CN219994398U - Low-torque locking large-flow balance valve - Google Patents
Low-torque locking large-flow balance valve Download PDFInfo
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- CN219994398U CN219994398U CN202320835231.9U CN202320835231U CN219994398U CN 219994398 U CN219994398 U CN 219994398U CN 202320835231 U CN202320835231 U CN 202320835231U CN 219994398 U CN219994398 U CN 219994398U
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- clack
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- 210000004907 gland Anatomy 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a low torsion locking large-flow balance valve, which belongs to the technical field of flow balance valves and comprises a valve body, a valve clack, a sleeve and a valve cover, wherein the valve clack, the sleeve and the valve cover are arranged on the valve body, a valve clack sealing ring and a valve clack pressing ring are sleeved on the outer circle of the valve clack, the valve clack pressing ring is in compression joint with the sleeve, the sleeve is arranged in the valve cover in an anastomotic manner, a valve rod nut is connected to the valve clack, the valve rod nut is positioned in an inner cavity of the sleeve, a valve rod is arranged in the valve rod nut, a push rod and a screw rod are connected in the valve rod, the valve cover is in compression joint with the valve body, a plurality of full-thread hexagon head bolts are arranged between the valve body and the valve cover, the full-thread hexagon head bolts are distributed on the valve cover in a circumferential array, a gland is arranged at the top opening of the valve cover in a thread, and a hand wheel assembly is connected through the gland. The low torque band locking large flow balance valve can enable water flow to fill the inner cavity of the valve body, and torque during opening can be greatly reduced under the action of internal and external pressure of the balance sleeve.
Description
Technical Field
The utility model belongs to the technical field of flow balance valves, and particularly relates to a low-torque locking high-flow balance valve.
Background
The utility model provides a flow balance valve's intuitively and simply flow control device, is applicable to in the district central heating pipe network transformation system, uses flow balance valve in the pipe network, can directly set for the flow according to the design, and the valve can be under the effect of water automatic elimination pipeline's surplus pressure head and the flow deviation that pressure fluctuation arouses, and no matter how system pressure changes can keep setting for the flow unchanged. The functions of the flow balance valve enable the flow regulation of the pipe network to be completed once, the network regulation work is changed into simple flow distribution, and the problem of imbalance of the hydraulic balance of the pipe network is effectively solved.
In carrying out the present utility model, the inventors have found that at least the following problems exist in this technology: in the existing flow balance valve, the inside of the existing flow balance valve is usually of a non-eccentric design, so that water flow cannot fill the inner cavity of the valve body, and the torque during opening cannot be reduced by utilizing the internal and external pressure of the sleeve on the valve body, so that the torque is larger.
To this end, we propose a low torque band locking high flow balance valve that solves the above problems.
Disclosure of Invention
The utility model mainly aims to provide a low torque locking large-flow balance valve, water flow can fill the inner cavity of a valve body, torque during opening can be greatly reduced under the action of internal and external pressure of a balance sleeve, and the problems in the background technology can be effectively solved.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the low torsion band locking large flow balance valve comprises a valve body, a valve clack, a sleeve and a valve cover, wherein the valve clack, the sleeve and the valve cover are arranged on the valve body;
the valve clack is connected with a valve rod nut, wherein the valve rod nut is positioned in the inner cavity of the sleeve, a valve rod is arranged in the valve rod nut, and a push rod and a screw rod are connected in the valve rod;
the valve cover is in pressure connection with the valve body, a plurality of full-thread hexagon bolts are arranged between the valve body and the valve cover, and the full-thread hexagon bolts are distributed on the valve cover in a circumferential array manner;
the screw thread at the top opening of the valve cover is provided with a gland, and a hand wheel assembly is connected through the gland.
As a preferred embodiment, a first O-shaped ring is coupled and connected between the ejector rod and the screw rod, a second O-shaped ring is coupled and connected between the sleeve and the valve cover, and a graphite winding pad is coupled and connected between the valve body and the valve cover; through the first O-shaped ring, the second O-shaped ring and the graphite winding pad, the operation stability between the two connected structures is higher.
As a preferred embodiment, each full-thread hexagon head bolt is sleeved with a first plain washer, and the first plain washer is pressed between the full-thread hexagon head bolt and the valve cover; thereby cushioning between the valve cap and the full-thread hex head bolt with the first flat washer.
As a preferred embodiment, a third O-shaped ring is coupled and connected between the valve rod and the valve cover, and a fourth O-shaped ring is arranged between the valve cover and the gland in a cushioning manner; through the third O-shaped ring and the fourth O-shaped ring, the operation stability between the two connected structures can be enhanced.
As a preferred embodiment, a shaft shoulder gasket is crimped at the crimping position of the valve rod and the valve cover; so that a certain buffer exists between the valve rod and the valve cover.
As a preferred embodiment, an inner hexagonal flat round head hollow bolt is connected between the valve rod and the hand wheel assembly, and a second flat washer is sleeved between the inner hexagonal flat round head hollow bolt and the hand wheel assembly; thereby cushioning between the hand wheel assembly and the internal hexagonal flat-headed hollow bolt by the second flat washer.
In summary, the technical effects and advantages of the present utility model are:
the low torsion band locking large-flow balance valve is in streamline design, has small resistance to water flow and can realize large-flow regulation; the inside adopts the design of the balanced valve core (sleeve), compared with the traditional unbalanced valve core, the valve is characterized in that the water flow can fill the inner cavity of the valve body, and the torque during opening can be greatly reduced under the action of the internal pressure and the external pressure of the balanced sleeve;
the low torque band locking large flow balance valve has the function of adjusting and limiting, the inside of a valve rod is designed into a middle opening, the middle of the valve rod is provided with a section of thread, the lower end of the inside of the valve rod is provided with a push rod with an O-shaped ring, the upper end of the inside of the valve rod is provided with a threaded screw rod, after a hand wheel is rotated to the number of turns to be locked, the hand wheel is penetrated into the hollow bolt of a hexagon socket head on the hand wheel through a hexagon socket head wrench and then is clamped at the position of a hexagon socket head wrench, the rotating hexagon socket head wrench rotates the screw rod to push out the push rod, then the lower end of the push rod is contacted with the inner bottom surface of a valve clack to form limit, and the opening of the valve is locked;
this low torque band locking large-traffic balanced valve designs eccentric limit structure on this product transmission, designs eccentric limit hole on the valve gap, designs eccentric screw thread (for the valve rod nut excircle) on the valve rod nut.
Drawings
FIG. 1 is an overall cross-sectional view of the present utility model;
FIG. 2 is a cross-sectional view of a valve cover of the present utility model;
FIG. 3 is a cross-sectional view of a valve cover of the present utility model;
FIG. 4 is a cross-sectional view of a valve stem nut of the present utility model;
fig. 5 is a schematic diagram of the overall structure of the present utility model.
In the figure: 1. a valve body; 2. a valve flap; 3. a valve clack sealing ring; 4. a valve clack pressing ring; 5. a sleeve; 6. a valve stem nut; 7. a valve stem; 8. a push rod; 9. a first O-ring; 10. a second O-ring; 11. a graphite wound mat; 12. a valve cover; 1201. a first identification site; 1202. a second identification site; 13. a full thread hex head bolt; 14. a first flat washer; 15. a screw; 16. a third O-ring; 17. a shoulder pad; 18. a gland; 19. a fourth O-ring; 20. a hand wheel assembly; 21. a second flat washer; 22. hollow bolt with hexagonal flat round head.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-5, a low torque band locking large flow balance valve comprises a valve body 1, a valve clack 2, a sleeve 5 and a valve cover 12, wherein the valve clack 2 is installed on the valve body 1, a valve clack sealing ring 3 and a valve clack pressing ring 4 are sleeved on the outer circle of the valve clack 2, the valve clack pressing ring 4 and the sleeve 5 are in pressure connection, so that the valve clack 2 and the sleeve 5 can be perfectly connected, the sleeve 5 is installed in the valve cover 12 in a fit manner, a valve stem nut 6 is connected on the valve clack 2, the valve stem nut 6 is positioned in an inner cavity of the sleeve 5, a valve stem 7 is installed in the valve stem nut 6, a push rod 8 and a screw 15 are connected in the valve stem 7, the valve cover 12 is in pressure connection with the valve body 1, a plurality of full-thread hexagon bolts 13 are installed between the valve body 1 and the valve cover 12 in a circumferential array, a gland 18 is installed at the top opening of the valve cover 12 in a thread manner, and a hand wheel assembly 20 is connected through the gland 18;
referring to fig. 2-3, it is noted that the aperture at the first location 1201 on the valve cover 12 is of an eccentric design relative to the center of the valve cover 12 (second location 1202);
a first O-shaped ring 9 is coupled and connected between the ejector rod 8 and the screw rod 15, a second O-shaped ring 10 is coupled and connected between the sleeve 5 and the valve cover 12, a graphite winding pad 11 is coupled and connected between the valve body 1 and the valve cover 12, a third O-shaped ring 16 is coupled and connected between the valve rod 7 and the valve cover 12, a fourth O-shaped ring 19 is arranged between the valve cover 12 and the gland 18, and the running stability between the two structures connected by the arranged first O-shaped ring 9, second O-shaped ring 10, graphite winding pad 11, third O-shaped ring 16 and fourth O-shaped ring 19 is higher;
each full-thread hexagon head bolt 13 is sleeved with a first plain washer 14, the first plain washer 14 is in compression joint between the full-thread hexagon head bolt 13 and the valve cover 12, so that buffer is carried out between the valve cover 12 and the full-thread hexagon head bolt 13 by using the first plain washer 14, a shaft shoulder gasket 17 is in compression joint between the valve rod 7 and the valve cover 12, so that certain buffer is provided between the valve rod 7 and the valve cover 12, an inner hexagon flat round head hollow bolt 22 is connected between the valve rod 7 and the hand wheel assembly 20, and a second plain washer 21 is sleeved between the inner hexagon flat round head hollow bolt 22 and the hand wheel assembly 20, so that buffer is carried out between the hand wheel assembly 20 and the inner hexagon flat round head hollow bolt 22 by using the second plain washer 21.
Working principle: the hand wheel assembly 20 is connected with the valve rod 7, the valve rod 7 is connected with the valve rod nut 6 through trapezoidal threads, the valve rod 7 is driven when the hand wheel assembly 20 is rotated, the valve rod 7 drives the valve rod nut 6, at the moment, the excircle eccentricity of the valve rod nut 6 can be tangential to the eccentricity of the limiting hole on the valve cover 12, and further the valve rod nut 6 is limited to rotate, and the valve rod nut 6 can only move up and down along with the trapezoidal threads when the hand wheel assembly 20 is rotated.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The low torsion locking large-flow balance valve comprises a valve body (1), a valve clack (2) arranged on the valve body (1), a sleeve (5) and a valve cover (12), and is characterized in that a valve clack sealing ring (3) and a valve clack pressing ring (4) are sleeved on the outer circle of the valve clack (2), the valve clack pressing ring (4) is in pressure connection with the sleeve (5), and the sleeve (5) is installed in the valve cover (12) in a fit manner;
the valve clack (2) is connected with a valve rod nut (6), wherein the valve rod nut (6) is positioned in an inner cavity of the sleeve (5), a valve rod (7) is arranged in the valve rod nut (6), and a push rod (8) and a screw rod (15) are connected in the valve rod (7);
the valve cover (12) is in pressure connection with the valve body (1), a plurality of full-thread hexagon bolts (13) are arranged between the valve body (1) and the valve cover (12), and the full-thread hexagon bolts (13) are distributed on the valve cover (12) in a circumferential array manner;
a gland (18) is arranged at the top opening of the valve cover (12) in a threaded manner, and a hand wheel assembly (20) is connected with the gland (18).
2. The low torque locking high flow balance valve according to claim 1, wherein a first O-ring (9) is coupled between the ejector rod (8) and the screw (15), a second O-ring (10) is coupled between the sleeve (5) and the valve cover (12), and a graphite winding pad (11) is coupled between the valve body (1) and the valve cover (12).
3. A low torque locking high flow balance valve according to claim 1, characterized in that a first flat washer (14) is sleeved on each full thread hex head bolt (13), and the first flat washer (14) is crimped between the full thread hex head bolt (13) and the valve cap (12).
4. A low torque band locking high flow balance valve according to claim 1, characterized in that a third O-ring (16) is coupled between the valve stem (7) and the valve cap (12), and a fourth O-ring (19) is arranged between the valve cap (12) and the gland (18).
5. A low torque band locking high flow balance valve according to claim 1, characterized in that the valve stem (7) is crimped with the valve cap (12) by a shoulder washer (17).
6. The low torque locking high flow balance valve according to claim 1, characterized in that an inner hexagonal flat round head hollow bolt (22) is connected between the valve rod (7) and the hand wheel assembly (20), and a second flat washer (21) is sleeved between the inner hexagonal flat round head hollow bolt (22) and the hand wheel assembly (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320835231.9U CN219994398U (en) | 2023-04-14 | 2023-04-14 | Low-torque locking large-flow balance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320835231.9U CN219994398U (en) | 2023-04-14 | 2023-04-14 | Low-torque locking large-flow balance valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219994398U true CN219994398U (en) | 2023-11-10 |
Family
ID=88618936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320835231.9U Active CN219994398U (en) | 2023-04-14 | 2023-04-14 | Low-torque locking large-flow balance valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219994398U (en) |
-
2023
- 2023-04-14 CN CN202320835231.9U patent/CN219994398U/en active Active
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