31results about How to "Quick Angle Adjustment" patented technology

The utility model provides an angle-adjustable hydraulic brake type plate shearing machine, and relates to the technical field of plate shearing machines, the angle-adjustable hydraulic brake type plate shearing machine comprises a workbench and a fixing assembly, one side of the workbench is provided with a shell, one side of the shell is provided with a hydraulic machine, one side of the shell is provided with a controller, the surface of the controller is provided with a plurality of buttons, and the buttons are arranged on the surface of the controller. The workbench is provided with an adjusting device through a fixing assembly, the adjusting device comprises a containing plate, one side of the containing plate is rotationally connected with a rotating block, one side of the rotating block is fixedly connected with a fixing plate, first bolts are inserted into the two sides of the fixing plate in a threaded mode, and one side of the rotating block is fixedly connected with a connecting block. According to the hydraulic brake type plate shearing machine, the angle of a steel plate on the surface of the fixing plate can be rapidly adjusted by using the adjusting device, then a worker can conveniently conduct secondary shearing on the steel plate with the angle needing to be changed, and therefore the use efficiency of the hydraulic brake type plate shearing machine is improved.

The invention relates to the technical field of environment monitoring equipment, in particular to an environment monitoring device for power transmission and transformation projects, which comprises a bearing frame, the lower part of the bearing frame is hinged with three retractable brackets in triangular distribution, and the upper part of the bearing frame is connected with a placing table for placing an environment monitor through a horizontal adjusting mechanism; and an electric clamp for clamping and fixing the environment monitor is arranged on the placing table. The three retractable supports can be pushed to synchronously rotate outwards to be unfolded through the electric push-pull piece, the three retractable supports can also be pulled to synchronously rotate inwards to be folded, the unfolded second supporting leg and the unfolded third supporting leg can be locked through the electric plug-in piece, and after the second supporting leg and the third supporting leg are unlocked through the electric plug-in piece, the second supporting leg and the third supporting leg can be unfolded. The second supporting leg moves upwards to reset under the action of a third spring, the third supporting leg rotates upwards to be clamped back to the second supporting leg under the action of a torsional spring, operation is convenient, automatic, rapid and convenient storage can be achieved, and rapid transfer and use of the environment monitoring device are facilitated.

The utility model discloses an asphalt road crack pouring and repairing device, which relates to the technical field of road construction equipment and comprises a frame, a plurality of rollers fixedly mounted at the bottom of the frame, a handrail fixedly mounted on one side of the top of the frame, an asphalt heating box fixedly mounted on the other side of the top of the frame, and a heater fixedly mounted on one side of the asphalt heating box. A flow guide groove plate is movably installed on the other side of the asphalt heating box, a pull rod is movably installed on one side of the handrail, a scraper is arranged at the bottom of the pull rod and comprises two flow limiting plates, and the two flow limiting plates are movably connected through a first connecting block. Two flow limiting plates are connected through a first connecting block and are matched with a connecting shaft and a sleeve, rapid angle adjustment can be achieved, so that asphalt paving width adjustment is achieved, meanwhile, it can be guaranteed that asphalt is paved into cracks of a road surface by means of a deformable pushing piece, and a limiting gear and a connecting piece are arranged to be matched with a limiting groove and a second rotating groove, so that the asphalt paving width is adjusted. And the two over-current limiting plates can be quickly limited after the angles are adjusted.

The utility model discloses a magnetic suction rotating card bag support which comprises a card bag body and a magnetic suction rotating assembly arranged on the card bag body. The card bag body comprises a card storage bag, a hinge plate, a fixing plate and a shell, the card storage bag is attached to the hinge plate, the fixing plate is fixedly installed outside the hinge plate, a support installation groove is reserved in the fixing plate, the card bag body further comprises a metal support, the metal support is hinged into the support installation groove, and the metal support is connected with the shell. The magnetic rotary assembly comprises a fixed seat, a magnetic gear seat, a gear cover plate and an annular magnet, the movable metal bracket and the magnetic rotary assembly are arranged on the card bag main body, and the card bag main body is converted into a bracket, so that the original portability of the card bag main body is kept, and the stability of the card bag main body is ensured; the magnetic attraction rotating assembly serves as a movable assembly installed on the card bag body and can achieve the functions of attracting the electronic equipment and rotating and adjusting the attracted electronic equipment.

The utility model relates to the field of solid wood tables, and discloses a multifunctional adjustable solid wood table which comprises supporting legs, inserting blocks are connected to the inner walls of the supporting legs in an inserted mode, a connecting shaft is fixedly connected to the left ends of the inserting blocks, a fixing frame is rotatably connected to the outer wall of the connecting shaft, and a table plate is fixedly connected to the top end of the fixing frame. A drawer is arranged on the side wall of the table plate, a wedge block is elastically connected to the inner wall of the bottom end of the connecting shaft through a reset spring, a pressing plate is slidably connected to the outer wall of the wedge block, and a guide mechanism is arranged on the inner wall of the bottom end of the connecting shaft. According to the utility model, the inner wall of the fixing frame can continuously extrude the wedge block for insertion or separation by pressing the pressing plate, so that the table plate can be adjusted according to the use condition of a user, the angle of the table plate can be quickly adjusted, the neck and shoulder pressure caused by long-time head lowering work is reduced, and the cervical vertebra fatigue and discomfort are reduced; the practical operation is simple and convenient, and the device performance is improved to a certain extent.

The invention relates to the technical field of ship engineering, and discloses a shipborne depth finder fixing device which comprises a connecting plate, and the connecting plate is provided with a clamping piece capable of stably clamping and fixing shipboards of different ship bodies and a damping piece for protecting a depth finder. The damping piece is provided with an adjusting piece capable of adjusting the angle of the depth finder, the adjusting piece is provided with a fixing piece for clamping and fixing the depth finder, and the clamping piece comprises two first clamping plates and a clamping rod; the invention effectively solves the problems that the ship body is shocked due to the impact of waves on the water surface, the impact is transmitted to the tester, the depth finder is easy to damage after a long time, and the measured water depth value is too large when the depth finder is inclined in the use process.

The invention relates to the technical field of machining, in particular to a machining platform and a using method thereof, and discloses a machining platform which comprises a bottom plate. The positioning device comprises a plurality of telescopic assemblies, the telescopic assemblies are arranged on the bottom plate, the telescopic assemblies are oppositely arranged, the bottoms of the telescopic assemblies are connected with the bottom plate, and the telescopic assemblies are used for controlling the inclination angle of the workpiece; the positioning motors are arranged on the side face of the telescopic assembly, and the multiple positioning motors are used for driving the telescopic assembly to operate; the guide rods are arranged on the periphery of the telescopic assembly; and the mounting seat is arranged at the top of the positioning device. The problem that the angle cannot be quickly and accurately adjusted due to the fact that an existing machining platform needs to be disassembled and assembled continuously to adjust the angle when a rectangular workpiece is machined is solved, and the effect that the rectangular workpiece does not need to be disassembled and assembled frequently to adjust the angle during machining, so that the angle can be quickly and accurately adjusted is achieved.

The utility model discloses a support frame for fan installation, and relates to the field of fan installation, the support frame comprises a support seat, the outer wall of the support seat is fixedly connected with an adjusting sleeve, one side of the adjusting sleeve abuts against a first abutting block, and one side of the first abutting block abuts against a spring. According to the fan angle adjusting device, the supporting base plays a threaded role on the adjusting sleeve, when the fan angle adjusting device is used, the supporting base and the adjusting sleeve are arranged so that the spring can abut against and be tightened conveniently, angle adjusting tightness of the fan can be controlled conveniently, the usability of the fan angle adjusting device is improved, and the supporting base plays a movable role on the connecting sleeve; when the device is used, the arrangement of the supporting seat and the connecting sleeve facilitates rapid angle adjustment of the fan, the practicability of the device is improved, the connecting sleeve plays a role in moving the connecting rod, when the device is used, the arrangement of the connecting sleeve and the connecting rod facilitates adjustment according to the length of the fan, and the usability of the device is improved.

The utility model discloses a viscous damper installation device which comprises a viscous damper body, one end of a guide rod of the viscous damper body is fixedly connected with a fixed installation assembly used for a fixed side, and one end of a cylinder barrel of the viscous damper body is fixedly connected with an adjusting installation assembly used for a movable side. The adjusting and installing assembly comprises a spline shaft fixedly connected with one side of a cylinder body of the viscous damper body, the surface of the spline shaft is movably sleeved with a spline sleeve, and one side of the surface of the spline sleeve is fixedly connected with an edge plate. According to the viscous damper mounting device, by means of the arrangement of the adjusting mounting assembly, when a viscous damper body is mounted, a controllable plate can be directly rotated according to direct mounting conditions, and during actual mounting, a fixed wall and a fixed plate are not necessarily located on the same horizontal plane, so that the controllable plate can be rotated; and direct rotation of the controllable plate possibly causes displacement deviation of the viscous damper body.

The utility model relates to the technical field of steel structure processing, and discloses a component rotating device for a steel structure, which comprises a bottom bin, a rotating component is mounted in the bottom bin, a rotating block is mounted at the upper end of the rotating component, a bracket is mounted at the upper end of the rotating block, and a turnover component is mounted in the bracket; the rotating assembly comprises a first motor, a rotating rod is installed at the output end of the first motor, a first bevel gear is installed at one end of the rotating rod, a second bevel gear is installed on one side of the first bevel gear, a vertical rod is installed at the upper end of the second bevel gear, and a fixing disc is installed at the upper end of the vertical rod. And a first bolt is mounted at the upper end of the fixed disc. The steel structure component is overturned through the arranged overturning assembly, assembling and welding of a steel structure are rapidly completed through overturning, the construction time is shortened, and the steel structure component is conveniently driven to rotate by a certain angle by starting the rotating assembly.

The invention discloses a distribution line UAV-carried ice-peeling robot device, comprising a UAV system, a clamping guide mechanism, a docking mechanism, a camera mechanism and a wheeled ice-peeling mechanism; the clamping guide mechanism comprises a top cover, a V-shaped wheel and a clamping wheel assembly, the distribution line is clamped under the V-shaped wheel and is clamped and moved by the clamping wheel assembly; the UAV system is installed above the top cover through the docking mechanism, and the camera mechanism is installed on the front and rear sides of the top cover; the wheeled ice-peeling mechanism comprises a connecting top plate, a planetary gear, a main gear and a tool, the front end of the connecting top plate is installed on the top cover, the planetary gear is installed at the end of the connecting top plate, the main gear is arranged on the outside of the end of the connecting top plate and meshes with the planetary gear, and the tool is fixed on the main gear. The invention has a compact structure, can realize the deicing operation of the distribution cable in an environment without power outage, has a high degree of automation, is easy to install the cable, has high stability, is simple and convenient to operate the deicing operation, is highly efficient, and is safe and reliable.

This utility model discloses a device for extracting umbilical cord mesenchymal stem cells, belonging to the field of biomedical engineering technology. It includes a transmission gear plate, a rotating structure, an adjusting structure, and a fixing structure. The adjusting structure drives a threaded block to move along a guide rod via a threaded rod, achieving precise adjustment of the centrifuge tube's tilt angle. The rotating structure, through a locking block and locking groove, supports multi-degree-of-freedom adjustment of the tube's opening orientation. The fixing structure employs air-filled balloon technology, using the inflated balloon to clamp the tube, preventing mechanical damage and adapting to different tube sizes. The device, driven by the transmission gear plate, rotates as a whole, and combined with dual-degree-of-freedom adjustment, significantly improves cell sedimentation efficiency and ease of operation, making it suitable for the efficient separation and extraction of mesenchymal stem cells from umbilical cord, bone marrow, and other sources.

The utility model provides an equatorial telescope adjusting device, which is arranged between a support frame and a telescope and comprises a connecting seat and an elevation angle adjusting component, the connecting base is connected to the supporting frame. The elevation angle adjusting assembly comprises a first elevation angle seat, a second elevation angle seat and a fine adjusting structure, the first elevation angle seat is rotatably connected to the connecting seat, and the rotating axis of the first elevation angle seat is horizontally arranged so that the relative elevation angle between the first elevation angle seat and the connecting seat can be adjusted; the second elevation angle seat is connected with the telescope, the second elevation angle seat is rotatably connected to the first elevation angle seat, and the rotation axis of the second elevation angle seat is horizontally arranged; the two ends of the fine adjustment structure are rotatably connected to the first elevation angle seat and the second elevation angle seat respectively, and the two ends of the fine adjustment structure can be relatively close to or far away from each other to adjust the relative elevation angle between the second elevation angle seat and the first elevation angle seat, so that the angle of the telescope can be adjusted quickly and accurately, the calibration operation of the astronomical telescope is simplified, and the calibration efficiency of the astronomical telescope is improved. And the control efficiency is improved.

The utility model discloses an ultra-thin chuck with a fine adjustment assembly, and relates to the technical field of machining clamps, the ultra-thin chuck comprises chuck equipment, a clamping mechanism is arranged on one side of the chuck equipment and used for clamping different workpieces, the chuck equipment comprises the fine adjustment assembly, the fine adjustment assembly comprises a driven clamping jaw arranged on one side of the chuck equipment, and the driven clamping jaw is used for clamping the workpieces. The screw rods are driven by the servo motor to rotate, the movable block does linear motion in the cavity according to the thread transmission principle, then the driving rod is driven to push the rotary clamping plate to rotate around the fixed clamping plate, and the movable block is driven to rotate around the fixed clamping plate. Therefore, by finely adjusting the included angle between the rotary clamping plate and the fixed clamping plate, when the chuck faces workpieces with different arc-shaped surfaces or irregular shapes, the chuck can quickly respond and quickly finish angle adjustment, and by changing the clamping angle to be attached to the contour of the workpiece, the clamping adaptability and stability of the workpieces with different shapes are greatly improved.

The utility model discloses multi-angle adjustable stage sound equipment, which belongs to the technical field of stage sound equipment and comprises a supporting table, a rotating table is connected onto the supporting table through a slewing bearing, a bevel gear disc is arranged on the bottom side surface of the rotating table, and a driving motor is embedded in the side surface of the supporting table. A driving bevel gear is arranged on an output shaft of the driving motor, and the driving bevel gear is in meshed connection with a bevel gear disc; two supporting columns are arranged on the rotating table, bearing seats are arranged on the two supporting columns, rotating shafts are arranged on the bearing seats, and a sound box body is arranged between the rotating shafts; the driving motor operates to drive the bevel gear disc to rotate through the rotation of the driving bevel gear, so that the rotating table rotates, the horizontal output angle of the sound equipment body can be adjusted, and different stage effects can be matched; and the rotating motor operates to drive the driving gear to rotate, and the rotating shaft is rotated through the driven gear, so that the sound equipment body can be rotated at an angle, and different stage display effects are further matched.

The utility model discloses an anti-solidification plastic storage box for water-based ink, which relates to the technical field of plastic buckets, and comprises a fixed base, a side plate, a rotating block, a plastic bucket main body, an extension block, an insertion block, a protection block, a driving rod and a connecting rod, the outer side of the connecting rod is connected with a scraping plate, an inclined block is arranged below the scraping plate, and the bottom of the driving rod is further connected with a bottom plate. The bottom plate is located inside the inlet and outlet. The scraping plate and the inclined plate are arranged in the plastic barrel body, the inclined plate forms a funnel-shaped structure so that the discharging speed can be increased, meanwhile, the scraping plate scrapes the inner wall of the plastic barrel body and the inclined plate, water-based ink is prevented from staining the inner wall of the plastic barrel body, and the water-based ink is driven by the connecting rod to be stirred, so that the water-based ink stirring efficiency is improved. And in addition, a bottom plate is arranged at the bottom of the driving rod, an inlet and an outlet are scraped, the discharging speed is further increased, and meanwhile the equipment is made to operate in an integrated mode.

This utility model discloses a segmented retaining edge for a web mold with angle adjustment function, including a worktable and support legs installed at the four corners of the bottom of the worktable. Two sets of guide grooves are formed at the top of the worktable, and movable seats are installed on both sides of the top of the worktable. The bottom of each movable seat is slidably connected to the two sets of guide grooves via two sets of guide blocks. A rotating shaft is installed at the rear of the top of each of the two sets of movable seats, and a segmented retaining edge is rotatably connected to the outside of each of the two sets of rotating shafts. A threaded seat is installed at the opposite end of each of the two sets of movable seats, and a lead screw is internally threaded into each of the two sets of threaded seats. A throttle handle is installed at the opposite end of each of the two sets of lead screws. By installing rotatable segmented retaining edges on the two sets of movable seats, the throttle handle can be rotated to rotate the lead screw, pushing the hinge joint to move. This allows the slider to slide within the groove, achieving rapid and precise angle adjustment of the segmented retaining edge, avoiding repeated welding, improving adjustment efficiency and accuracy, and reducing the risk of deformation.

The utility model discloses a milling cutter disc for spiral bevel gear machining, which comprises a disc body, a cutter holder arranged on the front surface of the disc body, and an adjusting mechanism arranged in the disc body, the lubricating mechanism is arranged above the disc body; the fixing mechanism is arranged on the back of the tray body; wherein the angle of the milling cutter blade on the cutter holder is quickly adjusted through the adjusting mechanism. The utility model relates to the technical field of spiral bevel gear machining, in particular to a milling cutter disc for spiral bevel gear machining, through the cooperation of a gear ring, a first gear, a rotating shaft, a sliding groove, a sliding block and a driving assembly, the angle of a milling cutter is rapidly adjusted, and the problem that when the angle of a blade on the milling cutter disc is adjusted, the cutter disc cannot be rotated is solved. The problems that in the prior art, a plurality of blades are sequentially rotated to a specified angle, and then the blades are fixed again, so that the process of adjusting the angles of the blades is troublesome, a large amount of time is consumed, and the machining efficiency is seriously influenced are solved.

The utility model relates to material taking and righting equipment which comprises an installation disc, a material taking device and a righting device, the material taking device and the righting device are arranged on the installation disc, the material taking device is used for grabbing materials or placing the materials on the installation disc, and the righting device is used for adjusting the angle of the materials on the installation disc. The centralizing device comprises an air cylinder, a centralizing block and a fixing plate, the fixing plate is fixedly arranged on the mounting disc, the air cylinder is fixedly arranged on the fixing plate, and the centralizing block is arranged at the power end of the air cylinder. When the material angle needs to be adjusted, the air cylinder drives the centralizing block to move so as to push the material to be subjected to angle adjustment. By means of the design, the angle adjusting process of materials is rapid and accurate, and the efficiency of a production line is improved.

The utility model relates to mechanical processing technical field, concretely is a kind of universal angle lathe tool extension tool holder, including fixed seat and adjusting base, fixed seat is by the lathe tool holder connecting portion for being connected with lathe tool holder and the adjusting base connecting portion for being connected with adjusting base is composed, adjusting base is rotatably installed on adjusting base connecting portion, rotating drive device for driving adjusting base to rotate to adjust angle and locking device for locking adjusting base on adjusting base connecting portion after adjusting angle are provided on adjusting base connecting portion, lathe tool is fixedly installed in the bottom of adjusting base. The universal angle lathe tool extension tool holder effectively solves the problem of traditional lathe tool holder in angle adjustment efficiency, angle adjustment accuracy, stability, convenience and universality etc., provides powerful support for the high-precision, high-efficiency processing of complex parts in new energy automobile, aerospace and other fields.

The invention relates to a plug type test tool for a cable electrical test, which comprises a steering bracket, a plug system and a voltage withstanding system, and is characterized in that one end of the plug system is connected to the end part of a cable to be tested, the other end of the plug system is connected with the voltage withstanding system in a pluggable manner, and the voltage withstanding system is mounted on the steering bracket and is used for adjusting a rotation angle under the driving of the steering bracket; the plugging system comprises a pushing sleeve, a locking screw, a stress cone and a contact, the voltage-withstanding system comprises an insulating tube, a voltage-withstanding tube and a power receiving end, and the steering bracket comprises a bracket main body, a steering shaft, a transmission rod, a driven shaft, an arc-shaped gear rod, a retaining head and a hand-cranking handle. Compared with the prior art, the device has the advantages that modular design is adopted, rapid assembly and component replacement are facilitated, the device is easy to carry and deploy, the structure is stable and reliable, and the electrical test efficiency is improved.

The utility model discloses a steel structure welding support convenient to clamp, which relates to the technical related field of steel structure welding supports and structurally comprises a workbench, a track plate fixedly connected to the bottom of the inner side of the upper end face of the workbench, a fixing device slidably connected to the upper end face of the track plate and a clamping device connected with the fixing device through a sliding clamping column. A clamping column is manually moved to drive a sleeve to rotate, meanwhile, the clamping column is matched with a limiting sliding groove, angle adjustment can be rapidly carried out without refixing, a rotating handle is finely adjusted to drive a first screw to rotate, adjustment can be easily and rapidly carried out, and use is more convenient.

The utility model discloses a kind of deburring devices for bathroom metal pipe processing, its structure includes base and grinding brush roller, the upper portion of the base is provided with limit sliding slot, further include driving mechanism, clamping assembly and direction adjusting mechanism: the driving mechanism is located in limit sliding slot inside, the driving mechanism includes moving frame, the moving frame and limit sliding slot are slidably connected, rotating disc is rotationally arranged on the moving frame;The clamping assembly has two groups, and symmetrically arranged on the two sides of rotating disc;The direction adjusting mechanism is located on the upper portion of base, the direction adjusting mechanism includes rotating frame, the lower end of rotating frame and base are rotatably connected, the grinding brush roller and rotating frame are movably connected.The utility model belongs to the field of metal pipe processing, specifically refers to a kind of deburring devices for bathroom metal pipe processing.

An installation cylinder is connected to the upper portion of a base in a sliding mode, a horizontal adjusting assembly is arranged in a lower installation groove of the installation cylinder, plug pin assemblies are oppositely arranged on the two sides of an upper installation groove, an installation rod is arranged in the upper installation groove, and the installation rod is detachably connected with the installation cylinder through the plug pin assemblies. A connecting block is hinged to the upper end of the mounting rod through a first rotating shaft, a vertical adjusting assembly is arranged on the first rotating shaft, a locking assembly is arranged below the vertical adjusting assembly, and a reinforced display body is arranged at the other end of the connecting block; according to the utility model, the base is fixed on the fixed object in advance, and then the plug pin assembly in the mounting cylinder is in inserted connection with the mounting rod, so that the quick mounting and dismounting of the reinforced display body are realized; through the arrangement of the horizontal adjusting assembly and the vertical adjusting assembly, a user can conveniently adjust according to needs; and through the arrangement of the locking assembly, the vertical adjusting assembly can be locked, and angle change after the reinforced display body is adjusted is prevented.

The utility model relates to PE pipe technical field especially is a kind of PE pipe scraper assembly, including processing station, the top of processing station is provided with scraping assembly, the side of processing station is provided with collection component, by setting first motor, threaded rod, moving block, electric telescopic rod, scraper body, spring telescopic rod, second fixed ring, second motor and the cooperation use of second fixed ring, the quick fixing and angle adjustment of PE pipe have been realized, first motor drives threaded rod rotation, moving block on threaded rod moves in conjunction, and then drive electric telescopic rod and scraper body to carry out position adjustment, electric telescopic rod is telescopic, to adjust the distance between scraper body and PE pipe, ensure the scraping effect, while spring telescopic rod drives first fixed ring to move towards second fixed ring, it is convenient to clamp and fix for pipe material, second fixed ring is driven rotation by second motor, and then realized the angle adjustment of PE pipe, it is convenient for user to carry out scraping operation according to actual demand.

The utility model discloses a kind of environmental protection dust removal devices for municipal highway construction, including frame, the top of the frame is fixedly installed with clamping plate;Adjusting mechanism is arranged between the frame and clamping plate, and the inside of adjusting mechanism is provided with connecting assembly;Among them, the adjusting mechanism includes the cylinder being set to the inside of clamping plate, and the both ends of cylinder are fixedly connected with rotating shaft symmetrically, and one end of rotating shaft penetrates clamping plate and is rotatably connected between clamping plate, and the one end of rotating shaft away from cylinder is fixedly connected with round plate, and the inside of the front side of frame is screw-connected with screw rod, and one end of screw rod is rotatably connected with extrusion plate, to the effect that atomizing nozzle can be quickly installed on the top of fence, and staff can also adjust the effect of atomizing nozzle spray angle according to dust diffusion condition, to greatly improve the flexibility when device is used, improve dust-settling effect.

The utility model discloses a variable-pitch fan with increased thrust, which solves the problem of slow action caused by too small thrust when a fluid medium pushes fan blades to change angles or directions in the existing variable-pitch fan technology. A piston in the fan comprises a center circular plate, a piston sleeve I, an annular circular plate and a piston sleeve II which are concentrically arranged from the center to the outer side, in the initial state, the center circular plate and the inner end of a cylinder part are arranged in parallel, a first cavity is formed between the center circular plate and the inner end of the cylinder part, and a second cavity is formed between the annular circular plate and the inner wall of a front shell; and a medium channel through which a fluid medium passes is arranged between the first chamber and the second chamber. According to the variable-pitch fan, the first cavity is communicated with the second cavity, so that the effective surface of the piston body under the action of a fluid medium is multiplied, the thrust of the piston body is multiplied on the premise that the injection pressure of the fluid medium is certain in the variable-pitch fan, and the thrust in the angle adjusting process is effectively improved.

The utility model relates to the technical field of floor lamps, in particular to a floor lamp with a USB charging interface. A first supporting rod used for rotating is arranged at the top end of a second supporting rod. A driving assembly used for driving the rotating assembly to drive the first supporting rod to rotate is arranged on the right side of the rotating assembly, and an auxiliary assembly used for assisting the first supporting rod to rotate is arranged at the bottom end of the first supporting rod. When a mobile phone is charged by using a USB interface along with different users, the two bearing sliding blocks can be rotated, the bearing sliding blocks are locked through the locking bolts, then the charged mobile phone is placed on the supporting plate, the supporting plate can be used for containing objects, and when the rotating shaft is driven by the hand wheel to rotate, the mobile phone can be charged through the USB interface. The first supporting lever can be driven to rotate under the meshing connection of the first bevel gear and the second bevel gear, meanwhile, the auxiliary wheel can synchronously rotate around the second supporting rod when the first supporting rod rotates, and then the angle of the floor lamp can be completely and rapidly adjusted.