Air support type hole cover plate structure
By designing a gas-supported opening cover structure, using stainless steel cover plates, hinge mechanisms, and gas support devices, the problems of inconvenient operation and poor sealing of large-size opening covers are solved, achieving convenient opening and high-stability sealing, which is suitable for the safety protection of building openings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 国粮武汉科学研究设计院有限公司
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-21
AI Technical Summary
Existing opening cover structures are inconvenient to operate when used in large-sized openings, lack stability, and have poor sealing performance, posing safety hazards.
Design a gas-supported opening cover structure, which uses a stainless steel cover plate, hinge mechanism and gas support device, combined with sealing strip and foam board insulation layer to achieve convenient opening and high-stability sealing.
It achieves convenient operation, stable support and high sealing performance of the opening cover, preventing foreign objects from entering and gas leakage, and is suitable for safety protection of large-sized openings.
Smart Images

Figure CN224149213U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building opening safety protection technology, specifically relating to a gas-supported opening cover structure. Background Technology
[0002] During the construction or use of buildings, the presence of various openings (such as ventilation openings, inspection openings, pipe well openings, etc.) may pose safety hazards. The conventional practice is to make steel and wood cover plates according to national standard drawings and then cover them. However, when the size of the opening is large (such as an inspection manhole with a size of 840x840mm), the conventional steel and wood cover plate structure is difficult to apply.
[0003] Existing cover plate structures typically employ fixed or simple hinge designs, which present the following problems: First, opening and closing operations are not convenient enough, requiring significant manpower or tools; second, they lack a stable support structure, making them prone to closing due to accidental collisions or external forces when open, leading to safety accidents; and third, their sealing and stability are insufficient, failing to effectively prevent the entry of foreign objects or gas leakage. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a gas-supported opening cover structure that is compact, easy to operate, has high overall stability, and good sealing performance after closing, in order to address the shortcomings of the existing technology.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:
[0006] A gas-supported opening cover structure includes a cover body 100 that is adapted to the size of the opening body 300, and a gas support device 200 is connected between the cover body 100 and the opening body 300.
[0007] The cover plate body 100 includes a stainless steel cover plate 101, a universal lifting ring 102 is installed on the top surface of the stainless steel cover plate 101, and a sealing strip 103 is provided on the inner wall of the stainless steel cover plate 101.
[0008] The main body of the opening 300 includes an opening edge 301 and an opening platform 302. The stainless steel cover plate 101 is hinged to one end of the opening edge 301 via a hinge mechanism 400, and two sets of gas support devices 200 are symmetrically arranged on both sides of the opening edge 301.
[0009] The gas support device 200 includes a pressure cylinder 201, a piston rod 202, and a cylinder mounting component 203. The cylinder mounting component 203 is fixedly disposed on the opening platform 302 on both sides of the opening edge 301. The pressure cylinder 201 is mounted on the corresponding cylinder mounting component 203. The piston rod 202 is hinged to both sides of the stainless steel cover plate 101.
[0010] Preferably, the hinge mechanism 400 includes a hinge rotating end 401 and a hinge fixing end 402 that are hinged together. The hinge fixing end 402 is fixedly installed on the opening platform 302 at one end of the opening edge 301, and the hinge rotating end 401 is fixedly installed on the outer wall of the stainless steel cover plate 101.
[0011] Preferably, the sealing strip 103 is circumferentially arranged along the contact surface between the inner wall of the stainless steel cover plate 101 and the edge 301 of the opening.
[0012] Preferably, the stainless steel cover plate 101 is provided with a latch 104 at the middle of both sides, and the outer wall of the opening edge 301 is provided with a latch slot corresponding to the latch 104.
[0013] Preferably, the stainless steel cover plate 101 is equipped with cover plate handles 105 on both sides of the end away from the hinge mechanism 400.
[0014] Preferably, a foam insulation layer is provided below the top surface of the stainless steel cover plate 101.
[0015] Preferably, the universal lifting ring 102 is fixedly installed at the center of the top surface of the stainless steel cover plate 101.
[0016] Preferably, a gas support locking mechanism is provided between the pressure cylinder 201 and the piston rod 202 of the gas support device 200.
[0017] Preferably, multiple sets of the hinge mechanism 400 are arranged parallel to the opening platform 302 at one end of the opening edge 301.
[0018] Compared with the prior art, the present invention has the following main advantages:
[0019] 1. The gas-supported opening cover structure provided by this utility model, by reasonably setting a gas support device and a hinge mechanism between the cover body and the opening body, enables the opening cover to be opened conveniently and effortlessly. It has a compact structure, is easy to operate, has high overall stability, and is easy to install and maintain, and has a wide market application prospect.
[0020] 2. This utility model, through the cooperation of stainless steel cover plate, sealing strip, foam board insulation layer and opening edge, can ensure the sealing and stability of the opening. When used on the roof, it can effectively prevent it from being blown open by strong winds or rainwater from entering, and has a certain heat preservation effect, making it easy to promote. Attached Figure Description
[0021] Figure 1 This is a side sectional view of the opening and closing process of the gas-supported opening cover structure of this utility model;
[0022] Figure 2This is a plan view of the main body of the cover plate of this utility model;
[0023] Figure 3 This is a plan view of the main body of the opening of this utility model.
[0024] In the diagram: 100, cover plate body; 200, opening body; 300, gas spring device; 400, hinge mechanism; 101, stainless steel cover plate; 102, universal lifting ring; 103, sealing strip; 104, latch; 105, cover plate handle; 201, pressure cylinder; 202, piston rod; 203, cylinder mounting part; 301, opening edge; 302, opening platform; 401, hinge rotating end; 402, hinge fixed end. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0028] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0029] The features and performance of this application will be further described in detail below with reference to the embodiments.
[0030] This embodiment provides a gas-supported opening cover structure, such as... Figures 1-3As shown, it mainly includes: a cover plate body 100, an air support device 200 and an opening body 300. The size of the cover plate body 100 is adapted to the opening body 300, and the air support device 200 is connected between the cover plate body 100 and the opening body 300.
[0031] The cover plate body 100 includes a stainless steel cover plate 101, a universal lifting ring 102 is installed on the top surface of the stainless steel cover plate 101, and a sealing strip 103 is provided on the inner wall of the stainless steel cover plate 101.
[0032] The main body of the opening 300 includes an opening edge 301 and an opening platform 302. The stainless steel cover plate 101 is hinged to one end of the opening edge 301 via a hinge mechanism 400, and two sets of gas support devices 200 are symmetrically arranged on both sides of the opening edge 301.
[0033] The gas support device 200 includes a pressure cylinder 201, a piston rod 202, and a cylinder mounting component 203. The cylinder mounting component 203 is fixedly disposed on the opening platform 302 on both sides of the opening edge 301. The pressure cylinder 201 is mounted on the corresponding cylinder mounting component 203. The piston rod 202 is hinged to both sides of the stainless steel cover plate 101.
[0034] Furthermore, the hinge mechanism 400 includes a hinge rotating end 401 and a hinge fixing end 402 that are hinged together. The hinge fixing end 402 is fixedly installed on the opening platform 302 at one end of the opening edge 301, and the hinge rotating end 401 is fixedly installed on the outer wall of the stainless steel cover plate 101.
[0035] Furthermore, the sealing strip 103 is circumferentially arranged along the contact surface between the inner wall of the stainless steel cover plate 101 and the edge 301 of the opening.
[0036] Furthermore, the stainless steel cover plate 101 is provided with a latch 104 in the middle of both sides, and the outer wall of the opening edge 301 is provided with a latch slot corresponding to the latch 104.
[0037] Furthermore, cover handles 105 are installed on both sides of the end of the stainless steel cover plate 101 away from the hinge mechanism 400.
[0038] Furthermore, a foam insulation layer is provided below the top surface of the stainless steel cover plate 101.
[0039] Furthermore, the universal lifting ring 102 is fixedly installed at the center of the top surface of the stainless steel cover plate 101.
[0040] Furthermore, a gas support locking mechanism is provided between the pressure cylinder 201 and the piston rod 202 of the gas support device 200.
[0041] Furthermore, multiple sets of the hinge mechanism 400 are arranged parallel to the opening platform 302 at one end of the opening edge 301.
[0042] In practical use:
[0043] Opening process: Open the cover latch, start the gas spring device manually or electrically, the piston rod extends under gas pressure, pushing the cover to rotate around the hinge mechanism to the required angle, the gas spring locking mechanism automatically locks after reaching the specified angle, ensuring stable support of the cover.
[0044] Closing process: The gas spring locking mechanism is released, the gas spring device slowly retracts, and the cover plate closes smoothly under the action of gravity. The sealing strip on the inner wall of the cover plate fits tightly against the edge of the opening.
[0045] Emergency handling: If the gas spring fails, the cover can be temporarily secured with a manual auxiliary device (such as a spare support rod) to ensure safety.
[0046] Furthermore, all parts of this application that are not described in detail are the same as or implemented using existing technology.
[0047] In summary:
[0048] 1. The gas-supported opening cover structure provided by this utility model, by reasonably setting a gas support device and a hinge mechanism between the cover body and the opening body, enables the opening cover to be opened conveniently and effortlessly. It has a compact structure, is easy to operate, has high overall stability, and is easy to install and maintain, and has a wide market application prospect.
[0049] 2. This utility model, through the cooperation of stainless steel cover plate, sealing strip, foam board insulation layer and opening edge, can ensure the sealing and stability of the opening. When used on the roof, it can effectively prevent it from being blown open by strong winds or rainwater from entering, and has a certain heat preservation effect, making it easy to promote.
[0050] The above embodiments are only used to illustrate the design concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. The protection scope of this utility model is not limited to the above embodiments. Therefore, all equivalent changes or modifications made based on the principles and design ideas disclosed in this utility model are within the protection scope of this utility model.
Claims
1. A gas-supported opening cover structure, characterized in that: Includes a cover plate body (100) that is adapted to the size of the opening body (300), and a gas spring device (200) is connected between the cover plate body (100) and the opening body (300); The cover plate body (100) includes a stainless steel cover plate (101), a universal lifting ring (102) is installed on the top surface of the stainless steel cover plate (101), and a sealing strip (103) is provided on the inner wall of the stainless steel cover plate (101). The main body of the opening (300) includes an opening edge (301) and an opening platform (302). The stainless steel cover plate (101) is hinged to one end of the opening edge (301) by a hinge mechanism (400), and two sets of gas support devices (200) are symmetrically arranged on both sides of the opening edge (301). The gas support device (200) includes a pressure cylinder (201), a piston rod (202), and a cylinder mounting component (203). The cylinder mounting component (203) is fixedly installed on the opening platform (302) on both sides of the opening edge (301). The pressure cylinder (201) is installed on the corresponding cylinder mounting component (203). The piston rod (202) is hinged to both sides of the stainless steel cover plate (101).
2. The air-supported portal cover structure according to claim 1, wherein: The hinge mechanism (400) includes a hinge rotating end (401) and a hinge fixing end (402) that are hinged together. The hinge fixing end (402) is fixedly installed on the opening platform (302) at one end of the opening edge (301), and the hinge rotating end (401) is fixedly installed on the outer wall of the stainless steel cover plate (101).
3. The air-supported portal cover structure according to claim 1, wherein: The sealing strip (103) is circumferentially arranged along the contact surface between the inner wall of the stainless steel cover plate (101) and the edge (301) of the opening.
4. The air-supported portal cover structure according to claim 1, wherein: Both sides of the stainless steel cover plate (101) are provided with latches (104) in the middle, and the outer wall of the opening edge (301) is provided with latch slots corresponding to the latches (104).
5. The air-supported portal cover structure according to claim 1, wherein: The stainless steel cover plate (101) is equipped with cover plate handles (105) on both sides of the end away from the hinge mechanism (400).
6. The air-supported portal cover structure according to claim 1, wherein: A foam insulation layer is provided below the top surface of the stainless steel cover plate (101).
7. The air-supported portal cover structure according to claim 1, wherein: The universal lifting ring (102) is fixedly installed at the center of the top surface of the stainless steel cover plate (101).
8. The gas-supported opening cover structure according to claim 1, characterized in that: The gas support device (200) is provided with a gas support locking mechanism between the pressure cylinder (201) and the piston rod (202).
9. The air-supported portal cover structure according to claim 2, wherein: Multiple sets of the hinge mechanism (400) are arranged parallel to the opening platform (302) at one end of the opening edge (301).