CN209212990U - A kind of full balance stop valve of super-pressure - Google Patents

Abstract

The utility model discloses a kind of full balance stop valves of super-pressure, including valve body, the right side of the valve body is connected with link block by bolt thread, the right side of the link block, which is run through, is equipped with bull stick, the inner cavity of valve body is extended on the left of the bull stick, and it is fixedly connected with the first helical gear, the lower end of the body cavity is fixedly connected with support plate, the top of the support plate is connected with screwed pipe by bearing, the outer surface of the screwed pipe is arranged with the second helical gear, and the second helical gear thread in inner cavity is connected with threaded rod.The utility model passes through the cooperation of valve body, link block, bull stick, the first helical gear, support plate, screwed pipe, the second helical gear, threaded rod, pressing plate, buffer spring, spool, loose slot and motion bar, solves the problem of full balance stop valve close moment of traditional high pressure is big, leakproofness is poor, especially in hyperbaric environment using damage is be easy to cause.

Description

A kind of full balance stop valve of super-pressure

Technical field

The utility model relates to valve technology field, specially a kind of full balance stop valve of super-pressure.

Background technique

Shut-off valve is also pipe valve, is a kind of most popular valve, and why very popular it is, is due to being opened and closed Frictional force is small between sealing surface in journey, relatively durable, and Lift is little, manufacture be easy, it is easy to maintenance, be applicable not only in it is low Pressure, and it is suitable for high pressure, the closure principle of shut-off valve is, by valve stem pressure, to keep valve clack sealing surface tight with sealing surface of seat Closely connected conjunction prevents flow of media, but traditional full balance stop valve close moment of high pressure is big, leakproofness is poor, especially in high compression ring In border using be easy to cause damage.

Utility model content

The purpose of this utility model is to provide a kind of full balance stop valves of super-pressure, have advantage resistant to pressure, solve Traditional high pressure full balance stop valve close moment is big, leakproofness is poor, using be easy to causeing damage especially in hyperbaric environment The problem of.

To achieve the above object, the utility model provides the following technical solutions: a kind of full balance stop valve of super-pressure, including The right side of valve body, the valve body is connected with link block by bolt thread, and the right side of the link block, which is run through, is equipped with bull stick, described The inner cavity of valve body is extended on the left of bull stick, and is fixedly connected with the first helical gear, and the lower end of the body cavity is fixedly connected There is support plate, the top of the support plate is connected with screwed pipe by bearing, and the outer surface of the screwed pipe is arranged with Two helical gears, the second helical gear thread in inner cavity are connected with threaded rod, are fixedly connected with pressing plate at the top of the threaded rod, It is fixedly connected with buffer spring at the top of the pressing plate, spool, the pressing plate top are fixedly connected at the top of the buffer spring The two sides in portion offer loose slot, and the bottom at the spool both ends is fixedly connected to motion bar, and the motion bar extends to The inner cavity of loose slot.

Preferably, the two sides of the loose slot inner cavity offer sliding slot, and the inner cavity of the sliding slot slidably connects sliding block, The sliding block is fixedly connected far from the side of sliding slot inner cavity with motion bar.

Preferably, the two sides of the body cavity offer slideway, and the inner cavity of the slideway slidably connects slide bar, institute Slide bar is stated to be fixedly connected with the pressing plate far from the side of slideway inner cavity.

Preferably, one end that the bull stick is located at outside link block is fixedly connected with turntable.

Preferably, gasket is fixedly connected at the top of the spool.

Compared with prior art, the beneficial effects of the utility model are as follows:

The utility model drives the rotation of the first helical gear by rotary turnplate, the rotation of driven by rotary disc bull stick, bull stick, and first tiltedly Gear drives the rotation of the second helical gear, and the second helical gear drives screwed pipe rotation, threaded rod band dynamic pressure while screwed pipe rotates Plate and valve core movement play the effect for closing shut-off valve, in the process impact of the hydraulic pressure to spool to prevent water body flow Power can pass to buffer spring, buffer spring stress and deformation, to be buffered to impact, while spool will drive motion bar to Movement, is also a kind of buffering to impacting with high pressure power, solves the full balance stop valve close moment of traditional high pressure in loose slot Greatly, leakproofness is poor, the problem of especially in hyperbaric environment using damage is be easy to cause.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model screwed pipe schematic cross-sectional view；

Fig. 3 is the partial enlargement structural representation of A in the utility model Fig. 1.

In figure: 1 valve body, 2 link blocks, 3 bull sticks, 4 first helical gears, 5 support plates, 6 screwed pipes, 7 second helical gears, 8 spiral shells Rasp bar, 9 pressing plates, 10 buffer springs, 11 spools, 12 loose slots, 13 motion bars, 14 sliding slots, 15 sliding blocks, 16 slideways, 17 slide bars, 18 Turntable.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

It please refers to Fig. 1-3, a kind of full balance stop valve of super-pressure, including valve body 1, the right side of valve body 1 and passes through bolt thread It is connected with link block 2, the right side of link block 2, which is run through, is equipped with bull stick 3, and one end that bull stick 3 is located at outside link block 2 is fixedly connected with Turntable 18, the left side of bull stick 3 extend to the inner cavity of valve body 1, and are fixedly connected with the first helical gear 4, and the lower end of 1 inner cavity of valve body is solid Surely it is connected with support plate 5, the top of support plate 5 is connected with screwed pipe 6 by bearing, and the outer surface of screwed pipe 6 is arranged with Second helical gear 7, the thread in inner cavity of the second helical gear 7 are connected with threaded rod 8, and the top of threaded rod 8 is fixedly connected with pressing plate 9, The two sides of 1 inner cavity of valve body offer slideway 16, and the inner cavity of slideway 16 slidably connects slide bar 17, and slide bar 17 is far from slideway 16 The side of chamber is fixedly connected with pressing plate 9, and the top of pressing plate 9 is fixedly connected with buffer spring 10, and the top of buffer spring 10 is fixed It is connected with spool 11, the top of spool 11 is fixedly connected with gasket, and the two sides at 9 top of pressing plate offer loose slot 12, valve The bottom at 11 both ends of core is fixedly connected to motion bar 13, and the two sides of 12 inner cavity of loose slot offer sliding slot 14, sliding slot 14 Inner cavity slidably connects sliding block 15, and sliding block 15 is fixedly connected far from the side of 14 inner cavity of sliding slot with motion bar 13, and motion bar 13 prolongs The inner cavity for extending to loose slot 12, by rotary turnplate 18, turntable 18 drives bull stick 3 to rotate, and bull stick 3 drives the rotation of the first helical gear 4 Turn, the first helical gear 4 drives the rotation of the second helical gear 7, and the second helical gear 7 drives screwed pipe 6 to rotate, and screwed pipe 6 rotates same When threaded rod 8 moved with dynamic pressure plate 9 and spool 11, to prevent water body flow, the effect for closing shut-off valve is played, in this process Middle hydraulic pressure can pass to buffer spring 10,10 stress and deformation of buffer spring, to delay to impact to the impact force of spool 11 Punching, while spool 11 will drive motion bar 13 and move into loose slot 12, be solved to a kind of buffering of impacting with high pressure power The full balance stop valve close moment of traditional high pressure is big, leakproofness is poor, using be easy to causeing damage especially in hyperbaric environment Problem.

In use, rotary turnplate 18, turntable 18 drives bull stick 3 to rotate, and bull stick 3 drives the rotation of the first helical gear 4, and first tiltedly Gear 4 drives the rotation of the second helical gear 7, and the second helical gear 7 drives screwed pipe 6 to rotate, threaded rod 8 while screwed pipe 6 rotates Band dynamic pressure plate 9 and spool 11 move, to prevent water body flow, play the effect for closing shut-off valve, in the process hydraulic pressure pair The impact force of spool 11 can pass to buffer spring 10,10 stress and deformation of buffer spring, to buffer to impact, while valve Core 11 will drive motion bar 13 and move into loose slot 12, also be to solve traditional height to a kind of buffering of impacting with high pressure power Press that full balance stop valve close moment is big, leakproofness is poor, the problem of especially in hyperbaric environment using damage is be easy to cause.

In summary: the full balance stop valve of the super-pressure passes through valve body 1, link block 2, bull stick 3, the first helical gear 4, branch Fagging 5, screwed pipe 6, the second helical gear 7, threaded rod 8, pressing plate 9, buffer spring 10, spool 11, loose slot 12 and motion bar 13 Cooperation, solve that the full balance stop valve close moment of traditional high pressure is big, leakproofness is poor, using holding especially in hyperbaric environment The problem of easily causing damage.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of full balance stop valve of super-pressure, including valve body (1), it is characterised in that: pass through bolt on the right side of the valve body (1) It is threaded with link block (2), the right side of the link block (2), which is run through, is equipped with bull stick (3), and the left side of the bull stick (3) extends To the inner cavity of valve body (1), and the first helical gear (4) are fixedly connected with, the lower end of valve body (1) inner cavity is fixedly connected with support The top of plate (5), the support plate (5) is connected with screwed pipe (6) by bearing, the appearance surface cover of the screwed pipe (6) Equipped with the second helical gear (7), the thread in inner cavity of second helical gear (7) is connected with threaded rod (8), the threaded rod (8) Top is fixedly connected with pressing plate (9), is fixedly connected with buffer spring (10), the buffer spring at the top of the pressing plate (9) (10) it is fixedly connected at the top of spool (11), the two sides at the top of the pressing plate (9) offer loose slot (12), the spool (11) bottom at both ends is fixedly connected to motion bar (13), and the motion bar (13) extends to the inner cavity of loose slot (12).

2. the full balance stop valve of a kind of super-pressure according to claim 1, it is characterised in that: loose slot (12) inner cavity Two sides offer sliding slot (14), the inner cavity of the sliding slot (14) slidably connects sliding block (15), and the sliding block (15) is separate The side of sliding slot (14) inner cavity is fixedly connected with motion bar (13).

3. the full balance stop valve of a kind of super-pressure according to claim 1, it is characterised in that: valve body (1) inner cavity Two sides offer slideway (16), and the inner cavity of the slideway (16) slidably connects slide bar (17), and the slide bar (17) is far from sliding The side of road (16) inner cavity is fixedly connected with pressing plate (9).

4. the full balance stop valve of a kind of super-pressure according to claim 1, it is characterised in that: the bull stick (3), which is located at, to be connected It connects the external one end of block (2) and is fixedly connected with turntable (18).

5. the full balance stop valve of a kind of super-pressure according to claim 1, it is characterised in that: the top of the spool (11) It is fixedly connected with gasket.