CN210037910U

CN210037910U - Electromagnetic shielding box

Info

Publication number: CN210037910U
Application number: CN201920006451.4U
Authority: CN
Inventors: 程明; 诸珍; 罗军
Original assignee: Shanghai Ultimate Power Communications Technology Co Ltd
Current assignee: Shanghai Ultimate Power Communications Technology Co Ltd
Priority date: 2019-01-03
Filing date: 2019-01-03
Publication date: 2020-02-07
Anticipated expiration: 2029-01-03

Abstract

The utility model relates to a transportation storage device technical field provides an electromagnetic shielding box. The electromagnetic shielding box comprises an electromagnetic shielding box body and a supporting frame, wherein the supporting frame is arranged in the electromagnetic shielding box body in a drawing mode, and a hanging plate used for hanging suspension type equipment is arranged on the supporting frame. The utility model discloses simple structure, simple operation, only need take the support frame out before the test with suspension type equipment and the whole vertical suspension of test annex can on the link plate. Therefore, the reliability of the actual use state of the suspension type equipment, the heat dissipation effect and the test result can be improved, the collision between the suspension type equipment and the electromagnetic shielding box body in the taking and placing process can be avoided, the sliding risk of the suspension type equipment in the test process is reduced, and the safety is improved.

Description

Electromagnetic shielding box

Technical Field

The utility model relates to a transportation storage device technical field, concretely relates to electromagnetic shielding box.

Background

Currently, when the test accessory 2 is mounted on the suspension device 1 for testing, as shown in fig. 1, the test items include antenna power tests in addition to some conventional test items. Because the existing electromagnetic shielding box only comprises a box body and a box cover, the existing electromagnetic shielding box cannot directly simulate the actual use state of the suspension type equipment 1 to vertically suspend the suspension type equipment in the box body in the testing process. As shown in fig. 2 and 3, most suspended equipment 1, such as lamp post station equipment, is generally cylindrical and has no reliable force application point, and can be placed only by the suspended back frame position 1-1, while the suspended back frame position 1-1 only occupies half of the body of the suspended equipment 1. If the suspension type equipment 1 is transversely placed in the electromagnetic shielding box by depending on the suspension back frame position 1-1, the safety is low, the actual use state of the suspension type equipment 1 cannot be simulated, the heat dissipation effect of the suspension type equipment 1 is influenced, and the reliability of a test result is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, can realize the electromagnetic shield case of the vertical installation of suspension type equipment to simulate suspension type equipment's in-service use state, improve the reliability of test result.

In order to achieve the above object, the utility model provides an electromagnetic shielding case, this electromagnetic shielding case include electromagnetic shielding case body and support frame, but the support frame pull sets up electromagnetic shielding case is originally internal, be equipped with the link plate that is used for hanging suspension type equipment on the support frame.

The left side and the right side of the inner wall of the electromagnetic shielding box body are provided with sliding rails extending along the front-back direction of the electromagnetic shielding box body, sliding blocks in one-to-one correspondence to the sliding rails are arranged on the supporting frame, and the sliding blocks are slidably embedded in the corresponding sliding rails.

The slide rail, the slide block and/or the hanging plate are made of galvanized steel plates.

The hanging plate is arranged on the support frame, and the quick clamp is arranged on the hanging plate and is used for abutting against the hanging device.

Wherein, the quick clamp is a vertical quick clamp.

The electromagnetic shielding box body comprises a box cover, a box body and a box frame, wherein the front side of the box body is provided with an opening, and the box cover is rotatably connected to the box body and can be opened and closed on the opening; the box body is internally provided with the box frame for supporting the box body.

The box cover is connected with the box body in a rotating mode through a hinge, a torsion spring is sleeved on a rotating shaft of the hinge and used for driving the box cover to be closed to the opening.

Wherein, the support frame is including connecting horizontal pole, middle frame and two relative side frame framves that set up, two the rear end of side frame passes through connect the horizontal pole and connect, two the middle part of side frame passes through middle frame connects, be equipped with on the middle frame the link plate.

The two ends of the connecting cross rod are respectively connected with the corresponding side frames through three-way joints, and the two sides of the middle frame are respectively connected with the corresponding side frames through four-way joints.

The three-way joint and the four-way joint are made of chromium-plated metal, and the side frames, the middle frame and the connecting cross rod are all made of plastic-coated steel pipes.

The utility model discloses simple structure, simple operation, only need take the support frame out before the test with suspension type equipment and the whole vertical suspension of test annex can on the link plate. Therefore, the reliability of the actual use state of the suspension type equipment, the heat dissipation effect and the test result can be improved, the collision between the suspension type equipment and the electromagnetic shielding box body in the taking and placing process can be avoided, the sliding risk of the suspension type equipment in the test process is reduced, and the safety is improved.

Drawings

FIG. 1 is a schematic diagram of a prior art electromagnetic shielding box;

FIG. 2 is a side view of a prior art suspension device;

FIG. 3 is a front view of a prior art suspension device;

fig. 4 is a schematic structural diagram of an electromagnetic shielding box in an embodiment of the present invention;

FIG. 5 is a schematic structural view of a hanging plate in the embodiment of the present invention;

fig. 6 is a schematic view of the installation of a suspension device according to an embodiment of the invention;

FIG. 7 is a schematic structural view of the slide rail and the slide block when the support frame is not drawn out according to the embodiment of the present invention;

FIG. 8 is a schematic structural view of the slide rail and the slide block when the support frame is pulled out according to the embodiment of the present invention;

fig. 9 is a schematic structural view of the quick clamp according to the embodiment of the present invention;

fig. 10 is a schematic structural view of the supporting frame in the embodiment of the present invention.

Reference numerals:

1. a suspension device; 1-1, hanging a back frame; 2. testing the accessory; 3-1, a box body;

3-2, a box cover; 3-3, a box frame; 4. a support frame; 4-1, side frame;

4-2, connecting a cross bar; 4-3, a middle frame; 5. hanging the plate; 6. a slide rail; 7. a slider;

8-1, a first connecting rod; 8-2, a second connecting rod; 8-3, a frame; 8-4, a pressure lever.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly described below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the utility model, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the utility model.

In the description of the present invention, unless otherwise specified, the terms "top", "bottom", "upper", "lower", 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 system or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

It is to be understood that, unless otherwise expressly stated or limited, the term "coupled" is used in a generic sense as defined herein, e.g., fixedly attached or removably attached or integrally attached; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the utility model can be understood in specific cases to those of ordinary skill in the art.

With reference to fig. 4 to 6, an embodiment of the present invention provides an electromagnetic shielding box, which includes an electromagnetic shielding box body and a supporting frame 4, wherein the supporting frame 4 is drawably disposed in the electromagnetic shielding box body, and a hanging plate 5 for hanging the suspension type device 1 is disposed on the supporting frame 4.

Before testing: firstly, mounting a test accessory 2 on an accessory mounting position of the suspension type equipment 1; then, the support frame 4 is drawn out of the electromagnetic shielding box body; secondly, the suspension equipment 1 and the test accessory 2 are integrally and vertically suspended on the hanging plate 5 by using a suspension back frame of the suspension equipment 1; and finally, pushing the support frame 4 into the electromagnetic shielding box body again for testing.

Therefore, the electromagnetic shielding box is simple in structure and convenient to operate, and the whole suspension type equipment 1 and the whole test accessory 2 are vertically suspended on the hanging plate 5 only by drawing out the supporting frame 4 before testing. Therefore, the reliability of the actual use state of the suspension type equipment 1 can be simulated, the heat dissipation effect and the test result can be improved, the collision between the suspension type equipment 1 and the electromagnetic shielding box body in the taking and placing process can be avoided, the risk of the suspension type equipment 1 sliding in the test process is reduced, and the safety is improved.

Preferably, as shown in fig. 7 and 8, the left and right sides of the inner wall of the electromagnetic shielding box body are provided with slide rails 6 extending along the front-back direction, i.e. the width direction, of the electromagnetic shielding box body, the supporting frame 4 is provided with slide blocks 7 corresponding to the slide rails 6 one by one, and the slide blocks 7 are slidably embedded in the corresponding slide rails 6. The material of the slide rail 6, the slide block 7 and/or the hanging plate 5 can be but is not limited to galvanized steel plate. For example, the hanging plate 5 may be bent from a galvanized steel plate having a thickness of 2 mm.

Further, as shown in fig. 9, in order to avoid the suspension type device 1 from shaking during the drawing process of the support frame 4, the support frame 4 is further provided with a quick clamp which is arranged opposite to the hanging plate 5, and the quick clamp is used for abutting against the suspension type device 1. Wherein, the quick clamp preferably adopts vertical quick clamp. Before testing, the whole of the suspension type equipment 1 and the test accessory 2 is vertically suspended on the hanging plate 5, and then the first connecting rod 8-1 of the quick clamp can be rotated to drive the second connecting rod 8-2 to synchronously rotate. When the three points of the hinge point of the first connecting rod 8-1 and the frame 8-3, the hinge point of the connecting rod and the first connecting rod 8-1 and the hinge point of the connecting rod and the second connecting rod 8-2 are collinear, the pressure head of the pressure rod 8-4 is just propped against the testing accessory 2. At this time, the quick clamp is in a locked state, that is, the compression bar 8-4 can still abut against the test accessory 2 no matter how much reaction force is applied to the compression bar 8-4 by the test accessory 2. Thus, under the combined constraint of the hanging plate 5 and the quick clamp, the suspension type equipment 1 is firmly and vertically fixed on the supporting frame 4. It should be noted that the quick clamp is the prior art, so the structure and principle of the quick clamp are not described in detail in this embodiment, and the length of the pressing rod 8-4 can be adjusted according to the size of the test accessory 2 in actual use.

Preferably, the electromagnetic shielding box body comprises a box body 3-1, a box cover 3-2 and a box frame 3-3, the front side of the box body 3-1 is open, and the box cover 3-2 is rotatably connected to the box body 3-1 and can be opened and closed on the open; a box frame 3-3 for supporting the box body 3-1 is arranged in the box body 3-1. Further, the box cover 3-2 is rotatably connected with the box body 3-1 through a hinge, a rotating shaft of the hinge is sleeved with a torsion spring, and the torsion spring is used for driving the box cover 3-2 to be closed to the opening.

Preferably, as shown in fig. 10, the supporting frame 4 includes a connecting cross bar 4-2, a middle frame 4-3 and two side frames 4-1 arranged oppositely, the rear ends of the two side frames 4-1 are connected by the connecting cross bar 4-2, the middle parts of the two side frames 4-1 are connected by the middle frame 4-3, and the middle frame 4-3 is provided with a hanging plate 5. Wherein, two ends of the connecting cross rod 4-2 are respectively connected with the corresponding side frames 4-1 through three-way joints, and two sides of the middle frame 4-3 are respectively connected with the corresponding side frames 4-1 through four-way joints. Specifically, the side frame 4-1 and the middle frame 4-3 both comprise two vertical bars and two horizontal bars, the top ends of the two vertical bars are connected through one horizontal bar, and the bottom ends of the two vertical bars are connected through the other horizontal bar, namely the two vertical bars and the two horizontal bars are enclosed together to form a rectangular frame; each horizontal rod of the side frame 4-1 comprises a first short rod and a second short rod which are coaxially arranged, the front end of each first short rod is connected with a vertical rod on the front side of the side frame 4-1, the rear end of each first short rod is connected with the front end of each second short rod, the vertical rod of the middle frame 4-3 and the horizontal rod of the middle frame 4-3 through a four-way joint, and the rear end of each second short rod is connected with a connecting transverse rod 4-2 and the vertical rod on the rear side of the side frame 4-1 through a three-way valve. The middle frame 4-3 also comprises a supporting cross rod, the middle parts of two vertical rods of the middle frame 4-3 are connected through the supporting cross rod, and a hanging plate 5 is arranged on the supporting cross rod.

Furthermore, the three-way joint and the four-way joint are made of chrome-plated metal, and the side frame 4-1, the middle frame 4-3 and the connecting cross rod 4-2 are all made of plastic-coated steel pipes. Wherein, the plastic-coated steel pipe can adopt a seamless steel pipe with the surface plated with a 1mm antistatic coating and the diameter of 26 mm.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides an electromagnetic shielding case, its characterized in that, includes electromagnetic shielding case body and support frame, the left and right sides of electromagnetic shielding case body inner wall all is equipped with the edge the slide rail that the fore-and-aft direction of electromagnetic shielding case body extends, be equipped with on the support frame with the slider of slide rail one-to-one, slider slidable inlays to be established correspondingly in the slide rail, but the support frame pull sets up electromagnetic shielding case is originally internal, be equipped with the link plate that is used for hanging suspension type equipment on the support frame.

2. The electromagnetic shielding box according to claim 1, wherein the slide rail, the slide block and/or the hanging plate are made of galvanized steel.

3. The electromagnetic shielding box of claim 1, wherein the supporting frame is further provided with a quick clamp arranged opposite to the hanging plate, and the quick clamp is used for abutting against the suspension type equipment.

4. The electromagnetically shielded enclosure of claim 3, wherein the quick clip is a vertical quick clip.

5. The electromagnetic shielding box of claim 1, wherein the electromagnetic shielding box body comprises a box cover, a box body and a box frame, the front side of the box body is open, and the box cover is rotatably connected to the box body and can be opened and closed on the open; the box body is internally provided with the box frame for supporting the box body.

6. The electromagnetic shielding box of claim 5, wherein the box cover is rotatably connected to the box body through a hinge, and a rotating shaft of the hinge is sleeved with a torsion spring for driving the box cover to close the opening.

7. The electromagnetic shielding box of any one of claims 1 to 6, wherein the supporting frame comprises a connecting cross bar, a middle frame and two oppositely arranged side frames, the rear ends of the two side frames are connected through the connecting cross bar, the middle parts of the two side frames are connected through the middle frame, and the hanging plate is arranged on the middle frame.

8. The electromagnetic shielding box according to claim 7, wherein both ends of the connecting cross bar are connected to the corresponding side frames through three-way joints, respectively, and both sides of the middle frame are connected to the corresponding side frames through four-way joints, respectively.

9. The electromagnetic shielding box according to claim 8, wherein the three-way joint and the four-way joint are made of chrome-plated metal, and the side frames, the middle frame and the connecting cross bar are made of plastic-coated steel pipes.