Multifunctional forcible entry tool

By designing multifunctional demolition tools and utilizing hydraulic push rods and detachable functional components, the problem of single function of traditional tools is solved, and efficient and convenient rescue operations are achieved.

CN223416604UActive Publication Date: 2025-10-10郑新权
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422624880.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2025-10-10
Estimated Expiration
2034-10-30

AI Technical Summary

Technical Problem

Traditional demolition tools have a single function, which requires firefighters to carry multiple tools, increasing their load and affecting their operational efficiency.

Method used

A multifunctional demolition tool is designed, which adopts a hydraulic push rod as the power source and combines detachable functional components such as shear jaws and clamping plates to achieve multiple demolition functions, including breaking doors, shearing and opening passages.

Benefits of technology

The hydraulic push rod provides great force, reduces physical exertion, improves rescue efficiency, integrates multiple functions, reduces the number of tools, and improves convenience of action.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223416604U_ABST
    Figure CN223416604U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of fire-fighting instruments, in particular to a multifunctional forcible entry tool which comprises a handle, a hydraulic push rod is arranged in the handle, a functional portion is arranged at the front end of the handle and comprises a seat body and a push block, a clamping plate is arranged on one side of the bottom of the seat body, and a scissor jaw is arranged on one side, away from the clamping plate, of the seat body. The door opener can be used as a door opener, when the door opener is used, the clamping plate is clamped at the position of a door slot, the hydraulic push rod is controlled by controlling the external liquid supply assembly to generate thrust, and then a door frame can be pushed through the push block to achieve the purpose of forcibly opening a door. The shearing jaw is arranged, the hydraulic push rod is controlled by controlling the external liquid supply assembly to generate pulling force, the positions such as a bolt and a door hinge can be sheared through the shearing jaw, and the purpose of breaking a lock or disassembling a door is achieved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting equipment, in particular to a multifunctional demolition tool. Background Art

[0002] Firefighting demolition tools are essential equipment for firefighters. During rescue operations, they can be used to open doors and windows, create fire escape routes, and quickly cut, shear, and break through obstacles like security window railings and collapsed building rebar. These tools facilitate the entry of rescue supplies and the rescue and evacuation of personnel from hazardous locations.

[0003] Traditional rescue tools often have only a single function and are not adequate for complex rescue environments. Therefore, firefighters often need to carry a variety of different rescue tools. Carrying too many tools and the weight of the tools can cause significant inconvenience to firefighters. Therefore, there is a need for a multi-functional rescue tool. Utility Model Content

[0004] The technical problem to be solved by the present invention is: to address the deficiencies of the existing technology and to propose a multifunctional demolition tool. The technical solution provided by the present invention is as follows:

[0005] A multifunctional demolition tool, comprising a handle, a hydraulic push rod provided inside the handle, a functional portion provided at the front end of the handle, a piston cavity provided inside the hydraulic push rod and a piston rod sliding in the piston cavity;

[0006] The functional part includes a seat body and a push block, the seat body is fixedly connected to the handle, and the push block is fixedly connected to the end of the piston rod; the seat body is provided with a groove for accommodating the push block;

[0007] A clamping plate is provided on one side of the bottom of the base body, and a shearing jaw is provided on the side of the base body away from the clamping plate.

[0008] As an improvement, the rear end of the handle is provided with a liquid supply connector for supplying liquid to the hydraulic push rod, and the two ends of the piston cavity are respectively provided with a liquid inlet and a liquid return port, and the liquid return port is provided with a conduit connected to the liquid supply connector.

[0009] As an improvement, a first shearing portion and a second shearing portion are provided at the mouth of the shears, and the first shearing portion and the second shearing portion are respectively provided on the seat body and the push block.

[0010] As an improvement, the seat body and the push block are respectively provided with a first card slot and a second card slot; the first shearing portion is detachably connected to the seat body via the first card slot, and the second shearing portion is detachably connected to the push block via the second card slot.

[0011] As an improvement, strong magnets for attracting the first shearing portion or the second shearing portion are provided inside the first card slot and the second card slot respectively.

[0012] As an improvement, the handle surface is provided with anti-slip grooves.

[0013] The advantages of this utility model are:

[0014] 1. This utility model uses a hydraulic push rod as a power source, which can effectively save the physical energy consumption of firefighters during the demolition process. At the same time, the hydraulic push rod has greater power, can provide greater demolition force, and improve rescue efficiency.

[0015] 2. The utility model can be used as a door breaker. When in use, the card plate is clamped at the door gap. At the same time, the external liquid supply component is controlled to control the hydraulic push rod to generate thrust, and the door frame can be pushed through the push block to achieve the purpose of forcibly breaking the door.

[0016] 3. This utility model features a shearing jaw. By controlling the external fluid supply assembly to control the hydraulic push rod to generate tension, the shearing jaw can be used to shear bolts, door hinges, and other locations, thereby breaking locks or removing doors. The shearing jaw can also shear obstacles such as rebar, facilitating the rapid clearing of fire escape routes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a multifunctional demolition tool in Example 1.

[0018] Figure 2 This is a structural diagram of the hydraulic push rod in a multifunctional demolition tool in Example 1.

[0019] Figure 3 This is a reference diagram of the usage status of a multifunctional demolition tool in Example 1.

[0020] Figure 4 This is a structural diagram of the shear jaws of a multifunctional rescue tool in Example 1.

[0021] Indicated in the figure:

[0022] 1 - Handle, 11 - Fluid supply connector, 2 - Hydraulic push rod, 21 - Piston chamber, 22 - Piston rod, 23 - Fluid inlet, 24 - Fluid return port, 3 - Functional unit, 31 - Base, 32 - Push block, 33 - Groove, 34 - Clamping plate, 35 - First slot, 36 - Second slot, 4 - Conduit, 5 - Cutting jaws, 51 - First cutting section, 52 - Second cutting section. 6 - Strong magnet. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0024] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the utility model is usually placed when in use. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0025] Furthermore, the use of terms such as "horizontal," "vertical," and "overhanging" does not necessarily imply that the component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0026] In the description of the embodiments of the present invention, “a plurality of” means at least 2.

[0027] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0028] Example 1

[0029] This embodiment discloses a multifunctional demolition tool, including a handle 1, a hydraulic push rod 2 is provided inside the handle 1, a functional part 3 is provided at the front end of the handle 1, a piston cavity 21 and a piston rod 22 sliding in the piston cavity 21 are provided in the hydraulic push rod 2.

[0030] A fluid supply connector 11 is located at the rear end of the handle 1, supplying fluid to the hydraulic push rod 2. A fluid inlet 23 and a fluid return port 24 are located at either end of the piston chamber 21. A conduit 4 is located at the fluid return port 24 and connects to the fluid supply connector 11. During use, the fluid supply connector 11 is connected to an external hydraulic device, such as a small hydraulic pump that can be placed in a shoulder bag. Hydraulic fluid is supplied to the fluid inlet 23 or fluid return port 24, controlling the thrust or pull of the hydraulic push rod 2.

[0031] Functional portion 3 comprises a base 31 and a push block 32. Base 31 is fixedly connected to handle 1, while push block 32 is fixedly connected to the end of piston rod 22. Base 31 is provided with a recess 33 for accommodating push block 32. A retaining plate 34 is located on one side of the base 1's bottom. To forcibly force the door, a crowbar is first used to open the door a crack. Then, retaining plate 34 is inserted into the crack, while push block 32 presses against the door frame. This controls the hydraulic push rod 21 to generate thrust, forcing the door open.

[0032] A shearing jaw 5 is provided on the side of the base body 1 away from the clamping plate 34 .

[0033] The cutting jaws 5 are provided with a first cutting portion 51 and a second cutting portion 52 . The first cutting portion 51 and the second cutting portion 52 are respectively provided on the base 31 and the push block 32 .

[0034] The base 31 and push block 32 are each provided with a first engaging slot 35 and a second engaging slot 36. The first shearing portion 51 is detachably connected to the base 31 via the first engaging slot 35, while the second shearing portion 52 is detachably connected to the push block 32 via the second engaging slot 36. In this embodiment, the first and second shearing portions 51, 52 are detachable, allowing for replacement of different shearing portions according to the intended use scenario, thereby achieving dimensional adaptability. Furthermore, in addition to the shearing portions, a clamping head or other similar features can also be provided, thus providing multiple functions.

[0035] A strong magnet 6 is provided inside the first card slot 35 and the second card slot 36 to attract the first shearing portion 51 or the second shearing portion 52. The strong magnet 6 can fix the first shearing portion 51 or the second shearing portion 52 to prevent it from falling off from the first card slot 35 or the second card slot 36 when not in use.

[0036] The surface of the handle 1 is provided with anti-skid patterns, which can facilitate holding and avoid slipping.

[0037] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multifunctional demolition tool, characterized in that: It comprises a handle, a hydraulic push rod is provided inside the handle, a functional part is provided at the front end of the handle, a piston cavity and a piston rod sliding in the piston cavity are provided inside the hydraulic push rod; The functional part includes a seat body and a push block, the seat body is fixedly connected to the handle, and the push block is fixedly connected to the end of the piston rod; the seat body is provided with a groove for accommodating the push block; A clamping plate is provided on one side of the bottom of the base body, and a shearing jaw is provided on the side of the base body away from the clamping plate.

2. A multifunctional rescue tool according to claim 1, characterized in that: The rear end of the handle is provided with a liquid supply connector for supplying liquid to the hydraulic push rod. The two ends of the piston cavity are respectively provided with a liquid inlet and a liquid return port. The liquid return port is provided with a conduit connected to the liquid supply connector.

3. A multifunctional rescue tool according to claim 1, characterized in that: The shearing jaws are provided with a first shearing portion and a second shearing portion, and the first shearing portion and the second shearing portion are respectively provided on the seat body and the push block.

4. A multifunctional rescue tool according to claim 3, characterized in that: The seat body and the push block are respectively provided with a first card slot and a second card slot; the first shearing portion is detachably connected to the seat body via the first card slot, and the second shearing portion is detachably connected to the push block via the second card slot.

5. A multifunctional rescue tool according to claim 4, characterized in that: Strong magnets for attracting the first shearing portion or the second shearing portion are provided inside the first and second card slots.

6. A multifunctional rescue tool according to claim 1, characterized in that: The surface of the handle is provided with anti-slip patterns.