Fire valve convenient to maintain

Abstract

The utility model relates to the technical field of fire-fighting valves, in particular to a fire-fighting valve convenient to maintain, which comprises a valve body, a rotating handle is arranged on the upper surface of the valve body, two side ends of the valve body are respectively and fixedly communicated with a water inlet pipe and a water outlet pipe, and the outer wall of the water outlet pipe is fixedly connected with a mounting plate. The outer wall of the mounting plate is fixedly connected with two symmetrical fixing plates, and the inner walls of the two fixing plates are jointly and rotationally connected with a two-way screw rod through bearings. Through the arrangement of the two-way screw, the fixing plate, the two-way screw, the threaded block, the hand wheel and the like, the threaded block can be driven to drive the arc-shaped clamping plate to be loosened or folded by rotating the hand wheel, rapid disassembly and assembly of the sealing structure are achieved, complex tools are not needed, the maintenance difficulty is greatly reduced, and the maintenance time is shortened; after being closed, the rubber sealing plate is tightly attached to the outer wall of the pipeline to form a physical sealing layer to prevent loosening and leakage.

Description

Technical Field

[0001] This utility model relates to the field of fire valve technology, specifically to a fire valve that is easy to maintain. Background Technology

[0002] Fire valves are an important accessory for controlling pipelines in industrial and building systems. Their main function is to control the flow of fluids in pipelines and prevent the spread of fire during a fire. In fire protection systems, fire valves are usually installed on various pipelines, such as water pipes and gas pipelines. They can control the flow of fluids in pipelines and prevent the spread of fire during a fire.

[0003] Currently, traditional fire valves have certain shortcomings in terms of sealing structure. Most of the valve and pipeline connection parts use a single sealing method. After long-term use, the sealing parts are prone to aging and wear, which can lead to leakage problems. This problem can make it inconvenient to disassemble and replace the sealing structure during maintenance, which not only increases the difficulty of maintenance, but may also further damage the sealing components due to improper operation, affecting the overall sealing performance of the valve. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a fire valve that is easy to maintain. It can effectively solve the problem that the sealing parts are prone to aging and wear after long-term use, which leads to leakage. This problem makes it inconvenient to disassemble and replace the sealing structure during maintenance.

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

[0006] This utility model provides a fire valve that is easy to maintain, including a valve body. A handle is provided on the upper surface of the valve body. An inlet pipe and an outlet pipe are respectively fixedly connected to both ends of the valve body. An installation plate is fixedly connected to the outer wall of the outlet pipe. Two symmetrical fixing plates are fixedly connected to the outer wall of the installation plate. The inner walls of the two fixing plates are rotatably connected to a bidirectional screw through a bearing. Two symmetrical threaded blocks are threadedly connected to the rod wall of the bidirectional screw.

[0007] Guide plates are fixedly connected to the outer walls of both threaded blocks, arc-shaped clamps are fixedly connected to the lower surfaces of both guide plates, and rubber sealing plates are fixedly connected to the lower surfaces of both arc-shaped clamps.

[0008] According to the above-mentioned fire valve that is easy to maintain, the outer wall of the water inlet pipe is provided with a flange, and the inner wall of the flange is provided with multiple evenly distributed bolt holes, and the inner walls of the multiple bolt holes are connected by bolt threads.

[0009] According to the above-mentioned fire valve that is easy to maintain, the outer walls of the two threaded blocks are fixedly connected to limit plates, the outer wall of the bidirectional screw is rotatably connected to a clamping plate through a bearing, and the inner walls of the two limit plates and the inner wall of the clamping plate are slidably connected to a limit rod.

[0010] According to the above-mentioned fire valve that is easy to maintain, the curvature of the two arc-shaped clamps is the same as that of the outlet pipe, and the two rubber sealing plates are spliced ​​together and sealed to the outer wall of the outlet pipe.

[0011] According to the aforementioned fire valve designed for easy maintenance, the lower surface of the rubber sealing plate is provided with serrated anti-slip protrusions, the material of which is nitrile rubber.

[0012] According to the above-mentioned fire valve that is easy to maintain, one end of the bidirectional screw is fixedly connected to a handwheel, and the outer wall of the handwheel is provided with anti-slip texture.

[0013] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0014] With the help of a double-acting screw, a fixed plate, a double-acting screw, a threaded block, and a handwheel, the threaded block can be driven to open or close the arc-shaped clamp by turning the handwheel, which can quickly disassemble and assemble the sealing structure without the need for complicated tools, greatly reducing the difficulty and time of maintenance. At the same time, the arc of the clamp is consistent with the water outlet pipe. After closing, the rubber sealing plate is tightly attached to the outer wall of the pipe to form a physical sealing layer to prevent loosening and leakage. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a partial structural diagram of the present invention. Figure 1 ;

[0018] Figure 3 This is a partial structural diagram of the present invention. Figure 2 .

[0019] Reference numerals in the attached diagram: 1. Valve body; 2. Rotary handle; 3. Inlet pipe; 4. Outlet pipe; 5. Mounting plate; 6. Fixing plate; 7. Double-acting screw; 8. Threaded block; 9. Guide plate; 10. Arc-shaped clamping plate; 11. Rubber sealing plate; 12. Flange; 13. Limiting plate; 14. Clamping plate; 15. Limiting rod; 16. Handwheel. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] The present invention will be further described below with reference to the embodiments.

[0022] Example: Refer to Figures 1 to 3 A fire valve designed for easy maintenance includes a valve body 1. A handle 2 is provided on the upper surface of the valve body 1. An inlet pipe 3 and an outlet pipe 4 are fixedly connected to both ends of the valve body 1, respectively. An installation plate 5 is fixedly connected to the outer wall of the outlet pipe 4. Two symmetrical fixing plates 6 are fixedly connected to the outer wall of the installation plate 5. A bidirectional screw 7 is rotatably connected to the inner wall of the two fixing plates 6 through bearings. A handwheel 16 is fixedly connected to one end of the bidirectional screw 7. The outer wall of the handwheel 16 is provided with anti-slip texture. Two symmetrical threaded blocks 8 are threadedly connected to the rod wall of the bidirectional screw 7. Limiting plates 13 are fixedly connected to the outer wall of the two threaded blocks 8. A clamping plate 14 is rotatably connected to the outer wall of the bidirectional screw 7 through bearings. A limiting rod 15 is slidably connected between the inner walls of the two limiting plates 13 and the inner wall of the clamping plate 14. The sliding fit design between the limiting rod 15 and the limiting plate 13 can prevent the threaded blocks 8 from shifting when moving, ensuring stable and accurate maintenance operations and avoiding damage to components due to improper disassembly.

[0023] Guide plates 9 are fixedly connected to the outer walls of the two threaded blocks 8. Arc-shaped clamps 10 are fixedly connected to the lower surfaces of the two guide plates 9. Rubber sealing plates 11 are fixedly connected to the lower surfaces of the two arc-shaped clamps 10. The arc of the two arc-shaped clamps 10 is the same as the arc of the water outlet pipe 4. After the two rubber sealing plates 11 are spliced ​​together, they are sealed to the outer wall of the water outlet pipe 4. The lower surface of the rubber sealing plate 11 is provided with serrated anti-slip protrusions. The anti-slip protrusions are made of nitrile rubber. The rubber sealing plate 11 is made of nitrile rubber, which has wear-resistant, oil-resistant and anti-aging properties. It can meet the long-term use requirements of the fire protection system and reduce the sealing failure problem caused by material aging.

[0024] The outer wall of the inlet pipe 3 is provided with a flange 12. The inner wall of the flange 12 has multiple evenly distributed bolt holes, and the inner walls of the multiple bolt holes are connected by bolt threads. The flange 12 of the inlet pipe 3 is fixed to the pipe through the evenly distributed bolt holes to form a rigid sealing interface, which is suitable for high-pressure fluid environments. Through the provided bidirectional screw 7, fixing plate 6, threaded block 8, and handwheel 16, the threaded block 8 can be driven to loosen or close the arc-shaped clamp 10 by turning the handwheel 16, realizing the quick disassembly and assembly of the sealing structure without complicated tools, greatly reducing the maintenance difficulty and shortening the maintenance time. At the same time, the arc of the arc-shaped clamp 10 is consistent with that of the outlet pipe 4. After closing, the rubber sealing plate 11 is tightly attached to the outer wall of the pipe to form a physical sealing layer to prevent loosening and leakage.

[0025] The working principle of this utility model is as follows:

[0026] When the handwheel 16 is turned, the bidirectional screw 7 rotates synchronously. Since the threads at both ends of the bidirectional screw 7 turn in opposite directions, its rotation drives the two threaded blocks 8 to move towards or away from each other along the screw axis: when moving towards each other, the threaded blocks 8 drive the arc-shaped clamping plate 10 to close; when moving in the opposite direction, the arc-shaped clamping plate 10 loosens. The limiting plate 13 on the outer wall of the threaded block 8 slides in cooperation with the limiting rod 15, and the clamping plate 14 fixes the position of the limiting rod 15 to prevent the threaded blocks 8 from shifting or rotating during movement, ensuring that the arc-shaped clamping plate 10 is stably aligned. During installation and sealing, turning the handwheel 16 rotates the bidirectional screw 7, driving the two threaded blocks 8 to move towards each other, causing the guide plate 9 and the arc-shaped clamping plate 10 to close towards the central axis of the water outlet pipe 4. The curvature of the arc-shaped clamping plate 10 is consistent with the outer wall of the water outlet pipe 4. After closing, the rubber sealing plate 11 tightly adheres to the pipe surface, forming a physical sealing layer. The serrated anti-slip protrusions on the lower surface of the rubber sealing plate 11 increase friction, enhance the sealing effect, and prevent loosening and leakage. During maintenance and disassembly, turn the handwheel 16 in the opposite direction, and the double screw 7 drives the threaded block 8 to move in the opposite direction. The arc-shaped clamp 10 is loosened and moved away from the water outlet pipe 4. The arc-shaped clamp 10 and the rubber sealing plate 11 can be quickly disassembled without tools, which is convenient for inspection and replacement of aging parts.

[0027] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fire valve for easy maintenance, characterized in that, The valve includes a valve body (1), on the upper surface of which is provided a handle (2). The two ends of the valve body (1) are respectively fixedly connected to an inlet pipe (3) and an outlet pipe (4). The outer wall of the outlet pipe (4) is fixedly connected to an installation plate (5). The outer wall of the installation plate (5) is fixedly connected to two symmetrical fixing plates (6). The inner walls of the two fixing plates (6) are connected to a bidirectional screw (7) through bearings. The rod wall of the bidirectional screw (7) is threadedly connected to two symmetrical threaded blocks (8). Guide plates (9) are fixedly connected to the outer walls of the two threaded blocks (8), arc-shaped clamps (10) are fixedly connected to the lower surfaces of the two guide plates (9), and rubber sealing plates (11) are fixedly connected to the lower surfaces of the two arc-shaped clamps (10).

2. A maintenance-friendly fire valve according to claim 1, characterized in that The outer wall of the water inlet pipe (3) is provided with a flange (12), and the inner wall of the flange (12) is provided with multiple evenly distributed bolt holes, and the inner walls of the multiple bolt holes are connected by bolt threads.

3. The fire valve for easy maintenance according to claim 1, characterized in that, The outer walls of the two threaded blocks (8) are fixedly connected to limit plates (13), and the outer wall of the bidirectional screw (7) is rotatably connected to a clamping plate (14) through a bearing. The inner walls of the two limit plates (13) and the inner wall of the clamping plate (14) are slidably connected to a limit rod (15).

4. The fire valve for easy maintenance according to claim 1, characterized in that, The arc of the two arc-shaped clamps (10) is the same as the arc of the water outlet pipe (4), and the two rubber sealing plates (11) are joined together and sealed to the outer wall of the water outlet pipe (4).

5. A fire valve that is easy to maintain according to claim 1, characterized in that, The lower surface of the rubber sealing plate (11) is provided with serrated anti-slip protrusions, and the anti-slip protrusions are made of nitrile rubber.

6. A fire valve that is easy to maintain according to claim 1, characterized in that, One end of the bidirectional screw (7) is fixedly connected to a handwheel (16), and the outer wall of the handwheel (16) is provided with anti-slip texture.

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