CN203477370U - Manual sluice valve with non-rising stem - Google Patents
Manual sluice valve with non-rising stem Download PDFInfo
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- CN203477370U CN203477370U CN201320531146.XU CN201320531146U CN203477370U CN 203477370 U CN203477370 U CN 203477370U CN 201320531146 U CN201320531146 U CN 201320531146U CN 203477370 U CN203477370 U CN 203477370U
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- valve
- rising stem
- type gate
- valve body
- gate valve
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Abstract
The utility model discloses a manual sluice valve with a non-rising stem. The manual sluice valve comprises a valve body and a vale rod. A valve cover is connected with the upper side of the valve body through a valve port. A through hole is formed in the valve cover. The lower end of the valve rod extends into the valve body through the through hole. A hand wheel is connected with the upper end of the valve rod. A stuffing box and a stuffing gland are sequentially arranged above the valve cover. An outer thread portion is arranged on the valve rod between the hand wheel and the stuffing gland, and an indicator is in threaded connection with the outer thread portion. An upper travel switch and a lower travel switch are arranged on the lateral side of the outer thread portion. The end of the indicator vertically reciprocates between the lower sides of the lower travel switch and the upper travel switch. Through cooperation between the upper and the lower travel switches and the indicator, opening and closing magnitude of the sluice valve is accurately controlled, the problems such as excessive matching of a valve clack and a valve seat or insufficient opening of the sluice valve are avoided, and safety and reliability of the sluice valve are improved.
Description
Technical field
The utility model relates to plumbing valve field, is specifically related to a kind of manual inside screw non-rising stem type gate valve.
Background technique
Gate valve is one of conventional cut-off valve, is mainly used to connect and cut off the medium in pipeline, its main feature be flow resistance little, open and close laborsavingly, MEDIA FLOW is to unrestricted.Inside screw non-rising stem type gate valve accounts for the more than 80% of gate valve kind, it is valve rod while moving in a circle, the restricted gate valve of straight line motion up and down of valve rod, and valve rod makes flap nut moving linearly by trapezoidal thread, drive flap to pump, thereby gate valve is met, open and close function.
On traditional gate valve, limit the upper and lower straight line motion of valve rod, make progress spacing by valve gap, main spacing spacing with anti-return nut formula by retaining gland type downwards, retaining gland type is spacing because gland is fixed by bolts on valve gap, and volume is large, part is many; And the spacing processed complex of anti-return nut, nut are easily loosening.
For addressing the above problem, Chinese invention patent CN101363546A discloses a kind of inside screw non-rising stem type gate valve, comprises valve body, valve rod and flashboard, and valve body upside has valve port, has valve gap on valve port, has through hole on valve gap, and valve rod lower end is stretched in valve body by this through hole; The upper end of valve rod is provided with handwheel; Described flashboard is in valve body, and its upside has radially screw; There is outside thread valve rod lower end screws in the radially screw on flashboard; On the circumferencial direction of valve gap upper surface, there is axial projection, on axial projection, there are successively Stuffing box and case lid, in the outside of Stuffing box, be processed with radially boss, on the valve rod between handwheel and case lid, pointer is installed, pointer and radial convex interstation are provided with mark post, on mark post lower end and radially boss, be processed with respectively outside thread and axial screw, mark post lower end by this outside thread and axially screw be fixed on radially on boss, can grasp like this size of gate valve open and close.But the open and close size of gate valve is grasped in the cooperation that relies on pointer and mark post, and operator are easily leaked observation, the problem such as cause flashboard excessively to coordinate with valve seat or gate valve aperture is not in place, can not accomplish fine adjustment.
Summary of the invention
The utility model object is to provide a kind of manual inside screw non-rising stem type gate valve that can accurately control gate valve open and close.
For achieving the above object, the technical solution adopted in the utility model is: a kind of manual inside screw non-rising stem type gate valve, comprises valve body and valve rod, valve body upside is connected with valve gap by valve port, valve gap is provided with through hole, and the lower end of described valve rod is stretched in valve body by this through hole, and the upper end of described valve rod is connected with handwheel; The top of described valve gap is provided with Stuffing box and Gland successively, on the described valve rod between described handwheel and Gland, be provided with external thread part, on it, be bolted with indicator, the side of described external thread part is provided with upper stroke switch and lower stroke switch, and the end of described indicator pumps between described lower stroke switch below and described upper stroke switch below.
In technique scheme, on described Gland, be installed with double-screw bolt, described indicator is slidedly arranged on this double-screw bolt.
In technique scheme, the top of described Gland is fixed with a dunnage, and described upper stroke switch and lower stroke switch are fixedly arranged in this dunnage.
In technique scheme, be provided with the bronze valve seat and the bronze flap that match in described valve body, the upside of described flap is provided with radially screw, and the lower end of described valve rod is provided with outside thread and screws in this radially in screw.Because valve seat and flap all adopt bronze (ZQsn10-2II) material, thus the utility model applicable to seawater, corrosion resistance is strong.
Preferably, described flap upper end is installed with Stem Mut, the interior threaded hole that described radially screw is this Stem Mut.
In technique scheme, described valve rod is processed by SS316 stainless steel bars, improves intensity and the hardness of valve rod.
In technique scheme, the length of described valve body is 350mm, the two ends of described valve body are provided with the flange that external diameter is φ 670mm, this size is according to client's the formulation that needs, off-standard size, can meet the demand of specific occasion, and because adopting special production technology, the flange section of valve body and straight section joint stress are concentrated little, and valve body is not easy to damage.
In technique scheme, described valve body and valve gap and between be provided with the first metallic graphite carbon pad.Between described valve gap and Stuffing box, be provided with the second metallic graphite carbon pad.The utility model adopts metal hard-sealing, improves sealing effect.
Because technique scheme is used, the advantage that the utility model compared with prior art has is:
1. the utility model utilizes coordinating between upper and lower stroke switch and indicator, accurately controls the open and close amount of gate valve, and the problem such as avoid flap excessively to coordinate with valve seat or gate valve aperture is not in place improves the safety and reliability of gate valve.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment one structural representation;
Fig. 2 is the partial enlarged drawing at A place in Fig. 1.
Wherein: 1, valve body; 2, valve seat; 3, flap; 4, Stem Mut; 5, the first metallic graphite carbon pad; 8, valve gap; 9, valve rod; 11, the second metallic graphite carbon pad; 13, Stuffing box; 15, Gland; 16, double-screw bolt; 18, handwheel; 21, indicator; 24-1, upper stroke switch; 24-2, lower stroke switch; 25, dunnage.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment one: shown in Fig. 1, Fig. 2, a kind of manual inside screw non-rising stem type gate valve, comprises valve body 1 and valve rod 9, valve body 1 upside is connected with valve gap 8 by valve port, valve gap 8 is provided with through hole, and the lower end of described valve rod 9 is stretched in valve body 1 by this through hole, and the upper end of described valve rod 9 is connected with handwheel 18; The top of described valve gap 8 is provided with Stuffing box 13 and Gland 15 successively, on the described valve rod 9 between described handwheel 18 and Gland 15, be provided with external thread part, on it, be bolted with indicator 21, on described Gland 15, be installed with double-screw bolt 16, described indicator 21 is slidedly arranged on this double-screw bolt 16.
The side of described external thread part is provided with the dunnage 25 being connected with described Gland 15, on it, be installed with upper stroke switch 24-1 and lower stroke switch 24-2, the end of described indicator 21 pumps between described lower stroke switch 24-2 below and described upper stroke switch 24-1 below.
In described valve body 1, be provided with the bronze valve seat 2 and the bronze flap 3 that match, the upper end of described flap 3 is installed with Stem Mut 4, and the interior threaded hole of this Stem Mut 4 forms radially screw, and the lower end of described valve rod 9 is provided with outside thread and screws in this radially in screw.Because valve seat and flap all adopt bronze (ZQsn10-2II) material, thus the utility model applicable to seawater, corrosion resistance is strong.
Described valve rod 9 is processed by stainless steel bars, improves intensity and the hardness of valve rod.
The length of described valve body 1 is 350mm, the two ends of described valve body 1 are provided with the flange that external diameter is φ 670mm, this size is according to client's the formulation that needs, off-standard size, can meet the demand of specific occasion, and because adopting special production technology, the flange section of valve body and straight section joint stress are concentrated little, valve body is not easy to damage.
Between described valve body 1 and valve gap 8, be provided with the first metallic graphite carbon pad 5, between described valve gap 8 and Stuffing box 13, be provided with the second metallic graphite carbon pad 11.The utility model adopts metal hard-sealing, improves sealing effect.
The utility model utilizes coordinating between upper and lower stroke switch and indicator, accurately controls the open and close amount of gate valve, and the problem such as avoid flap excessively to coordinate with valve seat or gate valve aperture is not in place improves the safety and reliability of gate valve.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of principle described in the utility model; can also make some improvement or replacement, these improvement or replacement also should be considered as protection domain of the present utility model.
Claims (10)
1. a manual inside screw non-rising stem type gate valve, comprise valve body (1) and valve rod (9), valve body (1) upside is connected with valve gap (8) by valve port, valve gap (8) is provided with through hole, the lower end of described valve rod (9) is stretched in valve body (1) by this through hole, and the upper end of described valve rod (9) is connected with handwheel (18); The top of described valve gap (8) is provided with Stuffing box (13) and Gland (15) successively, it is characterized in that: the described valve rod (9) being positioned between described handwheel (18) and Gland (15) is provided with external thread part, on it, be bolted with indicator (21), the side of described external thread part is provided with upper stroke switch (24-1) and lower stroke switch (24-2), and the end of described indicator pumps between described lower stroke switch (24-2) below and described upper stroke switch (24-1) below.
2. manual inside screw non-rising stem type gate valve according to claim 1, is characterized in that: on described Gland (15), be installed with double-screw bolt (16), described indicator (21) is slidedly arranged on this double-screw bolt (16).
3. manual inside screw non-rising stem type gate valve according to claim 1, it is characterized in that: the top of described Gland (15) is fixed with a dunnage (25), described upper stroke switch (24-1) and lower stroke switch (24-2) are fixedly arranged in this dunnage (25).
4. manual inside screw non-rising stem type gate valve according to claim 1, it is characterized in that: in described valve body (1), be provided with the bronze valve seat (2) and the bronze flap (3) that match, the upside of described flap (3) is provided with radially screw, and the lower end of described valve rod (9) is provided with outside thread and screws in this radially in screw.
5. manual inside screw non-rising stem type gate valve according to claim 4, is characterized in that: described flap (3) upper end is installed with Stem Mut (4), and described radially screw is the interior threaded hole of this Stem Mut (4).
6. according to the manual inside screw non-rising stem type gate valve described in claim 1 or 4, it is characterized in that: described valve rod (9) is processed by stainless steel bars.
7. manual inside screw non-rising stem type gate valve according to claim 1, is characterized in that: the length of described valve body (1) is 350mm.
8. according to the manual inside screw non-rising stem type gate valve described in any one in claim 1,4 or 7, it is characterized in that: the two ends of described valve body (1) are provided with the flange that external diameter is φ 670mm.
9. manual inside screw non-rising stem type gate valve according to claim 1, is characterized in that: between described valve body (1) and valve gap (8), be provided with the first metallic graphite carbon pad (5).
10. manual inside screw non-rising stem type gate valve according to claim 1, is characterized in that: between described valve gap (8) and Stuffing box (13), be provided with the second metallic graphite carbon pad (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320531146.XU CN203477370U (en) | 2013-08-29 | 2013-08-29 | Manual sluice valve with non-rising stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320531146.XU CN203477370U (en) | 2013-08-29 | 2013-08-29 | Manual sluice valve with non-rising stem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477370U true CN203477370U (en) | 2014-03-12 |
Family
ID=50225701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320531146.XU Expired - Fee Related CN203477370U (en) | 2013-08-29 | 2013-08-29 | Manual sluice valve with non-rising stem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477370U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423470A (en) * | 2013-08-29 | 2013-12-04 | 南通捷瑞阀门有限公司 | Manual non-rising stem type gate valve and heat treatment process of valve body thereof |
| CN106763837A (en) * | 2016-11-10 | 2017-05-31 | 林之铠 | A kind of gate valve |
| CN107687537A (en) * | 2016-11-10 | 2018-02-13 | 俞钟晓 | Has the gate valve of open/close states indicator function |
| CN107687536A (en) * | 2016-11-10 | 2018-02-13 | 俞钟晓 | Has the gate valve of open/close states remote indication function |
-
2013
- 2013-08-29 CN CN201320531146.XU patent/CN203477370U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423470A (en) * | 2013-08-29 | 2013-12-04 | 南通捷瑞阀门有限公司 | Manual non-rising stem type gate valve and heat treatment process of valve body thereof |
| CN106763837A (en) * | 2016-11-10 | 2017-05-31 | 林之铠 | A kind of gate valve |
| CN107687537A (en) * | 2016-11-10 | 2018-02-13 | 俞钟晓 | Has the gate valve of open/close states indicator function |
| CN107687536A (en) * | 2016-11-10 | 2018-02-13 | 俞钟晓 | Has the gate valve of open/close states remote indication function |
| CN106763837B (en) * | 2016-11-10 | 2019-05-17 | 奉化市中新阀门有限公司 | A kind of gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20160829 |
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| CF01 | Termination of patent right due to non-payment of annual fee |