CN212672438U

CN212672438U - Fire-fighting gate valve with protective structure

Info

Publication number: CN212672438U
Application number: CN202021521485.6U
Authority: CN
Inventors: 吴冬梅
Original assignee: Keda Valve Technology Co ltd
Current assignee: Keda Valve Technology Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-03-09
Anticipated expiration: 2030-07-28

Abstract

The utility model relates to a gate valve equipment technical field, a fire control gate valve with protective structure, which comprises a valve body, the rivers passageway has in the valve body, the valve body upper end is equipped with the valve gap, presses cap and sealing member, be equipped with the valve rod in the valve body, the valve rod passes the valve gap press the cap with the sealing member, the valve rod top is equipped with the hand wheel, and the bottom is equipped with the valve plate, the valve rod with the valve plate sets up with this rivers passageway is perpendicular, and this rivers passageway is located the valve plate both ends are intake end and play water end respectively, the valve body is located be equipped with the extension groove on the inner wall of intake end one side, be equipped with buffer board and elastic component in the extension groove, the buffer board slope sets up, the elastic component both ends respectively with the buffer board with the. An object of the utility model is to provide a fire control gate valve with protective structure solves current gate valve and does not dispose the problem that corresponding structure is used for eliminating the water hammer and strikes.

Description

Fire-fighting gate valve with protective structure

Technical Field

The utility model relates to a gate valve equipment technical field especially relates to a fire control gate valve with protective structure.

Background

The gate valve is a shutter, the movement direction of the shutter is vertical to the fluid direction, the gate valve can only be fully opened or fully closed, and cannot be adjusted and throttled. When the gate valve is opened and closed, a water hammer phenomenon often occurs, wherein the water hammer is a phenomenon that in a closed pipeline system, large pressure fluctuation is caused and vibration is caused due to rapid change of fluid flow, and the instantaneous pressure can greatly exceed the normal pressure, so that destructive influence can be caused.

The existing gate valve is relatively simple in structure, and does not have a corresponding structure to eliminate water hammer impact caused by various reasons in a pipeline, and impact waves of the existing gate valve often have more or less influence on a valve body, so that potential safety hazards exist, and the sealing performance and the service life of the gate valve are seriously influenced.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a fire control gate valve with protective structure solves current gate valve and does not dispose the problem that corresponding structure is used for eliminating the water hammer and assaults.

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

a fire-fighting gate valve with a protection structure comprises a valve body, wherein a water flow channel is arranged in the valve body, a valve cover is arranged at the upper end of the valve body, a pressing cap is arranged at the top of the valve cover, a sealing element is arranged at the top of the pressing cap, a valve rod is arranged in the valve body and penetrates through the valve cover, the pressing cap and the sealing element, the valve rod is connected with the pressing cap through a threaded structure and can be lifted through rotation, a hand wheel is arranged at the top of the valve rod, a valve plate is arranged at the bottom of the valve rod, the valve rod and the valve plate are arranged perpendicular to the water flow channel, the water flow channel is positioned at two ends of the valve plate and is respectively provided with a water inlet end and a water outlet end, an extension groove is arranged on the inner wall of one side of the water inlet end of the valve body, a buffer plate and an elastic element, the two ends of the elastic piece are respectively connected with the buffer plate and the valve body.

Preferably, the elastic component includes the body of rod, the cover body and spring, body of rod one end with buffer board fixed connection, the other end inserts set internal setting in, cover body one end is the opening, the other end set firmly in on the valve body inside wall, the spring is located the body of rod with between the cover body.

Preferably, one end of the rod body inserted into the sleeve body is provided with a baffle plate, and the baffle plate is used for preventing the rod body from falling off and clamping the spring.

Preferably, a pivot part is arranged on the buffer plate, and the rod body is rotatably connected with the pivot part.

Preferably, the buffer plate is of an inclined ring structure, and the elastic pieces are uniformly distributed on the back of the buffer plate.

Preferably, the buffer plate is of an inclined plane arc segment structure and is arranged in the extension groove in a surrounding mode.

Advantageous effects

Compared with the prior art, the utility model discloses at least, including following advantage:

the utility model arranges the extension groove in the valve body and the buffer board and the elastic piece in the extension groove, so that the water hammer shock wave is buffered and eliminated before impacting the valve body, thereby being beneficial to protecting the safety of the valve body structure, reducing the damage of the water hammer impact on the valve body, and being beneficial to improving the stability of the equipment and prolonging the service life; the utility model arranges an extension groove with a certain gradient in the valve body, which can guide the water hammer shock wave to the buffer board; the inclined arrangement of the buffer plate of the utility model is helpful for the decomposition and weakening of the pressure caused by the water hammer shock wave in the longitudinal and transverse directions, thereby greatly reducing the pressure influence caused by the shock wave; the utility model discloses in buffer board back equipartition elastic component, the elastic component passes through the body of rod, the cover body and mutually supporting of spring, plays the effect of buffering transition pressure, reaches the influence of eliminating the water hammer impact to effectually protect valve body and valve plate.

Drawings

Fig. 1 is a schematic structural view of a fire gate valve according to an embodiment.

Fig. 2 is an enlarged view of a partial view a in fig. 1.

Fig. 3 is a schematic view of the overall structure of the buffer plate of fig. 2.

Fig. 4 is a schematic view showing a connection structure of the buffer plate and the elastic member in another embodiment.

The figure is marked with: 1-a valve body; 11-water inlet end; 12-water outlet end; 13-an extension slot; 2-valve cover; 3, pressing a cap; 4-a seal; 5-valve stem; 6-hand wheel; 7-a valve plate; 8-a buffer plate; 81-a pivot; 9-an elastic member; 91-a rod body; 911-a baffle plate; 92-a sleeve body; 93-spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following detailed description is made with reference to the accompanying drawings and specific embodiments. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many other forms than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the two elements or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, the fire-fighting gate valve with a protection structure disclosed in this embodiment includes a valve body 1, a water flow channel is provided in the valve body 1, a valve cover 2 is provided at an upper end of the valve body 1, a pressing cap 3 is provided at a top of the valve cover 2, a sealing member 4 is provided at a top of the pressing cap 3, a valve rod 5 is provided in the valve body 1, the valve rod 5 passes through the valve cover 2, the pressing cap 3 and the sealing member 4, the valve rod 5 is connected with the pressing cap 3 through a threaded structure and can be lifted and lowered through rotation, a hand wheel 6 is provided at a top of the valve rod 5, the lifting operation of the valve rod 5 is controlled by rotating the hand wheel 6, a valve plate 7 is provided at a bottom, the valve plate 7 can be moved upwards into the valve cover 2 by the valve rod 5 to be stored, at this time, the water flow channel is in an open state, the valve, this rivers passageway is located 7 both ends of valve plate are intake end 11 and play water end 12 respectively, valve body 1 is located be equipped with extending groove 13 on the inner wall of intake end 11 one side, extending groove 13 is located and is equipped with the slope structure near water inflow direction one side for guide water hammer shock wave is past guide in the extending groove 13, be equipped with buffer board 8 and elastic component 9 in the extending groove 13, the slope of buffer board 8 sets up, and its openly orientation water inflow direction, elastic component 9 is located the 8 backs of buffer board, the elastic component 9 both ends respectively with buffer board 8 with valve body 1 is connected.

Further, the elastic component 9 includes the body of rod 91, the cover body 92 and spring 93, body of rod 91 one end with 8 fixed connection of buffer board, the other end inserts set up in the body 92, cover body 92 one end is the opening, the other end set firmly in on the 1 inside wall of valve body, spring 93 locates body of rod 91 with between the cover body 92, mainly play buffering cushioning effect.

Further, the body of rod 91 inserts cover 92 one end is equipped with baffle 911, baffle 911 is used for preventing the body of rod 91 is followed drop in the cover 92 to and be used for the card to establish spring 93, spring 93 is because self characteristic, remains throughout right the body of rod 91 plays the supporting role, makes the body of rod 91 with cover 92 remains throughout and keeps away from the removal trend each other.

In other embodiments, the buffer plate 8 may further include a pivot portion 81, and the rod 91 is rotatably connected to the pivot portion 81, so as to facilitate flexible angle adjustment to eliminate the impact of water hammer impact when different water hammer impact waves are received.

In this embodiment, as shown in fig. 3, the buffer plate 8 is a bevel ring structure, and the elastic members 9 are uniformly distributed on the back of the buffer plate, so as to help to uniformly disperse the pressure.

In other embodiments, the buffer plate 8 is a slope arc segment structure, and is disposed around the extension groove 13, which facilitates installation.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A fire-fighting gate valve with a protection structure comprises a valve body and is characterized in that a water flow channel is arranged in the valve body, a valve cover is arranged at the upper end of the valve body, a pressing cap is arranged at the top of the valve cover, a sealing element is arranged at the top of the pressing cap, a valve rod is arranged in the valve body, the valve rod penetrates through the valve cover, the pressing cap and the sealing element, the valve rod is connected with the pressing cap through a threaded structure and can be lifted through rotation, a hand wheel is arranged at the top of the valve rod, a valve plate is arranged at the bottom of the valve rod, the valve rod and the valve plate are vertically arranged with the water flow channel, the water flow channel is arranged at two ends of the valve plate and is respectively provided with a water inlet end and a water outlet end, an extension groove is arranged on the inner wall of one side of the water inlet end of the valve body, a buffer plate and an, the two ends of the elastic piece are respectively connected with the buffer plate and the valve body.

2. The fire-fighting gate valve with the protection structure as claimed in claim 1, wherein the elastic member includes a rod, a sleeve and a spring, one end of the rod is fixedly connected to the buffer board, the other end of the rod is inserted into the sleeve, one end of the sleeve is open, the other end of the sleeve is fixed on the inner sidewall of the valve, and the spring is disposed between the rod and the sleeve.

3. The fire-fighting gate valve with the protection structure as claimed in claim 2, wherein a stop is provided at an end of the rod inserted into the sheath, the stop being used to prevent the rod from falling off and to clamp the spring.

4. A fire gate valve with protective structure as defined in claim 2, wherein said buffer plate is provided with a pivot portion, and said rod body is rotatably connected to said pivot portion.

5. The fire gate valve with the protection structure as claimed in claim 1, wherein the cushion plate is a bevel ring structure, and the elastic members are uniformly distributed on the back of the cushion plate.

6. The fire gate valve with the protective structure as claimed in claim 1, wherein the buffer plate is a bevel arc segment structure and is circumferentially disposed in the extension groove.