Push-pull fan lock structure and door and window assembly

Abstract

The utility model provides a push -and -pull fan locking structure, including the transmission bar of push -and -pull fan side edge sliding connection, transmission bar other side is equipped with locking piece. Through the upper slide movement of transmission bar, drive the locking hook on locking piece is locked on the upper side of the lock catch groove of the door and window frame inside lock catch piece, realize a vertical direction's hook catch locking. Also disclose door and window assembly, including the push -and -pull fan locking structure, also include the door and window frame, and through the setting door and window hardware system in the door and window frame sliding push -and -pull fan, wherein the upper and lower ends of transmission bar are connected to the both sides of door and window hardware system respectively. Through the application preceding push -and -pull fan locking structure, and the upper and lower ends of transmission bar are integratedly connected to the both sides of door and window hardware system of drive push -and -pull fan sliding, has realized the linkage cooperation of locking operation and fan body movement.

Description

Technical Field

[0001] This utility model relates to the field of door and window system technology, specifically to a sliding sash locking structure and door and window components. Background Technology

[0002] Traditional sliding door and window locking mechanisms often employ simple bolts or rotary latches for securing the door. These mechanisms suffer from inconvenience, limited locking force, and a tendency to wear and loosen with frequent use. Especially with larger or heavier sliding doors, traditional locking methods often fail to provide sufficient and stable locking force, potentially causing unusual noises or even accidental opening when subjected to external forces or vibrations, thus affecting safety and sealing performance.

[0003] While some existing technologies employ locking mechanisms using a transmission bar to engage a locking block, these mechanisms typically involve a simple horizontal latch, resulting in insufficient locking depth and reliability. Furthermore, the locking and unlocking processes of such structures are not smooth, leading to rapid wear between components and a tendency for transmission jamming or locking failure after prolonged use. Therefore, the market urgently needs a sliding fan locking solution that is structurally sound, easy to operate, and provides a more robust and reliable locking mechanism. Utility Model Content

[0004] This utility model proposes a sliding door locking structure, which solves the problem that traditional locking methods in the prior art often fail to provide sufficient and stable locking force, which may cause abnormal noises or even accidental opening of doors and windows when subjected to external forces or vibrations.

[0005] The technical solution of this utility model is implemented as follows: The sliding sash locking structure includes a transmission bar slidably connected to the side of the sliding sash, and a locking member on the other side of the transmission bar; it also includes a latching member located inside the door / window frame, the latching member having a latching groove, and the locking member having a latching hook extending into the latching groove, the upward sliding of the transmission bar causing the latching hook to latch onto the upper part of the latching groove.

[0006] Furthermore, the upper part of the latch groove is sloping, and the end of the locking hook is pointed and cooperates with the sloping structure above the latch groove.

[0007] Furthermore, the locking member has a guide groove, and the locking member has a guide shaft that extends into the guide groove and slides therein.

[0008] Furthermore, one side of the top of the guide groove is curved. The upward sliding of the transmission bar causes the guide shaft to slide along the curved guide groove, thereby causing the push-pull sash to move laterally within the door and window frame.

[0009] Furthermore, it also includes a lock box located in the sliding fan, wherein a gear is rotatably disposed in the lock box, and a rack extending into the side of the transmission bar near the lock box and meshing with the gear is provided therein.

[0010] Furthermore, handles fixed to the push-pull fan are provided on both sides of the lock box, and a square shaft with a through gear and capable of driving the gear to rotate is provided between adjacent handles.

[0011] Furthermore, the transmission component has multiple locking slots, and a locking tongue is slidably provided in the lock box. One side of the locking tongue is provided with a locking tongue block that extends to the locking slot to lock the transmission bar.

[0012] Furthermore, the lock box is provided with a sliding rib, and the lock tongue is provided with a sliding groove, which slides on the sliding rib.

[0013] Furthermore, the lock box is provided with a lock cylinder that extends to both ends to connect with the handle. The lock cylinder is provided with a rotatable paddle, and the lock tongue is provided with a corresponding groove below the paddle for paddle to be paddled.

[0014] The door and window assembly includes the aforementioned sliding sash locking structure, a door and window frame, and a sliding sash that slides within the door and window frame via a door and window hardware system, wherein the upper and lower ends of the transmission strip are respectively connected to both sides of the door and window hardware system.

[0015] The beneficial effects of the technical solution provided in this application are as follows: 1. This application utilizes the upward sliding motion of the transmission bar to drive the locking hook on the locking component to lock upwards and engage with the locking groove of the locking component on the inner side of the door / window frame, achieving a vertical hook-locking mechanism. This structure effectively overcomes the shortcomings of insufficient locking force in traditional horizontal locking mechanisms. By utilizing the support and cooperation between the locking hook and the upper edge of the locking groove, it effectively restricts the vertical and horizontal movement of the sliding sash, making the locking more secure and reliable, and significantly improving the load-bearing capacity. At the same time, the entire locking process is completed in one smooth motion by the sliding transmission bar, resulting in smooth and effortless operation, minimal wear between components, a better user experience, and an extended service life of the lock, combining excellent security and durability. 2. This application optimizes the fit between the locking hook and the latch groove, utilizing the sloping structure above the latch groove and the pointed design at the end of the locking hook to achieve smooth entry and tight engagement during locking, effectively improving the tightness and reliability of the lock. The guide shaft and the guide groove with a curved top work together to guide the accurate movement of the locking components during the upward sliding of the transmission bar. Furthermore, the curved structure cleverly causes the push-pull sash to shift inward at the locking end, significantly enhancing the sealing and anti-pry performance of the entire sash. The entire transmission mechanism is integrated within the lock housing. The handle drives the gears to rotate via a square shaft, which in turn drives the rack-and-pinion transmission bar up and down, resulting in smooth and efficient power transmission and effortless operation. In addition, the innovative self-locking mechanism, through the cooperation of the latch block and the locking port on the transmission bar, and the control of the latch slot by the lock cylinder paddle, achieves reliable positioning and anti-theft locking of the transmission bar in both locked and unlocked states, greatly improving the system's security level and overall ease of use. 3. This application, by applying the aforementioned sliding sash locking structure and integrating its upper and lower ends of the transmission bar to both sides of the door and window hardware system that drives the sliding sash, achieves coordinated locking operation and sash movement. When the handle is operated, the hardware system drives the sliding sash to slide and precisely position itself, while simultaneously driving the transmission bar to move up and down, causing the locking hook to be guided along the slope into the locking groove and finally locked upwards. This process not only ensures the firmness and security of the lock but also significantly improves the overall sealing, sound insulation, and wind pressure resistance of the window through end-side lateral pressing. This integrated design makes locking a natural end segment of the sash's movement trajectory, allowing users to simultaneously complete the positioning, locking, and sealing of the sliding sash with a single operation. This simplifies operation while greatly enhancing the overall integrity, security, and user experience of the door and window system. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the locking structure of the push-pull fan of this utility model; Figure 2 This is an exploded view of the locking structure of the push-pull fan of this utility model; Figure 3 This is an exploded view of the locking component and the latching component of this utility model; Figure 4 This is an exploded view of the transmission bar, lock box, lock cylinder, and lock tongue of this utility model; Figure 5This is a partial schematic diagram of the locking structure of the push-pull fan of this utility model; Figure 6 This is a schematic diagram of the door and window components of this utility model; Figure 7 This is a schematic diagram of the push-pull fan of this utility model; Figure 8 This is a schematic diagram of the door and window hardware system of this utility model; Figure 9 This is a schematic diagram of the door and window hardware system of this utility model after lateral displacement; Figure 10 This is a schematic diagram of the door and window hardware system of this utility model before lateral displacement.

[0018] In the diagram: 1 Lock box, 11 Gear, 12 Sliding rib, 2 Transmission bar, 21 Rack, 22 Lock mouth, 3 Locking element, 31 Locking hook, 32 Guide shaft, 4 Locking fastener, 41 Locking slot, 42 Guide slot, 5 Lock cylinder, 51 Paddle, 6 Handle, 61 Square shaft, 7 Lock tongue, 71 Lock tongue block, 72 Sliding groove, 73 Paddle groove, 8 Door and window frame, 9 Sliding sash, 91 Door and window hardware system. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] The core of this invention lies in an innovative vertical hook-locking mechanism. The main body of the sliding sash locking structure includes a transmission bar 2 installed along the side of the sliding sash 9 and capable of sliding up and down. A locking element 3 is fixedly connected to the side of the transmission bar 2 facing the door / window frame. Corresponding to the locking element 3, a latching element 4 is installed on the inner side of the door / window frame, and the latching element 4 has a downward-opening latching groove 41. The locking element 3 is provided with a forward-extending latching hook 31 that can extend into the latching groove 41. Its basic locking action is as follows: by sliding the transmission bar 2 upwards, the connected locking element 3 and latching hook 31 are driven to rise as a whole, so that the latching hook 31 ultimately hooks upwards and locks against the upper wall of the latching groove 41, thereby achieving a vertical support-type locking. Compared with traditional horizontal bolts, this structure can more effectively resist vertical prying and horizontal displacement.

[0021] To ensure a smooth locking process and a tight final lock, this invention optimizes the mating surfaces of the locking hook 31 and the locking groove 41. Specifically, the upper wall of the locking groove 41 is constructed as a slope. Simultaneously, the end of the locking hook 31 is designed as a pointed shape. This combination of slope and pointed tip allows the locking hook 31 to smoothly enter and gradually tighten like a wedge as it rises into the locking groove 41, effectively reducing interference and friction, ultimately achieving a tight, gapless engagement and significantly improving the reliability and sealing of the lock.

[0022] To precisely guide the movement trajectory of the locking member 3, this invention incorporates a guiding mechanism. In addition to the locking groove 41, the locking member 4 also has a guide groove 42. Correspondingly, a forward-extending guide shaft 32 is provided on the locking member 3, which inserts into and slides within the guide groove 42. This cooperation between the guide shaft 32 and the guide groove 42 ensures that the locking member 3 does not wobble as it moves up and down with the transmission bar 2, maintaining the correct relative position with the locking member 4, thus providing a fundamental guarantee for reliable locking.

[0023] The guiding mechanism of this invention goes a step further, achieving a locking and pressing function. The key lies in the fact that the top side of the guide groove 42 is designed with a specific curved structure. When the transmission bar 2 slides up to near its end, the guide shaft 32 moves precisely to the curved section at the top of the guide groove 42. Within this section, the curved groove wall forces the guide shaft 32, along with the rigidly connected locking member 3 and the entire sliding sash 9, to produce a slight lateral displacement towards the inside of the door / window frame. This end-side movement ensures that the sealing strip of the sliding sash 9 is tightly pressed against the door / window frame, greatly improving the overall sealing and sound insulation performance and wind pressure resistance of the window.

[0024] The power transmission system of this utility model is highly integrated into a lock box 1 housed within the sliding fan profile 9. A gear 11 is rotatably mounted inside the lock box 1 via a rotating shaft. A longitudinally extending rack 21 is located on the side of the transmission bar 2 near the lock box 1, extending into the lock box 1 and meshing with the gear 11. This gear 11 and rack 21 transmission method efficiently and smoothly converts the rotational motion of the gear 11 into precise linear motion of the transmission bar 2, resulting in high transmission efficiency and smooth operation.

[0025] To facilitate user operation, handles 6 are fixedly installed at the positions corresponding to the sliding doors 9 on both sides of the lock box 1. A square shaft 61, passing through the central square hole of the gear 11, connects the two handles 6. When the user rotates either handle 6, the square shaft 61 rotates accordingly, using its square cross-section to drive the gear 11 to rotate synchronously. This square shaft 61 transmission structure is simple and reliable, ensuring the synchronicity and consistency of operation of both handles 6.

[0026] To prevent the transmission bar 2 from moving accidentally when not in operation, this invention incorporates a self-locking mechanism. Multiple locking slots 22 are spaced apart along the length of the transmission bar 2. Simultaneously, a locking tongue 7 is slidably disposed within the lock housing 1. One side of the locking tongue 7 has a locking tongue block 71 that can be inserted into any of the locking slots 22 on the transmission bar 2. When the locking tongue block 71 slides and engages with a locking slot 22, the transmission bar 2 is locked in its current position and cannot move, thus ensuring the stability of the locked state.

[0027] To ensure stable linear movement of the latch 7, this invention incorporates a guide structure within the lock housing 1. Specifically, a sliding rib 12 protrudes from the inner wall of the lock housing 1, while a groove 72 matching the shape of the sliding rib 12 is formed on the latch 7. The groove 72 slides along the sliding rib 12, precisely constraining the degree of freedom of movement of the latch 7, allowing it to move only forward and backward in a preset direction. This ensures that the latch block 71 can accurately extend and engage or disengage from the lock opening 22.

[0028] This invention further incorporates an anti-theft locking function. A lock cylinder 5 is housed within the lock housing 1. Both ends of the lock cylinder 5 extend to connect with handles 6 on either side via connectors, allowing for key operation from both inside and outside. A rotatable paddle 51 is rotatably mounted within the lock cylinder 5. Corresponding to the paddle 51, a groove 73 is formed on the latch 7. When the user rotates the lock cylinder 5 with the key, it causes the paddle 51 to rotate. The end of the paddle 51 swings within the groove 73, thereby driving the latch 7 to move, causing the latch block 71 to disengage from the locking slot 22 of the transmission bar 2, releasing the lock on the transmission bar 2. Only then can the handles 6 be operated. Conversely, the latch block 71 swings in the opposite direction, causing it to re-engage into the locking slot 22, achieving anti-theft locking.

[0029] This invention also applies the aforementioned sliding sash locking structure to a complete door and window assembly. This assembly includes a door and window frame 8 and a sliding sash 9 that can slide within the frame 8 via a door and window hardware system 91. Crucially, the upper and lower ends of the transmission strip 2 are mechanically connected to both sides of the door and window hardware system 91 that drives the sliding sash 9. This integrated design allows the movement and locking action of the sliding sash 9 to be linked.

[0030] When the user pushes the sliding sash 9 to the closed position, the door and window hardware system 91 moves the sliding sash 9, and at the same time, it drives the transmission bar 2 and its locking element 3 to the position corresponding to the locking element 4 on the frame through the connection point. At this time, the locking hook 31 and the guide shaft 32 are aligned with the locking groove 41 and the guide groove 42, respectively.

[0031] The user rotates the handle 6, which in turn drives the gear 11 to rotate via the square shaft 61. The gear 11 drives the rack 21, causing the transmission bar 2 to slide upwards. The transmission bar 2 causes the locking element 3 to rise, and the locking hook 31 moves upwards along the sloping surface of the locking groove 41 and finally hooks tightly. At the same time, the guide shaft 32 slides along the curved top of the guide groove 42, driving the entire push-pull fan 9 to make a slight pressing lateral movement inwards, achieving complete locking and sealing.

[0032] After the transmission bar 2 reaches the locked position, rotate the lever 51 on the lock cylinder 5 to move the bolt 7 inside the lock box 1 forward. This causes the bolt block 71 on the bolt 7 to engage with the corresponding lock slot 22 on the transmission bar 2, locking the transmission bar 2 and preventing it from accidentally sliding down and unlocking. When unlocking is required, the user must use the key to rotate the lock cylinder 5, and use the lever 51 to move the slot 73 on the bolt 7, causing the bolt block 71 to retract and disengage from the lock slot 22. Only then can the handle 6 be rotated in the opposite direction to unlock.

[0033] It should be noted that the door and window hardware system 91 mentioned in the door and window assembly described in this utility model is conventional prior art in the field. It typically includes a pulley system installed on the sliding sash 9 and a matching slide rail (not fully shown in the figure) installed on the door and window frame 8, thereby enabling the sliding sash 9 to suspend and slide smoothly within the door and window frame 8. Those skilled in the art will understand that the specific structure, pulley material, and installation method of this door and window hardware system 91 are common knowledge in the field. The innovation and scope of protection of this utility model do not lie in the door and window hardware system 91 itself, but in the aforementioned sliding sash locking structure and the transmission bar 2 of the locking structure. That is, this utility model fully utilizes the motion frame of existing hardware systems, achieving coordinated control of the locking action and the sash sliding by connecting the upper and lower ends of the transmission bar 2 to both sides of the door and window hardware system 91.

[0034] In summary, this embodiment details the process of power input from the handle 6, transmitted through the square shaft 61, gear 11, and rack 21 to the transmission bar 2, and then through the precise cooperation of the locking member 3 and the latching member 4 to achieve vertical hook locking and lateral shifting clamping. Finally, the latching member 7 and the lock cylinder 5 complete the self-locking and anti-theft workflow. All components are interlocked and work together.

[0035] As can be seen from the detailed description of the above embodiments, the technical solution of this utility model not only solves the problems of insufficient locking force and inconvenient operation mentioned in the background art, but also, through systematic integration and innovation, elevates the simple locking function into a comprehensive solution integrating precise positioning, firm locking, sealing and tightening, and anti-theft security. The linkage connection between the transmission bar 2 and the door and window hardware system 91 is a key extension, which makes locking a natural continuation and final guarantee of the closing action of the sliding sash 9, greatly optimizing the user experience and the overall performance of the product.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sliding sash locking structure, including a transmission bar (2) slidably connected to the side of the sliding sash, and a locking member (3) on the other side of the transmission bar (2); and a latching member (4) located inside the door and window frame, wherein a latching groove (41) is provided in the latching member (4), and a latching hook (31) extending into the latching groove (41) is provided on the locking member (3), and the upward sliding of the transmission bar (2) causes the latching hook (31) to latch onto the upper part of the latching groove (41).

2. The latch structure of claim 1, wherein The upper part of the latch groove (41) is sloping, and the end of the locking hook (31) is pointed and cooperates with the sloping structure above the latch groove (41).

3. The latch structure of claim 1, wherein The locking member (4) has a guide groove (42), and the locking member (3) has a guide shaft (32) that extends into the guide groove (42) and slides therein.

4. The latch structure of claim 3, wherein The top side of the guide groove (42) is curved. The upward sliding of the transmission bar (2) causes the guide shaft (32) to slide along the curved guide groove (42) so that the push-pull sash moves laterally within the door and window frame.

5. The latch structure of claim 1, wherein the latch member is formed of a material having a hardness of 50 or more on the JIS-C hardness scale. It also includes a lock box (1) located in the sliding fan, in which a gear (11) is rotatably provided, and the transmission bar (2) has a rack (21) extending into the lock box (1) and meshing with the gear (11) on the side near the lock box (1).

6. The latch structure of claim 5, wherein The lock box (1) is provided with handles (6) fixed on the push-pull fan on both sides, and a square shaft (61) with a through gear (11) between adjacent handles (6) and capable of driving the gear (11) to rotate.

7. The latch structure of claim 5, wherein the latch member is formed of a material having a hardness of 50 or more on the JIS-C hardness scale. The transmission bar (2) has multiple locking slots (22), and the lock box (1) also has a sliding locking tongue (7). One side of the locking tongue (7) has a locking tongue block (71) that extends to the locking slots (22) to lock the transmission bar (2).

8. The latch structure of claim 7, wherein the latch member is configured to be moved from the first position to the second position by a user applying a force to the latch member. The lock box (1) is provided with a sliding rib (12), and the lock tongue (7) is provided with a sliding groove (72), which slides on the sliding rib (12).

9. The latch structure of claim 7, wherein the latch member is formed of a material having a hardness of 50 or more on the JIS Z 2241 scale. The lock box (1) is provided with a lock cylinder (5) extending to both ends to be connected to the handle (6). The lock cylinder (5) is provided with a paddle (51) for rotation. The lock tongue (7) is provided with a groove (73) below the paddle (51) for paddle to be paddled.

10. A door and window assembly, including the sliding sash locking structure according to any one of claims 1-9, further including a door and window frame (8), and a sliding sash (9) that slides in the door and window frame (8) by means of a door and window hardware system (91), wherein the upper and lower ends of the transmission bar (2) are respectively connected to the two sides of the door and window hardware system (91).

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