42results about How to "Realize the height adjustment function" patented technology

The invention relates to the technical field of land surveying and mapping, and discloses a surveying and mapping positioning device for land surveying and mapping, which comprises a fixed table, a supporting table, a connecting frame and a servo motor, and further comprises a rotating table and a top seat, the connecting frame is fixedly connected to the inner side of the lower end surface of the fixed table, and the supporting table is fixedly connected to the outer side of the lower end surface of the fixed table; the servo motor is fixedly connected with the connecting frame through the rack, and the output shaft end of the servo motor is fixedly connected with the rotating table; the lifting mechanism is arranged on the lower end face of the supporting table, and the lifting mechanism is used for adjusting the height of the supporting table; the clamping mechanism is arranged between the rotating table and the fixed table; and the cleaning mechanism is arranged on the side wall of the adjusting clamping plate. Through the arrangement of the clamping mechanism, the surveying and mapping instrument can be quickly limited, so that the surveying and mapping instrument is prevented from toppling over when the surveying and mapping instrument is used in severe weather, and the safety of the surveying and mapping instrument during use is ensured.

The utility model discloses a support stabilizing mechanism of an air volume meter, which relates to the technical field of support stabilizing of air volume meters and comprises a supporting foot plate, three fixing plates are fixedly connected to the outer side of the supporting foot plate at equal intervals, arc-shaped reinforcing plates are fixedly connected among the fixing plates, each arc-shaped reinforcing plate is divided into two sections, and the arc-shaped reinforcing plates are fixedly connected among the fixing plates. Universal wheels are mounted on the lower sides of one ends of the fixing plates; fixing cylinders are fixedly connected to the upper ends of the supporting foot plates; the supporting rod and the lengthened sleeve rod are connected in a sleeved mode, the height of the supporting plate can be conveniently adjusted according to the measured height, the use convenience of the support of the air volume meter is improved, and then the function of adjusting the height of the support of the air volume meter is achieved; the support stabilizing mechanism is simple in structure and convenient to buffer in the weight supporting process, the measurement efficiency of the support of the air volume meter is improved, then the function of preventing the influence of gravity factors is achieved, and finally the phenomenon that the support stabilizing mechanism of the air volume meter is stressed or broken is avoided.

The utility model discloses a disassembling tool for a brake hub of a dump truck, and belongs to the technical field of brake hub disassembling. Comprising a movable underframe; the wheel abutting ring is installed at one end of the movable bottom frame. The reaction frame is mounted outside the wheel abutting ring in a sliding manner; the hook claw rods are hinged to the two ends of the reaction frame and elastically connected with the reaction frame through tension springs. The movable bottom frame is attached to the outer portion of the hub to be detached, limiting is conducted on the outer portion of the hooked hub of the hook claw rod, when the reaction frame provided with the hydraulic jack stretches in a limited mode, the hub limited by the wheel abutting ring in an abutting mode moves outwards under the condition that the hook claw rod, driven by the reaction frame, on the outer portion of the hooked hub is pulled to be limited, and the hub is detached. Therefore, the function of disassembling the hub is achieved, manpower is saved, labor intensity is reduced, and production safety is guaranteed.

The utility model relates to a height-adjustable SB-grade guardrail which comprises a stand column, an anti-blocking block is fixedly installed on the stand column, a wave-shaped guardrail is detachably and fixedly installed on the anti-blocking block, the anti-blocking block comprises a front side plate and a rear side plate which are symmetrically arranged, and a connecting part is arranged on the upper portion of the side, connected with the wave-shaped guardrail, of each side plate. A top plate is arranged on the side, connected with the wave-shaped guardrail, between the tops of the two side plates, a mounting cavity is formed in the side, away from the wave-shaped guardrail, of each side plate, the mounting cavity is defined by a first limiting plate, a second limiting plate and the two side plates, the first limiting plate is fixedly connected between the interiors of the two side plates, and the second limiting plate is fixedly connected between the interiors of the two side plates. The second limiting plate is fixedly connected between the sides, away from the wave-shaped guardrail, of the two side plates. Adjusting hole sets are formed in the positions, corresponding to the mounting cavities, of the stand columns, and mounting hole sets are formed in the side plates. According to the utility model, a height adjusting space is reserved for paving the road surface, the SB-level protection level is maintained, the construction is simple and convenient, the cost is low, the compatibility is strong, and the green road construction concept is met.

The utility model relates to the technical field of storage devices, and discloses an intelligent logistics storage platform which comprises a first mounting plate, and two fixing blocks are fixedly connected to the left side and the right side of the lower surface of the first mounting plate. Through the arrangement of the moving plate, the connecting rods, the first movable plate, the brake disc and the moving wheels, when the pneumatic cylinder operates, the connecting plate and the moving plate start to move upwards, the moving plate moves to drive the connecting rods, and the four connecting rods start to rotate with the left end and the right end of the moving plate as the axis respectively; the other ends of the connecting rods drive the first movable plates, so that the four first movable plates integrally start to oppositely move along the outer surface of the fixed shaft, four brake discs are not in contact with four moving wheels any more, the rotating function of the moving wheels is recovered at the moment, and an operator can integrally move the first mounting plate.

The invention discloses a lightning protection device for power supply equipment, and relates to the technical field of power supply equipment lightning protection, and the lightning protection device comprises a lightning protection mechanism, the lightning protection mechanism comprises a lightning rod, the bottom of the lightning rod is provided with a connecting piece, the bottom of the connecting piece is electrically connected with an equipment box through a wire, and the outer side of the lightning protection mechanism is provided with a protection mechanism. And a removing mechanism is arranged on the outer side of the protection mechanism. The insulation protection box covers the outer side of the equipment box, the inner side of the insulation protection box is matched with the air buffering bag through the fixing columns to provide a buffering and supporting function, the lightning rod is connected with the bearing plate through the fixing mechanism, the lightning rod is fixedly installed on the bearing plate, and the air buffering bag buffers wind power and external force borne by the lightning rod; when a heavy object such as clothes is encountered or the gravity is increased due to freezing, the lightning rod moves downwards to drive the lower air buffer bag to be in contact with the upper part of the equipment box, and the weight change of the lightning rod can be monitored constantly in cooperation with a gravity sensor.

The grinding and polishing mechanism for the office equipment comprises a grinding and polishing moving trolley, a movable seat is installed at the top end of the grinding and polishing moving trolley, and a first handle is installed at one end of the movable seat. The first handle is rotated, under the action of threaded connection, the second threaded sleeve further drives the mounting base to move upwards, the limiting supporting plate abuts against the bottom of the office table, and the grinding and polishing head is driven to release the edge of the office table; the fixing block can be rotated into the fixing groove under the action of threaded connection by rotating the hand wheel, so that the locking effect is achieved, the phenomenon that the rotation of the first handle affects the operation of the mounting base is prevented, and meanwhile, the situation that the fixing block is loosened can be prevented by mounting the anti-skid teeth.

The utility model discloses a fire hydrant device for fire-fighting early warning, and relates to the technical field of fire hydrants. The fire hydrant device for fire early warning comprises a fire hydrant body, a driving mechanism is arranged on the outer side of the fire hydrant body, a buffer structure is arranged on the outer side of the driving mechanism, the driving mechanism comprises a fixing frame, and an electric hydraulic push rod is fixedly installed on the inner wall of the fixing frame; a connecting rod is fixedly installed at the movable end of the electric hydraulic push rod, and a lifting frame is installed at the other end of the connecting rod. An electric hydraulic push rod on the inner side of the fixed frame can be used for controlling the lifting frame through a connecting rod to realize a height adjusting function, so that the total height of the fixed frame and the lifting frame is flexibly adjusted according to the actual use requirement and the idle state of the fire hydrant main body, and the use convenience of the fire hydrant is ensured; and meanwhile, safety protection in a non-use state is also guaranteed, so that an all-around protection effect is achieved.

The utility model relates to a kind of plate type support height adjustment device, including intermediate steel plate and lower pelvic cavity, the upper support plate type support of intermediate steel plate, the lower pelvic cavity has the recess matched with the intermediate steel plate, the intermediate steel plate is placed in the recess of the lower pelvic cavity, the lower pelvic cavity is provided with filling channel, one side of the filling channel is the import exposed to the outer surface of the lower pelvic cavity, the other side is the outlet extended into the recess;By filling medium in the recess is filled to filling channel, with the increase of filling medium, the intermediate steel plate is jacked up, and the height of the plate type support is adjusted.The utility model has the advantages that:it is suitable for various plate type rubber supports, including circular, rectangular, fixed support, movable support;Plate type support height adjustment function can be realized, stress condition of support is guaranteed by height adjustment, and voiding phenomenon is avoided;Simple structure, relatively small cost increase;Convenient to use, reusable, suitable for promotion.

The utility model discloses a pick-and-place cabinet for glass slides for inspection, which belongs to the technical field of glass slide storage and comprises a cabinet body, two storage boxes are connected in the cabinet body in a sliding manner, a storage box is arranged in each storage box, a plurality of glass slide bodies are arranged in each storage box, a movable plate is arranged on each storage box, and the movable plates are connected with the cabinet body in a sliding manner. A first threaded rod and a second threaded rod are rotationally connected into the storage box, a transmission belt is in transmission connection with the outside of the first threaded rod, and a sleeve plate is connected into the storage box. According to the taking and placing cabinet for the glass slides for inspection, the first threaded rod, the second threaded rod, the sliding block, the bevel gear, the bevel gear column, the motor and the transmission belt are arranged, and through cooperation of the bevel gear, the bevel gear column and the transmission belt, the height of the storage box can be adjusted in the storage box; and therefore, the glass slide bodies in the storage boxes can be conveniently taken, damage to the glass slide bodies in the taking and placing cabinet due to inclination or inversion of the taking and placing cabinet is avoided, and the phenomenon that the glass slide bodies are infected is prevented.

The utility model belongs to the technical field of cash registers, particularly relates to a cash register with a built-in print cartridge, and aims to solve the problem that the height, the position and the angle cannot be adjusted in the prior art, the cash register comprises an installation box, a first straight gear is rotatably connected in the installation box, the top of the first straight gear is fixedly connected with a protection cover, and the protection cover is fixedly connected with a print cartridge. A second straight gear is rotationally connected to one side of the interior of the mounting box, and the second straight gear is meshed with the first straight gear and used for rotating the protective cover; the adjusting assembly comprises a lead screw rotationally installed in the protective cover, the circumference of the lead screw is in threaded connection with a sliding block, and the two sides of the sliding block are both fixedly connected with fixing plates which are used for adjusting the height of the fixing plates. A cashier can adjust the height and the position of the display screen through the motor and the hand wheel according to the height and habits of the cashier, and the angle of the display screen is adjusted by rotating the bolt at the joint of the positioning plate and the connecting rod.

The movable height-adjustable operation platform tool comprises a base, a lifting platform and a hand-cranking hoist, a plurality of universal wheels are installed at the bottom of the base, two parallel sliding rails with sliding grooves are fixed to the upper portion of the base, each sliding rail and the ground are obliquely arranged at an acute angle, and a plurality of first stepping assemblies are fixed to the two sliding rails; two sections of parallel sliding blocks are fixed on the lifting platform, the two sections of sliding blocks are connected with the two sections of sliding rails in a sliding mode, a plurality of second stepping assemblies are fixed on the two sections of sliding blocks, the lifting platform is connected with the base through a gear and rack transmission mechanism, and the gear and rack transmission mechanism is driven by a hand-cranking hoist. The tool facilitates climbing operation of constructors, can improve construction safety of high-place operation, gives consideration to convenience of the constructors to get on and off a platform, is suitable for common lifting operation environments and construction operation on the outer side wall of a large pressure container, and especially suitable for occasions where protrusions are arranged below an operation interface and conventional tools cannot be close to the operation interface. And the method is more competent.

The utility model belongs to the technical field of municipal road engineering, and particularly relates to a dust falling device for municipal road engineering construction, which comprises a base, a fixing box is in bolted connection with the top of the base, a height adjusting assembly is arranged in an inner cavity of the fixing box, a box body is in bolted connection with the top of the height adjusting assembly, a rotating assembly is arranged in an inner cavity of the box body, a top plate is in bolted connection with the top of the rotating assembly, a water spraying assembly is arranged on the top of the top plate, and a water tank is in bolted connection with the right side of the top plate. Through the structural design of a first motor, a rotating shaft, a driving gear, a driven gear, a lead screw, a threaded block and a moving column, a top plate is driven to move, a communicating frame and a spray head are driven to move, the function of adjusting the height of the spray head is achieved, and therefore the spraying height is adjusted, and through the structural design of a second motor and a connecting shaft, the top plate is driven to rotate; the function of adjusting the angle of the spray head is achieved, the spraying range is widened, and the dust falling operation effect is improved.

The utility model relates to the technical field of powder feeding devices, in particular to a feeding mechanism of a mixing machine, which comprises a bottom plate, a lifting cylinder and a mixing machine body, the mixing machine body is arranged at the top of the bottom plate, and four mounting shafts are fixedly mounted on the outer wall of the peripheral side of the lifting cylinder. When the mixing machine is used, firstly, raw materials are placed in the feeding hopper and fall into the lifting barrel, the lifting motor is started to drive the lifting auger to rotate, and the raw materials are lifted to the discharging pipe and fall into the mixing machine body to be mixed; two second fixing plates are driven to synchronously and horizontally move through a sliding assembly, then two rectangular frames are driven to synchronously move, two mounting shafts are extruded through horizontal movement of the rectangular frames, and therefore the inclination angle of a lifting cylinder is adjusted, the height adjusting function of a discharging pipe is achieved, practicability is high, and practicability is high. And the device is convenient to use in actual production operation.

The utility model relates to the technical field of sand blasting machines, and discloses a sand blasting machine for milling cutter machining, which comprises a shell, the top of the shell is fixedly connected with a transmission assembly, the periphery of the transmission assembly is slidably connected with a sliding pipe, the bottom of the sliding pipe is fixedly connected with a spray head, and the interior of the shell is fixedly connected with an inner shell. A gear is rotatably connected to the interior of the inner shell, a worm gear is fixedly connected to one side of the gear, a worm is rotatably connected to the interior of the shell, the worm is rotatably connected to the middle of the shell, a rack is slidably connected to the middle of the inner shell, the worm is meshed with the worm gear, and the gear is meshed with the rack. The rack is fixedly connected to one side of the sliding pipe. According to the utility model, the worm gear, the worm, the gear and the like are matched with one another to drive the spray head to work, so that the height of the spray head can be adjusted, fine sand can be fully contacted with the surface of a milling cutter, and the cleaning effect is greatly improved.

The utility model relates to the technical field of air bubble film processing, and solves the problems that in the air bubble film conveying and cutting period, due to the fact that an air bubble film has certain plasticity and is loosened in the moving process, the cutting position deviates, cutting is not accurate, and meanwhile dust on the surface of the air bubble film influences the cutting quality. The adjustable cutting device for air bubble film processing comprises a processing table, side plates are arranged on the two sides of the processing table, rolling rods are arranged on one sides of the side plates, a moving roller is arranged on the other side of the top of the processing table, and a motor is arranged at one end of the processing table; the output end of the motor penetrates through the side plate on one side and is fixedly connected with one end of a moving roller, the other end of the moving roller is rotationally connected with the other side plate, a longitudinal sliding groove is formed in the surface of the side plate on one side, a sliding block is slidably connected into the sliding groove, a connecting block is arranged on the back face of the side plate and located below the sliding groove, and the top of the connecting block is rotationally connected with a threaded lead screw; the surface of the threaded lead screw is in threaded connection with a driving block which is fixedly connected with the back face of the sliding block.

The invention relates to the technical field of trapezoidal lead screw detection, in particular to a trapezoidal lead screw perpendicularity detection device. Comprising a rack, a self-adaptive clamping mechanism, a fine detection mechanism and a visual detection mechanism, the rack comprises a mounting assembly and a rotary driving assembly, and the mounting assembly comprises a first fixing frame, a first lifting frame, a mounting top plate, a three-jaw chuck and a mounting base; the self-adaptive clamping mechanism comprises a second lifting frame, a clamping assembly, a clamping driving assembly, an elastic locking assembly and a second linear pushing device, the elastic locking assembly is installed on the clamping assembly, and the fine detection mechanism comprises a first linear pushing device, a first installation frame, an accurate detection assembly and a horizontal fine adjustment device. The horizontal fine adjustment device is horizontally arranged at the top end of the first installation frame and is in transmission connection with the accurate detection assembly. The device realizes the positioning, clamping and detection operation of the trapezoid lead screw, meets the detection requirements of trapezoid lead screws of different specifications, and can improve the production detection efficiency in the large-scale verticality detection process.

The utility model relates to the field of drying ovens, in particular to a hot air circulating drying oven with adjustable material placing plates, which comprises a hot air circulating drying oven body, a plurality of placing plates are mounted in the middle of the hot air circulating drying oven body in a limited manner through sliding rails, and a lining frame is mounted in the middle of each placing plate in a sliding manner. A drying frame is clamped and mounted in the lining frame through mounting blocks, and a plurality of protruding blocks are arranged on the outer walls of the two sides of the drying frame. According to the device, the placement plate achieves the height adjustment function of the foundation through the arrangement of the sliding blocks and the sliding rails, meanwhile, the lining frame and the drying frame are arranged in the middle of the placement plate, the secondary adjustment function of the placement plate can be achieved in cooperation with the arrangement of the locking pieces, the installation blocks, the connecting rods, the clamping arms and other assemblies, and the adjustment flexibility of the placement plate is effectively improved; and different drying requirements are met, and the heating and drying efficiency of the drying piece is improved.

The utility model relates to a bridge supporting seat for bridge construction, and belongs to the technical field of bridge construction. The handle on the screw sleeve is rotated, so that the screw sleeve rotates around the axis of the conical base, the screw sleeve drives the supporting screw to axially move along the guide sleeve, and therefore the supporting block is driven to move, the height of the supporting block can better adapt to the height of a bridge, and the height adjusting function of the supporting block is achieved. According to the bridge supporting device, bridges of different heights can be supported, the applicability of the device is improved, the conical base can well support the supporting screw rod, the effect of being not prone to inclination is achieved, the stability of the device in the bridge supporting process is further improved, and the practicability is high. The problem that the bridge is damaged due to the fact that the supporting seat is prone to inclination in the bridge supporting process is solved.

The utility model discloses a sightseeing boat protective guard, which relates to the field of sightseeing boats, and comprises a top cross rod arranged above a bottom cross rod, and further comprises an internal thread sleeve, the upper end of the internal thread sleeve is fixedly connected with a rotating rod, the upper end of the rotating rod is fixedly connected with a rotating block, and the middle position of the upper surface of the bottom cross rod is fixedly connected with an external thread vertical rod. Limiting groove columns are fixedly connected to the positions, close to the two ends, of the upper surface of the bottom transverse rod, limiting rods are fixedly connected to the positions, close to the two ends, of the lower surface of the top transverse rod, a rotating hole is formed in the middle of the upper surface of the top transverse rod in a penetrating mode, a rotating rod is rotationally connected with the top transverse rod through the rotating hole, and a rotating block is located in the middle of the upper side of the top transverse rod. Compared with the prior art, the height adjusting device has the advantages that the height adjusting function of the protective fence is achieved so that sightseeing personnel with the largest height can be blocked, the safety of the sightseeing process is guaranteed, the convenient and fast disassembling function of the protective fence is achieved, and a faulty handrail on the protective fence can be disassembled and replaced conveniently.

The invention discloses extrusion blow molding production equipment for plastic film processing and a processing method, and belongs to the technical field of plastic film processing. Comprising a bottom plate and further comprises an extruding machine, the extruding machine is arranged on one side of the top end of the bottom plate, a mold for a film pipe blank is arranged on one side of the extruding machine, and a lifting structure comprises a transmission lead screw rotationally connected into a film frame, a connecting housing arranged on the outer side of the film frame in a sleeving mode and connected with a movable base and a transmission assembly arranged at the top end of the transmission lead screw; the servo motor drives the four transmission lead screws to rotate synchronously through the main transmission wheel and the driving wheel, so that the moving seat drives the moving plate to move up and down through the connecting housing to adjust the height of the moving plate, film guiding or maintenance is facilitated, the height adjusting function is achieved, height reduction in the initial stage of film production is facilitated, and production efficiency is improved. And meanwhile, the height is reduced, so that a worker can conveniently carry out daily maintenance on the device.

The utility model provides an adjustable steel bar rack, which belongs to the technical field of tunnel construction, and comprises a bottom frame, moving wheels, a steel frame, a top frame fixed at the top end of the bottom frame, and stretching structures arranged at the two sides of the steel frame, the lifting structure comprises a connecting sleeve fixed to one side of the bottom frame, a supporting plate fixed to the bottom end of the supporting stand column and locking assemblies arranged on the two sides of the supporting stand column. The hydraulic cylinder stretches to push the steel frame to move upwards, the overall height of the device is adjusted, the double-output-shaft motor is started to drive the screw to rotate, and the position of the connecting sleeve is locked, so that the height adjusting function of the device is achieved, the device can adapt to variable clearance heights of different mileage sections of a high-speed rail tunnel, construction feasibility is guaranteed, and construction universality is improved; the rack is prevented from being frequently replaced or transformed due to tunnel height difference, and cost and time are saved.

The invention provides an intelligent cooker stirring shovel easy to disassemble and assemble and a using method thereof, and relates to the technical field of stirring shovels, the intelligent cooker stirring shovel easy to disassemble and assemble comprises a connecting piece, a motor and a stirring shovel body, the connecting piece is connected with an external cooker, an output block is installed at the output end of the motor, and an empty groove is formed in the bottom of the output block; a hollow groove is formed in the base, bayonets are symmetrically formed in the two sides of the hollow groove, an insertion block is inserted into the hollow groove, a through opening is formed in the insertion block, insertion plates are inserted into the bayonets and the through opening, an end block is installed at one end of each insertion plate, and end holes are symmetrically formed in the end, away from the end block, of each insertion plate. According to the stir-frying machine stirring shovel, by arranging the structures of the empty groove, the clamping opening, the inserting block, the through opening, the inserting plate, the end block, the end hole, the elastic pin, the pressure spring and the pressing plate, the installation steps of a traditional stir-frying machine stirring shovel can be simplified, threaded connection is not needed any more, then the situation that screwing is needed in the installation process is avoided, installation is prevented from being interfered, and operation is simpler and more convenient.

The utility model discloses an information bulletin display device for constructional engineering management, which comprises a supporting plate, a limiting block is arranged at the lower end of the supporting plate, the information bulletin display device further comprises a motor arranged at the right end of an adjusting assembly, and the adjusting assembly comprises an adjusting frame arranged on the lower side of the limiting block; the base is arranged outside the motor, and a connecting block is arranged on the inner side of the supporting column; and the display cabinet is arranged on the inner side of the limiting frame. According to the information announcement display device for constructional engineering management, a motor and an adjusting assembly are additionally arranged, an adjusting frame, a guide block and a limiting block rotate, and the adjusting frame deviates in angle, so that the vertical distance between a supporting plate and a base is changed; the height adjusting function of the information announcement display device for constructional engineering management is achieved, meanwhile, a limiting frame and a positioning block are additionally arranged, and orderly arrangement of information tables for constructional engineering management by the information announcement display device is conveniently achieved.

The utility model discloses a portable displayer support which comprises a supporting plate, four supporting rods are symmetrically arranged on the lower portion of the supporting plate, the inner surface of the supporting plate is rotationally connected with an angle adjusting mechanism used for adjusting the positions of the supporting rods, and the four supporting rods are all fixedly connected with the angle adjusting mechanism. A mounting plate is arranged above the supporting plate, and the inner surface, located below the mounting plate, of the supporting plate is rotationally connected with a height adjusting mechanism; the function of synchronously adjusting the positions of the multiple supporting rods can be achieved, when the device is carried, the multiple supporting rods can be synchronously rotated to the position below the supporting plate, the containing space of the device is reduced, then the device is convenient to carry, the function of adjusting the height of the mounting plate can be achieved, a displayer on the mounting plate can be moved to the proper height, and then the displayer is convenient to use; and when the device is carried, the device placement space can be reduced, so that the device is convenient to carry.

The utility model discloses a water level monitor which comprises a fixed base, a shell and a connecting plate are sequentially arranged above the fixed base, a guide rod is arranged above the connecting plate, the top end of the connecting plate is fixedly connected with an external connecting seat, and a rotating table is arranged at the top end in the external connecting seat in a penetrating mode. The top end of the rotating table is fixedly connected with the bottom end of a guide rod, fastening bolts are arranged at the front end and the rear end of the external connection base in a penetrating mode, and first rotary knobs are fixedly connected to the front ends of the fastening bolts. The water level monitor is provided with the rotating table, the external connecting base, the fastening bolt, the guide rod, the supporting plate and the vertical frame, the cross rod can be inspected and maintained after being rotated to a safe position, workers do not need to climb to a dangerous area, and the problems that the water level monitor is far away, regular inspection and maintenance are inconvenient, and the work efficiency is high are solved. And a worker needs to consume a large amount of time to climb, and certain potential safety hazards exist in the climbing process.

The utility model belongs to the technical field of sighting telescope, and particularly relates to a sighting telescope with a waterproof sealing structure, which comprises a sighting telescope body and a box body, a machine frame is installed at the center of the surface of the sighting telescope body, a battery is arranged on the front face of the machine frame, a protection assembly for protecting the battery is arranged on the surface of the sighting telescope body, an adjusting assembly for adjusting the height of the sighting telescope body is arranged in an inner cavity of the box body, and a mounting plate is connected to the bottom of the box body in a bolted mode. Through the structural design of a rotating shaft, a driving gear, a lead screw, a threaded block, a moving plate, a moving column and a lantern ring, a user drives the sighting telescope body to move by rotating a handle, the function of adjusting the height of the sighting telescope body is achieved, and the height of the sighting telescope body can be rapidly adjusted according to the use condition; through the structural design of the first protective shell, the second protective shell, the sealing gasket and the first sealing ring, the waterproof sealing performance of the first protective shell and the second protective shell is improved, and water is prevented from entering the battery.

The utility model provides a replaceable lightning protection device for a communication base station, which belongs to the technical field of lightning rods, and comprises a rod body, a lifting structure inserted in the bottom end of the rod body, a bottom plate in threaded connection with the bottom end of the screw rod, and an extension structure arranged in the rod body and in threaded connection with the bottom end of the screw rod. First side rods are rotationally connected to the outer sides of the stretching structures, the needle body is installed at the top ends of the stretching structures, and second side rods are fixed to the outer side of the needle body. According to the device, the rotating ring is rotated to drive the lead screw to rotate, so that when the movable seat drives the first side rod to descend through the sleeve shell, the transmission rod pulls the first side rod to approach the rod body, and therefore, the spine folding function of the device is realized, the first side rod is conveniently folded in the carrying process, and the space occupied by the device is reduced; and meanwhile, the first side rods are prevented from being collided and damaged, and the functionality of the device is enhanced.

The utility model relates to the technical field of pouring formworks, in particular to a concrete pavement pouring formwork which comprises a formwork body used for limiting concrete, a lifting plate for increasing the height of the formwork is connected to the upper end of the formwork body in a sliding mode, and a lifting assembly for adjusting the height of the lifting plate is arranged at the upper end of the formwork body. The lifting assembly is composed of two height adjusting rods which are vertically arranged, the two height adjusting rods are arranged on the two sides of the lifting plate respectively, the two height adjusting rods are in threaded connection with the lifting plate and are in left-handed rotation, and a flatness adjusting assembly used for enabling the surface of the formwork body to recover flatness is arranged at the lower end of the interior of the formwork body. Compared with the prior art, the problems that due to the fact that the height of a traditional pouring formwork cannot be adjusted, concrete pavements with different heights need to be replaced when being poured, and due to the fact that a deformation adjusting structure is not arranged, the structural strength of the formwork and the pouring quality of the concrete pavements are reduced are solved.

The utility model discloses a food inspection sample processing and crushing device which comprises a bottom plate, two fixing plates are symmetrically and fixedly connected to the upper surface of the bottom plate, a supporting plate is slidably connected to the inner side surfaces of the two fixing plates, a lifting mechanism is fixedly connected to one side surface of one fixing plate, and the other side surface of the other fixing plate is fixedly connected to the other side surface of the other fixing plate. The lifting mechanism is fixedly connected with the supporting plate, and the outer side surface of the supporting plate is fixedly connected with a fixing mechanism. According to the device, the height of the supporting plate can be adjusted, samples in the crushing cylinders with different heights can be crushed, when the device is transported, the size of the device can be reduced, the placement space of the device is reduced, then the device is convenient to transport, and the function of aligning and fixing the crushing cylinders can be achieved; and the crushing barrel is located in the center between the two fixing plates and is kept stable, and then crushing treatment of food samples in the crushing barrel is facilitated.