CN210182602U

CN210182602U - Ground interface box for anechoic chamber

Info

Publication number: CN210182602U
Application number: CN201921380213.6U
Authority: CN
Inventors: Jingping Wu; 吴静平
Original assignee: CHANGZHOU ZHONGSHUO ELECTRONICS Co Ltd
Current assignee: CHANGZHOU ZHONGSHUO ELECTRONICS Co Ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-03-24
Anticipated expiration: 2029-08-23

Abstract

The utility model discloses a ground interface box for anechoic chamber, install in the positive a plurality of wire joints of interface box body including interface box body and interval, the below that a plurality of wires connect is equipped with the pivot, the both ends fixed connection of pivot is connected with the fixed block, the outer wall symmetry movable sleeve of pivot is equipped with two axle sleeves, the equal fixedly connected with connecting block of outer wall of two axle sleeves, the one end fixedly connected with dust guard of two connecting blocks, the outer wall of pivot just is located and overlaps between two axle sleeves and is equipped with the torsional spring, and the both ends of torsional spring respectively with one side fixed joint of two axle sleeves. The utility model discloses utilize pivot, fixed block, axle sleeve, connecting block, dust guard and the torsional spring that the wire connects below setting to seal the port that the wire connects when the wire connects not connecting cable, prevent that the dust from entering into the wire and connecting inside, prevent the resistance increase between wire joint and the cable, improved power transmission efficiency between interface box and the cable.

Description

Ground interface box for anechoic chamber

Technical Field

The utility model relates to an interface box field, in particular to a ground interface case for anechoic chamber.

Background

The anechoic chamber is a closed shielding chamber which is mainly used for simulating open fields and is simultaneously used for radiated radio disturbance (EMI) and radiation sensitivity (EMS) measurement. The size of the anechoic chamber and the selection of the radio frequency wave-absorbing material are mainly determined by the dimension of the external line of a tested device (EUT) and the test requirements.

Traditional anechoic chamber all can set up the interface box on ground for the wiring of indoor conductor is connected, and the wire connection of current interface box all exposes in the external world, and like this after long-time the use, the dust in the air enters into wire connection's inside easily, thereby increases the resistance between cable and the wire connection, appears the short circuit phenomenon easily, thereby reduces the power transmission efficiency between interface box and the cable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ground interface case for anechoic chamber to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a ground interface case for anechoic chamber, includes that interface box body and interval install in the positive a plurality of wire of interface box body and connect, a plurality of the below that the wire connects is equipped with the pivot, the both ends fixedly connected with fixed block of pivot, just the positive fixed connection of fixed block and interface box body, the outer wall symmetry movable sleeve of pivot is equipped with two axle sleeves, two the equal fixedly connected with connecting block of outer wall of axle sleeve, two the one end fixedly connected with dust guard of connecting block, the outer wall of pivot just is located and overlaps between two axle sleeves and is equipped with the torsional spring, just the both ends of torsional spring respectively with one side fixed joint of two axle sleeves.

Preferably, the middle part of the top end of the dust guard is fixedly connected with an insulating rubber pad, and the diameter of the insulating rubber pad is larger than or equal to that of the wire joint.

Preferably, the shaft sleeve and the connecting block are fixed by welding.

Preferably, the equal fixedly connected with mounting of tip of interface box body both sides, just two screw holes have been seted up to the positive avris symmetry of mounting.

Preferably, a plurality of strip-shaped heat dissipation windows are symmetrically arranged on two sides of the interface box body.

Preferably, a plurality of elastic cushion pads are fixedly connected to the top end of the interface box body at intervals.

The utility model discloses a technological effect and advantage:

the utility model discloses utilize pivot, fixed block, axle sleeve, connecting block, dust guard and the torsional spring that the wire connects below setting to seal the port that the wire connects when the wire connects not connecting cable, prevent that the dust from entering into the wire and connecting inside, prevent the resistance increase between wire joint and the cable, improved power transmission efficiency between interface box and the cable.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the present invention.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1 according to the present invention.

Fig. 3 is a schematic view of the three-dimensional structure of the rotating shaft of the present invention.

In the figure: 1. an interface box body; 2. a wire connection; 3. a rotating shaft; 4. a fixed block; 5. a shaft sleeve; 6. Connecting blocks; 7. a dust-proof plate; 8. a torsion spring; 9. an insulating rubber pad; 10. a fixing member; 11. a threaded hole; 12. a strip-shaped heat dissipation window; 13. an elastic buffer cushion.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a ground interface box for anechoic chamber as shown in figures 1-3, which comprises an interface box body 1 and a plurality of wire connectors 2 arranged on the front surface of the interface box body 1 at intervals, a rotating shaft 3 is arranged below the plurality of wire connectors 2, two ends of the rotating shaft 3 are fixedly connected with fixed blocks 4, the fixed blocks 4 are fixedly connected with the front surface of the interface box body 1, a fixing function is performed on the rotating shaft 3, the rotating shaft 3 and the interface box body 1 are kept relatively fixed, two shaft sleeves 5 are symmetrically and movably sleeved on the outer wall of the rotating shaft 3, a connecting and rotating function is performed, a dust guard 7 can rotate on the rotating shaft 3, connecting blocks 6 are fixedly connected on the outer walls of the two shaft sleeves 5, the shaft sleeves 5 and the connecting blocks 6 are fixed by welding, the fixing strength among the dust guard 7, the connecting blocks 6 and the shaft sleeves 5 is improved, one end of the two connecting blocks 6 is fixedly connected, the initial position of dust guard 7 is the port laminating with wire joint 2, and the outer wall of pivot 3 just is located and overlaps between two axle sleeves 5 and be equipped with

torsional spring

8, and 8 both ends of torsional spring respectively with the fixed joint in one side of two axle sleeves 5, utilize torsional spring 8 to produce the turning force that provides after the deformation and drive 5 antiport of axle sleeve to initial position to the dust guard 7 of being convenient for seals wire joint 2's port automatically.

The middle part at the top end of the dust guard 7 is fixedly connected with an insulating rubber pad 9, and the diameter of the insulating rubber pad 9 is larger than or equal to that of the wire joint 2, so that the effects of insulation and increasing the sealing performance between the dust guard 7 and the wire joint 2 are achieved.

The equal fixedly connected with mounting 10 of tip of 1 both sides of interface case body, and two screw holes 11 have been seted up to the positive avris symmetry of mounting 10, the interface case body 1 of being convenient for is fixed with the wall body, a plurality of bar heat dissipation windows 12 have been seted up to the bilateral symmetry of interface case body 1, the inside heat dissipation of interface case body 1 of being convenient for, a plurality of elastic buffer pads 13 of top interval fixedly connected with of interface case body 1, play the effect of a shock attenuation buffering between wall body and the interface case body 1, thereby prolong the life of interface case body 1.

This practical theory of operation: when the wire connector 2 on the interface box body 1 is not connected with a cable, the dust-proof plate 7 is kept in a state of being attached to the wire connector 2, so that the port of the wire connector 2 is in a closed state, when the cable is required to be inserted into the wire connector 2, the end part of the cable is pressed downwards in an inclined manner to enable the dust-proof plate 7 to drive the shaft sleeve 5 to rotate on the rotating shaft 3 through the connecting block 6, when the dust-proof plate 7 rotates to a horizontal position after rotating 90 degrees from a vertical position, the torsional spring 8 is elastically deformed at the moment to provide a reverse rotating force for the dust-proof plate 7, then the wiring port of the cable is inserted into the wire connector 2, at the moment, as the cable and the wire connector 2 are kept relatively fixed, the cable plays a limiting role on the dust-proof plate 7, the limitation on the position of the dust-proof plate 7 is kept, and after the cable is artificially pulled out, the dust-proof plate 7 loses the limitation of the cable, make axle sleeve 5 provide connecting block 6 and drive dust guard 7 and revolve to vertical position, make insulating rubber pad 9 on the dust guard 7 and wire joint 2's port sealing laminating to the realization is automatic seals wire joint 2's port, prevents that the dust from getting into.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a ground interface case for anechoic chamber, includes that interface case body (1) and interval install in the positive a plurality of wire connectors (2) of interface case body (1), its characterized in that: it is a plurality of the below of wire joint (2) is equipped with pivot (3), both ends fixedly connected with fixed block (4) of pivot (3), just fixed block (4) and the positive fixed connection of interface box body (1), the outer wall symmetry movable sleeve of pivot (3) is equipped with two axle sleeves (5), two the equal fixedly connected with connecting block (6) of outer wall of axle sleeve (5), two the one end fixedly connected with dust guard (7) of connecting block (6), the outer wall of pivot (3) just is located and overlaps between two axle sleeves (5) and is equipped with torsional spring (8), just the both ends of torsional spring (8) respectively with one side fixed joint of two axle sleeves (5).

2. A floor interface box for an anechoic chamber according to claim 1, wherein: the middle part of the top end of the dust guard (7) is fixedly connected with an insulating rubber pad (9), and the diameter of the insulating rubber pad (9) is larger than or equal to that of the wire joint (2).

3. A floor interface box for an anechoic chamber according to claim 1, wherein: the shaft sleeve (5) and the connecting block (6) are fixed through welding.

4. A floor interface box for an anechoic chamber according to claim 1, wherein: the equal fixedly connected with mounting (10) of tip of interface box body (1) both sides, just two screw holes (11) have been seted up to the positive avris symmetry of mounting (10).

5. A floor interface box for an anechoic chamber according to claim 1, wherein: a plurality of strip-shaped heat dissipation windows (12) are symmetrically arranged on two sides of the interface box body (1).

6. A floor interface box for an anechoic chamber according to claim 1, wherein: the top end of the interface box body (1) is fixedly connected with a plurality of elastic cushion pads (13) at intervals.