CN210014041U - Automatically cleaning push-pull valve - Google Patents
Automatically cleaning push-pull valve Download PDFInfo
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- CN210014041U CN210014041U CN201920889630.7U CN201920889630U CN210014041U CN 210014041 U CN210014041 U CN 210014041U CN 201920889630 U CN201920889630 U CN 201920889630U CN 210014041 U CN210014041 U CN 210014041U
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Abstract
The utility model provides a self-cleaning gate valve, which comprises a gate and a valve body with a material conveying channel, wherein the valve body is also provided with a gate slide way which vertically penetrates to the material conveying channel, the gate can be plugged and arranged on the gate slide way, and the plugging and unplugging of the gate realizes plugging or opening the material conveying channel; still including sealed self-cleaning sealing member that sets up between picture peg and picture peg slide, self-cleaning sealing member has entry, export and is formed at the inside transmission path who communicates entry and export of sealing member, the entry of self-cleaning sealing member is used for connecting the pressure source, the export of self-cleaning sealing member sets up towards the direction of the biography material passageway of valve body, and corresponds the picture peg, the export of self-cleaning sealing member is self-closing structure, and is following open under the impact of the medium that the entry got into, can effectively improve the reliability and the life of picture peg valve.
Description
Technical Field
The utility model relates to a push-pull valve field, concretely relates to automatically cleaning push-pull valve that reliability is high, long service life.
Background
The gate valve is a main device for controlling the flow in the process of conveying materials such as powder, crystal particles, small particles or liquid with more impurities; the gate valve is widely applied to industries such as metallurgy, mines, building materials, grains, chemical engineering, environmental protection and the like, and is used for cutting off or controlling the flow.
The gate valve drives the gate to move through the valve rod so as to realize opening and closing, and the gate is connected with the valve cavity in a sealing mode through the sealing device. In the process of the movement of the inserting plate, because of the sealing requirement, friction exists between the inserting plate and the sealing device, when powder and granular materials enter between the inserting plate and the sealing element, the sealing element can be damaged at an accelerated speed, the service lives of the sealing element and the inserting plate are greatly reduced, the sealing property of the inserting plate is deteriorated, even when the inserting plate is opened, dust, granules and the like on the inserting plate can move out of the valve cavity along with the inserting plate, and the environment is polluted. Meanwhile, if the powder and granular materials are not removed in time when entering the flashboard slideway, the flashboard can not be closed in place to cause the leakage of the flashboard valve, so that the reliability is poor.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a reliability is high, long service life's automatically cleaning push-pull valve.
In order to achieve the above purpose, the utility model provides a technical scheme as follows:
a self-cleaning gate valve comprises a gate and a valve body with a material conveying channel, wherein a gate slideway which vertically penetrates to the material conveying channel is further formed in the valve body, the gate can be plugged and pulled on the gate slideway, and plugging and pulling of the gate can plug or open the material conveying channel; still including sealed self-cleaning sealing member that sets up between picture peg and picture peg slide, self-cleaning sealing member has entry, export and is formed at inside and the transmission path who communicates entry and export of sealing member, self-cleaning sealing member's entry is used for connecting the pressure source, self-cleaning sealing member's export sets up towards the direction of the biography material passageway of valve body, and corresponds the picture peg, self-cleaning sealing member's export is self-closing structure, and follows open under the impact of the medium that the entry got into.
Furthermore, the outlet of the self-cleaning sealing element is clamped by the inserting plate and the inner wall of the inserting plate slideway to deform and close.
Furthermore, the outlet of the self-cleaning sealing element is formed by two elastic overlap edges in clearance fit, and the two elastic overlap edges are clamped by the inserting plate and the inner wall of the inserting plate slideway to deform and close.
Furthermore, the elastic lap is formed by integrally extending a self-cleaning sealing piece.
Furthermore, the two elastic laps are matched to form a splayed discharge channel, a wide opening of the discharge channel is connected with the transmission channel, and a sharp opening of the discharge channel is the outlet.
Further, a storage cavity is formed in the transmission channel, and a wide opening of the discharge channel is connected with the storage cavity.
Further, the included angle of the discharge channel is 10-60 degrees.
Furthermore, the elastic overlap edge is of a V-shaped structure, and the sharp corners of the two elastic overlap edges are correspondingly matched to form the outlet.
Further, an elastic sealing structure corresponding to the outlet is arranged in the transmission channel of the self-cleaning sealing member, and the elastic sealing structure comprises: the self-closing device comprises an elastic element and a stop block, wherein the stop block is abutted against the other side of the outlet from one side of the outlet under the action of the elastic force of the elastic element so as to realize the self-closing of the outlet.
Furthermore, the blocking block is provided with an inclined surface and forms a splayed discharge channel with the inner wall of the transmission channel, and the sharp opening of the discharge channel corresponds to the outlet.
Further, a storage cavity is formed in the transmission channel, and a wide opening of the discharge channel is connected with the storage cavity.
Through the utility model provides a technical scheme has following beneficial effect:
a self-cleaning sealing element is adopted between the inserting plate and the inserting plate slide way for sealing, the outlet of the self-cleaning sealing element is of a self-closing structure and has a one-way stopping function, so that the self-cleaning sealing element has a sealing effect like a conventional sealing element; when the plug plate is plugged and unplugged, the self-closing opening is flushed by using a medium (such as air, liquid and the like) with pressure, so that the sealing matching surface of the plug plate is flushed, dust, particles and other impurities on the plug plate are removed, the dust, the particles and the like on the plug plate are prevented from entering the sealing element along with the plug plate and moving to the outside of the valve cavity, and the reliability and the service life of the plug plate valve are improved.
Drawings
FIG. 1 is a schematic structural view of a first embodiment of a self-cleaning gate valve;
FIG. 2 is a schematic view of a self-cleaning seal in a natural state according to an embodiment;
FIG. 3 is a schematic view of the self-cleaning seal of the first embodiment in a closed outlet state after being pressurized;
FIG. 4 is a schematic structural view of a second embodiment of the self-cleaning gate valve;
FIG. 5 is a schematic view of the self-cleaning seal of the second embodiment in a closed state of the outlet;
fig. 6 is a schematic structural view of the self-cleaning sealing member in the outlet opening state according to the second embodiment.
Detailed Description
To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The present invention will now be further described with reference to the accompanying drawings and detailed description.
Example one
Referring to fig. 1 to 3, the self-cleaning gate valve provided in this embodiment includes a gate 20 and a valve body 10 having a material conveying channel 11, the valve body 10 is further provided with a gate slideway 12 vertically penetrating the material conveying channel 11, the gate 20 is detachably disposed on the gate slideway 12, plugging and unplugging of the gate 20 is implemented to block or open the material conveying channel 11, and a material is conveyed from the material conveying channel 11.
The self-cleaning valve further comprises a self-cleaning sealing member 30 which is arranged between the inserting plate 20 and the inserting plate slideway 12 in a sealing mode, wherein the self-cleaning sealing member 30 is provided with an inlet 301, an outlet 302 and a transmission channel 303 which is formed inside the sealing member 30 and is communicated with the inlet 301 and the outlet 302, the inlet 301 of the self-cleaning sealing member 30 is used for being connected with a pressure source (such as a gas source or a water source with certain pressure) and the outlet 302 of the self-cleaning sealing member 30 faces the direction of the material conveying channel 11 of the valve body 10 and corresponds to the inserting plate 20, and the outlet 302 of the self-cleaning sealing member 30 is of a self-closing structure and is opened.
The outlet 302 of the self-cleaning sealing element 30 is of a self-closing structure and has a one-way stopping function, so that the self-cleaning sealing element 30 plays a sealing role as a conventional sealing element; when the inserting plate 20 is inserted/pulled out, the self-closing opening 302 is flushed by a medium with pressure (such as air, liquid and the like), so that the sealing matching surface (namely the surface which is in sealing matching with the self-cleaning sealing element) of the inserting plate 20 is flushed, dust, particles and other impurities on the inserting plate 30 are removed, the dust, particles and the like on the inserting plate are prevented from entering the sealing element (including the self-cleaning sealing element) along with the inserting plate and moving to the outside of the valve cavity, and the reliability and the service life of the inserting plate valve are improved.
Further, in this embodiment, the outlet 302 of the self-cleaning sealing member 30 is clamped by the insert plate 20 and the inner wall of the insert plate slideway 12 to be deformed and closed.
Specifically, the self-cleaning sealing element 30 is made of an elastic material (such as silica gel, rubber, polytetrafluoroethylene, etc.), so that elastic deformation of the self-cleaning sealing element 30 is realized, and after the self-cleaning sealing element 30 is assembled to a corresponding position, under the clamping action of the insert plate 20 and the inner wall of the insert plate slideway 12, the outlet 302 of the self-cleaning sealing element 30 is deformed and passively closed. When the self-cleaning sealing member 30 is in a natural state (i.e. without any external force), the outlet is in an open state as shown in fig. 2, and after being assembled to the corresponding position, the outlet 302 of the self-cleaning sealing member 30 is passively closed by being deformed under the clamping action of the insert plate 20 and the inner wall of the insert plate slideway 12, as shown in fig. 1 and 3.
In a natural state of the self-cleaning sealing element 30, the width of the outlet 302 is larger than 0.3mm and smaller than the compressed amount after assembly, that is, the self-cleaning sealing element can be clamped to be closed after assembly. The width of the outlet 302 is larger than 0.3mm to ensure the ejection volume of the outlet 302.
After the medium (gas/liquid) with pressure is filled, the medium is deformed again under the action of the medium to open the outlet 302; after the medium (gas/liquid) with certain pressure stops flowing in, the flashboard is closed again under the clamping action of the flashboard 20 and the inner wall of the flashboard slideway 12; and a self-closing structure is realized. Of course, in other embodiments, an elastically deformable self-closing structure is employed; or the self-cleaning sealing element 30 is in a natural state (i.e. no external force exists), the outlet 302 of the self-cleaning sealing element 30 is set to be a closed opening, and after the medium with pressure is filled, the outlet 302 is deformed under the action of the medium with pressure to open; after the medium (gas/liquid) with a certain pressure stops flowing in, the outlet 302 of the self-cleaning sealing member 30 is deformed and closed again.
Further, in this embodiment, the outlet 302 of the self-cleaning sealing member 30 is formed by two elastic tabs 31 and 32 in a clearance fit, and the two elastic tabs 31 and 32 are clamped by the insert plate 20 and the inner wall of the insert plate slideway 12 to be deformed and closed. The elastic tabs 31, 32 are formed by integrally extending the self-cleaning seal 30. The elastic laps 31, 32 are in a V-shaped structure, and the sharp corners of the two elastic laps 31, 32 are correspondingly matched to form the outlet 302. That is, the elastic tabs 31, 32 are gradually reduced in thickness in the outward extending direction and are easily deformed by an external force.
Still further, in the present embodiment, the angle B or C of the elastic laps 31, 32 is 10 ° to 45 °, which can produce a good elastic deformation capability.
Further, in this embodiment, the two elastic laps 31, 32 cooperate to form a discharge channel 305 shaped like a Chinese character 'ba', a wide opening of the discharge channel 305 connects with the transmission channel 303, and a sharp opening of the discharge channel 305 is the outlet 302. By adopting the splayed discharge channel 305, in the process that a medium with pressure is conveyed to the outlet 302 through the conveying channel 303, the flow cross section is smaller and smaller, the flow speed and the pressure on the closed outlet can be increased, the outlet 302 is driven to be opened and is sprayed out through the outlet 302, the sprayed pressure is greatly increased, and the cleaning force is stronger.
Still further, in the present embodiment, the included angle a of the discharge passage 305 is 10 ° to 60 °, so as to ensure the pressurization effect.
Still further, in this embodiment, the transfer channel 303 is formed with a storage chamber 304, and the wide mouth of the discharge channel 305 is connected to the storage chamber 304. The storage cavity 304 can temporarily store media and can store larger pressure, and when the outlet 302 is just opened, the initial pressure of the ejection is larger, so that larger impact force can be formed on the sealing matching surface of the inserting plate 20, and the cleaning effect is better. Of course, in other embodiments, this is not limiting.
Further, in this embodiment, a conventional sealing member 40, such as a sealing filler, is further disposed between the inserting plate 20 and the valve body 10, and the conventional sealing member 40 is disposed on a side of the self-cleaning sealing member 30 away from the material conveying channel 11, so as to achieve multi-layer sealing and better sealing effect. This structure can be understood as: the self-cleaning sealing element 30 is simply added on the original basis, the original design structure is not required to be modified too much, and the design and technical transformation cost is reduced. Of course, in other embodiments, the self-cleaning seal 30 may be used directly to effect sealing.
Further, in this embodiment, the valve body 10 is provided with a yielding channel 101 corresponding to the inlet 301 of the self-cleaning sealing member 30, and a pipeline connecting the inlet 301 of the self-cleaning sealing member 30 and the pressure source is sealingly inserted into the yielding channel, so as to implement layout. Of course, in other embodiments, the inlet 301 of the self-cleaning sealing member 30 may be directly exposed to the surface of the valve body 10.
Example two
The self-cleaning gate valve provided by the embodiment has substantially the same structure as that of the first embodiment, and the difference is that: referring to fig. 4 to 6, in the present embodiment, an elastic sealing structure corresponding to the outlet 302 is disposed in the conveying passage 303 of the self-cleaning sealing member 30, and the elastic sealing structure includes: an elastic member 34 and a stopper 33, wherein the stopper 33 is abutted against one side of the outlet 302 from the other side by the elastic force of the elastic member 34 to realize the self-closing of the outlet 302.
Under the natural state (without external force), the blocking block 33 is abutted against the other side of the outlet 302 from one side under the elastic force of the elastic element 34 to realize the self-closing of the outlet 302, and the self-cleaning sealing element 30 can be made of inelastic or slightly elastic material, so that the requirement on the material is low. After the medium having a pressure is filled, the medium pressure impacts the stopper 33, so that the stopper 33 moves in the opposite direction against the elastic force of the elastic member 34 to open the outlet 302.
Further, the blocking block 33 has an inclined surface and forms an "eight" shaped discharge channel 306 with the inner wall of the transmission channel 303, and the tip of the discharge channel 306 corresponds to the outlet 302. By adopting the splayed discharge channel 306, when a medium with pressure is conveyed to the outlet 302 through the conveying channel 303, the flow section is smaller and smaller, so that the pressure on the barrier block can be increased, and the barrier block 33 is better driven to overcome the elastic force of the elastic element 34 to move reversely to open the outlet 302; and the medium is sprayed out through the outlet 302, the sprayed pressure is greatly increased, and the cleaning force is stronger.
Still further, the transfer channel 303 is formed with a storage chamber 304, and the wide mouth of the discharge channel 306 is connected to the storage chamber 304. The storage cavity 304 can temporarily store media and can store larger pressure, and when the outlet 302 is just opened, the initial pressure of the ejection is larger, so that larger impact force can be formed on the sealing matching surface of the inserting plate 20, and the cleaning effect is better. Of course, in other embodiments, this is not limiting.
Furthermore, in this embodiment, the included angle K of the discharge passage 306 is 25 ° to 60 °, so as to ensure the pressurization effect and better apply a reverse force to the stopper 33, so that the stopper 33 can be pushed away more easily.
Further, in this embodiment, the blocking block 33 has an abutting surface abutting against and closing the outlet side wall, and the width H of the abutting surface is greater than 1mm to ensure the reverse blocking capability.
Further, in the present embodiment, the elastic member 34 is a spring, which is easy to obtain and assemble, but in other embodiments, other elastic members may be used.
The technical points of the scheme are as follows:
1. utilize the structure of this patent, can erode, clean sealed fitting surface, the life of extension push-pull valve prevents to reveal.
2. Compared with the traditional fully-closed gate valve, the self-cleaning gate valve is more reliable in sealing and longer in service life.
3. If the structure of this scheme is reformed transform on traditional push-pull valve's basis to need not to do too much modification to original design structure, reduced design and technical transformation cost.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A self-cleaning gate valve comprises a gate and a valve body with a material conveying channel, wherein a gate slideway which vertically penetrates to the material conveying channel is further formed in the valve body, the gate can be plugged and pulled on the gate slideway, and plugging and pulling of the gate can plug or open the material conveying channel; the method is characterized in that: still including sealed self-cleaning sealing member that sets up between picture peg and picture peg slide, self-cleaning sealing member has entry, export and is formed at inside and the transmission path who communicates entry and export of sealing member, self-cleaning sealing member's entry is used for connecting the pressure source, self-cleaning sealing member's export sets up towards the direction of the biography material passageway of valve body, and corresponds the picture peg, self-cleaning sealing member's export is self-closing structure, and follows open under the impact of the medium that the entry got into.
2. The self-cleaning gate valve of claim 1, wherein: the outlet of the self-cleaning sealing element is clamped by the inner walls of the inserting plate and the inserting plate slideway to deform and close.
3. The self-cleaning gate valve of claim 2, wherein: the outlet of the self-cleaning sealing element is formed by two elastic overlap edges in clearance fit, and the two elastic overlap edges are clamped by the inner walls of the plugboard and the plugboard slideway to deform and close.
4. The self-cleaning gate valve of claim 3, wherein: the elastic overlap edge is in a V-shaped structure, and the sharp corners of the two elastic overlap edges are correspondingly matched to form the outlet.
5. The self-cleaning gate valve of claim 3, wherein: the two elastic laps are matched to form a splayed discharge channel, a wide opening of the discharge channel is connected with the transmission channel, and a sharp opening of the discharge channel is the outlet.
6. The self-cleaning gate valve of claim 5, wherein: and a storage cavity is formed on the transmission channel, and the wide port of the discharge channel is connected with the storage cavity.
7. The self-cleaning gate valve of claim 5, wherein: the included angle of the discharge channel is 10-60 degrees.
8. The self-cleaning gate valve of claim 1, wherein: an elastic sealing structure corresponding to an outlet is arranged in a transmission channel of the self-cleaning sealing piece, and the elastic sealing structure comprises: the self-closing device comprises an elastic element and a stop block, wherein the stop block is abutted against the other side of the outlet from one side of the outlet under the action of the elastic force of the elastic element so as to realize the self-closing of the outlet.
9. The self-cleaning gate valve of claim 8, wherein: the blocking block is provided with an inclined plane and forms a splayed discharge channel with the inner wall of the transmission channel, and the sharp opening of the discharge channel corresponds to the outlet.
10. The self-cleaning gate valve of claim 9, wherein: and a storage cavity is formed on the transmission channel, and the wide port of the discharge channel is connected with the storage cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920889630.7U CN210014041U (en) | 2019-06-13 | 2019-06-13 | Automatically cleaning push-pull valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920889630.7U CN210014041U (en) | 2019-06-13 | 2019-06-13 | Automatically cleaning push-pull valve |
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| Publication Number | Publication Date |
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| CN210014041U true CN210014041U (en) | 2020-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920889630.7U Active CN210014041U (en) | 2019-06-13 | 2019-06-13 | Automatically cleaning push-pull valve |
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| CN (1) | CN210014041U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107706A (en) * | 2019-06-13 | 2019-08-09 | 集美大学 | A kind of automatically cleaning gate valve |
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2019
- 2019-06-13 CN CN201920889630.7U patent/CN210014041U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107706A (en) * | 2019-06-13 | 2019-08-09 | 集美大学 | A kind of automatically cleaning gate valve |
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