CN214901945U

CN214901945U - Shielding device for classroom

Info

Publication number: CN214901945U
Application number: CN202120808194.3U
Authority: CN
Inventors: 张荷丽
Original assignee: HEFEI CHUANGZHAO ELECTRONIC TECHNOLOGY CO LTD
Current assignee: HEFEI CHUANGZHAO ELECTRONIC TECHNOLOGY CO LTD
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-11-26
Anticipated expiration: 2031-04-20

Abstract

The utility model discloses a shielding device for classroom, including shielding device main part 1, shielding device main part 1 inside be equipped with cooling fan 2, 2 lower parts of cooling fan install on square mounting panel, four turning below of mounting panel be equipped with bearing structure 3, bearing structure 3 constitute by base 4, movable rod 5 and spring 6, the inside cavity of base 4 become "U" shape, spring 6 really be in the inside cavity of base 4 on, 5 joints of movable rod on spring 6, 5 upper ends of movable rod fix the below at the mounting panel, 5 bottoms of movable rod and the inside hollow bottom of base 4 have certain clearance, the utility model discloses a set up bearing structure, reduce the big problem of the inside heat dissipation device cooling fan noise of shielding device among the prior art.

Description

Shielding device for classroom

Technical Field

The utility model relates to a shield technical field especially relates to a shield for classroom.

Background

The wireless signal shielding device is also called as a cut-off device, a blocker and the like, and is mainly used for preventing a mobile phone (computer) from carrying out illegal communication, namely activities such as cheating, disclosure and the like, but the internal parts of the existing shielding device have compact structures, especially the internal parts of some high-power shielding devices, such as the shielding device used for examinations in a large-scale ladder classroom, because of normal use, a heat dissipation component is required to be added for solving the problems, generally, cooling fans and the like are adopted for solving the problems, because the cooling fans rotate, noise with different degrees can be brought, the noise can influence the normal answer of the examinations at most, and in order to reduce the technical problem of the noise, a new technical scheme is required for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can reduce the shield of noise in order to reduce the big problem of the inside radiator cooling fan noise of shield among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the shielding device for the classroom comprises a shielding device main body and is characterized in that a cooling fan is arranged in the shielding device main body, the lower portion of the cooling fan is installed on a square support plate, supporting structures are arranged below four corners of the support plate and comprise a base, a movable rod and a spring, the inside of the base is hollow into a U shape, the spring is actually hollow in the base, and the movable rod is clamped on the spring.

Preferably, the upper end of the movable rod is fixed below the support plate.

Preferably, a certain gap is formed between the bottom of the movable rod and the hollow bottom in the base.

The utility model discloses in, when the shielding ware during operation, cooling fan starts, the noise mainly is that the fan during operation vibration produces, for this reason, install four bearing structure on cooling fan lower part mounting panel, this bearing structure is by the base, movable rod and spring are constituteed, when cooling fan work drives the mounting panel vibration, the movable rod can be supported by the spring, reduce the vibration frequency, reduce the noise, prevent that the movable rod from contacting the base better, lead to the vibration transmission, there is certain clearance bottom the movable rod and the inside hollow bottom of base.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the cooling fan shown in FIG. 1;

fig. 3 is a schematic view of the support structure of fig. 2.

In the figure: 1 a shield body, 2 a cooling fan, 3 a support structure, 4 a base, 5 a movable rod and 6 a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a shielding device for a classroom comprises a shielding device main body 1, and is characterized in that a cooling fan 2 is arranged inside the shielding device main body 1, the lower portion of the cooling fan 2 is installed on a square support plate, support structures 3 are arranged below four corners of the support plate, each support structure 3 comprises a base 4, a movable rod 5 and a spring 6, the base 4 is hollow and is in a U shape, the spring 6 is actually hollow inside the base 4, the movable rods 5 are clamped on the springs 6, the upper ends of the movable rods 5 are fixed below the support plate, and a certain gap is formed between the bottoms of the movable rods 5 and the hollow bottom inside the base 4.

The utility model discloses in, in order to reduce the noise that 2 vibrations of cooling fan produced, set up 4 bearing structure 3 on the mounting panel of 2 below cooling fan, this bearing structure 3 comprises base 4, movable rod 5 and spring 6, and when 2 work drive mounting panels of cooling fan vibrate, movable rod 5 can be supported by spring 6, unloads partial vibration by spring 6, reduces the vibration frequency, noise abatement.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a shielding device for classroom, includes shielding device main part (1), its characterized in that, shielding device main part (1) inside be equipped with cooling fan (2), cooling fan (2) lower part install on square mounting panel, four turning below of mounting panel be equipped with bearing structure (3), bearing structure (3) constitute by base (4), movable rod (5) and spring (6), inside cavity one-tenth "U" shape of base (4), spring (6) really on base (4) inside cavity, movable rod (5) joint on spring (6).

2. A shielding device for classroom use as defined in claim 1, wherein said movable rod (5) is fixed at its upper end below the support plate.

3. A shielding device for classroom use as claimed in claim 1, wherein the bottom of the movable rod (5) is spaced from the hollow bottom of the base (4).