Cover opening and closing structure of loudspeaker test box

Abstract

The utility model discloses a cover opening and closing structure of a loudspeaker test box, which comprises a base, a cover body, a first vertical driving device and a second vertical driving device, the base is a cavity with an opening at the upper end, and the cavity is used for placing a test device. The cover body is arranged at the position of the opening and is switched between the position where the opening is shielded and the position away from the opening, the first vertical driving devices are arranged on the two sides of the rear portion of the base, the upper ends of the first vertical driving devices are first driving ends, and the first driving ends are connected with the side wall of the rear portion of the cover body in a pivoted mode; the second vertical driving devices are arranged on the two sides of the middle of the base, the upper ends of the second vertical driving devices are second driving ends, and the second driving ends are connected with the side wall of the middle of the cover body in a pivoted mode. According to the design, the opening degree of the cover body is larger, meanwhile, a jig or a worker can conveniently place a product in the testing device, the working comfort degree is effectively improved, and the stability is good.

Description

Technical Field

[0001] The utility model relates to the field of speaker testing equipment, in particular to an opening and closing cover structure of a speaker testing box. Background Art

[0002] In the test of the speaker, a relatively closed environment is required to reduce external interference. The existing practice is generally to place the speaker in a fixture or directly place the speaker in the test slot of the test box to achieve acoustic testing of the speaker. However, the existing test box generally adopts a flipping structure to place the product in the test area, which has the following problems: 1. It adopts a direct flipping structure, so it needs to flip at an angle of nearly 90 degrees to reduce the interference of the placed product. Correspondingly, its flipping structure is also larger, and the flipping rate is also slower; 2. When it is not flipped to 90 degrees, its opening and closing degree is small, which affects the staff's placement of the product. Otherwise, the staff needs to bend over to place it, affecting the work comfort. Utility Model Content

[0003] The main purpose of the utility model is to propose an opening and closing cover structure of a speaker test box, aiming to improve the opening and closing structure of the cover of the speaker test box, which not only realizes rapid opening and closing, but also can make its opening and closing width meet predetermined requirements, thereby improving working comfort.

[0004] To achieve the above object, the utility model provides an opening and closing cover structure of a speaker test box, comprising:

[0005] A base, wherein the base is a cavity with an opening at the upper end, and the cavity is used to place the test device;

[0006] A cover body, the cover body is arranged at the position of the opening and switches between a position covering the opening and a position away from the opening;

[0007] A first vertical driving device, the first vertical driving device is arranged on both sides of the rear part of the base, the upper end of the first vertical driving device is a first driving end, the first driving end is pivotally connected to the side wall of the rear part of the cover body, and the first driving end can be switched between an ascending position and a descending position;

[0008] The second vertical drive device is arranged on both sides of the middle part of the base, the upper end of the second vertical drive device is the second drive end, the second drive end is pivotally connected to the side wall in the middle part of the cover body, and the second drive end can be switched between the rising and falling positions.

[0009] In actual opening of the cover, the first vertical driving device and the second vertical driving device drive the first driving end and the second driving end to rise simultaneously, and at this time, the lower end of the cover body rises as a whole and moves away from the base. When it rises to a predetermined angle, the first driving end stops working, and the second driving end continues to rise, so that the rear end of the cover body swings upward with the second driving end as a fulcrum;

[0010] This design allows the cover to open and close more widely, and at the same time makes it easier for the jig or staff to place the product in the test device, effectively improving work comfort and providing better stability. At the same time, in the actual closed state, the cover can be closed with the base without providing a closing locking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a half-section schematic diagram of the utility model;

[0012] Figure 2 This is a cross-sectional view of the utility model;

[0013] Figure 3 It is a three-dimensional schematic diagram of the utility model.

[0014] In the figure,

[0015] 1 is a base, 10 is an opening, 11 is a cover,

[0016] 21 is a positioning groove, 22 is a positioning convex block,

[0017] 3 is a first vertical driving device, 31 is a guide rail, 32 is a slider, 33 is a connecting plate,

[0018] 4 is a first driving device,

[0019] 5 is a second vertical driving device, 51 is a telescopic motor, 52 is a driving rod,

[0020] 61 is the first driving end, and 62 is the second driving end. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, if there are descriptions involving "first" or "second" etc. in the embodiments of the utility model, the descriptions of "first" or "second" etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0024] like Figures 1 to 3 As shown, an opening and closing cover structure of a speaker test box includes:

[0025] A base 1, wherein the base 1 is a cavity with an opening 10 at the upper end;

[0026] A cover 11, wherein the cover 11 is disposed at the position of the opening 10 and is switchable between a position covering the opening 10 and a position away from the opening 10;

[0027] A first vertical driving device 3, which is disposed on both sides of the rear portion of the base 1, wherein the upper end of the first vertical driving device 3 is a first driving end, which is pivotally connected to the side wall of the rear portion of the cover body 11, and the first driving end can be switched between an ascending position and a descending position;

[0028] The second vertical driving device 5 is arranged on both sides of the middle part of the base 1, and the upper end of the second vertical driving device 5 is the second driving end, which is pivotally connected to the side wall in the middle part of the cover body 11, and the second driving end can be switched between the rising and falling positions.

[0029] In actual opening of the cover, the first vertical drive device 3 and the second vertical drive device 5 drive the first drive end and the second drive end to rise simultaneously, and at this time, the lower end of the cover body 11 rises as a whole and moves away from the base 1. When it rises to a predetermined angle, the first drive end stops working, and the second drive end continues to rise, so that the rear end of the cover body 11 swings upward with the second drive end as a fulcrum;

[0030] This design allows the cover 11 to open and close more freely, and at the same time makes it easier for the jig or staff to place the product in the test device, effectively improving the working comfort and providing better stability. At the same time, in the actual closed state, the cover 11 can be closed without a closing locking device to achieve the closing between the cover 11 and the base 1.

[0031] Specifically, the first vertical driving device 3 includes a guide rail 31 arranged on the side wall of the base 1, a slider 32 slidably installed on the guide rail 31, and a first driving device 4 for driving the slider 32 to move, the slider 32 is provided with a connecting plate, the upper end of the connecting plate is provided with a first driving end, and the first driving end is pivotally connected to the side wall of the cover body 11.

[0032] In the embodiment of the utility model, the first driving device 4 includes a rotary motor arranged on the side wall of the base 1, a ball screw connected to the rotary motor, and a screw nut matched with the ball screw, and the screw nut is arranged on the connecting plate 33. The cooperation of the guide rail 31, the slider 32 and the screw pair is adopted to achieve the stable limit of the rear end of the cover body 11, which can be fixed at any predetermined position, and the screw pair has a locking function to make the first driving end swing as a fulcrum.

[0033] Specifically, the second vertical driving device 5 includes a telescopic motor 51 and a driving rod 52 slidably installed on the telescopic motor 51. The upper end of the driving end is provided with the second driving end, and the second driving end is pivotally connected to the side wall in the middle of the cover body 11, thereby realizing the swinging and rising of the cover body 11.

[0034] In the embodiment of the utility model, the telescopic motor 51 is obliquely arranged on the side wall of the base 1. In the actual design, when the first vertical driving device 3 and the second vertical driving device 5 move synchronously, the rising stroke of the cover body 11 is consistent, but due to the pivoting structure of the first driving end and the second driving end, there will be no interference.

[0035] Specifically, the first vertical driving devices 3 are provided with two groups and are symmetrically arranged.

[0036] In the embodiment of the utility model, the second vertical drive device 5 is provided with two groups and is symmetrically arranged. The arrangement of the two groups of drive structures can effectively ensure the safety of the opening and closing of the cover body 11, and even if one group of drive devices has problems, it will not affect the safety.

[0037] Specifically, the cavity is used to place a testing device.

[0038] In the embodiment of the utility model, a positioning groove 21 is concavely formed on the front wall of the base 1 , and a positioning protrusion 22 matching with the positioning groove 21 is formed on the cover body 11 .

[0039] Specifically, both sides of the positioning groove 21 are inclined surfaces, thereby facilitating opening and closing of the cover.

[0040] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. An opening and closing cover structure of a speaker test box, characterized in that: include: A base, wherein the base is a cavity with an opening at the upper end; A cover body, the cover body is arranged at the position of the opening and switches between a position covering the opening and a position away from the opening; A first vertical driving device, the first vertical driving device is arranged on both sides of the rear part of the base, the upper end of the first vertical driving device is a first driving end, the first driving end is pivotally connected to the side wall of the rear part of the cover body, and the first driving end can be switched between an ascending position and a descending position; The second vertical drive device is arranged on both sides of the middle part of the base, the upper end of the second vertical drive device is the second drive end, the second drive end is pivotally connected to the side wall in the middle part of the cover body, and the second drive end can be switched between the rising and falling positions.

2. The opening and closing cover structure of the speaker test box according to claim 1, characterized in that: The first vertical driving device includes a guide rail arranged on the side wall of the base, a slider slidably installed on the guide rail, and a first driving device for driving the slider to move. The slider is provided with a connecting plate, and the upper end of the connecting plate is provided with a first driving end, and the first driving end is pivotally connected to the side wall of the cover body.

3. The opening and closing cover structure of the speaker test box according to claim 2, characterized in that: The first driving device includes a rotating motor arranged on the side wall of the base, a ball screw connected to the rotating motor, and a screw nut matched with the ball screw, and the screw nut is arranged on the connecting plate.

4. The opening and closing cover structure of the speaker test box according to claim 1, characterized in that: The second vertical driving device includes a telescopic motor and a driving rod slidably mounted on the telescopic motor. The upper end of the driving end is provided with the second driving end, and the second driving end is pivotally connected to the side wall of the middle part of the cover body.

5. The opening and closing cover structure of the speaker test box according to claim 4, characterized in that: The telescopic motor is obliquely arranged on the side wall of the base.

6. The opening and closing cover structure of the speaker test box according to claim 1, characterized in that: The first vertical driving devices are provided with two groups and are symmetrically arranged.

7. The opening and closing cover structure of the speaker test box according to claim 1, characterized in that: The second vertical driving devices are provided with two groups and are symmetrically arranged.

8. The opening and closing cover structure of the speaker test box according to claim 1, characterized in that: The cavity is used for placing a testing device.

9. The opening and closing cover structure of the speaker test box according to claim 1, characterized in that: The front wall of the base is concavely provided with a positioning groove, and the cover body is provided with a positioning convex portion matched with the positioning groove.

10. The opening and closing cover structure of the speaker test box according to claim 9, characterized in that: Both sides of the positioning groove are inclined surfaces.

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