42 results about "Dwang" patented technology

A modularization teaching robot with reconfigurable functions, belongs to the field of electromechanical control and automatization teaching, which comprises a core servo module and an accessory, wherein the core servo module includes a main body host, a main body deputy, a dwang of a joint plane, a dwang of rotation plane, a DC machine and a reinforcement plate. The main body host is symmetrical along a center line and of phi-shape; the reinforcement plate is reinforced on two side walls; the main body deputy is of U-shape, the main body host and the main body deputy are connected through the dwang of a joint plane and the dwang of rotation plane; the DC machine is mounted on the main body host; a connecting module is mounted on four joint planes of the core servo module, the core servo module are combined into a reconfigurable robot through the connecting module, or the core servo module and the accessory are combined into the robot. The invention provides a high level teaching experiment platform which integrates machinery, electron, control theory and software engineering, with strong practice teaching functions.

The invention discloses a tool changing device for a vertical broaching machine. The tool changing device comprises a dwang (19), a swing block (12), a guide rod (10) and a sliding block (4), wherein the dwang (19) is rotatably arranged on the vertical broaching machine; one end of the swing block (12) is fixed on the dwang (19); the guide rod (10) can be rotatably arranged on the vertical broaching machine, one end of the guide rod (10) is rotatably connected with the other end of the swing block (12); and the sliding block (4) is arranged on the other end of the guide rod (10) and provided with a sliding chute which can be matched with the end part of a bolt (3) used for installing a broach (20). In the tool changing device for the vertical broaching machine provided by the invention, the tool changing of the vertical broaching machine is performed at the exterior of a machine tool instead of the interior of the machine tool, thereby reducing the labor intensity and operation dangerof an operator, saving time and improving the production efficiency; and the tool changing device is simple in structure, is convenient for regulation, insulation and exchange, is easy to maintain and has extremely low manufacturing cost.

The invention discloses a blasting dust decreasing device for building construction. The blasting dust decreasing device comprises two fixing seats. Fixing frames are fixed to the outer walls of the tops of the two fixing seats, and a steel wire net is connected to the inner walls of the fixing frames in a hinged manner. Fixing plates are fixed to the outer walls of the two sides of the fixing frames, and damping bearings are fixed to the outer walls of one sides of the two fixing plates. Rotating shafts are rotationally connected to the inner walls of the two damping bearings, and rotating rods are fixed to the outer walls of one sides of the two rotating shafts. A protection net is fixed between the outer walls of the opposite sides of the two rotating rods, and a supporting seat is fixed to the inner walls of the tops of the fixing frames. By means of the blasting dust decreasing device for building construction, the phenomenon that the ascending speed of dust is high due to the acting force generated during blasting, and dust decreasing is affected can be avoided; the phenomenon that the device falls due to the impact force generated during blasting, and dust decreasing is affected can be prevented; and the phenomenon that the device falls, and dust decreasing is affected can be prevented.

The invention discloses a water source filter device for artificial aquaculture, which comprises a second filter box, a support frame, a first filter box, a blanking box, a water injection pipe, a delivery wheel, a collection box, a support sleeve, a rotating rod, a secondary The filter net and the primary filter net, the two conveying wheels are wound with a filter net belt, and the inside of the second filter box is also rotated with a rotating rod, and the outer ring of the rotating rod located in the right inner cavity of the second filter box is fixedly installed There are No. 2 cleaning rod and No. 1 cleaning rod. The second filter box is equipped with a secondary filter screen and a primary filter screen respectively in the right inner cavity. The rotating rod slides through the No. 1 guide sleeve and the No. 2 guide slide. Set inside. The invention can effectively solve the problem that the water outlet is easily blocked by sundries during the water source filtering process, and the water cannot be pumped, and the sundries attached to the surface of the filter screen are easy to clean, saving time and effort, and having high efficiency, and are suitable for popularization and use.

The invention discloses a trigonometric function image demonstration device. The trigonometric function image demonstration device comprises a drawing board assembly (1), reference cylinder assemblies (2), locking sheets (3), a reference cylinder dwang (4), a connection rod (5), tangent T-shaped guide rails (6), cotangent T-shaped guide rails (7), a vertical sliding rod assembly (8), a tooth form belt (9) and slide block cylinders (10). The two reference cylinder assemblies (2) are respectively inserted into the two holes of the drawing board assembly (1) and the locking sheets (3) are inserted into the reference cylinder assemblies (2) for axial fixation. The two tangent T-shaped guide rails (6) and the two cotangent T-shaped guide rails (7) are respectively tangent with the right sides and the left sides of the outer circles of the two reference cylinder assemblies (2), are parallel to the Y axis (1-4) of the drawing board assembly (1) and are in adhesive connection with the drawing board (1-1) of the drawing board assembly (1). The two guide rails are internally provided with the slide block cylinders (10). The advantages are as follows: trigonometric function images can be drafted in a quantification mode within positive and negative 360-degree scopes.

The invention provides a fabricated building construction positioning and mounting structure, and relates to the technical field of building construction. The fabricated building construction positioning and mounting structure comprises a wallboard body, four circular rods are arranged at the top of the wallboard body, first belt wheels are fixedly connected to the outer sides of the four circular rods, first belts are arranged on the outer sides of the first belt wheels, and a second belt wheel is fixedly connected to the outer side of one circular rod. According to the fabricated building construction positioning and mounting structure, two steel plate bodies are loosened, at the moment, rotating rods move relatively, the rotating rods move relatively to drive clamping connecting plates to move relatively, reinforcing steel bar bodies can be clamped, and if the positions of the reinforcing steel bar bodies are accurate enough, the clamping connecting plates can just clamp all the reinforcing steel bar bodies; and the structure is beneficial for quickly judging whether the positions of the reinforcing steel bar bodies are accurate positions or not, so that the wallboard reserved steel bar can be conveniently and accurately mounted into a steel sleeve, and reworking and influence on construction efficiency are avoided.

The driver includes motor, dwang of stator, and link rod, and straight vibrator, interface board of computer, frequency converter and revolution speed sensor. Measuring apparatus for torsional vibration and revolution speed sensor are installed on working-spindle series. Output signals of measuring apparatus for torsional vibration and revolution speed sensor are connected to interface board of computer. Output end of D / A converter of vibration signal in interface board of computer is connected to the input end of power amplifier. D / A converter for speed regulation of motor controls frequency converter to output frequency of power source. Through dwang of stator and link rod, the motor is connected to straight vibrator to make stator of motor generate superimposed components of rotating magnetic field and torsional vibration.

The invention belongs to the technical field of building construction, and particularly relates to an accurate alignment and subsection lowering device for a large-diameter super-long reinforcement cage and a using method. The following scheme is provided that the device comprises a bottom supporting mechanism arranged in a square shape; a moving mechanism of a square structure is slidably connected with the top of the bottom supporting mechanism; the four sides of the moving mechanism are sleeved with aligning mechanisms in a sliding mode; each aligning mechanism comprises a rectangular frameslidably connected with the moving mechanism in a sleeving mode; the frames are movably connected with rotating rods arranged in the length direction of the frames in a sleeving mode; and the tops, stretching into the inner rings of the frames, of the rotating rods are provided with a long-strip-shaped clamping plate arranged in the length direction of the frames. By means of the combined designof the accurate alignment and subsection lowering device for the large-diameter super-long reinforcement cage, installation is convenient and fast, transportation and carrying are convenient, meanwhile, and the device can be suitable for alignment and butt joint operation of the lower portions of the reinforcement cages in hole pile holes with different diameters; and the reinforcement cages and the hole pile holes are coaxial, so that the situation that the reinforcement cages are kept in a vertical state when located below is guaranteed, the operation is convenient, and the labor intensity of operators is reduced.

The invention discloses a protractor which comprises a protractor body (1), wherein the middle of the protractor body (1) is hollowed out. The protractor further comprises a dwang (2), a sliding rail (4), a sliding block (5), a connecting sheet (6) and a fixed platform (7), wherein the circle center of the protractor body (1) enables one end of the dwang (2) to be fixed through a fixing part (3); scales are marked on the two sides of the dwang (2), a hollowed-out portion is arranged in the middle of the dwang (2), and the sliding rail (4) is fixed to the inner side of the hollowed-out portion; the sliding block (5) is located in the middle of the sliding rail (4), a through hole is formed in the center of the sliding block (5), and one side of the sliding block (5) is connected with one end of the connecting sheet (6) through a hinge; the other end of the connecting sheet (6) is connected with the fixed platform (7) through a hinge, and a through hole is formed in the center of the fixed platform. The protractor integrates the functions of a compass, a dividing ruler and the protractor, enhances flexibility, saves drawing time, improves use efficiency and is convenient to operate.

The invention relates to an indoor suspended ceiling structure. The indoor suspended ceiling structure comprises at least three groups of mounting fasteners, a keel main body and a plurality of gypsumboards. Each mounting fastener comprises a mounting section and a connecting section which are integrally arranged, wherein a first cavity is arranged in the mounting section, a rotating rod penetrates through the connecting section and is rotatably connected with the connecting section, a turntable is concentrically arranged at one end of the rotating rod, two groups of sliding grooves are formed in the mounting section, sliding blocks are arranged in the sliding grooves, a driving assembly is arranged between each sliding block and the turntable, the connecting section comprises a supporting plate and a pressing plate, a guide sliding block is arranged on one side of the pressing plate, a guide sliding groove is formed in the mounting section, and a threaded rod penetrates through the supporting plate and is rotatably connected with the supporting plate. A construction method of the indoor suspended ceiling structure comprises the steps of measurement positioning, wall drilling, installation of the mounting fasteners, installation of the keel main body and installation of the gypsum boards. According to the indoor suspended ceiling structure and the construction method thereof,the keel main body is fixed on the wall through the mounting fasteners, the installation process is simple, the practicability is high, and the efficiency of the indoor suspended ceiling is improved.

The invention discloses a stirring device used for chemical industrial equipment. The stirring device comprises a master motor, a speed reducer, a stirring housing, a corrosion-resistant anchor-shaped stirrer, a container, a discharging ball valve, bracing frames, air filters, fixed concaved valve blocks and an exhaust outlet. The speed reducer is connected to the master motor through a dwang, the bracing frames are welded to the stirring housing, the air filters and the stirring housing form an integrated structure, the fixed concaved valve blocks and the stirring housing form an integrated structure, the exhaust outlet is welded to the stirring housing, and a connection head of the stirrer is embedded in the speed reducer. According to the stirring device, the corrosion-resistant anchor-shaped stirrer is connected to the speed reducer. During operation of the stirring device, the stirrer can resist to a high-corrosion chemical material in the stirrer, thereby greatly prolonging the service life of the stirring device and greatly reducing application cost of the device.

The invention relates to the technical field of circular motion, in particular to a circular rod gear, comprising a dwang, a fixing base, a first connecting mechanism and a second connecting mechanism, wherein the dwang is connected with the fixing base in a rotating manner; one end of the dwang is connected with the first connecting mechanism; the first connecting mechanism is used for connecting with an external power source, so that the external power source can drive both ends of the dwang to do the circular motion; the other end of the dwang is connected with the second connecting mechanism; the second connecting mechanism is used for connecting with an external rotating mechanism, so that the circular motion of the dwang can be converted to a movement form of the external rotating mechanism; a distance from one end, connected with the first connecting mechanism, of the dwang to the fixing base is greater than a distance from the other end, connected with the second connecting mechanism, of the dwang to the fixing base. The circular rod gear provided the invention utilizes a lever principle, so that the power consuming by the external power source due to the fact that the circular rod gear drives the external rotating mechanism is smaller than the power consuming by the external power source due to the fact that the external power source is directly connected with the external power mechanism, and the power source can save power.

The present invention relates to a scraper and a non-material detecting device on the scraper. The non-material detecting device comprises the following components: a photoelectric bracket which is fixed on the panel of the frame of the scraper and is installed with a photoelectric detecting element whereon; the photoelectric detecting element comprising a photoemitter and a photoelectric receiver; a rotating axis rotatablely traverses the panel and radially fixed with the panel, the rotating axis which is installed with a photoelectric detecting piece at one end near the photoelectric bracket, and is permanently fixed with a dwang at the other end; the dewang which is permanently connected with a fixed block which is perpendicular to the rotating axis and the dwang at the other end; a fixed block with one end connected with the transmission rod and the other end connected to a rotating head; the rotating head which is laid on the external circumstantial surface of the scraper material-laying coil with the gravity force; the position of the photoelectric detecting piece corresponding with no-material condition of the material-laying coil is between the photoelectric receiver and the photoemitter; and a controller which can control the scraper component to switch off the electric power source when a photoelectric detecting piece is detected by the photoelectric detecting element. The non-material detecting device can timely and accurately detect the material condition of the material-laying coil.

The invention discloses an inclined pile vertical anchor supporting structure adjacent to an existing building foundation pit. The inclined pile vertical anchor supporting structure comprises two inserting rods fixedly arranged on a pit body of the building foundation pit, wherein inclined piles are arranged on the two inserting rods; hinging seats are fixedly arranged on the two inclined piles; the two hinging seats are rotationally connected with connecting rods through rotating rods; sliding sleeves are slidingly connected onto the two inserting rods; in addition, the two sliding sleeves are rotationally connected with the other ends of the two connecting rods through rotating rods; fixing sleeves are fixedly arranged on the two inserting rods; supporting ascending and descending mechanisms are arranged between the two fixing sleeves and the two sliding sleeves; and a plurality of cross beams are slidingly connected between the two inclined piles. The inclined pile vertical anchor supporting structure has the advantages that the angles of the inclined piles relative to the inserting rods can be adjusted according to requirements, so that the inclination angle of the formed retaining wall can be ensured to be a preset value, the occurrence of the deviation is avoided, the angle adjustment operation of the inclined piles is simple and convenient, and the operation difficulty can be reduced.

The invention relates to a jib luffing angle detection device comprising a box body, a dwang, an interlocking bar, an encoder, and a controller; the encoder is arranged in the box body; the dwang is connected with the interlocking bar; the interlocking bar is connected with a rotary shaft of the encoder; the dwang is arranged outside the box body and connected with a movable arm of the jib; the encoder is connected with the controller, converts the angular displacement formed by the rotary shaft into an electric signal, and sends the electric signal to the controller. The jib luffing angle detection device is simple in structure, easy to process, low in cost, and electric purchased parts are reduced in number, thus reducing the whole making cost; the jib luffing angle detection device is simple to install, low in field installation process requirements, has no clear installation size precision requirement, simple and fast in construction, low in labor cost, simple in electric re-wiringprocess, less in electrified debugging works, stable and reliable in operation, and accurate in real time data; the main elements are mounted in the waterproof and dustproof box body, so the jib luffing angle detection device is long in life.

The invention discloses an assembly type building construction platform and a dismounting method thereof. The platform comprises a scaffold, a conveyer, support benches and a material box, the scaffold comprises vertical, horizontal and inclined rods, each inclined rod is installed between the vertical and horizontal rods in the two side surfaces of the scaffold, the support benches are mounted onthe scaffold, the conveyer is mounted on the support bench in the top end of the scaffold, each support bench comprises a daughter-mother board, the two ends of each daughter-mother board are mountedin the horizontal rods respectively, the conveyer comprises a support frame arranged on the support bench in the top end of the scaffold, the bottom in one side of the support frame is provided witha fixed rod, the support frame is further provided with a rotary rod penetrating the support frame, the rotary rod is sleeved by a rotating wheel, and the rotating wheel sleeves a stay rope. The construction platform easy to mount and dismount can improve the construction efficiency.

The invention discloses a building construction device capable of improving work efficiency, which comprises a box body, a fixed cover is fixedly connected to the top of the box body, and a fixed plate is fixedly connected between two sides of the inner wall of the box body. One side of the top of the inner wall of the cover is fixedly connected with the first motor through the connecting block, and one end of the output shaft of the first motor is fixedly connected with the first rotating rod, and the bottom end of the first rotating rod penetrates the box body and extends to the bottom of the box body. Inside, one end of the first rotating rod extending to the inside of the box is rotationally connected to one side of the top of the fixed plate through a bearing. The present invention relates to the technical field of building construction equipment. The device for building construction that can improve work efficiency can realize simultaneous screening and mixing of building materials, which not only simplifies the construction process, but also reduces the burden on the staff, saves time, and improves the work efficiency of building construction. Reduced costs during construction.

A modularization teaching robot with reconfigurable functions, belongs to the field of electromechanical control and automatization teaching, which comprises a core servo module and an accessory, wherein the core servo module includes a main body host, a main body deputy, a dwang of a joint plane, a dwang of rotation plane, a DC machine and a reinforcement plate. The main body host is symmetricalalong a center line and of phi-shape; the reinforcement plate is reinforced on two side walls; the main body deputy is of U-shape, the main body host and the main body deputy are connected through thedwang of a joint plane and the dwang of rotation plane; the DC machine is mounted on the main body host; a connecting module is mounted on four joint planes of the core servo module, the core servo module are combined into a reconfigurable robot through the connecting module, or the core servo module and the accessory are combined into the robot. The invention provides a high level teaching experiment platform which integrates machinery, electron, control theory and software engineering, with strong practice teaching functions.

The invention discloses a wall auxiliary device for building construction. The wall auxiliary device comprises a side supporting plate and a fixing seat, wherein the side supporting plate is fixedly connected to the left side of the top of the fixing seat, a rectangular groove is formed in the surface of the right side of the side supporting plate, and round holes are formed in the upper end of the rectangular groove and located in the front surface and the back surface of the side supporting plate. A connecting plate drives a pulley to ascend and descend through an arranged transmission lifting mechanism, so that the pulley exceeds a damping mechanism to be in contact with the ground, and the device is convenient to move and does not need to be disassembled; when some old walls are operated, the device is moved to the edge of the wall through sliding, so that the side supporting plate is tightly attached to the wall; and then a supporting mechanism is taken out of a containing groove and is vertically placed, so that a clamping mechanism in the supporting plate extends out from the interior, a semicircular clamping cylinder in the clamping mechanism is clamped with a transverse rod, and a locking structure is controlled through an adjusting knob to lock a rotating rod, so that the device can be used for carrying out operation on some high positions.

The invention discloses an environmental protection and energy-saving device for a steel structure building wall, which comprises a foam board, a first steel frame and a second steel frame, the first steel frame is provided with a mounting frame, and the second steel frame is provided with a fixing frame. There are threaded rods and clamping plates on the frame, slide bars are provided on both sides of the mounting frame, the first spring is provided on the back of the mounting frame, rolling rods, rotating rods and tension springs are provided on the fixed frame, and the two sides of the fixed frame There is a second spring on the side, and a support shaft and a bearing are provided under the fixed frame. By setting the mounting frame and rotating the threaded rod on the mounting frame, the threaded rod can drive the clamping plate to clamp and fix the foam board, and at the same time You can push the foam board to make the installation frame slide to the inside of the first steel frame, so that the foam board can be stuck on the fixed frame, so that the foam board is easy to install and disassemble, and it is not necessary to smash the foam board when removing the foam board Destruction is conducive to the reuse of foam boards, environmental protection and energy saving.

The invention relates to the technical field of building materials, and discloses a transfer device for tubular building construction materials. The transfer device for the tubular building construction materials comprises a base, a first spring is fixedly installed above the base, a bearing plate is movably installed at one end, away from the base, of the first spring, and a limiting column is fixedly installed in the middle of the bearing plate. A pipe sleeves the outer side of the limiting column, under the action of gravity, the first spring is extruded, the bearing plate moves downwards along with the first spring, a trapezoidal block is driven to move downwards under pulling of a connecting column, the bevel edge of the trapezoidal block pushes a rotating rod to rotate, a second spring extends, a fixing rod moves towards the two sides of the limiting column, and therefore fixing is carried out on the inner wall of the pipe; and by rotating a poke rod, the poke rod extrudes a baffle, a moving rod moves rightwards along with the baffle, the moving rod extrudes air pressure of the right side of an air cylinder to the upper side of the air cylinder, a piston rod is pushed to move upwards, the piston rod pushes the bearing plate to move upwards, the device is restored, and the pipe can be taken again conveniently.

The invention discloses a safety lifting platform for building construction. The safety lifting platform comprises a lifting platform, an inner cavity is formed in the lifting platform, a driving gear is hinged to the interior of the inner cavity, the driving gear meshes with a driven gear, a first fixing block is fixedly connected to the interior of the inner cavity, a first rotating rod is fixedly connected to the driving gear, a rotating block is hinged to the end part of the first rotating rod, an opening is formed in the rotating block, a vertical rod penetrates through the opening and is sleeved with a sleeve block, and protruding blocks are fixedly connected to the two ends of the vertical rod. According to the lifting platform, the lower surface of a bearing block is slidably connected to the inner wall of the inner cavity, the bearing block can extend out of the inner cavity under pushing of a second rotating arm, and therefore the width of the lifting platform is increased, a worker on the lifting platform can better use the bearing block, and when the lifting platform breaks down and stops running, the worker can step on the bearing block to enter the interior of the building, so that the personal safety of the worker is guaranteed.

The invention discloses a tool changing device for a vertical broaching machine. The tool changing device comprises a dwang (19), a swing block (12), a guide rod (10) and a sliding block (4), wherein the dwang (19) is rotatably arranged on the vertical broaching machine; one end of the swing block (12) is fixed on the dwang (19); the guide rod (10) can be rotatably arranged on the vertical broaching machine, one end of the guide rod (10) is rotatably connected with the other end of the swing block (12); and the sliding block (4) is arranged on the other end of the guide rod (10) and provided with a sliding chute which can be matched with the end part of a bolt (3) used for installing a broach (20). In the tool changing device for the vertical broaching machine provided by the invention, the tool changing of the vertical broaching machine is performed at the exterior of a machine tool instead of the interior of the machine tool, thereby reducing the labor intensity and operation dangerof an operator, saving time and improving the production efficiency; and the tool changing device is simple in structure, is convenient for regulation, insulation and exchange, is easy to maintain and has extremely low manufacturing cost.

The invention discloses a switch, particularly discloses a remote-control starter for a computer, which comprises a controller, a starter and a remote controller, and is characterized in that the controller is provided with a battery, an infrared receiver and a single-chip microcomputer, the battery is in circuit connection with the single-chip microcomputer, and the single-chip microcomputer is in circuit connection with the infrared receiver; the starter comprises a micromotor and a dwang, wherein the micromotor is in circuit connection with the battery, the dwang is rotatably connected with the micromotor, and a pressing bar is fixedly disposed at the end of the dwang; the remote controller is provided with an infrared emitter, a battery, and a switch button, and the infrared emitter is in circuit connection with the battery and the switch button. The remote-control starter for a computer of the invention can realize remote control of the starting of a desktop computer, which saves manpower.

The invention relates to a prefabricated building, a construction method, and a working method. The design points are that the thread direction of the vertical rotation rod of the first half-stroke damping unit is the same as the vertical rotation rod of the second half-stroke damping unit. The threads are in the same direction, and the racks of the first half-stroke damping unit and the second half-stroke damping unit are placed on different sides of the rotating vertical rod: or, the racks of the first half-stroke damping unit and the second half-stroke damping unit are placed on the same side On the same side as the vertical rotation rod, the thread direction of the vertical rotation rod of the first half-stroke damping unit is consistent with the thread direction of the vertical rotation rod of the second half-stroke damping unit. At this time, the first half-stroke damping The vertical rotation rods of the unit and the second half-stroke damping unit rotate in the same direction.

The invention belongs to the field of building construction, and particularly relates to a hydraulic system for building construction. The hydraulic system comprises a support plate, wherein a transverse plane is contacted with the bottom of the support plate, a building is constructed at the top of the transverse plane, a hydraulic cylinder is fixedly mounted at the top of the support plate, a telescopic rod is fixedly mounted on an output shaft of the hydraulic cylinder, a transverse plate is fixedly mounted at the top of the telescopic rod, an adjusting plate is slidably mounted at the top of the transverse plate, an adjusting groove is formed in the right side of the adjusting plate, an extending mechanism is slidably mounted in the adjusting groove, a buffering mechanism is arranged at the top of the adjusting plate, an adjusting mechanism is fixedly mounted at the left side of the transverse plate, the extending mechanism comprises an extending plate, a moving groove is formed in the inner wall of the bottom of the adjusting groove, a first rotating rod is rotationally mounted in the moving groove, and the outer side of the first rotating rod is in threaded connection with a moving block. The adjusting plate can be adjusted and moved, so that the situation that a constructor needs to continuously adjust the position to complete construction is avoided, the construction safety degree is greatly increased, and use is easy and convenient.

The invention discloses a rapid construction device and method for a steel structure fabricated building, and particularly relates to the technical field of steel structure fabricated building construction. The rapid construction device comprises a supporting bottom plate, a sleeving cylinder is arranged at the top end of the supporting bottom plate, and an adjusting mechanism is arranged in the sleeving cylinder; and the adjusting mechanism comprises a first transmission motor arranged in the sleeving cylinder, and a rotating rod is connected with the output end of the first transmission motor. By arranging the adjusting mechanism, a placing concave plate drives a cross beam to move upwards to a specified mounting height, the first transmission motor drives het rotating rod to rotate, meanwhile, a second transmission motor drives a transmission toothed bar to rotate, so that the transverse angle, the mounting height and the transverse displacement of the cross beam can be adjusted, in this way, the mounting position of the cross beam can be determined, the cross beam can be rapidly and transversely mounted on the two supporting beams, manual carrying and butt joint are not needed, the butt joint stability is better, and the construction efficiency is effectively improved.

The invention discloses a threshold structure with a water stop ridge platform. The threshold structure with the water stop ridge platform comprises a threshold main body, a waterproof layer, a protective layer, a water stop ridge platform main body and a building wall, the waterproof layer is arranged on the outer side of the threshold main body, the protective layer is arranged on the outer side of the waterproof layer, a rotating groove is formed in the threshold main body, a rotating rod is arranged on the outer side of the threshold main body. A limiting rod is arranged on the outer side of the rotating rod, a bearing is arranged in the water stop ridge platform main body, and the building wall is arranged on the outer side of the threshold main body. According to the threshold structure with the water stop ridge platform, rotating plates and moving plates are arranged, a first pull rope drives a rotating shaft to rotate, so that a gear rotates, the gear is in meshed connection with another gear, the other gear is driven to rotate, and therefore the two rotating plates can rotate together; and after rotation, the moving plates makes contact with the ground all the time under the action of a spring, so that an arch bridge shape is formed, people can conveniently pass through an arch bridge, and operation is more convenient.