Gas stop valve for fire engineering construction pipeline

Abstract

The utility model relates to the related technical field of fire engineering, in particular to an air stopping valve for a fire engineering construction pipeline, which comprises a valve body, an air stopping mechanism is arranged on the inner side surface of the valve body, and a fixing mechanism is arranged on the upper surface of the valve body. According to the air stopping valve for the fire engineering construction pipeline, when the air stopping valve is used through the fixing mechanism, a handle is pulled, a limiting block can be driven to slide in a limiting groove, at the moment, the limiting block overcomes the elastic force of a second spring, a fixing block is separated from a fixing groove, a hand wheel is adjusted, and the valve is opened; a second spring generates elastic force to push a limiting block to reset and drive a fixing block to be inserted into a fixing groove in a sliding block, firm fixing of the hand wheel is rapidly achieved, operation is more efficient, operation time is greatly saved, operation convenience is remarkably improved, firm fixing of the hand wheel is achieved, and the hand wheel is prevented from rotating due to external force or misoperation; and the valve is stably kept in a closed state.

Description

Technical Field

[0001] This utility model relates to the technical field of fire protection engineering, and in particular to a gas shut-off valve for pipelines used in fire protection engineering construction. Background Technology

[0002] Fire protection engineering is a comprehensive and systematic project that encompasses multiple key aspects such as fire prevention, fire fighting, and personnel evacuation. It plays an irreplaceable role in safeguarding public safety and protecting people's lives and property. In the field of fire protection engineering, the stable operation of pipeline systems is crucial for fire prevention and control. As a key component of the pipeline system, the reliability of the gas shut-off valve directly affects the effectiveness of fire protection work. Therefore, a gas shut-off valve for pipelines used in fire protection engineering construction is particularly needed.

[0003] However, the gas shut-off valves used in existing fire protection engineering construction pipelines rely solely on simple handwheel fixing methods, such as ordinary threaded connections or clip fixing. In actual use, these valves are easily affected by external forces, causing the handwheel to loosen and thus the valve to open unexpectedly. Utility Model Content

[0004] The purpose of this utility model is to provide a gas shut-off valve for fire protection engineering construction pipelines, in order to solve the problem mentioned in the background art that the existing gas shut-off valves for fire protection engineering construction pipelines rely solely on a simple handwheel fixing method, such as ordinary threaded connection or snap-fit ​​fixing, which is easily affected by external forces in actual use, causing the handwheel to loosen and thus the valve to open unexpectedly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gas-stop valve for fire protection engineering construction pipelines, comprising a valve body, a first channel fixedly connected to the outer surface of the valve body, a first flange fixedly connected to one end surface of the first channel, a second channel fixedly connected to the outer surface of the valve body, a second flange fixedly connected to one end surface of the second channel, a gas-stopping mechanism provided on the inner surface of the valve body, the gas-stopping mechanism comprising a first gas through hole, a gas groove, a sealing groove, a second gas through hole, a first sealing block, a connecting block, a guide ring, a second sealing block, a first spring, a threaded rod, a connecting plate, and a handwheel, and a fixing mechanism provided on the upper surface of the valve body;

[0006] The fixing mechanism includes a sliding block, a stabilizing block, a sliding groove, a limiting groove, a limiting block, a fixing block, a limiting post, a second spring, a sliding post, a sliding post groove, a handle, and a fixing groove. A sliding block is fixedly connected to the lower surface of the connecting plate. A stabilizing block is slidably connected to the outer surface of the sliding block. A sliding groove is formed on the upper surface of the stabilizing block. A limiting groove is formed on the inner surface of the stabilizing block. A limiting block is slidably connected to the inner surface of the limiting groove. A fixing block is fixedly connected to one side surface of the limiting block. A limiting post is slidably connected to the inner surface of the limiting block. A second spring is fixedly connected to one side surface of the limiting block. A sliding post is fixedly connected to one side surface of the limiting block. A sliding post groove is formed on the inner surface of the stabilizing block. A handle is fixedly connected to one end surface of the sliding post. A fixing groove is formed on the outer surface of the sliding block.

[0007] Preferably, the outer dimension of the sliding block matches the inner dimension of the sliding groove, and the inner dimension of the limiting groove matches the outer dimension of the limiting block.

[0008] Preferably, the fixing block is slidably connected to the fixing groove, the outer dimension of the fixing block matches the inner dimension of the fixing groove, and multiple sets of limiting posts are provided on the inner surface of the limiting block.

[0009] Preferably, two sets of the second spring and the sliding post are provided on one side surface of the limiting block, the second spring is provided on the outer surface of the sliding post, and the sliding post is slidably connected to the sliding post groove.

[0010] Preferably, the inner surface of the first channel has a first gas through hole, the inner surface of the valve body has a gas groove, the inner surface of the valve body has a sealing groove, the inner surface of the second channel has a second gas through hole, the inner surface of the sealing groove is slidably connected to a first sealing block, the upper surface of the first sealing block is fixedly connected to a connecting block, the outer surface of the connecting block is fixedly connected to a guide ring, the upper surface of the connecting block is fixedly connected to a second sealing block, the upper surface of the second sealing block is fixedly connected to a first spring, the upper surface of the second sealing block is fixedly connected to a threaded rod, the upper surface of the threaded rod is fixedly connected to a connecting plate, and the upper surface of the connecting plate is fixedly connected to a handwheel.

[0011] Preferably, the first gas through hole communicates with the second gas through hole through a gas groove and a sealing groove, and the outer dimension of the first sealing block matches the inner dimension of the sealing groove.

[0012] Preferably, the outer dimension of the guide ring matches the inner dimension of the sealing groove, and multiple sets of guide rings are provided on the outer surface of the connecting block.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This gas-stop valve for fire protection engineering construction pipelines, through a fixing mechanism, allows the limiting block to slide within the limiting groove when the handle is pulled during use. At this time, the limiting block overcomes the elastic force of the second spring, causing the fixing block to disengage from the fixing groove, so as to adjust the handwheel and open the valve. When the valve is closed, releasing the handle causes the second spring to generate elastic force to push the limiting block back to its original position, causing the fixing block to insert into the fixing groove on the sliding block, quickly and firmly fixing the handwheel. This makes the operation more efficient, significantly saves operation time, and greatly improves the convenience of operation. It also ensures that the handwheel is firmly fixed, preventing the handwheel from rotating due to external force or misoperation, and ensuring that the valve remains stably closed. Attached Figure Description

[0014] Figure 1 This is a side view of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the gas-stopping mechanism of this utility model;

[0016] Figure 3 This is a cross-sectional view of the fixing mechanism of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the limiting post and the limiting block cooperating with each other in this utility model.

[0018] In the diagram: 1. Valve body; 2. First channel; 3. First flange; 4. Second channel; 5. Second flange; 6. Gas shut-off mechanism; 601. First gas through hole; 602. Gas groove; 603. Sealing groove; 604. Second gas through hole; 605. First sealing block; 606. Connecting block; 607. Guide ring; 608. Second sealing block; 609. First spring; 610. Threaded rod; 611. Connecting plate; 612. Handwheel; 7. Fixing mechanism; 701. Sliding block; 702. Stabilizing block; 703. Sliding groove; 704. Limiting groove; 705. Limiting block; 706. Fixing block; 707. Limiting post; 708. Second spring; 709. Sliding post; 710. Sliding post groove; 711. Handle; 712. Fixing groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4This utility model provides a technical solution: a gas-stop valve for fire protection engineering construction pipelines, including a valve body 1, a first channel 2 fixedly connected to the outer surface of the valve body 1, a first flange 3 fixedly connected to one end surface of the first channel 2, a second channel 4 fixedly connected to the outer surface of the valve body 1, a second flange 5 fixedly connected to one end surface of the second channel 4, a gas-stopping mechanism 6 provided on the inner surface of the valve body 1, the gas-stopping mechanism 6 including a first gas through hole 601, a gas groove 602, a sealing groove 603, a second gas through hole 604, a first sealing block 605, a connecting block 606, a guide ring 607, a second sealing block 608, a first spring 609, a threaded rod 610, a connecting plate 611 and a handwheel 612, and a fixing mechanism 7 provided on the upper surface of the valve body 1;

[0021] The fixing mechanism 7 includes a sliding block 701, a stabilizing block 702, a sliding groove 703, a limiting groove 704, a limiting block 705, a fixing block 706, a limiting post 707, a second spring 708, a sliding post 709, a sliding post groove 710, a handle 711, and a fixing groove 712. The sliding block 701 is fixedly connected to the lower surface of the connecting plate 611. The stabilizing block 702 is slidably connected to the outer surface of the sliding block 701. The upper surface of the stabilizing block 702 has a sliding groove 703, and the inner surface of the stabilizing block 702 has a limiting groove 704. The inner surface of the limiting groove 704 is slidably connected to the limiting block 705, limiting... A fixing block 706 is fixedly connected to one side surface of block 705. A limiting post 707 is slidably connected to the inner side surface of limiting block 705. A second spring 708 is fixedly connected to one side surface of limiting block 705. A sliding post 709 is fixedly connected to one side surface of limiting block 705. A sliding post groove 710 is formed on the inner side surface of stabilizing block 702. A handle 711 is fixedly connected to one end surface of sliding post 709. A fixing groove 712 is formed on the outer side surface of sliding block 701. The sliding block 701, stabilizing block 702, sliding groove 703, limiting groove 704, limiting block 705, fixing block 706, and limiting post 707 are connected together. The arrangement of the second spring 708, sliding column 709, sliding column groove 710, handle 711, and fixing groove 712 allows the valve to be adjusted during use. Pulling the handle 711 causes the sliding column 709 to slide within the sliding column groove 710 on the inner side of the stabilizing block 702, which in turn causes the limiting block 705 to slide within the limiting groove 704 on the inner side of the stabilizing block 702. During this process, the limiting block 705 overcomes the elastic force of the second spring 708, causing the fixing block 706 to disengage from the fixing groove 712 on the outer side of the sliding block 701. Then, the handwheel 612 can rotate freely, driving the second sealing block 60 through the threaded rod 610. 8. The first sealing block 605 and other components of the air-stopping mechanism 6 move, thereby changing the air-permeable state of the valve. When the valve is closed, the handle 711 is released, and the second spring 708 releases its stored elastic potential energy, pushing the limiting block 705 to slide in the limiting groove 704 to the initial position. The movement of the limiting block 705 causes the fixing block 706 to be precisely inserted into the fixing groove 712 of the sliding block 701, thereby fixing the sliding block 701. Since the sliding block 701 is associated with the handwheel 612, the handwheel 612 is firmly fixed, preventing the handwheel 612 from rotating due to external force or misoperation, and ensuring that the valve remains stably closed.

[0022] Furthermore, the outer dimension of the sliding block 701 matches the inner dimension of the sliding groove 703, and the inner dimension of the limiting groove 704 matches the outer dimension of the limiting block 705. Through the setting of the limiting groove 704 and the limiting block 705, the limiting groove 704 limits the limiting block 705 during use, so that the limiting block 705 moves more stably under the push of the second spring 708.

[0023] Furthermore, the fixing block 706 is slidably connected to the fixing groove 712, and the outer dimensions of the fixing block 706 match the inner dimensions of the fixing groove 712. Multiple sets of limiting posts 707 are provided on the inner surface of the limiting block 705. With the setting of the limiting posts 707, during use, multiple sets of limiting posts 707 are evenly arranged on the inner surface of the limiting block 705 to assist the limiting block 705 in sliding smoothly and prevent the limiting block 705 from tilting or shaking during the sliding process, so that the limiting block 705 is more stable during the sliding process.

[0024] Furthermore, two sets of second springs 708 and sliding posts 709 are provided on one side surface of the limiting block 705. The second springs 708 are provided on the outer surface of the sliding posts 709, and the sliding posts 709 are slidably connected to the sliding post groove 710. With the provision of the second springs 708, when the handwheel 612 is subjected to external impact force and attempts to rotate, the two sets of second springs 708 can jointly provide stable resistance, preventing a single second spring 708 from losing elasticity or being damaged due to excessive force, thereby more effectively fixing the handwheel 612 and preventing the handwheel 612 from rotating accidentally.

[0025] Furthermore, a first gas through-hole 601 is formed on the inner surface of the first channel 2, a gas groove 602 is formed on the inner surface of the valve body 1, a sealing groove 603 is formed on the inner surface of the valve body 1, a second gas through-hole 604 is formed on the inner surface of the second channel 4, a first sealing block 605 is slidably connected to the inner surface of the sealing groove 603, a connecting block 606 is fixedly connected to the upper surface of the first sealing block 605, a guide ring 607 is fixedly connected to the outer surface of the connecting block 606, a second sealing block 608 is fixedly connected to the upper surface of the connecting block 606, and a guide ring 607 is fixedly connected to the upper surface of the second sealing block 608. A first spring 609 is included. A threaded rod 610 is fixedly connected to the upper surface of the second sealing block 608. A connecting plate 611 is fixedly connected to the upper surface of the threaded rod 610. A handwheel 612 is fixedly connected to the upper surface of the connecting plate 611. Through the arrangement of the first gas passage 601, gas groove 602, sealing groove 603, second gas passage 604, first sealing block 605, connecting block 606, guide ring 607, second sealing block 608, first spring 609, threaded rod 610, connecting plate 611, and handwheel 612, in use, when the handwheel 612 rotates, it drives the threaded rod 610 to rotate. The second sealing block 608 moves up and down. Since the second sealing block 608 is fixedly connected to the connecting block 606, and the connecting block 606 is connected to the first sealing block 605, the first sealing block 605 also moves with the second sealing block 608. The guide ring 607 on the outside of the connecting block 606 slides in the sealing groove 603. During the valve opening process, the handwheel 612 rotates, and the threaded rod 610 drives the second sealing block 608 to move upward. The first spring 609 is compressed, and the first sealing block 605 gradually disengages from the sealing groove 603. At this time, the first gas through hole 601 communicates with the second gas through the gas groove 602 and the sealing groove 603. The body through-hole 604 is connected, and gas can flow from the first channel 2 through the first gas through-hole 601, gas groove 602, sealing groove 603, and second gas through-hole 604, and finally enter the second channel 4 to realize gas flow. During the valve closing process, the handwheel 612 rotates in the other direction, and the threaded rod 610 drives the second sealing block 608 to move downward. The first spring 609 gradually returns to its original state and provides downward pressure. The first sealing block 605 re-inserts into the sealing groove 603, blocking the channel between the first gas through-hole 601 and the second gas through-hole 604, thereby preventing gas flow and completing the valve closing action.

[0026] Furthermore, the first gas through-hole 601 communicates with the second gas through-hole 604 through the gas groove 602 and the sealing groove 603. The outer dimension of the first sealing block 605 matches the inner dimension of the sealing groove 603. With the arrangement of the first sealing block 605 and the sealing groove 603, when the valve is in the closed state, the first sealing block 605 can fit tightly in the sealing groove 603, effectively preventing gas from passing through the channel between the first gas through-hole 601 and the gas groove 602, preventing gas leakage, thereby achieving a highly efficient sealing effect and ensuring the airtightness of the valve when it is closed.

[0027] Furthermore, the outer dimensions of the guide ring 607 match the inner dimensions of the sealing groove 603. Multiple sets of guide rings 607 are provided on the outer surface of the connecting block 606. With the provision of guide rings 607, when the first sealing block 605 needs to move up and down in the sealing groove 603 during use, the guide rings 607 provide accurate guidance for the first sealing block 605, so that the first sealing block 605 always moves along the predetermined direction without deviation or shaking.

[0028] Working principle: When the handwheel 612 rotates, it drives the second sealing block 608 to move up and down via the threaded rod 610. Since the second sealing block 608 is fixedly connected to the connecting block 606, and the connecting block 606 is connected to the first sealing block 605, the first sealing block 605 also moves with the second sealing block 608. The guide ring 607 on the outer side of the connecting block 606 slides within the sealing groove 603. During valve opening, the handwheel 612 rotates, and the threaded rod 610 drives the second sealing block 608 to move upward. The first spring 609 is compressed, and the first sealing block 605 gradually disengages from the sealing groove 603. When the first gas passage 601 is connected to the second gas passage 604 through the gas groove 602 and the sealing groove 603, gas can flow from the first channel 2 through the first gas passage 601, the gas groove 602, the sealing groove 603, and the second gas passage 604, and finally enter the second channel 4, realizing gas flow. During the valve closing process, the handwheel 612 rotates in the other direction, the threaded rod 610 drives the second sealing block 608 to move downward, the first spring 609 gradually returns to its original state and provides downward pressure, the first sealing block 605 re-inserts into the sealing groove 603, blocking the connection between the first gas passage 601 and the second gas passage 604. The passage between the two gas through holes 604 prevents gas flow and closes the valve. When the valve needs to be adjusted, the handle 711 is pulled, and the sliding column 709 slides in the sliding column groove 710 inside the stabilizing block 702, causing the limiting block 705 to slide in the limiting groove 704 inside the stabilizing block 702. During this process, the limiting block 705 will overcome the elastic force of the second spring 708 and move, causing the fixing block 706 to disengage from the fixing groove 712 outside the sliding block 701. Then the handwheel 612 can rotate freely, driving the second sealing block 608 and the first sealing block 608 through the threaded rod 610. The movement of the venting mechanism 6 components, such as block 605, changes the venting state of the valve. When the valve is closed, releasing the handle 711 releases the stored elastic potential energy of the second spring 708, pushing the limiting block 705 to slide back to its initial position within the limiting groove 704. The movement of the limiting block 705 causes the fixing block 706 to precisely insert into the fixing groove 712 of the sliding block 701, thus fixing the sliding block 701. Since the sliding block 701 is associated with the handwheel 612, the handwheel 612 is firmly fixed, preventing it from rotating due to external force or misoperation, and ensuring that the valve remains stably closed.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas shut-off valve for fire protection engineering construction pipelines, comprising a valve body (1), characterized in that: The outer surface of the valve body (1) is fixedly connected to a first channel (2), and a first flange (3) is fixedly connected to one end surface of the first channel (2). The outer surface of the valve body (1) is fixedly connected to a second channel (4), and a second flange (5) is fixedly connected to one end surface of the second channel (4). The inner surface of the valve body (1) is provided with a gas-stopping mechanism (6). The gas-stopping mechanism (6) includes a first gas through hole (601), a gas groove (602), a sealing groove (603), a second gas through hole (604), a first sealing block (605), a connecting block (606), a guide ring (607), a second sealing block (608), a first spring (609), a threaded rod (610), a connecting plate (611), and a handwheel (612). The upper surface of the valve body (1) is provided with a fixing mechanism (7). The fixing mechanism (7) includes a sliding block (701), a stabilizing block (702), a sliding groove (703), a limiting groove (704), a limiting block (705), a fixing block (706), a limiting post (707), a second spring (708), a sliding post (709), a sliding post groove (710), a handle (711), and a fixing groove (712). The sliding block (701) is fixedly connected to the lower surface of the connecting plate (611). The stabilizing block (702) is slidably connected to the outer surface of the sliding block (701). The upper surface of the stabilizing block (702) is provided with a sliding groove (703), and the inner surface of the stabilizing block (702) is provided with a limiting groove (704). The inner surface of the limiting groove (704) is slidably connected to a limiting block (705), one side surface of the limiting block (705) is fixedly connected to a fixing block (706), the inner surface of the limiting block (705) is slidably connected to a limiting post (707), one side surface of the limiting block (705) is fixedly connected to a second spring (708), one side surface of the limiting block (705) is fixedly connected to a sliding post (709), the inner surface of the stabilizing block (702) is provided with a sliding post groove (710), one end surface of the sliding post (709) is fixedly connected to a handle (711), and the outer surface of the sliding block (701) is provided with a fixing groove (712).

2. The gas shut-off valve for fire protection engineering construction pipelines according to claim 1, characterized in that: The outer dimension of the sliding block (701) matches the inner dimension of the sliding groove (703), and the inner dimension of the limiting groove (704) matches the outer dimension of the limiting block (705).

3. The gas shut-off valve for fire protection engineering construction pipelines according to claim 1, characterized in that: The fixing block (706) is slidably connected to the fixing groove (712), the outer dimension of the fixing block (706) matches the inner dimension of the fixing groove (712), and the limiting post (707) is provided in multiple sets on the inner surface of the limiting block (705).

4. The gas shut-off valve for fire protection engineering construction pipelines according to claim 1, characterized in that: Two sets of the second spring (708) and the sliding post (709) are provided on one side surface of the limiting block (705). The second spring (708) is provided on the outer surface of the sliding post (709), and the sliding post (709) is slidably connected to the sliding post groove (710).

5. A gas-stop valve for fire protection engineering construction pipelines according to claim 1, characterized in that: The inner surface of the first channel (2) is provided with a first gas through hole (601), the inner surface of the valve body (1) is provided with a gas groove (602), the inner surface of the valve body (1) is provided with a sealing groove (603), the inner surface of the second channel (4) is provided with a second gas through hole (604), the inner surface of the sealing groove (603) is slidably connected to a first sealing block (605), and the upper surface of the first sealing block (605) is fixedly connected to a connecting block (606). A guide ring (607) is fixedly connected to the outer surface of the connecting block (606). A second sealing block (608) is fixedly connected to the upper surface of the connecting block (606). A first spring (609) is fixedly connected to the upper surface of the second sealing block (608). A threaded rod (610) is fixedly connected to the upper surface of the second sealing block (608). A connecting plate (611) is fixedly connected to the upper surface of the threaded rod (610). A handwheel (612) is fixedly connected to the upper surface of the connecting plate (611).

6. A gas-stop valve for fire protection engineering construction pipelines according to claim 5, characterized in that: The first gas through hole (601) communicates with the second gas through hole (604) through the gas groove (602) and the sealing groove (603), and the outer dimension of the first sealing block (605) matches the inner dimension of the sealing groove (603).

7. A gas-stop valve for fire protection engineering construction pipelines according to claim 5, characterized in that: The outer dimension of the guide ring (607) matches the inner dimension of the sealing groove (603), and multiple sets of the guide ring (607) are provided on the outer surface of the connecting block (606).

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