Emergency rescue breaking tool

Abstract

The application provides an emergency rescue breaking tool, which comprises a base, a main fixing frame, a support frame, a sliding frame and an auxiliary fixing frame arranged in sequence on the lower side of the base, a main disassembling unit on the main fixing frame, a guide seat, a main side end cap slidably arranged at the front end of the guide seat, a main side support member for exerting a pre-tightening force on the main side end cap, a tool rod installed in the guide seat, working heads and operating heads respectively arranged at the two ends of the tool rod, an auxiliary disassembling unit on the auxiliary fixing frame, an auxiliary breaking rod, a clamping mechanism arranged on the auxiliary fixing frame, a sliding seat installed on the auxiliary breaking rod, an auxiliary side end cap and a driving plate installed on the sliding seat, an auxiliary side support member arranged on the outer side of the sliding seat, a partition plate arranged on the auxiliary breaking rod, an elastic retaining member arranged between the partition plate and the driving plate, and a lubricating oil supply device installed on the base. The application solves the problem that bolts are difficult to disassemble in the state of rust or tight fit, and is applied to emergency rescue, so that the operation efficiency is high and the damage to facilities is small.

Description

Technical Field

[0001] This invention belongs to the field of rescue equipment technology, and in particular relates to an emergency rescue demolition tool. Background Technology

[0002] Common demolition tools are mainly used by firefighters, traffic police, and armed police forces in situations such as fires, earthquakes, car accidents, and emergency rescues to quickly break down and remove obstacles such as security window bars, collapsed building steel bars, and window railings. However, with the development of society in recent years and the increase in amusement and leisure venues, people often become trapped inside amusement facilities or public leisure facilities, or their arms, legs, or feet become stuck. Current technology typically uses electric drills, hydraulic shears, and jacks for demolition, which is time-consuming and labor-intensive. For structural components connected by bolts, simply removing the bolts quickly is usually sufficient for rescue. However, for rusted bolts, ordinary wrenches are sometimes ineffective. Using traditional demolition tools can damage not only the bolts but also the structural components they connect to, potentially rendering the entire device or equipment unusable. Furthermore, there is a risk of secondary injury during the operation. Therefore, it is necessary to improve existing demolition tools. Summary of the Invention

[0003] In view of this, the present invention aims to overcome the deficiencies in the prior art and propose an emergency rescue demolition tool.

[0004] To achieve the above objectives, the technical solution created by this invention is implemented as follows: An emergency rescue demolition tool includes a base, with a main fixing frame, a support frame, a sliding frame and an auxiliary fixing frame arranged sequentially on the lower side of the base. A main dismantling unit is installed on the main fixing frame and an auxiliary dismantling unit is installed on the auxiliary fixing frame. The main disassembly unit includes a guide seat, a main side end cap is slidably mounted on the front end of the guide seat, and a pre-tightening force is applied to the main side end cap by the main side support. A tool rod is slidably mounted axially inside the guide seat. A working head is provided at the front end of the tool rod. One end of the tool rod, which is different from the working head, extends out of the guide seat and has an operating head at its end. The auxiliary disassembly unit includes an auxiliary breaking rod that is slidably mounted on an auxiliary fixing frame. The auxiliary fixing frame is also provided with a clamping mechanism for adjusting the distance between the sliding frame and the support frame. A slide is mounted on the auxiliary breaking rod, and an auxiliary side cap is slidably mounted on the slide. A drive plate is provided on the side of the slide away from the main disassembly unit. The drive plate is driven by the clamping mechanism to achieve synchronous adjustment with the sliding frame. The sliding fit between the main side cap and the support frame allows the front end of the guide seat to be supported by the support frame, resulting in better overall stability. The sliding fit between the auxiliary side cap and the sliding frame allows the front end of the auxiliary demolition rod to be supported by the sliding frame, resulting in better overall stability. An auxiliary side support is provided on the outside of the slide seat to apply a pre-tightening force to the upper auxiliary side cap. Meanwhile, a baffle is provided on the auxiliary breaking rod, and an elastic retainer is provided between the baffle and the drive plate to reset the auxiliary breaking rod and keep it from falling off the slide. A lubrication supply device is also installed on the base, and the oil reservoir of the lubrication supply device is connected to the inner cavity of the main end cap and the auxiliary end cap through the oil supply pipeline.

[0005] Furthermore, the tool rod and the auxiliary demolition rod are arranged coaxially.

[0006] Furthermore, the working head at the front end of the tool lever is an external hexagonal head or an internal hexagonal head.

[0007] Furthermore, both the main side cap and the auxiliary side cap have sealing gaskets at their open ends.

[0008] Furthermore, an operating lever can be detachably mounted on the operating head.

[0009] Furthermore, the clamping mechanism includes a clamping cylinder, the extension rod end of the clamping cylinder faces the main disassembly unit, and the end of the extension rod is connected to the drive plate, the upper end of the drive plate is connected to the extension rod.

[0010] Furthermore, the front end of the guide seat is provided with a receiving groove for accommodating the working head, the depth of which is greater than the thickness of the working head.

[0011] Furthermore, the main side support includes a main side spring fitted onto the guide seat, with one end of the main side spring abutting against the main side end cap and the other end abutting against the retaining ring on the outer wall of the guide seat.

[0012] Furthermore, the auxiliary side support includes an auxiliary side spring fitted onto the slide, with one end of the auxiliary side spring abutting against the auxiliary side end cap and the other end abutting against the drive plate.

[0013] Furthermore, the elastic retainer includes a spring fitted onto the auxiliary demolition rod, with one end of the spring abutting against the drive plate and the other end abutting against the baffle plate.

[0014] Compared with existing technologies, the present invention has the following advantages: This invention features a rationally designed structure. A clamping mechanism drives a sliding frame to move, allowing the sliding frame and support frame to jointly clamp and fix the structural component containing the bolt. The main end cap of the support frame is pressed against the end face of the structural component on the nut side of the bolt, while the auxiliary end face of the sliding frame is pressed against the surface of the structural component on the bolt screw side. This ensures that lubricating oil penetrates the gap between the bolt and the threaded hole. One side of the tool rod, driven manually or by an external drive device, rotates the operating head. Simultaneously, the auxiliary breaking rod continuously applies a vibration force to the bolt to be disassembled. Lubricating oil seeps into the gap between the bolt and the bolt hole. Under the combined action of the tool rod and the auxiliary breaking rod, the bolt can be easily loosened or unscrewed, effectively solving the problem of difficult disassembly of bolts in rusted or tightly fitted conditions. In emergency rescue, it not only offers high operational efficiency and saves time and effort but also minimizes damage to facilities. Attached Figure Description

[0015] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 A schematic diagram of the structure created by this invention; Figure 2 Perspective view created for this invention; Figure 3 This is a schematic diagram of the auxiliary disassembly unit in this invention; Figure 4 This is a schematic diagram of the main disassembly unit in this invention. Figure 5 This is a cross-sectional view of the auxiliary disassembly unit in the present invention. Figure 6 This is a cross-sectional view of the main disassembly unit in the present invention. Figure 7 for Figure 5 A schematic diagram of the auxiliary demolition rod in operation; Figure 8 for Figure 6 A schematic diagram of the tool lever during operation; Figure 9 A schematic diagram illustrating the application of this invention; Figure 10 Perspective view for creating an application of this invention. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0017] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention 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, and therefore should not be construed as a limitation on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0018] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] An emergency rescue demolition tool, such as Figures 1 to 10 As shown, the system includes a base 1, with a main fixing frame 2, a support frame 3, a sliding frame 4, and an auxiliary fixing frame 5 arranged sequentially on the lower side of the base. The main fixing frame, support frame, and auxiliary fixing frame can be an integral structure with the base, or they can be separately manufactured and welded together, or they can be detachably connected and fixed. Further details are omitted here. A main disassembly unit is installed on the main fixing frame, and an auxiliary disassembly unit is installed on the auxiliary fixing frame. It should be noted that the specific structure of the support frame and sliding frame can be designed according to the actual usage scenario, as long as it can ensure that the sliding frame, together with the support frame, clamps and fixes the structural component 29 where the bolt is located.

[0021] The main disassembly unit includes a guide seat 6, with a main side cap 7 slidably mounted on the front end of the guide seat. A main side support 8 applies a pre-tightening force to the main side cap. A tool rod 9 is slidably mounted axially inside the guide seat. A working head 10 is located at the front end of the tool rod. For example, the working head at the front end of the tool rod can be an external hexagonal head or an internal hexagonal head. Of course, the working head can be other structures to accommodate bolts and facilitate force application during disassembly, depending on actual needs. The end of the tool rod, different from the working head, extends out of the guide seat and has an operating head 11 at its end. An operating lever 27 can be detachably mounted on the operating head to facilitate force application when disassembling bolts. Alternatively, in other optional embodiments, an electric device or mechanism can be connected to the operating head to drive the tool rod to rotate.

[0022] The auxiliary disassembly unit includes an auxiliary breaking rod 12 slidably mounted on an auxiliary fixing frame. A clamping mechanism 13 for adjusting the distance between the sliding frame and the support frame is also provided on the auxiliary fixing frame. A slide block 14 is mounted on the auxiliary breaking rod, and an auxiliary side cap 15 is slidably mounted on the slide block. A drive plate 16 is provided on the side of the slide block away from the main disassembly unit. This drive plate is driven by the clamping mechanism to achieve synchronous adjustment with the sliding frame. In practical applications, on-site personnel can tap the end of the auxiliary breaking rod extending beyond the auxiliary fixing frame to disengage the auxiliary bolt from the bolt hole, improving the efficiency of bolt disassembly. It should be noted that a high-frequency tapping method is preferred, for example, a tapping frequency of more than twice per second. With this structure and operating method, when the auxiliary breaking rod is subjected to axial force during hammering, it compresses the elastic retainer, causing the auxiliary breaking rod to move towards the bolt. The front end of the auxiliary breaking rod impacts the end face of the bolt. When the force on the auxiliary breaking rod is released, the elastic retainer returns the auxiliary breaking rod to its original position. This reciprocating motion creates a changing vibrational force on the bolt, which, in conjunction with the force exerted by the tool rod during bolt removal, successfully separates the bolt from the bolt hole. A further improvement could be to use an existing vibrator or a motor with an eccentric device to apply the vibrational force to the auxiliary breaking rod, reducing manpower and improving breaking efficiency.

[0023] The sliding fit between the main side cap and the support frame allows the front end of the guide seat to be supported by the support frame, resulting in better overall stability. Similarly, the sliding fit between the auxiliary side cap and the sliding frame allows the front end of the auxiliary demolition rod to be supported by the sliding frame, further improving overall stability. An auxiliary side support member 17 is provided on the outer side of the slide to apply a pre-tightening force to the upper auxiliary side cap. Simultaneously, a baffle plate 18 is provided on the auxiliary demolition rod, and an elastic retaining member 19 is provided between the baffle plate and the drive plate to reset the auxiliary demolition rod and prevent it from detaching from the slide. For example, the elastic retaining member includes a spring fitted onto the auxiliary demolition rod, with one end (connected to and) abutting against the drive plate, and the other end (connected to and) abutting against the baffle plate.

[0024] The aforementioned guide seat has a receiving groove 20 at its front end for accommodating the working head. The depth of this receiving groove (along the axial direction of the tool rod) is greater than the thickness of the working head, meaning the working head can be completely housed within the receiving groove. Preferably, the aforementioned tool rod and auxiliary breaking rod are arranged coaxially, which is more conducive to effectively applying force to the bolts to be disassembled. A lubrication supply device 21 is also installed on the base. The oil reservoir of this lubrication supply device is connected to the inner cavities of the main side end cap and the auxiliary side end cap through oil supply pipelines 22. As an example, the lubrication supply device can be an existing oil supply device, which can be automatically controlled or manually pressed to supply oil, and the specific form is not limited. It should be noted that compared to the existing technology of using destructive methods to disassemble bolted structural components, even if a small amount of oil overflows when using this tool, or some oil remains in the bolt hole after disassembling the bolt, it is still a relatively good result. The oil can be easily removed later, and in many cases, the oil does not need to be cleaned. After the rescue is completed, screw the bolts back into the original bolt holes and reassemble the structural components to restore them to normal use.

[0025] Both the main end cap and the auxiliary end cap have sealing gaskets at their open ends. In a further improved design, to enhance sealing, sealing rings can be installed between the main end cap and the guide seat, and between the auxiliary end cap and the slide. Of course, even if sealing rings are not installed between the main end cap and the guide seat, and between the auxiliary end cap and the slide, since the components are in a sliding fit and the gaps are small, it is permissible as long as the lubricating oil does not leak out in large quantities, and it can serve to lubricate the threaded parts. In the design with sealing rings, due to the higher sealing performance, when the auxiliary breaking rod and the tool rod move towards the bolt side, they will compress the oil, making it easier for the oil to penetrate between the bolt and the threaded hole.

[0026] In an optional embodiment, the clamping mechanism includes a clamping cylinder 23. The extension rod end of the clamping cylinder faces the main disassembly unit, and the end of the extension rod is connected to the drive plate. The upper end of the drive plate is connected to the extension rod. By controlling the extension rod of the clamping cylinder to extend, the sliding frame can be moved towards the support frame, thereby clamping and fixing the structural component to the outer end through the sliding frame and the support frame, so that the working rod and the auxiliary disassembly rod are aligned with the bolt to be disassembled. It should be noted that when the clamping cylinder is not activated, the extension rod has an extension section 24 extending out of the cylinder body. The front end of the extension section is fixed to the sliding frame, and the drive plate is fixed to the extension section. During the operation of the clamping cylinder, there will be no interference. Whether the auxiliary end cap slides with the sliding frame or the main end cap slides with the support frame, it reliably ensures a stable connection between the end cap and the surface of the structural component, maximizing the sealing performance. The clamping mechanism synchronously drives the sliding frame and the auxiliary end cap, which, while clamping and fixing the tool, also ensures that the auxiliary end cap is in contact with the surface of the structural component where the bolt is located. It is simple to operate and highly reliable.

[0027] The main side support includes a main side spring fitted into the guide seat. One end of the main side spring (connected to and abuts against the main side end cap) and the other end (connected to and abuts against the retaining ring 28 on the outer wall of the guide seat. To prevent the main side end cap from moving too far relative to the support frame, a limiting block 25 can be set at the end of the main side end cap near the main fixed frame. Under normal conditions, the limiting block limits the main side end cap, preventing the main side spring from pushing the main side end cap out of the support frame. This structural design can prevent the main side end cap from coming off under normal conditions and will not affect the surface of the main side end cap pressing against the outer part of the bolt hole on the structural component. When it reaches the working position, the main side end cap will self-adjust, and a certain displacement towards the main fixed frame is allowed, as long as the main side end cap is pressed tightly and fits against the surface of the structural component.

[0028] The aforementioned auxiliary side support includes an auxiliary side spring fitted onto the slide block. One end of the auxiliary side spring (connected to and abuts against the auxiliary side end cap) and the other end (connected to and abuts against the drive plate) are connected to and abut against the drive plate. To prevent the auxiliary side end cap from moving too far relative to the slide frame, a stop block 26 can be provided at the end of the auxiliary side end cap near the drive plate. Under normal conditions, the stop block limits the auxiliary side end cap, preventing the auxiliary side spring from pushing the auxiliary side end cap out of the slide frame. This structural design ensures that the auxiliary side end cap moves synchronously with the slide frame during adjustment operations. At the same time, when abutting against the surface of the structural component where the bolt is located, it does not affect the auxiliary side end cap pressing against the surface of the outer part of the bolt hole on the structural component. When the working position is reached, the auxiliary side end cap makes adaptive adjustments, and a certain displacement towards the drive plate side is permissible, as long as the auxiliary side end face is pressed and adhered to the surface of the structural component.

[0029] In application, first, the sliding frame is moved by the clamping mechanism, so that the sliding frame and the support frame together clamp and fix the structural component where the bolt is located. The main end cap of the support frame is pressed against the end face of the structural component on the nut side of the bolt, while the auxiliary end face of the sliding frame is pressed against the surface of the structural component on the bolt thread side. Then, lubricating oil is injected into the two end caps through the lubrication supply device. One side of the tool rod is driven by manpower or an external drive device to rotate the operating head. At the same time, the auxiliary breaking rod continuously applies a vibration force to the bolt to be disassembled. The lubricating oil will seep into the gap between the bolt and the bolt hole. Under the combined action of the tool rod and the auxiliary breaking rod, the bolt can be easily unscrewed a certain distance. Then, the clamping mechanism is released to disassemble the next bolt. Bolts loosened with this breaking tool can also be unscrewed with a conventional wrench. Of course, if the bolt is not smooth enough between the bolt and the threaded hole, the bolt can also be removed directly using the tool rod. In other words, after loosening or turning the bolts outward a short distance using this demolition tool, a conventional wrench can be used to remove them. This method allows for seamless coordination among rescue personnel, maximizing rescue efficiency with just one set of this tool. It effectively solves the problem of difficult bolt removal due to rust or tight fit, providing high operational efficiency, saving time and effort, and minimizing damage to facilities during emergency rescues.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An emergency rescue demolition tool, characterized in that: Includes a base, and on the lower side of the base are arranged a main fixing frame, a support frame, a sliding frame and an auxiliary fixing frame in sequence. The main fixing frame is equipped with a main disassembly unit and the auxiliary fixing frame is equipped with an auxiliary disassembly unit. The main disassembly unit includes a guide seat, a main side end cap slidably mounted on the front end of the guide seat, and a pre-tightening force applied to the main side end cap by the main side support. A tool rod is slidably mounted axially inside the guide seat. A working head is provided at the front end of the tool rod. One end of the tool rod, different from the working head, extends out of the guide seat and has an operating head at its end. The main side end cap and the support frame are in sliding fit. The auxiliary disassembly unit includes an auxiliary breaking rod that is slidably mounted on an auxiliary fixing frame. The auxiliary fixing frame is also provided with a clamping mechanism for adjusting the distance between the sliding frame and the support frame. A slide is mounted on the auxiliary breaking rod, and an auxiliary side cap is slidably mounted on the slide. A drive plate is provided on the side of the slide away from the main disassembly unit. The drive plate is driven by the clamping mechanism to achieve synchronous adjustment with the sliding frame. An auxiliary side support is provided on the outer side of the slide block to apply a pre-tightening force to the upper auxiliary side end cap; at the same time, a baffle is provided on the auxiliary breaking rod, and an elastic retainer is provided between the baffle and the drive plate to reset the auxiliary breaking rod and keep it from detaching from the slide block; a lubrication oil supply device is also installed on the base, and the oil reservoir of the lubrication oil supply device is connected to the inner cavity of the main side end cap and the auxiliary side end cap through oil supply pipelines respectively; Both the main end cap and the auxiliary end cap have sealing gaskets at their open ends. The clamping mechanism includes a clamping cylinder with its extension rod facing the main disassembly unit and its end connected to the drive plate. The upper end of the drive plate is connected to the extension rod. The elastic retainer includes a spring fitted onto the auxiliary breaking rod, with one end of the spring abutting against the drive plate and the other end against the baffle plate. The clamping mechanism pushes the sliding frame to move, so that the sliding frame and the support frame together clamp and fix the structural component where the bolt is located. The main end cap at the support frame is close to the end face of the structural component on the nut side of the bolt, while the auxiliary end face at the sliding frame is close to the surface of the structural component on the bolt screw side. While the lubrication supply device injects lubricating oil into the two end caps, one side of the tool rod drives the operating head to rotate with the help of manual or external driving device. As the auxiliary breaking rod continuously applies excitation force to the bolt to be disassembled, the lubricating oil seeps into the gap between the bolt and the bolt hole.

2. The emergency rescue demolition tool according to claim 1, characterized in that: The tool rod and the auxiliary demolition rod are arranged coaxially.

3. The emergency rescue demolition tool according to claim 1, characterized in that: The working head at the front end of the tool lever is either an external hexagonal head or an internal hexagonal head.

4. The emergency rescue demolition tool according to claim 1, characterized in that: An operating lever can be detachably installed on the operating head.

5. The emergency rescue demolition tool according to claim 1, characterized in that: The front end of the guide seat is provided with a receiving groove for accommodating the working head, and the depth of the receiving groove is greater than the thickness of the working head.

6. The emergency rescue demolition tool according to claim 1, characterized in that: The main side support includes a main side spring fitted onto the guide seat. One end of the main side spring abuts against the main side end cap, and the other end abuts against the retaining ring on the outer wall of the guide seat.

7. The emergency rescue demolition tool according to claim 1, characterized in that: The auxiliary side support includes an auxiliary side spring fitted onto the slide, with one end of the auxiliary side spring abutting against the auxiliary side end cap and the other end abutting against the drive plate.

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