CN220668555U - Vacuum pump pressure release structure - Google Patents

Abstract

The utility model discloses a vacuum pump pressure relief structure which comprises a locking module and a pressure relief module, wherein the locking module comprises a pressure relief valve, a valve rod in threaded connection with the pressure relief valve and a piston rod penetrating through one end of the pressure relief valve in a sliding mode, and the pressure relief module comprises an arc rod connected with the piston rod, a ring frame sleeved on the outer side of the pressure relief valve, a toothed ring movably sleeved on the outer side of the ring frame and a pressing plate connected with the toothed ring. According to the utility model, the pressure release valve is connected with the external vacuum pump, then when the internal pressure of the vacuum pump is larger, the piston rod moves outwards, then the piston rod contacts the tact switch, the tact switch starts the motor, then the motor rotates the toothed ring and the pressing plate through the gear, then the pressing plate presses the arc rod, so that the piston rod moves towards the inside of the pressure release valve, then the valve rod can flexibly move, a worker rotates the valve rod, the pressure release valve can release force without manual pressure release, and the use safety is improved.

Description

Vacuum pump pressure release structure

Technical Field

The utility model relates to the technical field of vacuum pumps, in particular to a vacuum pump pressure relief structure.

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. Generally, vacuum pumps are devices that improve, create, and maintain a vacuum in an enclosed space by various methods.

The existing decompression structure of the vacuum pump lacks an anti-false touch structure, so that the use of the vacuum pump has great hidden trouble.

Disclosure of Invention

The present utility model aims to solve one of the technical problems existing in the prior art or related technologies.

The technical scheme adopted by the utility model is as follows:

the utility model provides a vacuum pump pressure release structure, includes locking module and pressure release module, locking module include the relief valve, with relief valve threaded connection's valve rod, slip run through in the piston rod of relief valve one end, the pressure release module include with the arc pole that the piston rod is connected, cup joint in the link in the relief valve outside, the activity cup joint in the ring outside the ring, with the clamp plate that the ring is connected, with the motor that the relief valve top is connected, with motor output shaft's gear, with the plate body that the relief valve is connected, with the tact switch of plate body connection, motor and tact switch electric connection.

Through adopting above-mentioned technical scheme, the relief valve is connected with outside vacuum pump, then when vacuum pump internal pressure is great, the piston rod can outwards remove, then the piston rod contacts the tact switch, tact switch starts the motor, then the motor makes ring gear, clamp plate rotate through the gear, then clamp plate extrusion arc pole, make the piston rod to the inside removal of relief valve, then the valve rod can nimble motion, the staff rotates the valve rod, can make the relief valve let out the power, exempt from artifical pressure release, safety in utilization has been improved.

The present utility model may be further configured in a preferred example to: the piston rod is provided with a T-shape, and the outer end of the piston rod extends to the inside of the valve rod.

Through adopting above-mentioned technical scheme, adopt this structural design, the valve rod is spacing by the piston rod when idle, effectively prevents that the valve rod from being touched by mistake.

The present utility model may be further configured in a preferred example to: the ring frame is provided with an annular groove suitable for movably clamping the toothed ring, and the toothed ring and the gear are both made of metal materials.

By adopting the technical scheme, the annular groove is arranged, so that the falling probability of the toothed ring can be reduced.

The present utility model may be further configured in a preferred example to: the inner side of the pressing plate is provided with an inclined plane.

By adopting the technical scheme, the arc rod can be pressed and moved by adopting the structural design.

The present utility model may be further configured in a preferred example to: the plate body sets up to L shape to plate body corner sets up to the cambered surface.

By adopting the technical scheme, the structural design is adopted, so that the attractiveness of the device is ensured.

The present utility model may be further configured in a preferred example to: the tact switch is transversely coaxial with the piston rod, and the outer end of the piston rod is attached to the inner side of the tact switch.

Through adopting above-mentioned technical scheme, adopt this structural design, guarantee that the piston rod can extrude the tact switch, make the motor work smoothly.

By adopting the technical scheme, the beneficial effects obtained by the utility model are as follows:

1. according to the utility model, the pressure release valve is connected with the external vacuum pump, then when the internal pressure of the vacuum pump is larger, the piston rod moves outwards, then the piston rod contacts the tact switch, the tact switch starts the motor, then the motor rotates the toothed ring and the pressing plate through the gear, then the pressing plate presses the arc rod, so that the piston rod moves towards the inside of the pressure release valve, then the valve rod can flexibly move, a worker rotates the valve rod, the pressure release valve can release force without manual pressure release, and the use safety is improved.

Drawings

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of a locking module according to the present utility model;

fig. 3 is a schematic diagram of a pressure relief module according to the present utility model.

Reference numerals:

100. a locking module; 110. a pressure release valve; 120. a valve stem; 130. a piston rod;

200. a pressure relief module; 210. an arc rod; 220. a ring frame; 230. a toothed ring; 240. a pressing plate; 250. a motor; 260. a gear; 270. a plate body; 280. the switch is tapped.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

It is to be understood that this description is merely exemplary in nature and is not intended to limit the scope of the present utility model.

A relief structure for a vacuum pump according to some embodiments of the present utility model is described below with reference to the accompanying drawings.

Embodiment one:

1-3, the vacuum pump pressure release structure provided by the utility model comprises a locking module 100 and a pressure release module 200, wherein the locking module 100 comprises a pressure release valve 110, a valve rod 120 in threaded connection with the pressure release valve 110, and a piston rod 130 penetrating through one end of the pressure release valve 110 in a sliding manner;

the pressure relief module 200 comprises an arc rod 210 connected with the piston rod 130, a ring frame 220 sleeved on the outer side of the pressure relief valve 110, a toothed ring 230 movably sleeved on the outer side of the ring frame 220, a pressing plate 240 connected with the toothed ring 230, a motor 250 connected with the top of the pressure relief valve 110, a gear 260 connected with an output shaft of the motor 250, a plate 270 connected with the pressure relief valve 110, and a tact switch 280 connected with the plate 270, wherein the motor 250 is electrically connected with the tact switch 280.

Further, the piston rod 130 is provided with a T-shape, and the outer end of the piston rod 130 extends into the valve rod 120, and by adopting the structural design, when the valve rod 120 is idle, the valve rod 120 is limited by the piston rod 130, so that the valve rod 120 is effectively prevented from being touched by mistake.

Further, the inner side of the pressing plate 240 is provided with an inclined surface, and with this structural design, the arc rod 210 is ensured to be pressed and moved.

Further, the tact switch 280 is transversely coaxial with the piston rod 130, the outer end of the piston rod 130 is attached to the inner side of the tact switch 280, and by adopting the structural design, the piston rod 130 is ensured to be capable of being extruded to the tact switch 280, so that the motor 250 can work smoothly.

Embodiment two:

referring to fig. 1-3, on the basis of the first embodiment, an annular groove suitable for movably clamping the toothed ring 230 is formed on the outer side of the ring frame 220, both the toothed ring 230 and the gear 260 are made of metal materials, and the annular groove is formed, so that the falling probability of the toothed ring 230 can be reduced.

Embodiment III:

as shown in fig. 1-3, in the above embodiment, the plate 270 is configured in an L shape, and the corners of the plate 270 are configured as arc surfaces, so that the aesthetic property of the device is ensured by adopting the structural design.

The working principle and the using flow of the utility model are as follows: in the initial state, the pressure release valve 110 is connected with an external vacuum pump, then when the internal pressure of the vacuum pump is large, the piston rod 130 moves outwards, then the piston rod 130 contacts the tact switch 280, the tact switch 280 starts the motor 250, then the motor 250 rotates the toothed ring 230 and the pressing plate 240 through the gear 260, then the pressing plate 240 presses the arc rod 210 to enable the piston rod 130 to move towards the inside of the pressure release valve 110, then the valve rod 120 can flexibly move, and a worker rotates the valve rod 120, so that the pressure release valve 110 can release force.

In the present utility model, the term "plurality" means two or more, unless explicitly defined otherwise. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It will be understood that when an element is referred to as being "mounted," "secured" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims (6)

1. A vacuum pump pressure relief structure, comprising:

the locking module (100) comprises a pressure release valve (110), a valve rod (120) in threaded connection with the pressure release valve (110) and a piston rod (130) penetrating through one end of the pressure release valve (110) in a sliding manner;

the pressure relief module (200) include with arc pole (210) that piston rod (130) is connected, cup joint in ring frame (220) in the relief valve (110) outside, the activity cup joint in ring gear (230) in the ring frame (220) outside, with clamp plate (240) that ring gear (230) are connected, with motor (250) that relief valve (110) top is connected, with motor (250) output shaft's gear (260), with plate body (270) that relief valve (110) are connected, with dab switch (280) that plate body (270) are connected, motor (250) and dab switch (280) electric connection.

2. A vacuum pump pressure relief structure according to claim 1, wherein the piston rod (130) is provided in a T-shape, and the outer end of the piston rod (130) extends into the valve stem (120).

3. The vacuum pump pressure relief structure according to claim 1, wherein an annular groove suitable for movable clamping of the toothed ring (230) is formed in the outer side of the ring frame (220), and both the toothed ring (230) and the gear (260) are made of metal materials.

4. A vacuum pump pressure relief structure according to claim 1, wherein the inside of the pressure plate (240) is provided as a bevel.

5. A vacuum pump pressure relief structure according to claim 1, wherein the plate body (270) is provided in an L-shape, and wherein the corners of the plate body (270) are provided as cambered surfaces.

6. A vacuum pump pressure relief structure according to claim 1, wherein said tact switch (280) is transversely coaxial with the piston rod (130), and the outer end of said piston rod (130) is attached to the inside of the tact switch (280).