Casement window locking system with concealed handle

Abstract

This invention discloses a casement window locking system with a concealed handle, comprising a concealed handle, a transmission lock box, two first transmission rods, two connecting block components, and two lock seats. The concealed handle is connected to the lock seats, and the lock seats are respectively connected to the two first transmission rods. One first transmission rod is connected to a connecting block component, and one connecting block component is connected to a lock seat. The lock box, by incorporating the concealed handle, transmission lock box, two first transmission rods, two connecting block components, and two lock seats, allows the concealed handle to connect to the transmission lock box. The handle, in conjunction with a gear and rack mechanism, drives a sliding block to move. The sliding block then moves components inside the transmission lock box, which in turn, via the first transmission rods, moves the connecting block components, causing the connecting block components to lock or unlock the lock seats, thereby opening or locking the window sash. The overall structure is simple, practical, and reliable. The handle can be concealed within the window sash profile, resulting in a good overall viewing angle.

Description

Technical Field

[0001] This invention relates to the field of hardware door and window technology, and in particular to a casement window locking system with a concealed handle. Background Technology

[0002] With the development of aluminum alloy doors and windows and the increasing awareness of energy conservation and environmental protection, people have placed higher demands on the installation methods of door and window hardware. For the increasingly popular narrow-frame profiles, traditional lock boxes that require milling grooves in the profiles cannot meet the installation needs of this type of profile, and the grooved installation method increases installation costs and reduces installation efficiency. To address these shortcomings, a casement window locking system with a concealed handle has been designed to solve these problems. Announcement No. CN117188865B discloses a self-locking transmission shell structure and a door / window handle structure using the same. The self-locking transmission shell structure includes a shell, a transmission assembly, a locking hook, and a support. The transmission assembly includes a transmission rack and a transmission gear meshing with one side of the transmission rack. The locking hook is rotatably connected to the upper end of the shell. The upper end of the support is connected to the locking hook, and the lower end is rotatably connected to the shell. A limiting element is provided at the upper end of the transmission rack, and a limiting groove is provided in the locking hook. When the transmission rack is raised to a first predetermined position, the limiting element is located within the limiting groove; when the transmission rack is lowered to a second predetermined position, the limiting element disengages from the limiting groove. This invention, through the cooperation of the limiting element, the limiting groove, and the elastic element, allows the transmission rack to move to a predetermined position, ensuring that the handle is in position and does not spring back when the door / window is open and raised, maintaining its position. During descent, the handle movement is slowed down to prevent rapid rotation, and the handle does not wear out with frequent use. However, this handle structure is relatively complex overall and has low installation efficiency. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the purpose of this invention is to provide a practical and reliable casement window locking system with a hidden handle.

[0004] To achieve the above objectives, the present invention provides the following solution: a casement window locking system with a concealed handle, comprising a concealed handle, a transmission lock box, two first transmission rods, two connecting block components, and two lock seats. The concealed handle is connected to the lock seats, and the lock seats are respectively connected to the two first transmission rods. One of the first transmission rods is connected to a connecting block component, and one of the connecting block components is connected to a lock seat. The concealed handle includes a base, a handle, a pivot, and a sliding block. The sliding block is slidably connected to the base, and a rack portion is formed on the sliding block. A gear portion is formed at the end of the handle, and the gear portion meshes with the rack portion. The gear portion is hinged to the base via the pivot.

[0005] The beneficial effects of this invention are as follows: the overall structure is simple and practical, and the installation efficiency is high. The system is designed with a hidden handle, a transmission lock box, two first transmission rods, two connecting block components, and two lock seats. The hidden handle is connected to the transmission lock box, and the handle, through the engagement of the gear and rack parts, drives the sliding block to move. The sliding block drives the components inside the transmission lock box to move, and then the transmission lock box, through the first transmission rods, drives the connecting block components to move, causing the connecting block components to lock or unlock the lock seat, thereby opening or locking the window sash. The overall structure is simple, practical, and reliable. The handle can be hidden inside the window sash profile, resulting in a good overall viewing effect. At the same time, the lock box does not require milling grooves for installation; it can be directly installed against the surface of the window sash profile, improving installation efficiency.

[0006] Furthermore, a first mounting groove is formed on the front of the seat body, and a second mounting groove is formed on the back of the seat body. The first mounting groove and the second mounting groove extend along the length direction of the seat body, and the first mounting groove communicates with the second mounting groove. The handle is provided in the first mounting groove, and the sliding block is provided in the second mounting groove.

[0007] Furthermore, a gasket is provided between the first mounting groove and the gear part, and the rotating shaft passes through the gasket.

[0008] Furthermore, a cover plate is detachably installed on the back of the seat body, and the cover plate is used to cover the sliding block inside the seat body.

[0009] Furthermore, the gear section has two positioning grooves, which are arranged at right angles to the connection point between the gear section and the rotating shaft. The cover plate has three positioning holes on the opposite side of the base, arranged in a ring with intervals around the connection point between the gear section and the rotating shaft. The included angle between any two adjacent positioning holes is 90°. The positioning holes are aligned with the positioning grooves. Each positioning groove contains a spring and a steel ball, with the spring connecting to the steel ball. The spring is used to push the steel ball against the positioning hole. With this structure, the spring, steel ball, and positioning holes on the cover plate cooperate to position the handle. The overall structure is simple and practical, and the spring and steel ball positioning increases the stability of the handle, making it less prone to shaking and improving the stability of the window sash locking mechanism.

[0010] Furthermore, one end of the handle is formed with the gear portion, and the other end of the handle is bent to form a pull handle portion. With the above structure, the pull handle portion facilitates pulling up the handle.

[0011] Furthermore, the transmission lock box includes a base, a top cover, and two pads. The base has a sliding groove that extends along the length of the base, and the top cover is slidably connected to the sliding groove. The two pads are detachably mounted on the top of the top cover. With the above structure, the lock box of this invention is simple and practical, and offers good transmission stability.

[0012] Furthermore, decorative covers are provided at both the front and rear ends of the base, and the decorative covers are used to restrict the top cover from sliding out of the sliding groove.

[0013] Furthermore, mounting posts are formed at the front and rear ends of the top of the top cover, and the mounting posts are snapped to the first transmission rod, wherein the pad is provided between the top cover and the first transmission rod.

[0014] Furthermore, a fixing block is formed on the top cover, and a fixing groove is formed on the sliding block. The fixing block is snapped into the fixing groove. With the above structure, the handle is connected to the top cover of the lock box via the sliding block. Rotating the handle 90° causes the sliding block to move, which in turn moves the lock box, the first transmission rod, and the locking point on the connecting block, thus realizing the opening function of the handle. Compared with a hidden handle that relies on a button to open the handle, the operation is simpler and more convenient, less prone to failure, and can also reduce the overall cost of the handle.

[0015] Furthermore, the connecting block component includes a connecting block and an eccentric locking pin. The connecting block is connected to the first transmission rod, and the eccentric locking pin is provided on the connecting block. The eccentric locking pin cooperates with the lock seat for locking. Attached Figure Description

[0016] Figure 1 The overall structure of the present invention is installed on the three-dimensional window sash profile. Figure 1 .

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0018] Figure 3 The overall structure of the present invention is installed on the three-dimensional window sash profile. Figure 2 .

[0019] Figure 4 The overall structure of the present invention is installed on the three-dimensional window sash profile. Figure 3 .

[0020] Figure 5 The overall structure of the present invention is installed on the three-dimensional window sash profile. Figure 4 .

[0021] Figure 6 The overall structure of the present invention is installed on the three-dimensional window sash profile. Figure 5 .

[0022] Figure 7 The overall structure of the present invention is installed on the three-dimensional window sash profile. Figure 6 .

[0023] Figure 8 The overall structure of the present invention is installed on the three-dimensional window sash profile. Figure 7 .

[0024] Figure 9 This is a perspective view of the hidden handle and lock box of the present invention.

[0025] Figure 10 This is a perspective view of the hidden handle of the present invention.

[0026] Figure 11 Disassembly of the concealed handle of the present invention Figure 1 .

[0027] Figure 12 Disassembly of the concealed handle of the present invention Figure 2 .

[0028] Figure 13 Front view of the internal structure of the hidden handle of the present invention Figure 1 (Handle folded up).

[0029] Figure 14 Side view of the internal structure of the hidden handle of the present invention Figure 1 (Handle folded up).

[0030] Figure 15 Front view of the internal structure of the hidden handle of the present invention Figure 2 (Handle open).

[0031] Figure 16 Side view of the internal structure of the hidden handle of the present invention Figure 2 (Handle open).

[0032] Figure 17 This is a perspective view of the lock box of the present invention.

[0033] Figure 18 Disassembly of the lock box of the present invention Figure 1 .

[0034] Figure 19 Disassembly of the lock box of the present invention Figure 2 .

[0035] Among them, 1 is a concealed handle, 11 is a base, 111 is a first mounting groove, 112 is a second mounting groove, 12 is a handle, 121 is a gear part, 1211 is a positioning groove, 122 is a handle part, 13 is a rotating shaft, 14 is a sliding block, 141 is a rack part, 142 is a fixing groove, 15 is a steel ball, 16 is a spring, 17 is a cover plate, 171 is a positioning hole, 18 is a gasket, 2 is a transmission lock box, 21 is a base, 211 is a sliding groove, 22 is a top cover, 221 is a mounting post, 222 is a fixing block, 23 is a pad, 24 is a decorative cover, 3 is a first transmission rod, 41 is a connecting block, 5 is a lock seat, 6 is a window sash profile, and 61 is a through hole. Detailed Implementation

[0036] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] See appendix Figure 1 To be continued Figure 19 As shown, a casement window locking system with a concealed handle includes a concealed handle 1, a transmission lock box 2, two first transmission rods 3, two connecting block components 41, and two lock seats 5. The concealed handle 1 is connected to the lock seats 5, and the lock seats 5 are respectively connected to the two first transmission rods 3. One first transmission rod 3 is connected to a connecting block component 41, and one connecting block component 41 is connected to a lock seat 5.

[0039] The concealed handle 1 includes a base 11, a handle 12, a pivot 13, and a sliding block 14. The sliding block 14 is slidably connected to the base 11. A rack portion 141 is formed on the sliding block 14. A gear portion 121 is formed at the end of the handle 12. The gear portion 121 meshes with the rack portion 141. The gear portion 121 is hinged to the base 11 through the pivot 13.

[0040] In this embodiment, a first mounting groove 111 is opened on the front of the seat 11, and a second mounting groove 112 is opened on the back of the seat 11. The first mounting groove 111 and the second mounting groove 112 extend along the length direction of the seat 11, and the first mounting groove 111 communicates with the second mounting groove 112. A handle 12 is provided in the first mounting groove 111, and a sliding block 14 is provided in the second mounting groove 112. A gasket 18 is provided between the first mounting groove 111 and the gear part 121, and the rotating shaft 13 passes through the gasket 18.

[0041] In this embodiment, a cover plate 17 is detachably installed on the back of the seat 11. The cover plate 17 is used to cover the sliding block 14 inside the seat 11. The gear part 121 has two positioning grooves 1211. The two positioning grooves 1211 are distributed at right angles with the connection between the gear part 121 and the rotating shaft 13 as the center. The cover plate 17 has three positioning holes 171 on the opposite side of the seat 11. The three positioning holes 171 are arranged in a ring with the connection between the gear part 121 and the rotating shaft 13 as the center. The included angle between two adjacent positioning holes 171 is 90°. The positioning holes 171 are aligned with the positioning grooves 1211. Each positioning groove 1211 is provided with a spring 16 and a steel ball 15. The spring 16 is connected to the steel ball 15. The spring 16 is used to push the steel ball 15 to abut against the positioning hole 171.

[0042] In this embodiment, one end of the handle 12 is formed with a gear portion 121, and the other end of the handle 12 is bent to form a handle portion 122.

[0043] In this embodiment, the transmission lock box 2 includes a base 21, a top cover 22, and two pads 23. The base 21 has a sliding groove 211 that extends along the length of the base 21. The top cover 22 is slidably connected to the sliding groove 211. The two pads 23 are detachably installed on the top of the top cover 22.

[0044] In this embodiment, mounting posts 221 are formed at the front and rear ends of the top of the top cover 22, and the mounting posts 221 are snapped to the first transmission rod 3, wherein a pad 23 is provided between the top cover 22 and the first transmission rod 3.

[0045] In this embodiment, decorative covers 24 are provided at the front and rear ends of the base 21, and the decorative covers 24 are used to restrict the top cover 22 from sliding out of the sliding groove 211; the window sash profile 6 has a through hole 61, the top cover 22 has a fixed block 222 formed on it, the sliding block 14 has a fixed groove 142, and the fixed block 222 passes through the through hole 61 and is snapped into the fixed groove 142.

[0046] In this embodiment, the connecting block 41 component includes a connecting block 41 and an eccentric locking pin. The connecting block 41 is connected to the first transmission rod 3, and the eccentric locking pin is provided on the connecting block 41. The eccentric locking pin cooperates with the lock seat 5 for locking.

[0047] In this embodiment, the assembly process of the hidden handle 1 is as follows: the gasket 18 is installed into the handle 12, the base 11 and the pivot 13 are assembled in sequence, the spring 16 and the steel ball 15 are installed into the positioning groove 1211 of the handle 12, the sliding block 14 is installed into the second mounting groove 112 of the base 11, the cover plate 17 is installed on the base 11 to cover the sliding block 14, the cross-head countersunk screws are installed, and finally the pivot 13 and the cover plate 17 are riveted to complete the assembly of the hidden handle 1.

[0048] The side-mounted concealed handle 1 operates primarily by locking when the handle is at 0° and opening when it is at 90°. 1. Handle 12 in 0° state: When the spring 16 pushes the steel ball 16 to abut the positioning hole 171 of the top cover plate 17, the handle is positioned in the 0° state. At this time, the locking point on the connecting block 41 interacts with the lock seat, and the window sash is in the closed state.

[0049] 2. Handle 12 at 90°: Manually lift the handle 122 of the handle 12 and rotate the handle 12 to push the steel ball 15 out of the positioning hole 171 until the handle 12 is rotated to 90°. The spring 16 pushes the steel ball 15 back into the corresponding positioning hole 171 of the cover plate 17, so that the handle is positioned at 90°. By rotating the handle 12, the top cover 22 of the lock box 2 is moved in sequence. The top cover 22 moves the first transmission rod 3. The first transmission rod 3 moves the locking point on the connecting block 41, so that the locking point is disengaged from the lock seat 5. At this time, the window sash profile 6 can be pushed outward by the handle 12; otherwise, the window sash can be closed.

[0050] In this embodiment, compared to a regular handle with a base, a regular handle is in the same direction as the base when it is at 0° and perpendicular to the base when it is at 90°. In this embodiment, the hidden handle 1 and handle 12 are always in the same plane as the base 11 when they are open or closed, ensuring the hidden effect of the handle when closed and making the overall window look beautiful.

[0051] The hidden handle 1 mounted on this side is opened by manually lifting the handle part 122 of the handle 12 and rotating the handle 12 to 90°. Compared with opening the handle by using a button, the operation of the hidden handle in this embodiment is simpler, more convenient and less prone to failure.

[0052] In this embodiment, the hidden handle 1 is installed by fixing the hidden handle 1 and the lock box 2 to the window sash profile 6 with screws. The hidden handle 1 is basically hidden in the cavity of the window sash profile 6, with only the surface of the base 11 exposed on the surface of the profile, thus ensuring the hidden visual effect of the handle.

[0053] In this embodiment, the transmission method of the lock box 2 is that the sliding block 14 of the hidden handle 1 drives the top cover 22 of the lock box 2 to move linearly. The top cover 22 drives the first transmission rod 3 to move, and the first transmission rod 3 drives the connecting block component to move. Finally, the eccentric lock pin on the connecting block component cooperates with the lock seat 5 to achieve the effect of locking the window sash.

[0054] In this embodiment, the lock box 2 is installed without opening the profile groove. It can be directly installed against the surface of the window sash profile 6, which can eliminate the error caused by opening the hole for installation of the lock box 2 and improve the installation efficiency.

[0055] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any person skilled in the art can make more possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, all equivalent changes made based on the concept of the present invention without departing from the scope of the present invention should be covered within the protection scope of the present invention.

Claims

1. A casement window locking system with hidden handle, comprising a hidden handle (1), a transmission lock box (2), two first transmission rods (3), two connecting blocks (41) components, two lock seats (5), characterized in that: The hidden handle (1) is connected to the lock seat (5), and the lock seat (5) is connected to two first transmission rods (3) respectively. One of the first transmission rods (3) is connected to a connecting block (41) component, and one of the connecting block (41) components is connected to a lock seat (5). The hidden handle (1) includes a base (11), a handle (12), a pivot (13), and a sliding block (14). The sliding block (14) is slidably connected to the base (11). A rack portion (141) is formed on the sliding block (14). A gear portion (121) is formed at the end of the handle (12). The gear portion (121) meshes with the rack portion (141). The gear portion (121) is hinged to the base (11) through the pivot (13).

2. A casement window locking system with a concealed handle according to claim 1, characterized in that: The seat (11) has a first mounting groove (111) on the front and a second mounting groove (112) on the back. The first mounting groove (111) and the second mounting groove (112) extend along the length of the seat (11). The first mounting groove (111) is connected to the second mounting groove (112). The handle (12) is provided in the first mounting groove (111) and the sliding block (14) is provided in the second mounting groove (112).

3. A casement window locking system with a concealed handle according to claim 2, characterized in that: A gasket (18) is provided between the first mounting groove (111) and the gear part (121), and the rotating shaft (13) passes through the gasket (18).

4. A casement window locking system with a concealed handle according to claim 1, characterized in that: A cover plate (17) is detachably installed on the back of the seat (11), and the cover plate (17) is used to cover the sliding block (14) inside the seat (11).

5. A casement window locking system with a concealed handle according to claim 4, characterized in that: The gear part (121) has two positioning grooves (1211). The two positioning grooves (1211) are distributed at right angles with the connection between the gear part (121) and the rotating shaft (13) as the center. The cover plate (17) and the seat (11) have three positioning holes (171) on the opposite side. The three positioning holes (171) are arranged in a ring with the connection between the gear part (121) and the rotating shaft (13) as the center. The included angle between two adjacent positioning holes (171) is 90°. The positioning holes (171) are aligned with the positioning grooves (1211). Each positioning groove (1211) is provided with a spring (16) and a steel ball (15). The spring (16) is connected to the steel ball (15). The spring (16) is used to push the steel ball (15) to abut against the positioning hole (171).

6. A casement window locking system with a concealed handle according to claim 1, characterized in that: The handle (12) has a gear part (121) formed at one end and a handle part (122) formed at the other end.

7. A casement window locking system with a concealed handle according to claim 1, characterized in that: The transmission lock box (2) includes a base (21), a top cover (22), and two pads (23). The base (21) has a sliding groove (211) that extends along the length of the base (21). The top cover (22) is slidably connected to the sliding groove (211). The two pads (23) can be detachably installed on the top of the top cover (22).

8. A casement window locking system with a concealed handle according to claim 7, characterized in that: The top cover (22) has mounting posts (221) formed at the front and rear ends of the top, and the mounting posts (221) are snapped to the first transmission rod (3). The pad (23) is provided between the top cover (22) and the first transmission rod (3).

9. A casement window locking system with a concealed handle according to claim 8, characterized in that: The top cover (22) has a fixed block (222) formed on it, and the sliding block (14) has a fixed groove (142) formed on it. The fixed block (222) is snapped into the fixed groove (142).

10. A casement window locking system with a concealed handle according to claim 1, characterized in that: The connecting block (41) component includes a connecting block (41) and an eccentric locking pin. The connecting block (41) is connected to the first transmission rod (3). The eccentric locking pin is provided on the connecting block (41). The eccentric locking pin cooperates with the lock seat (5) for locking.

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