CN205401781U - Lead screw gate valve of variable rotational speed and torque - Google Patents
Lead screw gate valve of variable rotational speed and torque Download PDFInfo
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- CN205401781U CN205401781U CN201620165801.8U CN201620165801U CN205401781U CN 205401781 U CN205401781 U CN 205401781U CN 201620165801 U CN201620165801 U CN 201620165801U CN 205401781 U CN205401781 U CN 205401781U
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Abstract
The utility model discloses a lead screw gate valve of variable rotational speed and torque, including the valve body, going up valve gap and lower valve gap, go up the valve gap and install in the upper end of valve body, lower valve gap is installed in the lower extreme of valve body, and the mid -mounting of valve body has two disk seats, and the centre of two disk seats is equipped with the flashboard, and the flashboard is connected with an upper valve rod, and the upper end and a lead screw subassembly of upper valve rod are connected, and the lead screw subassembly includes little lead screw, big lead screw and screw -nut, and little lead screw is connected with the upper valve rod, and the inside of lead screw is equipped with the guide way greatly, and the upper portion of little lead screw is connected in the guide way of big lead screw. Screw -nut connects on big lead screw, and screw -nut cup joints with an actuating sleeve mutually, and the hand wheel is installed outward to the actuating sleeve. The utility model discloses at the in -process of opening of gate valve, can reduce to open the operation moment of torsion of first section, realize lightly opening, can improve the operating efficiency when opening the end section again, realize quick complete opening, when carrying out the gate valve shutoff operation, also can realize closing the quick closedown of first section and close lightly closing of end section.
Description
Technical field
This utility model relates to industrial valve field, particularly to the screw mandrel gate valve of a kind of speed variable and torque.
Background technology
Slewing rate when opening and closing of existing gate valve or common screw mandrel gate valve and transmission efficiency are all changeless.When gate valve bore or operating pressure are bigger, artificial operation moment of torsion is just big, and the operating time of opening and closing is also long；Especially during unlatching just section, moment of torsion is very big, sometimes even wants many people to make a concerted effort to open, and needs torsion multi-turn just can fully open when opening back segment, causes that operating efficiency is low, and personnel labor intensity is big.
Utility model content
For solving above-mentioned technical problem, the purpose of this utility model is in that to provide the screw mandrel gate valve of a kind of speed variable and torque, and this screw mandrel gate valve has the function that operation is light, transmission efficiency is variable.
nullFor realizing above-mentioned technical purpose，Reach above-mentioned technique effect，This utility model is achieved through the following technical solutions: the screw mandrel gate valve of a kind of speed variable and torque，Including valve body、Bonnet, and bottom flange，This bonnet, is installed on the upper end of valve body，This bottom flange is installed on the lower end of valve body，The middle part of described valve body is provided with two valve seats，The centre of two valve seats is provided with longitudinally movable flashboard，The upper end of described flashboard is connected with a upper valve rod，This upper valve rod is upward through bonnet,，And the upper end of upper valve rod is connected with a screw component，This screw component includes minor leading screw、Big wire role and feed screw nut，This minor leading screw is connected with described upper valve rod by a packing seal element，It is provided with gathering sill inside the lower end of described big wire role，The top of this minor leading screw is threadingly attached in the gathering sill of big wire role，This feed screw nut is threadingly attached on described big wire role，Described feed screw nut and an actuating sleeve socket-connect，One handwheel is installed outside described actuating sleeve.Further, the lower end of described flashboard is connected with a lower valve rod, and this lower valve rod is passed down through bottom flange.
Further, it is equipped with filler assembly between described upper valve rod and bonnet, and between lower valve rod and bottom flange.
Further, the lower section of the filler assembly between top and lower valve rod and the bottom flange of the filler assembly between described upper valve rod and bonnet, is equipped with gland.
Further, described actuating sleeve is provided with convex shoulder, and the convex shoulder place of actuating sleeve is provided with bearing, and bearing is externally provided with bearing cap.
Further, the lower end of the gathering sill of described big wire role is provided with back-up ring.
Further, it is equipped with sealing ring between described bonnet, and valve body and between bottom flange and valve body.
Further, it is provided with O between described valve seat and valve body.
The beneficial effects of the utility model are: this utility model drives big wire role by actuating sleeve under the effect of external motivating force, and big wire role drives minor leading screw, thus minor leading screw drives flashboard to move up and down, it is achieved the opening and closing of gate valve.Minor leading screw shift motion in the gathering sill of big wire role is little helical pitch, controls the opening and closing just section of gate valve, and the movement of big wire role is large pitch, controls the opening and closing back segment of gate valve.This utility model utilizes the driving feature of the screw component of speed variable and torque, it is achieved operate light, the function that transmission efficiency is variable；This utility model, in the opening process of gate valve, can reduce the operation moment of torsion opening just section, it is achieved light unlatching；Operating efficiency when opening latter end can be improved again, it is achieved quick and complete unlatching simultaneously.Otherwise, when carrying out the shutoff operation of valve, it is possible to realize closing the quick closedown of just section, and close the light closedown of latter end.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the screw component in this utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus protection domain of the present utility model being made apparent clear and definite defining.
As depicted in figs. 1 and 2, a kind of screw mandrel gate valve of speed variable and torque, including valve body 1, bonnet, 2 and bottom flange 3, this bonnet, 2 is installed on the upper end of valve body 1, this bottom flange 3 is installed on the lower end of valve body 1, the middle part of described valve body 1 is provided with two valve seats 4, the centre of two valve seats 4 is provided with longitudinally movable flashboard 5, the upper end of described flashboard 5 is connected with a upper valve rod 6, this upper valve rod 6 is upward through bonnet, 2, and the upper end of upper valve rod 6 is connected with a screw component, this screw component includes minor leading screw 7, big wire role 8 and feed screw nut 9, this minor leading screw 7 is connected with described upper valve rod 6 by a packing seal element 10, it is provided with gathering sill 801 inside the lower end of described big wire role 8, the top of this minor leading screw 7 is threadingly attached in the gathering sill 801 of big wire role 8.Furtherly, the lower end of the gathering sill 801 of this big wire role 8 is provided with back-up ring 802, and minor leading screw 7 is provided with step, and when minor leading screw 7 moves down, back-up ring 802 is kept out on the step of minor leading screw 7, for minor leading screw 7 is carried out backstop.Feed screw nut 9 is threadingly attached on described big wire role 8, and described feed screw nut 9 and an actuating sleeve 11 socket-connect, and are provided with a handwheel 12 outside described actuating sleeve 11.It addition, be arranged with fairlead 20 in the upper end of big wire role 8.
In this utility model, the lower end of described flashboard 5 is connected with a lower valve rod 13, and this lower valve rod 13 is passed down through bottom flange 3.
Furtherly, it is equipped with filler assembly 14 between described upper valve rod 6 and bonnet, 2 and between lower valve rod 13 and bottom flange 3.The lower section of the filler assembly 14 between top and lower valve rod 13 and the bottom flange 3 of the filler assembly 14 between described upper valve rod 6 and bonnet, 2 is equipped with gland 15.
Furtherly, described actuating sleeve 11 is provided with convex shoulder 1101, and convex shoulder 1101 place of actuating sleeve 11 is provided with bearing 16, and bearing 16 is externally provided with bearing cap 17.
Furtherly, it is equipped with sealing ring 18 between described bonnet, 2 and valve body 1 and between bottom flange 3 and valve body 1, it is possible to strengthen the sealing between bonnet, 2 and valve body 1 and between bottom flange 3 and valve body 1.It is provided with O 19, it is possible to strengthen the sealing between valve seat 4 and valve body 1 between described valve seat 4 and valve body 1.
nullWhen gate valve opens and closes，First passing through twisting handwheel 12 drives actuating sleeve 11 to rotate，Actuating sleeve 11 drives feed screw nut 9 to rotate，Feed screw nut 9 drives big wire role 8 to rotate again，Thus under the effect of big wire role 8，Minor leading screw 7 moves up and down along the gathering sill 801 of big wire role 8，Thus driving flashboard 5 moving up and down in first section，After minor leading screw 7 moving into place in the gathering sill 801 of big wire role 8 (namely when gate valve is opened，Minor leading screw 7 moves up，Its upper end is resisted against the upper end of the gathering sill 801 of big wire role 8，When gate valve is closed，Minor leading screw 7 moves down，Minor leading screw 7 is lived by back-up ring 802 backstop)，Big wire role 8 moves up and down under the effect of feed screw nut 9，Continue to drive flashboard 5 to move up and down，Complete the back segment helical pitch of gate valve opening and closing，Finally realize the conducting of the passage of flashboard 5 and the runner of valve body 1 or block.
The minor leading screw 7 shift motion in the gathering sill 801 of big wire role 8 is little helical pitch, controls the opening and closing just section of gate valve, and the movement of big wire role 8 is large pitch, controls the opening and closing back segment of gate valve.This utility model utilizes the driving feature of the screw component of speed variable and torque, it is achieved operate light, the function that transmission efficiency is variable；This utility model, in the opening process of gate valve, can reduce the operation moment of torsion opening just section, it is achieved light unlatching；Operating efficiency when opening latter end can be improved again, it is achieved quick and complete unlatching simultaneously.Otherwise, when carrying out the shutoff operation of valve, it is possible to realize closing the quick closedown of just section, and close the light closedown of latter end.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in scope of patent protection of the present utility model.
Claims (8)
- null1. the screw mandrel gate valve of a speed variable and torque，It is characterized in that: include valve body、Bonnet, and bottom flange，This bonnet, is installed on the upper end of valve body，This bottom flange is installed on the lower end of valve body，The middle part of described valve body is provided with two valve seats，The centre of two valve seats is provided with longitudinally movable flashboard，The upper end of described flashboard is connected with a upper valve rod，This upper valve rod is upward through bonnet,，And the upper end of upper valve rod is connected with a screw component，This screw component includes minor leading screw、Big wire role and feed screw nut，This minor leading screw is connected with described upper valve rod by a packing seal element，It is provided with gathering sill inside the lower end of described big wire role，The top of this minor leading screw is threadingly attached in the gathering sill of big wire role，This feed screw nut is threadingly attached on described big wire role，Described feed screw nut and an actuating sleeve socket-connect，One handwheel is installed outside described actuating sleeve.
- 2. the screw mandrel gate valve of speed variable according to claim 1 and torque, it is characterised in that: the lower end of described flashboard is connected with a lower valve rod, and this lower valve rod is passed down through bottom flange.
- 3. the screw mandrel gate valve of speed variable according to claim 2 and torque, it is characterised in that: it is equipped with filler assembly between described upper valve rod and bonnet, and between lower valve rod and bottom flange.
- 4. the screw mandrel gate valve of speed variable according to claim 3 and torque, it is characterised in that: the lower section of the filler assembly between top and lower valve rod and the bottom flange of the filler assembly between described upper valve rod and bonnet, is equipped with gland.
- 5. the screw mandrel gate valve of speed variable according to claim 1 and torque, it is characterised in that: described actuating sleeve is provided with convex shoulder, and the convex shoulder place of actuating sleeve is provided with bearing, and bearing is externally provided with bearing cap.
- 6. the screw mandrel gate valve of speed variable according to claim 1 and torque, it is characterised in that: the lower end of the gathering sill of described big wire role is provided with back-up ring.
- 7. the screw mandrel gate valve of speed variable according to claim 1 and torque, it is characterised in that: it is equipped with sealing ring between described bonnet, and valve body and between bottom flange and valve body.
- 8. the screw mandrel gate valve of speed variable according to claim 1 and torque, it is characterised in that: it is provided with O between described valve seat and valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620165801.8U CN205401781U (en) | 2016-03-04 | 2016-03-04 | Lead screw gate valve of variable rotational speed and torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620165801.8U CN205401781U (en) | 2016-03-04 | 2016-03-04 | Lead screw gate valve of variable rotational speed and torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205401781U true CN205401781U (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620165801.8U Active CN205401781U (en) | 2016-03-04 | 2016-03-04 | Lead screw gate valve of variable rotational speed and torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205401781U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375080A (en) * | 2019-07-25 | 2019-10-25 | 中石化石油机械股份有限公司 | A kind of pressure self-closing leak-stopping gate valve structure |
| CN110608307A (en) * | 2018-06-14 | 2019-12-24 | 中国石油化工股份有限公司 | Gate valve body and manufacturing method thereof |
-
2016
- 2016-03-04 CN CN201620165801.8U patent/CN205401781U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608307A (en) * | 2018-06-14 | 2019-12-24 | 中国石油化工股份有限公司 | Gate valve body and manufacturing method thereof |
| CN110608307B (en) * | 2018-06-14 | 2022-02-22 | 中国石油化工股份有限公司 | Gate valve body and manufacturing method thereof |
| CN110375080A (en) * | 2019-07-25 | 2019-10-25 | 中石化石油机械股份有限公司 | A kind of pressure self-closing leak-stopping gate valve structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230313 Address after: No. 16, Xihenggang Street, Yangchenghu Town, Xiangcheng District, Suzhou City, Jiangsu Province, 215000 Patentee after: Suzhou Dawson Drilling and Production Equipment Co.,Ltd. Address before: 215137 Xingtai Road, Taiping Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: SUZHOU DOUSON DRILLING & PRODUCTION EQUIPMENT Co.,Ltd. |