A protective door structure

Abstract

This utility model provides a protective structure for a protective door, relating to the field of protective door technology. It includes a door frame and two door panels hinged within the frame. Two symmetrically distributed embedded tracks, aligned with the midpoint of the door panels, are fixedly installed on one side of the door frame. An electric push rod is fixedly installed within each embedded track near the door frame. A slider, slidably connected to the inner wall of the embedded track, is fixedly installed at the telescopic end of the electric push rod. A horizontally swinging diagonal arm is hinged to the slider on the outer wall of the embedded track. By sliding the slider within the corresponding embedded track and by using the hinge between the diagonal arm, the slider, and the door panel surface, the door panels can be swung, thus opening and closing the door. This solution eliminates the gear transmission system and drive wheel, utilizing only the sliding of the slider and the rotation of the diagonal arm to open and close the door. This facilitates maintenance and is less affected by dust, debris, lubrication, and other factors.

Description

Technical Field

[0001] This utility model relates to the field of protective door technology, and in particular to a protective door structure. Background Technology

[0002] A protective door is a door that can withstand various shock waves or impacts from heavy objects. In order to ensure the normal use of the protective door, it needs to be protected.

[0003] Therefore, a protective door structure in the prior art, disclosed in CN222296073U, includes a door opening, with protective doors installed on the lower left and right sides of the door opening; a side door is provided on the lower right side of the protective doors. The structure is characterized by an auxiliary drive frame structure installed at the lower part between the protective doors; a top protective frame structure is provided on the upper inner side of the door opening. During normal operation, the arc-shaped reinforcing frame, in conjunction with the reinforcing seat, increases the load-bearing capacity of the top of the door opening. Simultaneously, a drive motor drives a driven gear through a drive gear to rotate the shaft, and the drive wheel rotates on the ground, thereby enabling the drive wheel to open and close the protective door.

[0004] However, the reliability of the gear transmission system and drive wheel may be affected by a variety of factors, such as dust, debris, and insufficient lubrication. If these components malfunction, the protective door may not be able to open or close properly, affecting its use. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the prior art and to propose a protective door structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a protective door structure, comprising a door frame and two door panels hinged within the door frame, wherein two symmetrically distributed embedded tracks are fixedly installed on one side of the door frame and are level with the midpoint of the door panels, an electric push rod is fixedly installed on the side of the embedded track near the door frame, a slider is fixedly installed at the telescopic end of the electric push rod and is slidably connected to the inner wall of the embedded track, and a horizontally swinging diagonal arm is hinged to the side of the outer wall of the embedded track, and the other free end of the diagonal arm is hinged to the midpoint of the inner side of the adjacent door panel.

[0007] Preferably, the embedded track is fixedly connected to the wall surface and the slots on the surfaces of the two embedded tracks are arranged opposite each other.

[0008] Preferably, both ends of the diagonal arm extend upwards and pass through the slider and the door panel respectively, and an electric telescopic rod is fixedly installed at the extended end of the diagonal arm.

[0009] Preferably, both the slider and the door panel are fixedly mounted with a hollowed-out disc sleeved on the electric telescopic rod. The edge of the hollowed-out disc is hollowed out, and positioning holes are opened on the upper surface of the inclined pull arm near both ends.

[0010] Preferably, any of the positioning holes is coaxially arranged with one of the perforations on the surface of the perforated disc at an adjacent position, and a post is inserted into the positioning hole, penetrating one of the perforations on the surface of the perforated disc and adjacent to the telescopic end of the electric telescopic rod at an adjacent position.

[0011] Preferably, an arc-shaped support beam is installed on the top edge of the door frame, and an integrally formed reinforcing rib is provided between the door frame and the support beam, with one side of the reinforcing rib abutting against one side of the door frame and the support beam.

[0012] Preferably, a number of insert blocks for connecting reinforcing ribs are fixedly installed between the top edge of the door frame and the inner arc surface of the support beam. Two threaded rods distributed horizontally are symmetrically fixedly installed on the inner arc surface of the support beam, and a stop bar for abutting the other side of the reinforcing rib is sleeved on the two threaded rods.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, the slider slides in the corresponding embedded track, and the door panel can be driven to swing by the hinge of the inclined pull arm, thereby realizing the opening and closing of the door panel. This solution abandons the gear transmission system and drive wheel, and only uses the sliding of the slider and the rotation of the inclined pull arm to realize the opening and closing of the door panel. It is convenient for maintenance and is less affected by factors such as dust, debris, and lubrication.

[0015] 2. In this utility model, after the set insert block is fixed in the position of the door frame, the reinforcing rib can be lifted up by hoisting. The reinforcing rib is stably installed between the support beam and the door frame by the insertion of the insert block, which ensures that the support beam can withstand greater pressure. The fixed stop bar can prevent the reinforcing rib from falling off. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural diagram of a protective door structure;

[0017] Figure 2 This utility model proposes a protective door structure. Figure 1 A schematic diagram of the rear view structure;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0020] Illustrations: 1. Door frame; 2. Embedded track; 3. Electric push rod; 4. Door panel; 5. Support beam; 6. Reinforcing rib; 7. Stop bar; 8. Lead screw; 9. Positioning hole; 10. Insert block; 11. Diagonal pull arm; 12. Slider; 13. Hollowed-out disc; 14. Electric telescopic rod; 15. Insert post. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] like Figures 1-4 As shown, a protective door structure includes a door frame 1 and two door panels 4 hinged within the door frame 1. Two symmetrically distributed embedded tracks 2, aligned with the midpoint of the door panels 4, are fixedly installed on one side of the door frame 1. The embedded tracks 2 are fixedly connected to the wall surface, and the grooves on the surfaces of the two embedded tracks 2 are opposite each other. During actual installation, the embedded tracks 2 can be embedded into the wall of the environment where the door frame 1 is located, facilitating reinforcement of the door frame 1. An electric push rod 3 is fixedly installed on the side of the embedded track 2 closest to the door frame 1. A slider 12, which is slidably connected to the inner wall of the embedded track 2, is fixedly installed at the telescopic end of the electric push rod 3. A horizontally swinging diagonal arm 11 is hinged to one side of the outer wall of the embedded track 2. The other free end of the diagonal arm 11 is hinged to the midpoint of the inner side of the adjacent door panel 4. In use, the electric push rod 3 is extended and retracted to make the corresponding slider 12 slide in the corresponding embedded track 2. By using the hinge between the diagonal arm 11, the slider 12 and the surface of the door panel 4, the door panel 4 can be driven to swing, thereby opening and closing the door panel 4. This solution abandons the gear transmission system and drive wheel, and only uses the sliding of the slider 12 and the rotation of the diagonal arm 11 to open and close the door panel 4. This is convenient for maintenance and less affected by factors such as dust, debris and lubrication.

[0024] Both ends of the diagonal pull arm 11 extend upwards and pass through the slider 12 and the door panel 4 respectively. An electric telescopic rod 14 is fixedly installed at the extended end of the diagonal pull arm 11. When the diagonal pull arm 11 swings, it drives the electric telescopic rod 14 to rotate synchronously. A hollowed-out disc 13, fitted onto the electric telescopic rod 14, is fixedly installed on the surfaces of both the slider 12 and the door panel 4. The edge of the hollowed-out disc 13 is hollowed out, and positioning holes 9 are provided near both ends on the upper surface of the diagonal pull arm 11. Any positioning hole 9 is coaxially aligned with one of the hollowed-out sections of the adjacent hollowed-out disc 13, and a post 15, penetrating one of the hollowed-out sections of the hollowed-out disc 13 and adjacent to the telescopic end of the electric telescopic rod 14, is inserted into the positioning hole 9. Figure 3 and Figure 4 As shown, when the electric telescopic rod 14 retracts to allow the insert 15 to pass through the hollowed-out area on the surface of the hollowed-out plate 13 and be inserted into the positioning hole 9 on the inclined pull arm 11, the relative angles of the inclined pull arm 11, the door panel 4, and the embedded track 2 are fixed, that is, the relative positions of the three are fixed. Therefore, when the door panel 4 is pushed open or closed by an external force, the door panel 4 cannot move because of the insert 15, and the load at the rotation point of the inclined pull arm 11 can be reduced when the door panel 4 is subjected to force.

[0025] When the insert 15 extends and rises with the electric telescopic rod 14 and disengages from the positioning hole 9 on the surface of the inclined pull arm 11, the inclined pull arm 11 can then swing the door panel 4 as the slider 12 slides.

[0026] An arc-shaped support beam 5 is installed on the top edge of the door frame 1, and an integrally formed reinforcing rib 6 is provided between the door frame 1 and the support beam 5. One side of the reinforcing rib 6 abuts against one side of the door frame 1 and the support beam 5. Several insert blocks 10 for inserting the reinforcing rib 6 are fixedly installed between the top edge of the door frame 1 and the inner arc surface of the support beam 5. Two horizontally distributed threaded rods 8 are symmetrically fixedly installed on the inner arc surface of the support beam 5. The two threaded rods 8 are fitted with stop bars 7 for abutting the other side of the reinforcing rib 6. After the door frame 1 is fixed in position by using the insert blocks 10, the reinforcing rib 6 can be lifted up by hoisting and the reinforcing rib 6 can be stably installed between the support beam 5 and the door frame 1 by inserting it with the insert blocks 10. This can help to reinforce the support beam 5 and ensure that the support beam 5 can withstand greater pressure. The stop bars 7 are inserted into the threaded rods 8 at both ends and fixed to the threaded rods 8 by installing nuts on the threaded rods 8. Therefore, the stop bars 7 can prevent the reinforcing rib 6 from falling off.

[0027] The working principle is as follows: the door frame 1 and the support beam 5 are installed in the corresponding positions, the embedded track 2 is embedded in the wall, the reinforcing rib 6 is hoisted and installed between the support beam 5 and the door frame 1 by the insertion of the insert block 10, and the position of the reinforcing rib 6 is fixed by the installation of the stop bar 7. When the door panel 4 needs to be opened, the insert post 15 extends and rises with the extension of the electric telescopic rod 14 and disengages from the positioning hole 9 and the hollow plate 13 on the surface of the diagonal pull arm 11. Then, the extension of the electric push rod 3 causes the slider 12 at the corresponding position to slide in the corresponding embedded track 2. By using the hinge of the diagonal pull arm 11, the slider 12 and the surface of the door panel 4, the door panel 4 can be driven to swing, so that the door panel 4 can be opened. After opening, the insert post 15 descends with the retraction of the electric telescopic rod 14 and inserts into the hollow position of the hollow plate 13 and into the positioning hole 9 on the surface of the diagonal pull arm 11, so that the position of the diagonal pull arm 11 can be fixed.

[0028] The wiring diagrams of the electric push rod 3 and the electric telescopic rod 14 in this utility model are common knowledge in the field. Their working principle is a well-known technology. The appropriate model is selected according to the actual use. Therefore, the control method and wiring layout of the electric push rod 3 and the electric telescopic rod 14 will not be explained in detail.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or equivalent variations to the above-disclosed technical content and apply them to other fields. However, any simple modifications, equivalent variations and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A protective door structure, comprising a door frame (1) and two door panels (4) hinged within the door frame (1), characterized in that: Two symmetrically distributed embedded tracks (2) are fixedly installed on one side of the door frame (1) and are level with the midpoint of the door panel (4). An electric push rod (3) is fixedly installed on the side of the embedded track (2) near the door frame (1). A slider (12) that is slidably connected to the inner wall of the embedded track (2) is fixedly installed on the telescopic end of the electric push rod (3). A horizontally swinging diagonal arm (11) is hinged to one side of the outer wall of the embedded track (2). The other free end of the diagonal arm (11) is hinged to the midpoint of the inner side of the adjacent door panel (4).

2. The protective door structure according to claim 1, characterized in that: The embedded track (2) is fixedly connected to the wall surface and the slots on the surfaces of the two embedded tracks (2) are arranged opposite each other.

3. The protective door structure according to claim 1, characterized in that: Both ends of the diagonal arm (11) extend upward and pass through the slider (12) and the door panel (4) respectively. An electric telescopic rod (14) is fixedly installed at the extended end of the diagonal arm (11).

4. The protective door structure according to claim 1, characterized in that: Both the slider (12) and the door panel (4) are fixedly installed with a hollowed-out disc (13) sleeved on the electric telescopic rod (14). The edge of the hollowed-out disc (13) is hollowed out, and positioning holes (9) are opened on the upper surface of the inclined pull arm (11) near both ends.

5. The protective door structure according to claim 4, characterized in that: Any of the positioning holes (9) is coaxially arranged with one of the hollows on the surface of the adjacent hollow disk (13), and a post (15) is inserted into the positioning hole (9) through one of the hollows on the surface of the hollow disk (13) and adjacent to the telescopic end of the electric telescopic rod (14) at the adjacent position.

6. The protective door structure according to claim 1, characterized in that: An arc-shaped support beam (5) is installed on the top edge of the door frame (1), and an integrally formed reinforcing rib (6) is provided between the door frame (1) and the support beam (5). One side of the reinforcing rib (6) abuts against one side of the door frame (1) and the support beam (5).

7. The protective door structure according to claim 6, characterized in that: Several insert blocks (10) for inserting reinforcing ribs (6) are fixedly installed between the top edge of the door frame (1) and the inner arc surface of the support beam (5). Two threaded rods (8) distributed in the horizontal direction are symmetrically fixedly installed on the inner arc surface of the support beam (5). A stop bar (7) for abutting the other side of the reinforcing rib (6) is sleeved on the two threaded rods (8).

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