325results about How to "Realize the limit effect" patented technology

The invention relates to the technical field of pelletizers, and discloses a sodium alginate powder pelletizer which comprises a shell, a feeding mechanism, a pelletizing structure and a driving mechanism are arranged in the shell, the feeding mechanism feeds powder materials to the pelletizing structure, the pelletizing structure comprises a functional disc, a displacement rotary disc and a discharging mechanism, the displacement rotary disc is rotationally arranged between the functional disc and the discharging mechanism, and the driving mechanism drives the functional disc to rotate. A displacement table and an impact mechanism are arranged in the shell, the driving mechanism drives the displacement table and the impact mechanism to move up and down at the axis of the granulation structure, the displacement table drives the displacement turntable to rotate, and the impact mechanism impacts the powder into granules. Through cooperation of the functional disc, the displacement rotary disc and the abutting plate of the granulation structure, quantitative feeding, impact forming and rapid discharging are synchronously carried out, the granulation efficiency is improved, the impact forming function is achieved through the impact mechanism, and formed particles are more compact.

The invention discloses a part welding device for new energy automobile machining, and belongs to the field of automobile part machining, the part welding device comprises a workbench and further comprises a supporting plate, the supporting plate is fixed to one side of the top face of the workbench, a mechanical arm is fixedly installed on the top face of the supporting plate, and a laser welding head is fixedly installed at the end of the mechanical arm; according to the pipeline machining device, the multiple H-shaped fixing rods, the containing base, the laser welding head, the rotating shaft and other structures are arranged, the effect of circularly machining a pipeline is achieved, the machining efficiency of the pipeline is improved, the effect of limiting the pipeline placed in the containing base is achieved through the arrangement of an anti-falling mechanism, the stability of the pipeline rotating along with the rotating shaft and machining is kept, and the machining efficiency of the pipeline is improved. And the overturning assembly facilitates installation of the pipeline, the operation convenience of workers is improved, the function that the pipeline is overturned in the containing base is achieved through cooperation of the rotating mechanism and the anti-falling mechanism, and after the upper surface of the pipeline is welded, the unwelded part can be welded.

The utility model discloses a connecting piece for a truss reinforced concrete laminated slab. The connecting piece comprises an outer box, a first through hole is formed in the center of a top plate of the outer box; a second through hole is formed in the center of a bottom plate; the moving block comprises a horizontal part and a vertical part, the horizontal part is arranged above the top plate of the outer box, and the vertical part is vertically and movably inserted into the first through hole; the two first connecting plates are symmetrically arranged on the two sides of the lower end of the vertical part. The middle of the first rotary extrusion mechanism is rotationally connected with the inner wall of the end plate of the outer box, one end of the first rotary extrusion mechanism is rotationally connected with the extending end of the first connecting plate, and the other end of the first rotary extrusion mechanism penetrates through the side plate of the outer box and then abuts against the side wall of the prefabricated plate body; the threaded rod is vertically and movably inserted into the second through hole; the fixing nut is matched and sleeved on the outer side of the lower end extension part of the threaded rod; according to the utility model, the effect of limiting the prefabricated slab body in the horizontal direction is achieved, the situation that the horizontal position of the laminated slab deviates in the pouring process is effectively avoided, and the positioning precision of the laminated slab is effectively improved.

The invention discloses a positioning mechanism for a numerical control double-column vertical turning and milling composite lathe, and relates to the technical field of lathe positioning. The positioning mechanism for the numerical control double-column vertical turning and milling composite lathe comprises a mounting cover arranged at the top of a bottom plate, a fixing disc is fixedly inserted into the top of the mounting cover, multiple sets of positioning assemblies arranged in an array mode are arranged at the top of the fixing disc, and each set of positioning assembly comprises two symmetrically-arranged sliding grooves; and L-shaped sliding blocks are connected into the sliding grooves in a sliding mode, reset mechanisms are arranged between the sliding blocks and the sliding grooves, the side walls of the sliding blocks are connected with clamping jaws through telescopic mechanisms, the clamping jaws slide in the sliding grooves, and the sliding blocks are pushed to move through a pushing mechanism. According to the positioning mechanism for the numerical control double-column vertical turning and milling composite lathe, a plurality of groups of positioning assemblies are conveniently selected in sequence according to use requirements to center and position a workpiece, meanwhile, each clamping jaw is conveniently adjusted and controlled to keep the same clamping force, and the positioning efficiency and quality are guaranteed.

The utility model discloses a climbing device which comprises a main body steel column, a movable climbing assembly is arranged on the outer wall of the main body steel column, the movable climbing assembly comprises a wall attaching plate, the wall attaching plate is fixedly connected to one side of the main body steel column, a rack is fixedly connected to one side of the main body steel column, an assembling plate is fixedly connected to one side of a sliding block, and the assembling plate is fixedly connected to the other side of the sliding block. Mounting plates are fixedly connected to the bottom of the assembling plate, a gear is rotatably connected between the two mounting plates, a worm is fixedly connected to an output shaft of the servo motor, and a butt joint column is fixedly connected to the bottom of the main steel column. The worm gear can drive the gear to rotate, the gear can do upward linear motion along the rack, the upward climbing effect can be achieved only by connecting the two sets of main steel columns up and down in a butt joint mode and disassembling and assembling the two sets of main steel columns upwards in a circulating and reciprocating mode, and needed resource materials can be greatly reduced.

The utility model discloses a warp knitting fabric winding device which comprises a bottom plate and further comprises two vertical plates arranged at the top of the bottom plate in a bilateral symmetry mode, a winding assembly arranged between the two vertical plates, an adjusting assembly arranged between the two winding assemblies and two limiting rods arranged on the adjusting assembly in a bilateral symmetry mode. The two limiting rods are located on one side of the rolling assembly, the rolling assembly plays a role in rolling the fabric, the two limiting rods play a role in limiting and preventing deviation on the rolled fabric, the adjusting assembly can adjust the distance between the two limiting rods, and therefore the fabric with different widths can be limited.

The utility model provides a guide rail and a rubber tapping machine. The guide rail is used for enabling a vehicle-mounted frame mechanism to move on the surface of a rubber tree, and comprises a guide rail body, a first guide rail, a second guide rail and a third guide rail, the guide rail body is used for surrounding the rubber tree, and the guide rail body comprises a tooth section and a tooth-free section and has a first length; the first end part is arranged on the tooth-free section; the teeth are arranged on the partial side wall, away from the rubber tree, of the tooth section and used for allowing the vehicle-mounted frame mechanism to move along the guide rail body, and the teeth have a second length; wherein the first length is gt; a second length; the first end part comprises a limiting pre-tightening piece; the limiting pre-tightening piece is used for limiting the vehicle-mounted frame mechanism; the guide rail comprises the tooth section and the tooth-free section so that the vehicle-mounted frame mechanism can move along the guide rail, the initial position of the tool rest mechanism is adjusted on the tooth-free section, and the vehicle-mounted frame mechanism is limited through the limiting pre-tightening piece. According to the guide rail, the installation difficulty of the rubber tapping machine is reduced, the installation steps are simplified, the labor cost is greatly saved, and the working efficiency is effectively improved.

According to the technical scheme, the submarine cable conveying device is characterized in that the submarine cable conveying device comprises a base and a conveying disc arranged on the base, and the conveying disc is arranged on a mounting base; the mounting seat is rotationally positioned relative to the base; the conveying disc is rotationally arranged relative to the mounting base; a guide pipe is arranged on the base; a rotating pipe is further arranged on the base; the rotating pipe is connected with the mounting seat; the rotating pipe drives the mounting seat and the conveying disc arranged on the mounting seat to rotate under the action of external force, and the base comprises a pyramid-shaped base; a mounting notch is formed in the middle of the base; a first fixing seat and a second fixing seat are arranged on the two sides of the mounting notch respectively; the guide pipe penetrates through the first fixed seat; the rotating pipe penetrates through the second fixed seat; the end part of the guide pipe is arranged in the rotating pipe; the conveying device has the beneficial effects of being convenient to install, convenient to use and capable of being operated at the edge.

The present invention provides a spot welding limit device for the main beam of an urban railway vehicle. The present invention includes a device body and a movable baffle plate arranged on the device body, the device body can be installed on a fixed spot welding machine, the movable baffle plate can move in a predetermined path, so that it can be kept in the upper and lower gears when needed, and the device body is provided with an upper positioning block and a lower positioning block for limiting the movable baffle plate to be in the specific position of the upper and lower gears, and the upper and lower gears are respectively used for reverse welding and front welding of the main beam, and after the front and reverse sides of the main beam abut against the movable baffle plate, the welding head of the fixed spot welding machine is limited to the required spot welding size position. The present invention minimizes the volume of the device itself in the form of a single front baffle plate switching between two gears, so as to achieve the function of being able to place the present invention inside the fixed spot welding machine to limit the welding points of the main beam.

The utility model discloses a fuse with a limiting effect, which is characterized in that a shell is provided with a cavity, and the cavity is provided with an opening, a first sliding chute and a second sliding chute; protruding blocks are arranged on the two sides of the drawing piece, the protruding blocks slide in cooperation with the first sliding grooves, the drawing piece is provided with a cam part, the cam part slides in cooperation with the second sliding grooves, and the cam part is in interference fit with the opening. During the drawing action, the cam part crosses the opening and slides out of the shell; according to the structure, when the fusion tube needs to be replaced, the drawing piece performs drawing action, at the moment, the convex block moves along the first sliding groove, the cam part moves along the second sliding groove, the cam part crosses the opening and slides out of the shell, and due to the fact that the cam part is in interference fit with the opening, the fusion tube can be replaced under the action of gravity or other slight mistaken touch. Therefore, the cam part is prevented from crossing the opening to enter the cavity, so that the limiting effect is realized, and the drawing piece is prevented from entering the cavity for the second time to influence replacement of the fusion tube.

The utility model provides a bamboo board moisture balancing device, and relates to the technical field of moisture balancing devices. The bamboo board moisture balancing device comprises a frame body, a humidifier is arranged on one side of the frame body, a water tank is arranged on the other side of the frame body, a plurality of spraying holes are formed in the middle of the frame body, a supporting frame is fixed to the middle of the frame body, a stepping motor is fixed to the middle of the supporting frame, and a driving frame is fixed to the driving end of the stepping motor. A sliding frame is slidably connected to the outer surface of the driving frame, a groove is formed in the middle of the sliding frame, a rack frame is fixed to one end of the sliding frame, and a plurality of fixing rods are rotatably connected to the middle of the frame body. According to the bamboo board moisture balancing device, the stepping motor drives the driving frame to rotate, the effect of turning over a bamboo board is achieved, the effect of improving the using effect of the moisture balancing device is achieved, the handle is pulled manually to rotate, the effect of limiting the bamboo board is achieved, and the effect of improving the using stability of the moisture balancing device is achieved.

The utility model relates to the technical field of contactors, in particular to a coil structure and a contactor. The coil structure comprises at least two coil frameworks, each coil framework comprises an upper connecting part, a connecting column and a lower connecting part, the two ends of the connecting column are connected with the upper connecting part and the lower connecting part respectively, and enameled wires are wound on the peripheral side of the connecting column. The first side edge of the upper connecting part is provided with a sliding groove and a protrusion, the protrusion is matched with the sliding groove, and the protrusion on one coil framework is connected with the sliding groove in the other coil framework in an inserted mode. And the chute on one coil framework is connected with the bulge on the other coil framework in an inserting manner. The two coil frameworks are stably connected through the limiting matching mode of the sliding grooves and the protrusions, so that the stability and reliability of the coil structure are improved, power consumption is reduced, and cost is saved.

The utility model provides a glutinous rice flour sample drying device which comprises a drying box with an opening in one side, a vertical partition plate dividing an inner cavity of the drying box into a drying cavity and an installation cavity is installed in the drying box, an installation block is installed on the inner top wall of the drying cavity, an installation groove is formed in the bottom of the installation block, and an electric heating plate is installed on the inner top wall of the installation groove. A containing box is arranged below the mounting block and connected with a lifting assembly used for driving the containing box to move up and down, and when the containing box moves up to the limit position, a containing groove in the top of the containing box and the mounting groove are attached to each other and define a closed drying space. When being used for drying the glutinous rice flour, the glutinous rice flour can be overturned and stirred synchronously, so that the drying efficiency of the glutinous rice flour is improved, the uniformity of the dried glutinous rice flour is guaranteed, and the defects of the existing tray type drying equipment are avoided.

The utility model discloses a residual current protection circuit breaker, belonging to the circuit breaker field, the residual current protection circuit breaker comprises a circuit breaker body, a deflector rod and a connecting portion, the circuit breaker body is symmetrically provided with installing plates, the installing plates are fixedly provided with fixing rods, the fixing rods are sleeved with a sleeve 1, and the sleeve 1 is sleeved with a sleeve 2. A first folding plate is hinged to the first sleeve, a second folding plate is hinged to the first folding plate, a second sleeve is hinged to the second folding plate, and the end, away from the mounting plate, of the fixing rod is sleeved with a nut. According to the residual current protection circuit breaker, by arranging the mounting plate and the fixing rod, accurate positioning between the circuit breaker body and the air switch is ensured, normal linkage of the deflector rod is ensured, and reliability and safety during mounting can be improved; through the arrangement of the nut, the first sleeve and the second sleeve, installation can be conducted in a narrow space, operation is easy, the problem that parts fall off when bolts and the like are used for connection can be solved, and installation and maintenance time and cost are effectively saved.

The utility model relates to sheet metal processing technical field, concretely is a sheet metal part flatting machine for sheet metal processing, include: organism, including the object table, the surface mounting of object table has the side plate, the surface fixed coupling of side plate has the guide rod, the surface fixed coupling of guide rod has the fixed plate, the surface mounting of guide rod has the pressure plate, the surface of fixed plate has the screw rod through the screw connection, the utility model discloses the object table and the side plate are split and are connected under the action of connecting groove and connecting rod, can make the object table can remove from the inside of flatting machine, further make sheet metal part when carrying out flatting and placing can be more convenient and accurate, to avoid the direct placement sheet metal part in flatting machine leads to the situation that the staff vision is blocked by the pressure plate, simultaneously under the action of the support force that the support spring applies, can realize the clamping of the clamping block and two groups of clamping slots, further realize the limiting effect of object table movement before and after.

The application relates to a limiting device in the climbing process of a bridge high-pier climbing frame; the limiting device comprises a plurality of bearers, the bearers are rotationally connected on a middle platform of the climbing frame respectively, each bearer is perpendicular to the facade of the bridge high-pier, at least one roller is arranged on the side of the bearer close to the bridge high-pier, the roller is preferably a universal roller, the bearer is rotationally connected with the middle platform through a turnover mechanism, the bearer is fixedly connected with the turnover mechanism, the angle change between the bearer and the middle platform is realized through the movement of the turnover mechanism, and the bearers are arranged on the four edges of the middle platform; the application realizes the limiting effect of the climbing frame in the X and Y directions in the horizontal direction, strengthens the limiting function of the climbing frame, and guarantees the construction safety and construction quality.

The utility model belongs to the technical field of pouring, and particularly relates to a pouring machine discharging mechanism which comprises a pouring machine body, a discharging pipe is fixedly installed on the bottom face of the pouring machine body, and a spiral blade is rotatably installed in the discharging pipe. The driving assembly is located on the top face of the casting machine body and used for driving the discharging pipe to rotate. The first sliding groove is formed in the bottom face of the discharging pipe, a bearing is rotationally installed in the first sliding groove, an inner ring of the bearing is fixedly connected with an inner ring of the discharging pipe, and a fixing base is fixedly installed on an outer ring of the bearing; the mounting seat is arranged below the fixed seat; the hose is fixedly mounted on the mounting seat; when concrete needs to be discharged, only the motor needs to be started to drive the rotating shaft to rotate, then the spiral blade is driven to rotate, the concrete is output into the hose from the interior of the casting machine body, a worker only needs to pull the hose, and the mounting base and the fixing base rotate at the same time under the action of the bearing.

The utility model provides a paper flattening device, which relates to the technical field of paper flattening, and comprises a flattening device table, the top of the flattening device table is provided with a top frame, the top of the inner side of the top frame is provided with an electric lifting rod, the bottom of the electric lifting rod is provided with a main flattening plate, the inner side of the main flattening plate is provided with a heater, and the heater is connected with the electric lifting rod. The side face of the heater is fixedly connected with an electric heating wire. The electric heating function is provided by the heater and the electric heating wire in the flattening process, then the main flattening plate is heated, after the flattening device is heated, paper becomes softer and is more easily shaped and flattened, the rebound resilience of the paper is reduced, the flattening process is smoother and quicker, and the flattening efficiency is improved. The flattening efficiency can be improved to a certain degree, meanwhile, the fan further blows heat to the bottom face of the main flattening plate, the heating efficiency can be further improved, and the efficient flattening effect is achieved.

The improved ABS wheel speed sensor terminal crimping fixed-length cutting equipment comprises a bottom plate, an electric cabinet and a vertical plate, the electric cabinet is fixed to the bottom plate, the vertical plate is fixed to the left side of the upper end face of the bottom plate, a first air cylinder is fixed to the vertical plate, and a movable frame is fixed to the output end of the first air cylinder; a pressing plate with the end of an inclined structure is fixed to the right side of the movable frame. According to the improved ABS wheel speed sensor terminal crimping fixed-length cutting equipment, the automatic butt joint mechanism is adopted and matched with the separation guide mechanism, the automatic matching effect of a wire core and a terminal can be achieved, manual butt joint is not needed, the operation is more convenient and simpler, a linkage limiting mechanism is matched, positioning of a connecting wire can be achieved, the wire core is prevented from moving in the butt joint process, and the production efficiency is improved. And after butt joint is completed, acting force can be provided for the connecting wire through the limiting mechanism, and pulling force can be generated for the wiring terminal and the wire core through resetting of the butt joint mechanism, so that the detection effect is realized, and the stability of the wiring terminal and the wire core after crimping is determined.

The utility model relates to the technical field of fixing devices, in particular to an adjustable facility agriculture windproof net fixing device which comprises a device body, the device body comprises a mounting frame, and a clamping plate is arranged on one side of the mounting frame; an adjusting mechanism is arranged on the back of the clamping plate and comprises a supporting plate, and a fixing screw is inserted into the supporting plate. After the guide rod is rotationally connected into the threaded hole formed in the supporting frame, the sliding block is pressed to enable the supporting spring to contract, so that one end of the guide rod is inserted into the movable groove formed in the supporting plate, then the sliding block is released, and then the nut is rotationally connected to the outer surface of one end of the fixing screw rod; the supporting plate is clamped and fixed through cooperation of the nuts and the mounting frame, so that the effect of adjusting the distance between the mounting frame and the clamping plate is achieved, and the problem that if the windproof net is too thin, the fixing device cannot stably clamp and fix the windproof net is solved.

The utility model relates to the technical field of cranes, and discloses a steel wire rope hoist with a limiting structure, which comprises a steel wire rope hoist body, and the steel wire rope hoist body comprises a shell. According to the steel wire rope hoist with the limiting structure, a movable sleeve is driven to move through movement of a positioning sleeve, then a guide column is driven to move, then a bottom plate is driven to move, then a movable rod is driven to move, meanwhile, a limiting plate is driven to move through movement of the movable rod, and then a clamping column is made to move towards the inner side; and when the limiting plate reaches the position of the fixing hole, the clamping column is restored under the action of the spring, so that the effect of limiting the lowest position of the hook is achieved, and the problem that in the using process of an existing steel wire rope hoist, when the lifting stroke of a steel wire rope is too long, the hook is damaged is solved. And therefore, the phenomenon that a lifted object collides with equipment or accidentally falls off is easily caused.

The application discloses a steam turbine pipeline throttling device and relates to the technical field of throttling devices.The steam turbine pipeline throttling device comprises an adjusting unit, a connecting unit and the like.The adjusting unit comprises a connecting shell, an adjusting assembly arranged in the connecting shell, a limiting assembly arranged on one side of the adjusting assembly and a sealing ring arranged on one side of the limiting assembly.The connecting unit comprises an electromagnetic valve pipeline arranged on one side of the connecting shell and an oil motor pipeline arranged on one side of the connecting shell.The steam turbine pipeline throttling device has the beneficial effects that the throttling orifice plate in the electromagnetic valve is cancelled, a new throttling device is installed in the pipeline, the throttling device can automatically adjust according to the medium pressure in the pipeline, meanwhile, the throttling orifice diameter can be changed, different impurities can smoothly pass through the throttling device and the throttling device cannot be blocked.

The utility model relates to the technical field of heat dissipation supports, in particular to a heat dissipation support for a notebook computer. According to the technical scheme, the device comprises supporting plates and a supporting rod, the number of the supporting plates is two, the two ends of one side of each supporting plate are connected through a connecting plate, a supporting block is fixed to the upper side of one end of each supporting plate, and a limiting block is fixed to the inner side of the lower end face of each supporting plate; a first connecting block is fixed to the outer portion of the lower side of the end, away from the supporting plate, of the supporting plate, the two ends of the supporting rod are fixed to the middle of a second connecting block, the two ends of the supporting rod are movably installed in the middle of the first connecting block, and the supporting rod is in a concave shape and located on the lower side of the supporting plate; the middle of the supporting rod is sleeved with a rubber sleeve, and the supporting block and the supporting plate are in a right-angle shape. The notebook computer support has the advantages that the notebook computer can be supported and cooled, and meanwhile, the angle of the notebook computer can be conveniently adjusted.

The utility model discloses a paper roll supporting frame for paper towel processing, and relates to the field of paper roll supporting frames for paper towel processing, the paper roll supporting frame for paper towel processing comprises a base plate, a limiting assembly, rotating shafts, a paper roll, a fixing box and a tensioning assembly, and a transmission shaft is rotated through other tools, so that the transmission shaft drives the two rotating shafts to rotate through cooperation of a first worm and a first worm gear; a speed reduction motor drives two second worms to rotate through a rotating rod, so that two rotating plates are driven to synchronously rotate towards the inner side, the rotating plates drive abutting plates to move inwards, the abutting plates abut against the side face of a paper roll, the limiting effect is achieved, the paper roll is prevented from deviating in the long-time rotating process, and use is convenient; and two threaded rods are driven to rotate synchronously through cooperation of a second worm and a second worm wheel, so that a threaded sleeve drives a lifting plate to ascend and descend, the lifting plate drives an arc-shaped plate to ascend and descend through a spring and a fixing block, the arc-shaped plate drives paper to be tightened, and then the paper is tensioned.

The utility model relates to the field of metronomes, in particular to a metronome for music learning, which comprises two worms, a bottom plate and a main body, the outer surface of each worm is engaged with a worm gear, the inner wall of each worm gear is fixedly connected with a connecting piece I, the outer surface of each connecting piece I is clamped with a connecting piece II, and the connecting piece II is clamped with a connecting piece II. A worm, a worm gear, a first bevel gear, a second bevel gear, a third bevel gear, a fourth bevel gear and other components are arranged, the worm is rotated to be meshed with the worm gear, the second bevel gear is driven to rotate reversely through meshing of the first bevel gear and the second bevel gear, the second bevel gear achieves same-direction rotation of the third bevel gear through a rotating shaft, and the third bevel gear is meshed with the fourth bevel gear; and at the moment, the effect that the bevel gear fixed to one end of the worm rotates in the same direction is achieved, then the two worm wheels are driven to rotate in the same direction, the angle of the main body is driven to change through connection between the first connecting piece and the second connecting piece, the angle of the main body is conveniently adjusted, and adjustment can be conducted according to using habits of different students.

The utility model discloses a tubular pile transfer trolley, and relates to the technical field of tubular pile production, the tubular pile transfer trolley comprises a supporting table used for placing tubular piles, the top of the supporting table is provided with a placing groove, and the two sides of a groove cavity of the placing groove are arranged in a penetrating mode. And a connecting rod is fixedly connected to the outer surface of the supporting table, a fixing ring is fixedly connected to the connecting rod, a movable baffle is arranged on the fixing ring, and the baffle is used for limiting the pipe pile. When the pipe pile is transported, the end of the pipe pile is shielded through the baffle, the effect of restraining the pipe pile is achieved, in this way, when two transport vehicles work cooperatively, the pipe pile can be prevented from sliding, and therefore the effect of protecting the pipe pile is achieved.

The utility model relates to the technical field of VR (Virtual Reality) glasses, in particular to a VR glasses adjusting device, which comprises a glasses body, a VR glasses adjusting device and a VR glasses adjusting device, adjusting mechanisms are connected to the two ends of the head ring, a fixing frame is included, a first compression spring is connected into the fixing frame, a supporting plate is connected to one end of the first compression spring, and a sliding plate is connected to one side of the supporting plate. The limiting block is pulled to extrude the supporting spring to contract, so that the bottom end of the limiting block is separated from the limiting groove formed in the fixing frame, then the distance between the fixing frame and the supporting plate is adjusted, and after adjustment is completed, the limiting block is released to enable the supporting spring to support the limiting block to reset. The bottom end of the limiting block is inserted into a limiting groove formed in the fixing frame to limit the supporting plate, so that the effect of adjusting the distance between the glasses frame and the head ring is achieved, and the problem that the head is uncomfortable due to long-time wearing caused by too large elasticity of the head band is avoided.

The utility model belongs to acupoint point stimulation technical field, and disclose a kind of acupuncture acupoint point stimulation pen, including shell, the inside movable joint of shell is connected with push rod, the bottom fixed connection of push rod has elastic member, the middle part of shell inner wall is equipped with first cylindrical groove, acupuncture needle is placed in the inside of first cylindrical groove, the inside movable joint of push rod has cylinder;With the cooperation between the structure such as shell, push rod, first cylindrical groove and square block etc., to improve the stability when inserting needle, the first cylindrical groove and second cylindrical groove are respectively equipped with in the inner wall of shell and push rod, to realize the limiting effect of acupuncture needle, then, square block moves to the top of acupuncture needle under the action of external force, to shield acupuncture needle, and then make push rod descend and press acupuncture needle together by square block, to realize fast insertion needle, and the needle body part of acupuncture needle is also not easy to bend, to improve the stability of insertion needle.