A transmission locking mechanism and door / window

Abstract

This utility model provides a transmission locking mechanism and a door / window. The transmission locking mechanism includes a housing, a transmission wheel, a transmission housing connecting rod, and a reinforcing structure. The housing is used to be fitted into the mounting groove of the door / window. The transmission wheel is rotatably connected to the housing, and its outer circumference is provided with several transmission teeth. The transmission housing connecting rod is used to connect to the transmission bar inside the door / window. The transmission housing connecting rod is slidably connected to the housing, and it has several transmission holes in the sliding direction. The transmission teeth are used to insert into the corresponding transmission holes when the transmission wheel rotates, driving the transmission bar to slide. The reinforcing structure is provided on both sides of the transmission wheel. The transmission teeth are laser-cut into stainless steel, and square transmission holes are punched into the connecting rod to achieve the transmission cooperation between the transmission wheel and the transmission housing connecting rod, thereby realizing the transmission of the transmission bar and opening and closing the door / window. The transmission wheel and transmission housing connecting rod structure of this solution are simple, easy to form, low in cost, and require fewer parts, thus simultaneously meeting strength and price requirements.

Description

Technical Field

[0001] This utility model relates to the technical field of door and window hardware, and in particular to a transmission locking mechanism and a door / window. Background Technology

[0002] There are two common types of transmission locking devices: 1) Transmission locking devices using a zinc alloy wheel and connecting rod: The transmission of the zinc alloy wheel and connecting rod is similar to a rack and pinion drive. Its advantages are stable transmission and applicability to different center distances and rear center distances. The disadvantages are the high price of zinc alloy and the high cost of zinc alloy molds, as well as the difficulty in guaranteeing the strength of the zinc alloy wheel. 2) Transmission locking devices using a stainless steel wheel, a lever, and a connecting rod: This structure is similar to a cam mechanism. The wheel's rotation drives the lever. Its advantages are applicability to different center distances and rear center distances. The disadvantages are the numerous components, complex installation, and inability to use small center distances. If used for small center distances, the shaft connecting the wheel and lever must extend into the connecting rod, compromising strength. Utility Model Content

[0003] In order to solve at least some of the above-mentioned technical problems, this utility model provides a transmission locking mechanism and a door / window.

[0004] The first aspect of this utility model provides a transmission locking mechanism, including a housing, a transmission wheel, a transmission housing connecting rod, and a reinforcing structure. The housing is used to be fitted into the mounting groove of a door or window. The transmission wheel is rotatably connected to the housing, and the outer circumference of the transmission wheel is provided with a plurality of transmission teeth. The transmission housing connecting rod is used to connect to the transmission bar inside the door or window, and the transmission housing connecting rod is slidably connected to the housing, and it is provided with a plurality of transmission holes in the sliding direction. The transmission teeth are used to insert into the corresponding transmission holes when the transmission wheel rotates and drive the transmission bar to slide. The reinforcing structure is provided on both sides of the transmission wheel.

[0005] Optionally, the reinforcement structure includes a first reinforcement plate and a second reinforcement plate, the first reinforcement plate and the second reinforcement plate surround to form a reinforcement cavity, the transmission wheel is disposed in the reinforcement cavity, the transmission housing connecting rod slides outside the reinforcement cavity, and the transmission teeth extend out of the reinforcement cavity and are inserted into the transmission hole.

[0006] Optionally, the first reinforcing plate is provided with an arc-shaped rotation limiting groove, and the transmission wheel is provided with a limiting protrusion. The limiting protrusion is used to insert into the rotation limiting groove to limit the rotation trajectory of the transmission wheel.

[0007] Optionally, both the first reinforcing plate and the second reinforcing plate are provided with support protrusions, which are used to extend into the reinforcing cavity and contact the transmission wheel to support and position the transmission wheel.

[0008] Optionally, the box body covers the outside of the reinforcing structure, and one end face of the box body and one end face of the reinforcing structure are joined together to form a sliding track for the transmission housing connecting rod to slide.

[0009] Optionally, the transmission housing connecting rod includes a connecting part and a sliding part. The connecting part is located at both ends of the sliding part. The width of the sliding part is narrower than the width of the connecting part. One end face of the housing is provided with sliding limiting parts that abut against both sides of the sliding part.

[0010] Optionally, the transmission locking mechanism further includes a transmission housing panel, one end face of the box body is respectively inserted into the slide groove of the transmission housing panel, and the transmission housing connecting rod slides between the transmission housing panel and the box body.

[0011] Optionally, the transmission locking mechanism further includes a connecting rod plastic component, which connects the two ends of the transmission housing connecting rod and slides within a groove in the transmission housing panel.

[0012] Optionally, the connecting rod plastic part is provided with an oil reservoir, which is opened towards the transmission housing panel and is used to store lubricating oil.

[0013] The second aspect of this utility model provides a door or window, including a locking hardware structure, wherein the locking hardware structure locks the door or window through the aforementioned transmission locking mechanism.

[0014] The beneficial effects of this plan are:

[0015] This design utilizes a transmission locking mechanism where stainless steel is laser-cut into transmission tooth shapes, and a connecting rod is stamped with square transmission holes. This enables the transmission between the transmission wheel and the transmission housing connecting rod, thus facilitating the transmission of the transmission bar and opening / closing doors and windows. The reinforced structure provides stable support for the transmission wheel during rotation. This design features a simple transmission wheel and transmission housing connecting rod structure, is easy to form, has low cost, requires fewer parts, and simultaneously meets strength and price requirements, making it suitable for widespread application in actual production operations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the transmission locking mechanism;

[0017] Figure 2 This is an exploded structural diagram of the transmission locking mechanism;

[0018] Figure 3 A schematic diagram of the transmission locking mechanism to conceal the transmission housing panel;

[0019] Figure 4 An exploded view of the transmission locking mechanism to conceal the transmission housing panel;

[0020] Figure 5 This is a schematic diagram of the connection structure between the first fixed plate, the second fixed plate, and the transmission wheel.

[0021] Explanation of reference numerals in the attached figures:

[0022] 10. Transmission wheel; 11. Transmission gear; 12. Limiting protrusion; 20. Transmission housing connecting rod; 201. Transmission hole; 21. Connecting part; 22. Sliding part; 30. Reinforcing structure; 31. First reinforcing plate; 311. Rotation limiting groove; 32. Second reinforcing plate; 301. Support protrusion; 40. Transmission housing panel; 50. Connecting rod plastic part; 51. Oil reservoir; 60. Anti-pull slant block; 70. Box body. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise expressly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within two components. For those skilled in the art, the specific meaning of the terms in this utility model can be understood according to the specific circumstances.

[0025] This embodiment discloses a door and window, including a locking hardware structure. The locking hardware structure locks the door and window through a transmission locking mechanism. It has a simple structure and is easy to operate.

[0026] Specifically, the transmission locking mechanism includes a housing 70, a transmission wheel 10, a transmission housing connecting rod 20, and a reinforcing structure 30. The housing 70 is used to be fitted into the mounting groove of the door or window. The transmission wheel 10 is rotatably connected to the housing 70, and the outer circumference of the transmission wheel 10 is provided with several transmission teeth 11. The transmission housing connecting rod 20 is used to connect the transmission bar inside the door or window. The transmission housing connecting rod 20 is slidably connected to the housing 70, and it is provided with several transmission holes 201 in the sliding direction. The transmission teeth 11 are used to insert into the corresponding transmission holes 201 when the transmission wheel 10 rotates and drive the transmission bar to slide. The reinforcing structure is provided on both sides of the transmission wheel 10.

[0027] The transmission locking mechanism of this solution uses laser cutting to create the shape of transmission teeth 11 from stainless steel material, and stamping a square transmission hole 201 into the connecting rod. This achieves the transmission engagement between the transmission wheel 10 and the transmission housing connecting rod 20, thereby realizing the transmission of the transmission bar and opening and closing doors and windows. The reinforcement structure 30 provides stable support for the transmission wheel during rotation. The transmission wheel 10 and transmission housing connecting rod 20 of this solution have a simple structure, are easy to form, have low cost, and require fewer parts. It can simultaneously meet the requirements of strength and price, making it suitable for widespread application in actual production operations.

[0028] In this embodiment, the reinforcing structure 30 includes a first reinforcing plate 31 and a second reinforcing plate 32. The first reinforcing plate 31 and the second reinforcing plate 32 surround a reinforcing cavity. The transmission wheel 10 is disposed within the reinforcing cavity, and the transmission housing connecting rod 20 slides outside the reinforcing cavity. The transmission teeth 11 extend out of the reinforcing cavity and are inserted into the transmission hole 201. It should be noted that the first reinforcing plate 31 is the wide reinforcing plate, and the second reinforcing plate 32 is the narrow reinforcing plate. The wide and narrow reinforcing plates mainly support the transmission wheel 10. The wide and narrow reinforcing plates can be connected and fixed by connecting columns, or they can be connected by bending the sheet metal on the wide and narrow reinforcing plates and then welding them together.

[0029] In this embodiment, the first reinforcing plate 31 is provided with an arc-shaped rotation limiting groove 311, and the transmission wheel 10 is provided with a limiting protrusion 12. The limiting protrusion 12 is used to insert into the rotation limiting groove 311 to limit the rotation trajectory of the transmission wheel 10. Generally, the transmission wheel 10 is provided with a square operating hole for the operating handle to pass through and control the rotation of the transmission wheel 10. When the operating handle rotates, the limiting protrusion 12 rotates within the rotation limiting groove 311, thereby limiting the rotation trajectory of the transmission wheel 10 and improving the control stability of the operating handle.

[0030] In this embodiment, both the first reinforcing plate 31 and the second reinforcing plate 32 are provided with supporting protrusions 301. The supporting protrusions 301 are used to extend into the reinforcing cavity and contact the transmission wheel 10 to support and position the transmission wheel 10. It can be understood that the outer periphery of the transmission wheel 10 includes a transmission area with transmission teeth 11 and an arc-shaped area without transmission teeth 11. The supporting protrusions 301 penetrate the reinforcing cavity and contact the arc-shaped area through the arc-shaped surface, which does not affect the normal rotation of the transmission wheel 10, while supporting and limiting the transmission wheel 10.

[0031] In this embodiment, the housing 70 covers the first reinforcing plate 31 and the second reinforcing plate 32. One end face of the outer housing 33, one end face of the first reinforcing plate 31, and one end face of the second reinforcing plate 32 are joined together to form a sliding track for the transmission housing connecting rod 20. The outer housing 33 is used to insert into the door and window profile, protecting the first reinforcing plate 31 and the second reinforcing plate 32, and at the same time forming a sliding track for the connecting rod to facilitate its sliding.

[0032] In this embodiment, the transmission housing connecting rod 20 includes a connecting portion 21 and a sliding portion 22. The connecting portion 21 is located at both ends of the sliding portion 22. The width of the sliding portion 22 is narrower than the width of the connecting portion 21. One end face of the housing 70 is provided with sliding limiting portions that abut against both sides of the sliding portion 22. It can be understood that one end face of the first reinforcing plate 31 and one end face of the second reinforcing plate 32 are respectively provided with sliding limiting portions to clamp and limit the sliding portion 22. The length of the sliding portion 22 is longer than the length of the sliding limiting portion, thereby enabling the transmission housing connecting rod 20 to slide effectively within the range of the sliding portion 22.

[0033] In this embodiment, the transmission locking mechanism further includes a transmission housing panel 40. One end face of the housing 70 is inserted into a groove in the transmission housing panel 40, and the transmission housing connecting rod 20 slides between the transmission housing panel 40 and the housing 70. The transmission housing panel 40 covers the transmission housing connecting rod 20, the first reinforcing plate 31, the second reinforcing plate 32, and the outer housing 33, concealing the transmission housing and providing a channel for the transmission housing connecting rod 20 to connect with the external transmission bar. The transmission housing panel 40 is made of aluminum alloy, which can be treated with different surfaces, has high forming precision, and is aesthetically pleasing.

[0034] In this embodiment, the transmission locking mechanism further includes a connecting rod plastic component 50. The connecting rod plastic component 50 connects to the two end connecting portions 21 of the transmission housing connecting rod 20, and slides within the groove of the transmission housing panel 40. There is a certain gap between the transmission housing connecting rod 20 and the transmission housing panel 40. By placing the connecting rod plastic component 50 between the transmission housing connecting rod 20 and the transmission housing panel 40, a stable installation and connection of the transmission housing connecting rod 20 can be achieved.

[0035] In this embodiment, the connecting rod plastic part 50 is provided with an oil reservoir 51, which faces the transmission housing panel 40 and is used to store lubricating oil. It is understood that the lubricating oil can be used for lubrication of the transmission connection between the transmission housing connecting rod 20 and the transmission wheel 10, as well as for lubrication during the sliding process of the transmission housing connecting rod 20. The connecting rod plastic part 50, which mates with the transmission housing connecting rod 20, has six oil reservoirs 51 below it. Lubricating grease can be pre-filled during installation to provide lubrication during transmission, improving the ease of operation and service life of the transmission locking mechanism in this solution.

[0036] The transmission locking mechanism of this solution also includes an anti-pull block 60 that passes through the housing 70. The anti-pull block 60 is used to connect the external operating handle. The anti-pull block 60 has different styles for different operating handle structures.

[0037] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A transmission locking mechanism, characterized in that, include: The box body is used to be fitted into the mounting groove of doors and windows; A transmission wheel is rotatably connected to the housing, and the outer circumference of the transmission wheel is provided with a plurality of transmission teeth. A transmission housing connecting rod is used to connect the transmission bar inside the door or window. The transmission housing connecting rod is slidably connected to the housing and has several transmission holes in the sliding direction. The transmission teeth are used to insert into the corresponding transmission holes when the transmission wheel rotates and drive the transmission bar to slide. A reinforcing structure is provided on both sides of the drive wheel.

2. The transmission locking mechanism according to claim 1, characterized in that, The reinforcement structure includes a first reinforcement plate and a second reinforcement plate. The first reinforcement plate and the second reinforcement plate surround to form a reinforcement cavity. The transmission wheel is disposed in the reinforcement cavity. The transmission housing connecting rod slides outside the reinforcement cavity, and the transmission teeth extend out of the reinforcement cavity and are inserted into the transmission hole.

3. The transmission locking mechanism according to claim 2, characterized in that, The first reinforcing plate is provided with an arc-shaped rotation limiting groove, and the transmission wheel is provided with a limiting protrusion. The limiting protrusion is used to insert into the rotation limiting groove to limit the rotation trajectory of the transmission wheel.

4. The transmission locking mechanism according to claim 2, characterized in that, Both the first and second reinforcing plates are provided with support protrusions, which are used to extend into the reinforcing cavity and contact the transmission wheel to support and position the transmission wheel.

5. The transmission locking mechanism according to claim 1, characterized in that, The box body covers the outside of the reinforcing structure, and one end face of the box body and one end face of the reinforcing structure are joined together to form a sliding track for the transmission housing connecting rod to slide.

6. The transmission locking mechanism according to claim 1, characterized in that, The transmission housing connecting rod includes a connecting part and a sliding part. The connecting part is located at both ends of the sliding part. The width of the sliding part is narrower than the width of the connecting part. One end face of the housing is provided with sliding limiting parts that abut against both sides of the sliding part.

7. The transmission locking mechanism according to claim 1, characterized in that, The transmission locking mechanism also includes a transmission housing panel, one end face of the box body is respectively inserted into the slide groove of the transmission housing panel, and the transmission housing connecting rod slides between the transmission housing panel and the box body.

8. A transmission locking mechanism according to claim 7, characterized in that, The transmission locking mechanism also includes a connecting rod plastic component, which connects the two ends of the transmission housing connecting rod and slides within the groove of the transmission housing panel.

9. A transmission locking mechanism according to claim 7, characterized in that, The connecting rod plastic part is provided with an oil reservoir, which is opened towards the transmission housing panel and is used to store lubricating oil.

10. A door or window, characterized in that, The doors and windows include locking hardware structures, which lock the doors and windows through a transmission locking mechanism as described in any one of claims 1-9.

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