Rocker assembly, lifting device and circuit board testing apparatus

Abstract

The embodiment of the application provides a rocker assembly, a lifting device and a circuit board testing device, and relates to the technical field of lifting devices. The rocker assembly comprises a fixing base, a driving shaft, a rocker, a sliding rod, an elastic piece, a locking pin, a ratchet wheel and a pawl. The rocker is rotationally connected with the fixing base through the driving shaft, and the driving shaft is used for transmission connection with a lifting component. The sliding rod is slidingly connected with the rocker, and the locking pin is connected with the sliding rod. The fixing base is provided with a sliding groove, and part of the locking pin is located in the sliding groove. The sliding groove comprises an arc track section and a locking section. The locking section is connected with a first position of the arc track section and located on the side of the radial direction of the arc track section. The elastic piece is arranged between the sliding rod and the rocker and is used for sliding the locking pin from the first position into the locking section when the locking pin slides to the first position. The ratchet wheel is fixedly connected with the fixing base, the pawl is connected with the locking pin, the pawl abuts against the ratchet wheel, and the locking pin is located in the locking section, and the pawl is inserted into the tooth groove of the ratchet wheel. In this way, the lifting component has better safety after being lifted up.

Description

Technical Field

[0001] This application relates to the field of lifting device technology, and in particular to a rocker assembly, a lifting device, and a circuit board testing device. Background Technology

[0002] Lifting devices can be widely used in scenarios such as circuit board testing and lifting heavy objects. The lifting device includes a lifting component, which can be used to support circuit boards, heavy objects, and other items. By using the lifting component to move the supported objects up and down, functions such as circuit board testing and lifting heavy objects can be achieved.

[0003] However, once raised, lifting components are prone to falling due to vibration, impact, or loss of driving force, which can easily cause injury to people and objects. Therefore, improving the safety of lifting components after they are raised has become an urgent problem to be solved in the field of lifting device design. Summary of the Invention

[0004] This application provides a rocker assembly, a lifting device, and a circuit board testing equipment, which can ensure good safety after the lifting component is raised.

[0005] In a first aspect, embodiments of this application provide a rocker assembly, which includes a fixed base, a drive shaft, a rocker arm, a slide bar, a first elastic element, a locking pin, a ratchet, and a pawl.

[0006] The rocker arm is rotatably connected to the fixed base via a drive shaft. The slide rod is sleeved inside the rocker arm and slidably connected to it. The locking pin is connected to the slide rod. The drive shaft is used for transmission connection with the lifting component.

[0007] The mounting base has a groove, within which a locking pin is located. The groove includes an arc-shaped track segment and a first locking segment. The arc-shaped track segment allows the locking pin to slide during the lifting and lowering of the lifting component. When the lifting component rises to the raised position, the locking pin slides to the first position of the arc-shaped track segment. When the lifting component descends to the lowered position, the locking pin slides to the second position of the arc-shaped track segment. The first locking segment is connected to the first position of the arc-shaped track segment and is located radially to the side of the arc-shaped track segment.

[0008] A first elastic element is disposed between the slide rod and the rocker arm. The first elastic element is used to drive the locking pin from the first position into the first locking section via the slide rod when the locking pin slides to the first position of the arc-shaped trajectory segment. The first locking section is used to prevent the locking pin from moving towards the second position of the arc-shaped trajectory segment.

[0009] The ratchet is fixedly connected to the fixed base, and the pawl is connected to the locking pin, with the pawl abutting against the ratchet. When the locking pin is in the first locking section, the pawl is inserted into the tooth groove of the ratchet. The pawl inserted into the tooth groove of the ratchet prevents the locking pin from moving in the direction from the first position of the arc-shaped trajectory segment to the second position of the arc-shaped trajectory segment.

[0010] After the lifting component rises and the external force used to drive or hold it up disappears, the lifting component tends to descend under the weight of itself and the objects mounted and supported on it. At this time, the lifting component applies a force F1 to the locking pin via the drive shaft and rocker arm, causing the locking pin to tend to move towards the second position of the arc-shaped trajectory segment.

[0011] The rocker assembly provided in this application embodiment, by setting a first locking section and allowing the locking pin to slide into the first locking section when it slides to the first position of the arc-shaped trajectory segment, causes the groove wall of the first locking section to apply a reaction force F2 to the locking pin sliding into the first locking section under the action of F1, thereby preventing the locking pin from moving towards the second position of the arc-shaped trajectory segment. By setting a ratchet and a pawl, and having the pawl inserted into the tooth groove of the ratchet when the locking pin is in the first locking section, the ratchet, through the pawl, applies a reaction force F3 to the locking pin under the action of F1, thereby preventing the locking pin from moving towards the second position of the arc-shaped trajectory segment and preventing the locking pin from sliding from the first locking section into the arc-shaped trajectory segment. This makes the lifting component in the raised position less likely to fall, and the lifting component in the raised position has better safety.

[0012] When the locking pin is in the first locking section, the pawl is inserted into the tooth groove of the ratchet, making the reaction force F3 exerted by the ratchet on the locking pin through the pawl relatively stable. Under the action of F3, the locking pin is less likely to slide from the first locking section into the arc-shaped trajectory section, making the reaction force F2 exerted by the groove wall of the first locking section on the locking pin relatively stable. Thus, the resultant force formed by the reaction force F2 exerted by the groove wall of the first locking section on the locking pin and the reaction force F3 exerted by the ratchet on the locking pin through the pawl can reliably and stably counteract the weight of the lifting component and the objects mounted and supported on it, which is beneficial for reliably locking the lifting component in the raised position, making it less likely for the lifting component in the raised position to fall, and thus improving the safety of the lifting component in the raised position. By sharing the burden of F1 with F2 and F3, F2 and F3 can be made smaller, making the rocker assembly less prone to damage. This ensures higher reliability in locking the lifting component in the raised position, and the lifting component in the raised position is less likely to fall due to locking failure, thus improving the safety of the lifting component in the raised position.

[0013] In addition, the cooperation of the first elastic element, ratchet and pawl facilitates the self-locking of the lifting component during the lifting process, making it less likely for the lifting component to fall due to the loss of driving force, and thus ensuring good safety of the lifting component during the lifting process.

[0014] In addition, through the action of the first elastic element, as well as the ratchet and pawl, the locking pin located in the first locking section is not easy to automatically slide into the arc-shaped trajectory section, which helps to prevent fooling when the lifting component is locked in the raised position.

[0015] For example, the rocker arm, slide bar, latch, and drive shaft rotate synchronously about the axis of the drive shaft.

[0016] For example, the slide bar is used to drive the locking pin to move radially along an arc-shaped trajectory segment.

[0017] In some possible implementations, the pawl is connected to a locking pin via a second elastic element, which is used to press the pawl against the ratchet.

[0018] This ensures a secure connection between the pawl and the ratchet, resulting in a more stable reaction force exerted by the ratchet on the locking pin through the pawl. This facilitates reliable and stable locking of the locking pin and rocker arm, thereby improving the safety of the lifting components after they are raised.

[0019] In some possible implementations, the locking pin includes a first straight shaft segment, a second straight shaft segment, and a connecting segment. The first straight shaft segment and the second straight shaft segment are not coaxial, are parallel to each other, and are fixedly connected by the connecting segment.

[0020] The first straight shaft segment is rotatably connected to the slide rod, allowing the second straight shaft segment to swing about the first straight shaft segment, with at least a portion of the second straight shaft segment located within the slide groove.

[0021] The curved trajectory segment is used to allow the second straight shaft segment to slide during the lifting and lowering process of the lifting component. When the lifting component rises to the raised position, the second straight shaft segment slides to the first position of the curved trajectory segment. When the lifting component descends to the lowering position, the second straight shaft segment slides to the second position of the curved trajectory segment.

[0022] The first elastic element is used to drive the first straight shaft segment to move radially along the arc track segment via a slide rod when the second straight shaft segment slides to the first position of the arc track segment, so that the second straight shaft segment slides from the first position into the first locking segment.

[0023] The pawl is connected to the second straight shaft section. When the second straight shaft section is in the first locking section, the pawl is inserted into the tooth groove of the ratchet.

[0024] Thus, the locking pin includes a first straight shaft segment and a second straight shaft segment that are parallel and not on the same axis, and the first and second straight shaft segments are connected by a connecting segment, making the locking pin bend. The bend shape of the locking pin also allows for a larger contact area between the locking pin and the rocker arm, which reduces stress concentration, lowers the risk of locking pin damage, and facilitates reliable locking of the lifting components.

[0025] Additionally, the pawl is connected to the second straight shaft section, which can swing around the first straight shaft section, allowing the locking pin to flip and thus facilitating the pawl's movement. When the slide rod moves the locking pin away from the drive shaft, the first straight shaft section rotates to the side of the second straight shaft section away from the drive shaft, allowing the pawl to insert into the ratchet's tooth groove, thereby achieving self-locking of the locking pin and the rocker arm. When the slide rod moves the locking pin towards the drive shaft, the first straight shaft section rotates relative to the second straight shaft section towards the drive shaft, allowing the pawl to rotate out of the ratchet's tooth groove, enabling the locking pin to slide along an arc-shaped trajectory. By swinging the second straight shaft section around the first straight shaft section, the pawl can quickly switch between being inserted into the ratchet's tooth groove and being outside the ratchet's tooth groove, facilitating rapid self-locking of the locking pin and the rocker arm.

[0026] Furthermore, the first straight shaft segment is rotatably connected to the slide rod, and the rocker arm, slide rod, and locking pin rotate synchronously around the drive shaft via the first straight shaft segment. The pawl is connected to the second straight shaft segment and swings around the first straight shaft segment. When the first straight shaft segment rotates to the side of the second straight shaft segment away from the drive shaft, the force-bearing position of the locking pin is located on the axis of the second straight shaft segment away from the drive shaft. This allows for a smaller gap between the pawl and the ratchet, and a larger gap between the force-bearing position of the locking pin and the drive shaft. This makes it easier to self-lock the locking pin and rocker arm by inserting the pawl into the groove of the ratchet, while reducing the force acting on the locking pin, thus reducing the risk of locking pin damage and reliably locking the lifting component in the raised position.

[0027] For example, the slide bar is used to drive the first straight shaft segment to move radially along the arc-shaped trajectory segment, so as to drive the second straight shaft segment to move through the first straight shaft segment.

[0028] In some possible implementations, the rocker arm has a strip-shaped connecting hole, within which a portion of a first straight shaft segment is located. The connecting hole allows the first straight shaft segment to move radially along an arcuate trajectory segment. The first straight shaft segment abuts against the wall of the connecting hole to allow the rocker arm and slide bar to rotate synchronously about the axis of the drive shaft.

[0029] This allows for a larger force-bearing surface on the first straight shaft section, which facilitates stable assembly and contact between the first straight shaft section and the rocker arm and slide bar. This, in turn, facilitates stable contact between the pawl and ratchet connected by the locking pin, making the locking of the locking pin and rocker arm more reliable and stable.

[0030] In some possible implementations, the surface of the rocker arm has a clearance groove. A connecting hole is provided at the bottom of the clearance groove, such that the connecting hole communicates with the space outside the rocker arm through the clearance groove, and the edge of the connecting hole is spaced apart from the edge of the bottom of the clearance groove. At least a portion of the connecting section is located within the clearance groove, which is used to allow the connecting section and the second straight shaft section to swing about the first straight shaft section.

[0031] This facilitates the flipping of the locking pin, making its movement less prone to jamming.

[0032] In some possible implementations, the arcuate track segment has a first groove wall and a second groove wall that are radially opposite each other along the arcuate track segment, and a first locking segment is connected to the first groove wall. The distance between the first groove wall and the second groove wall along the radial direction of the arcuate track segment is greater than the size of the portion of the pin located within the groove. When the pin contacts the first groove wall, the pawl is inserted into the tooth groove of the ratchet. When the pin contacts the second groove wall, the pawl is located outside the tooth groove of the ratchet.

[0033] Thus, when it is necessary for the locking pin to slide along the arc-shaped trajectory segment, the sliding rod can press the locking pin to the position contacting the second groove wall, so that the pawl is located outside the tooth groove of the ratchet. The locking pin can slide smoothly along the arc-shaped trajectory segment, which is conducive to the smooth lifting and lowering of the lifting component. Under the action of the elastic restoring force of the first elastic element, when the sliding rod presses the locking pin to the position contacting the first groove wall, the pawl is inserted into the tooth groove of the ratchet, which is conducive to the follow-up self-locking of the locking pin and the rocker arm during the lifting and lowering process of the lifting component, so as to perform follow-up self-locking of the lifting component.

[0034] In some possible implementations, the mounting base includes a first fixing part and a second fixing part that are opposite to and spaced apart. A rocker arm, a slide bar, a ratchet, and a pawl are disposed between the first fixing part and the second fixing part, and a drive shaft is rotatably connected to at least one of the first fixing part and the second fixing part.

[0035] Both the first fixing part and the second fixing part have a sliding groove. The sliding groove of the first fixing part and the sliding groove of the second fixing part are arranged opposite to each other. Part of the locking pin is located in the sliding groove of the first fixing part and part is located in the sliding groove of the second fixing part.

[0036] At least one of the first and second fixing parts is fixedly connected to a ratchet, and a pawl corresponding to each ratchet is connected to a locking pin. The pawl is used to abut against the corresponding ratchet. When the locking pin is in the first locking section, the pawl is inserted into the tooth groove of the corresponding ratchet.

[0037] In this way, the assembly and contact between the locking pin and the fixed seat are more stable, which makes the reaction force exerted by the groove wall on the locking pin more stable. Moreover, the action surface between the locking pin and the groove wall is larger, which is conducive to the stable and reliable movement of the locking pin and the fixed seat, as well as the stable and reliable locking of the locking pin and the rocker arm.

[0038] In some possible implementations, the rocker assembly further includes a first locking member disposed on a fixed base. When the first locking member is in the locked state, a portion of the first locking member is located at a first position on the arcuate track segment to prevent a latch located on the first locking segment from sliding into the arcuate track segment. When the first locking member is in the unlocked state, the first locking member is located outside the slide groove to release the obstruction of the latch located on the first locking segment from sliding into the arcuate track segment.

[0039] In this way, when the locking pin is in the first locking section, under the action of the force F1 applied to the locking pin by the lifting component through the drive shaft and rocker arm, the first locking component in the locked state can apply a reaction force to the locking pin, so that the first locking component can prevent the locking pin from sliding into the arc trajectory section. This makes the reaction force F2 applied to the locking pin by the groove wall of the first locking section more stable. The resultant force formed by the reaction force F2 applied to the locking pin by the groove wall of the first locking section, the reaction force F3 applied to the locking pin by the ratchet through the pawl, and the reaction force applied to the locking pin by the first locking component can stably and reliably offset the weight of the lifting component and the objects set and supported on it, which is conducive to reliably locking the lifting component in the raised position. By distributing the reaction force exerted on the locking pin by F2, F3, and the first locking component to F1, the reaction force exerted by F2, F3, and the first locking component on the locking pin is reduced, making the rocker assembly less prone to damage. This results in higher reliability in locking the lifting component in the raised position and reduces the safety risks caused by locking failure of the lifting component in the raised position. Furthermore, the first locking component helps prevent foolproofing when the lifting component is locked in the raised position.

[0040] Secondly, embodiments of this application provide a lifting device, which includes a base, a lifting component, and a rocker assembly as described in any of the above embodiments. The fixed base of the rocker assembly is fixedly connected to the base, and the drive shaft of the rocker assembly is drively connected to the lifting component. The lifting component can move up and down relative to the base between a raised position and a lowered position.

[0041] Thirdly, embodiments of this application provide a circuit board testing device, which includes a mating detection component, a circuit board fixing component, and a lifting device as described in any of the above embodiments.

[0042] The docking detection component and the circuit board fixing component are arranged opposite each other, with one of the docking detection component and the circuit board fixing component located on the base of the lifting device, and the other of the docking detection component and the circuit board fixing component located on the lifting part of the lifting device. Attached Figure Description

[0043] Figure 1 A schematic diagram of a lifting device provided in an embodiment of this application;

[0044] Figure 2 for Figure 1 Another schematic diagram of the lifting device provided in the diagram;

[0045] Figure 3 An exploded view of a joystick assembly provided in an embodiment of this application;

[0046] Figure 4 for Figure 3 Another exploded view of the joystick assembly provided in the image;

[0047] Figure 5 for Figure 3 A perspective view of the joystick assembly provided in the image;

[0048] Figure 6 for Figure 3 Another schematic diagram of the joystick assembly provided in the image;

[0049] Figure 7 for Figure 3 Another schematic diagram of the joystick assembly provided in the image;

[0050] Figure 8 for Figure 3 Another schematic diagram of the joystick assembly provided in the image;

[0051] Figure 9 for Figure 3 Another schematic diagram of the joystick assembly provided in the image;

[0052] Figure 10 for Figure 3 Another schematic diagram of the joystick assembly provided in the image;

[0053] Figure 11 for Figure 3 Another schematic diagram of the joystick assembly provided in the image;

[0054] Figure 12 A schematic diagram of a card pin provided in an embodiment of this application;

[0055] Figure 13 for Figure 3 Another schematic diagram of the joystick assembly provided in the image;

[0056] Figure 14 for Figure 3 Another schematic diagram of the joystick assembly provided in the image;

[0057] Figure 15 A schematic diagram of a slide bar provided in an embodiment of this application;

[0058] Figure 16 for Figure 3 Another schematic diagram of the joystick assembly provided in the image;

[0059] Figure 17 A schematic diagram of a joystick provided in an embodiment of this application;

[0060] Figure 18 for Figure 17 Another illustration of the joystick provided in the image;

[0061] Figure 19 for Figure 3 Another schematic diagram of the joystick assembly provided in the image;

[0062] Figure 20 for Figure 3 Another schematic diagram of the joystick assembly provided in the image;

[0063] Figure 21 for Figure 3 Another schematic diagram of the joystick assembly provided in the image;

[0064] Figure 22 for Figure 3 Another schematic diagram of the joystick assembly provided in the image;

[0065] Figure 23 for Figure 3 Another schematic diagram of the joystick assembly provided in the image;

[0066] Figure 24 for Figure 3 Another schematic diagram of the joystick assembly provided.

[0067] Explanation of reference numerals in the attached figures:

[0068] 10. Base; 20. Lifting component; 30. Rocker assembly;

[0069] 100. Fixing base; 110. First fixing part; 120. Second fixing part;

[0070] 200. Drive shaft;

[0071] 300. Joystick;

[0072] 400. Slide bar;

[0073] 510. First elastic element; 520. Second elastic element;

[0074] 600, Pin; 610, First straight shaft section; 620, Second straight shaft section; 630, Connecting section;

[0075] 710. Ratchet; 720. Pad;

[0076] 810. First locking component; 820. Second locking component;

[0077] 900, grip;

[0078] G1, slide groove; G11, arc-shaped trajectory segment; G12, first locking segment; G13, second locking segment; G2, clearance groove;

[0079] H1, connecting hole; H2, assembly hole;

[0080] W1, first tank wall; W2, second tank wall. Detailed Implementation

[0081] The terminology used in the implementation section of this application is only for explaining specific embodiments of this application and is not intended to limit this application. The implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0082] This application provides a circuit board testing device capable of testing circuit boards. The circuit board may include, but is not limited to, server motherboards, power supply backplanes, hard drive backplanes, expansion boards, etc.

[0083] The circuit board testing equipment includes a mating inspection component and a circuit board fixing component. The mating inspection component and the circuit board fixing component are arranged vertically opposite each other. The circuit board fixing component is used to fix the circuit board, and the mating inspection component is used to mate with the circuit board fixed by the circuit board fixing component to achieve the testing of the circuit board.

[0084] Figure 1 This is a schematic diagram of a lifting device provided in an embodiment of this application. Figure 2 for Figure 1 Another schematic diagram of the lifting device provided in the document. In this diagram, Figure 1 This is a schematic diagram showing the lifting component in the lowering position. Figure 2 This is a schematic diagram showing the lifting component in the raised position.

[0085] This application also provides a lifting device that can be applied to circuit board testing equipment. Specifically, the circuit board testing equipment includes a lifting device for lifting and lowering a docking detection component or a circuit board, to dock the circuit board with the docking detection component and to disconnect the circuit board from the docking detection component. This lifting device can also be used for lifting heavy objects (e.g., servers), raising precision instruments, and other scenarios. For example, the lifting device can also be applied to other scenarios including but not limited to electrical manufacturing, automobile manufacturing, and work assistance. Figure 1 , Figure 2 As shown, the lifting device includes a lifting component 20, which can be used to carry objects such as docking detection components, circuit boards, heavy objects, and precision instruments. The lifting device can drive the lifting component 20 to lift and lower, thereby lifting and lowering the objects carried by the lifting component 20.

[0086] The following explanation uses the application of a lifting device in circuit board testing equipment as an example.

[0087] like Figure 1 , Figure 2As shown in the embodiment of this application, the lifting device further includes a base 10 and a rocker assembly 30. The rocker assembly 30 is disposed on the base 10 and is connected to the lifting component 20 in a transmission manner. The lifting component 20 can be raised and lowered relative to the base 10 between a raised position and a lowered position. The rocker assembly 30 is used to drive the lifting component 20 to rise and fall.

[0088] For example, the lifting component 20 can be slidably connected to the base 10, and the lifting component 20 can slide vertically relative to the base 10.

[0089] For example, one of the docking detection component and the circuit board fixing component is located on the base 10, and the other of the docking detection component and the circuit board fixing component is located on the lifting component 20.

[0090] like Figure 1 , Figure 2 As shown, the rocker assembly 30 includes a fixed base 100 and a drive shaft 200. The fixed base 100 is fixedly connected to the base 10, and the drive shaft 200 is rotatably connected to the fixed base 100. The drive shaft 200 can rotate relative to the fixed base 100 about its own axis. The drive shaft 200 is connected to the lifting component 20 for transmission, and the rotating drive shaft 20 is used to drive the lifting component 20 to move up and down.

[0091] Figure 3 An exploded view of a joystick assembly provided in an embodiment of this application.

[0092] like Figure 2 , Figure 3 As shown, the rocker assembly 30 also includes a rocker 300, which is rotatably connected to the fixed base 100 via a drive shaft 200. The rocker 300 and the drive shaft 200 rotate synchronously around the axis of the drive shaft 200.

[0093] In some examples, the joystick 300 can serve as a driving component, allowing the user to drive the drive shaft 200 to rotate by pushing or pulling the joystick 300.

[0094] In other examples, the rocker assembly 30 may also include a drive mechanism, which may include, but is not limited to, an electric drive mechanism, a pneumatic drive mechanism, a hydraulic drive mechanism, etc. The drive mechanism is connected to the drive shaft 200 for driving the drive shaft 200 to rotate, and the rotating drive shaft 200 drives the rocker 300 to rotate.

[0095] For example, the joystick 300 and the drive shaft 200 can be connected by a mutually cooperating slot and a locking block, which can make the transmission connection between the joystick 300 and the drive shaft 200 highly reliable. Specifically, the joystick 300 may have a connecting hole, the wall of the connecting hole and the outer wall of the drive shaft 200 have slots, and the locking block is engaged in the slots of the connecting hole wall and the outer wall of the drive shaft 200.

[0096] Figure 4 for Figure 3 Another exploded view of the joystick assembly provided in the image. Figure 5 for Figure 3 A perspective view of the joystick assembly provided in the game.

[0097] like Figure 4 , Figure 5 As shown, the rocker assembly 30 also includes a slide bar 400, a first elastic element 510, and a locking pin 600.

[0098] The slide rod 400 is fitted inside the rocker arm 300 and is slidably connected to the rocker arm 300. The locking pin 600 is connected to the slide rod 400. The first elastic element 510 is located between the slide rod 400 and the rocker arm 300.

[0099] For example, the rocker arm 300, slide bar 400, locking pin 600 and drive shaft 200 rotate synchronously about the axis of drive shaft 200.

[0100] For example, the slide bar 400 can slide towards the drive shaft 200 under the action of an external force in the direction of the drive shaft 200. The slide bar 400 sliding towards the drive shaft 200 can drive the locking pin 600 to move towards the drive shaft 200 and cause the first elastic element 510 to undergo elastic deformation. After the external force acting on the slide bar 400 in the direction of the drive shaft 200 disappears, the slide bar 400 can slide away from the drive shaft 200 under the action of the elastic restoring force of the first elastic element 510. The slide bar 400 sliding away from the drive shaft 200 can drive the locking pin 600 to move away from the drive shaft 200.

[0101] For example, the slide bar 400 can slide relative to the rocker arm 300 along the axial direction of the rocker arm 300, so that the slide bar 400 can drive the locking pin 600 to move along the axial direction of the rocker arm 300.

[0102] For example, the first elastic element 510 is disposed inside the rocker arm 300 and between the slide bar 400 and the drive shaft 200. The slide bar 400, which slides toward the drive shaft 200, compresses the first elastic element 510.

[0103] For example, one end of the slide bar 400 away from the drive shaft 200 extends through the rocker arm 300 so that an external force can be applied to the slide bar 400 in the direction of the drive shaft 200.

[0104] For example, the joystick assembly 30 may also include a grip 900 located outside the joystick 300 and connected to the end of the slide bar 400 away from the drive shaft 200, so that the user can apply an external force to the slide bar 400 in the direction of the drive shaft 200.

[0105] Figure 6 for Figure 3 Another schematic diagram of the joystick assembly provided in the document. Figure 7 for Figure 3 This is another schematic diagram of the joystick assembly provided. Among them, Figure 7 This is a schematic diagram of the rocker assembly 30 when the lifting component 20 is locked in the raised position.

[0106] like Figure 6 , Figure 7 As shown, the fixed base 100 has a slide groove G1, and part of the locking pin 600 is located in the slide groove G1.

[0107] The slide groove G1 includes an arc-shaped track segment G11, which is used to allow the locking pin 600 to slide during the lifting process of the lifting component 20.

[0108] During the lifting and lowering process of the lifting component 20, the locking pin 600 slides between the first position and the second position of the arc-shaped trajectory segment G11. When the lifting component 20 rises to the raised position, the locking pin 600 slides to the first position of the arc-shaped trajectory segment G11. When the lifting component 20 descends to the lowering position, the locking pin 600 slides to the second position of the arc-shaped trajectory segment G11.

[0109] For example, the first position and the second position of the arc-shaped trajectory segment G11 can be located at the two ends of the arc-shaped trajectory segment G11, respectively.

[0110] The slide G1 also includes a first locking section G12, which is connected to a first position of the arc-shaped track section G11 and is located on the radial side of the arc-shaped track section G11.

[0111] The slide bar 400 is used to drive the locking pin 600 to move radially along the arc-shaped trajectory segment G11.

[0112] The first elastic element 510 is used to drive the locking pin 600 from the first position into the first locking section G12 via the slide rod 400 when the locking pin 600 slides to the first position of the arc-shaped trajectory segment G11. The first locking section G12 is used to prevent the locking pin 600 from moving towards the second position of the arc-shaped trajectory segment G11.

[0113] The rocker assembly 30 also includes a ratchet 710 and a pawl 720. The ratchet 710 is fixedly connected to the fixed base 100, and the pawl 720 is connected to the locking pin 600. The pawl 720 abuts against the ratchet 710. When the locking pin 600 is in the first locking section G12, the pawl 720 is inserted into the tooth groove of the ratchet 710. The pawl 720 inserted into the tooth groove of the ratchet 710 is used to prevent the locking pin 600 from moving in the direction from the first position of the arc-shaped trajectory section G11 to the second position of the arc-shaped trajectory section G11.

[0114] like Figure 7 As shown, after the lifting component 20 is raised and the external force used to drive or hold the lifting component 20 to rise disappears, the lifting component 20 tends to descend under the weight of the lifting component 20 and the objects mounted and supported on it. At this time, the lifting component 20 applies a force F1 to the locking pin 600 through the drive shaft 200 and the rocker arm 300, so that the locking pin 600 tends to move in the direction of the second position of the arc-shaped trajectory segment G11.

[0115] By setting a first locking section G12 and causing the pin 600 to slide into the first locking section G12 when it slides to the first position of the arc-shaped trajectory section G11, the groove wall of the first locking section G12 will exert a reaction force F2 on the pin 600 that has slid into the first locking section G12 under the action of F1, so as to prevent the pin 600 from moving towards the second position of the arc-shaped trajectory section G11. By setting a ratchet 710 and a pawl 720, and having the pawl 720 inserted into the tooth groove of the ratchet 710 when the locking pin 600 is in the first locking section G12, under the action of F1, the ratchet 710 will apply a reaction force F3 to the locking pin 600 through the pawl 720, so as to prevent the locking pin 600 from moving towards the second position of the arc-shaped trajectory section G11 and to prevent the locking pin 600 from sliding from the first locking section G12 into the arc-shaped trajectory section G11. This makes it less likely for the lifting component 20 in the raised position to fall, and the lifting component 20 in the raised position has better safety.

[0116] When the locking pin 600 is in the first locking section G12, the pawl 720 is inserted into the tooth groove of the ratchet 710, making the reaction force F3 exerted by the ratchet 710 on the locking pin 600 through the pawl 720 more stable. Under the action of F3, the locking pin 600 is less likely to slide from the first locking section G12 into the arc-shaped trajectory section G11, making the reaction force F2 exerted by the groove wall of the first locking section G12 on the locking pin 600 more stable. Thus, the resultant force formed by the reaction force F2 exerted by the groove wall of the first locking section G12 on the locking pin 600 and the reaction force F3 exerted by the ratchet 710 on the locking pin 600 through the pawl 720 can reliably and stably offset the weight of the lifting component 20 and the objects mounted and supported on it, which is beneficial for reliably locking the lifting component 20 in the raised position, making it less likely for the lifting component 20 in the raised position to fall, and thus improving the safety of the lifting component 20 in the raised position. By sharing the burden of F1 with F2 and F3, F2 and F3 can be made smaller, making the rocker assembly 30 less prone to damage. The reliability of locking the lifting component 20 in the raised position is high, and the lifting component 20 in the raised position is less likely to fall due to locking failure, thus making the lifting component 20 in the raised position safer.

[0117] In addition, the cooperation of the first elastic element 510, ratchet 710 and pawl 720 facilitates the self-locking of the lifting component 20 during the lifting process, making it less likely for the lifting component 20 to fall due to the loss of driving force (e.g., the handle 900 slipping out of hand) during the lifting process, thus ensuring the safety of the lifting component 20 during the lifting process.

[0118] In addition, through the action of the first elastic element 510, as well as the ratchet 710 and pawl 720, the locking pin 600 located in the first locking section G12 is not likely to automatically slide into the arc-shaped trajectory section G11, which helps to prevent fooling when the lifting component 20 is locked in the raised position.

[0119] For example, the pawl 720 is located between the drive shaft 200 and the slide G1.

[0120] For example, the arc-shaped trajectory segment G11 is concentrically set with the drive shaft 200, that is, the center of the arc-shaped trajectory segment G11 is located on the axis of the drive shaft 200.

[0121] For example, when the locking pin 600 is in the first locking section G12, the sliding rod 400 can be moved closer to the drive shaft 200 by pressing down the handle 900, so as to drive the locking pin 600 to move closer to the drive shaft 200, thereby driving the pawl 720 to rotate out of the tooth groove of the ratchet 710 and causing the locking pin 600 to slide into the arc-shaped trajectory section G11, so that the locking pin 600 can slide along the arc-shaped trajectory section G11, thereby enabling the lifting component 20 to lift.

[0122] like Figure 7 As shown, in some possible embodiments, the pawl 720 is connected to the latch 600 via a second elastic member 520, which is used to press the pawl 720 against the ratchet 710.

[0123] This ensures that the pawl 720 and ratchet 710 are firmly engaged, making the reaction force exerted by the ratchet 710 on the locking pin 600 through the pawl 720 more stable. This facilitates reliable and stable locking of the locking pin 600 and the rocker arm 300, thereby ensuring reliable and stable locking of the lifting component 20 and improving the safety of the lifting component 20 after it is raised.

[0124] Figure 8 for Figure 3 This is another schematic diagram of the joystick assembly provided. Among them, Figure 8 This is a schematic diagram of the rocker assembly 30 when the lifting component 20 is locked in the lowering position.

[0125] like Figure 7 , Figure 8As shown, in some possible embodiments, the slide G1 further includes a second locking section G13. The second locking section G13 is connected to a second position of the arcuate track segment G11 and is located on the radial side of the arcuate track segment G11, with the first locking section G12 and the second locking section G13 located on the same radial side of the arcuate track segment G11.

[0126] The first elastic element 510 is also used to drive the locking pin 600 from the second position into the second locking section G13 via the slide rod 400 when the locking pin 600 slides to the second position of the arc-shaped trajectory segment G11. The second locking section G13 is used to prevent the locking pin 600 from moving towards the first position of the arc-shaped trajectory segment G11.

[0127] In this way, after the locking pin 600 slides into the second locking section G13, the second locking section G13 can prevent the locking pin 600 from moving towards the first position of the arc-shaped trajectory section G11. Through the action of the first elastic element 510, the locking pin 600 located in the second locking section G13 is not likely to automatically slide into the arc-shaped trajectory section G11, which is beneficial for preventing fooling when the lifting component 20 is locked in the landing position.

[0128] For example, when the locking pin 600 is in the second locking section G13, the pawl 720 is inserted into the tooth groove of the ratchet 710, so that the locking pin 600 and the rocker arm 300 cannot swing in the opposite direction, which helps to prevent fooling when the lifting component 20 is locked in the lowering position.

[0129] For example, when the locking pin 600 is in the second locking section G13, the sliding rod 400 can be moved closer to the drive shaft 200 by pressing down the handle 900, so as to drive the locking pin 600 to move closer to the drive shaft 200, thereby driving the pawl 720 to rotate out of the tooth groove of the ratchet 710 and causing the locking pin 600 to slide into the arc-shaped trajectory section G11, so that the locking pin 600 can slide along the arc-shaped trajectory section G11, thereby enabling the lifting component 20 to lift.

[0130] Figure 9 for Figure 3 Another schematic diagram of the joystick assembly provided in the document. Figure 10 for Figure 3 This is another schematic diagram of the joystick assembly provided. Among them, Figure 9 , Figure 10 These are schematic diagrams of the joystick assembly 30 from two different perspectives when the lifting component 20 is locked in the raised position.

[0131] like Figure 9 , Figure 10 As shown, in some possible embodiments, the fixing base 100 includes a first fixing part 110 and a second fixing part 120 that are opposite to each other and spaced apart. Both the first fixing part 110 and the second fixing part 120 are fixedly connected to the base 10.

[0132] A rocker arm 300, a slide bar 400, a ratchet 710, and a pawl 720 are disposed between the first fixed part 110 and the second fixed part 120, and a drive shaft 200 is rotatably connected to at least one of the first fixed part 110 and the second fixed part 120.

[0133] Both the first fixing part 110 and the second fixing part 120 have a sliding groove G1. The sliding groove G1 of the first fixing part 110 and the sliding groove G1 of the second fixing part 120 are arranged opposite to each other. Part of the locking pin 600 is located in the sliding groove G1 of the first fixing part 110 and part is located in the sliding groove G1 of the second fixing part 120.

[0134] At least one of the first fixing part 110 and the second fixing part 120 is fixedly connected to a ratchet 710. The locking pin 600 is connected to a pawl 720 corresponding to the ratchet 710. The pawl 720 is used to abut against the corresponding ratchet 710. When the locking pin 600 is in the first locking section G12, the pawl 720 is inserted into the tooth groove of the corresponding ratchet 710.

[0135] In this way, the assembly and contact between the locking pin 600 and the fixed seat 100 are relatively stable, which makes the reaction force exerted by the groove wall of the slide G1 on the locking pin 600 more stable. Moreover, the action surface between the locking pin 600 and the groove wall of the slide G1 is large, which is conducive to the stable and reliable movement of the locking pin 600 and the fixed seat 100, as well as the stable and reliable locking of the locking pin 600 and the rocker arm 300.

[0136] For example, both the first fixing part 110 and the second fixing part 120 are fixedly connected to ratchet 710. Pads 720 are provided between the rocker arm 300 and the first fixing part 110, and between the rocker arm 300 and the second fixing part 120. The ratchet 710 fixedly connected to the first fixing part 110 and the second fixing part 120 can apply a reaction force to the locking pin 600, which is conducive to the stable and reliable locking of the locking pin 600 and the rocker arm 300.

[0137] Figure 11 for Figure 3 Another schematic diagram of the joystick assembly provided.

[0138] like Figure 10 , Figure 11 As shown, in some possible embodiments, the rocker assembly 30 further includes a first locking member 810, which is disposed on the fixed base 100. When the first locking member 810 is in the locked state, a portion of the first locking member 810 is located at a first position on the arcuate track segment G11 to prevent the latch 600 located on the first locking segment G12 from sliding into the arcuate track segment G11. When the first locking member 810 is in the unlocked state, the first locking member 810 is located outside the slide groove G1 to release the obstruction of the latch 600 located on the first locking segment G12 from sliding into the arcuate track segment G11.

[0139] In this way, when the locking pin 600 is located in the first locking section G12, under the action of the force F1 applied to the locking pin 600 by the lifting component 20 through the drive shaft 200 and the rocker arm 300, the first locking component 810 in the locked state can apply a reaction force to the locking pin 600, so that the first locking component 810 can prevent the locking pin 600 from sliding into the arc trajectory section G11. This makes the reaction force F2 applied to the locking pin 600 by the groove wall of the first locking section G12 more stable. The resultant force formed by the reaction force F2 applied to the locking pin 600 by the groove wall of the first locking section G12, the reaction force F3 applied to the locking pin 600 by the ratchet 710 through the pawl 720, and the reaction force applied to the locking pin 600 by the first locking component 810 can stably and reliably offset the weight of the lifting component 20 and the objects set and carried on it, which is conducive to reliably locking the lifting component 20 in the raised position. By distributing the reaction forces exerted on the latch 600 by F2, F3, and the first locking component 810 to F1, the reaction forces exerted on the latch 600 by F2, F3, and the first locking component 810 are reduced, making the rocker assembly 30 less prone to damage. This ensures higher reliability in locking the lifting component 20 in the raised position and reduces the safety risks caused by locking failure of the lifting component 20 in the raised position. Furthermore, the first locking component 810 helps prevent foolproofing when the lifting component 20 is locked in the raised position.

[0140] For example, the first locking member 810 is disposed on the first fixing part 110. When the first locking member 810 is in the locked state, a portion of the first locking member 810 is located at the first position of the arcuate trajectory segment G11 of the first fixing part 110. When the first locking member 810 is in the unlocked state, the first locking member 810 is located on the side of the slide groove G1 of the first fixing part 110 away from the second fixing part 120.

[0141] For example, the first locking member 810 is a telescopic member. When the first locking member 810 is in the locked state, the first locking member 810 extends so that a portion of the first locking member 810 is located at a first position on the arcuate trajectory segment G11. When the first locking member 810 is in the unlocked state, the first locking member 810 retracts so that the first locking member 810 is located outside the slide groove G1.

[0142] For example, the first locking member 810 may be an electromagnetic locking member. For instance, the first locking member 810 may be a bidirectional self-holding electromagnet.

[0143] For example, the first locking component 810 can be electrically connected to the docking detection component to enable signal interaction between the first locking component 810 and the docking detection component. The first locking component 810 is used to switch to a locked state based on the docking detection component being powered on, and to switch to an unlocked state based on the docking detection component being powered off.

[0144] For example, when it is necessary to lower the lifting component 20 which is locked in the raised position, the first locking component 810 needs to be switched from the locked state to the unlocked state first. Then, by pressing down the handle 900, the slide bar 400 is moved towards the drive shaft 200, so as to drive the locking pin 600 to move towards the drive shaft 200, so as to drive the pawl 720 to rotate out of the tooth groove of the ratchet 710 and make the locking pin 600 slide into the arc-shaped trajectory segment G11, so that the locking pin 600 can slide along the arc-shaped trajectory segment G11 towards the second position of the arc-shaped trajectory segment G11, thereby allowing the lifting component 20 to be lowered.

[0145] like Figure 10 , Figure 11 As shown, in some possible embodiments, the rocker assembly 30 further includes a second locking member 820, which is disposed on the mounting base 100. When the second locking member 820 is in the locked state, a portion of the second locking member 820 is located at a second position on the arcuate track segment G11 to prevent the latch 600 located on the second locking segment G13 from sliding into the arcuate track segment G11. When the second locking member 820 is in the unlocked state, the second locking member 820 is located outside the slide groove G1 to release the obstruction of the latch 600 located on the second locking segment G13 from sliding into the arcuate track segment G11.

[0146] In this way, the second locking component 820, which is in a locked state, prevents the latch 600 located in the second locking section G13 from automatically sliding into the arc-shaped trajectory section G11, which helps to prevent fooling when the lifting component 20 is locked in the landing position.

[0147] For example, the second locking member 820 is disposed on the first fixing part 110. When the second locking member 820 is in the locked state, a portion of the second locking member 820 is located at the second position of the arcuate trajectory segment G11 of the first fixing part 110. When the second locking member 820 is in the unlocked state, the second locking member 820 is located on the side of the slide groove G1 of the first fixing part 110 away from the second fixing part 120.

[0148] For example, the second locking member 820 is a telescopic member. When the second locking member 820 is in the locked state, the second locking member 820 extends so that a portion of the second locking member 820 is located at the second position of the arcuate trajectory segment G11. When the second locking member 820 is in the unlocked state, the second locking member 820 retracts so that the second locking member 820 is located outside the slide groove G1.

[0149] For example, the second locking member 820 may be an electromagnetic locking member. For instance, the second locking member 820 may be a bidirectional self-holding electromagnet.

[0150] For example, the circuit board fixing assembly includes a positioning detection device for detecting whether the circuit board and the circuit board fixing assembly are properly assembled. A second locking member 820 can be electrically connected to the positioning detection device to enable signal interaction between the second locking member 820 and the positioning detection device. The second locking member 820 is configured to switch to an unlocked state based on a first signal generated by the positioning detection device indicating that the circuit board and the circuit board fixing assembly are properly assembled, and to switch to a locked state based on a second signal generated by the positioning detection device indicating that the circuit board and the circuit board fixing assembly are not properly assembled.

[0151] For example, when it is necessary to raise the lifting component 20 locked in the lowering position, the second locking component 820 needs to be switched from the locked state to the unlocked state first. Then, by pressing down the handle 900, the slide bar 400 is moved towards the drive shaft 200, so as to drive the locking pin 600 to move towards the drive shaft 200, so as to drive the pawl 720 to rotate out of the tooth groove of the ratchet 710 and make the locking pin 600 slide into the arc-shaped trajectory segment G11, so that the locking pin 600 can slide along the arc-shaped trajectory segment G11 towards the first position of the arc-shaped trajectory segment G11, thereby allowing the lifting component 20 to rise.

[0152] Figure 12 A schematic diagram of a card pin provided in an embodiment of this application. Figure 13 for Figure 3 Another schematic diagram of the joystick assembly provided in the document. Figure 14 for Figure 3 This is another schematic diagram of the joystick assembly provided. Among them, Figure 13 This is a schematic diagram of the rocker assembly 30 when the lifting component 20 is locked in the raised position.

[0153] like Figures 12-14 As shown, in some possible embodiments, the locking pin 600 includes a first straight shaft segment 610, a second straight shaft segment 620, and a connecting segment 630. The first straight shaft segment 610 and the second straight shaft segment 620 are not coaxial, are parallel to each other, and are fixedly connected by the connecting segment 630.

[0154] The first straight shaft segment 610 is rotatably connected to the slide rod 400, so that the second straight shaft segment 620 can swing about the first straight shaft segment 610. The slide rod 400 is used to drive the first straight shaft segment 610 to move radially along the arc-shaped trajectory segment G11, so as to drive the second straight shaft segment 620 to move through the first straight shaft segment 610. At least a portion of the second straight shaft segment 620 is located in the slide groove G1.

[0155] The arc-shaped trajectory segment G11 is used to allow the second straight shaft segment 620 to slide during the lifting and lowering process of the lifting component 20.

[0156] During the lifting process of the lifting component 20, the second straight shaft segment 620 slides between the first position and the second position of the arc-shaped trajectory segment G11. When the lifting component 20 rises to the raised position, the second straight shaft segment 620 slides to the first position of the arc-shaped trajectory segment G11. When the lifting component 20 descends to the lowered position, the second straight shaft segment 620 slides to the second position of the arc-shaped trajectory segment G11.

[0157] The first elastic element 510 is used to drive the first straight shaft segment 620 radially along the arcuate trajectory segment G11 via the slide rod 400 when the second straight shaft segment 620 slides to the first position of the arcuate trajectory segment G11, so that the second straight shaft segment 620 slides from the first position into the first locking segment G12. The first locking segment G12 is used to prevent the second straight shaft segment 620 from moving towards the second position of the arcuate trajectory segment G11.

[0158] The first elastic element 510 is also used to drive the first straight shaft segment 610 radially along the arcuate trajectory segment G11 via the slide rod 400 when the second straight shaft segment 620 slides to the second position of the arcuate trajectory segment G11, so that the second straight shaft segment 620 slides from the second position into the second locking segment G13. The second locking segment G13 is used to prevent the second straight shaft segment 620 from moving toward the first position of the arcuate trajectory segment G11.

[0159] Pawl 720 is connected to the second straight shaft segment 620. When the second straight shaft segment 620 is in the first locking segment G12, pawl 720 is inserted into the tooth groove of ratchet 710. Pawl 720 inserted into the tooth groove of ratchet 710 is used to prevent the second straight shaft segment 620 from moving in the direction from the first position of the arc-shaped trajectory segment G11 to the second position of the arc-shaped trajectory segment G11.

[0160] Thus, the locking pin 600 includes a first straight shaft segment 610 and a second straight shaft segment 620 that are parallel and not on the same axis, and the first straight shaft segment 610 and the second straight shaft segment 620 are connected by a connecting segment 630, making the locking pin 600 bendable. The bendable locking pin 600 also allows for a larger contact area between the locking pin 600 and the rocker arm 300, which can reduce stress concentration, reduce the risk of damage to the locking pin 600, and facilitate reliable locking of the lifting component 20.

[0161] Additionally, the pawl 720 is connected to the second straight shaft segment 620, which can swing around the first straight shaft segment 610, allowing the locking pin 600 to flip, thus facilitating the movement of the pawl 720. When the slide bar 400 moves the locking pin 600 away from the drive shaft 200, the first straight shaft segment 610 rotates to the side of the second straight shaft segment 620 away from the drive shaft 200, allowing the pawl 720 to insert into the tooth groove of the ratchet 710, thereby achieving self-locking of the locking pin 600 and the rocker arm 300. When the slide bar 400 moves the locking pin 600 towards the drive shaft 200, the first straight shaft segment 610 rotates relative to the second straight shaft segment 620 towards the side closer to the drive shaft 200, allowing the pawl 720 to rotate out of the tooth groove of the ratchet 710, enabling the locking pin 600 to slide along the arc-shaped trajectory segment G11. By swinging the second straight shaft segment 620 around the first straight shaft segment 610, the pawl 720 can be quickly switched between the position of being inserted into the tooth groove of the ratchet 710 and the position of being outside the tooth groove of the ratchet 710, so as to facilitate the quick self-locking of the locking pin 600 and the rocker arm 300.

[0162] In addition, the first straight shaft segment 610 is rotatably connected to the slide bar 400, and the rocker arm 300, the slide bar 400 and the locking pin 600 are synchronously rotated around the drive shaft 200 through the first straight shaft segment 610. The pawl 720 is connected to the second straight shaft section 620. The second straight shaft section 620 swings around the first straight shaft section 610. When the first straight shaft section 610 rotates to the side of the second straight shaft section 620 away from the drive shaft 200, the force-bearing position of the locking pin 600 is located on the axis of the second straight shaft section 620 away from the drive shaft 200. This makes the distance between the pawl 720 and the ratchet 710 smaller and the distance between the force-bearing position of the locking pin 600 and the drive shaft 200 larger. This makes it easier to self-lock the locking pin 600 and the rocker arm 300 by inserting the pawl 720 into the tooth groove of the ratchet 710. At the same time, it reduces the force acting on the locking pin 600, thereby reducing the risk of damage to the locking pin 600 and thus reliably locking the lifting component 20 in the raised position.

[0163] For example, both ends of the first straight shaft segment 610 are connected to a second straight shaft segment 620 via a connecting segment 630. The second straight shaft segments 620 connected to both ends of the first straight shaft segment 610 pass through the sliding groove G1 of the first fixing part 110 and the sliding groove G1 of the second fixing part 120, respectively. The sliding groove G1 of the first fixing part 110 and the sliding groove G1 of the second fixing part 120 are respectively used for sliding of the second straight shaft segments 620 connected to both ends of the first straight shaft segment 610.

[0164] For example, the second straight shaft segments 620 connected to both ends of the first straight shaft segment 610 are each connected to a pawl 720.

[0165] For example, the first locking component 810 in the locked state is used to prevent the second straight axis segment 620 located in the first locking segment G12 from sliding into the arc-shaped trajectory segment G11.

[0166] For example, the second locking component 820 in the locked state is used to prevent the second straight axis segment 620 located in the second locking segment G13 from sliding into the arc-shaped trajectory segment G11.

[0167] like Figure 13 As shown, when the lifting component 20 is locked in the raised position, the torque T generated by the weight of the lifting component 20 and the object mounted and supported on it on the drive shaft 200 is T = F4 * R1 = F5 * R2, where F4 is the force exerted by the lifting component 20 on the drive shaft 200, R1 is the radius of the drive shaft 200, F5 is the force exerted on the locking pin 600, and R2 is the distance between the force-bearing position of the locking pin 600 and the axis of the drive shaft 200. Taking R1 = 9mm, F4 = 500N (the total weight of the lifting component 20 and the object mounted and supported on it is 50KG), and R2 = 55mm as an example, F5 is approximately 81.9N. The force exerted by the rocker arm 300 and the slide bar 400 on the first straight shaft segment 610 is relatively small, making it less likely to damage the first straight shaft segment 610. When the material of the locking pin 600 is Q235 steel and the height of the locking pin 600 (that is, the dimension of the locking pin 600 in the direction of radial arrangement of the first straight shaft segment 610 and the second straight shaft segment 620 along the first straight shaft segment 610) is 4.4mm, the maximum load of the drive shaft 200 (the total weight of the lifting component 20 and the objects mounted and supported on it) can be 65.9KG. When F4=500N (the total weight of the lifting component 20 and the objects mounted and supported on it is 50KG), the maximum stress of the locking pin 600 is approximately 83.42Mpa.

[0168] Figure 15 A schematic diagram of a sliding rod provided in an embodiment of this application. Figure 16 for Figure 3 Another schematic diagram of the joystick assembly provided.

[0169] like Figure 15 , Figure 16 As shown, in some examples, the slide bar 400 has a mounting hole H2, and a locking pin 600 passes through the mounting hole H2. The locking pin 600 is used to abut against the wall of the mounting hole H2 so that the locking pin 600 and the slide bar 400 rotate synchronously about the axis of the drive shaft 200.

[0170] For example, a first straight shaft segment 610 passes through the mounting hole H2 and abuts against the wall of the mounting hole H2 so that the first straight shaft segment 610 and the slide rod 400 rotate synchronously about the axis of the drive shaft 200. The connecting segment 630 and the second straight shaft segment 620 are both located outside the mounting hole H2.

[0171] For example, the assembly hole H2 is a strip-shaped hole, and the length direction of the assembly hole H2 is radial to the arc-shaped trajectory segment G11. Along the radial direction of the arc-shaped trajectory segment G11, the length of the assembly hole H2 is greater than the size of the portion of the locking pin 600 located within the assembly hole H2, so that the locking pin 600 can move within the assembly hole H2 along the radial direction of the arc-shaped trajectory segment G11. In this way, the sliding of the locking pin 600 along the slide groove G1 is less prone to jamming.

[0172] For example, when the slide rod 400 moves away from the drive shaft 200 and the end of the mounting hole H2 near the drive shaft 200 abuts against the locking pin 600, the slide rod 400 can drive the locking pin 600 to move away from the drive shaft 200. Conversely, when the slide rod 400 moves towards the drive shaft 200 and the end of the mounting hole H2 away from the drive shaft 200 abuts against the locking pin 600, the slide rod 400 can drive the locking pin 600 to move towards the drive shaft 200.

[0173] For example, along the radial direction of the arcuate trajectory segment G11, the length of the mounting hole H2 is greater than the dimension of the first straight shaft segment 610.

[0174] Figure 17 A schematic diagram of a joystick provided in an embodiment of this application. Figure 18 for Figure 17 Another diagram of the joystick provided in the image. Figure 19 for Figure 3 Another schematic diagram of the joystick assembly provided in the document. Figure 20 for Figure 3 Another schematic diagram of the joystick assembly provided.

[0175] like Figures 17-20 As shown, in some possible embodiments, the rocker arm 300 has a strip-shaped connecting hole H1, and a portion of the first straight shaft segment 610 is located within the connecting hole H1. The connecting hole H1 is used to allow the first straight shaft segment 610 to move radially along an arcuate trajectory segment G11. The first straight shaft segment 610 is used to abut against the wall of the connecting hole H1 so that the rocker arm 300 and the slide bar 400 rotate synchronously about the axis of the drive shaft 200.

[0176] This allows for a larger force-bearing surface of the first straight shaft segment 610, which facilitates stable assembly and contact between the first straight shaft segment 610 and the rocker arm 300 and the slide bar 400. This, in turn, facilitates stable contact between the pawl 720 connected to the locking pin 600 and the ratchet 710, making the locking of the locking pin 600 and the rocker arm 300 more reliable and stable.

[0177] In some possible embodiments, the surface of the rocker arm 300 has a relief groove G2. A connecting hole H1 is provided at the bottom of the relief groove G2, such that the connecting hole H1 communicates with the space outside the rocker arm 300 through the relief groove G2, and the edge of the connecting hole H1 is spaced apart from the edge of the bottom of the relief groove G2. At least a portion of the connecting segment 630 is located within the relief groove G2, which is used to allow the connecting segment 630 and the second straight shaft segment 620 to swing about the first straight shaft segment 610.

[0178] This facilitates the flipping of the locking pin 600, making its movement less prone to jamming.

[0179] Figure 21 for Figure 3 Another schematic diagram of the joystick assembly provided in the document. Figure 22 for Figure 3 Another schematic diagram of the joystick assembly provided in the document. Figure 23 for Figure 3 Another schematic diagram of the joystick assembly provided in the document. Figure 24 for Figure 3 This is another schematic diagram of the joystick assembly provided. Among them, Figure 21 , Figure 22 This is a schematic diagram of the rocker assembly 30 during the movement of the lifting component 20. Figure 23 and Figure 24 This is a schematic diagram of the rocker assembly 30 when the external force that drives the lifting component 20 to rise or hold it disappears during the lifting process.

[0180] like Figures 21-24 As shown, the arc-shaped trajectory segment G11 has a first groove wall W1 and a second groove wall W2 that are radially opposite to each other along the arc-shaped trajectory segment G11, and a first locking segment G12 is connected to the first groove wall W1. When the slide groove G1 also includes a second locking segment G13, the second locking segment G13 is also connected to the first groove wall W1.

[0181] In some possible implementations, the distance between the first groove wall W1 and the second groove wall W2 along the radial direction of the arcuate trajectory segment G11 is greater than the size of the portion of the locking pin 600 located within the slide groove G1. When the locking pin 600 contacts the first groove wall W1, the pawl 720 is inserted into the tooth groove of the ratchet 710. When the locking pin 600 contacts the second groove wall W2, the pawl 720 is located outside the tooth groove of the ratchet 710.

[0182] Thus, when it is necessary for the locking pin 600 to slide along the arc-shaped trajectory segment G11, the sliding rod 400 can press the locking pin 600 to the position contacting the second groove wall W2, so that the pawl 720 is located outside the tooth groove of the ratchet 710. The locking pin 600 can slide smoothly in the arc-shaped trajectory segment G11, which is conducive to the smooth lifting and lowering of the lifting component 20. Under the action of the elastic restoring force of the first elastic element 510, when the sliding rod 400 presses the locking pin 600 to the position contacting the first groove wall W1, the pawl 720 is inserted into the tooth groove of the ratchet 710, which is conducive to the follow-up self-locking of the locking pin 600 and the rocker arm 300 during the lifting and lowering process of the lifting component 20, so as to perform follow-up self-locking of the lifting component 20.

[0183] For example, the first groove wall W1 is the groove wall of the arc-shaped trajectory segment G11 away from the drive shaft 200, and the second groove wall W2 is the groove wall of the arc-shaped trajectory segment G11 close to the drive shaft 200.

[0184] For example, along the radial direction of the arcuate trajectory segment G11, the distance between the first groove wall W1 and the second groove wall W2 is greater than the dimension of the second straight shaft segment 620. When the second straight shaft segment 620 contacts the first groove wall W1, the pawl 720 is inserted into the tooth groove of the ratchet 710. When the second straight shaft segment 620 contacts the second groove wall W2, the pawl 720 is located outside the tooth groove of the ratchet 710.

[0185] like Figure 21 As shown, when the lifting component 20 moves during the lifting process, the slide bar 400 drives the locking pin 600 to move to a position close to or in contact with the second groove wall W2. At this time, the pawl 720 is located outside the tooth groove of the ratchet 710, and the locking pin 600 can slide smoothly along the arc-shaped trajectory segment G11, so that the lifting component 20 can smoothly rise and fall.

[0186] like Figure 22 As shown, when the lifting component 20 moves during the lifting process, the second straight shaft section 620 moves to a position close to or in contact with the second groove wall W2.

[0187] like Figure 23 As shown, when the external force used to drive the lifting component 20 to rise or hold disappears during the lifting process, the slide bar 400, driven by the first elastic element 510, moves the locking pin 600 to a position that contacts the first groove wall W1. At this time, the pawl 720 is located in the tooth groove of the ratchet 710, which can realize the follow-up self-locking of the locking pin 600 and the rocker arm 300 during the lifting process of the lifting component 20.

[0188] like Figure 24As shown, when the external force used to drive the lifting component 20 to rise or hold disappears during the lifting process, the second straight shaft segment 620 moves to a position in contact with the first groove wall W1 under the drive of the first elastic element 510. The second straight shaft segment 620 is located on the side of the first straight shaft segment 610 close to the drive shaft 200.

[0189] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0190] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0191] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A joystick assembly, characterized in that, It includes a fixed base (100), a drive shaft (200), a rocker arm (300), a slide bar (400), a first elastic element (510), a locking pin (600), a ratchet (710), and a pawl (720); The rocker arm (300) is rotatably connected to the fixed base (100) via the drive shaft (200), the slide rod (400) is sleeved inside the rocker arm (300) and slidably connected to the rocker arm (300), the locking pin (600) is connected to the slide rod (400), and the drive shaft (200) is used for transmission connection with the lifting component; The fixed base (100) has a groove (G1), and a portion of the locking pin (600) is located in the groove (G1). The groove (G1) includes an arc-shaped trajectory segment (G11) and a first locking segment (G12). The arc-shaped trajectory segment (G11) is used to allow the locking pin (600) to slide during the lifting and lowering process of the lifting component; when the lifting component is raised to the raised position, the locking pin (600) slides to the first position of the arc-shaped trajectory segment (G11); when the lifting component is lowered to the lowering position, the locking pin (600) slides to the second position of the arc-shaped trajectory segment (G11). The first locking segment (G12) is connected to a first position of the arc-shaped trajectory segment (G11) and is located on the radial side of the arc-shaped trajectory segment (G11); The first elastic element (510) is disposed between the slide rod (400) and the rocker arm (300). The first elastic element (510) is used to drive the lock pin (600) from the first position into the first locking section (G12) through the slide rod (400) when the lock pin (600) slides to the first position of the arc-shaped trajectory segment (G11). The ratchet (710) is fixedly connected to the fixed seat (100), the pawl (720) is connected to the locking pin (600), and the pawl (720) abuts against the ratchet (710); When the locking pin (600) is located in the first locking section (G12), the pawl (720) is inserted into the tooth groove of the ratchet (710); the pawl (720) inserted into the tooth groove of the ratchet (710) is used to prevent the locking pin (600) from moving in the direction from the first position of the arc-shaped trajectory segment (G11) to the second position of the arc-shaped trajectory segment (G11).

2. The rocker assembly according to claim 1, characterized in that, The pawl (720) is connected to the latch (600) via a second elastic element (520), which is used to press the pawl (720) against the ratchet (710).

3. The rocker assembly according to claim 1 or 2, characterized in that, The locking pin (600) includes a first straight shaft segment (610), a second straight shaft segment (620), and a connecting segment (630). The first straight shaft segment (610) and the second straight shaft segment (620) are not coaxial, the first straight shaft segment (610) and the second straight shaft segment (620) are parallel, and the first straight shaft segment (610) and the second straight shaft segment (620) are fixedly connected by the connecting segment (630). The first straight shaft segment (610) is rotatably connected to the slide rod (400), such that the second straight shaft segment (620) can swing about the first straight shaft segment (610), and at least a portion of the second straight shaft segment (620) is located in the slide groove (G1); The arc-shaped trajectory segment (G11) is used to allow the second straight shaft segment (620) to slide during the lifting and lowering process of the lifting component; when the lifting component is raised to the raised position, the second straight shaft segment (620) slides to the first position of the arc-shaped trajectory segment (G11); when the lifting component is lowered to the lowering position, the second straight shaft segment (620) slides to the second position of the arc-shaped trajectory segment (G11); The first elastic element (510) is used to drive the first straight shaft segment (610) to move radially along the arc track segment (G11) via the slide rod (400) when the second straight shaft segment (620) slides to the first position of the arc track segment (G11), so that the second straight shaft segment (620) slides from the first position into the first locking segment (G12). The pawl (720) is connected to the second straight shaft section (620); when the second straight shaft section (620) is located in the first locking section (G12), the pawl (720) is inserted into the tooth groove of the ratchet (710).

4. The rocker assembly according to claim 3, characterized in that, The rocker arm (300) has a strip-shaped connecting hole (H1), and a portion of the first straight shaft segment (610) is located within the connecting hole (H1); The connecting hole (H1) is used to allow the first straight shaft segment (610) to move radially along the arc-shaped trajectory segment (G11); The first straight shaft segment (610) is used to abut against the wall of the connecting hole (H1) so that the rocker arm (300) and the slide bar (400) rotate synchronously about the axis of the drive shaft (200).

5. The rocker assembly according to claim 4, characterized in that, The surface of the rocker arm (300) has a relief groove (G2); The connecting hole (H1) is located at the bottom of the clearance groove (G2), so that the connecting hole (H1) communicates with the space outside the rocker arm (300) through the clearance groove (G2), and the edge of the connecting hole (H1) is spaced apart from the edge of the bottom of the clearance groove (G2). At least a portion of the connecting segment (630) is located within the clearance groove (G2), which is used to allow the connecting segment (630) and the second straight shaft segment (620) to swing about the first straight shaft segment (610).

6. The rocker assembly according to any one of claims 1-5, characterized in that, The arc-shaped trajectory segment (G11) has a first groove wall (W1) and a second groove wall (W2) that are radially opposite to each other along the arc-shaped trajectory segment (G11), and the first locking segment (G12) is connected to the first groove wall (W1). Along the radial direction of the arc-shaped trajectory segment (G11), the distance between the first groove wall (W1) and the second groove wall (W2) is greater than the size of the portion of the locking pin (600) located within the slide groove (G1); When the locking pin (600) contacts the first groove wall (W1), the pawl (720) is inserted into the tooth groove of the ratchet (710); When the latch (600) contacts the second groove wall (W2), the pawl (720) is located outside the tooth groove of the ratchet (710).

7. The rocker assembly according to any one of claims 1-6, characterized in that, The fixing base (100) includes a first fixing part (110) and a second fixing part (120) that are opposite to each other and spaced apart. The rocker arm (300), the slide bar (400), the ratchet (710) and the pawl (720) are disposed between the first fixed part (110) and the second fixed part (120), and the drive shaft (200) is rotatably connected to at least one of the first fixed part (110) and the second fixed part (120); Both the first fixing part (110) and the second fixing part (120) have the groove (G1). The groove (G1) of the first fixing part (110) and the groove (G1) of the second fixing part (120) are arranged opposite to each other. Part of the locking pin (600) is located in the groove (G1) of the first fixing part (110) and part is located in the groove (G1) of the second fixing part (120). At least one of the first fixing part (110) and the second fixing part (120) is fixedly connected to the ratchet (710). The locking pin (600) is connected to the pawl (720) corresponding to the ratchet (710). The pawl (720) is used to abut against the corresponding ratchet (710). When the locking pin (600) is located in the first locking section (G12), the pawl (720) is inserted into the tooth groove of the corresponding ratchet (710).

8. The rocker assembly according to any one of claims 1-7, characterized in that, It also includes a first locking component (810), which is disposed on the fixed base (100). When the first locking member (810) is in the locked state, a portion of the first locking member (810) is located at a first position of the arc-shaped trajectory segment (G11) to prevent the latch (600) located in the first locking segment (G12) from sliding into the arc-shaped trajectory segment (G11). When the first locking component (810) is in the unlocked state, the first locking component (810) is located outside the slide groove (G1) to release the obstruction of the latch (600) located in the first locking section (G12) from sliding into the arc-shaped trajectory section (G11).

9. A lifting device, characterized in that, It includes a base (10), a lifting component (20), and a rocker assembly as described in any one of claims 1-8; The fixed seat (100) of the rocker assembly is fixedly connected to the base (10), and the drive shaft (200) of the rocker assembly is connected to the lifting component (20) in a transmission manner. The lifting component (20) can move up and down relative to the base (10) between the raised position and the lowered position.

10. A circuit board testing device, characterized in that, It includes a docking detection component, a circuit board fixing component, and a lifting device as described in claim 9; The docking detection component and the circuit board fixing component are arranged opposite each other, one of the docking detection component and the circuit board fixing component is located on the base (10) of the lifting device, and the other of the docking detection component and the circuit board fixing component is located on the lifting component (20) of the lifting device.

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