Sunshade roller shutter

Abstract

The utility model provides a sunshade roller shutter, which belongs to the technical field of roller shutters and comprises a left end seat, a right end seat and a winding drum, two ends of the winding drum are movably connected with the left end seat and the right end seat, the periphery of the winding drum is provided with a roller shutter, the bottom end of the roller shutter is provided with a pull rod and a handle and is matched with an arm rod or a guide rod, and when the guide rod is arranged, two ends of the pull rod are matched with lug rings; a channel roller outer sleeve and a channel roller are arranged in the channel roller, the channel roller is matched with a return spring, a positioning groove, a positioning channel and a return channel are arranged on the periphery of the channel roller, and the positioning groove is a C-shaped positioning groove. The channel roller is sleeved with a sliding groove, the balls rolling in the positioning groove, the positioning channel and the return channel are limited through the sliding groove and positioned through the positioning groove, and return of the roller shutter is achieved through the return channel. According to the utility model, the C-shaped positioning groove is arranged, so that the dead locking phenomenon is avoided; the return spring is arranged, so that the ball can automatically return to the positioning groove, and pull-down positioning of the roller shutter is realized; and by arranging the torsional spring, the ball rolls in the return channel, so that the roller shutter is returned.

Description

Technical Field

[0001] The utility model belongs to the technical field of rolling curtains, and in particular relates to a sunshade rolling curtain. Background Art

[0002] Sunshade roller blinds are used to effectively block strong light from entering the room, and they have the functions of light transmission, view transmission, and temperature regulation. Sunshade roller blinds can be used in various architectural decorations according to different needs, such as villas, office buildings, business buildings, hotels, high-end factory buildings, etc.

[0003] Currently, the sunshade roller blinds on the market have the problem of locking at least once every time they are pulled down 40mm, and are easily locked, or the ball cannot return to the positioning groove by itself, so they can only be dismantled for repair or replacement, resulting in economic losses and waste of resources, and a poor user experience. Utility Model Content

[0004] The utility model aims to provide a sunshade roller blind, characterized in that it comprises a left end seat and a right end seat fixed to a wall for support and a roller for fixing the roller blind, wherein the right end of the roller is movably fixed to the right end seat;

[0005] A core shaft extends from the center of the left end seat toward the right end seat, and the outer circumference of the core shaft is provided with a movably connected outer cover, a channel roller, a return spring for realizing the pull-down positioning of the rolling curtain, and a torsion spring with a preload for realizing the return of the rolling curtain in sequence from left to right. A channel roller outer cover is provided on the outer circumference of the outer cover and the channel roller, and the channel roller outer cover is matched with the channel roller, and the two ends are respectively connected to the outer cover and the reel for transmission;

[0006] A first pin hole is provided on the outer periphery of the channel roller, the right end of the return spring is interference fit with the outer periphery of the core shaft, and the left end is inserted into the first pin hole;

[0007] A second pin hole is provided on the outer periphery of the core shaft, and one end of the torsion spring is fixed to the core shaft by inserting into the second pin hole. A rib support is provided on the inner periphery of the reel at the other end of the torsion spring, and the outer periphery of the rib support is transmission-connected with the inner periphery of the reel. A third pin hole is provided on the rib support, and the other end of the torsion spring is inserted into the third pin hole.

[0008] Furthermore, the channel roller sleeve and the channel roller cooperate specifically as follows: a sliding groove is transversely provided on the channel roller sleeve, and balls roll on the periphery of the channel roller, and the balls roll on the periphery of the channel roller and in the sliding groove.

[0009] Furthermore, the outer periphery of the channel roller is provided with a concave positioning groove for realizing the pulling-down positioning of the roller blind, a positioning channel for allowing the ball to pass into the positioning groove, a return channel for realizing the return of the roller blind, and a guide block for guiding the positioning channel and the return channel. The rotation direction of the roller blind is used to determine whether the ball rolls in the positioning channel or the return channel.

[0010] Furthermore, the positioning groove is a C-shaped positioning groove.

[0011] Furthermore, the outer circumference of the channel roller is symmetrically arranged, including two positioning grooves and two positioning channels. When the ball rolls from one of the positioning grooves to another positioning groove, the roller blind is pulled down by 10 mm.

[0012] Furthermore, the right end of the channel roller sleeve is integrally extended into the inner circumference of the left end of the drum with a connecting portion, and the inner circumference of the drum, the outer circumference of the connecting portion and the outer circumference of the rib support are all provided with ribs and grooves in sequence and at equal intervals. The ribs and grooves provided on the connecting portion and the outer circumference of the rib support cooperate with the ribs and grooves provided on the inner circumference of the drum to achieve transmission connection with each other, and then cooperate with the torsion spring, return spring, ball and channel roller to realize the pull-down positioning and return of the roller blind.

[0013] Furthermore, it also includes an outer shell, a pull rod and a handle, the two ends of the outer shell are respectively fixed to the left end seat and the right end seat, the pull rod is arranged at the bottom end of the rolling curtain, that is, the two ends of the rolling curtain are respectively fixed to the outer periphery of the roller and the pull rod, and the handle is fixed to the middle part of the pull rod. When the rolling curtain is retracted, the rolling curtain is located inside the outer shell.

[0014] Furthermore, the sunshade roller blind includes a rocker arm type and a guide rod type. When the sunshade roller blind is a rocker arm type, the outer shell is a square outer shell and is provided with at least one arm rod. The arm rod is arranged on the front or rear side of the roller blind, and its two ends are respectively fixed to the inner wall of the outer shell and the outer periphery of the pull rod. When the roller blind is retracted, the arm rod is bent and located inside the outer shell.

[0015] Furthermore, when the sunshade roller blind is of a guide rod type, the outer shell is a D-shaped outer shell, and a guide rod is provided on the left and right sides of the roller blind, the tops of the two guide rods are respectively fixed to the left end seat and the right end seat, and both ends of the pull rod have earrings for guiding the roller blind to be pulled down straightly and recovered, and the bottom ends of the two guide rods pass through the two earrings respectively and are fixed to the wall.

[0016] Compared with the prior art, the beneficial effects of the utility model are mainly reflected in:

[0017] 1. The utility model sunshade roller blind uses a return spring to make the ball return to the positioning groove when the hand pulling down the roller blind is released, so as to realize the pull-down positioning of the roller blind. Through the setting of the torsion spring with pre-tightening force, the roller blind is pulled down to the bottom and continues to be pulled down for 15mm. Then, the roller blind is automatically retracted into the shell, and during the retraction process, the roller blind is immediately pulled down and positioned.

[0018] 2. The utility model uses the positioning grooves symmetrically arranged on the channel rollers to allow the rolling curtain to be locked every 10 mm, and the positioning grooves are C-shaped grooves, so locking will not occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a structural diagram of a rocker-arm sunshade roller blind in the sunshade roller blind of the utility model.

[0020] Figure 2 The utility model is a structural diagram of a guide rod type sunshade roller blind in the sunshade roller blind.

[0021] Figure 3 This is a diagram showing the coordination between the roller jacket and the reel in the middle channel of the present invention.

[0022] Figure 4 This is the internal structure diagram of the utility model.

[0023] Figure 5 This is a structural diagram of the channel roller and the mandrel in the utility model.

[0024] Figure 6 It is a structural diagram of the middle channel roller jacket of the utility model.

[0025] Figure 7 It is a vertical cross-sectional view of the reel in the utility model.

[0026] Among them, 1. left end seat; 2. right end seat; 3. core shaft; 4. outer cover; 5. channel roller; 51. positioning groove; 52. positioning channel; 53. return channel; 6. ball; 7. return spring; 8. torsion spring; 9. support; 10. channel roller jacket; 101. connecting part; 11. reel; 12. roller blind; 13. pull rod; 14. handle; 15. outer shell; 16. arm rod; 17. guide rod; 18. earring; 19. pin hole. DETAILED DESCRIPTION

[0027] A sunshade roller blind of the utility model will be described in more detail below in conjunction with a schematic diagram, in which a preferred embodiment of the utility model is shown. It should be understood that those skilled in the art can modify the utility model described herein and still achieve the beneficial effects of the utility model. Therefore, the following description should be understood as being widely known to those skilled in the art and not as a limitation to the utility model.

[0028] like Figure 1-7 As shown, a sunshade roller blind includes a left end seat 1, a right end seat 2, a roller 11, a roller blind 12 and a housing 15. A core shaft 3 is fixed on the left side of the left end seat 1, and the core shaft 3 cannot rotate. The outer cover 4, the channel roller 5, the return spring 7 and the torsion spring 8 are fixed to the outer periphery of the core shaft 3 from left to right. The right end of the torsion spring 8 extends out of the core shaft 3 and is fixed with a rib support 9 by inserting a pin hole 19. The outer cover 4 and the channel roller 5 are both movably connected to the core shaft 3 so that both can rotate on the outer periphery of the core shaft 3, and the outer periphery of the channel roller 5 is provided with a pin hole 19, one end of the return spring 7 is inserted into the pin hole 19, and the other end is interference fit with the core shaft 3, so that the channel roller 5 can only rotate slightly under the drive of the return spring 7. The outer periphery of the core shaft 3 is also provided with a pin hole 19, and both ends of the torsion spring 8 are respectively fixed to the core shaft 3 and the support 9 by inserting the pin hole 19.

[0029] The outer circumference of the channel roller 5 is inwardly concavely provided with a positioning groove 51, a positioning channel 52 and a return channel 53, wherein the positioning groove 51 is a C-shaped groove to avoid locking after positioning. One end of the positioning channel 52 is connected to the return channel 53, and the other end points to the positioning groove 51. The side walls of the return channel 53 and the positioning channel 52 are both provided with guide blocks for guiding the rolling direction of the ball 6.

[0030] Located at the periphery of the channel roller 5 and the outer cover 4, the sunshade roller blind is provided with a channel roller outer cover 10, and the inner periphery of the channel roller outer cover 10 is provided with a horizontally arranged sliding groove, and the ball 6 slides in the sliding groove, and the sliding groove is used to limit the sliding direction of the ball 6.

[0031] refer to Figure 6 and Figure 7 The right end of the channel roller jacket 10 is the reel 11. The right end of the reel 11 is rotatably connected to the right end seat 2. Twelve ribs are arranged on the inner circumference, that is, ribs and grooves are arranged in sequence and at equal intervals. In coordination with the ribs, a connecting portion 101 extends to the right from the right end of the channel roller jacket 10. The connecting portion 101 extends into the interior of the reel 11. Similarly, twelve or eighteen ribs are arranged on the outer circumference of the connecting portion 101. Two twelve or eighteen ribs cooperate with each other to achieve a transmission connection between the reel 11 and the channel roller jacket 10. Similarly, the rib support 9 and the reel 11 are mutually connected through twelve or eighteen ribs. When the roller shutter 12 is pulled down, the reel 11 is driven to rotate, driving the rib support 9 to rotate, thereby causing the torsion spring 8 fixed at one end on the rib support 9 to twist. When the roller shutter 12 is pulled down to the bottom and pulled down 15 mm again, the ball is separated from the C-shaped groove to the return channel and is not locked. The channel roller housing 10 and the roller blind 12 are lifted back into the housing 15 by the preload force of the torsion spring 8 .

[0032] The top of the rolling curtain 12 is fixed to the outer circumference of the reel 11 . When the rolling curtain 12 is pulled down or raised up, the reel 11 rotates, driving the channel roller housing 10 to rotate, thereby driving the ball 6 to roll in the positioning channel 52 or the return channel 53 .

[0033] The outer circumference of the outer cover sleeve 4 is provided with protrusions at equal intervals, and the multiple protrusions cooperate with the preset grooves on the inner circumference of the channel roller sleeve 10, so as to realize the self-rotation of the channel roller sleeve 10 on the outer circumference of the core shaft 3.

[0034] The two ends of the housing 15 are respectively fixed to the left end seat 2 and the right end seat 3, and are used to shield the recovered rolling curtain 12. A pull rod 13 is provided at the bottom of the rolling curtain 12, and a handle 14 is provided in the middle of the pull rod 13, so that the user can pull down the rolling curtain 12.

[0035] The utility model includes two styles of sunshade roller blinds, namely, a rocker arm type and a guide rod type. Figure 1 and 2 shown.

[0036] When the sunshade roller blind is a rocker arm type, the shell 15 is a square shell, and two plastic arms 16 are arranged opposite to each other on the front side of the roller blind 12. The middle part of the arm 16 can be bent. When the roller blind 12 is completely retracted into the shell 15, the arm 16 is bent and hidden inside the shell 15.

[0037] When the sunshade roller blind is a guide rod type, the housing 15 is a D-shaped housing, guide rods 17 are provided on both sides of the roller blind 12, and earrings 18 are provided at both ends of the pull rod 13. The top ends of the two guide rods 17 are respectively fixed to the left end seat 2 and the right end seat 3, and the bottom ends pass through the earrings 18 and are fixed to the wall or support. The earrings 18 are round and are used to guide the roller blind 12 to run straight up and down.

[0038] Two positioning grooves 51 and two positioning channels 52 are provided on the outer circumference of the channel roller 5. The two positioning grooves 51 and the two positioning channels 52 are symmetrically arranged. When the ball 6 moves from one positioning groove to another positioning groove, the roller blind 12 is pulled down by 10 mm.

[0039] The specific operation of the utility model sunshade roller blind is as follows:

[0040] Swing arm sunshade roller blinds:

[0041] The handle 14 is pulled downward to drive the rolling curtain 12 and the arm 16 to unfold, thereby driving the reel 11 to rotate counterclockwise and causing the channel roller housing 10 to rotate counterclockwise. At the same time, the ball 6 rolls in the positioning channel 52 in the channel roller 5 to unfold the rolling curtain 12.

[0042] When the handle 14 is released, the channel roller 5 is reversely acted upon by the return spring 7 so that the ball 6 returns to the C-shaped groove with a locking position on the positioning channel 52 and is locked.

[0043] If the area of ​​the rolling curtain 12 needs to be increased, repeat the above steps.

[0044] If the rolling curtain 12 is not needed, the handle 14 is held and the pull rod 13 is pulled downward to release it. The rolling curtain 12 is retracted under the action of the preload force of the torsion spring 8, and the reel 11 rotates clockwise, driving the channel roller housing 10 to rotate clockwise, causing the ball 6 to roll in the return channel 53 until the rolling curtain 12 is rolled up to the top and hidden in the housing 15, and the rolling is stopped.

[0045] Guide rod type sunshade roller blinds:

[0046] Pull the handle 14 to pull the rolling curtain 12 downward, and the rolling curtain 2 unfolds straight downward with the cooperation of the earrings 18 and the guide rods 17, thereby driving the reel 11 to rotate counterclockwise and causing the channel roller housing 10 to rotate counterclockwise. At the same time, the ball 6 rolls in the positioning channel 52 in the channel roller 2 to unfold the rolling curtain 12.

[0047] When the handle 14 is released, the channel roller 5 is reversely acted upon by the return spring 7, so that the ball 6 returns to the C-shaped groove with a locking position on the positioning channel 52 and is locked.

[0048] If the area of ​​the rolling curtain 12 needs to be increased, repeat the above steps.

[0049] If the roller blind 12 is not needed, hold the handle 14, pull the pull rod 13 downward and release it. The roller blind 12 is retracted straightly in cooperation with the guide rod 17 and the earring 18 under the action of the preload force of the torsion spring 8, and the reel 11 rotates clockwise, driving the channel roller housing 10 to rotate clockwise, causing the ball 6 to roll in the return channel 53 until the roller blind 12 is rolled up to the top and hidden in the housing 15, and the retraction stops.

[0050] The above are only preferred embodiments of the present invention and do not limit the present invention in any way. Any technician in the relevant technical field, without departing from the scope of the technical solution of the present invention, may make any equivalent replacement or modification to the technical solution and technical content disclosed in the present invention, which shall be deemed as the content of the technical solution of the present invention and still fall within the protection scope of the present invention.

Claims

1. A sunshade roller blind, characterized in that: It includes a left end seat and a right end seat fixed to the wall for support, and a roller for fixing the roller blind, wherein the right end of the roller is connected to the right end seat; A core shaft extends from the center of the left end seat toward the right end seat, and the outer circumference of the core shaft is provided with a movably connected outer cover, a channel roller, a return spring for realizing the pull-down positioning of the rolling curtain, and a torsion spring with a preload for realizing the return of the rolling curtain in sequence from left to right. The outer cover and the outer circumference of the channel roller are provided with a channel roller outer cover, and the channel roller outer cover is arranged in cooperation with the channel roller, and the two ends are respectively connected to the outer cover and the winding drum for transmission; A first pin hole is provided on the outer periphery of the channel roller, the right end of the return spring is interference fit with the outer periphery of the mandrel, and the left end is inserted into the first pin hole; A second pin hole is provided on the outer periphery of the core shaft, and one end of the torsion spring is fixed to the core shaft by being inserted into the second pin hole. A rib support is provided on the inner periphery of the reel at the other end of the torsion spring, and the outer periphery of the rib support is transmission-connected with the inner periphery of the reel. A third pin hole is provided on the rib support, and the other end of the torsion spring is inserted into the third pin hole.

2. The sunshade roller blind according to claim 1, characterized in that: The channel roller outer sleeve cooperates with the channel roller in the following specific aspects: a sliding groove is transversely provided on the channel roller outer sleeve, a ball rolls on the outer periphery of the channel roller, and the ball rolls on the outer periphery of the channel roller and in the sliding groove.

3. The sunshade roller blind according to claim 2, characterized in that: The outer periphery of the channel roller is provided with a concave positioning groove for realizing the positioning of the rolling curtain when being pulled down, a positioning channel for allowing the ball to pass to the positioning groove, a return channel for realizing the return of the rolling curtain, and a guide block for guiding the positioning channel and the return channel. The rotation direction of the rolling curtain determines that the ball rolls on the positioning channel or the return channel.

4. The sunshade roller blind according to claim 3, characterized in that: The positioning groove is a C-shaped positioning groove.

5. The sunshade roller blind according to claim 3, characterized in that: The channel roller is symmetrically arranged on its periphery, and includes two positioning grooves and two positioning channels. When the ball rolls from one of the positioning grooves to another positioning groove, the roller blind is pulled down by 10 mm.

6. The sunshade roller blind according to claim 1, characterized in that: The right end of the channel roller sleeve is integrally extended into the inner circumference of the left end of the drum with a connecting part, and the inner circumference of the drum, the outer circumference of the connecting part and the outer circumference of the rib support are all provided with ribs and grooves in sequence and at equal intervals. The ribs and grooves provided on the connecting part and the outer circumference of the rib support cooperate with the ribs and grooves provided on the inner circumference of the drum to achieve transmission connection with each other, and then cooperate with the torsion spring, return spring, ball and channel roller to realize the pull-down positioning and return of the roller blind.

7. The sunshade roller blind according to claim 1, characterized in that: It also includes an outer shell, a pull rod and a handle, wherein the two ends of the outer shell are respectively fixed to the left end seat and the right end seat, the pull rod is arranged at the bottom end of the rolling curtain, that is, the two ends of the rolling curtain are respectively fixed to the outer periphery of the roller and the pull rod, and the handle is fixed to the middle part of the pull rod. When the rolling curtain is retracted, the rolling curtain is located inside the outer shell.

8. The sunshade roller blind according to claim 7, characterized in that: The sunshade roller blind includes a rocker arm type and a guide rod type. When the sunshade roller blind is of the rocker arm type, the outer shell is a square outer shell and is provided with at least one arm rod. The arm rod is arranged on the front side or the rear side of the roller blind, and its two ends are respectively fixed to the inner wall of the outer shell and the outer periphery of the pull rod. When the roller blind is retracted, the arm rod is bent and located inside the outer shell.

9. The sunshade roller blind according to claim 7, characterized in that: When the sunshade roller blind is of guide rod type, the shell is a D-shaped shell, and a guide rod is provided on the left and right sides of the roller blind, the tops of the two guide rods are respectively fixed to the left end seat and the right end seat, and both ends of the pull rod have earrings for guiding the roller blind to be pulled down and recovered linearly, and the bottom ends of the two guide rods pass through the two earrings respectively and are fixed to the wall.

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