CN220341641U

CN220341641U - Electric tool brush structure capable of emergency protection

Info

Publication number: CN220341641U
Application number: CN202320995485.7U
Authority: CN
Inventors: 刘彦柱
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2024-01-12
Anticipated expiration: 2033-04-27

Abstract

The utility model discloses an electric tool brush structure capable of emergency protection, which comprises: the electric tool brush structure comprises an electric brush connecting seat, a mounting plate, a first spring and a first carbon brush, wherein the mounting plate is connected to the lower portion of the electric brush connecting seat, the electric brush connecting seat serves as a bearing foundation, the electric tool brush structure capable of being protected in an emergency mode is characterized in that after a clamping rod is pulled out, one end of a carbon brush block is pushed to be connected in a spring cavity in a penetrating mode by a conductive spring, the fact that after a safety piece is worn and popped out by abrasion is achieved, a user can continue to use the electric tool to conduct emergency treatment, an L-shaped handle threaded rod is rotated, the threaded rod drives an L-shaped clamping block to enter an L-shaped clamping groove to be fixed in, the fact that the user can quickly fix the first carbon brush in the electric tool is achieved, time is saved, after electric wire winding, a first insulating arc block drives a second insulating arc block to enclose and fix an electric wire, the user can protect the electric terminal faster, and oxidation of the electric terminal due to overheating is prevented in later use.

Description

Electric tool brush structure capable of emergency protection

Technical Field

The utility model relates to the technical field of electromechanical equipment, in particular to an electric tool brush structure capable of being protected in an emergency.

Background

Brushes are an important component of an electrical machine, responsible for conducting electrical current between rotating and stationary components. The brush is a sliding contact body, and has the characteristics of smoothness, wear resistance, good conductivity and the like. Depending on the application, they are either part of metal parts or made entirely of metal, in practice, a slip ring is usually provided with at least two brushes, avoiding the break due to poor contact of the individual brushes, which prior art solutions have the following problems when in use, such as;

most of the electric brushes can be worn out after being used for a long time, when the electric brushes are worn out to a safe sub-pop-up state in use, the electric tool cannot be used again, so that the emergency working requirements cannot be met, and most of the electric brushes are fixed by using a plurality of groups of bolts when being installed in the electric tool, the installation process is complex, the electric brushes cannot be installed quickly, and the electric wires of most of the electric brushes are wound by using an insulating adhesive tape generally when being wired, are not firm and are easy to oxidize.

Disclosure of Invention

The utility model aims to provide an electric brush structure of an electric tool capable of emergency protection, which aims to solve the problems that the electric brush in the current market provided by the background technology cannot meet the working requirements at the moment after being worn to a safe sub-pop-up, cannot be quickly installed, and is easy to oxidize at a wiring connection part to cause poor wiring.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an emergency-protectable brush structure for an electric tool, comprising: the electric brush comprises an electric brush connecting seat, a mounting plate, a first spring and a first carbon brush;

the utility model discloses a brush, including brush connecting seat, electric wire, first carbon brush, second carbon brush, electric wire, first carbon brush, the brush connecting seat below is connected with the mounting panel, be connected with first spring on the brush connecting seat inside wall, first spring one end is connected with first carbon brush, first carbon brush one end through connection is in the brush connecting seat, first carbon brush one end is connected with the electric wire, electric wire one end through connection is in the brush connecting seat, the cavity has been seted up in the first carbon brush, be connected with the second spring on the cavity inside wall, second spring one end is connected with the safety, and the brush connecting seat is as bearing the basis.

Preferably, the brush connection base includes: place chamber, threaded rod, first bevel gear, second bevel gear, L type handle, L type fixture block, logical groove and L type draw-in groove, the inside chamber of placing of seting up of brush connecting seat below, be connected with the threaded rod on the chamber inside wall of placing, threaded rod one end is connected with first bevel gear, first bevel gear front end is connected with the second bevel gear, second bevel gear front end is connected with L type handle, L type handle one end through connection is in the brush connecting seat.

Preferably, the threaded rod is connected with an L-shaped clamping block in a threaded manner, one end of the L-shaped clamping block penetrates through the groove to be connected in the L-shaped clamping groove, the through groove is formed in the lower surface of the electric brush connecting seat, and the L-shaped clamping groove is formed in the mounting plate.

Preferably, the threaded rod, the first bevel gear, the L-shaped clamping block, the through groove and the L-shaped clamping groove are symmetrically provided with two groups relative to the central axis of the mounting plate.

Preferably, the first carbon brush includes: bullet chamber, conductive spring, carbon brush piece, clamping rod, first draw-in groove, second draw-in groove and first fixture block, the bullet chamber has been seted up in the first carbon brush, be connected with conductive spring on the bullet chamber inside wall, conductive spring one end is connected with the carbon brush piece, carbon brush piece one end block is connected with the clamping rod, clamping rod one end through connection is in first carbon brush.

Preferably, the other end of the clamping rod is connected in a first clamping groove, the first clamping groove is formed below the spring cavity, a second clamping groove is formed in the clamping rod, a first clamping block is connected in the second clamping groove in a clamping mode, and the first clamping block is connected to the inner side wall of the first clamping groove.

Preferably, the electric wire includes: the novel electric wire comprises a first insulating arc-shaped block, a conductive arc-shaped block, a second insulating arc-shaped block, a rotating bin, a threaded sleeve, a bolt and an opening block, wherein the first insulating arc-shaped block is connected to the outer wall of the electric wire, the conductive arc-shaped block is connected to the first insulating arc-shaped block in an interconnecting manner, and the conductive arc-shaped block is clamped and reasonably connected to the outer wall of the electric wire.

Preferably, one end of the first insulating arc-shaped block is rotationally connected with a second insulating arc-shaped block, the second insulating arc-shaped block is connected to the outer wall of the electric wire in a clamping mode, a rotating bin is connected to the outer wall of the first insulating arc-shaped block, a threaded sleeve is rotationally connected to the rotating bin, a bolt is connected to the threaded sleeve in an internal threaded mode, one end of the bolt is connected to the lower portion of the opening block in a clamping mode, and the opening block is connected to the outer wall of the second insulating arc-shaped block.

Compared with the prior art, the utility model has the beneficial effects that: this but emergency protection's electric tool brush structure, after extracting the draw-in bar, conductive spring promotes carbon brush piece one end through connection in the bullet intracavity, realized when the safety piece is popped out by wearing and tearing after, the user can continue to use electric tool to carry out emergency treatment, rotate L type handle threaded rod and rotate, the threaded rod drives L type fixture block and gets into L type draw-in groove internal fixation, realized that the user can fix first carbon brush in electric tool fast, save time improves efficiency, after the electric wire winding, first insulating arc piece drives the insulating arc piece of second and surrounds the electric wire and fix, the realization user can be faster protect the wiring end, prevent in later stage use, the wiring end is oxidized because of the overheat takes place, the concrete content is as follows:

1. when the first carbon brush is worn to the position that the safety sub is ejected, the clamping rod is manually pulled, so that the first clamping block is separated from the second clamping groove, and after the clamping rod is pulled out, one end of the carbon brush block is pushed by the conductive spring to be connected in the spring cavity in a penetrating manner, so that the effect of emergency use at present is achieved;

2. the L-shaped handle is manually rotated to drive the second bevel gear to rotate, the second bevel gear drives the first bevel gear to rotate, the first bevel gear drives the threaded rod to rotate, and the threaded rod drives the L-shaped clamping block to enter the L-shaped clamping groove for fixing, so that the effect of rapid installation is achieved;

3. when a user winds the electric wire, the first insulating arc-shaped block is taken up to drive the second insulating arc-shaped block to surround the electric wire, the threaded sleeve is rotated to drive the bolt to penetrate through the opening block, and the bolt is rotated, so that one end of the bolt is clamped and connected below the opening block, and the effect of preventing oxidization of the fixed wiring terminal is achieved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a conductive spring structure according to the present utility model;

FIG. 3 is a schematic view of a first insulating arc block according to the present utility model;

FIG. 4 is an enlarged view of the structure of the portion A of the present utility model;

FIG. 5 is an enlarged view of the structure of the portion B of the present utility model;

FIG. 6 is an enlarged view of the structure of the portion C of the present utility model;

FIG. 7 is an enlarged view of the structure of the portion D of the present utility model;

fig. 8 is an enlarged view of the structure of the part E of the present utility model.

In the figure: 1. a brush connecting seat; 101. a placement cavity; 102. a threaded rod; 103. a first bevel gear; 104. a second bevel gear; 105. an L-shaped handle; 106. an L-shaped clamping block; 107. a through groove; 108. an L-shaped clamping groove; 2. a mounting plate; 3. a first spring; 4. a first carbon brush; 401. a spring cavity; 402. a conductive spring; 403. a carbon brush block; 404. a clamping rod; 405. a first clamping groove; 406. a second clamping groove; 407. a first clamping block; 5. an electric wire; 501. a first insulating arcuate block; 502. a conductive arc block; 503. a second insulating arcuate block; 504. rotating the bin; 505. a threaded sleeve; 506. a bolt; 507. an opening block; 6. a cavity; 7. a second spring; 8. and (5) a safety child.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-8, the present utility model provides a technical solution: an emergency-protectable brush structure for an electric tool, comprising: the electric brush comprises an electric brush connecting seat 1, a mounting plate 2, a first spring 3 and a first carbon brush 4;

the brush connecting seat 1 below is connected with mounting panel 2, is connected with first spring 3 on the brush connecting seat 1 inside wall, and first spring 3 one end is connected with first carbon brush 4, and first carbon brush 4 one end through connection is in brush connecting seat 1, and first carbon brush 4 one end is connected with electric wire 5, and electric wire 5 one end through connection is in brush connecting seat 1, has seted up cavity 6 in the first carbon brush 4, is connected with second spring 7 on the cavity 6 inside wall, and second spring 7 one end is connected with the safety son 8, and brush connecting seat 1 is as bearing basis.

The brush attachment 1 includes: the novel electric brush comprises a placing cavity 101, a threaded rod 102, a first bevel gear 103, a second bevel gear 104, an L-shaped handle 105, an L-shaped clamping block 106, a through groove 107 and an L-shaped clamping groove 108, wherein the placing cavity 101 is formed in the lower portion of the electric brush connecting seat 1, the threaded rod 102 is connected to the inner side wall of the placing cavity 101, one end of the threaded rod 102 is connected with the first bevel gear 103, the front end of the first bevel gear 103 is connected with the second bevel gear 104, the front end of the second bevel gear 104 is connected with the L-shaped handle 105, one end of the L-shaped handle 105 is connected in the electric brush connecting seat 1 in a penetrating manner, the threaded rod 102 is connected with the L-shaped clamping block 106 in a threaded manner, one end of the L-shaped clamping block 106 is connected in the L-shaped clamping groove 108 in a penetrating manner, the through groove 107 is formed in the lower surface of the electric brush connecting seat 1, the L-shaped clamping groove 108 is formed in the mounting plate 2, the threaded rod 102, the first bevel gear 103, the L-shaped clamping block 106 and the L-shaped clamping groove 108 are symmetrically arranged in two groups about the central axis of the mounting plate 2, and the threaded rod 102 of the L-shaped handle 105 is rotated, and the threaded rod 102 drives the L-shaped clamping block 106 to enter the L-shaped clamping groove 108 to be fixed in the L-shaped clamping groove 108.

The first carbon brush 4 includes: the carbon brush module comprises a spring cavity 401, a conductive spring 402, a carbon brush block 403, a clamping rod 404, a first clamping groove 405, a second clamping groove 406 and a first clamping block 407, wherein the spring cavity 401 is formed in the first carbon brush module 4, the conductive spring 402 is connected to the inner side wall of the spring cavity 401, one end of the conductive spring 402 is connected with the carbon brush block 403, one end of the carbon brush block 403 is connected with the clamping rod 404 in a clamping way, one end of the clamping rod 404 is connected in the first carbon brush module 4 in a penetrating way, the other end of the clamping rod 404 is connected in the first clamping groove 405, the first clamping groove 405 is formed in the lower portion of the spring cavity 401, a second clamping groove 406 is formed in the clamping rod 404, the first clamping block 407 is connected to the inner side wall of the first clamping groove 405 in a clamping way, and after the clamping rod 404 is pulled out, the conductive spring 402 pushes one end of the carbon brush block 403 to be connected in the spring cavity 401 in a penetrating way.

The electric wire 5 includes: the electric wire comprises a first insulating arc-shaped block 501, a conductive arc-shaped block 502, a second insulating arc-shaped block 503, a rotating bin 504, a threaded sleeve 505, a bolt 506 and an opening block 507, wherein the first insulating arc-shaped block 501 is connected to the outer wall of the electric wire 5, the conductive arc-shaped block 502 is connected to the first insulating arc-shaped block 501 in a connecting mode, the conductive arc-shaped block 502 is reasonably connected to the outer wall of the electric wire 5, one end of the first insulating arc-shaped block 501 is rotationally connected with the second insulating arc-shaped block 503, the second insulating arc-shaped block 503 is connected to the outer wall of the electric wire 5 in a clamping mode, the rotating bin 504 is connected to the outer wall of the first insulating arc-shaped block 501 in a rotating mode, the threaded sleeve 505 is connected with the bolt 506 in an internal thread mode, one end of the bolt 506 is connected to the lower portion of the opening block 507 in a clamping mode, the opening block 507 is connected to the outer wall of the second insulating arc-shaped block 503, and after the electric wire 5 is wound, the first insulating arc-shaped block 501 drives the second insulating arc-shaped block 503 to surround and fix the electric wire 5.

To sum up: as shown in fig. 1-8, when the electric brush structure of the electric tool capable of emergency protection is used, it is simply understood that, firstly, after the first clamping block 407 is pulled out and separated from the second clamping groove 406, the conductive spring 402 pushes one end of the carbon brush block 403 to be connected in the spring cavity 401 in a penetrating manner, so that a user can continuously use the electric tool to perform emergency operation after the safety nut 8 is worn and ejected, secondly, the L-shaped handle 105 is rotated to drive the first bevel gear 103 to rotate, the first bevel gear 103 drives the threaded rod 102 to rotate, the threaded rod 102 drives the L-shaped clamping block 106 to move transversely, so that the user can quickly install the first carbon brush 4, time is saved, efficiency is improved, then, after the user winds the electric wire 5, the first insulating arc block 501 is lifted to drive the second insulating arc block 503 to surround the electric wire 5, one end of the bolt 506 is connected below the opening block 507, and drives the conductive arc block 502 to be connected on the outer wall of the electric wire 5 in a clamping manner, so that the user can quickly fix the terminal, and the terminal cannot be contacted in a poor contact state of the art in the future use.

Although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. An emergency-protectable brush structure for an electric tool, comprising: the electric brush connecting seat (1), the mounting plate (2), the first spring (3) and the first carbon brush (4) are characterized in that;

the utility model discloses a brush, including brush connecting seat (1), mounting panel (2) are connected with below brush connecting seat (1), be connected with first spring (3) on brush connecting seat (1) inside wall, first spring (3) one end is connected with first carbon brush (4), first carbon brush (4) one end through-connection is in brush connecting seat (1), first carbon brush (4) one end is connected with electric wire (5), electric wire (5) one end through-connection is in brush connecting seat (1), cavity (6) have been seted up in first carbon brush (4), be connected with second spring (7) on cavity (6) inside wall, second spring (7) one end is connected with safety son (8).

2. The emergency-protectable brush structure of a power tool of claim 1, wherein: the brush connection base (1) includes: place chamber (101), threaded rod (102), first bevel gear (103), second bevel gear (104), L type handle (105), L type fixture block (106), logical groove (107) and L type draw-in groove (108), inside having seted up in brush connecting seat (1) below is placed chamber (101), be connected with threaded rod (102) on placing chamber (101) inside wall, threaded rod (102) one end is connected with first bevel gear (103), first bevel gear (103) front end meshing is connected with second bevel gear (104), second bevel gear (104) front end is connected with L type handle (105), L type handle (105) one end through connection is in brush connecting seat (1).

3. The emergency-protectable brush structure of a power tool of claim 2, wherein: the utility model discloses a brush connection seat, including threaded rod (102), threaded rod (102) are gone up threaded connection has L type fixture block (106), L type fixture block (106) one end is passed through groove (107) and is connected in L type draw-in groove (108), through groove (107) are seted up at brush connection seat (1) lower surface, L type draw-in groove (108) are seted up in mounting panel (2).

4. A power tool brush structure for emergency protection according to claim 3, wherein: the threaded rod (102), the first bevel gear (103), the L-shaped clamping block (106), the through groove (107) and the L-shaped clamping groove (108) are symmetrically arranged in two groups with respect to the central axis of the mounting plate (2).

5. The emergency-protectable brush structure of a power tool of claim 1, wherein: the first carbon brush (4) includes: bullet chamber (401), conductive spring (402), carbon brush piece (403), clamping rod (404), first draw-in groove (405), second draw-in groove (406) and first fixture block (407), bullet chamber (401) have been seted up in first carbon brush (4), be connected with conductive spring (402) on bullet chamber (401) inside wall, conductive spring (402) one end is connected with carbon brush piece (403), carbon brush piece (403) one end block is connected with clamping rod (404), clamping rod (404) one end through connection is in first carbon brush (4).

6. The emergency protectable brush structure for a power tool of claim 5, wherein: the clamping rod (404) other end is connected in first draw-in groove (405), first draw-in groove (405) are seted up in bullet chamber (401) below, second draw-in groove (406) have been seted up on clamping rod (404), the block is connected with first fixture block (407) in second draw-in groove (406), first fixture block (407) are connected on first draw-in groove (405) inside wall.

7. The emergency-protectable brush structure of a power tool of claim 1, wherein: the electric wire (5) comprises: first insulating arc piece (501), electrically conductive arc piece (502), second insulating arc piece (503), rotate storehouse (504), screw sleeve (505), bolt (506) and opening piece (507), be connected with first insulating arc piece (501) on electric wire (5) outer wall, first insulating arc piece (501) in-connection has electrically conductive arc piece (502), electrically conductive arc piece (502) card rational connection is on electric wire (5) outer wall.

8. The emergency protectable brush structure of a power tool of claim 7, wherein: the novel electric wire is characterized in that one end of the first insulating arc-shaped block (501) is rotationally connected with the second insulating arc-shaped block (503), the second insulating arc-shaped block (503) is connected to the outer wall of the electric wire (5) in a clamping mode, a rotating bin (504) is connected to the outer wall of the first insulating arc-shaped block (501), a threaded sleeve (505) is rotationally connected to the rotating bin (504), a bolt (506) is connected to the threaded sleeve (505) in an internal threaded mode, one end of the bolt (506) is connected to the lower portion of the opening block (507) in a clamping mode, and the opening block (507) is connected to the outer wall of the second insulating arc-shaped block (503).