CN211550722U

CN211550722U - Valve purging mechanism

Info

Publication number: CN211550722U
Application number: CN201922089218.XU
Authority: CN
Inventors: 姚惟秀; 吴成祝
Original assignee: Anhui Zhongsite Fluid Equipment Co ltd
Current assignee: Anhui Zhongsite Fluid Equipment Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-09-22
Anticipated expiration: 2029-11-28

Abstract

The utility model relates to the technical field of valves, and discloses a valve purging mechanism, which comprises a valve body and a bent pipe, wherein the bent pipe is arranged on one side of the valve body, the center of the bent pipe is communicated with an air blowing flange, two ends of the bent pipe are communicated with a connecting pipe, one end of the connecting pipe is communicated with the valve body, the other end of the connecting pipe is connected with a blind flange, an anti-blocking mechanism is connected in the connecting pipe, and the anti-blocking mechanism is arranged between the valve body and the pipe orifice of the bent; the anti-blocking mechanism comprises a support ring, an annular sealing plate, a transmission rod, a spring and a cross-shaped support frame, wherein the support frame and the support ring are fixedly connected to the inner pipe wall of the connecting pipe, the support frame is arranged between the support ring and the corresponding pipe orifice of the bent pipe, the sealing plate is connected in the support ring in a sliding mode, the sealing plate is matched with the support ring, a transmission hole is formed in the center of the support frame, and one end of the transmission rod is fixedly connected to one end, close to the blind flange, of the. The utility model discloses effectively avoid taking place material blocking phenomenon in the takeover.

Description

Valve purging mechanism

Technical Field

The utility model relates to the technical field of valves, especially, relate to a valve sweeps mechanism.

Background

The valve of some current solid powder conveying system, under normal use condition, the material is piled up to the valve cavity, leads to the valve switch to block, appears the unable circumstances of opening and shutting of valve even, and current device of sweeping sweeps from both sides, and the scene need connect two way gas, and two way gas pressure sizes are difficult for controlling into unanimously, and the pressure value deviation can lead to sweeping inhomogeneous, sweeps the effect relatively poor, can produce the material secondary even and pile up. Two-way external gas is needed for blowing at two sides, and the gas circuit arrangement on site is complex. The purging connection pipe is easy to block the material entering the purging connection pipe, so that purging is not available.

The search publication (announcement) number CN207271713U discloses a felling harvesting head, when in use, a blowing flange is arranged on a bent pipe to be communicated with a gas path, the arrangement of the gas path on site is simplified, and the cost is saved; the proposal still has the following technical defects:

in the use process, materials are easy to accumulate in the connecting pipe to cause the connecting pipe to be blocked, so that the lower blind flange must be detached for cleaning, and the scheme has obvious defects.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art in the use material pile up easily and cause the takeover to block up in taking over to must pull down the blind flange and clear up, the obvious problem that has the defect of scheme, and the valve that proposes sweeps the mechanism.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a valve purging mechanism comprises a valve body and a bent pipe, wherein the bent pipe is arranged on one side of the valve body, the center of the bent pipe is communicated with an air blowing flange, two ends of the bent pipe are communicated with connecting pipes, one end of each connecting pipe is communicated with the valve body, the other end of each connecting pipe is connected with a blind flange, an anti-blocking mechanism is connected in each connecting pipe, and the anti-blocking mechanism is arranged between the valve body and the pipe orifice of the bent pipe;

the anti-blocking mechanism comprises a support ring, an annular sealing plate, a transmission rod, a spring and a support frame in a cross shape, wherein the support frame and the support ring are fixedly connected to the inner wall of the connecting pipe, the support frame is arranged between the corresponding pipe orifices of the support ring and the bent pipe, the sealing plate is slidably connected in the support ring, the sealing plate is matched with the support ring, a transmission hole is formed in the center of the support frame, one end of the transmission rod is fixedly connected to one end, close to the blind flange, of the sealing plate, the other end of the transmission rod penetrates through the transmission hole and extends outwards from the support frame, the spring sleeve is arranged on the transmission rod, and the two ends of the spring.

Preferably, one end of the transmission rod, which is far away from the sealing plate, is fixedly connected with an anti-dropping plate.

Preferably, one end of the connecting pipe, which is far away from the blind flange, is fixedly connected with a filter screen.

Preferably, a sealing groove is formed in the annular side wall of the sealing plate, a sealing ring is sleeved in the sealing groove, and the outer annular wall of the sealing ring is arranged on the inner annular wall of the supporting ring.

Preferably, a plurality of rolling grooves are uniformly and equidistantly formed in the hole wall of the transmission hole, rolling balls are arranged in the rolling grooves, and the rolling balls are connected to the rod wall of the transmission rod in a rolling mode.

Preferably, the inner ring wall of the support ring is symmetrically and fixedly connected with limiting blocks, and the limiting blocks are located between the sealing plate and the support frame.

Compared with the prior art, the utility model provides a valve sweeps mechanism possesses following beneficial effect:

1. this valve sweeps mechanism, through setting up the support ring, the closing plate, the transfer line, one is constituteed to spring and support frame and is prevented blockking up the mechanism, when the flange of blowing does not put through the gas circuit, the closing plate is blockked up on the support ring, prevent that the material on the valve body from getting into and piling up in the takeover, when opening the gas circuit and sweeping the valve body, gas enters into in the takeover through the return bend, break away from on the support ring after closing plate atress on the support ring, the air is taken over through support ring blowout and is cleared up the material, after gas is closed, the closing plate loses thrust, plug up the support ring again, effectively.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses effectively avoid taking place material blocking phenomenon in the takeover.

Drawings

Fig. 1 is a schematic structural diagram of a valve purging mechanism according to the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure: the anti-blocking valve comprises a valve body 1, a bent pipe 2, a blowing flange 3, a connecting pipe 4, a blind flange 5, an anti-blocking mechanism 6, a support ring 61, a sealing plate 62, a transmission rod 63, a spring 64, a support frame 65, an anti-dropping plate 7, a filter screen 8, a sealing ring 9, a rolling groove 10, balls 11 and a limiting block 12.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "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 simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a valve purging mechanism comprises a valve body 1 and a bent pipe 2, wherein the bent pipe 2 is arranged on one side of the valve body 1, the center of the bent pipe 2 is communicated with a blowing flange 3, two ends of the bent pipe 2 are communicated with connecting pipes 4, one end of each connecting pipe 4 is communicated with the valve body 1, the other end of each connecting pipe 4 is connected with a blind flange 5, an anti-blocking mechanism 6 is connected in each connecting pipe 4, and the anti-blocking mechanism 6 is arranged between the valve body 1 and the pipe orifice of the bent pipe 2;

the anti-blocking mechanism 6 comprises a support ring 61, an annular sealing plate 62, a transmission rod 63, a spring 64 and a cross-shaped support frame 65, wherein the support frame 65 and the support ring 61 are fixedly connected on the inner pipe wall of the connecting pipe 4, the support frame 65 is arranged between the support ring 61 and the corresponding pipe orifice of the elbow 2, the sealing plate 62 is slidably connected in the support ring 61, the sealing plate 62 is matched with the support ring 61, a transmission hole is formed in the center of the support frame 65, one end of the transmission rod 63 is fixedly connected to one end, close to the blind flange 5, of the sealing plate 62, the other end of the transmission rod 63 penetrates through the transmission hole and extends out of the support frame 65, the spring 64 is sleeved on the transmission rod 63, two ends of the spring 64 are respectively connected with the sealing plate 62 and the support frame 65, when the blowing flange 3 is not connected, the sealing plate 62, when the gas path is opened to purge the valve body 1, gas enters the connecting pipe 4 through the elbow pipe 2, the sealing plate 62 on the support ring 61 is separated from the support ring 61 after being stressed, the driving transmission rod 63 is driven to synchronously move on the support frame 65 when the sealing plate 62 moves, the spring 64 is stretched, after the sealing plate 62 is separated from the support ring 61, air is sprayed out of the connecting pipe 4 through the support ring 61 to clean materials, after the gas is closed, the sealing plate 62 loses thrust, the stretched spring 64 drives the sealing plate 62 to return to the original position, the support ring 61 is plugged again, and the phenomenon that the materials are blocked in the connecting pipe 4 is effectively avoided.

The end of the transmission rod 63 far away from the sealing plate 62 is fixedly connected with a retaining plate 7 to prevent the transmission rod 63 from separating from the supporting frame 65.

One end of the connecting pipe 4 far away from the blind flange 5 is fixedly connected with a filter screen 8, so that large-particle materials in the materials are prevented from entering the connecting pipe 4.

The sealing groove is formed in the annular side wall of the sealing plate 62, the sealing ring 9 is sleeved in the sealing groove, the outer annular wall of the sealing ring 9 is arranged on the inner annular wall of the support ring 61, and the air tightness between the sealing plate 62 and the support ring 61 is improved.

The wall of the transmission hole is uniformly and equidistantly provided with a plurality of rolling grooves 10, rolling balls 11 are arranged in the rolling grooves 10, and the rolling balls 11 are connected to the rod wall of the transmission rod 63 in a rolling manner, so that the transmission rod 63 can stably move in the transmission hole.

The inner ring wall of the support ring 61 is symmetrically and fixedly connected with a limiting block 12, and the limiting block 12 is located between the sealing plate 62 and the support frame 65 to prevent the sealing plate 62 from being pressed out of the support ring 61 by materials.

The utility model discloses in, when blowing flange 3 does not put through the gas circuit, closing plate 62 blocks up on support ring 61, prevent that the material on the valve body 1 from getting into and piling up in taking over 4, when opening the gas circuit and sweeping valve body 1, gas enters 2 through the return bend and goes into in taking over 4, break away from support ring 61 after closing plate 62 atress on support ring 61, drive transfer line 63 and be simultaneous movement on support frame 65 during closing plate 62 moves, and extension spring 64, closing plate 62 breaks away from the back from support ring 61, the air is taken over 4 through support ring 61 blowout and is cleared up the material, after gas is closed, closing plate 62 loses thrust, it gets back to the normal position to drive closing plate 62 by tensile spring 64, plug up support ring 61 again, effectively avoid taking over 4 interior material blocking phenomenon.

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 valve purging mechanism comprises a valve body (1) and a bent pipe (2), and is characterized in that the bent pipe (2) is arranged on one side of the valve body (1), the center of the bent pipe (2) is communicated with an air blowing flange (3), two ends of the bent pipe (2) are communicated with a connecting pipe (4), one end of the connecting pipe (4) is communicated with the valve body (1) to be arranged, the other end of the connecting pipe (4) is connected with a blind flange (5), a blocking-preventing mechanism (6) is connected in the connecting pipe (4), and the blocking-preventing mechanism (6) is arranged between the valve body (1) and a pipe opening of the bent pipe (2);

the anti-blocking mechanism (6) comprises a support ring (61), an annular sealing plate (62), a transmission rod (63), a spring (64) and a cross-shaped support frame (65), the support frame (65) and the support ring (61) are fixedly connected to the inner pipe wall of the connecting pipe (4), the support frame (65) is arranged between the support ring (61) and a corresponding pipe orifice of the bent pipe (2), the sealing plate (62) is connected in the support ring (61) in a sliding manner, the sealing plate (62) is matched with the support ring (61), a transmission hole is formed in the center of the support frame (65), one end of the transmission rod (63) is fixedly connected to one end, close to the blind flange (5), of the sealing plate (62), the other end of the transmission rod (63) penetrates through the transmission hole and extends outwards of the support frame (65), and the spring (64) is sleeved on the transmission rod (63), and two ends of the spring (64) are respectively connected with the sealing plate (62) and the supporting frame (65).

2. The valve purging mechanism according to claim 1, wherein an end of the transmission rod (63) away from the sealing plate (62) is fixedly connected with a retaining plate (7).

3. A valve purging mechanism according to claim 1, wherein a filter screen (8) is fixedly connected to one end of the adapter tube (4) away from the blind flange (5).

4. The valve purging mechanism according to claim 1, wherein a sealing groove is formed in an annular side wall of the sealing plate (62), a sealing ring (9) is sleeved in the sealing groove, and an outer annular wall of the sealing ring (9) is disposed on an inner annular wall of the support ring (61).

5. The valve purging mechanism according to claim 1, wherein a plurality of rolling grooves (10) are uniformly and equidistantly formed in the wall of the transmission hole, rolling balls (11) are arranged in the rolling grooves (10), and the rolling balls (11) are connected to the rod wall of the transmission rod (63) in a rolling manner.

6. The valve purging mechanism according to claim 1, wherein the inner annular wall of the support ring (61) is symmetrically and fixedly connected with a limiting block (12), and the limiting block (12) is located between the sealing plate (62) and the support frame (65).