CN215487744U

CN215487744U - High-pressure bellows gate valve

Info

Publication number: CN215487744U
Application number: CN202122166995.7U
Authority: CN
Inventors: 梅端文; 叶胜良
Original assignee: Wenzhou Luomai Valve Technology Co ltd
Current assignee: Wenzhou Luomai Valve Technology Co ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-01-11
Anticipated expiration: 2031-09-08

Abstract

The utility model discloses a high-pressure corrugated pipe gate valve which comprises a valve body, a valve cover, a mounting frame and a valve rod, wherein a flashboard is arranged at one end, positioned inside the valve body, of the valve rod, a hand wheel in threaded connection with the valve rod is rotatably arranged on the mounting frame, a fixed rod is fixedly arranged on the mounting frame, two locking sleeves are slidably sleeved on the fixed rod, a binding rope penetrating through the hand wheel is connected between the two locking sleeves, a locking column in threaded connection with the fixed rod is arranged on one locking sleeve, a rotating head is rotatably arranged on the locking column, a driving groove is arranged on the rotating head, a linkage part in linkage with the rotating head and a rotating part which is positioned below the linkage part and is in rotating fit with the rotating head are arranged on the locking column, and the rotating head slides along the axial direction of the locking column to be switched between the linkage part and the rotating part. The utility model has the following advantages and effects: the locking function is realized, the cost is low, and the sales benefit of the valve is not influenced.

Description

High-pressure bellows gate valve

Technical Field

The utility model relates to a valve, in particular to a high-pressure corrugated pipe gate valve.

Background

The gate valve is a valve with a shutter as an opening and closing part, the movement direction of the shutter is vertical to the fluid direction, and the gate valve can only be fully opened and fully closed and cannot be adjusted and throttled. In order to improve the sealing performance of the existing gate valve, a corrugated pipe gate valve is derived.

The application field of gate valve is very extensive, and the gate valve plays important emergency control effect even in some pipelines, applies to the gate valve under this kind of operating mode and can only open and close the action under emergency, if touched or triggered by accident in remaining time, will influence the normal operating of whole pipeline and trigger emergency alarm even, finally influences the normal operating of whole enterprise and directly starts emergent scheme even to cause unnecessary cost loss.

According to the situation, a series of valves with locks appear on the market, and hand wheels of the valves are locked by matching the locks with chains, so that the hand wheels can be operated to control the valve to move only after the locks are unlocked. But the mode through chain cooperation tool to lock has greatly increased the manufacturing cost of valve, leads to the marketing benefit of valve very influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-pressure corrugated pipe gate valve which has a locking function and low cost and cannot influence the sales benefits of the valve.

The technical purpose of the utility model is realized by the following technical scheme: the utility model provides a high pressure bellows gate valve, includes the valve body, set up in the valve gap of valve body, set up in the mounting bracket of valve gap and loop through the mounting bracket and valve gap and wear to establish the valve rod in the valve body, the valve rod is located the inside one end of valve body and is equipped with the flashboard, it is provided with the hand wheel that has with valve rod threaded connection to rotate on the mounting bracket, the fixed wherein one end that is provided with dead lever and dead lever is the free end on the mounting bracket, it is equipped with two the same locking cover, two to slide on the dead lever be connected with the wiring that passes the hand wheel between the locking cover, one of them be equipped with on the locking cover and just be used for restricting the gliding lock post of locking cover with dead lever threaded connection, the vertical position that sets up its below in the dead lever, it is equipped with the rotor to rotate on the lock post, be equipped with the drive groove on the rotor, be equipped with on the lock post and rotate the linkage portion that the head constitutes the linkage and be located linkage and just with rotor normal running fit's rotation portion below And the rotating head slides along the axial direction of the locking column to switch between the linkage part and the rotating part.

Through adopting above-mentioned technical scheme, tying up rope one end and passing behind the hand wheel and overlapping two locking cover simultaneously on the dead lever to pass the locking cover and dead lever threaded connection who is close to the dead lever free end through the locking post and fix this locking cover, and another locking cover is located between this locking cover and the mounting bracket, has also realized the fixed to this locking cover in step. The rotating head is located on the rotating portion under the action of gravity, when unlocking of the hand wheel is to be achieved, a worker inserts a tool matched with the driving groove into the driving groove and applies upward continuous acting force to the rotating head through the tool, the rotating head is switched to the linkage portion from the rotating portion, the rotating head and the linkage portion are linked through the upward acting force matched with the rotating force, and therefore the locking column can be driven to rotate, and unlocking operation of the locking column is achieved. This kind of mode passes through special operation means cooperation special operation instrument, reaches twice safety protection requirement, when someone had special operation instrument and want to cause the destruction deliberately, because it does not know special operation means and also can't unblock the locking post to play better safety protection effect, with low costs and can not influence the sales benefits of valve.

Further setting the following steps: the locking mechanism is characterized in that a linkage hole communicated with the driving groove is formed in the rotating head, the lower end of the locking column penetrates through the linkage hole and extends into the driving groove, a limiting portion which is in running fit with the driving groove and limits the rotating head to be separated from the locking column is arranged at the lower end of the locking column, the linkage hole is polygonal, the linkage portion is polygonal and matched with the linkage hole, and the driving groove is polygonal.

Through adopting above-mentioned technical scheme, the setting of spacing portion prevents to rotate the head and breaks away from with the locking post under the effect of gravity, and sets up through this kind of structure and makes the structure more stable and enable to rotate the better drive locking post of head, and the operation is more convenient.

Further setting the following steps: the locking mechanism comprises spiral grains formed on a locking column, and an annular limiting block surrounding the circle center of the locking column is arranged between the spiral grains and a linkage part.

Through adopting above-mentioned technical scheme, the setting of stopper prevents that the locking post from taking place to interfere at locking complex in-process, ensures to rotate the head and can stably switch between rotation portion and linkage portion.

Further setting the following steps: including two flanges that set up respectively in the valve body both ends, the both ends of valve body all are equipped with centering groove, every all be equipped with on the flange and extend into centering portion to centering groove and adaptation with it, work as when inserting centering groove to the middle part, the flange sets up with the terminal surface of valve body is coaxial.

By adopting the technical scheme, the size of the flange can be changed according to different use requirements, so that the valve has better universality and practicability; convenient butt joint installation between flange and the valve body is realized through the cooperation between to the middle groove and the middle part between the two, promotes the installation effectiveness.

Further setting the following steps: and an annular welding groove surrounding the center of the flange is formed between the flange and the valve body, and the cross section of the welding groove is V-shaped.

Through adopting above-mentioned technical scheme, the welding bath set up supply the welding fluid to pile up, make flange and valve body in the welded in-process welding fluid can not protrusion in the valve body surface, reduced the process of polishing the welding liquid level and making level, guaranteed the aesthetic property of valve.

Further setting the following steps: the valve comprises a valve body and is characterized in that a corrugated pipe sleeved on the valve rod is arranged in the valve body, a connecting block which is pressed and sealed by a valve cover is arranged in the valve body, the lower end of the corrugated pipe is connected with the valve rod in a sealing mode, and the upper end of the corrugated pipe is connected with the connecting block in a sealing mode.

Through adopting above-mentioned technical scheme, the setting of bellows further promotes the leakproofness and the pressability of valve, makes its use operating mode that can be better be applicable to highly compressed.

In conclusion, the utility model has the following beneficial effects: the utility model has the advantages of locking function, low cost and no influence on the sales benefit of the valve.

Drawings

FIG. 1 is a sectional view of the embodiment;

FIG. 2 is a partial cross-sectional view of the embodiment;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a partial schematic structural view of an embodiment;

fig. 5 is a partial exploded view of the embodiment.

In the figure: 1. a valve body; 2. a valve cover; 3. a mounting frame; 4. a valve stem; 5. a shutter plate; 6. a hand wheel; 7. fixing the rod; 8. a locking sleeve; 9. tying a rope; 10. a locking post; 11. rotating the head; 12. a drive slot; 13. a linkage section; 14. a rotating part; 15. a linkage hole; 16. a limiting part; 17. a helical pattern; 18. a limiting block; 19. a flange; 20. centering the groove; 21. for the middle part; 22. welding a groove; 23. a bellows; 24. and (4) connecting the blocks.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 5, a high-pressure bellows gate valve includes valve body 1, the fixed valve gap 2 that sets up in valve body 1, an organic whole set up in the mounting bracket 3 of valve gap 2 and loop through mounting bracket 3 and valve gap 2 and wear to establish the valve rod 4 in the valve body 1, and flashboard 5 is installed to the one end that valve rod 4 is located valve body 1 inside, rotates on the mounting bracket 3 to be provided with the hand wheel 6 that has with valve rod 4 threaded connection. Both ends of valve body 1 all are provided with flange 19, and coaxial circular centering groove 20 has all been seted up at the both ends of valve body 1, all is equipped with on every flange 19 to extend into centering portion 21 to centering groove 20 and adaptation with it, and when inserting centering groove 20 to middle part 21, flange 19 sets up with the terminal surface is coaxial of valve body 1.

An annular welding groove 22 surrounding the center of the flange 19 is formed between the flange 19 and the valve body 1, and the cross section of the welding groove 22 is V-shaped. Be equipped with the bellows 23 of locating valve rod 4 in the valve body 1, be equipped with in the valve body 1 and be pressed by valve gap 2 and hold sealed connecting block 24, the lower extreme and the valve rod 4 welding of bellows 23, the upper end welds with connecting block 24, realizes sealedly through the welded mode. The integrative wherein one end that is provided with dead lever 7 and dead lever 7 on the mounting bracket 3 is the free end, and the cover is equipped with two the same locking cover 8 on the dead lever 7 slides on, and fixedly connected with passes the wiring 9 of hand wheel 6 between two locking cover 8, and wiring 9 is wire rope.

One of the locking sleeves 8 is provided with a locking column 10 which is in threaded connection with the fixed rod 7 and used for limiting the locking sleeve 8 to slide, the locking column 10 penetrates through the locking sleeve 8 to be in threaded connection with the fixed rod 7, and the locking column 10 is vertically arranged at a position, close to the lower side of the fixed rod 7. The locking post 10 is rotatably provided with a rotating head 11, the lower end of the rotating head 11 is provided with a driving groove 12, the upper end surface of the rotating head 11 is provided with a linkage hole 15 communicated with the driving groove 12, the locking post 10 is provided with a linkage part 13 linked with the linkage hole 15 and a rotating part 14 which is positioned below the linkage part 13 and is in rotating fit with the linkage hole 15, and the rotating head 11 slides along the axial direction of the locking post 10 to realize the switching of the linkage hole 15 between the linkage part 13 and the rotating part 14.

The lower end of the locking column 10 penetrates through the linkage hole 15 and extends into the driving groove 12, the lower end of the locking column 10 is integrally provided with a limiting part 16 which is in running fit with the driving groove 12 and limits the rotating head 11 to be separated from the locking column 10, the linkage hole 15 is polygonal, the linkage part 13 is polygonal and is matched with the linkage hole 15, and the driving groove 12 is polygonal. The locking column 10 is formed with spiral lines 17, and an annular limiting block 18 surrounding the center of the locking column 10 is integrally arranged between the spiral lines 17 and the linkage part 13.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a high-pressure bellows gate valve, includes valve body (1), sets up in valve gap (2) of valve body (1), sets up in mounting bracket (3) of valve gap (2) and loops through mounting bracket (3) and valve rod (4) in valve body (1) are worn to establish with valve gap (2), the one end that valve rod (4) are located valve body (1) inside is equipped with flashboard (5), rotate hand wheel (6) that are provided with valve rod (4) threaded connection on mounting bracket (3), its characterized in that: wherein one end of the fixing rod (7) and the fixing rod (7) is a free end, the fixing rod (7) is slidably sleeved with two identical locking sleeves (8), a binding rope (9) which penetrates through the hand wheel (6) is connected between the two locking sleeves (8), one locking sleeve (8) is provided with a locking column (10) which is connected with the fixing rod (7) through threads and used for limiting the locking sleeve (8) to slide, the locking column (10) is vertically arranged at a position, which is close to the lower part of the fixing rod (7), on the locking column (10) is rotatably provided with a rotating head (11), the rotating head (11) is provided with a driving groove (12), the locking column (10) is provided with a linkage part (13) which is linked with the rotating head (11) and a rotating part (14) which is arranged below the linkage part (13) and is rotatably matched with the rotating head (11), the rotating head (11) slides along the axial direction of the locking column (10) and is switched between the linkage part (13) and the rotating part (14).

2. The high pressure bellows gate valve of claim 1, wherein: rotate head (11) and go up and form one and drive communicating linkage hole (15) in groove (12), locking post (10) lower extreme passes linkage hole (15) and extends into drive groove (12), the lower extreme of locking post (10) is equipped with and rotates spacing portion (16) that head (11) breaks away from locking post (10) with drive groove (12) normal running fit and restriction, the shape of linkage hole (15) is the polygon, the shape of linkage portion (13) is the polygon and cooperatees with linkage hole (15), the shape of drive groove (12) is the polygon.

3. The high pressure bellows gate valve of claim 1, wherein: the locking mechanism comprises a spiral line (17) formed on a locking column (10), and an annular limiting block (18) surrounding the circle center of the locking column (10) is arranged between the spiral line (17) and a linkage part (13).

4. The high pressure bellows gate valve of claim 1, wherein: including two flange (19) that set up respectively in valve body (1) both ends, the both ends of valve body (1) all are equipped with centering groove (20), every all be equipped with on flange (19) and extend into centering portion (21) to centering groove (20) and adaptation with it, work as when inserting centering groove (20) to middle part (21), flange (19) and the coaxial setting of terminal surface of valve body (1).

5. The high pressure bellows gate valve of claim 4, wherein: an annular welding groove (22) surrounding the circle center of the flange (19) is formed between the flange (19) and the valve body (1), and the cross section of the welding groove (22) is V-shaped.

6. The high pressure bellows gate valve of claim 1, wherein: the valve is characterized in that a corrugated pipe (23) sleeved on the valve rod (4) is arranged in the valve body (1), a connecting block (24) which is pressed and sealed by the valve cover (2) is arranged in the valve body (1), the lower end of the corrugated pipe (23) is connected with the valve rod (4) in a sealing mode, and the upper end of the corrugated pipe is connected with the connecting block (24) in a sealing mode.