CN116427815A

CN116427815A - Electric support rod

Info

Publication number: CN116427815A
Application number: CN202210000817.3A
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: 2023-07-14

Abstract

The invention relates to an electric supporting rod, which comprises a driving assembly and an actuating assembly, wherein the driving assembly comprises a first outer cylinder and a driver arranged in the first outer cylinder, the first outer cylinder is provided with an opening and is provided with an elastic clamping hook on the inner wall, the driver is provided with a transmission groove, the actuating assembly comprises a second outer cylinder and a transmission screw rod penetrating through the second outer cylinder, the second outer cylinder is provided with a splicing part butted with the opening, the transmission screw rod is provided with a driven end meshed with the transmission groove, the splicing part is extended with a pin encircling the driven end, and the pin is buckled with the elastic clamping hook to longitudinally lock the driving assembly and the actuating assembly; therefore, the structure of the electric supporting rod can be simplified, the electric supporting rod is easy to assemble, and the production cost is reduced.

Description

Electric support rod

Technical Field

The present invention relates to an electric support bar, and more particularly to an electric support bar with simple structure, convenient assembly, and no rotation of an actuating assembly.

Background

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

The electric supporting rod is usually in two sections in the design of the shell, so that the electric motor and the telescopic screw rod are conveniently installed in the two corresponding shell bodies respectively, and then the two shell bodies are assembled to ensure that the electric motor and the telescopic screw rod are in power connection. However, in order to prevent the housing of the telescopic screw from being driven to rotate during operation, the housing is additionally positioned by a fixing member, so that the electric support rod has a complex structure, is not easy to assemble and has high production cost.

Disclosure of Invention

The main object of the present invention is to simplify the structure of an electric support rod, facilitate assembly, and reduce production cost.

In order to achieve the above-mentioned objective, the present invention provides an electric supporting rod, comprising a driving assembly and an actuating assembly, wherein the driving assembly comprises 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 protruded between the opening and the transmission groove on the inner wall of the first outer cylinder, the actuating assembly comprises a second outer cylinder and a transmission screw penetrating the second outer cylinder, one end of the second outer cylinder has an inserting portion, the transmission screw has a driven end penetrating the inserting portion, the inserting portion extends to have a plurality of pins surrounding the driven end, the inserting portion is abutted to the opening, the driven end is engaged with the transmission groove, and each pin is buckled with each elastic hook to lock the driving assembly and the actuating assembly longitudinally.

Optionally, each elastic hook includes a root and an elastic arm, and each root is disposed on the first outer cylinder and connected to each corresponding elastic arm.

Optionally, each spring arm is concavely provided with a hook portion, an outer barb is disposed on an outer edge of each pin, and each hook portion is respectively clamped with each outer barb to longitudinally stop each pin.

Optionally, the plugging portion further extends to form a plurality of positioning posts, the driver is provided with a plurality of positioning holes surrounding the transmission groove, and each positioning post is plugged into each corresponding positioning hole.

Optionally, each of the positioning posts is arranged at intervals with each of the pins.

Optionally, each of the positioning posts extends to an end of each of the pins.

Optionally, the device further comprises a bearing, wherein the bearing is sleeved with the transmission screw, a plurality of inner barbs are arranged on the inner edge of each pin, and the bearing is clamped by the inner barbs and the inserting connection part together.

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

Optionally, the actuating assembly further includes a movable inner cylinder movably accommodated in the second outer cylinder and engaged with the driving 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, a connecting part is arranged at one end of the first outer barrel far away from the opening, and the connecting part is provided with a joint.

The invention also has the following effects: the drive assembly may be secured to the vehicle body or door body by a joint. The actuating component can be fixed on the door body or the car body by the fixing hole of the rotary joint. The bearing is clamped and fixed by the inner inverted hook and the plug-in part at the inner edge of the pin, so that the transmission screw rod can keep the center position. The positioning effect can be achieved by inserting the positioning posts into the corresponding positioning holes, and the phenomenon that the driver drives the transmission screw to rotate and drive the second outer cylinder to rotate is avoided.

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 mating end of the present invention.

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

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

Fig. 10 to 12 are sectional views of states (one) to (three) in which another embodiment of the present invention is used.

In the figure:

10, a driving assembly; 11, a first outer cylinder; 111, opening; 112, a connecting part; 112A, a joint; 113, elastic clamping hooks; 113A, root; 113B, spring arms; 113C, a hook part; a driver; 121, a transmission groove; 121A, internal teeth; 122, positioning holes; an actuation assembly; 21, a second outer cylinder; 211, a plug-in part; 212, pins; 212A, inner barbs; 212B, outer barbs; 213, positioning columns; 22, a transmission screw; 221, a driven end; 221A, external teeth; 23, bearing; 24, a movable inner cylinder; 241, fixed end; 241A, a rotary joint; 241B, fixing holes.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to limit the invention, so that those skilled in the art may better understand the invention and practice it.

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

The driving assembly 10 mainly comprises a first outer cylinder 11 and a driver 12. The first outer cylinder 11 is a hollow cylinder, and has an opening 111 at one end of the first outer cylinder 11, and a connecting portion 112 at an end far from the opening 111. The connection portion 112 has a joint 112A to secure the drive assembly 10 to the vehicle body or door. In the present embodiment, the driver 12 is an electric motor, but the invention is not limited thereto. The driver 12 is accommodated in the first outer cylinder 11, and has a transmission groove 121 at an end of the driver 12 facing the opening 111, and a plurality of (more than two) inner teeth 121A are provided on an inner edge of the transmission groove 121. The inner wall of the first outer cylinder 11 is provided with a plurality of elastic hooks 113 between the opening 111 and the transmission groove 121 of the driver 12.

The actuating assembly 20 mainly comprises a second outer cylinder 21 and a driving screw 22. The second outer tube 21 is a hollow tube, and has a plug portion 211 at one end of the second outer tube 21 corresponding to the opening 111 of the first outer tube 11. The driving screw 22 is inserted into the second outer cylinder 21 and has a driven end 221 inserted out of the insertion portion 211, and a plurality of external teeth 221A engaging each internal tooth 121A are provided on the outer edge of the driven end 221. The socket portion 211 has a plurality of pins 212 longitudinally extending corresponding to the elastic hooks 113, and each pin 212 is disposed around the periphery of the driven end 221. Preferably, the actuator 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 concavely arranged on the inner edge of each pin 212. The inner barbs 212A and the insertion portions 211 clamp and fix the bearing 23 together, thereby maintaining the center position of the drive screw 22.

Further 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 in meshed connection with the driving screw 22, so that the driving screw 22 can drive the movable inner cylinder 24 to perform telescopic movement relative to the second outer cylinder 21. The movable inner cylinder 24 has a fixed end 241 exposed to the second outer cylinder 21. The fixed end 241 is provided with a rotary joint 241A, and the rotary joint 241A is provided with a fixing hole 241B in a penetrating manner to fix 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 plug 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 slot 121 of the driver 12, and each pin 212 is fastened to the corresponding elastic hook 113 to lock the driving assembly 10 and the actuating assembly 20 longitudinally. Thereby, the driving assembly 10 and the actuating assembly 20 can be connected and fixed, and the transmission groove 121 of the driver 12 is in power connection with the driven end 221 of the transmission screw 22, so that the driver 12 drives the transmission screw 22 to rotate to extend and retract the movable inner cylinder 24.

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

In addition, the plug portion 211 of the second outer cylinder 21 further extends to form a plurality of positioning posts 213, and the driver 12 is concavely provided with a plurality of positioning holes 122 surrounding the transmission groove 121. In the present embodiment, the positioning posts 213 are arranged at intervals from the pins 212, but the invention is not limited thereto. The positioning posts 213 are inserted into the corresponding positioning holes 122 to achieve the positioning effect, so that the second outer cylinder 21 of the actuating assembly 20 can be prevented from being driven to rotate together when the driving groove 121 of the driver 12 drives the driving screw 22 to rotate. In the present embodiment, the number of the positioning posts 213 is four, but the present invention is not limited thereto, and for example, the number of the positioning posts 213 may be two, three or more than four, so long as the positioning effect can be achieved without rotation.

Referring to fig. 5 to 9, the assembly of the actuating assembly 20 and the driving assembly 10 is schematically illustrated. Referring to fig. 5 and 6, before assembling the actuating assembly 20 and the driving assembly 10, 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 corresponding positioning holes 122 (as shown in fig. 5), so that the pins 212 are also 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 the corresponding two spring arms 113B up and down (not shown in the drawing), so that each pin 212 can be inserted between the corresponding two sets of elastic hooks 113. Referring to fig. 7 to 9, after the actuating assembly 20 is inserted and positioned, 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 slot 121 of the driver 12, and each positioning post 213 is inserted into 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 by the hook portion 113C of each corresponding two spring arms 113B (as shown in fig. 8 and 9), thereby longitudinally locking the actuating assembly 20 and the driving assembly 10 and completing the assembly.

Referring to fig. 10 to 12, a second embodiment of the present invention is mainly different in that each positioning post 213 extends to the end of each pin 212, such that each pin 212 and the corresponding positioning post 213 and positioning hole 122 are located on the same line. Referring to fig. 10, before the actuating assembly 20 and the driving assembly 10 are assembled, the driven end 221 of the driving screw 22 is aligned with the driving slot 121 of the driver 12, and each positioning post 213 is aligned with the corresponding positioning hole 122, and since the pins 212 and the

corresponding positioning posts

213 and 122 are all located on the same straight line, each pin 212 is also aligned with the corresponding elastic hook 113. Referring to fig. 11 and 12, after the actuating assembly 20 and the driving assembly 10 are assembled, the outer hooks 212B of the pins 212 are blocked by the hooks 113C of the corresponding two spring arms 113B, and the positioning posts 213 at the front end are inserted into the corresponding positioning holes 122. The design of the second embodiment can effectively simplify the whole structure, reduce assembly errors and production cost, and simultaneously can keep the same technical effects as the first embodiment.

The above-described embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention. The protection scope of the invention is subject to the claims.

Claims

1. An electrically powered support bar, comprising:

the driving assembly comprises a first outer barrel and a driver accommodated in the first outer barrel, 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 between the opening and the transmission groove on the inner wall of the first outer barrel; a kind of electronic device with high-pressure air-conditioning system

The actuating assembly comprises a second outer cylinder and a transmission screw rod penetrating through the second outer cylinder, one end of the second outer cylinder is provided with a plug-in part, the transmission screw rod is provided with a driven end penetrating out of the plug-in part, and the plug-in part is extended with a plurality of pins surrounding the driven end;

the driven end is meshed with the transmission groove, and each pin is respectively buckled with each elastic clamping hook to longitudinally lock the driving assembly and the actuating assembly.

2. The motorized prop of claim 1, wherein each of the resilient hooks comprises a root portion and a spring arm, and each root portion is disposed on the first outer cylinder and connected to each corresponding spring arm.

3. The electric support bar as claimed in claim 2, wherein each spring arm is concavely provided with a hook portion, an outer edge of each pin is provided with an outer barb, and each hook portion is respectively clamped with each outer barb to longitudinally stop each pin.

4. The motorized support pole of claim 1, wherein the plug portion further extends a plurality of positioning posts, the driver has a plurality of positioning holes surrounding the transmission slot, and each of the positioning posts is plugged into a corresponding one of the positioning holes.

5. The motorized support pole of claim 4, wherein each of the positioning posts is spaced apart from each of the pins.

6. The motorized support pole of claim 4, wherein each of the positioning posts extends to an end of each of the pins.

7. The motorized support bar of claim 1, further comprising a bearing, wherein the bearing is sleeved with the drive screw, a plurality of inner barbs are provided on an inner edge of each pin, and each inner barb and the insertion portion jointly clamp the bearing.

8. The motorized support bar of claim 1, wherein the inner edge of the drive slot is provided with a plurality of inner teeth and the outer edge of the driven end is provided with a plurality of outer teeth corresponding to each of the inner teeth.

9. The motorized strut as in claim 1, wherein the actuating assembly further comprises a movable inner barrel movably received within the second outer barrel and engaging the drive screw, the movable inner barrel having a fixed end exposed to the second outer barrel, the fixed end being provided with a swivel joint.

10. The motorized support pole of claim 1, wherein an end of the first outer barrel remote from the opening is provided with a connecting portion having a joint.