30results about How to "Controllable descent speed" patented technology

The invention discloses a machine tool descending stability control method and system and a tractor, and belongs to the technical field of tractors. An outlet of a main pump is respectively connected with inlets of a main overflow valve, a fixed-difference overflow valve and a machine tool control valve; an oil outlet of the machine tool control valve is connected with a spring cavity of the fixed-difference overflow valve through a steady-state throttle valve, and meanwhile, the oil outlet of the machine tool control valve is connected with an inlet of a switch valve; an oil outlet of the switch valve is connected with a rodless cavity of a suspension oil cylinder in a suspension mechanism; the rodless cavity of the suspension oil cylinder is simultaneously connected with an inlet of a lowering valve; a rod cavity of the suspension oil cylinder is connected with an inlet of a secondary overflow valve; a position sensor, a force sensor, a descending knob, a target position setting knob and a descending speed setting knob are electrically connected with the input end of a controller; and the output end of the controller is electrically connected with an electromagnetic valve of the machine tool control valve, an electromagnetic valve of the lowering valve and an electromagnetic valve of the switching valve. The machine tool descending stability control method and system and the tractor have the characteristics of being good in micro-motion performance, stable in starting, controllable in descending speed, stable in descending process and the like.

The invention discloses a non-settlement sand box for civil engineering. The non-settlement sand box for civil engineering comprises a guide mechanism, an outer sleeve, a discharging mechanism and a strengthening mechanism; a pedestal is welded at the bottom end of the outer sleeve; the strengthening mechanism is arranged at the inner top end of the pedestal; an inner sleeve is fixed in the outersleeve; a reserved cavity is formed between the inner sleeve and the outer sleeve; spiral strengthening columns are fixed in the reserved cavity uniformly; and an inner chamber is arranged in the inner sleeve. The inner sleeve is arranged in the outer sleeve, the reserved cavity is formed between the inner sleeve and the outer sleeve, the spiral strengthening columns are fixed in the reserved cavity uniformly, the inner sleeve and the outer sleeve are fixedly connected through the spiral strengthening columns, and the spiral strengthening columns are arranged in the reserved cavity in a concentric circle way, so that the strength of the internal structure of the device is enhanced.

The invention relates to a rope descending machine, in particular to a rock climbing and high-rise escape descending device. The rope descending machine comprises a main body, a U-shaped lever adjusting mechanism, a speed adjusting button, a rope brake block and a rope stop shaft. The rope descending machine is mainly realized by a lever principle on the physics, and supplies dual stop force to a rope through the speed adjusting button, so that users effectively control the body gliding speed with the least force in the descending process. The rope descending machine is simple in structural design and operation, can control the descending speed, is safe and reliable, and is a necessary tool for rock climbing and high-rise escape.

The invention discloses a hydraulic distributor of a hydraulic suspension device. The hydraulic distributor is characterized in that two adjacent valve rod sections of a valve rod are correspondinglyprovided with an ascending speed control conical surface and a descending speed control conical surface, and when the hydraulic distributor is in an ascending working position, a pressure oil cavity and an oil return cavity of the hydraulic distributor are disconnected; and the valve rod and a valve body form an ascending speed throttling gap at the ascending speed control conical surface, a firstworking oil cavity is in communication with the pressure oil cavity through the ascending speed throttling gap, the second working oil cavity is in communication with the oil return cavity, and the axial displacement of the valve rod is controlled through an electric control unit, so that the throttling area of the ascending speed throttling gap can be changed, the ascending speed of a farm implement can be controlled, and similarly, the descending speed of the farm implement can also be controlled.

A magnetic-buffering speed bump comprises a bump panel. A first metal box is arranged on the lower surface of the bump panel. One end of the bump panel is connected with a rotating shaft and can rotate around the rotating shaft; the other end of the bump panel is connected with a hook fixed on the ground; a second metal box underground is arranged at the position relative to the first metal box; a magnet is arranged inside each of the first metal box and the second metal box; like poles of the magnets in the metal boxes face each other. The magnetic-buffering speed bump employs magnetic force as decelerating power; compression delay time of the magnets allow the bump to enable the vehicles, different in duty and running at low speed, to smoothly run; the bump, the same as common bumps, provides punitive vibration for high-speed passing vehicles; comfort level is increased for low-speed vehicles to pass the bump; corresponding safety is guaranteed.

The invention discloses a quick rescuing and fire fighting truck which comprises a truck body, a rotation table, a first hydraulic cylinder, a second hydraulic cylinder, a stretchable arm, a supporting arm, a speed regulating motor, a driving wheel, a driven wheel, a tensioning wheel, a chain, a conveying plate and a high-altitude rescuing platform. The rotation table and the supporting arm are arranged above the truck body, the rotation table is provided with the stretchable arm connected with the first hydraulic cylinder, the stretchable arm is connected with one end of the supporting arm, the other end of the supporting arm is connected with the second hydraulic cylinder, a driving wheel electrically connected with the speed regulating motor is arranged at the bottom end of the stretchable arm, and a driven wheel is arranged at the top end of the stretchable arm; and the driving wheel, the driven wheel and the tensioning wheel are provided with the matched chain, the chain is provided with a movably-connected conveying plate, and the high-altitude rescuing platform is arranged at the topmost end of the stretchable arm. The quick rescuing and fire fighting truck is reasonable in design, not prone to fall, simple in operation, controllable in descending speed and free of secondary injuries, trapped persons can be conveyed in a circulated manner, the rescuing rate is greatly increased, the conveying direction is far away from a fire catching point, and the safety performance is high.

The invention provides a movable arm deceleration control device and method of an excavator and the excavator, and relates to the technical field of engineering machinery. The movable arm decelerationcontrol device comprises a controller, a movable arm driving module, and an angle displacement acquirer arranged on a working device of the excavator; the angle displacement acquirer is connected with the controller; the controller is connected with the movable arm driving module; the angle displacement acquirer is used for acquiring angle displacement information of the working device in the descending process and sending the angle displacement information to the controller; the controller is used for obtaining working state information of the working device according to the angle displacement information and sending control signals to the movable arm driving module when the working state information reaches a preset state; and the movable arm driving module is used for adjusting the movable arm descending speed of the working device according to the control signals. The movable arm deceleration control device can control the movable arm descending speed of the working device in thedescending process to prevent potential safety hazards caused by overspeed.

The invention discloses a hydraulic system and an adjusting method for floating of an agricultural implement. According to the hydraulic system and the adjusting method, the problem that in the priorart, the floating operation of the agricultural implement is labor-consuming is solved, and the beneficial effects of being convenient to control, reliable in locking and wide in application range areachieved. According to the scheme, the hydraulic system for floating of the agricultural implement comprises an oil cylinder for the agricultural implement, a lifting loop, a free floating loop and aload floating loop are arranged between the oil cylinder and an oil tank, wherein the free floating loop and the load floating loop are connected with the lifting loop in parallel, the free floatingloop comprises at least one-way valve, one ends of the one-way valves are connected with the oil cylinder, the other ends of the one-way valves are connected with the oil tank through electromagneticreversing valves, the load floating loop comprises the first electromagnetic reversing valve, the oil outlet of the first electromagnetic reversing valve is connected with the oil cylinder, and the oil inlet of the first electromagnetic reversing valve is connected with the oil tank.

A nut cracker comprises a rocker handle, wherein a power connecting shaft is arranged on the lower part of the rocker handle; the power connecting shaft and a lower power gear are integrated; nut-shaped inner threads are arranged in the middle of the power connecting shaft and are connected with a lower fixing stud in a twisting manner; the power connecting shaft can move vertically; the lower part of the fixing stud and a fixing shaft A are fixed integrally; the fixing shaft A and a base are connected integrally; the base and the cover are combined or separated through a buckle; the upper part of the base is connected with a storage bin; the outer side of the power gear is connected with a driven gear; the lower part of the driven gear and a pressure stud are fixedly integrally; the upper part of the driven gear is connected with a horizontal fixing structure through an integrated fixing shaft B; the driven gear and the horizontal fixing structure move relatively in use; and by the horizontal fixing structure, the power gear and the driven gear can be located at the same horizontal position. The rocker handle sways to rotate the power gear on the left side, a gear on the right side is driven to move downwards, and therefore, a nut shell in the storage bin is extruded. The nut cracker has the characteristics of low cost, simple structure and easiness in operation.

The invention provides a descent control device with controllable speed, and belongs to the technical field of fire-fighting and life-saving tools. The descent control device with controllable speed comprises a mounting plate, a winding drum, a mounting shaft and a descent control rope, wherein the mounting shaft is fixedly arranged on the mounting plate; the winding drum is rotatably connected tothe mounting shaft; one end of the descent control rope is fixed to the winding drum; a magnetic force damping mechanism is arranged between each end of the mounting shaft and the winding drum, and comprises an electromagnetic component on which a coil wire is wound; an electric current control switch is arranged at one end, provided with a lock hook, of the descend control rope; the two coil wires are in parallel connection, and then are connected to the electric current control switch; and an electrified wire between the electric current control switch and each coil wire loosely penetratesinto a perforating hole. The descent control device with controllable speed has the advantages of high reliability and the like.

A magnetic-buffering speed bump comprises a bump panel. A first metal box is arranged on the lower surface of the bump panel. One end of the bump panel is connected with a rotating shaft and can rotate around the rotating shaft; the other end of the bump panel is connected with a hook fixed on the ground; a second metal box underground is arranged at the position relative to the first metal box; a magnet is arranged inside each of the first metal box and the second metal box; like poles of the magnets in the metal boxes face each other. The magnetic-buffering speed bump employs magnetic force as decelerating power; compression delay time of the magnets allow the bump to enable the vehicles, different in duty and running at low speed, to smoothly run; the bump, the same as common bumps, provides punitive vibration for high-speed passing vehicles; comfort level is increased for low-speed vehicles to pass the bump; corresponding safety is guaranteed.

A variable cross-section rope winding wheel comprises a wheel body (6.1) and an installation hole (6.2). The rope winding wheel is provided with a variable cross-section rope groove. When a rope is wound on different positions of the rope winding wheel groove, the friction force between the rope and the rope winding wheel groove is also different. A suspension device with the variable cross-section rope winding wheel is provided. A U-shaped rope penetrating part (2) is arranged on a suspension body (1) of the suspension device. A rope penetrating hole (1.1) is formed by a U-shaped opening of the U-shaped rope penetrating part (2) and the suspension body. The variable cross-section rope winding wheel is arranged on the suspension body. A suspension hole (1.2) bearing human body weight is arranged at a position deviating towards one side. A suspension body control handle (1.4) for controlling the deflection of the suspension device is arranged on the other side of the suspension hole. When the variable cross-section rope winding wheel is used, an operation rope passes through the rope penetrating hole and then is wound on the variable cross-section rope winding wheel. One end of the operation rope is fixed, and the other end of the operation rope hangs down to a lower position. A human body is fixedly connected with the suspension hole. When a human body is born and hung by the suspension hole alone, due to the fact that the fixed end of the operation rope and a free end thereof are mutually tightly compressed, the suspension device is in a self-locking state. When the human body applies pull to the suspension device through the control handle, the deflection of the suspension device happens, the rope begins to slide, the variable cross-section rope winding wheel is controlled to rotate by hand, and the friction between the rope winding wheel and the rope can be adjusted to control the descending speed. The devise solves the problem that an 8-shaped ring type suspension device in the prior art is difficult in self-locking.

The invention discloses a sinking construction device for a cast-in-place underground building, and relates to the technical field of underground building construction. The construction device for the underground building comprises a chain cutter excavating device, a hanging device and a pouring device, the chain cutter excavating device comprises a chain cutter and a chain cutter driving device, and the chain cutter comprises a chain and a cutter installed on the chain; a building is poured on the ground in a segmented mode through the pouring device in the length direction, the chain cutter transversely envelops the outer side of the section of the building. According to the sinking construction device for the cast-in-place underground building, the building is in a suspended state through the hanging device, the chain cutter driving device is started, the chain cutter at the bottom of the building excavates rock soil, and the chain cutter moving from bottom to top brings the excavated rock soil to the upper portion. Sinking construction of the building is achieved.

The invention relates to a hanging frame type self-lifting playing device. A stool is arranged in a hanging frame, ball bearings fixedly penetrating through a round wheel shaft are fixed to the left side face and the right side face of the hanging frame, round wheels are fixed to the two ends of the round wheel shaft respectively, and circular rings are fixed to the front side face and the rear side face of the hanging frame respectively. An inverted-U-shaped stainless steel vertical rod having the lower portion fixed to the cement ground and the upper edge welded and fixed to the upper edge of an inverted-U-shaped stainless steel pipe support perpendicularly is inserted into the circular rings, the lower portion of the support is fixed to the cement ground in a penetrating mode, the upperends of two parallel steel wire ropes are fixed to the support, and the lower ends of the steel wire ropes are fixed to round wheel shafts between the round wheels and the hanging frame. The peripheries of the front portion and the lower portion of the round wheel are provided with brake bands in a surrounding mode, the upper ends of the brake bands are fixed to the two ends of a round stainlesssteel pipe pull rod in a rolled mode, the pull rod is arranged on the upper front portion of the hanging frame, and clamping rods are fixed in the two ends of the pull rod respectively and clamped outside the two sides of the hanging frame. A player sits in the hanging frame, pulls the round wheels on the left side and the right side of the hanging frame with two hands, the hanging frame is liftedto a high position through the steel wire ropes, the hanging frame descends after releasing of the hands, and the hanging frame can climb upwards after the hanging frame descends.

The invention discloses a non-sedimentation sand box for civil engineering, which comprises a guide mechanism, an outer sleeve, a discharge mechanism and a reinforcement mechanism, the bottom of the outer sleeve is welded with a base, and the top inside the base is equipped with a reinforcement mechanism , the inside of the outer sleeve is fixed with an inner sleeve, and a reserved cavity is formed between the inner sleeve and the outer sleeve, and the inside of the reserved cavity is uniformly fixed with a spiral reinforcement column, and the inside of the inner sleeve An inner chamber is provided. In the present invention, an inner sleeve is provided inside the outer sleeve, a reserved cavity is formed between the inner sleeve and the outer sleeve, and at the same time, a spiral reinforcement column is uniformly fixed inside the reserved cavity, and the gap between the inner sleeve and the outer sleeve The spiral reinforcement columns are fixedly connected, and the spiral reinforcement columns are arranged in concentric circles inside the reserved cavity to strengthen the strength of the internal structure of the device.

The invention discloses a dynamic descending speed limiting device for a high-altitude cable climbing robot, which comprises a stator, a rotor and a mandrel. The inertia block matched with the chute slope; each inertia block fits the sliding plate under the action of the compression spring; the sliding plate is provided with a conical spool; the stator is provided with a hydraulic chamber, an inner blind hole and The outer blind hole; the hydraulic cavity is equipped with an impeller; the inner blind hole includes a tapered hole, and a steel ball connected with the spring is arranged in the inner blind hole; the outer blind hole is provided with a tapered valve hole matching the tapered valve core . After adopting the above-mentioned structure, the structure is simple and compact, the braking force can change dynamically and adaptively with the change of the descending speed, the lower limit speed is controllable, the braking resistance comes from the damping force generated when the fluid passes through the damping hole, and there is no pure mechanical friction The problem of heat attenuation is solved, and it can perform long-term and long-distance braking, and has high promotion value.

The invention discloses a dynamic descending speed limiting device for a high altitude cable climbing robot. The dynamic descending speed limiting device for the high altitude cable climbing robot comprises a stator, a rotor and a mandrel, wherein a plurality of inclined sliding grooves are uniformly formed in a circumferential direction of the rotor; an inertial block matched with the inclined surface of the inclined sliding groove is placed in each inclined sliding groove; each inertial block is laminated with a sliding disk under an effect of a pressure spring; conical valve cores are arranged on the sliding disks; hydraulic chambers, internal side blind holes and external side blind holes, which are communicated with each other, are formed in the stator; impellers are arranged in the hydraulic chambers; the internal side blind holes comprise conical holes in which steel balls connected with the springs are arranged; and conical valve holes matched with the conical valve cores are arranged in the external side blind holes. After the structure is adopted, the dynamic descending speed limiting device for the high altitude cable climbing robot, disclosed by the invention, is advantaged in that the structure of the dynamic descending speed limiting device is simple and compact, the braking force of the dynamic descending speed limiting device can dynamically self-adaptively change with the change of descending speed; the lower limit speed of the robot is controllable, the braking resistance comes from damping force generated when a fluid flows through a damping hole, pure mechanical friction type thermal decay problem does not exist, the dynamic descending speed limiting device can perform long-time and long-distance braking, and the promotion value of the dynamic descending speed limiting device is high.

The invention discloses a sinking construction device for a cast-in-place underground building, and relates to the technical field of underground building construction. The underground building comprises an outer wall, a top plate, a bottom plate and a construction device, and is composed of end sections located at the two ends and a middle section located in the middle, and each end section comprises a transverse wall located at the end and two longitudinal walls located on the two sides; the construction device comprises an excavating device, a hanging device located at the top of the building and a pouring device, and the excavating device excavates rock soil at the bottom of the bottom plate and comprises a chain cutter and a driving device; the driving device is mounted above the bottom plate; and each longitudinal wall comprises vertically staggered holes located above the bottom plate, and the chain cutter envelops the bottom plate through the holes. The building is poured on the ground in a segmented mode through the pouring device in the length direction, the building is in a suspended state through the hanging device, the driving device is started, the chain cutter at the bottom of the bottom plate excavates rock soil, and the excavated rock soil is brought to the upper part by the chain cutter running from bottom to top, so that the sinking operation of the building is realized.

The invention discloses a quick rescuing and fire fighting truck which comprises a truck body, a rotation table, a first hydraulic cylinder, a second hydraulic cylinder, a stretchable arm, a supporting arm, a speed regulating motor, a driving wheel, a driven wheel, a tensioning wheel, a chain, a conveying plate and a high-altitude rescuing platform. The rotation table and the supporting arm are arranged above the truck body, the rotation table is provided with the stretchable arm connected with the first hydraulic cylinder, the stretchable arm is connected with one end of the supporting arm, the other end of the supporting arm is connected with the second hydraulic cylinder, a driving wheel electrically connected with the speed regulating motor is arranged at the bottom end of the stretchable arm, and a driven wheel is arranged at the top end of the stretchable arm; and the driving wheel, the driven wheel and the tensioning wheel are provided with the matched chain, the chain is provided with a movably-connected conveying plate, and the high-altitude rescuing platform is arranged at the topmost end of the stretchable arm. The quick rescuing and fire fighting truck is reasonable in design, not prone to fall, simple in operation, controllable in descending speed and free of secondary injuries, trapped persons can be conveyed in a circulated manner, the rescuing rate is greatly increased, the conveying direction is far away from a fire catching point, and the safety performance is high.

The invention discloses a sinking construction device for a bottom on-site construction upper assembly type underground building and relates to the technical field of underground building construction. The construction device of the building comprises a chain cutter excavating device, a hanging device, a pouring device and an assembly device, wherein the building comprises a bottom for on-site construction and an assembly type upper portion; the bottom is poured on the ground in a full-length mode through the pouring device, the upper portion is assembled above the bottom through the assembling device, the chain cutter excavating device comprises a chain cutter and a chain cutter driving device, the chain cutter comprises a chain and a cutter installed on the chain, and the chain cutter transversely or longitudinally wraps the outer side of the section of a building; when the building is in a suspended state through the hanging device, the chain cutter driving device is started, the chain cutter at the bottom of the building excavates rock soil, the chain cutter running from bottom to top brings the excavated rock soil to the upper portion, and sinking construction of the building is achieved.

The invention relates to the field of escape devices, in particular to a domestic escape device. The domestic escape device comprises an escape compartment; a rotating device is arranged at the bottom of the escape compartment; plug-in mounting holes are symmetrically formed in the top on the left side of a lower housing; a lower housing through groove for communicating the inside of the lower housing with the outside of the lower housing is formed in the left side of the lower housing; a front brake device is movably connected to the lower housing through groove through a rotating shaft; the lower end of the front brake device is fixedly connected with a buffer device; a rear brake device is arranged on the rear side of the escape compartment; a support positioning device is arranged under the escape compartment; and both sides of the escape compartment are respectively and fixedly connected with a slow descending device. The domestic escape device disclosed by the invention is simple in structure, reasonable in design and easy to operate; people can escape from a stair or from a window, so that the generality is high; and the controllability of the escape tool in an escape process is high, errors in the operation process can be reduced effectively, the use security is high, the needs of people can be met effectively, and problems existing in the prior art are solved.

The invention discloses a control method, system and tractor in the technical field of tractors for controlling the descent and stability of implements. The outlet of the main pump is respectively connected with the inlet of the main relief valve, differential relief valve and implement control valve; the oil outlet of the implement control valve is connected with the spring chamber of the differential relief valve through the steady-state throttle The oil outlet of the control valve is connected with the inlet of the switch valve; the oil outlet of the switch valve is connected with the rodless chamber of the suspension cylinder in the suspension mechanism; the rodless chamber of the suspension cylinder is connected with the inlet of the down valve at the same time; The rod cavity is connected to the inlet of the secondary overflow valve; the position sensor, force sensor, lowering knob, target position setting knob and lowering speed setting knob are respectively electrically connected to the input end of the controller; the output end of the controller is respectively connected to the implement control valve The electromagnetic valve of the solenoid valve, the solenoid valve of the descending valve and the solenoid valve of the switching valve are electrically connected; it has the characteristics of good micro-movement, stable start, controllable descending speed, and stable descending process.

The invention discloses a sinking construction device for a bottom on-site construction upper assembly type underground building and relates to the technical field of underground building construction. The underground building comprises an outer wall, a top plate, a bottom plate and a construction device and is composed of end sections located at two ends and a middle section located in the middle, and the outer wall comprises a longitudinal wall and a transverse wall; the end section comprises a transverse wall located at an end and two longitudinal walls located on the two sides, and the middle section comprises longitudinal walls located on the two sides; the construction device comprises an excavating device, a hanging device and an assembling device, the hanging device and the assembling device are located at the top of a building, the excavating device excavates rock soil at the bottom of a bottom plate, a longitudinal wall comprises holes which are located above the bottom plate and staggered up and down, a chain cutter wraps the bottom plate through the holes, the longitudinal wall comprises a lower longitudinal wall located below the holes and an upper longitudinal wall located above the holes, and a driving device starts; the chain cutter at the bottom of the bottom plate excavates rock soil, the chain cutter running from bottom to top brings the excavated rock soil to the upper portion, sinking operation of the building is achieved, and the building sinks to the set depth.

The invention discloses a promotion hydraulic system, and belongs to the field of hydraulic systems. The promotion hydraulic system comprises a balance valve, a first shuttle valve, a first electromagnetic reverse valve, a second electromagnetic reverse valve and a first throttle valve; an oil inlet of the balance valve is communicated with a first oil inlet of the first shuttle valve; an oil outlet of the balance valve is communicated with a port A of a motor; a port B of the motor is respectively communicated with a control oil port of the balance valve and a port A of the first electromagnetic reverse valve; the control oil port of the balance valve is also communicated with a port B of the first electromagnetic reverse valve; an oil inlet of the first throttle valve is communicated with the control oil port of the balance valve; an oil outlet of the first throttle valve is communicated with a port B of the first electromagnetic reverse valve; and a port C of the first electromagnetic reverse valve is communicated with a second oil inlet of the first shuttle valve. The balance valve in the promotion hydraulic system is a one-way balance valve; and the cost of the one-way balance valve is lower than the cost of a two-way balance valve, so that the cost of the promotion hydraulic system is reduced.

The invention discloses a sinking construction device for a cast-in-place underground building, and relates to the technical field of underground building construction. The underground building comprises an outer wall, a top plate, a bottom plate and a construction device, and is composed of end sections located at the two ends and a middle section located in the middle, and the outer wall comprises a longitudinal wall and a transverse wall; the construction device comprises an excavating device, a hanging device located at the top of the building and a pouring device, the excavating device comprises an outer wall excavating device and a bottom plate excavating device, the outer wall excavating device excavates rock soil at the bottom of the outer wall, the bottom plate excavating device excavates rock soil at the bottom of the bottom plate, the outer wall excavating device and the bottom plate excavating device comprise chain cutter excavating devices, and each chain cutter excavating device comprises a chain cutter and a driving device; and a longitudinal wall comprises upper holes and lower holes, the upper holes are vertically staggered, the lower holes are vertically staggered, the upper holes are located above the bottom plate, the lower holes are next to the lower portion of the bottom plate, the bottom plate chain cutter envelops the bottom plate through the upper holes and the lower holes, and the longitudinal wall comprises a lower longitudinal wall located below the bottom plate, a middle longitudinal wall located between the upper holes and the lower holes and an upper longitudinal wall located above the upper holes.

The invention discloses a sinking construction device for an underground building with an on-site construction bottom and a fabricated top, and relates to the technical field of underground building construction. The construction device of the building comprises a chain cutter excavating device, a hanging device, a pouring device and a fabricating device, and the building comprises an on-site construction bottom and a fabricated top, the bottom is poured on the ground in a segmented mode through the pouring device, the top is fabricated above the bottom through the fabricating device, the chain cutter excavating device comprises a chain cutter and a chain cutter driving device, the chain cutter comprises a chain and a cutter installed on the chain, and the chain cutter transversely or longitudinally wraps the outer side of the section of the building. When the building is in a suspended state through the hanging device, the chain cutter driving device is started, the chain cutter at the bottom of the building excavates rock soil, the chain cutter running from bottom to top brings the excavated rock soil to the top, and sinking construction of the building is achieved.

The invention discloses a multi-person electric pole mounter, which relates to the field of electric construction equipment. It includes a row of crawler shells; the crawler shells are connected by rotating shafts, and bolts are fastened between the crawler shells at the beginning and the end; each crawler shell is installed with a roller-driven rubber crawler; the lower end of each crawler shell is provided with pedals; reinforcing ribs and safety shoelaces are arranged on each pedal; a motor is installed on the lower end face of one of the pedals; the output end of the motor is connected with the input end of each rubber track through a flexible shaft; the output end of the motor is provided with a brake A ratchet wheel fixed by a splint is arranged on the track shell; a sleeve is rotatably sleeved with the shaft of the ratchet wheel; a telescopic control rod is slidably connected in the casing; an active pawl is arranged on the telescopic control rod; the brake and the telescopic control rod are braked line connection. The beneficial effects of the present invention are: relying on electric power to provide power to climb and rise, fix and stabilize, save time and effort, and can be used by multiple people to work synchronously.