CN216279472U - Water-blocking slide valve - Google Patents
Water-blocking slide valve Download PDFInfo
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- CN216279472U CN216279472U CN202122979793.4U CN202122979793U CN216279472U CN 216279472 U CN216279472 U CN 216279472U CN 202122979793 U CN202122979793 U CN 202122979793U CN 216279472 U CN216279472 U CN 216279472U
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- slide valve
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- wedge
- slide
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Abstract
A water blocking slide valve. Relate to valve technical field, especially relate to a slide valve blocks water. Comprises a valve body and a valve plate; the valve body comprises a door frame of a gantry structure and a slide valve seat; the slide valve seat is arranged on the rear side of the lower part of the door frame, and a pair of slide grooves is arranged on the front side of the lower part of the door frame; the slide valve seat is provided with a through hole matched with the inner diameter of the pipeline, and the valve plate is used for covering the through hole; a pair of sliding blocks is arranged on two sides of the valve plate and movably connected with the sliding groove; the lower limit structure is arranged between the sliding groove and the sliding block and comprises a limit wedge arranged on the surface of the sliding groove and a positioning wedge arranged on the surface of the sliding block. The utility model improves the selection of the sealing ring, adopts the copper sealing ring, and realizes reliable sealing by using the surface contact of a pair of copper sealing rings when the copper sealing ring is closed.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a water-blocking slide valve.
Background
Water-blocking slide valves are typically installed on the pipes of various ponds or wells and utilize valves in which a valve plate slides over a sealing surface to open or close fluid inlet and outlet passages to control fluid flow. The existing slide valve can not accurately control the valve plate to move in place, so that the slide valve is easy to be not tight and fluid leaks.
Chinese patent CN207080629U discloses a water-sealing slide valve, which comprises a valve body arranged at the end part of an embedded drain pipe, and a valve plate connected to the end part of the valve body in a sliding manner along the vertical direction, wherein a hand-operated opening and closing device drives the valve plate to move up and down, the bottom of the valve plate is provided with a positioning rod, and the positioning rod is provided with a limit switch; and a positioning block matched with the positioning rod is arranged on the wall body below the positioning rod. This technical scheme realizes the control of valve plate position through the locating lever of valve plate bottom, and the structure is complicated, and often there is the circumstances of siltation at the bottom of pond (channel) when not considering practical application. In addition, in practical application, the valve plate is difficult to ensure to be in a deterministic position under complex working conditions, and often the positioning rod cannot accurately extend into the positioning block, so that the closing failure of the sliding valve is caused.
Therefore, how to improve the closing reliability of the spool valve is a technical problem to be solved.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems, the utility model provides the water-blocking slide valve which is simple and convenient to operate and reliable to close.
The technical scheme of the utility model is as follows:
the water blocking slide valve comprises a valve body and a valve plate;
the valve body comprises a door frame of a gantry structure and a slide valve seat; the slide valve seat is arranged on the rear side of the lower part of the door frame, and a pair of slide grooves is arranged on the front side of the lower part of the door frame; the slide valve seat is provided with a through hole matched with the inner diameter of the pipeline, and the valve plate is used for covering the through hole;
a pair of sliding blocks is arranged on two sides of the valve plate and movably connected with the sliding groove;
the lower limit structure is arranged between the sliding groove and the sliding block and comprises a limit wedge arranged on the surface of the sliding groove and a positioning wedge arranged on the surface of the sliding block.
The limiting wedge is provided with an upper limiting wedge and a lower limiting wedge, and the positioning wedge is also provided with an upper positioning wedge and a lower positioning wedge which are matched with the positioning wedge;
the slope surface lowest point of the lower limit wedge is higher than the slope surface highest point of the upper limit wedge.
The slide valve seat faces towards the inner edge of the through hole orifice of the valve plate, a first copper seat ring is embedded in the plate surface of the valve plate, and a second copper seat ring is embedded in the plate surface of the valve plate, and the opposite surfaces of the first copper seat ring and the second copper seat ring are attached.
And a connecting flange is arranged on the rear side of the slide valve seat.
According to the water blocking slide valve, the valve plate and the valve body are conveniently positioned in the height direction through the matching of the positioning wedge and the limiting wedge, the reliability of closing the valve plate is improved, and the closing failure of the valve plate can be effectively avoided. Meanwhile, when the valve plate is completely closed downwards, the wedge structure applies an acting force towards the slide valve seat to the valve plate, so that the closing reliability is higher. In addition, under the condition of having the acting force, in order to further improve the sealing effect, the scheme improves the selection of the sealing ring, adopts the copper sealing ring, and utilizes the surface contact of a pair of copper sealing rings to realize reliable sealing when the copper sealing ring is closed.
Drawings
Figure 1 is a schematic view of the structure of the present invention,
figure 2 is a cross-sectional view of figure 1,
figure 3 is a schematic view of the semi-open state of the present invention,
figure 4 is a cross-sectional view of figure 3,
figure 5 is a schematic view of the structure of the valve body of the present invention,
figure 6 is a cross-sectional view of figure 5,
figure 7 is a schematic view of the construction of a valve plate according to the present invention,
fig. 8 is a cross-sectional view of fig. 7.
In the figure: 1-a wall body; 2-pipe, 21-pipe flange; 3-valve body, 31-slide valve seat, 311-copper seat ring I, 312-connecting flange, 32-door frame, 33-chute and 331-limit wedge; 4-valve plate, 41-slide block, 411-positioning wedge, and 42-copper seat ring II; 5-a screw rod.
Detailed Description
The utility model is further described below with reference to fig. 1-8.
The water-blocking slide valve is used for controlling the opening and closing of a pipeline 2 penetrating through a wall body 1 and comprises a valve body 3 and a valve plate 4;
the valve body 3 comprises a door frame 32 with a gantry structure and an annular slide valve seat 31; the slide valve seat 31 is arranged at the rear side of the lower part of the door frame 32, and the front side of the lower part of the door frame 32 is provided with a pair of slide grooves 33; the slide valve seat 31 is provided with a through hole matched with the inner diameter of the pipeline 2, and the valve plate 4 is used for covering the through hole;
a pair of sliding blocks 41 are arranged on two sides of the valve plate 4, and the sliding blocks 41 are movably connected with the sliding groove 33, so that the valve plate 4 can move up and down in the sliding groove 33 of the valve body 3;
a lower limit structure is arranged between the sliding groove 33 and the sliding block 41, and comprises a limit wedge 331 arranged on the inner surface of the sliding groove 33 and a positioning wedge 411 arranged on the outer surface of the sliding block 41. Referring to fig. 6, the limit wedge 331 is disposed obliquely downward; referring to fig. 8, the positioning wedge 411 is disposed obliquely upward. The lower extreme positions of the valve plate 4 are: when the positioning wedge 411 moves downwards and is attached to the limiting wedge 331, the downward stroke of the valve plate 4 is limited. The valve plate 4 can also be provided with a # -shaped reinforcing rib to reduce the dead weight of the valve plate 4. The top of the valve plate 4 is connected with a screw rod 5, and the screw rod 5 moves upwards or downwards under the control of a hoist, so that the valve plate 4 is driven to slide in the vertical direction, and the sliding valve is closed or opened.
The limiting wedge 331 is provided with an upper limiting wedge and a lower limiting wedge, and the positioning wedge 411 is also provided with an upper positioning wedge and a lower positioning wedge which are matched with the limiting wedge;
the lowest point of the slope surface of the lower limit wedge is higher than the highest point of the slope surface of the upper limit wedge, so that the movement interference is avoided, and the upward stroke of the valve plate 4 is prevented.
The slide valve seat 31 is embedded with a first copper seat ring 311 facing the inner edge of the through hole of the valve plate 4, a second copper seat ring 42 is embedded on the plate surface of the valve plate 4, and the opposite surfaces of the first copper seat ring 311 and the second copper seat ring 42 are attached. Two copper seat circles all adopt the copper alloy to make, and the roughness is high, and corrosion-resistant, stand wear and tear for the binding face can obtain reliable sealed.
The rear side of the slide valve seat 31 is provided with a connecting flange 312 for being in bolted connection with the pipeline flange 21 of the pipeline 2, which is convenient and reliable and does not need secondary grouting.
The disclosure of the present application also includes the following points:
(1) the drawings of the embodiments disclosed herein only relate to the structures related to the embodiments disclosed herein, and other structures can refer to general designs;
(2) in case of conflict, the embodiments and features of the embodiments disclosed in this application can be combined with each other to arrive at new embodiments;
the above embodiments are only examples disclosed in the present application, but the scope of the present disclosure is not limited thereto, and those skilled in the art should be able to change some of the technical features of the present disclosure within the scope of the present application.
Claims (4)
1. The water blocking slide valve comprises a valve body and a valve plate;
the valve body comprises a door frame of a gantry structure and a slide valve seat; the slide valve seat is arranged on the rear side of the lower part of the door frame, and a pair of slide grooves is arranged on the front side of the lower part of the door frame; the slide valve seat is provided with a through hole matched with the inner diameter of the pipeline, and the valve plate is used for covering the through hole;
it is characterized in that the preparation method is characterized in that,
a pair of sliding blocks is arranged on two sides of the valve plate and movably connected with the sliding groove;
the lower limit structure is arranged between the sliding groove and the sliding block and comprises a limit wedge arranged on the surface of the sliding groove and a positioning wedge arranged on the surface of the sliding block.
2. A water blocking slide valve according to claim 1, wherein said limiting wedges are provided with upper and lower limiting wedges, and said positioning wedges are also provided with upper and lower positioning wedges adapted thereto;
the slope surface lowest point of the lower limit wedge is higher than the slope surface highest point of the upper limit wedge.
3. The water blocking slide valve according to claim 1, wherein a first copper seat ring is embedded in the slide valve seat towards the inner edge of the through hole of the valve plate, a second copper seat ring is embedded in the plate surface of the valve plate, and opposite surfaces of the first copper seat ring and the second copper seat ring are attached.
4. A water-blocking slide valve as claimed in claim 1, wherein the rear side of the slide valve seat is provided with a connecting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122979793.4U CN216279472U (en) | 2021-11-30 | 2021-11-30 | Water-blocking slide valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122979793.4U CN216279472U (en) | 2021-11-30 | 2021-11-30 | Water-blocking slide valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216279472U true CN216279472U (en) | 2022-04-12 |
Family
ID=81040855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122979793.4U Active CN216279472U (en) | 2021-11-30 | 2021-11-30 | Water-blocking slide valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216279472U (en) |
-
2021
- 2021-11-30 CN CN202122979793.4U patent/CN216279472U/en active Active
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