Protective cover structure of saw blade and angle grinder thereof

Abstract

The utility model relates to the technical field of angle grinders, and discloses a saw blade protective cover structure and an angle grinder thereof, the saw blade protective cover structure comprises a protective cover body, a hoop is installed at the center position of the rear end of the protective cover body in a matched mode, and a fixing bolt used for fastening is arranged on the hoop in a matched mode. Lengthened covers used for improving the protection effect are arranged at the two ends of the outer side of the circumference of the protection cover body. According to the angle grinder protective cover, the two lengthened covers are arranged at the two ends of the outer side of the circumference of the protective cover body in a sliding mode, so that the angle grinder protective cover is more flexible and convenient to use, and when an angle grinder is used, the two lengthened covers can be adjusted to stretch out towards the two sides according to actual requirements, so that the protective effect of the protective cover is further improved, protective dead corners are avoided, and operation safety is improved; and due to the arrangement of the limiting assembly, the lengthened cover can be adjusted in a sliding mode only by pinching third connecting rods on the two sides to enable clamping blocks to be separated from clamping grooves, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of angle grinders, and in particular relates to a protective cover structure of a saw blade and an angle grinder thereof. Background Art

[0002] Among many electric tools, electric angle grinders are widely used. In addition to cutting stainless steel, alloy steel, ordinary carbon steel profiles, pipes, or grinding workpieces of flash, burrs, welds, and large-diameter stainless steel after plasma cutting, they can also cut bricks, stones, asbestos corrugated boards and other building materials by replacing special grinding wheels; replacing circular wire brushes and sanding discs can be used to remove rust and sand metal surfaces; replacing polishing wheels can polish the surfaces of various materials. In order to prevent the debris from flying everywhere, angle grinders are equipped with protective covers.

[0003] Existing protective covers are usually semicircular and have a limited protection range. As a result, under some conditions of use of the angle grinder, the semicircular protective cover may have certain blind spots, which may cause certain safety hazards in the operation. In addition, the inner wall of the existing protective cover is relatively smooth, so that after debris flies into the inner wall of the protective cover under high-speed cutting, the debris flies out at a relatively fast speed, which may cause the flying debris to collide with objects or the ground and splash again, which not only poses certain safety hazards but also makes it inconvenient to clean the debris.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A protective cover structure for a saw blade comprises a protective cover body, a clamp is mounted at the rear center of the protective cover body, and a fixing bolt for tightening is arranged on the clamp, and an extended cover for improving the protective effect is arranged at both ends of the outer side of the protective cover body;

[0007] The protective cover body is provided with installation grooves at both ends of the outer side of the circumference, and the two extended covers are provided with installation convex strips on the inner side of the circumference. The two extended covers are arranged one by one on the outer side of the circumference of the protective cover body, and the installation convex strips arranged on the inner sides of the two extended covers are slidably connected with the corresponding inner walls of the installation grooves, and a limit assembly for adjusting and locking the extended covers is also provided between the protective cover body and the extended covers.

[0008] As a preferred embodiment of the present utility model, mounting holes are relatively arranged at both sides between the inner and outer walls at both ends of the protective cover body, the limiting assembly includes a rod structure, and fixed seats are fixedly connected at the positions of the inner walls at both ends of the protective cover body corresponding to the mounting holes, the rod structure includes connecting rod one, connecting rod two, and connecting rod three, the connecting rod two passes through the mounting hole, and the connecting rod one is fixedly connected to the connecting rod two at one end inside the protective cover body, and the connecting rod three is fixedly connected to the connecting rod two at one end outside the protective cover body.

[0009] As a preferred embodiment of the utility model, clamping blocks are symmetrically arranged on both sides of the second connecting rod, and the second connecting rod and the clamping blocks are slidably matched with the inner wall of the mounting hole.

[0010] As a preferred embodiment of the present utility model, the end of the connecting rod one away from the connecting rod two passes through the center position between the inner and outer walls of the fixing seat away from the end of the connecting rod two, and the end of the connecting rod one away from the connecting rod two is fixedly connected to an end plate, and a spring is provided on the outer side of the circumference of the connecting rod one between the connecting rod two and the inner wall of the fixing seat.

[0011] As a preferred embodiment of the utility model, arc-shaped slide grooves are relatively arranged between the inner and outer walls on both sides of the extended cover, and the limiting assembly also includes a card slot, which is evenly spaced and relatively arranged on the inner walls on both sides of the slide groove, the connecting rod two and the connecting rod three cooperate with the slide groove, and the card block cooperates with the card slot.

[0012] As a preferred embodiment of the utility model, buffer protrusions are evenly spaced between two sides of the circumferential inner wall of the protective cover body, and the cross-section of the buffer protrusion is in the shape of a semicircular protrusion.

[0013] An angle grinder comprises the saw blade protection cover structure described in any one of the above embodiments.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. Two sliding extension covers arranged at both ends of the outer side of the circumference of the protective cover body make the device more flexible and convenient to use. When the angle grinder is in use, the two extension covers can be adjusted to extend to both sides according to actual needs, thereby further improving the protective effect of the protective cover, avoiding blind spots in protection, and improving operation safety. In addition, the setting of the limit assembly allows the extension cover to be slidably adjusted by pinching the connecting rods on both sides to disengage the card block from the card slot, which is convenient and quick.

[0016] 2. The semicircular buffer protrusions are evenly spaced to buffer and block the debris generated by cutting and grinding, avoiding splashing caused by the debris sliding on the smooth inner wall of the protective cover body, further improving the safety of the operation.

[0017] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the attached picture:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0021] Figure 3 For the utility model Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 For the utility model Figure 2 Enlarged view of point B in the middle;

[0023] Figure 5 It is a cross-sectional structural schematic diagram of the utility model;

[0024] Figure 6 For the utility model Figure 5 Enlarged view of point C in the middle;

[0025] Figure 7 This is a schematic diagram of the rod structure of the utility model.

[0026] In the figure: 10, protective cover body; 11, mounting groove; 12, mounting hole; 20, extended cover; 21, mounting convex strip; 22, slide groove; 23, clamping groove; 30, clamping hoop; 31, fixing bolt; 41, fixing seat; 42, connecting rod 1; 43, end plate; 44, connecting rod 2; 45, connecting rod 3; 46, clamping block; 47, spring; 50, buffer protrusion. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0028] A protective cover structure for a saw blade, such as Figure 1-2 As shown, it includes a protective cover body 10, a clamp 30 is installed at the rear center of the protective cover body 10, and a fixing bolt 31 for fastening is provided on the clamp 30, and an extended cover 20 for improving the protective effect is provided at both ends of the outer side of the protective cover body 10;

[0029] like Figure 2As shown, mounting grooves 11 are provided at both ends of the outer side of the circumference of the protective cover body 10, and mounting ridges 21 are provided on the inner sides of the circumference of the two extended covers 20. The two extended covers 20 are arranged one by one on the outer side of the circumference of the protective cover body 10, and the mounting ridges 21 arranged on the inner sides of the two extended covers 20 are slidably connected with the corresponding inner walls of the mounting grooves 11, and a limit assembly for adjusting and locking the extended covers 20 is also provided between the protective cover body 10 and the extended covers 20.

[0030] Its function is that the two slidingly mounted extended covers 20 arranged at the two ends of the outer side of the circumference of the protective cover body 10 make the device more flexible and convenient to use. When the angle grinder is used, the two extended covers 20 can be adjusted to extend to both sides according to actual needs, thereby further improving the protective effect of the protective cover, avoiding blind spots in protection, and improving operational safety.

[0031] like Figure 3 , Figure 7 As shown, mounting holes 12 are relatively arranged at both sides between the inner and outer walls at both ends of the protective cover body 10, and the limiting assembly includes a rod structure. Fixed seats 41 are fixedly connected at the positions corresponding to the inner walls of the two ends of the protective cover body 10 and the mounting holes 12. The rod structure includes a connecting rod 1 42, a connecting rod 2 44, and a connecting rod 3 45. The connecting rod 2 44 passes through the mounting hole 12, and the connecting rod 1 42 is fixedly connected to the connecting rod 2 44 at one end on the inner side of the protective cover body 10, and the connecting rod 3 45 is fixedly connected to the connecting rod 2 44 at one end on the outer side of the protective cover body 10.

[0032] like Figure 3 , Figure 7 As shown, blocks 46 are symmetrically provided on both sides of the second connecting rod 44 , and the second connecting rod 44 and the blocks 46 are slidably fitted with the inner wall of the mounting hole 12 .

[0033] like Figure 3 , Figure 7 As shown, one end of connecting rod 1 42 away from connecting rod 2 44 passes through the center position between the inner and outer walls of the fixing seat 41 away from the end of connecting rod 2 44, and the one end of connecting rod 1 42 away from connecting rod 2 44 is fixedly connected to the end plate 43, and a spring 47 is provided on the outer side of the circumference of connecting rod 1 42 between connecting rod 2 44 and the inner wall of the fixing seat 41.

[0034] Its function is that, with the setting of the limit assembly, the extended cover 20 can be slidably adjusted by simply pinching the connecting rods 45 on both sides to make the block 46 disengage from the slot 23, which is convenient and quick.

[0035] like Figure 4As shown, arc-shaped slide grooves 22 are relatively arranged between the inner and outer walls on both sides of the extended cover 20, and the limiting assembly also includes a card slot 23, which is evenly spaced and relatively arranged on the inner walls on both sides of the slide groove 22, the connecting rod 24 and the connecting rod 3 45 cooperate with the slide groove 22, and the card block 46 cooperates with the card slot 23.

[0036] like Figure 5-6 As shown, buffer protrusions 50 are evenly spaced between the two sides of the inner wall of the circumference of the protective cover body 10, and the cross section of the buffer protrusion 50 is in the shape of a semicircular protrusion.

[0037] Its function is that the semicircular buffer protrusions 50 arranged evenly at intervals can buffer and block the debris generated by cutting and grinding, avoid splashing caused by the debris sliding on the smooth inner wall of the protective cover body 10, and further improve the safety of the operation.

[0038] An angle grinder comprises the saw blade protection cover structure of any one of the above embodiments.

[0039] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A protective cover structure for a saw blade, comprising a protective cover body (10), characterized in that: A clamp (30) is installed at the rear center of the protective cover body (10), and a fixing bolt (31) for fastening is arranged on the clamp (30). Extended covers (20) for improving the protective effect are arranged at both ends of the outer circumference of the protective cover body (10); The protective cover body (10) is provided with mounting grooves (11) at both ends of the outer circumference of the protective cover body (10), and the inner circumference of the two extended covers (20) is provided with mounting convex strips (21). The two extended covers (20) are arranged on the outer circumference of the protective cover body (10) in a one-to-one correspondence, and the mounting convex strips (21) arranged on the inner sides of the two extended covers (20) are connected to the inner walls of the corresponding mounting grooves (11) in a sliding manner, and a limit assembly for adjusting and locking the extended covers (20) is also provided between the protective cover body (10) and the extended covers (20).

2. The saw blade protective cover structure according to claim 1, characterized in that: Mounting holes (12) are arranged at opposite sides between the inner and outer walls of both ends of the protective cover body (10), and the limiting assembly includes a rod structure. Fixed seats (41) are fixedly connected at positions corresponding to the inner walls of both ends of the protective cover body (10) and the mounting holes (12). The rod structure includes a connecting rod 1 (42), a connecting rod 2 (44), and a connecting rod 3 (45). The connecting rod 2 (44) passes through the mounting hole (12), and the connecting rod 1 (42) is fixedly connected to the connecting rod 2 (44) at one end located on the inner side of the protective cover body (10), and the connecting rod 3 (45) is fixedly connected to the connecting rod 2 (44) at one end located on the outer side of the protective cover body (10).

3. The saw blade protective cover structure according to claim 2, characterized in that: Blocks (46) are symmetrically arranged on both sides of the second connecting rod (44), and the second connecting rod (44) and the block (46) are slidably matched with the inner wall of the mounting hole (12).

4. The saw blade protective cover structure according to claim 3, characterized in that: The end of the connecting rod one (42) away from the connecting rod two (44) passes through the center position between the inner and outer walls of the fixed seat (41) away from the end of the connecting rod two (44), and the end of the connecting rod one (42) away from the connecting rod two (44) is fixedly connected to the end plate (43), and a spring (47) is provided on the outer side of the circumference of the connecting rod one (42) and located between the connecting rod two (44) and the inner wall of the fixed seat (41).

5. The saw blade protective cover structure according to claim 4, characterized in that: An arc-shaped slide groove (22) is relatively arranged between the inner and outer walls on both sides of the extended cover (20), and the limiting component also includes a clamping groove (23). The clamping groove (23) is evenly spaced and relatively arranged on the inner walls on both sides of the slide groove (22). The second connecting rod (44) and the third connecting rod (45) are matched with the slide groove (22), and the clamping block (46) is matched with the clamping groove (23).

6. The saw blade protective cover structure according to claim 1, characterized in that: Buffer protrusions (50) are evenly spaced between two sides of the circumferential inner wall of the protective cover body (10), and the cross section of the buffer protrusion (50) is in the shape of a semicircular protrusion.

7. An angle grinder, characterized in that: A protective cover structure for a saw blade comprising any one of claims 1-6.

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