CN210344461U

CN210344461U - Dust keeper of vacuum reversing valve

Info

Publication number: CN210344461U
Application number: CN201920582699.5U
Authority: CN
Inventors: 张少龙; 李兰兰; 周鑫浩
Original assignee: Hefei Hante Intelligent Equipment Co Ltd
Current assignee: Hefei Hante Intelligent Equipment Co Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-04-17
Anticipated expiration: 2029-04-25

Abstract

The utility model discloses a dust-proof device of a vacuum reversing valve, which comprises the vacuum reversing valve and a cylinder used for driving the vacuum reversing valve, wherein the dust-proof device is arranged at the periphery of the vacuum reversing valve and comprises an upper end cover, a lower end cover and a dust-proof shell which is penetrated through by two ends, and the dust-proof shell, the upper end cover and the lower end cover form a closed cavity used for placing the vacuum reversing valve; the upper end cover is in a rectangular flat plate shape, a cylinder hole is formed in the upper end cover, a piston rod of the cylinder penetrates through the cylinder hole to be connected with the vacuum reversing valve, and heat dissipation holes for dissipating heat of the cylinder are formed in the side face of the upper end cover; the blockage defect of the vacuum reversing valve in a dust environment is avoided, the reversing reaction is fast, the sensitivity is high, and the working efficiency is improved.

Description

Dust keeper of vacuum reversing valve

Technical Field

The utility model relates to a vacuum reversing valve technical field especially relates to a dust keeper of vacuum reversing valve.

Background

The environment condition of an industrial manufacturing site is complex, and some production workshops are not in a dust-free environment, which causes certain interference to the working performance of the existing vacuum control valve.

A common vacuum diverter valve is a directional control valve having more than two flow patterns. The vacuum reversing valve can realize communication, cutting off and reversing of gas and liquid media, but when the vacuum reversing valve works in a dust environment, the dust blocking phenomenon of the vacuum reversing valve during reversing work is caused, so that the reversing reaction of the vacuum reversing valve is slow and insensitive, and the working progress and the working quality are influenced.

SUMMERY OF THE UTILITY MODEL

Based on the technical problem that the background art exists, the utility model provides a vacuum reversing valve's dust keeper has avoided the jam defect of vacuum reversing valve under dust environment for the switching-over reaction is fast, sensitivity is high, has improved work efficiency.

The utility model provides a dust keeper of vacuum reversing valve, including vacuum reversing valve and the cylinder that is used for driving the vacuum reversing valve, the vacuum reversing valve periphery is equipped with dust keeper, dust keeper includes upper end cover, lower end cover and the dustproof casing that both ends run through, and dustproof casing, upper end cover and lower end cover form the closed cavity who is used for placing the vacuum reversing valve; the upper end cover is provided with a cylinder hole, a piston rod of the cylinder penetrates through the cylinder hole to be connected with the vacuum reversing valve, and the side face of the upper end cover is provided with a heat dissipation hole for dissipating heat of the cylinder.

Furthermore, a nylon sealing gasket is arranged in the vacuum reversing valve, and a piston rod of the air cylinder is connected with the nylon sealing gasket.

Furthermore, the upper end cover is rectangular flat, four heat dissipation holes are formed in the upper end cover, and the heat dissipation holes symmetrically penetrate through the four side faces of the upper end cover and are communicated with the cylinder holes.

Furthermore, the periphery of the outer side surface of the upper end cover is provided with a through upper fixing hole, and the upper end cover penetrates through the upper fixing hole through a screw to be fixedly connected with the dustproof shell.

Furthermore, a first interface flange is connected to the outer side of the dustproof shell, a second interface flange is connected to the outer side of the lower end cover, and the first interface flange and the second interface flange are arranged perpendicularly.

Furthermore, the periphery of the outer side surface of the lower end cover is provided with a lower fixing hole which penetrates through the lower end cover, and the lower end cover penetrates through the lower fixing hole through a screw to be fixedly connected with the dustproof shell.

The utility model provides a pair of vacuum reversing valve's dust keeper's advantage lies in: the utility model provides a dust keeper of vacuum reversing valve in the structure, the closed cavity that is used for placing the vacuum reversing valve that dustproof casing, upper end cover and bottom end cover formed makes the vacuum reversing valve can be in dustless or have the dirt environment to work, has avoided the jam defect of vacuum reversing valve under the dust environment, makes the switching-over reaction fast, sensitivity is high, has improved work efficiency; the upper end cover directly fixes the cylinder, so that the cylinder fixing structure is simplified, and the installation is convenient; the arrangement of the nylon sealing gasket ensures the sealing performance of the vacuum reversing valve during reversing.

Drawings

Fig. 1 is a schematic structural view of a dust-proof device of a vacuum reversing valve according to the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic perspective view of the upper end cap;

FIG. 4 is a schematic plan view of the upper end cap;

FIG. 5 is a schematic structural diagram of a conventional vacuum diverter valve;

the air cylinder is connected with the air cylinder through the connecting hole, wherein the air cylinder is 1-air cylinder, the dustproof shell is 2-upper end cover, the lower end cover is 3-lower end cover, the first interface flange is 5-first interface flange, the second interface flange is 6-heat dissipation hole, the nylon sealing gasket is 8-nylon sealing gasket, the connecting cover is 11-heat dissipation channel, the dustproof cover is 13-dust cover, the bump is 14-lug, and the connecting hole is 15-connecting hole.

Detailed Description

The technical solution of the present invention will be described in detail by the following embodiments.

As shown in fig. 1 to 4, the utility model provides a dust keeper of vacuum reversing valve, including vacuum reversing valve and cylinder 1 used for driving the vacuum reversing valve, the periphery of vacuum reversing valve is equipped with dust keeper, dust keeper includes upper end cover 3, lower end cover 4 and dust-proof housing 2 that both ends run through, dust-proof housing 2, upper end cover 3 and lower end cover 4 form the closed cavity used for placing the vacuum reversing valve; the upper end cover 3 is provided with a cylinder hole 9, a piston rod of the cylinder 1 penetrates through the cylinder hole 9 to be connected with the vacuum reversing valve, and the side face of the upper end cover 3 is provided with a heat dissipation hole 7 for dissipating heat of the cylinder 1.

The dust-proof housing 2, the upper end cover 3 and the lower end cover 4 form a closed cavity, so that the defect that the vacuum reversing valve is interfered by dust is avoided, and meanwhile, the upper end cover 3 is arranged into a rectangular flat plate shape, so that the defect that the dust is gathered due to the arrangement of the heat dissipation channel 12 of the traditional connecting cover 11, and the vacuum reversing valve is easily blocked by dust is overcome.

Specifically, as shown in fig. 3 and 4, the upper end cover 3 is a rectangular flat plate, four heat dissipation holes 7 are provided, and the heat dissipation holes 7 are symmetrically arranged on four side surfaces of the upper end cover 3 in a penetrating manner and are communicated with the cylinder holes 9. Not only can realize cylinder 1's stable heat dissipation, avoid the dust to gather in cylinder hole 9, cause cylinder 1's jam defect, save the manpower and materials consume that traditional connecting cover 11 went up the setting of heat dissipation channel 12 and caused moreover, and then can save the cost, increase economic benefits.

The upper end cover 3 is directly provided with the cylinder hole 9 for placing the cylinder 1, and the cylinder 1 is fixed through the heat dissipation holes 7, so that the fixation of the simplified cylinder 1 is improved, the structure is simple, the installation is convenient, and the working stability of the cylinder 1 is improved.

Further, as shown in fig. 2, a nylon sealing gasket 8 is arranged in the vacuum reversing valve, and a piston rod of the cylinder 1 is connected with the nylon sealing gasket 8. The arrangement of the nylon sealing gasket 8 ensures that the cylinder 1 drives the nylon sealing gasket 8 to act when the vacuum reversing valve reverses, thereby ensuring the sealing performance of the vacuum reversing valve during reversing.

Furthermore, the periphery of the outer side surface of the upper end cover 3 is provided with a through upper fixing hole 10, and the upper end cover 3 penetrates through the upper fixing hole 10 through a screw to be fixedly connected with the dust-proof shell 2. The periphery of the outer side surface of the lower end cover 4 is provided with a lower fixing hole which penetrates through the lower end cover 4, and the lower fixing hole is fixedly connected with the dustproof shell 2 through a screw.

The upper end cover 3 and the lower end cover 4 are respectively detachably connected with the dust-proof housing 2, so that the vacuum reversing valve can be conveniently placed and taken out, and it should be understood that the upper end cover 3 and the lower end cover 4 can also be fixed with the dust-proof housing 2 through other manners, such as welding, riveting, spline connection and the like. The present application only prefers a threaded detachable connection.

Further, as shown in fig. 1, a first interface flange 5 is connected to the outer side of the dust-proof housing 2, a second interface flange 6 is connected to the outer side of the lower end cover 4, and the first interface flange 5 and the second interface flange 6 are vertically arranged. The first interface flange 5 and the second interface flange 6 are respectively connected with an external device to realize the normal work of the vacuum reversing valve.

The working process is as follows: the vacuum reversing valve is placed in a hollow dustproof shell 2, an upper end cover 3 and a lower end cover 4 are respectively installed at two penetrating ends of the dustproof shell 2 to form the closed vacuum reversing valve, the vacuum reversing valve is reversed through air supply of an external device, and when the vacuum reversing valve is reversed, the cylinder 1 drives the nylon sealing gasket to act, so that the sealing performance of the vacuum reversing valve during reversing is guaranteed.

As shown in fig. 5, a conventional common vacuum reversing valve comprises a dust cover 13, a connecting cover 11 is connected to one side of the dust cover 13, a connecting hole 15 is formed in the connecting cover 11, a cylinder drives the vacuum reversing valve to operate through the connecting hole 15, and the cylinder often has an abnormal operation phenomenon due to an overhigh temperature in an operation process, conventionally, 4 equal-sized bumps 14 are generally arranged on the connecting cover 11, the 4 bumps 14 are respectively arranged at four corners of the same surface of the connecting cover 11, the 4 bumps 14 are centrosymmetric with respect to the connecting hole 15, and the 4 bumps 14 and the connecting hole 15 form four heat dissipation channels 12 to dissipate heat of the cylinder, because when a piston rod of the cylinder passes through the connecting hole 15, the cylinder is fixed by a long bolt and has a certain matching relationship with the 4 bumps 14, so that the accuracy requirement for processing the bumps 14 is high, and the overall processing cost of the heat dissipation channels 12 is further achieved, the overall economic benefit is reduced, in poor environment or environment with more dust, the heat dissipation channel 12 is easily blocked by dust or other impurities, on the one hand, the connection hole 15 is blocked, on the other hand, the heat dissipation of the cylinder is poor, and therefore the traditional connection cover 11 cannot meet the requirements of dust or severe environment on the vacuum reversing valve.

And this application adopts the flat upper end cover 3 of rectangle to replace traditional connecting cover 11, sets up corresponding louvre 7 simultaneously around upper end cover 3, and louvre 7 only is the aperture size with external intercommunication department, because the cylinder generates heat simultaneously, causes louvre 7 both ends to have the difference in temperature, forms the heat dissipation route by interior (cylinder department) outside (external) in louvre 7, further makes can not arouse gathering of dust in the louvre 7. Therefore, the arrangement of the heat dissipation holes 7 avoids the defect of dust collection caused by large-area exposure of the heat dissipation channel 12 in a dust environment, reduces the influence of dust on the work of the cylinder 1, improves the working efficiency and the service life of the cylinder 1, and improves the timely on-off of the vacuum reversing valve.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A dust-proof device of a vacuum reversing valve comprises the vacuum reversing valve and a cylinder (1) used for driving the vacuum reversing valve, and is characterized in that the dust-proof device is arranged on the periphery of the vacuum reversing valve and comprises an upper end cover (3), a lower end cover (4) and a dust-proof shell (2) with two ends penetrating through, and the dust-proof shell (2), the upper end cover (3) and the lower end cover (4) form a closed cavity used for placing the vacuum reversing valve;

the upper end cover (3) is provided with a cylinder hole (9), a piston rod of the cylinder (1) penetrates through the cylinder hole (9) to be connected with the vacuum reversing valve, and the side face of the upper end cover (3) is provided with a heat dissipation hole (7) for dissipating heat of the cylinder (1).

2. The dust keeper of a vacuum directional control valve according to claim 1, characterized in that a nylon gasket (8) is arranged in the vacuum directional control valve, and a piston rod of the cylinder (1) is connected with the nylon gasket (8).

3. The dust keeper for a vacuum interrupter as defined in claim 1, wherein the top cap (3) has a rectangular plate shape, four heat dissipating holes (7) are provided, and the heat dissipating holes (7) are symmetrically disposed through four side surfaces of the top cap (3) and communicate with the cylinder bore (9).

4. The dust-proof device of the vacuum reversing valve according to claim 1, characterized in that the periphery of the outer side surface of the upper end cover (3) is provided with a through upper fixing hole (10), and the upper end cover (3) passes through the upper fixing hole (10) through a screw to be fixedly connected with the dust-proof housing (2).

5. The dust-proof device of the vacuum reversing valve according to claim 1, characterized in that a first interface flange (5) is connected to the outer side of the dust-proof housing (2), a second interface flange (6) is connected to the outer side of the lower end cover (4), and the first interface flange (5) and the second interface flange (6) are arranged vertically.

6. The dust-proof device of the vacuum reversing valve according to claim 1, characterized in that the periphery of the outer side surface of the lower end cover (4) is provided with a lower fixing hole which penetrates through the lower end cover (4), and the lower end cover (4) passes through the lower fixing hole through a screw to be fixedly connected with the dust-proof shell (2).