A backpack hydraulic shears

Abstract

This utility model discloses a backpack-type hydraulic shear, relating to the field of shearing technology, comprising: a fixed plate; a sliding plate; a backpack; two shoulder straps; a chest pocket; and a waist belt. The sliding plate has a sliding state and a locked state on the fixed plate. In the sliding state, it can buffer the weight of the backpack, reducing the pressure on the user. In the locked state, it can lock the position of the backpack, thereby facilitating demolition operations. By setting a suspension mechanism, the backpack has both sliding and locked states on the fixed plate. In the sliding state, the backpack can reciprocate up and down on the fixed plate, and the suspension mechanism buffers the weight of the backpack, thereby reducing the weight on the user and easing the burden. In the locked state, the position of the backpack can be locked to prevent the backpack from moving on the fixed plate, thereby preventing the pulling of the connecting pipe used to connect the demolition tools and affecting the demolition operation.

Description

Technical Field

[0001] This utility model relates to the field of shearing technology, specifically a backpack hydraulic shear. Background Technology

[0002] Hydraulic shears are demolition and rescue tools driven by hydraulics. They achieve their cutting function by controlling the opening and closing of the blades through a piston rod. The main body is made of high-strength steel and aerospace-grade aluminum alloy, equipped with hot-rolled steel forged blades, combining lightweight and high strength. This tool is mainly used in scenarios such as traffic accidents, fires, and earthquakes, and can cut through vehicle shells, reinforcing bars, security doors and windows, and other metal or non-metal structures. It is a core piece of equipment for fire departments, traffic police, and emergency rescue departments.

[0003] For example, the publication number is CN222661696U, the publication date is March 25, 2025, and the title is "A Backpack-Type Electric Demolition Tool Set", which includes a main body, a miniature compressor fixed inside the main body, and a drum rotatably connected above the miniature compressor inside the main body.

[0004] In the aforementioned patent, when the user walks, the force of the backpack dropping with each step is "hard-transmitted" to the user's shoulders through the pressure of the shoulder straps, which reduces carrying comfort and makes the user more prone to fatigue.

[0005] For example, publication number CN222129619U, publication date December 10, 2024, titled "A Multi-purpose Deceleration Backpack Module", includes a bag body, shoulder straps, and a suspension mechanism. The bag body and shoulder straps are respectively connected to the front and back sides of the suspension mechanism and are detachably connected to the suspension mechanism. The suspension mechanism consists of a back plate, a floating plate, and an elastic component. The back plate and the floating plate have an opening in the middle and are slidably connected. The elastic component is fixed to the back plate, and its end is fixedly connected to the floating plate. The back plate is also provided with a reinforcing rib in the middle. The floating plate is provided with a set of rolling wheels located on both sides of the reinforcing rib in the middle. The back plate and the floating plate are also provided with limiting components to prevent detachment on both sides. The back plate and the floating plate are provided with shoulder strap buckles for connecting the bag body or shoulder straps on both the left and right sides.

[0006] Although the aforementioned patent cushions the weight of the backpack by having it float up and down, this is only beneficial when the user is walking. During demolition work, if the backpack cannot be locked in place, the rise and fall of the backpack will pull on the connecting pipes used to connect the demolition tools, affecting the demolition work. Utility Model Content

[0007] The purpose of this invention is to provide a backpack hydraulic shear to address the shortcomings of the prior art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a backpack hydraulic shear, comprising:

[0009] Fixing plate;

[0010] A sliding plate that is slidably connected to a fixed plate;

[0011] The backpack is fixedly connected to the sliding plate;

[0012] Two shoulder straps are fixedly connected to the mounting plate;

[0013] The chest pocket is securely connected between the two shoulder straps;

[0014] The belt is fixedly connected to the fixing plate;

[0015] The sliding plate has both a sliding state and a locked state on the fixed plate;

[0016] In sliding mode: It can cushion the weight of the backpack, reducing the pressure on the user;

[0017] In locked state: The backpack's position can be locked, facilitating demolition operations.

[0018] Furthermore, a sliding rod is fixedly connected to the fixed plate, and a sliding sleeve is fixedly connected to the sliding plate, with the sliding sleeve slidably mounted on the sliding rod.

[0019] Furthermore, it also includes a suspension mechanism, which includes a round rod fixedly connected to a sliding plate, two levers rotatably connected to the fixed plate, the round rod simultaneously sliding against the two levers, a lifting rod vertically slidably connected to the fixed plate, the two ends of the lifting rod being slidably connected to the two levers respectively, and a first elastic element being provided between the lifting rod and the fixed plate.

[0020] Furthermore, both levers are provided with a first groove, and the round rod is simultaneously slidably connected between the two first grooves.

[0021] Furthermore, both ends of the lifting rod are fixedly connected to crossbars, and each of the two levers is provided with a second sliding groove. The two crossbars are slidably connected in the two second sliding grooves respectively.

[0022] Furthermore, the two crossbars are located on both sides of the lifting rod.

[0023] Furthermore, it also includes a locking mechanism, which includes an abutment frame that is laterally slidably connected to a fixed plate, an abutment rod that is fixedly connected to a lifting rod, the abutment rod slidingly abutting against the abutment frame, a rack that is fixedly connected to the abutment frame, a locking rod that is slidably connected to the fixed plate, a locking block that is fixedly connected to the locking rod, the locking block engaging with the rack, a second elastic element between the locking rod and the fixed plate, and a limit rod that is rotatably connected to the fixed plate.

[0024] Furthermore, a torsion spring is provided between the limiting rod and the fixing plate.

[0025] Compared with the prior art, the present invention provides a backpack hydraulic shear:

[0026] 1. By setting up a suspension mechanism, the backpack can have a sliding state and a locked state on the fixed plate. In the sliding state, the backpack can move up and down back and forth on the fixed plate, and the suspension mechanism buffers the weight of the backpack, thereby reducing the weight borne by the user and reducing the burden on the user. In the locked state, the position of the backpack can be locked to prevent the backpack from moving on the fixed plate, thereby preventing the connecting pipe used to connect the demolition tools from being pulled and affecting the demolition operation.

[0027] 2. By setting a locking mechanism, when the demolition operation is in progress, the locking rod is pulled to move, causing the locking block to move synchronously. The second elastic element deforms and extends, thereby locking the locking block with the rack. Then, the limiting rod is rotated so that the end of the limiting rod abuts against the locking rod, preventing the locking rod from resetting under the elastic force of the second elastic element. Attached Figure Description

[0028] 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0029] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0030] Figure 2 A schematic diagram of the overall structure from a frontal view, provided for an embodiment of this utility model;

[0031] Figure 3 A schematic diagram of the overall structure from a side view angle provided for an embodiment of this utility model;

[0032] Figure 4 This is a schematic diagram of the fixed plate, sliding plate, and backpack structure provided in an embodiment of the present utility model;

[0033] Figure 5 This is a schematic diagram of the sliding method of the fixed plate and the sliding plate provided in the embodiment of this utility model;

[0034] Figure 6 A schematic diagram of the suspension mechanism provided in an embodiment of this utility model;

[0035] Figure 7 This is a schematic diagram of the locking mechanism provided in an embodiment of the present utility model.

[0036] Explanation of reference numerals in the attached drawings: 1. Fixed plate; 11. Sliding rod; 2. Sliding plate; 21. Sliding sleeve; 3. Backpack; 4. Shoulder strap; 5. Chest pocket; 6. Waist belt; 7. Suspension mechanism; 71. Round rod; 72. Lever; 721. First slide groove; 722. Second slide groove; 73. Lifting rod; 74. Crossbar; 75. First elastic element; 8. Locking mechanism; 81. Abutment frame; 82. Abutment rod; 83. Rack; 84. Locking rod; 85. Locking block; 86. Second elastic element; 87. Limiting rod. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0038] Please see Figure 1-7 This utility model provides a backpack-type hydraulic shear, comprising: a fixed plate 1; a sliding plate 2 slidably connected to the fixed plate 1; specifically, the sliding plate 2 and the fixed plate 1 are connected as follows: a sliding rod 11 is fixedly connected to the fixed plate 1, and a sliding sleeve 21 is fixedly connected to the sliding plate 2, the sliding sleeve 21 being slidably fitted onto the sliding rod 11; a backpack 3 fixedly connected to the sliding plate 2; two shoulder straps 4 fixedly connected to the fixed plate 1; a chest pocket 5 fixedly connected between the two shoulder straps 4; and a waist belt 6 fixedly connected to the fixed plate 1; the sliding plate 2 has a sliding state and a locked state on the fixed plate 1; in the sliding state, it can buffer the weight of the backpack 3, reducing the pressure on the user; in the locked state, it can lock the position of the backpack 3, thereby facilitating the demolition operation.

[0039] In this embodiment, a suspension mechanism 7 is also included, comprising a round rod 71 fixedly connected to a sliding plate 2, and two levers 72 rotatably connected to a fixed plate 1. The round rod 71 slides against the two levers 72 simultaneously. Specifically, each lever 72 has a first groove 721, and the round rod 71 slides between the two first grooves 721. A lifting rod 73 is vertically slidably connected to the fixed plate 1. Specifically, the lifting rod 73 is T-shaped. Both ends of the lifting rod 73 are slidably connected to the two levers 72. Specifically, both ends of the lifting rod 73 are fixedly connected to crossbars 74, and each lever 72 has a second groove 722, with the two crossbars 74 correspondingly slidably connected within the two second grooves 722. It should be noted that the lifting rod 73 is located between the two crossbars 74, and the two crossbars 74 are located on both sides of the lifting rod 73. A first elastic element 75 is provided between the lifting rod 73 and the fixed plate 1; wherein, the first elastic element 75 is a compression spring.

[0040] Preferably, it further includes a locking mechanism 8 for locking the position of the backpack 3; specifically, it includes an abutment frame 81 that is laterally slidably connected to the fixed plate 1; the abutment frame 81 is inclined; an abutment rod 82 is fixedly connected to the lifting rod 73, the abutment rod 82 slides against the abutment frame 81, a rack 83 is fixedly connected to the abutment frame 81, and a locking rod 84 is slidably connected to the fixed plate 1; the locking rod 84 passes through and extends to the outside of the fixed plate 1; a locking block 85 is fixedly connected to the locking rod 84, the locking block 85 engages with the rack 83, and a second elastic element 86 is provided between the locking rod 84 and the fixed plate 1; the second elastic element 86 is a tension spring; a limit rod 87 is rotatably connected to the fixed plate 1; the limit rod 87 is L-shaped; and a torsion spring is provided between the limit rod 87 and the fixed plate 1.

[0041] Working principle: During use, when no demolition work is being carried out, the user carries the backpack hydraulic shearer while walking. The backpack 3 will rise and fall repeatedly during the walking process. Specifically, under the action of gravity, the backpack 3 drives the round rod 71 to descend synchronously. During the next step, the round rod 71 slides against the first slide groove 721, causing the two levers 72 to rotate and move closer to each other. During the rotation of the two levers 72, the second slide groove 722 slides against the crossbar 74, causing the lifting rod 73 to descend vertically and squeeze the first elastic element 75, causing the first elastic element 75 to undergo elastic deformation and contract. The elastic force of the first elastic element 75 buffers the weight of the backpack 3.

[0042] Meanwhile, as the lifting rod 73 descends, the sliding contact between the abutting rod 82 and the abutting frame 81 causes the abutting frame 81 and the rack 83 to move laterally synchronously. At this time, the locking block 85 and the rack 83 are in a disengaged state (because the limiting rod 87 is located outside the locking rod 84, and there is no contact between the limiting rod 87 and the locking rod 84; and the second elastic element 86 does not undergo elastic deformation and is in a contracted state). It should be noted that... Figure 7 The second elastic element 86 shown is in a stretched state.

[0043] During the demolition operation, in order not to affect the demolition work, the position of backpack 3 needs to be locked. At this time, pull the locking rod 84, which will drive the locking block 85 to move synchronously, so that the locking block 85 engages with the rack 83. As the locking rod 84 moves, rotate the limiting rod 87 to deform the torsion spring, so that the end of the limiting rod 87 abuts against the locking rod 84, restricting the second elastic element 86 to elastically reset, thereby locking the position of backpack 3.

[0044] The foregoing description only illustrates certain exemplary embodiments of the present invention. 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 above 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 backpack-type hydraulic shear, characterized in that, include: Fixing plate (1); The sliding plate (2) is slidably connected to the fixed plate (1); Backpack (3), which is fixedly connected to sliding plate (2); Two shoulder straps (4) are fixedly connected to the fixing plate (1); The chest pocket (5) is fixedly connected between the two shoulder straps (4); The belt (6) is fixedly connected to the fixing plate (1); The sliding plate (2) has a sliding state and a locked state on the fixed plate (1); In the sliding state: it can cushion the weight of the backpack (3) and reduce the pressure on the user; In the locked state: the position of the backpack (3) can be locked, which facilitates the demolition operation.

2. The backpack hydraulic shear according to claim 1, characterized in that, A sliding rod (11) is fixedly connected to the fixed plate (1), and a sliding sleeve (21) is fixedly connected to the sliding plate (2). The sliding sleeve (21) is slidably mounted on the sliding rod (11).

3. The backpack hydraulic shear according to claim 1, characterized in that, It also includes a suspension mechanism (7), which includes a round rod (71) fixedly connected to the sliding plate (2), two levers (72) rotatably connected to the fixed plate (1), the round rod (71) slidingly abutting against the two levers (72) at the same time, a lifting rod (73) vertically slidably connected to the fixed plate (1), the two ends of the lifting rod (73) being slidably connected to the two levers (72) respectively, and a first elastic element (75) is provided between the lifting rod (73) and the fixed plate (1).

4. A backpack-type hydraulic shear according to claim 3, characterized in that, Both levers (72) have a first groove (721) and the round rod (71) is slidably connected between the two first grooves (721).

5. A backpack hydraulic shear according to claim 3, characterized in that, Both ends of the lifting rod (73) are fixedly connected with crossbars (74), and the two levers (72) are provided with second sliding grooves (722). The two crossbars (74) are slidably connected in the two second sliding grooves (722) respectively.

6. A backpack hydraulic shear according to claim 5, characterized in that, The two crossbars (74) are located on both sides of the lifting bar (73).

7. A backpack hydraulic shear according to claim 3, characterized in that, It also includes a locking mechanism (8), which includes an abutment frame (81) that is laterally slidably connected to a fixed plate (1), an abutment rod (82) that is fixedly connected to a lifting rod (73), the abutment rod (82) slidingly abutting against the abutment frame (81), a rack (83) that is fixedly connected to the abutment frame (81), a locking rod (84) that is slidably connected to the fixed plate (1), a locking block (85) that is fixedly connected to the locking rod (84), the locking block (85) engaging with the rack (83), a second elastic element (86) that is provided between the locking rod (84) and the fixed plate (1), and a limit rod (87) that is rotatably connected to the fixed plate (1).

8. A backpack hydraulic shear according to claim 7, characterized in that, A torsion spring is provided between the limiting rod (87) and the fixing plate (1).

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