Door lock capable of being locked through reverse lifting

Abstract

The utility model discloses a door lock capable of being reversely lifted to be locked. The door lock comprises a lock shell and a lock cylinder installed in the lock shell. The lock cylinder comprises a linkage piece, a first shifting piece arranged on one side of the linkage piece and a second shifting piece arranged on the other side of the linkage piece. The upper portion of the linkage piece is rotationally connected with an arranged locking block, and the lower portion of the linkage piece is connected with an arranged linkage pin. The first shifting piece is driven to rotate anticlockwise through the inside door handle, so that the first shifting piece drives the lock block to rotate clockwise, the lock block is driven to be separated from the first shifting piece, the power of the outside door handle for driving the linkage piece to rotate is cut off, and locking of the lock cylinder is achieved. The first shifting piece is rotated clockwise to drive the lock block to anticlockwise, power of the inside door handle or the outside door handle is transmitted to the linkage piece, and the linkage piece drives the lock tongue in the lock shell to slide towards the inside of the lock shell to complete unlocking of the door lock. On the basis, the door lock can achieve rapid locking and unlocking, and meanwhile the structure of the lock cylinder is simpler.

Description

Technical Field

[0001] The utility model relates to the technical field of door locks, in particular to a door lock that can be lifted up and locked. Background Art

[0002] Through searching, the prior art with patent number CN211038125U was found, and its general scheme is as follows: a lock buckle and a lock body, the lock body includes an outer shell cover, a lock core and a lock tongue rotatably arranged at the front end of the outer shell cover, wherein the lock body also includes a center wheel rotatably arranged in the outer shell cover and a toggle assembly, an A reversing gear is fixedly arranged on the upper surface of the center wheel, a B reversing gear is slidably arranged on the lower surface of the center wheel, the toggle assembly includes an A toggle member and a B toggle member, the A toggle member drives the center wheel to rotate to unlock or lock by meshing with the A reversing gear; when the B reversing gear slides to mesh with the B toggle member, it drives the center wheel to rotate to unlock or lock, and when the B reversing gear slides to be separated from the B toggle member, it cannot drive the center wheel to rotate to unlock or lock.

[0003] Although the above scheme can complete the locking action of the lock by rotating the door handle counterclockwise, it can be clearly seen from its scheme that the internal structure of the above lock is relatively complicated, and the use of gears to achieve power transmission leads to high processing precision, which in turn leads to not only high cost of use but also a bloated internal structure of the lock. Utility Model Content

[0004] The purpose of the utility model is to provide a door lock that can be locked by reverse lifting, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a door lock that can be locked by reverse lifting, comprising a lock shell and a lock core installed inside the lock shell; the lock core comprises a linkage piece, a lock block, a first paddle piece arranged on one side of the linkage piece and a second paddle piece arranged on the other side of the linkage piece; wherein the first paddle piece and the second paddle piece both rotate on both sides of the linkage piece; a support shaft is provided inside the lock shell, and one end of the support shaft passes through the lock core so that one end of the linkage piece rotates on the support shaft, and one end of the lock block rotates on the linkage piece; the first paddle piece is rotated counterclockwise to make the lock block rotate clockwise to cut off the connection between the second paddle piece and the lock block; the first paddle piece is rotated clockwise to make the first paddle piece and the second paddle piece contact the lock block to transmit the power from the door handle to the linkage piece.

[0006] As a preferred technical solution of the present utility model: a limiting column is further provided inside the lock housing, and the rotation range of the lock block is limited by the limiting column.

[0007] As a preferred technical solution of the utility model: one end of the locking block is also provided with a connecting hole for installing a second locking member, and the second locking member is pressed against the shaft pin seat provided on the linkage plate to complete the positioning of the locking block after rotation.

[0008] As a preferred technical solution of the utility model: a first braking groove is also provided on the shaft pin seat.

[0009] As a preferred technical solution of the utility model: the second locking member includes a bolt threadedly matched with the connecting hole, and a top ball contacting the first braking groove after passing through the connecting hole, and a spring is also provided between the top ball and the bolt.

[0010] As a preferred technical solution of the utility model: the lower part of the linkage piece is slidably matched with a linkage pin; the first paddle or the second paddle is connected to the linkage pin so that the first paddle or the second paddle prompts the linkage piece to rotate in the lock housing.

[0011] As a preferred technical solution of the utility model: the first paddle and the second paddle have the same structure; wherein, the first paddle is connected to the locking block via a first protrusion, and the first paddle is connected to the linkage pin via a second protrusion.

[0012] As a preferred technical solution of the utility model: a mounting seat is also provided on the linkage piece, and the linkage pin slides in a through hole provided on the mounting seat.

[0013] As a preferred technical solution of the utility model: a first locking member is further provided in the mounting seat, and the first locking member is connected to a second braking groove provided on the linkage pin to lock the linkage pin after sliding.

[0014] By adopting the above technical solution, the beneficial effect of the utility model is as follows: when the door handle drives the first paddle to rotate counterclockwise, the lock block rotates clockwise, so the connection between the second paddle and the lock block can be cut off; at this time, when the door handle rotates, the second paddle rotates idly, completing the locking action of the lock; conversely, through the clockwise rotation of the first paddle, the first paddle and the second paddle are in contact with the lock block, so that the power from the door handle is transmitted to the linkage piece, completing the unlocking action of the lock. Based on this, the device not only realizes the function of reverse lifting and locking, but also makes the structure of the lock core simpler, thereby making the internal structure of the lock shell more streamlined. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0017] Figure 3 This is a schematic diagram of the main structure of the lock core of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of one side of the lock core after being disassembled;

[0019] Figure 5 This is a schematic diagram of the structure of the other side of the lock core after being disassembled;

[0020] Figure 6 This is a schematic diagram of the main structure of the linkage piece of the utility model;

[0021] Figure 7 It is a schematic diagram of the main structure of the first paddle of the utility model.

[0022] In the figure: 1. lock housing; 2. supporting shaft; 3. lock core; 30. linkage plate; 31. mounting seat; 32. linkage pin; 33. first paddle; 34. second paddle; 35. first locking member; 36. shaft pin seat; 37. bolt; 38. spring; 39. top ball; 310. through hole; 311. first braking groove; 312. locking block; 313. connecting hole; 314. second locking member; 315. first protrusion; 316. second protrusion; 317. second braking groove; 4. limiting column. DETAILED DESCRIPTION

[0023] Embodiments of the present utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present utility model, and should not be construed as limitations on the present utility model. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "upper surface", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present utility model.

[0024] See also Figure 1-7The utility model provides an embodiment: a door lock that can be locked by reverse lifting, comprising a lock housing 1, a lock core 3 installed inside the lock housing 1; the lock core 3 comprises a linkage piece 30, a lock block 312, a first paddle 33 arranged on one side of the linkage piece 30, and a second paddle 34 arranged on the other side of the linkage piece 30; wherein the first paddle 33 and the second paddle 34 both rotate on both sides of the linkage piece 30; a support shaft 2 is provided inside the lock housing 1, and one end of the support shaft 2 passes through the lock core 3 Afterwards, one end of the linkage piece 30 is rotated on the support shaft 2, and one end of the locking block 312 is rotated on the linkage piece 30; the first paddle 33 is rotated counterclockwise to make the locking block 312 rotate clockwise to cut off the connection between the second paddle 34 and the locking block 312; the first paddle 33 is rotated clockwise to make the first paddle 33 and the second paddle 34 contact with the locking block 312 to transmit the power from the door handle to the linkage piece 30.

[0025] In summary, when the door handle drives the first paddle 33 to rotate counterclockwise, the lock block 312 rotates clockwise, so the connection between the second paddle 34 and the lock block 312 can be cut off; at this time, when the door handle rotates, the second paddle 34 rotates idle, completing the locking action of the lock; on the contrary, through the clockwise rotation of the first paddle 33, the first paddle 33 and the second paddle 34 are in contact with the lock block 312, so that the power from the door handle is transmitted to the linkage piece 30, and then the linkage piece 30 drives the lock tongue in the lock shell 1 to slide into the lock shell 1, completing the unlocking action of the lock. Based on this, the device not only realizes the function of reverse lifting and locking, but also makes the structure of the lock core 3 simpler, thereby making the internal structure of the lock shell 1 more streamlined.

[0026] On the basis of the above scheme, in order to improve the reliability of the lock, a limit column 4 is also provided inside the lock shell 1, and the rotation range of the lock block 312 is limited by the limit column 4. Therefore, when the lock block 312 rotates clockwise on the support shaft 2, when one end of the lock block 312 contacts the limit column 4, the limit column 4 can be used to prevent the lock block 312 from rotating clockwise; at the same time, when the lock block 312 rotates counterclockwise, the other end of the lock block 312 contacts the limit column 4, which can limit the rotation of the lock block 312, thereby effectively avoiding the problem of failure of the lock core 3 due to excessive rotation of the lock block 312.

[0027] Furthermore, since one end of the lock block 312 is also provided with a connection hole 313 for installing the second locking member 314, and the second locking member 314 is pressed against the shaft pin seat 36 provided on the linkage piece 30 to complete the positioning of the lock block 312 after rotation, when the lock block 312 rotates counterclockwise until the second paddle 34 is idle, the lock block 312 is locked by the second locking member 314 to prevent the lock block 312 and the second paddle 34 from losing the locking function due to incomplete separation or re-contact, thereby preventing the lock core 3 from losing the locking function. Therefore, the provision of the second locking member 314 can further ensure the reliability of the lock core 3 when it is working.

[0028] Furthermore, since the first braking groove 311 is also provided on the shaft pin seat 36 , when the second locking member 314 contacts the first braking groove 311 , the locking block 312 can be further prevented from automatically falling.

[0029] Specifically, the second locking member 314 includes a bolt 37 threadedly matched with the connecting hole 313, and a top ball 39 that contacts the first braking groove 311 after passing through the connecting hole 313, and a spring 38 is provided between the top ball 39 and the bolt 37. When the bolt 37 is connected to the connecting hole 313, the other end of the spring 38 is forced to abut against the top ball 39, so that the top ball 39 can be reliably pressed against the first braking groove 311;

[0030] In addition, there are two first braking grooves 311. When the top bead 39 is connected to the upper first braking groove 311, it can ensure that the locking block 312 is locked in the position after rotating clockwise, thereby ensuring that the locking block 312 is completely separated from the second paddle 34; when the top bead 39 is connected to the lower first braking groove 311, it can ensure that the locking block 312 is locked in the position after rotating counterclockwise, thereby enabling the first paddle 33 and the second paddle 34 to be able to reliably contact the locking block 312, thereby enhancing the linkage effect between the two paddles and the linkage plate 30.

[0031] To sum up, by utilizing the cooperation between the first braking groove 311 and the top bead 39, and with the support of the spring 38 and the bolt 37, even if the door body vibrates, the lock block 312 will not easily swing, thereby improving the safety of the lock. Even if the door is violently shaken or kicked, the lock block 312 will not rotate.

[0032] On the basis of the above scheme, in order to expand the versatility of the lock, that is, the installation direction of the lock can adapt to the opening direction of the door body; the bottom of the linkage piece 30 is slidably matched with the linkage pin 32; the first paddle 33 or the second paddle 34 is connected to the linkage pin 32, so that the first paddle 33 or the second paddle 34 prompts the linkage piece 30 to rotate in the lock shell 1.

[0033] When the linkage pin 32 slides outward and contacts the first paddle 33, the lock block 312 and the second paddle 34 can be separated by rotating the door handle counterclockwise, so that the second paddle 34 can rotate idly. At this time, the lock will not be unlocked by rotating the door handle outside. At this time, the lock can adapt to the opening direction of the door body right inside or right outside.

[0034] When the linkage pin 32 slides toward the second paddle 34 until it contacts the second paddle 34, the second paddle 34 rotates counterclockwise to separate the lock block 312 from the first paddle 33. Therefore, when the first paddle 33 is connected to the door handle, the door handle still cannot unlock the lock. At this time, the lock can adapt to the opening direction of the door body, either left inward or left outward.

[0035] Furthermore, since the first paddle 33 and the second paddle 34 have the same structure, wherein the first paddle 33 is connected to the locking block 312 via the first protrusion 315, and the first paddle 33 is connected to the linkage pin 32 via the second protrusion 316. Therefore, the first paddle 33 or the second paddle 34 can reliably contact the locking block 312 and the linkage pin 32, so that the first paddle 33 or the second paddle 34 can stably and reliably promote the linkage of the linkage piece 30. The linkage efficiency between the locking block 312, the first paddle 33, the second paddle 34 and the linkage piece 30 is improved, as well as the reliability during linkage.

[0036] Furthermore, since a mounting seat 31 is also provided on the linkage piece 30, and the linkage pin 32 slides in the through hole 310 provided on the mounting seat 31, the linkage pin 32 can slide in the through hole 310 to switch to the first paddle 33 and rotate counterclockwise to realize the reverse lift and lock function, or switch to the second paddle 34 and rotate counterclockwise to realize the reverse lift and lock function, thereby making it possible for the lock to be easily and conveniently used on a left-inward-opening or left-outward-opening door body, as well as a right-inward-opening or right-outward-opening door body, by utilizing the sliding of the linkage pin 32.

[0037] In order to ensure that the linkage pin 32 can still be reliably locked in the position after sliding, a first locking member 35 is further provided in the mounting seat 31, and the first locking member 35 is connected to the second braking groove 317 provided on the linkage pin 32 to lock the linkage pin 32 after sliding; wherein, the first locking member 35 has the same structure as the second locking member 314, so that the first locking member 35 can lock the linkage pin 32 in the position after sliding in the same way.

[0038] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A door lock that can be locked by reverse lifting, characterized in that: It comprises a lock housing (1) and a lock core (3) installed inside the lock housing (1); The lock core (3) comprises a linkage piece (30), a lock block (312), a first paddle (33) arranged on one side of the linkage piece (30), and a second paddle (34) arranged on the other side of the linkage piece (30); wherein the first paddle (33) and the second paddle (34) both rotate on both sides of the linkage piece (30); A support shaft (2) is provided inside the lock housing (1), and after one end of the support shaft (2) passes through the lock core (3), one end of the linkage piece (30) is rotated on the support shaft (2), and one end of the lock block (312) is rotated on the linkage piece (30); The first paddle (33) is rotated counterclockwise to make the provided lock block (312) rotate clockwise to cut off the connection between the second paddle (34) and the lock block (312); the first paddle (33) is rotated clockwise to make the first paddle (33) and the second paddle (34) contact the lock block (312) to transmit power from the door handle to the linkage plate (30).

2. A door lock capable of reverse lifting and locking according to claim 1, characterized in that: A limiting column (4) is also provided inside the lock housing (1), and the limiting column (4) limits the rotation range of the locking block (312).

3. A door lock capable of reverse lifting and locking according to claim 2, characterized in that: One end of the locking block (312) is also provided with a connecting hole (313) for installing a second locking member (314), and the second locking member (314) is pressed against a shaft pin seat (36) provided on the linkage plate (30) to complete the positioning of the locking block (312) after rotation.

4. A door lock capable of reverse lifting and locking according to claim 3, characterized in that: The shaft pin seat (36) is also provided with a first braking groove (311).

5. A door lock capable of reverse lifting and locking according to claim 4, characterized in that: The second locking member (314) comprises a bolt (37) threadedly matched with the connecting hole (313), and a top ball (39) which contacts the first braking groove (311) after passing through the connecting hole (313), and a spring (38) is further provided between the top ball (39) and the bolt (37).

6. A door lock capable of reverse lifting and locking according to any one of claims 1 to 5, characterized in that: The lower part of the linkage piece (30) is slidably matched with a linkage pin (32); the first paddle (33) or the second paddle (34) is connected to the linkage pin (32), so that the first paddle (33) or the second paddle (34) causes the linkage piece (30) to rotate in the lock housing (1).

7. A door lock capable of reverse lifting and locking according to claim 6, characterized in that: The first paddle (33) and the second paddle (34) have the same structure; wherein the first paddle (33) is connected to the locking block (312) via a first protruding portion (315), and the first paddle (33) is connected to the linkage pin (32) via a second protruding portion (316).

8. The door lock capable of reverse lifting and locking according to claim 7, characterized in that: The linkage piece (30) is also provided with a mounting seat (31), and the linkage pin (32) slides in a through hole (310) provided on the mounting seat (31).

9. The door lock capable of reverse lifting and locking according to claim 8, characterized in that: A first locking member (35) is also provided in the mounting seat (31), and is connected to a second braking groove (317) provided on the linkage pin (32) through the first locking member (35) to lock the linkage pin (32) after sliding.

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