A rotary steel explosion door

Abstract

The utility model discloses a rotary steel blast door, including door body, first pivot and damper, the door body is by a plurality of vertical setting steel sheet and is formed to the rotatable opening door leaf through the first pivot rotation connection between adjacent steel sheet, forms rotatable opening's door leaf, the damper is installed on the upper portion of door body, is used for buffering the rotation of door body, the damper includes connecting plate, second pivot and installation shell, and the one end of connecting plate is fixed with door body, and the other end is through second pivot and is rotatably connected with installation shell, is equipped with the mounting hole on connecting plate, and the push rod is slidably arranged in the hole, and the push rod is provided with the damping spring, and the both ends of spring respectively abut the mounting hole and the push rod end face, and the push rod compresses the damping spring and swings with connecting plate, realizes the damping buffer when door body opening or closing, avoids the impact caused by sudden rotation, improves the security and service life of blast door.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof door technology, and more specifically to a rotating steel explosion-proof door. Background Technology

[0002] Existing explosion-proof doors mostly use rigid pivots to achieve rotation directly, lacking effective buffer devices. When the door is opened or closed quickly, the hinges are easily loosened, the door frame is deformed, and even the explosion-proof performance is affected by inertial impact. Existing explosion-proof doors, such as those described in application number 202322460747.2 and the "An Explosion-proof Door (Authorization Announcement No. CN220815441U)", achieve buffering and protection by setting springs and damping blocks in the grooves of the door body and cooperating with magnets; however, their adjustable damping and stable guiding support during the rotation of the door body are insufficient, making it difficult to provide a continuous and controllable deceleration effect when heavy steel door panels rotate rapidly. Utility Model Content

[0003] The purpose of this utility model is to provide a rotating steel explosion-proof door in order to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution: This utility model proposes a rotating steel explosion-proof door, including a door body, a first rotating shaft and a damper. The door body is composed of several vertically arranged steel plates, and adjacent steel plates are rotatably connected through the first rotating shaft to form a door leaf that can be rotated and opened. The damper is disposed at the upper part of the door body and connected to the door body to provide damping buffer for the rotation of the door body. The damper includes a connecting plate, a second rotating shaft, and a mounting shell. One end of the connecting plate is fixedly connected to the door body, and the other end is rotatably connected to the mounting shell through the second rotating shaft. The connecting plate is provided with a reciprocating push rod through a mounting hole. A damping spring is sleeved on the push rod. One end of the damping spring abuts against the mounting hole, and the other end abuts against the end face of the push rod, so as to generate an elastic damping effect when the push rod moves, thereby achieving buffering during the rotation of the door body to open or close.

[0005] As a preferred technical solution of this utility model, the connecting plate is located at the upper end of the door and is fixedly connected to the door. The push rod is set along the movement direction of the connecting plate, so that the door drives the connecting plate to push the push rod during the opening process, and the compression damping spring generates buffer.

[0006] As a preferred technical solution of this utility model, the elastic force parameters of the damping spring are matched according to the mass of the door and the opening angle to ensure that the damping effect is stable during the rotation of the door.

[0007] The beneficial effects of this utility model are as follows: This invention achieves elastic buffering during door rotation by installing a damper on the upper part of the door and using a structure of connecting plate, second rotating shaft and push rod in conjunction with damping spring. This effectively reduces impact force, reduces structural wear, and improves the reliability and durability of the explosion-proof door. At the same time, the buffering process is smooth, reducing operational risks and improving the user experience. It is particularly suitable for industrial and protective applications that require frequent opening or rapid response. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the damper of this utility model; Figure 3 This is a schematic diagram of the damping structure of this utility model.

[0009] Reference numerals: 1. Damper; 2. First shaft; 3. Steel plate; 21. Connecting plate; 22. Second shaft; 23. Mounting housing; 24. Mounting hole; 25. Push rod; 26. Damping spring. Detailed Implementation Example 1

[0010] like Figures 1 to 3 As shown, this utility model discloses a rotating steel explosion-proof door, including a door body, a first rotating shaft 2, and a damper 1. The door body is composed of several vertically arranged steel plates 3, and adjacent steel plates 3 are rotatably connected by the first rotating shaft 2, so that the door body can rotate around the first rotating shaft 2 to realize opening and closing. The damper 1 is installed on the upper part of the door body to provide a buffering effect when the door body rotates. The damper 1 includes a connecting plate 21, a second rotating shaft 22, and a mounting shell 23. One end of the connecting plate 21 is fixedly connected to the upper end of the door body by welding or bolts, and the other end is rotatably connected to the mounting shell 23 through the second rotating shaft 22, so that the mounting shell 23 can rotate relative to the connecting plate 21 as the connecting plate 21 swings. A mounting hole 24 extending along its swing direction is provided on the connecting plate 21. A push rod 25 is slidably connected in the mounting hole 24. A damping spring 26 is sleeved on the push rod 25. One end of the damping spring 26 abuts against the inner wall of the mounting hole 24, and the other end abuts against the end face of the push rod 25. When the door rotates around the first pivot 2, the connecting plate 21 drives the push rod 25 to move along the direction of the mounting hole 24, compressing the damping spring 26, thereby generating a reverse elastic force to buffer the rotation speed of the door. When the door opens, the push rod 25 moves inward to compress the damping spring 26. After release, the door gradually decelerates to prevent door collision due to inertial impact. When the door closes, the damping spring 26 is compressed again and slowly released, allowing the door to land smoothly, avoiding metal impact, and improving the service life and safety performance of the explosion-proof door. By adjusting the stiffness and stroke of the damping spring 26, the buffering effect can be optimized according to the door mass and opening angle, so that the explosion-proof door can obtain ideal opening damping characteristics in different application scenarios.

[0011] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0012] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rotating steel explosion-proof door, comprising a door body, a first rotating shaft (2) and a damper (1), characterized in that, The door body is composed of several vertically arranged steel plates (3), and adjacent steel plates (3) are rotatably connected through the first rotating shaft (2) to form a door leaf that can be rotated and opened; the damper (1) is set on the upper part of the door body and connected to the door body to provide damping buffer for the rotation of the door body; The damper (1) includes a connecting plate (21), a second rotating shaft (22) and a mounting shell (23). One end of the connecting plate (21) is fixedly connected to the door body, and the other end is rotatably connected to the mounting shell (23) through the second rotating shaft (22). A push rod (25) that can reciprocate is provided on the connecting plate (21) through the mounting hole (24). A damping spring (26) is provided on the push rod (25). One end of the damping spring (26) abuts against the mounting hole (24), and the other end abuts against the end face of the push rod (25) so as to generate elastic damping when the push rod (25) moves, thereby achieving buffering during the rotation opening or closing of the door body.

2. A rotating steel explosion-proof door according to claim 1, characterized in that, The connecting plate (21) is located at the upper end of the door and is fixedly connected to the door. The push rod (25) is set along the movement direction of the connecting plate, so that the door drives the connecting plate to push the push rod (25) during the opening process, and the compression damping spring (26) generates buffer.

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