Multifunctional fire-fighting wrench

By integrating torque wrench, adjustable wrench and belt wrench into a multi-functional fire wrench, the problem of the single function of traditional fire wrenches is solved, and the rescue effect of fire-fighting tools is achieved by making them efficient, safe and portable.

CN223981749UActive Publication Date: 2026-03-10茂名市消防救援支队
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Traditional fire wrenches have limited functionality and cannot meet the needs of complex and ever-changing fire scenes, increasing the burden on firefighters and affecting rescue speed.

Method used

Design a multi-functional fire wrench that integrates the functions of a torque wrench, adjustable wrench, and belt wrench. It includes a torque adjustment device, a detachable socket, a movable claw, anti-slip texture, and a nylon belt, improving the tool's versatility and portability.

Benefits of technology

It improves the versatility and portability of tools, reduces the inconvenience for firefighters carrying multiple tools, and enhances rescue efficiency, operational stability, and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multifunctional fire-fighting wrench. The multifunctional fire-fighting wrench comprises a main body handle, a torque wrench assembly, a movable wrench assembly and a belt wrench assembly, the torque wrench assembly comprises a torque adjusting device, a driving head and a sleeve, the torque adjusting device is integrated on the main body handle, the driving head is located on the side face of one end of the main body handle and connected with the torque adjusting device, and the sleeve is connected with the driving head; the movable wrench assembly comprises a connecting handle which is connected with one end of the main body handle and is provided with a slidable movable claw and a fixed claw, and the fixed claw and the movable claw are arranged on the connecting handle; the belt wrench assembly comprises a lock catch and a belt, one side of the lock catch is hinged to the outer side of the fixing claw, and the other side, away from the fixing claw, of the lock catch is connected with one end of the belt. Therefore, the multifunctional fire-fighting wrench can meet the use requirements of various fire-fighting equipment, the universality and portability of tools are improved, and the inconvenience that firefighters carry various tools is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting equipment technical field, especially in kind of multi -functional fire fighting wrench. BACKGROUND

[0002] Fire is one of the major disasters that human society faces, and seriously threatens people's life and property safety. In the process of fire fighting, firefighters need to use various tools for breaking and rescue operations, and the performance of the fire wrench, as one of the essential tools for firefighters, directly affects the rescue efficiency.

[0003] The traditional fire wrench has single function, usually only has the basic function of opening and closing fire hydrant, valve, etc. It is difficult to meet the needs of complex and changeable fire scene, and firefighters need to carry multiple wrenches, which not only increases the load, but also affects the rescue speed. UTILITY MODEL CONTENT

[0004] The utility model aims at at least solving one of the technical problems existing in the prior art. For this purpose, the utility model provides a multifunctional fire wrench, which integrates torque wrench, movable wrench and belt wrench, improves the versatility and portability of the tool, reduces the inconvenience of firefighters carrying multiple tools, can meet the operation needs in fire rescue, and is suitable for opening and closing fire hydrant and side cover, replacing fire truck tire, disassembling oil grade and diesel oil grade, and other fire fighting and rescue and equipment maintenance tasks.

[0005] The utility model solves the technical problems by adopting the technical scheme of:

[0006] A multifunctional fire wrench, comprising

[0007] A main handle;

[0008] A torque wrench assembly, comprising a torque adjusting device, a driving head and a sleeve, the torque adjusting device is integrated on the main handle, the driving head is located on the side of one end of the main handle and the torque adjusting device, and the sleeve is connected with the driving head;

[0009] A movable wrench assembly, comprising a connecting handle connected with one end of the main handle, a slidable movable claw and a fixed claw are arranged on the connecting handle;

[0010] A belt wrench assembly, comprising a lock and a belt, one side of the lock is hinged to the outside of the fixed claw, and the other side of the lock away from the fixed claw is connected with one end of the belt.

[0011] The multifunctional fire-fighting wrench has the advantages that the multifunctional fire-fighting wrench integrates the functions of a torque wrench, a movable wrench and a belt wrench, can adapt to the use requirements of various fire-fighting equipment, improves the versatility and portability of the tool, reduces the inconvenience of a fire fighter in carrying various tools, and in emergency rescue, the fire fighter can use the torque wrench assembly to accurately open and close a fire hydrant, use the movable wrench assembly to quickly disassemble a pipeline joint, and use the belt wrench assembly to fix and rotate a fire hose joint.

[0012] According to some embodiments of the present application, the torque adjusting device comprises a torque adjusting sleeve and a transmission mechanism, the torque adjusting sleeve is arranged outside the main handle, and the transmission mechanism is arranged inside the main handle for connecting the torque adjusting sleeve and the driving head.

[0013] The torque adjusting sleeve and the transmission mechanism are arranged, so that the user can accurately adjust the torque, and the fire-fighting equipment is prevented from being damaged or the operation effect is affected due to too large or too small torque during operation.

[0014] According to some embodiments of the present application, the torque adjusting sleeve is arranged at one end of the main handle away from the driving head, and the movable wrench assembly is arranged at one end of the main handle close to the driving head.

[0015] The torque adjusting sleeve and the movable wrench assembly are arranged at two ends of the main handle respectively, so that the operation is more convenient, the interference between functions is avoided, and the convenience and efficiency of use are improved.

[0016] According to some embodiments of the present application, the torque adjusting device further comprises a digital display screen arranged on the upper side of the main handle.

[0017] The digital display screen can display the current torque value in real time, helps the user to more accurately control the torque, and prevents the equipment from being damaged or the operation from being failed due to improper torque.

[0018] According to some embodiments of the present application, the sleeve is designed to be detachable and is equipped with various specifications to adapt to nuts, bolts and fire-fighting equipment interfaces of different sizes.

[0019] The detachable design and the sleeve of various specifications make the wrench adapt to nuts, bolts and fire-fighting equipment interfaces of different sizes, enhance the versatility and applicability of the tool, and reduce the need to carry multiple tools.

[0020] According to some embodiments of the present invention, an adjusting screw is provided between the movable claw and the fixed claw of the movable wrench assembly.

[0021] The advantage is that the adjusting screw can precisely adjust the distance between the moving and fixed jaws, allowing the wrench to better adapt to workpieces of different sizes, thus improving operational flexibility and applicability.

[0022] According to some embodiments of this utility model, the opposing surfaces of the fixed claw and the movable claw are provided with anti-slip textures.

[0023] The benefits are that the anti-slip texture increases the friction between the fixed and movable claws and the workpiece, preventing slippage during operation and improving operational stability and safety.

[0024] According to some embodiments of the present invention, one side of the belt and the side of the fixing claw are both provided with anti-slip teeth.

[0025] The benefits are: the anti-slip teeth increase the friction between the belt and the workpiece and between the belt and the side of the fixed claw, preventing the belt from slipping during operation and improving the performance and safety of the belt wrench.

[0026] According to some embodiments of this utility model, the belt is made of nylon.

[0027] The advantages are: nylon material has high strength, wear resistance and corrosion resistance, can withstand greater tensile force and harsh working environment, and extends the service life of the belt.

[0028] According to some embodiments of the present invention, the surface of the main handle is covered with an anti-slip rubber layer.

[0029] The benefits are that the anti-slip rubber layer increases the friction of the handle, allowing the operator to hold the wrench firmly even in wet or oily environments, thus improving the safety and comfort of operation.

[0030] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1This is a schematic diagram of an embodiment of the present utility model;

[0033] Figure 2 for Figure 1 A schematic diagram of the installation of the main handle and sleeve;

[0034] Figure 3 for Figure 1 A schematic diagram illustrating the use of the belt wrench assembly.

[0035] Reference numerals: main handle 100, drive head 110, sleeve 120, connecting handle 130, movable claw 140, fixed claw 150, lock 160, belt 170, torque adjusting sleeve 180, digital display screen 190, adjusting screw 200, anti-slip rubber layer 210. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. 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 the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] The following is for reference.Figures 1-3 A multi-functional fire wrench is described in detail with reference to a specific embodiment. It is to be understood that the following description is merely illustrative and not intended to limit the scope of the invention.

[0041] like Figures 1-3 As shown, a multi-functional fire wrench includes a main handle, a torque wrench assembly, an adjustable wrench assembly, and a belt wrench assembly.

[0042] The torque wrench assembly includes a torque adjustment device, a drive head 110, and a socket 120. The torque adjustment device is integrated into the main handle 100 and consists of a torque adjustment sleeve 180 and a transmission mechanism. The torque adjustment sleeve 180 is located on the outside of the main handle 100, while the transmission mechanism is located inside the main handle 100 and connects the torque adjustment sleeve 180 and the drive head 110. The drive head 110 is located on the side of one end of the main handle 100, and the socket 120 is connected to the drive head 110. The socket 120 is detachable and equipped with various sizes to accommodate nuts, bolts, and fire equipment interfaces of different dimensions. The torque adjustment device also includes a digital display screen 190 located on the upper side of the main handle 100 for real-time display of torque values. In fire rescue operations, the operator can set the desired torque value by rotating the torque adjustment sleeve 180 and then place the socket 120 onto the target nut or bolt, applying force until the set torque value is reached. This design is particularly suitable for scenarios requiring precise torque operation, such as switching on and off fire hydrants and removing or installing fire truck tires, thus avoiding equipment damage or operational errors caused by improper torque.

[0043] like Figure 1 The adjustable wrench assembly includes a connecting handle 130, a movable jaw 140, and a fixed jaw 150. The connecting handle 130 is connected to one end of the main handle 100. The movable jaw 140 is slidably mounted on the connecting handle 130, and the fixed jaw 150 is fixedly connected to the connecting handle 130. An adjusting screw 200 is provided between the movable jaw 140 and the fixed jaw 150 for precise adjustment of the distance between them to accommodate workpieces of different sizes. The opposing surfaces of the fixed jaw 150 and the movable jaw 140 are provided with anti-slip textures (not shown in the figure, but can be toothed or striped) to increase friction with the workpiece. In fire rescue operations, operators can quickly adjust the distance between the movable jaw 140 and the fixed jaw 150 using the adjusting screw 200, clamp the target workpiece, and then apply force through the main handle 100 to complete the disassembly or installation task. This assembly is particularly suitable for quickly disassembling or installing fire hose connectors, pipes, valves, and other equipment. The anti-slip texture design ensures operational stability and safety.

[0044] like Figure 3As shown, the belt wrench assembly includes a locking buckle 160 and a belt 170. One side of the locking buckle 160 is hinged to the outer side of the fixing claw 150, and the other side is connected to one end of the belt 170. The belt 170 is made of nylon, which has high strength, wear resistance, and corrosion resistance. One side of the belt 170 is provided with anti-slip teeth (not shown in the figure) to increase the friction between it and the workpiece. The fixing claw 150 is also provided with anti-slip teeth (not shown in the figure) on its side to increase the friction between it and the belt 170. In fire rescue, the operator can wrap the belt 170 around a cylindrical workpiece (such as a pipe, valve, etc.) and secure it with the locking buckle 160. The anti-slip tooth design ensures that the belt 170 will not slip during operation. The operator can complete the rotation or fixing task by applying force through the main handle 100. This assembly is particularly suitable for quick fixing and rotation operations in wet, slippery, or oily environments, such as the installation and removal of fire hose couplings.

[0045] The surface of the main handle 100 is covered with a non-slip rubber layer 210 to increase friction and ensure that the operator can firmly grip the wrench even in wet or oily environments. Whether using the torque wrench assembly, adjustable wrench assembly, or belt wrench assembly, the operator can apply force firmly through the main handle 100. The non-slip rubber layer 210 design improves the safety and comfort of operation. The modular design of the main handle 100 integrates the three functional components into one unit, reducing tool switching time, significantly improving rescue efficiency, and enhancing the portability and versatility of the tool.

[0046] This multi-functional fire wrench integrates the functions of a torque wrench, an adjustable wrench, and a belt wrench, meeting various operational needs in fire rescue. Its modular design makes the tool more portable, reducing the burden on firefighters who would otherwise have to carry multiple tools. In emergency rescues, firefighters can use the torque wrench assembly to precisely open and close fire hydrants, the adjustable wrench assembly to quickly disassemble pipe joints, and the belt wrench assembly to secure and rotate fire hose connections. The anti-slip texture, anti-slip teeth, and anti-slip rubber layer 210 design ensure operational stability and safety, while the detachable socket 120, adjustable movable jaw 140, and belt 170 length design enhance the tool's versatility and applicability. Through these specific implementations, this multi-functional fire wrench provides firefighters with an efficient, safe, and portable tool solution, significantly improving rescue efficiency and operational reliability.

[0047] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A multi-purpose fire fighting wrench characterized in that, The utility model relates to a multifunctional fire-fighting wrench, which comprises the following parts: a main handle (100); a torque wrench assembly, which comprises a torque adjusting device, a driving head (110) and a sleeve (120), the torque adjusting device is integrated on the main handle (100), the driving head (110) is located on one side of the main handle (100) and the torque adjusting device, and the sleeve (120) is connected with the driving head (110); a movable wrench assembly, which comprises a connecting handle (130) connected with one end of the main handle (100), a movable claw (140) and a fixed claw (150) are arranged on the connecting handle (130); a belt wrench assembly, which comprises a lock buckle (160) and a belt (170), one side of the lock buckle (160) is hinged to the outer side of the fixed claw (150), and the other side of the lock buckle (160) away from the fixed claw (150) is connected with one end of the belt (170).

2. The multi-functional fire-fighting wrench according to claim 1, wherein The torque adjusting device comprises a torque adjusting rotating sleeve (180) and a transmission mechanism, the torque adjusting rotating sleeve (180) is arranged on the outer side of the main handle (100), and the transmission mechanism is arranged in the main handle (100) and used for connecting the torque adjusting rotating sleeve (180) and the driving head (110).

3. The multi-functional fire-fighting wrench according to claim 2, wherein The torque adjusting rotating sleeve (180) is arranged on the end of the main handle (100) away from the driving head (110), and the movable wrench assembly is arranged on the end of the main handle (100) close to the driving head (110).

4. The multi-purpose fireman's wrench of claim 2 wherein, The torque adjusting device further comprises a digital display screen (190) arranged on the side surface of the upper part of the main handle (100).

5. The multi-purpose fireman's wrench of claim 1 wherein, The sleeve (120) is designed to be detachable and is provided with various specifications to adapt to nuts, bolts and fire-fighting equipment interfaces of different sizes.

6. The multi-purpose fireman's wrench of claim 1 wherein, An adjusting screw (200) is arranged between the movable claw (140) and the fixed claw (150) of the movable wrench assembly.

7. The multi-purpose fireman's wrench of claim 1 wherein, The opposite surfaces of the fixed claw (150) and the movable claw (140) are provided with anti-skid lines.

8. The multi-purpose fireman's wrench of claim 1 wherein, The outer side of the fixed claw (150) and one side of the belt (170) are provided with anti-skid teeth.

9. The multi-purpose fireman's wrench of claim 1 wherein, The belt (170) is made of nylon.

10. The multi-purpose fireman's wrench of claim 1 wherein, The surface of the main handle (100) is covered with an anti-skid rubber layer (210).