CN213871179U

CN213871179U - Wear-resistant hard sealing gate valve

Info

Publication number: CN213871179U
Application number: CN202022583477.0U
Authority: CN
Inventors: 吴添元
Original assignee: Fujian Lidun Industry Co ltd
Current assignee: Fujian Lidun Industry Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-08-03
Anticipated expiration: 2030-11-10

Abstract

The utility model discloses a wear-resisting hard sealing gate valve, including device shell, electric telescopic handle, spacing groove and clear dirty mouthful, the device shell, the left side of control block is connected with the inlet tube, the right side of control block is connected with the outlet pipe, the front end of outlet pipe is provided with the filter screen, the flange board is installed with the end of outlet pipe to the front end of inlet tube, the inlet tube is provided with the fly leaf with the below of outlet pipe, the back connection of fly leaf has electric telescopic handle, the spacing groove has been seted up under the control block, clear dirty mouthful has been seted up in the left side of fly leaf. This wear-resisting hard sealing gate valve is provided with the fixed gear, and the inside torsion spring that is provided with of fixed gear is provided with the filter screen in the outlet pipe, and mud and other impurity in the mud make the control block descend after being filtered and clear up, later resume the normal position under torsion spring's effect, realize automatic control, have reduced staff's the amount of labour, avoid the repetitive work.

Description

Wear-resistant hard sealing gate valve

Technical Field

The utility model relates to a gate valve technical field specifically is a wear-resisting hard seal gate valve.

Background

The gate valve is an opening and closing piece gate plate, the motion direction of the gate plate is perpendicular to the fluid direction, the gate valve can only be opened fully and closed fully and cannot be adjusted and throttled, the gate valve is sealed through the contact of a valve seat and the gate plate, usually, a sealing surface can be subjected to surfacing welding of metal materials to increase the wear resistance, for example, 1Cr13, STL6, stainless steel and the like are subjected to surfacing welding, the gate plate is provided with a rigid gate plate and an elastic gate plate, the gate valve is divided into the rigid gate valve and the elastic gate valve according to the difference of the gate plates, and the slurry gate valve is mainly used on a pipeline for conveying high-pressure slurry in the oilfield drilling industry and plays a role in closing a channel.

At present, a mud gate valve used in the market can cause abrasion to a pipeline wall and a sealing plate in the process of conveying mud for a long time, so that the sealing effect of the sealing plate on the pipeline is poor, the mud enters other places in a device, and the difficulty of cleaning the device is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wear-resisting hard sealing gate valve to solve the mud gate valve that uses on the present market that above-mentioned background art provided and can lead to the fact wearing and tearing to pipeline wall and closing plate at the in-process of carrying mud for a long time, make the closing plate to the sealed effect variation of pipeline, make other places in the mud access device, increased the problem of the degree of difficulty of device clearance.

In order to achieve the above object, the utility model provides a following technical scheme: a wear-resistant hard sealing gate valve comprises a device shell, an electric telescopic rod, a limiting groove and a dirt cleaning port, wherein a fastening nut is sleeved on the outer side surface of a control rod, the tail end of the control rod is connected with a control block, a fixing frame is installed on the upper side of the control block, a fixed gear is installed on the surface of the fixing frame, a torsion spring is arranged inside the fixed gear, the outer side of the fixed gear is connected with a transmission rod, the transmission rod is fixed on the surface of the control rod, the left side of the control block is connected with a water inlet pipe, the right side of the control block is connected with a water outlet pipe, the front end of the water outlet pipe is provided with a filter screen, flange plates are installed at the front end of the water inlet pipe and the tail end of the water outlet pipe, a movable plate is arranged below the water inlet pipe and the water outlet pipe, the back of the movable plate is connected with the electric telescopic rod, the limiting groove is formed under the control block, and a dirt cleaning opening is formed in the left side of the movable plate.

Preferably, the device shell is square, the surface of the control rod is provided with threads, the control rod is in sliding connection with the device shell, and the distance between the fastening nut and the upper surface of the device shell is equal to the distance between the bottom surface of the control block and the inner bottom surface of the device shell.

Preferably, the size of the opening of the control block is larger than the diameters of the water inlet pipe and the water outlet pipe, the width of the control block is equal to the distance between the water inlet pipe and the water outlet pipe, and the shape and the size of the limiting groove are the same as those of the control block.

Preferably, the fixed frame is fixedly connected with the inside of the device shell, the outer edge of the transmission rod is in a tooth-shaped structure, the transmission rod is meshed with the fixed gear, and the fixed gear is fixedly connected with the torsion spring.

Preferably, the water inlet pipe and the water outlet pipe are connected with the device shell in an embedded mode, the filter screen is circular, the diameter of the filter screen is equal to that of the water outlet pipe, and the filter screen is fixedly connected with the water outlet pipe.

Preferably, the movable plate forms a left-right moving structure on the bottom surface in the device shell through an electric telescopic rod, the number of the electric telescopic rods is 2, the distance between the 2 electric telescopic rods is larger than the size of the bottom of the control block, and the shape and the size of the movable plate are the same as those of the dirt cleaning opening.

Compared with the prior art, the beneficial effects of the utility model are that: this wear-resisting hard seal gate valve:

(1) the automatic control device is provided with a fixed gear, a torsion spring is arranged in the fixed gear, a filter screen is arranged in a water outlet pipe, mud and other impurities in slurry are filtered, then the control block descends to be cleaned, and then the mud and other impurities are restored to the original position under the action of the torsion spring, so that automatic control is realized, the labor capacity of workers is reduced, and repeated work is avoided;

(2) the contact surfaces of the inner surfaces of the water inlet pipe and the water outlet pipe and the contact surfaces of the control block, the water inlet pipe and the water outlet pipe are sprayed with tungsten carbide coatings, so that the water inlet pipe and the water outlet pipe are more wear-resistant and are prevented from being corroded.

Drawings

FIG. 1 is a schematic view of the main sectional structure of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic view of the top-down structure of the present invention;

fig. 4 is a schematic view of the top view structure of the movable plate of the present invention;

fig. 5 is a schematic structural diagram of a portion a in fig. 1 according to the present invention.

In the figure: 1. a device housing; 2. a control lever; 3. fastening a nut; 4. a control block; 5. a fixed mount; 6. Fixing a gear; 7. a torsion spring; 8. a transmission rod; 9. a water inlet pipe; 10. a water outlet pipe; 11. a filter screen; 12. a flange plate; 13. a movable plate; 14. an electric telescopic rod; 15. a limiting groove; 16. and 4, cleaning a sewage port.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a wear-resistant hard sealing gate valve comprises a device shell 1, a control rod 2, a fastening nut 3, a control block 4, a fixing frame 5, a fixed gear 6, a torsion spring 7, a transmission rod 8, a water inlet pipe 9, a water outlet pipe 10, a filter screen 11, a flange plate 12, a movable plate 13, an electric telescopic rod 14, a limiting groove 15 and a dirt cleaning port 16, wherein the control rod 2 is arranged at the central position of the upper surface of the device shell 1, the fastening nut 3 is sleeved on the outer side surface of the control rod 2, the tail end of the control rod 2 is connected with the control block 4, the fixing frame 5 is arranged on the upper side of the control block 4, the fixed gear 6 is arranged on the surface of the fixing frame 5, the torsion spring 7 is arranged inside the fixed gear 6, the transmission rod 8 is connected to the outer side of the fixed gear 6, the transmission rod 8 is fixed on the surface of the control rod 2, the water inlet pipe 9 is connected to the left side of the control block 4, the water outlet pipe 10 is connected to the right side of the control block 4, the front end of the water outlet pipe 10 is provided with a filter screen 11, the front end of the water inlet pipe 9 and the tail end of the water outlet pipe 10 are provided with flange plates 12, movable plates 13 are arranged below the water inlet pipe 9 and the water outlet pipe 10, the back of the movable plates 13 is connected with an electric telescopic rod 14, a limiting groove 15 is formed right below the control block 4, and a dirt cleaning port 16 is formed in the left side of the movable plates 13.

The device shell 1 is square, the surface of the control rod 2 is provided with threads, the control rod 2 is in sliding connection with the device shell 1, the distance between the fastening nut 3 and the upper surface of the device shell 1 is equal to the distance between the bottom surface of the control block 4 and the inner bottom surface of the device shell 1, and the fastening nut 3 can fix the control rod 2 when the control block 4 moves to the lowest position.

The size of the opening of the control block 4 is larger than the diameters of the water inlet pipe 9 and the water outlet pipe 10, the width of the control block 4 is equal to the distance between the water inlet pipe 9 and the water outlet pipe 10, and the shape and the size of the limiting groove 15 are the same as those of the control block 4, so that the control block 4 can enter the limiting groove 15 when moving downwards.

The fixed frame 5 is fixedly connected with the inside of the device shell 1, the outer edge position of the transmission rod 8 is in a tooth-shaped structure, the transmission rod 8 is meshed with the fixed gear 6, and the fixed gear 6 is fixedly connected with the torsion spring 7, so that the torsion spring 7 can control the fixed gear 6 to rotate.

The inlet tube 9 and the outlet pipe 10 are both connected with the device shell 1 in an embedded manner, the filter screen 11 is circular, the diameter of the filter screen 11 is equal to that of the outlet pipe 10, and the filter screen 11 is fixedly connected with the outlet pipe 10, so that the filter screen 11 can filter mud and other impurities in slurry.

The movable plate 13 forms a left-right moving structure on the bottom surface inside the device shell 1 through the electric telescopic rods 14, the number of the electric telescopic rods 14 is 2, the distance between the 2 electric telescopic rods 14 is larger than the size of the bottom of the control block 4, and the shape and the size of the movable plate 13 are the same as those of the dirt cleaning opening 16, so that the movable plate 13 does not influence the rising of the control block 4.

The working principle is as follows: when the wear-resistant hard sealing gate valve is used, firstly, parts required by the device are assembled, when the device is used, the water inlet pipe 9 is connected with a water source through the flange plate 12, then the fastening nut 3 is rotated to enable the control rod 2 to move upwards, the opening position of the control block 4 is driven by the control rod 2 to move upwards between the water inlet pipe 9 and the water outlet pipe 10, slurry in the water inlet pipe 9 enters the water outlet pipe 10, and mud and other impurities in the slurry are filtered by the filter screen 11 and are accumulated at the opening of the control block 4 before the slurry enters the water outlet pipe 10.

When the gravity of the control block 4 is larger than the force of a torsion spring 7 in a fixed gear 6, the control block 4 moves downwards and enters a limiting groove 15, at the moment, the solid part of the control block 4 pushes a space between a water inlet pipe 9 and a water outlet pipe 10 to make mud temporarily unable to pass through, an electric telescopic rod 14 is started, the electric telescopic rod 14 drives a movable plate 13 to push mud and impurities at the opening of the control block 4 of the movable plate 13 to the outer side of the device through a dirt cleaning port 16, then the fixed gear 6 rotates under the action of the torsion spring 7 to drive a transmission rod 8 to move upwards to make the control block 4 move upwards, the control block returns to the initial position, filtration is continued, after the work is finished, the control rod 2 is pressed downwards, the fastening nut 3 is rotated to limit the position of the control block 4, and the contact surfaces of the control block 4, the water inlet pipe 9 and the water outlet pipe 10 and the control block 4, the water inlet pipe 9 and the water outlet pipe 10 are sprayed with tungsten carbide coatings, making it more wear resistant and corrosion resistant is the working process of the device and the details not described in detail in this description, such as the device housing 1, the electric telescopic rod 14, etc., are well known in the art to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a wear-resisting hard sealing gate valve, includes device shell (1), electric telescopic handle (14), spacing groove (15) and clear dirty mouthful (16), its characterized in that: the device is characterized in that a control rod (2) is arranged at the center of the upper surface of a shell (1), a fastening nut (3) is sleeved on the outer side surface of the control rod (2), a control block (4) is connected to the tail end of the control rod (2), a fixing frame (5) is installed on the upper side of the control block (4), a fixed gear (6) is installed on the surface of the fixing frame (5), a torsion spring (7) is arranged inside the fixed gear (6), a transmission rod (8) is connected to the outer side of the fixed gear (6), the transmission rod (8) is fixed to the surface of the control rod (2), a water inlet pipe (9) is connected to the left side of the control block (4), a water outlet pipe (10) is connected to the right side of the control block (4), a filter screen (11) is arranged at the front end of the water outlet pipe (10), and a flange plate (12) is installed at the front end of the water inlet pipe (9) and the tail end of the water outlet pipe (10), the water inlet pipe is characterized in that a movable plate (13) is arranged below the water inlet pipe (9) and the water outlet pipe (10), an electric telescopic rod (14) is connected to the back of the movable plate (13), a limiting groove (15) is formed under the control block (4), and a dirt cleaning opening (16) is formed in the left side of the movable plate (13).

2. A wear resistant hard seal gate valve as defined in claim 1 wherein: the device is characterized in that the device shell (1) is square, threads are arranged on the surface of the control rod (2), the control rod (2) is in sliding connection with the device shell (1), and the distance between the fastening nut (3) and the upper surface of the device shell (1) is equal to the distance between the bottom surface of the control block (4) and the inner bottom surface of the device shell (1).

3. A wear resistant hard seal gate valve as defined in claim 1 wherein: the size of the opening of the control block (4) is larger than the diameters of the water inlet pipe (9) and the water outlet pipe (10), the width of the control block (4) is equal to the distance between the water inlet pipe (9) and the water outlet pipe (10), and the shape and the size of the limiting groove (15) are the same as those of the control block (4).

4. A wear resistant hard seal gate valve as defined in claim 1 wherein: the fixed frame (5) is fixedly connected with the inside of the device shell (1), the outer edge of the transmission rod (8) is in a tooth-shaped structure, the transmission rod (8) is meshed with the fixed gear (6), and the fixed gear (6) is fixedly connected with the torsion spring (7).

5. A wear resistant hard seal gate valve as defined in claim 1 wherein: the water inlet pipe (9) and the water outlet pipe (10) are connected with the device shell (1) in an embedded mode, the filter screen (11) is circular, the diameter of the filter screen (11) is equal to that of the water outlet pipe (10), and the filter screen (11) is fixedly connected with the water outlet pipe (10).

6. A wear resistant hard seal gate valve as defined in claim 1 wherein: the portable plate (13) forms a left-right moving structure on the bottom surface inside the device shell (1) through an electric telescopic rod (14), the number of the electric telescopic rods (14) is 2, the distance between the 2 electric telescopic rods (14) is larger than the size of the bottom of the control block (4), and the shape and the size of the portable plate (13) are the same as those of the dirt cleaning opening (16).