CN101435511A - Blind rod type knife-shaped gate valve - Google Patents
Blind rod type knife-shaped gate valve Download PDFInfo
- Publication number
- CN101435511A CN101435511A CNA2008102385003A CN200810238500A CN101435511A CN 101435511 A CN101435511 A CN 101435511A CN A2008102385003 A CNA2008102385003 A CN A2008102385003A CN 200810238500 A CN200810238500 A CN 200810238500A CN 101435511 A CN101435511 A CN 101435511A
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- China
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- valve body
- gate valve
- shaped gate
- rod type
- type knife
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- Sliding Valves (AREA)
Abstract
The invention provides a hidden rod type knife-shaped gate valve. The valve comprises a valve body, wherein the valve body is provided with a gate plate inside, and the upper face of the valve body is provided with a gland; a connecting plate is vertically fixed above the front side of the valve body, the upper part of the connecting plate is fixedly connected with a horizontal top plate, a thrust bearing is arranged between the top plate and a screw rod, the other end of the top plate is vertically downward arranged and fixedly connected with a connecting rod, and the bottom end of the connecting rod is fixedly connected with the back face of the valve body; the top plate is vertically provided with the screw rod, the upper end of the screw rod is provided with a hand wheel, and the lower part of the screw rod is movably connected with a nut; the nut is fixedly connected with the upper part of the gate plate in the valve body; and the gate plate is knife-shaped, and the bottom part of the gate plate is provided with knife edges. The length of the screw rod of the gate valve is one half of that of the open rod type knife-shaped gate valve, thereby saving material. The hidden rod type knife-shaped gate valve also has the advantages of simple manufacturing process, good pipe strength and high production efficiency; and when the hidden rod type knife-shaped gate valve is used, the length of the valve is kept constant, thereby saving space.
Description
Technical field
The present invention relates to the used gate valve of a kind of paper-making pulping, chemical industry, oil and sewage treatment, particularly carry out technological innovation and the blind rod type knife-shaped gate valve invented at the shortcoming and defect of Outside screw stem rising through handwheel type gate valve.
Background technique
At present, widely used gate valve is an Outside screw stem rising through handwheel type gate valve, and its unlatching, to close be to adopt trapezoidal nut to rotate to drive the trapezoidal screw oscilaltion, makes the flashboard lifting, the purpose of reach valve opening, closing.Upwards emersion of trapezoidal screw like this, not only will consider that the structure length of trapezoidal screw will reach certain-length when making when Open valve, the waste raw material, and also it is bigger to take up room when installing.
Summary of the invention
Blind rod type knife-shaped gate valve little, that leading screw length is shorter than the screw mandrel length of Outside screw stem rising through handwheel type gate valve takes up room when the purpose of this invention is to provide a kind of the installation.
For achieving the above object, the technical solution used in the present invention is:
A kind of blind rod type knife-shaped gate valve comprises: valve body, flashboard is installed in the valve body, and it is characterized in that: gland is installed above the valve body; The top in valve body front vertically is fixedly connected with connecting plate, and the top of connecting plate is fixedly connected with the top board of level, and the other end of top board vertically is fixedly connected with connecting rod downwards, fixedlys connected with the reverse side of valve body in the bottom of connecting rod; Leading screw vertically is installed on the top board, and the upper end of leading screw is equipped with handwheel, and the bottom of leading screw is connected with nut; Nut is fixedlyed connected with the flashboard top in the described valve body; Described flashboard is a knife-edge, and the bottom of flashboard has blade.
According to described blind rod type knife-shaped gate valve, it is characterized in that: between described top board and the leading screw thrust-bearing is installed.
According to described blind rod type knife-shaped gate valve, it is characterized in that: poly-tetrafluoro packing is housed between described gland and the valve body.
According to described blind rod type knife-shaped gate valve, it is characterized in that: the internal diameter of described valve outlet is less than the internal diameter of valve body import; Seal ring is equipped with in the inboard of valve outlet.
According to described blind rod type knife-shaped gate valve, it is characterized in that: described valve body inlet is fixedly connected with the corresponding positioning block of blade with the flashboard bottom.
According to described blind rod type knife-shaped gate valve, it is characterized in that: described top board is triangular in shape.
The present invention has used pulley principle between trapezoidal nut and trapezoidal screw and has adopted the principle of triangular supports, successfully releases blind rod type knife-shaped gate valve.Blind rod type knife-shaped gate valve is different from Outside screw stem rising through handwheel type gate valve: trapezoidal screw rotates and drives the trapezoidal nut oscilaltion, makes the flashboard lifting, thus the order that reaches valve opening, closes.Leading screw length in the processing is the leading screw length 1/2 of Outside screw stem rising through handwheel type gate valve, conservation.Processing technology of the present invention is simple, has strengthened the intensity of pipeline, enhances productivity.Remaining consistently with former valve length when the present invention opens, save the space, is the alternative innovative product of Outside screw stem rising through handwheel type gate valve.The advantage of knife-shape gate valve is that the blade of flashboard can cut off the big fiber in valve port place, colloid substance, closes tight purpose to reach.
The present invention is from appearance: in use more attractive in appearance than Outside screw stem rising through handwheel type gate valve; On performance: leg-of-mutton support, not only save raw material, and can guarantee required mechanical property; On processing technology: adopt the short structure length of trapezoidal screw, not only conservation but also saving installing space; On economic benefit: saved material, reduced cost of production.Along with domestic papermaking, chemical industry, the development of electric power industry and the increasing of environmental protection dynamics, the consumption of blind rod type knife-shaped gate valve can be increasing.
Description of drawings
Fig. 1 looks schematic representation for master of the present invention.
Fig. 2 looks cross-sectional schematic for the right side of the present invention.
Fig. 3 is the plan view of connecting plate among the present invention.
Fig. 4 looks sectional view for the left side of Fig. 3.
Fig. 5 is the structural representation of leading screw among the present invention.
Fig. 6 is the structural representation of connecting rod among the present invention.
Fig. 7 is the plan view of top board among the present invention.
Fig. 8 is the A-A sectional view of Fig. 7.
Fig. 9 is the plan view of nut among the present invention.
Figure 10 is the B-B sectional view of Fig. 9.
Figure 11 is the plan view of valve body among the present invention.
Figure 12 is the C-C sectional view of Figure 11.
Figure 13 is the D-D sectional view of Figure 12.
Figure 14 is the plan view of flashboard among the present invention.
Figure 15 is the E-E sectional view of Figure 14.
In the accompanying drawing: 1, handwheel; 2, key; 3, thrust-bearing; 4, connecting plate; 5, leading screw; 6, nut; 7, flashboard; 8, gland; 9, valve body; 10, Cock screw; 11, flange; 12, positioning block; 13, seal ring; 14, top board; 15, connecting rod; 16, blade.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments:
Blind rod type knife-shaped gate valve of the present invention comprises as shown in Figure 1 and Figure 2: valve body 9 is equipped with flashboard 7 in the valve body 9.Gland 8 is installed above the valve body 9.Poly-tetrafluoro packing (not drawing among the figure) is housed between gland 8 and the valve body 9.The top in valve body 9 fronts vertically is fixedly connected with connecting plate 4, and the top of connecting plate 4 is fixedly connected with the top board 14 (in addition referring to Fig. 7, Fig. 8) of level, and top board 14 is triangular in shape.Between top board 14 and the leading screw 5 thrust-bearing 3 is installed.The other end of top board 14 vertically is fixedly connected with connecting rod 15 downwards, fixedlys connected with the reverse side of valve body 9 in the bottom of connecting rod 15; Leading screw 5 vertically is installed on the top board 14, and the upper end of leading screw 5 is equipped with handwheel 1, and the bottom of leading screw 5 is connected with nut 6; Nut 6 is fixedlyed connected with flashboard 7 tops in the valve body 9.
Described flashboard 7 is a knife-edge, and the bottom of flashboard 7 has blade 16 (in addition referring to Figure 14, Figure 15).
The internal diameter of valve body 9 outlets is less than the internal diameter of valve body 9 imports; Seal ring 13 is equipped with in the inboard of valve body 9 outlets.Valve body 9 inlets are fixedly connected with the blade 16 corresponding positioning blocks 12 with flashboard 7 bottoms.
When the present invention used, trapezoidal screw rotated and drives the trapezoidal nut oscilaltion, thereby makes the flashboard lifting, with the order that reaches valve opening, closes.
Embodiment recited above is described preferred implementation of the present invention; be not that design of the present invention and protection domain are limited; under the prerequisite that does not break away from design concept of the present invention; common engineers and technicians make technological scheme of the present invention in related domain various modification and improvement all should fall into protection scope of the present invention.
Claims (6)
1, a kind of blind rod type knife-shaped gate valve comprises: valve body (9), flashboard (7) is installed in the valve body (9), and it is characterized in that: gland (8) is installed above the valve body (9); The positive top of valve body (9) vertically is fixedly connected with connecting plate (4), the top of connecting plate (4) is fixedly connected with the top board (14) of level, the other end of top board (14) vertically is fixedly connected with connecting rod (15) downwards, fixedlys connected with the reverse side of valve body (9) in the bottom of connecting rod (15); Leading screw (5) vertically is installed on the top board (14), and the upper end of leading screw (5) is equipped with handwheel (1), and the bottom of leading screw (5) is connected with nut (6); Nut (6) is fixedlyed connected with flashboard (7) top in the described valve body (9); Described flashboard (7) is a knife-edge, and the bottom of flashboard (7) has blade (16).
2, blind rod type knife-shaped gate valve according to claim 1 is characterized in that: between described top board (14) and the leading screw (5) thrust-bearing (3) is installed.
3, blind rod type knife-shaped gate valve according to claim 1 is characterized in that: poly-tetrafluoro packing is housed between described gland (8) and the valve body (9).
4, blind rod type knife-shaped gate valve according to claim 1 is characterized in that: the internal diameter of described valve body (9) outlet is less than the internal diameter of valve body (9) import; Seal ring (13) is equipped with in the inboard of valve body (9) outlet.
5, blind rod type knife-shaped gate valve according to claim 1 is characterized in that: described valve body (9) inlet is fixedly connected with and the corresponding positioning block (12) of the blade (16) of flashboard (7) bottom.
6, blind rod type knife-shaped gate valve according to claim 1 is characterized in that: described top board (14) is triangular in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102385003A CN101435511A (en) | 2008-12-12 | 2008-12-12 | Blind rod type knife-shaped gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102385003A CN101435511A (en) | 2008-12-12 | 2008-12-12 | Blind rod type knife-shaped gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101435511A true CN101435511A (en) | 2009-05-20 |
Family
ID=40710086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102385003A Pending CN101435511A (en) | 2008-12-12 | 2008-12-12 | Blind rod type knife-shaped gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101435511A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737511B (en) * | 2010-01-27 | 2012-09-05 | 上海凯科阀门制造有限公司 | Non-rising stem butterfly-shaped knife gate valve |
| CN107448666A (en) * | 2017-09-26 | 2017-12-08 | 无锡福斯拓科科技有限公司 | A kind of hand-reset structure for Direct Travel actuator |
-
2008
- 2008-12-12 CN CNA2008102385003A patent/CN101435511A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737511B (en) * | 2010-01-27 | 2012-09-05 | 上海凯科阀门制造有限公司 | Non-rising stem butterfly-shaped knife gate valve |
| CN107448666A (en) * | 2017-09-26 | 2017-12-08 | 无锡福斯拓科科技有限公司 | A kind of hand-reset structure for Direct Travel actuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090520 |