Motor anti-locked-rotor device for lithium electric drill

Abstract

The utility model relates to the technical field of lithium electric drills, in particular to a motor anti-locked-rotor device for a lithium electric drill, which comprises a rotating plate and a rotating ring which are distributed in parallel, and a plurality of first meshing teeth distributed in an annular array are fixedly mounted on one side, close to the rotating ring, of the rotating plate. A plurality of second meshing teeth distributed in an annular array mode are fixedly installed on the side, close to the rotating plate, of the rotating ring, the rotating plate and the rotating ring which can rotate are arranged, a telescopic plate capable of transversely moving in a reciprocating mode is arranged between the rotating plate and the rotating ring, and the position of the telescopic plate is switched. The telescopic plate drives the rotating plate and the telescopic plate drives the rotating ring to switch back and forth, and when a drill bit is clamped and needs to quickly release the connection relation between the drill bit and the output end of the motor, the telescopic plate is far away from the rotating plate and is meshed with the rotating ring through surface meshing teeth, and then fan blades on the surface of the rotating ring are driven to rotate; and heat generated by overload of the small motor in the lithium electric drill is timely discharged out of the shell of the lithium electric drill.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium electric drill technical field, concretely relates to a motor anti -stalling device for lithium electric drill. BACKGROUND

[0002] Lithium electric drill is a kind of small drilling tool with convenient carrying, it is composed of small motor, control switch, drill chuck and drill bit, the rotation of drill chuck and drill bit is controlled by the on-off control of small motor, and drilling operation is realized, due to small size, flexible use, so the use scene is very extensive.

[0003] The Chinese utility model patent with the authorization announcement number "CN216096551U", specifically "a motor anti-stalling device for lithium electric drill", by the mutual separation of main clamping block and vice clamping block, the synchronous driving relationship of two turntables is disconnected, so that the problem of motor internal overheating and damage caused by motor continuing to drive when drill bit is jammed is solved;

[0004] But the above-mentioned device can separate the two turntables meshed and connected together, but this process needs a certain time, because lithium electric drill is in drilling operation, drill bit may be jammed into gap due to improper operation of operator, and drilling stops rotating, at this time, two turntables do not need to be separated, operator only needs to take out drill bit from gap, only when drill bit is jammed in drilling position and cannot be taken out, two turntables need to be separated, therefore, when two turntables are separated, motor generates a certain heat due to excessive driving load, the above-mentioned device cannot discharge heat in time, and there is the problem of inconvenient use. UTILITY MODEL CONTENT

[0005] In view of the above-mentioned shortcomings of prior art, the utility model provides a motor anti-stalling device for lithium electric drill, which can effectively solve the problems in the background art.

[0006] To achieve the above purpose, the utility model is realized by the following technical schemes:

[0007] The utility model provides a motor anti -stalling device for lithium electric drill, including parallel distribution's rotating plate and rotating ring, the rotating plate is fixedly installed first meshing tooth that is annular array distribution to rotating ring one side close, rotating ring is fixedly installed second meshing tooth that is annular array distribution to rotating plate one side close, the outer ring wall of rotating ring installs a plurality of fan blade, the telescopic plate parallel and rotation is installed between rotating plate and rotating ring, the telescopic plate is installed a plurality of first drive tooth that is engaged with first meshing tooth to rotating plate one side close, the telescopic plate is installed a plurality of second drive tooth that is engaged with second meshing tooth to rotating ring one side close, drive seat rotation is arranged in rotating ring one side, the drive seat one end sliding insertion has the drive rod that passes through rotating ring and is fixedly installed with telescopic plate, the adjusting assembly includes the adjusting ring that is sleeved on the outer ring wall of telescopic plate, and can telescopic sliding between rotating plate and rotating ring.

[0008] Further, the outer ring wall of the telescopic plate is fixedly sleeved with a first fixing ring, and the inner ring wall of the adjusting ring is provided with a first annular groove for limiting sleeving with the first fixing ring.

[0009] Further, the rotating ring is fixedly installed with a movable ring away from the telescopic plate, the outer ring wall of the movable ring is limitingly sleeved with a connecting ring, and the outer ring wall of the connecting ring is vertically fixedly installed with two fixed rods which are centrally symmetrically distributed about the drive seat.

[0010] Further, the outer ring wall of the movable ring is fixedly sleeved with a second fixing ring, and the inner ring wall of the connecting ring is provided with a second annular groove for limiting sleeving with the second fixing ring.

[0011] Further, the adjusting assembly further comprises telescopic cylinders arranged on the top and bottom of the rotating plate, the telescopic cylinders are provided with telescopic rods at the output ends, and the telescopic rods are vertically fixedly installed with connecting blocks away from the corresponding telescopic cylinders.

[0012] Further, the two connecting blocks are vertically fixedly installed on the outer ring wall of the adjusting ring and are centrally symmetrically distributed about the drive rod.

[0013] The technical scheme provided by the utility model has the following beneficial effects compared with the known prior art:

[0014] The rotating plate and the rotating ring can be rotated, the telescopic plate which can move laterally and reciprocally is arranged between the rotating plate and the rotating ring, the position of the telescopic plate is switched, and the connection between the drill bit and the motor output end is switched back and forth between the telescopic plate driving the rotating plate and the telescopic plate driving the rotating ring. When the drill bit is stuck and needs to be quickly removed, the telescopic plate is away from the rotating plate and engages with the rotating ring through the surface meshing teeth, thereby driving the fan blades on the surface of the rotating ring to rotate, the heat generated by the small motor overload in the lithium electric drill is discharged outside the lithium electric drill shell in time, and the utility model has the characteristics of convenient use. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0017] Figure 2 It is a schematic diagram of the telescopic plate mounting structure of the present application.

[0018] Figure 3 It is a schematic diagram of the rotating ring mounting structure of the present application.

[0019] Figure 4 It is a schematic diagram of the adjusting assembly structure of the present application.

[0020] The numbers in the figure represent respectively:

[0021] 1, rotating plate; 11, first meshing tooth;

[0022] 2, telescopic plate; 21, first driving tooth; 22, second driving tooth;

[0023] 3, rotating ring; 31, second meshing tooth; 32, fan blade; 33, movable ring; 34, connecting ring; 35, fixed rod;

[0024] 4, driving seat; 41, driving rod;

[0025] 51, telescopic cylinder; 52, telescopic rod; 53, connecting block; 54, adjusting ring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical scheme in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0027] The present application will be further described below in combination with the embodiments. EMBODIMENT

[0028] Referring to Figures 1-4For the first embodiment of the utility model discloses a motor anti -stall device for lithium electric drill, including parallel distribution's rotating plate 1 and rotating ring 3, rotating plate 1 is fixedly installed on the side close to rotating ring 3 a plurality of annular array distribution's first meshing tooth 11, rotating ring 3 is fixedly installed on the side close to rotating plate 1 a plurality of annular array distribution's second meshing tooth 31, the outer ring wall of rotating ring 3 installs a plurality of fan blade 32, the telescopic plate 2 is parallel and rotationally installed between rotating plate 1 and rotating ring 3, the telescopic plate 2 is installed on the side close to rotating plate 1 a plurality of with the first meshing tooth 11 meshing's first drive tooth 21, the telescopic plate 2 is installed on the side close to rotating ring 3 a plurality of with the second meshing tooth 31 meshing's second drive tooth 22, a plurality of meshing teeth are consistent in specification, position is opposite, and a plurality of meshing teeth are all designed as the pointed head type at end portion, so it is convenient to be clamped into mutual meshing, the drive seat 4 rotationally arranged on the side of rotating ring 3, the drive seat 4 one end slidingly inserts the drive rod 41 fixedly installed through rotating ring 3 and telescopic plate 2, the adjusting assembly includes the adjusting ring 54 of limiting sleeveing on the outer ring wall of telescopic plate 2, and can be telescopic sliding between rotating plate 1 and rotating ring 3, the design of adjusting ring 54 can move telescopic plate 2 between rotating plate 1 and rotating ring 3 under the premise of not affecting the rotation of telescopic plate 2 and adjust the interval. Embodiment

[0029] Refer to Figures 1-4 For the second embodiment of the utility model, which is different from the first embodiment is: the outer ring wall of telescopic plate 2 is fixedly sleeved with the first fixed ring, the inner ring wall of adjusting ring 54 is provided with the first annular groove convenient for limiting sleeveing with the first fixed ring, the side away from telescopic plate 2 of rotating ring 3 is fixedly installed with movable ring 33, the outer ring wall of movable ring 33 is limitingly sleeved with connecting ring 34, the outer ring wall of connecting ring 34 is vertically fixedly installed with two fixed rods 35 about the center symmetry distribution of drive seat 4, the outer ring wall of movable ring 33 is fixedly sleeved with the second fixed ring, the inner ring wall of connecting ring 34 is provided with the second annular groove convenient for limiting sleeveing with the second fixed ring, the adjusting assembly further includes the telescopic cylinder 51 arranged on the top and bottom of rotating plate 1, two telescopic cylinders 51 are all installed on the inner cavity wall of lithium electric drill shell, the output end of telescopic cylinder 51 is all installed with telescopic rod 52, the end away from corresponding telescopic cylinder 51 of telescopic rod 52 is all vertically fixedly installed with connecting block 53, two connecting blocks 53 are all vertically fixedly installed on the outer ring wall of adjusting ring 54, and about the center symmetry distribution of drive rod 41.

[0030] The rest of the structure is same with the structure of embodiment 1.

[0031] The working process of the utility model is as follows:

[0032] First, the rotating plate 1 is fixed with the drill bit clamp of the lithium electric drill, the drill bit is detachably installed in the drill bit clamp, so when the rotating plate 1 rotates, the drill bit clamp and the drill bit are rotated, and the drilling operation is realized;

[0033] Second, the driving seat 4 is fixedly connected with the output end of the small motor in the lithium electric drill, and the driving seat 4 is rotated by the small motor;

[0034] Finally, according to the actual use scene, two cases are included;

[0035] When the drill bit drills normally, the driving seat 4 drives the driving rod 41 to rotate, and then drives the telescopic plate 2 to rotate, through the meshing of the plurality of first driving teeth 21 and the plurality of first meshing teeth 11, the rotation of the rotating plate 1 is realized, and the rotation of the drill bit is realized, and then the normal drilling operation is started;

[0036] When the drill bit is stuck, when the drill bit is found to be stuck in the drill hole and cannot be smoothly pulled out, the telescopic cylinder 51 can be started, and then the connecting block 53 is driven by the telescopic rod 52, so that the adjusting ring 54 is driven, that is, the telescopic plate 2 is gradually pushed away from the rotating plate 1, at this time, the plurality of first driving teeth 21 are gradually away from the corresponding first meshing teeth 11, until completely separated and not in contact, at this time, the plurality of second driving teeth 22 on the other side of the telescopic plate 2 are just clamped into the plurality of second meshing teeth 31 on one side of the rotating ring 3, the rotation of the telescopic plate 2 drives the rotating ring 3 to rotate, and then drives the fan blade 32 to rotate, so that the heat generated by the small motor overload in the lithium electric drill is discharged outside the lithium electric drill shell in time, and the lithium electric drill has the characteristics of convenient use.

[0037] The above embodiments are only used to illustrate the technical solutions of the present application, but not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A motor anti-stall device for a lithium-ion drill, comprising a rotating plate (1) and a rotating ring (3) arranged in parallel, wherein a plurality of first meshing teeth (11) arranged in a ring array are fixedly installed on the side of the rotating plate (1) near the rotating ring (3), and a plurality of second meshing teeth (31) arranged in a ring array are fixedly installed on the side of the rotating ring (3) near the rotating plate (1), characterized in that, The outer ring wall of the rotating ring (3) is equipped with several fan blades (32), and also includes: The telescopic plate (2) is installed parallel to and rotatably between the rotating plate (1) and the rotating ring (3). The telescopic plate (2) has a plurality of first drive teeth (21) that mesh with the first meshing teeth (11) installed on the side near the rotating plate (1), and a plurality of second drive teeth (22) that mesh with the second meshing teeth (31) installed on the side near the rotating ring (3). The drive seat (4) is rotatably set on one side of the rotating ring (3), and a drive rod (41) that passes through the rotating ring (3) and is fixedly installed on the telescopic plate (2) is slidably inserted at one end of the drive seat (4). The adjustment assembly includes an adjustment ring (54) that is fitted with a limiting sleeve on the outer ring wall of the telescopic plate (2) and can slide telescopically between the rotating plate (1) and the rotating ring (3).

2. The anti-stall device for a lithium-ion drill motor according to claim 1, characterized in that, The outer ring wall of the telescopic plate (2) is fixedly fitted with a first fixing ring, and the inner ring wall of the adjusting ring (54) is provided with a first annular groove for easy fitting with the first fixing ring.

3. The anti-stall device for a lithium-ion drill motor according to claim 1, characterized in that, A movable ring (33) is fixedly installed on the side of the rotating ring (3) away from the telescopic plate (2). A connecting ring (34) is fitted on the outer ring wall of the movable ring (33). Two fixed rods (35) are fixedly installed vertically on the outer ring wall of the connecting ring (34) in a centrally symmetrical arrangement with respect to the drive seat (4).

4. The anti-stall device for a lithium-ion drill motor according to claim 3, characterized in that, The outer ring wall of the movable ring (33) is fixedly fitted with a second fixing ring, and the inner ring wall of the connecting ring (34) is provided with a second annular groove for easy fitting with the second fixing ring.

5. The anti-stall device for a lithium-ion drill motor according to claim 1, characterized in that, The adjustment assembly also includes telescopic cylinders (51) disposed at the top and bottom of the rotating plate (1). Each telescopic cylinder (51) has a telescopic rod (52) installed at its output end. Each telescopic rod (52) has a connecting block (53) vertically fixed at the end away from the corresponding telescopic cylinder (51).

6. A motor anti-stall device for a lithium-ion drill according to claim 5, characterized in that, Both connecting blocks (53) are vertically fixed on the outer ring wall of the adjusting ring (54) and are centrally symmetrical about the drive rod (41).

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