CN110393418B

CN110393418B - Three-wheel rope winder for exposed pull rope-free curtain

Info

Publication number: CN110393418B
Application number: CN201810376446.2A
Authority: CN
Inventors: 陈弘澔; 蔡明哲
Original assignee: Sheen World Technology Corp
Current assignee: Sheen World Technology Corp
Priority date: 2018-04-24
Filing date: 2018-04-24
Publication date: 2022-01-11
Anticipated expiration: 2038-04-24
Also published as: CN110393418A

Abstract

The invention relates to a three-wheeled rope reel, which comprises a driving unit and a rope winding unit. The driving unit has two intermeshing coil spring wheels and a coil spring connecting the two coil spring wheels. The rope winding unit There is a rope reel and two lift transmission ropes. The rope reel engages one of the coil spring wheels, so that the rope reel can rotate synchronously with the two coil spring wheels. In addition, the rope reel has a rotating shaft, and the rotating shaft has an upper shaft. The upper and lower shaft parts are connected to the upper and lower shaft parts, and the two lifting transmission ropes are respectively arranged on the upper and lower shaft parts of the rotating shaft, so that the two lifting transmission ropes can be wound up by the rotation of the rope reel. The upper and lower shaft portions of the rotating shaft are released from or released from the upper and lower shaft portions of the rotating shaft. Thereby, the three-wheeled rope reel of the present invention can achieve the effect of simplifying the structure without affecting the transmission effect.

Description

Three-wheel rope winder for exposed pull rope-free curtain

Technical Field

The invention relates to an exposed pull rope-free curtain, in particular to a three-wheel type rope winder for the exposed pull rope-free curtain.

Background

Generally, the non-exposed pull-cord type curtain mainly uses a cord winder arranged in an upper beam to wind a lifting transmission cord, and the lifting transmission cord is connected with a lower beam, so that the lower beam gradually rises relative to the upper beam in the winding process of the lifting transmission cord, and blades are stacked together by the upward movement of the lower beam, thereby achieving the purpose of folding the curtain.

The cord winder has no problem in use for the common-size window curtains, but is easy to interfere with other components due to the length of the cord winder when the cord winder is matched with a window curtain with a special size (such as a narrow-long window curtain). Therefore, it is an urgent need to solve the above-mentioned problems by simplifying the structure of the rope winder without affecting the transmission effect of the rope winder.

Disclosure of Invention

The invention mainly aims to provide a three-wheel rope winder for an exposed pull rope-free curtain, which can achieve the effect of simplifying the structure under the condition of not influencing the transmission effect.

To achieve the above objective, the three-wheel rope winder of the present invention comprises a base, a driving unit and a rope winding unit. The driving unit is provided with two coil spring wheels and a coil spring, each coil spring wheel is rotatably arranged on the base and is provided with a first upper fluted disc, a first lower fluted disc and a first rotating shaft connected with the first upper fluted disc and the first lower fluted disc, and the coil spring is connected with the first rotating shafts of the two coil spring wheels. The rope winding unit is provided with a rope winding wheel, a first lifting transmission rope and a second lifting transmission rope, the rope winding wheel is rotatably arranged on the base and is provided with a second upper fluted disc, a second lower fluted disc and a second rotating shaft, the second upper fluted disc and the second lower fluted disc are respectively meshed with a first upper fluted disc and a first lower fluted disc of one of the spring winding wheels of the driving unit, so that the rope winding wheel can synchronously rotate with the two spring winding wheels, the second rotating shaft is provided with an upper shaft part, a lower shaft part and a separating part, one end of the upper shaft part and one end of the lower shaft part are respectively connected with the second upper fluted disc and the second lower fluted disc, the separating part is connected between the upper shaft part and the lower shaft part, the first lifting transmission rope and the second lifting transmission rope are respectively arranged on the upper shaft part and the lower shaft part of the second rotating shaft and are separated by the separating part of the second rotating shaft, so that the first lifting transmission rope and the second lifting transmission rope can be simultaneously wound on the second rotating shaft, The lower shaft portion is released from the upper and lower shaft portions of the second shaft.

Therefore, the three-wheel rope winder of the invention adopts the way of separating the two lifting transmission ropes from top to bottom to arrange the two lifting transmission ropes on the same rope winding wheel, and utilizes the meshing transmission relation to ensure that the rope winding wheel can synchronously act along with the two coil spring wheels, thereby shortening the whole length without influencing the transmission effect and further realizing the effect of simplifying the structure.

Preferably, the opposite ends of the base have a first opening and a second opening, respectively, and one side of the base further has a guide rod and a limiting ring, the limiting ring is located between the rope winding wheel and the guide rod and corresponds to the upper shaft of the rope winding wheel. In addition, the first lifting transmission rope penetrates through the limiting ring and abuts against the guide rod, one end of the first lifting transmission rope is connected with the lower shaft part of the second rotating shaft, the other end of the first lifting transmission rope penetrates out of the base through the first opening of the base and is used for connecting one end of a lower beam, one end of the second lifting transmission rope is connected with the upper shaft part of the second rotating shaft, and the other end of the second lifting transmission rope penetrates out of the base through the second opening of the base and is used for connecting the other end of the lower beam. Therefore, the first lifting transmission rope and the second lifting transmission rope can enable the lower beam to achieve the effect of average stress, and the condition of single-side inclination cannot be generated.

Preferably, the base has a plurality of first vertical rods adjacent to the first opening and a plurality of second vertical rods adjacent to the second opening, the first lifting transmission rope abuts against at least one of the first vertical rods, the second lifting transmission rope abuts against at least one of the second vertical rods, and by changing the number and the positions of the first and second vertical rods, the wiring mode of the first and second lifting transmission ropes can be adjusted, so that the effect of adjusting the resistance of the first and second lifting transmission ropes is achieved.

The invention will be described in detail in the following embodiments with respect to the detailed construction, features, assembly or use of the three-wheel cord winder provided by the present invention. However, those skilled in the art will understand that the detailed description and specific examples, while indicating the specific embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

Drawings

Fig. 1 is an external perspective view of a three-wheel cord winder of the present invention.

Fig. 2 is a partially exploded perspective view of the three-wheel cord winder of the present invention.

Fig. 3 is a front view of the three-wheeled cord winder of the present invention.

Fig. 4 is a top view of the three-wheeled cord winder of the present invention with the top plate removed.

Description of reference numerals:

10 three-wheel rope winder 20 base

21 upper support of top plate 212

214 upper axle 22 bottom plate

221 lower support 223 lower axle

23 first opening 24 second opening

25 first upright 26 second upright

27 guide rod 28 stop collar

30 drive unit 31 coil spring wheel

32 first upper cog 33 first lower cog

34 first rotating shaft 35 coil spring

40 rope winding unit 41 rope winding wheel

42 second upper toothed disc 43 second lower toothed disc

44 second rotating shaft 45 upper shaft part

46 lower shaft part 47 partition part

48 first lifting transmission rope 49 second lifting transmission rope

Detailed Description

The applicant hereby gives notice that, in the embodiments and in the drawings that will be described below, the same reference numerals will be used to designate the same or similar components or structural features thereof.

Referring to fig. 1 and 2, the three-wheel rope winder 10 of the present invention includes a base 20, a driving unit 30, and a rope winding unit 40.

The base 20 is rectangular and has a top plate 21 and a bottom plate 22. The top plate 21 has five pairs of upper support posts 212 on its periphery, the bottom plate 22 has five pairs of lower support posts 221 on its periphery, the top and

bottom plates

21, 22 are assembled together by buckling the two opposite upper and

lower support posts

212, 221, after the top and

bottom plates

21, 22 are assembled, as shown in fig. 3, the right end of the base 20 has a first opening 23, and the left end of the base 20 has a second opening 24. In addition, the bottom surface of the top plate 21 has three upper wheel axles 214, and the top surface of the bottom plate 22 has three lower wheel axles 223, so that the upper and

lower wheel axles

214, 223 are connected together in a one-to-one manner after the top and

bottom plates

21, 22 are assembled.

As shown in fig. 2 and 4, the right end of the base 20 has three first vertical rods 25, one of which is located at the first opening 23, the other is located at the front side of the base 20, the last one is adjacent to the rear side of the base 20, the left end of the base 20 has two second vertical rods 26, the two second vertical rods 26 are connected between the top and

bottom plates

21, 22, one of which is located at the second opening 24, and the other is located at the front side of the base 20. In addition, as shown in fig. 1 and fig. 2, the base 20 further has a guide rod 27 and a limiting ring 28, the guide rod 27 is disposed at the front side of the bottom plate 22 and is adjacently disposed at the middle lower pillar 221, and the limiting ring 28 is embedded between two adjacent upper pillars 212 of the top plate 21 and abuts against the top end of the guide rod 27.

The driving unit 30 has two coil spring wheels 31 and a coil spring 35. Each of the coil spring wheels 31 has a first upper gear plate 32, a first lower gear plate 33 and a first rotating shaft 34, the first rotating shaft 34 is rotatably sleeved on one of the upper and

lower axles

214, 223 of the base 20, and the top and bottom ends of the first rotating shaft 34 are respectively integrally connected to the first upper and

lower gear plates

32, 33, and the coil spring 35 is connected to the first rotating shaft 34 of the two coil spring wheels 31 for providing elastic restoring force to drive the two coil spring wheels 31 to rotate synchronously.

The rope winding unit 40 has a rope winding wheel 41, a first lifting transmission rope 48 and a second lifting transmission rope 49, wherein: the rope winding wheel 41 has a second upper gear 42, a second lower gear 43 and a second rotating shaft 44, the second upper and

lower gears

42, 43 are respectively engaged with the first upper and

lower gears

32, 33 of one of the rope winding wheels 31 of the driving unit 30, the second rotating shaft 44 is rotatably sleeved on one of the upper and

lower axles

214, 223 of the base 20, and the top and bottom ends of the second rotating shaft 44 are respectively integrally connected with the second upper and

lower gears

42, 43, so that the rope winding wheel 41 can be driven by the two rope winding wheels 31 to synchronously rotate by using the engagement transmission relationship. As shown in fig. 2 and 3, the second rotating shaft 44 has an upper shaft portion 45, a lower shaft portion 46 and a separating portion 47, one end of each of the upper and

lower shaft portions

45, 46 is integrally connected to the second upper and lower

toothed discs

42, 43, respectively, and the separating portion 47 is integrally connected between the upper and

lower shaft portions

45, 46, wherein the upper shaft portion 45 corresponds to the stopper ring 28 of the base 20, the outer diameter of the upper shaft portion 45 gradually decreases from the second upper toothed disc 42 toward the separating portion 47, and the outer diameter of the lower shaft portion 46 gradually decreases from the second lower toothed disc 43 toward the separating portion 47; one end of the first elevating transmission rope 48 is connected to the upper shaft portion 45 of the second rotating shaft 44, and one end of the second elevating transmission rope 49 is connected to the lower shaft portion 46 of the second rotating shaft 44, so that the first and second

elevating transmission ropes

48 and 49 are partitioned by the partition portion 47 of the second rotating shaft 44 to prevent the mutual winding and knotting. The other end of the first lifting/lowering driving rope 48 passes through the limiting ring 28 and abuts against the guide rod 27 (as shown in fig. 3 and 4), and then passes through the first opening 23 of the base 20 to pass through the base 20 for connecting one end of a lower beam (which is a prior art and not shown in the figures), and the other end of the second lifting/lowering driving rope 49 passes through the second opening 24 of the base 20 to pass through the base 20 (as shown in fig. 3 and 4) for connecting the other end of the lower beam, so that the lower beam cannot be inclined in a single side when being pulled by the first and second lifting/lowering

driving ropes

48 and 49, and the lower beam is subjected to an even force.

As described above, when the first and second elevating

cords

48 and 49 are simultaneously extended outward and gradually come out of the upper and

lower shaft portions

45 and 46 of the second rotating shaft 44 of the rope winding wheel 41, the rope winding wheel 41 engages and transmits the coil spring pulley 31 engaged therewith, and then the coil spring pulley 31 driven by the rope winding wheel 41 further engages and transmits the other coil spring pulley 31, and the coil spring 35 is pulled by the two coil spring pulleys 31 to accumulate the elastic restoring force. When the tension applied to the first and second elevating

transmission ropes

48 and 49 is released, the elastic restoring force of the coil spring 35 acts on the two coil spring wheels 31 to rotate the two coil spring wheels 31 in the opposite directions, and the coil spring wheel 31 engaged with the coil wheel 41 engages with the transmission coil wheel 41 to simultaneously wind the first and second elevating

transmission ropes

48 and 49 around the upper and

lower shaft portions

45 and 46 of the second rotating shaft 44 by the coil wheel 41.

In addition, in order to make the first and second lifting/lowering

transmission ropes

48, 49 receive proper resistance when they are actuated, the first and second lifting/lowering

transmission ropes

48, 49 are respectively wound around at least one first vertical rod 25 and at least one second vertical rod 26. in this embodiment, as shown in fig. 4, the first lifting/lowering transmission rope 48 is wound around two first vertical rods 25 and then passes through the first opening 23 of the base 20 and out of the base 20, and the second lifting/lowering transmission rope 49 is wound around two second vertical rods 26 and then passes through the second opening 24 of the base 20 and out of the base 20. However, in practice, the configuration of the first and second

vertical rods

25, 26 and the winding manner of the first and second lifting/lowering

transmission ropes

48, 49 can be adjusted according to actual needs, for example, one or more of the first and second

vertical rods

25, 26 can be provided, the first and second lifting/lowering

transmission ropes

48, 49 can be wound around one or more of the first and second

vertical rods

25, 26, respectively, or even around each of the first and second

vertical rods

25, 26, respectively. In other words, by changing the number and position of the first and second

vertical rods

25, 26 and adjusting the routing manner of the first and second lifting transmission ropes 48, 49 at a proper time, the effect of adjusting the resistance on the first and second

lifting transmission ropes

48, 49 can be achieved.

In summary, the three-wheel rope winder 10 of the present invention employs the first and second

elevation transmission ropes

48 and 49 disposed on the same rope winding wheel 41 in a vertically separated manner, and utilizes the engagement transmission relationship to allow the rope winding wheel 41 to synchronously operate with the two spring winding wheels 31, so as to shorten the overall length without affecting the transmission effect, thereby achieving the effect of simplifying the structure.

Claims

1. A three-wheeled rope reel for non-exposed drawstring curtains, comprising:

a base;

A driving unit, having two coil spring wheels and a coil spring, each of the coil spring wheels is rotatably arranged on the base and has a first upper toothed plate, a first lower toothed plate and a connection connecting the first upper and lower toothed plates. the first rotating shaft of the lower gear plate, the coil spring is connected to the first rotating shaft of the two coil spring wheels; and

A rope winding unit has a rope winding wheel, a first lifting transmission rope and a second lifting transmission rope, the rope winding wheel is rotatably arranged on the base and has a second upper toothed disc, a second lower The toothed plate and a second rotating shaft. The second upper and lower toothed plates are respectively engaged with the first upper and lower toothed plates of the coil spring wheel of the drive unit. The second rotating shaft has an upper shaft portion and a lower shaft. one end of the upper and lower shaft parts are respectively connected to the second upper and lower toothed discs, the separation part is connected between the upper and lower shaft parts, and the first and second lift transmission ropes are respectively provided on the upper and lower shaft portions of the second rotating shaft and separated by the partition portion of the second rotating shaft;

Two opposite ends of the base have a first opening and a second opening respectively, and one side of the base has a guide rod and a limit ring, the limit ring is located between the rope reel and the Between the guide rods and corresponding to the upper shaft of the rope reel; the first lift transmission rope passes through the limit ring and abuts against the guide rod, and one end of the first lift transmission rope is connected to the second rotating shaft The lower shaft portion, the other end of the first lift transmission rope passes out of the base through the first opening of the base, and one end of the second lift transmission rope is connected to the upper shaft portion of the second rotating shaft, the second lift The other end of the transmission rope passes out of the base through the second opening of the base.

2. The three-wheeled rope reel for non-exposed drawstring curtains as claimed in claim 1, wherein the base further has a first vertical pole disposed adjacent to the first opening and a first vertical rod disposed adjacent to the The second vertical rod with the second opening, the first lifting transmission rope abuts on the first vertical rod, and the second lifting transmission rope abuts on the second vertical rod.

3 . The three-wheeled rope reel of claim 1 , wherein the base has a plurality of first vertical rods adjacent to the first opening and a plurality of adjacent ones. 4 . In the second vertical rod of the second opening, the first lifting transmission rope abuts at least one of the first vertical rods, and the second lifting transmission rope abuts at least one of the second vertical rods.

4 . The three-wheeled rope reel of claim 1 , wherein the outer diameter of the upper shaft portion of the second rotating shaft is separated from the second upper gear plate toward the second rotating shaft. 5 . The direction of the lower shaft portion of the second rotating shaft gradually decreases, and the outer diameter of the lower shaft portion of the second rotating shaft gradually decreases from the second lower toothed plate to the direction of the dividing portion of the second rotating shaft.