CN219655284U - Low-resistance lightweight butterfly valve - Google Patents
Low-resistance lightweight butterfly valve Download PDFInfo
- Publication number
- CN219655284U CN219655284U CN202321168219.3U CN202321168219U CN219655284U CN 219655284 U CN219655284 U CN 219655284U CN 202321168219 U CN202321168219 U CN 202321168219U CN 219655284 U CN219655284 U CN 219655284U
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- Prior art keywords
- valve
- runner
- valve rod
- resistance
- flow channel
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 210000004907 gland Anatomy 0.000 claims abstract description 33
- 239000000945 filler Substances 0.000 claims abstract description 16
- 238000012856 packing Methods 0.000 claims description 35
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000013461 design Methods 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 abstract description 15
- 239000012466 permeate Substances 0.000 abstract 2
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model discloses a low-resistance portable butterfly valve which comprises a valve body, wherein a valve rod is arranged at the top end of a valve plate in the valve body, sealing filler and a sealing gasket are arranged between the valve rod and the valve body, and a valve cover is arranged at the top end of the valve body. This low resistance portability butterfly valve, in order to reduce the resistance of sealing filler and sealing washer and valve rod, need often carry out lubricating treatment, can add lubricating oil through first runner this moment, afterwards lubricating oil flows into the second runner, again by the second runner entering third runner, finally flow from the third runner, lubricating oil flows down along the valve rod and permeates the gap between sealing filler and the valve body, finally permeate the gap between sealing washer and the valve rod, the lubricity between sealing filler and sealing washer and the valve rod has been improved greatly like this, reduce the rotation resistance, and first runner, second runner and third runner are equipped with one respectively in the four sides of gland and valve gap and make the interpolation more even.
Description
Technical Field
The utility model relates to the technical field of butterfly valve design, in particular to a low-resistance lightweight butterfly valve.
Background
A butterfly valve is a mechanical device that opens or closes a plate-like flap in a pipe by rotation, and is commonly used to control the flow and pressure of a medium in a pipe. The device is characterized by simple structure, flexible operation, rapid switch, reliable sealing and the like.
The existing butterfly valve is generally provided with a sealing ring and sealing filler to ensure the tightness of the valve rod, and is matched with a packing gland to press and fix the sealing filler, when the valve rod rotates, the valve rod, the sealing ring, the sealing filler and the gland have certain friction force, so that certain resistance is generated when the valve rod rotates, and inconvenience is brought to operation.
Accordingly, in view of the above, research and improvement on the conventional structure have been conducted, and a low-resistance lightweight butterfly valve has been proposed.
Disclosure of Invention
The utility model aims to provide a low-resistance portable butterfly valve, which aims to solve the problems that the existing butterfly valve provided in the background art is generally provided with a sealing ring and a sealing filler to ensure the tightness of a valve rod, and is matched with a packing gland to press and fix the sealing filler.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the valve comprises a valve body, the valve rod is installed on the valve plate top of valve plate inside the valve body, be equipped with sealing filler and sealing washer between valve rod and the valve body, the valve gap is installed on the valve body top, the cover is installed to the screw thread on the valve gap and is overlapped the gland outside the valve rod, the gland top is equipped with first runner, and is equipped with the second runner with first runner intercommunication on the valve gap, and is equipped with the third runner with second runner intercommunication on the lateral wall of gland, third runner exit end is located valve rod one side, and the third runner is the inclined design.
Preferably, the first flow passage, the second flow passage and the third flow passage are respectively arranged at four sides of the packing gland and the valve cover.
Preferably, the inner wall of the packing gland is provided with an upper row of ball grooves and a lower row of ball grooves, steel balls roll in the ball grooves, and the steel balls roll between the ball grooves and the valve rod.
Preferably, a sponge ring is fixed on the inner wall of the packing gland close to the opening, and the sponge ring is in contact with the valve rod.
Preferably, the top end of the packing gland is rotationally connected with four rotating blocks, and the rotating blocks shield the first flow passage.
Preferably, the top end of the valve rod is fixed with a mounting sleeve by using a bolt, and the mounting sleeve is fixed at the bottom end of the turntable.
Compared with the prior art, the utility model has the following beneficial effects:
1. in order to reduce the resistance of the sealing filler, the sealing gasket and the valve rod, frequent lubrication treatment is needed, lubricating oil can be added through the first flow channel, then the lubricating oil flows into the second flow channel, then flows into the third flow channel through the second flow channel, finally flows out of the third flow channel, the lubricating oil flows downwards along the valve rod to infiltrate into a gap between the sealing filler and the valve body, and finally infiltrates into the gap between the sealing gasket and the valve rod, so that the lubricity between the sealing filler and the sealing gasket and the valve rod is greatly improved, the rotation resistance is reduced, and the first flow channel, the second flow channel and the third flow channel are respectively provided with one part on four sides of the packing gland and the valve cover, so that the addition is more uniform;
2. when the valve rod rotates, the steel balls can be driven to roll in the ball grooves, so that the resistance between the valve rod and the packing gland is greatly reduced, and meanwhile, the packing gland is more convenient and labor-saving to install, and the packing gland is directly sleeved above the valve rod and then is installed on the valve cover through threaded connection.
Drawings
FIG. 1 is a schematic diagram of the overall front internal structure of a low-resistance portable butterfly valve according to the present utility model;
FIG. 2 is a schematic diagram of the overall front external structure of a low-resistance portable butterfly valve according to the present utility model;
FIG. 3 is an enlarged schematic view of the low resistance portable butterfly valve of FIG. 1;
fig. 4 is an enlarged schematic view of the low-resistance portable butterfly valve shown in fig. 1 at B.
In the figure: 1. a valve body; 2. a valve plate; 3. a valve stem; 4. a sealing gasket; 5. sealing filler; 6. a valve cover; 7. a packing gland; 8. a first flow passage; 9. a second flow passage; 10. a third flow passage; 11. steel balls; 12. a sponge ring; 13. a rotating block; 14. a mounting sleeve; 15. a turntable.
Detailed Description
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.
As shown in fig. 1-4, the valve comprises a valve body 1, a valve rod 3 is installed at the top end of a valve plate 2 in the valve body 1, a sealing filler 5 and a sealing gasket 4 are arranged between the valve rod 3 and the valve body 1, a valve cover 6 is installed at the top end of the valve body 1, a packing gland 7 sleeved outside the valve rod 3 is installed on the valve cover 6 in a threaded manner, a first flow passage 8 is arranged at the top of the packing gland 7, a second flow passage 9 communicated with the first flow passage 8 is arranged on the valve cover 6, a third flow passage 10 communicated with the second flow passage 9 is arranged on the side wall of the packing gland 7, the outlet end of the third flow passage 10 is positioned at one side of the valve rod 3, and the third flow passage 10 is of an inclined design.
The first flow passage 8, the second flow passage 9 and the third flow passage 10 are provided at one place on each of four sides of the packing cover 7 and the valve cover 6.
In order to reduce the resistance of the packing 5, the packing 4 and the valve stem 3, it is necessary to perform lubrication treatment frequently, at this time, lubricating oil is added through the first flow channel 8, then the lubricating oil flows into the second flow channel 9, then flows into the third flow channel 10 from the second flow channel 9, finally flows out from the third flow channel 10, and the lubricating oil flows down along the valve stem 3 to infiltrate into the gap between the packing 5 and the valve body 1 and finally infiltrate into the gap between the packing 4 and the valve stem 3, so that the lubricity between the packing 5 and the packing 4 and the valve stem 3 is greatly improved, the rotation resistance is reduced, and the first flow channel 8, the second flow channel 9 and the third flow channel 10 are respectively provided with one place on four sides of the packing 7 and the valve cover 6, so that the addition is more uniform.
The inner wall of the packing gland 7 is provided with an upper row of ball grooves and a lower row of ball grooves, steel balls 11 roll in the ball grooves, and the steel balls 11 roll between the ball grooves and the valve rod 3.
Above-mentioned, like this valve rod 3 is when rotating, can drive steel ball 11 and roll in the ball inslot to make the resistance between valve rod 3 and the gland 7 reduce by a wide margin, also more convenient laborsaving during the installation simultaneously, directly embolia gland 7 from valve rod 3 top again through threaded connection install on valve gap 6 can.
The inner wall of the packing gland 7 close to the opening is fixed with a sponge ring 12, and the sponge ring 12 is contacted with the valve rod 3.
The sponge ring 12 can play a good dustproof role, so that the sponge ring 12 is prevented from being very soft and has very low friction with the valve rod 3.
The top of the packing gland 7 is rotatably connected with four rotating blocks 13, and the rotating blocks 13 shield the first runner 8.
The first flow passage 8 can be shielded in normal conditions through the four rotating blocks 13, so that a good dustproof effect is achieved, and the first flow passage 8 can be exposed by rotating the rotating blocks 13 when lubricating oil is added.
The top end of the valve rod 3 is fixed with a mounting sleeve 14 by using bolts, and the mounting sleeve 14 is fixed at the bottom end of a turntable 15.
Above-mentioned, be convenient for so to carry out the dismouting to installation cover 14 to be convenient for install carousel 15, and it is very firm after the installation, the staff of being convenient for rotates valve rod 3.
Working principle: in order to reduce the resistance of the sealing packing 5, the sealing gasket 4 and the valve rod 3 in the use process, frequent lubrication treatment is needed, at this time, lubricating oil can be added through the first flow channel 8, then the lubricating oil flows into the second flow channel 9, then the lubricating oil flows into the third flow channel 10 through the second flow channel 9, finally the lubricating oil flows out of the third flow channel 10, the lubricating oil flows downwards along the valve rod 3 to infiltrate into a gap between the sealing packing 5 and the valve body 1, finally infiltrate into a gap between the sealing gasket 4 and the valve rod 3, so that the lubricity between the sealing packing 5 and the sealing gasket 4 and the valve rod 3 is greatly improved, the rotation resistance is reduced, the first flow channel 8, the second flow channel 9 and the third flow channel 10 are respectively provided with one place on four sides of the packing gland 7 and the valve cover 6, and the valve rod 3 can drive the steel balls 11 to roll in the ball grooves when rotating, so that the resistance between the valve rod 3 and the packing gland 7 is greatly reduced, and simultaneously, the packing gland 7 is more convenient and labor-saving to be directly sleeved on the valve cover from the upper part of the valve rod 3 and then arranged on the valve cover 6 through threaded connection, and finally the four rotating blocks 13 can play a role in exposing the first flow channel 8 when the first flow channel 8 and the first flow channel 8 is well rotated, so that the dust-proof block can be added.
The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (6)
1. The utility model provides a low resistance portability butterfly valve, includes valve body (1), its characterized in that, valve rod (3) are installed on valve plate (2) top of valve body (1) inside, be equipped with sealing filler (5) and sealing washer (4) between valve rod (3) and valve body (1), valve gap (6) are installed on valve body (1) top, screw thread installs cover (7) at valve rod (3) outside on valve gap (6), gland (7) top is equipped with first runner (8), and is equipped with second runner (9) with first runner (8) intercommunication on valve gap (6), and be equipped with third runner (10) with second runner (9) intercommunication on the lateral wall of gland (7), third runner (10) exit end is located valve rod (3) one side, and third runner (10) are tilting design.
2. The low resistance portable butterfly valve according to claim 1, wherein the first flow channel (8), the second flow channel (9) and the third flow channel (10) are provided one on each of four sides of the packing gland (7) and the valve cover (6).
3. The low-resistance portable butterfly valve according to claim 1, wherein the inner wall of the packing gland (7) is provided with an upper row of ball grooves and a lower row of ball grooves, steel balls (11) roll in the ball grooves, and the steel balls (11) roll between the ball grooves and the valve rod (3).
4. The low-resistance portable butterfly valve according to claim 1, wherein a sponge ring (12) is fixed on the inner wall of the packing gland (7) close to the opening, and the sponge ring (12) is in contact with the valve rod (3).
5. A low resistance lightweight butterfly valve as in claim 1, wherein the top end of the packing gland (7) is rotatably connected with four rotating blocks (13), and the rotating blocks (13) block the first flow channel (8).
6. A low resistance lightweight butterfly valve as claimed in claim 1, characterised in that the top end of the valve stem (3) is bolted to a mounting sleeve (14), and the mounting sleeve (14) is fixed to the bottom end of the turntable (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321168219.3U CN219655284U (en) | 2023-05-16 | 2023-05-16 | Low-resistance lightweight butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321168219.3U CN219655284U (en) | 2023-05-16 | 2023-05-16 | Low-resistance lightweight butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219655284U true CN219655284U (en) | 2023-09-08 |
Family
ID=87878993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321168219.3U Active CN219655284U (en) | 2023-05-16 | 2023-05-16 | Low-resistance lightweight butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219655284U (en) |
-
2023
- 2023-05-16 CN CN202321168219.3U patent/CN219655284U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |