WO2016180344A1

WO2016180344A1 - Encoding mechanism and key for clutch-type lock

Info

Publication number: WO2016180344A1
Application number: PCT/CN2016/081733
Authority: WO
Inventors: 徐明达
Original assignee: 徐明达
Priority date: 2015-05-12
Filing date: 2016-05-11
Publication date: 2016-11-17
Also published as: CN104912394B; CN104912394A

Abstract

An encoding mechanism and a key for a clutch-type lock. A clutch pin (6) is disposed inside the lock. The clutch pin (6) is linked to an unlocking mechanism. An encoding mechanism is disposed inside the lock, and the encoding mechanism comprises multiple encoding sheets (2). A reset block (213) and a tooth socket (212) are disposed on a protruding block (42) of an encoding sheet (2). Each encoding sheet (2) has a same protruding block (42), but has a different position relative to a clutch groove (221). The multiple encoding sheets (2) are axially stacked, in a concentric and co-axial manner. Multiple tooth blocks (11) are disposed on a key (1), which respectively correspond to the tooth sockets (212) of the multiple encoding sheets (2).

Description

Clutch mechanism and key for clutch lock

Technical field

The present invention relates to a lock, and more particularly to a coding mechanism for a clutch lock and a key associated therewith.

Background technique

The lock cylinder is the most important component of the lock, which determines the anti-theft performance of the lock. At present, there are bullet locks commonly used in life. There are a variety of special-shaped anti-lifting marbles in the lock cylinder, which are designed with unique marble and blade structure. Anti-technical opening security features. The invention of the clutch lock greatly improves the anti-technical opening ability, and particularly improves the anti-rotation torque breaking ability. At present, some clutch locks, marble lock cylinders, etc., can solve the basic anti-theft function, but the key mutual opening rate is high, the key amount of the lock cylinder is small, and the lock core structure is complicated and the processing is difficult. Therefore, it is necessary to design a coding and decoding mechanism for a lock that has a strong technology opening capability and a large amount of coding information.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide a coding mechanism and a key of a clutch type lock, which generate a large amount of coded information and strong anti-technology opening capability.

The technical solution adopted by the invention to solve the above problems is: a coding mechanism and a key of the clutch type lock head, a clutch pin is arranged in the lock head, the clutch pin is interlocked with the unlocking mechanism, a coding mechanism is arranged in the lock head, and the coding mechanism includes a plurality of code pieces. The code piece is a ring-shaped piece, the outer edge of the ring is provided with a clutch groove, and the inner edge of the ring is provided with a protrusion protruding toward the center of the ring, and the block is provided with a reset block and a tooth groove, and each code piece The bumps are all the same, the positions of the bumps are not exactly the same with respect to the clutch grooves, the plurality of code sheets are stacked in the axial direction, the center of the ring is coaxial, and the depth of the clutch grooves is the same; the rack is distributed along the axial direction of the key a plurality of tooth blocks are arranged on the rack; when the key insertion coding mechanism rotates, the plurality of tooth blocks on the key are respectively meshed with the plurality of code piece slots, and the code piece is rotated to make the clutch grooves of all the code pieces Positively facing the clutch pin, the clutch pin extends into the clutch groove, and the interlocking unlocking mechanism is unlocked after the clutch pin is actuated; the reset bar is arranged on the key or the coding mechanism, and the reverse rotation key drives the reset bar and the plurality of code pieces Engaging block has the block encoding all reset to the same direction of rotation of the sheet, the clutch recess not in the same direction, the clutch recess of the clutch pin is extruded, the clutch operation linkage unlocking means locking pin.

The further improved coding mechanism further comprises a guiding shaft, wherein the guiding shaft is located in a plurality of coding pieces, the guiding shaft is hollow inside, the front end is provided with a key hole matched with the cross section of the key, the key is inserted into the guiding shaft through the key hole, and the guiding shaft frame is arranged A strip hole is formed in the body wall, and the tooth block on the key is exposed from the strip hole, and the outer wall of the frame body is fixed with an axial reset strip.

The further improved guide shaft casing has a plurality of clips, the clip is in the shape of a ring, and the outer edge of the clip has a clip groove, all the clips are in the same direction and the clip groove is always facing the clutch pin, the clutch pin It can be snapped into the groove of the clip, and the clip is spaced apart from the code piece.

The further improved outer edge of the clip is provided with a clip bump, and the bump is interlocked with the unlocking mechanism.

A rear plate is attached to the rear end of the further improved guide shaft.

In a preferred technical solution, the key has a plurality of axial racks, and each of the racks is provided with a plurality of blocks of different heights, and each of the code sheets is provided with a plurality of stepped slots, and after the key is inserted into the coding mechanism, the teeth are The block and the tooth groove are matched one by one, and meshed while rotating.

The edge of the clutch groove and the clutch pin are chamfered.

Compared with the prior art, the advantages of the present invention are as follows: 1. A plurality of code sheets are disposed, and the relative distribution positions of the slots of the code sheets and the clutch grooves are not completely the same, so that all the clutch grooves are rotated to the same direction, It is necessary to rely on the matching key, through the tooth block and the tooth groove successively meshing, each code piece is moved at different angles, because the number of code pieces is more, the position of the tooth groove is more diverse, the code included in the coding mechanism The greater the amount of information, the stronger the security. 2. The larger the amount of coded information, the higher the requirements on the position and height of the key rack and the tooth block of the dial gear, and the key requirement is enhanced. The probability of the same key is greatly reduced, and it is not easy to copy. 3. Increase the clips and rear guards to make the encoders rotate more stably. The coded sheets and clips are placed at intervals, which further avoids the friction and interference between the encoders. After fixing the shields, the encoders are prevented. The clip is loose. 4. Rotate the key and drive the reset block through the reset bar so that the reset blocks of all the code chips are in the same position. When the code chip is reset, the key is inserted more smoothly. 5. The coded piece of the invention has a simple structure, a small volume, and a low manufacturing cost.

DRAWINGS

1 is a schematic structural view of a clutch type locking mechanism, a key, and a clutch pin according to a first embodiment of the present invention.

FIG. 2 is a schematic structural view of three code sheets in FIG. 1. FIG.

Fig. 3 is a schematic view showing the arrangement of a plurality of code sheets after rotation.

Figure 4 is a schematic illustration of the key piece of Figure 1 driving one of the code sheets.

Figure 5 is a schematic diagram of a key decoding process.

Figure 6 is a schematic view showing the structure of the guide shaft, the clip, and the rear guard.

Figure 7 is an exploded view of the structure of Figure 6.

Fig. 8 is a schematic structural view of a guide shaft.

Figure 9 is a schematic view showing the structure of the clip.

Figure 10 is a schematic view showing the structure of the rear guard.

Figure 11 is a cross-sectional view of the structure of Figure 6 after being locked.

Figure 12 is a cross-sectional view showing the structure of Figure 6 after being unlocked.

Figure 13 is a cross-sectional view showing the key, the code piece, and the guide shaft in the second embodiment.

Figure 14 is a cross-sectional view showing the key, the code piece, and the guide shaft in the third embodiment.

In the figure: 1, key, 11, tooth block, 12, another tooth block, 15, Nth tooth block, 101, second key, 102, third key.

2, coded film, 21, the first type of code film, 211, the first type of code chip clutch groove, 212, the first type of code chip slot, 213, the first type of code chip reset block, 22, the second type of code Slice, 221, second type code chip clutch groove, 222, second type code chip slot, 223, second type code chip reset block, 23, third type code chip, 231, third type code chip clutch concave Slot, 232, the third type of code chip slot, 233, the third type of code chip reset block, 241, the M type code chip clutch groove, 25, the Nth type code piece, 251, the Nth type code piece clutch concave Slot, 252, N-type coded chip slot, 200, clutch slot.

3. Guide shaft, 31, key hole, 32, frame body, 33, strip hole, 34, reset bar, 35, rear guard block, 36, shoulder. 301, a second type of guide shaft.

4, clips, 41, clip grooves, 42, bumps.

5. Rear guard piece, 51, rear guard piece groove, 52, rear guard piece card slot.

6, clutch pin.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Embodiment 1:

The coding mechanism, the key 1 and the clutch pin 6 are shown in FIG. The encoding mechanism includes a plurality of code sheets 2, the structure of which is shown in FIG. 2, the code sheet 2 is a ring-shaped sheet, and the plurality of code sheets are classified into N types, and the outer edge of the ring of the first type of code sheet 21 has the first The code-like piece is separated from the groove 211, and the inner edge of the ring is provided with a protrusion protruding toward the center of the ring, and the first type of code piece slot 212 is opened on the protrusion; the outer edge of the ring of the second type code piece 22 is opened. There is a second type of code piece clutch groove 221, the inner edge of the ring is provided with a protrusion protruding toward the center of the ring, and the second type of code piece slot 222 is opened on the protrusion; the ring of the third type code piece 23 The outer edge is provided with a third type of code piece clutch groove 231, the inner edge of the ring is provided with a protrusion protruding toward the center of the ring, and the third type of code piece slot 232 is opened on the protrusion; and so on, the M type The code piece has a M-type code piece clutch groove 241 and a M-type code piece slot, and the N-type code piece has a N-type code piece clutch groove 251 and a N-type code piece slot. The shape of the clutch groove of the N-type code piece is the same, and the shape of the groove of the code piece is also the same. The difference is that the clutch groove of each type of code piece has a different relative position from the tooth groove of the code piece, as shown in FIG. For the coded piece, the angle between the groove of the coded piece and the groove of the coded piece is different, and there is a difference in angle. For the convenience of description, all the clutch grooves of the code piece are collectively referred to as a clutch groove, and all the groove of the code piece are collectively referred to as a cogging. .

Each of the code sheets 2 can be provided with a plurality of slots, each of which has a convex protrusion height, and the plurality of slots are stepped Shape, as shown in Figure 2, the three types of coded slots.

As shown in FIG. 1 , a plurality of code sheets 2 are stacked in the axial direction, and the outer diameter of the ring is the same. A plurality of code pieces can be set by using a circular sleeve, so that the center of the code piece is coaxial, and each code piece can be independently The shaft rotates, and all the clutch grooves are in the same direction after the rotation, and the depth of the clutch groove is the same. As shown in FIG. 3, all the clutch grooves communicate with each other to form a clutch passage 200, and the width of the clutch groove 200 is larger than the clutch pin. The width of 6. Thus, when all the clutch grooves are not rotated to the same direction, the stacked plurality of code sheets are entirely cylindrical, and the clutch pins 6 cannot be engaged with the encoder cylinder, as shown in FIG. 1; when all the clutches are engaged; When the groove rotates to the same direction, as shown in FIG. 3, the clutch pin 6 can fall into the clutch groove 200, and the clutch pin 6 can be engaged with the entire code piece cylinder, depending on whether the clutch pin 6 falls into the clutch groove. The clutch action is realized in 200, and the clutch pin 6 is interlocked with other components of the lock body to finally unlock.

To achieve different angles of relative rotation of the plurality of code pieces, the clutch grooves are formed in the same direction to form the clutch groove 200, and the key is matched with all the code pieces. The structure of the key 1 is as shown in FIG. In the axial shape, in the embodiment, the key 1 has four axial racks, and each of the racks is provided with a plurality of tooth blocks of different heights, such as the tooth block 11 and the other tooth block 12 as shown in FIG. One-way engagement with the slot on the encoder chip.

The action of the key 1 and the code piece 2 is as shown in Fig. 4. The key 1 can be inserted into the middle of the code piece. For example, the tooth block 11 on the key 1 can be engaged with the slot 212 on the code piece, and the key 1 rotates to drive the code piece to rotate. Similarly, other tooth blocks can be meshed with the slots of other code sheets. Of course, the tooth blocks on the key 1 are matched according to the slots on the code piece, and the code pieces of one layer and the teeth of the same key at a certain length position. The blocks are mated, and a tooth slot of a certain height on the same code piece is engaged with a tooth block of a certain height.

In the initial state, since the clutch grooves on the different code sheets are in different positions, in order to rotate the key 1 to rotate the clutch grooves of the plurality of code sheets 2 to the same direction, on the key, the tooth blocks corresponding to the different slots are on the projection surface. There is a corresponding angle on it. For example, the angle between the clutch groove of the M-th code piece and the lower side of the clutch pin 6 is A, and the angle between the clutch groove of the N-th code piece and the lower side of the clutch pin 6 is B. If A is larger than B, then The corresponding tooth block of the second layer code piece is first meshed with the tooth groove of the code piece, and after the rotation angle (AB), the tooth block corresponding to the Nth code piece is re-engaged with the tooth groove of the Nth code piece, so that the key rotates. The angles are the same, but there is a sequence of engagement, the angular difference when meshing is equal to the difference between angles A and B, and vice versa. The coded pieces of the other layers are also meshed and rotated in the same manner.

As shown in Fig. 5 (1), in the initial state, the clutch groove 221 on the second layer code sheet 22 is located on the lower right side, and the clutch groove 251 on the Nth code sheet 25 is located on the left side, and the two clutch recesses are The slots are not directly under the clutch pins 6, but the bumps of the two code sheets are at the same position, and the key 1 is inserted, and the teeth on the key 1 are not meshed with the slots. Rotating the key 1 clockwise, as shown in Fig. 5 (2), the slots on the second layer of code sheets 22 are just engaged with the corresponding blocks 12, and the slots on the Nth layer of code sheets 25 are not yet corresponding to the teeth. Block 15 is engaged (the dashed line in the figure is not the slot of the layer). Continue to be in time The needle rotates the key, as shown in Fig. 5 (3), after the tooth groove on the second layer code piece 22 is engaged with the corresponding tooth block 12, the key drives the second layer code piece to rotate by a certain angle, and the Nth layer code The slots on the sheet 25 are just engaged with the corresponding blocks 15, at which point the clutch grooves of the two layers of code sheets are in the same position. Continue to rotate the key 90° clockwise. As shown in Fig. 5 (4), the key 1 drives the second layer code piece 22 and the Nth layer code piece 25 to rotate 90° at the same time, and rotates to directly below the clutch pin 6. In this process, the second layer of the coded piece is first meshed and rotated by a certain angle, and the Nth layer of the coded piece is again engaged, and then rotated simultaneously with the second layer of the coded piece, that is, the second layer of the coded piece is advanced in advance by the angle of rotation. The angle difference between the coded piece and the Nth layer coded piece is compensated for. Similarly, the clutch grooves of the code sheets of the other layers are sequentially rotated below the clutch pins to form a clutch through slot 200, and the clutch pins 6 fall into the clutch slot 200, and the clutch pins 6 are interlocked with other components of the lock to unlock.

The coding mechanism uses the different positions of the inner edges of the inner circumference of the plurality of code sheets 2 to set the cogging and the different cogging heights on the same code piece, and realize high-level coding information according to the need, which can theoretically achieve an infinite order of magnitude. Coding, only by matching the key 1, the key 1 is rotated, the tooth block on the key is meshed with the tooth groove on the code piece, and finally all the code pieces are simultaneously rotated to the clutch pin 6 to unlock. Since the key 1 must be matched with the coding mechanism, and the coding state of the coding mechanism is large, the key 1 is difficult to copy, and the technical unlocking is difficult. The lock core of the coding mechanism is more secure.

In order to increase the stability during the rotation of the plurality of code sheets and prevent the key from shaking excessively in the middle of the code sheet, the guide shaft 3 is increased, and the structure thereof is as shown in FIG. 6, FIG. 7, FIG. 8, and the guide shaft 3 is a plurality of columns. The guide shaft 3 is hollow inside, and the front end is provided with a key hole 31 which cooperates with the cross section of the key 1, and the key 1 can be inserted into the guide shaft 3 through the key hole 31. The front section of the guide shaft 3 is provided with a shoulder 36 on which a groove is provided. The rear portion of the guide shaft 3 is a frame body 32. The wall of the frame body 32 has a strip-shaped hole 33. The strip-shaped hole 33 corresponds to the key hole 31. After the key is inserted into the guide shaft 3, the tooth block on the key 1 can be exposed. Hole 33. The outer wall of the frame body 32 is fixed with an axial return strip 34, and the reset strip 34 projects outwardly of the frame body 32. A rear rear panel block 35 is provided at the rear of the frame body 32.

After the key 1 is inserted into the keyhole 31, the key 1 is provided with a positioning block to prevent the key 1 from being inserted too deeply. After the key 1 is inserted, a certain tooth block corresponds to a corresponding layer of the coded piece to ensure positional correspondence. .

In order to cooperate with the reset bar 34, the code block 2 is provided with a reset block, such as the first type code slice reset block 213, the second type code slice reset block 223, and the third type code slice slot 233 shown in FIG. In order to reset the block, the composite strip 34 can be engaged with the reset block, but the acting surfaces of the engaging surfaces of the two are opposite to the acting surfaces of the tooth block and the tooth groove.

The function of the reset bar 34 is to reset the coded piece to the initial state, and the key block is successively engaged with the reset block of each layer of the code piece and angularly displaced to the initial position, that is, the reset blocks of all the code pieces are on the same straight line, and the clutch is concave. The position between the groove and the reset block is different, so the clutch groove is not on the same straight line, and the clutch pin is extruded out of the clutch groove, as shown in FIG. 1 and FIG. The state of the coded chip, the decoding state is disturbed back to the initial position, and the decoding key is conveniently inserted and removed.

In order to reset the clutch pin smoothly, the clutch pin is chamfered at the edge of the engaging groove of the clutch pin.

Obviously, a reset bar can be arranged on the key instead of the reset bar on the guide shaft, and the principle and structure are similar, and will not be described again.

Further improving the coding mechanism, adding the clip 4, the structure is as shown in FIG. 9, the clip 4 is in the shape of a ring, and the outer edge of the clip is provided with a clip groove 41, all the clips are in the same direction and the clip groove 41 is always facing the clutch pin 6, the clutch pin 6 can be caught in the clip groove 41, and the other portion of the outer edge of the clip is provided with the clip projection 42. When the clutch pin 6 is inserted into the clutch groove 200 and the clip groove, the code piece, the clutch pin and the clip piece can be linked, and the protrusion 42 can be used to connect other mechanisms to realize the linkage between the decoding mechanism and other mechanisms.

The structure of the rear cover 5 further increased is as shown in FIG. 10, the rear cover 5 is in the shape of a ring, the inner wall of the rear cover 5 is provided with a rear cover card slot 52, and the outer wall of the rear cover is provided with a rear cover groove. 51.

The mounting method of the coding mechanism: the clip 4, the code piece 2, the clip 4, the code piece 2, the clip 4 are sequentially placed on the frame body 32 of the guide shaft 3, and the clip 4 and the code piece 2 are spaced apart, and It is ensured that the clip 4 and the code piece 2 are rotatable, and the clip grooves of all the clips are in the same direction. The rear guard 5 is fixed to the rear portion of the frame 32 through the rear guard card slot 52 and the rear guard clip 35. The outer diameter of the code piece 2 and the outer diameter of the rear guard 5 are the same. After installation, the shoulder of the guide shaft 3 is mounted. The upper groove is in the same direction as the groove 51 on the rear guard 5 and may be in the same direction as the clutch groove 200. All the grooves on the entire coding mechanism can be rotated in the same direction, and the whole coding mechanism is used as a "clutch" for higher stability.

Unlocking process:

As shown in FIG. 11, when the lock is first unlocked, a small section of the key 1 is inserted into the keyhole, and then the key 1 is rotated counterclockwise to drive the guide shaft 3 to rotate counterclockwise. When the rotation is reversed, the reset dial 34 on the guide shaft 3 gradually contacts. The reset block of each code piece, which in turn drives the code piece 2 to rotate, after one rotation of the key, all the reset blocks of the code piece are in the same position, and since the distribution position of the clutch groove and the reset block are different, the clutch groove is The position is different, as shown in the figure, the position of the first type of code piece clutch groove 211, the M type code piece clutch groove 241, and the like is different. Then, the key 1 is completely inserted into the guide shaft 3, the key 1 is rotated clockwise, and the tooth block on the key 1 is in one-to-one correspondence with the tooth groove on the code piece, and the key 1 is continuously rotated. The decoding and unlocking process is as shown above and shown in FIG. After being rotated into position, as shown in FIG. 12, all the clutch grooves form the clutch passage groove 200, and the clutch passage groove 200 faces the lower side of the clutch pin 6. During the rotation, all the clips 4 remain unchanged. The clip groove faces the clutch pin 6, and the clutch pin 6 falls into the clutch groove 200, and the clutch pin 4 is interlocked with other mechanisms to unlock. When locking, turn the key 1 counterclockwise to reset the coding mechanism.

Embodiment 2:

As shown in FIG. 13, in the present embodiment, the structure of the guide shaft 301 and the key 101 is different from that of the first embodiment. The key 101 has only one rack, and the rack has four kinds of tooth blocks of different heights, and the corresponding guide shafts. 301 also has only one strip-shaped hole, each code piece has one reset block, four step-shaped tooth slots, one of the slots of the same layer of code piece meshes with one of the tooth blocks, but each coded piece The clutch groove is different from the same position of the tooth groove. The other structure is the same as that of the first embodiment.

Embodiment 3:

As shown in FIG. 14, in the embodiment, the structure of the code piece and the key 102 is different from that of the first embodiment. Each code piece has one reset block and one slot, and the key 102 has four racks, each of which has four racks. There is only one type of tooth on the rack, but on each code piece, the clutch groove has the same position as the slot. The other structure is the same as that of the first embodiment.

In the second embodiment and the third embodiment, since the rack and the number of slots on the code piece are small, the technical method can be realized, and the amount of coded information is small. Theoretically, the value of the encoded information is infinite. However, in the physical design, factors such as the size of the structure, the amount of difference in the coding angle, and the processing performance should be considered.

Claims

The coding mechanism and the key of the clutch type lock, the clutch pin is arranged in the lock head, and the clutch pin and the unlocking mechanism are linked, wherein the coding mechanism is arranged in the lock head, and the coding mechanism comprises a plurality of code pieces, and the code piece is a ring shape. The outer edge of the ring is provided with a clutch groove, and the inner edge of the ring is provided with a protrusion protruding toward the center of the ring. The protrusion is provided with a reset block and a tooth groove, and the bumps of each code piece are the same, and the bump is the same. The positions of the opposite clutch grooves are not completely the same, and the plurality of code sheets are stacked in the axial direction, the center of the ring is coaxial, and the depth of the clutch grooves is the same;

a rack is arranged on the key in the axial direction, and a plurality of tooth blocks are arranged on the rack;

When the key insertion coding mechanism rotates, the plurality of tooth blocks on the key respectively mesh with the plurality of coding piece slots, and the code piece is rotated, so that the clutch grooves of all the coding pieces are facing the clutch pins, and the clutch pins extend into the clutch concave. After the slot and the clutch pin are actuated, the interlocking unlocking mechanism is unlocked;

On the key, or in the coding mechanism, a reset bar linked with the key is arranged, and the reverse rotation key drives the reset bar to engage with the plurality of code piece reset blocks, so that the reset blocks of all the code pieces are rotated in the same direction, and the clutch grooves are not in the same direction. The clutch pin is squeezed out of the clutch groove, and the interlocking unlocking mechanism is locked after the clutch pin action.
The encoder mechanism and key for a clutch type lock according to claim 1, wherein the coding mechanism further comprises a guide shaft, wherein the guide shaft is located in a plurality of coding pieces, the guide shaft is hollow inside, and the front end is provided with a key. The key hole is matched with the cross section, and the key is inserted into the guide shaft through the key hole. The wall of the frame of the guide shaft is provided with a strip hole, and the tooth block on the key is exposed from the strip hole, and the outer wall of the frame body is fixed with an axial reset. article.
The coding mechanism and key of the clutch type lock according to claim 2, wherein the guide shaft has a plurality of clips, the clip is in the shape of a ring, and the outer edge of the clip has a clip groove. All the clips are in the same direction and the clip groove is always facing the clutch pin, and the clutch pin can be caught in the clip groove, and the clip is spaced apart from the code piece.
The clutch mechanism and key of the clutch type lock according to claim 3, wherein the outer edge of the clip is provided with a clip protrusion, and the bump is interlocked with the unlocking mechanism.
The encoder mechanism and key for a clutch type lock according to claim 2, wherein a rear guard piece is attached to a rear end of the guide shaft.
The clutch mechanism and key of the clutch type lock according to claim 1, wherein the key has a plurality of axial racks, and each of the racks is provided with a plurality of blocks of different heights, each of which is provided. A plurality of stepped coggings are arranged on the code piece, and after the key is inserted into the coding mechanism, the tooth block and the tooth groove are matched one by one, and meshed while rotating.
The clutch mechanism and key of the clutch type lock according to claim 1, wherein the clutch groove and the flange of the clutch pin are chamfered.