FOLDABLE LIFTING DEVICE FOR VEHICLES

Abstract

Foldable lifting device for a vehicle comprising an outer housing (1), a lifting plate (2), a folding assembly and a synchronous buffer assembly, wherein the outer housing (1) comprises a housing base (11), wherein the lifting plate (2) is movably provided within the outer housing (1), and the folding assembly is provided between the underside of the lifting plate (2) and the top of the housing base (11), The folding assembly consists of two sets of lateral V-shaped folding parts, the two sets of which are arranged symmetrically at the front and rear, and the synchronous buffer assembly is arranged between the undersides of the two sets of lateral V-shaped folding parts. the two sets of lateral V-shaped folding parts arranged symmetrically at the front and rear comprise a front upper folding strip (33) and an axially connected front lower folding strip (31), a rear upper folding strip (36) and an axially connected rear lower folding strip (32), the upper ends of the front upper folding strip (33) and the rear upper folding strip (36) being axially connected to the underside of the lifting plate (2), the lower ends of the front lower folding bar (31) and the rear lower folding bar (32) are each axially connected to the top of the housing base (11), the synchronizing buffer assembly comprises a first synchronizing rack (41) and a second synchronizing rack (42), the first synchronizing rack (41) is fixedly arranged on the rear lower side of the front lower folding bar (31) and the second synchronizing rack (42) is fixedly arranged on the front lower side of the rear lower folding bar (32), the first synchronizing rack (41) and the second synchronizing rack (42) have the same tooth shape and mesh together for transmission; characterized in that the front and rear symmetrically arranged two sets of lateral V-shaped folding parts are completely identical, the synchronizing buffer assembly is provided with a speed change gear (43) and a damper (45), the first synchronizing rack (41) is arc-shaped, and the arc-shaped first synchronizing rack (41) takes the connection point of the axial connection of the lower end of the front lower folding strip (31) as the center of the circle; the second synchronizing rack (41) is arc-shaped, and the arc-shaped second synchronizing rack (41) takes the connection point of the axial connection of the lower end of the rear lower folding strip (32) as the center of the circle; the first synchronizing rack (41) and the second synchronizing rack (41) have the same radius.

Description

TECHNICAL AREA

[0001] The present invention relates to a lifting device, in particular a foldable lifting device, which can be used in a vehicle cup holder and has a reasonable design, stable lifting, a smaller volume and a larger lifting span. STATE OF THE ART

[0002] Cup holders or cup holders are an essential accessory in the automotive sector, and the automotive parts manufacturing department of the company has invested a lot of personnel and financial resources to develop, design and manufacture these automotive parts.

[0003] Utility model CN ​​2 08 682 699 U (CN 201821311209.X) discloses a liftable double cup holder characterized in that the liftable double cup holder comprises a cover body, a base, and a separating mechanism, wherein the base defines a receiving space for cups and bottles; the cover body moves relative to the base between a lifting position of the receiving space and a lowering position for supporting the cup or bottle beneath the receiving space. As the cover body moves from the lifting position to the lowering position, the separating mechanism moves from an avoidance position located outside the receiving space to an action position that divides the receiving space into two sub-spaces.As shown in the description and the accompanying drawings, the first and second connecting rods are hinged in the middle to form an X-shape. Folding this X-shape achieves raising and lowering by increasing or decreasing the distance between the upper, lower, left, and right ends. The width of the cup holder is limited, therefore the lifting height is also limited. For example, with a cup holder that has a diameter of 90 mm, the lifting range is only about 35 mm. The lifting effect is therefore insufficient.

[0004] CN 1 01 311 030 A (CN 200710169551.0) discloses a recessed cup holder for a motor vehicle comprising a support housing, a lifting housing that can move within the support housing, a cup-carrying pallet that can move within the lifting housing, and a lifting unit that moves the lifting housing and the cup-carrying pallet in the opposite direction. Although the technical solution can be implemented, the structure, production, and assembly processes are too complex. The more complex the structure, the higher the failure rate. Furthermore, the space outside the cup holder is too large.

[0005] Utility model CN ​​2 06 870 912 U (CN 201720530760.2) discloses a liftable car cup holder device comprising a cup holder and a lifting platform, characterized in that the lifting platform includes a support plate and a support column, each attached to both sides of the underside of the support plate; a damping rod is attached in the center of the underside of the support plate; the damping rod and the support column extend through the base plate of the cup holder; a compression spring is provided outside the support column, with both ends of the compression spring bearing against the base plate and the support plate, respectively. While this technical solution is feasible, it requires considerable space at the bottom and lacks technical substance. JP 2008 - 221 992 A also describes a mounting device for an automobile.

[0006] In the existing prototype of the cup holder, the lower end is designed with an arcuate rack. This arcuate rack is movably connected to the lower side of the lifting plate via the lower hole in the base plate of the outer housing. A damper is also installed on the lower side of the base plate of the outer housing and engages with the arcuate rack for transmission. As the arcuate rack moves up and down, it shifts left and right; therefore, the damper must also move left and right. The connection is thus relatively complex. A coil spring is provided between the base plate of the outer housing and the lifting plate. When the lifting plate lowers, the arcuate rack extends towards the lower end on one side.In this way, the space required for the bottom end is relatively reduced, but the space used on one side is also increased, and the stability of raising and lowering is not very good.

[0007] In light of this, the expert in the relevant technical field is attempting to develop a foldable lifting device for a cup holder in a vehicle, featuring a simple and practical design, improved stability, and higher lifting efficiency. Some other prior art documents include JP 2008-221992A, etc. CONTENT OF THE PRESENT INVENTION

[0008] The technical problem to be solved by the present invention is to provide a foldable lifting device for a vehicle with a more stable structure and a smaller volume.

[0009] The invention provides an electrical transmission device according to claim 1. Advantageous embodiments are described in the dependent claims.

[0010] The folding lifting device for a vehicle comprises an outer housing, a lifting plate, a folding assembly, and a synchronizing buffer assembly. The outer housing includes a housing base. It is characterized in that a lifting plate is movably provided within the outer housing, and a folding assembly is provided between the underside of the lifting plate and the top of the housing base.

[0011] The folding assembly consists of two sets of lateral V-shaped folding parts arranged symmetrically at the front and rear; the synchronous buffer assembly is positioned between the undersides of the two sets of symmetrically arranged lateral V-shaped folding parts.

[0012] The front and rear two sets of symmetrically arranged lateral V-shaped folding parts comprise a front upper folding strip and an axially connected front lower folding strip, a rear upper folding strip and an axially connected rear lower folding strip, the upper ends of the front upper folding strip and the rear upper folding strip are each axially connected to the underside of the lifting plate, the lower ends of the front lower folding strip and the rear lower folding strip are each axially connected to the top of the housing base.The synchronous buffer assembly comprises a first synchronous rack and a second synchronous rack; a first synchronous rack is fixed to the rear lower side of the front lower folding bar, and a second synchronous rack is fixed to the front lower side of the rear lower folding bar; the first synchronous rack and the second synchronous rack have the same tooth die and mesh with each other for transmission.

[0013] The front and rear two sets of symmetrically arranged lateral V-shaped folding parts are completely identical, the synchronizing buffer assembly is provided with a speed-changing gear and a damper, the first synchronizing rack is arc-shaped, and the arc-shaped first synchronizing rack takes a shaft pivot point of the lower end of the front lower folding bar as the center of the circle.

[0014] The second synchronizing rack is arc-shaped; the arc-shaped second synchronizing rack takes the shaft pivot point of the lower end of the rear lower folding bar as the center of the circle; the first synchronizing rack and the second synchronizing rack have the same radius.

[0015] The front and rear two sets of symmetrically arranged lateral V-shaped folding parts are each equipped with tension springs at each wave joint, the tension springs keeping the foldable assembly in an extended state at all times.

[0016] Another preferred solution of the present invention consists in providing a mechanical hole in the housing base, a front face of the mechanical hole in the housing base being fixedly provided with a mechanical mounting frame, a speed-changing gear being movably arranged in the mechanical mounting frame, the speed-changing gear consisting of a small gear and a large gear which are fixedly overlapping, the small gear engaging with the first synchronizing rack for transmission, the large gear engaging with a damping gear in the damper for transmission.

[0017] Another preferred solution of the present invention consists in several groups of clamping assemblies being arranged evenly around the outer housing, each group of clamping assemblies consisting of a water cup clamp at the upper end, a limiting connection block at the lower end and a spring connecting strip connecting the two, the outer housing being provided with a clamping hole, a limiting hole and a spring strip connecting groove at the positions corresponding to the clamping assemblies, the upper end of the limiting connection block being shaft-connected on both sides of the limiting hole, the lower end of the spring connecting strip being provided with a support spring, the support spring always ejecting the upper end of clamping assemblies outwards.

[0018] Another preferred solution of the present invention consists in that one side of the outer housing is provided with an internally pressed stepless locking assembly, the rear of the first synchronizing rack is fixedly provided with a ratchet rack, the ratchet rack is arcuate, and the arcuate ratchet rack and the arcuate first synchronizing rack have the same center of circle.

[0019] The upper end of the ratchet rack is provided with several limiting ratchet teeth, the lower end of the several limiting ratchet teeth is an automatic lifting area, the lower end of the automatic lifting area is a highest limit buckle.

[0020] Another preferred solution of the present invention consists in providing a lever groove on one side of the outer housing, connecting a lever bar to a pivot shaft in the lever groove, attaching a movement limiter to the lower side of the housing base, movably arranging a translational locking bar in the movement limiter, providing the inner end of the translational locking bar with a closure, and enabling the closure to lock a limiting ratchet.

[0021] The outer end of the translation locking bar is provided with a lever connection hole, the lower end of the lever bar is inserted into the lever connection hole, the upper end of the lever bar is connected to an inner knob, the outer side is firmly fitted with a return spring at the upper opening of the outer housing on the outside of the inner knob, the return spring always ejects the inner knob in the direction inside the outer housing.

[0022] Another preferred solution of the present invention consists in the fact that the underside of the housing base is provided with a pressed stepless locking assembly, the pressed stepless locking assembly comprising a lever release bar and a release pressure bar, the underside of the housing base being fixedly provided with a lever mounting frame, a locking bar groove being arranged in the lever mounting frame, a movable locking bar being axially connected in the locking bar groove, and the outer end of the movable locking bar abutting the upper left side of the large gear.

[0023] The top of the movable locking bar is diagonally fitted with a spring wire; the spring wire always pushes the outer end of the movable locking bar downwards, i.e., locking the large gear.

[0024] Another preferred solution of the present invention consists in a lever release bar being movably attached to the lever mounting frame, a mounting frame groove for connecting to the lever mounting frame being provided in the lever release bar, one end of the lever release bar being mounted on the lower side of the movable locking bar, and the upper side of the other end of the lever release bar being connected to a release pressure bar.

[0025] Another preferred solution of the present invention consists in the arrangement of anti-slip strips on the upper side of the lifting plate.

[0026] The advantages of the present invention are a simple and reasonable structure, better stability during lifting, a greater span during lifting and lowering, better effectiveness, less space used, and wide application in various cup holders with different depths and different spans during lifting. ABBREVIATION OF THE DRAWINGS

[0027] The present invention is described in more detail below with reference to the accompanying drawings and preferred embodiments, but the person skilled in the art will recognize that these drawings are drawn only for the purpose of illustrating the preferred embodiments and are therefore not to be regarded as limiting the scope of the present invention. Fig. Figure 1 is a three-dimensional structure diagram when a lifting plate of the present invention is lifted to a flat plate. Fig. Figure 2 is a three-dimensional structure diagram when a lifting plate of the present invention can be used during lowering. Fig. Figure 3 is a diagram of a sectional view of the three-dimensional structure of the present invention and of the downward folding. Fig. Figure 4 is a diagram of a sectional view of the three-dimensional structure of the present invention and of the extending and lifting during folded use. Fig. Figure 5 is a schematic diagram of the three-dimensional structure and lifting of a folding assembly and a synchronous buffer assembly of the present invention. Fig. Figure 6 is a three-dimensional structural side view of a folding assembly and a synchronous buffer assembly of the present invention. Fig. Figure 7 is a three-dimensional rear structural view of a folding assembly and a synchronous buffer assembly of the present invention. Fig. Figure 8 is a partial top view of the present invention. Fig. Figure 9 is a rear view of a partially disassembled three-dimensional structure of the present invention and a schematic diagram of unlocking and lifting an internally pressed stepless locking assembly. Fig. Figure 10 is a rear view of a front lower folding bar and a ratchet rack of the present invention and a schematic diagram of unlocking and lifting an internally pressed stepless locking assembly. Fig. Figure 11 is a rear view of a disassembled three-dimensional structure of a rear lower folding strip of the present invention. Fig. Figure 12 is a rear view of a disassembled three-dimensional structure of a front lower folding strip of the present invention. Fig. Figure 13 is a perspective rear view of a front lower folding strip and part of a synchronous buffer assembly of the present invention. Fig. Figure 14 is a perspective cross-sectional view of a clamping and stabilizing assembly and an outer housing of the present invention. Fig. Figure 15 is a schematic cross-sectional view of a pressed stepless locking assembly of the present invention after unlocking. Fig. Figure 16 is a perspective partial exploded view of a pressed stepless locking assembly during locking and a buffer assembly of the present invention. Fig. Figure 17 is a partially disassembled perspective view of a pressed stepless locking assembly of the present invention. Fig. Figure 18 is a partially disassembled perspective bottom view of an outer housing and a pressed stepless locking assembly of the present invention. Fig. Figure 19 is a cross-sectional view of the arrangement and a schematic unlocking diagram of a pressed stepless locking assembly of the present invention. DETAILED DESCRIPTION

[0028] The present invention is described in more detail below in conjunction with the accompanying drawings and exemplary embodiments, but those skilled in the art will recognize that these drawings are drawn only for the purpose of illustrating the preferred embodiments and should therefore not be regarded as limiting the scope of the present invention. Furthermore, the figures are intended only to conceptually demonstrate the composition or structure of the described subject matter and may contain exaggerated representations, and the figures are not necessarily to scale. The description is merely exemplary and is not intended to limit the scope of protection of the present invention.

[0029] It should also be noted that the terms “top”, “bottom”, “front”, “back”, “inside”, “outside”, “left”, “right”, clockwise, counterclockwise denote an orientation or positional relationship as illustrated in the figures, which serve only to describe the present invention and simplify the description, and do not denote or imply that the device or component in question necessarily has a particular orientation, must be set up and operated in a particular orientation, and therefore cannot be interpreted as a limitation of the invention.

[0030] As in the Fig. 1 and Fig. As shown in 6, A is on top, B is on the bottom, C is in front and D is in back. 1 Outer housing, 2 Lifting plate, 5 Internally pressed stepless locking assembly, 6 Pressed stepless locking assembly, 7 Clamping assembly; 11 Housing base, 12 Mechanical mounting frame, 13 Clamping hole, 14 Mechanical hole, 15 Limiting hole, 17 Lever groove, 19 Return spring; 21 anti-slip strips, 22 folding wave joint; 31 front lower folding strip, 32 rear lower folding strip, 33 front upper folding strip, 34 spring groove, 35 tension spring, 36 rear upper folding strip; 41 first synchronizing rack, 42 ​​second synchronizing rack, 43 speed change gear, 45 damper, 46 damping gear, 47 mounting buckle of speed change gear; 51 Ratchet rack, 52 Automatic lifting range, 53 Highest limit buckle, 54 Inner knob, 55 Lever bar, 56 Translation locking bar, 57 Lever connection hole, 58 Rotary shaft, 59 Movement limiter, 60 Lock; 61 Lever release bar, 62 Locking bar groove, 63 Movable locking bar, 64 Shaft connection hole of a lever bar, 65 Spring wire, 66 Release pressure bar, 67 Lever mounting frame, 68 Mounting frame groove, 69 Shaft connection hole of a locking bar; 71 Water cup clamp, 72 Limiting connection block, 73 Spring connecting strip, 75 Support spring.

[0031] As in Fig. Figures 1 to 7 show a foldable lifting device for a vehicle comprising an outer housing 1, a lifting plate 2, a folding assembly, and a synchronizing buffer assembly. The outer housing 1 includes a housing base 11. A lifting plate 2 is movably provided within the outer housing 1, and a folding assembly is provided between the underside of the lifting plate 2 and the top of the housing base 11.

[0032] The folding assembly consists of two sets of lateral V-shaped folding parts arranged symmetrically at the front and rear; the synchronous buffer assembly is positioned between the undersides of the two sets of symmetrically arranged lateral V-shaped folding parts.

[0033] The existing lifting or telescopic mechanism requires a certain base height. Generally, the base height is more than twice the net lifting or telescopic height, but the lifting or telescopic base of the folding mechanism is very low, meaning the height after folding is very low, and the extended span is very large, resulting in very high efficiency because the relative width is used as a support shaft connection, thus improving stability.

[0034] As in the Fig. As shown in Figures 3 to 8, the front and rear sets of symmetrically arranged lateral V-shaped folding sections are completely identical and comprise a front upper folding strip 33 and an axially connected front lower folding strip 31, a rear upper folding strip 36 and an axially connected rear lower folding strip 32. The upper ends of the front upper folding strip 33 and the rear upper folding strip 36 are each axially connected to the underside of the lifting plate 2, and the lower ends of the front lower folding strip 31 and the rear lower folding strip 32 are each axially connected to the top of the housing base 11. The synchronizing buffer assembly comprises a first synchronizing rack 41 and a second synchronizing rack 42, a speed-changing gear 43, and a damper 45. The first synchronizing rack 41 is fixedly mounted to the rear lower side of the front lower folding strip 31 and is arcuate.The arc-shaped first synchronous rack 41 takes a shaft pivot point of the lower end of the front lower folding strip 31 as the center of the circle.

[0035] The second synchronizing rack 42 is fixedly arranged on the front lower side of the rear lower folding bar 32; the second synchronizing rack 42 is arc-shaped. The arc-shaped second synchronizing rack 42 takes a pivot point of the lower end of the rear lower folding bar 32 as its center point.

[0036] The first synchronizing rack 41 and the second synchronizing rack 42 have the same radius, the first synchronizing rack 41 and the second synchronizing rack 42 have the same tooth die and mesh with each other for transmission.

[0037] The space between the front lower folding bar 31 and the rear lower folding bar 32 is slightly greater than the thickness of the second synchronizing rack 42. The lateral V-shaped folding sections can have varying relative widths, thus ensuring more stable folding and lifting. The folding assembly is formed by axially connecting the folding shaft joint 22 to the lifting plate 2 and the housing base 11, respectively.

[0038] The folding shaft joint 22 can be injection-molded in one piece with the lifting plate 2 or the housing base 11. Under the action of the synchronous buffer assembly, the lifting plate 2 can be raised and lowered more smoothly and stably within the outer housing 1.

[0039] As in Fig. 6, Fig. 8, Fig. As shown in Figure 9, the front and rear sets of symmetrically arranged lateral V-shaped folding sections are each provided with tension springs 35 at each shaft joint. The tension springs 35 are arranged in spring grooves 34 on the shaft joint. The tension springs 35 always hold the foldable assembly in an extended state, i.e., the lifting plate 2 in an upwardly extended state. The tension springs 35 can also be arranged on any pair of shaft joints at the top, middle, and bottom of the symmetrically arranged lateral V-shaped folding sections, or symmetrically at the lower end, the upper end, or in the middle of the shaft joint. As long as they are arranged symmetrically, the tension is balanced, and the lifting action is smoother. The total tension of the tension springs 35 is greater than the total weight of the water cup supported by the lifting plate 2, and it does not automatically decrease when the water cup is placed.

[0040] As in Fig. As shown in Figures 3 to 13 and 18, a mechanical hole 14 is arranged in the housing base 11. A front face of the mechanical hole 14 on the underside of the housing base 11 is fixedly fitted with a mechanical mounting frame 12. A speed-changing gear 43 is movably arranged in the mechanical mounting frame 12. The speed-changing gear 43 consists of a small gear and a large gear that are fixedly overlapping. The small gear engages with the first synchronizing rack 41 for transmission, and the large gear engages with a damping gear 46 in the damper 45 for transmission. A pivot shaft is provided on one side of the center of the speed-changing gear 43. The pivot shaft is movably arranged in the mechanical mounting frame 12, and the outer end of the pivot shaft is limited by the mounting buckle of the speed-changing gear 47.

[0041] The thickness of the first synchronizing rack 41 is greater than that of the second synchronizing rack 42. The first synchronizing rack 41 engages simultaneously with the second synchronizing rack 42 and the small gear in the speed-change gear 43 for transmission. The adjustment of the speed-change gear 43 and the damper 45 can cause the lifting plate 2 to rise naturally, slowly, and steadily in the lateral V-shaped folding sections under the action of the tension spring 35.

[0042] The damper 45 is a prior art device and is not further explained in the present invention.

[0043] As in Fig. 1, Fig. 3, Fig. 4, Fig. As shown in Figure 14, several groups of clamping assemblies are arranged evenly around the outer housing 1. The clamping assemblies consist of a water cup clamp 71 at the upper end, a limiting connection block 72 at the lower end, and a spring connecting strip 73 connecting the two. The outer housing 1 is provided with a clamping hole 13, a limiting hole 15, and a spring strip connecting groove at the positions corresponding to the several groups of clamping assemblies. The upper end of the limiting connection block 72 is shaft-connected on both sides of the limiting hole 15. The lower end of the spring connecting strip 73 is provided with a support spring 75, which always ejects the upper end of clamping assemblies 7 outwards.

[0044] Since the pivot point of the limiting connection block 72 is located on the upper side, the clamping assembly 7 will automatically tilt under the action of the support spring 75 without external force, and the lower end of the limiting connection block 72 extends into the outer housing 1. The water cup clamp 71 at the upper end, to which the spring connecting strip 73 is connected, naturally takes the pivot point as its center point and is ejected to the outside of the outer housing; the ejected distance can be limited as long as it does not impede the lifting of the lifting plate 2.

[0045] When the lifting plate 2 is pressed downwards and locked by an external force, the edge of the lifting plate 2 pushes the lower end of the limiting connection block 72 outwards, so that the clamping assembly 7 is vertical. At this point, the water cup clamp 71 naturally enters the outer housing 1. Under the action of the spring connecting strip 73, the water cup clamp 71 has a relative elastic force to stabilize the shaking of the water cup.

[0046] The design and technical construction of the clamping assembly 7 is significantly simpler than the prior art. It is designed for the complete lifting of the lifting plate 2 and for use as a flat plate of the outer housing 1. However, if the clamping assembly 7 of the present invention is used in other single or double cup holders and the lifting plate 2 rises and falls within the relative heights of the middle and lower sections in the outer housing, it is not necessary to lift above the water cup clamp 71, and the clamping assembly 7 need not be provided with the limiting connecting block 72 at the lower end and the support spring 75, as long as the lower end of the spring connecting strip 73 is attached to the lower end on the outside of the outer housing.

[0047] As in Fig. 7, Fig. 9, Fig. As shown in Figure 12, one side of the outer housing 1 is provided with an internally pressed stepless locking assembly 5, the rear of the first synchronizing rack 41 is fixedly fitted with a ratchet rack 51, the ratchet rack 51 is arc-shaped, the arc-shaped ratchet rack 51 and the first synchronizing rack 41 have the same circular center point, i.e. the shaft pivot point between the front lower folding bar 31 and the top of the housing base 11.

[0048] The upper end of the ratchet rack 51 is provided with several limiting ratchet teeth, the lower end of the several limiting ratchet teeth is an automatic lifting area 52, the lower end of the automatic lifting area 52 is a highest limit buckle 53.

[0049] As in Fig. 8, Fig. 9, Fig. 10, Fig. As shown in Figure 14, a lever groove 17 is provided on one side of the outer housing 1, a lever bar 55 is connected to a pivot shaft 58 in the lever groove 17, a movement limiter 59 is attached to the lower side of the housing base 11, a translational locking bar 56 is movably arranged in the movement limiter 59, the inner end of the translational locking bar 56 is provided with a lock 60, the lock 60 can lock the limiting ratchet.

[0050] The outer end of the translation locking bar 56 is provided with a lever connection hole 57, the lower end of the lever bar 55 is inserted into the lever connection hole 57, the upper end of the lever bar 55 is connected to an inner knob 54, the outer side of the outer housing 1 at the upper opening on the outer side of the inner knob 54 is fixedly fitted with a return spring 19, the return spring 19 always ejects the inner knob 54 in the direction inside the outer housing 1.

[0051] By adjusting the multiple ratchets at the upper end of the ratchet rack 51, the inner button 54 can be pushed from the inside out. The pivot shaft 58 in the lever bar 55 serves as a pivot point to move the translation locking bar 56, connected to the lever connection hole 57, towards the center in the housing base 11. The latch 60 is then disengaged from the limiting ratchet teeth on the ratchet rack 51 to achieve automatic upward lifting. The locking action of the return spring 19 then occurs automatically.

[0052] By adjusting the automatic lifting range 52 and the highest limit buckle 53 on the ratchet rack 51, the lifting plate 2 can be controlled to achieve an automatic lifting height within the relative height of its lower end in the outer housing 1. When it rises to or near the relative height of the inner knob 54, the latch 60 enters the automatic lifting range. At this point, you can release it without pressing the inner knob 54. The lifting plate 2 will automatically lift to the required height, and stopping is achieved by the highest limit buckle 53. The inner knob 54 cannot influence the lifting or lowering of the lifting plate 2.

[0053] The combination of the ratchet rack 51 and the locking mechanism 60 ensures that the lowering process is not affected when the lifting plate 2 is lowered under the influence of an external force. However, when automatic raising occurs under the tension spring 35, the inner knob 54 and the locking mechanism 60 can be used in the translational locking bar 56 to perform the locking and control function.

[0054] As in Fig. As shown in Figures 15 to 19, the underside of the housing base 11 is provided with a pressed, stepless locking assembly 6. The pressed, stepless locking assembly 6 comprises a lever release bar 61 and a release pressure bar 66. The underside of the housing base 11 is fixedly provided with a lever mounting frame 67. A locking bar groove 62 is arranged in the lever mounting frame 67. A movable locking bar 63 is axially connected in the locking bar groove 62. The outer end of the movable locking bar 63 abuts the upper left side of the large gear. The movable locking bar 63 is movably axially connected in the shaft connection hole of a locking bar 69 on the lever mounting frame 67.

[0055] The top of the movable locking bar 63 is inclined with a spring wire 65, the spring wire 65 always pushes the outer end of the movable locking bar 63 downwards, i.e. locking the large gear.

[0056] A lever release bar 61 is movably attached to the lever mounting frame 67, a mounting frame groove 68 for connecting to the lever mounting frame 67 is provided in the lever release bar 61, one end of the lever release bar 61 is mounted on the lower side of the movable locking bar 63, the upper side of the other end of the lever release bar 61 is connected to a release pressure bar 66.

[0057] The lever mounting frame 67, the mechanical mounting frame 12, and the folding shaft joint 22 can be injection-molded in one piece with the outer housing 1 and the housing base 11. The movable locking bar 63 is axially connected in the joint hole 59, and the lever release bar 61 is attached to the shaft connection hole of a lever bar 64 on the lever mounting frame 67.

[0058] As in Fig. As shown in Figure 15, the release pressure bar 66 is pressed downwards, the inner end of the lever release bar 61 drives the movable locking bar 63 to lift in order to disengage the large gear, i.e. unlocking takes place, the folding assembly can extend and the lifting plate 2 is automatically raised.

[0059] As in Fig. As shown in Figure 16, the movable locking bar 63 is pressed downwards by the action of the spring wire 65 without the application of an external force. Since the movable locking bar 63 is located on the upper left side of the large gear, it encounters resistance when the large gear rotates counterclockwise, and it remains locked without any external force. It can rotate freely when the large gear rotates clockwise.

[0060] This means that the lifting plate 2 can lower gently when the external force is applied to the downward pressure drop, but it can be unlocked and controlled during automatic lifting by pressing downwards through the release pressure bar 66.

[0061] Only one of the pressed stepless locking assembly 6 or the internally pressed stepless locking assembly 5 can be inserted into a cup holder; both cannot be implemented simultaneously. These are two technical solutions for the stepless locking assembly in the present invention.

[0062] As in Fig. As shown in Figure 1, anti-slip strips 21 are provided on the upper surface of the lifting plate 2. By adjusting the anti-slip strip 21, slippage can be prevented on the one hand, and on the other hand, the bottom of the cup can be prevented from wearing away the shine from the upper surface of the lifting plate 2.

Claims

[1] Folding lifting device for a vehicle comprising an outer housing (1), a lifting plate (2), a folding assembly and a synchronizing buffer assembly, wherein the outer housing (1) comprises a housing base (11), wherein the lifting plate (2) is movably provided within the outer housing (1), and the folding assembly is provided between the underside of the lifting plate (2) and the top of the housing base (11), The folding assembly consists of two sets of lateral V-shaped folding parts, the two sets of which are arranged symmetrically at the front and rear, and the synchronous buffer assembly is arranged between the undersides of the two sets of lateral V-shaped folding parts. the two sets of lateral V-shaped folding parts arranged symmetrically at the front and rear comprise a front upper folding strip (33) and an axially connected front lower folding strip (31), a rear upper folding strip (36) and an axially connected rear lower folding strip (32), the upper ends of the front upper folding strip (33) and the rear upper folding strip (36) being axially connected to the underside of the lifting plate (2), the lower ends of the front lower folding bar (31) and the rear lower folding bar (32) are each axially connected to the top of the housing base (11), the synchronizing buffer assembly comprises a first synchronizing rack (41) and a second synchronizing rack (42), the first synchronizing rack (41) is fixedly arranged on the rear lower side of the front lower folding bar (31) and the second synchronizing rack (42) is fixedly arranged on the front lower side of the rear lower folding bar (32), the first synchronizing rack (41) and the second synchronizing rack (42) have the same tooth shape and mesh together for transmission; characterized by, that the front and rear symmetrically arranged two sets of lateral V-shaped folding parts are completely identical, the synchronizing buffer assembly is provided with a speed-changing gear (43) and a damper (45), the first synchronizing rack (41) is arc-shaped, and the arc-shaped first synchronizing rack (41) takes the connection point of the axial connection of the lower end of the front lower folding strip (31) as the center of the circle; the second synchronizing rack (41) is arc-shaped, the arc-shaped second synchronizing rack (41) takes the connection point of the axial connection of the lower end of the rear lower folding strip (32) as the center of the circle; the first synchronizing rack (41) and the second synchronizing rack (41) have the same radius. [2] Foldable lifting device for a vehicle according to claim 1, characterized by, that the front and rear symmetrically arranged two sets of lateral V-shaped folding parts are each provided with tension springs (35) at each connection point of the axial connection, the tension springs (35) always keep the folding assembly in an extended state. [3] Foldable lifting device for a vehicle according to claim 1, characterized by, that a mechanical hole (14) is provided in the housing base (11), a front face of the mechanical hole (14) in the housing base (11) is fixedly provided with a mechanical mounting frame (12), a speed-changing gear (43) is movably arranged in the mechanical mounting frame, the speed-changing gear (43) consists of a small gear and a large gear, wherein the small gear and the large gear are fixedly connected and overlap, the small gear and the first synchronizing rack (41) mesh together for transmission, the large gear and a damping gear (46) in the damper (45) mesh together for transmission. [4] Foldable lifting device for a vehicle according to claim 1, characterized by, that several groups of clamping assemblies are arranged evenly around the outer housing (1), wherein the several groups of clamping assemblies each consist of a water cup clamp (71) at the upper end, a limiting connection block (72) at the lower end and a spring connecting strip (73), wherein the spring connecting strip (73) connects the water cup clamp (71) and the limiting connection block (72), the outer housing (1) is provided with a clamping hole (13), a limiting hole (72) and a spring strip connecting groove at the positions corresponding to the clamping assemblies, the upper end of the limiting connection block (72) is axially connected on both sides of the limiting hole (15), the lower end of the spring connecting strip (73) is provided with a support spring (75), the support spring (75) always ejects the upper end of clamping assemblies outwards. [5] Foldable lifting device for a vehicle according to claim 1, characterized by, that one side of the outer housing (1) is provided with an internally pressed stepless locking assembly (5), the rear of the first synchronizing rack (41) is fixedly provided with a ratchet rack, the ratchet rack is arcuate, the arcuate ratchet rack and the arcuate first synchronizing rack (41) have the same center of the circle; the upper end of the ratchet rack is provided with several limiting ratchet teeth, an automatic lifting area (52) is provided below the several limiting ratchet teeth, a buckle (53) is provided below the automatic lifting area (52) which limits the highest position. [6] Foldable lifting device for a vehicle according to claim 5, characterized by, that a lever groove (17) is provided on one side of the outer housing (1), a lever bar (55) is connected to a pivot shaft (58) in the lever groove (17), a movement limiter (59) is attached to the lower side of the housing base (11), a translational locking bar (56) is movably arranged in the movement limiter (59), the inner end of the translational locking bar is provided with a lock (60), the lock (60) can lock the limiting ratchet teeth;the outer end of the translation locking bar (56) is provided with a lever connection hole (57), the lower end of the lever bar (55) is inserted into the lever connection hole (57), the upper end of the lever bar (55) is connected to an inner knob (54), the outer side of the upper opening of the outer housing (1) lying on the outside of the inner knob is fixedly provided with a return spring (19), the return spring (19) always ejects the inner knob (54) towards the inside of the outer housing (1). [7] Foldable lifting device for a vehicle according to claim 3, characterized by, that the underside of the housing base (11) is provided with a pressed stepless locking assembly (5), the pressed stepless locking assembly (5) comprises a lever release bar (61) and a release pressure bar (66), the underside of the housing base (11) is fixedly provided with a lever mounting frame (67), a locking bar groove (62) is arranged in the lever mounting frame (67), a movable locking bar (63) is axially connected in the locking bar groove (62), the outer end of the movable locking bar (63) abuts the upper left side of the large gear, the top of the movable locking bar (63) is obliquely provided with a spring wire (65), the spring wire (65) always pushes the outer end of the movable locking bar (63) downwards, so that the large gear is locked. [8] Foldable lifting device for a vehicle according to claim 7, characterized by, that a lever release bar (61) is movably attached to the lever mounting frame (67), a mounting frame groove (68) for connecting to the lever mounting frame (67) is provided in the lever release bar (61), one end of the lever release bar (61) is mounted on the lower side of the movable locking bar (63), and the upper side of the other end of the lever release bar (61) is connected to a release pressure bar (66). [9] Foldable lifting device for a vehicle according to claim 1, characterized by , that anti-slip strips (21) are arranged on the top of the lifting plate (2).

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