Pulling and stopping device and pulling and stopping type house window sunshade curtain

Abstract

The utility model discloses a device capable of being pulled and stopped at any time and a window sunshade curtain capable of being pulled and stopped at any time. The device comprises a reel, a tail plug, a self-locking rod, a fixing rod and a torsional spring. The reel is of a hollow structure, the tail plugs are inserted into the two ends of the reel, each tail plug comprises an insertion part and a fixing part integrally formed with the insertion part, a containing cavity is formed in the insertion part, a first insertion hole is formed in the middle of the fixing part, the self-locking rod is inserted into the containing cavity of the insertion part, the reel and the tail plugs can rotate relative to the self-locking rod, and a second insertion hole is formed in the self-locking rod. The fixing rod is located in the reel, and the two ends of the fixing rod penetrate through the first insertion holes and are inserted into the second insertion holes. One end of the torsion spring is fixed on the fixed rod, and the other end of the torsion spring is fixed on the fixed part; a straight groove is formed in the inner wall of the containing cavity in a concave mode, a rolling groove and a self-locking groove which are communicated with each other are formed in the outer wall of the self-locking rod, and rolling balls are clamped between the straight groove and the rolling groove. The sunshade curtain comprises a sunshade roller shutter and the device capable of stopping at any time after pulling, and one end of the sunshade roller shutter is wound on the reel.

Description

Technical Field

[0001] The utility model relates to the technical field of curtains, and in particular to a pull-and-stop device and a pull-and-stop home window sunshade. Background Art

[0002] For ease of use, existing sunshades generally have the function of stopping at will, such as Patent No. 202010373478.4 discloses a pull-and-stop sunshade, including a frame assembly, a slide rail, a curtain, a sunshade beam, a reel, a slider and a roller mechanism, the roller mechanism including a winding roller, a torsion spring, a torsion spring fixing block, a winding roller group and a pull wire. The sunshade reel force changes the direction of the force through the pull wire and the roller, achieves a force balance on the slider, and enables the slider to stop at any position on the slide rail, that is, the sunshade can be pulled and stopped. Although this sunshade can stop at will, it has many components, which makes its operation process and production process complicated. Therefore, further improvement is needed to simplify the structure of the pull-and-stop sunshade. Utility Model Content

[0003] The technical problem to be solved by the utility model is that, in view of the above-mentioned deficiencies in the prior art, a pull-and-stop device and a pull-and-stop home window sunshade are proposed.

[0004] In the first aspect, the utility model provides a pull-and-stop device, comprising a reel, a tail plug, a self-locking rod, a fixing rod and a torsion spring; the reel is a hollow structure, the tail plug is inserted at both ends of the reel, the tail plug comprises a plug-in portion and a fixing portion integrally formed with the plug-in portion, a receiving cavity is provided inside the plug-in portion, a first plug hole is provided in the middle of the fixing portion, the self-locking rod is inserted in the receiving cavity of the plug-in portion, the reel and the tail plug can rotate relative to the self-locking rod, a second plug hole is provided inside the self-locking rod, the fixing rod is located in the reel, and both ends of the fixing rod respectively pass through the first plug hole and are inserted in the second plug hole; the torsion spring is sleeved on the fixing rod, one end of the torsion spring is fixed to the fixing rod, and the other end is fixed to the fixing portion;

[0005] The inner wall of the accommodating cavity is concave with a straight groove along the length direction, and the outer wall of the self-locking rod is provided with a rolling groove and a self-locking groove which are interconnected. A rolling ball is clamped between the straight groove and the rolling groove. When the reel is rotated, the straight groove drives the ball to roll in the rolling groove. When the reel stops rotating, the straight groove drives the ball to self-lock and limit in the self-locking groove.

[0006] Preferably, the outer end of the self-locking rod is connected to a fixed bracket via a connecting frame, and the fixed bracket is located on one side of the self-locking rod.

[0007] Preferably, an annular protrusion is provided on the inner wall of the accommodating cavity, and an annular groove matching the annular protrusion is provided on the outer wall of the self-locking rod.

[0008] Preferably, a limiting flange is provided at one end of the plug-in portion away from the fixing portion, and the limiting flange abuts against the end of the reel.

[0009] In a second aspect, the utility model also provides a pull-and-stop home window sunshade curtain, comprising a sunshade roller curtain and the above-mentioned pull-and-stop device, wherein one end of the sunshade roller curtain is wound on a reel.

[0010] Preferably, one end of the sunshade roller blind away from the rolling shaft is fixedly connected to a crossbeam.

[0011] Preferably, a pull ring is fixedly provided on the crossbeam.

[0012] Beneficial effects of the utility model:

[0013] The utility model discloses a pull-and-stop device and a pull-and-stop home window sunshade. When the reel is rotated, the tail plugs plugged at both ends of the reel also rotate accordingly, so that the straight groove of the plug-in portion drives the ball to roll along the rolling groove. Since one end of the torsion spring is fixed to the fixed rod and the other end is fixed to the fixed part of the tail plug, when the tail plug rotates, the torsion spring is in a state of twisting and storing force; when the reel stops rotating, the straight groove drives the ball to enter the self-locking groove, and the force direction of the ball interacts with the supporting force of the self-locking groove, so that the ball stops rolling and realizes self-locking limit. When the reel needs to be restored to its original position, the reel continues to rotate in the same direction, and the straight groove drives the ball to move out of the self-locking groove, releases the self-locking state of the ball, and the ball continues to roll back to the rolling groove, so that the reel and the tail plug are restored by the elastic force of the torsion spring until the torsion spring returns to the initial state, and the reel is restored to its original position. Among them, the fixed rod provided can make the reel of the device keep synchronization on both sides when rotating or restoring, and also make the torsion spring force storage or force release process more stable. The sunshade curtain realizes the function of pulling and stopping by installing the above device, and is very convenient to use. In addition, the utility model has a simple structure and is easy to install, and can be widely used as a sunshade for windows in residences or office places. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] For ease of explanation, the present invention is described in detail by the following specific implementations and drawings.

[0015] Figure 1 This is a schematic diagram of the overall structure of the pull-and-stop device of this embodiment;

[0016] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0017] Figure 3 This is a schematic diagram of the internal structure of the pull-and-stop device of this embodiment;

[0018] Figure 4 is a cross-sectional view of the pull-and-stop device of this embodiment;

[0019] Figure 5 for Figure 4 The enlarged view of point B in the middle;

[0020] Figure 6 It is a schematic structural diagram of the pull-and-go curtain of this embodiment.

[0021] In the figure:

[0022] 100- reel; 200- tail plug; 210- plug-in part; 211- accommodating chamber; 212- straight groove; 213- annular protrusion; 214- limiting flange; 220- fixing part; 221- socket one; 300- self-locking rod; 310- socket two; 320- rolling groove; 330- self-locking groove; 340- connecting frame; 350- annular groove; 400- fixing rod; 500- torsion spring; 600- ball bearing; 700- fixing bracket; 800- sunshade roller blind; 900- crossbeam; 910- pull ring. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments; in the following description, specific details such as specific configurations and components are provided only to help fully understand the embodiments of the present invention. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. In addition, for the sake of clarity and brevity, the description of known functions and structures is omitted.

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0025] like Figure 1-5As shown, a pull-and-stop device provided by the present embodiment includes a reel 100, a tail plug 200, a self-locking rod 300, a fixing rod 400 and a torsion spring 500; wherein the reel 100 is a hollow structure, the tail plug 200 is inserted at both ends of the reel 100, the tail plug 200 includes a plug-in portion 210 and a fixing portion 220 integrally formed with the plug-in portion 210, a receiving cavity 211 is provided inside the plug-in portion 210, a plug hole 221 is provided in the middle of the fixing portion 220, the self-locking rod 300 is inserted in the receiving cavity 211 of the plug-in portion 210, and the reel 100 and the tail plug can be relatively locked with the self-locking rod 30 0 is rotated, a second insertion hole 310 is provided inside the self-locking rod 300, the fixing rod 400 is located in the reel 100, and both ends of the fixing rod 400 respectively pass through the first insertion hole 221 and are inserted into the second insertion hole 310; the torsion spring 500 is sleeved on the fixing rod 400, one end of the torsion spring 500 is fixed to the fixing rod 400, and the other end is fixed to the fixing portion 220; the inner wall of the accommodating cavity 211 is concave with a straight groove 212 along the length direction, and the outer wall of the self-locking rod 300 is provided with a rolling groove 320 and a self-locking groove 330 that are connected to each other, and a rolling ball 600 is clamped between the straight groove 212 and the rolling groove 320.

[0026] Specifically, when the reel 100 is rotated, the tail plug 200 plugged at both ends of the reel 100 also rotates accordingly, so that the straight groove 212 of the plug-in portion 210 drives the ball 600 to roll along the rolling groove 320. Since one end of the torsion spring 500 is fixed to the fixing rod 400 and the other end is fixed to the fixing portion 220 of the tail plug 200, when the tail plug 200 rotates, the torsion spring 500 is in a state of torsion storage; when the reel 100 stops rotating, the straight groove 212 drives the ball 600 to enter the self-locking groove 330, and the force direction of the ball 600 interacts with the supporting force of the self-locking groove 330, so that the ball 600 stops rolling, thereby realizing self-locking limit. When the reel 100 needs to be restored to its original position, the reel 100 is continuously rotated in the same direction, and the straight groove 212 drives the ball 600 to move out of the self-locking groove 330, releasing the self-locking state of the ball 600, and the ball 600 continues to roll back into the rolling groove 320, so that the reel 100 and the tail plug 200 are restored by the elastic force of the torsion spring 500 until the torsion spring 500 returns to the initial state, and the reel 100 is also restored to its original position. The fixed rod 400 provided in this embodiment can keep the reel 100 of the device synchronous on both sides when rotating or restoring, and also make the torsion spring 500 force storage or release process more stable.

[0027] Furthermore, the outer end of the self-locking rod 300 of this embodiment is connected to a fixing bracket 700 through a connecting bracket 340. The fixing bracket 700 is located on one side of the self-locking rod 300. The device can be installed and fixed at a specified position through the fixing bracket 700.

[0028] Furthermore, in this embodiment, an annular protrusion 213 is provided on the inner wall of the accommodating cavity 211, and an annular groove 350 matching the annular protrusion 213 is provided on the outer wall of the self-locking rod 300. When the self-locking rod 300 is inserted into the accommodating cavity 211, the annular protrusion 213 is inserted into the annular groove 350 to avoid axial displacement between the tail plug 200 and the self-locking rod 300.

[0029] Furthermore, a limiting flange 214 is provided at one end of the plug-in portion 210 away from the fixing portion 220 of the present embodiment. The limiting flange 214 abuts against the end of the reel 100 to limit the position of the tail plug 200 and prevent the tail plug 200 from completely entering the reel 100 .

[0030] like Figure 6 As shown, the present embodiment also provides a pull-and-stop type home window sunshade, comprising a sunshade roller blind 800 and the above-mentioned pull-and-stop device, one end of the sunshade roller blind 800 is wound on the reel 100, and the end of the sunshade roller blind 800 away from the reel 100 is fixedly connected to a crossbeam 900, and a pull ring 910 is fixedly provided on the crossbeam 900.

[0031] Specifically, when in use, the sunshade curtain of this embodiment is fixed on the window by the fixing bracket 700, and the pull ring 910 is pulled, and the sunshade roller curtain 800 is pulled down to drive the reel 100 to rotate, and the pulling is stopped after reaching a suitable position, and the sunshade roller curtain 800 stays at this position. If the sunshade roller curtain 800 needs to be retracted, the sunshade roller curtain 800 is pulled down a certain distance, and the sunshade roller curtain 800 returns to the original position under the elastic force of the torsion spring 500. The sunshade curtain of this embodiment can be pulled and stopped at any time, and is very convenient to use.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] In the description of the present application, it should be understood that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] Those skilled in the art to which the present application belongs may make various modifications or additions to the described specific embodiments or replace them in a similar manner, but they will not deviate from the spirit of the present application or exceed the scope defined by the attached claims.

Claims

1. A pull-and-stop device, characterized in that: include: A reel (100), a tail plug (200), a self-locking rod (300), a fixing rod (400) and a torsion spring (500); the reel (100) is a hollow structure, the tail plug (200) is inserted at both ends of the reel (100), the tail plug (200) comprises a plug-in portion (210) and a fixing portion (220) integrally formed with the plug-in portion (210), a receiving cavity (211) is provided inside the plug-in portion (210), a plug hole (221) is provided in the middle of the fixing portion (220), the self-locking rod (300) is inserted in the plug-in portion ( The reel (100) and the tail plug are arranged in a receiving cavity (211) of the self-locking rod (210), the reel (100) and the tail plug can rotate relative to the self-locking rod (300), a second plug hole (310) is arranged inside the self-locking rod (300), the fixing rod (400) is located in the reel (100), and both ends of the fixing rod (400) respectively pass through the first plug hole (221) and are inserted in the second plug hole (310); the torsion spring (500) is sleeved on the fixing rod (400), one end of the torsion spring (500) is fixed to the fixing rod (400), and the other end is fixed to the fixing portion (220); The inner wall of the accommodating cavity (211) is concave with a straight groove (212) along the length direction, and the outer wall of the self-locking rod (300) is provided with a rolling groove (320) and a self-locking groove (330) that are interconnected. A rollable ball (600) is clamped between the straight groove (212) and the rolling groove (320). When the reel (100) is rotated, the straight groove (212) drives the ball (600) to roll in the rolling groove (320); when the reel (100) stops rotating, the straight groove (212) drives the ball (600) to self-lock and limit in the self-locking groove (330).

2. The pull-and-stop device according to claim 1, characterized in that: The outer end of the self-locking rod (300) is connected to a fixing bracket (700) via a connecting bracket (340), and the fixing bracket (700) is located on one side of the self-locking rod (300).

3. The pull-and-stop device according to claim 1, characterized in that: An annular protrusion (213) is provided on the inner wall of the accommodating cavity (211), and an annular groove (350) matching the annular protrusion (213) is provided on the outer wall of the self-locking rod (300).

4. The pull-and-stop device according to claim 1, characterized in that: A limiting flange (214) is provided at one end of the plug-in portion (210) away from the fixing portion (220), and the limiting flange (214) abuts against the end of the reel (100).

5. A pull-and-stop home window sunshade, characterized in that: It comprises a sunshade roller blind (800) and a pull-and-stop device as claimed in any one of claims 1 to 4, wherein one end of the sunshade roller blind (800) is wound on a reel (100).

6. The pull-and-stop home window sunshade according to claim 5, characterized in that: One end of the sunshade roller blind (800) away from the roller shaft (100) is fixedly connected to a crossbeam (900).

7. The pull-and-stop home window sunshade according to claim 6, characterized in that: A pull ring (910) is fixedly arranged on the crossbeam (900).

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