Electrically powered support pole

Abstract

The application relates to an electric supporting rod, which comprises a driving assembly and an actuating assembly. The driving assembly comprises a first outer cylinder and a driver arranged in the first outer cylinder. The first outer cylinder has an opening and an elastic hook arranged on the inner wall. The driver has a transmission groove. The actuating assembly comprises a second outer cylinder and a transmission screw arranged in the second outer cylinder. The second outer cylinder has a plug-in part matched with the opening. The transmission screw has a driven end matched with the transmission groove. The plug-in part extends a connecting pin around the driven end. The connecting pin is buckled with the elastic hook to longitudinally lock the driving assembly and the actuating assembly. Thus, 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

Technical Field

[0001] This invention relates to an electric support rod, and more particularly to an electric support rod that is simple in structure, easy to assemble, and does not cause the actuation components to rotate. Background Technology

[0002] With the rapid development of the automotive industry, electric doors have become increasingly widely used due to their convenience. A typical electric door is supported by electric support rods on both sides, and an internal electric motor adjusts the length of a telescopic screw within these rods to open or close the door.

[0003] Electric support rods typically employ a two-section design for their housings. This allows for the separate installation of the electric motor and the telescopic screw into their respective housings, which are then joined together to enable power connection between the motor and the screw. However, to prevent the telescopic screw's housing from rotating during operation, an additional fixing component is typically used for positioning. This results in a complex structure for the electric support rod, making it difficult to assemble and increasing production costs. Summary of the Invention

[0004] The main objective of this invention is to simplify the structure of the electric support rod for easy assembly and reduce production costs.

[0005] To achieve the above objectives, the present invention provides an electric support rod, including a drive assembly and an actuation assembly. The drive assembly includes a first outer cylinder and a driver disposed within the first outer cylinder. One end of the first outer cylinder has an opening, and the end of the driver facing the opening has a transmission groove. The inner wall of the first outer cylinder has a plurality of elastic hooks protruding between the opening and the transmission groove. The actuation assembly includes a second outer cylinder and a transmission screw passing through the second outer cylinder. One end of the second outer cylinder has a plug-in portion, and the transmission screw has a driven end extending out of the plug-in portion. The plug-in portion extends to surround the driven end with a plurality of pins. The plug-in portion engages with the opening, the driven end engages with the transmission groove, and each pin engages with each elastic hook to longitudinally lock the drive assembly and the actuation assembly.

[0006] Optionally, each of the elastic hooks includes a root and a spring arm, with each root disposed on the first outer cylinder and connected to the corresponding spring arm.

[0007] Optionally, each of the spring arms is recessed with a hook portion, and the outer edge of each of the connecting feet is provided with an outer barb. Each hook portion engages with the outer barb and longitudinally stops each of the connecting feet.

[0008] Optionally, the insertion portion further extends with a plurality of positioning posts, and the driver is provided with a plurality of positioning holes surrounding the transmission groove, with each positioning post being inserted into a corresponding positioning hole.

[0009] Optionally, each of the positioning posts is arranged at intervals with each of the connectors.

[0010] Optionally, each of the positioning posts extends to the end of each of the connectors.

[0011] Optionally, it also includes a bearing, which is fitted onto the transmission screw, and each of the connectors has a plurality of inner barbs on its inner edge, and each of the inner barbs and the insertion part together clamp the bearing.

[0012] 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 each of the internal teeth.

[0013] Optionally, the actuation assembly further includes a movable inner cylinder, which is movably housed within the second outer cylinder and engages with the transmission screw. The movable inner cylinder has a fixed end exposed outside the second outer cylinder, and the fixed end is provided with a rotary joint.

[0014] Optionally, the first outer cylinder has a connecting portion at the end away from the opening, and the connecting portion has a connector.

[0015] This invention also has the following advantages: the drive assembly can be fixed to the vehicle body or door body via the connector. The actuation assembly can be fixed to the door body or vehicle body via the fixing hole of the rotary joint. The bearing can be held and fixed by the inner barb of the inner edge of the connector and the insertion part, which can keep the transmission screw in a centered position. The positioning effect can be achieved by inserting the positioning pin into the corresponding positioning hole, and the second outer cylinder can be prevented from rotating along with the drive screw when the driver drives it. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention.

[0017] Figure 2 This is an exploded perspective view of the present invention.

[0018] Figure 3 This is a partially enlarged view of the connector end of the present invention.

[0019] Figure 4 This is a partial enlarged view of the opening of the present invention.

[0020] Figures 5 to 9 These are cross-sectional views of the present invention in use states (I) to (V).

[0021] Figures 10 to 12 This is a cross-sectional view of another embodiment of the present invention in usage states (a) to (b).

[0022] In the picture:

[0023] 10: Drive assembly; 11: First outer cylinder; 111: Opening; 112: Connecting part; 112A: Connector; 113: Elastic hook; 113A: Root; 113B: Spring arm; 113C: Hook; 12: Driver; 121: Transmission groove; 121A: Internal tooth; 122: Positioning hole; 20: Actuating assembly; 21: Second outer cylinder; 211: Insertion part; 212: Connector; 212A: Inner barb; 212B: Outer barb; 213: Positioning pin; 22: Transmission screw; 221: Driven end; 221A: External tooth; 23: Bearing; 24: Movable inner cylinder; 241: Fixed end; 241A: Rotary joint; 241B: Fixed hole. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0025] This invention provides an electric support rod for opening or closing electric doors of automobiles and for providing support. Please refer to... Figures 1 to 4 As shown, the electric support rod mainly includes a drive assembly 10 and a moving assembly 20.

[0026] The drive assembly 10 mainly includes a first outer cylinder 11 and a driver 12. The first outer cylinder 11 is a hollow cylinder with an opening 111 at one end and a connecting portion 112 at the end away from the opening 111. The connecting portion 112 has a connector 112A to fix the drive assembly 10 to a vehicle body or door. In this embodiment, the driver 12 is an electric motor, but the invention is not limited thereto. The driver 12 is housed within the first outer cylinder 11 and has a transmission groove 121 at the end of the driver 12 facing the opening 111, and the inner edge of the transmission groove 121 is provided with a plurality of (two or more) internal teeth 121A. The inner wall of the first outer cylinder 11 has a plurality of elastic hooks 113 protruding between the opening 111 and the transmission groove 121 of the driver 12.

[0027] The actuation assembly 20 mainly includes a second outer cylinder 21 and a transmission screw 22. The second outer cylinder 21 is a hollow cylinder, and one end of the second outer cylinder 21 has a plug-in portion 211 corresponding to the opening 111 of the first outer cylinder 11. The transmission screw 22 passes through the second outer cylinder 21 and has a driven end 221 extending out of the plug-in portion 211. The outer edge of the driven end 221 is provided with a plurality of external teeth 221A that engage with the internal teeth 121A. The plug-in portion 211 extends longitudinally with a plurality of feet 212 corresponding to the elastic hooks 113, and each foot 212 is arranged around the periphery of the driven end 221. Preferably, the actuation assembly 20 also includes a bearing 23. The bearing 23 is sleeved on the transmission screw 22, and a plurality of internal barbs 212A are recessed on the inner edge of each foot 212. Each inner barb 212A and the insertion part 211 together clamp and fix the bearing 23, thereby maintaining the center position of the transmission screw 22.

[0028] Further, the actuation assembly 20 also includes a movable inner cylinder 24. The movable inner cylinder 24 is movably housed within the second outer cylinder 21, and is engaged with the transmission screw 22, allowing the transmission screw 22 to drive the movable inner cylinder 24 to extend and retract relative to the second outer cylinder 21. The movable inner cylinder 24 has a fixed end 241 exposed outside the second outer cylinder 21. The fixed end 241 is provided with a rotary joint 241A, and the rotary joint 241A has a fixing hole 241B through it to fix the actuation assembly 20 to the door or vehicle body.

[0029] Please see Figure 1 and Figure 2 The actuation assembly 20 and the drive assembly 10 are connected together. Specifically, the insertion portion 211 of the second outer cylinder 21 is connected to the opening 111 of the first outer cylinder 11, so that the driven end 221 of the transmission screw 22 can engage in the transmission groove 121 of the driver 12, and each pin 212 is engaged with the corresponding elastic hook 113 to longitudinally lock the drive assembly 10 and the actuation assembly 20. This enables the drive assembly 10 and the actuation assembly 20 to be connected and fixed, and allows the transmission groove 121 of the driver 12 and the driven end 221 of the transmission screw 22 to be poweredly connected, so that the driver 12 drives the transmission screw 22 to rotate to extend and retract the movable inner cylinder 24.

[0030] Further explanation: Each elastic hook 113 includes a root portion 113A and a spring arm 113B. Each root portion 113A is disposed on the inner wall of the first outer cylinder 11 and is respectively connected to the corresponding spring arm 113B. Each spring arm 113B is recessed with a hook portion 113C. Each foot 212 has an outer barb 212B on its outer edge. Each hook portion 113C is engaged with the corresponding outer barb 212B to longitudinally stop the foot 212. In this embodiment, each elastic hook 113 is in a group of two to be engaged with a corresponding foot 212 (i.e., the number of elastic hooks 113 is twice the number of feet 212), and the two elastic hooks 113 in each group are arranged opposite to each other, so that the hook portions 113C of the two spring arms 113B are engaged together in the corresponding outer barb 212B of the foot 212. However, the present invention is not limited thereto. For example, the number of elastic hooks 113 can be the same as the number of pins 212, as long as they can effectively play the role of locking and stopping.

[0031] Furthermore, the insertion portion 211 of the second outer cylinder 21 extends with a plurality of positioning posts 213, and the driver 12 is recessed with a plurality of positioning holes 122 surrounding the transmission groove 121. In this embodiment, each positioning post 213 is arranged at intervals with each connector 212, but the present invention is not limited thereto. Each positioning post 213 is inserted into the corresponding positioning hole 122 to achieve the positioning effect, thereby preventing the transmission groove 121 of the driver 12 from driving the transmission screw 22 to rotate along with the second outer cylinder 21 of the actuation assembly 20. In this embodiment, the number of positioning posts 213 is four, but the present invention is not limited thereto. For example, the number of positioning posts 213 can also be two, three, or more than four, as long as they can achieve the effect of positioning without rotation.

[0032] Please see Figures 5 to 9 The diagram shown illustrates the connection between the actuation component 20 and the drive component 10. Please refer to [the relevant documentation / reference]. Figure 5 and Figure 6 Before assembling the actuation assembly 20 and the drive assembly 10, the driven end 221 of the transmission screw 22 must be aligned with the transmission groove 121 of the driver 12, and each positioning pin 213 must be aligned with the corresponding positioning hole 122 (e.g., Figure 5 As shown), so that each pin 212 is also aligned with the corresponding elastic latch 113 (as shown). Figure 6 (As shown). Next, when the connector 211 is inserted into the opening 111, each pin 212 will push the corresponding two spring arms 113B upwards and downwards (not shown in the attached diagram), so that each pin 212 can be inserted between the corresponding two sets of elastic latches 113. Then refer to... Figures 7 to 9When the actuation assembly 20 is inserted into the positioning position, the insertion part 211 of the second outer cylinder 21 engages in the opening 111 of the first outer cylinder 11. At this time, the driven end 221 of the transmission screw 22 meshes in the transmission groove 121 of the driver 12, and each positioning pin 213 is inserted into the corresponding positioning hole 122 to prevent the second outer cylinder 21 from rotating (e.g., Figure 7 As shown), the outer barbs 212B of each pin 212 are stopped by the hooks 113C of the corresponding two spring arms 113B (as shown). Figure 8 and Figure 9 (as shown), thereby longitudinally locking the actuator 20 and the drive assembly 10 and completing the assembly.

[0033] Please continue reading. Figures 10 to 12 As shown, the second embodiment of the present invention differs primarily in that each positioning post 213 extends to the end of each pin 212, such that each pin 212, the corresponding positioning post 213, and the positioning hole 122 are all located on the same straight line. Please refer to [the previous text]. Figure 10 Before assembling the actuation assembly 20 and the drive assembly 10, the driven end 221 of the transmission screw 22 is aligned with the transmission groove 121 of the driver 12, and each positioning pin 213 is aligned with its corresponding positioning hole 122. Since the pins 212, the corresponding positioning pins 213, and the positioning holes 122 are all on the same straight line, each pin 212 is also aligned with its corresponding elastic latch 113. (See next...) Figure 11 and Figure 12 After the actuation component 20 and the drive component 10 are assembled, the outer barbs 212B of each pin 212 are stopped by the hooks 113C of the corresponding two spring arms 113B, and at the same time, the positioning pins 213 at the front end are also inserted into the corresponding positioning holes 122. This second embodiment effectively simplifies the overall structure, reduces assembly errors, and lowers production costs, while maintaining the same technical effects as the first embodiment.

[0034] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. An electric support rod, characterized in that, include: A drive assembly includes a first outer cylinder and a driver housed within the first outer cylinder. One end of the first outer cylinder has an opening, and the end of the driver facing the opening has a transmission groove. The driver is provided with a plurality of positioning holes surrounding the transmission groove. The inner wall of the first outer cylinder is provided with a plurality of resilient hooks protruding between the opening and the transmission groove. A moving assembly includes a second outer cylinder and a transmission screw passing through the second outer cylinder. One end of the second outer cylinder has a plug-in portion, and the transmission screw has a driven end extending out of the plug-in portion. The plug-in portion extends with a plurality of pins and a plurality of positioning pins surrounding the driven end. A bearing is provided, wherein the transmission screw is sleeved on the bearing, and the inner edge of each of the connecting legs is provided with a plurality of inner barbs, and each of the inner barbs and the insertion part together clamp the bearing; The insertion portion engages with the opening, the driven end meshes with the transmission groove, and each of the pins is respectively fastened to each of the elastic hooks to longitudinally lock the drive assembly and the actuation assembly. Each of the positioning pins is respectively inserted into the corresponding positioning holes to radially restrict the drive assembly and the actuation assembly. Each of the positioning pins extends to the end of each of the pins, and each of the pins and the corresponding positioning pins and positioning holes are located on the same straight line.

2. The electric support rod as described in claim 1, characterized in that, Each of the elastic hooks includes a root and a spring arm, with each root disposed on the first outer cylinder and connected to the corresponding spring arm.

3. The electric support rod as described in claim 2, characterized in that, Each of the spring arms is recessed with a hook portion, and each of the connecting feet has an outer barb on its outer edge. Each hook portion engages with the outer barb and longitudinally stops each of the connecting feet.

4. The electric support rod as described in claim 1, characterized in that, Each of the positioning posts is arranged at intervals with each of the connectors.

5. The electric support rod as described in claim 1, characterized in that, 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 each of the internal teeth.

6. The electric support rod as described in claim 1, characterized in that, The actuation assembly further includes a movable inner cylinder, which is movably housed within the second outer cylinder and engages with the transmission screw. The movable inner cylinder has a fixed end exposed outside the second outer cylinder, and the fixed end is provided with a rotary joint.

7. The electric support rod as described in claim 1, characterized in that, The first outer cylinder has a connecting part at the end away from the opening, and the connecting part has a connector.

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