CN213451723U

CN213451723U - Bellows stop valve with good sealing effect

Info

Publication number: CN213451723U
Application number: CN202022275003.XU
Authority: CN
Inventors: 孙婷婷
Original assignee: Suzhou Suvalvar Pipeline Technology Co ltd
Current assignee: Suzhou Suvalvar Pipeline Technology Co ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-06-15
Anticipated expiration: 2030-10-14

Abstract

The utility model provides a bellows stop valve with good sealing effect, which relates to the field of bellows stop valves and comprises a valve body, two pieces of fixedly connected flanges of the valve body, a lower end cover is fixedly connected at the middle part of the top end of the valve body, a plurality of screws are connected at the lateral side of the lower end cover in a threaded manner, the top of the plurality of screws are connected with an upper end cover in a threaded manner, the bottom end of the lower end cover is mutually attached with the top end of the upper end cover, a fixed seat is fixedly connected at the top end of the upper end cover, a valve rod is rotatably connected inside the fixed seat, a hand wheel is fixedly connected at the top end of the valve rod, a lower base is connected at the bottom end of the valve rod in a threaded manner, a baffle is fixedly connected at the bottom end of the lower base, the sealing of a valve inner cavity is realized by the attachment of, the problem that a gap appears between the corrugated pipe assembly and the valve body due to vibration when the valve runs for a long time is solved.

Description

Bellows stop valve with good sealing effect

Technical Field

The utility model relates to a bellows stop valve technical field specifically is a sealed effectual bellows stop valve.

Background

The corrugated pipe stop valve is also called a corrugated pipe sealing stop valve, and is most suitable for pipelines of media such as steam, inflammable, explosive, heat conducting oil, high purity, toxic and the like.

When the corrugated pipe stop valve is installed on equipment and runs for a long time, looseness may occur between the corrugated pipe assembly and the valve body due to the influence of vibration, and a gap occurs between the corrugated pipe assembly and the valve body, so that medium leakage is caused.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model discloses a sealed effectual bellows stop valve to solve the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a sealed effectual bellows stop valve, including the valve body, two fixedly connected with flanges of valve body, the middle part fixedly connected with lower end cover on valve body top, the avris threaded connection of lower end cover has a plurality of screws, and is a plurality of the top threaded connection and the upper end cover of screw, the bottom of lower end cover and the top of upper end cover laminate each other, the top fixedly connected with fixing base of upper end cover, the inside of fixing base is rotated and is connected with the valve rod, the top fixedly connected with hand wheel of valve rod, the bottom of valve rod runs through the inside and threaded connection of upper end cover, lower end cover and valve body has the lower base, the bottom fixedly connected with baffle of lower base.

Preferably, the top of valve rod has cup jointed the steady piece, the both ends of steady piece and the inside both ends fixed connection of fixing base, the bottom cover of valve rod is equipped with the spring, the bottom of spring and the top fixed connection of lower base, the top of spring and the inside top of valve body laminate each other.

Preferably, the top end of the interior of the valve body is fixedly connected with an upper lug, the bottom end of the interior of the valve body is fixedly connected with a lower lug, and one ends of the upper lug and the lower lug are both fixedly provided with a clamping groove.

Preferably, the inside of valve rod rotates and is connected with the loop bar, the top fixedly connected with of loop bar changes the handle, the bottom of loop bar runs through the inside of lower base and is connected with the inside bottom rotation of baffle.

Preferably, the two sides inside the baffle are fixedly connected with supporting plates, the two sides of the two groups of supporting plates are movably connected with rack rods, the two groups of rack rods are arranged in parallel, one ends of the two groups of rack rods are fixedly connected with clamping blocks, and the outer walls of the clamping blocks are movably connected with the inner walls of the clamping grooves.

Preferably, one side of the rack bar is engaged with a gear, and the inside of the gear is fixedly sleeved with the outside of the sleeve bar.

The utility model discloses a sealed effectual bellows stop valve, its beneficial effect who possesses as follows:

1. the utility model discloses a through with last lug and lower lug opposite face set up to the L type, the laminating of the L type bellying of lug realizes valve inner chamber's sealed down with last lug at the baffle to at last lug and one side of lower lug is fixed and has been seted up the draw-in groove, the fixture block in the baffle stretches out and can close into the draw-in groove back, improve leakproofness and stability between bellows subassembly and valve body, when having solved bellows stop valve equipment and going up long time operation, because the influence of vibration appears becoming flexible and lead to the problem in gap between bellows subassembly and valve body.

2. The utility model discloses an utilization sets up drive mechanism inside the baffle, through at the inside loop bar that adds of valve rod, through the rotation drive gear operation of loop bar, the rotation of rethread gear drives drive mechanism's operation to realize that the fixture block stretches out from the baffle is inside, finally realize the block between fixture block and the draw-in groove.

Drawings

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

FIG. 2 is a schematic view of the overall cross-sectional structure of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

fig. 4 is the schematic diagram of the internal structure of the baffle of the present invention.

In the figure: 1. a valve body; 2. a flange; 3. a lower end cover; 4. an upper end cover; 5. a valve stem; 6. a hand wheel; 7. a fixed seat; 8. a stabilizing block; 9. a spring; 10. a loop bar; 11. an upper bump; 12. a lower bump; 13. a lower base; 14. a baffle plate; 15. a gear; 16. a clamping block; 17. a support plate; 18. a card slot; 19. a rack bar.

Detailed Description

The embodiment of the utility model discloses a bellows stop valve with good sealing effect, as shown in figures 1-4, comprising a valve body 1, two fixedly connected flanges 2 of the valve body 1, a lower end cover 3 fixedly connected to the middle part of the top end of the valve body 1, a plurality of screws connected to the lateral side threads of the lower end cover 3, a plurality of top threads connected to the upper end cover 4, the bottom end of the lower end cover 3 and the top end of the upper end cover 4 are mutually jointed, a fixing base 7 is fixedly connected to the top end of the upper end cover 4, a valve rod 5 is rotatably connected to the inside of the fixing base 7, a hand wheel 6 is fixedly connected to the top end of the valve rod 5, the bottom end of the valve rod 5 penetrates through the inside of the upper end cover 4, the lower end cover 3 and the valve body 1 and is connected to a lower base 13 by threads, a part of the bottom end of the valve rod 5 is located inside the, base 13 downstream under with this promotion, be provided with the sealing washer between valve rod 5 and the valve body 1, make

valve rod

5 and 1 junction leakproofness of valve body stronger, base 13's bottom fixedly connected with baffle 14 down, stabilizing block 8 has been cup jointed at valve rod 5's top, stabilizing block 8's both ends and the inside both ends fixed connection of fixing base 7, stabilizing block 8's setting has increased valve rod 5 stability when rotating, valve rod 5's bottom cover is equipped with spring 9, spring 9's bottom and base 13's top fixed connection down, spring 9's top and the inside top of valve body 1 are laminated each other.

Lug 11 on the inside top fixedly connected with of valve body 1, lug 12 under the inside bottom fixedly connected with of valve body 1, go up lug 11 and lower lug 12 relative one side and set up to the L type, the both sides and last lug 11 of baffle 14 bottom, the laminating of the bellying of lower lug 12 realizes the sealing of valve, go up lug 11 and the equal fixed draw-in groove 18 of having seted up of one end of lower lug 12, the inside rotation of valve rod 5 is connected with loop bar 10, the top fixedly connected with of loop bar 10 changes the handle, the bottom of loop bar 10 runs through the inside of lower base 13 and is connected with the inside bottom rotation of baffle 14.

Inside both sides fixedly connected with backup pad 17 of baffle 14, two side swing joint of two sets of backup pads 17 have rack bar 19, backup pad 17's setting makes the inside drive mechanism of baffle 14 more stable, parallel arrangement between two sets of rack bar 19, and the one end fixedly connected with fixture block 16 of two sets of rack bar 19, the outer wall of fixture block 16 and the inner wall swing joint of draw-in groove 18, the inner wall of draw-in groove 18 is provided with the sealing washer, block between fixture block 16 and the draw-in groove 18 makes baffle 14 and last lug 11 and the lower lug 12 between be connected inseparabler more stable, thereby make the leakproofness and the stability of whole valve obtain further improvement, one side meshing of rack bar 19 has gear 15, the inside of gear 15 cup joints with the external fixation of loop bar 10.

The working principle is as follows: when the valve needs to be closed and sealed, the hand wheel 6 is rotated anticlockwise, the connected valve rod 5 is driven to rotate under the rotation of the hand wheel 6, the thread between the bottom end of the valve rod 5 and the lower base 13 rotates, so that a part of the valve rod 5 in the lower base 13 rotates out, the lower base 13 is pushed to move downwards under the elastic force of the spring 9, the lower base 13 moves downwards to drive the baffle plate 14 connected with the bottom end to move downwards, the baffle plate 14 moves downwards until two sides of the bottom end are attached to the L-shaped protruding part between the upper convex block 11 and the lower convex block 12, then the loop bar 10 is rotated anticlockwise, the gear 15 fixedly sleeved at the bottom is driven to rotate under the rotation of the loop bar 10, the rack bar 19 connected with two sides in a meshed mode is driven to move towards the outside of the baffle plate 14 under the rotation of the gear 15, the fixture block 16 connected with one end is driven to move under the movement of the rack bar 19, and the rotation, the integral sealing of the bellows stop valve is realized at the moment.

When the valve needs to be opened, the loop bar 10 is rotated clockwise, the gear 15 to be determined rotates under the rotation of the loop bar 10, the rotation of the gear 15 drives the rack bar 19 which is meshed and connected and the fixture block 16 connected with one end of the rack bar 19 to move towards the inside of the baffle 14, the pile loop bar 10 is stopped after the fixture block 16 is completely moved out of the fixture groove 18, then the hand wheel 6 is rotated clockwise, the valve rod 5 is driven to rotate under the rotation of the hand wheel 6, a part of the bottom end of the valve rod 5 is rotated into the lower base 13, the spring force 9 is retracted under the stress, the lower base 13 moves upwards and drives the baffle 14 to be separated from the middle of the upper convex block 11 and the lower convex block 12, and the circulation.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a sealed effectual bellows stop valve, including valve body (1), its characterized in that: two fixedly connected with flanges (2) of valve body (1), middle part fixedly connected with lower end cover (3) on valve body (1) top, the avris threaded connection of lower end cover (3) has a plurality of screws, and is a plurality of the top threaded connection and the upper end cover (4) of screw, the bottom of lower end cover (3) is laminated with the top of upper end cover (4) each other, the top fixedly connected with fixing base (7) of upper end cover (4), the inside of fixing base (7) is rotated and is connected with valve rod (5), the top fixedly connected with hand wheel (6) of valve rod (5), the bottom of valve rod (5) runs through the inside and the threaded connection of upper end cover (4), lower end cover (3) and valve body (1) has lower base (13), the bottom fixedly connected with baffle (14) of lower base (13).

2. The bellows stop valve with good sealing effect according to claim 1, characterized in that: the top of valve rod (5) has cup jointed stabilizing block (8), the both ends of stabilizing block (8) and the inside both ends fixed connection of fixing base (7), the bottom cover of valve rod (5) is equipped with spring (9), the bottom of spring (9) and the top fixed connection of lower base (13), the top of spring (9) and the inside top of valve body (1) are laminated each other.

3. The bellows stop valve with good sealing effect according to claim 1, characterized in that: the improved valve is characterized in that the top end inside the valve body (1) is fixedly connected with an upper convex block (11), the bottom end inside the valve body (1) is fixedly connected with a lower convex block (12), and one ends of the upper convex block (11) and the lower convex block (12) are fixedly provided with a clamping groove (18).

4. The bellows stop valve with good sealing effect according to claim 1, characterized in that: the inside of valve rod (5) rotates and is connected with loop bar (10), the top fixedly connected with of loop bar (10) changes the handle, the bottom of loop bar (10) runs through the inside of lower base (13) and is connected with the inside bottom rotation of baffle (14).

5. The bellows stop valve with good sealing effect as claimed in claim 4, wherein: the supporting plates (17) are fixedly connected to two sides of the inner portion of the baffle (14), rack rods (19) are movably connected to two sides of the two groups of supporting plates (17), the two groups of rack rods (19) are arranged in parallel, clamping blocks (16) are fixedly connected to one ends of the two groups of rack rods (19), and the outer walls of the clamping blocks (16) are movably connected with the inner walls of the clamping grooves (18).

6. A bellows stop valve that sealed effectual according to claim 5, characterized by: one side of the rack rod (19) is meshed with a gear (15), and the inside of the gear (15) is fixedly sleeved with the outside of the loop bar (10).