An ecological door lock

Abstract

The utility model relates to an ecological door lock, including an inner handle assembly, an outer handle assembly and a coupling shaft, wherein the inner handle assembly includes an inner handle seat, an inner handle, a coupling shaft seat A, and an anti-lock assembly; the outer handle assembly includes an outer handle seat, an outer handle, a coupling shaft seat B, and a key lock core assembly, the inner handle and the outer handle are linked, a relatively rotatable transmission core is also penetrated in the coupling shaft, the two ends of the transmission core are respectively connected to the anti-lock assembly and the key lock core assembly, the anti-lock assembly includes an anti-lock operation block and a lever that are linked and matched, the anti-lock operation block is rotatably sleeved outside the handle head A of the inner handle, one end of the transmission core is also rotatably penetrated in the internal chamber of the handle head A, the outer periphery of the handle head A is also provided with a notch communicating with the chamber, the lever is rotatably arranged in the notch, the inner end of the lever is sleeved outside the transmission core located in the chamber, and the outer end of the lever is connected to the anti-lock operation block, so that the anti-lock operation block is linked to the transmission core. The structure of the anti-lock assembly inside the door is simple to operate.

Description

Technical Field

[0001] The utility model relates to an ecological door lock. Background Art

[0002] A door lock is a commonly used door protection device to prevent illegal intrusion. It usually includes a lock body and door handles installed inside and outside the door, as well as a square shaft that enables the inner and outer door handles to be linked. The door lock is opened by turning the door handle to drive the lock tongue to retract into the lock body.

[0003] In the ecological door lock CN220580745U previously applied by the applicant, a specific structure of an inner handle assembly (1), an outer handle assembly (2), an operating group (6) and an anti-locking group (7) is disclosed. The operating group (6) includes: a toggle member (61) which is arranged in a sliding manner, and a drive head (62) which is arranged in a rotatable manner. The toggle member (61) can drive the drive head (62) to rotate. The toggle member (61) also has an anti-locking dial (611) exposed to the inner handle (12); the drive head (62) is provided with a guide groove (621), and the guide groove (621) is spirally distributed on the outer periphery of the drive head (62) along the axial direction of the drive head (62). The toggle member (61) has a guide groove (621) located on the guide groove (621). The positioning pin (612) in the slide groove (621) cooperates with the guide slide groove (621) to realize the conversion of the sliding of the toggle member (61) into the rotation of the driving head (62); the coupling seat A (13) has a guide frame (131), the guide frame (131) has a long groove (1311), the toggle member (61) has a guide block (614) penetrated and slidably arranged in the long groove (1311), and the positioning pin (612) is arranged on the inner side of the guide block (614). The precise cooperation of multiple components is required to change the linear operation into rotation to drive the movement of the transmission rod. Summary of the invention

[0004] Purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides a new ecological door lock, and the anti-locking component structure inside the door is simple to operate.

[0005] The technical solution of the utility model is as follows: an ecological door lock comprises an inner handle assembly, an outer handle assembly and a coupling shaft, wherein the inner handle assembly comprises: an inner handle seat for fixing on the inner surface of a door panel, an inner handle rotatably connected to the inner handle seat, a coupling shaft seat A, and an anti-lock assembly; the outer handle assembly comprises: an outer handle seat for fixing on the outer surface of the door panel, an outer handle rotatably connected to the outer handle seat, a coupling shaft seat B, and a key lock core assembly, wherein two ends of the coupling shaft are respectively inserted into the coupling shaft seats A and B, so that the inner handle and the outer handle can be linked, and a relatively rotatable transmission core is also passed through the coupling shaft, and two ends of the transmission core are respectively connected to the anti-lock assembly and the key lock core assembly,

[0006] The anti-lock component includes an anti-lock operating block and a lever that cooperate with each other. The anti-lock operating block is rotatably sleeved on the outside of the handle head A of the inner handle, and one end of the transmission core is also rotatably inserted into the internal chamber of the handle head A. The handle head A also has a notch on the outer periphery that connects to the chamber. The lever is rotatably set in the notch, the inner end of the lever is sleeved on the outside of the transmission core located in the chamber, and the outer end of the lever is connected to the anti-lock operating block, so that the anti-lock operating block is linked with the transmission core.

[0007] Preferably, the inner end of the lever has an axial hole, and the transmission core is axially inserted into the axial hole, so that the lever and the transmission core rotate synchronously in the circumferential direction, and an axial groove is axially arranged on the inner periphery of the anti-lock operating block, and the outer end of the lever is axially inserted into the axial groove, so that the lever and the anti-lock operating block rotate synchronously in the circumferential direction.

[0008] Preferably, the inner circumference of the anti-locking operation block is circular and the outer circumference is square, and the handle A has an assembly cylinder portion that is in rotational contact with the inner circumference of the anti-locking operation block.

[0009] By adopting the above technical solution: the utility model also provides a new internal anti-locking structure of the door. When the user rotates the anti-locking operation block on the inner handle, the anti-locking operation block is driven by the lever to rotate the transmission core together to achieve locking; when the user rotates the anti-locking operation block in the opposite direction, the anti-locking operation block is driven by the lever to reverse the transmission core together to achieve unlocking. The door can be locked or unlocked by directly rotating the anti-locking operation block. The structure is relatively novel and this lock can be installed forward or reverse.

[0010] Preferably, the key lock core assembly comprises a lock core, a lock element and a lock seat, the end portion of the handle head B of the outer handle has a cylindrical head rotatably arranged in the outer handle seat, the lock seat is rotatably arranged in the cylindrical head, the other end of the transmission core is also penetrated in the lock seat, and the two are circumferentially linked, the cylindrical head is provided with a through groove that penetrates inside and outside, the inner circumference of the outer handle seat is provided with a limiting groove, the lock element can be slidable inside and outside in the through groove to enter and exit the limiting groove on the outer handle seat, the outer circumference of the lock seat has a limiting curved surface that abuts against the lock element, the limiting curved surface comprises a first limiting concave surface and a second limiting concave surface, the two limiting concave surfaces have an arc-shaped transition, the first limiting concave surface is deeper than the second limiting concave surface,

[0011] When the lock seat rotates in the locking direction, the second limiting concave surface rotates to the inner side of the lock element, which can push the outer part of the lock element in the through groove to be stuck in the limiting groove, so as to limit the outer handle from rotating to open the door;

[0012] When the lock seat rotates in the unlocking direction, the first limiting concave surface rotates to the inner side of the lock element, and the lock element in the through groove can be retracted inward to escape from the limiting groove. At this time, the outer handle can be rotated to open the door.

[0013] Preferably, the locking element is a roller or a ball.

[0014] Preferably, the cylindrical head of handle B has two through grooves distributed at 180° on the circumference, and a locking piece is provided in each through groove. The inner circumference of the outer handle seat has two limiting grooves, and the lock seat has two limiting curved surfaces that can push the two locking pieces outward synchronously.

[0015] By adopting the above technical solution, the locking element is arranged in the through groove for rolling. As the lock seat rotates, the gap between the limiting curved surface and the inner side of the through groove changes. When the limiting curved surface rotates to make the locking element enter the second limiting concave surface, due to the reduction of the gap, the second limiting concave surface pushes the outside of the locking element into the limiting groove. At this time, the locking element is locked in the through groove and the limiting groove, that is, the outer handle and the outer handle seat are locked, and the outer handle cannot rotate. It is only necessary to align the through groove and the limiting groove in the locked state to ensure that the locking element can accurately enter the limiting groove each time without deviation, so that the stability of the utility model is improved; the lock seat rotates in the opposite direction, so that the locking element transitions from the second limiting concave surface to the first limiting concave surface. Due to the increase of the gap, the locking element can slide out of the limiting groove and cannot maintain the locking between the through groove and the limiting groove. The outer handle can rotate relative to the outer handle seat, and the locking element can roll along the inner wall of the outer handle seat in the through groove, thereby realizing unlocking.

[0016] Preferably, the through screws pass through the installation cover placed inside the door and are connected and fixed to the outer handle seat placed outside the door, and then the inner handle seat is installed outside the installation cover, and the inner handle seat and the installation cover are detachably connected.

[0017] Preferably, the inner side of the outer handle seat has an assembly hole for the through screw to be screwed in, the mounting cover has a through hole A for the through screw to pass through, and the outer periphery of the inner handle seat has a through hole B. After the screw passes through the through hole B on the handle seat, it is connected and fixed to the internal mounting cover.

[0018] By adopting the above technical solution, the installation cover separated from the inner handle seat is first placed in the door, and then the through screws are sequentially passed through the through hole A of the installation cover, the door, and the assembly hole on the outer handle seat, and then the inner handle seat is installed outside the installation cover, and then the screws are passed through the through hole B on the outer periphery of the inner handle seat and connected and fixed with the inner installation cover. The two ends of the through screws are covered by the inner and outer handle seats respectively to avoid exposure; and the through hole B is formed on the outer periphery of the inner handle seat, which can avoid the inner handle seat from having holes on the surface, and the product is beautiful.

[0019] Preferably, there is an assembly groove on the inner side of the inner handle seat, and the coupling seat A and the installation cover are sequentially installed in the assembly groove. The outer periphery of the installation cover and the groove wall of the assembly groove are also circumferentially positioned by the cooperation of the limiting protrusion and the recess, and are also clamped by the cooperation of the clamping block and the clamping mouth. The positioning between the installation cover and the inner handle seat facilitates the better penetration of the screws to fix the two.

[0020] Preferably, the end of the handle head A of the inner handle also has a cylindrical head, and the center of the inner and outer handle seats are provided with a mounting circular hole for the cylindrical head to be rotatably inserted, and the cylindrical head includes a plurality of arc-shaped claw pieces spaced apart in the circumferential direction, and the coupling seat A and the coupling seat B both have square holes for the coupling to pass through, and a plurality of arc-shaped grooves for the arc-shaped claw pieces to be inserted, and the handle and the coupling seat are inserted into the corresponding arc-shaped grooves along the axial direction to realize circumferential synchronous rotation, and the through groove on the handle head B is also formed by the gaps between adjacent arc-shaped claw pieces. The synchronous rotation of the handle and the coupling seat can be realized by inserting the arc-shaped claw pieces into the corresponding arc-shaped grooves, and the gaps between the adjacent arc-shaped claw pieces of the handle head B also constitute a through groove, which is convenient for the installation of the lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a cross-sectional view of the utility model;

[0023] Figure 3 It is a schematic diagram of the explosion of the structure of the utility model;

[0024] Figure 4 This is a structural diagram of the inner handle assembly of the utility model after removing the anti-locking operation block;

[0025] Figure 5 It is a cross-sectional view of the inner handle of the utility model;

[0026] Figure 6 This is a structural diagram of the anti-locking component of the utility model;

[0027] Figure 7 This is a structural diagram of the lever of the utility model;

[0028] Figure 8 This is a disassembled diagram of the inner handle seat, coupling seat A and installation cover of the utility model;

[0029] Fig. 9 This is an assembly diagram of the lock base and the external handle of the utility model;

[0030] Fig.10 This is a disassembled diagram of the external handle seat, the lock seat, and the coupling seat B of the utility model;

[0031] Fig.11 This is a diagram of the locked state of the key lock cylinder assembly of the utility model;

[0032] Fig.12 This is a diagram of the unlocked state of the key lock cylinder assembly of the utility model;

[0033] Fig.13 It is an assembly diagram of the lock seat, the external handle, and the external handle seat of the utility model;

[0034] Fig.14 It is a structural diagram of the inner handle and the outer handle of the utility model.

[0035] In the figure: inner handle assembly 1, inner handle seat 11, through hole B111, assembly groove 112, inner handle 12, handle head A121, assembly barrel 121a, chamber 1211, notch 1212, coupling seat A13, anti-lock assembly 14, anti-lock operation block 141, shaft groove 1411, lever 142, shaft hole 1421, installation cover 15, through hole A151, limiting protrusion 16, notch 17, clamping block 18, clamping socket 19;

[0036] External handle assembly 2, external handle seat 21, limiting groove 211, assembly hole 212, external handle 22, handle head B221, coupling seat B23, key lock cylinder assembly 24, lock cylinder 241, lock element 242, lock seat 243, limiting curved surface 2431, first limiting concave surface 24311, second limiting concave surface 24312;

[0037] Coupling 3, transmission core 4, cylindrical head A, through slot A1, arc-shaped claw piece A2, mounting circular hole B, square hole C, arc-shaped slot D. DETAILED DESCRIPTION

[0038] The technical scheme in this embodiment will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. 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 Figure 1-14 As shown, an ecological door lock of the utility model comprises an inner handle assembly 1, an outer handle assembly 2 and a coupling shaft 3, wherein the coupling shaft 3 is a square shaft, the inner handle assembly 1 comprises: an inner handle seat 11 for fixing on the inner surface of the door panel, an inner handle 12 rotatably connected to the inner handle seat 11, a coupling shaft seat A13, and an anti-lock assembly 14, wherein the coupling shaft seat A13 is placed in the inner handle seat 11 and is connected and positioned with the inner handle 12; the outer handle assembly 2 comprises: an outer handle seat 21 for fixing on the outside of the door panel, a inner handle 12 rotatably connected to the outer handle seat 21 The outer handle 22, the coupling seat B23, and the key lock core assembly 24 are provided. The coupling seat B23 is placed in the outer handle seat 21 and connected to the outer handle 22 for positioning. The two ends of the coupling 3 are respectively inserted into the coupling seats A and B, so that the inner handle 12 and the outer handle 22 can be linked. A rotatable transmission core 4 is also passed through the coupling 3. The two ends of the transmission core 4 are respectively connected to the anti-lock assembly 14 and the key lock core assembly 24. A reset member that can provide a rotation reset force for the handle is also provided. The reset member is a torsion spring, which can be installed on the coupling seat.

[0040] After the through screw passes through the installation cover 15 placed inside the door, it is connected and fixed with the outer handle seat 21 placed outside the door, and then the inner handle seat 11 is installed outside the installation cover 15, and the inner handle seat 11 and the installation cover 15 are detachably connected. The inner side of the outer handle seat 21 has an assembly hole 212 for the through screw to be screwed in, and the installation cover 15 has a through hole A151 for the through screw to pass through. The outer periphery of the inner handle seat 11 has a through hole B111. After the screw passes through the through hole B111 on the handle seat 21, it is connected and fixed with the internal installation cover 15. The inner side of the inner handle seat 11 has an assembly groove 112, and the coupling seat A13 and the installation cover 15 are sequentially installed in the assembly groove 112. The outer periphery of the installation cover 15 and the groove wall of the assembly groove 112 are also cooperated by the limiting protrusion 16 and the notch 17 to achieve circumferential positioning, and are also clamped by the clamping block 18 and the clamping port 19. The limiting protrusion 16 and the clamping block 18 are integrally arranged on the outer periphery of the installation cover 15 or on the groove wall of the assembly groove 112 .

[0041] The anti-lock component 14 includes an anti-lock operation block 141 and a lever 142 that cooperate with each other. The anti-lock operation block 141 is rotatably mounted on the outside of the handle head A121 of the inner handle 12. The inner circumference of the anti-lock operation block 141 is circular and the outer circumference is square. The handle head A121 has an assembly cylinder 121a that is in rotational contact with the inner circumference of the anti-lock operation block 141. One end of the transmission core 4 is also rotatably inserted into the internal chamber 1211 of the handle head A121. The handle head A121 also has a notch 1212 on the outer circumference that connects to the chamber 1211. The lever 142 is rotatably set in the notch 1212. The inner end of the lever 142 is mounted on the outside of the transmission core 4 located in the chamber 1211, and the outer end of the lever 142 is connected to the anti-lock operation block 141, so that the anti-lock operation block 141 is linked with the transmission core 4. Specifically, the inner end of the lever 142 has an axial hole 1421, and the transmission core 4 axially penetrates the axial hole 1421, so that the lever 142 and the transmission core 4 rotate synchronously in the circumferential direction. The inner periphery of the anti-locking operation block 141 has an axial groove 1411 arranged in the axial direction, and the outer end of the lever 142 is axially inserted into the axial groove 1411, so that the lever 142 and the anti-locking operation block 141 rotate synchronously in the circumferential direction.

[0042] The key lock core assembly 24 includes a lock core 241, a lock element 242 and a lock seat 243. The lock element 242 is a roller or a ball. The end of the handle head B221 of the outer handle 22 has a cylindrical head A rotatably arranged in the outer handle seat 21. The lock seat 243 is rotatably arranged in the cylindrical head A. The other end of the transmission core 4 is also penetrated by the lock seat 243. The two are linked. The lock core 241 is installed inside the handle head B221 of the outer handle 22 and can drive the transmission core 4 to rotate. The lock core 241 has a keyhole for inserting a key. The outer side of the outer handle is opened at the corresponding keyhole position. The cylindrical head A is provided with a through groove A1 which is connected inside and outside, and a limiting groove 211 is provided on the inner circumference of the outer handle seat 21. The locking member 242 is slidably arranged in the through groove A1 to enter and exit the limiting groove 211 on the outer handle seat 21. The outer circumference of the lock seat 243 is provided with a limiting curved surface 2431 which abuts against the locking member 242. The limiting curved surface 2431 includes a first limiting concave surface 24311 and a second limiting concave surface 24312. The two limiting concave surfaces have an arc-shaped transition. The first limiting concave surface 24311 is deeper than the second limiting concave surface 24312.

[0043] When the lock base 243 rotates in the locking direction, the second limiting concave surface 24312 rotates to the inner side of the lock member 242, and can push the outer part of the lock member 242 in the through groove A1 to be stuck in the limiting groove 211, so as to limit the outer handle from rotating to open the door;

[0044] When the lock base 243 rotates in the unlocking direction, the first limiting concave surface 24311 rotates to the inner side of the lock member 242, and the lock member 242 in the through groove A1 can retract inward to escape from the limiting groove 211, and the outer handle can be rotated to open the door.

[0045] Specifically, the cylindrical head A of the handle B has two through grooves A1 distributed at 180° on the circumference, and a locking piece 242 is provided in each through groove. The inner circumference of the outer handle seat 21 has two limiting grooves 211, and the lock seat 243 has two limiting curved surfaces 2431, which can push the two locking pieces 242 outward synchronously.

[0046] Specifically, the end of the handle head A121 of the inner handle 12 also has a cylindrical head A, and the centers of the inner and outer handle seats are provided with mounting circular holes B for the cylindrical head A to be rotatably inserted into. The cylindrical head A includes a plurality of arc-shaped claw pieces A2 spaced apart in the circumferential direction. The coupling seat A13 and the coupling seat B23 both have square holes C for the coupling shaft 3 to pass through, and a plurality of arc-shaped grooves D for the arc-shaped claw pieces A2 to be inserted into. The handle and the coupling seat are axially inserted into the corresponding arc-shaped grooves D to achieve circumferential synchronous rotation. The through groove A1 on the handle head B221 is also composed of the gaps between adjacent arc-shaped claw pieces A2.

[0047] When the handle of the utility model is installed on the door, the installation cover 15 separated from the inner handle seat 11 is first placed in the door, and then the through screws are sequentially passed through the through hole A151 of the installation cover 15, the door, and the assembly hole 212 on the outer handle seat 21, and then the inner handle seat 11 is installed outside the installation cover 15. The outer periphery of the installation cover 15 and the groove wall of the assembly groove 112 are also matched by the limiting protrusion 16 and the notch 17 to achieve circumferential positioning, and are also matched by the clamping block 18 and the clamping port 19. After that, the screws are passed through the through hole B111 on the outer periphery of the inner handle seat 11 and connected and fixed with the internal installation cover 15. The two ends of the through screws are covered by the inner and outer handle seats respectively to avoid exposure; and the through hole B111 is formed on the outer periphery of the inner handle seat 11, which can avoid the inner handle seat 11 from having a hole on the surface.

[0048] When assembling the inner handle assembly 1, the lever 142 is installed into the notch 1212 of the handle head A121, one end of the transmission core 4 is passed through the internal chamber 1211 of the handle head A121, and the shaft hole 1421 of the inner end of the lever 142 is axially penetrated, and the anti-locking operation block 141 is sleeved on the assembly barrel 121a of the handle head A121, so that the outer end of the lever 142 is axially inserted into the shaft groove 1411, and the anti-locking operation block 141 and the transmission core 4 rotate synchronously in the circumferential direction, and then the inner handle seat 11 is sleeved on the cylindrical head A of the handle head A121, and then the coupling seat A13 and the mounting cover 15 are installed;

[0049] When assembling the outer handle assembly 2, the lock core 241 is installed into the handle head B221 of the outer handle 22, the lock seat 243 is installed into the cylindrical head A of the handle head B221, and the lock element 242 is installed into the through groove A1 formed by the gap between adjacent arc-shaped claw pieces A2. Then, the outer handle seat 21 is mounted on the cylindrical head A, and then the coupling seat B23 is installed.

[0050] The anti-locking working principle of the utility model is:

[0051] When the door needs to be locked, the user rotates the locking block 141 on the inner handle 12, and the locking block 141 is driven by the lever 142 to rotate the transmission core 4 to achieve locking. Specifically, the transmission core 4 drives the lock seat 243 to rotate, so that the lock element 242 transitions from the first concave limit surface 24311 to the second concave limit surface 24312. Due to the reduced gap, the lock element 242 can be pushed into the limit groove 211. At this time, the lock element 242 is locked in the through groove 241 and the limit groove 211, and the outer handle 22 cannot rotate relative to the outer handle seat 21. When the outer handle 22 is locked, the inner handle 12 is also locked to achieve locking inside the door.

[0052] When the user rotates the anti-locking operation block 141 in the reverse direction, the anti-locking operation block 141 is driven by the lever 142 to reversely drive the transmission core 4 to achieve unlocking. Specifically, the transmission core 4 drives the lock seat 243 to rotate in the reverse direction, so that the lock element 242 transitions from the second position-limiting concave surface 24312 to the first position-limiting concave surface 24311. Due to the increase in the gap, the lock element 242 can escape from the position-limiting groove 41 and cannot maintain the locking between the outer handle 22 and the outer handle seat 21. The lock element 242 in the through groove 241 can roll along the inner wall of the outer handle seat 21, and the outer handle 22 can rotate, and the inner handle 12 can also rotate to achieve unlocking.

[0053] When unlocking the door from outside, the user inserts the key and turns it, which can drive the transmission core 4 and the lock seat 243 to rotate, and also makes the lock element 242 transition from the second limiting concave surface 24312 to the first limiting concave surface 24311. Due to the increase in the gap, the lock element 242 can escape from the limiting groove 41 and cannot maintain the lock between the outer handle 22 and the outer handle seat 21. The lock element 242 in the through groove 241 can roll along the inner wall of the outer handle seat 21, the outer handle 22 can rotate, and the inner handle 12 can also rotate to achieve unlocking.

[0054] The keyhole is a "slotted keyhole". In an emergency, you can use a coin or a screwdriver as a key, insert it into the "slotted keyhole" of the lock cylinder and turn it to unlock it. You can perform emergency unlocking operations or lock the lock.

[0055] It should be noted that in the description of the present utility model, all directional indications such as up, down, front, back... are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0056] In addition, in the present invention, the descriptions such as "first", "second", "A", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. In the description of the present invention, the meaning of "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0057] In the description of the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "couple", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An ecological door lock, comprising an inner handle assembly (1), an outer handle assembly (2) and a coupling (3), wherein the inner handle assembly (1) comprises: An inner handle seat (11) for fixing on the inner surface of the door panel, an inner handle (12) rotatably connected to the inner handle seat (11), a coupling seat A (13), and an anti-locking assembly (14); the outer handle assembly (2) comprises: an outer handle seat (21) for fixing on the outer surface of the door panel, an outer handle (22) rotatably connected to the outer handle seat (21), a coupling seat B (23), and a key lock core assembly (24), the two ends of the coupling (3) are respectively inserted into the coupling seats A and B, so that the inner handle (12) and the outer handle (22) can be linked, and a relatively rotatable transmission core (4) is also inserted in the coupling (3), and the two ends of the transmission core (4) are respectively connected to the anti-locking assembly (14) and the key lock core assembly (24), characterized in that: The reverse locking assembly (14) comprises a reverse locking operation block (141) and a lever (142) which cooperate with each other. The reverse locking operation block (141) is rotatably sleeved on the outside of a handle head A (121) of the inner handle (12). One end of a transmission core (4) is also rotatably inserted into an internal chamber (1211) of the handle head A (121). The outer periphery of the handle head A (121) is also provided with a notch (1212) which is connected to the chamber (1211). The lever (142) is rotatably arranged in the notch (1212). The inner end of the lever (142) is sleeved on the outside of the transmission core (4) located in the chamber (1211). The outer end of the lever (142) is connected to the reverse locking operation block (141), so that the reverse locking operation block (141) and the transmission core (4) are linked.

2. An ecological door lock according to claim 1, characterized in that: The inner end of the lever (142) is provided with an axial hole (1421), and the transmission core (4) is axially inserted into the axial hole (1421) and rotates synchronously in the circumferential direction; the inner circumference of the anti-locking operation block (141) is provided with an axial groove (1411) arranged in the axial direction, and the outer end of the lever (142) is axially inserted into the axial groove (1411) and rotates synchronously in the circumferential direction.

3. The ecological door lock according to claim 1, characterized in that: The inner circumference of the anti-locking operation block (141) is circular and the outer circumference is square. The handle A (121) has an assembly tube portion (121a) that is in rotational contact with the inner circumference of the anti-locking operation block (141).

4. An ecological door lock according to claim 1, 2 or 3, characterized in that: The key lock core assembly (24) comprises a lock core (241), a lock element (242) and a lock seat (243); the end of the handle head B (221) of the outer handle (22) has a cylindrical head (A) rotatably arranged in the outer handle seat (21); the lock seat (243) is rotatably arranged in the cylindrical head (A); the other end of the transmission core (4) is also penetrated through the lock seat (243); the two are circumferentially linked; the cylindrical head (A) is provided with a through groove (A1) which is connected inside and outside; the inner circumference of the outer handle seat (21) is provided with a limit groove ( 211), the locking member (242) is slidably arranged in the through groove (A1) to enter and exit the limiting groove (211) on the outer handle seat (21), the locking seat (243) has a limiting curved surface (2431) on the outer periphery thereof, which is against the locking member (242), the limiting curved surface (2431) comprises a first limiting concave surface (24311) and a second limiting concave surface (24312), the two limiting concave surfaces have an arc-shaped transition, the first limiting concave surface (24311) is deeper than the second limiting concave surface (24312), When the lock seat (243) rotates in the locking direction, the second limiting concave surface (24312) rotates to the inner side of the lock element (242), and can push the outer part of the lock element (242) in the through groove (A1) to be clamped into the limiting groove (211), so as to limit the rotation of the outer handle to open the door; When the lock seat (243) rotates in the unlocking direction, the first limiting concave surface (24311) rotates to the inner side of the lock member (242), and the lock member (242) in the through groove (A1) can be retracted inward to escape from the limiting groove (211), and the outer handle can be rotated to open the door.

5. The ecological door lock according to claim 4, characterized in that: The locking element (242) is a roller or a ball.

6. The ecological door lock according to claim 4, characterized in that: The cylindrical head (A) of the handle B has two through grooves (A1) distributed at 180 degrees in the circumferential direction, and a locking element (242) is provided in each through groove. The inner circumference of the outer handle seat (21) has two limiting grooves (211), and the lock seat (243) has two limiting curved surfaces (2431) that can push the two locking elements (242) outward synchronously.

7. An ecological door lock according to claim 1, 2 or 3, characterized in that: The through screws pass through the installation cover (15) placed inside the door and are connected and fixed to the outer handle seat (21) placed outside the door, and then the inner handle seat (11) is installed outside the installation cover (15), and the inner handle seat (11) and the installation cover (15) are detachably connected.

8. The ecological door lock according to claim 7, characterized in that: The inner side of the outer handle seat (21) is provided with an assembly hole (212) for screwing in a through-hole screw, the mounting cover (15) is provided with a through hole A (151) for the through-hole screw to pass through, and the outer periphery of the inner handle seat (11) is provided with a through hole B (111), and the screw passes through the through hole B (111) on the handle seat (21) and is connected and fixed to the internal mounting cover (15).

9. The ecological door lock according to claim 7, characterized in that: An assembly groove (112) is provided on the inner side of the inner handle seat (11), and the coupling seat A (13) and the installation cover (15) are sequentially installed in the assembly groove (112). The outer periphery of the installation cover (15) and the groove wall of the assembly groove (112) are also positioned in the circumferential direction through the cooperation of the limiting protrusion (16) and the recess (17), and are also clamped through the cooperation of the clamping block (18) and the clamping socket (19).

10. The ecological door lock according to claim 4, characterized in that: The end of the handle head A (121) of the inner handle (12) also has a cylindrical head (A), and the center of the inner and outer handle seats are both provided with a mounting circular hole (B) for the cylindrical head (A) to be rotatably inserted. The cylindrical head (A) includes a plurality of arc-shaped claw pieces (A2) spaced apart in the circumferential direction. The coupling seat A (13) and the coupling seat B (23) both have a square hole (C) for the coupling shaft (3) to pass through, and a plurality of arc-shaped grooves (D) for the arc-shaped claw pieces (A2) to be inserted. The handle and the coupling seat are inserted into the corresponding arc-shaped grooves (D) along the axial direction to realize circumferential synchronous rotation. The through groove (A1) on the handle head B (221) is also formed by the gaps between adjacent arc-shaped claw pieces (A2).

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