A reset auxiliary structure for a wheel combination lock

Abstract

The present invention discloses a reset auxiliary structure of a word wheel password lock, comprising a knob and a word wheel assembly which can rotate relative to each other, a receiving cavity for accommodating the word wheel assembly being provided in the middle of the knob, the word wheel assembly comprising a positioning member, a shifting rod being provided on the positioning member; a reset protrusion, the reset protrusion being able to rotate synchronously with the knob, the reset protrusion comprising a reset surface and a guide surface which are matched and connected, the guide surface being located beside the reset surface, the reset surface being located at the highest point of the reset protrusion; an auxiliary guide block, the auxiliary guide block being able to move relative to the reset protrusion, the supporting surface of the auxiliary guide block being able to be located beside the reset surface; the shifting rod being matched and connected with the reset protrusion, the shifting rod being able to be tilted by the guide surface and matched and connected with the reset surface and the supporting surface of the auxiliary guide block. The present invention adds an auxiliary guide block on the basis of the reset protrusion of the original lock body; the auxiliary guide block can rotate within a certain range following the unlocking and locking process, so as to achieve a delayed code changing function and enhance the stability and accuracy of the word wheel code changing.

Description

Technical Field

[0001] The invention relates to a reset auxiliary structure for a word wheel cipher lock. Background Art

[0002] Combination wheel locks combine the convenience of electronic locks with the stability of key-operated mechanical locks, and are widely used in the market. Currently, the combination of combination wheel locks on the market remains unique between resets, making them difficult to use in places with frequent population movements, such as lockers in shopping malls and bathhouses. Furthermore, the correct combination is displayed when unlocking and locking, requiring the user to actively shuffle the combination to prevent leaks, making operation inconvenient. Improvements have been made, and for details, please refer to Chinese Patent No. 201922402453.8, titled "A Combination Wheel Lock." Its main technical features include a cam mechanism code-changing combination lock that relies on a gradual reset bump to ultimately drive the combination wheel to change code. However, in actual practice, due to the limited switch lock stroke and the relatively small width of the highest point of the gradient reset bump, the character wheel code change stroke is very short. The character wheel will rotate due to inertia, resulting in unstable and inaccurate code change. For example, when automatically reset, the character wheel password should return to: 0000. However, due to the instability and inaccuracy mentioned above, these character wheels may not be able to change codes stably. For example, they may jump from "0" to the adjacent "1" or "9", which cannot provide users with a stable character wheel code change experience. Summary of the Invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a reset auxiliary structure for a word wheel combination lock.

[0004] The present invention is achieved through the following technical solutions:

[0005] A reset auxiliary structure for a word wheel combination lock comprises a knob and a word wheel assembly which can rotate relative to each other, a receiving cavity for placing the word wheel assembly being provided in the middle of the knob, the word wheel assembly comprising a positioning member, a shifting rod being provided on the positioning member, a reset protrusion which can rotate synchronously with the knob, the reset protrusion comprising a matching reset surface and a guide surface, the guide surface being located beside the reset surface, and the reset surface being located at the highest point of the reset protrusion; an auxiliary guide block which can move relative to the reset protrusion, the support surface of the auxiliary guide block being located beside the reset surface; the shifting rod being matched with the reset protrusion, the shifting rod being able to be tilted by the guide surface and matched with the reset surface and the support surface of the auxiliary guide block.

[0006] In the embodiment of the present invention, the reset protrusion includes a reset surface located at the highest point, and both sides of the reset surface are provided with guide surfaces for driving the shift lever to tilt up.

[0007] In the embodiment of the present invention, the side wall of the auxiliary guide block can abut against the side wall of the shifting rod, and when the shifting rod is tilted on the guide surface, it can drive the auxiliary guide block to move relative to the reset protrusion.

[0008] In an embodiment of the present invention, a turntable is further included. The turntable can rotate relative to the reset protrusion, and the auxiliary guide block is cooperatively connected to the turntable.

[0009] In an embodiment of the present invention, the knob includes a base plate, the turntable is rotatably connected to the base plate, and the reset protrusion is provided on the base plate.

[0010] In an embodiment of the present invention, a connecting groove is provided on the bottom plate, and a limiting protrusion is provided on the turntable, and the limiting protrusion is located in the connecting groove.

[0011] In an embodiment of the present invention, a limiting groove is provided on the circumference of the turntable, and a limiting block is provided on the bottom plate. The cooperation between the limiting block and the limiting groove can limit the rotation angle of the turntable.

[0012] In an embodiment of the present invention, a pin shaft is provided on the base plate, the turntable is sleeved on the outside of the pin shaft, a connecting hole is provided in the middle of the pin shaft, a fixing bolt is provided at the connecting hole, and the turntable is connected to the knob through the cooperation of the fixing bolt and the connecting hole.

[0013] In the embodiment of the present invention, the turntable is arranged in the middle of the bottom plate, the reset protrusion is located on the outer peripheral side of the turntable, and the auxiliary guide block is located on the inner peripheral side of the reset protrusion.

[0014] In the embodiment of the present invention, the reset surface of the reset protrusion and the support surface of the auxiliary guide block can be cooperatively connected with the shifting rod at the same time.

[0015] In an embodiment of the present invention, the positioning member includes a rotating shaft, and the positioning member can be tilted and rotated relative to the character wheel assembly after the lever and the reset protrusion cooperate with each other.

[0016] In an embodiment of the present invention, the rotating shaft is located on the outer peripheral side of the reset protrusion.

[0017] In an embodiment of the present invention, the lower end of the guide surface is cooperatively connected with the bottom plate, and the guide surface is a curved surface.

[0018] The present invention provides a reset auxiliary structure for a wheel combination lock, which has the following beneficial effects:

[0019] 1. Based on the reset convex block structure of the existing lock body, the auxiliary guide block is axially fixed to the bottom plate of the lock body. The auxiliary guide block can rotate radially at a certain angle, limiting its axial movement up and down;

[0020] 2. During the unlocking process, the reset convex block drives the positioning piece to move, and the positioning piece drives the character wheel cam to change the code gradually and orderly. When the reset convex block reaches the highest point, it drives the character wheel cam to the lowest point, and the code change is achieved. Due to the rotational inertia force during the driving process of the character wheel, the auxiliary guide block and the lever work again at this time, and the positioning piece maintains the reset state for a longer time, achieving the purpose of delayed code change, making the character wheel code change more stable and accurate;

[0021] 3. During the locking process, the reset convex block drives the positioning piece to move, and the positioning piece drives the character wheel cam to change the code gradually and orderly. At the same time, it drives the auxiliary guide block to rotate to the extreme position. When it reaches the highest point of the reset convex block, the auxiliary guide block will work to delay the code change, making the character wheel code change more stable and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. 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 any creative work.

[0023] Figure 1 It is an exploded view of the present invention.

[0024] Figure 2 It is a schematic diagram of the character wheel assembly in the present invention.

[0025] Figure 3 It is a schematic diagram of the knob in the present invention.

[0026] Figure 4 This is a schematic diagram of the unlocking state in the present invention. Figure 1 .

[0027] Figure 5 This is a schematic diagram of the unlocking state in the present invention. Figure 2 .

[0028] Figure 6 This is a schematic diagram of the unlocking state in the present invention. Figure 3 .

[0029] Figure 7 This is a schematic diagram of the lock state in the present invention Figure 1 .

[0030] Figure 8 This is a schematic diagram of the lock state in the present invention Figure 2 .

[0031] Figure 9 This is a schematic diagram of the lock state in the present invention Figure 3 .

[0032] Figure 10 This is a cross-sectional view of the present invention Figure 1 .

[0033] Figure 11 This is a cross-sectional view of the present invention Figure 2 .

[0034] Figure 12 This is a cross-sectional view of the present invention Figure 3 .

[0035] Figure 13 It is a schematic diagram of limiting the rotation of the turntable in the present invention.

[0036] Figure 14 It is a schematic diagram of the use of the turntable limiting rotation in the present invention. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention for which protection is sought, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0040] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0041] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0042] Referring to the drawings in the specification, a reset auxiliary structure of a wheel combination lock includes a knob 10 and a wheel assembly 20 that can rotate relative to each other. A accommodating cavity 17 for placing the wheel assembly is provided in the middle of the knob. When in use, the wheel assembly is relatively non-rotatable. When unlocking and locking, the knob is rotated. The technology of resetting the wheel assembly in the present invention (as shown in the figure, there are four digital passwords, which can be reset to zero and arranged to form 0000) will not be elaborated in detail here. For details, please refer to the Chinese patent number submitted in the background technology: 201922402453.8, and the patent name is a wheel combination lock. The character wheel assembly includes a positioning member 21, on which a lever 22 is provided; a reset protrusion 30, which can rotate synchronously with the knob. When unlocking or closing the lock, the rotation of the knob will drive the reset protrusion to rotate together, and is used to cooperate with the lever. The reset protrusion includes a reset surface 31 and a guide surface 32 that are connected in a matching manner. The guide surface is located beside the reset surface, and the reset surface is located at the highest point of the reset protrusion; an auxiliary guide block 40, which can move relative to the reset protrusion, and the support surface of the auxiliary guide block can be located beside the reset surface. Preferably, the support surface is located at the upper end of the auxiliary guide block; the lever is connected in a matching manner with the reset protrusion, and the lever can be tilted by the guide surface and connected in a matching manner with the reset surface and the support surface 41 of the auxiliary guide block. In the present invention, when the knob is rotated, the reset protrusion can contact and cooperate with the shift lever, thereby cooperating with the shift lever on the guide surface and the reset surface, so that the shift lever will move up or down, but the shift lever will not rotate with the rotation. At the same time, when the shift lever moves, it can cooperate with the auxiliary guide block, so that the auxiliary guide block can be prevented from rotating like the shift lever.

[0043] Preferably, the reset protrusion includes a reset surface located at the highest point, and guide surfaces for driving the lever to tilt are provided on both sides of the reset surface. In one embodiment, the two guide surfaces can be symmetrically arranged relative to the reset surface. When unlocking or closing the lock, the lever will move from the guide surface at one end to the guide surface at the other end. During this process, the auxiliary guide block may not rotate with the knob at first. As the knob continues to rotate, the auxiliary guide block will rotate synchronously with the knob, which is explained in detail below.

[0044] The side wall of the auxiliary guide block can be in contact with the side wall of the shifting rod, and when the shifting rod is tilted on the guide surface, it can drive the auxiliary guide block to move relative to the reset protrusion.

[0045] The present invention further includes a turntable 50, which can rotate relative to the reset protrusion. The auxiliary guide block is cooperatively connected to the turntable. In one embodiment, the auxiliary guide block can rotate synchronously with the turntable. Under the action of external force, the turntable can rotate synchronously with the knob (or the reset protrusion), or it can rotate non-synchronously with the knob.

[0046] The present invention goes further, the knob includes a base plate 11, the turntable can be rotatably connected to the base plate, the reset protrusion is set on the base plate, the knob, the base plate and the reset protrusion are integrated, the rotation of the knob can be synchronized with the rotation of the base plate and the reset protrusion, and the turntable can rotate synchronously with the knob or not rotate under the application of external force.

[0047] In the first embodiment of the present invention: a connecting groove 12 is provided on the bottom plate, preferably, the connecting groove is an arc-shaped groove, and a limiting protrusion 51 is provided on the turntable, and the limiting protrusion is located in the connecting groove, that is to say: the cooperation between the connecting groove and the limiting protrusion can realize the asynchronous rotation stroke of the auxiliary guide block and the knob. When the rotation angle of the knob reaches the arc angle of the connecting groove, the knob is rotated again. At this time, the auxiliary guide block (which can also be a turntable) will also start to rotate synchronously with the knob.

[0048] In the second embodiment of the present invention: a limiting groove 52 is provided on the circumference of the turntable, preferably, the limiting groove is an arc-shaped groove, and a limiting block 13 is provided on the bottom plate. The cooperation between the limiting block and the limiting groove can limit the angle of rotation of the turntable. As mentioned above, the cooperation between the limiting groove and the limiting block can realize the asynchronous rotation stroke of the auxiliary guide block and the knob. When the rotation angle of the knob reaches the arc angle of the limiting groove, the knob is rotated again. At this time, the auxiliary guide block (or the turntable) will also start to rotate synchronously with the knob. Please refer to the drawings in the specification for details. Figure 13-14 The above-mentioned limiting groove is formed between two protrusions 521 arranged on the outer periphery of the turntable.

[0049] Reference Instructions Figure 3 A pin shaft 14 is provided on the bottom plate, and the turntable is sleeved on the outside of the pin shaft. A connecting hole 15 is provided in the middle of the pin shaft, and a fixing bolt 16 is provided at the connecting hole. The turntable is connected to the knob through the cooperation of the fixing bolt and the connecting hole. When the present invention is in use, the turntable is fixed on the pin shaft and will only rotate along the pin shaft and will not separate from the pin shaft, thereby ensuring the stability of the combination lock when working.

[0050] Preferably, the turntable is arranged in the middle of the base plate, the reset protrusion is located on the outer peripheral side of the turntable, and the auxiliary guide block is located on the inner peripheral side of the reset protrusion. In a preferred embodiment, the pin shaft and the rotation axis of the knob are coaxial, that is to say: the knob, turntable, reset protrusion, and auxiliary guide block can all rotate coaxially.

[0051] In a preferred use of the present invention, the reset surface 31 of the reset protrusion and the support surface 41 of the auxiliary guide block can be simultaneously connected to the lever, which can make the lever tilting process smoother. That is, when the lever cooperates with the reset surface, the lever can also cooperate with the support surface of the auxiliary guide block at the same time to keep the lever in a tilted state. At the same time, when the knob continues to rotate, the lever is separated from the reset surface. At this time, the lever can continue to cooperate with the support surface of the auxiliary guide block to keep the lever in a tilted state.

[0052] Reference Instructions Figure 2 The positioning member includes a rotating shaft 23. The positioning member can rotate relative to the character wheel assembly by tilting after the lever engages the reset protrusion. The rotating shaft is located on the outer periphery of the reset protrusion. In one embodiment of the present invention, one end of the lever is connected to the positioning member, and the other end of the lever can extend to engage with the auxiliary guide block.

[0053] Reference Instructions Figure 3 The lower end of the guide surface is connected to the bottom plate. The guide surface is a curved surface. The height of the curved surface close to one end of the turntable is higher than the height away from the other end of the turntable, which makes it easy to cooperate with the lever to lift it.

[0054] Reference Instructions Figure 4-Figure 6 , which is a schematic diagram of unlocking the password lock, specifically: in the first state, refer to the accompanying drawings of the specification Figure 4 The lever in the figure is located on the right side of the reset protrusion and cooperates with the guide surface on the right side. At this time, the lever is in contact with the right side wall of the auxiliary guide block. When the knob is rotated to the right, the reset protrusion also rotates to the right. Under the action of the guide surface, the other end of the lever begins to tilt upward. At this time, the lever cooperates with the auxiliary guide block so that the auxiliary guide block (which can also be a turntable) rotates relative to the reset protrusion, and the reset protrusion rotates; in the second state, refer to the attached figure of the instruction manual Figure 5At this time, the lever reaches the reset surface under the rotation of the knob. At this time, the auxiliary guide block cooperates with the reset surface of the reset protrusion. At this time, the combination lock completes the reset of the character wheel assembly. Since the rotation of the knob is continuous and the travel of the lever on the reset surface is very short, the auxiliary guide block can effectively compensate for the short travel of the lever on the reset surface. Even if the knob continues to rotate and the lever is separated from the reset surface, the lever can also be supported by the support surface of the auxiliary guide block to ensure that the lever is still in a tilted state, so that the character wheel assembly can be reset. For example, if all four character wheels display "0", the character wheel assembly will not be reset accurately due to inertia. For example, if the four character wheels are limited to "1" or "9" or between "0 to 1" or "0 to 9", when the limit protrusion contacts and cooperates with one end of the connecting groove, the knob is rotated again, and the auxiliary guide block will rotate to the right together with the reset protrusion until the other end of the lever is separated from the support surface of the auxiliary guide block. At this time, refer to the attached figure of the instruction manual. Figure 6 The lever is connected with the guide surface on the left, and the knob continues to rotate to make the lever slide down from the guide surface on the left, completing the unlocking process. At this time, the lever is located on the left side of the auxiliary guide block.

[0055] Reference Instructions Figure 7-Figure 9 , which is a schematic diagram of the lock lock, which is the opposite of the unlocking process, specifically: refer to the attached figure of the specification Figure 7 The lever in the figure is located on the left side of the reset bump and cooperates with the guide surface on the left. When the knob is rotated to the left, the reset bump also rotates to the left. Under the action of the guide surface, the other end of the lever begins to rise. Refer to the attached figure in the manual. Figure 8 At this time, the lever cooperates with the reset surface and the supporting surface of the auxiliary guide block when the knob is turned. When the limit protrusion contacts and cooperates with one end of the connecting groove, turn the knob again, and the auxiliary guide block will rotate to the left together with the reset protrusion until the other end of the lever is separated from the supporting surface of the auxiliary guide block. Refer to the attached figure of the instruction manual. Figure 9 The lever is connected with the guide surface on the right. The continued rotation of the knob causes the lever to slide down from the guide surface on the right, completing the locking process. At this time, it returns to the initial unlocking state, and the lever is located on the right side of the auxiliary guide block.

[0056] The present invention can avoid the problem of the character wheel assembly being stuck because the length of the reset surface is short. In this way, an auxiliary support needs to be added to ensure that the shift rod is in the tilted state for a period of time during continuous rotation, thereby ensuring the accuracy of the reset of the character wheel assembly.

[0057] The foregoing description shows and describes preferred embodiments of the present invention. As previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the inventive concept described herein by the teachings above or by techniques or knowledge in the relevant art. Modifications and variations made by those skilled in the art without departing from the spirit and scope of the present invention are intended to be within the scope of the appended claims.

Claims

1. A reset auxiliary structure for a wheel combination lock, comprising a knob and a wheel assembly that can rotate relative to each other, wherein a cavity for accommodating the wheel assembly is provided in the middle of the knob, characterized in that: The character wheel assembly includes a positioning member, and the positioning member is provided with a shifting rod; A reset protrusion, which can rotate synchronously with the knob, and includes a reset surface and a guide surface that are connected in a mating manner, the guide surface is located beside the reset surface, and the reset surface is located at the highest point of the reset protrusion; An auxiliary guide block, the auxiliary guide block can move relative to the reset protrusion, and the support surface of the auxiliary guide block can be located beside the reset surface; The shifting rod is cooperatively connected with the reset protrusion, and the shifting rod can be tilted through the guide surface and then cooperatively connected with the reset surface and the supporting surface of the auxiliary guide block; The reset protrusion includes a reset surface located at the highest point, and both sides of the reset surface are provided with guide surfaces for driving the lever to tilt up; The side wall of the auxiliary guide block can be in contact with the side wall of the shifting rod, and when the shifting rod is tilted on the guide surface, it can drive the auxiliary guide block to move relative to the reset protrusion.

2. The reset auxiliary structure of a wheel combination lock according to claim 1, characterized in that: It also includes a turntable, which can rotate relative to the reset protrusion, and the auxiliary guide block is cooperatively connected with the turntable.

3. The reset auxiliary structure of a wheel combination lock according to claim 2, characterized in that: The knob includes a bottom plate, the turntable is rotatably connected to the bottom plate, and the reset protrusion is arranged on the bottom plate.

4. The reset auxiliary structure of a wheel combination lock according to claim 3, characterized in that: The bottom plate is provided with a connecting groove, and the turntable is provided with a limiting protrusion, and the limiting protrusion is located in the connecting groove.

5. The reset auxiliary structure of a wheel combination lock according to claim 3, characterized in that: A limiting groove is provided on the circumference of the turntable, and a limiting block is provided on the bottom plate. The cooperation between the limiting block and the limiting groove can limit the rotation angle of the turntable.

6. A reset auxiliary structure for a wheel combination lock according to claim 4 or 5, characterized in that: A pin is provided on the bottom plate, the turntable is sleeved on the outside of the pin, a connecting hole is provided in the middle of the pin, a fixing bolt is provided at the connecting hole, and the turntable is connected to the knob through the cooperation of the fixing bolt and the connecting hole.

7. The reset auxiliary structure of a wheel combination lock according to claim 6, characterized in that: The turntable is arranged in the middle of the bottom plate, the reset protrusion is located on the outer peripheral side of the turntable, and the auxiliary guide block is located on the inner peripheral side of the reset protrusion; the reset surface of the reset protrusion and the supporting surface of the auxiliary guide block can be simultaneously connected to the shift rod.

8. The reset auxiliary structure of a wheel combination lock according to claim 1, characterized in that: The positioning member comprises a rotating shaft, and the positioning member can be tilted and rotated relative to the character wheel assembly after the shifting rod cooperates with the reset protrusion.

9. The reset auxiliary structure of a wheel combination lock according to claim 8, characterized in that: The rotating shaft is located on the outer peripheral side of the reset protrusion; the lower end of the guide surface is cooperatively connected with the bottom plate, and the guide surface is a curved surface.

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