Elastic sheet type roller shutter head

Abstract

The utility model discloses an elastic sheet type roller shutter head, which belongs to the technical field of roller shutters, and comprises a reel pipe connecting plug, strip-shaped bearing bodies are distributed on the reel pipe connecting plug along the circumferential direction, the strip-shaped bearing bodies extend to the end part of the reel pipe connecting plug, and elastic sheets are arranged on the strip-shaped bearing bodies. The end portion of the elastic piece is provided with a chamfer, and the chamfer is used for enabling the reel pipe connecting plug to be inserted into the reel pipe conveniently. Bearing protrusions are arranged on the two side edges of the elastic piece, and when the reel pipe connecting plug is inserted into the reel pipe, the contact point of the elastic piece and the inner wall of the reel pipe is located at the bearing protrusions. The reel pipe connecting plug, the long-strip-shaped bearing body and the elastic piece are integrally formed. The elastic piece is additionally arranged on the reel pipe connecting plug of the roller shutter head, so that the roller shutter head can be matched with a reel pipe with a large size error, the adaptive capacity of the roller shutter head and the reel pipe is greatly improved, and the problem that the adaptive capacity of the reel pipe connecting plug is poor due to the fact that the size errors of reel pipes produced by different manufacturers are different is solved.

Description

Technical Field

[0001] This utility model relates to the field of roller blind technology, specifically to a roller blind head. Background Technology

[0002] Currently, the roller shutter head fittings on the market are compatible with rollers of the same diameter. However, due to the different dimensional errors of rollers produced by different manufacturers, when using the same model of roller fitting to match rollers produced by different manufacturers, the fit is either too tight or too loose. For example, a patent document with an authorization announcement date of 20230804 discloses a high-stability roller shutter head, including a housing and a connecting sleeve rotatably disposed on the outer wall of the housing; a bead chain gear and a transmission assembly are rotatably disposed inside the housing, one end of the bead chain gear has a bead chain groove adapted to the bead chain in the circumferential direction, and the other end has a drive gear; the transmission assembly includes a gear frame rotatably disposed inside the housing, one end of the gear frame has a plurality of transmission gears rotatably disposed on it, and the other end has a push part; one side of the transmission gear meshes with the drive gear, and the other side meshes with the internal gear ring on the inner sidewall of the housing; a first bearing is sleeved on the end of the bead chain gear near the bead chain groove, and the outer ring of the first bearing cooperates with the inner sidewall of the housing; the inner sidewall of the connecting sleeve has a stop part that cooperates with the push part, and the bead chain gear, through the transmission gear, causes the gear frame to rotate inside the housing, and the push part of the gear frame can drive the connecting sleeve to rotate. This utility model further includes a support shaft connected to one end of the bead chain gear, a second bearing sleeved on the support shaft, and the outer ring of the second bearing engaging with the inner wall of the connecting sleeve. This utility model further includes a limiting plate extending outward from the upper end of the housing, with the bead chain groove positioned below the limiting plate. This utility model further includes a bracket for mounting the control head, the lower end of which has a locking hole, and the upper end has a limiting groove; a mounting plate is connected to the end of the housing, the lower outer side of the mounting plate has a hook adapted to the locking hole, and the upper end has a limiting post adapted to the limiting groove; the hook engages in the locking hole, and the limiting post engages in the limiting groove, fixing the mounting plate to the bracket. This utility model further includes a waist-shaped hole on the bracket for mounting the bracket to a wall. A roller blind includes a control head and a tail plug; one end of the blind roller tube is inserted into a connecting sleeve, and the other end is inserted into the tail plug. The head 2 in the aforementioned patent document is the most commonly used head (roller tube connector) in the prior art. It suffers from poor compatibility due to variations in the dimensional tolerances of the roller tubes produced by different manufacturers. Therefore, based on these existing problems, the head (roller tube connector) of the roller shutter head is improved. Utility Model Content

[0003] The purpose of this invention is to provide a spring-loaded roller shutter control head that can adapt to roller tubes with large size errors.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A spring-loaded roller shutter control head includes a roller tube connector, on which elongated support bodies are distributed along the circumferential direction and extend to the end of the roller tube connector. The elongated support bodies are provided with spring-loaded springs.

[0006] Furthermore, the end of the spring is chamfered to facilitate the insertion of the coiled tube connector into the coiled tube.

[0007] Furthermore, the surface of the spring sheet has elastic grooves to improve its elasticity.

[0008] Furthermore, the spring sheet has bearing protrusions on both sides. When the coiled tube connector is inserted into the coiled tube, the contact point between the spring sheet and the inner wall of the coiled tube is located at the bearing protrusions.

[0009] Furthermore, the coiled tube connector, the elongated support body, and the spring are integrally formed.

[0010] Furthermore, a spring-loaded roller shutter control head also includes a mounting and fixing shaft, a pull-wire power gear ring, multiple transmission gears, a transmission sleeve, and a limiting shaft cap. One end of the mounting and fixing shaft is provided with a limiting baffle, and a trajectory gear is provided on the mounting and fixing shaft near the limiting baffle. The other end of the mounting and fixing shaft passes through the pull-wire power gear ring, the transmission sleeve, and the roller tube connector and is fixedly connected to the limiting shaft cap. Multiple transmission gears are distributed around the trajectory gear and mesh with it. The pull-wire power gear ring is located around the transmission gear and meshes with it. The transmission gears are fixedly installed at one end of the transmission sleeve and are spaced apart along the circumference of the transmission sleeve. One end of the transmission sleeve is inserted into the roller tube connector and engages with it.

[0011] Furthermore, a movable retaining ring is provided between the coiled tube connector and the wire pulling power gear ring.

[0012] Furthermore, the transmission sleeve has symmetrical snap-fit ​​interfaces on both sides of its sleeve surface, and the inner wall of the coiled tube connector has symmetrical snap-fit ​​protrusions located inside the snap-fit ​​interfaces.

[0013] Furthermore, one end of the transmission sleeve is provided with an annular fixing plate, and multiple fixing shafts are distributed on the annular fixing plate, with the transmission gears provided on the fixing shafts.

[0014] The beneficial effects of this utility model are as follows:

[0015] This application adds a spring clip to the tube connector of the roller shutter head, enabling the roller shutter head to adapt to tubes with larger dimensional errors, greatly improving the compatibility with tubes and solving the problem of poor compatibility of the tube connector caused by different dimensional errors of tubes produced by different manufacturers. Attached Figure Description

[0016] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort:

[0017] Figure 1 This is a schematic diagram of the blade structure of this utility model;

[0018] Figure 2 for Figure 1 The exploded view shown;

[0019] Figure 3 for Figure 2 The diagram shows the structure of the transmission sleeve.

[0020] Figure 4 for Figure 2 The diagram shows the structure of the coiled tube connector.

[0021] Figure 5 for Figure 4 The 3D diagram shown.

[0022] In the diagram: 1. Tube reel connector; 2. Fixed shaft; 3. Cable pull drive gear ring; 4. Transmission gear; 5. Transmission sleeve; 6. Limiting shaft cap; 7. Movable retaining ring; 8. Limiting baffle; 9. Track gear; 10. Snap-fit ​​interface; 11. Annular fixing plate; 12. Snap-fit ​​boss; 13. Long strip-shaped bearing body; 14. Spring piece; 15. Chamfer; 16. Elastic groove; 17. Bearing protrusion; 18. Fixed shaft. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper surface", "lower surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "forward", "reverse", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] like Figure 1 , 2 As shown, the spring-loaded roller shutter head includes a roller tube connector 1, a mounting and fixing shaft 2, a pull cable power gear ring 3, six transmission gears 4, a transmission sleeve 5, and a limiting shaft cap 6. One end of the mounting and fixing shaft 2 is provided with a limiting baffle 8, and a track gear 9 is provided on the mounting and fixing shaft 2 near the limiting baffle 8. The other end of the mounting and fixing shaft 2 passes through the pull cable power gear ring 3, the transmission sleeve 5, and the roller tube connector 1 and is fixedly connected to the limiting shaft cap 6. The six transmission gears 4 are distributed around the track gear 9 and mesh with the track gear 9. The pull cable power gear ring 3 is located around the transmission gear 4 and meshes with the transmission gear 4. The transmission gears 4 are fixedly installed on one end of the transmission sleeve 5 and are spaced apart along the circumference of the transmission sleeve 5. One end of the transmission sleeve 5 is inserted into the roller tube connector 1 and engages with the roller tube connector 1. A movable retaining ring 7 is provided between the coiled tube connector 1 and the wire-pulling power gear ring 3. The limiting baffle 8 and the movable retaining ring 7 are used to block the wire on the wire-pulling power gear ring 3. The limiting baffle 8 also limits the wire-pulling power gear ring 3. By pulling the wire, the wire-pulling power gear ring 3 drives the transmission gear 4. The transmission gear 4 moves along the track gear 9, thereby driving the coiled tube connector 1 to rotate through the transmission sleeve 5. The transmission components are encapsulated inside the coiled tube connector 1 and the wire-pulling power gear ring 3, resulting in a cleaner appearance and a more compact structure.

[0026] Specifically, such as Figure 3 , 4 As shown in Figure 5, the transmission sleeve 5 has symmetrical snap-fit ​​interfaces 10 on both sides of its sleeve surface. An annular fixing plate 11 is provided at one end of the transmission sleeve 5. Six fixing shafts 18 are distributed on the annular fixing plate 11. The transmission gear 4 is provided on the fixing shaft 18. The inner wall of the coiled tube connector 1 has symmetrical snap-fit ​​protrusions 12, which are located inside the snap-fit ​​interfaces 10.

[0027] The coiled tube connector 1 has elongated support bodies 13 distributed along the circumferential direction, and the elongated support bodies 13 extend to the end of the coiled tube connector 1. The elongated support bodies 13 are provided with spring pieces 14.

[0028] The end of the spring piece 14 is provided with a chamfer 15, which is used to facilitate the insertion of the coiled tube connector into the coiled tube.

[0029] The surface of the spring sheet 14 has an elastic groove 16, which is used to improve the elasticity of the spring sheet.

[0030] The spring piece 14 has bearing protrusions 17 on both sides. When the reel connector 1 is inserted into the reel, the contact point between the spring piece 14 and the inner wall of the reel is located at the bearing protrusions 17.

[0031] Working principle: When the reel connector is inserted into the reel, the contact point between the spring and the inner wall of the reel is located at the bearing protrusion. That is, the spring connects the reel connector and the reel. When the reel connector rotates, it drives the reel to rotate as well. The spring effectively prevents relative rotation between the reel connector and the reel, and there will be no slippage between them. This application adds a spring to the reel connector of the reel head, which enables the reel head to adapt to reels with larger size errors, greatly improving the compatibility with the reel and solving the problem of poor compatibility of the reel connector caused by different size errors of reels produced by different manufacturers.

[0032] Furthermore, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of those different embodiments or examples, without contradiction. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A pop-up blind head comprising a tube spigot, characterised in that: The pipe joint is provided with strip-shaped carriers along the circumferential direction, and the strip-shaped carriers extend to the end of the pipe joint, and the strip-shaped carriers are provided with elastic sheets.

2. The slat curtain head of claim 1, wherein: The end of the elastic sheet is provided with a chamfer, which facilitates the insertion of the pipe joint into the pipe.

3. The sheeting head of claim 1, wherein: The surface of the elastic sheet is provided with elastic grooves, which improve the elasticity of the elastic sheet.

4. The slat curtain head of claim 1, wherein: The two side edges of the elastic sheet are provided with bearing protrusions, and the contact points between the elastic sheet and the inner wall of the pipe are located at the bearing protrusions when the pipe joint is inserted into the pipe.

5. The slat curtain head of claim 1, wherein: The pipe joint, the strip-shaped carriers and the elastic sheets are integrally formed.

6. The sheeting head of any of claims 1-5, wherein: The installation fixing shaft is provided with a limiting baffle at one end, a track gear is arranged on the installation fixing shaft near the limiting baffle, the other end of the installation fixing shaft is fixedly connected with the limiting shaft cap through the pull wire power gear, a plurality of transmission gears are arranged on the periphery of the track gear and engaged with the track gear, the pull wire power gear is arranged on the periphery of the transmission gears and engaged with the transmission gears, the transmission gears are fixedly installed on one end of the transmission sleeve and are arranged at intervals along the circumferential direction of the transmission sleeve, one end of the transmission sleeve is inserted into the pipe joint and is clamped with the pipe joint.

7. The sheeting head of claim 6, wherein: The pipe joint and the pull wire power gear are provided with a movable check ring.

8. The sheeting head of claim 7, wherein: The transmission sleeve is provided with symmetric clamping interfaces on the two side walls of the sleeve surface, the inner wall surface of the pipe joint is provided with symmetric clamping bosses, and the clamping bosses are located in the clamping interfaces.

9. The sheeting head of claim 7, wherein: One end of the transmission sleeve is provided with an annular fixing plate, a plurality of fixing shafts are arranged on the annular fixing plate, and the transmission gears are arranged on the fixing shafts.

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