CN210003849U

CN210003849U - gate valve with bypass

Info

Publication number: CN210003849U
Application number: CN201920507972.8U
Authority: CN
Inventors: 冷伯荣; 徐中亮; 丁梅
Original assignee: Suzhou Yueda Valve Co Ltd
Current assignee: Suzhou Yueda Valve Co Ltd
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2020-01-31
Anticipated expiration: 2029-04-15

Abstract

The utility model discloses an gate valve with bypass, which comprises a valve body, the valve gap, the top cap, the gear box, the gear, the end face gear, the valve rod, spacing axle, the nut, the loop bar, the valve clack, the valve handle, the dwang, the carousel, the second gear, the second end face gear, a fixed plate, the push rod, the connecting pipe, the bypass valve, sealed lid, second valve handle and dead lever.

Description

gate valve with bypass

Technical Field

The utility model relates to an kinds of gate valves specifically are gate valve with bypass belongs to gate valve application technical field.

Background

The gate valve is gate plates of opening and closing members, the movement direction of the gate plates is vertical to the fluid direction, the gate valve can only be fully opened and fully closed and can not be adjusted and throttled, the gate valve is sealed by the contact of a valve seat and the gate plates, usually, metal materials are overlaid on a sealing surface to increase the wear resistance, such as stainless steel and the like, the gate plates are provided with rigid gate plates and elastic gate plates, the gate valves are divided into rigid gate valves and elastic gate valves according to different gate plates, a bypass valve is arranged on a bypass pipe of a water inlet valve pipe section, a valve for filling water to balance the water pressure in front of and behind the water inlet valve is arranged, such as a pressure reducing valve, a control valve and a steam drain valve, a valve arranged on the bypass pipe is called as a bypass valve, the term of the bypass valve refers to a valve arranged on the bypass pipe, but does not refer to the type and the structure of a valve .

The existing gate valve with the bypass is protection measures of the main valve through a bypass valve, so that the problem that opening resistance is large and the valve is not easy to open due to the fact that pressure difference between the front and the back of the valve is too large is solved, however, for the gate valve with the bypass, pressure relief needs to be carried out through the bypass valve before the gate valve is opened during operation, fluid suddenly rushes into the gate valve when the gate valve is opened, and the problem that the gate valve is difficult to open is easily caused, and the gate valve can be opened only by closing the bypass valve after the bypass valve is opened for pressure relief during use, so that the complexity of operation is increased, the operation difficulty is increased, and the gate valve with the bypass is not beneficial to quick opening of the gate valve is solved .

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide gate valves with bypasses to solve the problems, the utility model realizes the purposes by the following technical proposal, namely, a gate valve with a bypass comprises a valve cover, an opening mechanism and a pressure relief mechanism which are arranged at the top of a valve body;

the opening mechanism comprises a valve body, a valve cover, a top cover, a gear box, a gear, a face gear, a valve rod, a limiting shaft, a nut, a loop bar, a valve clack, a 0 th valve handle, a rotating rod, a turntable, a second gear, a second face gear, a fixing plate and a push rod, wherein the valve body top pipe is fixedly connected with the valve cover through a bolt, the top end of the valve cover is fixedly connected with the top cover, the top end of the top cover is fixedly connected with the gear box, the gear box is internally and rotatably connected with the gear, the th gear is fixedly connected with the face gear in a meshing manner, the face gear is fixedly connected with the top end of the valve rod, the middle of the valve rod is fixedly connected with the limiting shaft, the bottom end of the valve rod is in a threaded connection manner, the nut is fixedly connected with the inside of the loop bar, the side wall of the loop bar is fixedly connected with the valve clack, the gear is fixedly connected with the second gear handle, the edge of the rotating rod valve handle is rotatably connected with the end of the rotating rod, the other end of the rotating rod is connected with the side wall of the turntable, the second gear is;

pressure release mechanism includes valve body, connecting pipe, bypass valve, sealed lid, second valve handle and dead lever, valve body lateral wall and connecting pipe intercommunication, communicate with the bypass valve between the connecting pipe, just connecting pipe top and sealed lid threaded connection, the bypass valve top rotates with the second valve handle to be connected, just second valve handle top and dead lever fixed connection.

Preferably, the th gear and the th valve handle are respectively positioned at two sides of the gear box, and the th gear and the th valve handle are fixedly connected through a rotating shaft.

Preferably, the valve rod penetrates through the gear box, the top cover and the valve cover respectively and extends to the interior of the sleeve rod, and the valve clack on the side wall of the sleeve rod is in sliding connection with the interior of the valve body.

Preferably, the number of the connecting pipes is two, the end parts of the two connecting pipes are respectively positioned at two sides of the valve clack, and the two connecting pipes are in sealing threaded connection with the sealing cover.

Preferably, the turntable and the second gear are both rotatably connected with the side wall of the valve cover, and the edge of the turntable is rotatably connected with the end part of the rotating rod.

Preferably, the number of the fixed rods is two, the two fixed rods are respectively and fixedly connected with two sides of the top end of the second valve handle, and two ends of the push rod are respectively contacted between the two fixed rods.

The utility model has the advantages that:

1. the gate valve with the bypass is simple in structure and convenient to operate, the pressure relief of the interior of the valve body through the connecting pipe is facilitated by opening the sealing cover, the convenience of operation is improved, the problem that the gate valve is difficult to open is avoided, the problem that fluid is easy to suddenly rush in due to the sudden opening of the gate valve is also avoided, and the problem that the valve body and a pipeline are damaged is avoided;

2. this gate valve with bypass makes the bypass valve also open through opening the gate valve in, is favorable to guaranteeing that the pressure differential of gate valve both sides is the same, has improved the convenience of having operated, conveniently operates, is favorable to reducing the complicated degree of difficulty of operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

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

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

fig. 3 is a schematic diagram of the side view structure of the utility model.

In the figure, the valve comprises a valve body 1, a valve cover 2, a valve cover 3, a top cover 4, a gear box 5, a th gear, a 6 st th face gear, a 7 th valve rod, a 8 th limiting shaft 9, a nut 10, a loop bar 11, a valve clack 12, a th valve handle 13, a rotating rod 14, a rotating disc 15, a second gear 16, a second face gear 17, a fixing plate 18, a push rod 19, a connecting pipe 20, a bypass valve 21, a sealing cover 22, a second valve handle 23 and a fixing rod.

Detailed Description

For the purpose of making the objects, features and advantages of the present invention more obvious and understandable, the following description will be made with reference to the accompanying drawings in the embodiments of the present invention, and it is clear and fully described the technical solutions in the embodiments of the present invention, and it is obvious that the embodiments described below are only some embodiments of of the present invention, but not all embodiments.

The technical solution of the present invention will be further explained by means of specific embodiments with reference to the drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-3, is a gate valve with bypass, including a valve cover 2, an opening mechanism and a pressure relief mechanism mounted on the top of a valve body 1;

the opening mechanism comprises a valve body 1, a valve cover 2, a top cover 3, a gear box 4, a second gear 5, a second face gear 6, a valve rod 7, a limiting shaft 8, a nut 9, a loop bar 10, a valve clack 11, a valve handle 12, a rotating rod 13, a rotating disc 14, a second gear 15, a second face gear 16, a fixing plate 17 and a push rod 18, wherein a top pipe of the valve body 1 is fixedly connected with the valve cover 2 in a sealing manner through bolts, the top end of the valve cover 2 is fixedly connected with the top cover 3, the top end of the top cover 3 is fixedly connected with the gear box 4 and used for rotating the gear wheels and 6, the gear box 4 is rotatably connected with the second face gear 8655, the gear gear 5 is fixedly connected with the second face gear 6 in a meshing manner, the face gear 6 is fixedly connected with the top end of the valve rod 7, the middle of the rotating rod 7 is fixedly connected with the limiting shaft 8, the bottom end of the nut 639 is in threaded connection with the nut 9, the nut 9 is fixedly connected with the inner part of the loop bar 10, the side wall of the loop bar 10 is fixedly connected with the valve clack 11, the valve rod is used for opening the edge of the valve body 4, the edge of the rotating wheel 12 is fixedly connected with the second face gear 13, the second face gear 13 is connected with the rotating wheel 13, the rotating shaft 3615, the end of the rotating wheel 16 is connected with the rotating disc 14, the rotating wheel 13, the bottom end of the second face gear 13;

pressure release mechanism includes valve body 1, connecting pipe 19, bypass valve 20, sealed lid 21, second valve handle 22 and

dead lever

23, 1 lateral wall of valve body and connecting pipe 19 intercommunication, communicate with bypass valve 20 between the connecting pipe 19, just connecting pipe 19 top and sealed lid 21 threaded connection for the inside pressure release of valve body 1, bypass valve 20 top is connected with second valve handle 22 rotation, just 22 tops of second valve handle and dead lever 23 fixed connection.

The gear and the valve are respectively located on two sides of the gear box 4, the gear 5 and the valve handle 12 are fixedly connected through a rotating shaft, so that the valve handle 12 can be conveniently rotated and the gear 5 can be conveniently driven to rotate simultaneously, the valve rods 7 respectively penetrate through the gear box 4, the top cover 3 and the valve cover 2 and extend into the sleeve rod 10, the valve clack 11 on the side wall of the sleeve rod 10 is slidably connected with the inside of the valve body 1, so that the valve rods 7 can be conveniently rotated and the valve clack 11 can be conveniently driven to vertically move, the two connecting pipes 19 are respectively located on two sides of the valve clack 11, the two connecting pipes 19 are in sealing threaded connection with the sealing cover 21, so that the inside of the valve body 1 can be conveniently communicated, the sealing cover 21 can be conveniently screwed, the rotary table 14 and the second gear 15 are both rotatably connected with the side wall of the valve cover 2, the edge of the rotary table 14 is rotatably connected with the end of the rotary rod 13, so that the rotary table 14 and the second gear 15 can be conveniently rotated and the rotary rod 23 can be conveniently driven to rotate, the two fixing rods 23 are respectively connected with the top ends of the fixing rod 23, and the push rod 23 can be conveniently connected with the two push rod 18.

The utility model discloses when using, when needing to carry out the pressure release, through rotating valve handle 12, valve handle 12 drives dwang 13 and rotates, make dwang 13 drive carousel 14 and rotate, the rotation of carousel 14 drives second gear 15 and rotates simultaneously, and then drive second terminal surface gear 16 and rotate, second terminal surface gear 16 drives push rod 18 and rotates on fixed plate 17 between it simultaneously, after the rotation of push rod 18 made push rod 18 support dead lever 20, promote dead lever 20 and rotate, make dead lever 20 drive second valve handle 22 and rotate, and then make second valve handle 22 rotate after opening bypass valve 20, make connecting pipe 19 communicate, make the pressure of valve body 1 both sides the same;

when the th valve handle 12 is rotated, the th gear 5 in the gear box 4 is driven to rotate, the th gear 5 drives the th face gear 6 to rotate, the valve rod 7 is driven to rotate, the limiting shaft 8 is driven to rotate in the top cover 3 by the valve rod 7, the nut 9 is driven to vertically move by the rotation of the valve rod 7, the nut 9 drives the sleeve rod 10 to simultaneously move, the valve clack 11 is driven to move by the sleeve rod 10, the flow of fluid is realized after the valve clack 11 is opened, the valve body 1 and the bypass valve 20 can be opened only by rotating the th valve handle 12, the convenience of operation is improved, when the pressure on two sides of the valve body 1 is abnormal atmospheric pressure, the pressure relief on two sides of the bypass valve 20 and the valve body 1 is realized by unscrewing the sealing cover 21, the valve clack 11 and the bypass valve are opened after screwing the sealing cover 21, and the pressure in the valve.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.A number of embodiments are therefore considered to be exemplary and not limiting, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

A gate valve with bypass is characterized by comprising a valve cover (2) arranged on the top of a valve body (1), an opening mechanism and a pressure relief mechanism;

the opening mechanism comprises a valve body (1), a valve cover (2), a top cover (3), a gear box (4), a -th gear (5), a -th face gear (6), a valve rod (7), a limiting shaft (8), a nut (9), a loop bar (10), a valve flap (11), a -th valve handle (12), a rotating rod (13), a rotary table (14), a second gear (15), a second face gear (16), a fixing plate (17) and a push rod (18), wherein the top pipe of the valve body (1) is fixedly connected with the valve cover (2) through a bolt in a sealing manner, the top end of the valve cover (2) is fixedly connected with the top cover (3), the top end of the top cover (3) is fixedly connected with the gear box (4), the inside of the gear box (4) is rotatably connected with a -th gear (5), the -th gear (5) is fixedly connected with the -th face gear (6) in a meshing manner, the -face gear (6) is fixedly connected with the top end of the valve rod (7), the middle of the valve rod (7) is fixedly connected with the limiting shaft (8), the bottom end of the valve rod (7) is fixedly connected with the nut (9), the second face gear (9) is fixedly connected with a screw thread of the second face gear (13), the end of the loop bar (11) is fixedly connected with the second gear (13), the end of the valve rod (11), the valve rod (11) is fixedly connected with the end of the valve rod (11), the rotary table (11), the valve rod (11) is fixedly connected with the end of the gear (11), the valve rod (11) and the end of the gear (11) is fixedly connected with the end of the valve rod (11), the valve;

pressure release mechanism includes valve body (1), connecting pipe (19), bypass valve (20), sealed lid (21), second valve handle (22) and dead lever (23), valve body (1) lateral wall and connecting pipe (19) intercommunication, communicate with bypass valve (20) between connecting pipe (19), just connecting pipe (19) top and sealed lid (21) threaded connection, bypass valve (20) top is rotated with second valve handle (22) and is connected, just second valve handle (22) top and dead lever (23) fixed connection.
2. gate valve with bypass according to claim 1, wherein the gear (5) and the valve handle (12) are respectively located at both sides of the gear box (4), and the gear (5) and the valve handle (12) are fixedly connected through a rotating shaft.
3. gate valve with bypass according to claim 1, wherein the valve rod (7) extends through the gear box (4), the top cover (3) and the valve cover (2) and to the inside of the loop rod (10), and the valve flap (11) of the side wall of the loop rod (10) is connected with the inside of the valve body (1) in a sliding way.
4. gate valve with bypass according to claim 1, wherein the number of the connecting pipes (19) is two, the ends of the two connecting pipes (19) are respectively located at both sides of the valve flap (11), and both the two connecting pipes (19) are connected with the sealing cover (21) in a sealing and threaded manner.
5. gate valve with bypass according to claim 1, wherein the rotary disk (14) and the second gear (15) are both rotatably connected with the side wall of the valve cover (2), and the edge of the rotary disk (14) is rotatably connected with the end of the rotary rod (13).
6. The gate valve with bypass according to claim 1, wherein the number of the fixing rods (23) is two, the two fixing rods (23) are respectively fixedly connected with two sides of the top end of the second valve handle (22), and two ends of the push rod (18) are respectively contacted between the two fixing rods (23).