CN211362151U

CN211362151U - Electric tool

Info

Publication number: CN211362151U
Application number: CN201921926901.8U
Authority: CN
Inventors: 侯维平
Original assignee: Suzhou Dongcheng Tool Technology Co ltd
Current assignee: Suzhou Dongcheng Tool Technology Co ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-08-28
Anticipated expiration: 2029-11-08

Abstract

The electric tool comprises a machine shell and a battery, wherein the machine shell comprises a left shell and a right shell which are mutually buckled, and the left shell and the right shell are mutually buckled to form an accommodating cavity for accommodating the battery. The casing has inner wall and holds the protruding boss that stretches of chamber from the inner wall orientation. The boss comprises a fixing part connected with the inner wall, an elastic arm extending from the fixing part and a bulge part protruding into the accommodating cavity from the tail end of the elastic arm; the electric tool comprises a metal buckle piece clamped on the boss, the metal buckle piece is provided with a flat plate part and a first through hole positioned on the flat plate part, and the protruding part is buckled in the first through hole. The metal buckle sheet is clamped on the boss, so that the left shell and the right shell of the shell have good fixing effect, the volume of the shell can be reduced, and the structure is simplified. Meanwhile, the arrangement of the protruding part enables the metal buckle piece to be still kept at the original position after being disassembled and assembled for many times, and repeated disassembling and assembling maintenance of the electric tool is facilitated.

Description

Electric tool

[ technical field ]

The utility model relates to an electric tool, in particular to hand-held type direct current electric tool.

[ background art ]

The hand-held electric tool is widely used in the industries of buildings, decoration, furniture and the like, for example, an electric hand drill is one of the hand-held electric tools and is the largest product sold in the electric tool industry. The hand-held electric tool is divided into a hand-held alternating current electric tool taking an alternating current power supply as power and a hand-held direct current electric tool taking a direct current battery as power, wherein the hand-held direct current electric tool comprises a machine shell and a battery arranged in the machine shell, the machine shell comprises a left shell and a right shell which are mutually buckled, and the left shell and the right shell are mutually buckled to form a containing cavity for containing the battery. The shell of the hand-held direct current electric tool in the market is fixed by a thin dovetail groove type metal buckle piece, and the mode has the advantages of simple structure, practicality, reduction of the volume of the whole machine and the like. However, when the hand-held type direct current electric tool is maintained by the whole machine, because the dovetail groove type metal buckle piece and the shell are in interference fit, the self material of the shell is combined, after the shell is disassembled for many times, the matching part of the shell and the dovetail groove type metal buckle piece is worn, the gap is enlarged, and therefore the metal buckle piece is easy to loosen and can not be fixed on the shell.

Accordingly, there is a need for an improved power tool that overcomes the deficiencies of the prior art.

[ contents of utility model ]

Not enough to prior art, an object of the utility model is to provide an electric tool with casing buckle fixed knot constructs, this casing buckle fixed knot constructs the equipment firm, and is convenient for relapse the dismouting maintenance.

The utility model provides a technical scheme that prior art problem adopted is: the utility model provides an electric tool, includes the casing and install in battery in the casing, the casing includes left casing and the right casing of mutual lock, the chamber is held in the mutual lock formation of left side casing and right casing, the battery accept in hold the intracavity. The casing has the inner wall and certainly the inner wall orientation hold the protruding boss that stretches in chamber, the boss is including being located first boss on the left casing and being located second boss on the right side casing, first boss and second boss lock form the boss. The boss comprises a fixing part connected with the inner wall, an elastic arm extending from the fixing part along the inner wall and a bulge part protruding into the accommodating cavity from the tail end of the elastic arm; the electric tool comprises a metal buckle sheet clamped on the boss, the metal buckle sheet is provided with a flat plate part and a first through hole positioned on the flat plate part, and the protruding part of the boss is buckled in the first through hole.

The further improvement scheme is as follows: the shell is provided with a buckling surface positioned between the left shell and the right shell, and the first boss and the second boss are symmetrically arranged along the buckling surface.

The further improvement scheme is as follows: the shell comprises two bosses positioned on the inner wall, and the two bosses are arranged on the buckling surface and are opposite to each other.

The further improvement scheme is as follows: the boss is provided with a groove extending from the top surface of the fixing part along the direction far away from the elastic arm, the groove penetrates through the end face of the fixing part, the metal buckle piece is provided with a second through hole located on the flat plate part, and the second through hole corresponds to the groove.

The further improvement scheme is as follows: the first through hole and the second through hole are approximately same in shape, and are arranged on the flat plate portion in a transverse symmetrical mode.

The further improvement scheme is as follows: the boss is provided with a clamping groove which is inwards sunken from the two transverse sides of the fixing part, the clamping groove is adjacent to the inner wall of the shell, the metal buckle piece is provided with wing parts which are inwards bent from the two transverse sides of the flat plate part, and the metal buckle piece is contained in the clamping groove through the wing parts and clamped on the boss.

The further improvement scheme is as follows: the casing comprises a main body part and a holding part connected below the main body part, the holding part is provided with a socket positioned at the bottom, and the battery is inserted into the accommodating cavity from the socket.

The further improvement scheme is as follows: the boss is arranged adjacent to the insertion port, the fixing portion extends from the insertion port towards the main body portion, and the elastic arm extends from the fixing portion towards the main body portion.

The further improvement scheme is as follows: the left shell comprises a left holding portion, the right shell comprises a right holding portion, the left holding portion and the right holding portion are mutually buckled to form the holding portion, and the battery is contained in the holding portion.

The further improvement scheme is as follows: the electric tool comprises a motor, a transmission mechanism and an output mechanism, wherein the motor, the transmission mechanism and the output mechanism are arranged on the shell, the transmission mechanism is connected between the motor and the output mechanism, the motor drives the output mechanism to operate through the transmission mechanism, and the motor and the transmission mechanism are contained in the main body part.

Compared with the prior art, the utility model discloses following beneficial effect has: the metal buckle sheet is clamped on the boss, and the boss part of the boss is buckled in the first through hole of the metal buckle sheet, so that the left shell and the right shell of the shell are well fixed, the size of the shell is reduced, and the structure is simplified. Meanwhile, the arrangement of the protruding part enables the metal buckle sheet to be still kept at the original position of the shell after being disassembled and assembled for many times, and repeated disassembling and assembling maintenance of the electric tool is facilitated.

[ description of the drawings ]

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:

fig. 1 is a perspective view of an electric tool according to a preferred embodiment of the present invention;

FIG. 2 is a perspective view of the power tool of FIG. 1 with the right housing removed;

FIG. 3 is a perspective view of the power tool of FIG. 1 with the housing engaged;

FIG. 4 is an exploded view of the housing shown in FIG. 3;

FIG. 5 is a front view of the left housing of the enclosure shown in FIG. 4;

FIG. 6 is a bottom view of the housing shown in FIG. 3;

FIG. 7 is an enlarged partial view of circle A of the housing shown in FIG. 4;

FIG. 8 is an enlarged partial view of circle B of the housing shown in FIG. 6;

fig. 9 is a perspective view of the metal buckle sheet in the casing shown in fig. 4.

The meaning of the reference symbols in the figures:

100. electric tool 101, accommodating cavity 102, left housing 103, right housing 1, housing 10, inner wall 11, main body 12, holding part 121, left holding part 122, right holding part 13, socket 2, motor 3, transmission mechanism 4, output mechanism 5, boss 501, first boss 502, second boss 51, fixing part 52, elastic arm 53, protruding part 54, clamping groove 55, groove 6, metal buckle piece 60, flat plate part 61, first through hole 62, second through hole 63, wing part 7, battery

[ detailed description of the invention ]

Referring to fig. 1 to 2, a hand-held electric tool 100 according to the present invention is widely used in the building, decoration, furniture and other industries. The electric tool 100 includes a housing 1, and a motor 2, a transmission mechanism 3, an output mechanism 4, and a battery 7 mounted on the housing 1. The casing 1 includes a main body portion 11 and a holding portion 12 connected to a lower portion of the main body portion 11, the motor 2 and the transmission mechanism 3 are accommodated in the main body portion 11, and the battery 7 is accommodated in the holding portion 12. The transmission mechanism 3 is connected between the motor 2 and the output mechanism 4, and the motor 2 drives the output mechanism 4 to operate through the transmission mechanism 3.

Referring to fig. 3 to 5, the housing 1 includes a left housing 102 and a right housing 103 that are engaged with each other, the left housing 102 and the right housing 103 are engaged with each other to form an accommodating cavity 101, and the battery 7 is accommodated in the accommodating cavity 101. The left shell 102 includes a left holding portion 121, the right shell 103 includes a right holding portion 122, and the left holding portion 121 and the right holding portion 122 are fastened to each other to form the holding portion 12. The grip 12 has a socket 13 at the bottom, and the battery 7 is inserted into the accommodating cavity 101 of the grip 12 from the socket 13.

Referring to fig. 6 and 7, the housing 1 has an inner wall 10 and a boss 5 protruding from the inner wall 10 toward the accommodating cavity 101, the boss 5 includes a first boss 501 on the left housing 102 and a second boss 502 on the right housing 103, and the first boss 501 and the second boss 502 are fastened to form the boss 5. The casing 1 has a fastening surface between the left casing 102 and the right casing 103, the left casing 102 and the right casing 103 are symmetrically arranged along the fastening surface, and the first boss 501 and the second boss 502 are symmetrically arranged along the fastening surface. In this embodiment, the housing 1 includes two bosses 5 located on the inner wall 10, and the two bosses 5 are both disposed on the fastening surface and are opposite to each other.

As shown in fig. 8, the boss 5 is disposed adjacent to the socket 13, and the boss 5 includes a fixing portion 51 connected to the inner wall 10, an elastic arm 52 extending from the fixing portion 51 along the inner wall 10, a protruding portion 53 protruding from a distal end of the elastic arm 52 into the accommodating cavity 101, a locking groove 54 recessed inward from two lateral sides of the fixing portion 51, and a recess 55 extending from a top surface of the fixing portion 51. The fixing portion 51 extends from the plug port 13 toward the main body 11, and the elastic arm 52 extends from the fixing portion 51 toward the main body 11; the locking slot 54 is adjacent to the inner wall 10 of the housing 1, and the groove 55 extends in a direction away from the elastic arm 52 and penetrates through the end surface of the fixing portion 51.

Referring to fig. 9, the electric power tool 100 further includes a metal buckle piece 6 clamped on the boss 5, and the metal buckle piece 5 is clamped on the boss 5, so that the left and right housings of the housing 1 are well fixed, and the volume of the housing 1 is reduced, thereby simplifying the structure. The metal buckle piece 6 is provided with a flat plate part 60, a first through hole 61 and a second through hole 62 which are positioned on the flat plate part 60, and wing parts 63 which are bent inwards from two transverse sides of the flat plate part 60; the first through hole 61 and the second through hole 62 have substantially the same shape, and the first through hole 61 and the second through hole 62 are symmetrically disposed in the flat plate portion 60 in the lateral direction. Referring to fig. 7 and 8, the protrusion 53 of the boss 5 is retained in the first through hole 61, the second through hole 62 is disposed corresponding to the groove 55, and the metal buckle piece 6 is received in the slot 54 through the wing 63 and retained on the boss 5.

In this embodiment, the flat plate portion 60 and the two wing portions 63 of the metal buckle piece 6 form a dovetail groove shape, the dovetail groove-shaped metal buckle piece 6 is in interference fit with the boss 5 of the casing 1, and meanwhile, the casing 1 assists other screws to fix the left and right casings together, so that not only a good fixing effect is achieved, but also the volume of the casing 1 can be reduced, and the structure is simplified. The first through hole 61 is a fastening hole and is matched with the boss 53 of the boss 5, and the boss 53 is used for fixing the position of the dovetail groove type metal buckle piece 6 in the casing 1, so that the metal buckle piece 6 is still kept at the original position in the casing 1 after being disassembled and assembled for many times, and repeated disassembling and assembling maintenance of the electric tool 100 is facilitated. Meanwhile, the second through hole 62 is a dismounting hole and is close to the socket 13 of the holding part 12, the second through hole 62 is arranged corresponding to the groove 55, so that a user can conveniently use a tool to stretch into the second through hole to pry the metal buckle piece 6 out, and the dismounting purpose is realized.

The present invention is not limited to the above-described embodiments. It will be readily appreciated by those skilled in the art that there are numerous alternatives to the present invention for a housing snap-fit arrangement for an electric power tool without departing from the spirit and scope of the invention. The protection scope of the present invention is subject to the content of the claims.

Claims

1. An electric tool comprises a machine shell and a battery arranged in the machine shell, wherein the machine shell comprises a left shell and a right shell which are mutually buckled, the left shell and the right shell are mutually buckled to form an accommodating cavity, the battery is accommodated in the accommodating cavity, the machine shell is provided with an inner wall and a boss which extends from the inner wall to the accommodating cavity, the boss comprises a first boss positioned on the left shell and a second boss positioned on the right shell, and the first boss and the second boss are buckled to form the boss; the method is characterized in that: the boss including connect in the fixed part of inner wall, follow from the fixed part the elastic arm that the inner wall extends and from the terminal projection of elastic arm goes into hold the bellying in chamber, electric tool including the card hold in metal buckle piece on the boss, metal buckle piece has the plat plate portion and is located the first through-hole on the plat plate portion, the bellying of boss is detained and is held in the first through-hole.

2. The power tool of claim 1, wherein: the shell is provided with a buckling surface positioned between the left shell and the right shell, and the first boss and the second boss are symmetrically arranged along the buckling surface.

3. The power tool of claim 2, wherein: the shell comprises two bosses positioned on the inner wall, and the two bosses are arranged on the buckling surface and are opposite to each other.

4. The power tool of claim 1, wherein: the boss is provided with a groove extending from the top surface of the fixing part along the direction far away from the elastic arm, the groove penetrates through the end face of the fixing part, the metal buckle piece is provided with a second through hole located on the flat plate part, and the second through hole corresponds to the groove.

5. The power tool of claim 4, wherein: the first through hole and the second through hole are approximately same in shape, and are arranged on the flat plate portion in a transverse symmetrical mode.

6. The power tool of claim 1, wherein: the boss is provided with a clamping groove which is inwards sunken from the two transverse sides of the fixing part, the clamping groove is adjacent to the inner wall of the shell, the metal buckle piece is provided with wing parts which are inwards bent from the two transverse sides of the flat plate part, and the metal buckle piece is contained in the clamping groove through the wing parts and clamped on the boss.

7. The power tool of claim 1, wherein: the casing comprises a main body part and a holding part connected below the main body part, the holding part is provided with a socket positioned at the bottom, and the battery is inserted into the accommodating cavity from the socket.

8. The power tool of claim 7, wherein: the boss is arranged adjacent to the insertion port, the fixing portion extends from the insertion port towards the main body portion, and the elastic arm extends from the fixing portion towards the main body portion.

9. The power tool of claim 7, wherein: the left shell comprises a left holding portion, the right shell comprises a right holding portion, the left holding portion and the right holding portion are mutually buckled to form the holding portion, and the battery is contained in the holding portion.

10. The power tool of claim 7, wherein: the electric tool comprises a motor, a transmission mechanism and an output mechanism, wherein the motor, the transmission mechanism and the output mechanism are arranged on the shell, the transmission mechanism is connected between the motor and the output mechanism, the motor drives the output mechanism to operate through the transmission mechanism, and the motor and the transmission mechanism are contained in the main body part.