Sealed anti-freezing valve

Abstract

The utility model discloses a sealing anti-freezing type valve which comprises a valve body, the left end and the right end of the valve body are communicated with valve pipes, the upper end of the valve body is connected with a valve handle in a rotating mode, a valve element is installed at the lower end of the valve handle, and a through hole is formed in the lower end of the valve element. The lower end of the valve body communicates with a collecting pipe, and the lower end of the collecting pipe is in threaded connection with a sealing cover. The outer side of the valve pipe is sleeved with an extension pipe, the inner side of the extension pipe is connected with a rubber ring, the outer side of the extension pipe is provided with a positioning hole, and the outer side of the valve pipe is connected with an air bag in an adhesive mode. The sealing anti-freezing valve is provided with the through hole and the collecting pipe, and when the valve element is controlled to rotate to close the valve, the position of the through hole is aligned with the position of the collecting pipe, so that residual water in the valve element flows into the collecting pipe through the through hole, the sealing cover is conveniently opened subsequently, and the residual water is discharged; the situation that residual water is left in the valve element and frozen in a low-temperature state is avoided, damage to the valve element caused by freezing is avoided, and the anti-freezing performance of the valve can be improved.

Description

Technical Field

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

[0002] Valves are control components that can open and close pipelines to achieve pipeline cutoff, flow diversion, pressure stabilization, and flow diversion. They can control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, etc.

[0003] Among them, the announcement number CN217502656U is called an antifreeze ball valve, including a valve body, an inlet channel is arranged inside the valve body, a fixing sleeve is fixedly connected to the top of the valve body, a receiving seat is fixedly connected to the bottom of the valve body, a valve core ball is arranged inside the valve body, a sealing valve seat is arranged outside the valve core ball, a side-mounted fixing block is arranged on one side of the valve body, a flow hole is opened inside the valve core ball, a valve stem is fixedly connected to the top of the valve core ball, a valve core fixing shaft is fixedly connected to the bottom of the valve core ball, and a packing is fixedly connected to the outside of the valve stem. The antifreeze ball valve can insulate the liquid circulating inside the valve body through the temperature-locking sleeve and the insulation cotton layer inside the wear-resistant sleeve. Even when the outdoor temperature is low, the temperature-locking sleeve and the insulation cotton layer can slow down the loss of heat in the liquid. The ball valve achieves an antifreeze effect and solves the problem that the inside of the valve body is easily frozen.

[0004] After the valve of the above-mentioned prior art is closed, water will remain inside the valve core. Under low temperature conditions, internal ice will affect the normal use of the valve and cause damage to the valve core. In addition, the valve cannot be quickly and flexibly loaded and unloaded. After the inside of the valve is frozen, it is not convenient to quickly handle and adjust it, which affects the normal opening and closing of the valve. Therefore, we propose a sealed antifreeze valve to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a sealed antifreeze valve to solve the problem raised in the above-mentioned background technology that after the valve on the market is closed, water will remain inside the valve core, and the internal ice will affect the normal use of the valve under low temperature conditions, and cause damage to the valve core, and the valve cannot be quickly and flexibly loaded and unloaded.

[0006] To achieve the above object, the utility model provides the following technical solution: a sealed antifreeze valve, comprising a valve body, both left and right ends of the valve body are connected to valve pipes, the upper end of the valve body is rotatably connected to a valve handle, the lower end of the valve handle is equipped with a valve core, and the lower end of the valve core is provided with a through hole;

[0007] The lower end of the valve body is connected to a collecting pipe, and the lower end of the collecting pipe is threadedly connected to a sealing cover;

[0008] An extension tube is sleeved on the outer side of the valve tube, a rubber ring is connected to the inner side of the extension tube, a positioning hole is opened on the outer side of the extension tube, and an air bag is bonded and connected to the outer side of the valve tube.

[0009] Preferably, the outer side of the valve tube is connected to an air cylinder, the inside of the air cylinder is slidably connected to a piston, the piston is elastically connected to the air cylinder through a spring, the lower end of the air cylinder is connected to an air pipe, one end of the air pipe is connected to the airbag. This design can utilize the movement of the piston in the air cylinder to adjust the airflow in the airbag, thereby realizing the inflation and deflation of the airbag.

[0010] Preferably, the outer side of the valve handle is slidably connected to a moving ring, the outer side of the moving ring is symmetrically connected to a positioning frame, the middle of the positioning frame is connected to a moving rod, and the moving rod passes through the upper wall of the gas cylinder and is connected to the piston.

[0011] Preferably, the position of the through hole and the position of the collecting tube are arranged corresponding to each other, and the through hole passes through the lower wall of the valve core. This design allows the residual water in the valve core to flow from the through hole into the collecting tube when the valve core rotates to close the valve, thereby preventing the residual water in the valve core from freezing.

[0012] Preferably, the positioning frame is a side "L"-shaped structure, and the positioning frame and the positioning hole are engaged with each other. This design can use the positioning frame to lock the position of the extension tube, thereby achieving rapid assembly and disassembly of the valve.

[0013] Preferably, the rubber ring is a circular ring structure, and the inner side of the rubber ring is distributed in an inclined shape. This design allows the end of the pipe to gradually squeeze the rubber ring, and the rubber ring is deformed due to the squeeze force, thereby increasing the sealing between the pipes.

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

[0015] (1) The sealed antifreeze valve is provided with a through hole and a collecting pipe. When the valve core is controlled to rotate to close the valve, the position of the through hole and the position of the collecting pipe are aligned, so that the residual water in the valve core flows into the collecting pipe through the through hole, which is convenient for opening the sealing cover later to discharge the residual water, thereby preventing the residual water from freezing in the valve core under low temperature conditions and preventing the valve core from being damaged by freezing, thereby improving the antifreeze performance of the valve;

[0016] (2) The sealed antifreeze valve drives the extension tube to rotate and move, thereby shrinking the extension tube. At the shrinking end of the extension tube, hot water is introduced into the valve to quickly thaw the frozen valve, thereby avoiding affecting the normal use of the valve and improving the antifreeze performance of the valve.

[0017] (3) The sealed antifreeze valve utilizes a retractable extension tube to quickly assemble the valve. The contraction of the extension tube can reduce the distance between the water pipe and the valve tube, so that there is enough space for the valve to be removed. The extension of the extension tube can increase the distance between the water pipe and the valve, so that the valve can be quickly assembled. The extension of the extension tube and the pressure of the water pipe cause the rubber ring to deform under force, thereby increasing the assembly sealing between the two. When the positioning frame moves downward to lock the extension tube, the piston is driven downward to fill the air bag with air. The inflated air bag presses against the extension tube, thereby increasing the sealing between the extension tube and the valve tube, thereby improving the assembly sealing of the valve and preventing leakage. 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 explosion structure of the utility model;

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

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

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the gas cylinder of the utility model.

[0023] In the figure: 1. valve body; 2. valve handle; 3. valve core; 4. through hole; 5. collecting tube; 6. sealing cover; 7. valve tube; 8. moving ring; 9. positioning frame; 10. moving rod; 11. air cylinder; 12. piston; 13. spring; 14. extension tube; 15. rubber ring; 16. positioning hole; 17. air bag; 18. air pipe. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-Figure 5The utility model provides the following technical solutions: a sealed antifreeze valve, comprising a valve body 1, both left and right ends of the valve body 1 are connected with valve pipes 7, the upper end of the valve body 1 is rotatably connected with a valve handle 2, the lower end of the valve handle 2 is equipped with a valve core 3, and the lower end of the valve core 3 is provided with a through hole 4; the lower end of the valve body 1 is connected with a collecting pipe 5, and the lower end of the collecting pipe 5 is threadedly connected with a sealing cover 6; the position of the through hole 4 and the position of the collecting pipe 5 are arranged corresponding to each other, and the through hole 4 passes through the lower wall of the valve core 3;

[0026] The valve handle 2 is controlled to rotate, and the valve core 3 can be driven to rotate. When the valve core 3 rotates to close the valve, the position of the through hole 4 corresponds to the position of the collecting tube 5, and the residual water in the valve core 3 can flow into the collecting tube 5 along the through hole 4, thereby avoiding residual water in the valve core 3 and preventing the valve core 3 from freezing. Subsequently, the sealing cover 6 threadedly connected to the end of the collecting tube 5 can be opened to remove the residual water.

[0027] The outer side of the valve tube 7 is sleeved with an extension tube 14, the inner side of the extension tube 14 is connected with a rubber ring 15, the outer side of the extension tube 14 is provided with a positioning hole 16, and the outer side of the valve tube 7 is bonded with an air bag 17; the outer side of the valve tube 7 is connected with an air cylinder 11, the interior of the air cylinder 11 is slidably connected with a piston 12, the piston 12 is elastically connected to the air cylinder 11 through a spring 13, the lower end of the air cylinder 11 is connected with an air pipe 18, and one end of the air pipe 18 and the air bag 17 are connected to each other; the outer side of the valve handle 2 is slidably connected with a moving ring 8, the outer side of the moving ring 8 is symmetrically connected with a positioning frame 9, the middle part of the positioning frame 9 is connected with a moving rod 10, the moving rod 10 passes through the upper wall of the air cylinder 11 and is connected with the piston 12; the positioning frame 9 is a side "L"-shaped structure, and the positioning frame 9 and the positioning hole 16 are engaged with each other; the rubber ring 15 is a circular ring structure, and the inner side surface of the rubber ring 15 is distributed in an inclined shape;

[0028] The valve body 1 is placed between the water pipes, and the moving ring 8 is pushed upward, so that the moving ring 8 controls the positioning frame 9 to move upward. At the same time, the positioning frame 9 controls the moving rod 10 to drive the piston 12 to slide upward in the air cylinder 11. The piston 12 squeezes the spring 13 to store force. The air cylinder 11 sucks the air bag 17 through the air pipe 18. The air bag 17 contracts and releases the pressure on the extension tube 14. The extension tube 14 can be rotated so that the extension tube 14 is threadedly connected to the end of the water pipe. The extension tube 14 is sleeved on the outside of the water pipe and sealed with the water pipe thread. At the same time, the end of the water pipe gradually squeezes the rubber ring 15, so that the rubber ring 15 begins to deform under force. The rubber ring 15 is used to increase the sealing of the connection between the extension tube 14 and the water pipe. The push on the moving ring 8 is released, and the spring 13 can control the piston 12 to move down and reset. The airflow in the cylinder 11 is filled into the airbag 17, and the airbag 17 begins to inflate, pressing the extension tube 14 to position it, and increasing the sealing between the extension tube 14 and the valve tube 7. At the same time, the moving rod 10 follows the piston 12 to move downward, thereby controlling the positioning frame 9 to move downward, and the positioning frame 9 is stuck in the positioning hole 16 at the corresponding position, locking the extension tube 14, and the valve assembly can be completed. Subsequently, it is only necessary to push the moving ring 8 upward to release the lock of the extension tube 14, and rotate the extension tube 14 in the opposite direction, so that the extension tube 14 can be retracted to the outside of the valve tube 7, and the connection between the extension tube 14 and the water pipe is released, and the valve can be removed for maintenance, or hot water can be passed from the disassembly end of the extension tube 14 to thaw the inside. The contents not described in detail in this manual belong to the prior art known to professional and technical personnel in this field.

[0029] 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. A sealed antifreeze valve, comprising a valve body (1), characterized in that: The left and right ends of the valve body (1) are both connected to valve pipes (7); the upper end of the valve body (1) is rotatably connected to a valve handle (2); the lower end of the valve handle (2) is provided with a valve core (3); and the lower end of the valve core (3) is provided with a through hole (4); The lower end of the valve body (1) is connected to a collecting pipe (5), and the lower end of the collecting pipe (5) is threadedly connected to a sealing cover (6); An extension tube (14) is sleeved on the outer side of the valve tube (7), a rubber ring (15) is connected to the inner side of the extension tube (14), a positioning hole (16) is opened on the outer side of the extension tube (14), and an air bag (17) is bonded and connected to the outer side of the valve tube (7).

2. The sealed antifreeze valve according to claim 1, characterized in that: The outer side of the valve tube (7) is connected to an air cylinder (11), the interior of the air cylinder (11) is slidably connected to a piston (12), the piston (12) is elastically connected to the air cylinder (11) via a spring (13), the lower end of the air cylinder (11) is connected to an air pipe (18), one end of the air pipe (18) is connected to the air bag (17).

3. The sealed antifreeze valve according to claim 2, characterized in that: The outer side of the valve handle (2) is slidably connected to a moving ring (8), the outer side of the moving ring (8) is symmetrically connected to a positioning frame (9), the middle of the positioning frame (9) is connected to a moving rod (10), and the moving rod (10) passes through the upper wall of the air cylinder (11) and is connected to the piston (12).

4. The sealed antifreeze valve according to claim 1, characterized in that: The position of the through hole (4) and the position of the collecting pipe (5) are arranged to correspond to each other, and the through hole (4) passes through the lower wall of the valve core (3).

5. The sealed antifreeze valve according to claim 3, characterized in that: The positioning frame (9) is a side "L"-shaped structure, and the positioning frame (9) and the positioning hole (16) are engaged with each other.

6. The sealed antifreeze valve according to claim 1, characterized in that: The rubber ring (15) is a circular ring structure, and the inner side surface of the rubber ring (15) is distributed in an inclined shape.

Images