Curtain bead pulling system

Abstract

The utility model relates to the technical field of curtain bead pulling, and discloses a curtain bead pulling system which comprises a transmission shell (1) located in a curtain box shell (10), a bead pulling wheel (2) arranged in the transmission shell (1), a bead pulling chain (3) installed on the bead pulling wheel (2) and an end cover (4) connected with the transmission shell (1), an opening (101) is formed in the side, close to the end cover (4), of the transmission shell (1), a fixing base (5) is installed at the opening (101), and the end cover (4) is connected with the end cover (4). The fixed seat (5) penetrates through the curtain box shell (10), and the bead pulling chain (3) penetrates through the fixed seat (5); according to the bead pulling system, the bead pulling chain is far away from the curtain box shell through the fixing base, and noise generated when the bead pulling chain collides with the curtain box shell during use is reduced; meanwhile, the bead pulling system is integrally arranged in the curtain box shell, the bead pulling chain is arranged on the front side of the curtain, and the width of the curtain box cannot be additionally increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of curtain pull bead, concretely relates to a curtain pull bead system. BACKGROUND

[0002] The curtain has the functions of sunshade, heat insulation, indoor light adjustment, indoor decoration and the like, and includes a roller blind, a venetian blind, a honeycomb blind and a roman blind. In the existing curtain, a pull bead type venetian blind with an authorized publication number of CN202441238U includes an upper rail, a lower rail, a blade, a bead chain, the upper rail sequentially has a fixing seat, a pull bead device, a winding wheel and a metal rod, and the pull bead device is composed of a fixedly arranged large wheel and a set of movably arranged small wheels. The venetian blind is only equipped with one bead chain to control the lifting and opening and closing of the curtain, and is convenient to use. However, the pull bead device is arranged on one side of a curtain box, which increases the width of the curtain box, and the bead chain is pulled out from the lower part of the curtain box shell, and noise is often generated by the collision between the bead chain and the curtain box shell when the bead chain is pulled. SUMMARY

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a curtain pull bead system, the pull bead system realizes that the bead chain is away from the curtain box shell through the fixing seat, so as to reduce the noise generated by the collision between the bead chain and the curtain box shell during use. Meanwhile, the pull bead system is arranged in the curtain box shell, and the bead chain is arranged on the front side of the curtain, so that the width of the curtain box is not additionally increased.

[0004] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0005] The curtain pull bead system includes a transmission shell in the curtain box shell, a pull bead wheel arranged in the transmission shell, a bead chain installed on the pull bead wheel and an end cover connected with the transmission shell, an opening is arranged on the side of the transmission shell close to the end cover, a fixing seat is arranged at the opening, the fixing seat penetrates the curtain box shell, and the bead chain penetrates the fixing seat, so as to realize that the bead chain is away from the curtain box shell through the fixing seat, and reduce the noise generated by the collision between the bead chain and the curtain box shell during use.

[0006] As a preferred, a through groove is arranged on the fixing seat, a guide piece is arranged in the middle of the through groove, and the bead chain is arranged around the guide piece.

[0007] As a preferred, the guide piece is provided with a first arc surface, the lower groove wall of the through groove is a second arc surface, the bead chain is arranged along the first arc surface and the second arc surface, so as to guide and support the bead chain, and make the bead chain further away from the curtain box shell.

[0008] As a preferred, a fixing groove is arranged in the middle of the fixing seat, a protruding part matched with the fixing groove is arranged on the guide piece, so as to detachably install the guide piece on the fixing seat.

[0009] As preferred, the fixing groove is provided with a through hole, and the protruding part is provided with a protruding rod which is inserted into the through hole.

[0010] As preferred, the pull bead wheel is provided with a plurality of accommodating grooves for accommodating the pull beads, and the pull bead wheel is connected with a driving gear, and the inner wall of the transmission housing is provided with internal teeth, and a plurality of planetary gears are engaged between the driving gear and the internal teeth to drive the planetary gears to rotate by the pull bead chain.

[0011] As preferred, the planetary gears are connected with a gear carrier, and the gear carrier is provided with a transmission shaft which is connected with one end and is driven by the pull bead chain.

[0012] As preferred, the gear carrier and the pull bead wheel are provided with rubber pads.

[0013] As preferred, the end cover is provided with a protruding shaft on the side facing the pull bead wheel, the pull bead wheel is sleeved on the protruding shaft, and the end cover is provided with a first clamping part and a first clamping groove part, and the transmission housing is provided with a second clamping groove part and a second clamping part matched with the first clamping part and the second clamping part, the first clamping part is inserted into the second clamping groove part, and the second clamping part is inserted into the first clamping groove part, so as to detachably connect the end cover and the transmission housing.

[0014] As preferred, the end cover and the transmission housing are provided with edge grooves, and the fixed seat is provided with insertion blocks which are inserted into the edge grooves to limit the fixed seat.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The pull bead system realizes that the pull bead chain is away from the curtain box shell through the fixed seat, reduces the noise generated by the collision between the pull bead chain and the curtain box shell during use, and sets the pull bead system in the curtain box shell and the pull bead chain on the front side of the window curtain, so that the width of the curtain box is not additionally increased. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the window curtain pull bead system in the curtain box shell.

[0018] Figure 2 It is a top view of the window curtain pull bead system in the curtain box shell.

[0019] Figure 3 It is a sectional view of the window curtain pull bead system in the curtain box shell.

[0020] Figure 4 It is a structure schematic view of the window curtain pull bead system.

[0021] Figure 5 It is a split structure schematic view of the window curtain pull bead system.

[0022] Figure 6 It is a structure schematic view of the window curtain pull bead system without an end cover.

[0023] Figure 7 It is the structural schematic view of transmission housing in the window curtain pull bead system.

[0024] Figure 8 It is the partial structural schematic view of the window curtain pull bead system.

[0025] Figure 9 It is the structural schematic view of the window curtain outer frame.

[0026] Figure 10 It is the side view of the window curtain outer frame.

[0027] In the drawing: 1-transmission housing, 101-opening, 102-inner tooth, 11-second clamping groove part, 12-second clamping part, 13-edge slot, 2-pull bead wheel, 21- accommodating groove, 3-pull bead chain, 4-end cover, 41-convex shaft, 42-first clamping part, 43-first clamping groove part, 5-fixing seat, 51-through groove, 511-second arc surface, 52-fixing groove, 53-through hole, 54-insertion block, 6-guide piece, 61-first arc surface, 62-convex part, 63-convex rod, 7-driving gear, 8-planetary gear, 9-gear carrier, 91-transmission shaft, 92-rubber pad, 10-curtain box housing. DETAILED DESCRIPTION

[0028] Embodiment 1: the utility model provides a window curtain pull bead system, including transmission housing 1 in curtain box housing 10, pull bead wheel 2 that is located in transmission housing 1 inside, pull bead chain 3 that is installed on pull bead wheel 2 and with transmission housing 1 is connected end cover 4, transmission housing 1 is equipped with opening 101 near end cover 4 side, and opening 101 is installed with fixed seat 5, and fixed seat 5 penetrates curtain box housing 10, and pull bead chain 3 passes through fixed seat 5, to realize that pull bead chain 3 is away from curtain box housing 10 by fixed seat 5, to reduce the noise that pull bead chain 3 uses because of the collision of curtain box housing 10, and the whole pull bead system is set in curtain box housing, and pull bead chain 3 is set in the front side of window curtain, and will not increase the width of curtain box additionally.

[0029] Embodiment 2: the utility model provides a window curtain pull bead system, and the difference only in that: the fixed seat 5 is provided with a through groove 51, and a guide piece 6 is arranged in the middle of the through groove 51, the pull bead chain 3 is arranged around the guide piece 6, the guide piece 6 is provided with a first arc surface 61, and a second arc surface 511 is arranged on the lower groove wall of the through groove 51, and the pull bead chain 3 is arranged along the first arc surface 61 and the second arc surface 511, so as to guide and support the pull bead chain 3, and the pull bead chain 3 is further away from the curtain box housing 10.

[0030] The middle part of the fixing seat 5 is provided with a fixing groove 52, and the guide piece 6 is provided with a protruding part 62 matched with the fixing groove 52, so that the guide piece 6 is detachably installed on the fixing seat 5; the fixing groove 52 is provided with a through hole 53, and the protruding part 62 is provided with a protruding rod 63 which is inserted into the through hole 53.

[0031] In the embodiment 3, the difference between the curtain pull bead system and the above-mentioned embodiments is that: the pull bead wheel 2 is provided with a plurality of accommodating grooves 21 for accommodating pull beads on the circumference of the pull bead wheel 2, the pull bead wheel 2 is connected with a driving gear 7, the inner wall of the transmission shell 1 is provided with an inner tooth 102, a plurality of planetary gears 8 are engaged between the driving gear 7 and the inner tooth 102, so as to drive the planetary gears 8 to rotate by pulling the pull bead chain 3; the planetary gears 8 are connected with a gear frame 9, the gear frame 9 is provided with a transmission shaft 91 connected at one end, so as to drive the transmission shaft 91 to move by pulling the pull bead chain 3; the gear frame 9 and the pull bead wheel 2 are provided with a rubber pad 92 therebetween.

[0032] In the embodiment 4, the difference between the curtain pull bead system and the above-mentioned embodiments is that: the end cover 4 is provided with a protruding shaft 41 on the side facing the pull bead wheel 2, the pull bead wheel 2 is sleeved on the protruding shaft 41, and the end cover 4 is provided with a first clamping part 42 and a first clamping groove part 43, the transmission shell 1 is provided with a second clamping groove part 11 and a second clamping part 12 matched with the first clamping part 42 and the first clamping groove part 43, the first clamping part 42 is inserted into the second clamping groove part 11, the second clamping part 12 is inserted into the first clamping groove part 43, and the end cover 4 and the transmission shell 1 are detachably connected; the end cover 4 and the transmission shell 1 are both provided with a side groove 13, the fixing seat 5 is provided with an insertion block 54, and the insertion block 54 is inserted into the side groove 13 to limit the fixing seat 5.

[0033] The above-mentioned is only a specific embodiment of the utility model, but the technical features of the utility model are not limited to this, any person skilled in the art makes changes or modifications in the field of the utility model, and the changes or modifications are covered in the patent range of the utility model.

Claims

1. A curtain bead system, characterized in that The application relates to a curtain box drive mechanism, which comprises a transmission housing (1) located in a curtain box shell (10), a pull bead wheel (2) arranged in the transmission housing (1), a pull bead chain (3) mounted on the pull bead wheel (2) and an end cover (4) connected with the transmission housing (1), wherein the transmission housing (1) is provided with an opening (101) near one side of the end cover (4), a fixing seat (5) is mounted at the opening (101), the fixing seat (5) penetrates through the curtain box shell (10), the pull bead chain (3) passes through the fixing seat (5), the pull bead chain (3) is away from the curtain box shell (10) through the fixing seat (5), and thus the noise generated by the pull bead chain (3) due to collision with the curtain box shell (10) during use is reduced.

2. The window treatment bead system of claim 1, wherein, A through groove (51) is arranged on the fixing seat (5), a guide piece (6) is arranged at the middle portion of the through groove (51), and the pull bead chain (3) passes around the guide piece (6).

3. The window treatment bead system of claim 2, wherein, The guide piece (6) is provided with a first arc surface (61), the lower groove wall of the through groove (51) is a second arc surface (511), the pull bead chain (3) is distributed along the first arc surface (61) and the second arc surface (511), so that the pull bead chain (3) is guided and supported, and the pull bead chain (3) is further away from the curtain box shell (10).

4. The window treatment bead system of claim 2, wherein, A fixing groove (52) is arranged at the middle portion of the fixing seat (5), a protruding portion (62) matched with the fixing groove (52) is arranged on the guide piece (6), and the guide piece (6) is detachably mounted on the fixing seat (5).

5. The window treatment bead system of claim 4, wherein, A through hole (53) is arranged on the fixing groove (52), a convex rod (63) is arranged on the protruding portion (62), and the convex rod (63) is inserted into the through hole (53).

6. The window treatment bead system of any of claims 1-5, wherein, A plurality of accommodating grooves (21) for accommodating pull beads are arranged on the circumference of the pull bead wheel (2), a driving gear (7) is connected to the pull bead wheel (2), an inner tooth (102) is arranged on the inner wall of the transmission housing (1), a plurality of planetary gears (8) are engaged between the driving gear (7) and the inner tooth (102), and the pull bead chain (3) is used to drive the planetary gears (8) to rotate.

7. The window treatment bead system of claim 6, wherein, The planetary gears (8) are connected with a gear frame (9), the gear frame (9) is provided with a transmission shaft (91) penetrating through one end, and the transmission shaft (91) is driven by the pull bead chain (3).

8. The window treatment bead system of claim 7, wherein, A rubber pad (92) is arranged between the gear frame (9) and the pull bead wheel (2).

9. The window treatment bead system of claim 6, wherein, A protruding shaft (41) is arranged on the side of the end cover (4) facing the pull bead wheel (2), the pull bead wheel (2) is sleeved on the protruding shaft (41), the end cover (4) is provided with a first clamping portion (42) and a first clamping groove portion (43), the transmission housing (1) is provided with a second clamping groove portion (11) and a second clamping portion (12) matched with the first clamping portion (42) and the first clamping groove portion (43), the first clamping portion (42) is inserted into the second clamping groove portion (11), the second clamping portion (12) is inserted into the first clamping groove portion (43), and the end cover (4) and the transmission housing (1) are detachably connected.

10. The window treatment bead system of claim 9, wherein, The end cover (4) and the transmission housing (1) are both provided with an edge groove (13), and the fixing seat (5) is provided with an insertion block (54) inserted into the edge groove (13) to limit the fixing seat (5).

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