165results about How to "Quick positioning installation" patented technology

The utility model discloses an in-plant trial assembly assistive device for a door-shaped rotary bearing beam of a bucket-wheel excavator. The in-plant trial assembly assistive device comprises a pitching reaming coaxial tool and a rotary center coaxial tool. The pitching reaming coaxial tool comprises a transverse center shaft, a side clamping flange and a side baffle, a first middle stand column and a second middle stand column are fixed to the two ends of the transverse center shaft through the side clamping flange and the side baffle, and it is guaranteed that the pitching reaming coaxiality of the material taking arm meets the drawing requirement; the rotation center coaxial tool comprises a vertical center shaft, a top clamping flange, a top baffle and a supporting base, the top of the rotation center coaxial tool fixes a top cross beam to the vertical center shaft through the top clamping flange and the top baffle, and the bottom of the rotation center coaxial tool fixes the vertical center shaft and a bearing beam rotation base together through the supporting base. And the coaxiality of the rotating shaft of the discharging arm to the rotation center meets the drawing requirements. According to the utility model, the product assembly precision can efficiently meet the drawing requirement, each part can be supported and connected, the overall stability of the product is improved, and the safety risk in the production process is reduced.

The invention discloses a surface defect indentation marking and rapid indentation response testing device and method, and relates to the technical field of precise instruments and industrial automatic detection.The surface defect indentation marking and rapid indentation response testing device comprises a supporting unit, a macroscopic moving unit, a rapid switching unit and a precise testing unit, the macroscopic moving unit is arranged on the supporting unit, the rapid switching unit is connected with the macroscopic moving unit, the precision testing unit is arranged on the macroscopic moving unit, and the precision testing unit comprises a scanning structure and an indentation marking structure. The macroscopic moving unit can drive the precise testing unit to move, and the rapid switching unit is used for switching the positions of the scanning structure and the indentation marking structure. According to the surface defect indentation marking and rapid indentation response testing device and method, the positions of the scanning structure and the indentation marking structure can be rapidly switched.

The front triangular three-dimensional tool clamp is characterized in that the front triangular three-dimensional tool clamp comprises a mounting table, a plurality of threaded holes are formed in the mounting table in the length direction, a vertical pipe support, a first lower pipe support, a second lower pipe support and a head pipe support are arranged on the mounting table, and the head pipe support is used for fixing a head pipe of the frame; the vertical pipe bracket is used for fixing a vertical pipe and a bottom bracket of the frame; the first lower pipe support and the second lower pipe support are used for supporting the lower pipe, and by the adoption of the method and through the design of the clamps, rapid installation and positioning of the frame can be achieved, the working efficiency is improved, and it can be guaranteed that deformation cannot occur in the welding process; through the detachable design of the shaft pins, different types of frames can be quickly mounted, the mounting and dismounting are simple and quick, the working efficiency is improved, the whole set of clamp does not need to be replaced, and the use cost of the clamp is reduced; and through cooperation of the clamps and precision welding of the welding robot, the industrial production efficiency is improved, and the production cost is reduced.

The utility model relates to the field of ice makers, in particular to a positioning structure of an ice maker evaporator distributive pipe, an ice maker comprises an ice cube tray, an evaporating pipe, a shell and a distributive pipe, the evaporating pipe is arranged on the back of the ice cube tray, the ice cube tray is fixed in the shell, and the distributive pipe is arranged above the shell. The positioning structure comprises a first opening and a second opening which are formed in the two sides of the top of the shell respectively, the first opening and the second opening are matched with the water distribution pipe in shape, and the water distribution pipe is erected on the first opening and the second opening. A bulge is arranged in the second opening, a positioning hole is correspondingly formed in the water distribution pipe, and the positioning hole is matched with the bulge; water distribution holes are formed in the water distribution pipes, and the water distribution holes and the positioning holes are all located below the water distribution pipes. According to the positioning structure of the water distribution pipe of the ice maker evaporator, the direction of the water distribution holes does not need to be additionally adjusted when the water distribution pipe is installed through the structure, installation is completed in one step, installation steps of the water distribution pipe are simplified, installation of the water distribution pipe is simpler, and installation efficiency is improved.

The utility model relates to the technical field of automobile production, in particular to an automobile skylight installation clamp which comprises a first installation plate, a telescopic block and a second installation plate, second cavities are formed in the two sides of the interior of the first installation plate respectively, lead screws are installed in the second cavities, a threaded groove is formed in the telescopic block, and the second installation plate is connected with the threaded groove. An electric push rod is installed at the bottom of one end of the telescopic block, and a clamping plate is installed at the output end of the electric push rod. Redundant air in the first air pipe, the negative pressure suction cup and the second air pipe is exhausted through the vacuum pump, so that vacuum negative pressure is formed between the negative pressure suction cup and the glass skylight to suck up the glass skylight, the glass skylight is moved to the position over the skylight mounting position on the top of an automobile, and then the position of the whole clamp is lowered. And the bottom of the glass skylight can be better matched with the position where the skylight is installed on the top of the automobile, the glass skylight can be rapidly positioned and installed, and the installation efficiency of the automobile skylight is improved.

The utility model discloses a sleeve repair tool for a fuel manifold of a turboshaft engine, which comprises a support with the top end provided with a penetrating column with threads on the inner wall, and further comprises a threaded pressing rod with the top end provided with a pulling rod, and the threaded pressing rod is in threaded connection with the penetrating column through the threads on the outer wall; a semi-arc-shaped pressing plate is arranged at the bottom of the T-shaped sliding block, and the T-shaped sliding block is movably connected with the threaded pressing rod; a shape correcting arc plate is arranged on the positioning column opposite to the semi-arc pressing plate, and the positioning column is located at the middle section of the support; and the gland is connected to the positioning column through a bolt. According to the sleeve repairing tool for the turboshaft engine fuel main pipe, the problems that in the prior art, manual positioning is not accurate, and pipe wall cracks and internal threads are prone to being crushed to be scrapped due to repeated knocking are solved.

The application discloses a kind of bucket wheel excavator door type rotation bearing beam factory in-house test installation auxiliary tool and method, including pitch hinge hole coaxial tool and rotation center coaxial tool;Pitch hinge hole coaxial tool includes horizontal center shaft, side clamping flange, side baffle, and middle column one and middle column two are fixed in the both ends of horizontal center shaft by side clamping flange and side baffle, ensure that the coaxial degree of material taking arm pitch hinge hole meets the requirements of drawing;Rotation center coaxial tool includes vertical center shaft, top clamping flange, top baffle, support base, top is fixed on vertical center shaft by top clamping flange and top baffle, bottom is fixed together by support base, and the coaxial degree of rotation shaft of material discharge arm to rotation center meets the requirements of drawing is guaranteed.The application can efficiently make product assembly precision meet the requirements of drawing, and also can support and connect each component, improve the overall stability of product, reduce the safety risk in production process.

The invention discloses a quick mounting structure and method for a steel structure corridor, and belongs to the technical field of corridor mounting. The device comprises a corridor and a building, a first corridor inserting plate and a second corridor inserting plate are welded to the top and the bottom of the two ends of the corridor correspondingly, two pieces of profile steel perpendicular to the corridor are fixed to a pouring beam of the building, and a first corridor connecting base and a second corridor connecting base are welded to the profile steel; the first corridor connecting base and the second corridor connecting base are both provided with inserting grooves matched with the first corridor inserting plate and the second corridor inserting plate. The connecting corridor is high in stability, the multiple connecting corridor connecting bases are fixedly connected with the pouring beam and the profile steel, so that the whole connecting corridor is connected with the connecting corridor connecting bases and then connected with a whole building, meanwhile, the supporting pieces and the hydraulic damping pieces are arranged on the pouring beam, the stability of the connecting corridor is further improved, and the connecting corridor is convenient to use. The middle of the corridor is connected with the building through a plurality of diagonal draw bars at the top of the corridor, the gravity of the corridor is reduced, and the safety performance is improved.

The present invention discloses a modular tile strip quick installation and anti-drop locking device for high-rise building roofs, comprising a tile strip and a tile body, wherein the tile body is installed directly above the tile strip, a fixed shell is fixedly connected directly above the tile body, and further comprises a plug-in mechanism arranged inside the fixed shell, and a limit mechanism installed directly above the tile strip; wherein the plug-in mechanism is used to plug and install the tile strip and the tile body. The fast installation and positioning between the tile strip and the tile body is achieved, and the anti-drop protection function is provided at the same time, which avoids the separation problem that is easy to occur in direct plug-in, and improves the operability and reliability of the anti-drop locking device.

The utility model discloses a high-torque automobile door handle actuator motor capable of being rapidly installed, and the motor is characterized in that the motor comprises a square motor housing, a rotor is rotatably arranged in the motor housing, one end of the motor housing is connected with an end cover in a clamping manner, and four corners of the inner side of the motor housing are respectively provided with a neodymium iron boron magnet; an iron core of the rotor is in a six-groove shape, and two carbon brushes are arranged in the end cover at an interval of 90 degrees, by adopting the method, through the square motor shell, rapid installation and positioning are achieved, screw fastening is not needed, through cooperation of six grooves and four poles, the space of the motor shell is utilized to the maximum extent, the torque of tooth grooves is reduced, and meanwhile through the design of auxiliary grooves, the service life of the motor shell is prolonged. The cogging torque is further reduced, large torque and small cogging torque are achieved, and the use requirement is met.

The utility model discloses a waterproof wear -resisting type slipper relates to slipper technical field, including sole, the top surface bonding of sole has vamp, the top surface of sole is equipped with first drain and second drain, the top of sole is equipped with antiskid salient, the both sides of sole are bonded with first wear -resisting piece, the outer wall mounting of first wear -resisting piece has second wear -resisting piece, one side of first wear -resisting piece is equipped with third wear -resisting piece. This waterproof wear -resisting type slipper is provided with first drain and second drain, when the slipper is contacted with ponding, the user lifts the foot, and the water stain can be discharged quickly through first drain and second drain, prevents the water stain to remain, influences the comfort of wearing, and can first wear -resisting piece, second wear -resisting piece and third wear -resisting piece carry out quick positioning installation dismounting, is convenient for maintenance, and through first wear -resisting piece, second wear -resisting piece and third wear -resisting piece can obviously promote the wear -resisting capacity of slipper.

The present invention relates to the technical field of grinder equipment, and discloses an animal tissue sample grinder, including an outer shell, a protective cover hinged at the top of the outer shell, a locking device arranged at the connection between the protective cover and the other side of the outer shell, a control module arranged on one side of the outer shell, and the control module electrically connected to the inside; and also includes a guide ring body, the guide ring body vertically slides on the upper part of the inner wall of the outer shell, and the inner wall of the guide ring body is provided with a band groove 1 that periodically fluctuates up and down. The present invention utilizes a placement mechanism to quickly position and install a grinding bottle, and can also quickly disassemble and install a placement rack of a required size to meet the needs of different grinding specifications; the guide mechanism is driven by a motor to realize a rotation trajectory of the placement mechanism in a nearly "∞" shape, providing a complex force for the grinding balls in the tilted grinding bottle, and the grinding balls can cover the area inside the grinding bottle when they collide with each other, thereby improving the grinding efficiency.

The utility model relates to circulating water aquaculture filtration technical field discloses a kind of three-dimensional filter devices of circulating water aquaculture, including coarse filter box, the coarse filter box inside is provided with coarse filter screen, the coarse filter box side wall is provided with fine filter box, the fine filter box inside is provided with fine filter screen, the fine filter box side wall is provided with biological filter box, the biological filter box inside is provided with filler plate, the biological filter box side wall is provided with clean water tank, the coarse filter box side wall is provided with cleaning assembly, the biological filter box inside is provided with mounting assembly;The cleaning assembly includes cleaning plate, and the cleaning plate side wall is attached to the coarse filter screen side wall.In the utility model, the chain sprocket and chain transmission driven by motor are used to move the cleaning plate up and down along the coarse filter screen to scrape off impurities, so as to achieve the effect of automatic cleaning of filter screen and prevention of blockage. The above structure improves the automation maintenance efficiency of the filter device and reduces the labor operation cost.

The utility model relates to the application technical field of punch pliers, especially to a punch and crimping pliers convenient to assemble, a punch and crimping pliers convenient to assemble, including first connecting pliers head, first connecting pliers head lower part is connected with second connecting pliers head, its characterized in that: second connecting pliers head with first connecting pliers head between be provided with transmission guide piece and rotate the connection, transmission guide piece one side is connected with transmission pull rod, through pressing fit transmission pull rod with first connecting pliers head, make punch and crimping pliers front end opening, open or close, first connecting pliers head with second connecting pliers head opening end respectively be provided with first pliers head magnetic attraction seat with second pliers head magnetic attraction seat, first pliers head magnetic attraction seat lower part is provided with punch end head with crimping device, first pliers head magnetic attraction seat is used for respectively to punch end head with crimping device magnetism and fix.

A hidden fast-assembly drawer track system comprises various cabinets and drawers, first front rollers and track grooves are arranged on left and right vertical plates of the cabinets, and first rear rollers or third rear rollers are arranged at the rear upper ends of the two sides of the corresponding drawers when first track grooves or third track grooves are formed in the left and right vertical plates of the cabinets; when second track grooves or fourth track grooves are formed in the left and right vertical plates of the cabinet, second rear rollers or fourth rear rollers are arranged at the rear upper ends of the two sides of the corresponding drawer, the first front rollers are in rolling fit with the bottom surfaces of the two sides of the drawer, and the second rear rollers or the fourth rear rollers are in rolling fit with the second track grooves or the fourth track grooves in the left and right vertical plates of the cabinet; the first front roller is a combined cylinder, the front part is a self-tapping screw, the rear part is provided with a roller, and the rear end is provided with a locking and screwing groove. The drawer can be quickly positioned and mounted, and the rail is hidden in the vertical plate of the cabinet, so that the space occupied by the drawer rail is saved, the drawer rail cannot be seen after the drawer is drawn out, and the drawer rail is neat, attractive and low in use cost.

The utility model relates to the field of batteries, and provides a battery and an electric device. The battery comprises a battery cell, a substrate and a support table. And at least two battery monomers are arranged. The battery monomers have opposite first and second sides along the first direction, and the first side of each battery monomer is provided with an electrode terminal. In the first direction, the battery monomer with the largest size is a first battery cell, and the battery monomer with the size smaller than that of the first battery cell is a second battery cell. The substrate supports a second side of each battery cell. The supporting tables are arranged corresponding to the second battery cells, and the supporting tables are supported between the corresponding second battery cells and the substrate. Based on the structure, the distance between the electrode terminal of the corresponding second battery cell and the electrode terminal of the first battery cell can be reduced in the first direction through the supporting table, so that the electrode terminals of the battery monomers can conveniently construct an electric connection relation through the confluence component, and the assembly quality, the assembly efficiency and the yield of the battery can be optimized.

This utility model relates to the field of oil drilling machinery technology, and more particularly to a mounting base for a steel drill bit and the steel drill bit itself. The mounting base for the steel drill bit includes a base for mounting the main body of the steel drill bit, multiple connecting components, and two transport positioning components. The multiple connecting components are distributed circumferentially along the base and fixed to its sides, for detachably mounting the base to the drilling platform. The two transport positioning components are detachably mounted on the base, with a first end rotatably connected to the base and a second end optionally connected to the main body of the steel drill bit mounted on the base. This eliminates the need for on-site mounting holes, significantly reducing installation time and improving overall operational efficiency. The base can also be used as a transport base, and the transport positioning components ensure the steel drill bit remains fixed to the base during transport, solving the problems of labor-intensive installation and transportation of steel drill bits, and excessively long installation times.

This invention discloses an installation and positioning device for precast cylindrical bridge piers, comprising four positioning parts assembled together to form a positioning cavity for the precast cylindrical bridge pier. Each positioning part consists of a positioning device, an adjustment device, and a lifting device. The positioning device is mounted on the lifting device and consists of a base plate, a first telescopic device, a second telescopic device, a sleeve, and a laser positioning system. The first and second telescopic devices are mounted on the base plate to drive the sleeve to move radially along the precast cylindrical bridge pier. The laser positioning system is mounted on the side wall of the sleeve. The adjustment device consists of an electric track mechanism and a miniature camera. The electric track mechanism and the miniature camera are mounted on the inner wall of the sleeve, with the miniature camera mounted below the electric track mechanism.

The utility model discloses a convenient wire arrangement device for wind power generation installation, including wire arrangement frame, clamping mechanism and running component, the clamping mechanism includes rotary lever, sliding block, spring, positioning rack and auxiliary assembly the auxiliary assembly includes fixed plate, first bolt and gyro wheel, the running component includes second bolt, third bolt, fixed part and movable part, under the mutual cooperation of above -mentioned mechanism, this device passes through the clamping mechanism fixed cable, avoids the cable displacement because of wind vibration or unit yaw rotation, reduces friction loss, in addition, the clamping block of this device can move along the slide rail to position quickly, reduces manual adjustment time, and the clamping block can move along the slide rail, and accurate matching wiring requirement, and the distance between each cable is same, thereby more beautiful.

A slitting tool for an annular plastic bearing comprises a base used for bearing equipment, a mounting assembly connected with the base and a slitting assembly used for cutting the annular plastic bearing. The slitting assembly is installed on a punching machine, the punching machine comprises a punch and a machine table, the punch is connected with the slitting assembly and used for driving the slitting assembly to do reciprocating motion, and the machine table is connected with the base and used for bearing the base. The mounting assembly comprises a bearing rod, a buffer sleeve and a guide sleeve. The slitting assembly comprises a blade. The guide sleeve is used for enabling the annular plastic bearing to be conveniently and rapidly arranged on the buffer sleeve in a sleeving mode, so that follow-up cutting operation is facilitated, and the production cutting efficiency of enterprises is improved. The buffering sleeve is used for bearing the annular plastic bearing and protecting the blade when the blade cuts the annular plastic bearing, and therefore the service life of the blade is prolonged.

The invention relates to a plate visual detection device and a detection method thereof.The plate visual detection device comprises a support, a pressing part and a flaw detection module adjustable in spatial position, a through hole allowing the pressing part to be installed is formed in the bottom end of the support, in the working state, the pressing part is attached to the side wall of a to-be-detected plate, and the flaw detection module is movably arranged on the support; the flaw detection module can be arranged at any point on the upper surface of a to-be-detected plate. According to the flaw detection device, the flaw detection module with the adjustable spatial position is arranged, so that when the flaw detection module is used for performing flaw detection on a workpiece, a worker does not need to hold the device by hand to perform flaw detection, and the transverse and longitudinal positions of the flaw detection device can be adjusted by arranging an electric push rod A and an electric push rod B; and therefore, automatic flaw detection can be realized when flaw detection is carried out on a workpiece, and the purpose of higher practicability is achieved.

The utility model provides a battery changing battery box for a heavy truck, which comprises a box body for storing a battery component, a box cover for sealing the box body is arranged at the upper end of the box body, positioning assembly plates are arranged on the box body and the box cover, mounting holes are formed in the positioning assembly plates, positioning mechanisms are arranged on two sides of the box body, an adsorption mechanism is arranged on the front surface of the box body, and the adsorption mechanism is arranged on the front surface of the box body. An electrical connection assembly is arranged on the back face of the box body. According to the battery box, the box body and the box cover are quickly positioned and mounted through the positioning assembly plate, so that the whole battery box is quickly, conveniently and reliably mounted, the battery box is quickly mounted on a heavy truck through the positioning mechanism and the adsorption mechanism, and a battery of the heavy truck is quickly replaced.

The utility model discloses a project supervision monitoring device, which belongs to the technical field of project supervision, aims to solve the problems that the monitoring height cannot be adjusted and the movement is inconvenient, and comprises a mounting frame and a door plate, the door plate is hinged to the front side of the mounting frame through hinges, and moving wheels are fixedly mounted at the bottom of the mounting frame and close to four corners. A lifting mechanism is arranged at the top of the mounting frame, a damping rotating disc is fixedly mounted at the top of the lifting mechanism, a mounting seat is fixedly connected to the top of the damping rotating disc, a damping rotating shaft is fixedly mounted on the mounting seat, hinge blocks are hinged to the two ends of the damping rotating shaft, and cameras are fixedly mounted at the tops of the hinge blocks; positioning mechanisms are arranged on the outer sides of the moving wheels and at the bottom of the mounting frame; according to the utility model, through the arrangement of the lifting mechanism, after the device is installed, the height of the camera can be conveniently adjusted, so that the camera can monitor engineering construction conditions at different height positions, and the device is simple in structure and convenient to implement.

The utility model relates to the field of electric heaters, and discloses a PTC heater for a hairdressing tool, which comprises a first clamping plate, the top of the first clamping plate is rotatably connected with a second clamping plate, the right side of the first clamping plate is provided with a connecting assembly, and the right side of the top of the first clamping plate is fixedly connected with an elastic assembly. Mounting grooves are formed in the first clamping plate and the second clamping plate correspondingly, ceramic plates are fixedly connected to the sides, close to each other, of the first clamping plate and the second clamping plate correspondingly, rotating grooves are formed in the front sides and the rear sides of the interiors of the first clamping plate and the second clamping plate correspondingly, sleeves are fixedly connected to the interiors of the rotating grooves, and second springs are arranged in the sleeves; a cylinder sleeve is slidably connected to the interior of the sleeve, a limiting block is rotatably connected to the interior of the rotating groove, and heating bodies are arranged in the first clamping plate and the second clamping plate. According to the utility model, the PTC heater can be quickly positioned and installed, and the working efficiency of workers is improved.

The utility model belongs to the technical field of hot press templates, and particularly relates to a veneer hot press template rapid fixing device which comprises a press heat conduction plate, limiting structures are arranged on the front face, the back face, the left side and the right side of the press heat conduction plate, and fixing structures are connected to the bottom, the left side and the right side of the press heat conduction plate. Positioning structures are arranged on the front face and the back face of the press heat conduction plate, each limiting structure comprises a connecting unit and a limiting unit, each connecting unit comprises a top plate, the bottom face of each top plate is connected with a bottom plate, limiting blocks are installed in rectangular through holes, fixing plates are installed on the left side and the right side of the top ends of the limiting blocks, and threaded holes are formed in the middles of the top faces of the fixing plates. And limiting bolts are mounted in the threaded holes. According to the rapid fixing device for the veneer hot press template, the top plate and the bottom plate are utilized, and the limiting blocks, the fixing plates and the limiting bolts are fixedly connected, so that a steel template and a press heat conduction plate can be effectively positioned and connected, and the steel template and the press heat conduction plate are effectively prevented from horizontally sliding in the using process.

The utility model discloses a kind of light steel structure reinforcing devices for railway locomotive, it is related to steel structure technical field.The utility model includes fixed assembly, connecting assembly being installed on fixed assembly and crossbeam being installed on connecting assembly, fixed assembly includes the fixed frame with trapezoidal limit slot and first limit piece, connecting assembly includes the connecting frame with trapezoidal lug, second limit part and guide pillar, crossbeam is slidably matched with the crossbeam guide slot on connecting frame by guide block.The utility model realizes quick positioning by the cooperation of trapezoidal groove and lug, completes automatic locking using spring pressing effect, realizes mechanical self-locking by the linkage of guide pillar and cross rotating piece, effectively prevent vibration loosening, simultaneously, quick disassembly is realized by the movement of T-shaped slider in L-shaped limit sliding groove, ensure the reliability of connection, and improve installation and maintenance efficiency.

The utility model discloses an adjustable child remaining needle fixing elastic bandage which comprises an elastic bandage sleeve body, a plurality of air holes are formed in the bottom end of the elastic bandage sleeve body, a heat preservation belt is arranged below the air holes, one end of the heat preservation belt is fixed to the bottom end of the elastic bandage sleeve body, and the other end of the heat preservation belt is provided with a hook-and-loop fastener sticking face connected with a first hook-and-loop fastener hook face. The elastic bandage sleeve is characterized in that a first hook-and-loop fastener hook face is arranged at the bottom end of the elastic bandage sleeve body, an opening is formed in the upper portion of the elastic bandage sleeve body, and a visible layer is arranged in the opening. The use comfort of a child patient is improved, skin injury is avoided, meanwhile, the heat dissipation effect is achieved in summer through the air holes, the heat preservation effect is achieved in winter through the heat preservation belt, the use requirement is met, and the situation of the remaining needle can be conveniently observed through the visual layer, and timely treatment is facilitated.

The utility model provides a protective enclosure for protecting an ancient tree, which belongs to the technical field of protective enclosures, aims to solve the problems that audio continuously played by a loudspeaker not only aggravates noise pollution, but also easily makes tourists feel irritable and influences the touring experience of the tourists, and comprises a positioning base, the two fence bodies are perpendicularly and fixedly connected to the outer side of the top end face of the positioning base. The two movable brackets are respectively arranged at the upper ends of the two fence main bodies in a sliding manner; the mounting auxiliary mechanism is arranged on the inner side of the positioning base; the two connecting supporting plates are fixedly connected to the outer sides of the upper ends of the two fence bodies correspondingly. An audible and visual alarm is arranged on the top end face of the connecting supporting plate. The automatic alarm mechanism is arranged between the audible and visual alarm and the movable bracket on the same side; the protection effect on the ancient tree is guaranteed, meanwhile, noise pollution caused by continuous playing of the loudspeaker is greatly avoided, the touring experience of tourists is further improved, and the use effect and flexibility of the protection fence in the actual application process are further improved.

The utility model relates to a steam box door relevant technical field, concretely is an aluminium alloy steam box door of convenient assembly, including box and box door, the front side outer wall of box is connected with a plurality of connecting rods along the vertical direction equidistance, the end of connecting rod is connected with support rod, the side end of box door is connected with a plurality of and support rod inserts the installation sleeve of cooperation, the rear end of box door is detachably installed with sealing plate, the edge of sealing plate is provided with right angle edge binding structure, the rear end edge of box door is provided with back -type groove, and the front part of right angle edge binding structure is embedded into back -type groove, and the front end inner wall of box door is detachably installed with sealing sleeve, and the front end of sealing sleeve is integrally formed and is set as the strip edge binding structure of outward turning, and the strip edge binding structure surrounds the front end of box, after the box door is closed, the inner circumferential corner of strip edge binding structure and the outer circumferential corner of right angle edge binding structure are butt jointed, realize the close sealing, and box door, sealing plate and sealing sleeve are convenient to dismount and assemble, and it is convenient to maintain.