Quickly-mounted main bearing seat for bead-free roller shutter device

Abstract

The utility model discloses a quick installation main bearing for a bead-free roller shutter device, the quick installation main bearing for the bead-free roller shutter device comprises a main bearing and a rotating seat, the main bearing is provided with a telescopic or non-telescopic connecting piece, the connecting piece is uniformly provided with a plurality of first connecting parts by taking a circle point as an axis, and the first connecting parts are connected with the rotating seat. A plurality of first connecting parts are arranged on the rotating seat and penetrate through the rotating seat, intervals enabling the first connecting parts to contract inwards are reserved among the first connecting parts, and first retaining parts are arranged on the outer walls of the first connecting parts and buckled on the rotating seat. The connecting piece and the rotating seat can be fixedly connected through the first connecting part without a fastener, so that the assembly efficiency is improved; through the telescopic or non-telescopic connecting piece, different installation environments of the reel pipe are adapted, and the product adaptability and flexibility are improved; and direct contact and friction between the connecting piece and the rotating seat are avoided through the bearing, noise is remarkably reduced, and the use experience degree of the product is improved.

Description

Technical Field

[0001] This utility model relates to the field of roller blind equipment technology, and in particular to a quick-installation main support for a beadless roller blind device. Background Technology

[0002] Existing roller blind devices consist of a roller tube, a curtain wound around the roller tube, and rotating seats at both ends of the roller tube. The device drives the curtain to roll up and down via the roller tube. During use, users typically control the curtain's raising and lowering manually or through other means to position it in the desired location, while the transmission mechanism within the roller tube ensures the curtain remains stably in the designated position.

[0003] At both ends of the roller blind assembly, there are usually main bearing seats. These main bearing seats are responsible for fixing the roller blind assembly to a wall or other object. Each main bearing seat has a rotating seat, which is inserted into one end of the roller blind assembly. The rotating seat is also connected to the transmission mechanism at the other end of the roller blind assembly. The connection between the two usually relies on fasteners such as pins, screws, or fixing nails. However, this fixing method is not only cumbersome, but also significantly reduces assembly efficiency when dealing with smaller roller blind assemblies, thus increasing production costs. Therefore, the applicant has made a beneficial design and found a solution to the above problems. The technical solution described below arose in this context. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the design proposed in the background art and to provide a product that improves assembly efficiency, has good adaptability, and enhances the product experience.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A quick-installation main support for a beadless roller blind device includes a main support and a rotating seat. The main support is provided with a retractable or non-retractable connector. The connector has a plurality of first connecting parts evenly distributed around a central point and passing through the rotating seat. A gap is left between the plurality of first connecting parts to allow them to retract inward. The outer wall of the first connecting part is provided with a first anti-reverse part and is pressed against the rotating seat, so that a structure is formed between the connector and the first anti-reverse part to prevent the connector from moving. The rotating seat is fixed with a bearing and is sleeved on the connector.

[0007] Preferably, the connector is provided with a detachable transmission component, and the transmission component is provided with a plurality of second connecting parts evenly distributed around the dot as the axis. A gap is left between the plurality of second connecting parts to allow them to contract inward. The outer wall of the entrance of the second connecting part is provided with a protrusion, and the protrusion is provided with a second inclined surface.

[0008] Preferably, the rotating seat has a first through hole through which the first connecting part passes, the entrance of the first through hole has a flared part, the first connecting part has a first inclined surface corresponding to the flared part, and the rotating seat has a groove for accommodating the connecting part.

[0009] Preferably, the structure that prevents the connector from shifting is configured as a sink.

[0010] Preferably, the inner wall of the connector is provided with a plurality of equally spaced fixing grooves evenly distributed around a dot as the axis, and a limiting groove is provided between two fixing grooves. The connector is provided with a second through hole for the second connecting part, and inclined guide surfaces are provided at both ends of the second through hole. When the connector is configured to be telescopic, the inner wall of the fixing groove is provided with a second anti-reverse part.

[0011] Preferably, the main bearing seat is further provided with a bent extension and embedded in a fixing groove.

[0012] Preferably, the main bearing is provided with a connecting rod and is slidably disposed within the connector. The outer wall of the connecting rod is provided with a fixing block corresponding to the fixing groove. The connecting rod is provided with a third anti-retraction part and a blind hole. The blind hole is provided with a spring and acts on the connector, so that the third anti-retraction part and the second anti-retraction part abut against each other. The connecting rod is provided with a retaining ring and abuts against the main bearing. One end of the retaining ring is provided with several protrusions.

[0013] Preferably, the main bearing is provided with a groove for accommodating the protrusion.

[0014] Preferably, the inner wall of the rotating seat is provided with a plurality of ribs, which abut against the outer ring of the bearing.

[0015] Preferably, the main bearing is provided with a mounting part, and the mounting part is provided with a plurality of mounting holes.

[0016] Beneficial effects:

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] (1) In this utility model, the connector only needs to be inserted into the rotating seat, and then a certain force is applied to the connector so that the first connecting part passes through the rotating seat under pressure until the first stop part is tightly attached to the end face of the rotating seat or a click is heard. At this time, it indicates that the connector and the rotating seat have been connected. This design does not require the use of fasteners, realizes a fast and simple assembly process, significantly improves assembly efficiency, and thus effectively reduces production costs.

[0019] (2) In this utility model, when the connector is telescopic, when it is necessary to remove the coiled tube, only a pushing force needs to be applied to the coiled tube to drive the connector and the rotating seat to move towards the main bearing seat. This can increase the distance between the two connectors and make it easier to remove the coiled tube from the main bearing seat. Conversely, if the connector is not telescopic, this design is more suitable for coiled tubes that are longer and heavier, or for installation environments where the main bearing seat needs to be freely adjusted according to the length of the coiled tube. When disassembling the coiled tube, the main bearing seat at one end of the coiled tube needs to be removed first. With this design, this application has better adaptability and flexibility.

[0020] (3) In view of the fact that both the connector and the rotating seat are made of plastic, during long-term use, friction will be generated between the two due to continuous rotation, resulting in the formation of plastic debris. These debris will cause noise when the connector rotates. To solve this problem, this application uses a bearing to enable the connector to rotate smoothly around the bearing as the axis, ensuring that the connector and the rotating seat are on the same axis, effectively avoiding direct contact and friction between the connector and the rotating seat, thereby significantly reducing the generation of noise and improving the overall user experience comfort and product durability. Attached Figure Description

[0021] Figure 1 This is a side cross-sectional view of the connecting member of the main support of the quick-installation device for a beadless roller blind according to the present invention when it is non-extendable.

[0022] Figure 2 This utility model Figure 1 A partial enlarged view A of a quick-installation main support for a beadless roller blind device;

[0023] Figure 3 This is an exploded view of the main support connector of the quick-installation device for a beadless roller blind according to this utility model when it is non-extendable.

[0024] Figure 4 This is a side cross-sectional view of the connector of the main support for the quick-installation main bearing seat of the present invention, which is retractable.

[0025] Figure 5 This utility model Figure 4 A partial enlarged view (B) of a quick-installation main support for a beadless roller blind device;

[0026] Figure 6 This is an exploded view of the retractable connector of the main support for a quick-installation device for a beadless roller blind according to this utility model.

[0027] Figure 7 This is a schematic diagram of the main support structure for a quick-installation device for a beadless roller blind according to this utility model;

[0028] The correspondence between the labels and component names in the attached figures is as follows:

[0029] Reference numerals: 1. Main bearing; 2. Rotary seat; 3. Connecting component; 4. Bearing; 5. Transmission component; 6. Connecting rod; 7. Spring;

[0030] 11. Extension; 12. Groove; 13. Mounting part; 14. Mounting hole;

[0031] 21. First through hole; 22. Flared section; 23. Countersunk groove; 24. Rib;

[0032] 31. First connecting part; 32. First anti-reverse part; 33. First inclined surface; 34. Fixing groove; 35. Second through hole;

[0033] 341. Second stop part; 342. Limiting groove;

[0034] 351. Guiding surface;

[0035] 51. Second connecting part; 52. Protrusion; 53. Second inclined surface;

[0036] 61. Fixing block; 62. Third anti-reverse part; 63. Blind hole; 64. Retaining ring; 65. Protrusion. Detailed Implementation

[0037] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, 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.

[0038] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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 this utility model.

[0039] In this embodiment of the invention, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0040] Reference example Figures 1 to 7A quick-installation main support for a beadless roller blind device includes a main support 1 and a rotating seat 2. The main support 1 is provided with a retractable or non-retractable connector 3. The connector 3 has a plurality of first connecting parts 31 evenly distributed around a central point and passing through the rotating seat 2. A gap is left between the plurality of first connecting parts 31 to allow them to retract inward. The outer wall of the first connecting part 31 is provided with a first anti-retraction part 32, which is pressed against the rotating seat 2, so that the connector 3 and the first anti-retraction part 32 form a structure that prevents the rotating seat 2 from detaching. The rotating seat 2 is fixed with a bearing 4 and sleeved on the connector 3. Simply insert the connector 3 into the rotating seat 2 and then apply a certain force to the connector 3 so that the first connecting parts 31 pass through the rotating seat 2 under pressure until the first anti-retraction part 32 is tightly attached to the end face of the rotating seat 2 or a click is heard. At this time, it indicates that the connector 3 and the rotating seat 2 have been connected. This design does not require the use of fasteners, realizes a quick and simple assembly process, significantly improves assembly efficiency, and thus effectively reduces production costs.

[0041] It is worth mentioning that the connector 3 is provided with a detachable transmission component 5. The transmission component 5 is provided with several second connecting parts 51 evenly distributed around the dot as the axis. There is a gap between the multiple second connecting parts 51 to allow them to retract inward. The outer wall of the entrance of the second connecting part 51 is provided with a protrusion 52. The protrusion 52 is provided with a second inclined surface 53. The transmission component 5 is connected to the transmission mechanism. Therefore, one end of the tube does not need the transmission component 5. The second inclined surface 53 reduces the friction with the guide surface 351, allowing the second stop part 341 to retract smoothly, making the connection between the transmission component 5 and the connector 3 smoother.

[0042] It is worth mentioning that the rotating base 2 is provided with a first through hole 21 through which the first connecting part 31 passes. The entrance of the first through hole 21 is provided with a flared part 22. The first connecting part 31 is provided with a first inclined surface 33 corresponding to the flared part 22. The rotating base 2 is provided with a groove 23 for accommodating the connector 3. The flared part 22 guides the first connecting part 31 to shrink towards the axis of the connector 3, so that it shrinks to the diameter that can pass through the first through hole 21. The first inclined surface 33 reduces the friction with the flared part 22, allowing the first connecting part 31 to shrink smoothly inward, making the connection between the connector 3 and the rotating base 2 smoother.

[0043] It is worth mentioning that the structure that prevents the connector 3 from moving is set as a groove 23. The groove 23 restricts the first connecting part 31 from continuing to move forward, thereby preventing the connector 3 from moving a large amount. When it is necessary to disassemble the connection between the connector 3 and the rotating seat 2, all the first stop parts 31 are removed from the end face of the rotating seat 2 and all the first stop parts 31 are retracted by disassembly tools (not shown) or other means, thereby detaching the connection with the rotating seat 2.

[0044] It is worth mentioning that the inner wall of the connector 3 is evenly distributed with several equally spaced fixing grooves 34 around the dot as the axis. A limiting groove 342 is provided between two fixing grooves 34. The connector 3 is provided with a second through hole 35 for the second connecting part 51. The two ends of the second through hole 35 are provided with inclined guide surfaces 351. When the connector 3 is set to be telescopic, the inner wall of the fixing groove 34 is provided with a second anti-retraction part 341. The guide surface 351 facilitates the protrusion 52 to enter the second through hole 35. At the same time, a pushing force is applied to the transmission part 5 in the opposite direction. The guide surface 351 also makes the second connecting part 51 receive a squeezing force in the axial direction, causing it to shrink to the diameter that can be separated from the second through hole 35, thereby facilitating the rapid separation of the transmission part 5 from the connector 3. The second anti-retraction part 341 restricts the range of motion of the connecting rod 6. The limiting groove 342 is used for various types and shapes of main bearing seats 1, improving adaptability.

[0045] It is worth mentioning that the main bearing 1 is also provided with a bent extension 11 and embedded in the fixing groove 34. When the extension 11 is embedded in the fixing groove 34, the connector 3 is in a non-extendable state. This design is more suitable for long and heavy coiled pipes, or for installation environments where the main bearing 1 needs to be freely adjusted according to the length of the coiled pipe. When disassembling the coiled pipe, the main bearing 1 at one end of the coiled pipe needs to be removed first. With this design, this application has good adaptability and flexibility.

[0046] It is worth mentioning that the main bearing 1 is provided with a connecting rod 6, which is slidably disposed in the connecting member 3. The outer wall of the connecting rod 6 is provided with a fixing block 61 corresponding to the fixing groove 34. The connecting rod 6 is provided with a third anti-retraction part 62 and a blind hole 63. The blind hole 63 is provided with a spring 7, which acts on the connecting member 3, so that the third anti-retraction part 62 and the second anti-retraction part 341 abut against each other. The connecting rod 6 is provided with a retaining ring 64, which abuts against the main bearing 1. One end of the retaining ring 64 is provided with several protrusions 65. When the connecting member 3 is telescopic, when it is necessary to remove the coil, only a pushing force needs to be applied to the coil to make the connecting rod 6 move towards the first connecting part 31. The spring 7 is compressed and stores energy, thereby driving the connecting member 3 and the rotating seat 2 to move towards the main bearing 1. This can increase the distance between the two connecting members 3, making it easier to remove the coil from the main bearing 1.

[0047] It is worth mentioning that the main bearing 1 is provided with a groove 12 to accommodate the protrusion 65. When the spring 7 releases its elastic force, the retaining ring 64 and the main bearing 1 abut against each other, the protrusion 65 is tightly embedded in the groove 12, and the side walls of the two abut against each other, thereby preventing the connecting rod 6 from rotating synchronously with the connecting piece 3.

[0048] It is worth mentioning that the inner wall of the rotating seat 2 is provided with several ribs 24, which abut against the outer ring of the bearing 4. The ribs 24 are used to limit the bearing 4. The bearing 4 is a ball bearing 4. The bearing 4 contacts the end face of the connector 3. Since both the connector 3 and the rotating seat 2 are made of plastic, friction will occur between them during long-term use due to continuous rotation, resulting in the formation of plastic debris. These debris will cause noise when the connector 3 rotates. To solve this problem, this application uses the bearing 4 to enable the connector 3 to rotate smoothly around the bearing 4 as the axis, ensuring that the connector 3 and the rotating seat 2 are on the same axis. This effectively avoids direct contact and friction between the connector 3 and the rotating seat 2, thereby significantly reducing noise generation and improving the overall user experience comfort and product durability.

[0049] It is worth mentioning that the main support 1 is provided with a mounting part 13, and the mounting part 13 is provided with a number of mounting holes 14, through which the main support 1 is fixed to the wall or other objects.

[0050] The above design scheme can improve the product's assembly efficiency, adaptability, and enhance the user experience.

[0051] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A quick-installation main support for a beadless roller blind device, comprising a main support (1) and a rotating base (2), characterized in that: The main support (1) is provided with a retractable or non-retractable connector (3). The connector (3) is provided with a plurality of first connecting parts (31) evenly distributed around the dot as the axis and passes through the rotating seat (2). A gap is left between the plurality of first connecting parts (31) to allow them to retract inward. The outer wall of the first connecting part (31) is provided with a first anti-retraction part (32) and is pressed against the rotating seat (2) so that the connector (3) and the first anti-retraction part (32) form a structure that prevents the rotating seat (2) from disengaging. The rotating seat (2) is fixedly provided with a bearing (4) and is sleeved on the connector (3).

2. The quick mount main carrier bracket for a beadless roller shade assembly of claim 1, wherein: The connector (3) is provided with a detachable transmission component (5). The transmission component (5) is provided with a plurality of second connecting parts (51) evenly distributed around the dot as the axis. A gap is left between the plurality of second connecting parts (51) to allow them to contract inward. The outer wall of the entrance of the second connecting part (51) is provided with a protrusion (52). The protrusion (52) is provided with a second inclined surface (53).

3. The quick mount main carrier for a beadless roller shade assembly of claim 1, wherein: The rotating seat (2) is provided with a first through hole (21) through which the first connecting part (31) passes. The entrance of the first through hole (21) is provided with a flared part (22). The first connecting part (31) is provided with a first inclined surface (33) corresponding to the flared part (22). The rotating seat (2) is provided with a groove (23) for accommodating the connecting piece (3).

4. The quick mount main carrier for a beadless roller shade assembly of claim 3, wherein: The structure that prevents the connector (3) from moving is set as a sink (23).

5. The quick mount main carrier for a beadless roller shade assembly of claim 2, wherein: The inner wall of the connector (3) is provided with a number of equally spaced fixing grooves (34) evenly distributed around a dot. A limiting groove (342) is provided between two fixing grooves (34). The connector (3) is provided with a second through hole (35) for the second connecting part (51). The two ends of the second through hole (35) are provided with inclined guide surfaces (351). When the connector (3) is set to be telescopic, the inner wall of the fixing groove (34) is provided with a second anti-reverse part (341).

6. The quick mount main carrier for a beadless roller shade assembly of claim 5, wherein: The main bearing (1) is also provided with a bent extension (11) and embedded in a fixing groove (34).

7. The quick mount main carrier for a beadless roller shade assembly of claim 5, wherein: The main bearing (1) is provided with a connecting rod (6) and is slidably disposed in the connector (3). The outer wall of the connecting rod (6) is provided with a fixing block (61) corresponding to the fixing groove (34). The connecting rod (6) is provided with a third anti-retraction part (62). The connecting rod (6) is provided with a blind hole (63). The blind hole (63) is provided with a spring (7) and acts on the connector (3) so that the third anti-retraction part (62) and the second anti-retraction part (341) abut against each other. The connecting rod (6) is provided with a retaining ring (64) and abuts against the main bearing (1). One end of the retaining ring (64) is provided with several protrusions (65).

8. The quick mount head carrier for a beadless roller shade assembly of claim 7, wherein: The main bearing (1) is provided with a groove (12) for accommodating the protrusion (65).

9. The quick mount main carrier for a beadless roller shade assembly of claim 1, wherein: The inner wall of the rotating seat (2) is provided with several ribs (24) and abuts against the outer ring of the bearing (4).

10. The quick mount main carrier for a beadless roller shade assembly of claim 1, wherein: The main bearing (1) is provided with a mounting part (13), and the mounting part (13) is provided with a plurality of mounting holes (14).

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