Roller shutter door driving disc structure

Abstract

According to the roller shutter door driving disc structure, the gear ring structure is arranged on the support structure, the gear ring structure is formed by splicing the major-arc upper arc portion A and the minor-arc lower arc portion A, during installation, the upper arc portion A is installed on a door shaft and cannot fall off, then the lower arc portion A is installed, all the components do not need to be shaken apart, and therefore installation is convenient. The installation convenience and efficiency are greatly improved, and the technical problems that in the prior art, a driving disc (including a gear ring) is usually formed by splicing two semicircles, the structure is very inconvenient to install, an operator needs to hold the semicircular structure with two hands and then screw a fastener, and therefore the whole driving disc is installed on a door shaft are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling shutter door control, in particular to a rolling shutter door driving disc structure. Background Art

[0002] Rolling shutter doors are made of multi-jointed door panels connected in series. In a fixed slide, the door rotates up and down with the scroll above the door as the center. Rolling shutter doors are suitable for public places or residences such as commercial storefronts, garages, shopping malls, hospitals, factories and mines. They are usually driven by a central motor for electric lifting.

[0003] Chinese patent CN220325439U discloses a mid-mounted motor with electronic limit, including a bracket, a driving motor and a photoelectric stroke positioning device fixed on the bracket, and a ring gear. The bracket is provided with a transmission shaft that is rotatably connected to the bracket, and the transmission shaft is provided with motor transmission teeth, ring gear transmission teeth and limit transmission teeth. The motor transmission teeth match the driving teeth on the output shaft of the driving motor, the inner side of the ring gear is provided with internal teeth, the internal teeth match the ring gear transmission teeth, and the limit transmission teeth match the positioner gear on the photoelectric stroke positioning device.

[0004] However, in the existing technical solutions, the drive disk (including the gear ring) is usually composed of two semicircles spliced ​​together. This structure is very inconvenient during installation. The operator is required to hold the semicircular structure with both hands and then tighten the fasteners to install the drive disk as a whole on the door shaft; and the rotational installation accuracy of the gear ring is low. Utility Model Content

[0005] The purpose of the utility model is to provide a rolling door drive disc structure in view of the deficiencies in the prior art, wherein a gear ring structure is arranged on a bracket structure, wherein the gear ring structure is formed by splicing an upper arc portion A of a superior arc and a lower arc portion A of an inferior arc. During installation, the upper arc portion A is first mounted on the door shaft without falling off, and then the lower arc portion A is mounted, and the components do not need to be shaken apart, thereby greatly improving the convenience and efficiency of installation. The utility model solves the technical problem that a drive disc (including a gear ring) in the prior art is usually formed by splicing two semicircles, and this structure is very inconvenient during installation, requiring the operator to hold the semicircular structure with both hands and then tighten the fasteners, thereby installing the drive disc as a whole on the door shaft.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A rolling door drive disc structure comprises: a bracket structure, which is coaxially mounted on a door shaft structure of the rolling door; and a ring gear structure, which is coaxially rotatably mounted on the bracket structure, the ring gear structure being formed by splicing an upper arc portion A and a lower arc portion A, the upper arc portion A being set as a major arc, and the lower arc portion A being set as a minor arc.

[0008] Preferably, the central angle α of the upper arc portion A is 270°, and the central angle β of the lower arc portion A is 90°.

[0009] Preferably, the upper arc portion A and the lower arc portion A are connected by a fastener A.

[0010] Preferably, both ends of the upper arc portion A and the lower arc portion A are provided with threaded holes along the tangential direction, and the fastener A is configured as a screw and threadedly installed in the threaded hole.

[0011] Preferably, the support structure comprises an upper arc portion B, and the upper arc portion B is arranged as a major arc.

[0012] Preferably, the bracket structure further includes: a lower arc portion B, a U-shaped installation opening is formed on the upper arc portion B from the outer circumference to the center, and the lower arc portion B cooperates with the installation opening to form an installation space B of the door axis structure.

[0013] Preferably, the upper arc portion B is connected to the lower arc portion B by sliding engagement along the axial direction.

[0014] Preferably, a sliding slot is provided on the installation opening, and both ends of the lower arc portion B extend out to match hanging ears that are mounted in the sliding slot.

[0015] Preferably, the upper arc portion B and the door axis structure, as well as the lower arc portion B and the door axis structure are connected via fasteners C.

[0016] Preferably, the upper arc portion B comprises: two support plates coaxially spaced apart from each other, an installation space A for the gear ring structure being formed between the two support plates; and a connecting portion connectedly disposed between the two support plates.

[0017] Preferably, the connecting portion is coaxially integrally formed with one of the support plates, and is connected to the other support plate via a fastener B.

[0018] The beneficial effects of the utility model are:

[0019] (1) The utility model sets a gear ring structure on the bracket structure, wherein the gear ring structure is composed of an upper arc portion A of a superior arc and a lower arc portion A of an inferior arc. When installing, the upper arc portion A is first installed on the door shaft without falling off, and then the lower arc portion A is installed, thereby greatly improving the convenience and efficiency of installation;

[0020] (2) The utility model sets the support structure as a structure formed by splicing the upper arc portion B of the superior arc and the lower arc portion B of the semi-circular arc. During installation, the upper arc portion B is first installed on the door shaft without falling off, and then the lower arc portion B is slid and installed into the sliding groove of the upper arc portion B. The components carried by the support structure do not need to be shaken apart, thereby greatly improving the convenience and efficiency of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the gear ring structure in the utility model;

[0023] Figure 3 It is a cross-sectional view of the gear ring structure in the utility model;

[0024] Figure 4 It is a side view of the overall structure of the utility model;

[0025] Figure 5 for Figure 4 Sectional view at point A;

[0026] Figure 6 It is a side view of the support structure in the utility model;

[0027] Figure 7 It is a side view of the upper arc portion B of the utility model;

[0028] Figure 8 It is a front view of the support structure in the utility model. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" 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 utility model and simplifying the description, rather than indicating or implying that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] Embodiment 1

[0032] like Figure 1 As shown, a rolling door drive disc structure comprises: a support structure 10, the support structure 10 is coaxially mounted on the door shaft structure of the rolling door; and a gear ring structure 20, the gear ring structure 20 is coaxially rotatably mounted on the support structure 10, as shown in FIG. Figure 2 As shown, the gear ring structure 20 is formed by splicing an upper arc portion A1 and a lower arc portion A2, wherein the upper arc portion A1 is set as a major arc, and the lower arc portion A2 is set as a minor arc.

[0033] As an explanation, the gear ring structure 20 is a full circular ring structure formed by splicing an upper arc portion A1 and a lower arc portion A2, wherein the central angle α of the upper arc portion A1 is greater than 180°, and the central angle α of the lower arc portion A2 is less than 180°.

[0034] In this embodiment, a gear ring structure 20 is arranged on the bracket structure 10, wherein the gear ring structure 20 is formed by splicing an upper arc portion A1 of a major arc and a lower arc portion A2 of an inferior arc. During installation, the upper arc portion A1 is first installed on the door shaft without falling off, and then the lower arc portion A2 is installed, thereby greatly improving the convenience and efficiency of installation.

[0035] As a preferred embodiment, Figure 3 As shown, the central angle α of the upper arc portion A1 is 270°, and the central angle β of the lower arc portion A2 is 90°.

[0036] Preferably, the upper arc portion A1 and the lower arc portion A2 are connected by a fastener A31.

[0037] Preferably, threaded holes 11 are formed at both ends of the upper arc portion A1 and the lower arc portion A2 along the tangential direction, and the fastener A31 is configured as a screw and is threadedly installed in the threaded hole 11 .

[0038] During installation, the upper arc portion A1 is first hung on the support structure 10, and then the lower arc portion A2 is connected to the upper arc portion A1 through the fastener A31.

[0039] Embodiment 2

[0040] The components of this embodiment that are the same as or corresponding to those in the above embodiment are marked with the same reference numerals as those in the above embodiment. For the sake of simplicity, only the differences from the above embodiment are described below. The differences between this embodiment and the above embodiment are:

[0041] As a preference, Figure 7 As shown, the support structure 10 includes an upper arc portion B5, and the upper arc portion B5 is set as a major arc.

[0042] As a preference, Figure 7-8 As shown, the support structure 10 also includes: a lower arc portion B6, and a U-shaped installation opening 50 is formed on the upper arc portion B5 from the outer circumference to the center, and the lower arc portion B6 cooperates with the installation opening 50 to form an installation space B60 of the door axis structure.

[0043] In this embodiment, the support structure 10 is set to a structure formed by splicing the upper arc portion B5 of the major arc and the lower arc portion B6 of the semi-circular arc. During installation, the upper arc portion B5 is first hung on the door shaft from the U-shaped installation opening 50 without falling, and then the lower arc portion B6 is slid and installed on the upper arc portion B5. Under this structure, the various components carried by the support structure 10 do not need to be shaken apart during installation, and the convenience and efficiency of installation are greatly improved.

[0044] As a preference, Figure 8 As shown, the upper arc portion B5 and the door axis structure, as well as the lower arc portion B6 and the door axis structure are connected via fasteners C33.

[0045] As a preference, Figure 6 As shown, the upper arc portion B5 includes: two coaxially spaced support plates 51 , between which a mounting space A501 for the gear ring structure 20 is formed; and a connecting portion 52 , which is connected between the two support plates 51 .

[0046] As a preference, Figure 8 As shown, the connecting portion 52 is coaxially integrally formed with one of the support plates 51 and is connected to the other support plate 51 via a fastener B32.

[0047] Embodiment 3

[0048] The components of this embodiment that are the same as or corresponding to those in the above embodiment are marked with the same reference numerals as those in the above embodiment. For the sake of simplicity, only the differences from the above embodiment are described below. The differences between this embodiment and the above embodiment are:

[0049] Preferably, the upper arc portion B5 and the lower arc portion B6 are axially slidably engaged with each other.

[0050] As a preference, Figure 7-8 As shown, a sliding slot 61 is formed on the installation opening 50 , and hooks 62 for matching and being mounted in the sliding slot 61 extend from both ends of the lower arc portion B6 .

[0051] During installation, first hang the upper arc portion B5 on the door shaft, then slide the lower arc portion B6 into the slot 61 of the upper arc portion B5 through the hanging ear 62, and then fasten the support structure 10 to the door shaft through the fastener C33.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rolling door drive disc structure, characterized in that: include: A support structure, wherein the support structure is coaxially mounted on a door shaft structure of the rolling door; as well as The gear ring structure is coaxially rotatably mounted on the support structure, and the gear ring structure is composed of an upper arc portion A and a lower arc portion A, wherein the upper arc portion A is set as a major arc, and the lower arc portion A is set as a minor arc.

2. A rolling door drive disc structure according to claim 1, characterized in that: The central angle α of the upper arc portion A is 270°, and the central angle β of the lower arc portion A is 90°.

3. The rolling door drive disc structure according to claim 1, characterized in that: The upper arc portion A and the lower arc portion A are connected via a fastener A.

4. A rolling door drive disc structure according to claim 3, characterized in that: Both ends of the upper arc portion A and the lower arc portion A are provided with threaded holes along the tangential direction, and the fastener A is configured as a screw and threadedly installed in the threaded hole.

5. A rolling door drive disc structure according to any one of claims 1 to 4, characterized in that: The support structure comprises an upper arc portion B, and the upper arc portion B is arranged as a major arc.

6. The rolling door drive disc structure according to claim 5, characterized in that: The support structure also includes: The lower arc portion B has a U-shaped installation opening formed on the upper arc portion B from the outer circumference to the center, and the lower arc portion B cooperates with the installation opening to form an installation space B of the door axis structure.

7. The rolling door drive disc structure according to claim 6, characterized in that: The upper arc portion B and the lower arc portion B are slidably engaged and connected along the axial direction.

8. The rolling door drive disc structure according to claim 7, characterized in that: The installation opening is provided with a sliding slot, and the two ends of the lower arc portion B extend out to form hanging ears for matching and being clamped in the sliding slot; The upper arc portion B and the door axis structure, as well as the lower arc portion B and the door axis structure are connected via fasteners C.

9. The rolling door drive disc structure according to claim 5, characterized in that: The upper arc portion B comprises: Two support plates are coaxially spaced apart, and an installation space A of the gear ring structure is formed between the two support plates; and A connecting portion is connected and arranged between the two support plates.

10. The rolling door driving disk structure according to claim 9, characterized in that: The connecting portion is coaxially integrally formed with one of the support plates, and is connected to the other support plate via a fastener B.

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