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237results about How to "Safe and reliable locking" patented technology

Electrical plug-in connector and interlocking clip for interlocking of two housing parts

The invention relates to an electrical plug-in connector and interlocking clip for interlocking of two housing parts. The electrical plug-in connector with a first housing part, a second housing part and at least one metal interlocking clip which is pivotally mounted on the first housing part, two bearing journals being mounted on the first housing part and two interlocking projections being provided on the second housing part, the interlocking clip having two interlocking legs and a handle piece which connects the interlocking legs to one another, the interlocking legs each having a bearing arm with a recess for the bearing journal and an interlocking arm for overlapping an interlocking projection. Damage to the interlocking projections by the metal interlocking arms is prevented by two plastic parts which are located on the two interlocking legs of an interlocking clip such that a respective section of a plastic part covers the free end surface of an interlocking arm when the interlocking clip is pivoted into the closed position.
Owner:PHOENIX CONTACT GMBH & CO KG

LED lamp device

The invention discloses an LED lamp device. The LED lamp device comprises a lamp base arranged in a wall and an LED lamp body which is connected with the lamp base in a matched manner. A lamp matching groove with a downward opening is formed in the bottom end face of the lamp base. An electrification column downwards extending is arranged in the middle of the top end wall of the lamp matching groove. A power supply hole is formed in the bottom end face of the electrification column. A first pressure application slope is arranged on the outer side of the bottom end face of the electrification column. The LED lamp device is simple in integral structure, the LED lamp body is fixed safely and reliably, and fixing operation of the LED lamp body is convenient and fast; the mounting, dismounting and replacing efficiency of the LED lamp body is greatly improved, and when a lock inserting block is locked and unlocked, the LED lamp body cannot be electrified. The electrification operation and outage operation of the LED lamp body are achieved through control via power provided by two elevating motors, electric shock accidents happening during LED lamp body mounting, dismounting and replacing are effectively avoided, and the life safety of workers is guaranteed.
Owner:新黎明科技股份有限公司

Decorative LED lamp

The invention discloses a decorative LED lamp. The decorative LED lamp comprises a lamp body frame embedded in an indoor wall, and an LED lamp body for matching and connecting with the lamp body frame; an insertion rod is arranged in middle of the back end surface of the LED lamp body; a connecting electric column is arranged in middle of the back end surface of the insertion rod; two positioning sinking grooves are symmetrically formed in the left and right end surfaces of the insertion rod; an insertion cavity for matching and connecting with the insertion rod is formed in middle of the front end surface of the lamp body frame; and two first chutes extending front and back are symmetrically formed in the left and right end walls of the insertion cavity. The decorative LED lamp is simple in overall structure and simple and convenient in operation steps, reduces the operation difficulty of installing or disassembling the LED lamp body, improves the working efficiency of installing or disassembling the LED lamp body, is safe and reliable in locking or unlocking operation, and can realize quick installation and disassembly of the LED lamp body.
Owner:惠州市众鑫灯饰有限公司

System for quickly assembling and disassembling auxiliary tyre for motor vehicle

InactiveCN102582373AGuaranteed fixed effectReduced risk of accidental releaseTyre partsTyresMobile vehicleLocking mechanism
The invention relates to a system for quickly assembling and disassembling auxiliary tyre for motor vehicle. The system comprises the auxiliary tyre (1) and a locking device, wherein the auxiliary tyre (1) comprises an auxiliary cover tyre (9) and an auxiliary hub (11); and the auxiliary tyre (1) is arranged on a hub (23) of a main tyre (3) of the motor vehicle in a coaxial manner by virtue of the locking device. The system is characterized in that: the locking device comprises a main tyre side bonding part, an auxiliary tyre side fixing part, a movable connection mechanism and a locking mechanism. The system for quickly assembling and disassembling auxiliary tyre for motor vehicle is provided with a connecting channel (51) by which the main tyre side bonding part can pass through the hub (23) of the main tyre (3) and arrive at the radial surfaces (40c and 41c) of the inner side.
Owner:周立新

Cover device with dust suction device when used with electric tool

The device (10) has a protective bonnet (24) i.e. angle grinder, comprising a receiving part (26) for receiving the protective bonnet. A closure part (30) is movably attached at the receiving part and movable between an open position and a closed position. The receiving part opens the closure part in an axial direction (19) over the protective bonnet of an electric power tool (12) relative to sharpening and / or separation tools (20) and is fastenable by closing / / locking of the closure part at the protective bonnet.
Owner:ROBERT BOSCH GMBH

Double-support type steel straightener and quickly-replaceable roller set thereof

The invention firstly discloses a quickly-replaceable roller set of a straightener. The quickly-replaceable roller set comprises a driving shaft, a driven shaft, straightening rollers, a locking mechanism and an axial adjusting device. The locking mechanism comprises a threaded pull rod, a hydraulic cylinder and a driving mechanism, the hydraulic cylinder is used for applying locking force onto the straightening rollers, and the driving mechanism is used for driving the threaded pull rod to rotate. The invention further discloses a double-support type steel straightener adopting the quickly-replaceable roller set. The double-support type steel straightener comprises a framework, a plurality of quickly-replaceable roller sets, a driving device and a roller seam adjusting device, and the quickly-replaceable roller sets are arranged in upper and low rows and in a staggered manner. The double-support type steel straightener utilizing the quickly-replaceable roller set has the advantages of simple structure, safety, reliability, short roller replacement time, high work efficiency and adjustment accuracy and the like, and further, investment cost can be effectively reduced, straightening noise is reduced and product quality is improved.
Owner:CISDI ENG CO LTD

Braking system with safe torque take-up

The present invention relates to a braking system for an electric motor, the braking system comprising: a chassis; and at least one brake supported by the chassis, the brake comprising: at least one brake disk connected via a fluted connection to a shaft driven by the motor; an armature that is movable in translation along an axis of rotation of the shaft; a plurality of armature-guiding spacers, at least one of the spacers being engaged at one end in a corresponding housing in the chassis, so as to enable the chassis to take up torque that is exerted on the brake during braking; a plurality of springs for urging the armature against the disk; and an electromagnet which, when powered, attracts the armature and moves it away from the disk against the action of the springs.
Owner:LEROY-SOMEMER ENGINE CO LTD

Vehicle

The disclosed vehicle having at least pairing left and right wheels does not change in position, does not generate unnecessary vibrations, and does not require incline control when stopped, thus said vehicle is very safe, provides good ride quality and those riding therein do not feel any discomfort. The vehicle comprises: a vehicle provided with a drive unit and a steering unit which are connected to one another; a steering wheel for steering the vehicle; a drive wheel for driving the vehicle; a tilting actuator device for tilting a steering unit or a drive unit in the turning direction; a tilting brake device for stopping the tilting operation of the vehicle; a lateral acceleration sensor; and a control device. The control device controls so as to tilt in the turning direction on the basis of the lateral acceleration detected by the lateral acceleration sensor, and when the vehicle is stopped the control device stops the control of the vehicle tilt and operates the titling brake device and locks the position of the vehicle.
Owner:EQUOS RES

Thin-wall face gear machining fixture

The invention relates to a thin-wall face gear machining fixture, comprising a fixture body, an axial locking screw, a pressing plate and a positioning screw, wherein one end of the fixture body is provided with a boss which can be arranged in the centre bore of a workbench and the other end of the fixture body is provided with an annular boss which is used for installing a thin-wall face gear; the annular boss is provided with the pressing plate and the axial locking screw which are used for fixing the thin-wall face gear; the periphery of the fixture body is provided with through grooves; the center of the fixture body is provided with a gauging spindle which is coaxial with the fixture body; the boss of the fixture body, which is arranged in the centre bore of the workbench, can be also arranged on an adjustable mandrel; and the adjustable mandrel is arranged on the fixture body by the positioning screw. The thin-wall face gear machining fixture of the invention can be used for neutralizing forced deformation of a part to be processed in the machining process, has compact structure, is convenient to assemble and disassemble, and can ensure that the forced influences on the gear shaping, gear hobbing, gear grinding and the like of the thin-wall face gear in the machining process can be overcome; and meanwhile, the thin-wall face gear machining fixture of the invention can be applied in the machining process of the other types of thin-wall parts.
Owner:HARBIN DONGAN ENGINE GRP +2

Locking device for quick de-compiling through passage of high-speed train

The invention discloses a locking device for a quick de-compiling through passage of a high-speed train, which comprises a through passage hinge frame and a steel wire. The through passage hinge frame comprises a left frame and a right frame opposite in notch, a lock seat with a hole is fixed into a groove of the right frame, a lock hook with a hole can be inserted into the lock seat in linkage of the through passage and is fixed into a groove of the left frame, an inserting pin component which can be inserted into or removed out of the holes on the lock seat and the lock hook is fixed onto the steel wire, the steel wire is connected with a wrench component which is capable of drawing the steel wire to move through a lock handle, and the wrench component is provided with a rotary lock which can be locked or unlocked and a rotary handle. By means of locking and unlocking of the rotary lock, the handle is rotated to pull the steel wire to move, the inserting pin component is inserted into the holes combined by the lock hook and the lock seat, and accordingly safety and reliability in locking of the quick de-compiling through passage of the high-speed train can be realized. Loosening of the handle after locking can be avoided by means of the rotary lock, high locking stability can be guaranteed, and the operation requirements of quick de-compiling of the through passage can be met.
Owner:CHANGZHOU HUBOLA JINCHUANG TRAFFIC EQUIP

Female die wedge block locking mechanism of automatic forging press

The invention discloses a female die wedge block locking mechanism of an automatic forging press. The female die wedge block locking mechanism comprises a rack; a female die holder is arranged on the rack, and a female die is arranged in the female die holder; the connecting face of the female die and the female die holder is a female die locking inclined face; a female die locking sleeve and a female die locking block are arranged on the female die holder; the female die locking sleeve is perpendicular to the female die locking block to be inserted into the female die locking block; and the contact faces of the female die locking sleeve and the female die locking block serve as matched locking inclined faces; the top end of the female die locking block tightly abuts against the female die locking inclined faces; and a double-head bolt penetrates the female die locking sleeve to be connected with the female die holder. Through additional arrangement of the female die locking block, on the basis of the force amplifying principle of an inclined face mechanism, through vertical moving of one wedge block, the automatic locking function is achieved; the female die is reliably locked in the female die holder, locking is firm and reliable, and locking force is large; and machining is easy, and working reliability of a machine tool is ensured.
Owner:杨桂珍

Convenient-to-disassemble and assemble dust collection head device

The invention discloses a convenient-to-disassemble and assemble dust collection head device, which comprises a dust collection machine body and a dust collection head for being connected with the dust collection machine body in a matched manner to provide electricity, wherein an inserting cavity is arranged in the bottom surface of the dust collection machine body; a first sliding chute is arranged in a top wall of the inserting cavity; two driven parts are bilaterally symmetrically arranged in the first sliding chute; and each driven part comprises a first sliding plate stretching into the inserting cavity downwards and a driven convex head arranged at the outer side of the bottom of the first sliding plate. The convenient-to-disassemble and assemble dust collection head device is simplein overall structure, safe and convenient to operate and convenient to disassemble, assemble, repair and clean; an electric shock accident when the dust collection head is assembled, disassembled andreplaced is effectively avoided; the life safety of a worker is ensured; and the convenient-to-disassemble and assemble dust collection head device is suitable for promotion and application.
Owner:天津德邦(唐山)再生资源利用有限公司

Multifunctional lifting device

The invention discloses a multifunctional lifting device which comprises a front support and a rear support which are provided with load-bearing truckles. A front telescoping frame and a rear telescoping frame are penetratingly disposed in the front support and the rear support respectively. An upper standing column is fastened at the top end of the front telescoping frame. A front crossbeam penetrates in the front telescoping frame. A rear crossbeam penetrates in the rear telescoping frame. A middle crossbeam penetrates in the front crossbeam and the rear crossbeam. Rope guide wheels on the same horizontal line are mounted on the front crossbeam and the rear telescoping frame. One end of a reinforced steel wire rope is connected to the end of the front crossbeam. The other end of the reinforced steel wire rope penetrates through the upper standing column and is connected to the end of the rear telescoping frame in a tensioning manner. A balance weight component is disposed on the rear support. A working steel wire rope penetrates through the rope guide wheel of the front crossbeam, penetrates into a safety lock, passes the rope guide wheel on the rear telescoping frame and is guided into a power lifting device. A cradle handing part is disposed at the end of the front crossbeam. The multifunctional lifting device has the functions of glass lifting and cradle lifting, and is convenient for displacement, safe and reliable.
Owner:SHENXI MACHINERY

Electric control locking apparatus

The invention relates to a large allowance electronic controlling lock bolt, which is particularly applied to the lock of a retractable roof in a large stadium. The invention comprises a bolt, a first bolt support saddle, a second bolt support saddle, an electric drive pusher, a handspike support saddle, a reducing adjustment support saddle, and a bushing block; wherein, the first bolt support saddle and the second bolt support saddle are respectively fixed on two mechanisms which need locking; at least an otic placode is respectively arranged on the first bolt support saddle and the second bolt support saddle; the electric drive pusher pushes the bolt in the bushing block and ensures the bolt to be inserted into and used as the otic placode of locking ears to lock the two mechanisms. In application of the electronic controlling technology, the invention realizes the automatic lock of large roofing. A channeled slotted hole designed in the locking device allows an error band for the opposite hole site of two bolt support saddles, thereby ensuring safe and reliable insertion of the bolt; with large load bearing, the locking device can be applied to lock a large mechanism.
Owner:TONGJI UNIV

Special hanger for loading and unloading steel rails

The invention discloses a special hanger for loading and unloading steel rails, aiming at overcoming the defects of increase of loading-unloading cost, low loading-unloading efficiency and unsafety caused by damage and scrap of steel ropes as the steel rope is buckled at two ends of a steel rail for lifting and unloading conveying in the prior art. In a vertical supporting frame, a floating support is provided with lifting lugs which are movably connected with the upper ends of two pull rods which are eudipleural, the lower ends of both pull rods are movably connected with two rotating tongues which are oppositely arranged, and the rotating tongues are respectively and oppositely supported on the supporting frame; the supporting frame and the rotating tongues are provided with a locking device which can enable two tongue tips of the rotating tongues to oppositely rest on the horizontal position when the lifting lugs are lifted and to rest on the vertical position when the two tongue tips are put down. As the supporting frame is provided with the locking device which can enable the tongue tips of both rotating tongues to oppositely rest on the horizontal position and the vertical position, the tongue tips of both rotating tongue tips can be hooked and unhooked at the lower edge of the rail surface of a steel rail, thereby the steel rail down can be lifted and put down. The special hanger for loading and unloading steel rails has the advantages of no need of steel rope buckles, high efficiency, no consumption of raw materials, low loading and unloading cost, simple operation and safe and reliable use.
Owner:QINGDAO PORT GRP

Micro-adjusting mechanism

InactiveCN101775467AImproving the quality of intermediate frequency heating treatmentHeight fine-tuning is effortlessIncreasing energy efficiencyFurnace typesMiddle frequencyEngineering
The invention relates to a micro-adjusting mechanism, which comprises an installation board (1), a left bracket (8) and a right bracket (10) with an oblique surface, the left and the right brackets with the oblique surface form a V-shaped bracket (14), and is also provided with a pair of supports(2, 2)which are respectively arranged on two ends of the installation board and are provided with a supporting hole and a reverse-flighted screw (5) which is respectively supported inside the supporting holes of the supports and is provided with two thread parts with different threading direction, the reverse-flighted screw which is supported inside the supporting hole of the support extends towards the outer side from any supporting hole, the left and the right brackets are respectively provided with an inner thread which is parallel to the bottom surface, the inner threads of the left and the right brackets are respectively screwed with the two thread parts of the reverse-flighted screw, when the reverse-flighted screw rotates, the relative distance to the left and the right brackets which are screwed with the reverse-flighted screw is varied, so the micro height variation of the steel pipe seam caused by the factors such as deformation and curvature of the steel pipe which is arranged on the oblique surface during the middle-frequency heating process can be micro-adjusted.
Owner:SHANGHAI ZHUGUANG MACHINERY

Multifunctional pruner

The invention discloses a multifunctional pruner, which relates to a landscaping power machine for pruning shrub fences. The structure of the multifunctional pruner generally comprises a blade module, a shell, a connecting frame, a main handle, a sub handle and the like, wherein the connecting frame is rotationally connected to the shell in an axial direction at a fixed angle; and the main handle is rotationally connected to the connecting frame in a radial direction at a fixed angle; therefore, the whole multifunctional pruner has functions that fixed-angle axial rotation and fixed-angle radial rotation can be simultaneously achieved; after the two functions are combined with each other, various use states of the pruner can be formed; therefore, the improved pruner is convenient for use requirements in various working places; moreover, a fixed-angle rotating locking structure also has the advantages of flexibility for locking, reliability, safety and the like.
Owner:NINGBO EAST ENVIRONMENTAL PROTECTION MACHINERY CO LTD +1

Surgical robot and mechanical arm thereof

ActiveCN105411680ASafe and reliable rotationSafe and reliable lockingSurgical robotsBrake torqueSurgical robot
The invention discloses a mechanical arm. The mechanical arm comprises arm racks and a swing device arranged between the arm racks; the swing device comprises a first sleeve, a second sleeve, a speed reducer and a brake; the output shaft of the speed reducer is fixed to the first sleeve; the input shaft of the speed reducer is fixed to a braking rack of the brake; the second sleeve is fixed to a brake component of the brake; the brake is released to enable the braking rack to be separated from the brake component, at the moment, the position of the mechanical arm can be adjusted through mutually rotating the first sleeve and the second sleeve, after the mechanical arm reaches a specific position, the brake is locked, the brake torque of the brake is amplified through the output shaft of the speed reducer, the output shaft of the speed reducer cannot rotate and thus the first sleeve and the second sleeve cannot rotate relatively. The position of the mechanical arm is adjusted mutually and intuitively, and large torque braking is realized through the brake and the speed reducer, as a result, the swing operation of the mechanical arm is simple and rapid, and the locking is safe and reliable. The invention further discloses a surgical robot comprising the mechanical arm.
Owner:CHONGQING JINSHAN MEDICAL ROBOTICS CO LTD

A locking method and related electronic equipment

The embodiment of the invention discloses a locking method and related equipment, the method is applied to electronic equipment, the electronic equipment comprises a processor and a locking control circuit, and the locking control circuit can operate when the electronic equipment is in a power-off state and a power-on state. The method comprises the steps that the locking control circuit modifiesa state identifier into a first state identifier when the electronic equipment needs to be locked, and the first state identifier is used for indicating that the electronic equipment needs to be locked and is not locked; the locking control circuit controls the electronic equipment to be restarted; the processor reads the state identifier in the restarting stage of the electronic equipment; and when the processor judges that the state identifier is the first state identifier, the electronic equipment is locked. According to the embodiment of the invention, the electronic equipment can be safely locked.
Owner:HUAWEI TECH CO LTD

Ornament chain shackle

InactiveCN104433014ANo sheddingThere will be no self-tripping phenomenonBraceletsWrist-watch strapsEngineeringShackle
The invention relates to an ornament chain shackle. The ornament chain shackle comprises a male buckle, a female buckle, a lock sleeve, a chain connection piece and a lock barrel, wherein the outer end faces of the male buckle and the female buckle are sleeved by the chain connection piece; the outer ends of the male buckle and the female buckle are sleeved by the lock barrel; a limiting locking structure for enabling the chain connection piece to be in reliable sleeve joint with the male buckle and the female buckle is further arranged between the lock barrel and the chain connection piece; one end of the lock sleeve is sleeved by the female buckle and a locking structure is further arranged between the female buckle and the lock sleeve; the other end of the lock sleeve is sleeved by the male buckle; the inner end of the male buckle and the inner end of the female buckle are in mutual sleeve joint; a locking structure is further arranged between the male buckle and the lock sleeve; and when the lock sleeve rotates, the locking structures at the two ends of the lock sleeve are used for enabling the male buckle and the female buckle to be reliably and firmly locked and be in sleeve joint. The ornament chain shackle has the advantages that the locking and the connection are reliable, releasing cannot occur, the locking, the detaching and the mounting are convenient, the appearance is simple and beautiful; a consumer can conveniently and freely match ornaments, the structure is simple, the reliability is high, the durability is good and the like.
Owner:吴柏熙

Negative pressure square cabin clinical check module

PendingCN111561191AAvoid enteringMeet the requirements for the prevention and control of infectious diseasesMechanical apparatusLighting and heating apparatusMedicineEngineering
The invention relates to a negative pressure square cabin clinical check module. The negative pressure square cabin clinical check module includes a clinical check unit, a disinfection and sterilization unit, and an operation unit; the same sides of the clinical check unit and the operation unit are correspondingly connected with medical channel units through channel devices, and the other sides of the clinical check unit and the operation unit are correspondingly connected with patient channel units through the channel devices; the other sides of the patient channel units are connected with the disinfection and sterilization unit through the channel devices, and the lateral parts of the clinical check unit, the disinfection and sterilization unit, and the operation unit are respectively connected with negative pressure cabin bodies; air supply and filtration efficiency of the negative pressure cabin bodies is greater than or equal to 99.9% @ 0.3 [mu]m, and air exhaust and filtering efficiency of the negative pressure cabin bodies is greater than or equal to 99.9% @ 0.3 [mu]m to 0.5 [mu]m; and the negative pressure cabin bodies enable the formation of the negative pressure difference not less than 20 Pa between outer side environment and the clinical check unit, the disinfection and sterilization unit, and the operation unit, and the negative pressure cabin bodies enable the formation of negative pressure difference not less than 10 Pa between the outer side environment and the medical channel units, the patient channel units, the channel devices. According to the negativepressure square cabin clinical check module, main clinical check and analysis in the treatment of infectious diseases can be realized, the negative pressure function is brought, the channel devices have the telescopic function, and effective check and treatment places can be provided for natural disasters, local wars, infectious disease prevention and control, and the like.
Owner:SUZHOU JIANGNAN AEROSPACE MECHANICAL& ELECTRICAL IND CO LTD

Cup

The invention discloses a water cup, which comprises a joint head fixedly connected to the cup body through a line and a cup seat mated with the joint head, the left end surface of the cup body is fixedly used with an arm hand and the right end surface is provided with a device for pouring water. Out of the cup mouth, the bottom of the cup holder is provided with an insertion cavity with the cavity opening downward, and the center of the top wall of the insertion cavity is provided with an electrical connection block. The overall structure of the invention is simple, and the joint head is fixed safely and reliably. The head is partially locked first, then the joint head is powered on, and then the joint head is completely locked, and when the joint head is pulled out, the power is first cut off and then fully unlocked. The locking and unlocking operations of the joint head can be controlled by a motor Finishing, saving time and effort, greatly increasing the use and extraction efficiency of the joint head, effectively avoiding electric shock accidents when using and pulling out the joint head, and ensuring the safety of people's lives.
Owner:叶维

Straight push type steel dam

The invention discloses a straight push type steel dam. The straight push type steel dam comprises a steel dam door leaf arranged between a left side wall and a right side wall. The straight push typesteel dam is characterized in that the bottom of the steel dam door leaf is connected with a dam body through a bottom cross shaft, and the steel dam door leaf swings around the bottom cross shaft; one or more pits in a row are formed in the position, on the air face of the steel dam door leaf, of the dam body; lifting oil cylinders are arranged in the pits, the front ends of piston rods in the lifting oil cylinders jack the back of the steel dam door leaf, the pistons stretch and shrink to push the steel dam door leaf to swing upwards or downwards, the front ends of the piston rods on the side close to the bottom cross shaft are connected with stay ropes, the other ends of the stay ropes are fixed to the positions, between the lifting oil cylinders and the bottom cross shaft, of the dambody, along with the stretching-out action of the piston rods, the piston rods are obliquely pulled by the stay ropes to one side of the steel dam door leaf, and the front ends of the piston rods always jack the steel dam door leaf; and limiting devices for applying multi-position positioning to the steel dam door leaf are arranged between the left side wall and the steel dam door leaf and betweenthe right side wall and the steel dam door leaf, the limiting devices are spring bolts stretching and shrinking laterally, and when the spring bolts stretch out, downward swinging of the steel dam door leaf is stopped.
Owner:浙江河好闸门科技有限公司

Wireless detection device for safety pressure bar locking of amusement equipment

The invention discloses a wireless detection device for safety pressure bar locking of amusement equipment, comprising a seat glass steel and a console. The inner wall of the seat glass steel is fixedly connected with a fixing member, and one end of the fixing member is rotatably connected with a gas spring, a connecting plate is rotatably connected to an end of the gas spring away from the fixingmember, a safety pressure bar is fixedly connected to an end of the connecting plate away from the gas spring, and a ratchet device is arranged at the connection between the safety pressure bar and the connecting plate. One end of the safety pressure bar, far away from the ratchet device, is fixedly connected with a pressure bar frame, the inner wall of the seat glass steel is rotatably connectedwith a locking limit bar through a rotation shaft, and one side of the locking limit bar, near the end of the ratchet device, is provided with a first pawl corresponding to a ratchet. The wireless detection device has the advantages of simple structure, easy operation, safety locking of the passengers, avoidance of loss caused by manual judgment and improvement of safety of play, and is suitablefor wide popularization.
Owner:何启全
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