Double-locking art knife

Abstract

The utility model discloses a double locking art knife relates to art knife field, including shell, moving part and locking subassembly, one end of shell is clamped and connected with the stop block, and one side of stop block is welded with the clamping plate, and the inside of shell is clamped and slid connection with blade, and the surface of blade is equipped with the groove, and the locking subassembly is fixed in the groove. The moving part is arranged on one side of the blade, and the moving part is connected with the shell in a clamped and sliding mode. According to the double-locking art knife, by arranging the connecting assembly and the locking assembly, in the use process of the art knife, structural connection is tight, the situation that a blade is loosened in the follow-up use process of the art knife is avoided, follow-up workers conveniently replace and maintain the blade, meanwhile, the art knife is provided with a double-locking structure, and the practicability is high. And the art knife is more stable during use, the situation that the blade is loosened in the subsequent moving process is avoided, the use process of the art knife is safer, and a worker can use the art knife conveniently.

Description

Technical Field

[0001] This utility model relates to the field of utility knives, specifically a double-locking utility knife. Background Technology

[0002] A utility knife is a type of hand knife primarily used for cutting and carving. Also known as a carving knife or wallpaper knife, it is mainly used for cutting, carving, and dotting operations, and is especially suitable for processing softer materials such as paper and soft wood.

[0003] However, current utility knives still have some shortcomings. For example, a utility knife with application number 202322171326.8 that is easy to adjust does not fully consider the double locking structure. If the double locking structure is not fully considered during the use of the utility knife, the blade may easily retract or extend, or even fall off, which cannot guarantee the safety of the utility knife during use and makes it inconvenient for workers to use the utility knife. Utility Model Content

[0004] The purpose of this invention is to provide a double-locking utility knife to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-locking utility knife, comprising a shell, a movable component, and a locking assembly. One end of the shell is engaged with a blocking block, and a locking plate is welded to one side of the blocking block. A blade is engaged and slidably connected to the inner side of the shell, and a groove is formed on the surface of the blade. The movable component is disposed on one side of the blade and is engaged and slidably connected to the shell. A connecting assembly is provided between the movable component and the blade, and the connecting assembly includes a support plate, a locking frame, a first magnetic block, a rotating plate, and a second magnetic block. The locking assembly is disposed inside the movable component and includes a locking component, a fixing rod, a return spring, a connecting screw, a limiting ring, and a rotating disk.

[0006] Furthermore, a slot is provided on one side of the blocking block, and a locking member is provided on the front side of the locking plate. The right side of the locking member is welded to the blocking block, and the left side of the locking member is engaged with the end of the housing.

[0007] Furthermore, the support plate is welded to one side of the moving part, and the support plate is slidably connected to the inside of the housing, and a locking frame is welded to the center of one side of the support plate.

[0008] Furthermore, one end of the blade is engaged with the locking frame, and the surface of the blade is flush with the surface of the locking frame, and a first magnetic block is fixedly connected to the inner side of the locking frame.

[0009] Furthermore, a rotating plate is rotatably connected to one side of the moving part via a damping shaft, and a second magnetic block is fixedly connected to one side surface of the rotating plate, and the second magnetic block is magnetically connected to the first magnetic block.

[0010] Furthermore, the locking member is slidably connected to the upper and lower sides of the moving member, and the inner sides of the housing are provided with locking grooves. The locking member is engaged with the housing through the locking grooves, and the two sides of the locking member are connected with fixing rods.

[0011] Furthermore, the locking member has return springs on both sides below it, and the return springs are located on the outside of the fixed rod. The other end of the moving member is rotatably connected to a connecting screw, and one end of the connecting screw passes through the moving member and engages with the housing.

[0012] Furthermore, a limiting ring is fixedly connected to the outer wall of the middle section of the connecting screw, and the limiting ring is located inside the moving part. A rotating disk is welded to the other end of the connecting screw, and a protruding marking block is fixedly connected to the surface of the rotating disk.

[0013] This utility model provides a double-locking utility knife, which has the following beneficial effects:

[0014] 1. This utility model is equipped with a connecting component. During the use of the utility knife, one end of the blade is engaged with the locking frame welded to the center of one side of the support plate. Then, the rotating plate connected to one side of the moving part via a damping shaft is rotated, so that the second magnetic block fixedly connected to one side of the rotating plate is magnetically connected to the first magnetic block fixedly connected to the inner side of the locking frame, thereby completing the limiting installation of the blade. The structure is simple and the connection is tight, preventing the blade from becoming loose during subsequent use of the utility knife. It also facilitates the replacement and maintenance of the blade by the staff and makes it convenient for the staff to use the utility knife.

[0015] 2. This utility model is equipped with a locking component. During the use of the utility knife, under the elastic force of the return spring, the locking component engages with the locking grooves on both sides of the inner side of the housing, thereby achieving the first locking of the moving part. Furthermore, by rotating the rotating disk, the end of the connecting screw gradually engages with the inner side of the housing, thereby achieving the second locking of the moving part. This gives the utility knife a double locking structure, making it more stable during use and preventing the blade from loosening during subsequent movement. This makes the use of the utility knife safer and more convenient for workers. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the appearance of a double-locking utility knife according to the present invention;

[0017] Figure 2 This is a three-dimensional structural disassembly diagram of a double-locking utility knife according to this utility model;

[0018] Figure 3 This utility model relates to a double-locking utility knife. Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0019] Figure 4 This is a three-dimensional cross-sectional view of the moving part - the protruding label block - of a double-locking utility knife according to this utility model.

[0020] In the diagram: 1. Housing; 2. Blocking block; 3. Engaging plate; 4. Engaging component; 5. Blade; 6. Moving component; 7. Connecting assembly; 701. Support plate; 702. Engaging frame; 703. First magnetic block; 704. Rotating plate; 705. Second magnetic block; 8. Locking assembly; 801. Locking component; 802. Fixing rod; 803. Return spring; 804. Connecting screw; 805. Limiting ring; 806. Rotating disk; 9. Protruding marking block. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figures 1-3 As shown, a double-locking utility knife includes a housing 1, a movable part 6, and a locking assembly 8. A blocking block 2 is engaged with one end of the housing 1, and a locking plate 3 is welded to one side of the blocking block 2. A slot is formed on one side of the blocking block 2, and a locking element 4 is provided on the front side of the locking plate 3. The right side of the locking element 4 is welded to the blocking block 2, and the left side of the locking element 4 is engaged with the ends of the housing 1. A blade 5 is slidably engaged with the inner side of the housing 1, and a groove is formed on the surface of the blade 5. The movable part 6 is disposed on one side of the blade 5 and is engaged and slidably connected to the housing 1. A connecting assembly 7 is provided between the movable part 6 and the blade 5, and the connecting assembly 7 includes a support plate 701 and a locking mechanism 8. The moving part 6 has a frame 702, a first magnetic block 703, a rotating plate 704, and a second magnetic block 705. A support plate 701 is welded to one side of the moving part 6 and is slidably connected to the inner side of the housing 1. A frame 702 is welded to the center of one side of the support plate 701. One end of the blade 5 is engaged with the frame 702 and the surface of the blade 5 is flush with the surface of the frame 702. The first magnetic block 703 is fixedly connected to the inner side of the frame 702. A rotating plate 704 is rotatably connected to one side of the moving part 6 via a damping shaft. A second magnetic block 705 is fixedly connected to one side of the rotating plate 704 and is magnetically connected to the first magnetic block 703.

[0023] The specific operation is as follows: The worker inserts the movable part 6 into the inside of the housing 1 and moves the movable part 6 to one end of the housing 1. Then, the worker uses the locking plate 3 and the locking part 4 to lock the blocking block 2 to the other end of the housing 1. After that, the worker uses the connecting component 7 to install the blade 5, locking one end of the blade 5 to the locking frame 702 welded to the center of one side of the support plate 701. Then, the worker rotates the rotating plate 704, which is rotatably connected to one side of the movable part 6 through the damping shaft, so that the second magnetic block 705, which is fixedly connected to one side of the rotating plate 704, and the first magnetic block 703, which is fixedly connected to the inside of the locking frame 702, are magnetically connected, thereby completing the limiting installation of the blade 5. After that, the worker moves the movable part 6 to the other end of the housing 1 again, so that the blade 5 is retracted into the housing 1, making it convenient for the worker to use the utility knife.

[0024] like Figure 1 , Figure 2 and Figure 4 As shown, the locking assembly 8 is disposed inside the moving part 6, and the locking assembly 8 includes a locking member 801, a fixing rod 802, a return spring 803, a connecting screw 804, a limiting ring 805, and a rotating disk 806. The locking member 801 is engaged and slidably connected to the upper and lower sides of the moving part 6, and engaging grooves are provided on both sides of the inner side of the housing 1. The locking member 801 is engaged and connected to the housing 1 through the engaging grooves. The fixing rod 802 is connected through both sides of the locking member 801, and the lower sides of the locking member 801 are provided with... A reset spring 803 is provided on the outside of the fixed rod 802. A connecting screw 804 is rotatably connected to the center of the other end of the moving part 6. One end of the connecting screw 804 passes through the moving part 6 and engages with the housing 1. A limit ring 805 is fixedly connected to the outer wall of the middle section of the connecting screw 804. The limit ring 805 is provided inside the moving part 6. A rotating disk 806 is welded to the other end of the connecting screw 804. A protruding marking block 9 is fixedly connected to the surface of the rotating disk 806.

[0025] The specific operation is as follows: During the movement of the movable part 6, the locking component 8 provided inside the movable part 6 can lock the position of the movable part 6. As the movable part 6 moves, the locking components 801, which are engaged on its upper and lower sides, are blocked by the housing 1 and gradually move inward to the inside of the movable part 6, pressing the return spring 803 provided on the outside of the fixing rod 802. When the locking component 801 moves to the appropriate position, under the elastic force of the return spring 803, the locking component 801 extends out from the inside of the movable part 6 and opens with the two sides of the inside of the housing 1. The locking groove is engaged to achieve the first locking of the moving part 6. Then, the operator rotates the rotating disk 806, causing the protruding marking block 9 fixedly connected to the surface of the rotating disk 806 to rotate at a right angle. This causes the connecting screw 804 connected to the rotating disk 806 to rotate on one side inside the moving part 6, and the end of the connecting screw 804 gradually penetrates the moving part 6 and engages with the inner side of the housing 1, thus achieving the second locking of the moving part 6. The protruding marking block 9 more clearly indicates the locking status, making it easier for the operator to use the utility knife.

[0026] In summary, this double-locking utility knife, according to Figures 1-4The structure shown illustrates that during the use of the utility knife, the operator first inserts the movable part 6 into the inner side of the housing 1 and moves it to one end of the housing 1. Then, the operator uses the locking plate 3 and locking part 4 to lock the blocking block 2 to the other end of the housing 1. Next, the operator uses the connecting assembly 7 to install the blade 5, locking one end of the blade 5 to the locking frame 702 welded to the center of one side of the support plate 701. Then, the operator rotates the rotating plate 704, which is rotatably connected to one side of the movable part 6 via a damping shaft, causing a magnetic connection between the second magnetic block 705 fixedly connected to one side of the rotating plate 704 and the first magnetic block 703 fixedly connected to the inner side of the locking frame 702, thus completing the limiting installation of the blade 5. Afterward, the operator moves the movable part 6 to the other end of the housing 1, causing the blade 5 to retract into the housing 1. Furthermore, during the movement of the movable part 6, the locking assembly 8 provided inside the movable part 6 can lock the position of the movable part 6. In the first stage of the process, as the moving part 6 moves, the locking parts 801, which are engaged on its upper and lower sides, are blocked by the housing 1 and gradually move inward to the inside of the moving part 6, pressing the return spring 803 on the outside of the fixing rod 802. When the locking part 801 moves to the appropriate position, under the elastic force of the return spring 803, the locking part 801 extends out from the inside of the moving part 6 and engages with the engaging grooves on both sides of the inside of the housing 1, thus achieving the first locking of the moving part 6. Afterward, the operator rotates the rotating disk 806, causing the protruding marking block 9 fixedly connected to the surface of the rotating disk 806 to rotate at a right angle, causing the connecting screw 804 connected to the rotating disk 806 to rotate on the inside side of the moving part 6, and the end of the connecting screw 804 gradually penetrates the moving part 6 and engages with the inside of the housing 1, thus achieving the second locking of the moving part 6. The setting of the protruding marking block 9 more clearly indicates the locking status, making it convenient for the operator to use the utility knife.

[0027] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A double locking utility knife comprising a housing (1), a moving piece (6) and a locking assembly (8), characterized in that, One end of the housing (1) is engaged with a blocking block (2), and a locking plate (3) is welded to one side of the blocking block (2). A blade (5) is engaged and slidably connected to the inner side of the housing (1), and a groove is provided on the surface of the blade (5). The moving part (6) is located on one side of the blade (5), and the moving part (6) is engaged and slidably connected to the housing (1). A connecting assembly (7) is provided between the moving part (6) and the blade (5). The connecting assembly (7) includes a support plate (701), a locking frame (702), a first magnetic block (703), a rotating plate (704), and a second magnetic block (705). The locking assembly (8) is located inside the moving part (6), and the locking assembly (8) includes a locking part (801), a fixing rod (802), a return spring (803), a connecting screw (804), a limiting ring (805), and a rotating disk (806).

2. The dual-lock utility knife of claim 1, wherein, The blocking block (2) has a slot on one side, and the front side of the locking plate (3) is provided with a locking part (4). The right side of the locking part (4) is welded to the blocking block (2), and the left side of the locking part (4) is engaged with the end of the housing (1).

3. The dual-lock utility knife of claim 1, wherein, The support plate (701) is welded to one side of the moving part (6), and the support plate (701) is engaged and slidably connected to the inside of the housing (1), and a locking frame (702) is welded to the center of one side of the support plate (701).

4. A double-locking utility knife according to claim 1, characterized in that, One end of the blade (5) is engaged with the locking frame (702), and the surface of the blade (5) is flush with the surface of the locking frame (702). A first magnetic block (703) is fixedly connected to the inner side of the locking frame (702).

5. The dual-lock utility knife of claim 1, wherein, One side of the movable part (6) is rotatably connected to a rotating plate (704) via a damping shaft, and a second magnetic block (705) is fixedly connected to one side surface of the rotating plate (704), and the second magnetic block (705) is magnetically connected to the first magnetic block (703).

6. The dual-lock utility knife of claim 1, wherein, The locking member (801) is engaged and slidably connected to the upper and lower sides of the moving member (6), and the inner sides of the housing (1) are provided with engagement grooves. The locking member (801) is engaged and connected to the housing (1) through the grooves, and the two sides of the locking member (801) are connected with fixing rods (802).

7. The dual-lock utility knife of claim 1, wherein, The locking member (801) is provided with a return spring (803) on both sides below, and the return spring (803) is located on the outside of the fixed rod (802). The other end of the moving member (6) is rotatably connected to a connecting screw (804), and one end of the connecting screw (804) passes through the moving member (6) and engages with the housing (1).

8. The dual-lock utility knife of claim 1, wherein, A limiting ring (805) is fixedly connected to the outer wall of the middle section of the connecting screw (804), and the limiting ring (805) is located inside the moving part (6). A rotating disk (806) is welded to the other end of the connecting screw (804), and a protruding marking block (9) is fixedly connected to the surface of the rotating disk (806).

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