CN220337506U - Leakage-proof gate valve - Google Patents
Leakage-proof gate valve Download PDFInfo
- Publication number
- CN220337506U CN220337506U CN202322050353.XU CN202322050353U CN220337506U CN 220337506 U CN220337506 U CN 220337506U CN 202322050353 U CN202322050353 U CN 202322050353U CN 220337506 U CN220337506 U CN 220337506U
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- Prior art keywords
- valve
- valve body
- leakage
- sealing ring
- ring
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- 238000007789 sealing Methods 0.000 claims abstract description 57
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Sliding Valves (AREA)
Abstract
The utility model provides a leakage-proof gate valve, which comprises a valve body, wherein an inner cavity is formed in the top of the valve body, a valve plate is embedded in the inner cavity, the top of the valve body is rotationally connected with a valve rod, the top of the valve rod is fixedly provided with a rotary hand wheel, the bottom of the valve rod is in threaded connection with a threaded seat, the bottom of the threaded seat is fixedly connected with the top of the valve plate, an annular sleeve is fixedly arranged in the middle of the valve rod, and the top of the annular sleeve is fixedly provided with a second sealing ring. According to the utility model, the first sealing ring is arranged at the bottom end of the connecting plate, the second sealing ring is arranged at the top end of the annular sleeve, the threaded push rod is connected with the top end of the fixing ring in a threaded manner to push the connecting plate to move, the distance between the connecting plate and the annular sleeve is convenient to adjust through the movement of the connecting plate, the tightness of the joint of the valve cover and the valve rod is effectively ensured, and the leakage-proof effect of the gate valve is improved.
Description
Technical Field
The utility model belongs to the technical field of gate valves, and relates to a leakage-proof gate valve.
Background
The gate valve is opened and closed by the valve rod, the gate valve is opened and closed completely, the valve rod is controlled to lift, and the joint of the valve rod and the valve cover is worn in a long-term rotation mode, so that the tightness of the joint is affected.
According to the patent number of CN206802350U, a dual anti-leakage gate valve is disclosed, the dual anti-leakage gate valve comprises a valve body, a valve cover, a valve rod and a gate plate, wherein the valve cover is arranged above the valve body, the gate plate is arranged inside the valve body, the valve rod sequentially penetrates through the valve cover and the valve body, and the lower end of the valve rod is connected with the gate plate, a boss is arranged in the valve cover, a through hole for the valve rod to penetrate through is formed in the boss, a first O-shaped sealing ring is arranged between the boss and the valve rod, a copper nut sleeved on the valve rod is arranged above the boss, a flange is arranged on the periphery of the copper nut, the flange is clamped at the top end of the valve cover, a plurality of second O-shaped sealing rings are arranged between the copper nut and the valve rod, and a third O-shaped sealing ring is arranged between the copper nut and the valve cover. The utility model has simple structure and convenient use, can realize the aim of double leakage prevention, has better sealing performance and can improve the quality of products.
The gate valve achieves the effect of preventing leakage through the arrangement of the sealing rings, but the increase of the number of the sealing rings can only suspend the effect of preventing leakage, and in the long-term use process, the problem of leakage still occurs due to abrasion of the contact part of the valve rod and the sealing rings.
Disclosure of Invention
The present utility model is directed to a leakage-proof gate valve to solve the above-mentioned problems.
The aim of the utility model can be achieved by the following technical scheme: the utility model provides a gate valve of preventing leaking, includes the valve body, the inner chamber has been seted up at the top of valve body, the inside of inner chamber has inlayed the valve plate, the top of valve body is rotated and is connected with the valve rod, the fixed rotatory hand wheel that is equipped with in top of valve rod, the bottom threaded connection of valve rod has the screw thread seat, the bottom and the valve plate top fixed connection of screw thread seat, the fixed ring cover that is equipped with in middle part of valve rod, the top of ring cover is fixed and is equipped with the second sealing washer, the second sealing washer is connected with the top contact of inner chamber, the fixed sealing ring that is equipped with in top of inner chamber, the sealing ring is inlayed with the ring cover and is established and be connected, the top end lid of valve body is equipped with the valve gap, threaded connection has fixing bolt between valve gap and the valve body, fixing bolt's bottom threaded connection has two connecting rods, two the connecting rod is connected with valve gap and valve body top, two the surface sliding connection of connecting rod has the connecting plate, the bottom of connecting plate is fixed being equipped with first sealing washer, the top contact with the top of valve gap, the top contact connection of both sides of sealing washer and the screw thread connection of push rod.
In the above-mentioned anti-leakage gate valve, the both sides of valve body are all fixed and are equipped with the flange, two the end department of flange all is fixed and is equipped with the connecting pipe, be provided with sealing mechanism between connecting pipe and the flange.
In the above-mentioned anti-leakage gate valve, sealing mechanism includes solid fixed ring and third sealing washer, the ring channel has been seted up to the side of flange, the end department lantern ring of connecting pipe, the lantern ring inlays to be established with the ring channel and is connected, just the lantern ring is equipped with the third sealing washer with the junction cover of ring channel.
In the above-mentioned anti-leakage gate valve, the bottom end fixing of valve gap is equipped with the spacing ring, the spacing groove has been seted up on the top of valve body, the spacing ring inlays with the spacing groove and establishes and be connected.
In the above-mentioned leakage-proof gate valve, the outer diameter of the seal ring is matched with the inner diameter of the annular sleeve.
In the above-mentioned anti-leakage gate valve, the surface of the rotary hand wheel is provided with anti-sliding grooves which are uniformly distributed.
Compared with the prior art, the leakage-proof gate valve has the advantages that:
1. the second sealing ring is arranged at the top end of the annular sleeve, the threaded push rod is connected with the top end of the fixing ring in a threaded mode to push the connecting plate to move, the distance between the connecting plate and the annular sleeve is convenient to adjust through the movement of the connecting plate, the tightness of the joint of the valve cover and the valve rod is effectively ensured, and the leakage-proof effect of the gate valve is improved.
2. The valve body and the connecting pipe are embedded through the lantern ring and the annular groove, and the tightness of connection between the valve body and the connecting pipe is realized through the arrangement of the third sealing ring.
Drawings
Fig. 1 is a schematic structural view of a leakage-proof gate valve of the present utility model.
Fig. 2 is a partial schematic structural view of the leakage-proof gate valve of the present utility model.
Fig. 3 is a schematic view showing a connection structure between a valve body and a connection pipe of the leakage-proof gate valve of the present utility model.
In the figure, 1, a valve body; 2. a valve plate; 3. a flange; 4. an annular groove; 5. a valve cover; 6. a fixing bolt; 7. an inner cavity; 8. an annular sleeve; 9. a connecting plate; 10. a valve stem; 11. rotating a hand wheel; 12. a fixing ring; 13. a seal ring; 14. a limiting ring; 15. a limit groove; 16. a nut; 17. a threaded push rod; 18. a first seal ring; 19. a connecting rod; 20. a second seal ring; 21. a connecting pipe; 22. a third seal ring; 23. a collar.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1, fig. 2 and fig. 3, the leakage-proof gate valve of the utility model comprises a valve body 1, an inner cavity 7 is formed in the top of the valve body 1, a valve plate 2 is embedded in the inner cavity 7, a valve rod 10 is rotatably connected to the top of the valve body 1, a rotary hand wheel 11 is fixedly arranged at the top of the valve rod 10, a threaded seat is fixedly connected to the bottom of the threaded seat and the top of the valve plate 2, an annular sleeve 8 is fixedly arranged in the middle of the valve rod 10, a second sealing ring 20 is fixedly arranged at the top of the annular sleeve 8, the second sealing ring 20 is in contact connection with the top of the inner cavity 7, a sealing ring 13 is fixedly arranged at the top of the inner cavity 7, the sealing ring 13 is embedded in connection with the annular sleeve 8, a valve cover 5 is arranged at the top cover of the valve body 1, a fixing bolt 6 is in threaded connection between the valve cover 5 and the valve body 1, a nut 16 is in threaded connection with the bottom of the fixing bolt 6, a fixing ring 12 is fixedly arranged at the top of the valve body 1, two connecting rods 19 are fixedly arranged between the fixing ring 12 and the annular sleeve 8, the two connecting rods 19 are connected with the top of the valve plate 5 and the valve body 1, a connecting plate 9 is fixedly connected to the surface of the connecting plate 9 in a penetrating manner, a first sealing ring 18 is fixedly arranged at the bottom of the connecting plate 9, the top 18 is fixedly connected to the top of the sealing ring 18, and the top ends of the sealing ring 17 is in contact with the two sealing rings, and the two sealing rings are in threaded connection with the top ends of the sealing ring 17, respectively, and the two sealing rings are in threaded connection with the top ends of the sealing ring 17.
The connecting plate 9 is pushed to move downwards by the threaded push rod 17, and the distance between the connecting plate 9 and the annular sleeve 8 is adjusted, so that the first sealing ring 18 and the second sealing ring 20 are tightly contacted with the inner walls of the valve cover 5 and the inner cavity 7, and the tightness of the connecting position is ensured.
As shown in fig. 1, 2 and 3, the leakage-proof gate valve of the utility model is characterized in that flanges 3 are fixedly arranged on two sides of a valve body 1, connecting pipes 21 are fixedly arranged at the ends of the two flanges 3, and a sealing mechanism is arranged between the connecting pipes 21 and the flanges 3.
The sealing mechanism comprises a lantern ring 23 and a third sealing ring 22, the side surface of the flange 3 is provided with an annular groove 4, the lantern ring 23 is arranged at the end of the connecting pipe 21, the lantern ring 23 is embedded and connected with the annular groove 4, and the third sealing ring 22 is sleeved at the joint of the lantern ring 23 and the annular groove 4.
The bottom end fixing of valve gap 5 is equipped with spacing ring 14, and limit groove 15 has been seted up on the top of valve body 1, and spacing ring 14 inlays with limit groove 15 to be connected, inlays with ring channel 4 through lantern ring 23 to through the setting of third sealing washer 22, improve the leakproofness that valve body 1 and connecting pipe 21 are connected.
The outer diameter of the sealing ring 13 is matched with the inner diameter of the annular sleeve 8, so that the sealing ring 13 can be embedded with the annular sleeve 8.
The anti-skidding grooves which are uniformly distributed are formed in the surface of the rotary hand wheel 11, and the anti-skidding performance is improved through the anti-skidding grooves formed in the surface of the rotary hand wheel 11.
In particular, when the leakage-proof gate valve is used, the gate valve is firstly installed at a pipeline position, then the threaded push rod 17 is manually rotated, the connecting plate 9 is pushed to move through the movement of the threaded push rod 17, the distance between the connecting plate 9 and the annular sleeve 8 is convenient to adjust through the movement of the connecting plate 9, the first sealing ring 18 and the second sealing ring 20 are tightly contacted with the valve cover 5 and the inner cavity 7 through the interval between the connecting plate 9 and the annular sleeve 8, so that the tightness of the joint of the valve rod 10 and the valve body 1 is ensured, in addition, the joint of the valve body 1 and the connecting pipe 21 is provided with the collar 23 embedded with the annular groove 4, and the tightness of the joint is ensured through the arrangement of the third sealing ring 22.
What is not described in detail in this specification is prior art known to those skilled in the art. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (6)
1. The utility model provides a gate valve of leak protection, includes valve body (1), its characterized in that, inner chamber (7) have been seted up at the top of valve body (1), valve plate (2) have been inlayed to the inside of inner chamber (7), the top of valve body (1) is rotated and is connected with valve rod (10), the fixed rotatory hand wheel (11) that is equipped with in top of valve rod (10), the bottom threaded connection of valve rod (10) has screw thread seat, the bottom of screw thread seat and valve plate (2) top fixed connection, the fixed annular sleeve (8) that is equipped with in middle part of valve rod (10), the top of annular sleeve (8) is fixed and is equipped with second sealing washer (20), the top contact of second sealing washer (20) and inner chamber (7) is connected, the fixed sealing ring (13) that is equipped with in top of inner chamber (7), sealing ring (13) are inlayed and are connected with annular sleeve (8), the top of valve body (1) is covered and is equipped with valve gap (5), threaded connection has fixing bolt (6) between valve gap (5) and the valve body (1), the bottom of fixing bolt (6) is connected with screw thread connection has nut (16), the top of fixing ring (12) and two fixed connection bars (19), the two connecting rods (19) are connected with the valve cover (5) and the valve body (1) in a penetrating mode, the surfaces of the two connecting rods (19) are connected with the connecting plate (9) in a sliding mode, a first sealing ring (18) is arranged at the bottom end of the connecting plate (9) in a fixed mode, the first sealing ring (18) is connected with the top end of the valve cover (5) in a contact mode, threaded push rods (17) are connected with two sides of the top end of the fixed ring (12) in a threaded mode, and the bottoms of the threaded push rods (17) are connected with the top end of the connecting plate (9) in a contact mode.
2. The leakage-proof gate valve according to claim 1, wherein flanges (3) are fixedly arranged on two sides of the valve body (1), connecting pipes (21) are fixedly arranged at the ends of the two flanges (3), and a sealing mechanism is arranged between the connecting pipes (21) and the flanges (3).
3. The leakage-proof gate valve according to claim 2, wherein the sealing mechanism comprises a collar (23) and a third sealing ring (22), an annular groove (4) is formed in the side face of the flange (3), the collar (23) is arranged at the end of the connecting pipe (21), the collar (23) is embedded and connected with the annular groove (4), and the third sealing ring (22) is sleeved at the joint of the collar (23) and the annular groove (4).
4. The leakage-proof gate valve according to claim 1, wherein a limiting ring (14) is fixedly arranged at the bottom end of the valve cover (5), a limiting groove (15) is formed in the top end of the valve body (1), and the limiting ring (14) is connected with the limiting groove (15) in an embedded mode.
5. A leakage-proof gate valve according to claim 1, characterized in that the outer diameter of the sealing ring (13) matches the inner diameter of the annular sleeve (8).
6. The leakage-proof gate valve according to claim 1, characterized in that the surface of the rotating hand wheel (11) is provided with evenly distributed anti-skid grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322050353.XU CN220337506U (en) | 2023-08-01 | 2023-08-01 | Leakage-proof gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322050353.XU CN220337506U (en) | 2023-08-01 | 2023-08-01 | Leakage-proof gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220337506U true CN220337506U (en) | 2024-01-12 |
Family
ID=89444042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322050353.XU Active CN220337506U (en) | 2023-08-01 | 2023-08-01 | Leakage-proof gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220337506U (en) |
-
2023
- 2023-08-01 CN CN202322050353.XU patent/CN220337506U/en active Active
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| GR01 | Patent grant |