Protective cover of handheld cutting machine

By designing a protective cover for the handheld cutting machine and utilizing the airflow of the driving motor and the block brush structure, the problem of unsatisfactory effect of the existing dust removal device is solved, and efficient dust cleaning and health protection are achieved.

CN223369739UActive Publication Date: 2025-09-23陈玉程
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Patent Information

Application Number
CN202422766699.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-13
Publication Date
2025-09-23
Estimated Expiration
2034-11-13

AI Technical Summary

Technical Problem

The dust removal device of the existing handheld cutting machine is not ideal, and has the problems of complex device and inconvenience in carrying, which affects the health of construction workers.

Method used

A handheld cutting machine protective cover is designed, which includes a protective cover body, a dust outlet pipe, an air outlet, a block and a transparent baffle. The airflow of the driving motor is used to blow the dust into the dust outlet pipe through the air outlet, and the dust is blocked by the block and the brush to form a closed space to improve the dust removal effect.

Benefits of technology

It can effectively clean dust, avoid dust generation, ensure air quality and personnel health, and has a simple structure and is easy to use, making it suitable for dust treatment of handheld cutting machines.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a protective cover of a handheld cutting machine. The protective cover comprises a protective cover body and a baffle, a mounting part matched with a driving motor is arranged on one side of the protective cover body, a dust outlet pipe is arranged on the protective cover body, an air outlet corresponding to the dust outlet pipe is formed in the protective cover body, and check blocks are symmetrically arranged on the side, located at the air outlet, in the protective cover body; a baffle is movably arranged on the side, away from the mounting part, of the protective cover body. The protective cover is simple in structure and convenient to use, generation of a large amount of dust can be effectively avoided, meanwhile, collection of the dust in the protective cover body can be improved, and the air quality and the body health of personnel are guaranteed.
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Description

Technical Field

[0001] The utility model relates to the technical field of cutting equipment accessories, in particular to a protective cover for a handheld cutting machine. Background Art

[0002] Handheld cutters are machines that can be used to cut materials such as stone, tile, and wood. When workers use handheld cutters for construction work, they produce a large amount of dust, especially when cutting concrete or stone. This dust can cause damage to vital organs such as the lungs, ears, nose, throat, and eyes, threatening the health of construction workers.

[0003] Currently, the known method for removing dust from handheld cutting machines is to connect a vacuum cleaner to the protective cover of the handheld cutting machine or to add a water spray device. The dust removal effect is not ideal. At the same time, the installation of the vacuum cleaner or the water spray device will cause the device to be complicated and inconvenient to carry, and to a certain extent cause inconvenience in use.

[0004] Therefore, a handheld cutting machine protective cover is proposed to solve the current shortcomings. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned technology and provide a protective cover for a handheld cutting machine.

[0006] In order to solve the above technical problems, the technical solution provided by the present invention is a handheld cutting machine protective cover: comprising a protective cover body and a baffle;

[0007] A mounting portion cooperating with the drive motor is provided on one side of the protective cover body, a dust outlet pipe is provided on the protective cover body, an air outlet corresponding to the dust outlet pipe is provided in the protective cover body, and a stopper is symmetrically provided on one side of the air outlet in the protective cover body;

[0008] A baffle is movably provided on one side of the protective cover body away from the mounting portion.

[0009] As an improvement, the dust outlet pipe is arranged parallel to the axis direction of the installation portion, and the dust outlet pipe is a tubular structure that transitions from an elliptical to a circular shape from the protective cover body to the other end.

[0010] As an improvement, the air outlet is arranged corresponding to the heat dissipation hole of the drive motor, and the air outlet includes a plurality of through holes of different sizes arranged in a staggered manner.

[0011] As an improvement, the block is located on the right side of the air outlet and is provided with a brush.

[0012] As an improvement, the baffle is made of transparent material.

[0013] As an improvement, the outer edge of the baffle is provided with a plurality of magnets that cooperate with the protective cover body.

[0014] As an improvement, a plurality of adjustment holes are provided on the outer edge of the baffle, and a locking pin that cooperates with the adjustment holes is provided on the protective cover body.

[0015] As an improvement, it further includes a lighting lamp, which is located at one end of the protective cover body away from the dust outlet pipe, and the irradiation end of the lighting lamp faces the bottom of the protective cover body close to the dust outlet pipe.

[0016] The advantages of this utility model compared with the prior art are:

[0017] 1. By setting the air outlet in correspondence with the dust outlet pipe, and coordinating the air outlet with the driving rod motor, the airflow generated by the heat dissipation of the driving motor can be used to blow the generated dust to the dust outlet pipe through the air outlet. At the same time, the setting of the through-hole tapered structure can increase the airflow speed through the air outlet, further ensuring the cleaning effect of the dust in the protective cover body.

[0018] 2. Through the coordination between the baffle and the protective cover body, a closed space can be formed inside the protective cover body to ensure the collection of dust through the dust outlet pipe and avoid the generation of dust. At the same time, the baffle made of transparent material can facilitate the observation of the handheld cutting machine during work.

[0019] 3. By coordinating the block and the brush, the generated dust can be blocked on the side of the block close to the dust outlet pipe, thereby improving the dust removal effect;

[0020] 4. The protective cover has a simple structure and is easy to use. It can effectively avoid the generation of a large amount of dust. At the same time, it can improve the collection of dust in the protective cover itself, ensuring air quality and the health of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a protective cover for a handheld cutting machine in this utility model. Figure 1 .

[0022] Figure 2 This is a schematic diagram of the structure of a protective cover for a handheld cutting machine in this utility model. Figure 2 .

[0023] Figure 3 This is a schematic diagram of the structure of the protective cover body of a handheld cutting machine protective cover of the utility model. Figure 1 .

[0024] Figure 4 This is a schematic diagram of the structure of the protective cover body of a handheld cutting machine protective cover of the utility model. Figure 2 .

[0025] Figure 5 It is a structural schematic diagram of another embodiment of a handheld cutting machine protective cover of the present utility model.

[0026] As shown in the figure: 1. Protective cover body, 2. Baffle, 3. Mounting part, 4. Dust outlet pipe, 5. Air outlet, 6. Block, 7. Brush, 8. Magnet, 9. Adjustment hole, 10. Locking pin, 11. Lighting lamp. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings of 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. Generally, the components of the embodiments of the utility model described and shown in the drawings herein can be arranged and designed in various different configurations.

[0028] In the description of the embodiments of the utility model, it should be noted that if the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc. appear, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. These terms are only used to facilitate the description of the utility model and simplify the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limitations on the utility model. In addition, the terms "first," "second," "third," etc. are used only to distinguish the description and should not be understood as indicating or implying relative importance.

[0029] Furthermore, the use of terms such as "horizontal," "vertical," and "overhanging" does not necessarily imply that the component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0030] In the description of the embodiments of the utility model, "a plurality of" means at least 2.

[0031] In the description of the embodiments of the utility model, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art can understand the specific meanings of the above terms in the utility model based on specific circumstances.

[0032] Combined with attachment Figure 1-5 As shown, a handheld cutting machine protective cover includes a protective cover body 1 and a baffle 2. In this embodiment, the protective cover body 1 is made of metal material. Similarly, it can also be made of other materials, including but not limited to plastic.

[0033] A mounting portion 3 cooperating with the drive motor is provided on one side of the shield body 1 , and the shield body 1 is connected to the drive motor via the mounting portion 3 . Meanwhile, a space for installing a saw blade is provided inside the shield body 1 .

[0034] The protective cover body 1 is provided with a dust outlet pipe 4. In this embodiment, the dust outlet pipe 4 is arranged on the left side of the upper part of the protective cover body 1. During implementation, the dust can be collected by connecting the dust outlet pipe 4 with a hose or a bag.

[0035] Specifically, the dust outlet pipe 4 is arranged parallel to the axial direction of the mounting portion 3, and the dust outlet pipe 4 is a tubular structure that transitions from an elliptical to a circular shape from the protective cover body 1 to its other end. By connecting the dust outlet pipe 4 to the protective cover body 1 with one end being elliptical, the area of ​​the dust outlet pipe 4 in the protective cover body 1 can be increased, thereby improving the dust collection efficiency.

[0036] An air outlet 5 corresponding to the dust outlet pipe 4 is provided in the protective cover body 1. At the same time, the air outlet 5 is close to the saw blade, and the airflow at the air outlet 5 can blow the generated dust directly to the dust outlet pipe 4, thereby realizing the transportation of the dust, and avoiding the accumulation of dust in the protective cover body 1, thereby ensuring the normal operation of the handheld cutting machine.

[0037] In a specific implementation, when the protective cover body 1 is connected to the driving motor through the mounting portion 3, the air outlet 5 is arranged corresponding to the heat dissipation hole of the driving motor, so that the air generated by the heat dissipation of the driving motor can be blown to the dust outlet pipe 4 after passing through the air outlet 5 to realize the collection of dust.

[0038] Furthermore, the form of the air outlet 5 can be set according to actual conditions, including but not limited to louver type, slit type, mesh type, circular hole type, etc. In the present embodiment, the air outlet 5 includes a plurality of through holes of different sizes arranged in an interlaced manner. At the same time, the air outlet 5 is arranged in an arc shape, which can ensure the air outlet area while increasing the matching area with the saw blade, thereby ensuring the dust cleaning effect and improving the dust transportation efficiency to the dust outlet pipe 4.

[0039] Furthermore, the trapezoidal structure of the through hole cross section linearly increasing from the baffle 2 to the other end thereof can increase the airflow velocity of the heat dissipating airflow of the drive motor through the air outlet 5, thereby further improving the dust cleaning effect inside the protective cover body 1.

[0040] At the same time, in order to ensure the heat dissipation effect of the drive motor, the mounting portion 3 can also be provided with a heat dissipation hole at the heat dissipation location of the drive motor, and a movable baffle can be provided at the heat dissipation hole. On the premise of ensuring the heat dissipation airflow through the air outlet 5 to clean the dust in the protective cover body 1, the heat dissipation of the drive motor can be ensured by opening the movable baffle.

[0041] A stopper 6 is symmetrically provided on one side of the air outlet 5 in the protective cover body 1. The stopper 6 is arranged on both sides of the saw blade, and the stopper 6 is located on the right side of the air outlet 5. During the operation of the saw blade, the dust generated can be blocked on the side of the stopper 6 close to the dust outlet pipe 4 through the setting of the stopper 6 to improve the dust removal effect.

[0042] Furthermore, a brush 7 is provided on the block 6, and the brush 7 is detachably connected to the block 6. In actual use, the brush 7 contacts the side of the saw blade, which can clean the dust on the saw blade. On the basis of ensuring the working performance of the saw blade, the dust generated when the handheld cutting machine is working is located near the dust outlet pipe 4 to ensure the dust removal effect, avoid the generation of a large amount of dust during cutting processing, and ensure the air quality and the health of personnel.

[0043] A baffle 2 is movably provided on one side of the protective cover body 1 away from the mounting portion 3. The baffle 2 is made of a transparent material. The baffle 2 is movably connected to the protective cover body 1. Through the cooperation between the two, a closed space can be formed in the protective cover body 1 to ensure dust collection through the dust outlet pipe 4 and avoid the generation of dust. At the same time, the baffle 2 made of transparent material can facilitate observation of the handheld cutting machine during operation.

[0044] In a specific implementation, a plurality of magnets 8 cooperating with the protective cover body 1 are provided on the outer edge of the baffle 2. Specifically, the number of the magnets 8 can be set according to actual conditions. In this embodiment, the number of the magnets 8 is 3.

[0045] The baffle 2 is connected to the protective cover body 1 via a magnet 8, and is easy to install and disassemble.

[0046] As another embodiment, the outer edge of the baffle 2 is provided with a plurality of adjustment holes 9, and the protective cover body 1 is provided with a locking pin 10 that cooperates with the adjustment hole 9. Through the cooperation between the locking pin 10 and the adjustment hole 9, the baffle 2 can be moved up and down on the protective cover body 1. At the same time, by tightening the locking pin 10, the relative position between the baffle 2 and the protective cover body 1 can be limited.

[0047] It also includes a lighting lamp 11, which is located at the end of the protective cover body 1 away from the dust outlet pipe 4, and the irradiation end of the lighting lamp 11 is toward the bottom of the end of the protective cover body 1 close to the dust outlet pipe 4. The lighting lamp 11 is tilted on the protective cover body 1 to provide a clear field of view inside the protective cover body 1, making it convenient to check the situation inside the protective cover body 1.

[0048] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A protective cover for a handheld cutting machine, characterized by: It comprises a protective cover body (1) and a baffle (2); A mounting portion (3) cooperating with the drive motor is provided on one side of the protective cover body (1); a dust outlet pipe (4) is provided on the protective cover body (1); an air outlet (5) corresponding to the dust outlet pipe (4) is provided inside the protective cover body (1); and a stopper (6) is symmetrically provided on one side of the air outlet (5) inside the protective cover body (1); A baffle (2) is movably provided on a side of the protective cover body (1) away from the mounting portion (3).

2. The protective cover for a handheld cutting machine according to claim 1, characterized in that: The dust outlet pipe (4) is arranged parallel to the axial direction of the mounting portion (3), and the dust outlet pipe (4) is a tubular structure that transitions from an ellipse to a circle from the protective cover body (1) to the other end thereof.

3. The protective cover for a handheld cutting machine according to claim 1, characterized in that: The air outlet (5) is arranged corresponding to the heat dissipation holes of the drive motor, and the air outlet (5) comprises a plurality of through holes of different sizes arranged in a staggered manner.

4. The protective cover for a handheld cutting machine according to claim 1, characterized in that: The stopper (6) is located on the right side of the air outlet (5), and a brush (7) is provided on the stopper (6).

5. The protective cover for a handheld cutting machine according to claim 1, characterized in that: The baffle (2) is made of transparent material.

6. The protective cover for a handheld cutting machine according to claim 5, characterized in that: The outer edge of the baffle (2) is provided with a plurality of magnets (8) that cooperate with the protective cover body (1).

7. The protective cover for a handheld cutting machine according to claim 5, characterized in that: The outer edge of the baffle (2) is provided with a plurality of adjustment holes (9), and the protective cover body (1) is provided with a locking pin (10) that matches the adjustment holes (9).

8. The protective cover for a handheld cutting machine according to claim 1, characterized in that: It also includes a lighting lamp (11), which is located at one end of the protective cover body (1) away from the dust outlet pipe (4), and the irradiation end of the lighting lamp (11) faces the bottom of one end of the protective cover body (1) close to the dust outlet pipe (4).