Double-quick lock

Abstract

The utility model discloses a double-fast lock which comprises a bottom cover and an upper cover, and the bottom cover is provided with a spring bolt, a driving piece and a linkage piece. The linkage piece is rotationally connected with a shaft pin rod arranged on the bottom cover through a shaft pin hole; one end of the linkage piece is connected with the spring bolt, and the other end of the linkage piece is linked with the driving piece; the linkage piece comprises a first shifting piece located on the inner side face of the spring bolt and a second shifting piece located on the outer side face of the spring bolt. The first shifting piece rotates in a first notch formed in the spring bolt, and the second shifting piece rotates in a second notch formed in the spring bolt. The two shifting pieces of the linkage piece can rotate in the corresponding notches in the spring bolt and drive the spring bolt to slide, so that the structure between the spring bolt and the linkage piece is more compact, the size of the lock is reduced, in addition, the linkage piece is composed of the two shifting pieces, and the size of the lock is reduced. Therefore, the two shifting pieces reliably promote the lock tongue to slide, and meanwhile the linkage piece and the lock tongue are convenient to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a double-speed lock. Background Technique

[0002] A double-speed lock is a lock that can be locked by lifting the handle through an internal structure without using a key and is widely used. However, the internal structure of the current double-speed locks on the market is relatively complex and costly. In order to solve the above problems, the company proposed a patented product with the publication number of CN222045369U. However, except for the bottom contacting the lock tongue, the rest of the pendulum rotates inside the housing, resulting in a large space occupation of the pendulum and an incompact internal space of the entire lock. Content of the Utility Model

[0003] The purpose of the utility model is to provide a double-speed lock to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A double-speed lock includes a bottom cover and an upper cover, and a lock tongue, a driving member, and a linkage member are provided on the bottom cover; the linkage member is rotatably connected to a pin rod provided on the bottom cover through a pin hole provided; wherein, one end of the linkage member is connected to the lock tongue, and the other end of the linkage member is linked to the driving member; the linkage member includes a first dial plate on the inner side surface of the lock tongue and a second dial plate on the outer side surface of the lock tongue; the first dial plate rotates in a first notch provided on the lock tongue, and the second dial plate rotates in a second notch provided on the lock tongue; the driving member is provided with a first dial block and a second dial block, and by rotating the driving member counterclockwise, the first dial block drives the linkage member to rotate clockwise to cause the lock tongue to slide out of the bottom cover; by rotating the driving member clockwise, the second dial block pushes the linkage member to rotate counterclockwise to drive the lock tongue to slide into the bottom cover.

[0005] As a preferred technical solution of the utility model: A torsion spring is also sleeved on the driving member, and the torsion spring causes the driving member to reset after the external force disappears.

[0006] As a preferred technical solution of the utility model: The first dial plate is connected to a positioning hole provided on the second dial plate through a positioning pin provided, and a baffle is further provided on the first dial plate, and the baffle is adaptively connected to a groove on the second dial plate.

[0007] As a preferred technical solution of the utility model: A slider is further provided on the surface of the lock tongue facing the bottom cover, and the slider is slidably matched with a chute provided on the bottom cover.

[0008] As a preferred technical solution of the utility model: the bottom cover and the upper cover are both provided with a first limiting hole and a second limiting hole; the lock tongue is also provided with a mounting seat, and is connected to the first limiting hole or the second limiting hole through a top ball in the mounting seat to position the lock tongue.

[0009] As a preferred technical solution of the utility model: a spring is further provided in the mounting seat, and the spring is used to force the top ball to press against the first limiting hole or the second limiting hole.

[0010] As a preferred technical solution of the utility model: a noise reduction portion is further provided at one end of the lock tongue, and the noise generated when the lock tongue is working is reduced by the noise reduction portion.

[0011] As a preferred technical solution of the utility model: the noise reduction part is movably connected to the lock tongue through a connecting plate, and the connecting plate is fixed to the lock tongue through a clamping sleeve, and one end of the noise reduction part passes through the clamping sleeve and is exposed outside the clamping sleeve.

[0012] By adopting the above technical solution, the beneficial effect of the utility model is: since the first paddle rotates in the first slot and the second paddle rotates in the second slot, the linkage member promotes the normal sliding of the lock tongue while the two paddles work in the corresponding slots set on the lock tongue, thereby making the structure between the lock tongue and the linkage member more compact, thereby reducing the overall volume of the lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an exploded schematic diagram of the main structure of the utility model;

[0014] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0015] Figure 3 This is a schematic diagram of the exploded structure of the lock tongue of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of one side of the lock tongue of the utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the other side of the lock tongue of the utility model;

[0018] Figure 6 It is a schematic diagram of the exploded structure of the linkage member of the utility model;

[0019] Figure 7 This is a schematic diagram of the main structure of the driving member of the utility model.

[0020] In the figure: 1. bottom cover; 2. axle pin rod; 3. linkage member; 30. first paddle; 31. second paddle; 32. groove; 33. baffle; 34. positioning pin; 35. positioning hole; 36. axle pin hole; 4. driving member; 40. first paddle block; 41. second paddle block; 5. locking tongue; 50. mounting seat; 51. first notch; 52. second notch; 53. slider; 54. top ball; 55. spring; 56. connecting plate; 57. noise reduction part; 58. ferrule; 6. torsion spring; 7. upper cover; 8. first limiting hole; 9. second limiting hole; 10. slide groove. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figures 1-7 The utility model provides an embodiment: a double quick lock, comprising a bottom cover 1 and an upper cover 7, wherein a lock tongue 5, a driving member 4 and a linkage member 3 are provided on the bottom cover 1; the linkage member 3 is rotatably connected with an axle pin rod 2 provided on the bottom cover 1 through an axle pin hole 36 provided; wherein one end of the linkage member 3 is connected with the lock tongue 5, and the other end of the linkage member 3 is linked with the driving member 4; the linkage member 3 comprises a first paddle 30 located on the inner side of the lock tongue 5 and a second paddle 31 located on the outer side of the lock tongue 5; the first paddle 30 is arranged on the lock tongue 5, and the second paddle 31 is arranged ... The tongue 5 rotates in a first notch 51 provided on the tongue 5, and the second paddle 31 rotates in a second notch 52 provided on the lock tongue 5. The driving member 4 is provided with a first paddle block 40 and a second paddle block 41, and the counterclockwise rotation of the driving member 4 causes the first paddle block 40 to drive the linkage member 3 to rotate clockwise, so as to cause the lock tongue 5 to slide toward the outside of the bottom cover 1; the clockwise rotation of the driving member 4 causes the second paddle block 41 to push the linkage member 3 to rotate counterclockwise, so as to drive the lock tongue 5 to slide toward the inside of the bottom cover 1.

[0023] Based on this, the two paddles of the linkage member 3 can rotate within the corresponding notches on the locking tongue 5 and drive the locking tongue 5 to slide, thus making the structure between the locking tongue 5 and the linkage member 3 more compact, which is beneficial to reducing the volume of the specific lock. In addition, since the linkage member 3 is composed of two paddles, while the two paddles reliably prompt the locking tongue 5 to slide, it is also convenient for the assembly of the linkage member 3 and the locking tongue 5.

[0024] In order to facilitate the rapid reset of the driving member 4 after the external force disappears, a torsion spring 6 is also sleeved on the driving member 4, and the torsion spring 6 is used to prompt the driving member 4 to reset after the external force disappears.

[0025] Furthermore, since the first paddle 30 is connected to the positioning hole 35 provided on the second paddle 31 through the provided positioning pin 34, and a baffle 33 is also provided on the first paddle 30, and the baffle 33 is adaptively connected to the groove 32 on the second paddle 31. Therefore, when the first paddle 30 works, it can stably and reliably prompt the second paddle 31 to be linked therewith, and further make the linkage member 3 stably and reliably prompt the locking tongue 5 to move.

[0026] On the basis of the above solution, since a slider 53 is also provided on the side of the locking tongue 5 facing the bottom cover 1, and the slider 53 is in sliding fit with the chute 10 provided on the bottom cover 1, therefore, by using the cooperation of the chute 10 and the slider 53, the directional sliding of the locking tongue 5 can be ensured, and further the locking tongue 5 can accurately complete the unlocking action and the locking action.

[0027] Furthermore, since the first limiting hole 8 and the second limiting hole 9 are provided on both the bottom cover 1 and the upper cover 7; an installation seat 50 is also provided on the locking tongue 5, and the top bead 54 in the installation seat 50 is connected to the first limiting hole 8 or the second limiting hole 9 to position the locking tongue 5. Therefore, after the top bead 54 is connected to the first limiting hole 8, the outward sliding of the locking tongue 5 can be blocked, and further the locking tongue 5 can stably and reliably be located within the bottom cover 1 after the lock is unlocked. At the same time, when the top bead 54 is connected to the second limiting hole 9, the extended locking tongue 5 can be positioned to avoid the situation of automatic unlocking caused by the sliding of the locking tongue 5 towards the inside of the bottom cover 1.

[0028] Even further, since a spring 55 is also provided in the installation seat 50, and the spring 55 is used to prompt the top bead 54 to press tightly in the first limiting hole 8 or press tightly in the second limiting hole 9, therefore, the setting of the spring 55 can further ensure the connection between the top bead 54 and the corresponding limiting hole, and when an external force prompts the locking tongue 5 to slide, the top bead 54 can prompt the spring 55 to compress, so as to facilitate the smooth movement of the top bead 54 from one limiting hole to another limiting hole.

[0029] In addition, in order to reduce the noise generated when the locking tongue 5 works, a noise reduction part 57 is provided at one end of the locking tongue 5, and the noise generated when the locking tongue 5 works is reduced through the noise reduction part 57. Among them, there are two noise reduction parts 57, which can reduce the contact area with the lock hole in the door frame so as to reduce the noise during collision. In addition, a plastic part or a rubber gasket can also be provided in the lock hole in the door frame to cooperate with the noise reduction part 57 to further reduce the noise and achieve a silent effect;

[0030] Furthermore, the noise reduction part 57 is movably connected to the locking tongue 5 through a connecting plate 56 provided, and a retaining sleeve 58 is used to fix the connecting plate 56 on the locking tongue 5, and one end of the noise reduction part 57 penetrates through the retaining sleeve 58 and is exposed outside the retaining sleeve 58. Based on this, since the noise reduction part 57 is movably installed on the locking tongue 5 through the retaining sleeve 58, it is simple and convenient to replace when the noise reduction part 57 is worn. In addition, the noise reduction part 57 and the connecting plate 56 are of an integral structure, and the materials of the noise reduction part 57, the connecting plate 56 and the retaining sleeve 58 are preferably plastic parts or rubber parts.

[0031] The above embodiments of the present invention have been described in detail in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions and variations to these embodiments still fall within the protection scope of the present invention.

Claims

1. A double quick lock, characterized in that: It comprises a bottom cover (1) and an upper cover (7), and a locking tongue (5), a driving member (4) and a linkage member (3) are provided on the bottom cover (1); The linkage member (3) is rotatably connected to an axis pin rod (2) provided on the bottom cover (1) via an axis pin hole (36); wherein one end of the linkage member (3) is connected to the lock tongue (5), and the other end of the linkage member (3) is linked to the driving member (4); The linkage member (3) comprises a first paddle (30) located on the inner side of the lock tongue (5) and a second paddle (31) located on the outer side of the lock tongue (5); the first paddle (30) rotates in a first notch (51) provided on the lock tongue (5), and the second paddle (31) rotates in a second notch (52) provided on the lock tongue (5); The driving member (4) is provided with a first shifting block (40) and a second shifting block (41), and the driving member (4) rotates counterclockwise to cause the first shifting block (40) to drive the linkage member (3) to rotate clockwise, thereby causing the locking tongue (5) to slide toward the outside of the bottom cover (1); The driving member (4) rotates clockwise to cause the second shifting block (41) to push the linkage member (3) to rotate counterclockwise, thereby driving the locking tongue (5) to slide toward the inside of the bottom cover (1).

2. The double quick lock according to claim 1, characterized in that: The driving member (4) is also provided with a torsion spring (6), and the torsion spring (6) causes the driving member (4) to reset after the external force disappears.

3. The double-fast lock according to claim 2, wherein: The first paddle (30) is connected to a positioning hole (35) provided on the second paddle (31) via a positioning pin (34), and a baffle (33) is also provided on the first paddle (30), and the baffle (33) is adaptively connected to a groove (32) on the second paddle (31).

4. A double quick lock according to claim 1 or 2 or 3, characterized in that: A sliding block (53) is also provided on a side of the locking tongue (5) facing the bottom cover (1), and the sliding block (53) is slidably matched with a sliding groove (10) provided on the bottom cover (1).

5. A double quick lock according to claim 4, characterized in that: The bottom cover (1) and the upper cover (7) are both provided with a first limiting hole (8) and a second limiting hole (9); the lock tongue (5) is also provided with a mounting seat (50), and is connected to the first limiting hole (8) or the second limiting hole (9) via a top bead (54) in the mounting seat (50) so as to position the lock tongue (5).

6. The double quick lock according to claim 5, characterized in that: A spring (55) is also provided in the mounting seat (50), and the spring (55) causes the top bead (54) to press tightly against the first limiting hole (8) or against the second limiting hole (9).

7. A double quick lock according to claim 6, characterized in that: One end of the lock tongue (5) is also provided with a noise reduction portion (57), and the noise generated when the lock tongue (5) is working is reduced by the noise reduction portion (57).

8. A double-fast lock according to claim 7, characterized in that: The noise reduction portion (57) is movably connected to the locking tongue (5) via a connecting plate (56), and the connecting plate (56) is fixed to the locking tongue (5) via a clamping sleeve (58), and one end of the noise reduction portion (57) passes through the clamping sleeve (58) and is exposed outside the clamping sleeve (58).

Images