Supporting assembly for rotating shaft of protective curtain of electronic saw and electronic saw

Abstract

The utility model provides a supporting assembly for a rotating shaft of a protective curtain of an electronic saw, which comprises a transversely arranged rotating wheel and a hook for hooking the rotating wheel, the rotating wheel is provided with a sleeve hole for sleeving the rotating shaft, and the rotating wheel is provided with a front positioning flange blocked on the front side of the hook and a rear positioning flange blocked on the rear side of the hook. In the rotating process of the rotating wheel, the rotating wheel front positioning flange limits the rotating wheel to transversely move backwards in the axial direction, the rotating wheel rear positioning flange limits the rotating wheel to transversely move forwards in the axial direction, the front positioning flange and the rear positioning flange limit the rotating wheel to move forwards and backwards in the axial direction together, and the rotating wheel can be prevented from deviating from the hook in the axial direction.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic saws, in particular to a support assembly for a protective curtain rotating shaft of an electronic saw and an electronic saw. Background Art

[0002] An electronic saw is a tool for cutting materials. A rotating shaft is provided at the feeding port of the electronic saw, and a protective curtain is provided on the rotating shaft to block the feeding port, preventing debris generated by cutting materials from splashing outwards from the feeding port and injuring the staff. Driving mechanisms are provided at both ends of the rotating shaft. When feeding is required, the driving mechanism drives the rotating shaft to rotate counterclockwise, driving the protective curtain to flip upwards and retract, exposing the feeding port; after feeding is completed, the driving mechanism drives the rotating shaft to rotate clockwise, driving the protective curtain to flip downwards to block the feeding port. The feeding port of the electronic saw is very wide, and correspondingly, the rotating shaft needs to be designed very long. Therefore, a support assembly is provided at the middle position of the rotating shaft. The support assembly includes a horizontally placed runner and a J-shaped hook installed on the electronic saw. The J-shaped hook hooks the runner, and the runner is sleeved on the outer wall of the rotating shaft through a sleeve hole opened on itself. The rotating shaft rotates together with the runner. The runner can protect the rotating shaft and prevent the rotating shaft from being damaged by friction with the J-shaped hook during rotation. The disadvantage of this support assembly is that the runner may axially move back and forth and deviate from the J-shaped hook during rotation. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a support assembly for a protective curtain rotating shaft of an electronic saw and an electronic saw, in which the runner will not axially move back and forth and deviate from the hook during rotation.

[0004] To solve the above technical problem, the utility model provides a support assembly for a protective curtain rotating shaft of an electronic saw, which includes a horizontally placed runner and a hook that hooks the runner. A sleeve hole for sleeving the rotating shaft is opened on the runner. The runner is provided with a front positioning edge blocking the front side of the hook and a rear positioning edge blocking the rear side of the hook.

[0005] Further, the hook given by the utility model is U-shaped.

[0006] Further, there are two hooks given by the utility model, one in the front and one in the rear. The front positioning edge given by the utility model specifically blocks the front side of the front hook, and the rear positioning edge given by the utility model specifically blocks the rear side of the rear hook.

[0007] Further, it includes a mounting plate for mounting the support assembly on the electronic saw. A hook mounting hole is opened on the mounting plate, and the top end of the hook passes upwards through the hook mounting hole and is mounted on the mounting plate.

[0008] An electric saw is provided with a feed inlet, where a rotating shaft given by the present utility model is installed. A protective curtain and a support assembly given by the present utility model are installed on the rotating shaft. The rotating wheel given by the present utility model sleeves the rotating shaft through a sleeve hole, and when the rotating shaft rotates, the rotating wheel and the protective curtain rotate together with the rotating shaft.

[0009] During the rotation of the rotating wheel, the front positioning edge of the rotating wheel restricts the axial backward lateral movement of the rotating wheel, and the rear positioning edge of the rotating wheel restricts the axial forward lateral movement of the rotating wheel. The front positioning edge and the rear positioning edge together restrict the axial forward and backward movement of the rotating wheel, which can prevent the axial movement of the rotating wheel from deviating from the hook. Description of the Drawings

[0010] Figure 1 is a schematic diagram of the electric saw;

[0011] Figure 2 is a schematic diagram of the cylinder and the rotating shaft;

[0012] Figure 3 is Figure 1 the enlarged view of part A in

[0013] Figure 4 is the front view schematic diagram of the rotating wheel;

[0014] Figure 5 is the front side schematic diagram of the rotating wheel;

[0015] Figure 6 is the front side schematic diagram of the hook;

[0016] Figure 7 is the top view schematic diagram of the mounting plate.

[0017] Description of the Reference Numerals: 1, electric saw; 11, housing; 12, feed inlet; 2, cylinder; 21, connecting rod; 3, rotating shaft; 4, protective curtain; 5, hook; 6, rotating wheel; 61, sleeve hole; 62, front positioning edge; 63, rear positioning edge; 7, mounting plate; 71, hook mounting hole; 72, body mounting hole; 8, nut. Detailed Embodiments

[0018] The following further elaborates on the present invention in detail in conjunction with the specific embodiments.

[0019] See Figure 1 , the electric saw 1 has a housing 11, the housing 11 is provided with a feed inlet 12, a rotating shaft 3 is installed at the feed inlet 12, and a protective curtain 4 is provided on the rotating shaft 3 to block the feed inlet 12, preventing the debris generated by cutting materials from sputtering out of the feed inlet 12 and injuring the staff. See Figure 2, the electric saw 1 includes a cylinder 2 for driving the rotation of the rotating shaft 3. The cylinder 2 is hinged with a connecting rod 21, and the connecting rod 21 is connected to the rotating shaft 3. When feeding is required, the cylinder 2 drives the rotating shaft 3 to rotate counterclockwise by driving the connecting rod 21, driving the protective curtain 4 to flip up and retract, so that the feeding port 12 is exposed; after feeding is completed, the cylinder 2 drives the rotating shaft 3 to rotate clockwise by driving the connecting rod 21, driving the protective curtain 4 to flip down to block the feeding port 12.

[0020] The electric saw 1 is provided with a support assembly at the central position of the rotating shaft 3, see Figure 3 , 5 , the support assembly includes a horizontally placed runner 6, and a sleeve hole 61 is opened on the runner 6. The runner 6 sleeves the rotating shaft 3 through the sleeve hole 61. The support assembly includes a U-shaped hook 5 that hooks the runner 6. The support assembly includes a mounting plate 7 for mounting the support assembly on the electric saw 1. The mounting plate 7 is shown in Figure 7 , and a hook mounting hole 71 and a body mounting hole 72 are opened thereon. See Figure 3 , the top of the hook 5 passes upward through the hook mounting hole 71 and is mounted on the mounting plate 7 by a nut 8. An installation hole (not shown) is opened on the above-mentioned housing 11 of the electric saw 1. The body mounting hole 72 of the mounting plate 7 is aligned with the housing 11 installation hole, and the mounting plate 7 is mounted on the housing 11 by screws passing through the body mounting hole 72 and the housing 11 installation hole in sequence. There are two hooks 5, one in the front and one in the back. The runner 6 is provided with a front positioning edge 62 and a rear positioning edge 63. The front positioning edge 62 blocks the front side of the front hook 5, and the rear positioning edge 63 blocks the rear side of the rear hook 5, thus preventing the runner 6 from axially moving forward and backward and deviating from the hook 5. During the flipping process of the above-mentioned protective curtain 4, the rotating shaft 3 drives the runner 6 to rotate together, and the runner 6 can protect the rotating shaft 3 and prevent the rotating shaft 3 from being damaged by friction with the hook 5 during rotation.

[0021] As described above, it is only the implementation manner of the present invention, and the scope of patent protection is not limited thereby. Those skilled in the art make non-substantive changes or substitutions based on the present invention, and still fall within the scope of patent protection.

Claims

1. A support assembly for a rotating shaft of an electronic saw protective curtain, comprising a horizontally placed rotating wheel (6) and a hook (5) hooked on the rotating wheel (6), wherein a sleeve hole (61) for sleeved on the rotating shaft (3) is provided on the rotating wheel (6), wherein: The rotating wheel (6) is provided with a front positioning rib (62) blocking the front side of the hook (5) and a rear positioning rib (63) blocking the rear side of the hook (5).

2. The support assembly for the rotating shaft of the electronic saw protective curtain according to claim 1, characterized in that: The hook (5) is U-shaped.

3. The support assembly for the rotating shaft of the electronic saw protective curtain according to claim 1, characterized in that: There are two hooks (5), one at the front and one at the rear. The front positioning rib (62) specifically blocks the front side of the front hook (5), and the rear positioning rib (63) specifically blocks the rear side of the rear hook (5).

4. The support assembly for the rotating shaft of the electronic saw protective curtain according to claim 1, characterized in that: The invention comprises a mounting plate (7) for mounting the supporting assembly on the electronic saw (1), wherein a hook mounting hole (71) is provided on the mounting plate (7), and the top end of the hook (5) passes through the hook mounting hole (71) and is mounted on the mounting plate (7) with the top end facing upward.

5. An electronic saw, characterized in that: A feed port (12) is provided, the feed port (12) is provided with the rotating shaft (3), the rotating shaft (3) is provided with a protective curtain (4) and a supporting assembly as described in any one of claims 1 to 4, the rotating wheel (6) is sleeved on the rotating shaft (3) through a sleeve hole (61), and when the rotating shaft (3) rotates, the rotating wheel (6) and the protective curtain (4) rotate together with the rotating shaft (3).

6. The electronic saw according to claim 5, characterized in that: It comprises a shell (11), the feed port (12) is opened on the shell (11), and the mounting plate (7) is installed on the shell (11).

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