CN211996802U - Protection device of electric tool commutator - Google Patents

Abstract

The utility model discloses a protection device of electric tool commutator, the power distribution box comprises a box body, the inside of box is provided with a plurality of rack, the front-back position of rack is provided with the side connecting rod, the front end of side connecting rod is provided with the connector, the inside position that corresponds the connector of box is provided with circular spread groove, the rack passes through connector movable mounting in circular spread groove, be provided with a plurality of rubber tube on the rack, the below position of rubber tube is provided with the bottom rubber pad, movable mounting has the upper portion spliced pole in the rubber tube. A protection device of electric tool commutator, through the rack structure that sets up for contactless each other between the commutator main part, the mutual friction of having avoided in the transportation makes mutual wearing and tearing, thereby protects the outgoing of product quality, and through this structure, can make user's later stage statistics surplus use volume become simple and convenient.

Description

Protection device of electric tool commutator

Technical Field

The utility model relates to a protection device field, in particular to protection device of electric tool commutator.

Background

An important part of the armature of a DC motor and an AC commutator motor plays a role of commutation when the motor rotates, the DC motor and the AC series motor are used as current commutation, in order to enable the motor to continuously rotate to be a part, commonly called as a commutator, a wear device of a commutator segment on a commutator directly influences the service life of the commutator, the wear is generated in the using process, the wear in the transportation and storage process is also a main direction, because one end of the commutator segment on the commutator is bent outwards, the edge position of the structure is relatively sharp, when the transported commutator is not too large in size, the commutator and the commutator are often piled together for transportation, the commutator and the commutator are mutually contacted and worn and inserted in the transportation process, certain commutators are often worn seriously, and because the commutator is not large in size, in the later use process, counting the use residual quantity is also a relatively troublesome matter.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a protection device for a commutator of an electric tool, which can effectively solve the problems of the background art.

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

a protection device for a commutator of an electric tool comprises a box body, wherein a plurality of placing racks are arranged in the box body, side connecting rods are arranged at the front and back positions of the placing racks, a connector is arranged at the front end of each side connecting rod, a circular connecting groove is formed in the position, corresponding to the connector, in the box body, the placing racks are movably arranged in the circular connecting groove through the connectors, a plurality of rubber tubes are arranged on the placing racks, bottom rubber pads are arranged below the rubber tubes, upper connecting columns are movably arranged in the rubber tubes, circular pressing plates are arranged at the top ends of the upper connecting columns, upper rubber pads are arranged below the circular pressing plates through the upper connecting columns, left oblique elastic pieces are arranged on the left sides of the lower ends of the upper connecting columns, right oblique elastic pieces are arranged on the right sides of the lower ends of, the cover plate is provided with a fixed elastic sheet, and the fixed elastic sheet is provided with a side fixed head.

Preferably, the side connecting rods at the front and rear positions of the placing rack are two, the number of the connecting rods is four, the connecting heads are spherical, the round connecting grooves are prevented from being scratched by the arranged spherical connecting heads, and the placing rack is convenient to take.

Preferably, the rack comprises a plurality of connecting rods in a horizontal vertical mutually perpendicular staggered manner, and the rubber tubes are located at mutually staggered positions on the rack, so that the rubber tubes are orderly arranged and do not contact with each other, and later-stage searching statistics is facilitated.

Preferably, there is the commutator main part top movable mounting that lies in the bottom rubber pad on the rubber tube, upper portion rubber pad and bottom rubber pad central point put and are provided with central through-hole, the bottom rubber pad passes through central through-hole movable mounting on the rubber tube, the upper portion rubber pad passes through central through-hole movable mounting on the upper portion spliced pole, and the installation of being convenient for of central through-hole through, upper portion rubber pad and bottom rubber pad protection commutator main part through setting up.

Preferably, the length of the left oblique elastic sheet is greater than that of the right oblique elastic sheet, so that the joints at the bottom of the elastic sheets cannot be mutually abutted.

Preferably, the apron passes through hinge movable mounting on the box, the right side intermediate position of apron is provided with fixed opening, fixed shell fragment is located fixed opening, set up V type fixed slot in the corresponding position that lies in fixed shell fragment on the box, be provided with the side fixed slot that corresponds the side fixed head in the V type fixed slot, through side fixed head and side fixed slot reciprocal anchorage.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses in, through the rack structure that sets up, place the commutator main part above that for commutator main part is separately one by one, does not want to hand over, has avoided piling up together in the little commutator transportation of this type volume, and mutual friction wearing and tearing have protected the outgoing of commutator quality, and through the rack structure that sets up, the user later stage of being convenient for makes statistics of the problem of using the surplus.

Drawings

Fig. 1 is a schematic top view of a protection device for a commutator of an electric tool according to the present invention;

fig. 2 is a schematic side view of a rack of a protection device for a commutator of an electric tool according to the present invention;

fig. 3 is a schematic structural view of a rubber tube of a protection device for a commutator of an electric tool according to the present invention;

fig. 4 is a schematic structural view of an upper connecting column of a protection device of a commutator of an electric tool according to the present invention;

fig. 5 is a schematic structural view of a bottom rubber pad of the protection device for the commutator of the electric tool according to the present invention;

fig. 6 is a schematic structural view of a V-shaped fixing groove of a protection device for a commutator of an electric tool according to the present invention.

In the figure: 1. a box body; 2. placing a rack; 3. a side connecting rod; 4. a side fixing head; 5. a circular connecting groove; 6. a connector; 7. a cover plate; 8. a hinge; 9. a fixed opening; 10. fixing the elastic sheet; 11. a V-shaped fixing groove; 12. a bottom rubber pad; 13. a commutator body; 14. an upper rubber pad; 15. a circular pressing plate; 16. a rubber tube; 17. an upper connecting column; 18. a left oblique spring plate; 19. a right oblique spring plate; 20. a central through hole; 21. side fixing grooves.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in figures 1-6, a protection device for a commutator of an electric tool comprises a box body 1, a plurality of placing racks 2 are arranged in the box body 1, side connecting rods 3 are arranged at the front and rear positions of the placing racks 2, a connector 6 is arranged at the front end of each side connecting rod 3, a circular connecting groove 5 is arranged in the box body 1 corresponding to the connector 6, the placing racks 2 are movably arranged in the circular connecting groove 5 through the connectors 6, a plurality of rubber tubes 16 are arranged on the placing racks 2, a bottom rubber pad 12 is arranged below each rubber tube 16, an upper connecting column 17 is movably arranged in each rubber tube 16, a circular pressing plate 15 is arranged at the top end of each upper connecting column 17, an upper rubber pad 14 is arranged below each circular pressing plate 15 by each upper connecting column 17, a left oblique elastic sheet 18 is arranged on the left side of the lower end of each upper connecting column 17, the right side of the box body 1 is provided with a cover plate 7, a fixed elastic sheet 10 is arranged on the cover plate 7, and a side fixing head 4 is arranged on the fixed elastic sheet 10.

The side connecting rods 3 at the front and back positions of the placing rack 2 are respectively two, the total number of the side connecting rods is two, the number of the side connecting rods is four, and the connecting heads 6 are spherical; the placing frame 2 is formed by vertically and horizontally staggering a plurality of connecting rods, and the rubber tubes 16 are positioned at the staggered positions on the placing frame 2; a commutator body 13 is movably arranged on the rubber tube 16 above the bottom rubber pad 12, a central through hole 20 is arranged at the central positions of the upper rubber pad 14 and the bottom rubber pad 12, the bottom rubber pad 12 is movably arranged on the rubber tube 16 through the central through hole 20, and the upper rubber pad 14 is movably arranged on the upper connecting column 17 through the central through hole 20; the length of the left oblique spring piece 18 is greater than that of the right oblique spring piece 19; the cover plate 7 is movably mounted on the box body 1 through the hinge 8, the right middle position of the cover plate 7 is provided with the fixed opening 9, the fixed elastic sheet 10 is located in the fixed opening 9, the box body 1 is provided with the V-shaped fixed groove 11 in the corresponding position of the fixed elastic sheet 10, and the V-shaped fixed groove 11 is provided with the side fixed groove 21 corresponding to the side fixed head 4.

It should be noted that the present invention relates to a protection device for a commutator of an electric tool, wherein a commutator main body 13 is movably installed on a bottom rubber pad 12 at the lower end of a rubber tube 16 through a through hole at the inner center thereof, a left oblique spring 18 and a right oblique spring 19 are pinched together, an upper rubber pad 14 is sleeved, the left oblique spring 18 and the right oblique spring 19 are pinched by a thumb and a middle finger, a forefinger is placed on a circular pressing plate 15, the pinched left oblique spring 18 and the pinched right oblique spring 19 are placed inside the rubber tube 16, the thumb and the middle finger are released, the left oblique spring 18 and the right oblique spring 19 are opened outwards to abut against the inside of the rubber tube 16, the forefinger presses the circular pressing plate 15 downwards, the upper rubber pad 14 is installed at the upper end of the commutator main body 13, the commutator main body 13 is sequentially installed on the rubber tube 16, then in proper order with rack 2 through side connecting rod 3 and 6 movable mounting of connector in circular spread groove 5, then flip apron 7 left, when overturning V type fixed slot 11 top, continue the upset downwards, make fixed shell fragment 10 enter into V type fixed slot 11, because the side fixed head 4 structure of fixed shell fragment 10 side, in the in-process of turning over under the pressure, can receive the extrusion of V type fixed slot 11 lateral wall, thereby the certain angle of leanin, when meetting side fixed slot 21, under the elastic effect of fixed shell fragment 10, side fixed head 4 card is gone into in side fixed slot 21, fix fixed shell fragment 10, when opening, need earlier make side fixed head 4 leave side fixed slot 21 and then move upwards with fixed shell fragment 10 inwardly moved certain distance.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. A protection device of a commutator of an electric tool is characterized in that: comprises a box body (1), a plurality of placing racks (2) are arranged in the box body (1), side connecting rods (3) are arranged at the front and back positions of the placing racks (2), a connector (6) is arranged at the front end of each side connecting rod (3), a round connecting groove (5) is arranged in the box body (1) corresponding to the connector (6), the placing racks (2) are movably arranged in the round connecting groove (5) through the connectors (6), a plurality of rubber tubes (16) are arranged on the placing racks (2), a bottom rubber pad (12) is arranged below each rubber tube (16), an upper connecting column (17) is movably arranged in each rubber tube (16), a round pressing plate (15) is arranged at the top end of each upper connecting column (17), an upper rubber pad (14) is arranged below each round pressing plate (15) by the upper connecting column (17), the lower extreme left side of upper portion spliced pole (17) is provided with left side slant shell fragment (18), the lower extreme right side of upper portion spliced pole (17) is provided with right side slant shell fragment (19), the right side of box (1) is provided with apron (7), be provided with fixed shell fragment (10) on apron (7), fixed shell fragment (10) are provided with side fixed head (4).

2. A protection device for a commutator of an electric tool according to claim 1, wherein: the side connecting rods (3) at the front and rear positions of the placing rack (2) are respectively two, the total number of the side connecting rods is two, the number of the side connecting rods is four, and the connectors (6) are spherical.

3. A protection device for a commutator of an electric tool according to claim 1, wherein: the placing frame (2) is formed by a plurality of connecting rods which are vertically and transversely staggered, and the rubber tubes (16) are positioned at the staggered positions on the placing frame (2).

4. A protection device for a commutator of an electric tool according to claim 1, wherein: the commutator comprises a rubber tube (16), a commutator body (13) is movably mounted above a bottom rubber pad (12) on the rubber tube (16), a central through hole (20) is formed in the center positions of an upper rubber pad (14) and the bottom rubber pad (12), the bottom rubber pad (12) is movably mounted on the rubber tube (16) through the central through hole (20), and the upper rubber pad (14) is movably mounted on an upper connecting column (17) through the central through hole (20).

5. A protection device for a commutator of an electric tool according to claim 1, wherein: the length of the left oblique elastic sheet (18) is greater than that of the right oblique elastic sheet (19).

6. A protection device for a commutator of an electric tool according to claim 1, wherein: the improved box is characterized in that the cover plate (7) is movably mounted on the box body (1) through a hinge (8), a fixed opening (9) is formed in the middle position of the right side of the cover plate (7), the fixed elastic sheet (10) is located in the fixed opening (9), a V-shaped fixing groove (11) is formed in the corresponding position of the fixed elastic sheet (10) on the box body (1), and a side fixing groove (21) corresponding to the side fixing head (4) is formed in the V-shaped fixing groove (11).

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