CN203056755U

CN203056755U - Linear electric cylinder

Info

Publication number: CN203056755U
Application number: CN 201320002730
Authority: CN
Inventors: 吴周欣
Original assignee: FIRST TRANSMISSION TECHNOLOGY Co Ltd
Current assignee: FIRST TRANSMISSION TECHNOLOGY Co Ltd
Priority date: 2013-01-04
Filing date: 2013-01-04
Publication date: 2013-07-10
Anticipated expiration: 2023-01-04

Abstract

A linear electric cylinder comprises a housing, a driving motor, a speed reducing mechanism and an actuating rod. The housing comprises an outer casing pipe, a motor casing pipe, a connecting sleeve and at least one motor bolt, wherein the connecting sleeve is locked on one end of the outer casing pipe, and the motor bolt penetrates the motor casing pipe axially and is locked with the connecting sleeve; the driving motor is arranged in the motor casing pipe; the speed reducing mechanism is arranged in the motor casing pipe and is connected with the driving motor; and the actuating rod is accommodated in the outer casing pipe, penetrates the connecting sleeve to be connected with the speed reducing mechanism, and the actuating rod is driven by the driving motor through the speed reducing mechanism. Therefore, the components can be firmly connected by adopting the simple locking manner.

Description

The linear electrical cylinder

Technical field

The utility model relates to a kind of linear electrical cylinder, particularly the firm linear electrical cylinder of a kind of simple and convenient assembly and structure.

Background technology

Electronic cylinder is the actuation element that is usually used in promoting furniture, and for example it can be applied to the promotion of open and close door, or the adjustment at patient couch top angle of inclination.Electronic cylinder generally can comprise an outer tube, be equipped with an actuator lever in the outer tube, actuator lever is in hollow form and its and is equipped with a screw rod, a wherein end inboard of actuator lever is snapped at the thread of screw rod, be provided with a motor in the electronic cylinder and link the rotation of drive screw axial, when screw axial rotates, drive actuator lever and move axially.A wherein end of its outer tube was fixed in bedstead when electronic cylinder was used for the sick bed adjustment, and actuator lever links bed surface.

Existing electronic cylinder such as TaiWan, China patent TW M404297 and TW M381007 for example, be connected by considerable actuated element between its actuator lever and the motor, and its element is stressed quite big during electronic cylinder start, must utilize complicated structure and firm the binding between those elements, therefore be difficult for assembling, also quite inconvenience of dismounting when similarly, it keeps in repair.

The utility model content

The purpose of this utility model is to provide a kind of linear electrical cylinder that is easy to assemble.

In order to reach above-mentioned purpose, the utility model system provides a kind of linear electrical cylinder, comprises:

One shell comprises an outer tube, a motor sleeve pipe, a branch sleeve and at least one motor bolt, and this branch sleeve interlocking is in an end of this outer tube, and this motor bolt shaft is to running through this motor sleeve pipe and interlocking in this branch sleeve;

One CD-ROM drive motor is arranged in this motor sleeve pipe;

One reducing gear is arranged in this motor sleeve pipe and connects this CD-ROM drive motor; And

One actuator lever, be located in this outer tube in, this actuator lever is passed this branch sleeve and is connected this reducing gear, this CD-ROM drive motor drives this actuator lever by this reducing gear.

Preferably, aforesaid linear electrical cylinder, its outer tube, branch sleeve and the coaxial concatenated configuration of motor sleeve pipe.

Preferably, aforesaid linear electrical cylinder, its branch sleeve have a relative actuation ends and a drive end, and branch sleeve utilizes at least one connecting bolt self-powered moved end axially to be through to actuation ends and axial interlocking outer tube.

Preferably, aforesaid linear electrical cylinder is provided with a bearing in the actuation ends of its branch sleeve, and bearing connects actuator lever.

Preferably, aforesaid linear electrical cylinder, its actuator lever comprises a slip pipe and is arranged in the interior actuating screw rod of slip pipe, and actuating screw passes bearing and branch sleeve connects reducing gear.

Preferably, aforesaid linear electrical cylinder, its branch sleeve have a relative actuation ends and a drive end, and motor bolt interlocking is in drive end.

Preferably, aforesaid linear electrical cylinder also comprises a reducing sleeve and is sheathed on reducing gear and is connected within the drive end of branch sleeve.

Preferably, aforesaid linear electrical cylinder, its reducing sleeve utilize a screw to be locked in reducing gear.

Preferably, aforesaid linear electrical cylinder, its reducing gear include a planet gear train, and CD-ROM drive motor is by the planetary gear set drives actuator lever.

Linear electrical cylinder of the present utility model, utilize outer tube and motor sleeve pipe to limit relative position between CD-ROM drive motor, reducing gear and the actuator lever respectively, connect outer tube and motor sleeve pipe with branch sleeve again, wherein motor bolt-through motor sleeve pipe makes it firmly be connected with branch sleeve, therefore to subtract each element that single structure namely can firmly connect linear electrical cylinder of the present utility model, improved the existing not easy-to-assemble shortcoming of electronic cylinder effectively.

Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to restriction of the present utility model.

Description of drawings

The three-dimensional exploded view (one) of the linear electrical cylinder of Fig. 1 the utility model preferred embodiment;

The three-dimensional exploded view (two) of the linear electrical cylinder of Fig. 2 the utility model preferred embodiment;

The schematic perspective view of the linear electrical cylinder of Fig. 3 the utility model preferred embodiment;

Fig. 4 is the axial cutaway view of the linear electrical cylinder of the utility model preferred embodiment among Fig. 3.

Wherein, Reference numeral

100 shells

110 outer tubes

120 motor sleeve pipes

121 pivot connectors

130 branch sleeves

132 drive ends

131 actuation ends

133 connecting bolts

140 motor bolts

200 CD-ROM drive motor

300 reducing gears

310 reducing sleeves

311 screws

400 actuator lever

410 slip pipes

411 pivoted holes

420 actuating screws

430 activate nut

500 bearings

Embodiment

Below in conjunction with accompanying drawing structural principle of the present utility model and operation principle are done concrete description:

Consult Fig. 1 and Fig. 2, preferred embodiment of the present utility model provides a kind of linear electrical cylinder, and it comprises a shell 100, a CD-ROM drive motor 200, a reducing gear 300 and an actuator lever 400.

In present embodiment, shell 100 comprises an outer tube 110, a motor sleeve pipe 120, a branch sleeve 130 and four motor bolts 140 (the utility model does not limit the number of motor bolt 140), and wherein outer tube 110, branch sleeve 130 are coaxial concatenated configuration with motor sleeve pipe 120.Branch sleeve 130 has a relative actuation ends 131 and a drive end 132, be provided with a bearing 500 in its actuation ends 131, the actuation ends 131 of branch sleeve 130 utilizes four connecting bolt 133 interlockings in a wherein end (the utility model does not limit the number of connecting bolt 133) of outer tube 110.Preferably the barrel along branch sleeve 130 axially runs through branch sleeve 130 to connecting bolt 133 from the drive end 132 of branch sleeve 130, and passes axially interlocking outer tube 110 of back by actuation ends 131.One end of motor sleeve pipe 120 is provided with a pivot connector 121, and its other end then is connected in the drive end 132 of branch sleeve 130.Each motor bolt 140 passes pivot connector 121 respectively and axially runs through motor sleeve pipe 120 back interlockings in the drive end 132 of branch sleeve 130 along the tube wall of motor sleeve pipe 120.

CD-ROM drive motor 200 and reducing gear 300 all are arranged in this motor sleeve pipe 120, include a planet gear train (not shown) in the reducing gear 300, and planetary gearsets power connects CD-ROM drive motor 200 and can drive by driven motor 200.The outer reducing sleeve 310 that is arranged with of reducing gear 300, reducing sleeve 310 utilizes four screws 311 to be locked in reducing gear 300 (the utility model does not limit the number of silk lock) in present embodiment, and reducing sleeve 310 is connected within the drive end 132 of branch sleeve 130.

Actuator lever 400 is arranged within the outer tube 110 slidably, and actuator lever 400 comprises a slip pipe 410, is equipped with one in it and activates screw rod 420, and a wherein end of slip pipe 410 is provided with one and activates nut 430, and the other end then has a pivoted hole 411.Actuating nut 430 is spirally connected and is sheathed on outside the actuating screw 420, and activate nut 430 outer wall interlock outer tube 110 inwall and make its axial rotation with respect to outer tube 110 locked, activate therefore that nut 430 can move axially and can't axial rotation in outer tube 110.Actuating screw 420 is connected to bearing 500 and connects planetary gearsets in the reducing gear 300 by branch sleeve 130 and power, so CD-ROM drive motor 200 can drive actuating screw 420 by planetary gearsets and axially rotates.When actuating screw 420 axially rotates, promote to activate nut 430 axial slip in outer tube 110, drive slip pipe 410 flexible slippage in outer tube 110 by this.

Linear electrical cylinder of the present utility model, it is for promoting furniture (for example sick bed bed board or door, the utility model is not limited to this), its working method is that the pivoted hole 411 with pivot connector 121 and actuator lever 400 is articulated in two independent components in the furniture respectively, utilizes CD-ROM drive motor 200 to drive actuator lever 400 and stretches slippage and change relative position between two independent components of furniture outer tube 110 in.

Linear electrical cylinder of the present utility model, utilize outer tube 110 and motor sleeve pipe 120 to limit relative position between CD-ROM drive motor 200, reducing gear 300 and the actuator lever 400 respectively, therefore as long as motor, reducing gear 300 and actuator lever 400 are inserted respectively in outer tube 110 and the motor sleeve pipe 120, can finish assembling with branch sleeve 130 connection outer tubes 110 and motor sleeve pipe 120 again.Wherein utilize connecting bolt 133 and motor bolt 140 interlockings between branch sleeve 130 and outer tube 110 and the motor sleeve pipe 120 respectively, it is few that its Connection Element only needs connecting bolt 133 and motor bolt 140 therefore to have the required Connection Element of electronic cylinder now.Moreover motor bolt 140 runs through motor sleeve pipe 120, therefore makes motor sleeve pipe 120 can firmly be connected with branch sleeve 130.So the simple structure of each element utilization of linear electrical cylinder of the present utility model namely can firmly connect, it has improved the existing not easy-to-assemble shortcoming of electronic cylinder effectively.

Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.

Claims

1. a linear electrical cylinder is characterized in that, comprises:

One CD-ROM drive motor is arranged in this motor sleeve pipe;

2. linear electrical cylinder according to claim 1 is characterized in that, this outer tube, this branch sleeve and the coaxial concatenated configuration of this motor sleeve pipe.

3. linear electrical cylinder according to claim 1, it is characterized in that, this branch sleeve has a relative actuation ends and a drive end, this branch sleeve utilize at least one connecting bolt from this drive end axle to being through to this actuation ends and axial this outer tube of interlocking.

4. according to the described linear electrical cylinder of claim 3, it is characterized in that be provided with a bearing in the actuation ends of this branch sleeve, this bearing connects this actuator lever.

5. linear electrical cylinder according to claim 4 is characterized in that, this actuator lever comprises a slip pipe and is arranged in the interior actuating screw rod of this slip pipe, and this actuating screw passes this bearing and this branch sleeve connects this reducing gear.

6. linear electrical cylinder according to claim 1 is characterized in that, this branch sleeve has a relative actuation ends and a drive end, and this motor bolt interlocking is in this drive end.

7. linear electrical cylinder according to claim 6 also comprises a reducing sleeve, is sheathed on this reducing gear and is connected within this drive end of this branch sleeve.

8. linear electrical cylinder according to claim 7 is characterized in that, this reducing sleeve utilizes a screw to be locked in this reducing gear.

9. linear electrical cylinder according to claim 1 is characterized in that, this reducing gear includes a planet gear train, and this CD-ROM drive motor is by this actuator lever of this planetary gear set drives.