Electric tool and electric drill

Abstract

The utility model discloses an electric tool and an electric drill. The electric tool comprises a shell. The mounting assembly is used for clamping the working accessory; the driving mechanism comprises a mounting shell, a driving part and a transmission assembly, the mounting shell is arranged on the shell, the mounting shell is provided with a mounting cavity, the transmission assembly is arranged in the mounting cavity, the driving part is mounted on the shell, the output end of the driving part is connected with the transmission assembly, and the transmission assembly is connected with the mounting assembly; the transmission assembly is configured to drive the mounting assembly to rotate under the driving of the driving piece; the adjusting mechanism comprises an adjusting assembly and a driving assembly, the adjusting assembly is arranged on the mounting shell, the driving assembly is arranged on the shell and connected with the adjusting assembly, and the driving assembly is configured to drive the adjusting assembly to adjust the transmission assembly so as to adjust the rotating speed of the mounting assembly. In this way, the adjusting mechanism is arranged to adjust the rotating speed of the working accessory installed on the clamping assembly, so that the rotating speed requirements of different scenes are met.

Description

TECHNICAL FIELD

[0001] The utility model embodiment relates to electric appliance field, especially a kind of electric tool and electric drill. BACKGROUND

[0002] Electric tool as a kind of efficient tool, plays an important role in industrial generation and daily life. It can be installed with different working accessories according to different working environment, and provide power to working accessories, so as to play different roles. For example, working accessories can be screwdriver, drill or other, when installing screwdriver, electric tool is electric screwdriver, and when installing drill, electric tool is electric drill.

[0003] In some fine scenarios, it is necessary to reduce the rotational speed of the electric tool driving working accessories to provide greater torque. The electric tools on the market generally adjust the output current of the battery to adjust the output power of the motor driving the working accessories to rotate, thereby changing the torque brought by the rotation of the working accessories. However, in the case of fixed power, the electric tool cannot change the rotational speed of the driving working accessories to achieve the purpose of adjusting the torque, which has certain limitations and affects the user experience, thereby causing inconvenience. UTILITY MODEL CONTENT

[0004] In order to solve the above technical problems, the utility model embodiment provides an electric tool and an electric drill capable of adjusting the rotational speed of the driving working accessories.

[0005] The utility model embodiment solves its technical problems by adopting the following technical solutions:

[0006] An electric tool, comprising a housing; a mounting assembly for clamping a working accessory; a driving mechanism comprising a mounting shell, a driving member and a transmission assembly, the mounting shell is provided in the housing, the mounting shell is provided with a mounting cavity, the transmission assembly is arranged in the mounting cavity, the driving member is mounted on the housing, and the output end of the driving member is connected with the transmission assembly, the transmission assembly is connected with the mounting assembly, and the transmission assembly is configured to drive the mounting assembly to rotate under the driving of the driving member; an adjusting mechanism comprising an adjusting assembly and a driving assembly, the adjusting assembly is arranged in the mounting shell, and the driving assembly is arranged in the housing and connected with the adjusting assembly, the driving assembly is configured to drive the adjusting assembly to adjust the transmission assembly, so as to adjust the rotational speed of the mounting assembly.

[0007] In an alternative mode, the mounting shell is provided with a through opening in communication with the mounting cavity, the through opening is configured to extend along the direction of the rotation axis of the mounting assembly; the adjusting assembly comprises a conversion member and a pushing member, the conversion member is arranged between the mounting shell and the driving assembly, wherein the conversion member is provided with a guide opening arranged along a preset track, and the guide opening is in communication with the through opening, one end of the pushing member passes through the through opening and is connected to the transmission assembly, and the other end of the pushing member is arranged in the guide opening, the driving assembly is configured to drive the conversion member to rotate, so as to drive the pushing member to move along the through opening and the guide opening, so that the pushing member adjusts the transmission assembly, thereby adjusting the rotation speed of the mounting assembly.

[0008] In an alternative mode, the electric tool further comprises a sensor and two magnets, one of the mounting shell and the conversion member is provided with the sensor, and the other is provided with the two magnets in a spaced manner, and the sensor is used to detect the position of the conversion member through the magnets when the conversion member rotates;

[0009] The sensor is connected to a control board, the driving assembly is connected to the control board, and the control board is used to control the driving assembly to start or stop driving the conversion member to rotate according to the position of the conversion member detected by the sensor.

[0010] In an alternative mode, the electric tool further comprises a display screen and a first button arranged on the display screen, the display screen is arranged at the rear end or side of the shell, the first button is connected to the control board, and the first button is configured to control the driving assembly through the control board.

[0011] In an alternative mode, the electric tool further comprises a handheld shell, and the handheld shell is in communication with the shell.

[0012] In an alternative mode, the electric tool further comprises a display member arranged on the handheld shell and a second button arranged on the display member, and the second button and the driving member are both connected to the control board, and the second button is used to drive the driving member through the control board.

[0013] In an alternative mode, the handheld shell is provided with a charging port, and a power mechanism is arranged in the handheld shell, and the charging port is connected to the power mechanism.

[0014] In an alternative mode, the driving assembly comprises a power member and a driving gear, the conversion member is provided with a rack, the driving gear is engaged with the rack, and the power member is configured to drive the driving gear to rotate, so as to drive the conversion member to rotate.

[0015] In an alternative mode, the transmission assembly comprises an output transmission structure and at least one set of input transmission structures, one end of the input transmission structure is connected with the driving member, the other end of the input transmission structure is connected with the output transmission structure, the output transmission structure is connected with the mounting assembly, the output transmission structure or the input transmission structure is connected with the pushing member, the output transmission structure or the input transmission structure connected with the pushing member is defined as a predetermined transmission structure; when the predetermined transmission structure is in the first position under the pushing of the pushing member, the predetermined transmission structure is clamped with the mounting shell, the speed of the transmission assembly driving the mounting assembly is V1; when the predetermined transmission structure is in the second position under the pushing of the pushing member, the predetermined transmission structure is unclamped with the mounting shell, the speed of the transmission assembly driving the mounting assembly is V2, and V2>V1 is satisfied.

[0016] In an alternative mode, the number of the input transmission structures is two sets, the two sets of input transmission structures are arranged adjacent to each other and connected, each set of input transmission structures comprises an input planetary set and an input inner ring gear connected with each other, the input inner ring gear is arranged in the mounting cavity and surrounds the input planetary set, the input planetary set is connected with the output end of the driving member, the output transmission structure comprises an output planetary set and an output inner ring gear connected with each other, the output inner ring gear is arranged in the mounting cavity and surrounds the output planetary set, the output inner ring gear is fixed in the mounting shell and connected with the input planetary set, and the output planetary set is connected with the mounting assembly; wherein the predetermined transmission structure is the input transmission structure closest to the output transmission structure, the pushing member is connected with the input inner ring gear, when the input inner ring gear is in the first position under the pushing of the pushing member, the input inner ring gear is clamped with the inner wall of the mounting shell and is in a static state; when the input inner ring gear is in the second position under the pushing of the pushing member, the input inner ring gear is unclamped with the inner wall of the mounting shell, and the input inner ring gear rotates synchronously with the input planetary set.

[0017] In an alternative mode, the outer peripheral wall of the input inner ring gear is provided with a plurality of clamping grooves distributed along the circumference of the input inner ring gear, and the mounting shell is provided with a plurality of clamping protrusions, when the input inner ring gear is in the first position, one clamping protrusion is located in one clamping groove.

[0018] The technical problems of the embodiments of the utility model are also solved by adopting the following technical solutions:

[0019] A power drill comprises the electric tool and the working accessory, and the working accessory is a drill bit.

[0020] The beneficial effects of this utility model embodiment are as follows: The power tool provided by this utility model embodiment includes a housing; a mounting assembly for clamping working attachments; a drive mechanism including a mounting shell, a drive component, and a transmission assembly, wherein the mounting shell is disposed in the housing and has a mounting cavity, the transmission assembly is disposed in the mounting cavity, the drive component is mounted in the housing and its output end is connected to the transmission assembly, the transmission assembly is connected to the mounting assembly, and the transmission assembly is configured to drive the mounting assembly to rotate under the drive of the drive component; and an adjustment mechanism including an adjustment assembly and a drive assembly, wherein the adjustment assembly is disposed in the mounting shell, the drive assembly is disposed in the housing and connected to the adjustment assembly, and the drive assembly is configured to drive the adjustment assembly to adjust the transmission assembly, thereby adjusting the rotational speed of the mounting assembly. With the above structure, the power tool can, during use, move the drive assembly to cause the adjustment assembly to adjust the transmission assembly, thereby driving the rotational speed of the mounting assembly, and thus changing the rotational speed of the working attachment mounted on the clamping assembly to meet the rotational speed requirements of different scenarios, which is beneficial to improving the user experience and making it more convenient to use. Attached Figure Description

[0021] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0022] Figure 1 This is a schematic diagram of the power tool provided by this utility model;

[0023] Figure 2 yes Figure 1 Exploded structural diagram;

[0024] Figure 3 It is along Figure 1 A sectional view of P;

[0025] Figure 4 This is an exploded view of part of the structure of a power tool;

[0026] Figure 5 This is a cross-sectional view of the adjusting component in its first position relative to the mounting housing;

[0027] Figure 6 This is a cross-sectional view of the adjusting component in the second position relative to the mounting housing;

[0028] Figure 7 This is a schematic diagram of the adjustment mechanism;

[0029] Figure 8 yes Figure 6 Enlarged view of A in the middle;

[0030] Figure 9 is Figure 6 Enlarged view of B in FIG.

[0031] Explanation of reference numerals in the drawings:

[0032] 1. power tool; 2. housing; 3. mounting assembly; 4. drive mechanism; 5. adjustment mechanism; 6. sensor; 7. magnet; 8. display screen; 9. first button; 10. handgrip housing; 11. display element; 12. second button; 13. lighting assembly; 14. power adjustment assembly;

[0033] 21. control panel;

[0034] 210. support;

[0035] 31. output shaft; 32. clamping element; 33. clamping element;

[0036] 41. mounting housing; 42. transmission assembly; 43. drive element;

[0037] 401. mounting cavity; 402. through-opening;

[0038] 413. shoulder; 414. clamping projection;

[0039] 42a. input transmission structure; 44b. output transmission structure;

[0040] 421. input planetary set; 422. input inner ring;

[0041] 4211. input sun gear; 4212. input planet gear; 4213. input planet carrier;

[0042] 422a. first inner ring; 422b. second inner ring;

[0043] 421a. first input planetary set; 421b. second input planetary set;

[0044] 4211a. first sun gear; 4212a. first planet gear; 4213a. first planet carrier; 42131. first planet shaft; 4211b. second sun gear; 4212b. second planet gear; 4213b. second planet carrier; 42132. second planet shaft;

[0045] 4221. clamping groove; 4222. ring groove;

[0046] 441. output planetary set; 442. output inner ring;

[0047] 4411. output sun gear; 4412. output planet gear; 4413. output planet carrier; 44131. third planet shaft;

[0048] 44132、accommodation groove;

[0049] 51、adjusting assembly;52、driving assembly;

[0050] 511、conversion piece;512、pushing piece;

[0051] 5111、guide opening;5112、gear rack;

[0052] 521、power piece;522、driving gear;523、torsional spring;524、gear box;

[0053] 101、charging port;power mechanism 102;

[0054] 141、potentiometer;142、rear end cover;transition gear 143;1421、internal teeth. DETAILED DESCRIPTION

[0055] For the convenience of understanding the present application, the present application will be described in more detail below in conjunction with the drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween. The terms "upper", "lower", "inner", "outer", "vertical", "horizontal" and the like used in the specification indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0056] Unless otherwise defined, all technical and scientific terms used in the specification are the same as those commonly understood by those skilled in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification includes any and all combinations of one or more related listed items.

[0057] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0058] As Figure 1-2As shown, the electric tool 1 provided by one of the embodiments of the utility model, including casing 2, installation component 3, drive mechanism 4 and adjusting mechanism 5, casing 2 is used to contain drive mechanism 4 and adjusting mechanism 5.Installation component 3 is used to hold work attachment, drive mechanism 4 is connected with installation component 3, drive mechanism 4 is used to drive installation component 3 to rotate, adjusting mechanism 5 is connected with drive mechanism 4.Adjusting mechanism 5 is used to adjust the rotating speed of drive mechanism 4 driving installation component 3 to rotate.

[0059] It can be understood that the shape of casing 2 can be cylindrical, can also be square tube, of course, can also be other shapes, and is specifically set according to needs.In the embodiment, the shape of casing 2 is cylindrical.

[0060] It is worth mentioning that the type of work attachment held by installation component 3 can be selected according to user needs, for example, can be drill bit, can also be screwdriver, of course, can also be other.

[0061] In some embodiments, as shown, Figure 3 Installation component 3 includes output shaft 31 and clamping piece 32, one end of output shaft 31 is connected with drive mechanism 4, clamping piece 32 is sleeved on the other end of output shaft 31, and clamping piece 32 is used to hold work attachment.Setting installation component 3 is advantageous to quickly disassemble and install work attachment, facilitates user operation and improves user experience.

[0062] In some embodiments, as shown, Figure 4 Installation component 3 further includes clamping piece 33, clamping piece 33 is connected with drive mechanism 4, and clamping piece 33 is provided with clamping hole for clamping output shaft 31.When drive mechanism 4 drives clamping piece 33 to rotate, output shaft 31 will rotate synchronously with clamping piece 33, so that clamping piece 32 installed in output shaft 31 holds work attachment and rotates.

[0063] In some embodiments, as shown, Figure 3 Drive mechanism 4 includes installation shell 41, drive piece 43 and transmission assembly 42, and installation shell 41 is arranged in casing 2.Installation shell 41 is provided with installation cavity 401, transmission assembly 42 is arranged in installation cavity 401, drive piece 43 is installed in casing 2, and the output end of drive piece 43 is connected with transmission assembly 42, transmission assembly 42 is connected with installation component 3, and transmission assembly 42 is configured to drive installation component 3 to rotate under the drive of drive piece 43.Wherein, drive piece 43 can be motor, can also be other, as long as power can be provided to transmission assembly 42.

[0064] In some embodiments, as shown, Figure 4As shown, the transmission assembly 42 comprises at least one set of input transmission structure 42a and output transmission structure 44b, one end of the input transmission structure 42a is connected with the driving member 43, the other end of the input transmission structure 42a is connected with the output transmission structure 44b, the output transmission structure 44b is connected with the mounting assembly 3, and the output transmission structure 44b or the input transmission structure 42a is connected with the adjusting mechanism 5.

[0065] The output transmission structure 44b or the input transmission structure 42a connected with the adjusting mechanism 5 is defined as a predetermined transmission structure, when the adjusting mechanism 5 adjusts the predetermined transmission structure, the rotating speed of the mounting assembly 3 driven by the transmission assembly 42 can be changed. Specifically, when the predetermined transmission structure is in the first position under the action of the adjusting mechanism 5, the predetermined transmission structure is clamped with the mounting shell 41, and the speed of the driving member 43 driving the mounting assembly 3 through the transmission assembly 42 is V1; when the predetermined transmission structure is in the second position under the action of the adjusting mechanism 5, the predetermined transmission structure is unclamped with the mounting shell 41, and the speed of the driving member 43 driving the mounting assembly 3 through the transmission assembly 42 is V2, which satisfies V2>V1.

[0066] It should be understood that the number of input transmission structures 42a can be set as needed, which can be one set, two sets or more than two sets, when the number of input transmission structures 42a is two sets or more than two sets, the adjacent input transmission structures 42a are connected with each other to realize the transmission of the power of the driving member 43 and finally output the power by the output transmission structure 44b.

[0067] In some embodiments, as shown in the figures, Figure 4 The number of input transmission structures 42a is two sets, the two sets of input transmission structures 42a are adjacent and connected, each set of input transmission structures 42a comprises an input planetary set 421 and an input inner ring gear 422 connected with each other, the input inner ring gear 422 is arranged in the mounting cavity 401 and surrounds the input planetary set 421, and the input planetary set 421 is connected with the output end of the driving member 43. In this embodiment, the input planetary set 421 comprises an input sun gear 4211, a plurality of input planet gears 4212 and an input planet carrier 4213, the input sun gear 4211 is connected with the driving member 43, the plurality of input planet gears 4212 are respectively meshed with the input sun gear 4211 and the input inner ring gear 422, and the plurality of input planet gears 4212 are connected through the input planet carrier 4213.

[0068] For convenience of distinction, as shown in the figures, Figure 4As shown, the input internal gear rings 422 in the two sets of input transmission structures 42a are named as the first internal gear ring 422a and the second internal gear ring 422b, respectively. The input planetary sets 421 in the two sets of input transmission structures 42a are named as the first input planetary set 421a and the second input planetary set 421b, respectively. Then, the input sun gear 4211 of the first input planetary set 421a is named as the first sun gear 4211a, and the multiple input planetary gears 4212 of the first input planetary set 421a are all named as the first planetary gear 4212a. The input planet carrier 4213 of the first input planetary set 421a is named as the first planet carrier 4213a.

[0069] The input sun wheel 4211 of the second input planetary group 421b is named the second sun wheel 4211b, the multiple input planet wheels 4212 of the second input planetary group 421b are all named the second planet wheel 4212b, and the input planet carrier 4213 of the second input planetary group 421b is named the second planet carrier 4213b.

[0070] like Figure 3 and Figure 4 As shown, the first sun gear 4211a, as part of the transmission assembly 42, is connected to the output end of the drive member 43. Multiple first planetary gears 4212a mesh with the first internal gear ring 422a and the first sun gear 4211a respectively. The first planetary carrier 4213a is provided with multiple first planetary shafts 42131, and each first planetary shaft 42131 is connected to one first planetary gear 4212a. When the first sun gear 4211a rotates under the action of the drive member 43, the multiple first planetary gears 4212a rotate together around the first sun gear 4211a under the action of the first planetary carrier 4213a, and simultaneously, the first planetary carrier 4213a also rotates synchronously with the multiple planetary gears.

[0071] like Figure 4 As shown, the second sun gear 4211b is connected to and rotates synchronously with the first planetary carrier 4213a. Multiple second planetary gears 4212b mesh with the second internal gear ring 422b and the second sun gear 4211b, respectively. The second planetary carrier 4213b is provided with multiple second planetary shafts 42132, and each second planetary shaft 42132 is connected to one first planetary gear 4212a. When the first planetary carrier 4213a rotates, the second sun gear 4211b also rotates synchronously with it. Under the action of the second planetary carrier 4213b, the multiple second planetary gears 4212b rotate synchronously around the second sun gear 4211b, and simultaneously, the second planetary carrier 4213b also rotates synchronously with the multiple second planetary gears 4212b. In this embodiment, the second sun gear 4211b and the first planetary carrier 4213a are integrally formed, which helps improve installation efficiency.

[0072] In some embodiments, such as Figure 3With Figure 4 As shown in FIG. 4B, the output transmission structure 44b comprises an output planetary set 441 connected with an output inner ring 442, the output inner ring 442 is arranged in the mounting cavity 401 and surrounds the output planetary set 441, the output inner ring 442 is fixed to the mounting shell 41 and connected with the input planetary set 421, and the output planetary set 441 is connected with the mounting assembly 3. In the embodiment, the output planetary set 441 comprises an output sun gear 4411, a plurality of output planet gears 4412 and an output carrier 4413, the output sun gear 4411 is connected with and rotates synchronously with the second carrier 4213b, each of the plurality of output planet gears 4412 is engaged with the output inner ring 442 and the output sun gear 4411, the output carrier 4413 is provided with a plurality of third planet shafts 44131, and one of the third planet shafts 44131 is connected with one of the output planet gears 4412, and the output carrier 4413 is connected with the mounting assembly 3. When the second carrier 4213b rotates, the output sun gear 4411 also rotates synchronously with the second carrier 4213b, and the plurality of output planet gears 4412 rotates synchronously around the output sun gear 4411 under the action of the output carrier 4413, so as to drive the mounting assembly 3 to rotate.

[0073] In some embodiments, as shown in FIG. 4B, the output carrier 4413 is provided with a receiving groove 44132, and a clamping piece 33 is arranged in the receiving groove 44132. The clamping piece 33 is clamped with the inner wall surface of the receiving groove 44132, so as to drive the output shaft 31 to rotate synchronously when the output carrier 4413 drives the clamping piece 33 to rotate. Figure 4

[0074] In some embodiments, as shown in FIG. 4B, the inner wall of the mounting shell 41 is provided with a shoulder 413, and the shoulder 413 abuts against one end of the output inner ring 442. Under the limiting action of the shoulder 413, the risk that the second inner ring 422b is separated from the mounting shell 41 can be reduced, which is beneficial to improve the stability of the driving mechanism 4. Figure 5-6

[0075] It can be understood that the predetermined transmission structure can be the input transmission structure 42a or the output transmission structure 44b, and is determined according to one connected with the adjusting mechanism 5. In the embodiment, the predetermined transmission structure is the input transmission structure 42a closest to the output transmission structure 44b connected with the adjusting mechanism 5, and the adjusting mechanism 5 is connected with the input inner ring 422.

[0076] When the second input inner ring 422b is in the first position under the action of the pushing piece 512 of the adjusting mechanism 5, as shown in FIG. 4B, the second input inner ring 422b is separated from the mounting shell 41, and the input transmission structure 42a is connected with the adjusting mechanism 5, so as to drive the adjusting mechanism 5 to rotate. Figure 5 ​​As shown, the second inner ring 422b is in engagement with the inner wall of the mounting shell 41 and is in a static state, at this time the speed of the mounting assembly 3 driven by the transmission assembly 42 is V1, the second input planetary set 421b participates in deceleration, the transmission ratio of the transmission assembly 42 is i = i1*i2*i3.

[0077] As shown, when the second input inner ring 422b is in the second position under the action of the pusher 512 of the adjusting mechanism 5, Figure 6 As shown, the second inner ring 422b is disengaged from the inner wall of the mounting shell 41, and the second inner ring 422b rotates synchronously with the second input planetary set 421b, at this time the speed of the mounting assembly 3 driven by the transmission assembly 42 is V2, the second input planetary set 421b does not participate in deceleration, and the transmission ratio of the transmission assembly 42 is i = i1*i3.

[0078] Wherein, i1 is the transmission ratio of the first group of input transmission structure 42a, i2 is the transmission ratio of the second group of input transmission structure 42a, and i3 is the transmission ratio of the output transmission structure 44b.

[0079] The engagement mode of the mounting shell 41 with the predetermined transmission structure can be set as needed, for the convenience of understanding, taking the input inner ring 422 as an example, Figure 4 As shown, the outer peripheral wall of the input inner ring 422 is provided with a plurality of clamping grooves 4221 spaced along the circumference of the input inner ring 422, and the mounting shell 41 is provided with a plurality of clamping protrusions 414, when the input inner ring 422 is in the first position, one clamping protrusion 414 is located in one clamping groove 4221. Of course, the outer peripheral wall of the input inner ring 422 can also be provided with a plurality of clamping protrusions 414, and the mounting shell 41 can be provided with a plurality of clamping grooves 4221 matched with the clamping protrusions 414, which can be set as needed.

[0080] In some embodiments, as shown in Figure 2 The adjusting mechanism 5 includes an adjusting assembly 51 and a driving assembly 52, the adjusting assembly 51 is arranged in the mounting shell 41, and the driving assembly 52 is arranged in the shell 2 and connected with the adjusting assembly 51, and the driving assembly 51 is configured to drive the adjusting assembly 51 to adjust the transmission assembly 42, so as to adjust the rotating speed of the mounting assembly 3.

[0081] In some embodiments, as shown in Figure 2 The driving assembly 52 can drive the adjusting assembly to rotate relative to the mounting shell 41, and the adjusting assembly 51 is configured to adjust the rotating speed of the mounting assembly 3 driven by the transmission assembly 42 when driven by the driving assembly 52. The mounting shell 41 is provided with a through opening 402 communicating with the mounting cavity 401, and the through opening 402 is configured to extend along the direction of the rotating axis of the mounting assembly 3.

[0082] As shown in Figure 2 And Figure 7As shown, the adjusting assembly 51 comprises a conversion piece 511 and a pushing piece 512. The conversion piece 511 is arranged between the mounting shell 41 and the driving assembly 52. The conversion piece 511 is provided with a guide opening 5111 arranged along a preset track, and the guide opening 5111 is in communication with the through opening 402. One end of the pushing piece 512 passes through the through opening 402 and is connected to the transmission assembly 42. The other end of the pushing piece 512 is arranged in the guide opening 5111. The driving assembly 52 is configured to drive the conversion piece 511 to rotate with the driving assembly 52, so as to drive the pushing piece 512 to move along the through opening 402 and the guide opening 5111, so as to adjust the transmission assembly 42 of the driving mechanism 4, thereby adjusting the rotating speed of the mounting assembly 3.

[0083] In the embodiment, as shown in Figure 5 , the pushing piece 512 is connected to the second inner ring gear 422b.

[0084] When the driving assembly 52 acts, under the action of the guide opening 5111 of the conversion piece 511, the pushing piece 512 will move along the through opening 402 to drive the second inner ring gear 422b to move. When the second inner ring gear 422b is in the first position under the pushing of the pushing piece 512, the second inner ring gear 422b is clamped with the mounting shell 41, and at this time, the second inner ring gear 422b is stationary relative to the mounting shell 41. When the second inner ring gear 422b is in the second position under the pushing of the pushing piece 512, the second inner ring gear 422b is unclamped with the mounting shell 41, and the second inner ring gear 422b is rotated relative to the mounting shell 41 to adjust the transmission ratio of the transmission assembly 42, thereby adjusting the rotating speed of the mounting assembly 3.

[0085] The shape of the conversion piece 511 can be a circular arc curved sheet body, or can be other shapes, which can be set as needed. In the embodiment, the shape of the conversion piece 511 is a circular arc curved sheet body. The connection mode of the pushing piece 512 and the second inner ring gear 422b can be clamping, and of course can be other connection modes.

[0086] In some embodiments, the pushing piece 512 and the second inner ring gear 422b are connected by clamping. Specifically, as shown in Figure 2 , Figure 4 and Figure 7 , the outer surface of the second inner ring gear 422b is provided with a ring groove 4222, one end of the pushing piece 512 passes through the through opening 402 and is inserted into the ring groove 4222, and the other end of the pushing piece 512 is arranged in the guide opening 5111. In this way, when the conversion piece 511 rotates under the action of the driving assembly 52, the pushing piece 512 located in the guide opening 5111 will drive the second inner ring gear 422b to move, thereby switching the position of the second inner ring gear 422b, so as to adjust the transmission ratio of the transmission assembly 42 and adjust the rotating speed of the mounting assembly 3 driven by the transmission assembly 42.

[0087] It is worth mentioning that, in some embodiments, as shown in Figure 7 and Figure 8 , the driving assembly 52 includes a power member 521 and a driving gear 522, the conversion member 511 is provided with a rack 5112, the driving gear 522 is engaged with the rack 5112, and the power member 521 is configured to drive the driving gear 522 to rotate, so as to rotate the conversion member 511.

[0088] It is worth mentioning that the rack 5112 is arranged along the circumference of the conversion member 511, so that when the power member 521 drives the driving gear 522 to rotate, the driving gear 522 rotates the conversion member 511 through the rack 5112.

[0089] It is worth mentioning that the power member 521 can be a motor or other, as long as it can provide power to the driving gear 522.

[0090] It is worth mentioning that, in some embodiments, the driving assembly 52 further includes a torsion spring 523, one torsion arm of the torsion spring 523 is connected with the output end of the power member 521, and the other torsion arm of the torsion spring 523 is connected with the driving gear 522. Through the arrangement of the torsion spring 523, the torsion spring 523 provides continuous torsion to the driving gear 522. When the driving gear 522 drives the conversion member 511 to rotate, there is a time when the driving gear 522 does not enter the design position, at this time the torsion spring 523 provides continuous torsion to the driving gear 522, and when the power member 521 acts, it is convenient for the driving gear 522 to rotate into the design position.

[0091] It can be understood that, in some embodiments, the driving assembly 52 can also not include the torsion spring 523, and the function of the driving assembly 52 can also be realized, that is, it is configured to drive the conversion member 511 to rotate, so as to drive the pushing member 512 to move along the through opening 402 and the guide opening 5111, so as to adjust the transmission assembly 42 of the driving mechanism 4, thereby adjusting the rotation speed of the installation assembly 3.

[0092] It is worth mentioning that, in some embodiments, the driving assembly 52 further includes a gear box 524, which is located between the power member 521 and the driving gear 522.

[0093] It is worth mentioning that, in some embodiments, as shown in Figure 8 , the power tool 1 further includes a sensor 6 and two magnets 7, one of the installation shell 41 and the conversion member 511 is provided with the sensor 6, and the other is provided with the two magnets 7 at intervals, the sensor 6 is used to detect the position of the conversion member 511 through the magnets 7 when the conversion member 511 rotates; the sensor 6 is connected with the control panel 21 provided on the shell 2 (as Figure 9As shown in FIG. 1, the electric tool 1 further comprises a display screen 8 and a first button 9 arranged on the display screen 8, the display screen 8 is arranged on the rear end or side of the shell 2, the first button 9 is connected with the control board 21, and the first button 9 is configured to control the driving assembly 52 through the control board 21, so as to control the driving assembly 52 to drive the adjusting assembly 51 through the first button 9, so as to adjust the transmission assembly 42, and further adjust the rotating speed of the mounting assembly 3.

[0094] It is worth noting that in some embodiments, the sensor 6 is a Hall sensor.

[0095] It is worth noting that in some embodiments, as shown in FIG. 1, the electric tool 1 further comprises a display screen 8 and a first button 9 arranged on the display screen 8, the display screen 8 is arranged on the rear end or side of the shell 2, the first button 9 is connected with the control board 21, and the first button 9 is configured to control the driving assembly 52 through the control board 21, so as to control the driving assembly 52 to drive the adjusting assembly 51 through the first button 9, so as to adjust the transmission assembly 42, and further adjust the rotating speed of the mounting assembly 3. Figure 9 It is worth noting that in some embodiments, as shown in FIG. 1, the electric tool 1 further comprises a display screen 8 and a first button 9 arranged on the display screen 8, the display screen 8 is arranged on the rear end or side of the shell 2, the first button 9 is connected with the control board 21, and the first button 9 is configured to control the driving assembly 52 through the control board 21, so as to control the driving assembly 52 to drive the adjusting assembly 51 through the first button 9, so as to adjust the transmission assembly 42, and further adjust the rotating speed of the mounting assembly 3.

[0096] Figure 1 It is worth noting that in some embodiments, as shown in FIG. 1, the electric tool 1 further comprises a display screen 8 and a first button 9 arranged on the display screen 8, the display screen 8 is arranged on the rear end or side of the shell 2, the first button 9 is connected with the control board 21, and the first button 9 is configured to control the driving assembly 52 through the control board 21, so as to control the driving assembly 52 to drive the adjusting assembly 51 through the first button 9, so as to adjust the transmission assembly 42, and further adjust the rotating speed of the mounting assembly 3. 2 It is worth noting that in some embodiments, as shown in FIG. 1, the electric tool 1 further comprises a display screen 8 and a first button 9 arranged on the display screen 8, the display screen 8 is arranged on the rear end or side of the shell 2, the first button 9 is connected with the control board 21, and the first button 9 is configured to control the driving assembly 52 through the control board 21, so as to control the driving assembly 52 to drive the adjusting assembly 51 through the first button 9, so as to adjust the transmission assembly 42, and further adjust the rotating speed of the mounting assembly 3.

[0097] It is worth noting that in some embodiments, as shown in FIG. 1, the electric tool 1 further comprises a display screen 8 and a first button 9 arranged on the display screen 8, the display screen 8 is arranged on the rear end or side of the shell 2, the first button 9 is connected with the control board 21, and the first button 9 is configured to control the driving assembly 52 through the control board 21, so as to control the driving assembly 52 to drive the adjusting assembly 51 through the first button 9, so as to adjust the transmission assembly 42, and further adjust the rotating speed of the mounting assembly 3.

[0098] Figure 2 It is worth noting that in some embodiments, as shown in FIG. 1, the electric tool 1 further comprises a display screen 8 and a first button 9 arranged on the display screen 8, the display screen 8 is arranged on the rear end or side of the shell 2, the first button 9 is connected with the control board 21, and the first button 9 is configured to control the driving assembly 52 through the control board 21, so as to control the driving assembly 52 to drive the adjusting assembly 51 through the first button 9, so as to adjust the transmission assembly 42, and further adjust the rotating speed of the mounting assembly 3.

[0099] It is worth noting that in some embodiments, as shown in FIG. 1, the electric tool 1 further comprises a display screen 8 and a first button 9 arranged on the display screen 8, the display screen 8 is arranged on the rear end or side of the shell 2, the first button 9 is connected with the control board 21, and the first button 9 is configured to control the driving assembly 52 through the control board 21, so as to control the driving assembly 52 to drive the adjusting assembly 51 through the first button 9, so as to adjust the transmission assembly 42, and further adjust the rotating speed of the mounting assembly 3. Figure 2 It is worth noting that in some embodiments, as shown in FIG. 1, the electric tool 1 further comprises a display screen 8 and a first button 9 arranged on the display screen 8, the display screen 8 is arranged on the rear end or side of the shell 2, the first button 9 is connected with the control board 21, and the first button 9 is configured to control the driving assembly 52 through the control board 21, so as to control the driving assembly 52 to drive the adjusting assembly 51 through the first button 9, so as to adjust the transmission assembly 42, and further adjust the rotating speed of the mounting assembly 3.

[0100] It is worth noting that in some embodiments, as shown in FIG. 1, the electric tool 1 further comprises a display screen 8 and a first button 9 arranged on the display screen 8, the display screen 8 is arranged on the rear end or side of the shell 2, the first button 9 is connected with the control board 21, and the first button 9 is configured to control the driving assembly 52 through the control board 21, so as to control the driving assembly 52 to drive the adjusting assembly 51 through the first button 9, so as to adjust the transmission assembly 42, and further adjust the rotating speed of the mounting assembly 3.

[0101] It is worth noting that in some embodiments, as shown in FIG. 1, the electric tool 1 further comprises a display screen 8 and a first button 9 arranged on the display screen 8, the display screen 8 is arranged on the rear end or side of the shell 2, the first button 9 is connected with the control board 21, and the first button 9 is configured to control the driving assembly 52 through the control board 21, so as to control the driving assembly 52 to drive the adjusting assembly 51 through the first button 9, so as to adjust the transmission assembly 42, and further adjust the rotating speed of the mounting assembly 3.

[0102] Figure 2 ​​​As shown, the power tool 1 further comprises a lighting assembly 13 arranged on the housing 2, which is used to illuminate the front of the mounting assembly 3, and is suitable for use in some light deficient working environment.

[0103] In some embodiments, as shown, Figure 9 As shown, the power tool 1 further comprises a power adjusting assembly 14 electrically connected with the control board 21, which is used to adjust the power of the rotation of the driving member 43. In the present embodiment, the power adjusting assembly 14 comprises a potentiometer 141 arranged on the control board 21, a rear end cover 142 rotatably connected with the housing 2, and a transition gear 143, wherein the rear end cover 142 is provided with an inner tooth 1421, and the transition gear 143 is engaged with the inner tooth 1421. The transition gear 143 corresponds to the potentiometer 141. In this way, when the rear end cover 142 is screwed, the transition gear 143 rotates, and the potentiometer 141 senses the change of the rotation position of the transition gear 143, thereby linking the control board 21 to adjust the power of the rotation of the driving member 43, which is conducive to selecting the power of the power tool 1 as needed.

[0104] In use of the power tool, the working accessory to be mounted can be inserted into the clamping member 32. Then the rotation speed of the driving member 43 can be adjusted by screwing the rear end cover 142. When the working accessory is required to provide low rotation speed and high torque, the first button 9 is operated to make the driving assembly 52 drive the conversion member 511 to make the pushing member 512 push the second inner tooth ring 422b to the first working position. When the working accessory is required to provide high rotation speed and low torque, the driving assembly 52 is operated and the pushing member 512 pushes the second inner tooth ring 422b to the second working position. After the driving mechanism 4 is adjusted by the adjusting mechanism 5, the second button 12 is pressed to start the driving member 43, which drives the mounting assembly 3 to rotate under the transmission of the transmission assembly 42, thereby making the working accessory rotate.

[0105] The electric tool 1 provided by the embodiment of the utility model, comprising casing 2, installation component 3, drive component and adjusting component 51, installation component 3 is used for clamping work attachment;Drive mechanism 4 includes installation shell 41, drive piece 43 and transmission assembly 42, installation shell 41 is equipped with installation cavity 401, transmission assembly 42 is located in installation cavity 401, drive piece 43 is installed in casing 2, and the output end of drive piece 43 is connected with transmission assembly 42, the end of transmission assembly 42 deviating from casing 2 is connected with installation component 3, transmission assembly 42 is configured to drive installation component 3 to rotate under the drive of drive piece 43;Adjusting mechanism 5 includes adjusting component 51 and drive component 52, adjusting component 51 is located in installation shell 41, drive component 52 is arranged in casing 2 and is connected with adjusting component 51, drive component 52 is configured as drive adjusting component 51 adjusts transmission assembly 42, to adjust the rotating speed of installation component 3.The electric tool 1 with the above structure can drive adjusting component 51 to adjust the rotating speed of installation component 3 by making drive component 52 move when using, and then change the rotating speed of work attachment installed on clamping component, to meet the rotating speed requirement of different scenes, which is beneficial to improve user experience and is convenient to use.

[0106] The electric drill provided by another embodiment of the utility model includes the electric tool 1 and work attachment in the above embodiment, and the work attachment is a drill bit.The drill bit is detachably inserted into the installation component 3.

[0107] The above is only the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion using the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A power tool characterized by comprising: The electric tool comprises a housing, a mounting assembly for clamping a working accessory, a driving mechanism, a regulating mechanism, and a hand-held shell. The driving mechanism comprises a mounting shell, a driving member and a transmission assembly. The mounting shell is arranged in the housing and is provided with a mounting cavity. The transmission assembly is arranged in the mounting cavity. The driving member is arranged in the housing and is connected with the transmission assembly. The transmission assembly is configured to rotate the mounting assembly under the driving of the driving member. The regulating mechanism comprises a regulating assembly and a driving assembly.

2. The power tool of claim 1, wherein, The regulating assembly is arranged in the mounting shell. The driving assembly is arranged in the housing and is connected with the regulating assembly.

3. The power tool of claim 2, wherein, The driving assembly is configured to drive the regulating assembly to regulate the transmission assembly so as to regulate the rotating speed of the mounting assembly.

4. The power tool of claim 2, wherein, The mounting shell is provided with a through hole which is communicated with the mounting cavity and is configured to extend along the rotating axis of the mounting assembly.

5. The power tool of claim 4, wherein, The regulating assembly comprises a conversion member and a pushing member.

6. The power tool of claim 4, wherein, The conversion member is arranged between the mounting shell and the driving assembly.

7. The power tool of any one of claims 1-6, wherein, The conversion member is provided with a guide opening arranged along a preset track. The guide opening is communicated with the through hole. One end of the pushing member passes through the through hole and is connected with the transmission assembly. The other end of the pushing member is arranged in the guide opening. The driving assembly is configured to drive the conversion member to rotate so as to drive the pushing member to move along the through hole and the guide opening. The pushing member adjusts the transmission assembly so as to regulate the rotating speed of the mounting assembly. The electric tool further comprises a sensor and two magnets. One of the mounting shell and the conversion member is provided with the sensor. The other one is provided with the two magnets. When the conversion member rotates, the sensor is used to detect the position of the conversion member through the magnets. The sensor is connected with a control board. The driving assembly is connected with the control board. The control board is used to control the driving assembly to start or stop driving the conversion member to rotate according to the position of the conversion member detected by the sensor. The electric tool further comprises a display screen and a first button arranged on the display screen. The display screen is arranged at the rear end or the side of the housing. The first button is connected with the control board. The first button is configured to control the driving assembly through the control board. The electric tool further comprises a hand-held shell which is communicated with the housing. The electric tool further comprises a display member arranged in the hand-held shell and a second button arranged on the display member. The second button and the driving member are both connected with the control board. The second button is used to drive the driving member through the control board. The hand-held shell is provided with a charging port. A power mechanism is arranged in the hand-held shell. The charging port is connected with the power mechanism. The driving assembly comprises a power member and a driving gear. The conversion member is provided with a rack. The driving gear is engaged with the rack. The power member is configured to drive the driving gear to rotate so as to drive the conversion member to rotate.

8. The power tool of any one of claims 1-6, wherein, The transmission assembly comprises an output transmission structure and at least one set of input transmission structures, one end of the input transmission structure is connected with the driving member, the other end of the input transmission structure is connected with the output transmission structure, the output transmission structure is connected with the mounting assembly, the output transmission structure or the input transmission structure is connected with the pushing member, and the output transmission structure or the input transmission structure connected with the pushing member is defined as a predetermined transmission structure; When the predetermined transmission structure is in the first position under the pushing of the pushing member, the predetermined transmission structure is clamped with the mounting shell, and the speed of the transmission assembly driving the mounting assembly is V1; when the predetermined transmission structure is in the second position under the pushing of the pushing member, the predetermined transmission structure is unclamped with the mounting shell, and the speed of the transmission assembly driving the mounting assembly is V2, satisfying V2>V1.

9. The power tool of claim 8, wherein, The number of the input transmission structures is two sets, the two sets of input transmission structures are arranged adjacent to and connected with each other, each set of input transmission structures comprises an input planetary set and an input inner ring gear connected with each other, the input inner ring gear is arranged in the mounting cavity and surrounds the input planetary set, and the input planetary set is connected with the output end of the driving member, The output transmission structure comprises an output planetary set and an output inner ring gear connected with each other, the output inner ring gear is arranged in the mounting cavity and surrounds the output planetary set, the output inner ring gear is fixed in the mounting shell and connected with the input planetary set, and the output planetary set is connected with the mounting assembly; The predetermined transmission structure is the input transmission structure closest to the output transmission structure, the pushing member is connected with the input inner ring gear, when the input inner ring gear is in the first position under the pushing of the pushing member, the input inner ring gear is clamped with the inner wall of the mounting shell and is in a static state; when the input inner ring gear is in the second position under the pushing of the pushing member, the input inner ring gear is unclamped with the inner wall of the mounting shell, and the input inner ring gear rotates synchronously with the input planetary set.

10. The power tool of claim 9, wherein, The outer peripheral wall of the input inner ring gear is provided with a plurality of clamping grooves distributed along the circumference of the input inner ring gear, and the mounting shell is provided with a plurality of clamping protrusions, when the input inner ring gear is in the first position, one clamping protrusion is located in one clamping groove.

11. An electric drill, characterized in that The electric tool comprises the electric tool and the working accessory, and the working accessory is a drill bit.

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