CN219292815U - High security electric hand drill - Google Patents

Abstract

The utility model relates to a high security electric hand drill, including the shell, set up in the handle of shell and rotate the drill bit that sets up in the shell, the shell cover of sliding is equipped with the protection section of thick bamboo, the protection section of thick bamboo can cover the drill bit, the shell still slides along the protection section of thick bamboo direction of sliding and is provided with the limit assembly, the limit assembly can slide or be fixed in the shell, the protection section of thick bamboo can slide the butt or break away from the limit assembly, after the hole reaches required degree of depth, the protection section of thick bamboo butt limit assembly, thereby reduced the probability that the drilling excessively leads to the electric drill striking to panel, and then reduced the probability that the electric hand drill damaged. The electric hand drill has the function of improving self safety of the electric hand drill.

Description

High security electric hand drill

Technical Field

The application relates to the technical field of drilling tools, in particular to a high-safety electric hand drill.

Background

In the modern building construction process, the used tools are various, and the electric hand drill is one of them and is often used in the drilling work of plates and walls.

Among the prior art, the electric hand drill is including electric drill shell generally, set up in the handle of shell and rotate the drill bit that sets up in the shell, and the drill bit is including rotating the unit head of connecting in the shell and setting firmly in the drilling rod of unit head, and handle department is provided with the button that is used for driving the power supply and opens and close, when using, aims at the place that needs to punch with the drill bit, thereby presses the button again and starts the drill bit, exerts pressure simultaneously and makes the drill bit creep into.

In view of the above-mentioned related art, the inventor believes that the diameter of the drill rod is generally smaller than the diameter of the power head, so when drilling a plate, the power is excessive because the thickness of the plate body is limited and the strength is not easy to be controlled manually, so the power head is easy to strike the plate after the drill rod drills through the plate, and the electric drill is easy to be damaged.

Disclosure of Invention

In order to reduce the probability that the power head is impacted to improve electric hand drill self security, this application provides a high security electric hand drill.

The application provides a high security electric hand drill adopts following technical scheme:

the utility model provides a high security electric hand drill, includes the shell, sets up in the handle of shell and rotates the drill bit that sets up in the shell, the cover is slided to the shell is equipped with the protection section of thick bamboo, the protection section of thick bamboo can cover the drill bit, the shell is still followed the protection section of thick bamboo slides the direction and is provided with the limit assembly that slides, the limit assembly can slide or be fixed in the shell, the protection section of thick bamboo can slide the butt or break away from the limit assembly.

Through adopting above-mentioned technical scheme, before drilling, drive limit subassembly slides to the suitable position and fixes, the distance between limit subassembly and the protection section of thick bamboo is equivalent to the drill bit and need the distance that drills this moment, start the drill bit later and drill, the protection section of thick bamboo deviates from the one end butt in panel of limit subassembly this moment, along with the drilling of drill bit, the protection section of thick bamboo slides gradually and is close to limit subassembly, after the hole reaches required degree of depth, protection section of thick bamboo butt limit subassembly, thereby the probability that the excessive electric drill that leads to drilling strikes panel has been reduced, and then the probability that the electric hand drill damaged has been reduced, the security of electric hand drill self has been improved, and the protection section of thick bamboo coats the drill bit simultaneously, thereby the probability that the piece splashes to the external injury staff has been reduced when drilling, the security of staff has been improved.

Optionally, the spacing subassembly is including spacing ring and gag lever post, the gag lever post is followed the guard barrel slides the direction and slides the cover and locate the shell, the gag lever post slides and wears to locate the gag lever post, the shell is followed a plurality of spacing grooves have been seted up to the direction of shifting of gag lever post, the gag lever post can slide and insert or break away from the spacing groove.

Through adopting above-mentioned technical scheme, when drilling, drive spacing ring slides to the suitable position, and the drive gag lever post slides and inserts corresponding spacing inslot again to fixed with the spacing ring, later drill, when boring to required degree of depth, the guard cylinder supports the spacing ring, thereby has reduced the electric hand drill and has continuously drilled the probability that strikes the drill bit.

Optionally, the shell is followed the stop collar slip direction has seted up first spout, the spacing groove all sets up in first spout bottom, the gag lever post is located inside the spout.

Through adopting above-mentioned technical scheme, the stop collar slides along first spout through the gag lever post, has reduced the stop collar and has taken place to rotate to make the probability of gag lever post skew spacing groove.

Optionally, a holding plate is fixed at one end of the limiting rod, which is away from the shell.

Through adopting above-mentioned technical scheme, hold the board drive gag lever post and slide and insert or break away from the spacing groove, convenient and fast.

Optionally, an elastic ring is arranged between the protection cylinder and the distance limiting component, the protection cylinder is arranged at one end of the elastic ring, which is away from the distance limiting component, the elastic ring is slidably sleeved on the shell along the sliding direction of the protection cylinder, and the elastic ring can be slidably abutted or separated from the distance limiting component.

Through adopting above-mentioned technical scheme, after the hole is bored and is got to reach required degree of depth, the protection section of thick bamboo butt to the elastic ring earlier, then the elastic ring butt to the spacing ring again, compare in the direct butt of protection section of thick bamboo in the spacing ring, the elastic ring offsets partial impact force through self elasticity to the probability that the protection section of thick bamboo damaged has been reduced.

Optionally, the shell is followed the elastic ring slides the direction and has seted up the second spout, the elastic ring is provided with the slider, the slider slide set up in the second spout.

By adopting the technical scheme, the elastic ring is guided by the second chute, so that the sliding is more stable.

Optionally, a buffer spring is arranged in the second chute, and the buffer spring is connected between the sliding block and the inner wall of the second chute.

By adopting the technical scheme, the impact force from the protection cylinder is counteracted by the elasticity of the buffer spring and the elasticity of the elastic ring, so that the damage probability of the protection cylinder is further reduced.

Optionally, the protection cylinder is detachably connected to the elastic ring.

Through adopting above-mentioned technical scheme, be convenient for change the protection section of thick bamboo, protection section of thick bamboo is connected with the elastic ring simultaneously, has reduced when drilling work is suspended, the probability that the protection section of thick bamboo drops from the shell.

In summary, the present application includes at least one of the following beneficial technical effects:

1. thereby preset the drilling distance in advance as required through adjusting the spacing subassembly, reduced and bored the excessive probability that leads to the drill bit to strike panel, and then improved the security of electric hand drill self.

2. The impact force from the protection cylinder is counteracted by the elastic force of the elastic ring and the buffer spring, so that the damage probability of the protection cylinder is reduced.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present application.

Fig. 2 is a cross-sectional view of the whole structure of the present embodiment.

Fig. 3 is a cross-sectional view of another angle structure of this embodiment.

Reference numerals illustrate: 1. a housing; 2. a handle; 3. a drill bit; 301. a power head; 302. a drill rod; 4. a protective cylinder; 5. a distance limiting assembly; 501. a limiting ring; 502. a limit rod; 6. a first chute; 7. a limit groove; 8. a mounting groove; 9. a drive spring; 10. a holding plate; 11. an elastic ring; 12. a buffer spring; 13. a second chute; 14. a slide block; 15. and (3) mounting a plate.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-3.

The embodiment of the application discloses a high-safety electric hand drill.

The utility model provides a high security electric hand drill, refer to fig. 1, fig. 2 and fig. 3, including shell 1, set firmly in handle 2 of shell 1 perpendicularly and rotate the drill bit 3 that sets up in shell 1, drill bit 3 is including rotating the unit head 301 of connecting in shell 1 and connect in the drilling rod 302 of unit head 301, shell 1 outer wall is equipped with guard cylinder 4 along the axial cover that slides, guard cylinder 4 can cladding drill bit 3, shell 1 still slides along guard cylinder 4 slip direction and is provided with spacing subassembly 5, spacing subassembly 5 can slide or be fixed in shell 1, guard cylinder 4 can slide the butt or break away from spacing subassembly 5, before drilling, drive spacing subassembly 5 slides to the suitable position and fix, the distance between spacing subassembly 5 and the guard cylinder 4 is equivalent to the distance that the drill bit 3 needs to creep into this moment, then start drill bit 3 drills, guard cylinder 4 deviates from the one end butt in panel this moment, as drill bit 3 creep into, drill rod 4 gradually is close to spacing subassembly 5, after the hole reaches required degree of depth, guard cylinder 4 butt spacing subassembly 5, thereby the probability of having reduced power drill bit 3 has been reduced, thereby the safety of the electric hand drill has been carried out, and the safety has improved, and the probability of damaging the electric hand drill is carried out by the operator, and the safety has improved, and the safety has been damaged.

Referring to fig. 1, 2 and 3, the distance limiting assembly 5 comprises a limiting ring 501 arranged on a shell 1 and a limiting rod 502 arranged on the limiting ring 501, the limiting ring 501 is slidably sleeved on the shell 1 along the sliding direction of a protection barrel 4, the limiting rod 502 radially slides along the limiting ring 501 and penetrates through the limiting ring 501, a first sliding groove 6 is formed in the sliding direction of the limiting ring 501 on the side wall of the shell 1, a plurality of limiting grooves 7 are formed in the bottom of the first sliding groove 6 along the sliding direction of the limiting ring 501, the limiting rod 502 can be slidably inserted into or separated from the limiting grooves 7, when drilling is carried out, the limiting ring 501 is driven to slide to a proper position, the limiting rod 502 is driven to be slidably inserted into the corresponding limiting grooves 7, so that the limiting ring 501 is fixed, then drilling is carried out, when the drilling to a required depth is carried out, the protection barrel 4 abuts against the limiting ring 501, so that the probability that an electric hand drill continuously drills into the drill bit 3 is reduced, and meanwhile, the limiting ring 501 slides along the first sliding groove 6, so that the limiting ring 502 rotates along the limiting ring 501, and the probability that the limiting rod 502 deviates from the limiting groove 7 is reduced;

referring to fig. 1, fig. 2 and fig. 3, the retaining bar 502 has set firmly the grip plate 10 deviating from shell 1 one end, mounting groove 8 has been seted up to spacing ring 501 lateral wall, spacing bar 502 is located mounting groove 8, the mounting hole has been seted up in the penetration of mounting groove 8 diapire, spacing bar 502 radially slides along spacing ring 501 and sets up in the mounting hole, the mounting groove 8 inner wall is provided with actuating spring 9 between the spacing bar 502 lateral wall, the mounting plate 15 has set firmly to spacing bar 502 lateral wall, actuating spring 9 one end fixed connection is in mounting plate 15, actuating spring 9's the other end fixed connection is in mounting groove 8 diapire, actuating spring 9 drives spacing bar 502 through mounting plate 15 and slides towards spacing groove 7, the probability that spacing bar 502 slides and breaks away from spacing groove 7 in the drilling process has been reduced, hold simultaneously grip plate 10 drive spacing bar 502 slides and inserts or break away from spacing groove 7, convenient and fast.

Referring to fig. 1, 2 and 3, an elastic ring 11 is arranged between a protection cylinder 4 and a distance limiting component 5, the elastic ring 11 is made of rubber, the protection cylinder 4 is detachably connected to one end of the elastic ring 11, which is away from the distance limiting component 5, the elastic ring 11 is slidably sleeved on a shell 1 along the sliding direction of the protection cylinder 4, the elastic ring 11 can be slidably abutted against or separated from a limiting ring 501, a second sliding groove 13 is formed in the shell 1 along the sliding direction of the elastic ring 11, the second sliding groove 13 is a T-shaped groove, a sliding block 14 is fixedly arranged on the inner ring of the elastic ring 11, the sliding block 14 is a T-shaped sliding block 14, the sliding block 14 is slidably arranged in the second sliding groove 13, a buffer spring 12 is arranged in the second sliding groove 13, the buffer spring 12 is connected between the sliding block 14 and the inner wall of the second sliding groove 13, one end of the buffer spring 12 is fixedly connected to the sliding block 14, the other end of the buffer spring 12 is fixedly connected to one end of the second sliding groove 13, which is away from the drill bit 3, and the buffer spring 12 drives the elastic ring 11 to slide towards the protection cylinder 4 through elasticity;

when the hole is drilled to the required depth, the protection barrel 4 is firstly abutted to the elastic ring 11, then the elastic ring 11 is abutted to the limiting ring 501, compared with the protection barrel 4 which is directly abutted to the limiting ring 501, the elastic ring 11 is matched with the buffer spring 12 to offset part of impact force from the protection barrel 4 through self elasticity, so that the damage probability of the protection barrel 4 is reduced, the protection barrel 4 is detachably connected with the elastic ring 11, the falling probability of the protection barrel 4 from the shell 1 when the drilling operation is suspended is reduced, and meanwhile, the protection barrel 4 is convenient to replace.

The implementation principle of the embodiment is as follows: before drilling, the protection cylinder 4 is mounted at one end of the elastic ring 11, which is away from the limiting ring 501, and then the position of the limiting ring 501 is adjusted according to the thickness of the plate, so that when one end of the protection cylinder 4, which is away from the elastic cylinder, and the drill rod 302 on the power head 301 are simultaneously abutted against the plate, the distance between the limiting ring 501 and the elastic ring 11 is equal to the depth required by drilling, and then the limiting rod 502 is driven to be inserted into the corresponding limiting groove 7, so that the limiting ring 501 is fixed, and then drilling work is started.

The foregoing is a preferred embodiment of the present application, and is not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. The utility model provides a high security electric hand drill, includes shell (1), sets up in handle (2) of shell (1) and rotates drill bit (3) that set up in shell (1), its characterized in that: the casing (1) slides and overlaps and is equipped with guard cylinder (4), guard cylinder (4) can cover drill bit (3), casing (1) is still followed guard cylinder (4) slip direction slides and is provided with spacing subassembly (5), spacing subassembly (5) can slide or be fixed in casing (1), guard cylinder (4) can slide butt or break away from spacing subassembly (5).

2. The high safety electric hand drill according to claim 1, wherein: spacing subassembly (5) are including spacing ring (501) and gag lever post (502), spacing ring (501) are followed guard cylinder (4) slip direction cover is located shell (1), gag lever post (502) slip wear to locate spacing ring (501), shell (1) are followed a plurality of spacing groove (7) have been seted up in spacing ring (501) slip direction, gag lever post (502) can slip insert or break away from spacing groove (7).

3. The high safety electric hand drill according to claim 2, wherein: the shell (1) is provided with a first chute (6) along the sliding direction of the limiting ring (501), the limiting grooves (7) are all formed in the bottom of the first chute (6), and the limiting rod (502) is located inside the chute.

4. A high safety electric hand drill according to claim 3, wherein: one end of the limiting rod (502) deviating from the shell (1) is fixedly provided with a holding plate (10).

5. The high safety electric hand drill according to claim 1, wherein: an elastic ring (11) is arranged between the protection cylinder (4) and the distance limiting assembly (5), the protection cylinder (4) is arranged at one end, deviating from the distance limiting assembly (5), of the elastic ring (11), the elastic ring (11) is arranged on the shell (1) in a sliding mode along the sliding direction of the protection cylinder (4), and the elastic ring (11) can be in sliding abutting connection or separation with the distance limiting assembly (5).

6. The high safety electric hand drill of claim 5, wherein: the shell (1) is provided with a second sliding groove (13) along the sliding direction of the elastic ring (11), the elastic ring (11) is provided with a sliding block (14), and the sliding block (14) is arranged in the second sliding groove (13) in a sliding mode.

7. The high safety electric hand drill of claim 6, wherein: a buffer spring (12) is arranged in the second sliding groove (13), and the buffer spring (12) is connected between the sliding block (14) and the inner wall of the second sliding groove (13).

8. The high safety electric hand drill of claim 7, wherein: the protection cylinder (4) is detachably connected with the elastic ring (11).

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