Multifunctional rescue auxiliary device for windowsill fixing
By using a telescopic rod structure that supports and engages with the square tube, along with locking components, the problem of inconvenient adjustment of traditional window sill fixing devices is solved. This enables rapid adaptation to different window sill thicknesses and multi-functional rescue operations, improving rescue efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 高涛
- Filing Date
- 2025-07-11
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional window sill fixing devices are inconvenient to adjust, inefficient, and have limited functionality, making them unable to quickly adapt to different window sill thicknesses and perform multi-functional rescue operations.
A telescopic rod structure comprising a supporting square tube and an abutting square tube was designed, which, combined with a locking component and guide wheels, enables quick locking and adjustment to adapt to different window sill heights, and allows for the hoisting of materials or personnel via the guide wheels.
It achieves fast and reliable window sill fixing, improving rescue efficiency and safety. It can quickly adapt to different window sill thicknesses and supports material hoisting and personnel descent.
Smart Images

Figure CN224269942U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire rescue equipment technology, and in particular to a multi-functional rescue auxiliary device for fixing windowsills. Background Technology
[0002] In the field of fire and rescue, especially in building fires or other emergencies, rescuers often need to use building windowsills as anchor points to set up rescue equipment for personnel evacuation or material transport. Traditional window sill fixing devices are usually quite simple in structure, perhaps consisting only of a fixed-length support rod or a telescopic rod requiring cumbersome bolt adjustments. These devices have significant shortcomings:
[0003] 1. Inconvenient adjustment and low efficiency: When the length needs to be manually adjusted to accommodate windowsills of different thicknesses, it is often necessary to loosen and tighten multiple bolts one by one, which wastes valuable time at the rescue scene where every second counts.
[0004] 2. Limited functionality: Most devices only provide simple support and fixation functions, used for suspending ropes or as a fulcrum, and cannot be used for lifting materials or assisting in the descent of personnel.
[0005] Therefore, there is an urgent need for a rescue auxiliary device that can quickly and reliably adapt to different window sill thicknesses for fixing, and integrate multiple functions (such as convenient hoisting) to improve the efficiency and safety of fire rescue. Utility Model Content
[0006] To solve the above-mentioned technical problems, this utility model provides a multi-functional rescue auxiliary device for fixing windowsills.
[0007] The present invention provides a multi-functional rescue auxiliary device for fixing windowsills, including a supporting square tube, a slidingly connected abutting square tube inserted inside the supporting square tube, and an L-shaped plate installed at the bottom of the supporting square tube and the top of the abutting square tube.
[0008] The top opening of the supporting square tube is equipped with a locking component for locking the abutting square tube. The locking component includes a sleeve tube, which has an installation cavity communicating with the inner cavity of the sleeve tube. A rotating rod is installed in the installation cavity. The rotating rod has an integrally formed arc-shaped protrusion. An elastically connected abutting plate is also installed in the installation cavity. An arc-shaped mating part is fixedly fitted on the abutting plate corresponding to the rotating rod.
[0009] The supporting square tube is equipped with height-adjustable guide wheels, which are used to hoist and transport objects.
[0010] Preferably, two symmetrically distributed mating plates are fixedly installed in the installation cavity of the sleeve tube, and the abutting plate is located in the cavity inside the mating plate. Multiple sliding rods are fixedly installed on the abutting plate, and the sliding rods pass through the through holes of the mating plates and are fixedly installed with rod caps. Spring A is sleeved on the sliding rods.
[0011] Preferably, one end of the spring A is fixedly connected to the docking plate, and the other end of the spring A is fixedly connected to the rod cap.
[0012] Preferably, a handle is installed on the rotating rod.
[0013] Preferably, a sliding tube is sleeved on the supporting square tube, and an ear piece is fixedly installed on the sliding tube. A lock is installed on the ear piece, and the housing of the guide wheel is hooked on the lock.
[0014] Preferably, the sliding tube is equipped with a plurality of fastening screws for securing the sliding tube.
[0015] Preferably, a sleeve is fixedly installed on the L-shaped plate, and the sleeve is fitted onto the bottom of the supporting square tube or abuts against the top of the square tube and is fixed by bolts.
[0016] Preferably, both the bottom of the supporting square tube and the abutting square tube are sealed, and a spring B is installed inside the supporting square tube. One end of the spring B is fixedly connected to the seal at the bottom of the supporting square tube, and the other end of the spring B is fixedly connected to the seal at the bottom of the square tube.
[0017] Compared with related technologies, the multifunctional rescue auxiliary device for fixing windowsills provided by this utility model has the following beneficial effects:
[0018] In this invention, the supporting square tube and the abutting square tube form a telescopic rod structure, which can be adapted to windowsills of different heights. The abutting square tube, which slides outward from the supporting square tube, can be locked and unlocked quickly through the locking component. After the supporting square tube and the abutting square tube are fixed on the windowsill, the height of the sliding tube can be adjusted along the supporting square tube according to the actual required height. After that, the fastening screw can be tightened. Then, the guide wheel can be fastened to the ear plate through the lock. Then, rescuers can pass the rescue rope through the guide wheel and throw it downstairs, so that fire-fighting equipment can be hoisted or rescuers can be lowered downstairs quickly. Attached Figure Description
[0019] Figure 1 A schematic diagram of a preferred embodiment of the multifunctional rescue auxiliary device for fixing windowsills provided by this utility model;
[0020] Figure 2 for Figure 1 The diagram shows the exploded structure.
[0021] Figure 3 for Figure 2 A cross-sectional enlarged view of the locking component on the supporting square tube shown.
[0022] Figure 4 for Figure 2 The diagram shows the structure of the sliding tube.
[0023] Figure 5 This is a schematic diagram of the present invention installed on a windowsill.
[0024] The following are the labeling elements in the diagram: 1. Supporting square tube; 2. Abutting square tube; 3. Locking component; 31. Sleeve tube; 31a. Mounting cavity; 311. Butt plate; 32. Rotating rod; 321. Arc-shaped protrusion; 33. Abutting plate; 331. Arc-shaped butt joint; 34. Sliding rod; 35. Spring A; 36. Handle; 4. L-shaped plate; 41. Sleeve; 5. Sliding tube; 51. Ear; 52. Fastening screw; 6. Guide wheel; 61. Lock; 7. Spring B. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0026] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0027] Please see Figures 1 to 4 This utility model provides a multi-functional rescue auxiliary device for fixing windowsills, which includes a supporting square tube 1, an abutting square tube 2, and a locking component 3.
[0028] In the embodiments of this utility model, please refer to Figures 1 to 4A slidingly connected abutting square tube 2 is inserted into the supporting square tube 1. L-shaped plates 4 are installed at the bottom of the supporting square tube 1 and the top of the abutting square tube 2. Specifically, a sleeve 41 is fixedly installed on the L-shaped plate 4. The sleeve 41 is fitted onto the bottom of the supporting square tube 1 or the top of the abutting square tube 2 and fixed with bolts. A locking component 3 for locking the abutting square tube 2 is installed at the top opening of the supporting square tube 1. The locking component 3 includes a sleeve 31, which has an installation cavity 31a communicating with its inner cavity. A rotating rod 32 is installed in the installation cavity 31a, and the rotating rod 32 has an integrally formed arc-shaped protrusion 321. The inner part is also equipped with a flexible connecting abutment plate 33, and an arc-shaped docking part 331 is fixedly fitted on the plate surface corresponding to the rotating rod 32. Two symmetrically distributed docking plates 311 are fixedly installed in the installation cavity 31a opened in the sleeve pipe 31, and the abutment plate 33 is located in the cavity inside the docking plate 311. Multiple sliding rods 34 are fixedly installed on the abutment plate 33, and the sliding rods 34 pass through the through holes opened in the docking plate 311 and are fixedly installed with rod caps. A spring A35 is sleeved on the sliding rod 34. One end of the spring A35 is fixedly connected to the docking plate 311, and the other end of the spring A35 is fixedly connected to the rod cap. A handle 36 is installed on the rotating rod 32.
[0029] It should be noted that: by rotating the handle 36, the rotating rod 32 is driven to rotate. At this time, the arc-shaped protrusion 321 on the rotating rod 32 gradually abuts against the arc-shaped mating part 331. Therefore, the abutting plate 33 moves into the inner cavity of the sleeve tube 31 and the spring A35 is stretched until the abutting plate 33 firmly abuts against the corresponding position of the abutting square tube 2. At this time, the arc-shaped protrusion 321 is inserted into the arc-shaped mating part 331, so the supporting square tube 1 can lock the abutting square tube 2. When the handle 36 is reversed, the rotating rod 32 is driven to reverse. The arc-shaped protrusion 321 on the rotating rod 32 gradually slides out of the arc-shaped mating part 331. Therefore, under the action of the elastic force of the spring A35, the abutting plate 33 gradually stops pressing against the abutting square tube 2 until the arc-shaped protrusion 321 completely slides out of the arc-shaped mating part 331. Then the abutting plate 33 resets and unlocks the abutting square tube 2. The overall operation is simple and convenient.
[0030] In this application, the supporting square tube 1 and the abutting square tube 2 form a telescopic rod structure, which can be adapted to windowsills of different heights, and can be locked and unlocked by quickly sliding the abutting square tube 2 of the supporting square tube 1 outward through the locking component 3.
[0031] Furthermore, in order to facilitate the rapid sliding of the abutting square tube 2 outward from the supporting square tube 1, the bottoms of both the supporting square tube 1 and the abutting square tube 2 in this application adopt a sealed structure, and a spring B7 is installed inside the supporting square tube 1. One end of the spring B7 is fixedly connected to the sealed end of the bottom of the supporting square tube 1, and the other end of the spring B7 is fixedly connected to the sealed end of the bottom of the abutting square tube 2. Therefore, initially, the abutting square tube 2 is slid back into the supporting square tube 1 so that the spring B7 is compressed. At this time, the locking component 3 is used to lock the abutting square tube 2.
[0032] When using this device, align the L-shaped plate 4 at the bottom of the supporting square tube 1 with the lower edge of the windowsill. Then, use the locking component 3 to unlock the abutting square tube 2. Under the force of the spring B7, the abutting square tube 2 slides outward from the supporting square tube 1, improving the efficiency of rescuers in adjusting the length of the abutting square tube 2 and the supporting square tube 1. With the rescuers pushing the abutting square tube 2 upward, the L-shaped plate 4 at the top of the abutting square tube 2 aligns with the upper edge of the windowsill (as shown in the attached diagram). Figure 5 (As shown), the locking component 3 is then used to lock the abutting square tube 2.
[0033] In this application, high-strength lightweight materials, such as aerospace aluminum alloy (e.g., 7075 or 6061-T6) or carbon fiber composite materials, are used to manufacture the main load-bearing components, including the supporting square tube 1, the mating square tube 2, the sliding tube 5, and the L-shaped plate 4. This effectively reduces the weight of the device while ensuring strength and rigidity.
[0034] Furthermore, the spring A35 is made of high-strength spring steel wire (such as piano wire or stainless steel wire) that is resistant to high temperature and corrosion, thereby reducing the risk of fatigue or failure of the spring A35 of the locking component 3 after long-term use.
[0035] In the embodiments of this utility model, please refer to Figures 1 to 4 The support square tube 1 is equipped with height-adjustable guide wheels 6, which are used to hoist and transport objects. Specifically, a sliding tube 5 is sleeved on the support square tube 1, and an ear piece 51 is fixedly installed on the sliding tube 5. A lock 61 is installed on the ear piece 51. The housing of the guide wheel 6 is hooked on the lock 61, and multiple fastening screws 52 for fastening the sliding tube 5 are installed on the sliding tube 5.
[0036] It should be noted that after the supporting square tube 1 and the abutting square tube 2 are fixed on the windowsill, the height of the sliding tube 5 is adjusted along the supporting square tube 1 according to the actual required height. After that, tighten the fastening screw 52. Then, the guide wheel 6 is fastened to the ear piece 51 through the lock 61. Then, the rescuers can pass the rescue rope through the guide wheel 6 and throw it downstairs.
[0037] For example, the end of the rescue rope thrown downstairs can be tied to a fire hose, and rescuers can pull the rescue rope to quickly raise the fire hose to the floor where the rescue is needed. At the same time, the same method can be used to quickly hoist fire-fighting equipment. Alternatively, the rescue rope can be tied around the waist of the rescuer (using a figure-eight knot or other installation method), and then the rescuer can gradually lower the rescue rope to lower the rescuer to a safe area downstairs.
[0038] In this embodiment, rescuers can place the rescue rope into the bag, which can be tied to the supporting square tube 1 with straps so that it can be quickly retrieved when needed.
[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A multi-functional rescue auxiliary device for fixing windowsills, characterized in that, Includes a supporting square tube (1), into which a slidingly connected abutting square tube (2) is inserted, and both the bottom of the supporting square tube (1) and the top of the abutting square tube (2) are equipped with L-shaped plates (4); The top opening of the supporting square tube (1) is equipped with a locking component (3) for locking the abutting square tube (2). The locking component (3) includes a sleeve tube (31). The sleeve tube (31) has an installation cavity (31a) that communicates with the inner cavity of the sleeve tube (31). A rotating rod (32) is installed in the installation cavity (31a). An integrally formed arc-shaped protrusion (321) is provided on the rotating rod (32). An elastically connected abutting plate (33) is also installed in the installation cavity (31a). An arc-shaped mating part (331) is fixedly fitted on the abutting plate (33) corresponding to the rotating rod (32). The supporting square tube (1) is equipped with height-adjustable guide wheels (6), which are used to hoist and transport objects.
2. The multi-functional rescue auxiliary device for fixing windowsills according to claim 1, characterized in that, Two symmetrically distributed mating plates (311) are fixedly installed in the installation cavity (31a) opened in the sleeve (31), and the abutting plate (33) is located in the cavity inside the mating plate (311). Multiple sliding rods (34) are fixedly installed on the abutting plate (33), and the sliding rods (34) pass through the through holes opened in the mating plate (311) and are fixedly installed with rod caps. A spring A (35) is sleeved on the sliding rod (34).
3. The multi-functional rescue auxiliary device for fixing windowsills according to claim 2, characterized in that, One end of the spring A (35) is fixedly connected to the docking plate (311), and the other end of the spring A (35) is fixedly connected to the rod cap.
4. The multi-functional rescue auxiliary device for fixing windowsills according to claim 1, characterized in that, A handle (36) is mounted on the rotating rod (32).
5. The multi-functional rescue auxiliary device for fixing windowsills according to claim 1, characterized in that, A sliding tube (5) is sleeved on the supporting square tube (1), and an ear piece (51) is fixedly installed on the sliding tube (5). A buckle (61) is installed on the ear piece (51), and the housing of the guide wheel (6) is hooked on the buckle (61).
6. The multi-functional rescue auxiliary device for fixing windowsills according to claim 5, characterized in that, The sliding tube (5) is equipped with a plurality of fastening screws (52) for fastening the sliding tube (5).
7. The multi-functional rescue auxiliary device for fixing windowsills according to claim 1, characterized in that, A sleeve (41) is fixedly installed on the L-shaped plate (4). The sleeve (41) is fitted onto the bottom of the supporting square tube (1) or abuts against the top of the square tube (2) and is fixed by bolts.
8. The multi-functional rescue auxiliary device for fixing windowsills according to claim 1, characterized in that, The bottom of both the supporting square tube (1) and the abutting square tube (2) are sealed. A spring B (7) is installed inside the supporting square tube (1). One end of the spring B (7) is fixedly connected to the seal at the bottom of the supporting square tube (1), and the other end of the spring B (7) is fixedly connected to the seal at the bottom of the square tube (2).