A room window sunshade adjustment device

Abstract

The application discloses a room window sunshade adjusting device and belongs to the field of window sunshade equipment. The adjusting device comprises a winding shaft and a sunshade curtain connected to the winding shaft through a spiral spring. The end of the sunshade curtain away from the winding shaft is fixedly connected with a horizontal plate. The two ends of the winding shaft are both sleeved with bearing seats. The bottom of each bearing seat is fixedly connected with a linear guide rod. The horizontal plate is provided with a locking mechanism connected with the linear guide rod. The locking mechanism comprises a rack fixedly connected to the inner side of the linear guide rod, locking plates slidingly inserted into the two ends of the horizontal plate and driving pieces for driving the locking plates to move close to or away from the rack. Through the meshing cooperation between the locking plates and the rack, the relative position of the linear bearing on the linear guide rod can be stably locked, the locking failure problem caused by the reduction of the friction force between the linear bearing and the linear guide rod is effectively avoided, the reliability and stability of the sunshade adjusting device are improved, and it is ensured that the sunshade curtain can stably stay at any position.

Description

Technical Field

[0001] This application relates to the technical field of window shading devices, specifically a room window shading adjustment device. Background Technology

[0002] In the fields of architectural decoration and home living, window shading and adjustment devices are essential equipment for controlling indoor light and improving living comfort, and their performance directly affects the user experience. Currently, there are many types of shading and adjustment devices on the market, among which manual pull-type sunshades are widely used due to their ease of operation and moderate cost.

[0003] To meet users' needs for sunshades to stop at any position, related technologies are constantly being improved. For example, Chinese utility model patent CN221373416U discloses a hand-operated, stop-and-go sunshade. This device uses the frictional resistance between a slotted linear bearing and a linear guide rod to counteract the winding force of a spiral spring, allowing the sunshade to remain in a locked position after being opened. Compared to traditional ratchet mechanisms, its overall structure is simpler, effectively reducing production costs, minimizing the possibility of component damage, and extending service life. Operationally, whether opening or closing the sunshade, it can be stopped at the desired position at any time. The adjustment process is convenient and noiseless, significantly improving user convenience.

[0004] However, this structure, which relies on friction between linear bearings and linear guide rods for positioning, has revealed certain limitations during long-term use. As the slotted linear bearings move back and forth on the linear guide rods, wear inevitably occurs between them. With increasing wear, if the frictional resistance drops below a level that fails to meet locking requirements, locking the relative position of the crossbars may fail, thus preventing the sunshade from stopping and starting as needed, impacting equipment reliability and user experience.

[0005] Therefore, this application provides a room window shading adjustment device to solve the above-mentioned problems. Utility Model Content

[0006] This application provides a room window sunshade adjustment device, which aims to solve the problems mentioned in the background art. The existing manual pull-type stop-and-go sunshade curtains rely on the friction between the linear bearing and the linear guide rod to achieve positioning. After long-term use, both are prone to wear, resulting in a decrease in frictional resistance. This leads to problems such as failure to lock the relative position of the crossbar and inability to achieve stop-and-go locking of the sunshade curtain.

[0007] To achieve the above objectives, this application provides the following technical solution: a room window sunshade adjustment device, including a winding shaft and a sunshade curtain connected to the winding shaft via a spiral spring. A horizontal plate is fixedly connected to one end of the sunshade curtain away from the winding shaft. Bearing seats for connection to a wall are fitted onto both ends of the winding shaft. A linear guide rod is fixedly connected to the bottom of the bearing seats. A linear bearing for fixed connection to the end of the horizontal plate is slidably fitted onto the linear guide rod. To ensure the stability of the relative position between the linear bearing and the linear guide rod, a locking mechanism connected to the linear guide rod is provided on the horizontal plate. The locking mechanism includes a rack fixedly connected to the inner side of the linear guide rod, locking plates slidably inserted into both ends of the horizontal plate for meshing with the rack, and a driving component for driving the locking plates to move closer to or away from the rack. When the position of the sunshade needs to be adjusted, the driving component drives the locking plate to move away from the rack, disengaging the two. At this time, the linear bearing can slide freely on the linear guide rod, thereby driving the horizontal plate and the sunshade to move up and down. When adjusted to the desired position, the driving component drives the locking plate to move closer to and mesh with the rack. The meshing force of the two restricts the sliding of the linear bearing on the linear guide rod, thereby locking the position of the horizontal plate and the sunshade.

[0008] Preferably, to facilitate the installation of the locking plate on the horizontal plate: both ends of the horizontal plate are provided with transverse grooves for fitting the locking plate, and the locking plate is slidably inserted into the transverse grooves. The transverse grooves provide a precise installation and sliding track for the locking plate, enabling the locking plate to slide stably on the horizontal plate, ensuring the accuracy and smoothness of the locking plate engaging or disengaging with the rack.

[0009] Preferably, the driving component includes a bidirectional screw rotatably inserted into the horizontal plate and extending into the horizontal groove, a worm gear fixedly fitted in the middle of the bidirectional screw, and a worm inserted into the horizontal plate and fixedly connected to the worm gear. One end of the worm passes through the front side of the horizontal plate and is fixedly connected to a knob. The inner end of the locking plate has a screw hole for fitting the bidirectional screw. The structure of the worm gear and worm drive combined with the bidirectional screw features smooth transmission and good self-locking properties, enabling precise control of the movement of the locking plate and ensuring more reliable engagement or disengagement between the locking plate and the rack.

[0010] Preferably, to prevent interference with the linear bearing's sliding motion on the linear guide rod: a groove is provided on the inner side of the linear guide rod corresponding to the end position of the horizontal plate, and the rack is fixedly connected within the groove. The groove provides installation space for the rack, allowing it to be fixed inside the linear guide rod without protruding from its surface. This avoids the rack obstructing the sliding of the linear bearing on the linear guide rod, ensuring smooth sliding of the linear bearing, ensuring the sunshade's adjustment process is undisturbed, and improving the smoothness of the device's operation.

[0011] Preferably, to facilitate the connection between the sunshade and the horizontal panel: the horizontal panel is arranged horizontally, and an installation groove for fitting the sunshade is provided at the end of the horizontal panel near the sunshade. The end of the sunshade near the horizontal panel is fixedly connected to the installation groove. The installation groove provides a stable installation position for the connection between the sunshade and the horizontal panel, making the connection between the sunshade and the horizontal panel more secure and reliable, and preventing the sunshade from falling off or loosening during use.

[0012] Preferably, a handle is fixedly connected to the end of the horizontal plate away from the sunshade. The handle provides the user with a convenient point of force, making it easier for the user to pull the horizontal plate to adjust the position of the sunshade, making the operation more effortless and convenient.

[0013] Preferably, a protective cover fixedly connected to the bearing seat is fitted onto the outer side of the take-up shaft. The bottom of the protective cover has an opening, and the end of the sunshade away from the take-up shaft passes through the opening. The protective cover effectively protects the take-up shaft and the spiral spring, preventing dust, impurities, etc., from entering the take-up shaft and the spiral spring, avoiding contamination and damage, and extending the service life of the device.

[0014] This application utilizes the meshing of a locking plate and a rack to stably lock the relative position of the linear bearing on the linear guide rod. This effectively avoids locking failure caused by reduced friction between the linear bearing and the linear guide rod, significantly improving the reliability and stability of the sunshade adjustment device. It ensures the sunshade can remain stably in any position, guaranteeing a superior user experience. Furthermore, this locking method features a reasonable structural design, is easy to operate, and will not cause additional interference to the overall operation of the device.

[0015] This application employs a worm gear and worm drive combined with a two-way screw structure, featuring smooth transmission and good self-locking properties. It can precisely control the movement of the locking plate, ensuring more reliable engagement or disengagement between the locking plate and the rack. Furthermore, operation is via a knob, making it simple and convenient. Users can easily lock and adjust the position of the sunshade, improving operational convenience and user experience. Attached Figure Description

[0016] Figure 1 A schematic diagram of a room window shading adjustment device;

[0017] Figure 2 for Figure 1 Enlarged view of the structural components of the locking mechanism;

[0018] Figure 3 This is a partial front view of the locking mechanism.

[0019] Figure 4 A schematic diagram of the drive component of the locking mechanism;

[0020] Figure 5 This is a schematic diagram of the internal structure of the protective shield.

[0021] In the picture:

[0022] 1. Rewinding shaft; 2. Sunshade curtain; 3. Horizontal plate; 31. Horizontal groove; 32. Mounting groove; 4. Bearing seat; 5. Linear guide rod; 51. Linear bearing; 52. Groove; 6. Locking mechanism; 61. Rack; 62. Locking plate; 63. Drive component; 631. Double-acting screw; 632. Worm gear; 633. Worm; 634. Knob; 7. Handle; 8. Protective cover. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0024] Example 1

[0025] This embodiment provides a room window shading adjustment device, such as... Figures 1-5As shown, the adjustment device includes a winding shaft 1 and a sunshade 2 connected to the winding shaft 1 by a spiral spring. A horizontal plate 3 is fixedly connected to the end of the sunshade 2 away from the winding shaft 1. Both ends of the winding shaft 1 are fitted with bearing seats 4 for connecting to the wall. A linear guide rod 5 is fixedly connected to the bottom of the bearing seat 4. A linear bearing 51 for fixed connection to the end of the horizontal plate 3 is slidably fitted on the linear guide rod 5. To ensure the stability of the relative position between the linear bearing 51 and the linear guide rod 5, a locking mechanism 6 connected to the linear guide rod 5 is provided on the horizontal plate 3. The locking mechanism 6 includes a rack 61 fixedly connected to the inner side of the linear guide rod 5, a locking plate 62 slidably inserted into both ends of the horizontal plate 3 for meshing with the rack 61, and a driving member 63 for driving the locking plate 62 to move closer to or away from the rack 61. The locking plate 62 and the rack 61 engage to stably lock the relative position of the linear bearing 51 on the linear guide rod 5, effectively preventing locking failure caused by reduced friction between the linear bearing 51 and the linear guide rod 5. This significantly improves the reliability and stability of the sunshade adjustment device, ensuring that the sunshade curtain 2 can remain stably in any position and guaranteeing the user experience. Furthermore, this locking method has a reasonable structural design, is easy to operate, and will not cause additional interference to the overall operation of the device. When the position of the sunshade curtain 2 needs to be adjusted, the driving component 63 drives the locking plate 62 to move away from the rack 61, disengaging them. At this time, the linear bearing 51 can slide freely on the linear guide rod 5, thereby driving the horizontal plate 3 and the sunshade curtain 2 to move up and down. When the desired position is reached, the driving component 63 drives the locking plate 62 to move closer to and engage with the rack 61. The meshing force of the two restricts the sliding of the linear bearing 51 on the linear guide rod 5, thus locking the position of the horizontal plate 3 and the sunshade curtain 2.

[0026] To facilitate the installation of the locking plate 62 on the horizontal plate 3, both ends of the horizontal plate 3 are provided with transverse grooves 31 for fitting the locking plate 62. The locking plate 62 is slidably inserted into the transverse grooves 31. The transverse grooves 31 provide a precise installation and sliding track for the locking plate 62, allowing it to slide stably on the horizontal plate 3, ensuring the accuracy and smoothness of engagement or disengagement between the locking plate 62 and the rack 61. Simultaneously, this structural design facilitates the installation and disassembly of the locking plate 62, reduces assembly difficulty, and is beneficial for later maintenance and replacement, improving the assembly efficiency and maintenance convenience of the device. The shape and size of the transverse grooves 31 are adapted to the locking plate 62. The transverse grooves 31 guide the movement direction of the locking plate 62, ensuring that the locking plate 62 can only move along the extension direction of the transverse grooves 31, thereby ensuring that the locking plate 62 can accurately engage or disengage with the rack 61.

[0027] The driving component 63 includes a bidirectional screw 631 rotatably inserted into the horizontal plate 3 and extending into the horizontal groove 31, a worm gear 632 fixedly fitted in the middle of the bidirectional screw 631, and a worm 633 inserted into the horizontal plate 3 and fixedly connected to the worm gear 632. One end of the worm 633 passes through the front side of the horizontal plate 3 and is fixedly connected to a knob 634. The inner end of the locking plate 62 has a screw hole for matching the bidirectional screw 631. The structure of the worm gear 632 and worm 633 driving the bidirectional screw 631 has the characteristics of smooth transmission and good self-locking, which can accurately control the movement of the locking plate 62 and ensure more reliable engagement or disengagement between the locking plate 62 and the rack 61. At the same time, the operation is simple and convenient through the knob 634, and the user can easily lock and adjust the position of the sunshade 2, improving the convenience of operation and user experience. When knob 634 is turned, the worm gear 633 rotates, and the worm gear 633 meshes with the worm wheel 632, which in turn drives the bidirectional screw 631 to rotate. Since the inner end of the locking plate 62 has a screw hole that matches the bidirectional screw 631, the rotation of the bidirectional screw 631 causes the two locking plates 62 to move towards or away from each other along the transverse groove 31. When knob 634 is rotated clockwise, the two locking plates 62 move closer together, disengaging from the rack 61 and releasing the lock; when knob 634 is rotated counterclockwise, the two locking plates 62 move further apart, meshing with the rack 61 and locking the lock.

[0028] To prevent interference with the sliding of the linear bearing 51 on the linear guide rod 5, a groove 52 is provided on the inner side of the linear guide rod 5 at the end position corresponding to the horizontal plate 3, and the rack 61 is fixedly connected in the groove 52. The groove 52 provides installation space for the rack 61, allowing it to be fixed inside the linear guide rod 5 without protruding from its surface. This prevents the rack 61 from obstructing the sliding of the linear bearing 51 on the linear guide rod 5, ensuring smooth sliding of the linear bearing 51, ensuring that the adjustment process of the sunshade 2 is not disturbed, and improving the smoothness of the device's operation. The rack 61 is fixedly connected in the groove 52. Because the groove 52 is located inside the linear guide rod 5 and its depth can accommodate the rack 61, the surface of the rack 61 does not exceed the inner surface of the linear guide rod 5. When the linear bearing 51 slides on the linear guide rod 5, it will not contact or collide with the rack 61, thus ensuring smooth sliding.

[0029] To facilitate the connection between the sunshade curtain 2 and the horizontal panel 3: the horizontal panel 3 is set horizontally, and an installation groove 32 for fitting the sunshade curtain 2 is opened at the end of the horizontal panel 3 near the sunshade curtain 2. The end of the sunshade curtain 2 near the horizontal panel 3 is fixedly connected to the installation groove 32. The installation groove 32 provides a stable installation position for the connection between the sunshade curtain 2 and the horizontal panel 3, making the connection between the sunshade curtain 2 and the horizontal panel 3 more secure and reliable, and preventing the sunshade curtain 2 from falling off or loosening during use. At the same time, this connection method facilitates the installation and replacement of the sunshade curtain 2, reduces the installation difficulty, and improves assembly efficiency. The end of the sunshade curtain 2 near the horizontal panel 3 is fixedly connected to the installation groove 32. The shape and size of the installation groove 32 are adapted to the end of the sunshade curtain 2, which can limit and fix the end of the sunshade curtain 2. The end of the sunshade curtain 2 is fixed in the installation groove 32 by fasteners (such as screws, glue, etc.), thereby achieving a stable connection between the sunshade curtain 2 and the horizontal panel 3.

[0030] A handle 7 is fixedly connected to the end of the horizontal plate 3 furthest from the sunshade 2. The handle 7 provides a convenient point of leverage for the user, allowing them to easily pull the horizontal plate 3 to adjust the position of the sunshade 2, making operation more effortless and convenient. Simultaneously, the handle 7 is ergonomically designed, enhancing user comfort during operation. By gripping the handle 7 and applying pulling or pushing force, the user moves the horizontal plate 3 up and down, which in turn causes the sunshade 2 to unfold or retract, thereby adjusting the position of the sunshade 2.

[0031] A protective cover 8, fixedly connected to the bearing seat 4, is fitted onto the outer side of the winding shaft 1. The bottom of the protective cover 8 has an opening, through which the end of the sunshade 2 furthest from the winding shaft 1 passes. The protective cover 8 effectively protects the winding shaft 1 and the spiral spring, preventing dust and impurities from entering and causing contamination and damage, thus extending the lifespan of the device. Simultaneously, the protective cover 8 enhances the overall aesthetics of the device, improving its appearance. The protective cover 8 is fitted onto the outer side of the winding shaft 1 and fixedly connected to the bearing seat 4. Its bottom opening provides a passage for the extension of the sunshade 2, allowing it to unfold and retract normally. The remaining parts of the protective cover 8 enclose the winding shaft 1 and the spiral spring, providing isolation and protection.

[0032] It should be noted that many of the standard parts used in this application are available on the market, while non-standard parts can be specially customized. The connection method used in this application is also a very common method in the mechanical field, and will not be described in detail here.

[0033] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A room window shading adjustment device, comprising a retractor (1) and a shading curtain (2) connected to the retractor (1) by a spiral spring, wherein a horizontal plate (3) is fixedly connected to one end of the shading curtain (2) away from the retractor (1), and bearing seats (4) for connecting to the wall are fitted at both ends of the retractor (1), and a linear guide rod (5) is fixedly connected to the bottom of the bearing seat (4), and a linear bearing (51) for fixedly connecting to the end of the horizontal plate (3) is slidably fitted on the linear guide rod (5); Its features are: The horizontal plate (3) is provided with a locking mechanism (6) connected to the linear guide rod (5). The locking mechanism (6) includes a rack (61) fixedly connected to the inner side of the linear guide rod (5), a locking plate (62) slidably inserted into both ends of the horizontal plate (3) for meshing with the rack (61), and a driving member (63) for driving the locking plate (62) to move closer to or away from the rack (61).

2. The room window shading adjustment device according to claim 1, characterized in that: Both ends of the horizontal plate (3) are provided with horizontal grooves (31) for fitting the locking plate (62), and the locking plate (62) is slidably inserted into the horizontal grooves (31).

3. The room window shading adjustment device according to claim 2, characterized in that: The driving component (63) includes a bidirectional screw (631) rotatably inserted into the horizontal plate (3) and extending into the horizontal groove (31), a worm gear (632) fixedly fitted in the middle of the bidirectional screw (631), and a worm (633) inserted into the horizontal plate (3) and fixedly connected to the worm gear (632). One end of the worm (633) passes through the front side of the horizontal plate (3) and is fixedly connected to a knob (634). The inner end of the locking plate (62) is provided with a screw hole for matching the bidirectional screw (631).

4. The room window shading adjustment device according to claim 1, characterized in that: The inner side of the linear guide rod (5) is provided with a groove (52) at the end position of the horizontal plate (3), and the rack (61) is fixedly connected in the groove (52).

5. The room window shading adjustment device according to claim 1, characterized in that: The horizontal plate (3) is arranged in a horizontal direction. The end of the horizontal plate (3) near the sunshade (2) is provided with an installation groove (32) for matching the sunshade (2). The end of the sunshade (2) near the horizontal plate (3) is fixedly connected in the installation groove (32).

6. The room window shading adjustment device according to claim 1, characterized in that: A handle (7) is fixedly connected to the end of the horizontal plate (3) away from the sunshade (2).

7. The room window shading adjustment device according to claim 1, characterized in that: The outer side of the take-up shaft (1) is fitted with a protective cover (8) that is fixedly connected to the bearing seat (4). The bottom of the protective cover (8) is provided with an opening, and the end of the sunshade (2) away from the take-up shaft (1) passes through the opening.

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