CN207256163U - driver - Google Patents

Abstract

A kind of driver of disclosure, with the output shaft positioned at front end, the driver includes the housing extended in the longitudinal direction and the retainer component being arranged in the housing, the retainer component includes retainer, the cylindrical battery for being mounted on the retainer rear portion and elongated circuit board and the motor and train of reduction gears that are mounted on the retainer front portion, the battery of the cylindricality and elongated circuit board and at least partially overlaps in the longitudinal direction.By the design of the interior layout and retainer component of housing, make driver compacter and minimize.

Description

Driver

Entitled " the staight shank driver " proposed this application claims on December 30th, 2016 to China State Intellectual Property Office 201621474596.X patent applications domestic priority.

Technical field

This application involves electric tool, more particularly to a kind of driver.

Background technology

Electric screw driver machine is that have a kind of longer history also the most basic electric tool.In recent years, with ever-increasing Function, such as moment of torsion control, power management, bring more complicated higher volume of board design, in addition many parts axis Limited to the structure of superposition, challenge is brought for the Miniaturization Design of electric tool.Simultaneously as part is more and dissipates, it is general straight Handle driver often has the two panels housing being separated in half, and is bolted housing, holding parts and then completes assembling.But It is to be so designed that needs are preforming on housing to have bolt hole, considers for itself hole thickness and resigning built-in component etc., and Another reason for restricting electric screw driver machine volume compact and miniaturization.

Therefore, it is necessary to a kind of electric tool design of compact is provided, to overcome technology existing in the prior art to ask Topic.

Utility model content

The compact sex chromosome mosaicism of the application mainly driver to be solved.

In order to solve the above technical problems, the application provides a kind of driver, there is the output shaft positioned at front end, the bottle opener Machine includes the housing extended in the longitudinal direction and the retainer component being arranged in the housing, the retainer component bag Include retainer, the cylindrical battery for being mounted on the retainer rear portion and elongated circuit board and be mounted on the retainer front portion Motor and train of reduction gears, the battery of the cylindricality and elongated circuit board at least partially overlap in the longitudinal direction.

Further, the retainer includes base portion and the rear retainer extended rearwardly to form from base portion, is protected after described Holding frame has the battery container portion and circuit board resettlement section opened up parallel to output shaft.

Further, the retainer further includes the preceding retainer extended to form forward from base portion, the motor and deceleration Gear set is mounted in the preceding retainer in which can move forward and backward.

Further, the housing is cylindrical in shape and including open front and after-opening, and the driver, which further includes, is assembled in institute The rear cover of after-opening is stated, the rear cover is totally domed, including the middle part of ora terminalis matched with the after-opening and protrusion, institute State driver and further include torque knob on the transitional surface between the ora terminalis and protrusion.

Further, the rear end of the housing is square or class is square, the circuit board be roughly parallel to it is described square or A square side of person's class.

Further, the driver, which further includes, is flexibly preset in the motor away from base portion one end and outside being subject to To the preexisting component close to one lateral movement of base portion when power presses.

Further, the retainer component, which further includes, is electrically connected battery, circuit board and the motor to form work The connecting component of circuit.

Further, the driver is staight shank driver, and the housing is cylindrical in shape, and is that integral molded plastic is molded and front and rear Penetrated through on direction.

Further, the battery of the cylindricality and elongated circuit board be parallel to the output shaft and in the longitudinal direction At least partially overlap, the cored wire of the cylindrical battery and the output shaft are misaligned.

Further, the retainer component can be plugged in the housing of the tubular along the anteroposterior direction.

According to the application, by the design of the interior layout and retainer component of housing, make driver compacter and Miniaturization.

Brief description of the drawings

The detailed description of detailed description below is referred to reference to attached drawing, the application will be more fully appreciated.Wherein：

Fig. 1 shows the dimensional structure diagram of the application driver；

Fig. 2 shows schematic cross-sectional view of the driver along A-A directions in Fig. 1；

Fig. 3 shows decomposition texture schematic diagram of the application driver under Fig. 2 section view states；

Fig. 4 shows the decomposition texture schematic diagram of driver in Fig. 1；

Fig. 5 shows the decomposition texture schematic diagram before the assembling of retainer component and housing in Fig. 4；

Fig. 6 shows the decomposition texture schematic diagram of another angle of driver in Fig. 1.

Embodiment

The embodiment of the application is described in detail below in conjunction with the accompanying drawings.In different drawings, it is the same or similar Component is presented with like reference characters.It should be appreciated that attached drawing is only used for illustrating the application at the same time, wherein the ruler of component Very little, proportionate relationship and the number of component are not as the limitation to the application.Furthermore, it is necessary to predeclared be, the application In so-called " preceding ", " front end " refer to that electric tool is axial close to one end of object to be operated, " rear ", " rear end " refer to electronic work Tool is axially away from one end in object to be processed.

Please refer to Fig.1 to shown in Fig. 6, and emphasis refers to Fig. 3 and Fig. 4, the electric tool that the application specific embodiment provides For a kind of driver of staight shank, including the housing 100 of tubular and the retainer component 200 that is assembled in the housing 100 of tubular.Institute Stating retainer component 200 includes retainer 2, driving part 3 and execution unit 4.In the present embodiment, the retainer 2 uses Integrated injection molding, has base portion 21, the rear retainer 22 extended rearwardly to form from base portion 21 and extends forward from base portion 21 The preceding retainer 23 formed.The driving part 3 be mounted on it is described after retainer 22, the execution unit 4 be mounted on it is described before Retainer 23 simultaneously have forward extend and positioned at staight shank driver front end output shaft 401, the output shaft 401 substantially with staight shank The geometry axle center of driver overlaps.The driving part 3 refers to the component that power supply and Circuit management are provided for electric tool, at this Embodiment includes battery 31 and circuit board 32, specially the battery of cylindricality and elongated circuit board, 31 He of cylindrical battery Rectangular circuit board 32 is parallel to the output shaft 401 and at least partially overlaps in the longitudinal direction, the cylindrical battery 31 Cored wire and the output shaft 401 it is misaligned, the output shaft 401 is not also in 32 plate face of circuit board；Here cored wire Axis where referring to the carbon electrode rod of cylindrical battery, if battery is cylinder, axis weight of the cored wire substantially with cylinder Close；The execution unit 4 refers to the component for performing movement and torque output, includes the motor 41 being coaxially disposed in the present embodiment With train of reduction gears 42.The train of reduction gears 42 is coated by gear-box 421 and is press-fitted in one with motor 41.The motor 41 Rearmost end positioned at the execution unit 4 and outside diameter with compared with 421 bigger of gear-box, the gear-box 421 has front end face 422 and stretched out from the front end face 422 and positioned at the tubular 100 front end of housing the output shaft 401, the output Also having screwdriver bit maintaining part (not indicating) on axis 401, corresponding screwdriver bit is (not shown) to be completed to operate to be adapted to.

The driving part 3, execution unit 4 are mounted on the retainer 2 and form the shell that can be modularly flush-mounted in tubular Retainer component 200 in body 100.Execution unit 4 in the retainer component 200 be mounted on can moving forward and backward it is described before In retainer 23, the driving part 3 is then regularly mounted on the rear retainer 22.Certain retainer component 200 Further include and be electrically connected the driving part 3 and execution unit 4 to form at least part connecting component of operating circuit, such as this The retainer component 200 of embodiment then includes at least the battery 31, circuit board 32 and motor 41 or all or part of company Wiring, extra controlling switch or breakpoint for needing to wait whole electric screw driver machine electrically to close after being completed etc., For clearly disclosing integrally-built consideration, connecting component not shown in attached drawing.It is described that driving part 3 and execution unit 4 exist The design that retainer 2 forms retainer component 200 is assembled to before being embedded in jointly, driving part 3 is realized using retainer 2 and holds The modularization of row component 4, reduces the design redundancy that fixed and fit structure is brought so that driver it is overall compacter and Miniaturization.

Fig. 2 and Fig. 3 is referred to please continue to refer to attached drawing and emphasis, the motor 41 is mounted on the preceding holding at least in part Frame 23 can simultaneously move on anteroposterior direction (that is, direction of output shaft 401), and the rear retainer 22 is opened equipped with anteroposterior direction If the battery container portion 221 and circuit board resettlement section 222 in (that is, parallel to direction of output shaft 401), the battery 31 and electricity Road plate 32 is housed and is immobilizated in the battery container portion 221 and circuit board resettlement section 222 respectively.In addition, institute in the present embodiment The eccentric setting of the battery 31 shown and motor 41, the design space of bigger is provided for circuit board 32, moreover, circuit board 32 and institute State the parallel design of anteroposterior direction so that add ons such as charge port 321 on circuit board (are to be assembled in circuit in the present embodiment The Micro USB plug receptacles of plate rear end, have and direction and are attached at the peace of circuit board 32 parallel to patching for 32 plate face of circuit board Dress face), electric clutch 322 (electronically adjusts the torque maximum of driver, also has and be attached at the installation of circuit board 32 Face, the concrete form of electric clutch described in the present embodiment is dish type torque knob) etc., can have big erection space into And it can with high intensity be distributed in the lateral surface or rear end face of the housing 100 of tubular.

The housing 100 of the tubular be integral molded plastic be molded and penetrate through in the longitudinal direction, have barrel bore 111 and The axially open communicated with the barrel bore 111, the axially open specifically includes open front 112 and after-opening 113, described The housing 100 of tubular further includes the protecgulum 12 for being assembled in the open front 112 and the rear cover 13 for being assembled in the after-opening 113, The rear cover 13 is overall domed, including with the 113 matched ora terminalis of after-opening and the middle part of protrusion, the output shaft 401 in 32 plane of circuit board, and the torque knob so may be used on the transitional surface between the ora terminalis and protrusion Torque knob is exposed to rear cover 13 naturally using curved transitional surface.Before the entirety of housing 100 of the tubular is slightly in Big shape after small, and the choke 114 easy to grip is equipped with stage casing position to the front, the choke 114 corresponds to barrel bore 111 position is equipped with stop section 115, and the stop section 115 is specially the stop block of the stop ring or segmentation closed.The cylinder The rear end of the housing 100 of shape is square or class is square, and the circuit board 32 is roughly parallel to described square or square class one A side, can so obtain the circuit-board laying-out of utilization rate higher.The barrel bore 111 is also extended with anteroposterior direction Guiding parts 14,2 periphery of retainer be equipped with the guiding parts 14 coordinate guide channel 24.The retainer component 200 load barrel bore 111 and in the preceding retainer 23 from the axially open (being specially after-opening 113 in the present embodiment) Stop when front end is against 115 rear side of stop section, the gear-box 42 continues to extend forward through the stop section 115, also I.e. described retainer component 200 can be plugged in the housing 100 of tubular along the anteroposterior direction.

The electric screw driver machine is further included flexibly is preset in the pre- of remote 3 one end of driving part by the execution unit 4 Component 5 is put, the preexisting component 5 includes from the open front 112 being fitted into and being sheathed on the execution unit 4 (in the present embodiment Specially gear-box 421) periphery spring 51.51 rear end of spring is resisted against the front side of the stop section 115, front end then against In the side plate 52 that one is extended from execution unit 4.In the present embodiment, the side plate 52 is annular in shape, and the output shaft 401 passes through Side plate 52 simultaneously continues to forward extend out, and the side plate 52 is fixed on gear-box by some fastener holes 424 opened up on front end face 422 42.The periphery (being specially the periphery of motor 41 in the present embodiment) of the execution unit 4 offers and retainer 2 or tubular Housing 100 coordinates to realize circumferential spacing anti-transfer part 423, to carry out circumferential limit to motor stator and its affixed execution unit Position and anti-rotation.The driving part 3 further includes a starting switch 34, is specially flat pressure sensitive switch in the present embodiment, institute State base portion 21 and the switch resettlement section 211 for placing the starting switch 34 is recessed with towards front end side.4 normality of execution unit It is resiliently retained in the position for not triggering the starting switch 34 and 34 quilt of starting switch can be driven when being subject to external force Triggering.The flat starting switch 34 perpendicular to posture in the front-back direction to be placed in the switch resettlement section 211, the electricity Dynamic driver further includes one and is arranged on 4 rear end of execution unit, is specially the rear end of the motor 41, and is located at the flat Starting switch 34 presses the switch press portion 43 in region.The pre- elastic force provided based on the spring 51 so that execution unit 4 exists The position of starting switch 34 (that is, base portion 21 away from retainer 2) is kept away from during off working state, and in the housing of tubular 100 be held and to object to be processed apply external force when, execution unit 4 overcomes the elastic force of spring 51 so that the switch is pressed 43 started by press of splenium switch 34, driving part 3 start to supply electricity to execution unit 4, drive screwdriver bit maintaining part to rotate.According to startup Switch 34 is changed be subject to external force size, and driving part 3 handles and feed back different output torques to execution unit 4, to meet The operating habit of user.

The protecgulum 12 engages after spring 51 and side plate 52 load barrel bore 111 and are fixed to the execution unit 4 To the open front 112 of the housing 100 of the tubular, the screwdriver bit maintaining part stretches out protecgulum 12；The rear cover 13 is in retainer group Part 200 is fastened on the housing 100 of the tubular after loading barrel bore 111 using nut (not shown), specifically, this implementation On the guiding parts 14 for the housing 100 that the nut bore 141 of example is arranged on tubular, existing structure can be made full use of.It is described Retainer component 200 further includes the reversing switch 35 that is integrated on the circuit board 32 and can be slid along the anteroposterior direction, institute State reversing switch 35 to participate in forming the operating circuit, offered on the lateral wall of the housing 100 of the tubular described in can driving The operation portion 351 of reversing switch 35.After the rear cover 13 is assembled in the housing 100, the retainer component 200 is limited in It is contained between the stop section 11 and rear cover 13 and completely inside the housing 100 of tubular.It is also, described to be assembled in after-opening Overall 113 rear cover 13 is in central raised arch, and the 32 rear end group of circuit board is equipped with parallel to plate face and is revealed in described The electric clutch 322 of arch rear cover 13, the electric clutch 322 specifically provide one and are revealed in the arch rear cover 13 to stir the dish type torque knob of adjusting.Since the output shaft 401 is not in 32 plane of circuit board, the torque knob Not arch rear cover 13 it is central raised on, thus torque knob can be exposed to the arch rear cover 13 fillet surface on. The charge port 321 is not revealed in the arch rear cover 13 projectedly, and the charge port 321 is parallel to circuit board 32.

To sum up, the main contents of the application are briefly summarized：A kind of driver, has the output shaft 401 positioned at front end, The driver includes the housing 100 extended in the longitudinal direction and the retainer component being arranged in the housing 100 200, it is characterised in that the retainer component 200 includes retainer 2, is mounted on the cylindrical battery 31 at 2 rear portion of retainer With elongated circuit board 32 and be mounted on the anterior motor 41 of the retainer 2 and train of reduction gears 42, the battery of the cylindricality 31 and elongated circuit board 32 at least partially overlapped on the anteroposterior direction.The retainer 2 is including base portion 21 and certainly There is the battery opened up parallel to output shaft 401 to receive for the rear retainer 22 that base portion 21 extends rearwardly to form, the rear retainer 22 Appearance portion 221 and circuit board resettlement section 222.The retainer 2 further includes the preceding retainer 23 extended to form forward from base portion 21, institute State motor 41 and train of reduction gears 42 is mounted in the preceding retainer 23 in which can move forward and backward.The housing 100 is cylindrical in shape simultaneously Including open front 112 and after-opening 113, the driver further includes the rear cover 13 for being assembled in the after-opening 113, the rear cover 13 is overall domed, including further includes exposure with the 113 matched ora terminalis of after-opening and the middle part of protrusion, the driver The torque knob on transitional surface between the ora terminalis and protrusion.The rear end of the housing 100 is square or class is square, institute State circuit board 32 and be roughly parallel to a described square or square class side.The driver is further included the electricity flexibly Machine 41 is preset in remote 21 one end of base portion and when being subject to pressed by external force to the preexisting component close to one lateral movement of base portion.The guarantor Hold frame component 200 and further include electric connection battery 31, circuit board 32 and the motor 41 to form the connecting component of operating circuit. The driver is staight shank driver, and the housing 100 is cylindrical in shape, and is that integral molded plastic is molded and penetrates through in the longitudinal direction.Institute Battery 31 and the elongated circuit board 32 for stating cylindricality are parallel to the output shaft 401 and at least partly heavy in the longitudinal direction Folded, the cored wire of the cylindrical battery 31 and the output shaft 401 are misaligned.The retainer component 200 can be along the front and back To the housing 100 for being plugged in the tubular.

Above embodiment is merely to illustrate the utility model content of the application, and is not the limitation to the application. For example, the housing system integral molded plastic in above-described embodiment is molded and penetrates through in the longitudinal direction, in some other embodiment, by Critical piece is constrained in retainer, housing can also be only with being simply press-fitted or be clasped；Separately Outside, train of reduction gears is coated by gear-box and is press-fitted in one with motor in above-mentioned embodiment, in some other implementation In example, the train of reduction gears can not also set gear-box or directly be built in the housing of the motor；Furthermore this reality The break-make of the operating circuit in example is applied by the way of started by press is carried out to pressure sensitive switch to realize, and in some other implementation In example, it can also select to use microswitch, or even Starting mode that toggle usually used in being typically designed can also be used to open Move；And the present embodiment is specially electric screw driver machine, still, the compact design of the application, equally can such as electric drill, It is applied in other electric tools such as electric hammer；Moreover, the position that the choke in the present embodiment corresponds to barrel bore is set There is stop section, thus the necking that its sunk structure can be utilized to bring forms block, and in some other embodiment, even do not have There is choke design, stop section can also be freely disposed as needed.To sum up, those of ordinary skill in technical field, In the case where not departing from scope of the present application, can also make a variety of changes and modification, therefore all equivalent technical solutions The category of the application is fallen within, the scope of patent protection of the application should be defined by the claims.

Claims (10)

1. a kind of driver, has the output shaft (401) positioned at front end, the driver includes the shell extended in the longitudinal direction Body (100) and the retainer component (200) being arranged in the housing (100), it is characterised in that the retainer component (200) include retainer (2), be mounted on the retainer (2) rear portion cylindrical battery (31) and elongated circuit board (32) and It is mounted on the motor (41) and train of reduction gears (42) of the retainer (2) front portion, the battery (31) of the cylindricality and elongated Circuit board (32) at least partially overlaps on the anteroposterior direction.

2. driver according to claim 1, it is characterised in that the retainer (2) includes base portion (21) and from base The rear retainer (22) that portion (21) extends rearwardly to form, the rear retainer (22) have what is opened up parallel to output shaft (401) Battery container portion (221) and circuit board resettlement section (222).

3. driver according to claim 2, it is characterised in that the retainer (2) is further included from base portion (21) forward The preceding retainer (23) extended to form, the motor (41) and train of reduction gears (42) are mounted on the preceding guarantor in which can move forward and backward Hold in frame (23).

4. driver according to any one of claim 1-3, it is characterised in that the housing (100) is cylindrical in shape and wraps Open front (112) and after-opening (113) are included, the driver further includes the rear cover (13) for being assembled in the after-opening (113), institute It is overall domed to state rear cover (13), including the middle part of ora terminalis matched with the after-opening (113) and protrusion, the driver Further include the torque knob on the transitional surface between the ora terminalis and protrusion.

5. driver according to claim 4, it is characterised in that the rear end of the housing (100) is square or class is square, The circuit board (32) is roughly parallel to a described square or square class side.

6. driver according to claim 2, it is characterised in that the driver is further included the motor flexibly (41) it is preset in remote base portion (21) one end and when being subject to pressed by external force to the preexisting component close to one lateral movement of base portion.

7. driver according to any one of claim 1-3, it is characterised in that the retainer component (200) is also wrapped Include and be electrically connected battery (31), circuit board (32) and the motor (41) to form the connecting component of operating circuit.

8. driver according to any one of claim 1-3, it is characterised in that the driver is staight shank driver, The housing (100) is cylindrical in shape, and is that integral molded plastic is molded and penetrates through in the longitudinal direction.

9. driver according to claim 8, it is characterised in that the battery (31) of the cylindricality and elongated circuit board (32) at least partially overlap parallel to the output shaft (401) and in the longitudinal direction, the core of the cylindrical battery (31) Line and the output shaft (401) are misaligned.

10. driver according to claim 8, it is characterised in that the retainer component (200) can be along the front and back To the housing (100) for being plugged in the tubular.