CN210087212U

CN210087212U - Spring torsion force adjusting device for non-pull curtain

Info

Publication number: CN210087212U
Application number: CN201920569492.4U
Authority: CN
Inventors: 张年青; 魏社华; 杨鹏宇
Original assignee: ZHENGZHOU MINGYANG CURTAIN ACCESSORY MATERIALS CO Ltd
Current assignee: ZHENGZHOU MINGYANG CURTAIN ACCESSORY MATERIALS CO Ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-02-18
Anticipated expiration: 2029-04-24

Abstract

The utility model provides a conveniently-adjusted torsion adjusting device for a spring of a non-pull window curtain, which comprises a second bracket, wherein a bracket shaft of the second bracket is sequentially provided with an adjusting wheel and a torsion core connected with the torsion spring in a rotating way; the outer surface of the adjusting wheel is a gear, one end face of the adjusting wheel extends out of the first sector ring, one end of the torsion core extends out of the second sector ring, the first sector ring and the second sector ring are oppositely arranged on two sides of the same position of the support shaft, a gap exists between the first sector ring and the second sector ring, at least one bidirectional torsion spring is arranged on the support shaft corresponding to the first sector ring and the second sector ring, and two upright posts of each bidirectional torsion spring are respectively arranged in the gap between the second sector rings of the first sector ring; the first fan ring and the second fan ring are sleeved with a second sleeve which can rotate. The utility model discloses the adjustment disk is provided with the tooth, and the (window) curtain accessible of equipment carries out spring torsion with installing matched with gear electrical equipment and adjusts, also can adjust spring torsion at will after the (window) curtain is packed into the window frame.

Description

Spring torsion force adjusting device for non-pull curtain

Technical Field

The utility model belongs to the (window) curtain field, concretely relates to do not have curtain spring torsion adjusting device that draws.

Background

With the development and progress of the society, curtain products are continuously updated, and the rope-free rainbow curtain and the rope-free rolling curtain which are produced and sold in the market at present are difficult to balance in the debugging process. The non-pull curtain generally adopts a torsion spring and a spring torsion adjusting system to realize force application or force removal. The existing torque force adjusting system needs to be familiar with products and manually adjusted, and is troublesome to operate.

SUMMERY OF THE UTILITY MODEL

The utility model provides a do not have curtain spring torsion adjusting device that draws of convenient regulation.

The purpose of the utility model is realized with the following mode: the spring torsion adjusting device of the non-pull curtain comprises a second bracket, wherein a bracket shaft of the second bracket is sequentially and rotatably provided with an adjusting wheel and a torsion core connected with a torsion spring; the outer surface of the adjusting wheel is a gear, one end face of the adjusting wheel extends out of the first sector ring, one end of the torsion core extends out of the second sector ring, the first sector ring and the second sector ring are oppositely arranged on two sides of the same position of the support shaft, a gap exists between the first sector ring and the second sector ring, at least one bidirectional torsion spring is arranged on the support shaft corresponding to the first sector ring and the second sector ring, and two upright posts of each bidirectional torsion spring are respectively arranged in the gap between the second sector rings of the first sector ring; the first fan ring and the second fan ring are sleeved with a second sleeve which can rotate.

The device also comprises a small gear matched with the gear of the adjusting wheel, and the small gear is driven by the driving device to rotate.

The driving device is a hand drill.

The first sleeve is rotatably arranged on the first support; the two ends of the outer circular pipe are respectively connected with the first sleeve and the second sleeve, an inner circular pipe is arranged in the outer circular pipe, and a torsion spring is sleeved on the inner circumference of the outer circular pipe; one end of the torsion spring is connected with the torsion core, and the other end of the torsion spring is connected with a sliding block which is arranged in the outer circular tube in a sliding manner and rotates together with the outer circular tube; the rotating wheel rotating together with the outer circular pipe is arranged in one end, close to the first support, of the outer circular pipe, the rotating wheel is rotatably arranged on the rotating wheel inner core, and the rotating wheel inner core is fixed with the inner circular pipe.

The outer surface of the twisting core is provided with a sliding chute which is a thread groove, and one end of the torsion spring is arranged in the sliding chute; the sliding block is provided with a thread groove connected with the torsion spring.

The cross section of the first sector ring is sector ring-shaped and is concentric with the gear of the regulating wheel; the twisting core is cylindrical, and one end of the twisting core extends out of a second fan ring which has a fan-shaped cross section and is concentric with the twisting core.

The utility model has the advantages that: the structure is simple, the adjustment is easy, the occupied transverse space is small, the adjusting disc is provided with teeth, the assembled curtain can be subjected to spring torsion adjustment through the gear electric equipment matched with the gear electric equipment, and the spring torsion can be adjusted at will after the curtain is installed in a window frame; the adjusting wheel disc can also be adjusted manually.

Drawings

Fig. 1 is an overall schematic view of a non-pull window shade.

Fig. 2 is a schematic view of the upper portion of the curtain without a pull (excluding the first bracket, the upper housing, and the outer tube).

Fig. 3 is an exploded view of fig. 2.

Fig. 4 is a schematic view of a spring torsion adjustment device.

Fig. 5 is an exploded view of fig. 4.

Fig. 6 is a diagram of the assembly process of fig. 5.

Wherein, 1 is an outer circular tube, 2 is a lower beam, 3 is a curtain body, 4 is a first bracket, 5 is a second bracket, 6 is an upper cover shell, 7 is a first sleeve, 8 is a second sleeve, 9 is an adjusting wheel, 10 is a twisting core, 11 is a first fan ring, 12 is a second fan ring, 13 is a bidirectional torsion spring, 14 is an inner circular tube, 15 is a torsion spring, 16 is a sliding block, 17 is a rotating wheel, 18 is a rotating wheel inner core, and 50 is a bracket shaft.

Detailed Description

The non-pull curtain comprises an outer circular tube 1, a lower beam 2, an upper cover shell 6 and a curtain body 3 which is arranged between the outer circular tube 1 and the lower beam and can be unfolded and folded. The upper end of the curtain body 3 penetrates into the groove of the outer circular tube after being adhered with the pressing strip, the lower end of the curtain body 3 penetrates into the groove of the upper housing 6 after being adhered with the pressing strip, and the two ends of the lower beam 2 are provided with lower beam sealing heads. The lower beam 2 is a circular lower beam with a circular section and a triangular lower beam with a triangular section, the circular lower beam with the circular section is placed in the curtain body 3, the triangular lower beam with the triangular section is installed outside the curtain body, other shapes of the triangular lower beam with the triangular section can be changed to be matched with the circular lower beam with the circular section, and a balance weight is arranged in the triangular lower beam with the triangular section. The outer circular tube 1 is a grooved aluminum circular tube.

Two sides of the outer circular tube 1 are respectively provided with a first support 4 and a second support 5, and the first support 4 and the second support 5 are fixed on the upper housing 6. The second bracket 5 includes a bracket shaft 50. The first sleeve 7 is rotatably arranged on the bracket cylinder of the first bracket 4, and the second sleeve 8 is rotatably arranged on the bracket shaft 50. The two ends of the outer circular tube 1 are matched with the first sleeve 7 and the second sleeve 8. When the curtain body 3 is folded, the outer circular tube 1 rotates to drive the first sleeve 7 and the second sleeve 8 to rotate.

The support shaft 50 of the second support 5 is sequentially provided with an adjusting wheel 9, a second sleeve 8 and a torsion core 10 in a rotating way. The regulating wheel 9 is a gear wheel, and a first sector ring 11 which is sector-shaped in cross section and concentric with the gear wheel extends out of one end face of the regulating wheel. The twisting core 10 is cylindrical, a sliding groove is arranged on the outer surface of the twisting core, the sliding groove can be a thread groove, and a second fan-shaped ring 12 which is fan-shaped in cross section and concentric with the twisting core 10 extends out of one end far away from the thread groove; the first sector ring 11 and the second sector ring 12 are positioned correspondingly with a gap therebetween, and at least one bidirectional torsion spring 13, or two bidirectional torsion springs, is disposed on the support shaft 50 corresponding to the first sector ring 11 and the second sector ring 12. The two uprights of each bidirectional torsion spring 13 are respectively arranged in the gap between the second sector rings 12 of the first sector ring 11. The bidirectional torsion spring 13 ensures that the torsion core 10 rotates along with the clockwise or anticlockwise rotation of the adjusting wheel 9. However, when the torsion core 10 applies force to the bidirectional torsion spring 13, the bidirectional torsion spring 13 is locked tightly around the support shaft 50, and the adjusting wheel 9 cannot rotate. The second sleeve 8 is rotatably arranged outside the first sector ring 11 and the second sector ring 12 and can rotate freely, and the rotation of the second sleeve 8 does not affect the first sector ring 11 and the second sector ring 12. The angle between the first sector ring 11 and the second sector ring 12 is less than 90 degrees, with a gap between them. The shape and positional relationship of the first ring 11 and the second ring 12 are not necessarily a strict ring shape as long as the force can be transmitted by the bidirectional torsion spring 13 when the rotation is performed.

An inner circular tube 14 is arranged inside the outer circular tube 1, and one end of the inner circular tube 14 is matched with the torsion core 10 and fixed through a bolt. A torsion spring 15 is arranged between the inner circular tube 14 and the outer circular tube 1, and the torsion spring 15 is sleeved on the inner circular tube 14. One end of the torsion spring 15 is connected with a slide block 16 which can move in the outer circular tube 1, and the slide block 16 is matched with the inner wall of the outer circular tube 1 and rotates along with the outer circular tube 1. One end of the outer circular tube 1 close to the first support 4 is provided with a rotating wheel 17 which rotates together with the outer circular tube 1, the rotating wheel 17 is rotatably arranged on an inner core 18 of the rotating wheel, and the inner core 18 of the rotating wheel is fixed with the inner circular tube 14. After the rotating wheel 17 is installed, the sliding block 16 can be prevented from sliding out of the inner circular tube 13 to cause abnormal recovery when the torque force is increased, and the torque spring 15 can be concentric with the outer circular tube 1 after the rotating wheel 17 is installed, so that the abnormal sound generated by friction between the torque spring 15 and the tube wall of the outer circular tube 1 due to the fact that the torque spring 15 is not concentric after the torque spring 15 is installed in the outer circular tube 1 can be avoided. The other end of the torsion spring 15 is connected with the torsion core 10. The outer surface of the torsion core 10 is provided with a screw groove for engagement with the torsion spring 15. A torsion spring 15 is fitted over the threaded end and is a close fit.

During installation, the adjusting wheel 9 is firstly installed on the support shaft 50 of the second support 5, then the two bidirectional torsion springs 13 are sequentially sleeved on the installed support shaft 50, then the second sleeve 8 is sleeved on the second support 5, the torsion core 10 is installed on the support shaft 50, and then the pan head gasket screw is used for fixing. A round hole at one end of an inner circular tube 14 is aligned with a hole on a torsion core 10 and fixed by screws, a torsion spring 15 is sleeved on the inner circular tube 14, one end of the torsion spring is clamped in a sliding groove or a thread groove of the torsion core 10, then a sliding block 16 is sleeved on the inner circular tube 14 from the tail end, the other end of the torsion spring 15 is clamped in a sliding groove or a thread groove of the sliding block 16, a rotating wheel 17 is installed on an inner core 18 of the rotating wheel after the installation, and then the rotating wheel is installed on the inner circular tube 14 and fixed by screws.

The former regulating wheel 9 is adjusted by manual twisting, which is laborious and only can adjust half-circle function each time. The regulating wheel 9 adopts a gear, is matched with a customized pinion matched with the gear of the regulating wheel 9, and is driven by a driving mechanism, so that the regulating wheel can be conveniently and quickly rotated. The driving mechanism can be a hand drill or a motor.

When the curtain body is folded, the sliding block 16 rotates along with the outer circular tube 1, and the elasticity of the torsion spring 15 is changed accordingly. The first support 4 may also be provided with a damping adjustment mechanism for adjusting the resistance, such as the structure of an adjustable resistance device disclosed in patent CN 201820096948.5. The resistance adjusting mechanism, the spring torsion adjusting device and the lower beam counterweight adjust the state of the curtain without pulling together.

When the hand drill is specifically implemented, the hand drill drives the small gear to rotate, so that the adjusting gear is driven to rotate for 9 turns. When the adjusting wheel 9 rotates clockwise, the two-way torsion spring 13 is driven to push the torsion core 10, the torsion core 10 drives one end of the torsion spring 15 to rotate clockwise, and the torsion spring 15 generates clockwise torsion to enable the sliding block 16 at the other end of the torsion spring 15 to generate clockwise torsion to the outer circular tube 1. Conversely, the adjusting wheel 9 is rotated anticlockwise, and the outer circular tube 1 generates anticlockwise torsion. Thereby achieving the unloading and loading of the torsion spring 15.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Claims

1. There is not curtain spring torsion adjusting device that draws, its characterized in that: the torsion spring support comprises a second support, wherein a support shaft of the second support is sequentially and rotatably provided with an adjusting wheel and a torsion core connected with the torsion spring; the outer surface of the adjusting wheel is a gear, one end face of the adjusting wheel extends out of the first sector ring, one end of the torsion core extends out of the second sector ring, the first sector ring and the second sector ring are oppositely arranged on two sides of the same position of the support shaft, a gap exists between the first sector ring and the second sector ring, at least one bidirectional torsion spring is arranged on the support shaft corresponding to the first sector ring and the second sector ring, and two upright posts of each bidirectional torsion spring are respectively arranged in the gap between the second sector rings of the first sector ring; the first fan ring and the second fan ring are sleeved with a second sleeve which can rotate.

2. The spring torsion adjustment apparatus for a roller blind according to claim 1, wherein: the device also comprises a small gear matched with the gear of the adjusting wheel, and the small gear is driven by the driving device to rotate.

3. The spring torsion adjustment apparatus for a roller blind according to claim 2, wherein: the driving device is a hand drill.

4. The spring torsion adjustment apparatus for a roller blind according to claim 1, wherein: the first sleeve is rotatably arranged on the first support; the two ends of the outer circular pipe are respectively connected with the first sleeve and the second sleeve, an inner circular pipe is arranged in the outer circular pipe, and a torsion spring is sleeved on the inner circumference of the outer circular pipe; one end of the torsion spring is connected with the torsion core, and the other end of the torsion spring is connected with a sliding block which is arranged in the outer circular tube in a sliding manner and rotates together with the outer circular tube; the rotating wheel rotating together with the outer circular pipe is arranged in one end, close to the first support, of the outer circular pipe, the rotating wheel is rotatably arranged on the rotating wheel inner core, and the rotating wheel inner core is fixed with the inner circular pipe.

5. The spring torsion adjustment apparatus for a roller blind according to claim 4, wherein: the outer surface of the torsion core is provided with a sliding groove which is a thread groove, and one end of the torsion spring is arranged in the sliding groove; the sliding block is provided with a thread groove connected with the torsion spring.

6. The spring torsion adjustment apparatus for a roller blind according to claim 1, wherein: the cross section of the first sector ring is sector ring-shaped and is concentric with the gear of the regulating wheel; the twisting core is cylindrical, and one end of the twisting core extends out of a second fan ring which has a fan-shaped cross section and is concentric with the twisting core.