Anti-roll guide rail for electric fabric roller shutter

Abstract

The utility model relates to the technical field of fabric roller shutter sunshade equipment, in particular to an anti-roll guide rail for an electric fabric roller shutter. The anti-roll guide rail comprises an outer frame structure, a rail and a sliding rail. And the rail is clamped in the clamping groove of the outer frame structure. And the sliding rail is embedded in the slot of the track. The sliding rail is provided with a sliding groove used for being embedded into the side edge of the fabric roller shutter. A supporting table is arranged at the bottom of the sliding groove. The supporting table and the inner wall of the inserting groove form a buffering cavity in a surrounding mode. The supporting table is connected with an elastic supporting structure. The longitudinal direction of the elastic supporting structure is arranged in the extending direction of the sliding groove. The elastic supporting structure and the sliding groove are integrally formed. And the telescopic end of the elastic supporting structure is in contact with the inner wall of the slot. A baffle is arranged in the slot and located on the outer side of the buffer cavity, and a guide groove is defined by the baffle and the inner wall of the slot. According to the anti-roll guide rail for the electric fabric roller shutter, guiding and limiting of the fabric roller shutter are enhanced, the supporting effect on the fabric roller shutter is improved, and the smoothness of winding and unwinding of the fabric roller shutter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fabric rolling shutter sunshade devices, and particularly relates to a composite guide rail for an electric fabric rolling shutter. Background Art

[0002] An electric fabric rolling shutter is a widely used modern building external sunshade device. Its main feature is to achieve the automatic lifting and lowering of the fabric rolling shutter through an electric drive system, so as to achieve the purposes of sunshading, light adjustment, privacy protection, and energy conservation. Among them, the head end of the fabric rolling shutter is inserted into the drive shaft of the drive assembly through an upper buckle strip. The tail end of the fabric rolling shutter is clamped in the lower buckle strip groove of the bottom beam through a lower buckle strip. A rolling shutter side convex is arranged on the side edge of the fabric rolling shutter. The rolling shutter side convex is inserted into the track of the chute, and the fabric rolling shutter is lifted and lowered along the track of the chute under the drive of the drive assembly.

[0003] A linear support guide rail of an electric fabric rolling shutter disclosed in the Chinese patent CN218479775U authorized to the applicant for the utility model. Among them, an elastic support strip is arranged in the second chute of the composite guide rail of the linear support guide rail. By using the elastic support strip extending along the axial direction of the composite guide rail, a linear support is formed between the zipper slide rail and the composite guide rail, optimizing the point support structure of the steel wire spring in the first-generation product, and providing a more uniform tension for the fabric curtain in the horizontal direction.

[0004] However, the composite guide rail and the elastic support strip are integrally extrusion-molded. The bent structure of the elastic support strip makes there are technical difficulties in the processing technology. In order to reduce the demolding difficulty of the composite guide rail, the processing technology usually adopts a certain advance amount. In this way, for the elastic support strip, it is difficult to ensure the forming posture of the bent structure, which greatly affects the elastic effect of the elastic support strip. During actual use, the elastic support strip in the above composite guide rail is difficult to ensure the consistency of the forming posture, especially the consistency along the extending direction of the guide rail. As a result, the elastic support strips are deformed inconsistently under force, and the composite guide rail will tilt laterally, resulting in faults in the composite guide rail. The actual maintenance period is much earlier than the preset maintenance period, increasing the maintenance cost. Summary of the Invention

[0005] The purpose of the utility model is to provide a composite guide rail structure during the use of an electric fabric rolling shutter, so as to strengthen the guiding and limiting of the fabric rolling shutter, improve the supporting effect on the fabric rolling shutter, and enhance the smoothness of the retraction and extension of the fabric rolling shutter.

[0006] To achieve the above purpose, the utility model adopts the following scheme:

[0007] An anti-roll guide rail for an electric fabric rolling curtain, comprising an outer frame structure, a track and a slide rail. The track is clamped in a slot of the outer frame structure, the slide rail is embedded in a slot of the track, and a chute for embedding the side edge of the fabric rolling curtain is arranged on the slide rail. It is characterized in that:

[0008] A support platform is arranged at the bottom of the chute. The support platform and the inner wall of the slot surround to form a buffer chamber. An elastic support structure is connected to the support platform. The elastic support structure is located in the buffer chamber. The longitudinal direction of the elastic support structure is arranged along the extension direction of the chute. The elastic support structure is integrally formed with the chute. The telescopic end of the elastic support structure is in contact with the inner wall of the slot;

[0009] A baffle is arranged in the slot. The baffle is located outside the buffer chamber. The baffle and the inner wall of the slot surround to form a guide groove.

[0010] Wherein, when the elastic support structure is compressed, the baffle provides auxiliary support for the side direction of the elastic support structure outside the buffer chamber, which is beneficial to keeping the slide rail in a vertical state in the slot and avoiding the situation of the slide rail tilting in the slot.

[0011] Preferably, the elastic support structure includes a first elastic strip, a second elastic strip, a third elastic strip and a fourth elastic strip connected in sequence. The first elastic strip is connected to the support platform. The first elastic strip expands towards the outside of the slide rail. The second elastic strip and the first elastic strip are connected to form a first bending structure. The third elastic strip and the second elastic strip are connected to form a second bending structure. The fourth elastic strip and the third elastic strip are connected to form a third bending structure.

[0012] Preferably, the second elastic strip retracts towards the inside of the slide rail, the third elastic strip expands towards the outside of the slide rail, and the fourth elastic strip retracts towards the inside of the slide rail.

[0013] Wherein, the elastic support structure forms a continuous W-shaped bending structure through the first elastic strip, the second elastic strip, the third elastic strip and the fourth elastic strip connected in sequence. The W-shaped bending structure is integrated on the slide rail by using a connecting strip, which is beneficial to the integral molding of the elastic support structure and the slide rail, greatly reduces the processing difficulty of the composite guide rail, and provides a guiding for the compression tendency of the elastic support structure by means of the initial expansion direction of the connecting strip towards the outside of the slide rail, which is beneficial to the stability of the elastic support structure for buffering.

[0014] Preferably, rounded corners are provided at the outer sides of the bending parts of the first bending structure, the second bending structure and the third bending structure.

[0015] Preferably, arc grooves are provided at the inner sides of the bending parts of the first bending structure, the second bending structure and the third bending structure.

[0016] Preferably, the cross-sections of the first elastic strip, the second elastic strip, the third elastic strip, and the fourth elastic strip are all fusiform.

[0017] Preferably, the thicknesses of the first elastic strip, the second elastic strip, the third elastic strip, and the fourth elastic strip are all 0.6 mm - 0.8 mm.

[0018] Preferably, the radius of the arc groove is 0.3 mm - 0.5 mm.

[0019] Compared with the prior art, the anti-roll guide rail for an electric fabric rolling curtain provided by the present utility model has the following substantial features and improvements: The anti-roll guide rail for an electric fabric rolling curtain forms a buffer chamber between the slot and the slide rail, and an elastic support structure is arranged therein. The guide groove is used to provide limit guidance for the elastic support structure during the compression or reset process, which is beneficial to avoiding the longitudinal inclination of the elastic support structure. Furthermore, the stability of the elastic support structure applying a tension force to the fabric rolling curtain is further improved. By using the elastic support structure to provide stable support for the fabric rolling curtain, external force impacts can be effectively absorbed and alleviated, vibrations and noises during the operation of the fabric rolling curtain can be reduced, the smoothness and quietness of the operation can be improved, the guiding and limiting of the fabric rolling curtain are strengthened, the supporting effect on the fabric rolling curtain is improved, and the smoothness of the retraction and extension of the fabric rolling curtain is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. is a schematic assembly structure diagram of an anti-roll guide rail for an electric fabric rolling curtain in an embodiment of the present utility model.

[0021] Figure 2 FIG. is a schematic end face structure diagram of an anti-roll guide rail for an electric fabric rolling curtain in an embodiment of the present utility model.

[0022] Figure 3 is Figure 2 a schematic diagram of the anti-roll effect of the anti-roll guide rail for an electric fabric rolling curtain in

[0023] Figure 4 is Figure 2 a partial enlarged structure diagram of part A in

[0024] Reference numerals: 1, outer frame structure; 2, track; 3, slide rail; 4, card slot; 5, slot; 6, chute; 7, support platform; 8, elastic support structure; 9, buffer chamber; 10, baffle; 81, first elastic strip; 82, second elastic strip; 83, third elastic strip; 84, fourth elastic strip; 85, fillet; 86, arc groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following describes in detail the specific embodiments of the present utility model with reference to the drawings.

[0026] As Figures 1-4 shown, in the embodiment of the present utility model, an anti-roll guide rail for an electric fabric rolling curtain is proposed, aiming to strengthen the guiding and limiting of the fabric rolling curtain, improve the supporting effect on the fabric rolling curtain, and enhance the smoothness of the retraction and extension of the fabric rolling curtain.

[0027] In the anti-roll guide rail for an electric fabric rolling curtain proposed in the embodiment of the present utility model, an elastic support structure 8 is arranged in a buffer chamber 9 formed between a slot 5 and a slide rail 3. The guide groove is used to provide limiting guidance for the elastic support structure 8 during the compression or reset process, which is beneficial to avoiding the longitudinal inclination of the elastic support structure 8. Furthermore, the stability of the elastic support structure 8 applying a tension force to the fabric rolling curtain is further improved. By using the elastic support structure 8 to provide stable support for the fabric rolling curtain, external force impacts can be effectively absorbed and alleviated, vibrations and noises during the operation of the fabric rolling curtain can be reduced, the smoothness and quietness of the operation can be improved, the guiding and limiting of the fabric rolling curtain are strengthened, the supporting effect on the fabric rolling curtain is improved, and the smoothness of the retraction and extension of the fabric rolling curtain is enhanced.

[0028] As Figure 1 Combined with Figure 2 shown, an anti-roll guide rail for an electric fabric rolling curtain includes an outer frame structure 1, a track 2, and a slide rail 3. The track 2 is snap-fitted into a slot 4 of the outer frame structure 1. The slide rail 3 is embedded in a slot 5 of the track 2. A chute 6 for embedding the side edge of the fabric rolling curtain is arranged on the slide rail 3.

[0029] As Figure 2 shown, a support platform 7 is arranged at the bottom of the chute 6. The support platform 7 and the inner wall of the slot 5 surround to form a buffer chamber 9. An elastic support structure 8 is connected to the support platform 7. The elastic support structure 8 is located in the buffer chamber 9. The longitudinal direction of the elastic support structure 8 is arranged along the extension direction of the chute 6. The elastic support structure 8 is integrally formed with the chute 6. The telescopic end of the elastic support structure 8 is in contact with the inner wall of the slot 5.

[0030] As Figure 2 Combined with Figure 3 shown, a baffle 10 is arranged in the slot 5. The baffle 10 is located outside the buffer chamber 9. The baffle 10 and the inner wall of the slot 5 surround to form a guide groove. When the elastic support structure 8 is compressed, the baffle 10 provides auxiliary support for the side of the elastic support structure 8 outside the buffer chamber 9, which is beneficial to maintaining the vertical state of the slide rail 3 in the slot 5 and avoiding the roll-over of the slide rail 3 in the slot 5.

[0031] As Figure 2 Combined with Figure 4As shown, the elastic support structure 8 includes a first elastic strip 81, a second elastic strip 82, a third elastic strip 83, and a fourth elastic strip 84 that are connected in sequence. The first elastic strip 81 is connected to the support platform 7. The first elastic strip 81 expands towards the outside of the slide rail 3. The second elastic strip 82 and the first elastic strip 81 are connected to form a first bending structure. The third elastic strip 83 and the second elastic strip 82 are connected to form a second bending structure. The fourth elastic strip 84 and the third elastic strip 83 are connected to form a third bending structure.

[0032] As Figure 4 shown, the second elastic strip 82 retracts towards the inside of the slide rail 3. The third elastic strip 83 expands towards the outside of the slide rail 3. The fourth elastic strip 84 retracts towards the inside of the slide rail 3.

[0033] Among them, the elastic support structure 8 forms a continuous W-shaped bending structure through the first elastic strip 81, the second elastic strip 82, the third elastic strip 83, and the fourth elastic strip 84 that are connected in sequence. The W-shaped bending structure is integrated on the slide rail 3 by using a connecting strip, which is beneficial to the integral molding of the elastic support structure 8 and the slide rail 3, greatly reducing the processing difficulty of the composite guide rail. And with the initial expansion direction of the connecting strip towards the outside of the slide rail 3, it provides a guiding tendency for compression for the elastic support structure 8, which is beneficial to the stability of the elastic support structure 8 for buffering.

[0034] According to some preferred embodiments of the present invention, the thicknesses of the first elastic strip 81, the second elastic strip 82, the third elastic strip 83, and the fourth elastic strip 84 are all 0.6 mm - 0.8 mm. During actual use, the structural dimensions of the first elastic strip 81, the second elastic strip 82, the third elastic strip 83, and the fourth elastic strip 84 can also be adaptively adjusted according to the actual support needs of the fabric roller blind.

[0035] For example, the cross-sections of the first elastic strip 81, the second elastic strip 82, the third elastic strip 83, and the fourth elastic strip 84 are all spindle-shaped. The spindle-shaped structure is beneficial to the formation of a thinning structure at the bending part of the elastic support structure 8, providing a guiding tendency for compression for the elastic support structure 8.

[0036] In order to further reduce the forming difficulty of the elastic support structure 8 and improve the support effect of the elastic support structure 8, as Figure 4 shown, fillets 85 are provided at the outer sides of the bending parts of the first bending structure, the second bending structure, and the third bending structure for transition. Arc grooves 86 are provided at the inner sides of the bending parts of the first bending structure, the second bending structure, and the third bending structure. For example, the radius of the arc groove 86 is 0.3 mm - 0.5 mm, which is convenient for adapting to the minimum radius of the core-pulling body and meeting the requirements of the forming processing technology.

[0037] Among them, the arc-shaped groove 86 is used to form a thinning structure at the bending part, providing a directional guidance for the compression of the elastic support structure 8, thereby further improving the support effect on the fabric rolling curtain. In addition, the design of the arc-shaped groove 86 is also beneficial to placing the core-pulling body during the processing and forming of the elastic support structure 8, which not only further reduces the difficulty of demolding, but also helps the elastic support structure 8 to maintain the forming posture, thereby ensuring the consistency of the forming process of the elastic support structure 8.

[0038] The present utility model is not limited to the specific technical solutions described in the above embodiments. In addition to the above embodiments, the present utility model may also have other implementation manners. For those skilled in the art, any technical solutions formed by making any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An anti-roll guide rail for an electric fabric roller blind, comprising an outer frame structure (1), a track (2) and a slide rail (3), wherein the track (2) is engaged in a slot (4) of the outer frame structure (1), the slide rail (3) is embedded in a slot (5) of the track (2), and the slide rail (3) is provided with a slide groove (6) for embedding into the side edge of the fabric roller blind, characterized in that: A support platform (7) is provided at the bottom of the slide groove (6), and the support platform (7) and the inner wall of the slot (5) are surrounded to form a buffer chamber (9). An elastic support structure (8) is connected to the support platform (7), and the elastic support structure (8) is located in the buffer chamber (9). The longitudinal direction of the elastic support structure (8) is arranged along the extension direction of the slide groove (6). The elastic support structure (8) and the slide groove (6) are integrally formed, and the telescopic end of the elastic support structure (8) is in contact with the inner wall of the slot (5); A baffle (10) is provided in the slot (5), the baffle (10) is located outside the buffer chamber (9), and the baffle (10) and the inner wall of the slot (5) surround each other to form a guide groove.

2. The anti-roll guide rail for electric fabric roller blinds according to claim 1, characterized in that: The elastic support structure (8) comprises a first elastic strip (81), a second elastic strip (82), a third elastic strip (83) and a fourth elastic strip (84) which are connected in sequence, wherein the first elastic strip (81) is connected to the support platform (7), the first elastic strip (81) expands toward the outside of the slide rail (3), the second elastic strip (82) and the first elastic strip (81) are connected to form a first bending structure, the third elastic strip (83) and the second elastic strip (82) are connected to form a second bending structure, and the fourth elastic strip (84) and the third elastic strip (83) are connected to form a third bending structure.

3. The anti-roll guide rail for an electric fabric roller blind according to claim 2, characterized in that: The second elastic strip (82) is retracted toward the inner side of the slide rail (3), the third elastic strip (83) is expanded toward the outer side of the slide rail (3), and the fourth elastic strip (84) is retracted toward the inner side of the slide rail (3).

4. The anti-roll guide rail for an electric fabric roller blind according to claim 2, characterized in that: Rounded corners (85) are provided on the outer sides of the bending parts of the first bending structure, the second bending structure and the third bending structure for transition.

5. The anti-roll guide rail for an electric fabric roller blind according to claim 4, characterized in that: Arc grooves (86) are provided on the inner sides of the bending parts of the first bending structure, the second bending structure and the third bending structure.

6. The anti-roll guide rail for an electric fabric roller blind according to claim 2, characterized in that: The cross-sections of the first elastic strip (81), the second elastic strip (82), the third elastic strip (83) and the fourth elastic strip (84) are all shuttle-shaped.

7. The anti-roll guide rail for an electric fabric roller blind according to claim 2, characterized in that: The thickness of the first elastic strip (81), the second elastic strip (82), the third elastic strip (83) and the fourth elastic strip (84) are all 0.6 mm to 0.8 mm.

8. The anti-roll guide rail for an electric fabric roller blind according to claim 5, characterized in that: The radius of the arc groove (86) is 0.3 mm-0.5 mm.

Images