AGV tractor

Abstract

The utility model relates to an AGV tractor which comprises a bearing frame, a chassis, a traction device and a traction mechanism, and the bearing frame and the chassis are both movable. The two traction devices and the two traction mechanisms are correspondingly connected in a matched mode; the two traction devices are arranged on the bearing frame in the length direction, and the two traction mechanisms are arranged on the chassis in the length direction; the traction mechanism comprises a traction shaft capable of moving vertically, the traction device comprises a traction plate and a blocking piece, the traction plate is provided with a traction hole, the side wall of the traction hole is provided with a notch communicated with the outside, and the blocking piece is arranged at the notch; the blocking piece has a first state for closing the notch and a second state for opening the notch; in the process that the traction shaft enters the traction hole from the outside through the notch in the horizontal direction, the blocking piece is switched from the first state to the second state. The traction shaft is located in the traction hole, and the blocking piece is switched from the second state to the first state. When the chassis and the bearing frame of the tractor are assembled in a traction mode, time is shorter, and time for carrying goods is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of AGV vehicles, in particular to an AGV tractor. Background Art

[0002] The existing AGV tractor includes a movable carrying frame and a chassis. The traction shaft of the chassis can be inserted into the traction hole of the traction chassis connected to the carrying frame. The chassis will drive the traction chassis and then drive the carrying frame through the traction shaft. However, during the traction cooperation, that is, when the traction shaft is inserted into the traction hole, after the chassis stops, it is necessary to wait for the traction shaft to rise until the upper part of the traction shaft completely passes through the traction hole before the chassis can be started for traction operation, which wastes time. Content of the Utility Model

[0003] The utility model provides an AGV tractor, which takes less time during the traction assembly of the chassis and the carrying frame, saving the time for the whole tractor to carry goods.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] An AGV tractor includes a carrying frame, a chassis, a traction device and a traction mechanism. The above-mentioned carrying frame and the above-mentioned chassis are both movable;

[0006] The above-mentioned traction device and the above-mentioned traction mechanism are both provided in two groups and are correspondingly connected in cooperation;

[0007] The two groups of the above-mentioned traction devices are arranged on the above-mentioned carrying frame along its length direction, and the two groups of the above-mentioned traction mechanisms are arranged on the above-mentioned chassis along its length direction;

[0008] The above-mentioned traction mechanism includes a traction shaft that can move vertically. The above-mentioned traction device includes a horizontally arranged traction plate and a blocking member. The above-mentioned traction plate is provided with a traction hole, and a notch communicating with the outside is provided on the side wall of the above-mentioned traction hole. The above-mentioned blocking member is arranged at the above-mentioned notch;

[0009] The above-mentioned blocking member has a first state of closing the above-mentioned notch and a second state of opening the above-mentioned notch;

[0010] During the process of the above-mentioned traction shaft entering the above-mentioned traction hole from the outside through the above-mentioned notch in the horizontal direction, the above-mentioned blocking member switches from the first state to the second state;

[0011] When the above-mentioned traction shaft is located in the above-mentioned traction hole, the above-mentioned blocking member switches from the second state to the first state until the above-mentioned blocking member is in the first state and the above-mentioned blocking member no longer moves, and the above-mentioned traction shaft and the above-mentioned traction hole are used in cooperation.

[0012] Preferably, the above-mentioned blocking member includes a baffle plate;

[0013] The above-mentioned baffle is rotatably arranged on the above-mentioned traction plate at the above-mentioned notch through a first rotating shaft, and a torsion spring is arranged on the first rotating shaft;

[0014] The above-mentioned baffle has a first state of closing the above-mentioned notch and a second state of opening the above-mentioned notch;

[0015] During the process that the above-mentioned traction shaft enters the above-mentioned traction hole from the outside through the above-mentioned notch in the horizontal direction, the above-mentioned traction shaft contacts the above-mentioned baffle, so that the end of the above-mentioned baffle rotates in the above-mentioned notch towards the direction close to the above-mentioned traction hole, and the rotation of the above-mentioned baffle switches from the first state to the second state;

[0016] When the above-mentioned traction shaft is located in the above-mentioned traction hole, the above-mentioned baffle rotates in the above-mentioned notch towards the direction away from the above-mentioned traction hole under the action of the torsion spring, and the rotation of the above-mentioned baffle switches from the second state to the first state until the above-mentioned baffle is in the first state and the above-mentioned baffle no longer moves, and the above-mentioned traction shaft and the above-mentioned traction hole are used in cooperation.

[0017] Preferably, an installation platform is provided on the above-mentioned traction plate at the above-mentioned notch, and the above-mentioned baffle is rotatably arranged on the above-mentioned installation platform through a first rotating shaft;

[0018] The vertical side wall on the above-mentioned installation platform has a first outer blocking surface, a first inner blocking surface and a placement groove, a second outer blocking surface is arranged on the side wall of the above-mentioned baffle close to the above-mentioned traction plate, one protruding part of the above-mentioned torsion spring is located in the above-mentioned placement groove, and the other protruding part abuts against the above-mentioned second outer blocking surface;

[0019] When the above-mentioned baffle is in the first state, the first side wall of the above-mentioned baffle abuts against the above-mentioned first outer blocking surface, there is a rotation space between the second side wall of the above-mentioned baffle and the above-mentioned first inner blocking surface, and the end of the above-mentioned baffle is located in the above-mentioned notch to close the above-mentioned notch;

[0020] When the above-mentioned baffle is in the second state, the second side wall of the above-mentioned baffle abuts against the above-mentioned first inner blocking surface, there is a rotation space between the first side wall of the above-mentioned baffle and the above-mentioned first outer blocking surface, and the above-mentioned notch has a space for the above-mentioned traction shaft to move;

[0021] During the process that the above-mentioned baffle switches from the first state to the second state, the end of the above-mentioned baffle rotates towards the direction close to the above-mentioned traction hole;

[0022] During the process that the above-mentioned baffle switches from the second state to the first state, the end of the above-mentioned baffle rotates towards the direction away from the above-mentioned traction hole.

[0023] Preferably, two of the above-mentioned baffles are provided, and the two above-mentioned baffles are symmetric about the above-mentioned notch and are arranged on the traction plates on both sides of the above-mentioned notch.

[0024] Preferably, the above-mentioned traction mechanism further includes a bottom plate, a mounting plate, and a linear driving device;

[0025] The above-mentioned bottom plate is arranged inside the above-mentioned chassis. The above-mentioned traction shaft is installed on the above-mentioned mounting plate and is vertically arranged. The above-mentioned mounting plate is vertically slidably arranged on the above-mentioned bottom plate. The above-mentioned linear driving device is installed on the above-mentioned bottom plate, and its output end is connected to the above-mentioned mounting plate, so that the above-mentioned mounting plate slides in the vertical direction.

[0026] Preferably, the above-mentioned traction mechanism further includes a spring. One end of the above-mentioned spring is connected to the above-mentioned bottom plate, and the other end of the above-mentioned spring is connected to the above-mentioned mounting plate;

[0027] When the above-mentioned traction shaft is located inside the above-mentioned chassis, the above-mentioned spring is in a stretched state.

[0028] Preferably, a slider is vertically arranged on one side of the above-mentioned bottom plate close to the above-mentioned mounting plate, and a guide rail that cooperates with the above-mentioned slider is vertically arranged on one side wall of the above-mentioned mounting plate close to the above-mentioned bottom plate.

[0029] Preferably, a handle is arranged on the above-mentioned carrying frame.

[0030] Preferably, a safety touch edge is arranged on the outer side wall of the above-mentioned chassis.

[0031] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0032] By providing a blocking member that can open and close the notch, when the chassis is walking, the traction shaft can be made to approach the notch along the rising edge and enter the traction hole through the notch, and then immediately drive the carrying frame to walk together, saving the time for the chassis to stop for the traction shaft to be inserted into the traction hole, and further saving the time for the whole vehicle to carry goods. Description of the Drawings

[0033] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 It is a schematic diagram of the whole vehicle in the embodiment of the present utility model;

[0035] Figure 2 It is a schematic diagram of the cooperation between the chassis and the traction device in the embodiment of the present utility model;

[0036] Figure 3 It is a schematic diagram of the cooperation between the traction device and the traction mechanism in the embodiment of the present utility model;

[0037] Figure 4 Schematic diagram of the cooperation between the traction device and the traction shaft in the embodiment of the present utility model;

[0038] Figure 5 Top view of the traction device in the embodiment of the present utility model;

[0039] Figure 6 Cross-sectional view of the traction device in the embodiment of the present utility model;

[0040] Figure 7 Bottom view of the traction device in the embodiment of the present utility model;

[0041] Figure 8 Schematic diagram of the traction plate in the embodiment of the present utility model;

[0042] Figure 9 Schematic diagram of the traction mechanism in the embodiment of the present utility model.

[0043] Description of the reference numerals:

[0044] 1. Bearing frame; 2. Chassis; 3. Traction device; 31. Traction plate; 311. Traction hole; 312. Notch; 313. Installation platform; 314. First outer blocking surface; 315. First inner blocking surface; 316. Placing groove; 32. Blocking member; 321. Baffle; 322. First rotating shaft; 323. Torsion spring; 324. Second outer blocking surface; 325. First side wall; 326. Second side wall; 4. Traction mechanism; 41. Traction shaft; 42. Bottom plate; 43. Installation plate; 44. Linear driving device; 45. Spring; 46. Slide block; 47. Slide rail; 5. Handle; 6. Safety touch edge. Detailed implementation manners

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0046] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0047] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0048] As Figures 1-9 shown, the embodiment of the present utility model provides an AGV tractor, which specifically includes a carrying frame 1, a chassis 2, a traction device 3, and a traction mechanism 4. A driven wheel is provided at the bottom of the carrying frame 1, and a driving wheel is provided at the bottom of the chassis 2. Correspondingly, the traction device 3 is provided on the carrying frame 1, and the traction mechanism 4 is provided on the chassis 2. The two cooperate to complete the traction connection. In order to stably enable the chassis 2 to tow the carrying frame 1, both the traction device 3 and the traction mechanism 4 are provided in two groups. The two groups of traction devices 3 are arranged on the carrying frame 1 along its length direction, and the two groups of traction mechanisms 4 are arranged on the chassis 2 along its length direction and are correspondingly connected in a matching manner; specifically, the traction mechanism 4 specifically includes a traction shaft 41 that can move vertically. The traction device 3 includes a horizontally arranged traction plate 31. The traction plate 31 is provided with a traction hole 311. By inserting the traction shaft 41 into the traction hole 311, the traction cooperation between the traction device 3 and the traction mechanism 4 is completed. The chassis 2 drives the traction plate 31 to move through the traction shaft 41, and then the carrying frame 1 can be driven to move.

[0049] However, for the above traction cooperation method, it is necessary to wait for the traction shaft 41 to rise until the upper part of the traction shaft 41 completely passes through the traction hole 311 before the chassis 2 can be started, which wastes time. Therefore, as Figures 3-4As shown in the figure, the traction device 3 further includes a blocking member 32. A notch 312 communicating with the outside is provided on the side wall of the traction hole 311. The blocking member 32 is disposed at the notch 312. Moreover, the blocking member 32 has a first state of closing the notch 312 and a second state of opening the notch 312. Since the blocking member 32 can be opened, the traction shaft 41 can enter the traction hole 311 from the outside along the horizontal direction through the notch 312. And during this process, the blocking member 32 switches from the first state to the second state, that is, the notch 312 switches from the closed state to the open state, which is convenient for the traction shaft 41 to enter it. Also, because the traction shaft 41 moves vertically in the chassis 2, when traction cooperation is required between the chassis 2 and the carrying frame 1, the traction shaft 41 can rise and approach the notch 312 at the same time. During the walking process of the chassis 2, the traction shaft 41 enters the notch 312, the blocking member 32 opens, and the traction shaft 41 enters the traction hole 311 from the notch 312, and then immediately drives the carrying frame 1 to walk together. This does not require the chassis 2 to be parked in the carrying frame 1 first and wait for the upper part of the traction shaft 41 to completely pass through the traction hole 311 before starting the chassis 2, thus saving the parking time of the chassis 2 and further saving the time for the whole vehicle to carry goods, which is particularly practical in actual use. And when the traction shaft 41 is located in the traction hole 311, the blocking member 32 can switch from the second state to the first state until the blocking member 32 is in the first state and the blocking member 32 no longer moves. At this time, the notch 312 is closed, and the traction shaft 41 will not move to the outside from the notch 312. At this time, the traction shaft 41 is completely in the movement space formed by the side wall of the traction hole 311 and the blocking member 32. The traction shaft 41 cooperates with the traction plate 31 to complete the traction work, avoiding the situation that the traction shaft 41 disengages from the traction plate 31 from the notch 312 during the traction process, resulting in the failure of the traction connection relationship, and ensuring the stability of the traction connection between the chassis 2 and the carrying frame 1.

[0050] In this embodiment, the carrying frame 1 is in an inverted concave shape. When the chassis 2 performs traction cooperation with the carrying frame 1, it needs to enter from the rear of the carrying frame 1. Therefore, in this embodiment, the orientations of the two notches 312 are the same and both face the rear end of the carrying frame 1, which is convenient for the two traction shafts 41 on the chassis 2 to enter.

[0051] Specifically, in this embodiment, as Figures 5-8As shown in the figure, the blocking member 32 includes a baffle 321. The baffle 321 is rotatably arranged on the traction plate 31 at the side end of the notch 312 through a first rotating shaft 322, and a torsion spring 323 is arranged on the first rotating shaft 322. The torsion spring 323 can reset the first rotating shaft 322. The baffle 321 has a first state of closing the notch 312 and a second state of opening the notch 312. The cooperation of the baffle 321, the torsion spring 323 and the first rotating shaft 322 completes the switching between the two states of the baffle 321. The process is as follows: During the process that the traction shaft 41 enters the traction hole 311 from the outside along the horizontal direction through the notch 312, the traction shaft 41 contacts the baffle 321, so that the end of the baffle 321 rotates in the notch 312 towards the direction close to the traction hole 311, and the baffle 321 rotates from the first state to the second state; when the traction shaft 41 is located in the traction hole 311, the baffle 321 rotates in the notch 312 towards the direction away from the traction hole 311 under the action of the torsion spring 323, and the baffle 321 rotates from the second state to the first state until the baffle 321 is in the first state and the baffle 321 no longer moves, and the traction shaft 41 and the traction hole 311 are used in cooperation.

[0052] Specifically, in this embodiment, the specific installation structure of the baffle 321 on the traction plate 31 is as follows: An installation platform 313 is arranged on the traction plate 31 at the notch 312. The baffle 321 is rotatably arranged on the installation platform 313 through a first rotating shaft 322. The torsion spring 323 is sleeved on the first rotating shaft 322 between the baffle 321 and the installation platform 313. The vertical side wall of the installation platform 313 has a first outer blocking surface 314, a first inner blocking surface 315 and a placement groove 316. Correspondingly, a second outer blocking surface 324 is arranged on the side wall of the baffle 321 close to the traction plate 31. The torsion spring 323 has two protruding parts. One protruding part is located in the placement groove 316, and the other protruding part is always in contact with the second outer blocking surface 324, so that the torsion spring 323 is installed. Specifically, after the baffle 321 is installed, when the baffle 321 is in the first state, the first side wall 325 of the baffle 321 abuts against the first outer blocking surface 314, and there is a rotating space between the second side wall 326 of the baffle 321 and the first inner blocking surface 315. The end of the baffle 321 is located in the notch 312 to close the notch 312; when the baffle 321 is in the second state, the second side wall 326 of the baffle 321 abuts against the first inner blocking surface 315, and there is a rotating space between the first side wall 325 of the baffle 321 and the first outer blocking surface 314. At this time, although part of the end of the baffle 321 is located in the notch 312, the notch 312 has a space for the traction shaft 41 to move, and the traction shaft 41 can enter the traction hole 311 through the notch 312.

[0053] Specifically, during the process of the traction shaft 41 entering the traction hole 311 horizontally from the outside through the notch 312, the traction shaft 41 contacts the baffle 321, forcing the baffle 321 to rotate. The baffle 321 switches from the first state to the second state. At the same time, the baffle 321 located at the end of the notch 312 rotates towards the direction close to the traction hole 311. Correspondingly, the first side wall 325 of the baffle 321 rotates away from the first outer blocking surface 314, and the second outer blocking surface 324 rotates towards the direction close to the first inner blocking surface 315 and pushes the end of the torsion spring 323 to rotate. The second side wall 326 of the baffle 321 rotates towards the direction close to the first inner blocking surface 315 until the second side wall 326 of the baffle 321 abuts against the first inner blocking surface 315. At this time, the blocking member 32 is in the second state, the notch 312 is opened, and the traction shaft 41 can enter the traction hole 311 through the notch 312; after the traction shaft 41 is located in the traction hole 311, the traction shaft 41 no longer contacts the baffle 321, and the baffle 321 switches from the second state to the first state. Under the action of the torsion spring 323, the end of the baffle 321 rotates away from the direction of the traction hole 311. The second side wall 326 of the baffle 321 rotates away from the first inner blocking surface 315, and the first side wall 325 of the baffle 321 rotates towards the direction close to the first outer blocking surface 314 until the first side wall 325 of the baffle 321 abuts against the first outer blocking surface 314. The blocking member 32 is in the first state, and at this time, the baffle 321 will no longer rotate. The end of the baffle 321 located at the notch 312 closes the notch 312, preventing the traction shaft 41 from moving from the notch 312 to the outside of the traction plate 31, resulting in the failure of the traction relationship.

[0054] Preferably, two baffles 321 can be provided. The two baffles 321 are symmetric about the notch 312 and are both rotatably arranged on the mounting platforms 313 provided on the traction plates 31 on both sides of the notch 312 through the first rotating shafts 322. When the baffle 321 is in the first state, the two baffles 321 located at the end of the notch 312 jointly close the notch 312. When the traction shaft 41 passes through the notch 312, the two baffles 321 are forced to rotate, thereby opening the notch 312. After the traction shaft 41 is located in the traction hole 311, the two baffles 321 return to the first state under the action of their respective torsion springs 323 and close the notch 312 again. Moreover, the setting of the two baffles 321 makes the size of a single baffle 321 smaller. And compared with setting a single baffle 321, the rotation radius of the baffle 321 can be appropriately reduced, thereby reducing the length of the notch 312, enabling the traction shaft 41 to pass through the notch 312 faster and the traction cooperation time to be shorter. Of course, it can be imagined that the aperture of the traction hole 311 and the width of the notch 312 are both larger than the traction shaft 41.

[0055] Of course, the above-mentioned blocking member 32 can not only be the cooperation structure of the baffle 321 and the torsion spring 323 disclosed above, but also can be other structures, such as the structure of a motor, a distance sensor and a moving plate. The traction shaft 41 approaches the notch 312 from the outside. When the distance sensor detects it, the motor drives the moving plate to open the notch 312, and the traction shaft 41 enters the traction hole 311. Then the motor drives the moving plate to close the notch 312.

[0056] Specifically, as Figure 9 shown, the above-mentioned traction mechanism 4 further includes a bottom plate 42, a mounting plate 43 and a linear driving device 44. The bottom plate 42 is installed in the inner cavity of the chassis 2. The traction shaft 41 is installed on the mounting plate 43 and is vertically arranged. The mounting plate 43 is vertically slidably arranged on the bottom plate 42. The linear driving device 44 is installed on the bottom plate 42, and the output shaft is arranged downward. The linear driving device 44 can be an electric push rod. A connecting plate is connected to the side end of the mounting plate 43, and the output shaft is connected to the connecting plate. Thus, when the linear driving device 44 works, the mounting plate 43 slides in the vertical direction, and then drives the traction shaft 41 to move up or down, completing the lifting movement of the traction shaft 41. When the traction shaft 41 passes upward through the through hole on the upper side wall of the chassis 2 and then passes through the traction hole 311 upward and is located above it, the linear driving device 44 stops working.

[0057] Specifically, in order to realize the sliding connection between the bottom plate 42 and the mounting plate 43, a slider 46 is vertically arranged on the side of the bottom plate 42 close to the mounting plate 43. A slide rail 47 that cooperates with the slider 46 is vertically arranged on the side wall of the mounting plate 43 close to the bottom plate 42. The guide rail is installed in the sliding groove of the slide rail 47, so as to realize the guiding of the mounting plate 43 in the vertical direction.

[0058] Specifically, the traction mechanism 4 further includes a spring 45. One end of the spring 45 is connected to the bottom plate 42, and the other end of the spring 45 is connected to the mounting plate 43. When the traction shaft 41 is located inside the chassis 2, the spring 45 is in a stretched state. Thus, when the linear driving device 44 fails, under the action of the spring 45, the traction shaft 41 can rise and cooperate with the traction shaft 41, playing a guarantee role. Of course, the spring 45 and the linear driving device 44 are respectively arranged on both sides of the mounting plate 43, forming a symmetrical relationship, and the structure is better.

[0059] Specifically, a handle 5 is arranged on the bearing frame 1. The handle 5 is located at the rear end of the bearing frame 1, which is convenient for the user to manually tow the whole trolley. Of course, a handle cover 5 can be arranged on the handle 5 to ensure the comfort of the user when using it.

[0060] Specifically, a safety edge 6 is provided on the outer wall of the chassis 2. The safety edge 6 is a rubber strip-shaped pressure-sensitive switch, which is composed of a rubber outer sleeve, an internal conductive layer, and an aluminum alloy base. When the chassis 2 moves or hits an external obstacle, the rubber outer sleeve deforms to press the internal conductive layer and transmits a signal to the power source to stop the operation, and the chassis 2 will stop safely to ensure the safety of the equipment.

[0061] The above embodiments are only the preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present invention belong to the protection scope required by the present invention.

Claims

1. An AGV tractor, characterized in that: It comprises a load-bearing frame, a chassis, a traction device and a traction mechanism, and both the load-bearing frame and the chassis are movable; The traction device and the traction mechanism are both provided in two groups, which are correspondingly matched and connected; Two groups of the traction devices are arranged on the carrying frame along the length direction thereof, and two groups of the traction mechanisms are arranged on the chassis along the length direction thereof; The traction mechanism comprises a traction shaft which can move vertically, and the traction device comprises a traction plate and a blocking member which are arranged horizontally, wherein the traction plate is provided with a traction hole, and a notch which is communicated with the outside is provided on a side wall of the traction hole, and the blocking member is arranged at the notch; The blocking member has a first state of closing the notch and a second state of opening the notch; When the traction shaft passes through the notch from the outside and enters the traction hole in the horizontal direction, the blocking member switches from the first state to the second state; The traction shaft is located in the traction hole, and the blocking member switches from the second state to the first state until the blocking member is in the first state, the blocking member no longer acts, and the traction shaft and the traction hole are used in conjunction with each other.

2. The AGV tractor according to claim 1, characterized in that: The blocking member includes a baffle; The baffle is rotatably arranged on the traction plate at the notch through a first rotating shaft, and a torsion spring is arranged on the first rotating shaft; The baffle has a first state of closing the notch and a second state of opening the notch; When the traction shaft passes through the notch from the outside and enters the traction hole in the horizontal direction, the traction shaft contacts the baffle plate, so that the end of the baffle plate rotates in the notch toward the traction hole, and the baffle plate rotates from the first state to the second state; The traction shaft is located in the traction hole, and the baffle rotates in the notch in a direction away from the traction hole under the action of the torsion spring. The baffle rotates from the second state to the first state until the baffle is in the first state. The baffle no longer moves, and the traction shaft and the traction hole are used in conjunction with each other.

3. The AGV tractor according to claim 2, characterized in that: A mounting platform is provided on the traction plate located at the notch, and the baffle is rotatably mounted on the mounting platform via a first rotating shaft; The vertical side wall on the mounting platform has a first outer blocking surface, a first inner blocking surface and a placement groove, the side wall of the baffle plate close to the traction plate is provided with a second outer blocking surface, one of the extensions of the torsion spring is located in the placement groove, and the other extension is in contact with the second outer blocking surface; When the baffle is in the first state, the first side wall of the baffle abuts against the first outer blocking surface, a rotation space is provided between the second side wall of the baffle and the first inner blocking surface, and the end of the baffle is located in the notch to close the notch; When the baffle is in the second state, the second side wall of the baffle abuts against the first inner blocking surface, a rotation space is provided between the first side wall of the baffle and the first outer blocking surface, and the notch has a space for the traction shaft to move; When the baffle plate switches from the first state to the second state, the end of the baffle plate rotates toward the direction close to the traction hole; When the baffle plate switches from the second state to the first state, the end of the baffle plate rotates in a direction away from the traction hole.

4. The AGV tractor according to claim 2, characterized in that: The baffles are provided in two numbers, and the two baffles are symmetrical with respect to the notch and are provided on the traction plate at both sides of the notch.

5. The AGV tractor according to claim 1, characterized in that: The traction mechanism also includes a base plate, a mounting plate, and a linear drive device; The base plate is arranged in the chassis, the traction shaft is mounted on the mounting plate and is arranged vertically, the mounting plate is vertically slidably arranged on the base plate, the linear drive device is mounted on the base plate, and its output end is connected to the mounting plate, so that the mounting plate slides in the vertical direction.

6. The AGV tractor according to claim 5, characterized in that: The traction mechanism further comprises a spring, one end of the spring is connected to the bottom plate, and the other end of the spring is connected to the mounting plate; When the traction shaft is located in the chassis, the spring is in a tensioned state.

7. The AGV tractor according to claim 6, characterized in that: A sliding block is vertically arranged on one side of the bottom plate close to the mounting plate, and a guide rail used in conjunction with the sliding block is vertically arranged on one side wall of the mounting plate close to the bottom plate.

8. The AGV tractor according to claim 7, characterized in that: A handle is arranged on the carrying frame.

9. The AGV tractor according to claim 1, characterized in that: The outer side wall of the chassis is provided with a safety touch edge.

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