CN215596427U

CN215596427U - Gate valve for controlling medium switch of low-pressure pipeline

Info

Publication number: CN215596427U
Application number: CN202122317421.5U
Authority: CN
Inventors: 林义
Original assignee: Zigong Industrial Valve Manufacture Co ltd
Current assignee: Zigong Industrial Valve Manufacture Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-01-21
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a gate valve for medium switch control of a low-pressure pipeline, which comprises a valve seat and a transmission case, wherein support columns are respectively arranged at the positions, close to the front surface, of the bottom end of the valve seat and the position of the rear surface, of the bottom end of the support columns on two sides, a base is arranged at the positions of the bottom ends of the support columns on the two sides, connecting flanges are respectively arranged at the positions of the two sides of the valve seat, a connecting seat is arranged at the middle position of the top end of the valve seat, the transmission case is arranged at the position of the top end of the connecting seat, a side case is arranged at one side position of the transmission case, and a rotating shaft is arranged at the middle position inside the valve seat through a bearing. The butterfly valve solves the problems that the fixing and supporting structure of the existing device is simple, the vibration force can not be buffered, the screw rod at the joint is easy to loosen, the fluid is leaked, the sealing interference fit between the butterfly plate and the valve body is large, the physical consumption of the rotating body of the adjusting shaft is large, and the use comfort is poor, and the use comfort and the service life of the butterfly valve are improved.

Description

Gate valve for controlling medium switch of low-pressure pipeline

Technical Field

The utility model relates to the technical field of gate valves, in particular to a gate valve for controlling a low-pressure pipeline medium switch.

Background

A gate valve, also called a flap valve, is a regulating valve with a simple structure, and can be used for on-off control of low-pressure pipeline media, namely a valve with a closing part (a valve clack or a butterfly plate) which is a disk and rotates around a valve shaft to open and close, and the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe mainly plays a role in cutting off and throttling. The opening and closing piece of the gate valve is a disc-shaped butterfly plate and rotates around the axis of the opening and closing piece in the valve body, so that the opening and closing or adjusting purpose is achieved.

The existing gate valve is simple in fixed supporting structure, vibration force received by the existing gate valve cannot be buffered, a screw rod at a joint is very easy to loosen, fluid leakage is caused, sealing interference fit between a butterfly plate and a valve body is large, physical consumption of a rotating shaft of an adjusting shaft is large, use comfort is not good, and therefore the gate valve for controlling the medium switch of the low-pressure pipeline is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a gate valve for controlling a medium switch of a low-pressure pipeline, which has the advantages of easy closing and opening, and solves the problems that the existing device is simple in fixed supporting structure, cannot buffer the received vibration force, is easy to cause the screw rod at the joint to loosen, so that fluid leakage is caused, the sealing interference fit between a butterfly plate and a valve body is large, the consumption of the rotating physical force of an adjusting shaft is large, and the use comfort is poor.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a gate valve for low pressure pipeline medium on-off control, includes disk seat and transmission case, wherein the disk seat bottom is close to preceding surface position department and all installs the support column with rear surface position department, both sides support column bottom position department installs the base, flange is all installed to disk seat both sides position department, disk seat top intermediate position department installs the connecting seat, connecting seat top position department installs the transmission case, transmission case one side position department installs the side case, the axis of rotation is installed through the bearing in the inside intermediate position department of disk seat.

Preferably, the base is provided with telescopic columns at four angular positions at the bottom end of the base, the bottom plate is arranged at the bottom end of each telescopic column, and the spring A is arranged at the position, between the bottom plate and the base, of the outer surface of each telescopic column.

Preferably, rubber pads are arranged at the positions, close to the inner surface, of the connecting flanges on the two sides.

Preferably, the outer surface of the rotating shaft is located at the upper end of the inner wall of the valve seat and is provided with a sealing ring at the lower end, the outer surface of the rotating shaft is located at the middle position of the inner surface of the valve seat and is provided with a butterfly plate, and rubber rings are arranged at the two sides of the outer surface of the butterfly plate.

Preferably, a worm shaft is installed at the middle position inside the side box through a bearing, a wheel disc is installed at one end of the front surface of the worm shaft, and a clamping table is installed on the outer surface of one end, close to the rear surface, of the worm shaft.

Preferably, the top end of the rotating shaft is positioned in the transmission case and is provided with a gear, and the gear is meshed with the worm shaft.

Preferably, a position, close to the rear surface, of the top end of the side box is sleeved with a limiting shaft, the bottom end of the limiting shaft is located at one side of the clamping table and provided with a limiting block, and the outer surface of the limiting shaft is located at the top end inside the side box and provided with a spring B through a spring seat.

Compared with the prior art, the utility model has the following beneficial effects:

1. the butterfly plate is easily opened and closed by arranging the worm shaft, the gear, the wheel disc and the rotating shaft, the worm shaft is arranged at the middle position in the side box through the bearing, the wheel disc is arranged at the position of one end of the front surface of the worm shaft, the clamping table is arranged on the outer surface of one end, close to the rear surface, of the worm shaft, the gear is arranged at the top end of the rotating shaft in the transmission box and meshed with the worm shaft, and therefore the problems that the butterfly plate is large in sealing interference fit with the valve body, the rotating physical strength of the adjusting shaft is large in consumption, and the use comfort is poor are solved, and the use comfort of the butterfly plate is improved.

2. The spring A is arranged at the position of the gap between the bottom plate and the base on the outer surface of the telescopic column, so that the effects of buffering the received vibration force and increasing the use stability are achieved, the support columns are arranged at the positions, close to the front surface, and the rear surface, of the bottom end of the valve seat, the bases are arranged at the positions of the bottom ends of the support columns at the two sides, the telescopic columns are arranged at four angular positions of the bottom ends of the bases at the two sides, and the bottom plate is arranged at the position of the bottom end of the telescopic column, so that the problems that the fixed support structure is simple, the received vibration force cannot be buffered, the screw rod at the joint is easy to loosen, and the fluid leakage is caused are solved, and the use stability of the utility model is improved.

3. The butterfly plate anti-loosening device has the advantages that the effect of preventing the butterfly plate from loosening is achieved by arranging the limiting shaft, the spring B and the limiting block, the limiting shaft is arranged at the position, close to the rear surface, of the top end of the side box, the limiting block is arranged at the position, located on one side of the clamping table, of the bottom end of the limiting shaft, and the spring B is arranged at the position, located on the top end inside the side box, of the outer surface of the limiting shaft through the spring seat, so that the problem that the butterfly plate is prone to loosening when the butterfly plate is half opened under the action of fluid, the opening degree of the valve body is changed, and the throttling effect is influenced is solved, and the throttling effect of the butterfly plate anti-loosening device is improved.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is an enlarged view of A in FIG. 1;

FIG. 3 is a schematic cross-sectional view of the present invention;

FIG. 4 is an enlarged view of B in FIG. 3;

FIG. 5 is an enlarged view of the structure of C in FIG. 3;

FIG. 6 is a schematic top view of the transmission case and the side case of the present invention;

FIG. 7 is a pictorial representation of the present invention.

In the figure: 1. a base; 2. a support pillar; 3. a valve seat; 4. a connecting seat; 5. a transmission case; 6. a worm shaft; 7. a side box; 8. a wheel disc; 9. a connecting flange; 10. a rubber pad; 11. a base plate; 12. a spring A; 13. a telescopic column; 14. a gear; 15. a rotating shaft; 16. a butterfly plate; 17. a rubber ring; 18. a seal ring; 19. a limiting block; 20. clamping a platform; 21. a spring B; 22. and a limiting shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and fig. 2, the technical solution of the gate valve for medium switch control of the low-pressure pipeline provided by the present invention is as follows: a gate valve for medium switch control of a low-pressure pipeline comprises a valve seat 3 and a transmission case 5, wherein support columns 2 are respectively arranged at the positions, close to the front surface, of the bottom end of the valve seat 3, the positions, close to the rear surface, of the bottom end of the support columns 2 at the two sides are provided with a base 1, connecting flanges 9 are respectively arranged at the positions, close to the two sides, of the two sides, a connecting seat 4 is arranged at the middle position of the top end of the valve seat 3, the position, close to the top end of the connecting seat 4 is provided with the transmission case 5, a side case 7 is arranged at one side of the transmission case 5, a rotating shaft 15 is arranged at the middle position inside the valve seat 3 through a bearing, telescopic columns 13 are respectively arranged at four corner positions, close to the bottom ends of the base 1 at the two sides, a bottom plate 11 is arranged at the bottom end of each telescopic column 13, a spring A12 is arranged at the position, which is positioned at the gap between the bottom plate 11 and the base 1, and used for increasing the use stability of the utility model, rubber pads 10 are respectively arranged at the positions, close to the connecting flanges 9 at the inner surfaces, the sealing performance of the connection part is increased.

Referring to fig. 3 and 4, the technical solution of the gate valve for medium switch control of the low-pressure pipeline provided by the present invention is as follows: the utility model provides a gate valve for low pressure pipeline medium switch control, including disk seat 3 and

transmission case

5, 3 bottoms of disk seat are close to preceding surface position department and all install support column 2 with back surface position department, 2 bottom position departments of both sides support

column install base

1, 3 both sides positions of disk seat department all installs

flange

9, 3 top intermediate position departments of disk seat

install connecting seat

4, 4 top position departments of connecting seat

install transmission case

5, 5 one side positions of transmission case department

install side case

7, 3 inside intermediate position departments of disk seat install axis of rotation 15 through the bearing, 15 surfaces of axis of rotation are located 3 inner walls of disk seat upper end position departments and lower extreme position department and install

sealing washer

18, 15 surfaces of axis of rotation are located 3 internal surface intermediate position departments of disk seat and install

butterfly plate

16, 16 surfaces both sides positions department all installs rubber ring 17, increase butterfly plate 16's sealed effect.

Referring to fig. 5 and 6, the technical solution of the gate valve for medium switch control of the low-pressure pipeline provided by the present invention is as follows: a gate valve for medium switch control of a low-pressure pipeline comprises a valve seat 3 and a transmission case 5, wherein support columns 2 are respectively arranged at the positions, close to the front surface, of the bottom end of the valve seat 3 and the position of the rear surface, of the bottom end of the support columns 2 at the two sides, a base 1 is arranged at the positions, at the bottom ends, of the support columns 2 at the two sides, a connecting flange 9 is respectively arranged at the positions, at the two sides, of the valve seat 3, a connecting seat 4 is arranged at the middle position of the top end of the valve seat 3, the transmission case 5 is arranged at the position of the top end of the connecting seat 4, a side case 7 is arranged at one side of the transmission case 5, a rotating shaft 15 is arranged at the middle position inside the valve seat 3 through a bearing, a worm shaft 6 is arranged at the middle position inside the side case 7 through a bearing, a wheel disc 8 is arranged at one end of the front surface of the worm shaft 6, a clamping table 20 is arranged on the outer surface of the end, a gear 14 is arranged at the top end, which is arranged inside the transmission case 5, and the gear 14 is meshed with the worm shaft 6, be convenient for drive axis of rotation 15 through worm axle 6 and rotate, be convenient for practice thrift physical power, spacing axle 22 has been cup jointed near rear surface position department on the side case 7 top, and spacing axle 22 bottom is located 20 one side positions of ka tai and locates to install stopper 19 for restrict worm axle 6, prevent that butterfly plate 16 is not hard up, and spring B21 is installed through the spring holder in the inside top position department of side case 7 to spacing axle 22 surface.

The working principle is as follows: after the utility model is installed, the utility model is connected with a pipeline through a connecting flange 9, when a butterfly plate 16 needs to be closed and fluid is cut off, a limiting shaft 22 is pulled upwards, a limiting block 19 is driven to move upwards through the limiting shaft 22, a worm shaft 6 is driven to rotate through a wheel disc 8, a gear 14 is driven to rotate through the worm shaft 6, a rotating shaft 15 is driven to rotate through the gear 14, the butterfly plate 16 is driven to rotate through the rotating shaft 15, the inner surface of a valve seat 3 is sealed by the butterfly plate 16, throttling of the fluid is realized, after the throttling is finished, the limiting shaft 22 is loosened, the limiting shaft 22 is driven to move downwards through a spring B21, the limiting block 19 is driven to move downwards through the limiting shaft 22, the rotation of the worm shaft 6 is limited through the limiting block 19 and a clamping table 20, the butterfly plate 16 is prevented from loosening, in the using process, the vibration force applied to the utility model is buffered through a spring A12 and a telescopic column 13, the stability of the utility model is increased, and the looseness of a pipeline joint is prevented, so far, the work flow of the equipment is finished.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A gate valve for low pressure pipeline medium switch control, includes disk seat (3) and transmission case (5), its characterized in that: disk seat (3) bottom is close to preceding surface position department and all installs support column (2), both sides with back surface position department support column (2) bottom position department installs base (1), flange (9) are all installed to disk seat (3) both sides position department, disk seat (3) top intermediate position department installs connecting seat (4), connecting seat (4) top position department installs transmission case (5), transmission case (5) one side position department installs side case (7), disk seat (3) inside intermediate position department installs axis of rotation (15) through the bearing.

2. A gate valve for low pressure pipe media switch control as claimed in claim 1 wherein: both sides base (1) bottom four angular position departments all install flexible post (13), bottom plate (11) are installed to flexible post (13) bottom position department, flexible post (13) surface is located bottom plate (11) and base (1) clearance position department and installs spring A (12).

3. A gate valve for low pressure pipe media switch control as claimed in claim 1 wherein: rubber pads (10) are arranged at the positions, close to the inner surface, of the connecting flanges (9) on the two sides.

4. A gate valve for low pressure pipe media switch control as claimed in claim 1 wherein: the outer surface of the rotating shaft (15) is located at the upper end of the inner wall of the valve seat (3) and is provided with a sealing ring (18) at the lower end, the outer surface of the rotating shaft (15) is located at the middle position of the inner surface of the valve seat (3) and is provided with a butterfly plate (16), and rubber rings (17) are arranged at the positions of two sides of the outer surface of the butterfly plate (16).

5. A gate valve for low pressure pipe media switch control as claimed in claim 1 wherein: worm axle (6) are installed through the bearing in side case (7) inside intermediate position department, rim plate (8) are installed to worm axle (6) front surface one end position department, worm axle (6) are close to rear surface one end surface and are installed card platform (20).

6. A gate valve for low pressure pipe media switch control as claimed in claim 1 wherein: the top end of the rotating shaft (15) is positioned in the transmission case (5) and is provided with a gear (14), and the gear (14) is meshed with the worm shaft (6).

7. A gate valve for low pressure pipe media switch control as claimed in claim 1 wherein: the top end of the side box (7) is close to the position of the rear surface and is sleeved with a limiting shaft (22), the bottom end of the limiting shaft (22) is located at one side of the clamping table (20) and is provided with a limiting block (19), and the outer surface of the limiting shaft (22) is located at the position of the top end inside the side box (7) and is provided with a spring B (21) through a spring seat.