CN210978545U

CN210978545U - Traction straight-through deluge valve main valve

Info

Publication number: CN210978545U
Application number: CN201922051750.2U
Authority: CN
Inventors: 崔书生; 张立勇; 刘洪昌
Original assignee: Ningjin Meihua Ind Co ltd
Current assignee: Ningjin Meihua Ind Co ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-07-10
Anticipated expiration: 2029-11-25

Abstract

The utility model discloses a pull straight-through valve main valve that drenches, including valve body, valve gap, diaphragm, pull piston, diaphragm clamp plate, pull connecting rod, valve body connecting rod, valve plate connecting rod, rotatory lid and installation handhole door. The side of the valve body is provided with a piston guide part, the traction piston is arranged in the piston guide part in a sliding mode along the left-right direction, the valve cover is connected with the piston guide part through a flange, the diaphragm pressing plate is fixedly connected with the traction piston, the middle of the diaphragm is clamped between the diaphragm pressing plate and the traction piston, the edge of the diaphragm is clamped between the valve cover and the piston guide part, the side wall of the valve body and the valve cover are provided with threaded through holes, and when the traction piston slides along the piston guide part, the rotary cover body can be in contact with or separated from the inner sealing end face. Compared with the prior art, the utility model discloses a draw direct rain valve main valve and open the back at the valve plate and make the passageway that overflows and be close to the direct-through, reduced the stream and decreased.

Description

Traction straight-through deluge valve main valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to a draw straight-through valve main valve that drenches with rain for automatic sprinkler system's low stream decreases, workable, more reliable.

Background

A deluge valve is a control valve for automatically supplying water by controlling a fire-fighting water supply pipeline. The deluge valves on the market today are mainly of two types: one is a diaphragm type, the diaphragm plays a role in bearing and sealing, and the defects are that the flow loss is large, the manufacturing cost of the diaphragm is high, the difficulty is large, and the use pressure is limited; one is a lever type, and has the defects of only vertical installation, more accessories and high processing cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a draw direct rain valve main valve that drenches with low costs, long service life, easy maintenance, can be used to in the higher automatic sprinkler system of pressure.

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

the utility model discloses a traction straight-through deluge valve main valve, which comprises a valve body, a valve cover, a diaphragm, a traction piston, a diaphragm pressing plate, a traction connecting rod, a valve body connecting rod, a valve plate connecting rod, a rotary cover body and a mounting hole cover, wherein the valve body is vertically communicated to form an overflow channel, the lower part of the valve body is of a ladder-shaped structure and is provided with an internal sealing end surface, the side part of the valve body is provided with a piston guide part, the traction piston is arranged in the piston guide part in a sliding way along the left and right direction, the valve cover is connected with the piston guide part in a flange way, the diaphragm pressing plate is fixedly connected with the traction piston, the middle part of the diaphragm is clamped between the diaphragm pressing plate and the traction piston, the edge of the diaphragm is clamped between the valve cover and the piston guide part, the side wall of the valve body and the upper part, the mounting hole cover is fixed at the mounting hole in a sealing mode, the first end of the traction connecting rod, the first end of the valve body connecting rod and the first end of the valve plate connecting rod are connected in a rotating mode, the second end of the traction connecting rod is connected to one side, far away from the diaphragm, of the traction piston in a rotating mode, the second end of the valve body connecting rod is connected to the inner wall of the upper portion of the valve body in a rotating mode, the second end of the valve plate connecting rod is connected to the upper portion of the rotating cover body in a rotating mode, one end of the rotating cover body is connected to the inner wall of the lower portion of the valve body in a rotating mode, and when the traction piston slides along the piston guide portion.

Preferably, the rotary cover body comprises a valve plate, a sealing rubber plate and a valve plate pressing plate, the valve plate pressing plate is fixedly connected with the valve plate, the sealing rubber plate is clamped between the valve plate pressing plate and the valve plate, the sealing rubber plate is used for being in sealing contact with or separated from the inner sealing end face, and the valve plate is respectively in rotating connection with the inner wall of the lower portion of the valve body and the second end of the valve plate connecting rod.

Preferably, the middle part of the valve plate is provided with a first connecting part protruding upwards, one end of the valve plate is provided with a second connecting part protruding upwards, the first connecting part is rotatably connected with the second end of the valve plate connecting rod through a pin shaft, and the second connecting part is rotatably connected with the inner wall of the lower part of the valve body through a pin shaft.

Preferably, the lower surface of the valve plate is provided with a rubber plate groove, and the sealing rubber plate is embedded in the rubber plate groove.

Preferably, the first end of the traction connecting rod, the first end of the valve body connecting rod and the first end of the valve plate connecting rod are simultaneously penetrated through by a pin shaft to realize the rotating connection, the second end of the traction connecting rod is rotatably connected with one side of the traction piston, which is far away from the diaphragm, the second end of the valve body connecting rod is rotatably connected with the inner wall of the upper part of the valve body through a pin shaft, and the second end of the valve plate connecting rod is rotatably connected with the upper part of the rotary cover body through a pin shaft.

Preferably, the valve cover has a tapered inner wall, the cover opening diameter of the valve cover is larger than the cover bottom diameter of the valve cover, and the part of the valve body opposite to the valve cover is also tapered.

Preferably, a cover bottom of the valve cover is provided with a pressing plate groove for accommodating the diaphragm pressing plate.

Preferably, the threaded through hole in the valve cover is located at the center of the bottom of the pressing plate groove.

The utility model discloses for prior art gain following technological effect:

the utility model discloses a draw direct valve main valve that drenches makes the passageway of overflowing close to the direct-through after the valve plate is opened, has reduced the stream and has decreased. And the structure is relatively simple, the cost is low, the service life is long, the maintenance is convenient, and the automatic sprinkler can be used in an automatic sprinkler system with higher pressure.

Drawings

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

FIG. 1 is a schematic view of the structure of the direct pull deluge valve of the present embodiment with the main valve closed;

FIG. 2 is a schematic view of the structure of the pull-through deluge valve of this embodiment with the main valve open;

description of reference numerals: 1. a valve body; 2. a valve cover; 3. a diaphragm; 4. a traction piston; 5. a diaphragm pressing plate; 6. a traction link; 7. a valve body connecting rod; 8. a valve plate connecting rod; 9. a valve plate; 10. sealing the rubber plate; 11. a valve plate pressure plate; 12. a pin shaft; 13. installing a hole cover; 14. a threaded through hole; 15. and (4) screws.

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.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1-2, the present embodiment provides a main valve of a pull-through deluge valve, which includes a valve body 1, a valve cover 2, a diaphragm 3, a pull piston 4, a diaphragm pressing plate 5, a pull connecting rod 6, a valve body connecting rod 7, a valve plate connecting rod 8, a rotary cover body, and a mounting hole cover 13.

The valve body 1 is vertically communicated to form an overflowing channel which can be opened and closed. The side of the valve body 1 is provided with a piston guide part, and the traction piston 4 is arranged in the piston guide part in a sliding manner along the left-right direction. The valve cover 2 is connected with a piston guide part through a flange, the diaphragm pressing plate 5 is fixedly connected with the traction piston 4, the middle part of the diaphragm 3 is clamped between the diaphragm pressing plate 5 and the traction piston 4, and the edge of the diaphragm 3 is clamped between the valve cover 2 and the piston guide part. A control cavity is formed between the diaphragm 3 and the valve cover 2, and threaded through holes 14 are formed on the side wall of the valve body 1 and the valve cover 2. The side of the valve body 1 is also provided with a mounting hole, and the mounting hole cover 13 is hermetically fixed at the mounting hole. The first end of the traction connecting rod 6, the first end of the valve body connecting rod 7 and the first end of the valve plate connecting rod and valve plate connecting rod 8 are rotatably connected, the second end of the traction connecting rod 6 is rotatably connected to one side of the traction piston 4, which is far away from the diaphragm 3, the second end of the valve body connecting rod 7 is rotatably connected to the inner wall of the upper portion of the valve body 1, the second end of the valve plate connecting rod and valve plate connecting rod 8 is rotatably connected to the upper portion of the rotary cover body, and one end of the rotary cover body is rotatably connected to. The lower part of the valve body 1 is of a step-shaped structure and is provided with an internal sealing end face, and when the traction piston 4 slides along the piston guide part, the rotary cover body can be in contact with or separated from the internal sealing end face, so that the closing or opening of the overflowing channel is realized. The cavity in the valve body 1, which is positioned at the upper part of the rotary cover body, is an upper cavity, and the cavity at the lower part of the rotary cover body is a lower cavity.

The main valve of the traction straight-through deluge valve has the following working principle: when liquid enters the control cavity from the threaded through hole 14 on the valve cover 2, the pressure in the control cavity is gradually increased, the diaphragm 3 is pushed to drive the traction piston 4 to move after the pressure is increased to a certain value, the rotary cover body is clockwise rotated around the left end of the rotary cover body through the traction connecting rod 6, the valve body connecting rod 7 and the valve plate connecting rod 8, and therefore the rotary cover body and the inner sealing end face of the valve body 1 are in contact sealing. When the pressure in the control cavity is reduced to a certain value, the liquid pressure in the lower cavity pushes the rotary cover body to rotate anticlockwise around the left end of the rotary cover body, so that the rotary cover body is separated from the inner sealing end face of the valve body 1, the overflowing channel is close to straight-through, and the flow loss is reduced.

The specific structure of the rotary cover body can be selected by those skilled in the art according to actual needs, as long as the rotary cover body can be in contact with and sealed with the inner sealing end surface of the valve body 1. In this embodiment, the rotary cover body includes a valve plate 9, a sealing rubber plate 10 and a valve plate pressing plate 11, the valve plate pressing plate 11 is fixedly connected with the valve plate 9, the sealing rubber plate 10 is clamped between the valve plate pressing plate 11 and the valve plate 9, and the valve plate 9 is rotatably connected with the lower inner wall of the valve body 1 and the second end of the valve plate connecting rod 8. The sealing rubber plate 10 has better sealing performance and is used for being in sealing contact with or separated from the inner sealing end face.

For the convenience of connection, this embodiment is equipped with the convex first connecting portion that makes progress in the middle part of valve plate 9, and the one end of valve plate 9 is equipped with the convex second connecting portion that makes progress, and first connecting portion rotate with the second end of valve plate connecting rod 8 through round pin axle 12 and are connected, and the second connecting portion rotate with the lower part inner wall of valve body 1 through round pin axle 12 and be connected.

In order to prevent the sealing rubber plate 10 from sliding, a rubber plate groove is formed in the lower surface of the valve plate 9, and the sealing rubber plate 10 is embedded in the rubber plate groove.

The mode of rotating the connection has the multiple, in this embodiment, the first end of traction connecting rod 6, the first end of valve body connecting rod 7 and the first end of valve plate connecting rod 8 are run through by a round pin 12 simultaneously, realize rotating the connection, the second end of traction connecting rod 6 rotates through a round pin 12 and connects in the one side of keeping away from diaphragm 3 of traction piston 4, the second end of valve body connecting rod 7 rotates through a round pin 12 and connects on the upper portion inner wall of valve body 1, the second end of valve plate connecting rod 8 rotates through a round pin 12 and connects in the upper portion of rotatory lid.

When the piston 4 is pulled to move left and right, in order to prevent the diaphragm 3 from being damaged due to frequent friction with the bonnet 2 and the piston guide part, the inner wall of the bonnet 2 is tapered, the cover opening diameter of the bonnet 2 is larger than the cover bottom diameter of the bonnet 2, and the part of the valve body 1 opposite to the bonnet 2 is also tapered, so that the connecting part of the bonnet 2 and the piston guide part is expanded outwards to accommodate the diaphragm 3, and the diaphragm 3 is prevented from being damaged due to excessive extrusion.

Further, the cover bottom of valve cover 2 in this embodiment is provided with a pressing plate groove for accommodating diaphragm pressing plate 5, and threaded through hole 14 on valve cover 2 is located at the bottom center position of the pressing plate groove. The valve cover 2 and the piston guide part, the valve plate pressing plate 11 and the valve plate 9, and the mounting hole cover 13 and the valve body 1 are fixedly connected through screws 15.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. A main valve of a traction straight-through deluge valve is characterized by comprising a valve body, a valve cover, a diaphragm, a traction piston, a diaphragm pressing plate, a traction connecting rod, a valve body connecting rod, a valve plate connecting rod, a rotary cover body and a mounting hole cover, wherein the valve body is vertically communicated to form an overflowing channel, the lower part of the valve body is of a step-shaped structure and is provided with an internal sealing end surface, the side part of the valve body is provided with a piston guide part, the traction piston is arranged in the piston guide part in a sliding mode along the left-right direction, the valve cover is connected with the piston guide part in a flange mode, the diaphragm pressing plate is fixedly connected with the traction piston, the middle part of the diaphragm is clamped between the diaphragm pressing plate and the traction piston, the edge of the diaphragm is clamped between the valve cover and the piston guide part, the side wall of the valve body and the valve cover, the mounting hole cover is fixed at the mounting hole in a sealing mode, the first end of the traction connecting rod, the first end of the valve body connecting rod and the first end of the valve plate connecting rod are connected in a rotating mode, the second end of the traction connecting rod is connected to one side, far away from the diaphragm, of the traction piston in a rotating mode, the second end of the valve body connecting rod is connected to the inner wall of the upper portion of the valve body in a rotating mode, the second end of the valve plate connecting rod is connected to the upper portion of the rotating cover body in a rotating mode, one end of the rotating cover body is connected to the inner wall of the lower portion of the valve body in a rotating mode, and when the traction piston slides along the piston guide portion.

2. The main valve of a traction straight-through deluge valve as claimed in claim 1, wherein said rotary cap includes a valve plate, a sealing rubber plate and a valve plate pressure plate, said valve plate pressure plate is fixedly connected to said valve plate, said sealing rubber plate is clamped between said valve plate pressure plate and said valve plate, said sealing rubber plate is configured to be in sealing contact with or separated from said inner sealing end face, and said valve plate is rotatably connected to a lower inner wall of said valve body and a second end of said valve plate connecting rod, respectively.

3. The main valve of a traction direct-through deluge valve according to claim 2, wherein the valve plate has a first connecting portion protruding upward at a middle portion thereof, and a second connecting portion protruding upward at one end thereof, the first connecting portion being rotatably connected to the second end of the valve plate link by a pin, and the second connecting portion being rotatably connected to the lower inner wall of the valve body by a pin.

4. The traction straight through deluge valve main valve of claim 3, wherein the lower surface of the valve plate has a rubber plate groove, the packing rubber plate being embedded in the rubber plate groove.

5. The main valve of a traction straight-through deluge valve as claimed in claim 1, wherein the first end of the traction link, the first end of the valve body link, and the first end of the valve plate link are simultaneously penetrated by a pin to achieve rotational connection, the second end of the traction link is rotationally connected to the side of the traction piston away from the diaphragm through a pin, the second end of the valve body link is rotationally connected to the inner wall of the upper portion of the valve body through a pin, and the second end of the valve plate link is rotationally connected to the upper portion of the rotary cover through a pin.

6. The pull-through deluge valve main valve as in claim 1, wherein the valve cap has a tapered inner wall, the cap opening diameter of the valve cap is greater than the cap base diameter of the valve cap, and the portion of the valve body opposite the valve cap is also tapered.

7. The pull-through deluge valve main valve of claim 1, wherein the cover bottom of the valve cover is provided with a pressure plate recess for receiving the diaphragm pressure plate.

8. The pull-through deluge valve main valve of claim 7, wherein the threaded through-hole in the valve cover is centrally located at the bottom of the pressure plate groove.