91results about How to "Fast installation work" patented technology

The invention discloses solar energy illumination equipment capable of being automatically retracted on a rainy day. The solar energy illumination equipment comprises a base, wherein a storage cavitywith an upward opening is arranged in the base; a battery cavity located at the lower side of the storage cavity is arranged in the base; an ascending and descending cavity which is located at the right side of the battery cavity and is communicated with the storage cavity is arranged in the base; an ascending and descending device is arranged in the ascending and descending cavity; an illumination device is fixedly connected above the ascending and descending device; a rainwater detection device used for detecting whether conditions is arranged in the illumination device; two solar sailboardsdevices which are located at the left and right sides of the rainwater detection device and are symmetrically arranged in the illumination device. The invention provides the solar energy illuminationequipment capable of being automatically retracted on the rainy day; the fast installation and collection work of the illumination equipment in outdoor positions can be realized; meanwhile, solar panels can be fast retracted on the rainy day, so that the solar panels are protected from being eroded by acid rain in regions with acid rain weather; the service life of the solar panels is prolonged.

The invention discloses a battery for a new energy vehicle, which includes a support seat, the top of the support seat is provided with a placement groove with openings on both sides, A fixing seat isfixedly installed on the bottom inner wall of the placing groove, A protection box is arranged on the top of the fixing seat, A battery body is arranged in the protection box, both sides of the protection box are provided with clamping grooves, both sides of the support base are provided with first grooves located below the placement grooves, A support block is slidably installed in that first groove, a first support bar is fixedly installed on the top of the support block, the top end of the first support bar extend into the placement groove and is fixedly installed with a second support bar, and a card plate located in a corresponding card groove is fixedly installed at one end of the two second support bar close to each other. The invention has the advantages of simple operation, highpracticability and quick disassembly and assembly of the battery body, thereby facilitating the maintenance work of the battery body.

The invention discloses a TOPCOB-LED display panel based on phase delay film polarized 3D. The TOPCOB-LED display panel comprises a display panel. Two cleaning tanks are symmetrically arranged on thefront surface of the display panel. Two lateral surfaces of the display panel are both fixedly provided with a regulator, one side of which is horizontally provided with a fixed cylinder. The lower surface of the fixed cylinder is vertically connected to a connecting rod. A support bar is horizontally connected to one side of the bottom of the connecting rod. The display panel has a reasonable structural design and is convenient and quick to operate. When a user uses the display panel and watches the display panel for a long time, the display panel will adsorb a lot of dust due to static electricity on the screen. in the device of the invention, a servo motor makes a cleaning brush clean the dust on the screen of the display panel such that the screen of the display panel is kept clean andexcessive dust on the screen is prevented from affecting the watch effect of users; and through a first spring, the cleaning brush can be tightly contacted with the screen of the display panel.

The invention relates to a pipe joint, in particular to a polyvinyl chloride joint for connecting a water tank with a heat pipe of a solar water heater. The body of the joint is divided into two parts, wherein one part is formed by welding plug parts and a heat pipe; and the other part is composed of clamp rings, steel balls, clamp sleeves, compression springs, seal rings and adaptor parts and can be welded with the water tank of the solar water heater or connected with the water tank by screwing a screw thread. When the clamp sleeves are pushed leftwards by external force, a plurality of steel balls slide out of the taper holes of the adaptor parts, the plug parts can be inserted, the external force on the clamp sleeves is removed and the compression springs reset to ensure the steel balls to be stuck in the semi-circular grooves of the plug parts so that the plug parts and the adaptor parts press the seal rings tightly to have sealing effects to ensure the water in the water tank not to leak during operation, and the plug parts can be pulled out when the steel balls slide out of the taper holes of the adaptor parts, thus ensuring convenient, quick, safe and reliable assembly and disassembly of the water tank and the heat pipe of the whole solar water heater.

The invention discloses a cup with a fresh fruit juice squeezing function. The cup comprises a cup body and an upright column arranged at the bottom in the cup body, wherein a bulged table is arranged at the bottom of the right side face of the upright column; a stirring device is arranged above the bulged table, and comprises a sliding plate arranged in a left-right stretching manner, a middle connecting block fixed on the rear side of the sliding plate, a plate wall fixed on the rear side of the middle connecting block and arranged in an upward stretching manner, and a stirring seat arranged above the sliding plate; a first rotating shaft is fixedly arranged at the bottom of the stirring seat; the bottom of the first rotating shaft penetrates through the sliding plate, and is rotationally connected with the sliding plate; an external spline shaft arranged in a downward stretching manner is fixedly arranged at the bottom of the first rotating shaft; a screw rod is fixedly arranged at the top of the stirring seat; a first transfer chamber is arranged in the bulged table; an internal spline shaft arranged in an upper and lower side stretching manner is rotationally connected in a top wall in the first transfer chamber. The cup is simple in structure; up-and-down movement stirring work is automatically controlled; the stirring uniformity is improved; a knife rest can be mounted and dismounted quickly; the stirring stability is improved.

The invention discloses a machining and polishing device of an equidistant rectangular steel bar. The machining and grinding device comprises a polishing rack composed of a base and a supporting frame, the supporting frame is internally provided with a polishing cavity, a through groove is formed in the side, close to the base, of the left side end face of the supporting frame, a raised part is fixedly arranged at the portion, at the inner wall of the right side of the polishing cavity, opposite to the right side of the through groove, an opening groove extending front and back is formed in the edge of the top of the left side of the raised part, a conical rack extending in the front and back extending direction of the opening groove is fixedly arranged in the inner wall of the right sideof the opening groove, a first threaded rod extending upwards is arranged on the top face of the side, away from the opening groove, of the raised part and is in cooperative threaded connection with alifting bracket slidably and cooperatively connected with the inner wall of the right side of the polishing cavity in an abutting mode, first baffles are symmetrically arranged at the front side andthe rear side of the lifting bracket, guide rods are symmetrically arranged at the upper side and the lower side between the first baffles at the front side and the rear side, and polishing executingmechanisms extending to the left side are slidably and cooperatively connected to the two sets of guide rods. The machining and polishing device is simple in structure, improves the polishing efficiency and quality and is high in polishing safety.

The invention discloses a mini Bluetooth sound box with a lighting function. The mini Bluetooth sound box comprises a machine body, loudspeakers are arranged on the front surfaces at the two sides ofthe machine body, and dustproof covers are rotatably mounted at the positions, close to one sides of the loudspeakers, on the front surfaces at the two sides of the machine body correspondingly. A containing frame is fixedly mounted on the upper surface of one side of the machine body, a fixing block is arranged in the middle of the rear surface of the machine body, sliding grooves are formed on the upper surfaces at the two sides of the fixing block correspondingly, and threaded cylinders are vertically arranged in the two sliding grooves correspondingly. The invention relates to the technical field of mini Bluetooth sound boxes, and according to the mini Bluetooth sound box with the lighting function, the rear surfaces at one sides of the dustproof covers are fixedly connected with the iron sheets corresponding to the magnet sheets, and when the sound box is not used, the iron sheets on the dustproof covers can be attracted under the magnetic force of the magnet sheets, so that the positions of the loudspeakers are covered by the dustproof covers, and the dustproof effect is achieved. The mini Bluetooth sound boxis reasonable in structural design, and enables the practicability to be improved.

The invention provides an installing structure of an assembled bathroom bottom plate. The installing structure comprises a base layer, ceramic tiles, an outer frame, a leveling brick and a floor drain, wherein the ceramic tiles are laid on the base layer, and a running water slope is arranged on the ceramic tiles from the outside to the inside, the outer frame comprises an outer blocking strip, aconnecting strip and an inner blocking strip which are sequentially arranged from outside to inside, a positioning groove is formed between the outer blocking strip and the connecting strip, the height of the outer blocking strip is higher than the height of the connecting strip and the height of the inner blocking strip, the outer frame is in a square shape and is arranged around the ceramic tiles, the leveling brick is positioned between the ceramic tiles and the outer frame and are laid along the horizontal direction, and the floor drain is arranged in the middle position of the ceramic tiles and communicates with a sewer. Compared with the prior art, the installing structure has the advantages that the structure improvement is conducted on the outer frame of the bottom plate, a part ofwall bricks are installed on the outer frame, the wall bricks can be further conveniently installed while the function of an original running water slope is ensured, the installation is rapid, and the waterproofing performance of the bathroom is improved.

The invention discloses a fast new energy vehicle charging pile. The fast new energy vehicle charging pile comprises a machine column and finishing wheels, wherein the machine column is arranged in the charging pile, and the finishing wheels are arranged on the right side of the machine column, and are arranged in a up and down mode with equal distance. The bottom of the right side of the machinecolumn is provided with a base platform. A charging wire coiling device is arranged above the base platform. The charging wire coiling device comprises a sliding joint plate, a middle block; a wall plate and a coiling seat, wherein the sliding joint plate is arranged in a left and right extending mode; the middle block is fixedly arranged on the back side of the sliding joint plate; the wall plateis fixedly arranged on the back side of the middle block, and is arranged in an upward extending mode; and the coiling seat is arranged above the sliding joint plate. The bottom of the coiling seat is fixedly provided with a first rotating rod. The bottom of the first rotating rod penetrates through the sliding joint plate, and is connected with the sliding joint plate in a rotating and matched mode. An external spline shaft is fixedly arranged on the bottom of the first rotating rod, and is arranged in a downward extending mode. A screw-shape rod is fixedly arranged on the top of the coilingseat. A first conversion cavity is formed in the base platform. An inner spline shaft is connected with the top wall of the first conversion cavity in a rotating and matched mode, and is arranged inan upward and downward extending mode. The fast new energy vehicle charging pile has simple structure; the automatic control towards up and down mobile charging line coiling work is achieved; the uniformity of the coiling of the charging wire is improved; the fast disassembly towards a reel is achieved; and the coiling stability of the charging line is improved.

The present invention discloses an electronic dust remover with a conveniently-replaced filter element. The electronic dust remover comprises an electronic dust remover body, an air inlet pipe is fixedly installed on one side of the electronic dust remover body and communicates with the interior of the electronic dust remover body, and an installation hole is formed in the bottom of the electronic dust remover body; and a cover plate is fixedly mounted at the bottom of the electronic dust remover body through bolts, a mounting base is fixedly mounted at the top of the cover plate, and the top of the mounting base penetrates through the mounting hole and is provided with a mounting groove. The electronic dust remover is reasonable in design and good in practicability, dust and particle impurities adhering to the surface of the filter element can be swept down through rotation of the bristles, the filtering effect of the filter element can be improved, the filter element does not need to be frequently disassembled for cleaning or replacement, the disassembling frequency of the filter element is reduced, and the labor amount of workers is reduced; in addition, the filter element can be conveniently and rapidly disassembled and assembled, the filter element can be conveniently replaced, operation is convenient and fast, and time and labor are saved.

The present invention includes front board, wind guide grille on the front board of the air conditioner, wind inlet, filter capable of being moved up and down and between the wind guide grille and the wind inlet, handle below the filter, and elevated bottom board. There is a notch at the handle, a notch and a raised part in the contact position between the filter and the wind inlet. The present invention makes it easy to assembly and disassemble the filter and only shifting the handle of the filter can replace the filter.

The invention discloses a convenient power cable device. The convenient power cable device comprises a main body, and guide wheels which are arranged at the right side of the main body and correspond up and down; a convex part is arranged at the bottom of the right side surface of the main body; a cable reeling device is arranged on the convex part; the cable reeling device comprises a slide plate for extending left and right, a connecting part fixed on the back side of the slide plate, a back plate fixed on the back side of the connecting part and extending upwards, and a cable reeling base arranged above the slide plate; a first rotating shaft is fixedly arranged at the bottom of the cable reeling base; the bottom of the first rotating shaft penetrates through the slide plate and are in rotary matching connection with the slide plate; an outer spline shaft for downwards extending is fixedly arranged at the bottom of the first rotating shaft; a threaded rod is fixedly arranged at the top of the cable reeling base; a first conveying cavity is formed in the convex part; and an inner spline shaft for extending towards the upper and lower sides is in rotary matching connection to the interior of the top wall in the first conveying cavity. The convenient power cable device is simple in structure, can realize automatic control of up-down movement for realizing cable reeling, improves the uniformity of cable reeling, realizes quick assembly and disassembly of a cable reel, and improves the cable reeling stability.

The invention discloses a fabricated steel structure construction support for construction. The fabricated steel structure construction support comprises a supporting column, a cross beam, an L-shaped reinforcing plate, a concave clamping plate, a clamping assembly and a locking assembly; the cross beam is vertically and fixedly arranged on one side of the supporting column; and connecting inserting grooves are symmetrically formed in the L-shaped reinforcing plate. According to the fabricated steel structure construction support for construction, through the cooperation effect of the L-shaped reinforcing plate, the concave clamping plate, the clamping assembly and the locking assembly, the support formed by the column and the cross beam is well supported and stabilized, and the supporting strength of the support is enhanced; and on that basis, the fabricated steel structure construction support can be rapidly mounted and dismounted, operation is easy, the effect is remarkable, then the fabricated steel structure construction support can be recycled, resources are saved, and the construction economic benefits are increased.

The invention discloses intelligent textile winding equipment comprising a rack and winding assemblies mounted on the end face of the top of the rack and arranged in a bilateral-symmetry mode. Each winding assembly comprises a supporting column arranged on the left side, an adjusting column arranged on the right side and a bobbin arranged between the supporting column and the adjusting column. Guide cavities extending leftwards and rightwards are formed in the rack in a bilateral-symmetry mode. A through groove is formed in the top of each guide cavity in a communicating mode, wherein the through groove extends along the left and right sides of the top of the guide cavity. A guide groove is formed in the top of the right-side extending section of each through groove in a communicating mode. First sliding blocks are connected in the guide cavities in a slide fit mode. Convex blocks extending into the through grooves are arranged on the left sides of the tops of the first sliding blocks. First thread rods extending leftwards and rightwards are connected into the first sliding blocks in a threaded fit mode. A transmission cavity is formed in the position, on the left side of each guide cavity, in the rack. The structure of the intelligent textile winding equipment is simple, intelligent control can be achieved, safety is improved, the mounting speed is increased, the equipment investment is reduced, and the manufacturing cost and the maintenance cost are lowered.

The invention discloses a hotel air conditioner management control system. The hotel air conditioner management control system is characterized in that the hotel air conditioner management control system comprises an air conditioner management controller body and an installation box; a display screen is installed on the front side face of the air conditioner management controller body, keys are installed at the position, located below the display screen, of the front side face of the air conditioner management controller body, a wiring pipe is installed at the bottom end of the air conditionermanagement controller body, a protective cover is installed on the front side face of the air conditioner management controller body, and a transparent window is installed at the position, corresponding to the display screen, of the side face of the protective cover in a tilted mode; the installation box is fixed in a wall through bolts, a limiting groove corresponding to the air conditioner management controller body is formed in the front side face of the installation box, and a through hole corresponding to the wiring pipe in position is formed in the limiting groove; and the hotel air conditioner management control system further comprises fixing bases and pin shafts, the fixing bases are installed on the side face of the air conditioner management controller body and the side face ofthe installation box respectively, and a controller of the hotel air conditioner management control system is convenient to install, not prone to corrosion and long in service life.

The invention discloses intelligent winding equipment comprising a rack and winding assemblies mounted on the top end face of the rack and arranged in a bilateral-symmetry mode. Each winding assembly comprises a supporting column arranged on the left side, an adjusting column arranged on the right side and a winding cylinder arranged between the supporting column and the adjusting column; guiding cavities extending leftwards and rightwards are formed in the rack in a bilateral-symmetry mode; a through groove extending along the left and right sides of the top of each guiding cavity is formed in the top of the guiding cavity in a communicating mode; a guiding groove is formed in the top of the right side extending section of each through groove in a communicating mode; first sliding blocks are connected in the guiding cavities in a sliding fit mode; protruding blocks extending into the through grooves are arranged on the left sides of the tops of the first sliding blocks; first thread rods extending leftwards and rightwards are connected in the first sliding blocks in a thread fit mode; and a transmission cavity is formed in the position, on the left side of each guiding cavity, of the rack. The structure is simple, intelligent control can be achieved, safety is improved, the mounting speed is increased, equipment investment is reduced, and the manufacturing cost and the maintenance cost are reduced.

The invention relates to an easy-to-collect electronic component base with a stable structure, which comprises a bottom plate, a bearing plate and balls, wherein supporting rods are arranged around the top part of the bottom plate; the top ends of the supporting rods are provided with fixing blocks; the supporting rods and the bottom plate are fixedly connected; the supporting rods and the fixingblocks are movably connected; the bearing plate is connected onto the top ends of the fixing blocks; the inner side of the top part of the bearing plate is movably provided with clamping strips; and the clamping strips and the bearing plate are movably connected. The easy-to-collect electronic component base with the stable structure has the beneficial effects that as the bearing plate, the bottomplate and the supporting rods are arranged and the shape of the bearing plate is coincident with that of the bottom plate, when the bearing plate performs supporting operation on an electronic component, under indirect supporting effects of the bottom plate at the bottom, a two-layered plate body performs bearing operation on the electronic component, the bearing capacity of the device to the electronic component is enhanced, the structure stability of the device is enhanced, and supporting by the traditional single-layered plate body on the electronic component is replaced.

The invention discloses a meteorological detection unmanned aerial vehicle and relates to the technical field of meteorological detection. The meteorological detection unmanned aerial vehicle comprises a machine body. A mounting plate is fixedly mounted on the upper surface of the machine body. A battery chamber is fixedly mounted on the lower surface of the machine body. Four wings are equidistantly distributed on the outer side of the machine body in a circular array mode. A meteorological detector is fixedly mounted on the top of the mounting plate. The bottom of the meteorological detectoris fixedly provided with a fixed plate. Fixing mechanisms are fixedly mounted at the junction between the fixed plate and the mounting plate. The meteorological detection unmanned aerial vehicle is reasonable in structure, easy to operate and capable of realizing automatic opening and closing of a chamber door, facilitates installation of a battery, saves manpower, effectively improves the working efficiency and is high in practicality. Through the fixing mechanisms, the meteorological detector can be quickly installed and dismantled to facilitate maintenance and replacement of the meteorological detector. Moreover, when the meteorological detection unmanned aerial vehicle is not in use, the meteorological detector can be dismantled, and independent operation of the unmanned aerial vehicle is realized.

The invention discloses a controllable constant temperature gas water heater. The controllable constant temperature gas water heater comprises a substrate fixedly arranged in a wall in a kitchen and agas water heater body arranged on the substrate, wherein the left end face of the gas water heater body is vertically and symmetrically provided with an upper fixing block and a lower fixing block, apower supply head is arranged between the upper fixing block and the lower fixing block on the left end face of the gas water heater body, and the bottom end face of the upper fixing block and the top end face of the lower fixing block are symmetrically provided with an upper locking groove and a lower locking groove. The controllable constant temperature gas water heater has the advantages thatthe entire structure is simple, the fast installation and detachment of the gas water heater body can be achieved, power on is carried out when the gas water heater body is installed, power failure iscarried out when the gas water heater body is detached, the automatic control operation is achieved, the operation is convenient and fast, the whole device runs safely and stably, and locking of thegas water heater body is safe and firm.

A lifting unit for the baseplate of air conditioner is composed of front plate on the casing of air conditioner, the baseplate at lower end of front plate, the baseplate-lifting transmission mechanism with gear-rack structure, and the baseplate-lifting driver. The said baseplate is in contact with two side ends of said front plate and at the contact position there are relative slot and hump structure. Its advantage is easy replacing air filter.

The invention relates to the culvert construction technical field, and specifically relates to an all hydraulic template system for culvert pouring; the system comprises a top template and a bottom template capable of sliding on vertical slide rails on two sides of the culvert; the bottom template is provided with a bottom template inner framework and a bottom template outer framework used for pouring a bottom board and a first side wall, wherein the bottom template inner and outer frameworks are supported and pushed by a double-head oil cylinder; the top template is provided with a top template inner framework and a top template outer framework used for pouring a top board and a second side wall, wherein the top template inner and outer frameworks are supported and pushed by a double-head oil cylinder; the top template and bottom template are alternatively carried out so as to pour the culvert by layers. The modularized splicing structure is employed, and the system can be assembled according to the sizes of a frame box culvert, thus solving the problems that frame box culverts are various in sizes, improving working efficiency, and reducing cost.

The invention discloses a high-efficiency power cable device. The high-efficiency power cable device comprises a main body and guiding wheels which are arranged on the right side of the main body andcorrespondingly arranged up and down. A protrusion part is arranged at the bottom of the right side face of the main body. A reel cable device is arranged on the upper portion of the protrusion part and comprises a sliding plate extending left and right, a connecting part fixed to the rear side of the sliding plate, a back plate which is fixed to the rear side of the connecting part and extends upwards, and a reel cable base arranged on the upper portion of the sliding plate. A first rotary shaft is fixedly arranged at the bottom of the reel cable base. The bottom of the first rotary shaft penetrates through the sliding plate and is connected with the sliding plate in a rotating fit mode. An outer spline shaft extending downwards is fixedly arranged at the bottom of the first rotary shaft.A threaded rod is fixedly arranged at the top of the reel cable base. A first conveying cavity is formed in the protrusion part. An inner spline shaft extending up and down is connected into the inner top wall of the first conveying cavity in a rotating fit mode. The high-efficiency power cable device is simple in structure, a reel cable is controlled automatically and moved up and down to operate, the reel cable uniformity is improved, a cable reel is rapidly dismounted and mounted, and the reel cable stability is improved.

The invention discloses a novel electric cable device. The novel electric cable device comprises a main body, and guide wheels arranged on the right side of the main body up and down correspondingly;a convex part is arranged at the bottom of the right side surface of the main body; a reel cable device is arranged above the convex part; the reel cable device comprises a sliding plate extending left and right, a connecting part fixed on the back side of the sliding plate, a back plate fixed on the back side of the connecting part and upwards extending, and a reel cable base arranged above the sliding plate; a first rotating shaft is fixedly arranged at the bottom of the reel cable base; the bottom of the first rotating shaft penetrates through the sliding plate, and is in rotary fit connection with the sliding plate; an outer spline shaft downwards extending is fixedly arranged at the bottom of the first rotating shaft; a thread rod is fixedly arranged at the top of the reel cable base;a first conveying cavity is formed in the convex part; and inner spline shafts extending on the upper and lower sides are in rotary fit connection in the inner top wall of the first conveying cavity.The novel electric cable device is simple in structure, realizes automatic control of up-down movement work of reel cables, improves the uniformity of the reel cables, realizes quick disassembly andinstallation of cable winding shafts, and improves the stability of the reel cables.

The invention discloses a multi-lug type butterfly valve flange expansion tool, and belongs to the technical field of maintenance of pipeline valves of nuclear power plants. The tool comprises a firstfixing block and a second fixing block which are clamped on two flanges of a butterfly valve respectively, a screw rod and one or two expansion nuts; an unthreaded hole is formed in the first fixingblock, and a screw hole is formed in the second fixing block; the screw rod penetrates through the unthreaded hole of the first fixing block, then penetrates through the one or two expansion nuts, then penetrates through the screw hole of the second fixing block, so that the first fixing block and the second fixing block are connected together; and the head end of the screw rod is arranged on oneside of the first fixing block. According to the tool, disassembly and installation work of the multi-lug butterfly valve can be rapidly completed. The tool is simple in structure, small in weight, convenient to transport, simple to mount and dismount, reliable in positioning and convenient to operate. Meanwhile, the risk that the valve is damaged due to unstable clamping of a pipeline is avoided,and the on-site working efficiency is improved.

The invention discloses a combined stainless steel multi-ring elastic thread anorectal ligation device, and relates to the technical field of medical instruments. The ligation device comprises a machine body; threaded holes are formed in the two sides of the machine body; studs are placed on the inner sides of the threaded holes; one sides of the studs are in threaded connection with sliding blocks; the inner sides of the sliding blocks are connected with sliding rods; a limiting plate is fixedly connected to one side of the tail end of each sliding rod; a handle is welded to the bottom end ofthe machine body; and a negative pressure connector is formed in the bottom end of the handle. According to the invention, due to the fact that a movable plate is installed on the outer side of the negative pressure connector, a user can conveniently drive the movable plate through push rods to push a negative pressure connecting tube connected to the negative pressure connector in a sleeving mode, then the user can conveniently and rapidly disassemble the negative pressure connecting tube, and the labor force loss of the user due to inconvenience in disassembly work can be effectively avoided; and in addition, due to the existence of sponge mats, the extrusion force of the push rods on the palms of the user can be greatly reduced.

The invention discloses a processing and grinding device for a rectangular steel bar. The processing and grinding device comprises a grinding rack which is composed of a base and a supporting framework, wherein a grinding cavity is arranged in the supporting framework; one side, close to the base, of the left side end surface of the supporting framework is provided a through slot; a protruding part is fixedly arranged at the position, opposite to the right side of the through slot, on the inner wall of the right side of the grinding cavity; the top edge of the left side of the protruding partis equipped with an opening slot which is formed in the front-rear extending mode; a tapered tooth-shaped bar which extends in the front-rear extending direction of the opening slot is fixedly arranged on the inner wall of the right side of the opening slot; the top end surface of one side, away from the opening slot, of the protruding part is equipped with a first threaded rod which is arranged in an upward extending mode; the first threaded rod is connected with a lifting bracket in a threaded fit mode, wherein the right side end surface of the lifting bracket is connected with the inner wall of the right side of the grinding cavity in a resisting and sliding-fit mode; first baffle plates are symmetrically arranged at front and rear sides of the lifting bracket; guide rods are arranged between the first baffle plates at front and rear sides in an up-and-down symmetrical manner, and a grinding performing mechanism which extends towards the left side is connected on the two groups of the guide rods in the sliding-fit mode. The processing and grinding device is simple in structure, improves grinding efficiency and quality, and is high in grinding safety.

The invention discloses a safety construction platform for a machine-room-less elevator shaft. The safety construction platform for the machine-room-less elevator shaft comprises a beam structure, a plate structure and a support. The beam structure is obliquely erected in the elevator shaft, the bottom end of the beam structure is fixedly connected with the elevator shaft, and the top end of the beam structure abuts against the shaft wall of the elevator shaft; the plate structure is movably connected with the beam structure, and the plate structure can rotate around the joint of the plate structure and the beam structure; the plate structure is overturned upwards, and the support is used for supporting the plate structure, so that the plate structure forms a construction platform for people to stand on in the elevator shaft; and the support can also be detached, and the plate structure is put down. Compared with a traditional scaffold building platform, according to the safety construction platform for the machine-room-less elevator shaft provided by the invention, a large amount of manpower, material resources and time are saved; and the building operation can be directly carried out on the top layer of the elevator shaft, so that the efficiency is greatly improved. According to the safety construction platform provided by the invention, the plate structure is movably connected with the beam structure, the plate structure is overturned upwards, the bottom of the plate structure is supported by the support, and then the construction platform for people to stand on can be formed in an elevator shaft, so that construction operation and building are extremely rapid and convenient.