60results about How to "Any angle adjustment" patented technology

The invention relates to an orthopedics traction frame, relating to the field of medical apparatus and instruments. The orthopedics traction frame comprises a base, wherein a first lifting upright post is connected on the base, the upper end of the first lifting upright post is connected with an adjustment support rack, and a nylon post is connected on the adjustment support rack; two cross arms are also connected on the base, a rolling device is respectively connected beneath one end of each cross arm far away from the base, a leg rack sliding block and a traction sliding block are respectively arranged in each cross arm, a second locking device and a second lifting upright post are respectively connected on each leg rack sliding block, and the upper end of each second lifting upright post is respectively connected with a support leg disc; and a third locking device and a third lifting upright post are respectively connected on each traction sliding block, the upper end of each third lifting upright post is respectively connected with a horizontally distributed traction device, and one end of each traction device facing to each support leg disc is respectively connected with a leg sleeve. The orthopedics traction frame has compact structure and small volume; a blocking structure for shooting is reduced; the height, the angle and the position can be arbitrarily adjusted; and the orthopedics traction frame can be combined and matched with various types of operating tables for using.

The invention relates to a boring and milling head, mainly suitable for boring and milling machine fields such as horizontal boring and milling machine, console mode boring and milling machine and the like. The structure is that the base is flexibly connected with the machine body, the main shaft is fixed in the base and the machine body by bearings and corona dentis, one end of the main shaft is connected with a power source, the other end thereof is connected with a bevel gear I; the milling head main shaft and the main shaft are vertically arranged in the machine body, the milling head main shaft is connected with a bevel gear II which is meshed with the bevel gear I. The invention not only can realize processing surface, hole and groove in any direction, but also has easy mounting process, thus prolonging the service life of the boring and milling machine, improving processing precision and working efficiency, and the invention has simple structure, reducing production cost and being suitable for application and promotion.

The invention discloses a multi-joint flexible robot. A robot system comprises a head module 1, a head cabin section 2, a middle rotating module 3, a middle rotating module 4, a middle rotating module 5, a middle rotating module 6, a middle rotating module 7, a middle rotating module 8, a tail cabin section 9, a fixing ring 10, a fixing ring fixing screw 11, a large swinging bevel gear 12, a swing motor supporting seat fixing bolt 13, a swing motor supporting seat 14, a small swinging bevel gear 15, a swing motor 16, a middle rotating module casing 17, a rolling motor 18, a rolling motor fixing seat 19, a rolling motor fixing seat fixing bolt 20, a bearing 21, a rolling gear 22, a rolling gear ring 23, a rolling gear ring fixing ring 24, a bogie connecting shaft 25, an installing plate 26, batteries 27, a head camera 28, a light source 29 and a motion control circuit 30. An included angle formed by two rotating shafts included by each joint module of the robot is adjustable. The robot is good in joint flexibility and flexible and varied in motion.

The invention discloses a mobile paint spraying device for auto parts, which comprises a base, a lifting support rod, a movable rod, a sliding liquid storage tank, an air pump, a rotating tube, a motor, a storage battery, a support plate, a threaded rod and a movable lower support. The base is provided with a lifting support rod, a lifting support block, a movable rod and a sliding liquid storage tank. The sliding liquid storage tank is provided with a sliding part, a piston plate, a pressure relief valve and a feed inlet. The sliding liquid storage tank is provided with an air pump. The sliding part is provided with a rotating pipe, a shunt pipe and a spraying nozzle, the left wall of the sliding liquid storage tank is provided with a discharge pipe, the base is provided with a motor and a battery, the upper end of the base is provided with a support plate, and the lower end of the base is provided with a universal wheel and a threaded rod. and activities under support. The present invention cooperates with the sliding liquid storage tank through the lifting support rod and the movable rod, and at the same time, the design of the rotating pipe and the shunt pipe can facilitate the flexible adjustment of spraying, and at the same time, the threaded rod and the movable lower support are added to facilitate the movable support and stabilize the device.

The invention discloses a CFRP sheet reinforcement installation system. The CFRP sheet reinforcement installation system comprises a beam body, n+1 CFRP sheets, n fixed supports and 2n+2 anchorages, nis a positive integer greater than or equal to 1, the beam body is horizontally arranged, the fixed supports are vertically arranged on the lower surface of the beam body, two anchorages are hinged to the lower ends of the fixed supports, two hinged seats are further arranged at the two ends of the lower surface of the beam body, and the fixed supports are located between the two hinged seats. Anchorages are hinged to the two hinged seats correspondingly. CFRP sheets are arranged between the hinged seats and the adjacent fixed supports. CFRP sheets are further arranged between the two adjacent fixed supports, and the two ends of the CFRP sheets are clamped on the corresponding anchorages. The CFRP sheet reinforcement installation system has the remarkable effects that in the clamping andstretching process of the CFRP sheets, the stress of the CFRP sheets is dispersed, and the uniform stress of the CFRP sheets is ensured. Because the CFRP sheets can form any angle through hinge pieces, the CFRP sheets can be stretched along the straight line, and the shear failure of the CFRP sheets is avoided, and thus the bearing capacity of a reinforced member is improved.

The invention relates to a servo valve body assembling tooling. The servo valve body assembling tooling is characterized in that a left shaft is installed on a support on the left side, a right shaft is installed on a support on the right side and a handle assembly is installed at the outer end of the left shaft; an upper mounting plate is arranged between the supports on the left and right sides, and the left side and the right of the upper mounting plate are respectively and fixedly connected onto the left shaft and the right shaft; the bottom of a turntable is rotatably installed on the upper mounting plate; a four-pin positioning vertical plate and a vertical positioning plate are fixedly arranged on the turntable, positioning pins are installed on the positioning side surfaces of the four-pin positioning vertical plates, a vertical stud is installed at the top of the vertical positioning plate, and a pressing plate is installed on the stud; a splayed positioner is arranged below the upper mounting plate and is fixedly arranged on a main body bottom plate, and a vertical adjustable bumper and a horizontal adjustable bumper are installed on the splayed positioner; a positioning plate is arranged on the rear side of the upper mounting plate and a positioning push pin is installed in a positioning installation hole in the positioning plate through a spring assembly; holes are formed in the periphery of the turntable and positioning taper sleeves are installed in the holes. The servo valve body assembling tooling has the advantages that the angle can be freely adjusted, the tooling is convenient to operate on the whole and the visibility is proper.

The invention relates to the field of medical facilities, in particular to a full-automatic breathing bag pressing device. The device comprises a driving part, a base plate and boxes fixed to the twoends of the base plate. Two extrusion plates for extruding a breathing bag are arranged between the two boxes. A connecting rod is fixedly arranged on the extrusion plates. The end, away from the extrusion plates, of the connecting rod penetrates into the boxes and is connected with a movable plate, a stretchable reset rod is connected between the movable plate and the inner walls of the boxes, cams for pushing the movable plate are fixed to the interiors of the boxes, and the cams are driven by the driving part; the device has the advantages that by arranging a cam mechanism, the bag is automatically pressed, and labor amount of nurses is lowered; the relative positions of the cams and the movable plate are adjustable, the single-pressing oxygen output amount is adjustable, and the patient can conveniently use the device; due to the fact that the driving mechanism is low in price and simple in structure, the cost of the device is greatly lowered, and a large number of the devices canbe configured in a hospital conveniently or patients can purchase and use the device conveniently.

The invention provides a safe entertainment slipping device, and belongs to the field of sport equipment. According to the technical scheme, the device comprises a middle table and a stair part and a slipping part located on the two sides of the middle table. The device has the advantages of being novel in structure, high in safety coefficient, capable of achieving angle regulation, high in entertainment and worthy of popularization.

The invention discloses a flexible single-hole minimally invasive surgery robot. A robot system comprises multiple flexible unit bodies (numbered from 1 to 20), a flexible unit body base 21, a top tray 22, a guide rail 23, a bearing seat 24-1, a nickel-titanium alloy wire 25, a bolt 26, a lead screw 27-1, a lead screw flange nut 28-1, a flange nut seat 29-1, a bolt 30, a bearing seat 31-1, a hemispherical housing 32, a motor 33-1, a bearing seat supporting frame 34-1, a coupler 35-1, a base 36 and multiple spring sets (numbered from 37-55 and each set includes 3 springs). The included angle formed by two rotary shafts included by each joint unit of the robot is adjustable. The robot joints are good in flexibility, the flexible portions are high in hardness, and the robot is flexible and varied in movement.

The invention discloses coating equipment. The coating equipment comprises: a conveying mechanism, at least a coating cloth head and at least a stock bin, wherein the conveying mechanism comprises a conveyor belt, and a material to be coated is conveyed by the conveyor belt; the at least one coating cloth head is disposed above the conveying mechanism and arranged to directly face to the conveyorbelt, the coating cloth head comprises a first cutter head and a second cutter head rotatably connected with one end of the first cutter head, the first cutter head and the second cutter head cooperate to form a material feeding gap, and the first cutter head is provided a glaze chamber; the at least one stock bin is communicated with the glaze chamber, the stock bin is used for storing glaze andsupplying the glaze to the coating cloth head; when the second cutter head is rotated relative to the first cutter head, the other end of the second cutter head approaches to or moves away from the first cutter head so as to change the width of the material feeding gap, and the flux and flow velocity of the glaze coated to the material to be coated from the material feeding gap are controlled. Thecoating equipment provided by the invention can realize control over the thicknesses of mixed cloth and coating layers of multiple kinds of glaze.

The invention discloses a landscape pool cleaning and water filtering and purifying device. The landscape pool cleaning and water filtering and purifying device comprises a case, and an air compressor, a self-priming water pump, a filtering assembly for filtering water drained by the self-priming water pump, a backflow assembly for draining the filtered water generated by the filtering assembly back to a pool, and a filter residue collecting box for collecting filter residues generated by the filtering assembly are arranged in the case. A power source and an equipment control box are arrangedon the case, a high-pressure air sweeping gun and a dirt suction gun which can move freely are arranged outside the case, the high-pressure air sweeping gun is connected whit the air compressor, and the dirt suction gun is connected with the self-priming water pump. The device can clean the pool wall, the pool bottom, stand columns, pipelines, stone cracks, internal corners, dark corners and otherdark corners of the pool, polluted water in the pool can be filtered and purified, tiny attachements, suspended solids and other debris in the water are removed, the purified water is drained into the pool, energy saving and environmental friendliness are achieve, and the pool cleaning effect is good.

The invention discloses automatic pressing equipment with an anti-deviation structure for machining of electronic parts and components, and relates to the technical field of pressing. The automatic pressing equipment comprises a conveying belt, a first shell body and a second shell body; a base is installed at the bottom of the conveying belt; the first shell body and the second shell body are both arranged on the outer part of the conveying belt; a first electric push rod is arranged in the middle of the outer part of the base; a glue pushing device is installed on the outer part of the firstelectric push rod; and an adjusting device is arranged on the outer part of the glue pushing device. Through the arrangement of the adjusting device, a connecting shaft body can be driven to rotate under the action of a motor, and a connecting belt wound on the outer part of the connecting shaft body can be lengthened and shortened through rotation, so that the positions of gears connected with two ends of a connecting shaft can be moved, and a user can conveniently and properly adjust the position between two gears according to the size of an object during machining of the electronic parts and components; and the object can be conveniently fixed and be subjected to follow-up pressing operation through a grabbing device.

The invention provides a silicone sealant coating glue gun. The silicone sealant coating glue gun comprises a gun body and an auxiliary support mechanism on the gun body; the auxiliary support mechanism comprises a support frame, a pulley and an adjustable fixing rod; one end of the support frame is hinged on the gun body, and the pulley is installed at the other end of the support frame; one end of the adjustable fixing rod is hinged to the middle part of the support frame, and the other end of the adjustable fixing rod is installed on the gun body through a sliding adjustable assembly. The sliding adjustable assembly comprises a slide carriage and a sliding piece installed on the slide carriage; the slide carriage is arranged in the length direction of the gun body. The sliding piece is a bolt, a fixing nut is installed at the thread end of the slide carriage. The silicone sealant coating glue gun has the auxiliary support structure, therefore, positioning in the manual gluing process is achieved, construction difficulty is well reduced, glue thread quality is greatly improved, and the rework frequency and the construction cost are reduced.

The invention relates to the technical field of faucets and discloses an all-purpose telescopic self-electricity-generating hot and cold water faucet. The all-purpose telescopic self-electricity-generating hot and cold water faucet comprises a table-board. A fastening sleeve is fixedly connected in the table-board in a sleeved manner. According to the all-purpose telescopic self-electricity-generating hot and cold water faucet, by arranging a vertical sleeve, a shell pipeline, a first telescopic sleeve, a second telescopic sleeve and an electromagnet, the length of a bended pipe can be adjusted flexibly as a result of movable sleeve connecting relationships between the shell pipeline and the first telescopic sleeve and between the second telescopic sleeve and the first telescopic sleeve. As a result of the movable sleeve connecting relationship between the vertical shaft and the shell pipeline, the angle of a spray head can be adjusted randomly, so that the all-purpose telescopic self-electricity-generating hot and cold water faucet has a universal function. Meanwhile, as a result of on-off currents of the electromagnet, functions of fixing and unfixing the shell pipeline will be achieved, so that the height position of the shell pipeline can be adjusted. The adjusting range of the faucet is enlarged and meanwhile, the all-purpose telescopic self-electricity-generating hot andcold water faucet also meets demands of different occasions.

The invention discloses a device for operating of traffic monitoring. The device comprises a monitoring bracket, an underground bracket, a control device, a video recording device, a blocking device,a tracking device, a positioning device and a launching device; the underground bracket is mounted on the lower side of the monitoring bracket, and the control device is mounted on one side of the monitoring bracket; the control device comprises a control cabinet, a control door, an electromagnetic lock, a control box, a circuit board, a control chip, a wireless communication chip, a memory chip,a power switch, a displaying screen and a display driving chip, the control cabinet is mounted on one side of the monitoring bracket, and the control door is mounted on one side of the control cabinet. According to the device, the angle of the video recording device can be adjusted arbitrarily, vehicle information can be subjected to real-time video recording analysis through a built-in high-definition camera, when a suspicious vehicle is found, blocking and stopping operating can be conducted through the mounted blocking device, and the suspicious vehicle can also be subjected to tracking andpositioning operating by launching the tracking device through the built-in launching device.

The invention discloses a telescopic locking type mobile phone mounting rack, and relates to the technical field of mobile phone accessories. The telescopic locking type mobile phone mounting rack comprises a base, a universal hose is arranged on the upper surface of the base, a spiral fixing lock, a movable supporting pipe and a thickened movable supporting pipe are arranged on the outer surfaceof the universal hose, a ball chuck is arranged at the other end of the universal hose, and a mobile phone holder is arranged at the other end of the ball chuck. By arranging the spiral fixing lock, the base can be clamped, the mounting frame can be fixed to different occasions, the EVA non-slip mats are arranged to prevent slipping and resist abrasion, the clamp is protected against marks, and the direction angle of the mounting frame can be adjusted at will by arranging the universal hose; By arranging the ball chuck, the mobile phone holder can rotate by 360 degrees; by arranging the telescopic clamp and the elastic extension spring, the compatibility of the mounting rack is wider, and the mounting rack is suitable for more mobile phones and tablet personal computers of different models; And the silica gel antiskid layer is arranged on the inner side of the chuck, so that the mobile phone can be kept stable and does not slide off.

The invention discloses a mountaineering umbrella capable of freely adjusting a lighting lamp. The mountaineering umbrella capable of freely adjusting the lighting lamp comprises an umbrella stick, an umbrella handle is arranged under the umbrella stick, an umbrella head is formed at the top end of the umbrella stick, the end of the umbrella head is provided with an extending body which is in threaded connection with the end of the umbrella head, and the top end of the extending body is provided with a conical tip portion; a cavity is formed in the umbrella handle, a fixed rod is arranged in the cavity, an annular storage battery is arranged around of the fixed rod, the annular storage battery is fixedly connected with the fixed rod, a telescopic flexible rod is arranged in the fixed rod, and the end of the flexible rod is provided with the lighting lamp; the mountaineering umbrella capable of freely adjusting the lighting lamp further comprises a protecting cover which comprises a cover body with a cavity formed in the interior, a concave cavity is formed in one side of the cover body, and an infrared transmitter is arranged on the other side of the cover body; the protecting cover is arranged at the tail end of the umbrella handle in a screwing mode. According to the mountaineering umbrella capable of freely adjusting the lighting lamp, the defects in the prior art can be overcome, any angle of lighting can be adjusted, and the lighting convenience can be improved; in addition, a warning effect is achieved and used for reminding surrounding people and things.

The invention relates to a metal material surface modified treatment method. According to the metal material surface modified treatment method, a bottom plate, a conveying rack and a quenching deviceare provided; the conveying rack is arranged at the upper end of the bottom plate; the quenching device is arranged above the conveying rack; and the lower end of the quenching device is arranged on the bottom plate. By the metal material surface modified treatment method, the phenomena that a quenched steel plate is liable to deform and warp due to that the heating effect is bad when existing equipment performs quenching heating on a steel plate, the temperature is distributed non-uniformly after the surface of the steel plate is heated as well as large heat stress is generated when the steelplate is cooled can be solved; furthermore, the problem that the jet size of a flame nozzle cannot be adjusted rapidly due to that the flame nozzle has bad mounting effect and is inconvenient to change when the steel plate is subjected to quenching heating can be solved; meanwhile, the problem that the flame nozzle cannot be matched with an arc-shaped steel plate because the angle of the flame nozzle is generally arranged fixed can be solved.

The invention belongs to the technical field of welding equipment, and particularly relates to a bidirectional movable clamping plates of an automobile welding robot. The bidirectional movable clamping plate comprises a bottom adjusting assembly and a top adjusting assembly, wherein the bottom adjusting assembly comprises a square bottom plate, a rotating circular rail, a lower fixing plate, a supporting frame, a motor box, a screw rod, a sliding plate, a sliding rod and an upper fixing plate, and the rotating circular rail is fixedly connected to the top surface of the square bottom plate. Power is provided by the motor box, the sliding plate is ascended and descended, the sliding rod fixed on the sliding plate synchronously ascend and descend, the sliding rod drive the top adjusting assembly to integrally ascend and descend, the longitudinal stepless adjustment of the clamping plates is realized, the clamping plates can be used for fixing frames with different sizes, under the actionof the motor box, relative rotation can be carried out between the rotating circular rail and the lower fixing plate, so that the free adjustment of the angles of the clamping plates can be realized,the angles of the clamping plates can be adjusted randomly according to different clamping frames, the application diversity of the device is improved, and convenient use is achieved.

The invention belongs to the technical field of electronic products, and particularly provides a power bank capable of adjusting angle. The power bank comprises a power bank body; the surface of the power bank body is connected with one end of a metal hose, the other end of the metal hose is connected with a suction cup, and a groove is formed in the side face of the power bank body. When the power bank charges a mobile phone, the mobile phone can be fixed by a support, the angle can be adjusted arbitrarily, and the mobile phone can be charged and play a video at the same time, use is convenient, and the effect is remarkable.

The invention discloses an ironing board assembly and a hanging ironing machine. The ironing board assembly comprises an ironing board, a position adjusting mechanism, a sliding rod and a sliding-connection limiting component. The position adjusting mechanism comprises a support rod assembly, one end of the support rod assembly is rotatably connected with the ironing board, and the support rod assembly is provided with a first hinge part. One end of the sliding rod is rotatably connected with the ironing board. The sliding-connection limiting component is hinged to the first hinge part and provided with a sliding slot for allowing the sliding rod to penetrate through, and the sliding rod is slidingly or fixedly locked to the sliding slot. The technical scheme aims at achieving the effectsof arbitrarily adjusting the angle of the ironing board and positioning the ironing board.

The invention relates to a multifunctional image obtaining device, comprising a base, a connecting rod and a camera module. The connecting rod is a hollow structure; the lower end of the connecting rod is in fixed connection with the base; the camera module is arranged at the upper end of the connecting rod; the base is internally provided with a main control circuit board; the main control circuit board is in electric connection with the camera module, and an external device; one side of the connecting rod extends outwardly to be provided with a lamp; the lamp is in electric connection with the main control circuit board; the main control circuit board is provided with a lighting switch which extends out of the upper surface of the base. The multifunctional image obtaining device has the characteristics of simple structure, reasonable design, convenient use, space saving, strong practicality, convenient operation, high performance and great using effect; the upper portion is provided with the camera module and the light, allowing a keyboard to be seen clearly, and facilitating the usage of a computer under low light conditions; according to the invention, the body can move without restriction of wearing a headset, a sound working environment is guaranteed.

The invention discloses welding and grinding equipment for metal processing. The welding and grinding equipment for metal processing comprises a rectangular working face, a grinding head and a micro motor, wherein a hose base is mounted above the left end of the rectangular working face; a dust collecting pipe is connected above the hose base; a triangular joint is mounted on the right side of theupper end of a rotary shaft; a four-corned joint is connected to the upper end of a supporting rod; a positioning pin is mounted above the grinding head; a positioning ring is mounted at the upper end of the micro motor; an operating handle is mounted on the right side of the positioning ring; and a suction ventilator is mounted below the left end of the rectangular working face. Compared with existing common welding and grinding equipment, the welding and grinding equipment for metal processing can suck dust and metal residues generated by grinding effectively through a dust collecting pipeline to prevent the work efficiency of an operator from being affected as the working environment is polluted. Moreover, the dust and residues can be recovered and treated uniformly, and meanwhile, thegriding tool head of the equipment can be replaced anytime, so that the whole equipment can be suitable for different welding angles.

The invention discloses an operation bracket platform for building 3D printing, and a method, and relates to the technical field of 3D printing. The operation bracket platform comprises a base, and one surface of the base is fixedly connected with a hydraulic rod through a fixing block; the other end of the hydraulic rod is fixedly connected with a first circular ring; one surface of the first circular ring is fixedly connected with a second circular ring through a bolt; a straight rod is fixedly connected to one surface of the second circular ring; the other end of the straight rod is fixedlyconnected with a circular pipe; the circumferential side face of the circular pipe is fixedly connected with a transverse beam; a first sliding groove is formed in one surface of the transverse beam;and the inner surface of the first sliding groove is in transmission connection with a moving box. According to the operation bracket platform, by arranging a first fixing block and a second fixing block, the problem that existing building 3D printing equipment has height restriction; by arranging the circular pipe, the problem that the printing angle of the existing building 3D printing equipment cannot be adjusted at will is solved; and by arranging the transverse beam which can be assembled, the problem that the printing range of the existing building 3D printing equipment is small is solved.

The invention belongs to the technical field of parking systems, and particularly discloses a space-saving intelligent parking system. The system comprises a bottom plate, a support plate and a support hydraulic cylinder; one end of the support plate is hinged with the bottom of the bottom plate; one end of the support hydraulic cylinder is hinged with the side part of the bottom plate; the outputend of the support hydraulic cylinder is hinged with the lower end surface of the support plate; the bottom plate is provided with a moving unit for driving the bottom plate to move; a control systemis arranged at one end of the support plate; and the control system is used for controlling the moving unit and the support hydraulic cylinder. The system is capable of saving the space and is more beneficial for the parking of the people.

The invention discloses a milling cutter grinding fixture and belongs to the technical field of workpiece clamping. The milling cutter grinding fixture comprises a base, a sliding plate, a locating sheet, a fastening nut, adjusting disks and fixed disks, wherein the sliding plate is fixed to the base by a nut; a longitudinal groove is formed in the middle of the base; the sliding plate can make longitudinal motion along the longitudinal groove, and the position of the sliding plate is adjusted; the locating sheet which is a thin metal sheet is inserted into an upright column of the base, and has good elasticity; when a milling cutter rotates clockwise, the milling cutter can rotate smoothly due to the elasticity of the locating sheet; when the milling cutter rotates anticlockwise, the locating sheet 3 withholds a rake face of the milling cutter to prevent the milling cutter from rotating anticlockwise; a transverse groove in the middle of the sliding plate is used for adjusting the position of the locating sheet; when the milling cutter is ground, a fixed shaft of the horizontal adjusting disk is sleeved with the milling cutter, and the milling cutter is fixed by the fastening nut; the number of the adjusting disks is one pair; the number of the fixed disks is one pair; and the adjusting disks and the fixed disks can rotate relative to each other, and are used for adjusting cutter angels when different cutting faces of the milling cutter are ground. The milling cutter grinding fixture is simple in structure and easy and simple to operate.

The invention discloses a bed body rotation locking structure of a beauty bed. The structure comprises a mounting plate. A rotating disc is arranged on the rear side of the mounting plate, and a locking block is arranged in front of the rotating disc. First meshing teeth are arranged on the outer side of the rotating disc, and second meshing teeth corresponding to the first meshing teeth are arranged on the rear side of the locking block. A supporting base for supporting the locking block is arranged at the top of the mounting plate, and the locking block is in sliding connection with the supporting base. A mounting base is arranged on the front side of the mounting plate, and a connecting rod arranged in the front-back direction is slidably connected to the mounting base. The rear side of the connecting rod is connected with the locking block. A handle is hinged to the front side of the connecting rod through a first hinge nail. A connecting block is arranged on the front side of the mounting base, and connecting pieces are hinged to the top and the bottom of the connecting block correspondingly. The structure is simple, the rotating disc can be locked firmly and adjusted at any angle, so that the structure is convenient to use, low in cost, simple to operate and long in service life.