阅读说明：本技术 一种英语教学扩音器生产测试装置 (Production testing device for English teaching loudspeaker ) 是由 刘慧娟 于 2021-09-17 设计创作，主要内容包括：本发明涉及教学设备技术领域,具体为一种英语教学扩音器生产测试装置,包括测试箱,所述测试箱中固定安装有底座,且底座上滑动连接有拉杆和滑座,且拉杆和滑座固定连接在端板上,所述滑座上设置有主体槽和耳麦槽,且滑座上固定连接有端头,所述端头上固定连接有复位弹簧,且复位弹簧上固定连接有限位件,所述测试箱上设置有插槽,且插槽连通有限位槽,所述限位槽中固定安装有固定卡件,且固定卡件上固定连接有滑杆,所述滑杆上滑动安装有活动卡件；通过带顶部盖板的测试箱构成扩音器的测试空间,并且测试箱的箱壁上安装有被动和主动双重组合降噪机构,分别针对中高频和低频声波进行吸收,足以全面的衡量扩音器的质量。(The invention relates to the technical field of teaching equipment, in particular to a production testing device of an English teaching loudspeaker, which comprises a testing box, wherein a base is fixedly arranged in the testing box, a pull rod and a sliding seat are connected onto the base in a sliding manner, the pull rod and the sliding seat are fixedly connected onto an end plate, a main body groove and an earphone groove are arranged on the sliding seat, an end head is fixedly connected onto the sliding seat, a reset spring is fixedly connected onto the end head, a limiting piece is fixedly connected onto the reset spring, an inserting groove is formed in the testing box and communicated with a limiting groove, a fixed clamping piece is fixedly arranged in the limiting groove, a sliding rod is fixedly connected onto the fixed clamping piece, and a movable clamping piece is slidably arranged on the sliding rod; the testing box with the top cover plate forms a testing space of the loudspeaker, and the box wall of the testing box is provided with a passive and active dual combined noise reduction mechanism which respectively absorbs medium-high frequency sound waves and low-frequency sound waves, so that the quality of the loudspeaker can be comprehensively measured.)

1. The utility model provides an english teaching megaphone production testing arrangement, includes test box (1), its characterized in that: the testing box is characterized in that a base (2) is fixedly arranged in the testing box (1), a pull rod (3) and a sliding seat (4) are connected to the base (2) in a sliding manner, the pull rod (3) and the sliding seat (4) are fixedly connected to an end plate (5), a main body groove (6) and an earphone groove (7) are arranged on the sliding seat (4), an end (8) is fixedly connected to the sliding seat (4), a reset spring (9) is fixedly connected to the end (8), a limiting part (10) is fixedly connected to the reset spring (9), a slot (11) is arranged on the testing box (1), the slot (11) is communicated with a limiting groove (12), a fixing clamping part (13) is fixedly arranged in the limiting groove (12), a sliding rod (14) is fixedly connected to the fixing clamping part (13), a movable silencing clamping part (15) is arranged on the sliding rod (14), a silencing sound insulation plate (16) and a silencing cup (17) are fixedly arranged on the testing box (1), and fixed mounting has amortization piece (18) in amortization cup (17), swing joint has apron (19) on test box (1), and fixed mounting has closing plate (20) on apron (19), fixed mounting has buckle (21) on apron (19), and fixed mounting has initiative acoustical panel (22) in test box (1), fixed mounting has signal wheat (23) on initiative acoustical panel (22), and signal wheat (23) electric connection is on treater (24), treater (24) electric connection has amortization loudspeaker (25), fixed mounting has monitor (26) in test box (1).

2. The production testing device of the English teaching loudspeaker of claim 1, characterized in that: base (2) fixed mounting has on the bottom surface of test box (1), and pull rod (3) are connected in the spout of base (2) side, slide (4) are through stabilizer blade sliding connection at the upper surface of base (2), and are provided with seal assembly on end plate (5).

3. The production testing device of the English teaching loudspeaker of claim 1, characterized in that: the main body groove (6) is a rectangular groove, the earphone groove (7) is composed of a headset groove and a microphone groove, and cushion layers are arranged on the main body groove (6) and the earphone groove (7) groove walls.

4. The production testing device of the English teaching loudspeaker of claim 1, characterized in that: end (8) are installed in the side of slide (4), and reset spring (9) are installed in the spout of end (8) below, locating part (10) sliding connection is in the spout, and locating part (10) are provided with the unilateral cambered surface, spacing groove (12) set up in the below of slot (11), and fixed fastener (13) set up the notch department at spacing groove (12), slide bar (14) are connected in the side of fixed fastener (13), and movable fastener (15) are the fusiformis structure.

5. The production testing device of the English teaching loudspeaker of claim 1, characterized in that: the sound insulation board (16) is arranged on the side box wall of the test box (1), the silencing cups (17) are arranged on the outer wall of the test box (1), and the silencing pieces (18) are obliquely arranged on the cup wall of the silencing cups (17).

6. The production testing device of the English teaching loudspeaker of claim 1, characterized in that: the test box is characterized in that a pull ring is arranged on the cover plate (19), the sealing plate (20) is arranged on the lower surface of the cover plate (19), a sealing rubber ring is arranged on the sealing plate (20), the buckles (21) are arranged on two sides of the cover plate (19), and a clamping block is arranged on the test box (1).

7. The production testing device of the English teaching loudspeaker of claim 1, characterized in that: the active sound-absorbing board (22) is connected in the box body of the test box (1) through support legs, the processor (24) and the sound-absorbing horn (25) are both installed on the active sound-absorbing board (22), and the monitor (26) is located at the top of the base (2).

Technical Field

The invention relates to the technical field of teaching equipment, in particular to a production testing device for an English teaching loudspeaker.

Background

English is the current universal language in the world and is also the second language for most people in China to learn, and the learning of English is very important. At present, basic English learning is mostly carried out in a mode of teaching a teacher in a classroom, and particularly, English word pronunciation is often read by the teacher with students, so that the students are familiar with the words.

At present, with the enlargement of classroom scale, students in back row cannot hear clearly simply by means of the voice of a teacher, and the teaching effect is influenced, so that the teacher often uses a loudspeaker in the classroom to ensure the coverage of sound. The existing loudspeaker for teaching is generally subjected to sampling test in the production process, so that the volume and the tone quality of the loudspeaker are qualified. However, current microphone testing is often difficult to ensure isolation from the external environment, and the microphone is prone to displacement, resulting in test result misalignment. In view of this, we propose a production testing device for english teaching loudspeakers.

Disclosure of Invention

The invention aims to provide a production testing device for a loudspeaker for English teaching, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a production testing device for a loudspeaker for English teaching comprises a testing box, wherein a base is fixedly arranged in the testing box, a pull rod and a sliding seat are connected onto the base in a sliding manner and are fixedly connected onto an end plate, a main body groove and an earphone groove are formed in the sliding seat, an end head is fixedly connected onto the sliding seat, a return spring is fixedly connected onto the end head, a limiting part is fixedly connected onto the return spring, an inserting groove is formed in the testing box and communicated with a limiting groove, a fixing clamping part is fixedly arranged in the limiting groove, a sliding rod is fixedly connected onto the fixing clamping part, a movable clamping part is slidably arranged on the sliding rod, a sound insulation plate and a sound insulation cup are fixedly arranged on the testing box, a sound insulation sheet is fixedly arranged in the sound insulation cup, a cover plate is movably connected onto the testing box, a sealing plate is fixedly arranged on the cover plate, a buckle is fixedly arranged on the cover plate, and fixed mounting has the initiative acoustical panel in the test box, fixed mounting has the signal wheat on the initiative acoustical panel, and signal wheat electric connection is on the treater, treater electric connection has the amortization loudspeaker, fixed mounting has the monitor in the test box.

Preferably, the base is fixedly installed on the bottom surface of the test box, the pull rod is connected in a sliding groove in the side surface of the base, the sliding seat is connected to the upper surface of the base through supporting legs in a sliding mode, and the end plate is provided with a sealing assembly.

Preferably, the main body groove is a rectangular groove, the headset groove is composed of a headset groove and a microphone groove, and cushion layers are arranged on the main body groove and the headset groove.

Preferably, the end is installed in the side of slide, and reset spring installs in the spout of end below, locating part sliding connection is in the spout, and the locating part is provided with the unilateral cambered surface, the spacing groove sets up in the below of slot, and fixed fastener sets up the notch department at the spacing groove, the side at fixed fastener is connected to the slide bar, and the activity fastener is the fusiformis structure.

Preferably, the sound insulation board is arranged on the side box wall of the test box, the silencing cups are arranged on the outer wall of the test box, and the silencing sheets are obliquely arranged on the cup walls of the silencing cups.

Preferably, the cover plate is provided with a pull ring, the sealing plate is arranged on the lower surface of the cover plate, the sealing plate is provided with a sealing rubber ring, the buckles are arranged on two sides of the cover plate, and the test box is provided with a clamping block.

Preferably, the active sound-absorbing plate is connected to the inside of the test box body through support legs, the processor and the sound-absorbing horn are both mounted on the active sound-absorbing plate, and the monitor is located at the top of the base.

Compared with the prior art, the invention has the beneficial effects that: on one hand, a test space of the loudspeaker is formed by the test box with the top cover plate, the box wall of the test box is provided with a passive and active dual combined noise reduction mechanism which respectively absorbs medium-high frequency and low-frequency sound waves, and the cover plate can carry out sealed sound insulation on the top of the test box through the sealing plate, so that the test of the loudspeaker can be carried out under the condition of not being interfered by the outside; on the other hand, the self-locking type sliding seat mechanism is arranged in the test box through the base, the main body groove and the earphone groove are arranged on the self-locking type sliding seat mechanism, and the self-locking type sliding seat mechanism is locked aiming at different parts of the loudspeaker respectively, so that the loudspeaker is kept stable in the test process, particularly, the horn part of the loudspeaker is always symmetrically positioned right below the monitor, and the accuracy of the test result is ensured.

Drawings

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

FIG. 2 is a schematic view of the structure of the slider according to the present invention;

fig. 3 is an enlarged schematic view of the area a in fig. 1.

In the figure: the device comprises a test box 1, a base 2, a pull rod 3, a sliding seat 4, an end plate 5, a main body groove 6, a headset groove 7, an end head 8, a return spring 9, a limiting part 10, a slot 11, a limiting groove 12, a fixed clamping part 13, a sliding rod 14, a movable clamping part 15, a sound insulation plate 16, a silencing cup 17, a silencing sheet 18, a cover plate 19, a sealing plate 20, a buckle 21, an active silencing plate 22, a signal microphone 23, a processor 24, a silencing loudspeaker 25 and a monitor 26.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: a production testing device for an English teaching loudspeaker comprises a testing box 1, wherein a base 2 is fixedly arranged in the testing box 1, a pull rod 3 and a sliding seat 4 are connected on the base 2 in a sliding manner, the pull rod 3 and the sliding seat 4 are fixedly connected on an end plate 5, a main body groove 6 and an earphone groove 7 are arranged on the sliding seat 4, an end 8 is fixedly connected on the sliding seat 4, a reset spring 9 is fixedly connected on the end 8, a limiting part 10 is fixedly connected on the reset spring 9, a slot 11 is arranged on the testing box 1, the slot 11 is communicated with a limiting groove 12, a fixing clamping part 13 is fixedly arranged in the limiting groove 12, a sliding rod 14 is fixedly connected on the fixing clamping part 13, a movable clamping part 15 is slidably arranged on the sliding rod 14, a sound insulation plate 16 and a sound insulation cup 17 are fixedly arranged on the testing box 1, a sound insulation plate 18 is fixedly arranged in the sound insulation cup 17, a cover plate 19 is movably connected on the testing box 1, and a sealing plate 20 is fixedly installed on the cover plate 19, a buckle 21 is fixedly installed on the cover plate 19, an active sound-absorbing plate 22 is fixedly installed in the test box 1, a signal microphone 23 is fixedly installed on the active sound-absorbing plate 22, the signal microphone 23 is electrically connected to a processor 24, the processor 24 is electrically connected to a sound-absorbing horn 25, and a monitor 26 is fixedly installed in the test box 1.

The base 2 is fixedly installed on the bottom surface of the test box 1, the pull rod 3 is connected in a sliding groove in the side surface of the base 2, the sliding seat 4 is connected to the upper surface of the base 2 in a sliding mode through supporting legs, the end plate 5 is provided with a sealing assembly, the base 2 is used for forming a guide structure at the bottom of the test box 1, the sliding seat 4 is installed, the sliding seat 4 is limited and guided through the pull rod 3 and controlled through the end plate 5, the sliding seat 4 can be drawn out of the test box 1 to fixedly place a loudspeaker, and then the loudspeaker is brought into the test box 1 through the sliding seat 4 to be tested;

the main body groove 6 is a rectangular groove, the earphone groove 7 is composed of a headset groove and a microphone groove, cushion layers are arranged on the groove walls of the main body groove 6 and the earphone groove 7, the loudspeaker main body is placed through the main body groove 6, the earphone groove 7 is used for fixing the earphone and the microphone, and the loudspeaker is guaranteed to be stable in the testing process;

an end 8 is arranged on the side surface of the sliding seat 4, a reset spring 9 is arranged in a sliding groove below the end 8, a limiting part 10 is connected in the sliding groove in a sliding manner, the limiting part 10 is provided with a single-side cambered surface, a limiting groove 12 is arranged below a slot 11, a fixed clamping piece 13 is arranged at a notch of the limiting groove 12, a sliding rod 14 is connected on the side surface of the fixed clamping piece 13, a movable clamping piece 15 is in a shuttle-shaped structure, the end 8 is a fixing mechanism of the sliding seat 4, when the sliding seat 4 is pushed into the test box 1, the limiting part 10 firstly retracts into the end 8, then the limiting part is popped out under the elastic force action of the reset spring 9 and is clamped on the fixed clamping piece 13, so that the sliding seat 4 is quickly limited, when the sliding seat 4 needs to be pulled out, the sliding seat 4 is firstly pushed inwards, the limiting part 10 is moved to the rear side of the movable clamping piece 15, then the sliding seat 4 is pulled out, the limiting part 10 drives the movable clamping piece 15 to move to the position of the fixed clamping piece 13, the two components are combined into an arc surface guide structure, so that the limiting piece 10 can be guided in a retracted manner, the end head 8 can be smoothly separated from the slot 11, and the sliding seat 4 can be pulled out for use;

the sound insulation plate 16 is arranged on the side wall of the test box 1, the silencing cups 17 are arranged on the outer wall of the test box 1, the silencing sheets 18 are obliquely arranged on the cup walls of the silencing cups 17, the sound insulation plate 16 and the silencing cups 17 can play a passive noise reduction function, the sound insulation plate 16 directly blocks vibration, the silencing cups 17 can absorb sound waves by virtue of the silencing sheets 18, and the sound insulation plate and the silencing cups mainly reduce high-frequency sound waves;

the cover plate 19 is provided with a pull ring, the sealing plate 20 is arranged on the lower surface of the cover plate 19, the sealing plate 20 is provided with a sealing rubber ring, the buckles 21 are arranged on two sides of the cover plate 19, the test box 1 is provided with a clamping block, the cover plate 19 can carry out sealing and sound insulation on the top of the test box 1 through the sealing plate 20 so as to ensure that the test of the loudspeaker can be carried out under the condition of not being interfered by the outside, and when the cover plate 19 is opened, the active noise reduction mechanism is closed at the same time to carry out the use effect test of the loudspeaker under the condition of being interfered;

the active noise reduction plate 22 is connected to the inside of the test box 1 through support legs, the processor 24 and the noise reduction loudspeaker 25 are both mounted on the active noise reduction plate 22, the monitor 26 is located at the top of the base 2, the active noise reduction mechanism is mounted through the active noise reduction plate 22, sound waves subjected to passive noise reduction treatment can be processed, the sound waves are received by the signal microphone 23 and then transmitted to the processor 24, reverse sound waves are generated through the noise reduction loudspeaker 25, noise reduction is performed on low-frequency noise, and therefore the monitor 26 is used for testing the loudspeaker;

the working principle is as follows: firstly, a base 2 is used for forming a guide structure at the bottom of a test box 1, a slide seat 4 is installed, the slide seat 4 is limited and guided by a pull rod 3 and is controlled by an end plate 5, the slide seat 4 can be drawn out of the test box 1 to fixedly place a loudspeaker, then the loudspeaker is brought into the test box 1 by the slide seat 4, a monitor 26 is used for testing the loudspeaker, the slide seat 4 is used for placing a loudspeaker main body through a main body groove 6, an earphone groove 7 is used for fixing an earphone and a microphone, the loudspeaker is kept stable in the testing process, an end 8 is a fixing mechanism of the slide seat 4, when the slide seat 4 is pushed into the test box 1, a limiting part 10 firstly retracts into the end 8 and then pops out under the elastic force of a return spring 9 and is clamped on a fixing clamping piece 13, so that the slide seat 4 is quickly limited, when the sliding seat 4 needs to be pulled out, the sliding seat 4 is pushed inwards again, so that the limiting part 10 moves to the rear of the movable clamping part 15, then the sliding seat 4 is pulled outwards, the limiting part 10 drives the movable clamping part 15 to move to the position of the fixed clamping part 13, the two parts form an arc surface guide structure, the inward-retracting guide of the limiting part 10 can be carried out, the end head 8 can be smoothly pulled out from the slot 11, then the sliding seat 4 is pulled out for use, the sound insulation plate 16 and the sound insulation cup 17 can play a role of passive noise reduction, the sound insulation plate 16 directly carries out vibration separation, the sound insulation cup 17 can absorb sound waves by virtue of the sound insulation sheet 18, the two parts mainly carry out noise reduction of high-frequency sound waves, the active noise reduction mechanism is installed through the active noise reduction plate 22, the sound waves after the passive noise reduction can be processed, the sound waves are received by the signal microphone 23, and then signals are transmitted to the processor 24, and produce reverse sound wave through amortization loudspeaker 25, fallen to making an uproar to low frequency noise, apron 19 can carry out the sealed sound insulation at test box 1 top through closing plate 20 to guarantee that the test of megaphone can go on under the condition that does not receive external disturbance, and when opening apron 19, close the initiative simultaneously and fall the mechanism of making an uproar, carry out the audio amplifier and receive the result of use test under the interference condition.

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.