Multi-point lock drive for chain window opener

Abstract

The utility model relates to door and window technical field, especially suitable for chain window opener's multipoint lock driver, including box body, the bottom of box body is equipped with with its sliding connection shift fork, is equipped with lock pin on the shift fork, is divided into upper chamber, lower chamber in the box body, is equipped with the first waist shape groove and second waist shape groove who sets up horizontally respectively on the bottom plate of upper chamber and lower chamber, is equipped with the push plate who is connected with chain head in the upper chamber and slides, is equipped with the third waist shape groove who sets up obliquely on the push plate, lock pin passes first waist shape groove, second waist shape groove, third waist shape groove in proper order, is equipped with the limiting block of holding up lock pin when unlocking, the positioning plate of holding up lock pin when locking in the lower chamber, the part of positioning plate located outside box body is connected with window frame, the utility model has the advantages of: replacing handle and window opener linkage, can drive lock point while operating window opener.

Description

Technical Field

[0001] This utility model relates to the field of door and window technology, specifically to a multi-point lock driver suitable for chain window openers. Background Technology

[0002] In existing door and window control systems, chain-type window openers are a common type of drive device, and are mostly suitable for casement windows. A utility model patent with patent authorization announcement number CN215632410U discloses a hand-cranked chain window opener, including a window opening linkage component installed on a casement window, a window opening mechanism installed on the window frame (wall), and a hand-cranking mechanism. The window opening mechanism includes a housing, a chain, and a chain drive mechanism. The chain head is connected to the window opening linkage component. By operating the hand-cranking mechanism, the chain moves in and out of the housing, thereby pushing or pulling the window opening linkage component to open or close the window sash. However, the window sash with this hand-cranked chain window opener lacks a locking structure. In strong winds, the closed window sash can be pulled open, damaging the window opening mechanism. To ensure the reliability of the window sash after it is closed, a multi-point lock needs to be installed. The window opening and closing action is completed by the cooperation of the multi-point lock and the window opener. The locking point drive of the multi-point lock is generally achieved by manual operation of the handle. However, the windows with hand-cranked chain window openers are generally installed at a high position, making it impossible to meet the requirements by installing a handle. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a multi-point lock driver suitable for chain window openers, which replaces the handle and is linked with the window opener, and can drive the locking points while operating the window opener.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a multi-point lock actuator suitable for chain window openers, comprising a housing, a recessed groove at the bottom of the housing, the recessed groove having a locking end and an unlocking end, a fork movably mounted in the housing through the recessed groove, the fork having a locking pin, the housing being divided into an upper chamber and a lower chamber, the bottom plates of the upper chamber and the lower chamber respectively having a first oblong groove and a second oblong groove arranged horizontally, the axes of the first oblong groove and the second oblong groove coinciding, and a push plate slidably connected to the chain head being disposed in the upper chamber. The push plate is provided with a third obliquely shaped groove. After the locking pin is connected to the shift fork, it passes through the first, second, and third oblique grooves. When the push plate reciprocates in and out of the upper cavity as the chain head extends and retracts, the third oblique groove drives the locking pin to reciprocate within the first and second oblique grooves. The locking pin drives the shift fork to reciprocate between the locking and unlocking ends, realizing the locking or unlocking function. The lower cavity is provided with a limiting block that locks the locking pin when unlocking and a positioning plate that locks the locking pin when locking. The portion of the positioning plate outside the box is connected to the window frame. The present invention, possessing the above-mentioned features, achieves the following: by setting a driver instead of a handle and linking it with the window opener, the locking point can be driven while operating the window opener; by setting the third oblique groove obliquely and the first and second oblique grooves laterally, the force of the push plate moving back and forth is converted into the force of the locking pin moving laterally, thereby driving the fork to move between the locking end and the unlocking end to realize the locking and unlocking functions of the locking point; by setting a limiting block and a positioning plate in the lower cavity, the locking pin is limited in the unlocked state and the locked state respectively, ensuring that the locking pin will not shift, and improving the accuracy and stability of the driver.

[0005] A further feature of this invention is that: a guide block is provided in the lower cavity, the guide block is located on the side of the second waist-shaped groove, the limiting block is provided with a guide groove adapted to the guide block, and at least one spring for pushing the limiting block is provided on the other side of the limiting block opposite to the guide groove. One end of the spring extending out of the limiting block abuts against the wall of the lower cavity. When locked, the positioning plate abuts against the limiting block. When unlocked, the limiting block disengages from the positioning plate and engages with the locking pin.

[0006] The present utility model with the above features is as follows: Since the positioning plate is connected to the window frame, as the window sash is opened, the positioning plate leaves the box and no longer abuts against the limiting block. By setting a spring, the limiting block is pushed to move until it engages with the locking pin, so as to lock the locking pin when unlocking; the limiting block is guided and limited by setting a guide block.

[0007] A further feature of this invention is that the positioning plate is bent into an L-shape, including a connecting part connected to the window frame and a locking hook part placed in the lower cavity. The locking hook part is provided with an L-shaped locking hook groove, and the locking pin moves in and out of the L-shaped locking hook groove as the window sash is opened and closed.

[0008] The present invention having the above features: in the locked state, the locking pin passes through the first waist-shaped groove, the second waist-shaped groove, the third waist-shaped groove and the L-shaped locking hook groove, and in this state, the positioning plate abuts against the limiting block to achieve the positioning of the locking pin; the L-shaped locking hook groove is provided on the positioning plate to facilitate the locking pin to disengage from the positioning plate.

[0009] A further feature of this invention is that the limiting block includes a limiting block body, and a first wing plate and a second wing plate located on the same side of the side of the limiting block body facing the upper chamber. The first wing plate and the second wing plate are respectively located on both sides of the guide groove, and a locking groove for a locking pin is formed between the first wing plate and the second wing plate. The first wing plate and the second wing plate respectively form a space with the bottom plate of the lower chamber to accommodate the positioning plate.

[0010] The present invention, which has the above-mentioned features, uses a first wing plate and a second wing plate to engage and limit the locking pin. The engagement structure is simple. The first wing plate and the second wing plate are set on the upper side of the limiting block body. When the limiting block moves toward the locking pin, the friction with the bottom of the lower chamber is reduced, and the smoothness of the driver's operation is improved.

[0011] A further feature of this invention is that the box body comprises, from bottom to top, a base, a middle seat, and an end cover, which are detachably connected. The base includes a first mounting plate fixedly connected to the window sash and a first U-shaped surrounding plate disposed on the first mounting plate. The first U-shaped surrounding plate and the end face of the first mounting plate form a lower chamber. The middle seat includes a second mounting plate placed at the end of the first U-shaped surrounding plate and a second U-shaped surrounding plate disposed on the second mounting plate. The second U-shaped surrounding plate and the end face of the second mounting plate form an upper chamber. The end cover is disposed on the middle seat.

[0012] The present invention, which has the above-mentioned features, achieves the division of the upper and lower chambers inside the box by setting a base, a middle seat and an end cover. Such a split setting facilitates the assembly of parts.

[0013] A further feature of this invention is that the fork is L-shaped and includes a sliding part located at the bottom of the housing and a fork part located outside the housing. The fork part is vertically disposed on one side of the sliding part, and this side is parallel to the direction of movement of the fork. The sliding part has two lugs on the other side opposite to where the fork part is disposed, and the lugs are disposed at both ends of the side. The bottom of the housing has a groove for accommodating the sliding part, and the inner wall of the groove has a protrusion placed between the two lugs. The groove is covered with a bottom cover, and a clearance groove is provided on the bottom cover for the fork part to pass through.

[0014] The present invention, which has the above-mentioned features, has a shift fork that is linked to a locking pin, and a lug provided on the shift fork and a protrusion in the slide groove further limit the shift fork and restrict the sliding stroke of the shift fork.

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 1 .

[0017] Figure 2 This is an exploded view of an embodiment of the present utility model.

[0018] Figure 3 This is a schematic diagram of the structure of this utility model without the bottom cover.

[0019] Figure 4 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 2 .

[0020] Figure 5 This is a schematic diagram of the structure of the limiting block in an embodiment of the present utility model.

[0021] Figure 6This is a schematic diagram of the upper chamber in the locked state according to an embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the lower chamber in the locked state according to an embodiment of the present invention.

[0023] Figure 8 This is a schematic diagram of the upper chamber structure in the unlocked state according to an embodiment of the present invention.

[0024] Figure 9 This is a schematic diagram of the lower chamber in the unlocked state according to an embodiment of the present invention. Detailed Implementation

[0025] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0026] like Figure 1-9 The multi-point lock actuator shown is suitable for chain window openers. It includes a housing 2 with a recessed groove 261 at the bottom. The recessed groove 261 has a locking end and an unlocking end. A fork 3 is movably mounted inside the housing 2 via the recessed groove 261. The fork 3 has a locking pin 1. The housing 2 is divided into an upper chamber 21 and a lower chamber 22. The bottom plates of the upper chamber 21 and the lower chamber 22 are respectively provided with a first oblong groove 211 and a second oblong groove 221 arranged laterally. A push plate 4, which is slidably connected to the chain head (i.e., the casement window linkage in document CN215632410U), is slidably mounted inside the upper chamber 21. The push plate 4 has an obliquely arranged... The third waist-shaped groove 41, the locking pin 1 passes through the first waist-shaped groove 211, the second waist-shaped groove 221 and the third waist-shaped groove 41 in sequence. When the push plate 4 moves back and forth in the upper chamber 21 with the extension and retraction of the chain head, the third waist-shaped groove 41 drives the locking pin 1 to move back and forth in the first waist-shaped groove 211 and the second waist-shaped groove 221. The locking pin 1 drives the shift fork 3 to move back and forth between the locking end and the unlocking end, so as to realize the locking or unlocking function of the locking point. The lower chamber 22 is provided with a limiting block 5 that locks the locking pin 1 when unlocking and a positioning plate 6 that locks the locking pin 1 when locking. The part of the positioning plate 6 located outside the box 2 is connected to the window frame.

[0027] A guide block 222 is provided inside the lower chamber 22. The guide block 222 is located on the side of the second waist-shaped groove 221. The limiting block 5 is provided with a guide groove 51 that matches the guide block 222. On the other side of the limiting block 5 opposite to the guide groove 51, there is at least one spring 7 that pushes the limiting block 5. One end of the spring 7 extending out of the limiting block 5 abuts against the chamber wall of the lower chamber 22. When locked, the positioning plate 6 abuts against the limiting block 5. When unlocked, the limiting block 5 disengages from the positioning plate 6 and... The locking pin 1 is engaged, and the limiting block 5 includes a limiting block body 52. ​​On the side of the limiting block body 52 facing the upper chamber 21, there are a first wing plate 53 and a second wing plate 54 located on the same side. The first wing plate 53 and the second wing plate 54 are respectively located on both sides of the guide groove 51. A slot 55 for engaging the locking pin 1 is formed between the first wing plate 53 and the second wing plate 54. The first wing plate 53 and the second wing plate 54 respectively form a space with the bottom plate of the lower chamber 22 to accommodate the positioning plate 6.

[0028] The positioning plate 6 is bent into an L-shape and includes a connecting part 61 connected to the window frame and a locking hook part 62 placed in the lower cavity 22. The locking hook part 62 is provided with an L-shaped locking hook groove 621, and the locking pin 1 moves in and out of the L-shaped locking hook groove 621 as the window sash is opened and closed.

[0029] The box body 2 includes, from bottom to top, a base 23, a middle seat 24, and an end cap 25, which are detachably connected. The base 23 includes a first mounting plate 231 fixedly connected to the window sash and a first U-shaped enclosure 232 disposed on the first mounting plate 231. The first U-shaped enclosure 232 and the end face of the first mounting plate 231 form a lower chamber 22. The middle seat 24 includes a second mounting plate 241 placed at the end of the first U-shaped enclosure 232 and a second U-shaped enclosure 242 disposed on the second mounting plate 241. The second U-shaped enclosure 242 and the end face of the second mounting plate 241 form an upper chamber 21. The end cap 25 is placed on the middle seat 24.

[0030] The shift fork 3 is L-shaped and includes a sliding part 31 located at the bottom of the housing 2 and a shift fork part 32 located outside the housing 2. The shift fork part 32 is vertically arranged on one side of the sliding part 31, which is parallel to the moving direction of the shift fork 3. The sliding part 31 has two lugs 311 on the other side of the shift fork part 32. The lugs 311 are located at both ends of the side. The bottom of the base 23 has a groove 233 for accommodating the sliding part 31. The inner wall of the groove 233 has a protrusion 2331 located between the two lugs 311. The groove 233 is covered with a bottom cover 26, and the bottom cover 26 has a clearance groove 261 for the shift fork part 32 to pass through.

[0031] During installation, the connecting part 61 of the positioning plate 6 is connected to the window frame, the locking hook part 62 is placed in the lower chamber 22, the box body 2 is installed on the window sash, and the chain head of the chain window opener is connected to the push plate 4.

[0032] like Figure 6 , 7As shown, in the locked state of the window sash, the position of the locking pin 1 within the third oblong groove 41 is defined as the high position, and the position of the locking pin 1 within the first oblong groove 211 and the second oblong groove is defined as the right position. At this time, the push plate 4 is mostly located outside the upper cavity 21, the locking hook 62 abuts against the limiting block 5, and the locking pin 1 is located within the L-shaped locking hook groove 621 of the positioning plate 6; Figure 8 , 9 As shown, when unlocking, the window opener is activated. As the chain extends, the push plate 4 is pushed into the inner side of the upper chamber 21. The locking pin 1, which is placed in the third waist-shaped groove 41, moves along its axis to the lowest position. At this time, the locking pin 1 moves from the right position of the first waist-shaped groove 211 and the second waist-shaped groove 221 to the left position. During the opening of the window sash, the positioning plate 6 remains in place with the window frame, that is, the positioning plate 6 disengages from the limiting block 5. The locking pin 1 leaves the L-shaped lock hook groove 621. Under the elastic force of the spring 7, the limiting block 5 moves along the guide block 222 toward the locking pin 1 until it engages with the locking pin 1.

[0033] The lever fork 3 is linked with the locking pin 1. A locking bar that is linked with the lever fork 3 is installed inside the window sash, and the locking point is set on the locking bar, so that the multi-point lock driver can replace the handle.

Claims

1. A multi-point lock actuator suitable for chain window openers, comprising a housing and a fork, wherein the bottom of the housing has a clearance groove, the clearance groove having a locking end and an unlocking end, the fork being movably mounted in the housing through the clearance groove, and the fork having a locking pin, characterized in that: The box is divided into an upper chamber and a lower chamber. The bottom plates of the upper and lower chambers are respectively provided with a first waist-shaped groove and a second waist-shaped groove arranged horizontally. The axes of the first waist-shaped groove and the second waist-shaped groove coincide. A push plate connected to the chain head is slidably installed in the upper chamber. The push plate is provided with a third waist-shaped groove arranged obliquely. After the locking pin is connected to the shift fork, it passes through the first waist-shaped groove, the second waist-shaped groove and the third waist-shaped groove. When the push plate moves back and forth in the upper chamber with the extension and retraction of the chain head, the third waist-shaped groove drives the locking pin to move back and forth in the first waist-shaped groove and the second waist-shaped groove. The locking pin drives the shift fork to move back and forth between the locking end and the unlocking end, realizing the locking or unlocking function. The lower chamber is provided with a limit block that locks the locking pin when unlocking and a positioning plate that locks the locking pin when locking. The part of the positioning plate outside the box is connected to the window frame.

2. Multi-point lock drive suitable for chain window opener according to claim 1, characterized in that: The lower chamber is provided with a guide block located on the side of the second waist-shaped groove. The limiting block is provided with a guide groove that matches the guide block. On the other side of the limiting block opposite to the guide groove, there is at least one spring that pushes the limiting block. One end of the spring extending out of the limiting block abuts against the chamber wall of the lower chamber. When locked, the positioning plate abuts against the limiting block. When unlocked, the limiting block disengages from the positioning plate and engages with the locking pin.

3. Multi-point lock drive suitable for chain window opener according to claim 1 or 2, characterized in that: The positioning plate is bent into an L-shape and includes a connecting part that connects to the window frame and a locking hook part placed in the lower cavity. The locking hook part is provided with an L-shaped locking hook groove, and the locking pin moves in and out of the L-shaped locking hook groove as the window sash is opened and closed.

4. The multipoint lock drive suitable for use with a chain window operator according to claim 2, characterized in that: The limiting block includes a limiting block body. On the side of the limiting block body facing the upper chamber, there are a first wing plate and a second wing plate located on the same side. The first wing plate and the second wing plate are respectively located on both sides of the guide groove. A locking groove for locking pin is formed between the first wing plate and the second wing plate. The first wing plate and the second wing plate respectively form a space with the bottom plate of the lower chamber to accommodate the positioning plate.

5. The multipoint lock drive suitable for use with a chain window operator according to claim 1, characterized in that: The box body comprises, from bottom to top, a base, a middle seat, and an end cover, which are detachably connected. The base includes a first mounting plate fixedly connected to the window sash and a first U-shaped enclosure plate disposed on the first mounting plate. The first U-shaped enclosure plate and the end face of the first mounting plate form a lower chamber. The middle seat includes a second mounting plate placed at the end of the first U-shaped enclosure plate and a second U-shaped enclosure plate disposed on the second mounting plate. The second U-shaped enclosure plate and the end face of the second mounting plate form an upper chamber. The end cover is disposed on the middle seat.

6. The multipoint lock drive suitable for use with a chain window operator according to claim 1, characterized in that: The shift fork is L-shaped and includes a sliding part located at the bottom of the housing and a shift fork part located outside the housing. The shift fork part is vertically disposed on one side of the sliding part, and this side is parallel to the moving direction of the shift fork. The sliding part has two lugs on the other side of the side where the shift fork part is disposed, and the lugs are disposed at both ends of the side. The bottom of the housing has a groove for accommodating the sliding part. The inner wall of the groove has a protrusion placed between the two lugs. The groove is covered with a bottom cover, and a clearance groove is disposed on the bottom cover for the shift fork part to pass through.

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