94results about How to "Quick pull out" patented technology

The invention relates to an electronic measuring tape comprising an external housing provided with a tape exit opening, a tape winding-up device, on which the tape is wound in such a way that it is withdrawable from the external housing through the tape exit opening, wherein said tape is provided with first and second surfaces. A radiation source is arranged between the tape exit opening and the tape winding-up device for sending a beam to the first surface of the tape. A detecting device is placed at the side of the second surface of the tape for receiving the beam and transmitting data representing the received radiation to an evaluation device for determining the length of the tape extracted through the tape exit opening. According to said invention, the tape is radiation permeable and provided with a biunique code on one of the surface thereof. Said code represents the length of the tape extracted through the tape exit opening and consists of elements influencing the radiation transmitting capacity of the tape. Said invention also relates to an electronic length-measuring device provided with display and evaluation units for determining a length according to received data and for generating the displayed visual data on the display unit according to said length, wherein said measuring tape is connected to the evaluation unit.

The invention discloses a peeling, shearing, riveting and twisting integrated machine. The peeling, shearing, riveting and twisting integrated machine comprises a wire feeding mechanism, a rotating mechanism, a terminal mechanism, a guiding-in mechanism, a feeding and taking mechanism, a cap twisting mechanism, a cutting and peeling mechanism, a wire taking mechanism, a terminal vibrating plate, a connector vibrating plate, a main air valve, a PLC and a touch screen as well as a pay-off rack, an auxiliary mechanism and a connector vibrating plate which are arranged outside the frame. The auxiliary mechanism, the wire feeding mechanism, the terminal mechanism, the terminal vibrating plate, the rotating mechanism, the guiding-in mechanism, the feeding and taking mechanism, the cap twisting mechanism, the connector vibrating plate, the cutting and peeling mechanism, the wire taking mechanism, the main air valve and the touch screen are respectively connected with the PLC electrically. After the scheme is adopted, the original scattered stations are integrated on equipment for processing and treating, production cost is reduced, and space utilization rate of the workshop is increased. The equipment is relatively high in degree of intelligence and convenient to operate.

The invention relates to a roller-changing device. The roller-changing device comprises tracks, a lifting rope suspended above the tracks, a trolley moving on the tracks and a bracket arranged at the bottom of the tracks, wherein a tightly-pressing device connected with the furnace roller is arranged in the front of the trolley, a hook is arranged at the tail end of the trolley, a self-locking device matched with the hook is arranged on the tracks and comprises a weight block, a limiting screw and a guide cylinder, the weight block is arranged inside the guide cylinder, a guide groove is formed in the weight block, the limiting screw is fixedly arranged in the side wall of the guide cylinder, and the end part of the limiting screw is located inside the guide groove. According to the roller-changing device, by virtue of the tightly-pressing device, the spindle nose of the furnace roller can be rapidly fixed, the furnace roller can be stably and rapidly pulled out from or loaded into the hearth through the trolley, the moving trolley with rollers can be automatically locked by virtue of the self-locking device and thus the baking intensity of operators due to the furnace gas is decreased and the risk that the furnace wall is rubbed by the furnace roller is reduced.

The invention aims to solve the problem that the diameter of a pipeline is not easy to adjust in the prior art, and discloses a pipeline diameter changing device. The pipeline diameter changing devicecomprises a first rotating shaft, a guide wheel, a wheel frame, a push plate, a first spiral spring, a guide rod, a mounting box, a first guide pipe, a second spiral spring, a sliding rod, a second guide pipe, an extrusion plate, a rotating rod, a third spiral spring, a baffle, a top plate, an end cover, an ejector rod, a fourth spiral spring, a sleeve, a rack, a first motor, a supporting frame,a second rotating shaft, a gear, a pull rope, a rotating cylinder, a rack, a sliding frame, a fifth spiral spring, a second motor, a guide ring, a connecting frame, a pull ring, a pipeline body and athird motor. According to the pipeline diameter changing device, the device can move in the pipeline through the driving of the third motor, and meanwhile, the extrusion plate can be used for extruding the pipeline through the driving of the first motor, so that the fine adjustment of the diameter of the pipeline is realized, and meanwhile, the deformation part can be conveniently repaired.

The invention discloses an aircraft ground ventilation cooling method and device. The aircraft ground ventilation cooling device is adopted to forcibly blow strong cold air into an air inlet of an airborne equipment compartment and an air inlet of an engine compartment of an aircraft, and the strong cold air passes through the interiors of the airborne equipment compartment and the engine compartment to blow hot air in the airborne equipment compartment and engine compartment of the aircraft out of the compartments to fulfill the aim of ventilation cooling. According to the method and the device, the strong cold air can be provided for the airborne equipment compartment and engine compartment of the aircraft to cool the airborne equipment compartment and the engine compartment by ventilation on the ground, so that the safety of an engine and airborne equipment is ensured; the aircraft ground ventilation cooling device is vehicle-mounted, can be rapidly transferred to the field through a trailer when being required, and can be fixed to the ground through a brake, and can be reliably grounded during working, so that the bad influence of static electricity on the aircraft is prevented; a small diesel generator is arranged on the ventilation cooling device, and using is flexible; the strong cold air is provided by two high-power centrifugal fans, and the device can be applied to aircrafts of various types.

The invention discloses a power battery change structure of an automobile. The power battery change structure is arranged at the rear part of rear seats of the automobile, and comprises a top plate and a support plate used for supporting a power battery panel, wherein the support plate is an L shaped plate, the lower end of the support plate is hinged with an automobile body, the top plate is arranged at the upper end of the support plate and a support seat used for supporting the top plate is arranged in a trunk of the automobile. When a power battery is changed, the trunk of the automobile needs to be opened only, the support plate is placed in the trunk of the automobile and cooperates with the support of the support seat in the trunk of the automobile through the top plate, the power battery on an inclined support can be quickly drawn out through a door of the trunk of the automobile so as to change the power battery, therefore the power battery is convenient to change and operate, and the labor intensity of a changing worker can be alleviated.

The invention discloses a mold polishing device. The device comprises a housing, wherein a first box body is fixedly connected to the bottom part of the housing; supporting legs are fixedly connectedto two sides of the bottom part of the housing and are positioned at two sides of the first box body; two motors are fixedly connected to the bottom part of an inner cavity of the first box body; output shafts of the motors pass through the housing and the first box body and extend into the inner cavity of the housing, and the output shafts of the motors are connected to polishing barrels; bearings are fixedly connected to the top part of the housing. According to the mold polishing device, supporting plates, air blowers, air inlet pipes, ventilating pipes, dust collecting ports, air outlet pipes, a second box body, a dust storing box, roller racks and rollers are arranged, so that the wastes produced by polishing can be timely removed and are prevented from flying everywhere to pollute surrounding environment, and the circumstance that a user inhales harmful wastes leading to influence on the body can be avoided; the working efficiency of the user is improved; and the mold apparent mass and the maintaining efficiency can be improved.

The invention discloses a blowing type multi-cavity alternative powder mixing machine and relates to the technical field of powder mixers. The machine specifically comprises a base, a mixing cylinder,air blowing mechanisms, a feeding cylinder and a pressing mechanism, wherein a motor is mounted in the middle of the interior of the base; the mixing cylinder is fixed above a supporting disc; the air blowing mechanisms are arranged on the outer side of the mixing cylinder at equal intervals in a surrounding mode; each air blowing mechanism is composed of an annular air pipe, a hollow cylinder, aconnecting pipe and a string pipe; the feeding cylinder is fixed above a connecting disc; and the pressing mechanism is arranged in the middle of the upper surface of the top plate. The invention discloses a blowing type multi-cavity alternative powder mixing machine. With a stirring sleeve driven by a rotating shaft, a stirring rod on the stirring sleeve performs mechanical rotation action, so that the purpose that the stirring rod stirs powder is achieved; refrigerant pipes are evenly arranged on the outer side of the motor and used for taking away heat generated by work of the motor, so that the purpose that the motor is cooled is achieved, the motor can obtain good heat dissipation protection, and work is more stable.

The invention relates to a method for extruding curved extrusion products (7a, 7b), whereby the extruded profile is formed in a die that is located upstream of a crosshead (4) of an extrusion installation (1) and is subsequently curved or bent by the action of external forces. The extruded strand (7a, 7b) is taken up at the press outlet by a bearing surface (10) that supports the underside of the strand. Once a partial length of strand has been separated, said length is moved (10) from the press flow and is transported away by the bearing surface, whereby the provision of a supporting surface for the subsequent strand is simultaneously maintained during said transportation by the bearing surface (10). To achieve this, a platform (10) that is located in the press outlet (5), that supports the extruded strand and that can be raised and lowered is divided into functional fields (A, B). The rear functional field (B), which adjoins the front functional field (A) closest to the machine, can be temporarily pivoted into an inclined position in relation to the base.

The invention discloses a fluorescent inflatable reflective belt for highway fences, which comprises a box body and a fixed block. A reflective strip is wrapped around the cylinder, one end of the reflective strip is fixed on the surface of the drum, and the other end is provided with a hook that engages with the fixed block to limit the position; the reflective strip includes two parallel fluorescent tubes and two fluorescent tubes The inflatable reflective tape between the tubes is provided with an air-filled port at the center of the end face of the pulled-out end of the reflective tape; a rubber liner connected to the air-filled port is provided inside the inflatable reflective tape, and a grid-shaped interval is provided on the outer surface of the inflatable reflective tape Two-tone reflective sheeting. The structure of the invention is simple and light, and the two fluorescent tubes provided can increase the guiding effect at night, and can provide the driver with a clearer fence position information prompt, and it is convenient for the driver to predict the bending degree of the fence at the bend. Adjust the steering direction in time.

The invention discloses an air conditioner external unit bearing device convenient to overhaul. The air conditioner external unit bearing device convenient to overhaul comprises a bottom plate and a bearing plate; the bearing plate is in an inverted U shape; sliding rods are fixedly connected to the two sides of the bearing plate; rolling wheels are arranged at one ends of the sliding rods; sliderails adaptive to the rolling wheels are arranged on the two sides of the bottom plate; one section of cylindrical groove is formed in each sliding rod; reinforcing columns are movably arranged in thecylindrical grooves; a pulling part is also arranged at the front end of the middle part of the bearing plate; the pulling part is hinged to the edge of the front end of the bearing plate; an arc groove is formed in the surface of the back side of the pulling part; buffering pads are also arranged at the bottoms of the two sides of the inverted U-shaped bearing plate; and a shock absorbing springis fixedly connected between the upper and lower internal walls in each buffering pad. According to the technical scheme of the air conditioner external unit bearing device convenient to overhaul, aproblem that much inconvenience is caused during moving an air conditioner external unit in the actual using process because the air conditioner external unit is heavier is solved; in addition, the use period is shorter because the weight of the air conditioner external unit is easy to generate larger impact force on the bearing device during mounting and moving is also solved.

The invention belongs to the sealing pad technology field and relates to a transformer shell structure with a noise reduction function. The transformer shell structure comprises a transformer main body and a noise reduction frame. A first sliding groove is arranged in a lower surface of the transformer main body. A first spring, a telescopic rod, a corrugated plate, a limiting block, a first sliding block and a second sliding block are arranged in the noise reduction frame. A connecting plate, a second spring, a connecting rod, a convex block, a limiting circular ring and a sponge sleeve are arranged in a through hole. The limiting circular ring is located on an outer surface of the noise reduction frame. A groove is arranged in the lower surface of the second sliding block. Sound absorption cotton is arranged on an inner wall of the noise reduction frame, and the first spring and the second spring are arranged on outer surfaces of the telescopic rod and the connecting rod. By using the transformer shell structure with the noise reduction function, noises generated by the transformer main body are well reduced, and after noise reduction equipment is damaged, the transformer shell structure is convenient to install and dismount.

The invention discloses an electrical automatic feeding device comprising two transmission rollers arranged on a workbench. The workbench is provided with a U-shaped groove, and the two transmission rollers are rotationally arranged in longitudinal grooves on the two sides of the U-shaped groove through rotating rods. A motor is fixedly arranged on the side wall of the longitudinal groove on one side of the U-shaped groove. The output end of the motor is fixedly connected with one end of each rotating rod located in the corresponding longitudinal groove of the U-shaped groove. The two rotatingrods are both provided with sliding mechanisms corresponding to the transmission rollers. The two ends of each transmission roller are both fixedly sleeved with annular plates. The workbench is provided with pushing mechanisms corresponding to the annular plates. The two transmission rollers are sleeved with a conveying belt. The electrical automatic feeding device can screen materials during feeding, screen out small materials and residues, guarantee the quality of conveyed materials and greatly facilitates follow-up machining of the materials.

The invention belongs to the technical field of charging piles, and particularly relates to an energy-saving charging pile device capable of automatically winding and unwinding a power line. The device comprises a protective seat, a winding seat is rotatably connected to the interior of the protective seat, a rotating shaft is rotatably connected to the interior of the winding seat, and a jackingrod is fixedly connected to the outer surface of the rotating shaft. A flexible rod is movably connected to one side of the jacking rod, a rotating disc is rotatably connected to the position, locatedat one end of the flexible rod, in a take-up base, a coil spring is movably connected to the interior of the rotating disc, a limiting column is fixedly connected to the outer surface of the rotatingdisc, and a limiting spring is movably connected to the interior of the limiting column. One end of the limiting column is movably connected with a take-up reel. Kinetic energy generated when the power line is wound can be collected through the coil spring, and then when the power line is released, potential energy in the coil spring is released again, so that the effect of reusing the power lineis achieved and energy consumption is greatly reduced.

The invention discloses an integrated rail-lifting and sleeper-replacing multifunctional automatic device. The integrated rail-lifting and sleeper-replacing multifunctional automatic device is composed of a self-propelled rail vehicle, an integrated rail-lifting and sleeper-replacing multifunctional device, a charging battery group, an inverter, a hydraulic system and a control system box, whereinthe charging battery group and the inverter provide power for an oil pump and a control system, and an oil tank, the oil pump, a hydraulic control system and an automatic control system are arrangedin the hydraulic system and the control system box; a working position can be automatically and quickly aligned, a steel rail can be quickly jacked up, a sleeper is rotated, a damaged sleeper is pulled out, and a good sleeper is pushed; rail lifting and pushing-pulling of a sleeper adopt an integrated structure, the structure is simple and compact; the rail vehicle can leave a railway track automatically, and the passage of a train is prevented from being affected by the sleeper-replacing operation; the rail vehicle can return to the railway track automatically, and leave a sleeper site afterthe sleeper-replacing operation is completed; and the intelligent control is easy to realize, the operation is convenient, and the working efficiency of the sleeper-replacing is high.

The invention discloses a device for quickly searching faults of a voltage transformer. The bottom of the side cover plate is hinged to one side of the fixed shell plate; chutes are formed in the bottom of the fixed shell plate and the inner side of the side cover plate; a bottom plate of the frame is fixedly connected with a sliding seat; the bottom of the sliding base is slidably connected intothe sliding groove; a supporting frame is fixedly connected to the outer side of the frame, a rotating shaft is fixedly connected to the outer side of the supporting frame, a shaft sleeve is fixedly connected to one end of a linkage push rod, a supporting base is rotatably connected to the other end of the linkage push rod, a fusion tube bin is installed in a quick release fixing sleeve, one end of a drawing plug is inserted into the fixed shell plate, and an iron core is clamped in the frame. According to the device for quickly searching the faults of the voltage transformer, through the matched arrangement of the frame and the linkage push rod, under the pushing of the linkage push rod, the frame and the internal iron core can be separated from the clamping of the fixed shell plate and slide out along the sliding groove, so that the faults of the voltage transformer can be quickly checked, the touch of hands is avoided, and the safety is very good.

A large-stroke oil gas suspension with a rebounding device comprises a rocker arm installed on a wheel and a pulling arm arranged on the rocker arm, wherein a certain acute angle is formed between therocker arm and the pulling arm. The suspension is characterized in that the device comprises a fixing cylinder barrel, a floating piston, a damping valve, a main piston and a connecting rod, whereinthe floating piston, the damping valve, the main piston and the connecting rod are sequentially arranged in the fixing cylinder barrel; the rebounding device is arranged between the connecting rod andthe fixing cylinder barrel; the provided suspension suitable for the rocker arm is simple in structure and suitable for a large-cylinder-diameter rocker arm suspension device, work is stable and reliable, the connecting rod can be effectively restrained from being quickly pulled out and can rebound quickly, and the structure of the suspension is a corrugated pipe type structure; meanwhile, the friction area of rubber and the inner wall of the cylinder barrel can be reduced through the corrugated shape, friction is reduced, and durability is enhanced; and under the effect of the rebounding device, the connecting rod cannot be stretched quickly and can rebound quickly after being stretched.

A multi-purpose roller system quick opening and roller exchange device of a straightening machine relates to the technical field of steel and nonferrous metals. An oil cylinder fixing support is connected with a roller support, a frame inner guide rail is fixed on a memorial gateway of the frame, an idler wheel is connected with the roller support, a lower roller system is installed in the roller support, a quick-opening oil cylinder is connected with the roller support through a connection block by using a bolt, and a movable pad block is installed between the roller support and the oil cylinder fixing support, so that when the roller system works, the idler wheel on the roller system is not contacted with the frame inner guide rail; when a roller is changed, the quick-opening oil cylinder drives the roller system to move towards the guide rail to enable the idler wheel on the roller system to be contacted with the frame inner guide rail; a gap is left between a lower surface of the roller support and the quick-opening oil cylinder in both the roller exchange state and roller un-exchange state; an approach switch is installed on the frame through an approach switch support, and the approach switch is provided with an approach switch information transmitting plate. The multi-purpose roller system quick opening and roller exchange device is simple in structure, only uses the quick-opening oil cylinder to achieve the quick opening and roller exchange of the roller system, greatly reduces manufacture and using cost of equipment, is long in service life, and is smooth and rapid in a roller exchange process compared with an original structure.

The invention provides a safety purse net storage box. The safety purse net storage box comprises a storage box body. The storage box body is provided with a safety purse net storage port extending to the right side wall from the top wall of the storage box body. A safety purse net collecting and releasing supporting frame corresponding to the safety purse net storage port is arranged above the top wall of the storage box body. Sliding wheels are arranged below the bottom wall of the storage box body. The safety purse net storage box further comprises a positioning clamping device used for tightening a safety purse net stored in the storage box. Thus, the safety purse net storage box is simple in structure and convenient to carry, and the suspended fixed location management of the safety purse net is achieved; the damage, caused by contamination, rotting, tying and twisting, to the purse net is reduced, the quality of the safety purse net is guaranteed, and the service life of the safety purse net is prolonged; the safety measure arrangement efficiency of the operation field is improved, and accordingly the power failure time is shortened; and operation is convenient, the application range is wide, and safety and reliability are achieved.

The invention relates to a mop structure. The mop structure comprises: a mop body which is in a sheet shape and can be wound in a roll shape in the length direction. and at least two mop heads arranged at the two ends of the mop body in the length direction respectively, wherein the mop heads are provided with positioning holes used for being installed on positioning columns of a mop reel. The mop heads on the mop body are provided with the positioning holes, so that the mop structure can be fixed on the positioning column of the mop reel, and the defect that in the prior art, a magic tape is adopted, so that the mop is easily separated from a robot is overcome. And the mop body can be wound on the mop reel in a reel manner, so that a new mop body can be conveniently and quickly pulled out, and the dirty mop body can be rewound.

The invention discloses a logic control interlocking structure for handcart in-out and manual separate-switch brake of a circuit breaker, which comprises a circuit breaker main body, a handcart in-out mechanism and a manual separate-switch brake mechanism. The logic control interlocking structure is characterized in that the circuit breaker main body is pushed in and out by the logic control interlocking structure of the handcart in-out mechanism and the manual separate-switch brake mechanism. The logic control interlocking structure consists of a handcart in-out switch (6) and a manual separate-switch brake switch (5) of the handcart in-out mechanism and the manual separate-switch brake mechanism, which are arranged on a panel. Structures of the two switches (5and 6) are mutually matched. The logic control interlocking structure has a simple structure and is convenient to use; the logic control interlocking structure for the handcart in-out and manual separate-switch brake can be mutually matched and restricted, so that the circuit breaker main body is closely matched with a feeding cabinet so as to normally, quickly and stably work. Meanwhile, the logic control interlocking structure can quickly pull out the circuit breaker and is convenient to maintain, repair and replace parts.

The invention relates to a device enabling foaming plugs of a solar water heater to be quickly pulled out The device comprises a cylindrical straight rod, a supporting rod and a plurality of iron hooks, wherein the supporting rod is arranged at the end of the cylindrical straight rod, and the iron hooks are distributed on the cylindrical straight rod. The supporting rod is in a Y shape, is arranged on the arc face of the cylindrical straight rod and is perpendicular to the axis line of the cylindrical straight rod, and Y-shaped planes formed at the two ends of the supporting rod are parallel to the planes at the two ends of the cylindrical straight rod. The device capable of quickly pulling out the foaming plugs of the solar water heater has the advantages that an original method that the foaming plugs are pulled out one by one is changed, the supporting rod and the iron hooks are installed on the cylindrical straight rod based on the lever principle, the supporting rod is installed at the end of the cylindrical straight rod to serve as a fulcrum, the cylindrical straight rod serves as an arm of force, then, pull rings of the foaming plugs are hooked by the iron hooks, and therefore the foaming plugs can be pulled out easily and quickly; accordingly, the device improves efficiency, saves labor and meanwhile will not damage an outer barrel and an inner container of the solar water heater.

The invention discloses a reflective strip for a highway isolation fence with telescopic fastening and tightening. A rotating shaft is provided, and a rotating drum is sleeved on the rotating shaft, and a reflective strip is wound on the rotating drum. One end of the reflective strip is fixed on the surface of the rotating drum, and the other end is provided with a connecting piece that is buckled and limited with the fixed block; The connecting piece includes a pull hook arranged on the fixing block and a clip block that is buckled and connected with one end of the reflective strip. A button is arranged between the two splints, and a positioning hole matched with the button is arranged at the pulled end of the reflective strip. The structure of the present invention is simple and light; the fast disassembly and assembly of the reflective strip can be realized through the provided hook and clip structure, and the effect of stable connection can be achieved.

The invention discloses a retractable outdoor safety fence pile, which comprises a ground pile pipe which is embedded below the ground surface. A ground pile tray with a top end which is slightly higher than the ground surface is arranged at the upper mouth of the ground pile pipe. The upper mouth of the ground pile tray is hinged with a pile mouth cover. A sleeve is arranged at the bottom of the ground pile tray. A rail which can retract into the ground pile pipe and stretch out of the ground pile pipe is installed in the sleeve. When substation equipment is required to be maintained or repaired, the rails can be rapidly pulled out of the ground pile pipe, safety fence belts are connected among the rails to form an isolated area, the time and the labor are saved and the waste of metal resources and manpower resources caused by the use of iron fence trays is avoided.

The invention discloses a novel garbage disposal device for property intelligent management. The novel garbage disposal device comprises an outer box body, an inner box body, a garbage pre-disinfection assembly and an auxiliary pushing assembly, wherein a garbage delivery opening is formed in the outer box body and is used for delivering garbage into the inner box body; the inner box body is movably arranged inside the outer box body; the garbage pre-disinfection assembly is arranged at the inner top of the outer box body; the garbage pre-disinfection assembly is arranged above the inner box body so that when the garbage is delivered to the garbage delivery opening; the garbage is disinfected by the garbage pre-disinfection assembly and then enters the inner box body; bacteria breeding isreduced; and when the garbage in the inner box body is cleaned, the auxiliary pushing assembly can assist in pushing the inner box body to slide along the outer box body, so that the inner box body isseparated from the outer box body, and manpower is saved.

The invention discloses an optical fiber distribution board flange head cap taking device which can quickly and conveniently penetrate into an optical fiber distribution board to take down the rubbercap of a flange head and comprises a plurality of chucks, a plurality of clamping bars and a handle, wherein the clamping bars and the handle are manufactured by adopting the integrally formed technology; the handle comprises a spherical handle tail at the lower end and a circular truncated cone shaped handle at the upper end; the spherical handle tail and the circular truncated cone shaped handleare in smooth connection through a transitional circular arc; the clamping bars are uniformly arranged on the circumference at the upper end of the circular truncated cone shaped handle; the chucks are connected onto the front end heads of the clamping bars; the chucks are fusarium shaped; and the end heads of the chucks point to the central shaft of the circular truncated cone shaped handle. Theoptical fiber distribution board flange head cap taking device is small in size and convenient to carry, can effectively prevent the rubber cap from falling off after the rubber cap is dismantled, has certain anti-static precautions, prevents static electricity from hurting people during the dismantling process, is convenient to operate, lowers the working difficulty, reduces the probability of asafety accident during the working process and effectively improves the working efficiency.

The invention discloses a mattress limiting device for a medical nursing bed, which comprises a bed frame, and arc-shaped protective enclosures are arranged on the surrounding side walls of the bed frame, and the arc-shaped protective enclosure is connected to the bed frame through a splicing connection mechanism. For connection, a buffer clamping mechanism is arranged in the arc-shaped protective enclosure. The present invention improves the existing bed frame, and an arc-shaped protective enclosure is arranged outside the bed frame main body. Between the arc-shaped protective enclosure and the bed frame main body The limit connection is carried out through the splicing connection mechanism. The splicing connection structure is equipped with a buffer clamping mechanism, and the mattress side wall is clamped and limited by the buffer clamping mechanism, thereby avoiding the mattress during the movement of the bed frame. The staggered movement improves the overall limit performance. At the same time, the splicing connection mechanism and the bed frame are slidingly connected. When the mattress needs to be replaced, the arc-shaped protective enclosure can be quickly pulled out, thereby improving the replacement efficiency.

The invention provides a recovery type thick reinforcing bar anchor rod and a recovery method. The recovery type thick reinforcing bar anchor rod is composed of a thick reinforcing bar body (001), a pressure bearing plate (002), a recovery device nut (003), an end cap protection bin (004), a PVC sleeve locating ring (005), a PVC sleeve (006), a reinforcing bar outer threaded head (007), an end-bearing reinforcement hoop (008), an anti-leakage sealing isolation layer (009) and a grouting body (010). The thick reinforcing bar body (001) is connected with the recovery device nut (003) through the reinforcing bar outer threaded head (007). The recovery device nut (003) is welded to the pressure bearing plate (002). The end-bearing reinforcement hoop (008) is in spot welding connection with the pressure bearing plate (002). The recovery method comprises the steps that after anchoring force is unloaded, the exposed part of the thick reinforcing bar body (001) is twisted and rotated counterclockwise until the reinforcing bar body (001) breaks away from the recovery device nut (003), and then the reinforcing bar body (001) is pulled out and recovered.