Cutter fixing structure

Abstract

The utility model belongs to the technical field of cutters, and particularly relates to a cutter mounting and fixing structure which comprises a handle and a cutter head connected with the handle, the cutter head is connected with the handle through a mounting block, the handle is provided with a mounting cavity for fixing the mounting block, the cutter head is provided with a fixing hole, and the fixing hole is provided with a fixing hole. The mounting block comprises a first mounting block and a second mounting block covering the first mounting block, a mounting hole is formed in the first mounting block or the second mounting block, a fixing pin inserted into the mounting hole is arranged on the second mounting block or the first mounting block, and after the first mounting block and the second mounting block are covered, the fixing pin penetrates through the fixing hole to axially fix the tool bit and the mounting blocks; the utility model aims to provide the cutter mounting and fixing structure which is convenient to assemble, high in production efficiency and stable in structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of cutters, and in particular relates to a fixing structure of a cutter. Background Art

[0002] In daily life, knives are indispensable tools. Various types of knives are used in different places and fields, and fruit knives are a must-have tool for every household.

[0003] For example, the applicant's previously filed Chinese utility model patent CN221496142U utilizes a fixed blade head mounted on a mounting block to achieve a modular design for the blade head and handle. The patent also utilizes mounting holes and the mounting block for easy installation. The positioning of the fixing pin within the mounting cavity avoids safety and hygiene issues caused by the exposed fixing pin, improving the overall aesthetics of the product. However, in actual use, installation is inconvenient and inefficient. It is difficult for manufacturers to align the fixing pin with the mounting hole for insertion and fixation, which reduces production efficiency during assembly.

[0004] Therefore, a tool installation and fixing structure that is easy to assemble, has high production efficiency and a stable structure is needed. Summary of the Invention

[0005] In order to overcome the defects in the prior art, the purpose of the present invention is to provide a tool fixing structure that is easy to assemble, has high production efficiency and is structurally stable.

[0006] The purpose of this utility model is achieved in this way:

[0007] A fixing structure for a tool comprises a handle and a cutting head connected to the handle, the cutting head being connected to the handle via a mounting block, the handle being provided with a mounting cavity for fixing the mounting block, the cutting head being provided with a fixing hole, the mounting block comprising a first mounting block and a second mounting block covering the first mounting block, the first mounting block or the second mounting block being provided with a mounting hole, the second mounting block or the first mounting block being provided with a fixing pin inserted into the mounting hole, and after the first mounting block and the second mounting block are covered, the fixing pin is passed through the fixing hole to axially fix the cutting head to the mounting block.

[0008] The utility model is further configured as follows: adjacent tail ends of the mounting block 1 and the mounting block 2 are connected with a connecting belt, and the mounting block 1 and the mounting block 2 are folded relative to the connecting belt.

[0009] The utility model is further configured as follows: the connecting belt includes connecting parts at both ends respectively connected to the mounting block one and the mounting block two, a bending part is provided between the connecting parts, the thickness of the bending part is smaller than the thickness of the connecting part, and the connecting belt is folded at the bending part.

[0010] The utility model is further configured as follows: at least two connecting belts are arranged at intervals, and the connecting belts and the mounting blocks are both made of plastic.

[0011] The utility model is further configured as follows: the handle and the mounting block are fixed by ultrasonic welding.

[0012] The utility model is further configured as follows: a fixing cavity 1 and a fixing cavity 2 are respectively provided on the mounting block 1 and the mounting block 2, and when the mounting block 1 and the mounting block 2 are covered, a fixing cavity for accommodating one end of the cutter head is formed, and the end face of the fixing cavity abuts against the end face of the cutter head.

[0013] The utility model is further configured as follows: at least two groups of mounting holes and fixing pins are provided; and fixing holes corresponding to the mounting holes and fixing pins are provided along the length direction of the cutter head.

[0014] The utility model is further configured as follows: two limiting ribs are axially arranged on the inside of the installation cavity, and the outer peripheries of the installation block one and the installation block two are both provided with limiting grooves adapted to the limiting ribs. The installation block is plugged into the installation cavity, and the limiting grooves are inserted along the limiting ribs.

[0015] The beneficial effects of the present invention compared to the prior art are:

[0016] By dividing the mounting block into a separate mounting block one and a mounting block two, it is convenient for the mounting block to install and fix the cutter head. At the same time, mounting holes and fixing pins are respectively provided on the mounting block one and the mounting block two for convenience in plugging the two together. The fixing pin is directly passed through the fixing hole and fixed to the mounting hole, which facilitates the installation and fixing of the cutter head and improves the installation sales volume. At the same time, the mounting block one and the mounting block two can form a fixing effect on the cutter head after covering each other, and the stability is better.

[0017] The installation block 1 and the installation block 2 can be connected together by setting a connecting belt, which is convenient for production and installation. The installation block 1 and the installation block 2 can be folded over without the need to pick up other objects, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 It is a structural sectional view of the utility model;

[0020] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the mounting block of the utility model Figure 1 ;

[0022] Figure 5 This is a schematic diagram of the structure of the mounting block of the utility model Figure 2 .

[0023] Meaning of the symbols in the figure:

[0024] 1-handle; 11-mounting cavity; 12-limiting rib; 13-step; 2-cutter head; 21-fixing hole;

[0025] 3-Mounting block; 31-Mounting block 1; 32-Mounting block 2; 33-Mounting hole; 34-Fixing pin;

[0026] 35-limiting groove; 36-boss; 37-fixing cavity 1; 38-fixing cavity 2; 39-fixing cavity;

[0027] 4-connecting belt; 41-connecting portion; 42-bending portion. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to specific embodiments of the present invention:

[0029] See also Figures 1 to 5 As shown, a fixing structure of a tool includes a handle 1 and a blade head 2 connected to the handle 1, the blade head 2 is connected to the handle 1 through a mounting block 3, the handle 1 is provided with a mounting cavity 11 for fixing the mounting block 3, the blade head 2 is provided with a fixing hole 21, the mounting block 3 includes a mounting block 1 31 and a mounting block 2 32 covering the mounting block 1 31, the mounting block 1 31 can be provided with a mounting hole 33, the mounting block 2 32 is provided with a fixing pin 34 arranged to be plugged into the mounting hole 33; the mounting block 2 32 can also be provided with a mounting hole 33, the mounting block 1 31 is provided with a fixing pin 34 arranged to be plugged into the mounting hole 33; after the mounting block 1 31 and the mounting block 2 32 are covered, the fixing pin 34 is passed through The cutter head 2 is axially fixed to the mounting block through the fixing hole 21, that is, during installation, the fixing pin 34 is first passed through the fixing hole 21 on the cutter head 2, and then inserted into the mounting hole 33, so as to fix the cutter head 2 to the mounting block; by dividing the mounting block into a separate mounting block 1 31 and a mounting block 2 32, it is convenient for the mounting block to install and fix the cutter head 2. At the same time, mounting holes 33 and fixing pins 34 are respectively provided on the mounting block 1 31 and the mounting block 2 32 for convenience in plugging the two together. The fixing pin 34 is directly passed through the fixing hole 21 and fixed to the mounting hole 33, which facilitates the installation and fixing of the cutter head 2 and improves the installation sales volume. At the same time, the mounting block 1 31 and the mounting block 2 32 can form a fixing effect on the cutter head 2 after covering it, and the stability is better.

[0030] In this embodiment, the adjacent tail ends of the mounting block 1 31 and the mounting block 2 32 are connected with a connecting belt 4, and the mounting block 1 31 and the mounting block 2 32 are folded relative to the connecting belt 4, so that the mounting block 1 31 and the mounting block 2 32 can be connected together, which is convenient for production and installation. The mounting block 1 31 and the mounting block 2 32 can be folded without the need to pick up other objects, and the operation is convenient.

[0031] At the same time, the connecting belt 4 includes connecting parts 41 at both ends respectively connected to the mounting block 1 31 and the mounting block 2 32, and a bending part 42 is provided between the connecting parts 41. The thickness of the bending part 42 is less than the thickness of the connecting part 41. The connecting belt 4 is folded at the bending part 42, which facilitates the folding of the mounting block 1 31 and the mounting block 2 32, and after folding, the connecting belt 4 will not affect the assembly of the mounting block 1 31 and the mounting block 2 32 with the handle 1.

[0032] In order to facilitate production, at least two connecting belts 4 are arranged at intervals. The connecting belts 4 and the mounting blocks are both made of plastic, so that the entire product can be produced in one piece. At the same time, the connecting belts 4 arranged at intervals can reduce material and are also convenient for folding.

[0033] In this embodiment, the handle 1 and the mounting block are fixed by ultrasonic welding. At the same time, in order to facilitate installation and welding, a step 13 is provided at the outer end of the mounting cavity 11, and a boss 36 that cooperates with the step 13 is provided on the mounting block. At the same time, the outer cross-section of the mounting block is a frustum or an inclined setting, so that the mounting block and the mounting cavity 11 form an interference fit, which facilitates ultrasonic welding and makes the fixed handle 1 and the mounting block more firm.

[0034] A fixing cavity 1 37 and a fixing cavity 2 38 are respectively provided on the mounting block 1 31 and the mounting block 2 32. When the mounting block 1 31 and the mounting block 2 32 are covered, a fixing cavity 39 for accommodating one end of the cutter head 2 is formed. The end face of the fixing cavity 39 abuts against the end face of the cutter head 2. The fixing cavity 1 37 and the fixing cavity 2 38 form a means of accommodating one end of the cutter head 2 and also achieve abutment and fixation of the cutter head 2, so that the cutter head 2 is more firmly fixed to the mounting block and the mounting cavity 11 and is not easy to shake.

[0035] The mounting holes 33 and fixing pins 34 are provided in one group, and can also be provided in two groups, three groups or even more groups according to the situation. In the present embodiment, preferably, the mounting holes 33 and fixing pins 34 are provided in two groups; and fixing holes 21 corresponding to the mounting holes 33 and fixing pins 34 are provided along the length direction of the cutter head 2, that is, the number of fixing holes 21 is the same as that of mounting holes 33 and fixing pins 34, which facilitates production and installation; at the same time, by providing two or more groups of mounting holes 33 and fixing pins 34, the cutter head 2 can be better fixed to prevent it from shaking.

[0036] Two limiting ribs 12 are axially arranged on the inside of the installation cavity 11, and the outer peripheries of the installation block 1 31 and the installation block 2 32 are both provided with limiting grooves 35 adapted to the limiting ribs 12. The installation block is plugged into the installation cavity 11, and the limiting grooves 35 are inserted along the limiting ribs 12. In this way, the installation block can be fixed in the installation cavity 11 without rotation, which is convenient for installation and can also make the cutter head 2 more stable when in use.

[0037] During installation, the manufacturer needs to assemble the cutter head 2 with the mounting block, fold the mounting block 1 31 or the mounting block 2 32 relative to each other, so that the fixing pin 34 on the mounting block 1 31 is inserted into the fixing hole 21 on the cutter head 2, and the fixing pin 34 continues to be plugged and fixed with the mounting hole 33, and then insert the mounting block with the cutter head 2 fixed into the mounting cavity 11 on the handle 1, and then fix the mounting block and the handle 1 with ultrasonic welding.

[0038] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fixing structure for a cutting tool, comprising a handle (1) and a cutting head (2) connected to the handle (1), wherein the cutting head (2) is connected to the handle (1) via a mounting block (3), the handle (1) is provided with a mounting cavity (11) for the mounting block (3) to be fixed, and the cutting head (2) is provided with a fixing hole (21), characterized in that: The mounting block (3) comprises a mounting block 1 (31) and a mounting block 2 (32) arranged to cover the mounting block 1 (31). A mounting hole (33) is provided on the mounting block 1 (31) or the mounting block 2 (32). A fixing pin (34) is provided on the mounting block 2 (32) or the mounting block 1 (31) and is inserted into the mounting hole (33). After the mounting block 1 (31) and the mounting block 2 (32) are covered, the fixing pin (34) passes through the fixing hole (21) to axially fix the cutter head (2) and the mounting block (3).

2. The tool fixing structure according to claim 1, characterized in that: The adjacent tail ends of the mounting block 1 (31) and the mounting block 2 (32) are connected with a connecting belt (4), and the mounting block 1 (31) and the mounting block 2 (32) are folded relative to the connecting belt (4).

3. The tool fixing structure according to claim 2, characterized in that: The connecting belt (4) comprises connecting portions (41) at both ends respectively connected to the first mounting block (31) and the second mounting block (32), a bending portion (42) is provided between the connecting portions (41), the thickness of the bending portion (42) is smaller than the thickness of the connecting portion (41), and the connecting belt (4) is folded at the bending portion (42).

4. The tool fixing structure according to claim 2 or 3, characterized in that: At least two connecting belts (4) are arranged at intervals, and both the connecting belts (4) and the mounting blocks (3) are made of plastic.

5. The tool fixing structure according to claim 4, characterized in that: The handle (1) and the mounting block (3) are fixed by ultrasonic welding.

6. The tool fixing structure according to claim 1, characterized in that: The mounting block 1 (31) and the mounting block 2 (32) are respectively provided with a fixing cavity 1 (37) and a fixing cavity 2 (38). When the mounting block 1 (31) and the mounting block 2 (32) are covered, a fixing cavity (39) for accommodating one end of the cutter head (2) is formed, and an end face of the fixing cavity (39) abuts against an end face of the cutter head (2).

7. The tool fixing structure according to claim 1, 2, 3, 5 or 6, characterized in that: At least two groups of the mounting holes (33) and the fixing pins (34) are provided; and fixing holes (21) corresponding to the mounting holes (33) and the fixing pins (34) are provided along the length direction of the cutter head (2).

8. The tool fixing structure according to claim 7, characterized in that: Two limiting ribs (12) are axially arranged inside the installation cavity (11), and the outer peripheries of the first installation block (31) and the second installation block (32) are both provided with limiting grooves (35) adapted to the limiting ribs (12). The installation block (3) is plugged into the installation cavity (11), and the limiting grooves (35) are inserted along the limiting ribs (12).

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