Lock catch structure and door lock

Abstract

The utility model discloses a lock catch structure and a door lock, and relates to the technical field of door locks, the lock catch structure comprises a part shell, fixed connection holes are formed in the two sides of the part shell, and a sliding rod is fixedly arranged at the bottom in a cavity of the part shell; the lock cylinder structure comprises an outer ring arranged on one side of the inner wall of the part shell, an inner ring is arranged on the inner surface of the outer ring, and a first push block is fixedly arranged at the front end of the inner ring. The back locking mechanism comprises a back locking block arranged on the surface of the sliding rod in a sliding mode, elastic grooves are formed in the two sides of the inner wall of the back locking block, spring rods are fixedly arranged in the two elastic grooves, and stress plates are arranged on the surfaces of the two spring rods. The stability of the lock cylinder is improved, and the anti-theft effect is improved.

Description

Technical Field

[0001] The present application relates to the field of door lock technology, and in particular to a lock structure and a door lock. Background Art

[0002] At present, with the development of smart door locks, the way of opening doors is becoming more and more convenient and quick. Passwords, fingerprints, facial recognition, voice recognition or card swiping are mostly used to open the door. However, according to relevant industry requirements, whether it is a traditional mechanical lock or a smart door lock, in order to ensure safe unlocking and prevent the circuit system from getting out of control, it is necessary to increase the design of a mechanical key unlocking function. Commonly used mechanical locks do not have an insurance function, resulting in poor anti-theft performance.

[0003] For example, patent number CN202120418711.6 discloses a door lock structure that is easy to install, including a door panel, a door frame, and a door lock. The door lock includes a lock body, a buckle box, and a buckle plate, wherein the buckle box and the buckle plate are arranged on the door frame, and the lock body is arranged on the door panel; wherein a mounting hole is provided on the door panel, and the length direction of the mounting hole is parallel to the height direction of the door frame; the buckle box is arranged in the mounting hole, and the buckle box moves along the length direction of the mounting hole, and the length direction of the mounting hole is greater than the height of the buckle box; a locking member is arranged in the mounting hole, and the locking member is used to lock the buckle box in a suitable position in the mounting hole. The above device has the following deficiencies in actual use:

[0004] The device uses a key to be inserted into the lock hole from the buckle box, thereby lifting the lock column to separate the lock column from the lock core, thereby controlling the rotation of the lock core to achieve the effect of unlocking. However, it is too simple to only use the lifting of the lock column as a method of opening and closing the lock core. Only a small amount of external interference can loosen the lock core, thereby reducing the difficulty of unlocking, and the anti-theft effect is poor. Utility Model Content

[0005] In order to improve the problem that the lock core of conventional mechanical locks is easily loosened and the anti-theft effect is poor, the present application provides a lock structure and a door lock.

[0006] The present application provides a lock structure and a door lock adopting the following technical solutions:

[0007] A lock structure comprises a part housing, both sides of the part housing are provided with fixing holes, and a sliding rod is fixed at the bottom of the part housing cavity;

[0008] The lock core structure comprises an outer ring arranged on one side of the inner wall of the part housing, an inner ring is arranged on the inner surface of the outer ring, and a first push block is fixedly arranged at the front end of the inner ring;

[0009] The anti-locking mechanism comprises an anti-locking block slidably arranged on the surface of the slide rod, elastic grooves are provided on both sides of the inner wall of the anti-locking block, spring rods are fixed in the two elastic grooves, and force plates are provided on the surfaces of the two spring rods.

[0010] By adopting the above technical solution, a person uses a key to insert the key from the first lock plate into the installation groove until it is installed inside the shell, and the end of the key is plugged into the lock core structure. When the key is rotated, the inner ring in the lock core structure is driven to rotate, thereby controlling the protrusion and retraction of the anti-locking mechanism, thereby completing the opening and locking of the door.

[0011] Preferably, a first lock plate and a second lock plate are respectively fixed on both sides of the part housing, a keyhole is opened in the middle of the first lock plate, two fixing tubes are fixed on opposite sides of the first lock plate and the second lock plate, and a door handle is rotatably provided on the opposite sides of the first lock plate and the second lock plate, and the end of the door handle movably passes through the cavity of the part housing and is fixed with an arc-shaped connecting block.

[0012] By adopting the above technical solution, four fixed connections are located in the part housing and connected in pairs, and fixed with screws, so that the first lock plate, the second lock plate and the part housing are fixed as a whole, thereby improving stability, and the door handle is connected to the lock head through an arc-shaped connecting block. When a person turns the door handle, the extension and retraction of the lock head can be controlled to achieve the closing of the door body.

[0013] Preferably, a clamping block is fixedly provided on one side of the part housing cavity close to the second lock plate, and a first lock groove and a second lock groove are respectively opened on one side of the part housing adjacent to the second lock plate, and transverse grooves are fixedly provided on both sides of the second lock groove in the part housing cavity.

[0014] By adopting the above technical solution, the first lock groove and the second lock groove are respectively reserved spaces for the protruding snap connection of the anti-locking block and the lock head, and the transverse groove guides the protrusion of the lock head.

[0015] Preferably, the lock core structure also includes a plurality of first top grooves opened on the top of the inner wall of the outer ring, and a first lock column is movably arranged in each of the first top grooves; a plurality of second top grooves are opened on the inner wall of the inner ring, and a second lock column is movably arranged in each of the second top grooves; and a card slot is opened on one side of the outer surface of the inner ring.

[0016] By adopting the above technical solution, the first lock column is pressed into the second top groove to abut against the second lock column, thereby forming an integral fixation of the outer ring and the inner ring, preventing the inner ring from rotating to open the door lock.

[0017] Preferably, the anti-locking mechanism includes a slider fixed at the bottom of the anti-locking block, the slider is movably abutted against the sliding rod, a plurality of protrusions are fixed on the inner wall of the anti-locking block and the upper end surface of the force-bearing plate, a rotating block is rotatably provided on one side of the anti-locking block, and a limit block is fixed at the end of the rotating block.

[0018] By adopting the above technical solution, the protrusion is subjected to pressure to apply thrust to the force-bearing plate, so that the anti-locking block moves along the surface of the slide rod and finally protrudes from the door panel arranged outside the part housing for clamping.

[0019] Preferably, a lock head is movably provided on one side opposite to the two transverse grooves, and two sides of the lock head located in the part housing are respectively fixedly connected to two arc-shaped connecting blocks one by one.

[0020] By adopting the above technical solution, the lock is pushed and slides out along the two side grooves, thereby initially closing the door body. At the same time, the arc-shaped connecting block connects the two door handles and the lock, and the door handle is turned to control the lock to open and close.

[0021] Preferably, a reverse locking handle is movably provided on the surface of the second lock plate, the reverse locking handle passes through the second lock plate and the lock hole, is located in the part housing cavity and is fixed with a second push block.

[0022] By adopting the above technical solution, the anti-locking handle drives the second push block to rotate, thereby applying a thrust to the force-bearing plate to push the anti-locking block out, thereby realizing the anti-locking function.

[0023] A door lock includes the above-mentioned lock hole structure and a door body, wherein the two sides of the door body are respectively fixed to the first lock plate and the second lock plate, the door body is provided with an installation groove between the first lock plate and the second lock plate, a lock hole is provided on the side of the installation groove close to the second lock plate, side grooves are provided at both upper and lower ends of the installation groove, and the part housing can be removably installed in the installation groove.

[0024] By adopting the above technical solution, the keyhole passes through the first lock plate and is connected to the lock core structure, which is convenient for the key to be inserted into the part housing. At the same time, the first lock plate, the second lock plate and the part housing are fixed as a whole, which is convenient for personnel to disassemble.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The first lock column is inserted into the second top groove and abuts against the second lock column to form a longitudinal fixation for the inner ring. The limit block is inserted into the card slot and abuts against the second lock column, thereby horizontally fixing the inner ring, effectively improving the stability of the inner ring and the outer ring, and increasing the difficulty of unlocking without an adapter key, with a significant anti-theft effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a three-dimensional schematic diagram of this application;

[0028] Figure 2 This is a three-dimensional exploded view of this application;

[0029] Figure 3 This is the internal diagram of the part housing for this application;

[0030] Figure 4 This is an exploded side cross-sectional view of the lock core structure of this application;

[0031] Figure 5This is an exploded diagram of the anti-locking mechanism for this application.

[0032] Reference numerals: 1. door body;

[0033] 2. First lock plate; 21. Keyhole; 22. Second lock plate; 23. Connecting tube; 24. Door handle; 25. Arc-shaped connecting block;

[0034] 3. Mounting slot; 31. Lock hole; 32. Side slot;

[0035] 4. Part housing; 41. Fixing hole; 42. Sliding rod; 43. Clamping block; 44. First locking groove; 45. Second locking groove; 46. Horizontal groove;

[0036] 5. Lock core structure; 51. Outer ring; 52. Inner ring; 53. First top groove; 54. First lock column; 55. Second top groove; 56. Second lock column; 57. First push block; 58. Card slot;

[0037] 6. Anti-locking mechanism; 61. Anti-locking block; 62. Sliding block; 63. Spring groove; 64. Spring rod; 65. Force plate; 66. Protrusion; 67. Rotating block; 68. Limiting block;

[0038] 7. Locking head; 8. Anti-locking handle; 9. Second push block. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1 —5 Provide further details of this application.

[0040] The embodiments of the present application disclose a lock structure and a door lock.

[0041] Example 1

[0042] Reference Figure 1 , 2 A lock structure includes a door body 1, a mounting groove 3 is provided inside the door body 1, a lock hole 31 is provided on one side of the inner wall of the mounting groove 3, the mounting groove 3 and the lock hole 31 are adjacent to the side wall of the door body 1 and communicate with the outside, and side grooves 32 are provided on both sides of the through-opening, a part housing 4 is fixed in the mounting groove 3, the part housing 4 is T-shaped as a whole, and through holes are provided on the T-shaped protrusions on both sides, and the through holes and the side grooves 32 are connected by screws to form a detachable fixation;

[0043] Through the above-mentioned arrangement, the installation groove 3 is opened to reserve space for the installation of the part housing 4, and at the same time the lock hole 31 is connected to the inside of the part housing 4, so that the anti-lock handle 8 can be inserted into the inside of the part housing 4 through the lock hole 31 to open and close the door lock. The part housing 4 is inserted into the side of the door body 1 through the installation groove 3 and is fixed to the door body 1 with screws, which hides the internal structure and is convenient for personnel to disassemble and maintain.

[0044] Reference Figure 2 A first lock plate 2 is fixedly arranged on one side of the outer surface of the door body 1 located at the part housing 4, and a second lock plate 22 is fixedly arranged on the other side of the door body 1 away from the first lock plate 2. Two fixing tubes 23 are fixedly arranged at the upper and lower ends of the opposite side of the first lock plate 2 and the second lock plate 22. The four fixing tubes 23 penetrate the door body 1 and the side walls of the part housing 4 in pairs, and are located in the cavity of the part housing 4 and are aligned in pairs. The two fixing tubes 23 of the second lock plate 22 are screwed in to form a detachable fixation. A rectangular keyhole 21 is opened in the middle of the first lock plate 2, and a door handle 24 is rotatably arranged on the surface of the first lock plate 2 and the second lock plate 22 away from the door body 1. The two door handles 24 are L-shaped as a whole, and the L-shaped protruding part is located on the outside. The rod parts of the two door handles 24 are both movably penetrated through the first lock plate 2 and the second lock plate 22, and then movably penetrated through the part housing 4 and located in its cavity, and the ends of the two door handles 24 are welded and fixed with an arc-shaped connecting block 25.

[0045] It should be noted that the width of the keyhole 21 is consistent with the maximum width of the adapted key, the two arc-shaped connecting blocks 25 are both 180° arc-shaped, and springs are transversely fixed at the ends of the arcs.

[0046] Through the above-mentioned arrangement, the first lock plate 2 and the second lock plate 22 are respectively located on both sides of the door body 1, and the door handle 24 passes through the first lock plate 2 and the second lock plate 22 to be connected to the inside of the part housing 4, thereby preventing the door handle 24 from rotating for a long time and causing wear to the door body 1. At the same time, four fixing tubes 23 pass through the part housing 4 and are fixed with screws, so that the first lock plate 2, the second lock plate 22 and the part housing 4 can be detachably fixed as a whole.

[0047] Reference Figure 5 , fixing holes 41 are provided at the positions where the two sides of the part housing 4 are aligned with the fixing tube 23, and the fixing tube 23 is movably inserted in the fixing hole 41, a groove is provided at the bottom of the cavity of the part housing 4, and a sliding rod 42 is fixed in the groove, a clamping block 43 is fixed on the side of the cavity of the part housing 4 away from the first lock plate 2, and a second locking groove 45 and a first locking groove 44 are respectively provided at the upper and lower ends of the part housing 4 located on the adjacent side of the clamping block 43, and the first locking groove 44 and the second locking groove 45 penetrate the part housing 4 and communicate with the outside, and transverse grooves 46 are welded and fixed on both sides of the inner surface of the part housing 4 on one side of the second locking groove 45, and a lock head 7 is slidably provided in the transverse groove 46, and the lock head 7 is located in the part housing 4. The two ends of the end are fixed to the spring ends of the two arc-shaped connecting blocks 25 one by one.

[0048] Through the above arrangement, when a person rotates the door handle 24, the door handle 24 drives the arc-shaped connecting block 25 to rotate, so that the lock head 7 slides along the two transverse grooves 46, and the lock head 7 slides forward so that the front end protrudes from the second lock groove 45 and is engaged with the external door panel lock groove, thereby completing the initial closure of the door body 1.

[0049] Reference Figure 3 , 4 The lock core structure 5 includes an outer ring 51 movably inserted in a groove on one side of the part housing 4, and the surface of the outer ring 51 is flush with the outer surface of the part housing 4, a plurality of first top grooves 53 are provided at the top of the inner surface of the outer ring 51, a first lock column 54 is movably inserted in the first top groove 53, and the top of the first lock column 54 is elastically connected to the top of the first top groove 53 through a spring, an inner ring 52 is inserted on the inner surface of the outer ring 51, a second top groove 55 is provided on the inner surface of the inner ring 52, and except for the last second top groove 55, the rest are aligned with the center of the first top groove 53, a second lock column 56 is movably inserted in the second top groove 55, a spring is arranged around the top of the outer surface of the second lock column 56, and the spring is fixedly connected to the annular groove in the second top groove 55, and a first push block 57 in the shape of a barb is fixedly provided at the front end of the inner ring 52; a card groove 58 is provided on the outer surface of the inner ring 52 at the last second top groove 55.

[0050] It should be noted that there are at least three first top grooves 53, and the number of second top grooves 55 is one more than the first top groove 53. A rectangular through hole is opened in the middle of the inner ring 52, and the width of the through hole is consistent with the width of the keyhole 21. The key size needs to be able to be completely inserted into the bottom of the through hole of the inner ring 52, and the key tooth surface is engaged with the arrangement of multiple second lock columns 56.

[0051] Through the above arrangement, a person inserts the key from the keyhole 21 into the through hole of the inner ring 52, thereby lifting the second lock column 56. The second lock column 56 is lifted and moves upward, thereby applying a thrust to the first lock column 54, thereby pushing the first lock column 54 out of the second top groove 55. The key then rotates to control the inner ring 52 to rotate, driving the first push block 57 to rotate and interact with the subsequent anti-locking mechanism 6. At the same time, the last second top groove 55 is connected to the card slot 58 to be carded with the subsequent limit block 68, thereby increasing the longitudinal fixation of the inner ring 52.

[0052] Reference Figure 3 , 4 5. The anti-locking mechanism 6 includes a slider 62 slidably connected to the surface of the slide rod 42, and an anti-locking block 61 is welded and fixed on the upper end surface of the slider 62. The anti-locking block 61 is U-shaped as a whole, and elastic grooves 63 are opened on both sides of the inner surface of the U-shape. Spring rods 64 are fixed in the two elastic grooves 63. The spring rods 64 are connected by a smooth rod and a spring. A force plate 65 is fixed in the middle of the spring on the surface of the two spring rods 64. The upper end surfaces of the anti-locking block 61 and the force plate 65 are fixed with protrusions 66 (the number of protrusions 66 is three). A rotating block 67 is rotatably provided on one side of the anti-locking block 61 close to the inner ring 52. The rotating block 67 is arc-shaped as a whole, and the middle part of the arc is rotatably connected to the inner wall of the part housing 4. A limiting block 68 is welded and fixed to the arc end of the rotating block 67. Under normal conditions, the limiting block 68 is inserted into the slot 58 and abuts against the second lock column 56.

[0053] It should be noted that one end of the anti-locking block 61 is inserted into the first locking groove 44 , and under normal conditions, the insertion end surface of the anti-locking block 61 is flush with the same side surface of the part housing 4 .

[0054] Through the above arrangement, the first push block 57 rotates clockwise, thereby abutting against one side of the protrusion 66, and then applying thrust and downward pressure to the force-bearing plate 65. The force-bearing plate 65 is pushed by the thrust to push the anti-locking block 61 to slide out to one side, so that the front end of the anti-locking block 61 protrudes from the first locking groove 44. At the same time, the force-bearing plate 65 is pressed downward by pressure. As the first push block 57 rotates and disengages, the force-bearing plate 65 is rebounded by the spring rod 64 and returns to the normal position.

[0055] Reference Figure 3 , 5 A reverse locking handle 8 is movably inserted in the middle of the side surface of the second lock plate 22 away from the door body 1. The rotating rod part of the reverse locking handle 8 passes through the second lock plate 22 and the lock hole 31 so as to be located in the part housing 4. The reverse locking handle 8 is located at the end part in the part housing 4 and is fixed with a second push block 9. Under normal circumstances, the second push block 9 is aligned with the first push block 57.

[0056] With the above arrangement, the anti-locking handle 8 is rotated to make the second push block 9 rotate synchronously. The rotation of the second push block 9 applies thrust and downward pressure to the force plate 65. The force plate 65 is pushed to push the anti-locking block 61 to one side, so that the front end of the anti-locking block 61 protrudes from the first lock groove 44. At the same time, the force plate 65 is pressed downward by pressure. As the first push block 57 rotates and disengages, the force plate 65 is rebounded by the spring rod 64 and returns to the normal position, thereby completing the function of anti-locking inside the door.

[0057] Reference Figure 1 , 2 3. The first lock plate 2 and the second lock plate 22 on both sides of the door body 1 are aligned with the center of the part housing 4. The two door handles 24 respectively penetrate the first lock plate 2 and the second lock plate 22 and are located in the part housing 4 and fixed to the lock head 7. The keyhole 21 penetrates the first lock plate 2 and is connected to the lock core structure 5 so that the key can be inserted. At the same time, the first lock plate 2, the second lock plate 22 and the part housing 4 are fixed as a whole to facilitate disassembly by personnel.

[0058] Among them, the device also includes a door handle 24 and an anti-lock handle 8, which are common parts and their structures are not described in detail.

[0059] The implementation principle of a lock buckle structure and a door lock of the embodiment of the present application is as follows: when using the door lock, a person outside the door inserts a key from the keyhole 21 into the through hole of the inner ring 52. As the key is inserted, the tooth surface of the key pushes up the second lock column 56, and the second lock column 56 pushes upward until it is flush with the outer surface of the inner ring 52. At the same time, as the second lock column 56 is pushed out, a thrust is applied to the first lock column 54, so that the first lock column 54 is pushed out of the range of the second top groove 55.

[0060] The locking block 61 is then moved out of the locking groove 64 and the locking nut 63 is engaged with the locking nut 66. The locking nut 61 is engaged with the locking nut 66 and the locking nut 63 is engaged with the locking nut 66.

[0061] At the same time, the person is inside the door and turns the anti-lock handle 8 to rotate counterclockwise, thereby driving the second push block 9 to rotate. The second push block 9 rotates counterclockwise and finally abuts against and pushes the protrusion 66, thereby completing the same operation as the first push block 57 and realizing the function of anti-locking the door.

[0062] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A locking structure, characterized in that: It comprises a part housing (4), both sides of which are provided with fixing holes (41), and a sliding rod (42) is fixedly provided at the bottom of the cavity of the part housing (4); The lock core structure (5) comprises an outer ring (51) arranged on one side of the inner wall of the part housing (4), an inner ring (52) is arranged on the inner surface of the outer ring (51), and a first push block (57) is fixedly arranged at the front end of the inner ring (52); The anti-locking mechanism (6) comprises an anti-locking block (61) slidably arranged on the surface of the slide rod (42), elastic grooves (63) are provided on both sides of the inner wall of the anti-locking block (61), spring rods (64) are fixedly arranged in the two elastic grooves (63), and force-bearing plates (65) are arranged on the surfaces of the two spring rods (64).

2. A locking structure according to claim 1, characterized in that: A first lock plate (2) and a second lock plate (22) are fixedly provided on both sides of the part housing (4), a keyhole (21) is provided in the middle of the first lock plate (2), two fixing tubes (23) are fixedly provided on opposite sides of the first lock plate (2) and the second lock plate (22), a door handle (24) is rotatably provided on opposite sides of the first lock plate (2) and the second lock plate (22), the end of the door handle (24) movably passes through the cavity of the part housing (4) and is fixedly provided with an arc-shaped connecting block (25).

3. A locking structure according to claim 1, characterized in that: A clamping block (43) is fixedly arranged on one side of the part housing (4) cavity close to the second lock plate (22); a first lock groove (44) and a second lock groove (45) are respectively provided on one side of the part housing (4) adjacent to the second lock plate (22); and transverse grooves (46) are fixedly arranged on both sides of the second lock groove (45) in the part housing (4) cavity.

4. A locking structure according to claim 1, characterized in that: The lock core structure (5) further comprises a plurality of first top grooves (53) formed on the top of the inner wall of the outer ring (51), wherein a first lock column (54) is movably arranged in each of the plurality of first top grooves (53), a plurality of second top grooves (55) are formed on the inner wall of the inner ring (52), wherein a second lock column (56) is movably arranged in each of the plurality of second top grooves (55), and a locking groove (58) is formed on one side of the outer surface of the inner ring (52).

5. A locking structure according to claim 1, characterized in that: The anti-locking mechanism (6) comprises a sliding block (62) fixedly arranged at the bottom of the anti-locking block (61), the sliding block (62) being movably abutted against the sliding rod (42), a plurality of protrusions (66) being fixedly arranged on the inner wall of the anti-locking block (61) and the upper end surface of the force-bearing plate (65), a rotating block (67) being rotatably arranged on one side of the anti-locking block (61), and a limiting block (68) being fixedly arranged at the end of the rotating block (67).

6. A locking structure according to claim 3, characterized in that: A lock head (7) is movably provided on one side opposite to the two transverse grooves (46), and the two sides of the lock head (7) located in the part housing (4) are respectively fixedly connected to two arc-shaped connecting blocks (25) one by one.

7. A locking structure according to claim 2, characterized in that: A reverse locking handle (8) is movably provided on the surface of the second locking plate (22); the reverse locking handle (8) passes through the second locking plate (22), is located in the cavity of the part housing (4), and is fixed with a second push block (9).

8. A door lock, characterized in that: A lock structure comprising any one of claims 1 to 7, and further comprising a door body (1), wherein two sides of the door body (1) are respectively fixedly connected to a first lock plate (2) and a second lock plate (22), and a mounting groove (3) is provided on the door body (1) between the first lock plate (2) and the second lock plate (22), and a lock hole (31) is provided on a side of the mounting groove (3) close to the second lock plate (22), and side grooves (32) are provided at both upper and lower ends of the mounting groove (3), and the part housing (4) can be detachably mounted in the mounting groove (3).

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