CN210687032U - Hydraulic open type gate valve - Google Patents
Hydraulic open type gate valve Download PDFInfo
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- CN210687032U CN210687032U CN201921181352.6U CN201921181352U CN210687032U CN 210687032 U CN210687032 U CN 210687032U CN 201921181352 U CN201921181352 U CN 201921181352U CN 210687032 U CN210687032 U CN 210687032U
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Abstract
The utility model relates to a hydraulic open-type gate valve, which comprises a valve body, a valve plate and a driving mechanism, wherein the valve cavity is arranged in the valve body, and the driving mechanism drives the valve plate to be inserted into the valve cavity to make the valve in a closed state or to draw the valve plate out of the valve cavity to the valve body to make the valve in an open state; the valve body is provided with a valve plate frame, and the driving mechanism drives the valve plate frame to be inserted into or drawn out of the valve cavity; the valve plate comprises a first blind plate and a second blind plate, a plurality of single-action oil cylinders are distributed between the first blind plate and the second blind plate, and sealing structures are respectively arranged on the outer surface of the first blind plate and the outer surface of the second blind plate. Under the action of a disc spring in the single-acting oil cylinder, the single-acting oil cylinder extends out to enable the first blind plate and the second blind plate to move in a state of being separated from each other, so that a sealing structure outside the first blind plate and one side of the inner wall of the valve cavity form contact sealing, a sealing structure outside the second blind plate and the other side of the inner wall of the valve cavity form contact sealing, and the elastic force of the disc springs in the single-acting oil cylinders is greater than the pressure of a medium flowing through the valve body, so that the sealing property between the valve plate and the valve body is ensured.
Description
Technical Field
The utility model relates to the technical field of valves, concretely relates to open-type push-pull valve is moved to liquid.
Background
The gate valve commonly used, its structure is mostly through the valve rod drive valve plate motion in order to realize opening and closing, and the valve plate passes through sealing device and valve pocket sealing connection. In the moving process of the valve plate, friction exists between the valve plate and the sealing device, and the sealing device is easy to damage after long-time use, so that the sealing reliability is poor.
Disclosure of Invention
In view of the above problems, the utility model aims at providing a good open-type push-pull valve surges of sealing reliability.
Realize the technical scheme of the utility model as follows
The hydraulic open type gate valve comprises a valve body, a valve plate and a driving mechanism, wherein a valve cavity is formed in the valve body, and the driving mechanism drives the valve plate to be inserted into the valve cavity to enable the valve to be in a closed state or extracts the valve plate from the valve cavity to the valve body to enable the valve to be in an open state; the valve body is provided with a valve plate frame, and the driving mechanism drives the valve plate frame to be inserted into or drawn out of the valve cavity; the valve plate comprises a first blind plate and a second blind plate which are assembled in a valve plate frame to form a separated or combined motion, a plurality of single-action oil cylinders are distributed between the first blind plate and the second blind plate, the cylinder bodies of the single-action oil cylinders are connected with the first blind plate, the piston rods of the single-action oil cylinders are connected with the second blind plate, and sealing structures which form a seal with the valve cavity are respectively arranged on the outer surface of the first blind plate and the outer surface of the second blind plate.
By adopting the technical scheme, when in use, the single-acting oil cylinders are contracted to enable the first blind plate and the second blind plate to move in a matching state, so that the thicknesses of the first blind plate and the second blind plate are reduced, then the valve plate is driven to be integrally inserted into the valve cavity through the driving mechanism, abrasion caused by friction between the valve plate and the valve body in the inserting process of the valve plate is avoided, the contraction force of the single-action oil cylinder is cancelled after the valve plate is inserted into the valve cavity, under the action of a disc spring in the single-action oil cylinder, the single-action oil cylinder extends out to enable the first blind plate and the second blind plate to form a separated state movement, so that the sealing structure outside the first blind plate forms contact sealing with one side of the inner wall of the valve cavity, the sealing structure outside the second blind plate forms contact sealing with the other side of the inner wall of the valve cavity, the elastic force of the disc springs in the single-acting oil cylinders is greater than the pressure of a medium flowing through the valve body, so that the sealing property between the valve plate and the valve body is ensured.
Furthermore, a plurality of limiting blocks between the first blind plate and the second blind plate are fixedly arranged on the inner side of the valve plate frame, the limiting blocks are distributed on the inner periphery of the valve plate frame, and limiting rods for limiting the first blind plate and the second blind plate when the first blind plate and the second blind plate are combined are fixedly arranged on the limiting blocks.
Furthermore, a plurality of inner supporting pieces which are propped against the inner side of the valve plate frame are respectively assembled on the first blind plate and the second blind plate, and the inner supporting pieces are adjusting screws.
Furthermore, the valve plate frame comprises an upper frame, a lower frame and a middle frame which fixedly connects the upper frame and the lower frame, and the upper frame, the lower frame and the middle frame enclose a square shape.
Furthermore, a lower roller group which is positioned below the lower frame and supports the lower frame and an upper roller group which is positioned above the lower frame and limits the lower frame are arranged at the lower part in the valve body; a bearing and guiding space for the lower frame to pass through is formed between the lower roller group and the upper roller group so as to form bearing and guiding for the lower frame;
furthermore, the upper part in the valve body is provided with a retaining roller group for retaining two sides of the upper frame.
Further, actuating mechanism includes power supply, sprocket to and the chain of fixed mounting on the valve body frame, the power supply drives the sprocket and rotates around self, the transmission cooperation between sprocket and the chain.
Furthermore, a travel switch is installed on the valve body, and a trigger piece for triggering the travel switch is installed on the valve plate frame.
Furthermore, the first blind plate and the second blind plate are connected through a corrugated pipe, so that a closed space is formed between the inner sides of the first blind plate and the second blind plate.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic front structural view of the present invention;
FIG. 3 is a schematic structural view of the valve body of the present invention;
FIG. 4 is a schematic structural view of the valve plate of the present invention;
FIG. 5 is a perspective view of the enlarged portion A of FIG. 2;
fig. 6 is a schematic side view of the travel switch of the present invention;
FIG. 7 is a cross-sectional view taken at B-B of FIG. 2;
FIG. 8 is a schematic view of the internal structure of the single-acting cylinder of the present invention;
fig. 9 is a schematic structural diagram of a valve plate frame in the present invention;
in the drawing, 1 is a valve body, 2 is a valve plate, 3 is a valve cavity, 4 is a notch, 5 is a valve plate frame, 6 is a first blind plate, 7 is a second blind plate, 8 is a mounting block, 9 is a connecting block, 10 is a single-acting oil cylinder, 11 is a cylinder body, 12 is a cylinder cover, 13 is a disc spring guide sleeve, 14 is a disc spring guide device, 15 is a disc spring space, 16 is an oil cavity, 17 is an annular groove, 18 is a sealing ring, 19 is a limiting block, 20 is a limiting rod, 21 is a bottom plate, 22 is an inner support member, 23 is a lock nut, 24 is an upper frame, 25 is a lower frame, 26 is a middle frame, 27 is a lower roller set, 28 is an upper roller set, 29 is a roller seat, 30 is an assembling shaft, 31 is a roller, 32 is a roller seat, 33 is a roller wheel, 34 is a power source, 35 is a chain, 36 is a travel switch, 37 is a trigger member, 38 is an inner collision block, 39 is a limit switch mounting plate, and 40, 41 is a limit switch shaft, 42 is a spring, and 43 is a flange short pipe.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
As shown in fig. 1-9, the hydraulic open gate valve comprises a valve body 1, a valve plate 2 and a driving mechanism, wherein flange short pipes 43 are arranged on two sides of the valve body for communication, a valve cavity 3 is arranged in the valve body, notches 4 for inserting and drawing out the valve plate are arranged on two sides of the valve body, and in the using process, the driving mechanism drives the valve plate to be inserted into the valve cavity through the notches, so that the valve is in a closed state, or the valve plate is drawn out from the valve cavity to the valve body through a socket, so that the valve is in an open state.
The valve body is provided with a valve plate frame 5, the valve plate frame can be inserted into the valve cavity or drawn out of the valve cavity through the notch, the valve plate frame is used as a bearing part of the valve plate, and the valve plate frame is driven by a driving mechanism to be inserted into the valve cavity or drawn out; the structure of the valve plate comprises a first blind plate 6 and a second blind plate 7 which are assembled in a valve plate frame to form a separation or combination motion, and the first blind plate and the second blind plate are connected through a corrugated pipe to form a closed space between the inner sides of the first blind plate and the second blind plate; the planes of the two blind plates are good in leveling behavior so as to facilitate the stability in the later phase separation or phase combination process; the peripheries of the two blind plates are provided with mounting blocks 8 and connecting blocks 9 which extend outwards, a plurality of single-action oil cylinders 10 are distributed between the first blind plate and the second blind plate, and the single-action oil cylinders are connected between the corresponding mounting blocks of the two blind plates; a plurality of single-acting oil cylinders are uniformly distributed between the two blind plates so as to ensure the stability of the oil cylinders for driving the blind plates to separate and combine. The single-acting oil cylinder comprises a cylinder body 11, a cylinder cover 12, a disc spring guide sleeve 13 assembled in the cylinder body in a sliding mode, a disc spring guide device 14 assembled in the disc spring guide sleeve, an inner side of the cylinder cover, an outer side of the disc spring guide device and a disc spring space 15 formed between the inner side of the disc spring guide sleeve and the inner side of the cylinder body for assembling the disc spring, an oil cavity 16 is formed between the periphery of the disc spring guide sleeve and the inner wall of the cylinder body, hydraulic oil is introduced into the oil cavity, the disc spring guide sleeve contracts towards the inside of the cylinder body, and when the oil pressure in the oil cavity is released, the disc spring guide sleeve extends out.
The cylinder body of the single-acting oil cylinder is connected with a first blind plate, a piston rod (a disc spring guide sleeve) of the single-acting oil cylinder is connected with a second blind plate, sealing structures which form sealing with a valve cavity are respectively arranged on the outer surface of the first blind plate and the outer surface of the second blind plate, specifically, annular grooves 17 are formed in the outer surfaces of the first blind plate and the second blind plate, sealing rings 18 are assembled in the annular grooves, the heights of the sealing rings are higher than the outer surfaces of the blind plates, and when the disc springs extend out, the sealing rings on the two blind plates respectively abut against the two sides of the inner wall of the valve cavity to form sealing, so that the valve is in a closed.
The inboard fixed (welding or bolted connection) of valve plate frame is provided with a plurality of stopper 19 that are in between first blind plate, the second blind plate, and a plurality of stoppers distribute at valve plate frame inner periphery, and in this application picture, it is equipped with 8 stoppers in the valve plate frame to show, forms spacing gag lever post 20 when the action is closed mutually to first blind plate, second blind plate to fixed being provided with on the stopper. The optimal arrangement mode of the limiting rod is that the limiting rod is perpendicular to the plane where the two blind plates are located, and the length of the limiting rod extending out of the two sides of the limiting block is the same. When the single-acting oil cylinder contracts, the limiting rod props against the inner side of the blind plate to form contraction limiting. The limiting block is fixed in the valve plate frame through the bottom plate 21 and is vertically fixed on the bottom plate.
The first blind plate and the second blind plate are respectively provided with a plurality of inner supporting pieces 22 which are propped against the inner side of the valve plate frame, and the inner supporting pieces are adjusting screw rods. Connecting block 9 is in one side of installation piece 8, adjusting screw threaded connection is on the installation piece to lock through lock nut 23 from top to bottom, can make the screw rod top the tight degree in top on bottom plate 21 through adjusting screw, firstly can play certain limiting displacement, secondly can finely tune the position of blind plate on the valve plate frame, so that the position of blind plate suits with the position of valve pocket, guarantees that the valve plate inserts the valve pocket after, and the sealing washer on the blind plate can push up the sealed position in the valve pocket.
In practice, the valve plate frame comprises an upper frame 24, a lower frame 25, and a middle frame 26 for fixedly connecting the upper frame and the lower frame, wherein the upper frame, the lower frame and the middle frame enclose a square.
The lower part in the valve body is provided with a lower roller group 27 which is positioned below the lower frame and supports the lower frame, and an upper roller group 28 which is positioned above the lower frame and limits the lower frame; a bearing and guiding space for the lower frame to pass through is formed between the lower roller group and the upper roller group so as to form bearing and guiding for the lower frame; the upper and lower roller groups are respectively provided with two roller groups, two roller groups in the upper roller group are positioned on two sides of the upper part of the lower frame, and two roller groups in the lower roller group are positioned on two sides of the lower part of the lower frame; the roller group comprises a roller seat 29 mounted on the valve body and a roller 31 mounted on the roller seat through an assembly shaft 30, wherein the roller in the upper roller group is in rolling contact with the upper part of the lower frame, the roller in the lower roller group is in rolling contact with the lower part of the lower frame, and the roller is in contact with the frame to generate rolling supporting and guiding effects on the movement of the frame.
The upper part in the valve body is provided with two holding roller groups which respectively form holding to the two sides of the upper frame, the holding roller groups comprise roller seats 32 arranged on the valve body and rolling wheels 33 assembled on the roller seats, the rolling wheels are in contact with the side surfaces of the upper frame, the guiding and moving direction holding are formed for the movement of the frame, and the moving stability of the frame is improved.
The driving mechanism comprises a power source 34, a chain wheel and a chain 35 fixedly arranged at the bottom of the lower frame of the valve body frame, the power source drives the chain wheel to rotate around the chain wheel, and the chain wheel is in transmission fit with the chain. The power source can adopt an oil motor or an electric motor and the like, under the action of the power source, the chain wheel rotates, and the chain wheel and the chain are in meshed transmission, so that the valve body frame is driven to be inserted into the valve cavity or drawn out of the valve cavity.
A stroke switch 36 is attached to the valve body, and a trigger (pin) 37 for triggering the stroke switch is attached to the valve plate frame. The travel switch comprises an internal collision block 38, a limit switch mounting plate 39, an external collision block 40, a limit switch shaft 41 and two springs 42, wherein the limit switch mounting plate is assembled on the valve body, the limit switch shaft is rotatably assembled on the mounting plate, one end (inner end) of the limit switch shaft extends into the valve body, the other end (outer end) of the limit switch shaft is positioned outside the valve body, the internal collision block is installed at the inner end of the limit switch shaft, the external collision block is installed at the outer end of the limit switch shaft, the two springs are positioned on two sides of the external collision block, one end of each spring is hooked on the mounting plate, the other end of each spring is hooked on the external collision block, and the two springs promote the travel switch to reset when no external. When the valve plate frame is inserted into the valve cavity, when the trigger part triggers the internal collision block of the travel switch, the working state of the driving mechanism is switched, if the valve plate frame is inserted into the valve cavity, the power source provides power, when the trigger part triggers the travel switch, the power source stops providing stopping power, when the valve plate frame is pulled out, the power source provides reverse power, the chain wheel is enabled to rotate reversely, the chain and the valve plate frame are pushed to move outwards, the valve plate is separated from the valve cavity, and the valve is in an opening state.
Claims (8)
1. The hydraulic open type gate valve comprises a valve body, a valve plate and a driving mechanism, wherein a valve cavity is formed in the valve body, and the driving mechanism drives the valve plate to be inserted into the valve cavity to enable the valve to be in a closed state or extracts the valve plate from the valve cavity to the valve body to enable the valve to be in an open state; the valve is characterized in that a valve plate frame is arranged on the valve body, and a driving mechanism drives the valve plate frame to be inserted into or drawn out of the valve cavity; the valve plate comprises a first blind plate and a second blind plate which are assembled in a valve plate frame to form a separated or combined motion, a plurality of single-action oil cylinders are distributed between the first blind plate and the second blind plate, the cylinder bodies of the single-action oil cylinders are connected with the first blind plate, the piston rods of the single-action oil cylinders are connected with the second blind plate, and sealing structures which form a seal with the valve cavity are respectively arranged on the outer surface of the first blind plate and the outer surface of the second blind plate.
2. A hydraulic open-type gate valve according to claim 1, wherein a plurality of limiting blocks are fixedly arranged on the inner side of the valve plate frame and between the first blind plate and the second blind plate, the plurality of limiting blocks are distributed on the inner periphery of the valve plate frame, and limiting rods for limiting the first blind plate and the second blind plate when the first blind plate and the second blind plate are combined are fixedly arranged on the limiting blocks.
3. A hydraulic open-type gate valve according to claim 1, wherein said first and second blind plates are respectively provided with a plurality of internal supporting members against the inner side of the valve plate frame, the internal supporting members being adjusting screws.
4. A hydraulic open-type gate valve according to claim 1, wherein said valve plate frame comprises an upper frame, a lower frame, and an intermediate frame fixedly connecting the upper frame and the lower frame, the upper frame, the lower frame and the intermediate frame enclosing a square.
5. A hydraulic open-type gate valve according to claim 4, wherein a lower roller set located below the lower frame and supporting the lower frame and an upper roller set located above the lower frame and limiting the lower frame are provided at the lower portion inside the valve body; a bearing and guiding space for the lower frame to pass through is formed between the lower roller group and the upper roller group so as to form bearing and guiding for the lower frame;
the upper part in the valve body is provided with a retaining roller group which forms a retaining to the two sides of the upper frame.
6. A hydraulic open-type gate valve according to claim 1, wherein said drive mechanism includes a power source, a sprocket, and a chain fixedly mounted to the valve body frame, the power source driving the sprocket to rotate about itself, the sprocket and the chain being in driving engagement.
7. A hydraulic open-type gate valve according to claim 6, wherein a travel switch is mounted on said valve body, and a trigger member for triggering said travel switch is mounted on said valve plate frame.
8. A hydraulic open-type gate valve according to claim 1, wherein said first and second blind flanges are connected by a bellows to form a closed space between the inner sides thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921181352.6U CN210687032U (en) | 2019-07-25 | 2019-07-25 | Hydraulic open type gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921181352.6U CN210687032U (en) | 2019-07-25 | 2019-07-25 | Hydraulic open type gate valve |
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| Publication Number | Publication Date |
|---|---|
| CN210687032U true CN210687032U (en) | 2020-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921181352.6U Active CN210687032U (en) | 2019-07-25 | 2019-07-25 | Hydraulic open type gate valve |
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|---|---|
| CN (1) | CN210687032U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115219206A (en) * | 2022-08-31 | 2022-10-21 | 中国航发四川燃气涡轮研究院 | Engine cold and hot dipping system for high and low temperature starting test of aircraft engine |
| CN117515188A (en) * | 2024-01-04 | 2024-02-06 | 江苏特一机械股份有限公司 | Blind plate valve and use method |
-
2019
- 2019-07-25 CN CN201921181352.6U patent/CN210687032U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115219206A (en) * | 2022-08-31 | 2022-10-21 | 中国航发四川燃气涡轮研究院 | Engine cold and hot dipping system for high and low temperature starting test of aircraft engine |
| CN115219206B (en) * | 2022-08-31 | 2023-02-17 | 中国航发四川燃气涡轮研究院 | Engine cold and hot dipping system for high and low temperature starting test of aircraft engine |
| CN117515188A (en) * | 2024-01-04 | 2024-02-06 | 江苏特一机械股份有限公司 | Blind plate valve and use method |
| CN117515188B (en) * | 2024-01-04 | 2024-03-19 | 江苏特一机械股份有限公司 | Blind plate valve and use method |
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