Sound guide shell structure of strong sound box

Abstract

The utility model relates to the field of sound boxes, in particular to a sound guide shell structure of a strong sound box, which is characterized by comprising a box body with an open front wall, a front cover plate and a loudspeaker assembly, the front wall of the front cover plate is further sunken backwards to form at least one sound amplification tube with an opening in the rear end, the front cover plate covers the opening of the box body and enables the sound amplification tube to be communicated with the inner cavity of the box body, and the loudspeaker assembly is arranged in the sound amplification tube. According to the utility model, the forward sound diffusion amount of the loudspeaker can be greatly increased, the sound reflection amount can be effectively increased, a very stable and reliable strong sound effect can be realized, and great troubles can be solved for clients with strong sound requirements.

Description

Technical Field

[0001] This utility model relates to the field of speakers, and in particular to a sound-conducting shell structure for a speaker. Background Technology

[0002] Currently, most speaker enclosures consist of a cabinet, a dust filter, and a speaker. The front wall of the cabinet has mounting holes into which the speaker is installed, and the dust filter covers the opening of these holes. Because the sound emitted by the speaker diffuses in all directions, and the speaker is simply mounted in the cabinet, the amount of sound diffused forward is relatively limited. Furthermore, after the speaker is installed, it forms a relatively closed cavity inside the cabinet, which hinders sound propagation and thus limits the amount of sound reflected forward. Therefore, existing speaker enclosures struggle to achieve a powerful sound effect, causing significant frustration for customers who require high-volume sound. Therefore, it is essential to redesign the speaker enclosure structure. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned problems and shortcomings, and to provide a sound-guiding shell structure for a high-powered speaker. This sound-guiding shell structure can greatly increase the forward sound diffusion of the speaker, and it can also effectively increase the sound reflection. It can achieve a very stable and reliable high-powered sound effect, and can solve a great problem for customers who have a need for strong sound.

[0004] The technical solution of this utility model is implemented as follows:

[0005] A sound-conducting housing structure for a high-powered speaker enclosure is characterized by comprising a cabinet with an open front wall, a front cover plate, and a speaker assembly. The front wall of the front cover plate is recessed rearward to form a sound tube with a closed rear end. The front wall of the front cover plate is also recessed rearward to form at least one sound tube with an open rear end. The front cover plate covers the opening of the cabinet and connects the sound tube to the inner cavity of the cabinet. The speaker assembly is disposed in the sound tube.

[0006] Preferably, the megaphone is shaped like a horn, wider at the front and narrower at the back; the megaphone tube is shaped like a horn, wider at the front and narrower at the back.

[0007] Preferably, the middle part of the closed end of the megaphone is recessed into the megaphone to form a convex cone.

[0008] Preferably, the front cover, the megaphone, and the megaphone tube are integrally formed.

[0009] Preferably, the outer wall of the housing is provided with at least one connecting screw hole, and the outer wall of the housing is also provided with an annular isolation plate arranged around the opening of the connecting screw hole.

[0010] Preferably, the outer wall of the housing is provided with an insert hole, in which a metal tube with internal threads is inserted. The internal threads of the metal tube form a connecting screw hole. Two helical toothed rings are provided on the outer wall of the metal tube, and the two helical toothed rings are rotated in opposite directions and are also inserted into the wall of the insert hole.

[0011] Preferably, a positioning groove is provided on the outer wall of the housing, the connecting screw hole is located in the middle of the bottom of the positioning groove, the annular isolation piece is embedded in the positioning groove, and the outer wall of the annular isolation piece protrudes out of the positioning groove.

[0012] Preferably, at least two mounting posts are provided on the inner wall of the annular isolation plate, and each mounting post is embedded in the bottom of the positioning groove.

[0013] Preferably, a battery compartment is provided on the bottom surface of the housing, and a cover plate is provided on the opening of the battery compartment. At least two locking screws are inserted through the cover plate, and the threaded end of the locking screw passes through the cover plate and is screwed onto the housing. A folding handle is provided on the nut end of the locking screw.

[0014] Preferably, the folding handle is an arc-shaped strip, and the two ends of the folding handle are bent towards each other and rotatably fitted into the two side walls of the nut end of the locking screw.

[0015] The beneficial effects of this utility model are as follows: In this sound guide housing structure, a rear-end closed amplifier tube is made on the front cover plate for mounting the speaker assembly. This amplifier tube can provide a very stable and effective sound amplification effect for the speaker assembly, which can greatly increase the forward sound diffusion of the speaker. A rear-end open amplifier tube is made on the front cover plate and connected to the inner cavity of the cabinet. This amplifier tube can guide and amplify the sound transmitted from the speaker assembly into the inner cavity forward, which can effectively increase the forward reflection of the sound. In this way, the sound guide housing structure can achieve a very stable and reliable strong sound effect, which can solve a great problem for customers with strong sound requirements. Attached Figure Description

[0016] Figure 1 This is one of the three-dimensional structural diagrams of the sound-conducting shell structure in this utility model.

[0017] Figure 2 This is the second three-dimensional structural diagram of the sound-conducting shell structure in this utility model.

[0018] Figure 3 This utility model Figure 2 A magnified structural diagram of part A in the middle.

[0019] Figure 4 This is a schematic diagram of the sound-conducting shell structure in the open state of this utility model.

[0020] Figure 5 This is one of the disassembled structural diagrams of the sound-conducting shell structure in this utility model.

[0021] Figure 6 This utility model Figure 5 A magnified structural diagram of part B.

[0022] Figure 7 This utility model Figure 5 A magnified structural diagram of section C.

[0023] Figure 8 This is the second schematic diagram showing the disassembled structure of the sound-conducting shell in this utility model.

[0024] Figure 9 This utility model Figure 8 A magnified structural diagram of part D in the middle.

[0025] Figure 10 This is a three-dimensional structural diagram of the front cover plate in this utility model.

[0026] Figure 11 This is a cross-sectional view of the front cover plate in this utility model.

[0027] Figure 12 This is a three-dimensional structural diagram of the speaker assembly in this utility model.

[0028] Figure 13 This is a three-dimensional structural diagram of the annular separator in this utility model.

[0029] Figure 14 This is a three-dimensional structural diagram of the metal tube in this utility model. Detailed Implementation

[0030] like Figure 1 , Figure 4 and Figure 5 As shown, the sound-conducting shell structure of the high-powered speaker according to this utility model includes a box body 1 with an open front wall, a front cover plate 2, and a speaker assembly 3. The front wall of the front cover plate 2 is recessed in the middle to form a rear-end closed amplifier tube 21. The front wall of the front cover plate 2 is also recessed in the rear to form at least one rear-end open amplifier tube 22. The front cover plate 2 covers the opening of the box body 1 and connects the amplifier tube 22 to the inner cavity 11 of the box body 1. The speaker assembly 3 is disposed in the amplifier tube 21.

[0031] In this sound guide housing structure, a rear-end closed amplifier tube 21 is made on the front cover plate 2 for mounting the speaker assembly 3. This amplifier tube 21 can provide a very stable and effective sound amplification effect for the speaker assembly 3, which can greatly increase the forward sound diffusion of the speaker. A rear-end open amplifier tube 22 is made on the front cover plate 2 and is connected to the inner cavity 11 of the cabinet 1. This amplifier tube 22 can guide and amplify the sound transmitted from the speaker assembly 3 into the inner cavity 11 forward, which can effectively increase the forward reflection of the sound. In this way, the sound guide housing structure can achieve a very stable and reliable strong sound effect, which can solve a lot of problems for customers with strong sound requirements.

[0032] like Figure 1 , Figure 4 and Figure 5 As shown, the top cover of the opening of the housing 1 is equipped with a dustproof mesh cover 10, which covers the front cover plate 2 and also covers the front end of the amplifier tube 21 and the front end of the amplifier pipe 22. This not only meets the sound output requirements, but also has a dustproof effect, which can extend the service life.

[0033] like Figure 5 , Figure 10 and Figure 11 As shown, two amplifier tubes 22 are provided at the upper end of the front cover plate 2, and both amplifier tubes 22 are short, flat tubes that extend laterally. The two amplifier tubes 22 are arranged side by side. A amplifier tube 22 is provided at the lower end of the front cover plate 2, and this amplifier tube 22 is a long, flat tube that extends laterally. This not only has a compact structure, but also achieves a very good sound amplification effect, thus meeting the needs of practical use very well.

[0034] like Figure 5 and Figure 12 As shown, the sound-emitting end of the speaker assembly 3 faces rearward, and a bowl-shaped sound guide cover 20 with a rearward opening is installed on the sound-emitting end of the speaker assembly 3, which can further enhance the sound effect.

[0035] In actual use, the opening end of the enclosure 1 can be oriented to other directions, so that the sound output ends of the amplifier tube 21 and the amplifier pipe 22 are also oriented to other directions; this not only allows for the rapid acquisition of a strong sound enclosure with the sound output end facing other directions, but also facilitates the fulfillment of different usage needs.

[0036] like Figure 1 As shown, in the actual manufacturing process, a strap buckle 30, a handle 40, a WiFi antenna, a Beidou antenna, etc. can be set on the box body 1, which can facilitate meeting more usage needs.

[0037] like Figure 4 , Figure 5 , Figure 10 and Figure 11 As shown, the megaphone 21 is shaped like a horn, wider at the front and narrower at the back; the megaphone tube 22 is also shaped like a horn, wider at the front and narrower at the back. This design of the megaphone 21 and megaphone tube 22 not only provides a simple and easy-to-manufacture structure but also achieves excellent sound amplification, thus ensuring a stable and reliable high-powered sound effect.

[0038] like Figure 4 , Figure 10 and Figure 11 As shown, to facilitate the arrangement of the wires supplying power to the speaker assembly 3 (not shown in the figure), a through hole 211 can be made on the closed end of the amplifier tube 21, just large enough for the wires to pass through. This not only facilitates the arrangement of the wires but also effectively reduces the impact on the sound effect.

[0039] like Figure 4 , Figure 5 , Figure 11 and Figure 12 As shown, the rear end of the speaker assembly 3 is provided with several screws 31, and the front wall of the closed end of the amplifier tube 21 is provided with a number of protruding tubes 212 equal to the number of screws 31, with the position of each protruding tube 212 corresponding to the position of each screw 31. The rear wall of the speaker assembly 3 abuts against the front end face of the protruding tube 212, and each screw 31 passes through the corresponding protruding tube 212 and the closed end of the amplifier tube 21 and is placed behind the amplifier tube 21. A locking nut (not shown in the figure) is screwed onto each screw 31 behind the amplifier tube 21. This allows the speaker assembly 3 to be stably and reliably positioned in the amplifier tube 21, thus meeting the normal installation and use requirements of the speaker assembly 3.

[0040] like Figure 4 and Figure 11 As shown, a concave cone portion 210 is formed in the middle of the closed end of the megaphone 21. The concave cone portion 210 can further enhance the sound amplification performance, thereby helping to further improve the sound effect of the loud sound, and thus helping to further improve the reliability and applicability of the sound guide shell structure.

[0041] like Figure 10 and Figure 11 As shown, the front cover 2, the megaphone 21, and the megaphone tube 22 are integrally formed. This not only facilitates mass production but also makes the structure more stable and reliable, thereby producing a more stable and reliable loud sound effect, which in turn helps to further improve the reliability and applicability of the sound guide shell structure.

[0042] like Figures 2 to 6As shown, the outer wall of the housing 1 is provided with at least one connecting screw hole 12, and the outer wall of the housing 1 is also provided with an annular isolation plate 13 arranged around the opening of the connecting screw hole 12. The connecting screw hole 12 provides a reliable fixing position when the user needs to assemble other components (e.g., support frame, extension frame, and external antenna, etc.) on the housing 1. The annular isolation plate 13 isolates other components from the outer wall of the housing 1 when connecting them to the connecting screw hole 12, thereby preventing other components from scratching the outer wall of the housing 1, which provides protection.

[0043] like Figures 5 to 7 , Figure 14 As shown, the outer wall of the housing 1 has an insertion hole 14, into which a metal tube 15 with internal threads is inserted. The internal threads of the metal tube 15 form a connecting screw hole 12. Two helical toothed rings 151 are provided on the outer wall of the metal tube 15, with opposite directions of rotation, and are fitted into the wall of the insertion hole 14. The use of a metal tube 15 provides a high-strength connecting screw hole 12; the two helical toothed rings 151 with opposite directions of rotation provide stable positioning of the metal tube 15, thus ensuring high stability of the connecting screw hole 12. This helps to further improve the stability and reliability of connections to other components.

[0044] The metal tube 15 can be made of stainless steel, aluminum alloy or other hard metal tubes, which can meet the requirements of stable locking.

[0045] like Figures 5 to 7 As shown, a positioning groove 16 is provided on the outer wall of the housing 1. The connecting screw hole 12 is located in the middle of the bottom of the positioning groove 16. The annular isolation piece 13 is embedded in the positioning groove 16, with its outer wall protruding outside the positioning groove 16. This allows the positioning groove 16 to accurately and stably restrict the annular isolation piece 13, thereby enabling it to exert a more stable and reliable isolation effect, and further improving the reliability and applicability of the sound-conducting housing structure.

[0046] like Figures 5 to 7 , Figure 13 As shown, at least two mounting posts 131 are provided on the inner wall of the annular isolation plate 13, and each mounting post 131 is embedded in the bottom of the positioning groove 16. This facilitates the stable installation and positioning of the annular isolation plate 13, which helps to improve the efficiency and stability of the assembly of the sound guide housing structure.

[0047] In actual manufacturing, the annular isolation sheet 13 can be made of rigid plastic, soft plastic, or rubber, all of which can serve an isolation function.

[0048] like Figure 2 and Figure 3 As shown, when the annular isolation plate 13 is on the bottom surface of the box 1, it can be used as a support foot to separate the bottom surface of the box 1 from the supporting surface on which the box 1 is placed, thus preventing the bottom surface of the box 1 from being scratched.

[0049] like Figures 2 to 4 , Figure 8 and Figure 9 As shown, a battery compartment 17 is provided on the bottom surface of the housing 1. A cover plate 18 is placed over the opening of the battery compartment 17. At least two locking screws 19 are threaded through the cover plate 18 and screwed onto the housing 1 with the threaded ends of the locking screws 19 passing through the cover plate 18. A folding handle 191 is provided on the nut end of the locking screws 19. The folding handle 191 provides a working position for manually rotating the locking screws 19, which eliminates the need for other tools to disassemble and install the locking screws 19, thereby improving the convenience of opening and closing the cover plate 18 and thus improving the convenience of battery replacement. The folding handle 191 can be folded into the bottom of the housing 1 when not in use, so as to avoid the folding handle 191 affecting the normal placement of the housing 1.

[0050] like Figure 4 As shown, on the bottom surface of the housing 1, in order to improve the structural strength of the screw connection of the locking screw 19, the above-mentioned structure of using metal tube 15 to form the connecting screw hole 12 can be used to make the screw hole for the locking screw 19 to be screwed in, so as to provide a very stable and reliable screw connection for the locking screw 19.

[0051] like Figure 2 and Figure 3 As shown, when the annular isolation plate 13 contacts the supporting surface of the cabinet 1, a certain space is formed between the bottom surface of the cabinet 1 and the supporting surface. This space can be used to store the folded handle 191 after folding, which can prevent the folded handle 191 from affecting the placement of the cabinet 1, thereby meeting the normal use requirements of the high-powered speaker.

[0052] like Figure 8 As shown, a positioning ring groove 171 is formed on the edge of the opening of the battery compartment 17. The four sides of the cover plate 18 are embedded in the positioning ring groove 171, and a sealing ring 172 is sandwiched between the cover plate 18 and the bottom of the positioning ring groove 171. This not only enables the cover plate 18 to be positioned quickly, accurately, and stably, but also improves the sealing performance of the cover plate 18 on the battery compartment 17, thereby providing better protection for the battery.

[0053] like Figure 3 and Figure 9As shown, a groove 181 is provided on the bottom surface of the cover plate 18, and the nut end of the locking screw 19 is placed in the groove 181. The use of the groove 181, along with the positioning ring groove 171, can prevent the nut end of the locking screw 19 and the folding handle 191 from protruding too much from the bottom surface of the box 1, thereby further reducing the related adverse effects and better meeting the needs of actual use.

[0054] like Figure 9 As shown, the folding handle 191 is an arc-shaped strip. The two ends of the folding handle 191 are bent towards each other and rotatably fitted onto the side walls of the nut end of the locking screw 19. This folding handle 191 has a very simple and reliable structure, which not only facilitates manufacturing and installation but also allows for easy rotation and folding, thereby improving operational convenience and further enhancing the ease of battery replacement.

Claims

1. A sound guiding housing structure of a strong sound box, characterized by: The loudspeaker cabinet (1) comprises a front wall opening, a front cover plate (2) and a loudspeaker assembly (3), wherein the front wall of the front cover plate (2) is recessed in the middle part to form a back-end closed sound tube (21), and at least one back-end open sound pipe (22) is formed by further recessing the front wall of the front cover plate (2) backward, the front cover plate (2) is covered on the opening of the cabinet (1), and the sound pipe (22) is connected with the inner cavity (11) of the cabinet (1), and the loudspeaker assembly (3) is arranged in the sound tube (21).

2. The sound guide housing structure of claim 1, wherein: The sound tube (21) is trumpet-shaped with large front and small back, and the sound pipe (22) is trumpet-shaped with large front and small back.

3. The sound guide housing structure of claim 1, wherein: The middle part of the closed end of the sound tube (21) is recessed inward to form a convex cone part (210).

4. The sound guide housing structure of claim 1, wherein: The front cover plate (2), the sound tube (21) and the sound pipe (22) are integrally formed.

5. The sound guide housing structure of claim 1, wherein: At least one connecting screw hole (12) is arranged on the outer wall of the cabinet (1), and an annular isolation piece (13) is arranged around the connecting screw hole (12).

6. The sound guide housing structure of claim 5, wherein: A mounting hole (14) is arranged on the outer wall of the cabinet (1), a metal pipe (15) with internal threads is mounted in the mounting hole (14), the internal threads of the metal pipe (15) constitute the connecting screw hole (12), two inclined tooth rings (151) are arranged on the outer wall of the metal pipe (15), the rotation directions of the two inclined tooth rings (151) are opposite, and the two inclined tooth rings (151) are mounted on the hole wall of the mounting hole (14).

7. The sound guide housing structure of the loudspeaker according to claim 5 or 6, wherein: A positioning groove (16) is arranged on the outer wall of the cabinet (1), the connecting screw hole (12) is located in the middle part of the groove bottom of the positioning groove (16), the annular isolation piece (13) is mounted in the positioning groove (16), and the outer wall of the annular isolation piece (13) protrudes outside the positioning groove (16).

8. The sound guide housing structure of claim 7, wherein: At least two mounting columns (131) are arranged on the inner wall of the annular isolation piece (13), and each mounting column (131) is mounted on the groove bottom of the positioning groove (16).

9. The sound guide housing structure of the loudspeaker according to claim 1, wherein: A battery compartment (17) is arranged on the bottom surface of the cabinet (1), a cover plate (18) is arranged on the compartment opening of the battery compartment (17), at least two locking screws (19) are arranged on the cover plate (18), the threaded ends of the locking screws (19) are screwed on the cabinet (1) after penetrating through the cover plate (18), and a folding handle (191) is arranged on the nut end of the locking screw (19).

10. The sound guide housing structure of claim 9, wherein: The folding handle (191) is an arc-shaped strip, and the two ends of the folding handle (191) are reversely bent and rotatably mounted on the two side walls of the nut end of the locking screw (19).

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