A password unlocking handle

Abstract

The present invention belongs to the technical field of locks, and particularly refers to a password unlocking handle, comprising a handle, a fixed plate connected to the handle, an unlocking assembly arranged between the handle and the fixed plate, the unlocking assembly comprising a square core, a rotating shaft formed on the square core, a password group wheel sleeved on the rotating shaft, the password group wheel comprising an outer dial wheel and an inner linkage wheel, a linkage groove formed on the inner linkage wheel, a linkage notch and a limit groove formed in the rotating shaft, a linkage member arranged in the rotating shaft, a linkage baffle plate that can be inserted into the linkage groove, and a limit baffle plate that can rotate relative to the rotating shaft are respectively formed on the linkage member, a spring that enables the linkage baffle plate to have a tendency to pop out of the linkage notch, and a spring that enables the limit baffle plate to have a tendency to rotate, and a code-changing through hole aligned with the left half of the limit groove is also formed on the handle. After installing the unlocking handle, the user can achieve the purpose of locking the door without locking the door lock, and the door lock can only be opened by rotating the unlocking handle when the password is correct.

Description

Technical Field

[0001] The present invention belongs to the technical field of locks and relates to a password unlocking handle. Background Art

[0002] Door locks are essential facilities in buildings for locking the doors. When people go out, they will use the door locks to lock the doors. In the case of traditional door locks being locked, users need to use keys to open the door locks to re-enter the house. However, since users may forget to bring or lose their keys, the locked door locks at this time will cause difficulties for users to re-enter the house. But if the door locks are not locked when going out, it will pose a safety hazard to the users' houses.

[0003] In view of the above problems, there have been designed electronic password locks on the market that can solve problems such as users forgetting to bring or losing their keys. When users forget to bring or lose their keys, they can directly unlock the door by entering the password. However, such electronic password locks are relatively expensive and the installation process is very cumbersome. During the use of the electronic password locks, users also need to ensure that they are always powered on. Once such electronic password locks lose power, users will not be able to use the electronic password locks normally.

[0004] In view of the above problems, an unlocking handle that saves costs and is easy to use and can also play a role in protecting the safety inside the house without the need to lock the door can be designed. Summary of the Invention

[0005] In view of the above problems, the present invention provides a password unlocking handle, which designs a password unlocking structure on the handle. When going out, users do not need to lock the door, but users can only open the door by turning the unlocking handle when the password is correct. When the password is incorrect, users will not be able to open the door even if they turn the unlocking handle.

[0006] The object of the present invention is achieved as follows:

[0007] The lock assembly of claim 1, wherein the locking plate is secured to the locking cam and is adapted to engage the locking cam of the locking cam and to engage with the locking cam when the locking cam is engaged.

[0008] When the spring pushes the linkage part to move, the linkage baffle pops out of the linkage notch and extends into the linkage groove. The linkage baffle rotates to the right end in the limiting groove, and a round pin extending to the left half of the limiting groove is inserted into the code-changing through hole, and the round pin abuts against the left end of the limiting baffle.

[0009] Furthermore, the end surface of the linkage baffle facing the linkage groove is an arc surface, the linkage groove is composed of a first protrusion formed in the inner linkage wheel toward the rotation axis, and the end surface of the first protrusion facing the rotation axis is an arc surface.

[0010] Furthermore, a code alignment resistance spring coil sleeved on the rotating shaft is provided between the rotating shaft and the inner linkage wheel, and a first clamping notch capable of accommodating the first protrusion is formed on the code alignment resistance spring coil.

[0011] Furthermore, an anti-slip groove is formed on the surface of the outer driving wheel.

[0012] Furthermore, the outer driving wheel is sleeved on the outer end of the inner linkage wheel, a limited end surface is formed inside the outer driving wheel, and a second protrusion that can abut against the limited end surface is formed on the surface of the inner linkage wheel.

[0013] Furthermore, a code-changing resistance spring coil sleeved on the inner linkage wheel is provided between the outer driving wheel and the inner linkage wheel, and a second clamping notch for accommodating the second protrusion is formed on the code-changing resistance spring coil.

[0014] Furthermore, a retaining ring sleeved on the rotating shaft is provided between the wheels of the cipher group.

[0015] Further, a gap is formed between the retaining ring and the rotating shaft. A positioning groove is formed on the rotating shaft, and a positioning convex body that fits into the positioning groove is formed on the retaining ring.

[0016] Further, a coupling groove is formed inside the rotating shaft, and a support shaft that can rotate in the coupling groove is formed on the linkage member.

[0017] Further, a linkage through-hole is formed at the side end of the rotating shaft. The spring is disposed in the linkage through-hole and extends from both ends of the linkage through-hole, and abuts between the inner linkage wheel and the linkage member respectively.

[0018] The prominent and beneficial technical effects of the present invention compared with the prior art are as follows:

[0019] 1. After installing the unlocking handle on the door, the user does not need to lock the door lock reversely, and the purpose of protecting the safety of the house can also be achieved. When opening the door through the unlocking handle, there is no need for a key, and only the unlocking handle needs to be rotated when the password is correct, which is easy for the user to operate and can be used in any environment.

[0020] 2. The unlocking handle has a pure mechanical structure, which is stable in structure and easy to install and use, and can effectively save its production cost.

[0021] 3. The unlocking handle can freely change the password according to the user's needs, and has better security. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0024] Figure 2 It is a three-dimensional schematic diagram of the disassembled state of the present invention.

[0025] Figure 3 It is a cross-section of the present invention Figure 1 .

[0026] Figure 4 It is a cross-section of the present invention Figure 2 .

[0027] Figure 5 It is a three-dimensional schematic diagram of the disassembled state of the password group wheel Figure 1 .

[0028] Figure 6 A three-dimensional diagram of the decomposed state of the cipher wheel Figure 2 .

[0029] Figure 7 It is a three-dimensional schematic diagram of the square core and the rotating axis.

[0030] Figure 8 It is a three-dimensional schematic diagram of the linkage.

[0031] 1-handle, 11-code-changing through hole, 2-fixed plate, 3-square core, 31-rotating shaft, 311-linkage notch, 312-limiting groove, 313-positioning groove, 314-coupling groove, 315-linkage through hole, 4-password group wheel, 41-outer dial wheel, 411-anti-slip groove, 412-limiting end face, 42-inner linkage wheel, 421-linkage groove, 422-first convex block, 423-second convex block, 5-linkage member, 51-linkage baffle, 52-limiting baffle, 53-support shaft, 6-spring, 7-code-matching resistance spring coil, 71-first clamping notch, 8-code-changing resistance spring coil, 81-second clamping notch, 9-retaining ring, 91-positioning convex body. DETAILED DESCRIPTION

[0032] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0033] The present invention will be further described below with reference to specific embodiments of the present invention.

[0034] like Figures 1-8As shown, a password unlocking handle comprises a handle 1, a fixing plate 2 is connected to the handle 1, an unlocking assembly 10 is arranged between the handle 1 and the fixing plate 2, and the unlocking assembly 10 comprises a square core 3 extending outward from the fixing plate 2, the square core 3 can rotate relative to the fixing plate 2, a rotating shaft 31 extending inwardly into between the handle 1 and the fixing plate 2 is formed on the square core 3, at least one group of password group wheels 4 is sleeved on the rotating shaft 31, the password group wheels 4 comprise an outer dial wheel 41 and an inner linkage wheel 42 which can rotate synchronously, a linkage groove 421 facing the rotating shaft 31 is formed on the inner linkage wheel 42, and the rotating shaft 31 is divided into a plurality of rotation axes 41 and a plurality of rotation axes 42. A linkage notch 311 and a limiting groove 312 are formed respectively, and a movable linkage member 5 is provided in the rotating shaft 31. The linkage member 5 is respectively formed with a linkage baffle 51 located in the linkage notch 311 and can extend into the linkage groove 421, and a limiting baffle 52 located in the limiting groove 312 and can rotate relative to the rotating shaft 31. The rotating shaft 31 is also provided with a spring 6 that enables the linkage baffle 51 to have a tendency to pop out of the linkage notch 311 and enables the limiting baffle 52 to have a tendency to rotate. The handle 1 is also formed with a code-changing through hole 11 aligned with the left half of the limiting groove 312. Specifically, the side end surface of the fixed plate 2 is formed with scale lines, and the surface of the external dial wheel 41 is formed with numbers. The external dial wheel 41 is rotated to the position where the code on its surface as a number is aligned with the scale lines on the external dial wheel 41, and the unlocking handle can be turned to open the door. When the user rotates the outer dial wheel 41, the inner linkage wheel 42 rotates synchronously with the outer dial wheel 41. When the outer dial wheel 41 rotates to a position with a correct password, the linkage member 5 is pushed by the spring 6 in the rotating shaft 31, and the linkage baffle 51 pops out from the linkage notch 311 of the rotating shaft 31 and extends into the linkage groove 421 of the inner linkage wheel 42. At this time, a linkage relationship is formed between the inner linkage wheel 42 and the rotating shaft 31. When the user rotates the unlocking handle, since the password group wheel 4 rotates as a whole with the unlocking handle, the inner linkage wheel 42 will drive the rotating shaft 31 to rotate through the linkage baffle 51 extending into the linkage groove 421. The rotation of the rotating shaft 31 is the rotation of the square core 3. The square core 3 is inserted into the square steel and connected to the door lock in the door. At this time, rotating the unlocking handle can control the door lock and open the door. When the outer driving wheel 41 is rotated again, the inner linkage wheel 42 can also press the linkage baffle 51 back into the linkage notch 311 through the linkage groove 421 , and reset the linkage member 5 .When the outer dial wheel 41 is not rotated to the position with the correct password, the linkage baffle 51 is always located in the linkage notch 311 and cannot pop out, and no linkage relationship can be formed between the inner linkage wheel 42 and the rotating shaft 31. At this time, when the unlocking handle is rotated, although the password group wheel 4 can rotate integrally with the unlocking handle, since the inner linkage wheel 42 cannot drive the rotating shaft 31 to rotate when rotating, that is, the square core 3 cannot rotate, the rotation of the unlocking handle is an ineffective idle rotation and cannot control the door lock to unlock. When the user needs to change the unlocking password of the unlocking handle, first rotate the outer dial wheel 41 to the position with the correct password. At this time, since the spring 6 pushes the linkage member 5 to move, the limit baffle 52 will also move from the left end to the right end in the limit groove 312, and there will be a vacant position in the left half of the limit groove 312. Insert a round pin with a suitable size through the code-changing through hole 11 of the handle 1 and extend it into the left half of the limit groove 312 with the vacant position. The round pin abuts against the left end of the limit baffle 52, and the linkage member 5 cannot be reset. At this time, when the user rotates the outer dial wheel 41, the inner linkage wheel 42 cannot rotate due to the influence of the linkage baffle 51 extending into the linkage groove 421. Forcefully rotate the outer dial wheel 41, and the outer dial wheel 41 and the inner linkage wheel 42 no longer rotate synchronously. The outer dial wheel 41 rotates while the inner linkage wheel 42 does not rotate. At this time, the user rotates the outer dial wheel 41 until the number of the desired position password is aligned with the scale line on the fixing plate 2, and the replacement of the unlocking password of the unlocking handle can be completed. After the password replacement is completed, pull out the round pin, rotate the outer dial wheel 41 again, and the inner linkage wheel 42 resumes its synchronous rotation relationship with it, and the linkage baffle 51 can be pressed back into the linkage notch 311 through the linkage groove 421, and the linkage member 5 resumes its resetable state, and the unlocking handle can continue to be used normally.

[0035] Further, the end face of the linkage baffle 51 facing the linkage groove 421 is an arc surface, and the linkage groove 421 is composed of a first convex block 422 formed in the inner linkage wheel 42 in the direction towards the rotating shaft 31. The end face of the first convex block 422 facing the rotating shaft 31 is an arc surface. Specifically, when the user does not rotate the unlocking handle but only rotates the outer dial wheel 41, since the inner linkage wheel 42 rotates synchronously therewith, there are arc surfaces on the first convex block 422 and the linkage baffle 51 that can cooperate with each other. When the inner linkage wheel 42 rotates, the first convex block 422 comes into contact with the linkage baffle 51. The first convex block 422 applies a push to the linkage baffle 51 through its arc surface, and the friction generated when the two come into contact is reduced through the arc surfaces of the two, so that the first convex block 422 can smoothly press the linkage baffle 51 back into the linkage notch 311.

[0036] Such as Figures 4-6As shown, a code matching resistance spring coil 7 sleeved on the rotating shaft 31 is provided between the rotating shaft 31 and the inner linkage wheel 42, and a first clamping notch 71 is formed on the code matching resistance spring coil 7 to accommodate the first protrusion 422. Specifically, the code matching resistance spring coil 7 can increase the friction between the inner linkage wheel 42 and the rotating shaft 31, so as to prevent the inner linkage wheel 42 from rotating relative to the rotating shaft 31 at will, so that when unlocking, the rotating shaft 31 cannot be normally driven to rotate by the inner linkage wheel 42 when the unlocking handle is rotated as a whole, so as to prevent the inner linkage wheel 42 from directly pressing the linkage baffle 51 back into the linkage notch 311 when the handle rotates as a whole, and does not drive the rotating shaft 31 to rotate. The cooperation between the first clamping notch 71 and the first protrusion 422 strengthens the connection between the code matching resistance spring coil 7 and the inner linkage wheel 42.

[0037] like Figures 5-6 As shown, an anti-skid groove 411 is formed on the surface of the outer dial wheel 41. Specifically, the protective groove 411 can make the user save more effort when dialing the outer dial wheel 41, and the anti-skid groove 411 also increases the friction between the outer dial wheel 41 and the handle 1, so that when the user rotates the unlocking handle as a whole, the handle 1 can effectively drive the combination wheel 4 to rotate accordingly.

[0038] like Figures 5-6 As shown, the outer driving wheel 41 is sleeved on the outer end of the inner linkage wheel 42, a limited end face 412 is formed inside the outer driving wheel 41, and a second protrusion 423 that can abut against the limited end face 412 is formed on the surface of the inner linkage wheel 42. Specifically, the connection between the outer driving wheel 41 and the inner linkage wheel 42 can be achieved by abutting the limited end face 412 with the second protrusion 423, and the second protrusion 423 can increase the friction between the outer driving wheel 41 and the inner linkage wheel 42, so that the outer driving wheel 41 and the inner linkage wheel 42 can better achieve synchronous rotation.

[0039] like Figures 4-6 As shown, a code-changing resistance spring coil 8 sleeved on the inner linkage wheel 42 is provided between the outer driving wheel 41 and the inner linkage wheel 42, and a second clamping notch 81 capable of accommodating the second protrusion 423 is formed on the code-changing resistance spring coil 7. Specifically, the resistance spring coil 8 further increases the friction between the outer driving wheel 41 and the inner linkage wheel 42, thereby preventing the outer driving wheel 41 from rotating while the inner linkage wheel 42 does not rotate except when changing codes, and at the same time, the cooperation between the clamping notch 81 and the second protrusion 423 reinforces the position of the code-changing resistance spring coil 8 between the outer driving wheel 41 and the inner linkage wheel 42.

[0040] like Figure 2As shown, a retaining ring 9 sleeved on the rotating shaft 31 is provided between the password group wheels 4. Specifically, the retaining ring 9 can block between the password group wheels 4. Since multiple groups of password group wheels 4 can increase the security of the unlocking handle, more digits are required for combination to unlock the handle. The retaining ring 9 can prevent the password group wheels 4 from interfering with each other due to friction when the user rotates the outer dial wheel 41 to adjust the password.

[0041] As Figure 2 and Figure 7 shown, a gap is formed between the retaining ring 9 and the rotating shaft 31. A positioning groove 313 is formed on the rotating shaft 31, and a positioning convex body 91 embedded in the positioning groove 313 is formed on the retaining ring 9. Specifically, since the linkage baffle 51 extends out from the linkage notch 311, that is, after the linkage baffle 51 extends out from the rotating shaft 31, it enters the linkage groove 421 of the inner linkage wheel 42. The gap between the retaining ring 9 and the rotating shaft 31 can prevent the retaining ring 9 from interfering with the extension of the linkage baffle 51. The cooperation between the positioning groove 313 and the positioning convex body 91 serves to fix the retaining ring 9 on the rotating shaft 31 and prevent the retaining ring 9 from shaking due to the gap between it and the rotating shaft 31.

[0042] As Figure 3 、 Figure 7 and Figure 8 shown, a coupling groove 314 is formed inside the rotating shaft 31, and a support shaft 53 that can rotate in the coupling groove 314 is formed on the linkage member 5. Specifically, the cooperation between the support shaft 53 and the coupling groove 314 provides a support point for the movement of the linkage member 5 in the rotating shaft 31, making the structure of the unlocking handle more stable.

[0043] Furthermore, a through hole 315 is formed at the side end of the rotating shaft 31. The spring 6 is disposed in the linkage through hole 315 and extends out from both ends of the linkage through hole 315, and abuts between the inner linkage wheel 42 and the linkage member 5 respectively. Specifically, one end of the spring 6 abuts against the inner end of the inner linkage wheel 42, and the other end abuts against the side end of the linkage member 5. When the inner linkage wheel 42 rotates until the linkage groove 421 aligns with the linkage baffle 51, the spring 6 can push the linkage member 5 to move in the rotating shaft 31, causing the linkage baffle 51 to pop out of the linkage notch 311 and extend into the linkage groove 421. The linkage through hole 315 serves to fix the spring 6.

[0044] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A password unlocking handle, comprising a handle (1), the handle (1) being connected to a fixing plate (2), an unlocking assembly (10) being arranged between the handle (1) and the fixing plate (2), It is characterized in that The unlocking assembly (10) comprises a square core (3) extending outward from the fixing plate (2), the square core (3) being rotatable relative to the fixing plate (2), a rotating shaft (31) extending inwardly between the handle (1) and the fixing plate (2) being formed on the square core (3), at least one group of cipher group wheels (4) being sleeved on the rotating shaft (31), the cipher group wheels (4) comprising an outer dial wheel (41) and an inner linkage wheel (42) being rotatable synchronously, a linkage groove (421) being formed on the inner linkage wheel (42) facing the rotating shaft (31), a linkage notch (311) and a limit groove (312) being respectively formed in the rotating shaft (31), the rotating shaft A movable linkage member (5) is provided in the linkage notch (31), and a linkage baffle (51) located in the linkage notch (311) and capable of extending into the linkage groove (421) and a limit baffle (52) located in the limit groove (312) and capable of rotating relative to the rotation shaft (31) are formed on the linkage member (5), respectively. A spring (6) is also provided in the rotation shaft (31) to enable the linkage baffle (51) to have a tendency to pop out of the linkage notch (311) and to enable the limit baffle (52) to have a tendency to rotate. A code-changing through hole (11) aligned with the left half of the limit groove (312) is also formed on the handle (1); When the spring (6) pushes the linkage member (5) to move, the linkage baffle (51) pops out of the linkage notch (311) and extends into the linkage groove (421), the limit baffle (52) rotates to the right end of the limit groove (312), and a round pin extending to the left half of the limit groove (312) is inserted into the code-changing through hole (11), so that the round pin abuts against the left end of the limit baffle (52); The end surface of the linkage baffle (51) facing the linkage groove (421) is an arc surface, the linkage groove (421) is composed of a first protrusion (422) formed in the inner linkage wheel (42) toward the direction of the rotating shaft (31), and the end surface of the first protrusion (422) facing the rotating shaft (31) is an arc surface; The outer driving wheel (41) is sleeved on the outer end of the inner linkage wheel (42), a limited end surface (412) is formed inside the outer driving wheel (41), and a second protrusion (423) that can abut against the limited end surface (412) is formed on the surface of the inner linkage wheel (42).

2. The password unlocking handle according to claim 1, It is characterized in that A code matching resistance spring coil (7) sleeved on the rotating shaft (31) is provided between the rotating shaft (31) and the inner linkage wheel (42), and a first clamping notch (71) capable of accommodating the first protrusion (422) is formed on the code matching resistance spring coil (7).

3. The password unlocking handle according to claim 1, It is characterized in that An anti-slip groove (411) is formed on the surface of the outer driving wheel (41).

4. The password unlocking handle according to claim 1, It is characterized in that A code-changing resistance spring coil (8) sleeved on the inner linkage wheel (42) is provided between the outer driving wheel (41) and the inner linkage wheel (42), and a second clamping notch (81) capable of accommodating the second protrusion (423) is formed on the code-changing resistance spring coil (8).

5. The password unlocking handle according to claim 1, It is characterized in that A retaining ring (9) sleeved on the rotating shaft (31) is provided between the cipher group wheels (4).

6. The password unlocking handle according to claim 5, It is characterized in that A gap is formed between the retaining ring (9) and the rotating shaft (31), a positioning groove (313) is formed on the rotating shaft (31), and a positioning protrusion (91) embedded in the positioning groove (313) is formed on the retaining ring (9).

7. The password unlocking handle according to claim 1, It is characterized in that A coupling groove (314) is formed in the rotating shaft (31), and a supporting shaft (53) that can rotate in the coupling groove (314) is formed on the linkage member (5).

8. The password unlocking handle according to claim 1, It is characterized in that A linkage through hole (315) is formed at the side end of the rotating shaft (31), and the spring (6) is arranged in the linkage through hole (315) and extends from both ends of the linkage through hole (315) and respectively abuts between the inner linkage wheel (42) and the linkage member (5).

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