Auxiliary door leaf and one-way passing door with same

Abstract

According to the auxiliary door leaf and the one-way passing door with the auxiliary door leaf, the auxiliary door leaf comprises two rails which are arranged in parallel, a first door leaf and a second door leaf are assembled in the two rails respectively, and the first door leaf and the second door leaf are connected through a belt transmission wheel set. The belt transmission wheel set comprises two belt wheels and a belt arranged on the two belt wheels in a sleeving mode, the two belt wheels are installed on the left side and the right side of the top of the second door leaf respectively, the belt located on the front side of the second door leaf is fixedly connected with a first belt clamp, and the belt located on the rear side of the second door leaf is fixedly connected with a second belt clamp. The first belt clamp is fixedly connected with the first door leaf, and the second belt clamp is fixedly connected with the rail. Compared with the mode that a plurality of door leaves are directly driven by a connecting rod, the technical scheme of the utility model has the advantages that the system complexity is obviously reduced, the maintenance process is simplified, and rapid diagnosis and maintenance are facilitated, so that the long-term operation cost is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of one-way access doors, and particularly relates to a secondary door leaf and a one-way access door with the secondary door leaf. Background Art

[0002] With the increasing demand for public safety and the improvement of the requirement for the efficiency of crowd management in public places, as an effective device for controlling the flow direction of people and ensuring safe passage, one-way access doors have been widely used in high-traffic areas such as airports, subway stations, stadiums, and commercial centers. The core of the design of such door systems lies in realizing one-way controllable personnel flow, which not only ensures the smooth flow of people but also effectively prevents reverse intrusion, and is of great significance for maintaining public order and improving the safety of the place.

[0003] The secondary door leaves of traditional one-way access doors are mainly divided into two categories: one is the design mainly based on a rolling curtain type, and the other is the structure based on a multi-door link linkage mechanism. The one-way access door with a rolling curtain type design drives a rollable door curtain to move through a single set of linkages to realize the opening and closing of the secondary door leaf. The advantage of this design is that the structure is relatively simple and the installation is flexible. However, its disadvantages are also very obvious: the noise generated during operation is relatively large, which not only affects the user experience but also may cause interference in some places that require a quiet environment (such as hospitals and libraries). In addition, in order to accommodate the rolled-up door curtain, sufficient space must be reserved on one side of the door, which undoubtedly increases the overall floor area of the one-way access door, and is a great challenge for places with limited space.

[0004] Therefore, the secondary door leaves of the current mainstream one-way access doors mostly adopt a multi-door link linkage mechanism. The multi-door link linkage type design realizes the linear synchronous movement of the door leaves through a complex linkage mechanism to respond to the rotation action of the main door. This design can more precisely control the opening and closing of each door leaf, improving the sealing performance and safety of the access door. However, since this system involves the precise cooperation of multiple linkages and door leaves, its mechanical complexity is relatively high. Once a fault occurs in a certain link, such as the link getting stuck or worn, the normal operation of the entire door system will be affected. Maintaining and repairing these faults not only takes time and effort but also may require professional technicians, greatly increasing the later maintenance cost and difficulty. Summary of the Utility Model

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions.

[0006] A secondary door leaf, comprising two parallel tracks, wherein a first door leaf and a second door leaf are respectively assembled in the two tracks, and the first door leaf and the second door leaf are connected by a belt pulley set. The belt pulley set includes two belt pulleys and a belt sleeved on the two belt pulleys. The two belt pulleys are respectively installed on the left and right sides of the top of the second door leaf. A first belt clip is fixedly connected to the belt on the front side of the second door leaf, and a second belt clip is fixedly connected to the belt on the rear side of the second door leaf. The first belt clip is fixedly connected to the first door leaf, and the second belt clip is fixedly connected to the plane where the track is located.

[0007] Preferably, both the first belt clip and the second belt clip include a fixing frame and a fixing plate. During installation, the fixing frame and the fixing plate clamp the belt in the middle, and the fixing frame and the fixing plate are fixedly assembled through fasteners.

[0008] Preferably, the track is located above the first door leaf and the second door leaf, and a hanging wheel is assembled on the tops of the first door leaf and the second door leaf. The hanging wheel is slidably assembled with the track.

[0009] Preferably, chutes are provided at the bottoms of the first door leaf and the second door leaf. An installation plate is assembled on the front side of the chute of the second door leaf. Swing-stop wheels are assembled on the ground and on the installation plate. The swing-stop wheel on the ground is slidably assembled with the chute of the second door leaf, and the swing-stop wheel on the installation plate is slidably assembled with the chute of the first door leaf.

[0010] The present utility model also proposes a one-way access door with the above secondary door leaf, including a revolving door group. The revolving door group includes a central axis as the rotation center. The central axis is connected to a connecting rod group through a gear transmission group. An assembly seat connected to the connecting rod group is assembled on the first door leaf. The rotation of the revolving door group drives the first door leaf to linearly slide through the central axis, the gear transmission group and the connecting rod group.

[0011] Compared with the method of directly driving multiple door leaves by a connecting rod, the technical solution of the present utility model significantly reduces the system complexity, simplifies the maintenance process, facilitates quick diagnosis and repair, and thus greatly reduces the long-term operation cost. Description of the Drawings

[0012] Figure 1 It is a top view of the structure of the secondary door leaf.

[0013] Figure 2 It is a side view of the structure of the secondary door leaf.

[0014] Figure 3 It is a top view of the main structure of the one-way access door (when the secondary door leaf is open).

[0015] Figure 4 It is a top view of the main structure of the one-way access door (when the secondary door leaf is closed).

[0016] The following is the description of the markings in the accompanying drawings of the specification:

[0017] 10. First door leaf; 11. Second door leaf; 12. First clip; 13. Second clip; 14. Fixing bracket; 15. Fixing plate; 16. Fastener; 17. Slide groove; 18. Mounting plate; 19. Anti-sway wheel;

[0018] 20. Belt pulley; 21. Belt;

[0019] 30. Track; 31. Hanging wheel;

[0020] 40. Revolving door group; 41. Central axis; 42. Gear transmission group; 43. Linkage group; 44. Assembly seat. Detailed implementation mode

[0021] The present utility model will be further described in detail below in conjunction with the accompanying drawings and the detailed implementation mode.

[0022] In the following implementation modes, the same or similar reference numerals throughout denote the same or similar components or components with the same or similar functions. The implementation modes described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0023] In the description of the present utility model, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise, etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and therefore should not be construed as a limitation of the present utility model. In addition, the terms: first, second, etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present utility model, unless otherwise clearly specified and limited, the terms: installation, connection, connection, etc. should be understood in a broad sense, and those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific circumstances.

[0024] Refer to Figure 1 and Figure 2, A secondary door leaf, comprising two parallel tracks 30. A first door leaf 10 and a second door leaf 11 are respectively assembled in the two tracks 30. The first door leaf 10 and the second door leaf 11 are connected by a belt drive pulley set. The belt drive pulley set includes two belt pulleys 20 and a belt 21 sleeved on the two belt pulleys 20. The two belt pulleys 20 are respectively installed on the left and right sides of the top of the second door leaf 11. A first belt clip 12 is fixedly connected to the belt 21 on the front side of the second door leaf 11, and a second belt clip 13 is fixedly connected to the belt 21 on the rear side of the second door leaf 11. The first belt clip 12 is fixedly connected to the first door leaf 10, and the second belt clip 13 is fixedly connected to the plane where the track 30 is located.

[0025] When the user pushes the first door leaf 10, it will drive the belt 21 to rotate. Since the other side of the belt 21 is fixed to the track 30 through the second belt clip 13, based on the principle of a movable pulley, the second door leaf 11 is driven to move. Among them, the elastic property of the belt 21 can absorb the vibration during the movement, reduce the generation of noise, and improve the use experience. The flexibility of the belt 21 also allows the tension to be automatically adjusted within a certain range to adapt to the slight change in length caused by temperature changes, ensuring the stable and reliable operation of the door leaf.

[0026] Specifically, both the first belt clip 12 and the second belt clip 13 include a fixing frame 14 and a fixing plate 15. During installation, the fixing frame 14 and the fixing plate 15 sandwich the belt 21 in the middle, and the fixing frame 14 and the fixing plate 15 are fixedly assembled through fasteners 16.

[0027] Furthermore, the track 30 is located above the first door leaf 10 and the second door leaf 11. Hanging wheels 31 are assembled at the tops of the first door leaf 10 and the second door leaf 11, and the hanging wheels 31 are slidably assembled with the track 30. The design of the hanging wheels 31 at the tops of the first door leaf 10 and the second door leaf 11 not only shares the weight of the door leaf, reduces the burden on the sliding parts, but also improves the smoothness of the door leaf sliding along the track 30, effectively reducing the friction loss and extending the service life. Sliding grooves 17 are provided at the bottoms of the first door leaf 10 and the second door leaf 11. An installation plate 18 is assembled on the front side of the sliding groove 17 of the second door leaf 11. Swing-stop wheels 19 are assembled on both the ground and the installation plate 18. The swing-stop wheel 19 on the ground is slidably assembled with the sliding groove 17 of the second door leaf 11, and the swing-stop wheel 19 on the installation plate 18 is slidably assembled with the sliding groove 17 of the first door leaf 10. The combination of the bottom sliding groove 17 and the swing-stop wheel 19 provides a stable lateral guiding system for the door leaf, enhancing the straightness and stability of the door leaf during the opening and closing process. Even in the face of external wind pressure or improper operation and other external force interferences, it can effectively prevent the door leaf from shifting or colliding, improving the overall safety and durability.

[0028] Reference Figure 3 and Figure 4, based on the design of the above single door leaf, the applicant proposes a one-way access door, including the above auxiliary door leaf and the revolving door group 40. The revolving door group 40 includes a central axis 41 as the rotation center. The central axis 41 is connected with a connecting rod group 43 through a gear transmission group 42. An assembly seat 44 connected with the connecting rod group 43 is assembled on the first door leaf 10. The rotation of the revolving door group 40 drives the first door leaf 10 to linearly slide through the central axis 41, the gear transmission group 42 and the connecting rod group 43.

[0029] The protection scope of the present utility model includes but is not limited to the above embodiments. The protection scope of the present utility model is subject to the claims. Any replacement, deformation, and improvement that are easily conceivable by those skilled in the art for this technology fall within the protection scope of the present utility model.

Claims

1. A secondary door leaf, characterized in that, It includes two parallel tracks (30). A first door leaf (10) and a second door leaf (11) are respectively assembled in the two tracks (30). The first door leaf (10) and the second door leaf (11) are connected by a belt drive pulley set. The belt drive pulley set includes two belt pulleys (20) and a belt (21) sleeved on the two belt pulleys (20). The two belt pulleys (20) are respectively installed on the left and right sides of the top of the second door leaf (11). A first belt clip (12) is fixedly connected to the belt (21) on the front side of the second door leaf (11), and a second belt clip (13) is fixedly connected to the belt (21) on the rear side of the second door leaf (11). The first belt clip (12) is fixedly connected to the first door leaf (10), and the second belt clip (13) is fixedly connected to the plane where the track (30) is located.

2. The auxiliary door leaf according to claim 1, wherein, Both the first belt clip (12) and the second belt clip (13) include a fixing frame (14) and a fixing plate (15). During installation, the fixing frame (14) and the fixing plate (15) clamp the belt (21) in the middle, and the fixing frame (14) and the fixing plate (15) are fixedly assembled through fasteners (16).

3. A secondary door leaf according to claim 1, characterized in that, The track (30) is located above the first door leaf (10) and the second door leaf (11). Hanging wheels (31) are assembled on the tops of the first door leaf (10) and the second door leaf (11). The hanging wheels (31) are slidably assembled with the track (30).

4. A secondary door leaf according to claim 1, characterized in that, Chutes (17) are provided at the bottoms of the first door leaf (10) and the second door leaf (11). An installation plate (18) is assembled on the front side of the chute (17) of the second door leaf (11). Swing stop wheels (19) are assembled on the ground and on the installation plate (18). The swing stop wheel (19) on the ground is slidably assembled with the chute (17) of the second door leaf (11), and the swing stop wheel (19) on the installation plate (18) is slidably assembled with the chute (17) of the first door leaf (10).

5. A one-way access door with a secondary door leaf as described in any one of claims 1-4, characterized in that, It includes a revolving door group (40). The revolving door group (40) includes a central axis (41) as the rotation center. The central axis (41) is connected to a connecting rod group (43) through a gear transmission group (42). An assembly seat (44) connected to the connecting rod group (43) is assembled on the first door leaf (10). The rotation of the revolving door group (40) drives the first door leaf (10) to linearly slide through the central axis (41), the gear transmission group (42) and the connecting rod group (43).

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