CN217412549U - Impact drill - Google Patents

Abstract

The utility model relates to a percussion drill, include: the torsion adjusting mechanism comprises a torsion cup which is rotatably arranged outside the shell, a plurality of light guide channels are arranged on the torsion cup at intervals along the circumferential direction, different torsion marks are respectively arranged on each light guide channel, and the torsion adjusting mechanism can rotate to enable any one light guide channel to be located on the same straight line with the first indicating lamp of the shell. The torsion mark on the torsion cup is a solid part, so the solid torsion mark cannot be worn out. The first indicator light can illuminate the torque mark for displaying the torque of the output shaft, so that the use of a user is facilitated.

Description

Impact drill

Technical Field

The application relates to the field of electric tools, in particular to a torque-adjustable impact drill.

Background

In current power tools, such as hammer drills, torque adjustment is typically accomplished by a rotatable torque cup. Scales representing different torques are marked on the torque cup to display the torque magnitude or level of the impact drill. The housing of the hammer drill also has an indicating member, which is located on the centerline of the hammer drill and generally shown as an arrow, and when a certain scale on the torque cup corresponds to the arrow, i.e., represents the torque magnitude or level of the current hammer drill, the torque cup is rotated so that a different scale on the torque cup is aligned with the arrow of the indicating member to change the torque value of the hammer drill.

The scales on the torsion cup are usually printed by ink to display scale values, but the ink is easy to fall off, and the scales on the torsion cup are easy to polish after being used for a period of time, so that a user cannot distinguish the scales on the torsion cup, and great inconvenience is brought to the user. Therefore, the scales on the torque cup of the impact drill need to be improved so as to solve the technical problem that the scales on the torque cup are easy to eliminate.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the weak point among the above-mentioned prior art and provide an impact and bore, the torsion scale value that should strike the brill has overcome the defect that adopts printing ink printing to be worn away easily to can illuminate the torsion scale, the person of facilitating the use clearly knows the torsion that strikes the brill.

This impact drill includes:

a housing;

the driving assembly is arranged in the shell;

an output shaft driven by the drive assembly;

the first indicator light is assembled on the shell;

the torsion adjusting mechanism is used for adjusting the torsion of the output shaft and comprises a torsion cup which is rotatably arranged outside the shell, a plurality of light guide channels are arranged at intervals along the circumferential direction of the torsion cup, and different torsion marks are respectively arranged on each light guide channel;

the torsion adjusting mechanism can rotate to enable any one of the light guide channels and the first indicator light of the shell to be located on the same straight line.

Furthermore, the torsion adjusting mechanism further comprises a housing, the housing is sleeved on the torsion cup, and light of the first indicator light can penetrate through the housing.

Furthermore, the torsion marks on the torsion cup are digital blocks, the housing is provided with a plurality of light-transmitting parts at intervals along the circumferential direction, and each light-transmitting part is in one-to-one correspondence with the digital blocks of the torsion cup;

furthermore, the number block protrudes out of the surface of the torsion cup, each light-transmitting part of the housing is hollowed to be the same number as the corresponding number block, and the number block can be at least partially embedded into the light-transmitting part of the housing.

Furthermore, the digital block is made of transparent materials, and the torque cup is made of opaque materials.

Further, the light guide channel is inwards recessed from the surface of the torque cup to form a groove extending along the axial direction of the torque cup.

Furthermore, the housing is made of transparent materials.

Furthermore, an indication mark is arranged on the casing, and the central line of the indication mark coincides with the axial symmetry line of the percussion drill.

Further, the first indicator light is located below the indicator mark, and a center line of the first indicator light is parallel to a center line of the indicator mark.

Further, still include the second pilot lamp, the second pilot lamp is located the below of torsion adjustment mechanism.

Has the advantages that:

the digital block forming the scales on the torque cup in the impact drill is an entity part, and is not formed by printing ink on the surface of the torque cup in the prior art, so that the entity digital block cannot be worn out, and the technical problem that the torque scale is easily worn out after the impact drill is used for a long time, and a user cannot distinguish the torque value is solved.

When the first indicator light is lightened, the light penetrates through the light guide channel and illuminates the number block on the light guide channel, and the light penetrates through the light-transmitting portion in the housing, so that a user can clearly see the number block on the torque cup in a dark environment, and the use of the user is facilitated.

Drawings

Fig. 1 is a schematic view of a percussion drill according to an embodiment of the present invention.

Fig. 2 is a schematic view of the impact drill without a housing according to an embodiment of the present invention.

Fig. 3 is a partial schematic view of another perspective of the hammer drill according to an embodiment of the present invention.

Fig. 4a is a schematic diagram of a torque cup in an embodiment of the present invention.

Fig. 4b is a schematic diagram of the assembly of the torsion cup and the number block according to the embodiment of the present invention.

Fig. 4c is a schematic diagram of a torque cup in an embodiment of the invention.

Fig. 5 is a partial enlarged view of the torque cup and the housing in an embodiment of the invention.

Description of reference numerals: percussion drilling-100; a housing-10; indication mark-11; a first indicator light-21; a second indicator light-22; a torsion adjusting mechanism-30; a torsion cup-31; a light-conducting channel-311; a housing-32; a light-transmitting portion-321; -33, a digital block; switch-4; a handle-5.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. As used in this application, the terms "first," "second," and the like, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

As shown in fig. 1 and 2, the percussion drill 100 of the present invention includes a casing 10, a driving assembly disposed in the casing 10, the driving assembly being used for driving an output shaft, a first indicator light 21 assembled to the casing 10, a torque adjusting mechanism 30, and a handle 5. The torque adjusting mechanism 30 includes a torque cup 31 rotatably installed outside the housing 10, the torque cup 31 is provided with a plurality of light guide channels 311 at intervals along the circumferential direction, and each light guide channel 311 is provided with a different torque identifier. In the present embodiment, the torsion indicator is embodied as a numeral block 33 displaying different numerals "1", "2", "3", and the like.

The torsion adjusting mechanism 30 can rotate to make any one of the light guide channels 311 be located on the same line with the first indicator light 21 of the housing 10. The light of the first indicator light 21 can illuminate the corresponding torsion sign through the light guide channel 311.

The number block 33 forming the scale on the torsion cup 31 is a solid part, and is not formed by printing ink on the surface of the torsion cup 31 in the prior art, so that the solid number block 33 cannot be worn out, and the technical problem that the torsion scale is easily worn out after the impact drill 100 is used for a long time, so that a user cannot distinguish the torsion value is solved.

When the first indicator light 21 is turned on, light passes through the light guide channel 311 and illuminates the number block 33 on the light guide channel 311, and the light passes through the light-transmitting portion 321 in the cover 32, so that a user can clearly see the number block 33 on the torque cup 31 in a dark environment, and the use by the user is facilitated.

The torque adjusting mechanism 30 further comprises a housing 32, the housing 32 is sleeved on the torque cup 31, and the light of the first indicator light can penetrate through the housing.

Specifically, the housing 32 is provided with a plurality of light-transmitting portions 321 at intervals along the circumferential direction, and each light-transmitting portion 321 corresponds to the number block 33 of the torsion cup 31 one by one.

In this embodiment, as shown in fig. 4a to 4c, the main body of the torsion adjusting mechanism 30 of the impact drill 100 is formed by one-shot injection molding on the torsion cup 31, the number block 33 on the torsion cup 31 is formed by two-shot injection molding, and the housing 32 is formed by three-shot injection molding. Light guide channel 311 is recessed inward from the surface of torsion cup 31 to form a groove extending in the axial direction of torsion cup 31. The number block 33 is placed in the light guide channel 311, and the number block 33 protrudes from the surface of the torque cup 31. Preferably, each light-transmitting portion 321 of the cover 32 is hollowed out to have the same number as the corresponding number block 33, so that, as shown in fig. 5, each number block 33 can be at least partially embedded into the light-transmitting portion 321 corresponding to the cover 32, and the cover 32 has a fixing effect on the number block 33. The light of the first indicator light 21 can penetrate through the hollow gap of the light-transmitting portion 321 of the housing 32, so that the user can clearly see the numerical value.

The torque adjusting mechanism 30 is rotated, and the torque cup 31 and the housing 32 are rotated together to switch to output different torques. The surface of the housing 10 is further provided with an indicator 11, embodied as an indicator arrow, as shown in fig. 3. The midline of the indicated arrow coincides with the axial symmetry line of the hammer drill 100. When the indicated arrow points to one of the number blocks 33 on the torque cup 31, the current torque value of the hammer drill 100 is indicated. In this embodiment, the torsion cup 31 is provided with 11 light guide channels 311, wherein the number blocks 33 on 8 light guide channels 311 are sequentially "1", "3", "5", "7", "9", "11", "13" and "15", and the other 3 light guide channels 311 are respectively provided with icons representing different operation modes, specifically, a screw locking mode, a drilling mode and an impact mode. In other embodiments, the number of the light-guiding channels 311 and the content of the digital block 33 may be adjusted according to actual needs.

In order to illuminate the number block 33 more clearly, the main portion of the torsion cup 31 is made of opaque material, and the number block 33 is made of transparent material.

The first indicator light 21 is arranged in the housing 10 and is positioned below the indicator 11, and the center line of the first indicator light 21 is parallel to the center line of the indicator 11. When the first indicator light 21 is turned on, the light passes through the light guide channel 311 corresponding to the indicator 11, and the number block 33 in the light guide channel 311 is turned on. Therefore, the number block 33 corresponding to the indicator 11 can be illuminated most clearly, so that the user can see the current torque value.

In the present embodiment, the first indicator light 21 is an LED light. The first indicator light 21 is activated by the switch 4 which controls the activation of the hammer drill 100. When the user presses the switch 4 and the percussion drill 100 starts to work, the first indicator light 21 is simultaneously triggered to light up the number block 33 on the torque cup 31.

In another embodiment, light-transmissive portion 321 of cover 32 may be a closed transparent window to reveal number block 33 disposed on torsion cup 31. Alternatively, the entire cover 32 may be made of a transparent material. Alternatively, the housing 32 may be provided with a through hole on the torsion cup 31 for receiving the number block 33.

The hammer drill 100 also includes a second indicator light 22. The second indicator light 22 is disposed below the torque adjusting mechanism 30 and above the switch 4, and when the user uses the impact drill 100 in a dark condition, the user can turn on the second indicator light 22 to illuminate the surrounding environment, so that the user can conveniently work.

Although the present application has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application, and all changes, substitutions and alterations that fall within the spirit and scope of the application are to be understood as being covered by the following claims.

Claims (10)

1. A percussion drill, comprising:

a housing;

the driving component is arranged in the shell;

an output shaft driven by the drive assembly;

the first indicator light is assembled on the shell;

the torsion adjusting mechanism is used for adjusting the torsion of the output shaft and comprises a torsion cup which is rotatably arranged outside the shell, a plurality of light guide channels are arranged at intervals along the circumferential direction of the torsion cup, and different torsion marks are respectively arranged on each light guide channel;

the torsion adjusting mechanism can rotate to enable any one of the light guide channels and the first indicator light of the shell to be located on the same straight line.

2. The percussion drill according to claim 1, wherein the torque adjustment mechanism further comprises a housing that fits over the torque cup, the housing being transparent to light from the first indicator light.

3. The percussion drill according to claim 2, wherein the torsion marks on the torsion cup are number blocks, the housing is provided with a plurality of light-transmitting portions at intervals in the circumferential direction, and each light-transmitting portion corresponds to one number block of the torsion cup.

4. The percussion drill according to claim 3, wherein the number block protrudes from the surface of the torque cup, each of the light-transmitting portions of the casing is hollowed out to have the same number as the corresponding number block, and the number block is at least partially embedded in the light-transmitting portion of the casing.

5. The percussion drill according to claim 4, wherein the digit block is transparent and the torque cup is opaque.

6. The percussion drill according to claim 1, wherein the light conducting channel is recessed inwardly from the surface of the torque cup forming a groove extending in the axial direction of the torque cup.

7. The percussion drill according to claim 2, wherein the casing is of transparent material.

8. The percussion drill according to claim 1, wherein an indicator is provided on the housing, the centre line of the indicator coinciding with the axial symmetry line of the percussion drill.

9. The percussion drill according to claim 8, wherein the first indicator light is located below the indicator mark, and a centerline of the first indicator light is parallel to a centerline of the indicator mark.

10. The hammer drill of claim 1, further comprising a second indicator light located below the torque adjustment mechanism.

Images