Emergency stop device and transfer trolley thereof
By designing the emergency stop button assembly and linkage mechanism of the emergency stop device, the rapid emergency braking and restart of the AGV trolley is achieved, solving the problem of difficulty in fast and effective braking in the prior art, and improving the operation safety and simplicity of the transfer truck.
Patent Information
- Application Number
- CN202421810309.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-07-29
AI Technical Summary
In the prior art, AGV cars are difficult to quickly and effectively brake and restart quickly when encountering emergencies, which may cause safety accidents.
An emergency stop device is designed, including an emergency stop button assembly, a linkage mechanism and a blocking assembly. By pressing the emergency stop button assembly, the linkage mechanism drives the blocking plate of the blocking assembly to switch between the blocking position and the exposed position, thereby controlling the operation of the transfer vehicle.
In an emergency, the transfer truck can be quickly stopped without operating the transfer truck's operating panel, improving operational safety and simplicity.
Smart Images
Figure CN223116486U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of safety control devices, and in particular, to an emergency stop device and its transfer vehicle. Background Art
[0002] Emergency stop buttons are commonly used in medium and large-sized devices. In the event of an abnormality or danger in the device, pressing the emergency stop button can cut off the power supply. After troubleshooting, releasing the emergency stop button can restart the device.
[0003] In addition, in related technologies, AGV carts are usually used in factories to carry shelves to achieve the transfer of goods, which helps to improve the automation level and production efficiency of the factory. However, when the AGV cart is running, if an unexpected situation occurs, it is necessary for the staff to manually press the pause button on the operation panel of the AGV cart, and after the emergency is eliminated, it is also necessary for the staff to manually operate to resume the operation of the AGV cart. Therefore, it is difficult to quickly and effectively emergency brake and restart the AGV cart, which may lead to safety accidents. Summary of the Invention
[0004] One or more embodiments of this application provide an emergency stop device to solve or at least partially alleviate the problem in related technologies that it is difficult to quickly and effectively emergency brake an AGV cart.
[0005] One or more embodiments of this application provide a transfer vehicle having the above-mentioned emergency stop device.
[0006] In the first aspect of this application, an emergency stop device is provided, adopting the following technical solution:
[0007] An emergency stop device includes an emergency stop button assembly; a linkage mechanism, the linkage mechanism includes a first transmission component, a commutation component, and a second transmission component, the commutation component is rotatably connected to the first transmission component and the second transmission component, the emergency stop button assembly is operably connected to the first transmission component; a shielding component, the shielding component includes a driven member and a shielding plate, the driven member is connected to the shielding plate, the driven member is rotatably connected to the second transmission component, under the condition that the first transmission component drives the second transmission component through the commutation component to change the direction, the second transmission component drives the driven member to move, so that the shielding plate switches between a shielding position and an exposed position.
[0008] In some embodiments, the first transmission assembly includes a first transmission rod, the second transmission assembly includes a second transmission rod, the first transmission rod is arranged in the vertical direction, the second transmission rod is arranged in a direction intersecting the first transmission rod, and the first transmission rod and the second transmission rod are respectively hinged to two ends of the commutation assembly, so that the transmission direction can be converted between the first transmission rod and the second transmission rod.
[0009] In some embodiments, the first transmission assembly further includes an adjusting member, and the adjusting member is adjustably mounted below the emergency stop button assembly along the first transmission rod, so as to adjust the pressing distance of the emergency stop button assembly, so that the rotation angle of the shielding plate is adjusted.
[0010] In some embodiments, the linkage mechanism further includes at least one set of guiding assemblies, the guiding assemblies are respectively arranged along the first transmission rod and / or the second transmission rod, the guiding assembly includes a guiding block and a pair of fixed seats, the fixed seats are arranged at intervals, and the guiding block is adjacently mounted to one of the fixed seats.
[0011] In some embodiments, the linkage mechanism further includes at least one set of reset assemblies, the reset assemblies are mounted between the fixed seats of the first transmission rod and / or between the fixed seats of the second transmission rod, the reset assembly includes an elastic member and a snap ring, the snap ring is close to the fixed seat where the guiding block is mounted, one end of the elastic member abuts against the fixed seat deviating from the guiding block, the other end of the elastic member abuts against the snap ring, and under the condition that the emergency stop button assembly is reset, the first transmission rod and the second transmission rod are driven to reset by the elastic member.
[0012] In some embodiments, the emergency stop device further includes a protective cover, the protective cover includes a first protective cover and a second protective cover, the first protective cover is arranged in the vertical direction relative to the first transmission rod, the second protective cover is arranged in the horizontal direction relative to the second transmission rod, two ends of the second protective cover are respectively fixedly connected to the two first protective covers, the bottom of the fixed seat is fixedly connected to the protective cover, and the first transmission rod and / or the second transmission rod pass through the fixed seat.
[0013] In some embodiments, the first protective cover includes an adjustment window and a cover plate, the adjustment window is opened on the back side of the first protective cover opposite to the adjusting member of the first transmission assembly, and the cover plate is movably connected to the adjustment window.
[0014] In some embodiments, the emergency stop device further includes a mounting base and an identification member. The identification member is disposed on the back surface of the mounting base. The mounting base is located below the second transmission assembly. The driven member is connected to the mounting base, such that the shielding plate is rotatably disposed relative to the identification member on the back surface of the mounting base. Under the condition that the shielding plate rotates to the shielding position, the identification member is shielded by the shielding plate. Under the condition that the shielding plate rotates to the exposed position, the identification member is exposed and can be identified.
[0015] In some embodiments, the shielding assembly further includes a rotating shaft. The driven member and the shielding plate are respectively connected to two ends of the rotating shaft. Under the condition that the first transmission assembly drives the second transmission assembly through the direction-changing assembly to change the direction, the second transmission assembly drives the driven member, and the driven member drives the shielding plate to rotate synchronously through the rotating shaft, such that the shielding plate switches between the shielding position and the exposed position.
[0016] In some embodiments, the direction-changing assembly includes a direction-changing block and a support. The direction-changing block includes a first connecting portion, a hinged portion, and a second connecting portion. The hinged portion is located in the middle of the direction-changing block. The direction-changing block is rotatably connected to the support through the hinged portion. The first connecting portion and the second connecting portion are integrally formed by bending. The first connecting portion is rotatably connected to the lower end of the first transmission rod. The emergency stop button assembly is installed at the upper end of the first transmission rod. The second connecting portion is rotatably connected to one end of the second transmission rod. The driven member is rotatably installed at the other end of the second transmission rod. Wherein, the two second transmission rods are symmetrically connected to two ends of the driven member respectively, and the rotation angles of the driven member and the shielding plate are 90° ± 5°.
[0017] In a second aspect of the present application, a transporter is provided, adopting the following technical solution:
[0018] A transporter includes the emergency stop device as described above.
[0019] Compared with the related art, one or more embodiments of the present application include at least one of the following beneficial technical effects:
[0020] In an emergency, an operator can press the emergency stop button assembly, and through the linkage mechanism, drive the shielding plate of the shielding assembly to rotate to shield the identification member, thereby stopping the transporter. There is no need to operate the operation panel of the transporter, which is beneficial to quickly stopping the operation of the transporter, improving the safety of the operation of the transporter, and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] To more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description only relate to some embodiments of the present application and do not limit the present application.
[0022] Figure 1 It is a three-dimensional structure diagram of an emergency stop mechanism according to some embodiments of the present application.
[0023] Figure 2 It is a three-dimensional structure diagram of a linkage device of an emergency stop mechanism according to some embodiments of the present application.
[0024] Figure 3 It is a three-dimensional structure diagram of a partial bottom surface of the vehicle floor of an emergency stop mechanism according to some embodiments of the present application.
[0025] Figure 4 It is a three-dimensional structure diagram of a partial bottom surface of a mounting seat of an emergency stop mechanism according to some embodiments of the present application.
[0026] Figure 5 It is Figure 1 an enlarged view of part A in
[0027] Figure 6 It is Figure 2 an enlarged view of part D in
[0028] Figure 7 It is Figure 1 an enlarged view of part B in
[0029] Figure 8 It is Figure 2 an enlarged view of part E in
[0030] Figure 9 It is Figure 1 an enlarged view of part C in
[0031] Figure 10 It is Figure 2 an enlarged view of part F in
[0032] Figure 11 It is a three-dimensional structure diagram of a shielding component and a mounting seat according to some embodiments of the present application.
[0033] In the figure: 10, emergency stop button assembly; 20, linkage mechanism; 21, first transmission assembly; 211, first transmission rod; 212, adjusting member; 22, reversing assembly; 221, reversing block; 2211, first connection portion; 2212, hinged portion; 2213, second connection portion; 222, support; 23, second transmission assembly; 231, second transmission rod; 30, guiding assembly; 31, guiding block; 32, fixed seat; 40, reset assembly; 41, elastic member; 42, snap ring; 50, shielding assembly; 51, shielding plate; 52, driven member; 53, rotating shaft; 54, bearing seat; 61, mounting seat; 62, identifying member; 71, vehicle floor plate; 72, through hole; 80, protective cover; 81, first protective cover; 811, adjustment window; 812, cover plate; 82, second protective cover. Detailed implementation manners
[0034] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings showing multiple embodiments according to the present application. It should be understood that the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments described in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.
[0035] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs; the terms used in the description of the present application in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including", "comprising", "having", "possessing", "containing", "including" and the like in the specification and claims of the present application and the above drawings are open-ended terms. Therefore, a method or device "including", "comprising", "having" one or more steps or elements has one or more steps or elements, but is not limited to only having these one or more elements. The terms "first", "second" and the like in the specification and claims of the present application or the above drawings are used to distinguish different objects and are not used to describe a specific order or primary-secondary relationship. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.
[0036] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application 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 to the present application.
[0037] Figure 1 Schematic diagram of an emergency stop device according to some embodiments of the present application.
[0038] One or more embodiments of the present application disclose an emergency stop device. Refer to Figures 1 to 11 , the emergency stop device includes an emergency stop button assembly 10, a linkage mechanism 20, and a shielding assembly 50. The linkage mechanism 20 includes a first transmission assembly 21, a commutation assembly 22, and a second transmission assembly 23. The commutation assembly 22 is rotatably connected to the first transmission assembly 21 and the second transmission assembly 23, and the emergency stop button assembly 10 is operably connected to the first transmission assembly 21. The shielding assembly 50 includes a follower 52 and a shielding plate 51. The follower 52 is connected to the shielding plate 51, and the follower 52 is rotatably connected to the second transmission assembly 23. Under the condition that the first transmission assembly 21 drives the second transmission assembly 23 through the commutation of the commutation assembly 22, the second transmission assembly 23 drives the follower 52 to move, so that the shielding plate 51 switches between a shielding position and an exposed position.
[0039] Furthermore, refer to Figure 4 , the emergency stop device further includes a mounting base 61 and an identification member 62. The identification member 62 is disposed on the back of the mounting base 61. The mounting base 61 is located below the second transmission assembly 23. The follower 52 is connected to the mounting base 61. The shielding plate 51 is movably disposed relative to the identification member 62 on the back of the mounting base 61. Under the condition that the shielding plate 51 moves to the shielding position, the identification member 62 is shielded by the shielding plate 51. Under the condition that the shielding plate 51 moves to the exposed position, the identification member 62 is exposed and can be recognized. It can be understood that the second transmission assembly 23 can drive the shielding plate 51 through the follower 52, so that the shielding plate 51 switches between the shielding position and the exposed position by means of translation, rotation, flipping, etc. to shield or expose the identification member 62. The present application does not make specific limitations on this.
[0040] That is to say, in an emergency, the operator can press the emergency stop button assembly 10, and drive the baffle 51 of the shielding assembly 50 to move through the linkage mechanism 20 to shield the recognition element 62, so that the transporter stops, without operating the operation panel of the transporter, which is beneficial to quickly stop the operation of the transporter, improve the safety of the operation of the transporter, and is easy to operate.
[0041] It can be understood that a recognition device is installed on the transporter, for example: a camera or a vision sensor. The recognition device and the recognition element 62 are arranged opposite to each other. The recognition device is used to recognize and sense the recognition element 62. The baffle 51 is arranged between the recognition device and the recognition element 62 in a position-switchable manner. Then, through the processing system or preset program of the transporter, the transporter can work normally when the recognition element 62 is recognized, and stop working when the recognition element 62 cannot be recognized. Specifically, when the baffle 51 is in the shielding position, the baffle 51 can shield the recognition element 62, so that the recognition device of the transporter cannot scan the recognition element 62, and then the transporter stops working; when the baffle 51 is in the exposed position, the baffle 51 can avoid the recognition element 62, so that the recognition device of the transporter can scan the recognition element 62, and then the transporter works normally. In at least one embodiment, the recognition element 62 is a two-dimensional code.
[0042] In some embodiments, the shielding assembly 50 further includes a rotating shaft 53. The driven member 52 and the baffle 51 are respectively connected to both ends of the rotating shaft 53, so that the driven member 52 and the baffle 51 are adapted to rotate synchronously. Specifically, the driven member 52 is connected to the mounting seat 61. The lower end of the rotating shaft 53 passes through the mounting seat 61, so that the baffle 51 is rotatably arranged relative to the recognition element 62 on the back of the mounting seat 61. When the baffle 51 rotates to the shielding position, the recognition element 62 is shielded by the baffle 51. When the baffle 51 rotates to the exposed position, the recognition element 62 is exposed and recognized.
[0043] Refer to Figure 1 and Figure 2 , by pressing the emergency stop button assembly 10, the first transmission assembly 21 can be driven to move. Then, through the first transmission assembly 21, the reversing assembly 22 is driven to move, so that the reversing assembly 22 drives the second transmission assembly 23 to move. Further, the second transmission assembly 23 can drive the driven member 52 to rotate. Furthermore, the driven member 52 and the baffle 51 can rotate synchronously through the connection of the rotating shaft 53, so that the baffle 51 can rotate between the shielding position and the exposed position.
[0044] In some embodiments, refer to Figures 5 to 8, the first transmission assembly 21 includes a first transmission rod 211, the second transmission assembly 23 includes a second transmission rod 231, the first transmission rod 211 is arranged in the vertical direction, the second transmission rod 231 is arranged in a direction intersecting the first transmission rod 211, and the first transmission rod 211 and the second transmission rod 231 are respectively hinged to both ends of the reversing assembly 22, so that the transmission direction can be converted between the first transmission rod 211 and the second transmission rod 231.
[0045] It can be understood that the shielding assembly 50 is usually arranged at a position close to the vehicle floor 71 of the transfer vehicle, and the emergency stop button assembly 10 is usually arranged at a position close to the handlebar of the transfer vehicle for the convenience of the staff to operate quickly. Therefore, the first transmission rod 211 of the first transmission assembly 21 is arranged in the vertical direction so that under the condition of pressing the emergency stop button assembly 10, the first transmission rod 211 is adapted to move downward in the vertical direction together with the emergency stop button assembly 10. Further, the second transmission rod 231 of the second transmission assembly 23 is arranged to intersect the first transmission rod 211, so that the vertical movement of the first transmission rod 211 is converted into the axial movement of the second transmission rod 231, and then the driven member 52 of the shielding assembly 50 can be pushed to rotate.
[0046] It is worth mentioning that the end of the first transmission rod 211 and the end of the second transmission rod 231 can also be respectively abutted against the reversing assembly 22, and the present application does not make specific restrictions on this. In at least one embodiment, the end of the first transmission rod 211 is hinged to the reversing assembly 22, and the end of the second transmission rod 231 is abutted against the reversing assembly 22, which is beneficial to reducing the assembly difficulty of the linkage mechanism 20 and improving the production efficiency.
[0047] In some embodiments, referring to Figure 5 and Figure 6 , the first transmission assembly 21 further includes an adjusting member 212, and the adjusting member 212 is adjustably mounted below the emergency stop button assembly 10 along the first transmission rod 211, so as to adjust the pressing distance of the emergency stop button assembly 10 and adjust the rotation angle of the shielding plate 51.
[0048] Specifically, the lower end of the emergency stop button assembly 10 abuts against the adjusting member 212, and the adjusting member 212 is adapted to move axially along the first transmission rod 211, so as to adjust the length of the part of the first transmission rod 211 between the emergency stop button assembly 10 and the reversing assembly 22, and further adjust the steering angle of the reversing assembly 22. Further, the exposed position of the shielding plate 51 can be adjusted through the second transmission rod 231 connected between the reversing assembly 22 and the driven member 52.
[0049] It can be understood that under the condition that the emergency stop button assembly 10 is in the initial position, that is, the emergency stop button assembly 10 is not pressed, the shielding plate 51 is in the exposed position. Under the condition that the emergency stop button assembly 10 is in the emergency stop position, that is, the emergency stop button assembly 10 is pressed, the shielding plate 51 is rotated to the shielding position through the linkage mechanism 20. Further, the exposed position of the shielding plate 51 can be adjusted through the adjusting member 212, and at the same time, the shielding position of the shielding plate 51 can be adjusted. Furthermore, when the shielding plate 51 is in the exposed position, it is suitable for exposing the identification member 62, and when in the shielding position, it is suitable for shielding the identification member 62, which is beneficial to reducing the requirement for the position accuracy of the shielding plate 51 during the assembly of the emergency stop device, facilitating later adjustment, and improving the production efficiency and the qualified rate of finished products.
[0050] In at least one embodiment, referring to Figure 5 and Figure 6 , the adjusting member 212 is a nut, and one end of the first transmission rod 211 close to the emergency stop button assembly 10 has a thread to be suitable for cooperating with the nut.
[0051] In some embodiments, referring to Figures 5 to 8 , the linkage mechanism 20 further includes at least one set of guiding components 30. The guiding components 30 are respectively arranged along the first transmission rod 211 and / or the second transmission rod 231. The guiding component 30 includes a guiding block 31 and a pair of fixing seats 32. The fixing seats 32 are arranged at intervals, and the guiding block 31 is adjacently installed to one of the fixing seats 32.
[0052] It can be understood that the fixing seats 32 are arranged at intervals, and the first transmission rod 211 or the second transmission rod 231 penetrates through the fixing seats 32. Furthermore, through the arrangement direction of the fixing seats 32, the axis of the first transmission rod 211 can be set vertically, and the connection line between the commutation component 22 and the driven member 52 can coincide with the axis of the second transmission rod 231. In addition, the cooperative movement of the first transmission rod 211 and the guiding block 31, and the cooperative movement of the second transmission rod 231 and the guiding block 31 can limit the moving directions of the first transmission rod 211 and the second transmission rod 231, respectively reducing the friction between the first transmission rod 211, the second transmission rod 231 and the fixing seats 32, which is beneficial to extending the service lives of the first transmission rod 211, the second transmission rod 231 and the fixing seats 32, and enabling the transmission of the linkage mechanism 20 to be smoother and improving the reliability of the emergency stop operation.
[0053] In at least one embodiment, each group of guiding components 30 may also include one or more fixing seats 32, and may also include multiple guiding blocks 31. The present application does not make specific limitations on this.
[0054] In some embodiments, referring to Figures 5 to 8, the linkage mechanism 20 further includes at least one set of reset components 40. The reset components 40 are installed between the fixed seats 32 of the first transmission rod 211 and / or between the fixed seats 32 of the second transmission rod 231. The reset components 40 include an elastic member 41 and a snap ring 42. The snap ring 42 is close to the fixed seat 32 where the guide block 31 is installed. One end of the elastic member 41 abuts against the fixed seat 32 deviating from the guide block 31, and the other end of the elastic member 41 abuts against the snap ring 42. Under the condition that the emergency stop button assembly 10 is reset, the first transmission rod 211 and the second transmission rod 231 are driven to reset by the elastic member 41.
[0055] It can be understood that the snap ring 42 is clamped on the outer periphery of the first transmission rod 211 to be adapted to move together with the first transmission rod 211, and / or the snap ring 42 is clamped on the outer periphery of the second transmission rod 231 to be adapted to move together with the second transmission rod 231. One end of the elastic member 41 abuts against the snap ring 42, and the other end of the elastic member 41 abuts against the fixed seat 32. Under the condition that the emergency stop button assembly 10 is in the emergency stop position, the elastic member 41 is in a compressed state. Furthermore, under the condition that the emergency stop button assembly 10 is reset to the initial position, the elastic member 41 can provide a restoring force, so that the second transmission rod 231 moves in a direction away from the driven member 52, and the first transmission rod 211 moves in a direction away from the commutation assembly 22.
[0056] In at least one embodiment, reset components 40 are provided on both the first transmission rod 211 and the second transmission rod 231, thereby improving the reset force of the linkage mechanism 20. Under the condition that the emergency stop button assembly 10 returns from the emergency stop position to the initial position, the linkage mechanism 20 can be reset more quickly and reliably to drive the driven member 52 to rotate, so that the shielding plate 51 rotates to expose the identification member 62, which is beneficial to improving the operation reliability of the emergency stop device.
[0057] It is worth mentioning that the elastic member 41 can be a spring, and the present application does not make specific limitations on this.
[0058] In some embodiments, referring to Figure 1 、 Figure 5 and Figure 7 , the emergency stop device further includes a protective cover 80. The protective cover 80 includes a first protective cover 81 and a second protective cover 82. The first protective cover 81 is arranged vertically relative to the first transmission rod 211, and the second protective cover 82 is arranged horizontally relative to the second transmission rod 231. Both ends of the second protective cover 82 are fixedly connected to the two first protective covers 81. The bottom of the fixed seat 32 is fixedly connected to the protective cover 80. The first transmission rod 211 and / or the second transmission rod 231 passes through the fixed seat 32, so that the axis of the first transmission rod 211 is vertically arranged, and the axis of the second transmission rod 231 coincides with the connection line of the commutation assembly 22 and the driven member 52.
[0059] In some embodiments, referring to Figure 5 , the first protective cover 81 includes an adjustment window 811 and a cover plate 812. The adjustment window 811 is opened on the back side of the first protective cover 81 opposite to the adjusting member 212, and the cover plate 812 is pivotally connected to the adjustment window 811. It can be understood that under the condition that the cover plate 812 is opened, the adjustment window 811 is adapted to expose the adjusting member 212, so as to facilitate the operation of the adjusting member 212 to adjust the rotation position of the shielding plate 51.
[0060] In some embodiments, referring to Figure 7 and Figure 8 , the commutation assembly 22 includes a commutation block 221 and a support 222. The commutation block 221 includes a first connection portion 2211, a hinge portion 2212, and a second connection portion 2213. The hinge portion 2212 is located in the middle of the commutation block 221. The commutation block 221 is rotatably connected to the support 222 through the hinge portion 2212. The first connection portion 2211 and the second connection portion 2213 are integrally formed by bending. The first connection portion 2211 is rotatably connected to the lower end of the first transmission rod 211. The emergency stop button assembly 10 is installed at the upper end of the first transmission rod 211. The second connection portion 2213 is rotatably connected to one end of the second transmission rod 231. The driven member 52 is rotatably installed at the other end of the second transmission rod 231. That is to say, through the commutation block 221 rotatably installed on the support 222, the axial movement of the first transmission rod 211 is converted into the axial movement of the second transmission rod 231. Further, through the eccentric connection between the second transmission rod 231 and the driven member 52, the movement of the second transmission rod 231 is converted into the rotation of the driven member 52 along the rotation axis 53, and then the shielding plate 51 is driven to rotate.
[0061] In at least one embodiment, referring to Figure 1 and Figure 2 , the linkage mechanism 20 includes two sets of first transmission components 21 and second transmission components 23, and the driven member 52 is in a long strip shape. Specifically, the upper ends of the two first transmission components 21 are respectively connected to an emergency stop button assembly 10. The two second transmission rods 231 are symmetrically connected to both ends of the driven member 52. The rotation axis 53 is hinged to the center of the driven member 52, so that the distances from the rotation axis 53 to the hinge points of the two second transmission rods 231 and the driven member 52 are the same, and then each first transmission component 21 and second transmission component 23 can drive the driven member 52 to rotate.
[0062] It can be understood that the linkage mechanism 20 may also include one or more first transmission components 21 and one or more second transmission components 23, and the present application does not make specific limitations thereto.
[0063] In some embodiments, referring to Figures 9 to 11, the shielding assembly 50 further includes a bearing seat 54 and a guide block 31. Specifically, the bearing seat 54 is installed on the second protective cover 82. The bearing seat 54 is adapted to support the rotation of the rotating shaft 53, which helps to avoid friction between the rotating shaft 53 and the second protective cover 82, thereby extending the service life of the rotating shaft 53 and the second protective cover 82. Moreover, it helps to make the rotation of the rotating shaft 53 smoother and improve the reliability of the emergency stop device operation. The guide block 31 is installed on the mounting seat 61. The rotating shaft 53 is adapted to pass through the guide block 31, and thus the guide block 31 can limit the rotating shaft 53, which helps to reduce the friction between the rotating shaft 53 and the mounting seat 61 and extend the service life of the rotating shaft 53 and the mounting seat 61.
[0064] In at least one embodiment, the guide block 31 is installed on the side of the mounting seat 61 facing the second protective cover 82. That is to say, the guide block 31 and the shielding plate 51 are respectively arranged on both sides of the mounting seat 61, which helps to make the mechanism of the emergency stop device more compact.
[0065] In at least one embodiment, the rotation angle of the driven member 52 and the shielding plate 51 is 90° ± 5°, so as to be adapted to completely expose or completely shield the identification member 62.
[0066] One or more embodiments of the present application also disclose a transport vehicle including the above-mentioned emergency stop device. In at least one embodiment, refer to Figure 3 , the transport vehicle has a vehicle bottom plate 71, and a through hole 72 is formed on the vehicle bottom plate 71. The through hole 72 is adapted to expose the identification member 62. Specifically, under the condition that the shielding plate 51 is in the shielding position, the identification member 62 is exposed through the through hole 72 for identification, and thus the transport vehicle can work normally; under the condition that the shielding plate 51 is in the exposed position, the shielding plate 51 is located between the identification member 62 and the through hole 72 to shield the identification member 62, and thus the transport vehicle stops working.
[0067] The above describes the basic principle, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements, and these changes and improvements all fall within the scope of the present application claimed. The scope of protection required by the present application is defined by the appended claims and their equivalents.
Claims
1. An emergency stop device, characterized in that, Comprising: An emergency stop button assembly; A linkage mechanism, the linkage mechanism includes a first transmission component, a commutation component and a second transmission component, the commutation component is rotatably connected to the first transmission component and the second transmission component, and the emergency stop button assembly is operably connected to the first transmission component; A shielding component, the shielding component includes a driven member and a shielding plate, the driven member is connected to the shielding plate, the driven member is rotatably connected to the second transmission component, and under the condition that the first transmission component drives the second transmission component through the commutation component to change the direction, the second transmission component drives the driven member to move, so that the shielding plate switches between a shielding position and an exposed position.
2. The emergency stop device according to claim 1, wherein The first transmission component includes a first transmission rod, the second transmission component includes a second transmission rod, the first transmission rod is arranged in the vertical direction, the second transmission rod is arranged in a direction intersecting the first transmission rod, and the first transmission rod and the second transmission rod are respectively hinged to both ends of the commutation component, so that the transmission direction can be changed between the first transmission rod and the second transmission rod.
3. The emergency stop device according to claim 2, wherein The first transmission component further includes an adjusting member, the adjusting member is adjustably mounted below the emergency stop button assembly along the first transmission rod, so as to adjust the pressing distance of the emergency stop button assembly, so that the rotation angle of the shielding plate is adjusted.
4. The emergency stop device according to claim 2, characterized in that, The linkage mechanism further includes at least one set of guiding components, the guiding components are respectively arranged along the first transmission rod and / or the second transmission rod, the guiding components include guiding blocks and a pair of fixed seats, the fixed seats are arranged at intervals, and the guiding blocks are adjacently mounted to one of the fixed seats.
5. The emergency stop device according to claim 4, characterized in that The linkage mechanism further includes at least one set of reset components, the reset components are mounted between the fixed seats of the first transmission rod and / or between the fixed seats of the second transmission rod, the reset components include elastic members and snap rings, the snap rings are close to the fixed seats where the guiding blocks are mounted, one end of the elastic member abuts against the fixed seat deviating from the guiding block, and the other end of the elastic member abuts against the snap ring. Under the condition that the emergency stop button assembly is reset, the first transmission rod and the second transmission rod are reset by the elastic member.
6. The emergency stop device according to claim 4, characterized in that, It further includes a protective cover, the protective cover includes a first protective cover and a second protective cover, the first protective cover is arranged in the vertical direction relative to the first transmission rod, the second protective cover is arranged in the horizontal direction relative to the second transmission rod, both ends of the second protective cover are fixedly connected to the two first protective covers respectively, the bottom of the fixed seat is fixedly connected to the protective cover, and the first transmission rod and / or the second transmission rod pass through the fixed seat.
7. The emergency stop device according to claim 6, wherein The first protective cover includes an adjustment window and a cover plate, the adjustment window is opened on the back side of the first protective cover opposite to the adjusting member of the first transmission component, and the cover plate is operably connected to the adjustment window.
8. The emergency stop device according to any one of claims 1-7, characterized in that, It further includes a mounting base and an identification member. The identification member is disposed on the back surface of the mounting base. The mounting base is located below the second transmission assembly. The driven member is connected to the mounting base, such that the shielding plate is rotatably disposed on the back surface of the mounting base relative to the identification member. Under the condition that the shielding plate rotates to the shielding position, the identification member is shielded by the shielding plate. Under the condition that the shielding plate rotates to the exposed position, the identification member is exposed and can be identified.
9. The emergency stop device according to any one of claims 1-7, characterized in that, The shielding assembly further includes a rotating shaft. The driven member and the shielding plate are respectively connected to two ends of the rotating shaft. Under the condition that the first transmission assembly drives the second transmission assembly by converting the direction through the direction conversion assembly, the second transmission assembly drives the driven member, and the driven member drives the shielding plate to rotate synchronously through the rotating shaft, such that the shielding plate switches between the shielding position and the exposed position.
10. The emergency stop device according to any one of claims 2-7, characterized in that, The direction conversion assembly includes a direction conversion block and a support. The direction conversion block includes a first connection portion, a hinged portion, and a second connection portion. The hinged portion is located in the middle of the direction conversion block. The direction conversion block is rotatably connected to the support through the hinged portion. The first connection portion and the second connection portion are integrally formed by bending. The first connection portion is rotatably connected to the lower end of the first transmission rod. The emergency stop button assembly is mounted on the upper end of the first transmission rod. The second connection portion is rotatably connected to one end of the second transmission rod. The driven member is rotatably mounted on the other end of the second transmission rod. Wherein, the two second transmission rods are respectively symmetrically connected to two ends of the driven member, and the rotation angles of the driven member and the shielding plate are 90°±5°.
11. A transporter, characterized in that, It includes an emergency stop device according to any one of claims 1-10.