Long-handled hook and miniature fire fighting truck with long-handled hook

Abstract

The utility model discloses a long-handled hook and a miniature fire fighting truck with the long-handled hook, relates to the field of miniature fire fighting trucks, and adopts the technical scheme that the long-handled hook comprises an outer pipe, an inner pipe sliding along the inner part of the outer pipe, and a bent hook fixed at the head part of the inner pipe, the linear movement of the outer pipe relative to the inner pipe is maintained through the guide locking assembly in the normal state, when the inner pipe extends out by the maximum length, the inner pipe and the outer pipe are locked, and the effect is that length fixing operation does not need to be carried out, time is saved, and fire can be better coped with.

Description

Technical Field

[0001] The utility model relates to the field of miniature fire trucks, and more particularly to a flexible hook and a miniature fire truck with the flexible hook. Background Art

[0002] Miniature fire trucks, including fire tricycles, are small, convenient vehicles designed specifically for firefighting. They offer excellent maneuverability, enabling them to navigate narrow streets, alleys, and complex terrain for rapid response to fire scenes. Despite their small size, they are fully equipped, typically with firefighting equipment such as fire extinguishers, fire hoses, water cannons, and demolition tools. They are easy to operate and require no extensive training, lowering the barrier to entry.

[0003] When a miniature fire truck encounters an electric vehicle on fire, it is generally necessary to quickly tow the electric vehicle away using a hook to isolate the fire source. However, the existing hook needs to be adjusted in length first, and the hook part of the hook needs to be hooked on the electric vehicle. Then, the length of the hook needs to be fixed before the electric vehicle can be towed. This is time-consuming and difficult to deal with fires effectively.

[0004] Therefore, in order to solve the above technical problems, the present application proposes a flexible hook and a miniature fire truck having the flexible hook. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a flexible hook and a miniature fire truck having the flexible hook.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flexible hook and a miniature fire truck with the flexible hook, comprising an outer tube, an inner tube sliding along the inside of the outer tube, and a curved hook fixed to the head of the inner tube, wherein the outer tube and the inner tube are both installed with mutually cooperating guide locking components, and the guide locking components maintain the linear movement of the outer tube relative to the inner tube under normal conditions, and lock the inner tube and the outer tube when the inner tube extends to the maximum length.

[0007] Preferably, the guide locking assembly includes a guide sleeve fixed on the inner wall of the outer tube, and a guide sleeve fixed on the outer wall of the inner tube. The guide sleeve can move linearly along the guide sleeve. The head of the guide sleeve is fixedly connected to a frame on which a stop spring is installed. The top of the guide sleeve is fixedly connected to an arrow. A notch is provided at the side end of the arrow. The stop spring has two ends. When the arrow moves upward and contacts the end, the stop spring will be deformed and its end will enter the notch of the arrow.

[0008] Preferably, a release switch connected to the end of the stop spring is rotatably connected to the outer side wall of the frame, and the end of the stop spring can be driven to disengage from the notch on the arrow by rotating the release switch.

[0009] Preferably, the bottoms of the outer tube and the inner tube are both provided with plugs, a buffer pad is installed on the plug of the outer tube, and a polytetrafluoroethylene sleeve is installed on the outer wall of the inner tube near the bottom end. The polytetrafluoroethylene sleeve is fixedly supported by the plug of the inner tube, and the polytetrafluoroethylene sleeve is used to maintain the coaxiality of the inner tube inside the outer tube to avoid deviation.

[0010] Preferably, the hook is made of a high-temperature resistant alloy steel material, which has excellent high-temperature resistance and can maintain structural strength and stability in a high-temperature environment.

[0011] Preferably, a plurality of mounting positions are provided on both sides of the rear portion of the miniature fire truck, and the mounting positions are detachably connected to the ends of the outer tubes by screws, so that the position of the hook on the fire truck can be reasonably changed as needed.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The utility model pulls the hook to pull the inner tube from the outer tube to an appropriate length so that the hook can be put on the burning electric vehicle. At this time, the mini fire truck can be started, and the mini fire truck drives the movement of the outer tube. The outer tube moves relative to the inner tube, thereby extending the inner tube from the outer tube to the maximum extent. The outer tube and the inner tube are automatically locked by the guide locking assembly. The mini fire truck can then tow the burning electric vehicle, thereby achieving the purpose of towing the burning electric vehicle away. In this way, there is no need to perform a length fixing operation, which is conducive to saving time and can better deal with fires, thereby solving the problem that towing electric vehicles in the background technology is time-consuming and difficult to deal with fires well.

[0014] 2. The utility model installs the hook on the back of the mini fire truck by screws. The rear of the mini fire truck is provided with multiple installation positions for the hook, so that the position of the hook on the fire truck can be reasonably changed as needed, and the use effect is better;

[0015] 3. The utility model fixes and supports the PTFE sleeve through the plug of the inner tube. The plug of the outer tube can prevent deformation caused by external force on the end face. The buffer pad is used to prevent the inner tube from hitting the plug of the outer tube when it is retracted, thereby preventing damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-section of the present invention;

[0019] Figure 3 This is a schematic diagram of the specific structure of the inner tube and outer tube in the present invention in a locked state (the release switch is blurred);

[0020] Figure 4 This is a schematic diagram of the specific structure of the inner tube and the outer tube in the present invention when they are in the unlocked state (the release switch is blurred and the stop spring has not yet been reset).

[0021] In the figure: 1. Outer tube; 2. Inner tube; 3. Guide locking assembly; 31. Guide tube sleeve; 32. Guide sleeve; 33. Frame; 34. Stop spring; 341. End; 35. Arrow; 36. Notch; 37. Release switch; 4. Buffer pad; 5. PTFE sleeve; 6. Hook. DETAILED DESCRIPTION

[0022] like Figure 1-4 As shown, the utility model provides a flexible hook and a miniature fire truck with the flexible hook, wherein the flexible hook includes an outer tube 1, an inner tube 2 sliding along the inside of the outer tube 1, and a curved hook 6 fixed to the head of the inner tube 2 (the curved hook 6 is finally made of high-temperature resistant alloy steel material, which has excellent high-temperature resistance and can maintain structural strength and stability in a high-temperature environment). The outer tube 1 and the inner tube 2 are both equipped with mutually cooperating guide locking components 3, which maintain the linear movement of the outer tube 1 relative to the inner tube 2 in a normal state through the guide locking component 3. When the inner tube 2 is extended to the maximum length, the inner tube 2 is locked with the outer tube 1. A plurality of mounting positions are set on both sides of the rear of the miniature fire truck, and the mounting positions are detachably connected to the end of the outer tube 1 by screws.

[0023] The hook is installed on the back of the mini fire truck by screws. Multiple installation positions are set at the rear of the mini fire truck for the hook to be installed, so that the position of the hook on the fire truck can be reasonably changed as needed. In the initial state, the inner tube 2 is retracted in the outer tube 1. When in use, the hook 6 is pulled to pull the inner tube 2 from the outer tube 1 to an appropriate length, and the relative linear movement of the two is maintained by the guide locking component 3 so that the hook 6 can be put on the burning electric vehicle. At this time, the mini fire truck can be started, and the outer tube 1 is driven by the mini fire truck to move. The outer tube 1 moves relative to the inner tube 2, so that the inner tube 2 is extended from the outer tube 1 to the maximum extent. The outer tube 1 and the inner tube 2 are automatically locked by the guide locking component 3, and the mini fire truck at the back can tow the burning electric vehicle, thereby achieving the purpose of towing the burning electric vehicle away. In this way, there is no need to perform a length fixing operation, which is conducive to saving time and better responding to fire situations.

[0024] The following is the specific structure of the guide locking assembly 3: the guide locking assembly 3 includes a guide sleeve 31 fixed on the inner wall of the outer tube 1, and a guide sleeve 32 fixed on the outer wall of the inner tube 2. The guide sleeve 32 can move linearly along the guide sleeve 31. The head of the guide sleeve 31 is fixedly connected to a frame 33 on which a stop spring 34 is installed. The top of the guide sleeve 32 is fixedly connected to an arrow 35. The side end of the arrow 35 is provided with a notch 36. The stop spring 34 has two end portions 341. When the arrow 35 moves upward and contacts the end portion 341, the stop spring 34 will be deformed, and its end portion 341 will enter the notch 36 of the arrow 35.

[0025] When the inner tube 2 moves along the inside of the outer tube 1, the guide sleeve 32 on the inner tube 2 will move linearly along the guide sleeve 31 on the outer tube 1 to maintain the linear movement of the inner tube 2 relative to the outer tube 1. When the inner tube 2 extends to the maximum length from the outer tube 1, the top arrow 35 of the guide sleeve 32 will push open the end 341 of the stop spring 34 (the stop spring 34 is deformed), and the end 341 of the stop spring 34 falls into the notch 36 of the guide sleeve to complete the locking. Conversely, when the end 341 of the stop spring 34 is pushed down from the notch 36 of the arrow 35, the inner tube 2 can be manually retracted into the inside of the outer tube 1 to complete the release action (when the stop spring 34 leaves the notch 36, the release action is completed). After the end 341 of the stop spring 34 leaves the notch 36, it will automatically reset due to its elasticity, so that the arrow 35 can push the end 341 open again to perform the locking operation.

[0026] Furthermore, a release switch 37 connected to the end 341 of the stop spring 34 is rotatably connected to the outer wall of the frame 33, so that the end 341 of the stop spring 34 can be driven to disengage from the notch 36 on the arrow 35 by rotating the release switch 37, which is more convenient for the staff to operate. When the release switch 37 is not subject to force (at this time, the arrow 35 has moved downward and will not block the stop spring 34, and the stop spring 34 can be smoothly reset), when the end 341 of the stop spring 34 is reset due to its elasticity, it will also drive the release switch 37 to reset.

[0027] In addition, the bottoms of the outer tube 1 and the inner tube 2 are both provided with plugs, and a buffer pad 4 is installed on the plug of the outer tube 1. A polyfluoroethylene sleeve 5 is installed on the outer wall of the inner tube 2 near the bottom end. The polyfluoroethylene sleeve 5 is fixedly supported by the plug of the inner tube 2. The plug of the outer tube 1 can prevent deformation caused by external force acting on the end face. The buffer pad 4 is used to prevent the inner tube 2 from hitting the plug of the outer tube 1 when it is retracted, thereby causing damage. The polyfluoroethylene sleeve 5 is used to maintain the coaxiality of the inner tube 2 inside the outer tube 1 to avoid offset and affect the expansion and contraction of the inner tube 2 compared to the outer tube 1.

[0028] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A hook, comprising an outer tube (1), an inner tube (2) sliding along the inner portion of the outer tube (1), and a hook (6) fixed to the head of the inner tube (2), characterized in that: The outer tube (1) and the inner tube (2) are both equipped with mutually cooperating guide locking assemblies (3), which maintain the linear movement of the outer tube (1) relative to the inner tube (2) under normal conditions through the guide locking assemblies (3). When the inner tube (2) extends to a maximum length, the inner tube (2) and the outer tube (1) are locked.

2. The hook according to claim 1, characterized in that: The guide locking assembly (3) includes a guide sleeve (31) fixed on the inner wall of the outer tube (1) and a guide sleeve (32) fixed on the outer wall of the inner tube (2). The guide sleeve (32) can move linearly along the guide sleeve (31). The head of the guide sleeve (31) is fixedly connected to a frame (33) on which a stop spring (34) is installed. The top of the guide sleeve (32) is fixedly connected to an arrow (35). A notch (36) is provided at the side end of the arrow (35). The stop spring (34) has two end portions (341). When the arrow (35) moves upward and contacts the end portions (341), the stop spring (34) is deformed, and its end portions (341) enter the notch (36) of the arrow (35).

3. The hook according to claim 2, characterized in that: A release switch (37) connected to the end (341) of the stop spring (34) is rotatably connected to the outer side wall of the frame (33).

4. The hook according to claim 3, characterized in that: The bottoms of the outer tube (1) and the inner tube (2) are both provided with plugs, a buffer pad (4) is installed on the plug of the outer tube (1), and a polytetrafluoroethylene sleeve (5) is installed near the bottom end of the outer wall of the inner tube (2), and the polytetrafluoroethylene sleeve (5) is fixedly supported by the plug of the inner tube (2).

5. The hook according to claim 3, characterized in that: The hook (6) is made of high-temperature resistant alloy steel material.

6. A miniature fire truck, characterized by: The micro fire truck comprises a flexible hook as claimed in any one of claims 1 to 5, wherein a plurality of mounting positions are provided on both sides of the rear portion of the micro fire truck, and the mounting positions are detachably connected to the ends of the outer tube (1) by screws, so that the flexible hook as claimed in any one of claims 1 to 5 is mounted on the rear portion of the micro fire truck.

Images