33results about How to "Quick retract" patented technology

The utility model discloses a lathe positioning work fixture convenient to install, and relates to the technical field of lathe fixtures, the lathe positioning work fixture comprises a base, the top of the base is fixedly provided with a fixed seat, the top of the fixed seat is fixedly provided with a first motor, and the top of the first motor is fixedly provided with a top tray; transverse moving devices are fixedly installed at the top of the top disc at equal intervals, and clamping devices are arranged at the tops of the transverse moving devices. By the adoption of the structure, the first motor is used for driving the top disc to drive the guide rail to drive the clamping device to rotate and move, then the second motor drives the lead screw to drive the adjusting and moving block to drive the clamping device to move transversely, and therefore the balance plate can be rapidly retracted and rotate circumferentially after clamping is completed; the balance plate needing to be machined can be conveniently transferred to machining stations of different devices, meanwhile, after machining is completed, the balance plate can be rapidly moved out to be replaced with another balance plate for machining, and during use, flexible adaptation is facilitated for multi-station continuous machining production.

The utility model discloses a side-mounted garbage collection and transportation manipulator which comprises a grabbing mechanism, a lifting mechanism, a transverse position adjusting mechanism, a telescopic mechanism, a visual auxiliary operation mechanism and a control mechanism. The grabbing mechanism is provided with a single-finger clamping jaw and a double-finger clamping jaw which can be adjusted independently or simultaneously, and the single-finger clamping jaw is located in a gap in the middle of the double-finger clamping jaw. A sensor is arranged on the tail end clamping jaw; the lifting mechanism drives the grabbing mechanism and the transverse position adjusting mechanism to ascend and descend, and overturning and dumping of the dustbin are achieved. The transverse position adjusting mechanism is used for adjusting the position of the grabbing mechanism in the transverse direction; the telescopic mechanism is used for driving the supporting and lifting mechanism to stretch forwards or retract backwards, and the visual auxiliary operating mechanism obtains an image at the grabbing mechanism and conveys the image to the control mechanism; and the control mechanism is provided with a controller for controlling other parts to work. The grabbing mechanism is controlled to be opened and closed more accurately, and the garbage can is prevented from being shrunken by clamping or falling off in the grabbing process; and the adjustment in the lifting or horizontal direction is more accurate.

The present invention discloses an electric push rod with a hand-turned release device, which belongs to the field of linear transmission technology, and includes a housing, a driving motor, a transmission assembly, a rotating screw and a transmission nut, and also includes: a clutch device for connecting or cutting off the power transmission between the transmission assembly and the rotating screw; a self-locking device for generating friction resistance to the rotating screw when the rotating screw is reversed; a hand-turned release device, including a release knob, a first driving member connected to the clutch device, a second driving member for connecting the self-locking device, and the release knob presenting an initial state and a fully released state through rotational motion, and from the initial state to the fully released state, the first driving member drives the clutch device to disconnect the power connection, and the second driving member drives the release torsion spring to loosen. The advantage of the present invention is that the hand-turned release device can control two devices, and the operation is smoother and more convenient.

The invention provides a beauty microneedle with a rotary adjusting gear. The beauty microneedle comprises a holding handle, a shell, a needle seat, a microneedle body and the like. An annular track is arranged on the inner side of the rear cover cap, gear grooves with different depths are formed in the track and matched with a gear shaft at the rear end of the driving rod, and the extending and retracting length of the microneedle can be accurately controlled. The spring in the channel provides retraction force for the driving rod, skin injury is avoided, and gear adjustment is stabilized. The rear cap and the holding handle are axially fixed and rotate circumferentially, so that structural stability and convenience in operation are guaranteed. The track is connected with the rear cap through a connecting strip, so that secondary use of the microneedle is prevented. And due to the arc guide surfaces between the adjacent gear grooves, the gear switching is smoother, and the operation smoothness and the structural stability are improved. And the gear mark outside the rear cover cap corresponds to the indication mark on the holding handle, so that a user can know the current gear conveniently. The beauty microneedle provides an efficient, accurate, safe and convenient skin beauty tool for a user.

The utility model discloses a large LED folding screen hydraulic-electric system which comprises an oil tank assembly, the oil tank assembly comprises an oil tank and further comprises an oil pump communicated with the oil tank, and the oil pump is respectively connected with a first reversing valve, a second reversing valve, a third reversing valve, a fourth reversing valve, a fifth reversing valve and a sixth reversing valve through a main oil way. A first reversing valve is connected with six large screen first segmented oil cylinders, a second reversing valve is connected with six large screen second segmented oil cylinders, a third reversing valve is connected with six large screen third segmented oil cylinders, a fourth reversing valve is connected with three small screen first segmented oil cylinders, a fifth reversing valve is connected with three small screen second segmented oil cylinders, and a sixth reversing valve is connected with three small screen third segmented oil cylinders. The oil pump is electrically connected with the servo motor, and the flow of the oil pump is controlled by the servo motor. By using the electro-hydraulic system, the large LED folding screen can be folded and unfolded safely and simply at the limited space such as a rooftop.

The utility model discloses a power line cutting device which comprises a device body and a take-up and pay-off mechanism, and the upper end of the device body is provided with a cutting mechanism. And the take-up and pay-off mechanism is arranged at one end of the cutting mechanism and used for taking up and paying off a power line, the take-up and pay-off mechanism comprises a winding wheel, one end of the winding wheel is connected with a line arrangement rod, a limiting mechanism is installed at one end of the device body, and the limiting mechanism comprises a sliding groove. According to the power line cutting device, the take-up and pay-off mechanism and the limiting mechanism are installed at one end of the device body, and the effects that a power line can be conveniently arranged, taken up and paid off, the power line can be conveniently and rapidly limited, and measurement is convenient are achieved.

The present invention discloses an automatic safety cone retracting and releasing vehicle, which includes a storage device, a clamping device, a transfer device, a conveying device and a retracting and releasing device. The clamping device includes an X-axis drive component installed on a support frame, a Z-axis drive component installed on the X-axis drive component, and a clamping component fixed on the Z-axis drive component. The transfer device includes a fixed table, a placing table located on both sides of the fixed table and rolling, a flipping component installed on the support frame and erecting the safety cones placed flat on the placing table, and a pushing component that pushes the erected safety cones; the conveying device includes a conveying bracket, a first pulley conveying line installed on the conveying bracket; the retracting and releasing device includes a second pulley conveying line located on the side of the first pulley conveying line. Beneficial effects: by arranging a storage device, a clamping device, a transfer device, a conveying device and a retracting and releasing device, the safety cones can be quickly and fully automatically retracted and released, and the working efficiency is high and the operation is stable.

The utility model relates to the field of garden engineering supporting frames convenient to fold and unfold, in particular to a garden engineering supporting frame convenient to fold and unfold, which comprises a fixing frame, a fixing column is rotatably connected to the inner wall of the fixing frame, a slot is formed in the outer surface of the fixing column, and two fixing boxes are fixedly connected to the outer surface of the fixing column. By rotating a fixing column, the fixing column rotates around the central axis of the connecting position of the fixing column and the fixing frame till the inserting groove and the two inserting rods are located on the same central axis, a first pulling block is pulled before the inserting groove and the two inserting rods are located on the same central axis, the first pulling block drives the corresponding inserting rods to horizontally move in the opposite direction of the fixing column along the corresponding fixing boxes, and a first spring starts to be compressed; and then a first pull block is loosened, a first spring can push a corresponding insertion rod to enter an insertion groove under the action of resilience force of the first spring, so that rapid retracting and releasing of a fixing column are completed, and the effect that the device can be rapidly retracted and fixed through rotation of the fixing column is achieved.

The utility model discloses a kind of power line winding mechanism and line winder of bamboo cutting scissors, the power line winding mechanism of bamboo cutting scissors includes mounting bracket, winding assembly, wire arrangement component and locking assembly installed on mounting bracket;Winding assembly and winding assembly are sequentially installed on mounting bracket, winding assembly includes winding limiting piece;Locking assembly controls the rotation state of winding limiting piece by mechanical limit, to realize the locking state and the unlocking state of switching winding mechanism.The utility model realizes efficient power line management by modular design: winding assembly orderly receives and releases wire, wire arrangement component prevents winding, locking assembly accurately controls the rotation state of winding assembly;In locking state, guarantee transportation stability, when unlocking, quick collection and release improve efficiency.The utility model compact structure is light and handy, adapts complex terrain, prolongs power line coverage range, reduces equipment carrying frequency, significantly improves the applicability and practicality of electric bamboo cutting scissors equipment in forestry operation.

The utility model discloses a goldfish cultivation greenhouse relates to the technical field of the greenhouse, and its technical scheme is: including the shed framework, the shed cloth is covered outside the shed framework, and the shed cloth one side is equipped with covering mechanism, covering mechanism includes two support frames, and two support frames are equipped respectively in the both sides of shed framework, and the outer surface of support frame is provided with the sliding slot, and covering mechanism includes unwinding subassembly and winding subassembly, and unwinding subassembly includes two first side plates, and two first side plates are fixedly connected with two support frames respectively, and the transmission shaft is connected through bearing between two first side plates, and one first side plate one side is equipped with the first motor fixedly, and the first motor output is fixedly connected with the transmission shaft, and the transmission shaft is coiled with the shade cloth outside, and the shade cloth one side is equipped with the connecting rod fixedly, and the beneficial effect is: effectively adjust the light and temperature condition in the greenhouse, provide a more stable, suitable growth environment for goldfish, and the operation efficiency is improved greatly through the manual regulation side shade curtain cloth quick release.

This application relates to the field of medical device technology, specifically disclosing a full-suture anchor rotator cuff fixation system, which includes an anchoring assembly comprising a first fixation member, a second fixation member, and sutures; an implanter comprising a handle, a core rod, a striking pad, and an outer tube, the outer tube being connected to the handle, the core rod being slidably inserted through the outer tube and the handle, a first end of the core rod extending from the end of the handle and connected to the striking pad, and a second end of the core rod extending from the end of the outer tube; the end of the core rod extending through the outer tube is pointed, the pointed end of the core rod having a first notch, and the core rod also having a second notch; the core rod having connecting seams communicating with the first notch and the second notch respectively; and the outer tube having a pusher block. This application enables rapid implantation of two full-suture anchors, optimizing the surgical procedure.

The invention discloses a sun shade of an inverter and a use method, and the sun shade comprises a mounting rack, a top plate fixed at the top of the mounting rack, a first connecting plate and a second connecting plate which are respectively fixed at the front side and the rear side of the bottom of the mounting rack, and an adsorption rod and a locking rod which are respectively arranged on the first connecting plate and the second connecting plate, the first connecting plate and the second connecting plate are arranged in the width direction of the mounting frame, compression bolts in threaded connection with the adsorption rod are arranged at the bottom of the adsorption rod at equal intervals, the screw end of each compression bolt is connected with a suction cup, a winding shaft is rotationally arranged in the mounting frame, a locking structure is connected to the winding shaft, and a check curtain is wound around the winding shaft. A check curtain connecting structure is arranged at the bottom end of the adsorption rod. The sunshade effect of the sunshade cover is enhanced, the sunshade cover can be flexibly disassembled and assembled, and a worker can conveniently observe an inverter liquid crystal screen.

The present invention belongs to the technical field of printing equipment, in particular to a double-sided printing machine, comprising an unwinding section, a first tensioning section, a front printing section, a back printing section, a second tensioning section and a rewinding section arranged in sequence from feeding to discharging; the front printing section comprises a front printing scraper tool and a front ink curing tool; the back printing section comprises a back printing scraper tool and a back ink curing tool; the unwinding section and the rewinding section are arranged in a mirror-image symmetry; the front printing scraper tool and the back printing scraper tool are arranged in a mirror-image symmetry. The double-sided printing machine can achieve the effects of rapid unwinding and rewinding of printed paper materials and double-sided printing, thereby improving work efficiency.

The utility model discloses a robot auxiliary climbing device which comprises a robot driving wheel and an installation plate, the installation plate is detachably installed on one side wall of the robot driving wheel, a butt joint piece is arranged on the surface of the robot driving wheel, an auxiliary installation piece is arranged on the surface of the installation plate, and a climbing mechanism is arranged on one side of the installation plate. The butt joint piece comprises two protruding blocks and two butt joint grooves. When the robot climbs the stairs, the locking spring wires are shifted to release the limiting of the telescopic rods in the guide cylinders, one ends of the two telescopic rods penetrate through the inner cavities of the through holes to move to the outside under the action of the second springs, and when the robot drives the wheels to rotate, the contact points of the telescopic rods and the stairs serve as fulcrums, so that the telescopic rods are fixed. The robot can more easily complete the climbing action, so that the climbing efficiency is improved, the ladder climbing capacity is improved, the situation that the robot slides or overturns during climbing is avoided, when the telescopic rod is not needed, the telescopic rod is pushed into the guide cylinder, and the locking spring wire fixes the telescopic rod in the guide cylinder.

The utility model discloses an assembled power distribution room flood prevention baffle belongs to flood prevention baffle technical field. This kind of assembled power distribution room flood prevention baffle, including flood control mechanism, flood control mechanism includes bottom plate, a plurality of connecting plates and top plate, the upper end of bottom plate and the top end of a plurality of connecting plate all are established with dovetail groove, the bottom of a plurality of connecting plate and top plate all are installed with dovetail block, the sliding insertion between dovetail block and dovetail groove, the both sides of dovetail groove all are embedded and install sealing strip, the both sides of dovetail block all are established with sealing groove, sealing groove and sealing strip joint, the bottom of dovetail groove is established with a plurality of movable cavities at equal intervals, the inside of movable cavity all slides and inserts and is equipped with the resistance rod, the top of resistance rod all is installed with rubber pad, the bottom of rubber pad and the bottom of dovetail block abut, the utility model discloses can effectively improve the practicality of assembled power distribution room flood prevention baffle, has higher practical value.

The utility model discloses a transformer bushing power frequency withstand voltage test device, it belongs to electric power test technical field, including the wire arrangement seat, the wire arrangement seat inside is equipped with tail cavity and a plurality of placing cavities, the wire arrangement seat one end is installed the spring, the wire arrangement seat upper slide installation has the slide frame, the slide frame one end places in the tail cavity, the slide frame other end can be on the spring, install a plurality of the clamping plate that corresponds with the placing cavity one to one in the slide frame, the wire arrangement seat upper end is installed the apron, is equipped with two convex strips on the apron, the slide frame is away from the spring one end, the wire arrangement seat and the clamping plate all are equipped with the guide groove, the apron is close to the spring one end and is equipped with the abutment, is equipped with the through slot on the wire arrangement seat and the clamping plate, is equipped with the vertical hole on the apron, places the limit pin that can be on the wire arrangement seat outer wall on the vertical hole, the utility model discloses can realize the quick winding and unwinding of the wire harness, still can realize the separate dismounting of the component.

The utility model belongs to the technical field of sickbed folding, and particularly relates to a first-aid sickbed convenient to separate and fold, which comprises a sickbed folding component, a mattress temperature adjusting component is mounted at the top of the sickbed folding component, and a fence protection component is mounted on the side of the sickbed folding component; the sickbed folding assembly comprises a left bed board, a first hinge is fixedly connected to one side of the left bed board, a right bed board is fixedly connected to the other side of the first hinge, a handle is fixedly connected to the other side of the right bed board, and a first buckle is fixedly connected to the bottom of the right bed board. A third hinge is arranged on one side of the first buckle, an adjustable supporting leg is fixedly connected to the other side of the third hinge, and a second buckle is fixedly connected to the outer wall of the adjustable supporting leg; a plurality of handles are arranged on the side, when the bed board is closed, the handles are closed along with the bed board, the medical staff can carry the bed board through the handles, and the same handle can be assembled, folded and unfolded.

The present invention relates to a wire ring return mechanism and a joint operation mechanism for a spinning frame, which enables the wire ring to return to a specified steel ring phase, has a high success rate and a simple mechanism structure. The wire ring return mechanism comprises a return screw, a driving mechanism, a memory alloy wire, a pusher and a sleeve, the return screw is connected to one end of the memory alloy wire, the other end of the memory alloy wire is connected to the pusher, the driving mechanism is adapted to the return screw, and the driving mechanism drives the return screw to move; the sleeve is located outside the memory alloy wire, and one end of the memory alloy wire extends out of the sleeve.

The utility model relates to the technical field of fishing nets, and discloses a fishing net convenient to fold and unfold, which comprises a fishing net and a support plate, the surface of the fishing net is fixedly provided with a support rod, and the fishing net convenient to fold and unfold is provided with a storage assembly and a storage rod for winding the fishing net. A supporting rod and a supporting block which are fixed to the surface of the wound fishing net make contact with the surface of a fixing block, a disc is pressed into the fixing block, a pressing rod fixed to the surface of the disc abuts against a round plate and a transverse plate and moves under supporting of a spring, a protruding block slides in a heart-shaped groove, a movable rod fixed to the surface of the protruding block is turned over on the surface of the transverse block, and therefore the fishing net is wound. When the fishing net is stored, a movable rod fixed to the surface of a transverse plate drives a clamping block to enter a clamping groove in a supporting block, a protruding block moves to a notch from a sharp opening of a heart-shaped groove, the transverse plate and the clamping block are limited, the fishing net can be rapidly stored, the situation that the fishing net is knotted in the storage process is avoided, and the follow-up fishing net storage and release speed is prevented from being affected.

The utility model relates to the technical field of withstand voltage testers, and provides a withstand voltage tester for a distribution box, which comprises a shell and a tester main body, a telescopic assembly is arranged in the tester main body and the shell, a locking assembly is arranged in the shell, a storage assembly is arranged outside the shell, and a handle is fixed at the top of the shell. The slideways are arranged on the two side surfaces in the shell, clamping frames are slidably connected to the slideways and fixedly arranged outside the tester body in a sleeving mode, first springs are connected between the inner side surface of the shell and the surface of the tester body, and a notch is formed in the top of the shell. By means of the technical scheme, the problems that an existing withstand voltage tester in the related technology is poor in protection performance and inconvenient to carry, the tester needs to be taken out of a packaging box and then operated and used every time the tester is used, and the packaging box is generally compact, tedious to take and place, quite convenient to carry and low in practicability are solved.

The invention belongs to the field of dust fall separation equipment, and discloses global adjustment type atomization dust fall equipment for building construction, which comprises a spraying box for mounting a spraying pipe and a transverse pipe, a bottom plate for supporting the spraying box and a base for connecting the bottom plate, and the spraying box and the base are connected through a supporting mechanism. Meanwhile, the local section of the supporting rod is made of a non-rigid material, and the non-rigid section of the supporting rod retracts flexibly after the medium flows out of the cavity. According to the global adjusting type atomization dust falling equipment for building construction, the design of the flexible supporting rod pieces is innovatively adopted, so that the spraying mechanism can conduct spraying dust falling operation at a certain height, meanwhile, anti-collision buffering is conveniently conducted through the flexible supporting rod pieces, and rapid storage is achieved by matching the characteristic of flexible deformation of the spraying mechanism in a pressure relief mode; moreover, the maintenance and replacement cost after damage is lower, the device is more suitable for the construction site environment with special requirements, and the device has a larger spraying dust fall range.

The present invention provides a microwave heating unit formed by comprising: a furnace body in which a fiber inlet and a fiber outlet are formed in a tube wall of a waveguide; and a microwave oscillator which guides microwaves into the waveguide. The microwave heating unit is characterized in that: continuous fibers to be heated are configured to have an inclination of an angle θ° with respect to the tube shaft of the waveguide and to travel therein; the angle θ° is 0.

This utility model provides a retractable water-retaining necker for tree and shrub pits, comprising a semi-circular water-retaining membrane, a retractable ring, a pivot, hooks, and fixing anchor points. Two semi-circular water-retaining membranes are included, with multiple fixing anchor points set along their arc edges. The semi-circular water-retaining membranes are connected to the retractable ring through these anchor points. The retractable ring includes two telescopic arms, each arranged around the arc edge of one of the two semi-circular water-retaining membranes. Each telescopic arm includes a first telescopic section, a second telescopic section, a third telescopic section, and a fourth telescopic section connected sequentially from front to back. This utility model aims to provide a retractable water-retaining necker for tree and shrub pits, allowing for rapid installation or removal of covering material according to actual on-site maintenance needs. It adapts to water retention in tree and shrub pits of different sizes, significantly saving labor costs and improving efficiency.

The utility model discloses a kind of protective net turnover mechanisms for vertical take-off and landing apron, it is related to apron safety net technical field.The utility model includes: building main body, apron and protective frame, the apron is fixedly installed in the side of building main body, the bottom end of the protective frame is rotatably connected with the side of apron by hinge.The utility model is rotatably connected with apron by hinge at protective frame bottom end, and it is rotatably connected with hinge block one and hinge block two by cooperation electric push rod, provides flexible power for the overturning of protective net;Strengthening support column is fixed with the lower surface of apron in the middle of support beam, load can be shared to avoid deformation, the end part of inclined bracing rod and strengthening support column, support beam form triangular structure, further enhance support stability;Protective frame bottom end bottom support block one is vertically arranged, provide stable supporting surface when overturning to horizontal state and cooperate with reinforcing rib to improve its strength, avoid collision damage.

The utility model provides a protective barrier for bridge construction, and belongs to the technical field of bridge construction. The protective barrier for bridge construction comprises a top plate, a connecting column is installed on one side of the bottom of the top plate, a bottom plate is installed at the bottom of the connecting column, T-shaped grooves are formed in one side of the top plate and one side of the bottom plate, T-shaped blocks are installed on the sides, away from the T-shaped grooves, of the top plate and the bottom plate, and the T-shaped grooves are matched with the T-shaped blocks; a base is mounted at the bottom of the bottom plate, a bottom groove is formed in the bottom of the base, and a first sliding plate is slidably mounted in the bottom groove of the base. According to the protective barrier for bridge construction, the assembled protective barriers abut against each other, then the T-shaped blocks on one side are inserted into the corresponding T-shaped grooves, and connection between the adjacent protective barriers is completed; the double-threaded rod is driven to rotate by rotating the first rotating button, the double-threaded rod drives the sliding block to move, the sliding block drives the connecting rod to rotate, the first sliding plate ascends and descends in the bottom groove, the bottom wheels are driven to move, and practicability is high.

The invention relates to the technical field of small aircraft folding and unfolding, in particular to a small aircraft rapid folding and unfolding device based on ship tail molded line design and a control method of the small aircraft rapid folding and unfolding device. The claw device, the camera recognition device, the pulley block and the steel wire rope are matched with the upper-layer support of the small aircraft, the aircraft carried by the ship can be rapidly retracted and released, the ship and the aircraft do not need to be connected through a mooring rope in the sailing process, the weight of the ship in the sailing process can be reduced, and the working range of the aircraft is enlarged; the navigation performance of the aircraft is improved, and the manufacturing cost of the connecting cable is saved; according to the invention, image recognition is carried out through the camera recognition device, and an automatic control system combining the pulley block and the electromagnet is adopted, so that only one person is needed for control when the aircraft is folded and unfolded, the labor cost can be greatly saved, and the folding and unfolding efficiency of the aircraft is improved, and the aircraft can be folded and unfolded for multiple times in a short time.

The utility model discloses a marine telescopic gangway support structure, including base, the base is fixed on deck, the upper portion of base is equipped with side frame and telescopic unit, telescopic unit drive side frame moves along the base, the side frame is equipped with the bottom plate on the side away from the base, the middle part of bottom plate is equipped with the opening, the opening is equipped with the ladder, the side frame is equipped with the folding unit, one end of ladder is hinged with bottom plate, the folding unit drives the other end of ladder to lift, the utility model discloses a marine telescopic gangway support structure adopts the folding unit, can fast folding ladder, and the operation is quick and convenient, and the folding speed is fast, and moreover cooperates drive unit, makes bottom plate and ladder can fast stretch out deck or retract to be located on the base on deck, avoids the ladder to be suspended in the outside of the ship side when sailing.

The invention discloses a chimney escape platform, and relates to the field of chimney escape platforms, the chimney escape platform comprises a chimney body and a guide limiting plate, the outer surface of the chimney body is fixedly provided with an escape platform main body, the upper surface of the escape platform main body is equidistantly provided with storage grooves, and the inner surfaces of the storage grooves are provided with arc-shaped guide grooves. According to the chimney escape platform, through the arrangement of a storage groove and an arc-shaped guide groove, a driving motor can drive a connecting shaft to rotate in the escape platform main body during operation, so that the connecting shaft drives a bearing ladder to rotate in the storage groove; and when an operator on the chimney finds that a fire occurs in the chimney body, the operator can turn on a driving motor through a control button, so that the bearing ladder drives the sealing cover plate to be automatically stored in a storage groove, and the sealing cover plate can be quickly stored in the storage groove. And therefore, the escape platform main body is automatically switched from a step type to a slide type.

The invention relates to the technical field of meteorological information anti-theft, and provides a meteorological data information anti-theft electronic information processor, which comprises a panel, a data interface is arranged on the panel, an anti-theft plug is filled in the data interface, and a support is fixed on the panel; in the process that the pressing rod rotates in the direction of the data interface, the sliding block can slide on the pressing rod in the direction of the ejector rod under the pushing assistance of the kidney-shaped groove on the second positioning shaft, in the initial state, the ejector rod tends to slide downwards under the elastic force of the first spring, and therefore when the head of the sliding block is inserted into the inserting opening, the sliding block can slide in the direction of the data interface. The push rod can overcome the elastic force of the first spring to slide upwards when the upper inclined surface extrudes the upper edge of the socket until the sliding block is completely inserted into the socket, and in the process, the lower inclined surface of the sliding block presses the power-off assembly, so that the power-off assembly can connect the power supply assembly to supply power to the press-touch alarm. And the press-touch alarm is in an anti-theft state.