CN219379068U

CN219379068U - Lengthening structure of electric tool

Info

Publication number: CN219379068U
Application number: CN202320611280.4U
Authority: CN
Inventors: 章长荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-27
Filing date: 2023-03-27
Publication date: 2023-07-21
Anticipated expiration: 2033-03-27

Abstract

The utility model discloses an electric tool lengthening structure. The electric tool comprises a first lengthened structural body, wherein the first lengthened structural body comprises a first outer shell body and a first transmission unit penetrating through the first outer shell body, the first transmission unit comprises a first transmission head and a second transmission head which are exposed out of the first outer shell body, the first transmission head is in transmission connection with an output end of the electric tool, and the second transmission head is in transmission connection with an operation unit. The electric tool can adapt to a narrow working environment through the lengthening structure, the adaptation degree of the lengthening structure and the electric tool is high, the transmission purpose can be effectively and stably realized, the structure is simple, and the installation is convenient.

Description

Lengthening structure of electric tool

Technical Field

The utility model relates to the technical field of electric tools, in particular to an electric tool lengthening structure.

Background

The electric drill is a drilling machine using electricity as power, is a conventional product in electric tools, and is also an electric tool product with the largest demand. In the prior art, the size of the electric drill is usually standard, and is divided into a plurality of types with different lengths, and the purpose of the length distinction is to adapt to the thickness of a drilling object, but in the practical use process, the use environment can not meet the construction condition, if the position needing to be drilled is located in a narrow space, if related objects cannot be removed, the drilling operation cannot be normally performed, and the applicant proposes the application for this.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides an extension structure of the electric tool, so that the electric tool can further expand the application range and reduce the limit of the working environment.

In order to solve the technical problems, the utility model is solved by the following technical scheme:

the utility model provides an electric tool extension structure, includes first extension structure main part, first extension structure main part include first shell body and run through dispose in first transmission unit on the first shell body, first transmission unit including expose in first transmission head and the second transmission head outside the first shell body, first transmission head is connected with electric tool output transmission, the second transmission head is connected with the operation unit transmission.

In the above aspect, preferably, the operation unit is a power tool operation head, a drill chuck, or a screw head.

In the above scheme, preferably, a second elongated structural body is further configured between the operation unit and the first elongated structural body, the second elongated structural body includes a second outer housing and a second transmission unit penetrating through the second outer housing, the second transmission unit includes a third transmission head and a fourth transmission head exposed out of the second outer housing, the third transmission head is in transmission connection with the second transmission head, and the fourth transmission head is in transmission connection with the operation unit.

In the above scheme, preferably, the first transmission head is adapted to the self-carried drill chuck of the electric tool, and the second transmission head includes a plurality of grooves adapted to the balls, and is used for installing the drill chuck, the screw fastener head or the third transmission head.

In the above scheme, preferably, the third transmission head is provided with a plurality of through holes, and balls are correspondingly arranged in the through holes;

the outer end of the third transmission head is slidably provided with a first sliding sleeve for limiting the balls, and a spring is arranged between the first sliding sleeve and a protruding part or a bearing of the third transmission head.

In the above aspect, preferably, the first sliding sleeve includes a groove and a protruding edge, when no external force acts on the first sliding sleeve, the protruding edge is located at the ball to limit the ball, and when the first sliding sleeve is slid inward, the ball is unlocked.

In the above scheme, preferably, the third transmission head includes a cavity communicated with the through hole.

In the above scheme, preferably, a limit hoop for limiting the first sliding sleeve is arranged at the outer edge of the third transmission head.

In the above scheme, preferably, a second sliding sleeve is slidably mounted on the second outer casing, and the second sliding sleeve includes an inner edge corresponding to the first sliding sleeve.

In the above scheme, preferably, the second outer shell includes a limiting head, the second sliding sleeve includes a through slot for the limiting head to move, and a limiting wall matched with the limiting head is included at the through slot to limit the outward movement range of the second sliding sleeve.

The beneficial effects of the utility model are as follows:

the electric tool can adapt to a narrow working environment through the lengthening structure, the adaptation degree of the lengthening structure and the electric tool is high, the transmission purpose can be effectively and stably realized, the structure is simple, and the installation is convenient.

Drawings

FIG. 1 is a schematic view of a first elongated structure according to the present utility model.

Fig. 2 is a schematic view showing an exploded state of a first elongated structural body according to the present utility model.

FIG. 3 is a schematic diagram of a second elongated structure according to the present utility model.

FIG. 4 is a schematic view showing an exploded view of a second elongated structural body according to the present utility model.

Fig. 5 is a schematic view of a third driving head according to the present utility model.

FIG. 6 is a schematic view of the internal structure of a second elongated structural body according to the present utility model.

FIG. 7 is a schematic cross-sectional view of a second elongated structural body according to the present utility model.

Fig. 8 is a schematic view of a second sliding sleeve according to the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the attached drawings and detailed description:

referring to fig. 1-8, an extension structure of a power tool includes a first extension structure body 1, where the first extension structure body 1 is shown in fig. 1 and 2, and is a basic extension structure, and includes a first outer housing 11 and a first transmission unit 12 disposed through the first outer housing 11.

In this embodiment, the first outer casing 11 is hollow, and includes openings at both ends so that both ends of the first transmission unit 12 extend out of the first outer casing 11.

For the first transmission unit 12, the main body part of the first transmission unit is in a long rod-shaped structure and comprises a first transmission head 13 and a second transmission head 14 which are respectively exposed at two ends of the first outer shell 11, as shown in fig. 1, the left end is a first transmission head 13 which is used for being in transmission connection with the output end of the electric tool; at the right end is a second drive head 14 for driving connection with the operating unit.

For the second transmission head 14, which comprises grooves 141 adapted to the balls, this type of connection can be seen as "second transmission unit" in chinese patent application CN217915139U filed earlier by the applicant.

For the operation unit, it may be an electric drill, an electric tool operation head, a drill chuck or a screw head connected to a common electric drill, or may be a second elongated structural body 2 as mentioned below, and the second elongated structural body 2 is assembled to further lengthen the length of the elongated structural body when the length of the first elongated structural body 1 still cannot meet the working environment.

The second elongated structural body 2 includes a second outer case 21 and a second transmission unit 22 penetrating the second outer case 21, as shown in fig. 3, 4, 6, and 7.

The second casing 21 is identical to the first casing 11 in that it is hollow at its inside and includes openings at both ends so that both ends of the second transmission unit 22 extend outside the second casing 21.

For the second transmission unit 22, the main body part is in a long rod-shaped structure, and comprises a third transmission head 23 and a fourth transmission head 24, which are respectively exposed at two ends of the second outer shell 21, when the second lengthened structural body 2 is required to be connected with the first lengthened structural body 1, the third transmission head 23 is used for being in transmission connection with the second transmission head 14, the fourth transmission head 24 is used for being in transmission connection with the operation unit, and the structure of the fourth transmission head 24 is consistent with that of the second transmission head 14.

For the third transmission head 23, a plurality of through holes 231 are formed in the third transmission head 23, balls 232 are correspondingly arranged in the through holes 231, a first sliding sleeve 233 for limiting the balls 232 is slidably arranged at the outer end of the third transmission head 23, a spring 234 is arranged between the first sliding sleeve 233 and a protruding portion or bearing of the third transmission head 23, the first sliding sleeve 233 comprises a groove 235 and a protruding edge 236, when no external force acts, the protruding edge 236 is located at the position of the balls 232 to limit the balls 232, and after the balls 232 are slid inwards, the balls 232 are unlocked.

In this embodiment, the third transmission head 23 includes a cavity that is communicated with the through hole 231, a limiting collar 3 that is used for limiting the first sliding sleeve 233 is disposed on an outer edge of the third transmission head 23, a second sliding sleeve 4 is slidably mounted on the second outer housing 21, the second sliding sleeve 4 includes an inner edge 41 corresponding to the first sliding sleeve 233, the second outer housing 21 includes a limiting head 5, the second sliding sleeve 4 includes a through slot 42 that can allow the limiting head 5 to move, and a limiting wall 43 that can be matched with the limiting head 5 is disposed at the through slot 42 to limit an outer moving range of the second sliding sleeve 4.

For the third transmission head, reference may be made to the "first transmission unit" in chinese patent application CN217915139U, which the applicant has previously proposed.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. An electric tool extension structure, its characterized in that: the electric tool comprises a first lengthened structural body, wherein the first lengthened structural body comprises a first outer shell body and a first transmission unit penetrating through the first outer shell body, the first transmission unit comprises a first transmission head and a second transmission head which are exposed out of the first outer shell body, the first transmission head is in transmission connection with an output end of the electric tool, and the second transmission head is in transmission connection with an operation unit.

2. The power tool extension structure of claim 1, wherein: the operation unit is an electric tool operation head, a drill chuck or a screw fastener.

3. The power tool extension structure of claim 1, wherein: the operation unit is characterized in that a second lengthened structural body is further arranged between the operation unit and the first lengthened structural body, the second lengthened structural body comprises a second outer shell body and a second transmission unit penetrating through the second outer shell body, the second transmission unit comprises a third transmission head and a fourth transmission head which are exposed out of the second outer shell body, the third transmission head is in transmission connection with the second transmission head, and the fourth transmission head is in transmission connection with the operation unit.

4. A power tool extension structure according to claim 3, wherein: the first transmission head is matched with the self-carrying drill chuck of the electric tool, and the second transmission head comprises a plurality of grooves matched with the balls and is used for installing the drill chuck, the screw buckle head or the third transmission head.

5. The power tool extension structure according to claim 3 or 4, wherein: the third transmission head is provided with a plurality of through holes, and balls are correspondingly arranged in the through holes;

6. The power tool extension structure of claim 5, wherein: the first sliding sleeve comprises a groove body and a protruding edge, when no external force acts on the first sliding sleeve, the protruding edge is located at the ball to limit the ball, and after the first sliding sleeve is slid inwards, the ball is unlocked.

7. The power tool extension structure of claim 5, wherein: the third transmission head comprises a cavity communicated with the through hole.

8. The power tool extension structure of claim 5, wherein: and a limiting hoop for limiting the first sliding sleeve is arranged at the outer edge of the third transmission head.

9. The power tool extension structure of claim 8, wherein: and a second sliding sleeve is slidably arranged on the second outer shell, and the second sliding sleeve comprises an inner edge corresponding to the first sliding sleeve.

10. The power tool extension structure of claim 9, wherein: the second shell comprises a limiting head, the second sliding sleeve comprises a through groove for the limiting head to move, and a limiting wall matched with the limiting head is arranged at the through groove to limit the outer moving range of the second sliding sleeve.