CN105545183B - Double-insertion type antitheft door - Google Patents

Abstract

A double-insert anti-theft door, which relates to the field of anti-theft security doors, is mainly provided with an ear on the side of the door frame buckle corresponding to each door frame jack, and an ear gap is formed between each ear and the door frame, and the door leaf There is a double board adjacent to the side of the door leaf. The double board is provided with a lining board corresponding to each door frame hole. A narrow slot hole is formed between each lining board and the double board. The edge of the inner panel of the door leaf Corresponding to each slit-type jack, there is a rectangular jack, and there is also a jack for the corresponding door frame jack on the ear, the side of the door leaf, the double board, and the liner, and a set of jacks is formed correspondingly. There are 5 holes in total. When the door leaf is closed, the lugs are inserted into the rectangular jacks and the narrow slot jacks, and the double inserts are also inserted into the gap between the lugs. All are inserted into the corresponding five concentric jacks to lock the anti-theft door and prevent prying and vandalism.

Description

A double-insert anti-theft door

technical field

The invention relates to the field of anti-theft safety doors, in particular to a double-insert anti-theft door.

Background technique

The anti-theft door is mainly composed of a door frame, a door leaf, and a locking mechanism, wherein the locking mechanism includes a lockset, a transmission member, a dead bolt or a locking bolt. The lock includes a driving device, and the driving device is divided into a lock cylinder driving method, a handle driving method, and an electric driving method according to different execution methods. There are several door frame sockets on the door frame, and the lock driving device drives the deadbolt and the lock bolt to insert or extract from the door frame sockets through the transmission parts, so as to complete the closing or opening of the anti-theft door.

The disadvantage of the lock cylinder driving method is that the key is overburdened, that is, the key suffers too much resistance during the rotation process, and the more lock points, the greater the resistance. Restricted by the structure of the lock cylinder, the mechanical strength of the key is limited, and the key is often twisted, deformed, cracked or even broken. Therefore, when the key drives the lock cylinder, the moving strokes of the lock tongue and the lock bolt are not large. The diameter of the lock tongue is 16-20 mm, and the diameter of the lock tongue is 16-18 mm, and most of them are hollow structures. The purpose is to reduce the resistance of the key. The advantage of the handle driving method is that the driving force is large enough, the maximum stroke of the lock tongue can be increased by more than 1 times, and at the same time it can obviously prolong the service life of the key and bring convenience to the user, but the handle itself is easily used as a door prying tool. Do not lock the target of the attack.

When the anti-theft door is picked, the lock tongue inserted into the door frame is equivalent to a cantilever beam. The reaction force of the door frame to the lock tongue makes the lock tongue suffer from two kinds of forces: one is shear force and the other is bending moment. For the shear force, as long as the strength of the lock tongue, including the diameter of the solid lock tongue or the wall thickness of the hollow lock tongue, and the material performance indicators meet the requirements of relevant standards, it can ensure that the lock tongue will not be seriously deformed or sheared; , the deadbolt and lock body of general main lock lockset are conjoined, all are installed on the side of door leaf, and the side of lock body that exposes has the situation of direct contact with prying tool, so is subject to partial damage easily. In addition, most of the fixing methods of the main lock and the door leaf use 4 screws to fix the lock body on the side of the door leaf, and then insert the lock cylinder into the lock body from the reserved holes in the inner and outer panels of the door leaf, and then use 1 long bolt to fix the lock body on the side of the door leaf. Fix the two from the horizontal direction, the outer panel and the inner panel of the lockset are buckled on both sides of the door leaf respectively, and then fixed from the inner side of the door leaf with long screws. At this time, the end of the lock cylinder is exposed on the outer panel of the lockset. Since the outer panel of the lockset protrudes from the outer panel of the door leaf, it is easy to be damaged. After the damage, the lock cylinder and the lock body are only fixed to the side of the door leaf, becoming a cantilever-type fixing method, and the damage resistance becomes weaker. There are many reserved holes on the outer panel of the door leaf where the lock is installed, and the hole diameter is also large, which seriously affects the anti-destructive performance of the anti-theft door and the lock. The auxiliary lock (or other locking points) and the side of the door leaf are generally fixed on the side of the door leaf with two screws, which is also a cantilever structure, and the performance of anti-damage and anti-prying is not reliable.

The door leaf is mostly made of cold-rolled thin steel plate extruded, bent and welded. When the steel plate of the door leaf is thin, the material is poor, the frame of the door leaf and the reinforcement protection design are not in place, and the layout is unreasonable, the door leaf is easily deformed, and the door leaf will be pried open if the bolt is forcibly pulled out from the socket of the door frame, especially the more the bolt is The shorter it is, the easier it is to pry it off. Therefore, in order to securely connect the deadbolt with the socket of the door frame, there are various improvement methods in the prior art: some extend the deadbolt and rotate it at an angle of 90 degrees, and the protruding part in the length direction of the end of the deadbolt is stuck in the doorframe In the width direction of the socket, the lock tongue is prevented from being pulled out; after some people extend the lock tongue, two rotatable parts in the length direction of the end of the lock tongue are opened and locked, and the lock tongue is stuck in the door frame as a whole. On the length direction of jack; What also have is provided with semicircular deadbolt, rotates 180 degree angles and hooks on the corresponding upper and lower doorframe jacks of the doorframe or the like. The above-mentioned locking mechanisms all increase the running resistance, reduce the mechanical strength of some parts, and at the same time, the overall structure is complicated, the cost is increased, and the stability and reliability are not ideal.

Contents of the invention

In order to solve many problems existing in the anti-destruction performance of the above-mentioned anti-theft door, the present invention provides a double-insert anti-theft door, which overcomes many disadvantages of the existing anti-theft door with a new overall design scheme and special structure. The performance of prying is significantly enhanced, and the structure is simple and the cost is low.

The present invention adopts following technical scheme:

A double-insert anti-theft door, including a door frame, a door leaf, and a locking mechanism, wherein a vertical plane of the door frame is provided with a door frame socket from top to bottom, and the vertical plane is adjacent to and perpendicular to the door frame buckle edge on the innermost side of the door frame . The door leaf includes the outer panel of the door leaf, the inner panel of the door leaf and the side of the door leaf. The locking mechanism includes a lock, a transmission part and a deadbolt. The closing or opening of the door. The main measures are: on the side of the door frame buckle corresponding to the position of each door frame jack, a flat-shaped plug ear is fixedly installed, and each plug ear is parallel to the vertical plane of the door frame where the door frame jack is located and separated by a certain distance. The opening of the gap between the ear plugs faces the outside of the door, and each ear has an ear jack, which is coaxial with the corresponding door frame jack. There are the same number of door leaf side jacks on the side of the door leaf corresponding to the door frame jacks. A vertical longitudinal plate is fixedly installed inside the door leaf close to the side of the door leaf. The rectangular plane part of the longitudinal plate close to the inner side of the door leaf is It is a double board, and the double board is perpendicular to the inner panel of the door leaf. One side of the double board is in contact with the inner surface of the side of the door leaf and is fixedly installed. There is also a double board jack at the same position corresponding to each door leaf side jack from top to bottom on the double board. The other side of the insert plate is fixedly installed with a liner in the shape of a channel steel from top to bottom corresponding to each double insert plate socket, and a liner insert hole is opened in the middle of each liner plate, and each liner plate is inserted The holes are all coaxial with the corresponding double board jacks and the door leaf side jacks. There is also a slit hole in the direction perpendicular to the inner panel of the door leaf between each liner and the double insert plate, and a rectangular slit hole is provided for each narrow slit socket on the inner panel of the door leaf adjacent to the edge of the door. The centerlines of each rectangular socket and the corresponding narrow slot socket overlap in the vertical direction and have the same width. When the door leaf is closed, each lug can be movably inserted into the corresponding rectangular jack and narrow slit jack, and at the same time, the double inserting plate and the side of the door leaf are also inserted into the crevice of each lug. There are 5 holes in liner board jack, double board jack, door leaf side jack, ear jack, and door frame jack, all of which are concentric with the center line, that is, a group of concentric five jacks is formed respectively, and each lock tongue is in the Driven by the driving device of the lockset, they can be movably inserted into a corresponding group of concentric five sockets to lock the anti-theft door.

Due to the installation and fixing of the longitudinal plate, the deformation resistance strength of the door leaf is significantly increased, especially the side of the door which is most likely to be damaged by prying doors is more resistant. When the cross-section of the longitudinal plate is straight or stepped or broken line or contains a curve and matches the shape of the side edge of the door leaf, the edge of the other side of the longitudinal plate opposite to the double insert plate is in contact with the inner surface of the outer panel of the door leaf , welding fixed. When the cross-section of the longitudinal plate is enlarged and bent to form an angle iron as a whole, one side of the longitudinal plate parallel to the outer panel of the door leaf is welded and fixed on the inner surface of the outer panel of the door leaf. At this time, the structural shape of the longitudinal plate is In particular, the parts other than the double-plates are matched with the side of the door leaf, and more shapes such as knuckles, convex edges, and steps are added, which can greatly improve the bending strength and rigidity of the longitudinal plate, thereby improving the overall rigidity of the security door. The local deformation of the side of the door leaf is also small when the door is opened.

The lugs on the door frame are inserted into the narrow slit sockets formed by the double-layer steel plates of the door leaf. During the process of prying the door, the lugs can move synchronously and slightly along the side of the door leaf. As long as the bolt does not retreat and the shearing continues, the door leaf cannot be opened . At the same time, the double sliding plate and the side of the door leaf are also inserted into the gap between the lugs to jointly prevent the deformation of the side of the door leaf and escape from the gap, so the anti-prying and anti-destructive performance is significantly improved. The ear plugs are inserted into the narrow slot jacks, and at the same time, the double plug-in boards are inserted into the gap between the plug ears, which is the so-called "double plug-in type".

Further, the deadbolt inserted into the concentric five-jack hole adopts a round-headed cylindrical solid structure. Due to the insertion of the lock tongue, when the lug is under tension, the double inserts and liners on both sides of the lug pull the lug in the opposite direction at the same time, and because the width of the slit socket is narrow, the lock tongue is mainly subjected to shear force . In the same way, the double board is also inserted into the gap between the lugs. When the double board is under tension, the ears on both sides of the double board and the steel plate of the door frame pull the double board at the same time, and the width of the gap between the ears is also narrow. The lock tongue at the place is also mainly affected by the shear force, so the lock tongue is suitable for solid structure, and the lock tongue with a smaller diameter also has sufficient strength. At the same time, the smaller the diameter of the deadbolt, the smaller the length of the lug, and the smaller the size of each socket on the door frame and door leaf, and the greater the mechanical strength of the relevant parts, the stronger the damage resistance. The lock bolt is cylindrical with a round head, the processing technology is simple, the cost is low, and it is also convenient to insert into the five concentric sockets.

The shape of each jack in the five concentric jacks is a round hole or a square hole or a rectangular hole or an oblong hole. In fact, if the five jacks are all round holes with the same diameter or square holes with the same side length, the assembly clearance and processing accuracy requirements are relatively high, especially the deformation of the door body and the sinking of the door leaf. Misalignment occurs, which affects the smooth insertion of the deadbolt. Some of the jacks use oblong holes or rectangular long holes with the vertical direction as the length direction, then at least the allowable error in the assembly clearance in the vertical direction is relatively large, but it does not affect the locking performance of the anti-theft door.

Further, the shape of the end of the plug ear is arc-shaped, which is convenient for inserting into the rectangular socket and the narrow-slit socket, and at the same time avoids scratching the human body and clothes.

Further, when the main lock of the mechanical lock is installed at the middle position of the double plate, a rectangular mounting hole matching the main lock is also opened at the middle position, and each group of concentric five jacks is distributed on the upper middle part or the upper part of the door leaf or the door frame. The middle and lower part, and match the deadbolt of the corresponding locking point.

Most of the main locks in the prior art are installed in the middle of the side of the door leaf. In this case, the concentric five jacks can only be set in the upper middle part and the lower middle part of the anti-theft door, and the concentric five jacks can be driven by the heaven and earth rod of the main lock. Inserting or pulling out the deadbolt in the socket can also significantly improve the anti-vandalism and anti-prying performance compared with other ordinary anti-theft doors. The anti-destructive performance of the lock is only enhanced because of the addition of a layer of steel plates, i.e. longitudinal plates, at the fixed installation position.

In particular, when the main lock is installed in the middle of the side of the door leaf, it is not conducive to improving the anti-prying and anti-destructive performance of the anti-theft door: because most of these cases are driven by the lock cylinder, the number of lock points is large, and the resistance is large. The maximum stroke that the tongue and the lock bolt move is relatively small, that is, the length of the dead bolt inserted into the door frame jack is relatively short, which is unfavorable for improving the pick-proof performance of the security door. According to the latest national standards, for the four grades of anti-theft safety doors A, B, C, and D, the corresponding locking points between the door frame and the door leaf should be no less than 12, 10, 8, and 6 respectively. It is a common requirement for the mechanism to include multiple locking points. Therefore, it is difficult for the drive method of the lock cylinder to meet the requirements of multiple locking points and long bolts.

In particular, when the installation position of the lock is not on the side of the door leaf, but placed inside the door leaf, it is beneficial to improve the anti-prying and anti-destructive performance of the anti-theft door: because in this case, the handle driving method (also including electric power) is often used. Drive mode), the maximum stroke of the lock tongue or the maximum length of the lock tongue inserted into the door frame jack can be increased by more than 1 times. Among them, the transmission mechanism for driving the dead bolt is suitable to adopt a converter with a turntable as the main component. The specific measures are: rotate the handle to drive the transmission part to move or rotate, and then drive the lock bolt in the middle of the side of the door leaf to move, and at the same time drive the middle turntable located in the middle of the door leaf to rotate, and the middle turntable drives the vertical direction of the heaven and earth rod to move, and the sky and earth rod again It drives the upper turntable and the lower turntable to rotate, and finally drives the deadbolts in the upper middle part and the lower middle part to move in the horizontal direction. Among them, only need to increase the radii of the middle turntable, the upper turntable and the lower turntable, the stroke of the deadbolt can be obviously increased. In this scheme, the key and the lock cylinder are used to drive a stopper, and then the stopper controls the operation of a transmission member that drives the deadbolt, and the resistance to the key and the lock cylinder is relatively small. This scheme involves two issues, one is the anti-technical opening performance of the lockset, and the anti-destructive performance of force-opening tools; the other is the anti-destructive performance of the handle. These two performances are not up to standard, and the length of the dead bolt is only doubled, which cannot ensure that the security door is safe. A cross mechanical anti-theft lock with a fixed lock core (ZL201410020215.X), which is characterized by: it cannot be opened technically; Destroy the lock cylinder; the handle is assembled with the torque limiter, and the handle can rotate idly; the handle drives the lock, that is, the handle can drive all the bolts of the door to run, and can realize long bolts and large strokes. Therefore, installing the anti-theft lock in the double-insert anti-theft door, as one of the solutions, can solve many problems that the anti-theft door exists.

Further, the corresponding position between the upper beam of the door frame and the upper side of the door leaf or the lower beam of the door frame and the lower side of the door leaf is also provided with the same structure of lugs, double boards, concentric five sockets and corresponding locks. Tongue or lock bolt, lock the anti-theft door at the same time with the upper, lower and side three directions.

Description of drawings

Figure 1: Schematic diagram of door frame and door leaf assembly;

Figure 2: Schematic diagram of the assembly of the longitudinal plate and the door leaf;

Figure 3: One of the schematic diagrams of the assembly of the ear and the buckle edge of the door frame;

Figure 4: The second schematic diagram of the assembly of the ear and the buckle edge of the door frame;

Figure 5: The third schematic diagram of the assembly of the ear and the buckle edge of the door frame;

Figure 6: Schematic diagram of the assembly of the lining board and the double board;

Figure 7: Schematic diagram of the rectangular jack and the inner panel of the door leaf;

Figure 8: Schematic diagram of the operation of the handle-driven deadbolt;

In each figure: 1: door frame, 2: door leaf, 3: bolt, 4: side of door leaf, 5: outer panel of door leaf, 6: inner panel of door leaf, 7: longitudinal plate, 8: double insert plate, 9: liner , 10: liner hole, 11: narrow slot hole, 12: rectangular hole, 13: double plate hole, 14: door leaf side hole, 15: door frame hole, 16: door frame buckle edge, 17: ear plug, 18: ear plug hole, 19: ear plug gap, 20: double buckle side, 21: middle turntable, 22: upper turntable, 23: lower turntable, 24: heaven and earth pole.

detailed description

The present invention will be further described below with reference to FIG. 1 to FIG. 8 .

As shown in Fig. 1, Fig. 3 and Fig. 4, the ear 17 is welded and fixed with the door frame buckle edge 16 of the door frame 1, and the ear jack 18 is coaxial with the door frame jack 15. The end of the ear 17 is arc-shaped, and the ear 17 is parallel to the door frame 1 , and the opening direction of the ear gap 19 formed by the two faces outside the door.

There are two ways to fix the ear 17 and the buckle edge 16 of the door frame: the first one, as shown in Figure 3, the ear 17 is directly welded on the buckle edge 16 of the door frame; the second way, as shown in Figure 5, before welding, Open a long hole at the corresponding position, lengthen the ear 17, and still be flat, the tail end of the ear 17 is directly inserted into the long hole, and then welded and fixed from the inside of the door frame 1.

As shown in Fig. 1, Fig. 2 and Fig. 6, the longitudinal plate 7 is installed in the door leaf 2, and is in contact with the side edge 4 of the door leaf, and the shape is matched. The door frame is provided with a double buckle edge 20 (as shown in Figure 3), the shape of the side edge 4 of the door leaf is stepped, and the corresponding position of the longitudinal plate 7 is also made into a stepped shape, matching it, its bending resistance and rigidity are remarkable enhanced. The cross-section of the longitudinal plate 7 is in the shape of an angle iron as a whole, and one side of the plane is in contact with the inner surface of the door outer panel 5 and fixed by welding. If the plane part is canceled, its mechanical strength will be greatly reduced. The step shape on the other side of the longitudinal plate 7 includes a plane part perpendicular to the inner panel 6 of the door leaf, that is, a double board 8, and the double board 8 is welded and fixed to the side 4 of the door leaf.

In FIG. 6 , the lining plate 9 is welded on the side of the double flashing plate 8 , and the lining plate 9 is in the shape of a channel steel, and the opening direction of the slotted socket 11 formed by the two is perpendicular to the door inner panel 6 . Lining board 9 is provided with lining board jack 10, double board 8 is provided with double board jack 13, door leaf side 4 is provided with door leaf side jack 14, and lining board jack 10, double board Jack 13, door leaf side jack 14 are coaxial.

The minimum distance between two adjacent lining boards should be such that each lining board can be easily and securely welded on the double board. There are 2-4 lining boards installed in the upper middle part, middle part and lower part of the door body respectively.

As shown in Figure 1, Figure 2 and Figure 7, the edge of the door inner panel 6 is provided with a rectangular jack 12 corresponding to the slotted jack 11, and the narrow slotted jack 11 has the same width as the rectangular jack 12. The centerlines overlap.

As shown in Figure 1, when the door leaf 2 is closed on the door frame 1, the plug ear 17 is inserted into the rectangular socket 12 and the narrow slot socket 11, and at the same time, the double plug board 8 and the door leaf side 4 are also inserted into the plug ear In the gap 19, and the lining board jack 10, the double board jack 13, the door leaf side jack 14, the ear jack 18, and the door frame jack 15 are all concentric, and the deadbolt 3 is inserted into the above-mentioned five concentric jacks , the door is locked.

As shown in FIG. 8 , each turntable is provided with an oblong hole. The handle in the rotary lockset drives the dead bolt 3 in the middle to move through the transmission part, and at the same time drives the middle turntable 21 to rotate, and then drives the sky and earth rod 24 to move, and the sky and earth rod 24 drives the upper turntable 22 and the lower turntable 23 to rotate, and then pushes the middle and upper parts , The deadbolt at the middle and lower part moves. The deadbolt drive mechanism scheme has a large stroke of the deadbolt and a large length inserted into the door frame, and cooperates with the structure of the double-insert door body to ensure the anti-prying and anti-destructive performance of the anti-theft door.

Claims (5)

1. a kind of double-inserting type antitheft door, including doorframe, door leaf, locking mechanism, wherein, a vertical plane of doorframe is from top to bottom Doorframe jack is provided with, it is adjacent and vertical that the vertical plane doorframe most inboard with doorframe buckles side, door leaf includes door leaf outer panels, door Fan wainscot and door leaf side, locking mechanism include lockset, driving member and dead bolt, and the driving means of lockset are driven by driving member In dead bolt insertion doorframe jack or from wherein extracting out, to complete turning off or on for antitheft door, it is characterized in that：Doorframe is buckled on side Corresponding each doorframe jack position fixedly mounts 1 in flat slotting ear, and each slotting ear is hung down with doorframe jack place doorframe Straight plane is parallel, and keeps at a certain distance away, and the opening of the two plug in ear clip seam for being formed is provided with 1 on each slotting ear towards outdoors Individual slotting ear jack, and with corresponding doorframe jack coaxial inner conductor, on door leaf side, correspondence doorframe jack is provided with the door leaf of equal number Side jack, inside door leaf close to door leaf lateral location fixedly mount a vertical direction longitudinal plate, the longitudinal plate close to The rectangular planar portion of door leaf medial surface side is double plates, and this pair of plate is vertical with door leaf wainscot, double plates One side is contacted and is fixedly mounted with the inner surface of door leaf side, corresponds to each door leaf side jack on double plates from top to bottom Also 1 double plate jack is respectively provided with same position, it is equal that another side of double plates corresponds to each double plate jack from top to bottom Liner plate of the fixed installation 1 in channel-section steel shape, each liner plate middle part are provided with 1 liner plate jack, each liner plate jack with it is right Double plate jacks for answering, the equal coaxial inner conductor of door leaf side jack, also form 1 direction and door leaf between each liner plate and double plates The vertical narrow slit type jack of wainscot, is equipped with 1 square close to door edge position each narrow slit type jack of correspondence on door leaf wainscot Shape jack, each rectangle jack is overlapped in the centrage of vertical direction with corresponding narrow slit type jack and width is identical, works as door leaf After closing, each slotting ear can be removably inserted in corresponding rectangle jack and narrow slit type jack, while double plates are together with door Fan side is also inserted in each plug in ear clip seam together, and now each self-corresponding liner plate jack, double plate jacks, door leaf side are inserted Hole, ear jack, doorframe the jack equal coaxial inner conductor in totally 5 holes, i.e., each one group of concentric five jack of self-forming are inserted, and each dead bolt is in lock Can be removably inserted under the driving of the driving means of tool in corresponding one group concentric five jack, to locking anti-theft door.

2. a kind of double-inserting type antitheft door according to claim 1, is characterized in that：The dead bolt for inserting concentric five jack is round end Cylindrical masses structure.

3. a kind of double-inserting type antitheft door according to claim 1, is characterized in that：The tip shapes of slotting ear are circular arc.

4. a kind of double-inserting type antitheft door according to claim 1, is characterized in that：When the medium position of double plates installs machinery During the main lock of lock, the medium position is also provided with and is distributed in the main rectangle installing hole locked and match, and concentric five jack of each group Door leaf, the middle and upper part of doorframe or middle and lower part, and the dead bolt matching with corresponding lock point.

5. a kind of double-inserting type antitheft door according to claim 1, is characterized in that：The entablature of doorframe and the upper side of door leaf Correspondence position between the bottom side on side, the sill of doorframe and door leaf is also equipped with the slotting ear of same structure, double plates, same Five jack of the heart and corresponding dead bolt or locking bolt, to the upper and lower, orientation of side three while locking anti-theft door.