Anti-collision detection device of unmanned forklift

Abstract

The anti-collision detection device comprises an air bag and a grabbing assembly, the air bag is used for being connected with a forklift body, the grabbing assembly comprises a connecting part and a driving part used for moving the connecting part in the direction close to the forklift body, the connecting part is connected with the air bag, and the driving part is used for driving the connecting part to move in the direction close to the forklift body. The driving part is used for being connected with the forklift body; the pressure sensor is connected with the air bag and used for detecting the pressure change of the air bag. The air bag has the effect of reducing abrasion of the air bag.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of unmanned forklifts, in particular to a collision detection device of an unmanned forklift. BACKGROUND

[0002] The collision detection device of the unmanned forklift is a device for detecting whether there is an obstacle in front of the unmanned forklift.

[0003] The collision detection device of the unmanned forklift in the related art includes an air bag and a pressure sensor, the air bag is fixedly connected with the forklift body, and the pressure sensor is connected with the air bag and is used for detecting whether the air bag is pressed, the pressure change of the air bag is detected through the pressure sensor, whether there is an obstacle in front of the unmanned forklift is judged, and then avoidance is performed.

[0004] In view of the above-mentioned related art, the inventors believe that the following defects exist: when the air bag contacts the front obstacle, the unmanned forklift needs to avoid, and the obstacle is in contact with the air bag during the avoidance process, and after long use, the air bag of the unmanned forklift is prone to wear. CONTENT OF THE UTILITY MODEL

[0005] In order to reduce the wear of the air bag during avoidance, the present application provides a collision detection device of an unmanned forklift.

[0006] The collision detection device of an unmanned forklift provided by the present application adopts the following technical scheme:

[0007] A collision detection device of an unmanned forklift, comprising an air bag and a grabbing assembly, the air bag is used for connecting with the forklift body, the grabbing assembly comprises a connecting part and a driving piece used for moving the connecting part in a direction close to the forklift body, the connecting part is connected with the air bag, and the driving piece is used for connecting with the forklift body; the pressure sensor is connected with the air bag, and the pressure sensor is used for detecting the pressure change of the air bag.

[0008] By adopting the above technical scheme, when the air bag is pressed and the pressure sensor detects it, the driving piece drives the connecting part to move in the direction close to the forklift body, so that the air bag is away from the obstacle, and the friction between the air bag and the obstacle can be reduced during avoidance. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 is a structural schematic view of a specific embodiment of the present application.

[0010] Figure 2 is Figure 1 is a structural schematic view of the other side in

[0011] Figure 3 is Figure 1A perspective view of the airbag, showing the internal components of the airbag.

[0012] Figure 4 is Figure 2 An enlarged view of circle A.

[0013] Reference signs: 1, airbag; 2, pressure sensor; 3, forklift body; 31, forklift body; 32, fork part; 4, grabbing assembly; 41, connecting part; 42, driving part; 421, driving cylinder; 422, electromagnet; 423, mounting bracket; 5, wear-resistant layer; 51, first magic tape; 52, second magic tape; 6, adjusting assembly; 61, moving plate; 62, locking part; 621, moving rod; 622, spring; 623, fixed plate; 624, locking nut; 7, forward direction. DETAILED DESCRIPTION

[0014] The following will be further described in detail with reference to the accompanying drawings. Figures 1-4 The application is further described in detail.

[0015] The embodiment of the application discloses an anti-collision detection device of an unmanned forklift. Referring to Figure 1 The anti-collision detection device of the unmanned forklift comprises an airbag 1, a pressure sensor 2 and a grabbing assembly 4, the airbag 1 is used for being connected with a forklift body 3, the grabbing assembly 4 comprises a connecting part 41 and a driving part 42 used for moving the connecting part 41 in a direction close to the forklift body 3, the connecting part 41 is connected with the airbag 1, and the driving part 42 is used for being connected with the forklift body 3; the pressure sensor 2 is connected with the airbag 1, and the pressure sensor 2 is used for detecting pressure changes of the airbag 1.

[0016] When the airbag 1 is pressed and the pressure sensor 2 detects, the driving part 42 drives the connecting part 41 to move in the direction close to the forklift body 3, so that the airbag 1 is away from the obstacle, and the friction between the airbag 1 and the obstacle can be reduced when avoiding.

[0017] In some embodiments, referring to Figure 1 , Figure 2 and Figure 3 At least one of the connecting part 41, the driving part 42 and the pressure sensor 2 is located in the airbag 1. If at least one of the connecting part 41, the driving part 42 and the pressure sensor 2 is located outside the airbag 1, the avoidance of the forklift is easily affected, and at least one of the connecting part 41, the driving part 42 and the pressure sensor 2 is easily contacted and stuck with the obstacle. Through the arrangement, the outer wall surface of the airbag 1 is not provided with at least one of the connecting part 41, the driving part 42 and the pressure sensor 2, the avoidance of the forklift is easy, and at least one of the connecting part 41, the driving part 42 and the pressure sensor 2 is put into the airbag 1, so that these components can be protected to a certain extent.

[0018] In some embodiments, referring toFigure 1 and Figure 3 The connecting part 41 is a piece of iron, the driving member 42 comprises a driving cylinder 421 and an electromagnet 422, the driving cylinder 421 penetrates the air bag 1, and the driving cylinder 421 is in sealed connection with the air bag 1, the piston rod of the driving cylinder 421 is located in the air bag 1, part of the cylinder body of the driving cylinder 421 is located in the air bag 1, another part of the cylinder body of the driving cylinder 421 is located outside the air bag 1, the driving cylinder 421 is used to connect with the forklift body 3, the electromagnet 422 is connected with the piston rod of the driving cylinder 421, and the electromagnet 422 is used to be adsorbed with the connecting part 41.

[0019] When the pressure sensor 2 detects that the air bag 1 has a pressure change, it indicates that the air bag 1 contacts with an obstacle, the electromagnet 422 is powered on, the driving cylinder 421 drives the electromagnet 422 to move in the direction of approaching the connecting part 41, the connecting part 41 is adsorbed with the powered electromagnet 422, then the driving cylinder 421 drives the connecting part 41 to move in the direction of approaching the forklift body 3, part of the air bag 1 also moves in the direction of approaching the forklift body 3 with the connecting part 41, so that the air bag 1 is separated from the obstacle, and the abrasion of the air bag 1 can be reduced in the avoiding process. After the avoidance is completed, the electromagnet 422 is powered off, and the air bag 1 returns to the original state.

[0020] Specifically, referring to Figure 1 and Figure 3 The driving member 42 comprises a mounting frame 423, the mounting frame 423 is located in the air bag 1, the mounting frame 423 is connected with the piston rod of the driving cylinder 421, the connecting part 41 is provided with at least two, the at least two connecting parts 41 are all connected with the inner wall of the air bag 1, the electromagnet 422 is provided with a plurality of, the plurality of electromagnets 422 are connected with the mounting frame 423, the plurality of electromagnets 422 correspond to the plurality of connecting parts 41 one by one, the plurality of electromagnets 422 are distributed in the horizontal direction, and the plurality of connecting parts 41 are distributed in the horizontal direction; in the horizontal direction, the plurality of electromagnets 422 are located between the connecting part 41 and the mounting frame 423.

[0021] In some embodiments, referring to Figure 1 and Figure 3 The forklift body 3 comprises a forklift vehicle body 31 and a fork part 32, the fork part 32 is connected with the forklift body 3, the advancing direction 7 of the forklift body 3 is the direction from the fork part 32 to the forklift vehicle body 31, and the air bag 1 and the grabbing assembly 4 are located on the side of the forklift vehicle body 31 away from the fork part 32. When contacting with the obstacle and decelerating, the goods can still be maintained above the fork part 32 under the action of inertia, and the goods cannot fall off from the fork part 32 in the direction away from the forklift vehicle body 31.

[0022] Specifically, referring to Figure 1 and Figure 3 The length direction of the driving cylinder 421 is parallel to the advancing direction 7 of the forklift body 3.

[0023] In some embodiments, referring to Figure 1 and Figure 3 , the anti-collision detection device comprises a wear-resistant layer 5, the wear-resistant layer 5 is located outside the air bag 1, and the wear-resistant layer 5 is connected with the air bag 1. The wear-resistant layer 5 is located between the air bag 1 and the obstacle, and the wear-resistant layer 5 can further reduce the excessive wear of the air bag 1, the wear-resistant layer 5 is wear-resistant cloth, the wear-resistant cloth includes cellulose fiber, polyamide fiber and the like, and the wear-resistant cloth is distributed along the horizontal direction with the connecting part 41.

[0024] In some embodiments, referring to Figure 1 and Figure 3 , the anti-collision detection device comprises a first magic tape 51 and a second magic tape 52, the first magic tape 51 is connected with the wear-resistant layer 5, the second magic tape 52 is connected with the outer wall of the air bag 1, and the first magic tape 51 and the second magic tape 52 are detachably connected.

[0025] Specifically, referring to Figure 1 and Figure 3 , the first magic tape 51 is located between the wear-resistant layer 5 and the second magic tape 52, and the wear-resistant layer 5 is sutured with the first magic tape 51. When the wear-resistant layer 5 needs to be replaced, the wear-resistant layer 5 only needs to be torn off from the second magic tape 52.

[0026] In some embodiments, referring to Figure 1 and Figure 3 , the anti-collision detection device comprises an adjusting assembly 6, the adjusting assembly 6 comprises a moving plate 61 and a locking piece 62, the moving plate 61 is slidably connected to the forklift body 3, the locking piece 62 is used for limiting the moving plate 61, the air bag 1 is connected with the moving plate 61, the air bag 1 is located on the side of the moving plate 61 away from the forklift body 3, and the driving part 42 is connected with the moving plate 61.

[0027] Specifically, referring to Figure 2 and Figure 4 , the moving plate 61 is slidably connected to the forklift body 3 along the forward direction 7 of the forklift body 3, and the cylinder body of the driving cylinder 421 is fixedly connected with the moving plate 61.

[0028] In some embodiments, referring to Figure 1 and Figure 2 Figure 2 Figure 4The locking member 62 comprises a moving rod 621, a spring 622, a fixed plate 623 and a locking nut 624. The fixed plate 623 is connected with the forklift body 3. The moving rod 621 is in sliding connection with the fixed plate 623. The moving rod 621 is connected with the moving plate 61. The spring 622 is located between the fixed plate 623 and the moving plate 61. One end of the spring 622 is connected with the fixed plate 623. The other end of the spring 622 is connected with the moving plate 61. The locking nut 624 is located on the side of the fixed plate 623 away from the moving plate 61. The locking nut 624 is in threaded connection with the moving rod 621. The locking nut 624 is in contact with the fixed plate 623. Specifically, the spring 622 is sleeved on the moving rod 621.

[0029] When the distance of the air bag 1 extending out of the forklift body 3 needs to be adjusted, the locking nut 624 is only needed to be adjusted. The spring 622 is compressed or elongated. The moving plate 61 is driven to slide along the advancing direction 7 of the forklift body 3. Thus, the distance of the air bag 1 extending out of the forklift body 3 is adjusted. In addition, the design of the spring 622 can improve the buffering effect.

[0030] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application. Any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A collision detection device for an unmanned fork truck, characterized by: The device comprises an air bag (1), a pressure sensor (2) and a grabbing assembly (4), the air bag (1) is connected with a forklift body (3), the grabbing assembly (4) comprises a connecting part (41) and a driving part (42), the driving part (42) is used for moving the connecting part (41) in a direction close to the forklift body (3), the connecting part (41) is connected with the air bag (1), and the driving part (42) is used for being connected with the forklift body (3); the pressure sensor (2) is connected with the air bag (1), and the pressure sensor (2) is used for detecting pressure change of the air bag (1).

2. The anti-collision detection device of the unmanned fork truck according to claim 1, characterized in that: At least one of the connecting part (41), the driving part (42) and the pressure sensor (2) is located in the air bag (1).

3. The anti-collision detection device of the unmanned fork truck according to claim 2, characterized in that: The connecting part (41) is an iron sheet, the driving part (42) comprises a driving cylinder (421) and an electromagnet (422), the driving cylinder (421) penetrates through the air bag (1), and the driving cylinder (421) is in sealed connection with the air bag (1); a piston rod of the driving cylinder (421) is located in the air bag (1), part of a cylinder body of the driving cylinder (421) is located in the air bag (1), and another part of the cylinder body of the driving cylinder (421) is located outside the air bag (1); the driving cylinder (421) is used for being connected with the forklift body (3); the electromagnet (422) is connected with the piston rod of the driving cylinder (421), and the electromagnet (422) is used for adsorbing the connecting part (41).

4. The anti-collision detection device of the unmanned fork truck according to claim 1, characterized in that: The forklift body (3) comprises a forklift vehicle body (31) and a fork part (32), the fork part (32) is connected with the forklift body (3), a forward direction (7) of the forklift body (3) is a direction from the fork part (32) to the forklift vehicle body (31), and the air bag (1) and the grabbing assembly (4) are located on a side, away from the fork part (32), of the forklift vehicle body (31).

5. The anti-collision detection device of the unmanned fork truck according to claim 1, characterized in that: The anti-collision detection device comprises a wear-resistant layer (5), the wear-resistant layer (5) is located outside the air bag (1), and the wear-resistant layer (5) is connected with the air bag (1).

6. The anti-collision detection device of the unmanned fork truck according to claim 5, characterized in that: The anti-collision detection device comprises a first magic tape (51) and a second magic tape (52), the first magic tape (51) is connected with the wear-resistant layer (5), the second magic tape (52) is connected with an outer wall of the air bag (1), and the first magic tape (51) and the second magic tape (52) are detachably connected.

7. The anti-collision detection device of the unmanned fork truck according to claim 1, characterized in that: The anti-collision detection device comprises an adjusting assembly (6), the adjusting assembly (6) comprises a moving plate (61) and a locking part (62), the moving plate (61) is in sliding connection with the forklift body (3), the locking part (62) is used for limiting the moving plate (61), the air bag (1) is connected with the moving plate (61), the air bag (1) is located on a side, away from the forklift body (3), of the moving plate (61), and the driving part (42) is connected with the moving plate (61).

8. The anti-collision detection device of the unmanned fork truck according to claim 7, characterized in that: The locking piece (62) comprises a moving rod (621), a spring (622), a fixed plate (623) and a locking nut (624), the fixed plate (623) is connected with the forklift body (3), the moving rod (621) is in sliding connection with the fixed plate (623), the moving rod (621) is connected with the moving plate (61), the spring (622) is located between the fixed plate (623) and the moving plate (61), one end of the spring (622) is connected with the fixed plate (623), the other end of the spring (622) is connected with the moving plate (61), the locking nut (624) is located on the side, away from the moving plate (61), of the fixed plate (623), the locking nut (624) is in threaded connection with the moving rod (621), and the locking nut (624) is in contact with the fixed plate (623).

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