CN212360843U - Gate valve with anti-aging and convenient to replace - Google Patents
Gate valve with anti-aging and convenient to replace Download PDFInfo
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- CN212360843U CN212360843U CN202020037626.0U CN202020037626U CN212360843U CN 212360843 U CN212360843 U CN 212360843U CN 202020037626 U CN202020037626 U CN 202020037626U CN 212360843 U CN212360843 U CN 212360843U
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Abstract
The utility model is suitable for a gate valve technical field provides a gate valve with ageing-proof is convenient for change, including gate valve body, valve gap, valve rod and valve plate, the fixed top that sets up at the gate valve body of valve gap, the valve rod sets up the inside at the valve gap, mutual screw-thread fit is connected between valve rod and valve gap, valve rod downwardly extending to the inside of gate valve body, it is provided with the valve plate to connect on the bottom of valve rod, the valve plate is mutually perpendicular with fluid direction of motion, the two sides bottom of valve plate is the slope setting and forms wedge base angle structure, be provided with the dogtooth on the two sides of valve plate, the dogtooth is provided with a plurality of, the both sides of valve plate are provided with the joint ring, the joint ring is connected with the inner wall of valve body. Through setting up the dogtooth on the valve plate, can avoid gate valve intracavity accumulation impurity, processing technology such as part surface nitriding or boronizing is equipped with the filling layer of polytetrafluoroethylene in addition, can alleviate equipment ageing effectively, increase of service life.
Description
Technical Field
The utility model belongs to the technical field of the gate valve, especially, relate to a gate valve with anti-aging is convenient for change.
Background
The gate valve is a shutter, the movement direction of the shutter is vertical to the fluid direction, and the gate valve can only be fully opened and fully closed and cannot be adjusted and throttled. Gate valves are sealed by the contact of the valve seat and the gate plate, and the sealing surface is usually bead-welded with a metallic material to increase wear resistance. The gate plate is divided into a rigid gate plate and an elastic gate plate according to the difference of the gate plate. When the gate valve controls the movement of fluid, the valve can age along with the influence of a plurality of factors, so that the service life is shortened, the service life of the valve is related to three factors, and the quality of the valve is the first factor; secondly, working conditions of valve use; and thirdly, whether the valve is installed and maintained correctly. Since there may be many substances contained in the fluid, the liquid in the solid state is not equal, and many adverse effects may be generated on the gate valve over time, such as residual impurities in the chamber, corrosion of parts, and the like. Therefore, the gate valve with the anti-aging function and convenient to replace is provided for the problem of gate valve aging.
SUMMERY OF THE UTILITY MODEL
The utility model provides a gate valve with anti-aging is convenient for change aims at solving the gate valve because of impurity or corrosivity in the fluid, the ageing problem of equipment or part of bringing.
The utility model discloses a realize like this, a gate valve with ageing-resistant is convenient for change, including gate valve body, valve gap, valve rod and valve plate, the fixed top that sets up at the gate valve body of valve gap, the valve rod sets up the inside at the valve gap, screw-thread fit is connected each other between valve rod and valve gap, valve rod downwardly extending to the inside of gate valve body, it is provided with the valve plate to connect on the bottom of valve rod, the valve plate is mutually perpendicular with fluid direction of motion, the two sides bottom of valve plate is the slope setting and forms wedge base angle structure, be provided with the dogtooth on the two sides of valve plate, the dogtooth is provided with a plurality of, the both sides of valve plate are provided with the joint ring, the joint ring is connected with the inner wall of valve body.
Preferably, the shape of the inner ring of the clamping ring is matched with the shape of the edge of the valve plate, and an accommodating groove is formed between the clamping rings and at the bottom edge of the valve plate.
Preferably, the junction of valve plate and valve rod is two-sided butt welding, the surface of valve plate is through surface treatment processes such as nitriding or boronizing, the dogtooth is located the lower half region of valve plate, dogtooth and valve plate integrated into one piece, form radian column structure between the surface of dogtooth and valve plate, the dogtooth is the back taper.
Preferably, a hand wheel is arranged at the top of the valve rod, a middle shaft of the hand wheel is connected with the valve rod, and a plurality of sealing rings are arranged at the joint of the valve rod and the valve cover.
Preferably, a packing layer is further arranged between the valve rod and the valve cover, and the main materials of the packing layer are flexible graphite and polytetrafluoroethylene raw materials.
Preferably, the both ends of gate valve body are provided with mounting flange, mounting flange sets up with the gate valve body is concentric, the last connecting bolt that is provided with of mounting flange and screw-thread fit each other is connected, connecting bolt is hexagon bolt, be equipped with between mounting flange and the connecting bolt and plate zinc or the chromium plating is handled.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a gate valve with ageing-resistant be convenient for change, through be provided with the dogtooth on the valve plate, can bring the fluid and remain the impurity in the valve and collude, and wash away by means of the fluid, avoid it to accumulate in the gate valve to lead to damaging the internals; the packing layer is arranged at the joint of the parts, so that the sealing structure not only has good sealing, but also can prevent corrosion and relieve the aging caused by corrosion of equipment.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
in the figure: 1-gate valve body, 2-valve cover, 3-valve rod, 31-hand wheel, 4-valve plate, 5-clamping ring, 6-convex tooth, 7-packing layer, 8-sealing ring, 9-mounting flange and 10-connecting bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a gate valve with ageing-resistant is convenient for change, includes gate valve body 1, valve gap 2, valve rod 3 and valve plate 4, valve gap 2 is fixed to be set up in gate valve body 1's top, valve rod 3 sets up the inside at valve gap 2, screw-thread fit each other is connected between valve rod 3 and valve gap 2, valve rod 3 downwardly extending to gate valve body 1's inside, it is provided with valve plate 4 to connect on valve rod 3's the bottom, valve plate 4 is mutually perpendicular with the direction of fluid motion, valve plate 4's two sides bottom is the slope setting and forms wedge base angle structure, be provided with dogtooth 6 on valve plate 4's the two sides, dogtooth 6 is provided with a plurality of, valve plate 4's both sides are provided with joint ring 5, joint ring 5 is connected with the inner wall of valve body.
In this embodiment, through rotating bracelet 31, when control valve rod 3 drove the up-and-down motion of valve plate 4, dogtooth 6 on the valve plate 4 can drive probably remaining material motion in the cavity, and then is washed away by the fluid, can effectively avoid remaining impurity in the gate valve, extension equipment life.
Furthermore, the shape of the inner ring of the clamping ring 5 is matched with the shape of the edge of the valve plate 4, and an accommodating groove is formed between the clamping rings 5 and at the bottom edge of the valve plate 4.
In this embodiment, the snap ring 5 and the valve plate 4 are engaged with each other to complete the opening and closing operation of the valve.
Further, the junction of valve plate 4 and valve rod 3 is two-sided butt welding, surface treatment processes such as nitriding or boronizing are passed through on the surface of valve plate 4, dogtooth 6 is located the lower half region of valve plate 4, dogtooth 6 and valve plate 4 integrated into one piece, form radian column structure between the surface of dogtooth 6 and valve plate 4, dogtooth 6 is the back taper.
In the embodiment, the surface treatment processes such as nitriding or boronizing can effectively protect the valve plate 4 from corrosion of substances in the fluid, relieve aging conditions and prolong the service life, and the structure of the convex teeth 6 can buffer scouring force, so that the valve plate 4 is less eroded by the fluid.
Further, a hand wheel 31 is arranged at the top of the valve rod 3, a middle shaft of the hand wheel 31 is located at the position where the valve rod 3 is connected, and a plurality of sealing rings 8 are arranged at the connecting position of the valve rod 3 and the valve cover 2.
In this embodiment, bracelet 31 is used for the lift of control valve rod 3, and then controls opening and shutting of valve plate 4, and sealing washer 8 makes and keeps sealed in the equipment.
Further, a packing layer 7 is arranged between the valve rod 3 and the valve cover 2, and the packing layer 7 is mainly made of flexible graphite and polytetrafluoroethylene raw materials.
In the embodiment, the packing layer 7 is mainly a flexible graphite adhesive gasket and a polytetrafluoroethylene gasket, which not only improves the sealing performance, but also reduces the corrosion and aging of the contact surface of the part.
Further, the both ends of gate valve body 1 are provided with mounting flange 9, mounting flange 9 sets up with the gate valve body 1 is concentric, be provided with connecting bolt 10 on mounting flange 9 and screw-thread fit each other is connected, connecting bolt 10 is the hex bolts, be equipped with between mounting flange 9 and the connecting bolt 10 and plate zinc or the chrome processing.
In this embodiment, the galvanization or chrome plating of the mounting connection is well protected from corrosion aging.
The utility model discloses a theory of operation and use flow: after the utility model is installed, the hand ring 31 is used for controlling the lifting of the valve rod 3, so as to control the opening and closing of the valve plate 4, and the convex teeth 6 on the valve plate 4 can drive the material possibly remained in the cavity to move, so as to be washed away by the fluid, thereby effectively avoiding the impurities remained in the gate valve and prolonging the service life of the device; the packing layer 7 is mainly a flexible graphite adhesive gasket and a polytetrafluoroethylene gasket, so that the sealing performance is improved, and the corrosion and aging of the contact surface of the part are reduced; the galvanization or chromeplating of the mounting connection is well protected against corrosion aging.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The utility model provides a gate valve with anti-aging is convenient for change which characterized in that: including gate valve body (1), valve gap (2), valve rod (3) and valve plate (4), the fixed top that sets up at gate valve body (1) in valve gap (2) in valve rod (2), valve rod (3) set up the inside at valve gap (2), mutual screw-thread fit is connected between valve rod (3) and valve gap (2), valve rod (3) downwardly extending to the inside of gate valve body (1), it is provided with valve plate (4) to connect on the bottom of valve rod (3), valve plate (4) are mutually perpendicular with fluid motion direction, the two sides bottom of valve plate (4) is the slope setting and forms wedge base angle structure, be provided with dogtooth (6) on the two sides of valve plate (4), dogtooth (6) are provided with a plurality of, the both sides of valve plate (4) are provided with joint ring (5), joint ring (5) are connected with the inner wall of valve body.
2. The gate valve with anti-aging and easy replacement of claim 1, wherein: the shape of the inner ring of the clamping ring (5) is matched with the shape of the edge of the valve plate (4), and an accommodating groove is formed between the clamping ring (5) and at the bottom edge of the valve plate (4).
3. The gate valve with anti-aging and easy replacement of claim 1, wherein: the junction of valve plate (4) and valve rod (3) is two-sided butt welding, the surface of valve plate (4) is through surface treatment processes such as nitriding or boronizing, dogtooth (6) are located the lower half region of valve plate (4), dogtooth (6) and valve plate (4) integrated into one piece, form radian column structure between the surface of dogtooth (6) and valve plate (4), dogtooth (6) are the back taper.
4. The gate valve with anti-aging and easy replacement of claim 1, wherein: the top of the valve rod (3) is provided with a hand wheel (31), the middle shaft of the hand wheel (31) is connected with the valve rod (3), and the joint of the valve rod (3) and the valve cover (2) is provided with a plurality of sealing rings (8).
5. The gate valve with anti-aging and easy replacement of claim 1, wherein: the both ends of gate valve body (1) are provided with mounting flange (9), mounting flange (9) set up with one heart with gate valve body (1), be provided with connecting bolt (10) on mounting flange (9) and screw-thread fit each other connects, connecting bolt (10) are hex bolts, be equipped with between mounting flange (9) and connecting bolt (10) and plate zinc or the chromium plating is handled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020037626.0U CN212360843U (en) | 2020-01-08 | 2020-01-08 | Gate valve with anti-aging and convenient to replace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020037626.0U CN212360843U (en) | 2020-01-08 | 2020-01-08 | Gate valve with anti-aging and convenient to replace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212360843U true CN212360843U (en) | 2021-01-15 |
Family
ID=74137933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020037626.0U Active CN212360843U (en) | 2020-01-08 | 2020-01-08 | Gate valve with anti-aging and convenient to replace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212360843U (en) |
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2020
- 2020-01-08 CN CN202020037626.0U patent/CN212360843U/en active Active
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