Integrated multipoint lock

Abstract

The application relates to the technical field of doors and windows, in particular to an integrated multi-point lock which comprises a fixed plate arranged on a window sash, the fixed plate is provided with a sliding element along the length direction, the middle part of the sliding element is provided with a central lock, the central lock can drive the sliding element to slide along the fixed plate; the two sides of the central lock are provided with lock pins elastically connected to the surface of the sliding element; the fixed plate is connected to a wall, the surface of the fixed plate is provided with a locking plate opposite to the lock pins; the two sides of the locking plate are provided with anti-disengagement plates, the anti-disengagement plates are higher than the surface of the locking plate, when the window sash is closed, the lock pins slide to the two anti-disengagement plate assemblies and are locked, the window is prevented from being tightly sealed under the action of pressure difference, and the effect of improving the outdoor fire isolation effect is achieved.

Description

Technical Field

[0001] This application relates to the field of door and window technology, and in particular to an integrated multi-point lock. Background Technology

[0002] Currently, fire-resistant windows are defined as windows that, along with their frames, can meet the requirements for fire resistance stability and fire resistance integrity for a certain period of time. Existing fire-resistant windows are usually used in conjunction with fire-resistant wind braces, which can close the window sash relative to the door frame in the event of a fire outside, thereby isolating the fire.

[0003] Existing fireproof windows are generally equipped with multi-point locking systems, which typically include a central lock and one or more remote locks. The remote locks are operated by the central lock, and are connected to the central lock via sliding elements. This common type is well-known.

[0004] Specifically, a fixed plate is typically attached to the side wall of a window sash. A sliding element can slide back and forth along the length of the fixed plate. A central lock is installed in the middle of the fixed plate and is connected to the sliding element. The remaining multi-point locks are distributed on the side wall of the fixed plate and are connected to the sliding element. Each locking point on the side wall of the window frame is equipped with a latch. By moving the central lock, the sliding element can be moved along the fixed plate. The sliding element can then move several multi-point locks simultaneously. When the locking point and the latch are engaged, the window sash cannot be opened relative to the window frame, and vice versa.

[0005] The existing technical solutions mentioned above have the following drawbacks: When a fire occurs outside, the high temperature causes the air to expand, and the outdoor pressure will be lower than the indoor pressure. Although the fireproof wind brace closes the window sash and the window frame, the window sash will not seal properly under the pressure, resulting in the window sash not being able to close completely. This makes the isolation effect against outdoor fires poor. Summary of the Invention

[0006] This application provides an integrated multi-point lock to prevent the window sash from failing to seal properly under pressure when the fireproof window is closed in the event of a fire, thereby improving the isolation effect against outdoor fires.

[0007] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0008] The system includes a fixed plate mounted on the window sash, with a sliding element along its length. A central lock is located in the middle of the sliding element, which can drive the sliding element to slide along the fixed plate. Locking pins are elastically connected to the surface of the sliding element on both sides of the central lock. The system also includes a positioning plate mounted on the side wall of the window frame, with a locking plate on the surface of the positioning plate corresponding to the locking pin. Anti-detachment plates are located on both sides of the locking plate, with the anti-detachment plates being higher than the surface of the locking plate. When the window sash is closed, the locking pin slides to the two anti-detachment plate assemblies and is locked.

[0009] By adopting the above solution, when a fire occurs outside, the fireproof wind brace will drive the window sash to close. During the closing process, when the window sash closes, the locking pin will first abut against the anti-detachment plate. As the fireproof wind brace continues to drive the window sash to close, the locking pin will pass over the first anti-detachment plate to correspond with the locking plate. Then the locking pin will spring out between the two anti-detachment plates. Compared with the prior art, where the fireproof wind brace only drives the window sash to close, in this application, after the fireproof wind brace drives the window sash to close, the locking pin will be engaged between the anti-detachment plates on both sides of the locking plate. That is, the relative locking state of the window sash and the window frame is limited, which achieves the purpose of preventing the window from not sealing properly under the action of pressure difference and improving the isolation effect against outdoor fire.

[0010] Furthermore, the sliding element has a receiving shell at the end opposite to the locking pin, and a connecting groove is opened on the surface of the sliding element corresponding to the receiving shell. The locking pin is set in the receiving shell, and an elastic element is provided inside the receiving shell. One end of the elastic element is fixedly connected to the bottom wall of the receiving shell, and the other end is fixedly connected to the locking pin. The locking pin can reciprocate along the depth direction of the receiving shell under the action of the elastic element. The locking pin can protrude through the receiving shell and the connecting groove to cooperate with the locking plate. The side wall of the fixed plate has a groove for the receiving shell to move synchronously when the sliding element moves.

[0011] Furthermore, a sliding plate is provided on the surface of the positioning plate corresponding to the locking pin, and the sliding plate can move along the positioning plate under the action of external force; one end of the locking plate is fixedly connected to the sliding plate, and the end of the locking plate connected to the sliding plate is through-hole; a backstop plate is fixedly connected to the side of the locking plate opposite to the side connected to the sliding plate; when the central lock is operated to lock the remote lock and its corresponding latch, the central lock drives the locking pin to move along the surface of the backstop plate through the sliding element, so that the locking pin is locked on the side wall of the backstop plate opposite to the locking plate; a spring-loaded component is provided on the side of the positioning plate opposite to the sliding plate, and the spring-loaded component is provided to return the pin to the side of the positioning plate opposite to the sliding plate. The spring mechanism controls the displacement of the slide plate along the positioning plate. Without external force, the spring mechanism pulls the slide plate to make the locking plate and the locking pin face each other. Under the action of the spring mechanism, as the locking pin moves away from the locking plate along the anti-reverse plate, the relative position of the locking plate and the positioning plate does not change. When the central lock is operated to separate the remote lock from its corresponding latch, the locking pin will press down on the anti-reverse plate. The anti-reverse plate will be pushed by the locking pin and move the slide plate along the positioning plate through the locking plate. During this process, the slide plate makes the locking pin and the anti-reverse plate correspond to each other.

[0012] By adopting the above solution, because of the sliding plate, when the window is locked normally, operating the central lock causes the sliding element to move along the fixed plate. The remote lock and locking pin of the sliding element move synchronously until the remote lock engages with the latch. At this time, the locking pin slides along the anti-reverse plate to the back of the anti-reverse plate. The spring-loaded component allows the locking pin to limit the sliding plate when it moves along the anti-reverse plate, preventing the locking pin from moving synchronously with the anti-reverse plate. Then, when unlocking, operating the central lock causes the sliding element to move along the fixed plate. The remote lock and locking pin of the sliding element move synchronously. During this process, the locking pin presses down on the anti-reverse plate, and the anti-reverse plate presses down on the spring-loaded component, allowing the spring-loaded component to store elastic potential energy. Then, when the window is fully opened, the spring-loaded component will push the sliding plate to move under its own elasticity. The sliding plate causes the locking plate to align with the locking pin. This makes it easy for the locking pin and locking plate to engage when the fireproof wind brace closes the window sash in the event of an external fire.

[0013] Furthermore, the rebound assembly includes a first fixing block, a second fixing block, and a rebound member. The first fixing block is fixedly connected to the back of the slide plate, the second fixing block is fixedly connected to the back of the positioning plate, and the two ends of the rebound member are fixedly connected to the first positioning block and the second positioning block, respectively.

[0014] Furthermore, when the window sash is closed, the side of the locking pin that first abuts against the anti-detachment plate is set in an arc shape.

[0015] By adopting the above scheme, the arc-shaped design facilitates the closure of the window sash under the action of the fireproof wind brace in the event of an external fire. During this process, due to the arc-shaped design on one side of the locking pin, the arc-shaped position will first abut against the anti-detachment plate. This design facilitates the retraction of the locking pin into the receiving shell. At this time, the elastic element is compressed. After the locking pin passes the anti-detachment plate, the elastic element will push the locking pin towards the locking plate under its own elasticity, so that the locking pin is located between the anti-detachment plates on both sides. At this time, the non-arc-shaped side of the locking pin abuts against the anti-detachment plate on the side of the window sash facing the opening direction. In this way, the locking pin is not easy to detach through the anti-detachment plate, increasing the locking effect of the anti-detachment plate on the locking pin.

[0016] Furthermore, a through groove is formed on the surface of the skateboard along the direction of relative displacement with respect to the positioning plate. A guide post is fixedly connected to the surface of the positioning plate. When the skateboard moves along the positioning plate, the through groove and the guide post are relatively displaced. The guide post is used to limit the maximum movement of the skateboard.

[0017] Furthermore, a limiting plate is fixedly connected to one end of the guide post away from the positioning plate, and the lower surface of the limiting plate abuts against the upper surface of the sliding plate.

[0018] By adopting the above scheme, the guide post and the limiting plate are used to limit the movement of the skateboard along the positioning plate, firstly to restrict the trajectory of the skateboard, and secondly to prevent the skateboard from coming off the positioning plate.

[0019] Furthermore, the angle between the anti-reverse plate and the locking mechanism is an obtuse angle.

[0020] By adopting the above scheme, in this application, when the window sash is locked under normal operation, the central lock is activated. The central lock will drive several remote locks and locking pins to move synchronously from the end of the anti-reverse plate near the locking plate to the end away from it through the sliding element. Therefore, the angle between the anti-reverse plate and the locking plate is an obtuse angle, which facilitates the movement of the locking pin along the surface of the anti-reverse plate during the window locking process. When the remote locks are locked with the corresponding latches, the locking pin is exactly on the side of the anti-reverse plate away from the locking plate. Moreover, the end of the anti-reverse plate away from the locking plate has an acute angle with the surface of the positioning plate. In this way, the locking pin can be limited in the window locking state to prevent the locking plate from retracting to the surface of the locking plate.

[0021] Furthermore, each latch is mounted on the positioning plate and on the same side as the slide plate, and each latch is integrally formed with the positioning plate.

[0022] By adopting the above solution, compared with the existing technology where each remote lock is individually installed on the window frame, firstly, positioning is convenient, as there is no need to position each lock individually, and the positioning accuracy is high, as the distance between adjacent locks is already positioned on the positioning plate before leaving the factory; secondly, installation is convenient, as it only requires fixing the positioning plate to the window frame.

[0023] Furthermore, the anti-reverse plate and each anti-detachment plate are arranged in an arc shape on the side opposite to the locking plate.

[0024] By adopting the above solution, the arc-shaped design can reduce lock damage caused by friction between the locking pin and the locking mechanism.

[0025] In summary, this application has the following technical effects:

[0026] 1. By setting up this multi-point lock, when a fire occurs outside, the fireproof wind brace will drive the window sash to close. During the closing process of the window sash, because of the housing shell, when the window sash closes, the locking pin will first abut against the anti-detachment plate. At this time, the anti-detachment plate will push the locking pin closer to the housing shell, so that the locking pin retracts into the housing shell. As the fireproof wind brace continues to drive the window sash to close, the locking pin will pass over the anti-detachment plate to correspond with the locking plate. Then, the elastic element will push the locking pin to lock between the two anti-detachment plates under its own elasticity. Compared with the prior art, the fireproof wind brace only drives the window sash to close. In this application, after the fireproof wind brace drives the window sash to close, the locking pin will lock between the anti-detachment plates on both sides of the locking plate. That is, the relative locking state of the window sash and the window frame is limited, which achieves the purpose of avoiding the window from not sealing properly under the action of pressure difference and improving the isolation effect against outdoor fire.

[0027] 2. By setting up a positioning plate, compared with the existing technology where each remote lock has a separate latch installed on the window frame, firstly, positioning is convenient, as there is no need to position each latch individually, and the positioning accuracy is high, as the distance between adjacent latches is already positioned on the positioning plate before leaving the factory; secondly, installation is convenient, as it only requires fixing the positioning plate to the window frame.

[0028] 3. By incorporating a backstop plate, when the window sash is locked under normal operation, the central lock is activated. The central lock, through a sliding element, causes several remote locks and locking pins to move synchronously from the end of the backstop plate closest to the locking plate to the end furthest away. Therefore, the angle between the backstop plate and the locking plate is obtuse, which facilitates the movement of the locking pin along the surface of the backstop plate during the window locking process. When the remote locks are locked with their corresponding latches, the locking pin is exactly on the side of the backstop plate away from the locking plate. Furthermore, the end of the backstop plate away from the locking plate forms an acute angle with the surface of the positioning plate. This limits the locking pin in the locked state, preventing the locking plate from retracting to the surface of the locking plate. Attached Figure Description

[0029] Figure 1 This is a structural schematic diagram of an integrated multi-point lock according to this application;

[0030] Figure 2 This is a structural schematic diagram showing the relationship between the sliding component and the positioning plate in this application;

[0031] Figure 3 This is a structural schematic diagram of the fixing plate of this application;

[0032] Figure 4 This is a schematic diagram of the structure of the housing in this application;

[0033] Figure 5 This is a schematic diagram of the internal structure of the housing in this application;

[0034] Figure 6 This is a schematic diagram of the structure of the springback assembly of this application;

[0035] Figure 7 This is a schematic diagram of the sliding plate structure of this application.

[0036] In the diagram, 1. Fixed plate; 11. Sliding element; 111. Sliding unit; 1112. Raised part; 112. Connecting plate; 12. Receiving shell; 13. Moving groove; 14. Slide groove; 121. Elastic element; 2. Remote lock; 3. Locking pin; 4. Positioning plate; 41. Locking buckle; 411. Locking part; 412. Guide part; 42. Slide plate; 421. Through groove; 43. Locking plate; 431. Anti-detachment plate; 432. Anti-reverse plate; 44. Guide post; 441. Limiting plate; 5. Springback assembly; 51. First fixed block; 52. Second fixed block; 53. Springback element; 6. Central lock. Detailed Implementation

[0037] Reference Figures 1-3 This embodiment provides an integrated multi-point lock, including a fixed plate 1, a sliding element 11, a central lock 6, a remote lock 2, a latch 41, and a positioning plate 4. Specifically, the fixed plate 1 is fixedly connected to the side wall of the window sash, the sliding element 11 is slidably connected to the side of the fixed plate 1 away from the side wall of the window sash, and the sliding element 11 can slide back and forth along the length direction of the fixed plate 1; the central lock 6 is fixedly connected to the middle of the sliding element 11, and a moving groove 13 is provided on the surface of the fixed plate 1 for the central lock 6 to move back and forth, and the side of the central lock 6 away from the sliding element 11 protrudes out of the moving groove 13.

[0038] Reference Figure 2 The specific sliding connection method between the sliding element 11 and the fixed plate 1 is as follows: In this embodiment, the sliding element 11 includes three sliding units 111 and two connecting plates 112. The connected sliding units 111 are fixedly connected by the connecting plates 112, so that the sliding units 111 form a whole. The fixed plate 1 has grooves 14 on both sides of its surface length direction. The two sides of the sliding element 11 are embedded in the grooves 14, and the sliding element 11 can slide relative to each other along the grooves 14. In addition, the end of each sliding unit 111 that needs to be connected to the connecting plate 112 is raised upward to form a raised part 1112. The setting of the raised part 1112 makes the bottom of the sliding unit 111 and the connecting plate 112 flush after they are connected. In this embodiment, the raised part 1112 and the sliding unit 111 are integrally formed plates.

[0039] Reference Figures 1-2 The number of remote locks 2 is set according to the specifications of each multi-point lock, and each remote lock 2 is fixedly connected to the side of the sliding element 11 opposite to the central lock 6. In existing actual use scenarios, the interior of the window frame usually has a space for the central lock 6 to move, and a transition structure is usually used to connect the central lock 6 to the wrench and connect the wrench to the outside of the window frame. In this way, when in use, by controlling the wrench, the central lock 6 can be driven to move back and forth along the moving groove 13 through the transition structure, which in turn drives the sliding element 11 to move along the length direction of the fixed plate 1, and further drives several remote locks 2 to move synchronously.

[0040] Reference Figures 2-3 The positioning plate 4 is installed on the side wall of the window frame. In this embodiment, the connection between the positioning plate 4 and the window frame is varied. The positioning plate 4 can be installed on the window frame using bolts or nails, or it can be directly welded to the window frame. The latch 41 is fixedly connected to the side of the positioning plate 4 away from the window frame. It should be noted that the number of latches 41 is determined by the number of remote locks 2, so that each latch 41 connected to the window sash has a corresponding remote lock 2 connected to the window frame.

[0041] Reference Figures 1-2 In actual use, the window sash must first be closed relative to the window frame. Then, turn the wrench. The wrench will move the central lock 6 along the moving groove 13 through the adapter structure. The movement of the central lock 6 will move several remote locks 2 through the sliding element 11, so that each remote lock 2 is aligned with the corresponding latch 41 to form a latch, so that the window sash cannot be opened through the window frame. When it is necessary to unlock the window sash from the window frame, turn the wrench in the opposite direction.

[0042] Reference Figures 2-3 In addition to the above, the multi-point lock in this embodiment also includes a locking pin 3 and a locking plate 43. The locking pin 3 is connected to one side of the window sash, and the locking plate 43 is connected to one side of the window frame. The two work together to lock the locking plate 43 and the locking pin 3 in the event of a fire in existing fireproof windows without the need for manual operation of a wrench. Compared with existing fireproof windows that can only close the window sash in the event of a fire, this application can lock the two even when the window sash is closed relative to the window frame, thus alleviating the problem of the window sash and window frame not closing tightly.

[0043] Reference Figure 2 Specifically, in this embodiment, there are two locking pins 3. The two locking pins 3 are respectively located on the two symmetrical sides of the central lock 6, and each locking pin 3 is located on the same side as the remote lock 2 and is fixedly connected to the sliding element 11; the locking plate 43 is fixedly connected to the surface of the positioning plate 4.

[0044] Reference Figures 2-3 In this embodiment, each of the aforementioned latches 41 and locking plates 43 is integrally formed with the positioning plate 4. In this embodiment, the latch 41 includes a locking part 411 and guide parts 412 fixedly connected to both sides of the locking part 411. The guide parts 412 are designed to guide the remote lock 2 to correspond to the locking part 411 during the window locking process. When the window is closed, the remote lock 2 corresponds to the center position of the locking part 411, and the locking plate 43 is set directly opposite the locking pin 3. Compared with the prior art, which sets a separate latch 41 for each remote lock 2 and installs it on the window frame, firstly, positioning is convenient, as there is no need to position each latch 41 individually, and the positioning accuracy is high. The distance between adjacent latches 41 is already positioned on the positioning plate 4 before leaving the factory. Secondly, installation is convenient, as it is only necessary to fix the positioning plate 4 to the window frame, without the need for separate installation.

[0045] Reference Figures 4-5The fixed plate 1 is fixedly connected to a receiving shell 12 at one end away from each locking pin 3. In actual use, the receiving shell 12 can be hidden inside the window frame. The surface of the sliding element 11 is provided with a connecting groove for each receiving shell 12, so that the receiving shell 12 and the locking pin 3 are connected through each other. An elastic element 121 is provided inside the receiving shell 12. One end of the elastic element 121 is fixedly connected to the bottom wall of the receiving shell 12, and the other end is fixedly connected to the bottom wall of the locking pin 3. Specifically, when the elastic element 121 undergoes elastic deformation, it can drive the locking pin 3 to move back and forth along the depth direction of the receiving shell 12.

[0046] Reference Figures 4-5 In this embodiment, when the elastic element 121 is extended to its maximum extent, part of the locking pin 3 is still located inside the receiving shell 12. The elastic element 121 is a spring, and the elastic element 121 will push the locking pin 3 to move away from the bottom wall of the receiving shell 12 without the action of external force. The side wall of the fixing plate 1 is provided with a groove along the length direction for each receiving shell 12 to allow the receiving shell 12 to move. The groove is provided so that when the sliding element 11 moves along the fixing plate 1, the receiving shell 12 can move synchronously along the groove.

[0047] Reference Figures 3-5 The positioning plate 4 has two anti-detachment plates 431 in the width direction. The two anti-detachment plates 431 are fixedly connected to the opposite sides of the locking plate 43. When the window sash closes under the action of the fireproof wind brace during a fire, the locking pin 3 first abuts against the first anti-detachment plate 431. At this time, the locking pin 3 will compress the elastic element 121 and retract into the receiving shell 12 under the push of the anti-detachment plate 431. When the locking pin 3 passes the first anti-detachment plate 431 and corresponds to the locking plate 43, the elastic element 121 pushes the locking pin 3 to the side away from the receiving shell 12, so that the locking pin 3 is located between the two anti-detachment plates 431. At this time, the locking pin 3 cannot be disengaged between the two anti-detachment plates 431 without the action of external force, thus achieving the effect of temporarily locking the window sash and the window frame.

[0048] Reference Figure 3 and Figure 5 In this embodiment, when the window is closed, the side of each locking pin 3 that first abuts against the first anti-detachment plate 431 is set to be arc-shaped. This setting makes it easy for the locking pin 3 to retract into the receiving shell 12 after abutting against the first anti-detachment plate 431. The end of the locking pin 3 that is opposite to the first anti-detachment plate 431 is flat, and the direction of the flat end is the opening direction of the window. The flat end setting prevents the locking pin 3 from disengaging in the opening direction after it is located between the two anti-detachment plates 431.

[0049] Reference Figure 3 and Figure 5In this embodiment, the top wall of each anti-detachment plate 431 is provided to be arc-shaped. This design protects the locking pin 3 when it rubs against the anti-detachment plate 431, preventing sharp burrs from damaging the anti-detachment plate 431.

[0050] Reference Figure 3 Each locking plate 43 has a fixedly connected slide plate 42 that can slide back and forth along the length of the positioning plate 4 on the side wall of the positioning plate 4. Each positioning plate 4 is integrally formed with its corresponding locking plate 43. Each locking plate 43 has a fixedly connected anti-reverse plate 432 on the side away from the slide plate 42. The included angle between each anti-reverse plate 432 and the connected locking plate 43 is an obtuse angle.

[0051] Reference Figure 7 Specifically, each slide plate 42 has a through groove 421 along its length from the positioning plate 4. A guide post 44 is fixedly connected to the surface of the positioning plate 4 and is inserted into the through groove 421. When the slide plate 42 moves along the positioning plate 4, the through groove 421 and the guide post 44 are relatively displaced. The guide post 44 is used to limit the maximum movement of the slide plate 42 and to limit the direction of relative movement between the slide plate 42 and the positioning plate 4.

[0052] Reference Figure 7 Each guide post 44 is fixedly connected to a limiting plate 441 at one end away from the positioning plate 4, and the lower surface of the limiting plate 441 abuts against the upper surface of the slide plate 42; the limiting plate 441 is set to limit the slide plate 42 when it moves along the positioning plate 4, so as to prevent the slide plate 42 from coming off the positioning plate 4.

[0053] Reference Figures 2-3 and Figure 6 Each slide plate 42 has a spring-loaded component 5 on its back. Each spring-loaded component 5 includes a first fixing block 51, a second fixing block 52, and a spring-loaded element 53. The first fixing block 51 is fixedly connected to the back of the slide plate 42, the second fixing block 52 is fixedly connected to the back of the positioning plate 4, and the two ends of the spring-loaded element 53 are fixedly connected to the first fixing block 51 and the second fixing block 52, respectively. In this embodiment, the spring-loaded element 53 is a spring. When no external force is applied to the spring-loaded element 53, the spring-loaded element 53 controls the slide plate 42 to keep the locking plate 43 and the locking pin 3 in a position relative to each other.

[0054] Reference Figures 1-7In this application, when the window is locked normally, the wrench is operated. The wrench drives the central lock 6 and the sliding element 11 to slide along the length of the fixed plate 1 through the conversion structure. The sliding element 11 drives each remote lock 2 and the locking pin 3 to move synchronously until the remote lock 2 is engaged with the latch 41. In this state, the window cannot be opened. During this process, the locking pin 3 slides along the front of the anti-reverse plate 432 to the back of the anti-reverse plate 432. Under the action of the spring member 53, the locking pin 3 can limit the sliding plate 42 when it moves along the anti-reverse plate 432, so as to prevent the locking pin 3 from driving the sliding plate 42 to move synchronously by friction with the anti-reverse plate 432.

[0055] Reference Figures 1-7 When the window is opened normally, the wrench is operated. The wrench drives the central lock 6 and the sliding element 11 to slide along the length of the fixed plate 1 through the conversion structure. The sliding element 11 drives the remote lock 2 and the locking pin 3 to move synchronously. Because the locking pin 3 is located on the back of the anti-reverse plate 432 when the window is locked, and the angle between the back of the anti-reverse plate 432 and the positioning plate 4 is an acute angle, the locking pin 3 presses down on the anti-reverse plate 432 during this process. The anti-reverse plate 432 drives the sliding plate 42 to move along the surface of the positioning plate 4. At this time, the spring member 53 is compressed until the remote lock 2 separates from the latch 41. At this time, the limit between the window sash and the window frame is released, and the window sash can be opened.

[0056] Reference Figures 1-7 After the window is opened, the locking pin 3 releases its restriction on the anti-reverse plate 432. At this time, the spring-loaded part 53 will rebound under its own elasticity, so that the locking plate 43 and the locking pin 3 are aligned, in preparation for the subsequent fire when the window is open.

[0057] The implementation principle of an integrated multi-point lock in this application embodiment is as follows: When a fire occurs outside and the window sash is in the open state, the fireproof wind brace will drive the window sash to close. During the closing process of the window sash, since the spring-loaded component 53 has driven the locking plate 43 to be directly aligned with the locking pin 3, the arc-shaped side of the locking pin 3 will first abut against the first anti-detachment plate 431. After the locking pin 3 contacts the first anti-detachment plate 431, it will retract into the receiving shell 12. At this time, the elastic component 121 is compressed by force. When the locking pin 3 passes the first anti-detachment plate 431, the elastic component 121 extends under its own elasticity, so that the locking pin 3 is locked between the two anti-detachment plates 431 and directly opposite the locking pin 3. The side of the locking pin 3 closest to the open window sash is flat, so that the locking pin 3 cannot be disengaged between the two anti-detachment plates 431 without the action of external force, so that the window sash and the window frame are temporarily locked, achieving the effect of isolating the external fire.

[0058] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. An integrated multipoint lock characterized in that: a fixed plate (1) is arranged on a sash, the fixed plate (1) is provided with a sliding element (11) along the length direction, a central lock (6) is arranged at the middle part of the sliding element (11), the central lock (6) can drive the sliding element (11) to slide along the fixed plate (1), lock pins (3) are arranged at both sides of the central lock (6) and elastically connected to the surface of the sliding element (11); a positioning plate (4) is arranged on the side wall of a window frame, a locking plate (43) is arranged on the surface of the positioning plate (4) corresponding to the lock pins (3); anti-disengagement plates (431) are arranged at both sides of the locking plate (43) and higher than the surface of the locking plate (43), when the sash is closed, the lock pins (3) slide to the two anti-disengagement plate (431) assemblies and are locked; an accommodating shell (12) is arranged at the end of the sliding element (11) away from the lock pins (3), a connecting groove is arranged on the surface of the sliding element (11) corresponding to the accommodating shell (12), the lock pins (3) are arranged corresponding to the accommodating shell (12), and an elastic element (121) is arranged in the accommodating shell (12), one end of the elastic element (121) is fixedly connected to the bottom wall of the accommodating shell (12), the other end is fixedly connected to the lock pin (3), the lock pin (3) can reciprocate along the depth direction of the accommodating shell (12) under the action of the elastic element (121), and the lock pin (3) can be explored out of the accommodating shell (12) and the connecting groove to cooperate with the locking plate (43); a groove is arranged on the side wall of the fixed plate (1) for synchronous movement of the accommodating shell (12) when the sliding element (11) moves; a sliding plate (42) is arranged on the surface of the positioning plate (4) corresponding to the lock pin (3), the sliding plate (42) can move along the positioning plate (4) under the action of an external force, the locking plate (43) is fixedly connected to one end of the sliding plate (42), the end of the locking plate (43) connected to the sliding plate (42) is throughly arranged, a reverse stopping plate (432) is fixedly connected to the side of the locking plate (43) away from the sliding plate (42), when the central lock (6) is operated to lock the remote point lock (2) and the corresponding lock catch (41), the central lock (6) drives the lock pin (3) to move along the surface of the reverse stopping plate (432) through the sliding element (11), so that the lock pin (3) is clamped on the side wall of the reverse stopping plate (432) away from the locking plate (43). The side of the positioning plate (4) away from the sliding plate (42) is provided with a rebound assembly (5) for controlling the displacement of the sliding plate (42) along the positioning plate (4). Under the action of no external force, the rebound assembly (5) moves the locking plate (43) away from the locking pin (3) by pulling the sliding plate (42). Under the action of the rebound assembly (5), the relative position of the locking plate (43) and the positioning plate (4) will not change during the movement of the locking pin (3) along the reverse plate (432) away from the locking plate (43). When the central lock (6) drives the far point lock (2) to separate from the corresponding lock catch (41), the locking pin (3) will press the reverse plate (432) downward. The reverse plate (432) will drive the sliding plate (42) to move along the positioning plate (4) through the locking plate (43) under the push of the locking pin (3). In this process, the elastic element (121) will store elastic potential energy. When the window sash is opened, the rebound assembly (5) will drive the sliding plate (42) to make the locking pin (3) correspond to the reverse plate (432) under the elastic action of itself.

2. The integrated multipoint lock of claim 1, wherein: The rebound assembly (5) comprises a first fixed block (51), a second fixed block (52) and a rebound element (53). The first fixed block (51) is fixedly connected with the back of the sliding plate (42). The second fixed block (52) is fixedly connected with the back of the positioning plate (4). The two ends of the rebound element (53) are fixedly connected with the first positioning block and the second positioning block respectively.

3. The integrated multipoint lock of claim 1, wherein: When the window sash is closed, the side of the locking pin (3) abutting against the anti-disengagement plate (431) is provided with a circular arc shape.

4. The integrated multipoint lock of claim 1, wherein: A through groove (421) is formed in the surface of the sliding plate (42) along the direction of relative displacement with the positioning plate (4). A guide column (44) is fixedly connected with the surface of the positioning plate (4). When the sliding plate (42) moves along the positioning plate (4), the through groove (421) and the guide column (44) are relatively displaced. The guide column (44) is used to limit the maximum displacement of the sliding plate (42).

5. The integrated multipoint lock of claim 4, wherein: The end of the guide column (44) away from the positioning plate (4) is fixedly connected with a limiting plate (441). The lower surface of the limiting plate (441) abuts against the upper surface of the sliding plate (42).

6. The integrated multipoint lock of claim 1, wherein: The included angle between the reverse plate (432) and the locking plate is obtuse.

7. The integrated multipoint lock of claim 1, wherein: The lock catches (41) are all arranged on the positioning plate (4) and are arranged on the same side as the sliding plate (42). Each lock catch (41) is integrally formed with the positioning plate (4).

8. The integrated multipoint lock of claim 1, wherein: The side of the reverse plate (432) and each anti-disengagement plate (431) away from the locking plate (43) is provided with a circular arc shape.

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