Roller shutter up-and-down two-way limiting stopper

Abstract

The utility model provides an up-and-down bidirectional limiting stopper for a roller shutter, which comprises a limiting stopper base A, a screw rod fixed with the limiting stopper base A, an adjusting rod sleeved on the limiting stopper base A, and a lower limiting rod sleeved on the screw rod, one end of the lower limiting rod is inserted in the adjusting rod, and the other end of the lower limiting rod is inserted in the adjusting rod. The screw rod can move along the screw rod under the driving of the adjusting rod; a positioning head is fixed to the end, away from the limiter base A, of the screw rod, the screw rod is in threaded connection with a rotating wheel, and the rotating wheel can move between the lower limiting rod and the positioning head. When the rotating wheel abuts against the lower limiting rod, the outer roller shutter is located at the lower limiting position. When the rotating wheel abuts against the positioning head, the external roller shutter is located at an upper limit; the up-and-down bidirectional limiting stopper for the roller shutter overcomes the defects that an existing limiting stopper for the roller shutter is single in limiting direction, and the lower limiting position cannot be adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of roller shutter limit stop, especially to a roller shutter up-down bidirectional limit stop. BACKGROUND

[0002] Roller shutter is one of window decoration products, and is suitable for various places, such as business office building, hotel, restaurant, office, home, and especially large-area glass curtain wall; the roller shutter is made of curtain cloth processed by resin and rolled into a roller shape, and is controlled to rise and fall by using a pull rope or chain; when the roller shutter fabric is put down, indoor light is soft, and direct sunlight is avoided, so that a good sunshade effect is achieved; when the roller shutter is raised, its volume is very small, so that it is not easy to be detected.

[0003] The roller shutter limit stop is an important component in the roller shutter, and is used for lifting and limiting the roller shutter; the existing roller shutter limit stop can only be up-limited or down-limited, that is, the roller shutter can be fixed only at the highest position or the lowest position, the limiting direction is single, and it is inconvenient to use; in addition, the down-limit position of the existing roller shutter limit stop cannot be adjusted, that is, the lowest position of the roller shutter cannot be adjusted, the flexibility is low, and the use range is limited. SUMMARY

[0004] (I) Technical problem to be solved

[0005] The utility model wants to solve the problem of providing a roller shutter up-down bidirectional limit stop to overcome the defects of the existing roller shutter limit stop, such as single limiting direction and unadjustable down-limit position.

[0006] (II) Technical scheme

[0007] To solve the technical problem, the utility model provides a roller shutter up-down bidirectional limit stop, which comprises a limit stop base A, a screw rod fixed with the limit stop base A, an adjusting rod sleeved on the limit stop base A, and a down-limit rod sleeved on the screw rod, one end of the down-limit rod is inserted into the adjusting rod, and the down-limit rod can move along the screw rod under the drive of the adjusting rod; one end of the screw rod away from the limit stop base A is fixed with a positioning head, a rotating wheel is threadedly connected on the screw rod, and the rotating wheel can move between the down-limit rod and the positioning head; when the rotating wheel is positioned on the down-limit rod, the external roller shutter is in the down-limit position; when the rotating wheel is positioned on the positioning head, the external roller shutter is in the up-limit position.

[0008] In some embodiments, the down-limit rod is threadedly connected on the screw rod, and the adjusting rod is rotatably installed on the limit stop base A; when the down-limit position is adjusted, the adjusting rod is rotated, the down-limit rod is rotated and moves along the screw rod.

[0009] In some embodiments, the lower limiting rod has a polygonal limiting wall, and the adjusting rod is provided with a polygonal limiting slot matching the polygonal limiting wall at one end of the lower limiting rod.

[0010] In some embodiments, the limiting seat B is fixed on the limiting seat A, and the adjusting rod is installed between the limiting seat A and the limiting seat B; the adjusting rod is provided with an adjusting gear disc at one end away from the lower limiting rod, and the adjusting gear disc is partially arranged in a cavity formed by the limiting seat A and the limiting seat B and partially arranged outside the cavity.

[0011] In some embodiments, a locking screw is threadedly connected between the limiting seat A and the limiting seat B, and the locking screw is used for locking or unlocking the adjusting gear disc.

[0012] In some embodiments, the lower limiting rod and the positioning head are respectively provided with a screw socket at one end of the rotating wheel, and the rotating wheel is provided with a screw protrusion matching the screw socket at two sides.

[0013] In some embodiments, the lower limiting rod is provided with a limiting flange at one end away from the adjusting rod, and the screw socket is arranged on the limiting flange.

[0014] In some embodiments, a head cover is sleeved on the limiting seat B, and the limiting seat B is provided with an elastic buckle for limiting the head cover; a plurality of first lugs are arranged on the head cover in a ring shape at equal intervals, and a plurality of second lugs are arranged on the rotating wheel in a ring shape at equal intervals.

[0015] In some embodiments, the screw rod is provided with a square insertion rod at one end close to the positioning head, the positioning head is provided with a square insertion hole, the square insertion rod is inserted into the square insertion hole and fastened with the positioning head through a positioning head fastening screw, and the limiting seat A is provided with a connecting rod extended at one end away from the screw rod, and the connecting rod is fixedly connected with the screw rod through a limiting seat fastening screw.

[0016] In some embodiments, a support adapter is inserted into the limiting seat A.

[0017] (Three) beneficial effects

[0018] Compared with the prior art, the up-down bidirectional limiting device for the roller shutter has the following advantages:

[0019] 1) By cooperating the rotating wheel, the positioning head and the lower limiting rod, when the rotating wheel is abutted on the lower limiting rod, the roller shutter is in a lower limit position; when the rotating wheel is abutted on the positioning head, the roller shutter is in an upper limit position; the roller shutter can be up-limited and down-limited, and the up-down bidirectional limiting is convenient to use;

[0020] 2) The adjusting rod is drivenly connected with the lower limiting rod, the adjusting rod drives the lower limiting rod to move along the screw rod by rotating the adjusting rod, so that the position of the lower limiting rod can be changed, the lower limiting position of the roller shutter is changed, the roller shutter can be fixed at any position according to the use requirement, the flexibility is higher, and the application range is wider.

[0021] 3) The adjusting rod is provided with an adjusting tooth disc on one side, the adjusting rod can be rotated by rotating the adjusting tooth disc, the adjusting tooth disc is partially arranged outside the limiting device base, the adjusting tooth disc can be rotated without disassembling the roller shutter, and the adjusting is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 It is a perspective view of the upper and lower bidirectional limiting device of the roller shutter.

[0024] Figure 2 It is another perspective view of the upper and lower bidirectional limiting device of the roller shutter.

[0025] Figure 3 It is a sectional view of the upper and lower bidirectional limiting device of the roller shutter.

[0026] Figure 4 It is an exploded view of the upper and lower bidirectional limiting device of the roller shutter.

[0027] Figure 5 It is a perspective view of the adjusting rod and the lower limiting rod of the upper and lower bidirectional limiting device of the roller shutter.

[0028] Figure 6 It is a perspective view of the locking screw and the adjusting rod of the upper and lower bidirectional limiting device of the roller shutter.

[0029] Figure 7 It is a perspective view of the screw rod, the lower limiting rod, the rotating wheel and the positioning head of the upper and lower bidirectional limiting device of the roller shutter.

[0030] Figure 8 It is a perspective view of the rotating wheel of the upper and lower bidirectional limiting device of the roller shutter.

[0031] The corresponding component names of various reference numerals in the figures are as follows: 1, position limiter base A; 101, connecting rod; 2, screw rod; 201, square insertion rod; 3, adjusting rod; 301, polygonal position limiting groove; 302, adjusting tooth disc; 4, lower position limiting rod; 401, polygonal position limiting wall; 402, screw clasp; 403, position limiting flange; 5, positioning head; 501, square insertion hole; 6, rotating wheel; 601, spiral protrusion; 602, second protruding plate; 7, position limiter base B; 701, elastic buckle; 8, head cover; 801, first protruding plate; 9, positioning head fastening screw; 10, base fixing screw; 11, support adapter; 12, locking screw. DETAILED DESCRIPTION

[0032] The present application will be described in detail below with reference to the drawings and specific embodiments.

[0033] The embodiments of this application are illustrated by way of example in the following drawings and specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosure. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. The present application can also be implemented or applied by other different specific embodiments, and the details in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0034] It should be noted that the various aspects of the embodiments described below are within the scope of the appended claims. It should be apparent that the aspects described herein can be embodied in a wide variety of forms and that any specific structure and / or function described herein is merely illustrative. Based on the teachings herein one skilled in the art should appreciate that an aspect described herein can be implemented independently of any other aspects and that two or more of these aspects can be combined in various ways. For example, an apparatus can be implemented or a method can be practiced using any number of the aspects described herein. In addition, such an apparatus can be implemented or such a method can be practiced using other structure and / or functionality in addition to or other than one or more of the aspects described herein.

[0035] It should also be noted that the drawings provided in the following embodiments are only schematically illustrating the basic concept of the present application, and only the components related to the present application are shown in the drawings, not the number, shape and size of the components when actually implemented, the actual implementation of each component can be a random change in shape, number and proportion, and the layout pattern of its components can be more complex.

[0036] Also in the following description, specific details are provided to thoroughly understand examples. However, one of ordinary skill in the art will appreciate that the examples can be practiced without these specific details.

[0037] The technical solutions provided by the embodiments of the present application are described below with reference to the drawings.

[0038] Referring to Figures 1 to 8 The utility model provides a roll up shutter up and down two -way stopper, including stopper base A1, with the fixed screw rod 2 of stopper base A1, the adjusting lever 3 of casing on stopper base A1 and the lower limit rod 4 of casing on screw rod 2, the lower limit rod 4 one end inserts in adjusting lever 3, and the lower limit rod 4 can be driven along screw rod 2 under adjusting lever 3. The one end fixed with positioning head 5 of screw rod 2 away from stopper base A1, screw rod 2 is connected with the rotating wheel 6 on the screw, and the rotating wheel 6 is located between the lower limit rod 4 and positioning head 5 and can move between the lower limit rod 4 and positioning head 5;When the rotating wheel 6 is supported on the lower limit rod 4, the external roll up shutter is in the lower limit, that is, the roll up shutter is in the lowest position;When the rotating wheel 6 is supported on the positioning head 5, the external roll up shutter is in the upper limit, that is, the roll up shutter is in the highest position. This structure, through the rotating wheel, positioning head and lower limit rod cooperation, can be up and down limit to roll up shutter, can carry out up and down two -way limit, use more convenient.

[0039] In some embodiments, as Figures 1 to 4 shown, the lower limit rod 4 is threadedly connected to the screw rod 2, and the end wall of the lower limit rod 4 facing the rotating wheel 6 is provided with an internal thread adapted to the screw rod 2, and the adjusting lever 3 is rotatably mounted on the stopper base A1. When adjusting the lower limit position, rotate the adjusting lever 3, which drives the lower limit rod 4 to rotate and move along the screw rod 2; as the position of the lower limit rod 4 changes, the lower limit position of the roll up shutter changes, and the roll up shutter can be fixed at any position as required, which is more flexible and has a wider range of applications.

[0040] In some embodiments, as Figure 5 shown, the lower limit rod 4 has a polygonal limiting wall 401, and the end of the adjusting lever 3 facing the lower limit rod 4 is provided with a polygonal limiting groove 301 adapted to the polygonal limiting wall 401, and the polygonal limiting wall 401 is inserted into the polygonal limiting groove 301. Through the cooperation of the polygonal limiting wall 401 and the polygonal limiting groove 301, on the one hand, the adjusting lever 3 can drive the lower limit rod 4 to rotate when it is rotated, and on the other hand, the lower limit rod 4 can be guided to extend and retract.

[0041] In some embodiments, as Figures 1 to 4As shown, the limit stop base A1 is fixed to the limit stop base B7 by multiple screws, and the adjusting rod 3 is installed between the limit stop base A1 and the limit stop base B7; an adjusting tooth disc 302 is arranged at one end of the adjusting rod 3 away from the lower limit stop rod 4, and the adjusting tooth disc 302 is partially arranged in a cavity formed by the limit stop base A1 and the limit stop base B7 and partially arranged outside the cavity. With the structure, the adjusting tooth disc 302 is added, and the adjusting rod 3 can be driven to rotate by means of the adjusting tooth disc 302, so that the adjustment is convenient; in addition, the adjusting tooth disc 302 is partially arranged outside the cavity, so that the roller shutter does not need to be disassembled during adjustment, and the adjustment is convenient.

[0042] In some embodiments, as shown in Figures 1 to 4 , Figure 6 , the limit stop base A1 and the limit stop base B7 are threadedly connected with a locking screw 12, and the locking screw 12 is used to lock or unlock the adjusting tooth disc 302. When the lower limit position needs to be adjusted, the locking screw 12 needs to be screwed away from the adjusting tooth disc 302 to unlock the adjusting tooth disc 302, and after unlocking, the adjusting tooth disc 302 can be poked to rotate the adjusting rod 3, and then the lower limit position is adjusted; after adjustment, the locking screw 12 needs to be screwed to be re-inserted into the tooth groove of the adjusting tooth disc 302 to lock the adjusting tooth disc 302.

[0043] In some embodiments, as shown in Figure 1 , Figure 7 , and Figure 8 , the lower limit stop rod 4 and the positioning head 5 are respectively provided with a screw clamp 402 at one end facing the rotating wheel 6, and the two sides of the rotating wheel 6 are respectively provided with a screw protrusion 601 matched with the screw clamp 402. In the up and down limiting, the screw protrusion 601 can be clamped into the corresponding screw clamp 402 to prevent the rotating wheel 6 from rotating, thereby improving the limiting effect.

[0044] In some embodiments, as shown in Figure 1 , and Figure 3 , the lower limit stop rod 4 is provided with a limiting flange 403 at one end away from the adjusting rod 3, the outer diameter of the limiting flange 403 is greater than the outer diameter of the adjusting rod 3, and the screw clamp 402 is arranged on the limiting flange 403. The limiting flange 403 can limit the lower limit stop rod 4, avoid the lower limit stop rod 4 from being completely retracted into the adjusting rod 3, and ensure the use effect.

[0045] In some embodiments, as shown in Figure 1 , Figure 3 , and Figure 8As shown, the head cover 8 is sleeved on the position limiter base B7, and the head cover 8 can rotate relative to the position limiter base B7. The position limiter base B7 is provided with an elastic buckle 701 for limiting the head cover 8, so as to prevent the head cover 8 from being separated from the position limiter base B7. The elastic buckle 701 and the position limiter base B7 are an integral plastic part, the elastic buckle 701 has a through hole on the outer periphery to have a certain elasticity, and the head cover 8 is conveniently sleeved. The first protruding plate 801 is annularly and equidistantly arranged on the head cover 8, and the second protruding plate 602 is annularly and equidistantly arranged on the rotating wheel 6. When the position limiter is sleeved on the roller shutter pipe, the roller shutter pipe is sleeved on the head cover 8 and the rotating wheel 6. The arrangement of the first protruding plate 801 and the second protruding plate 602 can tightly fix the pipe with the head cover 8 and the rotating wheel 6, so as to avoid relative rotation. After the position limiter is sleeved on the pipe, the roller shutter head is installed on the end of the roller shutter pipe away from the position limiter. The roller shutter head has a pull bead, and the pipe is rotated by pulling the pull bead to lift the roller shutter. When the roller shutter is lifted, the rotating wheel 6 is rotated, and the rotating wheel 6 is moved along the screw rod 2. The lower limit rod 4 and the positioning head 5 on both sides of the rotating wheel 6 can limit the rotating wheel 6.

[0046] In some embodiments, as shown in Figure 2 and Figure 4 As shown, the square insertion rod 201 is arranged at one end of the screw rod 2 close to the positioning head 5, the square insertion hole 501 is arranged in the positioning head 5, the square insertion rod 201 is inserted into the square insertion hole 501 and is fastened with the positioning head 5 through the positioning head fastening screw 9. The connecting rod 101 is arranged at one end of the position limiter base A1 extending towards the screw rod 2, and the connecting rod 101 is fixedly connected with the screw rod 2 through the base fixing screw 10. In order to facilitate the connection with the external support, the support adapter 11 is inserted into the position limiter base A1.

[0047] In the specification, the same and similar parts of each embodiment can be referred to each other, and each embodiment focuses on the difference from other embodiments.

[0048] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A roller shutter bidirectional limiter, characterized in that: The application relates to a position limiter for an external roller shutter, which comprises a position limiter base A (1), a screw rod (2) fixed on the position limiter base A (1), an adjusting rod (3) sleeved on the position limiter base A (1), and a lower position limiting rod (4) sleeved on the screw rod (2), wherein one end of the lower position limiting rod (4) is inserted into the adjusting rod (3) and can move along the screw rod (2) under the drive of the adjusting rod (3); one end of the screw rod (2) away from the position limiter base A (1) is fixed with a positioning head (5), and a rotating wheel (6) is threadedly connected on the screw rod (2), wherein the rotating wheel (6) can move between the lower position limiting rod (4) and the positioning head (5); when the rotating wheel (6) is abutted against the lower position limiting rod (4), the external roller shutter is in the lower limit position; when the rotating wheel (6) is abutted against the positioning head (5), the external roller shutter is in the upper limit position.

2. The up-and-down bidirectional position limiter of the roller blind according to claim 1, characterized in that: The lower position limiting rod (4) is threadedly connected on the screw rod (2), and the adjusting rod (3) is rotatably installed on the position limiter base A (1); when the lower limit position is adjusted, the adjusting rod (3) is rotated, and the lower position limiting rod (4) rotates and moves along the screw rod (2).

3. The up-and-down bidirectional position limiter of the roller blind according to claim 2, characterized in that: The lower position limiting rod (4) has a polygonal position limiting wall (401), and one end of the adjusting rod (3) towards the lower position limiting rod (4) is provided with a polygonal position limiting groove (301) matched with the polygonal position limiting wall (401).

4. The up-and-down bidirectional position limiter of the roller blind according to claim 2, characterized in that: The position limiter base B (7) is fixed on the position limiter base A (1), the adjusting rod (3) is installed between the position limiter base A (1) and the position limiter base B (7), one end of the adjusting rod (3) away from the lower position limiting rod (4) is provided with an adjusting tooth disc (302), and the adjusting tooth disc (302) is partially arranged in a cavity formed by the position limiter base A (1) and the position limiter base B (7) and partially arranged outside the cavity.

5. The up-and-down bidirectional position limiter of the roller blind according to claim 4, characterized in that: The position limiter base A (1) and the position limiter base B (7) are threadedly connected with a locking screw (12) for locking or unlocking the adjusting tooth disc (302).

6. The up-and-down bidirectional position limiter of the roller blind according to claim 1, characterized in that: One end of the lower position limiting rod (4) and the positioning head (5) towards the rotating wheel (6) is respectively provided with a screw clasp (402), and the two sides of the rotating wheel (6) are respectively provided with screw protrusions (601) matched with the screw clasps (402).

7. The up-and-down bidirectional position limiter of the roller blind according to claim 6, characterized in that: One end of the lower position limiting rod (4) away from the adjusting rod (3) is provided with a position limiting flange (403), and the screw clasps (402) are arranged on the position limiting flange (403).

8. The up-and-down bidirectional position limiter of claim 4, wherein: A head cover (8) is sleeved on the position limiter base B (7), the position limiter base B (7) is provided with elastic buckles (701) for limiting the head cover (8); a plurality of first lugs (801) are annularly and equidistantly arranged on the head cover (8), and a plurality of second lugs (602) are annularly and equidistantly arranged on the rotating wheel (6).

9. The up-and-down bidirectional position limiter of claim 1, wherein: The screw rod (2) is provided with a square insertion rod (201) near one end of the positioning head (5), the positioning head (5) is provided with a square insertion hole (501), the square insertion rod (201) is inserted into the square insertion hole (501) and is fastened with the positioning head (5) through a positioning head fastening screw (9); one end of the limiting device base A (1) extending towards the screw rod (2) is provided with a connecting rod (101), and the connecting rod (101) is fixedly connected with the screw rod (2) through a base fixing screw (10).

10. The up-and-down bidirectional position limiter of claim 1, wherein: The limiting device base A (1) is provided with a bracket adapter (11) inserted therein.

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