Password trunk lock convenient for password change

Abstract

The utility model relates to a password trunk lock convenient to change passwords, which comprises a shell, a lock body, a lock hook, a lock cover and a password disk mechanism, the password disk mechanism comprises a pin shaft, code adjusting wheels and password wheels, the lock cover is provided with a plurality of groups of password disk holes, the password wheels penetrate out of the password disk holes, a plurality of groups of stop blocks are arranged on the periphery of the pin shaft, and a group of sliding chutes are arranged on the inner circumference of each group of code adjusting wheels. The coded lock is characterized in that a code changing piece is arranged on one side of the group of code adjusting wheels located at one end of the pin shaft, a first sliding groove distributed in the direction parallel to the axis of the pin shaft is formed in the lock cover, the upper end of the code changing piece extends to penetrate through the first sliding groove, and the group of code adjusting wheels located at the other end of the pin shaft is in linkage with a reset spring. The password tail box lock has the advantage that passwords can be conveniently changed.

Description

Technical Field

[0001] The utility model particularly relates to a password trunk lock which is convenient for changing passwords. Background Art

[0002] The function of a car trunk lock is to control the opening and closing of the trunk. Most trunk locks on the market are opened with a key. The disadvantage of this type of trunk lock is that if the key is lost or forgotten, it will cause great inconvenience. Therefore, password trunk locks for car trunks have also appeared on the market.

[0003] For example, a Chinese utility model patent document with publication number "CN206874094U" discloses a set of password trunk locks, which include a housing with a lock body, a rotating column, a step portion, an annular groove and a lock hook provided in the lock body; the lock hook is connected to the rotating column through a torsion spring. There is a card slot at the upper end of the lock body, and a built-in password opening mechanism, which includes multiple password disks, each of which is connected to a transmission shaft. The pin passes through the return spring and the transmission shaft, and a spring steel sheet is fixed at the end to clamp the password disk. There is a lock block on the card slot of the lock body to fix the password disk. There is a gear structure in the password disk corresponding to the clamping device on the transmission shaft. The top lock cover is provided with a password disk hole. By rotating the password disk to the correct password, the internal gear structure is released, and the pin is ejected to release the clamping relationship between the lock body and the housing. Rotating the lock cover drives the lock body and the lock hook to rotate to achieve unlocking.

[0004] Although the above-mentioned password trunk lock can realize the basic locking function, the operation of changing the password is extremely cumbersome. First, the top lock cover needs to be opened to expose the pin. Then the pin is manually pressed, and the gear structure inside the password disk is loosened from the transmission shaft 11. At this time, the password disk is manually turned to change the password. It can be seen that the operation of changing the password is extremely complicated, and the lock cover needs to be disassembled, the pin is manually pressed, and the lock cover must be reinstalled after the change.

[0005] Furthermore, in the process of changing the password, a person must continuously press the pin shaft with one hand, and the other hand must rotate the password disk, which makes the operation extremely difficult and greatly reduces the driver's experience.

[0006] Furthermore, since the pin is a thin and long column, it is difficult for a person to touch it, and a needle-shaped part must be used to press the pin, so the vehicle must be equipped with a needle-shaped part to achieve the function of changing the password. Therefore, although the password trunk lock does not require a key, it does require a needle-shaped part. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a password trunk lock which is easy to change the password in view of the deficiencies of the above-mentioned prior art.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a password trunk lock that is easy to change the password, comprising a shell and a lock body rotatably arranged in the shell, the lower end of the lock body is linked with a lock hook, and the upper end is linked with a lock cover, a password disk mechanism is arranged between the lock cover and the lock hook, the password disk mechanism comprises a pin shaft, a plurality of groups of code adjustment wheels sleeved on the outer periphery of the pin shaft, a group of code wheels is sleeved on the outer periphery of each group of code adjustment wheels, the lock cover is provided with a plurality of groups of code disk holes, the code wheels are exposed from the code disk holes, and the outer periphery of the pin shaft is provided with a plurality of groups of spaced A block, a group of sliding grooves are arranged through the inner circumference of each group of code adjustment wheels, a linkage structure is arranged between the code wheel and the code adjustment wheel, the code adjustment wheel can rotate coaxially with the code wheel through the linkage structure, or the code adjustment wheel can slide back and forth along the axis direction of the pin shaft relative to the code wheel, and it is characterized in that: a code change piece is arranged on one side of a group of code adjustment wheels located at one end of the pin shaft, a first sliding groove distributed along the axis of the pin shaft is arranged on the lock cover, the upper end of the code change piece extends to pass through the first sliding groove, and a group of code adjustment wheels located at the other end of the pin shaft are linked with a reset spring.

[0009] With the above technical solution, a person manually moves the code-changing piece, which then pushes the code-adjusting wheel, causing the code-adjusting wheel to slide relative to the password wheel along the axis of the pin shaft (the reset spring is compressed during this process), and there is no linkage relationship between the password wheel and the code-adjusting wheel. After that, the password wheel can be rotated at will, and the person manually rotates the password wheel to a suitable password, and then the person manually releases the code-changing piece, and the reset spring pushes the code-changing piece to reset, and the password is successfully changed. In summary, this technical solution can achieve a more convenient way to change the password of the trunk lock. Compared with the prior art, there is no need to disassemble the lock cover, and there is no need to equip small parts such as ejectors.

[0010] The password trunk lock that is easy to change the password can be further configured as follows: the end of the first sliding groove is conductively connected to the second sliding groove, and the first sliding groove and the second sliding groove are perpendicular to each other.

[0011] With the above technical solution, after manually moving the code-changing piece along the first sliding groove, the code-changing piece is moved into the second sliding groove. When changing the password, the code-changing piece can be released. During this process, due to the structural characteristics of the first sliding groove and the second sliding groove, the code-changing piece will not slide left and right, making it more convenient to change the password, thereby solving the problem in the prior art that "during the process of changing the password, the person must continuously press the pin shaft, and the other hand must rotate the password disk, making the operation extremely difficult." After the password is changed, the code-changing piece is first withdrawn from the second sliding groove and then reset along the first sliding groove.

[0012] The password trunk lock that is easy to change the password can be further configured as follows: the code changing member includes a sleeve movably sleeved on the outer periphery of the pin shaft, the sleeve is externally connected to a shift block, and the shift block passes through the first sliding groove or the second sliding groove.

[0013] By adopting the above technical solution, the sleeve is conducive to positioning the code change piece and preventing the code change piece from moving up and down. The design of the shift block facilitates manual control of the code change piece, and the "shift block passing through the first sliding groove or the second sliding groove" can prevent the code change piece from swinging left and right.

[0014] The above-mentioned password trunk lock that is easy to change the password can be further configured as follows: the linkage structure includes a first limiting ring arranged on the outer periphery of the coding wheel, a plurality of groups of plug-in blocks are arranged on the end face of the first limiting ring, a second limiting ring is arranged on the inner periphery of the password wheel, and a plurality of groups of slots are arranged at intervals on the end face of the second limiting ring.

[0015] The above technical solution is adopted to realize the functional requirements of the coding wheel and the password wheel rotating coaxially or the two sliding relative to each other along the axis direction of the pin shaft. When the plug is inserted into the slot, the coding wheel, the password wheel and the code changing piece can rotate coaxially, which is convenient for unlocking. When the coding wheel slides relative to the password wheel, the plug is separated from the slot, and the password wheel can rotate independently, which is convenient for changing the password. Further adding the first limit ring and the second limit ring to prevent the coding wheel from moving too much when sliding relative to the password wheel, ensure that the two can stably realize linkage when linkage is required.

[0016] The above-mentioned password trunk lock that is easy to change the password can be further configured as follows: the password disk mechanism also includes a mounting seat, a mounting hole is provided at the upper end of the lock body, and the mounting seat is distributed in the mounting hole; the mounting seat is provided with a plurality of groups of wheel grooves for placing the password wheel, and a group of spring pieces are provided under each group of wheel grooves, one end of the spring piece is connected to the mounting seat, and the other end is inclined toward the wheel groove.

[0017] By adopting the above technical solution, the mounting seat is convenient for installing the code disk mechanism. Separating the mounting seat from the lock body is conducive to the assembly of the code disk mechanism and the assembly of the entire code trunk lock. The spring piece is used to limit the code wheel to prevent the code wheel from rotating at will.

[0018] The above-mentioned password trunk lock that is easy to change the password can be further configured as: one end of the pin shaft is provided with a flange edge and a locking block in sequence, one end of the mounting seat is provided with a U-shaped groove, the locking block is movably inserted in the U-shaped groove, the flange edge is distributed between the U-shaped groove and the password wheel and the flange edge cannot pass through the U-shaped groove, one end of the reset spring is in contact with the flange edge, and the other end is in contact with the code adjustment wheel.

[0019] With the above technical solution, when the locking block contacts the inner circumference of the shell, the password trunk lock is in a locked state; when the locking block does not contact the inner circumference of the shell, the password trunk lock is in an unlocked state. The flange is used to limit the end of the reset spring so that the code wheel can be reset more quickly.

[0020] The above-mentioned password trunk lock that is easy to change the password can be further configured as follows: a groove is provided on the inner circumference of the shell, and the groove is distributed at one end of the pin shaft and is opposite to the locking block.

[0021] By adopting the above technical solution, when the locking block is inserted into the groove, the password trunk lock is in a locked state; when the locking block is pushed out of the groove, the password trunk lock is in an unlocked state. The groove is provided to make the locking state of the password trunk lock more stable, and even a large force cannot destroy the connection stability between the lock body and the housing.

[0022] The above-mentioned password trunk lock that is easy to change the password can be further configured as follows: the inner end surface of the lock cover is provided with several groups of positioning columns, the positioning columns are provided with threaded holes, the upper end of the lock body is provided with a positioning hole, the end of the positioning hole is provided with a screw connection surface, and the screw connection surface is provided with a screw hole.

[0023] By adopting the above technical solution, the lock cover and the lock body can be detachably connected by using screws that pass through the screw connection surface and penetrate into the threaded hole.

[0024] The above-mentioned password trunk lock that is easy to change the password can be further configured as follows: a rotation mark is provided on the outer end surface of the lock cover.

[0025] The above technical solution is used to indicate the correct rotation direction of the lock cover.

[0026] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an explosion diagram of an embodiment of the utility model;

[0028] Figure 2 A schematic diagram of a cipher wheel according to an embodiment of the utility model;

[0029] Figure 3 This is a schematic diagram of a coding wheel according to an embodiment of the utility model;

[0030] Figure 4 This is a schematic diagram of the code change state of an embodiment of the utility model;

[0031] Figure 5 This is a schematic diagram of the lock body of an embodiment of the utility model;

[0032] Figure 6 A schematic diagram of a lock cover according to an embodiment of the utility model;

[0033] Figure 7 A schematic diagram of a transmission plate according to an embodiment of the utility model;

[0034] Figure 8 This is a schematic diagram of the end face of an embodiment of the utility model after removing the lock cover;

[0035] Fig. 9 A schematic diagram of a mounting base according to an embodiment of the utility model;

[0036] Fig.10 It is an overall schematic diagram of an embodiment of the utility model.

[0037] Reference numerals: housing 1, groove 11; lock body 2, mounting hole 21, positioning hole 22, screw hole 23; lock hook 3; lock cover 4, combination disk hole 41, first sliding groove 42, second sliding groove 43, positioning column 44; combination disk mechanism a, pin a1, code adjustment wheel a2, combination wheel a3, block a4, slide groove a5, code change piece a6, sleeve a7, shift block a8, first limiting ring a9, insert block a10, second limiting ring a11, slot a12, mounting seat a13, wheel disk groove a14, spring piece a15, flange edge a16, locking block a17, U-shaped groove a18, reset spring a19. DETAILED DESCRIPTION

[0038] 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 in 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.

[0039] like Figures 1 to 10The password trunk lock for easy password change shown in the figure comprises a housing 1 and a lock body 2 rotatably arranged in the housing 1, a lock hook 3 is linked to the lower end of the lock body 2, and a lock cover 4 is linked to the upper end, and a password disk mechanism a is arranged between the lock cover 4 and the lock hook 3, and the password disk mechanism a comprises a pin a1, 3 groups of code adjustment wheels a2 are sleeved on the outer periphery of the pin a1, and each group of code adjustment wheels a2 is sleeved on the outer periphery of a group of code wheels a3, the lock cover 4 is provided with 3 groups of code disk holes 41, and the code wheels a3 are exposed from the code disk holes 41, and 3 groups of stoppers a4 are arranged at intervals on the outer periphery of the pin a1, and each group of code adjustment wheels a2 is provided on the inner periphery of the A group of sliding grooves a5 are set through, and a linkage structure is set between the code wheel a3 and the code adjustment wheel a2. The code adjustment wheel a2 can rotate coaxially with the code wheel a3 through the linkage structure, or the code adjustment wheel a2 can slide back and forth relative to the code wheel a3 along the axis direction of the pin a1. A code changing piece a6 is provided on one side of a group of code adjustment wheels a2 located at one end of the pin a1, and a first sliding groove 42 distributed along the axis parallel to the pin a1 is provided on the lock cover 4. The upper end of the code changing piece a6 extends to pass through the first sliding groove 42, and a group of code adjustment wheels a2 located at the other end of the pin a1 are linked with a reset spring a19. The code-changing piece a6 is manually moved, and then the code-changing piece a6 pushes the code-adjusting wheel a2, causing the code-adjusting wheel a2 to slide relative to the code wheel a3 along the axis direction of the pin a1 (the reset spring a19 is compressed during this process), and the code wheel a3 and the code-adjusting wheel a2 no longer have a linkage relationship, and then the code wheel a3 can be rotated at will, and the code wheel a3 can be rotated to a suitable code by hand, and then the code-changing piece a6 is manually released, and the reset spring a19 pushes the code-changing piece a6 to reset, and the code is successfully changed. In summary, this technical solution can realize a more convenient change of the code of the trunk lock, and compared with the prior art, there is no need to disassemble the lock cover 4, and there is no need to equip small parts such as ejectors.

[0040] The end of the first sliding groove 42 is connected to the second sliding groove 43, and the first sliding groove 42 and the second sliding groove 43 are perpendicular to each other. After the code change piece a6 is moved along the first sliding groove 42 by hand, the code change piece a6 is moved into the second sliding groove 43. When the password is changed, the code change piece a6 can be released. In this process, due to the structural characteristics of the first sliding groove 42 and the second sliding groove 43, the code change piece a6 will not slide left and right, which makes it more convenient to change the password, thereby solving the problem in the prior art that "in the process of changing the password, the hand must continue to press the pin a1 to achieve it, and the other hand must rotate the password disk, which makes the operation extremely difficult." After the password is changed, the code change piece a6 is first withdrawn from the second sliding groove 43 and then reset along the first sliding groove 42.

[0041] The code changing member a6 includes a sleeve a7 movably sleeved on the outer periphery of the pin a1, and a shifting block a8 is connected to the sleeve a7, and the shifting block a8 passes through the first sliding groove 42 or the second sliding groove 43. The sleeve a7 is conducive to the positioning of the code changing member a6 and prevents the code changing member a6 from moving up and down. The shifting block a8 is designed to facilitate manual control of the code changing member a6, and "the shifting block a8 passes through the first sliding groove 42 or the second sliding groove 43" can prevent the code changing member a6 from swinging left and right.

[0042] The linkage structure includes a first limiting ring a9 arranged around the outer circumference of the code adjustment wheel a2, three groups of insert blocks a10 are arranged on the end face of the first limiting ring a9, a second limiting ring a11 is arranged around the inner circumference of the password wheel a3, and three groups of slots a12 are arranged at intervals on the end face of the second limiting ring a11. The functional requirements of the code adjustment wheel a2 and the password wheel a3 being coaxially rotated or the two being relatively slid along the axis direction of the pin a1 are realized. When the insert block a10 is inserted into the slot a12, the code adjustment wheel a2, the password wheel a3 and the code change member a6 can be coaxially rotated, which is convenient for unlocking. When the code adjustment wheel a2 slides relative to the password wheel a3, the insert block a10 is separated from the slot a12, and the password wheel a3 can rotate independently, which is convenient for changing the password. The first limiting ring a9 and the second limiting ring a11 are further provided to prevent the code adjustment wheel a2 from moving too much when sliding relative to the password wheel a3, and ensure that the two can stably realize linkage when linkage is required.

[0043] The code disk mechanism a also includes a mounting seat a13. A mounting hole 21 is provided at the upper end of the lock body 2. The mounting seat a13 is distributed in the mounting hole 21. The mounting seat a13 is provided with three groups of wheel grooves a14 for placing the code wheel a3. A group of spring pieces a15 is provided below each group of wheel grooves a14. One end of the spring piece a15 is connected to the mounting seat a13 and the other end is inclined toward the wheel groove a14. The mounting seat a13 is convenient for installing the code disk mechanism a. The mounting seat a13 and the lock body 2 are separated, which is conducive to the assembly of the code disk mechanism a and the assembly of the entire code trunk lock. The spring piece a15 is used to limit the code wheel a3 to prevent the code wheel a3 from rotating at will.

[0044] One end of the pin a1 is provided with a flange edge a16 and a locking block a17 in sequence, one end of the mounting seat a13 is provided with a U-shaped groove a18, the locking block a17 is movably inserted in the U-shaped groove a18, the flange edge a16 is distributed between the U-shaped groove a18 and the code wheel a3 and the flange edge a16 cannot pass through the U-shaped groove a18, one end of the reset spring a19 is in contact with the flange edge a16, and the other end is in contact with the code wheel a2. When the locking block a17 is in contact with the inner circumference of the shell 1, the password trunk lock is in a locked state; when the locking block a17 is not in contact with the inner circumference of the shell 1, the password trunk lock is in an unlocked state. The flange edge a16 is used to limit the end of the reset spring a19 so that the code wheel a2 can be reset more quickly.

[0045] The inner circumference of the housing 1 is provided with a groove 11, which is distributed at one end of the pin a1 and is opposite to the locking block a17. When the locking block a17 is inserted into the groove 11, the password trunk lock is in a locked state; when the locking block a17 is pushed out of the groove 11, the password trunk lock is in an unlocked state. The provision of the groove 11 makes the locking state of the password trunk lock more stable, and even a large force cannot destroy the connection stability between the lock body 2 and the housing 1.

[0046] The inner end surface of the lock cover 4 is provided with two groups of positioning columns 44, and threaded holes are provided in the positioning columns 44. The upper end of the lock body 2 is provided with a positioning hole 22, and the end of the positioning hole 22 is provided with a screw connection surface, and the screw connection surface is provided with a screw hole 23. By using a screw, passing through the screw connection surface and penetrating into the threaded hole, the lock cover 4 and the lock body 2 can be detachably connected.

[0047] The outer end surface of the lock cover 4 is provided with a rotation mark to indicate the correct rotation direction of the lock cover 4.

[0048] The specific operation of changing the password in this embodiment is as follows: the code changing piece a6 is manually moved, and then the code changing piece a6 pushes the code adjusting wheel a2, causing the code adjusting wheel a2 to slide relative to the code wheel a3 along the axis direction of the pin shaft a1 (the reset spring a19 is compressed during this process), and the insert block a10 is disengaged from the slot a12, and there is no longer a linkage relationship between the code wheel a3 and the code adjusting wheel a2. After that, the code wheel a3 can be rotated at will, and the person can manually rotate the code wheel a3 to a suitable password, and then the person manually releases the code changing piece a6, and the reset spring a19 pushes the code changing piece a6 to reset, and the password is successfully changed.

[0049] The working principle of this embodiment:

[0050] When the password trunk lock needs to be opened, the password wheel a3 is rotated to the correct password state. During this process, due to the insertion of the insert block a10 into the slot a12, the coding wheel a2 will rotate with the password wheel a3. When the password is correct, the block a4 on the pin a1 corresponds to the slide groove a5 on the coding wheel a2, and then the lock cover 4 is rotated. Due to the rotational force of the lock cover 4, the pin a1 will withdraw from the groove 11, and the lock cover 4 can drive the lock body 2 to rotate, and the lock body 2 then drives the lock hook 3 to rotate, which means that the lock is successfully unlocked.

Claims

1. A password trunk lock that is convenient for changing passwords, comprising a housing and a lock body rotatably arranged in the housing, wherein the lower end of the lock body is linked with a lock hook, and the upper end is linked with a lock cover, a password disk mechanism is arranged between the lock cover and the lock hook, the password disk mechanism comprises a pin shaft, a plurality of groups of code adjustment wheels sleeved on the outer periphery of the pin shaft, a group of code wheels are sleeved on the outer periphery of each group of code adjustment wheels, the lock cover is provided with a plurality of groups of code disk holes, the code wheels are exposed from the code disk holes, a plurality of groups of block blocks arranged at intervals are arranged on the outer periphery of the pin shaft, a group of sliding grooves are arranged through the inner periphery of each group of code adjustment wheels, a linkage structure is arranged between the code wheel and the code adjustment wheel, the code adjustment wheel can rotate coaxially with the code wheel through the linkage structure, or the code adjustment wheel can slide back and forth relative to the code wheel along the axis direction of the pin shaft, and is characterized in that: A code changing piece is provided on one side of a group of code adjusting wheels located at one end of the pin shaft, and a first sliding groove distributed along the axis of the pin shaft is provided on the lock cover. The upper end of the code changing piece extends to pass through the first sliding groove, and a group of code adjusting wheels located at the other end of the pin shaft is linked with a reset spring.

2. The password-changing trunk lock according to claim 1, characterized in that: The end of the first sliding groove is conductively connected to the second sliding groove, and the first sliding groove and the second sliding groove are perpendicular to each other.

3. The password-changing trunk lock according to claim 2, characterized in that: The code changing part comprises a sleeve movably sleeved on the outer periphery of the pin shaft, the sleeve is externally connected with a shifting block, and the shifting block passes through the first sliding groove or the second sliding groove.

4. The password trunk lock that is easy to change password according to any one of claims 1 to 3, characterized in that: The linkage structure includes a first limiting ring arranged around the outer circumference of the code adjustment wheel, a plurality of groups of insert blocks are arranged on the end surface of the first limiting ring, a second limiting ring is arranged around the inner circumference of the code wheel, and a plurality of groups of slots are arranged at intervals on the end surface of the second limiting ring.

5. The password-changing trunk lock according to claim 4 is characterized in that: The code disk mechanism also includes a mounting seat, a mounting hole is provided at the upper end of the lock body, and the mounting seat is distributed in the mounting hole; the mounting seat is provided with a plurality of groups of wheel grooves for placing the code wheel, and a group of spring pieces are provided under each group of wheel grooves, one end of the spring piece is connected to the mounting seat, and the other end is inclined toward the wheel groove.

6. The password-changing trunk lock according to claim 5, characterized in that: One end of the pin shaft is provided with a flange edge and a locking block in sequence, one end of the mounting seat is provided with a U-shaped groove, the locking block is movably inserted in the U-shaped groove, the flange edge is distributed between the U-shaped groove and the code wheel and the flange edge cannot pass through the U-shaped groove, one end of the reset spring is in contact with the flange edge, and the other end is in contact with the code adjustment wheel.

7. The password-changing trunk lock according to claim 6, characterized in that: The inner circumferential surface of the shell is provided with a groove, and the groove is distributed at one end of the pin shaft and is opposite to the locking block.

8. The password-changing trunk lock according to any one of claims 1 to 3, characterized in that: The inner end surface of the lock cover is provided with a plurality of positioning columns, the positioning columns are provided with threaded holes, the upper end of the lock body is provided with a positioning hole, the end of the positioning hole is provided with a screw connection surface, and the screw connection surface is provided with a screw hole.

9. The password trunk lock that is easy to change password according to any one of claims 1 to 3, characterized in that: The outer end surface of the lock cover is provided with a rotation mark.

Images