CN112253765A

CN112253765A - Stop valve and connecting pipe assembly for connecting stop valve and pipeline

Info

Publication number: CN112253765A
Application number: CN202011121501.7A
Authority: CN
Inventors: 陈春健; 陈志文
Original assignee: China Valve Holdings Group Co ltd
Current assignee: China Valve Holdings Group Co ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-01-22

Abstract

The invention belongs to the field of pipeline valves, and particularly relates to a stop valve and a connecting pipe assembly for connecting the stop valve with a pipeline. This stop valve and pipe connection's connecting pipe subassembly, can utilize to rotate the swing handle and pass through the threaded rod and drive the spiral shell valve clack and rotate and reciprocate, and then can make spiral shell valve clack threaded connection in the inboard of sealing washer, when the rubber sleeve receives spacing bulge loop resistance stop moving, the spiral shell valve clack is still constantly to the downstream, and then can oppress the rubber sleeve and make its and its inboard elasticity preforming take place deformation, and then be convenient for increase the leakproofness when spiral shell valve clack and sealing washer threaded connection, the leakproofness is relatively poor when having solved current device threaded connection and still the condition emergence of leaking when leading to this stop valve to close.

Description

Stop valve and connecting pipe assembly for connecting stop valve and pipeline

Technical Field

The invention relates to the field of pipeline valves, in particular to a stop valve and a connecting pipe assembly for connecting the stop valve with a pipeline.

Background

The shut-off valve is also called a shut-off valve, and belongs to a forced sealing type valve, so when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak. When the medium enters the valve from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force between the valve rod and the packing and the thrust generated by the pressure of the medium, the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise the failure of the valve rod buckling can occur.

The existing stop valve is short of the spiral valve clack and the sealing ring below the clack, so that the space orientation of the valve body is influenced by the sealing performance, great inconvenience is brought to the use, the sealing performance of the general stop valve can be realized only by the horizontal and vertical direction, the sealing performance of the stop valve is poor, and the water leakage condition is easy to occur when the stop valve is closed.

In order to solve the problems, the application provides a stop valve and a connecting pipe assembly for connecting the stop valve and a pipeline.

Disclosure of Invention

Objects of the invention

In order to solve the technical problems in the background art, the invention provides a stop valve and a connecting pipe assembly for connecting the stop valve and a pipeline, which have the characteristics of good sealing performance and convenience in disassembly and assembly.

(II) technical scheme

In order to solve the technical problems, the invention provides a stop valve and a connecting pipe assembly for connecting the stop valve with a pipeline, which comprises a main valve body, wherein the top of the main valve body is fixedly provided with a bottom plate, the two sides of the main valve body are respectively and fixedly provided with a left valve pipe and a right valve pipe, the inner wall of the main valve body is fixedly provided with a first cross section and a second cross section which are connected, the first cross section and the second cross section divide an inner cavity of the main valve body into a water inlet cavity and a water discharge cavity, the outer walls of the first cross section and the second cross section are fixedly sleeved with a sealing ring, the inner wall of the sealing ring is in threaded connection with a spiral valve clack, the inner wall of the sealing ring is fixedly provided with a limiting convex ring, the bottom of the spiral valve clack is fixedly provided with a rubber sleeve which is in direct contact with the limiting convex ring, the top of the spiral valve clack is, the top fixed mounting of mounting panel has an assembly spare, and the inboard of assembly spare is provided with the screw thread section of thick bamboo with threaded rod looks adaptation, the outside of left side valve pipe and right valve pipe is provided with left connecting pipe and right connecting pipe respectively, the inner wall of left side connecting pipe and right connecting pipe is fixed to be cup jointed and is connect the pipe fitting, the draw-in groove has been seted up to the outer wall of left side connecting pipe, the inboard fixed mounting of left side connecting pipe has outer spiral shell section of thick bamboo, the outer wall fixed mounting who connects the pipe fitting has a connecting cylinder, the inboard that connects the pipe fitting is provided with the interior spiral shell section of thick bamboo with outer spiral shell looks adaptation, the outer wall that connects the pipe fitting is provided with the ejector pin.

Preferably, the rubber sleeve is a hollow rubber sleeve, and an elastic pressing sheet is arranged on the inner side of the rubber sleeve.

Preferably, the radius of the limiting convex ring is two thirds of the radius of the rubber sleeve.

Preferably, the outer wall of the pipe connecting piece is provided with a slotted hole, and the inner side of the slotted hole is movably sleeved with a mandril.

Preferably, the inner sides of the left valve pipe and the right valve pipe are respectively provided with a left filter element and a right filter element.

Preferably, the outside of threaded rod is provided with expanding spring, expanding spring's top and bottom fixed connection are respectively on the bottom of bottom plate and the top surface of spiral shell valve clack, and expanding spring's the outside is provided with the telescopic rubber area.

Preferably, the inner sides of the bottom plate and the mounting plate are provided with mounting holes in opposite positions, and the inner sides of the mounting holes are provided with fastening screws.

Preferably, a fastening rod is fixedly mounted at the top of the fastening screw, a positioning plate is fixedly sleeved on the outer wall of the fastening rod, and a threaded rod positioned above the assembly part is fixedly sleeved on the inner side of the positioning plate.

Preferably, the spiral valve flap is a hollow valve flap, and the spiral valve flap is cylindrical.

Preferably, the rotating handle is annular, the outer wall of the rotating handle is fixedly sleeved with the rotating sleeve, and six connecting rods are arranged on the inner side of the rotating handle.

Preferably, four draw-in grooves relative in position are seted up to the outer wall of left side connecting pipe, the inboard of left side connecting pipe is provided with the fixture block, the fixture block is trapezoidal, the lateral wall of fixture block is smooth inclined plane, and the inclination on inclined plane is sixty degrees.

The technical scheme of the invention has the following beneficial technical effects:

1. through the setting of first cross-section and second cross-section outer wall sealing washer, can utilize to rotate the swing handle and pass through the threaded rod and drive the spiral shell valve clack and rotate and reciprocate, and then can make spiral shell valve clack threaded connection in the inboard of sealing washer, the rubber sleeve of spiral shell valve clack bottom surface can with the spacing bulge loop direct contact of sealing washer inner wall simultaneously, when the rubber sleeve receives spacing bulge loop resistance stop movement, the spiral shell valve clack constantly moves down still, and then can oppress the rubber sleeve and make its and its inboard elasticity preforming take place deformation, and then can increase the area of contact of rubber sleeve and sealing washer inner wall, and then be convenient for increase the leakproofness when spiral shell valve clack and sealing washer threaded connection, the leakproofness is relatively poor when having solved current device threaded connection and still leaks when leading to this stop valve to close the condition emergence.

2. Through the setting of left connecting pipe and pipe fitting, can carry out fixed connection through the connecting cylinder of pipe fitting outer wall and pipeline, and simultaneously, carry out fixed connection to left connecting pipe and pipe fitting through rotatory outer spiral shell section of thick bamboo and interior spiral shell section of thick bamboo, the setting of fixture block can carry out the joint with the draw-in groove on the left connecting pipe outer wall automatically on the cooperation goes up the pipe fitting outer wall, and then reach the effect of prescribing a limit to left connecting pipe and pipe fitting position, be convenient for assemble between left connecting pipe and the pipe fitting, and then be convenient for connect and dismantle between the main valve body and the pipeline, the problem of current device be difficult to and carry out the dismouting between the pipeline is solved.

3. The setting through the inboard left filter core of main valve body and right filter core can filter the inboard fluid that passes through of the device, be convenient for purify the quality of water of carrying, the setting of set screw is convenient for dismantle mounting panel and bottom plate under the condition of not dismantling whole device on the cooperation, and then be convenient for maintain the spiral shell valve clack or regularly change left filter core and right filter core, moreover, the power that staff was applyed when opening and close is convenient for save in setting up of threaded rod outside expanding spring, and the setting of expanding spring outside rubber tape is convenient for protect the threaded rod, avoid expanding spring and threaded rod to appear with the long-time direct contact of water and lead to it to rust fast and the condition of low life-span.

Drawings

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

FIG. 2 is a schematic structural diagram of a connecting tube according to the present invention;

FIG. 3 is a side view of the connecting tube of the present invention;

FIG. 4 is a schematic view of the adapter of the present invention;

FIG. 5 is a schematic structural view of a seal ring according to the present invention;

FIG. 6 is a schematic structural view of an assembly of the present invention;

FIG. 7 is a schematic view of the construction of the spiral valve flap of the present invention;

FIG. 8 is an enlarged schematic view of the structure of FIG. 1 at A.

Reference numerals:

in the figure: 1. a main valve body; 2. a water inlet cavity; 3. a left valve tube; 4. a left connecting pipe; 41. a card slot; 42. an outer barrel; 5. a left filter element; 6. a first cross-section; 7. a base plate; 8. fastening screws; 9. a fastening rod; 10. turning a handle; 11. positioning a plate; 12. an assembly member; 13. a tension spring; 14. a threaded rod; 15. a rubber belt; 16. a spiral valve flap; 17. a drainage cavity; 18. a right filter element; 19. a second cross-section; 20. a right valve tube; 21. a right connecting pipe; 22. a pipe connecting piece; 221. a clamping block; 222. a connecting cylinder; 223. a top rod; 224. a return spring; 225. an inner screw cylinder; 23. a seal ring; 24. a limit convex ring; 25. a threaded barrel; 26. elastic tabletting; 27. a rubber sleeve; 28. and (7) mounting the plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in figures 1-8, the invention provides a stop valve and a connecting pipe assembly for connecting the stop valve with a pipeline, comprising a main valve body 1, a bottom plate 7 is fixedly arranged at the top of the main valve body 1, a left valve pipe 3 and a right valve pipe 20 are respectively fixedly arranged at two sides of the main valve body 1, a first section 6 and a second section 19 which are connected are fixedly arranged on the inner wall of the main valve body 1, the inner cavity of the main valve body 1 is divided into a water inlet cavity 2 and a water discharge cavity 17 by the first section 6 and the second section 19, a sealing ring 23 is fixedly sleeved on the outer wall of the first section 6 and the second section 19, a spiral valve flap 16 is connected with the inner wall of the sealing ring 23 in a threaded manner, a limit convex ring 24 is fixedly arranged on the inner wall of the sealing ring 23, a rubber sleeve 27 which is directly contacted with the limit convex ring 24 is fixedly arranged at the bottom of the spiral valve flap 16, a threaded, the top of the main valve body 1 is provided with a mounting plate 28 which contacts with the bottom plate 7, the top of the mounting plate 28 is fixedly provided with an assembly part 12, the inner side of the assembly part 12 is provided with a threaded cylinder 25 matched with the threaded rod 14, the outer sides of the left valve pipe 3 and the right valve pipe 20 are respectively provided with a left connecting pipe 4 and a right connecting pipe 21, the inner walls of the left connecting pipe 4 and the right connecting pipe 21 are fixedly sleeved with a connecting pipe fitting 22, the outer wall of the left connecting pipe 4 is provided with a clamping groove 41, the inner side of the left connecting pipe 4 is fixedly provided with an outer threaded cylinder 42, the outer wall of the connecting pipe fitting 22 is fixedly provided with a connecting cylinder 222, the inner side of the connecting pipe fitting 22 is provided with an inner threaded cylinder 225 matched with the outer threaded cylinder 42, the outer wall of the connecting pipe fitting 22 is.

In this embodiment, it should be noted that the rubber sleeve 27 is a hollow rubber sleeve, and the elastic pressing sheet 26 is disposed inside the rubber sleeve 27; the setting of the hollow rubber sleeve of rubber sleeve 27 is convenient for place elasticity preforming 26, and the setting of elasticity preforming 26 is convenient for apply for 27 an outside power that stretches of rubber sleeve from inside when rubber sleeve 27 receives external force extrusion, and then the rubber sleeve 27 of being convenient for fully contacts with the inner wall of sealing washer 23, and then can effectively increase the leakproofness when spiral shell valve clack 16 is connected with sealing washer 23, avoid current device when closing because the leakproofness is relatively poor and lead to the condition that leaks to appear in this stop valve.

In this embodiment, it should be noted that the radius of the limit convex ring 24 is two thirds of the radius of the rubber sleeve 27; when spiral shell valve clack 16 is rotatory removal downwards, the setting of

spacing bulge loop

24 and 27 radius sizes of rubber sleeve is convenient for spacing bulge loop 24 and is applyed the resistance to rubber sleeve 27, and then the rubber sleeve 27 of being convenient for is exerted pressure along with spiral shell valve clack 16 extrusion and is deformed to reach the effect that increases spiral shell valve clack 16 and sealing washer 23 connection leakproofness, solved the relatively poor and easy problem of leaking water of leakproofness when current device connects.

In this embodiment, it should be noted that the outer wall of the pipe connecting member 22 is provided with a slot, and the inner side of the slot is movably sleeved with a top rod 223; when left connecting pipe 4 cup jointed with pipe connection 22, the setting of slotted hole can make ejector pin 223 take a round trip to twitch in the slotted hole inboard along with outside pressure, cup joint to the joint position when left connecting pipe 4 cup joints with pipe connection 22, reset spring 224 can extend automatically, and then the automatic joint of drive fixture block 221 is in the inboard of draw-in groove 41, be convenient for prescribe a limit to the position of left connecting pipe 4 and pipe connection 22, solved current device be difficult to and the pipeline between carry out fixed connection's problem.

In this embodiment, it should be noted that the left filter element 5 and the right filter element 18 are respectively disposed inside the left valve pipe 3 and the right valve pipe 20; the arrangement of the left filter element 5 and the right filter element 18 is convenient for filtering water circulating in the stop valve, and further the effect of purifying the flowing water can be achieved.

In the embodiment, it should be noted that the outside of the threaded rod 14 is provided with a telescopic spring 13, the top end and the bottom end of the telescopic spring 13 are respectively and fixedly connected to the bottom of the bottom plate 7 and the top surface of the spiral valve flap 16, and the outside of the telescopic spring 13 is provided with a telescopic rubber belt 15; the setting of expanding spring 13 can save the rotatory swing handle 10 of staff and control the power that applys to spiral shell valve clack 16, and the setting of expanding spring 13 outside rubber tape 15 can protect expanding spring 13 and threaded rod 14, avoids threaded rod 14 and expanding spring 13 to contact with water for a long time and lead to its easy rust and the lower condition of life-span to take place.

In this embodiment, it should be noted that the mounting structure is characterized in that mounting holes with opposite positions are formed on the inner sides of the bottom plate 7 and the mounting plate 28, and fastening screws 8 are arranged on the inner sides of the mounting holes; the setting of fastening screw 8 is convenient for dismantle bottom plate 7 and mounting panel 28, and then is convenient for maintain and regularly change the inboard left filter core 5 of main valve body 1, right filter core 18 and spiral shell valve clack 16 under the circumstances that does not dismantle stop valve and pipeline.

In this embodiment, it should be noted that a fastening rod 9 is fixedly installed at the top of the fastening screw 8, a positioning plate 11 is fixedly sleeved on the outer wall of the fastening rod 9, and a threaded rod 14 located above the assembly member 12 is fixedly sleeved on the inner side of the positioning plate 11; the positioning plate 11 is arranged to define the position of the threaded rod 14 and the rotary handle 10, and the stability of the device is improved.

In this embodiment, it should be noted that the spiral valve flap 16 is a hollow valve flap, and the spiral valve flap 16 is cylindrical; the arrangement of the hollow valve clack 16 can effectively reduce the balance weight of the valve clack 16, and further the position of the valve clack 16 can be conveniently adjusted through the rotary handle 10 and the threaded rod 14.

In this embodiment, it should be noted that the rotating handle 10 is annular, the outer wall of the rotating handle 10 is fixedly sleeved with a rotating sleeve, and six connecting rods are arranged on the inner side of the rotating handle 10; the friction between the device and the staff can be increased to the setting of commentaries on classics cover, and the staff of being convenient for rotates swing handle 10, and the setting of six connecting rods has increased swing handle 10's fastness.

In this embodiment, it should be noted that four opposite clamping grooves 41 are formed in the outer wall of the left connecting pipe 4, a clamping block 221 is arranged on the inner side of the left connecting pipe 4, the clamping block 221 is trapezoidal, the side wall of the clamping block 221 is a smooth inclined surface, and the inclination angle of the inclined surface is sixty degrees; the smooth and sixty degree angled arrangement of the latch 221 facilitates removal of the left connector 4 and the adapter 22 by rotating the adapter 22.

The working principle and the using process of the invention are as follows: when the device is installed, the pipe fitting 22 on the outer wall of the pipe fitting 22 is fixedly connected with a pipeline, then the pipe fitting 22 is rotated to be sleeved with the left connecting pipe 4, after the fixture block 221 on the outer wall of the pipe fitting 22 is automatically clamped with the clamping groove 41 on the side wall of the left connecting pipe 4, the installation process can be completed, when a valve needs to be closed, only the rotary handle 10 is rotated to drive the spiral valve flap 16 to be in threaded connection with the sealing ring 23 through the threaded rod 14, meanwhile, the rubber sleeve 27 on the bottom surface of the spiral valve flap 16 is downwards moved under the pressure, when the rubber sleeve 27 is contacted with the limiting convex ring 24, the spiral valve flap 16 still downwards moves, at the moment, the rubber sleeve 27 and the elastic pressing sheet 26 on the inner side of the rubber sleeve are deformed under the pressure, and the effect of improving the sealing performance when the spiral valve flap 16 and the sealing ring 23 are sleeved is achieved, when the device needs, only the mounting plate 28 and the bottom plate 7 need to be disassembled, and all components on the inner side of the main valve body 1 are taken out from the top surface of the main valve body 1 to be disassembled and correspondingly maintained and replaced.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides a stop valve and pipe connection's connecting pipe subassembly, its characterized in that, includes the main valve body (1), the top fixed mounting of the main valve body (1) has bottom plate (7), the both sides of the main valve body (1) respectively fixed mounting have left valve pipe (3) and right valve pipe (20), the inner wall fixed mounting of the main valve body (1) has first cross-section (6) and second cross-section (19) that are connected, and first cross-section (6) and second cross-section (19) separate the main valve body (1) inner chamber for intake chamber (2) and drainage chamber (17), sealing washer (23) have been cup jointed to the outer wall fixed of first cross-section (6) and second cross-section (19), the inner wall threaded connection of sealing washer (23) has valve clack spiral shell (16), the inner wall fixed mounting of sealing washer (23) has spacing bulge loop (24), and the bottom fixed mounting of spiral shell (16) has rubber sleeve (27) with spacing bulge loop (24) direct contact, the top fixedly connected with threaded rod (14) of spiral shell valve (16), the fixed cover in top of threaded rod (14) is equipped with swing handle (10), the top of the main valve body (1) is provided with mounting panel (28) that contacts with bottom plate (7), the top fixed mounting of mounting panel (28) has built-up piece (12), and the inboard of built-up piece (12) is provided with a screw thread section of thick bamboo (25) with threaded rod (14) looks adaptation, the outside of left valve pipe (3) and right valve pipe (20) is provided with left connecting pipe (4) and right connecting pipe (21) respectively, the inner wall fixed cup joint of left connecting pipe (4) and right connecting pipe (21) has connecting pipe spare (22), draw-in groove (41) have been seted up to the outer wall of left connecting pipe (4), the inboard fixed mounting of left connecting pipe (4) has outer screw thread section of thick bamboo (42), the outer wall fixed mounting of connecting pipe spare (, the inner side of the pipe connecting piece (22) is provided with an inner screw barrel (225) matched with the outer screw barrel (42), the outer wall of the pipe connecting piece (22) is provided with an ejector rod (223), the outer side of the ejector rod (223) is provided with a return spring (224), and the outer end of the ejector rod (223) is fixedly connected with a clamping block (221).

2. A stop valve and its pipe connection assembly according to claim 1, characterized in that the rubber sleeve (27) is a hollow rubber sleeve, and the rubber sleeve (27) is provided with an elastic pressing piece (26) on the inner side.

3. A stop valve and pipe connection coupling assembly according to claim 1, wherein the radius of said stop collar (24) is two thirds of the radius of the rubber sleeve (27).

4. The stop valve and the pipe connecting component for connecting the stop valve and the pipeline according to claim 1, wherein the outer wall of the pipe connecting component (22) is provided with a slotted hole, and the inner side of the slotted hole is movably sleeved with a mandril (223).

5. A stop valve and pipe connection assembly according to claim 1, characterized in that the left and right valve pipes (3, 20) are provided with a left and right filter element (5, 18) on the inside, respectively.

6. A stop valve and its pipe connection assembly according to claim 1, characterized in that the threaded rod (14) is provided with a telescopic spring (13) on its outside, the top and bottom ends of the telescopic spring (13) are fixedly connected to the bottom of the bottom plate (7) and the top surface of the spiral valve flap (16), respectively, and the telescopic spring (13) is provided with a telescopic rubber band (15) on its outside.

7. A stop valve and pipe connecting assembly for a stop valve and a pipe according to claim 1, wherein the base plate (7) and the mounting plate (28) are provided with mounting holes at opposite positions on the inner sides, and the fastening screws (8) are arranged on the inner sides of the mounting holes.

8. A stop valve and a pipe connecting assembly of the stop valve and a pipeline according to claim 7, wherein a fastening rod (9) is fixedly installed at the top of the fastening screw (8), a positioning plate (11) is fixedly sleeved on the outer wall of the fastening rod (9), and a threaded rod (14) positioned above the assembly part (12) is fixedly sleeved on the inner side of the positioning plate (11).

9. A stop valve and pipe connection assembly according to claim 1, said spiral valve flap (16) being a hollow valve flap and said spiral valve flap (16) being cylindrical.

10. The stop valve and the pipe connecting component for connecting the stop valve and a pipe according to claim 1, wherein the rotary handle (10) is annular, the outer wall of the rotary handle (10) is fixedly sleeved with a rotary sleeve, six connecting rods are arranged on the inner side of the rotary handle (10), four clamping grooves (41) opposite in position are formed in the outer wall of the left connecting pipe (4), a clamping block (221) is arranged on the inner side of the left connecting pipe (4), the clamping block (221) is trapezoidal, the side wall of the clamping block (221) is a smooth inclined surface, and the inclination angle of the inclined surface is sixty degrees.