A wall-penetrating flood-prevention protection airtight door opening and closing device

Abstract

This utility model relates to the technical field of building flood prevention, and discloses a through-wall flood-proof protective airtight door opening and closing device. It includes a drive mechanism installed on one side of the wall, a manual clutch connected to the drive mechanism, a transmission shaft connected to the manual clutch and passing through the wall, a bevel gear assembly connected to the other end of the transmission shaft, and a connecting rod assembly driven by the bevel gear assembly. The other end of the connecting rod assembly is hinged to the backwater surface of the door leaf. The drive mechanism drives the transmission shaft to rotate, transmitting driving force to the bevel gear assembly. The bevel gear assembly drives the connecting rod assembly to move, thereby driving the door leaf to open and close. This through-wall flood-proof protective airtight door opening and closing device aims to solve the shortcomings of existing air-raid shelter doors and flood-proof doors in terms of performance, installation space requirements, and emergency response capabilities. The opening and closing device of this invention has a compact structure, occupies little space, and is installed on the backwater surface of the door leaf, extending its service life.

Description

Technical Field

[0001] This utility model relates to the technical field of building flood prevention, and in particular to a through-wall flood prevention and protective airtight door opening and closing device. Background Technology

[0002] With the increasing development and utilization of underground space, especially in special environments such as civil defense projects, swing doors such as civil defense doors and flood doors have become essential facilities. Most existing flood door technologies use electric actuators to open and close the door panels, creating a high sealing pressure to block water flow. However, this electric actuator drive structure requires a large space to be reserved at the door jamb during installation, making it difficult to directly retrofit and modify existing underground entrances.

[0003] Furthermore, electric push-rod floodgates also have certain limitations in use. For example, in the event of an emergency power outage, the push rod loses power, and the door cannot close effectively. Even if a manual operation function is available, its complex structure often makes operation inconvenient and hinders rapid response. Therefore, existing floodgates have the following shortcomings:

[0004] 1. The electromechanical components of the opening and closing mechanism are located on the water-facing side, making them difficult to operate or prone to failure due to water damage, and there is also a risk of electric leakage.

[0005] 2. The large size of the opening and closing mechanism limits its application in underground spaces, especially in narrow entrances and exits;

[0006] 3. The opening / closing mechanism takes a long time to open / close, making it difficult to meet the rapid response needs of sudden floods. Utility Model Content

[0007] In order to overcome the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a through-wall flood-proof and airtight door opening and closing device, which aims to solve the shortcomings of existing civil defense doors and flood-proof doors in terms of performance, installation space requirements and emergency response capabilities. The opening and closing device of this invention has a compact structure, occupies little space, is installed on the back side of the door leaf, and extends its service life.

[0008] To achieve the above objectives, this utility model provides a through-wall flood-proof and airtight door opening and closing device, including a drive mechanism installed on one side of the wall, a manual clutch connected to the drive mechanism, a transmission shaft connected to the manual clutch and passing through the wall, a bevel gear assembly connected to the other end of the transmission shaft, and a connecting rod assembly that is pulverizedly connected to the bevel gear assembly; the other end of the connecting rod assembly is hinged to the back surface of the door leaf, the drive mechanism drives the transmission shaft to rotate and transmits the driving force to the bevel gear assembly, and the bevel gear assembly drives the connecting rod assembly to move to drive the door leaf to open and close.

[0009] Furthermore, the bevel gear assembly includes a first bevel gear connected to the drive shaft and a second bevel gear meshing with the first bevel gear, with the axes of the first bevel gear and the second bevel gear being arranged perpendicularly.

[0010] Preferably, the linkage assembly includes an active opening / closing linkage connected to the second bevel gear and an active opening / closing linkage hinged to the active opening / closing linkage; a linkage seat is installed on the backwater surface of the door leaf, and the other end of the active opening / closing linkage is hinged to the linkage seat via a pin.

[0011] Preferably, the drive mechanism includes a motor, a reducer connected to the motor, and the manual clutch is connected to the output shaft of the reducer.

[0012] Furthermore, a universal joint coupling is connected between the drive shaft and the bevel gear assembly.

[0013] Preferably, a pre-embedded through-wall pipe is provided in the wall, and the drive shaft passes through the pre-embedded through-wall pipe; a sealing pipe is provided as an outer sleeve for the pre-embedded through-wall pipe.

[0014] Therefore, compared with the prior art, the through-wall flood-proof and airtight door opening and closing device of this utility model has at least the following advantages:

[0015] Beneficial effects:

[0016] 1. Some components of the opening and closing device of the present invention are embedded in the wall, reducing the space occupied by external mechanical parts; after the door is opened, there are no mechanical accessories attached to the door surface, which is visually beautiful and does not occupy the passage width.

[0017] 2. The motor and reducer of the opening and closing device of the present invention are installed on the back side of the door leaf. When in use, there is no risk of water immersion of the electromechanical components and control circuit, and there is no need to use a waterproof motor. It is also convenient for daily inspection and maintenance, while reducing the corrosion of the equipment by the external environment (such as water and dust) and extending its service life.

[0018] 3. The opening and closing device of the present invention has wide applicability. Such a mechanism can be adapted to different door types and scenario requirements. It is suitable for new construction projects and can also be easily installed and modified directly on existing protective airtight doors.

[0019] 4. The opening and closing device of the present invention is equipped with a manual clutch function. Even in the event of a power outage, the connection between the output shaft and the transmission shaft of the reducer can be disconnected by the clutch operation, so as to realize the manual opening and closing of the door. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the through-wall flood-proof and airtight door opening and closing device of this utility model;

[0022] Figure 2 for Figure 1 Enlarged schematic diagram of key parts;

[0023] Figure 3 This is a schematic diagram of the bevel gear assembly of this utility model.

[0024] In the diagram: 1-Motor; 2-Reducer; 3-Manual clutch; 4-Embedded through-wall pipe; 5-Sealing pipe; 6-Drive shaft; 7-Universal joint coupling; 8-Bevel gear assembly; 9-Opening / closing active linkage; 10-Opening / closing driven linkage; 11-Linkage seat; 12-Door leaf; 13-Hinge. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] See below Figures 1-3 This invention provides a detailed description of the through-wall flood-proof and airtight door opening and closing device.

[0027] like Figure 1-3As shown, the wall-penetrating flood-proof airtight door opening and closing device of this utility model includes a drive mechanism installed on one side of the wall, a manual clutch 3 connected to the drive mechanism, a transmission shaft 6 connected to the manual clutch 3 and passing through the wall, a bevel gear assembly 8 connected to the other end of the transmission shaft 6, and a connecting rod assembly that is drively connected to the bevel gear assembly 8. The drive mechanism of this utility model includes a motor 1, a reducer 2 connected to the motor 1, and the manual clutch 3 connected to the output shaft of the reducer 2. A universal joint coupling 7 is connected between the transmission shaft 6 and the bevel gear assembly 8. A pre-embedded wall-penetrating pipe 4 is provided in the wall, through which the transmission shaft 6 passes. A sealing pipe 5 is fitted over the pre-embedded wall-penetrating pipe 4. By setting the pre-embedded wall-penetrating pipe 4 and the sealing pipe 5, the transmission shaft 6 can pass through the wall easily while also being protected, thus improving its service life.

[0028] The other end of the linkage assembly of this utility model is hinged to the back surface of the door leaf 12. The drive mechanism drives the transmission shaft 6 to rotate, transmitting the driving force to the bevel gear assembly 8. The bevel gear assembly 8 drives the linkage assembly to move, thereby driving the door leaf 12 to open and close. The door leaf 12 is hinged to the door frame installed on the wall via a hinge 13.

[0029] Specifically, the bevel gear assembly 8 includes a first bevel gear 801 connected to the drive shaft 6 and a second bevel gear 802 meshing with the first bevel gear 801. The axes of the first bevel gear 801 and the second bevel gear 802 are arranged perpendicularly to convert the movement parallel to the surface of the door leaf 12 into movement perpendicular to the direction of the door leaf 12, so as to facilitate the opening and closing operation of the door leaf 12 by the drive mechanism.

[0030] Additionally, the linkage assembly includes an active opening / closing linkage 9 connected to the second bevel gear 802 and a driven opening / closing linkage 10 hinged to the active opening / closing linkage 9. The active opening / closing linkage 9 includes a short link along the axis of the second bevel gear 802 and a long link perpendicularly connected to the short link. The short link is connected to the second bevel gear 802 via a keyway and a key, transmitting torque to the long link, causing the long link to rotate about the axis of the second bevel gear 802, thereby driving the driven opening / closing linkage 10 to open and close the door leaf 12.

[0031] In this utility model, a connecting rod seat 11 is installed on the back side of the door leaf 12, and the other end of the opening and closing driven connecting rod 10 is hinged to the connecting rod seat 11 by a pin.

[0032] Below, refer to Figures 1 to 3 Based on the above description of structural features, the method of using the through-wall flood-proof and airtight door opening and closing device of this utility model is briefly described as follows:

[0033] Motor 1 and reducer 2 provide power, driving drive shaft 6 and universal joint coupling 7 to transmit driving force to bevel gear assembly 8, which then rotates to opening / closing active linkage 9. Opening / closing active linkage 9 drives opening / closing driven linkage 10, which is hinged to linkage seat 11 via a pin to drive the opening and closing of door leaf 12. In the event of a power outage, the door leaf 12 can be manually opened and closed by disengaging the manual clutch 3 connected to the output shaft of reducer 2, thus disconnecting the output shaft of reducer 2 from drive shaft 6.

[0034] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any transformations or substitutions that can be understood by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of this utility model.

Claims

1. A wall-penetrating flood protection security door opening and closing device, characterized in that, It includes a drive mechanism installed on one side of the wall, a manual clutch (3) connected to the drive mechanism, a drive shaft (6) connected to the manual clutch (3) and passing through the wall, a bevel gear assembly (8) connected to the other end of the drive shaft (6), and a connecting rod assembly that is driven by the bevel gear assembly (8). The other end of the linkage assembly is hinged to the back surface of the door leaf (12). The drive mechanism drives the transmission shaft (6) to rotate and transmits the driving force to the bevel gear assembly (8). The bevel gear assembly (8) drives the linkage assembly to move to drive the door leaf (12) to open and close.

2. The wall-penetrating flood-prevention protection sealed door opening and closing device according to claim 1, characterized in that, The bevel gear assembly (8) includes a first bevel gear (801) connected to the drive shaft (6) and a second bevel gear (802) meshing with the first bevel gear (801). The axes of the first bevel gear (801) and the second bevel gear (802) are arranged perpendicularly.

3. The wall-penetrating flood-prevention protection door opening and closing device according to claim 2, characterized in that, The linkage assembly includes an opening and closing active linkage (9) connected to the second bevel gear (802) and an opening and closing driven linkage (10) hinged to the opening and closing active linkage (9); A connecting rod seat (11) is installed on the back side of the door leaf (12), and the other end of the opening and closing driven connecting rod (10) is hinged to the connecting rod seat (11) by a pin.

4. The through-wall flood-proof and airtight door opening and closing device according to claim 1, characterized in that, The drive mechanism includes a motor (1) and a reducer (2) connected to the motor (1), and the manual clutch (3) is connected to the output shaft of the reducer (2).

5. The through-wall flood-proof and airtight door opening and closing device according to claim 1, characterized in that, A universal joint coupling (7) is connected between the drive shaft (6) and the bevel gear assembly (8).

6. The through-wall flood-proof and airtight door opening and closing device according to claim 1, characterized in that, The wall is provided with a pre-embedded through-wall pipe (4), and the drive shaft (6) passes through the pre-embedded through-wall pipe (4); the pre-embedded through-wall pipe (4) is covered with a sealing pipe (5).

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