Plum blossom hole electric brush convenient to disassemble and replace

Abstract

The utility model discloses a plum blossom hole electric brush convenient to disassemble and replace, which relates to the field of electric brushes, and comprises an installation shell, a cover plate and an electric brush body, the inner side of the cover plate is provided with a disassembly assembly used for disassembling and assembling the electric brush body, and the inner side of the installation shell is provided with a fixing assembly used for fixing the electric brush body. The disassembly assembly comprises a connecting rod arranged on the inner side of the cover plate in a sliding mode, two limiting grooves are formed in the upper end of the installation shell, and two limiting blocks are symmetrically arranged on the inner sides of the limiting grooves in a sliding mode. The electric brush body is disassembled and assembled, the operation time is shortened, through the shape setting of the limiting block and the limiting groove, when the cover plate is installed, the cover plate can be fixed and the installation of the electric brush body can be completed only by aligning the limiting block with the limiting groove, and the operation is simple and rapid.

Description

Technical Field

[0001] The utility model relates to the field of electric brushes, in particular to a plum blossom hole electric brush which is easy to disassemble and replace. Background Art

[0002] Brush is an important component of the motor, responsible for conducting current between the rotating parts and the stationary parts. Because it is mostly made of graphite, it is also called carbon brush. Brush is mostly installed on the commutator or slip ring. It is a sliding contact body and needs to have the characteristics of smoothness, wear resistance, good conductivity, etc. A slip ring is usually equipped with at least two brushes to avoid short circuit due to poor contact of a single brush.

[0003] The patent number CN217009842U disclosed by searching is a convenient installation plum blossom hole brush, including a U-shaped shell, both sides of the U-shaped shell are provided with installation mechanisms, a brush body is fixedly connected between the two installation mechanisms, a limiting groove is provided at the bottom of the U-shaped shell, the brush body is inserted into the limiting groove, a fixing plate is provided on the top of the brush body, and both sides of the bottom of the fixing plate are fixedly connected with fixing mechanisms. The convenient installation plum blossom hole brush can facilitate the installation and removal of the brush body through the installation mechanism, and when the brush body is damaged, it can be convenient to disassemble and replace the brush body in time, which is convenient for operators to use. The fixing mechanism can achieve the purpose of fixing the brush body, prevent the brush body from being offset or falling off during operation, and ensure that the brush body can work normally;

[0004] The above patent shows that the plum blossom hole brush needs to be installed when in use. The unlocking method of the above fixing mechanism is relatively cumbersome when in use. The T-slot affects the installation and unlocking of the T-shaped block, which greatly increases the operation time when disassembling and assembling the plum blossom hole brush.

[0005] Therefore, it is necessary to propose a plum blossom hole brush that is easy to disassemble and replace to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a plum blossom hole electric brush which is easy to disassemble and replace, so as to solve the problem that the unlocking method of the above-mentioned fixing mechanism is relatively cumbersome when in use, and the T-shaped groove affects the installation and unlocking of the T-shaped card block, resulting in a significant increase in the operation time when disassembling and assembling the plum blossom hole electric brush.

[0007] To achieve the above object, the utility model provides the following technical solutions: a plum blossom hole brush that is easy to disassemble and replace, comprising a mounting shell, a cover plate, and a brush body, wherein a disassembly assembly for disassembling and assembling the brush body is provided on the inner side of the cover plate, and a fixing assembly for fixing the brush body is provided on the inner side of the mounting shell;

[0008] The disassembly assembly includes a connecting rod slidably arranged on the inner side of the cover plate, two limit grooves are provided at the upper end of the mounting shell, two limit blocks are symmetrically slidably arranged on the inner side of the limit grooves, a travel groove is provided on the inner side of the limit block, and the travel groove is inclined, two cross bars are fixedly arranged at the end of the connecting rod, and center bars are fixedly arranged at both ends of the cross bar, and the outer side of the center rod slides on the inner side of the corresponding travel groove, and the two corresponding travel grooves are mirror-imaged with the axis of the cross bar, the connecting rod is arranged in an inverted U shape, and a reset spring is fixedly arranged between the two corresponding limit blocks.

[0009] Preferably, the fixing assembly includes a plurality of rotating rods rotatably arranged on the inner wall of the mounting shell, a vertical frame is rotatably arranged at the other end of the rotating rod, and a weight-increasing block is fixedly arranged at the lower end of the vertical frame.

[0010] Preferably, a connecting groove is opened at one end corresponding to the two rotating rods, a sliding rod is slidably provided inside the connecting groove, a vertical rod is fixedly provided outside the sliding rod, a guide rod is fixedly provided at the other end of one of the vertical rods, and a guide groove is opened inside the other vertical rod.

[0011] Preferably, the outer side of the guide rod slides on the inner side of the guide groove, and an extension plate is fixedly provided at one corresponding end of the two vertical rods.

[0012] Preferably, a fixing spring is sleeved on the outer side of the guide rod, the end of the fixing spring is fixedly connected to one end of the corresponding extension plate, and one end of the vertical frame abuts against the outer side of the brush body.

[0013] Preferably, a handle is fixedly provided on the upper end of the cover plate, and an unlocking rod is fixedly provided on the upper end of the connecting rod.

[0014] Technical effects and advantages of the utility model:

[0015] 1. The connecting rod in the disassembly assembly on the cover plate drives multiple unlocking blocks to move at the same time, so that the cover plate can be unlocked quickly, and the brush body can be disassembled and assembled, which reduces the operation time. In addition, through the shape setting of the limit block and the limit groove, when installing the cover plate, only the limit block needs to be aligned with the limit groove to fix the cover plate and complete the installation of the brush body. The operation is simple and fast.

[0016] 2. By fixing the weight block at the lower end of the vertical frame in the assembly, the vertical frame is always set vertically when the brush body is not installed, which can prevent the vertical frame from tilting and interfering with the installation of the brush body. The ends of the two rotating rods are brought close to each other through the vertical rod and the fixed spring, so that the rotating rod clamps the brush body, increasing the stability of the brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1The utility model is a schematic diagram of a plum blossom hole brush which is easy to disassemble and replace.

[0018] Figure 2 This is a schematic diagram of the internal structure of the installation shell of the utility model.

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the cover plate and the mounting shell of the utility model.

[0020] Figure 4 This is a schematic diagram of the limit block structure of the utility model.

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the fixing component of the utility model.

[0022] Figure 6 It is a schematic diagram of the vertical rod connection structure of the utility model.

[0023] In the figure: 1. Mounting shell; 2. Cover plate; 3. Disassembly assembly; 301. Connecting rod; 302. Cross bar; 303. Limiting groove; 304. Limiting block; 305. Travel groove; 306. Center rod; 307. Reset spring; 4. Fixing assembly; 401. Rotating rod; 402. Vertical frame; 403. Weight block; 404. Connecting groove; 405. Sliding rod; 406. Vertical rod; 407. Guide rod; 408. Guide groove; 409. Extension plate; 410. Fixing spring; 5. Brush body. DETAILED DESCRIPTION

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

[0025] The utility model provides Figure 1 - Figure 6 The plum blossom hole brush shown is easy to disassemble and replace, comprising a mounting shell 1, a cover plate 2, and a brush body 5. A disassembly component 3 for disassembling and assembling the brush body 5 is provided on the inner side of the cover plate 2, and a fixing component 4 for fixing the brush body 5 is provided on the inner side of the mounting shell 1;

[0026] The disassembly component 3 includes a connecting rod 301 slidably arranged on the inner side of the cover plate 2, and two limit grooves 303 are provided on the upper end of the mounting shell 1. Two limit blocks 304 are symmetrically slidably arranged on the inner side of the limit grooves 303. A travel groove 305 is provided on the inner side of the limit block 304. The travel groove 305 is inclined to facilitate the movement of the limit block 304, thereby unlocking the cover plate 2. Two cross bars 302 are fixedly arranged at the end of the connecting rod 301, and center bars 306 are fixedly arranged at both ends of the cross bar 302. The outer side of the center bar 306 slides on the inner side of the corresponding travel groove 305. The two corresponding travel grooves 305 are mirror-imaged with the axis of the cross bar 302 to ensure that the two corresponding limit blocks 304 move closer to or away from each other. The connecting rod 301 is arranged in an inverted U shape, and a return spring 307 is fixedly arranged between the two corresponding limit blocks 304.

[0027] In the embodiment of the utility model, the fixing assembly 4 includes a plurality of rotating rods 401 rotatably arranged on the inner wall of the mounting shell 1, and a vertical frame 402 is rotatably arranged at the other end of the rotating rod 401, and a weight block 403 is fixedly arranged at the lower end of the vertical frame 402. Through the eccentric weight setting, the vertical frame 402 can always be arranged vertically downward without being subjected to external force.

[0028] In the embodiment of the utility model, a connecting groove 404 is formed at one end corresponding to the two rotating rods 401 , a sliding rod 405 is slidably disposed inside the connecting groove 404 , and a vertical rod 406 is fixedly disposed outside the sliding rod 405 .

[0029] In the embodiment of the utility model, a guide rod 407 is fixedly provided at the other end of one of the vertical rods 406, and a guide groove 408 is opened on the inner side of the other vertical rod 406. The outer side of the guide rod 407 slides on the inner side of the guide groove 408. When the vertical rods 406 move up and down, the guide rod 407 is prevented from detaching from the guide groove 408. An extension plate 409 is fixedly provided at the corresponding end of the two vertical rods 406.

[0030] In the embodiment of the utility model, a fixing spring 410 is sleeved on the outer side of the guide rod 407, and the end of the fixing spring 410 is fixedly connected to one end of the corresponding extension plate 409. One end of the vertical frame 402 abuts against the outer side of the brush body 5. The large contact area of ​​the vertical frame 402 makes the brush body 5 evenly stressed to prevent it from shaking.

[0031] In the embodiment of the utility model, a handle is fixedly provided on the upper end of the cover plate 2, and an unlocking lever is fixedly provided on the upper end of the connecting rod 301, so that the unlocking lever can be pressed by the thumb and the other four fingers can hook the handle.

[0032] Working principle: the operator prepares the brush body 5, the mounting shell 1 and the cover plate 2, and then buckles the four fingers except the thumb inside the handle, and then presses the unlocking lever with the thumb, or directly aligns the limit block 304 in the disassembly component 3 with the limit groove 303, so that the limit block 304 is moved by its own inclination angle, and then the limit block 304 enters the limit groove 303, and the two limit blocks 304 are squeezed by the return spring 307 so that the limit blocks 304 are clamped in the limit groove 303. When the brush body 5 needs to be taken out, it is only necessary to press the unlocking lever, so that the unlocking lever drives the connecting rod 301 to move, and then the connecting rod 301 drives the two cross bars 302 to move downward, and then the cross bar 302 drives the center rod 306 to move, and then the center rod 306 slides inside the travel groove 305, so that the two limit blocks 304 are close to each other, and then the cover plate 2 is unlocked, and the operation is simple;

[0033] When placing the brush body 5, the rotating rod 401 in the fixing assembly 4 is propped up, so that the rotating rod 401 drives the vertical frame 402 to move, and then the brush body 5 is placed between the multiple vertical frames 402, and then the rotating rod 401 is loosened, so that the fixing spring 410 works, and then the two extension plates 409 are driven to approach each other, and then the two vertical rods 406 are brought close to each other, and then the two vertical rods 406 slide inside the connecting groove 404 through the sliding rod 405. When the rotating rod 401 rotates, the vertical rod 406 moves between the two rotating rods 401 to connect the two rotating rods 401. When the vertical rod 406 moves, the guide rod 407 slides inside the guide groove 408, and then the vertical rod 406 is limited to prevent the two vertical rods 406 from deviating.

[0034] Furthermore, the vertical rod 406 can move within a certain range, so that the rotating rod 401 can be expanded within various ranges, thereby being able to fix the brush bodies 5 of various sizes.

Claims

1. A plum blossom hole brush that is easy to disassemble and replace, comprising a mounting shell (1), a cover plate (2), and a brush body (5), characterized in that: A disassembly component (3) for disassembling and assembling the brush body (5) is provided on the inner side of the cover plate (2), and a fixing component (4) for fixing the brush body (5) is provided on the inner side of the mounting shell (1); The disassembly assembly (3) comprises a connecting rod (301) slidably arranged on the inner side of the cover plate (2); two limit grooves (303) are provided at the upper end of the mounting shell (1); two limit blocks (304) are symmetrically slidably arranged on the inner side of the limit grooves (303); a travel groove (305) is provided on the inner side of the limit block (304); the travel groove (305) is arranged in an inclined manner; two cross bars (302) are fixedly arranged at the end of the connecting rod (301); a center rod (306) is fixedly arranged at both ends of the cross bar (302); the outer side of the center rod (306) slides on the inner side of the corresponding travel groove (305); the two corresponding travel grooves (305) are arranged in a mirror image with the axis of the cross bar (302); the connecting rod (301) is arranged in an inverted U shape; and a return spring (307) is fixedly arranged between the two corresponding limit blocks (304).

2. A plum blossom hole brush that is easy to disassemble and replace according to claim 1, characterized in that: The fixing assembly (4) comprises a plurality of rotating rods (401) rotatably arranged on the inner wall of the mounting shell (1); a vertical frame (402) is rotatably arranged at the other end of the rotating rod (401); and a weight-increasing block (403) is fixedly arranged at the lower end of the vertical frame (402).

3. A plum blossom hole brush that is easy to disassemble and replace according to claim 2, characterized in that: A connecting groove (404) is provided at one corresponding end of the two rotating rods (401), a sliding rod (405) is slidably provided inside the connecting groove (404), a vertical rod (406) is fixedly provided outside the sliding rod (405), a guide rod (407) is fixedly provided at the other end of one of the vertical rods (406), and a guide groove (408) is provided inside the other vertical rod (406).

4. A plum blossom hole brush that is easy to disassemble and replace according to claim 3, characterized in that: The outer side of the guide rod (407) slides on the inner side of the guide groove (408), and an extension plate (409) is fixedly provided at one corresponding end of the two vertical rods (406).

5. The plum blossom hole brush that is easy to disassemble and replace according to claim 4 is characterized in that: A fixing spring (410) is sleeved on the outside of the guide rod (407), the end of the fixing spring (410) is fixedly connected to one end of the corresponding extension plate (409), and one end of the vertical frame (402) abuts against the outside of the brush body (5).

6. The plum blossom hole brush that is easy to disassemble and replace according to claim 1, characterized in that: A handle is fixedly provided on the upper end of the cover plate (2), and an unlocking rod is fixedly provided on the upper end of the connecting rod (301).

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