A mute test box for implementing continuous testing

Abstract

This invention discloses a silent testing chamber for continuous testing, comprising a double-layered chamber and a base. Openings are located at the bottom of both sides of the double-layered chamber, and support platforms are located at the bottom of the openings on both sides of the double-layered chamber. A movable plate is located inside the double-layered chamber, and support mechanisms are located on both sides of the movable plate. Each support mechanism consists of a support compartment and two double-layered closed plates. One of the double-layered closed plates is fixedly connected to the movable plate, and the other double-layered closed plate has a pull handle in its center. By providing two support mechanisms, this invention allows for silent testing of products in one support compartment while simultaneously removing and placing products to be tested from the other support compartment, thus offsetting the time spent on product placement and retrieval. This enables continuous silent testing of products and effectively improves the testing speed.

Description

Technical Field

[0001] This invention belongs to the technical field of silent test chambers, and specifically relates to a silent test chamber for continuous testing. Background Technology

[0002] A noise level test chamber is a device used to meet the low-noise environment requirements for audio frequency testing. It is an isolated cavity made of sound-absorbing, damping, sound-insulating, and vibration-damping materials, providing a noise testing environment far below ambient noise levels. Unlike a soundproof room, a noise level test chamber is smaller, lighter, has better sound insulation, is easy to move, and is suitable for various applications.

[0003] When conducting tests, testers need to repeatedly open and close the chamber door to place and retrieve the test products. Placing and retrieving products takes up a lot of work time, making it impossible to conduct continuous testing and thus hindering the speed of silent testing.

[0004] Therefore, it is necessary to invent a silent test chamber that enables continuous testing to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a silent test chamber for continuous testing, thereby resolving the issues raised in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a silent test chamber for continuous testing, comprising a double-layer chamber and a base, wherein openings are provided at the bottom of both sides of the double-layer chamber, and a support platform is provided at the bottom of the openings on both sides of the double-layer chamber, and a movable plate is provided inside the double-layer chamber, with a support mechanism provided on both sides of the movable plate;

[0007] The bearing mechanism consists of a bearing chamber and two double-layer enclosed plates. One of the double-layer enclosed plates is fixedly connected to a movable plate, and the other double-layer enclosed plate has a pull handle in the middle.

[0008] Furthermore, the movable plate is provided with sliding rails around its perimeter, and both ends of the four sliding rails are fixedly connected to the inner wall of the double-layer box. A movable slider is movably inserted into the middle section of each of the four sliding rails, and one end of the movable slider is fixedly connected to the movable plate. A fixing mechanism is provided between the movable plate and the double-layer box.

[0009] Furthermore, the fixing mechanism includes two auxiliary blocks, which are respectively fixedly connected to the inner wall of the double-layer box. A fixing block is movably inserted inside the auxiliary block, and a spring is fixedly connected to the top of the fixing block. A fixing groove is opened on the surface of the moving plate.

[0010] Furthermore, a support plate is provided inside the support chamber, and lifting mechanisms are provided on both sides of the support plate and between the support chamber. The lifting mechanism includes two deflecting rods and a rotating shaft. One end of each of the two deflecting rods is rotatably sleeved on the surface of the support plate, and one end of one of the deflecting rods is rotatably sleeved on the side wall surface of the support chamber. The rotating shaft is rotatably inserted into the side wall of the support chamber. A torsion spring is provided on the surface of the rotating shaft. A push rod is fixedly connected to the top of the rotating shaft, and a first bevel gear is fixedly connected to the bottom of the rotating shaft. A second bevel gear is meshed with one side of the first bevel gear, and one end of the second bevel gear is fixedly connected to the end of one of the deflecting rods.

[0011] Furthermore, the angle between the deflection rod and the bottom plane of the bearing chamber is 5 degrees, and the angle between the push rod and the side wall plane of the bearing chamber is 10 degrees.

[0012] Furthermore, the centerline of the first bevel gear and the centerline of the rotating shaft are the same straight line, and the diameter of the first bevel gear is 1.1 times the diameter of the second bevel gear.

[0013] Furthermore, the bottom of the bearing chamber is provided with multiple support protrusions, the top of which is attached to the bottom of the bearing plate.

[0014] Furthermore, the bottom of the fixing block is arc-shaped, and the fixing groove matches the two fixing blocks.

[0015] Furthermore, both the double-layer sealing plate and the double-layer box are configured with a three-layer vibration isolation structure. The space between the three-layer vibration isolation shells is filled with materials such as sound insulation board, damping board, and environmentally friendly sound-absorbing cotton. Sealing gaskets are provided around the perimeter of the double-layer sealing plate.

[0016] The technical effects and advantages of this invention are as follows:

[0017] 1. This invention, by setting up two carrying mechanisms, allows the test product in one carrying chamber to undergo silent testing, while simultaneously removing the test product from the other carrying mechanism that has completed testing and placing the product to be tested. This offsets the working time occupied by placing and retrieving the product, enabling continuous silent testing of the product and effectively improving the product testing speed.

[0018] 2. This invention features a support plate. When the support mechanism moves, the support plate is lifted by a lifting mechanism. When the support mechanism moves out of the double-layer box, the support plate moves the test product upward from the support compartment, which facilitates the placement and retrieval of the test product and effectively improves the testing efficiency of the silent test.

[0019] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the overall structure of an embodiment of the present invention is shown;

[0022] Figure 2 A front sectional view of an embodiment of the present invention is shown;

[0023] Figure 3 An embodiment of the present invention is shown. Figure 2 Enlarged view of part A;

[0024] Figure 4 A front sectional view of the bearing mechanism in an embodiment of the present invention is shown;

[0025] Figure 5 A left sectional view of the bearing mechanism in an embodiment of the present invention is shown;

[0026] In the diagram: 1. Double-layer box; 2. Base; 3. Box opening; 4. Support platform; 5. Movable plate; 6. Support compartment; 7. Double-layer enclosed plate; 8. Pull handle; 9. Sliding rail; 10. Moving slider; 11. Auxiliary block; 12. Fixed block; 13. Fixed groove; 14. Spring; 15. Support plate; 16. Deflection rod; 17. Rotating shaft; 18. Torsion spring; 19. Push rod; 20. First bevel gear; 21. Second bevel gear; 22. Support boss. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] This invention provides a silent test chamber for continuous testing, such as... Figure 1-5As shown, it includes a double-layer box body 1 and a base 2. Box openings 3 are provided at the bottom of both sides of the double-layer box body 1. Supporting platforms 4 are provided at the bottom of the box openings 3 on both sides of the double-layer box body 1. A movable plate 5 is provided inside the double-layer box body 1. Supporting mechanisms are provided on both sides of the movable plate 5.

[0029] The bearing mechanism consists of a bearing chamber 6 and two double-layer enclosed plates 7. One of the double-layer enclosed plates 7 is fixedly connected to the movable plate 5, and the other double-layer enclosed plate 7 has a pull handle 8 in the middle. Both the double-layer enclosed plate 7 and the double-layer box 1 are three-layer vibration isolation structures. The space between the three-layer vibration isolation shells is filled with materials such as sound insulation board, damping board, and environmentally friendly sound-absorbing cotton. Sealing gaskets are provided around the double-layer enclosed plate 7.

[0030] When a silent test is required on the test product, push the entire support mechanism to one side of the double-layer box 1, and then place the test product in the support compartment 6. Then push the support mechanism to move it to the other side of the double-layer box 1. At this time, the test product is in the test position inside the double-layer box 1, and pull the double-layer sealing plate 7 at the handle 8 position and the double-layer sealing plate 7 of the other support mechanism to close the box opening 3. The sealing gasket seals the entire box opening 3. At the same time, the support mechanism on the other side of the double-layer box 1 is completely on top of the support platform 4 on the other side, and the test product can be placed in the support compartment 6. After the test product in the double-layer box 1 has been tested, push the two support mechanisms to move it, and the tested product can be directly taken out. The tested product is then moved into the double-layer box 1 for testing.

[0031] This invention, by setting up two carrying mechanisms, allows the test product in one carrying chamber 6 to undergo silent testing, while simultaneously removing the test product from the other carrying mechanism that has completed testing and placing the product to be tested. This offsets the working time occupied by placing and retrieving the product, enabling continuous silent testing of the product and effectively improving the product testing speed.

[0032] like Figure 2-3 As shown, the movable plate 5 is provided with sliding rails 9 on all four sides. Both ends of the four sliding rails 9 are fixedly connected to the inner wall of the double-layer box 1. A movable slider 10 is movably inserted into the middle section of each of the four sliding rails 9. One end of the movable slider 10 is fixedly connected to the movable plate 5. A fixing mechanism is provided between the movable plate 5 and the double-layer box 1. The fixing mechanism includes two auxiliary blocks 11. The two auxiliary blocks 11 are fixedly connected to the inner wall of the double-layer box 1 respectively. A fixing block 12 is movably inserted into the auxiliary block 11. A spring 14 is fixedly connected to the top of the fixing block 12. A fixing groove 13 is opened on the surface of the movable plate 5. The bottom of the fixing block 12 is arc-shaped. The fixing groove 13 matches the two fixing blocks 12.

[0033] When the supporting mechanism is moved, the fixed block 12 is squeezed out by the fixed groove 13, causing the fixing mechanism to disconnect the immediate fixation of the moving plate 5. At the same time, the moving plate 5 is limited by the four sliding rails 9 through the moving slider 10. When the moving plate 5 moves to the other side of the sliding rail 9, because the bottom of the fixed block 12 is arc-shaped, the moving plate 5 pushes the fixed block 12 on the other side to retract into the auxiliary block 11. The spring 14 is compressed and deformed. When the fixed groove 13 moves to the position of the fixed block 12, the spring 14 resets and pushes the fixed block 12 into the fixed groove 13. The fixing mechanism immediately fixes the supporting mechanism.

[0034] The present invention, by setting a sliding track 9, makes the moving plate 5 move more stably within the double-layer box 1. At the same time, the fixing mechanism can fix the moving plate 5 immediately. With the cooperation of the sealing gasket, it is convenient to fix the bearing mechanism immediately, thus facilitating the testing and use by the testers.

[0035] like Figure 2 , Figure 4 and Figure 5 As shown, a support plate 15 is provided inside the bearing chamber 6. Multiple support protrusions 22 are provided at the bottom of the bearing chamber 6. The tops of the support protrusions 22 are attached to the bottom of the support plate 15. Lifting mechanisms are provided between both sides of the support plate 15 and the bearing chamber 6. Each lifting mechanism includes two deflecting rods 16 and a rotating shaft 17. One end of each deflecting rod 16 is rotatably sleeved on the surface of the support plate 15, and one end of another deflecting rod 16 is rotatably sleeved on the side wall surface of the bearing chamber 6. The rotating shaft 17 is rotatably inserted into the inside of the side wall of the bearing chamber 6. The deflecting rods 16 are clamped to the bottom plane of the bearing chamber 6. The angle is 5 degrees. A torsion spring 18 is provided on the surface of the rotating shaft 17. A push rod 19 is fixedly connected to the top of the rotating shaft 17. The push rod 19 makes an angle of 10 degrees with the side wall plane of the bearing chamber 6. A first bevel gear 20 is fixedly connected to the bottom of the rotating shaft 17. A second bevel gear 21 is meshed with one side of the first bevel gear 20. The center line of the first bevel gear 20 and the center line of the rotating shaft 17 are the same straight line. The diameter of the first bevel gear 20 is 1.1 times the diameter of the second bevel gear 21. One end of the second bevel gear 21 is fixedly connected to the end of one of the deflection rods 16.

[0036] When the carrying mechanism moves to one side of the double-layer box 1, the push rod 19 contacts the double-layer box 1 and is pushed and deflected by it. The rotating shaft 17 then drives the first bevel gear 20 to rotate, and the torsion spring 18 is twisted and deformed. The rotation of the first bevel gear 20 drives the second bevel gear 21 to rotate. Since the angle between the deflection rod 16 and the bottom plane of the carrying chamber 6 is 5 degrees, the corresponding deflection rod 16 is driven to deflect. With the assistance of the two deflection rods 16 on the other side, the carrying plate 15 is gradually lifted by the deflection rods 16 and the test product is raised, making it convenient to place and pick up the test product. When the carrying mechanism moves back, the deflection rod 16 gradually loses the obstruction of the double-layer box 1, the torsion spring 18 resets and deflects the rotating shaft 17 back. At the same time, the carrying plate 15 slowly falls back to the bottom of the carrying chamber 6 under the action of the gravity of the test product.

[0037] The present invention provides a support plate 15. When the support mechanism moves, the support plate 15 is lifted by the lifting mechanism. When the support mechanism moves out of the double-layer box 1, the support plate 15 moves the test product upward from the support compartment 6, which facilitates the placement and retrieval of the test product and effectively improves the test efficiency of the silent test.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A silent test chamber for continuous testing, comprising a double-layer chamber (1) and a base (2), characterized in that: The double-layer box (1) has a box opening (3) at the bottom of both sides, and a support platform (4) is provided at the bottom of the box opening (3) on both sides of the double-layer box (1). A movable plate (5) is provided inside the double-layer box (1), and a support mechanism is provided on both sides of the movable plate (5). The bearing mechanism consists of a bearing chamber (6) and two double-layer closed plates (7), one of which is fixedly connected to the movable plate (5), and the other double-layer closed plate (7) is provided with a pull handle (8) in the middle. Both the double-layer enclosed plate (7) and the double-layer box (1) are three-layer vibration isolation structures. The space between the shells of the three-layer vibration isolation structure is filled with sound insulation board, damping board or environmentally friendly sound-absorbing cotton. The double-layer enclosed plate (7) is provided with sealing gaskets around its perimeter. The double-layer sealing plate (7) at the position of the pull handle (8) of one of the bearing mechanisms and the double-layer sealing plate (7) of the other bearing mechanism at the position of the moving plate (5) seal the box opening (3), and the sealing gasket seals the box opening (3) as a whole.

2. The silent test chamber for continuous testing according to claim 1, characterized in that: The movable plate (5) is provided with sliding rails (9) around its perimeter. Both ends of the four sliding rails (9) are fixedly connected to the inner wall of the double-layer box (1). A movable slider (10) is movably inserted into the middle section of each of the four sliding rails (9). One end of the movable slider (10) is fixedly connected to the movable plate (5). A fixing mechanism is provided between the movable plate (5) and the double-layer box (1).

3. The silent test chamber for continuous testing according to claim 2, characterized in that: The fixing mechanism includes two auxiliary blocks (11), which are fixedly connected to the inner wall of the double-layer box (1) respectively. A fixing block (12) is movably inserted inside the auxiliary block (11), and a spring (14) is fixedly connected to the top of the fixing block (12). A fixing groove (13) is opened on the surface of the moving plate (5).

4. The silent test chamber for continuous testing according to claim 1, characterized in that: The bearing chamber (6) is provided with a bearing plate (15) inside. Lifting mechanisms are provided between the bearing plate (15) and the bearing chamber (6) on both sides. The lifting mechanism includes two deflecting rods (16) and a rotating shaft (17). One end of the two deflecting rods (16) is rotatably sleeved on the surface of the bearing plate (15), and the other end of the deflecting rods (16) is rotatably sleeved on the side wall surface of the bearing chamber (6). The rotating shaft (17) is rotatably inserted into the side wall of the bearing chamber (6). A torsion spring (18) is provided on the surface of the rotating shaft (17). A push rod (19) is fixedly connected to the top of the rotating shaft (17). A first bevel gear (20) is fixedly connected to the bottom of the rotating shaft (17). A second bevel gear (21) is meshed on one side of the first bevel gear (20). One end of the second bevel gear (21) is fixedly connected to the end of one of the deflecting rods (16).

5. A silent test chamber for continuous testing according to claim 4, characterized in that: The angle between the deflection rod (16) and the bottom plane of the bearing chamber (6) is 5 degrees, and the angle between the push rod (19) and the side wall plane of the bearing chamber (6) is 10 degrees.

6. A silent test chamber for continuous testing according to claim 4, characterized in that: The center line of the first bevel gear (20) and the center line of the rotating shaft (17) are the same straight line, and the diameter of the first bevel gear (20) is 1.1 times the diameter of the second bevel gear (21).

7. A silent test chamber for continuous testing according to claim 4, characterized in that: The bottom of the bearing chamber (6) is provided with multiple support protrusions (22), and the top of the support protrusions (22) is attached to the bottom of the bearing plate (15).

8. The silent test chamber for continuous testing according to claim 3, characterized in that: The bottom of the fixing block (12) is arc-shaped, and the fixing groove (13) matches the two fixing blocks (12).

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