89results about How to "Flexible assembly and disassembly" patented technology

The invention discloses a composite cored slab house and a building method thereof, belonging to the field of woolen frame structure building construction. The house is formed by combining basic rooms, each of which is composed of a structural support system and a plate body, wherein, for each basic room structural support system,, a corner post, a central pillar, a cross beam and a purlin form a two-layer woolen frame system; a gable vertical frame is transversely embedded with a composite cored slab; a front vertical frame and a rear vertical frame along walls are vertically embedded with the composite cored slab, a door and a window; a grillage along the horizontal direction is respectively laid with the composite cored slab to form a floor system; and a grillage at the upper part is laid with the composite cored slab to form a roofing system. All the components of the invention can realize normalization, standardization and industrialization; the quality can be effectively ensured, and the cost can be reduced; various types of low-rise buildings can be designed and built according to the building requirements of the owners. The composite cored slab house is light in installation, rapid in construction speed, short in period as well as simple and convenient in assembly and disassembly, can be recycled for a plurality of times, is separated flexibly, and is easy to change for recycling.

The invention discloses a high-strength foam cement insulation board. The board is prepared from raw materials including cement, coal ash, water, emulsion, calcium stearate, fiber hair, a foam stabilizer, a water repellent, calcium chloride, aluminium sulfate and a foaming agent which are added in a ratio. The preparation method comprises steps of: first-level stirring: mixing the cement, the coal ash, the water, the emulsion, and calcium stearate according to a ratio, and stirring uniformly; second-level stirring: sequentially adding the fiber hair, the foam stabilizer, the water repellent, the calcium stearate and hydrogen peroxide into the size according to the ratio after first-level stirring, and stirring uniformly; carrying out injection molding, foaming and initial curing; demolding; cutting; and maintaining a finished product. The insulation board is short in production period, high in production efficiency, high in performance index and low in cost.

The invention relates to a building construction all-steel mold plate, which belongs to the field of building construction. The building construction all-steel mold plate comprises two major parts, namely a mold plate and auxiliary accessories, wherein the mold plate comprises a flat plate, an external corner, an internal corner, a special-shaped plate and a stunt head; the auxiliary accessories comprise a double-back arris, a double-back arris hook, an oblique back arris, an oblique back arris hook, a wall-penetrating bolt, a hook head bolt, a fastening bolt, a fastener, an operation platform frame, an oblique support, a mold plate hanging hook and a door hole mold right angle; and the building construction all-steel mold plate is characterized in that the flat plate is formed by weldinga planar plate with a framework, the framework is formed by assembly welding of rectangular steel pipes, the planar plate is surrounded by the framework, a plurality of horizontal and vertical reinforcing ribs are arranged on one side of the planar plate, the reinforcing ribs are the rectangular steel pipes, and connecting holes are arranged on the framework and the reinforcing ribs. Joint seams are tight, the assembly and the disassembly are flexible, the transportation is convenient, the whole hoisting can be realized by a tower hoist, and bulk assembly and bulk disassembly can also be performed. The torsional deformation due to loading can be avoided, when the mold plates are combined for use, the concrete leakage phenomenon at the junctions can be avoided.

The invention relates to an optical fiber composite low-voltage cable joint box and a connecting process thereof. The joint box is characterized by comprising a cable inlet hole module, a photoelectric connecting protection module and a cable outlet hole module, wherein the cable inlet hole module and the cable outlet hole module are symmetrical to each other relative to the photoelectric connecting protection module and are connected with the photoelectric connecting protection module through screw threads respectively; and the outer diameter of the photoelectric connecting protection module at a screw thread joint is smaller than those of the cable inlet hole module and the cable outlet hole module. The connecting process comprises the following steps that: an optical fiber enters from a branching hole; the optical fiber enters an optical fiber connecting distribution channel in a spiral or sinusoidal way; and joints are fixed in the optical fiber connecting distribution channel and are connected. The equipment has the characteristics of assembly and disassembly flexibility and convenience of maintaining, is convenient to install, disassemble and assemble, do not need integral replacing during breakdown maintenance and saves maintenance cost.

The invention relates to an adhesive tape winding drum for a belt conveyer, which is characterized by comprising a winding drum, a half shaft and a bearing seat, wherein two ends of the winding drum are connected respectively through the half shaft and the bearing seat; the half shaft which is in a split structure is divided into two parts by a pair of slot disks, and the slot disks are connectedtogether through a fixed pin shaft; the winding drum is a hollow drum body in which a plurality of rib plates are arranged, a wedge slot is arranged on the rib plates, and the direction of the wedge slot is opposite to the rotation direction of the winding drum; and the lateral surface of one of the slot disks is provided with a V-shaped groove, and the other slot disk is correspondingly providedwith a lug boss matched with the V-shaped groove. The invention has the advantages that (1) by adopting a split assembly mode, the winding drum has compact structure, can be assembled and disassembled flexibly, can be transported conveniently and can be used repeatedly; (2) the winding drum can not be limited by fields and reduces the labor intensity of operators, and the wound tape is compact and regular; and (3) the winding drum is in the structure of the wedge slot in the reverse rotation direction, and one end of an adhesive tape is inserted into the wedge slot to drive the winding drum to wind the adhesive tape without an additional adhesive tape fixing device.

The invention relates to an end wall fixing device in rail vehicle end relation tests, and particularly to a universal aluminum section vehicle end fixing device. The device comprises a cast iron T-groove pedestal platform, a vehicle end support counterforce framework assembling body, a flexible variable support end wall assembling body and a flexible vehicle end edge assembling body; the vehicle end support counterforce framework assembling body is fixed on the cast iron T-groove pedestal platform; the flexible variable support end wall assembling body and the vehicle end support counterforce framework assembling body are in fixed connection through a three dimensional force transducer assembling body; and the flexible variable support end wall assembling body and the flexible vehicle end edge assembling body are in fixed connection through a vehicle end wall connection arm supporting structure assembling body. The invention discloses a universal variable aluminum section vehicle end fixing device that can be assembled and installed conveniently. According to the fixing device, the cable connection points among trains and the installation position of a force cell can be adjusted; the shape and dimension of the end wall can be adjusted according to a detected vehicle model; the rigidity can meet experiment requirement; and the versatility is high.

The invention discloses a combined turning tool teaching aid, which comprises a tool body and a base plate, wherein the tool body and the base plate are detachably connected with each other. The tool body comprises a tool bit and a tool handle, which are detachably connected with each other. The tool bit is formed by detachably connecting at least two tool bit combination block. Various turning tools and turning tool geometric angles can be demonstrated by means of assembly and disassembly to rapidly improve spatial imagination for students and enable the students to understand and master contents of courses.

The invention relates to a fast installing picture fixing rod, which comprises a strip body, wherein a clamp groove is formed in at least one side of two wide surfaces of the strip body; a bookbinding strip is arranged in the clamp groove; a clamp hook element is clamped and arranged on the strip body. The fast installing picture fixing rod has the beneficial effects that the integral structure of the fast installing picture fixing rod is simple; the operation and the use are convenient; the stability is good; the reliability is high; the fast splicing mounting and dismounting of an exhibition frame can be realized; a picture can be flexibly and firmly fixed; the time and the labor are saved; the work efficiency is improved.

The invention relates to an electric cylinder anti-rotation mechanism which comprises a guide rod and a plurality of anti-rotation assemblies, wherein the guide rod is in screw-thread fit with a lead screw nut of an electric cylinder. Each anti-rotation assembly comprises a holder and idler wheels, wherein the holder is fixedly connected with a supporting shell of the electric cylinder, and the idler wheels are arranged on the holder in a rotating mode. Anti-rotation planes are arranged on the outer wall of the guide rod, each anti-rotation plane makes rolling contact with at least one idler wheel, and the center lines of the idler wheels are perpendicular to the center line of the guide rod. The rolling contact between the guide rod and the idler wheels is achieved by simultaneously utilizing the idler wheels and the guide rod, wherein the idler wheels and the guide rod are perpendicularly arranged. When the lead screw nut rotates along with a lead screw shaft, the requirement for the anti-rotation function of the guide rod is met through the contact between the idler wheels and the anti-rotation planes, therefore, rotation prevention of the lead screw nut is achieved, and the lead screw nut can do frontward and backward linear movement relative to the lead screw shaft. Under the linear movement, the guide rod makes rolling contact with the idler wheels, sliding friction produced when rotation prevention is achieved in the prior art is avoided, abrasion is reduced, the load rate and the temperature of a motor are lowered, the service life is prolonged, and reliability is improved in the working process.

The invention discloses an automatic spraying and dust inhibiting apparatus capable of being rapidly disassembled and assembled and rotating, and relates to the technical field of material bin transportation, wherein the apparatus comprises: a fixed support pipe, a flange disc, a ball head, an induction probe, a rotary bushing, a rotary handle, a locking screw, a nut, a rotary handle bushing, a lifting hollow screw rod, a ball head top plate, a top plate small hole, lubricating oil, a lifting lug, a spraying support beam, a counterweight box, a spraying pipe, a spraying nozzle high-pressure hose, a quick change joint, a water inlet pipe, a water pump and a water box. According to the present invention, the apparatus effectively inhibits the dust flying condition during the material unloading of the vehicle, and eliminates the harm of the flying dust to the equipment and the personnel; the spraying device can be quickly disassembled and assembled, and flexibly rotates without blocking;through the rotation of the hollow screw rod, the height of the spraying nozzle can be adjusted to adapt to various types of vehicles; and the induction probe monitors the vehicle, and the water spraying and dust inhibiting is performed during the material unloading of the vehicle so as to achieve the effects of energy saving and consumption reducing.

The invention discloses an automobile parking heat radiation system, which comprises a remote controller, a control system, a water cooling system and a ventilation system, wherein the water cooling system comprises a water tank, a water pump, a one-way valve and a heat radiator, the ventilation system comprises an electric fan, the control system comprises an MCU (micro control unit) controller, a power amplifier, a wireless electric signal receiver, a temperature sensor, an electric fan driving switch and a water pump driving motor, and the remote controller comprises a wireless electric signal emitter. Compared with the prior art, the automobile parking heat radiation system adopts the intelligent management mode and has the advantage that the use is convenient and fast.

The invention discloses a building piling device with the depth convenient to adjust and a using method thereof, and relates to the technical field of building construction piling equipment. The problem that the stress degree of a pile body cannot be adjusted is solved. The building piling device with the depth convenient to adjust comprises a machine body, wherein a fixing seat is fixedly connected to the outer wall of the top of the machine body, a motor is fixedly connected to the outer wall of the top of the fixing seat, a winding roller is arranged on the outer wall of one side of the fixing seat, and the input end of the winding roller is connected with the output end of the motor through a connecting shaft; a pile hammer is connected to the outer wall of the winding roller through a rope, positioning plates are fixedly connected to the outer walls of the two sides of the pile hammer correspondingly, and baffles are arranged on the outer walls of the tops of the positioning plates. The using method of the piling device comprises the following steps that telescopic movable supporting legs are adjusted to fix equipment after the equipment is pushed to a destination. According to the combination of adjusting the height of the pile hammer, installing a top plate and installing an elastic rope, the piling depth can be flexibly adjusted, so that the piling efficiency is improved, and the construction period is shortened.

The invention discloses a garlic seed belt processing and production system. The garlic seed belt processing and production system comprises a first frame, a spoon chain seed fetching device, a guideplate, a third frame, a second conveyor belt, a negative pressure cavity, a plurality of air suction mechanisms, a pressing wheel, and a motor, wherein a first conveyor belt seed screening box is arranged at the upper part of the first frame and is arranged at the bottom of the other end of a first conveyor belt; the spoon chain seed fetching device is provided with a seed fetching chain on whicha plurality of seed fetching spoons are distributed; one end of the guide plate is connected with the other end of the spoon chain seed fetching device; the third frame is arranged below the guide plate; a first bracket and a second bracket are arranged on both sides of the third frame; the second conveyor belt is arranged between the first bracket and the second bracket, with a lower paper belt attached to the second conveyor belt; the air suction mechanisms are communicated on the circumference of the negative pressure cavity; the pressing wheel is arranged above the second conveyor belt; the power output end of the motor is connected with a chain to enable the negative pressure cavity, the pressing wheel and the second conveyor belt to rotate synchronously. Garlic seeds are coated between paper belts to realize large-scale production of garlic seed belts.

The invention discloses a grass-type lake benthonic animal collector, which comprises a shell, a cutting plate, a net bag, a load-bearing clamping plate and a double pull rope. The shell is fixed below the net bag, the upper portion of the shell is connected with the double pull rope, the cutting plate is installed in the shell, and the outer portion of the shell is connected with the load-bearing clamping plate. The cutting plate can be matched with the double pull rope to complete cutting of surface sediments. The net bag can prevent the benthonic animals from escaping in the sample collection process, and can also be used for primary screening of the samples. The load-bearing clamping plate can determine the thickness of surface sediments collected by the collector according to scale marks outside the shell. The double pull rope is separately connected with the shell and the cutting plate and completes descending and ascending operations of the collector. The grass type lake benthonic animal collector is convenient to operate, and can be used for simultaneously collecting submerged plants in a grass-type lake and benthonic animals in surface sediments, and improving the sampling accuracy and efficiency.

The invention discloses an assembled continuous lifting jack for finish-rolling threaded steel bar vertical columns. The common prestress tensioning jack (1) is fixed on the finish-rolling threaded steel bar vertical columns (2) through a jack tail clamping plate (4) and a jack bearing steel plate (5); an upper tool anchor (8) is fixed on the head of a piston of the common prestress tensioning jack (1) through bolts; a lower tool anchor (9) is positioned on the lower part of the common prestress tensioning jack (1) and fixed on a lower tool anchor fixing steel plate (6) through an anchor plate clamping ring (15), a lower tool anchor plate clamping ring and a lower tool anchor fixing steel plate connection sleeve (16); threaded sleeves (10) are sleeved outside the finish-rolling threaded steel bar vertical columns (2) and positioned between the jack bearing steel plate (5) and the lower tool anchor fixing steel plate (6); a guide safety anchor (7) is positioned above the common prestress tensioning jack (1) and fixed with an upper guide safety anchor fixing steel plate (3) through bolts; and the upper guide safety anchor fixing steel plate (3) is fixed on the finish-rolling threaded steel bar vertical columns (2).

The invention discloses a pair of arch wire tail end bending pliers. The front ends of pliers handles extend to form clamping arms. The front ends of the clamping arms are provided with pliers beaks which are adjustable in angle and can be assembled and detached. The pliers beaks include the upper pliers beak and the lower pliers beak arranged on the two clamping arms respectively. The edge parts of the upper pliers beak and the lower pliers beak are opposite. A bending pressure edge and a limiting edge are arranged on the edge part of the upper pliers beak in parallel. The height of the bending pressure edge is larger than that of the limiting edge. A fulcrum edge is arranged on the edge part of the lower pliers edge. When the pliers handles are folded together completely, the fulcrum edge is inserted in a gap between the bending pressure edge and the limiting edge, and the pressure connecting face of the fulcrum edge is located between the pressure connecting face of the bending pressure edge and the pressure connecting face of the limiting edge. When the tail end of an arch wire is bent, the passive traction effect on the arch wire can be effectively relieved, and meanwhile the adverse stress effect conducted to an adhesion component on the tooth face is eliminated. More flexible operability is provided for orthodontics doctors, the vision is widened, and pains and fatigues of patients are reduced.

The invention relates to a roller blind type farmland water return pesticide purifier based on photocatalytic degradation. The purifier structurally comprises a left fixed pile, a right fixed pile, astorage box, an upper winding shaft, rocking handles, a photocatalyst-loaded mesh blind, a lower winding shaft, a loading magnet and a bottom fixing iron bar, wherein a bearing A is arranged at the center of the outer surface of the side surface of the left end of the storage box; a bearing B is arranged at the center of the outer surface of the side surface of the right end of the storage box; the upper winding shaft passes through the centers of the side surfaces of the left and right ends of the storage box; the upper winding shaft penetrates through the left and right ends of the storage box; the left end of the upper winding shaft is connected with the upper end of the left fixed pile through the bearing A 10-1; the right end of the upper winding shaft is connected with the upper endof the right fixed pile through the bearing B; the rocking handles are arranged at two ends of the upper winding shaft; the upper end of the photocatalyst-loaded mesh blind is connected with the upperwinding shaft; the lower winding shaft is arranged at the lower end of the photocatalyst-loaded mesh blind; and the loading magnet is arranged on the lower winding shaft.

A high-density multichannel waveguide network comprises an upper flange, a lower flange, top layer waveguide links, middle layer waveguide links and bottom layer waveguide links. The upper flange and the lower flange are both circular, and the diameter of the upper flange is smaller than that of the lower flange. The top layer waveguide links comprise 128 E-face or H-face 90-degree bent waveguides, the middle layer waveguide links comprise 128 multi-bent irregular waveguides, and the bottom layer waveguide links comprise 128 E-face or H-face 90-degree bent waveguides and 128 transition waveguides. The output end of each bent waveguide is connected with the corresponding transition waveguide. According to the high-density multichannel waveguide network, the arrangement of the 128 waveguide links can be achieved in a compact space through a reasonable layout mode.

The invention provides a roman chair for back training, belongs to the field of back fitness equipment, and mainly relates to a fitness chair. The aim is to solve the problems that in the prior art, the roman chair is complex in structure and poor in adjustment ability, different people may easily have spinal injuries because of the size problem of machines. A load bearing structure is arranged onthe front end of a base, pedals and blocking legs are arranged on the rear end of the base, the load bearing structure includes a bearing frame, a bearing cushion body, a first connecting rod, a second connecting rod and a limit clamping plate, the bearing cushion body is arranged at one end of the first connecting rod, the other end of the first connecting rod is connected with the top of the second connecting rod in a hinged mode, the lower end of the second connecting rod is connected with the base in a hinged mode, the limit clamping plate is vertically fixed on one side of the first connecting rod, and the first connecting rod is connected with the bearing frame in a clamping mode through the limit clamping plate. The roman chair for back training is flexible to adjust, small in size, simple in structure, light in weight, and convenient for repair and maintenance.

The invention discloses a local vacuum sealing tool for laser welding. The local vacuum sealing tool is characterized in that s sealing cover I comprises a body I, a vacuum groove I is formed in the body I; a sealing cover II comprises a body II, a vacuum groove II and a mounting groove are formed in the body II, the mounting groove and the vacuum groove II extend in the same direction and communicate with each other, and a laser protection lens is arranged in the mounting groove; and the body I and the body II are correspondingly provided with an air hole I and an air hole II which correspondingly communicate with the vacuum groove I and the vacuum groove II. A laser welding device comprises a vacuumizing system, a laser welding system and the local vacuum sealing tool. When the local vacuum sealing tool is in use, the sealing cover I and the sealing cover II are arranged on two side plate surfaces of a to-be-welded flat plate correspondingly, the vacuum groove I and the vacuum grooveII are opposite to a joint part, and then vacuumizing and laser welding operation are carried out. The local vacuum sealing tool is flexible to assemble and disassemble, small in vacuum chamber size,short in vacuumizing time and high in efficiency, and limitation of existing vacuum laser welding equipment on welding of large-size and large-thickness structural materials is break through.

The invention discloses a pressurizing steam box device which comprises at least two box shells stacked up and down and a heating device arranged on the left upper side of the box shells, wherein air guide ports are formed on the left side of the box shells; air guide pipes are matched with the air guide ports; pressurizing chambers and pushing chambers are arranged in the box shells; more than two sets of clamping blocks are correspondingly arranged on left chamber walls and right chamber walls of the pushing chambers; steaming plates are arranged between the clamping blocks; and the steaming plates can stretch back and forth in the pushing chambers under the effect of the clamping blocks. The pressurizing steam box device has the advantages of simple overall structure, random assembling and disassembling, convenience in carrying, low cost, excellent steaming effect and suitability for popularization.

The invention provides a multi-intelligent-terminal synchronous shooting method and device. A plurality of intelligent terminals can be arranged, and can acquire images at the same time. Through adoption of the method and the device, simultaneous multi-angle shooting based on the intelligent terminals can be realized easily; convenience is brought to further utilization of pictures or images shot from a plurality of angles for a user; and an ordinary user can shoot and synthesize images being rich in content and higher in interestingness such as 3D images or 360-degree panoramic images.

The invention discloses a tooling fixture for a vibration test bench, which belongs to the technical field of tooling design for testing and is suitable for clamping and fixing cables, boxes and cylindrical electrical components when performing vibration tests. It is composed of cable vibration tooling, box type and cylindrical type vibration tooling. The tooling fixture for the vibration test bench of the present invention has the advantages of simple structure, good manufacturability, flexible clamping and strong versatility, can clamp various test pieces at one time, and is economical and time-saving.

The invention discloses a tubular modularized waste gas purification treatment device. The tubular modularized waste gas purification treatment device comprises a plurality of pipeline modules which are connected with one another in an end-to-end manner, wherein each pipeline module comprises a pipeline, a plurality of electrodeless ultraviolet lamp tubes which are arranged in the pipeline and an electromagnetic wave transmitting source which is arranged at one end of the pipeline and is used for illuminating each electrodeless ultraviolet lamp tube to release ultraviolet rays, and the electrodeless ultraviolet lamp tubes are distributed along the direction parallel to the axial direction of the pipeline. By adopting the tubular modularized waste gas purification treatment device, the traditional box-type structure design way is abandoned, the pipeline-type modularized design is adopted, each pipeline module is a waste gas purification treatment unit, the pipeline modules can be flexibly dismounted and combined according to the properties of real waste gas flow rate and concentration and the like as well as real field application situations, the waste gas purification route is effectively lengthened, the waste gas can be subjected to the adequate illumination catalytic purification treatment of the electrodeless ultraviolet lamp tube, and thus the purification treatment efficiency can be greatly improved.

The invention discloses a fireproof plugging system for a cable trench. The system comprises a compressed air foam generating device which comprises a compressed air tank, a foam liquid tank, a water tank and a mixer. An air inlet and a foam outlet are formed in the foam liquid tank. A foam liquid inlet and a mixed liquid outlet are formed in the water tank. A mixed liquid inlet, an air inlet and a liquid outlet are formed in the mixer. A tee joint is arranged at an outlet of the compressed air tank, the first end of the tee joint is connected to the air inlet, the foam outlet of the foam liquid tank is connected to the foam liquid inlet, and the mixed liquid outlet is connected to the mixed liquid inlet. The second end of the tee joint is connected to the air inlet. The system further comprises a main conveying pipe, the liquid outlet is communicated to the main conveying pipe, and a plurality of partition conveying pipes are connected to the main conveying pipe. Spray heads are arranged on the two sides of the firewall of the cable trench, and the partition conveying pipes are led to the spray heads. The system has the advantages of being high in plugging efficiency, small in size, large in foam output amount, easy to construct and maintain, safe to use and capable of facilitating mass application and popularization.

The invention provides a temporary power supply for a power distribution automatic terminal device. The temporary power supply comprises a device box, wherein a holder is arranged at the rear side of the upper part of the device box; a solar cell panel is hinged at the upper end of the holder; and a drive device for driving the solar cell panel is arranged between the holder and the solar cell panel. Through adoption of the technical scheme, according to the temporary power supply and the method, in a solar cell panel power supply mode, the influence resulting from a territory is very low, the normal working of a power supply terminal device is ensured under exceptional circumstances until line power-cut overhauling is carried out and factory maintenance personnel arrive. The increase of the line power-cut times and a terminal device offline rate resulting from singly processing device hidden troubles such as a PT device fault can be avoided, and the power supply reliability of the line is improved.

The invention discloses a high-voltage external series gap anti-thunder combination device. The anti-thunder combination device comprises two parts of a discharge gap component arranged at the upper portion and a zinc oxide valve plate component arranged at the lower portion, and the discharge gap component is connected to the zinc oxide valve plate component through a stud; the high-voltage external series gap anti-thunder combination device prevents a 10 kV high-voltage wire from being damaged by thunder, improves convenience of construction and installation and stability of equipment operation, and improves the equipment operation parameter; horizontal discharging is maintain in a gap, and line short circuit caused by rainwater or freezing during together vertical discharging; a quality stainless steel metal electrode is adopted to replace a traditional aluminum electrode to enhance firing-resistance capability, and the service life is prolonged; a new technology is adopted to manufacture a zinc oxide valve plate so that the conduction capacity can be big.

The invention provides a novel connecting flange. The novel connecting flange comprises a first connecting end and a second connecting end. The first connecting end and the second connecting end eachinclude a flange plate and a connecting pipe welded and fixed to the flange plate. The two connecting pipes are connected and fixed together through threads. Connecting end surfaces of the two connecting pipes are provided with sealing pads. Center pipe openings of the flange plates of the first connecting end and the second connecting end are provided with a first connecting ring and a second connecting ring in sealed and sleeving mode correspondingly. A buffering net plate is further connected in the first connecting ring in a clamped mode. The buffering net plate includes a mounting frame body and a mansard blocking bar welded and fixed to the mounting frame body. The novel connecting flange has the beneficial effects that the two connecting ends are designed to be a threaded connectingstructure, so that the novel connecting flange has the ability to be disassembled so that the two connecting ends can be disassembled when the situation that one connecting end of the flange is damaged and cannot be applied and the other connecting end is structurally intact is encountered, the flange is assembled with a new connecting end into a whole to be used, so that a repairable characteristic is given to the flange, and the using cost of the flange is reduced accordingly.

The invention provides a coupled floating body device for preventing and controlling water bloom by utilizing a slow-release algal inhibition agent. The coupled floating body device structurally comprises a single floating body. The single floating body comprises gauze elements, a plurality of hemispherical purifying balls, a fixing rod and a floating body main frame. A hanging ring A is installedon two sides of each hemispherical purifying ball respectively, hanging rings B and hooks are arranged on the floating body main frame, the hemispherical purifying balls are fixed to the fixing rod through the hanging rings A, two ends of the fixing rod penetrate through the hanging rings B to be hung on the floating body main frame, and the gauze elements are located in the hemispherical purifying balls. The coupled floating body device has the advantages that dismounting is simple, flexible and quick, and the device can be dragged to any area of a water body as required and has good maneuverability; the algal inhibition efficiency is high, the duration time is long, and the ecological safety is high; full contact between the algal inhibition agent and algae on the surface layer of the water body is ensured, diffusion of the algal inhibition agent is facilitated, and the influence of bottom mud attachment on the algal inhibition effect is avoided; the algal inhibition agent is convenient to supplement and update and meets the long-term water bloom prevention and controlling demand.

The invention provides a portable ice surface engraving device. The portable ice surface engraving device comprises an engine, an engine clamping table, a milling cutter positioning sliding block, a milling cutter, a engraving machine frame and a cross beam. Cross beam sliding rails are installed on both sides of the engraving machine frame, and the cross beam is arranged between the two crossbeamsliding rails. Cross beam sliding blocks are arranged at both ends of the cross beam. The two cross beam sliding blocks are separately installed on the cross beam sliding rails on each side and can slide along the cross beam slide rails. The engine clamping table is arranged below the engine, and the engine clamping table is clamped into a cylindrical concave table of the positioning sliding block. The milling cutter penetrates through the engine clamping table and is connected with a rotating shaft of the engine, and the cross beam is of a hollow structure, and the hollow structure forms a positioning sliding rail, wherein the positioning sliding block can slide on the cross beam. According to the portable ice surface engraving device, ice with any shape is engraved quickly and accurately on a predetermined ice surface, the traditional process of processing irregular-shape natural ice is greatly simplified, the structure is simple, flexible assembly and disassembly of various parts are achieved, and transportation and carrying under outdoor ice and snow conditions are facilitated.