Code-changeable key password padlock

Abstract

According to the key password padlock capable of changing the password, the lock beam is pushed out of the shell through vertical pushing of the movable plate, unlocking and locking are conducted in this way, the limiting protrusion on the pressing column can play a role in stopping the movable plate from moving, and if no password is input (the pressing column is not pressed), unlocking is not conducted. The limiting protrusions correspond to the limiting protrusions on the movable plate, so that the movable plate is prevented from moving, after a password is input, the limiting protrusions and the limiting protrusions on the movable plate are staggered, and at the moment, the movable plate can move up and down to conduct unlocking operation. The whole structure is simple, and the function of the lock body is achieved mainly through cooperation of the movable plate and the pressing column.

Description

Technical Field

[0001] The utility model relates to the technical field of padlocks, in particular to a code-changeable key-press password padlock. Background Art

[0002] The padlock comprises a shell, a U-shaped lock beam is connected to the shell, one end of the lock beam is rotatably connected to the shell, and the other end of the lock beam is plugged and matched with the lock shell. The lock beam can move along its opening direction to realize the opening and closing of the lock.

[0003] On August 6, 2021, the applicant applied for a patent named "Button-type changeable mechanical password lock" with patent number CN202110504526.3.

[0004] The above patents are prior art that is relatively close to this application and are provided for reference only.

[0005] The key-operated mechanical password lock disclosed in the above patent has a complex structure. Based on this, the applicant has made improvements and developed a key-operated password padlock with a relatively simpler structure. Utility Model Content

[0006] In view of the problems pointed out in the background technology, the utility model provides a code-changeable key combination padlock with a relatively simpler structure.

[0007] The technical solution of the utility model is achieved in this way:

[0008] A code-changeable keypadlock comprises a shell with an opening at the front side, a cover body is arranged on the opening side of the shell, a U-shaped lock beam is connected to the upper side of the shell, and two connection holes are arranged on the upper side of the shell to connect to the two ends of the lock beam.

[0009] A movable plate is provided in the shell, and the movable plate can move in the up and down direction. A pushing part is provided on the lower side of the movable plate, and a hole for the pushing part to pass through is provided on the shell. One end of the locking beam is connected to the upper side of the movable plate, and a top column corresponding to the other end of the locking beam is provided on the upper side of the movable plate;

[0010] A spring 1 is provided in the shell, a placement groove for installing the spring is provided at the bottom of the shell, the placement groove is arranged in the up-down direction, the spring 1 is installed in the placement groove, a through groove penetrating the placement groove is provided in the shell, the through groove is arranged in the up-down direction, a through bar 11 is provided on the movable plate and is slidably connected to the through groove, the through bar 11 is composed of an upper and lower section, and the upper and lower sections of the through bar are respectively located in the through grooves on the upper and lower sides of the placement groove;

[0011] The bottom of the shell is provided with a mounting groove opened forward, the movable plate is provided with a notch corresponding to the mounting groove, a pressing column is connected in the mounting groove, the pressing column is rotatably connected to the mounting groove, and the pressing column is slidably connected to the mounting groove in the front-rear direction;

[0012] The cover body is provided with a button hole for the front end of the pressing column to pass through;

[0013] A limiting protrusion is provided on the side wall of the pressing column;

[0014] A limiting protrusion is provided on the side wall of the notch, and when the limiting protrusion corresponds to the restricting protrusion, the movable plate can be prevented from moving;

[0015] A notch is provided on the side wall of the installation groove, and the notch is opened upward. A reset handle is provided on the side wall of the notch. When the movable plate moves downward, the reset handle enters the bottom of the installation groove from the notch to lift the pressing column in the installation groove. The thickness of the reset handle is gradually thickened from bottom to top.

[0016] There are multiple installation slots.

[0017] The utility model is further configured that the limiting protrusion includes limiting protrusion one and limiting protrusion two, limiting protrusion one and limiting protrusion two are arranged at intervals in the axial direction of the pressing column, and limiting protrusion one and limiting protrusion two are arranged at intervals in the circumferential direction of the pressing column.

[0018] The utility model is further configured such that a pressing cap is connected to the front end of the pressing column, and the pressing cap is fixedly connected to the pressing column in the circumferential direction of the pressing column, a locking protrusion is provided on the side wall of the pressing cap, the locking protrusion is located on the inner side of the cover body, and a locking groove connected to the locking protrusion is provided on the inner side surface of the cover body; in the axial direction of the pressing column, a spring 2 is provided between the pressing cap and the pressing column.

[0019] The utility model is further configured such that a center hole penetrating through the front and rear sides of the pressing column is provided at the center of the pressing column, a center column connected to the center hole is provided at the bottom of the mounting groove, one end of the second spring abuts against the center column, and the other end of the second spring abuts against the pressing cap.

[0020] The utility model is further configured that an operating groove is provided on the front end surface of the pressing cap.

[0021] The utility model is further configured such that, in the circumferential direction of the pressing column, the angle between the first limiting protrusion and the second limiting protrusion is 180 degrees, and the locking protrusion is correspondingly arranged with the first limiting protrusion.

[0022] The utility model is further configured that an annular anti-slip ring is provided on the side wall of the pressing cap, the locking protrusion is arranged on the anti-slip ring, and the diameter of the anti-slip ring is greater than the diameter of the button hole.

[0023] The utility model is further configured that two springs are provided, and the two springs are respectively arranged on the left and right sides of the housing.

[0024] The utility model is further configured that the bottom of the shell is provided with a sliding groove which is slidably matched with the reset push handle.

[0025] The utility model is further configured that a decorative cover plate is provided on the outer side of the cover body.

[0026] By adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0027] The utility model provides a password padlock with a changeable code, which pushes the lock beam out of the housing by pushing the movable plate up and down, so as to open and close the lock, and the limiting protrusion on the pressing column can play a role in blocking the movement of the movable plate. If the password is not entered (the pressing column is not pressed), the limiting protrusion corresponds to the limiting protrusion on the movable plate, so as to prevent the movement of the movable plate. After the password is entered, the limiting protrusion is misaligned with the limiting protrusion on the movable plate, and the movable plate can move up and down to perform the unlocking operation. The overall structure is simple, and the function of the lock body is mainly realized by the cooperation of the movable plate and the pressing column. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0029] Figure 1 It is a schematic diagram of the exploded structure of the decorative cover plate of the utility model.

[0030] Figure 2 The structure diagram of the cover body of the utility model is shown as follows: Figure 1 .

[0031] Figure 3 The structure diagram of the cover body of the utility model is shown as follows: Figure 2 .

[0032] Figure 4 It is a schematic diagram of the structure in which the cover of the utility model is hidden.

[0033] Figure 5 It is an exploded schematic diagram of the movable plate, the pressing column and the pressing cap of the utility model.

[0034] Figure 6 It is a structural schematic diagram of the movable plate, the pressing column and the pressing cap of the utility model.

[0035] Figure 7 It is a schematic diagram of the internal structure of the shell of the utility model.

[0036] Figure 8It is a structural schematic diagram of the movable plate and the locking beam of the utility model.

[0037] Fig. 9 It is a structural schematic diagram of the pressing column and the pressing cap of the utility model.

[0038] Fig.10 It is an exploded schematic diagram of the pressing column and the pressing cap of the utility model.

[0039] Fig.11 It is a cross-sectional view of the pressing column and the pressing cap of the utility model.

[0040] Fig.12 It is a cross-sectional view of the utility model.

[0041] Explanation of the numbers in the accompanying drawings: shell 1, cover body 2, lock beam 3, connecting hole 4, movable plate 5, pushing part 6, top column 7, spring one 8, installation groove 9, through groove 10, through strip 11, placement groove 12, notch 13, pressing column 14, key hole 15, limiting protrusion 16, notch 17, reset push handle 18, limiting protrusion one 191, limiting protrusion two 192, pressing cap 20, locking protrusion 21, locking groove 22, spring two 23, center hole 24, center column 25, operating groove 26, anti-slip ring 27, sliding groove 28, decorative cover plate 29. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] For reference Figure 1-12 The utility model is described as follows:

[0044] Embodiment 1: A code-changeable button password padlock comprises a shell 1 with an opening on the front side, a cover body 2 is provided on the open side of the shell 1, the cover body 2 is detachably connected to the shell 1, a U-shaped lock beam 3 is connected to the upper side of the shell 1, and two connecting holes 4 connected to the two ends of the lock beam 3 are provided on the upper side surface of the shell 1, the two connecting holes 4 are respectively located on the left and right sides of the shell 1, the connecting holes 4 are connected to the interior of the shell 1, and the two ends of the lock beam 3 enter the shell 1 through the two connecting holes 4.

[0045] A movable plate 5 is provided in the housing 1, and the movable plate 5 can move in the up-down direction. In the left-right direction, the movable plate 5 is restricted by the left and right side walls of the housing 1. In the front-back direction, the movable plate 5 is restricted by the housing and the cover 2.

[0046] A push part 6 is provided at the lower side of the movable plate 5 . The push part 6 is in an elongated strip shape and is arranged in the up-down direction. A hole 601 for the push part 6 to pass through is provided on the shell 1 . The movable plate 5 is driven to move by the push part 6 .

[0047] One end of the lock beam 3 is connected to the upper side of the movable plate 5, and a connecting groove 501 is provided on the movable plate 5. One end of the lock beam 3 is connected to the connecting groove 501. In the up and down directions, the lock beam 3 is fixedly connected to the movable plate 5, and one end of the lock beam 3 forms a rotational connection with the connecting groove 501, so that the lock beam 3 can rotate.

[0048] A top column 7 corresponding to the other end of the lock beam 3 is disposed on the upper side of the movable plate 5 . The other end of the lock beam 3 enters into the housing 1 and abuts against the top column 7 .

[0049] When unlocking, the movable plate 5 moves upward to push the other end of the lock beam 3 out of the housing 1, so that the lock beam 3 can be in an unlocked state and can be rotated.

[0050] A spring 8 is provided in the housing 1. A placement groove 12 for installing the spring 8 is provided at the bottom of the housing 1. There are two placement grooves 12. The two placement grooves 12 are respectively arranged on the left and right sides of the housing 1. The placement grooves 12 are arranged in the up-down direction. The placement grooves 12 are arranged in the middle position of the up-down direction of the housing 1. The spring 8 is installed in the placement groove 12. A through groove 10 penetrating the placement groove 12 is provided in the housing 1. The through groove 10 is arranged corresponding to the placement groove 12. The through groove 10 is arranged in the up-down direction. A through bar 11 slidably connected to the through groove 10 is provided on the rear side surfaces on the left and right sides of the movable plate 5. The through bar 11 is composed of two upper and lower sections. The upper and lower sections of the through bar 11 are respectively located in the through groove 10 on the upper and lower sides of the placement groove 12. By adopting the above technical solution, when the movable plate 5 moves up and down, the spring 8 will be compressed by the upper and lower sections of the through bar, and can be reset under the action of the compressed spring 8.

[0051] The spring 1 8 provided in the above technical solution can compress the spring 1 8 whether the movable plate 5 moves upward or downward, and return to the original position under the action of the spring 1 8.

[0052] The bottom of the housing 1 is provided with a mounting groove 9 which is opened forward, and the movable plate 5 is provided with a notch 13 corresponding to the mounting groove 9 . There are multiple mounting grooves 9 , and there are multiple corresponding notches 13 . This is equivalent to the mounting groove 9 being located in the notch 13 .

[0053] A pressing column 14 is connected in the mounting groove 9, and the pressing column 14 is rotatably connected to the mounting groove 9, and the pressing column 14 is slidably connected to the mounting groove 9 in the front-back direction. A key hole 15 is provided on the cover body 2 for the front end of the pressing column 14 to pass through. The pressing column 14 is pressed by fingers.

[0054] A limiting protrusion is provided on the side wall of the pressing column 14, and the limiting protrusion includes a limiting protrusion 191 and a limiting protrusion 2 192. The limiting protrusion 191 and the limiting protrusion 2 192 are arranged at intervals in the axial direction of the pressing column 14, and the limiting protrusion 191 and the limiting protrusion 2 192 are arranged at intervals in the circumferential direction of the pressing column 14. In the circumferential direction of the pressing column 14, the angle between the limiting protrusion 191 and the limiting protrusion 2 192 is 180 degrees. The positions of the limiting protrusion 191 and the limiting protrusion 2 192 are switched by rotating the pressing column 14 180 degrees.

[0055] A limiting protrusion 16 is provided on the right side wall of the notch 13 , and when the limiting protrusion 16 corresponds to the restricting protrusion, the movable plate 5 can be prevented from moving.

[0056] The pressing column 14 moves forward and backward, so that the limiting protrusion and the limiting protrusion 16 can be switched between the corresponding state and the misaligned state.

[0057] The pressing post 14 rotates to switch the limiting protrusion 1 191 or the limiting protrusion 2 192 to correspond to the limiting protrusion 16 .

[0058] The pressing column 14 has a coding state and a non-coding state.

[0059] In the coding state, the limiting protrusion 191 corresponds to the limiting protrusion 16. In the initial state, the limiting protrusion 191 corresponds to the limiting protrusion 16, and the movable plate 5 is blocked by the limiting protrusion 191, and the movable plate 5 cannot move upward, so it cannot be unlocked. After pressing the pressing column 14 in the coding state, the pressing column 14 moves backward, and the limiting protrusion 191 is misaligned with the limiting protrusion 16. At this time, the movable plate 5 can be pushed upward to push the lock beam 3 out of the housing to achieve unlocking.

[0060] In the uncoded state, the second limiting protrusion 192 corresponds to the limiting protrusion 16. In the initial state, the second limiting protrusion 192 is misaligned with the limiting protrusion 16, and the movable plate 5 can be pushed upward to unlock. After pressing the pressing column 14 in the coded state, the pressing column 14 moves backward, and the second limiting protrusion 192 corresponds to the limiting protrusion 16. At this time, the movable plate 5 is blocked by the second limiting protrusion 192, and the movable plate 5 cannot move upward, so it cannot be unlocked.

[0061] The above-mentioned initial state is a state where the pressing column 14 is pushed forward.

[0062] Therefore, you can set the number of digits and the password as needed.

[0063] When unlocking, the pressing column 14 in the coded state needs to be pressed; the pressing column 14 in the uncoded state cannot be pressed.

[0064] A notch 17 is provided on the side wall of the installation groove 9, and the notch 17 is opened upward. A reset handle 18 is provided on the upper side wall of the notch 13 of the movable plate 5. When the movable plate 5 moves downward, the reset handle 18 enters the bottom of the installation groove 9 from the notch 17 to lift the pressing column 14 in the installation groove 9. The thickness of the reset handle 18 is gradually thickened from bottom to top. In the above technical solution, the reset handle 18 can lift the pressing column 14 pressed backward forward.

[0065] The reset push handle 18 is located at the rear side of the movable plate 5 , and a sliding groove 28 slidably matched with the reset push handle 18 is provided at the bottom of the housing 1 , and the sliding groove 28 is arranged along the up-down direction.

[0066] The movable plate 5 is pressed downward by the locking beam 3, the movable plate 5 moves downward, the reset push handle 18 moves downward, the reset push handle 18 enters the mounting groove 9, and pushes the pressing column 14 forward. In this way, all the pressing columns 14 can be pushed up and reset.

[0067] The front end of the pressing column 14 is connected with a pressing cap 20, and the pressing column 14 is operated by the pressing cap 20. The pressing cap 20 is fixedly connected to the pressing column 14 in the circumferential direction of the pressing column 14. The front end of the pressing column 14 is adapted to be inserted into the rear end of the pressing cap 20, and the rear end of the pressing cap 20 is provided with a hexagonal plug hole.

[0068] An annular anti-drop ring 27 is provided on the side wall of the pressing cap 20, and the anti-drop ring 27 is located inside the cover body 2, and the diameter of the anti-drop ring 27 is larger than the diameter of the key hole 15. In this way, the pressing cap 20 is restricted and fixed in the front-back direction.

[0069] The pressing cap 20 is provided with an anti-dropping ring 27, and the anti-dropping ring 27 is provided with a locking protrusion 21, and the locking protrusion 21 is arranged corresponding to the limiting protrusion 191, and the locking protrusion 21 is located on the inner side of the cover body 2, and the inner side surface of the cover body 2 is provided with a locking groove 22 connected to the locking protrusion 21. The locking protrusion 21 is connected to the locking groove 22, which can limit the rotation of the pressing cap 20 and the pressing column 14, which is equivalent to limiting the switching of the coding state and the non-coding state of the pressing column 14.

[0070] In the axial direction of the pressing column 14, a spring 23 is provided between the pressing cap 20 and the pressing column 14, a center hole 24 is provided in the center of the pressing column 14 and runs through the front and rear sides thereof, a center column 25 connected to the center hole 24 is provided at the bottom of the mounting groove 9, and the spring 23 is arranged in the center hole 24, one end of the spring 23 abuts against the center column 25, and the other end of the spring 23 abuts against the pressing cap 20. In this way, under the action of the spring 23, the locking protrusion 21 is always connected to the locking groove 22, so that the pressing cap 20 cannot be rotated. When the pressing cap 20 needs to be rotated, the pressing cap 20 needs to be pressed so that the locking protrusion 21 moves backward and leaves the locking groove 22, and the pressing cap 20 can be rotated. The locking groove 22 is arranged in the left and right directions, so that the locking protrusion 21 can still be connected to the locking groove 22 correspondingly after rotating 180 degrees.

[0071] An operating groove 26 is provided on the front end surface of the pressing cap 20 , and the pressing cap 20 is rotated by operating the operating groove 26 .

[0072] A decorative cover plate 29 is provided on the outer side of the cover body 2 , and Arabic numerals are provided on the decorative cover plate 29 .

[0073] An annular rubber ring 241 is sleeved on the side of the pressing column 14 , and a pre-tightening force is formed between the rubber ring 241 and the mounting groove 9 , so that the pressing column 14 can be positioned and fixed with the mounting groove 9 .

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A code-changeable keypadlock, comprising a housing (1) with an opening at the front side, a cover (2) provided on the opening side of the housing (1), a U-shaped lock beam (3) connected to the upper side of the housing (1), and two connecting holes (4) connected to the two ends of the lock beam (3) provided on the upper side of the housing (1), characterized in that: The housing (1) is provided with a movable plate (5) which can move in the up-down direction, a pushing portion (6) is provided on the lower side of the movable plate (5), a hole is provided on the housing (1) for the pushing portion (6) to pass through, one end of the locking beam (3) is connected to the upper side of the movable plate (5), and a top column (7) corresponding to the other end of the locking beam (3) is provided on the upper side of the movable plate (5); A spring (8) is arranged in the housing (1), a placement groove (12) for installing the spring (1) is arranged at the bottom of the housing (1), the placement groove (12) is arranged in the up-down direction, the spring (8) is installed in the placement groove (12), a through groove (10) penetrating the placement groove (12) is arranged in the housing (1), the through groove (10) is arranged in the up-down direction, a through bar (11) slidably connected to the through groove (10) is arranged on the movable plate (5), the through bar (11) is composed of upper and lower sections, and the upper and lower sections of the through bar (11) are respectively located in the through groove (10) on the upper and lower sides of the placement groove (12); The bottom of the housing (1) is provided with a mounting groove (9) which is open to the front, the movable plate (5) is provided with a notch (13) corresponding to the mounting groove (9), a pressing column (14) is connected in the mounting groove (9), the pressing column (14) is rotatably connected to the mounting groove (9), and the pressing column (14) is slidably connected to the mounting groove (9) in the front-rear direction; The cover body (2) is provided with a button hole (15) for the front end of the pressing column (14) to pass through; A limiting protrusion is provided on the side wall of the pressing column (14); A limiting protrusion (16) is provided on the side wall of the notch (13); when the limiting protrusion (16) corresponds to the restricting protrusion, the movable plate (5) can be prevented from moving; A notch (17) is provided on the side wall of the installation groove (9), and the notch (17) is opened upward. A reset handle (18) is provided on the side wall of the notch (13). When the movable plate (5) moves downward, the reset handle (18) enters the bottom of the installation groove (9) from the notch (17) to lift the pressing column (14) in the installation groove (9), and the thickness of the reset handle (18) is gradually thickened from bottom to top. There are a plurality of the installation grooves (9).

2. A password padlock with a changeable key according to claim 1, characterized in that: The limiting protrusions include limiting protrusion 1 (191) and limiting protrusion 2 (192), limiting protrusion 1 (191) and limiting protrusion 2 (192) are arranged at intervals in the axial direction of the pressing column (14), and limiting protrusion 1 (191) and limiting protrusion 2 (192) are arranged at intervals in the circumferential direction of the pressing column (14).

3. A code-changeable key combination padlock according to claim 2, characterized in that: The front end of the pressing column (14) is connected to a pressing cap (20). The pressing cap (20) is fixedly connected to the pressing column (14) in the circumferential direction of the pressing column (14). A locking protrusion (21) is provided on the side wall of the pressing cap (20). The locking protrusion (21) is located on the inner side of the cover body (2). A locking groove (22) connected to the locking protrusion (21) is provided on the inner side surface of the cover body (2). A spring 2 (23) is provided between the pressing cap (20) and the pressing column (14) in the axial direction of the pressing column (14).

4. A code-changeable key combination padlock according to claim 3, characterized in that: The center of the pressing column (14) is provided with a center hole (24) penetrating the front and rear sides thereof, the bottom of the mounting groove (9) is provided with a center column (25) connected to the center hole (24), one end of the second spring (23) is against the center column (25), and the other end of the second spring (23) is against the pressing cap (20).

5. The code-changeable key combination padlock according to claim 3, characterized in that: An operating groove (26) is provided on the front end surface of the pressing cap (20).

6. A code-changeable key combination padlock according to claim 3, characterized in that: In the circumferential direction of the pressing column (14), the angle between the limiting protrusion 1 (191) and the limiting protrusion 2 (192) is 180 degrees, and the locking protrusion (21) is arranged correspondingly to the limiting protrusion 1 (191).

7. The code-changeable key combination padlock according to claim 3, characterized in that: An annular anti-slip ring (27) is provided on the side wall of the pressing cap (20), the locking protrusion (21) is arranged on the anti-slip ring (27), and the diameter of the anti-slip ring (27) is larger than the diameter of the button hole (15).

8. The code-changeable key combination padlock according to claim 1, characterized in that: There are two springs (8), and the two springs (8) are respectively arranged on the left and right sides of the housing (1).

9. The code-changeable key combination padlock according to claim 1, characterized in that: The bottom of the housing (1) is provided with a sliding groove (28) which is slidably matched with the reset push handle (18).

10. The code-changeable key combination padlock according to claim 1, characterized in that: A decorative cover plate (29) is provided on the outer side surface of the cover body (2).

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