Fire extinguishing bomb bin provided with throwing mechanism and using method of fire extinguishing bomb bin

By designing a fire-extinguishing bomb chamber with a throwing mechanism, the gears and sliders driven by the motor are used to achieve automatic inflation and throwing of the fire-extinguishing bomb, the problems of inconvenience and safety hazards of the fire-extinguishing bomb are solved, and the fire-extinguishing efficiency and equipment efficiency are improved.

CN120506845APending Publication Date: 2025-08-19QINGHAI LINCAO TECH CO LTD
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Patent Information

Application Number
CN202510678068.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-26
Publication Date
2025-08-19

AI Technical Summary

Technical Problem

The existing fire-extinguishing bombs have inconvenient use due to the lack of throwing mechanisms, and their quality is different, resulting in low fire extinguishing efficiency, failure after storage time and safety hazards.

Method used

A fire-extinguishing bomb cartridge with a throwing mechanism is designed, including blower, polyvinyl chloride filter, launching barrel, sleeve, rod and other components. Through the motor driving gear and slide, the automatic inflation and throwing of the fire-extinguishing bomb is achieved. It is equipped with a display, a verticality sensor and a pressure sensor for real-time monitoring, and the equipment efficiency is improved through the self-generating system.

Benefits of technology

It realizes convenient throwing and real-time monitoring of fire-extinguishing bombs, improves fire-extinguishing efficiency, reduces failure efficiency and safety hazards, and extends the service life of the sealing plate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a fire extinguishing bomb bin with a throwing mechanism and a using method, the fire extinguishing bomb bin comprises a base, the left end of the top of the base is fixedly connected with a first support, the front face of the first support is movably connected with an electric telescopic rod through a rotating shaft, and the telescopic end of the electric telescopic rod is movably connected with a third support. A fire extinguishing bomb is placed in the launching barrel, a motor is controlled to rotate, a gear can be driven to rotate, two toothed plates can be driven to move relatively under the cooperation of a second sliding groove and a sliding block, and therefore under the cooperation of a sleeve and a sleeve rod, a clamping rod can limit a clamping base, an air blower is started, external air can be sucked into a base from an air inlet, and the fire extinguishing bomb is launched. After being filtered by the polyvinyl chloride filter screen, clean air is conveyed into the sleeve by the pipeline and conveyed into the launching cylinder by the one-way pipe, so that the interior of the launching cylinder can be inflated, the sealing plate is in contact with the fire extinguishing bomb, and when the fire extinguishing bomb needs to be launched, the motor is controlled to rotate reversely, so that the clamping rod releases the limiting of the clamping seat.
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Description

Technical Field

[0001] The present invention relates to the technical field of fire extinguishing bombs, in particular to a fire extinguishing bomb magazine provided with a throwing mechanism and a use method thereof. Background Art

[0002] Fire extinguishing bombs are easy to use and powerful, but if they are not used properly, they may fail to detonate, lose their proper effect, and even cause injuries. In particular, the fire extinguishing bombs available on the market are of varying quality. Some fire extinguishing bombs made of ordinary ABC dry powder not only have low fire extinguishing efficiency, but also have inherent defects such as moisture absorption and agglomeration. After being stored for a certain period of time, the proportion of "duds" is very high, which not only affects fire extinguishing but also poses a safety hazard. In addition, the existing fire extinguishing bomb magazine lacks a throwing mechanism, which makes it inconvenient to throw the fire extinguishing bomb, thereby bringing inconvenience to people's use. Summary of the Invention

[0003] The object of the present invention is to provide a fire extinguishing bomb magazine with a throwing mechanism and a method of use, so as to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a fire extinguishing bomb magazine provided with a throwing mechanism, comprising a base, the left end of the top of the base being fixedly connected to a first support, the front of the first support being movably connected to an electric telescopic rod via a rotating shaft, and the telescopic end of the electric telescopic rod being movably connected to a third support, the right side of the third support being fixedly connected to an adjusting rod, the lower end of the adjusting rod being movably connected to a second support via a rotating shaft, and the second support being fixedly connected to the right end of the top of the base, the upper end of the right side of the adjusting rod being fixedly connected to a launching tube, and a fire extinguishing bomb being inserted into the inner surface of the launching tube.

[0005] Preferably, a mounting block is fixedly connected to the bottom of the outer side of the base, a mounting hole is provided on the inner surface of the mounting block, and a display is fixedly connected to the right end of the front side of the base.

[0006] Preferably, an air inlet is provided at the upper end of the left side of the base, a movable door is movably connected to the left end of the front side of the base through a hinge, and a handle is fixedly connected to the front side of the movable door.

[0007] Preferably, the left end of the inner cavity of the base is fixedly connected to a first partition, the upper and lower sides of the left end of the inner cavity of the base are fixedly connected to a slide, and the inner surface of the slide is slidably connected to a polyvinyl chloride filter.

[0008] Preferably, a battery is fixedly connected to the rear end of the bottom of the inner cavity of the base, a charging socket is provided on the back of the base, a blower is fixedly connected to the front end of the bottom of the inner cavity of the base, and the input end of the blower is connected to the front end of the inner surface of the first partition through a pipe.

[0009] Preferably, a sleeve is fixedly connected to the right end of the bottom of the base inner cavity, the upper end of the left side of the sleeve is connected to the output end of the blower through a pipe, and the upper end of the back side of the sleeve is connected to the left end of the bottom of the launch tube through a one-way tube.

[0010] Preferably, the upper end of the inner cavity of the sleeve is fixedly connected to a second partition, the lower end of the inner side of the sleeve is fixedly connected to a stator, the middle end of the inner surface of the second partition is movably connected to a fan blade, and the lower end of the fan blade is fixedly connected to a rotor.

[0011] Preferably, the front and rear sides of the right end of the fire extinguishing bomb are fixedly connected with a holder, the right end of the bottom of the launch tube is fixedly connected with a fourth support, the bottom of the fourth support is fixedly connected with a motor, the output shaft of the motor is fixedly connected with a gear, the left and right ends of the outer surface of the gear are meshed with toothed plates, the inner surface of the toothed plate is provided with a second slide groove, the right end of the bottom of the launch tube is fixedly connected with two sliders, the sliders are slidably connected to the inner cavity of the second slide groove, the end of the toothed plate is fixedly connected with a clamping rod, the outer side of the clamping rod is fixedly connected with a sleeve rod, the end of the sleeve rod is sleeved with a sleeve, and the sleeve is fixedly connected to the right side of the launch tube.

[0012] Preferably, a verticality sensor is fixedly connected to the middle end of the right side of the adjusting rod, a pressure sensor is embedded in the left end of the inner cavity of the launching tube, a first sliding groove is opened at the right end of the inner surface of the launching tube, a slider is slidably connected to the inner surface of the first sliding groove, a sealing plate is fixedly connected to the inner side of the slider, an air vent is opened at the middle end of the inner surface of the sealing plate, a plurality of equidistantly distributed springs are fixedly connected to the right end of the inner side of the first sliding groove, and a buffer plate is fixedly connected to the left side of the spring.

[0013] A method for using a fire extinguishing bomb magazine provided with a throwing mechanism comprises the following steps:

[0014] A. Place the fire extinguisher bomb into the launch tube and control the motor to rotate, which drives the gear to rotate. The second slide and the slider cooperate to drive the two tooth plates to move relative to each other. With the cooperation of the sleeve and the sleeve rod, the clamping rod can limit the clamping seat. Turn on the blower to draw outside air into the base through the air inlet. After being filtered by the PVC filter, the clean air is transported into the sleeve through the pipe and then into the launch tube through the one-way pipe. This inflates the interior of the launch tube and brings the sealing plate into contact with the fire extinguisher bomb. When the fire extinguisher bomb needs to be launched, control the motor to rotate in the opposite direction, so that the clamping rod releases the clamping seat.

[0015] B. Control the extension and retraction of the electric telescopic rod. The tilt angle of the adjustment rod can be adjusted with the cooperation of the first, second and third supports. The verticality sensor can adjust the tilt angle of the launch tube. The pressure sensor can detect the air pressure inside the launch tube. The display can display the detection information of the verticality sensor and the pressure sensor.

[0016] C. When air is transported into the sleeve through the pipe, the fan blades will rotate, which will drive the rotor to rotate and generate electricity with the cooperation of the stator. The electricity is stored in the battery, thus achieving the purpose of self-generation;

[0017] D. When the clamping rod releases the limit on the clamping seat, the air pressure can quickly push out the sealing plate with the cooperation of the slider and the first sliding groove. In this process, the buffer plate and the spring can buffer the sealing plate to increase the service life of the sealing plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention is provided with a blower, a polyvinyl chloride filter, a fire extinguishing bomb, a launch tube, a sleeve, a sleeve rod, a clamping rod, a second slide groove, a motor, a slider, a gear, a fourth support and a tooth plate. The fire extinguishing bomb is placed in the launch tube, and the motor is controlled to rotate to drive the gear to rotate. Under the cooperation of the second slide groove and the slider, the two tooth plates can be driven to move relative to each other, so that under the cooperation of the sleeve and the sleeve rod, the clamping rod can limit the clamping seat. When the blower is turned on, the outside air can be sucked into the base from the air inlet, and after being filtered by the polyvinyl chloride filter, the clean air is transported into the sleeve through the pipeline and transported into the launch tube through the one-way pipe, so that the inside of the launch tube can be inflated, so that the sealing plate contacts the fire extinguishing bomb. When the fire extinguishing bomb needs to be launched, the motor is controlled to rotate in the opposite direction, so that the clamping rod releases the limit on the clamping seat. A display, a verticality sensor, a pressure sensor, an electric telescopic rod, an adjusting rod, a second support, a first support and a third support are provided. The electric telescopic rod is controlled to extend and retract, and the inclination angle of the adjusting rod can be adjusted with the cooperation of the first support, the second support and the third support, and the verticality sensor can adjust the inclination angle of the launch tube, the pressure sensor can detect the air pressure inside the launch tube, and the display can display the detection information of the verticality sensor and the pressure sensor. A stator, a rotor, a second partition, fan blades, a sleeve and a battery are set. When air is transported into the sleeve by the pipe, the fan blades will rotate, and the fan blades will drive the rotor to rotate when rotating, and with the cooperation of the stator, electrical energy can be generated and stored in the battery, thereby achieving the purpose of self-generation. A buffer plate, a slider, a first slide groove, a sealing plate and a spring are set. When the card rod releases the limit on the card seat, with the cooperation of the slider and the first slide groove, the air pressure can quickly push out the sealing plate, and in this process, the buffer plate and the spring can buffer the sealing plate to increase the service life of the sealing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention in the first viewing angle state;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention in a second viewing angle state;

[0022] Figure 3 This is a schematic cross-sectional structural diagram of the base of the present invention;

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the launch tube of the present invention;

[0024] Figure 5 This is a schematic diagram of the fourth support structure of the present invention.

[0025] In the figure: base 1, display 2, verticality sensor 3, mounting hole 4, fire extinguishing bomb 5, launching tube 6, electric telescopic rod 7, handle 8, movable door 9, card seat 10, adjusting rod 11, second support 12, charging jack 13, first support 14, mounting block 15, air inlet 16, third support 17, polyvinyl chloride filter 18, first partition 19, blower 20, stator 21, rotor 22, second partition 23, fan blade 24, sleeve 25, battery 26, slide 27, sleeve 28, buffer plate 29, slider 30, pressure sensor 31, first slide 32, sealing plate 33, spring 34, sleeve rod 35, card rod 36, second slide 37, motor 38, slider 39, gear 40, fourth support 41, tooth plate 42, air vent 43. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 5 , including a base 1, the left end of the top of the base 1 is fixedly connected to a first support 14, the front of the first support 14 is movably connected to an electric telescopic rod 7 through a rotating shaft, and the telescopic end of the electric telescopic rod 7 is movably connected to a third support 17, the right side of the third support 17 is fixedly connected to an adjusting rod 11, the lower end of the adjusting rod 11 is movably connected to a second support 12 through a rotating shaft, and the second support 12 is fixedly connected to the right end of the top of the base 1, the upper end of the right side of the adjusting rod 11 is fixedly connected to a launching tube 6, and a fire extinguishing bomb 5 is inserted into the inner surface of the launching tube 6.

[0028] The bottom of the outer side of the base 1 is fixedly connected to a mounting block 15, the inner surface of the mounting block 15 is provided with a mounting hole 4, and the right end of the front of the base 1 is fixedly connected to the display 2, the upper end of the left side of the base 1 is provided with an air inlet 16, the left end of the front of the base 1 is movably connected to a movable door 9 through a hinge, and the front of the movable door 9 is fixedly connected to a handle 8, the left end of the inner cavity of the base 1 is fixedly connected to a first partition 19, the upper and lower sides of the left end of the inner cavity of the base 1 are fixedly connected to a slide 27, and the inner surface of the slide 27 is slidably connected to a polyvinyl chloride filter 18, the rear end of the bottom of the inner cavity of the base 1 is fixedly connected to a battery 26, the back of the base 1 A charging socket 13 is provided, a blower 20 is fixedly connected to the front end of the bottom of the inner cavity of the base 1, and the input end of the blower 20 is communicated with the front end of the inner surface of the first partition 19 through a pipe, a sleeve 25 is fixedly connected to the right end of the bottom of the inner cavity of the base 1, the upper end of the left side of the sleeve 25 is communicated with the output end of the blower 20 through a pipe, and the upper end of the back of the sleeve 25 is communicated with the left end of the bottom of the launch tube 6 through a one-way tube, the upper end of the inner cavity of the sleeve 25 is fixedly connected to the second partition 23, the lower end of the inner side of the sleeve 25 is fixedly connected to the stator 21, the middle end of the inner surface of the second partition 23 is movably connected to the fan blade 24, and the lower end of the fan blade 24 is movably connected to the fan blade 24. The end is fixedly connected to the rotor 22, the front and rear sides of the right end of the fire extinguishing bomb 5 are fixedly connected to the card seat 10, the right end of the bottom of the launch tube 6 is fixedly connected to the fourth support 41, the bottom of the fourth support 41 is fixedly connected to the motor 38, the output shaft of the motor 38 is fixedly connected to the gear 40, the left and right ends of the outer surface of the gear 40 are meshed with the tooth plate 42, the inner surface of the tooth plate 42 is provided with a second slide groove 37, the right end of the bottom of the launch tube 6 is fixedly connected to two sliders 39, the slider 39 is slidably connected to the inner cavity of the second slide groove 37, the end of the tooth plate 42 is fixedly connected to the card rod 36, and the outer side of the card rod 36 is fixedly connected to the sleeve rod 35, the end of the sleeve rod 35 is sleeved with a sleeve 28, and the sleeve 28 is fixedly connected to the right side of the launch tube 6, the middle end of the right side of the adjusting rod 11 is fixedly connected to the verticality sensor 3, the left end of the inner cavity of the launch tube 6 is embedded with a pressure sensor 31, the right end of the inner surface of the launch tube 6 is provided with a first slide groove 32, the inner surface of the first slide groove 32 is slidably connected to the slider 30, the inner side of the slider 30 is fixedly connected to a sealing plate 33, the middle end of the inner surface of the sealing plate 33 is provided with an air release hole 43, the right end of the inner side of the first slide groove 32 is fixedly connected to a plurality of equidistantly distributed springs 34, and the left side of the spring 34 is fixedly connected to the buffer plate 29.

[0029] A method for using a fire extinguishing bomb magazine provided with a throwing mechanism comprises the following steps:

[0030] A. Place the fire extinguishing bomb 5 into the launch tube 6 and control the motor 38 to rotate, which can drive the gear 40 to rotate. Under the cooperation of the second slide 37 and the slider 39, the two tooth plates 42 can be driven to move relative to each other. As a result, under the cooperation of the sleeve 28 and the sleeve rod 35, the clamping rod 36 can limit the base 10. Turn on the blower 20 to draw outside air into the base 1 through the air inlet 16. After being filtered by the polyvinyl chloride filter 18, the clean air is transported to the sleeve 25 through the pipe and then to the launch tube 6 through the one-way pipe, thereby inflating the interior of the launch tube 6 and bringing the sealing plate 33 into contact with the fire extinguishing bomb 5. When the fire extinguishing bomb 5 needs to be launched, the motor 38 is controlled to rotate in the opposite direction, so that the clamping rod 36 releases the limit on the base 10.

[0031] B. Controlling the extension and retraction of the electric telescopic rod 7. The tilt angle of the adjusting rod 11 can be adjusted in cooperation with the first support 14, the second support 12, and the third support 17. The verticality sensor 3 can adjust the tilt angle of the launching tube 6. The pressure sensor 31 can detect the air pressure inside the launching tube 6. The display 2 can display the detection information of the verticality sensor 3 and the pressure sensor 31.

[0032] C. When air is transported into the sleeve 25 through the pipe, the fan blades 24 rotate, which in turn drives the rotor 22 to rotate. In cooperation with the stator 21, electrical energy is generated and stored in the battery 26, thereby achieving the purpose of self-generation.

[0033] D. When the locking rod 36 releases the limit on the locking base 10, with the cooperation of the slider 30 and the first slide groove 32, the air pressure can quickly push out the sealing plate 33, and in this process, the buffer plate 29 and the spring 34 can buffer the sealing plate 33 to increase the service life of the sealing plate 33.

[0034] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A fire extinguishing bomb magazine provided with a throwing mechanism, comprising a base (1), characterized in that: The left end of the top of the base (1) is fixedly connected to a first support (14), the front of the first support (14) is movably connected to an electric telescopic rod (7) via a rotating shaft, and the telescopic end of the electric telescopic rod (7) is movably connected to a third support (17), the right side of the third support (17) is fixedly connected to an adjustment rod (11), the lower end of the adjustment rod (11) is movably connected to a second support (12) via a rotating shaft, and the second support (12) is fixedly connected to the right end of the top of the base (1), the upper end of the right side of the adjustment rod (11) is fixedly connected to a launch tube (6), and a fire extinguishing bomb (5) is inserted into the inner surface of the launch tube (6).

2. The fire extinguishing bomb magazine with a throwing mechanism according to claim 1, characterized in that: The bottom of the outer side of the base (1) is fixedly connected to a mounting block (15), the inner surface of the mounting block (15) is provided with a mounting hole (4), and the right end of the front side of the base (1) is fixedly connected to a display (2).

3. The fire extinguishing bomb magazine with a throwing mechanism according to claim 1, characterized in that: An air inlet (16) is provided at the upper end of the left side of the base (1), and a movable door (9) is movably connected to the left end of the front side of the base (1) via a hinge, and a handle (8) is fixedly connected to the front side of the movable door (9).

4. The fire extinguishing bomb magazine with a throwing mechanism according to claim 1, characterized in that: The left end of the inner cavity of the base (1) is fixedly connected to a first partition (19), the upper and lower sides of the left end of the inner cavity of the base (1) are fixedly connected to a slide seat (27), and the inner surface of the slide seat (27) is slidably connected to a polyvinyl chloride filter (18).

5. The fire extinguishing bomb magazine with a throwing mechanism according to claim 4, characterized in that: A battery (26) is fixedly connected to the rear end of the bottom of the inner cavity of the base (1), a charging socket (13) is provided on the back of the base (1), a blower (20) is fixedly connected to the front end of the bottom of the inner cavity of the base (1), and an input end of the blower (20) is communicated with the front end of the inner surface of the first partition (19) through a pipeline.

6. The fire extinguishing bomb magazine with a throwing mechanism according to claim 5, characterized in that: The right end of the bottom of the inner cavity of the base (1) is fixedly connected to a sleeve (25), the upper end of the left side of the sleeve (25) is connected to the output end of the blower (20) through a pipeline, and the upper end of the back side of the sleeve (25) is connected to the left end of the bottom of the launch tube (6) through a one-way tube.

7. The fire extinguishing bomb magazine with a throwing mechanism according to claim 6, characterized in that: The upper end of the inner cavity of the sleeve (25) is fixedly connected to the second partition (23), the lower end of the inner side of the sleeve (25) is fixedly connected to the stator (21), the middle end of the inner surface of the second partition (23) is movably connected to the fan blade (24), and the lower end of the fan blade (24) is fixedly connected to the rotor (22).

8. The fire extinguishing bomb magazine with a throwing mechanism according to claim 1, characterized in that: The front and rear sides of the right end of the fire extinguishing bomb (5) are fixedly connected with a card seat (10), the right end of the bottom of the launch tube (6) is fixedly connected with a fourth support (41), the bottom of the fourth support (41) is fixedly connected with a motor (38), the output shaft of the motor (38) is fixedly connected with a gear (40), the left and right ends of the outer surface of the gear (40) are meshed with a tooth plate (42), the inner surface of the tooth plate (42) is provided with a second slide groove (37), the right end of the bottom of the launch tube (6) is fixedly connected with two sliders (39), the sliders (39) are slidably connected to the inner cavity of the second slide groove (37), the end of the tooth plate (42) is fixedly connected with a card rod (36), the outer side of the card rod (36) is fixedly connected with a sleeve rod (35), the end of the sleeve rod (35) is sleeved with a sleeve (28), and the sleeve (28) is fixedly connected to the right side of the launch tube (6).

9. The fire extinguishing bomb magazine with a throwing mechanism according to claim 1, characterized in that: The middle end of the right side of the regulating rod (11) is fixedly connected to a verticality sensor (3), the left end of the inner cavity of the launch tube (6) is embedded with a pressure sensor (31), the right end of the inner surface of the launch tube (6) is provided with a first slide groove (32), the inner surface of the first slide groove (32) is slidably connected to a slider (30), the inner side of the slider (30) is fixedly connected to a sealing plate (33), the middle end of the inner surface of the sealing plate (33) is provided with an air release hole (43), the right end of the inner side of the first slide groove (32) is fixedly connected to a plurality of equidistantly distributed springs (34), and the left side of the spring (34) is fixedly connected to a buffer plate (29).

10. A method for using a fire extinguishing bomb magazine equipped with a throwing mechanism, characterized in that: The following steps are involved: A. Place the fire extinguishing bomb (5) into the launch tube (6), control the motor (38) to rotate, drive the gear (40) to rotate, and drive the two tooth plates (42) to move relative to each other under the cooperation of the second slide groove (37) and the slider (39), so that the clamping rod (36) can limit the clamping seat (10) under the cooperation of the sleeve (28) and the sleeve rod (35), turn on the blower (20), and the outside air can be sucked into the base (1) from the air inlet (16). After being filtered by the polyvinyl chloride filter (18), the clean air is transported to the sleeve (25) through the pipeline and transported to the launch tube (6) through the one-way pipe, so that the inside of the launch tube (6) can be inflated, so that the sealing plate (33) contacts the fire extinguishing bomb (5). When the fire extinguishing bomb (5) needs to be launched, control the motor (38) to rotate in the opposite direction, so that the clamping rod (36) releases the limit on the clamping seat (10); B. Controlling the extension and retraction of the electric telescopic rod (7); adjusting the tilt angle of the adjusting rod (11) in cooperation with the first support (14), the second support (12) and the third support (17); and adjusting the tilt angle of the launching tube (6) by the verticality sensor (3); detecting the air pressure inside the launching tube (6) by the pressure sensor (31); and displaying the detection information of the verticality sensor (3) and the pressure sensor (31); C. When air is transported into the sleeve (25) through the pipe, the fan blades (24) rotate, which drives the rotor (22) to rotate. In cooperation with the stator (21), electric energy is generated and stored in the battery (26), thereby achieving the purpose of self-generation. D. When the clamping rod (36) releases the limit on the clamping seat (10), the air pressure can quickly push out the sealing plate (33) under the cooperation of the slider (30) and the first slide groove (32), and in this process, the buffer plate (29) and the spring (34) can buffer the sealing plate (33) to improve the service life of the sealing plate (33).