Fixing mechanism for shelter fire extinguisher

Abstract

The invention belongs to the technical field of shelter fire fighting, and discloses a shelter fire extinguisher fixing mechanism which comprises a fixing frame. The mounting plate is arranged at the top of one side of the fixing frame; the clamping assembly is arranged inside and above the other side of the fixing frame; the triggering assembly is arranged in the middle of the bottom end of the fixing frame; according to the technical scheme, by arranging the triggering assembly and the pushing assembly, the fire extinguisher is integrally inserted into the bottom of the fixing frame downwards, downward pressing of the top of the triggering assembly can be relieved at the moment, and therefore the triggering assembly can be driven to operate; the two pushing assemblies are driven to push the clamping assemblies on the two sides to move oppositely, so that the inner sides of the clamping assemblies are released from the surfaces of fire extinguishers of the corresponding sizes, the fire extinguishers of different sizes and models can be clamped, and the limitation that only a single fire extinguisher can be fixedly installed is avoided; and the application range is greatly expanded.

Description

Technical Field

[0001] The invention belongs to the technical field of shelter fire protection, and in particular is a fixing mechanism for a shelter fire extinguisher. Background Art

[0002] A shelter refers to a box-type workroom that is formed by organically combining various solid materials and has a fixed or expandable volume, protective performance and can be transported. Fire extinguishers are placed inside the shelter, and corresponding fixing mechanisms are used to place fire extinguishers, which are mainly used to stably and safely fix the fire extinguishers.

[0003] The existing fixing mechanism for cabin fire extinguishers is to fix the entire mechanism on the wall, and place the fire extinguisher inside for clamping and fixing, so that the fire extinguisher as a whole is hung on the wall and fixed. However, the clamping parts in the fixing mechanism are of fixed design, so that only fire extinguishers of the same size and model can be clamped and fixed, and fire extinguishers of different sizes and models cannot be clamped, which greatly reduces the scope of use of a single fixing mechanism, and therefore it is necessary to improve it. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a fixing mechanism for a cabin fire extinguisher, which has the advantage of being able to clamp and fix fire extinguishers of various sizes.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fixing mechanism for a square cabin fire extinguisher, comprising a fixing frame; a mounting plate, arranged at the top of one side of the fixing frame; a clamping assembly, arranged inside and above the other side of the fixing frame; a triggering assembly, arranged in the middle of the bottom end of the fixing frame; a pushing assembly, comprising a second gas cylinder, the second gas cylinder is fixedly installed at the bottom of the inner cavity of the fixing frame, and is located between the clamping assembly and the triggering assembly, the inner cavity of the second gas cylinder is movably equipped with a second piston rod, the outer end of the second piston rod is fixedly equipped with a sliding block, the top end of the sliding block is fixedly connected to the inner bottom end of the clamping assembly, and the bottom of the outer end of the second gas cylinder is fixedly connected to the outer end of the triggering assembly through a ventilation pipe.

[0006] Preferably, the clamping assembly comprises a sliding frame, a clamping frame, a rubber block and a telescopic connecting plate;

[0007] The sliding frame is slidably installed on the other side of the fixed frame, the clamping frame is movably installed on both sides of the bottom end of the fixed frame and both sides of the sliding frame, the outer ends of the clamping frames are connected by a telescopic connecting plate, and the rubber block is arranged on the inner side of the clamping frame.

[0008] Preferably, the trigger assembly comprises a trigger button, a first pneumatic cylinder, a first piston rod, a first connecting spring and a linkage arm;

[0009] The trigger button is movably installed in the middle of the inner cavity at the bottom end of the fixing frame, the first pneumatic cylinder is arranged at the bottom end of the fixing frame and is located below the outer side of the trigger button, the first piston rod is movably installed in the inner cavity of the first pneumatic cylinder, the first piston rod is elastically connected to the inner wall of the first pneumatic cylinder through a first connecting spring, and the linkage arm is hinged between the top of the inner end of the first piston rod and the bottom end of the trigger button.

[0010] Preferably, the other end of the ventilation pipe is fixedly connected to the middle part of the outer end of the first pneumatic cylinder.

[0011] Preferably, a clamping assembly located inside the second gas cylinder is provided at the bottom of the fixing frame, and the clamping assembly includes a first hydraulic cylinder, a driving piston rod, a linkage block and a clamping tooth plate;

[0012] The first hydraulic cylinder is fixedly installed at the bottom of the fixed frame and is located between the second gas cylinder and the trigger button block. The driving piston rod is movably installed in the inner cavity of the first hydraulic cylinder. The outer end of the driving piston rod passes through the first hydraulic cylinder. The tooth plate is movably installed inside the fixed frame and is located outside the sliding block. The linkage block is fixedly installed on the inner side of the tooth plate. Both sides of the outer end of the driving piston rod are slidably connected to the inner wall of the linkage block.

[0013] Preferably, the inner side of the latch plate is meshed with the outer side of the sliding block.

[0014] Preferably, a pressing assembly located above one side of the sliding frame is provided on the inner side of the fixing frame, and the pressing assembly includes a sliding rod, a pressing plate and a return spring;

[0015] The sliding rod is fixedly installed on the inner side of the fixing frame and is located on one side of the sliding frame. The pressing plate is slidably connected to the surface of the sliding rod. The pressing plate is elastically connected to the fixing frame via a return spring.

[0016] Preferably, a transmission assembly located between the clamping frame and the pressing plate is arranged on the inner side of the fixing frame, and the transmission assembly includes a first rack, a first rack, a second rack and a transmission gear;

[0017] The first rack is arranged on the outer side of the pressing plate, the second rack is arranged on the inner end of one side of the clamping frame, the transmission gear is movably sleeved on the inner side of the fixing frame and is located between the first rack and the second rack, and the inner sides of the first rack and the second rack are both meshed with the surface of the transmission gear.

[0018] Preferably, power components are arranged on both sides of the top of the fixing frame, and the power components include a second hydraulic cylinder, a hydraulic piston rod, a second connecting spring and an oil pipeline;

[0019] The second hydraulic cylinder is fixedly installed on both sides of the top of the fixing frame, the hydraulic piston rod is movably installed in the inner cavity of the second hydraulic cylinder, and the top of the fixing frame is movably installed with a piston frame located above the hydraulic piston rod, the bottom ends of both sides of the piston frame are slidably connected to the inner cavity of the second hydraulic cylinder, the top end of the hydraulic piston rod is elastically connected to the bottom end of the piston frame through a second connecting spring, and the second hydraulic cylinder is fixedly connected to the first hydraulic cylinder through an oil pipeline.

[0020] Preferably, a threaded rod located at the lower inner side of the piston frame is threadedly sleeved on the top end of the fixing frame, and the top end of the threaded rod is movably sleeved on the bottom end of the piston frame.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The above technical solution is to set a trigger component and a pushing component, and insert the fire extinguisher as a whole downward to the bottom of the fixing frame. At this time, the downward pressure on the top of the trigger component will be released, thereby driving the trigger component to operate, so that the two pushing components are driven to push the clamping components on both sides to move towards each other, so that the inner side of the clamping component can be released from the surface of the fire extinguisher of the corresponding size, thereby clamping fire extinguishers of different sizes and models, avoiding the limitation of only being able to fix and install a single fire extinguisher, and greatly improving the scope of use.

[0023] The present invention provides a clamping assembly and a power assembly. When the power assembly as a whole is driven to push the internal hydraulic oil out, the hydraulic oil can be transported to the interior of the clamping assembly, so that the clamping assembly drives the two sides of the outer end to clamp and fix the outer end part of the pushing assembly, thereby the clamping assembly as a whole can be synchronously locked and fixed, so that the clamping assembly as a whole can smoothly clamp and fix the fire extinguisher, greatly improving the clamping stability of the clamping assembly and preventing the clamping effect from being released due to the synchronous shaking of the clamping assembly when the fire extinguisher is shaken.

[0024] The present invention provides a pressing assembly and a transmission assembly. When the fire extinguisher is placed on the bottom of the fixing frame from top to bottom, the top end of the pressing assembly can be pushed to slide downward as a whole. At this time, the sliding frame and the clamping frame can be driven to move upward as a whole through the transmission assembly, and the telescopic connecting plate will be stretched. After that, when the sliding frame moves to the top, it will push the bottom end of the power assembly, and then the hydraulic oil in the power assembly can be smoothly pushed into the clamping assembly. The fire extinguisher is completely dropped and directly clamped and fixed, thereby avoiding the cumbersome operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the clamping assembly of the present invention;

[0027] Figure 3 for Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0028] Figure 4 It is a partial cross-sectional structural schematic diagram of the clamping assembly of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the latch plate of the present invention;

[0030] Figure 6 for Figure 5 A schematic diagram of the local enlarged structure at B in the middle;

[0031] Figure 7 is a schematic cross-sectional structural diagram of the first rack of the present invention;

[0032] Figure 8 for Figure 7 A schematic diagram of the local enlarged structure at C in the middle;

[0033] Fig. 9 It is a schematic diagram of the partial structure of the transmission assembly of the present invention.

[0034] In the figure: 1, fixed frame; 2, mounting plate; 3, clamping assembly; 301, sliding frame; 302, clamping frame; 303, rubber block; 304, telescopic connecting plate; 4, trigger assembly; 401, trigger button; 402, first pneumatic cylinder; 403, first piston rod; 404, first connecting spring; 405, linkage arm; 5, pushing assembly; 501, second gas cylinder; 502, second piston rod; 503, sliding block; 504, ventilation pipe; 6, clamping assembly; 601, first hydraulic cylinder; 602, driving piston rod; 603, linkage block; 604, latch plate; 7, pressing assembly; 701, sliding rod; 702, pressing plate; 703, return spring; 8, transmission assembly; 801, first rack; 802, second rack; 803, transmission gear; 9, power assembly; 901, second hydraulic cylinder; 902, hydraulic piston rod; 903, second connecting spring; 904, oil pipeline; 10, piston rack; 11, threaded rod. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0036] like Figures 1 to 9As shown, the present invention provides a fixing mechanism for a cabin fire extinguisher, comprising a fixing frame 1; a mounting plate 2, arranged at the top of one side of the fixing frame 1; a clamping assembly 3, arranged inside and above the other side of the fixing frame 1; a triggering assembly 4, arranged at the middle of the bottom end of the fixing frame 1; a pushing assembly 5, comprising a second gas cylinder 501, the second gas cylinder 501 is fixedly installed at the bottom of the inner cavity of the fixing frame 1, and is located between the clamping assembly 3 and the triggering assembly 4, the inner cavity of the second gas cylinder 501 is movably equipped with a second piston rod 502, the outer end of the second piston rod 502 is fixedly equipped with a sliding block 503, the top end of the sliding block 503 is fixedly connected to the inner bottom end of the clamping assembly 3, and the bottom of the outer end of the second gas cylinder 501 is fixedly connected to the outer end of the triggering assembly 4 through a ventilation pipe 504.

[0037] By dropping the fire extinguisher and pressing the trigger assembly 4, the gas inside the outer end of the bottom of the trigger assembly 4 can enter the second gas cylinder 501 through the ventilation pipe 504, which can increase the gas pressure in the inner cavity outside the second gas cylinder 501 and push the second piston rod 502 to drive the sliding block 503 and the clamping assembly 3 as a whole to move towards each other, so as to clamp the fire extinguisher inside.

[0038] like Figure 2 As shown, the clamping assembly 3 includes a sliding frame 301, a clamping frame 302, a rubber block 303 and a telescopic connecting plate 304;

[0039] The sliding frame 301 is slidably installed on the other side of the fixed frame 1, and the clamping frame 302 is movably installed on both sides of the bottom end of the fixed frame 1 and both sides of the sliding frame 301. The outer ends of the clamping frames 302 are connected by a telescopic connecting plate 304, and the rubber block 303 is arranged on the inner side of the clamping frame 302.

[0040] The above solution is adopted: by providing the rubber block 303 and the telescopic connecting plate 304, the rubber block 303 can be deformed and fitted with the surface of fire extinguishers of different sizes through its deformability, thereby meeting the requirements for clamping and fixing fire extinguishers of various sizes.

[0041] like Figure 3 As shown, the trigger assembly 4 includes a trigger button 401, a first pneumatic cylinder 402, a first piston rod 403, a first connecting spring 404 and a linkage arm 405;

[0042] The trigger button 401 is movably installed in the middle of the inner cavity at the bottom end of the fixing frame 1, the first pneumatic cylinder 402 is arranged at the bottom end of the fixing frame 1 and is located below the outer side of the trigger button 401, the first piston rod 403 is movably installed in the inner cavity of the first pneumatic cylinder 402, the first piston rod 403 is elastically connected to the inner wall of the first pneumatic cylinder 402 through the first connecting spring 404, and the linkage arm 405 is hinged between the top of the inner end of the first piston rod 403 and the bottom end of the trigger button 401.

[0043] By adopting the above solution: by providing a linkage arm 405, when the trigger button 401 moves downward as a whole, the linkage arm 405 can be pushed to deflect, thereby squeezing and pushing the two first piston rods 403 to move in opposite directions, thereby pushing the gas outside the trigger button 401 outward.

[0044] like Figure 3 As shown, the other end of the ventilation pipe 504 is fixedly connected to the middle part of the outer end of the first pneumatic cylinder 402.

[0045] By adopting the above solution: by providing a ventilation pipe 504, when the inner cavity of the first pneumatic cylinder 402 is pushed outward, it can enter the outer inner cavity of the second gas cylinder 501 through the ventilation pipe 504, thereby smoothly driving the second piston rod 502 and the sliding block 503 to move toward each other.

[0046] like Figure 4 As shown, a clamping assembly 6 located inside the second gas cylinder 501 is disposed at the bottom of the fixing frame 1, and the clamping assembly 6 includes a first hydraulic cylinder 601, a driving piston rod 602, a linkage block 603 and a clamping tooth plate 604;

[0047] The first hydraulic cylinder 601 is fixedly installed at the bottom of the fixed frame 1 and is located between the second gas cylinder 501 and the trigger button 401. The driving piston rod 602 is movably installed in the inner cavity of the first hydraulic cylinder 601. The outer end of the driving piston rod 602 passes through the first hydraulic cylinder 601. The tooth plate 604 is movably installed inside the fixed frame 1 and is located on the outside of the sliding block 503. The linkage block 603 is fixedly installed on the inner side of the tooth plate 604. The two sides of the outer end of the driving piston rod 602 are slidably connected to the inner wall of the linkage block 603.

[0048] By adopting the above solution, the driving piston rod 602 is provided, and when the driving piston rod 602 as a whole moves toward each other, the two ends of the driving piston rod 602 can drive the linkage block 603 and the latch plate 604 as a whole to move toward each other.

[0049] like Figure 4 and Figure 5 As shown, the inner side of the latch plate 604 is engaged with the outer side of the sliding block 503 .

[0050] By adopting the above solution, by providing the latch plate 604, when the two latch plates 604 are driven to move toward each other, the inner teeth of the latch plate 604 can be meshed and clamped with the outer teeth of the sliding block 503, so that the sliding block 503 can be clamped and fixed as a whole.

[0051] like Fig. 9 As shown, a pressing assembly 7 is provided on the inner side of the fixed frame 1 and is located above one side of the sliding frame 301. The pressing assembly 7 includes a sliding rod 701, a pressing plate 702 and a return spring 703;

[0052] The sliding rod 701 is fixedly installed on the inner side of the fixing frame 1 and is located on one side of the sliding frame 301 . The pressing plate 702 is slidably connected to the surface of the sliding rod 701 . The pressing plate 702 is elastically connected to the fixing frame 1 via a return spring 703 .

[0053] The above solution is adopted: by providing a return spring 703, when the pressing plate 702 is pushed downward as a whole, the return spring 703 will be compressed at the same time, and when the elastic force of the return spring 703 is released, the pressing plate 702 can be pushed to return upward as a whole.

[0054] like Figure 7 and Fig. 9 As shown, a transmission assembly 8 is disposed on the inner side of the fixing frame 1 between the clamping frame 302 and the pressing plate 702 , and the transmission assembly 8 includes a first rack 801 , a first rack 801 , a second rack 802 and a transmission gear 803 ;

[0055] The first rack 801 is arranged on the outside of the pressing plate 702, the second rack 802 is arranged on the inner end of one side of the clamping frame 302, the transmission gear 803 is movably sleeved on the inner side of the fixing frame 1, and is located between the first rack 801 and the second rack 802, and the inner sides of the first rack 801 and the second rack 802 are both meshed with the surface of the transmission gear 803.

[0056] By adopting the above solution, the transmission gear 803 is provided, and when the pressing plate 702 moves downward as a whole, the first rack 801 can be driven downward synchronously, so that the transmission gear 803 can rotate to drive the second rack 802 and the sliding frame 301 to move upward as a whole.

[0057] like Figure 8 As shown, power components 9 are arranged on both sides of the top of the fixing frame 1, and the power components 9 include a second hydraulic cylinder 901, a hydraulic piston rod 902, a second connecting spring 903 and an oil pipeline 904;

[0058] The second hydraulic cylinder 901 is fixedly installed on both sides of the top of the fixed frame 1, and the hydraulic piston rod 902 is movably installed in the inner cavity of the second hydraulic cylinder 901. The top of the fixed frame 1 is movably installed with a piston frame 10 located above the hydraulic piston rod 902. The bottom ends of both sides of the piston frame 10 are slidingly connected to the inner cavity of the second hydraulic cylinder 901. The top end of the hydraulic piston rod 902 is elastically connected to the bottom end of the piston frame 10 through the second connecting spring 903. The second hydraulic cylinder 901 is fixedly connected to the first hydraulic cylinder 601 through the oil pipeline 904.

[0059] The above scheme is adopted: by providing a hydraulic piston rod 902, when the sliding frame 301 rises to the top as a whole, it will push the hydraulic piston rod 902 to move upward as a whole, thereby pushing the hydraulic oil between the hydraulic piston rod 902 and the piston frame 10 into the outer inner cavity of the first hydraulic cylinder 601 through the oil pipeline 904, thereby smoothly driving the two driving piston rods 602 to move towards each other.

[0060] like Figure 8 As shown, the top end of the fixing frame 1 is threadedly sleeved with a threaded rod 11 located at the lower inner side of the piston frame 10 , and the top end of the threaded rod 11 is movably sleeved with the bottom end of the piston frame 10 .

[0061] The above scheme is adopted: by providing a threaded rod 11, the operator can drive the piston frame 10 as a whole by rotating the threaded rod 11, and the two ends of the piston frame 10 move upward in the inner cavity of the second hydraulic cylinder 901, thereby generating negative pressure and drawing back the hydraulic oil in the inner cavity of the first hydraulic cylinder 601 through the oil pipeline 904.

[0062] The working principle and use process of the present invention:

[0063] First, the operator can install the entire fixed frame 1 on the wall through the mounting plate 2, and then can contact the bottom of the fire extinguisher of the corresponding size and model with the top of the pressing plate 702 and press the pressing plate 702 and the first rack 801 downward synchronously as a whole. At this time, since the inner sides of the first rack 801 and the second rack 802 are meshed with the transmission gear 803, the first rack 801 can drive the transmission gear 803 downward to rotate and drive the second rack 802 and the sliding frame 301 as well as the top clamping frame 302 and the rubber block 303 as a whole upward, and the telescopic connecting plate 304 will be stretched to keep the top clamping frame 302 and the bottom clamping frame 302 connected.

[0064] Afterwards, when the fire extinguisher is downward, the trigger button 401 can be pushed downward as a whole, so as to squeeze and push the linkage arm 405 to deflect, thereby pushing the two first piston rods 403 to move away from each other, and then the gas outside the inner cavity of the first pneumatic cylinder 402 can be pushed to enter the outer side of the inner cavity of the second gas cylinder 501 through the ventilation pipe 504, so that the air pressure outside the second gas cylinder 501 becomes larger and pushes the two second piston rods 502 and the sliding block 503 to drive the rubber block 303 to move towards each other as a whole, so as to clamp and fix the top and bottom of the fire extinguisher of corresponding size.

[0065] At the same time, when the fire extinguisher pushes the pressing plate 702 to move to the bottom, the sliding frame 301 will rise to the top, thereby pushing the bottom end of the hydraulic piston rod 902 upward. At this time, the hydraulic oil in the middle of the second hydraulic cylinder 901 is pushed into the outer inner cavity of the first hydraulic cylinder 601 through the oil pipe 904, thereby increasing the hydraulic pressure of the outer inner cavity of the first hydraulic cylinder 601, and then the two driving piston rods 602 can be smoothly pushed to move towards each other, so that the two ends of the driving piston rod 602 slide along the inner side of the linkage block 603 and drive the two linkage blocks 603 and the tooth plate 604 towards each other. Finally, due to the meshing and clamping relationship between the inner side of the tooth plate 604 and the outer side of the sliding block 503, the inner side of the tooth plate 604 can be engaged with the sliding block 503, so that the sliding block 503 and the clamping assembly 3 are fixed as a whole, and then the fire extinguisher of the corresponding size and model can be installed and fixed.

[0066] Then, when the fire extinguisher needs to be taken out quickly for use, the rotatable threaded rod 11 drives the piston frame 10 upward as a whole, so that negative pressure is generated in the inner cavity of the second hydraulic cylinder 901 and the hydraulic oil in the inner cavity of the first hydraulic cylinder 601 is extracted through the oil pipeline 904, so that the overall fixation of the sliding block 503 and the clamping assembly 3 is released, and then the clamping fixation of the fire extinguisher is released, and then the fire extinguisher can be pulled out upward for use.

[0067] 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.

[0068] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing mechanism for a shelter fire extinguisher, characterized in that: It comprises a fixing frame (1); A mounting plate (2) is arranged on the top of one side of the fixing frame (1); A clamping assembly (3) is arranged inside and above the other side of the fixing frame (1); A trigger assembly (4) is arranged at the middle of the bottom end of the fixing frame (1); The pushing assembly (5) comprises a second gas cylinder (501), the second gas cylinder (501) is fixedly mounted on the bottom of the inner cavity of the fixing frame (1) and is located between the clamping assembly (3) and the triggering assembly (4), a second piston rod (502) is movably mounted in the inner cavity of the second gas cylinder (501), a sliding block (503) is fixedly mounted on the outer end of the second piston rod (502), the top end of the sliding block (503) is fixedly connected to the inner bottom end of the clamping assembly (3), and the bottom of the outer end of the second gas cylinder (501) is fixedly connected to the outer end of the triggering assembly (4) through a ventilation pipe (504).

2. The fixing mechanism for a shelter fire extinguisher according to claim 1, characterized in that: The clamping assembly (3) comprises a sliding frame (301), a clamping frame (302), a rubber block (303) and a telescopic connecting plate (304); The sliding frame (301) is slidably mounted on the other side of the fixed frame (1); the clamping frame (302) is movably mounted on both sides of the bottom end of the fixed frame (1) and both sides of the sliding frame (301); the outer ends of the clamping frames (302) are connected via a telescopic connecting plate (304); and the rubber block (303) is arranged on the inner side of the clamping frame (302).

3. The fixing mechanism for a shelter fire extinguisher according to claim 1, characterized in that: The trigger assembly (4) comprises a trigger button (401), a first pneumatic cylinder (402), a first piston rod (403), a first connecting spring (404) and a linkage arm (405); The trigger block (401) is movably mounted in the middle of the inner cavity at the bottom end of the fixing frame (1); the first pneumatic cylinder (402) is arranged at the bottom end of the fixing frame (1) and is located below the outer side of the trigger block (401); the first piston rod (403) is movably mounted in the inner cavity of the first pneumatic cylinder (402); the first piston rod (403) is elastically connected to the inner wall of the first pneumatic cylinder (402) via a first connecting spring (404); and the linkage arm (405) is hinged between the top of the inner end of the first piston rod (403) and the bottom end of the trigger block (401).

4. The fixing mechanism for a shelter fire extinguisher according to claim 1, characterized in that: The other end of the ventilation pipe (504) is fixedly connected to the middle part of the outer end of the first pneumatic cylinder (402).

5. The fixing mechanism for a shelter fire extinguisher according to claim 1, characterized in that: A clamping assembly (6) located inside the second gas cylinder (501) is arranged at the bottom of the fixing frame (1), and the clamping assembly (6) comprises a first hydraulic cylinder (601), a driving piston rod (602), a linkage block (603) and a clamping tooth plate (604); The first hydraulic cylinder (601) is fixedly installed at the bottom of the fixed frame (1) and is located between the second gas cylinder (501) and the trigger block (401); the driving piston rod (602) is movably installed in the inner cavity of the first hydraulic cylinder (601); the outer end of the driving piston rod (602) passes through the first hydraulic cylinder (601); the latch plate (604) is movably installed inside the fixed frame (1) and is located outside the sliding block (503); the linkage block (603) is fixedly installed on the inner side of the latch plate (604); and both sides of the outer end of the driving piston rod (602) are slidably connected to the inner wall of the linkage block (603).

6. The fixing mechanism for a shelter fire extinguisher according to claim 5, characterized in that: The inner side of the latch plate (604) is meshed with the outer side of the sliding block (503).

7. The fixing mechanism for a shelter fire extinguisher according to claim 1, characterized in that: A pressing assembly (7) is provided on the inner side of the fixed frame (1) and is located above one side of the sliding frame (301). The pressing assembly (7) comprises a sliding rod (701), a pressing plate (702) and a return spring (703); The sliding rod (701) is fixedly mounted on the inner side of the fixing frame (1) and is located on one side of the sliding frame (301); the pressing plate (702) is slidably connected to the surface of the sliding rod (701); and the pressing plate (702) is elastically connected to the fixing frame (1) via a return spring (703).

8. The fixing mechanism for a shelter fire extinguisher according to claim 1, characterized in that: A transmission assembly (8) is arranged on the inner side of the fixing frame (1) and is located between the clamping frame (302) and the pressing plate (702), and the transmission assembly (8) comprises a first rack (801), a second rack (802) and a transmission gear (803); The first rack (801) is arranged on the outside of the pressing plate (702), the second rack (802) is arranged on the inner end of one side of the clamping frame (302), the transmission gear (803) is movably sleeved on the inner side of the fixing frame (1), and is located between the first rack (801) and the second rack (802), and the inner sides of the first rack (801) and the second rack (802) are both meshed with the surface of the transmission gear (803).

9. The fixing mechanism for a shelter fire extinguisher according to claim 1, characterized in that: A power assembly (9) is arranged on both sides of the top of the fixing frame (1), and the power assembly (9) comprises a second hydraulic cylinder (901), a hydraulic piston rod (902), a second connecting spring (903) and an oil pipeline (904); The second hydraulic cylinder (901) is fixedly mounted on both sides of the top of the fixed frame (1); the hydraulic piston rod (902) is movably mounted in the inner cavity of the second hydraulic cylinder (901); a piston frame (10) located above the hydraulic piston rod (902) is movably mounted on the top of the fixed frame (1); the bottom ends of both sides of the piston frame (10) are slidably connected to the inner cavity of the second hydraulic cylinder (901); the top end of the hydraulic piston rod (902) is elastically connected to the bottom end of the piston frame (10) via a second connecting spring (903); and the second hydraulic cylinder (901) is fixedly connected to the first hydraulic cylinder (601) via an oil pipeline (904).

10. The fixing mechanism for a shelter fire extinguisher according to claim 1, characterized in that: The top end of the fixing frame (1) is threadedly sleeved with a threaded rod (11) located below the inner side of the piston frame (10), and the top end of the threaded rod (11) is movably sleeved with the bottom end of the piston frame (10).

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