CN210189694U

CN210189694U - Multifunctional alloy joint for handheld tool

Info

Publication number: CN210189694U
Application number: CN201920606399.6U
Authority: CN
Inventors: Ning Jiang; 姜宁
Original assignee: Jalor Industry Co ltd
Current assignee: Jalor Industry Co ltd
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-03-27
Anticipated expiration: 2029-04-29

Abstract

The utility model discloses a multifunctional alloy joint for a handheld tool, which comprises a tool connecting surface, a machine connecting surface and a central through hole arranged in the center of the tool connecting surface, wherein the tool connecting surface is provided with a plurality of internal connecting bulges and a plurality of external connecting bulges, the plurality of internal connecting bulges are distributed with the center of the central through hole as the circle center at equal intervals, and the plurality of external connecting bulges are distributed with the center of the central through hole as the circle center at equal intervals; the machine connecting surface is provided with a plurality of second fan-shaped bulges which are distributed at equal intervals by using the centers of the central through holes, a groove is also arranged between the two adjacent second fan-shaped bulges, and the widths of the two ends of the groove are equal. The utility model discloses an outer joint is protruding, in-connection is protruding and fan-shaped protruding can firmly be fixed to the tool bit, makes the utility model discloses become a whole with the tool bit, increased the intensity of tool bit machine junction, because connecting screw not with tool bit direct contact, but through this embodiment fixing tool head, consequently can avoid the phenomenon of screw extrusion tool bit among the prior art.

Description

Multifunctional alloy joint for handheld tool

Technical Field

The utility model relates to a handheld tool connects with multi-functional alloy belongs to handheld tool connecting piece technical field.

Background

The sawing shovel is used for grinding and polishing, and as a multi-surface hand for home decoration, the multifunctional machine is more and more widely applied to the aspects of grooving, cutting, trimming and the like in decoration. The multifunctional machine has many accessories, such as semi-circular saw blade, straight saw blade, triangular abrasive plate, finger-shaped abrasive plate, semi-circular abrasive plate, triangular abrasive plate, finger-shaped abrasive plate, rigid scraper, flexible scraper, etc. The strength and reliability of the connection of various accessories to the machine interface is directly related to the operational safety factor. The tool heads of the prior art are usually provided with through holes through which screws are passed in use for attaching the tool head to a machine, but in this way the attachment is prone to wear of the through holes during use, and even to damage of the tool head from the through holes.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model aims to provide a multifunctional alloy joint for a hand tool, which is more reliable in connection and longer in service life.

In order to achieve the above object, the utility model adopts the following technical scheme:

a multifunctional alloy joint for a handheld tool is characterized by comprising a tool connecting surface, a machine connecting surface and a central through hole arranged in the center of the center, wherein the tool connecting surface is provided with a plurality of inner connecting bulges and a plurality of outer connecting bulges;

the machine is connected the face and is equipped with a plurality of fan-shaped two archs that distribute with the central equidistance of central through-hole, still is equipped with the recess between the two adjacent fan-shaped archs, recess both ends width equals.

Preferably, the multifunctional alloy joint for the handheld tool is characterized in that the cross sections of the tool connecting surface and the machine connecting surface are circular.

Preferably, the multifunctional alloy joint for the handheld tool is characterized in that a concave end is further arranged at the central through hole end of the second fan-shaped protrusion.

Preferably, the multifunctional alloy joint for the hand tool is characterized in that the inner edge of the inner connecting bulge is flush with the central through hole, and the number of the inner connecting bulges is four.

Preferably, the multifunctional alloy joint for the hand-held tool is characterized in that the number of the external connecting protrusions is 12.

Preferably, the multifunctional alloy joint for the hand tool is characterized in that the outer connecting protrusion is aligned with the groove.

Preferably, the multifunctional alloy joint for the handheld tool is characterized in that the machine connecting surface is further provided with a plurality of fan-shaped bulges distributed at equal intervals, and the fan-shaped bulges and the external connecting bulges are arranged at intervals.

Preferably, the multifunctional alloy joint for the hand-held tool is characterized in that the number of the fan-shaped protrusions is four, and the number of the external connecting protrusions is also four.

Preferably, the multifunctional alloy joint for the hand tool is characterized in that the material is zinc alloy.

The utility model discloses the beneficial effect who reaches:

the utility model discloses an outer joint is protruding, in-connection is protruding and fan-shaped protruding can firmly be fixed to the tool bit, makes the utility model discloses become a whole with the tool bit, increased the intensity of tool bit machine junction, because connecting screw not with tool bit direct contact, but through this embodiment fixing tool head, consequently can avoid the phenomenon of screw extrusion tool bit among the prior art. The recess can increase the frictional force between this embodiment and the tool bit, makes the utility model discloses connect more reliably after the machine, be difficult for beating the commentaries on classics.

Drawings

FIG. 1 is a schematic view of a tool connection surface according to an embodiment of the present invention;

FIG. 2 is a structural diagram of a connection surface of a machine according to an embodiment of the present invention;

FIG. 3 is a schematic view of the connection between the inner connecting protrusion and the tool head of the present invention;

FIG. 4 is a structural view of a connection surface of a second tool according to an embodiment of the present invention;

the meaning of the reference symbols in the figures: 1-a tool connection face; 2-machine attachment face; 11-external connection projection; 12-inner connection protrusions; 13-a fan-shaped bulge I; 14, first groove; 21-a second fan-shaped bulge; 22-a groove; 3-a central through hole; 211-recessed end; 4-tool head.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

The first embodiment is as follows:

as shown in fig. 1 and 2: the embodiment discloses a handheld tool connects with multi-functional alloy, connect face 2 and set up in central through-hole 3 at central center including the instrument, the machine, the instrument is connected face 1 and is equipped with a plurality of interior connection archs 12 and a plurality of outer joint archs 11, and a plurality of interior connection archs 12 use the center of central through-hole 3 to distribute as centre of a circle equidistance, and a plurality of outer joint archs 11 use the center of central through-hole 3 to distribute as centre of a circle equidistance.

The machine connecting surface 2 is provided with a plurality of second fan-shaped bulges 21 which are distributed at equal intervals by the center of the central through hole 3, a groove 22 is also arranged between the two adjacent second fan-shaped bulges 21, and the widths of the two ends of the groove 22 are equal. That is to say the outer side wall end of the joint is equal in width to the end connected to the central through hole 3.

The tool attachment surface 1 and the machine attachment surface 2 of the present embodiment are both circular in cross-section. The end of the central through hole 3 of the second fan-shaped protrusion 21 is also provided with a concave end 211. The concave end 211 of all the second fan-shaped protrusions 21 forms a concave part with a circular cross section, the concave part is used for being connected with a power output end of a machine, in the prior art, the power output end of the machine is generally provided with a circular retaining ring for being connected with a tool head, the concave end 211 of the embodiment forms a concave part with a circular cross section, the concave part can be matched with the circular retaining ring in the prior art, the universality is good, and the structure of the existing machine does not need to be changed. The grooves 22 increase the friction between the present embodiment and the tool bit, making the present embodiment more reliable and less prone to rotation after attachment to the machine.

The inner edges of the inner connecting projections 12 of this embodiment are flush with the central through hole 3, and the inner connecting projections 12 are preferably four, while the outer ends of the outer connecting projections 11 are preferably flush with the side walls of this embodiment.

The number of the external connection protrusions 11 of this embodiment is preferably 12, and the external connection protrusions 11 are preferably aligned with the grooves 22. The material of this embodiment is preferably zinc alloy.

In use, as shown in fig. 3, the machine connecting portion of the tool bit 4 is provided with a plurality of through holes distributed with the external connecting protrusion 11 and the internal connecting protrusion 12, the external connecting protrusion 11 and the internal connecting protrusion 12 are inserted into the through holes, then pressure or impact force (which can be achieved by a tool such as a press or a hammer) is applied to the end portions of the external connecting protrusion 11 and the internal connecting protrusion 12, the portions of the external connecting protrusion 11 and the internal connecting protrusion 12 higher than the tool bit 4 are riveted, and the external connecting protrusion 11 and the internal connecting protrusion 12 after riveting can firmly fix the tool bit. This embodiment is then secured to the machine together with the tool bit 4 by means of screws through the central through holes. In the use process, the structure that this embodiment and tool bit 4 are equivalent to being the integral type has increased the intensity of tool bit 4 machine junction, because the connecting screw does not directly contact with tool bit 4, but fixes tool bit 4 through this embodiment, so can avoid the phenomenon that screw extrusion tool bit 4 among the prior art. The tool head 4 of the present embodiment includes a semi-circular saw blade, a straight saw blade, a triangular sanding plate, a finger sanding plate, a semi-circular sanding plate, a triangular sanding plate, a finger sanding plate, a rigid scraper, a flexible scraper, etc.

Example two:

as shown in fig. 4: the difference between this embodiment and the first embodiment is: the machine connecting surface 2 is also provided with a plurality of fan-shaped bulges 13 distributed at equal intervals, and the fan-shaped bulges 13 and the outer connecting bulges 11 are arranged at intervals. The fan-shaped protrusions one 13 are four, and the outer connecting protrusions 11 are also four. When in use, the external connecting bulge 11 and the fan-shaped bulge I13 are riveted with the tool head 4 together, and the specific principle and the process are the same as those of the first embodiment.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. The multifunctional alloy joint for the handheld tool is characterized by comprising a tool connecting surface (1), a machine connecting surface (2) and a central through hole (3) arranged in the center of the center, wherein the tool connecting surface (1) is provided with a plurality of inner connecting bulges (12) and a plurality of outer connecting bulges (11), the plurality of inner connecting bulges (12) are equidistantly distributed by taking the center of the central through hole (3) as the circle center, and the plurality of outer connecting bulges (11) are equidistantly distributed by taking the center of the central through hole (3) as the circle center;

the machine is connected face (2) and is equipped with a plurality of fan-shaped two (21) of archs that distribute with the central equidistance of central through-hole (3), still is equipped with recess (22) between adjacent fan-shaped two (21) of archs, recess (22) both ends width equals.

2. The multifunctional alloy joint for the hand-held tool as recited in claim 1, wherein the cross-section of the tool connecting surface (1) and the machine connecting surface (2) is circular.

3. The multifunctional alloy joint for the hand tool as recited in claim 1, wherein the central through hole (3) end of the fan-shaped protrusion (21) is further provided with a concave end (211).

4. The multifunctional alloy joint for hand tools as claimed in claim 1, wherein the inner edge of the inner connecting protrusion (12) is flush with the central through hole (3), and the number of the inner connecting protrusions (12) is four.

5. The multifunctional alloy joint for hand tool as claimed in claim 1 or 4, wherein there are 12 external connection protrusions (11).

6. The multifunctional alloy joint for hand tool as claimed in claim 1, wherein the external connection protrusion (11) is aligned with the groove (22).

7. The multifunctional alloy joint for the hand-held tool as claimed in claim 1, wherein the machine connecting surface (2) is further provided with a plurality of fan-shaped protrusions (13) which are distributed at equal intervals, and the fan-shaped protrusions (13) are arranged at intervals with the outer connecting protrusions (11).

8. The multi-functional alloy joint for hand tools as set forth in claim 7, wherein said first fan-shaped protrusions (13) are four in number and said outer connecting protrusions (11) are also four in number.

9. The multi-functional alloy attachment for a hand tool of claim 1, wherein the material is a zinc alloy.