CN209818880U

CN209818880U - Low-temperature long shaft stop valve capable of adjusting length of valve rod

Info

Publication number: CN209818880U
Application number: CN201920460646.6U
Authority: CN
Inventors: 王莹; 曾伟; 胡琴荣
Original assignee: JIANYANG ZHONGYUAN LOW TEMPERATURE EQUIPMENT KIT Co Ltd
Current assignee: JIANYANG ZHONGYUAN LOW TEMPERATURE EQUIPMENT KIT Co Ltd
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2019-12-20
Anticipated expiration: 2029-04-08

Abstract

The utility model discloses a can adjust low temperature major axis stop valve of valve rod length, including the valve body, rotate on the valve body and install the valve rod, the top fixed mounting of valve body has fixed pipe, and the valve rod rotates to be installed in fixed pipe, and the top fixed mounting of fixed pipe has valve-stem nut, and valve-stem nut is linked together with fixed pipe, the spread groove has been seted up at the top of valve rod, and slidable mounting has the governing pipe in the spread groove, and the top welding of governing pipe has the hand wheel, and a plurality of outer annular grooves have been seted up in the outside of governing pipe, two first recesses have been seted up at valve-stem nut's top, all rotate in two first recesses and install the kelly, and two. The utility model discloses simple structure, convenient to use, this low temperature major axis stop valve both can the adjusting valve rod the use length, can also fix the position of hand wheel when not using, make the application range of low temperature major axis stop valve wider, and be difficult to take place the valve body and open by mistake.

Description

Low-temperature long shaft stop valve capable of adjusting length of valve rod

Technical Field

The utility model belongs to the technical field of low temperature major axis stop valve technique and specifically relates to a can adjust low temperature major axis stop valve of valve rod length.

Background

A low temperature shut-off valve is a valve in which a closure member (a valve flap) moves along the centerline of a valve seat. According to the moving form of the valve clack, the change of the valve seat through opening is in direct proportion to the stroke of the valve clack, and the valve rod of the valve has relatively short opening or closing stroke and very reliable cutting-off function, and the change of the valve seat through opening is in direct proportion to the stroke of the valve clack, so that the valve is very suitable for adjusting the flow;

however, the existing low-temperature long shaft stop valve is single in function, on one hand, the length of the valve rod cannot be adjusted, the valve rods with different lengths cannot be used, and on the other hand, the position of a hand wheel cannot be fixed when the valve is not used, so that valve misoperation is easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can adjust low temperature major axis stop valve of valve rod length to solve current low temperature major axis stop valve function singleness, the length of valve rod can not be adjusted, can not use the valve rod of different length, the valve can not the fixed hand wheel when not using the position, causes the problem of valve malfunction easily.

In order to solve the above problem, the utility model provides a following technical scheme:

a low-temperature long shaft stop valve capable of adjusting the length of a valve rod comprises a valve body, wherein the valve rod is rotatably installed on the valve body, a fixed pipe is fixedly installed at the top of the valve body, the valve rod is rotatably installed in the fixed pipe, a valve rod nut is fixedly installed at the top of the fixed pipe and communicated with the fixed pipe, a connecting groove is formed in the top of the valve rod, an adjusting pipe is slidably installed in the connecting groove, a hand wheel is welded at the top end of the adjusting pipe, a plurality of outer annular grooves are formed in the outer side of the adjusting pipe, two first grooves are formed in the top of the valve rod nut, clamping rods are rotatably installed in the two first grooves and movably installed in the outer annular grooves, a first fixing block is welded at one side of each clamping rod, a connecting rod is rotatably installed at one side of each first fixing block, two second grooves are formed in the top of, one ends of the two connecting rods are rotatably installed on the two corresponding second fixing blocks, a sliding hole is formed in one side of each second fixing block, a sliding rod is slidably installed in the sliding hole, the two ends of the sliding rod are respectively welded on the inner walls of the two sides of the second groove, and a first pressure spring is sleeved on the sliding rod.

Specifically, a plurality of fixed slots have been seted up in valve-stem nut's the outside, and the bottom welding of hand wheel has two installation pieces, and the mounting groove has all been seted up to the bottom of two installation pieces, all rotates in two mounting grooves and installs the rotor arm, and the cardboard has all been welded to one side that two rotor arms are close to each other, and the cardboard is with the fixed slot looks adaptation that corresponds, but the cardboard slides in the position of stable hand wheel in the fixed slot.

Specifically, two arc walls have been seted up to the bottom of hand wheel, and the arc pole has all been welded at the top of two rotor arms, and arc pole slidable mounting is in the arc wall that corresponds, all overlaps on two arc poles and is equipped with the second pressure spring, and the rotor arm drives the position that the arc pole can slide in the arc wall and can stabilize the rotor arm, and the rotor arm can be beaten to the second pressure spring and reset.

Specifically, set up the square groove that two symmetries set up on the inner wall of spread groove, the outside welding of control tube has the square piece that two symmetries set up, and square piece slidable mounting is in the square inslot that corresponds, and the control tube drives square piece and slides in square inslot, can stabilize the position of control tube when sliding.

More specifically, the rotation groove has all been seted up to one side of first fixed block and second fixed block, and the both ends of connecting rod are rotated and are installed in two rotation grooves that correspond.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model is matched with the valve body, the fixed pipe, the valve rod nut, the valve rod, the connecting groove, the adjusting pipe, the hand wheel, the outer ring groove, the first groove, the clamping rod, the first fixed block, the connecting rod, the second groove, the second fixed block, the fixed groove, the mounting block, the rotating arm and the clamping plate, when the length of the valve rod is required to be adjusted, when the hand wheel is pulled, the hand wheel drives the adjusting pipe to slide in the connecting groove, the adjusting pipe drives the square block to slide in the square groove, the adjusting pipe drives the clamping rod to lift, the clamping rod drives the first fixing block to rotate, the first fixing block drives the second fixing block to slide in the second groove and presses the first pressure spring, after the clamping rod is contacted with the other outer annular groove, the clamping rod is driven to be inserted into the outer ring groove under the elastic action of the first pressure spring, the rotating arm is pressed, the rotating arm drives the clamping plate to be separated from the fixing groove, the fixing of the hand wheel can be cancelled, and the hand wheel can be used for rotating the valve rod;

(2) the utility model discloses simple structure, convenient to use, this low temperature major axis stop valve both can the adjusting valve rod the use length, can also fix the position of hand wheel when not using, make the application range of low temperature major axis stop valve wider, and be difficult to take place the valve body and open by mistake.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic view of the three-dimensional structure of the valve-stem nut of the present invention.

Fig. 3 is a schematic perspective view of the adjusting tube of the present invention.

Fig. 4 is a schematic structural diagram of part a of the present invention.

Fig. 5 is a schematic structural diagram of the part B of the present invention.

In the drawings, the names of the parts corresponding to the reference numerals are as follows:

1-valve body, 2-fixed tube, 3-valve rod nut, 4-valve rod, 5-connecting groove, 6-adjusting tube, 7-handwheel, 8-outer ring groove, 9-first groove, 10-clamping rod, 11-first fixed block, 12-connecting rod, 13-second groove, 14-second fixed block, 15-fixed groove, 16-mounting block, 17-rotating arm and 18-clamping plate.

Detailed Description

The present invention will be further described with reference to the following drawings and examples, and embodiments of the present invention include, but are not limited to, the following examples.

As shown in fig. 1-5, a low-temperature long axis stop valve capable of adjusting the length of a valve rod comprises a valve body 1, a valve rod 4 is rotatably mounted on the valve body 1, a fixed pipe 2 is fixedly mounted at the top of the valve body 1, the valve rod 4 is rotatably mounted in the fixed pipe 2, a valve rod nut 3 is fixedly mounted at the top of the fixed pipe 2, the valve rod nut 3 is communicated with the fixed pipe 2, a connecting groove 5 is formed at the top of the valve rod 4, an adjusting pipe 6 is slidably mounted in the connecting groove 5, a hand wheel 7 is welded at the top end of the adjusting pipe 6, a plurality of outer annular grooves 8 are formed at the outer side of the adjusting pipe 6, two first grooves 9 are formed at the top of the valve rod nut 3, two clamping rods 10 are rotatably mounted in the two first grooves 9, the two clamping rods 10 are movably mounted in the outer annular grooves 8, a first fixing block 11 is, two second grooves 13 are formed in the top of the valve rod nut 3, second fixing blocks 14 are slidably mounted in the two second grooves 13, one ends of two connecting rods 12 are rotatably mounted on the corresponding two second fixing blocks 14, one side of each second fixing block 14 is provided with a slide hole, a slide rod is slidably mounted in the slide hole, two ends of the slide rod are respectively welded on the inner walls of two sides of each second groove 13, and a first pressure spring is sleeved on the slide rod, in the valve body, the fixing pipe 2, the valve rod nut 3, the valve rod 4, the connecting groove 5, the adjusting pipe 6, the hand wheel 7, the outer annular groove 8, the first groove 9, the clamping rod 10, the first fixing block 11, the connecting rod 12, the second grooves 13, the second fixing blocks 14, the fixing groove 15, the mounting block 16, the rotating arm 17 and the clamping plate 18 are matched, when the length of the valve rod 4 needs to be adjusted, the hand wheel 7 is pulled, the hand wheel 7 drives, the adjusting pipe 6 drives the square block to slide in the square groove, the adjusting pipe 6 drives the clamping rod 10 to lift up, the clamping rod 10 drives the first fixing block 11 to rotate, the first fixing block 11 drives the second fixing block 14 to slide in the second groove 13 and presses the first pressure spring, after the clamping rod 10 is contacted with the other outer annular groove 8, the clamping rod 10 is driven to be inserted into the outer annular groove 8 under the elastic action of the first pressure spring, the rotating arm 17 is pressed, the rotating arm 17 drives the clamping plate 18 to be separated from the fixing groove 15, the fixing of the hand wheel 7 can be cancelled, and the hand wheel 7 can be used for rotating the valve rod 4; the utility model discloses simple structure, convenient to use, this low temperature major axis stop valve both can the adjusting valve rod 4 the use length, can also fix the position of hand wheel 7 when not using, make the application range of low temperature major axis stop valve wider, and be difficult to take place valve body 1 and open by mistake.

In the utility model, a plurality of fixed grooves 15 are arranged on the outer side of the valve rod nut 3, two mounting blocks 16 are welded on the bottom of the hand wheel 7, mounting grooves are arranged on the bottoms of the two mounting blocks 16, rotating arms 17 are rotatably mounted in the two mounting grooves, a clamping plate 18 is welded on one side of the two rotating arms 17 close to each other, the clamping plate 18 is matched with the corresponding fixed groove 15, two arc-shaped grooves are arranged on the bottom of the hand wheel 7, arc-shaped rods are welded on the tops of the two rotating arms 17, the arc-shaped rods are slidably mounted in the corresponding arc-shaped grooves, a second pressure spring is sleeved on each of the two arc-shaped rods, two symmetrically arranged square grooves are arranged on the inner wall of the connecting groove 5, two symmetrically arranged square blocks are welded on the outer side of the adjusting pipe 6, the square blocks are slidably mounted in the corresponding square grooves, the rotating grooves are arranged, the two ends of the connecting rod 12 are rotatably installed in the corresponding two rotating grooves, the utility model is characterized in that the valve body 1, the fixed tube 2, the valve rod nut 3, the valve rod 4, the connecting groove 5, the adjusting tube 6, the hand wheel 7, the outer annular groove 8, the first groove 9, the clamping rod 10, the first fixed block 11, the connecting rod 12, the second groove 13, the second fixed block 14, the fixed groove 15, the installation block 16, the rotating arm 17 and the clamping plate 18 are matched, when the length of the valve rod 4 needs to be adjusted, the hand wheel 7 is pulled, the hand wheel 7 drives the adjusting tube 6 to slide in the connecting groove 5, the adjusting tube 6 drives the square block to slide in the square groove, the adjusting tube 6 drives the clamping rod 10 to lift, the clamping rod 10 drives the first fixed block 11 to rotate, the first fixed block 11 drives the second fixed block 14 to slide in the second groove 13 and presses the first pressure spring, after the clamping rod 10 is contacted, the clamping rod 10 is driven to be inserted into the outer ring groove 8 under the elastic action of the first pressure spring, the rotating arm 17 is pressed, the rotating arm 17 drives the clamping plate 18 to be separated from the fixing groove 15, the fixing of the hand wheel 7 can be cancelled, and the hand wheel 7 can be used for rotating the valve rod 4; the utility model discloses simple structure, convenient to use, this low temperature major axis stop valve both can the adjusting valve rod 4 the use length, can also fix the position of hand wheel 7 when not using, make the application range of low temperature major axis stop valve wider, and be difficult to take place valve body 1 and open by mistake.

The working principle is as follows: when the length of the valve rod 4 needs to be adjusted, the hand wheel 7 is pulled, the hand wheel 7 drives the adjusting pipe 6 to slide in the connecting groove 5, the adjusting pipe 6 drives the square block to slide in the square groove, the adjusting pipe 6 drives the clamping rod 10 to lift up, the clamping rod 10 drives the first fixing block 11 to rotate, the first fixing block 11 drives the connecting rod 12 to rotate, the connecting rod 12 rotates on the second fixing block 14 and drives the second fixing block 14 to slide in the second groove 13, the second fixing block 14 presses the first pressure spring, so that the first pressure spring is elastically deformed, after the clamping rod 10 is contacted with the other outer ring groove 8, the clamping rod 10 is driven to be inserted into the outer ring groove 8 due to the elastic action of the first pressure spring, the position of the adjusting pipe 6 can be fixed, the hand wheel 7 is rotated, the hand wheel 7 drives the adjusting pipe 6 to rotate, the adjusting pipe 6 drives the square block to rotate, the square block drives the valve rod 4 to rotate, the valve, the two clamping rods 10 are rotated to restore the adjusting pipe 6 to the original position, and the rotating arm 17 drives the clamping plate 18 to slide into the fixing groove 15, so that the hand wheel 7 can be fixed; the utility model discloses simple structure, convenient to use, this low temperature major axis stop valve both can the adjusting valve rod 4 the use length, can also fix the position of hand wheel 7 when not using, make the application range of low temperature major axis stop valve wider, and be difficult to take place valve body 1 and open by mistake.

According to the above embodiment, alright realize the utility model discloses well. It is worth to say that, on the premise of the above structural design, in order to solve the same technical problem, even if some insubstantial changes or retouching are made in the utility model, the essence of the adopted technical scheme is still the same as the utility model, so it should be in the protection scope of the utility model.

Claims

1. The low-temperature long shaft stop valve capable of adjusting the length of a valve rod comprises a valve body (1), wherein the valve rod (4) is rotatably mounted on the valve body (1), and is characterized in that a fixed pipe (2) is fixedly mounted at the top of the valve body (1), the valve rod (4) is rotatably mounted in the fixed pipe (2), a valve rod nut (3) is fixedly mounted at the top of the fixed pipe (2), the valve rod nut (3) is communicated with the fixed pipe (2), a connecting groove (5) is formed in the top of the valve rod (4), an adjusting pipe (6) is slidably mounted in the connecting groove (5), a hand wheel (7) is welded at the top end of the adjusting pipe (6), a plurality of outer annular grooves (8) are formed in the outer side of the adjusting pipe (6), two first grooves (9) are formed in the top of the valve rod nut (3), and clamping rods (10) are, equal movable mounting in outer annular groove (8) of two kellies (10), first fixed block (11) have all been welded to one side of two kellies (10), connecting rod (12) have been installed in the rotation of one side of first fixed block (11), two second recess (13) have been seted up at the top of valve-stem nut (3), equal slidable mounting has second fixed block (14) in two second recess (13), the one end of two connecting rod (12) is rotated and is installed on two second fixed blocks (14) that correspond, the slide opening has been seted up to one side of second fixed block (14), slidable mounting has the slide bar in the slide opening, the both ends of slide bar weld respectively on the both sides inner wall of second recess (13), the cover is equipped with first pressure spring on the slide bar.

2. The cryogenic long axis stop valve capable of adjusting the length of a valve stem of claim 1, wherein: a plurality of fixed slots (15) have been seted up in the outside of valve-stem nut (3), and the bottom welding of hand wheel (7) has two installation pieces (16), and the mounting groove has all been seted up to the bottom of two installation pieces (16), all rotates in two mounting grooves and installs rotor arm (17), and cardboard (18) have all been welded to one side that two rotor arms (17) are close to each other, cardboard (18) and corresponding fixed slot (15) looks adaptation.

3. The cryogenic long axis stop valve capable of adjusting the length of a valve stem of claim 1, wherein: two arc grooves are formed in the bottom of the hand wheel (7), arc rods are welded to the tops of the two rotating arms (17), the arc rods are slidably mounted in the corresponding arc grooves, and second pressure springs are sleeved on the two arc rods.

4. The cryogenic long axis stop valve capable of adjusting the length of a valve stem of claim 1, wherein: set up the square groove that two symmetries set up on the inner wall of spread groove (5), the outside welding of control tube (6) has the square piece that two symmetries set up, and square piece slidable mounting is in the square inslot that corresponds.

5. The cryogenic long axis stop valve capable of adjusting the length of a valve stem of claim 1, wherein: the rotating grooves are formed in one sides of the first fixing block (11) and the second fixing block (14), and the two ends of the connecting rod (12) are rotatably installed in the corresponding two rotating grooves.