Device for assisting AGV to pass threshold

Abstract

The invention relates to the technical field of AGVs, and discloses a device for assisting an AGV to pass through a threshold, the device comprises two slope structures and a crowbar, the two slope structures are suitable for being erected on the two sides of the threshold, any slope structure comprises a slope body and two roller assemblies, a hook is arranged at the highest end of the slope body, and the hook is suitable for being erected on the threshold; the two roller assemblies are arranged at the bottom of the slope body, any roller assembly comprises a roller connected with the slope body, and the roller is provided with a working position protruding out of the surface of the bottom of the slope body and a containing position located in the bottom of the slope body. When the AGV needs to cross a doorsill, the two slope structures are placed on the two sides of the doorsill, at the moment, the hook at the highest end of the slope body is hung on the doorsill to fix the slope body, and through a bridge formed by the two slope bodies, the AGV can move on the upper sides of the two slope bodies to cross the doorsill; and two groups of roller assemblies are arranged at the bottom of the slope body, so that the slope body can be conveniently moved.

Description

Technical Field

[0001] The present invention relates to the technical field of AGVs, and in particular to a device for assisting an AGV to pass a threshold. Background Art

[0002] AGV (Automated Guided Vehicle) is one of the main equipment for material handling automation in factories and warehouses. In various fields, many AGVs have been introduced for use in the production process, featuring high efficiency, speed and flexibility.

[0003] The AGV in the existing technology has a wide range of application scenarios. For example, when used in a factory, it is necessary to transfer materials from one workshop to another. During this process, the AGV needs to pass the threshold, and during non-working hours, the door at the threshold needs to be closed, so a detachable mechanism is needed to solve the problem of the AGV passing the threshold. Summary of the invention

[0004] In view of this, the present invention provides a device for assisting an AGV to pass through a threshold, so as to solve the problem that the AGV needs to pass through a threshold.

[0005] In a first aspect, the present invention provides a device for assisting an AGV to pass a threshold, comprising:

[0006] Two slope structures, the two slope structures are suitable for being set up on both sides of the threshold, and any one of the slope structures comprises:

[0007] A ramp body, wherein a hook is provided at the highest end of the ramp body, and the hook is suitable for being placed on the threshold;

[0008] Two groups of roller assemblies are arranged at the bottom of the ramp body. Any of the roller assemblies includes a roller connected to the ramp body. The roller has a working position protruding from the bottom surface of the ramp body and a storage position located in the bottom of the ramp body.

[0009] When the AGV needs to cross the threshold, two ramp structures are placed on both sides of the threshold. At this time, the hook at the highest end of the ramp body is hung on the threshold to fix the ramp body. Through the bridge formed by the two ramp bodies, the AGV can move on the upper side of the two ramp bodies to cross the threshold, and after use, the two ramp bodies can be separated from the threshold. By arranging two sets of roller assemblies at the bottom of the ramp body, when the ramp body needs to be moved to the threshold and overlapped with the threshold, the rollers are moved to the working position. At this time, the rollers protrude from the bottom surface of the ramp body, thereby enabling the convenient movement of the ramp body. After the hook on the ramp body is placed on the threshold to complete the installation of the ramp body, the rollers are moved to the storage position. At this time, the rollers are inside the bottom of the ramp body. Similarly, after the AGV completes the work, the rollers are moved to the working position again.

[0010] In an optional embodiment, a plurality of staggered ribs are fixed to the bottom of the ramp body, and the roller assembly is arranged in a grid formed by the staggered ribs.

[0011] In an optional embodiment, the roller assembly further includes:

[0012] The roller bracket is U-shaped, and the roller is rotatably arranged inside the roller bracket;

[0013] A connecting shaft passes through the roller bracket and is fixed to the roller bracket, and both ends of the connecting shaft are connected to the rib plate. The connecting shaft is configured to rotate relative to the rib plate under the action of an external force to drive the roller to reach the working position.

[0014] In an optional embodiment, a through hole is provided on the ramp body at the location where the roller assembly is installed, and the through hole is suitable for inserting a wrench to connect the connecting shaft and drive the connecting shaft to rotate.

[0015] In an optional embodiment, the roller assembly further includes a limiting shaft, wherein the limiting shaft is fixed to the rib plate, and when the roller is in the working position, the limiting shaft abuts against the roller bracket.

[0016] In an optional embodiment, the two roller assemblies are arranged on the side of the ramp body with the highest height.

[0017] In an optional embodiment, the hook protrudes from the end of the slope body, and the hooks on the slope bodies in the two slope structures are spliced ​​together to cover the upper side of the door sill.

[0018] In an optional embodiment, the device for assisting the AGV to pass the threshold further includes a crowbar;

[0019] When the roller is in the working position, the crowbar is connected to the ramp body and drives the ramp body to the threshold.

[0020] In an optional embodiment, a hanging shaft through hole is provided on the ramp body at a side away from the hook, and a crowbar hanging shaft suitable for being inserted into the hanging shaft through hole is provided at the end of the crowbar.

[0021] In an optional embodiment, the crowbar further includes a crowbar rod, a crowbar roller connected to the crowbar rod, and a support plate connected to the crowbar roller, and the crowbar hanging shaft is fixed on the support plate.

[0022] The device for assisting AGV to pass the threshold provided by the present invention has the following advantages:

[0023] The device for assisting AGV to pass the threshold provided by the present invention includes two slope structures, such as Figure 1 As shown, the two slope structures are suitable for being set up on both sides of the threshold, and any slope structure includes a slope body and two groups of roller assemblies. A hook is provided at the highest end of the slope body, and the hook is suitable for being set up on the threshold; the two groups of roller assemblies are arranged at the bottom of the slope body, and any roller assembly includes a roller connected to the slope body, and the roller has a working position protruding from the bottom surface of the slope body and a storage position located inside the bottom of the slope body.

[0024] This structure is used to assist AGV to cross the threshold. When the AGV needs to cross the threshold, two ramp structures are placed on both sides of the threshold. At this time, the hook at the highest end of the ramp body is hung on the threshold to fix the ramp body. Through the bridge formed by the two ramp bodies, the AGV can move on the upper side of the two ramp bodies to cross the threshold, and after use, the two ramp bodies can be separated from the threshold. By arranging two sets of roller assemblies at the bottom of the ramp body, when the ramp body needs to be moved to the threshold and overlapped with the threshold, the rollers are moved to the working position. At this time, the rollers protrude from the bottom surface of the ramp body, thereby enabling the convenient movement of the ramp body. After the hook on the ramp body is placed on the threshold to complete the installation of the ramp body, the rollers are moved to the storage position, and the rollers are at the bottom of the ramp body. Similarly, after the AGV completes the work, the rollers are moved to the working position again. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic structural view of a device for assisting an AGV to pass a threshold provided in an embodiment of the present invention;

[0027] Figure 2 A schematic structural view of a ramp body provided in an embodiment of the present invention;

[0028] Figure 3 for Figure 2 A magnified view of the structure at the center circle A;

[0029] Figure 4 It is a schematic structural view of a crowbar provided in an embodiment of the present invention.

[0030] Description of reference numerals:

[0031] 1-Threshold;

[0032] 2- ramp structure; 21- ramp body; 22- roller assembly; 221- roller; 222- roller bracket; 223- connecting shaft; 224- limiting shaft; 23- hook;

[0033] 3-crowbar; 31-crowbar rod; 32-crowbar roller; 33-support plate; 34-crowbar hanging shaft. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0035] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] Example

[0037] This embodiment provides a device for assisting an AGV to pass a threshold, including two ramp structures 2, such as Figure 1 As shown, the two slope structures 2 are suitable for being set up on both sides of the threshold 1, and any slope structure 2 includes a slope body 21 and two groups of roller assemblies 22. The bottom of the slope body 21 is a plane, and the upper surface of the slope body 21 is sloped, so as to form a slope between the ground and the threshold 1 for the AGV to travel. A hook 23 is provided at the highest end of the slope body 21, and the hook 23 is suitable for being set up on the threshold 1; the two groups of roller assemblies 22 are arranged at the bottom of the slope body 21, and any roller assembly 22 includes a roller 221 connected to the slope body 21, and the roller 221 has a working position protruding from the bottom surface of the slope body 21 and a storage position located in the bottom of the slope body 21.

[0038] When the AGV needs to cross threshold 1, Figure 1As shown, two ramp structures 2 are placed on both sides of the threshold 1. At this time, the hook 23 at the highest end of the ramp body 21 is hung on the threshold 1 to fix the ramp body 21. Through the bridge formed by the two ramp bodies 21, the AGV can move on the upper side of the two ramp bodies 21 to cross the threshold 1, and after use, the two ramp bodies 21 can be separated from the threshold 1. By arranging two groups of roller assemblies 22 at the bottom of the ramp body 21, when it is necessary to move the ramp body 21 to the threshold 1 and overlap with the threshold 1, the roller 221 is moved to the working position, and the roller 221 protrudes from the bottom surface of the ramp body 21, so as to realize the convenient movement of the ramp body 21. After the hook 23 on the ramp body 21 is placed on the threshold 1 to complete the installation of the ramp body 21, the roller 221 is moved to the storage position, and the roller 221 is at the bottom of the ramp body 21. Similarly, after the AGV completes its work, the roller 221 is moved to the working position again to remove the ramp body 21 .

[0039] In this embodiment, the roller 221 is a universal wheel, so that the ramp body 21 can move more conveniently.

[0040] like Figure 2 As shown, a plurality of staggered ribs are fixed to the bottom of the ramp body 21, and the roller assembly 22 is arranged in a grid formed by the staggered ribs.

[0041] Specifically, a plurality of ribs are fixed horizontally and vertically on the bottom surface of the ramp body 21. The ribs can be arranged to strengthen the strength of the ramp body 21. The ribs are staggered to form a plurality of squares. The roller assembly 22 is connected to the ribs to be fixed in a square. The ramp body 21 and the ribs form a whole. In the storage position, the roller 221 is stored in the square. In the working position, the roller 221 protrudes from the square to contact the ground.

[0042] In this embodiment, the roller assembly 22 further includes a roller bracket 222, a connecting shaft 223 and a limiting shaft 224. Figure 3 As shown, the roller bracket 222 is U-shaped, and the roller 221 is rotatably arranged inside the roller bracket 222; the connecting shaft 223 passes through the roller bracket 222 and is fixed to the roller bracket 222, and both ends of the connecting shaft 223 are connected to the rib plate. The connecting shaft 223 is configured to rotate relative to the rib plate under the action of external force to drive the roller 221 to reach the working position.

[0043] Among them, a rotating shaft is passed through the middle of the roller 221 to facilitate the rotation of the roller 221. Both ends of the rotating shaft are fixed to the roller bracket 222 to fix the roller 221. The connecting shaft 223 adopts a bolt shaft, and both ends thereof pass through the rib plate and are tightened by nuts, thereby ensuring that the roller 221 can be in the storage position without external force. When the connecting shaft 223 is twisted by external force, the connecting shaft 223 can be rotated to the working position.

[0044] like Figure 3 As shown, a through hole is provided on the ramp body 21 at the location where the roller assembly 22 is installed, and a wrench is inserted into the through hole to connect the connecting shaft 223 and drive the connecting shaft 223 to rotate. When the connecting shaft 223 needs to be rotated, the wrench is inserted into the through hole so that the wrench can be fixed to the connecting shaft 223, and then the connecting shaft 223 is driven to rotate by rotating the wrench, thereby realizing the switching of the roller 221 between the working position and the storage position.

[0045] Specifically, in order to facilitate the fixation of the wrench and the connecting shaft 223, as Figure 3 As shown, a nut adapted to the wrench is fixed on the connecting shaft 223 .

[0046] like Figure 3 As shown, the limiting shaft 224 is fixed to the rib plate, and when the roller 221 is in the working position, the limiting shaft 224 abuts against the roller bracket 222, thereby limiting the roller bracket 222 to prevent the roller 221 from retracting into the ramp body 21 due to the pressure of the ramp body 21 and the AGV. When the roller 221 is in the storage position, the limiting shaft 224 and the roller bracket 222 are located on opposite sides of the connecting shaft 223, and the roller bracket 222 can be rotated to the side of the limiting shaft 224 when in use.

[0047] In this embodiment, two roller assemblies 22 are disposed on the highest side of the ramp body 21 . When the ramp body 21 needs to be moved, the lowest side of the ramp body 21 can be lifted using the roller assemblies 22 as fulcrums to push the ramp body 21 to move.

[0048] In this embodiment, the hook 23 protrudes from the end of the slope body 21 , and the hooks 23 on the slope bodies 21 in the two slope structures 2 are spliced ​​together to cover the upper side of the door sill 1 .

[0049] like Figure 1 and Figure 2 As shown, the width of the hook 23 is half of the width of the ramp body 21. When the two ramp bodies 21 are fixed on the threshold 1 through the hooks 23, the two hooks 23 can be spliced ​​together to achieve coverage of the upper surface of the threshold 1. The two adjacent ramp structures 2 are buckled with each other to avoid displacement and gaps that affect the passage of the AGV.

[0050] In this embodiment, the device for assisting the AGV to pass the threshold 1 further includes a crowbar 3 . When the roller 221 is in the working position, the crowbar 3 is connected to the ramp body 21 and drives the ramp body 21 to the threshold 1 .

[0051] Specifically, Figure 4 As shown, the crowbar 3 includes a crowbar rod 31, a crowbar roller 32, a support plate 33 and a crowbar hanging shaft 34. The bottom end of the crowbar rod 31 is fixed to the crowbar roller 32, the crowbar roller 32 is fixed to the support plate 33, and the crowbar hanging shaft 34 is fixed to the upper surface of the support plate 33. When in use, the crowbar roller 32 is pushed by the crowbar rod 31 to pass the crowbar hanging shaft 34 into the hanging shaft through hole on the ramp body 21, thereby connecting with the ramp body 21 and pushing the ramp body 21 to move. Specifically, the hanging shaft through hole is set on the ramp body 21 away from the hook 23.

[0052] The device provided in this embodiment for assisting an AGV to pass through a threshold 1 is used as follows:

[0053] First, insert the wrench into the through hole on the ramp body 21 until it is fixed with the connecting shaft 223, then rotate the wrench to drive the connecting shaft 223 to rotate, and then rotate the roller 221 to the working position and withdraw the wrench, at which time the limit shaft 224 abuts against the roller bracket 222; then insert the crowbar hanging shaft 34 on the crowbar 3 into the inside of the hanging shaft through hole on the ramp body 21, lift the end of the ramp body 21, push the ramp body 21 to move to the threshold 1 and stop by the crowbar 3, put the hook 23 on the threshold 1 and withdraw the crowbar 3, insert the wrench into the through hole on the ramp body 21 again until it is fixed with the connecting shaft 223, and then rotate the wrench to drive the connecting shaft 223 to rotate, and then rotate the roller 221 to the storage position and withdraw the wrench. Repeat this step to fix the ramp structure 2 on the other side of the threshold 1.

[0054] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A device for assisting AGV to pass a threshold, characterized in that: include: Two slope structures (2), the two slope structures (2) are suitable for being set up on both sides of the threshold (1), and any one of the slope structures (2) comprises: A ramp body (21), wherein a hook (23) is provided at the highest end of the ramp body (21), and the hook (23) is suitable for being mounted on the threshold (1); Two groups of roller assemblies (22) are arranged at the bottom of the ramp body (21), and any one of the roller assemblies (22) comprises a roller (221) connected to the ramp body (21), and the roller (221) has a working position protruding from the bottom surface of the ramp body (21) and a storage position located inside the bottom of the ramp body (21).

2. The device for assisting AGV to pass the threshold according to claim 1, characterized in that: A plurality of staggered ribs are fixed to the bottom of the ramp body (21), and the roller assembly (22) is arranged in a grid formed by the staggered ribs.

3. The device for assisting AGV to pass the threshold according to claim 2, characterized in that: The roller assembly (22) further comprises: The roller bracket (222) is U-shaped, and the roller (221) is rotatably arranged inside the roller bracket (222); A connecting shaft (223) passes through the roller bracket (222) and is fixed to the roller bracket (222). Both ends of the connecting shaft (223) are connected to the rib plate. The connecting shaft (223) is configured to rotate relative to the rib plate under the action of an external force to drive the roller (221) to reach the working position.

4. The device for assisting AGV to pass the threshold according to claim 3, characterized in that: A through hole is provided on the ramp body (21) at the location where the roller assembly (22) is installed, and a wrench is inserted into the through hole to connect the connecting shaft (223) and drive the connecting shaft (223) to rotate.

5. The device for assisting AGV to pass the threshold according to claim 3, characterized in that: The roller assembly (22) further comprises a limiting shaft (224), wherein the limiting shaft (224) is fixed to the rib plate, and when the roller (221) is in the working position, the limiting shaft (224) abuts against the roller bracket (222).

6. The device for assisting AGV to pass the threshold according to any one of claims 1 to 5, characterized in that: The two roller assemblies (22) are arranged on the highest side of the ramp body (21).

7. The device for assisting AGV to pass the threshold according to any one of claims 1 to 5, characterized in that: The hook (23) protrudes from the end of the slope body (21), and the hooks (23) on the slope bodies (21) in the two slope structures (2) are spliced ​​together to cover the upper side of the door sill (1).

8. The device for assisting AGV to pass the threshold according to any one of claims 1 to 7, characterized in that: Also includes a pry bar (3); When the roller (221) is in the working position, the crowbar (3) is connected to the ramp body (21) and drives the ramp body (21) to the threshold (1).

9. The device for assisting AGV to pass through a threshold according to claim 8, characterized in that: A hanging shaft through hole is provided on the slope body (21) at a side away from the hook (23), and a crowbar hanging shaft (34) suitable for being inserted into the hanging shaft through hole is provided at the end of the crowbar (3).

10. The device for assisting AGV to pass through a threshold according to claim 9, characterized in that: The crowbar (3) further comprises a crowbar rod (31), a crowbar roller (32) connected to the crowbar rod (31), and a support plate (33) connected to the crowbar roller (32), and the crowbar hanging shaft (34) is fixed on the support plate (33).

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