Limiting device for preventing roller shutter door connecting piece from derailing

Abstract

The utility model relates to a limiting device for preventing a roller shutter door connecting piece from derailing, and the limiting device comprises a limiting assembly, the limiting assembly comprises a bottom plate, one side of the bottom plate is fixedly provided with an arc-shaped guide plate perpendicular to the bottom plate, the bottom plate is provided with a son buckle and a mother buckle which are used for being connected to the connecting piece in a positioning mode, and the son buckle and the mother buckle are arranged in a matched mode; when the two bottom plates are symmetrically attached and installed, the son buckle can be inserted into the mother buckle. According to the utility model, the limiting assembly adopts a one-time die-casting forming technology, and can be produced by a plurality of dies together, so that the cost is effectively reduced; an arc-shaped contact surface and a nylon material are adopted, so that the running friction resistance is effectively reduced, and the running noise is reduced; and the contact surface of the arc-shaped guide plate and the track adopts an arc-shaped structure, and the traditional surface contact is changed into point contact, so that the running friction resistance is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of rolling shutter doors, and in particular relates to a limiting device for preventing a rolling shutter door from being derailed. Background Art

[0002] There are two solutions for the common wind-resistant rolling shutter doors on the market to prevent the rolling shutter doors from going off the track. One is to use an external wind-resistant rod, and the other is to install a Z-shaped steel sheet on the door panel as a wind-resistant hook to prevent the rolling shutter door from derailing. The processing of the wind-resistant hook requires multiple processes such as folding and punching. Both of these anti-detachment devices are generally made of steel structure, which causes a large abnormal noise when rubbed against the track and is easy to get stuck on the track. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to solve the deficiencies in the prior art, thereby providing a limiting device for preventing a rolling shutter door from being derailed, which can be applicable to most tracks on the existing market and has a relatively small friction resistance.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A limiting device for preventing a rolling door from being derailed comprises:

[0006] The limiting assembly includes a base plate, one side of which is fixedly provided with an arc-shaped guide plate perpendicular to the base plate, and the base plate is provided with a sub-buckle and a female buckle for positioning the sub-buckle and the female buckle connected to the connecting piece. The sub-buckle and the female buckle are matched with each other, and when the two base plates are symmetrically installed, the sub-buckle can be inserted into the female buckle.

[0007] Preferably, in the limiting device for preventing a rolling door link from derailing of the utility model, reinforcing ribs are fixedly connected between the bottom plate and the arc-shaped guide plate.

[0008] Preferably, in the utility model, a limiting device for preventing a rolling door link from derailing, the sub-buckle can be plugged into the mother buckle and is provided with a central through hole, and the central through hole is used for plugging in a bolt.

[0009] Preferably, the utility model provides a limiting device for preventing a rolling door link from derailing, wherein the sub-buckle can be inserted into a countersunk hole provided with a connecting center through hole at one end of the female buckle near the arc-shaped guide plate, and the countersunk hole is used for the cap head and nut of the built-in bolt.

[0010] Preferably, in the utility model, a limiting device for preventing a rolling shutter door from derailing is provided with two groups of limiting components, and the positions of the sub-buckles and the female buckles on the bottom plates of the two groups of limiting components are interchangeably arranged.

[0011] Preferably, in the limiting device for preventing a rolling shutter door from derailing according to the utility model, the arc guide plate is made of nylon material or a wrapping layer of nylon material is provided on the outer side of the arc guide plate.

[0012] Preferably, a limiting device for preventing a rolling shutter door connecting piece from derailing according to the utility model further includes a track, in which a connecting piece is slidably arranged along its length direction, and a limiting assembly is respectively connected to two side walls of the connecting piece located in the track, and the male and female buckles of the two limiting assemblies are plugged in and locked with bolts.

[0013] Preferably, in the limiting device for preventing a rolling door link from derailing of the utility model, the outer side surface of the arc-shaped guide plate is in sliding contact with the end of the track.

[0014] The beneficial effects of the utility model are:

[0015] (1) The limit assembly of the utility model adopts a one-time die-casting technology, and multiple molds can be produced together, which effectively reduces the cost;

[0016] (2) The arc-shaped contact surface and nylon material are used to effectively reduce the running friction resistance and reduce the running noise;

[0017] (3) The contact surface between the arc guide plate and the rail adopts an arc-shaped structure, which changes from traditional surface contact to point contact, reducing the running friction resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 is a schematic diagram of the three-dimensional structure of the limit assembly of an embodiment of the present application;

[0020] Figure 2 is a schematic diagram of the side view structure of the limit assembly of an embodiment of the present application;

[0021] Figure 3 is a schematic top view of the installation structure of the limit assembly of an embodiment of the present application;

[0022] The reference numerals in the figure are:

[0023] The limiting assembly 10 , the bottom plate 11 , the arc-shaped guide plate 12 , the male buckle 13 , the female buckle 14 , the track 20 , and the connecting piece 21 . DETAILED DESCRIPTION

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

[0025] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions 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 cannot be understood as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention, unless otherwise specified, "multiple" means two or more.

[0026] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0027] The technical solution of the present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0028] Example

[0029] This embodiment provides a limiting device for preventing a rolling door from derailing, comprising:

[0030] Two limit assemblies 10 with symmetrical structural design are used together as a group. The limit assemblies 10 include a base plate 11. An arc-shaped guide plate 12 perpendicular to the base plate 11 is fixedly provided on one side of the base plate 11. Reinforcing ribs are fixedly connected between the base plate 11 and the arc-shaped guide plate 12 to improve the connection strength between the base plate 11 and the arc-shaped guide plate 12. The base plate 11 is provided with a sub-buckle 13 and a female buckle 14 for positioning the connection on the connecting piece. The sub-buckle 13 and the female buckle 14 are matched with each other. When the two base plates 11 are symmetrically installed, the sub-buckle 13 can be inserted into the female buckle 14.

[0031] Preferably, in the present embodiment, a limiting device for preventing a rolling shutter door from derailing is provided, in which the sub-buckle 13 can be plugged into the mother buckle 14 and both are provided with a center through hole, the center through hole is used for inserting bolts, the sub-buckle 13 can be plugged into the mother buckle 14 and is provided with a countersunk hole connected to the center through hole near one end of the arc guide plate 12, the countersunk hole is used for the cap head and nut of the built-in bolt, the sub-buckle 13 and the mother buckle 14 are arranged on the protruding bottom plate 11 away from one end of the arc guide plate 12, and the sub-buckle 13 can be inserted into the center through hole of the mother buckle 14.

[0032] Preferably, in the limiting device for preventing the rolling shutter door from derailing of the embodiment, the difference between the two sets of limiting components 10 is that the positions of the sub-buckle 13 and the female buckle 14 on the bottom plate 11 are interchanged, and the other structures remain the same.

[0033] Preferably, in the present embodiment, a limit device for preventing a rolling shutter door from derailing, the limit component 10 is made of nylon material by one-time injection molding, and does not require multiple processes such as bending and punching like the existing wind-resistant hooks, thereby effectively reducing labor costs. The nylon material is used to contact the track, has smaller friction resistance, and reduces operating noise.

[0034] Preferably, a limiting device for preventing a rolling shutter door connecting piece from derailing in the present embodiment further includes a track 20, and a connecting piece 21 slides on the track 20 along the length direction of the track 20, and a limiting component 10 is respectively connected to the two side walls of each connecting piece 21 located inside the track 20. During installation, the sub-buckles 13 and the female buckles 14 of the two limiting components 10 are plugged in and locked with bolts, and the outer side surface of the arc guide plate 12 slides in contact with the port of the track 20.

[0035] In actual use, when encountering strong winds and the connected pieces are deformed and pulled out, the limit device of the present invention can prevent the connected pieces from being pulled out to a limited extent. During normal operation, the outer side surface of the arc guide plate 12 is arc-shaped, and the arc guide plate 12 is in point contact with the track. At the same time, the arc guide plate 12 is made of nylon, which can effectively reduce noise and friction resistance.

[0036] Based on the above ideal embodiments of this application, the relevant staff can make various changes and modifications without departing from the technical concept of this application through the above description. The technical scope of this application is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A limiting device for preventing a rolling door from derailing, characterized in that: include: A limit assembly (10), the limit assembly (10) comprising a base plate (11), one side of the base plate (11) being fixedly provided with an arc-shaped guide plate (12) perpendicular to the base plate (11), the base plate (11) being provided with a sub-button (13) and a female button (14) for positioning and connecting to the connecting piece, the sub-button (13) and the female button (14) being matched, and when the two base plates (11) are symmetrically fitted and installed, the sub-button (13) can be plugged into the female button (14); The arc-shaped guide plate (12) is made of nylon or the outer side surface of the arc-shaped guide plate (12) is provided with a wrapping layer made of nylon; It also comprises a track (20), wherein a connecting piece (21) is slidably arranged in the track (20) along its length direction, and a limiting assembly (10) is respectively connected to two side walls of the connecting piece (21) located in the track (20), and the male buckles (13) and the female buckles (14) of the two limiting assemblies (10) are plugged in and locked with bolts; The outer side surface of the arc-shaped guide plate (12) is in sliding contact with the end of the track (20).

2. A limiting device for preventing a rolling door from derailing according to claim 1, characterized in that: A reinforcing rib is fixedly connected between the bottom plate (11) and the arc-shaped guide plate (12).

3. A limiting device for preventing a rolling door from derailing according to claim 2, characterized in that: The sub-button (13) can be plugged into the main button (14) and is provided with a central through hole, wherein the central through hole is used for plugging a bolt.

4. A limiting device for preventing a rolling shutter door from derailing according to claim 3, characterized in that: The sub-buckle (13) can be plugged into the female buckle (14) which is provided with a countersunk hole connected to the central through hole at one end close to the arc-shaped guide plate (12), and the countersunk hole is used for the cap head and nut of the built-in bolt.

5. A limiting device for preventing a rolling door from derailing according to claim 4, characterized in that: The position limiting components (10) are provided in two groups, and the positions of the sub-buttons (13) and the female buttons (14) on the bottom plates (11) of the two groups of position limiting components (10) are interchangeably arranged.

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