Bottom beam profile for automatic door

Abstract

The utility model belongs to the technical field of electric retractable doors, and particularly relates to a bottom beam profile for an automatic door, a supporting roller mounting cavity is arranged on the lower portion of the cross section of the bottom beam profile, a downward opening is formed in the supporting roller mounting cavity, an upper guide groove and a lower guide groove are formed in the same side of the supporting roller mounting cavity, and openings are formed in the upper guide groove and the lower guide groove. Openings of the upper guide groove and the lower guide groove face the outer side. Compared with the prior art, the bottom beam section bar for the automatic door is more reasonable in structure, as the upper circulating rope guide groove and the lower circulating rope guide groove are both opened towards the side faces, the bottom faces of the guide grooves can support the circulating ropes, the circulating ropes cannot be exposed, the circulating ropes are prevented from being damaged, the protection effect is achieved, and meanwhile the appearance of the retractable door is more attractive.

Description

Technical Field

[0001] This utility model relates to a bottom beam profile for automatic doors, belonging to the field of electric retractable door technology. Background Technology

[0002] Electric retractable gates mainly consist of a gate body, a drive unit, and a control system. The gate body is generally made of aluminum alloy profiles, and it is flexible and has a large extension range, making it widely applicable in various occasions as a movable fence.

[0003] The applicant's patent application (CN202210747579.2) filed in 2022, discloses an electric sliding door transmission structure and sliding door. This structure transmits the door's own movement to a power transmission bracket via a circulating pulley and rope, which then directly drives the next door panel, thus achieving rapid and stable sliding door movement. The working principle has been described in detail in the cited patent and will not be elaborated upon here.

[0004] Because the lower part of the original profile is a single, integrated support roller mounting cavity for housing the support rollers of the main drive mounting bracket, and lacks a dedicated mounting cavity for the circulating rope, the circulating rope is exposed, making it susceptible to damage and unsightly. The applicant subsequently improved the profile and filed a utility model patent application with patent number 2023201423192. Figure 1 , 2 As shown, although the circulation rope installation cavity is set up, which solves the above problems to a certain extent and plays a guiding and protective role, the lower cavity opening faces downwards, and the circulation rope is easily exposed from the lower opening, which is not only unsightly but also easily damaged. Utility Model Content

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a bottom beam profile for automatic doors with two lateral circulating rope guide grooves to solve the above problems.

[0006] The bottom beam profile for automatic doors described in this utility model has a support roller mounting cavity at the lower part of its cross-section. The support roller mounting cavity has a downward opening. An upper guide groove and a lower guide groove are provided on the same side of the support roller mounting cavity. Both the upper guide groove and the lower guide groove also have openings, and the openings of the upper guide groove and the lower guide groove face outwards.

[0007] In this invention, a slider is installed inside the upper guide groove. The slider is linked to the circulating rope, and the upper section of the circulating rope is also located inside the upper guide groove. The opening in the upper guide groove is used to connect the slider to the connecting piece, and the slider is connected to the next door panel through the connecting piece. The lower section of the circulating rope is located inside the lower guide groove, and the end of the circulating rope is fixed to the rope end fixing bracket. Since both the upper and lower circulating rope guide grooves open to the side, the bottom surface of the guide groove supports the circulating rope and prevents it from being exposed, thus providing both protection and aesthetic appeal.

[0008] Preferably, the sum of the heights of the upper guide groove and the lower guide groove is consistent with the height of the support roller mounting cavity.

[0009] Since a slider will be installed inside the upper guide groove, the height of the upper guide groove is set to be greater than the height of the lower guide groove.

[0010] Preferably, the upper guide groove and the lower guide groove have the same width.

[0011] The advantages of this utility model compared with the prior art are:

[0012] The bottom beam profile for automatic doors described in this utility model is more reasonable compared with the previous structure. Since both the upper and lower circulating rope guide grooves are open to the side, the bottom surface of the guide groove will support the circulating rope and prevent it from being exposed, thus avoiding damage to the circulating rope and playing a protective role. At the same time, the appearance of the telescopic door is also more beautiful. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the cross-section of the bottom beam profile in the existing technology;

[0014] Figure 2 This is a schematic diagram of the connection structure between doors in the prior art;

[0015] Figure 3 This is a structural schematic diagram of the cross-section of the door bottom beam profile of this utility model;

[0016] Figure 4 This is a schematic diagram of the connection structure between the door panels of this utility model.

[0017] In the diagram: 1. Support roller mounting cavity; 2. Upper guide groove; 3. Lower guide groove; 4. Support roller; 5. Drive wheel; 6. Slider; 7. Rope end fixing bracket; 8. Circulating rope. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments.

[0019] However, the description of this utility model is only a structural or even functional description of the embodiments, and the scope of the utility model is not limited by the embodiments described herein.

[0020] For example, multiple embodiments may have various modifications and forms, and it should be understood that the scope of this utility model includes equivalents that can realize the technical concept.

[0021] like Figure 3As shown, this embodiment is achieved through the following technical solution: the lower part of the cross section of the bottom beam profile is a support roller mounting cavity 1. The support roller mounting cavity 1 has a downward opening. On the same side of the support roller mounting cavity 1, there are upper guide grooves 2 and lower guide grooves 3. The openings of the upper guide grooves 2 and lower guide grooves 3 are both facing outward.

[0022] The upper guide groove 2 and the lower guide groove 3 have the same width, and the sum of the heights of the upper guide groove 2 and the lower guide groove 3 is consistent with the height of the support roller mounting cavity 1, and the height of the upper guide groove 2 is greater than the height of the lower guide groove 3.

[0023] Installation method as follows Figure 4 As shown, the entire profile is supported by the bottom support rollers 4, and the drive wheel 5 of the circulating rope is offset within the profile. A slider 6 is installed in the upper guide groove 2, and the slider 6 is linked to the circulating rope 8. The upper section of the circulating rope 8 is also located in the upper guide groove 2. The opening in the upper guide groove 2 is used to connect the slider 6 to the connector, and the slider 6 is connected to the next door panel through the connector. The lower section of the circulating rope 8 is located in the lower guide groove 3, and the end of the circulating rope 8 is fixed to the rope end fixing bracket 7. Because both the upper and lower circulating rope guide grooves open to the side, the bottom surface of the guide grooves supports the circulating rope, preventing it from being exposed, thus providing both protection and aesthetics.

[0024] Of course, the above description is only a preferred embodiment of this utility model and should not be considered as limiting the scope of the embodiments of this utility model. This utility model is not limited to the above examples, and all equivalent changes and improvements made by those skilled in the art within the scope of this utility model should be included in the patent coverage of this utility model.

Claims

1. A bottom beam profile for an automatic door, wherein the lower part of the cross-section of the bottom beam profile is a support roller mounting cavity (1), and the support roller mounting cavity (1) has a downward-facing opening, characterized in that, On the same side of the support roller mounting cavity (1), there are upper guide grooves (2) and lower guide grooves (3). Both upper guide grooves (2) and lower guide grooves (3) are provided with openings, and the openings of upper guide grooves (2) and lower guide grooves (3) face outwards.

2. The bottom beam profile for automatic doors according to claim 1, characterized in that, The sum of the heights of the upper guide groove (2) and the lower guide groove (3) is consistent with the height of the support roller mounting cavity (1).

3. The bottom beam profile for automatic doors according to claim 1, characterized in that, The height of the upper guide groove (2) is greater than the height of the lower guide groove (3).

4. The bottom beam profile for an automatic door according to any one of claims 1 to 3, characterized in that, The upper guide groove (2) and the lower guide groove (3) have the same width.

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