the second spring play a role in guiding while damping by arranging the guide groove and the guide rod, thereby avoiding the deflection of the spring and reducing the stability of the device.

Drawings

Fig. 1 is a schematic perspective view of a first structure of the present utility model.

Fig. 2 is a schematic perspective view of a second structure of the present utility model.

Fig. 3 is a schematic perspective view of a third structure of the present utility model.

Fig. 4 is a schematic perspective view of the exhaust pipe structure of the present utility model.

Fig. 5 is a schematic perspective view of a ball structure according to the present utility model.

The reference numerals are: a device main body (100), a device main body; an exhaust pipe (110), an exhaust pipe; a bottom plate (111), a bottom plate; a check valve (112) and a check valve; an exhaust panel (113), an exhaust panel; an exhaust hole (114) and an exhaust hole; a sealing plug (115), a sealing plug; a first spring (116), a first spring; a chute (117), a chute; a slider (118), a slider; a ball groove (119) and a ball groove; a ball body (120), a ball body; a base (121), a base; a second spring (122), a second spring; a guide groove (123) and a guide groove; a guide rod (124) and a guide rod.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

Embodiment one: the utility model provides a suck-back prevention structure of an electronic vacuum pump, which comprises a device main body 100, an exhaust pipe 110 and a bottom plate 111, wherein the bottom plate 111 is mostly arranged on the device main body 100, the exhaust pipe 110 is arranged at the top end of the device main body 100, a check valve 112 is arranged on the exhaust pipe 110, an exhaust panel 113 is arranged in the check valve 112, an exhaust hole 114 is formed in the exhaust panel 113, a sealing plug 115 is arranged in the check valve 112, a first spring 116 is arranged on the sealing plug 115, and one side of the first spring 116 is fixedly connected with the exhaust hole 114.

In actual use, through the arrangement of the structure, the problems that the pressure of the gas in the guide pipe in the device is smaller than that of the external gas, the volume of the sucked air is large and the like are easily caused are solved.

Embodiment two:

the second embodiment differs from the first embodiment in that: the top and the bottom of check valve 112 all have seted up spout 117, the inside of spout 117 slidable mounting has slider 118, and one side of slider 118 all is connected with the surface fixed of sealing plug 115, all set up ball groove 119 on the slider 118, ball body 120 is all installed to the inside in ball groove 119, one side of sealing plug 115 is provided with sealed rubber ring, the bottom of bottom plate 111 is provided with base 121, evenly install a plurality of second springs 122 on the base 121, and the top of second spring 122 all is connected with the bottom of bottom plate 111 fixedly, guide slot 123 has been seted up on the bottom plate 111, the internally mounted of guide slot 123 has guide bar 124, and the bottom and the base 121 fixed connection of guide bar 124, in the in-service use, through the setting of guide slot 123 and guide bar 124 structure, can make base 121 and second spring 122 play the effect of direction in the shock attenuation, avoid the spring to take place the deflection, reduce the stability of its device.

The last points to be described are: first, in the description of the present utility model, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

finally: the foregoing is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the utility model, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present utility model.

Claims (6)

1. The utility model provides an electronic vacuum pump prevents suck-back structure, includes device main part (100), blast pipe (110) and bottom plate (111), most of device main part (100) are provided with bottom plate (111), the top of device main part (100) is provided with blast pipe (110), a serial communication port, be provided with check valve (112) on blast pipe (110), internally mounted of check valve (112) has exhaust panel (113), exhaust hole (114) have been seted up on exhaust panel (113), install sealing plug (115) in check valve (112), install first spring (116) on sealing plug (115), and one side and exhaust hole (114) fixed connection of first spring (116).

2. The suck-back prevention structure of an electronic vacuum pump according to claim 1, wherein: the top and bottom of the check valve (112) are provided with sliding grooves (117), sliding blocks (118) are slidably arranged in the sliding grooves (117), and one sides of the sliding blocks (118) are fixedly connected with the outer surface of the sealing plug (115).

3. The suck-back prevention structure of an electronic vacuum pump according to claim 2, wherein: the sliding blocks (118) are provided with ball grooves (119), and ball bodies (120) are arranged in the ball grooves (119).

4. The suck-back prevention structure of an electronic vacuum pump according to claim 1, wherein: one side of the sealing plug (115) is provided with a sealing rubber ring.

5. The suck-back prevention structure of an electronic vacuum pump according to claim 1, wherein: the bottom of bottom plate (111) is provided with base (121), evenly install a plurality of second springs (122) on base (121), and the top of second spring (122) all is connected with the bottom fixed of bottom plate (111).

6. The suck-back prevention structure of an electronic vacuum pump according to claim 1, wherein: the bottom plate (111) is provided with a guide groove (123), a guide rod (124) is arranged in the guide groove (123), and the bottom end of the guide rod (124) is fixedly connected with the base (121).