TWI491788B - Disc cylinder lock structure with a security disc and a key thereof - Google Patents

Description

Disc lock structure with anti-theft piece and its key

The invention relates to a lock core structure, in particular to a disc lock core structure with an anti-theft piece.

In order to ensure the safety of the property, according to different use environments and functions, a variety of styles of locks are designed for users to purchase. In the design of the lock, the lock core structure is an important core component for controlling the lock in the lock, which relates to the anti-theft function of the lock. Therefore, in the lock structure, the lock core is a very important technology.

Among the many lock core structures, one of the lock cores belongs to the disc lock core (or the disc lock core), as disclosed in the "Disc Lock Unit" of the Republic of China Invention Patent No. I363129. However, although the above-mentioned disc cartridge lock unit can be used in various combinations by utilizing the difference in the position of the recess of the disc reel, the projections protruding from the periphery of the disc reels are placed in the cutout portion of the rotor. Therefore, even if the thief protrudes into the keyhole with an incorrect key, any of the disc reels may be rotated by about 90 degrees to the first unlock position. However, as long as one of the discs in the drum is rotated to the first unlock position, the probability that the disc lock unit is illegally unlocked is greatly increased. For example, the disc lock unit can be easily unlocked and opened as long as it needs to be combined with other tools to extend into the keyhole so that the remaining disc reels are rotated to the first unlock position. Lost the anti-theft function.

In view of this, the Republic of China Invention Patent No. I264492 discloses an anti-theft lock, which overcomes the prior art and has a disc-type lock for easy thieves. The problem of illegal unlocking. This technology is due to the fact that the outer disc, the inner disc and the driven disc assembled in the lock drum are designed in a circular shape. Therefore, if an incorrect key is inserted and attempted to be unlocked, only the outer disc and the inner disc will be caused. The disc and the driving disc are equal to the 360 degree idling in the locking cylinder, and cannot produce a situation in which any disc can be rotated 90 degrees in the prior art to the first unlocking position.

However, even if the 360-degree idling lock lock solves the problem that the traditional disc lock is easy to rotate the thief 90 degrees to the first unlock position, and then is easily unlocked illegally, there is still a defect, as long as the length is used. Sufficient tools or keys, etc., can be inserted into the rotating piece at the bottom of the lock barrel, and it is still possible to rotate the rotating piece illegally by 90 degrees to the first unlocking position, and then easily unlocked. According to this, how to design a lock with high anti-theft performance is one of the important topics for people in this field.

The invention provides a disc lock core structure, which can solve the problem that the disc lock core is easily opened illegally in the prior art, thereby greatly improving the anti-theft function.

More specifically, the present invention provides a disc lock core structure, which comprises a drum, a mast, a disc set, an anti-theft piece and a sleeve, wherein a disc group is sequentially assembled from the bottom to the top in the reel and Anti-theft film. The sleeve is sleeved on the outer side of the drum, and the drum has a cylindrical portion with an opening upward and a bottom portion, wherein the side wall of the cylindrical portion is provided with a straight groove in the axial direction and a notch is formed on the other side. A mast is arranged at the straight groove of the cylindrical portion, and the mast can be movably protruded outward from the straight groove to be locked with the sleeve, or the mast can be slipped after the correct key is inserted. To the first recess of the drum and disc group In the defined gap, the drum can be rotated and unlocked in the sleeve.

The disc group has a plurality of discs, each of which has a first key through hole, and each of the discs has a convex portion and a first concave portion on the outer peripheral surface, wherein the convex portion can be formed in the gap of the rotating sleeve The middle portion rotates and can push the cylindrical portion, and the first concave portion is provided for the partial mast to be inserted therein.

The anti-theft piece is located in the cylindrical portion, and has a second key through hole. The second side of the second key through hole has a notch segment facing each other, and the two notch segments respectively surround a notch. The two notches communicate with the second key through hole. The outer peripheral surface of the anti-theft piece has a locking convex portion, and the locking convex portion is engaged with the notch of the cylindrical portion.

The invention further provides a key for operating the disc lock core structure, the key comprises a mandrel area and a grip area, the mandrel area has an intermediate section of the connection grip area and an insertion section for inserting the key through hole . The insertion section further includes a plurality of locking teeth and a recess. Each of the locking portions corresponds to a position of each of the first recesses of the plurality of discs to push the disc. The recess corresponds to the position of the notch section on the long side of the anti-theft piece in the lock core structure, and the recess can evade the notch section and can enter the notch. In this way, when the lock core structure is rotated with the correct key, the recessed portion of the key can evade the notch section of the anti-theft piece and enter the notch, so that the key can be unlocked by rotating the lock core structure.

Therefore, compared with the prior art, the present invention provides a disc lock core structure with strong anti-theft property, which is designed to improve the difficulty of illegally opening the lock core structure. Secondly, after the lock structure of the disc of the present invention is locked, if the thief inserts the lock into the lock with an incorrect key, in addition to attempting to unlock the lock, The shape of the tooth surface of the incorrect key does not match the recess in the disc, and it is blocked by the anti-theft piece in the lock, so that the key cannot be rotated at all. In this way, the problem that the thief is rotated 90 degrees to the first unlock position and then easily unlocked illegally is not generated as in the prior art, thereby greatly increasing the difficulty of illegally opening the lock structure.

Other inventive aspects and more detailed technical and functional descriptions of the present invention are disclosed in the following description.

The first figure shows a three-dimensional exploded combination diagram of a disc lock core structure in an embodiment of the present invention. As shown in the first figure, the disc lock core structure 100 includes at least a drum 110, a mast 120, a disc set 130, an anti-theft piece 140, a compression elastic member 150, a drill-proof piece 160, and a sleeve 170.

The drum 110 has a cylindrical portion 112 with an opening facing upward and a bottom plate 114, and the bottom plate 114 is located at the bottom of the cylindrical portion 112. A side groove 115 is opened in the axial direction of the side of the side wall of the cylindrical portion 112, and a notch 117 is defined in the other side. The opposite position of the straight groove 115 is an axially extending notch 117, and the width of the straight groove 115 is It is smaller than the width of the notch 117. In general, the notch 117 is formed by a slit of a quarter of the circumference of the cylindrical portion 112. The first portion 119 of the cylindrical portion 112 has a first positioning portion 119. In this embodiment, the first positioning portion 119 is preferably a positioning protrusion. Alternatively, the first positioning portion 119 may also be a positioning hole.

The mast 120 is a cylindrical rod and is movably located in the straight groove 115 of the drum 110, and a part of the mast is movably projected to protrude from the outer peripheral surface of the cylindrical portion 112, or is convex. The inner circumferential surface of the cylindrical portion 112.

The disc set 130 is located on the bottom plate 114 of the drum 110 and includes a plurality of discs 132 stacked in the drum 110. Each of the discs 132 is an annular sheet body having a first key through hole 132a thereon. The first key through hole 132a is substantially one of the elongated through holes corresponding to the size of the correct key and is located at the middle of the disk 132. Next, each of the discs 132 has a first concave portion 132b and a convex portion 132c on the outer peripheral surface. The first recess 132b is recessed on the outer circumferential surface of the disc 152, and each of the first recesses 132b has a different position relative to the position of the first key through hole 132a for receiving the mast 120. Generally, the position of the first recess 132b on each of the discs 132 is arranged in accordance with the shape of the corresponding key. The convex portion 132c is protruded from the outer circumferential surface of the disc 132, and the convex portion 132c is rotatable in the notch 117 of the drum 110 and can be pushed against the cylindrical portion 112 to sway the drum 110 to rotate.

Moreover, the disc group 130 further includes a plurality of spacers 134 that are interleaved with each of the discs 152. The spacers 134 are substantially annular and stacked in the drum 110. Each spacer 134 has a circular perforation and the diameter of the circular perforations is greater than the length of the correct key. A second recess 134a is recessed in a periphery of each of the spacers 134 and a first engaging protrusion 134b is protruded at a corresponding position. The second recess 134a faces the straight groove 115 of the drum 110, and the first engaging protrusion 134b is caught in the notch 117 of the drum 110, so that each of the spacers 134 cannot rotate.

The anti-theft piece 140 is located in the cylindrical portion 112, and has a second key through hole 142 in the middle of the anti-theft piece 140. The second key through hole 142 is substantially an elongated through hole corresponding to the size of the correct key, and has a notch segment 144 facing each other at the middle of the two long sides, and each notch segment 144 is respectively The two notches 145 communicate with the second key through hole 142 around a notch 145. Preferably, the notch segments 144 may be curved in shape, or one of them may be curved and the other shape. More specifically, when the two notch segments 144 are all curved, they can generally form a circle, and the diameter of the virtual inscribed circle 144a is smaller than the length of the long side of the second key through hole 142. Alternatively, the notch segment 144 may also be in the shape of, for example, a U-shape (as shown in FIG. 2A) or an angular shape on both sides (as shown in FIG. 2B). It should be noted that the shape is not limited to In the present invention, the diameter of the virtual inscribed circle 144a formed by the two notch segments 144 on the two long sides is smaller than the length of the long side of the second key through hole 142. Furthermore, referring to the first figure, the outer peripheral surface of the anti-theft piece 140 has a locking protrusion 146 which is engaged with the notch 117 of the cylindrical portion 112 to restrict the rotation of the anti-theft piece 140. In addition, in this embodiment, the security sheet 140 is located at the top of the disc group 130, but is not intended to limit the present invention, that is, the security sheet 140 may also be disposed in the disc group 130, or located in the disc. At the bottom of group 130, those skilled in the art can change according to requirements. For example, when the anti-theft sheet 140 is stacked between two adjacent discs 132, the anti-theft sheet 140 can be used as a spacer. In this case, a recess must be formed on the outer peripheral surface of the anti-theft sheet 140. The mast 120 is received while in the unlocked state.

The compression elastic member 150 is a compression spring. In this embodiment, the compression elastic member 150 is a pair of compression elastic members, and each compression elastic member 150 has a spring clip 152 and a positioning portion 154. The end of the clip 152 is a raised piece for resiliently resisting the security sheet 140 and the disc set 150 located thereunder. The positioning segment 154 is a piece that extends vertically downward from the elastic segment 152, and the positioning segment The 154 further has a second positioning portion 154a that blocks the first positioning portion 119 on the cylindrical portion 112 and restricts movement of the compression elastic member 150. In this embodiment, the second positioning portion 154a may be a positioning hole, the first positioning portion 119 is plugged into the second positioning portion 154a, and the first positioning portion 119 is restricted by the inner wall of the second positioning portion 154a. , can't move. In another embodiment, the second positioning portion 154a may also be a positioning protrusion. As shown in the first figure, the compression elastic member 150 is disposed at the uppermost portion of the disc group 130, and is spaced apart from the disc group 130 by the anti-theft sheet 140. In this embodiment, the elastic piece 152 of the compression elastic member 150 is a two-half curved piece, but is not limited thereto, and may be an annular elastic body.

The drill bit 160 is a circular piece and is located above the compression elastic member 150. An outer key through hole 162 is defined in the middle of the drill-proof piece 160, and the outer key through hole 162 corresponds to the sectional shape of a key.

The sleeve 170 has a receiving chamber 172 with an opening facing downward, and the receiving chamber 172 is for receiving the drum 110. The inner side wall of the sleeve 190 has a groove 174 in the axial direction for receiving the mast 120. The top of the receiving chamber 172 has a top plate 176, and a circular key hole 178 is formed in the top plate 176. The round key hole 178 extends through the receiving chamber 172.

According to the present invention, the disc lock core structure 100 formed by assembling the components is formed in a communicating manner from the key through hole 162 outside the drill resisting piece 160 to the first key through hole 132a of the disc 132. There is an almost straight hole for inserting a correct key 200.

Secondly, by the design of the disc lock core structure, when it is applied to a lock, for example, it is applied to a locomotive lock, which can make the assembled lock The core structure is sleeved in a lock core shell, and the lock core shell is fixed in the lock body, and the lock tongue is driven by a linkage mechanism to control the lock on the lock and unlock. Since the technology of the lock core structure applied to the lock is designed to be changed according to the needs of those skilled in the art, it will not be repeated here.

Next, the key 200 will be described. Referring to the third figure, there is shown a plan view of a key for operating a disc lock core structure in an embodiment of the present invention. The key 200 is used to operate the lock and unlocker on the disc lock core structure 100, and includes a grip area 210 and a mandrel area 220. The mandrel region 220 is coupled to the grip zone 210. The mandrel region 220 has an intermediate section 230 and an insertion section 240. The intermediate section is connected to the gripping area 210, and the insertion section 240 is connected to the intermediate section 230 for insertion into a portion of the keyhole of the key structure 100. The insertion section 240 further includes a plurality of locking teeth 242 and a recess 244. Each of the latching portions 242 is respectively engaged with the first key through hole 132a of the disc 132 of the disc group 130, and each of the latching portions 242 respectively corresponds to the first recess 132b of the disc 132 of one of the discs 132. position. Therefore, when the rotating cylinder 110 is rotated using the correct key 200, the locking teeth portion 242 of the key 200 rotates each of the discs 132 at different rotation angles.

The recess 244 is mated with the notch section 144 of the security sheet 140, and the recess 244 corresponds to the location of the notch section 144. That is, the recess 244 is a recess that is recessed inwardly in the insertion section 240 of the key 200. When the key 200 rotates the drum 110, the recess 244 can evade the notch section 144 and allow the recess to enter the notch. Specifically, please refer to FIG. 4A and FIG. 4B simultaneously, which respectively show a partial perspective view of a disc lock core structure using a correct key in an embodiment of the present invention. When the correct key 200 is inserted, the insertion section 240 of the key 200 is inserted into the lock core structure 100. The key through hole includes, for example, a second key through hole 142 of the security sheet 140, a first key through hole 132a of the disk 132, and the like. Next, when the key 200 is rotated and the drum 110 is rotated at the same time, the recessed portion 244 of the key 200 will evade the notch section 144 of the security sheet 140 and pass through the notch 145. In this embodiment, since the security sheet 140 is located at the uppermost portion of the disc group 130, the recess portion 244 corresponding to the security sheet 140 is configured to be located at the top end of the insertion section 240 and connected to the intermediate section 230. It should be noted that the position of the recess 244 of the key 200 is not intended to limit the present invention, and is designed according to the position of the security sheet 140 in the lock core structure 100.

The function of the upper lock of the disc lock structure 100, the unlocking of the first section and the unlocking of the second section will be described in more detail below.

Please refer to FIG. 5 to FIG. 7 , which respectively show a disc lock in the locked state, the first unlocked state and the second unlocked state in an embodiment of the present invention. A schematic plan view of the top of the heart structure. As shown in the fifth figure, when the disc lock core structure 100 is in the locked state, the mast 120 is located in the straight groove 115 of the drum 110 and the groove 174 of the sleeve 170. That is, a part of the mast 120 protrudes from the outer peripheral surface of the cylindrical portion 112 of the drum 110, and the protruding portion of the mast 120 is restricted between the two side walls of the groove 174 of the sleeve 170. Therefore, the drum 110 cannot be rotated. Then, when the key 200 is inserted into the lock core structure 100 with the correct key, as shown in the third figure, the key 200 is sequentially passed through the key through hole 162 and the anti-theft piece 140 except the drill-proof piece 160. The two key through holes 142 and the first key through holes 132a of the disc 132. Thereafter, when the grip area 210 is held and rotated 90 degrees to the first stage unlock position, the recessed portion 244 of the key 200 will evade the notch section 144 of the security sheet 140 and pass through the notch 145. at this time, The locking portion 242 of the insertion section 240 of the key 200 is completely matched with the first key through holes 132a of the discs 132 such that the first recesses 132b of each of the discs 132 correspond to the straight slots 115 of the drum 110, As shown in the sixth figure. Thereafter, the key 200 is further rotated to the second unlocking position, and the locking portion 242 of the insertion portion 240 continues to push the disc 132 to rotate, and at the same time, the convex portion 132c of the disc 132 pushes the rotating cylinder 110. The rotating drum 110 rotates. At this time, the mast 120 originally located between the groove 174 of the sleeve 170 and the straight groove 115 of the drum 110 is pushed against, and moved to the straight groove 115 of the drum 110 and the first recess 132b of the disc 132. Among the defined gaps, as shown in the seventh figure. In this way, the drum 110 and the disc 132 can be rotated together by the key 200, and the interlocking mechanism of the bottom of the drum 110 controls the unlocking of the lock tongue of the lock.

If the key structure 100 is inserted with an incorrect key, the incorrect key will be blocked by the security sheet 140 and cannot be rotated. That is to say, when the lock core structure 100 is attempted by an incorrect key, since the recessed portion 244 corresponding to the notch portion 144 of the security sheet 140 is not disposed on the incorrect key, the tooth surface of the incorrect key is affected. The long side of the anti-theft piece 140 is blocked, and the locking protrusion 146 of the anti-theft piece 140 is inserted into the notch 117 of the cylindrical portion 112. Therefore, the incorrect key cannot be completely rotated at all, let alone the lock core structure can be tilted. Any one of the discs or rotating pieces will wait until the first unlocked position. In this way, the special design of the present invention solves the existing disc lock, whether it is a conventional disc lock that is easily rotated by 90 degrees to the first unlock position, or a 360-degree idling disc lock structure. It is easy to be opened illegally, which makes it difficult to open the lock structure illegally.

Anyway, anyone can get enough teaching from the description of the above example. It is understood that the content of the present invention is indeed different from the prior art, and has industrial applicability and is progressive. It is the invention that has indeed met the patent requirements and has filed an application in accordance with the law.

100‧‧‧ disc lock structure

110‧‧‧ reel

112‧‧‧Cylinder

114‧‧‧floor

115‧‧‧ Straight slot

116‧‧‧Block

116a‧‧‧ Sidewall

117‧‧ ‧ gap

118‧‧‧ linkage block

119‧‧‧First Positioning Department

120‧‧‧ mast

130‧‧‧ disc group

132‧‧‧ discs

132a‧‧‧First key through hole

132b‧‧‧First recess

132c‧‧‧掣 convex

134‧‧‧ spacers

134a‧‧‧Second recess

134b‧‧‧ carding convex

140‧‧‧Security film

142‧‧‧Second key through hole

144‧‧‧ gap section

145‧‧ ‧ gap

144a‧‧‧Virtual inscribed circle

146‧‧‧Cards

150‧‧‧Compressed elastic parts

152‧‧‧Bullet

154‧‧‧ positioning segment

154a‧‧‧Second Positioning Department

160‧‧‧Dangerproof drill

162‧‧‧Outer key through hole

170‧‧‧ sleeve

172‧‧‧ Receiving room

174‧‧‧ trench

176‧‧‧ top board

178‧‧‧ key perforation

200‧‧‧ key

210‧‧‧ Holding area

220‧‧‧Heart Zone

230‧‧‧ Middle section

240‧‧‧Insert paragraph

242‧‧‧The tooth lock

244‧‧‧Depression

The first figure shows a three-dimensional exploded combination diagram of a disc lock core structure in an embodiment of the present invention.

2 is a schematic plan view showing the top view of the security film in another embodiment of the present invention.

FIG. 2B is a schematic plan view showing the upper surface of the anti-theft film according to still another embodiment of the present invention.

The third figure is a schematic plan view showing a key for operating a disc lock core structure in an embodiment of the present invention.

Figure 4A is a partial perspective view showing the operation of the disc lock core structure using the correct key in an embodiment of the present invention.

Figure 4B is a partial perspective view showing the operation of the disc lock core structure using the correct key in an embodiment of the present invention.

The fifth figure shows a schematic plan view of a portion of the disc lock core structure when the disc lock core structure is in the locked state in an embodiment of the present invention.

The sixth figure shows a schematic plan view of a portion of the disc lock core structure when the disc lock core structure is unlocked in the first stage according to an embodiment of the present invention.

The seventh figure shows that in one embodiment of the present invention, when the disc lock core structure is in the unlocked state of the second section, a part of the disc lock core structure is viewed from above. intention.

100‧‧‧ disc lock structure

110‧‧‧ reel

112‧‧‧Cylinder

114‧‧‧floor

115‧‧‧ Straight slot

116‧‧‧Block

116a‧‧‧ Sidewall

117‧‧ ‧ gap

119‧‧‧First Positioning Department

120‧‧‧ mast

130‧‧‧ disc group

132‧‧‧ discs

132a‧‧‧First key through hole

132b‧‧‧First recess

132c‧‧‧掣 convex

134‧‧‧ spacers

134a‧‧‧Second recess

134b‧‧‧ carding convex

140‧‧‧Security film

142‧‧‧Second key through hole

144‧‧‧ gap section

145‧‧ ‧ gap

146‧‧‧Cards

150‧‧‧Compressed elastic parts

152‧‧‧Bullet

154‧‧‧ positioning segment

154a‧‧‧Second Positioning Department

160‧‧‧Dangerproof drill

162‧‧‧Outer key through hole

170‧‧‧ sleeve

172‧‧‧ Receiving room

174‧‧‧ trench

176‧‧‧ top board

178‧‧‧ key perforation

200‧‧‧ key

Claims (10)

A disc lock core structure comprising: a rotating drum having a cylindrical portion with an opening facing upward, the side wall of the cylindrical portion having a straight groove and a notch in an axial direction; a mast movablely located at the rotating cylinder In the straight groove, a part of the mast can protrude outside the straight slot; a disc group having a plurality of discs on the bottom plate of the rotating cylinder and sequentially stacked in the cylindrical portion Each of the discs has a first key through hole, and each of the discs has a convex portion and a first concave portion on the outer peripheral surface, and the convex portion can rotate in the notch of the rotating drum and can push the a cylindrical portion, the first concave portion is for a part of the mast to be inserted therein; an anti-theft piece is located in the cylindrical portion, the anti-theft piece has a second key through hole, and the second key through hole has two long sides The middle portion has a notch segment facing each other, and the two notch segments respectively surround a notch, and a distance between any one of the two notch segments is greater than a distance between the two long sides, and the two notch segments are connected to the first a two-key through hole, and the outer peripheral surface of the anti-theft piece has a locking convex portion, and the locking convex portion is stuck in The cutout of the cylindrical portion; and a sleeve having an opening facing down one receiving chamber for receiving said rotor and having an axial groove of the inner sleeve for receiving the latch rod. For example, the anti-theft lock structure described in claim 1 of the patent scope, Wherein any of the notched sections on the two long sides is curved. The disc lock core structure according to claim 1, wherein each of the notch segments of the anti-theft piece has an arc shape. The disc lock core structure of claim 1, wherein the anti-theft patch is located above the disc set. The disc lock core structure according to claim 1, wherein the anti-theft piece is located between two adjacent ones of the discs, and the anti-theft piece has a concave portion on an outer peripheral surface thereof. The disc lock core structure according to claim 1, further comprising an anti-drilling piece and a compression elastic piece located in the rotating sleeve, the anti-drilling piece is located between the sleeve and the disc set, and The compression elastic member is located between the drill bit and the disc set. The disk lock core structure of claim 6, wherein the compression elastic member has a projectile segment and a positioning segment, the elastic segment elastically resisting the disc group located thereunder, the positioning segment The projectile extends and is fixed to the cylindrical portion of the drum. The disc lock core structure of claim 7, wherein the positioning section has a first positioning portion, the cylindrical portion has a second positioning portion, and the second positioning portion blocks the first positioning portion and The compression elastic member is restricted from moving. A key for cooperation with the disc lock core structure of claim 1, the key comprising a mandrel area and a grip area, the mandrel area having a connection An intermediate section of the holding area and an insertion section for inserting the key through holes, wherein the insertion section further comprises: a plurality of locking teeth portions, each of the locking tooth portions respectively for pushing one of the discs And a recessed portion corresponding to the notch section at the middle of the second long side of the second key through hole of the anti-theft piece, the recessed portion enables the insertion section to evade the notch section and can enter the notch with respect to the anti-theft The piece rotates. The key of claim 9, wherein the recess is located at a junction of the insertion section and the intermediate section.