Shuttle car stopping device and layer-changing elevator

Abstract

The present invention discloses a shuttle car stopping device and a layer-changing elevator. The baffle mechanism of the shuttle car stopping device includes a connecting rotating body and two baffles. The connecting rotating body is arranged along a preset direction and can rotate around its central axis. A spiral groove is provided on the connecting rotating body. The two baffles are arranged at intervals and fixedly connected to the connecting rotating body. The two baffles have a first position for stopping the shuttle car and a second position for avoiding the shuttle car. The sliding mechanism is movably arranged on the guide rail along the preset direction, and one end of the sliding mechanism protrudes from the docking end of the guide rail. When the sliding mechanism and the baffle mechanism move relative to each other, the other end of the sliding mechanism can move in the spiral groove to drive the connecting rotating body to rotate, thereby switching the two baffles between the first position and the second position. When the baffle of the shuttle car stopping device is in the first position, the shuttle car cannot move on the guide rail even if it loses control, thereby reducing the probability of safety accidents and improving safety.

Description

Technical Field

[0001] The present invention relates to the technical field of layer-changing elevators, and in particular to a shuttle vehicle stopping device and a layer-changing elevator. Background Art

[0002] In a high-bay warehouse equipped with intelligent shuttles and three-dimensional racks, a level-changing elevator is a frequently used lifting device. Its primary function is to transport the shuttles and, utilizing its own lifting function, to move them to different levels of the three-dimensional racks.

[0003] During operation, the shuttle car automatically moves to the level-changing elevator according to the dispatching instructions of the dispatching system. The level-changing elevator starts to operate and carries the shuttle car to the specified height or number of layers of the three-dimensional warehouse. If the number of layers of a three-dimensional warehouse is not large and the number of shuttle cars is small, the shuttle car needs to change the shelf layer frequently, and the utilization rate of the level-changing elevator will also increase accordingly.

[0004] In the prior art, after the shuttle car runs onto the guide rail of the floor-changing elevator, it is only fixed by the shuttle car's own motor. This leads to certain safety hazards when the floor-changing elevator is running. For example, if the shuttle car starts abnormally, it will cause a safety accident and damage the machine.

[0005] Therefore, how to propose a stopping device that can keep the shuttle car stationary on the floor-changing elevator is a technical problem that needs to be solved urgently. Summary of the Invention

[0006] The first object of the present invention is to provide a shuttle car stopping device, which can improve the stability of the shuttle car on the floor-changing elevator, reduce the probability of safety accidents, and improve safety.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] A shuttle vehicle stopping device, the shuttle vehicle stopping device is arranged on the guide rail of the layer-changing elevator, the guide rail can reciprocate in a preset direction to dock or detach with the three-dimensional shelf; the shuttle vehicle stopping device includes: a baffle mechanism, the baffle mechanism includes a connecting rotating body and two baffles, the connecting rotating body is arranged along the preset direction and can rotate around its central axis, the connecting rotating body is provided with a spiral groove, the two baffles are arranged at intervals and fixedly connected to the connecting rotating body, the two baffles have a first position for stopping the shuttle vehicle and a second position for avoiding the shuttle vehicle; a sliding mechanism, the sliding mechanism is movably arranged on the The guide rail is provided with one end of the sliding mechanism protruding from the butt end of the guide rail, and the other end of the sliding mechanism can move in the spiral groove to drive the connecting rotating body to rotate; wherein: when the guide rail is docked with the three-dimensional shelf, the end of the sliding mechanism protruding from the butt end of the guide rail is always in contact with the three-dimensional shelf, the guide rail and the baffle mechanism move synchronously in the direction of approaching the three-dimensional shelf, and the baffle rotates from the first position to the second position; when the guide rail is disengaged from the three-dimensional shelf, the guide rail and the baffle mechanism move synchronously in the direction of moving away from the three-dimensional shelf, and the baffle rotates from the second position to the first position.

[0009] Preferably, the sliding mechanism includes a sliding shaft and a first cam bearing follower, the sliding shaft is movably arranged on the guide rail along the preset direction, the first end of the sliding shaft is arranged to protrude from the docking end of the guide rail, the first cam bearing follower is arranged on the second end of the sliding shaft, and the end of the first cam bearing follower is placed in the spiral groove.

[0010] Preferably, the connecting rotating body includes a connecting shaft and a cam sleeve, the cam sleeve is fixedly mounted on the connecting shaft, and the spiral groove is provided on the cam sleeve.

[0011] Preferably, the baffle mechanism further includes two fixing seats, which are spaced apart along the preset direction and fixedly connected to the guide rail, and both ends of the connecting shaft are rotatably connected to the two fixing seats respectively.

[0012] Preferably, the fixing seat is provided with a limiting groove, and the two baffles are placed in the two limiting grooves in a one-to-one correspondence.

[0013] Preferably, the sliding mechanism also includes a guide seat and a second cam bearing follower, the second cam bearing follower is arranged at the second end of the sliding shaft, the guide seat is fixed on the guide rail, and the end of the second cam bearing follower is located in the guide groove of the guide seat.

[0014] Preferably, the first cam bearing follower and the second cam bearing follower are arranged vertically.

[0015] Preferably, the sliding mechanism further comprises two linear bearing seats, which are arranged on the guide rail at intervals along the preset direction, and the sliding shaft is passed through the linear bearings of the two linear bearing seats; and / or, the sliding mechanism further comprises a reset mechanism, which has a tendency to drive the first end of the sliding shaft to move toward the direction of the docking end protruding from the guide rail.

[0016] The second object of the present invention is to provide a layer-changing elevator which has a low probability of safety accidents occurring during operation and high safety.

[0017] To achieve this object, the present invention adopts the following technical solutions:

[0018] A layer-changing elevator comprises a guide rail and the above-mentioned shuttle vehicle stopping device.

[0019] Preferably, there are two guide rails, which are arranged in parallel, and one shuttle vehicle stopping device is provided on the outer side wall of each guide rail.

[0020] Beneficial effects of the present invention:

[0021] The shuttle car stopping device provided by the present invention includes a baffle mechanism and a sliding mechanism. During the process of docking or disengaging the guide rail of the layer-changing elevator with the three-dimensional shelf, the sliding mechanism and the baffle mechanism can move relative to each other. Through the cooperation of the other end of the sliding mechanism with the spiral groove on the baffle mechanism, the connecting rotating body of the baffle mechanism can be driven to rotate around its central axis, thereby switching the two baffles between the first position and the second position. The shuttle car stopping device can rotate to the first position to stop the shuttle car when the shuttle car moves onto the guide rail, and can rotate to the second position when the shuttle car needs to move along the guide rail. The shuttle car stopping device improves the stability of the shuttle car on the layer-changing elevator, reduces the probability of safety accidents, and improves safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an assembly diagram of the shuttle vehicle stopping device and guide rail provided in an embodiment of the present invention;

[0023] Figure 2 Schematic diagram of the structure of the shuttle vehicle stopping device provided by an embodiment of the present invention;

[0024] Figure 3 2 is a schematic structural diagram of a baffle mechanism of a shuttle vehicle stopping device provided by an embodiment of the present invention;

[0025] Figure 4It is a structural schematic diagram of the sliding mechanism of the shuttle vehicle stopping device provided by an embodiment of the present invention.

[0026] In the picture:

[0027] 100. Shuttle car stopping device;

[0028] 101. Baffle; 1011. Buffer structure; 102. Connecting shaft; 103. Cam sleeve; 1031. Spiral groove; 104. Fixed seat; 1041. Fixed base plate; 1042. Fixed side plate; 105. Sliding shaft; 106. First cam bearing follower; 107. Second cam bearing follower; 108. Guide seat; 109. Reset mechanism; 110. Linear bearing seat;

[0029] 200. Guide rail. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," and "outside" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0032] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed or detachable connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention.

[0033] like Figure 1As shown, this embodiment provides a shuttle car stopping device 100, which can be used on the guide rail 200 of the layer-changing elevator to stop the shuttle car. It should be noted that the guide rail 200 of the layer-changing elevator can move back and forth in a preset direction to achieve docking or disengagement with the three-dimensional shelf. The driving body that drives the guide rail 200 to move can be a push rod set on the three-dimensional shelf. The push rod can drive the guide rail 200 to move in the positive direction of the preset direction so that the guide rail 200 gradually approaches the three-dimensional shelf; or the push rod can drive the guide rail 200 to move in the negative direction of the preset direction so that the guide rail 200 gradually moves away from the three-dimensional shelf. The positive direction of the preset direction here can be horizontal to the left, and the reverse direction of the preset direction can be horizontal to the right. Of course, the driving body can also be a linear motor or cylinder set on the three-dimensional shelf, and is not limited to a push rod.

[0034] like Figures 2 to 4 As shown, the shuttle stopping device 100 specifically includes a baffle mechanism and a sliding mechanism. The baffle mechanism includes a connecting rotating body and two baffles 101. The connecting rotating body is arranged along a preset direction and can rotate around its central axis. A spiral groove 1031 is provided on the connecting rotating body. The two baffles 101 are arranged at intervals and fixedly connected to the connecting rotating body. The two baffles 101 have a first position for stopping the shuttle and a second position for avoiding the shuttle during the rotation process of the connecting rotating body. The sliding mechanism is movably arranged on the guide rail 200 along a preset direction, and one end of the sliding mechanism protrudes from the docking end of the guide rail 200. When the baffle mechanism and the sliding mechanism undergo relative displacement, the other end of the sliding mechanism can move in the spiral groove 1031 to drive the connecting rotating body to rotate.

[0035] In some specific embodiments, the sliding mechanism includes a sliding shaft 105 and a first cam bearing follower 106. The sliding shaft 105 is movably arranged on the guide rail 200 along a preset direction. The first end of the sliding shaft 105 is arranged to protrude from the docking end of the guide rail 200. The first cam bearing follower 106 is arranged on the second end of the sliding shaft 105. The end of the first cam bearing follower 106 is placed in the spiral groove 1031.

[0036] It should be noted that the initial position of the baffle 101 is the first position. During the docking process between the guide rail 200 and the three-dimensional shelf, the shuttle vehicle stopping device 100 can automatically rotate the baffle 101 from the first position to the second position to cancel the obstruction of the guide rail 200, allowing the shuttle vehicle to pass through the guide rail 200 and move between the three-dimensional shelf and the layer-changing elevator. Specifically, during the process of the guide rail 200 gradually approaching the three-dimensional shelf in the positive direction of the preset direction, the shuttle vehicle stopping device 100 synchronously moves in the direction of approaching the three-dimensional shelf. Since the first end of the sliding shaft 105 protrudes from the docking end of the guide rail 200, the first end of the sliding shaft 105 can complete the abutment with the three-dimensional shelf earlier than the docking end of the guide rail 200. As the guide rail 200 continues to move, the sliding shaft 105 remains stationary, and the guide rail 200 and the baffle mechanism move synchronously toward the three-dimensional shelf. Since the end of the first cam bearing follower 106 is placed in the spiral groove 1031 of the connecting rotor, the first cam bearing follower 106 can synchronously drive the connecting rotor and the two baffles 101 to rotate, thereby causing the two baffles 101 to rotate from the first position to the second position. When the guide rail 200 is docked with the three-dimensional shelf, the two baffles 101 have rotated to the second position. At this time, if the shuttle car is on the layer-changing elevator, the shuttle car can smoothly pass through the guide rail 200 and move from the layer-changing elevator to the three-dimensional shelf. If the shuttle car is on the three-dimensional shelf, the shuttle car can smoothly pass through the guide rail 200 and move from the three-dimensional shelf to the layer-changing elevator. During the entire process, the relative movement between the baffle mechanism and the sliding mechanism does not require an additional power source. The original push rod on the layer-changing elevator can be used as a power source. Therefore, the baffle 101 does not require an additional power source to switch from the first position to the second position, which greatly simplifies the structure and saves energy.

[0037] After the shuttle vehicle moves onto the guide rail 200 and waits for the guide rail 200 to disengage from the three-dimensional shelf, the various components of the shuttle vehicle stopping device 100 operate in reverse, and the baffle 101 can rotate from the second position to the first position to stop the shuttle vehicle again. Specifically, the two baffles 101 can block the inside of the front wheel group and the inside of the rear wheel group of the shuttle vehicle, respectively, or the two baffles 101 can block the outside of the front wheel group and the outside of the rear wheel group of the shuttle vehicle, respectively, so that the position of the shuttle vehicle on the guide rail 200 can be maintained and it is not easy to move, thereby improving the stability of the shuttle vehicle on the guide rail 200, reducing the probability of safety accidents, and improving safety.

[0038] In some specific embodiments, continue to refer to Figure 2 and Figure 3As shown, the connecting rotating body includes a connecting shaft 102 and a cam sleeve 103. The cam sleeve 103 is fixedly mounted on the connecting shaft 102, and the cam sleeve 103 is provided with a spiral groove 1031. Of course, in other embodiments, the rotating connecting body may also include only the connecting shaft 102, and the spiral groove 1031 may be directly provided on the connecting shaft 102; or the rotating connecting body may be an integrally formed three-step shaft, the middle section of the three-step shaft being larger than the other two sections, and the spiral groove 1031 being provided on the middle section of the three-step shaft.

[0039] It should be noted that the spiral groove 1031 is provided on the circumference of the cam sleeve 103 and includes multiple smoothly connected straight segments or arc segments. In some specific embodiments, the spiral groove 1031 includes a first straight segment, an arc segment, and a second straight segment connected in sequence. The first straight segment and the second straight segment are both parallel to the axis of the cam sleeve 103. The relative position of the first straight segment and the second straight segment, as well as the offset direction of the arc segment, are determined based on the corresponding relationship between the movement direction of the sliding shaft 105 and the rotation direction of the baffle 101.

[0040] In order to secure the connecting shaft 102 to the guide rail 200 and enable the connecting shaft 102 to rotate smoothly, the baffle mechanism further includes two fixing seats 104. The two fixing seats 104 are spaced apart along a predetermined direction and fixedly connected to the guide rail 200. The two ends of the connecting shaft 102 are rotatably connected to the two fixing seats 104. The two fixing seats 104 can provide stable support for the connecting shaft 102, allowing the connecting shaft 102 to rotate smoothly.

[0041] Optionally, continue with reference to Figure 2 As shown, each fixed seat 104 includes a fixed base plate 1041 and two fixed side plates 1042. The fixed base plate 1041 is fixedly connected to the guide rail 200 by screws, clamping, or welding. The two fixed side plates 1042 are spaced apart and protruded from the fixed base plate 1041, forming a retaining groove between the two fixed side plates 1042. A rotation axis hole is provided at an opposite position on each of the two fixed side plates 1042. The ends of the connecting shaft 102 pass through the two rotation axis holes on the corresponding sides in sequence, thereby achieving a rotational connection between the connecting shaft 102 and the fixed seat 104. Optionally, a bearing can be provided in the rotation axis hole, and the end of the connecting shaft 102 is passed through the bearing to improve the rotation accuracy of the connecting shaft 102.

[0042] In some more specific embodiments, the two baffles 101 are provided in a one-to-one correspondence with the two fixing seats 104, and the baffles 101 are placed in the limiting grooves of the corresponding fixing seats 104. The fixing seats 104 can limit the left and right swinging of the baffles 101, but will not affect the rotation of the baffles 101 around the central axis of the connecting shaft 102.

[0043] In some more specific embodiments, the baffle 101 includes an L-shaped connecting portion and a stopping portion, the end of the connecting portion away from the stopping portion is sleeved on the connecting shaft 102 and connected to the connecting shaft 102 through a key, the connecting portion is located in the limiting groove, and the stopping portion is used to block the inner or outer side of the wheel of the shuttle, thereby limiting the position of the shuttle. Figure 2 and Figure 3 As shown, a buffer structure 1011 is provided on the stop surface of the stop portion. When the shuttle vehicle has a tendency to move, the buffer structure 1011 can contact the wheels of the shuttle vehicle, thereby cushioning the impact of the shuttle vehicle on the stop portion. Specifically, the buffer structure 1011 can be a deformable structure such as a rubber pad or a sponge pad.

[0044] Furthermore, in order to prevent the sliding shaft 105 from rotating during the movement and thus being unable to push the cam sleeve 103, continue to refer to Figure 2 and Figure 4 As shown, the sliding mechanism also includes a guide seat 108 and a second cam bearing follower 107. The second cam bearing follower 107 is disposed at the second end of the sliding shaft 105. The guide seat 108 is fixedly mounted on the guide rail 200, and the end of the second cam bearing follower 107 is positioned within the guide groove of the guide seat 108. The cooperation between the guide seat 108 and the second cam bearing follower 107 ensures that the sliding shaft 105 can only move in a predetermined direction and cannot rotate about its central axis. This allows the first cam bearing follower 106 to stably drive the cam sleeve 103 to rotate as it moves within the spiral groove 1031. It should be noted that the specific structure of the cam bearing follower is conventional and will not be described in detail here.

[0045] In some specific embodiments, the first cam bearing follower 106 and the second cam bearing follower 107 are vertically arranged. The first cam bearing follower 106 is vertically arranged, the second cam bearing follower 107 is horizontally arranged, and the guide seat 108 is arranged directly behind the second end of the sliding shaft 105.

[0046] Continue to refer to Figure 4 As shown, the sliding mechanism further includes two linear bearing blocks 110, which are spaced apart along a predetermined direction on the guide rail 200, and the sliding shaft 105 is passed through the linear bearings of the two linear bearing blocks 110. The linear bearing blocks 110 not only support the sliding shaft 105 but also improve the movement accuracy of the sliding shaft 105 in the predetermined direction.

[0047] Furthermore, in order to realize that the baffle 101 can automatically return from the second position to the first position during the separation process between the guide rail 200 and the three-dimensional shelf, the sliding mechanism further includes a reset mechanism 109, which has a tendency to drive the first end of the sliding shaft 105 to move toward the butt end of the protruding guide rail 200. Figure 4 As shown, the reset mechanism 109 is a coil spring mounted on the sliding shaft 105 and positioned between two linear bearing seats 110. One end of the coil spring is fixedly connected to the sliding shaft 105, while the other end abuts the linear bearing seat 110 near the second end of the sliding shaft 105. As a result, the coil spring is compressed during the docking process between the guide rail 200 and the three-dimensional shelf. During the detachment process between the guide rail 200 and the three-dimensional shelf, the coil spring drives the sliding shaft 105 to return to its initial position, where its first end protrudes from the docking end of the guide rail 200. During this process, the movement of the first cam bearing follower 106 within the spiral groove 1031 drives the camshaft to rotate in the opposite direction, thereby automatically resetting the baffle 101 from the second position to the first position. Of course, in other embodiments, the reset mechanism 109 can also be a tension spring or a torsion spring, as long as it has a tendency to drive the first end of the sliding shaft 105 toward the docking end of the guide rail 200.

[0048] It should be noted that the length of the first end of the sliding shaft 105 extending beyond the docking end of the guide rail 200 cannot be too long, thereby ensuring that the first end of the sliding shaft 105 cannot be connected to the three-dimensional shelf, leaving a certain safety distance. A collision block is also installed on the three-dimensional shelf, which can support the first end of the sliding shaft 105, thereby reversely pushing the sliding shaft 105 out during the docking process between the guide rail 200 and the three-dimensional shelf, ultimately achieving the purpose of mechanically flipping up the baffle 101.

[0049] This embodiment also provides a floor-changing elevator, which includes a guide rail 200 and the aforementioned shuttle stopping device 100. The shuttle can move along the guide rail 200, and the shuttle stopping device 100 is disposed on the guide rail 200. In some specific embodiments, there are two guide rails 200, which are arranged in parallel. Each guide rail 200 has a shuttle stopping device 100 disposed on its outer wall. By using the shuttle stopping device 100, the floor-changing elevator has a low probability of safety accidents during operation and a high level of safety.

[0050] The operating principle of the layer-changing elevator is as follows:

[0051] 1. The scheduling system instructs the layer-changing elevator to reach the shelf level or height specified by the three-dimensional shelf. The push rod on the layer-changing elevator pushes the two guide rails 200 on the layer-changing elevator to dock with the guide rails on the three-dimensional shelf. Some time after the docking begins, the first end of the sliding shaft 105 contacts the bumper of the three-dimensional shelf. During the subsequent docking process, the bumper slowly pushes the sliding shaft 105 back to a state flush with the guide rails 200. As the sliding shaft 105 is pushed back, the sliding shaft 105 is mechanically driven by other components of the shuttle vehicle stopping device 100, ultimately lifting the two baffles 101 to the second position. Since the baffles 101 no longer block the guide rails 200, the shuttle vehicle on the three-dimensional shelf can run to the layer-changing elevator via the guide rails 200.

[0052] 2. After the shuttle car runs onto the level-changing elevator, the push rod of the level-changing elevator pulls back the guide rail 200 on it, and the guide rail 200 separates from the collision block of the three-dimensional shelf. Because the sliding shaft 105 is sheathed with a coil spring, and the coil spring accumulates a certain amount of elastic potential energy after being compressed, the sliding shaft 105 will be driven by the coil spring to extend from the docking end of the guide rail 200 to the originally set length, and at the same time, the two baffles 101 will fall to the first position. The two baffles 101 are respectively blocked on the outside of the front and rear wheels of the shuttle car, thereby blocking the shuttle car. Because of the baffles 101, even if the shuttle car loses control, it will not rush out of the level-changing elevator and cause an accident, thus improving safety.

[0053] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A shuttle vehicle stopping device, characterized in that: The shuttle vehicle stopping device is arranged on a guide rail (200) of the layer-changing elevator, and the guide rail (200) can move back and forth in a preset direction to dock with or detach from the three-dimensional shelf; The shuttle vehicle stopping device includes: A baffle mechanism, the baffle mechanism comprising a connecting rotating body and two baffles (101), the connecting rotating body being arranged along the preset direction and being rotatable about its central axis, the connecting rotating body being provided with a spiral groove (1031), the two baffles (101) being arranged at intervals and fixedly connected to the connecting rotating body, the two baffles (101) having a first position for stopping a shuttle vehicle and a second position for avoiding the shuttle vehicle; A sliding mechanism, the sliding mechanism being movably arranged on the guide rail (200) along the preset direction, with one end of the sliding mechanism protruding from the butt end of the guide rail (200), and the other end of the sliding mechanism being capable of moving within the spiral groove (1031) to drive the connecting rotating body to rotate; wherein: When the guide rail (200) is docked with the three-dimensional shelf, one end of the sliding mechanism protruding from the docking end of the guide rail (200) always abuts against the three-dimensional shelf, the guide rail (200) and the baffle mechanism move synchronously in a direction close to the three-dimensional shelf, and the baffle (101) rotates from the first position to the second position; When the guide rail (200) is disengaged from the three-dimensional shelf, the guide rail (200) and the baffle mechanism move synchronously in a direction away from the three-dimensional shelf, and the baffle (101) rotates from the second position to the first position, so that the two baffles (101) can respectively block the inner side of the front wheel group and the inner side of the rear wheel group of the shuttle vehicle moving onto the guide rail (200), or the two baffles (101) can respectively block the outer side of the front wheel group and the outer side of the rear wheel group of the shuttle vehicle, so that the position of the shuttle vehicle on the guide rail (200) can be kept fixed.

2. The shuttle vehicle stopping device according to claim 1, characterized in that: The sliding mechanism comprises a sliding shaft (105) and a first cam bearing follower (106); the sliding shaft (105) is movably arranged on the guide rail (200) along the preset direction; the first end of the sliding shaft (105) protrudes from the butt end of the guide rail (200); the first cam bearing follower (106) is arranged on the second end of the sliding shaft (105); and the end of the first cam bearing follower (106) is placed in the spiral groove (1031).

3. The shuttle vehicle stopping device according to claim 2, characterized in that: The connecting rotating body comprises a connecting shaft (102) and a cam sleeve (103); the cam sleeve (103) is fixedly sleeved on the connecting shaft (102); and the spiral groove (1031) is provided on the cam sleeve (103).

4. The shuttle vehicle stopping device according to claim 3, characterized in that: The baffle mechanism further comprises two fixing seats (104), the two fixing seats (104) being spaced apart along the preset direction and fixedly connected to the guide rail (200), and the two ends of the connecting shaft (102) being rotatably connected to the two fixing seats (104).

5. The shuttle vehicle stopping device according to claim 4, characterized in that: A limiting groove is provided on the fixing seat (104), and the two baffles (101) are placed in the two limiting grooves in a one-to-one correspondence.

6. The shuttle vehicle stopping device according to claim 2, characterized in that: The sliding mechanism further includes a guide seat (108) and a second cam bearing follower (107), wherein the second cam bearing follower (107) is arranged at the second end of the sliding shaft (105), the guide seat (108) is fixedly arranged on the guide rail (200), and the end of the second cam bearing follower (107) is placed in the guide groove of the guide seat (108).

7. The shuttle vehicle stopping device according to claim 6, characterized in that: The first cam bearing follower (106) and the second cam bearing follower (107) are arranged vertically.

8. The shuttle vehicle stopping device according to claim 2, characterized in that: The sliding mechanism further comprises two linear bearing seats (110), the two linear bearing seats (110) being arranged on the guide rail (200) at intervals along the preset direction, and the sliding shaft (105) being passed through the linear bearings of the two linear bearing seats (110); And / or, the sliding mechanism further comprises a reset mechanism (109), wherein the reset mechanism (109) has a tendency to drive the first end of the sliding shaft (105) to move in the direction of the butt end protruding from the guide rail (200).

9. A layer-changing elevator, characterized in that: It comprises a guide rail (200) and a shuttle stopping device according to any one of claims 1 to 8.

10. The layer-changing elevator according to claim 9, characterized in that: There are two guide rails (200), the two guide rails (200) are arranged in parallel, and a shuttle vehicle stopping device is provided on the outer side wall of each guide rail (200).

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