CN216143208U - Gate valve with soft and hard sealing structure - Google Patents
Gate valve with soft and hard sealing structure Download PDFInfo
- Publication number
- CN216143208U CN216143208U CN202122067999.XU CN202122067999U CN216143208U CN 216143208 U CN216143208 U CN 216143208U CN 202122067999 U CN202122067999 U CN 202122067999U CN 216143208 U CN216143208 U CN 216143208U
- Authority
- CN
- China
- Prior art keywords
- valve
- soft
- hard sealing
- hard
- sealing structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to a gate valve with a soft and hard sealing structure, which comprises: a valve body is arranged below the gate valve with a soft and hard sealing structure; a channel is arranged on the transverse axis of the valve body; providing a gate in a central position of a longitudinal axis of the passageway; valve plate holes are formed in the valve body on two sides of the valve plate; a valve seat and a soft and hard sealing structure are arranged in the valve plate hole, and the soft and hard sealing structure is arranged between the valve seat and the valve plate; compared with the prior art, the soft and hard sealing structure is arranged between the valve seat and the valve plate, has the advantages of both the soft sealing structure and the hard sealing structure, and solves the technical problems that in the prior art, the soft sealing structure is easy to damage due to the material of a sealing ring or a sealing strip, so leakage is often caused, and although the material of the hard sealing structure is not easy to damage, the sealing plane is often damaged due to the hard sealing structure, and leakage is also caused.
Description
Technical Field
The embodiment of the utility model relates to a gate valve, in particular to a gate valve with a soft and hard sealing structure.
Background
In the prior art, a soft sealing structure or a hard sealing structure is generally adopted in a gate valve, the soft sealing structure is prone to damage and often causes leakage due to the fact that materials of a sealing ring or a sealing strip of the soft sealing structure are prone to damage, and although the materials of the hard sealing structure are not prone to damage, the hard sealing structure is prone to damage and often damages a sealing plane and also can cause leakage.
SUMMERY OF THE UTILITY MODEL
An object of an embodiment of the present invention is to provide a gate valve having a soft and hard seal structure, which has advantages of both the soft seal structure and the hard seal structure.
In order to achieve the above object, an embodiment of the present invention provides a gate valve having a soft and hard seal structure, including:
the valve body is arranged below the gate valve with the soft and hard sealing structure;
a passage disposed on a transverse axis of said valve body;
a shutter provided at a central position of a longitudinal axis of the passage;
the valve body is provided with valve plate holes on two sides of the valve plate;
a valve seat disposed in the valve plate hole,
the soft and hard sealing structure is arranged between the valve seat and the valve plate.
Further, the soft and hard sealing structures are symmetrically arranged along the preset central axis of the flashboard.
Further, a groove is formed above the flashboard, and one end of a valve rod arranged on the central axis of the valve body is clamped in the groove.
Furthermore, a valve cover is sleeved on the valve rod, and the valve cover and the valve body are fixed through a stud and a nut.
Furthermore, a sealing ring is arranged on the outer side of the valve cover and is sealed with the valve body; and a sealing ring is also arranged between the valve cover and the valve rod and is used for sealing the valve cover and the valve rod.
Furthermore, a bearing hole is formed above the valve cover, and a plurality of bearings are fixed on the valve rod in the bearing hole; a bearing gland is sleeved on the valve rod above the bearing; the bearing gland and the valve cover are fixed by a set screw.
Furthermore, above the bearing gland, one end of the valve rod is connected with a hand wheel through a flat key, and a protective cover is fixed above the hand wheel.
Further, the soft and hard sealing structure further comprises:
the first hard sealing block is arranged on one side edge of the valve seat, a spring hole is formed between the first hard sealing block and the valve seat, and a spring is placed in the spring hole;
the second hard sealing block is arranged opposite to the first hard sealing block, a sealing strip is arranged at the joint between the second hard sealing block and the first hard sealing block, and the sealing strip is clamped into a concave hole formed in the joint between the second hard sealing block and the first hard sealing block; and a static sealing strip is arranged between the second hard sealing block and the valve rod.
Further, the materials of the first hard sealing block and the second hard sealing block are all made of hard alloy.
Further, the sealing strip and the static sealing strip are made of polyurethane.
Compared with the prior art, the soft and hard sealing structure is arranged between the valve seat and the valve plate, has the advantages of both the soft sealing structure and the hard sealing structure, and solves the technical problems that in the prior art, the soft sealing structure is easy to damage due to the material of a sealing ring or a sealing strip, so leakage is often caused, and although the material of the hard sealing structure is not easy to damage, the sealing plane is often damaged due to the hard sealing structure, and leakage is also caused.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged schematic view at a.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.
An embodiment of the present invention relates to a gate valve having a soft and hard sealing structure, as shown in fig. 1 and 2, including:
a valve body 1 is arranged below a gate valve with a soft and hard sealing structure; the valve body 1 serves as a main body in the present embodiment.
A channel 100 is provided on the transverse axis of the valve body 1; the channel 100 acts as a passage for the fluid to pass through.
The gate plate 3 is arranged at the central position of the longitudinal axis of the channel 100, and the gate plate 3 mainly plays a role in intercepting fluid and can form the opening and closing functions of the gate valve;
a valve plate hole 101 is formed in the valve body 1 on two sides of the gate plate 3; valve plate hole 101 is used to position and secure valve seat 2, and valve seat 2 is disposed within valve plate hole 101.
A soft and hard sealing structure 200 is arranged between the valve seat 2 and the valve plate 3. The soft and hard sealing structure 200 is mainly used for sealing between the valve seat 2 and the valve plate 3, and the sealing performance of the gate valve in the embodiment is ensured. In this embodiment, the soft and hard sealing structure 200 is arranged between the valve seat 2 and the valve plate 3, which has the advantages of both soft sealing and hard sealing structure, and solves the technical problems that in the prior art, the soft sealing structure is easy to damage due to the material of the sealing ring or the sealing strip, and often causes leakage, and the hard sealing structure is difficult to damage due to the hard sealing, often damages the sealing plane, and also causes leakage.
In order to achieve the above technical effects, as shown in fig. 1 and 2, the soft and hard seal structure 200 is symmetrically disposed along the preset central axis of the shutter 3. This ensures that the soft and hard seal structure 200 can be sealed on both sides of the shutter 3.
In order to achieve the above-described technical effects, as shown in fig. 1, a groove 31 is provided above the shutter 3, and one end of the valve rod 4 provided on the central axis of the valve body 1 is engaged in the groove 31. This connects the valve stem 4 and the shutter 3 together.
Similarly, in order to achieve the above technical effects, as shown in fig. 1, a bonnet 5 is sleeved on a valve rod 4, and the bonnet 5 and the valve body 1 are fixed by a stud bolt 7 and a nut 8. Thus, the bonnet 5 and the valve body 1 are fixed together, forming an integral structure of the gate valve having the soft and hard seal structure in the present embodiment.
Similarly, in order to achieve the above technical effects, as shown in fig. 1, a seal ring 6 is provided on the outer side of the bonnet 5 to seal with the valve body 1; a sealing ring 6 is also provided between the bonnet 5 and the valve stem 4 for sealing the bonnet 5 and the valve stem 4.
In order to achieve the technical effects, as shown in fig. 1, a bearing hole 51 is formed above the valve cover 5, and a plurality of bearings 10 are fixed on the valve rod 4 in the bearing hole 51; a bearing gland 11 is sleeved on the valve rod 4 above the bearing 10; the bearing gland 11 and the valve cover 5 are fixed by a set screw 15. The above-described structure is the structure of the bearing 10 in the present embodiment.
In order to achieve the above-described technical effects, as shown in fig. 1, a hand wheel 12 is connected to one end of the valve stem 4 above the bearing cover 11 by a flat key 14, and a boot 13 is fixed above the hand wheel 12.
In order to achieve the sealing effect of the soft and hard sealing structure 200, as shown in fig. 2, further includes:
a first hard sealing block 201 is arranged on one side edge of the valve seat 2, a spring hole 202 is formed between the first hard sealing block 201 and the valve seat 2, and a spring 203 is placed in the spring hole 202; the first hard sealing block 201 is pushed by using the elasticity of the spring 203, thus forming a soft sealing effect; a first hard seal block 201 is mounted on one side edge of the valve seat 2.
A second hard sealing block 204 is arranged opposite to the first hard sealing block 201, a sealing strip 205 is arranged at the joint between the second hard sealing block 204 and the first hard sealing block 204, and the sealing strip 205 is clamped into a concave hole 206 formed at the joint between the second hard sealing block 204 and the first hard sealing block 201; a stationary seal 207 is provided between the second hard seal block 204 and the valve stem 4. The above-described structure is a mounting structure of the second hard seal block 204.
The materials of the first hard sealing block 201 and the second hard sealing block 204 are both cemented carbide; the material of the sealing strip 205 and the stationary sealing strip 207 is polyurethane.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the utility model, and that various changes in form and details may be made therein without departing from the spirit and scope of the utility model in practice.
Claims (10)
1. A gate valve with a soft and hard sealing structure is characterized by comprising:
the valve body is arranged below the gate valve with the soft and hard sealing structure;
a passage disposed on a transverse axis of said valve body;
a shutter provided at a central position of a longitudinal axis of the passage;
the valve body is provided with valve plate holes on two sides of the valve plate;
a valve seat disposed in the valve plate hole,
the soft and hard sealing structure is arranged between the valve seat and the valve plate.
2. The gate valve with soft and hard sealing structure according to claim 1, wherein the soft and hard sealing structure is symmetrically arranged along a predetermined central axis of the gate plate.
3. The gate valve with a soft and hard seal structure according to claim 2, wherein a groove is provided above the gate plate, and an end of the stem provided on the central axis of the valve body is caught in the groove.
4. The gate valve with soft and hard sealing structures as claimed in claim 3, wherein a valve cap is sleeved on the valve rod, and the valve cap and the valve body are fixed by a stud bolt and a nut.
5. The gate valve with soft and hard sealing structure as claimed in claim 4, wherein a sealing ring is arranged outside the valve cover to seal with the valve body; and a sealing ring is also arranged between the valve cover and the valve rod and is used for sealing the valve cover and the valve rod.
6. The gate valve with the soft and hard sealing structure according to claim 5, wherein a bearing hole is formed above the valve cover, and a plurality of bearings are fixed on the valve rod in the bearing hole; a bearing gland is sleeved on the valve rod above the bearing; the bearing gland and the valve cover are fixed by a set screw.
7. The gate valve with soft and hard sealing structure as claimed in claim 6, wherein a hand wheel is connected with one end of the valve stem by a flat key above the bearing gland, and a protective cover is fixed above the hand wheel.
8. The gate valve with soft and hard sealing structure according to claim 1, wherein the soft and hard sealing structure further comprises:
the first hard sealing block is arranged on one side edge of the valve seat, a spring hole is formed between the first hard sealing block and the valve seat, and a spring is placed in the spring hole;
the second hard sealing block is arranged opposite to the first hard sealing block, a sealing strip is arranged at the joint between the second hard sealing block and the first hard sealing block, and the sealing strip is clamped into a concave hole formed in the joint between the second hard sealing block and the first hard sealing block; and a static sealing strip is arranged between the second hard sealing block and the valve rod.
9. The gate valve with soft and hard seal structure as claimed in claim 8, wherein the material of the first and second hard seal blocks is cemented carbide.
10. The gate valve with soft and hard sealing structure as claimed in claim 8, wherein the material of said sealing strip and said static sealing strip is polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122067999.XU CN216143208U (en) | 2021-08-30 | 2021-08-30 | Gate valve with soft and hard sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122067999.XU CN216143208U (en) | 2021-08-30 | 2021-08-30 | Gate valve with soft and hard sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216143208U true CN216143208U (en) | 2022-03-29 |
Family
ID=80810512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122067999.XU Active CN216143208U (en) | 2021-08-30 | 2021-08-30 | Gate valve with soft and hard sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216143208U (en) |
-
2021
- 2021-08-30 CN CN202122067999.XU patent/CN216143208U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2403028A (en) | Valve seat seal for faucets | |
| US3219055A (en) | Retractable spacer ring for valve seats | |
| US4235418A (en) | Ball valve having metal seat rings | |
| WO2015063612A2 (en) | Valve seat, sealing gasket and pressure valve | |
| CN201034183Y (en) | Soft-sealing standing ball valve seat structure | |
| CN216143208U (en) | Gate valve with soft and hard sealing structure | |
| CN204025745U (en) | Modified model three-flat ball valve | |
| WO2009095669A4 (en) | A gate valve | |
| CN205715756U (en) | A kind of novel anti-gray valve seat construction of Coal Chemical Industry ball valve | |
| CN109139938B (en) | Stop valve | |
| US3099432A (en) | Valve construction of the o-ring poppet type | |
| US3089678A (en) | Valve construction | |
| CN216158329U (en) | Frost valve | |
| GB917719A (en) | Diaphragm valve | |
| US4314688A (en) | Gate valve | |
| ES2549277B1 (en) | Closing seat for a ball valve | |
| CN207437818U (en) | A kind of hard sealed flat gate valve valve seat of self-adaptation type | |
| CN207935306U (en) | A kind of sealed bearing with lubricant reservoir | |
| CN216158337U (en) | Gate valve with V-shaped flashboard structure | |
| CN218845143U (en) | Butterfly valve with multiple sealing structure | |
| CN207634715U (en) | A kind of butterfly valve valve rod leak-proof structure | |
| CN110714520A (en) | Magnetic repulsion type floor drain core | |
| CN204312744U (en) | Gate valve | |
| CN217108475U (en) | Rising stem gate valve with adjustable | |
| KR101446488B1 (en) | Polyethylene Ball Valves |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |