A password folding lock to prevent garbled codes

Abstract

The present invention relates to the technical field of password locks, and specifically discloses a password folding lock for preventing garbled codes, comprising a lock shell, a lock cavity with a rotary groove formed inside the lock shell, a central lock shaft which can rotate about its rotary axis and move along its rotary axis is arranged in the lock cavity, a limit stop structure which can limit the linear movement and rotation of the central lock shaft is arranged between the lock shell and the central lock shaft; a plurality of lock blocks which are evenly distributed are fixedly arranged on the central lock shaft along its axial direction, and the inner lock ring structure can be fixed and matched with each other through the lock shell, the password dial wheel, the central lock shaft, the retaining spring locking structure and the inner lock ring structure, so that when the password is adjusted, the inner lock ring structure can be fixed, and the position of the password dial wheel after adjustment can be fixed, so that garbled codes are placed from the inside out, and the occurrence of misoperation and garbled passwords can be greatly avoided.

Description

Technical Field

[0001] The invention relates to the technical field of password locks, and in particular to a password folding lock capable of preventing garbled codes. Background Art

[0002] Rotary combination locks are a common type of locks, widely used in luggage, safes, fitness cabinets, lockers and other scenarios to protect property safety. Rotary combination locks usually consist of multiple wheels (usually 3 or 4 digits), a lock body, a lock tongue and other parts. Each wheel is engraved with numbers or letters for setting and identifying passwords.

[0003] The disclosure discloses an anti-garbled code adjustment mechanism and a combination lock having the same, the adjustment mechanism comprising an adjustment slider and an adjustment wheel, the adjustment slider being provided with an adjustment groove, the adjustment groove being provided with a card convex, and the adjustment wheel being provided with a card slot; when the password needs to be reset, the adjustment slider is pushed to the adjustment position, the adjustment wheel will slide into the adjustment groove, so that the combination wheel is disengaged from the adjustment wheel, and the card convex is stuck in the card slot.

[0004] A folding combination lock with light with publication number CN218953025U includes a shell and a mounting block, a combination lock body is provided on the surface of the shell, a folding block is provided at one end of the shell, the shell is fixedly connected to the mounting block, a protective device is installed on the shell with the aid of the mounting block, the protective device includes a connecting plate, the connecting plate is clamped with the mounting block, and a lighting lamp is provided on the surface of the connecting plate.

[0005] The existing folding combination lock is easily misoperated if not properly operated, resulting in garbled passwords, especially when the password is adjusted and the lock is in an unlocked state that has not been reset, and the customer continues to turn the combination wheel, resulting in a disordered password. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] The purpose of the present invention is to provide a password folding lock that prevents garbled codes in order to solve the above problems.

[0008] (II) Technical solution

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] The present invention provides a folding password lock for preventing garbled codes, comprising a lock shell, wherein a lock cavity with a rotation groove is formed inside the lock shell, a central lock shaft which can rotate about its rotation axis and can move along its rotation axis is arranged in the lock cavity, and a limit stop structure which can limit the linear movement and rotation of the central lock shaft is arranged between the lock shell and the central lock shaft;

[0011] The central lock shaft is fixedly provided with a plurality of evenly distributed lock blocks along its axial direction, the outer side of the central lock shaft is provided with a password dial wheel along its axial direction with the same number as the lock blocks, and an inner lock ring structure is provided between each password dial wheel and the central lock shaft;

[0012] The outer side of the password dial is provided with a plurality of arc-shaped spaced grooves along its circumferential direction, and one side of the lock housing is provided with a spring locking structure for cooperating with the arc-shaped spaced grooves to realize elastic locking and locking of the password dial;

[0013] The lock shell is provided with a folding lock rod structure, and one end of the lock shell is provided with a locking groove for cooperating with a central lock shaft to lock the folding lock rod structure.

[0014] Furthermore, a tooth block is protruded on the inner wall of the password dial between the two adjacent arc-shaped spacing grooves, and a tooth groove is formed between the two adjacent tooth blocks, and the tooth block is arranged on the inner wall of one end of the password dial along its axial direction, and the inner lock ring structure includes a lock ring body, and the outer side of the lock ring body is protruded along its circumferential direction with a plurality of hanging teeth for cooperating with the tooth groove. When the hanging teeth and the tooth groove are cooperating with each other, the password dial can drive the lock ring body to rotate around the central lock axis when it is turned and rotated, and an inner convex ring is protruded on the inner side wall of the lock ring body, and an unlocking notch for cooperating with the lock block is opened on the inner convex ring, and an inner push frame is arranged at the unlocking notch, and the outer contour of the inner push frame is U-shaped, and the U-shaped opening of the inner push frame is connected to the unlocking notch.

[0015] Furthermore, the limit stop structure includes a guide column fixedly arranged on the outside of the center lock shaft, and a straight guide groove extending axially along the center lock shaft is opened on the inner wall of the lock shell, and an arc guide groove is formed at the end of the straight guide groove, and the arc center of the arc guide groove is located on the central axis of the center lock shaft.

[0016] Furthermore, an opening groove is provided on one side of the exterior of the lock shell for exposing the combination dial wheel, and a supporting partition for separating the combination dial wheels is provided in the lock shell at the opening groove, and a limiting gap is formed between two adjacent supporting partitions for limiting the axial movement of the hanging teeth along the center lock shaft, and the combination dial wheel is rotatably arranged in the limiting gap, and a driving notch is provided at the end of the lock shell opposite to the locking slot, and a driving plate is fixedly provided on the outer side of one end of the center lock shaft located at the driving notch, and an indicator mark is provided on the end of the center lock shaft close to the driving notch.

[0017] Furthermore, the folding locking rod structure includes a first locking rod and a second locking rod, and a plurality of third locking rods are arranged between the first locking rod and the second locking rod. The first locking rod, the second locking rod and the third locking rod are hingedly connected to each other through a hinge rod, and the ends of the first locking rod are hingedly connected to the lock shell through a hinge seat, and a plug lock head is fixedly arranged on the end of the second locking rod, and a locking hole for passing the center lock shaft is formed on the plug lock head, and a card hole for embedding the end of the center lock shaft is formed on the inner end surface of the plug lock groove, and a binding boss is fixedly arranged on the second locking rod, and one end of the binding belt is connected to the two sides of the binding boss, and Velcro is arranged on the other ends of the two binding belts.

[0018] Furthermore, the retaining spring locking structure includes a locking box, which is fixedly arranged on the lock shell, and a lifting support plate capable of moving radially along the password dial wheel is arranged in the locking box, and the lifting support plate has a rectangular shape, and guide shafts are arranged at the four corners of the lifting support plate, and one end of each guide shaft is fixedly arranged on the inner wall of the locking box, and guide through holes for sliding through the guide shaft are opened at the four corners of the lifting support plate, and the axial direction of the guide shaft is consistent with the radial direction of the password dial wheel. An eccentric dial wheel structure for rotating and moving the lifting support plate is arranged in the locking box, and an elastic locking spring structure corresponding to the password dial wheel is arranged on the lifting support plate.

[0019] Furthermore, the eccentric dial wheel structure includes an eccentric wheel rotatably arranged in a locking box, one end of the rotation axis of the eccentric wheel passes through the locking box and is fixedly connected to a knob, and a first arc-shaped groove for fitting with the eccentric wheel is formed on the lifting support plate, and a second arc-shaped groove is formed on the inner side of the first arc-shaped groove.

[0020] Furthermore, the elastic locking spring structure includes a guide rod, one end of which is fixedly arranged on the lifting support plate, and the other end of the guide rod is slidably connected to a wheel seat, and a guide sliding hole for slidingly connecting with the guide rod is opened on the wheel seat, and a stop wheel for cooperating with the arc-shaped spacing groove is rotatably arranged on the wheel seat, and a retaining spring is nested on the outer side of the guide rod between the wheel seat and the guide rod.

[0021] Furthermore, the first elastic reset structure includes a first outer retaining ring fixedly arranged on the inner wall of the lock cavity, a first inner retaining ring fixedly arranged on the outer wall of the center lock shaft between the first outer retaining ring and the inner lock ring structure, a first reset spring fixedly connected to the first inner retaining ring and the first outer retaining ring, and when the end of the center lock shaft is inserted into the card hole, the first reset spring is in a compressed state.

[0022] Furthermore, the second elastic reset structure includes a second outer retaining ring fixedly arranged on the inner wall of the lock cavity, a second inner retaining ring fixedly arranged on the outer wall of the center lock shaft between the second outer retaining ring and the inner lock ring structure, and a second reset spring fixedly connected to the second inner retaining ring and the second outer retaining ring. When the end of the center lock shaft is inserted into the card hole, the first reset spring is in a normal state.

[0023] (III) Beneficial effects

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. Through the mutual coordination and cooperation among the lock shell, the password dial, the central lock shaft, the spring locking structure and the inner lock ring structure, the inner lock ring structure can be fixed when the password is adjusted, and the position of the password dial after adjustment can be fixed, thereby placing the garbled code from the inside out, greatly avoiding the occurrence of misoperation and the garbled code of the password;

[0026] 2. When adjusting the password, the guide column is inserted into the arc-shaped guide slot to keep the position of the central lock shaft stable, which can save effort and facilitate the adjustment of the password. When unlocking, the linear guide slot can guide the guide column to move in a linear direction until the lock block and the inner end surface of the inner push frame are just in contact.

[0027] 3. The retaining spring locking structure has two functions. The first function is to cooperate with the arc-shaped spacing groove when the password dial is normally turned to position the password dial at each digital password and achieve precise turning. The second function is to lock the password dial to prevent garbled characters from appearing on the password dial after the password of the password dial is readjusted.

[0028] 4. The first elastic reset structure and the second elastic reset structure cooperate to provide elastic resistance to the movement of the central lock shaft along its axial direction, provide elastic driving force for the separation of the central lock shaft and the card hole when unlocking, and provide elastic driving force for the reset of the central lock shaft when changing the password;

[0029] 5. The inner push frame can always keep the inner lock ring structure and the center lock shaft axis unchanged in the process of unlocking and adjusting the password, thus avoiding the occurrence of internal garbled codes. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0032] Figure 2 The present invention Figure 1 Schematic diagram of the left view structure;

[0033] Figure 3 The present invention Figure 1 A rear view structural diagram of ;

[0034] Figure 4 The present invention Figure 1 A schematic diagram of a three-dimensional structure in a first direction;

[0035] Figure 5 The present invention Figure 1 AA cross-sectional structural diagram;

[0036] Figure 6 The present invention Figure 2 BB cross-sectional structure diagram;

[0037] Figure 7 The present invention Figure 6 A schematic diagram of the local enlarged structure at D;

[0038] Figure 8 The present invention Figure 6 A schematic diagram of the local enlarged structure at E;

[0039] Fig. 9 The present invention Figure 6 A schematic diagram of the local enlarged structure at F;

[0040] Fig.10 The present invention Figure 3 Schematic diagram of CC cross-section structure;

[0041] Fig.11 The present invention Figure 1 A schematic diagram of a three-dimensional structure in a second direction;

[0042] Fig.12 It is a schematic diagram of the structure of the password dial wheel and the inner lock ring structure of the present invention;

[0043] Fig.13 It is a three-dimensional structural schematic diagram of the inner locking ring structure of the present invention;

[0044] Fig.14 It is a schematic diagram of the three-dimensional structure of the password dial wheel of the present invention;

[0045] Fig.15 2 is a schematic diagram of a second embodiment of the folding lock rod structure of the present invention.

[0046] The accompanying drawings are described as follows: 1. Lock housing; 101. Opening groove; 102. Supporting partition; 103. Locking groove; 104. Toggle notch; 105. Clamping hole; 106. Linear guide slot; 107. Arc guide slot; 2. Password dial; 201. Arc spacing groove; 202. Tooth groove; 203. Tooth block; 3. Center lock shaft; 301. Turning plate; 302. Guide column; 303. Lock block; 304. Indicator mark; 4. Retaining spring locking structure; 401. Locking box; 402. Knob; 403. Guide shaft; 404. Lifting support plate; 405. First arc embedded groove; 406. Eccentric wheel; 407. Second arc embedded groove; 408. Wheel seat; 409. Wheel stop; 410. Guide sliding hole; 411. Guide rod; 412. Stop spring; 5. First elastic reset structure; 501. First outer retaining ring; 502. First reset spring; 503. First inner retaining ring; 6. Second elastic reset structure; 601. Second inner retaining ring; 602. Second reset spring; 603. Second outer retaining ring; 7. Inner locking ring structure; 701. Locking ring body; 702. Inner convex ring; 703. Hanging tooth; 704. Unlocking notch; 705. Inner push frame; 8. Folding locking rod structure; 801. First locking rod; 802. Second locking rod; 803. Articulated seat; 804. Third locking rod; 805. Binding belt; 806. Articulated rod; 807. Binding boss; 808. Plug lock head; 809. Velcro; 810. Articulated column. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] See also Figure 1-15As shown, the present invention provides a password folding lock for preventing garbled codes, comprising a lock shell 1, a lock cavity with a rotary groove is formed inside the lock shell 1, a central lock shaft 3 which can rotate about its rotary axis and move along its rotary axis is arranged in the lock cavity, a limit stop structure which can limit the linear movement and rotation of the central lock shaft 3 is arranged between the lock shell 1 and the central lock shaft 3; a plurality of evenly distributed lock blocks 303 are fixedly arranged on the central lock shaft 3 along its axial direction, a password dial wheel 2 which is the same in number as the lock blocks 303 is arranged on the outer side of the central lock shaft 3 along its axial direction, and a space between each password dial wheel 2 and the central lock shaft 3 is evenly spaced. An inner locking ring structure 7 is separately provided; 10 arc-shaped spaced grooves 201 are opened on the outer side of the code dial 2 along its circumferential direction, and numbers are marked on the outer side of the code dial 2 between two arc-shaped spaced grooves 201, corresponding to ten numbers 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9, and a spring locking structure 4 is provided on one side of the lock shell 1 for cooperating with the arc-shaped spaced grooves 201 to realize elastic locking and locking of the code dial 2; a folding lock rod structure 8 is provided on the lock shell 1, and a locking groove 103 is provided at one end of the lock shell 1 for cooperating with the central lock shaft 3 to lock the folding lock rod structure 8.

[0049] A tooth block 203 is protruded on the inner side wall of the code dial wheel 2 located between the two arc-shaped spacing grooves 201, and a tooth groove 202 is formed between the two adjacent tooth blocks 203. The tooth block 203 is arranged on the inner side wall of one end of the code dial wheel 2 along its axial direction, that is, the inner side wall of the other end of the code dial wheel 2 along its axial direction is a smooth surface, which is convenient for the hanging tooth 703 to rotate there. The inner lock ring structure 7 includes a lock ring body 701, and the outer side of the lock ring body 701 is protruded along its circumferential direction and is provided with a plurality of hanging teeth for matching and connecting with the tooth groove 202. Tooth 703, when the hanging tooth 703 and the tooth groove 202 are matched and connected with each other, the password dial wheel 2 can drive the lock ring body 701 to rotate around the central lock axis 3 when it is turned and rotated. The inner wall protrusion of the lock ring body 701 is provided with an inner convex ring 702, and the inner convex ring 702 is provided with an unlocking notch 704 for matching with the locking block 303. An inner push frame 705 is provided at the unlocking notch 704. The outer contour of the inner push frame 705 is U-shaped, and the U-shaped opening of the inner push frame 705 is connected to the unlocking notch 704.

[0050] See the instruction manual Figure 5 and Fig.10As shown, the limit stop structure includes a guide column 302 fixedly arranged on the outside of the center lock shaft 3, and a linear guide slot 106 extending axially along the center lock shaft 3 is provided on the inner side wall of the lock housing 1, and an arc-shaped guide slot 107 is formed at the end of the linear guide slot 106, and the arc center of the arc-shaped guide slot 107 is located on the central axis of the center lock shaft 3. Through the above-mentioned specific structural design, when the guide column 302 moves from one end of the linear guide slot 106 to one end of the arc-shaped guide slot 107, it is in the state of changing the password. At this time, in order to avoid the position of the center lock shaft 3 from shifting, the center lock shaft 3 is rotated so that the guide column 302 is stuck in the arc-shaped guide slot 107, thereby keeping the position of the center lock shaft 3 stable, and the password can be adjusted labor-savingly and conveniently. When unlocking, the guide column 302 only needs to move in the linear guide slot 106, without changing the angle, and moves to the state where the lock block 303 just abuts against the inner end surface of the inner push frame 705.

[0051] See the instruction manual Figure 1 , Figure 3 , Figure 4 and Fig.11 As shown, an opening groove 101 for exposing the combination dial 2 is provided on one side of the exterior of the lock shell 1. In actual application, the combination dial 2 can be turned and rotated through the opening groove 101, and it is convenient for the staff to check the turning status of the combination dial 2. A supporting partition 102 for separating each combination dial 2 is provided in the lock shell 1 located at the opening groove 101, and a limiting gap for limiting the axial movement of the hanging tooth 703 along the center lock shaft 3 is formed between two adjacent supporting partitions 102. The combination dial 2 is rotatably arranged in the limiting gap, and a turning notch 104 is provided at the end of the lock shell 1 opposite to the locking groove 103. A turning plate 301 is fixedly provided on the outer side of the protrusion at one end of the center lock shaft 3 located at the turning notch 104, and an indication mark 304 is provided at the end of the center lock shaft 3 close to the turning plate 301. Through the above-mentioned specific structural design, the turning plate 301 can facilitate the center lock shaft 3 to be turned and moved along its axial direction, and can also facilitate the center lock shaft 3 to be turned and rotated about its central axis.

[0052] See the instruction manual Figure 1 , Figure 2 , Figure 4 and Fig.11As shown, the folding locking rod structure 8 includes a first locking rod 801 and a second locking rod 802, and a plurality of third locking rods 804 are arranged between the first locking rod 801 and the second locking rod 802. The first locking rod 801, the second locking rod 802 and the third locking rod 804 are hingedly connected to each other through a hinge rod 806. The end of the first locking rod 801 is hinged to the lock housing 1 through a hinge seat 803. A latch head 808 is fixedly arranged on the end of the second locking rod 802. A locking hole for passing the center lock shaft 3 is formed on the latch head 808. A clamping hole 105 for embedding the end of the center lock shaft 3 is formed on the inner end surface of the latch groove 103. A binding boss 807 is fixedly arranged on the second locking rod 802. One end of a binding belt 805 is connected to both sides of the binding boss 807, and Velcro 809 is arranged on the other end of the two binding belts 805. In actual application, the inner size of the latch slot 103 is larger than the size of the latch head 808, so that when the first locking rod 801, the second locking rod 802 and the third locking rod 804 are in a folded state, the latch head 808 can be inserted into the latch slot 103 through the hinge of the hinge seat 803, see the attached manual. Fig.15 As shown, a hinge column 810 may be further provided between the latch head 808 and the second locking rod 802 , wherein the axial direction of the hinge column 810 and the axial direction of the hinge rod 806 are perpendicular to each other.

[0053] The retaining spring locking structure 4 includes a locking box 401, which is fixedly arranged on the lock shell 1. A lifting support plate 404 capable of moving radially along the password dial wheel 2 is arranged in the locking box 401. The lifting support plate 404 has a rectangular shape. Guide shafts 403 are arranged at the four corners of the lifting support plate 404. One end of each guide shaft 403 is fixedly arranged on the inner wall of the locking box 401. Guide through holes for sliding through the guide shaft 403 are opened at the four corners of the lifting support plate 404. The axial direction of the guide shaft 403 is consistent with the radial direction of the password dial wheel 2. An eccentric dial wheel structure for rotating and moving the lifting support plate 404 is arranged in the locking box 401. An elastic locking spring structure corresponding to the password dial wheel 2 is arranged on the lifting support plate 404. The eccentric thumbwheel structure includes an eccentric wheel 406 rotatably arranged in a locking box 401, one end of the rotation axis of the eccentric wheel 406 passes through the locking box 401 and is fixedly connected to a knob 402, a first arc-shaped embedded groove 405 for fitting with the eccentric wheel 406 is provided on the lifting support plate 404, and a second arc-shaped embedded groove 407 is provided inside the first arc-shaped embedded groove 405. The elastic lock spring structure includes a guide rod 411, one end of the guide rod 411 is fixedly arranged on the lifting support plate 404, the other end of the guide rod 411 is slidably connected to a wheel seat 408, the wheel seat 408 is provided with a guide sliding hole 410 for slidingly connecting with the guide rod 411, a wheel 409 for fitting with the arc-shaped spacing groove 201 is rotatably arranged on the wheel seat 408, and a locking spring 412 is embedded outside the guide rod 411 between the wheel seat 408 and the guide rod 411. In actual application, the spring locking structure 4 has two functions. The first function is to cooperate with the arc-shaped spacing groove 201 during the normal rotation of the password dial 2 to realize the positioning of the password dial 2 at each digital password and achieve precise rotation. The second function is to lock the password dial 2, thereby preventing garbled characters from appearing on the password dial 2 after the password of the password dial 2 is readjusted.

[0054] See the instruction manual Figure 7 As shown, the first elastic reset structure 5 includes a first outer retaining ring 501 fixedly arranged on the inner wall of the lock cavity, a first inner retaining ring 503 is fixedly arranged on the outer wall of the center lock shaft 3 between the first outer retaining ring 501 and the inner lock ring structure 7, and a first reset spring 502 is fixedly connected to the first inner retaining ring 503 and the first outer retaining ring 501. When the end of the center lock shaft 3 is inserted into the card hole 105, the first reset spring 502 is in a compressed state.

[0055] See the instruction manual Fig. 9As shown, the second elastic reset structure 6 includes a second outer retaining ring 603 fixedly arranged on the inner wall of the lock cavity, a second inner retaining ring 601 is fixedly arranged on the outer wall of the center lock shaft 3 between the second outer retaining ring 603 and the inner lock ring structure 7, and a second reset spring 602 is fixedly connected between the second inner retaining ring 601 and the second outer retaining ring 603. When the end of the center lock shaft 3 is inserted into the card hole 105, the first reset spring 502 is in a normal state.

[0056] By cooperating with the first elastic reset structure 5 and the second elastic reset structure 6, it is possible to provide elastic resistance to the movement of the center lock shaft 3 along its axial direction. For example, when in a locked state, the first reset spring 502 is in a compressed state, thereby providing an elastic driving force for the separation of the center lock shaft 3 and the card hole 105 when unlocking. When changing the password, the second reset spring 602 is in a compressed state, thereby providing an elastic driving force for resetting the center lock shaft 3 when resetting the center lock shaft 3 after changing the password.

[0057] Working principle and technical effects of the present invention:

[0058] When in use, the folding lock rod structure 8 is unfolded. Specifically, the first lock rod 801, the second lock rod 802 and the third lock rod 804 are hinged and opened through the hinge rod 806, and the end of the central lock shaft 3 with the dial plate 301 is pulled to move the central lock shaft 3 along the direction of the latching slot 103 to the dialing notch 104, so that the end of the central lock shaft 3 moves out of the card hole 105 and exposes the latching slot 103. At this time, the central lock shaft 3 is moved through the lock hole and inserted into the card hole 105, and then the latch head 808 is inserted into the latching slot 103, and the password dial wheel 2 is turned to scramble the password;

[0059] When unlocking, each combination dial 2 is turned, and the combination dial 2 turns the lock ring body 701 to rotate through the hanging teeth 703. When each combination dial 2 is turned correctly, the unlocking notches 704 of each inner lock ring structure 7 and the locking blocks 303 on the central lock shaft 3 are in the same straight line. Therefore, when the central lock shaft 3 is pulled, the locking blocks 303 pass through the unlocking notches 704 and slide into the inner push frame 705, and abut against the inner end surface of the inner push frame 705. At this time, the end of the central lock shaft 3 is separated from the lock hole, and the axial position of the inner lock ring structure 7 along the central lock shaft 3 does not change.

[0060] When the password is changed, each password dial wheel 2 is turned and the lock ring body 701 is turned to rotate through the hanging teeth 703. When each password dial wheel 2 is turned correctly, the central lock shaft 3 is pulled, and the lock block 303 passes through the unlocking notch 704 and slides into the inner push frame 705 and abuts against the inner end surface of the inner push frame 705. At this time, the central lock shaft 3 is further pulled, and the lock block 303 drives the inner lock ring structure 7 to move axially along the central lock shaft 3, so that the hanging teeth 703 and the tooth grooves 202 are separated from each other, and the password dial wheel 2 can be turned to change the password. At this time, the cooperation between the lock block 303 and the inner push frame 705 can avoid displacement of the inner lock ring structure 7 and avoid internal garbled codes. After the password is adjusted, the knob 402 can be rotated, thereby driving the eccentric wheel 406 to rotate, thereby supporting the lifting support plate 404 axially along the guide shaft 403, so that the push wheel 409 is clamped and fixed in the arc-shaped spacing groove 201. At this time, the password dial 2 can no longer rotate and is in a clamped state, thereby avoiding external garbled codes. At this time, the central lock shaft 3 drives the inner lock ring structure 7 to reset, and the hanging tooth 703 and the tooth groove 202 are re-matched and connected to each other, and the knob 402 is reset and rotated, and the password dial 2 can be rotated again to shuffle, and each time the password dial 2 rotates, the push wheel 409 can be elastically clamped with the arc-shaped spacing groove 201 through the locking spring 412, so that each rotation of the password dial 2 can be accurate.

[0061] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A password folding lock to prevent garbled codes, characterized by: The invention comprises a lock shell, wherein a lock cavity with a rotation groove is formed inside the lock shell, a central lock shaft which can rotate about its rotation axis and can move along its rotation axis is arranged in the lock cavity, and a limit stop structure which can limit the linear movement and rotation of the central lock shaft is arranged between the lock shell and the central lock shaft; The central lock shaft is fixedly provided with a plurality of evenly distributed lock blocks along its axial direction, the outer side of the central lock shaft is provided with a password dial wheel along its axial direction with the same number as the lock blocks, and an inner lock ring structure is provided between each password dial wheel and the central lock shaft; The outer side of the password dial is provided with a plurality of arc-shaped spaced grooves along its circumferential direction, and one side of the lock housing is provided with a spring locking structure for cooperating with the arc-shaped spaced grooves to realize elastic locking and locking of the password dial; The lock housing is provided with a folding lock rod structure, and one end of the lock housing is provided with a locking groove for cooperating with a central lock shaft to lock the folding lock rod structure; The limit stop structure includes a guide column fixedly arranged on the outside of the central lock shaft, and a linear guide slot extending along the axial direction of the central lock shaft is formed on the inner side wall of the lock housing, and an arc-shaped guide slot is formed at the end of the linear guide slot, and the arc center of the arc-shaped guide slot is located on the central axis of the central lock shaft; The snap spring locking structure comprises a locking box, the locking box is fixedly arranged on the lock shell, a lifting support plate which can move radially along the password dial wheel is arranged in the locking box, the lifting support plate is in the shape of a rectangular parallelepiped, guide shafts are arranged at the four corners of the lifting support plate, one end of each guide shaft is fixedly arranged on the inner side wall of the locking box, guide through holes for sliding through the guide shafts are opened at the four corners of the lifting support plate, the axial direction of the guide shaft is consistent with the radial direction of the password dial wheel, an eccentric dial wheel structure for rotating and moving the lifting support plate is arranged in the locking box, and an elastic lock spring structure corresponding to the password dial wheel is arranged on the lifting support plate; The eccentric thumbwheel structure includes an eccentric wheel rotatably arranged in a locking box, one end of the rotation axis of the eccentric wheel passes through the locking box and is fixedly connected to a knob, a first arc-shaped embedding groove for fitting with the eccentric wheel is formed on the lifting support plate, and a second arc-shaped embedding groove is formed on the inner side of the first arc-shaped embedding groove.

2. A password folding lock for preventing garbled codes according to claim 1, characterized in that: A tooth block is protruded on the inner wall of the password dial located between the two adjacent arc-shaped spacing grooves, and a tooth groove is formed between the two adjacent tooth blocks, and the tooth block is arranged on the inner wall of one end of the password dial along its axial direction, and the inner lock ring structure comprises a lock ring body, and the outer side of the lock ring body is protruded along its circumferential direction with a plurality of hanging teeth for cooperating with the tooth groove. When the hanging teeth and the tooth groove are cooperating with each other, the password dial can drive the lock ring body to rotate around the central lock axis when it is turned and rotated, and an inner convex ring is protruded on the inner side wall of the lock ring body, and an unlocking notch for cooperating with the lock block is opened on the inner convex ring, and an inner push frame is arranged at the unlocking notch, and the outer contour of the inner push frame is U-shaped, and the U-shaped opening of the inner push frame is connected to the unlocking notch.

3. A password folding lock for preventing garbled codes according to claim 1, characterized in that: An opening groove for exposing the combination dial is provided on one side of the exterior of the lock shell, a supporting partition for separating the combination dials is provided in the lock shell at the opening groove, a limiting gap for limiting the axial movement of the hanging teeth along the center lock shaft is formed between two adjacent supporting partitions, the combination dial wheel is rotatably arranged in the limiting gap, a dial notch is provided on the end of the lock shell opposite to the latch slot, a dial plate is fixedly provided on the outer side of one end of the center lock shaft located at the dial notch, and an indicator mark is provided on the end of the center lock shaft close to the dial plate.

4. According to claim 1, a password folding lock for preventing garbled codes is characterized in that: The folding locking rod structure includes a first locking rod and a second locking rod, a plurality of third locking rods are arranged between the first locking rod and the second locking rod, the first locking rod, the second locking rod and the third locking rod are hingedly connected to each other through a hinge rod, the ends of the first locking rod are hingedly connected to the lock shell through a hinge seat, a plug lock head is fixedly arranged on the end of the second locking rod, a locking hole for passing the center lock shaft is formed on the plug lock head, a card hole for embedding the end of the center lock shaft is formed on the inner end surface of the plug lock groove, a binding boss is fixedly arranged on the second locking rod, one end of the binding belt is connected to the two sides of the binding boss, and Velcro is arranged on the other ends of the two binding belts.

5. According to claim 1, a password folding lock for preventing garbled codes is characterized in that: The elastic locking spring structure includes a guide rod, one end of which is fixedly arranged on a lifting support plate, and the other end of the guide rod is slidably connected to a wheel seat, a guide sliding hole for slidingly connecting with the guide rod is provided on the wheel seat, a stop wheel for cooperating with an arc-shaped spacing groove is rotatably arranged on the wheel seat, and a retaining spring is nested on the outer side of the guide rod between the wheel seat and the guide rod.

6. A password folding lock for preventing garbled codes according to claim 1, characterized in that: The first and second elastic reset structures for elastically supporting the center lock shaft along its axial direction are respectively provided at both ends of the lock shell, the first elastic reset structure includes a first outer retaining ring fixedly arranged on the inner wall of the lock cavity, a first inner retaining ring is fixedly arranged on the outer wall of the center lock shaft between the first outer retaining ring and the inner lock ring structure, a first reset spring is fixedly connected to the first inner retaining ring and the first outer retaining ring, and when the end of the center lock shaft is inserted into the card hole, the first reset spring is in a compressed state.

7. A password folding lock for preventing garbled codes according to claim 6, characterized in that: The second elastic reset structure includes a second outer retaining ring fixedly arranged on the inner wall of the lock cavity, a second inner retaining ring fixedly arranged on the outer wall of the center lock shaft between the second outer retaining ring and the inner lock ring structure, and a second reset spring fixedly connected to the second inner retaining ring and the second outer retaining ring. When the end of the center lock shaft is inserted into the card hole, the first reset spring is in a normal state.

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