Angle turning device for door and window transmission
By using a chain instead of a spring structure, and by utilizing the rigidity and hinge design of the chain, the problems of high transmission resistance and easy damage of the corner gear are solved, achieving a transmission effect with low resistance and durability.
Patent Information
- Application Number
- CN202423236352.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing corner gears have high resistance and are prone to damage during transmission, mainly due to the frictional stress generated when the spring slides in the groove.
The chain consists of three hinged segments, replacing the traditional spring structure. It utilizes the rigidity of the chain and the hinge structure to achieve transmission between moving parts, avoiding friction damage.
It reduces transmission resistance, prevents the corner unit from being damaged by friction, and improves the flexibility and durability of the transmission.
Smart Images

Figure CN223661623U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of door and window accessories, and particularly relates to a corner connector for door and window transmission. Background Art
[0002] The corner connector is one of the common hardware accessories for doors and windows. It is usually installed at the corner of the window sash and used to connect and link other hardware on two sides of the window sash. Referring to the utility model patent with the publication (announcement) number: CN219299029U, namely, the corner connector and the door and window, a general corner connector mainly includes a seat body, a reed, and an installation structure for other hardware. The reed is slidably arranged in the chute of the seat body, and both ends of the reed are connected to the installation structure. The reed is bent and arranged in the chute. During movement, the hardware on one side of the window sash pulls the reed through one of its installation structures. The reed slides in the chute and pulls the installation structure on the other side. Stress will be generated during the push-pull transmission process of the reed, resulting in relatively large resistance and damage to the corner connector. Content of the Utility Model
[0003] The utility model aims to provide a corner connector for door and window transmission to achieve the purpose of reducing resistance and preventing damage to the corner connector.
[0004] To achieve the above purpose, the utility model provides the following technical solution: a corner connector for door and window transmission, including a main body installed at the corner of the window sash, and a first movable member and a second movable member arranged at both ends of the main body. The main body has an L-shaped chute, and a chain is arranged in the chute. The chain includes three chain segments arranged in sequence, and the three chain segments are hinged to each other. Both ends of the chain are respectively hinged to the first movable member and the second movable member.
[0005] Further, the chute includes a first sliding segment and a second sliding segment that are perpendicular to each other. The first movable member is located at one end of the first sliding segment and linearly slides on the first sliding segment. The second movable member is inserted into the second sliding segment and linearly slides on the second sliding segment. The chain is arranged in the first sliding segment, and one of the chain segments close to the second movable member extends into the second sliding segment and is hinged to the second movable member.
[0006] Further, the main body is provided with a cover plate for covering the second sliding segment, and an avoidance space is provided at one end of the cover plate close to the first sliding segment.
[0007] Further, through holes are provided at the ends of each chain segment and are hinged by pins.
[0008] Further, the first movable member is provided with a connection end, and the connection end is in the shape of a "king" character. The second movable member is connected with a connecting member, and the connecting member includes a sliding part and a connecting column.
[0009] Compared with the prior art, the beneficial effects of this utility model are: by replacing the existing spring structure with a chain, the chain is composed of three chain segments that are hinged to each other. During the transmission process, adjacent chain segments will swing, causing the chain to bend or straighten. The rigidity of the chain and the hinge structure are used to realize the mutual transmission between the first and second moving parts at both ends of the chain. At the same time, the chain will not rub against the main body during the hinged movement, which can prevent damage to the corner device. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0011] Figure 2 This is a perspective view of the main body of this utility model.
[0012] Figure 3 This is a schematic diagram of the internal structure of this utility model.
[0013] Figure 4 This is an exploded view of the present invention.
[0014] Figure 5 This is a perspective view of the chain in this utility model.
[0015] Figure 6 This is a cross-sectional view of the main body of this utility model.
[0016] In the figure: main body 1, first movable part 2, second movable part 3, chain 4, slide 10, cover plate 11, connecting end 22, connector 30, sliding part 31, connecting post 32, chain segment 41, pin 44, first slide 101, second slide 102, clearance space 110. Detailed Implementation
[0017] 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.
[0018] As shown in the attached diagram, this utility model discloses a corner actuator for door and window transmission, comprising a main body 1 installed at the corner of a window sash, and a first movable part 2 and a second movable part 3 disposed at both ends of the main body 1. The first movable part 2 and the second movable part 3 are connected to other hardware accessories and are ultimately driven by a handle or other driving component. This belongs to the existing door and window opening and closing system structure. The main body 1 has an L-shaped slide groove 10, in which a chain 4 is disposed. The chain 4 includes three chain segments 41 arranged sequentially, which are hinged to each other. The two ends of the chain 4 are respectively hinged to the first movable part 2 and the second movable part 3. All three chain segments 41 are made of rigid material and are located on one side of the slide groove 10, with their ends inclined to the other side of the slide groove 10. There are two hinge nodes between the three chain segments 41, plus the two nodes connecting the ends of the chain 4 to the first movable part 2 / second movable part 3, for a total of four hinge nodes, ensuring normal transmission between the first movable part 2 and the second movable part 3, while achieving greater flexibility. (Reference) Figure 1 During transmission, if the second movable member 3 is pulled, the second movable member 3 pulls the chain 4. At this time, the chain 4 located in the first sliding section 101 gradually bends and moves towards the second movable member 3, thereby pulling the first movable member 2 downward. The chain segment 41 located at the bottom will enter the second sliding section 102, and the chain segment 41 located in the middle will be tilted at the clearance space 110. When the second movable member 3 is pushed, the movement trajectory of the chain 4 is as follows: the node between the chain segment 41 at the top and the chain segment 41 in the middle will abut against the bottom of the groove 10 and move along the first sliding section 101 of the groove 10 towards the first movable member 2. The middle chain segment 41 gradually enters the first sliding section 101 until the node between the middle chain segment 41 and the chain segment 41 near the second movable member 3 abuts against the bottom of the groove 10 and continues to move towards the first movable member 2.
[0019] This utility model discloses a corner mechanism for door and window transmission. It replaces the existing spring structure with a chain 4. The chain 4 is composed of three chain segments 41 that are hinged to each other. During the transmission process, adjacent chain segments 41 will swing, causing the chain 4 to bend or straighten. The rigidity of the chain 4 and the hinge structure are used to realize the mutual transmission between the first movable part 2 and the second movable part 3 at both ends of the chain 4. At the same time, the chain 4 will not rub against the main body 1 during the hinge movement, which can prevent damage to the corner mechanism.
[0020] In this embodiment, the chute 10 includes a first sliding section 101 and a second sliding section 102 that are perpendicular to each other. The first movable member 2 is located at one end of the first sliding section 101 and linearly slides on the first sliding section 101. The second movable member 3 is inserted into the second sliding section 102 and linearly slides on the second sliding section 102. The chain 4 is disposed within the first sliding section 101, and a chain segment 41 near the second movable member 3 extends into the second sliding section 102 and is hinged to the second movable member 3. On this basis, the main body 1 is provided with a cover plate 11 for shielding the second sliding section 102. The cover plate 11 is provided with an avoidance space 110 at one end close to the first sliding section 101. Since the chain 4 is composed of three chain segments 41 made of rigid materials, when the chain 4 bends or straightens, some of the chain segments 41 need to pass through the corner of the chute 10, that is, the connection between the first sliding section 101 and the second sliding section 102. Due to the rigid nature of the chain segment 41, it cannot bend itself and requires a certain space when passing through the corner of the chute 10. Therefore, the avoidance space 110 needs to be reserved for the chain segment 41 to pass through.
[0021] In this embodiment, through holes are provided at the ends of each of the chain segments 41, and the chain segments 41 are hinged to each other by inserting pins 44 through the through holes.
[0022] In this embodiment, the first movable member 2 is provided with a connection end 22, and the connection end 22 is in the shape of a "king" character. The second movable member 3 is connected with a connecting member 30, and the connecting member 30 includes a sliding portion 31 and a connecting column 32. Both the connection end 22 and the connecting member 30 are used to connect hardware fittings such as transmission rods and locking points. Specifically, the hardware fittings to be connected are also provided with openings in the shape of a "king" character. In addition, both the first movable member 2 and the second movable member 3 are provided with sliding portions 31 for sliding connection with the chute 10, and the sliding portion 31 on the connecting member 30 is used for sliding connection with the chute on the side of the window sash.
[0023] The above embodiments are the preferred embodiments of the present invention. All structures similar to the present invention and equivalent changes made thereto shall fall within the protection scope of the present invention.
Claims
1. A corner actuator for door and window transmission, comprising a main body installed at the corner of a window sash, and a first movable member and a second movable member disposed at both ends of the main body, characterized in that: The main body has a chute in an L shape, and a chain is arranged in the chute. The chain includes three chain segments arranged in sequence, and the three chain segments are hinged to each other. The two ends of the chain are respectively hinged to a first movable member and a second movable member.
2. A corner actuator for door and window transmission according to claim 1, characterized in that: The chute includes a first sliding segment and a second sliding segment that are perpendicular to each other. The first movable member is located at one end of the first sliding segment and linearly slides in the first sliding segment. The second movable member is inserted into the second sliding segment and linearly slides in the second sliding segment. The chain is arranged in the first sliding segment, and a chain segment close to the second movable member extends into the second sliding segment and is hinged to the second movable member.
3. A corner actuator for door and window transmission according to claim 2, characterized in that: The main body is provided with a cover plate for shielding the second sliding segment, and an avoidance space is provided at one end of the cover plate close to the first sliding segment.
4. A corner actuator for door and window transmission according to claim 1, characterized in that: Through holes are provided at the ends of each chain segment and are hinged by pins.
5. A corner actuator for door and window transmission according to claim 1, characterized in that: The first movable member is provided with a connection end, and the connection end is in the shape of a "king" character. The second movable member is connected with a connecting member, and the connecting member includes a sliding portion and a connecting column.
Citation Information
Patent Citations
Angle turning device and door and window
CN219299029U