Variable-wheelbase chassis of passenger car

Abstract

The utility model discloses a variable wheelbase chassis of a passenger car, which relates to the technical field of passenger car chassis, and comprises an outer adjusting mechanism, an inner adjusting mechanism, an inner adjusting mechanism and a front chassis, the inner adjusting mechanism is used for installing the bidirectional inner locking mechanism and connecting the bidirectional inner locking mechanism with the rear chassis; the bidirectional inner locking mechanism comprises a fixing plate, a driving motor, a fusiform block and two locking assemblies, and any locking assembly comprises a connecting rod, a moving rod, an end plate and two locking pins; the fixing plate is fixedly arranged on the inner side of the inner U-shaped plate, the driving motor is fixedly arranged at the bottom of the fixing plate, and the fusiform block is located on the top of the fixing plate and is in transmission connection with the driving motor. Locking operation or unlocking operation on the two sides of the outer adjusting mechanism and the two sides of the inner adjusting mechanism can be synchronously completed, labor is effectively saved while the operation difficulty is lowered, and more convenience is achieved during actual use.

Description

Technical Field

[0001] The utility model relates to the technical field of bus chassis, in particular to a bus chassis with a variable wheelbase. Background Art

[0002] The wheelbase of ordinary small cars is about 4 meters, which causes low road utilization when driving alone, resulting in road congestion, difficulty in turning and parking when encountering narrow bends. Therefore, cars with variable wheelbases have emerged, which can change the length of the car body to adapt to driving needs in different situations. Therefore, cars with variable wheelbases are a direction for future automobile development.

[0003] The utility model patent with patent authorization announcement number CN 211765865 U discloses a variable wheelbase electric drive chassis, including two parallel bottom plates, a fixed plate is arranged at the top position between the two bottom plates, a rear-wheel drive mechanism is arranged at one end of the bottom plate, a front-wheel drive mechanism is arranged at the other end of the bottom plate, a wheelbase adjustment mechanism is arranged between the bottom plate and the front-wheel drive mechanism, the rear-wheel drive mechanism includes a connecting shaft, drive motors are arranged at both ends of the connecting shaft, a wheel protection groove is arranged on the side of the drive motor away from the connecting shaft, and a wheel is arranged inside the wheel protection groove.

[0004] However, the above device still has some shortcomings in actual use. The most obvious one is that when adjusting the wheelbase, the operator needs to first remove multiple fastening bolts from both sides of the vehicle. After the adjustment is completed, it is necessary to install multiple fastening bolts from both sides of the vehicle. The actual operation is too cumbersome and labor-intensive, and is not convenient to use.

[0005] Therefore, it is necessary to invent a variable wheelbase chassis for a passenger car to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a variable wheelbase chassis for passenger cars, which is provided with a two-way inner locking mechanism, so that when it is necessary to release the lock of the outer U-shaped plate and the inner U-shaped plate, the driving motor drives the shuttle block to rotate, and the shuttle block synchronously pulls the two connecting rods when rotating, and the connecting rod drives the end plate to move through the moving rod when being pulled, and the end plate drives the locking pin to move out from the inner side of the locking hole when moving, thereby releasing the lock, and when it is necessary to lock it again subsequently, the driving motor drives the shuttle block to rotate in the opposite direction, and then synchronously pushes the two end plates so that the four locking pins respectively enter the adjacent locking holes to complete the locking, so as to solve the problem proposed in the above background technology that when adjusting the wheelbase, the operator needs to first complete the disassembly of multiple fastening bolts from both sides of the vehicle, and after the adjustment is completed, it is necessary to install multiple fastening bolts from both sides of the vehicle, and the actual operation is too cumbersome and too labor-intensive, and the use is not convenient enough.

[0007] According to one aspect of the present disclosure, the following technical solution is provided: a variable wheelbase chassis for a passenger car, comprising:

[0008] An external adjustment mechanism, the external adjustment mechanism is used to install the internal adjustment mechanism and connect the front chassis;

[0009] An inner adjustment mechanism, the inner adjustment mechanism is used to install the two-way inner locking mechanism and connect the rear chassis;

[0010] A two-way internal locking mechanism, the two-way internal locking mechanism comprising a fixed plate, a drive motor, a shuttle block and two sets of locking components, each set of locking components comprising a connecting rod, a moving rod, an end plate and two locking pins;

[0011] The fixing plate is fixedly arranged on the inner side of the inner U-shaped plate, the driving motor is fixedly arranged on the bottom of the fixing plate, the shuttle block is located on the top of the fixing plate and is drivingly connected to the driving motor, the connecting rod is rotatably connected to one end of the top of the shuttle block through a pin shaft, the moving rod is rotatably connected to the connecting rod through a pin shaft, the end plate is fixedly arranged on the end of the moving rod, the two locking pins are respectively fixedly arranged on both ends of the outer side of the end plate, and the two locking pins both slide through the inner U-shaped plate and extend to the inner side of the adjacent locking holes;

[0012] front chassis; and

[0013] Rear chassis.

[0014] According to the variable wheelbase chassis for passenger vehicles of at least one embodiment of the present disclosure, the outer adjustment mechanism includes an outer U-shaped plate and a plurality of locking holes.

[0015] According to the variable wheelbase chassis for buses of at least one embodiment of the present disclosure, the outer U-shaped plate is fixedly connected to the front chassis, and a plurality of locking holes are evenly arranged on both sides of the outer U-shaped plate.

[0016] According to the variable wheelbase chassis of a passenger car of at least one embodiment of the present disclosure, the inner adjustment mechanism includes an inner U-shaped plate and two hydraulic cylinders.

[0017] According to the variable wheelbase chassis of a passenger car of at least one embodiment of the present disclosure, the inner U-shaped plate is slidably arranged on the inner side of the outer U-shaped plate, the two hydraulic cylinders are respectively fixedly arranged on the inner top and inner bottom of the inner U-shaped plate, and the output shafts of the two hydraulic cylinders are fixedly connected to the outer U-shaped plate.

[0018] Technical effects and advantages of the utility model:

[0019] The utility model is provided with a two-way inner locking mechanism, so that when it is necessary to release the lock of the outer U-shaped plate and the inner U-shaped plate, the driving motor drives the shuttle block to rotate, and the shuttle block synchronously pulls the two connecting rods when rotating. When the connecting rod is pulled, the end plate is driven to move through the moving rod, and when the end plate moves, the locking pin is driven to move out from the inside of the locking hole, thereby releasing the lock. When it is needed to lock again subsequently, the driving motor drives the shuttle block to rotate in the opposite direction, and then synchronously pushes the two end plates, so that the four locking pins respectively enter the adjacent locking holes to complete the locking. Compared with the same type of device in the prior art, the utility model can synchronously complete the locking operation or unlocking operation on both sides of the outer adjustment mechanism and the inner adjustment mechanism, which reduces the difficulty of operation and effectively saves manpower, and is more convenient in actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0021] Figure 1 It is a schematic diagram of the overall structure of a variable wheelbase chassis for a passenger car according to an embodiment of the present disclosure.

[0022] Figure 2 It is a schematic diagram of the structure of the external adjustment mechanism of a variable wheelbase chassis of a passenger car according to an embodiment of the present disclosure.

[0023] Figure 3 It is a schematic structural diagram of an inner adjustment mechanism and a bidirectional inner locking mechanism of a variable wheelbase chassis of a passenger car according to an embodiment of the present disclosure.

[0024] Figure 4 It is a schematic diagram of the front chassis structure of a passenger car variable wheelbase chassis according to one embodiment of the present disclosure.

[0025] Figure 5 It is a schematic diagram of the rear chassis structure of a variable wheelbase chassis for a passenger car according to an embodiment of the present disclosure.

[0026] The specific reference numerals in the figure are:

[0027] 1. External adjustment mechanism; 11. External U-shaped plate; 12. Locking hole;

[0028] 2. Internal adjustment mechanism; 21. Internal U-shaped plate; 22. Hydraulic cylinder;

[0029] 3. Bidirectional internal locking mechanism; 31. Fixed plate; 32. Driving motor; 33. Shuttle block; 34. Connecting rod; 35. Moving rod; 36. End plate; 37. Locking pin;

[0030] 4. Front chassis;

[0031] 5. Rear chassis. DETAILED DESCRIPTION

[0032] The present disclosure is further described in detail below in conjunction with the accompanying drawings and implementations. It is understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0033] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] Unless otherwise specified, the exemplary embodiments / embodiments shown will be understood as providing exemplary features of various details of some ways in which the technical concept of the present disclosure can be implemented in practice. Therefore, unless otherwise specified, the features of the various embodiments / embodiments can be combined, separated, interchanged and / or rearranged without departing from the technical concept of the present disclosure.

[0035] The use of cross-hatching and / or shading in the accompanying drawings is generally used to make the boundaries between adjacent components clear. As such, unless otherwise specified, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, the sizes and relative sizes of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence can be performed in a different order than described. For example, two successively described processes can be performed substantially simultaneously or in an order opposite to the described order. In addition, the same figure numbers represent the same components.

[0036] When a component is referred to as being "on" or "over," "connected to," or "coupled to" another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being "directly on," "directly connected to," or "directly coupled to" another component, there are no intervening components. For this purpose, the term "connected" may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0037] For descriptive purposes, the present disclosure may use spatially relative terms such as "under," "beneath," "under," "down," "over," "upper," "above," "higher," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, components described as "under" or "beneath" other components or features would subsequently be positioned "over" the other components or features. Thus, the exemplary term "under" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0038] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0039] Figure 1 It is a schematic diagram of the overall structure of a variable wheelbase chassis for a passenger car according to an embodiment of the present disclosure.

[0040] Figure 4 It is a schematic structural diagram of a front chassis 4 of a variable wheelbase chassis for a passenger car according to an embodiment of the present disclosure.

[0041] Figure 5 It is a schematic structural diagram of a rear chassis 5 of a variable wheelbase chassis for a passenger car according to an embodiment of the present disclosure.

[0042] like Figure 1-Figure 5 As shown, the variable wheelbase chassis of a passenger car disclosed in the present invention may include: an outer adjustment mechanism 1, an inner adjustment mechanism 2, a two-way inner locking mechanism 3, a front chassis 4, a rear chassis 5 and other components.

[0043] Figure 2It is a schematic structural diagram of an external adjustment mechanism 1 of a variable wheelbase chassis of a passenger car according to an embodiment of the present disclosure.

[0044] like Figure 2 As shown, in a preferred embodiment, the external adjustment mechanism 1 includes an external U-shaped plate 11 and a plurality of locking holes 12 , wherein the external U-shaped plate 11 is fixedly connected to the front chassis 4 , and the plurality of locking holes 12 are evenly arranged on both sides of the external U-shaped plate 11 .

[0045] Therefore, when the locking pin 37 is inserted into the locking hole 12 , the outer U-shaped plate 11 and the inner U-shaped plate 21 can be locked, so that the inner U-shaped plate 21 cannot move freely inside the outer U-shaped plate 11 .

[0046] Figure 3 It is a schematic structural diagram of an inner adjustment mechanism 2 and a bidirectional inner locking mechanism 3 of a variable wheelbase chassis of a passenger car according to an embodiment of the present disclosure.

[0047] like Figure 2 As shown, in the present disclosure, the internal adjustment mechanism 2 includes an inner U-shaped plate 21 and two hydraulic cylinders 22, wherein the inner U-shaped plate 21 is slidably arranged on the inner side of the outer U-shaped plate 11, and the two hydraulic cylinders 22 are respectively fixedly arranged on the inner top and inner bottom of the inner U-shaped plate 21, and the output shafts of the two hydraulic cylinders 22 are fixedly connected to the outer U-shaped plate 11.

[0048] Therefore, after the locking pin 37 is moved out from the inner side of the locking hole 12, the hydraulic cylinder 22 drives its output shaft to extend, thereby pushing the outer U-shaped plate 11, so that the inner U-shaped plate 21 slides inside the outer U-shaped plate 11, so as to complete the adjustment of the distance between the front chassis 4 and the rear chassis 5, that is, the wheelbase adjustment.

[0049] like Figure 3 As shown, in the present disclosure, the bidirectional inner locking mechanism 3 includes a fixed plate 31, a driving motor 32, a shuttle block 33 and two groups of locking components, any one group of locking components includes a connecting rod 34, a moving rod 35, an end plate 36 and two locking pins 37, wherein the fixed plate 31 is fixedly arranged on the inner side of the inner U-shaped plate 21, the driving motor 32 is fixedly arranged at the bottom of the fixed plate 31, the shuttle block 33 is located at the top of the fixed plate 31 and is transmission-connected to the driving motor 32, the connecting rod 34 is rotationally connected to one end of the top of the shuttle block 33 through a pin shaft, the moving rod 35 is rotationally connected to the connecting rod 34 through a pin shaft, the end plate 36 is fixedly arranged at the end of the moving rod 35, the two locking pins 37 are respectively fixedly arranged at the two ends of the outer side of the end plate 36, and the two locking pins 37 both slide through the inner U-shaped plate 21 and extend to the inner side of the adjacent locking hole 12.

[0050] Therefore, when it is necessary to release the lock of the outer U-shaped plate 11 and the inner U-shaped plate 21, the drive motor 32 drives the shuttle block 33 to rotate, and the shuttle block 33 rotates to synchronously pull the two connecting rods 34. When the connecting rod 34 is pulled, it drives the end plate 36 to move through the moving rod 35. When the end plate 36 moves, it drives the locking pin 37 to move out from the inside of the locking hole 12, thereby releasing the lock. When it is necessary to lock again later, the drive motor 32 drives the shuttle block 33 to rotate in the opposite direction, and then synchronously pushes the two end plates 36, so that the four locking pins 37 respectively enter the adjacent locking holes 12 to complete the locking.

[0051] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0052] 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. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A variable wheelbase chassis for a passenger car, characterized in that: include: An external adjustment mechanism, the external adjustment mechanism is used to install the internal adjustment mechanism and connect the front chassis; An inner adjustment mechanism, the inner adjustment mechanism is used to install the two-way inner locking mechanism and connect the rear chassis; A two-way internal locking mechanism, the two-way internal locking mechanism comprising a fixed plate, a drive motor, a shuttle block and two sets of locking components, each set of locking components comprising a connecting rod, a moving rod, an end plate and two locking pins; The fixing plate is fixedly arranged on the inner side of the inner U-shaped plate, the driving motor is fixedly arranged on the bottom of the fixing plate, the shuttle block is located on the top of the fixing plate and is drivingly connected to the driving motor, the connecting rod is rotatably connected to one end of the top of the shuttle block through a pin shaft, the moving rod is rotatably connected to the connecting rod through a pin shaft, the end plate is fixedly arranged on the end of the moving rod, the two locking pins are respectively fixedly arranged on both ends of the outer side of the end plate, and the two locking pins both slide through the inner U-shaped plate and extend to the inner side of the adjacent locking holes; a front chassis; and a rear chassis.

2. The variable wheelbase chassis for passenger vehicles according to claim 1, characterized in that: The outer adjustment mechanism includes an outer U-shaped plate and a plurality of locking holes.

3. The variable wheelbase chassis for passenger vehicles according to claim 2, characterized in that: The outer U-shaped plate is fixedly connected to the front chassis, and a plurality of locking holes are evenly arranged on both sides of the outer U-shaped plate.

4. The variable wheelbase chassis for passenger vehicles according to claim 3, characterized in that: The inner adjustment mechanism comprises an inner U-shaped plate and two hydraulic cylinders.

5. The variable wheelbase chassis for passenger vehicles according to claim 4, characterized in that: The inner U-shaped plate is slidably arranged on the inner side of the outer U-shaped plate, the two hydraulic cylinders are respectively fixedly arranged on the inner top and inner bottom of the inner U-shaped plate, and the output shafts of the two hydraulic cylinders are fixedly connected to the outer U-shaped plate.

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