Transmission box for door lock

Abstract

The utility model provides a transmission box for a door lock, and relates to the field of door locks, the transmission box comprises a track box, a lock box and a gear, the lock box is arranged at one end of the track box, a transmission shaft is arranged on the lock box, clamp blocks are arranged at the upper end and the lower end of the transmission shaft, an outward protruding part is arranged at one end of the transmission shaft, and a transmission part is arranged in the lock box; a groove is formed in one side of the transmission part, the outer protruding part extends into the groove, a first tooth set is arranged on the rail box, a second tooth set is arranged on the other side of the transmission part, the gear is meshed with the first tooth set and the second tooth set, and locking points are arranged at the upper end and the lower end of the rail box. The transmission part and the gear are adopted for transmission, the outer diameter of the gear of the power shaft is reduced, the transmission gears capable of achieving the speed change function are arranged at the two ends of the gear, the defect that the transmission stroke of fan-shaped gear teeth is reduced when the base is universal is overcome, and the transmission device is simple in structure and reasonable and reliable in design.

Description

Technical Field

[0001] This application relates to the field of door locks, and more specifically, to a transmission box for door locks. Background Technology

[0002] In the field of building doors and windows, casement windows are widely used due to their excellent water tightness, air tightness, wind pressure resistance, and thermal insulation. Their transmission locking devices are an essential choice to ensure the above-mentioned good performance. This type of transmission locking device refers to a device that realizes the multi-point locking function of doors and windows by rotating the handle. Its principle is that multiple cylindrical locking points are connected on the window sash through a connecting rod. Under the operation of the handle, the transmission gear and the sliding plate on the locking device drive several lock heads to move simultaneously. The lock heads slide into the locking blocks fixed on the window frame, thereby realizing the multi-point locking function of doors and windows.

[0003] The existing door lock transmission box has a complex internal structure and relies on springs, making it prone to damage during later use. Therefore, the current transmission box needs to be improved. Summary of the Invention

[0004] The purpose of this application is to provide a transmission box for door locks that can solve the above-mentioned technical problems.

[0005] This application provides a transmission box for a door lock, including a track box, a lock box, and gears. The lock box is disposed at one end of the track box, and a transmission shaft is disposed on the lock box. Clamping blocks are disposed at the upper and lower ends of the transmission shaft, and an outward protrusion is disposed at one end of the transmission shaft. A transmission component is disposed inside the lock box, and a groove is disposed on one side of the transmission component. The outward protrusion extends into the groove. A first set of teeth is disposed on the track box, and a second set of teeth is disposed on the other side of the transmission component. The gear meshes with the first set of teeth and the second set of teeth respectively. Locking points are disposed at both the upper and lower ends of the track box.

[0006] Preferably, the track box includes a box body, a first sliding member, and a second sliding member. The first sliding member and the second sliding member are both installed in the box body. The first sliding member is fixedly connected to the transmission member. The first gear set is disposed on the second sliding member. The locking point is disposed on the first sliding member or the second sliding member.

[0007] Preferably, both the first and second sliding members are provided with sliding grooves, and a locking piece is provided in the sliding groove.

[0008] Preferably, the clamp block is provided with a connecting through hole, and the lock box is provided with a clearance hole, and the connecting through hole and the clearance hole are used in conjunction.

[0009] Preferably, the drive shaft is provided with a square connecting hole.

[0010] Preferably, the track box, the lock box, and the gear are all made of metal.

[0011] Preferably, the two ends of the box are provided with sealing components.

[0012] The beneficial effects of this utility model are:

[0013] This utility model provides a transmission box for a door lock, including a track box, a lock box, and gears. The lock box is disposed at one end of the track box, and a transmission shaft is disposed on the lock box. Clamping blocks are disposed at the upper and lower ends of the transmission shaft, and an outward protrusion is disposed at one end of the transmission shaft. A transmission component is disposed inside the lock box, and a groove is disposed on one side of the transmission component, with the outward protrusion extending into the groove. A first gear set is disposed on the track box, and a second gear set is disposed on the other side of the transmission component. The gear meshes with the first gear set and the second gear set respectively. Locking points are disposed at both the upper and lower ends of the track box. This utility model uses a transmission component and gears for transmission, which reduces the outer diameter of the power shaft gear. This utility model compensates for the disadvantage of reduced transmission stroke of the sector-shaped gears when using transmission gears at both ends of the gear to achieve speed change function. This utility model has a simple structure and a reasonable and reliable design. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is a partial structural schematic diagram of the present invention.

[0018] The reference numerals in the attached figures are as follows:

[0019] 1. Track box; 2. Lock box; 3. Gear; 4. Clamping block; 5. Outer protrusion; 6. Transmission component; 8. Groove; 9. First gear set; 10. Second gear set; 11. Locking point; 12. Box body; 13. First sliding component; 14. Second sliding component; 15. Sliding groove; 16. Locking piece; 17. Connecting through hole; 18. Square connecting hole; 19. Sealing component. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] like Figure 1-3As shown, a transmission box for a door lock includes a track box 1, a lock box 2, and a gear 3. The lock box 2 is located at one end of the track box 1. A transmission shaft is provided on the lock box 2, and clamping blocks 4 are provided at the upper and lower ends of the transmission shaft. An external protrusion 5 is provided at one end of the transmission shaft. A transmission component 6 is provided inside the lock box 2. A groove 8 is provided on one side of the transmission component 6, and the external protrusion 5 extends into the groove 8. A first gear set 9 is provided on the track box 1, and a second gear set 10 is provided on the other side of the transmission component 6. The gear 3 meshes with the first gear set 9 and the second gear set 10 respectively. Locking points 11 are provided at both the upper and lower ends of the track box 1. This utility model uses the transmission component 6 and the gear 3 for transmission, which reduces the outer diameter of the power shaft gear 3. This utility model compensates for the disadvantage of reduced transmission stroke of the sector-shaped gear teeth when the base is universal by using transmission gears 3 at both ends of the gear 3 that can realize speed change function. This utility model has a simple structure and a reasonable and reliable design.

[0027] In this embodiment, the track box 1 includes a box body 12, a first sliding member 13, and a second sliding member 14. The first sliding member 13 and the second sliding member 14 are both installed inside the box body 12. The first sliding member 13 is fixedly connected to the transmission member 6. The first gear set 9 is disposed on the second sliding member 14. The locking point 11 is disposed on the first sliding member 13 or the second sliding member 14. Specifically, when the rotating shaft is turned, the transmission member 6 drives the gear 3 to rotate, causing the first sliding member 13 and the second sliding member 14 to move closer or further apart, so that the locking point 11 engages or disengages from the lock cylinder.

[0028] like Figure 3 As shown, in this embodiment, both the first sliding member 13 and the second sliding member 14 are provided with sliding grooves 15, and a locking piece 16 is provided in the sliding groove 15. Similarly, during the sliding process of the first sliding member 13 and the second sliding member 14, the locking piece 16 can be locked or unlocked.

[0029] like Figure 1-3 As shown, in this embodiment, the clamp block 4 is provided with a connecting through hole 17, and the lock box 2 is provided with a clearance hole. The connecting through hole 17 and the clearance hole are used together. The connecting through hole 17 of this utility model is used to connect handles without bases and handles with bases, which can effectively improve the applicability of the transmission lock box 2, making the transmission lock box 2 suitable for doors and windows with base handles and for doors and windows without base handles.

[0030] like Figure 3 As shown in this embodiment, a square connecting hole 18 is provided on the drive shaft. The square connecting hole 18 of this utility model is used to install the handle and can prevent slippage during use.

[0031] In this embodiment, in order to extend the service life of the present invention, the track box 1, the lock box 2, and the gear 3 are all made of metal.

[0032] like Figure 1-2 As shown in this embodiment, in order to prevent impurities from entering the interior of the box 12, sealing members 19 are provided at both ends of the box 12.

[0033] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A transmission box for a door lock, characterized in that: The device includes a track box, a lock box, and gears. The lock box is located at one end of the track box and has a drive shaft. The drive shaft has clamps at its upper and lower ends and an outward protrusion at one end. The lock box contains a transmission component, which has a groove on one side and the outward protrusion extends into the groove. The track box has a first set of teeth, and the transmission component has a second set of teeth on the other side. The gears mesh with the first and second sets of teeth, respectively. Locking points are located at both the upper and lower ends of the track box.

2. The transmission box for a door lock according to claim 1, characterized in that: The track box includes a box body, a first sliding member, and a second sliding member. The first sliding member and the second sliding member are both installed in the box body. The first sliding member is fixedly connected to the transmission member. The first gear set is disposed on the second sliding member. The locking point is disposed on the first sliding member or the second sliding member.

3. A transmission box for a door lock according to claim 2, characterized in that: Both the first and second sliding members are provided with sliding grooves, and a locking piece is provided in the sliding groove.

4. A transmission box for a door lock according to claim 1, characterized in that: The clamp block is provided with a connecting through hole, and the lock box is provided with a clearance hole. The connecting through hole and the clearance hole are used in conjunction.

5. A transmission box for a door lock according to claim 1, characterized in that: The drive shaft is provided with a square connecting hole.

6. A transmission box for a door lock according to claim 1, characterized in that: The track box, the lock box, and the gear are all made of metal.

7. A transmission box for a door lock according to claim 2, characterized in that: The box body is equipped with sealing components at both ends.

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