Stereo garage access device and friction driving mechanism

Abstract

The invention provides a stereo garage access device and a friction driving mechanism. The friction driving mechanism comprises a base, a wheel carrier and a driving unit; the base comprises a bottom plate and two plate springs limited above the bottom plate; the two plate springs are oppositely arranged in the first direction and can elastically deform in the first direction. The two plate springs extend in the second direction. The two plate springs are limited on the bottom plate and located above the bottom plate, and the two plate springs are oppositely arranged in the first direction and can elastically deform in the first direction. The two wheel carriers are fixed to the two plate springs correspondingly, and the two plate springs can elastically deform in the first direction, so that the friction wheels on the two wheel carriers can move close to or away from each other in the first direction, and clamping of the vehicle carrying plate is kept. The positions between the friction wheels can be automatically adjusted to adapt to vibration and deformation of the vehicle carrying plate, and stable movement of the vehicle carrying plate is effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of parking garages, and in particular to a three-dimensional garage access device and a friction drive mechanism. Background Art

[0002] In a mechanical stereo garage, the friction wheel storage and retrieval device drives the friction plate on the vehicle loading plate through the friction wheel, and the vehicle loading plate moves under the action of friction force, thereby realizing the storage and retrieval of vehicles. The friction wheel storage and retrieval device does not damage the tires and the vehicle shakes less during the storage and retrieval process, so it is very popular.

[0003] In the related art, the friction wheel is mostly fixed and cannot be moved, so that the position of the friction wheel cannot be moved. When the vehicle loading plate vibrates or deforms, the vehicle loading plate is easily stuck or jammed. Summary of the invention

[0004] The object of the present invention is to provide a friction drive mechanism, the positions between the friction wheels of which can be automatically adjusted to adapt to the vibration and deformation of the vehicle loading plate, and effectively ensure the smooth movement of the vehicle loading plate.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] According to one aspect of the present invention, the present invention provides a friction drive mechanism, including a base, a wheel frame and a driving unit; the base includes a bottom plate, and two leaf springs limited above the bottom plate; the two leaf springs are arranged opposite to each other in a first direction and can undergo elastic deformation in the first direction; the two leaf springs extend along a second direction, the first direction and the second direction are respectively parallel to a horizontal plane, and the first direction is perpendicular to the second direction; the two wheel frames are respectively fixed on the two leaf springs; friction wheels are respectively arranged on the two wheel frames; the friction wheels on the two wheel frames are spaced apart along the first direction to clamp the vehicle carrier between the friction wheels on the two wheel frames; a driving single transmission is connected to the friction wheels on the two wheel frames to drive the friction wheels on the two wheel frames to rotate towards each other.

[0007] In some embodiments of the present application, the friction wheel is rotatably connected to the corresponding wheel frame via a rotating shaft; a transmission gear is fixed on the outer periphery of each rotating shaft; and the driving unit is wound around and connected to all the transmission gears via a chain.

[0008] In some embodiments of the present application, the wheel frame includes a first wheel frame and a second wheel frame spaced apart along a first direction; a tensioning structure is provided on the first wheel frame, and the tensioning structure includes a tensioning frame, a tensioning wheel, and an elastic member; the tensioning wheel is rotatably connected to the tensioning frame around its own axis; the chain is wound around the tensioning wheel; the tensioning frame is slidably connected to the first wheel frame, and the elastic member is clamped between the first wheel frame and the tensioning frame to drive the tensioning wheel to tension the chain.

[0009] In some embodiments of the present application, a first connecting shaft is arranged between the first wheel frame and the tensioning frame; both ends of the first connecting shaft are respectively connected to the first wheel frame and the tensioning frame, so that the first wheel frame can slide relative to the first wheel frame along the axial direction of the first connecting shaft.

[0010] In some embodiments of the present application, the tensioning frame includes a connecting plate and two wing plates; the two wing plates are spaced apart and arranged opposite to each other up and down; the same side of the two wing plates are respectively connected to the connecting plate; the two ends of the rotating shaft of the tensioning wheel are respectively passed through the two wing plates; a top plate is formed at one end of the connecting plate, and one end of the first connecting shaft is passed through the top plate; the elastic member is clamped between the top plate and the first wheel frame.

[0011] In some embodiments of the present application, a long hole is opened on the connecting plate; the length direction of the long hole is parallel to the sliding direction of the tensioning frame; a second connecting shaft is provided on the first wheel frame, and the second connecting shaft is passed through the long hole.

[0012] In some embodiments of the present application, a protruding fastening portion is formed on the side of the second connecting shaft facing away from the first wheel frame; one side of the connecting plate is attached to the second wheel frame, and the other side of the connecting plate is attached to the fastening portion.

[0013] In some embodiments of the present application, the wheel frame includes an extension plate and two fixed plates; the extension plate is fixed on the leaf spring, and the two fixed plates protrude from one side of the extension plate along the second direction; the two fixed plates are spaced apart from each other; the rotating shaft passes through the two fixed plates up and down; the rotating shaft can rotate around its own axis relative to the fixed plates; the friction wheel is arranged at the upper end of the rotating shaft and is located above the two fixed plates; the transmission gear is located between the two fixed plates.

[0014] In some embodiments of the present application, the side of the extension plate facing away from the fixed plate is attached to and fixed on the leaf spring; the fixed plate extends along the second direction, and both ends of the fixed plate along the second direction respectively extend beyond the extension plate; the rotating shaft is arranged at both ends of the fixed plate along the second direction; and the transmission gear is located below the leaf spring.

[0015] In some embodiments of the present application, the fixing plate below is attached to the upper surface of the base plate.

[0016] In some embodiments of the present application, there is a gap of 0-4 mm between the fixing plate below and the upper surface of the bottom plate.

[0017] In some embodiments of the present application, the wheel frame is fixed to the corresponding leaf spring via a fixed shaft, and the extension plates of the two wheel frames are fixed to opposite sides of the two leaf springs; the opposite ends of the fixed shafts on the two wheel frames abut against each other.

[0018] In some embodiments of the present application, the large end of the fixed shaft is located on the side of the leaf spring facing away from the wheel frame, and one or more detachable gaskets are arranged between the large end of the fixed shaft and the leaf spring.

[0019] In some embodiments of the present application, the friction wheel is located above the wheel frame; a through hole is opened on the bottom plate extending upward and downward; a protruding positioning column is formed at the bottom of the wheel frame; the positioning column is passed through the through hole and can move in the through hole along a first direction; a protruding reinforcement plate is formed on the bottom surface of the bottom plate, and a fastening shaft is passed between the reinforcement plate and the positioning column; the fastening shaft extends along the first direction.

[0020] In some embodiments of the present application, a protruding fixing column and a protruding supporting plate are formed on the upper surface of the base plate; one end of the leaf spring is fixed to the fixing column, and the other end is passed through the supporting plate.

[0021] In some embodiments of the present application, a through hole is formed on the support plate; one end of the leaf spring is inserted into the through hole; the through hole has a preset length along a first direction, and one end of the leaf spring inserted into the through hole can move a preset length in the through hole along the first direction.

[0022] In some embodiments of the present application, a fixing member is connected between the two leaf springs; the fixing member is fixed to one end of the two leaf springs that passes through the support plate.

[0023] According to another aspect of the present application, the present application provides a three-dimensional garage access device, including a fixed frame, a friction drive mechanism; and a vehicle loading plate; the bottom plate of the friction drive mechanism is fixed on the fixed frame; the vehicle loading plate is clamped between the friction wheels on the two wheel frames.

[0024] In some embodiments of the present application, a plurality of fixing holes extending upward and downward are provided on the base plate; the lower surface of the base plate is supported on the fixing frame; the fixing hole extends along a first direction; a fastener is provided between the fixing hole and the fixing frame, and the fastener is passed through the fixing hole.

[0025] In some embodiments of the present application, a support plate is further provided on the bottom plate; compression springs are respectively provided on two sides of the support plate opposite to each other along the first direction; the compression spring extends along the first direction; and the two ends of the compression spring respectively abut against the support plate and the fixing frame.

[0026] It can be seen from the above technical solution that the present invention has at least the following advantages and positive effects:

[0027] In the present invention, two leaf springs are limited on the bottom plate and are located above the bottom plate. The two leaf springs are arranged opposite to each other in the first direction and can be elastically deformed in the first direction. Two wheel frames are respectively fixed on the two leaf springs. The two leaf springs can be elastically deformed in the first direction, so that the friction wheels on the two wheel frames can move relatively close to or away from each other in the first direction to maintain the clamping of the vehicle loading plate. The position between the friction wheels can be automatically adjusted to adapt to the vibration and deformation of the vehicle loading plate, effectively ensuring the smooth movement of the vehicle loading plate.

[0028] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0029] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0031] Figure 1 It is a structural schematic diagram of the three-dimensional garage access device of the present invention.

[0032] Figure 2It is a structural schematic diagram of the friction drive mechanism of the present invention.

[0033] Figure 3 It is a partial structural schematic diagram of the friction drive mechanism of the present invention, wherein the chain is not shown.

[0034] Figure 4 yes Figure 3 A structural schematic diagram of the friction drive mechanism from another perspective is shown.

[0035] Figure 5 It is a structural schematic diagram of the base of the present invention from one viewing angle.

[0036] Figure 6 It is a structural schematic diagram of the base of the present invention from another viewing angle.

[0037] Figure 7 It is a structural schematic diagram of the bottom plate of the present invention from one viewing angle.

[0038] Figure 8 It is a structural schematic diagram of the bottom plate of the present invention from another viewing angle.

[0039] Fig. 9 yes Figure 5 Enlarged view of point A in the middle.

[0040] Fig.10 yes Figure 7 Enlarged view of point B in the middle.

[0041] Fig.11 It is a structural schematic diagram of the leaf spring of the present invention.

[0042] Fig.12 It is a schematic diagram of the cooperation between the wheel carrier and the friction wheel of the present invention.

[0043] Fig.13 yes Fig.12 A schematic diagram of the structure from another perspective of the structure shown.

[0044] Fig.14 It is a structural schematic diagram of a wheel carrier of the present invention.

[0045] Fig.15 It is a schematic structural diagram of the tensioning structure of the present invention on the first wheel frame.

[0046] Fig.16 It is a structural schematic diagram of the tensioning structure of the present invention from one viewing angle.

[0047] Fig.17 It is a structural schematic diagram of the tensioning structure of the present invention from another perspective.

[0048] The reference numerals are as follows: 10, friction drive mechanism; 20, fixing frame; 30, vehicle loading plate; 31, loading plate; 32, clamping plate; 40, supporting frame;

[0049] 100, base; 110, bottom plate; 111, fixing hole; 112, fastener; 113, abutment plate; 114, fixing column; 115, support plate; 116, perforation; 117, reinforcing rib; 118, through hole; 119, positioning column; 101, fastening shaft; 102, reinforcing plate; 120, leaf spring; 121, clamping hole; 130, pressing plate; 140, fixing piece; 150, gasket;

[0050] 200, wheel frame; 210, extension plate; 220, fixed plate; 230, fixed shaft; 240, tensioning connecting plate; 300, friction wheel; 310, rotating shaft; 320, transmission gear; 400, driving unit; 410, chain;

[0051] 500, tensioning structure; 510, tensioning frame; 511, connecting plate; 512, wing plate; 513, top plate; 514, long hole; 520, tensioning wheel; 530, elastic member; 540, first connecting shaft; 550, second connecting shaft. DETAILED DESCRIPTION

[0052] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more comprehensive and complete and will fully convey the concept of the example embodiments to those skilled in the art.

[0053] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0054] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application.

[0055] For ease of description and understanding, the state of the three-dimensional garage access device in use is used as a reference. The vehicle is supported above the three-dimensional garage access device; the moving direction of the three-dimensional garage access device is the front-to-back direction. The direction horizontal and perpendicular to the front-to-back direction is the left-to-right direction. The left-to-right direction is the first direction, and the front-to-back direction is the second direction. Both the first direction and the second direction are parallel to the horizontal plane, and the first direction is perpendicular to the second direction.

[0056] Figure 1 It is a structural schematic diagram of the three-dimensional garage access device of the present invention.

[0057] See also Figure 1 The present application provides a three-dimensional garage access device, which is mainly used for accurate storage and transportation of vehicles. The three-dimensional garage access device includes a friction drive mechanism 10, a fixed frame 20, and a vehicle loading plate 30. The friction drive mechanism 10 is fixed on the fixed frame 20, and the friction drive mechanism 10 is used to drive the vehicle loading plate 30 to move along the second direction to store or take the vehicle on the vehicle loading plate 30 out of the garage.

[0058] In some embodiments, the three-dimensional garage access device further includes a support frame 40, which is disposed on both sides of the friction drive mechanism 10 along the first direction, and the upper ends of the support frame 40 are formed at both ends of the vehicle loading plate 30 in the first direction, and the upper ends of the support frame 40 support the vehicle loading plate 30 to play a major bearing role. A rolling shaft or roller is disposed between the upper end of the support frame 40 and the lower surface of the vehicle loading plate 30, so that the vehicle loading plate 30 can move relative to the support frame 40 along the first direction.

[0059] Figure 2 It is a structural schematic diagram of the friction drive mechanism of the present invention. Figure 3 It is a partial structural schematic diagram of the friction drive mechanism of the present invention, wherein the chain is not shown. Figure 4 yes Figure 3 A structural schematic diagram of the friction drive mechanism from another perspective is shown.

[0060] See also Figures 1 to 4 The friction drive mechanism 10 is fixed on the fixed frame 20. The friction drive mechanism 10 includes a base 100, a wheel frame 200 arranged on the base 100, and a friction wheel 300 arranged on the wheel frame 200. The base 100 is used to be fixed on the fixed frame 20, the wheel frame 200 is fixed above the base 100, and the friction wheel 300 is arranged on the wheel frame 200. The friction wheel 300 is rotatably connected to the wheel frame 200 around the axial direction in the vertical direction. There are multiple friction wheels 300, and the multiple friction wheels 300 are arranged at intervals along the first direction. The vehicle carrier 30 is clamped between the friction wheels 300. The friction wheels 300 spaced apart in the first direction rotate toward each other, thereby driving the vehicle carrier 30 to move along the second direction.

[0061] The vehicle carrier plate 30 includes a horizontally arranged carrier plate 31 and a clamping plate 32 protruding from the lower surface of the carrier plate 31; the clamping plate 32 is used to be clamped between the friction wheels 300. The rotation of the friction wheels 300 drives the clamping plate 32 to move along the second direction, thereby driving the vehicle carrier plate 30 to move along the second direction.

[0062] Figure 5 It is a structural schematic diagram of the base 100 of the present invention from one viewing angle. Figure 6 It is a structural schematic diagram of the base 100 of the present invention from another perspective. Figure 7 It is a structural schematic diagram of the bottom plate 110 of the present invention from one viewing angle.

[0063] Figure 8 It is a structural schematic diagram of the bottom plate 110 of the present invention from another perspective. Fig. 9 yes Figure 5 Enlarged view of point A in the middle. Fig.10 yes Figure 7 Enlarged view of point B in the middle.

[0064] See also Figures 2 to 10 The base 100 includes a bottom plate 110 and two leaf springs 120 limited above the bottom plate 110. The bottom plate 110 is fixed on the fixing frame 20, and the leaf springs 120 are used to connect the wheel frame 200. The leaf springs 120 are elastic and can be elastically deformed, thereby driving the friction wheel 300 on the leaf springs 120 to move.

[0065] The bottom plate 110 is provided with a plurality of fixing holes 111 extending vertically therethrough; the lower surface of the bottom plate 110 is supported on the fixing frame 20; a fastener 112 is provided between the fixing hole 111 and the fixing frame 20, and the fastener 112 is passed through the fixing hole 111. The lower end of the fastener 112 is fixed to the fixing frame 20, thereby fixing the bottom plate 110 to the fixing frame 20.

[0066] In some embodiments, the fixing hole 111 extends along the first direction; thereby, the position of the base plate 110 relative to the fixing frame 20 can be adjusted along the first direction to adjust the position of the friction wheel 300 on the wheel frame 200 along the first direction to ensure that the clamping plate 32 of the carrier plate 30 is located between the two friction wheels 300.

[0067] There are a plurality of fixing holes 111 . The plurality of fixing holes 111 are arranged at the corners of the bottom plate 110 , and the bottom plate 110 is stably fixed on the fixing frame 20 through the connection of the plurality of fixing holes 111 on the fixing frame 20 .

[0068] In some embodiments, a support plate 113 is further provided on the bottom plate 110; compression springs (not shown in the figure) are respectively provided on two opposite sides of the support plate 113 along the first direction. The compression springs extend along the first direction, and the two ends of the compression springs respectively abut against the support plate 113 and the fixing frame 20 to further position the bottom plate 110 in the first direction, thereby ensuring the stability and reliability of the position of the bottom plate 110 along the first direction.

[0069] In one embodiment, two abutment plates 113 are respectively disposed at both ends of the bottom plate 110 in the second direction, and compression springs are disposed on opposite sides of the two abutment plates 113. The abutment plates 113 are disposed on the upper surface or the lower surface of the bottom plate 110.

[0070] Fig.11 It is a structural schematic diagram of the leaf spring of the present invention.

[0071] See also Figures 3 to 11 The two leaf springs 120 are limited on the bottom plate 110 and are located above the bottom plate 110. The two leaf springs 120 are arranged opposite to each other in the first direction and can be elastically deformed in the first direction. The two leaf springs 120 extend along the second direction. The two wheel frames 200 are respectively fixed on the two leaf springs 120. The two leaf springs 120 can be elastically deformed in the first direction, so that the friction wheels 300 on the two wheel frames 200 can move relatively close to or away from each other in the first direction to keep the vehicle carrier 30 clamped.

[0072] The length direction of the leaf spring 120 is along the second direction. One end of the leaf spring 120 is fixed on the bottom plate 110 , and the other end is penetrated on the bottom plate 110 , so that the leaf spring 120 is more likely to elastically deform to better adapt to the movement of the vehicle loading plate 30 .

[0073] In some implementations, a protruding fixing column 114 is formed on the upper surface of the bottom plate 110, and one end of the leaf spring 120 is fixed on the fixing column 114. A clamping hole 121 is formed on one end of the leaf spring 120, and the clamping hole 121 is sleeved on the fixing column 114, so that one end of the leaf spring 120 is fixed on the fixing column 114. The clamping hole 121 runs through from top to bottom, and one end of the leaf spring 120 is clamped on the fixing column 114 through the clamping hole 121, and the upper end of the fixing seat limits the leaf spring 120 on the fixing column 114 through a nut. For example, one end of the leaf spring 120 is wound to form the clamping hole 121.

[0074] In one embodiment, a step is formed on the fixing column 114 , and the lower end of the leaf spring 120 is formed on the step, so that a gap is formed between the lower end of the leaf spring 120 and the upper surface of the bottom plate 110 .

[0075] In another embodiment, a reinforcing rib 117 is provided between the fixing column 114 and the bottom plate 110, and the reinforcing rib 117 and the upper end form a step. The reinforcing rib 117 can not only play a role in reinforcing the fixing column 114, but also play a role in supporting the lower end of the leaf spring 120. A plurality of reinforcing ribs 117 are provided around the axis of the fixing seat.

[0076] In one embodiment, two leaf springs 120 are arranged at intervals along the first direction, and two fixing posts 114 are arranged on the bottom plate 110 to correspond to the two leaf springs 120 . The two leaf springs 120 are arranged at intervals along the first direction.

[0077] In the present application, a protruding support plate 115 is formed on the upper surface of the bottom plate 110. One end of the leaf spring 120 is fixed to the fixing column 114, and the other end is passed through the support plate 115. The leaf spring 120 is passed through the support plate 115 so that the end of the leaf spring 120 passed through the support plate 115 can move along the second direction to facilitate the deformation of the leaf spring 120.

[0078] A through hole 116 is provided on the support plate 115; one end of the leaf spring 120 is inserted into the through hole 116; the through hole 116 has a preset length along the first direction, and one end of the leaf spring 120 inserted into the through hole 116 can move a preset length along the first direction within the through hole 116 to adapt to the position and movement of the vehicle loading plate 30, thereby more effectively avoiding the vehicle loading plate 30 from getting stuck.

[0079] There is a gap between the lower end of the leaf spring 120 and the upper surface of the bottom plate 110. There is a gap between the lower edge of the through hole 116 and the upper surface of the bottom plate 110. After the leaf spring 120 is inserted into the through hole 116, there is a gap between one end of the leaf spring 120 inserted into the through hole 116 and the bottom plate 110.

[0080] In some embodiments, the support plate 115 has two through holes 116, and the two leaf springs 120 are respectively disposed in the two through holes 116. In other embodiments, the support plate 115 has one through hole 116, and the two leaf springs 120 are disposed in the same through hole 116.

[0081] In one embodiment, the upper end of the through hole 116 is open to facilitate placing the leaf spring 120 in the through hole 116. A detachable pressing plate 130 is provided at the upper end of the support plate 115, and the pressing plate 130 is pressed on the upper end of the leaf spring 120 and closes the upper end of the through hole 116. The pressing plate 130 is fixed to the upper end of the support plate 115 by bolts.

[0082] The pressing plate 130 presses the leaf spring 120 downward onto the support plate 115. The pressing plate 130 presses the leaf spring 120 downward onto the lower edge of the through hole 116 of the support plate 115 to limit the up and down movement of the leaf spring 120. The nut on the upper end of the fixing column 114 can also play a role in limiting the up and down movement of the plate.

[0083] A fixing member 140 is connected between the two leaf springs 120; the fixing member 140 is fixed to one end of the two leaf springs 120 that passes through the support plate 115. The fixing member 140 fixes one end of the two leaf springs 120 to clamp one end of the two leaf springs 120, thereby ensuring that the two leaf springs 120 are clamped toward one end of the support plate 115, thereby ensuring the clamping force or friction force on the vehicle carrier plate 30.

[0084] After the fixing member 140 clamps the two leaf springs 120 , after one end of the two leaf springs 120 passing through the through hole 116 slides along the first direction, the two leaf springs 120 can still be clamped, thereby ensuring the clamping force on the vehicle loading plate 30 .

[0085] In a specific embodiment, one end of the leaf spring 120 facing the support plate 115 is inserted into the through hole 116 and can move along the second direction in the through hole 116. One end of the leaf spring 120 facing the fixing column 114 is sleeved outside the fixing column 114, and the leaf spring 120 can rotate around the axis of the fixing column 114. The fixing member 140 is connected to one end of the leaf spring 120 facing the support plate 115 to maintain the positional relationship between the two leaf springs 120.

[0086] Fig.12 It is a schematic diagram of the cooperation between the wheel carrier and the friction wheel of the present invention. Fig.13 yes Fig.12 A schematic diagram of the structure from another perspective of the structure shown. Fig.14 It is a structural schematic diagram of a wheel carrier of the present invention.

[0087] See also Figures 2 to 14 , there are two wheel frames 200, and the wheel frames 200 are respectively fixed on two leaf springs 120; friction wheels 300 are respectively arranged on the two wheel frames 200. The friction wheels 300 on the two wheel frames 200 are arranged at intervals along the first direction, so as to clamp the vehicle-carrying plate 30 between the friction wheels 300 on the two wheel frames 200. The two leaf springs 120 can be elastically deformed in the first direction, so that the friction wheels 300 on the two wheel frames 200 can be driven by the two wheel frames 200 to move away from and close to each other. Through the elasticity between the leaf springs 120, the clamping force of the friction wheels 300 on the vehicle-carrying plate 30 is provided. Through the elasticity between the two leaf springs 120, the position between the friction wheels 300 on the two wheel frames 200 can be automatically adjusted to adapt to the vibration and deformation of the vehicle-carrying plate 30, and effectively ensure the smooth movement of the vehicle-carrying plate 30.

[0088] The friction wheels 300 are rotatably connected to the wheel frame 200 around the axis in the vertical direction, and the two friction wheels 300 rotate towards each other, thereby driving the vehicle carrier 30 to move along the second direction. The friction wheels 300 are rotatably connected to the corresponding wheel frame 200 through the rotating shaft 310.

[0089] In one embodiment, the driving unit 400 is connected to the friction wheels 300 on the two wheel frames 200 to drive the friction wheels 300 on the two wheel frames 200 to rotate towards each other, thereby providing a force to drive the vehicle carrier 30 to move.

[0090] The friction wheel 300 is rotatably connected to the corresponding wheel frame 200 via a rotating shaft 310 ; a transmission gear 320 is fixed on the outer periphery of each rotating shaft 310 ; and the driving unit 400 is wound around and connected to all the transmission gears 320 via a chain 410 .

[0091] In some embodiments, two friction wheels 300 are respectively disposed on each wheel frame 200, and the number of transmission gears 320 is arranged corresponding to the number of friction wheels 300. The two friction wheels 300 on the same wheel frame 200 are spaced apart along the second direction. The chain 410 is wound around the four transmission gears 320 on the two wheel frames 200, so that the friction wheels 300 on the two wheel frames 200 can rotate towards each other.

[0092] In other embodiments, one or more friction wheels 300 are disposed on each wheel frame 200. For example, each wheel frame 200 is provided with one, three, four or five friction wheels 300 of different numbers.

[0093] In one embodiment, the wheel carrier 200 is fixed to the upper end of the leaf spring 120. In another embodiment, two wheel carriers 200 are fixed to the opposite sides or opposite sides of the two leaf springs 120.

[0094] In some embodiments, the wheel frame 200 includes an extension plate 210 and two fixing plates 220. The extension plate 210 is fixed on the leaf spring 120 so that the wheel frame 200 can move with the leaf spring 120. The two fixing plates 220 protrude from one side of the extension plate 210 along the second direction; the two fixing plates 220 are arranged at intervals up and down, and the rotating shaft 310 passes through the two fixing plates 220 up and down; the rotating shaft 310 can rotate relative to the fixing plates 220 around its own axis; the friction wheel 300 is arranged at the upper end of the rotating shaft 310 and is located above the two fixing plates 220; the transmission gear 320 is located between the two fixing plates 220.

[0095] In the present application, there is a gap between the lower end of the leaf spring 120 and the upper surface of the base plate 110; the side of the extension plate 210 facing away from the fixed plate 220 is attached to and fixed on the leaf spring 120; the fixed plate 220 extends along the second direction, and both ends of the fixed plate 220 along the second direction respectively exceed the extension plate 210; the rotating shaft 310 is arranged at both ends of the fixed plate 220 along the second direction; the transmission gear 320 is located below the leaf spring 120, so as to facilitate the arrangement of the chain 410 between the transmission gears 320 and avoid interference between the leaf spring 120 and the chain 410.

[0096] In some embodiments, two fixing plates 220 are arranged at intervals in the upper and lower parts, and the friction wheel 300 is located above the two fixing plates 220; the upper part of the extension plate 210 is fixedly connected to the leaf spring 120. The lower fixing plate 220 is attached to the upper surface of the bottom plate 110. When the upper end of the friction wheel 300 is clamped on the vehicle carrier plate 30, the lower fixing plate 220 is attached to the upper surface of the bottom plate 110, which can effectively prevent the upper ends of the wheel frame 200 and the leaf spring 120 from twisting downward.

[0097] In one embodiment, the two fixed plates 220 are spaced apart from each other, and the friction wheel 300 is located above the two fixed plates 220; the upper surface of the extension plate 210 is fixedly connected to the upper and lower fixed plates 220 of the leaf spring 120, and there is a 0-4mm gap between the upper surface of the bottom plate 110, which can effectively prevent the wheel frame 200 and the upper end of the leaf spring 120 from twisting downward.

[0098] In one embodiment, the friction wheel 300 is located above the wheel frame 200; a through hole 118 is formed on the bottom plate 110 and runs through the bottom and top; a protruding positioning column 119 is formed at the bottom of the wheel frame 200; the positioning column 119 is inserted into the through hole 118 and can move in the through hole 118 along a first direction; a protruding reinforcing plate 102 is formed on the bottom surface of the bottom plate 110, and a fastening shaft 101 is inserted between the reinforcing plate 102 and the positioning column 119; the fastening shaft 101 extends along the first direction, and the positioning column 119 can move along the first direction to enable the wheel frame 200 to move along the first direction. The friction wheel 300 is located above the wheel frame 200, and the fastening shaft 101 is set below the wheel frame 200, so as to limit the downward twisting of the upper end of the wheel frame 200.

[0099] In this embodiment, the wheel frame 200 includes an extension plate 210 and two fixing plates 220. The extension plate 210 is fixed on the leaf spring 120 so that the wheel frame 200 can move with the leaf spring 120. The two fixing plates 220 protrude from one side of the extension plate 210 along the second direction; the two fixing plates 220 are arranged at intervals up and down, and the positioning column 119 protrudes from the lower surface of the lower fixing plate 220.

[0100] In some embodiments, the wheel frame 200 is fixed to the corresponding leaf spring 120 via a fixed shaft 230, and the extension plates 210 of the two wheel frames 200 are fixed to the opposite sides of the two leaf springs 120; the opposite ends of the fixed shafts 230 on the two wheel frames 200 abut against each other so that there is a preset initial distance between the leaf springs 120, thereby allowing a preset distance between the two friction wheels 300.

[0101] In a specific embodiment, the large end of the fixed shaft 230 is located on the side of the leaf spring 120 facing away from the wheel frame 200, and one or more detachable gaskets 150 are arranged between the large end of the fixed shaft 230 and the leaf spring 120. By adjusting the number of gaskets 150, the length of the fixed shaft 230 between the two leaf springs 120 can be adjusted. When the two fixed shafts 230 abut against each other, the initial distance between the leaf springs 120 can be adjusted by using different numbers of gaskets 150.

[0102] In another embodiment, two wheel carriers 200 are fixed on opposite sides of two leaf springs 120 , and one or more gaskets 150 are disposed between the wheel carriers 200 and the leaf springs 120 for adjusting the distance between the two wheel carriers 200 and the distance between the friction wheels 300 .

[0103] Fig.15 It is a schematic structural diagram of the tensioning structure of the present invention on the first wheel frame. Fig.16 It is a structural schematic diagram of the tensioning structure of the present invention from one viewing angle. Fig.17 It is a structural schematic diagram of the tensioning structure of the present invention from another perspective.

[0104] See also Figures 2 to 17 The wheel frame 200 includes a first wheel frame 200 and a second wheel frame 200 spaced apart along a first direction. The first wheel frame 200 can be any one of the two wheel frames 200. A tensioning structure 500 is provided on the first wheel frame 200, and the tensioning structure 500 includes a tensioning frame 510, a tensioning wheel 520, and an elastic member 530; the tensioning wheel 520 is rotatably connected to the tensioning frame 510 around its own axis; the chain 410 is wound around the tensioning wheel 520; the tensioning frame 510 is slidably connected to the first wheel frame 200, and the elastic member 530 is clamped between the first wheel frame 200 and the tensioning frame 510 to drive the tensioning wheel 520 to tension the chain 410, so as to maintain the connection and transmission reliability of the transmission gears 320 on the two wheel frames 200.

[0105] In some embodiments, a first connecting shaft 540 is disposed between the first wheel frame 200 and the tensioning frame 510; both ends of the first connecting shaft 540 are respectively connected to the first wheel frame 200 and the tensioning frame 510, so that the first wheel frame 200 can slide relative to the first wheel frame 200 along the axis direction of the first connecting shaft 540. For example, one end of the first connecting shaft 540 is fixed to the first wheel frame 200, and the other end is passed through the tensioning frame 510, so that the tensioning frame 510 can slide along the first connecting shaft 540. The elastic member 530 drives the tensioning frame 510 to move to tension the chain 410.

[0106] In one embodiment, the tensioning frame 510 includes a connecting plate 511 and two wing plates 512; the two wing plates 512 are spaced apart and arranged opposite to each other; the same side of the two wing plates 512 is respectively connected to the connecting plate 511; the two ends of the rotating shaft of the tensioning wheel 520 are respectively passed through the two wing plates 512, so that the tensioning wheel 520 can rotate around the axis in the vertical direction.

[0107] An abutting plate 513 is formed at one end of the connecting plate 511, and one end of the first connecting shaft 540 is passed through the abutting plate 513; the elastic member 530 is clamped between the abutting plate 513 and the first wheel frame 200. The abutting plate 513 is formed by bending and extending from one end of the connecting plate 511.

[0108] In one embodiment, a protruding tensioning plate 240 is formed on the first wheel frame, and one end of the first connecting shaft is fixed on the tensioning plate 240. The elastic member 530 is clamped between the tensioning plate 240 and the abutting plate.

[0109] In some embodiments, a long hole 514 is formed on the connecting plate 511; the length direction of the long hole 514 is parallel to the sliding direction of the tensioning frame 510; a second connecting shaft 550 is provided on the first wheel frame 200, and the second connecting shaft 550 is passed through the long hole 514. The second connecting shaft 550 is passed through the long hole 514 to guide the tensioning wheel 520 when it slides.

[0110] In one embodiment, a protruding fastening portion is formed on the side of the second connecting shaft 550 facing away from the first wheel frame 200; one side of the connecting plate 511 is attached to the second wheel frame 200, and the other side of the connecting plate 511 is attached to the fastening portion. For example, the second connecting shaft 550 is a bolt, and the fastening portion is a nut fixed on the bolt.

[0111] In one embodiment, the driving unit 400 is fixed on the first wheel frame 200 , and the driving unit 400 is a motor.

[0112] In the present application, two leaf springs 120 are limited on the bottom plate 110 and are located above the bottom plate 110. The two leaf springs 120 are arranged opposite to each other in the first direction and can be elastically deformed in the first direction; the two leaf springs 120 extend along the second direction. The two wheel frames 200 are respectively fixed on the two leaf springs 120. The two leaf springs 120 can be elastically deformed in the first direction, so that the friction wheels 300 on the two wheel frames 200 can move relatively close to or away from each other in the first direction to maintain the clamping of the vehicle carrier plate 30. The position between the friction wheels 300 can be automatically adjusted to adapt to the vibration and deformation of the vehicle carrier plate 30, effectively ensuring the smooth movement of the vehicle carrier plate 30.

[0113] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0114] In this application, unless otherwise clearly specified and limited, the terms "assembly", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In the description of this specification, the description of the reference terms "some embodiments", "exemplarily", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, in the absence of contradiction, technicians in this field can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples.

[0115] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and description of the present application should fall within the scope of the patent of this application.

Claims

1. A friction drive mechanism, characterized in that: include: A base, comprising a bottom plate and two leaf springs limited above the bottom plate; The two leaf springs are arranged opposite to each other in a first direction and can be elastically deformed in the first direction; the two leaf springs extend along a second direction, the first direction and the second direction are respectively parallel to a horizontal plane, and the first direction is perpendicular to the second direction; Two wheel frames; the two wheel frames are respectively fixed on the two leaf springs; the two wheel frames are respectively provided with friction wheels; The friction wheels on the two wheel frames are arranged at intervals along a first direction, so as to clamp the vehicle carrier plate between the friction wheels on the two wheel frames; The driving unit is transmission-connected to the friction wheels on the two wheel frames so as to drive the friction wheels on the two wheel frames to rotate towards each other.

2. The friction drive mechanism according to claim 1, characterized in that: The friction wheel is rotatably connected to the corresponding wheel frame via a rotating shaft; a transmission gear is fixed on the outer periphery of each rotating shaft; and the driving unit is wound around and connected to all the transmission gears via a chain.

3. The friction drive mechanism according to claim 2, characterized in that: The wheel frame comprises a first wheel frame and a second wheel frame spaced apart in a first direction; a tensioning structure is arranged on the first wheel frame, and the tensioning structure comprises a tensioning frame, a tensioning wheel, and an elastic member; the tensioning wheel is rotatably connected to the tensioning frame around its own axis; the chain is wound around the tensioning wheel; The tensioning frame is slidably connected to the first wheel frame, and the elastic member is clamped between the first wheel frame and the tensioning frame to drive the tensioning wheel to tension the chain.

4. The friction drive mechanism according to claim 3, characterized in that: A first connecting shaft is arranged between the first wheel frame and the tensioning frame; two ends of the first connecting shaft are respectively connected to the first wheel frame and the tensioning frame, so that the first wheel frame can slide relative to the first wheel frame along the axial direction of the first connecting shaft.

5. The friction drive mechanism according to claim 4, characterized in that: The tensioning frame includes a connecting plate and two wing plates; the two wing plates are spaced apart and arranged opposite to each other; the same side of the two wing plates is respectively connected to the connecting plate; the two ends of the rotating shaft of the tensioning wheel are respectively passed through the two wing plates; An abutting plate is formed at one end of the connecting plate, and one end of the first connecting shaft is passed through the abutting plate; the elastic member is clamped between the abutting plate and the first wheel frame.

6. The friction drive mechanism according to claim 5, characterized in that: The connecting plate is provided with a long hole; the length direction of the long hole is parallel to the sliding direction of the tensioning frame; the first wheel frame is provided with a second connecting shaft, and the second connecting shaft is passed through the long hole.

7. The friction drive mechanism according to claim 6, characterized in that: A protruding fastening portion is formed on a side of the second connecting shaft facing away from the first wheel frame; one side of the connecting plate is attached to the second wheel frame, and the other side of the connecting plate is attached to the fastening portion.

8. The friction drive mechanism according to claim 2, characterized in that: The wheel frame includes an extension plate and two fixed plates; the extension plate is fixed on the leaf spring, and the two fixed plates protrude from one side of the extension plate along the second direction; the two fixed plates are arranged at intervals from top to bottom; the rotating shaft passes through the two fixed plates from top to bottom; the rotating shaft can rotate around its own axis relative to the fixed plates; the friction wheel is arranged at the upper end of the rotating shaft and is located above the two fixed plates; the transmission gear is located between the two fixed plates.

9. The friction drive mechanism according to claim 8, characterized in that: The extension plate is attached to and fixed on the leaf spring on one side facing away from the fixed plate; the fixed plate extends along the second direction, and both ends of the fixed plate along the second direction respectively exceed the extension plate; the rotating shaft is arranged at both ends of the fixed plate along the second direction; and the transmission gear is located below the leaf spring.

10. The friction drive mechanism according to claim 8, characterized in that: The fixing plate below is attached to the upper surface of the bottom plate, or There is a 0-4 mm gap between the fixing plate below and the upper surface of the bottom plate.

11. The friction drive mechanism according to claim 8, characterized in that: The wheel frame is fixed on the corresponding leaf spring through a fixed shaft, and the extension plates of the two wheel frames are fixed on the opposite sides of the two leaf springs; the opposite ends of the fixed shafts on the two wheel frames are abutted.

12. The friction drive mechanism according to claim 11, characterized in that: The large end of the fixed shaft is located at the side of the leaf spring facing away from the wheel frame, and one or more detachable gaskets are arranged between the large end of the fixed shaft and the leaf spring.

13. The friction drive mechanism according to claim 1, characterized in that: The friction wheel is located above the wheel frame; a through hole is provided on the bottom plate and passes through the bottom plate; a protruding positioning column is formed at the bottom of the wheel frame; The positioning post is disposed in the via hole and is capable of moving in the via hole along a first direction; A protruding reinforcing plate is formed on the bottom surface of the bottom plate, and a fastening shaft is passed through between the reinforcing plate and the positioning column; the fastening shaft extends along the first direction.

14. The friction drive mechanism according to claim 1, characterized in that: A protruding fixing column and a protruding supporting plate are formed on the upper surface of the bottom plate; one end of the leaf spring is fixed on the fixing column, and the other end is passed through the supporting plate.

15. The friction drive mechanism according to claim 14, characterized in that: The support plate is provided with a through hole; one end of the leaf spring is inserted into the through hole; the through hole has a preset length along a first direction, and one end of the leaf spring inserted into the through hole can move a preset length in the through hole along the first direction.

16. The friction drive mechanism according to claim 14, characterized in that: A fixing piece is connected between the two leaf springs; the fixing piece is fixed to one end of the two leaf springs which passes through the support plate.

17. A three-dimensional garage access device, characterized in that: include: Fixed frame; A friction drive mechanism, which is the friction drive mechanism according to any one of claims 1 to 16; The bottom plate of the friction drive mechanism is fixed on the fixing frame; A vehicle-carrying plate is clamped between the friction wheels on the two wheel frames.

18. The three-dimensional garage access device according to claim 17, characterized in that: The bottom plate is provided with a plurality of fixing holes penetrating from top to bottom; the lower surface of the bottom plate is supported on the fixing frame; the fixing holes extend along a first direction; a fastener is provided between the fixing holes and the fixing frame, and the fastener is inserted into the fixing holes.

19. The three-dimensional garage access device according to claim 17, characterized in that: The bottom plate is also provided with a butt plate; compression springs are respectively provided on two opposite sides of the butt plate along the first direction; the compression springs extend along the first direction; and the two ends of the compression springs respectively abut against the butt plate and the fixing frame.

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