A gas fire extinguishing device with a pressure detection component

Abstract

The present invention discloses a gas fire extinguishing device with a pressure detection component in the field of gas fire extinguishing technology, including a bottle body; a detection seat; a sliding block; a buffer cavity; a floating block; a connecting unit; a convex block, on which a light-transmitting groove is provided; two infrared counter-beam switches respectively installed on the outer walls of the detection seat on opposite sides, and the detection ends penetrate into the detection seat, and the two infrared counter-beam switches are arranged corresponding to the light-transmitting groove; a processing unit for collecting infrared counter-beam switch signals and having an early warning function. The gas in the bottle body enters the buffer cavity and generates an upward elastic resisting force on the sliding block, and then drives the sliding block to move as the air pressure in the bottle body changes. During the movement of the sliding block, the floating block will be driven to move accordingly, thereby changing the position of the light-transmitting groove. When the infrared light emitted by the two infrared counter-beam switches is blocked by the convex block, the signal of the infrared counter-beam switch will be fed back to the processing unit, thereby enabling the processing unit to issue an early warning prompt.

Description

Technical Field

[0001] The invention relates to the technical field of gas fire extinguishing, in particular to a gas fire extinguishing device with a pressure detection component. Background Art

[0002] Gas fire extinguishing refers to a fire extinguishing system that usually uses a gaseous fire extinguishing agent at room temperature and atmospheric pressure to extinguish fires. It is generally composed of a fire extinguishing agent storage bottle, a control start valve group, a delivery pipeline, a nozzle and a fire detection control system, and some also have an inert gas storage bottle for pressurized driving. Gas fire extinguishing systems include heptafluoropropane, mixed gas IG541, carbon dioxide, inert gas and smoke fire extinguishing systems.

[0003] Commonly used: IG541 mixed gas fire extinguishing agent is a colorless, odorless, non-toxic, non-conductive pure "green" compressed gas. It is a mixture of nitrogen, argon and carbon dioxide gases present in the atmosphere. The raw materials are very abundant. The fire extinguishing process does not affect people's vision and does not produce temperature differences and corrosive decomposition products. The release of the fire extinguishing agent simply releases the gas from nature back to nature. It has no ozone depletion potential (ODP) and will not produce a "greenhouse effect". It will not produce chemicals that damage the atmosphere, and will not cause toxicity problems associated with halogenated hydrocarbons and their alternative fire extinguishing agents during the fire extinguishing process. It is an ideal fire extinguishing agent.

[0004] The HFC-227ea fire extinguishing system consists of an automatic fire alarm and fire extinguishing control system, a fire extinguishing agent storage container, a drive container, a drive

[0005] It consists of a motor valve, a selector valve, a check valve, a pressure signal device, a safety valve, a bracket, a nozzle, a piping system, etc.

[0006] Automatic fire detection, automatic alarm and control linkage equipment, automatic fire extinguishing and other functions. In an emergency, electrical

[0007] Manual and mechanical emergency manual mode to initiate fire extinguishing.

[0008] When the gas fire extinguishing container in the prior art is stored, the gas pressure inside the bottle may be affected by the external environment and be too high or too low, thereby affecting the normal use of the gas fire extinguishing device. When the staff monitors the air pressure in the gas hollow, it is generally necessary for the staff to arrive at the storage site of the gas fire extinguishing container, open the locking nut behind the pressure gauge, and collect the scale value of the pressure gauge on the gas container to complete the assessment and monitoring of the gas fire extinguishing container pressure. At this time, if the pressure gauge pointer points to the green zone, it is a normal area. If it points to the red zone, it is an abnormal area. Then, the locking nut of the pressure gauge is tightened with a wrench to avoid leakage. Obviously, this method cannot adapt to the air pressure monitoring work of large-scale gas fire extinguishing containers.

[0009] Patent publication number: CN 206974606 U provides a gas fire extinguishing equipment bottle group pressure monitoring device, including a gas fire extinguishing equipment bottle group placement rack, a bottle head valve, a pressure sensor, a data collector, a switch, a configuration screen and a computer, and a pressure sensor connected to the pressure interface through a pressure sensor. This device can display in real time on the external configuration screen of the bottle group equipment room, display and record the bottle group pressure in real time, and alarm according to the settings; it is easy to manage, and can also reduce the damage to the pressure gauge caused by manual operation, and can realize historical records, remote monitoring, and alarm functions.

[0010] The patent publication number is: CN 208049237 U, a gas fire extinguishing device pressure monitoring system, the pressure sensor is connected to the signal input end of the data acquisition unit, and the signal output end of the data acquisition unit is connected to the signal input end of the control unit, which changes the existing detection mode. It is possible to detect whether the pressure of the gas fire extinguishing system is normal without going to the site, reducing the loss of the instrument, and can monitor the pressure of multiple gas fire extinguishing systems at the same time, saving workload and improving maintenance efficiency.

[0011] Although both of the above patents provide that the pressure sensor is transmitted to the background, and the background performs analysis and judgment to remotely monitor the fire extinguishing container in time, the design of the above structure has the following problems during use. Since the pressure sensor is located at the position of the pressure gauge, the pressure gauge needs to be opened and closed according to the detection needs during detection to avoid leakage. In actual applications, if the sensor is installed at the position of the detection port, the following problems will occur:

[0012] The pressure sensor is installed on the pressure detection port. When in use, the installation position of the pressure sensor is difficult to ensure true sealing performance, which affects the normal operation of the pressure sensor and poses a safety hazard.

[0013] The installed pressure sensor is always exposed to the outside. If it is left for a long time, dust will easily accumulate. It needs to be treated regularly. Cleaning is likely to damage the vibration membrane of the sensor, thus shortening its service life.

[0014] Therefore, there is a need for a gas fire extinguishing device structure with a pressure detection component that can detect excessive or insufficient gas pressure, which is indirect, safe, stable and can achieve remote monitoring. Summary of the invention

[0015] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a gas fire extinguishing device with a pressure detection component. In order to solve the above-mentioned technical problems, the present application uses an external detection seat, which is connected to the bottle body to detect the pressure inside the bottle body in real time. The detection is not directly detected by a sensor, but a sensing principle of a mechanical structure is adopted. The sliding block in the detection seat drives the sliding block to move as the air pressure in the bottle body changes. During the movement of the sliding block, the floating block will be driven to move accordingly, thereby changing the position of the light-transmitting groove. When the infrared light emitted by the two infrared counter-radiation switches is blocked by the protrusion, the signal of the infrared counter-radiation switch will be fed back to the processing unit, thereby enabling the processing unit to issue an early warning prompt; and there is no need for an external pressure sensor, and a built-in detection mechanism is adopted. The gas in the bottle body enters the buffer cavity and generates an upward elastic resisting force on the sliding block, thereby avoiding the falling of dust and the previous cleaning process.

[0016] The present invention provides the following technical solutions:

[0017] The present invention provides: a gas fire extinguishing device with a pressure detection component, comprising a bottle body, and also comprising:

[0018] A detection seat connected to the inside of the bottle body through a connecting pipe, wherein the inside of the detection seat is hollow;

[0019] A sliding block is engaged in the detection seat and forms a sliding fit with the interior of the detection seat, wherein a buffer cavity is formed between the sliding block and the inner bottom wall of the detection seat, and the interior of the buffer cavity is connected with the interior of the bottle body;

[0020] A floating block engaged in the detection seat and forming a sliding fit with the inside of the detection seat, the floating block and the sliding block are connected via a connecting unit, the floating block is located above the sliding block, and a convex block is provided on the upper surface of the floating block, and a light-transmitting groove is opened on the convex block;

[0021] Two infrared beam switches are respectively installed on the outer walls of the detection seat at two opposite sides, and the detection ends thereof penetrate into the detection seat, and the two infrared beam switches are arranged corresponding to the light-transmitting slots;

[0022] A processing unit for collecting the infrared radiation switch signal and having an early warning function.

[0023] The connecting tube is connected to one side of the bottle mouth valve at the mouth of the bottle body, and one end of the connecting tube is sealed and welded with the bottle mouth valve, and the other end is welded with the lower end of the seat body with the detection seat. The material of the detection seat and the connecting tube is the same as that of the bottle body. The detection seat includes a cylindrical structure, and an end cover is sealed and welded on the upper end.

[0024] As a further optimization of the above technical solution, the connecting unit includes:

[0025] A first swing arm is hinged to the inner wall of the detection seat, and a sliding pin is passed through the lower end of the first swing arm;

[0026] An ear plate is arranged on the top surface of the sliding block, and a sliding guide groove is provided on the ear plate for the sliding pin to be inserted, and the length direction of the sliding guide groove is perpendicular to the sliding direction of the sliding block in the detection seat;

[0027] The second swing arm is connected to the first swing arm, the first swing arm and the second swing arm form an angle in length direction, and one end of the second swing arm away from the first swing arm is in sliding contact with the bottom surface of the floating block.

[0028] As a further optimization of the above technical solution, the length of the first swing arm is smaller than the length of the second swing arm.

[0029] The first swing arm and the second swing arm are an integrated structure, forming an L-shaped crank arm structure. A slot that fits with the ear plate is provided in the middle of the first swing arm, and the slot extends to the bottom end of the second swing arm. The length of the first swing arm matches the length of the sliding guide groove of the ear plate.

[0030] As a further optimization of the above technical solution, a sliding rod is vertically connected to the sliding block, the lower end of the sliding rod slides through the detection seat and is fixedly sleeved with a limit nut, and a first spring is wrapped around the sliding rod, and the two ends of the first spring in the direction of elastic force elastically press against the limit nut and the detection seat respectively.

[0031] As a further optimization of the above technical solution, the processing unit includes:

[0032] A control module electrically connected to the infrared beam switch, the control module being used to receive a signal from the infrared beam switch and process and analyze the signal;

[0033] A transmission module electrically connected to the control module, and used for transmitting the data results processed and analyzed by the control module to a remote control terminal, and the control terminal generates an early warning signal based on the data results; in addition, the processing unit can synchronously display information such as the storage location of the gas fire extinguishing container; the relevant information of the cylinder, the production date of the cylinder, the date of refilling of the agent, and the placement location must be entered into the system in advance, and when the detection or scrapping time is reached, the background can automatically remind the management personnel to take corresponding measures.

[0034] As a further optimization of the above technical solution, the light-transmitting groove is in the form of a sliding guide groove, and its length direction is parallel to the sliding direction of the floating block.

[0035] As a further optimization of the above technical solution, a guide column is vertically connected to the protrusion, and the guide column slides out of the top of the detection seat. A second spring is wrapped around the guide column, and the second spring elastically presses against the protrusion.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] The present application uses an external detection seat, which is connected to the bottle body to detect the pressure in the bottle body in real time. The detection is not directly detected by a sensor, but adopts the sensing principle of a mechanical structure. The sliding block in the detection seat drives the sliding block to move as the air pressure in the bottle body changes. During the movement of the sliding block, the floating block will be driven to move accordingly, thereby changing the position of the light-transmitting groove. When the infrared light emitted by the two infrared counter-shooting switches is blocked by the protrusion, the signal of the infrared counter-shooting switch will be fed back to the processing unit, thereby enabling the processing unit to issue an early warning prompt;

[0038] No external pressure sensor is required. A built-in detection mechanism is used. The gas in the bottle enters the buffer cavity and generates an upward elastic force on the sliding block, avoiding the falling of dust and the previous cleaning process.

[0039] (3) By providing the first swing arm, the second swing arm and the ear plate, when the sliding block moves, the first swing arm and the second swing arm can be driven to swing, so that the second swing arm can abut against the floating block, so that the floating block moves with the movement of the sliding block. In addition, the length of the first swing arm is set corresponding to the length of the second swing arm, so that the movement range of the sliding block can be amplified, and then the movement range of the floating block is greater than that of the sliding block, so that the detection accuracy is higher;

[0040] (4) By arranging the sliding rod, the limit nut and the first spring, the first spring generates an elastic resisting force on the limit nut, so that when the pressure in the bottle body decreases, the first spring can promptly drive the limit nut to move downward, thereby driving the sliding block to slide downward in the detection seat, so that when the air pressure inside the bottle body decreases, the detection accuracy of the infrared counter-radiation switch can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0042] Figure 1 It is a structural schematic diagram of a gas fire extinguishing device with a pressure detection component of the present invention;

[0043] Figure 2 for Figure 1 A cross-sectional schematic diagram of a local structure;

[0044] Figure 3 It is a schematic diagram of explosion decomposition after omitting the bottle body in a gas fire extinguishing device with a pressure detection component of the present invention;

[0045] Figure 4 It is a structural schematic diagram of the combination of the first swing arm and the second swing arm.

[0046] Figure 5 The present invention is a schematic diagram of the framework structure of a processing unit in a gas fire extinguishing device with a pressure detection component.

[0047] The reference numerals are as follows:

[0048] 1-bottle body, 2-detection seat, 3-first spring, 4-connecting pipe, 5-infrared counter-shooting switch, 6-guide column, 7-floating block, 8-sliding block, 9-buffer cavity, 10-second spring, 11-light-transmitting groove, 12-bump, 13-second swing arm, 14-ear plate, 15-first swing arm, 16-sliding pin, 17-sliding guide groove, 18-sliding rod, 19-limiting nut, 20-control module, 21-transmission module, 22-control terminal. Implementation

[0049] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. Example

[0050] like Figure 1-4 As shown, this embodiment provides a technical solution: a gas fire extinguishing device with a pressure detection component, including a bottle body 1, on which a pressure gauge is installed, and the pressure gauge can provide a reference for the internal pressure value of the bottle body 1 when the staff arrives at the site for detection. In addition, the gas fire extinguishing device also includes:

[0051] A connecting pipe 4 is connected to the position of the bottle mouth valve on the corresponding side of the barometer, and a detection seat 2 is connected to the inside of the bottle body 1 through the connecting pipe 4. The inside of the detection seat 2 is hollow. Specifically, the connecting pipe 4 is horizontally welded to the outer wall of the bottle body 1. In addition, the inside of the connecting pipe 4 is connected to the inside of the bottle body 1, so that the gas in the bottle body 1 can enter the connecting pipe 4. In addition, the detection seat 2 is welded to the connecting pipe 4, so that the inside of the detection seat 2 and the inside of the bottle body 1 are connected to each other.

[0052] A sliding block 8 is engaged in the detection seat 2 and forms a sliding fit with the inside of the detection seat 2. A buffer cavity 9 is formed between the sliding block 8 and the inner bottom wall of the detection seat 2. The inside of the buffer cavity 9 is connected to the inside of the bottle body 1. In addition, the sliding block 8 can be made of rubber;

[0053] A floating block 7 is engaged in the detection seat 2 and forms a sliding fit with the inside of the detection seat 2. The floating block 7 is connected to the sliding block 8 through a connecting unit. The floating block 7 is located above the sliding block 8. A convex block 12 is provided on the upper surface of the floating block 7. A light-transmitting groove 11 is provided on the convex block 12.

[0054] Two infrared beam switches 5 are respectively installed on the outer walls of the detection seat 2 on opposite sides, and the detection ends thereof penetrate into the detection seat 2. The two infrared beam switches 5 are arranged corresponding to the light-transmitting slots 11;

[0055] A processing unit for collecting the signal of the infrared beam switch 5 and having an early warning function. The processing unit includes: a control module 20 electrically connected to the infrared beam switch 5, the control module 20 is used to receive the signal of the infrared beam switch 5 and process and analyze the signal. Specifically, the control module 20 in this embodiment can be a chip, a single-chip microcomputer or other devices with a control function. The signal of the infrared beam switch 5 will be transmitted to the control module 20, and the control module 20 collects the signal and processes and analyzes it to form a data result;

[0056] The transmission module 21 is electrically connected to the control module 20 and is used to transmit the data results processed and analyzed by the control module 20 to the remote control terminal 22. The control terminal 22 generates an early warning signal according to the data results.

[0057] In a gas fire extinguishing device with a pressure detection component described in the present invention, the gas inside the bottle body 1 will enter the detection seat 2 through the connecting pipe 4, and generate a thrust on the sliding block, so that the sliding block can move upward in the detection seat 2 for a certain stroke, and the sliding stroke of the sliding block changes in direct proportion to the air pressure. When the sliding block 8 moves, the floating block will be driven by the connecting unit to move synchronously, so that the protrusion 12 also produces the same movement, thereby changing the position of the light-transmitting groove 11. When the air pressure is too large or too small, the upward or downward position of the sliding block will cause the light-transmitting groove 11 to be unable to correspond to the position of the infrared beam switch, that is, the infrared light emitted by the infrared beam switch cannot pass through the light-transmitting groove 11, resulting in the signal transmission between the two infrared beam switches being interfered by the protrusion, thereby causing the infrared beam switch signal to disappear. The processing unit collects the infrared beam switch signal and forms an early warning signal. The staff determines the air pressure of the gas fire extinguishing container based on the early warning signal. In addition, the processing unit can synchronously display information such as the storage position of the gas fire extinguishing container.

[0058] When in use, relevant information of the corresponding cylinder (such as: cylinder production date, agent refilling date, placement location, etc.) can be entered into the system. When the inspection or scrapping time is reached, the background can automatically remind the management personnel to take corresponding measures. Example

[0059] A gas fire extinguishing device with a pressure detection component includes a bottle body 1, on which a pressure gauge is installed. The pressure gauge can provide a reference for the internal pressure value of the bottle body 1 when the staff arrives at the site for detection. In addition, the gas fire extinguishing device also includes:

[0060] The detection seat 2 is connected to the bottle body 1 through the connecting tube 4, and the detection seat 2 is hollow inside. Specifically, the connecting tube 4 is horizontally welded to the outer wall of the bottle body 1, and the inside of the connecting tube 4 is connected to the inside of the bottle body 1, so that the gas in the bottle body 1 can enter the connecting tube 4. In addition, the detection seat 2 is welded to the connecting tube 4, so that the inside of the detection seat 2 and the inside of the bottle body 1 are connected to each other;

[0061] A sliding block 8 is engaged in the detection seat 2 and forms a sliding fit with the inside of the detection seat 2. A buffer cavity 9 is formed between the sliding block 8 and the inner bottom wall of the detection seat 2. The inside of the buffer cavity 9 is connected to the inside of the bottle body 1. In addition, the sliding block 8 can be made of rubber;

[0062] A floating block 7 is engaged in the detection seat 2 and forms a sliding fit with the inside of the detection seat 2. The floating block 7 is connected to the sliding block 8 through a connecting unit. The floating block 7 is located above the sliding block 8. A convex block 12 is provided on the upper surface of the floating block 7. A light-transmitting groove 11 is provided on the convex block 12.

[0063] Two infrared beam switches 5 are respectively installed on the outer walls of the detection seat 2 on opposite sides, and the detection ends thereof penetrate into the detection seat 2. The two infrared beam switches 5 are arranged corresponding to the light-transmitting slots 11;

[0064] A processing unit for collecting signals from the infrared radiation switch 5 and having an early warning function.

[0065] The connection unit includes:

[0066] A first swing arm 15 is hinged to the inner wall of the detection seat 2, that is, the first swing arm 15 is hinged to the hinge seat of the inner wall of the detection seat 2 by installing a pivot, and a sliding pin 16 is penetrated at the lower end of the first swing arm 15;

[0067] The ear plate 14 is arranged on the top surface of the sliding block 8, and a sliding guide groove 17 for the sliding pin 16 to be inserted is opened on the ear plate 14. The length direction of the sliding guide groove 17 is perpendicular to the sliding direction of the sliding block 8 in the detection seat 2. The lower end of the first swing arm 15 is notched, so that the ear plate 14 can freely pass through the notch of the first swing arm 15;

[0068] The second swing arm 13 is connected to the first swing arm 15 , and the first swing arm 15 forms an angle with the length direction of the second swing arm 13 , and one end of the second swing arm 13 away from the first swing arm 13 is in sliding contact with the bottom surface of the floating block 7 .

[0069] In a gas fire extinguishing device with a pressure detection component described in the present invention, when the sliding block 8 moves upward or downward, the sliding pin 16 at the lower end of the first swing arm 15 will slide in the sliding guide groove 17, and at the same time the first swing arm 15 will generate a corresponding swing, thereby causing the upper end of the second swing arm 13 to contact and connect with the bottom surface of the floating block, so that the floating block can move synchronously.

[0070] like Figure 4 As shown, the length of the first swing arm 15 is less than that of the second swing arm 13. The first swing arm 15 and the second swing arm 13 are an integrated structure, forming an L-shaped crank arm structure, and a slot for engaging with the ear plate is provided in the middle of the first swing arm 15, and the slot extends to the bottom end of the second swing arm 13, and the length of the first swing arm 15 matches the length of the sliding guide slot 17 of the ear plate 14.

[0071] In a gas fire extinguishing device with a pressure detection component described in the present invention, by setting the length of the first swing arm 15 to be smaller than the length of the second swing arm 13, the movement amplitude of the floating block will be greater than the movement amplitude of the sliding block, so that the movement stroke of the protrusion on the floating block can be enlarged.

[0072] like Figure 1-4 As shown, a sliding rod 18 is vertically connected to the sliding block 8, and the lower end of the sliding rod 18 slides out of the detection seat 2. Specifically, a through hole is opened at the bottom of the detection seat 2 for the sliding rod 18 to pass freely, and a sealing ring is clamped in the through hole to ensure that the sealing performance is not affected while sliding with the sliding rod 18, and a limiting nut 19 is fixedly sleeved on the lower end of the sliding rod 18, and a first spring 3 is wrapped around the sliding rod 18. The two ends of the first spring 3 in the elastic force direction elastically press against the limiting nut 19 and the detection seat 2 respectively. When the air pressure in the buffer chamber increases, the sliding block will move upward and cause the limiting nut 19 to compress the first spring 3.

[0073] In a gas fire extinguishing device with a pressure detection component described in the present invention, when the air pressure in the bottle body 1 increases, the sliding block will move upward under the action of the air pressure, causing the limit nut to compress the first spring. When the air pressure in the bottle body 1 decreases, the elastic resisting force of the first spring on the limit nut causes the limit nut to drive the sliding rod to move downward, and can also drive the sliding block to move downward.

[0074] like Figure 1-5 As shown, the processing unit includes:

[0075] The control module 20 is electrically connected to the infrared beam switch 5. The control module 20 is used to receive the signal of the infrared beam switch 5 and process and analyze the signal. Specifically, the control module 20 in this embodiment can be a chip, a single-chip microcomputer or other devices with control functions. The signal of the infrared beam switch 5 will be transmitted to the control module 20, and the control module 20 collects the signal and processes and analyzes it to form a data result.

[0076] The transmission module 21 is electrically connected to the control module 20 and is used to transmit the data results processed and analyzed by the control module 20 to the remote control terminal 22. The control terminal 22 generates an early warning signal according to the data results.

[0077] In a gas fire extinguishing device with a pressure detection component described in the present invention, the control module 20 collects the signal of the infrared counter-beam switch. When the infrared light emitted by the infrared counter-beam switch is not blocked or interfered by the protrusion and can pass normally through the light-transmitting groove, the infrared counter-beam switch generates a signal. At this time, the control module 20 determines that the air pressure in the bottle body is within the normal use range. On the contrary, when the infrared light emitted by the infrared counter-beam switch is blocked by the protrusion, the signal of the infrared counter-beam switch disappears. At this time, the control module 20 cannot collect the signal of the infrared counter-beam switch, and then generates an early warning signal. The early warning signal is fed back to the control terminal 22 by the transmission module 21. The control terminal 22 determines that the air pressure inside the bottle body is too high or too low at this time, and maintenance is required.

[0078] like Figure 3 As shown, the light-transmitting groove 11 is in the form of a sliding guide groove, and its length direction is parallel to the sliding direction of the floating block 7.

[0079] In a gas fire extinguishing device with a pressure detection component described in the present invention, by setting the light-transmitting groove 11 in the form of a sliding guide groove, the air pressure in the bottle body can vary within a certain range, and the air pressure within this range will not be judged to be too large or too small.

[0080] like Figure 3 As shown, a guide column 6 is vertically connected to the projection 12 , and the guide column 6 slides through the top of the detection seat 2 . A second spring 10 is sleeved on the guide column 6 , and the second spring 10 elastically presses against the projection 12 .

[0081] In the gas fire extinguishing device with a pressure detection component described in the present invention, the second spring 10 generates a downward elastic resisting force on the protrusion 12, so that the bottom of the floating block and the upper end of the second swing arm can always maintain a contact state.

[0082] In summary, the present application uses an external detection seat, which is connected to the bottle body to detect the pressure inside the bottle body in real time. The detection is not directly performed through a sensor, but a mechanical structure sensing principle is adopted. The sliding block in the detection seat drives the sliding block to move as the air pressure in the bottle body changes. During the movement of the sliding block, the floating block will be driven to move accordingly, thereby changing the position of the light-transmitting groove. When the infrared light emitted by the two infrared counter-shooting switches is blocked by the protrusion, the signal of the infrared counter-shooting switch will be fed back to the processing unit, thereby enabling the processing unit to issue an early warning prompt. There is no need for an external pressure sensor, and a built-in detection mechanism is used. The gas in the bottle body enters the buffer cavity and generates an upward elastic resistance force on the sliding block, thereby avoiding the falling of dust and the previous cleaning process.

[0083] By setting the first swing arm, the second swing arm and the ear plate, when the sliding block moves, the first swing arm and the second swing arm can be driven to swing, and then the second swing arm can be used to resist the floating block, so that the floating block moves with the movement of the sliding block. In addition, the length of the first swing arm is set corresponding to the length of the second swing arm, so that the movement amplitude of the sliding block can be amplified, and then the movement amplitude of the floating block is greater than that of the sliding block, thus achieving higher detection accuracy; by setting the sliding rod, the limit nut and the first spring, the first spring generates an elastic resisting force on the limit nut, so that when the pressure in the bottle body is reduced, the first spring can promptly drive the limit nut to move downward, and then drive the sliding block to slide downward in the detection seat, so that when the air pressure inside the bottle body is reduced, the detection accuracy of the infrared counter-radiation switch can be improved.

[0084] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0085] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent changes made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A gas fire extinguishing device with a pressure detection component, comprising a bottle body (1), characterized in that: Also includes: A detection seat (2) connected to the bottle mouth valve of the bottle body (1) via a connecting pipe (4), wherein the interior of the detection seat (2) is hollow; a sliding block (8) engaged in the detection seat (2) and forming a sliding fit with the interior of the detection seat (2); a buffer cavity (9) is formed between the sliding block (8) and the inner bottom wall of the detection seat (2); the interior of the buffer cavity (9) is connected to the interior of the bottle body (1); A floating block (7) engaged in the detection seat (2) and forming a sliding fit with the interior of the detection seat (2), the floating block (7) and the sliding block (8) being connected via a connecting unit, the floating block (7) being located above the sliding block (8), and a convex block (12) being provided on the upper surface of the floating block (7), and a light-transmitting groove (11) being provided on the convex block (12); Two infrared radiation switches (5) are respectively mounted on the outer walls of two opposite sides of the detection seat (2), and the detection ends thereof penetrate into the detection seat (2), and the two infrared radiation switches (5) are arranged corresponding to the light-transmitting grooves (11); A processing unit for collecting signals from the infrared radiation switch (5) and having an early warning function; The connecting unit comprises: A first swing arm (15) hingedly connected to the inner wall of the detection seat (2), a sliding pin (16) being provided at the lower end of the first swing arm (15); an ear plate (14) disposed on the top surface of the sliding block (8), the ear plate (14) being provided with a sliding guide groove (17) for the sliding pin (16) to be inserted into, the length direction of the sliding guide groove (17) being perpendicular to the sliding direction of the sliding block (8) in the detection seat (2); a second swing arm (13) connected to the first swing arm (15), wherein the first swing arm (15) and the second swing arm (13) form an angle in their length directions, and an end of the second swing arm (13) away from the first swing arm (13) is in sliding contact with the bottom surface of the floating block (7); The length of the first swing arm (15) is shorter than the length of the second swing arm (13); The first swing arm (15) and the second swing arm (13) are an integrated structure, forming an L-shaped crank arm structure; a slot for engaging with the ear plate is provided in the middle of the first swing arm (15); the slot extends to the bottom end of the second swing arm (13); the length of the first swing arm (15) is matched with the length of the sliding guide groove (17) of the ear plate (14); The sliding block (8) is vertically connected to a sliding rod (18), the lower end of the sliding rod (18) slides through the detection seat (2) and is fixedly sleeved with a limit nut (19), the sliding rod (18) is sleeved with a first spring (3), and the two ends of the first spring (3) in the elastic force direction elastically press against the limit nut (19) and the detection seat (2) respectively; A guide column (6) is vertically connected to the protrusion (12), and the guide column (6) slides out of the top of the detection seat (2). A second spring (10) is wrapped around the guide column (6), and the second spring (10) elastically presses against the protrusion (12).

2. A gas fire extinguishing device with a pressure detection component according to claim 1, characterized in that: The connecting tube (4) is connected to one side of the bottle mouth valve at the mouth of the bottle body (1), and one end of the connecting tube (4) is sealed and welded to the bottle mouth valve, and the other end is welded to the lower end of the seat body of the detection seat (2). The material of the detection seat (2) and the connecting tube is the same as that of the bottle body (1). The detection seat (2) includes a cylindrical structure, and an end cap is sealed and welded to the upper end.

3. A gas fire extinguishing device with a pressure detection component according to claim 1, characterized in that: The processing unit comprises: a control module (20) electrically connected to the infrared beam switch (5), the control module (20) being used to receive a signal from the infrared beam switch (5) and process and analyze the signal; a transmission module (21) electrically connected to the control module (20) and used to transmit data results processed and analyzed by the control module (20) to a remote control terminal (22), wherein the control terminal (22) generates an early warning signal according to the data results; In addition, the processing unit can synchronously display information such as the storage location of the gas fire extinguisher container; the relevant information of the cylinder, the production date of the cylinder, the date of refilling of the agent, and the placement location must be entered into the system in advance. When the inspection or scrapping time is reached, the background can automatically remind the management personnel to take corresponding measures.

4. A gas fire extinguishing device with a pressure detection component according to claim 1, characterized in that: The light-transmitting groove (11) is in the form of a sliding guide groove, and its length direction is parallel to the sliding direction of the floating block (7).

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