33results about How to "Easy to splice" patented technology

The invention discloses a method for forming a circuit board without location holes. A circuit board to be processed with two technological edge is included, and each technological edge is provided with two location holes. The method comprises the following concrete steps: S1, carrying out a primary milling formation to prepare semi-finished product circuit boards A; S2, carrying out an electric test; S3, successively aligning the semi-finished product circuit boards A and overlapping the semi-finished product circuit boards A on the bench surface of a formation machine, one technological edge of the multiple semi-finished product circuit boards A is fixed by use of a positioning pin, and boring is performed at board edge positions of the multiple semi-finished product circuit boards A, and the semi-finished product circuit boards A are fixed by use of positioning pins; S4, carrying out secondary milling to prepare semi-finished product circuit boards B; S5, boring is performed at positions, close to board edges, of the semi-finished product circuit boards B after the technological edges are milled, and the semi-finished product circuit boards B are fixed by use of the positioning pins; S6, carrying out third-time milling to prepare a finished product circuit board; and S7, cleaning, and performing drying processing. According to the invention, milling formation is used for three times, a circuit board formation method is optimized, the board edge of the circuit board is enabled to be flat and smooth, splicing application is facilitated, the quality of the circuit board is improved, the production time is reduced, and the production efficiency is improved.

The invention discloses a rotary leveling fabricated wall surface mounting structure. The rotary leveling fabricated wall surface mounting structure comprises side columns, upper fabricated plates, sliding grooves, sliding blocks, connecting rods, clamping teeth and pressing plates A. Connecting grooves are formed in the lower surfaces of the pressing plates A. Connecting blocks are movably connected into the connecting grooves, and wallboards are fixedly connected to the lower surfaces of the connecting blocks. Pressing plates B are movably connected to the lower surfaces of the wallboards, middle plates are movably connected to one sides of the wallboards, and top pressing covers are movably connected to the upper surfaces of the pressing plates A. The rotary leveling fabricated wall surface mounting structure has the main advantages that the top pressing covers are placed at the tops of the pressing plates A, then the top pressing covers are mounted on one sides of the upper fabricated plates through mounting blocks, and buckles on the other sides of the pressing plates C, the pressing plates B and the pressing plates A are fixed through the middle plates, so that the wallboardsare spliced and fixed, and the situation that the waterproof effect and the sound insulation effect of the wall become poor due to looseness of the wall is avoided.

The invention relates to the field of wood floors and in particular relates to a simple-to-splice waterproof wood floor and a manufacturing technology. The waterproof wood floor provided by the invention comprises a floor body and an injection molding framework, wherein the floor body comprises a composite board, a veneer arranged on the upper surface of the composite sheet material and a veneer arranged on the lower surface of the composite sheet material; male buckles and female buckles are distributed at the periphery of the injection molding framework. According to the simple-to-splice waterproof wood floor provided by the invention, the veneers are stuck on the upper and lower surfaces of the composite sheet material respectively through a cold pressing technology or a hot pressing technology; then the periphery of the composite sheet material is treated by an injection molding technology and an injection molding material is molded at the periphery of the composite sheet materialin a once injection molding manner to form a plastic framework with a lock catch part. The waterproof wood floor provided by the invention has the advantages of good waterproof and moisture-proof performance, wear resistance, convenience and rapidness in splicing and less formaldehyde release.

The invention provides a steel bar truss floor deck for a prefabricated building. The steel bar truss floor deck for the prefabricated building comprises a first base frame. One side of the first baseframe is movably connected with one side of the second base frame through a connecting pin. One side of the first base frame and one side of the second base frame are both fixedly provided with supporting frames. One side of each supporting frame is fixedly provided with a fixing mechanism. The tops of the first base frame and the second base frame are fixedly provided with several frame mechanisms. Electro-hydraulic rods are fixedly installed between rod arms of the two support frames. By means of arranged motors, two cross plates are conveniently driven to rotate, and then the angles of theL-shaped plates on fixing rods are adjusted, and each support seat at one end of the corresponding L-shaped plate is made to fix and support the steel bar truss floor deck. In this way, the steel bartruss floor deck for the prefabricated building has an excellent supporting effect and large load bearing capacity, it is not needed to adopt a steel beam of a large section height to support the steel bar truss, so that the clear height of a floor is increased, and the utilization rate of a building space is improved.

The invention discloses a chemical reagent storage method for laboratory safety management. The chemical reagent storage method comprises the following steps of S1, manually classifying and placing chemical reagents into a classification device; S2, putting conditional chemical reagents needing to be refrigerated and stored under normal temperature conditions into a refrigeration cavity and a normal temperature cavity in a storage cabinet through the classification device, wherein the classification device comprises classifying assemblies and connecting assemblies, the multiple classifying assemblies are connected with one another through connecting assemblies, each of the classifying assembly comprises a storage box with the front face and the top not closed, partition plates, a threadedrod a and a nut, the storage box with the unsealed front face and the unsealed top is divided into a plurality of storage cavities through a plurality of partition plates, the top ends of the inner walls of the two sides of the storage box with the unsealed front face and the unsealed top are connected through the threaded rod a, through holes are formed in the partition plates, and the partitionplates are connected to the threaded rod a in a sleeving mode through the through holes. According to the method, the classified storage is facilitated, meanwhile, the space utilization rate can be fully increased; the structure is detachable, and maintenance is convenient.

The invention discloses a waterproof heat-insulation composite board for a building. The waterproof heat-insulation composite board comprises a square fixing frame. A decoration panel fixedly adheresto the front side of the square fixing frame in a sealing mode with an adhesive. A mounting plate fixedly adheres to the back side of the square fixing frame in a sealing mode with the adhesive. A first waterproof board, a heat-insulation board and a second waterproof board are sequentially arranged in the square fixing frame from front to back. The invention further discloses a production methodof the waterproof heat-insulation composite board for the building. The production method comprises four steps. The waterproof heat-insulation composite board is simple in structure and has good waterproof and heat-insulation properties; the modular design is adopted so that the waterproof heat-insulation board can be prefabricated, the construction period can be effectively shortened, and the construction efficiency is high; and meanwhile, the construction difficulty is low, construction is convenient, and the application range is wide. The production method of the waterproof heat-insulationcomposite board for the building is simple in process step, scientific, reasonable, and easy to implement.

The invention relates to the technical field of liquid crystal display screens, and concretely relates to a cholesteric phase color liquid crystal display screen with an ultra-thin glass structure. The display screen comprises a main body mechanism, and a supporting mechanism is connected to the main body mechanism in a matched mode; an adjusting mechanism is rotationally arranged in the supporting mechanism; an abutting mechanism slides in the main body mechanism; and a fixing mechanism is mounted on the main body mechanism in a matched manner. When an operator needs to splice the liquid crystal display screens together, the fixing mechanism can be pressed by hands, so that the two liquid crystal display screens can be conveniently spliced together, the liquid crystal display screens can be conveniently assembled and disassembled while being conveniently spliced and used, and the use efficiency of the liquid crystal display screens can be improved to a certain extent.

The invention discloses a commercial concrete anti-solidification mechanical stirring device which comprises a supporting device, a stirring rod and a power device; the supporting device comprises a retaining ring, the retaining ring is in a circular ring shape, four first ring seats are evenly distributed on the inner circumference of the retaining ring, vertical supporting rods are installed inthe first ring seats, and inclined supporting rods are arranged on the vertical supporting rods; and a supporting ring is installed on the inclined supporting rods, an annular groove is formed in thesupporting ring, a water conveying pipe is installed in the annular groove, eight atomization nozzles are evenly distributed on the lower portion of the water conveying pipe, and a pipe connector is installed on one side of the supporting ring. According to the commercial concrete anti-solidification mechanical stirring device, splicing use of the stirring device is facilitated through inserting-pulling connection of all the components, solidification of concrete is prevented through continuous stirring and arrangement of water liquid, outflow of the concrete is prevented through arrangement of the retaining ring, and the stirring uniformity is guaranteed.

The invention provides a storage box for student information management and storage. The box comprises a lower shell and a supporting box; guide grooves are formed in the two sides of the inner wall of the lower shell. A movable groove is formed in the outer side of the tail end of a movable block; the supporting box is fixed to the outer wall of a movable cylinder, the outer side of the a rod isconnected with a linkage cylinder, a vertical groove is formed in the upper portion of the lower shell, a positioning hole is formed in the outer wall of a vertical rod, a supporting block is fixed tothe lower end of the lower shell, and a mounting groove is formed in the outer wall of the supporting block. According to the storage box, the structure with an adjusting function is designed, so theproblem that folders of different specifications are inconvenient to position through a traditional device is solved; the structure with the clamping function is designed, so the problem that foldersare inconvenient to process in batches through the traditional device is solved; meanwhile, the structure with the splicing function is designed, so the problem that storage boxes are inconvenient tostack through the traditional device is solved.

The invention discloses a cylinder cover blocking mold structure. The cylinder cover blocking die structure comprises fixing plates, wherein a first fixing frame is fixedly connected to the tops of the fixing plates, a second fixing frame is fixedly connected to the bottoms of the fixing plates, and bottom plates are fixedly connected to the top of the inner side of the first fixing frame and thebottom of the inner side of the second fixing frame; and a mounting pad is fixedly connected to the outer side of each bottom plate. According to the cylinder cover blocking die structure, splicing frames are convenient to splice and use through splicing mechanisms; meanwhile, movable die bases are driven by an up-down linkage mechanism to move up and down for bidirectional die assembly, so that the problems that an existing cylinder cover blocking die structure is inconvenient to splice and install and not suitable for dies of different specifications, the existing die structure is low in dieassembly efficiency and high in cost performance, two-way linkage and assembly of two dies can not be carried out simultaneously, and the transmission force is wasted are solved. The cylinder cover blocking die structure has the advantages of being convenient to splice and capable of achieving two-way linkage die assembly, and improving the die frame splicing efficiency and the die assembly efficiency.

The invention discloses assembling equipment for a liquid crystal screen splicing connecting piece. The assembling equipment comprises a rack, a downward pressing mechanism, a downward pressing support, a necking sleeve placing mechanism, detection mechanisms, a position measuring mechanism and a storage base. The rack is composed of an upper rack body and a lower rack body, and the upper rack body is arranged on the lower rack body. The downward pressing support is arranged on the upper rack body, the downward pressing mechanism is arranged at the top of the front face of the downward pressing support, the necking sleeve placing mechanism is arranged on the lower portion of the upper rack body, and the detection mechanisms are arranged on the left side and the right side of the lower portion of the downward pressing support. The position measuring mechanism is arranged on the right side of the upper portion of the downward pressing support, and extends inward to the working end of the lower portion of the downward pressing mechanism, and the storage base is arranged on the lower rack body. The assembling quality and effect are stable, the assembling efficiency is high, screen splicing and use is facilitated in the later period, labor is saved, and a good market application value is achieved.

The invention discloses a filtering assembly for a waste gas treatment fan. The filtering assembly comprises a mounting ring, wherein clamping seats are uniformly mounted at the edge of one side of the mounting ring, a connecting ring is arranged on one side of the mounting ring, clamping bolts are uniformly mounted on the outer side wall of the connecting ring, the clamping bolts are matched withthe corresponding clamping seats, locking holes are evenly formed in the side, close to the connecting ring, of the mounting ring, locking assemblies are evenly installed on the outer side of the mounting ring, and a filtering ring is arranged on the inner side wall of the end, away from the mounting ring, of the connecting ring in a threaded connection mode. According to the invention, the clamping seat, the connecting ring, the clamping bolt, the locking hole and the locking assembly are mounted, and the movable buckle and the locking bolt are used for locking the structure, so that the whole filtering assembly is convenient to disassemble, assemble, clean or overhaul, and the problems of inconvenience in disassembly and assembly, easiness in aging, influence on the service life of equipment and reduction of the operation difficulty and consumed time in a traditional bolt type mounting mode are avoided.

The invention discloses a splicing type artificial insemination device, and particularly relates to the field of artificial insemination, the splicing type artificial insemination device comprises a storage part, a transfer part and an injection part, the storage part comprises a storage box and a supporting plate, the supporting plate is movably arranged at the bottom of the storage box, the injection part comprises a fixing frame and a supporting plate, and the supporting plate is movably arranged at the bottom of the fixing frame; the transferring part comprises a transplanting box, the fixing frame is movably arranged at one end of the storage box, and the transplanting box is detachably arranged at the top of the storage box through mucilage glue; a storage cavity is formed in the storage box, and a first connecting plate is fixedly connected to the bottom of the storage box; an injection bag is fixedly connected into the fixing frame, a connecting column is fixedly connected to the end, close to the storage box, of the fixing frame, and a second connecting plate is fixedly connected to the bottom of the fixing frame; and the top of the transplanting box is movably connected with a needle cylinder. The novel environment-friendly packaging box is convenient to splice and use, can be detached to be cleaned after being used, and is relatively environment-friendly to use.

The invention relates to the technical field of advanced manufacturing and automation, in particular to an auxiliary device for an advanced manufacturing and automation product production line. The device comprises a bottom plate, a telescopic rod and a fixed rod which are vertically arranged are fixedly arranged at the edge of one side of the top end of the bottom plate, top ends of the telescopic rod and the fixed rod are rotationally connected with an adjusting assembly, the adjusting assembly comprises a fixing strip, the fixing strip is of a cavity structure, a motor with an output shaft pointing to the length direction of the fixing strip is fixedly installed on one side of the interior of the fixing strip, a threaded rod rotationally connected with the inner wall of the other side of the fixing strip is concentrically connected to one end of the output shaft of the motor, the outer side of the threaded rod is provided with a threaded sleeve in a threaded and sleeving mode, and one side of the threaded sleeve is rotationally connected with a deflection rod. Products on the production line can be conveniently guided and adjusted, and adaptive adjustment can be carried out according to requirements; and therefore, the device can be further used for the production line, and the smooth proceeding of the guiding and conveying process is ensured.

The invention discloses a neurology department nerve acupuncture therapy rehabilitation treatment device. The rehabilitation treatment device comprises a box body, a clamping seat and a box cover, wherein a partition plate is installed in the middle of the interior of the box body; an ultraviolet sterilization lamp is fixed to the inner bottom face of the left side of the box body; a filiform needle is arranged above the ultraviolet sterilization lamp, and an anti-skid needle handle is installed at the top end of the filiform needle; a fixing plate is arranged on the left side of the upper endof the partition plate; a base is arranged on the right side of the upper end of the partition plate, a baffle is arranged above the base; a cylinder is connected below the baffle; a circular plate is installed in the cylinder; a connecting rod is connected above the circular plate, and a top plate is fixed to the top end of the connecting rod; the upper surface of the top plate is wrapped with apressure reduction pad; the clamping seat is connected to the lower portion of the circular plate; and the box cover is connected to the upper portion of the box body, and a circular pipe is installed on the upper surface of the box cover. The surface of the filiform needle can be sterilized and disinfected conveniently, and pollution to the filiform needle in the storage process can be reduced.

The invention discloses a building curtain wall installation structure and a building curtain wall installation method.The building curtain wall installation structure comprises a wall body, an installation frame is fixedly installed on the surface of one side of the wall body, threaded cylinders are fixedly welded to the two ends of the surface of one side of the installation frame, and threaded rods are installed on the side faces of the threaded cylinders in a threaded mode; the surface of one end of the threaded rod is rotationally sleeved with a connecting cylinder, a sleeving hole is formed in the surface of one end of the connecting cylinder, the surface of one end of the threaded rod is rotationally sleeved with the side face of the sleeving hole, the surface of the other end of the connecting cylinder is fixedly connected with a curtain wall, and the surface of the curtain wall is connected to one side of a wall in a combined mode. The surface of one end of the threaded rod is fixedly connected with a rotating disc, a chain wheel is arranged on the surface of the rotating disc, the surface of the chain wheel is meshed with a long-strip chain, and the surface of the long-strip chain is rotationally connected to the surface of one end of the threaded rod, so that the use convenience and stability can be greatly improved, and the safety of alignment installation is guaranteed.

The invention discloses an LED lamp that can be spliced ​​and used in multiple groups. The sides are fixedly connected with a fixed plate one, the left side of the fixed plate one is provided with a fixed plate two, the right side of the fixed plate two is provided with a fixed groove one, and the bottom of the inner wall of the fixed groove one is fixedly connected with a fixed rod . In the present invention, by holding the second body of the LED lamp and pushing it to the right, the clamping block is inserted into the slot, and at the same time, the limit mechanism fixes the second body of the LED lamp, thereby achieving high installation and disassembly efficiency and facilitating the installation and removal of multiple sets of strips. The advantages of splicing LED lights solve the problem that the existing strip LED lights are fixed by bolts and other fasteners when splicing, the installation and disassembly efficiency is low, and it is not convenient to use multiple groups of splicing. The LED lights used in multi-group splicing are highly practical, easy to operate, and convenient for people to use.

The invention relates to a filter shell convenient to disassemble and assemble. The filter shell comprises a shell body and an edge opening; side interfaces are formed in the bottoms of the left end and the right end of the shell body; a side loading mechanism is mounted at the inner side end of the side interface; the edge opening is formed in the side end of the shell, an edge base is mounted atthe end of the edge opening, cooling fins are fixed to the outer wall of the edge base, a penetrating column is arranged in the middle of the edge base in a penetrating mode, screw joint butt joint mechanisms are arranged at the left end and the right end of the top of the shell body, an inner connector is arranged in the middle of the shell body in a penetrating mode, and a carrying piece is arranged at the end of the inner connector. The filter shell has the beneficial effects that according to the filter shell convenient to disassemble and assemble, through rotation of a penetrating threaded rod, an inner carrying base can be adjusted in a threaded rotation mode, the use height of the inner carrying base can be changed, and the inner carrying base can be better controlled and used conveniently; meanwhile, through adjustment of the inner carrying base, an outer disc can be synchronously driven to move, the positioning position of the outer disc can be changed conveniently, meanwhile, an assembling notch can be matched with the outer disc for movable adjustment, and adjustment and control can be conducted more conveniently and faster.

The invention discloses a labyrinth device for experimental study on ethology of medium-sized animals such as the leporid, comprising a labyrinth enclosure consisting of a plurality of labyrinth splicing plates; an initial box capable of being removed is arranged in the middle of the labyrinth enclosure while door openings for in and out of animals are formed at bottoms of the labyrinth splicing plates respectively; changeable references are arranged above the door openings on the inner sides of the labyrinth splicing plates respectively; a real hide box is movably connected to the outer sideof one of the labyrinth splicing plates and false hide boxes are respectively movably connected to the outer sides of the rest labyrinth splicing plates; relative positions of the real hide box, the false hide boxes and the labyrinth splicing plates can be changed and adjusted optionally. The labyrinth device is quick and convenient to be mounted and combined and is low in cost to use, and bringsgreat convenience to experimental study on learning capacity, memory and spatial identification capacity of medium-sized animals.

The invention discloses an outdoor seat convenient to assemble, disassemble and splice, which comprises a sitting and lying board, first slotted holes are formed in the front sides and the rear sidesof the outer surfaces of the two ends of the sitting and lying board. A placing groove hole is formed in the side, facing the interior of the sitting and lying plate face, of the first groove hole inthe horizontal direction. An inserting groove hole is formed in the side, facing the interior of the sitting and lying plate face, of the first groove hole in the vertical direction. Supporting legs are inserted into the inserting groove hole, and the lower ends of the supporting legs extend to the position below the lower surface of the sitting and lying plate face. In the outdoor use process, splicing use and disassembly and storage after use are facilitated, and then outdoor use is facilitated.

The invention discloses an operation method of a detachable mold trolley device for autoclaved aerated concrete block side plates, and solves the problems that after an existing mold trolley for autoclaved aerated concrete blocks is formed, autoclaved aerated concrete blocks are difficult to take out, meanwhile, the autoclaved aerated concrete blocks are difficult to transport to a cutting line, and the production of the autoclaved aerated concrete blocks is not facilitated. The device comprises a bottom trolley, a lower walking line, rollers, side walking lines and connecting blocks; the lower walking line is arranged in the middle of the bottom end of the bottom trolley; the rollers are installed at the positions, close to the two ends, of the bottom of the bottom trolley; two side protection frames are symmetrically welded to the bottom of one side of the bottom trolley; side bottom trolleys are arranged on the inner sides of the side protection frames; transition blocks are arranged on one sides of the side bottom trolleys; side baffles are arranged at one ends of the transition blocks; and a plurality of limiting blocks are arranged on the other sides of the side bottom trolleys. According to the device, the structure is novel, the concept is ingenious, the mold trolley is convenient to splice and use, separation after forming is convenient, cutting operation of formed cuboid autoclaved aerated concrete blocks is convenient, and production is facilitated.

The invention discloses an anti-blocking suctioning apparatus for cleaning before oral operation. The anti-blocking suctioning apparatus comprises a cleaning-head cap, a cleaning head, an anti-blocking suctioning pipe, cleaning brush hair, extension pipes and a cleaning and water-spraying pipe, wherein the cleaning-head cap is laminated at the end part of the cleaning head; the cleaning head is ina round-pipe-shaped structure and is internally provided with an anti-blocking suctioning inner pipe and a water-spraying inner pipe. The anti-blocking suctioning apparatus disclosed by the inventionhas the beneficial effects that the cleaning head is provided with the anti-blocking suctioning pipe and the cleaning and water-spraying pipe, and the anti-blocking suctioning pipe can suction out dirt cleaned by the cleaning and water-spraying pipe, so that the blocking phenomenon is prevented and the oral cavity is easily cleaned; in the apparatus, the anti-blocking suctioning pipe, the cleaning and water-spraying pipe and the cleaning brush hair are respectively arranged on the cleaning head, so that the purposes of cleaning, cleaning with water and removing cleaning water meanwhile are achieved, the use is convenient and the oral cavity is easily cleaned; the plurality of extension pipes can be connected, convenience is brought for splicing use according to the actual needs; the cleaning head is reasonable in inner-structure design and is convenient and practical, so that the anti-blocking suctioning apparatus is suitable for being promoted.

The invention provides a floor tile dry-type splicing structure and a splicing method thereof; the structure comprises a pavement surface that has a support; the floor tiles are paved on the support;a caulking strip is arranged between adjacent floor tiles; the support comprises a mounting surface and mounting grooves; the plurality of mounting grooves are arranged on the support; the support sets the mounting surface on the periphery of the mounting grooves; the mounting surface has card slots; the floor tile comprises a connecting plate and bumps; the backside of the floor tile is providedwith the bump that is clamped in the mounting groove; the connecting plate is arranged on the periphery of the floor tile and abuts against the mounting surface; the backside of the connecting plate is provided with a block that is matched with the card slot. The invention also provides the splicing method of the floor tiles; the floor tiles are directly spliced on the support via a dry method without using a cement slurry and a bonding agent; the construction process is simple, has no requirement on construction conditions, is easy in splicing, firm in structure, high in construction efficiency, cannot have bulking, cracking and warpping phenomenon, and the spliced surface is flat and consistent in height.

The invention discloses a labyrinth device suitable for experimental research on the behavior of rabbit animals, which comprises a maze enclosure composed of several maze spliced ​​enclosures, a removable starting box placed in the middle of the labyrinth enclosure, the The bottom of the maze splicing wall is provided with a door opening for animals to pass through, and a replaceable reference object is provided above the door opening inside the maze splicing wall, and a real hiding box is movably connected to the outside of one of the maze splicing walls. False hiding boxes are movably connected to the outer sides of the remaining maze splicing panels, and the mutual positions of the real hiding boxes, false hiding boxes and the labyrinth splicing panels can be changed and adjusted arbitrarily. The combination of the invention is fast and convenient to install, has low use cost, and is very convenient for carrying out experimental research on the learning ability, memory ability and space recognition ability of medium-sized animals.

The invention relates to the technical field of advanced manufacturing and automation, in particular to an auxiliary device for an advanced manufacturing and automation product production line, comprising a base plate, a vertically arranged telescopic rod and a fixed rod are fixed at one edge of the top end of the base plate, and The top end of the telescopic rod and the fixed rod is rotatably connected with an adjustment component, the adjustment component includes a fixed strip, the fixed strip has a cavity structure, and the inner side of the fixed strip is fixedly installed with a motor whose output shaft points to its length direction. One end is concentrically connected with a threaded rod which is rotatably connected with the inner wall of the other side of the fixing strip, the outer threaded sleeve of the threaded rod is provided with a threaded sleeve, and one side of the threaded sleeve is rotatably connected with a deflection rod. The invention is convenient for guiding and adjusting the products on the production line, and can be adjusted adaptively according to requirements; it can also be used by splicing, so as to be further used for the production line and ensure the smooth progress of the guiding process.

The invention relates to the technical field of brooms, and discloses an anti-hair-winding broom which comprises a first broom body, a first brush is mounted at the bottom of the first broom body, a second mounting pipe is mounted in the middle of the top of the first broom body, a handle is mounted on the second mounting pipe, and the handle is sleeved with a second threaded cylinder. A first threaded cylinder is mounted on one side of the second threaded cylinder; and a second connecting rod is installed on the first threaded cylinder, a damping rotating shaft is installed at one end of thesecond connecting rod, a first connecting rod is installed on the damping rotating shaft, an installing base is installed at one end of the first connecting rod, and grooves are formed in the two endsof the installing base correspondingly. According to the invention, through the installing base arranged on the handle, the service life of the brush is prolonged, meanwhile, the brush cannot be polluted by hair, cleanliness of the brush is guaranteed, and the broom can be spliced and used conveniently through the arranged second broom body.

The invention discloses a novel CT auxiliary marking and positioning sticker. The sticker comprises a positioning sticker body, a splicing strip and an inserting strip, wherein the splicing strip is arranged at one end of the positioning sticker body; the inserting strip corresponding to the splicing strip is arranged at the other end of the positioning sticker body; a splicing inserting groove is formed in the splicing strip; pasting pieces are arranged on the upper side groove face and the lower side groove face of the splicing inserting groove; a layer of silicone oil paper is arranged on each sticking piece; the positioning sticker body is composed of an outer paper layer, a middle aluminum wire grid and an inner glue sticking layer which are sequentially connected; the middle aluminum wire grid comprises four transverse aluminum wires and five longitudinal aluminum wires which are vertically fixed. Grid lines corresponding to the middle aluminum wire grids are arranged on the outer paper layer, and latticed cotton yarns corresponding to the middle aluminum wire grids are arranged on the face, back on to the middle aluminum wire grids, of the inner adhesive layer. The sticker is provided with a splicing structure, splicing and using are convenient, and the sticker can better adapt to preoperative range definition of different surgeries.