CN215066868U

CN215066868U - Width-adjustable long and narrow anechoic chamber

Info

Publication number: CN215066868U
Application number: CN202120748718.4U
Authority: CN
Inventors: 吴静平
Original assignee: Changzhou Zhongshuo Electronics Co ltd
Current assignee: Changzhou Zhongshuo Electronics Co ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-12-07
Anticipated expiration: 2031-04-13

Abstract

The utility model belongs to the technical field of the electromagnetic compatibility test, concretely relates to width adjustable long and narrow type anechoic chamber, including first box, second box, fixed connection connects the shell on the first box, the spread groove has been seted up to the lateral wall inside of second box, the inside sliding connection of spread groove connects the shell, first spacing groove has been seted up on the connection shell, first sliding tray has been seted up on the second box, the inside sliding connection of first sliding tray has the slider. The utility model discloses a be provided with the width of first box, connection shell, second box, adjustable anechoic chamber, through rotating the spacing nail of back-out, outwards stimulate first box, the connection shell is equipped with the wheel in the inside outside slip of second box through the bottom, can make first box slide more convenient, through rotating the first spacing inslot of screw in with the spacing nail, can fix the width of adjusting to the anechoic chamber.

Description

Width-adjustable long and narrow anechoic chamber

Technical Field

The utility model relates to an electromagnetic compatibility tests technical field, specifically is a width adjustable long and narrow type anechoic chamber.

Background

After the electromagnetic compatibility standards of products are implemented from europe, the radiation disturbance test of the products is an indispensable part of the electromagnetic compatibility test. And the anechoic chamber is a key test site in the electromagnetic compatibility test. The anechoic chamber is mainly used for measuring radiated radio disturbance (EMI) and radiation sensitivity (EMS), the test space of the existing anechoic chamber is limited, and the test points are fixed and can not meet certain requirements needed in the test, so the prior art needs to be improved.

Disclosure of Invention

An object of the utility model is to provide a width adjustable long and narrow anechoic chamber has solved the limited problem with the test point is fixed in current anechoic chamber test space.

In order to achieve the above object, the utility model provides a following technical scheme: a long and narrow type anechoic chamber with adjustable width comprises a first box body and a second box body, wherein a connecting shell is fixedly connected to the first box body, a connecting groove is formed in the side wall of the second box body, the connecting shell is slidably connected to the inside of the connecting groove, a first limiting groove is formed in the connecting shell, a first sliding groove is formed in the second box body, a sliding block is slidably connected to the inside of the first sliding groove, a connecting rod is fixedly connected to one end of the sliding block, a motor is fixedly connected to the connecting rod, the output end of the motor is rotatably connected with the connecting rod, the output end of the motor is connected with a connecting sleeve through a threaded nail, a first bevel gear is fixedly connected to one end of the connecting sleeve, a detecting instrument is fixedly connected to the first bevel gear, a second bevel gear is meshed to the first bevel gear, and a second sliding groove is formed in the second bevel gear, the inside fixedly connected with slide bar of second sliding tray, the inside sliding connection of second sliding tray has the mount, the slide bar run through the mount and with mount sliding connection, the outside of slide bar is provided with the spring, the third sliding tray has been seted up on the second box, the inside sliding connection of third sliding tray has the bracing piece, fixedly connected with catch bar on the connecting rod, the one end fixedly connected with bracing piece of catch bar, the bracing piece rotates with the second bevel gear to be connected, the equal fixedly connected with wheel carrier of lower extreme of first box and second box, it is connected with the wheel to rotate on the wheel carrier, there is the chamber door through threaded connection on the first box.

Preferably, the inside sliding connection of first spacing groove has the spacing nail, there is the spacing nail inside through threaded connection of second box.

Preferably, one end of the spring is fixedly connected with a fixing frame, and the other end of the spring is fixedly connected with a second bevel gear.

Preferably, the connecting rod is fixedly connected with a fixed sleeve, the inner part of the fixed sleeve is rotatably connected with a threaded rod, and the threaded rod penetrates through the second box body and is in threaded connection with the second box body.

Preferably, the threaded rod is provided with an annular groove, the inside of the annular groove is connected with a clamping nail in a sliding mode, and the inside of the fixed sleeve is connected with the clamping nail through threads.

Preferably, the lower end of the second box body is fixedly connected with a fixed rod, the inside of the fixed rod is connected with a limiting rod through threads, and the limiting rod is in contact with wheels.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a be provided with the width of first box, connection shell, second box, adjustable anechoic chamber, through rotating the spacing nail of back-out, outwards stimulate first box, the connection shell is equipped with the wheel in the inside outside slip of second box through the bottom, can make first box slide more convenient, through rotating the first spacing inslot of screw in with the spacing nail, can fix the width of adjusting to the anechoic chamber.

2. The utility model discloses a seted up first sliding tray and third sliding tray on the second box, it has the connecting rod to slide in the first sliding tray, makes the catch bar on the connecting rod drive the bracing piece and remove in the third sliding tray through rotating the threaded rod, can be used to the electric wave that the test instrument sent at different positions, is favorable to acquireing more data.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

fig. 2 is a front cross-sectional view of fig. 1 of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2 according to the present invention;

fig. 4 is an enlarged view of a portion B in fig. 2 according to the present invention.

In the figure: 1. a first case; 2. a connecting shell; 3. a second case; 4. connecting grooves; 5. a first limit groove; 6. a limit pin; 7. a connecting rod; 8. a slider; 9. a first sliding groove; 10. a motor; 11. connecting sleeves; 12. a first bevel gear; 13. a detector; 14. fixing a sleeve; 15. a threaded rod; 16. a ring groove; 17. a staple bolt; 18. a second bevel gear; 20. a second sliding groove; 21. a slide bar; 22. a fixed mount; 23. a spring; 24. a support bar; 25. a third sliding groove; 26. a push rod; 27. a wheel carrier; 28. a wheel; 29. fixing the rod; 30. a limiting rod; 31. and (4) a box door.

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.

Referring to fig. 1-4, a long and narrow type anechoic chamber with adjustable width comprises a first case 1 and a second case 3, wherein the first case 1 is fixedly connected with a housing 2, a connecting groove 4 is formed in the side wall of the second case 3, the connecting housing 2 is slidably connected with the inside of the connecting groove 4, a first limiting groove 5 is formed in the connecting housing 2, a first sliding groove 9 is formed in the second case 3, a sliding block 8 is slidably connected with the inside of the first sliding groove 9, one end of the sliding block 8 is fixedly connected with a connecting rod 7, a motor 10 is fixedly connected to the connecting rod 7, the output end of the motor 10 is rotatably connected with the connecting rod 7, the output end of the motor 10 is connected with a connecting sleeve 11 through a screw thread, one end of the connecting sleeve 11 is fixedly connected with a first bevel gear 12, a detecting instrument 13 is fixedly connected to the first bevel gear 12, a second bevel gear 18 is engaged with the first bevel gear 12, second sliding tray 20 has been seted up on second bevel gear 18, the inside fixedly connected with slide bar 21 of second sliding tray 20, the inside sliding connection of second sliding tray 20 has mount 22, slide bar 21 run through mount 22 and with mount 22 sliding connection, the outside of slide bar 21 is provided with spring 23, third sliding tray 25 has been seted up on the second box 3, the inside sliding connection of third sliding tray 25 has bracing piece 24, fixedly connected with catch bar 26 on the connecting rod 7, the one end fixedly connected with bracing piece 24 of catch bar 26, bracing piece 24 rotates with second bevel gear 18 and is connected, the equal fixedly connected with door wheel carrier 27 of lower extreme of first box 1 and second box 3, it is connected with wheel 28 to rotate on the wheel carrier 27, there is chamber door 31 through threaded connection on the first box 1.

Referring to fig. 2, the first limiting groove 5 is slidably connected with a limiting nail 6, and the second box 3 is threadedly connected with the limiting nail 6 for fixing the adjusted position of the connecting shell 2.

Referring to fig. 4, one end of the spring 23 is fixedly connected with a fixing frame 22, the other end of the spring 23 is fixedly connected with a second bevel gear 18, the fixing frame 22 is pulled backwards to place an instrument to be tested, and the spring 23 can drive the fixing frame 22 to clamp the instrument.

Referring to fig. 2, a fixing sleeve 14 is fixedly connected to the connecting rod 7, a threaded rod 15 is rotatably connected to the inside of the fixing sleeve 14, and the threaded rod 15 penetrates through the second box 3 and is in threaded connection with the second box 3, so that the threaded rod 15 and the second box 3 are driven to move forward when in threaded motion.

Referring to fig. 2, the threaded rod 15 is provided with a ring groove 16, the ring groove 16 is slidably connected with a staple 17, and the fixing sleeve 14 is connected with the staple 17 through a screw, so that the threaded rod 15 can drive the connecting rod 7 to move backwards when rotating counterclockwise.

Referring to fig. 2, a fixing rod 29 is fixedly connected to a lower end of the second housing 3, a limiting rod 30 is connected to an inner portion of the fixing rod 29 through a screw thread, and the limiting rod 30 contacts with the wheel 28 to fix the anechoic chamber and stop the rotation of the wheel 28.

The utility model discloses the concrete implementation process as follows: when the instrument is required to be tested, the fixing frame 22 on the second bevel gear 18 is pulled to slide outwards in the second sliding groove 20, the fixing frame 22 presses the spring 23, the instrument is placed into the fixing frame 22, slowly loosening the fixing frame 22, the spring 23 can drive the fixing frame 22 to clamp the instrument, so that the instrument cannot move when rotating, starting the motor 10, the motor 10 drives the first bevel gear 12 on the connecting sleeve 11 to rotate, the first bevel gear 12 drives the second bevel gear 18 to rotate, thereby driving the instrument in the fixed frame 22 to rotate, and the first bevel gear 12 drives the detecting instrument 13 to rotate, the detecting instrument 13 can be driven to rotate by the operation of the motor 10, the position of the detecting instrument 13 can be adjusted, therefore, the instrument can be tested from different positions, the motor 10 is a forward and reverse rotating motor, and the first bevel gear 12 cannot rotate for a whole circle, so that the detector 13 is prevented from colliding with the support rod 24; when a larger space is needed for testing, the first box body 1 can be pulled by rotating the screwing-out limiting nail 6, the connecting shell 2 slides outwards in the second box body 3, the limiting nail 6 is rotated and screwed into the first limiting groove 5, the limiting rod 30 and the fixing rod 29 are in threaded motion by rotating the limiting rod 30, and the wheel 28 can be fixed by enabling the limiting rod 30 to contact with the wheel 28; when the horizontal position of instrument is adjusted to needs, through rotating threaded rod 15, make threaded rod 15 and second box 3 take place the screw motion, threaded rod 15 can drive connecting rod 7 and slide, and catch bar 26 on the connecting rod 7 drives bracing piece 24 and slides forward in third sliding tray 25 can to make the instrument of test realize adjusting in the position in the darkroom, can obtain more experimental data.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a width adjustable long and narrow type anechoic chamber, includes first box (1), second box (3), its characterized in that: the connecting shell (2) is fixedly connected to the first box body (1), the connecting groove (4) is formed in the side wall of the second box body (3), the connecting shell (2) is connected to the connecting groove (4) in a sliding mode, the first limiting groove (5) is formed in the connecting shell (2), the first sliding groove (9) is formed in the second box body (3), the sliding block (8) is connected to the inside of the first sliding groove (9) in a sliding mode, the connecting rod (7) is fixedly connected to one end of the sliding block (8), the motor (10) is fixedly connected to the connecting rod (7), the output end of the motor (10) is rotatably connected with the connecting rod (7), the connecting sleeve (11) is connected to the output end of the motor (10) through a threaded nail, the first bevel gear (12) is fixedly connected to one end of the connecting sleeve (11), and the detecting instrument (13) is fixedly connected to the first bevel gear (12), a second bevel gear (18) is meshed with the first bevel gear (12), a second sliding groove (20) is formed in the second bevel gear (18), a sliding rod (21) is fixedly connected to the inside of the second sliding groove (20), a fixing frame (22) is connected to the inside of the second sliding groove (20) in a sliding manner, the sliding rod (21) penetrates through the fixing frame (22) and is connected with the fixing frame (22) in a sliding manner, a spring (23) is arranged on the outer side of the sliding rod (21), a third sliding groove (25) is formed in the second box body (3), a supporting rod (24) is connected to the inside of the third sliding groove (25) in a sliding manner, a push rod (26) is fixedly connected to the connecting rod (7), a supporting rod (24) is fixedly connected to one end of the push rod (26), and the supporting rod (24) is rotatably connected with the second bevel gear (18), the lower ends of the first box body (1) and the second box body (3) are fixedly connected with a wheel carrier (27), the wheel carrier (27) is connected with wheels (28) in a rotating mode, and a box door (31) is connected to the first box body (1) through threads.

2. An elongated anechoic chamber with adjustable width as claimed in claim 1, wherein: the inside sliding connection of first spacing groove (5) has spacing nail (6), there is spacing nail (6) inside through threaded connection of second box (3).

3. An elongated anechoic chamber with adjustable width as claimed in claim 1, wherein: one end of the spring (23) is fixedly connected with a fixing frame (22), and the other end of the spring (23) is fixedly connected with a second bevel gear (18).

4. An elongated anechoic chamber with adjustable width as claimed in claim 1, wherein: the connecting rod (7) is fixedly connected with a fixing sleeve (14), the inner part of the fixing sleeve (14) is rotatably connected with a threaded rod (15), and the threaded rod (15) penetrates through the second box body (3) and is in threaded connection with the second box body (3).

5. An elongated anechoic chamber with adjustable width as claimed in claim 4, wherein: annular groove (16) have been seted up on threaded rod (15), the inside sliding connection of annular groove (16) has bail (17), there is bail (17) inside of fixed cover (14) through threaded connection.

6. An elongated anechoic chamber with adjustable width as claimed in claim 1, wherein: the lower extreme fixedly connected with dead lever (29) of second box (3), there is gag lever post (30) inside through threaded connection of dead lever (29), gag lever post (30) and wheel (28) contact.