Electric tail door supporting rod
By using a locking and slotting mechanism and an automatic lubrication system, the problem of potential damage to the electric tailgate strut during adjustment is solved, enabling convenient adjustment and automatic lubrication, thus improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-10
AI Technical Summary
The existing electric tailgate strut requires adjusting the tightness of the screw during adjustment, and the threaded connection may damage the strut, making it inconvenient to use.
The system employs a locking block and slot mechanism for rapid adjustment, and combines a liquid reservoir and a one-way valve for automatic lubrication, preventing damage and abnormal noise.
It improves ease of use and durability, allows for quick adjustment of the tailgate angle via a locking mechanism, and features automatic lubrication to reduce friction and noise.
Smart Images

Figure CN223984386U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric tailgate support technology, specifically an electric tailgate support. Background Technology
[0002] The power tailgate strut plays a crucial role in the power tailgate system. It not only enables automatic opening and closing of the tailgate but also enhances the vehicle's convenience, technological sophistication, overall quality, and safety. As automotive technology continues to advance, the performance of the power tailgate strut will continue to improve, providing car owners with a more convenient, safe, and comfortable user experience.
[0003] The existing electric tailgate support rods, due to the lack of a limiting mechanism, only have two states: fully retracted and fully open. As a result, the tailgate angle cannot be adjusted according to needs, leading to poor adaptability.
[0004] To address the aforementioned shortcomings, CN207813354U discloses a structure for an electric tailgate support rod for automobiles. This structure features a movable collar and a fixed collar connected by a limiting rope, which limit the range of motion of the movable collar. This allows for adjustment of the opening width of the electric tailgate support rod, facilitating user operation. A brush is used to apply oil to the movable collar to prevent rusting, reduce resistance during movement, and extend the service life of the electric tailgate support rod. This device has a relatively simple structure and low cost, making it suitable for widespread use.
[0005] In actual use of the above device, although the opening range of the electric tailgate support rod can be adjusted by the limit rope, the adjustment requires adjusting the tension screw. The tension screw is connected by threads, and when fixing with the tension screw, the tension screw needs to squeeze the electric tailgate support rod, which may cause damage to the rod, thus making it inconvenient to use.
[0006] Therefore, we proposed an electric tailgate strut that can effectively solve the above problems. Utility Model Content
[0007] The purpose of this utility model is to provide an electric tailgate support rod to solve the problem mentioned in the background art that the current market requires adjusting the tension screw during adjustment. The tension screw is connected by threads, and when fixing it with the tension screw, the tension screw needs to squeeze the electric tailgate support rod, which may cause damage to the rod and make it inconvenient to use.
[0008] To achieve the above objectives, this utility model provides the following technical solution: an electric tailgate support rod, comprising a first rod, wherein a second rod is slidably connected to the bottom of the first rod;
[0009] A retaining ring is slidably connected to the first rod, and a first pull rope is connected to the bottom left end of the retaining ring. The bottom of the first pull rope is connected to the bottom of the second rod. A retaining block is slidably connected to the right side of the retaining ring, and the left end of the retaining block extends into the interior of the retaining groove to form a locking mechanism. The retaining grooves are evenly spaced on the right side of the first rod. A first spring is connected to the right side of the retaining block, and the right end of the first spring is connected to the interior of the retaining ring. A second pull rope is connected to the right end of the retaining block, and the right end of the second pull rope extends out of the interior of the retaining ring to form a sliding mechanism.
[0010] Preferably, the first spring is provided in two sets, and the two sets of the first spring are symmetrically arranged, and the middle of the two sets of the first spring contains a second pull rope.
[0011] Preferably, a connecting ring is fixed to the bottom of the first rod, and a push rod is slidably connected inside the connecting ring. A top rod is vertically attached to the bottom of the push rod, and the bottom of the top rod is fixed to the second rod.
[0012] Preferably, the top of the push rod extends into the interior of the air storage cylinder to form a compression mechanism, and the air storage cylinder is nested inside the connecting ring.
[0013] Preferably, a second spring is nested at the top of the push rod, and the top of the second spring is connected inside the connecting ring.
[0014] Preferably, the top of the gas storage cylinder is connected to the liquid storage tank via a pipe, and the liquid storage tank is located inside the connecting ring and contains lubricating fluid.
[0015] Preferably, the bottom of the liquid storage tank is connected to a delivery pipe, the top of the delivery pipe is fixed to the bottom of the connecting ring, and a one-way valve is fixed inside the delivery pipe.
[0016] Compared with the prior art, the beneficial effects of this utility model are: the electric tailgate support rod is easy to use and can be automatically lubricated. By moving the locking block, damage to the first rod is avoided, thereby improving the convenience of use. Furthermore, through the use of the delivery pipe, lubricant can be sprayed onto the second rod, thereby achieving the function of automatic lubrication. The specific details are as follows:
[0017] (1) A locking block is provided. By moving the locking block, the locking block is disengaged from the locking slot, and then the locking ring can be moved to adjust its position. By engaging the locking block with the locking slot, the position of the locking ring can be quickly adjusted, thereby reducing damage to the first rod and improving the ease of use.
[0018] (2) A conveying pipe is provided. The push rod is moved by the push rod, so that the gas can be squeezed to deliver the lubricating liquid into the conveying pipe. The lubricating liquid can be brought to the second rod through the conveying pipe, thereby achieving the function of automatic lubrication.
[0019] (3) A second spring is provided, which is nested and connected to the top of the push rod, and the top of the second spring is connected to the inside of the connecting ring, so that the second spring can limit the push rod, thereby improving the ease of push rod reset;
[0020] (4) A one-way valve is provided, and a delivery pipe is connected to the bottom of the storage tank. The top of the delivery pipe is fixed to the bottom of the connecting ring, and a one-way valve is fixed inside the delivery pipe. This allows the one-way valve to seal the lubricant and prevent the lubricant from dripping.
[0021] (5) An air storage cylinder is provided. The top of the push rod extends into the interior of the air storage cylinder to form a compression mechanism. The air storage cylinder is nested inside the connecting ring, so that the gas in the air storage cylinder can compress the lubricating fluid for delivery, thereby facilitating the spraying of the lubricating fluid. Attached Figure Description
[0022] Figure 1 This is a front view structural diagram of the present invention;
[0023] Figure 2 This is a side view of the structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the structure of the second member of this utility model after it has been moved;
[0025] Figure 4 This is a schematic diagram of the connection structure between the card block and the card slot of this utility model;
[0026] Figure 5 This is a schematic diagram of the connection structure between the push rod and the gas storage cylinder of this utility model;
[0027] Figure 6 This is a schematic diagram of the connection structure between the delivery pipe and the one-way valve of this utility model.
[0028] In the diagram: 1. First rod; 2. Second rod; 3. Clamping ring; 4. First pull rope; 5. Clamping block; 6. Clamping groove; 7. First spring; 8. Second pull rope; 9. Top rod; 10. Connecting ring; 11. Push rod; 12. Gas storage tank; 13. Second spring; 14. Liquid storage tank; 15. Delivery pipe; 16. One-way valve. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Example 1: An electric tailgate support rod solves the problem that existing adjustments require adjusting a tension screw, which is threaded and can cause damage to the rod, making it inconvenient to use. The method utilizes a locking block 5 to quickly adjust the tailgate angle. The following is disclosed:
[0031] The bottom of the first rod 1 is slidably connected to the second rod 2; a retaining ring 3 is slidably connected to the first rod 1, and the bottom left end of the retaining ring 3 is connected to the first pull rope 4, and the bottom of the first pull rope 4 is connected to the bottom of the second rod 2. A retaining block 5 is slidably connected to the right side of the retaining ring 3, and the left end of the retaining block 5 extends into the interior of the retaining groove 6 to form a retaining mechanism. The retaining groove 6 is equally spaced on the right side of the first rod 1. A first spring 7 is connected to the right side of the retaining block 5, and the right end of the first spring 7 is connected to the interior of the retaining ring 3. A second pull rope 8 is connected to the right end of the retaining block 5, and the right end of the second pull rope 8 extends out of the interior of the retaining ring 3 to form a sliding mechanism. There are two sets of first springs 7, and the two sets of first springs 7 are symmetrically arranged. The middle of the two sets of first springs 7 contains the second pull rope 8.
[0032] refer to Figures 1 to 4 When the driver issues an open / close command via an in-vehicle button, remote key, or sensor on the tailgate, the vehicle control system activates the motor inside the electric tailgate strut. The motor drives the second rod 2 to extend and retract inside the first rod 1 through a transmission mechanism, thereby pushing or pulling the tailgate to automatically open or close it. When the tailgate angle needs to be adjusted, the second pull rope 8 is pulled, causing the second pull rope 8 to move and drive the locking block 5 to move. This causes the locking block 5 to disengage from the locking groove 6, and the movement of the locking block 5 compresses the first spring 7. Then, the locking ring 3 is pulled, allowing it to slide on the first rod 1. After the locking ring 3 moves to its position, the force of the first spring 7 pushes the locking block 5 into the locking groove 6, thus fixing the position of the locking ring 3 on the first rod 1. The locking ring 3 can then control the extension and retraction length of the second rod 2 via the first pull rope 4, thereby achieving the purpose of adjusting the tailgate angle and improving ease of use.
[0033] Example 2: An electric tailgate strut solves the problem that existing struts lack automatic lubrication, which leads to abnormal noise after long-term use. The use of a liquid reservoir 14 achieves automatic lubrication, thus preventing abnormal noise. The following is disclosed:
[0034] The bottom of the first rod 1 is fixed with a connecting ring 10, and a push rod 11 is slidably connected inside the connecting ring 10. The bottom of the push rod 11 is vertically connected with a top rod 9, and the bottom of the top rod 9 is fixed on the second rod 2. The top of the push rod 11 extends into the interior of the air storage cylinder 12 to form a compression mechanism, and the air storage cylinder 12 is nested inside the connecting ring 10. The top of the push rod 11 is nested and connected with a second spring 13, and the top of the second spring 13 is connected inside the connecting ring 10. The top of the air storage cylinder 12 is connected to the liquid storage tank 14 through a pipe, and the liquid storage tank 14 is opened inside the connecting ring 10 and contains lubricating fluid.
[0035] refer to Figure 1 , Figure 5 and Figure 6 The second rod 2 is reset, causing the push rod 9 to move. This push rod 9 slides into the connecting ring 10, and the movement of the push rod 9 compresses the push rod 11, allowing the push rod 11 to extend into the air storage cylinder 12. The movement of the push rod 11 also compresses the second spring 13, causing the second spring 13 to be compressed. This compresses the gas in the air storage cylinder 12 and delivers it into the liquid storage tank 14. The liquid storage tank 14, compressed by the gas, delivers lubricating fluid into the delivery pipe 15. The delivery pipe 15 sprays lubricating fluid onto the surface of the second rod 2, thus achieving a lubricating effect. After the push rod 9 releases its pressure on the push rod 11, the force of the second spring 13 pushes the push rod 11 to reset, causing the push rod 11 to disengage from the air storage cylinder 12. This allows the air storage cylinder 12 to refill with gas, facilitating the next compression.
[0036] Example 3: An electric tailgate strut solves the problem of lubricant dripping in Example 2. The use of a one-way valve 16 seals the lubricant, preventing dripping. The following is disclosed:
[0037] The bottom of the storage tank 14 is connected to a delivery pipe 15, and the top of the delivery pipe 15 is fixed to the bottom of the connecting ring 10. A one-way valve 16 is fixed inside the delivery pipe 15.
[0038] refer to Figure 1 , Figure 5 and Figure 6When the lubricant is not compressed by gas, the one-way valve 16 can seal the lubricant inside the delivery pipe 15. When compressed by gas, the lubricant will squeeze the one-way valve 16, thereby opening the one-way valve 16 and facilitating the spraying out of the lubricant. The use of the one-way valve 16 can prevent the lubricant from overflowing from the inside of the delivery pipe 15, thereby improving the sealing performance.
[0039] Working principle: When using this type of electric tailgate strut, first, refer to... Figures 1 to 4 When the driver issues an open / close command via an in-vehicle button, remote key, or sensor on the tailgate, the vehicle control system activates the motor inside the electric tailgate strut. The motor drives the second rod 2 to extend and retract inside the first rod 1 via a transmission mechanism. By pulling the second pull rope 8, the second pull rope 8 moves, causing the locking block 5 to move, thereby compressing the first spring 7. Then, pulling the locking ring 3 allows the locking ring 3 to slide on the first rod 1. After the locking ring 3 moves to its position, the force of the first spring 7 pushes the locking block 5 into the locking groove 6, thereby fixing the position of the locking ring 3 on the first rod 1. The locking ring 3 can then control the extension and retraction length of the second rod 2 via the first pull rope 4, thereby adjusting the tailgate angle and improving ease of use.
[0040] refer to Figure 1 , Figure 5 and Figure 6 The second rod 2 is reset, which drives the push rod 9 to move, causing the push rod 9 to slide into the connecting ring 10. The movement of the push rod 9 will squeeze the push rod 11, and then the gas in the gas storage cylinder 12 will be squeezed and transported into the liquid storage tank 14. The liquid storage tank 14 will be squeezed by the gas and transport the lubricant into the delivery pipe 15. The lubricant can be sprayed onto the surface of the second rod 2 through the delivery pipe 15, thereby achieving the lubrication effect. After the push rod 9 is released from the squeeze of the push rod 11, the push rod 11 will be released from the gas storage cylinder 12, so that the gas storage cylinder 12 will be refilled with gas, which will facilitate the next squeeze.
[0041] refer to Figure 1 , Figure 5 and Figure 6 When the lubricant is not compressed by gas, the one-way valve 16 can seal the lubricant inside the delivery pipe 15. However, when compressed by gas, the lubricant can be sprayed out. The use of the one-way valve 16 can prevent the lubricant from overflowing from the inside of the delivery pipe 15, thereby improving the sealing performance.
[0042] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An electric tail gate stay rod, comprising a first rod (1), the bottom of the first rod (1) is slidably connected with a second rod (2); characterized in that A snap ring (3) is slidably connected on the first rod (1), the left end bottom of the snap ring (3) is connected with a first pull rope (4), and the bottom of the first pull rope (4) is connected to the bottom of the second rod (2), the right side of the snap ring (3) is slidably connected with a clamping block (5), the left end of the clamping block (5) extends into the inside of a clamping groove (6) to constitute a clamping mechanism, and the clamping groove (6) is equidistantly provided on the right side of the first rod (1), the right side of the clamping block (5) is connected with a first spring (7), the right end of the first spring (7) is connected to the inside of the snap ring (3), the right end of the clamping block (5) is connected with a second pull rope (8), and the right end of the second pull rope (8) extends out of the inside of the snap ring (3) to constitute a sliding mechanism.
2. The electric tailgate stay bar according to claim 1, characterized in that: The first spring (7) is provided in two groups, the two groups of first springs (7) are symmetrically arranged, and the middle portions of the two groups of first springs (7) contain the second pull rope (8).
3. The electric tailgate stay bar of claim 1, wherein: The bottom of the first rod (1) is fixedly connected with a connecting ring (10), the inside of the connecting ring (10) is slidably connected with a push rod (11), the bottom of the push rod (11) is vertically provided with a top rod (9), and the bottom of the top rod (9) is fixed to the second rod (2).
4. The electric tailgate stay bar according to claim 3, characterized in that: The top of the push rod (11) extends into the inside of an air cylinder (12) to constitute an extrusion mechanism, and the air cylinder (12) is nested in the inside of the connecting ring (10).
5. The electric tailgate stay bar according to claim 4, characterized in that: The top of the push rod (11) is nested with a second spring (13), and the top of the second spring (13) is connected to the inside of the connecting ring (10).
6. The electric tailgate stay bar of claim 4, wherein: The top of the air cylinder (12) is connected with a liquid storage tank (14) through a pipeline, the liquid storage tank (14) is provided in the inside of the connecting ring (10), and the liquid storage tank (14) contains lubricating liquid.
7. The electric tailgate stay bar according to claim 6, characterized in that: The bottom of the liquid storage tank (14) is connected with a delivery pipe (15), the top of the delivery pipe (15) is fixed to the bottom of the connecting ring (10), and the inside of the delivery pipe (15) is fixedly provided with a check valve (16).
Citation Information
Patent Citations
Car is with electronic tail -gate brace bar structure
CN207813354U