CN202114697U

CN202114697U - Electric nail gun

Info

Publication number: CN202114697U
Application number: CN2011201212199U
Authority: CN
Inventors: 胡继宁; 郑元
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-04-14
Filing date: 2011-04-14
Publication date: 2012-01-18
Anticipated expiration: 2021-04-14

Abstract

An electric nail gun comprises a motor and a transmission mechanism both mounted in a casing. The casing is provided with a protruded portion, a striking pin capable of reciprocating is mounted in the protruded portion, a rotary shaft linked with an output shaft of the motor via the transmission mechanism is supported by the casing, an end tooth clutch is sleeved on the rotary shaft, at least one convex hammer is arranged at the outer edge of the end face of the end tooth clutch, the end tooth clutch meshes with teeth on the front end face of an impact wheel sleeved on the rotary shaft, and the convex hammer contacts with the striking pin tangentially when the end tooth clutch rotates to a preset position along with the impact wheel. Due to the motor and the transmission mechanism which are arranged reasonably, the electric nail gun is compact in structure and capable of realizing continuously high-efficiency striking a nail.

Description

Electric Tacker

(1) technical field

The utility model relates to a kind of ailing machine, and especially a kind of Electric Tacker belongs to the electric tool technical field.

(2) background technology

Ailing machine is a kind of hand-held tool commonly used, and it is of a great variety.Generally can be divided into pneumatic and electronic two big types.Wherein, gas pin gun must have compressed air source, therefore uses limited.The basic structure of Electric Tacker can reduce: the motor that is placed in the rifle body is connected with the nail hitting pin that is placed in rifle head place through rotating a straight line motion work, thereby can under switch control, convert electrical energy into reciprocating mechanical energy.

The patent No. is that the United States Patent (USP) of US6431430 and pct international patent application that publication number is W02006/008546 all disclose with slider-crank mechanism as rotation one straight line motion work and with the Electric Tacker of battery as power supply.The problem one that this type of ailing machine exists is that slider-crank mechanism can not be realized impacting truly, come down to a kind of " pushing away " nailing machine structure, so operating efficiency is not high.

Number of patent application is that 200410088827.9 one Chinese patent application discloses and a kind ofly converts the motor rotation active force of compression spring into earlier through pinion and rack, relends and helps tripping mechanism to discharge the compression spring, thereby produce the ailing machine of impulsive force.Though this ailing machine utilizes spring energy-storage, realized the moment of nail is impacted, can only click one by one, can't impact continuously, the therefore long-term operating efficiency of using is still not high.

(3) summary of the invention

To the shortcoming that above-mentioned prior art exists, the utility model proposes a kind of Electric Tacker that impacts usefulness continuously that has.

The utility model solves the technical scheme that its technical problem adopted: a kind of Electric Tacker comprises the motor and the transmission mechanism that are placed in the casing; Said casing has projection, wherein settles reciprocating nail hitting pin; Wherein: said casing is supported with the rotating shaft that is connected with motor output shaft through transmission mechanism; Be set with end face tooth-like clutch free to rotate on the said rotating shaft, the end face outer rim of said end face tooth-like clutch is provided with at least one place convex tup; When said convex tup rotates to the precalculated position with the end face tooth-like clutch, tangential and nail hitting pin contacts.

Above basic technical scheme refinement preferably is; Said casing upper end has projection; Said rotating shaft is a level and vertical basically with the maintenance of nail hitting pin; When said convex tup rotated to the extreme higher position with the end face tooth-like clutch, with tangential and nail hitting pin contacts, said nail hitting pin was placed in the projection of casing upper end through back-moving spring.

Be set with the beater wheel that can thereupon rotate on the said rotating shaft, said beater wheel front end face has a double wedge at least, and said beater wheel axially meshes through the double wedge of front end face and the end face tooth of said end face tooth-like clutch.

After the rotating tee of motor is crossed transmission mechanism and is made rotating shaft drive beater wheel to rotate; Because axially meshing drive end face tooth-like clutch, the front end face double wedge on the beater wheel and the end face tooth of end face tooth-like clutch rotate synchronously; The outer rim convex tup of end face tooth-like clutch will be weekly at predetermined tangentially contact impact nail hitting pin; Convert the rectilinear motion that the nail hitting pin impacts nail into thereby will rotatablely move, thereby accomplish the nailing action.Owing to have certain tangential initial velocity during the convex tup of end face tooth-like clutch contact nail hitting pin, therefore can produce than advance and impact effect more efficiently, and beater wheel just can be realized impacting continuously when continuing to rotate.

The further well designed of the utility model is: be shaped on the opposite respective slot of incline direction on said rotating shaft and the beater wheel respectively; In the said respective slot joggle piece is housed; Between one end of said rotating shaft and the beater wheel energy-storaging spring is housed; Said beater wheel have with respect to rotating shaft foremost with the displacement of rearmost end axial location; The front end face double wedge when being in axial location foremost, on the said beater wheel and the end face tooth of end face tooth-like clutch axially mesh, and said energy-storaging spring is in unfolds state.When being in the rearmost end axial location, the front end face double wedge on the said beater wheel will be thrown off with the end face tooth of end face tooth-like clutch, and said energy-storaging spring is in pressured state.

This design make in the ailing machine the nail hitting pin receive temporarily can't overcome impact resistance more greatly the time; The end face tooth-like clutch will force beater wheel at groove with wherein under the effect of joggle piece; Towards the axial direction displacement of compress energy storage spring, thereby beater wheel changed into the elastic potential energy of compress energy storage spring by the mechanical energy of temporary transient stop; And the end face toe joint of the end face tooth-like clutch that the front end face double wedge disengaging of working as beater wheel is obstructed after touch; Energy-storaging spring will discharge elastic potential energy; Make beater wheel at groove with wherein under the effect of joggle piece, normally revolve the speed rotation of speed to surmount rotating shaft, thereby produce bigger kinetic energy; Beater wheel is along the foremost position axially-movable simultaneously, and both mesh once more and energy is passed to the end face tooth-like clutch and impact the nail hitting pin through the convex tup of end face tooth-like clutch again.

In the casing lower end power brick is installed, switch is equipped with at the lever position, and power brick is connected with motor through switch, and the ailing machine of this structure is the wireless charging ailing machine that handled easily uses.

Transmission mechanism is the engagement transmission mechanism that contains the perpendicular quadrature transmission, and the ailing machine of this structure can design fuselage more slenderly, and suitable small space is manipulated.

In a word; Adopt the utility model Electric Tacker owing to rationally be provided with motor and driving mechanism; Thereby compact conformation, can realize the continuous high-efficient of a nail is hit, effectively avoided under some working environment, using the disposable trouble that the type ailing machine can't hammer into nail of injecting.

(4) description of drawings

Fig. 1 is the structural representation of the utility model Electric Tacker.

Fig. 2 is the cutaway view that vertical direction is done.

Fig. 3 is the part explosive view of impact, transmission device.

Fig. 4 is the motion state signal of steel ball, beater wheel inwall guide groove and rotating shaft skewed slot.

(5) specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further explain.

Referring to figs. 1 through shown in Figure 3, the Electric Tacker 1 of present embodiment comprises and holds motor 2 at interior casing 3 and rifle mouth portion 4.The main part of casing 3 forms vertical basically lever, and the upper end is protruded forward and formed rifle mouth portion 4.

Electric Tacker 1 comprises a power brick 5, is used for to motor 2 power supplies.Switch 6 is installed on the casing 3, is used to control the start and stop of motor 2.But rifle mouth portion 4 comprises the nail hitting pin 41 of a pushing tow nail 7, and nail hitting pin 41 basic horizontal are installed in the rifle mouth portion 4 through spring 42, and can do straight reciprocating motion therein.During operation, nail hitting pin 41 end-acted in the head of nail 7.

Motor 2 vertically is installed in the casing 3, and motor output shaft 21 up passes to rotary power on the rotating shaft 8 that is supported on casing top through bearings at both ends through comprising the multi-stage gear transmission of bevel gear.Have a pair of skewed slot 9 on the rotating

shaft

8,9 one-tenth openings of each skewed slot " V " font backwards.Beater wheel 10 is enclosed within on the rotating shaft 8, and its inner cylinder face is provided with a pair of circular arc guide groove 11 relative respectively with two skewed slots, 9 positions, and the circular arc opening direction of each guide groove-11 is opposite with " V " shape skewed slot 9.Skewed slot 9 is at the bottom of the semi arch with guide groove 11.A pair of steel ball 12 lays respectively in the cavity volume that forms between corresponding skewed slot 9 and the guide groove 11, can relatively move along skewed slot 9 and guide groove 11.Can drive beater wheel 10 through the steel ball 12 that is positioned at skewed slot 9 when rotating shaft 8 rotates rotates.Energy-storaging spring 13 is loaded between the step 81 of beater wheel 10 and rotating shaft 8, and the axial force of this energy-storaging spring 13 makes rotating shaft 8 and beater wheel 10 when static and rotation, and steel ball 12 is positioned at the top of skewed slot 9 and the bottom of guide groove 11, shown in Fig. 4 solid line part.At this moment, beater wheel 10 is in the axial location foremost of relative rotation axi 8.End face tooth-like clutch 14 can be sleeved on the rotating shaft 8 freely to rotate, the front of beater wheel 10, the front end face double wedge 101 of

beater wheel

10 and 141 engagements of the end face tooth of end face tooth-like clutch 14.

After operating switch 6, motor 2 starts, and rotates through motor output shaft 21 and multi-stage gear transmission, driven rotary axle 8, and rotating shaft 8 drives beater wheels 10 through steel ball 12 again and rotates together thereupon.The front end face double wedge 101 of beater wheel 10 with 141 engagements of the end face tooth of end face tooth-like clutch 14, end face tooth-like clutch 14 along with beater wheel 10 rotates.As shown in Figure 6; When end and tooth-like clutch 14 turns to a certain position when making that the convex tup 15 of end face tooth-like clutch 14 is run into nail hitting pin 41; The 41 temporary transient rotations (skewed slot 9 on guide groove 11, steel ball 12 and the rotating shaft 8 on the beater wheel 10 is arranged in position shown in the figure solid line at this moment) that stop end face tooth-like clutch 14 and beater wheel 10 of nail hitting pin; And the continuation of rotating shaft 8 rotation makes the skewed slot 9 among Fig. 4 turn to position shown in the dotted line in the direction of arrow A; So steel ball 12 moves down along skewed slot 9 relatively, drive beater wheel 10 and correspondingly be displaced to the axial location (arriving position shown in Fig. 4 dotted line) of rearmost end by foremost the axial location energy-storaging spring 13 that gradually reduces.In this position, the front end face double wedge 101 of beater wheel 10 has been crossed the end face tooth 141 of end face tooth-like clutch 14, and braking is eliminated.The bounce of energy-storaging spring 13 not only makes beater wheel 10 courts axially reset foremost, and passes through the acting in conjunction of skewed slot 9, guide groove 11 and steel ball 12, produces the high speed rotation that surmounts rotating shaft.The result; Front end face double wedge 101 bump on the beater wheel 10 and once more with end face tooth 141 engagements of end face tooth-like clutch 14, again by the convex tup 15 bump nail hitting pins 41 of end face tooth-like clutch 14, compression reseting spring 42; With high-effect bump nail 7, form one-shot.After impacting completion for the first time, nail hitting pin 41 returns to original position under the bounce effect of back-moving spring 42.When end face tooth-like clutch 14 turns to once more 41 brakings of nail hitting pin, get into impulse period for the second time, and the impact process after accomplishing in an identical manner.

Claims

1. an Electric Tacker comprises the motor and the transmission mechanism that are placed in the casing; Said casing has projection, wherein settles reciprocating nail hitting pin;

It is characterized in that: said casing is supported with the rotating shaft that is connected with motor output shaft through transmission mechanism; Be set with end face tooth-like clutch free to rotate on the said rotating shaft, the end face outer rim of said end face tooth-like clutch is provided with at least one place convex tup; When said convex tup rotates to the precalculated position with the end face tooth-like clutch, tangential and nail hitting pin contacts.

2. Electric Tacker as claimed in claim 1; It is characterized in that: said casing upper end has projection; Said rotating shaft is a level and vertical basically with the maintenance of nail hitting pin; When said convex tup rotated to the extreme higher position with the end face tooth-like clutch, with tangential and nail hitting pin contacts, said nail hitting pin was placed in the projection of casing upper end through back-moving spring.

3. Electric Tacker as claimed in claim 2 is characterized in that: be shaped on the opposite respective slot of incline direction on said rotating shaft and the beater wheel respectively; In the said respective slot joggle piece is housed; Between one end of said rotating shaft and the beater wheel energy-storaging spring is housed; Said beater wheel have with respect to rotating shaft foremost with the displacement of rearmost end axial location; The front end face double wedge when being in axial location foremost, on the said beater wheel and the end face tooth of end face tooth-like clutch axially mesh; Said energy-storaging spring is in unfolds state; When being in the rearmost end axial location; Front end face double wedge on the said beater wheel will be thrown off with the end face tooth of end face tooth-like clutch, and said energy-storaging spring is in pressured state.

4. Electric Tacker as claimed in claim 3 is characterized in that: have a pair of skewed slot on the said rotating shaft, said each skewed slot becomes opening " V " font backwards; Have a pair of circular arc guide groove relative respectively with two skewed slot positions on the said beater wheel inner cylinder face, the circular arc opening direction of said each guide groove is opposite with " V " font skewed slot.

5. Electric Tacker as claimed in claim 4 is characterized in that: power brick is installed in said casing lower end, and switch is equipped with at the lever position, and said power brick is connected with motor through switch.

6. Electric Tacker as claimed in claim 5 is characterized in that: said transmission mechanism is the engagement transmission mechanism that contains the perpendicular quadrature transmission.