CN210088042U - Gate valve with good sealing performance - Google Patents
Gate valve with good sealing performance Download PDFInfo
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- CN210088042U CN210088042U CN201920922460.8U CN201920922460U CN210088042U CN 210088042 U CN210088042 U CN 210088042U CN 201920922460 U CN201920922460 U CN 201920922460U CN 210088042 U CN210088042 U CN 210088042U
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Abstract
The utility model discloses a gate valve with good sealing performance, which comprises a valve body, wherein a valve port and a valve plate corresponding to the valve port are arranged inside the valve body, a control mechanism used for controlling the valve plate to move is arranged inside the valve body, an upper sealing mechanism and a lower sealing mechanism which are respectively positioned at the upper end and the lower end of the valve port are arranged inside the valve body, the upper sealing mechanism comprises an upper sealing plate fixed at the top end of the valve port, a socket corresponding to the valve plate is arranged on the upper sealing plate, packing is symmetrically arranged at two sides of the socket, a packing seat fixed with the upper sealing plate is arranged at the outer side of the packing, a pressing plate used for pressing the packing is arranged at the top end of the packing; the lower sealing mechanism comprises a lower sealing plate fixed at the lower end of the valve port, the lower sealing plate is matched with the bottom of the valve body to form a lower sealing cavity, and an inflation connector communicated with the lower sealing cavity is arranged at the bottom end of the valve body. The utility model discloses simple structure, it is sealed effectual, can effectively guarantee the normal stable work of push-pull valve.
Description
Technical Field
The utility model relates to a technical field is made to the valve body, concretely relates to push-pull valve that sealing performance is good.
Background
The sealing gate valve is widely applied to industrial enterprises and public institutions such as metallurgy, chemical industry, cement industry, mining industry and the like. The technical requirements for the mechanical sealing gate valve are as follows: good sealing performance, flexible and convenient operation and long service life. The current various mechanical seal gate valves have the common problems that: the sealing performance is poor due to the unreasonable structure of the sealing element; because the seal is easily worn and cannot be compensated, the sealing performance is gradually deteriorated, the efficiency of the gate valve is reduced, and even the valve is disabled.
Therefore, it is necessary to develop a sealing mechanism of a new gate valve.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a push-pull valve that sealing performance is good, this push-pull valve simple structure, it is sealed effectual, can effectively guarantee the normal stable work of push-pull valve.
In order to realize the purpose, the technical scheme of the utility model is that:
a gate valve with good sealing performance comprises a valve body, wherein a valve port and a valve plate corresponding to the valve port are arranged in the valve body, a control mechanism used for controlling the valve plate to move is arranged in the valve body, an upper sealing mechanism and a lower sealing mechanism which are respectively positioned at the upper end and the lower end of the valve port are arranged in the valve body, the upper sealing mechanism comprises an upper sealing plate fixed at the top end of the valve port, a socket corresponding to the valve plate is formed in the upper sealing plate, packing seats fixed with the upper sealing plate are symmetrically arranged on two sides of the socket, a packing seat fixed with the upper sealing plate is arranged on the outer side of the packing, a pressing plate used for pressing the packing is arranged at the top end of the packing, and the valve plate enters the valve port through a gap; the lower sealing mechanism comprises a lower sealing plate fixed at the lower end of the valve port, the lower sealing plate is matched with the bottom of the valve body to form a lower sealing cavity, and an inflation connector communicated with the lower sealing cavity is arranged at the bottom end of the valve body.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the upper and lower ends of the valve port of the utility model are respectively provided with the upper sealing mechanism and the lower sealing mechanism, which can effectively ensure the sealing performance of the gate valve and avoid the side leakage from the valve port;
2. the upper sealing mechanism of the utility model comprises an upper sealing plate which isolates the valve port, and a plug board enters the valve port through a socket on the upper sealing plate; packing is correspondingly arranged on two sides of the socket, and the packing is fixed by the packing seat and the pressure plate, so that the packing cannot move when the valve plate moves; the packing and the valve plate are matched to seal the socket, so that the sealing of the top of the valve port is ensured during movement, the whole structure is simple, the work is stable, and the higher sealing effect is realized;
3. the utility model discloses lower sealing mechanism is through being equipped with the closing plate at the valve port lower extreme, and the closing plate forms lower seal chamber with the cooperation of valve body bottom, aerifys for lower seal chamber through aerifing the interface for the valve port lower extreme is in the atmoseal state, has guaranteed sealing performance.
Furthermore, control mechanism includes assorted lead screw and nut, the nut with the valve plate top is fixed, the lead screw lower extreme pass through the helicitic texture with the nut is connected, and the lead screw upper end is passed the valve body is connected with drive arrangement.
By adopting the scheme, the screw rod is controlled to rotate through the driving device, so that the valve plate is driven to lift, the screw rod is stable in transmission work, and the load is large.
Further, the driving device comprises a hand wheel arranged above the valve body.
Furthermore, the cross-section of clamp plate is the type of falling L, and clamp plate one end compresses tightly the packing top, the other end through two bolts with the channel-section steel is fixed.
Through adopting above-mentioned scheme, can come the packing force of control clamp plate to the packing through adjusting two bolts to guarantee the sealed effect that compresses tightly of packing, also can accomplish the installation and the change of packing fast through dismantling the clamp plate simultaneously.
Furthermore, guide grooves corresponding to the valve plate are symmetrically arranged on two sides of the valve port.
By adopting the scheme, the guide grooves limit the transverse displacement of the valve plate, and the excessive displacement of the two sides of the valve plate under stress is avoided.
Furthermore, the upper sealing plate is a channel steel, the socket is arranged at the center of the bottom surface of the channel steel, and the packing, the packing seat and the pressing plate are arranged on the bottom surface of the channel steel.
Through adopting above-mentioned scheme, the both sides face of channel-section steel is used for protecting sealing mechanism, further improves sealed effect simultaneously, avoids packing, packing seat and clamp plate to receive external environment influence.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a cross-sectional view a-a of fig. 1.
Shown in the figure:
1. a valve body;
2. a valve port;
3. a valve plate;
4. channel steel; 401. a socket;
5. packing;
6. a packing base;
7. pressing a plate;
8. a lower sealing plate;
9. a lower sealed cavity;
10. an inflation interface;
11. a screw rod;
12. a nut;
13. a hand wheel;
14. a guide groove;
15. double bolts.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1-2, the gate valve with good sealing performance provided by this embodiment includes a valve body 1, and a valve port 2 and a valve plate 3 corresponding to the valve port 2 are disposed inside the valve body 1.
The valve body 1 is internally provided with a control mechanism for controlling the movement of the valve plate 3, the control mechanism comprises a screw rod 11 and a nut 12 which are matched, the nut 12 is fixed with the top end of the valve plate 3, the lower end of the screw rod 11 is connected with the nut 12 through a thread structure, the upper end of the screw rod 11 penetrates through the valve body 1 and is connected with a driving device, and the driving device comprises a hand wheel 13 arranged above the valve body 1.
The lead screw 11 is controlled to rotate by the hand wheel 13, so that the valve plate 3 is driven to lift, the lead screw 11 is stable in transmission work, and the load is large.
Be equipped with upper seal mechanism and the lower seal mechanism that is located both ends about the valve port 2 respectively in the valve body 1, upper seal mechanism is including fixing the upper seal plate on the 2 tops of valve port, set up the socket 401 that corresponds with valve plate 3 on the upper seal plate, socket 401 bilateral symmetry is provided with packing 5, the packing 5 outside is equipped with the packing seat 6 fixed with the upper seal plate, packing 5 top is equipped with the clamp plate 7 that is used for compressing tightly packing 5, valve plate 3 is through the clearance of a pair of clamp plate 7, the clearance of a pair of packing 5 and socket 401 get into inside the valve port 2.
The upper sealing mechanism comprises an upper sealing plate, the upper sealing plate isolates the valve port 2, and an insertion plate enters the valve port 2 through a socket 401 on the upper sealing plate; packing 5 is correspondingly arranged on two sides of the socket 401, the packing 5 is fixed by a packing seat 6 and a pressure plate 7, and the packing 5 cannot move when the valve plate 3 moves; the packing 5 and the valve plate 3 are matched to seal the socket 401, so that the top of the valve port 2 is ensured to be sealed during movement, the whole structure is simple, the work is stable, and a higher sealing effect is realized;
the upper seal plate is channel-section steel 4, and socket 401 sets up at channel-section steel 4's inslot bottom surface center, and packing 5, packing seat 6 and clamp plate 7 all set up on channel-section steel 4's inslot bottom surface.
The both sides face of channel-section steel 4 is used for protecting upper seal mechanism, further improves sealed effect simultaneously, avoids packing 5, packing seat 6 and clamp plate 7 to receive external environment influence.
The cross-section of clamp plate 7 is the type of falling L, and clamp plate 7 one end compresses tightly packing 5 top, and the other end is fixed with channel-section steel 4 through two bolts 15.
Can come the packing force of control clamp plate 7 to packing 5 through adjusting double bolt 15 to guarantee packing 5's the sealed effect that compresses tightly, also can accomplish packing 5's installation and change fast through dismantling clamp plate 7 simultaneously.
The lower sealing mechanism comprises a lower sealing plate 8 fixed at the lower end of the valve port 2, the lower sealing plate 8 is matched with the bottom of the valve body 1 to form a lower sealing cavity 9, and an inflation connector 10 communicated with the lower sealing cavity 9 is arranged at the bottom end of the valve body 1.
The lower sealing mechanism is provided with a sealing plate through the lower end of the valve port 2, the sealing plate is matched with the bottom of the valve body 1 to form a lower sealing cavity 9, and the lower sealing cavity 9 is inflated through an inflation connector 10, so that the lower end of the valve port 2 is in an air sealing state, and the sealing performance is ensured.
The guide grooves 14 limit the transverse displacement of the valve plate 3 and avoid the excessive displacement of the two sides of the valve plate 3 under stress.
The upper and lower both ends of this embodiment valve port 2 are provided with sealing mechanism and lower sealing mechanism respectively, can effectively guarantee the sealing performance of push-pull valve, avoid by valve port 2 side leakage.
In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (6)
1. A gate valve with good sealing performance is characterized by comprising a valve body, wherein a valve port and a valve plate corresponding to the valve port are arranged in the valve body, a control mechanism for controlling the valve plate to move is arranged in the valve body, an upper sealing mechanism and a lower sealing mechanism which are respectively positioned at the upper end and the lower end of the valve port are arranged in the valve body, the upper sealing mechanism comprises an upper sealing plate fixed at the top end of the valve port, a socket corresponding to the valve plate is formed in the upper sealing plate, packing is symmetrically arranged at two sides of the socket, a packing seat fixed with the upper sealing plate is arranged on the outer side of the packing, a pressing plate for pressing the packing is arranged at the top end of the packing, and the valve plate enters the valve port through a gap between the pair of pressing plates, a gap between; the lower sealing mechanism comprises a lower sealing plate fixed at the lower end of the valve port, the lower sealing plate is matched with the bottom of the valve body to form a lower sealing cavity, and an inflation connector communicated with the lower sealing cavity is arranged at the bottom end of the valve body.
2. The gate valve with good sealing performance according to claim 1, wherein the control mechanism comprises a screw rod and a nut which are matched, the nut is fixed to the top end of the valve plate, the lower end of the screw rod is connected with the nut through a threaded structure, and the upper end of the screw rod penetrates through the valve body and is connected with a driving device.
3. The gate valve with good sealing performance according to claim 2, wherein the driving device comprises a hand wheel arranged above the valve body.
4. The gate valve with good sealing performance according to claim 1, wherein the cross section of the pressure plate is of an inverted L shape, one end of the pressure plate is tightly pressed on the top of the packing, and the other end of the pressure plate is fixed with the upper sealing plate through a double bolt.
5. The gate valve with good sealing performance according to claim 1, wherein guide grooves corresponding to the valve plate are symmetrically arranged on two sides of the valve port.
6. The gate valve with good sealing performance according to any one of claims 1 to 5, wherein the upper sealing plate is a channel steel, the socket is arranged at the center of the bottom surface of the channel steel, and the packing, the packing seat and the pressing plate are arranged on the bottom surface of the channel steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920922460.8U CN210088042U (en) | 2019-06-18 | 2019-06-18 | Gate valve with good sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920922460.8U CN210088042U (en) | 2019-06-18 | 2019-06-18 | Gate valve with good sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210088042U true CN210088042U (en) | 2020-02-18 |
Family
ID=69483440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920922460.8U Active CN210088042U (en) | 2019-06-18 | 2019-06-18 | Gate valve with good sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210088042U (en) |
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2019
- 2019-06-18 CN CN201920922460.8U patent/CN210088042U/en active Active
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