Towing structure of a material car and material car thereof

Abstract

The utility model relates to a material car tow structure's technical field, put forward a kind of tow structure of material car and its material car, the tow structure of material car includes with the tow connecting piece of cooperation of plug-in tow piece, the tow structure further includes fixed base, and the fixed base is movably connected with tow connecting piece;Tow connecting piece is equipped with the rotating shaft of rotation connection with fixed base and the connecting shaft of cooperation with plug-in tow piece, plug-in tow piece is equipped with the clamping groove;When plug-in tow piece is inserted to the connecting shaft of tow connecting piece and the clamping groove is engaged with fixed base, to form tow connection. The utility model is connected by the cooperation of fixed base, tow connecting piece and plug-in tow piece. Tow connecting piece is rotatably connected with fixed base by rotating shaft, when plug-in tow piece is inserted, connecting shaft and clamping groove are directly engaged to form tow connection, without additional power drive component, structure simplifies, reduce manufacturing cost. Meanwhile, the connection mode of plug-in engagement is convenient to operate.

Description

Technical Field

[0001] This utility model relates to the technical field of material vehicle traction structure, specifically to a material vehicle traction structure and the material vehicle thereof. Background Technology

[0002] Currently, in automated logistics systems, AGVs (Automated Guided Vehicles) pulling multiple material carts in series has become a common way to improve transportation efficiency. Existing traction structures mostly use mechanical hooks and rods to connect the vehicles. For example, Chinese patent CN206050780U discloses an AGV pulling a material cart, which uses a hook to push the rod to rotate and relies on a pneumatic anti-rotation mechanism to achieve a limit stop, thus realizing the traction connection. Although this structure can achieve automatic anti-rotation and avoid manual bending operation, it is complex, relies on power components such as cylinders, gears, and racks, and has high manufacturing costs. Utility Model Content

[0003] This utility model proposes a traction structure for a material cart and the material cart thereof. The traction structure achieves connection through the cooperation of a fixed base, a traction connector, and a plug-in traction component. The traction connector is rotatably connected to the fixed base via a rotating shaft. When the plug-in traction component is inserted, the connecting shaft and the clip directly engage to form a traction connection, eliminating the need for additional power drive components, simplifying the structure and reducing manufacturing costs. Simultaneously, the plug-in connection method is convenient to operate, allowing for quick traction connection and avoiding the tedious manual bending operation, thus improving work efficiency. A traction structure for a material cart designed for this purpose includes a traction connector that mates with a plug-in traction component, and the traction structure further includes: Fixed seat, which is movably connected to the traction connector; The traction connector is provided with a rotating shaft that is rotatably connected to the fixed seat and a connecting shaft that cooperates with the plug-in traction component. The plug-in traction component is provided with a slot. When the plug-in traction member is inserted into the fixed seat and the connecting shaft of the traction connector engages with the slot, a traction connection is formed.

[0004] The rotating shaft is provided with a torsion spring. The torsion spring has a first pressure foot for abutting against the connecting shaft and a second pressure foot for abutting against the inner side of the fixed seat, so that the traction connector can rotate elastically on the fixed seat. When the plug-in traction member is separated from the traction connector, the traction connector is elastically reset by the torsion spring.

[0005] The top of the fixed seat is provided with a bushing that is connected to the rotating shaft. The fixed seat has a cavity. The top and bottom of the fixed seat are respectively provided with a top limiting groove and a bottom limiting groove that communicate with the cavity. The connecting shaft passes through the cavity from the top limiting groove and is inserted into the bottom limiting groove. When the traction connecting piece rotates, the connecting shaft is limited to move on the top limiting groove and the bottom limiting groove.

[0006] The end of the fixed base is provided with an insertion opening for inserting a traction component, and the insertion opening is connected to the cavity of the fixed base.

[0007] The top of the connecting shaft of the traction connector is provided with a touch part for human foot operation. The touch part extends outward from the fixed seat and is inclined on the top of the connecting shaft.

[0008] A material cart includes a frame body, on which the aforementioned traction structure of the material cart is provided. A fixed seat and a traction connector that is flexibly rotatably mounted on the fixed seat are provided at the lower part of one end of the frame body. A rotatable plug-in traction connector is provided at the lower part of the other end of the frame body.

[0009] The main body of the frame includes a base plate and four support rods set on the base plate. A connecting rod is provided between two adjacent support rods, and the four support rods form a space for placing workpieces. The main body of the vehicle frame is equipped with dustproof curtains on all four sides and top to prevent foreign objects from entering the containment space.

[0010] The main body of the vehicle frame has a positioning component for positioning and placing workpieces within its accommodating space. The positioning component includes a fixing component and a positioning component that is detachably mounted on the fixing component. The positioning component has a mounting groove for detaching and assembling the positioning component. The upper part and the side of the mounting groove are open, and the bottom of the mounting groove is closed. The positioning element is made of a soft material and elastically abuts against the inner side of the mounting groove. The positioning element is provided with a number of positioning grooves for positioning the workpiece. The main body of the vehicle frame has a vertical rod that is fixedly connected to the fastener within its accommodating space.

[0011] The upper part of the four support rods extends upward toward the top of the frame body accommodating space to form a stacked space for accommodating the bottom of another frame body. The bottom of the frame body is provided with a stacked connector so that the stacked connector of the frame body is installed on the upper part of the four support rods of the other frame body. The bottom of the frame body is also equipped with casters, and the stacked connecting parts are suspended on the bottom of the frame body through the casters.

[0012] The bottom of the frame body is provided with a connecting frame for cooperating with a forklift. The connecting frame has a insertion cavity for inserting into the forklift forks, and the connecting frame has a folded edge fixed to the bottom of the frame body.

[0013] The beneficial technical effects of this utility model are as follows: This traction structure achieves connection through the cooperation of a fixed base, a traction connector, and a plug-in traction component. The traction connector is rotatably connected to the fixed base via a rotating shaft. When the plug-in traction component is inserted, the connecting shaft and the slot directly engage to form a traction connection, eliminating the need for additional power drive components, simplifying the structure and reducing manufacturing costs. Furthermore, the plug-in connection method is convenient to operate, allowing for quick traction connection and avoiding the tedious manual bending operation, thus improving work efficiency. Attached Figure Description

[0014] Figure 1 This is a cross-sectional structural diagram of the installation of the traction connector and the fixed seat according to an embodiment of the present invention.

[0015] Figure 2 This is a cross-sectional structural diagram of the traction connector and the plug-in traction component in one embodiment of the present invention.

[0016] Figure 3 This is a three-dimensional structural diagram of the installation of the traction connector and the fixed base according to an embodiment of the present invention.

[0017] Figure 4 This is a three-dimensional structural diagram of a torsion spring according to an embodiment of the present invention.

[0018] Figure 5 This is a three-dimensional structural diagram of the connection between two material carts in one embodiment of the present invention.

[0019] Figure 6 This is a three-dimensional structural diagram showing the disassembly and assembly of a positioning component according to an embodiment of the present invention.

[0020] Figure 7 This is a schematic diagram of a three-dimensional structure of two material carts stacked on top of each other, according to an embodiment of the present invention. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0022] See Figures 1-7 A traction structure for a material cart includes a traction connector 2 that mates with a plug-in traction component 1, and the traction structure further includes: Fixed seat 3, which is movably connected to traction connector 2; The traction connector 2 is provided with a rotating shaft 201 that is rotatably connected to the fixed base 3 and a connecting shaft 202 that cooperates with the plug-in traction component 1. The plug-in traction component 1 is provided with a slot 101. When the plug-in traction member 1 is inserted into the fixed seat 3 and the connecting shaft 202 of the traction connector 2 engages with the slot 101, a traction connection is formed.

[0023] This traction structure achieves connection through the cooperation of the fixed base 3, the traction connector 2, and the plug-in traction component 1. The traction connector 2 is rotatably connected to the fixed base 3 via a rotating shaft 201. When the plug-in traction component 1 is inserted, the connecting shaft 202 and the slot 101 directly engage to form a traction connection, eliminating the need for additional power drive components, simplifying the structure and reducing manufacturing costs. Furthermore, the plug-in connection method is convenient to operate, allowing for quick traction connection and avoiding the tedious manual bending operation, thus improving work efficiency. The rotating shaft 201 is provided with a torsion spring 4. The torsion spring 4 is provided with a first pressure foot 401 for abutting against the connecting shaft 202 and a second pressure foot 402 for abutting against the inner side of the fixed seat 3, so that the traction connector 2 can be elastically rotated on the fixed seat 3. When the plug-in traction member 1 is separated from the traction connector 2, the traction connector 2 is elastically reset by the torsion spring 4.

[0024] The torsion spring 4 on the rotating shaft 201 abuts against the connecting shaft 202 via the first pressure foot 401 and the second pressure foot 402 abuts against the inner side of the fixed seat 3, causing the traction connector 2 to rotate elastically. When the traction connector 1 is separated from the traction connector 2, the torsion spring 4 can drive the traction connector 2 to automatically and elastically reset, eliminating the need for manual adjustment of the position of the traction connector 2, facilitating the next insertion and connection, and reducing manual operation steps.

[0025] The top of the fixed base 3 is provided with a bushing 301 connected to the rotating shaft 201. The fixed base 3 has a cavity. The top and bottom of the fixed base 3 are respectively provided with a top limiting groove 302 and a bottom limiting groove 303 that communicate with the cavity. The connecting shaft 202 passes through the cavity from the top limiting groove 302 and is inserted into the bottom limiting groove 303. When the traction connecting member 2 rotates, the connecting shaft 202 is limited to move on the top limiting groove 302 and the bottom limiting groove 303.

[0026] The bushing 301 of the fixed seat 3 provides stable support for the rotating shaft 201. Furthermore, the rotating shaft 201 can be equipped with a bearing to ensure smooth rotation of the traction connector 2. The cavity fits with the top limiting groove 302 and the bottom limiting groove 303 to form a bidirectional limiting on the connecting shaft 202. When the traction connector 2 rotates, the connecting shaft 202 can only move within the range of the top limiting groove 302 and the bottom limiting groove 303. The fixed base 3 has an insertion opening 304 at its end for inserting and connecting the traction member 1, and the insertion opening 304 connects to the cavity of the fixed base 3.

[0027] The top of the connecting shaft 202 of the traction connector 2 is provided with a touch part 203 for human foot operation. The touch part 203 extends outward from the fixed seat 3 and is inclined on the top of the connecting shaft 202.

[0028] The contact part 203 at the top of the connecting shaft 202 extends outward at an angle to the fixed base 3, allowing the operator to step on it for operation. When the traction connection needs to be separated, the operator does not need to bend over; simply stepping on the contact part 203 with their foot will rotate the connecting shaft 202, causing it to disengage from the slot 101. This further reduces the intensity of manual operation and optimizes the user experience, making it particularly suitable for scenarios where operators frequently load and unload goods in logistics operations.

[0029] When a traction connection is required, the operator does not need to bend over. He can simply step on the touch part 203 with his foot to drive the connecting shaft 202 to rotate. Then, after the insertion traction component 1 is inserted, the insertion traction component 1 is supported on the inner bottom wall of the fixed seat 3, and the traction connection component 2 is reset to complete the fastening.

[0030] A material cart includes a frame body 5, on which the aforementioned traction structure of the material cart is provided. A fixed seat 3 and a traction connector 2 flexibly rotatably mounted on the fixed seat 3 are provided at the lower part of one end of the frame body 5. A rotatable plug-in traction connector 1 is provided at the lower part of the other end of the frame body 5.

[0031] The material cart integrates the aforementioned traction structure. The main frame 5 has a fixed base 3, a traction connector 2, and a plug-in traction component 1 at each end, facilitating the connection of multiple material carts in series via the traction structure. The simplified design of the traction structure reduces the overall manufacturing cost of the material cart, and its quick connection and disassembly characteristics meet the needs of AGV-tractioned multi-car operation, improving the continuity and efficiency of logistics transportation and enhancing the practicality and adaptability of the material cart. The frame body 5 includes a base plate 501 and four support rods 502 disposed on the base plate 501. A connecting rod 503 is provided between two adjacent support rods 502, and a space for placing workpieces is formed between the four support rods 502. The frame body 5 is provided with dust curtains on all four sides and top to prevent foreign objects from entering the containment space. The dust curtains are fixed to the pole with screws. There are two dust curtains on one side of the frame body 5. The two dust curtains can be lifted to open and close the containment space.

[0032] The base plate 501, support rod 502, and connecting rod 503 of the frame body 5 form a stable storage space, which can securely hold the workpiece. The dustproof curtains on the sides and top can effectively block external dust and debris from entering the storage space, preventing the workpiece from being contaminated or damaged by collisions with foreign objects, and ensuring the quality of workpiece storage. When the fixing seat 3 is located on the lower outer side of the dust curtain, the dust curtain does not need to have an opening to avoid the contact part 203 at the top of the connecting shaft 202. When the fixing seat 3 is located on the lower inner side of the dust curtain, the dust curtain needs to have an opening to avoid the contact part 203 extending outside the dust curtain.

[0033] The frame body 5 has a positioning component 6 for positioning and placing workpieces in its accommodating space. The positioning component 6 includes a fixing component 601 and a positioning component 602 that is detachably installed on the fixing component 601. The positioning component 602 has a mounting groove 603 for detaching and installing the positioning component 602. The upper part and the side of the mounting groove 603 are open, and the bottom of the mounting groove 603 is closed. The positioning element 602 is made of soft material and elastically abuts against the inner side of the mounting groove 603. The positioning element 602 is provided with a plurality of positioning grooves 604 for positioning the workpiece. The frame body 5 has a vertical rod 504 fixedly connected to the fastener 601 within its accommodating space.

[0034] The positioning component 6 within the accommodating space can precisely position the workpiece, and the fixing component 601, in conjunction with the vertical rod 504, ensures the stable installation of the positioning component 6. The positioning component 602, made of flexible material, elastically abuts against the mounting groove 603, achieving an interference fit and preventing the positioning component 602 from moving freely within the mounting groove 603. The design of the upper and side openings of the mounting groove 603 facilitates the quick disassembly and replacement of the positioning component 602, adapting to the positioning requirements of different workpieces.

[0035] The upper part of the four support rods 502 extends upward toward the top of the accommodating space of the frame body 5 to form a stacked space for accommodating the bottom of another frame body 5. The bottom of the frame body 5 is provided with a stacked connector 505 so that the stacked connector 505 of the frame body 5 is installed on the upper part of the four support rods 502 of the other frame body 5. The upper part of the four support rods 502 is inserted into the stacked connector 505, and the insertion depth is relatively deep, so the upper frame body 5 is not easy to fall off.

[0036] The stacking space formed by the upper extension of the support rod 502, together with the stacking connector 505 at the bottom of the frame body 5, allows two material carts to be stacked, significantly saving storage space, especially suitable for warehouse scenarios with limited space. The stacking connector 505 is suspended by casters 506, which does not affect the movement function of the casters 506 of the lower material cart, while ensuring the stacking connection. The bottom of the frame body 5 is also provided with casters 506, and the stacked connector 505 is suspended on the bottom of the frame body 5 through the casters 506.

[0037] The bottom of the frame body 5 is provided with a connecting frame 507 for cooperating with a forklift. The connecting frame 507 is provided with a insertion cavity 508 for inserting into the forklift forks. The connecting frame 507 is provided with a folded edge 509 fixed to the bottom of the frame body 5.

[0038] The connecting frame 507 at the bottom of the chassis body 5 is securely fixed to the bottom via a folded edge 509. Its insertion cavity 508 allows for direct insertion by forklift forks, enabling the material cart to be easily handled and transferred by forklifts in addition to being compatible with AGV traction. This expands the material cart's handling methods and enhances its adaptability in different logistics scenarios. The folded edge 509 strengthens the connection between the connecting frame 507 and the chassis body 5, ensuring structural stability during forklift transport.

[0039] The two main components in this embodiment are fixedly connected by welding or screws. These are technical means that are easy for those skilled in the art to think of, and the relevant connection and fixing structures will not be described in detail here.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A traction structure for a material cart, comprising a traction connector (2) that mates with a plug-in traction member (1), characterized in that, The traction structure also includes: Fixed seat (3), which is movably connected to traction connector (2); The traction connector (2) is provided with a rotating shaft (201) that is rotatably connected to the fixed seat (3) and a connecting shaft (202) that cooperates with the plug-in traction component (1). The plug-in traction component (1) is provided with a slot (101). When the insertion traction member (1) is inserted into the fixed seat (3) and the connecting shaft (202) of the traction connector (2) engages with the slot (101), a traction connection is formed.

2. The traction structure of the material cart according to claim 1, characterized in that: The rotating shaft (201) is provided with a torsion spring (4). The torsion spring (4) is provided with a first pressure foot (401) for abutting against the connecting shaft (202) and a second pressure foot (402) for abutting against the inner side of the fixed seat (3), so that the traction connector (2) can be elastically rotated on the fixed seat (3). When the plug-in traction member (1) is separated from the traction connector (2), the traction connector (2) is elastically reset by the torsion spring (4).

3. The traction structure of the material cart according to claim 1, characterized in that: The top of the fixed seat (3) is provided with a bushing (301) connected to the rotating shaft (201). The fixed seat (3) has a cavity. The top and bottom of the fixed seat (3) are respectively provided with a top limiting groove (302) and a bottom limiting groove (303) that communicate with the cavity. The connecting shaft (202) passes through the cavity from the top limiting groove (302) and is inserted into the bottom limiting groove (303). When the traction connector (2) rotates, the connecting shaft (202) is limited to move on the top limiting groove (302) and the bottom limiting groove (303).

4. The traction structure of the material cart according to claim 3, characterized in that: The fixed base (3) has an insertion opening (304) at its end for inserting the traction member (1), and the insertion opening (304) is connected to the cavity of the fixed base (3).

5. The traction structure of the material cart according to claim 1, characterized in that: The top of the connecting shaft (202) of the traction connector (2) is provided with a touch part (203) for human foot to step on. The touch part (203) extends outward from the fixed seat (3) and is inclined on the top of the connecting shaft (202).

6. A material cart, comprising a frame body (5), characterized in that: The frame body (5) is provided with a traction structure for the material car according to any one of claims 1-5. A fixed seat (3) and a traction connector (2) rotatably mounted on the fixed seat (3) are provided at the lower part of one end of the frame body (5). A rotatable plug-in traction connector (1) is provided at the lower part of the other end of the frame body (5).

7. The material cart according to claim 6, characterized in that: The frame body (5) includes a base plate (501) and four support rods (502) set on the base plate (501). A connecting rod (503) is provided between two adjacent support rods (502), and a space for placing workpieces is formed between the four support rods (502). The frame body (5) is provided with dustproof curtains on all four sides and top to prevent foreign objects from entering the containment space.

8. The material cart according to claim 7, characterized in that: The main body of the frame (5) is provided with a positioning component (6) for positioning and placing workpieces in the accommodating space. The positioning component (6) includes a fixing part (601) and a positioning part (602) that is detachably installed on the fixing part (601). The positioning part (602) is provided with a mounting groove (603) for detaching and installing the positioning part (602). The upper part and the side of the mounting groove (603) are open, and the bottom of the mounting groove (603) is closed. The positioning element (602) is made of soft material and elastically abuts against the inner side of the mounting groove (603). The positioning element (602) is provided with a plurality of positioning grooves (604) for positioning the workpiece. The frame body (5) has a vertical rod (504) fixedly connected to the fixing member (601) in the accommodating space.

9. The material cart according to claim 7, characterized in that: The upper part of the four support rods (502) extends upward toward the top of the accommodating space of the frame body (5) to form a stacked space for accommodating the bottom of another frame body (5). The bottom of the frame body (5) is provided with a stacked connector (505) so that the stacked connector (505) of the frame body (5) is installed on the upper part of the four support rods (502) of the other frame body (5). The bottom of the frame body (5) is also provided with casters (506), and the stacked connectors (505) are suspended on the bottom of the frame body (5) through the casters (506).

10. The material cart according to claim 6, characterized in that: The bottom of the frame body (5) is provided with a connecting frame (507) for cooperating with a forklift. The connecting frame (507) is provided with a plug-in cavity (508) for inserting the forklift forks. The connecting frame (507) is provided with a folded edge (509) fixed to the bottom of the frame body (5).

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