CN205947330U

CN205947330U - Electric pull rod

Info

Publication number: CN205947330U
Application number: CN201620876226.2U
Authority: CN
Inventors: 杨光明
Original assignee: Guangzhou Changyi Auto Parts Co Ltd
Current assignee: Guangzhou Changyi Auto Parts Co Ltd
Priority date: 2016-08-12
Filing date: 2016-08-12
Publication date: 2017-02-15
Anticipated expiration: 2026-08-12

Abstract

The utility model provides an electric pull rod, include tube seat, extension spring, lead screw, linkage pipe fitting and be used for the drive lead screw pivoted motor device, the motor device install in in the tube seat, just the motor device pass through gear units with an end connection of lead screw, the first end of linkage pipe fitting is equipped with the screw, the lead screw has the external screw thread, the lead screw passes the screw stretches into the inside of linkage pipe fitting, the external screw thread with the thread to match of screw closes, the extension spring cover is located the linkage pipe fitting is outside, just the both ends of extension spring are connected respectively the tube seat with the second end of linkage pipe fitting. This electric pull rod can realize electric control, brings the convenience for the switching of car tail -gate.

Description

Electronic tie rod

Technical field

This utility model is related to the opening and closing device of automobile tail gate, more particularly, to a kind of electronic tie rod.

Background technology

At present, domestic automobile tail gate is the stake tool with turning arm as opening and closing, also has partial automobile tail-gate to adopt The combining form of torsion spring (or extension spring) aerating spring come to realize be opened and closed.When opening tail-gate, tail-gate lock first to be unclamped manually, so Afterwards also will manual pull-up tail-gate pushing up, and onboard make turning arm under spring effect by car door opening；When closing tail-gate, then With tail-gate under hand pressure.Such mechanism operationally wastes time and energy, and makes troubles to the opening and closing of automobile tail gate.

Content of the invention

For solving above-mentioned technical problem, the purpose of this utility model is to provide a kind of electronic tie rod, this electronic tie rod energy Realize Electronic control, bring convenience to the opening and closing of automobile tail gate.

Based on this, the utility model proposes a kind of electronic tie rod, including shell seat, extension spring, screw mandrel, linkage pipe fitting and For the electric machine driving described screw mandrel to rotate, described electric machine is installed in described shell seat, and described electric machine It is connected with the first end of described screw mandrel by geared system, the first end of described linkage pipe fitting is provided with screw, described screw mandrel There is external screw thread, described screw mandrel passes through described screw and stretches into inside, described external screw thread and the described screw of described linkage pipe fitting Screw thread match, described extension spring is sheathed on outside described linkage pipe fitting, and the two ends of described extension spring connect described shell respectively Seat and the second end of described linkage pipe fitting.

Optionally, described linkage pipe fitting includes conduit and nut, and described nut is fixed on the first end of described conduit, and Described nut is inserted in described conduit, and located at described nut, described screw mandrel passes through described nut and leads described in stretching into described screw The inside of pipe, described extension spring is sheathed on outside described conduit.

Optionally, described nut is long nut, and this long nut includes flange part, and described flange part is buckled in described conduit Pipe end.

Optionally, described shell seat is connected with the first ball head connecting piece, and the second end of described conduit is connected with the second ball Head connector.

Optionally, described electronic tie rod also includes sleeve pipe, guider and locating part, and described sleeve pipe is connected with described shell seat Connect, and described sleeve pipe is sheathed between described conduit and described extension spring, described locating part is connected with described sleeve pipe, and described spacing Part is provided with confined planes, and described confined planes are contacted with the outer wall of described conduit, the second end of described guider and described screw mandrel Connect, and described guider is provided with spigot surface, described spigot surface is contacted with the inwall of described conduit.

Optionally, described shell seat includes mounting seat and installs lid, and described mounting seat is provided with containing cavity, and described mounting seat Surround installation cavity with described installation lid, described installation cavity is connected with described containing cavity, and described containing cavity is located at described extension spring Side, described electric machine is arranged in described containing cavity, and the output shaft of described electric machine stretches in described installation cavity, institute The output shaft stating electric machine is provided with spline, and described spline and described geared system are meshed, and described spline and described gear Device may be contained within described installation intracavity.

Optionally, described geared system includes first gear and second gear, and described first gear is socketed on described screw mandrel First end, described installation intracavity be provided with for described second gear dispose installation position, described spline, described first gear are divided It is not meshed with described second gear.

Optionally, described mounting seat includes main base body and the bottom with described seat of honour mates, described main base body and Described bottom surrounds described containing cavity.

Optionally, described installation intracavity is provided with bearing block, described bearing block is provided with bearing, described bearing is socketed on Outside described screw mandrel.

Optionally, described electric machine includes gear motor and wiring board, and described gear motor and described wiring board are electrically connected Connect, described wiring board is provided with the hall sensing element of the rotation number of turns for feeding back described gear motor.

Implement this utility model embodiment, have the advantages that：

Electronic tie rod of the present utility model includes shell seat, extension spring, electric machine, screw mandrel and linkage pipe fitting, described electricity Machine device is connected with the first end of described screw mandrel by geared system, and described screw mandrel passes through described linkage pipe fitting first end Screw and stretch into linkage pipe fitting inside, the two ends of described extension spring connect the second of described shell seat and described linkage pipe fitting respectively End, thus, electronic tie rod of the present utility model can achieve Electronic control, and when carrying out Electronic control, described electric machine leads to Cross geared system to drive described screw mandrel to rotate, the rotation of this screw mandrel can drive described linkage pipe fitting to move in the axial direction of screw mandrel Dynamic, and so that described extension spring is stretched or shrink, and then the Telescopic of electronic tie rod can be realized；Electronic tie rod of the present utility model Can bring to the opening and closing of automobile tail gate convenient as the switching mechanism of automobile tail gate.

Brief description

Fig. 1 is the perspective view of the electronic tie rod described in this utility model embodiment.

Fig. 2 is the flexible stroke cross section structure diagram the most in short-term of electronic tie rod described in this utility model embodiment.

Fig. 3 is the partial enlarged drawing at A in Fig. 2.

Fig. 4 is the partial enlarged drawing at B in Fig. 2.

Fig. 5 be electronic tie rod described in this utility model embodiment stretch stroke the longest when cross section structure diagram.

Description of reference numerals：

1st, bottom, 2, wiring board, the 3, first ball head connecting piece, 4, screw, 5, shell seat, 6, mounting seat, 7, first gear Key, 8, first gear axle, 9, gear motor, 10, bearing cap, 11, shock absorbing ring, 12, bearing, 13, bearing block, 14, sleeve pipe, 15, Conduit, 16, extension spring, 17, screw mandrel, 18, guider, 19, locating part, 20, spring base, 21, interior base, 22, interior pad, 23, outer pad, 24th, the second ball head connecting piece, 25, second gear axle, 26, lid is installed, 27, second gear key, 28, output shaft, 29, nut, 30, Spline.

Specific embodiment

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work The every other embodiment being obtained, broadly falls into the scope of this utility model protection.

Referring to Fig. 1 to Fig. 5, the electronic tie rod of the present embodiment include shell seat 5, extension spring 16, screw mandrel 17, linkage pipe fitting and The electric machine rotating for drive screw 17, electric machine is installed in shell seat 5, and electric machine pass through geared system with The first end of screw mandrel 17 connects, and the first end of linkage pipe fitting is provided with screw, and screw mandrel 17 has external screw thread, and screw mandrel 17 passes through spiral shell The inside of linkage pipe fitting is simultaneously stretched in hole, and external screw thread matches with the screw thread of screw, and extension spring 16 is sheathed on outside the pipe fitting that links, and draws The two ends difference connecting tube shell block 5 of spring 16 and the second end of linkage pipe fitting.Wherein, above-mentioned linkage pipe fitting includes conduit 15 and spiral shell Female 29, nut 29 is fixed on the first end of conduit 15, and nut 29 is inserted in conduit 15, above-mentioned screw on nut 29, Screw mandrel 17 passes through the screw of nut 29 and stretches into the inside of conduit 15, and extension spring 16 is sheathed on outside conduit 15, and shell seat 5 passes through screw 4 are connected with the first ball head connecting piece 3, and the second end of conduit 15 is connected with the second ball head connecting piece 24；Nut 29 is long nut 29, this long nut 29 includes flange part, and flange part is buckled in the pipe end of conduit 15.

Based on said structure, the electronic tie rod of the present embodiment can achieve Electronic control, and when carrying out Electronic control, motor fills Put and rotated come drive screw 17 by geared system, the rotation of this screw mandrel 17 can drive linkage pipe fitting to move in the axial direction of screw mandrel 17 Dynamic, and so that extension spring 16 is stretched or shrink, and then under the interaction force of extension spring 16 and screw mandrel 17, conduit 15 enables straight line and stretches Contracting motion, is achieved in the Telescopic of electronic tie rod；The electronic tie rod of the present embodiment can as the switching mechanism of automobile tail gate, Can bring to the opening and closing of automobile tail gate convenient.Wherein, above-mentioned long nut 29 is a kind of axially prolonged nut 29, and it has good Good axially directed effect, can be good at realizing axial movement, is a kind of reliable accessory of structure；And above-mentioned first bulb is even Fitting 3 can be used for connecting automobile tail gate, and above-mentioned second ball head connecting piece 24 can be used for connecting body of a motor car, thus, it is possible to by this electricity Dynamic pull bar is connected between automobile tail gate and body of a motor car.

Further, above-mentioned shell seat 5 includes mounting seat 6 and installs lid 26, and mounting seat 6 is provided with containing cavity, and mounting seat 6 Surround installation cavity with installing lid 26, installation cavity is connected with containing cavity, containing cavity is located at the side of extension spring 16, electric machine is arranged In containing cavity, it has been provided with the shock absorbing ring 11 of cushioning effect between this electric machine and mounting seat, and the output of electric machine Axle 28 stretches in installation cavity, and the output shaft 28 of electric machine is provided with spline 30, and spline 30 and geared system are meshed, and spline 30 May be contained within intracavity is installed with geared system；Wherein, said gear device includes first gear and second gear, first gear set Be connected to the first end of screw mandrel 17, intracavity be installed and be provided with the installation position disposing for second gear, spline 30, first gear respectively with Second gear is meshed, and specifically, referring to Fig. 3, first gear includes first gear key 7 and first gear axle 8, first gear key 7 are socketed on outside first gear axle 8 forms first gear, and second gear includes second gear key 27 and second gear axle 25, the Two gear keys 27 are socketed on outside second gear axle 25 and form second gear；Above-mentioned mounting seat 6 then include main base body and with master The bottom 1 that pedestal matches, main base body and bottom 1 surround above-mentioned containing cavity；Thus, on the one hand, electric machine can be realized and lead to Crossing geared system and carry out drive screw 17 and rotate, and then realize screw mandrel 17 drives conduit 15 to do stretching motion；On the other hand additionally it is possible to Facilitate the assembling of the associated components such as electric machine, geared system, and then facilitate the assembling of this electronic tie rod.Above-mentioned installation intracavity peace Equipped with bearing block 13 and bearing cap 10, bearing 12 is installed between bearing block 13 and bearing cap 10, and bearing 12 is socketed on screw mandrel Outside 17, this is conducive to the smooth rotation of electric machine drive screw 17.Above-mentioned electric machine includes gear motor 9 and wiring board 2, Gear motor 9 and wiring board 2 electrically connect, and wiring board 2 is provided with the hall sensing unit of the rotation number of turns for feeding back gear motor 9 Part, thus, hall sensing element can the rotation number of turns based on hall sensing principle accurate feedback motor such that it is able to realize right Precise control in the stroke of this electronic tie rod；Wherein, gear motor 9 is the motor being connected with reduction box.

In addition, it is necessary to illustrate, above-mentioned first ball head connecting piece 3 is connected on above-mentioned installation lid 26 by screw 4；Lead The second end of pipe 15 is connected with the second ball head connecting piece 24 by an interior base 21, and the end of extension spring 16 is connected with spring base 20, this spring base 20 passes through interior pad 22 and outer pad 23 is socketed in outside above-mentioned interior base 21, and thus, extension spring 16 can be with screw mandrel 17 1 Rise and the flexible of conduit 15 is had an effect.

Referring to Fig. 2 and Fig. 4, the electronic tie rod of the present embodiment also includes sleeve pipe 14, guider 18 and locating part 19, guider 18 is an assembly, and sleeve pipe 14 is connected with the mounting seat 6 of above-mentioned shell seat 5, and sleeve pipe 14 is sheathed on above-mentioned conduit 15 and above-mentioned Between extension spring 16, locating part 19 is connected with sleeve pipe 14, and locating part 19 is provided with confined planes, the outer wall of confined planes and above-mentioned conduit 15 Contact, guider 18 is connected with the second end of screw mandrel 17, and guider 18 is provided with spigot surface, spigot surface is interior with conduit 15 Wall contacts, and thereby, it is possible to preferably be guided to the motion of conduit 15, so that conduit 15 is capable of along screw mandrel 17 axial direction side To linear telescopic move.

The electronic tie rod of the present embodiment is mountable between automobile tail gate and body of a motor car, is applied to opening of automobile tail gate Close, in use, can as common tail-gate hand switch automobile tail gate, also can at driver's cabin or tail-gate pass through press Button opens or closes automobile tail gate by Electronic control mode moreover it is possible to open or close automobile tail gate by remote manipulation, behaviour Make convenient, laborsaving, exquisiteness novel in design, small volume, high precision, Complete Synchronization in control.In addition, the electronic tie rod of the present embodiment Flexible stroke is also easy to control.

Electronic tie rod of the present utility model includes shell seat, extension spring, electric machine, screw mandrel and linkage pipe fitting, described electricity Machine device is connected with the first end of described screw mandrel by geared system, and described screw mandrel passes through described linkage pipe fitting first end Screw and stretch into linkage pipe fitting inside, the two ends of described extension spring connect the second of described shell seat and described linkage pipe fitting respectively End, wherein, described shell seat as the installation carrier of described electric machine, thus, electronic tie rod of the present utility model can be real Existing Electronic control, when carrying out Electronic control, described electric machine drives described screw mandrel to rotate by geared system, this screw mandrel Rotation described linkage pipe fitting can be driven to move up in the axle of screw mandrel, and so that described extension spring is stretched or shrink, and then can be real The Telescopic of existing electronic tie rod；Electronic tie rod of the present utility model can give automobile as the switching mechanism of automobile tail gate It is convenient that the opening and closing of tail-gate brings.

It should be appreciated that adopting term " first ", " second " etc. to describe various information in this utility model, but these Information should not necessarily be limited by these terms, and these terms are only used for same type of information is distinguished from each other out.For example, without departing from this In the case of utility model scope, " first " information can also be referred to as " second " information, similar, and " second " information can also It is referred to as " first " information.

The above is preferred implementation of the present utility model it is noted that ordinary skill for the art For personnel, on the premise of without departing from this utility model principle, some improvement can also be made and deform, these improve and become Shape is also considered as protection domain of the present utility model.

Claims

1. a kind of electronic tie rod is it is characterised in that including shell seat, extension spring, screw mandrel, linkage pipe fitting and being used for driving described silk The electric machine that bar rotates, described electric machine is installed in described shell seat, and described electric machine pass through geared system with The first end of described screw mandrel connects, and the first end of described linkage pipe fitting is provided with screw, and described screw mandrel has external screw thread, described Screw mandrel passes through described screw and stretches into the inside of described linkage pipe fitting, and described external screw thread is matched with the screw thread of described screw, institute State extension spring to be sheathed on outside described linkage pipe fitting, and the two ends of described extension spring connect described shell seat and described linkage pipe fitting respectively The second end.

2. electronic tie rod according to claim 1 is it is characterised in that described linkage pipe fitting includes conduit and nut, described Nut is fixed on the first end of described conduit, and described nut is inserted in described conduit, and described screw is located at described nut, institute State screw mandrel to pass through described nut and stretch into the inside of described conduit, described extension spring is sheathed on outside described conduit.

3. it is characterised in that described nut is long nut, this long nut includes convex electronic tie rod according to claim 2 Edge, described flange part is buckled in the pipe end of described conduit.

4. electronic tie rod according to claim 2 is it is characterised in that described shell seat is connected with the first ball head connecting piece, The second end of described conduit is connected with the second ball head connecting piece.

5. electronic tie rod according to claim 2 is it is characterised in that also include sleeve pipe, guider and locating part, described set Pipe is connected with described shell seat, and described sleeve pipe is sheathed between described conduit and described extension spring, described locating part with described Telescopic joint, and described locating part is provided with confined planes, described confined planes are contacted with the outer wall of described conduit, described guider with The second end of described screw mandrel connects, and described guider is provided with spigot surface, and described spigot surface is connected with the inwall of described conduit Touch.

6. the electronic tie rod according to any one of claim 1 to 5 it is characterised in that described shell seat include mounting seat and Lid is installed, described mounting seat is provided with containing cavity, and described mounting seat and described installation lid surround installation cavity, described installation cavity and institute State containing cavity to be connected, described containing cavity is located at the side of described extension spring, described electric machine is arranged in described containing cavity, and The output shaft of described electric machine stretches in described installation cavity, and the output shaft of described electric machine is provided with spline, described spline and Described geared system is meshed, and described spline and described geared system may be contained within described installation intracavity.

7. electronic tie rod according to claim 6 is it is characterised in that described geared system includes first gear and the second tooth Wheel, described first gear is socketed on the first end of described screw mandrel, and described installation intracavity is provided with for the arrangement of described second gear Installation position, described spline, described first gear are meshed with described second gear respectively.

8. electronic tie rod according to claim 6 it is characterised in that described mounting seat include main base body and with described master The bottom that pedestal matches, described main base body and described bottom surround described containing cavity.

9. electronic tie rod according to claim 6 is it is characterised in that described installation intracavity is provided with bearing block, described axle In bearing, bearing is installed, described bearing is socketed on outside described screw mandrel.

10. electronic tie rod according to claim 1 is it is characterised in that described electric machine includes gear motor and circuit Plate, described gear motor and the electrical connection of described wiring board, described wiring board is provided with the rotation for feeding back described gear motor The hall sensing element of the number of turns.