CN214500091U - Groove type signal gate valve - Google Patents

Abstract

The utility model discloses a groove type signal gate valve, belonging to the valve field, comprising a gate plate, a valve rod, a valve body, a valve cover and a sealing gland which are fixed in sequence from bottom to top, wherein the valve body is provided with a water inlet end and a water outlet end, and the gate plate is positioned between the water inlet end and the water outlet end in the valve body; one end of the valve rod sequentially extends into the valve body through the sealing gland and the valve cover, and is in threaded connection with a valve rod nut which is fixedly connected with the flashboard; needle valves are respectively arranged on the valve bodies of the water inlet end and the water outlet end, and the needle valves at the two ends are communicated through a pipeline; the outer circular surfaces of the valve body at the water inlet end and the water outlet end are respectively provided with a groove. The water flow at the two ends of the inlet water and the outlet water is controlled by adjusting the two needle valves, the pipeline balance can be adjusted, the pressure stability and the pressure balance behind the pipe following in front of the pipe are ensured, the water hammer, the water pipe vibration and the pipeline burst are prevented, and the installation is convenient.

Description

Groove type signal gate valve

Technical Field

The utility model belongs to the valve field, concretely relates to slot type signal gate valve.

Background

The opening and closing part of the signal gate valve is a gate plate, the movement direction of the gate plate is vertical to the fluid direction, and the signal gate valve can be used for controlling the flow of various fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The valve rod nut in the gate valve is arranged on the gate plate, the hand wheel rotates to drive the valve rod to rotate, the gate plate is lifted, the rotary motion of the valve rod is changed into the linear motion of the valve rod nut and the gate plate through the thread matching valve rod nut at the lower end of the valve rod, namely, the operation torque is changed into the operation thrust, and therefore the gate plate is driven to be opened or closed.

However, the existing signal gate valve can only be opened or closed, and when the gate valve is opened, water supplement cannot be adjusted, the flow of water is controlled, the stability and the balance pressure cannot be achieved, and the water hammer phenomenon is easy to occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a slot type signal gate valve to solve the problem that current signal gate valve is difficult to the rivers at balanced valve both ends and the water hammer phenomenon easily appears.

For realizing the purpose of the utility model, the technical proposal adopted is that: a groove type signal gate valve comprises a gate plate, a valve rod, a valve body, a valve cover and a sealing gland which are sequentially fixed from bottom to top, wherein the valve body is provided with a water inlet end and a water outlet end, and the gate plate is positioned between the water inlet end and the water outlet end in the valve body; one end of the valve rod sequentially extends into the valve body through the sealing gland and the valve cover, and is in threaded connection with a valve rod nut which is fixedly connected with the flashboard; needle valves are respectively arranged on the valve bodies of the water inlet end and the water outlet end, and the needle valves at the two ends are communicated through a pipeline; the outer circular surfaces of the valve body at the water inlet end and the water outlet end are respectively provided with a groove.

As a further alternative, a junction box is fixed on the sealing gland, a transmission screw rod, a wiring terminal and a microswitch electrically connected with the wiring terminal are arranged in the junction box, and a cam stop block in contact with the microswitch is fixed on the transmission screw rod; the transmission lead screw extends out of the junction box and is fixed with a driven gear, and a driving gear meshed with the driven gear is fixed on the valve rod.

As a further alternative, a bracket is fixed on the sealing gland, and the junction box is fixed on the sealing gland through the bracket.

As a further alternative, the support is L-shaped, two sides of the L-shaped support are respectively provided with a long hole, and the long holes on the two sides are vertical to each other; the junction box and the sealing gland are respectively connected with the support bolt through the strip holes on the two sides of the support.

As a further alternative, a pipeline communicated between the needle valves at two ends is a copper pipe.

As a further alternative, the groove is annular.

The utility model has the advantages that: this slot type signal gate valve accessible is adjusted two needle valves and is controlled into the discharge at water and play water both ends, and then plays the balancing act, the water of simultaneously income water end can compensate play water end and play the cushioning effect, prevent water hammer phenomenon, not only realize opening or closing of valve, can also adjust the pipeline balance, guarantee the stable pressure behind the pipe-following before the pipe, balanced pressure, prevent water hammer, water pipe vibrations and pipeline burst, high durability and convenient installation, can use the installation of clamp spare through the slot.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings required for the description of the embodiments will be briefly introduced below, it should be understood that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a trench type signal gate valve according to an embodiment of the present invention;

FIG. 2 is a partial cross-sectional view of the needle valve employed in FIG. 1;

FIG. 3 is a schematic view of the internal structure of the junction box of FIG. 1;

FIG. 4 is a top view of the bracket of FIG. 1;

FIG. 5 is a left side view of the bracket of FIG. 1;

reference numerals: 1-valve body, 2-flashboard, 3-water inlet end, 4-water outlet end, 5-needle valve, 6-pipeline, 7-groove, 8-valve rod, 9-valve rod nut, 10-valve cover, 11-sealing gland, 12-junction box, 13-transmission screw rod, 14-wiring terminal, 15-microswitch, 16-cam block, 17-driving gear, 18-driven gear, 19-bracket and 20-elongated hole.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention. It is to be understood that the drawings are designed solely for the purposes of illustration and description and not as a definition of the limits of the invention. The connection relationships shown in the drawings are for clarity of description only and do not limit the manner of connection.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. 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.

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

Fig. 1 to 5 show a groove type signal gate valve provided by the present invention, which includes a gate plate 2, a valve rod 8, and a valve body 1, a valve cover 10 and a gland 11 fixed in sequence from bottom to top, wherein the valve body 1 has a water inlet end 3 and a water outlet end 4, and the gate plate 2 is located between the water inlet end 3 and the water outlet end 4 in the valve body 1; one end of the valve rod 8 sequentially extends into the valve body 1 through a sealing gland 11 and a valve cover 10, and is in threaded connection with a valve rod nut 9, and the valve rod nut 9 is fixedly connected with the flashboard 2; needle valves 5 are respectively arranged on the valve bodies 1 of the water inlet end 3 and the water outlet end 4, and the needle valves 5 at the two ends are communicated through a pipeline 6; the outer circular surfaces of the valve body 1 of the water inlet end 3 and the water outlet end 4 are respectively provided with a groove 7.

Namely, the valve body 1 of the water inlet end 3 is communicated with one end of one needle valve 5, the valve body 1 of the water outlet end 4 is communicated with one end of the other needle valve 5, the other ends of the two needle valves 5 are communicated with each other, and the two needle valves can be communicated with each other by adopting a copper pipe. The needle valve 5 is a purchased part, is a valve capable of being accurately adjusted, can adopt the needle valve 5 with scales, conveniently and visually adjusts the needle valve 5 through the scales, and controls the water flow at the two ends of the valve body 1.

The needle valves 5 are convenient to adjust, the water replenishing is adjusted through the communication of the needle valves 5 at two ends, the flow of water can be controlled through adjusting the opening degree of the needle valves 5, the pressure is balanced, the high stability is achieved, and the water hammer phenomenon is prevented. The groove 7 is annular, a clamp is convenient and quick to install, and installation and connection are quick and convenient.

A junction box 12 is fixed on the sealing gland 11, a transmission screw 13, a connection terminal 14 and a microswitch 15 electrically connected with the connection terminal 14 are arranged in the junction box 12, and a cam stop 16 in contact with the microswitch 15 is fixed on the transmission screw 13; the transmission screw rod extends out of the junction box 12 and is fixed with a driven gear 18, and a driving gear 17 meshed with the driven gear 18 is fixed on the valve rod 8. Flashboard 2 is the open state of full open when using, if the hand wheel at valve rod 8 top rotates in the use by accident, then through driving gear 17 and driven gear 18 and the transmission of transmission lead screw 13 and cam dog 16, make micro-gap switch 15 touched, at this moment the gate valve is not the open state entirely, binding post 14 in terminal box 12 is connected with the alarm system at backstage, alarm system just can report an alarm this moment, on-the-spot managers can the very first time discover which gate valve is not the open state, can in time handle elimination fire control hidden danger.

A support 19 is fixed on the sealing gland 11, and the junction box 12 is fixed on the sealing gland 11 through the support 19, so that the installation, the replacement and the maintenance are convenient. The specific bracket 19 can be L-shaped, two sides of the L-shape are respectively provided with a long hole 20, and the long holes 20 at the two sides are mutually vertical; the junction box 12 and the sealing gland 11 are respectively connected with the support 19 through the long holes 20 on two sides of the support 19 by bolts, and the long holes 20 vertical to two sides can be used for adjusting the support 19 relative to the sealing gland 11 in the front, back, left and right directions, so that the junction box 12 is convenient to be matched with valve bodies 1 with different calibers, and is more universal.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims (6)

1. The groove type signal gate valve is characterized by comprising a gate plate, a valve rod, a valve body, a valve cover and a sealing gland which are sequentially fixed from bottom to top, wherein the valve body is provided with a water inlet end and a water outlet end, and the gate plate is positioned between the water inlet end and the water outlet end in the valve body; one end of the valve rod sequentially extends into the valve body through the sealing gland and the valve cover, and is in threaded connection with a valve rod nut which is fixedly connected with the flashboard; needle valves are respectively arranged on the valve bodies of the water inlet end and the water outlet end, and the needle valves at the two ends are communicated through a pipeline; the outer circular surfaces of the valve body at the water inlet end and the water outlet end are respectively provided with a groove.

2. The trench type signal gate valve of claim 1, wherein a junction box is fixed on the sealing gland, a transmission screw rod, a connection terminal and a microswitch electrically connected with the connection terminal are arranged in the junction box, and a cam stop contacted with the microswitch is fixed on the transmission screw rod; the transmission lead screw extends out of the junction box and is fixed with a driven gear, and a driving gear meshed with the driven gear is fixed on the valve rod.

3. The trench gate signal gate valve of claim 2, wherein a bracket is fixed to the sealing gland, and the junction box is fixed to the sealing gland through the bracket.

4. The trench-type signal gate valve of claim 3, wherein the support is L-shaped, two sides of the L-shaped support are respectively provided with a long hole, and the long holes at the two sides are perpendicular to each other; the junction box and the sealing gland are respectively connected with the support bolt through the strip holes on the two sides of the support.

5. The gate valve of claim 1, wherein the conduit between the needle valves is a copper tube.

6. The trench signal gate valve of claim 1, wherein the trench is annular.

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