Anti-freezing water valve

Abstract

The utility model discloses an anti-freezing water valve which is characterized in that the left end and the right end of a water valve shell are communicated with water valve pipes, and a water valve element is rotationally connected into the water valve shell; the outer side of the water valve pipe is wrapped with a heat preservation cotton sleeve. A guide pipe is installed at one end of the inner side of the water valve pipe, an inner fixing pipe is installed at the other end of the inner side of the water valve pipe, a movable ring is elastically connected to the outer side of the inner fixing pipe through a compression spring, a rubber air bag is connected to the end of the movable ring, and one end of the rubber air bag is connected with the inner fixing pipe. The outer side of the water valve pipe is connected with a pressure adjusting air cylinder, and the interior of the pressure adjusting air cylinder is slidably connected with a movable piston. According to the anti-freezing water valve, when the interior of the valve pipe of the water valve is frozen due to the too low temperature, the moving ring is pushed to move according to the principle that the volume is increased due to water freezing, the internal space of the valve pipe of the water valve is increased, the space for freezing expansion is reserved, direct extrusion of the valve element of the water valve due to freezing expansion is avoided, and damage to the valve element of the water valve is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water valves, in particular to an antifreeze type water valve. Background Art

[0002] A water valve is a device used to control water flow. It can control the on and off of water flow, adjust water pressure and water volume, etc. It is widely used in household tap water systems, municipal water treatment systems, industrial production and other fields. For water valves used outdoors, residual water in the pipes in cold weather can easily cause them to freeze, affecting the normal use of the water valves.

[0003] The publication number is CN207569248U and is named an antifreeze water supply valve, comprising a valve sleeve, a water supply pipe is installed through one end of the lower part of the valve sleeve, a water outlet pipe is installed through the other end of the lower part of the valve sleeve, a valve head is sleeved in the inner cavity of the valve sleeve, water through holes are installed horizontally on the left and right sides of the lower part of the valve head, and a drainage hole is installed horizontally on the lower rear surface of the valve head. The water supply from the water supply pipe to the water outlet pipe can be controlled by the coordinated arrangement of the valve sleeve, the valve head, the valve handle and the water through pipe, and the water flow in the water through hole after closing the valve can be discharged through the water outlet pipe by the coordinated arrangement of the drainage hole, the air hole and the air vent. The rotation range of the valve handle can be limited by the limit groove, and the air hole and the upper end of the air vent can be overlapped and separated by the rotation of the valve head. After the valve is closed, the utility model can automatically discharge the valve and the residual water in its water outlet pipe from the water outlet pipe, thereby avoiding the valve from freezing when the temperature drops below the freezing point. The structure is simple and the antifreeze effect is good.

[0004] The above-mentioned prior art discharges the residual water in the valve head to the water outlet pipe to prevent the valve from freezing. However, when water flows at the valve, there is a lot of residual water in the water valve pipe, and the freezing in the water valve pipe will hinder the rotation of the valve. In addition, the volume of frozen water will increase, which will increase the driving force on the water valve core and cause damage to the water valve core. Therefore, we propose an antifreeze water valve to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide an antifreeze type water valve to solve the problem in the current market raised by the above-mentioned background technology that when water flows through the valve, there is a lot of residual water in the water valve pipe, and the freezing in the water valve pipe will hinder the rotation of the valve, and the frozen water volume will increase, which will increase the driving force on the water valve core and cause damage to the water valve core.

[0006] To achieve the above object, the utility model provides the following technical solutions: an antifreeze type water valve, comprising a water valve housing, both left and right ends of the water valve housing are connected to water valve pipes, and the interior of the water valve housing is rotatably connected to a water valve core;

[0007] The outer side of the water valve pipe is wrapped with a heat-insulating cotton sleeve;

[0008] A guide tube is installed at one end of the inner side of the water valve tube, and an inner fixed tube is installed at the other end of the inner side of the water valve tube. A movable ring is elastically connected to the outer side of the inner fixed tube through a compression spring, and a rubber airbag is connected to the end of the movable ring. One end of the rubber airbag is connected to the inner fixed tube.

[0009] Preferably, a pressure-regulating gas cylinder is connected to the outer side of the water valve tube, a movable piston is slidably connected to the inside of the pressure-regulating gas cylinder, a movable rod is connected to the middle of the movable piston, one end of the pressure-regulating gas cylinder is connected to a regulating air pipe, and one end of the regulating air pipe is connected to the rubber airbag.

[0010] Preferably, a notch is provided on the outside of the thermal insulation cotton cover, and the notch of the thermal insulation cotton cover corresponds to the position of the pressure-regulating gas cylinder.

[0011] Preferably, the movable ring can slide on the outside of the inner fixed tube, and a rubber airbag is connected between the inner fixed tube and the movable ring.

[0012] Preferably, the relative ends of the guide tube and the movable ring are distributed in an inclined shape, and the inner diameter of a section of the guide tube close to the water valve core gradually increases.

[0013] Preferably, the moving rod passes through one end of the pressure regulating gas cylinder and is slidably connected to the pressure regulating gas cylinder, the pressure regulating gas cylinder and the rubber airbag are connected to each other through an adjusting air pipe, and the inner diameter of the rubber airbag is larger than the minimum outer diameter of the internal fixed tube.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The antifreeze type water valve has a water valve pipe wrapped with a heat-insulating cotton sleeve, which is used to insulate the inside of the water valve pipe and isolate the cold air from the outside, thereby reducing the freezing of the water valve pipe due to the low temperature and achieving the antifreeze of the water valve;

[0016] (2) When the temperature is too low and the inside of the water valve tube freezes, the antifreeze type water valve uses the principle that the volume of frozen water increases to push the moving ring to move, thereby increasing the internal space of the water valve tube and reserving space for ice expansion, thereby preventing the ice expansion from directly squeezing the water valve core and reducing damage to the water valve core;

[0017] (3) In this antifreeze type water valve, the expansion of ice pushes the moving ring to move, which can squeeze the rubber airbag, fill the air flow into the pressure regulating gas cylinder, control the moving piston to drive the moving rod to move, and observe the position of the moving rod to understand the ice situation inside the water valve. The moving rod is driven to drive the moving piston to move, which can adjust the air pressure in the rubber airbag, control the rubber airbag to drive the moving ring to move back and forth, impact the frozen ice, and assist in thawing the frozen ice. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the water valve housing of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the internal fixation tube of the utility model;

[0021] Figure 4 For this utility model Figure 3 A is an enlarged structural diagram;

[0022] Figure 5 This is a schematic diagram of the guide tube structure of the utility model;

[0023] Figure 6 It is a schematic diagram of the cross-sectional structure of the pressure regulating gas cylinder of the utility model.

[0024] In the figure: 1. Water valve housing; 2. Water valve pipe; 3. Thermal insulation cotton cover; 4. Water valve core; 5. Internal fixed tube; 6. Compression spring; 7. Moving ring; 8. Guide tube; 9. Rubber airbag; 10. Adjusting air pipe; 11. Pressure regulating air cylinder; 12. Moving piston; 13. Moving rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 6 The utility model provides the following technical solutions: an antifreeze type water valve, comprising a water valve housing 1, the left and right ends of the water valve housing 1 are connected with a water valve pipe 2, the inside of the water valve housing 1 is rotatably connected with a water valve core 4; the outer side of the water valve pipe 2 is wrapped with a heat preservation cotton sleeve 3; the outer side of the heat preservation cotton sleeve 3 is provided with a notch, the notch of the heat preservation cotton sleeve 3 corresponds to the position of the pressure regulating gas cylinder 11, the heat preservation cotton sleeve 3 can be used to insulate the water valve pipe 2, and a space is reserved for the installation of the pressure regulating gas cylinder 11;

[0027] The water valve core 4 is driven to rotate, so as to realize the switch of the water valve and control the flow of water. The outer side of the water valve pipe 2 is wrapped with a heat-insulating cotton sleeve 3, so as to realize the heat preservation of the water valve pipe 2 and reduce the freezing of the water valve pipe 2 due to the influence of low temperature.

[0028] A guide tube 8 is installed at one end of the inner side of the water valve tube 2, and an inner fixed tube 5 is installed at the other end of the inner side of the water valve tube 2. A movable ring 7 is elastically connected to the outer side of the inner fixed tube 5 through a compression spring 6, and a rubber air bag 9 is connected to the end of the movable ring 7, and one end of the rubber air bag 9 is connected to the inner fixed tube 5; a pressure regulating gas cylinder 11 is connected to the outer side of the water valve tube 2, and a movable piston 12 is slidably connected to the inside of the pressure regulating gas cylinder 11, and a movable rod 13 is connected to the middle of the movable piston 12, and one end of the pressure regulating gas cylinder 11 is connected to a regulating air pipe 10, and one end of the regulating air pipe 10 is connected to the rubber air bag 9;

[0029] The movable ring 7 can slide on the outside of the inner fixed tube 5, and a rubber airbag 9 is connected between the inner fixed tube 5 and the movable ring 7, which can push the movable ring 7 to move smoothly when the water freezes and expands, and reserve space for water freezing to avoid ice squeezing the water valve core 4; the relative ends of the guide tube 8 and the movable ring 7 are distributed in an inclined shape, and the inner diameter of a section of the guide tube 8 close to the water valve core 4 gradually increases, which is convenient for ice to extend between the guide tube 8 and the movable ring 7 to push the movable ring 7; the movable rod 13 passes through one end of the pressure-regulating gas cylinder 11 and is slidably connected to the pressure-regulating gas cylinder 11, and the pressure-regulating gas cylinder 11 and the rubber airbag 9 are connected to each other through the regulating air pipe 10, and the inner diameter of the rubber airbag 9 is larger than the minimum outer diameter of the inner fixed tube 5, which can ensure that the rubber airbag 9 is squeezed and moved, and the airflow is smoothly discharged into the pressure-regulating gas cylinder 11, and the air pressure in the pressure-regulating gas cylinder 11 is adjusted to push the movable piston 12 to control the movement of the movable rod 13;

[0030] If the temperature is too low and the residual water in the water valve tube 2 freezes, the frozen water volume increases, and the ice pushes the moving ring 7 to move, and the moving ring 7 squeezes the rubber airbag 9. At the same time, the moving ring 7 squeezes and stores force on the compression spring 6, thereby increasing the volume in the water valve tube 2 and reserving space for ice formation, thereby preventing the ice from expanding and directly squeezing the water valve core 4, thereby reducing damage to the water valve core 4. When the moving ring 7 moves to press the rubber airbag 9, the airflow in the rubber airbag 9 is transported to the pressure regulating gas cylinder 11 through the regulating air pipe 10, pressing the moving piston 12 in the pressure regulating gas cylinder 11. Pushing, the moving piston 12 slides in the pressure-regulating gas cylinder 11, so that the moving piston 12 pushes the moving rod 13 to move. The freezing situation inside the water valve can be understood by observing the moving rod 13, and the moving rod 13 can be manually driven to move back and forth, and the air pressure in the pressure-regulating gas cylinder 11 is adjusted to make the rubber airbag 9 inflate and deflate, thereby controlling the moving ring 7 to move back and forth, impacting the frozen state, and assisting in thawing the frozen ice, so that the water valve can be used quickly and normally. The contents not described in detail in this manual belong to the prior art known to professional and technical personnel in this field.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An antifreeze water valve, comprising a water valve housing (1), characterized in that: The left and right ends of the water valve housing (1) are both connected to water valve pipes (2), and the interior of the water valve housing (1) is rotatably connected to a water valve core (4); The outer side of the water valve tube (2) is wrapped with a heat-insulating cotton sleeve (3); A guide tube (8) is installed at one end of the inner side of the water valve tube (2), and an inner fixed tube (5) is installed at the other end of the inner side of the water valve tube (2). The outer side of the inner fixed tube (5) is elastically connected to a movable ring (7) via a compression spring (6). The end of the movable ring (7) is connected to a rubber airbag (9), and one end of the rubber airbag (9) is connected to the inner fixed tube (5).

2. The antifreeze water valve according to claim 1, characterized in that: The outer side of the water valve tube (2) is connected to a pressure regulating gas cylinder (11), the interior of the pressure regulating gas cylinder (11) is slidably connected to a movable piston (12), the middle of the movable piston (12) is connected to a movable rod (13), one end of the pressure regulating gas cylinder (11) is connected to a regulating air pipe (10), and one end of the regulating air pipe (10) is connected to a rubber air bag (9).

3. The antifreeze water valve according to claim 2, characterized in that: The outside of the thermal insulation cotton sleeve (3) is provided with a notch, and the notch of the thermal insulation cotton sleeve (3) corresponds to the position of the pressure regulating gas cylinder (11).

4. The antifreeze water valve according to claim 1, characterized in that: The movable ring (7) can slide on the outside of the inner fixed tube (5), and a rubber airbag (9) is connected between the inner fixed tube (5) and the movable ring (7).

5. The antifreeze water valve according to claim 1, characterized in that: The opposite ends of the guide tube (8) and the movable ring (7) are distributed in an inclined shape, and the inner diameter of a section of the guide tube (8) close to the water valve core (4) gradually increases.

6. The antifreeze water valve according to claim 2, characterized in that: The moving rod (13) passes through one end of the pressure regulating gas cylinder (11) and is slidably connected to the pressure regulating gas cylinder (11); the pressure regulating gas cylinder (11) and the rubber air bag (9) are connected to each other through the regulating air pipe (10); the inner diameter of the rubber air bag (9) is larger than the minimum outer diameter of the internal fixed tube (5).

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