140results about How to "Simple locking structure" patented technology

A movable door mounting assembly includes a stud assembly and a trolley assembly having a spring-biased cam piece that pivots between a normal position, which allows the trolley assembly to move freely on the track, and a locked position, which causes a locking surface on the cam piece to frictionally engage with a top surface of the track and hold the trolley assembly in place while the door is being hung. A catch in the stud assembly engages with the cam piece when the mounting assembly is fully assembled. Inserting the stud assembly into the trolley assembly, releases the cam piece from its locked position and, at the same time, positions the catch so that it engages with the cam piece when the door is hung.

A swivel-type portable flash device includes a C-shaped swivel cover that rotates (swivels) relative to a housing between an open position in which a plug connector is exposed for insertion in a host system, and a closed position in which the plug connector is covered and protected by the swivel cover. The swivel cover is permanently rotatably connected to the housing by way of ring-shaped protrusions that are movably engaged inside corresponding recessed ring-shaped grooves formed in upper / lower walls of the housing, whereby the swivel cover is manually rotatable relative to the housing between the opened and closed positions. The swivel cover also includes locking structures (e.g., locking notches) disposed on the ring-shaped protrusions, and the housing includes second locking structures disposed in the recessed ring-shaped grooves, where the first locking structures operably engage the second locking structures to prevent rotation of the swivel cover when the plug connector is in the closed position.

The present invention is a working machine in which apparatus disposed in an outer peripheral portion of the base machine is covered with a openable guard cover, a window for maintenance, which is opened and closed by a window cover, is provided in front surface of the guard cover, and a locking mechanism, which locks the guard cover in a closed mode and unlocks the guard cover by being operated from the outside, is provided in the inside of the window. According to the present invention, the locking mechanism for the guard cover can be simplified and the guard cover can be made hard to be opened by unauthorized persons.

An electric anti-impact lock with spring accumulator comprises a lock shell; a pivot keeper for locking door with a latch portion and a tail portion, the door can be opened when the latch portion pivoting into the shell, the door being locked when the latch portion pivoting outside the shell; a device for locking keeper comprising a slideable block bar, the keeper is locked when the slideable block bar being against the tail portion, the keeper is turnable when the slideable block being moved away; a anti-impact device having a reinforce structure, which bears a impact from the door through the keeper and the block bar; and a device for locking block bar is a block pin device with spring accumulator, the block pin shoots out to stop moving of the block bar when power on, thereby, the door being locked, the block pin withdrawing to free the stop when power on in reverse pole, the door can be opened. The new lock solves the problems of weakness and lock death for current electromagnetic locks in market. The cost of the new lock is lower and the manufacture is easy.

The invention discloses a voltage detection circuit and an operating method thereof. The device used in the method is composed of a fixed socket and a power-on plug, wherein the fixed socket includesa base, the base is internally provided with an inserting slot with the opening facing upwards, the lower end wall of the inserting slot is provided with left-right symmetrical power-on jacks with theopenings facing upwards in a communicated manner, the lower end walls of the power-on jacks are fixedly provided with a power-on device, the inserting slot is provided with lifting sliding slots withthe openings being opposite to each other in a communicated manner, the lower side of each lifting sliding slot is provided with an annular slot in a communicated manner at the periphery of the inserting slot, the annular slots are respectively provided with front-back symmetrical sliding slots in a communicated manner, each sliding slot is slidably provided with a locking rod, the left side of each sliding slot is provided with a limiting slot with the opening facing towards the right in a communicated manner. The device is simple in structure and convenient to operate, the power utilizationsafety is ensured by double locking such as rotation locking and pressing locking, the locking structure is simple and easy to operate, and the use is facilitated; and secondly, the power utilizationstability is guaranteed through an overload protection circuit.

The invention discloses a swivel and closure construction method for a large-span continuous beam crossing an existing station. A constructed large-span continuous beam adopts a reinforced concrete box beam crossing the existing station and the front end and the rear end of a span are supported on a second buttress and a third buttress respectively; the swivel and closure construction process comprises steps as follows: step one, swivel system construction: a swivel system is constructed at the bottom of each of the second buttress and the third buttress and comprises a lower support disc, an upper rotating disc, a bridge swivel spherical hinge and a swivel traction system, multiple support legs are arranged at the bottom of the upper rotating disc, and an annular slide way allowing the support legs to slide is formed on a lower bearing platform; step two, construction of the second buttress and the third buttress; step three, construction of a front side beam body and a rear side beam body; step four, plane swivel construction; step five, side span closure construction; step six, mid-span closure construction. According to the method, the steps are simple, the design is reasonable, the construction is simple and convenient, the use effect is good, the swivel and closure construction process of the large-span continuous beam crossing the existing station can be completed simply, conveniently and rapidly, and the construction process is safe.

The invention discloses a swivel construction method for a large span continuous beam which spans an existing station. The constructed large span continuous beam is a reinforced concrete box beam which spans the existing station and the two ends of a middle span of the constructed large span continuous beam are supported on a second buttress and a third buttress correspondingly. A swivel construction process includes the steps that (1) swivel system construction is performed, specifically, swivel systems are constructed at the bottom of the second buttress and the bottom of the third buttress correspondingly, each swivel system comprises a lower supporting disc, an upper rotary disc, bridge swivel spherical hinges and a swivel hauling system, multiple supporting feet are disposed at the bottom of the upper rotary disc, and a lower bearing platform is provided with an annular sliding way where the supporting feet slide; (2) construction of the second buttress and the third buttress is performed; (3) construction of a front side beam body and a rear side beam body is conducted; and (4) plane swivel construction is carried out, specifically, the plane swivel construction is performed through the two swivel systems and the two swivel hauling systems. The swivel construction method for the large span continuous beam which spans the existing station is simple in steps, reasonable in design, easy and convenient to construct, good in using effect, capable of easily, conveniently and rapidly finishing the swivel construction process for the large span continuous beam spanning the existing station and safe in construction process.

A molding device for the production of containers in thermoplastic material by blowing or blow-drawing, including a mold with two mold halves mutually mobile and provided with a locking device with first and second lock elements, in the form of catches, extending over the whole height of the respective mold halves and a projecting wing on one mold half, including a rotation surface on which a mobile piece is applied over the whole height thereof which includes the second lock element, such that, on blowing, the forces are taken by said mobile piece over the height of the mold by means of the rotation surface.

The invention relates to a plug, a socket and a high-voltage interlocking connector assembly. A plug housing is provided with a first locking piece, one end, which is oriented towards the socket, of the first locking piece is provided with a lock hook, a socket housing is provided with a lock catch in hooking cooperation with the lock hook, and the other end of the first locking piece is an unlocking end; the plug housing is also provided with an elastic cantilever, the lower end of the suspension extending end of the elastic cantilever is provided with a lock block, the socket housing is provided with a block in stopping cooperation with the lock catch in an insertion direction, and when the elastic cantilever is compressed, the elastic cantilever drives the lock block to move downwards and can be staggered from the block so as to go beyond the block; and when the lock hook hooks the lock catch, there is a certain distance between the lock block and the block in the insertion direction. The high-voltage interlocking connector assembly realizes secondary separation of the plug and the socket through the first locking piece and the elastic cantilever, the structure is simple, and the operation is convenient.

The present invention is a working machine in which apparatus disposed in an outer peripheral portion of the base machine is covered with a openable guard cover, a window for maintenance, which is opened and closed by a window cover, is provided in front surface of the guard cover, and a locking mechanism, which locks the guard cover in a closed mode and unlocks the guard cover by being operated from the outside, is provided in the inside of the window. According to the present invention, the locking mechanism for the guard cover can be simplified and the guard cover can be made hard to be opened by unauthorized persons.

The invention discloses a movable joint assembly which comprises a ball seat and a ball head. The ball seat comprises a ball seat body. A ball head cavity is arranged on the ball seat body. The ball head matched with the ball head cavity is arranged in the ball head cavity. A strip-shaped gap is formed on the ball seat body and extends out of an opening of the ball head cavity. A surrounding locking mechanism is arranged at the position, corresponding to the outer side of the ball seat body, of the ball head cavity. When the surrounding locking mechanism tightly holds the position, corresponding to the ball head cavity, of the balls seat body from the outer side, the strip-shaped gap allows the parts, on the two sides of the strip-shaped gap, of the ball seat body to deform inwards so as to jack and lock the ball head. The movable joint assembly has the beneficial effects that the ball seat body has certain deformation cavity, the ball head can be placed conveniently and can be freelyadjusted to the proper angle, then the ball head is locked by the surrounding locking mechanism, and the structure is simple and reliable.

The invention belongs to the technical field of parking management, and particularly relates to a temporary parking guidance management system based on big data intelligent analysis, which comprises aserver side and a user side. The server side comprises a vehicle information acquisition unit, a planning analysis unit, an information storage unit, a charging unit, a credit unit and an operation management unit. According to the invention, the unoccupied parking spaces in the community can be fully utilized, the utilization rate of the parking spaces is improved, the problem of difficult parking is solved, meanwhile, the unoccupied parking spaces in the community in the same area are coordinated and allocated, the parking management difficulty in the community is reduced, and the management efficiency is improved.

The invention belongs to the field of plastic production and processing technology, and discloses a plastic rod handling device. The plastic rod handling device includes a handling dolly, and a hanger and a installation platform are mounted on the handling dolly, and the hanger is equipped with horizontal guide rails, and the guide rails are slidably matched with a clamping mechanism. The clamping mechanism includes a cylinder rod vertical downwards inserted into the installation platform, and a left rack is perpendicularly connected to one side of the cylinder rod and is meshed with a left gear, and a right rack is perpendicularly connected to the other side of the cylinder rod and is meshed with a right gear. A gear shaft of the left gear is connected with a left gripper, and a gear of the right gear is connected with a right gripper. The left gripper and the right gripper are mirror symmetry, and are equipped with locking mechanisms. The plastic rod handling device has a simple structure, and can save the manpower and greatly improve handling efficiency.

The invention discloses a simple self-locking foldable connector which comprises an upper connector body, a lower connector body and a handle, wherein the upper connector body, the lower connector body and the handle are connected with a vertical pipe. The upper connector body, the lower connector body and the handle are connected through a hinge shaft, a wedge-shaped groove is formed in an inner wall in a cavity of the lower connector body opposite to the hinge shaft, and a wedge-shaped locking flange capable of being inserted into the wedge-shaped groove is arranged on the lower end face of the upper connector body. The simple self-locking foldable connector further comprises eccentric flat shafts between the hinge shaft and a hinge shaft installing hole of the handle and between hinge shaft installing holes of the lower connector body. The lower connector body is provided with the wedge-shaped groove, the upper connector body is provided with the locking flange matched with the wedge-shaped groove, when the handle is pulled to lock a folding mechanism, the locking flange of the upper connector body is inserted into the wedge-shaped groove of the lower connector to conduct locking directly, a locking structure is simple, part quantity is small, and installing is convenient.

The present invention provides an automotive pretensioner seatbelt system, which includes a seatbelt webbing, a slip ring, a buckle, a pretensioner and a retractor. One end of the webbing is fixed to the anchor site of the vehicle body, while the other end of the webbing goes through the slip ring and links to the retractor. The pretensioner includes a stroke enlargement mechanism and a power source. The stroke enlargement mechanism includes a fixed component and a movable component. The webbing is wound around the fixed component and the movable component. The stroke enlargement mechanism ensures that the length of webbing retracted by the pretensioner is greater than the displacement of the movable component. Compared to conventional seatbelt systems, this seatbelt system allows more webbing to be retracted in the same time duration; in other words, it takes less time to retract a webbing of the same length. In this way, pretension of the present invention can be realized more efficiently.

This invention discloses an electronic lock, including cam lock assembly, electronic control assembly, lock latch assembly and latch bolt assembly. The latch bolt assembly includes latch bolt, latch bolt bracket and latch shaft. The latch bolt mentioned is pivoted at the latch bolt bracket, while latch shaft is translational positioned at it. By the latch shaft, cam bolt and electronic control assembly can connect with latch bolt and latch component in sequence. The latch shaft is configured with reset and compression spring, while latch bolt is with torsion spring and latch mounting parts, then the latch is able to linkage connect through latch mounting parts. From stated above, we can know the invention is ingeniously designed to lock / unlock latch parts, having lock assembly and electronic control assembly sharing one set of lock bolt (latch bolt). It can be seen that the invention effectively simplifies the existing lock structure.

The invention discloses a handrail box lock and a handrail box, relates to the technical field of automobile interior design, and aims to solve the problems that an existing handrail box lock is complex in structure and unstable in locking. The handrail box lock comprises spring bolts, and locking structures are arranged corresponding to the spring bolts and comprise buckles which are matched with the spring bolts and can rotate. Elastic parts are arranged in locking space, used for accommodating the spring bolts, of the buckles, the buckles are sleeved with rotating rods in a slideable mode, and the rotating rods are rotatably arranged on operating parts. In the locking process, the spring bolts force the buckles and the rotating rods to jointly rotate to open and enter the locking space, the operating parts make the rotating rods and the buckles reset, and the elastic parts make the spring bolts abut against the buckles. In the unlocking process, the operating parts are pressed to make the rotating rods and the buckles to jointly rotate to open, and the spring bolts are separated from the locking space under the effect of the elastic parts. The handrail box lock is used for locking the automobile handrail box.

The invention provides a folding cart frame and a child cart and relates to the technical field of non-motor vehicles. The folding cart frame and the child cart comprise a chassis, push rods, a push handlebar and upper side bars. One end of each push rod and one end of each upper side bar are rotationally connected with the chassis through a push rod lower connection rod and an upper side bar connection rod respectively, the other end of each push rod and the other end of each upper side bar are rotationally connected with the push handlebar respectively, and the push rods are further rotationally connected with the chassis through rear supporting rods. Push handlebar buttons used for locking the push handlebar are arranged on the push handlebar, and the rotation of the push handlebar can drive locking structures in the push rod connection rods to unlock. Each push rod and the corresponding push rod connection rod are rotationally connected, each upper side bar and the corresponding upper side bar connection rod are rotationally connected, and each rear supporting rod and the corresponding push rod are rotationally connected. The folding cart frame and the child cart are convenient to fold, and the folded structure is integrated.

The invention provides an unmanned plane for plant protection. The unmanned plane comprises an installation board mechanism, an undercarriage mechanism, a spraying mechanism, a folding and locking mechanism, a mechanical arm mechanism, a motor base mechanism, and a power mechanism. The installation board mechanism comprises an upper center plate and a lower center plate, which are oppositely arranged. A battery support plate is fixed on the surface of the upper center plate. A flight control plate is fixed on the surface of the lower center plate. The undercarriage mechanism comprises an undercarriage top plate fixedly connected to the bottom surface of the lower center plate. A steering engine base is fixed on the bottom of the undercarriage top plate and is connected to a steering enginerocking bar. The steering engine rocking bar is connected to a rotary sleeve through a rocker arm. The rotary sleeve sleeves a T shape scaffold. The spraying mechanism comprises a medicine barrel, which is fixedly connected to the lower part of the lower center plate, a conduit, which is communicated with the medicine barrel, and an electric water pump, which deliver medicinal liquor in the medicine barrel to the conduit. The folding and locking mechanism comprises a locking mechanism, which is fixed on the surface of the upper center plate and is used to lock the mechanical arm mechanism. The motor base mechanism is fixedly connected to the mechanical arm through an engine base sleeve. The structure is simple, the operation is convenient, and the cost is low.

The invention discloses a mobile gas cylinder dumping prevention device. The device comprises an upper dumping prevention ring, a lower dumping prevention ring and support legs; the upper dumping prevention ring and the lower dumping prevention ring are concentrically arranged; three support legs surround the outer peripheries of the upper dumping prevention ring and the lower dumping prevention ring; the upper dumping prevention ring is provided with an upper ring left movable joint and an upper ring right movable joint; the lower dumping prevention ring is provided with a lower ring left movable joint and a lower ring right movable joint; the upper ring left movable joint and the lower ring left movable joint are corresponding up and down; and the upper ring right movable joint and the lower ring right movable joint are corresponding up and down. The mobile gas cylinder dumping prevention device is produced by the upper dumping prevention ring, the lower dumping prevention ring and the support legs, and is simple and practical in structure and low in production cost; and two movable joints are arranged on the upper dumping prevention ring and the lower dumping prevention ring, so that openings are formed in the mobile gas cylinder dumping prevention device for conveniently putting gas cylinders in the device, and the carrying of the gas cylinders into the device from top is saved.

The invention discloses a foundation bolt pre-burying auxiliary welding device, and belongs to the technical field of electric auxiliary tools. The foundation bolt pre-burying auxiliary welding device comprises a bottom plate, a positioning sleeve, a sliding block and a locking part, wherein sliding grooves are formed in the bottom plate radially by taking the central point of the bottom plate as a circle center; central included angles in a length direction among adjacent sliding grooves are equal; scales corresponding to lengths of the sliding grooves are formed in one side in the length direction of the sliding grooves in the bottom plate; a positioning hole is formed in the axial direction of the positioning sleeve; an opening is formed in one end of the positioning sleeve; the end, where the opening is formed, of the positioning sleeve serves as an open end; the bottom wall of the positioning hole serves as a positioning surface; the open end penetrates through the sliding grooves in the bottom plate and is then connected with the sliding block; a positioning boss is arranged, or a clamping plate is connected, onto the outer wall, adjacent to the open end, of the positioning sleeve; a connecting hole matched with the open end is formed in the sliding block; a locking hole matched with the locking part is formed in the sliding block; a calibration device is arranged on the sliding block. By adopting the foundation bolt pre-burying auxiliary welding device, a foundation bolt can be welded by only one person, the working efficiency is high, and the welding quality is good.

The invention provides a prosthesis locking assembly for tibia and an artificial knee joint prosthesis, which relate to the technical field of medical instruments, the prosthesis locking assembly comprises a tibia platform, a tibia liner and a fixing part; the tibia liner is clamped on the tibia platform, the movement of the tibia liner is limited, the tibia liner is prevented from moving away from the tibia platform; meanwhile, the fixing part is inserted into a fixing groove defined between the tibia platform and the tibia liner; resistance for preventing the tibia liner from rotating relative to the tibia platform is formed; the tibia liner is fixed on the tibia platform, the problem that in the prior art, a locking structure between a tibia support and the tibia liner is complex is solved. The thin wall and the thin groove can weaken the connection firmness between the tibia support and the tibia liner, abrasion can be caused after long-time use, connection is not firm, and the service life is short are solved, and the technical effects that the locking structure between the tibia platform and the tibia liner is simplified, the connection firmness is improved, and the service life of the tibia prosthesis is effectively prolonged are achieved.

The invention provides tool combination equipment for communication cable line maintenance, aims to solve the problems that time and labor are wasted and potential safety hazards exist when a worker grabs a cable with hands, and belongs to the technical field of cable maintenance. The tool combination equipment comprises a telescopic mechanism; the telescopic mechanism is of a circular structure, a connecting sleeve is installed above the telescopic mechanism, and a through hole of a T-shaped structure is formed in the connecting sleeve; a connecting rod is connected to the inner side of the connecting sleeve in a sliding mode, a sliding mechanism is installed on the inner side of the connecting rod, and an electroprobe is installed on the connecting rod. When the connecting rod is pulled, the distance between two groups of rollers is shortened, so that rolling wheels clamp a communication cable; the arrangement of the rolling wheels facilitates the whole displacement on the cable; a supporting seat A and a supporting seat B are provided with bolts for fixing the rolling wheels; after the rolling wheels are fixed, the cut cable is convenient to move; and the phenomenon of human body electric shock caused by hand contact with a cable fracture position is avoided.

The invention provides a heat processing apparatus used for the heat treatment of a workpiece, wherein the rod shaft part of the upper portion of a workpiece or the cup-shaped body of the lower portion of the workpiece is subjected to heat treatment by the heat processing apparatus. The heat processing apparatus comprises a temporary phase determination mechanism, a formal phase determination mechanism, a workpiece lower portion heat treatment part and a workpiece upper portion heat treatment part. The heat processing apparatus also comprises one ore more than two of the following members: a desk type conveying mechanism and a suspension bracket type conveying mechanism used for confirming the position of a workpiece or a centering abutting member; a processing component symmetrically equipped with rotary clamping mechanisms with respect to a rotary shaft; a heat treatment head for fixing a fixed base at a predetermined position and connected with a workpiece cooling water pathway; a heating coil for connecting a powered terminal and a power supply terminal and connected with the workpiece cooling water pathway; a workpiece upper portion heating unit for fixing the heating coil of the rod shaft part and the heating coil of the cylinder shaft part at different layers; a rotary cooling device for cooling a workpiece during rotation; and a locking construction for preventing the driving of a heat treatment production line when the locking of an open-close door is unlocked.

The invention provides a luggage case type folding stroller which forms a luggage case shape after being folded. The stroller comprises a bottom frame. The bottom frame comprises two bottom frame sideedges; front wheels and rear wheels are arranged near the two ends of the side edge of the bottom frame respectively; lower folding rods are hinged to the front wheel ends of the side edge of the bottom frame; folding sliding blocks sliding between the side edges of the bottom frame are connected between the lower folding rods and the side edge of the bottom frame through connecting rods to forma slider-crank mechanism; the front wheels are connected with front wheel supports, and the front wheel supports are rotatably connected with the folding sliding blocks; any one of the side edge of the bottom frame and the front wheel supports is provided with a spiral guide groove, the other one is provided with a short guide rod, the short guide rod is arranged in the spiral guide groove, and the front wheel supports are driven to move and rotate through forward-backward movement of the folding sliding blocks; a bottom shell of the box body is arranged on the bottom frame, a top shell of thebox body is arranged on the upper folding rod, and after the stroller is folded, the bottom shell and the top shell are aligned to form a trunk-shaped shell; and a front wheel containing groove for containing folded front wheels is formed in one side of the bottom of the bottom shell.

The invention provides an artificial tibia prosthesis and an artificial knee joint, which relate to the technical field of medical instruments, the artificial tibia prosthesis comprises a tibia support, a tibia liner and a connecting part; the tibia liner is clamped on the tibia support; the tibia liner is limited to move away from the tibia support; meanwhile, the connecting part extends into a limiting groove defined between the tibia support and the tibia liner; the resistance for preventing the tibia liner from sliding relative to the tibia support is formed; further, the tibia liner is fixed on the tibia support; the problem that in the prior art, a locking structure between the tibia support and the tibia liner is complex is solved. The technical problems that connection between thetibia support and the tibia liner is weakened through the thin wall and the thin groove, the abrasion is caused after long-time use, and the service life is short are solved, and the technical effectsthat the locking structure between the tibia support and the tibia liner is simplified, and the service life is effectively prolonged are achieved.

The invention provides a clamp device for an endoscope, and relates to the technical field of medical instruments. The clamp device for the endoscope includes a clamping piece support, a first clamping piece, a second clamping piece, a first connecting piece, a second connecting piece and a locking member. The first clamping piece and the second clamping piece are rotatably connected to the clamping piece support. The first clamping piece is rotatably connected to the first connecting piece, and the second clamping piece is rotatably connected to the second connecting piece. The first connecting piece and the second connecting piece are respectively connected with the locking member in the transmission mode. The locking member is located in the clamping piece bracket and can move within the clamping piece support to drive the first clamping piece and the second clamping piece to be closed or open. When the first clamping piece and the second clamping piece are closed, the locking member can be matched with the clamping piece support to lock the first clamping piece and the second clamping piece in the closed state. The clamp device for the endoscope is simple in locking structure and reliable in performance.