Iron scissors with safety lock catch

Abstract

The utility model provides a pair of iron scissors with a safety lock catch, which relates to the technical field of iron scissors and comprises a mounting cylinder, a fixed scissor head and a movable scissor head are respectively arranged at the top of the mounting cylinder, the fixed scissor head is fixedly connected with the mounting cylinder through a bolt, and the movable scissor head is rotatably connected with one side of the fixed scissor head; according to the iron sheet scissors, an operator drives the movable scissor head to be closed to shear an iron sheet open, more labor is saved for the operator, the shearing strength of the movable scissor head is large, the iron sheet can be sheared open more easily, the fixed scissor head and the movable scissor head are fixed through the lock catch assembly, the fixed scissor head and the movable scissor head are closed together, and therefore the iron sheet can be sheared open more easily. And an operator is prevented from being scratched and stabbed when being taken by the operator, so that the safety performance is improved.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal shears, specifically a sheet metal shear with a safety lock. Background Technology

[0002] Metal cutting shears are designed primarily for trimming or cutting metal sheets, but they can also be used to cut other materials including vinyl, plastic, cloth, canvas, cardboard, etc. Tin shears are similar to ordinary scissors, but they are more powerful and can precisely control the cutting shape. Tin shears can vary in appearance and usage. When using tin shears, the operator first holds the left and right handles, opens the blades, places the piece of metal to be cut between the two blades, and then forcefully closes the two handles to close the blades, thus achieving the cutting purpose. However, existing tin shears require the operator to apply considerable force when cutting metal, making operation relatively strenuous. Furthermore, when not in use, the two blades remain in a movable state. If the two blades are in an open state, they may cut or puncture the operator when handling, resulting in lower safety. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a sheet metal cutter with a safety lock. The operator drives the movable scissor head to cut the sheet metal, which makes it easier for the operator. The movable scissor head has a strong cutting force and can cut the sheet metal more easily. Secondly, the locking assembly fixes the scissor head and the movable scissor head together, so that the fixed scissor head and the movable scissor head are closed together, preventing the operator from picking it up and scratching or stabbing the operator, thus improving the safety performance.

[0004] The technical problem to be solved by this utility model is achieved by the following technical solution:

[0005] A sheet metal cutter with a safety lock includes: a mounting cylinder, the top of which is respectively provided with a fixed scissor head and a movable scissor head, the fixed scissor head being fixedly connected to the mounting cylinder by bolts, and the movable scissor head being rotatably connected to one side of the fixed scissor head;

[0006] A force-applying component is disposed inside the mounting cylinder and is used to assist in driving the movable shear head to cut. The force-applying component includes: a transmission gear, a driven gear, a deflection block, a force-applying handle, and a driving gear.

[0007] A locking assembly is provided outside the mounting cylinder and is used to lock the movable scissor head. The locking assembly includes: a screw seat, a safety lock, a screw, a slot, a locking block, and a magnetic piece.

[0008] Furthermore, a transmission gear is rotatably connected inside the mounting cylinder near the movable scissor head, a driven gear is fixedly connected to the rotating shaft on one side of the movable scissor head, a deflection block is rotatably connected to one side of the inner wall of the mounting cylinder, a force application handle is fixedly connected to the bottom end of the deflection block, and a driving gear is fixedly installed on the rotating shaft of the deflection block.

[0009] Furthermore, a screw seat is fixedly connected to one side of the fixed scissor head. One end of the screw seat passes through the mounting cylinder and extends to the outside. A safety lock is rotatably connected to a section derived from the screw seat. A screw is threadedly connected to one end of the screw seat. A slot is opened on the safety lock. The rotating shaft of the force application handle on the side away from the drive gear extends to the outside and is fixedly connected to a locking block. The locking block is arranged in a quadrilateral structure. A magnet is provided on one side of the mounting cylinder.

[0010] Furthermore, the transmission gear is connected to the driven gear and the driving gear respectively, and the transmission ratios between the transmission gear, the driven gear and the driving gear are matched.

[0011] Furthermore, the bottom of the mounting cylinder is provided with a fixed handle, the top of the fixed handle is connected to the fixed scissor head, and both the fixed handle and the force application handle are covered with rubber protective sleeves.

[0012] Furthermore, the two rubber protective sleeves are provided with blocks at the top and bottom, and the two blocks on both sides are symmetrically arranged. Restriction blocks are fixedly connected to the opposite side of the two rubber protective sleeves near the bottom.

[0013] Furthermore, the top of the mounting cylinder is provided with a movable groove a to accommodate the movement of the movable scissor head, and the bottom of the mounting cylinder is provided with a movable groove b to accommodate the movement of the force-applying handle.

[0014] The beneficial effects of this utility model are:

[0015] The advantage of this utility model is that the operator drives the movable scissor head to cut the sheet metal, which makes it easier for the operator to cut the sheet metal. The movable scissor head has a large cutting force and can cut the sheet metal more easily.

[0016] Secondly, the locking assembly secures the scissor head and the movable scissor head together, preventing the operator from handling them and causing cuts or punctures, thus improving safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the transmission gear connection of this utility model.

[0020] Figure 4 This is a partial structural diagram of the deflection block of this utility model.

[0021] Figures 1-4 In the middle: 1. Mounting cylinder; 11. Fixed scissor head; 12. Movable scissor head; 2. Transmission gear; 21. Driven gear; 22. Deflection block; 23. Force application handle; 24. Drive gear; 3. Fixed handle; 31. Rubber protective sleeve; 32. Stop block; 33. Limiting block; 4. Screw seat; 41. Safety lock; 42. Screw; 43. Slot; 44. Locking block; 45. Magnetic piece; 5. Moving slot a; 51. Moving slot b. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] like Figures 1-4 As shown, a sheet metal cutter with a safety lock includes: a mounting cylinder 1, with a fixed scissor head 11 and a movable scissor head 12 respectively provided on the top of the mounting cylinder 1. The fixed scissor head 11 is fixedly connected to the mounting cylinder 1 by bolts, and the movable scissor head 12 is rotatably connected to one side of the fixed scissor head 11; a force-applying component, which is located inside the mounting cylinder 1 and is used to assist in driving the movable scissor head 12 to cut; and a locking component, which is located outside the mounting cylinder 1 and is used to lock the movable scissor head 12.

[0026] When in use, with the fixed scissor head 11 facing upwards and the movable scissor head 12 facing downwards, place the sheet metal between the fixed scissor head 11 and the movable scissor head 12. The force-applying component assists the operator in driving the movable scissor head 12 to cut the sheet metal, making it easier for the operator. The movable scissor head 12 has a strong cutting force, making it easier to cut the sheet metal. After use, close the fixed scissor head 11 and the movable scissor head 12, and then use the locking component to fix the movable scissor head 12 in place to prevent injury from the fixed scissor head 11 and the movable scissor head 12 when they are open, thus improving safety.

[0027] Example 2

[0028] Based on Embodiment 1, the force-applying component includes: a transmission gear 2, a driven gear 21, a deflection block 22, a force-applying handle 23, and a driving gear 24. The transmission gear 2 is rotatably connected to the side of the mounting cylinder 1 near the movable scissor head 12. The driven gear 21 is fixedly connected to the rotating shaft on one side of the movable scissor head 12. The deflection block 22 is rotatably connected to one side of the inner wall of the mounting cylinder 1. The force-applying handle 23 is fixedly connected to the bottom end of the deflection block 22. The driving gear 24 is fixedly installed on the rotating shaft of the deflection block 22. The transmission gear 2 is connected to the driven gear 21 and the driving gear 24 respectively, and the transmission ratios between the transmission gear 2, the driven gear 21, and the driving gear 24 are matched. The top of the mounting cylinder 1 has a moving groove a5 that allows the movable scissor head 12 to move, and the bottom of the mounting cylinder 1 has a moving groove b51 that allows the force-applying handle 23 to move.

[0029] When in use, pressing the force application handle 23 causes the deflection block 22 to rotate. The force application handle 23 moves along the moving groove b51, which limits the range of motion of the force application handle 23. When the deflection block 22 rotates, it drives the drive gear 24 to rotate clockwise. When the drive gear 24 rotates, it meshes with the transmission gear 2, which in turn drives the transmission gear 2 to rotate counterclockwise. The transmission gear 2 rotates and meshes with the driven gear 21, which in turn drives the driven gear 21 to rotate clockwise, causing the movable scissor head 12 to perform a cutting action. The movable scissor head 12 moves within the moving groove a5 and works with the fixed scissor head 11 to cut the sheet metal. Because the transmission ratios between the transmission gear 2, the driven gear 21, and the drive gear 24 are matched, the drive gear 24 drives the transmission gear 2 to rotate rapidly. This causes the force application handle 23 to reciprocate, which in turn drives the movable scissor head 12 to open and close for cutting. The transmission gear 2 drives the transmission gear 2 to rotate, increasing the torque and allowing the movable scissor head 12 to cut the sheet metal more effortlessly, making it easier for the operator to use.

[0030] The bottom of the installation cylinder 1 is provided with a fixed handle 3. The top of the fixed handle 3 is connected to the fixed scissor head 11. Both the fixed handle 3 and the force application handle 23 are covered with rubber protective sleeves 31. The top and bottom of the two rubber protective sleeves 31 are respectively provided with a stop block 32, and the two stop blocks 32 on both sides are symmetrically arranged. The two rubber protective sleeves 31 are respectively fixedly connected to a limiting block 33 near the bottom on the opposite side.

[0031] During operation, the force application handle 23 can be controlled to move and fix the handle 3 to keep it in a fixed state. The rubber protective cover 31 can protect the hand and prevent slipping. The stop block 32 can prevent the hand from sliding back and forth. The limiting block 33 can limit the distance between the force application handle 23 and the fixed handle 3 to avoid pinching the hand.

[0032] Example 3

[0033] Based on Embodiment 1, the locking assembly includes: a screw seat 4, a safety lock 41, a screw 42, a slot 43, a locking block 44, and a magnetic piece 45. The screw seat 4 is fixedly connected to one side of the fixed scissor head 11. One end of the screw seat 4 passes through the mounting cylinder 1 and extends to the outside. The external section derived from the screw seat 4 is rotatably connected to the safety lock 41. One end of the screw seat 4 is threadedly connected to the screw 42. The safety lock 41 has a slot 43. The rotating shaft of the force application handle 23 on the side away from the drive gear 24 extends to the outside and is fixedly connected to the locking block 44. The locking block 44 is arranged in a quadrilateral structure. A magnetic piece 45 is provided on one side of the mounting cylinder 1.

[0034] After use, the fixed scissor head 11 and the movable scissor head 12 are engaged. Then, the safety lock 41 is rotated counterclockwise, causing it to rotate around the screw seat 4, separating it from the magnetic piece 45. This controls the safety lock 41 to engage the locking block 44. Since the fixed scissor head 11 and the movable scissor head 12 are engaged, the two sides of the locking block 44 are flush with the slot 43, allowing the slot 43 to fit over the locking block 44 and hold it in place, preventing the deflection block 22 from moving. This keeps the fixed scissor head 11 and the movable scissor head 12 engaged. When it is necessary to release the engagement, the safety lock 41 is rotated clockwise, separating it from the locking block 44 and allowing it to engage with the magnetic piece 45, thus attracting the safety lock 41.

[0035] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0036] The foregoing has provided a detailed description of a tin snip with a safety lock provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A type of sheet metal shears with a safety lock, characterized in that, include: The mounting cylinder (1) has a fixed scissor head (11) and a movable scissor head (12) respectively on its top. The fixed scissor head (11) is fixedly connected to the mounting cylinder (1) by bolts, and the movable scissor head (12) is rotatably connected to one side of the fixed scissor head (11). The force-applying component is located inside the mounting cylinder (1) and is used to assist in driving the movable scissor head (12) to cut. The force-applying component includes: a transmission gear (2), a driven gear (21), a deflection block (22), a force-applying handle (23), and a driving gear (24). The locking assembly is located outside the mounting cylinder (1) and is used to lock the movable scissor head (12). The locking assembly includes: screw seat (4), safety lock (41), screw (42), slot (43), locking block (44) and magnet (45).

2. The sheet metal shears with a safety lock according to claim 1, characterized in that, A transmission gear (2) is rotatably connected to the side of the mounting cylinder (1) near the movable scissor head (12). A driven gear (21) is fixedly connected to the rotating shaft on one side of the movable scissor head (12). A deflection block (22) is rotatably connected to one side of the inner wall of the mounting cylinder (1). A force application handle (23) is fixedly connected to the bottom end of the deflection block (22). A drive gear (24) is fixedly installed on the rotating shaft of the deflection block (22).

3. The sheet metal shears with a safety lock according to claim 1, characterized in that, A screw seat (4) is fixedly connected to one side of the fixed scissor head (11). One end of the screw seat (4) passes through the mounting cylinder (1) and extends to the outside. A safety lock (41) is rotatably connected to a section derived from the screw seat (4). A screw (42) is threadedly connected to one end of the screw seat (4). A slot (43) is opened on the safety lock (41). The rotation axis of the force application handle (23) on the side away from the drive gear (24) extends to the outside and is fixedly connected to a locking block (44). The locking block (44) is arranged in a quadrilateral structure. A magnet (45) is provided on one side of the mounting cylinder (1).

4. The sheet metal shears with a safety lock according to claim 1, characterized in that, The transmission gear (2) is connected to the driven gear (21) and the driving gear (24) respectively, and the transmission ratios between the transmission gear (2), the driven gear (21) and the driving gear (24) are matched.

5. The sheet metal shears with a safety lock according to claim 1, characterized in that, The bottom of the mounting cylinder (1) is provided with a fixed handle (3), the top of the fixed handle (3) is connected to the fixed scissor head (11), and both the fixed handle (3) and the force application handle (23) are covered with rubber protective sleeves (31).

6. The sheet metal shears with a safety lock according to claim 5, characterized in that, The two rubber protective sleeves (31) are provided with a stop block (32) at the top and bottom respectively, and the two stop blocks (32) on both sides are symmetrically arranged. The two rubber protective sleeves (31) are respectively fixedly connected to a limiting block (33) near the bottom on opposite sides.

7. The sheet metal shears with a safety lock according to claim 1, characterized in that, The top of the mounting cylinder (1) is provided with a movable groove a (5) for accommodating the movable scissor head (12), and the bottom of the mounting cylinder (1) is provided with a movable groove b (51) for accommodating the force application handle (23).

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