Angle adjusting air spring device for controlling side-opening back door of passenger car

Abstract

The invention discloses an angle adjusting air spring device for controlling a side-opening back door of a passenger car, and belongs to the technical field of air springs. Aiming at the problems of dust invasion, insufficient lubrication and incapability of braking at any angle in the prior art, two ends of a gas spring are respectively connected with rotating components, each rotating component consists of a U-shaped seat, a fixed seat, a rotating ball and a fixed column, and an arc-shaped plate is additionally arranged on the outer wall of each fixed column to continuously shield an avoiding groove of the corresponding fixed seat to form a physical protective barrier; a lubricating structure with a storage cavity is arranged in the fixed seat, a movable plate is linked with a sealing plate to control quantitative supply of lubricating oil to a rotating cavity through a liquid leakage hole, and automatic filling is achieved through mechanical linkage of an arc-shaped block and a poke rod when an arc-shaped plate rotates; and the braking structure adopts a meshing mechanism of an arc-shaped rack and an electromagnetic driving latch. The device effectively solves the technical problems of dust protection, automatic lubrication and angle braking, and is suitable for stable opening and closing control of the side-opening back door of the passenger car.

Description

Technical Field

[0001] The present invention relates to the technical field of gas springs, and in particular to an angle-adjustable gas spring device for controlling a side-opening tailgate of a passenger vehicle. Background Art

[0002] In the passenger car sector, side-opening tailgates are a common opening method used in a wide range of vehicle models. To achieve smooth opening and closing of the tailgate, stepless limiters, stepped gas springs, and friction gas springs are commonly used.

[0003] 1. Of the three currently used products, the stepless limiter is more expensive and has too many components, which can easily cause vibration and noise. The opening and closing operating forces of the stepped gas spring and friction gas spring cannot be effectively balanced. The operating force is too low to meet the slope limit (the tailgate automatically opens and closes on uphill and downhill slopes). Even if the limit is met, the opening and closing force is too high, making operation uncomfortable.

[0004] 2. Since the rotating components inside the gas spring are in direct contact with the outside world during rotation, dust and debris can easily enter the rotating components, causing them to rotate poorly or even cause malfunction. This not only affects the normal use of the tailgate but may also shorten the service life of the gas spring.

[0005] 3. During long-term rotation, the rotating components are prone to wear and seizure due to lack of effective lubrication. This not only increases the operating resistance of the gas spring device, but may also cause damage to the rotating components, thereby affecting the opening and closing performance of the tailgate.

[0006] In response to the above problems, the present invention document proposes an angle-adjustable gas spring device for controlling the side-opening tailgate of a passenger car. Summary of the Invention

[0007] The purpose of the present invention is to solve the shortcomings of the existing gap between the fixing seat and the gas spring, which is prone to dust accumulation and affects the smooth rotation of the two, cannot automatically add lubricating oil, and cannot control the tailgate to stop at any angle. A gas spring device for controlling the side opening of the tailgate of a passenger car is proposed.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] An angle-adjustable gas spring device for controlling a side-opening tailgate of a passenger vehicle comprises a gas spring and two rotating members, wherein the two rotating members are respectively rotatably connected to a piston rod and a base end of the gas spring;

[0010] Each of the rotating components includes a U-shaped seat, a fixed seat, a rotating ball and a fixed column. The rotating ball is rotatably arranged in the fixed seat. The fixed column is fixed to one side of the rotating ball and is respectively connected to both ends of the gas spring.

[0011] A protective structure is provided in the fixed seat, including a lubrication structure and a rotating cavity. The rotating ball is arranged in the rotating cavity. The lubrication structure includes a storage cavity, a leakage hole, a closing plate and a movable plate. The storage cavity is connected to the rotating cavity through the leakage hole. The closing plate is movably provided to close the leakage hole. The movable plate is fixedly connected to the closing plate and extends to the outside of the fixed seat.

[0012] A clearance groove is provided on one side of the fixing seat, and a fixed sleeve on the outer wall of the fixing column is provided with an arc plate, which is slidably matched with the outer wall of the fixing seat to continuously cover the clearance groove when the fixing column rotates.

[0013] In one possible design, the lubrication structure further includes a plurality of through holes provided in the closing plate. When the movable plate drives the closing plate to move so that the through holes are aligned with the leakage holes, the lubricating oil in the storage chamber is injected into the rotating chamber through the through holes and the leakage holes.

[0014] In one possible design, the lubrication structure also includes a plurality of arc blocks fixed on the outer wall of the arc plate, a rectangular hole is provided in the movable plate, a first magnet and a fixed first electromagnet are slidingly arranged in the rectangular hole, the first electromagnet and the first magnet generate a repulsive force and push the toggle rod to close to the inner wall of the rectangular hole, and the toggle rod cooperates with the arc blocks to drive the movable plate to move when the arc plate rotates.

[0015] In one possible design, the movable plate is provided with a trapezoidal groove, a trapezoidal plate is slidably connected to one side of the fixed seat, the inclined surface of the trapezoidal plate cooperates with the trapezoidal groove, and a load-bearing block is provided on the top of the trapezoidal plate. When the first electromagnet is powered off, the load-bearing block drives the trapezoidal plate to move downward and pushes the movable plate to reset and close the leakage hole through the trapezoidal groove.

[0016] In a possible design, a protective shell is fixed on one side of the fixing seat, the movable plate extends into the protective shell, a limiting groove is provided at the bottom of the protective shell, and the outer wall fixing sleeve of the toggle rod is provided with a sliding seat that slides with the limiting groove.

[0017] In one possible design, a braking structure is also included, which includes an arc-shaped rack fixed to the bottom of the arc-shaped plate, a load-bearing plate fixed to one side of the fixed seat, and a load-bearing seat slidably arranged on the inclined surface. The top of the load-bearing seat is provided with a latch that engages with the arc-shaped rack. A second magnet and a second electromagnet are provided between the load-bearing seat and the limiting back plate. When the second electromagnet is energized, the latch is driven to engage with the arc-shaped rack for braking.

[0018] In a possible design, the top of the storage chamber is connected to a liquid injection nozzle, and the top end of the liquid injection nozzle is threadedly connected to a closing plug.

[0019] In a possible design, a bottom groove is provided at the bottom of the rotating chamber, and the fixing seat is provided with an inclined hole connected to the bottom groove, and a sampling threaded rod is threadedly connected to the inner thread of the inclined hole.

[0020] In a possible design, the U-shaped seat is provided with a plurality of mounting holes and clearance holes, and the clearance holes correspond to the positions of the liquid injection nozzles.

[0021] Beneficial effects: In the present invention, the rotating ball is rotatably arranged in the rotating cavity, a clearance groove is provided on one side of the fixing seat for making way for the rotation of the fixed column, and a curved plate is provided on the outer wall fixing sleeve of the fixed column; when the gas spring rotates to open and close the back door, the fixed column drives the curved plate to rotate synchronously, and the fixed column rotates in the clearance groove, while the curved plate always blocks the clearance groove, preventing external dust and items in the car trunk from falling into the clearance groove, thereby ensuring that the fixed column can operate smoothly;

[0022] In the present invention, a plurality of arc blocks are fixed to the outer wall of the arc plate, a first magnet is slidably connected in the rectangular hole, a first electromagnet is fixed to the inner wall of one side of the rectangular hole, and a toggle rod is fixed to one side of the first magnet; the repulsive force of the first electromagnet on the first magnet pushes the toggle rod to move in the direction of the trapezoidal groove, and when the fixed column drives the arc plate to rotate, the plurality of arc blocks on the outer side of the arc plate can push the toggle rod to move outward, thereby driving the movable plate and the closing plate to move outward, so that the through hole is aligned with the leakage hole, and the lubricating oil in the storage chamber can be injected into the rotating chamber through the through hole and the leakage hole, thereby completing the injection of the lubricating oil;

[0023] In the present invention, an arc-shaped rack is fixed to the bottom of the arc-shaped plate, and a slope is provided on the top of the supporting plate, and the slope is slidably connected to a load-bearing seat through a track groove. A latch is fixed to the top of the load-bearing seat, and a second magnet and a second electromagnet are respectively fixed to the side of the load-bearing seat and the limiting back plate that are close to each other by bolts; the repulsive force between the second electromagnet and the second magnet drives the load-bearing seat to move, which can brake the arc-shaped rack, so that the tailgate can be stopped at any angle; after the second electromagnet is powered off, the load-bearing seat and the latch move obliquely downward along the slope under the action of gravity, releasing the brake on the arc-shaped rack, so that the fixed column can continue to rotate, and the tailgate can continue to open and close.

[0024] In the present invention, the cooperation between the fixed column and the arc plate can shield the give way groove when the back door is opened and closed, preventing dust from entering the give way groove and affecting the rotation of the rotating ball and the fixed column. At the same time, the fixed column and the arc plate can drive the movable plate to move to complete the automatic addition of lubricating oil, and the repulsive force of the second electromagnet and the second magnet can cooperate to enable the latch to brake the arc rack, so that the back door can be stopped at any angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a gas spring and a rotating component of an angle-adjustable gas spring device for controlling a side-opening tailgate of a passenger vehicle provided by the present invention;

[0026] Figure 2 This is a three-dimensional structural diagram of a gas spring and a rotating component of an angle-adjustable gas spring device for controlling a side-opening tailgate of a passenger vehicle provided by the present invention;

[0027] Figure 3 A schematic diagram of a three-dimensional exploded structure of a rotating component of an angle-adjustable gas spring device for controlling a side-opening tailgate of a passenger vehicle provided by the present invention;

[0028] Figure 4 This is a schematic cross-sectional view of a fixing seat of an angle-adjustable gas spring device for controlling a side-opening tailgate of a passenger vehicle provided by the present invention;

[0029] Figure 5 This is a three-dimensional cross-sectional structural diagram of a fixing seat and a rotating cavity of an angle-adjustable gas spring device for controlling a side-opening tailgate of a passenger vehicle provided by the present invention;

[0030] Figure 6 This is a schematic diagram of the three-dimensional exploded structure of a movable plate, a curved plate, and a protective shell of an angle-adjustable gas spring device for controlling a side-opening tailgate of a passenger vehicle provided by the present invention;

[0031] Figure 7 This is a schematic diagram of a three-dimensional exploded structure of a movable plate, a trapezoidal plate, a trapezoidal plate and a first electromagnet of an angle-adjustable gas spring device for controlling a side-opening tailgate of a passenger vehicle provided by the present invention;

[0032] Figure 8 A schematic diagram of a three-dimensional exploded structure of a curved plate and a curved rack of an angle-adjustable gas spring device for controlling a side-opening tailgate of a passenger vehicle provided by the present invention;

[0033] Figure 9 This is a schematic diagram of a three-dimensional exploded structure of a bearing plate, a latching tooth, and a limiting back plate of an angle-adjustable gas spring device for controlling a side-opening tailgate of a passenger vehicle provided by the present invention;

[0034] Figure 10 This is a schematic cross-sectional view of a U-shaped seat and a fixing seat of an angle-adjustable gas spring device for controlling a side-opening tailgate of a passenger vehicle provided by the present invention;

[0035] Figure 11 This is a schematic cross-sectional view of an angle-adjustable gas spring device for controlling a side-opening tailgate of a passenger vehicle provided by Example 3 of the present invention;

[0036] Figure 12A three-dimensional schematic diagram of a button switch for installing an angle-adjustable gas spring device for controlling a side-opening tailgate of a passenger vehicle provided in Example 3 of the present invention;

[0037] Figure 13 This is a schematic cross-sectional view of the BB direction of an angle-adjustable gas spring device for controlling a side-opening tailgate of a passenger vehicle provided in Example 3 of the present invention;

[0038] Figure 14 This is a schematic diagram of the partial structural decomposition of an angle-adjustable gas spring device for controlling the side-opening tailgate of a passenger vehicle provided in Example 3 of the present invention.

[0039] In the figure: 1. gas spring; 2. rotating member; 3. U-shaped seat; 4. mounting hole; 5. clearance hole; 6. fixed seat; 7. rotating chamber; 8. rotating bead; 9. fixing column; 10. clearance groove; 11. arc plate; 12. storage chamber; 13. liquid injection nozzle; 14. closing plug; 15. leakage hole; 16. closing plate; 17. through hole; 18. moving plate; 19. rectangular hole; 20. first magnet; 21. toggle rod; 22. first electromagnet; 23. trapezoidal groove; 24. trapezoidal plate; 25. load-bearing block; 26. limit plate; 27. protective shell; 28. limit groove; 29. sliding seat; 30. arc gear 31. Load-bearing plate; 32. Inclined surface; 33. Track groove; 34. Bearing seat; 35. Gear; 36. Limit back plate; 37. Second electromagnet; 38. Second magnet; 39. Arc block; 40. Bottom groove; 41. Oblique hole; 42. Threaded rod; 101. Cylinder; 102. Floating piston; 103. Piston; 104. Flow valve; 105. Piston rod; 106. Needle valve; 107. Positioning sleeve; 108. Base; 109. Flow hole; 110. Housing; 111. Torsion spring; 112. Rotating shaft; 113. Pressing plate; 114. Top cap; 115. Notch; 116. Cylindrical clamping shaft. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] Example 1: Reference Figure 1 and Figure 2 , gas spring, relates to the technical field of gas springs, the gas spring device mainly includes a gas spring 1, two rotating components 2, a protective structure, a lubrication structure and a braking structure.

[0042] Reference Figure 1 and Figure 2The gas spring 1 is the core component of the device, which is used to provide a stable support force to assist in opening and closing the tailgate. The gas spring 1 includes a piston rod and a base. The piston rod moves in an extension and contraction motion under the action of the gas pressure inside the gas spring 1.

[0043] Reference Figures 1-4 Two rotating members 2 are rotatably mounted on the piston rod and one end of the base of the gas spring 1, respectively, to achieve a flexible connection between the gas spring 1 and the tailgate and vehicle body. Each rotating member 2 consists of a U-shaped seat 3, a fixed seat 6, a rotating ball 8 that rotates within the fixed seat 6, and a fixed column 9 fixed to one side of the rotating ball 8. The U-shaped seat 3 is used for fixed connection to the vehicle body or tailgate. One side of the U-shaped seat is provided with multiple mounting holes 4 for screws to achieve a fixed connection. The top of the U-shaped seat 3 is also provided with a clearance hole 5 for making way for the liquid injection nozzle 13.

[0044] Reference Figure 3 and Figure 4 To facilitate the injection of lubricating oil into the storage chamber 12, the present application fixes a liquid injection nozzle 13 connected to the storage chamber 12 at the top of the fixing base 6. A sealing plug 14 is threadedly connected to the top of the liquid injection nozzle 13 to seal the liquid injection nozzle 13. When it is necessary to inject lubricating oil into the storage chamber 12, the sealing plug 14 can be unscrewed and an appropriate amount of lubricating oil can be injected into the storage chamber 12 through the liquid injection nozzle 13. After injection is completed, the sealing plug 14 is tightened to prevent the lubricating oil from leaking.

[0045] Reference Figure 3-Figure 6 The fixed seat 6 is the main part of the rotating member 2, and a rotating cavity 7 is provided inside the fixed seat 6. The rotating ball 8 is rotatably arranged in the rotating cavity 7. A clearance groove 10 is provided on one side of the fixed seat 6 for making way for the rotation of the fixed column 9. The outer wall of the fixed column 9 is fixedly sleeved with an arc-shaped plate 11, and the arc-shaped plate 11 slides on the outer wall of the fixed seat 6. When the gas spring 1 rotates to open and close the tailgate, the fixed column 9 drives the arc-shaped plate 11 to rotate synchronously. The fixed column 9 rotates in the clearance groove 10, and the arc-shaped plate 11 always blocks the clearance groove 10 to prevent external dust and items in the car trunk from falling into the clearance groove 10, ensuring that the fixed column 9 can operate smoothly.

[0046] Reference Figure 3-Figure 6 To further enhance the protective effect, the present application incorporates a protective structure within the fixed seat 6. This protective structure primarily comprises a rotation chamber 7, a clearance groove 10, and a curved plate 11. The rotation chamber 7 provides a stable rotational space for the rotating ball 8, while the clearance groove 10 allows the fixing post 9 to move as necessary during rotation. The curved plate 11 effectively prevents the intrusion of dust and debris, protecting the internal structure of the rotating member 2.

[0047] Reference Figure 4 、 Figure 6 and Figure 7 In terms of lubrication, the present application sets a lubrication structure in the fixed seat 6. The lubrication structure mainly includes a storage chamber 12, a leakage hole 15, a closing plate 16, a through hole 17 and a movable plate 18. The storage chamber 12 is used to store lubricating oil, and the leakage hole 15 is provided on the bottom inner wall of the storage chamber 12 for draining the lubricating oil from the storage chamber 12. The closing plate 16 is provided above the leakage hole 15 and is provided with a plurality of through holes 17. When the through holes 17 are aligned with the leakage holes 15, the lubricating oil in the storage chamber 12 can be injected into the rotating chamber 7 through the through holes 17 and the leakage holes 15, completing the automatic filling operation of the lubricating oil.

[0048] Reference Figure 6 and Figure 7 The movable plate 18 is fixed to one end of the closing plate 16, and one end thereof slides through the inner wall of one side of the storage chamber 12 in a sealed manner and extends to one side of the fixed seat 6. Driven by the movable plate 18, the closed plate 16 can move horizontally, thereby achieving alignment or misalignment between the through hole 17 and the leakage hole 15. In order to drive the movable plate 18 to move, the present application fixes a plurality of arc blocks 39 on the outer wall of the arc plate 11, and provides a rectangular hole 19 on one side of the fixed seat 6 in the movable plate 18. A first magnet 20 is slidably connected in the rectangular hole 19, and a first electromagnet 22 is fixed to the inner wall of the side of the rectangular hole 19 away from the fixed seat 6. A repulsive force is generated between the first electromagnet 22 and the first magnet 20, so that the toggle rod 21 fixed on one side of the first magnet 20 is in close contact with the inner wall of one side of the rectangular hole 19. The toggle rod 21 cooperates with the arc block 39 and is used to drive the movable plate 18 to move through the toggle rod 21 when the arc plate 11 drives the arc block 39 to rotate.

[0049] Specifically, when the first electromagnet 22 is energized, the repulsive force exerted by the first electromagnet 22 on the first magnet 20 pushes the toggle rod 21 toward the direction of the trapezoidal groove 23, and the toggle rod 21 is in close contact with the inner wall of one side of the rectangular hole 19. When the fixed column 9 drives the arc plate 11 to rotate, the multiple arc blocks 39 on the outside of the arc plate 11 can push the toggle rod 21 to move outward. Since the repulsive force exerted by the first electromagnet 22 on the first magnet 20 is greater than the thrust generated by the cooperation of the trapezoidal plate 24 and the trapezoidal groove 23, the cooperation between the arc blocks 39 and the toggle rod 21 can drive the movable plate 18 and the closing plate 16 to move outward. The closing plate 16 drives the through hole 17 to move, so that the through hole 17 is aligned with the leakage hole 15, so that the lubricating oil in the storage chamber 12 is injected into the rotating chamber 7 through the through hole 17 and the leakage hole 15, completing the injection of the lubricating oil.

[0050] Reference Figure 7In order to reseal the leakage hole 15 after the lubricating oil is injected, the present application provides a trapezoidal groove 23 located on one side of the fixed seat 6 in the movable plate 18. A trapezoidal plate 24 is slidably connected to one side of the fixed seat 6, and the inclined surface of the trapezoidal plate 24 cooperates with the inclined surface of the trapezoidal groove 23. When the trapezoidal plate 24 moves downward, its inclined surface interacts with the inclined surface of the trapezoidal groove 23, driving the movable plate 18 to move inward, thereby resealing the leakage hole 15. A load-bearing block 25 is fixed to the top of the trapezoidal plate 24 by bolts, which is used to increase the force that drives the movable plate 18 to move when the trapezoidal plate 24 moves downward. A limiting plate 26 located below the movable plate 18 is also fixed to one side of the fixed seat 6 for limiting the trapezoidal plate 24.

[0051] Specifically, when the first electromagnet 22 is de-energized, the trapezoidal plate 24 moves downward under the force of gravity on the weight-bearing block 25. The interaction between the trapezoidal plate 24 and the trapezoidal groove 23 drives the movable plate 18 inward, allowing the sealing plate 16 to reseal the leakage hole 15. At this point, the lubricating oil stops flowing into the rotating chamber 7, completing the automatic lubricating oil filling and sealing process.

[0052] Reference Figure 4 、 Figure 6 and Figure 7 In order to improve the stability of the movement of the toggle rod 21, the present application fixes a protective shell 27 to one side of the fixed base 6. One end of the movable plate 18 extends into the protective shell 27, and a limiting groove 28 is provided on the bottom inner wall of the protective shell 27. A sliding seat 29 is slidably connected to the limiting groove 28, and the sliding seat 29 is fixedly sleeved on the outer wall of the toggle rod 21. When the arc block 39 drives the toggle rod 21 to move, the cooperation between the sliding seat 29 and the limiting groove 28 can increase the stability of the movement of the toggle rod 21 and prevent it from deflecting or shaking.

[0053] Reference Figure 3 、 Figure 4 、 Figure 8 and Figure 9 In addition to the lubrication structure, the present application also provides a braking structure for stopping the tailgate from rotating at any angle. The braking structure mainly includes an arc-shaped rack 30, a bearing plate 31, an inclined surface 32, a track groove 33, a bearing seat 34, a latch 35, a limiting back plate 36, a second electromagnet 37 and a second magnet 38. The arc-shaped rack 30 is fixed to the bottom of the arc-shaped plate 11, and the bearing plate 31 is fixed to one side of the fixing seat 6 and is located below the arc-shaped rack 30. The top of the bearing plate 31 is provided with an inclined surface 32, and a limiting back plate 36 is welded to the top of the inclined surface 32. The top of the inclined surface 32 is provided with multiple track grooves 33, and the bearing seat 34 is slidably connected to the inclined surface 32 through the track grooves 33. A latch 35 is fixed to the top of the bearing seat 34, which is used to cooperate with the arc-shaped rack 30 to brake the arc-shaped plate 11.

[0054] Under normal circumstances, the latch 35 and the bearing seat 34, under their own weight, cooperate with the inclined surface 32, causing the latch 35 to move diagonally downward, thereby releasing the brake on the curved rack 30. However, if the tailgate needs to be stopped at any angle, the second electromagnet 37 can be energized. The repulsive force between the second electromagnet 37 and the second magnet 38 drives the bearing seat 34 toward the curved rack 30, causing the latch 35 to engage with the curved rack 30, thereby braking the curved rack 30. Because the curved rack 30 is fixed to the curved plate 11, the braking effect of the latch 35 on the curved rack 30 further brakes the rotation of the rotating ball 8 and the fixed column 9, allowing the tailgate to be stopped at any angle.

[0055] The repulsive force between the second electromagnet 37 and the second magnet 38 is greater than the driving force causing the bearing seat 34 and the latching teeth 35 to move diagonally downward under the action of the inclined surface 32. Therefore, when the second electromagnet 37 is energized, the latching teeth 35 can stably engage with the arcuate rack 30, achieving a reliable braking effect. Furthermore, to release the brake, the second electromagnet 37 can be de-energized. At this point, the bearing seat 34 and the latching teeth 35, under the action of gravity, move diagonally downward along the inclined surface 32, releasing the brake on the arcuate rack 30. This allows the fixed post 9 to continue rotating, and the tailgate can continue to open or close.

[0056] When in use, the two U-shaped seats 3 are fixed to the car body and the back door respectively through screws and mounting holes 4. Ensure that the installation position of the U-shaped seat 3 is accurate and firm so as to facilitate the subsequent installation of the gas spring 1 and the rotating member 2.

[0057] Insert the piston rod and base of the gas spring 1 into the fixing seats 6 of the two rotating components 2, respectively, and achieve a rotating connection through the rotating beads 8 and fixing posts 9. During installation, pay attention to adjusting the angle and position of the rotating components 2 to ensure that the gas spring 1 can extend and retract smoothly and assist in opening and closing the tailgate.

[0058] Debug and configure the lubrication mechanism. Fill the storage chamber 12 with an appropriate amount of lubricating oil and tighten the plug 14. Adjust the on and off times of the first electromagnet 22 as needed to control the amount and frequency of lubricating oil added. Ensure that lubricating oil automatically fills the rotating chamber 7 during the rotation of the gas spring 1, maintaining good lubrication of the rotating component 2.

[0059] Debug and configure the braking mechanism. Adjust the power-on and power-off times of the second electromagnet 37 as needed to control the tailgate's braking angle and duration. Ensure that when the tailgate needs to be stopped at any angle, the second electromagnet 37 is energized promptly to drive the latching teeth 35 into engagement with the arc-shaped rack 30, achieving the desired braking effect.

[0060] Perform a comprehensive inspection and test of the entire system. Check whether all components are securely installed, whether they rotate smoothly, and whether lubrication and braking are in good working order. Once everything is confirmed to be normal, the passenger car can be put into normal use.

[0061] Flexible angle adjustment: The rotating member 2 and gas spring 1 work together to achieve flexible angle adjustment during the opening and closing process of the tailgate, meeting the needs of different passengers and improving convenience and comfort.

[0062] Two control buttons are fixedly installed on the outer side of the tailgate by bolts. The two control buttons are electrically connected to the first electromagnet 22 and the second electromagnet 37 respectively, and are used to control the addition of lubricating oil and the control of the gas spring switch angle.

[0063] The structure of the gas spring 1 is consistent with that of the tension gas spring of publication number CN202790286U.

[0064] Example 2: Reference Figure 10 , improved on the basis of Example 1: In addition, in order to facilitate the detection of the lubricating oil in the rotating chamber 7, the present application provides a bottom groove 40 on the bottom inner wall of the rotating chamber 7. An inclined hole 41 connected to the bottom groove 40 is provided in the fixing seat 6, and a threaded rod 42 is threadedly connected to the inclined hole 41 through an internal thread. One end of the threaded rod 42 extends into the bottom groove 40 for attaching lubricating oil. When it is necessary to detect the viscosity of the lubricating oil in the rotating chamber 7, the threaded rod 42 can be rotated and the threaded rod 42 can be taken out of the inclined hole 41. At this time, one end of the threaded rod 42 is contaminated with the original lubricating oil in the rotating chamber 7 and the bottom groove 40. By observing the viscosity of the lubricating oil at one end of the threaded rod 42, it can be determined whether the lubricating oil needs to be re-added.

[0065] Specifically, to check the lubricant's condition, use a spanner wrench to grip the hexagonal head of threaded rod 42 and rotate it counterclockwise to remove it from inclined hole 41. The end of threaded rod 42 will then be contaminated with the lubricant in rotating chamber 7 and bottom groove 40. By observing the viscosity and color of the lubricant at the end of threaded rod 42, you can determine whether the lubricant needs to be replaced. If the lubricant appears black or has significantly decreased viscosity, re-lubrication is necessary. If the lubricant remains transparent and has normal viscosity, replacement is not necessary. After testing, screw threaded rod 42 back into inclined hole 41 to secure it.

[0066] The sampling and detection structure of the bottom groove 40 and the threaded rod 42 makes the detection of the lubricating oil status simple and reliable, and the detection can be completed without disassembling the entire device.

[0067] A method for using an angle-adjustable gas spring device for controlling a side-opening tailgate of a passenger vehicle comprises the following steps:

[0068] S1, bolts pass through the mounting holes 4, and the two U-shaped seats 3 can be fixed to the car body and the tailgate respectively. The tailgate can be opened and closed by the cooperation of the gas spring 1 and the rotating member 2. When the gas spring 1 rotates to open and close the tailgate, the fixed column 9 drives the curved plate 11 to rotate synchronously. The fixed column 9 rotates in the clearance groove 10, and the curved plate 11 always blocks the clearance groove 10, preventing external dust and items in the car trunk from falling into the clearance groove 10, ensuring that the fixed column 9 can operate smoothly.

[0069] S2. When the rotating ball 8 and the fixing column 9 produce resistance or noise when rotating in the fixing seat 6, the rotating cavity 7 needs to be lubricated. In addition, the threaded rod 42 is rotated to remove the threaded rod 42 from the inclined hole 41. At this time, one end of the threaded rod 42 is contaminated with the original lubricating oil in the rotating cavity 7 and the bottom groove 40. The viscosity of the lubricating oil at one end of the threaded rod 42 can be observed to determine whether the lubricating oil needs to be reapplied.

[0070] S3. When adding lubricating oil, the first electromagnet 22 is energized, and the repulsive force of the first electromagnet 22 on the first magnet 20 pushes the toggle rod 21 to move in the direction of the trapezoidal groove 23, and the toggle rod 21 is close to the inner wall of one side of the rectangular hole 19. When the fixed column 9 drives the curved plate 11 to rotate, the multiple arc blocks 39 on the outside of the curved plate 11 can push the toggle rod 21 to move outward. Since the repulsive force generated by the first electromagnet 22 on the first magnet 20 is greater than the thrust generated by the combination of the trapezoidal plate 24 and the trapezoidal groove 23, the combination of the arc blocks 39 and the toggle rod 21 drives the moving plate 18 and the closing plate 16 moves outward, the inclined surface of the trapezoidal groove 23 cooperates with the inclined surface of the trapezoidal plate 24 to drive the trapezoidal plate 24 and the load-bearing block 25 to move upward, and the closing plate 16 drives the through hole 17 to move. The through hole 17 is aligned with the leakage hole 15, so that the lubricating oil in the storage chamber 12 can be injected into the rotating chamber 7 through the through hole 17 and the leakage hole 15, thereby completing the injection of the lubricating oil; and after the first electromagnet 22 is powered off, the trapezoidal plate 24 moves downward under the gravity of the load-bearing block 25, and the cooperation between the trapezoidal plate 24 and the trapezoidal groove 23 drives the movable plate 18 to move inward, and the closing plate 16 re-seals the leakage hole 15;

[0071] S4. When the tailgate needs to stop at any angle, the second electromagnet 37 is energized, and the repulsive force between the second electromagnet 37 and the second magnet 38 drives the load-bearing seat 34 to move in the direction of the arc-shaped rack 30. The latching teeth 35 brake the arc-shaped rack 30, and then brake the rotation of the rotating bead 8 and the fixed column 9, so that the tailgate can be stopped at any angle; in addition, after the second electromagnet 37 is de-energized, the load-bearing seat 34 and the latching teeth 35 move obliquely downward along the inclined surface 32 under the action of gravity, releasing the brake on the arc-shaped rack 30, so that the fixed column 9 can continue to rotate, and the tailgate can continue to be opened and closed.

[0072] Example 3: Reference Figure 11-14 , the gas spring 1 includes a cylinder 101, a floating piston 102, a piston 103, a circulation valve 104, a piston rod 105, a needle valve 106, a positioning sleeve 107, a base 108, a piston rod assembly and an oil distribution device. The piston 103 divides the cylinder 101 into a rod chamber and a rodless chamber, and a flow hole 109 is provided on the piston 103. The movement of the circulation valve 104 can control the opening and closing of the flow hole 109 to control whether the rod chamber and the rodless chamber are connected. The front end core rod of the needle valve 106 is a 4mm core rod. The core rod is pressed into the piston rod 105. The core rod drives the needle valve 106 and the circulation valve 104 to move, so that the rod chamber and the rodless chamber are connected. At this time, the cylinder 101 The gas pressure in the rod chamber and the rodless chamber is the same. At this time, the piston rod 105 can extend freely, and the corresponding tailgate free switch is not limited. Without applying external force, the core rod will automatically pop out, and the piston rod 105 cannot be extended or compressed, and the corresponding tailgate is limited. In order to facilitate actual operation, a self-locking button (similar to the structure of the emergency stop switch, not shown in the figure) is installed at the end of the piston rod 105 extended by the core rod to control the movement of the core rod. Press the button switch and the core rod is pressed into the piston rod 105. At this time, the button switch is in a self-locking state, keeping the core rod pressed into the piston rod 105. No artificial pressure is required. When limiting is required, the self-locking state of the button switch is released, and the core rod is also Stretch out (this is another braking structure), wherein the button switch includes a shell 110 that is detachably fixedly mounted on the outer wall of the front end of the piston rod 105, a top cap 114 is fixed on the top of the shell 110, and a rotating shaft 112 is rotatably mounted on the side wall of the top cap 114. The outer wall of the rotating shaft 112 is fixed with a pressing plate 113 that rotates around the rotating shaft 112 to push the core rod to move, and at least one torsion spring 111 is sleeved and mounted on the outer wall of the rotating shaft 112. The two ends of the torsion spring 111 are fixed to the pressing plate 113 and the side walls of the top cap 114, and a cylindrical clamping shaft 116 is fixed to the top center position of the core rod, and the end of the pressing plate 113 in contact with the core rod is provided with a defective part that is adapted to the cylindrical clamping shaft 116. Mouth 115, press the pressing plate 113, the pressing plate 113 rotates with the rotating shaft 112 as the center, the pressing plate 113 contacts the core rod and presses the core rod into the piston rod 105, and at the same time, the torsion spring 111 accumulates force, and when the notch 115 moves to the position of the cylindrical clamping shaft 116, the cylindrical clamping shaft 116 is clamped into the notch 115. At this time, the pressing plate 113 is released. Under the action of the cylindrical clamping shaft 116 and the notch 115, the pressing plate 113 is in a self-locking state. When the self-locking state needs to be released, the pressing plate 113 is pushed in the opposite direction to force the cylindrical clamping shaft 116 and the notch 115 to separate. Under the action of the torsion spring 111, the pressing plate 113 is reset, and the core rod will also extend out.

[0073] However, as is well known to those skilled in the art, the working principles and wiring methods of the first electromagnet 22 and the second electromagnet 37 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0074] The drawings in this application are for illustrative purposes only. The sizes and shapes of the components shown are not intended to be limiting, but are merely for illustrative purposes. In actual implementation, the components may be appropriately configured and adjusted based on specific needs and actual conditions.

[0075] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An angle-adjustable gas spring device for controlling a side-opening tailgate of a passenger vehicle, characterized in that: It comprises a gas spring (1) and two rotating components (2), wherein the two rotating components (2) are respectively rotatably connected to the piston rod and the base end of the gas spring (1); Each rotating member (2) comprises a U-shaped seat (3), a fixed seat (6), a rotating ball (8) and a fixed column (9); the rotating ball (8) is rotatably arranged in the fixed seat (6); the fixed column (9) is fixed to one side of the rotating ball (8) and is respectively connected to both ends of the gas spring (1); A protective structure is provided in the fixed seat (6), comprising a lubricating structure and a rotating chamber (7); the rotating ball (8) is arranged in the rotating chamber (7); the lubricating structure comprises a storage chamber (12), a leakage hole (15), a closing plate (16) and a movable plate (18); the storage chamber (12) is connected to the rotating chamber (7) through the leakage hole (15); the closing plate (16) is movably provided to close the leakage hole (15); and the movable plate (18) is fixedly connected to the closing plate (16) and extends to the outside of the fixed seat (6); A clearance groove (10) is provided on one side of the fixing seat (6), and an arc-shaped plate (11) is fixedly provided on the outer wall of the fixing column (9). The arc-shaped plate (11) is slidably fitted on the outer wall of the fixing seat (6) to continuously block the clearance groove (10) when the fixing column (9) rotates.

2. The angle-adjustable gas spring device for controlling the side-opening tailgate of a passenger vehicle according to claim 1, characterized in that: The lubricating structure further comprises a plurality of through holes (17) arranged in the closing plate (16). When the movable plate (18) drives the closing plate (16) to move so that the through holes (17) are aligned with the leakage holes (15), the lubricating oil in the storage chamber (12) is injected into the rotating chamber (7) through the through holes (17) and the leakage holes (15).

3. The angle-adjustable gas spring device for controlling the side-opening tailgate of a passenger vehicle according to claim 2, characterized in that: The lubrication structure further comprises a plurality of arc blocks (39) fixed on the outer wall of the arc plate (11); a rectangular hole (19) is provided in the movable plate (18); a first magnet (20) and a fixed first electromagnet (22) are slidably provided in the rectangular hole (19); the first electromagnet (22) and the first magnet (20) generate a repulsive force and push the toggle rod (21) to be close to the inner wall of the rectangular hole (19); the toggle rod (21) cooperates with the arc blocks (39) to drive the movable plate (18) to move when the arc plate (11) rotates.

4. The angle-adjustable gas spring device for controlling the side-opening tailgate of a passenger vehicle according to claim 2, characterized in that: The movable plate (18) is provided with a trapezoidal groove (23), and a trapezoidal plate (24) is slidably connected to one side of the fixed seat (6). The inclined surface of the trapezoidal plate (24) cooperates with the trapezoidal groove (23). A bearing block (25) is provided on the top of the trapezoidal plate (24). When the first electromagnet (22) is powered off, the bearing block (25) drives the trapezoidal plate (24) to move downward and pushes the movable plate (18) to reset and close the leakage hole (15) through the trapezoidal groove (23).

5. The angle-adjustable gas spring device for controlling the side-opening tailgate of a passenger vehicle according to claim 3, characterized in that: A protective shell (27) is fixed on one side of the fixed seat (6), the movable plate (18) extends into the protective shell (27), a limiting groove (28) is provided at the bottom of the protective shell (27), and a sliding seat (29) that is slidably matched with the limiting groove (28) is provided on the outer wall fixed sleeve of the toggle rod (21).

6. The angle-adjustable gas spring device for controlling the side-opening tailgate of a passenger vehicle according to claim 1, characterized in that: It also includes a braking structure, which includes an arc-shaped rack (30) fixed to the bottom of the arc-shaped plate (11), a bearing plate (31) fixed to one side of the fixed seat (6), and a load-bearing seat (34) slidably arranged on the inclined surface (32).

7. The angle-adjustable gas spring device for controlling the side-opening tailgate of a passenger vehicle according to claim 6, characterized in that: A latching tooth (35) meshing with the arc-shaped rack (30) is provided on the top of the load-bearing seat (34); a second magnet (38) and a second electromagnet (37) are provided between the load-bearing seat (34) and the limiting back plate (36); when the second electromagnet (37) is energized, the latching tooth (35) is driven to mesh with the arc-shaped rack (30) for braking.

8. The angle-adjustable gas spring device for controlling the side-opening tailgate of a passenger vehicle according to claim 6, characterized in that: The top of the storage cavity (12) is connected to a liquid injection nozzle (13), and the top end of the liquid injection nozzle (13) is threadedly connected to a closing plug (14).

9. The angle-adjustable gas spring device for controlling the side-opening tailgate of a passenger vehicle according to claim 7, characterized in that: The bottom of the rotating chamber (7) is provided with a bottom groove (40), the fixing seat (6) is provided with an inclined hole (41) communicating with the bottom groove (40), and the inner thread of the inclined hole (41) is connected to a sampling threaded rod (42).

10. The angle-adjustable gas spring device for controlling the side-opening tailgate of a passenger vehicle according to claim 8, characterized in that: The U-shaped seat (3) is provided with a plurality of mounting holes (4) and clearance holes (5), and the clearance holes (5) correspond in position to the liquid injection nozzle (13).

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