Reversible, detachable guard for circular saw

Abstract

The utility model discloses a round saw protection cover of overturning convenient to dismount, concretely relates to the round saw protection cover technical field, including the protection tray, be provided with position adjusting mechanism on the protection tray, be provided with the protection cover body on position adjusting mechanism, the surface of protection cover body is provided with a plurality of insertion slot, the inside symmetry of insertion slot is provided with two expansion slots, the inside installation of expansion slot has the sliding rod, and one end of sliding rod near insertion slot installs the triangular block, and the outside of sliding rod is equipped with first spring, and the rear of protection cover body is provided with motor body, and the outside installation of motor body has a plurality of concave frame, and the inside installation of concave frame has the top rod, and one end of top rod near insertion slot installs the connecting rod. The utility model discloses through component bevel cooperation and spring self -lock realize exempt from tool installation, and press the push board drive sleeve and open lock block cooperation spring reset can one -key unlocking, and the efficiency of dismounting is improved significantly, and it has efficient quick -disassembly and operation convenience.

Description

Technical Field

[0001] This utility model relates to the technical field of circular saw protective covers, and more specifically, to a rotatable and easily detachable circular saw protective cover. Background Technology

[0002] Common circular saw protective covers can only adjust the tilt angle but lack quick-release functionality, which causes significant inconvenience in practical applications. This is especially true in scenarios where frequent saw blade replacements are needed to adapt to different cutting tasks, or where the protective cover itself is damaged due to accidental collisions or wear and requires repair or replacement. In these cases, the protective cover must be completely disassembled. The root of the problem lies in the current mainstream fixing method: the protective cover is either fastened to the motor housing with multiple bolts or simply molded as a single piece with the motor housing using an injection molding process. Both of these structural designs significantly increase the difficulty and complexity of disassembly, making what should be a relatively simple operation time-consuming and laborious.

[0003] In summary, to facilitate the assembly and disassembly of the protective cover, it is necessary to address the difficulty in disassembly caused by the fixing method, so that the protective cover can be quickly assembled and disassembled with a single action. Utility Model Content

[0004] The problem that this utility model provides, a reversible and easily detachable protective cover for circular saws, aims to solve is that the root cause of the difficulty in assembling and disassembling the protective cover lies in the current mainstream fixing methods, which are either fastened with screws or integrally molded by injection molding. Both of these structural designs ultimately greatly increase the difficulty and complexity of disassembly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a reversible and easily detachable protective cover for a circular saw, including a protective tray, a position adjustment mechanism on the protective tray, a protective cover body on the position adjustment mechanism, multiple insertion slots on the surface of the protective cover body, two telescopic slots symmetrically opened inside the insertion slots, a sliding rod installed inside the telescopic slots, a triangular block installed at one end of the sliding rod near the insertion slot, a first spring sleeved on the outside of the sliding rod, a motor body located at the rear of the protective cover body, multiple concave frames installed on the outside of the motor body, a top rod installed inside the concave frames, a connecting rod installed at one end of the top rod near the insertion slot, a semi-circular block installed at one end of the connecting rod near the insertion slot, the semi-circular block inserted into the insertion slot, the triangular block fitting against the semi-circular block, a sleeve sleeved on the outside of the connecting rod, and a reset mechanism provided on the concave frames and the top rod.

[0006] In a preferred embodiment, the position adjustment mechanism is connected to the protective cover. The position adjustment mechanism includes a height adjustment component and a deflection adjustment component. The height adjustment component is used to adjust the height of the saw blade and the protective cover, and the deflection adjustment component is used to adjust the angle between the saw blade and the protective cover.

[0007] In a preferred embodiment, the height adjustment assembly includes a triangular seat mounted on the upper end of the protective tray, an L-shaped plate mounted on the surface of the triangular seat, a lifting plate mounted on the end of the L-shaped plate away from the triangular seat, and a first locking screw mounted on the surface of the protective cover. The first locking screw is threadedly connected to the protective cover and slidably connected to the lifting plate.

[0008] In a preferred embodiment, the deflection adjustment assembly includes a connecting plate mounted on the surface of the protective cover, a second locking screw mounted on the surface of the connecting plate, and a deflection plate mounted on the upper end of the protective tray. The second locking screw is threadedly connected to the protective cover and slidably connected to the deflection plate.

[0009] In a preferred embodiment, the reset end of the reset mechanism is connected to the push rod. The reset mechanism includes an unlocking component and a push rod component. The unlocking component is used to release the fixation between the motor body and the protective cover, and the push rod component is used to control the displacement of the semicircular block.

[0010] In a preferred embodiment, the unlocking assembly includes a strip-shaped push plate mounted on the end of the top rod away from the connecting rod and a second spring mounted on the inner side of the concave frame.

[0011] In a preferred embodiment, the push rod assembly includes a reset plate mounted on the surface of the strip push plate, and the end of the second spring away from the connecting rod is connected to the reset plate.

[0012] In a preferred embodiment, a handle is mounted on the surface of the motor body, a docking cylinder is mounted on the surface of the motor body, a circular saw is mounted on the output end of the motor body, and a slot is provided on the surface of the protective cover, with the end of the docking cylinder near the protective cover inserted into the slot.

[0013] The beneficial effects of this utility model are as follows:

[0014] This utility model achieves tool-free installation through the automatic guiding cooperation of the semi-circular block inclined surface and the triangular block inclined surface, as well as the elastic locking of the first spring. During disassembly, pressing the strip-shaped push plate drives the sleeve to open the triangular block, and the second spring resets to achieve instant unlocking, which greatly improves the efficiency of saw blade replacement or maintenance. The overall design takes into account both high efficiency and quick disassembly and convenient operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the motor body structure of this utility model.

[0017] Figure 3 This is a rear view structural diagram of the protective cover of this utility model.

[0018] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle.

[0019] Figure 5 This utility model Figure 3 Enlarged view of point B in the middle.

[0020] Figure 6 This is a schematic diagram of the quick-release component structure of this utility model.

[0021] The attached figures are labeled as follows: 1. Protective tray; 11. Protective cover; 12. Insertion slot; 13. Telescopic slot; 14. Sliding rod; 15. Triangular block; 16. First spring; 17. Motor body; 18. Concave frame; 19. Top rod; 20. Connecting rod; 21. Semicircular block; 22. Sleeve; 23. Handle; 24. Connecting cylinder; 25. Circular saw; 26. Slot; 311. Strip push plate; 312. Second spring; 321. Reset plate; 411. Triangular seat; 412. L-shaped plate; 413. Lifting plate; 414. First locking screw; 421. Connecting plate; 422. Second locking screw; 423. Deflection plate. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Refer to the instruction manual appendix Figures 1 to 6 A reversible and easily detachable protective cover for a circular saw includes a protective tray 1. The protective tray 1 has a position adjustment mechanism, and the position adjustment mechanism has a protective cover body 11. The surface of the protective cover body 11 has multiple insertion slots 12. Two telescopic grooves 13 are symmetrically formed inside each insertion slot 12. A sliding rod 14 is installed inside each telescopic groove 13. A triangular block 15 is installed at one end of the sliding rod 14 near the insertion slot 12. A first spring 16 is sleeved on the outside of the sliding rod 14. A motor body 17 is provided at the rear of the motor body 17. Multiple concave frames 18 are installed on the outside of the motor body 17. A push rod 19 is installed inside the concave frame 18. A connecting rod 20 is installed at the end of the push rod 19 near the insertion slot 12. A semi-circular block 21 is installed at the end of the connecting rod 20 near the insertion slot 12. The semi-circular block 21 is inserted into the insertion slot 12. The triangular block 15 fits against the semi-circular block 21. A sleeve 22 is sleeved on the outside of the connecting rod 20. A reset mechanism is provided on the concave frame 18 and the push rod 19.

[0024] It should be noted that the insertion slot 12, telescopic slot 13, sliding rod 14, and triangular block 15 form the locking structure on the protective cover 11 side, while the concave frame 18, top rod 19, connecting rod 20, and semicircular block 21 form the unlocking and locking structure on the motor body 17 side. The sleeve 22 plays the role of unlocking. Under normal conditions, the first spring 16 pushes the sliding rod 14 and triangular block 15 to extend towards the center of the insertion slot 12, so that the triangular block 15 abuts against the plane of the semicircular block 21, thereby achieving automatic locking.

[0025] It is worth noting that the key to the quick-release mechanism lies in the engagement of the inclined surfaces of the triangular block 15 and the semicircular block 21. During installation, the inclined surface of the semicircular block 21 presses against the inclined surface of the triangular block 15, causing it to retract into the telescopic groove 13. Once the semicircular block 21 passes the triangular block 15, the triangular block 15, under the action of the first spring 16, pops out and abuts against the flat surface of the semicircular block 21, thus locking it in place. During disassembly, the push rod 19 is pulled by the reset mechanism, causing the semicircular block 21 to continue moving into the insertion groove 12. At this time, the inclined surface of the triangular block 15 is pressed by the sleeve 22, causing it to retract into the telescopic groove 13. This continues until the triangular block 15 passes the sleeve 22, at which point the triangular block 15 retracts into the telescopic groove 13. The rounded end of corner block 15 will insert into the chamfer of top rod 19. At this time, the strip push plate 311 is released, and the top rod 19 is pushed back to its original position by the pushing force of the second spring 312. When the top rod 19 drives the connecting rod 20 to reset, the sleeve 22 is pushed to move towards the semicircular block 21 by the triangular block 15 until the semicircular block 21 is in contact with the sleeve 22. At this time, the rounded end of the triangular block 15 will be squeezed by the sleeve 22 and move to the outside of the sleeve 22. As the top rod 19 continues to move, the rounded end of the triangular block 15 will slide along the outside of the sleeve 22 until it is completely separated from the sleeve 22 and the semicircular block 21.

[0026] Refer to the instruction manual appendix Figures 1 to 3 The position adjustment mechanism is connected to the protective cover 11. The position adjustment mechanism includes a height adjustment component and a deflection adjustment component. The height adjustment component is used to adjust the height of the saw blade and the protective cover 11, and the deflection adjustment component is used to adjust the angle between the saw blade and the protective cover 11.

[0027] It should be noted that the position adjustment mechanism independently controls the saw blade cutting depth through the height adjustment component and independently controls the saw blade cutting angle through the deflection adjustment component. The two work together to achieve precise adjustment of the spatial position of the cover.

[0028] Refer to the instruction manual appendix Figure 3 The height adjustment assembly includes a triangular seat 411 mounted on the upper end of the protective tray 1, an L-shaped plate 412 mounted on the surface of the triangular seat 411, a lifting plate 413 mounted on the end of the L-shaped plate 412 away from the triangular seat 411, and a first locking screw 414 mounted on the surface of the protective cover 11. The first locking screw 414 is threadedly connected to the protective cover 11 and slidably connected to the lifting plate 413.

[0029] It should be noted that the lifting plate 413 forms a rigid support with the triangular seat 411 through the L-shaped plate 412. After loosening the first locking screw 414, the protective cover 11 can slide up and down along the lifting plate 413 to adjust the height. Tightening the first locking screw 414 can lock the position. The sliding groove on the lifting plate 413 and the first locking screw 414 are fitted with a clearance to ensure smooth adjustment.

[0030] Refer to the instruction manual appendix Figure 3 The deflection adjustment assembly includes a connecting plate 421 mounted on the surface of the protective cover 11, a second locking screw 422 mounted on the surface of the connecting plate 421, and a deflection plate 423 mounted on the upper end of the protective tray 1. The second locking screw 422 is threadedly connected to the protective cover 11 and slidably connected to the deflection plate 423.

[0031] It should be noted that the connecting plate 421 is fixed to the protective cover 11. After loosening the second locking screw 422, the protective cover 11 can rotate relative to the deflection plate 423 around the axis of the second locking screw 422 to adjust the angle. Tightening the second locking screw 422 can lock the angle. The arc groove on the deflection plate 423 cooperates with the second locking screw 422 to achieve continuous angle adjustment.

[0032] Refer to the instruction manual appendix Figures 1 to 6 The reset end of the reset mechanism is connected to the push rod 19. The reset mechanism includes a release component and a push rod component. The release component is used to release the fixation between the motor body 17 and the protective cover 11. The push rod component is used to control the displacement of the semicircular block 21.

[0033] It should be noted that the unlocking component is used to trigger the unlocking action, the push rod component is used to transmit the unlocking action to the semicircular block 21, and the reset mechanism is integrated inside the concave frame 18. During operation, it can directly act on the push rod 19 to control the displacement of the semicircular block 21.

[0034] It is worth noting that the reset mechanism enables one-click unlocking. With a single operation, the locking component can be released, and the push rod component can control the semicircular block 21 to exit the insertion slot 12, instantly releasing the fixed connection between the protective cover 11 and the motor body 17.

[0035] Refer to the instruction manual appendix Figure 6 The unlocking assembly includes a strip-shaped push plate 311 installed on the end of the top rod 19 away from the connecting rod 20 and a second spring 312 installed on the inner side of the concave frame 18.

[0036] It should be noted that the strip push plate 311 provides a large pressing area for easy operation. The second spring 312 keeps the push rod 19 locked in the normal state. When the strip push plate 311 is pressed, the push rod 19 compresses the second spring 312 and moves towards the insertion slot 12, driving the semicircular block 21 to exit the locked position.

[0037] Refer to the instruction manual appendix Figure 6 The push rod assembly includes a reset plate 321 mounted on the surface of the strip push plate 311, and the end of the second spring 312 away from the connecting rod 20 is connected to the reset plate 321.

[0038] It should be noted that the reset plate 321 directly transmits the linear motion of the strip push plate 311 to the push rod 19. One end of the second spring 312 is fixed to the concave frame 18, and the other end acts on the reset plate 321, ensuring that the push rod 19 can automatically reset to the locked position after the pressing pressure is removed.

[0039] Refer to the instruction manual appendix Figures 1 to 3 A handle 23 is mounted on the surface of the motor body 17, a docking cylinder 24 is mounted on the surface of the motor body 17, a circular saw 25 is mounted on the output end of the motor body 17, and a slot 26 is opened on the surface of the protective cover 11. The end of the docking cylinder 24 near the protective cover 11 is inserted into the interior of the slot 26.

[0040] It should be noted that the docking cylinder 24 is inserted into the slot 26 of the protective cover 11 to achieve the initial radial positioning and auxiliary support of the motor body 17 and the protective cover 11, and to share the force of the locking mechanism.

[0041] Working principle: When installing the protective cover 11, align the docking cylinder 24 of the motor body 17 with the slot 26 of the protective cover 11 and insert it. At the same time, the semicircular block 21 on the motor body 17 is inserted into the corresponding insertion slot 12 of the protective cover 11. During this process, the conical end face of the semicircular block 21 first contacts and presses the inclined surface of the triangular block 15 in the insertion slot 12, forcing the triangular block 15 to overcome the elastic force of the first spring 16 and slide inward along the telescopic groove 13. As the semicircular block 21 continues to advance until its flat part crosses the three... When the rounded end of corner block 15 is reached, the first spring 16 immediately pushes the sliding rod 14 and the triangular block 15 to pop outwards. At this time, the tip of the triangular block 15 abuts against the rear end of the flat surface of the semicircular block 21, forming a mechanical lock. At the same time, the docking cylinder 24 is fully inserted into the slot 26 to achieve radial positioning, thereby firmly locking the protective cover 11 onto the motor body 17. When disassembly is required, press the strip push plate 311 in the concave frame 18 on the motor body 17 to push the top rod 19 and the connecting rod 20 to move towards the insertion slot 12, thereby driving the semicircular block 21 and The sleeve 22 extends deeper into the insertion groove 12. At this time, the front end of the sleeve 22 contacts and presses the inclined surface of the triangular block 15, forcing the triangular block 15 to overcome the elastic force of the first spring 16 and slide inward toward the telescopic groove 13, so that its tip completely disengages from the obstruction of the semi-circular block 21 plane. After the triangular block 15 passes the sleeve 22, the round end of the triangular block 15 will insert into the chamfer of the push rod 19. At this time, the strip push plate 311 is released, and the push rod 19 is pushed back to its original position by the pushing force of the second spring 312. The push rod 19 drives the connecting rod. When 20 is reset, the sleeve 22 is pushed towards the semicircular block 21 by the triangular block 15 until the semicircular block 21 is in contact with the sleeve 22. At this time, the round end of the triangular block 15 will be squeezed by the sleeve 22 and move to the outside of the sleeve 22. As the push rod 19 continues to move, the round end of the triangular block 15 will slide along the outside of the sleeve 22 until it is completely separated from the sleeve 22 and the semicircular block 21, so that the semicircular block 21 exits the insertion slot 12, and the connecting sleeve 24 disengages from the slot 26, thereby realizing the quick disassembly of the protective cover 11.

[0042] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A reversible, easy-to-disassemble protective cover for a circular saw, characterized in that: The device includes a protective tray (1), a position adjustment mechanism, a protective cover (11), and a plurality of insertion slots (12) on the surface of the protective cover (11). Two telescopic slots (13) are symmetrically opened inside the insertion slots (12). A sliding rod (14) is installed inside the telescopic slots (13). A triangular block (15) is installed at one end of the sliding rod (14) near the insertion slot (12). A motor body (17) is provided behind the protective cover (11). A plurality of concave frames (18) are installed on the outside of the motor body (17). A top rod (19) is installed inside the concave frame (18). A connecting rod (20) is installed at one end of the top rod (19) near the insertion slot (12). A semi-circular block (21) is installed at one end of the connecting rod (20) near the insertion slot (12). The semi-circular block (21) is inserted into the insertion slot (12), and the triangular block (15) fits against the semi-circular block (21).

2. The reversible, detachable guard for a circular saw according to claim 1, wherein: The position adjustment mechanism is connected to the protective cover (11). The position adjustment mechanism includes a height adjustment component and a deflection adjustment component. The height adjustment component is used to adjust the height of the saw blade and the protective cover (11), and the deflection adjustment component is used to adjust the angle between the saw blade and the protective cover (11).

3. The reversible, detachable guard for a circular saw according to claim 2, wherein: The height adjustment assembly includes a triangular seat (411) mounted on the upper end of the protective tray (1), an L-shaped plate (412) mounted on the surface of the triangular seat (411), a lifting plate (413) mounted on the end of the L-shaped plate (412) away from the triangular seat (411), and a first locking screw (414) mounted on the surface of the protective cover (11). The first locking screw (414) is threadedly connected to the protective cover (11), and the first locking screw (414) is slidably connected to the lifting plate (413).

4. The reversible and easily detachable circular saw protective cover according to claim 3, characterized in that: The deflection adjustment assembly includes a connecting plate (421) mounted on the surface of the protective cover (11), a second locking screw (422) mounted on the surface of the connecting plate (421), and a deflection plate (423) mounted on the upper end of the protective tray (1). The second locking screw (422) is threadedly connected to the protective cover (11), and the second locking screw (422) is slidably connected to the deflection plate (423).

5. The reversible, detachable disc-saw guard of claim 1, wherein: A reset mechanism is provided on the concave frame (18) and the top rod (19). The reset end of the reset mechanism is connected to the top rod (19). The reset mechanism includes a release locking component and a push rod component. The release locking component is used to release the fixation between the motor body (17) and the protective cover (11). The push rod component is used to control the displacement of the semicircular block (21).

6. The reversible and easily detachable circular saw protective cover according to claim 5, characterized in that: The unlocking assembly includes a strip push plate (311) mounted on the end of the top rod (19) away from the connecting rod (20) and a second spring (312) mounted on the inside of the concave frame (18).

7. The reversible, detachable disc-saw guard of claim 6, wherein: The push rod assembly includes a reset plate (321) mounted on the surface of the strip push plate (311), and the end of the second spring (312) away from the connecting rod (20) is connected to the reset plate (321).

8. The reversible, detachable disc-saw guard of claim 1, wherein: A handle (23) is installed on the surface of the motor body (17), a docking cylinder (24) is installed on the surface of the motor body (17), a circular saw (25) is installed at the output end of the motor body (17), a slot (26) is opened on the surface of the protective cover (11), and the end of the docking cylinder (24) near the protective cover (11) is inserted into the slot (26).

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