CN215706719U - Unmanned vehicle frame structure and unmanned vehicle - Google Patents

Abstract

The utility model discloses a frame structure of an unmanned vehicle, which comprises a frame, wherein the middle part of the frame is hollow, the bottom of the frame is provided with an opening, a bracket is arranged at the opening, a lifting driving piece for driving the bracket to move up and down and a locking mechanism for locking the bracket are arranged on the frame, and a guide assembly is arranged between the bracket and the frame. The utility model also discloses an unmanned vehicle which comprises the unmanned vehicle frame. The utility model realizes that the function cabinet can be lifted on the frame, is convenient for loading and unloading the function cabinet, can reduce the gravity center of the function cabinet and can prevent the function cabinet from accidentally falling.

Description

Unmanned vehicle frame structure and unmanned vehicle

Technical Field

The utility model relates to the technical field of intelligent vehicles, in particular to an unmanned vehicle frame structure and an unmanned vehicle.

Background

The chassis of the existing unmanned vehicle is high, and the carried functional cabinets (such as an express cabinet, a financial cabinet, a retail cabinet and the like) are mostly installed above the vehicle frame through bolts, lock catches and the like, so that the position is high and cannot be adjusted. When the functional cabinet is assembled and disassembled, more manpower is needed or auxiliary equipment such as a forklift is used, the operation is carried out from the left side and the right side or the rear side of the unmanned vehicle, the lifting on the vehicle frame cannot be directly carried out, and the convenience is not enough. Meanwhile, the center of gravity of the chassis and the center of gravity of the functional cabinet are higher, so that the stability of the unmanned vehicle in the running process is not kept favorably. The existing low-floor public transport vehicle reduces the height of the floor to a certain extent, is convenient for passengers to get on or off the vehicle, but the container still can not be directly lifted between the ground and the floor of the vehicle, and is not convenient enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a frame structure of an unmanned vehicle, wherein a function cabinet can be lifted on a vehicle frame, the function cabinet is convenient to assemble and disassemble, the gravity center of the function cabinet can be lowered, and the function cabinet is prevented from accidentally falling.

The utility model further provides an unmanned vehicle comprising the frame structure.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides an unmanned aerial vehicle frame structure, includes the frame, frame middle part fretwork and bottom opening, the opening part is equipped with the bracket, be equipped with on the frame and be used for driving the lift driving piece that the bracket reciprocated and be used for locking the locking mechanism of bracket, the bracket with be equipped with the direction subassembly between the frame.

As a further improvement of the above technical solution:

the frame includes the link and locates the support at link both ends, fretwork and opening are located two between the support, the bracket is located the below of link, two the support relative arrangement in the both sides of bracket.

The two supports are respectively provided with the lifting driving piece and the locking mechanism, and the guide assembly is arranged between the two supports and the bracket.

The guide assembly comprises two rows of lifting guide rails arranged on the support, a guide support arranged on the bracket and rolling pieces arranged on the guide support, the guide support is positioned between the two rows of lifting guide rails, and the rolling pieces are in rolling fit with the lifting guide rails.

The rolling parts comprise a first rolling part, a second rolling part and a third rolling part, the first rolling part is in rolling fit with the inner side of the lifting guide rail, the lifting guide rail is provided with a guide groove, the second rolling part is in rolling fit with one side wall of the guide groove, and the third rolling part is in rolling fit with the other side wall of the guide groove.

Locking mechanism is including locating mount pad on the support, locate a pair of clamping jaw on the mount pad, be used for driving the spring bolt that a pair of clamping jaw opened and shut and be used for driving the locking driving piece that the spring bolt reciprocated, the clamping jaw with the mount pad is articulated, the spring bolt is located a pair of between the clamping jaw and with a pair of clamping jaw scarf cooperation.

The mounting seat is provided with an elastic plunger, and the clamping jaw is provided with a first locking hole and a second locking hole which are matched with the elastic plunger.

The locking driving piece is connected with a positioning component matched with the proximity switch.

The mounting seat is provided with a linear bearing, and the lock tongue penetrates through the linear bearing.

The locking driving part is a motor, the output end of the locking driving part is connected with a nut, a screw rod penetrates through the nut, and each pair of lock tongues corresponding to the clamping jaws are connected with the screw rod through a connecting rod respectively.

And a rubber shock absorber is arranged between the lock tongue and the connecting rod.

An unmanned vehicle comprises the frame structure of the unmanned vehicle.

Compared with the prior art, the utility model has the advantages that: the frame structure of the unmanned vehicle disclosed by the utility model has the advantages that the middle part of the frame is hollowed, the bottom of the frame is opened, the bracket is arranged at the opening, the bracket realizes the up-and-down movement relative to the frame through the lifting driving piece, the connecting bracket and the frame are connected into a whole through the locking mechanism, the connecting strength and the reliability between the bracket and the frame body are favorably improved, the bracket can be prevented from accidentally falling under the load action of the function cabinet, the guide assembly provides a guide effect for the lifting motion of the bracket, the lifting process is more stable and smooth, and the motion precision is higher. When the multifunctional cabinet is used, the functional cabinet is placed on the bracket, the space of the hollowed part of the frame can be effectively utilized, and when the functional cabinet needs to be assembled and disassembled, the locking mechanism is unlocked due to the opening at the bottom of the frame, and the lifting driving piece can drive the functional cabinet to descend to the ground, so that the subsequent operation is convenient, the manpower is reduced, and auxiliary equipment such as a forklift is not needed; meanwhile, along with the up-and-down movement of the bracket, the distance between the bracket and the frame is adjustable, and the unmanned vehicle can be matched with functional cabinets with different heights; before going, the lift driving piece drives bracket, function cabinet and rises to setting for the height and ground separation, and locking mechanism locks bracket and frame, because the function cabinet is located the frame downside, compares in the form of function cabinet arrangement in the frame top, and the focus is lower, is favorable to keeping the stability of unmanned vehicle in-process of traveling.

The unmanned vehicle disclosed by the utility model comprises the unmanned vehicle frame structure, so that the unmanned vehicle has the advantages.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a front view schematically showing the lowered state of the bracket according to the present invention.

Fig. 3 is a front view schematically showing the ascending state of the bracket according to the present invention.

Fig. 4 is a side view schematic of the present invention.

Fig. 5 is an enlarged perspective view of the guide assembly of the present invention.

Fig. 6 is an enlarged perspective view of the locking mechanism of the present invention.

Fig. 7 is an enlarged perspective view of the mounting base, locking tongue and clamping jaw of the present invention.

Fig. 8 is an enlarged perspective view of the holding jaw of the present invention.

Fig. 9 is an enlarged perspective view of the latch bolt of the present invention.

The reference numerals in the figures denote: 1. a frame; 11. a support; 12. a connecting frame; 14. a lifting guide rail; 15. a guide groove; 2. a bracket; 21. a guide bracket; 3. a lifting drive member; 4. a locking mechanism; 40. a linear bearing; 41. a mounting seat; 42. a clamping jaw; 43. a latch bolt; 44. locking the driving member; 441. a screw rod; 443. a connecting rod; 444. a rubber damper; 45. an elastic plunger; 46. a first lock hole; 47. a second lock hole; 48. a proximity switch; 49. a positioning member; 5. a guide assembly; 6. a rolling member; 61. a first rolling member; 62. a second rolling member; 63. a third rolling member; 7. a wedge surface.

Detailed Description

The utility model is described in further detail below with reference to the figures and specific examples of the specification.

As shown in fig. 1 to 9, the frame structure of the unmanned vehicle of the present embodiment includes a frame 1, the frame 1 has a hollow middle portion and an opening at the bottom, a bracket 2 is disposed at the opening, a lifting driving member 3 for driving the bracket 2 to move up and down and a locking mechanism 4 for locking the bracket 2 are disposed on the frame 1, and a guiding assembly 5 is disposed between the bracket 2 and the frame 1.

This unmanned vehicles frame structure, frame 1 middle part fretwork and bottom opening, the opening part is equipped with bracket 2, reciprocating of relative frame 1 is realized through lift driving piece 3 to bracket 2, will link bracket 2 and frame 1 into an organic whole through locking mechanism 4, be favorable to improving joint strength and reliability between bracket 2 and the frame 1, and can prevent that bracket 2 accident from dropping under the load effect of function cabinet (not shown in the figure, for example, express delivery cabinet, retail cabinet etc.), guide assembly 5 provides the guide effect for the elevating movement of bracket 2, make the lift process more steady, smoothly, have higher motion precision. When the multifunctional cabinet is used, the functional cabinet is placed on the bracket 2, the space of the hollowed part of the frame 1 can be effectively utilized, and when the functional cabinet needs to be assembled and disassembled, the locking mechanism 4 is unlocked due to the opening at the bottom of the frame 1, and the lifting driving piece 3 can drive the functional cabinet to descend to the ground, so that the subsequent operation is convenient, the manpower is reduced, and auxiliary equipment such as a forklift is not needed; meanwhile, along with the up-and-down movement of the bracket 2, the distance between the bracket 2 and the frame 1 is adjustable, and the functional cabinets with different heights can be matched; before going, the lifting driving piece 3 drives the bracket 2, the function cabinet rises to the set height and separates with ground, and locking mechanism 4 locks bracket 2 and frame 1, because the function cabinet is located frame 1 downside, arranges the form in frame 1 top in comparison with the function cabinet, and the focus is lower, is favorable to keeping the stability of unmanned vehicle in-process of traveling. The lifting driving member 3 can drive the bracket 2 to lift, for example, by using an air cylinder, an oil cylinder, an electric push rod, etc.

Further, in this embodiment, the frame 1 includes a connecting frame 12 and brackets 11 disposed at two ends of the connecting frame 12, the hollow and the opening are located between the two brackets 11, the bracket 2 is located below the connecting frame 12, and the two brackets 11 are disposed at two sides of the bracket 2 relatively. The connecting frame 12 and the supports 11 at two ends jointly form the n-shaped frame 1, the bracket 2 is arranged between the two supports 11, the space between the bracket 2 and the connecting frame 12 can be increased by utilizing the supports 11, and a functional cabinet with larger height can be accommodated.

In a preferred embodiment, the two supports 11 are provided with a lifting driving member 3 and a locking mechanism 4, and a guide assembly 5 is arranged between the two supports 11 and the bracket 2. The both sides that bracket 2 is relative all are equipped with lift driving piece 3, locking mechanism 4 and guide assembly 5 for bracket 2's stress balance nature is better, and bearing capacity is stronger. Meanwhile, the bracket 2 plays a role in connecting and supporting the two supports 11 (the upper sides of the two supports 11 are connected and supported through the connecting frame 12, and the lower sides of the two supports 11 are connected and supported through the bracket 2), so that the phenomenon that the frame 1 deforms when a vehicle runs on a distorted road surface, particularly in the acceleration and deceleration process or when a functional cabinet is assembled and disassembled, is avoided.

Further, in this embodiment, the guiding assembly 5 includes two rows of lifting guide rails 14 disposed on the support 11, a guiding support 21 disposed on the bracket 2, and a rolling element 6 disposed on the guiding support 21, where the rolling element 6 may be, for example, a rolling bearing or a roller, and reduces friction resistance during movement, the guiding support 21 is located between the two rows of lifting guide rails 14, the rolling element 6 is in rolling fit with the lifting guide rails 14, and the lifting driving element 3 is connected to the guiding support 21, that is, the guiding support 21 drives the bracket 2 to lift. Through the cooperation of the rolling part 6 and the lifting guide rail 14, the lifting process of the bracket 2 is ensured to be more stable and smooth, and the movement precision is higher.

As a preferred embodiment, the rolling member 6 includes a first rolling member 61, a second rolling member 62, and a third rolling member 63, the first rolling member 61 is in rolling engagement with the inner side of the lifting rail 14 (or the side of the lifting rail 14 opposite to the two rows of the same bracket 11), the lifting rail 14 is provided with a guide groove 15, the second rolling member 62 is in rolling engagement with one sidewall of the guide groove 15, and the third rolling member 63 is in rolling engagement with the other sidewall of the guide groove 15. Referring to fig. 2 and 3, the first rolling member 61 is engaged with the lifting guide rail 14 to prevent the guide bracket 21 and the bracket 2 from shaking back and forth relative to the frame 1; through the cooperation of the second rolling piece 62, the third rolling piece 63 and the guide groove 15, the guide support 21 and the bracket 2 can be prevented from shaking left and right relative to the frame 1, the structure is reliable, and the movement precision is high.

Further, in this embodiment, the locking mechanism 4 includes a mounting seat 41 disposed on the bracket 11, a pair of clamping jaws 42 disposed on the mounting seat 41, a locking tongue 43 for driving the pair of clamping jaws 42 to open and close, and a locking driving member 44 for driving the locking tongue 43 to move up and down, the clamping jaws 42 are hinged to the mounting seat 41, and the locking tongue 43 is located between the pair of clamping jaws 42 and is engaged with the wedge surfaces 7 of the pair of clamping jaws 42. Because the wedge surfaces 7 are adopted for matching between the locking tongue 43 and the pair of clamping jaws 42, when the locking driving piece 44 drives the locking tongue 43 to move up and down, the lower ends of the pair of clamping jaws 42 can be close to each other or be far away from each other, and the guide support 21 (specifically, the mounting shaft of the second rolling piece 62) can be clamped when the locking claw is close to the clamping claw or closed to the clamping claw, so that locking is realized, and when the locking claw is far away from the clamping claw or opened to the clamping claw, the mounting shaft of the second rolling piece 62 can be separated from the pair of clamping jaws 42 to unlock the clamping claw, so that the structure is simple, and the locking is reliable.

Furthermore, in the present embodiment, the mounting seat 41 is provided with an elastic plunger 45, and the clamping jaw 42 is provided with a first locking hole 46 and a second locking hole 47 which are matched with the elastic plunger 45. When the elastic plunger 45 is positioned in the first lock hole 46, the pair of clamping jaws 42 are opened to the right, and when the elastic plunger 45 is positioned in the second lock hole 47, the pair of clamping jaws 42 are closed to the right, so that the structure is simple and reliable, and the pair of clamping jaws 42 are prevented from being damaged due to excessive opening and closing.

Further, in the present embodiment, a proximity switch 48 is provided on the mounting base 41, and a positioning member 49 which is engaged with the proximity switch 48 is connected to the lock actuator 44. When the locking driving piece 44 drives the bolt 43 to move up and down, the positioning part 49 also moves synchronously, when the proximity switch 48 detects the positioning part 49, the bolt 43 is moved in place, and the locking driving piece 44 stops acting, so that the structure is simple and reliable, and the automation degree is high.

In a preferred embodiment, the mounting seat 41 is provided with a linear bearing 40, and the latch 43 is inserted into the linear bearing 40. Linear bearing 40 is used to provide a guiding function for the up-and-down movement of locking tongue 43, and prevents locking tongue 43 from shifting.

As a preferred embodiment, more than two pairs of clamping jaws 42 are disposed on the mounting base 41, so that both ends of the mounting shaft of the second rolling element 62 can be clamped, the stress balance is better, and further the carrying capacity of the bracket 2 is stronger, the locking driving element 44 is a motor, and the output end of the locking driving element is connected with a nut (not shown in the figure), a screw rod 441 passes through the nut, and the locking tongue 43 corresponding to each pair of clamping jaws 42 is connected with the screw rod 441 through a connecting rod 443 respectively. When the clamping device works, the motor rotates to drive the nut to rotate, the screw rod 441 penetrating through the nut moves, and the screw rod 441 further drives the lock tongues 43 to synchronously move through the connecting rods 443, so that the clamping jaws 42 are synchronously opened or closed.

As a preferred embodiment, a rubber damper 444 is provided between the latch tongue 43 and the connecting rod 443. Set up rubber shock absorber 444, on the one hand can realize flexonics, make things convenient for the assembly of each spring bolt 43, eliminate the error in processing, the assembling process, on the other hand can prevent that the vibrations of unmanned vehicle in-process from transmitting lead screw 441 and motor through connecting rod 443, avoids being damaged.

The unmanned vehicle of the embodiment comprises the frame structure of the unmanned vehicle.

The unmanned vehicle comprises the unmanned vehicle frame structure, and therefore the unmanned vehicle has the advantages.

The method for getting on and off the unmanned vehicle by the functional cabinet comprises the following steps:

1) unlocking the locking mechanism 4: the locking driving piece 44 rotates to drive the nut to rotate, the screw rod 441 penetrating through the nut moves downwards, the screw rod 441 further drives each bolt 43 to synchronously move downwards through each connecting rod 443, and each pair of clamping jaws 42 are synchronously opened;

2) the carriage 2 descends: the lifting driving piece 3 drives the guide bracket 21 and the bracket 2 to descend until the bracket 2 descends to the ground;

3) mounting the functional cabinet on the bracket 2, or dismounting the functional cabinet from the bracket 2;

4) the bracket 2 is lifted: the lifting driving piece 3 drives the guide bracket 21 and the bracket 2 to rise to a set height;

5) the locking mechanism 4 locks: the locking driving member 44 rotates reversely to drive the nut to rotate reversely, the screw rod 441 penetrating through the nut moves upwards, the screw rod 441 further drives the lock tongues 43 to move upwards synchronously through the connecting rods 443, each pair of clamping jaws 42 are closed synchronously, when the proximity switch 48 detects the positioning member 49, it indicates that the lock tongues 43 have moved in place, the locking driving member 44 stops acting, and each pair of clamping jaws 42 clamp and fix the mounting shaft of the second rolling member 62.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the utility model, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.

Claims (12)

1. An unmanned vehicle frame structure, includes frame (1), its characterized in that: frame (1) middle part fretwork and bottom opening, the opening part is equipped with bracket (2), be equipped with on frame (1) and be used for driving lift driving piece (3) that bracket (2) reciprocated and be used for locking mechanism (4) of bracket (2), bracket (2) with be equipped with between frame (1) direction subassembly (5).

2. The vehicle frame structure of claim 1, wherein: frame (1) includes link (12) and locates support (11) at link (12) both ends, fretwork and opening are located two between support (11), bracket (2) are located the below of link (12), two support (11) relative arrangement in the both sides of bracket (2).

3. The vehicle frame structure of claim 2, wherein: two all be equipped with on support (11) lift driving piece (3) with locking mechanism (4), two support (11) with all be equipped with between bracket (2) guide component (5).

4. The vehicle frame structure of claim 3, wherein: the guide assembly (5) comprises two rows of lifting guide rails (14) arranged on the support (11), a guide support (21) arranged on the bracket (2) and rolling pieces (6) arranged on the guide support (21), the guide support (21) is positioned between the two rows of lifting guide rails (14), and the rolling pieces (6) are matched with the lifting guide rails (14) in a rolling manner.

5. The vehicle frame structure of claim 4, wherein: the rolling member (6) comprises a first rolling member (61), a second rolling member (62) and a third rolling member (63), the first rolling member (61) is in rolling fit with the inner side of the lifting guide rail (14), a guide groove (15) is formed in the lifting guide rail (14), the second rolling member (62) is in rolling fit with one side wall of the guide groove (15), and the third rolling member (63) is in rolling fit with the other side wall of the guide groove (15).

6. The vehicle frame structure according to any one of claims 3 to 5, characterized in that: locking mechanism (4) are including locating mount pad (41) on support (11), locate a pair of clamping jaw (42) on mount pad (41), be used for driving spring bolt (43) that a pair of clamping jaw (42) opened and shut and be used for driving locking driving piece (44) that spring bolt (43) reciprocated, clamping jaw (42) with mount pad (41) are articulated, spring bolt (43) are located a pair of between clamping jaw (42) and with the cooperation of a pair of clamping jaw (42) scarf (7).

7. The unmanned vehicle frame structure of claim 6, wherein: be equipped with elasticity plunger (45) on mount pad (41), be equipped with on clamping jaw (42) with first lockhole (46) and second lockhole (47) of elasticity plunger (45) complex.

8. The unmanned vehicle frame structure of claim 6, wherein: and a proximity switch (48) is arranged on the mounting seat (41), and the locking driving piece (44) is connected with a positioning component (49) matched with the proximity switch (48).

9. The unmanned vehicle frame structure of claim 6, wherein: the mounting seat (41) is provided with a linear bearing (40), and the lock tongue (43) penetrates through the linear bearing (40).

10. The unmanned vehicle frame structure of claim 6, wherein: the mounting seat (41) is provided with more than two pairs of clamping jaws (42), the locking driving piece (44) is a motor, the output end of the locking driving piece is connected with a nut, a screw rod (441) penetrates through the nut, and the locking tongues (43) corresponding to the clamping jaws (42) are respectively connected with the screw rod (441) through a connecting rod (443).

11. The vehicle frame structure of claim 10, wherein: a rubber shock absorber (444) is arranged between the bolt (43) and the connecting rod (443).

12. An unmanned vehicle which is characterized in that: comprising the unmanned vehicle frame structure of any one of claims 1 to 11.

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