Manual roller shutter head

Abstract

The utility model relates to a manual roller shutter head which comprises two bases, a mounting weight, two mounting grooves, a circular groove, a bead wheel, a bead wheel, a pull bead, a winding drum and a linkage unit. The utility model can solve the following problems in the pulling process of the roller shutter head in the prior art: only one end of the roller shutter cylinder is driven, so that the other end of the roller shutter cylinder has no driving force and is easy to slip, the rotating speeds of the two ends of the roller shutter cylinder are easy to be inconsistent, that is, the rotating turns of the two ends of the roller shutter cylinder are different during the falling of the curtain cloth; one end of the roller shutter cylinder is easily stressed due to the fact that the curtain cloth inclines for a long time, and then the service life of the roller shutter cylinder is influenced; the rotating speed and the number of turns of the two ends of the winding drums are consistent, so that the curtain cloth is kept horizontal when ascending and descending, and the using effect and the attractiveness are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of window decoration products, in particular to a manual rolling curtain head. Background Art

[0002] A manual roller shutter brake is a manual device used to control the raising and lowering of curtains or sunshades. This type of brake usually contains one or more mechanical components, such as pull cords and gears, which work together to raise or lower the curtains. However, the friction between the internal structures of the brake is relatively large, and the uneven force on both sides of the brake and the tail plug makes the roller shutter easily deflected, resulting in a short service life.

[0003] A large number of rolling shutter head devices are also disclosed in the prior art. For example, the Chinese patent with publication number CN210003176U discloses a rolling shutter head including a head base with a cover plate fixedly installed on one side. A mounting hole is axially opened on the head base, and the mounting hole is separated by a partition to form a first mounting groove and a second mounting groove. A bead pull plate is installed between the cover plate and the head base, and the bead pull plate transmits the transmission plate through the first transmission card plate, the second transmission card plate and the retaining spring.

[0004] When in use, the bead pulling plate transmits the transmission plate through the first transmission clamping plate, the second transmission clamping plate and the retaining spring, and the internal noise is low during use; the transmission rod in the second mounting groove drives the head sleeve to rotate through the meshing transmission structure of the gear column, the structure is stable, the internal friction is small, and the pulling force required when the head is used is also small.

[0005] However, the above-mentioned existing technology for rolling shutter heads still has some shortcomings in actual use: by only driving one end of the rolling shutter drum, the other end of the rolling shutter drum has no driving force and is prone to slipping, so that the rotation speeds of the two ends of the rolling shutter drum are easily inconsistent, that is, when the curtain is dropped, the number of turns of the two ends of the rolling shutter drum is different, which causes the curtain to tilt when it falls, affecting normal use, and long-term tilt of the curtain can easily cause one end of the rolling shutter drum to be subjected to force, thereby affecting its service life.

[0006] Therefore, under the viewpoint of the above statement, the existing roller blind head still has room for improvement. Utility Model Content

[0007] In order to solve the above problems, the utility model provides a manual rolling shutter head, including two relatively arranged bases, the top of each base is provided with an installation code, the top of each installation code has a vertical curling edge, and two installation grooves are provided on the vertical curling edge, and circular grooves are provided on the opposite sides of the two bases, a bead wheel is rotatably arranged in the circular groove, a pull bead is passed between the bead wheel and the circular groove, and a drum is installed on the opposite sides of the two bead wheels, and a linkage unit is provided between the two bases.

[0008] Preferably, the outer wall of the bead wheel is evenly provided with a plurality of control grooves, and the beads are pulled into contact with the control grooves;

[0009] The pull bead is composed of a pull rope and a driving bead, wherein a plurality of driving beads are equidistantly arranged on the outer wall of the pull rope, and the distance between two adjacent driving beads is equal to the distance between two adjacent control grooves.

[0010] Preferably, the outer wall of the bead wheel is evenly provided with a plurality of annularly distributed gear teeth, the outer wall of the gear teeth is provided with a bead hole, and balls are rolled inside the bead hole, and the balls are in conflict with the inner wall of the circular groove.

[0011] Preferably, the outer side wall of the roller is provided with a plurality of raised strips which are parallel to the axis thereof and match the roller shutter drum, and the outer side wall of the roller is also provided with a plurality of rubber anti-skid pads which are spaced apart from the raised strips.

[0012] Preferably, two through holes connected to the circular groove are symmetrically opened at the lower end of any one of the bases, and a guardrail is provided on the side of the through hole close to the other base. The bead passes through one of the through holes and then bypasses the bead wheel and passes through the other through hole.

[0013] Preferably, the linkage unit includes a through hole, and two through holes distributed up and down are provided on the same side of the two bases, the through holes are connected to the circular groove, and a guide tube connected to the through hole is provided on the outer wall of the base.

[0014] Preferably, the guide tube is an L-shaped structure, the end of the guide tube away from the base is parallel to the axis of the runner, and the opposite sides of the two guide tubes at corresponding positions on the two bases are on the same axis;

[0015] The bead passes through the through hole on the side away from the guide tube, and then passes through the circular groove and the upper guide tube in turn to pass into the circular groove on the other base. The bead passes through the circular groove, the lower guide tube and another through hole in turn and then passes out downward.

[0016] Preferably, the base with the through hole has a notch on one side close to the guide tube, and a control block is hinged on the inner wall of the notch, and the control block is snap-connected to the top wall of the notch. The guide tube below the side wall of the base is composed of two detachable parts and is respectively connected to the base and the control block.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] 1. The utility model controls the bead wheels and the roller at both ends of the roller to rotate simultaneously by pulling the beads, so that the rotation speed and number of turns at both ends of the roller are consistent, ensuring that the curtain remains level when rising and falling, improving the use effect and aesthetics.

[0019] Second, the utility model increases the friction between the roller and the roller by arranging anti-skid pads between the raised strips on the outer side of the roller, making the connection between the roller and the roller more stable and ensuring synchronous rotation.

[0020] 3. The utility model has a bead hole on the outer wall of the gear teeth, and a ball is rolled inside the bead hole. The ball contacts the inner wall of the circular groove. The cooperation between the ball and the circular groove can reduce the friction, and the bead wheel can be supported in multiple directions in an annular manner, thereby improving the stability of the bead wheel and the roller during rotation, thereby ensuring the smooth rise and fall of the curtain. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 It is a structural diagram of the present utility model.

[0023] Figure 2 It is a structural diagram between the base and the bead wheel of the utility model.

[0024] Figure 3 It is a structural diagram of the linkage unit of the utility model.

[0025] Figure 4 This utility model Figure 3 A partial enlarged view of point A.

[0026] Figure 5 It is a partial structural diagram of the reel of the utility model.

[0027] Figure 6 It is a structural diagram of the base, the control block and the guide tube therebetween of the utility model.

[0028] In the figure, 1. base; 11. circular groove; 12. through hole; 13. guardrail; 14. control block; 2. mounting code; 3. mounting groove; 4. bead wheel; 41. control groove; 42. gear teeth; 43. bead hole; 44. ball; 5. pull bead; 51. pull rope; 52. driving bead; 6. reel; 61. raised strip; 62. rubber anti-slip pad; 7. linkage unit; 71. through hole; 72. guide tube. DETAILED DESCRIPTION

[0029] The following is combined with Figures 1-6 The embodiments of the present utility model are described in detail.

[0030] The embodiment of the present application discloses a manual roller blind control head, which explains that the manual roller blind control head is mainly used in the process of controlling the roller blind, and can technically make the rotation speed and circle speed of the two ends of the roller blind cylinder consistent; further, the manual roller blind control head can avoid the problem of looseness between the roller blind cylinder and the drum 6, and avoid the problem of collision between the bead wheel 4 and the inner wall of the base 1 when rotating.

[0031] Example 1:

[0032] Reference Figure 1 、 Figure 2 、 Figure 3 As shown, in order to ensure that the two sides of the roller shutter are subjected to uniform force, a manual roller shutter head is provided in this example, including two oppositely arranged bases 1, and the top of the two bases 1 are provided with mounting codes 2, the top of the two mounting codes 2 have vertical curling edges, and two mounting grooves 3 are provided on the vertical curling edges, circular grooves 11 are provided on the opposite sides of the two bases 1, and a bead wheel 4 is rotatably arranged in the circular groove 11, a pull bead 5 is passed between the bead wheel 4 and the circular groove 11, and a drum 6 is installed on the opposite sides of the two bead wheels 4, and a linkage unit 7 is provided between the two bases 1; two through holes 12 connected to the circular groove 11 are symmetrically provided at the lower end of any one of the bases 1, and a guardrail 13 is provided on the side of the through hole 12 close to the other base 1; the linkage unit 7 includes a through hole 71, and two through holes 71 distributed up and down are provided on the same side of the two bases 1, the through holes 71 are connected to the circular groove 11, and a guide tube 72 connected to the through hole 71 is provided on the outer wall of the base 1.

[0033] Furthermore, a plurality of control grooves 41 are evenly opened on the outer wall of the bead wheel 4, and the pull bead 5 moves in contact with the control groove 41; the pull bead 5 is composed of a pull rope 51 and a driving bead 52, wherein a plurality of driving beads 52 are equidistantly arranged on the outer wall of the pull rope 51, and the distance between two adjacent driving beads 52 is equal to the distance between two adjacent control grooves 41.

[0034] During the specific implementation process, the bead 5 passes through the through hole 12 on the side away from the guide tube 72, and then passes through the circular groove 11 and the upper guide tube 72 in turn to pass into the circular groove 11 on the other base 1, and the bead 5 passes through the circular groove 11, the lower guide tube 72 and the other through hole 12 in turn and then passes downward. When the bead 5 is pulled, the bead 5 drives the bead wheels 4 in the two bases 1 to rotate synchronously, thereby controlling the synchronous rotation of the two ends of the rolling drum, and the speed and number of turns are consistent, thereby ensuring that the curtain always remains level when rising and falling, avoiding tilting that affects the use effect and aesthetics.

[0035] Reference Figure 4As shown, in order to improve the stability of the curtain rising and falling, it is necessary to ensure the stability of the bead wheel 4 when it rotates inside the base 1. Therefore, in this example, a plurality of annularly distributed gear teeth 42 are evenly arranged on the outer wall of the bead wheel 4, and a bead hole 43 is opened on the outer wall of the gear tooth 42. A ball 44 is rolled inside the bead hole 43, and the ball 44 conflicts with the inner wall of the circular groove 11; the friction force can be reduced by the cooperation between the ball 44 and the circular groove 11, and the bead wheel 4 can be annularly supported in multiple directions, thereby improving the stability of the bead wheel 4 and the rolling drum during rotation, thereby ensuring the smooth rising and falling of the curtain.

[0036] Reference Figure 5 As shown, in order to prevent the relative rotation between the winding drum 6 and the shutter roller and the inability to drive the shutter roller to rotate synchronously, in this example, a plurality of raised strips 61 parallel to its axis and cooperating with the shutter roller are provided on the outer wall of the winding drum 6, and a plurality of rubber anti-slip pads 62 spaced apart from the raised strips 61 are also installed on the outer wall of the winding drum 6.

[0037] In the specific implementation process, the shutter roller and the roller 6 are sleeved on the outer wall of the roller 6, and the shutter roller is sleeved on the outer wall of the roller 6. The rubber anti-slip pad 62 contacts the inner wall of the shutter roller, which increases the friction between the shutter roller and the roller 6, making the connection between the roller 6 and the shutter roller more stable and ensuring synchronous rotation.

[0038] Reference Figure 6 As shown, since the rolling rollers have different lengths, the distance between the two bases 1 needs to be adjusted according to the length of the rolling roller. A notch is provided on the side of the base 1 with the through hole 12 close to the guide tube 72, and a control block 14 is hinged on the inner wall of the notch. The control block 14 is snap-fitted to the top wall of the notch. The guide tube 72 below the side wall of the base 1 is composed of two detachable parts and is respectively connected to the base 1 and the control block 14.

[0039] During the specific implementation process, the control block 14 and the lower half of the guide tube 72 below are rotated downward to open the gap, thereby releasing the cooperation between the bead 5 and the bead wheel 4 at the gap, so as to disconnect the common connection between the bead wheel 4 and the bead 5 on the two bases 1; at this time, pulling or releasing the bead 5 at the gap can adjust the distance between the base 1 on the other side, and then the control block 14 and the guide tube 72 can be reset, so as to facilitate adaptive adjustment according to the length of the roller shutter drum, which can adapt to different scenes and is easy to operate. After adjustment, the two rollers 6 can still rotate synchronously.

[0040] When working: Step 1: Drill holes in the relative position on the wall where the roller shutter is to be installed.

[0041] Step 2: Install the two bases 1 at the punched positions through the mounting slots 3 on the mounting brackets 2 with expansion screws.

[0042] Step 3: The bead 5 passes through the through hole 12 on the side away from the guide tube 72, and then passes through the circular groove 11 and the upper guide tube 72 in turn to pass into the circular groove 11 on the other base 1, and the bead 5 passes through the circular groove 11, the lower guide tube 72 and another through hole 12 in turn and then passes out downward.

[0043] Step 4: The control block 14 and the lower half of the guide tube 72 are rotated downward to open the gap, thereby releasing the fit between the bead 5 and the bead wheel 4 at the gap. At this time, pull or release the bead 5 at the gap to adjust the distance from the base 1 on the other side, and then reset the control block 14 and the guide tube 72 to facilitate adaptive adjustment according to the length of the roller shutter.

[0044] Step 5: Pull the bead 5 on the bottom side, and the bead 5 drives the bead wheels 4 in the two bases 1 to rotate synchronously, thereby controlling the synchronous rotation of the two ends of the rolling roller.

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0046] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A manual roller blind control head, comprising two oppositely arranged bases (1), each of the two bases (1) being provided with a mounting block (2) on its top, each of the two mounting blocks (2) having a vertical curling edge on its top, and two mounting grooves (3) being provided on the vertical curling edge, wherein: Circular grooves (11) are provided on opposite sides of the two bases (1), a bead wheel (4) is rotatably provided in the circular groove (11), a pull bead (5) is passed between the bead wheel (4) and the circular groove (11), a reel (6) is installed on opposite sides of the two bead wheels (4), and a linkage unit (7) is provided between the two bases (1).

2. A manual rolling shutter head according to claim 1, characterized in that: The outer wall of the bead wheel (4) is evenly provided with a plurality of control grooves (41), and the pulling beads (5) are movably abutted in the control grooves (41); The pull bead (5) is composed of a pull rope (51) and a driving bead (52), wherein a plurality of driving beads (52) are equidistantly arranged on the outer wall of the pull rope (51), and the distance between two adjacent driving beads (52) is equal to the distance between two adjacent control grooves (41).

3. The manual rolling shutter control head according to claim 1, characterized in that: The outer wall of the bead wheel (4) is evenly provided with a plurality of annularly distributed gear teeth (42), the outer wall of the gear teeth (42) is provided with a bead hole (43), and a ball (44) is rolled inside the bead hole (43), and the ball (44) is in conflict with the inner wall of the circular groove (11).

4. The manual rolling shutter control head according to claim 1, characterized in that: The outer wall of the roller (6) is provided with a plurality of raised strips (61) parallel to its axis and matched with the roller shutter cylinder. The outer wall of the roller (6) is also provided with a plurality of rubber anti-skid pads (62) spaced apart from the raised strips (61).

5. The manual rolling shutter head according to claim 1, characterized in that: Two through holes (12) connected to the circular groove (11) are symmetrically provided at the lower end of any one of the bases (1), and a fence (13) is provided on the side of the through hole (12) close to the other base (1). The bead (5) passes through one of the through holes (12), bypasses the bead wheel (4), and exits from the other through hole (12).

6. The manual rolling shutter control head according to claim 5, characterized in that: The linkage unit (7) includes a through hole (71). Two through holes (71) distributed vertically are provided on the same side of the two bases (1). The through holes (71) are connected to the circular groove (11). The outer wall of the base (1) is provided with a guide tube (72) connected to the through hole (71).

7. The manual rolling shutter head according to claim 6, characterized in that: The guide tube (72) is an L-shaped structure, and one end of the guide tube (72) away from the base (1) is parallel to the axis of the rotating wheel, and the opposite sides of the two guide tubes (72) at corresponding positions on the two bases (1) are on the same axis; The bead (5) passes through the through hole (12) on the side away from the guide tube (72), and then passes through the circular groove (11) and the upper guide tube (72) in sequence to the circular groove (11) on the other base (1). The bead (5) passes through the circular groove (11), the lower guide tube (72) and the other through hole (12) in sequence and then passes out downward.

8. The manual rolling shutter control head according to claim 6, characterized in that: The base (1) provided with the through hole (12) has a notch on one side close to the guide tube (72), and a control block (14) is hingedly connected to the inner wall of the notch. The control block (14) is snap-fitted to the top wall of the notch. The guide tube (72) below the side wall of the base (1) is composed of two separable parts and is respectively connected to the base (1) and the control block (14).

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