681results about How to "Reduce physical exertion" patented technology

The invention discloses a flexible cable hanging and picking device for 10 kV bypass bridging and a use method thereof, and belongs to the technical field of bypass operation, the flexible cable hanging and picking device for 10 kV bypass bridging comprises a bypass cable fixing hanging plate device, a bypass cable traction locking device and a bypass hanging and picking tool quick-change device; the bypass cable fixing hanging plate device is used for fixing a bypass cable head, and the bypass cable traction locking device is used for pulling a whole formed by the bypass cable fixing hanging plate device and the bypass cable head and is in transmission fit with the bypass cable fixing hanging plate device. According to the invention, traction and locking of the flexible cable for 10kV bypass bridging can be realized in a full-automatic manner, and the main cable base instead of the bypass cable head can still bear most weight after traction in place, so that the operation efficiency is improved, in addition, manual traction of the bypass cable is not needed, and the labor intensity of workers is reduced. The physical exhaustion of the operating personnel is greatly reduced; and the safety of the operating personnel is ensured.

The invention relates to the technical field of power-assisted robots, in particular to a self-adaptive control lower limb hydraulic power-assisted exoskeleton robot system which comprises a waist supporting device, a leg supporting device, a foot supporting device, a hydraulic power-assisted assembly, an attitude sensor, a lower limb force sensor, a wearable electromyogram sensor, a step obtaining module and a data analysis module. The system can intelligently adjust the output power of the hydraulic power assisting assembly according to the motion posture of the exoskeleton, the pressure data of the foot supporting device and the wearing target muscle state so as to provide proper walking assisting power and bearing support, and the system can further conduct secondary adjustment and fatigue alarm by monitoring the pace frequency and the muscle fatigue degree in real time. The exoskeleton assisting power output power in the carrying process is gradually adjusted according to the comparison result between the weight of the wearing target and the weight of the to-be-moved object, so that assisting power provided by the exoskeleton robot is effectively matched with the weight of the to-be-moved object when the wearing target carries the object.

The invention relates to the technical field of medical instruments, and provides an integrated wearable soft multi-mode manipulation treatment instrument, which comprises a glove main body, the glove main body is divided into five finger sleeve parts sleeved on fingers, a palm part located at the palm, a hand back part located at the hand back and a wrist part located at the wrist, a connecting disc is arranged on the outer surface of the hand back part, a vibration head is arranged on the side, away from the hand back part, of the connecting disc, and vibration is generated by a micro vibration motor in the connecting disc and transmitted to the vibration head to assist in manipulation treatment. According to the technical scheme, fixed-point or movable massage stimulation can be carried out on areas needing to be focused, meanwhile, palms and fingers can be used for implementing other treatment techniques such as pressing and kneading, the design can be easily matched with all parts of the body, especially the areas such as the perineum and the head and neck which are difficult to treat through traditional equipment, and the treatment effect is good. And the functions of heating and releasing a magnetic field for treatment are matched to form a synergistic effect, and the treatment effect is jointly improved.

The utility model relates to the technical field of stirring tanks, in particular to a mortar stirring tank which comprises a bottom plate, a tank body is fixedly connected to the top of the bottom plate, a support is fixedly connected to the top of the bottom plate, a stirring assembly used for uniformly stirring raw materials in the tank body is installed at the bottom of the support, and a feeding assembly is installed on one side of the tank body. The feeding assembly comprises a guide frame communicating with the tank body, an extension frame is rotationally connected between the two sides of the inner wall of the guide frame, the end, away from the guide frame, of the extension frame communicates with a discharging frame, a pedal is rotationally connected to the top of the bottom plate, and a first traction rope is fixedly connected between the extension frame and the pedal. And a transverse groove allowing the first traction rope to penetrate through is formed in the bottom of the guide frame, the stirring assembly comprises a rotating rod rotationally connected with the bottom of the support, and the rotating rod movably extends into the tank body. The problems that raw materials are difficult to transfer into the stirring tank conveniently, and physical output of feeding of workers is reduced are solved.

The invention relates to the technical field of gearboxes, in particular to an electric gearbox assembly which comprises a box body and a motor, a power transmission shaft is arranged at the power output end of the motor, an intermediate shaft is arranged in the middle of the box body, a synchronous gear ring is slidably connected to the middle of the intermediate shaft, a power output shaft is arranged in the middle of the lower end of the box body, and a shifting gear shifting mechanism is arranged in the middle of the box body. The shifting gear shifting mechanism is composed of a mounting column, a second spring, a second steel ball, a four-wheel-drive shifting fork, a locking column and a sleeve, the box body is formed by splicing a left box body and a right box body, transmission flanges are fixedly connected to the two ends of the power output shaft, and a motor connecting cover is fixedly connected to the connecting position of the left side of the box body and the power transmission shaft; a gear shifting rotating arm is rotationally connected to the outer side of the box body, the two ends of the gear shifting rotating arm penetrate through the box body, and a rocker arm plate is fixedly connected to the upper end of the gear shifting rotating arm.

The invention discloses a polishing process for a door plate of a control cabinet. The polishing process comprises the steps of abrasive paper mounting, parameter setting, workpiece checking and fixing, polishing track setting, polishing, cleaning and detecting. The grinding device has the advantages that the movement track is set for the grinding mechanical arm, the grinding machine arranged at the end of the grinding mechanical arm is used for grinding operation, physical strength expenditure of grinding operators is reduced, labor intensity is lowered, rough grinding, accurate grinding and polishing can be completed at a time through the grinding mechanical arm, working efficiency is improved, frequent equipment replacement is avoided, and production cost is reduced. In addition, a polishing worker does not need to hold a polishing machine to directly contact with a workpiece for polishing, suction of polishing dust is reduced, the probability of occupational diseases is reduced, standardization of polishing operation is guaranteed through a fixing tool, consistency of surface treatment of the door sheet is guaranteed, the whole process guarantees high efficiency, safety and standardization of production, product quality is improved, and the production cost is reduced. The cost is reduced.

The invention relates to the field of medical instruments, in particular to a body position fixing auxiliary device for muscle-bone ultrasonic examination, and provides the body position fixing auxiliary device for the muscle-bone ultrasonic examination for solving the problem that a specific examination body position is difficult to maintain for a patient with poor physical strength, the body position fixing auxiliary device for the muscle-bone ultrasonic examination comprises a bed board, and two leg supporting devices are arranged on the front side of the upper end of the bed board; each leg supporting device comprises a thigh supporting plate capable of rotating, a supporting pad capable of moving up and down is arranged at the front end of each thigh supporting plate, a shank supporting plate capable of swinging up and down is arranged at the lower end of each supporting pad, and each leg supporting device further comprises a locking mechanism capable of being opened and closed. When the locking mechanism is opened, the thigh supporting plate, the supporting pad and the shank supporting plate can be limited and fixed; the medical examination bed can assist a patient in adjusting a specific examination position, can be supported and fixed after adjustment, and is matched with examination operation of a doctor.

The present invention discloses a double-drill-bit building wall drilling device, including a shell, a power device, a cooling device and a drilling device, characterized in that a power device is provided at one end of the shell, a cooling device is provided at one side of the power device, a drilling device is connected to one side of the cooling device, and the drilling device includes a first transmission mechanism and a drilling mechanism. Beneficial effects: When the power device is running, the drilling device is driven to drill holes in the wall, and the cooling device is used to cool the drilling device while drilling holes, so that the temperature of the drilling device is prevented from being too high and damaged, and the service life of the machine can be effectively extended. When the power device is running, the drilling mechanism is driven to run through the first transmission mechanism, and the wall is drilled through the coaxial reversal of drill bit 1 and drill bit 2.

The invention discloses an exoskeleton robot abnormal working condition automatic response and risk avoiding decision-making method, and relates to the technical field of exoskeleton, and the method comprises the steps: deploying a plurality of types of sensors to synchronously collect environment data, human physiological data and exoskeleton operation data, and carrying out the preprocessing to remove interference; through fusion of abnormal harmonic detection and a finite-state machine, dangerous working conditions such as wind speed abrupt change are identified, and grades are judged; monitoring eye movement and heart rate variability data in real time, quantifying cognitive load and grading; a decision rule base is constructed, and joint locking and other adaptive risk avoiding decisions are generated in combination with working condition types, grades and cognitive loads; the controller drives the execution mechanism to execute a decision, continuously monitors data at a frequency, dynamically adjusts the decision or recovers a normal mode. According to the method, dangerous working conditions are accurately identified through multi-source data fusion, adaptive risk avoiding measures are automatically triggered, a power assisting strategy is dynamically adjusted in combination with cognitive loads, and operation flexibility and physical output are balanced.

The utility model discloses an auxiliary device for leveling and installing a road manhole cover. The auxiliary device comprises a leveling supporting component, a transparent adjusting disc and an adjusting component, the leveling and jacking assemblies are embedded in a concrete pipe base used for installing a well lid, the transparent adjusting disc is placed on the tops of the leveling and jacking assemblies, and the size of the transparent adjusting disc is consistent with the size of the well lid needing to be installed. The adjusting assembly is arranged in the middle of the transparent adjusting disc and faces a curb on the outer side of the well lid, the top faces of the multiple sets of leveling and jacking assemblies are flush with the mounting face of the bottom face of the well lid, and therefore the well lid is arranged on the multiple sets of leveling and jacking assemblies and embedded in the road surface in a pouring mode. The utility model relates to the technical field of road construction, and can solve the problems that in the prior art, when a heavy well lid is installed, operation is tedious, and physical output is large.

The invention discloses a pin-removing device for replacing an insulator string at a ground potential. The pin-removing device comprises a main frame, a roller, a rack, an M-shaped pin-removing head and an R-shaped pin-removing head, the roller is rotatably arranged in the main frame; the rack is movably arranged in the main frame and is in meshed connection with the roller; the M-shaped pin removing head is fixed at one end of the rack; and the R-shaped pin removing head is fixed at the other end of the rack. Due to the fact that the M-shaped pin taking head and the R-shaped pin taking head are installed at the left end and the right end of the rack respectively, the problem that a traditional tool is difficult to take out an R-shaped pin needle is solved, and the innovatively developed pin taking device can take out the R-shaped pin easily and rapidly. And meanwhile, the M-shaped pin taking head completes pin taking in the mode that the tail of the pin is pushed forwards, the R-shaped pin taking head completes pin taking in the mode that the head of the pin is pulled reversely, and the two kinds of operation share one torsion transmission stroke and one set of in-place locking hole position. And the tool is simplified and the self-weight is reduced.

The utility model relates to the technical field of expansion joints, in particular to a precise anti-impact expansion joint with an anti-sinking function, which comprises two bases, mounting cavities are arranged on opposite sides of the bases, concrete base blocks are fixedly mounted on the inner walls of the mounting cavities, guide components are arranged in the mounting cavities, and the guide components are arranged on the inner walls of the concrete base blocks. And the guide assembly comprises a guide supporting plate, a telescopic assembly is fixedly installed at the center of the top of the guide supporting plate, and sliding cavities are formed in the tops of the opposite sides of the base correspondingly. The problems that the manufacturing cost is high, the machining process is complex, the waterproof performance is common, cleaning is inconvenient, and in the expansion and contraction process of the expansion joint, the comb plate is prone to damage, difficult to repair and common in anti-sinking performance are solved, the anti-sinking effect is achieved, impact resistance can be achieved, the service life of the expansion joint is prolonged, and the service life of the expansion joint is prolonged. The cleaning period of the expansion joint is prolonged, and physical exhaustion of workers is reduced.

The invention provides conveying equipment and a conveying method, the conveying equipment is used for container production, and the conveying equipment comprises a first conveying assembly and a second conveying assembly. The first conveying assembly is arranged in the first horizontal direction, and the second conveying assembly is arranged in the second horizontal direction and connected to the first conveying assembly. The first conveying assembly is provided with a bearing face, a first station and a second station are formed on the bearing face, and the first station is used for bearing a container to move in the first horizontal direction. The number of the first stations is at least two, and the adjacent first stations are arranged at intervals in the first horizontal direction. The second station is at least located on one side, in the first horizontal direction, of the first station, and a supporting plate is arranged at the second station so as to bear operators to move synchronously with the container located at the first station and conduct operation on the container. According to the conveying equipment, the operation safety of operators can be ensured, the operators at the second station can move synchronously with the containers at the first station, and the operation quality and efficiency are ensured.

The invention discloses an adjustable automatic control head needle twisting device. Comprising a base, a cylindrical seat fixed to the top of the base, a rotating chassis rotationally installed at the top of the cylindrical seat, a top column fixed to the top of the rotating chassis, a top plate installed at the top end of the top column, a lifting plate arranged at the bottom of the top plate, a lifting structure arranged between the lifting plate and the top plate, and a first rotating motor fixed to the top of the lifting plate. The device further comprises an adjustable control system. According to the adjustable automatically-controlled scalp needle twisting equipment provided by the invention, through an accurate control system and mechanical design, automation of twisting operation is realized, the precision of twisting angle and force is remarkably improved, the problem of instability of manual operation is solved, physical exhaustion of an acupuncturist is reduced through automatic operation of the equipment, and the working efficiency is improved. The device is simple in structure and convenient to use, the device can concentrate on treatment, the overall treatment efficiency is improved, the safety of equipment operation in the treatment process is guaranteed through multiple safety protection measures, and possible medical negligence is avoided.

The utility model discloses a laminated crisping device for bread processing, which relates to the field of bread processing, and comprises a plate surface, the upper end of the plate surface is fixedly connected with a mounting seat, the two sides of the upper end of the mounting seat are fixedly connected with mounting rods, and the opposite sides of the mounting rods are fixedly connected with compression roller components. By the adoption of the structure, the threaded piece moves on the surface of the adjusting lead screw under the action of the adjusting lead screw by rotating the adjusting lead screw, and the extrusion roller is rotationally connected with the threaded piece so that the extrusion roller can move while the threaded piece moves; through the arrangement of the driving roller and the extrusion roller, the distance between the extrusion roller and the driving roller can be changed under the movement of the extrusion roller, so that the extrusion roller can be conveniently adjusted, and puff dough can stably pass through the extrusion roller and the driving roller under the transmission of the conveying belt; and under the action of the protection plate, the risk that the puff dough falls onto the ground can be avoided.

The invention discloses an adjustable automobile new energy charging pile, and relates to the technical field of new energy charging piles, the adjustable automobile new energy charging pile comprises a base, and the top end of the base is provided with a charging pile main body; the device comprises a base, the base comprises a supporting seat, the top end of the supporting seat is fixedly connected with two sets of guide rails, the top ends of the two sets of guide rails are slidably connected with a sliding plate, a synchronous belt assembly is installed on the inner wall of the base, the top end of the synchronous belt assembly is fixedly connected with a push rod, and the push rod is slidably connected to the bottom end of the sliding plate; the bottom end of the base is slidably connected with a balancing weight. When the vehicle needs to be charged, the direction of the charging port is selected on the main machine, and then the synchronous belt assembly is used for driving the main machine to move, so that the main machine moves to the side close to the charging port, a charging gun can be inserted into the charging port more conveniently in the charging process, the problem that the length of a cable on the charging gun is not enough is solved, and the charging efficiency is improved. Therefore, the charging pile is higher in adaptability in the using process.

The invention belongs to the technical field of transformer substation protection equipment, and particularly provides an induction type ratproof device and a using method thereof.The induction type ratproof device comprises a supporting structure, a protection baffle, a reset spring, an induction module, a control module, a driving structure, a transmission structure and a power module for supplying power to the whole device; by integrating the sensing module and the control module, the device can intelligently recognize approaching of personnel in the transformer substation and automatically adjust the opening state of the protection baffle. In high-frequency operation scenes such as daily inspection, switching operation, exception handling and heavy device carrying, workers do not need to frequently cross the protective baffle, physical output of workers is remarkably reduced, task execution time is shortened, and operation and maintenance efficiency is greatly improved.

The invention discloses a handheld laser metal cladding welding device, which belongs to the technical field of laser welding, and has the technical key points that the handheld laser metal cladding welding device comprises a supporting table, a welding gun body and a grab handle, and a welder can be allowed to easily adjust the angle of the welding gun according to the specific shape and position of a workpiece through an arranged multi-angle extension control mechanism; meanwhile, by adjusting the length of the welding gun, the application range of welding operation is greatly widened, a power supply battery can be replaced for power supply without shutdown through the arranged battery replacement mechanism, production stagnation caused by battery replacement is avoided, and the production efficiency is improved. By means of the arranged table board welding mechanism, placing and fixing can be conducted when an operator does not want to continue holding welding machining due to fatigue, in addition, the welding gun can be correspondingly driven to conduct rotary welding machining through the rotary base, and the application range of welding machining is widened; the welding machine has the advantages that the welding machine can be conveniently held by hands or placed on a table board for welding, batteries can be conveniently replaced for machining without shutdown, and the welding angle can be freely adjusted for machining.

The utility model relates to the technical field of garden landscapes, and discloses a three-dimensional greening device for garden landscapes, which comprises a support frame, a first guide rail, a first sliding block, a moving plate, a first motor, a gear, a rack, a rotating shaft and a rotating plate. In the using process, any motor is controlled to work, and under the guiding and supporting effects of the first guide rail and the first sliding block and the inter-tooth meshing effect of the gear and the rack, the movable plate connected with the motor can be driven to do linear motion. Therefore, each motor is controlled to work, and the height of each moving plate can be adjusted. And compared with a manual adjustment mode, physical output of maintenance personnel is reduced. Moreover, each rotating shaft is controlled to rotate, so that the rotating plate connected with the rotating shaft can be driven to rotate, the green plants on the rotating plate are driven to rotate, and visitors can visit conveniently and the green plants can perform photosynthesis conveniently.

The utility model provides a gear grabbing and lifting device which comprises a supporting frame, one end of the supporting frame is fixedly connected with a swing assembly, one end of the swing assembly is rotationally connected with a material taking push rod, one end of the material taking push rod is fixedly connected with an overturning assembly, one end of the overturning assembly is fixedly connected with a clamping assembly, and one end of the clamping assembly is fixedly connected with a clamping ring. One end of the clamping ring is slidably connected with a plurality of rubber clamping blocks, the rubber clamping blocks and one end of the clamping ring are fixedly connected with springs, the swing assembly comprises a driving motor, an arc-shaped groove, a swing connecting rod and a limiting shaft, and one end of the driving motor is fixedly connected to the supporting frame; during clamping, a material taking push rod can be driven to be in a horizontal state firstly, then the material taking push rod extends to clamp a gear through a clamping assembly, then the material taking push rod is rotated to be in a vertical state, an overturning assembly can enable the gear to rotate, and the gear is placed on a lower plane in a horizontal state to be clamped, so that various risks of manual taking and placing are reduced; and physical output of workers is reduced.

The invention provides a goat improved variety breeding auxiliary device for a plateau region, and relates to the technical field of goat breeding, the goat improved variety breeding auxiliary device comprises a base, and a support is arranged on the base; the limiting mechanism is arranged on the base; one end of the monitoring mechanism is connected with the support, and the other end of the monitoring mechanism is used for connecting buttocks of good rams; and the push-pull mechanism is arranged on the monitoring mechanism and is used for assisting the good rams to carry out native mating. The movement position of the ewe is limited through the limiting mechanism, the process of chasing of good rams and ewes is avoided, and the push-pull distance and frequency of the push-pull mechanism are set based on the average value of the movement distance and frequency monitored by the monitoring mechanism; the push-and-pull mechanism drives the buttocks of the good rams to reciprocate according to the set push-and-pull distance and frequency, the good rams are effectively assisted in mating and breeding in plateau areas, physical output in the mating and breeding process of the good rams is reduced, and the mating and breeding frequency of the good rams is guaranteed.

The present invention discloses an automated device for material feeding, including a device body and a positioning device, wherein the positioning device is provided at the top left side of the device body, and a moving device is provided at the top right side of the device body, and a clamping device is provided inside the moving device, wherein the horizontal height of the positioning device is smaller than the horizontal height of the moving device, and the positioning device and the clamping device are installed in a movable manner. The automated device for material feeding has the characteristic of reducing the labor intensity of the staff. During use, compared with the traditional device for material feeding, the moving device and the clamping device are provided, and the pipes are stored in the material collection box. The moving device and the clamping device work together to place the materials inside the material collection box on the surface of the workbench, and the staff only needs to manually operate when taking the materials, thereby reducing the steps of manual operation, and the physical exertion of the staff is correspondingly reduced, which greatly reduces the labor intensity of the staff.

The utility model relates to the technical field of aluminum alloy sheet metal forming, in particular to a general aviation aircraft aluminum alloy skin micro-plastic device which comprises a bottom foundation base, a posture adjusting structure, a pressurizing device and a control system. The bottom foundation base is of a flat plate structure and fixed to the ground. The posture adjusting structure is mounted on the upper surface of the bottom foundation base; the pressurizing device is mounted on the posture adjusting structure and is used for precisely shaping the workpiece; the pressurizing device comprises a power part and a force application contact; the power component is fixed at the lower end of the posture adjusting structure; the force application contact is fixed to the output end of the power component, and the power component provides power to drive the force application contact to apply pressure. The pressure applying force, frequency and position are controlled through the posture adjusting structure and the pressurizing device, compared with a traditional manual beating method, the shaping precision of the sheet metal part can be guaranteed, the labor intensity of workers can be effectively relieved, and the working comfort level can be effectively improved.

The gynecologic and obstetric sickbed comprises a gynecologic and obstetric bed body, guardrails are fixedly installed on the two sides of the top face of the gynecologic and obstetric bed body, supporting leg frames are fixedly installed on the periphery of the bottom face of the gynecologic and obstetric bed body, a protection frame is fixedly installed on the surface of the gynecologic and obstetric bed body and located beside the guardrail on one side, and a shaking assembly is arranged in the protection frame. One end of the rocking assembly is fixedly connected with a sliding pad, and a crib is fixedly mounted at the top of the sliding pad and rocks along with swinging of the rocking assembly; the sliding pad is movably arranged on the surface of the supporting assembly. A monitoring assembly is fixedly installed on the surface of the supporting assembly and located on one side of the baby crib. The monitoring assembly monitors swinging and stopping of the baby crib to play or stop music. The baby crib is convenient for a puerpera to shake, so that the effect of comforting the mood of the baby is achieved, the puerpera does not need to get up strenuously, physical exhaustion of the puerpera is reduced, the puerpera can fall asleep quickly after comforting the mood of the baby, and rest and recovery of the puerpera are guaranteed.

The present invention provides an endoscope trolley and a medical robot. The endoscope trolley includes a trolley body, a first telescopic arm and a second telescopic arm. The trolley body includes a base and a workbench. The workbench can be raised and lowered on the base. The first telescopic arm can be rotatably installed on the workbench. The second telescopic arm is fixedly installed on the workbench. The lengths of the first telescopic arm and the second telescopic arm can be adjusted. The first telescopic arm is used to install an endoscope drive device and an endoscope instrument switching device, and the second telescopic arm is used to install an endoscope conveying device. The endoscope trolley provided by the present invention can realize the switching and conveying of endoscope instruments and the bending, rotation and advance and retreat of the endoscope through the endoscope instrument switching device, the endoscope instrument conveying device, the endoscope drive device and the endoscope conveying device. It has rich operating functions and can effectively reduce the physical exertion of the operator.

The utility model discloses a movable auxiliary support material rack for packaging, decorating and printing, which comprises a flat plate, a control cabinet is fixedly mounted at the rear end of the outer surface of the upper end of the flat plate, and a lifting material rack is fixedly mounted in the middle of the outer surface of the upper end of the flat plate. The lifting material frame comprises a top support, a side face support, a hydraulic rod, a lifting plate, a cantilever, a threaded hole, a sliding block, a reinforcing plate and a concave sliding rail, first limiting grooves are formed in the left side and the right side of the front end of the outer surface of the upper end of the flat plate, a second limiting groove is formed in the middle of the outer surface of the upper end of the flat plate, and the number of the first limiting grooves is two. According to the movable auxiliary supporting material frame for packaging, decorating and printing, through the arrangement of the lifting material frame, lifting of materials is facilitated, consumption of physical strength of workers is reduced, the feeding efficiency is improved, through the arrangement of the material blocking shaft, limiting of the materials is facilitated, and the safety is improved.

The utility model discloses an operating bed which comprises a base, a bed body is fixedly assembled at the upper end of the base, and a bed board expansion adjusting structure is assembled at the right end of the bed body. A bed board extension adjusting structure is assembled at the right end of the bed body, so that an extension bed board can be drawn out from a rectangular slot to support the flat legs of a patient; when the lithotomy position needs to be kept, the extension bed board can be inserted into the rectangular insertion groove, the position of the extension bed board is limited and fixed by screwing the first hand-screwing bolt, and the two separated legs of the patient are supported through the adjustable leg supporting structure at the right end of the extension bed board, so that the lithotomy position of the patient is kept; by means of the mode, it is avoided that nurses repeatedly disassemble and assemble the leg plate in the operation process, operation is easier, physical exhaustion of the nurses is reduced, and meanwhile the smooth degree of the operation is guaranteed.

This invention discloses a land surveying and measurement device and its usage method, relating to the field of land surveying technology. It includes a surveying instrument and a tripod assembly and an adjustable toe assembly that provide support for the instrument. The adjustable toe assembly can be switched to adapt to the setup needs of hard and soft ground. The adjustable toe assembly includes a foot spike unit, a rubber foot unit, and a quick-lock unit. This invention, by setting up an adjustable toe assembly, allows for purely foot-based operation: stepping on a second pedal to lower and lock the instrument, and stepping on a linkage deflection component to unlock and reset it. Combined with the fact that the hands only need to lift and lower the support frame, it completely liberates the surveyor's waist. In long-distance operations with frequent terrain changes, it significantly reduces physical exertion. Furthermore, through the linkage structure of the "pedal + quick-lock unit," the lowering and locking or unlocking and resetting of the rubber foot covers can be completed simultaneously within seconds, greatly shortening the instrument setup time.

The utility model is suitable for the technical field of tricycle carriages, and provides an electric folding tricycle carriage which comprises a first bottom plate, and a front baffle is arranged on the first bottom plate. The two first side plates are mounted on the first bottom plate in a hinged manner; the second bottom plate is detachably installed on one side of the first bottom plate, two second side plates are installed on the second bottom plate in a hinged mode, and a rear baffle is arranged on the second bottom plate; the mounting grooves and the sliding grooves are formed in the first bottom plate and the second bottom plate respectively; and the multiple sets of driving mechanisms are arranged on the first bottom plate and the second bottom plate and used for folding the first side plate and the second side plate. According to the electric folding tricycle carriage, folding and unfolding of the carriage side plates can be automatically controlled, operation steps are simplified, operation efficiency is improved, and physical output of a user in the operation process is reduced.

The utility model belongs to the technical field of electronic engineering, in particular to a heat dissipation base of a power amplifier, which comprises the power amplifier and a support base, the top end of the support base is provided with a circular groove, two communicating grooves and two clamping grooves, the two clamping grooves are communicated with the internal space of the circular groove through the corresponding communicating grooves, and the two clamping grooves are communicated with the internal space of the circular groove through the corresponding communicating grooves. A motor is mounted in the circular groove, a driving rod is fixedly connected to the output end of the motor, and a plurality of fan blades are fixedly connected to the side wall of the driving rod; external dust and garbage are intercepted and filtered through the dustproof cover, the situation that impurities and dust in external air are driven by airflow to enter the power amplifier is reduced, and therefore the influence on normal operation of a circuit due to the fact that the dust and the impurities are accumulated in the power amplifier is reduced; the dust cover is intermittently pushed by the six-edge rod to protrude towards the outer portion of the supporting base, so that remaining dust and impurities can be discharged to the outside, cleaning work of the dust cover is achieved, and the situation that the dust cover is blocked is reduced.