39results about How to "Not easy to pry open" patented technology

The invention discloses an armored door leaf structure. The armored door leaf structure consists of a door core, a decorative outer door plate, an outer door plate decorative covered edge, a screw A, a door leaf sealing strip, a decorative inner door plate, a screw B and an inner door plate covered edge. A whole covered edge of a door leaf is divided into a split structure of the outer door plate decorative covered edge and the inner door plate covered edge, therefore, the problem of 45-degree chamfer angles of four corners of inner and outer door plates of the door leaf is solved. External covered edge fixing screws are all designed to be in a built-in fixing screw mode so as to improve the attractiveness of the side edge of the door leaf. A clamping groove A, a clamping groove B and a C-shaped clamping groove C are designed on the outer door plate decorative covered edge, the clamping groove B is clamped with the side edge of the decorative outer door plate, the clamping groove A and a door core outer extending lug edge are in clamped connected and fixed through the screw A, the door leaf sealing strip is clamped in the C-shaped clamping groove C of the outer door plate decorative covered edge, prying resistance and airtightness of t-shaped cover edge of the door leaf are greatly enhanced, and the door leaf is not prone to being pried. The inner door plate covered edge is arranged on the periphery of the decorative inner door plate, a clamping groove and an abutting head are arranged on the inner door plate covered edge, the clamping groove is connected to the side edge of the decorative inner door plate in a clamped mode, and the abutting head abuts against the bent outer corner A of the side edge of a profile of a door core frame; and the decorative inner door plate and the inner door plate covered edge are fixed to the door core frame by the screw B from the inner side of the profile on the periphery of the door core frame to the outer side, and thus a double-step door leaf structure is formed.

The invention provides a steel entry door leaf with a good door lock prying-resistant performance. A door leaf panel made of a steel plate is arranged at each of the inner side and the outer side of a door leaf framework, a door lock is arranged beside one side edge near the door leaf, the door lock is provided with an outer lock cover panel and an inner lock cover panel, the outer lock cover panel and the inner lock cover panel are in strip shapes and are provided with handles, a lock body connected by screws is arranged between the outer lock cover panel and the inner lock cover panel, a telescopic lock bolt is arranged on the lock body, operation and control devices used for controlling the lock bolt to extend and contract are arranged on the outer lock cover panel and the inner lock cover panel, the lock body is positioned in a lock box arranged on the door leaf framework, a through hole is formed in the door leaf panel, the shape of the through hole is the positive projection shape of the lock cover panel on a door leaf outer panel, and the lock cover panel is nested in the through hole. The lock cover panel of the door lock is embedded in the through hole formed in the door leaf panel, the shape of the through hole is the positive projection shape of the lock cover panel on the door leaf panel, a gap does not exist between the lock cover panel and the door leaf panel, the potential hidden danger that the door lock can be easily picked is eliminated, the door lock of the steel entry door leaf cannot be easily pried up, and the prying-resistant performance is good.

The invention discloses an electric meter box burglary resistant lock. The electric meter box burglary resistant lock comprises a lock hole and a locking plate which is rotationally arranged on the inner side of a box door of an electric meter box, wherein the lock hole is fixedly formed in the outer side of the box door of the electric meter box, and the lock hole and the locking plate are located on two corresponding sides of the box door and the electric meter box. The electric meter box burglary resistant lock further comprises a rotary shaft, a lock catch and a spring bolt, wherein the rotary shaft can rotate around the axial direction of the rotary shaft itself, the lock catch is fixedly arranged on the rotary shaft, the spring bolt is fixedly arranged in the electric meter box and can be buckled by the lock catch in a matched mode, the rotary shaft penetrates through a shaft sleeve which is fixedly connected to the inner side of the box door of the electric meter box, the rotary shaft is fixedly provided with a connection part, the connection part can be driven by the locking plate and drive the rotary shaft to axially rotate around the connection part, an elastic part and a limiting part are arranged between the rotary shaft and the box door of the electric meter box, the elastic part is used for returning the rotary shaft, and the limiting part is used for limiting rotation of the rotary shaft. When the box door of the electric meter box is in an opened or locked state, the included angle between the lock catch and the box door of the electric meter box and the included angle between the connection part and the box door of the electric meter box respectively range from 0 degree to 90 degrees. The electric meter box burglary resistant lock is simple in structure, good in safety and not prone to burglary.

The invention discloses a zipper which comprises two zipper bands and two zipper sets. Each zipper set comprises a plurality of zipper blocks arranged in sequence, mounting grooves for being inserted into mounting ribs are formed in the outer sides of the zipper blocks, a buckle tooth is arranged at one end of the inner side of each zipper block, and a guide tooth is arranged at the other end of the inner side of each zipper block. Guide grooves are formed between the buckle tooth on each zipper block in the same zipper set and the guide teeth on the adjacent zipper blocks and used for allowing the matched guide teeth of the zipper blocks in the other zipper set to be embedded therein. The buckle teeth are embedded in the corresponding buckle grooves, the guide teeth are embedded in the corresponding guide grooves, the transverse tensile strength is greatly improved, and the phenomenon of breakage or tooth disengagement of the zipper is avoided.

The invention provides an electric anti-theft lock. The electric anti-theft lock comprises a first lock shell and a second lock shell; the first lock shell consists of an outer shell and a cover body;the internal of the outer shell is divided into a cavity and a mounting cavity through an extension plate; the extension plate is formed by extending from the shell bottom to the shell port of the outer shell; the extension plate is parallel to the wide edge of the outer shell; a lock tongue and a driving motor are mounted in an inner cavity of the second lock shell; a lock tongue hole is formedin the side wall of the second lock shell; a rack is arranged on one part of the lock tongue; a gear is arranged on an output shaft of the driving motor; and the driving motor, the gear and the rack are cooperated, so that the other part of the lock tongue is inserted in the cavity for locking after penetrating through the side wall of the second lock shell and the cover body in sequence. The rackis arranged on the lock tongue, so that the occupied space of the driving motor and the lock tongue is reduced.

A double-working hinge specifically comprises a tight hinge body, a loose hinge body, a movable shaft, an upper plug and a lower plug, wherein the movable shaft is sleeved with the tight hinge body and the loose hinge body, the upper plug is sleeved with the tight hinge body, and the lower plug is sleeved with the loose hinge body, so that the whole double-faced hinge is formed. According to the double-working hinge, the tight hinge body and the loose hinge body are each provided with six screw holes. When a door and a door frame are combined through the double-working hinge, the double-working hinge is not prone to being prized up by people. When the double-working hinge is applied, the door frame and a door sheet can be split, and mounting is convenient. Meanwhile, when the double-working hinge is applied, the door is not prone to drooping or rebounding.