Motor brush holder convenient to replace

Abstract

The utility model relates to the technical field of motor brush carriers, and discloses a motor brush carrier convenient to replace, which comprises a base, a shaft hole is arranged in the middle of the inside of the base, and brush boxes are respectively arranged on the left side, the right side, the front end and the rear end of the top of the base. According to the motor brush holder convenient to replace, the pull rod is arranged, the pull rod is pushed to move towards the outer side, so that the mounting plate can drive the mounting clamping block to be separated from the interior of the mounting clamping groove, the mounting block can be taken out of the mounting groove to disassemble the brush box when the mounting clamping block is separated from the interior of the mounting clamping groove, and a new brush box is taken after disassembly; the bottom end of the brush box is placed in the mounting groove, the limiting spring enables the mounting clamping block to be embedded in the mounting clamping groove through the elasticity of the limiting spring to fix the mounting block, and therefore replacement of the brush box can be completed, and the problems that the brush box is inconvenient to disassemble and replace according to needs, and use and service life of the brush box are easily affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor brush holders, in particular to a motor brush holder which is easy to replace. Background Art

[0002] Brushes are often used in motors and generators to provide electrical connectivity between the rotating rotor and other components of the motor circuit. When using carbon brushes, a brush holder is required. The brush holder is a component used to install the carbon brushes. Therefore, the brush holder and carbon brushes are both very important components.

[0003] There are still some problems with common motor brush holders. For example, carbon brushes often leak carbon powder, and the brush box is easily disturbed by carbon powder. It is inconvenient to disassemble and replace the brush box according to needs, which can easily affect the use and service life of the components.

[0004] Therefore, we propose a motor brush holder that is easy to replace to improve the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide a motor brush holder that is easy to replace, so as to solve the problem in the above background technology that the brush box is inconvenient to disassemble and replace according to needs, which easily affects the use and service life of the brush box.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a motor brush holder that is easy to replace, comprising a base, an axial hole being provided at a middle position inside the base, brush boxes being provided on the left and right sides and the front and rear ends of the top of the base, a mounting block being fixedly connected to the bottom end of the brush box, mounting grooves being provided on the left and right sides and the front and rear ends inside the base, elastic snap-fit ​​structures being provided on both sides of the mounting groove for facilitating the replacement of the brush box;

[0007] The elastic locking structure includes an installation block, an installation slot and a limit spring, the upper and lower ends of both sides of the installation slot are fixedly connected with connecting blocks, the inner sides of the installation slot are provided with mounting plates, the connecting block is fixedly connected with a movable block on the side close to the middle, the upper and lower ends between the movable block and the installation plate are fixedly connected with a limit spring, a damper is provided inside the limit spring, the installation plate is fixedly connected with an installation block on the side close to the middle, installation slots are provided on both sides of the interior of the installation block, and a pull rod is provided inside the installation plate.

[0008] Preferably, the installation block is embedded in the interior of the installation slot, and the installation block is installed in the interior of the installation slot via the installation block and the installation slot.

[0009] Preferably, the movable block is arranged on one side inside the spring frame, and the movable block slides inside the spring frame.

[0010] Preferably, slide grooves are provided at both ends of both sides of the brush box, baffles are provided on both sides of the top of the installation groove, the front and rear ends of the bottom of the baffle are fixedly connected to the limiting blocks, an anti-slip groove is provided on one side near the middle of the limiting block, and one side inside the slide groove is fixedly connected to the limiting block.

[0011] Preferably, the limiting block is embedded in the anti-slip groove by friction, the limiting block slides in the groove, and the groove is fixedly connected to the top of the base.

[0012] Preferably, a placement groove is provided inside the mounting plate, a groove is provided at the top end of the pull rod, an anti-slip pad is provided on the inner wall of the groove, an elastic pad is fixedly connected to the outer wall of the pull rod, elastic protrusions are fixedly connected to the bottom ends of both sides of the pull rod, and limiting grooves are provided on both sides of the placement groove.

[0013] Preferably, the elastic protrusion is embedded in the limiting groove, and the elastic protrusion and the limiting groove cooperate with each other.

[0014] Preferably, two groups of pull rods are provided, and the pull rods are installed in the placement grooves through elastic protrusions and limiting grooves.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the motor brush holder that is easy to replace not only makes it easy to replace the brush box and prevent carbon powder from entering the interior of the installation slot, but also makes it easy to store the pull rod;

[0016] (1) By providing a pull rod, a mounting block, a mounting slot, a limit spring, a mounting plate and a damper, when the brush box needs to be disassembled, the pull rod is pulled upward from the inside of the mounting plate, and then the pull rod is pushed to move the pull rod outward, so that the mounting plate can drive the mounting block to disengage from the inside of the mounting slot. When the mounting block is disengaged from the inside of the mounting slot, the mounting block can be taken out of the inside of the mounting slot to disassemble the brush box. After disassembly, a new brush box is taken and the bottom of the brush box is placed inside the mounting slot. The limit spring uses its own elasticity to embed the mounting block in the inside of the mounting slot to fix the mounting block, thereby completing the replacement of the brush box;

[0017] (2) By providing a slide groove, a baffle, a limit card block, an anti-slip groove and a limit block, after installing the brush box, the baffle is pushed so that the baffle is pushed to both sides of the top of the installation groove to block both sides of the top of the installation groove to prevent dust from falling into the interior of the installation groove. When the baffle is pushed, the limit block at the bottom of the baffle will slide inside the slide groove. The limit block and the slide groove have a certain friction force. When the limit block slides to the appropriate position, the limit card block will be embedded in the anti-slip groove. The limit card block and the anti-slip groove limit the limit block and the baffle through friction;

[0018] (3) By providing elastic protrusions, elastic pads, grooves, anti-slip pads, placement grooves and limit grooves, when the pull rod is not in use, the bottom end of the pull rod is pushed to be embedded in the inside of the mounting plate, thereby storing the pull rod to prevent it from leaking out and affecting its use. When the pull rod is pushed to an appropriate depth, the elastic protrusion will be embedded in the inside of the limit groove, thereby preventing the pull rod from accidentally sliding inside the mounting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0020] Figure 2 This is a schematic diagram of the top view of the structure of the utility model;

[0021] Figure 3 This is an enlarged front cross-sectional structural diagram of the pull rod of the present invention;

[0022] Figure 4 For the utility model Figure 1 Schematic diagram of the enlarged cross-section structure at point A in the middle.

[0023] In the figure: 1. Base; 2. Mounting slot; 3. Mounting block; 4. Brush box; 5. Slide groove; 6. Baffle; 7. Pull rod; 8. Connecting block; 9. Spring frame; 10. Mounting block; 11. Mounting slot; 12. Axis hole; 13. Elastic protrusion; 14. Elastic pad; 15. Groove; 16. Anti-slip pad; 17. Movable block; 18. Limit spring; 19. Mounting plate; 20. Placement slot; 21. Limiting slot; 22. Damper; 23. Limiting block; 24. Anti-slip slot; 25. Limiting block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-4 The utility model provides an embodiment: a motor brush holder that is easy to replace, including a base 1, an axial hole 12 is opened at the middle position inside the base 1, brush boxes 4 are respectively provided on the left and right sides and the front and rear ends of the top of the base 1, the bottom end of the brush box 4 is fixedly connected with a mounting block 3, and mounting grooves 2 are respectively opened on the left and right sides and the front and rear ends inside the base 1, and elastic snap-fit ​​structures are provided on both sides of the interior of the mounting groove 2 for facilitating the replacement of the brush box 4;

[0026] The elastic locking structure includes a mounting block 10, a mounting slot 11 and a limit spring 18. The upper and lower ends of both sides of the interior of the mounting slot 2 are fixedly connected with a connecting block 8. Mounting plates 19 are provided on both sides of the interior of the mounting slot 2. A movable block 17 is fixedly connected to the side of the connecting block 8 near the middle. The upper and lower ends between the movable block 17 and the mounting plate 19 are fixedly connected to the limit spring 18. A damper 22 is provided inside the limit spring 18. The mounting plate 19 is fixedly connected to the side of the mounting block 10 near the middle. Mounting slots 11 are provided on both sides of the interior of the mounting block 3. A pull rod 7 is provided inside the mounting plate 19.

[0027] The mounting block 10 is embedded in the mounting slot 11, and the mounting block 3 is installed in the mounting slot 2 through the mounting block 10 and the mounting slot 11. The movable block 17 is set on one side of the spring frame 9, and the movable block 17 slides inside the spring frame 9;

[0028] Specifically, if Figure 1 and Figure 4 As shown, when the brush box 4 needs to be disassembled, the pull rod 7 is pulled upward from the inside of the mounting plate 19, and then the pull rod 7 is pushed to move the pull rod 7 outward, so that the mounting plate 19 can drive the mounting block 10 to disengage from the inside of the mounting slot 11. When the mounting block 10 is disengaged from the inside of the mounting slot 11, the mounting block 3 can be taken out of the inside of the mounting slot 2 to disassemble the brush box 4. After disassembly, take a new brush box 4 and place the bottom end of the brush box 4 into the inside of the mounting slot 2. The limit spring 18 uses its own elasticity to embed the mounting block 10 into the inside of the mounting slot 11 to fix the mounting block 3, thereby completing the replacement of the brush box 4.

[0029] Slide grooves 5 are provided at both ends of both sides of the brush box 4, baffles 6 are provided on both sides of the top of the installation groove 2, and the front and rear ends of the bottom of the baffle 6 are fixedly connected to the limiting blocks 25. An anti-slip groove 24 is provided on one side near the middle of the limiting block 25. A limiting block 23 is fixedly connected to one side of the inside of the slide groove 5. The limiting block 23 is embedded in the inside of the anti-slip groove 24 through friction. The limiting block 25 slides inside the slide groove 5, and the slide groove 5 is fixedly connected to the top of the base 1;

[0030] Specifically, if Figure 1 、 Figure 2 and Figure 4 As shown, after the brush box 4 is installed, the baffle 6 is pushed so that the baffle 6 is pushed to both sides of the top of the installation groove 2 to block both sides of the top of the installation groove 2 to prevent dust from falling into the inside of the installation groove 2. When the baffle 6 is pushed, the limit block 25 at the bottom end of the baffle 6 will slide inside the slide groove 5. The limit block 25 and the slide groove 5 have a certain friction force. When the limit block 25 slides to the appropriate position, the limit block 23 will be embedded in the anti-slip groove 24. The limit block 23 and the anti-slip groove 24 limit the limit block 25 and the baffle 6 through friction.

[0031] A placement groove 20 is provided inside the mounting plate 19, a groove 15 is provided at the top end of the pull rod 7, an anti-slip pad 16 is provided on the inner side wall of the groove 15, an elastic pad 14 is fixedly connected to the outer side wall of the pull rod 7, and elastic protrusions 13 are fixedly connected to the bottom ends of both sides of the pull rod 7. Limiting grooves 21 are provided on both sides of the placement groove 20, and the elastic protrusions 13 are embedded in the limiting grooves 21. The elastic protrusions 13 and the limiting grooves 21 cooperate with each other. Two groups of pull rods 7 are provided, and the pull rods 7 are installed in the placement groove 20 through the elastic protrusions 13 and the limiting grooves 21;

[0032] Specifically, if Figure 1 、 Figure 2 and Figure 3 As shown, when the pull rod 7 is not in use, the pull rod 7 is pushed so that the bottom end of the pull rod 7 is embedded in the inside of the mounting plate 19, thereby storing the pull rod 7 to prevent the pull rod 7 from leaking out and affecting its use. When the pull rod 7 is pushed to an appropriate depth, the elastic protrusion 13 will be embedded in the inside of the limiting groove 21, thereby preventing the pull rod 7 from accidentally sliding inside the mounting plate 19.

[0033] When the brush box 4 is in use, the pull rod 7 is pulled upward from the inside of the mounting plate 19, and then the pull rod 7 is pushed to move the pull rod 7 outward, so that the mounting plate 19 drives the mounting block 10 to disengage from the inside of the mounting slot 11. When the mounting block 10 is disengaged from the inside of the mounting slot 11, the mounting block 3 can be taken out of the interior of the mounting slot 2 to disassemble the brush box 4. After disassembly, a new brush box 4 is taken out and the bottom end of the brush box 4 is placed in the inside of the mounting slot 2. The limit spring 18 uses its own elasticity to make the mounting block 10 embedded in the inside of the mounting slot 11 to fix the mounting block 3, so that the brush box 4 can be replaced. When the pull rod 7 is not in use, the pull rod 7 is pushed to make the bottom end of the pull rod 7 embedded in the inside of the mounting plate 19, so that the pull rod 7 can be stored to prevent the pull rod 7 from leaking out and affecting use. After the brush box 4 is installed, the baffle 6 is pushed to the two sides of the top of the mounting slot 2 to block the two sides of the top of the mounting slot 2 to prevent dust from falling into the interior of the mounting slot 2 and affecting use.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A motor brush holder that is easy to replace, comprising a base (1), characterized in that: An axial hole (12) is provided at a middle position inside the base (1), brush boxes (4) are provided on the left and right sides and the front and rear ends of the top of the base (1), the bottom end of the brush box (4) is fixedly connected to a mounting block (3), and mounting grooves (2) are provided on the left and right sides and the front and rear ends inside the base (1), and elastic locking structures are provided on both sides of the inside of the mounting groove (2) for facilitating replacement of the brush box (4); The elastic locking structure comprises a mounting block (10), a mounting slot (11) and a limit spring (18); the upper and lower ends of both sides of the interior of the mounting slot (2) are fixedly connected with a connecting block (8); the interior of the mounting slot (2) is provided with a mounting plate (19); the side of the connecting block (8) close to the middle is fixedly connected with a movable block (17); the upper and lower ends between the movable block (17) and the mounting plate (19) are fixedly connected with a limit spring (18); a damper (22) is provided inside the limit spring (18); the side of the mounting plate (19) close to the middle is fixedly connected with a mounting block (10); the interior of the mounting block (3) is provided with mounting slots (11); the interior of the mounting plate (19) is provided with a pull rod (7).

2. The motor brush holder that is easy to replace according to claim 1, characterized in that: The mounting block (10) is embedded in the interior of the mounting slot (11), and the mounting block (3) is mounted in the interior of the mounting slot (2) via the mounting block (10) and the mounting slot (11).

3. The easily replaceable motor brush holder according to claim 1, characterized in that: The movable block (17) is arranged on one side inside the spring frame (9), and the movable block (17) slides inside the spring frame (9).

4. The easily replaceable motor brush holder according to claim 1, characterized in that: Slide grooves (5) are provided at both ends of both sides of the brush box (4), baffles (6) are provided at both sides of the top of the installation groove (2), and the front and rear ends of the bottom of the baffle (6) are fixedly connected to a limiting block (25), an anti-slip groove (24) is provided on one side near the middle of the limiting block (25), and a limiting block (23) is fixedly connected to one side of the slide groove (5).

5. The motor brush holder that is easy to replace according to claim 4, characterized in that: The limiting block (23) is embedded in the anti-slip groove (24) by friction, and the limiting block (25) slides in the slide groove (5). The slide groove (5) is fixedly connected to the top of the base (1).

6. The easily replaceable motor brush holder according to claim 1, characterized in that: A placement groove (20) is provided inside the mounting plate (19), a groove (15) is provided at the top end inside the pull rod (7), an anti-slip pad (16) is provided on the inner side wall of the groove (15), an elastic pad (14) is fixedly connected to the outer side wall of the pull rod (7), elastic protrusions (13) are fixedly connected to the bottom ends of both sides of the pull rod (7), and limiting grooves (21) are provided on both sides of the placement groove (20).

7. The easily replaceable motor brush holder according to claim 6, characterized in that: The elastic protrusion (13) is embedded in the limiting groove (21), and the elastic protrusion (13) and the limiting groove (21) cooperate with each other.

8. The easily replaceable motor brush holder according to claim 1, characterized in that: The pull rods (7) are provided in two groups, and the pull rods (7) are installed in the placement grooves (20) via elastic protrusions (13) and limiting grooves (21).

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