CN216767350U - Labor-saving rubber gate valve for oil production well mouth - Google Patents
Labor-saving rubber gate valve for oil production well mouth Download PDFInfo
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- CN216767350U CN216767350U CN202220514251.1U CN202220514251U CN216767350U CN 216767350 U CN216767350 U CN 216767350U CN 202220514251 U CN202220514251 U CN 202220514251U CN 216767350 U CN216767350 U CN 216767350U
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Abstract
The utility model relates to the technical field of gate valve control, and discloses a labor-saving rubber gate valve for an oil extraction well mouth, which comprises an upper valve core and a lower valve core which are symmetrically arranged at two ends in a valve body, and further comprises a valve rod and a hand wheel, wherein the hand wheel is fixedly connected with one end of the valve rod through a rotating mechanism, positive and negative trapezoidal threads are designed at two ends of the valve rod and are arranged between the hand wheel and the upper valve core, one end of the valve rod is in threaded connection with the upper valve core, the other end of the valve rod is in threaded connection with an upper cross rod, one end of the lower valve core far away from the upper valve core is connected with a lower cross rod through a lower guide rod, and a pull rod is connected between the upper cross rod and the lower cross rod. Compared with the prior art, the valve core positioning device has the advantages that the cross rod and the pull rod are arranged outside the valve body cavity, the valve rod with the positive and negative trapezoidal threads is utilized to realize the automatic centering of the upper valve core and the lower valve core, the operation can be realized by a single person, and the purpose of saving labor is achieved.
Description
Technical Field
The utility model relates to the technical field of gate valve control, in particular to a labor-saving rubber gate valve for an oil extraction well mouth.
Background
The valve is a control part in a fluid conveying system and has the functions of stopping, regulating, guiding, preventing counter flow, stabilizing pressure, shunting, overflowing, relieving pressure and the like. The rubber gate valve is suitable for oil or water as a medium, is used as a closed circuit device on a wellhead of a pumping well, is widely applied to industries such as petroleum, chemical engineering, pharmacy, electric power and the like at present, and a valve rod drives a valve core to move to realize opening and closing of the valve, so that the valve core is in close contact with a valve body to realize sealing.
In the process of sealing an oil field pipeline by using a rubber gate valve, the opening and closing of the traditional gate valve are generally controlled by manpower, and when the fluid pressure in the gate valve is high, the valve core is subjected to high pressure and the switch is difficult to open and close. And the switch of the existing double-hand wheel rubber valve needs to be operated by two persons and is not easy to be centered and closed.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: aiming at the problems in the prior art, the utility model provides the labor-saving rubber gate valve for the oil extraction well mouth.
The technical scheme is as follows: the utility model provides a labor-saving rubber gate valve for an oil extraction well mouth, which comprises an upper valve core and a lower valve core which are symmetrically arranged at two ends in a valve body, and further comprises a valve rod and a hand wheel, wherein the hand wheel is fixedly connected with one end of the valve rod through a rotating mechanism, positive and negative trapezoidal threads are designed at two ends of the valve rod and are arranged between the hand wheel and the upper valve core, one end of the valve rod is in threaded connection with the upper valve core, the other end of the valve rod is in threaded connection with an upper cross rod, one end of the lower valve core far away from the upper valve core is connected with a lower cross rod through a lower guide rod, and a pull rod is connected between the upper cross rod and the lower cross rod.
Further, the valve rod and the lower guide rod are arranged along the moving direction of the upper valve core and the lower valve core, and the upper cross rod and the lower cross rod are perpendicular to the valve rod and the lower guide rod.
Furthermore, the rotating mechanism comprises a rotating nut and a valve rod pin, the rotating nut is rotatably connected to the support through a thrust ball bearing and a bearing nut, the valve rod pin penetrates through the valve rod and is inserted into the valve rod, and the valve rod pin is arranged in the rotating nut.
Furthermore, an o-shaped sealing ring is arranged between the rotating nut and the bearing nut.
Furthermore, the channels on the two sides of the valve body are also provided with an upper valve cover and a lower valve cover at the positions corresponding to the upper valve core and the lower valve core, the lower guide rod slides up and down in the lower valve cover, and the valve rod slides up and down and rotates freely in the upper valve cover.
Furthermore, lip-shaped packing is arranged between the lower valve cover and the lower guide rod and between the valve rod and the upper valve cover, and is fixed through a packing gland.
Furthermore, sealing rings are arranged at the contact ends of the channels on the two sides of the valve body and the upper valve cover and the lower valve cover.
Furthermore, the number of the pull rods is two, and the two pull rods are respectively and fixedly arranged at two ends of the upper cross rod and the lower cross rod.
Has the beneficial effects that:
1. the front trapezoidal threads and the back trapezoidal threads are designed at two ends of the valve rod, the upper valve core moves on the valve rod and moves towards the direction close to or away from the valve body when the hand wheel drives the valve rod to rotate, the upper cross rod moves on the other side of the valve rod while the upper valve core moves on the valve rod, the moving direction of the upper cross rod is opposite to that of the upper valve core, the upper cross rod drives the pull rod and the lower cross rod to be consistent with the moving direction of the upper cross rod while moving on the valve rod, so that the lower cross rod drives the lower guide rod and the lower valve core to move towards the direction close to or away from the valve body, the moving directions of the lower valve core and the upper valve core are opposite, and the upper valve core and the lower valve core move towards or away from the valve body simultaneously, so that the valve body can be opened and closed by a single person, the automatic centering is realized, and the aim of saving labor is fulfilled.
2. According to the utility model, the rotation of the valve rod driven by the hand wheel is realized by utilizing the rotating nut and the valve rod pin, the rotation of the rotating nut is realized by utilizing the rotation of the hand wheel, the rotating nut is fixed with the valve rod pin in the rotating process of the rotating nut, the rotating nut rotates to drive the valve rod pin to rotate, and the valve rod pin drives the whole valve rod to rotate.
3. An o-shaped sealing ring is arranged between the rotating nut and the bearing nut, so that the sealing effect is achieved. The upper valve cover and the lower valve cover are arranged at the positions of the channels at the two sides of the valve body, which correspond to the upper valve core and the lower valve core, the sealing rings are arranged at the positions of the upper valve cover and the lower valve cover, which correspond to the channels, so that the sealing function is also realized, and the upper valve core and the lower valve core are sealed in the valve body.
4. Lip-shaped packing is arranged between the lower valve cover and the lower guide rod and between the valve rod and the upper valve cover, so that the lower guide rod and the valve rod can be sealed.
5. The two pull rods are arranged, and when the cross rod moves under stress, the pull rods at the two ends of the cross rod are stressed, so that the stress can be uniform.
Drawings
FIG. 1 is a schematic view of the external structure of the present invention;
FIG. 2 is a schematic sectional view of the valve of the present invention when open;
FIG. 3 is a schematic cross-sectional view of the valve of the present invention when closed;
FIG. 4 is an enlarged view of the position of the rotating mechanism of the present invention;
FIG. 5 is an enlarged view of the junction of the lower guide bar and the lower valve cover of the present invention.
The valve comprises a valve body 1, an upper valve core 2, a lower valve core 3, a valve rod 4, a lower guide rod 5, a rotating nut 6, a valve rod pin 7, a hand wheel 8, an upper valve cover 9, a lower valve cover 10, a thrust ball bearing 11, a bearing nut 12, a sealing ring 13-O, a support 14, a sealing ring 15, lip-shaped packing 16, a packing gasket 17, a packing gland 18, an upper cross rod 19, a lower cross rod 20 and a pull rod 21.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
The utility model discloses a labor-saving rubber gate valve for an oil extraction wellhead, which is shown in the attached drawings 1-5 and comprises an upper valve core 2 and a lower valve core 3 which are symmetrically arranged at two ends in a valve body 1, wherein channels are arranged at two ends of the valve body 1, and the upper valve core 2 and the lower valve core 3 are arranged in the channels and can move in the channels. Still include valve rod 4 and hand wheel 8, hand wheel 8 passes through slewing mechanism and 4 one end fixed connection of valve rod, and the design of 4 both ends of valve rod has positive and negative trapezoidal screw thread, and it sets up between hand wheel 8, last case 2, and 4 one ends of valve rod and 2 threaded connection of last case, its other end and 19 threaded connection of a last horizontal pole, and 3 one ends of lower case of keeping away from last case 2 are connected with bottom end rail 20 through lower guide arm 5, are connected with pull rod 21 between last horizontal pole 19 and the bottom end rail 20.
Referring to fig. 2 and 3, the valve rod 4 and the lower guide rod 5 are arranged along the moving direction of the upper valve core 2 and the lower valve core 3, and the upper cross rod 19 and the lower cross rod 20 are both arranged perpendicular to the valve rod 4 and the lower guide rod 5.
In the present embodiment, the rotating mechanism includes a rotating nut 6 and a valve rod pin 7, the rotating nut 6 is rotatably connected to the bracket 14 through a thrust ball bearing 11 and a bearing nut 12, referring to fig. 2, the valve rod pin 7 is inserted through the valve rod 4, and the valve rod pin 7 is disposed in the rotating nut 6. The thrust ball bearing 11 and the bearing nut 12 are disposed between the bracket 14 and the swivel nut 6.
An o-ring 13 is arranged between the swivel nut 6 and the bearing nut 12, see fig. 4.
The channel of the two sides of the valve body 4 is also provided with an upper valve cover 9 and a lower valve cover 10 at the corresponding positions of the upper valve core 2 and the lower valve core 3, the lower guide rod 5 slides in the lower valve cover 10, and the valve rod 4 slides in the upper valve cover 9 and rotates freely.
Referring to fig. 5, lip packing 16 is disposed between the lower bonnet 10 and the lower guide rod 5, and between the valve rod 4 and the upper bonnet 9, and the lip packing 16 is fixed by a packing cover 18, and packing gaskets 17 are disposed at contact positions of the lip packing 16, the packing cover 18, and the upper bonnet 9/the lower bonnet 10. The packing gland 18 is made of copper.
And sealing rings 15 are arranged at the contact ends of the channels at the two sides of the valve body 4 and the upper valve cover 9 and the lower valve cover 10.
In this embodiment, two tie rods 21 are provided, and the two tie rods 21 are respectively fixed to two ends of the upper cross bar 19 and the lower cross bar 20.
The working principle is as follows:
and (3) closing process: the rotating process of the valve rod 4 is driven by the rotation of the hand wheel 8, the upper valve core 2 moves on the valve rod 4 and moves towards the direction close to the valve body 1, the upper cross rod 19 moves on the other side of the valve rod 4 while the upper valve core 2 moves on the valve rod 4, the moving direction of the upper cross rod 19 is opposite to the moving direction of the upper valve core 2, namely the upper cross rod moves towards the direction far away from the valve body 1, the upper cross rod 19 moves away from the valve body 1 on the valve rod 4 and drives the pull rod 21 and the lower cross rod 20 to move along with the upper cross rod 19, so that the lower cross rod 20 drives the lower guide rod 5 and the lower valve core 3 to move towards the direction close to the valve body 1, the moving directions of the lower valve core 3 and the upper valve core 2 are opposite, meanwhile, the lower valve body 1 moves towards the direction close to the valve body 1, and the valve body 1 is closed.
The starting process comprises the following steps: the rotating process of the valve rod 4 is driven by the rotation of the hand wheel 8, the upper valve core 2 moves on the valve rod 4 and moves towards the direction away from the valve body 1, the upper cross rod 19 moves on the other side of the valve rod 4 while the upper valve core 2 moves on the valve rod 4, the moving direction of the upper cross rod 19 is opposite to the moving direction of the upper valve core 2, namely, the upper cross rod moves towards the direction close to the valve body 1, the upper cross rod 19 moves on the valve rod 4 and is close to the valve body 1, the pull rod 21 is driven, the lower cross rod 20 moves along with the upper cross rod 19, the lower cross rod 20 drives the lower guide rod 5, the lower valve core 3 moves towards the direction away from the valve body 1, the moving directions of the lower valve core 3 and the upper valve core 2 are opposite, meanwhile, the valve body 1 is opened.
The above embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a laborsaving oil recovery well head rubber gate valve, its characterized in that sets up including the symmetry in last case (2) and lower valve core (3) at the inside both ends of valve body (1), still includes valve rod (4) and hand wheel (8), hand wheel (8) through slewing mechanism with valve rod (4) one end fixed connection, valve rod (4) both ends design has positive and negative trapezoidal screw thread, and it set up in between hand wheel (8), last case (2), valve rod (4) one end with go up case (2) threaded connection, its other end and an upper horizontal pole (19) threaded connection keep away from go up case (2) lower case (3) one end is connected with sheer pole (20) through lower guide arm (5), upper horizontal pole (19) with be connected with pull rod (21) between sheer pole (20).
2. The labor-saving rubber gate valve for the oil extraction wellhead as well as the energy-saving oil extraction wellhead as claimed in claim 1, wherein the valve rod (4) and the lower guide rod (5) are arranged along the moving direction of the upper valve core (2) and the lower valve core (3), and the upper cross rod (19) and the lower cross rod (20) are both perpendicular to the valve rod (4) and the lower guide rod (5).
3. The labor-saving rubber gate valve for an oil extraction wellhead as claimed in claim 1, wherein the rotating mechanism comprises a rotating nut (6) and a valve rod pin (7), the rotating nut (6) is rotatably connected to a support (14) through a thrust ball bearing (11) and a bearing nut (12), the valve rod pin (7) penetrates through the valve rod (4) and is arranged in the rotating nut (6).
4. The labor-saving rubber gate valve for an oil production wellhead as claimed in claim 3, characterized in that an o-ring (13) is arranged between the rotating nut (6) and the bearing nut (12).
5. The labor-saving rubber gate valve for the oil extraction wellhead as well as the claim 1 are characterized in that the channels on the two sides of the valve body (1) are provided with an upper valve cover (9) and a lower valve cover (10) at the positions corresponding to the upper valve core (2) and the lower valve core (3), the lower guide rod (5) slides up and down in the lower valve cover (10), and the valve rod (4) slides up and down and rotates freely in the upper valve cover (9).
6. The labor-saving rubber gate valve for an oil extraction wellhead as claimed in claim 5, characterized in that lip packing (16) is arranged between the lower valve cover (10) and the lower guide rod (5) and between the valve rod (4) and the upper valve cover (9), and the lip packing (16) is fixed by a packing gland (18).
7. The labor-saving rubber gate valve for the oil extraction wellhead as claimed in claim 5, wherein sealing rings (15) are further arranged at the contact ends of the channels on the two sides of the valve body (1) and the upper valve cover (9) and the lower valve cover (10).
8. The labor-saving rubber gate valve for an oil extraction wellhead as claimed in claim 1, wherein two pull rods (21) are provided, and the two pull rods (21) are respectively and fixedly arranged at two ends of the upper cross rod (19) and the lower cross rod (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220514251.1U CN216767350U (en) | 2022-03-09 | 2022-03-09 | Labor-saving rubber gate valve for oil production well mouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220514251.1U CN216767350U (en) | 2022-03-09 | 2022-03-09 | Labor-saving rubber gate valve for oil production well mouth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216767350U true CN216767350U (en) | 2022-06-17 |
Family
ID=81959759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220514251.1U Active CN216767350U (en) | 2022-03-09 | 2022-03-09 | Labor-saving rubber gate valve for oil production well mouth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216767350U (en) |
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2022
- 2022-03-09 CN CN202220514251.1U patent/CN216767350U/en active Active
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