CN212745239U

CN212745239U - Heat-insulation stop valve

Info

Publication number: CN212745239U
Application number: CN202021378560.8U
Authority: CN
Inventors: 张晶晶; 张伟
Original assignee: Sichuan Lantian Cryogenic Technology Develop Co ltd
Current assignee: Sichuan Lantian Cryogenic Technology Develop Co ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-03-19
Anticipated expiration: 2030-07-14

Abstract

The utility model discloses a heat preservation stop valve, which comprises a valve body, the fixed surface of valve body is connected with the heat preservation, the last fixed surface of valve body is connected with the go-between, the last fixed surface of go-between is connected with external screw thread pipe, the threaded rod has been placed to the top of go-between, the surface of threaded rod and the inner circle threaded connection of go-between, the surface cover of threaded rod is equipped with swivel nut, swivel nut's interior roof fixedly connected with gasket, swivel nut's inner circle and external screw thread pipe's surface threaded connection. This heat preservation stop valve utilizes the gasket to prevent that water from flowing from swivel nut's inside, plays certain effect to the saving of water resource, can keep warm to the valve body through the heat preservation, ensures that stop valve inside can not freeze when using winter, makes things convenient for staff's dismantlement, for staff reduces the trouble, utilizes mutually supporting of bolt, through-hole and fixation nut, makes things convenient for the staff to the installation of stop valve.

Description

Heat-insulation stop valve

Technical Field

The utility model belongs to the technical field of the stop valve, especially, relate to a heat preservation stop valve.

Background

The stop valve is also called a stop valve, belonging to a forced sealing type valve, so when the valve is closed, pressure must be applied to a valve clack to prevent a sealing surface from leaking, when a medium enters the valve from the lower part of the valve clack, the resistance to be overcome by an operating force is the friction force of a valve rod and a filler 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 bending can occur, and the stop valve is divided into three types according to the connection mode: flange joint, the screw thread is connected, welded connection, appear the back from the valve of self sealss, the medium flow direction of stop valve just changes and gets into the valve pocket by the valve clack top, at this moment under the medium pressure effect, the power of closing the valve is little, and the power of opening the valve is big, the diameter of valve rod can reduce correspondingly, more and more extensive in the application in each field to the stop valve, present stop valve does not possess heat retaining function, it freezes to make the stop valve very easily winter, make the stop valve can't open, add the trouble for the staff, and the stop valve installation dismantlement of present stage is simple and convenient inadequately, inconvenient staff's installation is dismantled, reduce staff's work efficiency, consequently, for solving above problem, we provide a heat preservation stop valve.

SUMMERY OF THE UTILITY MODEL

The utility model provides a, aim at solving above-mentioned existing present stop valve and do not possess heat retaining function, make the stop valve freeze very easily winter, make the stop valve can't open, no staff adds the trouble to the stop valve installation in present stage is dismantled simple and convenient inadequately, and inconvenient staff's installation is dismantled, reduces staff's work efficiency problem.

The utility model is realized in such a way, a heat preservation stop valve comprises a valve body, the outer surface of the valve body is fixedly connected with a heat preservation layer, the upper surface of the valve body is fixedly connected with a connecting ring, the upper surface of the connecting ring is fixedly connected with an external thread pipe, a threaded rod is arranged above the connecting ring, the outer surface of the threaded rod is in threaded connection with the inner ring of the connecting ring, the outer surface sleeve of the threaded rod is provided with a rotating nut, the inner top wall of the rotating nut is fixedly connected with a gasket, the inner ring of the rotating nut is in threaded connection with the outer surface of the external thread pipe, the left end of the valve body is fixedly communicated with a first sealing flange, the right end of the valve body is fixedly communicated with a second sealing flange, the left side surface of the first sealing flange and the right side surface of the second sealing flange are both fixedly connected with rubber pads, and a first connecting, two symmetrical through-holes, every group have all been seted up to the left surface of first sealing flange's left surface, the left surface of second sealing flange, the left surface of first flange and the left surface of second flange the equal joint in inside of through-hole has the bolt, two symmetrical fixation nut have all been placed on the left side of first flange and the right side of second flange, every fixation nut's inner circle all with the surface threaded connection of bolt, the fixed intercommunication of left surface of first flange has the inlet tube, the fixed intercommunication of right surface of second flange has the drain pipe.

Preferably, the outer fixed surface of valve body is connected with two symmetrical solid fixed rings, two a side that solid fixed ring kept away from each other respectively with the right flank of first sealing flange and the left surface fixed connection of second sealing flange.

Preferably, a rotating handle is arranged above the threaded rod, and the bottom surface of the rotating handle is fixedly connected with the top end of the threaded rod.

Preferably, the outer surface of the threaded rod is fixedly connected with a reinforcing ring, and the upper surface of the reinforcing ring is fixedly connected with the bottom surface of the knob.

Preferably, the outer surface of the threaded rod is fixedly connected with a baffle ring, and the upper surface of the baffle ring is in contact with the bottom surface of the gasket.

Preferably, a cushion block is placed below the valve body, and the upper surface of the cushion block is fixedly connected with the bottom surface of the heat insulation layer.

Preferably, every the surface of bolt all is equipped with the spring pad, and is two sets of a side that the spring pad kept away from each other contacts with the right flank of first sealing flange and the left surface of second sealing flange respectively.

Compared with the prior art, the beneficial effects of the utility model are that: the threaded rod is convenient for workers to install through the connecting ring, convenience is brought to the workers, the mutual matching of the rotary nut and the external threaded pipe is utilized, convenience is provided for the installation of the workers, the position of the threaded rod can be limited, the threaded rod is more stable and firm, the assembly of the stop valve by the workers is facilitated, water is prevented from flowing out of the rotary nut by the gasket, certain effect on saving water resources is achieved, the heat preservation can be performed on the valve body through the heat preservation layer, the freezing of the inside of the stop valve is avoided when the stop valve is used in winter, the disassembly of the workers is facilitated, the trouble is reduced for the workers, the mutual matching of the bolt, the through hole and the fixing nut is utilized, the installation of the stop valve by the workers is facilitated, the first sealing flange and the first connecting flange as well as the second sealing flange and the second connecting flange are more tightly, the water leakage at the joint is prevented, the water resource is saved, the waste is avoided, the valve body is protected through the cushion block, the direct contact between the valve body and the ground is prevented, and the valve body is prevented from being damaged.

Drawings

Fig. 1 is a cross-sectional view of a front view of a swivel nut of the present invention;

fig. 2 is a top view of the knob of the present invention;

fig. 3 is an enlarged schematic view of a structure shown in fig. 1 according to the present invention.

In the figure: 1. a valve body; 2. a heat-insulating layer; 3. a fixing ring; 4. a spring pad; 5. a rubber pad; 6. a bolt; 7. a drain pipe; 8. a second connecting flange; 9. fixing a nut; 10. a connecting ring; 11. a gasket; 12. rotating the nut; 13. rotating a handle; 14. a reinforcing ring; 15. a threaded rod; 16. a baffle ring; 17. an externally threaded tube; 18. a water inlet pipe; 19. a through hole; 20. a first sealing flange; 21. cushion blocks; 22. a second sealing flange; 23. a first attachment flange.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-3, a thermal insulation stop valve comprises a valve body 1, a thermal insulation layer 2 is fixedly connected to the outer surface of the valve body 1, the thermal insulation layer 2 is made of thermal insulation material, the thermal insulation material generally refers to a material with a thermal coefficient less than or equal to zero and two, a connecting ring 10 is fixedly connected to the upper surface of the valve body 1, an external threaded pipe 17 is fixedly connected to the upper surface of the connecting ring 10, a threaded rod 15 is placed above the connecting ring 10, the outer surface of the threaded rod 15 is in threaded connection with the inner ring of the connecting ring 10, a rotating nut 12 is sleeved on the outer surface of the threaded rod 15, a gasket 11 is fixedly connected to the inner top wall of the rotating nut 12, the inner ring of the rotating nut 12 is in threaded connection with the outer surface of the external threaded pipe 17, a first sealing flange 20 is fixedly communicated with the left end of the valve body 1, a second sealing flange 22 is fixedly communicated with, two rubber pads 5 keep away from a side each other and have placed first flange 23 and second flange 8 respectively, first flange 20's left surface, second flange 22's left surface, two symmetrical through-holes 19 have all been seted up to first flange 23's left surface and second flange 8's left surface, the equal joint in inside of every group through-hole 19 has bolt 6, two symmetrical fixation nut 9 have all been placed on first flange 23's left side and second flange 8's right side, every fixation nut 9's inner circle all with bolt 6's surface threaded connection, the fixed intercommunication in left surface of first flange 23 has inlet tube 18, the fixed intercommunication in right surface of second flange 8 has drain pipe 7.

In the utility model, two symmetrical fixing rings 3 are fixedly connected with the outer surface of the valve body 1, one side surface of the two fixing rings 3 which is far away from each other is respectively fixedly connected with the right side surface of the first sealing flange 20 and the left side surface of the second sealing flange 22, the first sealing flange 20 and the second sealing flange 22 are reinforced through the fixing ring 3, the first sealing flange 20 and the second sealing flange 22 are prevented from being damaged, the knob 13 is placed above the threaded rod 15, the bottom surface of the knob 13 is fixedly connected with the top end of the threaded rod 15, make things convenient for the staff to rotate threaded rod 15 through revolving 13, improve staff's work efficiency, the fixed surface of threaded rod 15 is connected with reinforcing ring 14, and reinforcing ring 14's upper surface is consolidated threaded rod 15 through reinforcing ring 14 with revolving the bottom surface fixed connection of 13, prevents threaded rod 15 and revolves fracture between 13, improves and revolves 13 and the threaded rod 15 between the fastness.

The outer surface of the threaded rod 15 is fixedly connected with a baffle ring 16, the upper surface of the baffle ring 16 is contacted with the bottom surface of the gasket 11, the stop ring 16 can limit the up-and-down displacement of the threaded rod 15 to prevent the threaded rod 15 from rotating out of the connecting ring 10, the cushion block 21 is arranged below the valve body 1, the upper surface of the cushion block 21 is fixedly connected with the bottom surface of the heat-insulating layer 2, the valve body 1 is protected by the cushion block 21, the valve body 1 is reinforced, the valve body 1 is firmer and more stable, the outer surface of each bolt 6 is sleeved with a spring pad 4, one side surface of each two groups of spring pads 4 which is far away from each other is respectively contacted with the right side surface of the first sealing flange 20 and the left side surface of the second sealing flange 22, the spring gasket 4 can make the first sealing flange 20 and the first connecting flange 23, the second sealing flange 22 and the second connecting flange 8 tightly contact, and water leakage at the joint of the stop valve is prevented.

The utility model discloses a theory of operation is: when installing the stop valve, threaded connection through threaded rod 15 and go-between 10, utilize threaded rod 15 can rotate the mode that reciprocates, realize the accuse water of stop valve, mutually support through external screw thread pipe 17 and swivel nut 12, make things convenient for staff's installation, when will dismantling, through rotatory fixation nut 9, make fixation nut 9 and bolt 6 alternate segregation, can make first sealing flange 20 and first flange 23 and second sealing flange 22 and second flange 8 alternate segregation, can make valve body 1 and second flange 8 and first flange 23 alternate segregation, realize the installation and the dismantlement of stop valve, realize the heat preservation to the stop valve through heat preservation 2 realization.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a heat preservation stop valve, includes valve body (1), its characterized in that: the heat-insulating layer (2) is fixedly connected to the outer surface of the valve body (1), the connecting ring (10) is fixedly connected to the upper surface of the valve body (1), the outer threaded pipe (17) is fixedly connected to the upper surface of the connecting ring (10), the threaded rod (15) is placed above the connecting ring (10), the outer surface of the threaded rod (15) is in threaded connection with the inner ring of the connecting ring (10), the rotary nut (12) is sleeved on the outer surface of the threaded rod (15), the gasket (11) is fixedly connected to the inner top wall of the rotary nut (12), the inner ring of the rotary nut (12) is in threaded connection with the outer surface of the outer threaded pipe (17), the first sealing flange (20) is fixedly communicated with the left end of the valve body (1), the second sealing flange (22) is fixedly communicated with the right end of the valve body (1), and the rubber pads (5) are fixedly connected to the left side surface of the first sealing flange (20) and the right side, a first connecting flange (23) and a second connecting flange (8) are respectively arranged on one side surface of the two rubber pads (5) far away from each other, the left side surface of the first sealing flange (20), the left side surface of the second sealing flange (22), the left side surface of the first connecting flange (23) and the left side surface of the second connecting flange (8) are respectively provided with two symmetrical through holes (19), the inner part of each group of through holes (19) is clamped with a bolt (6), two symmetrical fixing nuts (9) are respectively arranged on the left side of the first connecting flange (23) and the right side of the second connecting flange (8), the inner ring of each fixing nut (9) is in threaded connection with the outer surface of a bolt (6), the left side surface of the first connecting flange (23) is fixedly communicated with a water inlet pipe (18), and the right side surface of the second connecting flange (8) is fixedly communicated with a drain pipe (7).

2. The thermal insulation stop valve according to claim 1, characterized in that: the outer fixed surface of valve body (1) is connected with two symmetrical solid fixed rings (3), two a side that solid fixed ring (3) kept away from each other respectively with the right flank of first sealing flange (20) and the left surface fixed connection of second sealing flange (22).

3. The thermal insulation stop valve according to claim 1, characterized in that: a knob (13) is arranged above the threaded rod (15), and the bottom surface of the knob (13) is fixedly connected with the top end of the threaded rod (15).

4. A thermal stop valve as defined in claim 3, wherein: the outer surface of the threaded rod (15) is fixedly connected with a reinforcing ring (14), and the upper surface of the reinforcing ring (14) is fixedly connected with the bottom surface of the knob (13).

5. The thermal insulation stop valve according to claim 1, characterized in that: the outer surface of the threaded rod (15) is fixedly connected with a baffle ring (16), and the upper surface of the baffle ring (16) is in contact with the bottom surface of the gasket (11).

6. The thermal insulation stop valve according to claim 1, characterized in that: a cushion block (21) is placed below the valve body (1), and the upper surface of the cushion block (21) is fixedly connected with the bottom surface of the heat-insulating layer (2).

7. The thermal insulation stop valve according to claim 1, characterized in that: every the surface of bolt (6) all is equipped with spring pad (4), and is two sets of a side that spring pad (4) kept away from each other contacts with the right flank of first sealing flange (20) and the left surface of second sealing flange (22) respectively.