CN216143214U

CN216143214U - Water-saving irrigation valve

Info

Publication number: CN216143214U
Application number: CN202121903450.3U
Authority: CN
Inventors: 张邦均; 张鑫; 李斌; 封文洁
Original assignee: Chongqing Qijiang District Water Resources Bureau
Current assignee: Chongqing Qijiang District Water Resources Bureau
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2022-03-29
Anticipated expiration: 2031-08-13

Abstract

The utility model relates to the field of valves, in particular to a water-saving irrigation valve which comprises a valve body, a valve core and a valve rod, wherein a water inlet and a water outlet are formed in the valve body, the valve core is connected in the valve body in a sliding manner, one end of the valve rod is positioned in the valve body and is rotationally connected to the valve core, the valve rod is in threaded connection with the valve body, the other end of the valve rod is positioned on the outer side of the valve body and is provided with a rotating handle, the valve core comprises a first fixing plate, a second fixing plate and a fixing block, the first fixing plate and the second fixing plate are respectively and fixedly connected to two sides of the fixing block, an elastic sealing block is arranged between the first fixing plate and the second fixing plate, and the side surface of the sealing block is attached to the inner wall of the valve body; an air cavity is arranged between the sealing block and the fixing block; the top of the valve body is provided with an air cylinder, the air cylinder is connected with a piston in a sliding way, the piston is fixedly connected with a piston rod, and an air pipe is connected between the air cylinder and the air cavity. The scheme solves the problem of water resource waste caused by water leakage and water dripping of the irrigation valve.

Description

Water-saving irrigation valve

Technical Field

The utility model relates to the field of valves, in particular to a water-saving irrigation valve.

Background

Present irrigation valve includes valve body, case and valve rod, and the case is located the inside of valve body, and valve rod threaded connection is on the valve body, and through twisting the valve rod, the valve rod drives the case and removes to the switching of control valve body.

Along with the continuous use of irrigation valve, case round trip movement in the valve body, the case can be worn and torn, therefore the leakproofness of case will worsen, and when irrigation valve was in the closed condition, irrigation valve still can appear leaking, the condition of dripping like this to the waste of water resource has been caused. Or when the water pressure is too high, even if the abrasion degree of the valve core is small, the valve core can not play a good sealing role under the condition of large water pressure, so that the conditions of water leakage and water dripping occur, and the waste of water resources is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a water-saving irrigation valve to solve the problem of water resource waste caused by water leakage and water dripping of the irrigation valve.

In order to achieve the purpose, the utility model adopts the following technical scheme: a water-saving irrigation valve comprises a valve body, a valve core and a valve rod, wherein a water inlet and a water outlet are formed in the valve body, the valve core is connected in the valve body in a sliding mode, one end of the valve rod is located in the valve body and is connected to the valve core in a rotating mode, the valve rod is connected with the valve body in a threaded mode, the other end of the valve rod is located on the outer side of the valve body and is provided with a rotating handle, the valve core comprises a first fixing plate, a second fixing plate and a fixing block, the first fixing plate and the second fixing plate are fixedly connected to the two sides of the fixing block respectively, an elastic sealing block is arranged between the first fixing plate and the second fixing plate, and the side face of the sealing block is attached to the inner wall of the valve body; an air cavity is arranged between the sealing block and the fixing block; the top of the valve body is provided with an air cylinder, the air cylinder is connected with a piston in a sliding way, the piston is fixedly connected with a piston rod, and an air pipe is connected between the air cylinder and the air cavity.

The principle and the advantages of the scheme are as follows: this scheme rotates through rotating the handle, rotates the handle and drives the valve rod and rotate, because valve rod and valve body threaded connection, consequently valve rod and valve body have constituted the lead screw pair, and when the valve rod rotated, the valve rod vertical movement, the valve rod drove the vertical removal of case, and the case is opened the delivery port or is stopped up to the switching of control irrigation valve. First fixed plate and second fixed plate are fixed on the fixed block, and first fixed plate and second fixed plate are located the both sides of sealed piece respectively, and first fixed plate and second fixed plate can protect sealed piece like this to avoid sealed piece directly to receive the impact of the water inlet in the valve body and influence the life-span of sealed piece, be favorable to improving the life of sealed piece, and then be favorable to avoiding sealed piece to damage and leak, be favorable to the water conservation.

When the valve core blocks the water outlet, the piston rod is pushed at the moment, the piston rod pushes the piston, the piston moves in the air cylinder, air in the air cylinder enters the air cavity through the air pipe, the air pressure in the air cavity is increased, the sealing block expands outwards under the action of the air pressure due to the elasticity of the sealing block, the valve body is filled with the sealing block, and therefore water leakage caused by the fact that a gap exists between the sealing block and the inner wall of the valve body due to abrasion of the sealing block can be avoided, and the purpose of saving water is achieved.

Preferably, as an improvement, the inflator is transversely placed, a piston plate is fixedly connected to the piston rod, an insertion rod is fixedly connected to the piston plate, a transverse insertion hole is formed in the position, located on the outer side of the valve body, of the valve rod, the insertion rod can be inserted into the insertion hole, a clamping hole is formed in the insertion rod, and a clamping pin penetrates through the clamping hole. Therefore, after the valve core plugs the water outlet, the insertion hole is opposite to the insertion rod, the piston plate is pushed, the piston plate drives the insertion rod to be inserted into the insertion hole, then the bayonet lock is inserted into the clamping hole, the bayonet lock is abutted to the valve rod, the insertion rod can be prevented from being automatically drawn out from the insertion hole, the piston rod is locked, the piston rod is prevented from being reset, gas in the air cavity is prevented from being drawn out by the air cylinder, and the expansion state of the sealing block can be maintained for a long time. In addition, the inserted link inserts in the jack to realized pinning the valve rod, avoided the valve rod mistake to rotate and make the water outlet mistake open.

Preferably, as an improvement, the air pipe is provided with a telescopic part, and the telescopic part is positioned between the top of the valve core and the top of the valve body. Therefore, the telescopic part can be stretched, so that the telescopic part can be automatically stretched in the moving process of the valve core, the air pipe can adapt to the movement of the valve core, and the air pipe cannot limit the movement of the valve core.

Preferably, as an improvement, a bearing is connected between the bottom end of the valve rod and the fixing block. From this, the rotation that has realized fixed block and valve rod bottom through setting up of bearing is connected.

Preferably, as an improvement, a limiting block is fixedly arranged in the air cavity and abuts against the sealing block. Therefore, the limit block can limit the sealing block, the sealing block is prevented from contracting in the direction of keeping away from the inner wall of the valve body, and the sealing block and the inner wall of the valve body can be attached to each other.

Preferably, as an improvement, a valve rod seat is fixedly connected to the top of the valve body, the valve rod penetrates through the valve rod seat, and the valve rod is in threaded connection with the valve rod seat. Therefore, the valve rod seat is arranged, and the threaded connection of the valve rod and the valve body is realized.

Preferably, as an improvement, sealing gaskets are arranged between the fixing block and the first fixing plate and between the fixing block and the second fixing plate. The sealing gaskets are arranged to improve the air tightness of the connection between the fixing block and the first fixing plate and between the fixing block and the second fixing plate.

Preferably, as an improvement, a sealing ring is provided between the stem seat and the top of the valve body. The sealing ring is used for improving the sealing performance between the valve rod seat and the valve body, and is convenient for sealing connection between the valve rod seat and the valve body.

Drawings

Fig. 1 is a front sectional view of a water saving irrigation valve.

Fig. 2 is a top view of the twist grip of fig. 1.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the valve comprises a valve body 1, a water outlet 2, a rotating handle 3, a valve rod 4, an inserting hole 5, a bayonet 6, an inserting rod 7, a piston plate 8, an air cylinder 9, a piston rod 10, an air pipe 11, a telescopic part 12, a first fixing plate 13, a sealing block 14, a second fixing plate 15, a limiting block 16, an air cavity 17, a fixing block 18, a bearing 19 and a valve rod seat 20.

The embodiment is basically as shown in the attached figures 1-2: the utility model provides a water-saving irrigation valve, includes valve body 1, case and valve rod 4, is equipped with the water inlet on the bottom of valve body 1, is equipped with delivery port 2 on the right flank of valve body 1. The valve core is vertically and slidably connected in the valve body 1, the valve core in the embodiment comprises a first fixing plate 13, a second fixing plate 15 and a fixing block 18, the first fixing plate 13 and the second fixing plate 15 are both circular, the first fixing plate 13 and the second fixing plate 15 are respectively and fixedly connected to the upper side and the lower side of the fixing block 18, a screw is fixedly connected between the top of the first fixing block 18 and the top of the fixing block 18, and a screw is fixedly connected between the bottom of the second fixing plate 15 and the bottom of the fixing block 18. Sealing gaskets are arranged between the fixing block 18 and the first fixing plate 13 and between the fixing block 18 and the second fixing plate 15.

Be equipped with between first fixed plate 13 and the second fixed plate 15 and have elastic sealed piece 14, sealed piece 14 is the rubber material, and sealed piece 14 is the annular, all fixes stopper 16 through the screw on first fixed plate 13 and the second fixed plate 15, and stopper 16 is located between first fixed plate 13 and the second fixed plate 15, and sealed piece 14 overlaps in stopper 16's the outside, and the side of sealed piece 14 pastes mutually with the inner wall of valve body 1. Screws are fixed between the top of the sealing block 14 and the first fixing plate 13, screws are fixed between the bottom of the sealing block 14 and the second fixing plate 15, and an annular air chamber 17 is formed between the sealing block 14 and the fixing block 18.

A valve rod seat 20 is fixed on the top of the valve body 1 through bolts, and a sealing ring is arranged between the valve rod seat 20 and the top of the valve body 1. The bottom end of the valve rod 4 is positioned in the valve body 1 and is rotatably connected to the top end of a fixed block 18 of the valve core, and specifically, a bearing 19 is connected between the bottom end of the valve rod 4 and the top end of the fixed block 18. Valve rod 4 and the valve rod seat 20 threaded connection on the valve body 1 top, the top of valve rod 4 is located the outside of valve body 1 and installs and rotate handle 3, rotates handle 3 and as shown in fig. 2, is equipped with three sectorial through-holes on rotating handle 3, and the through-hole can make the hand pass.

The gas cylinder 9 transversely arranged is mounted on the top of the valve body 1 through a bolt, a piston is transversely connected in the gas cylinder 9 in a sealing and sliding manner, a piston rod 10 is fixedly connected onto the piston through a screw, the piston rod 10 is located on the right side of the gas cylinder 9, a gas pipe 11 is connected between the gas cylinder 9 and a gas cavity 17, a telescopic part 12 located between the upper portion of a first fixing plate 13 and the top of the valve body 1 is arranged on the gas pipe 11, and the telescopic part 12 can be of a corrugated pipe structure in the embodiment, so that the gas pipe 11 has a telescopic function. The piston rod 10 is provided with a piston plate 8 at the upper right end thereof, the piston plate 8 is provided with a transverse inserted rod 7 thereon, the valve rod 4 is arranged at the position outside the valve body 1 and is provided with a transverse jack 5, the inserted rod 7 can be inserted into the jack 5, the inserted rod 7 is provided with a vertical clamping hole, and a clamping pin 6 is penetrated in the clamping hole.

The specific implementation process is as follows: this scheme is through rotating turning handle 3, and turning handle 3 drives valve rod 4 and rotates, because

valve rod

4 and 1 threaded connection of valve body, consequently valve rod 4 and valve body 1 have constituted the lead screw pair, and when valve rod 4 rotated on fixed block 18, the vertical removal of valve rod 4, valve rod 4 drive the vertical removal of case, and sealed piece 14 on the case is opened delivery port 2 or is stopped up to the switching of control irrigation valve. First fixed plate 13 and second fixed plate 15 are fixed on fixed block 18, first fixed plate 13 and second fixed plate 15 are located sealed 14 both sides respectively, first fixed plate 13 and second fixed plate 15 can protect sealed 14 like this, thereby avoid sealed 14 direct impact that receives water and influence sealed 14 life-span, be favorable to improving sealed 14 life, and then be favorable to avoiding sealed 14 to receive the impact damage of water and leak, be favorable to the water conservation.

When the valve core blocks the water outlet 2, the piston rod 10 is pushed leftwards through the piston plate 8 at the moment, the piston rod 10 pushes the piston, the piston moves in the air cylinder 9, the air in the air cylinder 9 enters the air cavity 17 through the air pipe 11, the air pressure in the air cavity 17 is increased, the sealing block 14 has elasticity, so the sealing block 14 expands outwards under the action of the air pressure, the sealing block 14 is filled with the valve body 1, the water leakage caused by the gap between the sealing block 14 and the inner wall of the valve body 1 due to the abrasion of the sealing block 14 can be avoided, and the purpose of saving water is achieved.

Meanwhile, when the valve core blocks the water outlet 2, the inserting hole 5 and the inserting rod 7 are in a relative state, the piston plate 8 moves leftwards, the piston plate 8 drives the inserting rod 7 to move leftwards and insert into the inserting hole 5, the clamping hole in the inserting rod 7 is located on the left side of the valve rod 4, then the bayonet 6 is vertically inserted into the clamping hole through the through hole in the rotating handle 4, the bayonet 6 is located on the left side of the valve rod 4, the bayonet 6 abuts against the left side face of the valve rod 4, so that the inserting rod 7 can be prevented from being automatically drawn out rightwards from the inserting hole 5, the locking of the piston rod 10 is realized, the piston rod 10 is prevented from being reset, gas in the air cavity 17 is prevented from being drawn out by the inflator 9, and the expansion state of the sealing block 14 can be maintained for a long time. In addition, the inserted link 7 is inserted into the insertion hole 5, so that the valve rod 4 is locked, and the phenomenon that the water outlet 2 is opened by mistake due to the fact that the valve rod 4 rotates by mistake is avoided.

When the water outlet 2 needs to be opened, the hand penetrates through the through hole on the rotating handle 4 to take the bayonet pin 6 out of the bayonet hole, the piston plate 8 is pulled rightwards, the piston plate 8 drives the piston to move leftwards through the piston rod 10, and the gas in the gas cavity 17 enters the gas cylinder 9. Meanwhile, the inserted rod 7 is pulled out from the jack 5, the inserted rod 7 does not lock the valve rod 4 any more, the rotating handle 3 is rotated, the rotating handle 3 drives the valve rod 4 to rotate, and the valve rod 4 drives the valve core to move upwards, so that the water outlet 2 is opened.

The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a water-saving irrigation valve, includes valve body, case and valve rod, be equipped with water inlet and delivery port on the valve body, case sliding connection is in the valve body, and the one end of valve rod is located the valve body and rotates to be connected on the case, valve rod and valve body threaded connection, and the other end of valve rod is located the outside of valve body and installs rotation handle, its characterized in that: the valve core comprises a first fixing plate, a second fixing plate and a fixing block, wherein the first fixing plate and the second fixing plate are respectively fixedly connected to two sides of the fixing block, an elastic sealing block is arranged between the first fixing plate and the second fixing plate, and the side surface of the sealing block is attached to the inner wall of the valve body; an air cavity is arranged between the sealing block and the fixing block; the air cylinder is installed on the top of the valve body, the piston is connected to the air cylinder in a sliding mode, the piston rod is fixedly connected to the piston, and the air pipe is connected between the air cylinder and the air cavity.

2. The water saving irrigation valve as claimed in claim 1, wherein: the inflator is transversely placed, fixedly connected with piston plate on the piston rod, fixedly connected with inserted bar on the piston plate, the position that the valve rod is located the valve body outside is equipped with horizontal jack, and the inserted bar can insert the jack in, be equipped with the card hole on the inserted bar, worn the bayonet lock in the card hole.

3. The water saving irrigation valve as claimed in claim 1, wherein: the air pipe is provided with a telescopic part which is positioned between the top of the valve core and the top of the valve body.

4. The water saving irrigation valve as claimed in claim 1, wherein: and a bearing is connected between the bottom end of the valve rod and the fixed block.

5. The water saving irrigation valve as claimed in claim 1, wherein: and a limiting block is fixedly arranged in the air cavity and abuts against the sealing block.

6. The water saving irrigation valve as claimed in claim 1, wherein: and the top of the valve body is fixedly connected with a valve rod seat, the valve rod penetrates through the valve rod seat, and the valve rod is in threaded connection with the valve rod seat.

7. The water saving irrigation valve as claimed in claim 1, wherein: sealing gaskets are arranged between the fixing block and the first fixing plate and between the fixing block and the second fixing plate.

8. The water saving irrigation valve as claimed in claim 6, wherein: and a sealing ring is arranged between the valve rod seat and the top of the valve body.