A phase plug for preventing midrange interference

Abstract

The utility model relates to the field of phase plug, concretely relates to a phase plug of preventing medium tone position interference, including base and phase plug body, the base upper end face is opened with annular groove, phase plug body is installed with the way of sliding fit in annular groove, the base outside wall is opened with a plurality of through -hole from top to bottom along its circumferential direction, and the through -hole is arranged with side position inserting rod, and the inside end of side position inserting rod is arranged in the base outside wall through the way of inserting, and the between side position inserting rod is connected through annular frame, the utility model discloses adopt through -hole and base structure to the position of phase plug body can be adjusted up and down, make phase plug body suitable for a variety of situations, further improve the universality of device use function.

Description

Technical Field

[0001] This utility model relates to the field of phase plugs, specifically to a phase plug that prevents interference in mid-tones. Background Technology

[0002] In professional amplification equipment, a mid-frequency horn mechanism is typically used to increase the sound pressure level. The horn increases the load on the driver, thereby significantly improving amplification efficiency and thus significantly increasing the sound pressure level. However, sound waves do not diffuse directly outward; some sound waves are reflected by the diaphragm before reaching the listener's ear. This reflection causes interference between the reflected sound waves and the directly diffused sound waves, resulting in significant standing wave distortion and affecting the fidelity of the sound.

[0003] Chinese patent discloses a phase plug for speakers (authorization announcement number CN211267045U). This patented technology involves "a mounting ring fixedly connected to the outside of the speaker. The fixing ring engages with the upper end face of the mounting ring via a snap-fit ​​arc plate. Disassembly is simple: rotating the fixing ring disengages the snap-fit ​​arc plate from the snap-fit ​​groove, making the phase plug easy to install and remove. Furthermore, the design of the wrapping ring hides the mounting ring at the bottom of the phase plug body, making the phase plug body and the mounting ring integral." This solves the problem that "the phase plug is fixed to the outside of the speaker by four screws, which easily leads to dust accumulation in the countersunk holes where the screws are stored. This creates dust dead zones during speaker cleaning, making them difficult to clean. Furthermore, using water for cleaning can cause the screws to rust, making them difficult to unscrew and damaging their appearance." However, this patent still has the following problems:

[0004] In this patent, the phase plug is fixedly connected and its height cannot be adjusted according to actual needs. Furthermore, the base of the phase plug is connected by bolts, and the vibration generated when the speaker is working makes the bolts easy to loosen. Also, when the phase plug is not in use, dust easily accumulates on its surface, affecting its functionality. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a phase plug to prevent mid-range interference, including a base and a phase plug body. The upper surface of the base is provided with an annular groove, and the phase plug body is installed in the annular groove by sliding fit. The outer wall of the base is provided with multiple through holes from top to bottom along its circumferential direction. Side insertion rods are arranged in the through holes. The inner end of the side insertion rods is arranged on the outer wall of the base by insertion. The side insertion rods are connected to each other by an annular frame.

[0006] Preferably, the upper end face of the ring frame is provided with multiple upper slots along its circumferential direction, an upper spring rod is installed at the bottom of the upper slot, an annular sleeve is installed on the upper end face of the upper spring rod, and a side insertion rod is arranged on the inner end of the annular sleeve.

[0007] Preferably, a plurality of sleeves are installed on the outer end of the phase plug body along its circumferential direction, a plurality of lower screws are installed on the inner sidewall of the sleeves along its circumferential direction, and an annular sleeve is arranged below the lower screws.

[0008] Preferably, the base is equipped with a base plate at the bottom, and the upper surface of the base plate has multiple screw holes along its circumferential direction.

[0009] Preferably, a plurality of side seats are installed on the outer side of the base plate along its circumferential direction. A first spring is installed on the inner and outer sides of the side seats. A first slider is installed on the inner side of the first spring. An L-shaped frame is installed on the upper surface of the first slider. A positioning plate is installed on the inner side of the L-shaped frame. A positioning rod is installed on the inner side of the positioning plate. The positioning rod is inserted into the outer wall of the base.

[0010] Preferably, an elastic rope is installed on the upper end face of the phase plug body, and an end cap is installed on the other end of the elastic rope. The end cap is installed on the upper end face of the phase plug body by a snap-fit ​​method.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. This utility model adopts a through hole and base structure, which allows the position of the phase plug body to be adjusted up and down, making the phase plug body suitable for various situations and further improving the versatility of the device's functions.

[0013] 2. This utility model adopts an end cap structure, which provides dust protection for the upper end of the phase plug body and prevents dust accumulation on its surface from affecting its performance. Attached Figure Description

[0014] Figure 1 This is a front view of a phase plug structure for preventing mid-tone interference provided in an embodiment of this application;

[0015] Figure 2 This is a cross-sectional view of a phase plug for preventing mid-tone interference provided in an embodiment of this application;

[0016] Figure 3 This is a top cross-sectional view of a phase plug for preventing mid-tone interference provided in an embodiment of this application;

[0017] Figure 4 This is a sectional bottom view of a phase plug for preventing mid-tone interference provided in an embodiment of this application;

[0018] Figure 5 This application provides a phase plug for preventing mid-tone interference. Figure 2 A magnified view of a portion of region A in the middle;

[0019] In the diagram: 1. Base; 2. Phase plug body; 11. Through hole; 12. Side insertion rod; 13. Ring frame; 14. Upper spring rod; 15. Ring sleeve; 16. Sleeve; 17. Lower screw; 18. Base plate; 19. Screw hole; 21. Side seat; 22. First spring; 23. Positioning plate; 24. Positioning insertion rod; 25. Elastic rope; 26. End cap. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0021] Please see Figures 1-5 This embodiment provides a phase plug to prevent mid-range interference, including a base 1 and a phase plug body 2. The upper surface of the base 1 has an annular groove, and the phase plug body 2 is installed in the annular groove by a sliding fit. The outer wall of the base 1 has multiple through holes 11 from top to bottom along its circumferential direction. Side insertion rods 12 are arranged in the through holes 11. The inner end of the side insertion rod 12 is arranged on the outer wall of the base 1 by an insertion. The side insertion rods 12 are connected to each other by an annular frame 13. During operation, the side insertion rods 12 are inserted into the outer wall of the phase plug body 2 to limit and fix it. The side insertion rods 12 are connected to the annular frame 13 by a sliding fit. Moving the side insertion rods 12 outward can adjust the position of the phase plug body 2 up and down, so that the phase plug body 2 is applicable to various situations, further improving the versatility of the device.

[0022] The upper end face of the ring frame 13 is provided with multiple upper slots along its circumferential direction. An upper spring rod 14 is installed at the bottom of the upper slot. An annular sleeve 15 is installed on the upper end face of the upper spring rod 14. A side insertion rod 12 is arranged on the inner end of the annular sleeve 15. When working, the upper spring rod 14 drives the annular sleeve 15 to move downward. The annular sleeve 15 plays a role in blocking the side insertion rod 12 and preventing the side insertion rod 12 from moving outward and sliding out.

[0023] Multiple sleeves 16 are installed on the outer side of the phase plug body 2 along its circumferential direction. Multiple lower screws 17 are installed on the inner side wall of the sleeves 16 along its circumferential direction. An annular sleeve 15 is arranged below the lower screws 17. During operation, rotating the lower screws 17 causes them to move up and down. The adjusting screw abuts against the upper end face of the annular sleeve 15, thereby limiting the position of the annular sleeve 15 and preventing the annular sleeve 15 from shaking up and down.

[0024] The base 1 has a base plate 18 installed at its bottom. The upper surface of the base plate 18 has multiple screw holes 19 along its circumferential direction. During operation, the screw hole 19 structure is used to facilitate the installation and fixing of the base 1 by fastening bolts.

[0025] Multiple side seats 21 are installed on the outer side of the base plate 18 along its circumferential direction. A first spring 22 is installed on the inner and outer sides of the side seats 21. A first slider is installed on the inner side of the first spring 22. An L-shaped frame is installed on the upper surface of the first slider. A positioning plate 23 is installed on the inner side of the L-shaped frame. A positioning rod 24 is installed on the inner side of the positioning plate 23. The positioning rod 24 is inserted into the outer side wall of the base 1. During operation, the positioning plate 23 is arranged on the upper end of the fastening bolt, thereby playing a certain limiting role on the fastening bolt and preventing the fastening bolt from loosening.

[0026] An elastic rope 25 is installed on the upper end face of the phase plug body 2, and an end cap 26 is installed on the other end of the elastic rope 25. The end cap 26 is installed on the upper end face of the phase plug body 2 by snap-fit. During operation, the end cap 26 protects the upper end of the phase plug body 2 from dust and prevents dust from accumulating on its surface, thus affecting the performance.

[0027] In actual operation, the side insertion rod 12 is inserted into the outer wall of the phase plug body 2 to limit and fix it. The side insertion rod 12 is connected to the ring frame 13 through a sliding fit. Moving the side insertion rod 12 outward can adjust the position of the phase plug body 2 up and down, making the phase plug body 2 suitable for various situations and further improving the versatility of the device's functions.

[0028] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A phase plug for preventing mid-tone interference, comprising a base (1) and a phase plug body (2), characterized in that, The upper surface of the base (1) is provided with an annular groove, and the phase plug body (2) is installed in the annular groove by sliding fit. The outer wall of the base (1) is provided with multiple through holes (11) from top to bottom along its circumferential direction. Side insertion rods (12) are arranged in the through holes (11). The inner end of the side insertion rods (12) is arranged on the outer wall of the base (1) by insertion. The side insertion rods (12) are connected to each other by an annular frame (13).

2. A phase plug for preventing mid-tone interference according to claim 1, characterized in that... The upper end face of the ring frame (13) is provided with multiple upper slots along its circumferential direction. An upper spring rod (14) is installed at the bottom of the upper slot. An annular sleeve (15) is installed on the upper end face of the upper spring rod (14). A side insertion rod (12) is arranged on the inner end of the annular sleeve (15).

3. A phase plug for preventing mid-tone interference according to claim 1, characterized in that, Multiple sleeves (16) are installed on the outer side of the phase plug body (2) along its circumferential direction. Multiple lower screws (17) are installed on the inner side wall of the sleeves (16) along its circumferential direction. An annular sleeve (15) is arranged below the lower screws (17).

4. A phase plug for preventing mid-tone interference according to claim 1, characterized in that, The base (1) has a base plate (18) installed at the bottom, and the upper surface of the base plate (18) has multiple screw holes (19) along its circumferential direction.

5. A phase plug for preventing mid-tone interference according to claim 4, characterized in that, Multiple side seats (21) are installed on the outer side of the base plate (18) along its circumferential direction. A first spring (22) is installed on the inner and outer sides of the side seats (21). A first slider is installed on the inner side of the first spring (22). An L-shaped frame is installed on the upper surface of the first slider. A positioning plate (23) is installed on the inner side of the L-shaped frame. A positioning rod (24) is installed on the inner side of the positioning plate (23). The positioning rod (24) is inserted into the outer wall of the base (1).

6. A phase plug for preventing mid-tone interference according to claim 1, characterized in that, An elastic rope (25) is installed on the upper end face of the phase plug body (2), and an end cap (26) is installed on the other end of the elastic rope (25). The end cap (26) is installed on the upper end face of the phase plug body (2) by snap-fit.

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