Elastic force adjusting system for invisible screen window reel

Abstract

The utility model discloses an elastic force adjusting system used for an invisible screen window reel, which comprises a reel assembly comprising a shaft rod and a main shaft head arranged on one side of the shaft rod; the screen box plug is in coupling connection with the reel assembly, the screen box plug is provided with an adjusting piece and a limiting piece, and the limiting piece is located on one side of the adjusting piece and abuts against the adjusting piece; wherein the main shaft head is provided with a coil spring assembly, the adjusting piece is connected with the coil spring assembly in a coupling mode, the rebound torsion of the main shaft head is adjusted through movement of the adjusting piece on the screen box plug, and the limiting piece resets the rebound torsion of the main shaft head under the action of external force applied by the adjusting piece. According to the elastic force adjusting system for the invisible screen window reel, the structure is simple, the adjusting mode that a spring is arranged in the reel is replaced with the coil spring, then the adjusting piece is matched with the positioning spiral tooth part to achieve the one-way torsion adjusting mode, and finally the limiting piece is subjected to external force applied by the adjusting piece, so that the elastic force is adjusted. And the springback torsion of the spindle head is reset.

Description

Technical Field

[0001] The utility model relates to the field of door and window hardware accessories, in particular to an elastic force adjustment system for an invisible screen window reel. Background Art

[0002] Invisible screens are windows with automatically retractable screens. They are primarily used for ventilation and mosquito control. The frame is tightly attached to the window frame. When in use, the screen is pulled down, and when not in use, the screen automatically retracts into the mesh box. They take up very little space and offer a strong seal, blending seamlessly with high-end home decor. Roll-up screens work by reeling in the screen.

[0003] The existing roller regulator paired with the screen window has a complex structure and is inconvenient to install in terms of adjusting the tension. The old adjustment system is that the screen box blocks the torsion spring inside the roller to adjust the rebound torque. Now a regulator is proposed that uses a coil spring to adjust the torque and is simple to adjust. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an elastic force adjustment system for an invisible screen window roller, which is used for the current needs of the general public.

[0005] The purpose of this utility model can be achieved through the following technical solutions:

[0006] A spring force adjustment system for an invisible screen window roller, comprising:

[0007] A reel assembly, comprising a shaft and a spindle head located on one side of the shaft;

[0008] a yarn box plug coupled with the reel assembly, the yarn box plug being provided with an adjusting member and a limiting member, one end of the adjusting member being connected with the reel assembly, and the other end being coupled with the yarn box plug, the limiting member being located on one side of the adjusting member and pressing against the adjusting member;

[0009] Among them, the main shaft head is provided with a coil spring assembly, which is coupled to the coil spring assembly by the adjusting part. The rebound torque of the main shaft head is adjusted by the movement of the adjusting part on the yarn box plug, and the limiting part is subjected to the external force applied by the adjusting part to reset the rebound torque of the main shaft head.

[0010] Furthermore, the spindle head is installed with a coil spring assembly through a shaft disk, and the coil spring assembly is located in a coil spring cavity in the shaft disk. The outer end of the coil spring assembly is pulled and rotated by the connecting head in the coil spring cavity, while the inner end on the other side is pulled by the adjusting member.

[0011] Furthermore, the yarn box plug is provided with a covering piece adapted to the shaft disc, the covering piece is located on the first and second fitting parts of the yarn box plug, and the adjusting piece is adapted to the adjusting piece through the matching part.

[0012] Furthermore, the spindle head is separately connected to the shaft rod and is clamped to the shaft rod by the connecting portion.

[0013] Furthermore, the adjusting part is engaged with the yarn box stopper, and the adjusting part includes a toothing portion and a connecting rod extending from the toothing portion, the connecting rod is connected to the coil spring assembly, the inner wall surface of the yarn box stopper has a spiral tooth portion that is adapted to the toothing portion, the spiral tooth portion has an axial hole that passes through the inner wall surface of the yarn box stopper, and the toothing portion has a central control portion installed on the axial hole.

[0014] Furthermore, the yarn box stopper fixes the limiting member via a column, the column is fixed to the limiting member by a fastener in cooperation with an elastic member, and the column is located on one side of the spiral tooth portion.

[0015] Furthermore, the yarn box plug is further provided with a movable mounting piece, and the mounting piece is located on a slideway on the yarn box plug and is engaged and slidable.

[0016] Beneficial effects of the utility model:

[0017] The utility model provides an elastic force adjustment system for the invisible screen window roller. The product has a simple structure and replaces the adjustment method of the built-in spring of the roller with a coil spring. Secondly, the adjustment member cooperates with the positioning spiral tooth portion to realize a one-way adjustment of the torque. Finally, the limit member is subjected to the external force applied by the adjustment member to reset the rebound torque of the main shaft head. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is one of the exploded structural diagrams of the spindle head and yarn box plug in the utility model;

[0021] Figure 3 This is the second schematic diagram of the explosion structure of the main shaft head and the yarn box plug in the utility model.

[0022] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] according to Figure 1-Figure 3 As shown,

[0025] A spring force adjustment system for an invisible screen roller.

[0026] The reel assembly 1 includes a shaft 11 and a main shaft head 12 located on one side of the shaft 11. A secondary shaft head 13 opposite to the main shaft head 12 is used to assist the shaft 11 in fixed-axis rotation.

[0027] The yarn box plug 2 is coupled to the reel assembly 1 and is provided with an adjusting member 3 and a limiting member 4. One end of the adjusting member 3 is connected to the reel assembly 1, and the other end is coupled to the yarn box plug 2. The limiting member 4 is located on one side of the adjusting member 3 and presses the adjusting member 3.

[0028] Among them, the spindle head 12 is provided with a coil spring assembly 5, which is coupled to the coil spring assembly 5 by the adjusting part 3. The rebound torque of the spindle head 12 is adjusted by the movement of the adjusting part 3 on the yarn box stopper 2, and the limiting part 4 is subjected to the external force applied by the adjusting part 3 to reset the rebound torque of the spindle head 12.

[0029] Specifically, the spindle head 12 is installed with the coil spring assembly 5 through the shaft disk 121. The coil spring assembly 5 is located in the coil spring cavity 400 in the shaft disk 121. The outer end of the coil spring assembly 5 is pulled and rotated by the connecting head in the coil spring cavity, while the inner end on the other side is pulled by the adjusting member 3.

[0030] Specifically, the shaft disc 121 is covered by a covering member 122, and the covering member 122 is adapted to the yarn box plug 2. The yarn box plug 2 is provided with a fitting portion 1 201 and a fitting portion 2 202. The covering member 122 is directionally fixed by the fitting portion 1 201 and the fitting portion 2 202. In this structure, the covering member 122 is a disc with a cut surface on the disc, which is matched with the fitting portion 1 201 located on the wall surface of the yarn box plug 2. The cut surface is fitted in the fitting portion 1 201 to stabilize one end of the covering member 122, and the fitting portion 2 202 is used to install the side of the disc opposite to the cut surface. At the same time, the covering member 122 is adapted to the adjusting member 3. For this purpose, the covering member 122 has a matching portion 123 adapted to the adjusting member 3.

[0031] Specifically, the spindle head 12 is connected to the shaft rod 11 separately, specifically by the connecting portion 124 being clamped to the shaft rod 11 .

[0032] Specifically, the adjusting member 3 is meshed and connected with the yarn box stopper 2, and is fixed on the yarn box stopper 2 through the adjusting member 3. The torsion of the coil spring assembly is adjusted by the one-way knob to control the rising speed of the pull beam in the window frame driven by the control shaft assembly 1. The adjusting member 3 includes a toothing portion 31 and a connecting rod 32 extending from the toothing portion 31. The connecting rod 32 is connected to the coil spring assembly 5, wherein the inner wall surface of the yarn box stopper 2 has a spiral tooth portion 21 adapted to the toothing portion 31, and the spiral tooth portion 21 has an axial hole 22 that passes through the inner wall surface of the yarn box stopper 2, and the axial hole 22 is used to adjust the adjusting member 3. For this purpose, the toothing portion 31 has a central control portion 311 fixed on the axial hole 22. In this structure, the central control portion 311 is controlled by the control rod to pull the outer toothing portion 31 to rotate and twist on the spiral tooth portion 21. The central control portion 311 is a hexagonal screw hole.

[0033] Specifically, the limiter 4 is fixed on the yarn box stopper 2 and is positioned by the column 23 on the yarn box stopper 2. The column 23 is located on one side of the spiral tooth portion 21. At the same time, the limiter 4 is penetrated by the connecting rod 32, and its end face is pressed by the back side of the engaging portion 31. The column 23 is fixed to the limiter 4 by a fastener and an elastic member. When the central control part 311 is subjected to a thrust, the engaging portion 31, which can only move in one direction, is released from contact with the adapted spiral tooth portion 21, and the force of the coil spring assembly 5 can be readjusted, and the limiter 4 is reset to the original position by the rebound of the elastic member.

[0034] It should be noted that the fasteners and elastic members are not shown in the figure. The fasteners are bolts that are threadedly fixed to the column 23, while the elastic members are springs that are sleeved on the column and limited by the fasteners.

[0035] In this structure, in order to ensure structural diversity, a movable mounting member 100 is further provided on the yarn box stopper 2. The mounting member 100 is located on the slide 300 on the yarn box stopper 2 and slides, and the installation position of the outer frame of the yarn box stopper 2 can be flexibly adjusted.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An elastic force adjustment system for an invisible screen roller, characterized in that: include: A reel assembly, comprising a shaft and a spindle head located on one side of the shaft; a yarn box plug coupled with the reel assembly, the yarn box plug being provided with an adjusting member and a limiting member, one end of the adjusting member being connected with the reel assembly, and the other end being coupled with the yarn box plug, the limiting member being located on one side of the adjusting member and pressing against the adjusting member; Among them, the main shaft head is provided with a coil spring assembly, which is coupled to the coil spring assembly by the adjusting part. The rebound torque of the main shaft head is adjusted by the movement of the adjusting part on the yarn box plug, and the limiting part is subjected to the external force applied by the adjusting part to reset the rebound torque of the main shaft head.

2. The elastic force adjustment system for the invisible screen roller according to claim 1, characterized in that: The spindle head is provided with a coil spring assembly via a shaft disc, and the coil spring assembly is located in a coil spring cavity in the shaft disc. The outer end of the coil spring assembly is pulled and rotated by a connecting head in the coil spring cavity, while the inner end on the other side is pulled by an adjusting member.

3. The elastic force adjustment system for the invisible screen roller according to claim 2, characterized in that: The yarn box plug is provided with a covering piece adapted to the shaft disc, the covering piece is located on the first and second fitting parts of the yarn box plug, and the adjusting piece is adapted to the adjusting piece through the matching part.

4. The elastic force adjustment system for the invisible screen roller according to claim 1, characterized in that: The main shaft head is connected to the shaft rod separately and is clamped to the shaft rod by the connecting part.

5. The elastic force adjustment system for the invisible screen roller according to claim 1, characterized in that: The adjusting part is meshed and connected with the yarn box stopper, and the adjusting part includes a toothed portion and a connecting rod extending from the toothed portion. The connecting rod is connected to the coil spring assembly. The inner wall surface of the yarn box stopper has a spiral tooth portion that is adapted to the toothed portion. The spiral tooth portion has an axial hole that passes through the inner wall surface of the yarn box stopper, and the toothed portion has a central control portion installed on the axial hole.

6. The elastic force adjustment system for the invisible screen roller according to claim 5, characterized in that: The yarn box block fixes the limiting piece through a column, and the column fixes the limiting piece through a fastener and an elastic piece, and the column is located on one side of the spiral tooth part.

7. The elastic force adjustment system for the invisible screen roller according to claim 1, characterized in that: The yarn box plug is further provided with a movable mounting piece, and the mounting piece is located on a slideway on the yarn box plug and is engaged and slidable.

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