Airflow partitioned dust-free bench saw box

Abstract

The utility model discloses an airflow zoning dust-free bench saw box which comprises a box body, a middle partition plate is arranged in the box body, the inner side of the box body is divided into an upper area and a lower area through the middle partition plate, a plurality of vertical ribs are installed on the middle partition plate, and the upper area is divided into a cold air area, a hot air area and a cutting airflow area through the vertical ribs. The middle partition plate, the vertical ribs and the box body are of an integrated structure. The cold air area is located at the tail of the cutting motor, and an air inlet is formed in the side wall of the box body at the cold air area; the hot air area is located in the middle of the cutting motor, and an air outlet is formed in the side wall of the box body at the hot air area; the cutting airflow area is located on the front side of the head of the cutting motor and matched with a saw blade installed on a rotating shaft of the cutting motor, and a sinking dust outlet communicated with the lower area is formed in the bottom of the cutting airflow area. According to the utility model, cold air, hot air and the like are separated into independent areas, the cooling effect of the cutting motor is improved, and the product cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric tools and relates to a structural improvement of a box for a table saw, in particular to a dust-free table saw box with airflow partitions. Background Art

[0002] The table saw is composed of a box, a saw blade, a power system, and a workbench for placing materials. The workbench is installed on the top of the box, and the power system is installed in the box to drive the saw blade to rotate and cut the material. The power system is generally powered by an electric motor, which can also be called a main motor or a cutting motor.

[0003] When in use, the teeth of the table saw blade first come into contact with the material, and the saw blade rotates with the shaft of the cutting motor, forming a rotating airflow around the saw blade, and the generated dust is carried by the airflow along the direction of rotation of the saw blade. As a result, this type of power tool generates a lot of dust during cutting, which spreads everywhere and is difficult to collect, polluting the environment and endangering the health of personnel.

[0004] The dust-free table saw realizes the functions of saw blade cutting and dust collection at the same time, which improves the problem of dust flying to a certain extent. However, the internal space of the existing dust-free table saw box is not reasonably divided and isolated, and when the cutting motor is working, it needs to cool down the cutting motor body by inhaling cold air flow. The hot air formed is easy to mix with the cold air flow and the cutting air flow containing dust, which affects each other, resulting in a decrease in the heat dissipation effect of the cutting motor.

[0005] In addition, the cabinets of existing dust-free table saws are mostly formed by stamping metal materials, and then the middle partition, dust suction motor assembly and other parts are installed and assembled, which results in high production costs of the existing cabinets and dust-free table saws, multiple manufacturing links and high labor costs.

[0006] For example, the "dust-free table saw with a dust suction mechanism" disclosed in the Chinese patent (authorization publication number CN212948226U) includes: a mounting bracket and an electric saw mounted on the mounting bracket, the electric saw includes a motor and a saw blade, the mounting bracket is hinged with a dust cover, and the dust cover is placed above the saw blade; a dust box is provided on one side of the mounting bracket, the lower end of the saw blade is placed in the dust box, the motor is provided with a dust suction mechanism, the dust suction mechanism includes a dust suction pipe, a dust collecting bag and a dust suction fan arranged in the motor, one end of the dust suction pipe is connected to the dust box through the motor housing, and the other end of the dust suction pipe is connected to the dust collecting bag.

[0007] The dust-free table saw disclosed above still uses a universal box, and there is still the problem of interference between cold and hot air flows. Utility Model Content

[0008] The object of the present utility model is to provide a dust-free table saw box with air flow zoning, which is used to solve the problem that the cold and hot air flows in the box body of the existing dust-free table saw are mixed, affecting the service quality of the cutting motor and the dust suction effect.

[0009] In order to achieve the object of the present utility model, the following technical solutions are adopted:

[0010] The dust-free table saw box with air flow zoning includes a box body. An intermediate partition is provided inside the box body. The inner side of the box body is divided into an upper area and a lower area by the intermediate partition. A plurality of vertical ribs are installed on the intermediate partition. The upper area is divided into a cold air area, a hot air area and a cutting air flow area by the vertical ribs. The intermediate partition, the vertical ribs and the box body are of an integral structure. The cold air area is located at the tail of the cutting motor, and an air inlet is opened on the side wall of the box body at the cold air area. The hot air area is located in the middle of the cutting motor, and an air outlet is opened on the side wall of the box body at the hot air area. The cutting air flow area is located in front of the head of the cutting motor and cooperates with the saw blade installed on the rotating shaft of the cutting motor. A sunken dust outlet communicating with the lower area is opened at the bottom of the cutting air flow area.

[0011] In order to further achieve the object of the present utility model, the following technical solutions can also be adopted:

[0012] For the dust-free table saw box with air flow zoning as described above, an installation cavity for fixing the dust suction motor assembly is provided on the intermediate partition, and a suction port communicating with the lower area is provided at the bottom of the installation cavity.

[0013] For the dust-free table saw box with air flow zoning as described above, the installation cavity is located outside the cold air area, the hot air area and the cutting air flow area, and an air outlet communicating with the hot air area is opened on the side wall of the box body at the installation cavity.

[0014] For the dust-free table saw box with air flow zoning as described above, a bottom plate is installed at the bottom of the box body. The lower area is located between the bottom plate and the intermediate partition. A dust collection bag is placed in the lower area, and the sunken dust outlet is hermetically connected to the inlet of the dust collection bag.

[0015] For the dust-free table saw box with air flow zoning as described above, an operation port is opened on the side wall of the box body at the lower area, and a movable cover plate is installed on the operation port.

[0016] For the dust-free table saw box with air flow zoning as described above, a workbench is installed at the top of the box body, and a saw blade opening cooperating with the saw blade is opened on the workbench at the cutting air flow area.

[0017] For the dust-free table saw box with air flow zoning as described above, the intermediate partition, the vertical ribs and the box body are integrally injection molded.

[0018] The advantages of the present utility model are as follows:

[0019] This dust-free table saw box is provided with an intermediate partition inside the box body, dividing the box body into two sealed and isolated upper and lower regions. In the upper region, the box body and multiple connected vertical ribs are used to divide the upper part into three regions: a cold air zone A, a hot air zone B, and a cutting air flow zone C. An air inlet is provided in the cold air zone A to supply cooling air to the cutting motor body; an air outlet is provided in the hot air zone B for the hot air after the cutting motor body dissipates heat; the cutting air flow zone C is the lower sealed box of the saw blade, which communicates with the dust collection bag in the lower region D through a sunken dust outlet. Due to the hot and cold zoning, hot air cannot flow back and enter the cutting motor again, improving the cooling effect of the cutting motor.

[0020] Due to the action of the dust suction motor, the cutting air flow zone C and the lower region D are negative pressure regions. Under the action of negative pressure, the dust generated by the saw blade cutting is sucked into the region C from the outside, and then enters the dust collection bag through the sunken dust outlet. Through the filtration of the dust collection bag, the air is discharged outside the machine box by the dust suction motor. Since the upper and lower regions are sealed and isolated, and the cold air zone, hot air zone, and cutting air flow zone in the upper region are isolated from each other and will not mix and conflict, the dust collection and dust removal effects of the dust-free table saw are also improved.

[0021] The intermediate partition, vertical ribs of the present utility model and the box body are integrally injection molded, which reduces the cost, reduces the assembly link at the same time, and improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art.

[0023] Figure 1 is a schematic structural diagram of the present utility model;

[0024] Figure 2 is Figure 1 the internal structural schematic diagram of

[0025] REFERENCE SIGNS:

[0026] 1 - box body, 2 - intermediate partition, 3 - vertical rib, 4 - cutting motor, 5 - saw blade, 6 - dust suction motor assembly, 7 - dust collection bag, 8 - cover plate, 9 - bottom plate, 10 - workbench, 11 - air inlet, 12 - air outlet, 13 - sunken dust outlet;

[0027] A - cold air zone;

[0028] B - hot air zone;

[0029] C - cutting air flow zone;

[0030] D - lower region. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model.

[0032] In the description of the embodiments of the present utility model, unless otherwise clearly defined, terms such as "set", "installed", and "connected" should be understood in a broad sense. Those skilled in the relevant technical fields can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solutions.

[0033] As Figure 1 、 Figure 2 As shown, a dust-free table saw box with air flow partition disclosed in this embodiment includes a box body 1. A horizontal intermediate partition 2 is provided inside the box body 1. The internal space of the box body 1 is divided into an upper area and a lower area D on the bus by the intermediate partition 2. Multiple vertical ribs 3 are installed on the intermediate partition 2. The upper area is divided into a cold air area, a hot air area, and a cutting air flow area by the vertical ribs 3.

[0034] The intermediate partition 2, the vertical ribs 3, and the box body 1 of this embodiment are integrally injection molded. Using integral injection molding can significantly reduce costs, reduce the assembly process, and improve production efficiency. Moreover, plastic parts have advantages such as wear resistance and light weight, which also greatly improve the portability of the dust-free table saw.

[0035] As Figure 2 As shown, in this embodiment, the cold air area is located at the tail of the cutting motor 4, and an air inlet 11 is opened on the side wall of the box body 1 in the cold air area; the hot air area is located in the middle of the cutting motor 4, and an air outlet 12 is opened on the side wall of the box body 1 in the hot air area; the cutting air flow area is located in front of the head of the cutting motor 4. The cutting air flow area cooperates with the saw blade 5 installed on the rotating shaft of the cutting motor 4, and a sinking dust outlet 13 communicating with the lower area is opened at the bottom of the cutting air flow area.

[0036] In terms of the structure of the upper area, using the box body 1 and multiple connected vertical ribs 3, its space is divided into three areas: a cold air area A, a hot air area B, and a cutting air flow area C. The cold air area A is provided with an air inlet 11 to supply cooling air for the cutting motor 4 body; the hot air area B is provided with an air outlet 12 for the hot air after the cutting motor 4 body dissipates heat; the cutting air flow area C is the lower sealing box of the saw blade 5, and is connected to the dust collection bag 7 in the lower area D through the sinking dust outlet 13. Due to the cold and hot partition, hot air cannot flow back and enter the cutting motor 4 again, improving the cooling effect of the cutting motor 4 body.

[0037] The middle partition 2 is provided with an installation cavity for fixing the dust suction motor assembly 6, and the bottom of the installation cavity is provided with a suction port communicating with the lower area. The installation cavity and the middle partition 2 are integrally injection-molded, so that a suction port can be reserved on the middle partition 2. During installation, directly place the dust suction motor assembly 6 into the installation cavity, and then fix it with screws and the screw holes reserved on the middle partition 2.

[0038] In addition, the installation cavity is located outside the cold air area, the hot air area and the cutting air flow area, and an air outlet 12 communicating with the hot air area is opened on the side wall of the box body 1 at the installation cavity part.

[0039] Due to the action of the dust suction motor, the cutting air flow area C and the lower area D are negative pressure areas. Under the action of negative pressure, the dust generated by the saw blade 5 cutting is sucked from the outside into the area C, and then enters the dust collection bag 7 from the sinking dust outlet 13. Through the filtration of the dust collection bag 7, the air is discharged outside the machine box by the dust suction motor.

[0040] Since the upper area is sealed and isolated, and the cold air area, the hot air area and the cutting air flow area in the upper area are isolated from each other, they will not mix and conflict, which correspondingly improves the dust collection and dust removal effects of the dust-free table saw.

[0041] A bottom plate 9 is installed at the bottom of the box body 1. The lower area D is located between the bottom plate 9 and the middle partition 2. The dust collection bag 7 is placed in the lower area D, and the sinking dust outlet 13 is hermetically connected and fixed to the inlet of the dust collection bag 7.

[0042] In order to facilitate the installation of the dust collection bag 7 and the cleaning of the internal dust, a movable cover plate 8 is installed on the side wall of the box body 1 at the lower area D part. That is, when the cover plate 8 is opened and the dust collection bag 7 is separated from the sinking dust outlet 13, the whole dust collection bag 7 can be taken out from the lower area D.

[0043] Continue to refer to Figure 1 As shown, in this embodiment, a workbench 10 is installed on the top of the box body 1, and a saw blade opening 5 matching with the saw blade 5 is opened in the cutting air flow area of the workbench 10.

[0044] The technical content not described in detail in the present utility model is all well-known technologies.

Claims

1. A dust-free table saw box with airflow partitions, comprising a box body, characterized in that: A middle partition is provided in the box body, and the inner side of the box body is divided into an upper area and a lower area by the middle partition. A plurality of vertical ribs are installed on the middle partition, and the upper area is divided into a cold air area, a hot air area and a cutting air flow area by the vertical ribs. The middle partition, the vertical ribs and the box body are an integral structure; the cold air area is located at the tail of the cutting motor, and an air inlet is provided on the side wall of the box body in the cold air area; the hot air area is located in the middle of the cutting motor, and an air outlet is provided on the side wall of the box body in the hot air area; the cutting air flow area is located in front of the head of the cutting motor, and the cutting air flow area cooperates with the saw blade installed on the rotating shaft of the cutting motor, and a sinking dust outlet connected to the lower area is provided at the bottom of the cutting air flow area.

2. The dust-free table saw box with airflow partitions according to claim 1, characterized in that: The middle partition is provided with a mounting cavity for fixing the dust suction motor assembly, and the bottom of the mounting cavity is provided with an air suction port connected with the lower area.

3. The dust-free table saw box with airflow zones according to claim 2, characterized in that: The installation cavity is located outside the cold air zone, the hot air zone and the cutting air flow zone, and an air outlet connected to the hot air zone is opened on the side wall of the box body at the installation cavity.

4. The dust-free table saw box with airflow zones according to claim 1, characterized in that: A bottom plate is installed at the bottom of the box body, the lower area is located between the bottom plate and the middle partition plate, a dust bag is placed in the lower area, and a sunken dust outlet is sealed and connected to an inlet of the dust bag.

5. The dust-free table saw box with airflow zones according to claim 1, characterized in that: An operation opening is provided on the side wall of the box body at the lower area, and a movable cover plate is installed on the operation opening.

6. The dust-free table saw box with airflow zones according to claim 1, characterized in that: A workbench is installed on the top of the box body, and a saw blade opening matched with a saw blade is opened in the cutting airflow area of ​​the workbench.

7. The dust-free table saw box with airflow zones according to claim 1, characterized in that: The middle partition, the vertical ribs and the box body are integrally injection molded.

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