Fire extinguisher valve with locking function
By designing a combined structure of pressing wrench, piston rod and multi-stage locking components on the fire extinguisher valve, the fire extinguishing agent leakage problem caused by the fall off of the insurance pin is solved, automatic locking and convenient operation are achieved, and the safety and reliability of the fire extinguisher is ensured. sex.
Patent Information
- Application Number
- CN202420556820.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-03-21
AI Technical Summary
When an insuffer pin is installed on the side of the fire extinguisher valve, the accidental fall of the insuffer pin may lead to the leakage of the fire extinguishing agent, and the prior art cannot effectively prevent such accidental leakage.
A fire extinguisher valve with locking function is designed. By installing a pressing wrench, a piston rod, a first movable bolt, a pressure gauge, a nozzle and a second movable bolt on the valve body, a combined structure of a pushing spring, a sliding block and a movable bolt are used. , realize automatic activation of the secondary lock when the first movable bolt falls off, and prevents the fire extinguishing agent from being sprayed out.
It effectively avoids the accidental spray of fire extinguishing agent after the first movable plug falls off, ensures the safety of the fire extinguisher during transportation or storage, extends the service life of the fire extinguishing agent, and avoids unnecessary leakage.
Smart Images
Figure CN222238617U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire extinguisher valves with a locking function, in particular to a fire extinguisher valve with a locking function. Background Art
[0002] A fire extinguisher valve with a locking function refers to a specially designed valve that can lock or secure the valve cover to ensure that the valve will not accidentally open or leak when in the closed position. This locking function is usually to prevent misoperation or malicious operation and ensure that the fire extinguisher can be used normally when needed. The valve may have a special locking device on it, such as a valve cover with a keyhole or an additional locking pin. When the valve cover is in the closed position, these locking devices can be secured with a lock or other safety device to prevent the valve from accidentally opening.
[0003] This design helps provide safety and reliability, ensuring that the fire extinguisher remains closed in non-emergency situations and only authorized and properly operated personnel can unlock and open the valve. This is very important to prevent leakage and misuse of fire extinguishing agents. Different types and brands of fire extinguishers may have different locking designs and mechanisms, and the specific locking functions may vary.
[0004] At present, a safety pin is usually set on the side of the fire extinguisher valve. The safety pin is an important safety device on the fire extinguisher, which is used to ensure that the fire extinguisher will not accidentally spray the fire extinguishing agent during transportation or storage. When the safety pin falls off due to accidental, the fire extinguisher sprayed at that time is not affected. Within a certain period of time, the fire extinguishing agent inside the fire extinguisher may be affected, causing the fire extinguishing agent to leak; therefore, it does not meet the existing needs. In this regard, we propose a fire extinguisher valve with a locking function. Utility Model Content
[0005] The utility model provides a fire extinguisher valve with a locking function, which has the beneficial effect of delaying the fire extinguisher to a certain extent after the safety pin on the side of the fire extinguisher valve falls off, and solves the problem that a safety pin is usually arranged on the side of the fire extinguisher valve mentioned in the above background technology. The safety pin is an important safety device on the fire extinguisher, which is used to ensure that the fire extinguisher will not accidentally spray the fire extinguishing agent during transportation or storage. When the safety pin falls off due to accidental, the fire extinguisher sprayed at that time is not affected, but the fire extinguishing agent inside the fire extinguisher may be affected within a certain period of time, causing the problem of fire extinguishing agent leakage.
[0006] The utility model provides the following technical solutions: a fire extinguisher valve with a locking function, comprising a valve body, characterized in that: a pressing wrench for controlling the liquid discharge of the valve body is installed on the upper side of the valve body, a piston rod for liquid discharge is movably installed inside the valve body, the end of the piston rod passes through the top of the valve body, and the end of the piston rod is intermittently in contact with the pressing wrench, a first stopcock for locking the fire extinguisher valve is installed on the side of the pressing wrench, a pressure gauge for displaying the internal pressure of the fire extinguisher is installed on the side of the valve body, a nozzle for spraying fire extinguishing agent is provided on the side of the valve body, a second stopcock for multi-stage locking of the valve body is installed on the side of the valve body, a locking assembly for fixing the piston rod is installed inside the second stopcock, and the piston rod is provided with a clamping groove for clamping with the movable end of the locking assembly.
[0007] As an optional solution for a fire extinguisher valve with a locking function described in the utility model, the push wrench includes a first wrench and a second wrench, the first wrench is fixedly mounted on the upper side of the valve body, the second wrench is hinged to the upper side of the first wrench through a torsion spring, and the first wrench and the side of the first wrench are both provided with a socket for inserting the first stopcock.
[0008] As an optional solution for a fire extinguisher valve with a locking function described in the utility model, wherein: the cross-sectional shape of the first stopcock is set to be Y-shaped, a ventilation hole is opened on the upper side of the valve body, a rubber block is installed at one end of the first stopcock, and the ventilation hole is interference-fitted with the rubber block.
[0009] As an optional solution for a fire extinguisher valve with a locking function described in the utility model, wherein: the second stopcock is inserted into the interior of the valve body, a receiving groove for placing the locking assembly is opened in the second stopcock, the locking assembly includes a push spring, a sliding block and a locking block, the push spring is installed in the receiving groove, the locking block is movably installed in the receiving groove, and the sliding block is installed between the locking block and the push spring.
[0010] As an optional solution for a fire extinguisher valve with a locking function described in the utility model, wherein: the sliding block slides with interference fit with the accommodating groove, and a negative pressure chamber is set at one end of the accommodating groove through the interference fit between the sliding block and the accommodating groove.
[0011] As an optional solution for a fire extinguisher valve with a locking function described in the utility model, wherein: a connecting pipe is connected to the upper side of the negative pressure chamber, the connecting pipe is communicated with the ventilation hole, and the engaging block is limitedly engaged with the engaging groove.
[0012] As an optional solution for a fire extinguisher valve with a locking function described in the utility model, the inner wall of the valve body is provided with a channel for discharging the fire extinguishing agent, the channel is connected to the nozzle, the piston rod movably passes through the channel, and a sealing ring is provided between the piston rod and the channel.
[0013] The utility model has the following beneficial effects:
[0014] 1. When the fire extinguisher valve with a locking function is in use, the first stopcock is disengaged, so that the first stopcock will drive the rubber block to disengage from the ventilation hole. Since the ventilation hole and the negative pressure chamber are connected through the connecting pipe, air can flow through the negative pressure chamber, so that the gas inside the negative pressure chamber is in a normal range. Therefore, the squeezed push spring is expanded, and the push spring pushes the sliding block, so that the sliding block pushes the engaging block, so that the push spring transmits the engaging block through the sliding block, so that the engaging block is pushed by the push spring, so that the engaging block is engaged with the engaging groove, so that the piston rod can start the secondary locking function of the fire extinguisher valve as much as possible when the first stopcock is disengaged. This solution has a simple structure and is easy to operate. When the first stopcock is disengaged, the fire extinguisher valve is locked in multiple stages through the cooperation between the second stopcock and the ventilation hole, so as to avoid the fire extinguisher valve from being touched after the first stopcock is disengaged, thereby preventing the fire extinguisher from being sprayed out due to the fire extinguishing agent.
[0015] 2. When the fire extinguisher valve with a locking function is in use, the second stopcock is pulled out from the valve body, so that the second stopcock is separated from the valve body, and the engagement block loses engagement with the engagement groove, so that the valve body can be used normally. This solution has a simple structure and is easy to operate, and the second stopcock can be easily removed and used. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.
[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.
[0018] Figure 3 It is a rear view structural schematic diagram of the push wrench of the utility model.
[0019] Figure 4 It is a schematic diagram of the enlarged structure of point A of the utility model.
[0020] In the figure: 110, valve body; 111, ventilation hole; 112, rubber block; 120, pressing wrench; 121, first wrench; 122, second wrench; 123, jack; 130, piston rod; 140, first stopcock; 150, pressure gauge; 160, nozzle; 170, second stopcock; 180, locking assembly; 181, push spring; 182, sliding block; 183, snap block; 190, snap groove; 210, accommodating groove; 211, negative pressure chamber; 212, connecting pipe; 220, channel; 221, sealing ring. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] Embodiment 1: This embodiment is intended to promote the solution. A safety pin is usually set on the side of the fire extinguisher valve. The safety pin is an important safety device on the fire extinguisher, which is used to ensure that the fire extinguisher will not accidentally spray the fire extinguishing agent during transportation or storage. When the safety pin falls off due to accidental detachment, the fire extinguisher spraying at that time is not affected. Within a certain period of time, the fire extinguishing agent inside the fire extinguisher may be affected, causing the fire extinguishing agent to leak. Please refer to Figure 1-Figure 4 A fire extinguisher valve with a locking function comprises a valve body 110, a pressing wrench 120 for controlling the liquid discharge of the valve body 110 is installed on the upper side of the valve body 110, a piston rod 130 for liquid discharge is movably installed inside the valve body 110, the end of the piston rod 130 passes through the top of the valve body 110, and the end of the piston rod 130 is intermittently in contact with the pressing wrench 120, a first stopcock 140 for locking the fire extinguisher valve is installed on the side of the pressing wrench 120, and a first stopcock 140 for locking the fire extinguisher valve is installed on the side of the valve body 110. A pressure gauge 150 is provided for displaying the internal pressure of the fire extinguisher. The pressure gauge 150 is a common device and is therefore not explained in this embodiment. A nozzle 160 for spraying a fire extinguishing agent is provided on the side of the valve body 110. A second stopcock 170 for multi-stage locking of the valve body 110 is installed on the side of the valve body 110. A locking assembly 180 for fixing the piston rod 130 is installed inside the second stopcock 170. The piston rod 130 is provided with a locking groove 190 for engaging with the movable end of the locking assembly 180.
[0023] The pressing wrench 120 includes a first wrench 121 and a second wrench 122. The first wrench 121 is fixedly mounted on the upper side of the valve body 110. The second wrench 122 is hinged to the upper side of the first wrench 121 through a torsion spring. The first wrench 121 and the side of the first wrench 121 are both provided with a socket 123 for inserting the first stopcock 140.
[0024] The cross-sectional shape of the first stopcock 140 is set to be Y-shaped. A ventilation hole 111 is opened on the upper side of the valve body 110. A rubber block 112 is installed at one end of the first stopcock 140. The ventilation hole 111 and the rubber block 112 are interference-fitted.
[0025] The second stopcock 170 is inserted into the valve body 110. A receiving groove 210 for accommodating the locking assembly 180 is provided in the second stopcock 170. The locking assembly 180 includes a push spring 181, a sliding block 182 and a locking block 183. The push spring 181 is installed in the receiving groove 210. The locking block 183 is movably installed in the receiving groove 210. The sliding block 182 is installed between the locking block 183 and the push spring 181.
[0026] The sliding block 182 slides with the receiving groove 210 in interference fit. Through the interference fit between the sliding block 182 and the receiving groove 210 , a negative pressure chamber 211 is provided at one end of the receiving groove 210 .
[0027] In this embodiment, when in use, the first stopcock 140 is disengaged, so that the first stopcock 140 drives the rubber block 112 to separate from the ventilation hole 111. Since the ventilation hole 111 is connected to the negative pressure chamber 211 through the connecting tube 212, the air flows through the negative pressure chamber 211, so that the gas inside the negative pressure chamber 211 is within a normal range. Therefore, the squeezed push spring 181 is expanded, and the push spring 181 pushes the sliding block 182, so that the sliding block 182 pushes the engaging block 183, so that the push spring 181 passes through the sliding block 182. The engaging block 183 is transmitted, so that the engaging block 183 is pushed by the pushing spring 181, so that the engaging block 183 is engaged with the engaging groove 190, so that the piston rod 130 can start the secondary locking function of the fire extinguisher valve as much as possible when the first stopcock 140 falls off. This solution has a simple structure and is easy to operate. When the first stopcock 140 falls off, the fire extinguisher valve is locked at multiple levels through the cooperation between the second stopcock 170 and the ventilation hole 111, so as to avoid the fire extinguisher valve from being touched after the first stopcock 140 falls off, thereby avoiding the discharge of fire extinguishing agent.
[0028] Embodiment 2: This embodiment is intended to facilitate the solution of the problem of conveniently pulling out the second stopcock. This embodiment is an improvement made on the basis of Embodiment 1. For details, please refer to Figure 1-Figure 4The negative pressure chamber 211 is connected to a connecting pipe 212 on the upper side, the connecting pipe 212 is connected to the ventilation hole 111, and the engaging block 183 is limitedly engaged with the engaging groove 190. The inner wall of the valve body 110 is provided with a channel 220 for discharging the fire extinguishing agent, the channel 220 is connected to the nozzle 160, the piston rod 130 movably passes through the channel 220, and a sealing ring 221 is provided between the piston rod and the channel.
[0029] In this embodiment: when in use, the second stopcock 170 is pulled out from the valve body 110, so that the second stopcock 170 is separated from the valve body 110, and the engagement block 183 loses engagement with the engagement groove 190, so that the valve body 110 can be used normally. This solution has a simple structure and is easy to operate, and the second stopcock 170 can be easily removed and used.
[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A fire extinguisher valve with a locking function, comprising a valve body (110), characterized in that: A pressing wrench (120) for controlling the discharge of liquid from the valve body (110) is installed on the upper side of the valve body (110); a piston rod (130) for discharging liquid is movably installed inside the valve body (110); the end of the piston rod (130) passes through the top of the valve body (110), and the end of the piston rod (130) is in intermittent contact with the pressing wrench (120); a first stopcock (140) for locking the fire extinguisher valve is installed on the side of the pressing wrench (120); and the side of the valve body (110) is provided with a first stopcock (140) for locking the fire extinguisher valve. A pressure gauge (150) for displaying the internal pressure of the fire extinguisher is installed on the side of the valve body (110); a nozzle (160) for spraying a fire extinguishing agent is provided on the side of the valve body (110); a second stopcock (170) for multi-stage locking of the valve body (110) is installed on the side of the valve body (110); a locking assembly (180) for fixing the piston rod (130) is installed inside the second stopcock (170); and the piston rod (130) is provided with a locking groove (190) for locking with the movable end of the locking assembly (180).
2. A fire extinguisher valve with locking function according to claim 1, characterized in that: The pressing wrench (120) comprises a first wrench (121) and a second wrench (122); the first wrench (121) is fixedly mounted on the upper side of the valve body (110); the second wrench (122) is hinged to the upper side of the first wrench (121) via a torsion spring; and the first wrench (121) and the second wrench (121) are both provided with a socket (123) for inserting the first stopcock (140) on their sides.
3. The fire extinguisher valve with locking function according to claim 1, characterized in that: The cross-sectional shape of the first stopcock (140) is set to be Y-shaped, and a ventilation hole (111) is opened on the upper side of the valve body (110). A rubber block (112) is installed at one end of the first stopcock (140), and the ventilation hole (111) and the rubber block (112) are interference-fitted.
4. A fire extinguisher valve with locking function according to claim 3, characterized in that: The second stopcock (170) is inserted into the valve body (110), and a receiving groove (210) for accommodating the locking assembly (180) is provided in the second stopcock (170). The locking assembly (180) includes a push spring (181), a sliding block (182) and a locking block (183). The push spring (181) is installed in the receiving groove (210), the locking block (183) is movably installed in the receiving groove (210), and the sliding block (182) is installed between the locking block (183) and the push spring (181).
5. A fire extinguisher valve with locking function according to claim 4, characterized in that: The sliding block (182) and the receiving groove (210) slide in interference fit, and a negative pressure chamber (211) is provided at one end of the receiving groove (210) through the interference fit between the sliding block (182) and the receiving groove (210).
6. A fire extinguisher valve with locking function according to claim 5, characterized in that: The upper side of the negative pressure chamber (211) is connected to a connecting tube (212), the connecting tube (212) is in communication with the ventilation hole (111), and the engaging block (183) is position-limitingly engaged with the engaging groove (190).
7. The fire extinguisher valve with locking function according to claim 1, characterized in that: The inner wall of the valve body (110) is provided with a channel (220) for discharging the fire extinguishing agent, the channel (220) is connected with the nozzle (160), the piston rod (130) movably passes through the channel (220), and a sealing ring (221) is provided between the piston rod and the channel.