Civil air defense door mounting bracket

Abstract

The civil air defense door installation support comprises a base, a supporting column, a telescopic beam and a hoist crane, the supporting column is vertically installed on the upper portion of the base, the upper end of the supporting column is connected with the middle of the telescopic beam through a first hinge, one end of the telescopic beam is connected with the middle of the supporting column through a screw, and the hoist crane is installed at the other end of the telescopic beam; the hoist is connected with a lifting lug at the upper part of the civil defense door through a steel cable; the base is in a U shape, and the two sides of the base are connected with the middles of the supporting columns through inclined supporting rods. The base, the supporting column and the telescopic beam form a supporting system, so that the hoist crane is supported, the hoist crane can pull up the civil air defense door from the horizontal state and move the civil air defense door to the position where the civil air defense door needs to be installed to be installed, the occupied upper portion height is small when the hoist crane is installed, tail gas is not generated, and pollution to air of an underground garage is avoided; and the health of workers is protected.

Description

Technical Field

[0001] This application relates to the technical field of civil air defense engineering construction equipment, and particularly to an installation bracket for civil air defense doors. Background Art

[0002] In civil air defense underground projects, heavy civil air defense doors are often installed at the entrances and exits, which can resist the impact of shock waves during wartime. For some small single-leaf civil air defense doors, their weight ranges from 300 kg to 600 kg. Currently, a forklift is needed to assist in the installation of civil air defense doors. However, the upper space required when the forklift is lifted is relatively large. However, in civil air defense underground projects, facilities such as ventilation pipes and fire pipes are usually installed on the top, which limits the lifting of the forklift. And the places where civil air defense doors need to be installed are usually the underground garages of some new communities or shopping malls. During the installation stage of the underground garage, the fan usually cannot operate, and the installation process is relatively long. The engine of the forklift will continue to operate during this period, and the exhaust gas discharged by the forklift will cause the environment of the underground garage to deteriorate and affect the health of construction workers. Therefore, an installation bracket for civil air defense doors is needed, which uses an electric hoist to lift the civil air defense door and other operations. It requires a small upper space when lifted and does not emit exhaust gas, ensuring the health of construction workers. Utility Model Content

[0003] To solve the above problems, this application proposes an installation bracket for civil air defense doors, which uses an electric hoist to lift the civil air defense door and other operations. It requires a small upper space when lifted and does not emit exhaust gas, ensuring the health of construction workers.

[0004] This application is achieved through the following technical solutions:

[0005] This application proposes an installation bracket for civil air defense doors, including: a base, a support column, a telescopic beam, and a hoist. The support column is vertically installed on the upper part of the base. The upper end of the support column is connected to the middle part of the telescopic beam through a first hinge. One end of the telescopic beam is connected to the middle part of the support column through a screw. The hoist is installed at the other end of the telescopic beam; the hoist is connected to the lifting lug on the upper part of the civil air defense door through a steel cable; the base is in a "C" shape, and both sides of the base are connected to the middle part of the support column through inclined support rods.

[0006] Further, the telescopic beam includes an outer tube and an inner tube. The inner tube is slidably connected to the inner wall of the outer tube, and a plurality of limit holes are provided at intervals on the outer tube. The inner tube is connected to the limit holes through a pin shaft.

[0007] Further, a first connecting member is provided at the end of the inner tube. The upper end of the first connecting member is connected to the end of the inner tube through a rotating shaft, and the lower end of the first connecting member is connected to the hoist through a bearing.

[0008] Further, a connecting plate is provided above the first hinge. The first hinge is connected to the outer tube through the connecting plate.

[0009] Furthermore, the support columns are provided with support plates, a second connecting member is arranged between the support plates, both sides of the second connecting member are hinged to the support plates, a turntable is installed on the second connecting member, the lower outer periphery of the turntable is rotationally connected to the second connecting member, a threaded hole is provided in the middle of the turntable, and the turntable is connected to the screw through the threaded hole.

[0010] Furthermore, rollers are provided at the lower part of the base.

[0011] The beneficial effects of this application: A support system is composed of the base, support columns, and telescopic beams to support the hoist, enabling the hoist to lift the civil air defense door from the flat state and move it to the position where it needs to be installed for the installation of the civil air defense door. The upper height occupied during the installation of the hoist is small, and no exhaust gas is generated, avoiding polluting the air in the underground garage and protecting the health of workers. Description of the Drawings

[0012] Figure 1 is a structural schematic diagram of the present utility model;

[0013] Figure 2 is a structural schematic diagram of the support plate of the present utility model;

[0014] In the figure: 1 - base, 2 - support column, 3 - telescopic beam, 4 - hoist, 5 - screw, 6 - first hinge, 7 - inclined support rod, 8 - outer tube, 9 - inner tube, 10 - limit hole, 11 - first connecting member, 12 - support plate, 13 - second connecting member, 14 - turntable, 15 - connecting plate, 16 - roller. Detailed Embodiments

[0015] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Among them, the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present utility model.

[0016] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0017] In addition, the descriptions involving "first", "second", etc. in this application are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the said features. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0018] As Figures 1 to 2 shown, an embodiment of the present utility model provides an installation bracket for a civil air defense door, including: a base 1, a support column 2, a telescopic beam 3, and a hoist 4. The support column 2 is vertically installed on the upper part of the base 1. The upper end of the support column 2 is connected to the middle of the telescopic beam 3 through a first hinge 6. One end of the telescopic beam 3 is connected to the middle of the support column 2 through a screw rod 5. The hoist 4 is installed at the other end of the telescopic beam 3; the hoist 4 is connected to the lifting lug on the upper part of the civil air defense door through a steel cable; the base 1 is in a "C" shape, and both sides of the base 1 are connected to the middle of the support column 2 through inclined support rods 7.

[0019] The civil air defense door is usually transported flat by vehicle to the construction site. After unloading, the civil air defense door is placed on the pallet on the ground. Before using the installation bracket for lifting, first adjust the length of the telescopic beam 3, and at the same time adjust the position of the screw rod 5 through the turntable 14, so as to adjust the pitching angle of the telescopic beam 3, making the telescopic beam 3 adapt to the height of the installation position of the civil air defense door and avoiding the telescopic beam 3 from scratching the ventilation pipe above. After the installation bracket is adjusted, move the installation bracket to one side of the civil air defense door, connect the hook on the hoist 4 to the lifting lug on the upper part of the civil air defense door. The hoist 4 is electrically driven. Pull up the upper end of the civil air defense door through the hoist 4, making the civil air defense door change from a horizontal state to a vertical state. Then push the installation bracket to the position where it needs to be installed. During installation, the height of the civil air defense door can be finely adjusted through the turntable 14, and the hoist 4 can rotate freely, and the angle of the civil air defense door can be adjusted, so that the hinge on the side of the civil air defense door can be quickly installed on the door frame, reducing the labor intensity of personnel. Through the support system composed of the base 1, the support column 2, the telescopic beam 3, the inclined support rod 7, etc., the telescopic beam 3 can provide support force to lift the hoist 4. The telescopic beam 3 adopts a cantilever beam structure, occupying a small space and facilitating the installation of the civil air defense door in positions with limited space such as underground garages. The hoist 4 can be electrically driven, and no exhaust gas is generated during installation, avoiding polluting the air in the underground garage and protecting the health of workers.

[0020] In a specific embodiment, the telescopic beam 3 includes an outer tube 8 and an inner tube 9. The inner tube 9 is slidably connected to the inner wall of the outer tube 8, and a plurality of limiting holes 10 are provided at intervals on the outer tube 8. The inner tube 9 is connected to the limiting holes 10 through a pin shaft. By sliding the inner tube 9 in the outer tube 8, the total length of the telescopic beam 3 can be adjusted to meet the installation requirements of air defense doors of different sizes. After the pin shaft is inserted into the limiting hole 10, the sliding of the inner tube 9 in the outer tube 8 can be prevented, thereby preventing accidents during installation.

[0021] Specifically, a first connecting member 11 is provided at the end of the inner tube 9. The upper end of the first connecting member 11 is connected to the end of the inner tube 9 through a rotating shaft, and the lower end of the first connecting member 11 is connected to the hoist 4 through a bearing, so that the hoist 4 can swing and rotate, enabling the hoist 4 to adjust the angle adaptively during lifting and to rotate along with the air defense door during installation, facilitating the installation of the air defense door.

[0022] Specifically, a connecting plate 15 is provided on the upper part of the first hinge 6. The first hinge 6 is connected to the outer tube 8 through the connecting plate 15. The connecting plate 15 can increase the contact area between the hinge and the outer tube 8, avoiding prestress concentration at this position.

[0023] In a preferred embodiment, as Figure 2 shown, the support column 2 is provided with a support plate 12. A second connecting member 13 is provided between the support plates 12. Both sides of the second connecting member 13 are hinged to the support plates 12. A turntable 14 is installed on the second connecting member 13. The lower outer circumference of the turntable 14 is rotatably connected to the second connecting member 13. A threaded hole is provided in the middle of the turntable 14. The turntable 14 is connected to the screw rod 5 through the threaded hole. The turntable 14 can rotate relative to the second connecting member 13, and the second connecting member 13 can swing to adapt to the angular change when the screw rod 5 moves. After the turntable 14 rotates, the screw rod 5 can be pulled to move axially, thereby adjusting the pitching angle of the telescopic beam 3 to meet the installation requirements.

[0024] In a preferred embodiment, rollers 16 are provided at the lower part of the base 1, facilitating the movement of the air defense door and the installation bracket, thereby reducing the labor intensity of workers during installation.

[0025] Certainly, the present application can also have other various implementation manners. Based on this implementation manner, other implementation manners obtained by those of ordinary skill in the art without any creative labor belong to the scope protected by the present application.

Claims

1. An installation bracket for a civil air defense door, characterized in that, Comprising: A base (1), a support column (2), a telescopic beam (3), and a hoist (4). The support column (2) is vertically installed on the upper part of the base (1). The upper end of the support column (2) is connected to the middle part of the telescopic beam (3) through a first hinge (6). One end of the telescopic beam (3) is connected to the middle part of the support column (2) through a screw rod (5). The hoist (4) is installed at the other end of the telescopic beam (3). The hoist (4) is connected to the lifting lug on the upper part of the air defense door through a steel cable. The base (1) is in a "C" shape. Both sides of the base (1) are connected to the middle part of the support column (2) through inclined support rods (7).

2. The installation bracket for a civil air defense door according to claim 1, wherein, The telescopic beam (3) includes an outer tube (8) and an inner tube (9). The inner tube (9) is slidably connected to the inner wall of the outer tube (8). A plurality of limit holes (10) are provided at intervals on the outer tube (8). The inner tube (9) is connected to the limit holes (10) through a pin shaft.

3. The installation bracket for a civil air defense door according to claim 2, wherein A first connecting piece (11) is provided at the end of the inner tube (9). The upper end of the first connecting piece (11) is connected to the end of the inner tube (9) through a rotating shaft. The lower end of the first connecting piece (11) is connected to the hoist (4) through a bearing.

4. The installation bracket for a civil air defense door according to claim 2, characterized in that, A connecting plate (15) is provided above the first hinge (6). The first hinge (6) is connected to the outer tube (8) through the connecting plate (15).

5. The installation bracket for a civil air defense door according to claim 1, characterized in that, The support column (2) is provided with a support plate (12). A second connecting piece (13) is provided between the support plates (12). Both sides of the second connecting piece (13) are hinged to the support plates (12). A turntable (14) is installed on the second connecting piece (13). The outer periphery of the lower part of the turntable (14) is rotatably connected to the second connecting piece (13). A threaded hole is provided in the middle of the turntable (14). The turntable (14) is connected to the screw rod (5) through the threaded hole.

6. The installation bracket for a civil air defense door according to claim 1, wherein Rollers (16) are provided at the lower part of the base (1).

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