Key mechanical coded lock

Abstract

The key mechanical coded lock comprises a lock shell and code keys, a code changing plate, an unlocking plate, a code clearing plate, an unlocking rotating handle and an unlocking rotating shaft are arranged in the lock shell, a clutch mechanism is arranged between the unlocking rotating handle and the unlocking rotating shaft, key holes are formed in the lock shell, the code keys are located in the key holes, and the code keys are located in the key holes. A code keeping structure is arranged between the code changing plate and the code keys so that the code keys can not rotate to achieve code changing, a decoding mechanism which enables the code changing plate to relieve the code keeping state so that the code keys can rotate to achieve code changing is arranged in the lock shell, and the decoding mechanism comprises a decoding button. A locking mechanism is arranged between the password keys and the unlocking plate, the password keys can be pressed to move to different positions to achieve locking and unlocking of the locking mechanism, and the unlocking plate can enable the unlocking rotating handle and the unlocking rotating shaft to rotate integrally through the clutch mechanism in the unlocking state so as to achieve unlocking. And when the unlocking rotating handle and the unlocking rotating shaft rotate integrally, the code clearing plate can be pushed to move, so that the code keys are reset.

Description

Technical Field

[0001] The invention relates to a lock, in particular to a key-operated mechanical password lock. Background Art

[0002] At present, password locks are widely available in the market due to their convenient operation and good anti-theft effect. However, ordinary electronic password locks need battery power to work normally, so many mechanical password locks have appeared in the market (patent number: CN200920008462, patent name: intelligent mechanical password lock cylinder). However, the above mechanical password locks are unlocked by pressing a button combined with a movable plate, a stepping hook and a positioning hook. Not only is the structure complicated, but also the volume is large. In addition, the password change requires the code change key and the code change shaft to drive the removal pull plate to move to achieve the code change. The above structure cannot change the code in the front and the code change process is troublesome.

[0003] Therefore, the applicant has designed a key-operated mechanical password lock to solve the above problems. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a key-operated mechanical password lock.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A key-operated mechanical password lock, characterized in that it comprises a lock shell and a password button, wherein a code change plate, an unlocking plate, a code clearing plate, an unlocking handle and an unlocking shaft are arranged in the lock shell, a clutch mechanism is arranged between the unlocking handle and the unlocking shaft, a key hole is arranged on the lock shell, the password button is located in the key hole, a password holding structure is arranged between the code change plate and the password button so that the password button cannot be rotated to achieve code change, a decoding mechanism is arranged in the lock shell to release the password holding state of the code change plate so that the password button can be rotated to change the code, and the decoding mechanism comprises a decoding button; a locking mechanism is arranged between the password button and the unlocking plate, the password button can be moved to different positions by pressing to achieve locking and unlocking of the locking mechanism, and the unlocking plate can make the unlocking handle and the unlocking shaft rotate together through the clutch mechanism in the unlocking state to achieve unlocking, and when the unlocking handle and the unlocking shaft rotate together, they can push the code clearing plate to move to reset the password button.

[0007] The password holding structure includes a code change slot arranged on the password button, a code change protrusion arranged on the code change plate and capable of being inserted into the code change slot, an elastic member is arranged between the code change plate and the lock shell, and the code change plate enables the code change protrusion to be inserted into the code change slot through the elastic member.

[0008] The decoding mechanism includes a decoding hole provided on the lock shell, the decoding button is located in the decoding hole, the code change plate is provided with a code change hole, the end of the decoding button is located in the code change hole, and the end is provided with an extrusion surface. When the decoding button is pressed, the extrusion surface squeezes the hole wall of the code change hole to move the code change plate so that the code change protrusion escapes from the code change groove, and an elastic member 2 is provided between the decoding button and the lock shell so that the decoding button can be reset after being pressed.

[0009] The locking mechanism includes a code surface and a non-code surface on the password button, both the code surface and the non-code surface are provided with locking holes, the unlocking plate is provided with a locking protrusion that can be inserted into the locking hole, the position of the locking hole of the code surface is higher than the position of the locking hole of the non-code surface from the bottom surface of the password button, an elastic member three is provided between the unlocking plate and the lock shell, and the unlocking plate enables the locking protrusion to be inserted into the locking hole through the elastic member three.

[0010] The clutch mechanism includes an axial hole arranged on the unlocking handle and a sliding hole passing through the axial hole, a rotating shaft arranged on the unlocking shaft and a clamping groove arranged on the rotating shaft, a clutch plate and an elastic member four capable of keeping the clutch plate away from the clamping groove. The clutch plate is located in the sliding hole and the end of the clutch plate is provided with a clamping end capable of clamping with the clamping groove. The unlocking plate can be pushed by the elastic member three to squeeze the clutch plate so that the clamping end is clamped with the clamping groove, thereby allowing the unlocking handle and the unlocking shaft to rotate as a whole.

[0011] A V-shaped notch is provided on the unlocking handle, a V-shaped end is provided at the end of the unlocking plate, and the sliding hole is connected with the V-shaped notch, so that when the V-shaped end is inserted into the V-shaped notch, the clutch plate can be pushed to make the card slot and the card connection end engage.

[0012] The clutch plate is provided with a mounting hole, the sliding hole is provided with a protrusion located in the mounting hole, one end of the elastic member 4 abuts against the protrusion and the other end of the elastic member 4 abuts against the hole wall of the mounting hole.

[0013] It also includes a zeroing turn plate fixed to the unlocking turn handle, one side surface wall of the sliding hole is composed of the plate surface of the zeroing turn plate, and the zeroing turn plate is provided with a pushing surface. When the unlocking turn handle is rotated, the pushing surface can squeeze the clearing plate to move and reset the password button.

[0014] The code clearing plate is provided with a wedge-shaped block, and the inclined surface of the wedge-shaped block can be inserted into the bottom surface of the password key to lift and reset the password key.

[0015] An upper arc groove and a lower arc groove are arranged on the password button, and a spring piece capable of respectively engaging with the upper arc groove and the lower arc groove is arranged in the lock shell.

[0016] The beneficial effects of the present invention are as follows: the present invention utilizes the different high and low positions of the password button after being pressed to realize unlocking and locking, providing a new unlocking method, which not only simplifies the structure and assembly, but also does not require the cooperation of a code changing key and a code changing shaft when changing the password. It adopts a button-type code changing, which is not only simple but also convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is the overall structural view of the present invention;

[0019] Figure 2 This is a view of the internal structure of the hidden lock housing of the present invention;

[0020] Figure 3 It is a structural view of the hidden shell of the present invention;

[0021] Figure 4 It is the overall structural view of the shrapnel;

[0022] Figure 5 is an exploded structural view of the present invention;

[0023] Figure 6 It is a structural view of the lock housing;

[0024] Figure 7 This is a structural view of the unlocking handle;

[0025] Figure 8 This is the structural view of the password button. DETAILED DESCRIPTION

[0026] The advantages and features of the present disclosure and its implementation methods will be explained by the following embodiments described with reference to the accompanying drawings. However, the present disclosure can be embodied in different forms and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure will be comprehensive and complete, and will fully convey the scope of the present disclosure to those skilled in the art. In addition, the present disclosure is limited only by the scope of the claims.

[0027] The shapes, sizes, ratios, angles and numbers disclosed in the drawings for describing the embodiments of the present disclosure are only examples, and therefore the present disclosure is not limited to the details shown. Throughout this specification, the same reference numerals refer to the same elements. In the following description, when the detailed description of the relevant known functions or configurations is determined to be unnecessary to blur the focus of the present disclosure, the detailed description will be omitted. In the case of using "including", "having" and "comprising" described in this specification, other parts may be added unless "only" is used. Unless otherwise indicated, the terms in the singular may include plural forms.

[0028] When explaining an element, although not explicitly described, the element is understood to include a range of error.

[0029] When describing a positional relationship, for example, when the positional relationship is described as "on," "above," "below," and "adjacent to," unless "immediately" or "directly" is used, one or more parts may be arranged between two other parts.

[0030] When describing a time relationship, for example, when a time sequence is described as “after,” “subsequently,” “next,” and “before,” discontinuous cases may be included unless “just” or “directly” is used.

[0031] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from other elements. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present disclosure.

[0032] As those skilled in the art can fully understand, the features of the different embodiments of the present disclosure can be coupled or combined with each other in part or in whole, and can cooperate with each other in various ways and be driven technically. The embodiments of the present disclosure can be performed independently of each other, or can be performed together in a mutually dependent relationship.

[0033] Reference Figures 1 to 8 The present invention discloses a key mechanical password lock, including a lock shell 1 and a password key 2. A code change plate 3, an unlocking plate 4, a code clearing plate 5, an unlocking handle 6 and an unlocking shaft 7 are arranged in the lock shell 1. The lock shell 1 is a square shell and includes a bottom plate. A clutch mechanism is arranged between the unlocking handle 6 and the unlocking shaft 7. A key hole 8 is arranged on the lock shell 1. The password key 2 is located in the key hole 8. A password holding structure is arranged between the code change plate 3 and the password key 2 so that the password key 2 cannot rotate to realize code change. A decoding mechanism is arranged in the lock shell 1 to release the password holding state of the code change plate 3. Thereby, the password button 2 can be rotated to change the code; a locking mechanism is provided between the password button 2 and the unlocking plate 4, and the password button 2 can be moved to different positions by pressing to realize locking and unlocking of the locking mechanism. In the unlocking state, the unlocking plate 4 can make the unlocking handle 6 and the unlocking shaft 7 rotate together through the clutch mechanism to realize unlocking, and when the unlocking handle 6 and the unlocking shaft 7 rotate together, they can push the code clearing plate 5 to move and reset the password button 2. It is a conventional technology to realize the rotatable installation of the unlocking handle 6 and the unlocking shaft 7 in the lock shell 1, so it is not described in detail.

[0034] The principle of the above structure is that this push-button mechanical password lock needs to be used in conjunction with the lock core. Because the lock core is a conventional lock, the specific structure is not described in detail. The unlocking shaft 7 is connected to the branch of the lock core, so that when the unlocking shaft 7 rotates, it can drive the branch to rotate to achieve unlocking and locking of the lock core. In this application, regardless of the unlocking state or the locking state, a password holding structure is provided between the code change plate 3 and the password button 2 so that the password button 2 cannot be rotated to achieve code change. Only after being released by the decoding mechanism can the password button 2 be rotated to change the code. When locked, the password button 2 is in a high position. At this time, the password button 2 and the unlocking plate 4 are locked by the locking mechanism, and the unlocking handle 6 and the unlocking shaft 7 are separated by the clutch mechanism. The unlocking plate 4 cannot use the clutch mechanism to make the unlocking handle 6 and the unlocking shaft 7 rotate as a whole to achieve unlocking. When unlocking, the user presses the password button 2 to a low position. At this time When the lock is unlocked, the unlocking plate 4 rotates the unlocking handle 6 and the unlocking shaft 7 together through the clutch mechanism to achieve unlocking. When unlocking, the unlocking handle 6 and the unlocking shaft 7 rotate together to push the code clearing plate 5 to move and make the password button 2 return to the high position, which is convenient for pressing the unlocking button next time. At the same time, the unlocking plate 4 also returns to its position. When locking, the unlocking handle 6 and the unlocking shaft 7 rotate in the opposite direction to reset. At this time, the clutch mechanism will return to its original state, separating the unlocking handle 6 and the unlocking shaft 7. At this time, the unlocking handle 6 can only rotate idly but cannot drive the unlocking shaft 7 to rotate, so it cannot be unlocked.

[0035] When it is necessary to change the code, press the decoding button 9, and the decoding mechanism releases the code change plate 3 from the password holding state. At this time, the password button 2 can be rotated 180 degrees. Because the password button 2 has two sides, the coded side 10 and the relatively set non-coded side 11, the user can choose whether the password button 2 is associated with the unlocking plate 4. When the coded side 10 is in the locking position, the locking mechanism takes effect, which is an associated state. When the non-coded side 11 is in the locking position, the locking mechanism does not work, which is an unassociated state. The password is set by selecting the above states. For example, there are twelve password buttons 2 with sequential numbering. If the user chooses password buttons 2 numbered 1, 2, and 3 to be associated with the unlocking plate 4, then these three password buttons 2 are the passwords. When unlocking, the password buttons 2 numbered 1, 2, and 3 must be pressed down to the low position to unlock. Pressing other password buttons 2 has no effect.

[0036] As shown in the figure, the password holding structure includes a code change slot 12 arranged on the password button 2, and a code change protrusion 13 arranged on the code change plate 3 and capable of being inserted into the code change slot 12. In the present application, the code change slot 12 is relatively arranged. Regardless of whether the password button 2 is associated with the unlocking plate 4, after the code change is completed, the code change protrusion 13 can be inserted into the corresponding code change slot 12, so that the password button 2 cannot rotate, but can be raised and lowered along the code change slot 12 to achieve high or low position conversion. 3 is provided with two rows of code-changing plate holes with notches, the code-changing protrusion 13 is arranged on the inner wall of the code-changing plate hole and the password button 2 is also located in the code-changing plate hole, an elastic member 1 (not shown in the figure) is provided between the code-changing plate 3 and the lock shell 1, and the code-changing plate 3 makes the code-changing protrusion 13 snap into the code-changing groove 12 through the elastic member 1, and the elastic member 1 is a spring, which is a commonly used component, so how to install the spring so that the code-changing protrusion 13 snaps into the code-changing groove 12 is a conventional technology, and therefore it is not described in detail.

[0037] As shown in the figure, the decoding mechanism includes a decoding button 9, a decoding hole 14 is provided on the lock shell 1, the decoding button 9 is located in the decoding hole 14, a code change hole 15 is provided on the code change plate 3, the end of the decoding button 9 is located in the code change hole 15, and the end is provided with an extrusion surface 16. When the decoding button 9 is pressed, the extrusion surface 16 squeezes the hole wall of the code change hole 15 to move the code change plate 3 so that the code change protrusion 13 escapes from the code change groove 12 so that the password key 2 can be rotated to achieve code change. An elastic member 2 (not shown in the figure) is provided between the decoding button 9 and the lock shell 1 so that the decoding button 9 can reset after being pressed. The elastic member 2 is a spring, which is a commonly used component. Therefore, how to install the spring to reset the decoding button 9 is a conventional technology and is not described in detail.

[0038] As shown in the figure, the locking mechanism includes a code surface 10 and a non-code surface 11, and the code surface 10 and the non-code surface 11 are both provided with locking holes 17, and the unlocking plate 4 is provided with a locking protrusion 18 that can be inserted into the locking hole 17. The unlocking plate 4 is provided with two rows of unlocking plate holes with notches, and the locking protrusion 18 is arranged on the inner wall of the unlocking plate hole and the password button 2 is also located in the unlocking plate hole. The position of the locking hole 17 of the code surface 10 is higher than the position of the locking hole 17 of the non-code surface 11 from the bottom surface of the password button 2. An elastic member three (not shown in the figure) is provided between the unlocking plate 4 and the lock shell 1, and the unlocking plate 4 makes the locking protrusion 18 inserted into the locking hole 17 through the elastic member three. The elastic member three is a spring, which is a commonly used component. Therefore, how to install the spring to make the locking protrusion 18 inserted into the locking hole 17 is a conventional technology and will not be described in detail. When in the locked state, all the password buttons 2 are in the high position, but only the coding surface 10 of the coded password button 2 faces the locking protrusion 18, so the position of the locking hole 17 on the coding surface 10 is also higher than the position of the locking protrusion 18, and the password button 2 without the code has the non-coding surface 11 facing the locking protrusion 18, so the position of the locking hole 17 on the non-coding surface 11 is flush with the position of the locking protrusion 18, so the locking protrusion 18 cannot be inserted into the locking hole 17 of the coding surface 10 on the coded password button 2, thereby failing to unlock. After pressing the coded password button 2, when the above-mentioned password button 2 is in the low position, the position of the locking hole 17 is just opposite to the locking protrusion 18, so the unlocking plate 4 can make the locking protrusion 18 inserted into the locking hole 17 through the elastic member 3 and is in the unlocked state.

[0039] As a preferred structure, a limit protrusion 19 is provided on the password button 2, and a positioning block 20 is provided on the lock housing 1 which can abut against the limit protrusion 19, thereby limiting the rotation angle of the password button 2 by the user when changing the code, preventing the user from excessively rotating and losing the position of the coded surface 10 and the non-coded surface 11.

[0040] As shown in the figure, the clutch mechanism includes an axial hole 21 provided on the unlocking handle 6 and a sliding hole 22 penetrating the axial hole 21, a rotating shaft 23 provided on the unlocking rotating shaft 7 and a clamping groove 24 provided on the rotating shaft 23, a clutch plate 25 and an elastic member 26 capable of keeping the clutch plate 25 away from the clamping groove 24. The clutch plate 25 is located in the sliding hole 22 and the end of the clutch plate 25 is provided with a clamping end 27 capable of clamping with the clamping groove 24. The unlocking plate 4 can be clamped by the elastic member The clutch plate 25 is pushed by the third part to make the engaging end 27 engage with the engaging groove 24, so that the unlocking handle 6 and the unlocking shaft 7 rotate integrally. Because the elastic force of the elastic member three is greater than the elastic force of the elastic member four 26, when the password button 2 is in the unlocking state at the low position, the locking protrusion 18 can be engaged with the locking hole 17, so that the unlocking plate 4 can move and at the same time squeeze the clutch plate 25 to make the engaging end 27 engage with the engaging groove 24, so that the unlocking handle 6 and the unlocking shaft 7 rotate integrally to achieve unlocking.

[0041] As a preferred structure, a mounting hole 28 is provided on the clutch plate 25, a protrusion 29 located in the mounting hole 28 is provided in the sliding hole 22, one end of the elastic member 26 abuts against the protrusion 29 and the other end of the elastic member 26 abuts against the hole wall of the mounting hole 28. The above structure is relatively compact and saves space.

[0042] As shown in the figure, a V-shaped notch 30 is provided on the unlocking handle 6, and a V-shaped end 31 is provided at the end of the unlocking plate 4. The sliding hole 22 is connected with the V-shaped notch 30, so that the V-shaped end 31 can push the clutch plate 25 when it is inserted into the V-shaped notch 30 to make the card slot 24 and the card connection end 27 engage. When the unlocking handle 6 is unlocked, it can squeeze the V-shaped end 31 through the V-shaped notch 30 to make the unlocking plate 4 squeeze the elastic member three and gradually withdraw, so that the locking protrusion 2918 withdraws from the locking hole 17.

[0043] As shown in the figure, it also includes a zeroing rotating plate 32 fixed to the unlocking turning handle 6. One side wall of the sliding hole 22 is composed of the plate surface of the zeroing rotating plate 32. Such a structure is convenient for installing the clutch plate 25, and a pushing surface 33 is provided on the zeroing rotating plate 32. The pushing surface 33 is a plane. When the unlocking turning handle 6 is unlocked and rotated, the end surface of the clearing plate 5 can be squeezed by the pushing surface 33 to move the code key 2 back to the high position. There is a hole on the zeroing rotating plate 32, and the rotating shaft can pass through the hole. Specifically, a wedge block 34 is provided on the clearing plate 5. The wedge blocks 34 have several divided into two rows and are evenly distributed on the clearing plate 5. The inclined surface of the wedge block 34 can be gradually inserted into the bottom surface of the code key 2 and gradually approach the code key 2. When the locking protrusion 18 completely withdraws from the locking hole 17, the inclined surface of the wedge block 34 lifts the code key 2 to reset.

[0044] As shown in the figure, the password button 2 is provided with an upper arc groove 35 and a lower arc groove 36, and the lock shell 1 is provided with a spring piece 37 that can be respectively engaged with the upper arc groove 35 and the lower arc groove 36. In order to simplify the installation, the spring pieces 37 are all arranged on the spring piece frame, so that when the spring piece 37 is engaged with the upper arc groove 35, the password button 2 can be kept in a low position, and when the spring piece is engaged with the lower arc groove 36, the password button 2 can be kept in a high position, and the upper arc groove 35 and the lower arc groove 36 of the password button 2 of the present application are relatively arranged, and the upper arc groove 35 and the lower arc groove 36 on one side of the password button 2 can be engaged with the spring piece 37 when the password button 2 is in the coding state, and the upper arc groove 35 and the lower arc groove 36 on the other side can be engaged with the spring piece 37 when the password button 2 is in the non-coding state.

[0045] The above is a detailed introduction to a key-operated mechanical password lock provided by an embodiment of the present invention. Specific examples are used in this article to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A key mechanical password lock, characterized in that: The invention comprises a lock shell and a password button, wherein a code change plate, an unlocking plate, a code clearing plate, an unlocking handle and an unlocking shaft are arranged in the lock shell, a clutch mechanism is arranged between the unlocking handle and the unlocking shaft, a key hole is arranged on the lock shell, the password button is located in the key hole, a password holding structure is arranged between the code change plate and the password button so that the password button cannot be rotated to change the code, a decoding mechanism is arranged in the lock shell so that the code change plate releases the password holding state so that the password button can be rotated to change the code, the decoding mechanism comprises a decoding button; a locking mechanism is arranged between the password button and the unlocking plate, the password button can be moved to different positions by pressing to realize locking and unlocking of the locking mechanism, and the unlocking plate can make the unlocking handle and the unlocking shaft rotate together through the clutch mechanism in the unlocking state to realize unlocking, and when the unlocking handle and the unlocking shaft rotate together, they can push the code clearing plate to move to reset the password button.

2. A key-operated mechanical password lock according to claim 1, characterized in that: The password holding structure includes a code change slot arranged on the password button, a code change protrusion arranged on the code change plate and capable of being inserted into the code change slot, an elastic member is arranged between the code change plate and the lock shell, and the code change plate enables the code change protrusion to be inserted into the code change slot through the elastic member.

3. A key-operated mechanical password lock according to claim 2, characterized in that: The decoding mechanism includes a decoding hole provided on the lock shell, the decoding button is located in the decoding hole, the code change plate is provided with a code change hole, the end of the decoding button is located in the code change hole, and the end is provided with an extrusion surface. When the decoding button is pressed, the extrusion surface squeezes the hole wall of the code change hole to move the code change plate so that the code change protrusion escapes from the code change groove, and an elastic member 2 is provided between the decoding button and the lock shell so that the decoding button can be reset after being pressed.

4. A key-operated mechanical password lock according to claim 1, characterized in that: The locking mechanism includes a code surface and a non-code surface on the password button, both the code surface and the non-code surface are provided with locking holes, the unlocking plate is provided with a locking protrusion that can be inserted into the locking hole, the position of the locking hole of the code surface is higher than the position of the locking hole of the non-code surface from the bottom surface of the password button, an elastic member three is provided between the unlocking plate and the lock shell, and the unlocking plate enables the locking protrusion to be inserted into the locking hole through the elastic member three.

5. A key-operated mechanical password lock according to claim 4, characterized in that: The clutch mechanism includes an axial hole arranged on the unlocking handle and a sliding hole passing through the axial hole, a rotating shaft arranged on the unlocking shaft and a clamping groove arranged on the rotating shaft, a clutch plate and an elastic member four capable of keeping the clutch plate away from the clamping groove. The clutch plate is located in the sliding hole and the end of the clutch plate is provided with a clamping end capable of clamping with the clamping groove. The unlocking plate can be pushed by the elastic member three to squeeze the clutch plate so that the clamping end is clamped with the clamping groove, thereby allowing the unlocking handle and the unlocking shaft to rotate as a whole.

6. A key-operated mechanical password lock according to claim 5, characterized in that: A V-shaped notch is provided on the unlocking handle, a V-shaped end is provided at the end of the unlocking plate, and the sliding hole is connected with the V-shaped notch, so that when the V-shaped end is inserted into the V-shaped notch, the clutch plate can be pushed to make the card slot and the card connection end engage.

7. A key-operated mechanical password lock according to claim 5, characterized in that: The clutch plate is provided with a mounting hole, the sliding hole is provided with a protrusion located in the mounting hole, one end of the elastic member 4 abuts against the protrusion and the other end of the elastic member 4 abuts against the hole wall of the mounting hole.

8. A key-operated mechanical password lock according to claim 5, characterized in that: It also includes a zeroing turn plate fixed to the unlocking turn handle, one side surface wall of the sliding hole is composed of the plate surface of the zeroing turn plate, and the zeroing turn plate is provided with a pushing surface. When the unlocking turn handle is rotated, the pushing surface can squeeze the clearing plate to move and reset the password button.

9. A key-operated mechanical password lock according to claim 5, characterized in that: The code clearing plate is provided with a wedge-shaped block, and the inclined surface of the wedge-shaped block can be inserted into the bottom surface of the password key to lift and reset the password key.

10. A key-operated mechanical password lock according to claim 1, characterized in that: An upper arc groove and a lower arc groove are arranged on the password button, and a spring piece capable of respectively engaging with the upper arc groove and the lower arc groove is arranged in the lock shell.

Images