Vehicle

Abstract

The invention relates to the technical field of vehicles, in particular to a vehicle. The embodiment of the invention provides a vehicle which comprises a vehicle body, a lifting mechanism and a workbench, the lifting mechanism is movably arranged at the bottom of the vehicle body, and the lifting mechanism is provided with a first position hidden at the bottom of the vehicle body and a second position extending out of the bottom of the vehicle body; the workbench is connected with the lifting mechanism, and when the lifting mechanism is located at the second position, the workbench top is suitable for being driven by the lifting mechanism to ascend or descend. The technical problem of storage of the lifting mechanism and the workbench is solved, and the technical effects of saving space and being attractive are achieved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle. Background Art

[0002] At present, in order to meet the needs of people with limited mobility and heavy objects getting on and off the vehicle, some loading and unloading platforms or ramps are often used. However, the platforms and ramps can only be applied to specific environments and vehicles and cannot meet daily needs. Therefore, it is necessary to set a lifting mechanism on the vehicle. However, the lifting mechanism is mostly directly fixed on the vehicle, and the platform on the lifting mechanism requires other supports for loading and unloading. The lifting mechanism is inconvenient to use and occupies a large space. Summary of the invention

[0003] The present application provides a vehicle, which solves the technical problem of storing a lifting mechanism and a workbench, and achieves a technical effect of saving space and being beautiful.

[0004] In order to achieve the above objectives, the main technical solutions adopted in this application include:

[0005] An embodiment of the present application provides a vehicle, including a vehicle body, a lifting mechanism and a workbench, wherein the lifting mechanism is movably arranged at the bottom of the vehicle body, and the lifting mechanism has a first position hidden at the bottom of the vehicle body and a second position extending from the bottom of the vehicle body; the workbench is connected to the lifting mechanism, and when the lifting mechanism is in the second position, the workbench surface is suitable for rising or falling driven by the lifting mechanism.

[0006] The vehicle proposed in the embodiment of the present application has a lifting mechanism disposed at the bottom of the vehicle body and movable relative to the vehicle body, and a workbench connected to the lifting mechanism. When the lifting mechanism is in the first position, the workbench and the lifting mechanism are located at the bottom of the vehicle body, and the lifting mechanism and the workbench are in a storage state at this time; when the lifting mechanism is in the second position, the lifting mechanism drives the workbench to extend from the bottom of the vehicle body, and the lifting mechanism drives the workbench to rise or fall. When the lifting mechanism drives the workbench down to the ground, specific personnel or items can board the workbench; then the lifting mechanism drives the workbench up to the same level as the compartment of the vehicle body, and specific personnel or items can board the compartment. Then, the lifting mechanism drives the workbench down to the bottom of the vehicle body, and at this time the workbench and the lifting mechanism retract to the bottom of the vehicle body, and the lifting mechanism is in the first position.

[0007] Optionally, the vehicle also includes a guide mechanism, which includes: a first guide portion, the first guide portion is fixed to the vehicle body, the first guide portion extends along a first direction, and the first direction is perpendicular to the vertical direction; a second guide portion, the second guide portion is movably arranged on the first guide portion, and the second guide portion is fixedly connected to the lifting mechanism.

[0008] Optionally, there are two first guide parts, and they are spaced apart along the second direction, and the first direction and the second direction are perpendicular to the vertical direction in pairs; the second guide part includes a guide bracket and two groups of first guide wheel groups, the guide bracket is fixedly connected to the lifting mechanism, and the two groups of first guide wheel groups are respectively arranged at the two ends of the guide bracket in the second direction, and each group of the first guide wheel groups is respectively rollingly matched with the corresponding first guide part.

[0009] Optionally, the workbench includes a table top, a first support beam and a second support beam, the first support beam and the second support beam both extend along the first direction, and the first support beam and the second support beam are respectively fixed to the two ends of the table top in the second direction; the first guide portion defines a first storage space, and when the lifting mechanism is in the first position, the lifting mechanism, the first support beam and the second support beam are stored in the first storage space.

[0010] Optionally, the first support beam includes a first sub-support beam and a third sub-support beam, and the first sub-support beam and the third sub-support beam both extend along the first direction; the second support beam includes a second sub-support beam and a fourth sub-support beam, and the second sub-support beam and the fourth sub-support beam both extend along the first direction; adjacent first sub-support beams and third sub-support beams slide and nest in the first direction; adjacent second sub-support beams and fourth sub-support beams slide and nest in the first direction; the table top includes a first table top and a second table top, and along the second direction, the two ends of the first table top are respectively connected to the first sub-support beam and the second sub-support beam, and the two ends of the second table top are respectively connected to the third sub-support beam and the fourth sub-support beam.

[0011] Optionally, the workbench also includes a first driving member and a second driving member, the first driving member is fixed to the first sub-support beam and the driving end of the first driving member is connected to the third sub-support beam to drive the third sub-support beam to slide along the first direction; the second driving member is fixed to the second sub-support beam and the driving end of the second driving member is connected to the fourth sub-support beam to drive the fourth sub-support beam to slide along the first direction.

[0012] Optionally, the vehicle also includes a driving mechanism, which includes a driving motor and a driving rack, the driving motor is arranged on the guide bracket, and the driving shaft of the driving motor is provided with a driving gear; the driving rack is arranged at the bottom of the vehicle body and extends along the first direction, and the driving rack is meshed with the driving gear.

[0013] Optionally, the lifting mechanism is a four-bar linkage, which includes a first crank, a second crank and a first connecting rod, the length of the first crank is the same as the length of the second crank, one end of the first crank and one end of the second crank are rotatably arranged at the bottom of the vehicle body; the two ends of the first connecting rod are respectively hinged to the other end of the first crank and the other end of the second crank, and the length of the first connecting rod is the same as the distance between the one end of the first crank and the one end of the second crank.

[0014] Optionally, there are multiple four-bar linkages, and the multiple four-bar linkages are spaced apart along the second direction, and the first direction and the second direction are perpendicular to the vertical direction in pairs.

[0015] Optionally, the lifting mechanism further includes a third driving member and a rotating shaft, the third driving member is disposed on the guide bracket, the rotating shaft is rotatably disposed on the guide bracket, the driving end of the third driving member is fixedly connected to the rotating shaft, and the first crank is fixedly connected to the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of the structure of the vehicle of this application;

[0018] Figure 2 A bottom view of the vehicle in this application;

[0019] Figure 3 It is a partial structural schematic diagram of the vehicle of the present application, wherein the workbench and the lifting mechanism are in an extended state;

[0020] Figure 4 It is a partial structural schematic diagram of the vehicle of the present application, wherein the workbench and the lifting mechanism are in a raised state;

[0021] Figure 5 It is a partial structural schematic diagram of the vehicle of the present application, wherein the workbench and the lifting mechanism are in a lowered state;

[0022] Figure 6 A schematic diagram of the structure of the lifting mechanism and the second guide part of the vehicle of the present application;

[0023] Figure 7It is a partial structural schematic diagram of the vehicle of the present application, wherein the workbench and the lifting mechanism are in an extended state;

[0024] Figure 8 This is a schematic diagram of the partial structure of the vehicle of the present application, wherein the workbench and the lifting mechanism are in the storage state.

[0025] [Description of Reference Numerals]

[0026] 100: vehicle body; 1: lifting mechanism; 10: first four-bar linkage; 11: first crank; 12: second crank; 13: connecting rod; 14: third driving member; 15: rotating shaft; 16: first connecting block; 17: fourth driving member; 171: second connecting block; 18: second four-bar linkage; 181: third crank; 182: fourth crank; 183: second connecting rod; 2: workbench; 21: table; 211: first table; 212: second table; 213: third table; 22: first support beam; 221: first sub-support beam; 222: The third sub-support beam; 223: the fifth sub-support beam; 23: the second support beam; 231: the second sub-support beam; 232: the fourth sub-support beam; 233: the sixth sub-support beam; 25: the pedal; 26: the second driving member; 3: the guiding mechanism; 31: the first guiding part; 32: the second guiding part; 321: the guiding bracket; 322: the first guiding wheel group; 323: the second guiding wheel group; 4: the driving mechanism; 41: the driving motor; 42: the driving gear; 43: the driving rack; 5: the sealing plate; 6: the limiting member; A: the vertical direction; B: the first direction; C: the second direction. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0028] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0029] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0030] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0032] The term "multiple" as used in this application refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple sheets" refers to more than two sheets (including two sheets).

[0033] Since most traditional lifting mechanisms are directly fixed on the vehicle, they need to occupy the interior space of the vehicle and the setting effect is not aesthetically pleasing, in order to reduce the interior space occupied by the lifting mechanism and solve the storage problem of the lifting mechanism, it is necessary to design a vehicle that can reduce the space occupied by the lifting mechanism while completing the storage of the lifting mechanism and improving the aesthetics.

[0034] In view of this, reference Figures 1 to 8 An embodiment of the present application provides a vehicle, including a vehicle body 100, a lifting mechanism 1 and a workbench 2. The lifting mechanism 1 is movably arranged at the bottom of the vehicle body 100. The lifting mechanism 1 has a first position hidden at the bottom of the vehicle body 100 and a second position extending from the bottom of the vehicle body 100; the workbench 2 is connected to the lifting mechanism 1. When the lifting mechanism 1 is in the second position, the surface of the workbench 2 is suitable for rising or falling under the drive of the lifting mechanism 1.

[0035] In the vehicle proposed in the embodiment of the present application, the lifting mechanism 1 is arranged at the bottom of the vehicle body 100 and can move relative to the vehicle body 100. The workbench 2 is connected to the lifting mechanism 1. When the lifting mechanism 1 is in the first position, the workbench 2 and the lifting mechanism 1 are hidden at the bottom of the vehicle body 100. At this time, the lifting mechanism 1 and the workbench 2 are in a storage state; when the lifting mechanism 1 is in the second position, the lifting mechanism 1 drives the workbench 2 to extend from the bottom of the vehicle body 100, and the lifting mechanism 1 drives the workbench 2 to rise or fall. When the lifting mechanism 1 drives the workbench 2 to descend to the ground, a specific person or item can board the workbench 2; then the lifting mechanism 1 drives the workbench 2 to rise to the same level as the compartment of the vehicle body 100, and a specific person or item can board the compartment. Then, the lifting mechanism 1 drives the workbench 2 to descend to the bottom of the vehicle body 100. At this time, the workbench 2 and the lifting mechanism 1 retract to the bottom of the vehicle body 100. The lifting mechanism 1 is in the first position, which reduces the space occupied by the lifting mechanism 1 and the workbench 2 and improves the aesthetics.

[0036] Optionally, the vehicle further includes a guide mechanism 3, which includes: a first guide portion 31, which is fixed to the vehicle body 100 and extends along a first direction B, which is perpendicular to the vertical direction A; and a second guide portion 32, which is movably disposed on the first guide portion 31 and is fixedly connected to the lifting mechanism 1. Specifically, the first guide portion 31 is fixed to the bottom of the vehicle body 100 and extends along the first direction B, the second guide portion 32 is fixedly connected to the lifting mechanism 1, and the second guide portion 32 is movably disposed on the first guide portion 31. When the lifting mechanism 1 needs to be stored, the second guide portion 32 slides along the first guide portion 31 in a direction of being retracted under the vehicle body 100, thereby realizing the storage of the lifting mechanism 1; when the lifting mechanism 1 needs to work, the second guide portion 32 slides along the first guide portion 31 in a direction of extending out from under the vehicle body 100.

[0037] It is understandable that the first guide portion 31 and the second guide portion 32 may extend in the horizontal direction, for example, the first guide portion 31 and the second guide portion 32 may extend in the front-to-back direction. Thus, it is ensured that when the workbench 2 moves back and forth between the first position and the second position, only displacement in the front-to-back direction occurs, and no displacement in the up-down direction occurs. Thus, when the workbench 2 moves back and forth between the first position and the second position, the space occupied in the up-down direction of the bottom of the vehicle is reduced.

[0038] Optionally, there are two first guide portions 31, which are spaced apart along the second direction C, and the first direction B and the second direction C are perpendicular to the vertical direction A; the second guide portion 32 includes a guide bracket 321 and two groups of first guide wheel groups 322, the guide bracket 321 is fixedly connected to the lifting mechanism 1, and the two groups of first guide wheel groups 322 are respectively arranged at both ends of the guide bracket 321 in the second direction C, and each group of first guide wheel groups 322 is respectively rollingly matched with the corresponding first guide portion 31.

[0039] Specifically, a box body is connected below the vehicle body 100, and the box body includes a first part and a second part extending along a first direction B, and a third part and a fourth part extending along a second direction C, wherein the first part is configured as a first frame having an opening on one side, and the second part is configured as a second frame having an opening on one side, the opening of the first frame faces the second frame, and the opening of the second frame faces the first frame, and the first frame and the second frame together configure a first guide portion 31. The second guide portion 32 includes a guide bracket 321, two groups of first guide wheel groups 322, and two groups of second guide wheel groups 323, the two first guide wheel groups 322 are respectively located in the first frame and the second frame, and the two second guide wheel groups 323 are respectively located in the first frame and the second frame.

[0040] Taking the first guide wheel group 322 and the second guide wheel group 323 located in the first frame as an example, there are three first guide wheel groups 322, which are spaced apart along the first direction B. Each first guide wheel group 322 includes a first connecting member extending along the vertical direction A. A guide wheel is provided at each end of the first connecting member. The two guide wheels abut against two opposite side walls of the first frame along the vertical direction A respectively along the vertical direction A. The axes of the two guide wheels extend along the second direction C. That is to say, the first guide wheel group 322 is used to fix the position of the lifting mechanism 1 in the vertical direction A and maintain a certain clearance accuracy with the two opposite side walls of the first frame in the vertical direction A, so that the lifting mechanism 1 can move in the first frame along the first direction B. There are two second guide wheel groups 323, which are spaced apart along the first direction B. The second guide wheel group 323 includes a second connecting member extending along the second direction C. A guide wheel is provided at the end of the second connecting member. The guide wheels of the second guide wheel group 323 abut against the side surface of the first frame opposite to the second direction C. The axes of the guide wheels of the second guide wheel group 323 extend along the vertical direction.

[0041] The cross-section of the first frame and the cross-section of the second frame may both be U-shaped with an opening, and the opening of the first frame and the opening of the second frame face each other.

[0042] The second guide wheel group 323 in the first frame and the second frame is used to fix the position of the lifting mechanism 1 in the second direction C, and to ensure a certain clearance accuracy between the lifting mechanism 1 and the first frame and the second frame, so that the lifting mechanism 1 can move in the first frame and the second frame along the first direction B. The first guide wheel group 322 in the first frame and the second frame is used to fix the position of the lifting mechanism 1 in the vertical direction A, and to maintain a certain clearance accuracy between the lifting mechanism 1 and the first frame and the second frame, so that the lifting mechanism 1 can move in the first frame and the second frame along the first direction B.

[0043] The first guide part 31 of the box body of the present application is mainly made of cold-rolled channel steel and square steel through machining or welding. The connecting parts of the vehicle body 100 connected to the box body are mainly made of stamped cold-rolled steel and square steel.

[0044] It can be understood that, since both the first frame and the second frame are constructed as U-shaped structures, when the lifting mechanism 1 is in the first position, the space within the first frame and the second frame can accommodate at least a portion of the lifting mechanism 1.

[0045] Optionally, refer to Figure 7 The vehicle further includes a driving mechanism 4, which includes a driving motor 41 and a driving rack 43. The driving motor 41 is disposed on the guide bracket 321, and the driving shaft of the driving motor 41 is provided with a driving gear 42; the driving rack 43 is disposed at the bottom of the vehicle body 100 and extends along the first direction B, and the driving rack 43 is meshed with the driving gear 42. The two ends of the driving rack 43 are respectively fixed to the third and fourth parts of the box body. The driving motor 41 drives the driving shaft to drive the driving gear 42 to rotate, and the driving gear 42 is meshed with the driving rack 43, so that the driving motor 41 drives the lifting mechanism 1 to automatically move along the first frame and the second frame.

[0046] In a specific embodiment, a driving gear 42 is connected to each end of the driving shaft of the driving motor 41, and two driving racks 43 spaced apart along the second direction C are provided between the third part and the fourth part. The driving rack 43 cooperates with the driving gear 42 to improve the sliding stability of the lifting mechanism 1 when it is automatically extended or retracted.

[0047] In addition, the objects placed on the workbench 2 of the present application are heavy, and when the lifting mechanism 1 is driven to move by the screw nut, the workbench 2 will shake severely, affecting the stability of the movement of the lifting mechanism 1. Therefore, in the present application, the driving rack 43 and the driving gear 42 are used to drive the lifting mechanism 1 to move, so that the workbench 2 is very stable during the movement, ensuring the stability of the movement of the lifting mechanism 1.

[0048] It should be understood that a sealing plate 5 is provided between the first and second parts of the box body, and the sealing plate 5 is provided on one side of the first and second parts close to the third part. A limiting member 6 is provided on the sealing plate 5. When the lifting mechanism 1 extends from the first guide part 31 to the guide bracket 321 and abuts against the limiting member 6, the lifting mechanism 1 stops extending outward.

[0049] Optionally, the workbench 2 includes a table top 21, a first support beam 22 and a second support beam 23, the first support beam 22 and the second support beam 23 both extend along the first direction B, and the first support beam 22 and the second support beam 23 are respectively fixed to the two ends of the table top 21 in the second direction C; the first guide portion 31 defines a first storage space, and when the lifting mechanism 1 is in the first position, the lifting mechanism 1, the first support beam 22 and the second support beam 23 are stored in the first storage space.

[0050] It should be understood that the first frame and the second frame are constructed as the first guide portion 31, and the two first guide portions 31 arranged opposite to each other along the second direction C define the first storage space, that is, the first frame and the second frame define the first storage space. When no specific person or item needs to enter the carriage, the lifting mechanism 1 and the first support beam 22 and the second support beam 23 move along the first guide portion 31 until they completely enter the first storage space, that is, the lifting mechanism 1 and the workbench 2 are in a storage state. When specific people or items need to enter the carriage, the driving motor 41 drives the driving gear 42 to rotate, and the driving gear 42 moves along the driving rack 43 until the first support beam 22 and the second support beam 23 completely extend out of the first guide portion 31, and the lifting mechanism 1 drives the workbench 2 to rise or fall so that the specific person or item needs to enter the carriage.

[0051] Optionally, refer to Figure 3 and Figure 4 The first support beam 22 includes a first sub-support beam 221 and a third sub-support beam 222, and the first sub-support beam 221 and the third sub-support beam 222 both extend along the first direction B; the second support beam 23 includes a second sub-support beam 231 and a fourth sub-support beam 232, and the second sub-support beam 231 and the fourth sub-support beam 232 both extend along the first direction B; the adjacent first sub-support beam 221 and the third sub-support beam 222 slide and nest in the first direction B; the adjacent second sub-support beam 231 and the fourth sub-support beam 232 slide and nest in the first direction B; the table 21 includes a first table 211 and a second table 212, and along the second direction C, the two ends of the first table 211 are respectively connected to the first sub-support beam 221 and the second sub-support beam 231, and the two ends of the second table 212 are respectively connected to the third sub-support beam 222 and the fourth sub-support beam 232.

[0052] Specifically, the first support beam 22 further includes a fifth sub-support beam 223, which extends along the first direction B, slides along the first direction B and is nested with the third sub-support beam 222; the second support beam 23 further includes a sixth sub-support beam 233, which extends along the first direction B, slides along the first direction B and is nested with the fourth sub-support beam 232. The table 21 further includes a third table 213, which is disposed between the fifth sub-support beam 223 and the sixth sub-support beam 233.

[0053] Optionally, the workbench 2 also includes a first driving member (not shown) and a second driving member 26, the first driving member is fixed to the first sub-support beam 221 and the driving end of the first driving member is connected to the third sub-support beam 222 to drive the third sub-support beam 222 to slide along the first direction B; the second driving member 26 is fixed to the second sub-support beam 231 and the driving end of the second driving member 26 is connected to the fourth sub-support beam 232 to drive the fourth sub-support beam 232 to slide along the first direction B.

[0054] In a specific embodiment, the first driving member is a first electric push rod, and the second driving member 26 is a second electric push rod. The first electric push rod is fixed to the first sub-support beam 221, and the driving rod of the first electric push rod is fixed to the third sub-support beam 222; the second electric push rod is fixed to the second sub-support beam 231, and the driving rod of the second electric push rod is fixed to the fourth sub-support beam 232. When the lifting mechanism 1 is moved out from the first guide portion 31, the first electric push rod drives the third sub-support beam 222 to extend along the first direction B, and the second electric push rod drives the fourth sub-support beam 232 to extend along the first direction B, so that the second table 212 is extended from the first table 211; when the lifting mechanism 1 is retracted inward from the first guide portion 31, the first electric push rod pulls the third sub-support beam 222 to retract along the first direction B, and the second electric push rod pulls the fourth sub-support beam 232 to retract along the first direction B, so that the second table 212 is stored in the first table 211.

[0055] In another specific embodiment, the workbench 2 also includes a first screw motor and a second screw motor, the first screw motor is fixed on the first sub-support beam 221 and the screw of the first screw motor is connected to the third sub-support beam 222, and the first screw motor drives the third sub-support beam 222 to move along the screw of the first screw motor; the second screw motor is fixed on the second sub-support beam 231 and the screw of the second screw motor is connected to the fourth sub-support beam 232, and the second screw motor drives the fourth sub-support beam 232 to move along the screw of the second screw motor. Specifically, when the lifting mechanism 1 is moved out from the first guide portion 31, the first screw motor drives the third sub-support beam 222 to extend along the first direction B, and the second screw motor drives the fourth sub-support beam 232 to extend along the first direction B, thereby realizing that the second table 212 extends from the first table 211; when the lifting mechanism 1 is retracted inward from the first guide portion 31, the first electric push rod pulls the third sub-support beam 222 to retract along the first direction B, and the second electric push rod pulls the fourth sub-support beam 232 to retract along the first direction B, thereby causing the second table 212 to be stored in the first table 211, thereby realizing the automatic extension and retraction of the second table 212.

[0056] It should be understood that the fifth sub-support beam 223 and the sixth sub-support beam 233 can be opened automatically by an electric push rod or a screw motor, or can be opened manually, and the present application is not limited thereto.

[0057] refer to Figure 3 and Figure 5 The workbench 2 includes a first table top 211 connected to a four-bar linkage, a second table top 212 connected to an electric push rod or a screw motor, and a third table top 213. The first table top 211, the second table top 212 and the third table top 213 form a drawer-type mechanism that can realize automatic storage, thereby solving the problem of manually reversing the table top 21 in the prior art.

[0058] In a specific embodiment, the first sub-support beam 221 and the second sub-support beam 231 are constructed as a frame with an opening on one side, and the frame of the first sub-support beam 221 and the second sub-support beam 231 is configured with a second accommodating space, and the first electric push rod, the second electric push rod and the third sub-support beam 222 and the fourth sub-support beam 232 are accommodated in the second accommodating space. When the workbench 2 is in the storage state, the first sub-support beam 221, the second sub-support beam 231, the third sub-support beam 222 and the fourth sub-support beam 232, the fifth sub-support beam 223 and the sixth sub-support beam 233 and the first table 211, the second table 212 and the third table 213 are all stored in the second accommodating space.

[0059] The material of the workbench 2 can be high-strength steel or aluminum alloy, and is completed by processes such as laser cutting, stamping, and welding.

[0060] Optionally, refer to Figures 3 to 6 The lifting mechanism 1 is a four-bar linkage, which includes a first crank 11, a second crank 12 and a first connecting rod 13. The length of the first crank 11 is the same as that of the second crank 12. One end of the first crank 11 and one end of the second crank 12 can be rotatably arranged at the bottom of the vehicle body 100. The two ends of the first connecting rod 13 are respectively hinged to the other end of the first crank 11 and the other end of the second crank 12. The length of the first connecting rod 13 is the same as the distance between one end of the first crank 11 and one end of the second crank 12. Specifically, one end of the first crank 11 and one end of the second crank 12 are rotatably arranged on the guide bracket 321, and the first crank 11, the second crank 12, the first connecting rod 13 and the guide bracket 321 constitute a four-bar linkage. Among them, the guide bracket 321 can be used as one of the first connecting rods 13 of the four-bar linkage and is fixedly arranged. The workbench 2 is connected to the first connecting rod 13. When the first crank 11 and the second crank 12 rotate downward, the workbench 2 is driven down, so that a specific person or object can be put on the workbench 2; when the first crank 11 and the second crank 12 rotate upward, the workbench 2 is driven up, so that a specific person or object can be put into the carriage. A connecting arm is fixed on the first connecting rod 13, and the workbench 2 is fixed on the connecting arm, so that the workbench 2 can always remain horizontal, so that the specific person or object on the workbench 2 will not slide off during the lifting and lowering process of the workbench 2.

[0061] Optionally, there are multiple four-bar linkages, and the multiple four-bar linkages are arranged at intervals along the second direction C, and the first direction B and the second direction C are perpendicular to the vertical direction A. In a specific embodiment, there are two four-bar linkages, namely a first four-bar linkage 10 and a second four-bar linkage 18. The first four-bar linkage 10 and the second four-bar linkage 18 are arranged on both sides of the workbench 2 and are respectively connected to the first sub-support beam 221 and the second sub-support beam 231. The first four-bar linkage includes a first crank 11, a second crank 12 and a first connecting rod; the second four-bar linkage 18 includes a third crank 181, a fourth crank 182 and a second connecting rod 183.

[0062] Among them, the four-bar linkage material is mainly 45# steel, which is made through machining, CNC machining and welding.

[0063] In the present application, the first crank 11 has a first pivot center that is rotatably matched with the vehicle body 100, and the second crank 11 has a second pivot center that is rotatably matched with the vehicle body 100. The line connecting the first pivot center and the second pivot center is parallel to the vertical direction. Therefore, when the lifting mechanism 1 does not place any objects and the workbench is not in an intermediate state of lifting or lowering, the first crank 11 and the second crank 12 will not be in a locked state, ensuring that the driving member for driving the first crank 11 or the second crank 12 can smoothly drive the first crank 11 or the second crank 12 without getting stuck.

[0064] If the line connecting the first pivot center and the second pivot center is perpendicular to the vertical direction, and thus when no object is placed on the lifting mechanism 1 and the workbench is not in an intermediate state of lifting or lowering, the extension direction of the first crank 11 and the second crank 12 is parallel to the line connecting the first pivot center and the second pivot center, thereby causing the first crank 11 and the second crank 12 to be in a locked state, and the driving member for driving the first crank 11 or the second crank 12 cannot drive the first crank 11 or the second crank 12 smoothly, and may even become stuck.

[0065] Optionally, the lifting mechanism 1 also includes a third driving member 14 and a rotating shaft 15, the third driving member 14 is arranged on the guide bracket 321, the rotating shaft 15 is rotatably arranged on the guide bracket 321, the driving end of the third driving member 14 is fixedly connected to the rotating shaft 15, and the first crank 11 is fixedly connected to the rotating shaft 15.

[0066] Specifically, the lifting mechanism 1 includes a third driving member 14 and a fourth driving member 17. The third driving member 14 is arranged on the guide bracket 321. The driving end of the third driving member 14 is fixedly connected to the rotating shaft 15 through the first connecting block 16, and the first crank 11 is fixedly connected to the rotating shaft 15. The fourth driving member 17 is arranged on the guide bracket 321. The driving end of the fourth driving member 17 is fixedly connected to the rotating shaft 15 through the second connecting block 171, and the third crank is fixedly connected to the rotating shaft 15. Specifically, the third driving member 14 and the fourth driving member 17 can be hydraulic rods or electric push rods. For example, the third driving member 14 and the fourth driving member 17 are respectively the first hydraulic rod and the second hydraulic rod. The first hydraulic rod and the second hydraulic rod are arranged on the guide bracket 321, and the rotating shaft 15 is rotatably arranged on the guide bracket 321. The first hydraulic rod is fixedly connected to the rotating shaft 15 through the first connecting block 16, the second hydraulic rod is fixedly connected to the rotating shaft 15 through the second connecting block 171, and the first crank 11 and the third crank 17 are fixedly connected to the rotating shaft 15. Specifically, the guide bracket 321 is provided with a first hydraulic rod, a second hydraulic rod and a rotating shaft 15, and the first hydraulic rod is fixedly connected to the rotating shaft 15 through a first connecting block 16. One end of the first crank 11 is fixedly connected to the first rotating shaft 15, one end of the second crank 12 is rotatably connected to the guide bracket 321, and the other ends of the first crank 11 and the second crank 12 are connected to the first connecting rod 13. The second hydraulic rod is fixedly connected to the second rotating shaft 15 through a second connecting block 171, one end of the third crank 181 is fixedly connected to the rotating shaft 15, one end of the fourth crank 182 is connected to the guide bracket 321, and the other ends of the third crank 181 and the fourth crank 182 are connected to the second connecting rod 183. It should be understood that the four-bar linkage can also be driven to rotate by an industrial push rod. As long as the four-bar linkage can be driven to rotate, objects or specific personnel can be automatically lifted to the carriage to solve the ergonomic problem, and the specific implementation method is not limited in this application.

[0067] The first hydraulic rod and the second hydraulic rod drive the rotating shaft 15 to rotate forward or reversely through the first connecting block 16 and the second connecting block 171 respectively, and the rotating shaft 15 drives the first crank 11 and the third crank 181 to rotate upward or rotate downward at the same time. When the first crank 11 and the third crank 181 rotate upward at the same time, the first crank 11 drives the second crank 12 to rotate, and the third crank 181 drives the fourth crank 182 to rotate, thereby lifting the workbench 2; when the first crank 11 and the third crank 181 rotate downward at the same time, the first crank 11 drives the second crank 12 to rotate, and the third crank 181 drives the fourth crank 182 to rotate, thereby lowering the workbench 2.

[0068] The four-link mechanism in this application can realize automatic loading and unloading of items, and can meet the needs of items within 150 kg or specific personnel from zero height on the ground to the inside of the carriage. The automatic lifting height is 0-650mm, which can realize the automatic transportation of items or transportation tools to the carriage. The box-type first guide part 31 can automatically store the entire lifting mechanism 1 and the workbench 2. After use, the lifting mechanism 1 and the workbench 2 will be automatically stored under the vehicle to ensure the integrity and beauty of the vehicle space.

[0069] In a specific embodiment, a pedal 25 is provided at one end of the first table surface 211 of the workbench 2 facing the guide bracket 321, and the pedal 25 is hinged to the first table surface 211 through a hydraulic hinge. When the lifting mechanism 1 and the workbench 2 are retracted, the guiding pressure of the driving rack 43 in the box presses the pedal 25 onto the surface of the workbench 2 and is substantially flush with the surface of the workbench 2; when the lifting mechanism 1 and the workbench 2 are gradually extended, the pedal 25 will slowly rise from the workbench 2 under the action of the hydraulic reverse force of the hydraulic hinge; when the lifting mechanism 1 and the workbench 2 are raised to be flush with the carriage, the pedal 25 will reach an open state under the action of the reverse force of the hydraulic hinge and be flush with the carriage.

[0070] In the present application, the vehicle also includes a PLC electronic control system, which is mainly composed of a control chip, a driver, a screw motor or an electric push rod, a wireless remote control module, etc., to realize the automatic extension or retraction of the four-bar linkage and the drawer-type workbench 2, as well as the descent and ascent of the four-bar linkage and the drawer-type workbench 2 surfaces.

[0071] A box is provided at the bottom of the vehicle body 100, and the box includes a first frame and a second frame arranged opposite to each other. The first frame and the second frame are configured to form a first guide portion 31, and a guide bracket 321 is slidably connected to the first guide portion 31. The lifting mechanism 1 is connected to the guide bracket 321, wherein the lifting mechanism 1 is a four-bar linkage, and the workbench 2 is connected to the four-bar linkage. A driving mechanism 4 is provided on the guide bracket 321 to drive the lifting mechanism 1 and the workbench 2 to extend outward. The box can accommodate the entire lifting mechanism 1 and the workbench 2. When the lifting mechanism 1 and the workbench 2 are not in use and are in a storage state, refer to Figure 8 , the lifting mechanism 1 and the workbench 2 are retracted into the box and are located at the bottom of the vehicle body 100, which reduces the space occupied by the lifting mechanism 1 and the workbench 2 and improves the aesthetics. When the lifting mechanism 1 and the workbench 2 need to be used, the extension key is pressed, the driving mechanism 4 drives the gear 42 to move along the driving rack 43, and the guide wheels of the first guide wheel group 322 and the second guide wheel group 323 move outward along the first guide portion 31, and at the same time, the second table 212 and the third table 213 are also automatically extended synchronously, so as to realize the automatic extension of the lifting mechanism 1 and the workbench 2; when the lifting mechanism 1 and the workbench 2 need to be retracted into the box, the driving mechanism 4 drives the gear 42 to move along the driving rack 43, and the guide wheels of the first guide wheel group 322 and the second guide wheel group 323 move into the box along the first guide portion 31, so as to realize the automatic retraction of the lifting mechanism 1 and the workbench 2.

[0072] When the lifting mechanism 1 and the workbench 2 need to extend out of the box and carry specific people or items, press the descending signal key, the hydraulic rod drives the shaft 15 to rotate, the shaft 15 drives the four-bar mechanism to rotate downward, and the workbench 2 moves downward to the ground along with the lifting mechanism 1. Figure 5 At the same time, the electric push rod drives the third sub-support beam 222 and the fourth sub-support beam 232 of the workbench 2 to extend. After a specific person or item is on the workbench 2, the up button is pressed, and the hydraulic rod drives the shaft 15 to rotate in the opposite direction, and the shaft 15 drives the four-bar mechanism to rotate upward, and the workbench 2 moves upward to the carriage along with the lifting mechanism 1. Figure 4 , the pedal will be opened and flush with the car body under the reverse force of the hinge, so that specific people and items can enter the car body. Then, the hydraulic rod drives the shaft 15 to rotate, and the shaft 15 drives the four-bar linkage to rotate downward, and the workbench 2 moves downward to the bottom of the car body 100 along with the lifting mechanism 1. Figures 1 to 3 The driving mechanism 4 drives the four-bar linkage to recover, and the hydraulic rod drives the third sub-support beam 222 and the fourth sub-support beam 232 to recover into the box body, thereby realizing the automatic storage of the lifting mechanism 1 and the workbench 2, and the structure is simple and the manufacturing cost is low.

[0073] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0074] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0075] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

[0076] Although the embodiments of the present application have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A vehicle, characterized in that: include: Car body; A lifting mechanism is movably disposed at the bottom of the vehicle body, wherein the lifting mechanism has a first position hidden at the bottom of the vehicle body and a second position extending from the bottom of the vehicle body; The workbench is connected to the lifting mechanism. When the lifting mechanism is in the second position, the workbench surface is suitable for rising or falling under the drive of the lifting mechanism.

2. The vehicle according to claim 1, characterized in that The vehicle further comprises a guide mechanism, wherein the guide mechanism comprises: A first guide portion, the first guide portion is fixed to the vehicle body, the first guide portion extends along a first direction, and the first direction is perpendicular to the vertical direction; A second guide portion, wherein the second guide portion is movably disposed on the first guide portion, and the second guide portion is fixedly connected to the lifting mechanism.

3. The vehicle according to claim 2, characterized in that There are two first guide portions, which are spaced apart along the second direction, and the first direction and the second direction are perpendicular to the vertical direction in pairs; The second guide portion includes a guide bracket and two groups of first guide wheel groups. The guide bracket is fixedly connected to the lifting mechanism. The two groups of first guide wheel groups are respectively arranged at both ends of the guide bracket in the second direction. Each group of the first guide wheel groups is respectively in rolling cooperation with the corresponding first guide portion.

4. The vehicle according to claim 3, characterized in that The workbench comprises a table top, a first support beam and a second support beam, the first support beam and the second support beam both extend along the first direction, and the first support beam and the second support beam are respectively fixed to two ends of the table top in the second direction; The first guide portion defines a first receiving space, and when the lifting mechanism is in the first position, the lifting mechanism, the first support beam, and the second support beam are received in the first receiving space.

5. The vehicle according to claim 4, characterized in that The first support beam includes a first sub-support beam and a third sub-support beam, and the first sub-support beam and the third sub-support beam both extend along the first direction The second support beam comprises a second sub-support beam and a fourth sub-support beam, and the second sub-support beam and the fourth sub-support beam both extend along the first direction; The adjacent first sub-support beam and the adjacent third sub-support beam slide in the first direction and are nested together; the adjacent second sub-support beam and the adjacent fourth sub-support beam slide in the first direction and are nested together; The table top includes a first table top and a second table top. Along the second direction, two ends of the first table top are respectively connected to the first sub-support beam and the second sub-support beam, and two ends of the second table top are respectively connected to the third sub-support beam and the fourth sub-support beam.

6. The vehicle according to claim 5, characterized in that The workbench also includes a first driving member and a second driving member, the first driving member is fixed to the first sub-support beam and the driving end of the first driving member is connected to the third sub-support beam to drive the third sub-support beam to slide along the first direction; the second driving member is fixed to the second sub-support beam and the driving end of the second driving member is connected to the fourth sub-support beam to drive the fourth sub-support beam to slide along the first direction.

7. The vehicle according to claim 3, characterized in that The vehicle further comprises a driving mechanism, wherein the driving mechanism comprises: A driving motor, wherein the driving motor is arranged on the guide bracket, and a driving shaft of the driving motor is provided with a driving gear; A driving rack is disposed at the bottom of the vehicle body and extends along the first direction, and the driving rack is meshed with the driving gear.

8. The vehicle according to claim 3, characterized in that The lifting mechanism is a four-bar linkage, and the four-bar linkage comprises: a first crank and a second crank, wherein the length of the first crank is the same as the length of the second crank, and one end of the first crank and one end of the second crank are both rotatably disposed on the bottom of the vehicle body; A first connecting rod, two ends of which are respectively hinged to the other end of the first crank and the other end of the second crank, and a length of the first connecting rod is the same as a distance between the one end of the first crank and the one end of the second crank.

9. The vehicle according to claim 8, characterized in that There are multiple four-bar linkages, and the multiple four-bar linkages are arranged at intervals along the second direction. The first direction and the second direction are perpendicular to the vertical direction in pairs.

10. The vehicle according to claim 8, characterized in that The lifting mechanism also includes a third driving member and a rotating shaft. The third driving member is arranged on the guide bracket. The rotating shaft is rotatably arranged on the guide bracket. The driving end of the third driving member is fixedly connected to the rotating shaft, and the first crank is fixedly connected to the rotating shaft.

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