CN212616627U

CN212616627U - Pneumatic reversing valve

Info

Publication number: CN212616627U
Application number: CN202020916718.6U
Authority: CN
Inventors: 马波; 张凯
Original assignee: Shandong Yuanguan Enfu Machinery Equipment Co ltd
Current assignee: Shandong Yuanguan Enfu Machinery Equipment Co ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-02-26
Anticipated expiration: 2030-05-27

Abstract

The utility model relates to a pneumatic reversing valve, including pneumatic reversing valve and loading platform, pneumatic reversing valve base be fixed in loading platform up end, its characterized in that the loading platform on fixedly connected with be used for protecting the protector of pneumatic reversing valve, protector include chassis, first protection casing, second protection casing and third protection casing, first protection casing lower extreme through gim peg fixed connection in one side of chassis up end, through installing protector on pneumatic reversing valve, avoided pneumatic reversing valve in the use because of exposing in the air for a long time and cause the damage of internal component to prolong the life of pneumatic reversing valve, in order to realize the reduction of manufacturing cost; meanwhile, the protective cover on the protective device is transparent organic glass, whether the action of the pneumatic reversing valve is normal or not can be observed in the using process of the pneumatic reversing valve, and meanwhile, the pneumatic valve can be adjusted by arranging single-opening doors on two sides of the pneumatic reversing valve.

Description

Pneumatic reversing valve

Technical Field

The utility model relates to a switching-over valve technical field, concretely relates to pneumatic switching-over valve.

Background

The pneumatic reversing valve is an execution element and is used for controlling the flow direction of fluid in a system, a plurality of types of pneumatic reversing valves are selected according to requirements, workshops where some equipment provided with the pneumatic reversing valves are located are different, environments are different, the pneumatic reversing valves are exposed in acid-base, damp or dust environments for a long time, internal elements of the air exchanging valve are easily damaged, the service life of the pneumatic reversing valve is influenced if the pneumatic reversing valves are not protected for a long time, and production cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic switching-over valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a pneumatic reversing valve comprises a pneumatic reversing valve and a loading platform, wherein a base of the pneumatic reversing valve is fixed on the upper end surface of the loading platform, and the pneumatic reversing valve is characterized in that the loading platform is fixedly connected with a protection device for protecting the pneumatic reversing valve, the protection device comprises a chassis, a first protection cover, a second protection cover and a third protection cover, the lower end of the first protection cover is fixedly connected to one side of the upper end surface of the chassis through a fixing bolt, the second protection cover is sleeved on the first protection cover, the lower end surface of the second protection cover is in rolling connection with the chassis through a sliding wheel, the third protection cover is sleeved on the second protection cover, the lower end surface of the third protection cover is in rolling connection with the chassis through a sliding wheel, one side, away from the second protection cover, of the first protection cover is hinged with a first single-opening door through a hinge, one side, away from the second protection cover, is hinged with a second, two round holes are formed in the top end of the second protective cover, and a sealing ring is fixed on each round hole.

Preferably, the underframe is formed by combining a first profile and a second profile, each 2 pieces of the two profiles are in number and are connected through fasteners in parallel and symmetrically, and connecting grooves are formed in the first profile and the second profile.

Preferably, first protection casing, second protection casing and third protection casing be C shape structure, and form through the fastener combination by the first section bar of co-altitude not, the protection casing above, preceding and three face at the back all install the organic glass that is favorable to observing, and be fixed with the mounting panel between organic glass and the first section bar, first protection casing overall dimension be less than second protection casing overall dimension, second protection casing overall dimension is less than the overall dimension of third protection casing.

Preferably, the sliding wheel consists of a screw, a sleeve, a connecting shaft and rollers, the lower end of the screw is in threaded connection and sleeved, the connecting shaft horizontally penetrates through the lower end of the sleeve, and the rollers rolling in the connecting grooves are uniformly arranged at two ends of the connecting shaft. The fixing bolt is formed by combining a screw and a T-shaped nut.

Preferably, the lower ends of the first protective cover and the second protective cover close to the lower end of one side of the first single-opening door are fixedly connected with a baffle in the shape of angle steel.

Preferably, one end of the underframe close to the third protective cover is fixedly connected with a rectangular stop block for preventing the third protective cover from sliding out of the underframe, and the stop block is positioned below the second single-door.

Preferably, first singly open the door and the second singly open and all fixedly connected with organic glass on the door, and be connected with the section bar on the protection casing through the bolt with the corresponding one side of hinge.

Preferably, the organic glass is colorless and transparent in color.

Compared with the prior art, the beneficial effects of the utility model are that: the protective device is arranged on the pneumatic reversing valve, so that the damage of internal elements caused by long-time exposure of the pneumatic reversing valve in the use process is avoided, the service life of the pneumatic reversing valve is prolonged, and the reduction of the production cost is realized; meanwhile, the protective cover on the protective device is transparent organic glass, whether the action of the pneumatic reversing valve is normal or not can be observed in the using process of the pneumatic reversing valve, and meanwhile, the pneumatic valve can be adjusted by arranging single-opening doors on two sides of the pneumatic reversing valve.

Drawings

FIG. 1 is a schematic structural view of the pneumatic directional control valve of the present invention;

FIG. 2 is a front view of the pneumatic directional control valve of the present invention;

FIG. 3 is a top view of the pneumatic directional control valve of the present invention;

fig. 4 is a left side view of the pneumatic reversing valve of the present invention;

FIG. 5 is a schematic view of the underframe of the present invention;

fig. 6 is a schematic view of the structure of the sliding wheel of the present invention.

In the figure: 1. pneumatic reversing valve, 2, protection device, 3, loading platform, 201, first protection casing, 202, second protection casing, 203, third protection casing, 204, fixed bottom plate, 205, first single-opening door, 206, second single-opening door, 207, sealing washer, 208, movable pulley, 209, gim peg, 210, organic glass, 211, chassis, 212, mounting panel, 213, hinge, 214, spread groove, 215, baffle, 216, dog, 217, set screw, 21101, first section bar, 21102, second section bar, 20801, screw, 20802, cover, 20803, connecting shaft, 20804, gyro wheel.

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 addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1, the utility model relates to a pneumatic reversing valve includes pneumatic reversing valve 1, protection device 2 and loading platform 3, and wherein pneumatic reversing valve 1 and protection device 2 all are fixed in on loading platform 3, and pneumatic reversing valve is located protection device 2 to realize that protection device can protect pneumatic reversing valve. Referring to fig. 2, 3 and 4, the protection device includes a chassis 211, a first shield 201, a second shield 202 and a third shield 203, wherein the third protection cover 203 is sleeved outside the second protection cover 202, the second protection cover 202 is sleeved outside the first protection cover 201, thereby realizing the protection of the pneumatic reversing valve by the telescopic protective cover, the upper end surface of the second protective cover is provided with two round holes matched with the air inlet pipe and the air outlet pipe, the round holes are provided with seals 207 sleeved on the air pipes, so as to prevent dust and impurities from entering the protection device 2 through the round hole, one side of the inner first protection cover far away from the second protection cover is connected with a first one-way door 205 through a hinge 213, a second one-way door 206 is fixedly connected to one side of the third protection cover far away from the second protection cover, each one-way door is provided with a lockable bolt, so that the sealing performance of the protection device is realized; the lower end faces of the three protective covers are coplanar and are connected with the underframe, a fixing bolt 209 is connected between the first protective cover 201 and the underframe 211, sliding wheels 208 are connected between the second protective cover 202 and the underframe 211, the sliding wheels and the underframe are in rolling connection, so that the second protective cover and the third protective cover can slide on the underframe 211, and a baffle plate in the shape of an angle steel is installed on one side, away from the third protective cover 203, of the lower ends of the first protective cover 201 and the second protective cover 202, so that the sliding range of the second protective cover and the third protective cover on the underframe 211 is limited by installing the baffle plate; one side of the underframe close to the third protective cover is connected with a rectangular stop block 216 through a fastener so as to limit the extending distance of the third protective cover 203 and prevent the protective cover from sliding out of the underframe 211; a positioning screw 217 is fixed on the chassis 211 at a position corresponding to the base at the intersection of the second shield and the third shield after the second shield and the third shield extend, and the second shield extends beyond the sliding range after the second shield extends.

As shown in fig. 5, the bottom frame 211 is formed by combining two types of profiles, namely a first profile 21101 and a second profile 21102, the two types of profiles are 2 and are arranged in parallel and symmetrically, the first profile and the second profile are both provided with a connecting groove 214, the lower end of the first protection cover 201 is fixed with the connecting groove 214 through a fixing bolt 209, and the lower end faces of the second protection cover 202 and the third protection cover realize linear sliding connection between the protection cover and the bottom frame 211 through the guiding of the connecting groove on the second profile.

The first protective cover 201, the second protective cover 202 and the third protective cover 203 are all formed by combining first section bars 21101 with different heights and transparent organic glass 210 with different areas, are of C-shaped structures, the opening direction faces to the bottom frame 211, the organic glass is embedded between the frames formed by the first section bars, the mounting plate 212 is fixed at the intersection position of the section bars, so as to prevent the organic glass from falling off, the first protective cover 201 of the installed protective cover is smaller than the external dimension of the second protective cover 202, the external dimension of the second protective cover is smaller than the external dimension of the third protective cover 203, thereby realizing the mutual extension and contraction of the protective covers, the first single-opening door 205 and the second single-opening door 206 on both sides of the protective covers are both formed into a frame by a first section bar, the transparent organic glass 210 is embedded on the door, so as to realize the transparent integral structure and clearly observe the action of the valve in the internal protection device from the outside.

As shown in fig. 6, the sliding wheel 208 is composed of a screw 20801, a sleeve 20802, a connecting shaft 20803 and a roller 20804, wherein the screw 20801 penetrates through a first section 21101 at the lower end of the protective cover and is in threaded connection with the sleeve 20802 in a connecting groove 214 of a second section 21102 on the underframe 211 corresponding to the protective cover, the lower end of the sleeve 20802 is penetrated through by the connecting shaft 20803, the roller 20804 is arranged at two ends of the connecting shaft, and the roller rolls in the connecting groove, so that the solid protective cover is in sliding connection with the underframe 211 through the rolling connection between the roller 20804 and the second section 21102; the fixing bolt is formed by connecting and combining a screw and a T-shaped nut through threads, so that firm connection is realized.

It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed" and "connected" are to be construed broadly, e.g., as meaning 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. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific instances, and furthermore, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The organic glass, the bolt, the hinge and other components are all universal standard components or components known by technicians in the field, and the structure and the principle of the components can be known by the technicians through technical manuals or conventional experimental methods.

Referring to fig. 1, the working principle of the present invention is: at first fix pneumatic switching-over valve 1 on loading platform, then overlap protector 2 on pneumatic switching-over valve 1, make the trachea stretch out outside protector 2 through two round holes on second protection casing 202 top simultaneously, pulling second protection casing 202 and third protection casing 203 make the protection casing stretch out, close the single door that opens of protector 2 both sides, make protector 2 form a confined structure, start pneumatic switching-over valve 1, make it carry out work, when needs adjust the switching-over valve, only need open the single door of both sides and open or contract second protection casing 202 and third protection casing 203 and can adjust, this simple structure, and convenient operation does benefit to the observation, can prevent impurity or the damage of moisture to the valve in acid-base environment simultaneously.

Claims

1. The utility model provides a pneumatic reversing valve, includes pneumatic reversing valve (1) and loading platform (3), pneumatic reversing valve (1) base be fixed in loading platform (3) up end, its characterized in that loading platform on fixedly connected with be used for protecting pneumatic reversing valve (1) protector (2), protector (2) include chassis (211), first protection casing (201), second protection casing (202) and third protection casing (203), first protection casing (201) lower extreme through gim peg (209) fixed connection in one side of chassis (211) up end, second protection casing (202) overlap establish with first protection casing (201) on and the lower terminal surface constitutes roll connection through movable pulley (208) and chassis (211), third protection casing (203) overlap locate second protection casing (202) and the lower terminal surface constitutes roll connection through movable pulley (208) and chassis (211), first protection casing (201) keep away from one side of second protection casing and articulate through hinge (213) and have first list to open door (205), third protection casing (203) keep away from one side of second protection casing (202) and articulate through hinge (213) and have second list to open door (206), second protection casing top seted up two round holes, and be fixed with sealing washer (207) on the round hole.

2. A pneumatic reversing valve according to claim 1, wherein the base frame (211) is formed by combining a first profile (21101) and a second profile (21102), each of the two profiles being 2 in number and being connected in parallel and symmetrically by a fastening member, the first profile and the second profile being provided with a connecting groove (214).

3. The pneumatic reversing valve according to claim 1, wherein the first protective cover (201), the second protective cover (202) and the third protective cover (203) are all of a C-shaped structure and are formed by combining first sectional materials (21101) with different heights through fasteners, organic glass (210) which is favorable for observation is installed on the upper face, the front face and the rear face of the protective cover, a mounting plate (212) is fixed between the organic glass and the first sectional materials (21101), the overall dimension of the first protective cover is smaller than that of the second protective cover, and the overall dimension of the second protective cover is smaller than that of the third protective cover.

4. The pneumatic reversing valve according to claim 1, wherein the sliding wheel (208) is composed of a screw (20801), a sleeve (20802), a connecting shaft (20803) and a roller (20804), the lower end of the screw is in threaded connection with the sleeve (20802), the connecting shaft (20803) horizontally penetrates through the lower end of the sleeve (20802), the two ends of the connecting shaft are uniformly provided with the roller (20804) which rolls in the connecting groove (214), and the fixing bolt (209) is composed of a screw and a T-shaped nut.

5. The pneumatic reversing valve according to claim 1, wherein the lower ends of the first protective cover (201) and the second protective cover (202) close to the first single-opening door (205) are fixedly connected with a baffle plate (215) in the shape of an angle steel.

6. A pneumatic directional control valve as claimed in claim 1, wherein a rectangular stop (216) is fixedly attached to the end of the chassis (211) adjacent to the third guard (203) to prevent the third guard from sliding out of the chassis, and the stop is located below the second single-opening door (206).

7. The pneumatic reversing valve according to claim 1, wherein organic glass (210) is fixedly connected to each of the first single-opening door and the second single-opening door, and one side of each of the first single-opening door and the second single-opening door, which corresponds to the hinge, is connected with the profile on the protective cover through a bolt.

8. A pneumatic reversing valve according to claim 3 or 7, wherein the plexiglas (210) is colorless and transparent in color.