CN216590219U

CN216590219U - Low temperature resistant regulating valve

Info

Publication number: CN216590219U
Application number: CN202123369766.1U
Authority: CN
Inventors: 连欢
Original assignee: Kunshan Ailite Electromechanical Equipment Co ltd
Current assignee: Fuheng Industrial Technology Kunshan Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-05-24
Anticipated expiration: 2031-12-29

Abstract

The utility model discloses a low temperature resistant regulating valve, which relates to the technical field of regulating valves and comprises a regulating valve main body, wherein a regulating screw rod connected with a valve rod is arranged in a valve seat of the regulating valve main body, a partition plate is arranged in the valve seat of the regulating valve main body, a first rotating shaft connected with the regulating screw rod is rotatably arranged on the partition plate, and a rotating drum is rotatably arranged on the valve seat of the regulating valve main body; pivot two can slide from top to bottom and drive the rotary drum and rotate, utilize prismatic picture peg and prismatic slot cooperation to use the connection of realizing pivot one and pivot two, thereby can press down pivot two when needs operate and realize being connected with pivot one, the elasticity that the operation was accomplished back loose hand wheel and was utilized spring one orders about pivot two and breaks away from pivot one, and cooperation locking mechanism uses, fine mistake of preventing has been reached and has been bumped the effect, mistake when effectively avoiding hand wheel and adjusting screw lug connection bumps the hand wheel and leads to the unexpected switching phenomenon of governing valve main part, moreover, the steam generator is simple in structure, the protective effect is good.

Description

Low temperature resistant regulating valve

Technical Field

The utility model relates to a governing valve technical field especially relates to a low temperature resistant governing valve.

Background

Valves are accessories for pipes used to open and close the pipe, control flow direction, regulate and control parameters of the transport medium. According to the function, the valve can be divided into a shut-off valve, a check valve, a regulating valve and the like, wherein the valve is a control part in a fluid conveying system and has the functions of stopping, regulating, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. The valves used in fluid control systems range from the simplest shut-off valves to the most complex valves used in autonomous systems, which are of a wide variety of types and specifications and can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, slurries, oils, liquid metals, and radioactive media. The valves are classified into cast iron valves, cast steel valves, stainless steel valves, chrome molybdenum vanadium steel valves, dual-phase steel valves, plastic valves, nonstandard valves, and the like according to the material.

Along with scientific and technological material's rapid development, use high temperature regulating valve and the low temperature regulating valve that uses in different trades to come into effect, but current low temperature regulating valve is operating the hand wheel and inside adjusting screw lug connection in the use, the mistake bumps the motion that the phenomenon leads to the valve plate easily to appear, and then leads to the switching of valve, medium unexpected circulation and shutoff appear easily, and lack effectual filtration impurity structure on the regulating valve, make impurity enter into the inside jam phenomenon that causes of regulating valve easily, the function is imperfect.

SUMMERY OF THE UTILITY MODEL

The utility model provides a low temperature resistant governing valve has solved current low temperature governing valve and has operated hand wheel and inside adjusting screw lug connection in the use, appears the mistake easily and bump the phenomenon and lead to the motion of valve plate, and then leads to the switching of valve, the unexpected circulation of medium and shutoff appear easily, and lack effectual filtration impurity structure on the governing valve for impurity enters into the inside jam phenomenon that causes of governing valve easily, the incomplete problem of function.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a low-temperature-resistant regulating valve comprises a regulating valve main body, wherein a regulating screw connected with a valve rod is arranged in a valve seat of the regulating valve main body, a partition plate is arranged in the valve seat of the regulating valve main body, a first rotating shaft connected with the regulating screw is rotatably arranged on the partition plate, a rotating drum is rotatably arranged on the valve seat of the regulating valve main body, a second rotating shaft matched with the first rotating shaft for use is slidably arranged on the inner wall of the rotating drum, a hand wheel is fixed at the top end of the second rotating shaft, a pressing ring barrel is arranged on the lower surface of the hand wheel, a locking mechanism matched with the pressing ring barrel for use is arranged on the upper surface of the valve seat of the regulating valve main body, a first connecting pipe is communicated with the inlet end of the regulating valve main body, a second connecting pipe is arranged at the other end of the first connecting pipe, an external thread and an internal thread matched for use are respectively arranged at one end of the first connecting pipe and the second connecting pipe, a flange plate is arranged at the end of the second connecting pipe, the inner walls of the first connecting pipe and the second connecting pipe are respectively provided with a filter screen and a protective steel mesh, and a cleaning mechanism for cleaning the filter screen is arranged in the second connecting pipe.

As an optimized scheme of the utility model, prismatic picture peg is installed on the top of pivot one, supply prismatic picture peg male prismatic slot of prismatic picture peg to be seted up to the bottom of pivot two.

As a preferred scheme of the utility model, spacing spout has all been seted up to the front and back both sides face of rotary drum inner wall, both sides all are fixed with gliding spacing slider in spacing spout around the outer surface of pivot, and install the spring that is connected with spacing slider in the spacing spout one.

As a preferred scheme of the utility model, locking mechanism slides the slide bar that runs through the fixed plate including installing the fixed plate at governing valve main part disk seat upper surface, installs wedge and the spacing dish at the slide bar both ends, and the cover is established at the outside spring two that is connected with fixed plate and spacing dish respectively in slide bar and both ends, the rotary drum surface has been seted up and has been supplied wedge male wedge groove, the inclined plane of wedge upwards lays and uses with the cooperation of clamping ring section of thick bamboo.

As a preferred scheme of the utility model, the week side of filter screen is personally submitted the annular array and is installed the spacing picture peg of a plurality of two, the inner wall of connecting pipe one is the annular and has seted up the spacing slot two that a plurality of supplied spacing picture peg two male, the surface mounting of protection steel mesh has spacing picture peg one, spacing slot one of using with the cooperation of spacing picture peg is seted up to the inner wall of connecting pipe two.

As the utility model discloses a preferred scheme, clean the mechanism including installing the backup pad in connecting pipe two, rotate the pivot three of installing in the backup pad, install brush and the impeller at three both ends of pivot, the side of brush is laminated with the side of filter screen mutually.

The utility model discloses in:

the low-temperature-resistant regulating valve is provided with the rotary drum and the rotary shaft II, the rotary shaft II can slide up and down and drive the rotary drum to rotate, the connection between the rotary shaft I and the rotary shaft II is realized by using the prism plugboard and the prism slot in a matched manner, so that the rotary shaft II can be pressed downwards to be connected with the rotary shaft I when operation is needed, the rotary shaft II is driven to be separated from the rotary shaft I by the aid of the elasticity of the spring I after the operation is finished, the rotary shaft II is matched with the locking mechanism to be used, a good anti-misoperation effect is further achieved, the phenomenon that the regulating valve body is accidentally opened and closed due to mistaken collision of the hand wheel when the hand wheel is directly connected with the regulating screw is effectively avoided, the structure is simple, and the protection effect is good;

this low temperature resistant governing valve is through setting up connecting pipe one and connecting pipe two that threaded connection is in the same place, utilizes protection steel mesh and filter screen to filter completely cut off large particulate matter and tiny particulate matter respectively, effectively avoids impurity to enter into the inside phenomenon that causes the jam to gather of governing valve main part, utilizes fluid medium's flow to order about the impeller rotation simultaneously, and then drives the brush rotation through pivot three, realizes cleaning the filter screen, avoids the mesh of filter screen to block up, perfect function diversity.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic structural view of a half-section of the present invention;

FIG. 4 is a schematic structural view of a first connecting pipe and a second connecting pipe of the present invention;

fig. 5 is an enlarged schematic structural view of a point a in fig. 2 according to the present invention;

fig. 6 is an enlarged schematic structural diagram of the present invention at B in fig. 3.

In the figure: 1. a regulator valve body; 2. adjusting the screw rod; 3. a partition plate; 4. a first rotating shaft; 5. a prism plugboard; 6. a rotating drum; 7. a second rotating shaft; 8. a limiting slide block; 9. a first spring; 10. a hand wheel; 11. a ring pressing cylinder; 12. a fixing plate; 13. a slide bar; 14. a wedge block; 15. a second spring; 16. A limiting disc; 17. a first connecting pipe; 18. a second connecting pipe; 19. a flange plate; 20. a protective steel mesh; 21. a first limiting plug board; 22. filtering with a screen; 23. a second limiting inserting plate; 24. a support plate; 25. A rotating shaft III; 26. a brush; 27. an impeller.

Detailed Description

Examples

Referring to fig. 1-6, the utility model provides a low temperature resistant regulating valve, which comprises a regulating valve main body 1, an adjusting screw 2 connected with a valve rod is arranged in a valve seat of the regulating valve main body 1, a baffle 3 is arranged in the valve seat of the regulating valve main body 1, a rotating shaft I4 connected with the adjusting screw 2 is rotatably arranged on the baffle 3, a rotating drum 6 is rotatably arranged on the valve seat of the regulating valve main body 1, a rotating shaft II 7 matched with the rotating shaft I4 for use is slidably arranged on the inner wall of the rotating drum 6, a prism plugboard 5 is arranged at the top end of the rotating shaft I4, a prism slot for inserting the prism plugboard 5 is arranged at the bottom end of the rotating shaft II 7, the rotating shaft II 7 can be connected with the rotating shaft I4 when moving downwards by the matching use of the prism plugboard 5 and the prism slot, and then can drive pivot one 4 synchronous rotation when making pivot two 7 rotate, realize the switching of governing valve main part 1.

Spacing spout has all been seted up to the front and back both sides face of 6 inner walls of rotary drum, both sides all are fixed with gliding spacing slider 8 in spacing spout around the two 7 surfaces of pivot, and install the spring 9 that is connected with spacing slider 8 in the spacing spout, utilize spacing slider 8 to slide in spacing spout, can support two 7 of pivots, make two 7 of pivots rotate in-process stability well and can order about 6 synchronous rotations of rotary drum, utilize the elasticity of a spring 9 to order about two 7 of pivots to upwards restore to the throne and break away from a pivot 4 after the operation is accomplished in the setting of a spring 9 simultaneously.

A hand wheel 10 is fixed at the top end of the second rotating shaft 7, a pressure ring barrel 11 is installed on the lower surface of the hand wheel 10, a locking mechanism matched with the pressure ring barrel 11 for use is arranged on the upper surface of a valve seat of the adjusting valve main body 1, the locking mechanism comprises a fixing plate 12 installed on the upper surface of the valve seat of the adjusting valve main body 1, a sliding rod 13 slidably penetrating through the fixing plate 12, a wedge block 14 and a limiting disc 16 installed at two ends of the sliding rod 13, a spring II 15 sleeved outside the sliding rod 13 and respectively connected with the fixing plate 12 and the limiting disc 16 at two ends, a wedge groove for inserting the wedge block 14 is formed in the outer surface of the rotary drum 6, the inclined surface of the wedge block 14 is upwards arranged and matched with the pressure ring barrel 11 for use, the wedge block 14 is matched with the pressure ring barrel 11 for use, the wedge block 14 can be driven to be separated from the wedge groove when the hand wheel 10 drives the pressure ring barrel 11 to move downwards, the locking of the rotary drum 6 is released, and then the rotary drum 6 can be driven to rotate when the second rotating shaft 7 is connected with the first rotating shaft 4, and when the hand wheel 10 is reset after the operation is finished, the wedge block 14 is driven to be clamped into the wedge groove again by the elasticity of the second spring 15, so that the rotary drum 6 is locked.

The inlet end of the adjusting valve main body 1 is communicated with a first connecting pipe 17, the other end of the first connecting pipe 17 is provided with a second connecting pipe 18, the first connecting pipe 17 and the second connecting pipe 18 have opposite ends provided with external threads and internal threads which are matched for use respectively, the end part of the second connecting pipe 18 is provided with a flange plate 19, the inner walls of the first connecting pipe 17 and the second connecting pipe 18 are provided with a filter screen 22 and a protective steel mesh 20 respectively, the peripheral side of the filter screen 22 is provided with a plurality of second limiting insertion plates 23 which are arranged in an annular array manner, the inner wall of the first connecting pipe 17 is provided with a plurality of second limiting insertion slots which are used for inserting the second limiting insertion plates 23 in an annular manner, the outer surface of the protective steel mesh 20 is provided with the first limiting insertion plates 21, the inner wall of the second connecting pipe 18 is provided with the first limiting insertion slots which are matched for use, the first limiting support can be carried out on the protective steel mesh 20 by matching the second limiting insertion plates 23 with the second limiting insertion slots.

Be provided with in the second connecting pipe 18 and be used for cleaning the mechanism that cleans to filter screen 22, clean the mechanism including installing backup pad 24 in the second connecting pipe 18, rotate pivot three 25 of installing in backup pad 24, install brush 26 and impeller 27 at pivot three 25 both ends, the side of brush 26 is laminated with filter screen 22's side mutually, effort when utilizing the fluid medium circulation orders about impeller 27 and rotates, and then drive pivot three 25 and rotate, pivot three 25 drives brush 26 and rotates and can clean filter screen 22 surface, avoid the mesh blocking phenomenon to appear.

The working principle is as follows: when the adjusting valve main body 1 needs to be opened or closed, the hand wheel 10 is pressed downwards, the hand wheel 10 drives the pressure ring cylinder 11 to move downwards to drive the wedge block 14 to move outwards to be separated from the wedge groove, the locking of the rotary cylinder 6 is released, the hand wheel 10 drives the rotary shaft two 7 to move synchronously when moving downwards, so that the rotary shaft two 7 and the rotary shaft one 4 are connected with each other through the prism insertion plate 5 and the prism insertion groove, then the hand wheel 10 can be rotated to drive the rotary shaft two 7 to rotate, the adjusting screw rod 2 is driven to rotate through the rotary shaft one 4 to realize opening or closing, the hand wheel 10 is released after the operation is completed, the rotary shaft two 7 is driven by the elasticity of the spring one 9 to drive the hand wheel 10 to move upwards to reset, the rotary shaft two 7 is separated from the rotary shaft one 4, the pressure ring cylinder 11 is separated from the wedge block 14, at the moment, the slide rod 13 is driven by the elasticity of the spring two 15 to drive the wedge block 14 to be clamped into the wedge groove again to realize the locking of the rotary cylinder 6, and the fluid medium is isolated from large particulate matter through the protective steel mesh 20 when circulating, and then is filtered from small particulate matter through the filter screen 22, and meanwhile, the medium can drive the impeller 27 to rotate when circulating, and then the rotating shaft three 25 drives the brush 26 to rotate to clean the surface of the filter screen 22.

Claims

1. The low-temperature-resistant regulating valve is characterized by comprising a regulating valve main body (1), wherein a regulating screw (2) connected with a valve rod is arranged in a valve seat of the regulating valve main body (1), a partition plate (3) is arranged in the valve seat of the regulating valve main body (1), a first rotating shaft (4) connected with the regulating screw (2) is rotatably arranged on the partition plate (3), a rotating drum (6) is rotatably arranged on the valve seat of the regulating valve main body (1), a second rotating shaft (7) matched with the first rotating shaft (4) for use is slidably arranged on the inner wall of the rotating drum (6), a hand wheel (10) is fixed at the top end of the second rotating shaft (7), a pressure ring barrel (11) is arranged on the lower surface of the hand wheel (10), a locking mechanism matched with the pressure ring barrel (11) for use is arranged on the upper surface of the valve seat of the regulating valve main body (1), and a first connecting pipe (17) is communicated with an inlet end of the regulating valve main body (1), the other end of connecting pipe (17) is provided with connecting pipe two (18) just, the external screw thread and the internal thread that the cooperation was used are seted up respectively to the relative one end of connecting pipe (17) and connecting pipe two (18), ring flange (19) are installed to the tip of connecting pipe two (18), the inner wall of connecting pipe (17) and connecting pipe two (18) is provided with filter screen (22) and protection steel mesh (20) respectively, be provided with in connecting pipe two (18) and be used for cleaning the mechanism that cleans filter screen (22).

2. The low temperature resistant regulating valve according to claim 1, wherein a prism insertion plate (5) is installed at the top end of the first rotating shaft (4), and a prism insertion groove for inserting the prism insertion plate (5) is formed at the bottom end of the second rotating shaft (7).

3. The low temperature resistant regulating valve according to claim 1, wherein the front side and the rear side of the inner wall of the rotating cylinder (6) are both provided with a limiting sliding groove, the front side and the rear side of the outer surface of the second rotating shaft (7) are both fixed with a limiting sliding block (8) sliding in the limiting sliding groove, and a first spring (9) connected with the limiting sliding block (8) is installed in the limiting sliding groove.

4. The low temperature resistant regulating valve according to claim 1, wherein the locking mechanism comprises a fixing plate (12) installed on the upper surface of a valve seat of the regulating valve main body (1), a sliding rod (13) slidably penetrating through the fixing plate (12), a wedge block (14) and a limiting disc (16) installed at two ends of the sliding rod (13), a second spring (15) sleeved outside the sliding rod (13) and connected with the fixing plate (12) and the limiting disc (16) at two ends respectively, a wedge groove for inserting the wedge block (14) is formed in the outer surface of the rotary drum (6), and an inclined surface of the wedge block (14) is arranged upwards and is matched with the pressure ring drum (11) for use.

5. The low temperature resistant regulating valve according to claim 1, wherein a plurality of second limiting insertion plates (23) are installed on the periphery of the filter screen (22) in an annular array, a plurality of second limiting insertion slots into which the second limiting insertion plates (23) are inserted are annularly formed in the inner wall of the first connecting pipe (17), the first limiting insertion plates (21) are installed on the outer surface of the protective steel mesh (20), and the first limiting insertion slots matched with the first limiting insertion plates (21) are formed in the inner wall of the second connecting pipe (18).

6. The valve for regulating low temperature resistance according to claim 1, wherein the sweeping mechanism comprises a support plate (24) arranged in the second connecting pipe (18), a third rotating shaft (25) rotatably arranged on the support plate (24), a brush (26) and an impeller (27) arranged at two ends of the third rotating shaft (25), and the side surface of the brush (26) is attached to the side surface of the filter screen (22).