CN215806529U

CN215806529U - Gate valve with high sealing performance

Info

Publication number: CN215806529U
Application number: CN202122157981.9U
Authority: CN
Inventors: 金瑞建; 胡道忠; 叶迅良; 叶超超; 庞庭; 丁新; 吕智健
Original assignee: Zhejiang Bertley Technology Co ltd
Current assignee: Zhejiang Bertley Technology Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-02-11
Anticipated expiration: 2031-09-07

Abstract

The utility model belongs to the field of gate valves, in particular to a high-sealing gate valve, which aims at solving the problems that the existing gate valve is frequently leaked when in use, thereby causing waste, further increasing the cost, being difficult to clean, consuming a large amount of time and labor, having poor use effect and poor sealing effect, and the utility model provides a scheme that the gate valve comprises a valve body, a communicating pipe is fixedly connected inside the valve body, two ends of the communicating pipe penetrate through the valve body and are fixedly connected with a flange, the top of the valve body penetrates through a thread and is connected with a valve rod, and the top of the valve rod is fixedly connected with a turntable, in the utility model, the opening and closing functions of the gate valve are realized by rotating the turntable, and simultaneously, the descending of the valve rod is utilized to drive a first gear and a second gear to rotate, and finally drive a third valve clack and a second valve clack to rotate, thereby further ensuring the sealing performance of the device, the arrangement of the first sealing ring and the sealing strip also improves the sealing performance of the device.

Description

Gate valve with high sealing performance

Technical Field

The utility model relates to the technical field of gate valves, in particular to a gate valve with high sealing performance.

Background

The gate valve is an opening and closing piece gate plate, the movement direction of the gate plate is perpendicular to the fluid direction, the gate valve can only be fully opened and fully closed and cannot be adjusted and throttled, the gate valve is sealed through contact of a valve seat and the gate plate, usually, a sealing surface can be subjected to surfacing welding of metal materials to increase abrasion resistance, such as surfacing welding of 1Cr13, STL6, stainless steel and the like, the gate plate is provided with a rigid gate plate and an elastic gate plate, and the gate valve is divided into the rigid gate valve and the elastic gate valve according to different gate plates.

When the existing gate valve is used, the situation of liquid leakage often occurs, waste is caused, cost is increased, cleaning is difficult, a large amount of time and manpower are consumed, the using effect is poor, the sealing effect is poor, and using feeling is poor, so that the gate valve with high sealing performance is provided for solving the problem of flicker.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that in the prior art, when a gate valve is used, liquid leakage often occurs, waste is caused, cost is increased, cleaning is difficult, a large amount of time and labor are consumed, the use effect is poor, the sealing effect is poor, and the use feeling is poor.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a gate valve of high leakproofness, includes the valve body, the inside fixedly connected with communicating pipe of valve body, the both ends of communicating pipe all run through valve body and fixedly connected with flange, the top of valve body runs through threaded connection and has the valve rod, the top fixedly connected with carousel of valve rod, the bottom of valve rod extends to the inside and the swivelling joint of communicating pipe has first valve clack, first valve clack is inconsistent with the inner wall of communicating pipe, the inside of valve body is provided with the airtight subassembly that is used for increasing the seal.

Preferably, airtight subassembly includes two racks that sliding connection set up at the symmetry of valve body both sides inner wall, two the equal fixedly connected with second set-square in one side that the rack is close to each other, the first set-square of one side fixedly connected with of valve rod, first set-square and two second set-squares are inconsistent, two the one end that the rack was kept away from each other respectively with the same spring of fixedly connected with between the both sides inner wall of valve body.

Preferably, airtight subassembly is still including rotating the first pivot of connecting at the second pivot of communicating pipe bottom inner wall and rotating the connection at communicating pipe top inner wall, the top of first pivot is run through communicating pipe and the first gear of fixedly connected with, the bottom of second pivot is run through communicating pipe and fixedly connected with second gear, first gear and second gear mesh with two racks respectively mutually, the fixed cover of outer wall of first pivot is equipped with the third valve clack, the fixed cover of outer wall of second pivot is equipped with the second valve clack.

Preferably, the outer wall of the first valve clack is fixedly sleeved with a first sealing ring.

Preferably, the top of the first valve clack is fixedly connected with a transverse plate, and the bottom of the transverse plate is fixedly connected with a sealing strip.

Preferably, the outer wall of valve rod rotates the cover and is equipped with the ring, one side fixedly connected with connecting rod of ring, one end of connecting rod and one side fixed connection of first set-square.

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

1. according to the utility model, when the gate valve needs to be closed, the turntable is rotated, the turntable drives the valve rod to rotate, the valve rod drives the circular ring and the first valve clack to vertically move downwards, the circular ring drives the connecting rod to vertically move downwards, the connecting rod drives the first triangular plate to vertically move downwards, the first valve clack blocks the inside of the communicating pipe, and the arrangement of the first sealing ring can ensure the sealing property of the device;

2. according to the utility model, the first valve clack drives the transverse plate to vertically move downwards, the transverse plate drives the sealing strip to vertically move downwards, and then the bottom of the sealing strip is abutted against the inner wall of the bottom of the communicating pipe, so that the sealing performance of the device is further ensured, the first triangular plate pushes the two second triangular plates to be away from each other, and the second triangular plates drive the two racks to be away from each other and extrude the spring;

3. according to the utility model, the rack drives the first gear and the second gear to rotate, the first gear drives the first rotating shaft to rotate, the first rotating shaft drives the third valve flap to rotate, the second gear drives the second rotating shaft to rotate, the second rotating shaft drives the second valve flap to rotate, and the arrangement of the second valve flap and the third valve flap further ensures the sealing property of the device.

According to the utility model, the opening and closing functions of the gate valve are realized by rotating the rotary disc, the first gear and the second gear are driven to rotate by descending of the valve rod, and the third valve clack and the second valve clack are finally driven to rotate, so that the sealing property of the device is further ensured, and the sealing property of the device is improved by the arrangement of the first sealing ring and the sealing strip, and the device is simple in structure and convenient to operate.

Drawings

Fig. 1 is a schematic sectional view of a gate valve with high sealing performance according to the present invention;

FIG. 2 is a schematic sectional view of a gate valve with high sealing performance without a communicating pipe according to the present invention;

FIG. 3 is a schematic sectional view of a communication pipe according to the present invention;

FIG. 4 is a side view of the ring and connecting rod of the present invention.

In the figure: 1. a flange; 2. a first rotating shaft; 3. a first gear; 4. a valve body; 5. a valve stem; 6. a turntable; 7. a communicating pipe; 8. a spring; 9. a second rotating shaft; 10. a second gear; 11. a rack; 12. a first set square; 13. a second set square; 14. a first valve flap; 15. a first seal ring; 16. a transverse plate; 17. a sealing strip; 18. a second valve flap; 19. a third valve flap; 20. a connecting rod; 21. a circular ring.

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.

Example one

Referring to fig. 1-4, a gate valve of high leakproofness, including valve body 4, the inside fixedly connected with communicating pipe 7 of valve body 4, the both ends of communicating pipe 7 all run through valve body 4 and fixedly connected with flange 1, the top of valve body 4 runs through threaded connection has valve rod 5, the top fixedly connected with carousel 6 of valve rod 5, the bottom of valve rod 5 extends to the inside of communicating pipe 7 and rotates and be connected with first valve clack 14, first valve clack 14 is inconsistent with the inner wall of communicating pipe 7, the inside of valve body 4 is provided with the airtight subassembly that is used for increasing the leakproofness.

Example two

Referring to fig. 1-4, a gate valve of high leakproofness, including valve body 4, the inside fixedly connected with communicating pipe 7 of valve body 4, the both ends of communicating pipe 7 all run through valve body 4 and fixedly connected with flange 1, the top of valve body 4 runs through threaded connection has valve rod 5, the top fixedly connected with carousel 6 of valve rod 5, the bottom of valve rod 5 extends to the inside of communicating pipe 7 and rotates and is connected with first valve clack 14, first valve clack 14 is inconsistent with the inner wall of communicating pipe 7, the inside of valve body 4 is provided with the airtight subassembly that is used for increasing the leakproofness, airtight subassembly includes two racks 11 that sliding connection set up at the symmetry of the inner wall of valve body 4 both sides, the equal fixedly connected with second set-square 13 in one side that two racks 11 are close to each other, first set-square 12 of one side fixedly connected with of valve rod 5, first set-square 12 is inconsistent with two second set-squares 13, the one end that two racks 11 kept away from each other respectively with the same bullet of fixedly connected with between the inner wall of both sides of valve body 4 The spring 8, the sealing assembly further comprises a second rotating shaft 9 rotatably connected to the inner wall of the bottom of the communicating pipe 7 and a first rotating shaft 2 rotatably connected to the inner wall of the top of the communicating pipe 7, the top of the first rotating shaft 2 penetrates through the communicating pipe 7 and is fixedly connected with a first gear 3, the bottom of the second rotating shaft 9 penetrates through the communicating pipe 7 and is fixedly connected with a second gear 10, the first gear 3 and the second gear 10 are respectively meshed with two racks 11, a third valve flap 19 is fixedly sleeved on the outer wall of the first rotating shaft 2, a second valve flap 18 is fixedly sleeved on the outer wall of the second rotating shaft 9 and is used for ensuring the sealing performance of the device, a first sealing ring 15 is fixedly sleeved on the outer wall of the first valve flap 14, a transverse plate 16 is fixedly connected to the top of the first valve flap 14, a sealing strip 17 is fixedly connected to the bottom of the transverse plate 16, a circular ring 21 is rotatably sleeved on the outer wall of the valve rod 5, and a connecting rod 20 is fixedly connected to one side of the circular ring 21, one end of the connecting rod 20 is fixedly connected with one side of the first triangle 12.

The working principle is as follows: when the gate valve needs to be closed, the rotary table 6 is rotated, the rotary table 6 drives the valve rod 5 to rotate, the valve rod 5 drives the circular ring 21 and the first valve clack 14 to vertically move downwards, the circular ring 21 drives the connecting rod 20 to vertically move downwards, the connecting rod 20 drives the first triangular plate 12 to vertically move downwards, the first valve clack 14 blocks the inside of the communication pipe 7, the arrangement of the first sealing ring 15 can ensure the sealing performance of the device, meanwhile, the first valve clack 14 drives the transverse plate 16 to vertically move downwards, the transverse plate 16 drives the sealing strip 17 to vertically move downwards, further, the bottom of the sealing strip 17 is abutted against the inner wall of the bottom of the communication pipe 7, the sealing performance of the device is further ensured, the first triangular plate 12 pushes the two second triangular plates 13 to be away from each other, the second triangular plates 13 drive the two racks 11 to be away from each other and extrude the spring 8, the racks 11 drive the first gear 3 and the second gear 10 to rotate, the first gear 3 drives the first rotating shaft 2 to rotate, the first rotating shaft 2 drives the third valve flap 19 to rotate, the second gear 10 drives the second rotating shaft 9 to rotate, the second rotating shaft 9 drives the second valve flap 18 to rotate, and the arrangement of the second valve flap 18 and the third valve flap 19 further ensures the sealing performance of the device.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a gate valve of high leakproofness, includes valve body (4), its characterized in that, the inside fixedly connected with of valve body (4) communicating pipe (7), the both ends of communicating pipe (7) all run through valve body (4) and fixedly connected with flange (1), the top of valve body (4) runs through threaded connection and has valve rod (5), the top fixedly connected with carousel (6) of valve rod (5), the bottom of valve rod (5) extends to the inside of communicating pipe (7) and rotates and be connected with first valve clack (14), first valve clack (14) are inconsistent with the inner wall of communicating pipe (7), the inside of valve body (4) is provided with the airtight subassembly that is used for increasing the seal.

2. The gate valve with high sealing performance according to claim 1, wherein the sealing assembly comprises two symmetrically arranged racks (11) slidably connected to inner walls of two sides of the valve body (4), two second triangular plates (13) are fixedly connected to one sides of the racks (11) close to each other, a first triangular plate (12) is fixedly connected to one side of the valve rod (5), the first triangular plate (12) is abutted to the two second triangular plates (13), and one ends of the two racks (11) far away from each other are fixedly connected to the same spring (8) respectively with the inner walls of two sides of the valve body (4).

3. The gate valve with high sealing performance according to claim 1, wherein the sealing assembly further comprises a second rotating shaft (9) rotatably connected to the inner wall of the bottom of the communicating pipe (7) and a first rotating shaft (2) rotatably connected to the inner wall of the top of the communicating pipe (7), the top of the first rotating shaft (2) penetrates through the communicating pipe (7) and is fixedly connected with a first gear (3), the bottom of the second rotating shaft (9) penetrates through the communicating pipe (7) and is fixedly connected with a second gear (10), the first gear (3) and the second gear (10) are respectively meshed with the two racks (11), a third valve clack (19) is fixedly sleeved on the outer wall of the first rotating shaft (2), and a second valve clack (18) is fixedly sleeved on the outer wall of the second rotating shaft (9).

4. A gate valve with high sealing performance according to claim 1, characterized in that the outer wall of the first valve flap (14) is fixedly sleeved with a first sealing ring (15).

5. A gate valve with high sealing performance according to claim 1, characterized in that a cross plate (16) is fixedly connected to the top of the first valve flap (14), and a sealing strip (17) is fixedly connected to the bottom of the cross plate (16).

6. The gate valve with high sealing performance according to claim 1, wherein the outer wall of the valve rod (5) is rotatably sleeved with a circular ring (21), a connecting rod (20) is fixedly connected to one side of the circular ring (21), and one end of the connecting rod (20) is fixedly connected to one side of the first triangular plate (12).