TWI841445B - Memory Number Lock - Google Patents

Abstract

The present invention provides a memory number lock, which is mainly composed of a lock base, a number-changing knob, a number-changing gear body, a number character wheel set, a spring, a lock bolt and a top cover. The number character wheel set is composed of several character wheels, several buckle bushings and several indicator plates. Each buckle bushing is respectively arranged in each character wheel. A large diameter through hole and a small diameter through hole are arranged in the buckle bushing. A notch is arranged on the small diameter through hole. There are ten kinds of buckle bushings. The outer wall surfaces of the ten kinds of buckle bushings correspond to A corresponding groove is provided at each of the ten numbers (0-9) on the character wheel, so that the notches of the ten kinds of lock buckle bushings and the corresponding grooves are the corresponding positions of the ten numbers on the character wheel. An inlay is convexly provided in the through hole in the middle of each indicator plate to be embedded in the corresponding groove of each lock buckle bushing, and an indicating convex piece is convexly provided on the outer peripheral wall surface of each indicator plate at a position corresponding to the inlay. In this way, each number lock is formed by a combination of different lock buckle bushings to form an internal code, and the original password set for the number lock can be retrieved by the internal code.

Description

Memory Number Lock

The present invention relates to a memory number lock, and in particular to a number lock structure that can retrieve the originally set unlocking password.

According to the press release, a number lock is a combination lock commonly used on door locks, bicycle locks, suitcases, safes, etc., which allows the lock to be unlocked without a key, thus avoiding the trouble caused by the loss of the key when unlocking the lock with the traditional key. However, general number locks do not have a mechanism for users to retrieve the correct password. When the user forgets the previously set password, he must blindly try the password based on his impression, or directly destroy the number lock, but in this way the lock cannot be used again. Alternatively, a professional locksmith is asked to crack the password of the lock so that the lock can be used normally. However, this method is not only time-consuming and labor-intensive, but the user often needs to pay extra fees, thus causing trouble in use.

A known number lock generally comprises a lock shell and a number wheel set, wherein the number wheel set is arranged in the lock shell, and the number wheel set is composed of a bolt, a plurality of buckle sleeves and a plurality of letter wheels. The buckle sleeve is sleeved on the bolt and can limit the extension and contraction of the bolt, and a notch is provided in the middle through-hole of the buckle sleeve for the projection on the bolt to pass through, and the letter wheel is sleeved on the buckle sleeve and can rotate with the buckle sleeve. When the letter wheel is rotated, the buckle sleeve can rotate relative to the bolt. When each letter wheel on the number lock is rotated to the set password, the notch on each buckle sleeve will be opened. When the lock sleeve and the bolt are aligned in a row, the axial limit between the lock sleeve and the bolt can be released, so that the protrusion of the bolt can pass through the notch on the lock sleeve and slide axially in the lock sleeve, thereby unlocking the bolt. However, in order to facilitate the assembly of each lock sleeve and each number wheel, the known number wheel assembly will be provided with corresponding grooves on the outer wall of each lock sleeve as a mark to facilitate the assembly of the assembler. Moreover, it is known that the notch and groove of each lock sleeve are set at the same position. Although it is convenient for manufacturing and assembly, it is easy to be cracked. The cracking method is shown in the video on the Internet (how to pick a realtor lock box: https://www.youtube.com/watch?v=JM44uRI3rLo), use a thin plate probing tool to extend into the gap between the letter wheel and the lock shell, so that the end of the probing tool is against the outer circumference of the buckle bushing, and then feel whether the probing tool sinks when the letter wheel is rotated. When the probing tool sinks, it can be inferred that the place is the groove of the buckle bushing, and then probe the next one one by one according to this principle. The grooves of the buckle sleeves are aligned, and the notches of all the buckle sleeves are aligned. Then all the letter wheels drive the buckle sleeves to rotate one by one until the notches of each buckle sleeve are aligned with the protrusions on the bolt. The protrusions of the bolt can pass through the notches on the buckle sleeve and move axially in the buckle sleeve, thereby unlocking the bolt. The video is published on the Internet, so most number locks can be easily cracked.

The main purpose of the present invention is to provide a memory number lock that can effectively solve the shortcomings of the known number lock when in use.

The memory number lock of the present invention comprises: a lock base, the lock base is provided with a receiving groove, one end of the lock base is provided with a groove, a first protrusion is provided in the receiving groove of the lock base at a position corresponding to the groove, a first through hole and two insertion grooves are provided on the inner wall surface of the groove, the first through hole and the two insertion grooves are connected to the receiving groove, the lock base is provided with a groove connected to the first through hole, the receiving groove of the lock base A second protrusion is provided inwardly at the position corresponding to the first protrusion at the other end, a second through hole is provided in the second protrusion, and a notch is provided on the second through hole; a number-changing knob is provided in the groove of the lock seat, a protrusion is provided on the outer end surface of the number-changing knob, a notch is provided on the protrusion, a limiting convex column is provided on the outer end surface of the number-changing knob, and two guide notches are provided on the other end of the number-changing knob. One side of the number-changing block is set as an arc section; a number-changing block body is sleeved on the first protrusion of the lock seat, the number-changing block body is provided with a through hole, and one end of the number-changing block body is provided with two guide protrusions opposite to each other, the two guide protrusions are respectively inserted into the two insertion grooves of the lock seat and located in the two guide grooves of the number-changing knob, the opposite side of the two guide protrusions is set as an arc surface, and a positioning groove is provided on the wall surface of the number-changing block body opposite to each other, wherein The positioning groove is aligned with the groove of the lock base; a number wheel set is arranged in the receiving groove of the lock base, and the number wheel set is composed of a plurality of wheels, a plurality of lock bushings and a plurality of indicator plates. The outer wall of each wheel is surrounded by ten numbers (0-9), and one end of the inner wall of each wheel is surrounded by a plurality of positioning slots. The other end of each wheel is provided with a groove, and a through hole is provided in the middle of each wheel. Each of the lock sleeves is disposed in each of the character wheels. The outer wall of the lock sleeve is provided with a large diameter wall and a small diameter wall. The small diameter wall is penetrated through the through hole of the character wheel. The lock sleeve is provided with a large diameter through hole and a small diameter through hole. A notch is provided on the small diameter through hole. The lock sleeve is manufactured in ten types. The outer wall surfaces of the ten types of lock sleeves correspond to the ten (0~9) on the character wheel. A corresponding groove is provided at the position of each digit, so that the notches of the ten kinds of lock bushings and the corresponding grooves are the corresponding positions of the ten digits on the character wheel. A plurality of positioning protrusions are relatively provided on the small diameter wall surface of the lock bushing to be clamped in the positioning clamping groove of the character wheel. Each of the indicator plates is respectively provided on one side of each of the character wheels, and a part of each of the indicator plates is provided in the groove of each of the character wheels. A through hole is provided in the middle of each of the indicator plates. An inlay is convexly provided in the through hole of the indicator plate, and the inlay is provided to be embedded in the corresponding groove of the lock bushing. An indicating convex piece is convexly provided on the outer peripheral wall surface of each indicator plate at a position corresponding to the inlay; a spring is sleeved on the second convex body of the lock seat; a lock bolt is penetrated in the number-changing gear body and the number character wheel set, and a push block is convexly provided on the lock bolt, and a limiting convex strip is provided on one side of the push block. There are several cutting grooves; an upper cover is set on the lock base, and the top surface of the upper cover is provided with a sliding groove for the push block of the lock bolt to pass through, and the top surface of the upper cover is provided with a through hole corresponding to each position of the number wheel of the number wheel set, and one end surface of the upper cover is provided with a through hole, and the through hole of the upper cover is provided for the convex body of the number-changing knob to pass through, and an arc groove is provided on the inner wall surface of the upper cover, and the arc groove is provided for the limiting convex column of the number-changing knob to be set.

The memory number lock of the present invention has several equidistantly arranged protrusions in the receiving groove of the lock base, and a limiting groove is formed between the protrusions to locate the position of each character wheel.

The memory number lock of the present invention has a positioning groove at the bottom of the lock base, and a positioning inlay is provided on the inner wall surface of the upper cover corresponding to the positioning groove of the lock base.

The memory number lock of the present invention, wherein the corresponding grooves of the ten kinds of buckle sleeves are respectively: the corresponding groove of the first buckle sleeve corresponds to the position of the number (1) on the character wheel, the corresponding groove of the second buckle sleeve corresponds to the position of the number (2) on the character wheel, the corresponding groove of the third buckle sleeve corresponds to the position of the number (3) on the character wheel, the corresponding groove of the fourth buckle sleeve corresponds to the position of the number (4) on the character wheel, the corresponding groove of the fifth buckle sleeve corresponds to the position of the number (5) on the character wheel, and the corresponding groove of the fifth buckle sleeve corresponds to the position of the number (6) on the character wheel. The corresponding groove of the sixth buckle sleeve corresponds to the position of the number (5) on the character wheel, the corresponding groove of the seventh buckle sleeve corresponds to the position of the number (7) on the character wheel, the corresponding groove of the eighth buckle sleeve corresponds to the position of the number (8) on the character wheel, the corresponding groove of the ninth buckle sleeve corresponds to the position of the number (9) on the character wheel, and the corresponding groove of the tenth buckle sleeve corresponds to the position of the number (0) on the character wheel.

The memory number lock of the present invention, wherein the corresponding groove of the buckle sleeve is arranged on the small diameter wall surface of the buckle sleeve.

The memory number lock of the present invention, wherein the corresponding groove of the buckle sleeve is arranged on the large diameter wall surface of the buckle sleeve.

The memory number lock of the present invention has corresponding marks between each through hole on the top surface of the upper cover.

The memory number lock of the present invention has a lock number on the upper cover.

The advantages of the memory number lock of the present invention are: by making ten kinds of different corresponding positions of the notch and the corresponding groove of the buckle sleeve, each number lock has an internal code. Even if the thief peeks into the corresponding groove on the buckle sleeve of the number lock, he still cannot guess the position of the notch and cannot unlock it, which can effectively achieve the anti-theft effect. In addition, each number lock has its own internal code, and its unlocking password can be retrieved through the internal code, which can ensure the safety of the lock.

1: Lock seat

10: Storage tank

11: Bump

110: Limiting slot

12: Groove

13: The first convex body

14: First piercing

15: Plug-in slot

16: Grooving

17: Second convex body

170: Second piercing

171: Missing slot

18: Positioning groove

21: Change number knob

210: convex body

211: Grooving

212: Limiting boss

213: Guide groove

214: Arc section

22: Change file number

220:Through hole

221: Guide tab

222:Curved surface

223: Positioning groove

3: Word wheel

30: Numbers

31: Positioning slot

32: Groove

33:Through hole

4: Buckle sleeve

400: Large diameter wall

401: Small diameter wall

402: Large diameter perforation

403: Small diameter perforation

404: Gap

405: Corresponding slot

406: Positioning convex body

41, 41’: First buckle sleeve

42, 42’: Second buckle sleeve

43, 43’: Third buckle sleeve

44, 44’: Fourth buckle sleeve

45, 45’: Fifth buckle sleeve

46, 46’: Sixth buckle sleeve

47, 47’: Seventh buckle sleeve

48, 48’: The eighth buckle sleeve

49, 49’: Ninth buckle sleeve

40, 40’: Tenth buckle sleeve

5: Indicator board

50:Piercing

51: Inlay

52: Indicator tab

6: Spring

7: Lock bolt

70: Push block

71: Limiting convex strip

72: Grooving

8: Upper cover

80: Chute

81:Through hole

82: Corresponding mark

83:Piercing

84: Arc groove

85: Positioning inlay

86: Lock number

The first figure shows a three-dimensional exploded view of an embodiment of the present invention.

The second figure shows a three-dimensional exploded view of another angle of the embodiment of the present invention.

The third figure shows a three-dimensional diagram of the buckle sleeve of the embodiment of the present invention.

The fourth figure shows a three-dimensional diagram of another buckle sleeve of the embodiment of the present invention.

The fifth figure shows a three-dimensional combination diagram of an embodiment of the present invention.

The sixth figure shows a cross-sectional view of the combination of embodiments of the present invention.

Figure 7 shows a cross-sectional schematic diagram of an embodiment of the present invention from a top view.

Figure 8 shows a schematic diagram of the cross section of the A-A section line of Figure 7.

Figure 9 shows a schematic diagram of the cross section of the B-B section line of Figure 7.

Figure 10 shows a schematic diagram of the push-lock bolt of the embodiment of the present invention.

Figure 11 is a cross-sectional diagram of the embodiment of the present invention when the rotating character wheel drives the lock sleeve to lock.

Figure 12 shows a three-dimensional schematic diagram of the interior of the lock of the rotary knob for changing the number according to the embodiment of the present invention.

Figure 13 shows a schematic diagram of rotating the number-changing knob and pushing the buckle sleeve to disengage the number wheel buckle according to the embodiment of the present invention.

Figure 14 shows a three-dimensional schematic diagram of the interior of the embodiment of the present invention, where the rotating letter wheel drives the indicating protrusions of the indicating plate to rotate upward and align with each other.

Figure 15 shows a cross-sectional diagram of each indicator plate of the embodiment of the present invention aligned upward.

Figure 16 shows a schematic diagram of the assembled cross section of the seventh buckle sleeve in Figure 14.

Figure 17 shows a cross-sectional diagram of Figure 16 showing how the character wheel is rotated to drive the lock buckle sleeve so that its notch is aligned with the limiting ridge of the lock bolt to retrieve the original password.

Figure 18 shows a schematic diagram of the assembled cross section of the fifth buckle sleeve in Figure 14.

Figure 19 shows a schematic diagram of the assembled cross section of the ninth buckle sleeve in Figure 14.

Figure 20 shows a schematic diagram of the assembled cross section of the third buckle sleeve in Figure 14.

The technical means adopted by the present invention to achieve the above-mentioned purpose and effect are given below with preferred feasible embodiments and are described in detail with reference to the drawings: The embodiments of the present invention are shown in the first to fourth figures. The memory number lock mainly includes: a lock base 1, the lock base 1 is provided with a receiving groove 10, and a plurality of convex blocks 11 are provided in the receiving groove 10 at equal intervals. The convex blocks 11 form a limited groove 110 between the convex blocks 11. One end of the lock base 1 A groove 12 is provided, and a first protrusion 13 is provided in the receiving groove 10 of the lock seat 1 at a position corresponding to the groove 12. A first through hole 14 and two insertion grooves 15 are provided on the inner wall surface of the groove 12. The first through hole 14 and the two insertion grooves 15 are connected to the receiving groove 10. A groove 16 is provided on the lock seat 1 and connected to the first through hole 14. The other end of the receiving groove 10 of the lock seat 1 is provided inwardly corresponding to the position of the first protrusion 13. A second protrusion 17 is provided with a second through hole 170 in the second protrusion 17, and a notch 171 is provided on the second through hole 170. A positioning groove 18 is provided at the bottom of the lock base 1; a number-changing knob 21 is provided in the groove 12 of the lock base 1, and a protrusion 210 is provided on the outer end surface of the number-changing knob 21, and a notch 211 is provided on the protrusion 210. A limiting convex column 212 is also provided on the outer end surface of the number-changing knob 21. The number-changing knob 21 1 is provided with two guide grooves 213 on the other end thereof, and one side of the two guide grooves 213 is provided with an arc section 214; a number-changing gear body 22 is provided in the receiving groove 10 of the lock seat 1 and sleeved on the first protrusion 13, the number-changing gear body 22 is provided with a through hole 220, and one end of the number-changing gear body 22 is provided with two guide protrusions 221 on the other end thereof, and the two guide protrusions 221 are respectively inserted in the two insertion grooves 15 of the lock seat 1 and provided on the The two guide grooves 213 of the number-changing knob 21 are provided with an arc surface 222 on the opposite side of the two guide protrusions 221. A positioning groove 223 is provided on the wall surface of the number-changing body 22. One of the positioning grooves 223 is aligned with the groove 16 of the lock base 1. A number wheel set is provided in the receiving groove 10 of the lock base 1. The number wheel set is composed of a number wheel 3, a plurality of lock bushings 4 and a plurality of indicator plates 5. Each of the number wheels 3 is provided with a plurality of lock bushings 4 and an indicator plate 5. Ten numbers (0-9) 30 are arranged on the outer wall surface, and a plurality of positioning slots 31 are arranged on one end of the inner wall surface of each character wheel 3. A groove 32 is arranged on the other end of each character wheel 3. A through hole 33 is arranged in the middle of each character wheel 3. Each buckle bushing 4 is arranged in each character wheel 3. The outer wall surface of the buckle bushing 4 is provided with a large diameter wall surface 400 and a small diameter wall surface 401. The small diameter wall surface 401 is penetrated through the character wheel. 3, the buckle sleeve 4 is provided with a large diameter through hole 402 and a small diameter through hole 403, and a notch 404 is provided on the small diameter through hole 403. The buckle sleeve 4 can be manufactured in ten kinds (as shown in the third figure), and the small diameter wall surface 401 of the ten kinds of buckle sleeves 4 is provided with a corresponding groove 405 at the position corresponding to the ten numbers 30 (0-9) on the character wheel 3, so that the notch 404 on the ten kinds of buckle sleeves 4 and the corresponding The corresponding grooves 405 are the corresponding positions of the ten numbers 30 on the character wheel 3 (as shown in the third and fourth figures). The small diameter wall surface 401 of the buckle bushing 4 is relatively provided with a plurality of positioning protrusions 406 for being locked in the positioning slots 31 of the character wheel 3. The positions of the corresponding grooves 405 of the ten buckle bushings 4 are respectively as follows: the corresponding groove 405 of the first buckle bushing 41 corresponds to the position of the number (1) on the character wheel 3, the corresponding groove 405 of the second buckle bushing 42 corresponds to the position of the number (2) on the character wheel 3, and the corresponding groove 405 of the second buckle bushing 43 corresponds to the position of the number (3) on the character wheel 3. 05 corresponds to the position of the number (2) on the character wheel 3, the corresponding groove 405 of the third lock sleeve 43 corresponds to the position of the number (3) on the character wheel 3, the corresponding groove 405 of the fourth lock sleeve 44 corresponds to the position of the number (4) on the character wheel 3, the corresponding groove 405 of the fifth lock sleeve 45 corresponds to the position of the number (5) on the character wheel 3, and the corresponding groove 405 of the sixth lock sleeve 46 corresponds to the number (6) on the character wheel 3. The corresponding groove 405 of the seventh lock sleeve 47 corresponds to the position of the number (7) on the character wheel 3, the corresponding groove 405 of the eighth lock sleeve 48 corresponds to the position of the number (8) on the character wheel 3, the corresponding groove 405 of the ninth lock sleeve 49 corresponds to the position of the number (9) on the character wheel 3, the corresponding groove 405 of the tenth lock sleeve 40 corresponds to the position of the number (0) on the character wheel 3, and the corresponding groove 405 of the lock sleeve 40 corresponds to the position of the number (0) on the character wheel 3. It can also be arranged on the large diameter wall surface 400 of the lock bushing 4' (as shown in the fourth figure, which is another embodiment of the lock bushing). As shown in the third figure, the corresponding groove 405 of the first lock bushing 41' corresponds to the position of the number (1) on the character wheel 3, the corresponding groove 405 of the second lock bushing 42' corresponds to the position of the number (2) on the character wheel 3, and the corresponding groove 405 of the third lock bushing 43' corresponds to the position of the number (4) on the character wheel 3. The corresponding groove 405 of the fourth lock sleeve 44' corresponds to the position of the number (4) on the character wheel 3, the corresponding groove 405 of the fifth lock sleeve 45' corresponds to the position of the number (5) on the character wheel 3, the corresponding groove 405 of the sixth lock sleeve 46' corresponds to the position of the number (6) on the character wheel 3, the corresponding groove 405 of the seventh lock sleeve 47' corresponds to the position of the number (7) on the character wheel 3, the eighth lock sleeve 48' corresponds to the position of the number (9) on the character wheel 3, and the eighth lock sleeve 49' corresponds to the position of the number (10) on the character wheel 3. The corresponding groove 405 of the sleeve 48' corresponds to the position of the number (8) on the character wheel 3, the corresponding groove 405 of the ninth lock sleeve 49' corresponds to the position of the number (9) on the character wheel 3, and the corresponding groove 405 of the tenth lock sleeve 40' corresponds to the position of the number (0) on the character wheel 3. Each of the indicator plates 5 is respectively arranged on one side of each character wheel 3, and a part of each of the indicator plates 5 is arranged in the groove 32 of each character wheel 3. A through hole 50 is provided between the indicator plates 5, and an inlay 51 is convexly provided in the through hole 50 of each indicator plate 5. The inlay 51 is provided to be embedded in the corresponding groove 405 of each buckle bushing 4, and an indicating convex piece 52 is convexly provided on the outer peripheral wall surface of each indicator plate 5 at a position corresponding to the inlay 51; a spring 6 is provided in the receiving groove 10 of the lock base 1 and sleeved on the second convex body 17 of the lock base 1; a lock bolt 7 is penetrated through the number change gear body 22 and the number character wheel In the assembly, a push block 70 is convexly provided on the lock bolt 7, and a limiting convex strip 71 is provided on one side of the push block 70, and a number cutting groove 72 is provided on the limiting convex strip 71; an upper cover 8 is provided on the lock base 1, and a slide groove 80 is provided on the top surface of the upper cover 8 for the push block 70 of the lock bolt 7 to pass through, and a through hole 81 is provided on the top surface of the upper cover 8 corresponding to each position of the number wheel 3 of the number wheel assembly, and corresponding marks 82 are provided between each of the through holes 81 on the top surface of the upper cover 8 , a through hole 83 is provided on one end surface of the upper cover 8, and the through hole 83 of the upper cover 8 is provided for the protrusion 210 of the number-changing knob 21 to pass through, and an arc groove 84 is provided on the inner wall surface of the upper cover 8, and the arc groove 84 is provided for the limiting protrusion 212 of the number-changing knob 21 to be set in, and a positioning inlay 85 is provided on the inner wall surface of the upper cover 8 corresponding to the position of the positioning groove 18 of the lock base 1, and a lock number 86 is provided on the upper cover 8, so that it is a memory number lock structure.

When assembling the embodiment of the present invention, please refer to the first to ninth figures. Each memory number lock is provided with a lock number 86 on the upper cover 8, and each lock number 86 is provided with an "internal code". The "internal code" is set by the manufacturer during assembly. Three or four buckle sleeves 4 can be selected. In this embodiment, there are four buckle sleeves 4. The selected four buckle sleeves 4 are the "internal codes" of the lock, and the selected four buckle sleeves 4 are the "internal codes" of the lock. The positions of the corresponding grooves 405 can be different or the same. For example, as shown in the first and second figures of this embodiment, the seventh buckle sleeve 47, the fifth buckle sleeve 45, the ninth buckle sleeve 49 and the third buckle sleeve 43 in the third figure are selected. The positions of the corresponding grooves 405 of the four buckle sleeves 4 are the "internal codes" of the lock (from left to right, they are "7, 5, 9, 3" respectively). The four buckle sleeves 4 are respectively assembled in the four character wheels 3, and each lock is The notch 404 of the buckle sleeve 4 corresponds to the topmost number 30 on each character wheel 3 (the password number set in this embodiment is at the position of "0", and the number on the character wheel 3 is the "external code". The external code of this embodiment is "0, 0, 0, 0", which is the "unlocking code" of the number lock), and the small diameter wall surface 401 of each buckle sleeve 4 extends through the through hole 33 of each character wheel 3, and the positioning protrusion 406 on each buckle sleeve 4 is embedded in In the positioning slot 31 of each character wheel 3 (as shown in the seventh and ninth figures), four indicator plates 5 are respectively arranged on one side surface of the four character wheels 3, and the small diameter wall surface 401 of the buckle bushing 4 extends through the through hole 50 of the indicator plate 5, and the inlay 51 of each indicator plate 5 is embedded in the corresponding groove 405 of each buckle bushing 4. (If the buckle bushing 4' of another embodiment of the fourth figure is assembled, each indicator plate 5 is assembled on the other side surface of each character wheel 3, The large diameter wall surface 400 of the buckle sleeve 4' is extended through the through hole 50 of the indicator plate 5, and the inlay 51 of each indicator plate 5 is embedded in the corresponding groove 405 of each buckle sleeve 4', and then the number-changing gear body 22 is set in front of the leftmost buckle sleeve 4, and the lock bolt 7 is extended from the through hole 220 of the number-changing gear body 22 into the large diameter through hole 402 and the small diameter through hole 403 of each buckle sleeve 4, and the limiting convex strip 71 on the lock bolt 7 corresponds to In the notch 404 of each lock sleeve 4, one end of the spring 6 is placed against the lock sleeve 4 at the far right end, and then the assembled lock bolt 7, the number change gear body 22 and the number wheel assembly and the spring 6 are placed in the receiving groove 10 of the lock base 1, and the other end of the spring 6 is sleeved on the second protrusion 17 of the lock base 1, and the left end of the lock bolt 7 is inserted into the first through hole 14 of the lock base 1, and the push block 70 of the lock bolt 7 protrudes from the cut groove 16 of the lock base 1 The right end of the lock bolt 7 is inserted into the second through hole 170 of the lock base 1, and the two guide protrusions 221 of the number-changing gear body 22 are respectively inserted into the two insertion grooves 15 of the lock base 1. The lower ends of the letter wheels 3 are respectively located in the respective limit grooves 110 of the lock base 1. The number-changing knob 21 is assembled in the groove 12 of the lock base 1, and the two guide protrusions 221 of the number-changing gear body 22 are respectively located in the guide grooves 213 of the number-changing knob 21. Then, the upper cover 8 is closed. The cover is arranged on the lock base 1, so that the positioning inlay 85 of the upper cover 8 is embedded in the positioning inlay groove 18 of the lock base 1, and the protrusion 210 of the number-changing knob 21 corresponds to the through hole 83 of the upper cover 8, and the limiting protrusion 212 of the number-changing knob 21 is arranged in the arc groove 84 of the upper cover 8, and the push block 70 of the lock bolt 7 protrudes from the slide groove 80 of the upper cover 8, and the upper end of each character wheel 3 protrudes from the through hole 81 of the upper cover 8, so that the overall assembly can be completed.

When the present invention is used, please refer to the fifth to eleventh figures, and the number lock assembly of the present invention is installed on the object to be locked, such as a door lock, a bicycle lock, a suitcase, a safe, etc. When locking, only the push block 70 of the lock bolt 7 needs to be pushed to move (as shown in the tenth figure), and one end of the lock bolt 7 protrudes out of the second through hole 170 of the lock base 1, and the limiting convex strip 71 of the lock bolt 7 is separated from the notch 404 of each buckle bushing 4 and is no longer restricted by each buckle bushing 4, then each character wheel 3 can be rotated to generate random numbers, and each character wheel 3 drives the buckle bushing 4 to rotate, and the buckle bushing 4 also drives the indicator plate 5 to rotate together, so that the notch 404 of each buckle bushing 4 rotates (as shown in the tenth figure). As shown in the eleventh figure), the locking bolt 7 is no longer aligned with the limiting convex strip 71, and the locking bolt 7 is locked and not retracted. In this way, the object to be locked can be locked and the locking action is completed; when the lock is to be unlocked, only the number wheels 3 need to be rotated so that the number 30 on each number wheel 3 is the password set for the lock (the unlocking password in this embodiment is "0, 0, 0, 0"), and the notches 404 of each lock buckle sleeve 4 are aligned with each other again, and the notches 404 are aligned with the limiting convex strip 71 of the locking bolt 7. The locking bolt 7 is no longer restricted by the lock buckle sleeve 4, and can be axially retracted to form an unlocked state (as shown in the sixth figure), so that the unlocking action can be completed.

When changing the password in the embodiment of the present invention, please refer to Figures 12 and 13. You only need to insert a tool into the groove 211 on the protrusion 210 of the number-changing knob 21, turn the number-changing knob 21, and the limiting protrusion 212 on the number-changing knob 21 will rotate in the arc groove 84 of the upper cover 8, and the arc surface 222 of the two guide protrusions 221 of the number-changing body 22 will be moved. The number-changing knob 21 is rotated and moved rightward along the arc section 214 of the number-changing knob 21. The number-changing gear body 22 pushes the lock sleeves 4 and moves rightward, pushing the spring 6 to be in an elastically compressed state. The positioning protrusions 406 of the lock sleeves 4 are separated from the positioning slots 31 of the character wheels 3 (as shown in FIG. 13), so that the character wheels 3 are not Then, it is restricted by the lock bolt 7 and the lock buckle sleeve 4 to rotate, and the desired password of the lock can be freely set. After each character wheel 3 rotates to the desired password, the number-changing knob 21 is turned back to its original position with a tool, so that the number-changing gear body 22 is no longer blocked by the arc section 214 of the number-changing knob 21, and the spring 6 is elastically restored (as shown in the sixth figure), pushing each lock buckle sleeve 4 and the number-changing gear body 22 axially back to the original position, and the positioning protrusion 406 of each lock buckle sleeve 4 is again clamped in the positioning slot 31 of each character wheel 3, and the guide protrusion 221 of the number-changing gear body 22 is again located in the guide slot 213 of the number-changing knob 21, so that the number-changing setting of the memory number lock can be completed.

Each memory lock of the present invention is provided with an "internal code". The user can save or record the "internal code" for future use. Consumers can also log in their personal information and the lock number 86 online. If they forget their password, they can call the manufacturer or log in online to check the "internal code" of the memory lock. Even if the user changes the password, they can retrieve the original password by remembering the "internal code" without having to ask a professional to open the lock or destroy the lock. The lock can achieve the purpose of convenient unlocking and protecting the number lock; if the user forgets the password and wants to retrieve the password of the lock, please refer to the fourteenth to twentieth figures, just turn the character wheels 3 of the memory number lock, so that each character wheel 3 drives each buckle sleeve 47, 45, 49, 43 to rotate, and links each indicator plate 5 to rotate, and turn the indicator protrusion 52 of each indicator plate 5 corresponding to each character wheel 3 to the top (as shown in the fourteenth, fifteenth and sixteenth figures). ), so that each indicating convex piece 52 is aligned with the corresponding mark 82 of the upper cover 8. At this time, the number 30 on each character wheel 3 is not the set password. Because the corresponding positions of the notch 404 and the corresponding groove 405 of each buckle sleeve 4 are different, even if the thief finds the corresponding groove 405 of the buckle sleeve 4, he still cannot know which position the notch 404 of the buckle sleeve 4 corresponds to. In this way, the user only needs to obtain the "internal code" of the memory number lock. After aligning the indicating convex pieces 52 of each indicating plate 5 with each other, the password can be retrieved by sequentially rotating each character wheel 3 to the corresponding position according to the "internal code" of the memory number lock. For example, if the "internal code" of the memory number lock is "7, 5, 9, 3", the leftmost character wheel 3 is turned upward (counterclockwise) seven times (as shown in Figures 16 and 17), and the notch 404 of the buckle sleeve 47 can be rotated to the position aligned with the limiting convex strip 71 of the lock bolt 7. , the second left character wheel 3 is turned upward five times (as shown in FIG. 18), the third left character wheel 3 is turned upward nine times (as shown in FIG. 19), and the rightmost character wheel 3 is turned upward three times (as shown in FIG. 20), so that the notches 404 of the buckle bushings 47, 45, 49, 43 can be aligned with each other to achieve the purpose of retrieving the unlocking password. It can also be turned in the opposite direction, and the leftmost character wheel 3 can be turned downward (clockwise) three times. , and so on, turn the second left character wheel 3 downward five times, turn the third left character wheel 3 downward once, and turn the rightmost character wheel 3 downward seven times, and turn each character wheel 3 downward to the corresponding number of times in sequence, so that the notches 404 of each lock sleeve 47, 45, 49, 43 can be aligned. Alternatively, the corresponding number 30 on each indicator plate 5 after alignment and the sum of the corresponding "internal code" can be used to take the unit digit, that is, is the correct unlocking password. For example, if the number 30 on the character wheel 3 is (3), the internal code is (7), and the total is "10", take the unit digit, the correct password for the character wheel 3 is "0", and turn the number 30 on the character wheel 3 to (0). Or if the number 30 on the character wheel 3 is (8), the internal code is (7), and the total is "15", take the unit digit, the correct password for the character wheel 3 is "5", and turn the number 30 on the character wheel 3 to (5). The original set password can be retrieved, and so on. In this way, thieves cannot guess the "internal code" of the memory password lock, which can effectively prevent thieves from unlocking the lock by peeping at the corresponding slot 405 position of the buckle sleeve 4. The memory password lock structure of the present invention, even if the thief peeks into the corresponding slot 405 of the buckle sleeve 4, it is difficult to guess the unlocking password unless the "internal code" of the memory number lock is obtained, which has the effect of truly preventing peeping to unlock and retrieve the password.

In summary, the present invention has indeed achieved the expected purpose and effect, and is more ideal and practical for those who are familiar with it. However, the above embodiments are only specific descriptions of the preferred embodiments of the present invention, and the embodiments are not used to limit the scope of the patent application of the present invention. All other equivalent changes and modifications that are completed under the technical means disclosed by the present invention should be included in the scope of the patent application covered by the present invention.

1: Lock seat

10: Storage tank

11: Bump

110: Limiting slot

12: Groove

13: The first convex body

14: First piercing

15: Plug-in slot

16: Grooving

17: Second convex body

170: Second piercing

171: Missing slot

18: Positioning groove

21: Change number knob

210: convex body

211: Grooving

212: Limiting boss

213: Guide groove

214: Arc section

22: Change file number

220:Through hole

221: Guide tab

222:Curved surface

223: Positioning groove

3: Word wheel

30: Numbers

31: Positioning slot

32: Groove

33:Through hole

400: Large diameter wall

401: Small diameter wall

402: Large diameter perforation

403: Small diameter perforation

404: Gap

405: Corresponding slot

406: Positioning convex body

43: Third buckle sleeve

45: Fifth buckle sleeve

47: Seventh buckle sleeve

49: Ninth buckle sleeve

5: Indicator board

50:Piercing

51: Inlay

52: Indicator tab

6: Spring

7: Lock bolt

70: Push block

71: Limiting convex strip

72: Grooving

8: Upper cover

80: Chute

81:Through hole

82: Corresponding mark

83:Piercing

84: Arc groove

85: Positioning inlay

86: Lock number

Claims (8)

A memory number lock, comprising: A lock base, the lock base is provided with a receiving groove, one end of the lock base is provided with a groove, a first convex body is provided in the receiving groove of the lock base at a position corresponding to the groove, a first through hole and two insertion grooves are provided on the inner wall of the groove, the first through hole and the two insertion grooves are connected to the receiving groove, a groove is provided on the lock base and connected to the first through hole, a second convex body is provided inwardly at the other end of the receiving groove of the lock base corresponding to the position of the first convex body, a second through hole is provided in the second convex body, and a notch is provided on the second through hole; A number-changing knob is arranged in the groove of the lock seat, a convex body is arranged on the outer end surface of the number-changing knob, a groove is arranged on the convex body, a limiting convex column is arranged on the outer end surface of the number-changing knob, two guide grooves are arranged oppositely on the other end of the number-changing knob, and one side of the two guide grooves is arranged as an arc section; A number-changing stopper is sleeved on the first convex body of the lock seat, the number-changing stopper is provided with a through hole, and two guide convex pieces are arranged oppositely on one end of the number-changing stopper, the two guide convex pieces are respectively inserted into the two insertion grooves of the lock seat, and are located in the two guide grooves of the number-changing knob, and the opposite side of the two guide convex pieces is arranged as an arc surface, and a positioning groove is arranged oppositely on the wall surface of the number-changing stopper, and one of the positioning grooves is aligned with the groove of the lock seat; A number wheel set is arranged in the receiving groove of the lock base. The number wheel set is composed of several wheels, several buckle bushings and several indicator plates. Ten numbers (0-9) are arranged on the outer wall of each wheel. One end of the inner wall of each wheel is arranged with several positioning slots. The other end of each wheel is provided with a groove. A through hole is arranged in the middle of each wheel. Each buckle bushing is arranged in each wheel. The outer wall of the buckle bushing is provided with a large diameter wall and a small diameter wall. The small diameter wall is penetrated through the through hole of the wheel. A large diameter through hole and a small diameter through hole are arranged in the buckle bushing. A notch is arranged on the small diameter through hole. The buckle bushing is made in ten kinds. , the outer wall surfaces of the ten kinds of buckle bushings are provided with corresponding grooves corresponding to the positions of the ten numbers (0-9) on the character wheel, so that the notches of the ten kinds of buckle bushings and the corresponding grooves are the corresponding positions of the ten numbers on the character wheel, and the small diameter wall surface of the buckle bushing is provided with several positioning protrusions for being clamped in the positioning clamping groove of the character wheel, each of the indicator plates is respectively provided on one side of each of the character wheels, and a part of each of the indicator plates is provided in the groove of each of the character wheels, and each of the indicator plates is provided with a through hole in the middle, and an inlay is convexly provided in the through hole of each of the indicator plates, and the inlay is for being embedded in the corresponding groove of the buckle bushing, and an indicating convex piece is convexly provided on the outer peripheral wall surface of each of the indicator plates at the position corresponding to the inlay; A spring is sleeved on the second protrusion of the lock seat; A lock bolt is inserted into the number change gear body and the number wheel set, a push block is convexly provided on the lock bolt, a limiting convex strip is provided on one side of the push block on the lock bolt, and a plurality of grooves are provided on the limiting convex strip; An upper cover is provided on the lock base, and a slide groove is provided on the top surface of the upper cover for the push block of the lock bolt to pass through. A through hole is provided on the top surface of the upper cover corresponding to each position of the number wheel of the number wheel set. A through hole is provided on one end surface of the upper cover, and the through hole of the upper cover is provided for the convex body of the number-changing knob to pass through. An arc groove is provided on the inner wall surface of the upper cover, and the limit convex column of the number-changing knob is provided in the arc groove. A memory number lock as described in claim 1, wherein a plurality of protrusions are equidistantly arranged in the receiving groove of the lock base, and a limiting groove is formed between the protrusions. A memory number lock as described in claim 1, wherein a positioning groove is provided at the bottom of the lock base, and a positioning inlay is provided on the inner wall surface of the upper cover at a position corresponding to the positioning groove of the lock base. The memory number lock as described in claim 1, wherein the corresponding grooves of the ten types of buckle sleeves are respectively: the corresponding groove of the first buckle sleeve corresponds to the position of the number (1) on the character wheel, the corresponding groove of the second buckle sleeve corresponds to the position of the number (2) on the character wheel, the corresponding groove of the third buckle sleeve corresponds to the position of the number (3) on the character wheel, the corresponding groove of the fourth buckle sleeve corresponds to the position of the number (4) on the character wheel, and the corresponding groove of the fifth buckle sleeve corresponds to the position of the number (5). The corresponding groove of the sixth lock sleeve corresponds to the position of the number (5) on the character wheel, the corresponding groove of the seventh lock sleeve corresponds to the position of the number (7) on the character wheel, the corresponding groove of the eighth lock sleeve corresponds to the position of the number (8) on the character wheel, the corresponding groove of the ninth lock sleeve corresponds to the position of the number (9) on the character wheel, and the corresponding groove of the tenth lock sleeve corresponds to the position of the number (0) on the character wheel. A memory number lock as described in claim 1, wherein the corresponding groove of the buckle sleeve is arranged on the small diameter wall surface of the buckle sleeve. A memory number lock as described in claim 1, wherein the corresponding groove of the buckle sleeve is arranged on the large diameter wall surface of the buckle sleeve. A memory number lock as described in claim 1, wherein corresponding marks are provided between each through hole on the top surface of the cover. A memory number lock as described in claim 1, wherein a lock number is provided on the top cover.

Images