CN113043223A - Connecting structure of electric tool base and working head and electric tool - Google Patents
Connecting structure of electric tool base and working head and electric tool Download PDFInfo
- Publication number
- CN113043223A CN113043223A CN202110278970.8A CN202110278970A CN113043223A CN 113043223 A CN113043223 A CN 113043223A CN 202110278970 A CN202110278970 A CN 202110278970A CN 113043223 A CN113043223 A CN 113043223A
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- Prior art keywords
- working head
- electric tool
- ring body
- side end
- face
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 14
- 230000000994 depressogenic effect Effects 0.000 claims description 10
- 239000012634 fragment Substances 0.000 claims description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention relates to a connecting structure of a seat body and a working head of an electric tool, wherein the seat body and the working head of the electric tool are detachably connected in a replaceable manner through the connecting structure; one side of the working head, which is close to the base body, is provided with an inner ring body and an outer ring body, a plurality of connecting columns are arranged between the inner ring body and the outer ring body, a cavity in which the limit position clamping blocks are embedded in the axial direction is arranged between every two adjacent connecting columns which are close to the limit clamping blocks, and the two convex blocks are correspondingly arranged at the edge position of the side end surface of the inner ring body. The invention has the following advantages: the seat body can be quickly matched and connected with working heads with different functions through the connecting structure, and the multifunctional electric tool is quickly realized.
Description
The technical field is as follows:
the invention belongs to the field of electric tools, and particularly relates to a connecting structure of a base body and a working head of an electric tool and the electric tool.
Background art:
electric tools generally include electric wrenches, angle grinders, electric chain saws, saber saws, impact electric drills, electric grinders and the like, but the base and the working head of the existing electric tool are usually fixed by a plurality of screws and welding, so the matching between a plurality of different types of electric tools is poor, the electric tools cannot be used universally, each electric tool has a single function, if the base of the electric tool is provided, the working heads with different functions can be equipped, and the connection structure and the electric tool which are stably connected can be rapidly realized, so that the electric tool is certainly popular in the market.
The invention content is as follows:
the invention aims to overcome the defects and provides a connecting structure of a base body and a working head of an electric tool and the electric tool.
The purpose of the invention is realized by the following technical scheme: a connection structure of a base body and a working head of an electric tool realizes detachable replacement connection through the connection structure, the connection structure comprises two correspondingly arranged convex blocks arranged on the side end face of the working head close to the base body, two clamping grooves arranged on the side end face of the base body close to the working head and a limiting clamping block arranged on the side end face of the base body close to the working head, the limiting clamping block is arranged between the two clamping grooves, and the two convex blocks are correspondingly matched with the two clamping grooves;
an inner ring body and an outer ring body are arranged on one side, close to the base body, of the working head, a plurality of connecting columns are arranged between the inner ring body and the outer ring body, a cavity in which the tolerance position clamping blocks are axially embedded is arranged between every two adjacent connecting columns, close to the limiting clamping blocks, the side end face of the inner ring body protrudes out of the side end face of the outer ring body, and the two protrusions are correspondingly arranged at the edge position of the side end face of the inner ring body.
The invention is further improved in that: the side end face of the base body close to the working head is provided with a circular groove for embedding the side end face of the inner ring body, the two clamping grooves are arranged at two sides of the inner wall of the circular groove, the side end face of the inner ring body is embedded into the circular groove, and the two convex blocks on the working head are correspondingly clamped in the clamping grooves when the working head is rotated.
The invention is further improved in that: the draw-in groove is including arranging opening guide part and the L type form depressed part of the inboard edge of pedestal in, has spacing in the L type form depressed part, and the up end of spacing is the arc surface that the opening set up down, and the lug slides and is spacing in spacing and the cavity that L type form depressed part inner wall formed towards L type form depressed part by opening guide part.
The invention is further improved in that: the two sides of the lug are provided with elastic sheets, when the lug is clamped into a cavity formed by the limiting strip and the inner wall of the L-shaped sunken part, the elastic sheet on one side of the lug is tightly attached to the L-shaped sunken part, and the elastic sheet on the other side of the lug wraps the limiting strip in the elastic sheet.
The invention is further improved in that: the shell fragment includes the vertical portion with the side end face fixed connection of lug, places the arc portion of vertical portion upper end in and places the rake of arc portion one end in, and the opening of arc portion sets up down and with vertical portion and rake smooth transition, and spacing card is established between the rake of a shell fragment and vertical portion, and the rake of another shell fragment is hugged closely with the inner wall of L type form depressed part.
The utility model provides an utilize electric tool pedestal and working head's connection structure's electric tool, including working head and pedestal, the working head passes through connection structure with the pedestal and realizes detachable the connection, driving motor and lithium cell have in the pedestal, the working head includes can dismantle the set casing of being connected with the pedestal and arrange the work head portion that the pedestal one side was kept away from to the set casing in, the work head portion is any one of angle grinder tool bit, electric chain saw tool bit, spanner tool bit and horse knife saw tool bit, driving motor drive work head portion rotates.
Compared with the prior art, the invention has the following advantages:
1. the base body and the working head are connected in a clamping mode through the connecting structure to replace the working heads with different functions, a plurality of electric tools with different functions are not required to be equipped in the using process, the electric tools are multifunctional rapidly, and the multifunctional electric tool is convenient to popularize and wide in use.
2. The convex blocks on the two sides of the working head are clamped in the clamping grooves of the base body, the working head is rotated to enable the convex blocks to be clamped in the cavities at the bottoms of the limiting strips and the L-shaped concave portions to achieve circumferential direction limiting, then the limiting clamping blocks extend into the cavities of the working head to achieve axial direction limiting, and connection stability of the working head and the base body is guaranteed while quick clamping is achieved.
Description of the drawings:
fig. 1 is a schematic structural diagram of an electric tool according to the present invention.
Fig. 2 is a schematic structural diagram of a base of an electric tool according to the present invention.
Fig. 3 is a schematic structural diagram of a working head of an electric tool according to the present invention.
Fig. 4 is a side view of a working head of an electric power tool of the present invention.
Fig. 5 is an enlarged schematic view of structure a in fig. 4.
Fig. 6 is a schematic connection diagram of a bump and a slot in a connection structure of a base and a connector of an electric tool according to the present invention.
Reference numbers in the figures:
1-seat body, 2-working head, 3-lug, 4-clamping groove, 5-limiting clamping block, 6-inner ring, 7-outer ring, 8-connecting column, 9-cavity, 10-circular groove and 11-elastic sheet;
41-opening guide part, 42-L-shaped concave part, 43-limiting strip and 44-cavity.
The specific implementation mode is as follows:
for the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship, such as one based on the drawings, are used only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the structure or unit indicated must have a specific orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise specified and limited, terms such as "connected," "provided," "having," and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, or directly connected, and may be connected through an intermediate medium, so that those skilled in the art can understand the basic meaning of the above terms in the present invention according to specific situations.
Example 1
As shown in fig. 1, a first embodiment of a connection structure of a base and a working head of an electric tool according to the present invention is shown, the base and the working head of the electric tool are detachably connected by the connection structure, the connection structure includes two correspondingly disposed protrusions 3 disposed on the side end surface of the working head 2 close to the base 1, two slots 4 disposed on the side end surface of the base 1 close to the working head 2, and a limiting block 5 disposed on the side end surface of the base 1 close to the working head 2, the limiting block 5 is disposed between the two slots 4, and the two protrusions 3 are correspondingly engaged with the two slots 4;
as shown in fig. 3, one side of the working head 2 close to the base 1 is provided with an inner ring 6 and an outer ring 7, a plurality of connecting posts 8 are arranged between the inner ring 6 and the outer ring 7, a cavity 9 in which the tolerance position fixture block 5 is axially embedded is arranged between two adjacent connecting posts 8 arranged close to the limiting fixture block 5, a side end surface of the inner ring 6 is arranged to protrude from a side end surface of the outer ring 7, and two protrusions 3 are correspondingly arranged at side end surface edge positions of the inner ring 6.
Further, as shown in fig. 2, the side end surface of the seat body 1 close to the working head 2 is provided with a circular groove 10 for accommodating the side end surface of the inner ring body 6, the two clamping grooves 4 are disposed at two sides of the inner wall of the circular groove 10, the side end surface of the inner ring body 6 is embedded in the circular groove 10, and when the working head 2 is rotated, the two protrusions 3 on the working head 2 are correspondingly clamped in the clamping grooves 4.
Furthermore, the slot 4 includes an opening guide portion 41 and an L-shaped recess 42 disposed at the inner edge of the seat body 1, a limit strip 43 is disposed in the L-shaped recess 42, the upper end surface of the limit strip 43 is an arc surface with a downward opening, and the protrusion 3 slides towards the L-shaped recess 42 from the opening guide portion 41 and is limited in a cavity 44 formed by the limit strip 43 and the inner wall of the L-shaped recess 42.
According to the invention, the base body 1 and the working head 2 are connected in a clamping manner through the connecting structure to replace the working heads 2 with different functions, and a plurality of electric tools with different functions are not required to be equipped in the using process, so that the electric tools are multifunctional rapidly, and the multifunctional electric tool is convenient to popularize and wide in use.
The convex blocks 3 on the two sides of the working head 2 are clamped in the clamping grooves 4 of the base body 1, the working head 2 is rotated to clamp the convex blocks 3 in the cavity 44 at the bottoms of the limiting strips 43 and the L-shaped concave portions 42 to achieve circumferential limiting, and then the limiting clamping blocks 5 extend into the cavity 44 of the working head 2 to achieve axial limiting, so that quick clamping is achieved, and meanwhile connection stability of the working head 2 and the base body 1 is guaranteed.
In this application, the structures of the inner ring body 6, the outer ring body 7 and the connecting column 8 may be replaced by other structures, a gap (as shown in fig. 3 and fig. 4) may be formed between the inner ring body 6 and the outer ring body 7, or no gap may be formed between the inner ring body 6 and the outer ring body 7, that is, the inner ring body 6 and the outer ring body 7 are formed integrally, the connecting column 8 is not required to be further formed, and the outer ring body 7 is provided with a through hole (such as the cavity 44 in this embodiment) into which the tolerance position fixture block 5 extends.
It should be noted that, the limiting clamping block 5 is connected with the seat body 1 through a spring, the limiting clamping block 5 is pushed into the cavity 44 through the elastic force of the spring, when the limiting clamping block 5 is separated from the cavity 44, backward pushing force needs to be applied to the limiting clamping block 5, and the limiting projection 5 can be separated from the cavity 44 through compression of the spring.
Example 2
As shown in fig. 4, in the second embodiment of the present invention, the elastic pieces 11 are disposed on both sides of the bump 3, when the bump 3 is clamped into the cavity 44 formed by the inner walls of the limit strip 43 and the L-shaped recess 42, the elastic piece 11 on one side of the bump 3 is tightly attached to the L-shaped recess 42, and the limit strip 43 is covered in the elastic piece 11 by the elastic piece 11 on the other side of the bump 3.
Furthermore, the spring plate 11 includes a longitudinal portion 111 fixedly connected to the side end surface of the bump 3, an arc portion 112 disposed at the upper end of the longitudinal portion 111, and an inclined portion 113 disposed at one end of the arc portion 112, the opening of the arc portion 112 is disposed downward and smoothly transits the longitudinal portion 111 and the inclined portion 113, the position-limiting bar 43 is clamped between the inclined portion 113 and the longitudinal portion 111 of one spring plate 11, and the inclined portion 113 of the other spring plate 11 is closely attached to the inner wall of the L-shaped recessed portion 42.
It should be noted that, the limiting block 5 is limited to the cavity 9, and the bump 3 is limited to the limiting strip 43 and the cavity 44 at the bottom of the L-shaped recess 42, so as to facilitate assembly, a certain assembly gap is set between the limiting strip 43 and the cavity during mold opening, or a gap is generated due to abrasion of the working head 2 and the seat body 1 due to long-term clamping, so that a certain virtual position is generated after the seat body 1 and the working head 2 are clamped, and particularly, the working head 2 of the electric tool can generate a certain shaking phenomenon under the driving force of the motor when the working head 2 is driven to rotate rapidly.
The elastic pieces 11 are arranged on two sides of the bump 3, and when the bump 3 is limited in the limiting strip 43 and the cavity 44 at the bottom of the L-shaped concave part 42, the bump 3 is tightly attached to the cavity 44 due to the arrangement of the elastic pieces 11, so that the phenomenon of virtual position is avoided.
An electric tool utilizing a connecting structure of an electric tool base and a working head comprises a working head 2 and a base 1, wherein the working head 2 is detachably connected with the base 1 through the connecting structure, a driving motor and a lithium battery are arranged in the base 1, the working head 2 comprises a fixed shell detachably connected with the base 1 and a working head arranged on one side, far away from the base 1, of the fixed shell, the working head is any one of an angle grinder bit, an electric chain saw bit, a spanner bit and a horse saw bit, and the driving motor drives the working head to rotate.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only for the purpose of illustrating the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a connection structure of electric tool pedestal and working head which characterized in that: the electric tool seat body and the working head are detachably connected in a replaceable manner through a connecting structure, the connecting structure comprises two correspondingly arranged convex blocks arranged on the side end face of the working head close to the seat body, two clamping grooves arranged on the side end face of the seat body close to the working head and a limiting clamping block arranged on the side end face of the seat body close to the working head, the limiting clamping block is arranged between the two clamping grooves, and the two convex blocks are correspondingly matched with the two clamping grooves;
an inner ring body and an outer ring body are arranged on one side, close to the base body, of the working head, a plurality of connecting columns are arranged between the inner ring body and the outer ring body, a cavity in which a tolerance position clamping block is axially embedded is arranged between every two adjacent connecting columns, close to the limiting clamping block, the side end face of the inner ring body protrudes out of the side end face of the outer ring body, and the two protrusions are correspondingly arranged at the edge position of the side end face of the inner ring body.
2. The connection structure of the electric tool base and the working head as claimed in claim 1, wherein: the side end face of the base body close to the working head is provided with a circular groove for accommodating the side end face of the inner ring body to be embedded in, the two clamping grooves are arranged at two sides of the inner wall of the circular groove, the side end face of the inner ring body is embedded in the circular groove, and when the working head is rotated, the two convex blocks on the working head are correspondingly clamped in the clamping grooves.
3. The connection structure of the electric tool base and the working head as claimed in claim 2, wherein: the draw-in groove is including arranging opening guide part and the L type form depressed part of inboard edge of pedestal in, have spacing in the L type form depressed part, the up end of spacing is the arc surface that the opening set up down, the lug slides and is spacing in spacing and the cavity that L type form depressed part inner wall formed towards L type form depressed part by opening guide part.
4. A connecting structure of a base and a working head of an electric tool according to claim 3, wherein: the two sides of the lug are provided with elastic sheets, when the lug is clamped into a cavity formed by the limiting strip and the inner wall of the L-shaped sunken part, the elastic sheet on one side of the lug is tightly attached to the L-shaped sunken part, and the elastic sheet on the other side of the lug wraps the limiting strip in the elastic sheet.
5. The connection structure of the electric tool base and the working head as claimed in claim 4, wherein: the shell fragment includes the vertical portion with the side end face fixed connection of lug, arranges the arc portion of vertical portion upper end in and arranges the rake of arc portion one end in, the opening of arc portion sets up down and with vertical portion and rake smooth transition, spacing card is established between the rake of a shell fragment and vertical portion, another the rake of shell fragment is hugged closely with the inner wall of L type form depressed part.
6. An electric tool using the connection structure of the electric tool base body and the working head as set forth in any one of claims 1 to 5, characterized in that: including working head and pedestal, the working head passes through connection structure with the pedestal and realizes detachable the connection, driving motor and lithium cell have in the pedestal, the working head includes can dismantle the set casing of being connected with the pedestal and arrange the work head portion that pedestal one side was kept away from to the set casing in, the work head portion is the arbitrary one in angle grinder tool bit, electric chain saw tool bit, spanner tool bit and the horse knife saw tool bit, driving motor drive work head portion rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110278970.8A CN113043223B (en) | 2021-03-16 | 2021-03-16 | Connection structure of electric tool pedestal and working head and electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110278970.8A CN113043223B (en) | 2021-03-16 | 2021-03-16 | Connection structure of electric tool pedestal and working head and electric tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113043223A true CN113043223A (en) | 2021-06-29 |
| CN113043223B CN113043223B (en) | 2024-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110278970.8A Active CN113043223B (en) | 2021-03-16 | 2021-03-16 | Connection structure of electric tool pedestal and working head and electric tool |
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| Country | Link |
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| CN (1) | CN113043223B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023029266A1 (en) * | 2021-08-31 | 2023-03-09 | 张勇 | Locking device for electric tool conversion head, and electric tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3111537U (en) * | 2005-04-01 | 2005-07-28 | 強網工業股▲ふん▼有限公司 | Silent spindle locking device |
| US20130008677A1 (en) * | 2011-07-08 | 2013-01-10 | Chen Huifu | Multi-head power tool |
| DE202013102832U1 (en) * | 2013-06-28 | 2013-12-04 | Techtronic Power Tools Technology Limited | Tool with replaceable tool holder |
| US20150089814A1 (en) * | 2013-10-02 | 2015-04-02 | Brett Marut | Shaving Apparatus |
| CN208132656U (en) * | 2018-04-09 | 2018-11-23 | 浙江明磊新能源科技有限公司 | A kind of angle grinder |
| CN215395055U (en) * | 2021-03-16 | 2022-01-04 | 启东市宝发机电科技有限公司 | Connecting structure of electric tool base and working head and electric tool |
-
2021
- 2021-03-16 CN CN202110278970.8A patent/CN113043223B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3111537U (en) * | 2005-04-01 | 2005-07-28 | 強網工業股▲ふん▼有限公司 | Silent spindle locking device |
| US20130008677A1 (en) * | 2011-07-08 | 2013-01-10 | Chen Huifu | Multi-head power tool |
| DE202013102832U1 (en) * | 2013-06-28 | 2013-12-04 | Techtronic Power Tools Technology Limited | Tool with replaceable tool holder |
| US20150089814A1 (en) * | 2013-10-02 | 2015-04-02 | Brett Marut | Shaving Apparatus |
| CN208132656U (en) * | 2018-04-09 | 2018-11-23 | 浙江明磊新能源科技有限公司 | A kind of angle grinder |
| CN215395055U (en) * | 2021-03-16 | 2022-01-04 | 启东市宝发机电科技有限公司 | Connecting structure of electric tool base and working head and electric tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023029266A1 (en) * | 2021-08-31 | 2023-03-09 | 张勇 | Locking device for electric tool conversion head, and electric tool |
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| Publication number | Publication date |
|---|---|
| CN113043223B (en) | 2024-07-12 |
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