Door leaf moving mechanism for large shielding doors

Abstract

The utility model discloses a door leaf moving mechanism suitable for large shielding door, at least include: bottom support frame, it at least includes respectively used with the left and right sides end surface of door leaf fixed connection to realize for the support of a pair of support frame of door leaf, first translation subassembly, it includes a pair of link frame with a pair of support frame sliding fit, the first rack of extending along the front and back direction of door leaf is at least set on one link frame, at least with one link frame fixed connection's first drive motor and with a pair of first drive motor link's first gear, every first gear corresponds to engage a first rack, second translation subassembly, it includes the second rack of extending along the left and right direction of door leaf and being located below door leaf, at least fixed on one link frame's second drive motor and with second drive motor link and be suitable for with second rack engagement's second gear.

Description

Technical Field

[0001] This utility model relates to the field of shielding equipment technology, and in particular to a door leaf moving mechanism suitable for large shielding doors. Background Technology

[0002] Electromagnetic shielding doors are divided into hinged rotating type and sliding type. Hinged rotating shielding doors require a large space to rotate, which is inconvenient in some relatively limited spaces. Therefore, in certain specific space conditions, sliding shielding doors are more suitable for use, especially for large shielding doors, where only a sliding structure can be used to open and close the door.

[0003] For sliding shielded doors, CN216553660U discloses a sliding electromagnetic shielded door. In the opening and closing mechanism that realizes the relative opening and closing between the door leaf and the door frame, the movement of a push rod on the door leaf drives the synchronous movement of a movable slider. Based on this process, to achieve the rotational movement of the push rod, the door leaf is also equipped with a drive assembly suitable for simultaneously driving the push rods of a pair of opening and closing mechanisms. The drive assembly includes a pair of movable joints respectively sleeved on the pair of push rods, a pair of movable connecting rods corresponding to each of the pair of movable joints, and a rotating wheel connected to both of the pair of movable connecting rods. The pair of movable connecting rods are distributed in parallel; the rotating wheel is connected to a manual turntable.

[0004] Based on the aforementioned disclosed technology, for small-sized shielding doors with a certain width, the aforementioned drive assembly can be designed on the door leaf in conjunction with a manual turntable to rotate the push rod. However, for doors with a larger width, using the aforementioned drive assembly results in two issues: firstly, the required drive assembly is large, leading to high material costs; secondly, for large-sized doors, the required length of the movable link is long. Therefore, additional matching structures need to be designed to ensure the stable use of the movable link.

[0005] In summary, for large platform screen doors, a new structure needs to be designed for the door leaf moving mechanism to meet their usage requirements. Utility Model Content

[0006] The purpose of this invention is to provide a door leaf moving mechanism suitable for large shielded doors, so as to solve the technical problem of meeting the requirements of movable opening and closing of door leaves of large shielded doors.

[0007] The door leaf moving mechanism of this utility model, applicable to large shielding doors, is implemented as follows: A door leaf moving mechanism suitable for large screen doors, comprising at least: The bottom support frame includes at least a pair of support frames for fixing to the left and right end faces of the door leaf to support the door leaf. The first translation component includes a pair of connecting frames that slide with a pair of support frames, a first rack extending along the front-rear direction of the door leaf and disposed on at least one of the connecting frames, a first drive motor fixedly connected to at least one of the connecting frames, and a first gear connected to the pair of first drive motors; each first gear meshes with a first rack. The second translation assembly includes a second rack extending in the left-right direction of the door leaf and located below the door leaf, a second drive motor fixed on at least one connecting frame, and a second gear connected to the second drive motor and adapted to mesh with the second rack.

[0008] In an optional embodiment of this utility model, the first translation component further includes a first guide rail structure disposed one-to-one between the support frame and the connecting frame.

[0009] In an optional embodiment of this utility model, the first guide rail structure includes at least a first guide wheel that mates with the support frame, and a first guide groove provided on the connecting frame that is suitable for rolling cooperation with the first guide wheel.

[0010] In an optional embodiment of this utility model, the first guide rail structure further includes a first roller that cooperates with the support frame, and a rolling surface provided on the connecting frame that is suitable for rolling cooperation with the first roller.

[0011] In an optional embodiment of this utility model, the support frame includes a support frame connected at one end to the door leaf and extending along the front-rear direction of the door leaf, and an inclined support frame connected to the end of the support frame away from the door leaf; wherein The supporting frame and the inclined support frame are respectively fixed to the door leaf through a connecting lug.

[0012] In an optional embodiment of this invention, the second translation component further includes a second guide rail structure that simultaneously slides with the bottom of a pair of connecting frames; The second guide rail structure includes a pair of second guide rails located on both sides of the second rack and parallel to the second rack, and guide wheel structures respectively disposed between the connecting frame and the pair of second guide rails.

[0013] In an optional embodiment of this utility model, the guide wheel structure includes at least a second guide wheel that mates with the connecting frame, and a second guide groove provided on the second guide rail that is suitable for rolling cooperation with the second guide wheel.

[0014] In an optional embodiment of this utility model, the guide wheel structure further includes a second roller that cooperates with the connecting frame, and a rolling mating surface provided on the second guide rail that is suitable for rolling mating with the second roller.

[0015] In an optional embodiment of this invention, the dimension of each second guide rail in the left-right direction of the door leaf is at least three times the dimension of the door leaf in the left-right direction; and The connecting frame on the left or right side of the door leaf is also equipped with a cover plate suitable for covering the second guide track of the portion.

[0016] In an optional embodiment of this invention, at least one reinforcing beam is provided between a pair of connecting frames.

[0017] By adopting the above technical solution, this utility model has the following beneficial effects: The door leaf moving mechanism of this utility model, applicable to large shielded doors, enables the door leaf to move along the front-back and left-right directions through the cooperation of the first and second translation components, thereby realizing the opening and closing process relative to the door frame. This process does not require the design of a drive structure on the front and rear outer walls of the door leaf for driving the door leaf to open and close; instead, it can be directly driven by the first and second drive motors. The operation process is convenient and labor-saving, making it particularly suitable for large shielded doors. Furthermore, the first and second translation components are located below the door leaf, which reduces the difficulty of manual installation and daily maintenance compared to placing them above the door leaf. This structure not only meets the need for door leaf movement but also provides support for the bottom of the door leaf. Therefore, even without the need for components to assist in door leaf movement above the door leaf, the door leaf can still reliably and stably open and close. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the door leaf moving mechanism of this utility model, applicable to large shielding doors, in the shielding door. Figure 2 This is a first-view schematic diagram of the door leaf moving mechanism of this utility model applicable to large shielding doors; Figure 3 This is a second-view schematic diagram of the door leaf moving mechanism of this utility model applicable to large shielding doors; Figure 4 This is a third-view schematic diagram of the door leaf moving mechanism of this utility model applicable to large shielding doors.

[0019] In the diagram: door leaf 1, door frame 2, support frame 31, diagonal support frame 32, connecting ear 33, connecting frame 34, first rack 35, first drive motor 36, first gear 37, first guide wheel 41, first guide groove 42, first roller 43, rolling surface 44, transmission shaft 45, second rack 51, second drive motor 52, second gear 53, second guide rail 54, second guide wheel 55, second guide groove 56, second roller 57, rolling mating surface 58, cover plate 6, reinforcing beam 7. Detailed Implementation

[0020] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0021] Please see Figures 1 to 4 As shown, this embodiment provides a door leaf moving mechanism suitable for large shielding doors, including: a bottom support frame, a first translation component, and a second translation component used in conjunction.

[0022] Combining the door leaf 1 commonly used in conventional technology, which is generally rectangular in shape, in this embodiment, the front-back direction of the door leaf 1 refers to the thickness direction of the door leaf 1 when it is engaged with the door frame 2; the left-right direction of the door leaf 1 is the direction perpendicular to both the thickness and height of the door leaf 1. In this embodiment, the door leaf 1 of the large shielding door is operated by translation relative to the door frame 2. During this process, a shielding structure is provided between the door leaf 1 and the door frame 2, which engages along the thickness direction of the door leaf 1. This shielding structure can be a mature technology from the prior art, such as, but not limited to, the use of shielding inserts and spring contacts. This embodiment does not impose an absolute limitation on the shielding structure. To meet the implementation requirements of the shielding structure, the door leaf 1 needs to undergo two translational movements in different directions during opening or closing relative to the door frame 2: one along the thickness direction of the door leaf 1 and the other perpendicular to both the thickness and height of the door leaf 1. Therefore, to meet the translational requirements in these two different directions, the door leaf 1 moving mechanism is designed as follows: First, there is the bottom support frame, which includes at least a pair of support frames for fixing to the left and right end faces of the door leaf 1 to support the door leaf 1. To improve the reliability and stability of the support frame's support for the door leaf 1, each support frame includes a support skeleton 31 connected to the door leaf 1 at one end and extending along the front-rear direction of the door leaf 1, and an oblique support frame 32 connected to the end of the support skeleton 31 away from the door leaf 1; wherein the support skeleton 31 and the oblique support frame 32 are respectively fixed to the door leaf 1 via a connecting lug 33. Based on this structure, it can be understood that the left and right end faces of the door leaf 1 form a triangular mating structure with the support skeleton 31 and the oblique support frame 32, thus improving the reliability of the support for the door leaf 1.

[0023] Secondly, there is a first translational assembly, which includes a pair of connecting frames 34 that slide against a pair of support frames, a first rack 35 extending along the front-rear direction of the door leaf 1 and mounted on at least one connecting frame 34, a first drive motor 36 fixedly connected to at least one connecting frame 34, and a first gear 37 connected to the pair of first drive motors 36; each first gear 37 meshes with a corresponding first rack 35. The connecting frame 34 is parallel to the support frame 31, and the two form a sliding fit. In terms of length, the connecting frame 34 is longer than the support frame 31, allowing the connecting frame 34 to slide on the support frame 31. Optionally, at least one reinforcing beam 7 is also provided between the pair of connecting frames 34.

[0024] The first drive motor 36 is vertically connected to the support frame 31 via a connecting bracket. Alternatively, each connecting bracket 34 can be connected to a first drive motor 36, and each connecting bracket 34 can be equipped with a first rack 35. To simplify the structure, each connecting bracket 34 can be equipped with a first rack 35, but one connecting bracket 34 can be connected to a first drive motor 36 while the other is not. In this case, the first drive motor 36 is connected to two first gears 37 via a transmission shaft 45. These two first gears 37 mesh with a first rack 35, thus achieving the effect of one drive motor simultaneously working with two connecting brackets 34.

[0025] Based on the above structure, to improve the stability and reliability of the first translation component during use, the first translation component further includes a first guide rail structure provided one-to-one between the support frame 31 of the support bracket and the connecting frame 34. Referring to the accompanying drawings, in one optional embodiment, the first guide rail structure includes at least a first guide wheel 41 that mates with the support bracket, and a first guide groove 42 on the connecting frame 34 suitable for rolling engagement with the first guide wheel 41. The first guide rail structure also includes a first roller 43 that mates with the support bracket, and a rolling surface 44 on the connecting frame 34 suitable for rolling engagement with the first roller 43. Specifically, the engagement of the first guide wheel 41 and the first guide groove 42 is located on the left or right end face of the connecting frame 34 along the left-right direction of the door leaf 1, while the engagement of the first roller 43 and the rolling surface 44 is located on the top surface of the connecting frame 34 along the height direction of the door leaf 1. Therefore, by forming a guiding engagement between the support frame 31 and the connecting frame 34 on two different side end faces of the connecting frame 34, the reliability of the first translation component's operation is improved.

[0026] Furthermore, the second translation component includes a second rack 51 extending in the left-right direction of the door leaf 1 and located below the door leaf 1, a second drive motor 52 fixed on at least one connecting frame 34, and a second gear 53 connected to the second drive motor 52 and adapted to mesh with the second rack 51. Here, the second drive motor 52 may optionally be connected to the bottom end of the connecting frame 34 via a transition frame.

[0027] Based on the above structure, the second translation component further includes a second guide rail structure that slides and engages with the bottom of a pair of connecting frames 34 simultaneously. Referring to the accompanying drawings, in one optional case, the second guide rail structure includes a pair of second guide rails 54 located on both sides of the second rack 51 and parallel to the second rack 51, and guide wheel structures respectively disposed between the connecting frame 34 and the pair of second guide rails 54. The guide wheel structure includes at least a second guide wheel 55 mating with the connecting frame 34, and a second guide groove 56 on the second guide rail 54 suitable for rolling engagement with the second guide wheel 55. The guide wheel structure also includes a second roller 57 mating with the connecting frame 34, and a rolling engagement surface 58 on the second guide rail 54 suitable for rolling engagement with the second roller 57. The implementation principle of this guide wheel structure can be referenced to the first translation component, whereby the second guide wheel 55 and the second roller 57 act on different side surfaces of the second guide rail 54, thereby achieving guiding engagement on different dimensional surfaces.

[0028] Next, it should be noted that for the large shielding door of this embodiment, the door leaf 1 needs to be fully opened by translation relative to the door frame 2. When the door leaf 1 is open, and people or other objects need to enter or exit through the door frame 2, to avoid damage to the second rack 51 and the second guide rail 54, the dimension of each second guide rail 54 along the left-right direction of the door leaf 1 is at least three times the dimension of the door leaf 1 in that direction. For example, if the dimension of the second guide rail 54 along the left-right direction of the door leaf 1 is roughly three times the dimension of the door leaf 1, then the second guide rail 54 is divided into three equal parts. The middle area of ​​the second guide rail 54 corresponds to the door frame 2. Thus, the door leaf 1 can move along the second guide rail 54 to the left or right of the door frame 2 to achieve the opening effect. Furthermore, when the door leaf 1 moves along the second guide rail 54 to the left of the door frame 2 to open, a cover plate 6 suitable for covering part of the second guide rail 54 is also attached to the connecting frame 34 on the right side of the door leaf 1. Furthermore, a guide wheel structure, such as the connecting frame 34 and the second guide rail 54, can also be designed between the cover plate 6 and the second guide rail 54, allowing the cover plate 6 to slide along the second guide rail 54. Based on this, when the door leaf 1 is closed relative to the door frame 2, the cover plate 6 is located in the right area of ​​the door leaf 1. When the door leaf 1 moves to the left side of the door frame 2 to open the door, the cover plate 6 moves to the left side along with the door leaf 1. When the door leaf 1 is fully open relative to the door frame 2, the cover plate 6 is directly facing the front area of ​​the door frame 2, covering the second guide rail 54 and the second rack 51 directly opposite the door frame 2. This allows people or other objects to step directly onto the cover plate 6.

[0029] In summary, for the door leaf moving mechanism of the large shielding door in this embodiment, the first and second translation components are located below the door leaf 1. Compared with the case where they are located above the door leaf 1, this reduces the difficulty of manual installation and daily maintenance. Furthermore, this structure can not only meet the need for moving the door leaf 1, but also support the bottom of the door leaf 1. Based on this, even if there is no need to set up components to assist the movement of the door leaf 1 above the door leaf 1, it can still ensure that the door leaf 1 can reliably and stably perform the opening and closing operation.

[0030] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0031] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

Claims

1. A door leaf moving mechanism suitable for large shielded doors, characterized in that, include: The bottom support frame includes at least a pair of support frames for fixing to the left and right end faces of the door leaf to support the door leaf. The first translation component includes a pair of connecting frames that slide with a pair of support frames, a first rack extending along the front-rear direction of the door leaf and disposed on at least one of the connecting frames, a first drive motor fixedly connected to at least one of the connecting frames, and a first gear connected to the pair of first drive motors; each first gear meshes with a first rack. The second translation assembly includes a second rack extending in the left-right direction of the door leaf and located below the door leaf, a second drive motor fixed on at least one connecting frame, and a second gear connected to the second drive motor and adapted to mesh with the second rack.

2. The door leaf moving mechanism for large shielded doors according to claim 1, characterized in that, The first translation component also includes a first guide rail structure disposed one-to-one between the support frame and the connecting frame.

3. The door leaf moving mechanism for large shielded doors according to claim 2, characterized in that, The first guide rail structure includes at least a first guide wheel that mates with the support frame, and a first guide groove provided on the connecting frame that is suitable for rolling engagement with the first guide wheel.

4. The door leaf moving mechanism for large shielded doors according to claim 3, characterized in that, The first guide rail structure also includes a first roller that cooperates with the support frame, and a rolling surface provided on the connecting frame that is suitable for rolling cooperation with the first roller.

5. The door leaf moving mechanism for large shielded doors according to any one of claims 1 to 4, characterized in that, The support frame includes a support frame that is connected to the door leaf at one end and extends along the front-rear direction of the door leaf, and an inclined support frame that is connected to the end of the support frame away from the door leaf. in The supporting frame and the inclined support frame are respectively fixed to the door leaf through a connecting lug.

6. The door leaf moving mechanism for large shielded doors according to claim 1, characterized in that, The second translation component also includes a second guide rail structure that simultaneously slides with the bottom of a pair of connecting frames; The second guide rail structure includes a pair of second guide rails located on both sides of the second rack and parallel to the second rack, and guide wheel structures respectively disposed between the connecting frame and the pair of second guide rails.

7. The door leaf moving mechanism for large shielded doors according to claim 6, characterized in that, The guide wheel structure includes at least a second guide wheel that mates with the connecting frame, and a second guide groove provided on the second guide rail that is suitable for rolling cooperation with the second guide wheel.

8. The door leaf moving mechanism for large shielded doors according to claim 7, characterized in that, The guide wheel structure also includes a second roller that cooperates with the connecting frame, and a rolling mating surface on the second guide rail that is suitable for rolling cooperation with the second roller.

9. The door leaf moving mechanism for large shielded doors according to any one of claims 6 to 8, characterized in that, The dimension of each second guide rail in the left-right direction of the door leaf is at least three times the dimension of the door leaf in the left-right direction; and The connecting frame on the left or right side of the door leaf is also equipped with a cover plate suitable for covering the second guide rail on part of it.

10. The door leaf moving mechanism for large shielded doors according to claim 1, characterized in that, At least one reinforcing beam is also provided between the pair of connecting frames.

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