One-to-two horn air tightness detection device

Abstract

The utility model discloses one-to-two horn air tightness detection equipment, which comprises a main fluid channel, a valve terminal channel and a switching channel, and is characterized in that the main fluid channel comprises an air source, a filtering pressure reducing valve connected with the air source, an electric pressure regulating valve connected with the filtering pressure reducing valve, an air tank connected with the electric pressure regulating valve and a speed regulating valve connected with the air tank; the electric pressure regulating valve is connected with a pressure regulating valve in parallel; the pressure regulating valve is connected with a one-way valve in series; the valve terminal channel is connected with the speed regulating valve and comprises a valve terminal high-pressure channel and a valve terminal low-pressure channel which are arranged in parallel, the valve terminal high-pressure channel is used for conveying high-pressure test fluid, the valve terminal low-pressure channel is used for conveying low-pressure test fluid, the valve terminal high-pressure channel is connected with a first test basin, and the valve terminal low-pressure channel is connected with a second test basin; the first test basin and the second test basin are used for placing a horn, and a switching channel is arranged between the valve terminal high-pressure channel and the valve terminal low-pressure channel. The structure is simple and stable, and testing of a plurality of loudspeakers is further realized.

Description

Technical Field

[0001] The utility model relates to the field of speaker detection equipment, in particular to a one-to-two speaker air tightness detection device. Background Art

[0002] Testing the airtightness of a speaker's eardrum affects the stability of the speaker's vibration, which in turn affects the speaker's sound quality. Existing testing methods typically use a single method: the speaker is placed on a test basin, and a pneumatic output device delivers a predetermined air pressure to the pelvis to assess airtightness.

[0003] Existing tests can generally only test a single speaker and a single air pressure. For example, after the test channel tests the low-pressure air pressure, it will test the high-pressure air pressure. The test time includes the low-pressure test time, the high-pressure test time, and the low-pressure gas and high-pressure gas switching time. In addition, only one can be placed at a time, which is slow and affects the test efficiency. Utility Model Content

[0004] The main purpose of this utility model is to propose a one-to-two speaker air tightness detection device, which aims to realize the test of at least two speakers by improving the test channel, and the high-pressure air pressure and low-pressure air pressure are convenient to switch, and automatic testing can be realized in the interval between speaker replacement, which effectively improves the test efficiency.

[0005] To achieve the above-mentioned purpose, the present invention proposes a one-to-two speaker air tightness detection device, comprising:

[0006] The main fluid channel includes an air source, a filter pressure reducing valve connected to the air source, an electric pressure regulating valve connected to the filter pressure reducing valve, an air tank connected to the electric pressure regulating valve, and a speed regulating valve connected to the air tank.

[0007] The electric pressure regulating valve is connected in parallel with a pressure regulating valve, and the pressure regulating valve is connected in series with a one-way valve;

[0008] The valve island channel is connected to the speed regulating valve, and the valve island channel includes a valve island high-pressure channel and a valve island low-pressure channel arranged in parallel. The valve island high-pressure channel is used to transport high-pressure test fluid, and the valve island low-pressure channel is used to transport low-pressure test fluid.

[0009] The high-pressure channel of the valve island is connected to a first test basin, and the low-pressure channel of the valve island is connected to a second test basin, and the first test basin and the second test basin are used to place speakers;

[0010] A switching channel is provided between the valve island high-pressure channel and the valve island low-pressure channel, and the switching channel can connect the valve island high-pressure channel with the second test basin or connect the valve island low-pressure channel with the first test basin;

[0011] The valve island high-pressure channel includes a high-pressure solenoid valve, a high-pressure intake two-way solenoid valve, a high-pressure sensor, a high-pressure flow sensor, a high-pressure pressure-maintaining solenoid valve, a high-pressure exhaust two-way solenoid valve and a high-pressure switching two-way solenoid valve which are sequentially connected to each other, the high-pressure solenoid valve is connected to the speed regulating valve, and the high-pressure switching two-way solenoid valve is connected to the first test basin;

[0012] The low-pressure channel of the valve island includes a low-pressure solenoid valve, a low-pressure intake two-way solenoid valve, a low-pressure sensor, a low-pressure flow sensor, a low-pressure pressure-maintaining solenoid valve, a low-pressure exhaust two-way solenoid valve and a low-pressure switching two-way solenoid valve which are connected to each other in sequence. The low-pressure solenoid valve is connected to the speed regulating valve, and the low-pressure switching two-way solenoid valve is connected to the second test basin. The first end of the switching channel is arranged between the high-pressure exhaust two-way solenoid valve and the high-pressure switching two-way solenoid valve.

[0013] The second end of the switching channel is arranged between the low-pressure exhaust two-way solenoid valve and the low-pressure switching two-way solenoid valve; when either the high-pressure exhaust two-way solenoid valve or the low-pressure exhaust two-way solenoid valve is opened, the other is closed; when either the high-pressure switching two-way solenoid valve or the low-pressure switching two-way solenoid valve is opened, the other is closed.

[0014] Preferably, an externally connected hand valve is provided between the low-pressure exhaust two-way solenoid valve and the low-pressure switching two-way solenoid valve.

[0015] Preferably, the hand valve is connected to a calibration instrument.

[0016] The main fluid channel is used to control the gas source and adjust the fluid pressure and flow rate, thereby realizing simultaneous pressure supply to the high-pressure channel and the low-pressure channel of the valve island; when the switching channel is closed, the high-pressure channel of the valve island is connected to the first test basin for testing the first speaker, and the low-pressure channel of the valve island is connected to the second test basin for testing the second speaker; when the switching channel is opened, the high-pressure channel of the valve island is first connected to the second test basin (the first test basin is in a closed state at this time), and then a high-pressure test is performed on the second speaker.

[0017] Then the low-pressure channel of the valve island is connected to the second test basin (the second test basin is closed at this time), and then the first speaker is tested at low pressure.

[0018] Its structure is simple and stable, and multiple groups of valve island channels can be connected in parallel according to the number of products, thereby realizing the testing of multiple speakers, effectively improving the testing efficiency and effectively reducing the cost of testing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the high-pressure channel of the valve island;

[0021] Figure 3 Schematic diagram of the low-pressure channel of the valve island.

[0022] In the figure,

[0023] 1 is the main fluid channel, 11 is the gas source, 12 is the filter pressure reducing valve, 121 is the electric pressure regulating valve, 13 is the gas tank, 14 is the speed regulating valve, 15 is the pressure regulating valve, 16 is the one-way valve,

[0024] 2 is the high-pressure channel of the valve island, 21 is the high-pressure solenoid valve, 22 is the high-pressure intake two-way solenoid valve, 23 is the high-pressure sensor, 24 is the high-pressure flow sensor, 25 is the high-pressure pressure-maintaining solenoid valve, 26 is the high-pressure exhaust two-way solenoid valve, 27 is the high-pressure switching two-way solenoid valve,

[0025] 3 is the low-pressure channel of the valve island, 31 is the low-pressure solenoid valve, 33 is the low-pressure intake two-way solenoid valve, 33 is the low-pressure sensor, 34 is the low-pressure flow sensor, 35 is the low-pressure pressure-maintaining solenoid valve, 36 is the low-pressure exhaust two-way solenoid valve, 37 is the low-pressure switching two-way solenoid valve,

[0026] 41 is the first test basin, 42 is the second test basin,

[0027] 5 is the switching channel,

[0028] 6 is a hand valve and 61 is a calibration instrument. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] 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 indications are 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 indications will also change accordingly.

[0031] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only 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 specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] like Figures 1 to 3 As shown, a one-to-two speaker air tightness detection device includes:

[0033] The main fluid channel 1 includes an air source, a filter pressure reducing valve connected to the air source, an electric pressure regulating valve connected to the filter pressure reducing valve, a gas tank connected to the electric pressure regulating valve, and a speed regulating valve connected to the gas tank.

[0034] The electric pressure regulating valve is connected in parallel with a pressure regulating valve, and the pressure regulating valve is connected in series with a one-way valve;

[0035] The main fluid channel 1 is used to control the gas source and adjust the fluid pressure and flow rate, thereby simultaneously supplying pressure to the valve island high-pressure channel 2 and the valve island low-pressure channel 3;

[0036] The valve island channel is connected to the speed regulating valve. The valve island channel includes a valve island high-pressure channel 2 and a valve island low-pressure channel 3 arranged in parallel. The valve island high-pressure channel 2 is used to transport high-pressure test fluid, and the valve island low-pressure channel 3 is used to transport low-pressure test fluid.

[0037] The valve island high-pressure channel 2 is connected to a first test basin 41, and the valve island low-pressure channel 3 is connected to a second test basin 42. The first test basin 41 and the second test basin 42 are used to place speakers;

[0038] A switching channel 5 is provided between the valve island high-pressure channel 2 and the valve island low-pressure channel 3 , and the switching channel 5 can connect the valve island high-pressure channel 2 with the second test basin 42 or connect the valve island low-pressure channel 3 with the first test basin 41 .

[0039] The main fluid channel 1 is used to control the gas source and adjust the fluid pressure and flow rate, thereby realizing simultaneous pressure supply to the valve island high-pressure channel 2 and the valve island low-pressure channel 3; when the switching channel 5 is closed, the valve island high-pressure channel 2 is connected to the first test basin 41 for testing the first speaker, and the valve island low-pressure channel 3 is connected to the second test basin 42 for testing the second speaker. When the switching channel 5 is opened, the valve island high-pressure channel 2 is first connected to the second test basin 42 (the first test basin 41 is in a closed state at this time), and then a high-pressure test is performed on the second speaker.

[0040] Then the valve island low-pressure channel 3 is connected to the second test basin 42 (the second test basin 42 is closed at this time), and then the first speaker is tested at a low pressure.

[0041] Its structure is simple and stable, and multiple groups of valve island channels can be connected in parallel according to the number of products, thereby realizing the testing of multiple speakers, effectively improving the testing efficiency and effectively reducing the cost of testing equipment.

[0042] Specifically, the valve island high-pressure channel 2 includes a high-pressure solenoid valve, a high-pressure intake two-way solenoid valve, a high-pressure sensor, a high-pressure flow sensor, a high-pressure pressure maintaining solenoid valve, a high-pressure exhaust two-way solenoid valve and a high-pressure switching two-way solenoid valve which are connected to each other in sequence. The high-pressure solenoid valve is connected to the speed control valve, and the high-pressure switching two-way solenoid valve is connected to the first test basin 41.

[0043] By controlling each solenoid valve separately through the control system, the high-pressure channel 2 of the valve island can have a higher fluid pressure, and the opening and closing of each solenoid valve can realize the opening or closing of the fluid channel, so that the high-pressure channel 2 of the valve island and the low-pressure channel 3 of the valve island do not interfere with each other.

[0044] In an embodiment of the utility model, the valve island low-pressure channel 3 includes a low-pressure solenoid valve, a low-pressure intake two-way solenoid valve, a low-pressure sensor, a low-pressure flow sensor, a low-pressure pressure maintaining solenoid valve, a low-pressure exhaust two-way solenoid valve and a low-pressure switching two-way solenoid valve which are connected to each other in sequence. The low-pressure solenoid valve is connected to the speed control valve, and the low-pressure switching two-way solenoid valve is connected to the second test basin 42.

[0045] Specifically, the first end of the switching channel 5 is provided between the high-pressure exhaust two-way solenoid valve and the high-pressure switching two-way solenoid valve;

[0046] The second end of the switching channel 5 is arranged between the low-pressure exhaust two-way solenoid valve and the low-pressure switching two-way solenoid valve.

[0047] In the actual design, the two flow channels are opened or closed through the high-pressure exhaust two-way solenoid valve and the low-pressure exhaust two-way solenoid valve. When either one is opened, the other is closed; when the high-pressure switching two-way solenoid valve and the low-pressure exhaust two-way solenoid valve are turned on, the other is closed, thereby realizing the flow channel connection of the first test basin 41 or the second test basin 42.

[0048] In the embodiment of the present utility model, when any one of the high-pressure exhaust two-way solenoid valve and the low-pressure exhaust two-way solenoid valve is opened, the other is closed.

[0049] Specifically, when either one of the high-pressure switching two-way solenoid valve and the low-pressure switching two-way solenoid valve is turned on, the other is turned off.

[0050] In the embodiment of the present utility model, an externally connected manual valve 6 is provided between the low-pressure exhaust two-way solenoid valve and the low-pressure switching two-way solenoid valve.

[0051] Specifically, the hand valve 6 is connected to a calibration instrument 61. In actual design, predetermined pressure sensors and other instruments can be connected through the hand valve to adjust the fluid pressure, thereby making the test parameters more three-dimensional.

[0052] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A one-to-two speaker air tightness detection device, characterized in that: include: The main fluid channel includes an air source, a filter pressure reducing valve connected to the air source, an electric pressure regulating valve connected to the filter pressure reducing valve, an air tank connected to the electric pressure regulating valve, and a speed regulating valve connected to the air tank. The electric pressure regulating valve is connected in parallel with a pressure regulating valve, and the pressure regulating valve is connected in series with a one-way valve; The valve island channel is connected to the speed regulating valve, and the valve island channel includes a valve island high-pressure channel and a valve island low-pressure channel arranged in parallel. The valve island high-pressure channel is used to transport high-pressure test fluid, and the valve island low-pressure channel is used to transport low-pressure test fluid. The high-pressure channel of the valve island is connected to a first test basin, and the low-pressure channel of the valve island is connected to a second test basin, and the first test basin and the second test basin are used to place speakers; A switching channel is provided between the valve island high-pressure channel and the valve island low-pressure channel, and the switching channel can connect the valve island high-pressure channel with the second test basin or connect the valve island low-pressure channel with the first test basin; The valve island high-pressure channel includes a high-pressure solenoid valve, a high-pressure intake two-way solenoid valve, a high-pressure sensor, a high-pressure flow sensor, a high-pressure pressure-maintaining solenoid valve, a high-pressure exhaust two-way solenoid valve and a high-pressure switching two-way solenoid valve which are sequentially connected to each other, the high-pressure solenoid valve is connected to the speed regulating valve, and the high-pressure switching two-way solenoid valve is connected to the first test basin; The low-pressure channel of the valve island includes a low-pressure solenoid valve, a low-pressure intake two-way solenoid valve, a low-pressure sensor, a low-pressure flow sensor, a low-pressure pressure-maintaining solenoid valve, a low-pressure exhaust two-way solenoid valve and a low-pressure switching two-way solenoid valve which are connected to each other in sequence. The low-pressure solenoid valve is connected to the speed regulating valve, and the low-pressure switching two-way solenoid valve is connected to the second test basin. The first end of the switching channel is arranged between the high-pressure exhaust two-way solenoid valve and the high-pressure switching two-way solenoid valve. The second end of the switching channel is arranged between the low-pressure exhaust two-way solenoid valve and the low-pressure switching two-way solenoid valve; when either the high-pressure exhaust two-way solenoid valve or the low-pressure exhaust two-way solenoid valve is opened, the other is closed; when either the high-pressure switching two-way solenoid valve or the low-pressure switching two-way solenoid valve is opened, the other is closed.

2. The one-to-two speaker air tightness testing device according to claim 1, characterized in that: An externally connected hand valve is provided between the low-pressure exhaust two-way solenoid valve and the low-pressure switching two-way solenoid valve.

3. The one-to-two speaker air tightness testing device according to claim 2, characterized in that: The hand valve is connected to a calibration instrument.

Images