33results about How to "Increase the locking force" patented technology

The invention discloses a quickly-separated disconnecting switch, comprising an outer seat, a moving contact, a moving arcing contact, a fixed contact, a fixed arcing contact, an elastic body and a limiting mechanism, wherein the moving arcing contact can slide relative to the moving contact; the elastic body can store energies when the moving contact slides away from the moving arcing contact; the limiting mechanism is used for arranging the relative sliding extreme positions between the moving contact and the moving arcing contact; an outer ring at the tail end of the outer wall of the moving arcing contact is provided with a male buckle in a raised mode; an inner ring at a port of the inner wall of a second conductive slot of the fixed arcing contact is provided with a female buckle; the moving contact is far away from the fixed contact in the process of separating brake; the male buckle is coordinated with the female buckle to connect the moving arcing contact with the fixed arcing contact, the moving contact slides away from the moving arcing contact oppositely, and the elastic body stores the energies; and after the moving contact slides away from the moving arcing contact oppositely to the extreme position, the moving arcing contact is separated from the fixed arcing contact under the action of the limiting mechanism, and the energies stored by the elastic body are released to quickly separate the moving arcing contact from the fixed arcing contact.

A power distribution cabinet provided with a circular corner protrusion portion comprises a cabinet body (3) and a door plate (4). The frame of the cabinet body is provided with a locking insertion hole device (9), the corresponding edge of the door plate is provided with a cylindrical locking protrusion insertion head (8) used for being inserted into a cavity (96) of the locking insertion hole device (9), and the locking insertion hole device (9) comprises an end wall (91), a transverse side wall (99) and a body opposite to the end wall (91) so as to define the cavity (96).

The invention discloses a safety locking device and method for an explosive mixed loading vehicle, and belongs to the technical field of safety locking. The safety locking device comprises a lock shell and a spring bolt arranged in the lock shell, wherein one side of the spring bolt is provided with strip teeth; a driving cavity and a fixing seat are arranged outside the lock shell; a motor is arranged in the driving cavity; the output end of the motor is provided with a rotating shaft; a first bevel gear is arranged at one end of the rotating shaft; a second bevel gear matched with the firstbevel gear is arranged outside the first bevel gear; a rotating rod is arranged inside the second bevel gear, a circular gear matched with the strip teeth is arranged outside the rotating rod; an airbag is arranged on one side of the lock shell; an air pump is arranged in the fixing seat, one end of the air pump is connected with a connecting pipe; and the other end of the connecting pipe communicates with the air bag. According to the safety locking device and method for the explosive mixed loading vehicle, a side screw device is convenient to take and place, so that labor is saved, automatic locking of the side screw device is achieved, locking force is improved, and the problem that the side screw device loosens and falls off when the explosive mixed loading vehicle moves is solved.

The invention discloses a distribution cabinet with adjustable speed and solar energy power supply, comprising a cabinet (3) having a locking hole-inserting device (9) on a frame and a door plate (4) having a cylinder-shaped locking projected plug (8) on a corresponding rim, wherein the locking projected plug (8) is used for being inserted into a cavity (96) of the locking hole-inserting device (9). The locking hole-inserting device (9) comprises an end part wall (91), a transverse side wall (99) and a main body opposite to the end part wall (91) to form the cavity (96).

The invention discloses a grid selling cabinet. The grid selling cabinet comprises a server and a cabinet body, wherein the bottom of the cabinet body is provided with a base, the cabinet body is provided with a power module, a main controller, a wireless communication device, a display screen and a plurality of grid bodies, and the front end of each grid body is hinged with a grid door; the innerupper end of each grid body is provided with an electric control lock and a door lock control unit; the upper end of each grid door is provided with a locking cavity cooperating with the corresponding electric control lock; the outer surfaces of at least one grid doors are provided with payment two-dimensional codes; the main controller is connected to the power module, the display screen and door lock control units separately; the main controller is connected to the server through the wireless communication device. The grid selling cabinet has the advantages that the structure is simple, thecost is low, and unmanned retail can be achieved.

The invention discloses an exported washing machine safety door locking mechanism. The exported washing machine safety door locking mechanism comprises a washing machine body, a safety door body and locking mechanism bodies, wherein the washing machine body is provided with a round opening at the drum, the round opening is provided with the safety door body through a hinge, the edge of the round opening is circumferentially provided with the locking mechanism bodies at equal intervals, every locking mechanism comprises a mounting groove, and an extending passage is formed between the mountinggroove and the round opening. According to the exported washing machine safety door locking mechanism, the locking mechanism bodies are arranged at equal intervals along the safety door body and workcollaboratively to enhance the locking tightness of the safety door body; meanwhile, a safety pin is provided with a first locking area and a second locking area, which can be switched and reset through interaction of a first armature, a second armature, a first electromagnet and a second electromagnet to achieve the aim of adjusting the locking tightness.

The invention discloses an intelligent nursing device for psychiatric nursing, and mainly relates to the field of psychiatric restraint tools. The nursing device comprises a restraint ring, a rotatingring, a restraint rod and an air bag, wherein the restraint ring and the rotating ring are rotationally connected on a circumferential end face; sliding blocks which are in sliding fit in the axial direction of the restraint ring are arranged on the inner wall of the restraint ring; first ball joint seats are arranged on the sliding blocks; second ball joint seats with the same number as the sliding blocks are arrayed on the inner wall of the rotating ring in the circumferential direction; the two ends of the restraint rod are matched with the first ball joint seats and the second ball jointseats respectively; the air bag is fixed to an inner ring of the restraint ring; inflation and deflation of the air bag are achieved through a medical air source; a pulse detection piece is fixed to the air bag; the pulse detection piece is in signal connection with a stepping motor; and the stepping motor is triggered to be started by setting a lower limit threshold value of the heart rate. The nursing device has the beneficial effects that the locking is timely, constraint is fast, the four-limb behavior of a patient in a mania state is fast responded and constrained, limitation is reliableand safe, and the injury to the patient is greatly reduced.

The invention discloses a tapered tube orifice intersecting line cutting device and an assembly method. The tapered tube orifice intersecting line cutting device comprises a straight circular tube with guiding grooves, a plurality of right trapezoid wedges with different sizes and a jacking screw rod frame. The guiding grooves are axially formed along the straight circular tube which is mounted on a cutting bracket, the right-angle edges of the right trapezoid wedges are mounted in the guiding grooves of the straight circular tube, and rubber is arranged on the bevel edges of the right trapezoid wedges; the right trapezoid wedges with the different sizes are used for fixing tapered tubes with the corresponding sizes to the straight circular tube, and the jacking screw rod frame comprises a sleeve and a base used for supporting the sleeve; and the straight circular tube is sleeved with the sleeve, the sleeve is provided with a jacking screw rod which is used for jacking the right trapezoid wedges. The tapered tube orifice intersecting line cutting device is convenient to dismount and mount, simple in structure, high in universality and capable of ensuring the cutting precision.

The invention relates to a bayonet connecting structure and a bed. The bayonet connecting structure comprises multiple L-type grooves formed in a second plate and multiple convex pins arranged at the inner side of a first plate, the straight edge of the inner end of each L-type groove extends downwards, and each convex pin is embedded into the corresponding L-type groove; the bayonet connecting structure comprises a positioning pin groove formed in the first plate, a positioning hole formed in the second plate and a positioning pin, an embedding part embedded into the positioning pin groove is formed at the inner end of the positioning pin, the outer end of the positioning pin extends outwards to form a positioning part inserted into the positioning hole, and the positioning hole is located among the multiple L-type grooves. The positioning pin groove and the positioning hole are connected, the ends of the two plates are connected in a turning mode, and the positioning pin rotates downwards to generate acting force pressing downwards to form locking force; the convex pins on the first plate are embedded into the L-type grooves in the second plate, the first plate will drive the convex pins to be completely embedded into the inner ends of the L-type grooves under the action of gravity, connection is firmer, and locking force is larger.

Disclosed is a power distribution cabinet having cooling fans, comprising a cabinet body (3) having a locking insertion apparatus (9) at the left frame, and a door plate (4) having a cylindrical locking projection plug (8) at a corresponding edge. The locking projection plug (8) is operable to be inserted into a cavity (96) of the locking insertion apparatus (9). The locking insertion apparatus (9) comprises an end-portion wall (91), a horizontal side wall (99) and a body (98) opposite to the end-portion wall (91), thereby forming the cavity (96).

The invention discloses a double-stator direct-drive wind generating set in an impeller locking mode, and relates to the technical field of wind power generation. A cabin shell is arranged on a tower frame, and an electric appliance cabinet is arranged in the cabin shell; a wind measuring instrument on the outer side of the cabin shell is connected with the electric appliance cabinet, and a yaw motor is arranged on one side of the electric appliance cabinet and is connected with the right side of a disc type rotor; a locking device is connected with the left side of the disc type rotor; a plurality of middle stators are evenly arranged in the middle of the disc type rotor, and an outer stator is mounted on the outer walls of the middle stators; a hub is connected with the locking device; and one end of each impeller is connected with the hub. An impeller locking mechanism is large in movable space, and a double-stator control structure can relieve impact force of external force to parts; the disc type rotor is good in flexibility, good in locking effect, resistant to wear and long in service life; and the operation safety coefficient is high, and maintenance cost is low.

The invention discloses a linkage door lock for a cabinet. The linkage door lock comprises a locking device, a driving device, a guiding device and a hand wheel, wherein the locking device comprises a first locking assembly and second locking assemblies, the first locking assembly comprises a first body and a first bolt; one second locking assembly on any side comprises a second body and second bolts which are positioned on the second body and arranged oppositely; the driving device comprises a first driving rod, a second driving rod and third driving assemblies which are arranged oppositely; the guiding device comprises a first guiding assembly which is used for guiding the first bolt, and a second guiding assembly which is used for guiding second bolts on the two sides; the linkage door lock for the cabinet further comprises a limiting device which is used for limiting the movement stroke of the locking device. According to the linkage door lock for the cabinet provided by the invention, since a plurality of linkage locking points are arranged, the locking force is enhanced; the movement stroke of the locking device is controlled in a limiting mode, so that the direct contact with the locking device is avoided, and the damage probability of the linkage door lock for the cabinet is reduced.

The invention provides an adjustable lifting buckle locking device, comprising a substrate. The substrate is locked and installed on the top of an elevator in an abutted manner. The center position of the substrate is provided with a fixing hole used to install the device. One side of the substrate is provided with a locking plate used for locking. The center position of a support plate is provided with a T-shaped locking hole. Two sides of a fixing plate are provided with a first supporting plate and a second supporting plate used for supporting. The first supporting plate and the second supporting plate are isosceles right triangles. Beneficial effects of the device are that production cost is low, mechanism is simple, and operation is convenient. On the premise of the prior art, the device makes the locking structure in a special shape, so as to improve locking strength and ensure locking effect, and locking effect is better and the device is wide in application range.

The invention provides a pipeline connection fixing device. The pipeline connection fixing device comprises a base. The two ends of the base are provided with telescopic power devices correspondingly.The telescopic power devices are connected with the base. The extension directions of the telescopic power devices are opposite. The telescopic ends of the telescopic power devices are further connected with fasteners. The fasteners are used for connecting the two ends of a steel bar for locking a flange pipe and a rubber pipe. The pipeline connection fixing device has the advantages of being reasonable in structure and high in locking strength.

The invention discloses a self-locking height adjuster which comprises a guide rail. Two sides of the guide rail are provided with racks. The adjuster also comprises a sliding block connected with the guide rail in a sliding mode, wherein two gears are arranged on the sliding block, the two gears are meshed with the racks respectively, and a gap is formed between the two gears; and a locking assembly arranged on the sliding block and comprises a locking block, wherein the locking block slides relative to the sliding block to be clamped into or slide out of a gap between the two gears so as to lock or unlock rotation of the gears. In the application, the locking force of the locking block on the gear can be increased along with the increase of the stress of the gear, so that the danger caused by locking failure due to excessive instant stress of the height adjuster when an automobile accident occurs can be avoided.

The invention provides a furnace door safety locking device, which relates to the field of melting furnaces, and includes a sealed door, the sealed door includes a sealing plate, a pressure device is provided in the middle of the sealing plate, and the pressure device includes a pressure tube penetrating through the sealing plate, The pressure tube is provided with a piston slidingly connected with it, the top of the pressure tube is connected with a control mechanism, the control mechanism is in transmission connection with the locking mechanism, the locking mechanism is pneumatically connected with the pressure device, and the locking mechanism slides with the sealing plate connected, the side of the pressure pipe communicates with the sliding cylinder, and the sliding cylinder is slidably connected with the locking mechanism. In the present invention, the pressure in the furnace is used to move the piston in the pressure tube, thereby compressing the air in the pressure tube, and the pressure difference inside and outside the pressure tube is used to move the locking mechanism, so that the locking mechanism can connect the sealing plate and the furnace mouth more closely , increase the locking force, more secure.

The invention discloses a tapered tube orifice intersecting line cutting device and an assembly method. The tapered tube orifice intersecting line cutting device comprises a straight circular tube with guiding grooves, a plurality of right trapezoid wedges with different sizes and a jacking screw rod frame. The guiding grooves are axially formed along the straight circular tube which is mounted on a cutting bracket, the right-angle edges of the right trapezoid wedges are mounted in the guiding grooves of the straight circular tube, and rubber is arranged on the bevel edges of the right trapezoid wedges; the right trapezoid wedges with the different sizes are used for fixing tapered tubes with the corresponding sizes to the straight circular tube, and the jacking screw rod frame comprises a sleeve and a base used for supporting the sleeve; and the straight circular tube is sleeved with the sleeve, the sleeve is provided with a jacking screw rod which is used for jacking the right trapezoid wedges. The tapered tube orifice intersecting line cutting device is convenient to dismount and mount, simple in structure, high in universality and capable of ensuring the cutting precision.

A power distribution cabinet with roller grooves comprises a cabinet body (3) provided with locking insertion devices (9) on a frame and a door plate (4) provided with cylindrically locking bulge insertion heads (8) on the corresponding edges, wherein the locking bulge insertion heads (8) are inserted into cavities (96) of the locking insertion hole devices (9), each locking insertion hole device (9) comprises an end wall (91), a horizontal side wall (99) and a body (98) opposite to the end wall (91), and accordingly, the cavities (96) are defined.

The invention discloses a quickly-separated disconnecting switch, comprising an outer seat, a moving contact, a moving arcing contact, a fixed contact, a fixed arcing contact, an elastic body and a limiting mechanism, wherein the moving arcing contact can slide relative to the moving contact; the elastic body can store energies when the moving contact slides away from the moving arcing contact; the limiting mechanism is used for arranging the relative sliding extreme positions between the moving contact and the moving arcing contact; an outer ring at the tail end of the outer wall of the moving arcing contact is provided with a male buckle in a raised mode; an inner ring at a port of the inner wall of a second conductive slot of the fixed arcing contact is provided with a female buckle; the moving contact is far away from the fixed contact in the process of separating brake; the male buckle is coordinated with the female buckle to connect the moving arcing contact with the fixed arcing contact, the moving contact slides away from the moving arcing contact oppositely, and the elastic body stores the energies; and after the moving contact slides away from the moving arcing contact oppositely to the extreme position, the moving arcing contact is separated from the fixed arcing contact under the action of the limiting mechanism, and the energies stored by the elastic body are released to quickly separate the moving arcing contact from the fixed arcing contact.

The invention discloses a transportation unit suitable for GRC wallboards, which comprises a buckle bar, and the buckle bar includes a cross bar and a partition bar, buckle rings are respectively provided at both ends of the cross bar, and at least one ring groove is provided in the middle; One end of the bar is screwed into the ring groove. The utility model relates to a transportation tool suitable for GRC wallboards. The above-mentioned buckles are sequentially buckled through buckles to form matching upper and lower fixing chains. The transportation tool of the present invention consists of several units connected in series according to actual needs to form an upper fixed chain and a lower fixed chain, which respectively prevent the two sides of several GRC wall panels from playing the role of fixing and separating the wall panels, and at the same time, they are interlocked by the first position, It can form a closed loop and lock the transported GRC wallboard; it can be used in conjunction with the support plate to further improve the support strength of the end and the locking strength of the end. Simple structure, convenient use, low production and maintenance costs, damaged units can be replaced in time, green and environmentally friendly, with strong practicability and wide applicability.

The invention relates to the technical field of wrenches, in particular to a wrench for fastening high-strength bolts, which includes a sleeve, a sleeve and a fixed column. The inner rotation of the sleeve is connected with a connecting column, and the top of the connecting column is provided with a longitudinally penetrating square channel. Groove, the upper side of the right end of the fixing column is provided with a first groove, the inside of the first groove is fixedly connected with the first fixing tube, the outer side of the right end of the first fixing tube is provided with a second fixing tube, and the second fixing tube The right end of the fixed handle is fixedly connected with a fixed handle, the right end of the fixed handle is provided with a turning groove, the inner rotation of the rotating groove is connected with a swivel ring, the right end of the swivel ring is fixedly connected with a rotating column, and the left end of the rotating column is rotatably matched with the right end of the fixed handle ; It is convenient to adjust the length of the handle, can tighten the reinforcement bolts to the required strength, improves the stability of the reinforcement bolt fastening, is convenient to replace different types of sleeves to fix high-strength bolts of different specifications, and improves its practicality of use.

The invention relates to a self-locking screw and a self-locking assembly using the same. The self-locking screw comprises a threaded segment and a tuning segment formed at one end of the threaded segment. The threaded segment comprises a first threaded portion, a second threaded portion and an elastic portion connected between the first threaded portion and the second threaded portion. The tuningsegment is formed at the end, away from the elastic portion, of the second threaded portion. Two radial grooves which are symmetric in a staggered mode are formed in the elastic portion. The two radial grooves are close to the first threaded portion and the second threaded portion correspondingly. The axial distance between the two radial grooves is not smaller than twice the width of the radialgrooves. The depth of each radial groove is greater than half of the outer diameter of the elastic portion and smaller than the outer diameter of the elastic portion. By means of the self-locking screw and the self-locking assembly using the same, stress on the groove positions when the self-locking screw is screwed into a fastener can be reduced, greater resilience force can be produced in the groove positions, the locking effect is improved, the strength of the groove positions is improved, and no fracturing phenomenon occurs.

The invention provides a power distribution cabinet with positioning projections and an electronic control device. The power distribution cabinet comprises a cabinet body (3) and a door plate (4), wherein the cabinet body (3) is provided with locking insertion hole devices (9) at the side frame, the door plate (4) is provided with cylindrical locking projection plugs (8) at the corresponding edge, the locking projection plugs (8) are used for being inserted into empty cavities (96) of the locking insertion hole devices (9), and each locking insertion hole device (9) comprises an end part wall (91), lateral side walls (99) and a body (98) opposite to the end part wall (91), thereby forming the empty cavity (96) in an enclosed manner.

The invention discloses a linkage door lock for a cabinet. The linkage door lock comprises a locking device, a driving device, a guiding device and a hand wheel, wherein the locking device comprises a first locking assembly and second locking assemblies, the first locking assembly comprises a first body and a first bolt; one second locking assembly on any side comprises a second body and second bolts which are positioned on the second body and arranged oppositely; the driving device comprises a first driving rod, a second driving rod and third driving assemblies which are arranged oppositely; the guiding device comprises a first guiding assembly which is used for guiding the first bolt, and a second guiding assembly which is used for guiding second bolts on the two sides; the linkage door lock for the cabinet further comprises a limiting device which is used for limiting the movement stroke of the locking device. According to the linkage door lock for the cabinet provided by the invention, since a plurality of linkage locking points are arranged, the locking force is enhanced; the movement stroke of the locking device is controlled in a limiting mode, so that the direct contact with the locking device is avoided, and the damage probability of the linkage door lock for the cabinet is reduced.