A forcible entry device for fire fighting

Abstract

This invention relates to the field of fire rescue technology, specifically to a fire-specific demolition device, comprising a hydraulic shear housing and a third motor. A handrail is fixedly connected to the outer surface of the hydraulic shear housing. A first reinforcing plate is fixedly connected to the left side of the top of the hydraulic shear housing, and a second reinforcing plate is fixedly connected to the right side of the top of the hydraulic shear housing. A rotating plate is rotatably connected to the top of the first reinforcing plate, and a second rotating plate is rotatably connected to the top of the second reinforcing plate. A transparent plate is fixedly connected to the top of the second rotating plate. By setting an adjustment structure, a rotating shaft, and transparent plates one and two, the transparent plates one and two can quickly close and overlap, forming a closed dynamic protective barrier. This effectively blocks flying debris during demolition operations, while the transparent material does not obstruct the operator's view. This perfectly solves the shortcomings of traditional demolition devices, such as lack of closed protection, flying debris, and poor flexibility, significantly improving the safety and operational stability of fire rescue operations.

Description

Technical Field

[0001] This invention relates to the field of fire rescue technology, specifically to a demolition device for firefighting. Background Technology

[0002] In the fields of fire rescue and disaster emergency response, breaching devices are key equipment for opening up life-saving passages. Existing breaching tools are mainly divided into several categories, including manual, hydraulic, internal combustion powered, and electric driven, and are widely used in scenarios such as vehicle demolition in traffic accidents, earthquake rubble clearing, and building door and window removal. Traditional fire-fighting breaching devices typically include a power source, transmission mechanism, and actuator. The actuator is often designed as a spreader, shear blade, hydraulic breaker, or cutting saw. To adapt to complex rescue environments, modern breaching devices are increasingly trending towards multi-functional integration and portability, striving to provide sufficient breaching force within limited working space while ensuring the reliability and durability of the equipment. In actual use, firefighters first select the appropriate demolition end or working mode based on the type of obstacle at the scene. After starting the power source, energy is transmitted to the execution head through the hydraulic oil circuit or mechanical transmission device. The execution head performs linear reciprocating motion or rotational motion under the drive of the electronic or hydraulic control system. For example, when performing expansion operations, the hydraulic cylinder pushes the expansion arm to open, applying huge compressive force to the obstacle; when performing cutting operations, the high-speed rotating saw blade or reciprocating blade contacts the obstacle and removes the material through friction or shearing force. The entire operation process is often accompanied by high load, high impact, and harsh working conditions such as high temperature and dust. However, existing demolition devices typically lack enclosed protective designs, making it difficult to dynamically contain debris while ensuring a clear field of vision. This results in debris easily flying during the demolition process, thus reducing the flexibility of the demolition device. Summary of the Invention

[0003] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a fire-fighting demolition device that can effectively solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a fire-fighting demolition device, comprising a hydraulic clamp housing and a third motor. A handrail is fixedly connected to the outer surface of the hydraulic clamp housing. A first reinforcing plate is fixedly connected to the left side of the top of the hydraulic clamp housing, and a second reinforcing plate is fixedly connected to the right side of the top of the hydraulic clamp housing. A rotating plate is rotatably connected to the top of the first reinforcing plate, and a second rotating plate is rotatably connected to the top of the second reinforcing plate. A transparent plate is fixedly connected to the top of the second rotating plate, and a transparent plate is fixedly connected to the top of the first rotating plate. A support plate is fixedly connected to the top of the hydraulic clamp housing, and a rotating shaft is rotatably connected inside the support plate. An actuator is provided inside the hydraulic clamp housing. A cleaning structure is provided outside the rotating shaft, and an adjustment structure is provided outside the rotating plate. A drive structure is provided on one side of the support plate. A threaded rod is connected to the output shaft of the third motor, and a lifting structure is provided outside the threaded rod.

[0005] Furthermore, the first transparent plate and the second transparent plate overlap, and the adjustment structure includes a first bevel gear, a second bevel gear, a third bevel gear and a fourth bevel gear. The first bevel gear is fixedly connected to the top of the first rotating plate, and the second bevel gear is fixedly connected to the top of the second rotating plate.

[0006] Furthermore, the third bevel gear is fixedly connected to the outer surface of the right end of the rotating shaft, the fourth bevel gear is fixedly connected to the outer surface of the left end of the rotating shaft, the second bevel gear meshes with the third bevel gear, and the first bevel gear meshes with the fourth bevel gear.

[0007] Furthermore, the cleaning structure includes a connecting plate and a mounting plate. The connecting plate is fixedly connected to the outside of the rotating shaft, and a baffle is fixedly connected inside the connecting plate. A groove is formed inside the baffle, and a cleaning brush is connected to the bottom right side of the mounting plate.

[0008] Furthermore, the cleaning brush slides within the groove, the mounting plate is equipped with bolts, the mounting plate is connected to the cleaning brush via bolts, the threaded rod is rotatably connected within the baffle, and the third motor is fixedly connected to the outside of the connecting plate.

[0009] Furthermore, the lifting structure includes a toothed plate and a sleeve plate. The toothed plate is fixedly connected to the bottom left side of the mounting plate, the sleeve plate is threadedly connected to the outside of the threaded rod, and a first motor is fixedly connected to the outside of the sleeve plate.

[0010] Furthermore, the output shaft of the first motor is fixedly connected to a spur gear, which meshes with a gear plate. The gear plate slides inside the sleeve plate, and the spur gear is rotatably connected above the sleeve plate.

[0011] Furthermore, the drive structure includes a second motor and an anti-slip belt. The second motor is fixedly connected to the outside of the support plate, and the output shaft of the second motor is connected to a second rotating shaft. The second rotating shaft is rotatably connected inside the support plate, and the second rotating shaft is connected to the first rotating shaft through the anti-slip belt.

[0012] The technical solution provided by this invention has the following advantages compared with the known prior art: 1. By setting up an adjustment structure, a rotating shaft, a transparent plate, and a transparent plate, the third and fourth bevel gears at both ends of the rotating shaft mesh with the second and first bevel gears respectively. Since the third and first bevel gears are in a relative position, rotating plates one and two can rotate synchronously in opposite directions as the rotating shaft rotates. Transparent plates one and two will then rotate relative to each other and come into contact. Utilizing the opposing third and fourth bevel gears at both ends of the rotating shaft, a single power source drives the two rotating plates to rotate synchronously in opposite directions, allowing transparent plates one and two to quickly close and overlap, forming a closed dynamic protective barrier. This effectively blocks flying debris during demolition operations, while the transparent material does not obstruct the operator's view. This perfectly solves the shortcomings of traditional demolition devices, such as lack of closed protection, flying debris, and poor flexibility, significantly improving the safety and operational stability of fire rescue operations.

[0013] 2. By setting up a cleaning structure, a threaded rod, and a third motor, the connecting plate will flip under the action of the first rotating shaft. After the baffle flips with the first rotating shaft and the connecting plate, it will overlap above the first and second transparent plates. The cleaning brush will also overlap the surface of the first and second transparent plates with the action of the lifting structure. The third motor and the threaded rod can move back and forth on the surface of the first and second transparent plates. When the first rotating shaft rotates and closes the transparent plate, the connecting plate flips and the baffle overlaps above the first and second transparent plates to form a stable support. At this time, the cleaning brush will accurately descend under the action of the lifting structure and overlap the surface of the transparent plate. By starting the third motor to drive the threaded rod to rotate, the cleaning brush can be driven to move back and forth along the groove on the baffle on the surface of the transparent plate. This allows for the quick scraping of dust and debris attached to the transparent plate without opening the protective cover, maintaining a good line of sight and improving the efficiency of continuous operation.

[0014] 3. By setting up a lifting structure, the first motor drives the spur gear to rotate. Since the spur gear meshes with the toothed plate, the toothed plate moves within the sleeve plate, and the cleaning brush moves downward through the toothed plate, so that the cleaning brush overlaps the surfaces of transparent plate one and transparent plate two. This process causes the mounting plate and the cleaning brush at the bottom to slowly descend until the cleaning brush can perfectly overlap and stick to the surfaces of transparent plate one and transparent plate two. This gear and rack lifting mechanism not only ensures precise control of the downward stroke of the cleaning brush and avoids rigid collision damage to the transparent plate, but also lays a stable force foundation for the subsequent reciprocating scraping action, improving the reliability and durability of the overall cleaning operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the hydraulic clamp housing of the present invention; Figure 3 This is a three-dimensional structural diagram of the transparent plate of the present invention; Figure 4 This is a three-dimensional structural diagram of the adjustment structure of the present invention; Figure 5 This is a three-dimensional structural diagram of the driving structure of the present invention; Figure 6 This is a three-dimensional structural diagram of the cleaning structure of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle.

[0017] The labels in the diagram represent: 1. Hydraulic clamp housing; 2. Handrail frame; 3. Support plate; 4. First reinforcing plate; 5. Second reinforcing plate; 6. Adjustment structure; 601. First bevel gear; 602. Second bevel gear; 603. Third bevel gear; 604. Fourth bevel gear; 7. Cleaning structure; 701. Connecting plate; 702. Baffle; 703. Groove; 704. Cleaning brush; 705. Mounting plate; 706. Bolt; 8. Lifting structure; 801. Tooth plate; 802. Sleeve plate; 803. Spur gear; 804. First motor; 9. Rotating plate one; 10. Rotating plate two; 11. Transparent plate one; 12. Transparent plate two; 13. Execution clamp; 14. Rotating shaft one; 15. Drive structure; 1501. Second motor; 1502. Rotating shaft two; 1503. Anti-slip strip; 16. Threaded rod; 17. Third motor. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] The present invention will be further described below with reference to embodiments.

[0020] Example 1: Reference Figure 1-7 This is the first embodiment of the present invention. A fire-fighting demolition device includes a hydraulic clamp housing 1 and a third motor 17. A handrail 2 is fixedly connected to the outer surface of the hydraulic clamp housing 1. A first reinforcing plate 4 is fixedly connected to the left side of the top of the hydraulic clamp housing 1. A second reinforcing plate 5 is fixedly connected to the right side of the top of the hydraulic clamp housing 1. A rotating plate 9 is rotatably connected to the top of the first reinforcing plate 4. A rotating plate 10 is rotatably connected to the top of the second reinforcing plate 5. A transparent plate 12 is fixedly connected to the top of the rotating plate 10. A transparent plate 11 is fixedly connected to the top of the rotating plate 9. A support plate 3 is fixedly connected to the top of the hydraulic clamp housing 1. A rotating shaft 14 is rotatably connected inside the support plate 3. An actuator 13 is provided inside the hydraulic clamp housing 1. A cleaning structure 7 is provided outside the rotating shaft 14. An adjustment structure 6 is provided outside the rotating plate 9. A drive structure 15 is provided on one side of the support plate 3. A threaded rod 16 is connected to the output shaft of the third motor 17. A lifting structure 8 is provided outside the threaded rod 16.

[0021] Transparent plate 11 overlaps with transparent plate 2 12. The adjustment structure 6 includes a first bevel gear 601, a second bevel gear 602, a third bevel gear 603, and a fourth bevel gear 604. The first bevel gear 601 is fixedly connected to the top of rotating plate 1 9, the second bevel gear 602 is fixedly connected to the top of rotating plate 2 10, the third bevel gear 603 is fixedly connected to the outer surface of the right end of rotating shaft 14, and the fourth bevel gear 604 is fixedly connected to the outer surface of the left end of rotating shaft 14. The second bevel gear 602 meshes with the third bevel gear 603, and the first bevel gear 601 meshes with the fourth bevel gear 604.

[0022] By setting up a first reinforcing plate 4, a second reinforcing plate 5, and an adjustment structure 6 composed of multiple bevel gears, a high-rigidity and precise transmission basic protective frame is constructed for the entire demolition device. Under the harsh working conditions of demolition accompanied by high impact, the first reinforcing plate 4 and the second reinforcing plate 5 can effectively improve the structural strength of the top of the equipment and prevent the first rotating plate 9 and the second rotating plate 10 from deforming or shifting when subjected to force. At the same time, by using the third bevel gear 603 and the fourth bevel gear 604 set opposite to each other at both ends of the rotating shaft 14, the linkage effect of driving the two rotating plates to rotate synchronously in opposite directions by a single power source is realized. This not only simplifies the mechanical structure of the equipment and reduces the use of redundant motors, but also ensures the high consistency of the action of the first transparent plate 11 and the second transparent plate 12 when closed, improving the overall stability and mechanical transmission reliability of the device in complex environments.

[0023] Example 2: Reference Figure 3-6 This is the second embodiment of the present invention, which differs from the first embodiment in that: the cleaning structure 7 includes a connecting plate 701 and a mounting plate 705. The connecting plate 701 is fixedly connected to the outside of the rotating shaft 14. A baffle 702 is fixedly connected inside the connecting plate 701. A groove 703 is provided inside the baffle 702. A cleaning brush 704 is connected to the bottom right side of the mounting plate 705. The cleaning brush 704 slides in the groove 703. A bolt 706 is provided inside the mounting plate 705. The mounting plate 705 is connected to the cleaning brush 704 through the bolt 706. A threaded rod 16 is rotatably connected inside the baffle 702. A third motor 17 is fixedly connected to the outside of the connecting plate 701.

[0024] By setting up the cleaning structure 7 and using the installation method of bolt 706 connection, the device is provided with a cleaning carrier with self-adaptive support and convenient maintenance characteristics. When the connecting plate 701 is rotated with the rotating shaft 14, the baffle 702 can accurately overlap the closed transparent plate. The groove 703 opened inside it directly provides a closed sliding track for the reciprocating movement of the subsequent cleaning components, preventing lateral shaking and derailment during operation. In addition, the mounting plate 705 is connected to the cleaning brush 704 by bolt 706. This detachable design allows firefighters to quickly replace the severely worn cleaning brush 704 by hand in harsh rescue scenes without the need for complicated tools, which greatly reduces the difficulty of later maintenance and operation and maintenance costs of the equipment and improves the continuous combat support capability of the equipment.

[0025] The remaining structure is the same as that in Example 1.

[0026] Example 3: Reference Figure 5-7 This is the third embodiment of the present invention, which differs from the second embodiment in that: The lifting structure 8 includes a toothed plate 801 and a sleeve plate 802. The toothed plate 801 is fixedly connected to the bottom left side of the mounting plate 705. The sleeve plate 802 is threadedly connected to the outside of the threaded rod 16. A first motor 804 is fixedly connected to the outside of the sleeve plate 802. A spur gear 803 is fixedly connected to the output shaft of the first motor 804. The spur gear 803 meshes with the toothed plate 801. The toothed plate 801 slides inside the sleeve plate 802. The spur gear 803 is rotatably connected above the sleeve plate 802. The drive structure 15 includes a second motor 1501 and an anti-slip belt 1503. The second motor 1501 is fixedly connected to the support plate 3. In addition, the output shaft of the second motor 1501 is connected to the second rotating shaft 1502, which is rotatably connected inside the support plate 3. The second rotating shaft 1502 is connected to the first rotating shaft 14 through the anti-slip belt 1503. The inner surface of the anti-slip belt 1503 is provided with evenly distributed toothed strips, and the second rotating shaft 1502 is also machined with tooth grooves that perfectly match the teeth of the anti-slip belt 1503. During operation, the teeth and tooth grooves of the anti-slip belt 1503 mesh with each other, and the power is transmitted through the meshing of the teeth, rather than relying on the friction between the belt and the pulley. Since the anti-slip belt 1503 is existing technology, it will not be described in detail.

[0027] By setting up a lifting structure 8 consisting of a toothed plate 801, a sleeve plate 802, a spur gear 803, and a first motor 804, and cooperating with a second motor 1501 driven by an anti-slip belt 1503, a precise downward pressing system with buffer protection and flexible transmission characteristics is formed. During the process of the cleaning brush 704 moving downward to contact the transparent plate, the first motor 804 can provide a smooth linear downward force through the meshing transmission between the spur gear 803 and the toothed plate 801, avoiding the cleaning brush 704 rigidly hitting the transparent plate and causing it to break. At the same time, the drive structure 15 uses an anti-slip belt 1503 to connect the second rotating shaft 1502 and the first rotating shaft 14. This flexible transmission method can generate a certain amount of slippage buffer when encountering debris jamming or overload, effectively preventing motor burnout or internal gear breakage, and further extending the service life of the device in high-temperature rescue environments with dense dust and sudden load changes.

[0028] The remaining structures are the same as those in Examples 1 and 2.

[0029] Working principle of the invention: When the demolition device is in use, the actuator 13 will contact the demolition area, and then the second motor 1501 will drive the second shaft 1502 to rotate. Since the second shaft 1502 is connected to the first shaft 14 through the anti-slip strip 1503, the first shaft 14 will rotate within the support plate 3. The third bevel gear 603 and the fourth bevel gear 604 at both ends of the rotating shaft 14 mesh with the second bevel gear 602 and the first bevel gear 601 respectively, and the third bevel gear 603 and the first bevel gear 601 are in a relative state, so that the rotating plate 19 and the rotating plate 20 can achieve synchronous reverse rotation with the rotation of the rotating shaft 14. The transparent plate 11 and the transparent plate 212 will rotate relative to each other, and the transparent plate 11 and the transparent plate 212 will fit together. The connecting plate 701 is flipped by the action of the first rotating shaft 14. After the baffle 702 is flipped along with the first rotating shaft 14 and the connecting plate 701, it will overlap the top of the first transparent plate 11 and the second transparent plate 12. Then, the first motor 804 drives the spur gear 803 to rotate. Since the spur gear 803 meshes with the toothed plate 801, the toothed plate 801 will move within the sleeve plate 802. The cleaning brush 704 will move downward through the toothed plate 801, so that the cleaning brush 704 will overlap the surface of the first transparent plate 11 and the second transparent plate 12. Subsequently, the third motor 17 drives the threaded rod 16 to rotate, and the sleeve plate 802 will drive the cleaning brush 704 to move back and forth within the groove 703, which facilitates cleaning the surface of the first transparent plate 11 and the second transparent plate 12.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fire-fighting demolition device, comprising a hydraulic shear housing (1) and a third motor (17), characterized in that, A handrail (2) is fixedly connected to the outer surface of the hydraulic clamp housing (1). A first reinforcing plate (4) is fixedly connected to the left side of the top of the hydraulic clamp housing (1). A second reinforcing plate (5) is fixedly connected to the right side of the top of the hydraulic clamp housing (1). A rotating plate (9) is rotatably connected to the top of the first reinforcing plate (4). A rotating plate (10) is rotatably connected to the top of the second reinforcing plate (5). A transparent plate (12) is fixedly connected to the top of the rotating plate (10). A transparent plate (1) is fixedly connected to the top of the rotating plate (9). (11) A support plate (3) is fixedly connected to the top of the hydraulic clamp housing (1). A rotating shaft (14) is rotatably connected inside the support plate (3). An execution clamp (13) is provided inside the hydraulic clamp housing (1). A cleaning structure (7) is provided outside the rotating shaft (14). An adjustment structure (6) is provided outside the rotating plate (9). A drive structure (15) is provided on one side of the support plate (3). A threaded rod (16) is connected to the output shaft of the third motor (17). A lifting structure (8) is provided outside the threaded rod (16).

2. The fire-fighting demolition device according to claim 1, characterized in that, The first transparent plate (11) overlaps with the second transparent plate (12). The adjustment structure (6) includes a first bevel gear (601), a second bevel gear (602), a third bevel gear (603) and a fourth bevel gear (604). The first bevel gear (601) is fixedly connected to the top of the first rotating plate (9), and the second bevel gear (602) is fixedly connected to the top of the second rotating plate (10).

3. The fire-fighting demolition device according to claim 2, characterized in that, The third bevel gear (603) is fixedly connected to the outer surface of the right end of the rotating shaft (14), and the fourth bevel gear (604) is fixedly connected to the outer surface of the left end of the rotating shaft (14). The second bevel gear (602) meshes with the third bevel gear (603), and the first bevel gear (601) meshes with the fourth bevel gear (604).

4. A fire-fighting demolition device according to claim 1, characterized in that, The cleaning structure (7) includes a connecting plate (701) and a mounting plate (705). The connecting plate (701) is fixedly connected to the outside of the rotating shaft (14). A baffle (702) is fixedly connected inside the connecting plate (701). A groove (703) is provided inside the baffle (702). A cleaning brush (704) is connected to the bottom right side of the mounting plate (705).

5. A fire-fighting demolition device according to claim 4, characterized in that, The cleaning brush (704) slides in the groove (703), the mounting plate (705) is provided with bolts (706), the mounting plate (705) is connected to the cleaning brush (704) by bolts (706), the threaded rod (16) is rotatably connected in the baffle (702), and the third motor (17) is fixedly connected to the outside of the connecting plate (701).

6. A fire-fighting demolition device according to claim 4, characterized in that, The lifting structure (8) includes a toothed plate (801) and a sleeve plate (802). The toothed plate (801) is fixedly connected to the bottom of the left side of the mounting plate (705). The sleeve plate (802) is threadedly connected to the outside of the threaded rod (16). A first motor (804) is fixedly connected to the outside of the sleeve plate (802).

7. A fire-fighting demolition device according to claim 6, characterized in that, The output shaft of the first motor (804) is fixedly connected to a spur gear (803), which meshes with a toothed plate (801). The toothed plate (801) slides inside a sleeve plate (802), and the spur gear (803) is rotatably connected above the sleeve plate (802).

8. A fire-fighting demolition device according to claim 1, characterized in that, The drive structure (15) includes a second motor (1501) and an anti-slip belt (1503). The second motor (1501) is fixedly connected to the outside of the support plate (3). The output shaft of the second motor (1501) is connected to a second rotating shaft (1502). The second rotating shaft (1502) is rotatably connected inside the support plate (3). The second rotating shaft (1502) is connected to the first rotating shaft (14) through the anti-slip belt (1503).

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