49results about How to "Strong anti-theft function" patented technology

The invention discloses an intelligent protection system for motorcycle keyless starting. The system comprises a head lock and a control host; the control host comprises an audio frequency / voice frequency early warning and alarming unit, a line fault detecting unit, an illegal starting calling unit, a vibration activating unit, a whole motorcycle power supply control unit, an ignition detecting and control unit, an self-separating control unit, an electric starting control unit as well as a single-chip microcomputer unit and a PKE (passive keyless entry) bidirectional communication unit of a main control switch and a code input unit; the head lock is an electric lock; the single-chip microcomputer unit is also connected with a head lock control unit; the single-chip microcomputer unit controls the head lock by the head lock control unit. The intelligent protection system for the motorcycle keyless starting has the beneficial effects that the unlocking code is strong in protection property and good in safety, and the mechanical lockset is unlocked in a keyless mode and is not easily damaged; the intelligentized and humanized levels of the operation of a motorcycle are high, and meanwhile, excellent properties that the system does not consume electric energy in a standby state and a battery is protected are effectively kept.

The invention firstly provides a multi-break switch. The multi-break switch comprises a locking structure, a key switch structure and a motor clutch switch structure, wherein the locking structure comprises a drive shaft; the drive shaft is separately connected with the key switch structure and the motor clutch switch structure; and the motor clutch switch structure comprises a monitor, a drive control panel and a motor clutch structure which are electrically connected. The invention provides a well lid device which comprises a roadbed, a well base, an inner well lid assembly and an outer welllid, and further comprises the multi-break switch, wherein the well base is mutually fixed with the inner well lid assembly through the multi-break switch. According to the multi-break switch and thewell lid device provided by the invention, the multi-break switch is provided with the key switch structure and the motor clutch switch structure, so that unlocking ways are various, and use is moreintelligent and convenient. Moreover, the key switch structure and the motor clutch switch structure are opened after being subjected to authorized program, so that the anti-theft function of the multi-break switch is stronger, and therefore, financial safety in a well is guaranteed.

The invention provides a three-dimensional storage garage for bicycles and motorcycles. The three-dimensional storage garage mainly comprises a garage frame system, a power supply system, a lifting and bicycle and motorcycle storage system, a motorcycle storage and moving system, an electric motorcycle charging system, an intelligent charging and control system, and an advertising system. By usingthe three-dimensional storage garage, the bicycles and the motorcycles can be three-dimensionally stored in the garage in a hung mode; and the three-dimensional storage garage for the bicycles and the motorcycles is driven through solar energy, thus the electric motorcycles and the electric bicycles which are stored in the three-dimensional storage garage can be charged, in the operation process,intelligent identification, unlocking, locking, fee collecting and controlling can be conducted, and thus the problems of all links during parking of the bicycles and the motorcycles are solved overall. Through the three-dimensional storage garage for the bicycles and the motorcycles, shared bicycles and private bicycles can further be stored in a mixed mode, the structure is firm, the occupied area is small, energy saving and environmental protection are facilitated, and the bicycles and the motorcycles which are stored in the three-dimensional storage garage for the bicycles and the motorcycles further have the extremely-high anti-theft function.

The invention relates to an anti-theft communication machine room with a spliced concrete interlayer, which comprises a base, wherein the base consists of corner fixing seats and troughs; the corner fixing seats are embedded into a concrete platform; the troughs are connected among adjacent corner fixing seats; grooves for arranging wall bodies are formed at the upper ends of the corner fixing seats and the troughs; a preformed layer of the wall body are formed by splicing prefabricated corner plates on four sides and prefabricated slabs between every two adjacent prefabricated corner plates; the prefabricated corner plates and the prefabricated slabs between every two adjacent prefabricated corner plates are connected in series in a way of mortise and tenon joint; and locking bolts are inserted into the prefabricated corner plates and the prefabricated slabs. In the anti-theft communication machine room, each of the wall bodies and a roof adopts a three-layer structure, wherein insulating boards form inner and outer layers so as to achieve a better heat insulation effect, and the concrete preformed layer forms a middle layer, and is formed by splicing the prefabricated corner plates on the four sides and the prefabricated slabs between every two adjacent prefabricated corner plates in series in the way of mortise and tenon joint and inserting the bolts to lock the prefabricated corner plates and the prefabricated slabs, so that the communication machine room is convenient to splice in a construction process, and has a more rational and securer structure, improved wind resistance, improved resistance to shock and higher anti-theft performance.

The invention provides a safety screw. The safety screw comprises a hexagon nut and a threaded rod, wherein a circular ring shaped groove is formed in the top of the hexagon nut, a locking magnetic snap is arranged in the circular ring shaped groove, the locking magnetic snap keep a downward stress through a stress part, and the bottom of the locking magnetic snap is outwardly provided a wedge-shaped cross section; the hexagon nut is provided with a circular through hole in the side wall of the circular ring shaped groove, an ejector rob is arranged in the circular through hole, the ejector rob can move along the circular through hole, an oblique plane matched with the wedge-shaped cross section is arranged at the end part of an inner side of the ejector rob, the wedge-shaped cross section moves downward to push the ejector rob to an outer side, an arc-shaped platform is fixed at the end part on the outer side of the ejector rob, and when the ejector rob is positioned in an innermost position, the arc-shaped platform is hidden in a hiding tank on a side surface of the hexagon nut. The safety screw provided by the invention has the following advantages: the screw structure is simple, the connecting is firm and good, the probability of looseness is low, the service life is long, a strong anti-theft function is played during a using process, and the safety screw is particularly applicable to occasions with relatively high requirements to screw safety performance.

The invention discloses an electronic lock. The electronic lock comprises a front-end structure, a lock part and a rear-end structure provided with a circuit structure inside. The lock part comprises a lock shell and a lock cylinder structure. The lock shell is divided into a front-end part, a groove and a rear-end part. The lock cylinder structure comprises a motor base and a lock shifting fork, wherein the motor base is connected with the circuit structure through a linkage rod, and the lock shifting fork is embedded in the groove and arranged on the front end of the motor base in a sleeving mode. A motor assembly is embedded in the motor base and is provided with a transmission shaft forwards. The rotary shaft is sleeved with a torsion spring capable of rotating along with the rotary shaft and moving forwards and backwards. The torsion spring is sleeved with a rear push block and a front push block, the rear push block and the front push block can move along with the torsion spring, a clutch clamping piece capable of moving along with the front push block is fixedly clamped to the front end of the front push block, a first clamping groove is formed in the front end of the motor base, and a second clamping groove is formed in the lock shifting fork. The clutch clamping piece is clamped and inserted into the second groove from the rear end, can move forwards and backwards in the first clamping groove and in the second clamping groove along with the front push block, and accordingly idling or meshing linkage between the motor base and the lock shifting fork is achieved.

The invention discloses a multifunctional travel luggage. The multifunctional travel luggage comprises a luggage body, wherein the luggage body is provided with a luggage cover; the outer surface of the luggage cover is provided with a handle; the front end at the bottom of the luggage body is provided with two guide wheels, and two ends of a central shaft of one guide wheel are connected with a lever mechanism; the rear end at the bottom of the luggage body is provided with two rear wheels; the two rear wheels are driven by motors installed in the rear wheels; the motors are driven by a processor installed in the luggage body; a storage battery is fixed in the luggage body. The multifunctional travel luggage provided by the invention not only can serve as a travel luggage, but also can serve as a traffic tool for outgoing of people, is high in antitheft function, and is convenient to use.

The invention provides a bicycle tail lamp. The lamp comprises a tail lamp main body, a circuit main board part, a battery and a battery compartment cover. The tail lamp main body and the battery compartment cover are detachably connected. The circuit main board part is fixedly arranged in the tail lamp main body. The battery is fixedly arranged between the tail lamp and the battery compartment cover. The battery is electrically connected with the circuit main board part. The tail lamp main body is fixedly arranged on a rear fender of a bicycle through anti-theft screws. The bicycle tail lamp has the beneficial effect that the tail lamp main body and the rear fender are fixed together through the anti-theft screws, so that the tail lamp has a powerful anti-theft function; the rear tail lamp main body is separated from the battery, and battery can be replaced without detaching the rear tail lamp main body; the tail lamp is on only when the light sensation and the vibration sensation conditions are met, so that bicycle riding at night is safer; and since a tail lamp reflector has a light reflecting function in the absence of vibration, warning can still be provided for an automobile behind.

The invention discloses a household multifunctional portable type intelligent anti-theft door lock. The household multifunctional portable type intelligent anti-theft door lock comprises a lock body,a lock box and an intelligent unlocking part and is characterized in that the inner cavity of the lock body is provided with an arc-shaped through groove, an arc-shaped locking bar is arranged insidethe through groove, the inner cavity of the lock box is provided with an arc-shaped lock groove, a self-locking device is arranged inside the arc-shaped lock groove, the self-locking device comprisesa clamp bar, a clamp part, a groove and a reset spring, the locking end of the arc-shaped locking bar is provided with a rectangular clamp groove, the inner wall of the arc-shaped lock groove is provided with an electric push rod, a lock hole and a rotating motor are arranged in the lock body, the arc-shaped lock bar and the rotating motor are connected with a lock transmission bar through a T-shaped transmission rod, the intelligent unlocking part comprises a liquid crystal screen, a code keyboard, a fingerprint collecting window, a microprocessor, an algorithm chip, a storage and a control module, a proximity sensor is arranged at the lower end of the lock hole, the right-angle lateral wall of the clamp part is provided with a pressure sensor, and an alarm is arranged inside the lock box. The household multifunctional portable type intelligent anti-theft door lock is simple in structure and high in practicality.

The invention relates to an anti-theft cabinet and discloses a fingerprint anti-theft cabinet. The fingerprint anti-theft cabinet comprises a cabinet body and a plurality of drawers, wherein locksets for connecting the cabinet body and the drawers are arranged on the cabinet body and the drawers; and fingerprint identifiers are arranged on the drawers. The fingerprint anti-theft cabinet has the beneficial effects that an advanced technology of the fingerprint identifiers is introduced into the household cabinet, so that an anti-theft function of the cabinet can be effectively improved. Because each individual has a unique fingerprint in the world, the fingerprint identifiers can effectively identify a master of the cabinet, and a common theft cannot open the fingerprint anti-theft cabinet. The fingerprint anti-theft cabinet has a high anti-theft function; and by virtue of the plurality of drawers, many persons in a familty can have independent and corresponding drawers.

The invention discloses an annular type combined password locking control valve, and relates to an efficient multifunctional valve integrating an oil supply system, a gas supply system, a heat supply system and a water supply system. The valve is composed of a valve shell, a valve element, a valve shaft and a password lock mechanism. A hidden lock fixing box is fixed over the valve shell, the valve shaft connected with the top end of the valve element is arranged in the hidden lock fixing box, the bottom end of a latus-rectum valve shaft is arranged in the hidden lock fixing box and fixedly connected with the top end of the valve shaft through a pin shaft. The password lock mechanism is sequentially sleeved with a lock password ring I and a lock password ring II from inside to outside from the lower middle part of the latus-rectum valve shaft. The bottom of the lock password ring I and the bottom of the lock password ring II are arranged in the hidden lock fixing box. The portion, above the hidden lock fixing box, of the upper portion of the lock password ring II is sleeved with a password manual rotary handle II, and the portion, above the password manual rotary handle II, of the upper portion of the lock password ring I is sleeved with a password manual rotary handle I. The top of the latus-rectum valve shaft is provided with a valve shaft locking cap. The annular type combined password locking control valve is reasonable in structural design and has quite strong control, management, thievery prevention and adjustment functions.

The invention discloses bulletproof, anti-theft and energy-saving composite glass which comprises a mounting frame, an inner layer glass body, a bulletproof force-bearing rubber piece and an outer layer glass body, wherein the inner layer glass body, the bulletproof force-bearing rubber piece and the outer layer glass body are connected to the mounting frame. The inner layer glass body and the outer layer glass body are arranged on the two sides of the mounting frame correspondingly; the outer side face of the mounting frame is covered with sealing glue; a groove is formed in the middle of the mounting frame; the edge of the bulletproof force-bearing rubber piece is connected to the groove; and a reserved space is formed between the inner wall of the groove and the bulletproof force-bearing rubber piece for expansion of the bulletproof force-bearing rubber piece. The composite glass is excellent in heat-insulation, bulletproof anti-theft and light-transmittance performance, and multiple requirements of users are met; and the composite glass can further be directly mounted on main frames of a door, a window and a curtain wall through connectors, and is different from a traditional fixing mode that after glass is embedded in an aluminum groove, wires are pressed in a buckled mode.

The invention discloses a smart energy dispensing system. The system comprises an energy storage module, and the energy storage module distributes at least one type of energy to at least one power utilization terminal via an energy distribution module. The power utilization terminal comprises at least one charging pile. The charging pile meters the charging electric quantity via a guide rail typeelectric energy meter body, and transmits the charging electric quantity to a main station via a concentrator body for display. Via the system, energy circulation and utilization can be arranged effectively reasonably. In the upward movement process of a block, a connecting rod enables that two bar-shaped slide blocks move oppositely to enter the back side of a pressure plate, and the pressure plate is warped. Two suckers tightly suck a guide rail, a connecting force between the guide rail type electric energy meter body and the guide rail is further increased, and the guide rail type electricenergy meter body is kept stable for long time and does not shake.

The invention relates to an anti-theft lock, which can be used for effectively solving the problems of complicated structure and poor anti-theft effect of a pin tumbler lock. The technical scheme adopted by the invention is as follows: the anti-theft lock comprises a lock body and a lock core, the lock core is mounted in the center of the lock body, a moving ball braking hole is formed in the internal wall of the lower part of the lock body, first moving ball holes are formed in the center of the lock core in the transverse direction, second moving ball holes communicated with the first moving ball holes are formed in the lower part of the lock core, the center line of the first moving ball holes is vertical to that of the second moving ball holes, a keyhole, which is located above the first moving ball holes and is communicated with the first moving ball holes, is formed in the upper part of the lock core, first moving balls, which can move leftwards and rightwards, are mounted in the first moving ball holes, a cylindrical bulged part, which extends into the keyhole, is arranged at the upper part of each first moving ball hole, the lower part of each first moving ball hole is provided with a plurality of clamping grooves, and second moving balls, which can move upwards and downwards, are mounted in the second moving ball holes. The anti-theft lock has the advantages of novel, unique and simple structure, easiness in operation, strong anti-theft function and low cost, and accordingly has excellent social and economic benefits.

An anti-theft distribution box proposed by the present invention includes a box body (1), a front cover (2) and a circuit board for switching the distribution box; the front cover (2) is provided with buttons (3) and smart The lock (4), the inside of the front cover (2) is provided with an electromagnetic conversion module (5); the circuit board is provided with a microprocessor module (6), a wireless transmission module (7), an alarm module (8) and Power supply module (9); the data transmission terminal of described microprocessor module (6) is connected with the data transmission terminal of wireless transmission module (7), and its output terminal is connected with the input terminal of alarm module (8); Described power supply module (9) used for power supply of the electromagnetic conversion module (5) and the circuit board; the button (3) is connected with the microprocessor module (6) through wires to control the working state of the electromagnetic conversion module (5). The invention has simple structure, good anti-theft performance, can effectively prevent strong electricity from harming human bodies, and has good application prospects.

The invention discloses a method and an apparatus for security and theft prevention of a mobile terminal and a mobile terminal. The method comprises the following steps: monitoring users' operations on the mobile terminal; matching the monitored user' operations with preset actions in storage; if the matching is successful, disconnecting a smart control switch on a battery module of the mobile terminal, the smart control switch being in series connection to a positive VBAT or a negative GND of the battery module of the mobile terminal for controlling the on and off of a power supply channel of the battery module. The preset actions are invoked upon the following conditions: continuous N times of failed unlocking, reception of remote disconnection instruction, and detection of a turn off operation or detection of de-energization operation. According to the invention, the method and apparatus disenable the mobile terminal to turn on in cases when an identification code is not authorized by the mobile terminal, which prevents relevant user information stored in the mobile terminal from being lost and avoids irredeemable loss. The technical solution of the invention is easy to implement, provides strong theft prevention, and has strong practicality.

The invention discloses an electricity information transmission device applied to an electricity acquisition terminal. The electricity information transmission device comprises a concentrator body; and a protective device comprises a U-shaped hood, a cover plate, a bearing plate, clamping rods, a sliding plate, a vertical rod, a T-shaped limiting rod, a pull rope and an anti-fake block. The concentrator body is protected through the protective device formed by the cover plate and the U-shaped hood which are combined; the four clamping rods are inserted into corresponding clamping grooves and inwards push the sliding plate; after the sliding plate inwards slides by a section of distance, the vertical rod is disengaged with an insert groove; under the effect of a second reset spring, the T-shaped limiting rod moves upwards to be clamped into a limiting groove; thus the concentrator body is protected through the protective device formed by the cover plate and the U-shaped hood which are combined; and connection of the four clamping rods with the four clamping grooves is adopted, thus during destroying by a stealer, the stealer needs to destroy the four clamping rods and then can takeaway the concentrator body, and the anti-theft function of the protective device is high.

The invention discloses a combined burglarproof coded spring lock to mainly solve the problem of low safety performance in the prior art. The combined burglar proof coded spring lock comprises a lock case, a spring lock device and a coded lock device provided with a connecting shaft, wherein the spring lock device is fixedly connected with the inner wall of the lock case; the coded lock device is positioned in the lock case; one end of the connecting shaft is positioned in the spring lock device, and the other end of the connecting shaft is positioned outside the lock case; the coded lock device comprises a base plate, a pressure plate and a shielding plate; the connecting shaft penetrates through the center of the base plate, the center of the pressure plate and the center of the shielding plate respectively; a third elastic component sleeves the connecting shaft between the base plate and the pressure plate; the base plate and the pressure plate are in contact connection with the inner wall of the lock case; the shielding plate is positioned in the spring lock device; the spring lock device comprises a lock body provided with a locking hole, a lock core and an attached lock core; the outer wall of the lock body is fixed in the lock case; the lock core is arranged in the locking hole of the lock body; and the attached lock core is arranged between the lock body and the lock core. By virtue of the technical scheme, the combined burglarproof coded spring lock disclosed by the invention achieves the aim of high safety.

The invention discloses an outer holding strip assembly of an automobile door, which comprises an outer holding strip body, wherein the outer holding strip body consists of a framework of which the cross section is inverted U-shaped and a lip edge, the lip edge is integrated with the framework and is positioned on one side of the framework; the upper part of a clamp is also inverted U-shaped; theclamp is provided with an overhead hook, elastic clamping teeth, an inner neck and an outer neck; the clamp is arranged in an inverted U-shaped clamping groove of the outer holding strip body; and the overhead hook at the left lower end of the clamp is in interference fit with the left lower end of the framework, and the outer neck on the right outer side is in interference fit with the right lower end of the framework to ensure that the clamp and the outer holding strip body are combined into a whole body. The outer holding strip assembly of the automobile door has the following obvious advantages that: because of the special structure of the clamp, the outer holding strip body is reliably arranged on the automobile door and has stable performance; the outer holding strip body cannot be dismounted under the condition that the automobile door is locked and the automobile window glass is raised to ensure that the outer holding strip body has a strong anti-theft function; and the outer holding strip body is well matched with an automobile body metal plate, and not only improves the sealability but also makes the automobile body beautiful and smooth.

The invention discloses a remote monitoring device for municipal drainage pipelines. The remote monitoring device comprises a base, a pipeline opening and a pipeline opening cover, wherein the base is fixedly arranged at the end part of the pipeline opening and is fixedly sheathed with the pipeline opening; the pipeline opening is arranged at the center of the base and is internally provided with a limiting seat by the base; the pipeline opening cover is fixed with the inner part of the pipeline opening by a limiting seat; the inner part of the base, corresponding to the top part of the pipeline opening cover, is provided with an installing groove; the installing groove, corresponding to the installing groove, is provided with an electronic lock; the inner wall of the base, corresponding to the electronic lock, is provided with a touch alarm; the input end of the electronic lock is connected with a remote control device; the input end of the remote control device is electrically connected with a storage battery; and the storage battery and the remote control device are fixedly arranged in the base. The remote monitoring device disclosed by the invention has the advantages that the structure is simple, and the anti-theft function is strong, so that the phenomenon that the pipeline opening cover is stolen can be effectively avoided and the road-driving safety can be improved.

The invention discloses a vehicle-used electric oil pump having a remote-control vehicle-used invisible burglar alarm, and the electric oil pump can cut off the power supply of the electric oil pump to achieve anti-theft. Two recesses are arranged in an insulated wiring block on the top end of an electric oil pump main body; the recesses are separately provided with oil pump electrical contact metal strips; a remote control switch is arranged in an insulated oil pump top cover, and is in series with a power supply and the oil pump electrical contact metal strips of the electric oil pump main body; the power supply is connected to parts in the remote control switch, and supplies working power for the parts in the remote control switch; and the remote control switch is arranged in the insulated oil pump top cover. The advantages of the vehicle-used electric oil pump are that a car cannot run once a car owner leaves the car with a wireless remote controller so that the car burglarproof purpose can be achieved; a car thief has no way to disenable an anti-theft device even if the car thief knows the car is the remote control switch anti-theft car; and the electric oil pump is the anti-theft device having strong anti-theft functions.

The invention discloses an alarm device. The alarm device comprises a fingerprint identifier, a loudspeaker, a switch, a setting button, a Bluetooth-containing single-chip microcomputer, a vibration sensor, a charging socket, an electric quantity display screen, a battery, a flashing light and a voltameter. The fingerprint recognizer, the loudspeaker, the switch, the setting button, the vibrationsensor, the electric quantity display screen, the battery, the flashing light and the voltameter are respectively connected to the Bluetooth-containing single chip microcomputer. The fingerprint identifier, the loudspeaker, the switch, the setting button, the vibration sensor, the electric quantity display screen, the flashing light and the voltameter are respectively connected to the battery. Thebattery is connected to the charging socket. The alarm device is small in size, convenient to carry, high in alarm sensitivity and powerful in anti-theft function. A user can know the electric quantity at any time through the external electric quantity display screen, so that use is convenient and safe.The safety of valuables such as personal computers is effectively guaranteed, and great convenience is brought to daily life of students.

The invention discloses a fireproof door magnet switch. The fireproof door magnet switch comprises a door magnet body assembly, a right door magnet lock body assembly, a left door magnet lock body assembly, a body drive motor, a body main gear, a body transmission gear, a radial bevel gear, an axial bevel gear, a transmission hexagon, a transmission connecting rod, a lock catch, spring bolts, driving cams, driving cranks, driven cams, driven cranks, pushing sliding blocks, following wheels, lock body motors, gear supporting shafts, lock body main gears, gear locking screws, lock body driven gears and gear transmission shafts. The door magnet body assembly is fixed to a fireproof door frame. The right door magnet lock body assembly and the left door magnet lock body assembly are symmetrically fixed to a door leaf. In the left door magnet lock body assembly and the right door magnet lock body assembly, the lock body motors are used for driving matched transmission of gears and crank cammechanisms, the spring bolts fixed in the pushing sliding blocks are driven to move front and back to be matched with the lock catch in the door magnet body assembly fixed to the fireproof door frame,and door leaf locking, opening and closing are achieved.

The invention discloses a composite anti-theft lock cylinder structure and an anti-theft method thereof. The composite anti-theft lock cylinder structure comprises a lock cylinder body and a key, the lock cylinder body comprises a lock shell, and under the arrangement of a groove sealing pin tumbler, illegal persons can be effectively prevented from picking and pulling blades through a special unlocking tool for a blade lock cylinder, so that the function of preventing the lock cylinder from being technically unlocked is achieved; under the arrangement of the groove sealing pin tumbler, a groove sealing pin tumbler stepped hole and a flat pin tumbler, the situation that the lock cylinder is opened after the sharp part of the groove sealing pin tumbler is shoveled off by the illegal persons through a shovel-shaped tool can be effectively prevented, and a pair of lock head anti-drilling caps are arranged on a door at the outermost end of the lock cylinder in a standard manner, so that the anti-drilling function can be achieved; and therefore, the lock cylinder achieves the ultra-strong anti-theft functions of drilling prevention, shoveling prevention and technical opening prevention in a three-in-one manner.

The invention discloses a combined anti-theft mechanical lock and a key for opening the combined anti-theft mechanical lock. The problem that in the prior art, an existing mechanical lock is not high in safety performance is solved. The combined anti-theft mechanical lock comprises a lock shell, a mechanical lock device arranged in the lock shell and a positioning driving device used for driving the mechanical lock device; the mechanical lock device comprises a ratchet mechanism; one face of the ratchet mechanism is provided with at least one protruding column; the positioning driving device and the protruding column are located on opposite sides of the ratchet mechanism; a ring disc and a protruding disc matched with a blind hole are sequentially arranged in the position, on the protruding column side, of the lock shell; and a groove matched with the protruding column is formed in the ring disc. By means of the above scheme, the aim of being high in safety performance is achieved, and the very high practical value and popularization value are achieved.

The invention discloses a safety hook lock for translation doors and windows, which comprises a chassis, a lock piece and a hook piece. area, the main lock area is provided with a round fine iron washer, and the lock is fixed to the center of the main lock area by bolts arranged on the circular iron washer, and the fixed area A first fixing hole is provided on the top, and the hook is composed of a main body, a lock and a base plate, and a second fixing hole is provided on the base plate. The invention has reasonable structural design, smooth switch rotation, stronger anti-theft function, high-quality material selection, firmness, not easy to fall off, not easy to break and not easy to rust, and at the same time, it is small and light in size, more convenient to install, with higher safety factor and longer service life.

The invention provides a bicycle front instruction lamp. The bicycle front instruction lamp comprises a front instruction lamp body, a battery, a circuit main board part, a battery cabin cover and a fixing support. The circuit main board part is fixedly arranged in the front instruction lamp body, one side of the front instruction lamp body is detachably connected with the battery cabin cover, and the front instruction lamp body is fixedly connected with the fixing support through a bolt; and the battery is fixedly arranged between the exterior of the front instruction lamp body and the battery cabin cover, the battery is electrically connected with the circuit main board part, and the fixing support is fixedly arranged a front wheel stand column of a bicycle. The bicycle front instruction lamp has the beneficial effect that the circuit main board part is separated from the battery through a rear shell, the battery is replaced under the condition that a front shell does not need to be dismantled, and battery replacement is convenient; meanwhile an included angle between a front instruction lamp main body part and the horizontal surface is four degrees, so that part of emitted lamplight directly irradiates on a forward road; and only when light sensation and vibration sensation of the front instruction lamp simultaneously meet the conditions, the bicycle front instruction lamp works, and the energy-saving effect can be achieved.

The invention discloses a preparation method of a table tennis table. Firstly, the front and side surfaces of the mold are polished, and a layer of release wax is coated on the mold, and then polished; secondly, the billet shape is heat-treated, and the surface of the wooden core board is placed on the edge of the back surface of the table tennis table. The wooden strips after nailing treatment are reinforced; the third is to paint the table mold with resin, mix the unsaturated polyester resin and talcum powder in proportion, and then paint; the fourth is to wash and brush the wooden core table surface, and add peroxide Bad acetone and accelerator, brush on the table surface, and fix the table mold; the fifth is to paint the table surface, use fiberglass cloth to spread the brush, and then perform hydraulic pressure; the sixth is to remove the film from the table surface, after a certain period of time Remove the film and paint the surface of the ball table with unsaturated polyester resin and talcum powder. The process of the invention is simple and convenient, the table does not deform or crack in harsh environments, and has a long service life.