CN214247674U

CN214247674U - Novel slide valve type vacuum pump

Info

Publication number: CN214247674U
Application number: CN202023206590.3U
Authority: CN
Inventors: 彭雨轩
Original assignee: Chengdu Youzhen Technology Co ltd
Current assignee: Chengdu Youzhen Technology Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-09-21
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses a novel slide valve formula vacuum pump relates to vacuum pump technical field, including the pump body, the eccentric wheel is installed through the drive shaft in the inside of the pump body, and the surface mounting of eccentric wheel has the slide valve ring, and the internally mounted of the pump body has the guide rail, and the slide valve rod that runs through to the guide rail inside is installed at the top of slide valve ring. The utility model discloses a be provided with the slider, the spout, dust removal net and spring, when connecting the intake pipe, because the intake pipe will extrude dust removal net, make dust removal net drive slider extrusion spring and slide downwards in the spout, intake-tube connection accomplishes the back, make dust removal net can effectually absorb the granule impurity in the air, particle impurity in order to avoid the air is together extracted to the pump body inside and influence the performance of the pump body, thereby make the spring will produce reverse power promotion slider upwards sliding in the spout under receiving the extruded condition when dismantling the intake pipe, alright will remove dust the net jack-up, alright clear up or change dust removal net afterwards.

Description

Novel slide valve type vacuum pump

Technical Field

The utility model relates to a vacuum pump technical field specifically is a novel slide valve formula vacuum pump.

Background

The slide valve type vacuum pump is one of vacuum equipment for pumping general gas or containing a small amount of condensable steam gas, is used for vacuum smelting, vacuum drying, vacuum impregnation and other vacuum operations, can be independently used, can also be used as a backing pump of other high vacuum pumps, but is not used for pumping from one container to another container to be used as a conveying pump; the method is widely applied to the industries of aerospace, aviation, atom, petroleum, chemical engineering, pharmacy, electrician, ceramics, smelting, new materials, vacuum heat treatment, vacuum coating and the like.

According to chinese patent publication No. CN202170870U, a novel slide valve type vacuum pump is disclosed, which comprises: the novel slide valve type vacuum pump is characterized by comprising a pump body, a pump shaft, an eccentric wheel, a slide valve ring, a slide valve rod, an exhaust valve, a semicircular slide valve guide rail, an air inlet pipe and a condenser.

The condenser is arranged at the front section of the air inlet pipe, and a large amount of water vapor in the vacuum process equipment is captured into water by the condenser, so that the quantity of the water vapor entering the vacuum pump is reduced, and the pollution degree of pump oil is reduced; however, in the process of extracting air in the device, because of a large amount of particle dust impurities contained in the air, the particle dust impurities are easy to accumulate on the motor and the transmission structure when being extracted into the pump body, so that certain influence is easily caused on the service performance of the pump body; meanwhile, the device generates a large amount of heat due to the running-in of the motor, the sliding valve ring and the inner wall of the pump body during operation, and the heat is difficult to dissipate, so that the working efficiency of the vacuum pump is easily reduced after long-time high-temperature operation.

Disclosure of Invention

The utility model aims to provide a: in order to solve the problem that the service performance of the body is influenced when the air is extracted and a large amount of heat generated during working is easily reduced by taking particle impurities into the pump body, a novel slide valve type vacuum pump is provided.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel slide valve formula vacuum pump, includes the pump body, the eccentric wheel is installed through the drive shaft in the inside of the pump body, the surface mounting of eccentric wheel has the slide valve ring, the internally mounted of the pump body has the guide rail, the slide valve pole that runs through to the guide rail is installed at the top of slide valve ring, air inlet and spout have been seted up respectively at the top of the pump body, slider and spring are installed respectively to the inside of spout, install the dust removal net between the slider, one side of the pump body is fixed with the fixed plate, the inlet has been seted up to one side of the pump body, the internally mounted of inlet has the card stopper, the bottom of fixed plate is connected with the stay cord that extends to the card stopper top, the cavity has been seted up to the inner wall of the pump body, the fluid-discharge tube is installed to the bottom of cavity, the surface mounting of fluid-discharge tube has the valve.

Preferably, the dust removal net is connected with the sliding groove in a sliding mode through a sliding block, and the dust removal net is made of stainless steel materials.

Preferably, the sliding block is positioned right above the spring, and the spring is in contact with the sliding block.

Preferably, the clamping plug is matched with the liquid inlet, and cooling liquid is injected into the cavity.

Preferably, the fixing plate is located above the clamping plug, and the pull rope is made of elastic materials.

Preferably, the other side of the pump body is provided with an exhaust port, an exhaust valve is arranged in the exhaust port, and the exhaust port is located right above the cavity.

Preferably, the slide valve ring is eccentrically rotated with the driving shaft by an eccentric wheel, and the diameter of the slide valve ring is larger than that of the guide rail.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a be provided with the slider, the spout, dust removal net and spring, when connecting the intake pipe through the air inlet, because the intake pipe will extrude dust removal net, make dust removal net drive slider extrusion spring and slide downwards in the spout, thereby after connecting the completion to the intake pipe, when extracting the air to required position, make dust removal net can effectually absorb the granule impurity in the air, in order to avoid granule impurity in the air to be extracted to the pump body inside together and influence the performance of the pump body, after filtering and absorbing the granule impurity through dust removal net, alright dismantle the intake pipe, make the spring will produce reverse power under the extruded condition and promote the slider to slide upwards in the spout, alright jack up dust removal net, alright clear up dust removal net or change afterwards;

2. the utility model discloses a be provided with the fixed plate, the stay cord, the card stopper, the inlet, the cavity, fluid-discharge tube and valve, at first staff's accessible pulling stay cord, make the stay cord pull the card stopper and take out from the inlet, thereby make the card stopper open the inlet, the staff alright pour into the coolant liquid into to the inside of cavity into through the inlet afterwards, pour into the coolant liquid of capacity after alright with the card stopper grafting in the inlet and then seal the cavity, make the heat accessible coolant liquid that this pump body produced when carrying out the during operation carry out effectual absorption, it is difficult to give off to avoid this pump body to carry out a large amount of heats that the back produced after working for a long time, and then the effectual work efficiency who promotes this pump body, after work is accomplished afterwards staff alright open the valve, thereby make the coolant liquid in the cavity discharge through the fluid-discharge tube and change.

Drawings

FIG. 1 is a front structural view of the pump body of the present invention;

FIG. 2 is a schematic view of a front cross-sectional structure of the pump body of the present invention;

fig. 3 is an enlarged view of a point a in fig. 2 according to the present invention;

fig. 4 is an enlarged view of the point B in fig. 2 according to the present invention.

In the figure: 1. a pump body; 2. a drive shaft; 3. an eccentric wheel; 4. a spool ring; 5. a cavity; 6. an exhaust port; 7. an exhaust valve; 8. a guide rail; 9. a spool rod; 10. an air inlet; 11. a slider; 12. a dust removal net; 13. a fixing plate; 14. pulling a rope; 15. blocking; 16. a liquid discharge pipe; 17. a valve; 18. a liquid inlet; 19. a chute; 20. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention according to its overall structure.

Referring to fig. 1-4, a novel slide valve type vacuum pump includes a pump body 1, a driving shaft 2, an eccentric wheel 3, a slide valve ring 4, a cavity 5, an exhaust port 6, an exhaust valve 7, a guide rail 8, a slide valve rod 9, an air inlet 10, a slide block 11, a dust removal net 12, a fixing plate 13, a pull rope 14, a clamping plug 15, a liquid discharge pipe 16, a valve 17, a liquid inlet 18, a slide groove 19 and a spring 20; eccentric wheel 3 is installed through drive shaft 2 in the inside of the pump body 1, eccentric wheel 3's surface mounting has slide valve ring 4, the internally mounted of the pump body 1 has guide rail 8, slide valve rod 9 that runs through to the inside of guide rail 8 is installed at the top of slide valve ring 4, air inlet 10 and spout 19 have been seted up respectively at the top of the pump body 1, slider 11 and spring 20 are installed respectively to the inside of spout 19, install dust removal net 12 between the slider 11, one side of the pump body 1 is fixed with fixed plate 13, inlet 18 has been seted up to one side of the pump body 1, the internally mounted of inlet 18 has the card stopper 15, the bottom of fixed plate 13 is connected with stay cord 14 that extends to card stopper 15 top, cavity 5 has been seted up to the inner wall of the pump body 1, fluid-discharge tube 16 is installed to the bottom of cavity 5, the surface mounting of fluid-discharge tube 16 has valve 17.

Please refer to fig. 2-3, the dust removing net 12 is connected with the sliding chute 19 by the sliding block 11 in a sliding manner, and the dust removing net 12 is made of stainless steel, so that the dust removing net 12 can slide in the sliding chute 19 through the sliding block 11 to realize the assembly and disassembly of the dust removing net 12, and the service life of the dust removing net 12 can be effectively prolonged by the stainless steel; the slide 11 is located right above the spring 20, and the spring 20 is in contact with the slide 11, so that the slide 11 presses the spring 20 and the spring 20 can jack the slide 11.

Please refer to fig. 1-3, the clamping plug 15 is adapted to the liquid inlet 18, and the cooling liquid is filled in the cavity 5, so that the clamping plug 15 can close or open the liquid inlet 18, and the cooling liquid can be filled in the cavity 5 through the liquid inlet 18 to cool the pump body 1; the fixing plate 13 is located above the locking plug 15, and the pulling rope 14 is made of elastic material, so that the locking plug 15 can be pulled through the pulling rope 14 made of elastic material.

Please refer to fig. 2, the other side of the pump body 1 is provided with an exhaust port 6, an exhaust valve 7 is installed inside the exhaust port 6, the exhaust port 6 is located right above the cavity 5, so that the extracted air can be exhausted through the exhaust port 6, and the exhaust valve 7 can open or close the exhaust port 6; the slide valve ring 4 eccentrically rotates with the driving shaft 2 through the eccentric wheel 3, and the diameter of the slide valve ring 4 is larger than that of the guide rail 8, so that the driving shaft 2 rotates to drive the eccentric wheel 3 to rotate, and the eccentric wheel 3 drives the slide valve ring 4 to rotate.

The working principle is as follows: firstly, when the pump body 1 works, the driving shaft 2 drives the eccentric wheel 3 to rotate, so that the eccentric wheel 3 drives the slide valve ring 4 to rotate, the slide valve ring 4 drives the slide valve rod 9 to move up and down and drives the guide rail 8 to rotate, so as to extract air, meanwhile, when the air inlet pipe is connected through the air inlet 10, the air inlet pipe extrudes the dust removing net 12, so that the dust removing net 12 drives the slide block 11 to extrude the spring 20 to slide downwards in the chute 19, so that after the air inlet pipe is connected, when air is extracted from a required position, the dust removing net 12 can effectively absorb particle impurities in the air, so as to prevent the particle impurities in the air from being extracted into the pump body 1 together to influence the service performance of the pump body 1, after the particle impurities are filtered and absorbed through the dust removing net 12, the air inlet pipe can be detached, so that the spring 20 will generate reverse force under the condition of being squeezed to push the sliding block 11 to slide upwards in the sliding groove 19, so as to jack up the dust removal net 12, and then the dust removal net 12 can be cleaned or replaced, meanwhile, because the pump body 1 will generate a large amount of heat during operation, at this time, a worker can pull the pull rope 14 to pull the clamping plug 15 to take out the clamping plug 15 from the liquid inlet 18, so that the clamping plug 15 opens the liquid inlet 18, then the worker can inject cooling liquid into the cavity 5 through the liquid inlet 18, and after sufficient cooling liquid is injected, the clamping plug 15 can be inserted into the liquid inlet 18 to further seal the cavity 5, so that the heat generated during operation of the pump body 1 can be effectively absorbed through the cooling liquid, so as to avoid that a large amount of heat generated after the pump body 1 operates for a long time is difficult to dissipate, and further effectively improve the working efficiency of the pump body 1, after the work is completed, the operator then opens the valve 17, so that the cooling liquid in the cavity 5 is discharged through the discharge pipe 16 for replacement.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A novel slide valve type vacuum pump comprises a pump body (1), and is characterized in that: the vacuum pump is characterized in that the eccentric wheel (3) is installed in the pump body (1) through the driving shaft (2), a slide valve ring (4) is installed on the outer surface of the eccentric wheel (3), a guide rail (8) is installed in the pump body (1), a slide valve rod (9) penetrating into the guide rail (8) is installed at the top of the slide valve ring (4), an air inlet (10) and a sliding groove (19) are respectively formed in the top of the pump body (1), a sliding block (11) and a spring (20) are respectively installed in the sliding groove (19), a dust removal net (12) is installed between the sliding blocks (11), a fixing plate (13) is fixed on one side of the pump body (1), a liquid inlet (18) is formed in one side of the pump body (1), a clamping plug (15) is installed in the liquid inlet (18), a pull rope (14) extending to the top of the clamping plug (15) is connected to the bottom of the fixing plate (13), the pump is characterized in that a cavity (5) is formed in the inner wall of the pump body (1), a liquid discharge pipe (16) is installed at the bottom of the cavity (5), and a valve (17) is installed on the outer surface of the liquid discharge pipe (16).

2. A novel slide valve vacuum pump as claimed in claim 1, wherein: the dust removal net (12) is connected with the sliding groove (19) in a sliding mode through the sliding block (11), and the dust removal net (12) is made of stainless steel materials.

3. A novel slide valve vacuum pump as claimed in claim 1, wherein: the sliding block (11) is located right above the spring (20), and the spring (20) is in contact with the sliding block (11).

4. A novel slide valve vacuum pump as claimed in claim 1, wherein: the clamping plug (15) is matched with the liquid inlet (18), and cooling liquid is injected into the cavity (5).

5. A novel slide valve vacuum pump as claimed in claim 1, wherein: the fixing plate (13) is positioned above the clamping plug (15), and the pull rope (14) is made of elastic materials.

6. A novel slide valve vacuum pump as claimed in claim 1, wherein: an exhaust port (6) is formed in the other side of the pump body (1), an exhaust valve (7) is installed inside the exhaust port (6), and the exhaust port (6) is located right above the cavity (5).

7. A novel slide valve vacuum pump as claimed in claim 1, wherein: the slide valve ring (4) eccentrically rotates with the driving shaft (2) through the eccentric wheel (3), and the diameter of the slide valve ring (4) is larger than that of the guide rail (8).