39results about How to "Avoiding the danger of falling" patented technology

The invention discloses a self-cleaning outdoor advertising board. The self-cleaning outdoor advertising board comprises a main rod, a lower fixing plate and an upper fixing plate, the lower fixing plate and the upper fixing plate are fixedly connected to the side wall of the main rod, an advertising board body is fixedly connected between the lower fixing plate and the upper fixing plate, a through hole is formed in the upper end of the main rod, and net plates are arranged at two openings of the through hole. An impeller, a magnetic sliding plug, a wiping mechanism, a spiral coil and a magnetic rod are arranged, when the wind power is large, the wind power drives the impeller to rotate, the magnetic sliding plug is pushed to slide up and down by magnetic force, and an elastic balloon isinflated and expanded, so a sliding ring is driven by a sliding block to slide along a fixed plate, a cleaning brush wipes the surface of the advertising board without manual cleaning, the danger thatthe advertising board is prone to falling off during manual cleaning is avoided, and the labor intensity of cleaning personnel is reduced; and meanwhile, colored lamps can emit light when the magnetic sliding plug slides, the attraction of the advertising board is enhanced, and the better advertising effect is achieved.

The invention relates to a formwork-stripping device with a corner formwork element (18) which can be connected on both sides to in each case a further formwork element (20), wherein a vertically movable pull rod (30) is provided in the corner formwork element for moving the further formwork elements relative to the corner formwork element. The pull rod has an engagement surface, which can be moved together with it, for a lever and / or a coupling region (32), which can be moved together with it, for a pull chain.

The invention provides a friction type overload automatic disengaging sling. The danger that the heavy object falls after being hoisted is avoided. According to the solved technical scheme, the friction type overload automatic disengaging sling comprises a supporting frame, and a clamping device is arranged at the upper portion in the supporting frame and is composed of two clamping blocks. Each clamping block comprises an arc block, wherein the outer circle of the arc block is connected with a horizontal plate, a first connecting rod and a first pin shaft are arranged below the horizontal plate, the first connecting rod is arranged on the first pin shaft in a sleeving manner through a sliding groove, a baffle is arranged on the outer side of the first connecting rod, a strong spring is connected between the first connecting rod and the baffle, the upper end of the first connecting rod is hinged to the horizontal plate, and a limiting step is arranged in the supporting frame. A U-shaped frame is arranged under the clamping device and comprises a left vertical plate and a right vertical plate, a tension spring is connected between the inner side walls of the two baffles, and the friction force to the U-shaped frame from the left baffle and the right baffle under the action of the tension spring is larger than the gravity of the U-shaped frame, and adjusting screws are fixed to the left side and the right side of the supporting frame correspondingly. The friction type overload automatic disengaging sling is ingenious in concept and safe in usage.

The invention provides an overload protection device for a steel wire rope. The overload protection device can effectively solve the problem that a heavy object is prone to fall after the heavy objectis lifted. The overload protection device comprises a supporting frame; a clamping device is arranged in the supporting frame; clamping blocks are arranged in a bilateral symmetry mode and arc-shapedblocks; the outer circle surfaces of the arc-shaped blocks are connected with horizontal plates; first connecting rods and first pin shafts are arranged below the horizontal plates; the first connecting rods are arranged on the first pin shafts in a sleeving mode through sliding grooves; baffles are arranged on the outer sides of the first connecting rods; strong springs are connected between thefirst connecting rods and the baffles; a limiting step is arranged in the supporting frame; a lifting unit is arranged right below the clamping device; clamping grooves are formed in the opposite endsurfaces of the horizontal plates; elastic blocks are arranged between every two horizontal plates; the inner side surface of each elastic block is an arc surface; every two elastic blocks can move up and down and can be clamped into the clamping grooves; the outer sides of every two elastic blocks are connected to one cam; and the rotation of each cam can drive the corresponding two elastic blocks to move up and down. The overload protection device has the advantages of being ingenious in concept and safe to use.

The invention discloses a vehicle-mounted flow type automobile maintenance lifting machine. The vehicle-mounted flow type automobile maintenance lifting machine is matched with a vehicle-mounted platform to be used. The vehicle-mounted flow type automobile maintenance lifting machine comprises a horizontal pushing mechanism, an overturn mechanism and a lifting mechanism. The lifting mechanism comprises a supporting assembly, a lifting assembly, a power device and a transmission device. The lifting assembly and the transmission device are arranged on the supporting assembly, and the lifting assembly is connected with the transmission device. The power device drives the lifting assembly to move up and down through the transmission device. The horizontal pushing mechanism is installed on the vehicle-mounted platform. The lifting mechanism is hinged to the horizontal pushing mechanism through the overturn mechanism. According to the vehicle-mounted flow type automobile maintenance lifting machine, the maintenance demand outside maintenance sites required by clients can be met, the door-to-door service can be provided for the clients, and the problems of failed vehicles can be solved on the spot, so that the maintenance efficiency of the failed vehicles is improved.

The invention discloses a pedestal pan ring capable of automatic lifting, which is characterized in that the pedestal pan ring can lift automatically through a lifting platform. The lifting power supply is provided by a motor, a driving gear of the output end of the motor is a worm, and a driven gear engaged with the driving gear is a turbine; an eccentric cylindrical sliding block is fixedly arranged at the side wall of the turbine and extends into a slideway of a swinging rod, the front end of the swinging rod is pinned on one side of a shaft arranged at the upper front end of a stand, and the swinging rod is also symmetrically arranged at the opposite side of the shaft and pinned on the other side of the shaft; back ends of two swinging rods are both provided with symmetrical slideways, two cylindrical sliding blocks are respectively arranged upside and downside two sides of the lifting platform integrated with the pedestal pan ring into a whole, and the lower cylindrical sliding block extends into the slideway; the upper and the lower cylindrical sliding blocks at two sides are arranged in the slideway at the back of the stand and perpendicular to the stand in a penetrating way; and an upper travel switch and a lower travel switch are arranged between the areas where the swinging rods move on the stand. After defecation, the motor is started and then the pedestal pan ring can be lifted slowly, therefore, the difficulties of pins and needles and standing up caused by compression of leg nervus vascularis are quickly relieved and orthostatic hypotension dizziness is prevented.

The invention provides a steel wire rope overload automatic falling-off lifting sling. The situation that when heavy objects exceed the load carrying capacity of the steel wire rope, the lifting slingcan automatically make the heavy objects be separated is better achieved, and the risk that the heavy objects fall after being lifted is avoided. According to the technical scheme, the steel wire rope overload automatic falling-off lifting sling comprises a clamping device, and the clamping device is composed of two clamping blocks; each clamping block comprises a semicircular arc-shaped block, and horizontal plate clamping devices are connected to the exterior of each clamping block; a first connecting rod and a first pin shaft are arranged below each horizontal plate clamping device, the first connecting rods are arranged on the first pin shafts in a sleeving mode, a strong spring is connected between each first connecting rod and a corresponding baffle, and a supporting frame is internally provided with a limiting step; a second pin shaft is arranged below each clamping device, a sliding block is attached to the inner side of each baffle, and a second connecting rod is hinged to the inner side of each sliding block; transverse through grooves are formed in a bottom plate, and the sliding blocks are located above the transverse through grooves; and adjusting screw rods are fixedto the two sides of a supporting frame, and the end, placed in the supporting frame, of each adjusting screw rod is in threaded connection with a vertical plate. The steel wire rope overload automatic falling-off lifting sling is novel in conception and ingenious in structure.

The invention provides an injection molding machine template suitable for mounting a circular mold. The template comprises a large template face, four pull rods and four T-slots, wherein the four rods are arranged along four diagonal corners of the large template face, and the four T-slots are provided on the inner sides of the four pull rods. The injection molding machine template suitable for mounting the circular mold has a short mold disassembly time, and avoids the risk of falling of the mold during the assembling and dismantling process; the problem that the pressing plate fixing screw hole on the template is easily affected by the water, oil and dust and other impurities and causes the thread corrosion, resulting in difficulty in assembly and disassembly of the pressing plate fixing screws is avoided; the problem that in the production process the mold needs to be frequently replaced, the threaded hole on the template in this frequent assembly and disassembly situation is prone to causing thread corrosion and slipping and resultantly the use is affected is avoided.

The invention discloses a physiotherapy assistance rehabilitation robot comprising a handle, a main stick barrel, an assistance walking lower limb rehabilitation device, a fixed sleeve, and an antiskid support base; one end, close to the fixed sleeve, of the handle is embedded in one end, far away from the fixed sleeve, of the main stick barrel; the assistance walking lower limb rehabilitation device is fixedly connected with the main stick barrel; one end, far away from the handle, of the main stick barrel is embedded in one end, close to the handle, of the fixed sleeve. When a patient walkson a complex landscape, a grip trigger mechanism is arranged, the patient can use a grip trigger ejection brake mechanism to control a limit expansion mechanism to enable an antiskid mechanism to disengage from the walking assistance machine, thus providing multi-support member linked support, ensuring a stable support effect on various landscapes, and effectively preventing the patient from falling down due to unstable center of gravity and support failure.

The invention relates to the technical field of furniture doors and windows, in particular to a dustproof window convenient to clean. The dustproof window comprises a fixed casement and an opening casement located at one one side of the fixed casement, the opening casement comprises an outer window and an inner window, a fixed disc is arranged below the opening casement, a limiting groove is formed in the portion, close to the right end, of the fixed disc, a rotating shaft capable of coming in and out of the limiting groove is placed in the limiting groove, one end of the outer window and one end of the inner window are connected to the rotating shaft in a sleeving mode, the outer window is internally provided with a cavity, a sliding opening communicated with the cavity is formed in the bottom edge of the outer window, the inner window is located below the outer window and can be clamped into the cavity of the outer window, a rotatable rotary table is arranged in the middle of the fixed disc, and a strip-shaped groove is formed in the radial direction of the rotary table. According to the dustproof window, when the outer window needs to be cleaned, the inner window is clamped into the outer window firstly, the rotating shaft is lifted up to enable the lower end of the rotating shaft to get away from the limiting groove, then, the outer window is limited on the rotary table, the outer window is rotated into a room through the rotary table, cleaning is conducted on the outer window or the inner window in the room, use of other specific tools is avoided, and operation is easier and more convenient.

The invention discloses automatic inspection equipment for a power cable, and relates to the technical field of cable inspection equipment. During inspection, a microcontroller controls a driving module and enables a driving motor to act, the driving motor drives a driving wheel to rotate through a driving shaft, the whole equipment walks on a steel cable, an inspection camera shoots the cable, and transmits information back to the ground through a communication module or stores the information in a storage module, so that later information reading is facilitated; when the equipment walks to a connector, an electric push rod jacks up a movable arm, the driving wheel is separated from a steel cable, at the moment, shifting teeth on a shifting wheel make contact with the connector under blocking of a cross connector, the shifting wheel rotates, the shifting wheel drives a rotating shaft to rotate, and under cooperation of a bevel gear set, a transmission shaft drives a rotating disc to rotate, the rotating disc drives a left side walking assembly and a right side walking assembly to move towards the two sides along a through groove through the driving rod, so that the left side walking assembly and the right side walking assembly avoid the connector, and jamming with the connector is avoided.

The invention belongs to the field of load hanging elements or devices which are attached to lifting, dropping or drawing mechanisms of a crane or used for being connected with the mechanisms, and discloses a template hoisting device. The template hoisting device is matched with a lifting hook of the crane and comprises a bottom plate, wherein a sliding chute is formed in the bottom plate and is matched with a left frame and a right frame through rollers; horizontal cylinder groups are distributed in the left frame and the right frame; cylinders connected in parallel are arranged in the cylinder units; piston rods of the two cylinder groups are opposite, and pneumatic clamping jaws are fixed on the piston rods; a connecting rod structure for controlling the relative distance of the left frame and the right frame is arranged at upper ends of the left frame and the right frame, and a lifting hole allowing the lifting hook of the crane to penetrate is formed in the connecting rod structure. According to the template hoisting device, the template falling risk caused by traditional template binding is avoided, a template is directly placed in the device, manpower required by binding is saved, further, the template is placed on the bottom plate, and the balance performance in the hoisting process is better.

The invention provides a crawling device for sealant filling for gaps among ceramic tiles of a wall body, and an operation method. The crawling device for sealant filling for the gaps among the ceramic tiles of the wall body comprises a vehicle plate, wherein a sealant spray mechanism used for storing and uniformly extruding a sealant is installed at the top of the vehicle plate, and crawling mechanisms used for driving the whole device to realize forward movement, backward movement, left movement and right movement are installed at the front end and the rear end of the bottom of the vehicle plate; a vacuum mechanism used for being adsorbed and connected with the surfaces of the ceramic tiles are installed at the tail end of each crawling mechanism; and travelling cooperation mechanisms are symmetrically installed on the parts of the two sides of the middle of the vehicle plate, and each travelling cooperation mechanism is also provided with a vacuum mechanism. The position of a sealant guide pipe is adjusted by virtue of a distance sensor, and then the position of a nozzle is changed, so that the sealant is accurately sprayed into the gaps of the ceramic tiles; and meanwhile, a vehicle body linearly moves forwards through the crawling mechanisms, so that a spray effect on the gaps is achieved.

The invention discloses a crane for building construction, and belongs to the technical field of building construction. The crane comprises a bearing plate, the front side wall and the rear side wall of the bearing plate are rotatably and slidably connected with first protection plates, and the left side wall and the rear side wall of the bearing plate are rotatably connected with second protection plates; the lower side wall of the bearing plate is fixedly connected with a plurality of supporting columns; a movable plate is arranged below the bearing plate, the movable plate is connected to the supporting columns in a sliding mode, and the supporting columns are sleeved with a plurality of first springs enabling the movable plate to reset; the movable plate and the bearing plate are jointly provided with a first driving mechanism and a second driving mechanism; a self-locking mechanism is arranged on the bearing plate; and the self-locking mechanism is used for limiting the second protection plates after the second protection plates rotate to a vertical state. The purposes of preventing objects from falling from high altitudes and facilitating loading and unloading can be achieved.

The invention discloses a container packing system suitable for small goods. The container packing system suitable for small goods comprises a first transmission chain, a second transmission chain and a third transmission chain, wherein the three transmission chains are all belt transmission devices, both the first transmission chain and the second transmission chain are hinged together through a fourth connecting plate, and the second transmission chain and the third transmission chain are hinged together through a fifth connecting plate; a first hydraulic cylinder and a second hydraulic cylinder which are connected in a hinged mode are arranged on the fourth connecting plate and the fifth connecting plate correspondingly; movable trundles are arranged at the bottoms of the first hydraulic cylinder and the second hydraulic cylinder and on the portions, close to the free ends of the outer sides, of the bottoms of the first transmission chain and the third transmission chain correspondingly; and the first hydraulic cylinder and the second hydraulic cylinder are controlled to rise and fall through electromagnetic valve driving, and thus the first transmission chain, the second transmission chain and the third transmission chain can adapt to deformation with different heights and lengths. The container packing system can adapt to conveying and adjustment of goods by different distances and can also adapt to conveying and adjustment of goods at different altitudes, and requirements of various goods in containers are met to the maximum extent.

The invention relates to an electrical equipment lifting transportation vehicle, and belongs to the technical field of electric power maintenance equipment. The electrical equipment lifting transportation vehicle comprises a vehicle body pulled by a pulling unit, wherein the vehicle body comprises a support, telescoping mechanisms, crawling ladders arranged on two sides of the support, and walkingwheels arranged at the lower ends of the crawling ladders; the support is connected with the crawling ladders through the telescoping mechanisms and has the freedom degree of lifting; rotary rings hinged with the support through a rotary shaft, and a group of holding cabinets with the end parts being hinged with the rotary rings are arranged on the support; pick-and-place ports with cabinet doorsare formed in the side walls of the holding cabinets; the pick-and-place port of the holding cabinet located at the highest part is higher than the top end of the support; the pick-and-place port ofthe holding cabinet located at the lowest part is lower than the bottom end of the support; guiding and sliding chutes parallel to the axes of the rotary rings are arranged on the bottom plates of theholding cabinets; and guiding and sliding plates in sliding fit with the guiding and sliding chutes are arranged in the holding cabinets. The working personnel controls the rotary rings to rotate soas to lift electrical equipment, so that the time and the labor are saved, the occurrence of the falling accident is effectively avoided, and the electrical equipment lifting transportation vehicle issafe and reliable.

The invention discloses a pedestal pan ring capable of automatic lifting, which is characterized in that the pedestal pan ring can lift automatically through a lifting platform. The lifting power supply is provided by a motor, a driving gear of the output end of the motor is a worm, and a driven gear engaged with the driving gear is a turbine; an eccentric cylindrical sliding block is fixedly arranged at the side wall of the turbine and extends into a slideway of a swinging rod, the front end of the swinging rod is pinned on one side of a shaft arranged at the upper front end of a stand, and the swinging rod is also symmetrically arranged at the opposite side of the shaft and pinned on the other side of the shaft; back ends of two swinging rods are both provided with symmetrical slideways, two cylindrical sliding blocks are respectively arranged upside and downside two sides of the lifting platform integrated with the pedestal pan ring into a whole, and the lower cylindrical sliding block extends into the slideway; the upper and the lower cylindrical sliding blocks at two sides are arranged in the slideway at the back of the stand and perpendicular to the stand in a penetrating way; and an upper travel switch and a lower travel switch are arranged between the areas where the swinging rods move on the stand. After defecation, the motor is started and then the pedestal pan ring can be lifted slowly, therefore, the difficulties of pins and needles and standing up caused by compression of leg nervus vascularis are quickly relieved and orthostatic hypotension dizziness is prevented.

The invention discloses a house ceiling mounting structure and relates to the technical field of ceiling mounting. The house ceiling mounting structure comprises base columns, hanging parts, main keels and auxiliary keels. Two threaded holes are formed in one surface of each base column and are each of a blind opening structure; each hanging part comprises a hanging column and a reinforcing sleeve, the cross section of each hanging column is of an inverted trapezoidal structure, a threaded rod is fixed to one end of each hanging column, the threaded rods and the threaded holes are in threadedfit, and a U-shaped clamping plate is fixed to the other end of each hanging column; and each reinforcing sleeve is of a conical sleeve structure, the reinforcing sleeves are connected to the outer surfaces of the hanging columns in a sleeving mode, and a flange ring is fixed to one end of each reinforcing sleeve. According to the house ceiling structure, through clearance fit of the U-shaped clamping plates and the main keels, the main keels are positioned and lifted; the auxiliary keels are supported through supporting blocks of the U-shaped structures on one sides of the main keels, and theangles of the auxiliary keels are conveniently adjusted through arc surface structures on the supporting blocks, so that the forced applied by workers is reduced during mounting; and the positioningeffect is good, and the problem that during mounting, the height is excessively large, force applying of the workers is unbalanced, and consequently the workers fall is solved.

The invention provides a friction type overload automatic disengaging sling. The danger that the heavy object falls after being hoisted is avoided. According to the solved technical scheme, the friction type overload automatic disengaging sling comprises a supporting frame, and a clamping device is arranged at the upper portion in the supporting frame and is composed of two clamping blocks. Each clamping block comprises an arc block, wherein the outer circle of the arc block is connected with a horizontal plate, a first connecting rod and a first pin shaft are arranged below the horizontal plate, the first connecting rod is arranged on the first pin shaft in a sleeving manner through a sliding groove, a baffle is arranged on the outer side of the first connecting rod, a strong spring is connected between the first connecting rod and the baffle, the upper end of the first connecting rod is hinged to the horizontal plate, and a limiting step is arranged in the supporting frame. A U-shaped frame is arranged under the clamping device and comprises a left vertical plate and a right vertical plate, a tension spring is connected between the inner side walls of the two baffles, and the friction force to the U-shaped frame from the left baffle and the right baffle under the action of the tension spring is larger than the gravity of the U-shaped frame, and adjusting screws are fixed to the left side and the right side of the supporting frame correspondingly. The friction type overload automatic disengaging sling is ingenious in concept and safe in usage.

The invention relates to the technical field of hoisting of steel structural members, and discloses a rapid hoisting process of modular steel structural members. The rapid hoisting process of the modular steel structural members comprises the following steps: step one, selecting a site and constructing a hoisting equipment base on a construction site, mounting hoisting equipment, transporting a preset steel structural member to the construction site and mounting a hoisting frame on the steel structural member according to actual hoisting requirements; step two, after the hoisting frame is mounted, overturning the steel structural member to adjust the position of the steel structural member by using the hoisting equipment, and after the position is adjusted, connecting the hoisting equipment with the hoisting frame on the steel structural member; and step three, hoisting the steel structural member for a certain distance in advance, mounting auxiliary equipment on the ground, connectingthe auxiliary equipment with the hoisting frame, at the moment, overturning a next steel structural member to adjust the position of the next steel structural member by the hoisting equipment, and using the auxiliary equipment as required. According to the rapid hoisting process of the modular steel structural members, the steel structural members can be rapidly and stably hoisted, and the anglesof the steel structural members can further be adjusted during hoisting.

The safety protection equipment applied to steel production comprises a production chamber, a conveying mechanism is arranged on one side of the production chamber, a cooling mechanism is arranged below the conveying mechanism, a blow-drying mechanism is arranged at one end of the top of the conveying mechanism, protection mechanisms are arranged on the two sides of the conveying mechanism, and each protection mechanism comprises a protection chamber. A protection groove is formed in one side of the protection chamber, a limiting plate is slidably connected to the inner side wall of the protection chamber, a protection plate is arranged on one side of the limiting plate, two protection rods which are arranged in a crossed mode are arranged between the two ends of the limiting plate and the two ends of the protection plate, fixing bases are hinged to the two ends of one protection rod, and sliding bases are hinged to the two ends of the other protection rod. The problems that in an existing patent, an operator is protected only by arranging a baffle, the temperature of produced steel is very high, the operator is possibly injured, a safe working area cannot be defined, and the operator is likely to sluggish and neglect production safety are solved.

The invention provides a crawling device and an operation method for filling gaps between wall tiles with a beautifying agent, which includes a car board, and a spray mechanism for storing and uniformly extruding the beautifying agent is installed on the top of the car board, The front and rear ends of the bottom of the car plate are equipped with a crawling mechanism for driving the entire device to move forward, backward, left and right; the end of the crawling mechanism is equipped with a vacuum mechanism for adsorption and connection with the tile surface; The two sides in the middle of the vehicle plate are symmetrically equipped with a walking coordination mechanism, and the walking coordination mechanism is also equipped with a vacuum mechanism. Use the distance sensor to adjust the position of the agent tube, thereby changing the position of the nozzle, so that the beautifying agent can be accurately sprayed into the gaps of the tiles; at the same time, the car body advances in a straight line through the crawling mechanism to achieve the spraying effect on the gaps.

The invention relates to an electrical equipment lifting transportation vehicle, and belongs to the technical field of electric power maintenance equipment. The electrical equipment lifting transportation vehicle comprises a vehicle body pulled by a pulling unit, wherein the vehicle body comprises a support, telescoping mechanisms, crawling ladders arranged on two sides of the support, and walkingwheels arranged at the lower ends of the crawling ladders; the support is connected with the crawling ladders through the telescoping mechanisms and has the freedom degree of lifting; rotary rings hinged with the support through a rotary shaft, and a group of holding cabinets with the end parts being hinged with the rotary rings are arranged on the support; pick-and-place ports with cabinet doorsare formed in the side walls of the holding cabinets; the pick-and-place port of the holding cabinet located at the highest part is higher than the top end of the support; the pick-and-place port ofthe holding cabinet located at the lowest part is lower than the bottom end of the support; guiding and sliding chutes parallel to the axes of the rotary rings are arranged on the bottom plates of theholding cabinets; and guiding and sliding plates in sliding fit with the guiding and sliding chutes are arranged in the holding cabinets. The working personnel controls the rotary rings to rotate soas to lift electrical equipment, so that the time and the labor are saved, the occurrence of the falling accident is effectively avoided, and the electrical equipment lifting transportation vehicle issafe and reliable.

The invention relates to the technical field of mounting and overhauling of electric equipment, in particular to a suspension device for a safety belt. The suspension device comprises first angle iron, second angle iron, third angle iron, fourth angle iron, fifth angle iron, a first turnbuckle, a second turnbuckle, a steel wire buckle and a wire rope. The first angle iron is connected with the second angle iron through a bolt. The fifth angle iron is connected with the fourth angle iron through a bolt. One end of the first turnbuckle is connected with the first angle iron. The other end of the first turnbuckle is connected with one end of the wire rope through the steel wire buckle. One end of the second turnbuckle is connected with the fifth angle iron, and the other end of the second turnbuckle is connected with the other end of the wire rope through the steel wire buckle. The wire rope penetrates a groove formed in one end of the third angle iron. The suspension device for the safety belt is not limited to the on-site environment when used, is suitable for mounting of various sites and high in universality and provides the reliable safety belt suspension guarantee for high operation personnel.

The invention discloses a jacking mold trolley efficient and convenient to use, and relates to the technical field of lining trolleys. The jacking mold trolley efficient and convenient to use comprises a bottom frame, the bottom of the bottom frame is fixedly connected with fixed supporting legs, the top of the bottom frame is fixedly connected with supporting columns, the top ends of the supporting columns are fixedly connected with a top beam, a ladder stand is in sliding connection between the top beam and the front face of the bottom frame, sliding rails are welded to the front face of thebottom frame, rollers are fixedly connected to the bottom of the ladder stand, and the tops of the sliding rails are fixedly connected with sliding grooves matched with the rollers. According to thejacking mold trolley efficient and convenient to use, the ladder stand is slidingly arranged on the front face of the trolley, a worker can freely climb to the trolley from any position, use is convenient, the ladder stand is moved to the needed position, then, L-shaped plug pins are pulled down to be inserted into adjacent positioning pin holes, rapid fixing is achieved, the phenomenon that during worker climbing, the ladder stand is stressed to move, and the worker falls off is avoided, and use is easy and convenient.

The invention discloses a container bottom frame structure for logistics transportation, which comprises four support blocks, cross beams connected transversely between the support blocks, and longitudinal beams longitudinally connected between the support blocks. A first right-angle connector is fitted between the beam and the bracket block, a second right-angle connector is matched between the longitudinal beam and the bracket block, and two suspensions are arranged between the bottoms of the two beams. This device can increase the strength of the bottom of the container to avoid distortion and deformation during the lifting process. At the same time, the device can be adjusted to the best balance position through the lifting component to ensure the balance during lifting and avoid falling. Danger.

The invention discloses a window with a good dustproof effect, and relates to the technical field of furniture doors and windows. The window with the good dustproof effect comprises a fixed fan and adisc, the disc is placed on one side of the fixed fan, a rotary shaft is rotatably connected to one side of the top of the disc, an open fan is arranged on the outer surface of the rotary shaft, the open fan comprises an external window and an internal window, one sides of the external window and the internal window sleeve the outer surface of the rotary shaft, and a movable box is fixedly connected to the top of the back surface of the external window. The window with the good dustproof effect can well clean the surface, located outdoor, of the external window, the cleaning of the surface, located outdoor, of the external window is very convenient, time is shortened and labor is saved, the cleaning efficiency is greatly improved, the stability of reducing the window installation is reduced due to the fact that the windows are not required to be switched by a worker, operation on an external wall is not required by the worker, so that the danger of falling caused by external window cleaning is avoided, and the practicability of the dustproof window is greatly improved.