An AGV conveying device for logistics with anti-collision function

Abstract

The present invention discloses an AGV conveying device for logistics with an anti-collision function, which relates to the field of conveying devices and comprises an AGV conveying device main body, wherein a driving base for movement is provided at the bottom of the AGV conveying device main body, a loading platform for carrying goods is installed on the top of the AGV conveying device main body, and a trigger mechanism is provided between the AGV conveying device main body and the loading platform; an anti-collision mechanism for preventing goods on the top of the loading platform from being hit, the anti-collision mechanism is installed on the outside of the AGV conveying device main body and the loading platform, and a rotating mechanism is provided at the connection between the anti-collision mechanism and the loading platform; a limiting mechanism, wherein a limiting mechanism for adjusting the state of the anti-collision mechanism is installed between the anti-collision mechanism and the rotating mechanism, and the present invention designs an anti-collision mechanism that can be lifted and moved on the periphery of the loading platform, so that when the loading platform transports goods, the anti-collision mechanism rises to form all-round protection for the goods on the loading platform, and under the action of the limiting mechanism, the stability of the anti-collision mechanism can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of conveying devices, in particular to an AGV conveying device for logistics with an anti-collision function. Background Art

[0002] AGV intelligent conveying device is a kind of intelligent transport vehicle that can be put into logistics warehousing on a large scale. AGV intelligent conveying device can operate according to the operator's instructions. For logistics transportation, heavy-duty AGV can be used outdoors. For large-scale logistics cargo transportation, it can greatly reduce manual labor and improve the efficiency of cargo transportation. The bottom of the AGV transport device is equipped with a laser safety radar system, which can avoid collisions during the driving process of the AGV transport device and brake in time.

[0003] When the AGV transport device that transports goods outdoors is running, although it can avoid or brake according to obstacles on the route, it does not take into account that the top of the AGV conveyor is an obstacle avoidance blind spot. During the movement of the goods, if there is an obstacle extending in the direction of the goods, the safety radar at the bottom of the AGV conveyor cannot detect it. If the AGV conveyor continues to move, the obstacle will touch the goods. In the worst case, the goods will fall. For this reason, we propose an AGV conveyor device for logistics with an anti-collision function. Summary of the invention

[0004] The object of the present invention is to provide an AGV conveying device for logistics with an anti-collision function to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an AGV conveying device for logistics with an anti-collision function, comprising an AGV conveying device main body, and a driving base for movement is provided at the bottom of the AGV conveying device main body, a loading platform for carrying goods is installed on the top of the AGV conveying device main body, and a trigger mechanism is provided between the AGV conveying device main body and the loading platform; an anti-collision mechanism to prevent the goods on the top of the loading platform from being hit, the anti-collision mechanism is installed on the outside of the AGV conveying device main body and the loading platform, and a rotating mechanism is provided at the connection between the anti-collision mechanism and the loading platform; a limiting mechanism, the limiting mechanism for adjusting the state of the anti-collision mechanism is installed between the anti-collision mechanism and the rotating mechanism, and when the AGV conveying device is not transporting goods, its anti-collision mechanism is located at the bottom, that is, the anti-collision mechanism will not protect the upper part of the loading platform.

[0006] Preferably, the rotating mechanism includes a rotating ring cocentrically mounted on the outside of the stage, and raised ring portions are fixedly mounted on the upper and lower ends of the rotating ring near the inner side of the rotating ring. Two symmetrically distributed limit cover sleeves are fixedly mounted on the upper and lower ends of the stage by bolts, and the limit cover sleeves are rotatably engaged with the raised ring portions. The rotating ring is clamped and limited by the two limit cover sleeves, and can be rotated around the outside of the stage under the support of the positioning assembly. A partition portion is provided between the inner wall of the rotating ring and the outer surface of the stage, and a positioning assembly is provided on the inner side of the partition portion.

[0007] Preferably, the positioning assembly includes protrusions fixedly installed on the inner wall of the rotating ring at equal intervals in a circular array, a plurality of radially distributed straight grooves are opened inside the worktable, and a sliding disk is slidably embedded inside the straight groove, a spring 2 is provided at one end of the sliding disk close to the center of the worktable, and a limiting column slidably embedded inside the partition is fixedly installed at the other end of the sliding disk, and the limiting column one end away from the sliding disk is movably embedded in the gap between the plurality of protrusions. Under normal conditions, when the plurality of limiting columns are embedded in the gaps between the protrusions, the rotating ring is in a limited stationary state.

[0008] Preferably, the anti-collision mechanism includes a plurality of protective rods slidably embedded in the rotating ring and distributed equidistantly around the circumference, and pads are fixedly installed at both upper and lower ends of the protective rods. The protective rods are not in contact with the partition, and the lower end horizontal plane of the pads distributed at the bottom of the protective rods is higher than the upper end horizontal plane of the driving base. The circular guardrail composed of the protective rods and the pads can be raised and lowered inside the rotating ring.

[0009] Preferably, the limiting mechanism includes a plurality of arc-shaped sliding cavities opened in the rotating ring and distributed equidistantly around the circumference, and the number of the arc-shaped sliding cavities is consistent with the number of the protective rods, the arc-shaped sliding cavity is slidably embedded with an arc-shaped sliding column, and an arc-shaped brake rod is fixedly installed at one end of the arc-shaped sliding column close to the protective rod, a spring is fixedly installed between the end of the arc-shaped sliding column away from the arc-shaped brake rod and the arc-shaped sliding cavity, a positioning hole is opened in the interior of the protective rod, and the arc-shaped brake rod slides through the positioning hole, an extension plate is fixedly installed on the outer surface of the arc-shaped sliding column for sliding engagement with the arc-shaped sliding cavity, and the extension plate extends to the outside of the rotating ring, a dial ring is fixedly installed between the plurality of extension plates, and the dial ring is slidably sleeved on the outer surface of the rotating ring, when the protective rod rises to the top, the arc-shaped brake rod can be embedded in the positioning hole under the push of the spring, and the protective plate cannot slide down at this time.

[0010] Preferably, the trigger mechanism includes a T-shaped ring cavity opened at the top of the AGV conveying device body, a T-shaped cylinder is fixedly installed at the bottom of the loading platform, and the T-shaped cylinder is placed inside the T-shaped ring cavity, there is a gap between the outer surface of the T-shaped cylinder and the inner wall of the T-shaped ring cavity, a plurality of springs three equidistantly distributed in a circle are fixedly installed between the large outer diameter of the T-shaped cylinder and the large inner diameter of the T-shaped ring cavity, a micro switch for controlling the start and stop of the driving base is fixedly embedded on the inner side of the T-shaped ring cavity corresponding to the top center of the AGV conveying device body, a conical groove is opened at the bottom of the T-shaped cylinder, when the loading platform is offset, the conical groove at the bottom of the T-shaped cylinder can squeeze the micro switch, and the operation of the driving base is stopped in time under the action of triggering the micro switch.

[0011] Preferably, the end face of the protrusion close to the worktable is provided with a rounded chamfered portion, and the end face of the limit column away from the sliding plate is provided with an oblique chamfered portion. Through the design of the rounded chamfered portion and the oblique chamfered portion, when the rotating ring is subjected to a large rotational force, the protrusion can push the limit column, causing the rotating ring to idle.

[0012] Preferably, a plurality of friction blocks equidistantly distributed around a circle are fixedly mounted on the outer surface of the dial ring, and the design of the friction blocks facilitates the user to rotate the dial ring.

[0013] Preferably, the conical groove, the micro switch and the T-shaped cylinder are coaxial, and the bottom diameter of the conical groove is larger than the outer diameter of the micro switch to ensure that the micro switch can be triggered by the conical groove when the T-shaped cylinder is offset in any direction.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention designs an anti-collision mechanism that can be lifted and moved on the periphery of the loading platform. When the loading platform is carrying goods, the anti-collision mechanism rises to form an all-round protection for the goods on the loading platform, and under the action of the limiting mechanism, the stability of the anti-collision mechanism can be guaranteed;

[0016] 2. When the AGV conveying device body of the present invention is transporting goods, if the anti-collision mechanism is hit, the loading platform and the T-shaped cylinder will be offset. The offset action can cause the conical groove to trigger the micro switch, so that the driving base stops transportation in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure of the protection rod, the pad and the limit cover sleeve of the present invention;

[0019] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 It is a cross-sectional view of the stage, the rotating sleeve and the rotating ring of the present invention;

[0021] Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle;

[0022] Figure 6 It is a schematic diagram of the cross-sectional structure of the present invention;

[0023] Figure 7 For the present invention Figure 6 Enlarged view of point C in the middle;

[0024] Figure 8 This is a schematic diagram of the internal structure of the T-shaped ring cavity of the present invention;

[0025] Fig. 9 It is a schematic diagram of the conical groove and micro switch structure of the present invention.

[0026] In the figure: 1-AGV conveying device body; 2-driving base; 3-loading platform; 4-anti-collision mechanism; 5-rotating mechanism; 6-limiting mechanism; 7-positioning assembly; 8-rotating collar; 9-protective rod; 10-pad; 11-limiting cover; 12-raised ring; 13-bump; 14-arc sliding column; 15-spring one; 16-arc brake rod; 17-turn ring; 18-positioning hole; 19-friction block; 20-extension plate; 21-arc sliding cavity; 22-partition; 23-straight groove; 24-sliding plate; 25-spring two; 26-limiting column; 27-bevel chamfered portion; 28-round chamfered portion; 29-T-shaped ring cavity; 30-T-shaped cylinder; 31-spring three; 32-conical groove; 33-micro switch. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-9The present invention provides a technical solution: an AGV conveying device for logistics with an anti-collision function, comprising an AGV conveying device body 1, and a driving base 2 for movement is provided at the bottom of the AGV conveying device body 1, a loading platform 3 for carrying goods is installed on the top of the AGV conveying device body 1, and a trigger mechanism is provided between the AGV conveying device body 1 and the loading platform 3; an anti-collision mechanism 4 to prevent the goods on the top of the loading platform 3 from being hit, the anti-collision mechanism 4 is installed on the outside of the AGV conveying device body 1 and the loading platform 3, and a rotating mechanism 5 is provided at the connection between the anti-collision mechanism 4 and the loading platform 3; a limiting mechanism 6, the limiting mechanism 6 for adjusting the state of the anti-collision mechanism 4 is installed between the anti-collision mechanism 4 and the rotating mechanism 5, and when the AGV conveying device is not transporting goods, its anti-collision mechanism 4 is located at the bottom, that is, the anti-collision mechanism 4 will not form protection for the upper part of the loading platform 3.

[0029] The rotating mechanism 5 includes a rotating ring 8 coaxially mounted on the outside of the stage 3, and a raised ring portion 12 is fixedly mounted on the upper and lower ends of the rotating ring 8 near the inner side of the rotating ring 8. Two symmetrically distributed limit cover sleeves 11 are fixedly mounted on the upper and lower ends of the stage 3 by bolts, and the limit cover sleeves 11 are rotatably engaged with the raised ring portion 12. The rotating ring 8 is clamped and limited up and down by the two limit cover sleeves 11, and can be rotated around the outside of the stage 3 under the support of the positioning assembly 7. A partition 22 is provided between the inner wall of the rotating ring 8 and the outer surface of the stage 3, and a positioning assembly 7 is provided on the inner side of the partition 22.

[0030] The positioning assembly 7 includes protrusions 13 fixedly installed on the inner wall of the rotating ring 8 at equal intervals in a circular array, a plurality of radially distributed straight grooves 23 are opened inside the worktable 3, and a sliding plate 24 is slidably embedded inside the straight groove 23, a spring 25 is provided at one end of the sliding plate 24 close to the center of the worktable 3, and a limiting column 26 slidably embedded in the partition 22 is fixedly installed at the other end of the sliding plate 24, and the end of the limiting column 26 away from the sliding plate 24 is movably embedded in the gap between the plurality of protrusions 13. Under normal conditions, when the plurality of limiting columns 26 are embedded in the gap between the protrusions 13, the rotating ring 8 is in a limited and immobile state.

[0031] The anti-collision mechanism 4 includes a plurality of protective rods 9 slidably embedded in the rotating ring 8 and distributed equidistantly around the circumference, and pads 10 are fixedly installed at the upper and lower ends of the protective rods 9. The protective rods 9 are not in contact with the partition 22. The lower end horizontal plane of the pads 10 distributed at the bottom of the protective rods 9 is higher than the upper end horizontal plane of the driving base 2. The circular guardrail composed of the protective rods 9 and the pads 10 can be raised and lowered inside the rotating ring 8.

[0032] The limiting mechanism 6 includes a plurality of arc-shaped sliding cavities 21 which are equidistantly distributed on the circumference and are opened inside the rotating ring 8, and the number of the arc-shaped sliding cavities 21 is consistent with the number of the protective rods 9. The arc-shaped sliding column 14 is slidably embedded inside the arc-shaped sliding cavity 21, and the arc-shaped brake rod 16 is fixedly installed on the end of the arc-shaped sliding column 14 close to the protective rod 9, and a spring 15 is fixedly installed between the end of the arc-shaped sliding column 14 away from the arc-shaped brake rod 16 and the arc-shaped sliding cavity 21. A positioning hole 18 is opened inside the protective rod 9, and the arc-shaped brake rod 16 is fixedly installed between the end of the arc-shaped sliding column 14 away from the arc-shaped brake rod 16 and the arc-shaped sliding cavity 21. The rod 16 slides through the positioning hole 18, and an extension plate 20 slidingly engaged with the arc-shaped sliding cavity 21 is fixedly installed on the outer surface of the arc-shaped sliding column 14, and the extension plate 20 extends to the outside of the rotating ring 8. A dial ring 17 is fixedly installed between several extension plates 20, and the dial ring 17 is slidably sleeved on the outer surface of the rotating ring 8. When the protective rod 9 rises to the top, the arc-shaped brake rod 16 can be embedded in the positioning hole 18 under the push of the spring 15, and the protective rod 9 cannot slide down at this time.

[0033] The trigger mechanism includes a T-shaped ring cavity 29 opened at the top of the AGV conveying device body 1, a T-shaped cylinder 30 is fixedly installed at the bottom of the loading platform 3, and the T-shaped cylinder 30 is placed inside the T-shaped ring cavity 29, there is a gap between the outer surface of the T-shaped cylinder 30 and the inner wall of the T-shaped ring cavity 29, and a plurality of springs 31 equidistantly distributed in a circle are fixedly installed between the large outer diameter of the T-shaped cylinder 30 and the large inner diameter of the T-shaped ring cavity 29, and a micro switch 33 for starting and stopping the driving base 2 is fixedly embedded on the inner side of the T-shaped ring cavity 29 corresponding to the top center of the AGV conveying device body 1, and a conical groove 32 is opened at the bottom of the T-shaped cylinder 30. When the loading platform 3 is offset, the conical groove 32 at the bottom of the T-shaped cylinder 30 can squeeze the micro switch 33, and the operation of the driving base 2 is stopped in time under the action of triggering the micro switch 33.

[0034] The end surface of the protrusion 13 close to the worktable 3 is provided with a round chamfered portion 28, and the end surface of the limiting column 26 away from the sliding plate 24 is provided with an oblique chamfered portion 27. Through the design of the round chamfered portion 28 and the oblique chamfered portion 27, when the rotating ring 8 is subjected to a large rotational force, the protrusion 13 can push the limiting column 26, causing the rotating ring 8 to idle.

[0035] A plurality of friction blocks 19 equidistantly distributed around a circumference are fixedly mounted on the outer surface of the rotating ring 17 . The friction blocks 19 are designed to facilitate the user to rotate the rotating ring 17 .

[0036] The conical groove 32 , the micro switch 33 and the T-shaped cylinder 30 are coaxial, and the bottom diameter of the conical groove 32 is larger than the outer diameter of the micro switch 33 to ensure that the micro switch 33 can be triggered by the conical groove 32 when the T-shaped cylinder 30 deviates in any direction.

[0037] The working principle of preventing the goods transported on the top of the AGV conveying device from being hit is as follows: the user places the goods to be transported on the upper part of the loading platform 3, and the goods are located at the center of the loading platform 3 as much as possible. At this time, the lowest pad 10 is lifted up and moved upward, so that a number of protection rods 9 are continuously extended upward. At this time, the protection rods 9 and the top pad 10 can cover the goods inside, forming protection for the outside of the goods. When the bottom pad 10 moves upward to fit with the bottom of the rotating ring 8, the spring 15 inside the rotating ring 8 can just push the arc brake rod 16 through the arc slide column 14, so that the arc brake rod 16 is engaged with the positioning hole 18. At this time, the protection rod 9 is confined inside the rotating ring 8 and cannot move. At this time, a stable protection structure can be formed for the goods on the upper part of the loading platform 3.

[0038] When the AGV conveying device body 1 is in the process of transportation, when the upwardly extending protective rod 9 is hit by the outside, the force generated by the collision can exert a thrust on the rotating collar 8. Under the action of the impact force, the protrusion 13 can push the limit column 26, so that the rotating collar 8 forms an idle rotation for a moment. At this time, the idling of the entire rotating collar 8 and the protective rod 9 can relieve part of the force received by the collision, so that less force is transmitted to the loading platform 3, thereby preventing the goods on the loading platform 3 from shaking significantly;

[0039] When the stage 3 is subjected to force, the plurality of springs 31 can be deformed through the T-shaped cylinder 30. When the T-shaped cylinder 30 moves, it can squeeze the micro switch 33 through the bottom inclined arc surface of the conical groove 32, thereby triggering the micro switch 33. At this time, the driving base 2 can stop running in time to avoid greater losses caused by continued operation.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article 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, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An AGV conveying device for logistics with an anti-collision function, comprising an AGV conveying device body (1), wherein a driving base (2) for movement is provided at the bottom of the AGV conveying device body (1), characterized in that: A loading platform (3) for carrying goods is installed on the top of the AGV conveying device body (1), and a trigger mechanism is provided between the AGV conveying device body (1) and the loading platform (3); An anti-collision mechanism (4) is used to prevent the goods on the top of the loading platform (3) from being hit. The anti-collision mechanism (4) is installed on the outside of the AGV conveying device body (1) and the loading platform (3), and a rotating mechanism (5) is provided at the connection between the anti-collision mechanism (4) and the loading platform (3); A limiting mechanism (6) for adjusting the state of the anti-collision mechanism (4) and installed between the anti-collision mechanism (4) and the rotating mechanism (5); The rotating mechanism (5) comprises a rotating ring (8) coaxially mounted on the outside of the loading platform (3); a raised ring portion (12) is fixedly mounted on the upper and lower ends of the rotating ring (8) close to the inner side of the rotating ring (8); two symmetrically distributed limiting cover sleeves (11) are fixedly mounted on the upper and lower ends of the loading platform (3) by bolts, and the limiting cover sleeves (11) are rotatably engaged with the raised ring portion (12); a partition portion (22) is provided between the inner wall of the rotating ring (8) and the outer surface of the loading platform (3), and a positioning assembly (7) is provided on the inner side of the partition portion (22); The anti-collision mechanism (4) comprises a plurality of protective rods (9) slidably embedded in the rotating ring (8) and distributed at equal intervals around the circumference, and pads (10) are fixedly installed at both upper and lower ends of the protective rods (9), the protective rods (9) are not in contact with the partition (22), and the lower end horizontal plane of the pads (10) distributed at the bottom of the protective rods (9) is higher than the upper end horizontal plane of the driving base (2); The limiting mechanism (6) comprises a plurality of arc-shaped sliding cavities (21) which are arranged inside the rotating ring (8) and are equidistantly distributed around the circumference, and the number of the arc-shaped sliding cavities (21) is consistent with the number of the protective rods (9), an arc-shaped sliding column (14) is slidably embedded inside the arc-shaped sliding cavity (21), and an arc-shaped braking rod (16) is fixedly installed at one end of the arc-shaped sliding column (14) close to the protective rod (9), and a spring is fixedly installed between one end of the arc-shaped sliding column (14) away from the arc-shaped braking rod (16) and the arc-shaped sliding cavity (21). One (15), a positioning hole (18) is provided inside the protection rod (9), and the arc-shaped brake rod (16) slides through the positioning hole (18), an extension plate (20) is fixedly installed on the outer surface of the arc-shaped slide column (14) and is slidably engaged with the arc-shaped slide cavity (21), and the extension plate (20) extends to the outside of the rotating ring (8), a rotating ring (17) is fixedly installed between a plurality of the extension plates (20), and the rotating ring (17) is slidably sleeved on the outer surface of the rotating ring (8); The trigger mechanism comprises a T-shaped ring cavity (29) opened at the top of the AGV conveying device body (1); a T-shaped cylinder (30) is fixedly installed at the bottom of the loading platform (3), and the T-shaped cylinder (30) is placed inside the T-shaped ring cavity (29); there is a gap between the outer surface of the T-shaped cylinder (30) and the inner wall of the T-shaped ring cavity (29); a plurality of springs (31) are fixedly installed between the large outer diameter of the T-shaped cylinder (30) and the large inner diameter of the T-shaped ring cavity (29) and are equidistantly distributed around the circumference; a micro switch (33) for controlling the start and stop of the driving base (2) is fixedly embedded on the inner side of the T-shaped ring cavity (29) corresponding to the top center of the AGV conveying device body (1); and a conical groove (32) is opened at the bottom of the T-shaped cylinder (30).

2. The AGV conveying device for logistics with anti-collision function according to claim 1 is characterized in that: The positioning assembly (7) comprises protrusions (13) which are fixedly mounted on the inner wall of the rotating ring (8) at equal intervals in a circular array, a plurality of radially distributed straight grooves (23) are opened inside the loading platform (3), and a sliding plate (24) is slidably embedded inside the straight groove (23), a spring 2 (25) is provided at one end of the sliding plate (24) close to the center of the loading platform (3), and a limiting column (26) which is slidably embedded in the partition (22) is fixedly mounted on the other end of the sliding plate (24), and the limiting column (26) is movably embedded in the gap between the plurality of protrusions (13) at one end away from the sliding plate (24).

3. The AGV conveying device for logistics with anti-collision function according to claim 2 is characterized in that: The end surface of the protrusion (13) close to the loading platform (3) is provided with a round chamfered portion (28), and the end surface of the limiting column (26) away from the sliding plate (24) is provided with an oblique chamfered portion (27).

4. The AGV conveying device for logistics with anti-collision function according to claim 1 is characterized in that: A plurality of friction blocks (19) equidistantly distributed around the circumference are fixedly mounted on the outer surface of the rotating ring (17).

5. The AGV conveying device for logistics with anti-collision function according to claim 1 is characterized in that: The conical groove (32), the micro switch (33) and the T-shaped cylinder (30) are coaxial, and the bottom diameter of the conical groove (32) is larger than the outer diameter of the micro switch (33).

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