76results about How to "Easy to roll up" patented technology

A medical patient transfer handcart is composed of a main body with lift mechanism and universal castors, and a transversely movable plate mechanism with dual-layer structure consisting of cloth reel and its frame end jointer holder, clutch gear, and upper and lower movable clothes (or plates).

The invention relates to a fire extinguishing system and a fire extinguishing method thereof, belongs to the technical field of fire control; the fire extinguishing system comprises a fire hydrant box; the fire hydrant box comprises a box body, a box door, a fire hose, joints fixedly arranged at the two ends of the fire hose, a fire water gun and a fire hydrant head; the inner wall of the box bodyis fixedly provided with an installation base; an installation arm is hinged with the installation base; the installation arm is rotationally provided with a winding roller; the winding roller is perpendicular to the installation arm; a fixing rod is fixedly arranged on a limiting disk; a compression roller parallel to the winding roller is rotationally arranged on the limiting disk; an abuttingassembly for driving the compression roller to abut against the fire hose on the winding roller is arranged on the limiting disk; and one end, away from the installation arm, of the winding roller isprovided with a rotating handle convenient to rotate the winding roller. During the using process, the box door is opened, and then the installation arm is rotated, so that the installation arm is perpendicular to the box boxy; the rotating handle is dismounted, the fire hose is taken down; the two joints of the fire hose are respectively connected with the fire water gun and the fire hydrant head, and the fire hose is dragged to a fire place to extinguish the fire.

The invention discloses a transmission device of a curtain. The transmission device comprises a frame, a reel pipe, a main spring, a spring shaft, an oil pressure damper, a torsion spring, a positioning set and a curtain cloth set. After curtain cloth of the curtain cloth set is pulled down to an arbitrary height, the reverse rotation of the main spring can be prevented by the positioning set once the application of force is stopped, so as to allow the curtain cloth to stop at the arbitrary height; in addition, no matter at which height the curtain cloth stops, only by pulling down the curtain cloth and releasing the curtain cloth immediately, the positioning set does not prevent the rotation of the main spring any longer, the main spring rotates with the reel pipe, and the curtain cloth rolls up automatically till to be positioned. The transmission device can achieve the aims of stopping the curtain cloth of the curtain at the arbitrary height and easily allowing the curtain cloth to roll up automatically.

The invention discloses a cloth inspecting machine, which comprises an upper coiling mechanism, a cloth inspecting mechanism and a rolling up mechanism, wherein the upper coiling mechanism comprises an upper coiling frame; the upper coiling frame comprises a transmission assembly for enabling multiple cloth rolls to be placed; and one end, close to the cloth inspecting mechanism, of the transmission assembly is in rotation connection with a supporting roller for supporting the cloth rolls. Upper coiling is facilitated, and the upper coiling efficiency is improved.

The invention relates to an optical device for detecting and identifying damaged paper money by using a photosensitive element. The optical device comprises a luminous tube array, a receiving tube array, a light transmission board and a bracket, wherein the light transmission board is fixedly arranged above the bracket; a luminous signal processing circuit board and a received signal processing circuit board are fixedly arranged at the inner bottom of the bracket; the inner part of the bracket is partitioned into relatively independent light detection cavities by partition walls; each light detection cavity is opposite to the luminous signal processing circuit board and the received signal processing circuit board; and the luminous tube array and the receiving tube array which are matched with each other in the light detection cavity are fixed on the luminous signal processing circuit board and the received signal processing circuit board respectively. By the optical device, the shortcomings of high error distinction rate and leakage rate, high cost, high maintenance requirement and high installation difficulty in the prior art are overcome; due to the specific design, whether various damages exist on paper money or not can be judged accurately; and the optical device has the advantages of low cost, simple structure and low mechanical installation requirement; furthermore, the optical device is not contacted with the paper money, so the optical device is not required to be maintained frequently.

The invention relates to the technical field of needle textile machines, in particular to a fabric inspecting and rolling machine. An installing bottom plate, a supporting mechanism, a conveying mechanism, a flattening mechanism, a guiding plate and a winding mechanism are included; the conveying mechanism is installed on the top of the supporting mechanism; the flattening mechanism is fixedly installed on one side, on the top face of the installing bottom plate, of the conveying mechanism; and the winding mechanism is fixedly installed on the side, deviating from the conveying mechanism on the top face of the installing bottom plate, of the flattening mechanism. According to the fabric inspecting and rolling machine, due to the fact that a conveying belt is wound and connected to two conveying belt shafts in a sliding manner, fabric is can be completely unfolded on the conveying belt, so that a user can conveniently inspect the fabric; and meanwhile, one end of one of the conveying belt shafts is rotationally connected with a conveying driving motor so that the fabric can freely rotate along with the conveying belt, and inspection on the fabric is further facilitated.

The invention relates to a tent with good air permeability, which comprises an inner tent, an outer tent and a support bar. The tent is characterized in that: the outer tent comprises an upper tent body and a lower tent body which are connected by an abutted seam, the abutted seam is provided with a plurality of fixing devices for hanging the rolled lower tent body, and a cross point of the abutted seam and the support bar is provided with a connecting device for fixedly connecting an underpinning. The tent has the advantages of greatly improving the ventilating surface of the inner tent, and improving the ventilation efficiency of the whole tent because of the breathable fabric and gauze reelable double ventilation window structure of the inner tent; therefore, the users can operate in the tent, the time is saved and the operation is convenient.

The invention discloses a spinning driver cloth rolling device. The cloth rolling device comprises a rotating shaft (1), a left side baffle (2), a right side baffle (2), an elastic rope (3) and a stopping frame (4), the left side baffle (2) and the right side baffle (2) are installed on the two sides of the rotating shaft (1), the elastic rope (3) is fixed to the left end point and the right end point of the rotating shaft (1), the stopping frame (4) is installed on the left side baffle (2) and the right side baffle (2) and can move up and down. Gaps (5) are formed in the rotating shaft (1), the number of the gaps (5) is 2-6, and the gaps (5) are communicated with one another. The spinning driver cloth rolling device is simple in structure, convenient to operate and suitable for all spinning machines, saves manpower resources, improves the cloth rolling efficiency and preventing rolled cloth from folding or wrinkling.

The invention discloses a device for standing long jump. The device comprises a first plastic pad, a second plastic pad is clamped at the upper end of the first plastic pad, and a pressure sensor is arranged between the first plastic pad and the second plastic pad; the two ends of the first plastic pad and the two ends of the second plastic pad are in contact connection with connecting strips, thefirst plastic pad is provided with protrusions, and the second plastic pad is provided with a circular groove; the circular groove tightly sleeves the pressure sensor, the connecting strips are provided with first buckles, the first buckles are provided with first clamping blocks, the connecting strips are provided with second buckles, and the second buckles are provided with a second clamping blocks. The pressure sensor is arranged between the two layers of plastic, the two layers of plastic can be fastened through the buckles, and the pressure sensor is fixed so that the product can be usedoutdoors in all weather, the performance of an athlete can be measured conveniently, and the influence of the weather on matches can be eliminated.

The invention discloses automatic bundling equipment for a junction box. The automatic bundling equipment comprises a workbench and a vibrating loading machine, wherein a plurality of wire wrapping tools, an automatic transmission mechanism, an automatic bundling mechanism, an automatic take-out mechanism and a servo control table are mounted on the workbench; a distributing mechanism of the vibrating loading machine is connected with a charge hole of the automatic bundling mechanism through a charge pipeline; a gas blowing tube connected with a gas pump is arranged between the distributing mechanism and the charge pipeline, so that ribbons are blown into the automatic bundling mechanism through a charge pipeline in sequence to perform bundling operation on the junction box; each wire wrapping tool is separately fixed onto the automatic transmission mechanism; and the gas pump, the automatic bundling mechanism, the vibrating loading machine and the automatic take-out mechanism are separately connected with the servo control table, and are controlled by the servo control table. According to the automatic bundling equipment disclosed by the invention, cables of the junction box are partially rolled through the wire wrapping tools, and then, automatic bundling and tying, shearing and waste recycling are integrally completed in a fully-automatic mode, so that only one person can complete large-batch production; and moreover, working efficiency is extremely high and is improved by 5-8 times, and labor cost is low.

The invention discloses a print fixing device of a printer. The print fixing device comprises a printing operation table, and an extruding plate and a servo motor are fixedly connected between first side plates. The first side plates are rotationally connected with a driving roll, and the two ends of the driving roll are fixedly connected with first wire winding rolls. A driven roll is rotationally connected between second side plates, and a movable extruding plate is slidingly placed on the side, close to the top end of the driving roll, of the printing operation table. According to the printfixing device, print products can be fixedly conveniently, and the print products can be demounted and fixed conveniently to guarantee the printing effect of the print products. The driving roll andthe first wire winding rolls are utilized, the first wire winding rolls can roll up a steel wire rope conveniently when rotating, then the movable extruding plate can be driven to move conveniently, and the movable extruding plate and a fixed extruding plate can clamp objects to be printed conveniently. By means of a rotary handle, the rotary handle can be manually rotated conveniently, so that the driven roll rotates, then the movable extruding plate is pulled back conveniently, and the objects to be printed are taken down conveniently.

The invention relates to the field of gauze processing equipment, in particular to secondary rolling equipment provided with a dust removal assembly and used for a scattered gauze. The secondary rolling equipment comprises a height regulating structure, a dust removal structure, a supporting structure, a guide structure, a storage slot and a rolling structure, wherein the rolling structure is fixed to the supporting structure for rolling the scattered gauze through the rolling structure, and the rolled gauze is dismounted more conveniently; the guide structure is arranged on the supporting structure, and is connected to the rolling structure; the rolling structure drives the guide structure to rotate in a reverse direction; while the gauze is guided, force reverse to the direction of the rolling structure is generated by the gauze, so that counter acting force is automatically applied to the gauze while rolling is performed, and therefore, rolling of the gauze is more tight, and rolling quality is greatly improved; and the dust removal structure is arranged inside the supporting structure, so that dust refuse on the gauze is conveniently cleared under negative pressure, and the dust removal structure is effectively prevented from being blocked, and therefore, the dust removal effect is greatly improved.

The invention discloses a yoga mat. The yoga mat comprises a bottom layer, a middle layer and a top layer which are pasted in turn from bottom to top; the extension surface is arranged at one end of the bottom layer along the horizontal direction; one side of the extension surface is provided with a winding shaft which is convenient for winding of the yoga mat; the bottom layer is an antiskid layer; the middle layer is a breathable layer; the top layer is an elastic abrasion-resistant layer; the top layer is formed by PVC (Polyvinyl Chloride) materials; the middle layer is formed by anti-tear grid cloth. According to the yoga mat, the structure is simple, the implementation is convenient, and the mass production can be achieved; the yoga mat comprises the winding shaft and accordingly the yoga mat can wind up conveniently and accordingly the storage is convenient; the yoga mat is formed by the three layers, the bottom layer is the antiskid layer and accordingly sliding of the yoga mat is prevented, the middle layer is the breathable layer and accordingly sweating and skid of yoga people are prevented, and the top layer is the abrasion-resistant layer and accordingly the yoga mat can be firm and durable; the top layer is formed by the PVC materials and accordingly the yoga mat is firm and durable.

The invention discloses a mechanical arm of a robot. The mechanical arm comprises a driving barrel, wherein two parallel connection blocks are arranged at the left end of the driving barrel, and connection holes are formed in the connection blocks, so that fixing of the left end of the barrel is facilitated; a touch handle is arranged at the right end of the driving barrel; the touch handle is made of a rubber material; the right end part of the touch handle is a contracted tip end; the section of the touch handle is rectangular; a negative pressure cavity is formed inside the touch handle; and a plurality of contraction slots are formed in the upper surface of the touch handle in an equal spacing manner. The mechanical arm is simple and reasonable in structure; the inside of the touch handle made of flexible plastic is hollowed, and then the tensile strengths of the upper and lower surfaces of the touch handle are set to be different, so that the touch handle can be bent in different extents by adjusting air pressure inside the touch handle; and therefore, a cup can be conveniently held. The mechanical arm of the robot is simpler in structure, thus contributing to reducing the cost; furthermore, the touch handle is made of a plastic material, thus facilitating injection molding; and the mechanical arm is high in machining efficiency and high in practicability, and the production efficiency of the device can be improved favorably.

The invention discloses a device for quickly constructing flood control sub-embankments and an operation method thereof. The device is formed by splicing a plurality of rubber bags, each rubber bag comprises a bag body, each bag body comprises a bag surface and a bag bottom, each bag bottom comprises a bag body bottom and an outwards-extending section, each outwards-extending section extends out of the bottom of the corresponding bag body, a water filling port is formed at the top of each bag surface, a water outlet is formed at the position, close to the corresponding bag bottom, of each bagsurface, and a plurality of pile holes are formed in the outwards-extending sections and matched with fixing piles. The rubber bags are simple to arrange and facilitate water filling, flood control sub-embankment construction is rapid, the number of needed personnel is small, materials are few, the bag bodies can be recycled, no waste materials exist, environmental pollution cannot be caused, andthe low-carbon, environment-friendly and ecological saving type flood control technology is achieved. The bags are filled with water to form a water retaining dam, and water is resisted with water. Meanwhile, the water in the bags provides acting force for water retaining of the bag bodies, and the bag bodies are filled with the water, so that dual purposes of the water are achieved. Flood controlsub-embankment scour prevention and large embankment scour prevention are combined into a whole, flood overflowing can be prevented, a large embankment can be prevented from being scoured, and the safety of the large embankment is guaranteed.

The invention discloses a goods delivery unmanned aerial vehicle with a rainproof function. The goods delivery unmanned aerial vehicle with the rainproof function comprises an unmanned aerial vehiclebody; fixing frames are all arranged on the surrounding side surfaces and the bottom surface of the unmanned aerial vehicle body; rotating rods are arranged on the fixing frames; rain shielding fabrics are arranged on the rotating rods in a curled manner; second adsorption magnetic strips are arranged at the head ends of the rain shielding fabrics; connecting fabrics are arranged on the two sidesof the rain shielding fabrics; a hydraulic telescopic rod is arranged at the central position of the bottom end of the unmanned aerial vehicle body; a fixing plate is arranged at the lower end of thehydraulic telescopic rod; a press plate is arranged in the lower end of the fixing plate; stands are arranged around the bottom end of the unmanned aerial vehicle body; stand rods are arranged betweenthe stands; clamping plates are arranged on the stand rods; bottom rods are arranged at the bottom ends of the stands; rubber rods are arranged at the lower ends of the bottom rods; arms are mountedon the two sides of the unmanned aerial vehicle body; and propellers are arranged at the tail ends of the arms. According to the goods delivery unmanned aerial vehicle with the rainproof function, thegoods delivery unmanned aerial vehicle has a rainproof function so as to guarantee that goods cannot be wet by rain when being delivered in rainy days; and as the goods delivery unmanned aerial vehicle lands in a stable manner and the shaking force is small, sufficient protection is provided for goods delivery.

The invention relates to an agricultural production irrigation device with a filter function. The agricultural production irrigation device with a filter function includes a vehicle body, a water pump, a water tank, a winding device, a water pipe, a nozzle, a hose, a water outlet pipe, a filter mechanism and a water drainage mechanism, wherein the water drainage mechanism includes a connection ring, fixing blocks and two water drainage components, each water drainage component includes a pressure plate, a pressure rod, a squeeze plate and a spring, the filter mechanism includes a fixed box, awater pipe, a filter cartridge, a circular ring, a limiting component, a drive component, two transmission assemblies and two cleaning assemblies, and each cleaning assembly includes a scraper blade and two connection units. According to the agricultural production irrigation device with a filter function, the function of impurity removal can be achieved through the filter mechanism, aquatic organisms can be prevented from being pumped into the water tank, and the chance of nozzle clogging is reduced; the squeezing function is achieved through a squeezing mechanism, water left in the water pipe is squeezed out conveniently, the weight of the water pipe is reduced, and the water pipe is winded conveniently, so that the convenience of water pipe winding is improved.

The invention discloses a sedimentation tank applied to sewage treatment, belongs to the field of sewage treatment, and particularly relates to a sedimentation tank applied to sewage treatment, whichcomprises a tank body, a positioning table, a plurality of first movable sedimentation tables and a plurality of second movable sedimentation tables. The sedimentation tables are movably arranged, andaccumulated objects on the sedimentation tables are scraped off through the positioning table. Then a baffle is used for blocking, after the baffle is laid flat, sediment is collected and dischargedtogether, the sewage disposal efficiency is higher, meanwhile, the baffle is used, the baffle makes contact with the bottom wall of the pond while the baffle is laid flat, accumulated objects discharged from the baffle are limited between the baffle and the side wall of the pond and then discharged from a sewage discharging opening, the area is reduced, and the sweeping difficulty is lowered, besides, as the distance between the scraper close to the positioning table and the bottom wall of the pool is greater than that between the scraper far away from the positioning table and the bottom wallof the pool, the thicker part on the bottom wall of the pool can be scraped by the scraper close to the positioning table, and then the other scraper is used for secondary scraping, so that the scraper is not easy to damage due to excessive blockage of primary scraping.

The invention discloses an intelligent rainproof cover, which belongs to the field of intelligent rain prevention. The intelligent rainproof cover comprises a rainproof cover body; the upper end of the rainproof cover body is fixed with a central roller; the outer end of the central roller is fixed with a motor; the outer end of the motor is connected with a control device; the control device comprises a driving circuit, an MCU, a WIFI module and a water drop detection circuit; the driving circuit is electrically connected with the motor and the MCU respectively; the control device is also connected with a raindrop detection module and the WiFi module; and one end, far away from a balcony window, of the rainproof cover body is fixed with a protective net, the weight of the rainproof covercan be increased during a raining process, draping of the rainproof cover is increased, the rainproof cover is not easy to be attached to other objects near the balcony window, rainproof loopholes canbe reduced, obvious rainproof effects can be generated, and through a self-adsorption mechanism, the lower end of the rainproof cover can be attached to a window frame, the possibility that the rainproof cover floats with the wind can be reduced, and the rainproof effects are increased.

The invention discloses a lacquer bucket cover flanging device. The lacquer bucket cover flanging device comprises a bracket and a die arranged on the bracket, wherein the die comprises a lower die (2) for containing a lacquer bucket cover (5) and an upper die having a guide groove and matching with the lower die (2); a round groove for containing the lacquer bucket cover (5) is formed in the upper surface of the lower die (2); an annular groove (4) is formed in the bottom surface of the upper die (1) and is located at the position corresponding to the edge of the round groove (3); the bottom surface of the annular groove (4) is arc-shaped. As the guide groove of the die can flange the lacquer bucket cover conveniently, the lacquer bucket cover flanging device can prevent a hand from being hurt by the edge of the lacquer bucket cover.

The invention discloses an antitheft device for a cell phone, comprising a cell phone casing. The upper part of the cell phone casing is provided with a forwarding and reversing motor, where an outputshaft is disposed. The cell phone casing is provided with a groove for placing the cell phone, and the groove is provided with a baffle plate for sealing the groove. The upper end of the baffle plateis coiled around the output shaft, and the lower end of the baffle plate is provided with a first electromagnet. The groove is provided with a second magnet attracting with the first electromagnet. The cell phone casing is provided with a power supply module for running the first electromagnet, and a fingerprint module. The antitheft device also comprises a microprocessor and a memory. The memoryis electrically connected to the microprocessor, and the fingerprint module is electrically connected to the microprocessor. The microprocessor is respectively and electrically connected to the forwarding and reversing motor and the power supply module. The baffle plate can prevent thefts from taking out the cell phone.

The objective of the invention is to provide a technique capable of handling simply with one exterior member, both a region to be installed flat and a region to be installed bent in a wire harness. This wire harness comprises the exterior member formed into a sheet shape, and an electric wire laid in such a manner that a region in at least a portion along the extending direction thereof overlaps with the exterior member. At least a portion of the section over which the insulation cover of the electric wire overlaps with the exterior member is welded. A region in a portion of the exterior member along the extending direction of the electric wire is in a flat state. A region in at least another portion of the exterior member along the extending direction of the electric wire is curled in a direction intersecting the extending direction of the electric wire.

The invention relates to a corn sorting storage box. A main machine case, a power supply switch, an alarm horn, an integrated block and a battery are arranged on the box, a large one-yuan coin inlet, a medium five-jiao coin inlet and a small one-jiao coin inlet are formed at the upper part of the box, three LED (light emitting diode) indicator lamps are arranged on the above three coin inlets correspondingly, three inner barrels and three outer barrels are arranged inside the box, the height of each inner barrel is the total height of 100 corresponding coins, a pressure plate switch and a spring are arranged at an outer barrel opening at the height; when a coin falls down to trigger breakover, the lamp lights up and the horn sounds one time; and when 100 coins are stored in one inner barrel, the pressure plate switch is switched on to give an alarm, a pull plate is pulled away from the bottom of the box, the inner barrel is taken out, the pressure plate switch resets and alarming is removed, and 100 coins in the inner barrel can be conveniently wrapped with paper and are stored or exchanged with a bank. The corn sorting storage box has a simple and skilful structure, is low in cost, has an sound / light alerting and alarming function, is convenient and intuitive, and is very suitable for children.

The invention discloses a hydraulic rolling and spreading machine for geotechnical cloth. The hydraulic rolling and spreading machine consists of a frame (13), a hydraulic motor (6), a drive device, adriving reel (15), a driven reel (2), carrier rollers and universal wheels (9), wherein the pin type connection is adopted by the whole hydraulic rolling and spreading machine and a large arm of a loading machine. The hydraulic motor (6) is connected with a hydraulic pump of the loading machine through a hydraulic pipeline; the hydraulic motor is connected with the driving reel, which is arrangedon the frame, through a driving belt wheel (7) and a driven belt wheel (4); the driving reel is connected with the driven reel (2), which is arranged at the upper part of the frame, through drive sprocket wheels (10, 12); the driving reel and the driven reel are the same in horizontal position and are further mutually parallel; two side-by-side carrier rollers (3, 3') are arranged at the middle of the front side of the hydraulic rolling and spreading machine and are connected onto the frame. The hydraulic rolling and spreading machine is high in efficiency; the labor force of 6 to 8 persons can be saved; the operability is high. The geotechnical cloth can be guaranteed to be spread in time on a road base needing to be cured for curing. The hydraulic rolling and spreading machine not onlycan be used for paving, but also can be used for rolling, and can be also used for loading and transporting, and one machine is used for realizing multiple purposes.

The invention discloses a sun hat. The sun hat comprises a hat body, wherein a storage box is fixedly installed on the top surface of the hat top of the hat body, a winding drum is rotatably installed in a storage groove, the winding drum is wound with a rainproof rain-shielding cloth, and the whole hat body can be covered after the rain-shielding cloth is expanded, so that a role of shielding rain is achieved. During use, a pulling wire is pulled to enable the rain-shielding cloth to cover the whole hat body, so that the hat has the role of shielding the rain; after the completion, a rotating ring is rotated, the rotating ring drives a gear and the winding drum to rotate, the rain-shielding cloth is retracted into the storage groove, and the brim of the hat can be conveniently rolled up when a user wears the hat; the interference to certain activities is reduced, certain space exists between the hat and a head to facilitate perspiration discharge and heat discharge, and the size of the hat can be automatically adjusted according to the head shapes of different people; and meanwhile, the hat can be used for shielding the rain in rainy days.

A marine anchoring chain stopper disclosed in the invention comprises a chain stopper body, a base is arranged at the lowermost side position of the chain stopper body, a connecting plate is arranged at the right side position of the base, a rolling wheel is arranged at the upper side position of the connecting plate, a winding drum is arranged at the middle position of the right side of the rolling wheel, a clamping block is arranged on the outer side of the winding drum, a rotating shaft is arranged in the middle of the winding drum, a knife switch is arranged on the upper side of the rolling wheel, a notch is formed in the connecting position of the knife switch and the base, a handle is arranged on the left side of the knife switch, a handle is arranged on the right side of the knife switch, an inserting sheath is arranged in the middle of the handle, and an iron chain can be clamped on the winding drum through the clamping block, so the winding drum can be used for winding the iron chain more conveniently, and after the knife switch is put down, the iron chain can be pulled out slowly due to the fact that the iron chain is clamped on the clamping block, and the iron chain cannot fall down directly due to the weight.

The invention discloses a rectangular pyramid coiling drum applied to a cold-rolled strip steel coiling machine. A coiling drum inner shaft and a rotation head are coaxially arranged, wherein a pull rod passes through the coiling drum inner shaft, is connected with an expanding-shrinking oil cylinder at one end of the rotation head and stretches along the axial direction of the coiling drum inner shaft; a crosshead positioning part is arranged at the front end of the coiling drum inner shaft and is connected with the pull rod; four expanding-shrinking blocks are respectively arranged on the inner side surfaces of the coiling drum inner shaft; one end of each expanding-shrinking block is in contact with each baffling block of the crosshead positioning part; four coiling drum fan-shaped plates are arranged outside the expanding-shrinking blocks; wedge-shaped slots corresponding to N wedge-shaped bars are formed in the inner side surfaces of the coiling drum fan-shaped plates; the four coiling drum fan-shaped plates are arranged on the outer sides of the expanding-shrinking blocks by virtue of the wedge-shaped slots; the corresponding wedge-shaped bars on each expanding-shrinking block form a rectangular pyramid expanding-shrinking mechanism; the bottom surface of the rectangular pyramid faces towards the crosshead positioning part. The rectangular pyramid coiling drum applied to the cold-rolled strip steel coiling machine is capable of conveniently loading coils and unloading coils; the coiling quality of the cold-rolled strip steel is ensured under the coiling conditions of high rate and high tension.