384results about How to "Prevent accidental fall off" patented technology

A connector assembly comprises a plug and a socket. The plug comprises a body, the socket is provided with a storage groove, the body is inserted in the storage groove so that the plug is electrically connected with the socket, the plug also comprises an anti-dropping part and an elastic part, the anti-dropping part comprises a pressing portion, a locking portion and an abutting plate, the pressing portion is connected with the locking portion by the abutting plate, the body is provided with an accommodating cavity, both the abutting plate and the elastic part are accommodated in the accommodating cavity, and the elastic part is elastically abutted between the abutting plate and the body; the locking portion extends out of the body under the action of elasticity of the elastic part; the socket is further provided with a locking groove communicated with the storage groove; and after the abutting plate compresses the elastic part and drives the locking portion to retract into the body by pressing the pressing portion, the plug is inserted in the storage groove until the locking portion and the locking groove are fastened so as to lock the body on the socket. The invention further provides the plug used for the connector assembly.

The invention discloses a manual knife for preventing a blade from falling off by an accident, and belongs to a manual tool. The blade of the existing three-stage manual knife possibly falls off from a tool bit in a folded state, resulting in potential safety hazards. A control element acting along with state change of the tool bit is assembled on the tool bit of the manual knife; the control element is at a forbidden position when the tool bit deviates from the unfolded state; the control element at the forbidden position forbids a blade lock to act, so that the blade lock cannot be operated to unlock the blade; the control element is at an unlocked position when the tool bit is in an unfolded state; and the control element at the unlocked position releases prohibition to the blade lock, so that the blade lock can be operated to unlock the blade. Thus, the situation that the blade is prevented from falling off by the accident in the folded state can be avoided; the potential safety hazards are removed, and the blade cannot drop or be lost.

The invention relates to a picard carriage and relative carriage cover. The inventive carriage cover elements comprise an upper surface layer, a lower surface layer, a strengthened layer and a periphery layer. Wherein, the upper surface layer, the lower surface layer and the periphery layer all made from glass steel material; the strengthened layer is the glass steel layer with beehive structural elements; said four layers can form the glass steel integrated element with beehive structural elements. The inventive carriage comprises a carriage body, a cover, connecting elements and supporting elements. Wherein, the connecting elements are inserted elements; the cover via the inserted elements and supporting elements is connected on the carriage, while the cover can rotate relative to the carriage body. The invention can prevent the matters inside the carriage from outside space, and reduce the driving resistance, with simple structure and long service life.

The invention discloses an improved cup. The improved cup comprises a cup base connected with a cup body through a circuit, and a connection head used for being in matched connection with the cup base; the left end face of the cup body is provided with a handle, and the right end face of the cup body is provided with a water outlet; the cup base comprises a plug cavity with a downward opening, anda first slide cavity and a second slide cavity are correspondingly formed in the left and right end walls of the plug cavity respectively; a power lead cavity is formed in the cup base and located above the plug cavity, and a containing cavity is formed in the cup base and located above the second slide cavity. The improved cup is simple in overall structure and safe and reliable in operation, and ensures the life safety of users; besides, the whole device is easy and convenient to operate, the connection head can be locked and prevented from falling accidentally, and the service life is prolonged.

A plunger-type pneumatic quick-change joint, including an air inlet sleeve, a sliding sleeve spring, an air inlet sealing ring, a valve core, a locking steel ball, a moving sliding sleeve, a sliding sleeve limiter, an air outlet sealing ring and a valve core spring, A pressure relief groove is provided on the inner hole wall of the rear guide hole of the air intake joint along the circumference, and a steel ball hole is provided on the outer circle at the right end of the matching section. The locking steel ball is placed in the steel ball hole, and the air intake joint, The axial sliding limit of the valve core is controlled by the locking steel ball between the valve core and the sliding sleeve. Before the bleed air plug is inserted, the locking steel ball is located in the locking cavity; The stroke groove can ensure the non-shearing contact between the outer circle and the intake sealing ring of the valve core during the opening and closing process, ensuring that the valve core can be closed, opened easily, and has a long service life. Compared with existing similar products, it has simple structure, small radial dimension, long service life, easy insertion of bleed air plug, small pressure loss, and safe and reliable operation.

The invention discloses a new type of robot equipment, which includes a power transmission frame and a power transmission terminal cooperating with the power transmission frame. The bottom surface of the power transmission frame is provided with a receiving slot with a notch facing downwards, and the midpoint of the top wall of the receiving slot is provided with a downwardly extending electric connecting post, and an electric connecting slot is provided on the bottom end of the electric connecting post, and the electric connecting post The outer side of the end face of the column bottom is provided with a first hypotenuse. The overall structure of the present invention is simple, and the fixing of the power transmission terminal is safe and reliable. The fixing operation of the power transmission terminal is convenient and convenient, and when the locking block is locked and unlocked, the power transmission terminal It will not be energized, and the power-on and power-off operations of the transmission terminal are realized through the power control provided by two drives, thus effectively avoiding electric shock accidents when plugging and unplugging the transmission terminal, and ensuring the safety of the staff.

The invention discloses a plunger pneumatic quick-change coupler. The plunger pneumatic quick-change coupler comprises an air inlet connecting sleeve, a sliding sleeve spring, an air inlet sealing ring, a valve core, a locking steel ball, a mobile sliding sleeve, a sliding sleeve limit component, an air outlet sealing ring and a valve core spring, wherein a pressure release groove is axially formed on an inner hole wall of a matching section of the air inlet connecting sleeve; a locking steel ball hole is formed on the excircle of the right end of the matching section; the locking steel ball is arranged in the locking steel ball hole; the relative axial slide limit among the air inlet connecting sleeve, the valve core and the mobile sliding sleeve is controlled by the locking steel ball; and before an air entraining plug (Plug) is inserted, the locking steel ball is positioned in a locking cavity. A smooth grinding undercut is formed on a matching excircle of the valve core, so shear-free contact between the matching excircle and the air inlet sealing ring in the opening and closing process of the valve core can be ensured, the valve core can be ensured to be closed and opened without difficulty, and the service life of the plunger pneumatic quick-change coupler is long. Compared with like products, the plunger pneumatic quick-change coupler has a simple structure and smaller radial size, and the air entraining plug (Plug) is easy to insert and cannot fall off accidentally, so the plunger pneumatic quick-change coupler is safe and reliable.

The invention discloses a cable-stayed flexible photovoltaic bracket unit and a photovoltaic bracket. The bracket unit comprises two oppositely arranged upright posts, a stabilization cable and a plurality of main diagonal cables are arranged between the two upright posts, and the two ends of the stabilization cable are respectively connected to the lower parts of the upright posts on the corresponding ends; all main diagonal cables are divided into two groups, each group at least comprises one main diagonal cable, the upper ends of all main diagonal cables of each group are connected to the upper parts of the upright posts on the corresponding ends, the lower ends of the two groups of main diagonal cables are connected with a cross beam, and connection points are uniformly arranged alongthe length direction of the cross beam, and the cross beam is horizontally arranged; and a plurality of slings are equidistantly arranged between the cross beam and the stabilization cable along the vertical direction, the upper ends of all slings are connected with the cross beam, and the lower ends of all slings are connected with the stabilization cable. By adoption of an optimized self-balancing prestressed cable system, the vertical stiffness of the structure is improved, and the vibration problem under the wind load is solved, thereby significantly improving the spanning capability of the photovoltaic bracket, further reducing the floor space, and having relatively high adaptability on complex terrain areas.

The invention discloses a destacking machine. The destacking machine comprises a main engine, a stack feeding frame, a stacking frame, an empty bottle conveyor, a base, a steering device, a guide railpair, a pick-and-place device, a lifting device and a balancing mechanism. The pick-and-place device is capable of grabbing multiple empty bottles and a tray of the same layer at a time simultaneously. After the pick-and-place device is elevated by a certain height along the guide rail pair, the pick-and-place device turns right by 90 degrees and descends to the position of an unloading disk of the stacking frame, the tray is unloaded; and after being elevated by a certain height again, the pick-and-place device rotates leftwards by 180 degrees; after descending to the position of the empty bottle conveyer, the empty bottles are unloaded; and a grabbing working cycle is completed. According to the destacking machine, manpower is replaced, and the purpose of grabbing and unloading the bottles is achieved; the working efficiency is high; operation maintenance is simple; the maintenance cost is low; and the problems that stacked empty bottles and trays need to be placed separately, completion of the working procedure depends on manpower, manual labor intensity is high, the labor force cost is high, and the production efficiency is low are expected to be solved.

The invention relates to a power socket for broadband equipment capable of effectively preventing mis-pull-out. The invention relates to the technical field of broadband access. The equipment comprises a conductive seat, an electromagnet is fixedly connected to the middle of the conductive seat, first springs which are evenly distributed are fixedly connected to the positions, close to the two sides of the electromagnet, of the inner wall of the conductive seat, clamping blocks are fixedly connected to the outer sides of the first springs, first magnetic blocks are fixedly connected to the middles of the clamping blocks, and resistors electrically connected with the electromagnet are fixedly connected to the inner wall of the bottom of the conductive seat. According to the power socket forbroadband equipment, the clamping blocks and the necks are matched for use, when the plug is plugged with the conductive seat, the clamping blocks extend outwards under the magnetic repulsion effectof the electromagnet and the magnetic block and are clamped with the necks, and the plug and the conductive seat are relatively fixed together, so that the effect of limiting the movement of the plugis achieved, the effect of preventing mis-pulling is achieved, the plug is effectively prevented from accidentally falling off, the stable use of the central switch is ensured, and the practicabilityand the stability are improved.

To provide an electrical connector for circuit boards having lock fittings designed to reliably prevent damage to lock portions and inadvertent removal of mating connectors. The lock fittings (30) have lock plate portions (35) that extend along the inner surface of the lateral walls of the housing and are retained in place on said lateral walls, or which extend along the inner surface of the end walls and are retained in place on said end walls; upright face-reinforcing plate portions (31) that extend along the upright faces of the protruding wall of the housing facing said lock plate portions (35) and are retained in place on said protruding wall; and connecting bottom portions (34) that extend along the bottom wall and connect the bottom wall-adjacent end portions of the lock plate portions (35) and the upright face-reinforcing plate portions (31).

The invention relates to an adhesive used for a brake shoe for urban rail transit and its manufacturing method. The raw materials of the adhesive consist of the following components by weight percent: 25-55 of modified resin, 25-55 of butyronitrile powder, 0.1-10 of aramid pulp, 5-20 of graphite, and 0-5 of iron oxide red. The manufacturing method includes: adding the raw materials into a high speed plough harrow feed mixer for mixing, controlling the reaction temperature ranging from room temperature to 140DEG C, then conducting joint pressing so as to obtain the adhesive. Compared with prior art, the method of the invention can improve the performance of a friction material and increase the safety factor. The prepared adhesive can be guaranteed to be compatible with glue and the friction material body. During application of the adhesive, the brake shoe is added with a breaking elongation layer, which can increase energy absorption, decrease buffering, reduce brake shoe cracks causedby frequent braking, prevent accidental drop of the brake shoe, mitigate the fatigue strength of a brake shoe back, and prolong the service life of the brake shoe.

The invention relates to a water purifier (1). The water purifier (1) comprises a water purifier body (11), a water purifier shell (12) and at least one filter core (15), wherein the water purifier shell (12) is used for accommodating the water purifier body (11); the at least one filter core (15) is arranged in a space formed between the water purifier body (11) and the water purifier shell (12). The water purifier (1) is characterized in that the at least one filter core (15) is mounted on a filter core mounting plate (13), and the filter core mounting plate (13) is detachably mounted on the water purifier body (11). The water purifier (1) disclosed by the invention has the advantage that the safety during the replacement of the filter core (15) can be improved.

The invention discloses a spring ejecting type anti-drop infusion set needle. The spring ejecting type anti-drop infusion set needle comprises an infusion set needle body and an anti-drop mechanism, wherein the anti-drop mechanism is arranged on the infusion set needle body, and the lower end of the infusion set needle body is provided with an anti-leakage elastic washer. It can be effectively avoided that the infusion set needle drops accidentally, and children or comatose restless patients are prevented from pulling out the infusion set needle; the waste of drugs or blood is avoided; environmental contamination is prevented; it is avoided that due to needle drop, the workload of medical staff is increased and patients or family members are scared and worried; the waste of health resources is reduced; the occurrence of medical care accidents and the infusion cost are reduced.

The invention discloses new energy automobile charging equipment. The new energy automobile charging equipment comprises a charging part arranged at the left upper end of a charging pile body and a charging gun connected with the charging part in a matched mode. A bottom plate is fixedly installed on the bottom end surface of the charging pile body. A cavity with a downward opening is arranged onthe bottom end surface of the charging part. An electricity connecting rod extending downwards is arranged in the middle of the top end wall of the cavity. An electricity connecting cavity is arrangedon the bottom end surface of the electricity connecting rod. A first slope surface is arranged on the outer side of the bottom end surface of the electricity connecting rod. The new energy automobilecharging equipment is simple in overall structure, fixation of the charging gun is safe and reliable, the fixing operation on the charging gun is convenient and rapid, the charging gun is not electrified during locking and unlocking of a locking block, power on and off operations on the charging gun are realized through two drivers providing power for control, and therefore an electric shock accident when the charging gun is plugged and pulled is effectively avoided, and the life safety of workers is guaranteed.

The invention discloses an optical lens ultrasonic cleaning jig based on elastic deformation and sliding extrusion. The optical lens ultrasonic cleaning jig structurally comprises control switches, abase, a lens placement box, an ultrasonic cleaner and a handle. An elastic plate is made of a plastic material and forms a certain oblique angle with a groove base frame. When a lens slides down, inwards concave folding of return springs can be offset, instant impact between the lens and an elastic film during contact is reduced, the lens slides on the elastic film, a sliding unloading wheel and alinkage block offset a spring rod jointly to slide down by extruding the elastic film through the lens, a small rolling wheel is connected to the bottom of the elastic film, thus, the lower end of the elastic film can be expanded outwards in cooperation with extrusion of the lens, the lens is further prevented from directly falling to the bottom due to the acceleration of gravity, after the lensis stopped, the linkage block slides down by a certain distance, meanwhile, a movable chain and an auxiliary pulley rotate anticlockwise together, a pulling rope between the auxiliary pulley and the elastic plate is loosened, the elastic plate is extruded by the return springs to extend outwards, the top of the lens can be clamped, the lens is prevented from accidentally falling down, and the lenstends to be stable through elastic deformation of the elastic film and does not swing left and right at the same time.

The invention provides a cover arranged at the main body of an electrical connection box, which comprises a wall part for holding a first wiring harness and a second wiring harness connected with the electrical connection box. A first holding part is extended from the wall part in a derivative direction along the first wiring harness; the first wiring harness can be maintained outside of a holding component. The second wiring harness can be maintained at the wall part by a second holding part.

A structure securely attaches a component to an opening portion in a plate-shaped member without stripping or turning over the member. Each of a pair of mount members includes a first engagement portion engaged with a rear surface of the plate-shaped member and a second engagement portion engaged with the component. The component includes projecting portions to be fitted between the mount members, thus the component can be fixed against coming off by engagement of the second engagement portion and the component. The projecting portions inhibit the mount members engaged with the opening portion from moving, thereby preventing the mount members from coming off the opening portion. Since the fitting member is fitted between the second engagement portions, the fitting member inhibits the second engagement portions from moving to come closer to each other, and from disengagement from the component, thereby more securely preventing the component from coming off

The invention relates to a self-locking plug and an installation method thereof. The self-locking plug can be locked in a jack frame. The plug comprises a plug frame, a pair of clamping hooks, a sliding block, an elastic piece, and a locking mechanism. The clamping hooks that are hinged to the plug frame oppositely can rotate around the hinged parts, so that the clamping hooks partially protrude out of the side part of the plug frame to be clamped with the jack frame; the sliding block arranged on the plug frame in a sliding mode can slide to the position between the pair of clamping hooks along the plug frame and push the pair of clamping hooks to rotate around the hinged positions of the clamping hooks. The elastic piece arranged on the plug frame is connected with the sliding block, andthe elastic piece supports the sliding block to the position between the pair of clamping hooks and is abutted against the clamping hooks; the locking mechanism is rotatably arranged on the plug frame, the sliding block is limited to the side, away from the pair of clamping hooks, of the plug frame through the locking mechanism, and the elastic piece is compressed to generate an elastic force; the jack frame drives the locking mechanism to rotate to unlock the sliding block, the sliding block slides to the position between the pair of clamping hooks under the action of the elastic piece, thepair of clamping hooks are pushed to rotate around the hinged positions so that part of the clamping hooks can protrude out of the side portion of the plug frame to be clamped with the jack frame, andthe sliding block extrudes the pair of clamping hooks to be partially pressed on the jack frame.

The invention relates to the technical field of medicinal minimally invasive instruments, in particular to a system for taking an endoscope specimen. The system comprises a taking tool mechanism and a taking executing mechanism. The taking tool mechanism comprises a quick-change connector, a quick-change device sleeve, a pushing rod and an outer sleeve. One end of the pushing rod is connected with the quick-change device sleeve and the quick-change connector, and the pushing rod and the outer side of the quick-change device sleeve are arranged inside the outer sleeve in a sleeved mode; the taking executing mechanism comprises a taking outer sleeve, a taking bag and a cross joint, and the taking bag and the cross joint are arranged inside the taking outer sleeve in a sleeved mode; the quick-change connector of the quick-change device sleeve is connected with the cross joint of the taking bag, and the outer sleeve is connected with the taking outer sleeve. The taking tool mechanism can be repeatedly sterilized for usage, so that the using cost of equipment is substantially lowered. Positioning grooves are formed in the outer side of the quick-change device sleeve, and positioning bosses are arranged on the outer sleeve and clamped to the positioning grooves. The outer sleeve is positioned, the pushing rod and the quick-change device sleeve are effectively prevented from axially moving when the system is used, and therefore a doctor can operate conveniently.

The invention discloses a stranding machine and a device thereof for preventing a wire coil from dropping accidentally. The device comprises a clamping device, a driving cylinder, a control device, a locking component and a single-acting cylinder, wherein the clamping device is used for clamping the wire coil; the driving cylinder is used for driving the clamping device to clamp and release the wire coil; the control device is used for controlling extension and retraction of a telescopic rod of the driving cylinder, so as to control the clamping device to clamp and release the wire coil; the locking component is used for locking the clamping device to prevent the clamping device from releasing the wire coil; and the single-acting cylinder is used for driving the locking component to lock or unlock the clamping device. The device of the stranding machine for preventing the wire coil from dropping accidentally can effectively prevent accidental drop of the wire coil in operation, thereby avoiding danger.

The invention discloses a method and system for replacing a power battery of an electric car. A car body connecting device comprises a power unit for supplying driving force, a transmission device for supplying rotating torque and changing the transmission direction, racks and locking devices. The transmission device is a transition steering gear and toothed rod mechanism. A transmission gear at one end of the transition steering gear and toothed rod mechanism is connected with the power unit. A driving gear at the other end of the transition steering gear and toothed rod mechanism is meshed with one end of each rack. The other ends of the racks are fixedly connected with the locking devices. The locking devices are inserted type special-shaped taper pin mechanisms. The power unit supplies the driving force to drive the transmission device to drive the racks to retreat and go forward relatively so that the locking devices, namely, the inserted type special-shaped taper pin mechanisms at the tail ends of the racks can be separated from and connected with a power battery box. The system ensures that the power battery installed on a car body of the electric car can be safely, conveniently and quickly replaced.

The invention discloses a multifunctional integrated safety helmet. The multifunctional integrated safety helmet comprises: an installation box is arranged on the inner wall of a helmet shell; an intelligent monitoring device is arranged in the installation box; the intelligent monitoring device takes a mobile phone chip as the core; the mobile phone chip transmits obtained images, videos, position information and gas content data to a remote control platform; the remote control platform judges whether toxic, harmful, flammable and explosive gas and the like exist or not in a field condition,and gives work instructions to command a worker to perform field construction; the worker realizes a call with the remote control centre through a loudspeaker and a microphone; image, video, call, location and security monitoring functions in a working field are integrated together through the mobile phone chip; the multifunctional integrated effect of the safety helmet is realized; a manager monitors the working site condition in real time through the remote control platform; the safety helmet plays roles of a supervisor and a manager; a safety responsible person can see the wearing state ofeach staff at the background of the remote control platform; real-time monitoring of the working site is realized; the safety of the field is evaluated in advance; potential safety hazards of construction are reduced; and accidents in dangerous places can be effectively avoided.

The invention discloses an anion air purifier. The anion air purifier comprises an anion air purifier body. An air inlet is formed in the surface of the anion air purifier body. An operating panel anda display screen are further arranged above the surface of the anion air purifier body. An air outlet is formed in the top of the anion air purifier body. A top plate is arranged at the bottom of theanion air purifier body. The bottom of the top plate is fixedly connected with a base. A bottom seat of the anion air purifier has a folded function and is folded when not being used, so that the occupied area is reduced greatly; by pushing a supporting seat, a sliding plate is driven to be contracted to the interior of the top plate; when the supporting seat moves, a section rod is driven to becontracted in a sleeve rod, and meanwhile, a clamping rod is taken out of a groove in a clamping sleeve; and when the sliding plate is fully contracted to the interior of the top plate, a sleeve ringis rotated to make a sealing plate rotate until the sealing plate covers the top of the top plate, so that the width of the bottom seat of the anion air purifier is reduced, and the beautiful degree of a house is improved.

The invention discloses an automatic automobile gear shifting inhaul cable assembly and a fast assembling method. The automatic automobile gear shifting inhaul cable assembly comprises a steel wire rope, a protection pipe, a first connector, a second connector, damping blocks, a length adjusting mechanism, a first protection pipe connector mechanism and a second protection pipe connector mechanism. The damping blocks are fixed to the protection pipe in a sleeving manner through bonding of glue. The length adjusting mechanism comprises an adjusting spring, an adjusting screw and an adjusting lock block. The automatic automobile gear shifting inhaul cable assembly can overcome defects existing in existing automatic automobile gear shifting inhaul cable assemblies, and automatic automobile gear shifting work is conveniently, comfortably and accurately controlled. The automatic automobile gear shifting inhaul cable assembly is adjustable in overall length and wider in application range. The novel length adjusting mechanism is additionally arranged so that the requirement of the inhaul cable assembly for the overall length adjustability can be effectively met; the dismounting, mounting and adjusting processes are very simple and convenient; and according to the fast assembling method for the automatic automobile gear shifting inhaul cable assembly, the assembling process is very simple and convenient, and fast assembling and forming can be achieved without the aid of special tools.

The invention discloses an open-type three-jaw self-centering rotation device. The device comprises a self-centering clamping disc portion and a self-centering rotation portion which are assembled together. The self-centering clamping disc portion is used for clamping workpieces. The self-centering rotation portion drives the workpieces to conduct rotation machining. The open-type self-centering clamping disc is adopted, so that the open-type three-jaw self-centering rotation device is particularly suitable for automatic bottoming welding of flanges and connecting pipes with the flanges on the two edges, and the workpieces can be directly lifted away along an opening of the clamping disc after welding is completed. The open-type three-jaw self-centering rotation device is quite suitable for automatic welding, hole forming, cutting and the like of some long circular workpieces, the working mode that long workpieces must be inserted into one end of rotation clamping disc equipment with a central through hole during operation is avoided, the long workpieces can be directly placed on the open-type three-jaw self-centering rotation device from bottom to top by the adoption of the open-type three-jaw self-centering rotation device, unnecessary man-hour waste can be reduced, the working efficiency of the open-type three-jaw self-centering rotation device is improved, and the overall length of the open-type three-jaw self-centering rotation device is decreased.

The invention discloses robot equipment. The robot equipment comprises a power transmission rack and a power transmission end connected with the power transmission rack in a matching manner, wherein a base is fixedly arranged on the rear end face of the power transmission rack; rollers are arranged in the base in a rolling manner; an accommodating groove of which a groove opening faces downward is formed in the bottom end face of the power transmission rack; an electric binding post extending downward is arranged at the midpoint of the top end wall of the accommodating groove; an electric binding slot is formed in the bottom end face of the electric binding post; a first sloping side face is arranged on the outer side of the bottom end face of the electric binding post. According to the robot equipment disclosed by the invention, an integral structure is simple, and the power transmission end is safely and reliably fixed; the fixing operation of the power transmission end is convenient and quick; in addition, when a locking connection block locks and unlocks, the power transmission end does not be electrified; both electrifying operation and interrupting operation of the power transmission end are realized by power provided by two drivers, and thereby electric shock accidents occurring when the power transmission end is plugged are avoided, and further life safety of workers is ensured.

The invention discloses screw anti-falling equipment for an airplane narrow part. The screw anti-falling screw anti-falling equipment comprises a screwdriver, a four-foot gripper, a lifting handle anda telescopic sleeve, wherein the screwdriver comprises a knife handle, a knife rod and a cutter bar, the four-foot gripper is of a circular-tube-shaped structure, one end of the four-foot gripper penetrates through the telescopic sleeve and then is embedded into the lifting handle together with telescopic sleeve, four elastic pieces which are integrated with the four-foot gripper and are buckledin the end part are arranged at the other end of the four-foot gripper, the knife rod penetrates through the four-foot gripper, the lifting handle and the telescopic sleeve through a through hole formed in the lifting handle, and the knife rod, the four-foot gripper, the lifting handle and the telescopic sleeve are located on the same axis. According to the screw anti-falling screw anti-falling equipment, screws can be effectively and quickly disassembled through the cooperation of the screwdriver and the four-foot gripper and the auxiliary parts, so that the screws can be prevented from accidentally falling when screwed out or screwed in.