A foldable electric shear for easy operation in confined spaces

Abstract

This invention discloses a foldable electric shear for easy operation in confined spaces, relating to the field of electric shears. It includes a mounting box with a connecting plate fixedly connected to one side. This foldable electric shear, designed for confined space operation, utilizes a first transmission mechanism. A first telescopic drive component moves a first transmission rack, which in turn rotates a first transmission gear and a first mounting shaft. This allows adjustment of the angles of the shearing block and the shearing blade, enabling shearing at any angle in confined spaces and expanding the range of shearing and support breaking. Within a confined space, combined with a second transmission mechanism controlling the rotation of the second mounting shaft, the shearing block can be automatically adjusted to any position within the space. This multi-degree-of-freedom adjustment method allows firefighters to precisely adjust the shearing blade to the optimal position according to the actual rescue situation, enabling more efficient completion of rescue missions, whether widening spaces or cutting objects.

Description

Technical Field

[0001] This invention relates to electric shearing technology, and more specifically to a foldable electric shearing that is convenient for operation in confined spaces. Background Technology

[0002] In fire rescue, industrial maintenance, and other special operations, it is often necessary to perform cutting and demolition operations in confined spaces. Most existing electric shears have relatively fixed structures, lacking flexibility and adaptability, and have limitations when working in confined spaces.

[0003] Traditional electric shears have limited adjustment range for the angle and position of their cutting components. In confined spaces, due to space constraints and the complex and varied positions and angles of objects, traditional shears struggle to precisely adjust the angle and position of the cutting blades according to actual needs. This prevents them from cutting at any angle within confined spaces, limiting the range of cutting and support breaking. Consequently, they cannot efficiently complete rescue tasks such as opening up space or cutting objects short, reducing their ability to respond to complex rescue scenarios in confined spaces. This may delay rescue opportunities and pose greater danger to trapped individuals.

[0004] Therefore, developing an electric shear that is easy to operate in confined spaces and has multi-degree-of-freedom adjustment capabilities is of great practical significance. Summary of the Invention

[0005] The purpose of this invention is to provide a foldable electric shear that is convenient for operation in confined spaces, in order to solve the problem that the existing technology cannot achieve shearing at any angle in confined spaces, resulting in a limited range of shearing and support breaking, and thus cannot efficiently complete rescue tasks such as opening up space or cutting objects.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a foldable electric shear for easy operation in confined spaces, comprising a mounting box, a connecting plate fixedly connected to one side of the mounting box, a transmission box fixedly connected to one side of the connecting plate, a first mounting shaft rotatably connected to the transmission box, a first transmission mechanism connected to the transmission box being driven to rotate on the outer surface of the first mounting shaft, a connecting frame fixedly connected to one end of the first mounting shaft, a second mounting shaft rotatably connected to the connecting frame, a second transmission mechanism connected to the connecting frame being driven to rotate on the outer surface of the second mounting shaft, a mounting column fixedly connected to the outer surface of the second mounting shaft, and a shearing mounting block fixedly connected to one end of the mounting column;

[0007] The top and bottom of the shearing mounting block are rotatably connected to hydraulic telescopic rods. The outer surface of the hydraulic telescopic rods is connected to a drive mechanism that is connected to the mounting box. The drive mechanism is used to move the hydraulic telescopic rods. One end of the hydraulic telescopic rods is fixedly connected to a connecting block. A shearing blade is rotatably connected to the connecting block. The shearing blade is rotatably connected to the shearing mounting block.

[0008] Furthermore, the drive mechanism includes a rotating drive component fixedly connected to the mounting box, and a hydraulic oil pump fixedly connected to the mounting box at the output end of the rotating drive component. The output end of the hydraulic oil pump is connected to a hydraulic telescopic rod via a hose. A storage battery is slidably connected to the mounting box, and the output end of the storage battery is electrically connected to the rotating drive component via a wire.

[0009] Furthermore, the first transmission mechanism includes a first telescopic drive member fixedly connected to the transmission box, the output end of the first telescopic drive member being fixedly connected to a first transmission rack slidably connected to the transmission box, and one side of the first transmission rack being meshed with a first transmission gear fixedly sleeved to the first mounting shaft.

[0010] Furthermore, the second transmission mechanism includes a second telescopic drive member fixedly connected to the connecting frame, a second transmission rack fixedly connected to the output end of the second telescopic drive member and slidably connected to the connecting frame, and a second transmission gear fixedly sleeved to the second mounting shaft on one side of the second transmission rack.

[0011] Furthermore, protective frames are fixedly connected to the top and bottom of the shearing mounting block, and a camera mechanism connected to the mounting box is provided on one of the protective frames. The camera mechanism is used to display the position of the shearing mounting block.

[0012] Furthermore, the camera mechanism includes a camera fixedly connected to the protective frame, and the output end of the camera is electrically connected to a display screen fixedly connected to the mounting box via a wire.

[0013] Furthermore, a fixed frame is fixedly connected to one side of the shearing blade, a limit block is fixedly connected inside the fixed frame, a crushing pliers is slidably connected to the limit block, a fixing bolt threadedly connected to the fixed frame and threadedly connected to the crushing pliers is threadedly connected to the fixed frame, and a pressing block is fixedly connected to the top of the fixed frame.

[0014] Furthermore, a carrying handle is fixedly connected to the outer surface of the mounting box.

[0015] Compared with the prior art, the foldable electric shear provided by the present invention, which is convenient for operation in confined spaces, has the following advantages:

[0016] Through the first transmission mechanism, the first telescopic drive component moves the first transmission rack, which in turn rotates the first transmission gear and the first mounting shaft. This allows adjustment of the angle of the shearing mounting block and the shearing blade, enabling shearing at any angle in confined spaces and expanding the range of shearing and support breaking. Within confined spaces, combined with the rotation control of the second mounting shaft by the second transmission mechanism, the shearing mounting block can be automatically adjusted to any position within the space. This multi-degree-of-freedom adjustment method allows firefighters to precisely adjust the shearing blade to the optimal position according to the actual rescue situation. Whether it's opening up space or cutting objects, it enables more efficient completion of rescue missions, greatly improving the ability to respond to complex rescue scenarios in confined spaces and giving trapped personnel a greater chance of survival.

[0017] By installing a mounting frame for the breaker shears on one side of the shear blade, the breaker shears can be inserted and secured for smaller demolition tasks, allowing for easy access to narrow gaps and expanding the equipment's applicability. Meanwhile, protective frames at the top and bottom of the shear mounting block effectively prevent heavy objects from damaging the hydraulic telescopic rod during construction, providing protection. Furthermore, a camera mechanism on the protective frame transmits real-time footage from confined spaces to a display screen on the mounting box. Firefighters can adjust the shear blade position based on the footage, avoiding blind operation and improving rescue efficiency while ensuring safety, making the entire rescue operation more scientific, precise, and efficient. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a first perspective view of the external structure of the present invention;

[0020] Figure 2 This is a second perspective view of the external structure of the present invention;

[0021] Figure 3 This is a perspective view of the internal structure of the present invention;

[0022] Figure 4 This is a perspective view of the external structure of the fixing frame and the crushing clamp of the present invention;

[0023] Figure 5 For the present invention Figure 1 A magnified view of A in the middle.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Mounting box; 2. Connecting plate; 3. Transmission box; 4. First mounting shaft; 5. Connecting frame; 6. Second mounting shaft; 7. Mounting column; 8. Shearing mounting block; 9. Hydraulic telescopic rod; 10. Connecting block; 11. Shearing blade; 21. Rotation drive component; 22. Hydraulic oil pump; 23. Battery; 31. First telescopic drive component; 32. First transmission rack; 33. First transmission gear; 41. Second telescopic drive component; 42. Second transmission rack; 43. Second transmission gear; 51. Protective frame; 52. Camera; 53. Display screen; 61. Fixing frame; 62. Limiting block; 63. Crushing pliers; 64. Fixing bolt; 65. Pressing block. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] Please see Figures 1 to 5 As shown, the present invention provides a foldable electric shear for easy operation in confined spaces, including a mounting box 1, a connecting plate 2 fixedly connected to one side of the mounting box 1, a transmission box 3 fixedly connected to one side of the connecting plate 2, a first mounting shaft 4 rotatably connected to the transmission box 3, a first transmission mechanism connected to the transmission box 3 being driven to rotate on the outer surface of the first mounting shaft 4, a connecting frame 5 fixedly connected to one end of the first mounting shaft 4, a second mounting shaft 6 rotatably connected to the connecting frame 5, a second transmission mechanism connected to the connecting frame 5 being driven to rotate on the outer surface of the second mounting shaft 6, a mounting column 7 fixedly connected to the outer surface of the second mounting shaft 6, and a shearing mounting block 8 fixedly connected to one end of the mounting column 7;

[0029] Hydraulic telescopic rods 9 are rotatably connected to the top and bottom of the shearing mounting block 8. A drive mechanism connected to the mounting box 1 is connected to the outer surface of the hydraulic telescopic rod 9. The drive mechanism is used to drive the hydraulic telescopic rod 9 to move. A connecting block 10 is fixedly connected to one end of the hydraulic telescopic rod 9. A shearing blade 11 is rotatably connected to the connecting block 10. The shearing blade 11 is rotatably connected to the shearing mounting block 8.

[0030] The drive mechanism includes a rotating drive component 21 fixedly connected to the mounting box 1. The rotating drive component 21 is a servo motor, which is controlled by a PLC programming program. The servo motor can be controlled to rotate forward and backward and rotate at different angles. The output end of the rotating drive component 21 is fixedly connected to a hydraulic oil pump 22 connected to the mounting box 1. The output end of the hydraulic oil pump 22 is connected to the hydraulic telescopic rod 9 through a hose. A storage battery 23 is slidably connected to the mounting box 1. The output end of the storage battery 23 is electrically connected to the rotating drive component 21 through a wire.

[0031] The first transmission mechanism includes a first telescopic drive member 31 fixedly connected to the transmission box 3. The first telescopic drive member 31 is an electric telescopic rod. The output end of the first telescopic drive member 31 is fixedly connected to a first transmission rack 32 that is slidably connected to the transmission box 3. One side of the first transmission rack 32 is meshed with a first transmission gear 33 that is fixedly sleeved with the first mounting shaft 4. The first telescopic drive member 31 drives the first transmission rack 32 to move, and the first transmission rack 32 drives the first transmission gear 33 and the first mounting shaft 4 to rotate.

[0032] The second transmission mechanism includes a second telescopic drive member 41 fixedly connected to the connecting frame 5. The second telescopic drive member 41 is an electric telescopic rod. The output end of the second telescopic drive member 41 is fixedly connected to a second transmission rack 42 that is slidably connected to the connecting frame 5. One side of the second transmission rack 42 is meshed with a second transmission gear 43 that is fixedly sleeved with the second mounting shaft 6. The second telescopic drive member 41 drives the second transmission rack 42 to move, and the second transmission rack 42 drives the second transmission gear 43 and the second mounting shaft 6 to rotate.

[0033] During fire rescue, the installation box 1 is carried, and then the second installation shaft 6 is rotated by the second transmission mechanism. The second installation shaft 6 drives the installation column 7 to rotate, and the installation column 7 drives the shearing installation block 8 to rotate, so that the folded shearing installation block 8 rotates to a vertical position. Then, the shearing installation block 8 is inserted into the narrow rescue space. Then, the hydraulic oil pump 22 is activated by the rotation drive component 21, and the hydraulic oil pump 22 supplies oil to the hydraulic telescopic rod 9. At this time, the hydraulic telescopic rod 9 drives the shearing blades 11 to rotate, so that the two shearing blades 11 can open up the narrow space or cut the object in the narrow space to achieve the rescue. At the same time, the first installation shaft 4 is rotated by the first transmission mechanism, and the first installation shaft 4 drives the connecting frame 5, the second installation shaft 6, the installation column 7 and the shearing installation block 8 to rotate, thereby adjusting the shearing installation block. The angles of the shearing block 8 and the shearing blade 11 allow for shearing at any angle in confined spaces, increasing the range of shearing and support breaking. Simultaneously, within confined spaces, the second transmission mechanism drives the second mounting shaft 6 to rotate, which in turn drives the mounting column 7 and the shearing mounting block 8 to rotate. This, in turn, drives the first mounting shaft 4 to rotate, automatically adjusting the position of the shearing mounting block 8 within the confined space. This further enhances the positional adjustment of the shearing blade 11 within confined spaces, improving the shearer's ability to perform multi-degree-of-freedom shearing and breaking within narrow spaces, thus improving the rescue effectiveness for firefighters in confined spaces. After the rescue is completed, the second transmission mechanism drives the second mounting shaft 6 to rotate the shearing mounting block 8, allowing for folding and storage of the shearing mounting block 8 and the shearing blade 11, facilitating retrieval and storage for users.

[0034] Example 2

[0035] Based on Example 1, please refer to Figure 1 , Figure 3 and Figure 4 As shown, protective frames 51 are fixedly connected to the top and bottom of the shearing mounting block 8. One of the protective frames 51 is equipped with a camera mechanism connected to the mounting box 1. The camera mechanism is used to display the position of the shearing mounting block 8.

[0036] The camera mechanism includes a camera 52 fixedly connected to the protective frame 51, and the output end of the camera 52 is electrically connected to a display screen 53 fixedly connected to the mounting box 1 via a wire.

[0037] A fixed frame 61 is fixedly connected to one side of the shearing blade 11. A limit block 62 is fixedly connected inside the fixed frame 61. A crushing pliers 63 is slidably connected to the limit block 62. A fixing bolt 64, which is threadedly connected to the crushing pliers 63, is threadedly connected to the fixed frame 61. A pressing block 65 is fixedly connected to the top of the fixed frame 61.

[0038] A carrying handle is fixedly connected to the outer surface of the mounting box 1.

[0039] By using the protective frame 51 to prevent heavy objects from damaging the hydraulic telescopic rod 9 during construction, the hydraulic telescopic rod 9 is protected. At the same time, the camera 52 on the protective frame 51 transmits the image of the narrow space to the display screen 53 in real time, which allows firefighters to adjust the position of the shear blade 11 in real time according to the internal situation, further improving rescue efficiency. When encountering minor demolition, the appropriate breaking pliers 63 are inserted into the fixed frame 61, and then the fixing bolts 64 on the fixed frame 61 are rotated to fix the breaking pliers 63 in the fixed frame 61. Then the breaking pliers 63 are inserted into the narrow gap that needs to be broken, and then the demolition is carried out, thereby realizing the demolition of small spaces and further improving the applicability of the shears.

[0040] Working principle, working principle of each part:

[0041] Folding and unfolding principle:

[0042] Deployment Process: During fire rescue, personnel carry the installation box 1 and activate the second transmission mechanism. The second telescopic drive component 41 operates, and its output end drives the second transmission rack 42 to slide on the connecting frame 5. Since the second transmission rack 42 is meshed with the second transmission gear 43, and the second transmission gear 43 is fixedly sleeved on the second mounting shaft 6, the movement of the second transmission rack 42 will drive the second transmission gear 43 and the second mounting shaft 6 to rotate. The second mounting shaft 6 drives the mounting column 7 to rotate, and the mounting column 7 in turn drives the shearing mounting block 8 to rotate, so that the originally folded shearing mounting block 8 rotates to a vertical position, making it easier to insert into narrow rescue spaces.

[0043] Folding process: After the rescue is completed, the second transmission mechanism is restarted. Following the reverse order of the unfolding process, the shearing mounting block 8 is rotated back to the folded state through the coordinated action of the second telescopic drive component 41, the second transmission rack 42, the second transmission gear 43, and the second mounting shaft 6, making it convenient for users to take and store.

[0044] Shearing and spreading principles:

[0045] Once the shearing mounting block 8 is inserted into the confined rescue space, the drive mechanism is activated. The rotating drive component 21 (servo motor), controlled by the PLC programming program, begins operation, its output driving the hydraulic oil pump 22. The hydraulic oil pump 22 supplies oil to the hydraulic telescopic rod 9 through a hose, causing the hydraulic telescopic rod 9 to move. A connecting block 10 is fixedly connected to one end of the hydraulic telescopic rod 9, and a shearing blade 11 is rotatably connected to the connecting block 10, and the shearing blade 11 is also rotatably connected to the shearing mounting block 8. The movement of the hydraulic telescopic rod 9 drives the shearing blade 11 to rotate. The two shearing blades 11 work together to both cut objects in confined spaces and to open up confined spaces, thereby achieving the rescue objective.

[0046] Angle adjustment principle:

[0047] To achieve shearing at any angle in confined spaces and increase the range of shearing and support breaking, the first transmission mechanism is activated. The first telescopic drive component 31 operates, and its output end drives the first transmission rack 32 to slide on the transmission box 3. Because the first transmission rack 32 is meshed with the first transmission gear 33, and the first transmission gear 33 is fixedly sleeved on the first mounting shaft 4, the movement of the first transmission rack 32 will drive the first transmission gear 33 and the first mounting shaft 4 to rotate. The first mounting shaft 4 drives the connecting frame 5 to rotate, and the connecting frame 5 in turn drives the second mounting shaft 6, the mounting column 7, and the shearing mounting block 8 to rotate, thereby adjusting the angle of the shearing mounting block 8 and the shearing blade 11.

[0048] Position adjustment principle:

[0049] When the position of the shearing mounting block 8 needs to be automatically adjusted in a confined space, the first and second transmission mechanisms are activated simultaneously. The first transmission mechanism drives the first mounting shaft 4 to rotate, causing the connecting frame 5, the second mounting shaft 6, the mounting column 7, and the shearing mounting block 8 to rotate as a whole. The second transmission mechanism drives the second mounting shaft 6 to rotate, causing the mounting column 7 and the shearing mounting block 8 to rotate relative to the connecting frame 5. The synergistic effect of these two mechanisms allows the shearing mounting block 8 to be adjusted to any position in a confined space, further improving the positional flexibility of the shearing blade 11 in confined spaces and enhancing the shearer's ability to perform multi-degree-of-freedom shearing and breaking operations in narrow spaces.

[0050] Protection and display principles:

[0051] Protection principle: The top and bottom of the shearing installation block 8 are fixedly connected with protective frames 51. During construction, the protective frames 51 can block some heavy objects to prevent them from damaging the hydraulic telescopic rod 9, thus protecting the hydraulic telescopic rod 9.

[0052] Display principle: A camera mechanism is installed on one of the protective frames 51. The camera 52 is fixed on the protective frame 51, and its output is electrically connected to the display screen 53 installed on the mounting box 1 via a wire. The camera 52 can capture images of the narrow space in real time and transmit the image signal to the display screen 53 for display. Firefighters can understand the situation in the narrow space in real time based on the image displayed on the display screen 53, and thus accurately adjust the position of the shear blade 11, improving rescue efficiency.

[0053] Principles of breaking through small spaces:

[0054] When encountering smaller demolition tasks, insert the appropriate breaker 63 into the fixed frame 61, allowing the breaker 63 to slide onto the limiting block 62 to the desired position. Then, rotate the fixing bolt 64 on the fixed frame 61. Since the fixing bolt 64 is threadedly connected to the breaker 63, rotating the fixing bolt 64 will secure the breaker 63 within the fixed frame 61. After securing the breaker 63, insert it into the narrow gap that needs to be demolished. By operating the shears, the breaker 63 can break through the narrow gap, thus achieving demolition in smaller spaces and further improving the applicability of the shears.

[0055] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A folding electric shear for easy operation in confined spaces, characterized in that, The system includes a mounting box (1), a connecting plate (2) fixedly connected to one side of the mounting box (1), a transmission box (3) fixedly connected to one side of the connecting plate (2), a first mounting shaft (4) rotatably connected to the transmission box (3), a first transmission mechanism connected to the transmission box (3) being connected to the outer surface of the first mounting shaft (4), the first transmission mechanism being used to drive the first mounting shaft (4) to rotate, a connecting frame (5) fixedly connected to one end of the first mounting shaft (4), a second mounting shaft (6) rotatably connected to the connecting frame (5), a second transmission mechanism connected to the connecting frame (5) being connected to the outer surface of the second mounting shaft (6), the second transmission mechanism being used to drive the second mounting shaft (6) to rotate, a mounting column (7) fixedly connected to the outer surface of the second mounting shaft (6), and a shearing mounting block (8) fixedly connected to one end of the mounting column (7). The top and bottom of the shearing mounting block (8) are rotatably connected to hydraulic telescopic rods (9). The outer surface of the hydraulic telescopic rod (9) is connected to a drive mechanism connected to the mounting box (1). The drive mechanism is used to drive the hydraulic telescopic rod (9) to move. One end of the hydraulic telescopic rod (9) is fixedly connected to a connecting block (10). A shearing blade (11) is rotatably connected to the connecting block (10). The shearing blade (11) is rotatably connected to the shearing mounting block (8).

2. A folding electric shear for easy operation in confined spaces according to claim 1, characterized in that, The drive mechanism includes a rotating drive component (21) fixedly connected to the mounting box (1). The output end of the rotating drive component (21) is fixedly connected to a hydraulic oil pump (22) connected to the mounting box (1). The output end of the hydraulic oil pump (22) is connected to a hydraulic telescopic rod (9) through a hose. A storage battery (23) is slidably connected to the mounting box (1). The output end of the storage battery (23) is electrically connected to the rotating drive component (21) through a wire.

3. A folding electric shear for easy operation in confined spaces according to claim 1, characterized in that, The first transmission mechanism includes a first telescopic drive member (31) fixedly connected to the transmission box (3), and a first transmission rack (32) slidably connected to the output end of the first telescopic drive member (31). A first transmission gear (33) fixedly sleeved with the first mounting shaft (4) is meshed on one side of the first transmission rack (32).

4. A folding electric shear for easy operation in confined spaces according to claim 1, characterized in that, The second transmission mechanism includes a second telescopic drive member (41) fixedly connected to the connecting frame (5), and a second transmission rack (42) slidably connected to the connecting frame (5) at the output end of the second telescopic drive member (41). A second transmission gear (43) fixedly sleeved with the second mounting shaft (6) is meshed on one side of the second transmission rack (42).

5. A folding electric shear for easy operation in confined spaces according to claim 1, characterized in that, The top and bottom of the shearing mounting block (8) are fixedly connected to protective frames (51), and one of the protective frames (51) is provided with a camera mechanism connected to the mounting box (1). The camera mechanism is used to display the position of the shearing mounting block (8).

6. A folding electric shear for easy operation in confined spaces according to claim 5, characterized in that, The camera mechanism includes a camera (52) fixedly connected to the protective frame (51), and the output end of the camera (52) is electrically connected to a display screen (53) fixedly connected to the mounting box (1) via a wire.

7. A folding electric shear for easy operation in confined spaces according to claim 1, characterized in that, A fixed frame (61) is fixedly connected to one side of the shearing blade (11). A limit block (62) is fixedly connected inside the fixed frame (61). A crushing pliers (63) is slidably connected to the limit block (62). A fixing bolt (64) that is threadedly connected to the crushing pliers (63) is threadedly connected to the fixed frame (61). A pressing block (65) is fixedly connected to the top of the fixed frame (61).

8. A folding electric shear for easy operation in confined spaces according to claim 1, characterized in that, A carrying handle is fixedly connected to the outer surface of the mounting box (1).

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