Dustproof test base for digital loudspeaker protective cover

Abstract

The utility model discloses a dustproof test pedestal for a digital loudspeaker protection cover, comprising a pedestal, a cover plate whose one end is rotatably connected with one side of the pedestal, and a lock catch seat whose one end is rotatably connected with the other side of the pedestal, and the central position of the pedestal is provided with a limiting groove used for placing a protection cover to be tested. The bottom of the limiting groove is provided with a vent hole penetrating through the base, the lower end of the vent hole is connected with an air exhaust channel, the other end of the lock catch base is provided with a lock hook, the other end, away from the base, of the cover plate is provided with a clamping part fixed to the lock hook in a matched mode, and an elastic piece is arranged between the lock catch base and the base. According to the digital loudspeaker protection cover dustproof performance evaluation device, the dustproof performance of the digital loudspeaker protection cover can be efficiently evaluated, and powerful support is provided for the improvement of the product quality.

Description

Technical Field

[0001] The utility model relates to the technical field of test bases, in particular to a dustproof test base for a digital loudspeaker protective cover. Background Art

[0002] When testing the dustproof performance of the digital speaker protective cover, the protective cover cavity needs to be sealed, and the dustproof performance of the protective cover is tested by extracting the cleanliness of the air passing through the protective cover cavity. Currently, there is no test base that can meet the test requirements. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model provides a dustproof test base for a digital speaker protective cover, which has a simple structure and is easy to operate. It can efficiently evaluate the dustproof performance of the digital speaker protective cover and provide strong support for improving product quality. At the same time, the test base also has good durability and stability.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is a dustproof test base for a digital speaker protective cover, including: a base, a cover plate rotatably connected to one side of the base at one end, and a locking seat rotatably connected to the other side of the base at one end, the locking seat is used to close and fix the base and the cover plate, a limiting groove for placing the protective cover to be tested is provided at the center of the base, an air inlet square hole corresponding to the position of the limiting groove is provided on the cover plate, an air vent penetrating the base is provided at the bottom of the limiting groove, the lower end of the air vent is connected to an exhaust channel, the air vent is a conical structure, and the air vent and the exhaust channel are an integrated structure.

[0005] In a preferred embodiment of the present invention, the vent hole is a cylindrical structure.

[0006] In a preferred embodiment of the present invention, a silicone gasket is arranged in the limiting groove.

[0007] In a preferred embodiment of the present invention, a lock hook is provided at the other end of the lock seat, and a clamping portion that cooperates and is fixed with the lock hook is provided on the other end of the cover plate away from the base. An elastic member is provided between the lock seat and the base, and the elastic member is used to apply a torque to the lock seat to rotate closer to the base.

[0008] In a preferred embodiment of the present invention, the elastic member includes two groups of compression springs, and the two ends of the compression springs are restricted between the lower side of the lock seat and the base.

[0009] In a preferred embodiment of the present invention, the locking seat is inclined inwardly toward the lower part of the base and retains a gap with the base to form a pressing slope.

[0010] In a preferred embodiment of the present invention, one end of the cover plate connected to the base is an arc surface structure.

[0011] In a preferred embodiment of the present invention, the clamping portion is a clamping inclined surface arranged on the other end of the cover plate.

[0012] In a preferred embodiment of the present invention, the surfaces of the base, the vent hole and the air extraction channel are coated with an anti-sticking layer.

[0013] In a preferred embodiment of the present invention, the size of the air inlet square hole is adapted to the diaphragm detection area of ​​the protective cover to be tested in the limiting groove.

[0014] The beneficial effects of the utility model are as follows: the practical dustproof test base for the digital speaker protective cover has a simple structure and is easy to operate. It can efficiently evaluate the dustproof performance of the digital speaker protective cover and provide strong support for improving product quality. At the same time, the test base also has good durability and stability and can meet the needs of long-term and high-intensity testing. The entire test base has good sealing performance, so that air only circulates in the front and rear areas of the protective cover. In addition, materials with certain toughness such as silicone gaskets are added in the limiting groove to achieve a better sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0016] Figure 1 An exploded view of the dustproof test base of the digital speaker protection cover of the utility model;

[0017] Figure 2 This is a structural schematic diagram of a dustproof test base for a digital speaker protection cover of the utility model;

[0018] Figure 3 It is a side sectional view of the dustproof test base of the digital speaker protection cover of the utility model;

[0019] Figure 4 It is a side view of the dustproof test base of the digital speaker protection cover of the utility model. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-4 The utility model discloses a dustproof test base for a digital speaker protective cover, comprising: a base 1, a cover plate 2 with one end rotatably connected to one side of the base, and a locking seat 3 with one end rotatably connected to the other side of the base.

[0022] Among them, a limiting groove 4 for placing the protective cover to be tested is arranged at the center position of the base, a vent hole 5 that runs through the entire base is arranged at the bottom of the limiting groove, and an exhaust channel 6 is connected to the lower end of the vent hole. A lock hook 31 is arranged at the other end of the lock seat, and a clamping part 21 that cooperates with the lock hook and is fixed is arranged on the other end of the cover plate away from the base. The clamping part is a clamping inclined surface arranged on the other end of the cover plate. Specifically, one end of the cover plate connected to the base is processed into an arc surface structure 22 to facilitate the movable opening and closing of the cover plate. An elastic member 7 is arranged between the lock seat and the base, and the elastic member is used In order to apply a torque to the lock seat to rotate closer to the base, an air inlet square hole 8 corresponding to the position of the limiting groove is arranged on the cover plate, and a silicone gasket 9 is arranged in the limiting groove to prevent the cover plate from squeezing the protective cover to be tested and causing damage. During the specific operation, open the cover plate, put the protective cover to be tested into the limiting groove, the back of the protective cover faces the silicone gasket, the position of the dustproof film faces the vent, close the cover plate and press the protective cover tightly, and the lock seat self-locks the cover plate through the action of the compression elastic member, completes the closing and fixation of the base and the cover plate, and avoids the loosening and opening of the cover plate during the test.

[0023] Specifically, the vent is a conical structure, in which the vent and the exhaust channel are an integrated structure. In the present embodiment, since the hose of the connected detection equipment is relatively small and the sound-transmitting membrane in the protective cover to be tested is 10 mm, it is necessary to design a conical vent and a cylindrical exhaust channel to form an integrated connecting channel structure, which can not only allow air to circulate and absorb dust, but also avoid steps caused by designing cylindrical exhaust channels of different sizes, which can cause dust accumulation. However, it should be noted that if the hose size of the equipment meets the 10 mm requirement, the vent and the exhaust channel can also be set to an integrated 10 mm cylindrical channel, and the specific size is not limited.

[0024] Specifically, the size of the air intake square hole is consistent with the diaphragm detection area of ​​the protective cover to be tested in the limiting groove, which is used for air circulation. The elastic member includes two sets of compression springs, and the two ends of the two sets of compression springs are restricted between the lower side of the lock seat and the base. A 45-degree inclined clamping portion is cut out at the top end of the other end of the cover plate, and the cover plate is connected to the base through a pin, and the pins are clamped by threads on both sides with top screws to prevent them from falling out. When the cover plate is pressed down to lock the buckle, the inclined surface of the clamping portion squeezes the lock hook outward, and the cover plate slides smoothly into the lock hook of the lock seat. The lock seat is rotatably connected to the base through the pin, and the pins are clamped by threads on both sides with top screws to prevent them from falling out. There is a top screw on the left, and the gap between the lock seat and the base can be adjusted. The two sets of compression springs arranged below the lock seat are used for self-locking of the lock seat. The lock seat is inclined inward towards the lower position of the base and retains a gap with the base, thereby forming a pressing slope 32, which is convenient for pressing to unlock.

[0025] In addition, the surface of the entire base, vent holes and exhaust channels are coated with anti-sticking layers such as Teflon to prevent dust from being retained.

[0026] When used specifically, the detection equipment is a dust particle tester. First, the number of dust particles in the ambient air is tested. The cover is opened, and the protective cover 10 to be tested is placed in the limiting groove. The back of the protective cover faces the silicone gasket, and the sealing effect is good. The dustproof film on the protective cover faces the air vent of the cone. The cover is closed and the protective cover is pressed. The lock seat elastically self-locks the cover through the compression spring. The exhaust channel under the base circle is connected to the test equipment through a hose. The detection equipment is started by pressing once. The detection equipment exhausts air at a certain flow rate through the exhaust channel of the cylinder. The ambient air on the other side passes through the air inlet square hole of the cover and is filtered through the dustproof film of the protective cover before entering the air vent of the cone. The equipment will continue to inhale and count the particles in the gas to compare the number of dust particles in the ambient air to determine whether there is a dustproof effect.

[0027] The beneficial effects of the utility model are: simple structure, easy operation, and can efficiently evaluate the dustproof performance of the digital speaker protective cover, providing strong support for improving product quality. At the same time, the test base also has good durability and stability, and can meet the needs of long-term and high-intensity testing. The entire test base has good sealing performance, so that air only circulates in the front and rear areas of the protective cover; in addition, adding silicone gaskets and other materials with certain toughness in the limiting groove can achieve better sealing effect.

[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A dustproof test base for a digital speaker protective cover, characterized in that: include: A base, a cover plate with one end rotatably connected to one side of the base, and a locking seat with one end rotatably connected to the other side of the base, the locking seat is used to close and fix the base and the cover plate, a limiting groove for placing the protective cover to be tested is provided at the center of the base, an air inlet square hole corresponding to the position of the limiting groove is provided on the cover plate, an air vent penetrating the base is provided at the bottom of the limiting groove, an exhaust channel is connected to the lower end of the air vent, the air vent is a conical structure, and the air vent and the exhaust channel are an integrated structure.

2. A digital speaker protection cover dustproof test base according to claim 1, characterized in that: The vent hole is a cylindrical structure.

3. A digital speaker protection cover dustproof test base according to claim 1, characterized in that: A silicone gasket is arranged in the limiting groove.

4. A digital speaker protection cover dustproof test base according to claim 1, characterized in that: A lock hook is provided at the other end of the lock seat, and a clamping portion that cooperates and fixes with the lock hook is provided on the other end of the cover plate away from the base. An elastic member is provided between the lock seat and the base, and the elastic member is used to apply a torque to the lock seat to rotate closer to the base.

5. A digital speaker protection cover dustproof test base according to claim 4, characterized in that: The elastic member includes two groups of compression springs, and the two ends of the compression springs are restricted between the lower side of the lock seat and the base.

6. A digital speaker protection cover dustproof test base according to claim 1, characterized in that: The locking seat is inclined inwardly toward the lower part of the base and has a gap with the base to form a pressing slope.

7. A digital speaker protection cover dustproof test base according to claim 1, characterized in that: One end of the cover plate connected to the base is an arc surface structure.

8. The digital speaker protection cover dustproof test base according to claim 4, characterized in that: The clamping portion is a clamping inclined surface arranged on the other end of the cover plate.

9. The digital speaker protection cover dustproof test base according to claim 1, characterized in that: The surfaces of the base, the vent hole and the air extraction channel are coated with an anti-sticking layer.

10. The digital speaker protection cover dustproof test base according to claim 1, characterized in that: The size of the air inlet square hole is adapted to the diaphragm detection area of ​​the protective cover to be tested in the limiting groove.

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