Self-lubricating groove fire-fighting butterfly valve

Abstract

The utility model discloses a self-lubricating groove fire-fighting butterfly valve, which relates to the technical field of butterfly valves and comprises a valve body, a valve plate used for regulating and controlling flow is mounted in the valve body, a handle used for regulating and controlling the valve plate is mounted above the valve body, and sockets used for being connected with a fire-fighting water pipe are arranged in the valve body and positioned on two sides of the valve plate. A bolt used for locking is arranged outside the valve body, the outer layer of the inserting opening is an outer ring made of metal materials, the inner layer of the inserting opening is a groove, an oil supplementing opening capable of being closed is formed in the outer ring, a groove opening of the groove is in an arc shape facilitating filling of lubricating oil, oil storage layers are arranged on the two sides of the groove opening, and the oil storage layers and the groove opening are connected with an oil conveying pipeline. A one-way valve is arranged in the middle of the oleophobic pipeline; due to the design of self-supply lubricating oil, the lubricating oil does not need to be manually added when the interface is plugged and unplugged, the interface can be quickly opened or closed in emergency, and the response speed of a fire fighting system is ensured.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve technology, and more specifically to a self-lubricating grooved fire-fighting butterfly valve. Background Technology

[0002] Fire-fighting butterfly valves are butterfly valves specifically designed for fire protection systems to control the flow of fire-fighting water. The design of fire-fighting butterfly valves needs to take into account the special requirements of the fire protection system. For example, when butterfly valves need to be installed in an emergency, the pipeline needs to be connected quickly to ensure that fire-fighting water can be supplied in a timely manner. However, the grooves of fire-fighting butterfly valves usually need to be lubricated when connecting them. The process is relatively cumbersome and there is a risk of insufficient lubrication leading to wear and tear on the interface.

[0003] Existing fire-fighting butterfly valves, as shown in application number CN201620704180.6, "Fire-fighting butterfly valve," have a cylindrical valve body 1. The cylinder has an inlet on the inner side, which connects to the water supply pipe. When fixing the inlet and outlet pipes, the four connection holes 14 are aligned and tightened with bolts. While this bolt connection prevents leakage, without lubrication, the interface is prone to wear after prolonged use, reducing equipment lifespan and posing safety hazards. Utility Model Content

[0004] The purpose of this utility model is to provide a self-lubricating grooved fire-fighting butterfly valve in order to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] This utility model proposes a self-lubricating grooved fire-fighting butterfly valve, including a valve body. Inside the valve body is a butterfly plate for flow regulation. A handle for regulating the butterfly plate is installed above the valve body. Inside the valve body and on both sides of the butterfly plate are sockets for connecting to fire-fighting water pipes. Outside the valve body are bolts for locking, with a threaded rod running through the center of each bolt. The outer layer of the socket is a metal ring, and the inner layer is a groove. A closable oil inlet is provided on the outer ring. A groove opening is provided in the middle of the groove, and oil storage layers are located on both sides of the groove opening. An oil delivery pipe connects the oil storage layers to the groove opening, and a one-way valve is installed in the middle of the oil delivery pipe.

[0007] As a preferred embodiment of this utility model, the groove opening is an arc shape to facilitate the filling of lubricating oil.

[0008] As a preferred embodiment of this utility model, the groove of the socket matches the protrusion of the fire water pipe.

[0009] As a preferred embodiment of this utility model, a rubber ring for sealing is installed at the connection between the upper side of the oil storage layer and the fire water pipe.

[0010] The beneficial effects of this utility model are as follows:

[0011] Fire-fighting butterfly valves use grooved connections, eliminating the need for welding and making installation and disassembly extremely convenient. Fire-fighting pipelines typically require frequent maintenance or replacement; grooved connections significantly improve construction efficiency and reduce installation time, making them highly practical for fire protection systems.

[0012] The self-lubricating design eliminates the need for manual lubrication during valve installation, reducing installation time and improving smooth opening and closing, which is crucial for fire protection systems. In emergencies, valves require quick and reliable installation to ensure the supply of fire-fighting water. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the socket structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the groove structure of this utility model.

[0016] Attached reference numerals: 1. Valve body; 2. Handle; 3. Socket; 4. Butterfly plate; 5. Fire water pipe; 6. Protrusion; 7. Bolt; 8. Screw; 21. Oil reservoir; 22. Check valve; 23. Groove; 24. Rubber ring; 25. Oil delivery pipeline; 31. Outer ring; 32. Oil replenishment port; 33. Groove. Detailed Implementation

[0017] Example 1

[0018] like Figures 1 to 3 As shown, this utility model proposes a self-lubricating grooved fire-fighting butterfly valve, comprising a valve body, a butterfly plate for regulating flow installed inside the valve body, a handle for regulating the butterfly plate installed above the valve body, a socket for connecting to a fire-fighting water pipe provided inside the valve body and on both sides of the butterfly plate, a bolt for locking provided outside the valve body, a threaded rod installed through the middle of the bolt, an outer ring of metal material for the socket, a groove for the inner layer of the socket, a closable oil supply port provided on the outer ring, a groove opening provided in the middle of the groove, oil storage layers on both sides of the groove opening, an oil delivery pipe connected to the oil storage layers and the groove opening, and a one-way valve provided in the middle of the oil delivery pipe.

[0019] The groove opening is an arc shape to facilitate the filling of lubricating oil.

[0020] The groove of the socket matches the protrusion of the fire water pipe.

[0021] A rubber ring for sealing is installed at the connection between the upper side of the oil storage layer and the fire water pipe.

[0022] Working principle: When the butterfly valve needs to be connected to the fire water pipe, the one-way valve in the oil supply pipeline opens. At this time, the lubricating oil stored in the oil reservoir flows to the groove. Due to the cylindrical concave design of the groove, the lubricating oil will flow to fill the groove. When the oil supply pipeline outputs enough oil to lubricate the groove, the one-way valve will automatically close (the one-way valve is equipped with a timed closing program, the program setting is common knowledge in this field and will not be explained in detail here). The lubrication at the groove can prevent wear after the mechanical connection of the interface when connecting the pipeline. At the same time, the lubrication effect makes it easier for firefighters to connect the pipeline and the butterfly valve, which is quite advantageous in the face of emergency fire.

[0023] After lubrication, connect the pipe to the butterfly valve socket. The groove on the socket matches the protrusion on the fire water pipe. When the two are aligned, tighten the bolts on the valve body. The bolts lock the valve body through the screw, closing the valve body and allowing the fire butterfly valve to operate. Turning the handle at this point adjusts the rotation of the butterfly plate, thereby controlling the speed of water flow through the fire water pipe. This allows firefighters to adjust the water flow in response to different fire situations. The matching design facilitates quick connection of pipes and valves by firefighters, preventing delays in firefighting work due to complicated installation processes.

[0024] The outer ring is equipped with an oil filler port that can be opened and closed, allowing firefighters to add lubricating oil according to the oil level in the reservoir during routine maintenance, ensuring the equipment can work properly.

[0025] A rubber ring is installed at the contact point between the upper part of the oil storage layer and the fire water pipe for sealing, further preventing the risk of water leakage when connecting the fire hose.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A self-lubricating grooved butterfly valve comprising a valve body (1), characterized in that: The valve body (1) is internally provided with a butterfly plate (4) for regulating flow, the valve body (1) is provided with a handle (2) for regulating the butterfly plate (4) above, the valve body (1) is internally provided with a socket (3) for connecting with a fire water pipe (5) on both sides of the butterfly plate (4), the valve body (1) is externally provided with a bolt (7) for locking, the bolt (7) is provided with a screw rod (8) penetratingly installed in the middle, the socket is externally provided with a metal outer ring (31), the socket (3) is internally provided with a groove (33), the outer ring (31) is provided with a closable oil supplementing port (32), the groove (33) is provided with a notch (23) in the middle, the notch (23) is provided with an oil storage layer (21) on both sides, the oil storage layer (21) is connected with an oil delivery pipeline (25) with the notch (23), the oil delivery pipeline (25) is provided with a one-way valve (22) in the middle.

2. A self-lubricating grooved butterfly valve according to claim 1, characterized in that: The notch (23) of the groove (33) is in the shape of a circular arc for facilitating filling of lubricating oil.

3. The self-lubricating grooved butterfly valve according to claim 1, characterized in that: The groove (33) of the socket (3) is matched with a convex part (6) of the fire water pipe (5).

4. The self-lubricating grooved butterfly valve according to claim 1, wherein: The upper side of the oil storage layer (21) is provided with a rubber ring (24) for sealing at the connection with the fire water pipe (5).

Images