CN216519652U - High-performance double-eccentric butterfly valve - Google Patents
High-performance double-eccentric butterfly valve Download PDFInfo
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- CN216519652U CN216519652U CN202122769537.2U CN202122769537U CN216519652U CN 216519652 U CN216519652 U CN 216519652U CN 202122769537 U CN202122769537 U CN 202122769537U CN 216519652 U CN216519652 U CN 216519652U
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- valve
- valve body
- butterfly
- valve rod
- butterfly plate
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- 238000012856 packing Methods 0.000 claims abstract description 36
- 210000004907 gland Anatomy 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000003801 milling Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a high-performance double-eccentric butterfly valve which comprises a valve body, wherein the valve body is a main mounting structure of the valve, and a sealing cover is arranged at the bottom of the valve body; the packing gland is positioned at the top end of the valve body, and a connecting plate is arranged at the middle end of the packing gland; the butterfly plate is positioned inside the middle end of the valve body, and 2 tooth holes are preset inside the butterfly plate; the valve rod is connected inside the packing gland and the valve body in a penetrating mode, and the outer surface of the valve rod is connected with the shaft sleeve and the bearing respectively. This high performance double-eccentric butterfly valve through milling out the platform in valve rod suitable position, bores the tooth hole of attacking at the butterfly plate corresponding position, withstands the restriction valve rod through locking holding screw to transmission moment of torsion to the butterfly plate realizes opening or closing the butterfly valve, and this structure has improved the bearing moment of torsion of valve rod greatly, avoids the valve rod twist-off, is convenient for maintain and maintain moreover, only need take out holding screw alright maintain with tearing out valve rod or butterfly plate very fast.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a high-performance double-eccentric butterfly valve.
Background
The butterfly valve is also called a flap valve, is a regulating valve with simple structure, can be used for the butterfly valve for the on-off control of low-pressure pipeline media, is a valve which is a closing member, has a valve clack or a butterfly plate as a disc and rotates around a valve shaft to open and close, can not meet the industrial requirements with the development of industrial technology, and can meet the requirements of various working conditions and can be subjected to concentric, single eccentric and double eccentric evolutions.
Some high performance double-eccentric butterfly valves on the market now, butterfly plate and valve rod mainly rely on the straight round pin of impressing after the pressure expansion welding come the transmission moment of torsion in order to open or close the butterfly valve, often because the sealed face of butterfly plate collides the damage and need bores the straight round pin and fall, often can cause the butterfly plate to scrap or the valve rod bores useless, brings certain degree of difficulty for valve maintenance and maintenance, consequently, needs a high performance double-eccentric butterfly valve.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high-performance double-eccentric butterfly valve, which aims to solve the problems that the butterfly plate and a valve rod of the high-performance double-eccentric butterfly valve on the market are provided in the background technology, the butterfly plate and the valve rod are mainly pressed and welded in an expansion mode after a straight pin is pressed in to transmit torque to open or close the butterfly valve, the straight pin needs to be drilled away due to the collision and damage of the sealing surface of the butterfly plate, the butterfly plate is often scrapped or the valve rod needs to be drilled away, and certain difficulty is brought to the maintenance and repair of the valve.
In order to achieve the purpose, the utility model provides the following technical scheme: a high performance double offset butterfly valve comprising:
the valve body is a main mounting structure of the valve, and a sealing cover is arranged at the bottom of the valve body;
the packing gland is positioned at the top end of the valve body, and a connecting plate is arranged at the middle end of the packing gland;
the butterfly plate is positioned inside the middle end of the valve body, and 2 tooth holes are preset inside the butterfly plate;
the valve rod is connected inside the packing gland and the valve body in a penetrating manner, and the outer surface of the valve rod is respectively connected with a shaft sleeve and a bearing;
the valve seat is positioned on the outer surface of one end of the valve body, and an embedded piece is arranged at the joint of the valve seat and the butterfly plate.
As a preferred technical scheme of the utility model, the bottom end of the packing gland is provided with a packing component, and the packing component is movably connected with the valve rod.
Adopt above-mentioned technical scheme, gland connects the one end surface of valve rod through setting up packing assembly, at the rotatory in-process of valve rod, through the inside pore structure of packing assembly, can clear away the dust of valve rod surface, avoids the valve rod rotation to be obstructed.
As a preferred technical scheme of the utility model, the outer surface of the connecting plate is symmetrically provided with bolts, and the connecting plate and the packing gland are of an integrated structure.
Adopt above-mentioned technical scheme, the connecting plate is through setting up bolt and filler subassembly interconnect, can increase the stability of valve rod one end, avoids the valve rod when rotatory, and the upper end atress is uneven and leads to being difficult to control, also avoids the tie point to correspond simultaneously and leads to the valve rod rupture.
As a preferable technical scheme of the utility model, the inside of the tooth hole is connected with a headless screw, and the headless screw is in fit connection with the valve rod.
Adopt above-mentioned technical scheme, set up the tooth hole through corresponding the position and fix to the headless screw can carry out position restriction to the valve rod, when the valve rod is rotatory, realizes opening or closing the valve body with transmission moment of torsion to the butterfly plate.
As a preferred technical scheme of the utility model, the butterfly plate is movably connected with the valve body, and the sealing ring is arranged in the valve body.
By adopting the technical scheme, the sealing ring is arranged in the valve body and connected with the butterfly plate, so that the sealing property of the connection surface of the butterfly plate in a closed state can be ensured, the butterfly plate can play a role in buffering when being opened and closed, and the butterfly plate is prevented from being deformed due to overlarge stress.
As a preferable technical scheme of the utility model, the valve seat is in clamping connection with the embedded piece, and the valve seat is movably connected with the butterfly plate.
By adopting the technical scheme, the butterfly plate can be limited at one end of the valve seat through the clamping of the inner insert, the fitting degree of the butterfly plate and the concave-convex part of the valve body can be increased by matching the inner insert, the disassembly and the assembly are convenient, and the maintenance on the inner part of the valve body can be facilitated when the sealing performance is ensured.
Compared with the prior art, the utility model has the beneficial effects that: this high performance double eccentric butterfly valve:
1. the valve rod or the butterfly plate can be quickly detached for maintenance only by taking out the set screw;
2. through set up the connecting plate between packing assembly and gland to use the bolt to carry out through connection, can balance the stress point of valve rod, make the upper end atress of valve rod more even, avoid the moment of torsion too big and wherein one end atress is uneven and lead to the fracture, thereby increased the protectiveness to the valve rod, thereby increased holistic practicality.
Drawings
FIG. 1 is a schematic view of the overall front view structure of the present invention;
FIG. 2 is a schematic diagram of the overall internal side view of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic diagram of the overall internal top view structure of the present invention.
In the figure: 1. a valve body; 2. a packing gland; 3. a connecting plate; 4. a bolt; 5. a valve stem; 6. a packing assembly; 7. sealing the cover; 8. a butterfly plate; 9. a valve seat; 10. a shaft sleeve; 11. an inner embedded piece; 12. headless screws; 13. a bearing; 14. a tooth hole; 15. and (5) sealing rings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a high performance double offset butterfly valve comprising:
the valve body 1 is a main mounting structure of the valve, and a sealing cover 7 is arranged at the bottom of the valve body 1; the packing gland 2 is positioned at the top end of the valve body 1, and the middle end of the packing gland 2 is provided with a connecting plate 3; the butterfly plate 8 is positioned inside the middle end of the valve body 1, and 2 tooth holes 14 are preset inside the butterfly plate 8; the valve rod 5 is connected inside the packing gland 2 and the valve body 1 in a penetrating manner, and the outer surface of the valve rod 5 is respectively connected with a shaft sleeve 10 and a bearing 13; and the valve seat 9 is positioned on the outer surface of one end of the valve body 1, and an embedded piece 11 is arranged at the joint of the valve seat 9 and the butterfly plate 8.
The bottom end of the packing gland 2 is provided with a packing component 6, and the packing component 6 is movably connected with the valve rod 5; the packing gland 2 is used for connecting the outer surface of one end of the valve rod 5 through the packing component 6, and in the rotating process of the valve rod 5, dust on the outer surface of the valve rod 5 can be removed through a pore structure in the packing component 6, so that the valve rod 5 is prevented from being blocked in rotation; the outer surface of the connecting plate 3 is symmetrically provided with bolts 4, and the connecting plate 3 and the packing gland 2 are of an integrated structure; the connecting plate 3 is connected with the packing component 6 through the bolt 4, so that the stability of one end of the valve rod 5 can be improved, the problem that the valve rod 5 is difficult to control due to uneven stress on the upper end when the valve rod 5 rotates is avoided, and the problem that the valve rod 5 is broken due to the fact that a connecting point does not correspond to the connecting point is also avoided; a headless screw 12 is connected inside the tooth hole 14, and the headless screw 12 is in fit connection with the valve rod 5; the headless screw 12 is fixed through the tooth hole 14 arranged at the corresponding position, the headless screw 12 can limit the position of the valve rod 5, and when the valve rod 5 rotates, torque is transmitted to the butterfly plate 8 to open or close the valve body 1; the butterfly plate 8 is movably connected with the valve body 1, and a sealing ring 15 is arranged inside the valve body 1; the sealing ring 15 is arranged in the valve body 1 and connected with the butterfly plate 8, so that the sealing performance of a connecting surface of the butterfly plate 8 in a closed state can be ensured, a buffer effect can be achieved when the butterfly plate 8 is opened and closed, and the butterfly plate 8 is prevented from being deformed due to overlarge stress; the valve seat 9 is connected with the embedded piece 11 in a clamping manner, and the valve seat 9 is movably connected with the butterfly plate 8; through the 11 block of insertive in the one end of disk seat 9, can carry on spacingly to butterfly plate 8 to insertive 11 in the cooperation can increase the laminating degree of butterfly plate 8 and the concave-convex department of valve body 1, and the dismouting is convenient, when guaranteeing the leakproofness again, can also be convenient for maintain 1 inside of valve body.
The working principle is as follows: when the high-performance double-eccentric butterfly valve is used, firstly, the packing gland 2 is attached to the top end of the valve body 1, the valve rod 5 penetrates through the packing component 6 and the shaft sleeve 10, one end of the valve rod 5 is connected with the shaft sleeve 10, the sealing cover 7 is fixed at the bottom end of the valve body 1, then, the valve body 1 is connected between the connecting plate 3 and the packing gland 2, the stress point of the valve rod 5 is increased, then, the inner embedded piece 11 and the valve seat 9 are sequentially installed on the outer surface of one end of the valve body 1, when the valve rod 5 is controlled, the valve rod 5 is limited by the headless screw 12 in the tooth hole 14 and is in threaded transmission, the headless screw 12 and the valve rod 5 can transmit torque to the butterfly plate 8 to open or close the valve body 1, the torque bearing capacity of the valve rod 5 can be improved, meanwhile, the valve rod 5 can be prevented from being twisted off when in use, quick assembly and disassembly can be realized, maintenance is convenient, the valve rod 5 or the butterfly plate 8 can be disassembled by only taking out the headless screw 12, and maintenance is performed, thereby increasing the overall practicability.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A high performance double eccentric butterfly valve, comprising:
the valve body (1) is a main mounting structure of the valve, and a sealing cover (7) is arranged at the bottom of the valve body (1);
the packing gland (2) is positioned at the top end of the valve body (1), and a connecting plate (3) is arranged at the middle end of the packing gland (2);
the butterfly plate (8) is positioned inside the middle end of the valve body (1), and 2 tooth holes (14) are preset inside the butterfly plate (8);
the valve rod (5) is connected inside the packing gland (2) and the valve body (1) in a penetrating manner, and the outer surface of the valve rod (5) is connected with a shaft sleeve (10) and a bearing (13) respectively;
the valve seat (9) is located on the outer surface of one end of the valve body (1), and an inner insert (11) is arranged at the joint of the valve seat (9) and the butterfly plate (8).
2. The high performance double eccentric butterfly valve of claim 1, wherein: the packing gland (2) bottom is provided with packing subassembly (6), packing subassembly (6) and valve rod (5) are swing joint.
3. The high performance double eccentric butterfly valve of claim 1, wherein: the outer surface of the connecting plate (3) is symmetrically provided with bolts (4), and the connecting plate (3) and the packing gland (2) are of an integrated structure.
4. The high performance double eccentric butterfly valve of claim 1, wherein: the thread hole (14) is internally connected with a headless screw (12), and the headless screw (12) is attached to the valve rod (5).
5. The high performance double eccentric butterfly valve of claim 1, wherein: the butterfly plate (8) is movably connected with the valve body (1), and a sealing ring (15) is arranged inside the valve body (1).
6. The high performance double eccentric butterfly valve of claim 1, wherein: the valve seat (9) is connected with the embedded piece (11) in a clamping mode, and the valve seat (9) is movably connected with the butterfly plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122769537.2U CN216519652U (en) | 2021-11-12 | 2021-11-12 | High-performance double-eccentric butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122769537.2U CN216519652U (en) | 2021-11-12 | 2021-11-12 | High-performance double-eccentric butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216519652U true CN216519652U (en) | 2022-05-13 |
Family
ID=81529128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122769537.2U Active CN216519652U (en) | 2021-11-12 | 2021-11-12 | High-performance double-eccentric butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216519652U (en) |
-
2021
- 2021-11-12 CN CN202122769537.2U patent/CN216519652U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 361100, 1st Floor, No. 39 Huliyuan, Industrial Concentration Zone, Tong'an District, Xiamen City, Fujian Province Patentee after: Xiamen Sophie fluid control equipment Co.,Ltd. Address before: 361100 186 xitanggou Longli, Xinmin Town, Tong'an District, Xiamen City, Fujian Province Patentee before: Xiamen Sophie fluid control equipment Co.,Ltd. |