1. The utility model provides a safety device for electric pick, includes casing (1), its characterized in that: the middle part of the shell (1) is rotatably connected with a punch (2), a protective cover (3) is arranged on the outer side below the punch (2), a support rod (4) is hinged on the inner side of the protective cover (3), a slide rod (5) is hinged on the left side of the support rod (4), a telescopic block (6) is fixedly connected with the middle upper end of the slide rod (5), a fixed block (7) is arranged above the telescopic block (6), a slide block (8) is arranged below the telescopic block (6), a handle (9) is fixedly connected with the upper right end of the slide rod (5), a sliding chute (10) is arranged below the fixed block (7), cambered surface supporting plates (11) are arranged on the left and right sides of the upper end of the punch (2), a threaded rod (12) is fixedly connected with the right side of the cambered surface supporting plate (11), a gear (13) is meshed above the threaded, the right-hand member of threaded rod (12) is provided with observation groove (15), the right-hand member fixedly connected with connecting rod (16) of threaded rod (12), the upper end of connecting rod (16) is rotated and is connected with dwang (17), the inboard of dwang (17) is provided with hemisphere (18), the left side of hemisphere (18) is provided with carousel (19), the below of carousel (19) is rotated and is connected with pivot (20), the below of dwang (17) is rotated and is connected with slip ring (21), the lower extreme of pivot (20) is rotated and is connected with power component (22), the upper end of pivot (20) is rotated and is connected with rotor (23).

2. The safety protection device for the electric pick according to claim 1, wherein: the upper end of safety cover (3) rotates and is connected with the slide, and slide below sliding connection has spout (10), is provided with the spring between slide and spout (10).

3. The safety protection device for the electric pick according to claim 1, wherein: a spring is arranged below the sliding block (8).

4. The safety protection device for the electric pick according to claim 1, wherein: the right end of the threaded rod (12) is fixedly connected with a pointer.

5. The safety protection device for the electric pick according to claim 1, wherein: and scale marks are arranged inside the observation groove (15).

6. The safety protection device for the electric pick according to claim 1, wherein: the gear (13) and the left side of the sector gear (14) are fixedly connected with a shell (1).

7. The safety protection device for the electric pick according to claim 1, wherein: the middle part of the connecting rod (16) is rotatably connected with a rotating point, and the left side of the rotating point is fixedly connected with the shell (1).

Background

The electric pick is a double-insulation hand-held electric tool, has the characteristics of safety, reliability, high efficiency, convenient operation and the like, is widely applied to pipeline laying, mechanical installation, water supply and drainage facility construction, interior decoration, port facility construction and other construction engineering construction, and is suitable for pick drills or other appropriate accessories, such as chisels, shovels and the like, to carry out operations of crushing, chiseling, excavating, slotting, cutting and the like on concrete, masonry structures and asphalt pavements.

The existing electric pick can generate a large amount of dust and noise in the construction process, so that the environment is polluted, certain influence is caused on the health of workers, the punch of the electric pick is easy to loosen due to long-time vibration in the using process, the punch flies out to cause serious personal injury accidents, no protective measures are taken, the use is unsafe, and resources are wasted.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a safety protection device for an electric pick, which has the advantages of dust prevention, noise prevention, automatic protection, safe use, resource saving, environment protection and the like, and solves the problems of dust flying, high noise, unsafe use, no protection measures, resource waste and environment pollution.

(II) technical scheme

In order to achieve the purposes of dust prevention, noise prevention, automatic protection, safe use, resource saving and environment protection, the invention provides the following technical scheme: the middle part of the shell is rotatably connected with a punch, the outer side below the punch is provided with a protective cover, the inner side of the protective cover is hinged with a support rod, the left side of the support rod is hinged with a sliding rod, the middle upper end of the sliding rod is fixedly connected with a telescopic block, the upper part of the telescopic block is provided with a fixed block, the lower part of the telescopic block is provided with a slide block, the right upper end of the sliding rod is fixedly connected with a handle, the lower part of the fixed block is provided with a slide groove, the left and right sides of the upper end of the punch are provided with cambered surface supporting plates, the right side of the cambered surface supporting plate is fixedly connected with a threaded rod, the upper part of the threaded rod is meshed with a gear, the upper part of the gear is meshed with a fan-shaped tooth piece, the right end of the threaded rod is provided with an observation groove, the right end of the threaded rod is fixedly connected with a connecting rod, the upper end of the connecting rod is rotatably connected with a rotating rod, the inner side of the rotating rod is provided with a hemisphere, the left side of the hemisphere is provided with a rotating disc, the rotating shaft is rotatably connected below the rotating disc, the lower part of the rotating rod is rotatably connected with a sliding ring, the lower end of the rotating shaft is rotatably connected with a power assembly, and the upper end of the rotating shaft is rotatably connected with a rotator.

Preferably, the upper end of safety cover is rotated and is connected with the slide, and the safety cover is transparent material, is convenient for observe the behavior, and slide below sliding connection has the spout, is provided with the spring between slide and the spout, and the slide drives the safety cover and slides, prevents that the safety cover overlength is unfavorable for electric pick work.

Preferably, a spring is arranged below the sliding block.

Preferably, the right end of the threaded rod is fixedly connected with a pointer.

Preferably, the inside scale mark that is provided with of observation groove, whether the inspection of the operating condition inspection of observation drift is not hard up of being convenient for.

Preferably, the gear and the left side of the sector gear are fixedly connected with a shell.

Preferably, the middle part of the connecting rod is rotatably connected with a rotating point, and the left side of the rotating point is fixedly connected with a shell.

(III) advantageous effects

Compared with the prior art, the invention provides a safety protection device for an electric pick, which has the following beneficial effects:

1. this safety device for electric pick, it rotates to drive the drift through power component, the drift is because of meeting hard thing strong vibrations in the course of the work, make the drift take place the skew, the drift drives the motion of cambered surface layer board, the cambered surface layer board drives the rotation of fan-shaped tine, fan-shaped tine drives gear revolve, the gear drives the threaded rod flexible, the threaded rod drives the pointer motion, the pointer is observed in observing the groove, indicate operating personnel, arouse to notice, the threaded rod drives the connecting rod and rotates, the connecting rod drives the dwang and rotates, the dwang drives hemisphere motion, hemisphere change carousel speed, when drift vibration amplitude is too big, lower part carousel speed slows down, it slows down to drive drift slew velocity, thereby protect operating personnel, automatic protection has been reached, effect safe in utilization.

2. This safety device for electric pick, it slides to drive the slider through the handle, the slider drives the telescopic link motion, the telescopic link slides downwards and meets fixed block compression gliding after-fixing, the slider drives the slide bar and slides, the slide bar drives the bracing piece and rotates, the bracing piece rotates and opens the safety cover, protect the work area of drift, and simultaneously, in the electric pick working process, dustproof noise control device wholly slides in the spout, with adaptation drift length, thereby reach dustproof noise control, resources are saved, the effect of environmental protection.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the dustproof and noise-proof apparatus according to the present invention;

FIG. 3 is a schematic structural view of a punch looseness detecting apparatus according to the present invention;

fig. 4 is a schematic diagram of the motion state of the transmission device of the present invention.

In the figure: 1. a housing; 2. a punch; 3. a protective cover; 4. a support bar; 5. a slide bar; 6. a telescopic rod; 7. a fixed block; 8. a slider; 9. a handle; 10. a chute; 11. a cambered surface supporting plate; 12. a threaded rod; 13. a gear; 14. a sector-shaped tooth sheet; 15. an observation tank; 16. a connecting rod; 17. rotating the rod; 18. a hemisphere; 19. a turntable; 20. a rotating shaft; 21. a slip ring; 22. a power assembly; 23. a rotator.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the middle of the housing 1 is rotatably connected with a punch 2, a protective cover 3 is arranged on the outer side below the punch 2, a support rod 4 is hinged on the inner side of the protective cover 3, a slide rod 5 is hinged on the left side of the support rod 4, an expansion block 6 is fixedly connected to the middle upper end of the slide rod 5, a fixed block 7 is arranged above the expansion block 6, a slider 8 is arranged below the expansion block 6, a spring is arranged below the slider 8, a handle 9 is fixedly connected to the upper right end of the slide rod 5, a chute 10 is arranged below the fixed block 7, a sliding plate is rotatably connected to the upper end of the protective cover 3, the protective cover is made of a transparent material, so that the working condition can be observed conveniently, the chute 10 is slidably connected to the lower side of the sliding plate, the spring is arranged between the sliding plate and the chute 10, the sliding plate drives the protective cover 3 to slide, and the protective cover 3 is prevented from being unfavorable for electric pick working.

The upper end left and right sides of drift 2 is provided with cambered surface layer board 11, the right side fixedly connected with threaded rod 12 of cambered surface layer board 11, 12 right-hand member fixedly connected with pointers of threaded rod, the meshing of the top of threaded rod 12 has gear 13, gear 13 and 14 left sides fixedly connected with casings 1 of sector gear, the meshing of the top of gear 13 has fan-shaped tooth piece 14, the right-hand member of threaded rod 12 is provided with observation groove 15, the inside scale mark that is provided with of observation groove 15, be convenient for observe whether 2 operating condition of drift inspects is not hard up.

The right-hand member fixedly connected with connecting rod 16 of threaded rod 12, the middle part of connecting rod 16 is rotated and is connected with the turning point, the left side fixedly connected with casing 1 of turning point, the upper end of connecting rod 16 is rotated and is connected with dwang 17, the inboard of dwang 17 is provided with hemisphere 18, the left side of hemisphere 18 is provided with carousel 19, the below of carousel 19 is rotated and is connected with pivot 20, the below of dwang 17 is rotated and is connected with slip ring 21, the lower extreme of pivot 20 is rotated and is connected with power component 22, the upper end of pivot 20 is rotated and is connected with rotor 23.

The working principle is as follows: the punch 2 is driven to rotate by the power component 22, the punch 2 strongly vibrates due to hard objects in the working process, so that the punch 2 deviates, the punch 2 drives the arc supporting plate 11 to move, the arc supporting plate 11 drives the fan-shaped tooth piece 14 to rotate, the fan-shaped tooth piece 14 drives the gear 13 to rotate, the gear 13 drives the threaded rod 12 to stretch and retract, the threaded rod 12 drives the pointer to move, the pointer is observed in the observation groove 15, the operator is prompted to notice, the threaded rod 12 drives the connecting rod 16 to rotate, the connecting rod 16 drives the rotating rod 17 to rotate, the rotating rod 17 drives the hemisphere 18 to move, the hemisphere 18 changes the speed of the rotating disk 19, when the vibration amplitude of the punch 2 is too large, the speed of the lower rotating disk 19 is reduced, the rotating speed of the punch 2 is reduced, the operator is protected, and the purposes of automatic protection and safe use are achieved.

Drive slider 8 through handle 9 and slide, slider 8 drives the motion of telescopic link 6, telescopic link 6 glides downwards and meets 7 compression gliding after-fixes of fixed block, slider 8 drives slide bar 5 and slides, slide bar 5 drives bracing piece 4 and rotates, bracing piece 4 rotates and opens the safety cover, protect the work area of drift 2, and simultaneously, in the electric pick working process, dustproof noise control device wholly slides in spout 10, with adaptation drift length, thereby reach dustproof noise control, resources are saved, the purpose of environmental protection.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.