CN214838789U

CN214838789U - Double-sealing ball valve

Info

Publication number: CN214838789U
Application number: CN202121540451.6U
Authority: CN
Inventors: 李东洲; 李斌; 李浩霆; 刘奎
Original assignee: Chengdu Weideng Valve Technology Co ltd
Current assignee: Chengdu Weideng Valve Technology Co ltd
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2021-11-23
Anticipated expiration: 2031-07-07

Abstract

The utility model relates to a ball valve technical field, and a double sealing's ball valve is disclosed, including last casing, lower casing and inlet tube, go up the casing and pass through flange fixed connection with lower casing, the inlet tube passes through the top of flange fixed mounting casing under, and the output of inlet tube stretches into the intracavity of casing under, the intracavity activity block of inferior valve intracavity has piston A, the intracavity activity block of going up the casing has piston B, piston B's bottom fixed mounting has vertical stroke pole down, and the bottom activity of stroke pole runs through the bottom wall of casing, the bottom fixed mounting of stroke pole has the buoyancy ball. This double sealing's ball valve, the utility model discloses a sealed post and sealed arch have realized when the water level rises, and sealed arch can insert into the water pipe under the impetus of sealed post in, and sealed arch is the state that the diameter reduces gradually from the top down, then sealed protruding sealed block that can be better is in the water pipe, has improved the utility model discloses ball-cock assembly's sealed efficiency.

Description

Double-sealing ball valve

Technical Field

The utility model relates to a ball valve technical field especially relates to a double seal's ball valve.

Background

The float valve is widely applied to the fields of water level control, water level detection and the like, and aims to achieve the purpose of water level control. Retrieved application number 201921368523.6 discloses a float valve comprising a first housing, a second housing movably connected to the first housing; the first shell is connected with a water inlet pipe, an upper cavity is arranged inside the first shell, a first piston is arranged in the upper cavity, and a water outlet is formed in the side wall of the upper cavity; the inner part of the second shell is provided with a lower cavity, a second piston is arranged in the lower cavity, and a floating ball is arranged on the lower end face of the second piston.

However, the inventor finds that the technical scheme still has at least the following defects:

the output that the technique of prior art goes into sealed block through the arch on the first piston to the inlet tube, but this single sealed effect is relatively poor, and the arch is in the process back in addition for a long time, and the arch can produce continuous friction with the inlet tube, leads to the sealed effect variation scheduling problem to the inlet tube. To this end, we propose a double-sealing ball valve.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the technical problem that above-mentioned prior art exists, provide a double seal's ball valve.

In order to achieve the above object, the present invention adopts the following technical scheme, a double-sealed ball valve, comprising an upper casing, a lower casing and a water inlet pipe, wherein the upper casing and the lower casing are fixedly connected through a flange, the water inlet pipe is fixedly installed at the top of the lower casing through the flange, the output end of the water inlet pipe extends into the cavity of the lower casing, a piston A is movably clamped in the cavity of the lower casing, a piston B is movably clamped in the cavity of the upper casing, a stroke rod vertically downwards is fixedly installed at the bottom of the piston B, the bottom end of the stroke rod movably penetrates through the bottom wall surface of the upper casing, a buoyancy ball is fixedly installed at the bottom end of the stroke rod, a sealing column is fixedly installed at the top of the piston A, a sealing bulge is fixedly installed at the top of the sealing column, an annular lower sealing plate is fixedly installed on the outer wall of the sealing column, an upper sealing plate is arranged on the outer wall of the output end of the water inlet pipe, the upper sealing plate is annular, and the outer wall diameter size of upper seal plate and lower seal plate is the same, be provided with wire rope between the left and right sides at piston A top and the top wall of the one side that the upper seal plate corresponds, the bottom fixed mounting of upper seal plate has sealed the pad, sealed pad is the annular, annular cooperation groove has been seted up to sealed bottom of pad, cooperation inslot fixed mounting has evenly distributed's permanent magnet B, the annular top fixed mounting of lower seal plate has permanent magnet A, and permanent magnet A is opposite with permanent magnet B's magnetic pole.

Preferably, hydraulic oil is filled between the piston B and the piston A.

Preferably, the sealing protrusion has a diameter gradually decreasing from top to bottom.

Preferably, two sets of sliding rods are fixedly mounted on the annular inner wall of the upper sealing plate, and the two sets of sliding rods are in a mutually symmetrical state.

Preferably, the outer wall of the water inlet pipe is provided with a sliding chute in which two sliding rods are clamped with each other.

Preferably, the bottom end and the top end of the steel wire rope are respectively fixedly connected to the top wall surface of the piston A and the top wall surface of the upper sealing plate, two groups of pulleys are respectively installed on the left side wall surface and the right side wall surface of the top of the lower casing cavity, and the outer walls of the two steel wire ropes respectively and movably slide over the two corresponding groups of pulleys.

Advantageous effects

The utility model provides a double sealing's ball valve. The method has the following beneficial effects:

(1) this double sealing's ball valve, the utility model discloses a sealed post and sealed arch have realized when the water level rises, and sealed arch can insert into the water pipe under sealed post's impetus, and sealed arch is the state that from the top down diameter reduces gradually, then sealed protruding sealed block that can be better is in the water pipe, has improved the utility model discloses ball-cock assembly's sealed efficiency.

(2) This double sealing's ball valve, the utility model discloses a set up upper seal plate, sealed pad and lower seal plate, along with sealed arch inserts the in-process of inlet tube inner wall, the pulling force effect to the upper seal plate through wire rope has been cancelled in the time of lower seal plate up-moving, then makes upper seal plate and sealed pad down-moving, sealed pad and lower seal plate are in the state of sealed laminating at last, then further improved the utility model discloses the sealed efficiency of ball valve reaches after the water level reaches the certain degree, realizes double sealing's purpose.

(3) This double sealing's ball valve, the utility model discloses a set up cooperation groove, permanent magnet B and permanent magnet A, when sealed pad is in the laminating with lower closing plate, under permanent magnet B and permanent magnet A's magnetic pole attraction effect, then make sealed pad and the inseparable laminating that lower closing plate can be further, then further improved the utility model discloses the sealed efficiency of ball valve.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the point B in FIG. 2 according to the present invention;

FIG. 4 is a perspective view of the sealing protrusion of the present invention;

fig. 5 is a perspective view of the upper sealing plate of the present invention.

Illustration of the drawings:

1. an upper housing; 11. a lower housing; 12. a water inlet pipe; 13. a drain hole; 14. a piston A; 15. a piston B; 16. hydraulic oil; 17. a trip lever; 18. a buoyant ball; 19. sealing the column; 2. sealing the protrusion; 21. a lower sealing plate; 22. a permanent magnet A; 23. an upper sealing plate; 24. a slide bar; 25. a chute; 26. a wire rope; 27. a gasket; 28. a mating groove; 29. and a permanent magnet B.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): a double-sealing ball valve is disclosed, as shown in figures 1-5, comprising an upper casing 1, a lower casing 11 and a water inlet pipe 12, wherein the upper casing 1 and the lower casing 11 are fixedly connected through a flange, the water inlet pipe 12 is fixedly installed on the top of the lower casing 11 through a flange, the output end of the water inlet pipe 12 extends into the cavity of the lower casing 11, a piston A14 is movably clamped in the cavity of the lower casing 11, a piston B15 is movably clamped in the cavity of the upper casing 1, hydraulic oil 16 is filled between the piston B15 and the piston A14, a stroke rod 17 which faces vertically downwards is fixedly installed at the bottom of the piston B15, the bottom end of the stroke rod 17 movably penetrates through the bottom wall surface of the upper casing 1, a buoyancy ball 18 is fixedly installed at the bottom of the stroke rod 17, a sealing column 19 is fixedly installed at the top of the piston A14, a sealing bulge 2 is fixedly installed at the top of the sealing column 19, the sealing bulge 2 is in a state that the diameter is gradually reduced from top to bottom, the outer wall fixed mounting of sealed post 19 has annular lower closing plate 21, the output outer wall of inlet tube 12 is provided with upper sealing plate 23, upper sealing plate 23 is the annular, and upper sealing plate 23 is the same with the outer wall diameter size of lower closing plate 21, the bottom fixed mounting of upper sealing plate 23 has annular sealed pad 27, annular cooperation groove 28 has been seted up to sealed pad 27's bottom, fixed mounting has evenly distributed's permanent magnet B29 in cooperation groove 28, the annular top fixed mounting of lower closing plate 21 has permanent magnet A22, and permanent magnet A22 is opposite with the magnetic pole of permanent magnet B29, the annular inner wall fixed mounting of upper sealing plate 23 has two sets of slide bars 24 that are mutual symmetric state, the spout 25 of two slide bar 24 mutual block has been seted up to the outer wall of inlet tube 12, be provided with wire rope 26 between the left and right sides at piston A14 top and the top wall that upper sealing plate 23 corresponds one side, wire rope 26's bottom and top are fixed connection respectively at the top wall of piston A14 and the top wall of upper sealing plate 23 On the upper surface, two groups of pulleys are respectively arranged on the left side wall surface and the right side wall surface of the top part in the cavity of the lower shell 11, and the outer walls of the two steel wire ropes 26 respectively and movably slide through the two corresponding groups of pulleys.

The utility model discloses a theory of operation: when the water level drops, the buoyancy ball 18 drives the stroke rod 17 to move downwards, the hydraulic oil 16 between the piston A14 and the piston B15 moves downwards, the piston A14 moves downwards, the piston A14 drives the sealing column 19 and the sealing bulge 2 to move downwards, the sealing bulge 2 is pulled out from the cavity of the water inlet pipe 12, water is injected into the cavity of the lower shell 11 through the water inlet pipe 12, water is discharged through the water outlet hole 13, automatic water adding is realized, when the water level rises to a certain degree, the buoyancy ball 18 drives the stroke rod 17 to push the piston B15 under the action of buoyancy, the piston B15 pushes the hydraulic oil 16, the hydraulic oil 16 pushes the piston A14 again, the piston A14 drives the sealing column 19 and the sealing bulge 2 to move upwards, the sealing bulge 2 is inserted into the water inlet pipe 12, sealing of the sealing bulge 2 is realized, when the sealing bulge 2 is inserted into the water inlet pipe 12, the lower sealing plate 21 moves upwards, and simultaneously the tensile force of the upper sealing plate 23 through the steel wire rope 26 is cancelled, then make upper seal plate 23 and sealed pad 27 move down, lower seal plate 21 is close to at last with sealed pad 27, under the magnetic pole attraction effect of permanent magnet A22 and permanent magnet B29, make sealed pad 27 be in inseparable laminating state with lower seal plate 21, sealed protruding 2 is the state that the diameter reduces gradually from the top down simultaneously, then sealed block that sealed protruding 2 can be better is in inlet tube 12.

The utility model realizes that when the water level rises, the sealing bulge 2 can be inserted into the water inlet pipe 12 under the pushing action of the sealing column 19, the sealing bulge 2 is in the state that the diameter is gradually reduced from top to bottom, and the sealing bulge 2 can be better sealed and clamped in the water inlet pipe 12, thereby improving the sealing efficiency of the floating ball valve of the utility model, by arranging the upper sealing plate 23, the sealing gasket 27 and the lower sealing plate 21, in the process that the sealing bulge 2 is inserted into the inner wall of the water inlet pipe 12, the lower sealing plate 21 moves upwards while canceling the pulling force effect on the upper sealing plate 23 through the steel wire rope 26, so that the upper sealing plate 23 and the sealing gasket 27 move downwards, and the sealing gasket 27 and the lower sealing plate 21 are in the state of sealing and laminating at last, thereby further improving the sealing efficiency of the ball valve of the utility model, after the water level reaches a certain degree, realize double seal's purpose, the utility model discloses a set up cooperation groove 28, permanent magnet B29 and permanent magnet A22, when sealed pad 27 is in the laminating with lower closing plate 21, under permanent magnet B29 and permanent magnet A22's magnetic pole attraction effect, make sealed pad 27 and lower closing plate 21 can further closely laminate, then further improved the utility model discloses the sealed efficiency of ball valve.

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 double sealing's ball valve, includes upper housing (1), lower housing (11) and inlet tube (12), its characterized in that: go up casing (1) and casing (11) down and pass through flange fixed connection, inlet tube (12) pass through flange fixed mounting at the top of casing (11) down, and the output of inlet tube (12) stretches into the intracavity of casing (11) down, casing (11) intracavity activity block has piston A (14) down, the intracavity activity block of going up casing (1) has piston B (15), it has hydraulic oil (16) to fill between piston B (15) and piston A (14), the bottom fixed mounting of piston B (15) has vertical stroke pole (17) down, and the bottom activity of stroke pole (17) runs through the bottom wall of casing (1), the bottom fixed mounting of stroke pole (17) has buoyancy ball (18), the top fixed mounting of piston A (14) has sealing column (19), the top fixed mounting of sealing column (19) has sealing bulge (2), sealing bulge (2) are the state that the diameter reduces gradually from top to bottom, the outer wall fixed mounting of sealed post (19) has annular lower seal plate (21), and the output outer wall of inlet tube (12) is provided with upper seal plate (23), and upper seal plate (23) are the annular, and upper seal plate (23) are the same with the outer wall diameter size of lower seal plate (21), are provided with wire rope (26) between the top wall that the left and right sides at piston A (14) top and upper seal plate (23) correspond one side.

2. A double-sealed ball valve according to claim 1, wherein: the bottom of the upper sealing plate (23) is fixedly provided with a sealing gasket (27), and the sealing gasket (27) is annular.

3. A double-sealed ball valve according to claim 2, wherein: annular cooperation groove (28) have been seted up to the bottom of sealed pad (27), and evenly distributed's permanent magnet B (29) is fixed mounting in cooperation groove (28).

4. A double-sealed ball valve according to claim 1, wherein: and the annular top of the lower sealing plate (21) is fixedly provided with a permanent magnet A (22), and the magnetic poles of the permanent magnet A (22) and the permanent magnet B (29) are opposite.

5. A double-sealed ball valve according to claim 1, wherein: two groups of sliding rods (24) which are mutually symmetrical are fixedly arranged on the annular inner wall of the upper sealing plate (23), and a sliding groove (25) for mutually clamping the two sliding rods (24) is formed in the outer wall of the water inlet pipe (12).

6. A double-sealed ball valve according to claim 1, wherein: the bottom end and the top end of the steel wire rope (26) are respectively and fixedly connected to the top wall surface of the piston A (14) and the top wall surface of the upper sealing plate (23), two groups of pulleys are respectively installed on the left side wall surface and the right side wall surface of the top in the cavity of the lower shell (11), and the outer walls of the two steel wire ropes (26) respectively and movably slide through the two corresponding groups of pulleys.