Fireproof cover for passage

Abstract

The utility model provides a fireproof cover plate for a passage, comprising a cover plate body, a fireproof transparent glass is fixedly installed on the inner side of the cover plate body, a protective plate located above the fireproof transparent glass is mounted on the inner side of the cover plate body, a baffle located outside the cover plate body is arranged on the outer side of the protective plate, a positioning column is arranged on the top of the protective plate, a handle is arranged on the side of the baffle plate, and a locking mechanism located on one side of the handle is arranged on the outer side of the baffle plate. The fireproof cover plate for the passage can release the limit of the card plate by the limit column while rotating the card plate around the axial direction of the fixed column, so that the personnel can pull the protective plate through the handle without opening the cover plate body. At this time, the personnel outside the passage can directly observe the situation in the passage through the fireproof transparent glass. Even if a fire occurs in the passage, it is not necessary to open the cover plate body, and the personnel can directly observe the fire situation in the passage through the fireproof transparent glass.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof cover plates, and specifically discloses a fireproof cover plate for a passage. Background Art

[0002] Chinese patent application No. CN202121076754.7 discloses a fireproof cover for a passage; it includes a cover body, the cover body includes an upper top plate, a lower bottom plate and a side plate for connecting the upper top plate and the lower bottom plate, a cavity is provided between the upper top plate and the lower bottom plate, a plurality of support columns are provided in the cavity, the support columns are provided as a hollow structure, and the cross-section is provided as a U-shaped structure, two sets of lifting devices are symmetrically provided at the front and rear of the lower part of the cover body, the lifting device includes an adjusting bracket, a gas spring and a fixed bracket, the fixed bracket is fixed to the wall, the adjusting bracket is fixed under the lower bottom plate, the gas spring is installed between the adjusting bracket and the fixed bracket, the cover body is connected to the wall through a plurality of hinge devices at one end close to the adjusting bracket, sealing devices are symmetrically provided at the lower sides of the cover body, the sealing device includes a cover frame, the cover frame is fixed to the wall by expansion bolts, sealing strips 1 and 2 are installed on the top of the cover frame, and sealing strips 4 are provided at the bottom of the cover frame.

[0003] The above-mentioned cover body needs to be opened before the condition in the passage can be observed. If a fire occurs in the passage, directly opening the cover body will cause outside air to enter the passage, making the fire more serious. Utility Model Content

[0004] In view of the above-mentioned defects or shortcomings in the prior art, the present application aims to provide a fireproof cover for a channel, comprising a cover body, a fireproof transparent glass is fixedly installed on the inner side of the cover body, and a protective plate located above the fireproof transparent glass is mounted on the inner side of the cover body, a baffle located on the outer side of the cover body is arranged on the outer side of the protective plate, a positioning column is arranged on the top of the protective plate, a handle is arranged on the side of the baffle, and a locking mechanism is arranged on the outer side of the baffle and located on one side of the handle.

[0005] Preferably, the locking mechanism includes a limiting column arranged on the cover body and a fixing column and a limiting rod arranged on the baffle, the outer movable sleeve of the fixing column is provided with a clamping plate clamped on the outer side of the limiting column, and a clamping ring is clamped on the outer side of one end of the fixing column extending outside the clamping plate.

[0006] Preferably, rectangular grooves with equal spacing are opened inside both sides of the protective plate, guide wheels are placed inside the rectangular grooves, and the internal movable sleeve of the guide wheel is provided with a fixed shaft fixedly sleeved inside the protective plate.

[0007] Preferably, a boss located on one side of the guide wheel is provided on the inner side of the cover plate body.

[0008] Beneficial effects:

[0009] 1. The passage uses a fireproof cover plate. By rotating the card plate around the axial direction of the fixed column, the limit of the card plate by the limit column can be released, so that the personnel can pull the protective plate through the handle without opening the cover body. At this time, the personnel outside the passage can directly observe the situation in the passage through the fireproof transparent glass. Even if a fire occurs in the passage, there is no need to open the cover body, and the personnel can directly observe the fire situation in the passage through the fireproof transparent glass.

[0010] 2. The passage uses a fireproof cover plate, which can provide limited support for the protection plate through the cooperation of the guide wheel and the fixed shaft, while reducing the friction between the protection plate and the cover plate body, so that personnel can manually open and close the protection plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a bottom schematic diagram of the structure of the utility model;

[0014] Figure 3 It is a schematic diagram of opening the protective plate of the utility model structure;

[0015] Figure 4 It is a side sectional view of the structure of the utility model;

[0016] Figure 5 for Figure 1 A magnified schematic diagram of the structure at center A;

[0017] Figure 6 for Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0018] Figure 7 for Figure 4 A magnified schematic diagram of the structure at center C.

[0019] In the figure: 1. cover body; 2. fireproof transparent glass; 3. protective plate; 4. baffle; 5. positioning column; 6. handle; 7. locking mechanism; 71. limit column; 72. fixed column; 73. limit rod; 74. clamping plate; 75. clamping ring; 8. rectangular groove; 9. guide wheel; 10. fixed shaft; 11. boss. DETAILED DESCRIPTION

[0020] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0021] The accompanying drawings in the embodiments of the present invention: different types of section lines in the drawings are not marked according to national standards, nor do they impose any requirements on the materials of the components. Instead, they are used to distinguish the cross-sectional views of the components in the drawings.

[0022] See also Figure 1-7 A fireproof cover for a passage comprises a cover body 1, a fireproof transparent glass 2 is fixedly mounted on the inner side of the cover body 1, and a protective plate 3 is mounted on the inner side of the cover body 1 and is located above the fireproof transparent glass 2. After the protective plate 3 is opened, personnel can directly observe the situation in the passage through the fireproof transparent glass 2 from the outside of the passage. A baffle 4 is arranged on the outer side of the protective plate 3 and is located on the outer side of the cover body 1. A positioning column 5 is arranged on the top of the protective plate 3. The positioning column 5 can be used to limit the protective plate 3 to prevent the protective plate 3 from falling off from the inner side of the cover body 1. A handle 6 is arranged on the side of the baffle 4. The side of the cover body 1 can be shielded and sealed by the baffle 4. A locking mechanism 7 is arranged on the outer side of the baffle 4 and is located on one side of the handle 6.

[0023] The locking mechanism 7 includes a limiting column 71 arranged on the cover body 1 and a fixing column 72 and a limiting rod 73 arranged on the baffle 4. The outer movable sleeve of the fixing column 72 is provided with a clamping plate 74 clamped on the outer side of the limiting column 71, and the outer side of one end of the fixing column 72 extending from the outside of the clamping plate 74 is clamped with a clamping ring 75. The limiting column 71 and the clamping plate 74 cooperate to limit and fix the protective plate 3, so that the protective plate 3 will not automatically detach from the inner side of the cover body 1 after closing, ensuring that the cover body 1 can be opened normally. At the same time, the clamping plate 74 can be limited by the limiting rod 73, so that the clamping plate 74 will not contact the ground, so as to facilitate the pushing and pulling of the protective plate 3 by the handle 6.

[0024] Among them, rectangular grooves 8 with equal intervals are opened inside both sides of the protective plate 3, and guide wheels 9 are placed inside the rectangular grooves 8. The internal movable sleeve of the guide wheel 9 is provided with a fixed shaft 10 fixedly sleeved inside the protective plate 3. Through the coordinated use of the guide wheel 9 and the fixed shaft 10, the top and bottom of the protective plate 3 will not contact the cover body 1 during the movement, thereby reducing the friction between the protective plate 3 and the cover body 1, so that people can manually push and pull the protective plate 3.

[0025] Among them, a boss 11 located on one side of the guide wheel 9 is provided on the inner side of the cover body 1. The boss 11 can limit the guide wheel 9 and the protective plate 3 at the same time, so that when the protective plate 3 moves, its two sides will not come into contact with the cover body 1, ensuring that when the protective plate 3 moves, the contact between the guide wheel 9 and the cover body 1 is always used to limit and support the protective plate 3.

[0026] When the fireproof cover is in use, the clamping plate 74 is rotated around the axial direction of the fixing column 72, and the clamping plate 74 is limitedly supported by the limiting rod 73. At this time, the clamping plate 74 is completely separated from the outer side of the limiting column 71, and the protective plate 3 is pulled out from the inner side of the cover body 1 by the handle 6 until the positioning column 5 contacts the cover body 1, and the protective plate 3 stops moving. At this time, the personnel outside the passage can directly observe the situation in the passage through the fireproof transparent glass 2;

[0027] When closing the protective plate 3, the protective plate 3 is pushed in the reverse direction by the handle 6 until the positioning column 5 contacts the cover body 1, the protective plate 3 stops moving, and the clamping plate 74 is rotated in the reverse direction and clamped on the outer side of the limiting column 71. The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A fireproof cover plate for a passage, comprising a cover plate body (1), characterized in that: The inner side of the cover body (1) is fixedly mounted with fireproof transparent glass (2), and the inner side of the cover body (1) is provided with a protective plate (3) located above the fireproof transparent glass (2), the outer side of the protective plate (3) is provided with a baffle (4) located outside the cover body (1), the top of the protective plate (3) is provided with a positioning column (5), the side of the baffle (4) is provided with a handle (6), and the outer side of the baffle (4) is provided with a locking mechanism (7) located on one side of the handle (6).

2. A fireproof cover for a passage according to claim 1, characterized in that: The locking mechanism (7) comprises a limiting column (71) arranged on the cover plate body (1), and a fixing column (72) and a limiting rod (73) arranged on the baffle plate (4); a clamping plate (74) clamped to the outside of the limiting column (71) is movably sleeved on the outside of the fixing column (72); and a clamping ring (75) is clamped to the outside of one end of the fixing column (72) extending outside the clamping plate (74).

3. The fireproof cover plate for a passage according to claim 1, characterized in that: Rectangular grooves (8) are provided at equal intervals inside both sides of the protection plate (3), guide wheels (9) are placed inside the rectangular grooves (8), and a fixed shaft (10) is sleeved inside the guide wheel (9) and sleeved inside the protection plate (3).

4. A fireproof cover for a passage according to claim 3, characterized in that: A boss (11) is provided on the inner side of the cover plate body (1) and is located on one side of the guide wheel (9).

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