CN112377002A

CN112377002A - Antitheft mortise door lock and working method thereof

Info

Publication number: CN112377002A
Application number: CN202011056892.9A
Authority: CN
Inventors: 姚自立
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-02-19
Anticipated expiration: 2040-09-29
Also published as: CN112377002B

Abstract

The invention relates to a theft-proof mortise door lock and a working method thereof, which comprises an inner lock cylinder sleeve, an outer lock cylinder sleeve and an impeller (a lock latch shifting fork) clamped between the inner lock cylinder sleeve and the outer lock cylinder sleeve, wherein the inner lock cylinder sleeve and the outer lock cylinder sleeve are respectively embedded with the inner lock cylinder and the outer lock cylinder which are not positioned on the same axis, the outer end of the inner lock cylinder and the inner end of the outer lock cylinder are both provided with flanges, the inner end surface and the outer end surface of the impeller (the lock latch shifting fork) are respectively provided with a groove butted with the two flanges, the center of the groove is internally and externally provided with a through hole in a penetrating way, a top pin is inserted in the through hole, the outer end surface of the inner lock core and the inner end surface of the outer lock core are respectively provided with a slot towards the interior of the lock core for inserting the floating key, the slots transversely extend towards the side end of the inner lock core and the outer lock core and sequentially penetrate through the side walls of the lock core and the lock core sleeve, and through the heavy design of the key, the lock core, the door marble, the taper marble and the lock latch shifting fork, the anti-theft capability of the lock is greatly improved layer by layer, and the anti-theft design concept is met.

Description

Antitheft mortise door lock and working method thereof

Technical Field

The invention relates to the technical field of locks, in particular to a theft-proof mortise lock and a working method thereof.

Background

With the advancement of technology and the effective updating of design concepts, the design of the security door is more and more luxurious and beautiful, and is more and more noble and not as soft and indestructible. Install the lock body in the burglary-resisting door, the splendid innovation comes up endlessly, most typical transformation: the handcuff type lock latch appears, but the design concept of the lock core is always lagged, the theft-proof design concept which is too defensive is not leaped to the theft-forbidding design concept which is never released by tools, and the three-in-one of the anti-theft door, the lock body and the lock core is not synchronously developed; the door is firm again, the lock body is remarkable again, and the lock core is all return to zero too rotten, and what the thief unblanked the room through the instrument and aimed at always is the lock core. Although innovations in the lock industry are emerging, a new lock appears on the market, and the corresponding unlocking tool immediately follows the lock. These unlocking tools are readily available from underground distribution channels or on the internet. The unlocking tools are characterized in that: the operation is silent and the cracking is quick. Therefore, great hidden danger is brought to the safe-living and burying of thousands of people in the world. The lock homogenization flooding is not only in China, which is a worldwide problem.

After unique anti-theft locks around the world are sold on the market, the night-blooming ceremony disappears forever. The anti-theft mortise door lock can not be cracked by tools forever, but has no negative effect. In the face of the theft-proof lock which is impossible to prevent, the theft-proof lock which is never solved by a tool can not meet the safety requirement of the lock for the fourteen hundred million people in China and seventy five hundred million people in the world (export). However, if the innovative design thinking way of the anti-theft design concept continues for a long time, the lock which is never unlocked by the second tool except the anti-theft lock of Yao's still can not appear all over the world.

The whole lock boundary is not only continuously innovated and classified into the eight-flower door, but also has three main classes in general: magnetic coded locks, electronic coded locks and mechanical locks.

Magnetic coded lock: the lock has no key hole, the magnetic point arrangement in the lock is consistent with the magnetic point arrangement of the key inner layer, the key amount is generated by the normally closed and normally open arrangement combination of the magnetic points, the key is unlocked to be tightly attached to the surface layer of the lock, and the attraction and repulsion of the positive pole and the negative pole accord with the preset lock, so that the lock is unlocked.

Electronic trick lock: the lock is originally developed abroad in the second thirty years of the 20 th century, and is a command for controlling a circuit or a chip to work through password input so as to control the closing of a mechanical switch to complete unlocking and locking. Through the evolution of electronic coded locks of several generations, a chip is taken as a core at present, and a large number of electronic intelligent locks with ultra-large secret keys are realized through programming. Such as: fingerprint lock, face identification, the number of keys is billions. Artificial intelligence promotes in other fields prospect fairly good, however, is applied to the most troublesome problem in security protection field, is the natural enemy of intelligence lock: a decoder.

Mechanical locking: the lock is the lock with the longest history, has existed in ancient times, and the Song Dynasty chessboard lock which is lost for a long time is restored by the record of the inventor according to historical materials. The economy of Song dynasty is quite prosperous, and thieves are rampant, so that majors can think of a chessboard lock which is inconvenient to move and difficult to break by skillful craftsmen, the chessboard is always lost all the time, and the amount of keys is too large to imagine. But the structure is too complicated and has no popularization value. With the advancement of technology, mechanical locks have evolved into a number of categories: a leaf lock, a threaded lock, a mechanical timing lock, a mechanical turn-button combination lock. The lock is always viewed by well-qualified people, and the lock is most widely applied worldwide.

Although mechanical tumbler locks are considered to be the most revolutionary potential lock classes, mechanical tumbler locks that do not achieve subversive changes have a number of drawbacks, and are vulnerable and far from competitive facts:

the lock is always vulnerable to the anti-unlocking function, and even if the lock is technically unlocked with difficulty, the lock can be unlocked abnormally by an unlocking means. After the invention of the lock with the side bolt design concept, a plurality of lock rabbet imitate with wind. However, the anti-violent unlocking function of the lock of the side bolt design concept is more fragile, and the original key can be used as usual after the violent unlocking tool is unlocked. The brand lock sold in China with the most red fire is opened by an opening tool for a attacker on a single arena, and the lock can be used normally after being opened by an original key, so that the game rules of the arena are met. However, to date, locks of the edge bolt design concept have been widely used.

Disclosure of Invention

The single item related to the subversive change of the lock of the anti-theft lock pin of the invention is briefly summarized firstly:

firstly, the overall appearance of the lock is changed.

The cross section of the mortise door lock (calabash container) is like a calabash, and the marble is only arranged on one side in the shape, so that the mortise door lock is very convenient for a thief to break by using a tool. Ancient poems can also become a source of the subversive innovation inspiration of the inventor. The half-covering surface of the lute is held with a dead man, and the hubble comes out. "design best suits the native teacher. The 'gourd' is thrown off and the 'lute' is embraced by the mortise door lock after subversive transformation and innovation. Because a 'lute' is arranged in the middle of the marble, the marble on both sides is formed. The difficulty of the tool for cracking the double is given once, and the combination with the taper marble at the back forms one of the factors that the tool cannot be cracked.

Second, the transformation of the keyhole of the lock.

Most of the key holes of the locks all over the world are in a straight line shape, which brings great convenience to tool invasion. Furthermore, a residual space is left under the marble, which provides a convenient space for the operation of a technical opening tool. Later, a 'cross-shaped' key hole is created, and the tool is opened more conveniently and quickly. Then, a crescent-shaped key hole is reformed, and the concept of anti-theft design still belongs to. The inventor plays a European eight-country trip with the family, and each country pays attention to the foreign person to use the lock and only see the keyhole, does not see a subversive innovation, and is generalized as in China. Birds flying in the wings on the blue sky have brought about the inspiration for the inventor to innovate the keyhole. Therefore, when the unprecedented 'bird-shaped' key hole is technically cracked, the first closing of tool intrusion is inconvenient unprecedentedly, and the key hole is matched with a door marble at the back to form another theft-preventing factor that the tool is not cracked.

Third, the reform of the lock marble

Some military laws are also known when the subversive change of the lockset is carried out. The military writing institute says: the troops which can not fight but can flex people attract the wonderful innovation of the door marble for the self. The marble of the marble lock is provided with a gauge: the lower pin tumbler is certainly lower than the lower pin tumbler hole, so that the upper pin tumbler falls into the lower pin tumbler hole, and a bolt function is formed. The spring lock is invented for one hundred and seventy years, the rule is never broken by people, and by means of a military service institute, the rule is broken by the inventor: the first pair of outer-most tumblers is specially arranged, and the upper gate tumbler and the lower gate tumbler are positioned at the critical point of the lock cylinder before a key or a tool is inserted. The tool always has thickness, and once the tool invades, the standing horse lifts the lower door marble into the upper marble hole. The self-locking effect of the tool intruder is generated, and the unlocking tool picking hook is required to be paid attention to the dropping of the tool and be pulled out for releasing the self-locking. The lockset achieves the highest military operation of 'soldiers bent without war'.

Cylinder changing leather of lockset

The other rule of the marble lock is as follows: the outer diameters of all the marbles are uniform. The innovation of the global lock world always stands the rule, and the pin tumbler lock is invented for one hundred and seventy years, and nobody breaks the rule all the time. I is a generation of lock people with the least discipline in the world lock world, but I has kept sense and well-known enough, and the first root of the world I can be created. "do not hang to death on a tree" is a well-known colloquial language. The custom language gives the subversive innovation of the lock. After the inventor invents the gate marble, the lower gate marble lifted by a tool into the upper marble hole is hung on a tree, and the diameter of the gate marble is specially enlarged by 5 microns. Therefore, when the lower door marble entering the upper door marble hole falls to the original position, the unlocking tool picking hook is pulled out, and the torsion of the other hook of the unlocking tool is loosened. Thus, the upper marble and other upper marbles which have been operated to the critical point fall into the lower marble hole again, the lockset enters a locking state again, and all previous operations are returned to zero.

The subversive change has a surprisingly good anti-theft effect, does not occupy any space and cannot be sensed by naked eyes.

Cylinder reform of lockset

The invention of the spring lock has been for one hundred and seventy years, the appearance shape of the spring always follows a rule, all the springs are required to be in a straight-up and straight-down column shape, even if suspended springs, primary and secondary springs, sleeve springs, I-shaped springs and magnetic springs, including special-shaped springs, are created, and the rigid rule that the straight-up and straight-down column shape is violated never. Everyone has a common consensus: proper clearance must exist between the marble and the marble hole of the mechanical marble lock, the clearance is too small, the failure rate is high, even the original key is inconvenient to open, and in order to meet the requirement of the mechanical marble lock on the marble, the marble must be made into a column shape with the same height. Due to the presence of the gap, the mechanism of the technical opening is thus: because a gap exists between the marble and the marble hole, the lock core is twisted by using the unlocking tool hook, and the upper marble hole and the lower marble hole are staggered to form a step. The step feeling is provided, and the marble picked up by the picking hook of the unlocking tool has the effect of 'interior appearance' and avoids blindness. The upper marble and the lower marble are controlled to be at a critical point, and the locks are all operated one by one to be in place. I want to extract the mechanism of tool cracking into one and two clean. Thought in the days, thought in the months and acquired in the years. There is a sentence of idiom called "maoxutong", this subversive change of my innovation is from the stopper comes: the wine cork can achieve the effect of zero clearance, but the cork is difficult to be removed by a special cork removing tool; the water filled in the medical taper bottle can not leak when inverted. The medical taper bottle plug is used for curing the largest locking disease of a mechanical spring lock for one hundred and seventy years, the taper spring is invented, and the technical opening mechanism is extracted once. The anti-theft mortise door lock is provided with two side marbles, and one side of each marble is provided with a taper marble, so that the unlocking tool can be used for unlocking the two side marbles. The small keyhole cannot simultaneously accommodate two lifting hooks for operation, so that zero clearance always exists and step feeling is not always available.

Sixth, the lock resists the violence invasion and changes (one)

In order to resist the invasion of a violent tool, the impeller is directly resisted as a key part, and a steel ball is placed in a lock cylinder well hole. The soldier helmet gives an innovative inspiration to combat the intrusion of force instruments.

Seven, the lock resists the violence invasion and changes the leather (two)

The 'buried' two characters on the military books can also become the source of innovation inspiration. The antitheft mortise door lock is characterized in that a steel pin is embedded in front of a first marble at the arrangement position of a lock cylinder marble, and a thief destroys the marble by a drill bit, so that the aim of destructively unlocking the marble is fulfilled. The tiny cutting tool is easy to destroy marble, and the drill bit is broken into ten bits by encountering ten steel pins.

Eight, one arrow and seven carving reform of lock

The inspiration of the notch of the tail end of a crutch of the family decorative copper hoop city wall is brought, the effect of the part of the turning impeller (latch fork) is peculiar, and the impeller after the subversive turning can play seven functions at once: 1, driving the lock bolt to open and close the door. 2, the impeller is self-locked. And 3, self-locking the lock cylinder. And 4, positioning the lock cylinder. And 5, automatically informing that the key can be safely withdrawn. And 6, strongly resisting the invasion of the open tools. 7, the unlocking tool can lock or unlock all the marbles until the critical point, and the original key is used for synchronously operating all the marbles and the wave wheel. The seven functions are all exerted by the part of the reformed wave wheel. After the impeller is subversively reformed, only one floating key, one small spring and one small ejector pin are added, so that the number of the added parts is small, the structure is simple, and the wonderful trace of the arrow-seven carving is obtained. The inventor does not have a dull feeling and a meditation and thinking about the small lock cylinder, and the effect is very little. One prop in life: the crutch completes unprecedented success of the inventor. The most unique subversive innovative thinking way of the inventor is very useful. The wave wheel of the lock core door lock (calabash container) all has only single function-driving lock bolt. The wave wheels all over the world are not changed after the invention is invented, and the wave wheels are always kept in the original state to form a shaped standard part. Why this is the case; lack of a subversive and innovative thinking mode with high success rate of rationality.

The lock is always vulnerable to the anti-unlocking function, and even if the lock is technically unlocked with difficulty, the lock can be unlocked abnormally by an unlocking means. The invention discloses a theft-proof mortise lock, which is characterized in that steel balls are arranged in a well hole of an outer lock cylinder, a steel pin is embedded in front of a first pair of balls on the outermost side of the lock cylinder, and a reformed impeller is clamped in a lock cylinder and a lock cylinder sleeve clamping groove by a floating key (steel piece) besides effectively resisting explosion-proof force components of tools such as an electric hand drill and the like. The anti-explosion function of this method is tens times greater than that of all traditional locks.

The reformed wave wheel exerts super strong function, and generates full-function effect after being matched with door marble and taper marble, even if facing electronic unlocking gun called 'god operation' and tinfoil unlocking.

The invention relates to a theft-proof mortise door lock and a working method thereof, comprising two lock cylinder sleeves acting on two sides of a door and a latch shifting fork clamped between the two lock cylinder sleeves, wherein the two lock cylinder sleeves are respectively an inner lock cylinder sleeve and an outer lock cylinder sleeve according to different acting parts, inner and outer lock cylinders positioned on the same axis are respectively embedded in the inner and outer lock cylinder sleeves, flanges are respectively arranged at the outer end of the inner lock cylinder and the inner end of the outer lock cylinder, the inner end surface and the outer end surface of the lock latch shifting fork are respectively provided with a groove butted with the two flanges, the center of the groove is internally and externally provided with a through hole in a penetrating way, a top pin is inserted in the through hole, the outer end surface of the inner lock core and the inner end surface of the outer lock core are respectively provided with a slot towards the interior of the lock core for inserting the stop piece, the inserting grooves transversely extend towards the side end of the inner lock cylinder and the outer lock cylinder and sequentially penetrate through the side walls of the lock cylinders and the lock cylinder sleeve, the inserting grooves are communicated with key holes for inserting keys in the inner lock cylinder and the outer lock cylinder, and the core-inserting door lock is simple in structure and remarkable in anti-theft effect.

The specific technical scheme of the invention is stated as follows: the anti-theft mortise door lock comprises two lock cylinder sleeves acting on two sides of a door and a latch shifting fork clamped between the two lock cylinder sleeves, wherein the two lock cylinder sleeves are respectively an inner lock cylinder sleeve and an outer lock cylinder sleeve according to different acting positions, an inner lock cylinder and an outer lock cylinder on the same axis are respectively embedded in the inner lock cylinder sleeve and the outer lock cylinder sleeve, flanges are arranged at the outer end of the inner lock cylinder and the inner end of the outer lock cylinder, grooves butted with the two flanges are formed in the inner end surface and the outer end surface of the latch shifting fork, through holes are formed in the centers of the grooves in an inner-outer penetrating mode, ejector pins are inserted in the through holes, slots for inserting stop pieces into the lock cylinders are formed in the outer end surface of the inner lock cylinder and the inner end surface of the outer lock cylinder, the slots transversely extend towards the side end of the inner lock cylinder and sequentially penetrate through the side.

Furthermore, the lock cylinders are cylindrical and are coaxially arranged with the ejector pin, the inner and outer ends of the groove transversely penetrate through the outer wall of the lock bolt shifting fork to be provided with clamping grooves for clamping the stop piece, and the clamping grooves are overlapped with the slots in equal size; the stop piece sets firmly as an organic whole by a cylinder and symmetry at the global two ladder pieces of cylinder and forms, and two ladder piece sides are all inwards concave from the surface and are established the ladder notch, the stop piece has been seted up ladder notch one end and has all been inserted in the slot, sets up the blind hole of accepting that supplies the knock pin tip to peg graft on the cylinder rather than the opposite one end stop piece.

Furthermore, latch shifting forks transversely extend out of the clamping grooves, the thickness of the stepped block is consistent with the thickness of the clamping grooves, the side ends of the stepped block do not extend beyond the clamping grooves, one end of each stepped notch is provided with a stepped section, and the other end of each stepped notch is provided with a linkage section; the center of the external lock cylinder clamping groove and the matching position of the cylinder continue to extend towards the inside of the external lock cylinder and are internally provided with steel balls, the center of the external lock cylinder clamping groove is provided with a well hole for placing the steel balls, the well hole and the external lock cylinder coaxially extend and are communicated with a key hole, and the steel balls are connected with the middle part of the stepped section in a jacking way; and a return spring is coaxially arranged in the center of the inner lock cylinder clamping groove, one end of the return spring is connected to the bottom end of the clamping groove in a propping manner, and the other end of the return spring is connected to the middle of the step section of the locking piece in the inner lock cylinder in a propping manner.

Furthermore, the outer lock cylinder sleeve comprises a lock cylinder sleeve upper part, a lock cylinder sleeve lower part and a round hole in the middle for the lock cylinder to penetrate through, the lock cylinder sleeve upper part and the lock cylinder sleeve lower part are both vertically provided with a plurality of marble holes along the length direction, the marble holes extend into the outer lock cylinder and are butted with a key hole on the outer lock cylinder, conical marble holes for containing conical marbles are respectively arranged in the marble holes at the lower part of the lock cylinder sleeve, the conical marbles comprise upper conical marbles and lower conical marbles which are butted with each other, and the lower conical marbles are respectively in one-to-one correspondence with tooth patterns arranged on the upper end surface and the lower end surface of the key; springs are arranged at the upper ends of the upper tapered marbles and the upper ends of the upper marbles in the rear marble holes and are fixedly pressed and connected through a pressing device; the upper and lower taper marbles have larger size than the upper and lower marbles at the back, and the clearance between the upper and lower taper marbles and the taper marble hole is smaller than the clearance between the upper and lower taper marbles and the marble hole; the spring holes in the upper part and the lower part of the lock cylinder sleeve are arranged in a staggered mode.

Furthermore, a door marble component is arranged in a marble hole close to the outermost end of the outer lock cylinder, the door marble component comprises an upper door marble, a lower door marble and a spring arranged at the upper end of the upper door marble, under the state that a key is not inserted, the butt joint surface of the upper door marble and the lower door marble is just positioned on the rotating surface of the lock cylinder, and the bottom end of the lower door marble is lower than the bottom end of the first lower marble at the inner side of the lower door marble under the normal state.

Further, the upper part of the lock cylinder sleeve and the outer end of the lower part of the lock cylinder sleeve are provided with door spring holes; the size of the door marble hole is consistent with that of the marble hole, the size of the door marble is larger than that of the inner marble, namely, the gap between the door marble and the door marble hole is smaller than that between the inner marble and the marble hole.

Furthermore, the whole key is slender, the cross section of the key is similar to a flying bird shape, the upper convex part of the head of the flying bird in the middle of the ridge horizontally extends towards the bevel edges at two sides to form a boss, the tops of the bevel edges at two sides of the key are provided with a plurality of tooth patterns along the length direction of the key, and the tooth patterns at two sides are respectively matched with the pins in the lock cylinder; the end surfaces of the inner lock cylinder and the outer lock cylinder are respectively provided with a key hole for inserting a key in a penetrating way, the shape of the key hole is the same as that of the end surface of the key inserting, and the other end of the key hole is fixedly connected with a key handle; the included angle between the boss and the bevel edges at the two sides is less than or equal to 90 degrees, and the tooth patterns at the two sides are not symmetrical; the bevel edge of the key inserting end is symmetrically and obliquely cut from front to back to form a tip part.

Furthermore, the crimping device comprises a lock cylinder fixing strip which is covered on the upper parts of the inner lock cylinder sleeve and the outer lock cylinder sleeve and is screwed into the lock cylinder sleeve through a bolt for fixing, and the crimping device also comprises a seal strip which is inserted at the lower end of the lower part of the outer lock cylinder sleeve for crimping a spring, wherein the seal strip is in a trapezoid-like shape so as to ensure that the horizontal splicing cannot fall off; the inner lock core sleeve is only provided with a marble hole, a marble and a spring at the same side with the upper part of the outer lock core.

Further, the nearly outer end department of outer lock core radially runs through and has seted up the pinhole, the pinhole is seted up two along the boss symmetry, and all wears to establish two wing ends in the keyhole of flyer form, the pinhole interpolation is equipped with crashproof steel round pin, crashproof steel round pin radially wears to establish the keyhole all inwards concavely and establishes the groove of stepping down to guarantee not blockked by crashproof steel round pin when inserting the keyhole.

A working method of a theft-proof mortise door lock is carried out according to the following steps: firstly, a key is inserted from the outer end of the lock core, and passes through the tooth patterns, the door marble and the marble. The taper marbles are matched with the butting, so that the butting surfaces of the upper marble and the lower marble are just positioned on the rotating surface of the lock cylinder, when the key extends to the bottom, the key is butted with the stop piece through the steel balls and pushes the linkage section of the lock cylinder to be pushed into the slot from the slot, but the step section is still left in the slot, meanwhile, the movement of the stop piece at the side pushes the ejector pin to move, the stop piece in the rear lock cylinder is pushed out of the slot to enter the slot, the reset spring is compressed, and then the key is rotated to drive the latch shifting fork to synchronously rotate, so that unlocking is realized; when the key is pulled out, the return spring is reset and stretched, and the two stop pieces and the ejector pin on the side are reset.

Because the bottom end of the gate marble is lower than the bottom end of the first lower marble behind the gate marble, when a special tool is inserted, the lower marble needs to be lifted firstly, and the lower marble is pushed into the conical marble hole of the lock cylinder sleeve by the lifting, so that the lock cylinder cannot be rotated, and one of the anti-theft design goals is achieved.

Because the clearance between the taper marble and the taper marble hole is very small, a technical opener is difficult to dislocate the lock core and the lock core sleeve in advance, and cannot judge whether the upper marble and the lower marble are in a critical point; the second design goal of preventing theft is achieved by the zero clearance of the taper marble and the matching design of the bird-shaped key hole.

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a schematic configuration diagram of an embodiment of the present invention;

FIG. 2 is a perspective view of an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of the first embodiment of the present invention after installation of the marble;

FIG. 4 is a second enlarged view of a portion of the embodiment of the present invention after installation of the marble;

FIG. 5 is a schematic view of an external cylinder sleeve configuration according to an embodiment of the present invention;

FIG. 6 is a first schematic view of the lock core according to the embodiment of the present invention;

FIG. 7 is a second schematic structural view of the lock cylinder according to the embodiment of the invention;

FIG. 8 is a schematic view of the connection state of the outer lock cylinder sleeve and the crimping device in the embodiment of the invention;

FIG. 9 is a schematic view of the latch fork according to an embodiment of the present invention;

FIG. 10 is a schematic view showing the construction of a stopper in the embodiment of the present invention;

FIG. 11 is an internal view of a usage state in an embodiment of the present invention;

FIG. 12 is a schematic view of a key construction in accordance with an embodiment of the present invention;

FIG. 13 is an end view of a key in an embodiment of the present invention;

FIG. 14 is an end view of a lock cylinder in an embodiment of the present invention;

fig. 15 is a schematic view illustrating the engagement of the anti-collision steel pin with the keyhole according to the embodiment of the invention.

In the figure: 1-lock core, 2-key, 3-bevel edge, 4-boss, 5-tooth, 6-keyhole, 7-tip, 8-key handle, 9-outer wing hole, 10-inner wing hole, 11-inner lock core, 12-outer lock core, 13-flange, 14-steel ball, 15-reset spring, 16-outer lock core sleeve, 17-inner lock core sleeve, 18-well hole, 19-pin hole, 20-anti-collision steel pin, 21-abdication groove; a1-a latch fork, A2-a through hole, A3-a top pin, A5-a groove, A6-a stop plate, A7-a slot, A8-a slot, A9-a cylinder, A10-a step block, A11-a step notch, A12-a receiving blind hole, A13-a step section, A14-a linkage section, B1-a cylinder sleeve, B2-an upper part of the cylinder sleeve, B3-a lower part of the cylinder sleeve, B4-a round hole, B5-a ball hole, B6-a taper ball, B7-a taper ball hole, B8-an upper taper ball, B9-a lower taper ball, B10-a spring, B11-a lock cylinder fixing strip, and B12-a seal; c1-door marble component, C2-upper door marble, C3-lower door marble, C4-door marble hole.

Detailed Description

In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.

As shown in fig. 1 to 15, a theft-proof mortise door lock includes two core sleeves B1 acting on both sides of a door and a latch fork a1 clamped between the two core sleeves, the two core sleeves are respectively an inner core sleeve and an outer core sleeve according to different acting positions, an inner core 1 and an outer core 1 on the same axis are respectively embedded in the inner and outer core sleeves, a flange 13 is respectively disposed at an outer end of the inner core 11 and an inner end of the outer core 12, a groove a5 butted with the two flanges is respectively disposed on an inner end surface and an outer end surface of the latch fork, a through hole a2 is formed through the center of the groove, a knock pin A3 is inserted in the through hole, a slot A8 for inserting a stopper a6 is respectively formed in the inner core on the outer end surface of the inner core and the inner end surface of the outer core, the slot extends transversely towards the inner end and the outer end of the outer core to penetrate through the side walls of the core and the core sleeves in turn, and the slot.

In the embodiment of the invention, the lock cylinders are cylindrical and are coaxially arranged with the ejector pin, the inner end and the outer end of each groove transversely penetrate through the outer wall of the lock bolt shifting fork to be provided with a clamping groove A7 for clamping the stop piece, and the clamping groove is overlapped with the slot in equal size; the stop piece sets firmly as an organic whole by a cylinder A9 and symmetry at the global two ladder pieces A10 of cylinder and constitutes, and two ladder piece sides are all inwards concave from the surface and are established ladder notch A11, the stop piece has been seted up ladder notch one end and has all been inserted in the slot, sets up on the cylinder of its opposite one end stop piece and supplies the bearing blind hole A12 that the knock pin tip was pegged graft.

In the embodiment of the invention, latch and shifting forks transversely extend out of the clamping grooves, the thickness of the step block is consistent with the thickness of the clamping grooves, the side ends of the step block do not extend out of the clamping grooves, one end of each step notch is provided with a step section A13, and the other end of each step notch is provided with a linkage section A14; the matching part of the center of the external lock cylinder clamping groove and the cylinder extends towards the inside of the external lock cylinder continuously and is internally provided with a steel ball 14, the center of the external lock cylinder clamping groove is provided with a well hole 18 for placing the steel ball, the well hole and the external lock cylinder extend coaxially and are communicated with a key hole, and the steel ball is connected with the middle part of the step section in a jacking way; a return spring 15 is coaxially arranged in the center of the inner lock cylinder clamping groove, one end of the return spring is connected to the bottom end of the clamping groove in a propping mode, and the other end of the return spring is connected to the middle of a stop piece stepped section in the inner lock cylinder in a propping mode; a cylindrical cushion block can be arranged at the contact position of the key and the steel ball; the steel ball can also effectively prevent theft, when a thief drills by using a tool of the drill bit, the drill bit is inclined and broken due to the fact that the surface of the steel ball is smooth when the drill bit drills into the steel ball side, and the purpose of preventing theft is achieved.

In the embodiment of the invention, the outer lock cylinder sleeve 16 comprises a lock cylinder sleeve upper part B2, a lock cylinder sleeve lower part B3 and a round hole B4 provided in the middle for the lock cylinder to penetrate through, a plurality of ball holes B5 are vertically arranged on the upper part and the lower part of the lock cylinder sleeve along the length direction, the ball holes extend into the outer lock cylinder and are butted with a key hole on the outer lock cylinder, conical ball holes B7 for accommodating conical balls B6 are respectively arranged in the ball holes on the upper part and the lower part of the lock cylinder sleeve, the conical balls comprise upper conical balls B8 and lower conical balls B9 which are butted with each other, and the lower conical balls are respectively in one-to-one correspondence with tooth patterns arranged on the surfaces of the upper end and the lower end of the key; springs B10 are arranged at the upper ends of the upper tapered pins and the upper ends of the upper pins in the rear pin holes and are fixedly pressed by a pressing device, as shown in FIG. 3, after a key is inserted, the springs at the upper ends of the upper gate pins are in a normal state, and the springs at the upper ends of other upper pins are in a compressed state; the upper and lower taper marbles have larger size than the upper and lower marbles at the back, and the clearance between the upper and lower taper marbles and the taper marble hole is smaller than the clearance between the upper and lower taper marbles and the marble hole; the pin holes in the upper part and the lower part of the lock cylinder sleeve are arranged in a staggered mode, so that the problem that the key is easy to break due to the fact that the teeth arranged on the key are symmetrical and the 'bee waist' is formed is solved.

Because the taper of the taper marble and the taper marble hole are the same and are in a circular truncated cone shape, the gap between the taper marble and the taper marble hole is very small, a technical opener is difficult to dislocate the lock core and the lock core sleeve in advance, and cannot judge whether the upper marble and the lower marble are in a critical point; the anti-theft capability of the lockset is greatly enhanced through the zero clearance of the taper marble and the matching design of the bird-shaped key hole.

In the embodiment of the invention, a door marble component C1 is arranged in a marble hole close to the outermost end of the outer lock cylinder, the door marble component comprises an upper door marble C2, a lower door marble C3 and a spring at the upper end of the upper door marble, under the state that a key is not inserted, the butt joint surface of the upper door marble and the lower door marble is just positioned on the rotating surface of the lock cylinder, and the bottom end of the lower door marble is lower than the bottom end of the first lower marble at the inner side of the lower door marble under the normal state.

In the embodiment of the invention, the upper part of the lock cylinder sleeve and the near outer end of the lower part of the lock cylinder sleeve are both provided with a door spring hole C4; the size of the door marble hole is consistent with that of the marble hole, the size of the door marble is larger than that of the inner marble, namely, the gap between the door marble and the door marble hole is smaller than that between the inner marble and the marble hole.

When a special tool is used for being inserted into a key hole, even if the small unlocking tool has a certain thickness, the lower door marble lifting part can extend into a marble hole of a lock cylinder sleeve to achieve self-locking, and because the door marble is slightly large and the gap between the door marble and a conical marble hole is small, after the self-locking is achieved, the tool needs to be drawn out to relieve the self-locking, namely the technical unlocking cannot be carried out through the special tool, and under the condition that the gap is small, a technical unlocking person is difficult to dislocate a lock cylinder and the lock cylinder sleeve in advance, and is difficult to judge whether the upper marble and the lower marble are in a critical point, so that the theft-preventing capability of the lock is greatly enhanced.

In the embodiment of the invention, the key 2 is integrally slender and has a cross section similar to a flying bird shape, the upper convex parts of the head of the flying bird in the middle of the ridge horizontally extend towards the inclined sides 3 at two sides to form a boss 4, the tops of the inclined sides at two sides of the key are provided with a plurality of teeth 5 along the length direction of the key, and the teeth at two sides are respectively matched with the pins in the lock cylinder; the end surfaces of the inner lock cylinder and the outer lock cylinder are respectively provided with a key hole for inserting a key in a penetrating way, 6 the shape of the key hole is the same as that of the end surface of the key inserting, and the other end of the key hole is fixedly connected with a key handle; the included angle between the boss and the bevel edges at the two sides is less than or equal to 90 degrees, and the tooth patterns at the two sides are not symmetrical; the bevel edge of the key inserting end is symmetrically and obliquely cut from front to back to form a tip part 7.

The key is rotated, the boss faces downwards, the end face of the key is in a shape similar to a flying bird, the boss corresponding to the key hole is the head of the flying bird, the inclined edges at two sides corresponding to the key hole are outer wing holes 9, and the joint of the boss and the inclined edge turning corresponding to the key hole is an inner wing hole 10; when a thief steals, the tool can extend into the head, but because the marbles are all arranged at the outer wing holes, even if the tool can rotate from the head into the inner wing holes, the tool can not touch the marbles, the tool can be blocked by an included angle of 90 degrees or less than 90 degrees between the inner wing holes and the outer wing holes, and the tool can not touch the marbles in the inner wing holes; the tool for lifting the marble must directly extend into the outer wing hole, but the operating tool loses the activity space necessary for lifting the marble, and the antitheft design concept is met.

In the embodiment of the invention, the crimping device comprises a lock cylinder fixing strip B11 which is covered on the upper parts of the inner lock cylinder sleeve and the outer lock cylinder sleeve and is screwed into the lock cylinder sleeve through a bolt for fixing, and the crimping device also comprises a seal B12 which is inserted at the lower end of the lower part of the outer lock cylinder sleeve for crimping a spring, wherein the seal is in a trapezoid-like shape so as to ensure that the horizontal splicing cannot fall off; the inner lock cylinder sleeve 17 is only provided with a ball hole, a ball and a spring at the same side with the upper part of the outer lock cylinder.

In the embodiment of the invention, a pin hole 19 is radially penetrated and formed at the position close to the outer end of the outer lock cylinder, two pin holes are symmetrically formed along a boss and penetrate through two wing ends of a flybird-shaped key hole, an anti-collision steel pin 20 is inserted into each pin hole, and the anti-collision steel pins radially penetrate through the key holes and are inwards concavely provided with abdicating grooves 21 so as to ensure that the anti-collision steel pins do not obstruct the insertion of the anti-collision steel pins when the anti-collision steel pins are inserted into the key holes, when a thief uses a drill bit to powerfully damage the key holes, the drill bit enters the key holes and then touches the anti-collision steel pins to break, and the powerful damage is effectively prevented from pry.

A working method of a theft-proof mortise door lock is carried out according to the following steps: firstly, a key is inserted from the outer end of the lock core, and passes through the tooth patterns, the door marble and the marble. The taper marbles are matched with the butting, so that the butting surfaces of the upper marble and the lower marble are just positioned on the rotating surface of the lock cylinder, when the key extends to the bottom, the key is butted with the stop piece through the steel balls and pushes the linkage section of the lock cylinder to be pushed into the slot from the slot, but the step section is still left in the slot, meanwhile, the movement of the stop piece at the side pushes the ejector pin to move, the stop piece in the rear lock cylinder is pushed out of the slot to enter the slot, the reset spring is compressed, and then the key is rotated to drive the latch shifting fork to synchronously rotate, so that unlocking is realized; when the key is pulled out, the reset spring is reset and stretched, and the two stop pieces and the ejector pin on the side are reset; through the heavy design of the key, the lock core, the door marble, the taper marble and the lock latch shifting fork, the theft is forbidden layer by layer, and the theft-forbidden capacity of the lock is greatly improved.

The invention is not limited to the above best mode, and any person can obtain other various forms of anti-theft mortise door locks and working methods thereof under the teaching of the invention. All equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.

Claims

1. The utility model provides a forbidden lock pin lock which characterized in that: the inner lock core sleeve and the outer lock core sleeve are respectively embedded with an inner lock core and an outer lock core which are positioned on the same axis in a wave wheel (a lock latch shifting fork) clamped between the inner lock core sleeve and the outer lock core sleeve, flanges are arranged at the outer end of the inner lock core and the inner end of the outer lock core, grooves butted with the two flanges are formed in the inner end surface and the outer end surface of the wave wheel (the lock latch shifting fork), through holes are formed in the centers of the grooves in an inner-outer penetrating mode, ejector pins are arranged in the through holes, slots for inserting floating keys are formed in the outer end surface of the inner lock core and the inner end surface of the outer lock core towards the interior of the lock core, the slots transversely extend towards the side end of the inner lock core and.

2. The anti-theft mortise door lock according to claim 1, characterized in that: the lock cylinders are cylindrical and coaxial with the ejector pin, the inner end and the outer end of each groove transversely penetrate through the outer wall of the impeller (the latch shifting fork) and are provided with clamping grooves for clamping the floating keys, and the clamping grooves are overlapped with the positions of the slots to be equal in size; the floating key is set firmly as an organic whole by a cylinder and symmetry at the global two ladder pieces of cylinder and constitutes, the ladder piece divides the high-order low order two-stage, and two ladder piece sides are all inwards concave from the surface and are established the ladder notch, floating key has been seted up the ladder notch end and has all inserted in the slot, sets up the blind hole of accepting that supplies the knock pin top to peg graft on rather than the cylinder of the floating key of opposite one end.

3. The anti-theft mortise door lock according to claim 2, characterized in that: the clamping grooves are transversely extended with wave wheels (lock latch shifting forks), the thickness of the stepped block is consistent with the opening width of the clamping grooves, the side ends of the stepped block do not extend beyond the clamping grooves, one end of each stepped notch is provided with a stepped section, and the other end of each stepped notch is provided with a linkage section; the center of the external lock cylinder clamping groove and the matching position of the cylinder continue to extend towards the inside of the external lock cylinder and are internally provided with steel balls, the center of the external lock cylinder clamping groove is provided with a well hole for placing the steel balls, the well hole and the external lock cylinder coaxially extend and are communicated with a key hole, and the steel balls are connected with the middle part of the stepped section in a jacking way; and a return spring is coaxially arranged in the center of the inner lock cylinder clamping groove, one end of the return spring is connected to the bottom end of the clamping groove in a propping manner, and the other end of the return spring is connected to the middle part of the step section of the floating key in a propping manner.

4. The anti-theft mortise door lock according to claim 1, characterized in that: the outer lock cylinder sleeve comprises a lock cylinder sleeve upper part, a lock cylinder sleeve lower part and a round hole in the middle for the lock cylinder to penetrate, the lock cylinder sleeve upper part and the lock cylinder sleeve lower part are vertically provided with a plurality of marble holes in the extending direction, the marble holes extend into the outer lock cylinder and are butted with a key hole on the outer lock cylinder, conical marble holes for containing conical marbles are respectively arranged in the marble holes at the lower part of the lock cylinder sleeve, the conical marbles comprise upper conical marbles and lower conical marbles which are butted with each other, and the lower conical marbles are respectively in one-to-one correspondence with tooth patterns arranged on the surfaces of the upper end and the lower end of the key; and springs are arranged at the upper ends of the upper tapered marble and the upper ends of the upper marbles in the marble holes in the front and rear directions and are fixedly pressed and connected through a pressing connection device.

5. The anti-theft mortise door lock according to claim 1, characterized in that: the butt joint surface of the upper door marble and the lower door marble is just positioned on the rotating surface of the lock core under the state that a key is not inserted, and the bottom end of the lower door marble is lower than the bottom end of the first cylindrical lower marble at the inner side of the lower door marble under the normal state.

6. The anti-theft mortise door lock according to claim 4 or 5, characterized in that: the upper part of the lock cylinder sleeve and the outer end of the lower part of the lock cylinder sleeve close to the outer end are provided with door spring holes; the size of the door marble hole is consistent with that of the marble hole, the size of the door marble is larger than that of the inner marble, namely, the gap between the door marble and the door marble hole is smaller than that between the inner marble and the marble hole.

7. The anti-theft mortise door lock according to claim 1, characterized in that: the whole key is slender, the cross section of the key is similar to a shape of a flying bird, the flying bird-shaped key consists of a square bird head, wings and a bird body, the upper convex part of the head of the flying bird in the middle of a ridge horizontally extends towards the bevel edges at two sides to form a boss, the tops of the bevel edges at two sides of the key are provided with a plurality of tooth patterns along the length direction of the key, and the tooth patterns at two sides are respectively matched with the pins in the lock cylinder; the end surfaces of the inner lock cylinder and the outer lock cylinder are respectively provided with a key hole for inserting a key in a penetrating way, the shape of the key hole is the same as that of the end surface of the key inserting, and the other end of the key hole is fixedly connected with a key handle; the included angle between the wings and the bird body is less than 90 degrees, and the tooth flowers on the two sides are not symmetrical; the bevel edges of the key inserting ends are symmetrically and obliquely cut from front to back to form a tip part.

8. The anti-theft mortise door lock according to claim 4, characterized in that: the crimping device comprises a fixing strip which is covered on the inner lock cylinder sleeve and the outer lock cylinder sleeve and is connected into the lock cylinder sleeve through a bolt for fixing, and also comprises a seal which is inserted at the lower end of the lower part of the outer lock cylinder sleeve and is used for crimping a spring, wherein the seal is trapezoidal, and the gradient of a seal groove is consistent with that of two bevel edges of the seal, so that the horizontal splicing is ensured not to fall off; the inner lock core sleeve is only provided with a marble hole, a marble and a spring at the same side with the upper part of the outer lock core.

9. The anti-theft mortise door lock according to claim 7, wherein: the nearly outer end department of outer lock core radially runs through and has seted up the pinhole, the pinhole is seted up two along the boss symmetry, and all wears to establish two wing ends in the keyhole of flying bird form, the pinhole interpolation is equipped with crashproof steel round pin, crashproof steel round pin radially wears to establish the keyhole department and all inwards concavely establishes the groove of stepping down.

10. A working method of a theft-proof mortise door lock, characterized by using any one of the theft-proof mortise door locks of claims 1 to 9, and performing the following steps: firstly, a key is inserted from the outer end of a lock cylinder, the key is matched with door pins, pins and dimension pins to be abutted through teeth, so that the abutting surfaces of the upper pin and the lower pin are just positioned on the rotating surface of the lock cylinder, when the key extends to the bottom, the key is abutted to a floating key through steel balls and then pushes a linkage section of the floating key to be pushed into a slot from a clamping groove, but a step section is still left in the slot, meanwhile, the movement of the side floating key pushes a pushing pin to move, the floating key in the rear lock cylinder is pushed out of the slot to enter the clamping groove, a reset spring compresses, and then the key is rotated to drive a wave wheel to synchronously rotate so as to realize; when the key is pulled out, the reset spring is reset and stretched, the inner floating key, the outer floating key and the ejector pin are reset, and the lock cylinder is reset.