Back locking structure and door lock mechanism
Through the anti-lock push rod design of sliding cavity, limit chute and inclined surface drive, the traditional anti-lock mechanism is solved and the difficulty of operation caused by mechanical wear is achieved, a stable and convenient anti-locking process is achieved, and the protection capability and user experience of the door lock are improved.
Patent Information
- Application Number
- CN202422413202.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-09-30
AI Technical Summary
Traditional anti-lock mechanisms are prone to deterioration of mechanical coordination accuracy due to wear, aging or foreign objects, causing shaking, and are difficult to operate, especially inconvenient for users with less strength.
The anti-lock push rod design is adopted with sliding cavity, limiting chute and inclined surface drive. The anti-locking sliding rod slide achieves smooth sliding of the anti-locking push rod, and the reset part and tooth structure are used to convert the sliding into rotational motion to ensure the stability and smoothness of the anti-locking process.
It reduces the shaking phenomenon during the anti-locking process, reduces the operating force requirement, improves the stability and convenience of the anti-locking, enhances the protection ability of the door lock, and improves the safety of the home.
Smart Images
Figure CN223202870U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of door locks, in particular to an anti-locking structure and a door lock mechanism. Background Art
[0002] With the rapid development of modern society and the continuous improvement of residents' safety awareness, home security has become an important aspect of people's daily lives that cannot be ignored. As the first line of defense for home security, the advanced design and reliability of door locks are directly related to the personal and property safety of family members. Among the many functional components of a door lock, the anti-lock mechanism, as the core component that enhances the door lock's internal protection capabilities, is particularly critical in terms of its rational design and performance. Traditional door lock anti-lock mechanisms generally use a knob-type operation. The user manually rotates the anti-lock lever, which engages the internal anti-lock device with the lock cylinder or lock tongue to form a locked state, thereby preventing the door handle from rotating and achieving the anti-locking purpose. This design improves the door lock's protection capabilities to a certain extent, but it also exposes a series of significant technical limitations.
[0003] First, traditional anti-locking mechanisms often use fasteners like anti-lock grooves and steel balls to achieve locking. This mechanical engagement method can degrade over time due to wear, aging, or foreign matter intrusion, leading to internal component jitter, such as rod jump. These issues not only reduce the stability and reliability of the anti-locking mechanism but also accelerate the deterioration of internal components, shortening the door lock's service life.
[0004] Secondly, because the locking mechanism of the anti-locking groove and the steel ball requires a lot of force to maintain the locking stability, the user often needs to apply a large rotational force during the anti-locking process. This undoubtedly increases the difficulty and inconvenience of the operation for users with less strength. Utility Model Content
[0005] In order to overcome at least one of the above-mentioned defects of the prior art, the present invention provides a reverse locking structure and a door lock mechanism, which can solve the problem of parts shaking during the locking process, maintain the smoothness of reverse locking, and reduce the difficulty of reverse locking.
[0006] The technical solution adopted by the present invention to solve the problem is:
[0007] The lock mechanism of claim 1, wherein the first handle is provided with a sliding cavity and a first inner handle cavity; a first inner handle head, the first inner handle head being provided with a limiting sliding groove, the first inner handle head being assembled in the first inner handle cavity for being rotatably connected to the lock; an anti-lock sliding rod, the anti-lock sliding rod being slidably arranged in the sliding cavity, one end of the anti-lock sliding rod being provided with a first driving mechanism; a driving sleeve, the driving sleeve being provided with a second driving mechanism drivingly connected to the first driving mechanism; an anti-lock push rod, the anti-lock push rod being slidably arranged in the limiting sliding groove; wherein an edge of the driving sleeve is provided with an inclined surface for driving the anti-lock push rod to move toward the lock direction, when the anti-lock sliding rod slides toward the anti-locking end of the sliding cavity, the first driving mechanism drives the second driving mechanism and causes the driving sleeve to rotate, the inclined surface controls the anti-lock push rod to slide along the limiting sliding groove toward the lock and be inserted into the locking hole of the lock, at which time the first inner handle head is relatively fixed to the lock to complete the anti-locking.
[0008] By adopting the above-mentioned scheme, through the design of sliding cavity, limiting slide groove, etc., the anti-locking push rod can slide smoothly during the anti-locking process, reducing the shaking phenomenon caused by the decrease in mechanical matching accuracy; by using the inclined surface to drive the anti-locking push rod, the anti-locking force does not need to be very large, which further improves the stability and smoothness of the anti-locking process.
[0009] Furthermore, a reset member is sleeved on the anti-lock push rod, and the reset member is used to provide elastic force for the anti-lock push rod to slide away from the lock.
[0010] By adopting the above solution, the reset member enables the anti-lock push rod to automatically reset and disengage from the lock and automatically reset to the initial position when it is not pushed by the inclined surface and is locked with the lock.
[0011] Furthermore, the first driving mechanism and the second driving mechanism are mutually meshing tooth structures, so that the sliding of the anti-locking sliding rod can drive the driving sleeve to rotate.
[0012] By adopting the above solution, the sliding motion of the anti-locking sliding rod can be efficiently converted into the rotational motion of the driving sleeve, thereby controlling the movement of the anti-locking push rod and ensuring the smooth completion of the anti-locking action.
[0013] Furthermore, a rack is provided at one end of the first driving mechanism, and a gear meshing with the rack is provided at one end of the driving sleeve, and the rack is perpendicular to the axis of the gear.
[0014] By adopting the above solution, the linear motion of the rack can be directly converted into the rotational motion of the gear, and lateral force or offset is not easily generated during the transmission process, thereby ensuring the accuracy and efficiency of the transmission.
[0015] Furthermore, a sliding hole is provided on one side of the first handle, and the anti-lock sliding rod is provided with a toggle block, and the toggle block is slidably arranged in the sliding hole.
[0016] By adopting the above solution, the sliding block can be moved in the sliding hole by toggling it, and at the same time the anti-locking sliding rod slides in the sliding cavity to realize the anti-locking or unlocking operation.
[0017] Furthermore, a touch member is provided in the sliding cavity, and a matching portion for engaging with the touch member is provided on a side of the anti-lock sliding rod facing the touch member.
[0018] By adopting the above solution, it is possible to determine whether the anti-locking operation has been completed through touch or sound signals, thereby avoiding safety hazards caused by improper operation or misoperation, and the user can more accurately grasp the status of the anti-locking mechanism, ensuring that the door lock is in the anti-locking state when needed, thereby improving home safety.
[0019] Furthermore, a first cover is provided on the side of the first handle away from the lock, and the first cover covers the sliding cavity and the first inner handle cavity of the first handle. A first observation hole is provided on the first cover, and a first color disk is provided on one end of the drive sleeve facing the first observation hole. When the drive sleeve rotates, the first color disk rotates to change the position exposed from the first observation hole.
[0020] By adopting the above solution, the user does not need to open the lock or perform other complicated operations, but only needs to observe the first color disk in the first observation hole to quickly understand the locked state. This intuitive display method improves the convenience and efficiency of use.
[0021] A door lock mechanism includes a second handle, a second inner handle head, a lock and an anti-lock structure, wherein the second handle has a second inner handle cavity, the second inner handle head is assembled in the second inner handle cavity, the second handle and the first handle are respectively rotatably connected to the two sides of the lock, the first handle and the second handle rotate synchronously, and the lock is provided with a locking hole for the anti-lock push rod to extend into the side facing the first handle, when the anti-lock push rod enters the locking hole, the lock is relatively fixed to the first handle and the second handle to achieve anti-locking.
[0022] By adopting the above solution, under normal circumstances, the user can operate the first handle or the second handle to move the lock tongue, lock core and other components of the lock, thereby realizing the unlocking or locking function of the door lock. When anti-locking is required, the user operates the anti-lock sliding rod to push the anti-lock push rod into the locking hole of the lock. At this time, the lock is relatively fixed with the first handle and the second handle, thereby realizing the anti-locking function.
[0023] Furthermore, it also includes an unlocking rod, one end of which is provided with an unlocking hole, and the unlocking hole is provided on the side of the second handle away from the lock, and the unlocking hole is located in the second inner handle cavity, for operating the unlocking hole from the second handle, and the other end of the unlocking rod passes through the lock and is driven and connected to the drive sleeve to drive the drive sleeve to rotate and unlock through the unlocking hole.
[0024] By adopting the above solution, when the key is inserted into the unlocking hole and rotated, the unlocking rod can transmit this rotation action to the drive sleeve, thereby triggering the unlocking mechanism.
[0025] Furthermore, a second cover is provided on the side of the second handle away from the lock, and the second cover covers the second inner handle cavity of the second handle. A second observation hole is provided on the second cover, and a second color disk is provided on the edge of the unlocking hole facing the second observation hole. When the unlocking hole is rotated, the second color disk rotates to change the position exposed from the second observation hole.
[0026] By adopting the above solution, the user can intuitively see from the second handle whether there is an anti-lock operation at present. When it is in the anti-lock state, the key needs to be used to open the door. Otherwise, the key does not need to be used to open the door, and the second handle can be directly turned.
[0027] In summary, the anti-lock structure and door lock mechanism provided by the present invention have the following technical effects:
[0028] 1. The design of the anti-locking sliding rod, rotating sleeve, and limiting sliding groove allows the anti-locking push rod to slide smoothly during the anti-locking process, reducing the shaking caused by mechanical precision loss or wear. This design ensures the stability and smoothness of the anti-locking process and improves the user experience;
[0029] 2. The use of an inclined surface to drive the anti-lock push rod reduces the force required for the anti-lock process. This not only makes it easier for users with less strength to operate, but also reduces hand fatigue after long-term use, improving the convenience of anti-locking.
[0030] 3. Once the anti-lock push rod enters the locking hole, the lock, the first handle, and the second handle are fixed relative to each other, forming a more secure locking state. This design improves the door lock's protective capabilities and enhances the personal and property safety of family members. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 This is a schematic diagram of a partial explosion structure of an embodiment of the present utility model;
[0032] Figure 2 This is a schematic diagram of the anti-locking sliding rod structure of an embodiment of the utility model;
[0033] Figure 3 This is a schematic diagram of the structure of the drive sleeve according to an embodiment of the utility model;
[0034] Figure 4 This is a schematic diagram of the side structure of the drive sleeve according to an embodiment of the utility model;
[0035] Figure 5 This is a schematic diagram of the connection structure between the first inner handle head and the anti-lock push rod according to an embodiment of the utility model;
[0036] Figure 6 This is a schematic diagram of the door lock mechanism structure of an embodiment of the present utility model;
[0037] Figure 7 This is a schematic cross-sectional view of a door lock mechanism according to an embodiment of the present invention;
[0038] Figure 8 This is a schematic diagram of the lock structure of an embodiment of the present utility model.
[0039] 1. The first handle is locked and unlocked. 2. The second handle is locked and unlocked. 3. The second handle is locked. 4. The second handle is locked and unlocked. 5. The second handle is locked. 6. The second handle is locked. 7. The second handle is locked. 8. The second handle is locked. DETAILED DESCRIPTION
[0040] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0041] In order to facilitate the understanding of the embodiments of the present invention, the following will be further explained with reference to specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present invention.
[0042] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.
[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.
[0044] Example 1 of the present utility model is shown in FIG. Figures 1-8 As shown, a reverse locking structure is disclosed, including a first handle 1, a first inner handle head 12, a reverse locking sliding rod 2, a driving sleeve 3 and a reverse locking push rod 6, wherein a sliding cavity 11 and a first inner handle cavity 15 are provided in the first handle 1, and the first inner handle head 12 is assembled in the first inner handle cavity 15 for being rotatably connected with the lock 5; the first inner handle head 12 is provided with a limiting sliding groove 121, the reverse locking sliding rod 2 is slidably arranged in the sliding cavity 11, one end of the reverse locking sliding rod 2 is provided with a first driving mechanism 21, and the driving sleeve 3 is provided with a driving connection with the first driving mechanism 21 The second driving mechanism 31, the anti-lock push rod 6 is slidably arranged in the limiting slide groove 121; the edge of the driving sleeve 3 is provided with an inclined surface 32 for driving the anti-lock push rod 6 to move toward the lock 5. When the anti-lock sliding rod 2 slides toward the anti-locking end of the sliding cavity 11, the first driving mechanism 21 drives the second driving mechanism 31 and causes the driving sleeve 3 to rotate. The inclined surface 32 controls the anti-lock push rod 6 to slide along the limiting slide groove 121 toward the lock 5 and insert it into the locking hole 51 of the lock 5. At this time, the first inner handle head 12 is relatively fixed to the lock 5 to complete the anti-locking. Through the design of the sliding cavity 11, the limiting slide groove 121, etc., the anti-lock push rod 6 can slide smoothly during the anti-locking process, reducing the shaking phenomenon caused by the decrease in mechanical matching accuracy; the anti-locking force does not need to be very large by adopting the inclined surface 32, which further improves the stability and smoothness of the anti-locking process.
[0045] In some embodiments, to ensure that the anti-lock push rod 6 can automatically disengage the lock 5 in the unlocked state, a reset member 61 is sleeved on the anti-lock push rod 6. The reset member 61 is used to provide elastic force for the anti-lock push rod 6 to slide away from the lock 5. Thus, the reset member 61 allows the anti-lock push rod 6 to automatically reset and disengage the lock 5 and automatically return to its initial position when it is no longer thrusted by the inclined surface 32 and is locked with the lock 5. Specifically, the cross-sectional area of the anti-lock push rod 6 gradually increases from away from the lock 5 to closer to the lock 5. Optionally, the anti-lock push rod 6 can increase in size in an arc-shaped transition or in a stepped structure, so that one end of the reset member 61 can abut the side of the anti-lock push rod 6 and the other end abuts the end of the limiting slot 121 away from the lock 5, so that the reset member 61 is compressed when the anti-lock push rod 6 enters the lock 5. Preferably, the reset member 61 is a spring.
[0046] In some embodiments, the first drive mechanism 21 and the second drive mechanism 31 are mutually meshing tooth structures, so that the sliding of the anti-locking sliding rod 2 can drive the rotation of the drive sleeve 3. Since the sliding motion of the anti-locking sliding rod 2 can be efficiently converted into the rotation motion of the drive sleeve 3, the movement of the anti-locking push rod 6 can be controlled, ensuring the smooth completion of the anti-locking action. Optionally, in other embodiments, the first drive mechanism 21 and the second drive mechanism 31 can also be a protrusion on the drive sleeve 3 and a sliding hole 14 provided at the end of the anti-locking sliding rod 2, the protrusion being provided in the sliding hole 14, and when the anti-locking sliding rod 2 slides, the protrusion is driven to move, thereby rotating the drive sleeve 3; in this embodiment 1, the end of the anti-locking sliding rod 2 is provided with an inwardly concave rectangular groove, the lower edge of which is provided with a rack 211, and the drive sleeve 3 is provided with a gear 311, the rack 211 being perpendicular to the axis of the gear 311, and the rotation operation of the drive sleeve 3 is completed by the meshing of the rack 211 with the circular teeth. Optionally, the teeth on the gear 311 may be only two-thirds or one-half, so that the linear motion of the rack 211 is directly converted into the rotational motion of the gear 311. Since lateral force or offset is not easily generated during the transmission process, the transmission accuracy and efficiency are guaranteed.
[0047] Specifically, the inclined surface 32 of the drive sleeve 3 is a semicircular slope located at one end of the drive sleeve 3 and arranged along the circumferential direction. When the drive sleeve 3 rotates so that the anti-lock push rod 6 is located at the top of the slope, the anti-lock push rod 6 is inserted into the lock 5 to achieve anti-locking. When the drive sleeve 3 rotates so that the anti-lock push rod 6 is located at the bottom of the slope, the anti-lock push rod 6 is reset and disengaged from the lock 5 by the force of the elastic member, thereby achieving unlocking of the anti-lock.
[0048] Since users often forget whether they have locked the door after locking it indoors, in order to make the user clear whether the door is currently locked, in some embodiments, a first cover 13 is provided on the side of the first handle 1 away from the lock 5. The first cover 13 covers the sliding cavity 11 and the first inner handle cavity 15 of the first handle 1. A first observation hole 131 is provided on the first cover 13. A first color disk 33 is provided on the end of the drive sleeve 3 facing the first observation hole 131. When the drive sleeve 3 rotates, the first color disk 33 rotates to change the position exposed from the first observation hole 131. The user does not need to open the lock 5 or perform other complex operations. He can quickly understand the locked state by simply observing the first color disk 33 in the first observation hole 131. This intuitive display method improves the convenience and efficiency of use.
[0049] In some embodiments, in order to facilitate the user's operation of sliding the anti-locking sliding rod 2, a sliding hole 14 is further provided on one side of the first handle 1. The anti-locking sliding rod 2 is provided with a toggle block 22. The toggle block 22 is slidably arranged in the sliding hole 14. By toggling the sliding block, it can be moved in the sliding hole 14. At the same time, the anti-locking sliding rod 2 slides in the sliding cavity 11 to achieve anti-locking or unlocking operations. Optionally, the sliding hole 14 can also be provided on the side of the first handle 1 away from the lock 5, that is, on the first cover 13, to facilitate user operation. In this embodiment 1, the sliding hole 14 is provided on the side of the first handle 1 facing the lock 5, which can hide the anti-locking mechanism to avoid external collisions. At the same time, it can also prevent children from locking themselves into the house due to curious touch.
[0050] In some embodiments, in order to improve the tactile feel of locking and unlocking, a touch member 7 is provided in the sliding cavity 11, and a mating portion 23 that engages with the touch member 7 is provided on the side of the anti-locking sliding rod 2 facing the touch member 7. The completion of the anti-locking operation can be judged by tactile or sound signals, thereby avoiding safety hazards caused by improper operation or misoperation, and the user can more accurately grasp the status of the anti-locking mechanism, ensuring that the door lock is in the anti-locking state when needed, thereby improving the safety of the home. Optionally, the touch member 7 and the mating portion 23 can be a spring-loaded locking steel ball and a spherical groove for the steel ball to engage, or two interacting protrusions, or of course, a structure of one protrusion and one groove, as long as it can provide a tactile sense.
[0051] The present utility model also relates to a door lock mechanism, comprising a second handle 8, a second inner handle head 81, a lock 5 and an anti-locking structure, wherein the second handle 8 has a second inner handle cavity 84, the second inner handle head 81 is assembled in the second inner handle cavity 84, the second handle 8 and the first handle 1 are respectively rotatably connected to the two sides of the lock 5, the first handle 1 and the second handle 8 rotate synchronously, and the lock 5 is provided with a locking hole 51 for the anti-locking push rod 6 to extend into the side facing the first handle 1, when the anti-locking push rod 6 enters the locking hole 51, the lock 5 is relatively fixed to the first handle 1 and the second handle 8 to achieve anti-locking.
[0052] Under normal circumstances, the door lock mechanism can move the lock tongue, lock core and other components of the lock 5 by operating the first handle 1 or the second handle 8, thereby realizing the unlocking or locking function of the door lock. When anti-locking is required, the user operates the anti-lock sliding rod 2 to push the anti-lock push rod 6 into the locking hole 51 of the lock 5. At this time, the lock 5 is relatively fixed with the first handle 1 and the second handle 8, thereby realizing the anti-locking function.
[0053] Optionally, the door lock mechanism further includes an unlocking rod 4, one end of which is provided with an unlocking hole 41. The unlocking hole 41 is provided on the side of the second handle 8 away from the lock 5. The unlocking hole 41 is located within the second inner handle cavity 84 and is used to operate the unlocking hole 41 from the second handle 8. The other end of the unlocking rod 4 passes through the lock 5 and is driven and connected to the drive sleeve 3 to drive the drive sleeve 3 to rotate and unlock through the unlocking hole 41. When a key is inserted into the unlocking hole 41 and rotated, the unlocking rod 4 can transmit this rotational action to the drive sleeve 3, thereby triggering the unlocking mechanism. Optionally, the unlocking hole 41 can be a keyhole or other device for unlocking.
[0054] In order to further improve the locking strength of the locking hole 51, in some embodiments, bosses 52 are provided on both sides of the locking hole 51 in contact with the anti-locking push rod 6, and the bosses 52 are trapezoidal or triangular dam structures to improve their own force effect and avoid damage.
[0055] In order to enable the user to clearly know whether the door body is locked when opening the door on the side of the second handle 8, that is, the outside of the door body, a second cover body 82 can be provided on the side of the second handle 8 away from the lock 5. The second cover body 82 covers the second inner handle cavity 84 of the second handle 8. A second observation hole 83 is provided on the second cover body 82. A second color disk 42 is provided on the edge of the unlocking hole 41 facing the second observation hole 83. When the unlocking hole 41 rotates, the second color disk 42 rotates to change the position exposed from the second observation hole 83. The user can intuitively see from the second handle 8 whether there is an anti-locking operation at present. When it is in the anti-locking state, the key needs to be used to open the door. Otherwise, the key is not needed to open the door, and the second handle 8 can be directly rotated.
[0056] In summary, the anti-lock structure and door lock mechanism provided by the present invention have the following technical effects:
[0057] 1. The design of the anti-locking sliding rod 2, rotating sleeve, and limiting sliding groove 121 allows the anti-locking push rod 6 to slide smoothly during the anti-locking process, reducing shaking caused by mechanical fitting precision loss or wear. This design ensures the stability and smoothness of the anti-locking process, improving the user experience;
[0058] 2. The use of the inclined surface 32 to drive the anti-lock push rod 6 reduces the force required for the anti-lock process. This not only facilitates operation for users with less strength, but also reduces hand fatigue after long-term use, and improves the convenience of anti-locking.
[0059] 3. After the anti-lock push rod 6 enters the locking hole 51 of the lock 5, the lock 5 is fixed relative to the first handle 1 and the second handle 8, forming a more stable locking state. This design improves the security capability of the door lock and enhances the personal safety and property safety of family members.
[0060] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.
Claims
1. A reverse locking structure, characterized in that: include: A first handle (1), wherein the first handle (1) is provided with a sliding cavity (11) and a first inner handle cavity (15); A first inner handle head (12), wherein the first inner handle head (12) is provided with a limiting sliding groove (121), and the first inner handle head (12) is assembled in the first inner handle cavity (15) and is used for being rotatably connected to the lock (5); A reverse locking sliding rod (2), wherein the reverse locking sliding rod (2) is slidably disposed in the sliding cavity (11), and a first driving mechanism (21) is disposed at one end of the reverse locking sliding rod (2); A drive sleeve (3), wherein the drive sleeve (3) is provided with a second drive mechanism (31) drivingly connected to the first drive mechanism (21); A reverse locking push rod (6), wherein the reverse locking push rod (6) is slidably arranged in the limiting sliding groove (121); Wherein, the edge of the driving sleeve (3) is provided with an inclined surface (32) for driving the anti-locking push rod (6) to move toward the lock (5). When the anti-locking sliding rod (2) slides toward the anti-locking end of the sliding cavity (11), the first driving mechanism (21) drives the second driving mechanism (31) and rotates the driving sleeve (3). The inclined surface (32) controls the anti-locking push rod (6) to slide along the limiting sliding groove (121) toward the lock (5) and insert it into the locking hole (51) of the lock (5). At this time, the first inner handle head (12) is relatively fixed to the lock (5) to complete the anti-locking.
2. The anti-locking structure according to claim 1, characterized in that: A reset member (61) is sleeved on the anti-lock push rod (6), and the reset member (61) is used to provide elastic force for the anti-lock push rod (6) to slide away from the lock (5).
3. The anti-locking structure according to claim 1, characterized in that: The first drive mechanism (21) and the second drive mechanism (31) are mutually meshing tooth structures, so that the sliding of the anti-locking sliding rod (2) can drive the driving sleeve (3) to rotate.
4. The anti-locking structure according to claim 3, characterized in that: A rack (211) is provided at one end of the first driving mechanism (21), and a gear (311) meshing with the rack (211) is provided at one end of the driving sleeve (3), wherein the rack (211) is perpendicular to the axis of the gear (311).
5. The anti-locking structure according to claim 1, characterized in that: A sliding hole (14) is further provided on one side of the first handle (1), and the anti-lock sliding rod (2) is provided with a toggle block (22), and the toggle block (22) is slidably arranged in the sliding hole (14).
6. The anti-locking structure according to claim 1, characterized in that: A touch member (7) is provided in the sliding cavity (11), and a matching portion (23) for engaging with the touch member (7) is provided on the side of the anti-lock sliding rod (2) facing the touch member (7).
7. The anti-locking structure according to claim 1, characterized in that: A first cover (13) is provided on a side of the first handle (1) away from the lock (5), and the first cover (13) covers the sliding cavity (11) and the first inner handle cavity (15) of the first handle (1). A first observation hole (131) is provided on the first cover (13), and a first color disk (33) is provided on one end of the drive sleeve (3) facing the first observation hole (131). When the drive sleeve (3) rotates, the first color disk (33) rotates to change the position exposed from the first observation hole (131).
8. A door lock mechanism, characterized in that: The invention comprises a second handle (8), a second inner handle head (81), a lock (5) and an anti-locking structure according to any one of claims 1 to 7, wherein the second handle (8) has a second inner handle cavity (84), the second inner handle head (81) is assembled in the second inner handle cavity (84), the second handle (8) and the first handle (1) are respectively rotatably connected to the two sides of the lock (5), the first handle (1) and the second handle (8) rotate synchronously, and the lock (5) is provided with a locking hole (51) on the side facing the first handle (1) for the anti-locking push rod (6) to extend into, and when the anti-locking push rod (6) enters the locking hole (51), the lock (5) and the first handle (1) and the second handle (8) are relatively fixed to achieve anti-locking.
9. A door lock mechanism according to claim 8, characterized in that: The invention also includes an unlocking rod (4), one end of which is provided with an unlocking hole (41), and the unlocking hole (41) is provided on the side of the second handle (8) away from the lock (5). The unlocking hole (41) is located in the second inner handle cavity (84) and is used to operate the unlocking hole (41) from the second handle (8). The other end of the unlocking rod (4) passes through the lock (5) and is driven and connected to the drive sleeve (3) to drive the drive sleeve (3) to rotate and unlock through the unlocking hole (41).
10. A door lock mechanism according to claim 9, characterized in that: A second cover (82) is provided on the side of the second handle (8) away from the lock (5), and the second cover (82) covers the second inner handle cavity (84) of the second handle (8). A second observation hole (83) is provided on the second cover (82), and a second color disk (42) is provided on the edge of the unlocking hole (41) facing the second observation hole (83). When the unlocking hole (41) rotates, the second color disk (42) rotates to change the position exposed from the second observation hole (83).