Transmission structure of auxiliary lock heaven and earth rod

Abstract

The utility model provides a transmission structure of an auxiliary lock heaven and earth rod, and belongs to the technical field of locks. The problems that according to an existing intelligent lock, two driving mechanisms need to be arranged in a lock body to drive a heaven and earth rod and a spring bolt to move correspondingly, the structure is complex, and the production cost is high are solved. The transmission structure comprises main racks fixedly connected with the heaven and earth rods and a main gear meshed with the two main racks, and when a main spring bolt translates, the main gear is driven to rotate by driving a first guide mechanism, so that the two main racks and the two heaven and earth rods respectively translate longitudinally to be locked or unlocked; the transmission structure further comprises an auxiliary rack fixedly connected with the heaven and earth rod and an auxiliary gear meshed with the auxiliary rack, the auxiliary gear is synchronously driven to rotate when the heaven and earth rod translates, and when the auxiliary gear rotates, the auxiliary spring bolt is driven by the second driving guide mechanism to translate transversely to conduct locking or unlocking. The door lock has the advantages that only one driving piece is needed to drive the main lock tongue to transversely move, the structure is simple, and the production cost is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of locks and relates to a transmission structure of a secondary lock top and bottom rod. Background Art

[0002] A smart lock is a lock that is different from a traditional mechanical lock and is more intelligent in terms of user identification, security, and manageability. It is a composite lock that is safe, convenient, and technologically advanced.

[0003] In order to enhance the anti-theft performance of the existing smart lock, a top and bottom rod is installed inside the anti-theft door, and a top and bottom rod is installed on the door lock to lock the door frame in cooperation with the top and bottom rod. For the convenience of use, the top and bottom rod is usually linked with the lock tongue, that is, the lock tongue and the top and bottom rod are locked and released at the same time in one unlocking action.

[0004] In order to ensure that the top and bottom rods and the lock tongue pop out at the same time, the existing smart lock needs to have two driving mechanisms in the lock body, and the two driving mechanisms drive the top and bottom rods and the lock tongue to move respectively. This type of structure is relatively complex and has a high production cost. Summary of the invention

[0005] The utility model aims to solve the above problems existing in the existing locks and proposes a transmission structure in which a top and bottom rod is synchronously linked with a lock tongue and a driving mechanism can drive the top and bottom rod and the lock tongue to move synchronously.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A transmission structure of a secondary lock and a top and bottom rod is arranged in a lock body, a main lock tongue, two secondary lock tongues and two top and bottom rods are movably arranged in the lock body, and a driving member is arranged in the lock body for driving the main lock tongue to translate horizontally to lock or unlock;

[0008] The transmission structure includes a transmission gear assembly disposed between the two sky and earth rods, the transmission gear assembly includes a main rack fixedly connected to the sky and earth rods, and a main gear meshing with the two main racks. A driving guide mechanism is also provided between the main lock tongue and the main gear. When the main lock tongue translates, the main gear is driven to rotate by the driving guide mechanism, so that the two main racks and the two sky and earth rods translate longitudinally to lock or unlock respectively.

[0009] The transmission structure also includes a second transmission gear assembly arranged between the auxiliary lock tongue and the top and bottom rods. The second transmission gear assembly includes a secondary rack fixedly connected to the top and bottom rods and a secondary gear meshing with the secondary rack. When the top and bottom rods translate, the secondary gear is synchronously driven to rotate. A second driving guide mechanism is also provided between the auxiliary lock tongue and the secondary gear. When the secondary gear rotates, the auxiliary lock tongue is driven to translate horizontally through the second driving guide mechanism to lock or unlock.

[0010] In the above-mentioned transmission structure of the auxiliary lock top and bottom rod, a guide mechanism is also provided between the main lock tongue and the lock body, which is used to limit the main lock tongue to only be able to translate horizontally; the guide mechanism includes a guide groove provided on the main lock tongue and a guide column fixed on the lock body, the guide column is inserted into the guide groove, and the guide groove extends horizontally.

[0011] In the above-mentioned transmission structure of the auxiliary lock top and bottom rod, a second guide mechanism is also provided between the auxiliary lock tongue and the lock body, which is used to limit the auxiliary lock tongue to only be able to translate horizontally; the second guide mechanism includes a second guide groove opened on the auxiliary lock tongue and a second guide column fixed on the lock body, the second guide column is inserted into the second guide groove, and the second guide groove extends horizontally.

[0012] In the above-mentioned transmission structure of the auxiliary lock top and bottom rod, a guide mechanism three is also provided between the top and bottom rod and the lock body, which is used to limit the top and bottom rod to only be able to translate longitudinally; the guide mechanism three includes a guide groove three opened on the top and bottom rod, and a guide column three fixed on the lock body, the guide column three is inserted in the guide groove three, and the guide groove three extends longitudinally.

[0013] In the above-mentioned transmission structure of the auxiliary lock top and bottom rod, the driving and guiding mechanism includes a main transmission shaft fixed on the main gear and a main limiting groove opened on the main lock tongue. The main limiting groove extends along the moving direction of the top and bottom rod, and the main transmission shaft is inserted in the main limiting groove. When the main gear rotates, the main transmission shaft pushes the main lock tongue to translate along the main limiting groove.

[0014] In the above-mentioned transmission structure of the auxiliary lock top and bottom rod, the second driving guide mechanism includes an auxiliary transmission shaft fixed on the auxiliary gear and an auxiliary limiting groove opened on the auxiliary lock tongue, and the auxiliary transmission shaft is inserted in the auxiliary limiting groove. When the auxiliary gear rotates, the auxiliary transmission shaft pushes the auxiliary lock tongue to translate along the auxiliary limiting groove.

[0015] In the above-mentioned transmission structure of the auxiliary lock heaven and earth rod, a main shaft sleeve is also sleeved on the main transmission shaft, and the outer wheel surface of the main shaft sleeve rotates and abuts against the inner side surface of the main limit groove; a secondary shaft sleeve is also sleeved on the auxiliary transmission shaft, and the outer wheel surface of the secondary shaft sleeve rotates and abuts against the inner side surface of the secondary limit groove.

[0016] In the above-mentioned transmission structure of the auxiliary lock top and bottom rod, an extension piece 1 is fixedly provided on the main gear, and the main transmission shaft is fixedly provided on the extension piece 1; an extension piece 2 is fixedly provided on the auxiliary gear, and the auxiliary transmission shaft is fixedly provided on the extension piece 2.

[0017] In the above-mentioned transmission structure of the auxiliary lock heaven and earth rod, the main gear is located between the two main racks, and when the main gear rotates, it can drive the two main racks to translate in opposite directions respectively.

[0018] In the above-mentioned transmission structure of the auxiliary lock heaven and earth rod, the main rack, the auxiliary rack and the heaven and earth rod are integrally formed.

[0019] Compared with the prior art, the utility model only needs one driving component to drive the main lock tongue to translate laterally. When the main lock tongue translates, it can drive the top and bottom rods to translate longitudinally through the driving guide mechanism 1. When the top and bottom rods translate, it can drive the auxiliary lock tongue to translate laterally through the driving guide mechanism 2. There are no redundant driving components for the movement of the top and bottom rods and the auxiliary lock tongue, the structure is simple, and the production cost is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the utility model when unlocking;

[0021] Figure 2 It is a schematic diagram of the utility model when locked;

[0022] Figure 3 It is a schematic diagram of the main lock tongue of the utility model when it is extended;

[0023] Figure 4 It is a schematic diagram of a transmission gear assembly 1 of the utility model;

[0024] Figure 5 It is a schematic diagram of the auxiliary lock tongue and the top and bottom rod of the utility model when they are retracted;

[0025] Figure 6 It is a schematic diagram of the auxiliary lock tongue and the top and bottom rods of the utility model when they are extended.

[0026] In the figure, 1. lock body; 2. main lock tongue; 3. auxiliary lock tongue; 4. top and bottom rod; 5. main rack; 6. main gear; 7. auxiliary rack; 8. auxiliary gear; 9. guide groove one; 10. guide column one; 11. guide groove two; 12. guide column two; 13. guide groove three; 14. guide column three; 15. main transmission shaft; 16. main limit groove; 17. auxiliary transmission shaft; 18. auxiliary limit groove; 19. extension piece one; 20. extension piece two. DETAILED DESCRIPTION

[0027] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0028] like Figure 1 and Figure 2 As shown, the transmission structure of the auxiliary lock top and bottom rod described in the utility model is arranged in a lock body 1, and a main lock tongue 2, two auxiliary lock tongues 3, and two top and bottom rods 4 are movably provided in the lock body 1. A driving member is provided in the lock body 1 for driving the main lock tongue 2 to move horizontally to lock or unlock.

[0029] like Figure 3 and Figure 4 As shown, the transmission structure includes a transmission gear assembly 1 arranged between the two heaven and earth rods 4, and the transmission gear assembly 1 includes a main rack 5 fixedly connected to the heaven and earth rods 4, and a main gear 6 meshing with the two main racks 5. A driving guide mechanism 1 is also provided between the main lock tongue 2 and the main gear 6. When the main lock tongue 2 translates, the main gear 6 is driven to rotate by the driving guide mechanism 1, so that the two main racks 5 and the two earth rods 4 translate longitudinally to lock or unlock. The main gear 6 is located between the two main racks 5, and when the main gear 6 rotates, it can drive the two main racks 5 to translate in the opposite direction.

[0030] like Figure 5 and Figure 6 As shown, the transmission structure also includes a transmission gear assembly 2 arranged between the auxiliary lock tongue 3 and the top and bottom rod 4. The transmission gear assembly 2 includes a secondary rack 7 fixedly connected to the top and bottom rod 4 and a secondary gear 8 meshing with the secondary rack 7. When the top and bottom rod 4 translates, the secondary gear 8 is synchronously driven to rotate. A driving guide mechanism 2 is also provided between the auxiliary lock tongue 3 and the secondary gear 8. When the secondary gear 8 rotates, the auxiliary lock tongue 3 is driven to translate horizontally through the driving guide mechanism 2 to lock or unlock.

[0031] A guide mechanism 1 is also provided between the main lock tongue 2 and the lock body 1, which is used to limit the main lock tongue 2 to only be able to translate in the lateral direction; the guide mechanism 1 includes a guide groove 19 provided on the main lock tongue 2, a guide column 10 fixed on the lock body 1, the guide column 10 is inserted into the guide groove 19, and the guide groove 19 extends in the lateral direction. A guide mechanism 2 is also provided between the auxiliary lock tongue 3 and the lock body 1, which is used to limit the auxiliary lock tongue 3 to only be able to translate in the lateral direction; the guide mechanism 2 includes a guide groove 211 provided on the auxiliary lock tongue 3, a guide column 212 fixed on the lock body 1, the guide column 212 is inserted into the guide groove 211, and the guide groove 211 extends in the lateral direction. A guide mechanism three is also provided between the top and bottom rod 4 and the lock body 1, which is used to limit the top and bottom rod 4 to only be able to translate longitudinally; the guide mechanism three includes a guide groove three 13 opened on the top and bottom rod 4, and a guide column three 14 fixed on the lock body 1, and the guide column three 14 is inserted in the guide groove three 13, and the guide groove three 13 extends longitudinally.

[0032] The first driving guide mechanism includes a main transmission shaft 15 fixed on the main gear 6, a main limiting groove 16 provided on the main lock tongue 2, the main limiting groove 16 extends along the moving direction of the sky and earth rod 4, the main transmission shaft 15 is inserted in the main limiting groove 16, when the main gear 6 rotates, the main transmission shaft 15 pushes the main lock tongue 2 to translate along the main limiting groove 16. The second driving guide mechanism includes a secondary transmission shaft 17 fixed on the secondary gear 8, a secondary limiting groove 18 provided on the secondary lock tongue 3, the secondary transmission shaft 17 is inserted in the secondary limiting groove 18, when the secondary gear 8 rotates, the secondary transmission shaft 17 pushes the secondary lock tongue 3 to translate along the secondary limiting groove 18.

[0033] A main shaft sleeve is also sleeved on the main transmission shaft 15, and the outer wheel surface of the main shaft sleeve rotates against the inner side of the main limit groove 16; a secondary shaft sleeve is also sleeved on the secondary transmission shaft 17, and the outer wheel surface of the secondary shaft sleeve rotates against the inner side of the secondary limit groove 18. An extension piece 19 is fixed on the main gear 6, and the main transmission shaft 15 is fixed on the extension piece 19; an extension piece 20 is fixed on the secondary gear 8, and the secondary transmission shaft 17 is fixed on the extension piece 20.

[0034] The main rack 5 and auxiliary rack 7 described in the utility model can be rack parts processed separately, or can be toothed parts processed on the top and bottom rods 4 and integrated with the top and bottom rods 4. The main rack 5, auxiliary rack 7 and top and bottom rods 4 described in this embodiment are integrally formed.

[0035] It should be understood that in the claims and description of the utility model, all "including..." should be understood as an open-ended meaning, that is, its meaning is equivalent to "at least contains...", and should not be understood as a closed meaning, that is, its meaning should not be understood as "only includes...".

[0036] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A transmission structure of a secondary lock top and bottom rod, arranged in a lock body (1), wherein a main lock tongue (2), two secondary lock tongues (3), and two top and bottom rods (4) are movably arranged in the lock body (1), and a driving member is arranged in the lock body (1) for driving the main lock tongue (2) to translate horizontally to lock or unlock; It is characterized in that The transmission structure comprises a transmission gear assembly arranged between the two sky and earth rods (4), the transmission gear assembly comprising a main rack (5) fixedly connected to the sky and earth rods (4), and a main gear (6) meshing with the two main racks (5). A driving guide mechanism is also arranged between the main lock tongue (2) and the main gear (6). When the main lock tongue (2) moves in translation, the main gear (6) is driven to rotate by the driving guide mechanism, so that the two main racks (5) and the two sky and earth rods (4) respectively move in longitudinal translation to lock or unlock. The transmission structure further comprises a second transmission gear assembly arranged between the auxiliary lock tongue (3) and the top and bottom rod (4), the second transmission gear assembly comprising a secondary rack (7) fixedly connected to the top and bottom rod (4), and a secondary gear (8) meshing with the secondary rack (7); when the top and bottom rod (4) translates, the secondary gear (8) is synchronously driven to rotate; a second driving guide mechanism is further arranged between the auxiliary lock tongue (3) and the secondary gear (8); when the secondary gear (8) rotates, the auxiliary lock tongue (3) is driven to translate horizontally through the second driving guide mechanism to lock or unlock.

2. The transmission structure of the auxiliary lock top and bottom rod according to claim 1, characterized in that: A guide mechanism is further provided between the main lock tongue (2) and the lock body (1), for limiting the main lock tongue (2) to be able to translate only in the lateral direction; the guide mechanism comprises a guide groove (9) provided on the main lock tongue (2), and a guide column (10) fixed on the lock body (1), wherein the guide column (10) is inserted into the guide groove (9), and the guide groove (9) extends in the lateral direction.

3. The transmission structure of the auxiliary lock top and bottom rod according to claim 1, characterized in that: A second guide mechanism is further provided between the auxiliary lock tongue (3) and the lock body (1), for limiting the auxiliary lock tongue (3) to be able to translate only in the lateral direction; the second guide mechanism comprises a second guide groove (11) provided on the auxiliary lock tongue (3), and a second guide column (12) fixed on the lock body (1), wherein the second guide column (12) is inserted into the second guide groove (11), and the second guide groove (11) extends in the lateral direction.

4. The transmission structure of the auxiliary lock top and bottom rod according to claim 1, characterized in that: A guide mechanism three is also provided between the top and bottom rods (4) and the lock body (1), for limiting the top and bottom rods (4) to be able to translate only in the longitudinal direction; the guide mechanism three comprises a guide groove three (13) provided on the top and bottom rods (4), and a guide column three (14) fixed on the lock body (1), wherein the guide column three (14) is inserted into the guide groove three (13), and the guide groove three (13) extends in the longitudinal direction.

5. The transmission structure of the auxiliary lock top and bottom rod according to claim 1, characterized in that: The driving guide mechanism 1 comprises a main transmission shaft (15) fixedly mounted on the main gear (6), and a main limiting groove (16) formed on the main lock tongue (2), wherein the main limiting groove (16) extends along the moving direction of the top and bottom rods (4), and the main transmission shaft (15) is inserted into the main limiting groove (16). When the main gear (6) rotates, the main transmission shaft (15) pushes the main lock tongue (2) to move in translation along the main limiting groove (16).

6. The transmission structure of the auxiliary locking top and bottom rod according to claim 5, characterized in that: The second driving guide mechanism comprises a secondary transmission shaft (17) fixedly mounted on the secondary gear (8) and a secondary limiting groove (18) formed on the secondary lock tongue (3), wherein the secondary transmission shaft (17) is inserted into the secondary limiting groove (18), and when the secondary gear (8) rotates, the secondary transmission shaft (17) pushes the secondary lock tongue (3) to move in translation along the secondary limiting groove (18).

7. The transmission structure of the auxiliary locking top and bottom rod according to claim 6, characterized in that: The main transmission shaft (15) is also sleeved with a main shaft sleeve, the outer wheel surface of which rotates against the inner side surface of the main limiting groove (16); the auxiliary transmission shaft (17) is also sleeved with a secondary shaft sleeve, the outer wheel surface of which rotates against the inner side surface of the secondary limiting groove (18).

8. The transmission structure of the auxiliary locking top and bottom rod according to claim 6, characterized in that: The main gear (6) is fixedly provided with an extension piece 1 (19), and the main transmission shaft (15) is fixedly provided on the extension piece 1 (19); the secondary gear (8) is fixedly provided with an extension piece 2 (20), and the secondary transmission shaft (17) is fixedly provided on the extension piece 2 (20).

9. The transmission structure of the auxiliary locking top and bottom rod according to claim 1, characterized in that: The main gear (6) is located between the two main racks (5), and when the main gear (6) rotates, it can drive the two main racks (5) to translate in opposite directions.

10. The transmission structure of the auxiliary locking top and bottom rod according to claim 1, characterized in that: The main rack (5), the auxiliary rack (7), and the top and bottom rods (4) are integrally formed.

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