CN113864461A

CN113864461A - Forged steel stop valve that cushioning nature is high

Info

Publication number: CN113864461A
Application number: CN202111289281.3A
Authority: CN
Inventors: 王少舫; 单立强; 单加冕; 潘云好; 商红丽
Original assignee: Liqiang Valve Co ltd
Current assignee: Liqiang Valve Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2021-12-31
Anticipated expiration: 2041-11-02
Also published as: CN113864461B

Abstract

The invention discloses a forged steel stop valve with high buffering property, belonging to the stop valve field, the forged steel stop valve with high buffering property comprises a valve body, wherein the gas in a semi-inflatable air bag is totally concentrated at the inner top end of the semi-inflatable air bag, so that space expansion blocks are forced to be separated from each other, in the process that the space expansion blocks are separated from each other, a buffer cavity is formed between the upper end of a connecting rod and the inner top end of a water pressure cavity, high-pressure water flow can continuously flow into the buffer cavity, when the circulating water flow impacts a valve core upwards, the water flow in the buffer cavity can buffer the contraction of the connecting rod, when the water pressure of the water flow is higher, the rotation frequency of a hollow ball body is increased, in the rotating process of the hollow ball body, a water pressure buffer arc sheet indirectly blocks the water flow, so as to buffer the circulation speed of the water, and if the rotating speed of the hollow ball body is higher, the blocking frequency of the water pressure buffer arc sheet is higher, the high-pressure circulating water flow can be buffered.

Description

Forged steel stop valve that cushioning nature is high

Technical Field

The invention relates to the field of stop valves, in particular to a forged steel stop valve with high buffering performance.

Background

The stop valve, also called stop valve, is one of the most widely used valves, and is popular because the friction force between the sealing surfaces is small in the opening and closing process, so that the stop valve is durable, the opening height is small, the manufacture is easy, the maintenance is convenient, the stop valve is suitable for medium and low pressure and high pressure, and the closing principle of the stop valve is that the sealing surface of the valve clack is tightly attached to the sealing surface of the valve seat by the pressure of a valve rod to prevent the medium from flowing. The valve of China has been specified in the 'three-part supply', the flow direction of the stop valve is uniformly from top to bottom, so the stop valve has directionality during installation, the structural length of the stop valve is longer than that of the gate valve, meanwhile, the fluid resistance is large, and the sealing reliability is not strong during long-term operation.

The valve is an important tool for controlling the fluid conveying flow rate, the valve is usually installed in a fluid conveying pipeline, when the fluid water pressure is high, strong impact force can be generated in the flow process in the conveying pipeline, when the valve core is opened, the impact force of water flow can continuously impact the valve core, the valve core and the rod of the traditional stop valve are generally fixedly connected, the transverse impact force borne by the valve core can be transmitted to the valve rod, and the valve rod is easy to deform in the long-time use process.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a forged steel stop valve with high buffering performance, wherein a valve rod is rotated to enable a valve core to be separated from a stop port of a valve body, so that water flows in an inner cavity of the valve body, if the water pressure of the water flows is high, when the water flows pass through the lower end of the valve rod, the water flows can enter a water pressure cavity through a first through hole, the water flows entering the water pressure cavity can extrude a semi-inflated airbag in cooperation with the water pressure, so that all gas in the semi-inflated airbag is concentrated at the inner top end of the semi-inflated airbag, space expansion blocks are forced to be separated from each other, in the process of separating the space expansion blocks, a first magnet block and a second magnet block are synchronously separated from the space expansion blocks, finally a connecting rod is separated from the inner top end of the water pressure cavity, and then the first limit ring and the second limit ring are matched, the joint rod is limited in the inner cavity of the water pressure cavity, a buffer cavity is finally formed between the upper end of the joint rod and the inner top end of the water pressure cavity, high-pressure water flow can continuously flow into the buffer cavity, when the valve core is impacted upwards by the flowing water flow, the contraction of the joint rod can be buffered by the water flow in the buffer cavity, the impact force on the valve rod is reduced, the possibility of deformation of the valve rod is reduced, when the water flow passes through the joint cylinder, the semi-circular sheet and the power arc sheet are matched, the water flow can continuously drive the hollow sphere to rotate, when the water pressure of the water flow is high, the flowing speed of the water flow is also increased, the rotating frequency of the hollow sphere is increased finally, in the rotating process of the hollow sphere, the water pressure buffer arc sheet can indirectly block the water flow, the flowing speed of the water is buffered, and if the rotating speed of the hollow sphere is increased, the blocking frequency of the water pressure buffering arc piece is faster, high-pressure circulating water flow can be buffered, and therefore impact force on the valve rod is reduced.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The forged steel stop valve with high buffering performance comprises a valve body, wherein the upper end of the valve body is fixedly connected with a valve cover, the upper end of the valve cover is rotatably connected with a valve rod, the lower end of the valve rod penetrates through an inner cavity of the valve cover and extends to the valve body, a water pressure cavity is formed in the valve rod, a first through hole is formed in the outer circumferential surface of the valve rod, the first through hole is communicated with the water pressure cavity, a connecting rod is embedded in the inner cavity of the water pressure cavity, a valve core is fixedly connected with the lower end of the connecting rod, a first magnet block is fixedly connected with the inner top end of the water pressure cavity, a second magnet block is fixedly connected with the upper end of the connecting rod, the second magnet block and the first magnet block are mutually attracted, a connecting ring is fixedly connected with the inner wall of the water pressure cavity, a semi-inflatable air bag is fixedly connected with the inner wall of the connecting ring, and a pair of space expansion blocks is fixedly connected with the inner wall of the semi-inflatable air bag, the semi-inflatable air bag is clamped between the first magnet block and the second magnet block in a matched mode, the outer circumferential surface of the connecting rod is fixedly connected with a first limiting ring, the inner wall of the water pressure cavity is fixedly connected with a second limiting ring, second through holes are formed in the surfaces of the first limiting ring and the second limiting ring, the valve rod is rotated, the valve core is separated from a stop port of the valve body, water flows in an inner cavity of the valve body, if the water pressure of the water flows is high, when the water flows pass through the lower end of the valve rod, the water flows can enter the water pressure cavity through the first through holes, the water flows entering the water pressure cavity can extrude the semi-inflatable air bag under the matched water pressure, so that all gas in the semi-inflatable air bag is concentrated at the inner top end of the semi-inflatable air bag, the space expansion blocks are forced to be separated from each other, and the first magnet block and the second magnet block are synchronously separated along with the space expansion blocks in the process of separating the space expansion blocks, finally make the joint pole break away from the interior top of water pressure cavity, first spacing ring and second spacing ring of deuterogamying for the joint pole carries on spacingly in the inner chamber of water pressure cavity, finally make and form the buffering cavity between the upper end of joint pole and the interior top of water pressure cavity, high-pressure rivers can constantly be gushed into to its inside of buffering cavity, when the rivers of circulation upwards strike the case, the inside rivers of its buffering cavity can cushion the shrink of joint pole, thereby reduce the impact force that the valve rod received, reduce the possibility that the deformation appears in the valve rod.

Further, the inner wall fixedly connected with of valve body water inlet end links up a section of thick bamboo, the inner wall fixedly connected with semicircle piece and the connecting rod of linking up a section of thick bamboo, the connecting rod is located the outside of semicircle piece, the outer periphery of connecting rod rotates and is connected with hollow spheroid, five power arcs of hollow spheroid outer periphery fixedly connected with and a water pressure buffering arc piece, the inner chamber of hollow spheroid is filled with little iron pearl, the outer periphery fixedly connected with collision piece of connecting rod, collision piece is located hollow spheroid's inner chamber, the inside of connecting rod is equipped with first heat conduction silk, the one end fixedly connected with heating ring that connecting rod was kept away from to first heat conduction silk, the heating ring is located the outside of valve rod, the outer periphery cover of first heat conduction silk is equipped with the radiation shield, the outer periphery of valve rod is equipped with the heated area, the inner wall fixedly connected with second heat conduction silk of heated area, the second heat-conducting wires extend to the inner cavity of the semi-inflatable air bag, when water flows through the connecting cylinder, the water flows continuously drive the hollow sphere to rotate by matching with the semi-circular sheets and the power arc sheets, when the water pressure of the water flows is higher, the flowing speed of the water flows is also increased, the rotating frequency of the hollow sphere is finally increased, in the rotating process of the hollow sphere, the water pressure buffering arc sheets indirectly block the water flows so as to buffer the flowing speed of the water, if the rotating speed of the hollow sphere is higher, the blocking frequency of the water pressure buffering arc sheets is also increased, the high-pressure flowing water flows can be buffered, the impact force borne by the valve rod is reduced, small iron beads in the hollow sphere continuously collide with the collision blocks in the rotating process of the hollow sphere so that the temperature of the inner cavity of the hollow sphere is continuously increased, and the heat of the inner cavity of the hollow sphere is conducted to the heating ring through the first heat-conducting wires, the heating ring is enabled to continuously heat the heated area, and finally the second heat conducting wires are matched to conduct heat to the inner cavity of the semi-inflatable air bag, so that the semi-inflatable air bag expands, the buffer effect of the expanded semi-inflatable air bag on the connecting rod can be further improved, the impact force on the valve rod is further reduced, and the possibility of deformation of the valve rod is reduced.

Furthermore, the inner wall of the valve cover is provided with a filler, the filler is in contact with the valve rod and is made of a flexible graphite material, and the filler improves the sealing property between the valve cover and the valve rod and reduces the possibility of water leakage.

Furthermore, a rubber sealing ring is fixedly connected to the cut-off port of the valve body, the inner diameter of the rubber sealing ring is larger than the minimum outer diameter of the valve core, and the inner diameter of the rubber sealing ring is smaller than the maximum outer diameter of the valve core, so that the rubber sealing ring can be tightly sleeved on the outer circumferential surface of the valve core, and the sealing performance between the valve core and the cut-off port of the valve body is improved.

Furthermore, the outer surface of the semi-inflatable airbag is provided with a heat insulation coating, so that the influence of water flow on the temperature inside the semi-inflatable airbag is reduced, and the expansion effect of the semi-inflatable airbag is improved.

Furthermore, the gas filled in the inner cavity of the semi-inflation airbag is carbon dioxide gas, and the carbon dioxide gas is heated and expands more easily, so that the expansion efficiency of the semi-inflation airbag is improved.

Furthermore, the outer ends of the pair of space expansion blocks are arc-shaped, and the arc ends of the pair of space expansion blocks are in contact, so that the space expansion blocks are separated more easily by air pressure in the semi-inflated airbag.

Further, the heat insulating sleeve is made of stainless steel materials, the inner wall of the heat insulating sleeve is provided with a heat insulating ceramic coating, the heat insulating ceramic coating is made of the stainless steel materials, the service life of the heat insulating sleeve is prolonged, the possibility of damage to the heat insulating sleeve is reduced, and the heat insulating ceramic coating is matched to improve the heat insulating effect of the heat insulating sleeve.

Furthermore, the inside of the water pressure cavity is provided with a small steel ball, the outer spherical surface of the small steel ball is respectively contacted with the inner wall of the valve rod and the outer circumferential surface of the connecting rod, and the connecting rod can be limited while moving up and down through the small steel ball, so that the possibility of position deviation of the connecting rod is reduced, and the valve core can be conveniently embedded into the stop port of the valve body.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) the scheme rotates the valve rod to enable the valve core to be separated from the stop port of the valve body, water flow is enabled to circulate in the inner cavity of the valve body, if the water pressure of the water flow is high, when the water flow passes through the lower end of the valve rod, the water flow can enter the water pressure cavity through the first through hole, the water flow entering the water pressure cavity can extrude the semi-inflated state air bag in cooperation with the water pressure, so that all gas in the semi-inflated state air bag is concentrated at the inner top end of the semi-inflated state air bag, space expansion blocks are forced to be separated from each other, in the process that the space expansion blocks are separated from each other, the first magnet block and the second magnet block are synchronously separated along with the space expansion blocks, finally the connecting rod is separated from the inner top end of the water pressure cavity, the first limiting ring and the second limiting ring are matched to limit the inner cavity of the water pressure cavity, and finally a buffer cavity is formed between the upper end of the connecting rod and the inner top end of the water pressure cavity, high-pressure water flow can constantly be gushed into to its inside of buffering cavity, and when the rivers of circulating upwards assaulted the case, the inside rivers of its buffering cavity can cushion the shrink of linking pole to reduce the impact force that the valve rod received, reduce the possibility that deformation appears in the valve rod.

(2) The inner wall of the water inlet end of the valve body is fixedly connected with a connecting cylinder, the inner wall of the connecting cylinder is fixedly connected with a semicircular sheet and a connecting rod, the connecting rod is positioned on the outer side of the semicircular sheet, the outer circumferential surface of the connecting rod is rotatably connected with a hollow sphere, the outer circumferential surface of the hollow sphere is fixedly connected with five power arc sheets and a water pressure buffering arc sheet, the inner cavity of the hollow sphere is filled with small iron beads, the outer circumferential surface of the connecting rod is fixedly connected with a collision block, the collision block is positioned in the inner cavity of the hollow sphere, a first heat-conducting wire is arranged inside the connecting rod, one end, far away from the connecting rod, of the first heat-conducting wire is fixedly connected with a heating ring, the heating ring is positioned on the outer side of the valve rod, the outer circumferential surface of the first heat-conducting wire is sleeved with a heat-insulating sleeve, the outer circumferential surface of the valve rod is provided with a heated area, the inner wall of the heated area is fixedly connected with a second heat-conducting wire, the second heat-conducting wire extends to the inner cavity of the semi-inflatable airbag, when water flows through the connecting cylinder, the water flow drives the hollow ball body to rotate continuously by matching with the semicircular sheet and the power arc sheet, when the water pressure of the water flow is higher, the flowing speed of the water flow is increased, and finally the rotating frequency of the hollow ball body is increased, in the rotating process of the hollow ball body, the water pressure buffering arc sheet indirectly blocks the water flow, so that the flowing speed of the water is buffered, if the rotating speed of the hollow ball body is higher, the blocking frequency of the water pressure buffering arc sheet is also increased, high-pressure flowing water flow can be buffered, so that the valve rod is reduced, in the rotating impact force process of the hollow ball body, small iron beads inside the hollow ball body continuously collide with the collision block, the temperature of the inner cavity of the hollow ball body is increased continuously, the heat of the inner cavity of the hollow ball body is conducted to the heating ring through the first heat conducting wires, so that the heating ring continuously heats a heated area, and finally, the second heat-conducting wires are matched to conduct heat to the inner cavity of the semi-inflatable air bag, so that the semi-inflatable air bag expands, the buffer effect of the expanded semi-inflatable air bag on the connecting rod can be further improved, the impact force on the valve rod is further reduced, and the possibility of deformation of the valve rod is reduced.

(3) The inner wall of the valve cover is provided with the filler, the filler is in contact with the valve rod and made of flexible graphite materials, and the sealing performance between the valve cover and the valve rod is improved and the possibility of water leakage is reduced through the filler.

(4) The stop port of the valve body is fixedly connected with a rubber sealing ring, the inner diameter of the rubber sealing ring is larger than the minimum outer diameter of the valve core, and the inner diameter of the rubber sealing ring is smaller than the maximum outer diameter of the valve core, so that the rubber sealing ring can be tightly sleeved on the outer circumferential surface of the valve core, and the sealing property between the valve core and the stop port of the valve body is improved.

(5) The outer surface of the semi-inflatable airbag is provided with the heat insulation coating, so that the influence of water flow on the internal temperature of the semi-inflatable airbag is reduced, and the expansion effect of the semi-inflatable airbag is improved.

(6) The gas filled in the inner cavity of the semi-inflatable airbag is carbon dioxide gas, and the carbon dioxide gas is heated and expands more easily, so that the expansion efficiency of the semi-inflatable airbag is improved.

(7) The outer ends of the pair of space expansion blocks are arc-shaped, and the arc ends of the pair of space expansion blocks are contacted, so that the space expansion blocks are separated more easily by air pressure in the semi-inflated airbag.

(8) The heat insulating sleeve is made of stainless steel materials, the inner wall of the heat insulating sleeve is provided with a heat insulating ceramic coating, the heat insulating sleeve is made of the stainless steel materials, the service life of the heat insulating sleeve is prolonged, the possibility of damage to the heat insulating sleeve is reduced, and the heat insulating ceramic coating is matched to improve the heat insulating effect of the heat insulating sleeve.

(9) The small steel balls are arranged in the water pressure cavity, the outer spherical surfaces of the small steel balls are respectively contacted with the inner wall of the valve rod and the outer circumferential surface of the connecting rod, the connecting rod can be limited when moving up and down through the small steel balls, the possibility of position deviation of the connecting rod is reduced, and the valve core can be conveniently embedded into the stop port of the valve body.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the valve core in an open state;

FIG. 3 is a schematic view of the valve stem construction of the present invention;

FIG. 4 is an enlarged view of FIG. 3 at A;

FIG. 5 is a schematic cross-sectional view of a semi-inflated bladder of the present invention;

FIG. 6 is a schematic side view of an engagement cylinder according to the present invention;

FIG. 7 is a schematic structural view of the half-round piece of the present invention in a disassembled state;

fig. 8 is a schematic sectional view of the hollow sphere of the present invention.

The reference numbers in the figures illustrate:

the valve comprises a valve body 1, a rubber sealing ring 101, a valve cover 2, a filler 201, a valve rod 3, a water pressure cavity 4, a small steel ball 401, a first through hole 5, a connecting rod 6, a valve core 7, a first magnet block 8, a second magnet block 9, a connecting ring 10, a semi-inflatable air bag 11, a space expansion block 111, a first limiting ring 12, a second limiting ring 13, a second through hole 14, a connecting cylinder 15, a semicircular piece 16, a connecting rod 17, a hollow sphere 18, a dynamic arc piece 19, a water pressure buffering arc piece 20, a small iron ball 21, a collision block 22, a first heat conducting wire 23, a heating ring 24, a heat insulation sleeve 25, a heating area 26 and a second heat conducting wire 27.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1-5, a forged steel stop valve with high buffering performance comprises a valve body 1, a valve cover 2 fixedly connected to the upper end of the valve body 1, a valve rod 3 rotatably connected to the upper end of the valve cover 2, the lower end of the valve rod 3 extending to the inner cavity of the valve body 1 through the valve cover 2, a hydraulic cavity 4 drilled in the valve rod 3, a first through hole 5 drilled in the outer circumferential surface of the valve rod 3, the first through hole 5 communicating with the hydraulic cavity 4, a joint rod 6 embedded in the inner cavity of the hydraulic cavity 4, a valve core 7 fixedly connected to the lower end of the joint rod 6, a first magnet block 8 fixedly connected to the inner top end of the hydraulic cavity 4, a second magnet block 9 fixedly connected to the upper end of the joint rod 6, a mutual attraction between the second magnet block 9 and the first magnet block 8, a joint ring 10 fixedly connected to the inner wall of the hydraulic cavity 4, and a semi-inflatable state airbag 11 fixedly connected to the inner wall of the joint ring 10, the inner wall of the semi-inflatable airbag 11 is fixedly connected with a pair of space expansion blocks 111, the first magnet block 8 and the second magnet block 9 are matched with each other to clamp the semi-inflatable airbag 11, the outer circumferential surface of the connecting rod 6 is fixedly connected with a first limiting ring 12, the inner wall of the water pressure cavity 4 is fixedly connected with a second limiting ring 13, the surfaces of the first limiting ring 12 and the second limiting ring 13 are both provided with second through holes 14, the valve rod 3 is rotated to enable the valve core 7 to be separated from a stop port of the valve body 1, so that water flows in the inner cavity of the valve body 1 to circulate, if the water pressure of the water flows is high, when the water flows pass through the lower end of the valve rod 3, the water flows enter the water pressure cavity 4 through the first through holes 5, the water flows entering the water pressure cavity 4 can extrude the semi-inflatable airbag 11 under the matching with the water pressure, and accordingly, all gas in the semi-inflatable airbag 11 is concentrated at the inner top end of the semi-inflatable airbag 11, thereby force space expansion piece 111 to separate each other, at the in-process that space expansion piece 111 separates each other, its first magnet piece 8 and second magnet piece 9 are followed space expansion piece 111 and are separated in step, finally make the extension rod 6 break away from the interior top of water pressure cavity 4, first spacing ring 12 and second spacing ring 13 of deuterogamy, make the extension rod 6 carry on spacingly in the inner chamber of water pressure cavity 4, finally make and form the buffering cavity between the upper end of extension rod 6 and the interior top of water pressure cavity 4, the inside of its buffering cavity can constantly be gushed into high-pressure rivers, when the rivers that circulate upwards strike the case 7, the inside rivers of its buffering cavity can cushion the shrink of extension rod 6, thereby reduce the impact force that valve rod 3 received, reduce the possibility that deformation appears in valve rod 3.

Referring to fig. 1-2 and 6-8, the inner wall of the water inlet end of the valve body 1 is fixedly connected with a connecting cylinder 15, the inner wall of the connecting cylinder 15 is fixedly connected with a semicircular plate 16 and a connecting rod 17, the connecting rod 17 is positioned at the outer side of the semicircular plate 16, the outer circumferential surface of the connecting rod 17 is rotatably connected with a hollow sphere 18, the outer circumferential surface of the hollow sphere 18 is fixedly connected with five power arc plates 19 and a water pressure buffer arc plate 20, the inner cavity of the hollow sphere 18 is filled with small iron beads 21, the outer circumferential surface of the connecting rod 17 is fixedly connected with a collision block 22, the collision block 22 is positioned in the inner cavity of the hollow sphere 18, a first heat conducting wire 23 is arranged inside the connecting rod 17, one end of the first heat conducting wire 23 far away from the connecting rod 17 is fixedly connected with a heating ring 24, the heating ring 24 is positioned at the outer side of the valve rod 3, the outer circumferential surface of the first heat conducting wire 23 is sleeved with a heat insulating sleeve 25, the outer circumferential surface of the valve rod 3 is provided with a heated area 26, the inner wall of the heated area 26 is fixedly connected with a second heat conducting wire 27, the second heat conducting wire 27 extends to the inner cavity of the semi-inflatable airbag 11, when water flows through the connecting cylinder 15, the semi-circular sheet 16 and the power arc sheet 19 are matched, the water flow continuously drives the hollow sphere 18 to rotate, when the water pressure of the water flow is higher, the flowing speed of the water flow is increased, and finally the rotating frequency of the hollow sphere 18 is increased, in the rotating process of the hollow sphere 18, the water pressure buffering arc sheet 20 indirectly blocks the water flow so as to buffer the flowing speed of the water, if the rotating speed of the hollow sphere 18 is increased, the blocking frequency of the water pressure buffering arc sheet 20 is increased, the high-pressure flowing water flow can be buffered, so that the impact force on the valve rod 3 is reduced, in the rotating process of the hollow sphere 18, the small iron beads 21 in the hollow sphere 18 continuously collide with the block 22, the temperature of the inner cavity of the hollow sphere 18 is continuously increased, the heat of the inner cavity of the hollow sphere 18 is conducted to the heating ring 24 through the first heat conducting wire 23, the heating ring is continuously heated to the heated area 26, and finally the heat is conducted to the inner cavity of the semi-inflatable airbag 11 through the second heat conducting wire 27, so that the semi-inflatable airbag 11 is expanded, the buffer effect of the expanded semi-inflatable airbag 11 on the connecting rod 6 can be further improved, the impact force on the valve rod 3 is further reduced, and the possibility of deformation of the valve rod 3 is reduced.

Referring to fig. 1-2, the inner wall of the bonnet 2 is provided with a filler 201, the filler 201 contacts the valve rod 3, the filler 201 is made of a flexible graphite material, the sealing performance between the bonnet 2 and the valve rod 3 is improved through the filler 201, and the possibility of water leakage is reduced, the cut-off port of the valve body 1 is fixedly connected with a rubber sealing ring 101, the inner diameter of the rubber sealing ring 101 is larger than the minimum outer diameter of the valve core 7, the inner diameter of the rubber sealing ring 101 is smaller than the maximum outer diameter of the valve core 7, so that the rubber sealing ring 101 can be tightly sleeved on the outer circumferential surface of the valve core 7, the sealing performance between the valve core 7 and the cut-off port of the valve body 1 is improved, the heat insulation sleeve 25 is made of a stainless steel material, the inner wall of the heat insulation sleeve 25 is provided with a heat insulation ceramic coating, the heat insulation sleeve 25 is made of a stainless steel material, the service life of the heat insulation sleeve 25 is prolonged, the possibility of damage of the heat insulation sleeve 25 is reduced, and the heat insulation ceramic coating is matched with the heat insulation ceramic coating, the heat insulation effect of the heat insulation sleeve 25 is improved.

Referring to fig. 5, the outer surface of the semi-inflated airbag 11 is provided with a thermal insulation coating, so that the influence of water flow on the internal temperature of the semi-inflated airbag 11 is reduced, the expansion effect of the semi-inflated airbag 11 is improved, the gas filled in the inner cavity of the semi-inflated airbag 11 is carbon dioxide, and the carbon dioxide is heated and expands more easily, so that the expansion efficiency of the semi-inflated airbag 11 is improved, the outer ends of the pair of space expansion blocks 111 are arc-shaped, and the arc ends of the pair of space expansion blocks 111 are in contact with each other, so that the space expansion blocks 111 are separated more easily by the air pressure inside the semi-inflated airbag 11.

Referring to fig. 3, a small steel ball 401 is disposed inside the hydraulic cavity 4, an outer spherical surface of the small steel ball 401 is in contact with an inner wall of the valve rod 3 and an outer circumferential surface of the connecting rod 6, and the connecting rod 6 can move up and down and be limited by the small steel ball 401, so that the possibility of position deviation of the connecting rod 6 is reduced, and the valve element 7 can be conveniently embedded into the stop port of the valve body 1.

The working principle is as follows: the valve rod 3 is rotated to enable the valve core 7 to be separated from the cut-off port of the valve body 1, water flow is enabled to circulate in the inner cavity of the valve body 1, if the water pressure of the water flow is high, when the water flow passes through the lower end of the valve rod 3, the water flow can enter the water pressure cavity 4 through the first through hole 5, the water flow entering the water pressure cavity 4 can extrude the semi-inflatable air bag 11 under the matching water pressure, so that the gas in the semi-inflatable air bag 11 is totally concentrated at the inner top end of the semi-inflatable air bag 11, the space expansion blocks 111 are forced to be separated from each other, in the process that the space expansion blocks 111 are separated from each other, the first magnet block 8 and the second magnet block 9 are synchronously separated from the space expansion blocks 111, finally, the connecting rod 6 is enabled to be separated from the inner top end of the water pressure cavity 4, and then the first limiting ring 12 and the second limiting ring 13 are matched, so that the connecting rod 6 is limited in the inner cavity of the water pressure cavity 4, finally, a buffer cavity is formed between the upper end of the connecting rod 6 and the inner top end of the water pressure cavity 4, high-pressure water flow continuously flows into the buffer cavity, when the flowing water flow impacts the valve core 7 upwards, the water flow in the buffer cavity can buffer the contraction of the connecting rod 6, so that the impact force on the valve rod 3 is reduced, the possibility of deformation of the valve rod 3 is reduced, when the water flow passes through the connecting cylinder 15, the water flow drives the hollow sphere 18 to rotate continuously by matching with the semicircular sheet 16 and the power arc sheet 19, when the water pressure of the water flow is higher, the flowing speed of the water flow is increased, finally, the rotating frequency of the hollow sphere 18 is increased, in the rotating process of the hollow sphere 18, the water pressure buffer arc sheet 20 indirectly blocks the water flow to buffer the flowing speed of the water, and if the rotating speed of the hollow sphere 18 is increased, the blocking frequency of the water pressure buffer arc sheet 20 is increased, can cushion highly compressed circulation rivers to reduce the impact force that valve rod 3 received, at hollow spheroid 18 pivoted in-process, the inside little iron bead 21 of its hollow spheroid 18 constantly collides with collision piece 22, make the temperature of hollow spheroid 18 inner chamber constantly rise, the heat of hollow spheroid 18 inner chamber is conducted to heating ring 24 through first heat-conducting wire 23, make heating ring constantly heat heated area 26, cooperate the second heat-conducting wire 27 to conduct the heat to the inner chamber of half inflation attitude gasbag 11 at last, make half inflation attitude gasbag 11 take place the inflation, the buffering effect to adapter rod 6 can further be improved to expanded half inflation attitude gasbag 11, further reduce the impact force that valve rod 3 received, reduce the possibility that valve rod 3 appears the deformation.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a forged steel stop valve that shock-absorbing nature is high, includes valve body (1), its characterized in that: the upper end of the valve body (1) is fixedly connected with a valve cover (2), the upper end of the valve cover (2) is rotatably connected with a valve rod (3), the lower end of the valve rod (3) penetrates through the valve cover (2) and extends to the inner cavity of the valve body (1), a water pressure cavity (4) is formed in the valve rod (3), a first through hole (5) is formed in the outer circumferential surface of the valve rod (3), the first through hole (5) is communicated with the water pressure cavity (4), an adapter rod (6) is embedded in the inner cavity of the water pressure cavity (4), a valve core (7) is fixedly connected with the lower end of the adapter rod (6), a first magnet block (8) is fixedly connected with the inner top end of the water pressure cavity (4), a second magnet block (9) is fixedly connected with the upper end of the adapter rod (6), and the second magnet block (9) and the first magnet block (8) are mutually attracted, the inner wall fixedly connected with of water pressure cavity (4) links up ring (10), the inner wall fixedly connected with of linking up ring (10) partly aerifys attitude gasbag (11), the inner wall fixedly connected with of partly aerifing attitude gasbag (11) expands piece (111) to a pair of space, cooperate the centre gripping between first magnet piece (8) and second magnet piece (9) and partly aerify attitude gasbag (11), the first spacing ring (12) of outer periphery fixedly connected with of linking pole (6), the inner wall fixedly connected with second spacing ring (13) of water pressure cavity (4), the chisel is all opened on the surface of first spacing ring (12) and second spacing ring (13) has second through-hole (14).

2. The forged steel stop valve with high cushioning property according to claim 1, wherein: the inner wall fixedly connected with of valve body (1) end of intaking links up a section of thick bamboo (15), the inner wall fixedly connected with semicircle piece (16) and connecting rod (17) of linking up a section of thick bamboo (15), connecting rod (17) are located the outside of semicircle piece (16), the outer periphery of connecting rod (17) rotates and is connected with hollow spheroid (18), five power arc pieces (19) and a water pressure buffering arc piece (20) of outer periphery fixedly connected with of hollow spheroid (18), the inner chamber packing of hollow spheroid (18) has little iron pearl (21), the outer periphery fixedly connected with collision piece (22) of connecting rod (17), collision piece (22) are located the inner chamber of hollow spheroid (18), the inside of connecting rod (17) is equipped with first heat conduction silk (23), the one end fixedly connected with heating ring (24) of connecting rod (17) are kept away from to first heat conduction silk (23), the heating ring (24) is located the outside of valve rod (3), the outer periphery cover of first heat-conducting wire (23) is equipped with radiation shield (25), the outer periphery of valve rod (3) is equipped with heated area (26), the inner wall fixedly connected with second heat-conducting wire (27) of heated area (26), second heat-conducting wire (27) extend to the inner chamber of half-inflation attitude gasbag (11).

3. The forged steel stop valve with high cushioning property according to claim 1, wherein: the inner wall of the valve cover (2) is provided with a filler (201), the filler (201) is in contact with the valve rod (3), and the filler (201) is made of a flexible graphite material.

4. The forged steel stop valve with high cushioning property according to claim 1, wherein: the stop port of the valve body (1) is fixedly connected with a rubber sealing ring (101), the inner diameter of the rubber sealing ring (101) is larger than the minimum outer diameter of the valve core (7), and the inner diameter of the rubber sealing ring (101) is smaller than the maximum outer diameter of the valve core (7).

5. The forged steel stop valve with high cushioning property according to claim 1, wherein: the outer surface of the semi-inflatable air bag (11) is provided with a heat insulation coating.

6. The forged steel stop valve with high cushioning property according to claim 1, wherein: the gas filled in the inner cavity of the semi-inflation state air bag (11) is carbon dioxide gas.

7. The forged steel stop valve with high cushioning property according to claim 1, wherein: the outer ends of the pair of space expansion blocks (111) are arc-shaped, and the arc ends of the pair of space expansion blocks (111) are in contact.

8. The forged steel stop valve with high buffering capacity according to claim 2, characterized in that: the heat insulation sleeve (25) is made of stainless steel materials, and a heat insulation ceramic coating is arranged on the inner wall of the heat insulation sleeve (25).

9. The forged steel stop valve with high cushioning property according to claim 1, wherein: the hydraulic control valve is characterized in that small steel balls (401) are arranged inside the hydraulic cavity (4), and the outer spherical surfaces of the small steel balls (401) are respectively in contact with the inner wall of the valve rod (3) and the outer circumferential surface of the connecting rod (6).