Scram button assembly and transfer trolley thereof

Abstract

The embodiment of the utility model discloses a scram button assembly and a transfer trolley thereof. The scram button assembly comprises a control assembly. A control assembly; the control assembly is installed at the upper end of the ejector rod in a resettable mode, and a containing groove is formed in the lower end of the ejector rod; the at least one locking assembly is elastically mounted in the accommodating groove; the base is movably connected to the lower side of the ejector rod in a sleeving mode relative to the control assembly, the base comprises a connecting part and a limiting part, the connecting part is elastically connected to the control assembly, and the lower end of the ejector rod is suitable for being selectively locked to the limiting part through a locking assembly. The structure is simple, the transmission mode is reliable, response is rapid, and sudden stop self-locking and unlocking reset can be rapidly and conveniently carried out.

Description

Technical Field

[0001] The present application relates to the field of buttons, and in particular to an emergency stop button assembly and a transport vehicle thereof. Background Art

[0002] Emergency stop buttons are often used in medium and large equipment. In the event of an abnormality or dangerous emergency, pressing the emergency stop button can cut off the power supply. After troubleshooting, releasing the emergency stop button can restart the equipment.

[0003] However, in the related art, the emergency stop button usually does not have a locking structure. After being pressed, the button will rebound directly. If the equipment fault is not eliminated, it is easy for others to mistakenly reset the emergency stop button, causing the equipment to start and cause a safety accident. In addition, some emergency stop buttons that can achieve self-locking have a relatively complex overall structure, and the force to keep the button in a locked state is relatively small, which can easily cause the equipment to start suddenly due to accidental touch, posing a major safety hazard.

[0004] In addition, in the related art, factories usually use AGVs to carry shelves to transfer goods, which is conducive to improving the automation and production efficiency of the factory. However, when the AGV is running, if an emergency occurs, the staff needs to manually press the pause button on the AGV operation panel, and after the emergency is eliminated, the staff also needs to manually operate the AGV to resume operation. Therefore, it is impossible to quickly and effectively emergency brake and restart the AGV, which is easy to cause safety accidents. Summary of the invention

[0005] One or more embodiments of the present application provide an emergency stop button assembly to solve or at least partially alleviate the problem in the related art of accidental startup of a device due to mis-touching of an emergency stop button.

[0006] One or more embodiments of the present application provide a transfer vehicle having the above-mentioned emergency stop button assembly.

[0007] In a first aspect of the present application, an emergency stop button assembly is provided, which adopts the following technical solution:

[0008] An emergency stop button assembly comprises a control assembly; at least one push rod, the control assembly is resettably mounted on the upper end of the push rod, and the lower end of the push rod is provided with a receiving groove; at least one locking assembly, the locking assembly is elastically mounted in the receiving groove; a base, the base is movably sleeved on the lower side of the push rod relative to the control assembly, the base comprises a connecting portion and a limiting portion, the connecting portion is elastically connected to the control assembly, and the lower end of the push rod is suitable for being selectively locked to the limiting portion through the locking assembly.

[0009] In some embodiments, the limiting portion is provided with a accommodating cavity and at least one limiting platform, the accommodating cavity is suitable for accommodating the lower end of the push rod, the limiting platform protrudes from the inner cavity wall of the accommodating cavity toward the push rod, the limiting platform is provided with a stop protrusion, the stop protrusion expands and protrudes from one end of the limit platform toward the center of the accommodating cavity, and the lower end of the push rod can be rotatably abutted against or deviated from the stop protrusion.

[0010] In some embodiments, the locking assembly includes a lock buckle and a second return member, the second return member is installed in the receiving groove, and the lock buckle is elastically connected to the second return member so as to be extended or retracted from the receiving groove.

[0011] In some embodiments, the top rod includes a rod portion and a stop portion, the rod portion is suitable for passing through the connecting portion of the base, and the stop portion extends from the lower end of the rod portion toward the limiting portion of the base, and the control component can elastically drive the top rod to slide vertically and / or rotate horizontally.

[0012] In some embodiments, the limit platform is provided with a pair, and the limit platforms are expanded and protruded at intervals along the curved surface of the inner cavity wall of the accommodating cavity toward the center of the accommodating cavity, and the stop protrusion is relatively expanded and protruded, so that the stop portion of the push rod can be selectively locked to the stop protrusion of the limit platform; wherein, in the initial position, the stop portion of the push rod abuts against the stop protrusion, and the lock buckle is in a retracted state; when the push rod slides downward from the initial position to the locking position, the stop portion of the push rod abuts against the stop protrusion, and at the same time, the lock buckle extends outward and elastically abuts against the end face of the limit platform; when the push rod rotates from the locking position to the reset position, the stop portion of the push rod deviates from the stop protrusion until the lock buckle abuts against the inner cavity wall of the accommodating cavity between the limit platforms, and the push rod is driven to reset elastically through the control component.

[0013] In some embodiments, the limit platform is provided with a first stop surface, a second stop surface and a guide surface, the first stop surface and the second stop surface are respectively located on the inner and outer sides of the stop protrusion, the stop portion of the push rod rotates between the first stop surface of one of the limit platforms and the second stop surface of the other limit platform, the guide surface is located on the side of the limit platform, and the distance between the guide surface and the inner cavity wall gradually increases along the direction of the reset force of the control component, so as to guide the push rod to reset.

[0014] In some embodiments, the connecting portion of the base is provided with a guide hole, the guide hole is connected to the accommodating cavity, the spacing of the stop portion is larger than the guide hole, the guide hole is suitable for passing through the rod portion, and the stop portion of the top rod is provided with a contact surface and a stop surface, the stop surface is located on the side of the stop portion, and is able to abut against the first stop surface or the second stop surface, and in the initial position, the contact surface abuts against the bottom wall of the limiting portion.

[0015] In some embodiments, the control component includes an end cover, a mounting portion and a first reset member, the end cover is enlarged and located at the top of the mounting portion, the mounting portion is provided with an outer edge wall, a baffle, a positioning column and a mounting groove, the positioning column extends from the middle of the end cover toward the top rod, the positioning column is suitable for being plugged into the top rod, the baffle extends from the positioning column to the outer edge wall, the mounting groove is formed between the baffle and the outer edge wall, one end of the first reset member is installed in the mounting groove, and the other end is installed on the top of the base, so that the top rod can elastically movably connect the control component and the base.

[0016] In some embodiments, the first return member is a spring.

[0017] In a second aspect of the present application, a transfer vehicle is provided, which adopts the following technical solution:

[0018] A transfer vehicle comprises any of the above-mentioned emergency stop button assemblies.

[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] The connecting part of the top rod and the base cooperates so that the top rod is suitable for axial movement or axial rotation relative to the base. When the top rod is pressed, the locking assembly pops out from the receiving groove of the top rod, and then the locking assembly is locked with the limiting part of the base, so that the top rod is kept in the locked position, that is, the self-locking of the emergency stop button is achieved; further, when the top rod is kept in the locked position, the locking assembly is disengaged from the limiting part of the base by rotating the top rod, so that the top rod is reset, that is, the reset of the emergency stop button is achieved. The emergency stop button assembly has a simple structure, a reliable transmission method, and a quick response, which is conducive to quick and convenient emergency stop self-locking and unlocking and resetting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present application, rather than limiting the present application.

[0022] Figure 1It is a three-dimensional structural diagram of an emergency stop button assembly according to some embodiments of the present application.

[0023] Figure 2 An exploded view of an emergency stop button assembly according to some embodiments of the present application.

[0024] Figure 3 It is a side perspective structural diagram of the base of the emergency stop button assembly according to some embodiments of the present application.

[0025] Figure 4 It is a bottom three-dimensional structural diagram of the base of the emergency stop button assembly according to some embodiments of the present application.

[0026] Figure 5 It is a three-dimensional structural diagram of the top rod of the emergency stop button assembly according to some embodiments of the present application.

[0027] Figure 6 It is a cross-sectional view of a top rod of an emergency stop button assembly according to some embodiments of the present application.

[0028] Figure 7 It is a bottom three-dimensional structural diagram of the end cover of the emergency stop button assembly according to some embodiments of the present application.

[0029] Figure 8 It is a cross-sectional view of the emergency stop button assembly in the initial position according to some embodiments of the present application.

[0030] Fig. 9 The present invention is a bottom three-dimensional structural diagram of an emergency stop button assembly in an initial position according to some embodiments of the present application.

[0031] Fig.10 It is a schematic diagram of the emergency stop button assembly in the initial position according to some embodiments of the present application.

[0032] Fig.11 It is a cross-sectional view of the emergency stop button assembly in the locked position according to some embodiments of the present application.

[0033] Fig.12 It is a bottom stereoscopic structural diagram of the emergency stop button assembly in a locked position according to some embodiments of the present application.

[0034] Fig.13 It is a schematic diagram of the emergency stop button assembly in the locked position according to some embodiments of the present application.

[0035] Fig.14 It is a bottom stereoscopic structural diagram of the emergency stop button assembly in the reset position according to some embodiments of the present application.

[0036] Fig.15 It is a schematic diagram of the emergency stop button assembly in the reset position according to some embodiments of the present application.

[0037] Fig.16 It is a cross-sectional view of the emergency stop button assembly in the resetting process state according to some embodiments of the present application.

[0038] Fig.17 It is a bottom stereoscopic structural diagram of the emergency stop button assembly in the resetting process state according to some embodiments of the present application.

[0039] Fig.18 It is a schematic diagram of the coordination of the emergency stop button assembly in the reset process state according to some embodiments of the present application.

[0040] In the figure: 1, control component; 11, end cover; 12, mounting portion; 121, outer edge wall; 122, baffle; 123, mounting groove; 124, positioning column; 20, push rod; 21, rod; 211, fixing groove; 22, stop portion; 221, contact surface; 222, stop surface; 223, accommodating groove; 30, first reset member; 2, locking component; 40, lock; 41, cavity; 50, second reset member; 3, base; 60, connecting portion; 61, guide hole; 62, spring groove; 63, groove wall; 631, bayonet; 70, limiting portion; 71, accommodating cavity; 72, inner cavity wall; 73, bottom wall; 74, limiting platform; 741, stop convex portion; 742, first stop surface; 743, second stop surface; 744, guide surface; 745, end surface; 80, flange portion. DETAILED DESCRIPTION

[0041] In order to make the purpose, 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 in conjunction with the accompanying drawings showing multiple embodiments of the present application. It should be understood that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments described in the present application, all other embodiments obtained by ordinary technicians in this field without spending creative work will fall within the scope of protection of the present application.

[0042] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those generally understood by technicians in the technical field of this application; the terms used in the specification of the application are only for the purpose of describing specific implementation methods, and are not intended to limit this application; the terms "including", "comprising", "having", "having", "containing", "including", etc. in the specification and claims of this application and the above-mentioned figure description are open-ended words. Therefore, "including", "comprising", "having" is a method or device with one or more steps or elements, for example, which has one or more steps or elements, but is not limited to having only these one or more elements. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned figures are used to distinguish different objects, rather than to describe a specific order or a primary and 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 technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, the meaning of "multiple" is two or more.

[0043] In the description of the present application, it should be understood that the terms "center", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] Figure 1 Schematic diagram of an emergency stop button assembly according to some embodiments of the present application.

[0045] One or more embodiments of the present application disclose an emergency stop button assembly. Figure 2 The emergency stop button assembly includes a control assembly 1, at least one push rod 20, at least one locking assembly 2 and a base 3. The control assembly 1 is resettably mounted on the upper end of the push rod 20, the lower end of the push rod 20 is provided with a receiving groove 223, and the locking assembly 2 is elastically mounted in the receiving groove 223. The base 3 is movably sleeved on the lower side of the push rod 20 relative to the control assembly 1, and the base 3 includes a connecting portion 60 and a limiting portion 70, the connecting portion 60 is elastically connected to the control assembly 1, and the lower end of the push rod 20 is suitable for selectively locking to the limiting portion 70 through the locking assembly 2.

[0046] It is understandable that the push rod 20 cooperates with the connecting portion 60 of the base 3 so that the push rod 20 is suitable for moving along the axial direction of the push rod 20 or rotating around the axial direction of the push rod 20 relative to the base 3. When the push rod 20 is pressed, the locking assembly 2 pops out from the receiving groove 223 of the push rod 20, and then the locking assembly 2 is engaged with the limiting portion 70 of the base 3, so that the push rod 20 is kept in the locked position, that is, the self-locking of the emergency stop button is achieved; further, when the push rod 20 remains in the locked position, the locking assembly 2 is disengaged from the limiting portion 70 of the base 3 by rotating the push rod 20, so that the push rod 20 is reset, that is, the reset of the emergency stop button is achieved. The emergency stop button assembly has a simple structure, a reliable transmission method, and a quick response, which is conducive to quick and convenient emergency stop self-locking and unlocking and resetting.

[0047] In at least one embodiment, the emergency stop button assembly has a locking assembly 2, which can reduce the number of parts while ensuring that the locking assembly 2 can keep the push rod 20 in the locked position, thereby helping to reduce costs.

[0048] In at least one embodiment, the emergency stop button assembly has two locking assemblies 2, and two receiving grooves 223 are provided at the lower end of the top rod 20. Furthermore, the extension directions of the two receiving grooves 223 are located on the same straight line, and the opening directions of the receiving grooves 223 are arranged opposite to each other. Under the condition that the locking assembly 2 and the limiting portion 70 of the base 3 are buckled, the force on the top rod 20 can be made more uniform, and it is helpful to improve the reliability of the emergency stop button assembly to remain in the locked position, and improve the safety of the emergency stop button assembly when in use. In addition, compared with the provision of three or more locking assemblies 2, this embodiment can reduce the number of receiving grooves 223 provided at the lower end of the top rod 20, which is helpful to avoid excessive reduction of the structural strength of the top rod 20 due to the provision of the receiving grooves 223.

[0049] It is worth mentioning that the emergency stop button assembly may also have three or more locking assemblies 2, and the lower end of the top rod 20 may also be provided with three or more accommodating grooves 223. The number of accommodating grooves 223 may be equal to or greater than the number of locking assemblies 2, and this application does not impose any specific restrictions on this.

[0050] In at least one embodiment, the base 3 further includes a flange portion 80, and the flange portion 80 is suitable for being fixed to a control panel, a machine tool panel, etc., so that the emergency stop button assembly is fixedly installed on the equipment.

[0051] In some embodiments, reference Figure 5 and Figure 6The top rod 20 includes a rod portion 21 and a stop portion 22, and the rod portion 21 is suitable for passing through the connecting portion 60 of the base 3. The stop portion 22 extends from the lower end of the rod portion 21 toward the limiting portion 70 of the base 3, and can elastically drive the top rod 20 to slide vertically and / or rotate horizontally through the control assembly 1. In at least one embodiment, the accommodating groove 223 is opened in the stop portion 22 of the top rod 20.

[0052] Specifically, refer to Figure 3 and Figure 4 The connecting portion 60 of the base 3 is provided with a guide hole 61, and the rod portion 21 is suitable for passing through the guide hole 61, so that the rod portion 21 moves relative to the base 3 along the axial direction of the top rod 20 or rotates around the axial direction of the top rod 20. Further, the upper end of the rod portion 21 is connected to the control assembly 1, and the lower end of the rod portion 21 is connected to the stop portion 22, and the stop portion 22 is suitable for cooperating with the limit portion 70 of the base 3 to achieve the emergency stop self-locking and unlocking reset of the emergency stop button assembly.

[0053] Further, see Figure 4 The limiting portion 70 is provided with a receiving cavity 71 and at least one limiting platform 74. The receiving cavity 71 is connected to the guide hole 61. The receiving cavity 71 is suitable for receiving the lower end of the ejector 20, that is, the receiving cavity 71 is suitable for receiving the stop portion 22. The limiting platform 74 protrudes from the inner cavity wall 72 of the receiving cavity 71 toward the ejector 20. The limiting platform 74 is provided with a stop convex portion 741. The stop convex portion 741 expands and protrudes from one end of the limiting platform 74 toward the center of the receiving cavity 71. The lower end of the ejector 20 can rotatably abut against or deviate from the stop convex portion 741, that is, the stop portion 22 can rotatably abut against or deviate from the stop convex portion 741. It can be understood that the rotation angle of the ejector 20 can be positioned by the abutment between the stop convex portion 741 and the stop portion 22, which is conducive to improving the repeatability of the operation of the ejector 20 rotating relative to the base 3. Among them, the center of the receiving cavity 71 is the area close to the axis of the receiving cavity 71.

[0054] In some embodiments, the spacing of the stop portion 22 is greater than the guide hole 61, and the guide hole 61 is suitable for passing through the rod portion 21. The stop portion 22 of the top rod 20 is provided with a contact surface 221. In the initial position, the contact surface 221 abuts against the bottom wall 73 of the limiting portion 70. It can be understood that the top rod 20 can be positioned in the vertical direction by abutting against the contact surface 221 and the bottom wall 73, so that the stop portion 22 is maintained in the accommodating cavity 71.

[0055] In some embodiments, reference Figure 8The locking assembly 2 includes a lock catch 40 and a second reset member 50. The second reset member 50 is installed in the receiving groove 223. The lock catch 40 is elastically connected to the second reset member 50, and the lock catch 40 can be extended or retracted from the receiving groove 223. In other words, through the second reset member 50, the lock catch 40 can be retracted to be accommodated in the receiving groove 223 of the top rod 20, so that the lock catch 40 is suitable for extending out of the receiving groove 223 and locking against the limit platform 74 to achieve self-locking of the emergency stop button; and the lock catch 40 is suitable for retracting into the receiving groove 223 to achieve unlocking of the emergency stop button.

[0056] In at least one embodiment, the second reset member 50 is a spring, and the lock catch 40 has a cavity 41. Specifically, the lock catch 40 is accommodated in the accommodating groove 223, and the spring is accommodated in the cavity 41, and one end of the spring abuts against the groove wall of the accommodating groove 223, and the other end abuts against the wall of the cavity 41, thereby making the matching structure of the locking assembly 2 and the push rod 20 more compact, which is conducive to reducing the volume of the emergency stop button assembly.

[0057] In some embodiments, reference Figure 8 The limiting platform 74 is provided with a pair, and the limiting platform 74 is enlarged and protruded along the curved surface of the inner cavity wall 72 of the accommodating cavity 71 at intervals toward the center of the accommodating cavity 71, and the stop convex portion 741 is relatively enlarged and protruded, that is, compared with other parts of the limiting platform 74, the stop convex portion 741 is further enlarged and protruded toward the center of the accommodating cavity 71, and is closer to the center of the accommodating cavity 71, so that the stop portion 22 of the push rod 20 can be selectively locked to the stop convex portion 741 of the limiting platform 74. Further, a pair of locking components 2 are provided on opposite sides of the stop portion 22 of the push rod 20, and the two locking components 2 are provided with accommodating grooves 223 extending in opposite directions to respectively cooperate with the limiting platform 74.

[0058] Specifically, refer to Figures 8 to 10 In the initial position, the stop portion 22 of the push rod 20 abuts against the stop convex portion 741, and the lock buckle 40 is in a retracted state. Figures 11 to 13 When the push rod 20 slides downward from the initial position to the locked position, the stop portion 22 of the push rod 20 abuts against the stop convex portion 741, and at the same time, the lock catch 40 extends outward and elastically abuts against the end surface 745 of the limit platform 74 to limit the push rod 20 in the vertical direction, thereby realizing the self-locking of the emergency stop button. Fig.14 and Fig.15 When the push rod 20 rotates from the locked position to the reset position, the stop portion 22 of the push rod 20 deviates from the stop protrusion 741 until the lock buckle 40 abuts against the inner cavity wall 72 between the limit platforms 74, so that the lock buckle 40 is separated from the end surface 745 of the limit platform 74, and then the push rod 20 is elastically reset through the control component 1 to unlock the emergency stop button.

[0059] In at least one implementation, referring to Figure 4 The limit platform 74 is provided with a first stop surface 742, a second stop surface 743 and a guide surface 744. The first stop surface 742 and the second stop surface 743 are respectively located on the inner side and the outer side of the stop protrusion 741. The stop portion 22 of the push rod 20 rotates between the first stop surface 742 of one of the limit platforms 74 and the second stop surface 743 of the other limit platform 74. The guide surface 744 is located on the side of the limit platform 74. The distance between the guide surface 744 and the inner cavity wall 72 of the accommodating cavity 71 gradually increases along the reset force direction of the control component 1, so as to guide the push rod 20 to reset.

[0060] Specifically, refer to Fig.10 The stop portion 22 of the ejector 20 is further provided with a stop surface 222, which is located on the side of the stop portion 22 and is able to abut against the first stop surface 742 or the second stop surface 743. It can be understood that, through the cooperation of the stop surfaces 222 located on both sides of the stop portion 22 and the first stop surfaces 742 and the second stop surfaces 743 of the two limit platforms 74, the rotation angle of the stop portion 22 can be limited, which is conducive to improving the repeatability of the operation of pressing the ejector 20 and rotating the ejector 20. In addition, the distance between the guide surface 744 and the inner cavity wall 72 gradually increases along the reset force direction of the control component 1, which is conducive to guiding and squeezing the lock buckle 40 to shrink into the accommodating groove 223.

[0061] In some embodiments, reference Figure 7 The control assembly 1 includes an end cover 11, a mounting portion 12 and a first reset member 30. The end cover 11 is enlarged and located at the top of the mounting portion 12. The mounting portion 12 is provided with an outer edge wall 121, a baffle 122, a positioning column 124 and a mounting groove 123. The positioning column 124 extends from the middle of the end cover 11 to the top rod 20. The positioning column 124 is suitable for plugging with the top rod 20, so that the top rod 20 and the control assembly 1 can rotate and move synchronously. The baffle 122 extends from the positioning column 124 to the outer edge wall 121, and the mounting groove 123 is formed between the baffle 122 and the outer edge wall 121. Further, one end of the first reset member 30 is installed in the mounting groove 123, and the other end is installed on the top of the base 3, so that the top rod 20 can be elastically movably connected to the control assembly 1 and the base 3. It is worth mentioning that the first reset member 30 can provide a reset force that allows the control assembly 1 and the base 3 to move in a direction away from each other, and can also provide a reset force that allows the control assembly 1 to rotate relative to the base 3.

[0062] It is worth mentioning that the top rod 20 can be fixedly connected to the mounting portion 12, or can be detachably connected to the mounting portion 12, and the present application does not impose specific restrictions on this. In at least one embodiment, the top rod 20 is detachably connected to the mounting portion 12 by a fastener. In at least one other embodiment, the top rod 20 is bonded to the mounting portion 12.

[0063] In at least one embodiment, the upper end of the rod 21 is provided with a fixing groove 211, suitable for plugging with the positioning column 124 of the end cover 11. It is understandable that the positioning column 124 can also be provided at the upper end of the rod 21, and the fixing groove 211 can be provided on the end cover 11; the rod 21 and the positioning column 124 can also be connected by bonding, fastening or other methods, and the present application does not make specific restrictions on this.

[0064] In some embodiments, reference Figure 8 , the first reset member 30 is a spring. Further, the connection portion 60 of the base 3 is further provided with a spring groove 62, one end of the spring is accommodated in the spring groove 62, and the other end of the spring is accommodated in the mounting groove 123 of the mounting portion 12, so that the spring is fixedly clamped between the end cover 11 and the base 3. Specifically, refer to Figure 3 and Figure 8 At least one bayonet 631 is provided on the groove wall 63 of the spring groove 62, one end of the spring is suitable for being clamped in the bayonet 631, and the other end of the spring is suitable for being abutted against the baffle 122 of the mounting portion 12, so that the spring has a pre-compression force and a pre-torsion force, and thus the spring can provide a restoring force that causes the control component 1 and the base 3 to move in a direction away from each other, and can also provide a restoring force that causes the control component 1 to rotate relative to the base 3.

[0065] In at least one embodiment, the specific use process of the emergency stop button assembly is as follows:

[0066] Under the initial position condition, refer to Figures 8 to 10 Under the action of the restoring force of the first restoring member 30, the contact surface 221 of the stop portion 22 of the push rod 20 abuts against the bottom wall 73 of the limiting portion 70 of the base 3, and the two stop surfaces 222 respectively abut against the first stop surface 742 of the limiting platform 74. Further, the lock buckle 40 abuts against the guide surface 744 to retract the lock buckle 40 into the accommodating groove 223.

[0067] Under the condition that the push rod 20 is moved from the initial position to the locking position by external force, Figures 11 to 13 Under the action of the restoring force of the first restoring member 30, the two stop surfaces 222 of the stop portion 22 respectively abut against the first stop surface 742 of the limiting platform 74. At the same time, under the action of the second restoring member 50, the lock catch 40 extends outward and elastically abuts against the end surface 745 of the limiting platform 74 to limit the push rod 20 in the vertical direction, thereby realizing the self-locking of the emergency stop button. It can be understood that the friction between the lock catch 40 and the end surface 745 can overcome the restoring force of the first restoring member 30, so that the emergency stop button remains in the self-locking state.

[0068] Under the condition that the push rod 20 is rotated from the locking position to the reset position by external force, Fig.14 and Fig.15The control assembly 1 is rotated by external force to overcome the restoring force of the first restoring member 30, so that the two stop surfaces 222 of the stop portion 22 are separated from the first stop surface 742 of the limit platform 74 respectively, until the other stop surface 222 abuts against the second stop surface 743 of the limit platform 74 respectively, and at the same time, the lock buckle 40 is separated from the end surface 745 of the limit platform 74, thereby unlocking the emergency stop button.

[0069] Under the condition that the push rod 20 moves from the reset position to the initial position. Figures 16 to 18 , the external force is removed, and the push rod 20 rotates and moves upward under the restoring force of the first restoring member 30, so that the two stop surfaces 222 of the stop portion 22 are respectively separated from the second stop surface 743 of the limit platform 74. At the same time, the guide surface 744 is able to overcome the resistance of the second restoring member 50, so that the lock buckle 40 assembly retracts into the accommodating groove 223 until the two stop surfaces 222 are respectively abutted against the first stop surface 742 of the limit platform 74.

[0070] One or more embodiments of the present application further disclose a transfer vehicle, the transfer vehicle comprising any of the above emergency stop button assemblies. In at least one embodiment, the emergency stop button assembly is installed on the side of the handlebar of the transfer vehicle, so that in the event of an emergency, the emergency stop button can be pressed in time to stop the transfer vehicle, which is beneficial to improving the safety of the transfer vehicle during transportation.

[0071] The above describes the basic principles, 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, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. An emergency stop button assembly, characterized in that: include: Control components; At least one push rod, the control assembly is mounted on the upper end of the push rod in a resettable manner, and a receiving groove is provided at the lower end of the push rod; at least one locking assembly, wherein the locking assembly is elastically mounted in the receiving groove; A base, wherein the base is movably sleeved on the lower side of the push rod relative to the control assembly, the base comprises a connecting portion and a limiting portion, the connecting portion is elastically connected to the control assembly, and the lower end of the push rod is suitable for being selectively locked to the limiting portion through the locking assembly.

2. The emergency stop button assembly according to claim 1, characterized in that: The limiting portion is provided with a accommodating cavity and at least one limiting platform, the accommodating cavity is suitable for accommodating the lower end of the push rod, the limiting platform protrudes from the inner cavity wall of the accommodating cavity toward the push rod, the limiting platform is provided with a stop protrusion, the stop protrusion expands and protrudes from one end of the limit platform toward the center of the accommodating cavity, and the lower end of the push rod can be rotatably abutted against or deviated from the stop protrusion.

3. The emergency stop button assembly according to claim 2, characterized in that: The locking assembly includes a lock buckle and a second reset member, wherein the second reset member is installed in the receiving groove, and the lock buckle is elastically connected to the second reset member so as to be extended out of or retracted from the receiving groove.

4. The emergency stop button assembly according to claim 3, characterized in that: The push rod includes a rod portion and a stop portion, the rod portion is suitable for passing through the connecting portion of the base, and the stop portion extends from the lower end of the rod portion toward the limiting portion of the base. The control component can elastically drive the push rod to slide vertically and / or rotate horizontally.

5. The emergency stop button assembly according to claim 4, characterized in that: The limit platform is provided with a pair, and the limit platform is expanded and protruded at intervals along the curved surface of the inner cavity wall of the accommodating cavity toward the center of the accommodating cavity, and the stop convex portion is relatively expanded and protruded, so that the stop portion of the push rod can be selectively locked on the stop convex portion of the limit platform; wherein, in the initial position, the stop portion of the push rod abuts against the stop convex portion, and the lock buckle is in a retracted state; when the push rod slides downward from the initial position to the locking position, the stop portion of the push rod abuts against the stop convex portion, and at the same time, the lock buckle extends outward and elastically abuts against the end surface of the limit platform; when the push rod rotates from the locking position to the reset position, the stop portion of the push rod deviates from the stop convex portion until the lock buckle abuts against the inner cavity wall of the accommodating cavity between the limit platforms, and the push rod is elastically reset through the control component.

6. The emergency stop button assembly according to claim 4, characterized in that: The limit platform is provided with a first stop surface, a second stop surface and a guide surface, the first stop surface and the second stop surface are respectively located on the inner side and the outer side of the stop protrusion, the stop portion of the push rod rotates between the first stop surface of one of the limit platforms and the second stop surface of the other limit platform, the guide surface is located on the side of the limit platform, and the distance between the guide surface and the inner cavity wall of the accommodating cavity gradually increases along the reset force direction of the control component, so as to guide the push rod to reset.

7. The emergency stop button assembly according to claim 6, characterized in that: The connecting portion of the base is provided with a guide hole, and the guide hole is connected to the accommodating cavity. The spacing of the stop portion is larger than the guide hole, and the guide hole is suitable for passing through the rod portion. The stop portion of the top rod is provided with a contact surface and a stop surface. The stop surface is located on the side of the stop portion and is able to abut against the first stop surface or the second stop surface. In the initial position, the contact surface abuts against the bottom wall of the limiting portion.

8. The emergency stop button assembly according to any one of claims 4 to 7, characterized in that: The control component includes an end cover, a mounting portion and a first reset member, the end cover is enlarged and located at the top of the mounting portion, the mounting portion is provided with an outer edge wall, a baffle, a positioning column and a mounting groove, the positioning column extends from the middle of the end cover to the top rod, the positioning column is suitable for being plugged into the top rod, the baffle extends from the positioning column to the outer edge wall, the mounting groove is formed between the baffle and the outer edge wall, one end of the first reset member is installed in the mounting groove, and the other end is installed on the top of the base, so that the top rod can elastically movably connect the control component and the base.

9. The emergency stop button assembly according to claim 8, characterized in that: The first restoring member is a spring.

10. A transfer vehicle, characterized in that: The invention comprises an emergency stop button assembly as described in any one of claims 1 to 9.

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