A retractable cutting tool

Abstract

The utility model belongs to the technical field of cutting tools, in particular to a retractable cutting tool, comprising a fixed base, a fixed block is fixedly installed on the outer side of the fixed base, and a turntable is rotatably installed between the inner sides of the fixed base; a moving component is arranged, a scale is arranged above the turntable, and the moving distance of the sliding block is adjusted according to the length of the radius; when it moves to a specified position, a first control handle is controlled to drive a first screw rod to rotate, so that the first screw rod abuts against the top of the turntable after the rotation, so that the sliding block is not easy to slide, so that the height of the blade can be controlled after the sliding block is fixed, and the second control handle is controlled to drive the second screw rod to rotate, so that the second screw rod can drive the clamping block to move after the rotation, so that the clamping block fixes the blade.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting tools, in particular to a retractable cutting tool. Background Art

[0002] At present, the universal teaching tools such as rulers and compasses used in class have single functions and can only be used individually. Sometimes multiple rulers and compasses are used in one class, which are inconvenient to carry and easy to lose. For example, when completing handicrafts, if you want to make a circular paper piece, you have to use a compass and scissors separately to complete it, and the circle cut out is not standardized, which is not conducive to teachers making full use of class time to quickly complete teaching tasks;

[0003] The announcement number CN201033448Y discloses a retractable cutting tool, including a bracket and a compass, wherein the bracket is composed of a vertical rod and a horizontal rod, wherein one end of the horizontal rod is sleeved on the upper part of the vertical rod and can make a circular motion around the vertical rod, and the other end of the horizontal rod is sleeved with a downward tube, in which a compass is fixed, and an iron ruler parallel to the horizontal rod is also penetrated on the tube wall of the tube, and a circular cutting knife that can move left and right along the iron ruler is sleeved on the iron ruler, and the bottom of the vertical rod of the bracket has no fixed plate;

[0004] When in use, the device requires a person to rotate the circular cutting knife with both hands, and it is difficult to adjust the length of the blade during cutting, making it difficult for the device to cut multiple sheets of paper. In addition, the device draws a circle using a compass, and the blade and the compass are prone to interfere with each other. Therefore, we propose a retractable cutting tool. Utility Model Content

[0005] The utility model aims to provide a retractable cutting tool to solve the existing problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A retractable cutting tool comprises a fixed base, a fixed block is fixedly installed on the outer side of the fixed base, a turntable is rotatably installed between the inner sides of the fixed base; a moving component is installed on the turntable; and a control component is installed on the fixed base and the fixed block.

[0008] As a further improvement of the above scheme, the moving assembly includes a sliding block, a mounting plate, a first screw rod, a first control handle, a fixed sleeve, a second screw rod, a second control handle and a clamping block. The sliding block is slidably installed between the inner sides of the turntable, the mounting plate is fixedly installed on the top of the sliding block, the first screw rod is threadedly installed between the inner sides of the mounting plate, the first control handle is fixedly installed on the top of the first screw rod, the fixed sleeve is fixedly installed on the top of the sliding block, the second screw rod is threadedly installed between the inner sides of the fixed sleeve, the second control handle is fixedly installed on the rear side of the second screw rod, the clamping block is rotatably installed on the outside of the other end of the second screw rod, and the clamping block is slidably installed between the inner sides of the fixed sleeve.

[0009] As a further improvement of the above scheme, the control component includes a rotating shaft, a transmission gear and a knob, the rotating shaft is rotatably installed between the inner sides of the fixed blocks, the transmission gear is fixedly installed on the outer side of the rotating shaft, and the knob is fixedly installed on the top of the rotating shaft.

[0010] As a further improvement of the above solution, a rotation groove is provided on the top of the fixed base, and the turntable is rotatably installed between the inner sides of the rotation groove.

[0011] As a further improvement of the above solution, a limiting slide groove is provided at the top of the rotating groove, a limiting block is fixedly installed at the bottom of the turntable, and the limiting block is slidably installed between the inner sides of the limiting slide groove.

[0012] By adopting the above technical solution, the turntable is relatively stable during rotation, and the limit block prevents the turntable from being easily separated from the inner side of the fixed base.

[0013] As a further improvement of the above solution, a scale is arranged on the top of the turntable, a sliding groove is opened on the top of the turntable, and the shape of the sliding block is the same as that of the sliding groove.

[0014] By adopting the above technical solution, the scale makes it easy for the staff to control the sliding block to move, and the sliding groove makes the sliding block more stable during the movement.

[0015] As a further improvement of the above solution, tooth grooves are provided around the outer side of the turntable, and the transmission gear is meshed with adjacent tooth grooves.

[0016] As a further improvement of the above solution, threaded holes are provided on one side of the mounting plate and the fixing sleeve, and the first screw rod and the second screw rod are threadedly installed between the inner sides of the threaded holes.

[0017] By adopting the above technical solution, the first screw rod and the second screw rod can cooperate with the thread after rotating, so that the first screw rod and the second screw rod can move.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] (1) The utility model is a retractable cutting tool, through the setting of the moving assembly, a scale is set above the turntable, and the moving distance of the sliding block is adjusted according to the length of the radius. When it moves to the specified position, the first control handle is controlled to drive the first screw rod to rotate, so that the first screw rod abuts against the top of the turntable after rotation, so that the sliding block is not easy to slide, so that the height of the blade can be controlled after the sliding block is fixed, and the second control handle is controlled to drive the second screw rod to rotate, so that the second screw rod can drive the clamping block to move after rotation, so that the clamping block fixes the blade;

[0020] (2) The utility model is a retractable cutting tool. After the angle and length of the blade are adjusted, the control knob drives the rotating shaft to rotate, so that the rotating shaft can drive the transmission gear to rotate after the rotation, and the transmission gear can drive the turntable to rotate through the cooperation of the tooth groove after the rotation, so that the turntable can drive the blade to move, so that it is more convenient for personnel to control the device and less likely to be cut by the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a three-dimensional structural schematic diagram of a retractable cutting tool proposed by the utility model;

[0023] Figure 2 A partial three-dimensional structural schematic diagram of a retractable cutting tool proposed by the utility model;

[0024] Figure 3 A partial three-dimensional structural schematic diagram of a retractable cutting tool proposed by the utility model;

[0025] Figure 4 for Figure 3 Schematic diagram of the structure of part A in FIG.

[0026] Figure 5 This is a partial three-dimensional structural schematic diagram of a retractable cutting tool proposed by the utility model.

[0027] In the figure: 1. fixed base; 2. fixed block; 3. turntable; 4. sliding block; 5. mounting plate; 6. first screw rod; 7. first control handle; 8. fixed sleeve; 9. second screw rod; 10. second control handle; 11. clamping block; 12. rotating shaft; 13. transmission gear; 14. knob. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] refer to Figure 1-5 A retractable cutting tool comprises a fixed base 1, a fixed block 2 is fixedly installed on the outer side of the fixed base 1, and a turntable 3 is rotatably installed between the inner sides of the fixed base 1; a moving component, the moving component is installed on the turntable 3; and a control component is installed on the fixed base 1 and the fixed block 2.

[0030] In this embodiment, the moving assembly includes a sliding block 4, a mounting plate 5, a first screw rod 6, a first control handle 7, a fixed sleeve 8, a second screw rod 9, a second control handle 10 and a clamping block 11. The sliding block 4 is slidably installed between the inner sides of the turntable 3, the mounting plate 5 is fixedly installed on the top of the sliding block 4, the first screw rod 6 is threadedly installed between the inner sides of the mounting plate 5, the first control handle 7 is fixedly installed on the top of the first screw rod 6, the fixed sleeve 8 is fixedly installed on the top of the sliding block 4, the second screw rod 9 is threadedly installed between the inner sides of the fixed sleeve 8, the second control handle 10 is fixedly installed on the rear side of the second screw rod 9, the clamping block 11 is rotatably installed on the outside of the other end of the second screw rod 9, and the clamping block 11 is slidably installed between the inner sides of the fixed sleeve 8.

[0031] In this embodiment, the control component includes a rotating shaft 12, a transmission gear 13 and a knob 14. The rotating shaft 12 is rotatably installed between the inner sides of the fixed block 2, the transmission gear 13 is fixedly installed on the outer side of the rotating shaft 12, and the knob 14 is fixedly installed on the top of the rotating shaft 12.

[0032] In this embodiment, a rotation groove is provided on the top of the fixed base 1, and the turntable 3 is rotatably installed between the inner sides of the rotation groove.

[0033] In this embodiment, a limiting slide groove is provided at the top of the rotating groove, a limiting block is fixedly installed at the bottom of the rotating disk 3, and the limiting block is slidably installed between the inner sides of the limiting slide groove.

[0034] In this embodiment, a scale is provided on the top of the turntable 3 , a sliding groove is provided on the top of the turntable 3 , and the shape of the sliding block 4 is the same as that of the sliding groove.

[0035] In this embodiment, tooth grooves are formed around the outer side of the rotating disk 3 , and the transmission gear 13 meshes with adjacent tooth grooves.

[0036] In this embodiment, threaded holes are provided on one side of the mounting plate 5 and the fixing sleeve 8, and the first screw rod 6 and the second screw rod 9 are threadedly installed between the inner sides of the threaded holes.

[0037] The implementation principle of one embodiment of the present application is as follows: a scale is provided above the turntable 3, and the moving distance of the sliding block 4 is adjusted according to the length of the radius. When it moves to the specified position, the first control handle 7 is controlled to drive the first screw rod 6 to rotate, so that the first screw rod 6 abuts against the top of the turntable 3 after rotation, so that the sliding block 4 is not easy to slide, so that the height of the blade can be controlled after the sliding block 4 is fixed, and the second control handle 10 is controlled to drive the second screw rod 9 to rotate, so that the second screw rod 9 can drive the clamping block 11 to move after rotation, so that the clamping block 11 fixes the blade; after the angle and length of the blade are adjusted, the control knob 14 drives the rotating shaft 12 to rotate, so that the rotating shaft 12 can drive the transmission gear 13 to rotate after rotation, so that the transmission gear 13 can drive the turntable 3 to rotate through the cooperation of the tooth groove after rotation, so that the turntable 3 can drive the blade to move, so that it is more convenient for personnel to control the device and it is not easy to be cut by the blade.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] The above is a detailed introduction to a retractable cutting tool provided by the utility model. The principle and implementation method of the utility model are described in detail using specific embodiments. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A retractable cutting tool, characterized in that: include: A fixed base (1), driving a fixed block (2) fixedly mounted on the outer side of the fixed base (1), and a rotating disk (3) rotatably mounted on the inner side of the fixed base (1); A moving assembly, wherein the moving assembly is mounted on a rotating disk (3); the moving assembly comprises a sliding block (4), a mounting plate (5), a first screw rod (6), a first control handle (7), a fixed sleeve (8), a second screw rod (9), a second control handle (10) and a clamping block (11); the sliding block (4) is slidably mounted between the inner sides of the rotating disk (3); the mounting plate (5) is fixedly mounted on the top of the sliding block (4); the first screw rod (6) is threadedly mounted between the inner sides of the mounting plate (5); the first control handle (7) is fixedly mounted on the top of the first screw rod (6); the fixed sleeve (8) is fixedly mounted on the top of the sliding block (4); the second screw rod (9) is threadedly mounted between the inner sides of the fixed sleeve (8); the second control handle (10) is fixedly mounted on the rear side of the second screw rod (9); the clamping block (11) is rotatably mounted on the outer side of the other end of the second screw rod (9); and the clamping block (11) is slidably mounted between the inner sides of the fixed sleeve (8); A control assembly is mounted on a fixed base (1) and a fixed block (2); the control assembly comprises a rotating shaft (12), a transmission gear (13) and a knob (14); the rotating shaft (12) is rotatably mounted between the inner sides of the fixed block (2), the transmission gear (13) is fixedly mounted on the outer side of the rotating shaft (12), and the knob (14) is fixedly mounted on the top of the rotating shaft (12).

2. A retractable cutting tool according to claim 1, characterized in that: A rotation groove is provided on the top of the fixed base (1), and the rotating disk (3) is rotatably mounted between the inner sides of the rotation groove.

3. A retractable cutting tool according to claim 1, characterized in that: A limit sliding groove is provided at the top of the rotating groove, and a limit block is fixedly installed at the bottom of the rotating disk (3), and the limit block is slidably installed between the inner sides of the limit sliding groove.

4. A retractable cutting tool according to claim 1, characterized in that: A scale is arranged on the top of the rotating disk (3), a sliding groove is opened on the top of the rotating disk (3), and the shape of the sliding block (4) is the same as that of the sliding groove.

5. A retractable cutting tool according to claim 1, characterized in that: The outer side of the rotating disk (3) is provided with tooth grooves around its periphery, and the transmission gear (13) meshes with adjacent tooth grooves.

6. A retractable cutting tool according to claim 1, characterized in that: A threaded hole is provided on one side of the mounting plate (5) and the fixing sleeve (8), and the first screw rod (6) and the second screw rod (9) are threadedly mounted between the inner sides of the threaded hole.

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