Transmission lock box and lock comprising same

Abstract

The utility model discloses a transmission lock box and lock including it, transmission lock box includes: box seat is provided with accommodating cavity, first fastening board is fixed in the accommodating cavity, second fastening board is fixed in the accommodating cavity, and first fastening board and second fastening board are formed with assembly space, box body is embedded in the assembly space, first gear part is rotatably arranged in the box body, moving part is engagedly connected to the first gear part, under the driving of first gear part, moving part does linear reciprocating motion, first sliding part is in accommodating cavity and is slidably connected to first fastening board, and first sliding part is connected with moving part and follows moving part synchronous motion, and first sliding part is provided with first rack part, second sliding part is in accommodating cavity and is slidably connected to second fastening board, and second sliding part is provided with second rack part, second gear part is set up in the accommodating cavity and is engagedly connected between first rack part and second rack part, and first rack part and second rack part move reversely to each other.

Description

Technical Field

[0001] This utility model belongs to the technical field of door and window hardware accessories, specifically relating to a transmission lock box and a lock including the same. Background Technology

[0002] In related technologies, there is a type of lock in which the lock body is located on the upper or lower part of the door or window sash, so as to move the lock tongue out of the user's line of sight. The lock also includes a transmission lock box, which is installed on the door or window sash, located above or below the lock body. The transmission lock box is connected to the lock body to drive the extension and retraction of the lock tongue.

[0003] Chinese Patent Publication No. CN217354266U discloses a door and window transmission lock box, which includes a box body assembly, a box base, and a fastening plate. The box body assembly and the box base are respectively located on both sides of the fastening plate and are fixedly connected to it. The box body assembly includes a cover plate and a cavity. Two cover plates are provided, located on both sides of the cavity. The box body assembly also includes screw studs that pass through fixing holes on the cover plate and fixing cavities in the cavity to fix the cavity and the cover plates on both sides. A gear is disposed in the cavity. The box base has a sliding plate with end caps at both ends. The end caps have engaging protrusions that mate with engaging grooves on the fastening plate, ensuring a tight connection between the box base and the fastening plate. The gear and the moving part together form a translational limiting mechanism. The gear has teeth that mesh with the meshing holes of the moving part. When the gear rotates in the cavity, the teeth mesh with the meshing holes, causing the moving part to move horizontally in the tangential direction of the meshing. The movable part is also provided with a connecting hole. A drive rack is located within the slide plate of the housing. The connecting hole is fixedly connected to a connecting plate on the drive rack. The drive rack also has drive meshing teeth, which mesh with a reversing gear within the slide plate. When the gear rotates, driving the movable part to move horizontally, the drive rack fixedly connected to the movable part moves horizontally synchronously. The drive meshing teeth on the drive rack mesh with the reversing gear, driving the reversing gear to rotate. A driven rack is located on the side of the reversing gear away from the drive rack. The driven meshing teeth on the driven rack mesh with the reversing gear. When the reversing gear rotates, it drives the driven rack to move horizontally. The driven rack and the drive rack move the same distance but in opposite directions. The housing also contains two moving pins. One moving pin is fixedly connected to the end of the drive rack, and the other moving pin is fixedly connected to the end of the driven rack. The moving pins mate with a slide rail on the fastening plate, allowing them to move within the slide rail.

[0004] However, the fastening plate of the aforementioned door and window transmission lock box is relatively large, occupying a lot of space, and the connection between the box assembly and the fastening plate is also relatively inconvenient. This makes the door and window transmission lock box have the disadvantages of not being compact enough in structure and not being convenient to assemble. Utility Model Content

[0005] In order to overcome at least one of the defects described in the prior art, the present invention provides a transmission lock box and a lock including the same, so as to solve the problems that the structure of the door and window transmission lock box is not simple and compact enough and the assembly is not convenient enough in the prior art.

[0006] The technical solution adopted by this utility model to solve its problem is: A transmission lock box includes: a box base with a receiving cavity; a first fastening plate fixed in the receiving cavity; a second fastening plate fixed in the receiving cavity, the first fastening plate and the second fastening plate forming an assembly space; a box body embedded in the assembly space; a first gear component rotatably disposed in the box body; a moving part meshing with the first gear component, the moving part performing linear reciprocating motion under the drive of the first gear component; a first sliding member disposed in the receiving cavity and slidably connected to the first fastening plate, the first sliding member connecting with the moving part and moving synchronously with the moving part, the first sliding member having a first rack portion; a second sliding member disposed in the receiving cavity and slidably connected to the second fastening plate, the second sliding member having a second rack portion; and a second gear component disposed in the receiving cavity and meshing between the first rack portion and the second rack portion, the first rack portion and the second rack portion moving in opposite directions under the drive of the second gear component.

[0007] In one embodiment of this utility model, the transmission lock box further includes a first fixing block and a first connecting member, the first fixing block being embedded in the receiving cavity, and the first connecting member passing through the box base, the first fixing block, and the first fastening plate; and / or, the transmission lock box further includes a second fixing block and a second connecting member, the second fixing block being embedded in the receiving cavity, and the second connecting member passing through the box base, the second fixing block, and the second fastening plate.

[0008] As an optional implementation, the moving part is integrally formed on the first sliding member.

[0009] As an optional implementation, the housing is provided with a rotating cavity, and the first gear is disposed in the rotating cavity.

[0010] As an optional implementation, the first fastening plate is provided with a shaft, and the second gear is sleeved on the shaft.

[0011] As an optional implementation, the second fastening plate is provided with a shaft, and two second gear components are provided, with the two second gear components located on both sides of the first gear component. One second gear component is sleeved on the shaft of the first fastening plate, and the other second gear component is sleeved on the shaft of the second fastening plate. The first sliding member is provided with two first rack portions extending along its own sliding direction at intervals, and the second sliding member is provided with two second rack portions extending along its own sliding direction at intervals. Each second gear component is meshed between the opposing first rack portions and second rack portions.

[0012] As an optional implementation, the transmission lock box further includes a connecting block connected to the box body, and the outer wall of the box body and the connecting block are used to clamp and fix the door and window sash frame.

[0013] As an optional implementation, the transmission lock box further includes a third connector, which is rotatably disposed on the box body and threadedly connected to the connecting block.

[0014] As an optional implementation, the first fastening plate has a first sliding groove, and the first sliding member is slidably connected to the first sliding groove; and / or, the second fastening plate has a second sliding groove, and the second sliding member is slidably connected to the second sliding groove.

[0015] In addition, this utility model also provides a lock, which includes a transmission lock box as described in any of the above embodiments, and a lock body, wherein the first sliding member and / or the second sliding member are throttle connected to the lock body.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: By using the spaced arrangement of the first and second fastening plates, the box is embedded in the assembly space, significantly reducing the volume of the fastening plates, eliminating unnecessary parts and complex structures, making the overall structure simpler and clearer, and optimizing space utilization. Furthermore, the connection and installation methods between the components are relatively simple, and the box is fixed by embedding, reducing assembly difficulty, improving assembly efficiency, reducing assembly time and labor costs, which is conducive to large-scale production and application. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the transmission lock box (when the box base is disassembled) according to an embodiment of this application from a first perspective. Figure 2 This is a three-dimensional structural diagram of the transmission lock box (when the box base is disassembled) according to an embodiment of this application from a second perspective; Figure 3 This is an exploded structural diagram of the transmission lock box according to an embodiment of this application; Figure 4 This is a structural schematic diagram of the transmission lock box (the first transmission member and the second transmission member move to a position far away from each other, and the box base is not shown) in a third-view embodiment of this application. Figure 5 This is a structural schematic diagram of the transmission lock box (the first transmission member and the second transmission member move to a position close to each other, the box base is not shown) in an embodiment of this application from a third-view perspective.

[0019] Explanation of key figure labels: 1. Box base; 11. Receiving cavity; 12. Operating hole; 13. Connecting hole; 2. First fastening plate; 21. First slide groove; 3. Second fastening plate; 31. Second slide groove; 4. Box body; 41. Rotating cavity; 42. Connecting cavity; 5. First gear component; 6. Moving part; 7. First sliding component; 71. First rack component; 8. Second sliding component; 82. Second rack component; 9. Second gear component; 10. Connecting block; 20. First transmission component; 30. Second transmission component; 40. First fixing block; 50. Second fixing block; 60. First connecting component; 70. Second connecting component; 80. Third connecting component; 90. Shaft; 100. Assembly space. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0022] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0023] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0024] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0025] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0026] Please see Figures 1 to 5 This application provides a transmission lock box, which includes a box base 1, a first fastening plate 2, a second fastening plate 3, a box body 4, a first gear component 5, a second gear component 9, a moving part 6, a first sliding member 7, and a second sliding member 8. The box base 1 is provided with a receiving cavity 11. The first fastening plate 2 is fixed in the receiving cavity 11. The second fastening plate 3 is fixed in the receiving cavity 11, and the first fastening plate 2 and the second fastening plate 3 are spaced apart to form an assembly space 100. The box body 4 is embedded in the assembly space 100. The first gear component 5 is rotatably disposed on the box body 4. The moving part 6 is meshed with the first gear component 5. Driven by the moving part 6, the moving part 6 performs linear reciprocating motion; the first sliding member 7 is disposed in the receiving cavity 11 and slidably connected to the first fastening plate 2. The first sliding member 7 is connected to the moving part 6 and moves synchronously with the moving part 6. The first sliding member 7 is provided with a first rack part 71; the second sliding member 8 is disposed in the receiving cavity 11 and slidably connected to the second fastening plate 3. The second sliding member 8 is provided with a second rack part 82; the second gear 9 is disposed in the receiving cavity 11 and meshes between the first rack part 71 and the second rack part 82. Under the transmission of the second gear 9, the first rack part 71 and the second rack part 82 move in opposite directions to each other.

[0027] The transmission lock box provided in this application embodiment, through the spaced arrangement of the first fastening plate 2 and the second fastening plate 3, embeds the box body 4 within the assembly space 100, significantly reducing the volume of the fastening plates, reducing unnecessary parts and complex structures, making the overall structure simpler and clearer, and optimizing space utilization; moreover, the connection and installation methods between the various components are relatively simple, and the box body 4 is fixed by embedding, reducing assembly difficulty, improving assembly efficiency, reducing assembly time and labor costs, which is conducive to large-scale production and application.

[0028] In one embodiment, the installation steps of the transmission lock box can be as follows: S1: Connect the first sliding member 7 to the moving part 6 to ensure that the first sliding member 7 can move synchronously with the moving part 6. At the same time, slide the first sliding member 7 to the first fastening plate 2. Orient the first rack part 71 on the first sliding member 7 to a suitable position so as to mesh with the second gear 9 to be installed later. Then, place the first sliding member 7 and the first fastening plate 2 together in the receiving cavity 11.

[0029] S2: Similarly, the second sliding member 8 is slidably connected to the second fastening plate 3. The second sliding member 8 and the second fastening plate 3 are jointly disposed in the receiving cavity 11. The second rack portion 82 on the second sliding member 8 is also adjusted to a suitable position. The second gear 9 is then disposed in the receiving cavity 11 and the second gear 9 is meshed between the first rack portion 71 and the second rack portion 82.

[0030] S3: Rotate the first gear 5 inside the housing 4 to ensure that it can rotate freely. Then, embed the housing 4 into the assembly space 100 formed between the first fastening plate 2 and the second fastening plate 3. At the same time, mesh the moving part 6 with the first gear 5 so that the moving part 6 can make linear reciprocating motion under the drive of the first gear 5.

[0031] like Figure 3 , Figure 4 and Figure 5As shown, in one embodiment, the transmission lock box further includes a first fixing block 40 and a first connecting member 60. The first fixing block 40 is embedded in the receiving cavity 11, and the first connecting member 60 passes through the box base 1, the first fixing block 40, and the first fastening plate 2. With this configuration, firstly, the first fixing block 40, embedded in the receiving cavity 11, provides a stable support point for the entire internal structure of the transmission lock box. The first connecting member 60, passing through the box base 1, the first fixing block 40, and the first fastening plate 2, tightly connects these three key components together. This multi-component collaborative fixing method greatly enhances the stability of the overall structure of the transmission lock box, effectively reducing problems such as component loosening and displacement caused by vibration, external impact, etc., during long-term use, ensuring that the transmission lock box can always maintain a stable operating state. Secondly, the first fixing block 40 is embedded in the receiving cavity 11, providing a precise positioning reference for the installation of the first fastening plate 2. During assembly, the first fixing block 40 can be accurately installed in the designated position of the receiving cavity 11 firstly, and then the first fastening plate 2 can be connected to the first fixing block 40 and the box base 1 through the first connector 60. This ensures that the installation position of the first fastening plate 2 is accurate and improves the assembly accuracy of the entire transmission lock box. Thirdly, the first fixing block 40 is embedded in the receiving cavity 11 without occupying additional space, making the internal structure of the transmission lock box more compact. This compact layout is beneficial for installing the transmission lock box in the limited space of the door and window sash, improving space utilization. At the same time, the compact structure also reduces the volume of the transmission lock box, making it lighter and easier to transport and install.

[0032] like Figure 3 , Figure 4 and Figure 5As shown, in one embodiment, the transmission lock box further includes a second fixing block 50 and a second connecting member 70. The second fixing block 50 is embedded in the receiving cavity 11, and the second connecting member 70 passes through the box base 1, the second fixing block 50, and the second fastening plate 3. This arrangement provides, firstly, a stable support point for the entire internal structure of the transmission lock box by embedding the second fixing block 50 within the receiving cavity 11, and secondly, a tight connection between the box base 1, the second fixing block 50, and the second fastening plate 3 by passing through the second connecting member 70. This multi-component coordinated fixing method greatly enhances the overall stability of the transmission lock box structure, effectively reducing problems such as component loosening and displacement caused by vibration, external impact, etc., during long-term use, ensuring that the transmission lock box can always maintain a stable operating state. Secondly, the second fixing block 50 is embedded in the receiving cavity 11, providing a precise positioning reference for the installation of the second fastening plate 3. During assembly, the second fixing block 50 can be accurately installed in the designated position of the receiving cavity 11 first, and then the second fastening plate 3 can be connected to the second fixing block 50 and the box base 1 through the second connector 70. This ensures that the installation position of the second fastening plate 3 is accurate and improves the assembly accuracy of the entire transmission lock box. Thirdly, the second fixing block 50 is embedded in the receiving cavity 11 without occupying additional space, making the internal structure of the transmission lock box more compact. This compact layout is beneficial for installing the transmission lock box in the limited space of the door and window sash, improving space utilization. At the same time, the compact structure also reduces the volume of the transmission lock box, making it lighter and easier to transport and install.

[0033] like Figure 3 , Figure 4 and Figure 5 As shown, in one embodiment, the moving part 6 is integrally formed with the first sliding member 7. This integral forming of the moving part 6 and the first sliding member 7 eliminates the connection gaps and weak points that may exist in traditional connection methods. The integrated structure allows both to share the load under stress, forming a more robust whole and greatly enhancing the overall rigidity of the transmission lock box. Under conditions of frequent opening and closing of doors and windows and the transmission lock box bearing significant external forces, this structure can effectively resist deformation and ensure the relative stability of the components. Furthermore, the integrated design makes the structure of the moving part 6 and the first sliding member 7 more compact, reducing the space they occupy within the transmission lock box. This helps to further optimize the overall structure of the transmission lock box, allowing for a more rational arrangement of other components within the limited space of door and window sashes, improving space utilization, and making the transmission lock box smaller, lighter, and easier to install and use.

[0034] It should be noted that in some other embodiments, the moving part 6 may also be connected to the first sliding member 7 by welding or screwing, depending on the actual needs, and no single limitation is made here.

[0035] like Figure 1 and Figure 3 As shown, in one embodiment, a rotating cavity 41 is provided inside the housing 4, and the first gear component 5 is disposed within the rotating cavity 41. This arrangement has several advantages. First, the rotating cavity 41 provides the first gear component 5 with a relatively independent and stable working environment, reducing the impact of external impurities and dust on the meshing parts of the first gear component 5. A good working environment ensures the meshing accuracy between the first gear component 5 and other gears or racks, making the transmission more accurate and reliable, and avoiding transmission errors and malfunctions caused by poor meshing. Second, placing the first gear component 5 within the rotating cavity 41 achieves a centralized layout of components. Compared to a distributed layout, this compact structural design reduces unnecessary space waste, making the overall structure of the transmission lock box more compact. This is beneficial for achieving complex functions within a limited space, especially suitable for scenarios with stringent space requirements, such as doors and windows. Third, the rotating cavity 41 provides clear positioning and guidance for the assembly of the first gear component 5. Operators can quickly and accurately install the first gear component 5 into the designated position during production, improving assembly efficiency and consistency of assembly quality. Simultaneously, this standardized assembly method also facilitates automated production and reduces production costs. like Figure 1 and Figure 3 As shown, in one embodiment, a shaft 90 is provided on the first fastening plate 2, and the second gear 9 is sleeved on the shaft 90. With this arrangement, the first fastening plate 2 provides stable support and precise positioning for the shaft 90. The shaft 90 serves as the rotation center of the second gear 9, and the accuracy of its position directly affects the meshing accuracy of the second gear 9 with other moving parts. By fixing it with the first fastening plate 2, the shaft 90 can maintain a stable position, ensuring that the second gear 9 will not deviate or wobble during rotation, thereby guaranteeing the stability and reliability of the entire transmission system. Furthermore, by placing the shaft 90 on the first fastening plate 2 and directly sleeved on the second gear 90, this design makes the internal structure of the transmission lock box more compact, the layout between various components more closely spaced, and reduces unnecessary space occupation. It is particularly suitable for door and window transmission scenarios with strict space requirements, enabling complex transmission functions to be achieved within a limited space.

[0036] like Figure 1 and Figure 3As shown, in one embodiment, a shaft 90 is provided on the second fastening plate 3, and two second gear components 9 are provided. The two second gear components 9 are respectively located on both sides of the first gear component 5. One second gear component 9 is sleeved on the shaft 90 of the first fastening plate 2, and the other second gear component 9 is sleeved on the shaft 90 of the second fastening plate 3. Correspondingly, the first sliding member 7 is provided with two first rack portions 71 extending along its own sliding direction at intervals, and the second sliding member 8 is provided with two second rack portions 82 extending along its own sliding direction at intervals. Each second gear component 9 is meshed between the opposing first rack portions 71 and second rack portions 82. This design makes the entire transmission system more structurally balanced. This symmetrical structure can evenly distribute the forces and torques generated during transmission, reducing component deformation or damage caused by uneven force distribution, and improving the overall structural stability and reliability of the transmission lock box. The symmetrical and stable structural layout reduces the vibration and impact of gears during transmission, making the meshing between gears and racks smoother and creating a quiet and comfortable operating environment for users. Furthermore, when one of the second gear components 9 or its related components fails, the other second gear component 9 may still maintain a certain degree of transmission function, improving the redundancy of the transmission system.

[0037] like Figure 1 and Figure 2 As shown, in one embodiment, the housing 1 is provided with a connecting hole 13, and one end of the shaft 90 passes through the connecting hole 13.

[0038] like Figure 2 and Figure 3 As shown, in one embodiment, the transmission lock box further includes a connecting block 10, which is connected to the box body 4. The outer wall of the box body 4 and the connecting block 10 are used to clamp and fix the door and window sash frame. This configuration has two advantages: First, the design of the connecting block 10 simplifies the installation process. Installers only need to place the box body 4 and the connecting block 10 at appropriate positions on the door and window sash frame, and then clamp them onto the frame using simple operations (such as tightening screws). No complex positioning and adjustment steps are required, improving installation efficiency and reducing installation difficulty and cost. Second, this clamping and fixing method has strong versatility and can adapt to door and window sash frames of different thicknesses and materials. By adjusting the distance between the connecting block 10 and the box body 4 or selecting different specifications of the connecting block 10, the installation and fixing of various doors and windows can be easily achieved, reducing the hassle of needing to customize special fixing devices due to differences in door and window specifications.

[0039] like Figure 2 , Figure 3 and Figure 4As shown, in one embodiment, the transmission lock box further includes a third connector 80, which is rotatably disposed on the box body 4 and threadedly connected to the connecting block 10. Thus, by rotating the third connector 80, the connecting block 10 can be driven to move along the axis of the third connector 80, so as to clamp and fix the door and window sash frame together with the outer wall of the box body 4. The structure is simple and the operation is convenient.

[0040] like Figure 3 As shown, in one embodiment, the housing 4 is provided with a connecting cavity 42, and the third connector 80 is rotatably disposed within the connecting cavity 42. Thus, by providing the connecting cavity 42 within the housing 4 and rotatably disposing the third connector 80 within it, this integrated design makes the entire transmission lock box structure more compact, with each component arranged closely, reducing unnecessary space waste. This allows the transmission lock box to achieve complex functions within a limited space, making it particularly suitable for door and window installation scenarios with stringent space requirements. Furthermore, the presence of the connecting cavity 42 provides an independent installation space for the third connector 80, making the structural hierarchy of the housing 4 clearer. This layered design facilitates the classification, installation, and management of different components, reducing the complexity of the structural design and improving its rationality and maintainability.

[0041] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in one embodiment, the seat is provided with a through operating hole 12, which is opposite to the third connector 80. The operating hole 12 allows an operating tool (e.g., a screwdriver) to pass through, thereby connecting the operating tool to the third connector 80 to rotate the third connector 80.

[0042] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in one embodiment, the first fastening plate 2 has a first groove 21, and the first sliding member 7 is slidably connected to the first groove 21. Thus, the first groove 21 provides a clear movement trajectory for the first sliding member 7, ensuring that the first sliding member 7 can only move in a straight line along the direction of the groove. Furthermore, since the first groove 21 is located on the first fastening plate 2, no additional space is needed to install guide components, making the entire transmission system more compact. In situations where the interior space of doors and windows is limited, this compact design can make full use of space, leaving more room for the installation of other functional components (such as locks, sealing strips, etc.), thereby improving the overall space utilization rate of doors and windows.

[0043] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, in one embodiment, the transmission lock box includes a first transmission member 20, which is connected to a first sliding member 7. The first transmission member 20 is slidably disposed within a first sliding groove 21 and is used for transmission connection with the lock body. Thus, the first transmission member 20, connected to the first sliding member 7 and slidably disposed within the first sliding groove 21, and transmissionally connected with the lock body, forms a clear power transmission path. When the first sliding member 7 moves under external power (such as manually pushing a door or window handle or an electric drive device), it drives the first transmission member 20 to slide within the first sliding groove 21, thereby accurately transmitting power to the lock body, realizing the locking and opening functions of doors and windows, and ensuring the high efficiency and accuracy of the transmission.

[0044] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in one embodiment, the second fastening plate 3 has a second sliding groove 31, and the second sliding member 8 is slidably connected to the second sliding groove 31. Thus, the second sliding groove 31 provides a clear movement trajectory for the second sliding member 8, ensuring that the second sliding member 8 can only move in a straight line along the direction of the groove. Furthermore, since the second sliding groove 31 is located on the second fastening plate 3, no additional space is needed to install guide components, making the entire transmission system more compact. In situations where the interior space of doors and windows is limited, this compact design can make full use of space, leaving more room for the installation of other functional components (such as locks, sealing strips, etc.), thereby improving the overall space utilization rate of doors and windows.

[0045] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in one embodiment, the transmission lock box includes a second transmission member 30, which is connected to a second sliding member 8 and slidably disposed within a second sliding groove 31. The second transmission member 30 is used for transmission connection with the lock body. Thus, the second transmission member 30, connected to the second sliding member 8 and slidably disposed within the second sliding groove 31, and transmissionally connected with the lock body, forms a clear power transmission path. When the second sliding member 8 moves under external power (such as manually pushing a door or window handle or an electric drive device), it drives the second transmission member 30 to slide within the second sliding groove 31, thereby accurately transmitting power to the lock body, realizing the locking and opening functions of doors and windows, and ensuring the efficiency and accuracy of the transmission.

[0046] Specifically, since the first rack portion 71 and the second rack portion 82 move in opposite directions to each other, the first sliding member 7 and the second sliding member 8 drive the first transmission member 20 and the second transmission member 30 to move away from or towards each other.

[0047] In one embodiment, the axes of the first gear component 5 and the second gear component 9 are perpendicular to each other.

[0048] In addition, this application also provides a lock, including a transmission lock box as described in any of the above embodiments, and a lock body, wherein the first sliding member 7 and / or the second sliding member 8 are tractively connected to the lock body.

[0049] Specifically, in one embodiment, a lock body is provided, which is used to be installed on the upper or lower side of the door or window sash, and the first sliding member 7 or the second sliding member 8 is connected to the lock body.

[0050] Specifically, in one embodiment, two lock bodies are provided, which are respectively used to install on the upper and lower sides of the door and window sash. The first sliding member 7 is driven to one of the lock bodies, and the second sliding member 8 is driven to the other lock body.

[0051] In one embodiment, the first gear 5 is used to connect with the handle of the lock. Driven by the handle, the first gear 5 rotates to drive the moving part 6 to perform linear reciprocating motion.

[0052] In summary, the transmission lock box and lock including the present invention disclosed herein can bring at least the following beneficial technical effects: (1) By using the spaced arrangement of the first fastening plate 2 and the second fastening plate 3, the box body 4 is embedded in the assembly space 100, which significantly reduces the volume of the fastening plate, reduces unnecessary parts and complex structures, makes the overall structure simpler and clearer, and optimizes the space utilization. (2) The connection and installation of each component is relatively simple. The box 4 is fixed by embedding, which reduces the assembly difficulty, improves the assembly efficiency, reduces the assembly time and labor cost, and is conducive to large-scale production and application. (3) The first fixing block 40 is embedded in the receiving cavity 11, providing a stable support point for the entire internal structure of the transmission lock box. The first connecting piece 60 passes through the box base 1, the first fixing block 40 and the first fastening plate 2, tightly connecting these three key components together, effectively reducing the problems of component loosening and displacement caused by vibration, external impact and other factors during long-term use. (4) The first gear component 5 is set in the rotating cavity 41, realizing the centralized layout of the components. Compared with the decentralized layout, this compact structural design reduces unnecessary space waste and makes the overall structure of the transmission lock box more compact. It is conducive to realizing complex functions in a limited space, especially suitable for scenarios with strict space requirements such as doors and windows.

[0053] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A transmission lock box, characterized in that, The transmission lock box includes: The box base (1) is provided with a receiving cavity (11); The first fastening plate (2) is fixed inside the receiving cavity (11); The second fastening plate (3) is fixed in the receiving cavity (11), and the first fastening plate (2) and the second fastening plate (3) are spaced apart to form an assembly space (100); The box body (4) is embedded in the assembly space (100); The first gear component (5) is rotatably mounted on the housing (4); The moving part (6) is meshed with the first gear (5). Driven by the first gear (5), the moving part (6) performs linear reciprocating motion. The first sliding member (7) is disposed in the receiving cavity (11) and slidably connected to the first fastening plate (2). The first sliding member (7) is connected to the moving part (6) and moves synchronously with the moving part (6). The first sliding member (7) is provided with a first rack part (71). The second sliding member (8) is disposed in the receiving cavity (11) and slidably connected to the second fastening plate (3). The second sliding member (8) is provided with a second rack portion (82). The second gear (9) is disposed in the receiving cavity (11) and meshed between the first rack portion (71) and the second rack portion (82). Under the transmission of the second gear (9), the first rack portion (71) and the second rack portion (82) move in opposite directions to each other.

2. The transmission lock box according to claim 1, characterized in that, The transmission lock box further includes a first fixing block (40) and a first connecting member (60), the first fixing block (40) being embedded in the receiving cavity (11), and the first connecting member (60) passing through the box base (1), the first fixing block (40) and the first fastening plate (2); and / or, the transmission lock box further includes a second fixing block (50) and a second connecting member (70), the second fixing block (50) being embedded in the receiving cavity (11), and the second connecting member (70) passing through the box base (1), the second fixing block (50) and the second fastening plate (3).

3. The transmission lock box according to claim 1, characterized in that, The moving part (6) is integrally formed on the first sliding member (7).

4. The transmission lock box according to claim 1, characterized in that, The box body (4) is provided with a rotating cavity (41), and the first gear component (5) is disposed in the rotating cavity (41).

5. The transmission lock box according to claim 1, characterized in that, A shaft (90) is provided on the first fastening plate (2), and the second gear (9) is sleeved on the shaft (90).

6. The transmission lock box according to claim 5, characterized in that, The second fastening plate (3) is provided with a shaft (90), and there are two second gear components (9). The two second gear components (9) are located on both sides of the first gear component (5). One second gear component (9) is sleeved on the shaft (90) of the first fastening plate (2), and the other second gear component (9) is sleeved on the shaft (90) of the second fastening plate (3). The first sliding member (7) is provided with two first rack portions (71) extending along its own sliding direction at intervals, and the second sliding member (8) is provided with two second rack portions (82) extending along its own sliding direction at intervals. Each second gear component (9) is meshed between the first rack portion (71) and the second rack portion (82) that are opposite to each other.

7. The transmission lock box according to claim 1, characterized in that, The transmission lock box also includes a connecting block (10), which is connected to the box body (4). The outer wall of the box body (4) and the connecting block (10) are used to clamp and fix the door and window sash frame.

8. The transmission lock box according to claim 7, characterized in that, The transmission lock box also includes a third connector (80), which is rotatably disposed on the box body (4) and threadedly connected to the connecting block (10).

9. The transmission lock box according to claim 1, characterized in that, The first fastening plate (2) has a first sliding groove (21), and the first sliding member (7) is slidably connected to the first sliding groove (21), and / or, the second fastening plate (3) has a second sliding groove (31), and the second sliding member (8) is slidably connected to the second sliding groove (31).

10. A lock, characterized in that, The lock box includes the transmission lock box as described in any one of claims 1-9, and further includes a lock body, wherein the first sliding member (7) and / or the second sliding member (8) are tractively connected to the lock body.

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