63results about How to "Stay taut" patented technology

The invention belongs to the technical field of security and protection facilities and particularly relates to an invisible anti-theft net comprising an upper beam, a lower beam and steel wires. The upper beam comprises an upper frame body, an upper mounting plate is connected to the upper frame body, and upper mounting holes are formed in the upper mounting plate. Upper wire penetrating holes areformed in the bottom of the upper frame body, wire outlet holes are formed in the rear side wall of the upper frame body, and a fixing mechanism is connected to the rear side wall of the upper framebody. A wire winding mechanism is mounted in the upper frame body, the lower beam comprises a lower frame body, and a lower mounting plate is connected to the lower frame body. Lower mounting holes are formed in the lower mounting plate, and lower wire penetrating holes are formed in the top of the lower frame body. Fixing heads are connected to the lower ends of the steel wires and mounted in thelower frame body, and the steel wires sequentially penetrate through the lower frame body and the upper frame body, are wound around the wire winding mechanism and then penetrate through the rear side wall of the upper frame body to be connected with the fixing mechanism. According to the invisible anti-theft net, the mounting process is simple and rapid, and after tension of one certain steel wire is reduced or the certain steel wire is broken, the other steel wires can still take the protection effect; and the later-period maintenance time can be shortened, and the maintenance cost is reduced.

The invention discloses a self-preloading type plate grinding and polishing device and a method for using the same, including a non-power negative pressure capillary abrasive supply mechanism, a broken-contact polishing belt self-preloading mechanism, a disc-type hanging type grinding mechanism, a polishing With drive guide mechanism and low resistance guide limit mechanism. The invention belongs to the technical field of plate grinding, and specifically refers to a self-preloading type plate grinding and polishing device and a method for using the same; the present invention adopts the method of screw transmission and spring preloading, so that the polishing belt body can automatically be used during the grinding process. It can be tightened and can be adjusted adaptively according to the width of the plate body to be polished. In the absence of any adjustment mechanism and manual binding mechanism, the technical effect of self-adaptive adjustment and binding can be achieved only through simple mechanical linkage; this The invention also continuously and slowly extracts the abrasive from bottom to top through the capillary phenomenon and the negative pressure extraction phenomenon, so as to achieve the technical effect of continuously delivering the abrasive to the grinding position.

The invention discloses a column laying device for a spiral column. The column laying device for the spiral column mainly comprises a column, wherein a gauge is further arranged, the column is connected with one end of the gauge through a sliding seat, the gauge is perpendicular to the column, and the sliding seat is used for sliding in the length direction of the column; the gauge comprises a frame body and a rotary disk arranged in the frame body, the rotary disk freely rotates in the frame body, the interior of the rotary disk is of a square hollow structure, and the rotary disk, the framebody and the square hollow are coaxially arranged; first connecting holes are formed in the surface of the rotary disk, and second connecting holes are formed in the surface of the frame body; a fixing frame is further arranged, the bottom of the fixing frame is of a U-shaped structure, the fixing frame is correspondingly connected with the first connecting holes and second connecting holes through the bottom of the fixing frame, and the rotary disk is fixed to the frame body. According to the column laying device for the spiral column, the structure is simple, the use is safe, labor intensityof an operator can be effectively reduced, the working efficiency can be improved, and the forming quality of the column is good.

The invention discloses a cable pay-off device, which includes a main body of the pay-off device whose lower end can be clamped and connected to the installation hole of a wire reel, and a central ratchet shaft connected to the main body of the wire release device through a bearing. The central ratchet shaft is arranged axially. There is a ratchet, the pawl elastically touches the ratchet and gives the ratchet a certain spring pressure. When the ratchet rotates, the spring pressure becomes the resistance to the ratchet rotation, and the ratchet gives the ratchet certain resistance to keep the cable in tension; through the bearing and the central ratchet shaft The rotating body connected to the upper end, the rotating body top cover fixed on the upper end of the rotating body and the lead frame fixed on the rotating body top cover, the knob-type elastic in the rotating body installation groove between the rotating body top cover and the rotating body One end of the knob-type elastic member is connected to the central ratchet shaft, and the other end of the knob-type elastic member is connected to the rotating body. The cable pay-off can achieve no friction, no damage to the cable, light tension at all times, the function of returning the cable to the reel, and no overlapping of cables.

The invention belongs to the technical field of fire-fighting equipment, and in particular relates to a fixed base facing a firewall; the fixed base is arranged in the middle of the bottom of the firewall, and the fixed base includes: a base body, a base push rod, a circular saw, a circular saw notch, Fixed nail, fixed nail rocker, fixed nail lock and nail lock lever, one end of the main body of the base is connected to the firewall, the inside of the main body of the base is provided with a circular saw pushed by the base push rod, and the side of the notch of the circular saw is provided with A plurality of fixing nail rocking arms, one end of the fixing nail rocking arm is provided with a fixing nail, and the fixing nail lock has a protruding catch, which is arranged on the rotation path of the fixing nail, and one end of the nail lock driving lever is When the protruding end of the base push rod moves, the retainer of the fixing nail lock can be moved; the fixing base of the present invention is arranged at the bottom of the firewall, which can automatically cut a slot on the ground, and then the fixing nail falls into the slot Internally, the firewall is fixed.

The invention relates to a lasso driving mechanism with two degrees of freedom. One end of a forearm part of the lasso driving mechanism is connected with a wrist elbow connector; one end of a wrist joint radial deviation / ulnar deviation moving part is hinged with a first mounting spindle head while the other end is connected with one end of a wrist joint flexion and extension moving part; a first encoder mounting rack and a first encoder are successively arranged on a second mounting spindle head from inside to outside; the first encoder mounting rack is hinged with the second mounting spindle head and is fixedly connected with a first wrist joint; the other end of the wrist joint flexion and extension moving part is hinged with a joint shaft; one end of a palm part is fixedly arranged on the joint shaft while the other end is connected with a palm support part; a second encoder is arranged on the joint shaft; the left ends of a first rope and a second rope are both fixedly arranged on a first output wheel while the right ends are fixed on the wrist joint radial deviation / ulnar deviation moving part; and the left ends of a third rope and a fourth rope are fixedly arranged on a second output wheel while the right ends are fixed on the palm part. The lasso driving mechanism with two degrees of freedom is used for auxiliary and rehabilitation training of the aged and the disabled.

The invention discloses an arched automatic passenger car. The passenger car includes an arched car body, the width of the car body is gradually widening from top to bottom, at least one side of the car body is provided with a door frame, automatic car doors are arranged at the door frames, each automatic door includes two sliding doors, first connecting pieces are both arranged at the upper endsof the two sliding doors facing toward one side of the car body, second connecting pieces are arranged at the lower ends of the two sliding doors facing toward one side of the car body, groove seams are formed in the upper edge frame and the lower edge frame of each door frame, the two sliding doors can slide along the outer wall of the car body toward the two side directions of each door frame orslide along the outer wall of the car body into each door frame and close, and synchronous traction devices which slide synchronously with the first connecting pieces and the second connecting piecesand can drive the two sliding doors are arranged in the groove seams of the car body. The arched automatic passenger car is smaller in size and more fashionable in appearance than traditional automatic passenger car, a switch of the automatic car door is convenient, the interior space of the vehicle is not affected, and the comfort of passengers inside the car is improved.

The invention belongs to the technical field of security and protection facilities and particularly relates to an invisible anti-theft net comprising an upper beam, a lower beam and steel wires. The upper beam comprises an upper frame body, an upper mounting plate is connected to the upper frame body, and upper mounting holes are formed in the upper mounting plate. Upper wire penetrating holes areformed in the bottom of the upper frame body, wire outlet holes are formed in the rear side wall of the upper frame body, and a fixing mechanism is connected to the rear side wall of the upper framebody. A wire winding mechanism is mounted in the upper frame body, the lower beam comprises a lower frame body, and a lower mounting plate is connected to the lower frame body. Lower mounting holes are formed in the lower mounting plate, and lower wire penetrating holes are formed in the top of the lower frame body. Fixing heads are connected to the lower ends of the steel wires and mounted in thelower frame body, and the steel wires sequentially penetrate through the lower frame body and the upper frame body, are wound around the wire winding mechanism and then penetrate through the rear side wall of the upper frame body to be connected with the fixing mechanism. According to the invisible anti-theft net, the mounting process is simple and rapid, and after tension of one certain steel wire is reduced or the certain steel wire is broken, the other steel wires can still take the protection effect; and the later-period maintenance time can be shortened, and the maintenance cost is reduced.

The invention relates to a mounting device for a push head, in particular to a mounting device for a push head for the maintenance of a large and medium-size water-turbine generator set, and solves the problems, for example, the man-made deviation is caused during the mounting of the push head of the traditional large and medium-size water-turbine generator set, the efficiency is low, and the defects are more. The mounting device comprises a high-pressure electric oil pump, a multipass joint, a main pipeline, a plurality of branch pipelines, a plurality of lifting tools and a plurality of fixing brackets, wherein the lifting tools are arranged in a circle with the multipass joint in the center; the upper end of each lifting tool is respectively fixed with one corresponding fixing bracket; an oil outlet of the high-pressure electric oil pump is connected with an oil inlet of the multipass joint through the main pipeline; each oil outlet of the multipass joint is connected with the oil inlet of the corresponding lifting tool through one branch pipeline. The mounting device is used for mounting the push head of the large and medium-size water-turbine generator set.