Fire scene cutting machine with blade convenient to replace

Abstract

The fire scene cutting machine comprises a vehicle body, a blade replacing mechanism, a mounting clamping mechanism and a clamping auxiliary mechanism, the blade replacing mechanism comprises a driving motor, a rotating shaft, a clamping pipe, a connecting plate, a matching block, a cutting piece and a matching groove, the mounting clamping mechanism comprises a rotating ring, a pulling rod, an embedding plate and an embedding groove, the blade replacing mechanism enables the blade replacing process to be more convenient, the combination of a matching block and a matching groove can ensure that the blade is stably fixed, meanwhile, the replacing work does not depend on tedious tools any more, and the working efficiency is improved. A clamping mechanism is mounted, so that the blade can be firmly fixed in the working process, and the problem of blade loosening in the traditional design is solved. And the embedded plate is matched with the embedded groove, so that tight linkage of the blade and the rotating shaft can be ensured, and the cutting stability and safety are improved.

Description

Technical Field

[0001] This utility model relates to the field of cutting machine technology, and more specifically, it relates to a fire-fighting cutting machine with easily replaceable blades. Background Technology

[0002] In existing technologies, traditional fire-fighting cutting machines typically present numerous problems during blade replacement and installation. Firstly, blade replacement is inconvenient, often requiring complex tools and numerous steps, which not only increases maintenance time but also leads to low operator efficiency. In emergency environments such as fire scenes, time is of the essence; any delay can affect the progress of operations and even the effectiveness of rescue efforts. Therefore, cutting machines need to have a fast and more convenient blade replacement mechanism.

[0003] Secondly, the blade installation and fixation are poor. In some existing designs, the blade may rely on traditional bolts or clamps for fixation, but these methods are often not secure enough. Over time, the blade may loosen, affecting the cutting effect and even posing a safety hazard. In addition, traditional fixing methods may adversely affect the stability and cutting accuracy of the blade, leading to imbalance and inefficiency during the cutting process.

[0004] Another significant problem is the cumbersome disassembly process. In existing technologies, disassembling a cutting machine blade typically requires multiple steps, sometimes even manual removal of bolts, clips, and other components, which is time-consuming and labor-intensive. This is particularly cumbersome and inefficient for high-frequency, high-intensity equipment like fire-fighting cutting machines. In emergency rescue or operational situations, rapid repair and blade replacement are crucial. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a fire cutting machine with easy blade replacement, so as to solve the technical problems mentioned in the background art, such as the cutting blades being difficult to replace, the blades having poor installation and fixing effect, and the disassembly being cumbersome.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a fire scene cutting machine with easy-to-change blades, comprising a vehicle body, a blade changing mechanism, an installation and clamping mechanism, and a clamping auxiliary mechanism. The blade changing mechanism includes a drive motor, a rotating shaft, a clamping tube, a connecting plate, a mating block, a cutting blade, and a mating groove. The drive motor is mounted on the vehicle body, the rotating shaft is mounted on the output end of the drive motor, the mating groove is provided on the cutting blade, the connecting plate is mounted on the bottom end of the side wall of the clamping tube, and the mating block is mounted on the bottom end face of the connecting plate. The mating block can extend into the mating groove, allowing the clamping tube to fit the rotating shaft. The installation and clamping mechanism includes a rotating ring, a pulling rod, an embedding plate, and an embedding groove. The rotating shaft extends directionally into the clamping tube, the embedding groove is provided on the side wall of the rotating shaft, the rotating ring is rotatably mounted on the outer wall of the clamping tube, the embedding plate is rotatably mounted on the side wall of the clamping tube, and the two ends of the pulling rod are rotatably connected to the rotating ring and the embedding plate. The embedding plate can extend into or away from the embedding groove, causing the rotating shaft and the clamping tube to be linked or dislinked.

[0009] The present invention is further configured such that the snap-fit ​​auxiliary mechanism includes a winding rod, a return spring, a rotating block, and a linkage ring. The winding rod is fixedly installed on the outer wall of the snap-fit ​​tube, the return spring is fitted on the winding rod, the rotating block is slidably mounted on the winding rod, and one end of the return spring is connected to the rotating block. The linkage ring is threadedly mounted on the outer wall of the snap-fit ​​tube, the rotating block is mounted on the top end of the rotating ring, and the linkage ring can extend into the rotating block to enable multiple sets of rotating blocks to move together, so that the rotating block drives the rotating ring to rotate and be fixed.

[0010] The present invention is further configured such that wheels are installed around the bottom of the vehicle body, and a first push handle is installed on the side of the vehicle body.

[0011] The present invention is further configured such that a compensating pusher is rotatably mounted on the first pusher, and an external bolt can pass through the compensating pusher and the first pusher to fix the compensating pusher. The first pusher provides support for the user's operation, while the design of the compensating pusher increases the stability of the pusher.

[0012] The present invention is further provided that a protective shell is installed on the top end of the vehicle body, the protective shell enclosing the drive motor, thereby preventing damage to the motor from the external environment and extending the service life of the equipment.

[0013] The present invention is further configured such that a heat dissipation hole is provided at the top end of the protective shell, and the heat of the drive motor is dissipated through the heat dissipation hole. The heat dissipation hole at the top of the protective shell helps to dissipate heat from the motor and prevent the motor from being damaged due to overheating, thereby ensuring that the cutting machine operates efficiently for a long time.

[0014] The present invention is further configured such that a cutting groove and a discharge groove are provided at the bottom end of the vehicle body, and the cutting blade is set in the cutting groove. The design of the discharge groove can effectively discharge the waste or cutting material generated during the cutting process, ensuring the cleanliness of the working area and avoiding the waste from affecting the cutting effect.

[0015] The present invention is further configured such that a support ring is installed at the bottom end of the connecting plate, and the bottom end of the rotating ring cooperates with the top end of the support ring for support, thereby ensuring the stable rotation of the rotating ring.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a fire scene cutting machine with easy blade replacement, which has the following advantages:

[0018] This invention features a blade replacement mechanism. Through its structure consisting of a drive motor, rotating shaft, retaining pipe, connecting plate, mating block, and mating groove, the blade replacement process becomes more convenient. The engagement of the mating block and the mating groove ensures stable blade fixation, while eliminating the need for cumbersome tools. The rapid installation and removal of blades significantly reduces downtime and improves the overall efficiency of the equipment, especially in emergency environments such as fire scenes, enabling rapid blade replacement.

[0019] This invention features a mounting and locking mechanism. The coordinated design of the rotating ring, pull rod, embedding plate, and embedding groove ensures the blade is securely fixed during operation, avoiding the blade loosening problem found in traditional designs. The embedding plate, in conjunction with the embedding groove, ensures tight linkage between the blade and the rotating shaft, improving cutting stability and safety. The pull rod, in conjunction with the rotating ring, allows the embedding plate to easily extend into or move away from the embedding groove, making blade removal more convenient and eliminating unnecessary steps, making it suitable for emergency use.

[0020] This utility model is equipped with a snap-fit ​​auxiliary mechanism. The structural design of the winding rod, return spring, rotating block and linkage ring ensures the stability and reliability of the snap-fit ​​tube. The return spring can provide continuous pressure to ensure that the rotating block and rotating ring do not loosen during operation, thereby stabilizing the fixing effect of the blade. The linkage ring can automatically help the rotating ring to complete the rotation and fixing work through the linkage of the rotating block. This makes the cutting machine maintain higher stability during use and reduces the difficulty of manual operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of the device in this utility model from a side view.

[0023] Figure 3 This is a schematic diagram of the overall structure of the device in this utility model from a bottom view.

[0024] Figure 4 This is a schematic diagram of the installation snap-fit ​​mechanism and snap-fit ​​auxiliary mechanism in this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the mounting clipping mechanism and the clipping auxiliary mechanism in this utility model.

[0026] In the diagram: 1. Vehicle body; 2. Drive motor; 3. Shaft; 4. Connecting pipe; 5. Connecting plate; 6. Mating block; 7. Cutting blade; 8. Mating groove; 9. Rotating ring; 10. Pulling rod; 11. Embedded plate; 12. Embedded groove; 13. Winding rod; 14. Return spring; 15. Rotating block; 16. Linkage ring; 17. Wheel; 18. First push handle; 19. Compensating push handle; 20. Protective shell; 21. Heat dissipation hole; 22. Cutting groove; 23. Discharge groove; 24. Support ring. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5A fire-fighting cutting machine with easy-to-change blades includes a vehicle body 1, a blade changing mechanism, a mounting and clamping mechanism, and a clamping auxiliary mechanism. The blade changing mechanism includes a drive motor 2, a rotating shaft 3, a clamping tube 4, a connecting plate 5, a mating block 6, a cutting blade 7, and a mating groove 8. The drive motor 2 is mounted on the vehicle body 1, the rotating shaft 3 is mounted on the output end of the drive motor 2, the mating groove 8 is provided on the cutting blade, the connecting plate 5 is mounted on the bottom end of the side wall of the clamping tube 4, and the mating block 6 is mounted on the bottom end face of the connecting plate 5. The mating block 6 can extend into the mating groove. Within 8, the clamping tube 4 inserts the rotating shaft 3. The clamping mechanism includes a rotating ring 9, a pulling rod 10, an insert plate 11, and an insert groove 12. The rotating shaft 3 can extend into the clamping tube 4. The insert groove 12 is set on the side wall of the rotating shaft 3. The rotating ring 9 is rotatably mounted on the outer wall of the clamping tube 4. The insert plate 11 is rotatably mounted on the side wall of the clamping tube 4. The two ends of the pulling rod 10 are rotatably connected to the rotating ring 9 and the insert plate 11. The insert plate 11 can extend into or away from the insert groove 12, so that the rotating shaft 3 and the clamping tube 4 are linked or dislinked.

[0031] In this embodiment, the drive motor 2 is fixed on the vehicle body 1, the rotating shaft 3 is installed at the output end of the drive motor 2, the cutting blade 7 is provided with a mating groove 8, the connecting plate 5 is installed at the bottom of the side wall of the clamping tube 4, and the mating block 6 is installed at the bottom of the connecting plate 5. When installing the cutting blade 7, the mating block 6 is aligned and inserted into the mating groove 8 of the cutting blade 7, and at the same time the clamping tube 4 is fitted into the rotating shaft 3 to realize the quick installation and fixation of the cutting blade 7. The side wall of the rotating shaft 3 is provided with an embedding groove 12, and the rotating ring 9 is limited to rotating on the outer wall of the clamping tube 4. The embedding plate 11 is connected to the rotating ring 9 through the pull rod 10. When the rotating ring 9 is rotated, the embedding plate 11 is driven to rotate through the pull rod 10, so that the embedding plate 11 extends into or away from the embedding groove 12 of the rotating shaft 3, thereby realizing the linkage or disengagement of the rotating shaft 3 and the clamping tube 4.

[0032] The snap-fit ​​auxiliary mechanism includes a winding rod 13, a return spring 14, a rotating block 15, and a linkage ring 16. The winding rod 13 is fixedly installed on the outer wall of the snap-fit ​​tube 4. The return spring 14 is fitted onto the winding rod 13. The rotating block 15 is slidably mounted on the winding rod 13, and one end of the return spring 14 is connected to the rotating block 15. The linkage ring 16 is threadedly mounted on the outer wall of the snap-fit ​​tube 4. The rotating block 15 is mounted on the top end of the rotating ring 9. The linkage ring 16 can extend into the rotating block 15 to make multiple sets of rotating blocks 15 move in tandem, so that the rotating block 15 drives the rotating ring 9 to rotate and be fixed.

[0033] In this embodiment, to ensure the stability of the position of the rotating ring 9, the winding rod 13 is fixed to the outer wall of the retaining tube 4, the return spring 14 is sleeved on the winding rod 13, the rotating block 15 can rotate and slide on the winding rod 13, one end of the return spring 14 is connected to the rotating block 15, and the linkage ring 16 is connected to the outer wall of the retaining tube 4 by threads. When the linkage ring 16 extends into the rotating block 15, it can drive multiple rotating blocks 15 to rotate together, so that the rotating block 15 drives the rotating ring 9 to rotate and maintain a fixed position.

[0034] Please see Figures 1-5 As a supplementary embodiment of a fire-fighting cutting machine that facilitates blade replacement by including a blade replacement mechanism, a mounting and locking mechanism, and a locking auxiliary mechanism: Wheels 17 are installed around the bottom of the vehicle body 1, and a first push handle 18 is installed on the side of the vehicle body 1. A compensation push handle 19 is rotatably installed on the first push handle 18, and an external bolt can pass through the compensation push handle 19 and the first push handle 18 to fix the compensation push handle 19. A protective shell 20 is installed on the top of the vehicle body 1, which encloses the drive motor 2. A heat dissipation hole 21 is opened on the top of the protective shell 20, and the heat of the drive motor 2 is dissipated through the heat dissipation hole 21. A cutting groove 22 and a discharge groove 23 are opened on the bottom of the vehicle body 1, and the cutting blade is placed in the cutting groove 22. A support ring 24 is installed on the bottom of the connecting plate 5, and the bottom of the rotating ring 9 cooperates with the top of the support ring 24 for support.

[0035] More specifically, when a cutting operation is required, the drive motor 2 starts, the rotating shaft 3 begins to rotate, and the blade begins to rotate, entering the cutting state. The cutting machine can be easily moved to the working position via the wheels 17 and push handle on the vehicle body 1. After starting, the cutting blade performs the cutting operation along the cutting groove 22. Waste generated during the cutting process is discharged through the discharge groove 23 to ensure the working area is clean. When the blade needs to be replaced, the operator separates the blade from the rotating shaft 3 using components such as the pull rod 10, rotating ring 9, and embedded plate 11, and installs the new blade through the mating block 6 and mating groove 8. The snap-fit ​​mechanism and snap-fit ​​auxiliary mechanism provide a stable connection and safe locking during this process. In order to protect the drive motor 2, the cutting machine is equipped with a protective shell 20, and the shell has heat dissipation holes 21 to help dissipate the heat generated during the operation of the motor and avoid overheating damage. After the work is completed, the snap-fit ​​mechanism returns to the initial position through the rotating ring 9 and return spring 14, ready for the next operation. The cutting machine can also be moved to a new working position via the push handle and wheels 17 on the vehicle body 1.

[0036] In summary, when the overall equipment is in use or running: when the blade replacement mechanism is running, it is responsible for the installation and replacement of the cutting blade 7. The drive motor 2 is fixed on the vehicle body 1, the rotating shaft 3 is installed at the output end of the drive motor 2, the cutting blade 7 is provided with a mating groove 8, the connecting plate 5 is installed at the bottom of the side wall of the clamping tube 4, and the mating block 6 is installed at the bottom of the connecting plate 5. When installing the cutting blade 7, the mating block 6 is aligned and inserted into the mating groove 8 of the cutting blade 7, and at the same time the clamping tube 4 is fitted into the rotating shaft 3 to achieve quick installation and fixation of the cutting blade 7.

[0037] When the snap-fit ​​mechanism is installed, it enables the linkage or separation of the rotating shaft 3 and the snap-fit ​​tube 4. The side wall of the rotating shaft 3 is provided with an embedding groove 12. The rotating ring 9 is limited to rotating on the outer wall of the snap-fit ​​tube 4. The embedding plate 11 is connected to the rotating ring 9 through the pull rod 10. When the rotating ring 9 is rotated, the embedding plate 11 is driven to rotate through the pull rod 10, so that the embedding plate 11 extends into or away from the embedding groove 12 of the rotating shaft 3, thereby enabling the linkage or separation of the rotating shaft 3 and the snap-fit ​​tube 4.

[0038] When the auxiliary mechanism needs to be engaged, ensure the stability of the position of the rotating ring 9. The winding rod 13 is fixed to the outer wall of the clamping tube 4. The return spring 14 is sleeved on the winding rod 13. The rotating block 15 can rotate and slide on the winding rod 13. One end of the return spring 14 is connected to the rotating block 15. The linkage ring 16 is connected to the outer wall of the clamping tube 4 through a thread. When the linkage ring 16 extends into the rotating block 15, it can drive multiple rotating blocks 15 to rotate together, so that the rotating block 15 drives the rotating ring 9 to rotate and maintain a fixed position.

[0039] When a cutting operation is required, the drive motor 2 starts, the rotating shaft 3 begins to rotate, and the blade begins to rotate, entering the cutting state. The cutting machine can be easily moved to the working position via the wheels 17 and push handle on the vehicle body 1. After starting, the cutting blade performs the cutting operation along the cutting groove 22. Waste generated during the cutting process is discharged through the discharge groove 23 to ensure a clean working area. When the blade needs to be replaced, the operator separates the blade from the rotating shaft 3 using components such as the pull rod 10, rotating ring 9, and embedded plate 11, and installs the new blade through the mating block 6 and mating groove 8. The snap-fit ​​mechanism and snap-fit ​​auxiliary mechanism provide a stable connection and safe locking during this process. To protect the drive motor 2, the cutting machine is equipped with a protective shell 20, and the shell has heat dissipation holes 21 to help dissipate the heat generated during the operation of the motor and avoid overheating damage. After the work is completed, the snap-fit ​​mechanism returns to the initial position through the rotating ring 9 and return spring 14, ready for the next operation. The cutting machine can also be moved to a new working position via the push handle and wheels 17 on the vehicle body 1.

[0040] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fire scene cutting machine with easy-to-change blades, comprising a vehicle body (1), a blade changing mechanism, a mounting and clamping mechanism, and a clamping auxiliary mechanism, characterized in that: The blade changing mechanism includes a drive motor (2), a rotating shaft (3), a retaining tube (4), a connecting plate (5), a mating block (6), a cutting blade (7), and a mating groove (8). The drive motor (2) is mounted on the vehicle body (1), the rotating shaft (3) is mounted on the output end of the drive motor (2), the mating groove (8) is located on the cutting blade, the connecting plate (5) is mounted on the bottom end of the side wall of the retaining tube (4), and the mating block (6) is mounted on the bottom end face of the connecting plate (5). The mating block (6) can extend into the mating groove (8), allowing the retaining tube (4) to hold the rotating shaft (7) 3) Insertion: The mounting and snapping mechanism includes a rotating ring (9), a pulling rod (10), an embedding plate (11), and an embedding groove (12). The rotating shaft (3) extends directionally into the snap-fit ​​tube (4). The embedding groove (12) is set on the side wall of the rotating shaft (3). The rotating ring (9) is limited to rotating and installed on the outer wall of the snap-fit ​​tube (4). The embedding plate (11) is rotatably installed on the side wall of the snap-fit ​​tube (4). The two ends of the pulling rod (10) are rotatably connected with the rotating ring (9) and the embedding plate (11). The embedding plate (11) can extend into or away from the embedding groove (12).

2. A fire-fighting cutting machine with easily replaceable blades as described in claim 1, characterized in that: The locking auxiliary mechanism includes a winding rod (13), a return spring (14), a rotating block (15), and a linkage ring (16). The winding rod (13) is fixedly installed on the outer wall of the locking tube (4). The return spring (14) is fitted on the winding rod (13). The rotating block (15) is slidably mounted on the winding rod (13), and one end of the return spring (14) is connected to the rotating block (15). The linkage ring (16) is threadedly mounted on the outer wall of the locking tube (4). The rotating block (15) is mounted on the top end of the rotating ring (9).

3. A fire-fighting cutting machine with easily replaceable blades according to claim 1, characterized in that: The bottom of the vehicle body (1) is equipped with wheels (17) and the side of the vehicle body (1) is equipped with a first push handle (18).

4. A fire-fighting cutting machine with easily replaceable blades according to claim 3, characterized in that: A compensation pusher (19) is rotatably mounted on the first pusher (18), and an external bolt can pass through the compensation pusher (19) and the first pusher (18) to fix the compensation pusher (19).

5. A fire-fighting cutting machine with easily replaceable blades according to claim 1, characterized in that: A protective shell (20) is installed on the top end of the vehicle body (1), and the protective shell (20) encloses the drive motor (2).

6. A fire-fighting cutting machine with easily replaceable blades according to claim 5, characterized in that: The top end of the protective shell (20) is provided with a heat dissipation hole (21), and the heat of the drive motor (2) is dissipated through the heat dissipation hole (21).

7. A fire-fighting cutting machine with easily replaceable blades according to claim 1, characterized in that: The bottom end of the vehicle body (1) is provided with a cutting groove (22) and a discharge groove (23), and the cutting blade is set in the cutting groove (22).

8. A fire-fighting cutting machine with easily replaceable blades according to claim 1, characterized in that: The bottom end of the connecting plate (5) is provided with a support ring (24), and the bottom end of the rotating ring (9) is matched with the top end of the support ring (24) for support.

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