A swing device for the goose head frame of a stacking machine that can be horizontally translated

Abstract

The present invention discloses a swing device for the gooseneck frame of a stacker capable of horizontal translation, which includes a gooseneck frame body and a main boom of the stacker. The left end of the gooseneck frame body is detachably connected to the outer wall on the right side of the stacker. A translation assembly is provided at the bottom of the gooseneck frame body. The translation assembly includes a moving rod. A support plate is fixedly installed on the outer wall of the main boom of the stacker. A chute is penetrated and opened at the top of the support plate, and the moving rod is penetrated and connected to the inner wall of the chute. In the present invention, by installing a moving rod, a servo motor I drives a gear to rotate, the gear drives a rack to slide, and a hydraulic rod drives a connecting plate and the moving rod to move horizontally, so that the gooseneck frame body moves towards the back direction of the main boom of the stacker. The right end of the hydraulic rod shortens to the left, so that the connecting plate drives the moving rod to move to the left. The moving rod slides into the inner wall of the chute and drives the gooseneck frame body to translate horizontally, and the gooseneck frame body is translated to one side of the back of the main boom of the stacker, which is convenient for automatically retracting the gooseneck frame body.

Description

Technical Field

[0001] The present invention relates to the technical field of goose head frames, and particularly to a swing device for a goose head frame of a stacking machine that can be horizontally translated. Background Art

[0002] A stacking machine is a construction machinery that uses a boom to move and transfer lifted items and stack them. When in use, a goose head frame needs to be installed at one end of the boom. By installing a swing column swing device for the goose head frame, the height of the item lifted by the stacking machine and the working range of swinging and transferring the item are increased, so as to avoid the collision between large-volume items and the boom during the transfer process when stacking. However, when the existing swing device for the goose head frame of the stacking machine is in use, the goose head frame is connected to the boom through a rotating shaft. When storing the goose head frame, it is necessary to manually remove the fixing pin and push the goose head frame to rotate to retract the swing device for the goose head frame, which is not convenient for horizontally translating the goose head frame for retraction.

[0003] The existing defects are as follows:

[0004] 1. Patent document JP5687378B1 discloses a swing and vehicle lock device, "The present invention provides a swing at the rear of the vehicle body while maintaining its driving performance and stopping the oscillation of the rear of the vehicle body during parking. The vehicle includes a rear suspension 20 for suspending the rear wheels and a swing locking device 60 for stopping the swing of the rear wheels. The rear suspension is rotatably mounted on a pair of left and right cantilever arms 21L of the vehicle body independently of each other to support the rear wheels in the vehicle body, and the balancer rod is rotatably connected to the vehicle body with 40. The left and right ends of a pair of shock absorbers 35L are respectively connected in series, and a suspension arm straddles the rotation axis of the balancer rod. The swing locking device includes a stopper 70 fixed in one or more of the fitting portions formed on the balancer rod according to a predetermined operation for fitting a locking pin 81 fixed to the vehicle body and an operating mechanism 80 for actuating the locking pin." However, the above-mentioned disclosed document does not have a horizontal translation function;

[0005] 2. The patent document US12586274 discloses a temporary single-arm adjustable gooseneck hitch system. "The temporary single-arm adjustable gooseneck hitch system allows a conventional trailer behind a tow vehicle to use a straight tongue or A-frame trailer hitch, and can be converted into a temporary single-arm, adjustable gooseneck trailer. It can be towed by an independent self-propelled vehicle (such as, but not limited to, a small utility vehicle, an all-terrain multi-purpose vehicle, a fifth-wheel cart assembly, or a rear towing device of a towing vehicle (e.g., a pickup truck with a standard fifth-wheel linkage). The aforementioned system uses a quick-connect coupler device connected to the hitch tongue of a conventional trailer frame to receive and lock the temporary single-arm adjustable gooseneck. By using a temporary fastener inserted through a matching pre-drilled hole in the receiver coupler and the adjustable, insertable connector tube part of the present invention." However, the above-mentioned published document is not convenient for voice prompts;

[0006] 3. The patent document CN111271008B discloses a swing gooseneck of a secondary pulley frame of a rotary drilling rig, a gooseneck of a rotary drilling rig, and a rotary drilling rig. "The present invention discloses a swing gooseneck of a secondary pulley frame of a rotary drilling rig, a gooseneck of a rotary drilling rig, and a rotary drilling rig. The swing gooseneck of the secondary pulley frame of the rotary drilling rig includes a secondary pulley frame; the secondary pulley frame is hinged to the main pulley frame, and a telescopic member is connected between the main pulley frame and the secondary pulley frame; a deflecting pulley group arranged horizontally is further provided on the main pulley frame. The secondary hoist wire rope passes through the deflecting pulley group and the secondary pulley group on the secondary pulley frame and is lowered to the working position. The secondary pulley frame swings through the telescopic member. The swing gooseneck of the secondary pulley frame of the rotary drilling rig of the present invention can not only effectively reduce the space size of the gooseneck and improve the transportation and transfer efficiency, but also has a larger angle in the working state of the secondary pulley frame, and the secondary hoist operation radius becomes larger, so that the overall working efficiency of the machine is greatly improved." However, the above-mentioned published document is not convenient for assisting the gooseneck frame to move;

[0007] 4. The patent document CN102887441B discloses a self-loading and unloading device for a gooseneck frame of a crane. "It includes a main boom and a gooseneck frame. The self-loading and unloading device for the gooseneck frame includes a guide rope frame and a support device of the crane. Among them, the guide rope frame includes a frame body and a guide rope drum. The first end of the frame body is hinged to one end of the upper part of the basic boom of the main boom close to the head of the main boom. The guide rope frame is rotatably arranged around the hinge axis of the hinge. The guide rope drum is arranged at the second end of the frame body; the support device is respectively connected to the head of the main boom of the crane and the frame body of the guide rope frame, and makes the guide rope drum located above the gooseneck frame of the crane. Among them, the guide rope frame has two functions. When the crane is working normally, it can play the role of pressing the rope of the original guide rope frame; during the hoisting process of the gooseneck frame, the guide rope frame is connected to the support device to form a self-loading and unloading device for the gooseneck frame of the crane, playing the role of a lifting tooling and a guide rope. Therefore, the self-loading and unloading device for the gooseneck frame is simple and convenient, suitable for outdoor construction, and reduces the operation cost." However, the self-loading and unloading device for the gooseneck frame of a crane in the above-mentioned published document requires manual fixing and disassembling of the gooseneck frame. Summary of the Invention

[0008] The purpose of the present invention is to provide a swing device for the goose head frame of a stacking machine that can be horizontally translated, so as to solve the problem that when the swing device for the goose head frame of the stacking machine is used, it is not convenient to horizontally translate and move the goose head frame for retraction as mentioned in the above background technology.

[0009] To achieve the above purpose, the present invention provides the following technical solution: A swing device for the goose head frame of a stacking machine that can be horizontally translated, including a goose head frame body and a main boom of the stacking machine. The left end of the goose head frame body is detachably connected to the outer wall of the right side of the stacking machine, and a translation component is arranged at the bottom of the goose head frame body;

[0010] The translation component includes a moving rod. A limiting plate is fixedly installed on the outer wall of the moving rod. A support plate is fixedly installed on the outer wall of the main boom of the stacking machine. A sliding groove is opened through the top of the support plate, and the moving rod runs through and is connected to the inner wall of the sliding groove. A connecting plate is fixedly installed on the outer wall of the moving rod. A hydraulic rod is fixedly connected to the outer wall of the connecting plate. A rack is fixedly connected to the left end of the hydraulic rod. A servo motor I is fixedly installed on the inner wall of the stacking machine. A gear is fixedly installed on the outer wall of the output end of the servo motor, and the gear is meshed with the rack.

[0011] Preferably, a voice assistance module is arranged inside the moving rod to be used for voice-assisted prompting of the position of the moving rod.

[0012] Preferably, the voice assistance module includes a buzzer. A storage battery is fixedly installed at the bottom inside the moving rod. The upper terminal of the storage battery is connected to the lower terminal of the buzzer through a connecting wire. A conductive connecting piece II is embedded and installed on the outer wall of the moving rod. A conductive connecting piece III is embedded and installed on the outer wall of the moving frame. The conductive connecting piece II is located above the guiding connecting piece III. A fixing block is fixedly installed at the bottom of the support plate. A conductive connecting piece I is embedded and installed on the outer wall of the fixing block.

[0013] Preferably, the conductive connecting piece II is connected to the upper terminal of the buzzer through a connecting wire, and the conductive connecting piece III is connected to the lower terminal of the storage battery through a connecting wire.

[0014] Preferably, an installation groove is opened on the outer wall of the moving rod. A roller is embedded and installed on the inner wall of the installation groove. A clamping groove is opened on the inner wall of the sliding groove. The outer wall of the roller is slidably connected to the inner wall of the clamping groove. A convex block is fixedly installed on the top of the rack, and the convex block is embedded and connected to the bottom of the main boom of the stacking machine. A ball is embedded and installed on the top of the convex block to reduce the friction between the connection part of the convex block and the main boom of the stacking machine.

[0015] Preferably, an automatic fixing component is arranged on the outer wall of the main boom of the stacking machine to be used for fixing the goose head frame body.

[0016] Preferably, the automatic fixing component includes a fixing frame and a fixing plate. The fixing frame and the fixing plate are fixedly installed on the outer wall of the main boom of the stacker, and the fixing frame is symmetrically arranged up and down with respect to the fixing plate. A bidirectional lead screw is installed through the outer wall of the fixing plate. A worm gear is fixedly installed on the outer wall of the bidirectional lead screw. A worm is meshed and connected to the outer wall of the worm gear. One end of the worm is fixedly connected to the output end of the second servo motor, and the second servo motor is fixedly installed on the inner wall of the main boom of the stacker. A moving plate is connected through the outer wall of the bidirectional lead screw. A rotating rod is rotatably connected to the inner wall of the moving plate. The top end of the rotating rod is movably connected to the bottom of the mounting plate. A fixing pin is fixedly installed on the top of the mounting plate. The fixing pin penetrates through the bottom of the fixing frame and the bottom of the goose head frame body for fixing the goose head frame body.

[0017] Preferably, a fixing shaft is installed through the outer wall of the goose head frame body. A fixed pulley is sleeved on the outer wall of the fixing shaft. A rope guiding frame is fixedly installed on the top of the goose head frame body.

[0018] A using method of a swing device for the goose head frame of a stacker capable of horizontal translation includes the following steps:

[0019] S1. The second servo motor rotates forward, driving the worm to rotate. The worm drives the meshed worm gear to rotate clockwise. The worm gear drives the bidirectional lead screw to rotate clockwise, causing the two groups of moving plates located on both sides of the fixing plate to move. The outer wall of the moving plate is embedded and connected to the outer wall of the main boom of the stacker, so that the two groups of moving plates move horizontally towards each other. The two groups of moving plates gradually approach the outer wall of the fixing plate, driving the rotating rod to rotate around the connection part with the inner wall of the moving plate. For the two rotating rods located below the bidirectional lead screw, their top ends rotate upward, driving the mounting plate located below the lead screw to move upward, driving the fixing pin at the bottom of the mounting plate to move upward, separating from the outer walls of the fixing frame and the goose head frame body. For the two rotating rods located above the bidirectional lead screw, their top ends rotate downward, driving the upper mounting plate and the fixing pin to move downward, separating the fixing pin from the outer walls of the fixing frame and the goose head frame body;

[0020] S2. The first servo motor rotates forward, driving the gear to rotate. The gear drives the rack to move. The rack moves, driving the convex block to slide at the bottom of the main boom of the stacker. The ball rolls along the bottom of the main boom of the stacker. The rack drives the connecting plate to move horizontally through the hydraulic rod. The connecting plate drives the moving rod to slide horizontally along the inner wall of the chute, driving the roller to slide along the inner wall of the card slot, reducing the friction between the outer wall of the moving rod and the inner wall of the chute. The moving rod drives the goose head frame body to move horizontally, translating the goose head frame body to be placed parallel to the main boom of the stacker;

[0021] S3. The right end of the hydraulic rod shortens, driving the connecting plate to move leftward. The connecting plate drives the moving rod to move leftward along the inner wall of the chute. The moving rod drives the goose head frame body to translate horizontally, so that the goose head frame body is translated to the back side of the main boom of the stacker;

[0022] S4. When installing the gooseneck frame body, the right end of the hydraulic rod extends to the right. The hydraulic rod pushes the connecting plate to move to the right. The connecting plate drives the two rightmost moving rods to slide along the inner wall of the chute. The moving rods drive the gooseneck frame body to move to the right. When the outer wall of the leftmost moving rod of the gooseneck frame body fits against the outer wall of the fixed block, the second conductive connecting piece and the second conductive connecting piece simultaneously fit against the third conductive connecting piece, forming a closed circuit between the storage battery and the buzzer. The buzzer is powered on to emit a voice prompt, and the hydraulic rod stops extending. Start the first servo motor to rotate in the reverse direction, drive the gear to rotate in the reverse direction, make the rack drive the hydraulic rod to move, drive the moving rod to move through the connecting plate, and the moving rod drives the gooseneck frame body to move towards the front direction of the main boom of the stacker, so that the outer wall on the left side of the gooseneck frame body is slidably connected to the outer wall of the fixed frame, and move the gooseneck frame body to a position in the same straight line as the main boom of the stacker;

[0023] S5. The second servo motor rotates in the reverse direction, driving the worm to rotate. The worm drives the engaged worm wheel to rotate counterclockwise. The worm wheel drives the bidirectional lead screw to rotate counterclockwise, causing the two groups of moving plates located on both sides of the fixed plate to move. The moving plates move in a direction away from the fixed plate, pushing the rotating rod to rotate. The end of the rotating rod away from the moving plate rotates and rotates in a direction away from the bidirectional lead screw. The rotating rod pushes the mounting plate to move, driving the fixing pin to penetrate the outer walls of the fixed frame and the gooseneck frame body, and automatically fixing the gooseneck frame body;

[0024] A usage method of a swing device for a gooseneck frame of a stacker that can be horizontally translated,

[0025] In the step S2, the following steps are further included:

[0026] S21. The moving rod slides and translates along the inner wall of the chute formed by penetrating the top of the support plate. When the outer wall of the moving rod close to the main boom of the stacker fits against the outer wall of the fixed block, the second conductive connecting piece and the second conductive connecting piece on the outer wall of the moving rod simultaneously fit against the third conductive connecting piece, forming a closed circuit between the storage battery and the buzzer. The buzzer is powered on to emit a voice prompt, reminding the first servo motor to turn off.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. The present invention is equipped with a rack, a support plate, and a moving rod. The first servo motor rotates forward, driving the gear to rotate. The gear drives the rack to slide along the bottom wall of the main boom of the stacker. The rack drives the hydraulic rod to move. The hydraulic rod drives the connecting plate to move horizontally. The connecting plate drives the moving rod to move, causing the gooseneck frame body to move towards the back direction of the main boom of the stacker. Start the hydraulic rod, and the right end of the hydraulic rod shortens to the left, driving the connecting plate to move to the left. The connecting plate drives the moving rod to move to the left, causing the moving rod to slide into the inner wall of the chute. The moving rod drives the gooseneck frame body to be horizontally translated, and the gooseneck frame body is translated to the back side of the main boom of the stacker, facilitating the automatic retraction of the gooseneck frame body;

[0029] 2. When the moving rod slides and translates along the inner wall of the chute penetratingly opened at the top of the support plate, the goose head frame body is driven to move. When the outer wall of the moving rod on the side close to the main boom of the stacker moves to fit the outer wall of the fixed block, the second conductive connecting piece and the second conductive connecting piece on the outer wall of the moving rod are simultaneously in contact with the third conductive connecting piece, forming a closed circuit between the storage battery and the buzzer. The buzzer is powered on to give a voice prompt, reminding the first servo motor to turn off, starting the hydraulic rod to shorten, driving the goose head frame body to translate horizontally, and retracting.

[0030] 3. By installing rollers, balls and bumps, when the rack moves, it drives the bump to slide at the bottom of the main boom of the stacker. The balls roll along the bottom of the main boom of the stacker. The rack drives the connecting plate to move horizontally through the hydraulic rod, drives the moving rod to slide horizontally along the inner wall of the chute through the connecting plate, and drives the roller to slide along the inner wall of the card slot. By setting the balls and rollers, it is beneficial to reduce the friction between the connection between the bump and the main boom of the stacker and the friction between the moving rod and the inner wall of the chute, and improve the stability when the moving rod drives the goose head frame to translate horizontally.

[0031] 4. By installing a fixed frame, a fixing plate and a fixing pin, when the goose head frame body moves to be in the same straight line direction as the main boom of the stacker, the second servo motor rotates reversely, driving the worm to rotate. The worm drives the meshing-connected worm wheel to rotate counterclockwise. The worm wheel drives the bidirectional lead screw to rotate counterclockwise, causing the two groups of moving plates on both sides of the fixing plate to move. The moving plates move away from the fixing plate, pushing the rotating rod to rotate, causing the end of the rotating rod away from the moving plate to rotate and rotate away from the bidirectional lead screw. The rotating rod pushes the mounting plate to move, driving the fixing pin to penetrate the outer walls of the fixed frame and the goose head frame body, and automatically fixing the goose head frame body. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is the overall structural schematic diagram of the present invention;

[0033] Figure 2 is the structural schematic diagram of the goose head frame body of the present invention;

[0034] Figure 3 is the structural schematic diagram of the support plate of the present invention;

[0035] Figure 4 is the structural schematic diagram of the moving column of the present invention;

[0036] Figure 5 is the front structural schematic diagram of the present invention;

[0037] Figure 6 is the bottom structural schematic diagram of the present invention;

[0038] Figure 7Schematic diagram of the right side structure of the present invention;

[0039] Figure 8 of the present invention Figure 7 Enlarged schematic diagram of the structure at position A;

[0040] Figure 9 of the present invention Figure 5 Enlarged schematic diagram of the structure at position B.

[0041] In the figure: 1, goose head frame body; 2, moving rod; 3, limiting plate; 4, support plate; 5, chute; 6, connecting plate; 7, hydraulic rod; 8, rack; 9, gear; 10, servo motor 1; 11, installation groove; 12, roller; 13, card slot; 14, convex block; 15, ball; 16, fixed block; 17, conductive connection piece 1; 18, storage battery; 19, buzzer; 20, connecting wire; 21, conductive connection piece 2; 22, conductive connection piece 3; 23, main boom of stacker; 24, fixed frame; 25, fixing plate; 26, bidirectional lead screw; 27, worm gear; 28, worm; 29, servo motor 2; 30, moving plate; 31, rotating rod; 32, mounting plate; 33, fixing pin; 35, fixed pulley; 36, wire guiding frame. Specific embodiments

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. shall be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0045] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 6 , an embodiment provided by the present invention: a swing device for the gooseneck frame of a stacker capable of lateral translation, comprising a gooseneck frame body 1 and a main boom 23 of the stacker. The left end of the gooseneck frame body 1 is detachably connected to the outer wall on the right side of the stacker, and a translation assembly is provided at the bottom of the gooseneck frame body 1;

[0046] The translation component includes a moving rod 2. The number of installed groups of the moving rod 2 is three, which are arranged from left to right along the bottom of the gooseneck frame body 1. A limiting plate 3 is fixedly installed on the outer wall of the moving rod 2. A support plate 4 is fixedly installed on the outer wall of the main boom 23 of the stacker. The support plate 4 is located on the back side and the right outer wall of the main boom 23 of the stacker, and the bottom of the support plate 4 is in the same plane as the bottom of the stacker. A chute 5 is formed through the top of the support plate 4, and the moving rod 2 is connected through the inner wall of the chute 5. The outer wall of the moving rod 2 is slidably connected to the inner wall of the chute 5. The bottom of the limiting plate 3 is slidably connected to the top of the support plate 4, and the width of the limiting plate 3 is greater than the width of the chute 5. The limiting plate 3 is used to limit and support the moving rod 2, so that the moving rod 2 supports the gooseneck frame body 1. A connecting plate 6 is fixedly installed on the outer wall of the rightmost group of moving rods 2. A hydraulic rod 7 is fixedly connected to the outer wall of the connecting plate 6. The right end of the hydraulic rod 7 is fixedly connected to the middle position of the connecting plate 6. The left end of the hydraulic rod 7 is fixedly connected to a rack 8. The top of the rack 8 is slidably connected to the bottom of the main boom 23 of the stacker. A servo motor 10 is fixedly installed inside the stacker. The output end of the servo motor penetrates through the bottom of the inner wall of the main boom 23 of the stacker and extends below the main boom 23 of the stacker. A gear 9 is fixedly installed on the outer wall of the output end of the servo motor. The gear 9 is located on the left side of the rack 8, and the gear 9 is meshed with the rack 8. When it is necessary to retract the gooseneck frame body 1, the servo motor 10 rotates forward, driving the gear 9 to rotate. The gear 9 drives the rack 8 to slide along the bottom wall of the main boom 23 of the stacker. The rack 8 moves towards the back of the main boom 23 of the stacker, driving the hydraulic rod 7 to move. The hydraulic rod 7 drives the connecting plate 6 to move horizontally. The connecting plate 6 drives the rightmost group of moving rods 2 to move, so that the gooseneck frame body 1 moves along the right outer wall of the main boom 23 of the stacker towards the back of the main boom 23 of the stacker. The gooseneck frame body 1 drives the leftmost group of moving rods 2 at the bottom to slide horizontally along the inner wall of the chute 5. It stops when the outer wall of the moving rod 2 fits against the outer wall of the fixed block 16. The hydraulic rod 7 is started, so that the right end of the hydraulic rod 7 shortens to the left, driving the connecting plate 6 to move to the left. The connecting plate 6 drives the moving rod 2 to move to the left, so that the moving rod 2 slides into the inner wall of the chute 5. The moving rod 2 drives the gooseneck frame body 1 to translate horizontally, and the gooseneck frame body 1 is translated to the back side of the main boom 23 of the stacker, which is convenient for automatically retracting the gooseneck frame body.

[0047] Please refer to Figure 3 、 Figure 7 and Figure 8 This invention provides an embodiment: A swing device for the gooseneck of a stacker that can be translated horizontally, including a gooseneck frame body 1 and a main boom 23 of the stacker. The left end of the gooseneck frame body 1 is detachably connected to the right outer wall of the stacker. A voice assistance module is provided inside the moving rod 2 for voice-assisted prompting of the position of the moving rod 2, and the voice assistance module is located inside the group of moving rods 2 close to the main boom 23 of the stacker, and even inside one of the moving rods 2 close to the back side of the stacker.

[0048] The voice assistance module includes a buzzer 19. At the bottom of the inner wall of the moving rod 2, a storage battery 18 is fixedly installed. The storage battery 18 is located below the buzzer 19. Two terminal posts are respectively fixedly arranged on the outer wall of the storage battery 18 and the outer wall of the buzzer 19. The upper terminal post of the storage battery 18 is connected to the lower terminal post of the buzzer 19 through a connecting wire 20. A second conductive connecting piece 21 is embedded and installed on the outer wall of the moving rod 2, and a third conductive connecting piece 22 is embedded and installed on the outer wall of the moving frame. The second conductive connecting piece 21 is located above the guiding connecting piece three. The second conductive connecting piece 21 is connected to the upper terminal post of the buzzer 19 through the connecting wire 20, and the third conductive connecting piece 22 is connected to the lower terminal post of the storage battery 18 through the connecting wire 20. A fixing block 16 is fixedly installed at the bottom of the support plate 4. The fixing block 16 is located on the right side of the main boom 23 of the stacker. A first conductive connecting piece 17 is embedded and installed on the outer wall of the fixing block 16. The moving rod 2 slides and translates along the inner wall of the chute 5 opened through the top of the support plate 4, driving the main body of the goose head frame to move. When the outer wall of the moving rod 2 on the side close to the main boom 23 of the stacker moves to fit with the outer wall of the fixing block 16, the second conductive connecting piece 21 and the third conductive connecting piece 22 on the outer wall of the moving rod 2 are simultaneously in contact with the first conductive connecting piece 17, forming a closed circuit between the storage battery 18 and the buzzer 19. The buzzer 19 is powered on to emit a voice prompt, reminding the first servo motor 10 to turn off, and starting the hydraulic rod 7 to shorten, driving the main body of the goose head frame to translate horizontally for retraction.

[0049] Please refer to Figure 1 、 Figure 3 、 Figure 4 and Figure 5, an embodiment provided by the present invention: a swing device for the gooseneck frame of a stacker capable of horizontal translation, comprising a gooseneck frame body 1 and a stacker main boom 23. The left end of the gooseneck frame body 1 is detachably connected to the outer wall on the right side of the stacker. An installation groove 11 is formed in the outer wall of the moving rod 2. The installation groove 11 is located below the limiting plate 3. A roller 12 is embedded in the inner wall of the installation groove 11, and the number of installed rollers 12 is several. A clamping groove 13 is formed in the inner wall of the sliding groove 5, and the outer wall of the roller 12 is slidably connected to the inner wall of the clamping groove 13. A convex block 14 is fixedly installed at the top of the rack 8, and the convex block 14 is embedded and connected to the bottom of the stacker main boom 23. By providing the convex block 14 to support the rack 8, it is beneficial to improve the stability of the rack 8 during movement. A ball 15 is embedded at the top of the convex block 14, and the ball 15 is slidably connected to the inner wall of the stacker main boom 23, which is used to reduce the friction between the connection of the convex block 14 and the inner wall of the stacker main boom 23. When the rack 8 moves, it drives the convex block 14 to slide at the bottom of the stacker main boom 23, and the ball 15 rolls along the bottom of the stacker main boom 23. The rack 8 drives the connecting plate 6 to move horizontally through the hydraulic rod 7, and drives the moving rod 2 to slide horizontally along the inner wall of the sliding groove 5 through the connecting plate 6, driving the roller 12 to slide along the inner wall of the clamping groove 13. By providing the ball 15 and the roller 12, it is beneficial to reduce the friction between the connection of the convex block 14 and the inner wall of the stacker main boom 23, and the friction between the moving rod 2 and the inner wall of the sliding groove 5, and improve the stability of the moving rod 2 driving the gooseneck frame to translate horizontally.

[0050] Please refer to Figure 3 and Figure 9 , an embodiment provided by the present invention: a swing device for the gooseneck frame of a stacker capable of horizontal translation, comprising a gooseneck frame body 1 and a stacker main boom 23. The left end of the gooseneck frame body 1 is detachably connected to the outer wall on the right side of the stacker. An automatic fixing component is provided on the outer wall of the stacker main boom 23 for fixing the gooseneck frame body 1;

[0051] The automatic fixing component is located on the right outer wall of the main boom 23 of the stacker. The automatic fixing component includes a fixing frame 24 and a fixing plate 25. The fixing frame 24 and the fixing plate 25 are fixedly installed on the outer wall of the main boom 23 of the stacker. The number of installed fixing frames 24 is four, and the number of installed fixing plates is two. The fixing plate 25 is located at the middle position on the right side of the main boom 23 of the stacker, and the fixing frames 24 are symmetrically arranged up and down with respect to the fixing plate 25. A bidirectional lead screw 26 is installed through the outer wall of the fixing plate 25. The bidirectional lead screw 26 is horizontally arranged. A worm gear 27 is fixedly installed on the outer wall of the bidirectional lead screw 26. A worm 28 is meshed and connected to the outer wall of the worm gear 27. One end of the worm 28 penetrates through the outer wall of the main boom 23 of the stacker, and one end of the worm 28 is fixedly connected to the output end of the second servo motor 29. The second servo motor 29 is fixedly installed on the inner wall of the main boom 23 of the stacker. A moving plate 30 is connected through the outer wall of the bidirectional lead screw 26. The number of installed moving plates 30 is two, which are symmetrically arranged left and right with respect to the fixing plate 25. And the outer wall of the fixing plate 25 is embedded and connected to the right outer wall of the main boom 23 of the stacker. A rotating rod 31 is rotatably connected to the inner wall of the moving plate 30. The rotating rods 31 are symmetrically arranged up and down with respect to the bidirectional lead screw 26. For the rotating rod 31 located above the bidirectional lead screw 26, its top end is movably connected to the bottom of the mounting plate 32. A fixing pin 33 is fixedly installed on the top of the mounting plate 32. The fixing pin 33 penetrates through the bottom of the fixing frame 24, and the fixing pin 33 penetrates through the bottom of the goose head frame body 1. For the rotating rod 31 located below the bidirectional lead screw 26, its bottom end is rotatably connected to the top end of the lower mounting plate 32. A fixing pin 33 is fixedly installed on the bottom of the mounting plate 32 for fixing the goose head frame body 1. When the second servo motor 29 rotates in the reverse direction, it drives the worm 28 to rotate. The worm 28 drives the engaged worm gear 27 to rotate counterclockwise. The worm gear 27 drives the bidirectional lead screw 26 to rotate counterclockwise, so that the two groups of moving plates 30 located on both sides of the fixing plate 25 move. The moving plates 30 move in a direction away from the fixing plate 25, pushing the rotating rod 31 to rotate, so that the end of the rotating rod 31 away from the moving plate 30 rotates and rotates in a direction away from the bidirectional lead screw 26. The rotating rod 31 pushes the mounting plate 32 to move, driving the fixing pin 33 to penetrate through the outer walls of the fixing frame 24 and the goose head frame body 1, and automatically fixing the goose head frame body 1.

[0052] A swing device for the goose head frame of a stacker that can be horizontally translated, including a goose head frame body 1 and a main boom 23 of the stacker. The left end of the goose head frame body 1 is detachably connected to the right outer wall of the stacker;

[0053] A fixed shaft is installed through the outer wall of the goose head frame body 1. The fixed shaft is located near the right end of the goose head frame. A fixed pulley 35 is sleeved and installed on the outer wall of the fixed shaft. The fixed pulley 35 is used for deflecting the steel wire rope of the stacker. A wire guide frame 36 is fixedly installed on the top of the goose head frame body 1. The wire guide frame 36 is used for guiding the steel cable of the stacker;

[0054] A method of using a swing device for the goose head frame of a stacker capable of horizontal translation, comprising the following steps:

[0055] S1. The second servo motor 29 rotates in the forward direction, driving the worm 28 to rotate. The worm 28 drives the meshing-connected worm wheel 27 to rotate clockwise. The worm wheel 27 drives the bidirectional lead screw 26 to rotate clockwise, causing the two groups of moving plates 30 located on both sides of the fixed plate 25 to move. The outer wall of the moving plate 30 is embedded and connected to the outer wall of the main boom 23 of the stacker, so that the two groups of moving plates 30 move horizontally towards each other. The two groups of moving plates 30 gradually approach the outer wall of the fixed plate 25, driving the rotating rod 31 to rotate around the connection point with the inner wall of the moving plate 30. For the two rotating rods 31 located below the bidirectional lead screw 26, their tops rotate upwards, driving the mounting plate 32 below the lead screw to move upwards, driving the fixing pin 33 at the bottom of the mounting plate 32 to move upwards, separating from the outer walls of the fixed frame 24 and the goose head frame body 1. For the two rotating rods 31 located above the bidirectional lead screw 26, their tops rotate downwards, driving the upper mounting plate 32 and the fixing pin 33 to move downwards, so that the fixing pin 33 separates from the outer walls of the fixed frame 24 and the goose head frame body 1;

[0056] S2. The first servo motor 10 rotates in the forward direction, driving the gear 9 to rotate. The gear 9 drives the rack 8 to move. The rack 8 moves, driving the convex block 14 to slide at the bottom of the main boom 23 of the stacker. The ball 15 rolls along the bottom of the main boom 23 of the stacker. The rack 8 drives the connecting plate 6 to move horizontally through the hydraulic rod 7. The connecting plate 6 drives the moving rod 2 to slide along the inner wall of the chute 5, driving the roller 12 to slide along the inner wall of the card slot 13, reducing the friction between the outer wall of the moving rod 2 and the inner wall of the chute 5. The moving rod 2 drives the goose head frame body 1 to move horizontally, translating the goose head frame body 1 to be placed parallel to the main boom 23 of the stacker;

[0057] S3. The right end of the hydraulic rod 7 shortens, driving the connecting plate 6 to move to the left. The connecting plate 6 drives the moving rod 2 to move to the left along the inner wall of the chute 5. The moving rod 2 drives the goose head frame body 1 to translate horizontally, so that the goose head frame body 1 is translated to the back side of the main boom 23 of the stacker;

[0058] S4. When installing the gooseneck frame body 1, the right end of the hydraulic rod 7 extends to the right. The hydraulic rod 7 pushes the connecting plate 6 to move to the right. The connecting plate 6 drives the two rightmost moving rods 2 to slide along the inner wall of the chute 5. The moving rods 2 drive the gooseneck frame body 1 to move to the right. When the outer wall of the leftmost moving rod 2 of the gooseneck frame body 1 fits against the outer wall of the fixed block 16, the second conductive connecting piece 21 and the second conductive connecting piece 21 are simultaneously in contact with the third conductive connecting piece 22, forming a closed circuit between the storage battery 18 and the buzzer 19. The buzzer 19 is powered on to give a voice prompt, and the hydraulic rod 7 stops extending. The servo motor 10 starts to rotate reversely, driving the gear 9 to rotate reversely, causing the rack 8 to drive the hydraulic rod 7 to move, driving the moving rod 2 to move through the connecting plate 6. The moving rod 2 drives the gooseneck frame body 1 to move towards the front direction of the main boom 23 of the stacker, so that the left outer wall of the gooseneck frame body 1 is slidably connected to the outer wall of the fixed frame 24, and the gooseneck frame body 1 is moved to a position in the same straight line as the main boom 23 of the stacker;

[0059] S5. The servo motor 29 rotates reversely, driving the worm 28 to rotate. The worm 28 drives the engaged worm wheel 27 to rotate counterclockwise. The worm wheel 27 drives the bidirectional lead screw 26 to rotate counterclockwise, causing the two groups of moving plates 30 located on both sides of the fixed plate 25 to move. The moving plates 30 move away from the fixed plate 25, pushing the rotating rod 31 to rotate, so that the end of the rotating rod 31 away from the moving plate 30 rotates and moves away from the bidirectional lead screw 26. The rotating rod 31 pushes the mounting plate 32 to move, driving the fixing pin 33 to penetrate through the outer walls of the fixed frame 24 and the gooseneck frame body 1, automatically fixing the gooseneck frame body 1;

[0060] A method for using a swing device of a stacker gooseneck frame that can be horizontally translated,

[0061] In step S2, the following steps are further included:

[0062] S21. The moving rod 2 slides horizontally along the inner wall of the chute 5 formed by penetrating the top of the support plate 4. When the outer wall of the moving rod 2 close to the main boom 23 of the stacker fits against the outer wall of the fixed block 16, the second conductive connecting piece 21 and the second conductive connecting piece 21 on the outer wall of the moving rod 2 are simultaneously in contact with the third conductive connecting piece 22, forming a closed circuit between the storage battery 18 and the buzzer 19. The buzzer 19 is powered on to give a voice prompt, reminding the servo motor 10 to turn off.

[0063] Working principle: When a swing device of a stacker gooseneck frame that can be horizontally translated is in use, the gooseneck frame body 1 and the main boom 23 of the stacker are in the same straight line direction. The left outer wall of the gooseneck frame body 1 fits against the right outer wall of the main boom 23 of the stacker, and the outer wall of the gooseneck frame body 1 fits against the outer wall of the fixed frame 24. The gooseneck frame body 1 is fixed by the fixing pin 33 penetrating through the outer wall of the fixed frame 24 of the gooseneck frame body 1, avoiding the phenomenon of unstable installation of the gooseneck frame body 1;

[0064] When the goose head frame body 1 is not in use, the second servo motor 29 rotates forward, driving the worm 28 to rotate. The worm 28 drives the meshing-connected worm wheel 27 to rotate clockwise. The worm wheel 27 drives the bidirectional lead screw 26 to rotate clockwise, causing the two groups of moving plates 30 located on both sides of the fixed plate 25 to move towards each other. This drives the rotating rod 31 to rotate around the connection point with the inner wall of the moving plate 30. For the two rotating rods 31 located below the bidirectional lead screw 26, their tops rotate upward, driving the mounting plate 32 below the lead screw to move upward, and driving the fixing pin 33 at the bottom of the mounting plate 32 to move upward, separating from the fixed frame 24 and the outer wall of the goose head frame body 1. For the two rotating rods 31 located above the bidirectional lead screw 26, their tops rotate downward, driving the upper mounting plate 32 and the fixing pin 33 to move downward, so that the fixing pin 33 separates from the fixed frame 24 and the outer wall of the goose head frame body 1. The first servo motor 10 rotates forward, driving the gear 9 to rotate. The gear 9 drives the rack 8 to move. The rack 8 moves, driving the convex block 14 to slide at the bottom of the main boom 23 of the stacker. The ball 15 rolls along the bottom of the main boom 23 of the stacker. The rack 8 drives the connecting plate 6 to move horizontally through the hydraulic rod 7. The connecting plate 6 drives the moving rod 2 to slide along the inner wall of the chute 5 horizontally, driving the roller 12 to slide along the inner wall of the card slot 13, reducing the friction between the outer wall of the moving rod 2 and the inner wall of the chute 5. The moving rod 2 drives the goose head frame body 1 to move horizontally, translating the goose head frame body 1 to be placed parallel to the main boom 23 of the stacker. When the outer wall of the moving rod 2 on the side close to the main boom 23 of the stacker moves to fit the outer wall of the fixed block 16, the second conductive connecting piece 21 on the outer wall of the moving rod 2 and the second conductive connecting piece 21 simultaneously fit the third conductive connecting piece 22, forming a closed circuit between the storage battery 18 and the buzzer 19. The buzzer 19 is powered on to emit a voice prompt, reminding the first servo motor 10 to turn off. The hydraulic rod 7 is started, causing the right end of the hydraulic rod 7 to shorten to the left, driving the connecting plate 6 to move to the left. The connecting plate 6 drives the moving rod 2 to move to the left, causing the moving rod 2 to slide into the inner wall of the chute 5. The moving rod 2 drives the goose head frame body 1 to translate horizontally, translating the goose head frame body 1 to the back side of the main boom 23 of the stacker, facilitating the automatic retraction of the goose head frame body.

[0065] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A swing device for the gooseneck frame of a stacking machine capable of lateral translation, comprising a gooseneck frame body (1) and a main boom (23) of the stacking machine, characterized in that: The left end of the gooseneck frame body (1) is detachably connected to the outer wall of the right side of the stacker, and a translation component is arranged at the bottom of the gooseneck frame body (1); The translation component includes a moving rod (2). A limiting plate (3) is fixedly installed on the outer wall of the moving rod (2). A support plate (4) is fixedly installed on the outer wall of the main boom (23) of the stacker. A chute (5) is formed through the top of the support plate (4), and the moving rod (2) is connected through the inner wall of the chute (5). A connecting plate (6) is fixedly installed on the outer wall of the moving rod (2). A hydraulic rod (7) is fixedly connected to the outer wall of the connecting plate (6). A rack (8) is fixedly connected to the left end of the hydraulic rod (7). A servo motor I (10) is fixedly installed on the inner wall of the stacker. A gear (9) is fixedly installed on the outer wall of the output end of the servo motor, and the gear (9) is meshed with the rack (8); An automatic fixing component is arranged on the outer wall of the main boom (23) of the stacker for fixing the gooseneck frame body (1); The automatic fixing component includes a fixing frame (24) and a fixing plate (25). The fixing frame (24) and the fixing plate (25) are fixedly installed on the outer wall of the main boom (23) of the stacker, and the fixing frame (24) is symmetrically arranged up and down with respect to the fixing plate (25). A bidirectional lead screw (26) is installed through the outer wall of the fixing plate (25). A worm gear (27) is fixedly installed on the outer wall of the bidirectional lead screw (26). A worm (28) is meshed with the outer wall of the worm gear (27). One end of the worm (28) is fixedly connected to the output end of a servo motor II (29), and the servo motor II (29) is fixedly installed on the inner wall of the main boom (23) of the stacker. A moving plate (30) is connected through the outer wall of the bidirectional lead screw (26). A rotating rod (31) is rotatably connected to the inner wall of the moving plate (30). The top end of the rotating rod (31) is movably connected to the bottom of a mounting plate (32). A fixing pin (33) is fixedly installed on the top of the mounting plate (32). The fixing pin (33) penetrates through the bottom of the fixing frame (24) and the bottom of the gooseneck frame body (1) for fixing the gooseneck frame body (1).

2. The swing device of the gooseneck frame of the stacking machine capable of lateral translation according to claim 1, wherein: A voice assistance module is arranged inside the moving rod (2) for voice-assisted prompting of the position of the moving rod (2).

3. The swing device of the gooseneck frame of the stacking machine capable of lateral translation according to claim 2, wherein: The voice assistance module includes a buzzer (19). A storage battery (18) is fixedly installed at the bottom inside the moving rod (2). The upper terminal of the storage battery (18) is connected to the lower terminal of the buzzer (19) through a connecting wire (20). A conductive connecting piece II (21) is embedded in the outer wall of the moving rod (2). A conductive connecting piece III (22) is embedded in the outer wall of the moving frame. The conductive connecting piece II (21) is located above the guiding connecting piece III. A fixing block (16) is fixedly installed at the bottom of the support plate (4). A conductive connecting piece I (17) is embedded in the outer wall of the fixing block (16).

4. The swing device of the gooseneck frame of the stacking machine capable of lateral translation according to claim 3, characterized in that: The conductive connecting piece II (21) is connected to the upper terminal of the buzzer (19) through the connecting wire (20). The conductive connecting piece III (22) is connected to the lower terminal of the storage battery (18) through the connecting wire (20).

5. The swing device of the gooseneck frame of a stacking machine capable of lateral translation according to claim 4, characterized in that: An installation groove (11) is formed in the outer wall of the moving rod (2), a roller (12) is embedded in the inner wall of the installation groove (11), a clamping groove (13) is formed in the inner wall of the sliding groove (5), the outer wall of the roller (12) is slidably connected to the inner wall of the clamping groove (13), a convex block (14) is fixedly installed at the top of the rack (8), and the convex block (14) is embedded and connected to the bottom of the main boom (23) of the stacker, and a ball (15) is embedded and installed at the top of the convex block (14) to reduce the friction between the connection of the convex block (14) and the main boom (23) of the stacker.

6. The swing device of the gooseneck frame of a stacking machine capable of lateral translation according to claim 5, characterized in that: A fixed shaft is installed through the outer wall of the gooseneck frame body (1), a fixed pulley (35) is sleeved on the outer wall of the fixed shaft, and a wire guide frame (36) is fixedly installed at the top of the gooseneck frame body (1).

7. The usage method of a swing device for the gooseneck frame of a stacking machine capable of lateral translation according to claim 6, characterized in that: Including the following steps: S1. The servo motor II (29) rotates forward to drive the worm (28) to rotate. The worm (28) drives the engaged worm gear (27) to rotate clockwise. The worm gear (27) drives the bidirectional lead screw (26) to rotate clockwise, so that two sets of moving plates (30) located on both sides of the fixed plate (25) move. The outer wall of the moving plate (30) is embedded and connected to the outer wall of the main boom (23) of the stacker, so that the two sets of moving plates (30) move horizontally towards each other. The two sets of moving plates (30) gradually approach the outer wall of the fixed plate (25), driving the rotating rod (31) to rotate around the connection with the inner wall of the moving plate (30). For the two rotating rods (31) located below the bidirectional lead screw (26), their tops rotate upward, driving the mounting plate (32) located below the lead screw to move upward, driving the fixed pin (33) at the bottom of the mounting plate (32) to move upward, separating from the outer walls of the fixed frame (24) and the gooseneck frame body (1). For the two rotating rods (31) located above the bidirectional lead screw (26), their tops rotate downward, driving the upper mounting plate (32) and the fixed pin (33) to move downward, so that the fixed pin (33) is separated from the outer walls of the fixed frame (24) and the gooseneck frame body (1); S2. The servo motor I (10) rotates forward to drive the gear (9) to rotate. The gear (9) drives the rack (8) to move. The rack (8) moves, driving the convex block (14) to slide at the bottom of the main boom (23) of the stacker. The ball (15) rolls along the bottom of the main boom (23) of the stacker. The rack (8) drives the connecting plate (6) to move horizontally through the hydraulic rod (7). The connecting plate (6) drives the moving rod (2) to slide horizontally along the inner wall of the sliding groove (5), driving the roller (12) to slide along the inner wall of the clamping groove (13), reducing the friction between the outer wall of the moving rod (2) and the inner wall of the sliding groove (5). The moving rod (2) drives the gooseneck frame body (1) to move horizontally, and translates the gooseneck frame body (1) to be placed parallel to the main boom (23) of the stacker; S3. The right end of the hydraulic rod (7) shortens, driving the connecting plate (6) to move leftward. The connecting plate (6) drives the moving rod (2) to move leftward along the inner wall of the sliding groove (5). The moving rod (2) drives the gooseneck frame body (1) to translate horizontally, so that the gooseneck frame body (1) is translated to the back side of the main boom (23) of the stacker; S4. When installing the gooseneck frame body (1), the right end of the hydraulic rod (7) extends to the right. The hydraulic rod (7) pushes the connecting plate (6) to move to the right. The connecting plate (6) drives the two rightmost moving rods (2) to slide along the inner wall of the chute. The moving rods (2) drive the gooseneck frame body (1) to move to the right. When the outer wall of the leftmost moving rod (2) of the gooseneck frame body (1) fits against the outer wall of the fixed block (16), the second conductive connecting piece (21) and the third conductive connecting piece (22) are simultaneously in contact with the first conductive connecting piece (17), forming a closed circuit between the battery (18) and the buzzer (19). The buzzer (19) is powered on to emit a voice prompt, and the hydraulic rod (7) stops extending. The first servo motor (10) is started to rotate in the reverse direction, driving the gear (9) to rotate in the reverse direction, causing the rack (8) to drive the hydraulic rod (7) to move, driving the moving rods (2) to move through the connecting plate (6). The moving rods (2) drive the gooseneck frame body (1) to move towards the front of the main boom (23) of the stacker, so that the outer wall on the left side of the gooseneck frame body (1) is slidably connected to the outer wall of the fixed frame (24), and the gooseneck frame body (1) is moved to a position in the same straight line as the main boom (23) of the stacker. S5. The second servo motor (29) rotates in the reverse direction, driving the worm (28) to rotate. The worm (28) drives the engaged worm wheel (27) to rotate counterclockwise. The worm wheel (27) drives the bidirectional lead screw (26) to rotate counterclockwise, causing the two groups of moving plates (30) located on both sides of the fixed plate (25) to move. The moving plates (30) move away from the fixed plate (25), pushing the rotating rod (31) to rotate, so that the end of the rotating rod (31) away from the moving plate (30) rotates and rotates away from the bidirectional lead screw (26). The rotating rod (31) pushes the mounting plate (32) to move, driving the fixed pin (33) to penetrate through the outer walls of the fixed frame (24) and the gooseneck frame body (1), automatically fixing the gooseneck frame body (1).

8. The method for using a swing device of a stacker gooseneck frame capable of lateral translation according to claim 7, characterized in that: In the step S2, the following steps are further included: S21. The moving rod (2) slides and translates along the inner wall of the chute (5) formed by penetrating the top of the support plate (4). When the outer wall of the moving rod (2) on the side close to the main boom (23) of the stacker fits against the outer wall of the fixed block (16), the second conductive connecting piece (21) and the third conductive connecting piece (22) on the outer wall of the moving rod (2) are simultaneously in contact with the first conductive connecting piece (17), forming a closed circuit between the battery (18) and the buzzer (19). The buzzer (19) is powered on to emit a voice prompt, reminding the first servo motor (10) to be turned off.

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