CN217001398U

CN217001398U - Electric support rod

Info

Publication number: CN217001398U
Application number: CN202220001785.4U
Authority: CN
Inventors: 吴奇旺; 杨丰霖; 奚仲强
Original assignee: Fuzhou Mingfang Automobile Parts Industry Co Ltd; Hsin Chong Machinery Works Co Ltd
Current assignee: Fuzhou Mingfang Automobile Parts Industry Co Ltd; Hsin Chong Machinery Works Co Ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-07-19
Anticipated expiration: 2032-01-04

Abstract

The utility model relates to an electric supporting rod, which comprises a driving component and an actuating component, wherein the driving component comprises a first outer barrel and a driver arranged in the first outer barrel, the first outer barrel is provided with an opening, an elastic clamping hook is arranged on the inner wall of the first outer barrel, the driver is provided with a transmission groove, the actuating component comprises a second outer barrel and a transmission screw rod penetrating through the second outer barrel, the second outer barrel is provided with an inserting part butted with the opening, the transmission screw rod is provided with a driven end meshed with the transmission groove, the inserting part extends to form a pin surrounding the driven end, and the pin is buckled with the elastic clamping hook to longitudinally lock the driving component and the actuating component; therefore, the structure of the electric support rod can be simplified, the assembly is easy, and the production cost is reduced.

Description

Electric support rod

Technical Field

The present invention relates to an electric supporting rod, and more particularly to an electric supporting rod which has a simple structure and is easy to assemble and does not drive an actuating component to rotate.

Background

With the rapid development of the automobile industry, electric vehicle doors are increasingly widely used for convenience. The general electric vehicle door is supported by electric support rods arranged on the left side and the right side, and the length of the electric vehicle door is adjusted in a telescopic mode through a telescopic screw in the electric support rods by an internal electric motor, so that the effect of opening or closing the electric vehicle door can be achieved.

The electric support rod is generally in a two-section type in the design of the shell, so that the electric motor and the telescopic screw rod are conveniently respectively arranged in the two corresponding shell bodies, and then the two shell bodies are assembled to enable the electric motor and the telescopic screw rod to be in power connection. However, in order to prevent the housing of the telescopic screw from being driven to rotate during the operation, a fixing member is additionally used for positioning, so that the electric support rod has a complex structure, is not easy to assemble, and has high production cost.

SUMMERY OF THE UTILITY MODEL

The main purpose of the present invention is to simplify the structure of an electric support bar, facilitate assembly, and reduce production costs.

In order to achieve the above object, the present invention provides an electric support rod, which includes a driving assembly and an actuating assembly, wherein the driving assembly includes a first outer cylinder and a driver accommodated in the first outer cylinder, one end of the first outer cylinder has an opening, one end of the driver facing the opening has a transmission groove, a plurality of elastic hooks are convexly disposed on the inner wall of the first outer cylinder between the opening and the transmission groove, the actuating assembly includes a second outer cylinder and a transmission screw penetrating the second outer cylinder, one end of the second outer cylinder has an insertion portion, the transmission screw has a driven end penetrating the insertion portion, the insertion portion extends to have a plurality of pins surrounding the driven end, the insertion portion is in butt joint with the opening, the driven end engages with the transmission groove, and each pin is buckled with each elastic hook to longitudinally lock the driving assembly and the actuating assembly.

Optionally, each of the elastic hooks includes a root and an elastic arm, and each of the roots is disposed on the first outer barrel and connected to the corresponding elastic arm.

Optionally, each elastic arm is concavely provided with a hook part, the outer edge of each pin is provided with an outer barb, and each hook part is respectively clamped with each outer barb to longitudinally stop each pin.

Optionally, the insertion part further extends to form a plurality of positioning columns, the driver is provided with a plurality of positioning holes surrounding the transmission groove, and each positioning column is inserted into each corresponding positioning hole.

Optionally, each of the positioning pillars is spaced apart from each of the pins.

Optionally, each positioning column extends to the end of each pin.

Optionally, the connector comprises a bearing, the bearing is sleeved on the transmission screw, a plurality of inner barbs are arranged on the inner edge of each pin, and the bearing is clamped and fixed by the inner barbs and the insertion part together.

Optionally, the inner edge of the transmission groove is provided with a plurality of internal teeth, and the outer edge of the driven end is provided with a plurality of external teeth corresponding to the internal teeth.

Optionally, the actuating assembly further includes a movable inner cylinder, the movable inner cylinder is movably accommodated in the second outer cylinder and engaged with the transmission screw, the movable inner cylinder has a fixed end exposed out of the second outer cylinder, and the fixed end is provided with a rotary joint.

Optionally, one end of the first outer barrel, which is far away from the opening, is provided with a connecting portion, and the connecting portion is provided with a joint.

The utility model also has the following effects: the driving assembly can be fixed on the vehicle body or the door body through the joint. The actuating component can be fixed on the door body or the vehicle body through the fixing hole of the rotary joint. The bearing is clamped and fixed by the inner inverted hook of the inner edge of the pin and the insertion part together, so that the transmission screw rod can keep the central position. The positioning effect can be achieved by inserting the positioning columns into the corresponding positioning holes, and the second outer cylinder is prevented from being driven to rotate when the driver drives the transmission screw to rotate.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is an exploded perspective view of the present invention.

Fig. 3 is an enlarged view of a portion of the insertion end of the present invention.

Fig. 4 is a partially enlarged view of the opening of the present invention.

Fig. 5 to 9 are sectional views showing the states (one) to (five) of use of the present invention.

Fig. 10 to 12 are sectional views showing states (one) to (three) of use of another embodiment of the present invention.

In the figure:

10 a drive assembly; 11, a first outer cylinder; 111, opening; 112, a connecting part; 112A is a joint; 113 elastic hook; 113A, root; 113B, an elastic arm; 113C, hook part; 12, a driver; 121, a transmission groove; 121A is inner teeth; 122, positioning holes; 20, an actuating assembly; 21, a second outer cylinder; 211, a plug-in part; 212, a pin; 212A, inner barbs; 212B, an external barb; 213, a positioning column; 22, a transmission screw; 221, a driven end; 221A external teeth; 23, a bearing; 24, moving the inner cylinder; 241 is a fixed end; 241A is a rotary joint; 241B, a fixing hole.

Detailed Description

The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.

The utility model provides an electric support rod which is used for opening or closing an electric door of an automobile and used as a support. Referring to fig. 1 to 4, the electric supporting rod mainly includes a driving assembly 10 and an actuating assembly 20.

The driving assembly 10 mainly includes a first outer cylinder 11 and a driver 12. The first outer tube 11 is a hollow tube, and has an opening 111 at one end of the first outer tube 11, and a connecting portion 112 at an end away from the opening 111. The connecting portion 112 has a joint 112A to fix the driving assembly 10 to the vehicle body or the door body. In the embodiment, the driver 12 is an electric motor, but the utility model is not limited thereto. The driver 12 is accommodated in the first outer cylinder 11, and a transmission groove 121 is formed at an end of the driver 12 facing the opening 111, and a plurality of (more than two) internal teeth 121A are disposed on an inner edge of the transmission groove 121. A plurality of elastic hooks 113 are convexly arranged on the inner wall of the first outer cylinder 11 between the opening 111 and the transmission groove 121 of the driver 12.

The actuating assembly 20 mainly includes a second outer cylinder 21 and a transmission screw 22. The second outer cylinder 21 is a hollow cylinder, and an insertion part 211 corresponding to the opening 111 of the first outer cylinder 11 is provided at one end of the second outer cylinder 21. The driving screw 22 is disposed through the second outer cylinder 21 and has a driven end 221 penetrating through the insertion part 211, and the outer edge of the driven end 221 is provided with a plurality of outer teeth 221A engaging with the inner teeth 121A. The plug 211 has a plurality of pins 212 extending longitudinally corresponding to the elastic hooks 113, and each pin 212 is disposed around the driven end 221. Preferably, the actuating assembly 20 further includes a bearing 23. The bearing 23 is sleeved with the driving screw 22, and a plurality of inner barbs 212A are recessed on the inner edge of each pin 212. The inner barbs 212A and the insertion portions 211 hold the bearing 23 together, thereby maintaining the center position of the drive screw 22.

Illustratively, the actuator assembly 20 further includes a movable inner barrel 24. The movable inner cylinder 24 is movably accommodated in the second outer cylinder 21, and the movable inner cylinder 24 is engaged with the transmission screw 22, so that the transmission screw 22 can drive the movable inner cylinder 24 to move telescopically relative to the second outer cylinder 21. The movable inner barrel 24 has a fixed end 241 exposed out of the second outer barrel 21. The fixing end 241 is provided with a rotating joint 241A, and the rotating joint 241A is provided with a fixing hole 241B for fixing the actuating assembly 20 on the door body or the vehicle body.

Referring to fig. 1 and 2, the actuating assembly 20 is assembled with the driving assembly 10. Specifically, the insertion portion 211 of the second outer cylinder 21 is abutted to the opening 111 of the first outer cylinder 11, so that the driven end 221 of the driving screw 22 can be engaged in the driving groove 121 of the driver 12, and each pin 212 is buckled with each corresponding elastic hook 113 to longitudinally lock the driving assembly 10 and the actuating assembly 20. Thereby, the driving assembly 10 and the actuating assembly 20 can be connected and fixed, and the driving groove 121 of the driver 12 and the driven end 221 of the driving screw 22 are connected in a power manner, so that the driver 12 drives the driving screw 22 to rotate to stretch and contract the movable inner cylinder 24.

Further, each elastic hook 113 includes a root portion 113A and an elastic arm 113B. The root portions 113A are provided on the inner wall of the first outer cylinder 11, and are connected to the corresponding elastic arms 113B. Each spring arm 113B is concavely provided with a hook 113C. An outer barb 212B is disposed on the outer edge of each pin 212. Each hook 113C is engaged with each outer barb 212B to longitudinally stop each pin 212. In the present embodiment, each of the elastic hooks 113 is a group of two elastic hooks 113, and the elastic hooks 113 are disposed corresponding to one of the pins 212 (i.e. the number of the elastic hooks 113 is twice of the number of the pins 212), and the two elastic hooks 113 in each group are disposed oppositely, so that the hook portions 113C of the two elastic arms 113B are commonly engaged in the outer barbs 212B of the corresponding pins 212. However, the present invention is not limited thereto, and for example, the number of the elastic hooks 113 may be the same as the number of the pins 212, as long as the elastic hooks can effectively function as the locking stops.

In addition, the inserting portion 211 of the second outer barrel 21 further has a plurality of positioning posts 213 extending therefrom, and the driver 12 is recessed with a plurality of positioning holes 122 surrounding the transmission slot 121. In the present embodiment, the positioning posts 213 are spaced apart from the pins 212, but the utility model is not limited thereto. The positioning posts 213 are inserted into the corresponding positioning holes 122 to achieve the positioning effect, so as to prevent the transmission groove 121 of the driver 12 from driving the second outer cylinder 21 of the actuating assembly 20 to rotate when driving the transmission screw 22 to rotate. In the embodiment, the number of the positioning posts 213 is four, but the utility model is not limited thereto, and for example, the number of the positioning posts 213 may be two, three or more than four, as long as the positioning effect can be achieved without rotation.

Referring to fig. 5 to 9, the assembly of the actuating element 20 and the driving element 10 is illustrated. Referring to fig. 5 and 6, before assembling, the actuating assembly 20 and the driving assembly 10 need to align the driven end 221 of the driving screw 22 with the driving slot 121 of the driver 12, and align the positioning posts 213 with the corresponding positioning holes 122 (as shown in fig. 5), so that the pins 212 are aligned with the corresponding elastic hooks 113 (as shown in fig. 6). When the inserting portion 211 is inserted into the opening 111, each pin 212 pushes up the two corresponding elastic arms 113B (not shown in the drawings) so that each pin 212 can be inserted between two corresponding elastic hooks 113. Referring to fig. 7 to 9, after the actuating assembly 20 is inserted to the positioning position, the insertion portion 211 of the second outer cylinder 21 is engaged in the opening 111 of the first outer cylinder 11, at this time, the driven end 221 of the driving screw 22 is engaged in the driving groove 121 of the driver 12, and each positioning post 213 is inserted in each corresponding positioning hole 122 to prevent the second outer cylinder 21 from rotating (as shown in fig. 7), and the outer barb 212B of each pin 212 is blocked and stopped by the hook portion 113C of each corresponding two elastic arms 113B (as shown in fig. 8 and 9), so as to longitudinally lock the actuating assembly 20 and the driving assembly 10 and complete the assembly.

Referring to fig. 10 to fig. 12, a main difference of the second embodiment of the present invention is that each positioning post 213 extends to the end of each pin 212, so that each pin 212, the corresponding positioning post 213 and the corresponding positioning hole 122 are located on the same straight line. Referring to fig. 10, before assembly, the driven end 221 of the driving screw 22 is aligned with the driving slot 121 of the driver 12, and the positioning posts 213 are aligned with the positioning holes 122, and since the pins 212 and the corresponding positioning posts 213 and positioning holes 122 are located on the same straight line, the pins 212 are aligned with the corresponding elastic hooks 113. Referring to fig. 11 and 12, after the actuating assembly 20 and the driving assembly 10 are assembled, the outer barbs 212B of the pins 212 are blocked by the hook portions 113C of the two corresponding elastic arms 113B, and the positioning posts 213 at the front end are inserted into the corresponding positioning holes 122. Therefore, the design of the second embodiment can effectively simplify the whole structure, reduce assembly errors and reduce production cost, and meanwhile, the same technical effect as that of the first embodiment can be kept.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the utility model is all within the protection scope of the utility model. The protection scope of the utility model is subject to the claims.

Claims

1. An electric strut, comprising:

the driving assembly comprises a first outer barrel and a driver accommodated in the first outer barrel, wherein one end of the first outer barrel is provided with an opening, one end of the driver facing the opening is provided with a transmission groove, and a plurality of elastic clamping hooks are convexly arranged on the inner wall of the first outer barrel between the opening and the transmission groove; and

the actuating component comprises a second outer barrel and a transmission screw penetrating through the second outer barrel, one end of the second outer barrel is provided with an inserting part, the transmission screw is provided with a driven end penetrating through the inserting part, and the inserting part extends to form a plurality of pins surrounding the driven end;

the inserting part is butted with the opening, the driven end is meshed with the transmission groove, and the pins are respectively buckled with the elastic clamping hooks to longitudinally lock the driving component and the actuating component.

2. The motorized support brace of claim 1 wherein each of the resilient hooks includes a root and a resilient arm, each root being disposed on the first outer tube and connected to a corresponding resilient arm.

3. The motorized support stand of claim 2 wherein each of said resilient arms is recessed with a hook portion, and an outer edge of each of said legs has an outer barb, each of said hook portions engaging each of said outer barbs to longitudinally stop each of said legs.

4. The electrical support stand of claim 1, wherein the insertion portion further includes a plurality of positioning posts extending therefrom, the driver includes a plurality of positioning holes surrounding the transmission slot, and each positioning post is inserted into each corresponding positioning hole.

5. The electromotive supporting shaft according to claim 4, wherein each of the positioning posts is spaced apart from each of the pins.

6. The electromotive strut as claimed in claim 4, wherein each of said positioning posts extends to an end of each of said pins.

7. The electrical support pole of claim 1 further comprising a bearing, wherein the bearing is disposed around the drive screw, a plurality of inner barbs are disposed on an inner edge of each of the pins, and each of the inner barbs and the mating part clamp the bearing together.

8. The motorized support post of claim 1 wherein said drive channel has a plurality of internal teeth on an inner periphery thereof and said driven end has a plurality of external teeth on an outer periphery thereof corresponding to said internal teeth.

9. The motorized support bar of claim 1 wherein said actuator assembly further comprises a movable inner barrel movably received within said second outer barrel and engaging said drive screw, said movable inner barrel having a fixed end exposed from said second outer barrel, said fixed end having a swivel joint.

10. The motorized support post of claim 1 wherein said first outer barrel is provided with a connector at an end thereof remote from said opening, said connector having a connector.