Hollowed-out cover body

Abstract

The utility model relates to the technical field of hollow-out cover bodies, in particular to a hollow-out cover body which comprises an outer shell and an inner cylinder, the outer shell is fixedly connected with the inner cylinder, a plurality of limiting plates are connected in the outer shell in a sliding mode, one end, located between the outer shell and the inner cylinder, of each limiting plate is fixedly connected with a shielding plate, and the shielding plate is of a fan-shaped structure. Limiting plates are arranged in the shell, the lower ends of the limiting plates are of bent structures, external threads are arranged on the side wall of the shell, a threaded ring is in threaded connection with the surface of the external threads on the shell, a plurality of anti-skid grooves are formed in the side wall of the threaded ring, an elastic rope is arranged in the limiting plates in a penetrating mode, and the elastic rope is of a closed annular structure. By means of the structure, the size of the hollowed-out hole in the hollowed-out cover can be flexibly adjusted conveniently according to the use requirements of users, the use requirements of different users are met, and the use performance of the hollowed-out cover is improved to a certain degree.

Description

Technical Field

[0001] The utility model relates to the technical field of hollow-shaped covers, in particular to a hollow-shaped cover. Background Art

[0002] A hollow-shaped cover is a lid or covering with a hollow design, usually used for decoration or increasing ventilation performance. This design allows air and light to pass through the cover while keeping the item safe and protected, with the characteristics of beauty and practicality.

[0003] In the existing related technologies, the following defects often exist: during the actual use of the hollow-shaped cover, the hollow holes on the hollow-shaped cover are often in an open state, and it is inconvenient for personnel to flexibly adjust the use size of the hollow holes according to the use requirements, reducing the use effect of the hollow cover.

[0004] Therefore, the utility model provides a hollow-shaped cover. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the defect that the hole size on the hollow cover is inconvenient to adjust in the existing technology, and a hollow-shaped cover is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a hollow-shaped cover, including a housing and an inner cylinder, the housing and the inner cylinder are fixedly connected, a plurality of limiting plates are slidably connected inside the housing, one end of the limiting plate located between the housing and the inner cylinder is fixedly connected with a shielding plate, and the shielding plate is of a sector structure.

[0007] The effect achieved by the above components is that the shielding plates between the housing and the inner cylinder will simultaneously open outwards, thus facilitating the work of enlarging the hollow holes.

[0008] Preferably, the lower end of the limiting plate is of a bent structure.

[0009] The effect achieved by the above components is that the limiting plate with a bent structure facilitates the pushing work of the limiting plate.

[0010] Preferably, the side wall of the housing is provided with external threads, and a threaded ring is threadedly connected to the surface of the external threads on the housing.

[0011] The effect achieved by the above components is that during the process of twisting the threaded ring, relative movement occurs between the threaded ring and the bent part at the lower end of the limiting plate.

[0012] Preferably, a plurality of anti-slip grooves are provided on the side wall of the threaded ring.

[0013] The effects achieved by the above components are as follows: Rotating the threaded ring, the anti-slip grooves on the threaded ring increase the friction between the hand and the threaded ring, facilitating the twisting operation of the threaded ring.

[0014] Preferably, an elastic rope is threaded through the interiors of several of the limiting plates, and the elastic rope is of a closed loop structure.

[0015] The effects achieved by the above components are as follows: Rotating the threaded ring in the reverse direction, multiple limiting rings will simultaneously contract under the elastic force of the elastic rope, thus facilitating the work of reducing the size of the hollow holes.

[0016] Preferably, a connecting block is fixedly connected to the lower end of the limiting plate, and a bolt is threadedly connected inside the connecting block.

[0017] The effects achieved by the above components are as follows: Rotating the bolt inside the connecting block, the bolt will press against the surface of the threaded ring, enabling the adjustment of the position of a single limiting plate, and further facilitating the adjustment of the size of the hollow hole at a single position.

[0018] In summary:

[0019] In the present utility model, by providing the above structure, it facilitates the flexible adjustment of the size of the hollow holes above the hollow cover according to the usage requirements of the user, meets the usage requirements of different users, and improves the usage performance of the hollow cover to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0021] Figure 2 is a structural schematic diagram of another angle of the present utility model;

[0022] Figure 3 is a structural schematic diagram of the inner cylinder in the present utility model;

[0023] Figure 4 is in the present utility model Figure 3 is an enlarged view of part A.

[0024] Legend description: 1. Outer shell; 2. Inner cylinder; 3. Threaded ring; 4. Limiting plate; 5. Baffle plate; 6. Elastic rope; 7. Anti-slip groove; 8. Connecting block; 9. Bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Referring to Figures 1-4 as shown, the present utility model provides a technical solution: a hollow-shaped cover body, including an outer shell 1 and an inner cylinder 2, and the outer shell 1 and the inner cylinder 2 are fixedly connected.

[0026] Next, the overall specific settings and functions will be specifically described.

[0027] In this embodiment: A number of limiting plates 4 are slidably connected inside the outer shell 1. One end of the limiting plate 4 located between the outer shell 1 and the inner cylinder 2 is fixedly connected with a shielding plate 5, and the shielding plate 5 is of a sector structure. The shielding plates 5 between the outer shell 1 and the inner cylinder 2 will simultaneously open outward, thus facilitating the work of enlarging the hollow holes. The lower end of the limiting plate 4 is of a bent structure. The bent limiting plate 4 facilitates the pushing work of the limiting plate 4. The side wall of the outer shell 1 is provided with external threads, and a threaded ring 3 is threadedly connected to the surface of the external threads on the outer shell 1. During the process of twisting the threaded ring 3, relative movement will occur between the threaded ring 3 and the bent part at the lower end of the limiting plate 4. A number of anti-slip grooves 7 are provided on the side wall of the threaded ring 3. By rotating the threaded ring 3, the anti-slip grooves 7 on the threaded ring 3 increase the friction between the hand and the threaded ring 3, facilitating the twisting work of the threaded ring 3.

[0028] Specifically, an elastic cord 6 is passed through the inside of a number of limiting plates 4, and the elastic cord 6 is of a closed ring structure. By rotating the threaded ring 3 in the reverse direction, multiple limiting rings will be simultaneously contracted under the elastic force of the elastic cord 6, thus facilitating the work of reducing the size of the hollow holes. The lower end of the limiting plate 4 is fixedly connected with a connecting block 8, and a bolt 9 is threadedly connected inside the connecting block 8. By rotating the bolt 9 inside the connecting block 8, the bolt 9 will press against the surface of the threaded ring 3, enabling the adjustment of the position of a single limiting plate 4, and further facilitating the adjustment of the size of the hollow hole at a single position.

[0029] Working principle: When it is necessary to adjust the size of the holes on the hollow cover, rotate the threaded ring 3. The anti-slip grooves 7 on the threaded ring 3 increase the friction between the hand and the threaded ring 3, facilitating the twisting work of the threaded ring 3. During the process of twisting the threaded ring 3, relative movement will occur between the threaded ring 3 and the bent part at the lower end of the limiting plate 4, facilitating the work of simultaneously extruding and pushing multiple limiting plates 4 outward. At this time, the shielding plates 5 between the outer shell 1 and the inner cylinder 2 will simultaneously open outward, thus facilitating the work of enlarging the hollow holes. By rotating the threaded ring 3 in the reverse direction, multiple limiting rings will be simultaneously contracted under the elastic force of the elastic cord 6, thus facilitating the work of reducing the size of the hollow holes. By rotating the bolt 9 inside the connecting block 8, the bolt 9 will press against the surface of the threaded ring 3, enabling the adjustment of the position of a single limiting plate 4, and further facilitating the adjustment of the size of the hollow hole at a single position. This further improves the flexibility of adjusting the hollow holes. By setting the above structure, it facilitates the flexible adjustment of the size of the hollow holes above the hollow cover according to the user's usage requirements, meets the usage requirements of different users, and improves the usage performance of the hollow cover to a certain extent.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

Claims

1. A hollow cover body, comprising an outer shell (1) and an inner cylinder (2), characterized in that: The outer shell (1) and the inner cylinder (2) are fixedly connected. A plurality of limiting plates (4) are slidably connected inside the outer shell (1). One end of the limiting plate (4) located between the outer shell (1) and the inner cylinder (2) is fixedly connected with a shielding plate (5), and the shielding plate (5) is of a sector structure.

2. The hollow-shaped cover according to claim 1, characterized in that: The lower end of the limiting plate (4) is of a bent structure.

3. A hollow-shaped cover according to claim 1, wherein: The side wall of the outer shell (1) is provided with an external thread, and a threaded ring (3) is threadedly connected to the surface of the external thread on the outer shell (1).

4. The hollow-shaped cover according to claim 3, characterized in that: A plurality of anti-slip grooves (7) are provided on the side wall of the threaded ring (3).

5. A hollow-shaped cover according to claim 1, characterized in that: An elastic cord (6) is passed through the interiors of the plurality of limiting plates (4), and the elastic cord (6) is of a closed loop structure.

6. The hollow-shaped cover according to claim 1, wherein: The lower end of the limiting plate (4) is fixedly connected with a connecting block (8), and a bolt (9) is threadedly connected to the interior of the connecting block (8).

Images