A swing-arm type flood-proof and airtight door opening and closing device

Abstract

This utility model relates to the technical field of building flood prevention, and discloses a swing-arm type flood-proof and airtight door opening and closing device. It includes a drive mechanism mounted on a concrete side wall via a bracket and located on the back side of the door leaf; a manual latch assembly connected to the drive mechanism; and a swing arm connected to the manual latch assembly. The other end of the swing arm is slidably connected to a groove mounted on the back side of the door leaf. The drive mechanism drives the end of the swing arm to slide linearly in the groove, thereby opening and closing the door leaf. This swing-arm type flood-proof and 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. Installed on the back side of the door leaf, it has low operating and maintenance costs and allows for quick manual opening and closing of the door leaf.

Description

Technical Field

[0001] This utility model relates to the technical field of building flood prevention, and in particular to a swing-arm type 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] a. The opening and closing mechanism is located on the water-facing side. When the water is flooded, the electromechanical components in the opening and closing mechanism are not easy to operate or may malfunction due to water damage, and there is also a risk of electric leakage.

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

[0006] c. The opening / closing mechanism takes a long time, 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 swing-arm type 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. It is installed on the back side of the door leaf, has low use and maintenance costs, and can quickly open and close the door leaf manually.

[0008] To achieve the above objectives, this utility model provides a swing-arm type flood-proof and airtight door opening and closing device, including a drive mechanism mounted on a concrete side wall via a bracket and located on the back side of the door leaf, a manual latch assembly connected to the drive mechanism, and a swing arm connected to the manual latch assembly; the other end of the swing arm is slidably connected to a groove mounted on the back side of the door leaf, and the drive mechanism drives the end of the swing arm to slide linearly in the groove and drives the door leaf to open and close.

[0009] Furthermore, the manual latch assembly includes an arc-shaped connecting rod, a positioning pin passing through the arc-shaped connecting rod, and a pull-out pin; one end of the arc-shaped connecting rod is connected to the drive mechanism, and the other end forms a slot for one end of the swing arm to be inserted into. After the swing arm is inserted into the slot, the arc-shaped connecting rod and the swing arm are connected by the positioning pin and the pull-out pin.

[0010] Preferably, the other end of the swing arm is provided with a pulley containing a bearing, the pulley being slidably connected in the concave groove of the slide groove, and the top of the slide groove having a stop to prevent the pulley from sliding out.

[0011] Preferably, the drive mechanism includes a motor, a reducer connected to the motor, and the arc-shaped connecting rod is connected to the output shaft of the reducer.

[0012] Furthermore, the other end of the arc-shaped connecting rod and the swing arm are provided with positioning holes for the positioning pin and the insertion pin to pass through.

[0013] Preferably, the door leaf is rotatably connected to the door frame via a hinge.

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

[0015] Beneficial effects:

[0016] (1) The opening and closing device of the present invention has a large transmission angle and saves effort, that is, the transmission angle when the door leaf goes from the open state to the closed state or from the closed state to the open state is greater than 50°.

[0017] (2) The opening and closing device of the present invention is installed on the back side of the door leaf. When in use, the electromechanical components and circuits in the mechanism are not at risk of being submerged in water, and there is no need to use a waterproof motor, resulting in low usage and maintenance costs.

[0018] (3) The opening and closing device of the present invention has a compact structure and occupies little space, and can realize opening and closing in a limited space; and it is easy to install, which is suitable for new construction projects and can be directly installed on existing civil defense doors and flood prevention doors without affecting the main structure of the existing door leaf.

[0019] (4) The opening and closing device of the present invention can be manually opened and closed quickly in the event of a power outage by manually removing the positioning pin and the insertion pin. 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 A schematic diagram of the structure of the swing-arm type flood-proof and airtight door opening and closing device of the utility model.

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0023] In the picture:

[0024] 1-Reducer; 2-Motor; 3-Hinge; 4-Door leaf; 5-Manual latch assembly; 6-Swing arm; 7-Slide rail; 8-Door frame; 101-Key; 501-Positioning pin; 502-Pull-out pin. 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 1-2 This invention provides a detailed description of the swing-arm type flood-proof and airtight door opening and closing device.

[0027] like Figure 1-2 As shown, the swing-arm type flood-proof and airtight door opening and closing device of this utility model includes a drive mechanism mounted on a concrete side wall via a bracket and located on the back side of the door leaf 4, a manual latch assembly 5 connected to the drive mechanism, and a swing arm 6 connected to the manual latch assembly 5. The other end of the swing arm 6 is slidably connected to a sliding groove 7 mounted on the back side of the door leaf 4. The drive mechanism drives the end of the swing arm 6 to slide linearly in the sliding groove 7 and drives the door leaf 4 to open and close. The door leaf 4 is rotatably connected to the door frame 8 via a hinge 3.

[0028] The manual latch assembly 5 includes an arc-shaped connecting rod, a positioning pin 501 passing through the arc-shaped connecting rod, and a pull-out pin 502. One end of the arc-shaped connecting rod is connected to the drive mechanism, and the other end forms a slot for inserting one end of the swing arm 6. Positioning holes for the positioning pin 501 and pull-out pin 502 to pass through are provided on both the other end of the arc-shaped connecting rod and the swing arm 6. After the swing arm 6 is inserted into the slot, the positioning pin 501 and pull-out pin 502 pass through the corresponding positioning holes to connect the arc-shaped connecting rod and the swing arm 6. After removing the positioning pin 501 and pull-out pin 502, the manual latch assembly 5 and the swing arm 6 are disengaged and can move independently, thus allowing the door leaf 4 to be opened manually. The arc-shaped connecting rod of the manual latch assembly 5 ensures that the manual latch assembly 5 does not interfere with the wall during movement.

[0029] The drive mechanism includes a motor 2, a reducer 1 connected to the motor 2, and an arc-shaped connecting rod connected to the output shaft of the reducer 1. The end of the arc-shaped connecting rod is provided with a shaft hole that matches the output shaft of the reducer 1. The output shaft of the reducer 1 is connected to the shaft hole of the arc-shaped connecting rod through a key 101 and a keyway, so as to transmit the power of the motor 2 to the manual latch assembly 5, thereby driving the arc-shaped connecting rod to rotate around the output shaft of the reducer 1.

[0030] In addition, the other end of the swing arm 6 is provided with a pulley containing a bearing. The pulley is slidably connected in the concave groove of the slide groove 7. The top of the slide groove 7 has a stop to prevent the pulley from sliding out, ensuring that the swing arm 6 will not come out of the slide groove 7.

[0031] Below, refer to Figures 1 to 2 Based on the above description of structural features, the method of using the swing-arm type flood-proof and airtight door opening and closing device of this utility model is briefly described as follows:

[0032] Motor 2 and reducer 1 are mounted on the concrete side wall via brackets. Motor 2 and reducer 1 drive the swing arm 6 to rotate. The swing arm 6 is connected to the door leaf 4 via a sliding groove 7 installed on the back surface of the door leaf 4 to drive the opening and closing of the door leaf 4. During the opening and closing process, the bottom end of the swing arm 6 slides linearly in the concave groove of the sliding groove 7, generating driving force, thereby driving the door leaf 4 to open and close.

[0033] During operation, the output shaft of the reducer 1 is connected to the manual latch assembly 5 via key 101, driving the swing arm 6 to work; when the power is off, the motor 2 cannot work, and the positioning pin 501 and the plug pin 502 in the manual latch assembly 5 can be pulled out to manually open and close the door leaf 4.

[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 swing arm type flood protection security door opening and closing device, characterized in that, It includes a drive mechanism mounted on a concrete side wall via a bracket and located on the back side of the door leaf (4), a manual latch assembly (5) connected to the drive mechanism, and a swing arm (6) connected to the manual latch assembly (5); The other end of the swing arm (6) is slidably connected to the slide groove (7) installed on the back surface of the door leaf (4). The driving mechanism drives the end of the swing arm (6) to slide linearly in the slide groove (7) and drives the door leaf (4) to open and close.

2. The swing arm type flood protection door opening and closing device according to claim 1, wherein The manual latch assembly (5) includes an arc-shaped connecting rod, a positioning pin (501) passing through the arc-shaped connecting rod, and a pull-out pin (502); One end of the arc-shaped connecting rod is connected to the drive mechanism, and the other end of the connecting rod forms a slot for inserting one end of the swing arm (6). After the swing arm (6) is inserted into the slot, the arc-shaped connecting rod and the swing arm (6) are connected by a positioning pin (501) and a plug-in pin (502).

3. The swing-arm type flood-prevention shield door opening and closing device according to claim 2, wherein The other end of the swing arm (6) is provided with a pulley containing a bearing, which is slidably connected in the concave groove of the slide groove (7), and the top of the slide groove (7) has a stop to prevent the pulley from sliding out.

4. The swing arm type flood protection door opening and closing device according to claim 2, wherein The drive mechanism includes a motor (2) and a reducer (1) connected to the motor (2), and the arc-shaped connecting rod is connected to the output shaft of the reducer (1).

5. The swing arm type flood protection door opening and closing device according to claim 2, wherein The other end of the arc-shaped connecting rod and the swing arm (6) are provided with positioning holes for the positioning pin (501) and the insertion pin (502) to pass through.

6. The swing arm type flood protection door opening and closing device according to claim 1, wherein The door leaf (4) is rotatably connected to the door frame (8) via a hinge (3).

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