Flow-limiting fire extinguisher valve body convenient to assemble
By introducing mounting components and rubber inserts into the fire extinguisher valve body, the installation and disassembly process of the valve body and the cylinder tube is simplified, the problem of precise alignment of the locking teeth is solved, the maintenance and replacement efficiency of the fire extinguisher is improved, and the sealing performance is ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-03-03
AI Technical Summary
The existing fire extinguisher valve body requires precise installation of the locking teeth, which is difficult to align. Rust or impurities increase the difficulty of installation. Rust or deformation of the locking teeth during disassembly makes them difficult to separate, affecting the efficiency of maintenance and replacement.
The design incorporates installation components, including a U-shaped sleeve, sliding block, insert rod, compression spring, and pressing sleeve. Threaded connections and auxiliary fixing structures simplify the installation and removal process of the valve body and bottle tube, while straps and rubber supports enhance sealing.
It enables convenient installation and disassembly of the valve body and the bottle tube, reduces the difficulty of operation, improves the maintenance and replacement efficiency of fire extinguishers, and ensures sealing to prevent gas pressure leakage.
Smart Images

Figure CN223959110U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire extinguisher technology, specifically to a flow-limiting fire extinguisher valve body that is easy to assemble. Background Technology
[0002] A fire extinguisher is a portable fire-fighting tool containing chemicals used to extinguish fires. It is a common piece of fire-fighting equipment, stored in public places or areas where fires may occur. Different types of fire extinguishers contain different components and are designed for different types of fires. Care must be taken when using them to avoid adverse effects and potential dangers. Fire extinguishers are often overlooked but are essential fire-fighting tools, especially in today's world of high-rise buildings and interiors decorated with large amounts of wood, plastic, and fabric. Without proper fire extinguishing equipment, a fire could lead to disaster.
[0003] Publication number CN221998722U discloses a fire extinguisher valve that is easy to assemble. By setting a first locking tooth and a second locking tooth to engage in opposite directions, the first locking tooth firmly locks the second locking tooth, preventing the valve body assembly from rotating in the opposite direction. This prevents the connection between the first spring and the fire extinguisher bottle mouth from loosening. Furthermore, the pushing force of the first spring makes the threaded connection tighter. Even when encountering bumps and collisions, the first locking tooth can firmly lock the second locking tooth, preventing the fire extinguisher from leaking gas pressure due to bumps, thus ensuring the service life of the fire extinguisher and making it suitable for a wider range of scenarios. However, this patent still has the following problems in actual use:
[0004] By setting the first and second locking teeth to mesh in opposite directions, the first locking tooth firmly holds the second locking tooth, preventing the valve body assembly from rotating in the opposite direction. This prevents the connection between the first spring and the fire extinguisher bottle opening from loosening. Furthermore, the pushing force of the first spring makes the threaded connection tighter. Even when encountering bumps and collisions, the first locking tooth can firmly hold the second locking tooth, preventing the fire extinguisher from leaking gas pressure due to bumps. This ensures the service life of the fire extinguisher and makes it suitable for a wider range of scenarios. However, the installation between the first and second locking teeth requires precise alignment of the teeth, which demands a high level of skill from the operator. If the locking teeth are rusty or have impurities, it will further increase the difficulty of installation. During disassembly, rusty or deformed locking teeth may also make separation difficult, delaying the maintenance and replacement of the fire extinguishing equipment.
[0005] A flow-limiting fire extinguisher valve body that is easy to assemble is proposed to solve the problems mentioned above. Utility Model Content
[0006] The purpose of this utility model is to provide a conveniently assembled flow-limiting fire extinguisher valve body to solve the problems mentioned in the background art. Currently, by setting a first locking tooth and a second locking tooth in reverse engagement, the first locking tooth firmly engages the second locking tooth, preventing the valve body assembly from rotating in the opposite direction. This prevents the connection between the first spring and the fire extinguisher bottle opening from loosening. Furthermore, the pushing force of the first spring makes the threaded connection tighter. Even when encountering bumps and collisions, the first locking tooth can firmly engage the second locking tooth, preventing the fire extinguisher from leaking gas pressure due to bumps, thus ensuring the service life of the fire extinguisher and making it suitable for a wider range of scenarios. However, when installing between the first and second locking teeth, precise alignment of the locking teeth is required, which demands a high level of skill from the operator. Furthermore, if the locking teeth are rusty or contain impurities, it will further increase the difficulty of installation. During disassembly, rusty or deformed locking teeth may also make separation difficult, delaying the maintenance and replacement of the fire extinguishing equipment.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a conveniently assembled flow-limiting fire extinguisher valve body, comprising a bottle body, wherein a strap is fixedly installed on the surface of the bottle body near the bottom;
[0008] A placement component is fixedly installed on one side surface of the strap, and a spray pipe is connected through the inside of the placement component. A bottle tube is connected through the middle of the top surface of the bottle body, and a valve body is threadedly connected to the top surface of the bottle tube. The spray pipe is connected through the valve body.
[0009] Also includes:
[0010] A sealing ring is fixedly installed on the bottom surface of the valve body, and an installation component is provided on the bottom surface of the sealing ring;
[0011] The mounting components include a U-shaped sleeve that is fixedly connected to the sealing ring;
[0012] The U-shaped sleeve has a sliding groove inside.
[0013] Preferably, a sliding block is slidably connected inside the sliding groove, and a plug rod is through-connected inside the sliding block, with one side surface of the plug rod through-connected to the U-shaped sleeve.
[0014] Preferably, a connecting block is fixedly connected to the side surface of the insert rod away from the sliding block, a compression spring is sleeved on the side surface of the connecting block away from the insert rod, and a pressing sleeve is fixedly connected to the side surface of the compression spring away from the connecting block, and the pressing sleeve is sleeved and connected to the U-shaped sleeve.
[0015] Preferably, the sliding block has symmetrically formed moving grooves inside, and a moving block is slidably connected inside the moving groove. The moving block is fixedly connected to the insert rod.
[0016] Preferably, the sliding block has a through groove in the middle, and the through groove is connected to the insert rod.
[0017] Preferably, the placement element is made of rubber.
[0018] Preferably, both the interior of the valve body and the surface of the bottle tube are provided with threaded textures.
[0019] Compared with the prior art, the beneficial effects of this utility model are: This conveniently assembled flow-limiting fire extinguisher valve body, after the valve body and the cylinder tube are connected together by threaded texture, and by setting an installation component, can play an auxiliary role in fixing the installation between the cylinder tube and the valve body, thus making the disassembly and installation of the valve body more convenient. The specific details are as follows:
[0020] 1. By setting up the installation components, when it is necessary to install between the valve body and the bottle tube, pressing the pressing sleeve will compress the compression spring, causing the compression spring to deform. Simultaneously, as the pressing sleeve moves, the two irregular protrusions at the bottom of the pressing sleeve will compress the sliding block, causing the sliding block to move along the inclined surface of the protrusions at the bottom of the pressing sleeve. The movement of the sliding block will also drive the movement of the moving groove. The moving groove is inclined, allowing the moving block to slide adaptively within it. A through groove is provided in the middle of the sliding block to allow it to move. The moving block is fixedly connected to the insert rod, so that the horizontal movement of the sliding block causes the moving groove to drive the moving block to rise. The upward movement of the moving block... The valve body is raised, allowing the insertion rod to move. After the insertion rod moves to a certain position, the valve body and the bottle tube are connected by a threaded rotation. Then, by loosening the pressure on the pressing sleeve, the compression spring will press the connecting block and the pressing sleeve. After the compression spring presses the connecting block onto the U-shaped sleeve, the remaining elastic force of the compression spring will be transmitted to the pressing sleeve, thereby causing the pressing sleeve to move. At the same time, when the pressing sleeve moves upward, it will also press the sliding block, causing the sliding block to slide to the bottom of the moving groove. When the moving block moves, it will drive the insertion rod to move, so that the insertion rod and the bottle tube surface have a through hole for connection. This provides auxiliary fixation between the bottle tube and the valve body, making it easier to disassemble and install the valve body.
[0021] 2. By setting a strap and a placement component, the placement component is made of rubber and has a certain elasticity. The placement component can clamp the nozzle. At the same time, by setting a sealing ring, a seal can be formed at the connection between the valve body and the bottle tube, thereby preventing air leakage. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;
[0024] Figure 3 This utility model Figure 2 Enlarged structural diagram of region A in the middle;
[0025] Figure 4 This is a schematic diagram of the overall internal structure of the mounting component in this utility model;
[0026] Figure 5 This is a schematic diagram of the connection structure between the movable groove and the movable block in this utility model;
[0027] Figure 6 This is a schematic diagram of the connection structure between the sliding block and the insertion rod in this utility model.
[0028] In the diagram: 1. Bottle body; 2. Strap; 3. Placement component; 4. Spray nozzle; 5. Bottle tube; 6. Valve body; 7. Sealing ring; 8. Mounting assembly; 801. U-shaped sleeve; 802. Sliding groove; 803. Sliding block; 804. Insert rod; 805. Connecting block; 806. Compression spring; 807. Pressing sleeve; 808. Moving groove; 809. Moving block; 810. Through groove. Detailed Implementation
[0029] 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.
[0030] Please see Figure 1-6 This utility model provides a technical solution: a conveniently assembled flow-limiting fire extinguisher valve body, including a bottle body 1, with a strap 2 fixedly installed on the surface of the bottle body 1 near the bottom; a placement component 3 is fixedly installed on one side surface of the strap 2, and a nozzle 4 is connected through the interior of the placement component 3; a bottle tube 5 is connected through the middle of the top surface of the bottle body 1, and a valve body 6 is threadedly connected to the top surface of the bottle tube 5; the nozzle 4 is connected through the valve body 6; it also includes: a sealing ring 7 fixedly installed on the bottom surface of the valve body 6, and an installation component 8 provided on the bottom surface of the sealing ring 7; wherein, the installation component 8 includes a U-shaped sleeve 801 fixedly connected to the sealing ring 7; wherein, the U-shaped sleeve 801 has a sliding groove 802 inside, such as... Figure 1-6As shown, after the valve body 6 and the bottle tube 5 are connected together by threaded texture, the installation component 8 is set to provide an auxiliary fixing effect for the installation between the bottle tube 5 and the valve body 6, so that the valve body 6 can be disassembled and installed more conveniently. At the same time, the valve body 6 is existing technology and its working principle is the same as existing technology.
[0031] A sliding block 803 is slidably connected inside the sliding groove 802. A rod 804 is through-connected inside the sliding block 803. One side surface of the rod 804 is through-connected to a U-shaped sleeve 801. A connecting block 805 is fixedly connected to the side surface of the rod 804 away from the sliding block 803. A compression spring 806 is sleeved on the side surface of the connecting block 805 away from the rod 804. A pressing sleeve 807 is fixedly connected to the side surface of the compression spring 806 away from the connecting block 805. The pressing sleeve 807 is sleeved and connected to the U-shaped sleeve 801. A symmetrical moving groove 808 is formed inside the sliding block 803. A moving block 809 is slidably connected inside the moving groove 808. The moving block 809 is fixedly connected to the rod 804. A through groove 810 is formed in the middle of the sliding block 803. The through groove 810 is through-connected to the rod 804. Figure 3-6 As shown, by connecting the valve body 6 and the bottle tube 5 with a threaded rotation, the valve body 6 and the bottle tube 5 are connected together. By loosening the pressing sleeve 807, the compression spring 806 will press the connecting block 805 and the pressing sleeve 807. After the compression spring 806 presses the connecting block 805 onto the U-shaped sleeve 801, the remaining elastic force of the compression spring 806 will be transmitted to the pressing sleeve 807, thereby causing the pressing sleeve 807 to move. At the same time, when the pressing sleeve 807 moves upward, it will also press the sliding block 803, thereby causing the moving block 809 to slide towards the bottom of the moving groove 808. When the moving block 809 moves, it will drive the insertion rod 804 to move, so that the insertion rod 804 is connected to the hole on the surface of the bottle tube 5, thereby achieving the auxiliary fixing effect between the bottle tube 5 and the valve body 6, thus ensuring that the valve body 6 can be disassembled and installed more conveniently.
[0032] Placement 3 is made of rubber, such as Figure 1 As shown, it has a certain elasticity and the placement part 3 can clamp the nozzle 4.
[0033] Both the interior of the valve body 6 and the surface of the bottle tube 5 are provided with threaded textures, such as... Figure 2 As shown, the threaded texture between the inside of the valve body 6 and the bottle tube 5 allows the inside of the valve body 6 and the bottle tube 5 to be threaded together, thus facilitating the installation between the inside of the valve body 6 and the bottle tube 5.
[0034] Working principle: Before using this easy-to-assemble flow-limiting fire extinguisher valve body, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 6 As shown, firstly, by setting the installation component 8, when it is necessary to install between the valve body 6 and the bottle tube 5, pressing the pressing sleeve 807 causes the pressing sleeve 807 to compress the compression spring 806, thereby causing the compression spring 806 to deform. Simultaneously, as the pressing sleeve 807 moves, the two irregular protrusions at the bottom of the pressing sleeve 807 compress the sliding block 803, causing the sliding block 803 to move along the inclined surface of the protrusions at the bottom of the pressing sleeve 807. At the same time, the sliding block 803... The movement allows the movable groove 808 to move. The movable groove 808 is inclined, allowing the movable block 809 to slide adaptively within it. A through groove 810 is provided in the center of the sliding block 803, allowing it to move. The movable block 809 is fixedly connected to the insert rod 804. The horizontal movement of the movable groove 808, along with the horizontal movement of the sliding block 803, causes the movable groove 808 to lift the movable block 809. The rising of block 809 allows the insertion rod 804 to move. After the insertion rod 804 moves to a certain position, the valve body 6 and the bottle tube 5 are connected by a threaded rotation. Then, by loosening the compression of the pressing sleeve 807, the compression spring 806 will compress the connecting block 805 and the pressing sleeve 807. After the compression spring 806 compresses the connecting block 805 onto the U-shaped sleeve 801, the remaining elastic force of the compression spring 806 will be transmitted to the pressing sleeve. The pressing sleeve 807 moves upward, which in turn presses the sliding block 803, causing the moving block 809 to slide towards the bottom of the moving groove 808. When the moving block 809 moves, it drives the insertion rod 804 to move, so that the insertion rod 804 is connected to the hole on the surface of the bottle tube 5. This provides auxiliary fixation between the bottle tube 5 and the valve body 6, making it easier to disassemble and install the valve body 6.
[0035] Secondly, by setting the strap 2 and the placement part 3, which is made of rubber and has a certain elasticity, the placement part 3 can clamp the nozzle 4. At the same time, by setting the sealing ring 7, the connection between the valve body 6 and the bottle tube 5 can be sealed, thereby preventing air leakage.
[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A convenient assembly of flow limiting fire extinguisher valve body, comprising a bottle body (1), the surface of the bottom of the bottle body (1) is fixedly installed with a bandage (2); One side surface of the bandage (2) is fixedly installed with a placing piece (3), the inside of the placing piece (3) is through connected with a spray pipe (4), the top surface of the bottle body (1) is through connected with a bottle pipe (5) in the middle, the top surface of the bottle pipe (5) is screw connected with a valve body (6), the spray pipe (4) is through connected with the valve body (6); characterized in that Also includes: The bottom surface of the valve body (6) is fixedly installed with a sealing ring (7), the bottom surface of the sealing ring (7) is provided with an installation assembly (8); Among them, the installation assembly (8) includes a U-shaped sleeve (801) fixedly connected with the sealing ring (7); Wherein, the inside of the U-shaped sleeve (801) is provided with a sliding groove (802).
2. A conveniently assembled flow-restricted fire extinguisher valve body according to claim 1, characterized in that: The inside of the sliding groove (802) is slidably connected with a sliding block (803), the inside of the sliding block (803) is through connected with a plug rod (804), one side surface of the plug rod (804) is through connected with the U-shaped sleeve (801).
3. A conveniently assembled flow-restricted fire extinguisher valve body according to claim 2, characterised in that: The side surface of the plug rod (804) away from the sliding block (803) is fixedly connected with a connecting block (805), the side surface of the connecting block (805) away from the plug rod (804) is sleeved with a compression spring (806), the side surface of the compression spring (806) away from the connecting block (805) is fixedly connected with a pressing sleeve (807), the pressing sleeve (807) is sleeved with the U-shaped sleeve (801).
4. A conveniently assembled flow-restricted fire extinguisher valve body according to claim 2, characterized in that: The inside of the sliding block (803) is symmetrically provided with a moving groove (808), the inside of the moving groove (808) is slidably connected with a moving block (809), the moving block (809) is fixedly connected with the plug rod (804).
5. A conveniently assembled flow-restricted fire extinguisher valve body according to claim 2, characterized in that: The inside of the sliding block (803) is provided with a through groove (810) in the middle, the through groove (810) is through connected with the plug rod (804).
6. A conveniently assembled flow-restricted fire extinguisher valve body according to claim 1, characterized in that: The placing piece (3) is made of rubber.
7. A conveniently assembled flow-restricted fire extinguisher valve body according to claim 1, characterized in that: The inside of the valve body (6) and the surface of the bottle pipe (5) are provided with thread texture.
Citation Information
Patent Citations
Fire extinguisher valve convenient to assemble
CN221998722U