Novel sound box draw-bar box
By designing a new speaker trolley case, combined with the tie rod and shoulder strap assembly, the problem of insufficient portability of the existing speaker cover is solved, achieving convenience and comfort when carrying speakers with different weights.
Patent Information
- Application Number
- CN202422188878.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-09-06
AI Technical Summary
When the existing speaker protective case carries heavy or large speakers, the user is prone to fatigue and the risk of damage to the speakers, which is insufficient portability.
A new speaker trolley box is designed, including a trolley assembly, a box cover body, a shoulder strap assembly and a base assembly. The trolley assembly is retractable, the base assembly has pulleys and fixed columns, and the shoulder strap assembly can be switched to use, providing a variety of carrying methods.
It achieves convenient sliding when carrying a heavy speaker, switch to shoulder and back when carrying a light speaker, improving portability and comfort, and protecting the speaker from damage.
Smart Images

Figure CN223275064U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of speaker boxes, in particular to a novel speaker trolley case. Background Art
[0002] In the existing technology, speaker cases are often carried in handheld, shoulder-slung, or backpack configurations. These traditional speaker cases are difficult to carry when moving heavy or bulky speakers, potentially causing discomfort or damaging the speakers. Therefore, existing speaker cases have significant portability limitations. Utility Model Content
[0003] The utility model aims to provide a novel speaker trolley case, aiming to solve the problem in the prior art that the speaker protective cover is not portable enough during use.
[0004] In order to solve the above technical problems, the purpose of the present utility model is achieved through the following technical solutions: providing a new type of speaker trolley case, including: a trolley assembly, a case cover body, a shoulder strap assembly and a base assembly, the case cover body is provided with a storage cavity for storing speakers, and the two ends of the shoulder strap assembly are respectively connected to the two opposite sides of the case cover body; the trolley assembly includes a trolley and a trolley frame, the trolley frame is vertically arranged on the side of the case cover body, and the trolley is retractably arranged on the trolley frame; the base assembly includes a pulley member arranged at the bottom of the case cover body and close to the trolley assembly, and a fixed column arranged away from the trolley assembly.
[0005] Furthermore, it also includes a storage component, which is arranged on the side of the box cover body.
[0006] Furthermore, the box cover body includes at least a first side surface, a second side surface, and a third side surface arranged in sequence, wherein the first side surface is opposite to the third side surface, the two ends of the shoulder strap assembly are respectively connected to the first side surface and the third side surface, the pull rod frame is vertically arranged on the second side surface, and the storage assembly is arranged on the first side surface.
[0007] Furthermore, the storage component includes a first storage compartment and a second storage compartment, the second storage compartment is opened on the outside of the first storage compartment, and the first storage compartment and the second storage compartment are both provided with openings, and the openings are provided with zipper tapes and zipper heads connected to the zipper tapes.
[0008] Furthermore, at least two pairs of pulley members are provided and are respectively provided on both sides of the bottom of the box cover body. Each pulley member includes a pulley bracket and a pulley. The pulley bracket is fixedly connected to the bottom of the box cover body, and the pulley is rotatably connected to the pulley bracket.
[0009] Furthermore, the shoulder strap assembly includes a shoulder pad, a shoulder strap, an adjustment buckle, at least two load-bearing ears and at least two connecting buckle groups, the shoulder pad is arranged in the middle of the shoulder strap, at least two of the load-bearing ears are respectively connected to two opposite sides of the box cover body, the shoulder strap includes a shoulder strap adjustment end and a shoulder strap fixed end, the shoulder strap adjustment end and the shoulder strap fixed end are both connected to the load-bearing ears through the connecting buckle group, and the adjustment buckle is arranged on the shoulder strap adjustment end.
[0010] Furthermore, the connecting buckle group includes a fixed buckle and a movable buckle, the fixed buckle is connected to the load-bearing ear, the movable buckle is connected to the shoulder strap, and the movable buckle is detachably connected to the fixed buckle.
[0011] Furthermore, the shoulder strap is made of nylon.
[0012] Furthermore, the box cover body includes a speaker cover, a top cover and a load-bearing bottom support, the storage cavity is arranged in the speaker cover, the top cover is connected to the speaker cover through a zipper, and the load-bearing bottom support is arranged at the bottom of the speaker cover.
[0013] Furthermore, the speaker cover and the top cover are made of Oxford cloth.
[0014] The embodiment of the present utility model provides a new type of speaker trolley case, comprising: a trolley assembly, a case body, a shoulder strap assembly, and a base assembly. The case body is provided with a storage cavity for storing the speaker, and the two ends of the shoulder strap assembly are respectively connected to two opposite sides of the case body; the trolley assembly comprises a trolley and a trolley frame, the trolley frame is vertically arranged on the side of the case body, and the trolley is retractably arranged on the trolley frame; the base assembly comprises a pulley member arranged at the bottom of the case body and close to the trolley assembly, and a fixed column arranged away from the trolley assembly. The present utility model, through the cooperation of the trolley assembly, the base assembly, and the case body, allows the speaker trolley case to slide on the ground when carrying a heavier speaker, and can switch to using the shoulder strap assembly for carrying when carrying a lighter speaker, which is easy and labor-saving, greatly improving portability. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0016] Figure 1 A schematic diagram of the structure of a new speaker trolley case provided by the embodiment of the utility model Figure 1 ;
[0017] Figure 2 A schematic diagram of the structure of a new speaker trolley case provided by the embodiment of the utility model Figure 2 ;
[0018] Figure 3 A schematic diagram of the structure of a new speaker trolley case provided by the embodiment of the utility model Figure 3 ;
[0019] Figure 4 A schematic diagram of the structure of a new speaker trolley case provided by the embodiment of the utility model Figure 4 ;
[0020] Figure 5 A schematic diagram of the structure of a new speaker trolley case provided by the embodiment of the utility model Figure 5 ;
[0021] Figure 6 A schematic diagram of a folded state of a new speaker trolley case provided by an embodiment of the utility model Figure 1 ;
[0022] Figure 7 A schematic diagram of a folded state of a new speaker trolley case provided by an embodiment of the utility model Figure 2 .
[0023] Description of the symbols in the figure:
[0024] 10. Tie rod assembly; 11. Tie rod; 12. Tie rod frame;
[0025] 20. Box cover body; 21. First side; 22. Second side; 23. Third side; 24. Speaker cover; 25. Top cover; 26. Load-bearing bottom bracket;
[0026] 30. Shoulder strap assembly; 31. Shoulder pad; 32. Shoulder strap; 321. Shoulder strap adjustment end; 322. Shoulder strap fixed end; 33. Adjustment buckle; 34. Load-bearing lug; 35. Connecting buckle assembly; 351. Fixed buckle; 352. Movable buckle;
[0027] 40. Base assembly; 41. Pulley assembly; 411. Pulley bracket; 412. Pulley; 42. Fixed column; 43. Bracket rod;
[0028] 50. Storage component; 51. First storage compartment; 52. Second storage compartment; 53. Zipper tape; 54. Zipper pull. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are 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 will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.
[0031] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural forms unless the context clearly indicates otherwise.
[0032] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.
[0033] Combine Figure 1 As shown, an embodiment of the present invention provides a new type of speaker trolley case, comprising: a trolley assembly 10, a case cover body 20, a shoulder strap assembly 30 and a base assembly 40, the case cover body 20 is provided with a storage cavity for storing the speaker, and the two ends of the shoulder strap assembly 30 are respectively connected to the two opposite sides of the case cover body 20; the trolley assembly 10 comprises a trolley 11 and a trolley frame 12, the trolley frame 12 is vertically arranged on the side of the case cover body 20, and the trolley 11 is retractably arranged on the trolley frame 12; the base assembly 40 comprises a pulley member 41 arranged at the bottom of the case cover body 20 and close to the trolley assembly 10, and a fixed column 42 arranged away from the trolley assembly 10.
[0034] In this embodiment, the pull rod 11 is a retractable structure. The user can adjust the length of the pull rod 11 according to personal height and carrying requirements, making it more comfortable and convenient to carry. The pull rod frame 12 is vertically arranged on the side of the box cover body 20 to provide stable support and ensure the smooth extension and retraction of the pull rod 11, that is, the pull rod 11 can slide in the pull rod frame 12. A storage cavity (not shown in the figure) for storing the speaker is designed in the box cover body 20. The size and shape of the storage cavity are adjusted one-to-one according to the speaker to ensure that the speaker can be placed firmly and reduce shaking during movement. When it is inconvenient for the user to use the pull rod 11, the shoulder strap assembly 30 can be used to carry it. The pulley member 41 is arranged at the bottom of the box cover body 20 near the pull rod assembly 10. The pulley member 41 enables the box cover body 20 to move on various planes. The fixed column 42 is located in the bottom area away from the pull rod assembly 10. When the speaker trolley case needs to be fixed, the fixed column 42 can prevent the box cover body 20 from sliding or tilting and provide support.
[0035] The new speaker trolley case of this utility model not only meets the market demand for diverse speaker carrying methods in terms of functionality, but also provides structural protection. This design allows users to easily manage and carry their speaker equipment, whether traveling, performing, or on the go. When carrying heavier speakers, the speaker trolley case can slide on the ground. When carrying lighter speakers, the shoulder strap assembly can be switched to carry them easily and labor-savingly.
[0036] In one embodiment, a storage assembly 50 is further included. The storage assembly 50 is disposed on a side surface of the box body 20 .
[0037] In this embodiment, the storage assembly 50 can provide additional storage space. The storage assembly 50 is located on the side of the case body 20. The storage assembly 50 does not affect the portability of the case body 20 while providing additional storage space. The storage assembly 50 can be connected to the case body 20 through a sewing process. By adding the storage assembly 50 to the side of the case body 20, the user can store and carry other items while carrying the speaker.
[0038] Combine Figure 2 and Figure 3 As shown, in one embodiment, the case body 20 includes at least a first side surface 21, a second side surface 22, and a third side surface 23 arranged in sequence, wherein the first side surface 21 is opposite to the third side surface 23, and the two ends of the shoulder strap assembly 30 are respectively connected to the first side surface 21 and the third side surface 23, the pull rod frame 12 is vertically arranged on the second side surface 22, and the storage assembly 50 is arranged on the first side surface 21.
[0039] In this embodiment, the ends of the shoulder strap assembly 30 are respectively fixed to the first side surface 21 and the third side surface 23. The shoulder strap assembly 30 can provide support in the width direction of the case body 20, making it more stable when carried. The pull rod bracket 12 is vertically arranged on the second side surface 22 to provide support, making it easier to operate the pull rod 11.
[0040] In one embodiment, the storage component 50 includes a first storage compartment 51 and a second storage compartment 52. The second storage compartment 52 is opened on the outside of the first storage compartment 51. The first storage compartment 51 and the second storage compartment 52 are both provided with openings, and the openings are provided with a zipper tape 53 and a zipper head 54 connected to the zipper tape 53.
[0041] In this embodiment, the first storage compartment 51 serves as the inner layer of the storage component 50 and is directly arranged on the first side 21 of the case body 20. The first storage compartment 51 has a larger storage space and is suitable for placing larger or thicker items, such as power adapters, large chargers, etc. The second storage compartment 52 is opened on the outside of the first storage compartment 51, forming an additional storage level. The second storage compartment 52 is usually shallower and is suitable for storing smaller items or items that need to be accessed quickly, such as mobile phones, keys, headphones, etc. Both storage compartments (the first storage compartment 51 and the second storage compartment 52) are provided with openings to facilitate users to put in or take out items. Each opening is equipped with a zipper tape 53 and a zipper pull 54, providing a safe closing mechanism. The zipper tape 53 covers the entire opening, and the zipper pull 54 is used to pull the zipper tape 53.
[0042] Combine Figure 4 As shown, in one embodiment, at least two pairs of pulley members 41 are provided and are respectively provided on both sides of the bottom of the box cover body 20. Each pulley member 41 includes a pulley bracket 411 and a pulley 412. The pulley bracket 411 is fixedly connected to the bottom of the box cover body 20, and the pulley 412 is rotatably connected to the pulley bracket 411.
[0043] In this embodiment, at least two pairs of pulleys 41 are provided, one on each side of the bottom of the case body 20. This symmetrical arrangement enhances the balance of the entire speaker case, making it more stable when moving on different surfaces. Each pulley 41 includes a pulley bracket 411 fixedly connected to the bottom of the case body 20. A pulley 412 is connected to the pulley bracket 411 via a bearing, allowing the pulley 412 to rotate.
[0044] In one embodiment, the shoulder strap assembly 30 includes a shoulder pad 31, a shoulder strap 32, an adjustment buckle 33, at least two load-bearing ears 34 and at least two connecting buckle groups 35. The shoulder pad 31 is arranged in the middle of the shoulder strap 32, and the at least two load-bearing ears 34 are respectively connected to two opposite sides of the case body 20. The shoulder strap 32 includes a shoulder strap adjustment end 321 and a shoulder strap fixed end 322. The shoulder strap adjustment end 321 and the shoulder strap fixed end 322 are both connected to the load-bearing ears 34 through the connecting buckle group 35, and the adjustment buckle 33 is arranged on the shoulder strap adjustment end 321.
[0045] In this embodiment, the shoulder pad 31 is used to relieve shoulder pressure. The shoulder strap 32 includes an adjustable shoulder strap end 321 and a fixed shoulder strap end 322. An adjustment buckle 33 is provided on the adjustable shoulder strap end 321, allowing the user to adjust the length of the shoulder strap 32 as needed to accommodate different heights and carrying styles. There are at least two load-bearing ears 34, connected to two opposing sides of the case body 20. The load-bearing ears 34 are used to evenly distribute the load of the shoulder strap 32 onto the case body 20. There are at least two connecting buckle groups 35, which are used to secure the adjustable shoulder strap end 321 and the fixed shoulder strap end 322 to the case body 20 via the load-bearing ears 34.
[0046] In one embodiment, the connecting buckle assembly 35 includes a fixed buckle 351 and a movable buckle 352 . The fixed buckle 351 is connected to the load-bearing ear 34 , and the movable buckle 352 is connected to the shoulder strap 32 . The movable buckle 352 and the fixed buckle 351 are detachably connected.
[0047] In this embodiment, the fixed ring buckle 351 is connected to the load-bearing ear 34. The fixed ring buckle 351 is usually made of a strong metal material and can withstand large tension and weight. The fixed ring buckle 351 is fixed to the load-bearing ear 34 of the case body 20 and serves as a static connection point for the shoulder strap 32 to be hung. The movable ring buckle 352 provides a dynamic interface between the shoulder strap 32 and the fixed ring buckle 351, allowing the shoulder strap 32 to rotate freely according to the user's activities during use, thereby increasing the comfort of carrying. The movable ring buckle 352 is also made of a durable metal material to ensure durability for long-term use. The movable ring buckle 352 is detachably connected to the fixed ring buckle 351, and the user can quickly hang the shoulder strap 32 on or remove it from the case body 20.
[0048] Specifically, when the shoulder strap 32 is needed for carrying, the user can hook the movable ring buckle 352 onto the fixed ring buckle 351. To remove the shoulder strap 32, the user simply operates the unlocking mechanism on the movable ring buckle 352 to easily separate the two rings and remove the shoulder strap 32. This quick connection and removal function is particularly suitable for users who need to frequently adjust the carrying method.
[0049] In one embodiment, the shoulder strap 32 is made of nylon.
[0050] In this embodiment, nylon is chosen as the material for the shoulder strap 32 because it has high strength, good elasticity, and abrasion resistance. Nylon can withstand heavy loads without breaking or deforming, making it suitable for shoulder straps subjected to cyclical loads. Nylon's tear and abrasion resistance ensure that the shoulder strap 32 remains in good condition during long-term use, even under frequent friction and stretching. While nylon is strong, it also has a certain degree of softness and elasticity, providing a certain cushioning effect when carrying heavy objects, reducing pressure on the shoulders.
[0051] Combine Figure 5 As shown, in one embodiment, the box cover body 20 includes a speaker cover 24, a top cover 25 and a load-bearing bottom support 26, the storage cavity is set in the speaker cover 24, the top cover 25 is connected to the speaker cover 24 through a zipper, and the load-bearing bottom support 26 is set at the bottom of the speaker cover 24.
[0052] In this embodiment, the speaker case 24 forms the main portion of the case body 20 and is used to house the speaker. A top cover 25 is connected to the speaker case 24 via a zipper, allowing the user to open and close the top cover 25. A load-bearing base 26 is provided at the bottom of the speaker case 24. The base is typically made of a sturdy composite material or reinforced plastic, capable of supporting the weight of the entire speaker case and the speaker, while protecting the bottom from damage by sharp objects. The zipper design makes opening and closing the top cover 25 simple and easy.
[0053] Combine Figure 6 and Figure 7 As shown, in one embodiment, the base assembly 40 further includes a support rod 43, one end of the support rod 43 is connected to the pulley 41, and the other end is connected to the fixed column 42. When the new speaker trolley case needs to be stored, the support rod 43 can be removed from the corresponding holes on the pulley 41 and the fixed column 42, and then the case body 20 and the base assembly 40 can be folded and stored. The final storage effect is as follows Figure 7 As shown, when the new speaker trolley case needs to be used, it is only necessary to unfold the case body 20 and the base assembly 40, and connect the two ends of the bracket rod 43 to the corresponding holes on the pulley part 41 and the fixed column 42 respectively, which is convenient and quick.
[0054] In one embodiment, the speaker cover 24 and the top cover 25 are made of Oxford cloth.
[0055] In this embodiment, Oxford cloth is a densely woven fabric typically made of polyester or nylon fibers that offers excellent wear resistance. Both the speaker cover 24 and the top cover 25 are constructed of Oxford cloth, which not only ensures a durable exterior but also provides a degree of cushioning protection. The Oxford cloth construction of the speaker cover 24 and top cover 25 creates a sturdy and protective exterior that is suitable for long-term use and can withstand the impact of various external conditions.
[0056] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.
Claims
1. A new type of speaker trolley case, characterized in that: include: A pull rod assembly, a case cover body, a shoulder strap assembly and a base assembly, wherein the case cover body is provided with a storage cavity for accommodating the speaker, and the two ends of the shoulder strap assembly are respectively connected to two opposite sides of the case cover body; the pull rod assembly includes a pull rod and a pull rod frame, the pull rod frame is vertically arranged on the side of the case cover body, and the pull rod is retractably arranged on the pull rod frame; the base assembly includes a pulley member arranged at the bottom of the case cover body and close to the pull rod assembly, and a fixed column arranged away from the pull rod assembly.
2. The novel speaker trolley case according to claim 1 is characterized in that: It also includes a storage component, which is arranged on the side of the box cover body.
3. The novel speaker trolley case according to claim 2 is characterized in that: The box cover body includes at least a first side surface, a second side surface, and a third side surface arranged in sequence, wherein the first side surface is opposite to the third side surface, the two ends of the shoulder strap assembly are respectively connected to the first side surface and the third side surface, the pull rod frame is vertically arranged on the second side surface, and the storage assembly is arranged on the first side surface.
4. The novel speaker trolley case according to claim 2 is characterized in that: The storage component includes a first storage compartment and a second storage compartment, the second storage compartment is opened on the outside of the first storage compartment, and the first storage compartment and the second storage compartment are both provided with openings, and the openings are provided with zipper tapes and zipper heads connected to the zipper tapes.
5. The novel speaker trolley case according to claim 1 is characterized in that: At least two pairs of pulley members are provided and are respectively provided on both sides of the bottom of the box cover body. Each pulley member includes a pulley bracket and a pulley. The pulley bracket is fixedly connected to the bottom of the box cover body, and the pulley is rotatably connected to the pulley bracket.
6. The novel speaker trolley case according to claim 1 is characterized in that: The shoulder strap assembly includes a shoulder pad, a shoulder strap, an adjustment buckle, at least two load-bearing ears and at least two connecting buckle groups. The shoulder pad is arranged in the middle of the shoulder strap, and at least two load-bearing ears are respectively connected to two opposite sides of the box cover body. The shoulder strap includes a shoulder strap adjustment end and a shoulder strap fixed end. The shoulder strap adjustment end and the shoulder strap fixed end are both connected to the load-bearing ears through the connecting buckle group. The adjustment buckle is arranged on the shoulder strap adjustment end.
7. The novel speaker trolley case according to claim 6 is characterized in that: The connecting buckle group includes a fixed buckle and a movable buckle, the fixed buckle is connected to the load-bearing ear, the movable buckle is connected to the shoulder strap, and the movable buckle is detachably connected to the fixed buckle.
8. The novel speaker trolley case according to claim 6 is characterized in that: The shoulder strap is made of nylon.
9. The novel speaker trolley case according to claim 1 is characterized in that: The box cover body includes a speaker cover, a top cover and a load-bearing bottom support, the storage cavity is arranged in the speaker cover, the top cover is connected to the speaker cover through a zipper, and the load-bearing bottom support is arranged at the bottom of the speaker cover.
10. The novel speaker trolley case according to claim 9 is characterized in that: The material of the speaker cover and the top cover is Oxford cloth.