Movable disk saw protection cover

Abstract

The utility model belongs to the field of construction protective covers, and particularly relates to a disk saw protective cover. The utility model provides a movable disk saw protective cover, which is characterized in that a vertical rod, a cover plate unit and a sliding unit connected with the vertical rod and the cover plate unit are arranged on a bedplate, and the cover plate unit comprises two oppositely arranged side plates and two slideways respectively arranged on the two side plates. The slide way comprises a first slide way parallel to the bedplate, a second slide way which is arranged on the end part, close to the vertical rod, of the first slide way and is parallel to the vertical rod, and a guide slide way of which the two ends are respectively connected with the first slide way and the second slide way, so that 1, when the lower end of the shield plate of the disk saw protection shield is pushed, the shield plate can quickly fall back after being upwarped; wood chips are prevented from splashing more comprehensively; and 2, the cover plate can be guided to slide by the slideways of the disk saw protection cover, so that lifting and falling can be realized more conveniently, and incomplete protection caused by blockage in operation is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of construction protective covers, in particular to a movable circular saw protective cover. Background Art

[0002] In daily construction environments, it often happens that the size of the existing boards is not suitable and the boards need to be constructed on site. In particular, the boards are often placed on a workbench, and a circular saw is exposed on the workbench, and the cutting is achieved by pushing the boards to the circular saw.

[0003] However, when the circular saw is cutting the board, the saw blade rotates at high speed, and the wood chips of the board will splash around due to the centrifugal force, which will not only pollute the surrounding environment, but may also cause harm to the operator and cause safety accidents. Therefore, it is necessary to set up protective devices for the circular saw to meet the requirements of green construction on site.

[0004] A Chinese invention patent with patent publication number CN111605011A and publication date 2020.9.1 discloses a lifting protective cover for a woodworking circular saw, including a protective cover shell, a bracket, bolts, and a limit pin.

[0005] The general usage and advantages of the lifting protective cover in this Chinese invention patent are as follows: the protective cover is always in a falling state before sawing the board, and the saw blade is fully covered by the cover shell. When the machine starts sawing, the board moves forward on the workbench and touches the slope surface of the cover shell. Under the forward thrust of the processed board and the action of the slide, the cover shell moves upward as a whole, and the bottom surface of the cover shell always remains in contact with the board surface, and effectively controls the flying of wood chips. When the sawing is completed, the board evacuates the protective cover, and the protective cover automatically falls down, thereby ensuring that the exposed saw blade is fully protected.

[0006] However, the lifting protective cover still has at least the following shortcomings in actual use, in other words, the technical problems to be solved by the present utility model:

[0007] 1. Although the lifting protective cover has a slope surface, the bottom edge of the cover shell is still parallel to the wooden board surface. Before the cover shell is pushed upward, it will be tilted upward to a certain extent, and when the wooden board is pushed to the vicinity of the midpoint of the bottom edge of the cover shell, it will naturally fall down and fit the wooden board surface again. During the tilting process, the saw blade is exposed in front of the operator, which poses a certain safety hazard;

[0008] 2. The slide groove on the lifting protective cover is a vertical groove, which can only move up and down. It has no guiding effect on the movement of the cover when it is subjected to thrust, making it inconvenient for the cover to be lifted up and quickly fall back to fit the wooden board, increasing the risk of operators being splashed with wood chips.

[0009] Therefore, in summary, there is an urgent need for a protective cover that can quickly fall back to the board surface when subjected to a push from the board so as to provide a more comprehensive coverage effect to solve this type of problem. Utility Model Content

[0010] The utility model provides a movable circular saw protective cover, which has a vertical rod, a cover plate unit, and a sliding unit connecting the vertical rod and the cover plate unit on a table, wherein the cover plate unit includes two side plates arranged opposite to each other and two slides respectively arranged on the two side plates, the slides include a first slide arranged in parallel with the table, a second slide arranged on the end of the first slide close to the vertical rod and in parallel with the vertical rod, and a guide slide respectively connected to the first slide and the second slide at both ends, so that: 1. the lower end of the cover plate of the circular saw protective cover can quickly fall back after being tilted up when a thrust is applied, so as to more comprehensively prevent wood chips from splashing out; 2. the slide of the circular saw protective cover can guide the cover plate to slide, so as to more conveniently realize lifting and falling back, and avoid incomplete protection caused by jamming during operation.

[0011] The technical solution adopted by the utility model to solve the above-mentioned problem is: a movable circular saw protective cover, including a vertical rod arranged on a table, a cover plate unit arranged on one side of the vertical rod and used for covering the circular saw, and a sliding unit arranged at the connection between the vertical rod and the cover plate unit, the cover plate unit including two oppositely arranged side plates and two slides respectively arranged on the two side plates; the sliding unit includes a bolt that penetrates the vertical rod and is slidably connected to the two slides at both ends; the slide includes a first slide parallel to the table, a second slide arranged on the end of the first slide close to the vertical rod and parallel to the vertical rod, and a guide slide respectively connected to the first slide and the second slide at both ends.

[0012] A further preferred technical solution is that the cover plate unit also includes a top plate for connecting the two side plates.

[0013] A further preferred technical solution is that the contact surface between the side plate and the table plate is an arc-shaped surface.

[0014] A further preferred technical solution is that the sliding unit further comprises a groove arranged on the inner wall of the guide slideway, a ball arranged in the groove, and a baffle arranged at the opening of the groove and used to limit the ball from falling.

[0015] A further preferred technical solution is that the cover plate unit also includes a limiting device arranged at the two side plates close to the table plate, the limiting device includes two limiting rods, two limiting holes respectively arranged on the two side plates and used for the two limiting rods to pass through, two limiting plates respectively installed on the ends of the two limiting rods and arranged opposite to each other, and two limiting blocks respectively arranged on the ends of the two limiting rods away from the limiting plates.

[0016] A further preferred technical solution is that: the limiting hole is an internal threaded hole, and the limiting rod is provided with an external thread matched with the limiting hole.

[0017] A further preferred technical solution is that: a connecting hole is provided on the limiting plate, and an internal thread matching the external thread of the limiting rod is provided in the connecting hole.

[0018] A further preferred technical solution is that: scale lines are provided on the limit rod.

[0019] A further preferred technical solution is that a chip outlet is provided on the top plate.

[0020] A further preferred technical solution is that a smooth wear-resistant layer is provided at the lower end of the side plate close to the table plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a front view of the utility model;

[0023] Figure 3 It is a side view of the utility model;

[0024] Figure 4 It is a top view of the utility model;

[0025] Figure 5 It is a schematic diagram of the structure of the limiting device of the utility model.

[0026] In the figure, the meanings of the reference numerals are as follows:

[0027] Table a, circular saw b;

[0028] Vertical rod 1, cover plate unit 2, sliding unit 3;

[0029] Side plate 21, first slideway 22, second slideway 23, guide slideway 24, top plate 25, limit device 26, chip outlet 27, bolt 31, groove 32, ball 33, baffle 34;

[0030] Wear-resistant layer 211, limiting rod 261, limiting hole 262, limiting plate 263, limiting block 264;

[0031] Scale line 2611 and connecting hole 2631. DETAILED DESCRIPTION

[0032] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. The following description is only a preferred embodiment of the present invention and does not limit the scope of the present invention.

[0033] As attached Figure 1-5 As shown, a movable circular saw protective cover comprises a vertical rod 1 arranged on a table a, a cover plate unit 2 arranged on one side of the vertical rod 1 and used for covering a circular saw b, and a sliding unit 3 arranged at the connection between the vertical rod 1 and the cover plate unit 2, wherein the cover plate unit 2 comprises two oppositely arranged side plates 21 and two slideways respectively arranged on the two side plates 21; the sliding unit 3 comprises a bolt 31 penetrating the vertical rod 1 and having two ends respectively slidably connected to the two slideways; the slideway comprises a first slideway 22 arranged parallel to the table a, a second slideway 23 arranged on the end of the first slideway 22 close to the vertical rod 1 and arranged parallel to the vertical rod 1, and a guide slideway 24 having two ends respectively connected to the first slideway 22 and the second slideway 23.

[0034] In this embodiment, the general method of using the movable circular saw protective cover is as follows:

[0035] The vertical rod 1 is vertically arranged on the table a, and a sliding unit 3 is arranged on the upper surface of the vertical rod 1, which is connected to the side plate 21 in the cover plate unit 2 by bolts 31. A slideway is opened on each side plate 21, and the screw rod of the bolt 31 passes through the slideway, and the nut is respectively connected to the slideway opening on the side plate 21, so that the bolt 31 can slide in the slideway relatively stably.

[0036] The slide is divided into three sections. The first slide 22 is set parallel to the table a. Before the side plate 21 is pushed by the plate, the bolt 31 is in the first slide 22; after the side plate 21 is pushed by the plate, the bolt 31 moves relative to the side plate 21 in a direction closer to the vertical rod 1, and then enters the guide slide 24. The guide slide 24 is an arc-shaped slide, which guides the side plate 21 to swing to one side with the bolt 31 as the axis, making it easier for the plate to enter the bottom of the side plate 21; under the continued push of the plate, the bolt 31 enters the second slide 23, which is set parallel to the vertical rod 1. After the side plate 21 completes the swing on one side, the bolt 31 enters the second slide and completes the upward movement relative to the table a, and naturally falls back to fit and contact with the plate.

[0037] The cover plate unit 2 further includes a top plate 25 for connecting the two side plates 21 .

[0038] In this embodiment, the two side panels 21 of the cover panel unit 2 are connected by a top panel 25. The top panel 25 is located at the top of the two side panels 21 and prevents wood chips from splashing from the top to cause harm to the operator.

[0039] The contact surface between the side plate 21 and the platform a is an arc-shaped surface.

[0040] In this embodiment, the bottom edge of the side panel 21 is set as an arc-shaped surface in the contact surface with the table a, so that the side panel 21 can swing due to the action of the slide groove when the side panel 21 is pushed by the plate, so that the plate can enter the bottom of the side panel 21 more smoothly; the side panel 21 is in the shape of an irregular quadrilateral, and the part of its lower half close to the vertical rod does not contact the table a, so the contact surface between the side panel 21 and the table a or the plate is very small. As the plate enters, the bottom of the side panel 21 close to the vertical rod 1 loses the support of contact with the plate, and the side panel 21 quickly falls back onto the plate, ensuring that the saw blade is fully protected.

[0041] The sliding unit 3 further includes a groove 32 disposed on the inner wall of the guide slideway 24 , a ball 33 disposed in the groove 32 , and a baffle 34 disposed at the opening of the groove 32 and used to limit the ball 33 from falling.

[0042] In this embodiment, the guide slide 24 serves to guide the side plate 21 to swing away from the vertical rod 1. A groove 32 is arranged on the inner wall of the guide slide, and a ball 33 is arranged in the groove 32. A baffle 34 is arranged at the opening of the groove 32 to prevent the ball 33 from falling. The width of the baffle 34 is smaller than the diameter of the ball 33, so that the ball 33 is partially exposed from the inner wall of the slide. When the bolt 31 enters the guide slide 24, it can move smoothly in the slide under the action of the ball 33, and will not cause excessive wear to the guide slide 24 due to long-term use.

[0043] The cover plate unit 2 also includes a limiting device 26 arranged at the two side plates 21 near the table a, and the limiting device 26 includes two limiting rods 261, two limiting holes 262 respectively arranged on the two side plates 21 and used for the two limiting rods 261 to pass through, two limiting plates 263 respectively installed on the ends of the two limiting rods 261 and arranged opposite to each other, and two limiting blocks 264 respectively arranged on the ends of the two limiting rods 261 away from the limiting plates 263.

[0044] In this embodiment, a limiting device 26 is provided at the lower end of the side plate 21 near the circular saw b to position the protective cover of the present application before operation, ensuring that the protective cover is located directly above the circular saw b and has sufficient operating space. The two limiting rods 261 in the limiting device 26 are rotated to adjust the length of the two limiting rods 261 entering the corresponding limiting holes 262, so that the two limiting plates 263 respectively connected to the two limiting rods 261 at the relatively inner ends of the side plate 21 are close to each other until they contact the circular saw b. At this time, two limiting blocks 264 are respectively provided at the ends of the two limiting rods 261 away from the limiting plates 263, and the limiting blocks 264 abut against the outer surface of the side plate 21 to form a relatively stable structure.

[0045] The limiting hole 262 is an internal thread hole, and the limiting rod 261 is provided with an external thread matched with the limiting hole 262 .

[0046] In this embodiment, the limiting rod 261 is connected to the limiting hole 262 via a thread, so that the adjustment range is more flexible and the adjustment process is more stable.

[0047] The limiting plate 263 is provided with a connecting hole 2631 , and the connecting hole 2631 is provided with an internal thread matching the external thread of the limiting rod 261 .

[0048] In this embodiment, the connecting holes 2631 are respectively arranged on the sides of the two limiting plates 263 away from each other, and can be set as blind holes for threaded connection with the limiting rod 261. After positioning is completed, they can be removed from the limiting rod 261 to avoid affecting the operation of the circular saw b.

[0049] The limiting rod 261 is provided with a scale line 2611 .

[0050] In this embodiment, the limit rod 261 is provided with a scale line 2611 for ensuring that the adjustment distances of the two limit rods 261 are the same, so that positioning can be completed more efficiently and accurately.

[0051] The top plate 25 is provided with a chip outlet 27 .

[0052] In this embodiment, a chip discharge port 27 is provided at a position of the top plate 25 close to the vertical rod 1 , and a protruding chip discharge pipe may also be provided at the chip discharge port 27 , with the pipe opening facing away from the operator to avoid causing harm to the operator.

[0053] A smooth wear-resistant layer 211 is provided at the lower end of the side plate 21 close to the platform a.

[0054] In this embodiment, the lower end of the side plate 21 in contact with the plate is provided with a wear-resistant layer 211, which is used to increase the function of the slideway and extend the service life of the protective cover. The material of the wear-resistant layer can be a smooth and wear-resistant material commonly used in the art, so it will not be described in detail.

[0055] The above is a detailed description of the implementation of the utility model in conjunction with the accompanying drawings, but the utility model is not limited to the above implementation. Various modifications can be made within the knowledge of ordinary technicians in the technical field without departing from the purpose of the utility model. These are all non-creative modifications and are protected by patent law as long as they are within the scope of the claims of the utility model.

Claims

1. A movable circular saw protective cover, comprising a vertical rod (1) arranged on a table (a), a cover plate unit (2) arranged on one side of the vertical rod (1) and used to cover a circular saw (b), and a sliding unit (3) arranged at a connection between the vertical rod (1) and the cover plate unit (2), characterized in that: The cover plate unit (2) comprises two side plates (21) arranged opposite to each other and two slideways respectively arranged on the two side plates (21); the sliding unit (3) comprises a bolt (31) penetrating the vertical rod (1) and having two ends respectively connected in a sliding manner to the two slideways; the slideway comprises a first slideway (22) arranged in parallel with the table plate (a), a second slideway (23) arranged on an end of the first slideway (22) close to the vertical rod (1) and arranged in parallel with the vertical rod (1), and a guide slideway (24) having two ends respectively connected to the first slideway (22) and the second slideway (23).

2. The movable circular saw protective cover according to claim 1, characterized in that: The cover plate unit (2) further comprises a top plate (25) for connecting the two side plates (21).

3. The movable circular saw protective cover according to claim 1, characterized in that: The contact surface between the side plate (21) and the table plate (a) is an arc-shaped surface.

4. The movable circular saw protective cover according to claim 1, characterized in that: The sliding unit (3) further comprises a groove (32) arranged on the inner wall of the guide slideway (24), a ball (33) arranged in the groove (32), and a baffle (34) arranged at the opening of the groove (32) and used to limit the ball (33) from falling.

5. A movable circular saw protective cover according to any one of claims 1 to 4, characterized in that: The cover plate unit (2) further comprises a limiting device (26) arranged at the two side plates (21) near the table plate (a), the limiting device (26) comprising two limiting rods (261), two limiting holes (262) respectively arranged on the two side plates (21) and used for the two limiting rods (261) to pass through, two limiting plates (263) respectively mounted on the ends of the two limiting rods (261) and arranged opposite to each other, and two limiting blocks (264) respectively arranged on the ends of the two limiting rods (261) away from the limiting plates (263).

6. The movable circular saw protective cover according to claim 5, characterized in that: The limiting hole (262) is an internal threaded hole, and the limiting rod (261) is provided with an external thread that matches the limiting hole (262).

7. The movable circular saw protective cover according to claim 6, characterized in that: The limiting plate (263) is provided with a connection hole (2631), and the connection hole (2631) is provided with an internal thread matching the external thread of the limiting rod (261).

8. The movable circular saw protective cover according to claim 7, characterized in that: The limiting rod (261) is provided with a scale line (2611).

9. The movable circular saw protective cover according to claim 2, characterized in that: The top plate (25) is provided with a chip outlet (27).

10. The movable circular saw protective cover according to claim 1, characterized in that: A smooth wear-resistant layer (211) is provided at the lower end of the side plate (21) close to the table plate (a).

Images