CN212004285U

CN212004285U - High-sealing leakage-proof straight-through stop valve

Info

Publication number: CN212004285U
Application number: CN202020514111.5U
Authority: CN
Inventors: 巴玉泉; 闫永翰; 艾德权
Original assignee: Tianjin Valve Expo Machinery Co ltd
Current assignee: Tianjin Valve Expo Machinery Co ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-11-24
Anticipated expiration: 2030-04-10

Abstract

The utility model discloses a high-sealing leakage-proof straight-through stop valve, which relates to the technical field of straight-through stop valves and comprises a valve body, a valve cover, an upper valve rod and a lower valve rod, wherein the valve cover is fixedly arranged at the top of the valve body, thread grooves are respectively arranged at the top and the bottom of the valve body, the outer wall of the upper valve rod is provided with an upper thread, the lower valve rod is internally provided with a lower thread, the upper valve rod is arranged at the top of the valve body after passing through the valve cover through the matching of the upper thread and the thread grooves, the bottom of the upper valve rod is fixedly provided with a valve clack structure, the lower valve rod is arranged at the bottom of the valve body through the matching of the lower thread groove, a water inlet channel is arranged in the valve body, one side of the water inlet channel is fixedly provided with a water inlet pipeline, the other side of the valve body is provided, can effectively prolong the service life of the utility model, and the practical value is improved.

Description

High-sealing leakage-proof straight-through stop valve

Technical Field

The utility model relates to a through stop valve technical field specifically is a high-sealing prevents straight-through stop valve of leaking.

Background

The straight-through stop valve is characterized in that a valve clack sealing surface and a valve seat sealing surface are tightly combined by means of valve rod pressure to prevent medium from flowing, the friction force between the sealing surfaces in the opening and closing process is small, the valve is wear-resistant, the opening height is small, the manufacturing process performance is good, and the like, and the straight-through stop valve is one of the most widely used valves in the current market and is disclosed in the Chinese patent authorization publication number: CN201920467939.7 discloses a high-sealing and leak-proof straight-through stop valve, in this patent document, the valve flap can be tightly clamped with the valve body in the horizontal direction, so as to reduce the force applied to the valve rod, not only improving the sealing performance, but also prolonging the service life of the valve rod, although the pressure of the valve rod is reduced, the force applied to the valve flap can not be reduced, and the valve flap is used as the component of the valve which most directly controls the medium circulation, and can be subject to greater water pressure when being closed for a long time, and the service life can naturally also be affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high sealed straight-through stop valve of preventing leaking to the too big problem that influences valve clack life of water pressure that the valve clack that provides received in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a high-sealing leakage-proof straight-through stop valve comprises a valve body, a valve cover, an upper valve rod and a lower valve rod, wherein the valve cover is fixedly arranged at the top of the valve body, thread grooves are formed in the top and the bottom of the valve body, upper threads are formed in the outer wall of the upper valve rod, lower threads are formed in the lower valve rod, the upper valve rod is installed at the top of the valve body through the matching of the upper threads and the thread grooves after penetrating through the valve cover, the lower valve rod is installed at the bottom of the valve body through the matching of the lower threads and the thread grooves, a valve clack structure is fixedly arranged at the bottom of the upper valve rod, a water inlet channel is formed in the valve body, a water inlet pipeline is fixedly arranged at one side of the water inlet channel, a water drainage channel is formed at the other side of the valve body, and a conical top plate is fixedly arranged at the top of the lower valve rod.

As a further aspect of the present invention: and a sealing ring is fixedly arranged in the valve cover.

As a further aspect of the present invention: the upper valve rod is fixedly provided with an upper rotating handle at the top, the lower valve rod is fixedly provided with a lower rotating handle at the bottom, and the upper rotating handle and the lower rotating handle are both provided with anti-skid lines.

As a further aspect of the present invention: the valve clack structure includes partial pressure support and valve clack body, the valve clack body is fixed to be set up on the partial pressure support.

As a further aspect of the present invention: the partial pressure support includes fixed chassis, partial pressure branch and welding dish, the welding dish passes through partial pressure branch welding is in fixed chassis top.

As a further aspect of the present invention: the welding disc is welded at the bottom of the upper valve rod.

As a further aspect of the present invention: the number of the partial pressure supporting rods and the number of the welding discs are five.

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

the utility model discloses except having the characteristics of high sealed preventing leaking, still support the valve clack structure through lower valve rod, cooperation valve clack structure self can be closing to the partial pressure effect of valve clack body the utility model discloses the water pressure that very big reduction valve clack body received during, can effectively increase the utility model discloses a life, practical value obtains improving.

Drawings

FIG. 1 is a cross-sectional view of a high seal, leak-proof, straight-through shut-off valve.

Fig. 2 is a schematic view of a valve cover structure part in a straight-through type stop valve with high sealing and leakage prevention.

Fig. 3 is a schematic structural diagram of a partial pressure bracket in the straight-through stop valve with high sealing and leakage prevention.

In the figure: 1-valve body, 2-valve cover, 3-upper valve rod, 4-lower valve rod, 5-sealing ring, 6-upper screw thread, 7-lower screw thread, 8-upper rotating handle, 9-lower rotating handle, 10-water inlet pipeline, 11-water outlet pipeline, 12-water inlet channel, 13-water outlet channel, 14-valve clack structure, 15-conical top plate, 16-partial pressure support, 17-valve clack body, 18-fixed chassis, 19-welding disk and 20-partial pressure support rod.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-3, a high-sealing and leak-proof straight-through stop valve includes a valve body 1, a valve cover 2, an upper valve rod 3 and a lower valve rod 4;

as shown in figure 1, a valve cover 2 is fixedly arranged at the top of a valve body 1, thread grooves are respectively arranged at the top and the bottom of the valve body 1, an upper thread 6 is arranged on the outer wall of an upper valve rod 3, a lower thread 7 is arranged in a lower valve rod 4, the upper valve rod 3 is arranged at the top of the valve body 1 through the matching of the upper thread 6 and the thread grooves after passing through the valve cover 2, the lower valve rod 4 is arranged at the bottom of the valve body 1 through the matching of the thread grooves of the lower thread 7, a valve clack structure 14 is fixedly arranged at the bottom of the upper valve rod 3, a water inlet channel 12 is arranged in the valve body 1, a water inlet pipeline 10 is fixedly arranged at one side of the water inlet channel 12, a water outlet channel 13 is arranged at the other side of the valve body 1, a water outlet pipeline 11 is fixedly arranged at one side of the water outlet channel 13, a valve cover 2 mechanism is fixedly arranged, the bottom of the lower valve rod 4 is fixedly provided with a lower rotating handle 9, and the upper rotating handle 8 and the lower rotating handle 9 are both provided with anti-skid grains;

the utility model discloses in, all need set up sealed the pad on the outer wall of going up valve rod 3 and lower valve rod 4 and guarantee to seal, except having the characteristics of high sealed preventing leaking, the utility model discloses an innovation part lies in: support valve clack structure 14 through toper roof 15 on the lower valve rod 4, exert an ascending holding power to valve clack structure 14, closing the utility model discloses time valve clack structure 14 can receive decurrent water pressure to can close the utility model discloses the water pressure that very big reduction valve clack structure 14 received in the time can effectively increase the utility model discloses a life, practical value obtains improving.

Combine fig. 2 and fig. 3 to show, valve clack structure 14 includes partial pressure support 16 and valve clack body 17, and valve clack body 17 is fixed to be set up on partial pressure support 16, and partial pressure support 16 includes fixed chassis 18, partial pressure branch 20 and welding dish 19, and welding dish 19 passes through partial pressure branch 20 welding at fixed chassis 18 top, and welding dish 19 welds in last valve rod 3 bottom, and partial pressure branch 20 and welding dish 19's quantity is five the utility model discloses in, each valve clack body 17 is all established on partial pressure branch 20 of partial pressure support 16, and is fixed connection to from the even pressure dispersion that receives valve clack body 17 in each position, can effectively reduce the pressure that valve clack body 17 received, the cooperation is down conical roof 15 on the valve rod 4 can prolong greatly to valve clack structure 14's support effect the utility model discloses a life.

The utility model discloses a theory of operation is: when the utility model is used, the water inlet pipeline 10 is only needed to be communicated with the water inlet end of the external water pipe, the drainage pipeline 11 is communicated with the drainage end of the external water pipe for use, the position of the valve clack structure 14 can be adjusted through the rotation of the upper valve rod 3 when the utility model is used, due to the structural design of the water inlet channel 12 and the drainage channel 13 in the valve body 1, as shown in figure 1 in particular, the water inlet channel 12 and the drainage channel 13 can be separated after the valve clack structure 14 descends to a certain degree, thereby realizing the basic effect of controlling the opening and closing of fluid, different from other valves, the utility model additionally arranges the lower valve rod 4 at the bottom, after the utility model is closed, the conical top plate 15 can be screwed up through rotating the lower valve rod 4, so that the conical top plate 15 is contacted with the valve clack structure 14 and is appropriately screwed up, so that the conical top plate 15 supports the valve clack structure, cooperate the design of valve clack structure 14 simultaneously, each valve clack body 17 is all established on partial pressure branch 20 of partial pressure support 16, and is fixed connection to from the even pressure dispersion that receives valve clack body 17 in each position, both cooperate the pressure dispersion that realizes valve clack body 17, can effectively reduce the pressure that valve clack body 17 received, increase the utility model discloses a life.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The high-sealing leakage-proof straight-through stop valve comprises a valve body (1), a valve cover (2), an upper valve rod (3) and a lower valve rod (4), and is characterized in that the valve cover (2) is fixedly arranged at the top of the valve body (1), thread grooves are formed in the top and the bottom of the valve body (1), upper threads (6) are formed in the outer wall of the upper valve rod (3), lower threads (7) are formed in the lower valve rod (4), the upper valve rod (3) penetrates through the valve cover (2) and is installed at the top of the valve body (1) through the cooperation of the upper threads (6) and the thread grooves, a valve clack structure (14) is fixedly arranged at the bottom of the upper valve rod (3), the lower valve rod (4) is installed at the bottom of the valve body (1) through the cooperation of the lower threads (7) and the thread grooves, a water inlet channel (12) is formed in the valve body (1, fixed inlet channel (10) that is provided with in inhalant canal (12) one side, drainage channel (13) have been seted up to valve body (1) opposite side, drainage channel (13) one side is fixed and is provided with drainage pipe (11), it is fixed to be provided with valve gap (2) mechanism to go up valve rod (3) bottom, valve rod (4) top is fixed down and is provided with toper roof (15).

2. A high-seal leakage-proof straight-through stop valve according to claim 1, characterized in that a sealing ring (5) is fixedly arranged in the valve cover (2).

3. A high-sealing and leakage-preventing straight-through stop valve according to claim 1, wherein the top of the upper valve rod (3) is fixedly provided with an upper rotating handle (8), the bottom of the lower valve rod (4) is fixedly provided with a lower rotating handle (9), and the upper rotating handle (8) and the lower rotating handle (9) are both provided with anti-skid threads.

4. A high seal leakage prevention straight-through shut-off valve according to claim 1, characterized in that the flap structure (14) comprises a partial pressure support (16) and a flap body (17), the flap body (17) being fixedly arranged on the partial pressure support (16).

5. A high-seal leakage-proof straight-through stop valve according to claim 4, characterized in that said partial pressure bracket (16) comprises a fixed bottom plate (18), a partial pressure strut (20) and a welding plate (19), said welding plate (19) is welded on top of said fixed bottom plate (18) through said partial pressure strut (20).

6. A high seal and leakage prevention straight-through shut-off valve according to claim 5, wherein the welding disc (19) is welded to the bottom of the upper valve stem (3).

7. A high seal and leakage prevention straight-through shut-off valve according to claim 5, wherein the number of said pressure-dividing strut (20) and said welding discs (19) is five.