CN221974326U - Gate valve with antifreezing function - Google Patents

Abstract

The utility model provides a gate valve with an antifreezing function, which has a simple structure and can prevent a valve plate from being frozen and deformed, and comprises a valve body, a valve cover arranged on the valve body, a water inlet channel and a water outlet channel which are radially arranged along the valve body, and a valve plate arranged between the water inlet channel and the water outlet channel and used for controlling the opening and closing of fluid.

Description

A gate valve with antifreeze function

Technical Field

The utility model relates to the technical field of valves, in particular to a gate valve with an antifreeze function.

Background Art

The gate valve is an opening and closing part, the movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve is sealed by the contact between the valve seat and the gate. Usually the sealing surface is welded with metal materials to increase wear resistance. The gate plates are rigid gate plates and elastic gate plates. Depending on the gate plates, gate valves are divided into rigid gate valves and elastic gate valves.

The existing gate valve is installed outdoors. When the valve is closed, due to the low temperature in winter, ice forms in the pipe, causing the inside of the valve to freeze, which in turn causes the valve plate inside the valve to be easily frozen and deformed, thereby affecting the service life of the valve.

Utility Model Content

Therefore, in view of the above problems, the utility model proposes a gate valve with an antifreeze function which has a simple structure and can prevent the valve plate from being deformed by freezing.

In order to solve the above technical problems, the solution adopted by the utility model is: a gate valve with an anti-freeze function, comprising a valve body, a valve cover arranged on the valve body, an inlet channel and an outlet channel radially opened along the valve body, and a valve plate arranged between the inlet channel and the outlet channel for controlling the opening and closing of the fluid, a valve stem is provided on the valve body, one end of the valve stem is connected to the valve plate, and the other end of the valve stem passes through the valve cover, the valve body is located in the inlet channel and the outlet channel and is provided with a flow blocking device for blocking water from flowing toward the valve plate, and the valve body is also provided with a discharge device for discharging water between the flow blocking devices.

A further improvement is that the baffle device includes a fixed plate arranged on the inner wall of the water inlet channel or the inner wall of the water outlet channel, the fixed plate is provided with a sliding channel, a baffle is slidably arranged in the sliding channel, the baffle resists the bottom of the water inlet channel or the water outlet channel, and the fixed plate is provided with a sliding device for pushing the baffle to slide.

A further improvement is that the sliding device includes a screw rod, which is rotatably inserted into the valve body, one end of which is threadably connected to the baffle plate, and the other end of which passes through the outside of the valve body.

A further improvement is that the drainage device includes a plug, the valve body is provided with a drainage channel penetrating the valve body at the valve plate, the plug is threadedly connected to the drainage channel, and a sealing member is provided between the plug and the valve body.

A further improvement is that: a heating device for heating the valve plate at a constant temperature is also provided inside the valve plate.

A further improvement is that the constant temperature heating device is a heating tube, and the heating tube is arranged inside the valve plate.

A further improvement is that a rotating handle is provided on the screw rod. By adopting the above technical solution, the beneficial effects of the utility model are:

The structure is simple, easy to use, and can prevent the valve plate from freezing and deformation. The baffle can block the water flow in the water inlet channel and the water outlet channel to prevent it from flowing to the valve plate, and then the drainage channel can drain the water between the baffles to prevent the valve plate from freezing. The heating pipe can heat the valve plate to further prevent the valve plate from freezing and deformation when the temperature is low.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the cross-sectional structure of a gate valve with an antifreeze function according to an embodiment of the utility model.

DETAILED DESCRIPTION

The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.

Referring to FIG1 , the embodiment of the utility model discloses: a gate valve with an antifreeze function, comprising a valve body 1, a valve cover 6 arranged on the valve body 1, a water inlet channel 2 and a water outlet channel 3 radially opened in the valve body 1, a valve plate 4 arranged between the water inlet channel 2 and the water outlet channel 3 for controlling the opening and closing of the fluid, a fixing plate 9 arranged on the inner wall of the water inlet channel 2 and the inner wall of the water outlet channel 3, and a plug 8, a valve stem 5 is arranged on the valve body 1, one end of the valve stem 5 is connected to the valve plate 4, and the other end of the valve stem 5 passes through the valve cover 6, the fixing plate 9 is provided with a sliding channel 11, and the sliding channel A baffle plate 10 is slidably provided in the valve body 11, and the baffle plate 10 resists the bottom of the water inlet channel 2 or the water outlet channel 3. A screw 12 is provided on the fixing plate 9 for pushing the baffle plate 10 to slide. The screw 12 is rotatably penetrated on the valve body 1, and one end of the screw 12 is threadedly connected with the baffle plate 10, and the other end of the screw 12 passes through the outside of the valve body 1. The valve body 1 is provided with a discharge channel penetrating the valve body 1 at the valve plate 4, and the plug 8 is threadedly connected to the discharge channel, and a sealing ring is provided between the plug 8 and the valve body 1. Among them, when the valve is closed and not in use in the cold winter, the screw 12 is first rotated, and the screw 12 and the baffle 10 are threadedly transmitted, so that the baffle 10 slides out of the sliding channel 11 and resists the bottom end of the inner wall of the water inlet channel 2 and the water outlet channel 3, and then the sealing plug 8 is opened to make the water between the two baffles 10 flow out from the drainage channel, and the water flow is drained cleanly, and then the sealing plug 8 is threadedly connected, and then the valve plate 4 is dropped and closed, so as to prevent the water flow in the channel from freezing and damaging the valve plate 4.

In order to further protect the valve plate 4 and prevent the valve plate 4 from freezing, a heating pipe 7 for heating the valve plate 4 at a constant temperature is further provided inside the valve plate 4 .

In order to facilitate the rotation of the screw rod 12 , a rotation handle is provided on the screw rod 12 .

The basic principles, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims (6)

1. A gate valve with an antifreeze function, comprising a valve body, a valve cover arranged on the valve body, an inlet channel and an outlet channel radially opened in the valve body, and a valve plate arranged between the inlet channel and the outlet channel for controlling the opening and closing of a fluid, wherein the valve body is provided with a valve stem, one end of the valve stem is connected to the valve plate, and the other end of the valve stem passes through the valve cover, characterized in that: the valve body is provided with a flow blocking device located in the inlet channel and the outlet channel to block water from flowing toward the valve plate, and the valve body is also provided with a discharge device for discharging water between the flow blocking devices, the flow blocking device comprises a fixed plate arranged on the inner wall of the inlet channel or the inner wall of the outlet channel, the fixed plate is provided with a sliding channel, a flow blocking plate is slidably provided in the sliding channel, the flow blocking plate resists the bottom of the inlet channel or the outlet channel, and a sliding device for pushing the flow blocking plate to slide is provided on the fixed plate. 2. A gate valve with antifreeze function according to claim 1, characterized in that: the sliding device includes a screw, the screw is rotatably penetrated on the valve body, one end of the screw is threadedly connected to the baffle, and the other end of the screw passes through the outside of the valve body. 3. A gate valve with antifreeze function according to claim 1, characterized in that: the drainage device includes a plug, the valve body is provided with a drainage channel penetrating the valve body at the valve plate, the plug is threadedly connected to the drainage channel, and a seal is provided between the plug and the valve body. 4. A gate valve with antifreeze function according to claim 1, characterized in that: a heating device for constant temperature heating of the valve plate is also provided inside the valve plate. 5. A gate valve with antifreeze function according to claim 4, characterized in that: the heating device is: a heating tube, and the heating tube is arranged inside the valve plate. 6. A gate valve with antifreeze function according to claim 2, characterized in that: a rotating handle is provided on the screw rod.