998 results about "Piano" patented technology

The invention relates to the technical field of music teaching, and discloses a piano pedal motion range indicating device for music teaching, which comprises a placing plate and an indicating structure arranged on the placing plate, and is characterized in that a sucker is mounted at the bottom of the placing plate; the indicating structure comprises an indicating frame, a soft pedal display screen, a noise reduction pedal display screen and a tenuto pedal display screen are sequentially arranged on the front face of the indicating frame from left to right, a reminding piece for reminding pedal switching is further arranged on the indicating frame, and a first indicating piece for displaying actions of the soft pedal is arranged on the soft pedal display screen. Through the arrangement of the indication structure, the action and amplitude of the piano pedal can be displayed, so that accurate reminding of the action of the piano pedal is realized, a practicer can conveniently and accurately control the action amplitude of the piano pedal, teaching display of the piano is further facilitated, the teaching effect of the piano can be improved, and rapid learning of the piano is facilitated.

The invention relates to the field of piano intelligent display, in particular to a playing data display method and system, and the method comprises the steps: obtaining music score data; the music score data comprises one or more of the following: standard time values, standard strength, standard fingering and standard pitches corresponding to the plurality of notes; the playing data of the user are obtained, the playing data of the user comprise data sets at multiple moments, and the data sets comprise one or more of the following data: time value data, force data, fingering data and pitch data; judging whether at least one data group is matched with the corresponding music score data or not; if yes, correlation comparison is carried out on the music score data and the matched data set, and the difference degree is calculated; and displaying the music score, and displaying the associated data group in a region corresponding to the notes. According to the playing data display method provided by the invention, visual optimization can be realized on the basis of ensuring the integrity of playing parameters.

The present application relates to the technical field of piano, in particular to a piano pedal system, comprising an external unit and an additional unit; the external unit comprises: an external pedal module comprising at least one external pedal; a data acquisition module for acquiring the pedal data of the external pedal; a height adjustment module comprising a driving mechanism and two supporting mechanisms, the driving mechanism comprising a driving motor, a driving gear fixedly connected with the output shaft of the driving motor and two driving racks, the two driving racks being oppositely engaged on both sides of the driving gear, the supporting mechanisms being one-to-one arranged with the driving racks, the supporting mechanisms being connected between the driving racks and the external pedal module, the driving racks driving the supporting mechanisms to stretch or retract to realize the height adjustment of the external pedal module; the additional unit is used for stepping on the corresponding piano pedal according to the pedal data. The present application can be applied to different types and models of pianos and improve the accuracy and convenience of the height adjustment of the pedal.

The invention discloses a hand exoskeleton control system and method for piano on-demand auxiliary teaching. The hand exoskeleton control system comprises a hand exoskeleton mechanical module, a dynamics module, an outer ring admittance controller, an inner ring position controller and an online compensation unit. The hand exoskeleton mechanical module is composed of a servo motor, a dynamic torque sensor, a hand exoskeleton base, a shaft sleeve, a palm fixing plate and a finger module. The dynamics module is used for constructing a dynamics simplified model of the finger module; the outer ring admittance controller is used for generating a compliant trajectory compensation amount conforming to the actual dynamic response; the inner ring position controller is used for dynamically adjusting the output torque of the servo motor, reducing buffeting of the sliding mode and realizing finger playing trajectory tracking; and the online compensation unit is used for performing real-time estimation and feed-forward compensation on a nonlinear disturbance term existing in the tracking error of the inner loop position controller based on the RBF neural network.

The present invention relates to the technical field of electric power hardware, and in particular to a double suspension wire clamp, comprising a suspension plate and a hanger, wherein the lower end of the hanger is rotatably connected to the middle part of the suspension plate; the double suspension wire clamp also comprises two wire clamp assemblies, two rotating shafts, a swing arm 1, a swing arm 2 and a pull rod, wherein the two wire clamp assemblies are used for clamping cables, the middle parts of the two wire clamp assemblies are both equipped with rotating shafts, and the two wire clamp assemblies are rotatably installed on the left and right ends of the suspension plate through the two rotating shafts respectively, the upper end of the swing arm 1 is fixedly connected to the rotating shaft on the wire clamp assembly at the left end, the lower end of the swing arm 2 is fixedly connected to the rotating shaft on the wire clamp assembly at the right end, the swing arm 1 and the swing arm 2 are respectively vertically arranged with the two wire clamp assemblies, the left end of the pull rod is rotatably connected to the lower end of the swing arm 1, and the right end of the pull rod is rotatably connected to the upper end of the swing arm 2; the double vertical wire clamp always maintains an eight-shaped relative arrangement, and when the cable is subjected to unbalanced force, the cable bending damage is reduced, and the practicability is good.

The invention discloses an intelligent piano teaching projection device and method based on computer vision. The device comprises a data acquisition and projection module, a calibration module, a data processing module, a side projection module and an auxiliary module. The intelligent piano teaching projection method realized based on the device comprises the following steps: segmenting a top view image of a player in a piano key area acquired by the data acquisition and projection module by using a Mask2form image segmentation model; constructing a finger skeleton of the player by using a finger skeleton modeling algorithm, judging whether the player performs playing correctly at the current moment, if so, keeping the light projection position of the data acquisition and projection module unchanged, prompting the player to press the keys again, and if not, stopping playing. If yes, keys needing to be pressed down and pedals needing to be treaded down at the next moment are prompted through projection, and guidance is provided for a player. According to the invention, the piano does not need to be transformed, and piano guidance can be realized through projection only by fixing the device on the piano.

The invention discloses a piano partner training device based on an AI technology, which comprises an AI intelligent processing system, the AI intelligent processing system comprises a sound recognition system, a fingering collection system and a dynamic collection system, the sound recognition system is electrically connected with a high-quality microphone mounted on a piano, and the high-quality microphone is electrically connected with the dynamic collection system. The fingering collection system is electrically connected with a plurality of groups of action collection sensors which are mounted on piano keys and respectively correspond to the keys, and the dynamic collection system is electrically connected with a high-resolution dynamic collection camera mounted on the piano; the AI intelligent processing system further comprises a personalized learning module, a diversified practice module, an interactive feedback and guidance module and a cloud updating and learning module. The invention relates to the technical field of musical instrument training, in particular to a piano partner training device based on the AI technology, which can provide powerful computing power and learning algorithms, provide personalized and real-time feedback and guidance for piano learners and further improve the training effect of the piano learners.

A piano includes a first key on an upper side rotatably supported at a rear end by a balance pin via a balance pin hole, and pressed by a player, a second key on a lower side rotatably supported at a central portion, the second key a front end of which the first key abuts, an action that is arranged below the second key and includes a whippen that is rotated upward to drive a hammer to perform string striking, a wire material that lifts the whippen in response to press of the first key, and a keystop rail that comes into contact with a pin rear portion of the first key from above and prevents lift of the first key in the vicinity of the balance pin hole to such an extent that the first key does not pry when the first key is pressed.

A piano string frame comprising a frame plate having a perimeter portion enclosing an aperture, and a strut bisecting the aperture. The perimeter portion has a bass pin portion to support a first end of a plurality of bass strings; a bass hitch portion to support a second end of a plurality of bass strings; a treble pin portion to support a first end of a plurality of treble strings; and a treble hitch portion. To support a second end of a plurality of treble strings. The strut extends from a first point to a second point. The second point is disposed at an end of the treble hitch portion to support a second end of a lowest pitched treble string, such that the strut is underneath any bass strings supported by the piano string frame, and such that no part of the frame plate is disposed over any strings.

The invention provides a self-adaptive rhythm electronic piano accompaniment system based on artificial intelligence, and the system comprises a single-key triggering module which is used for indicating an accompaniment process; the speed-control signal conversion module is used for converting the speed signal acquired by the inductive sensor into a music control signal; the storage module is used for storing accompaniment note sequence data of the song; and the artificial intelligence accompaniment generation module adjusts the accompaniment rhythm according to the trigger signal and the playing speed, and generates accompaniment sound or harmony in real time. The system further comprises a pitch calculation unit, a timbre parameter adjustment module, a timbre generation module, a dynamic range adjustment module, a timbre smooth transition module, an automatic harmony generation module, a volume dynamic adjustment module and an audio output module. The control unit receives a user instruction and adjusts system setting parameters. Intelligentization and self-adaption of the accompaniment can be achieved, self-adjustment of the playing speed of the accompaniment is achieved, the playing speed of the accompaniment is kept consistent with the singing speed of the user, the playing flexibility and expressive force are improved, and the playing experience is improved.

The invention relates to the technical field of piano pedal control, in particular to a pedal control method and system, the method is applied to a pedal system, the pedal system comprises an external unit and an additional unit, the external unit comprises an external pedal module, and the additional unit comprises a pedal driving module. The treading driving module is used for treading corresponding piano pedals according to the treading data; the external unit comprises a first external unit; correspondingly, the method comprises the following steps: acquiring a first external data source through a first external unit; generating a first analog signal according to the first external data source by adopting a first screening rule; the method comprises the steps that whether a pedal value is larger than a preset first treading threshold value or not is judged; if yes, identifying the pedal value as a to-be-simulated data source; generating a first analog signal according to the to-be-simulated data source; the first analog signal is transmitted to a treading driving module, and the treading driving module responds to the first analog signal to drive a piano pedal. According to the invention, the efficiency of practicing the pedaling technology by the user can be greatly improved.

The utility model discloses an interactive display device for a piano mechanical structure, and relates to the technical field of music education. The device comprises a key model structure, a pedal interaction structure and an audio-video playing unit. The key model structure comprises keys, supporting pieces, ejector rods, hammers and strings, one ends of the keys are connected with one ends of the ejector rods, the other ends of the ejector rods are connected with the hammers, and the striking direction of the hammers faces the strings; the pedal interaction structure comprises a pedal and a treading sensing unit, the downward pressing direction of the pedal faces the other end of the key, and the treading sensing unit is used for sensing the treading action of the foot of the human body on the pedal; and the audio-video playing unit is connected with the treading sensing unit and is used for playing a piano internal structure display video. According to the utility model, the interactive experience can be improved, the learning interest and participation sense of audiences are enhanced, and the complex mechanical principle of the piano becomes easy to understand and memorize, so that the effects of music education and musical instrument display are improved.

The invention discloses a soft reset type electric piano counterweight keyboard, and relates to the technical field of piano equipment. A key assembly is arranged at the top of the piano shell; a hinge frame is fixedly installed at the bottom in the piano shell through bolts, soft and feedback playing hand feeling is achieved through precise mechanical linkage, meanwhile, the position of an inductance piece is changed by sliding and extruding a clamping bead through a balance weight, and high-precision and high-reliability pressing force detection is achieved in combination with optical sensing auxiliary monitoring. The force signal is converted into keyboard'post-touch layer 'control, and a single-key or global tenuto mode is intelligently distributed; in addition, the key contact state is accurately captured through photoelectric induction, space capture is carried out on hand actions in combination with an infrared camera and a sensing radar, and real-time tactile feedback is provided through electromagnetic driving.

The invention relates to the field of piano intelligent display, in particular to a data set display method, system and device and a medium. The music score data comprises one or more of the following: standard time values, standard strength, standard fingering and standard pitches corresponding to the plurality of notes; the playing data of the user are obtained, the playing data of the user comprise data sets at multiple moments, and the data sets comprise one or more of the following data: time value data, force data, fingering data and pitch data; judging whether at least one data group is matched with the corresponding music score data or not; if yes, correlation comparison is carried out on the music score data and the matched data set, and the difference degree is calculated; and displaying the music score, and displaying the associated data group in a region corresponding to the notes. According to the playing data display method provided by the invention, visual optimization can be realized on the basis of ensuring the integrity of playing parameters.

The utility model discloses a boiler suspender installation lifting appliance, which belongs to the technical field of lifting appliances and comprises a fixing frame, the top of the fixing frame is fixedly connected with a lifting ring, installation blocks are uniformly and integrally formed in the fixing frame, an installation cavity is formed in each installation block and comprises an upper cavity body and a lower cavity body, and the upper cavity body and the lower cavity body are formed in the installation blocks. A locking groove is formed between the upper cavity and the lower cavity, a locking assembly is assembled in the upper cavity, one end of a connecting frame is rotationally connected into the lower cavity, and a clamping frame is assembled at the other end of the connecting frame. And a plurality of suspenders can be hoisted at one time. And the connecting frame is locked through the locking assembly, so that the stability between the lifting rods in the lifting process is enhanced, and the lifting rods are prevented from shaking and colliding. When the hanging rod is hung to a preset installation position, the locking assembly stops locking the connecting frame. At the moment, a constructor can adjust the position of the suspender according to the installation position of the suspender, and therefore the constructor can conduct installation construction of the suspender conveniently.

A key depression amount sensor device (100) that is installed below keys of a piano, which keys are aligned along a longitudinal axis, and that detects a depression amount of each of the keys, the key depression amount sensor device including: an electronic circuit board (112) including a plurality of optical sensors that respectively detects the depression amounts of the keys by reflection of light; a housing (110) that extends along the longitudinal axis and houses the electronic circuit board; a clamp mechanism (130) that sandwiches an action beam (300), which is positioned below the keys, in a longitudinal axis direction; and a connection mechanism (120) that connects the clamp mechanism and the housing.

The invention discloses a piano pedal with a height adjusting function, which comprises a box body, the piano pedal is rotatably mounted on one side of the box body, and a mounting groove is formed in the piano pedal; the fixing cylinder is arranged on the inner side of the mounting groove, one end of the fixing cylinder is provided with a connecting shaft which is in running fit with the mounting groove, and one end of the connecting shaft penetrates through one side wall of the piano pedal and is fixedly connected with a first worm gear; when the height of the piano pedal needs to be adjusted, the height of the adjusting plate can be driven to change by exposing the fixed cylinder and prolonging the telescopic distance of the telescopic rod, so that the bottom of a foot can be in direct contact with the adjusting plate, and normal treading operation of the piano pedal is realized; meanwhile, the angle of the fixing cylinder and the angle of the adjusting plate can be adjusted, the adjusting plate can be better attached to the bottom of the foot of the human body, in addition, in the process that the piano pedal is treaded, dust on the piano pedal can be cleaned, and the tidiness and attractiveness of the piano pedal are kept.

The invention discloses a thumb piano with double-layer keys that can be independently installed and adjusted. An independent supporting mechanism and a fixing mechanism are used, so that each key can be independently installed and adjusted. Only one specification of keys can be used, or keys of multiple specifications can be used, so that the manufacture, installation and replacement of keys are more convenient. Various scale arrangements can achieve alignment of the key playing ends, so that the hand feel is more comfortable. When noise or mute occurs, the tension of the keys can be adjusted to solve the problem.

The utility model provides a folding rotating shaft structure which comprises a rotating shaft and two rotating connecting pins connected with the rotating shaft in a rotating mode, the cross section of the rotating shaft is shaped like a Chinese character'hui ', two connecting holes are formed in the middle of the rotating shaft in a spaced mode, and one rotating connecting pin is arranged in each connecting hole. And the two ends of the rotary connecting pin extend out of the connecting holes. According to the folding rotating shaft structure, the two piano bodies to be folded are connected through the rotating connecting pins, the rotating shaft cannot protrude and can be completely contained in the piano bodies by arranging the two rotating connecting pins, the bottoms of the piano bodies are flat after the piano bodies are opened, and the piano can be flatly placed on a table top without adding foot pads.

The invention discloses a piano teaching interaction method based on a skeleton point image recognition technology. The method comprises the following steps: S1, collecting video data of hand actions when a user plays a piano; s2, carrying out preprocessing on the video data; s3, extracting hand skeleton point data by using the skeleton point extraction model to obtain a skeleton key point data set; s4, training a hand action recognition network model by using the extracted skeleton key point data set and the loss function; and S5, inputting the real-time output of the skeleton point extraction model into the trained hand action recognition network model, and detecting the correctness of the hand posture. According to the method, the motion information of the hands of the piano player can be captured and analyzed in real time with high precision, and targeted and personalized teaching feedback can be realized through deep mining of skeleton point data, so that the interactivity and teaching efficiency of piano teaching are improved.

The invention relates to the technical field of musical instrument production and polishing, in particular to an automatic polishing device for musical instrument production and processing, and provides the automatic polishing device for musical instrument production and processing for solving the problem that existing equipment cannot polish a guitar case. A grinding belt capable of moving is arranged on the transverse frame, a vertical plate is arranged at the upper end of the bottom plate, a supporting plate capable of moving front and back and up and down is installed on the vertical plate, a clamping device is arranged at the upper end of the supporting plate and comprises two clamping bases used for clamping and fixing a guitar box, and when the supporting plate moves backwards, a structure that the guitar box moves backwards and moves leftwards and rightwards in a reciprocating mode can be formed. When the supporting plate moves downwards, a structure for turning over the clamping base and the guitar box can be formed. And the four end faces of the guitar box can be automatically polished instead of manual operation, manpower resource occupation is reduced, and the polishing efficiency is improved.

The invention provides a pipeline leakage comprehensive monitoring device suitable for different pipe diameters, which is characterized by comprising connecting members, a plurality of connecting members are sequentially hinged to form a chain type structure, a sensor fixing hole and a probe hole are formed in each connecting member, and the probe hole is formed in the center of each connecting member. Sensor fixing holes are formed in the periphery of the probe hole, the monitoring device is fixed to the connecting component through the sensor fixing holes, the connecting component hinged to form a chain type structure is wound around the pipeline, a probe of the monitoring device is attached to the outer wall of the pipeline through the probe hole, a base station is arranged on the ground, and a solar device is arranged on the base station. And the base station is in data connection with the monitoring device. The device is mainly suitable for monitoring easy-to-damage point positions of pipelines, can adapt to pipelines with different pipe diameters, combines various monitoring technologies such as infrared temperature measurement and sound wave monitoring, enables the monitoring result to be more accurate, is made of corrosion-resistant materials such as stainless steel, and can resist corrosion and bear a low-temperature environment.

The utility model discloses a piano cover capable of flexibly rotating and positioning for a new energy electronic piano, which relates to the technical field of electronic musical instruments and comprises a piano body and a flip cover, and rotating mechanisms are fixedly connected to positions, close to the rear side, of the left and right sides of the piano body and positions, close to the front side, of the left and right sides of the flip cover. The outer side of the rotating mechanism is fixedly connected with first connecting rods, the two first connecting rods are symmetrically distributed left and right, the position, close to the front side, of the lower surface of the turning cover is rotationally connected with a turning plate, and the positions, close to the left side and the right side, of the inner side of the turning plate are fixedly connected with turning mechanisms. According to the piano cover for the new energy electronic piano capable of being flexibly rotated and positioned, the turning plate is turned down and fixed through the turning mechanism, and the turning cover is rotated into a step shape by virtue of the first connecting rod, so that the turning cover can be used as a placement rack for articles such as a music score, and the piano cover is more diversified in function, convenient to operate and integrated with more functions; and the problem that the overall size is increased due to dispersion of functional parts is avoided.

The utility model discloses a digital piano with light guide keys, and relates to the technical field of digital pianos. The top side of the musical instrument frame lower shell is fixedly provided with a musical instrument frame upper shell through bolts. A mainboard is fixedly arranged on the top side of the piano frame upper shell, through rotation of the piano key body, on one hand, a reset piece on the rotating frame is pulled to be conducted, and on the other hand, a bottom button is extruded to trigger a PCB signal board to generate an electric signal and transmit the electric signal to a functional key board, and the functional key board supplies power to an LED lamp board; the generated colorful RGB light source enters the transparent light guide plate through the concave semicircle and the side opening, and is precisely scattered by the built-in array reflectors to form a multi-angle, large-range, uniform and soft lighting effect, and the diamond structure on the surface of the transparent light guide plate further prevents strong light dazzling and optimizes visual experience; and secondly, the loudspeaker component on the inner side is synchronously activated to give out corresponding note sound, so that instant and immersive linkage feedback of dynamic colors of sound and light is realized when a user presses the light guide keys each time.

The invention relates to the field of sensors, in particular to a pressure-tactile sensor based on a common electrode structure and application thereof, and the pressure-tactile sensor comprises a first electrode layer, an air dielectric layer, a conductive layer, a mixed pressure sensitive layer and a second electrode layer from top to bottom, wherein the air dielectric layer is formed at the middle position by arranging insulating cushion blocks at the edge between the first electrode layer and the conductive layer, and an output electrode layer is arranged between the insulating cushion block at one side and the conductive layer. The sensor can be used in wearable health equipment to realize health monitoring, can be integrated to a signal acquisition and processing system, and is combined with a graphical programming platform to realize accurate control of electronic piano key tones and volumes. Good application prospects and important technical development potential are shown in the fields of intelligent interaction interfaces, intelligent musical instruments, human-computer interaction and the like.

The invention provides a multi-mode interactive piano teaching and training system, and relates to the technical field of piano teaching and training, and the system carries out the cooperative fitting of a reciprocating motion track, obtains a cooperative contraction rule of a finger of a player on a piano keyboard, determines a fingering control label during the fingering rhythm synchronization according to the cooperative contraction rule, and carries out the fingering control. The fingering control label is used for carrying out tactile path guidance on the fingering decision attribute during playing; performing cross comparison on the rhythm synchronization data and the dynamic playing information to obtain a rhythm deviation identifier during music style conversion, and further performing auditory perception regulation and control on a beat point time sequence interval during playing through rhythm compensation constraint; and carrying out interactive fusion on the finger moving decision attribute after tactile path guidance and the beat point time sequence interval after auditory perception regulation and control, generating a playing manifold without a track, and projecting the playing manifold to the surface of the key in real time. According to the method and the device, real-time guidance of piano teaching can be formed in multi-modal interactive fusion teaching, so that the training adaptability of a player is improved.

The utility model discloses a piano music stand which comprises a base, a supporting rod arranged at the upper end of the base and a placing plate arranged at the upper end of the supporting rod, a supporting plate is arranged at the bottom end of the placing plate, a baffle is arranged at the end, away from the placing plate, of the supporting plate, and the piano music stand further comprises a first pressing mechanism and a second pressing mechanism, the pressing plate is arranged at the lower end of the placing plate and is used for pressing the bottom end of the piano score; the second pressing mechanism is arranged at the upper end of the placing plate and is used for pressing the top end of the piano score; and the rotating mechanism is arranged on the supporting rod and is used for rotating the placing plate. According to the piano score pressing device, the first pressing mechanism and the second pressing mechanism are arranged, the first pressing mechanism presses the bottom end of a piano score, the second pressing mechanism presses the top end of the piano score, and the first pressing mechanism and the second pressing mechanism can press the piano scores of different sizes, so that the position of the piano score on the supporting plate is stable; and the falling condition is avoided, so that the influence on the use feeling of a user is avoided.

The invention discloses a novel thumb piano, in which a sound-producing piano piece is installed on a membrane structure or a drum skin, and the thumb piano comprises an entire piano body and a piano bracket fixed on the entire piano body, and a spring piece for playing music is installed on the piano bracket; the entire piano body comprises a drum skin arranged on the top surface, and a general support fixed on the lower side of the drum skin for supporting the drum skin; the drum skin is closed and fixedly connected with the general support to form a sound cavity with an opening downward. The arrangement of the drum skin in the invention enables the player to play the spring piece with the thumb, and when the spring piece vibrates, the vibration of the spring piece drives the bottom plate and the drum skin to vibrate at the same time, so that the sound produced by the thumb piano is thick, pleasant and louder; furthermore, when the thumb piano is held in the hand and played, the sound cavity formed between the drum skin and the general support will make the sound waves generated by the drum skin during vibration hit the inner wall of the sound cavity and then fold back into the air, so that the sound waves rotate in the sound cavity to form a simulated echo state; so that the sound produced by the thumb piano is more ethereal, mellow and more pleasant to the ears.

The present application provides a multimodal interactive piano teaching and training system, which relates to the technical field of piano teaching and training. The system performs collaborative fitting on the reciprocating motion trajectory to obtain the collaborative contraction rules of the player's fingers on the piano keyboard. The fingering control labels during fingering rhythm synchronization are determined according to the collaborative contraction rules, and then the fingering control labels are used to guide the fingering decision attributes during playing by tactile paths; the rhythm synchronization data and dynamic playing information are cross-compared to obtain the rhythm deviation identifier during music style conversion, and then the beat timing spacing during playing is auditory perceptually regulated by the rhythm compensation constraint; the fingering decision attributes after tactile path guidance and the beat timing spacing after auditory perceptual regulation are interactively fused to generate a playing manifold of an unseen piece of music and project it onto the key surface in real time. The present application can form real-time guidance for piano teaching in multimodal interactive fusion teaching to improve the player's training adaptability.

The utility model relates to the technical field of lifting devices, and discloses an electromechanical engineering installation auxiliary lifting device which comprises a transfer base, a lifting appliance arranged on the upper surface of the transfer base, grooves formed in the two sides of the transfer base and an adjusting mechanism arranged in the transfer base. The adjusting mechanism is used for adjusting the distance between the transfer base and the ground to form support, the adjusting mechanism comprises four second sliding grooves formed in the lower surface of a bottom plate of the transfer base, the supporting mechanism is arranged on the transfer base and used for supporting and preventing rollover when the lifting appliance runs, and the supporting mechanism comprises two first sliding grooves; according to the auxiliary lifting device for electromechanical engineering installation, the four universal wheels can be retracted into the transfer base, the transfer base makes direct contact with the ground, in this way, the contact area between the transfer base and the ground can be enlarged, stable supporting can be formed when the lifting device is used, and more convenience is achieved.