Cutting protection structure

Abstract

The utility model relates to a cutting protection structure. According to the technical scheme, a protective cover is arranged on the rear side wall of a base of a circular sawing machine body and comprises a front protective cover, an opening in the front end of the front protective cover right faces a blade of the circular sawing machine body, a rectangular through groove is formed in the upper portion of the rear side wall of the front protective cover, and a material blocking cover is movably inserted into the rectangular through groove; a first transverse plate is fixedly arranged in the middle of an opening in the front end of the material blocking cover, a limiting hole is formed in the middle of the upper side wall of the material blocking cover, a limiting pin is inserted into a middle hole of the first transverse plate, the front end of the limiting pin is fixedly connected with a second transverse plate, and the pin between the second transverse plate and the first transverse plate is sleeved with a spring. The second transverse plate is fixedly connected with the left inner wall and the right inner wall of an opening in the front end of a front protective cover, the lower portion of the rear side wall of the front protective cover fixedly sleeves an output shaft of a motor, and the motor is fixedly installed on the inner wall of the rear side of a base of the circular sawing machine body. The spark particle receiving device has the advantages that spark particles are received, splashing is avoided, and safety is improved.

Description

Technical Field

[0001] This utility model belongs to the field of protective structures for circular saw machines, and relates to a cutting protective structure. Background Technology

[0002] Circular saws are a common cutting tool in daily use. Commonly used hand-operated circular saws generate high-temperature sparks when cutting metal because the teeth of the circular cutting blade rub against the metal at high speed. Commonly used circular saws do not have corresponding protective structures, which can cause high-temperature sparks to fly backward along the tangential direction of the cutting blade, thus posing a certain safety risk of fire or burns.

[0003] Therefore, this utility model provides a cutting protection structure to solve the above problems. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model discloses a cutting protection structure. The technical solution adopted is as follows: it includes a circular saw body, and a protective cover is provided on the rear side wall of the base of the circular saw body. The protective cover includes a front protective cover, the front opening of which faces the blade of the circular saw body. A rectangular through groove is formed in the upper part of the rear side wall of the front protective cover. An inclined guide plate is fixedly provided between the lower edge of the rectangular through groove and the part of the front protective cover facing the rear edge of the base of the circular saw body when it is in a vertical state. A movable insert is placed in the rectangular through groove. A baffle is installed, with a first horizontal plate fixedly installed in the middle of the front opening of the baffle. A limiting hole is opened in the middle of the upper side wall of the baffle. A limiting pin is inserted into the middle opening of the first horizontal plate. The front end of the limiting pin is fixedly connected to a second horizontal plate. A spring is fitted on the pin between the second horizontal plate and the first horizontal plate. The second horizontal plate is fixedly connected to the left and right inner walls of the front opening of the front protective cover. The lower part of the rear side wall of the front protective cover is fixedly fitted onto the output shaft of the motor. The motor is fixedly installed on the rear inner wall of the base of the circular saw body.

[0005] As a preferred embodiment of this utility model, the second horizontal plate is flush with the front end face of the front protective cover; this design prevents interference when the front protective cover is rotated to the rear side wall of the base of the circular saw body.

[0006] As a preferred embodiment of this utility model, the lower end and the front end of the baffle are both open, and the baffle matches the cavity formed by the rectangular through groove and the inclined guide plate. This design of the baffle makes it easy to move it backward during use, forming a deeper cavity with the front protective cover, so that the high-temperature spark particles generated during the cutting process can enter into it, preventing them from splashing far away and causing fires or burns to others, thus improving the safety of the metal cutting process.

[0007] As a preferred embodiment of this utility model, when the baffle is inserted into the front protective cover, a limiting top post is provided at the top of the front protective cover corresponding to the limiting hole. A limiting cap is fixedly connected to the top of the limiting top post, a handle is provided at the top of the limiting cap, and a tension spring is fitted at the bottom of the limiting cap. By providing a limiting top post at the top of the front protective cover, it is convenient to limit the baffle inserted into the front protective cover, so that it is fixedly retracted into the front protective cover, reducing the volume of both when stored.

[0008] In a preferred embodiment of this utility model, the upper end of the tension spring is fixedly connected to the limiting cap, and the lower end of the tension spring is fixedly connected to the top of the front protective cover.

[0009] As a preferred embodiment of this utility model, the height of the front protective cover is equal to half the length of the base of the circular saw body, and the width of the front protective cover is less than the vertical thickness of the base of the circular saw body. This design of the front protective cover makes it easy to rotate and store it on the rear side wall of the base of the circular saw body, avoiding damage to the protective cover during transportation. At the same time, when it is rotated into a vertical position, it can receive as many spark particles generated during the cutting process as possible and prevent them from spreading.

[0010] The beneficial effects of this utility model are as follows: By installing a front protective cover on the rear side of the base of the circular saw body, and a movable retaining cover inside the front protective cover, when the machine is started, the motor can drive the protective cover to rotate out from the rear wall of the base of the circular saw body, so that the protective cover is in a vertical position. Lifting the handle at the top of the front protective cover causes the retaining cover to move backward from the rear opening of the front protective cover under the action of the spring, forming a deeper receiving groove. This receives the high-temperature spark particles generated during the cutting process and discharges them through the lower opening of the retaining cover, preventing the high-temperature spark particles generated when the circular saw body is cutting metal from splashing to the outside and causing fire or burns, thus improving the safety of the circular saw during use. After use, the retaining cover is pushed forward back into the front protective cover, and the motor is started to drive the front protective cover to rotate, so that the protective cover rotates to the rear wall of the base of the circular saw body, avoiding damage during transportation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a rear-view diagram of the overall structure of this utility model;

[0013] Figure 3 This is a cross-sectional view of the protective cover of this utility model;

[0014] Figure 4 This is a detailed cross-sectional view of the protective cover of this utility model.

[0015] In the diagram: 1-Circular saw body, 2-Protective cover, 3-Motor, 21-Front protective cover, 211-Rectangular through slot, 22-Inclined guide plate, 23-Material baffle, 231-First horizontal plate, 232-Limiting hole, 24-Limiting pin, 25-Second horizontal plate, 26-Spring, 27-Limiting top column, 271-Limiting cap, 272-Handle, 28-Tension spring. Detailed Implementation

[0016] Example 1

[0017] like Figures 1 to 4 As shown, the cutting protection structure of this utility model adopts the following technical solution: it includes a circular saw body 1, and a protective cover 2 is provided on the rear side wall of the base of the circular saw body 1. The protective cover 2 includes a front protective cover 21, the front opening of which faces the blade of the circular saw body 1. The height of the front protective cover 21 is equal to half the length of the base of the circular saw body 1, and the width of the front protective cover 21 is less than the vertical thickness of the base of the circular saw body 1. A rectangular opening is formed in the upper part of the rear side wall of the front protective cover 21. A rectangular through-slot 211 is provided, with an inclined guide plate 22 fixedly installed between its lower edge and the rear edge of the base of the circular saw body 1 when the front protective cover 21 is vertical. A material stop cover 23 is movably inserted into the rectangular through-slot 211. The lower and front ends of the material stop cover 23 are open, and the material stop cover 23 matches the cavity formed by the rectangular through-slot 211 and the inclined guide plate 22. A first horizontal plate 231 is fixedly installed in the middle of the front opening of the material stop cover 23. The upper side of the material stop cover 23... A limiting hole 232 is provided in the middle of the wall. A limiting pin 24 is inserted into the middle opening of the first horizontal plate 231. The front end of the limiting pin 24 is fixedly connected to the second horizontal plate 25. The second horizontal plate 25 is flush with the front end face of the front protective cover 21. A spring 26 is fitted on the pin between the second horizontal plate 25 and the first horizontal plate 231. The second horizontal plate 25 is fixedly connected to the left and right inner walls of the front opening of the front protective cover 21. When the baffle 23 is inserted into the front protective cover 21, the top of the front protective cover 21 is flush with the limiting pin 232. A limiting top post 27 is provided at the location corresponding to hole 232. The top of the limiting top post 27 is fixedly connected to a limiting cap 271. A handle 272 is provided at the top of the limiting cap 271. A tension spring 28 is fitted on the lower part of the limiting cap 271. The upper end of the tension spring 28 is fixedly connected to the limiting cap 271. The lower end of the tension spring 28 is fixedly connected to the top of the front protective cover 21. The lower part of the rear side wall of the front protective cover 21 is fixedly fitted on the output shaft of the motor 3. The motor 3 is fixedly installed on the rear inner wall of the base of the circular saw machine body 1.

[0018] The working principle of this utility model is as follows: When the machine is turned on, the motor 3 drives the protective cover 2 to rotate out from the rear side wall of the base of the circular saw body 1, so that the protective cover 2 is in a vertical position. Lift the handle at the top of the front protective cover 21, so that the baffle 23 moves backward from the rear opening of the front protective cover 21 under the action of the spring, forming a deeper receiving groove, thereby receiving the high-temperature spark particles generated during the cutting process and discharging them through the lower opening of the baffle 23. After use, push the baffle 23 forward back into the front protective cover 21. The limiting top post 27 at the top of the front protective cover 21, under the action of the tension spring 28, fixes the baffle 23 inside the front protective cover 21. Start the motor 3 again to drive the front protective cover 21 to rotate, so that the protective cover 2 rotates to the rear side wall of the base of the circular saw body 1, avoiding damage during transportation.

[0019] Electrical connection methods or structures not described in detail in this article are existing technologies.

[0020] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A cutting guard structure comprising a circular saw machine body (1), characterized in that: The rear side wall of the base of the circular saw machine body (1) is provided with a protective cover (2), the front end opening of the front protective cover (21) of the protective cover (2) is opposite to the blade of the circular saw machine body (1), the upper part of the rear side wall of the front protective cover (21) is provided with a rectangular through slot (211), the lower edge of the rectangular through slot (211) and the part of the front protective cover (21) opposite to the rear side edge of the base of the circular saw machine body (1) in the vertical state are fixedly provided with an inclined guide plate (22), a material blocking cover (23) is movably inserted in the rectangular through slot (211), a first horizontal plate (231) is fixedly arranged at the middle part of the front end opening of the material blocking cover (23), a limiting hole (232) is formed in the middle part of the upper side wall of the material blocking cover (23), a limiting pin (24) is inserted in the middle hole of the first horizontal plate (231), a second horizontal plate (25) is fixedly connected to the front end of the limiting pin (24), a spring (26) is sleeved on the pin between the second horizontal plate (25) and the first horizontal plate (231), the second horizontal plate (25) is fixedly connected to the left and right inner walls of the front end opening of the front protective cover (21), the lower part of the rear side wall of the front protective cover (21) is fixedly sleeved on the output shaft of the motor (3), and the motor (3) is fixedly installed on the rear inner wall of the base of the circular saw machine body (1).

2. The cutting guard structure of claim 1, wherein: The second horizontal plate (25) is flush with the front end face of the front protective cover (21).

3. The cutting guard structure of claim 1, wherein: The lower end and the front end of the material blocking cover (23) are both open, and the material blocking cover (23) matches the cavity formed by the rectangular through slot (211) and the inclined guide plate (22).

4. The cutting guard structure of claim 1, wherein: When the material blocking cover (23) is inserted into the front protective cover (21), a limiting top column (27) is formed in the part corresponding to the limiting hole (232) at the top of the front protective cover (21), a limiting cap (271) is fixedly connected to the top of the limiting top column (27), a handle (272) is arranged on the top of the limiting cap (271), and a tension spring (28) is sleeved on the lower part of the limiting cap (271).

5. A cutting guard structure according to claim 4, wherein: The upper end of the tension spring (28) is fixedly connected to the limiting cap (271), and the lower end of the tension spring (28) is fixedly connected to the top of the front protective cover (21).

6. The cutting guard structure of claim 1, wherein: The height of the front protective cover (21) is equal to half of the length of the base of the circular saw machine body (1), and the width of the front protective cover (21) is smaller than the thickness of the base of the circular saw machine body (1).

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