Adjustable portable sound system for outdoor use

Abstract

This utility model discloses an adjustable portable speaker for outdoor use, relating to the field of audio technology. It includes a speaker body, with symmetrically mounted casters at one end of the bottom and symmetrically mounted support blocks at the other end. A side plate is mounted on one end of the speaker body, with an adjustable pull rod slidably connected to the upper end of the side plate. A limiting mechanism, which cooperates with the pull rod to limit the speaker body, is rotatably connected to the lower end of the side plate. A sliding hole is provided at the top of the side plate to provide sliding space for the pull rod. The pull rod includes an outer rod that slides in the sliding hole, and a sliding groove is provided inside the outer rod, with an inner rod slidably connected in the groove. In this utility model, the pull rod and limiting mechanism trigger the support and fixation of the speaker when the handle is folded away. Combined with the support blocks, this forms a double fixation. Compared to manual adjustment, bending over, or foot-operated step-by-step operation, it eliminates the need for bending over and allows for one-handed, one-button operation, making it simple and quick to use.

Description

Technical Field

[0001] This utility model relates to the field of audio technology, and in particular to an adjustable portable speaker for outdoor use. Background Technology

[0002] As people's living standards improve, singing and dancing are becoming more and more popular. Using outdoor speakers to play rhythmic music in outdoor settings, events, and gatherings can increase participation in group dances and thus enhance the event experience.

[0003] A search revealed Chinese patent publication number CN222582549U, which discloses a portable outdoor speaker. The speaker includes a cabinet with a panel on the top and a speaker board on the front. The bottom of the cabinet has legs and a lifting caster assembly. A main control module is installed inside the cabinet. The lifting caster assembly includes a base with casters at the bottom and a sleeve on the top. The top of the sleeve is fixed to the bottom of the cabinet. The height of the casters is adjusted by raising and lowering the base, allowing the bottom of the casters to be higher or lower than the bottom of the legs. The speaker's cabinet design is compact and robust, ensuring sound quality while reducing size and weight, making the speaker easier to carry. The innovative lifting caster assembly design allows users to easily adjust the speaker's mobility.

[0004] However, during use, it was found that the above-mentioned speakers required bending over to operate during adjustment, which increased the burden on the staff's back. Although there are foot pedal speakers on the market, both manual and foot pedal speakers use a step-by-step operation to adjust the rollers, which cannot achieve one-button operation. The operation is cumbersome and time-consuming. Summary of the Invention

[0005] The purpose of this utility model is to provide an adjustable portable speaker for outdoor use in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable portable speaker for outdoor use, comprising a speaker body, with rollers symmetrically mounted on one end of the bottom of the speaker body, and support blocks symmetrically mounted on the other end of the bottom of the speaker body, a side plate mounted on one end of the speaker body, an adjustable pull rod slidably connected to the upper end of the side plate, and a limiting mechanism that cooperates with the pull rod to limit the movement of the speaker body at the lower end of the side plate.

[0007] Preferably, the top of the side plate has a sliding hole for providing sliding space for the pull rod. The pull rod includes an outer rod that slides in the sliding hole. The outer rod has a sliding groove inside. An inner rod is slidably connected in the sliding groove. Compression springs are connected between the bottom sides of the inner rod and the outer rod. Slidable positioning blocks are provided at the bottom of both sides of the inner rod. The side plate has two sets of positioning grooves that are adapted to the size of the positioning blocks inside.

[0008] Preferably, a pressure block is installed on the top of the inner rod, and a connection hole adapted to the size of the pressure block is opened on the top of the outer rod.

[0009] Preferably, the bottom of both sides of the inner rod is provided with limiting holes adapted to the size of the positioning block, and guide blocks are installed at both ends of the limiting holes. The two ends of the positioning block are provided with downward inclined guide grooves adapted to the size of the guide blocks. The bottom of both sides of the outer rod is provided with through holes adapted to the size of the positioning blocks.

[0010] Preferably, grooves are provided on both sides of the bottom of the outer rod, and guide wheels are rotatably installed in the grooves.

[0011] Preferably, the bottom of the side plate is provided with a storage groove to provide rotation space for the limiting mechanism. The limiting mechanism includes rotating rods rotatably installed on both sides of the storage groove. An abutment rod that presses against the guide wheel is installed in the middle of the rotating rod. Both ends of the rotating rod are fitted with torsion springs that are connected to the abutment rod and the storage groove. A support rod is installed at the bottom of the abutment rod.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: In this application, a pull rod and a limiting mechanism are set up to trigger the support and fixing sound when the handle is stored. Together with the support block, they form a double fixation. Compared with manual adjustment, bending over or foot pedal step-by-step operation, there is no need to bend over. It can be operated with one hand and one button, which is simple and fast. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown; Figure 2 A cross-sectional view of the internal structure of the side plate according to an embodiment of the present invention is shown; Figure 3 A cross-sectional view of the internal structure of the outer rod according to an embodiment of the present invention is shown; Figure 4 A cross-sectional view of the lower end portion of the pull rod provided according to an embodiment of the present utility model is shown; Figure 5 A cross-sectional view of a mobile mode switching method according to an embodiment of the present invention is shown; Figure 6 The present invention provides an embodiment of the present invention. Figure 2 Enlarged view of the structure at point A in the middle.

[0014] Legend: 1. Speaker body; 2. Roller; 3. Support block; 4. Side plate; 401. Sliding hole; 402. Positioning groove; 403. Storage groove; 5. Pull rod; 6. Limiting mechanism; 601. Rotating rod; 602. Abutting rod; 603. Torsion spring; 604. Support rod; 7. Outer rod; 701. Sliding groove; 702. Connecting hole; 703. Through hole; 704. Groove; 8. Inner rod; 801. Limiting hole; 9. Compression spring; 10. Positioning block; 1001. Guide groove; 11. Pressure block; 12. Guide block; 13. Guide wheel. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1 , Figure 2 and Figure 5 This utility model provides a technical solution: an adjustable portable speaker for outdoor use, including a speaker body 1, with rollers 2 symmetrically mounted on one end of the bottom of the speaker body 1, and support blocks 3 symmetrically mounted on the other end of the bottom of the speaker body 1, a side plate 4 mounted on one end of the speaker body 1, an adjustable pull rod 5 slidably connected to the upper end of the side plate 4, and a limiting mechanism 6 that cooperates with the pull rod 5 to limit the speaker body 1 at the lower end of the side plate 4. Fixed mode: When the speaker body 1 is tilted towards the support block 3, the support block 3 acts as a rigid fulcrum and contacts the ground. At this time, the limit mechanism 6 can be unfolded by the pull rod 5 to prevent the speaker body 1 from sliding accidentally.

[0017] Movement mode: The user drags the speaker by adjusting the height of the lever 5. When the speaker body 1 tilts towards the roller 2, the roller 2 is in contact with the ground, reducing steering resistance.

[0018] Compared with existing technologies (such as CN222582549U), this design avoids the problem of accidental slippage caused by one end of the caster contacting the ground when adjusting the caster, and the introduction of support block 3 significantly improves the adaptability to complex terrains such as slopes and grasslands.

[0019] Specifically, such as Figure 2-5As shown, the top of the side plate 4 is provided with a sliding hole 401 to provide sliding space for the pull rod 5. The pull rod 5 includes an outer rod 7 that slides in the sliding hole 401. The outer rod 7 has a sliding groove 701 inside. An inner rod 8 is slidably connected in the sliding groove 701. Compression springs 9 are connected between the bottom sides of the inner rod 8 and the outer rod 7. Sliding positioning blocks 10 are provided at the bottom of both sides of the inner rod 8. The side plate 4 has two sets of positioning grooves 402 that are adapted to the size of the positioning blocks 10. The compression spring 9 provides a rebound force to the inner rod 8, ensuring automatic reset after pressing. The two sets of positioning grooves 402 are respectively set at the corresponding stopping positions of the positioning block 10 when the pull rod 5 is fully extended and fully retracted. When the pull rod 5 is adjusted to the target length, the positioning block 10 is embedded in the positioning groove 402 to form a mechanical lock. Even if the limiting mechanism 6 is squeezed, it can keep the extension and retraction state of the pull rod 5 stable and prevent position displacement caused by external force. A pressure block 11 is installed on the top of the inner rod 8, and a connection hole 702 with a size matching the pressure block 11 is opened on the top of the outer rod 7. The pressure block 11 is fixed to the center of the top of the inner rod 8. Both the outer rod 7 and the inner rod 8 are inverted U-shaped. Through the force transmission characteristics of the U-shaped structure, the downward pressure is evenly transmitted to the positioning blocks 10 on both sides to achieve synchronous unlocking. This design optimizes the one-handed operation experience and is suitable for portable devices that require quick adjustment, while avoiding one-sided jamming caused by uneven load. The bottom of both sides of the inner rod 8 is provided with limiting holes 801 that are adapted to the size of the positioning block 10. Guide blocks 12 are installed at both ends of the limiting holes 801. Guide grooves 1001 that are inclined downward and adapted to the size of the guide blocks 12 are provided at both ends of the positioning block 10. Through holes 703 that are adapted to the size of the positioning block 10 are provided at the bottom of both sides of the outer rod 7. The limiting hole 801 ensures the accuracy of the motion path by constraining the lateral displacement of the positioning block 10. The guide block 12 cooperates with the inclined surface of the guide groove 1001 to convert the vertical movement of the inner rod 8 into the lateral displacement of the positioning block 10. The through hole 703 serves as the extension channel of the positioning block 10.

[0020] Specifically, such as Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, grooves 704 are provided on both sides of the bottom of the outer rod 7, and guide wheels 13 are rotatably installed in the grooves 704; The bottom of the side plate 4 is provided with a storage groove 403 to provide rotation space for the limiting mechanism 6. The limiting mechanism 6 includes a rotating rod 601 rotatably installed on both sides of the storage groove 403. An abutment rod 602 that presses against the guide wheel 13 is installed in the middle of the rotating rod 601. Both ends of the rotating rod 601 are fitted with torsion springs 603 that are connected to the abutment rod 602 and the storage groove 403. A support rod 604 is installed at the bottom of the abutment rod 602. The guide wheel 13 is made of polyurethane coated material. Compared with traditional hard contact sliding, rolling friction reduces the coefficient of friction. The torsion spring 603 acts as a limit stop for the abutment rod 602 and the support rod 604. When the pull rod 5 is fully extended, the abutment rod 602 and the support rod 604 are completely retracted into the storage groove 403 under the action of the torsion spring 603.

[0021] In summary, the adjustable portable outdoor speaker provided in this embodiment allows for mode switching during use: Fixed mode: At this time, the pull rod 5 is in the retracted state, the guide wheel 13 abuts against the abutting rod 602, the abutting rod 602 twists the torsion spring 603, the positioning block 10 is embedded in the bottom positioning groove 402, and the roller 2, support block 3 and support rod 604 are in contact with the ground to prevent slippage; Movement mode: Press the pressure block 11. The pressure block 11 slides downward in the connecting hole 702 at the top of the outer rod 7, causing the inner rod 8 to slide downward. When the inner rod 8 slides downward, it causes the guide block 12 to slide in the guide groove 1001, causing the positioning block 10 to slide laterally, disengage from the bottom positioning groove 402, and enter the limiting hole 801 of the inner rod 8 through the through hole 703. At the same time, the inner rod 8 presses down to compress the spring 9. At this time, the outer rod 7 is released from its limit. Pull the pull rod 5 upward to adjust the height. When the positioning block 10 moves into the top positioning groove 402, release the pressure block 11. The rebound force of the compression spring 9 drives the inner rod 8... Slide upwards, causing guide block 12 to slide in the opposite direction in guide groove 1001, so that one end of positioning block 10 extends out of through hole 703 and is fixed in top positioning groove 402. When pull rod 5 moves upwards, bottom guide wheel 13 disengages from abutting rod 602. Torsional force of torsion spring 603 drives abutting rod 602 and support rod 604 to rotate and retract into bottom storage groove 403 of side plate 4. Support rod 604 disengages from ground. At this time, tilt speaker body 1 towards roller 2, so that support block 3 disengages from ground, leaving only roller 2 in contact with ground. At this time, pull rod 5 to achieve overall movement.

[0022] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An adjustable portable speaker for outdoor use, comprising a speaker body (1), characterized in that, The bottom of the speaker body (1) is symmetrically equipped with rollers (2), and the bottom of the speaker body (1) is symmetrically equipped with support blocks (3). The speaker body (1) is equipped with a side plate (4) at one end. The upper end of the side plate (4) is slidably connected with an adjustable pull rod (5), and the lower end of the side plate (4) is rotatably connected with a limiting mechanism (6) that cooperates with the pull rod (5) to limit the speaker body (1).

2. The adjustable portable speaker for outdoor use according to claim 1, characterized in that, The top of the side plate (4) is provided with a sliding hole (401) to provide sliding space for the pull rod (5). The pull rod (5) includes an outer rod (7) that slides in the sliding hole (401). The outer rod (7) has a sliding groove (701) inside. An inner rod (8) is slidably connected in the sliding groove (701). A compression spring (9) is connected between the bottom sides of the inner rod (8) and the outer rod (7). Sliding positioning blocks (10) are provided at the bottom of both sides of the inner rod (8). The side plate (4) has two sets of positioning grooves (402) that are adapted to the size of the positioning blocks (10).

3. The adjustable portable speaker for outdoor use according to claim 2, characterized in that, The top of the inner rod (8) is fitted with a pressure block (11), and the top of the outer rod (7) is provided with a connection hole (702) that matches the size of the pressure block (11).

4. An adjustable portable outdoor speaker according to claim 2, characterized in that, The bottom of both sides of the inner rod (8) is provided with limiting holes (801) that are adapted to the size of the positioning block (10). Guide blocks (12) are installed at both ends of the limiting holes (801). Guide grooves (1001) that are inclined downward and adapted to the size of the guide blocks (12) are provided at both ends of the positioning block (10). Through holes (703) that are adapted to the size of the positioning block (10) are provided at the bottom of both sides of the outer rod (7).

5. An adjustable portable outdoor speaker according to claim 2, characterized in that, The bottom of the outer rod (7) is provided with grooves (704) on both sides, and guide wheels (13) are rotatably installed in the grooves (704).

6. An adjustable portable speaker for outdoor use according to claim 5, characterized in that, The bottom of the side plate (4) is provided with a storage groove (403) to provide rotation space for the limiting mechanism (6). The limiting mechanism (6) includes a rotating rod (601) rotatably installed on both sides of the storage groove (403). The middle part of the rotating rod (601) is equipped with an abutment rod (602) that presses against the guide wheel (13). Both ends of the rotating rod (601) are fitted with torsion springs (603) that are connected to the abutment rod (602) and the storage groove (403). The bottom of the abutment rod (602) is equipped with a support rod (604).

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