Bell with sound cavity and bicycle
By designing a sound cavity structure within the bicycle bell, the sounder is placed inside the outer shell and combined with the bracket assembly to form a sound cavity. This solves the problems of poor sound effect and limited installation position caused by exposed sounders, achieving a stronger warning effect and wider applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-03-06
AI Technical Summary
The exposed sound unit of existing bicycle bells results in poor sound quality in inclement weather conditions, and the installation location is limited, affecting the warning effect and the scope of use.
Design a bell with a sound cavity, in which the sounder is set inside the shell, and the shell and the support assembly form the sound cavity. The rear end of the sounder is exposed, and the hammer is elastically connected. The front end of the shell and the sounder are spaced apart to optimize the sound propagation path and resonance effect.
The bell's volume and duration of sound have been increased in adverse weather conditions, reducing limitations on installation locations and enhancing the product's versatility and warning effect.
Smart Images
Figure CN223972649U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bicycle accessories technology, and in particular to a bell with a sound cavity and a bicycle including the bell. Background Technology
[0002] In the bicycle industry, bells, as important safety warning devices, are widely used in various bicycle products. Currently, most bicycle bells on the market have exposed sounders. This design has several drawbacks: Firstly, when foreign objects such as dust or debris come into contact with the sounder, they hinder its normal vibration, causing the bell to become quieter and the duration of each sound to be significantly shortened, severely weakening the bell's warning effect. Secondly, in rainy or humid environments, rainwater contact with the sounder interferes with its resonant frequency, significantly affecting the bell's volume and duration of each sound, reducing its reliability in adverse weather conditions. Furthermore, because the sounder is exposed, preventing collisions or interference from other bicycle components greatly limits the bell's installation location on the bicycle. Some bicycles with special structures or component layouts cannot even accommodate such bells, significantly restricting their application.
[0003] Therefore, there is an urgent need to design a new type of bicycle bell to solve the aforementioned technical problems caused by the exposed sounder in existing bells. Utility Model Content
[0004] This invention proposes a bell with a sound cavity to solve the above-mentioned problems.
[0005] To achieve the above objectives, this utility model proposes a bell with a sound cavity, comprising a support assembly, a housing, a sounding device, and a hammer; the support assembly is for mounting on a bicycle; the housing is mounted on the support assembly; the sounding device is disposed inside the housing, with its rear end protruding from the housing; the hammer is elastically connected to the support assembly and is used to strike the sounding device protruding from the housing;
[0006] The outer shell and the support assembly are combined to form a sound cavity with an opening located at the front end of the outer shell; the sound cavity extends from the rear end of the outer shell to the front end of the outer shell, and the front-facing side of the sounder is spaced apart from the front end of the outer shell.
[0007] In one embodiment, the width of the vocal cavity tends to increase in the direction extending from the rear end to the front end.
[0008] In one embodiment, the bell further includes a plurality of springs for suspending the sounder within the sound cavity.
[0009] In one embodiment, the size of the speaker protruding outside the housing is smaller than the size of the speaker inside the housing.
[0010] In one embodiment, the bracket assembly includes an upper bracket and a lower bracket assembled to each other, the upper bracket and the lower bracket being disposed opposite each other to form a receiving cavity for fixing to a bicycle.
[0011] In one embodiment, the hammer is connected to the upper support via an elastic element, so that the hammer can elastically deform and strike the rear end of the sounder.
[0012] In one embodiment, the sound-producing device is arc-shaped.
[0013] In one embodiment, the number of springs is set to three, with one spring located near the 1 / 3 position of the length of the speaker, and the other spring located opposite the 2 / 3 position of the length of the speaker.
[0014] In another embodiment, there are two springs, which are located on both sides of the speaker and are vertically arranged; the springs are located below the speaker.
[0015] This utility model also proposes a bicycle, including the bell described above.
[0016] The bell with a sound cavity in this utility model has a sound cavity formed by the combination of the outer shell and the support assembly, which extends from the rear end to the front end. The sounder is spaced apart from the front end of the outer shell on the side facing forward. This structural design can optimize the sound propagation path and resonance effect, making the sound emitted by the bell louder and clearer, and effectively enhancing the warning effect. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0018] Figure 1 A schematic diagram of the structure of an embodiment of the bell with a sound cavity provided by this utility model;
[0019] Figure 2 An exploded structural diagram of an embodiment of the bell with a sound cavity provided by this utility model;
[0020] Figure 3 A cross-sectional view of an embodiment of the bell with a sound cavity provided by this utility model;
[0021] Figure 4 This is a schematic diagram of another embodiment of the spring 50 of this utility model.
[0022] Explanation of icon numbers:
[0023] 10. Support assembly; 11. Upper support; 12. Lower support; 13. Receiving cavity; 20. Housing; 20a. Sound chamber; 20b. Opening; 30. Sounding device; 40. Hammer; 50. Spring; 60. Elastic element; 70. Circular clamp. Detailed Implementation
[0024] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0027] Please refer to Figure 1 , Figure 2 and Figure 3As shown, an embodiment of this application provides a bell with a sound cavity, including a bracket assembly 10, a housing 20, a sounder 30, and a hammer 40. The bracket assembly 10 is for mounting on a bicycle. The housing 20 is mounted on the bracket assembly 10, the sounder 30 is disposed within the housing 20, and the rear end of the sounder 30 protrudes from the housing 20. The hammer 40 is elastically connected to the bracket assembly 10 and is used to strike the sounder 30 protruding from the housing 20. The housing 20 and the bracket assembly 10 combine to form a sound cavity 20a with an opening 20b at the front end of the housing 20. The sound cavity 20a extends from the rear end of the housing 20 to the front end, and the front side of the sounder 30 is spaced H from the front end of the housing 20.
[0028] Specifically, the bracket assembly 10 serves as the connecting carrier between the bell and the bicycle, providing a stable foundation for the bell and other components. The outer shell 20, mounted on the bracket assembly 10, has a specific shaped shell structure and cooperates with the bracket assembly 10 to form part of the sound chamber 20a. The sounder 30 is disposed within the outer shell 20, employing a vibrating component to produce sound, with its rear end protruding from the outer shell 20 to cooperate with the hammer 40 to strike and produce sound. The hammer 40 is elastically connected to the bracket assembly 10, allowing for elastic displacement under force to strike the sounder 30 protruding from the outer shell 20. The bracket assembly 10 is mounted on the bicycle using conventional fixing methods such as bolts and clips, for example, at the handlebars. The outer shell 20 and the bracket assembly 10 are tightly connected, forming a sound chamber 20a with an opening 20b located at the front end of the outer shell 20. The sound chamber 20a extends from the rear end to the front end of the outer shell 20. The sounder 30 is fixedly installed inside the housing 20, and its front side is spaced apart from the front end of the housing 20. The hammer 40 is elastically connected to the bracket assembly 10, and its position corresponds to the part of the sounder 30 that protrudes from the housing 20, so as to ensure that the sounder 30 can be accurately struck.
[0029] The sounder 30 is housed within the casing 20, with only the rear end exposed. Compared to existing exposed sounders 30, the casing 20 effectively prevents foreign objects from contacting the sounder 30, reducing interference from external factors on its vibration and avoiding issues such as decreased volume or shortened single-sound duration. Simultaneously, in humid environments such as rainy days, the casing 20 prevents rainwater from directly contacting the sounder 30, ensuring its resonance remains unaffected and maintaining a stable volume and duration of each sound. Since the sounder 30 is mostly enclosed by the casing 20, it is less prone to collisions or interference with other bicycle accessories, unlike existing bells. This significantly reduces limitations on installation location, allowing the bell to be compatible with more types of bicycles and significantly improving its versatility and applicability. The sound cavity 20a, formed by the casing 20 and the bracket assembly 10, extends from the rear end to the front end. The front-facing side of the sounder 30 is spaced from the front end of the casing 20. This structural design optimizes the sound propagation path and resonance effect, making the bell's sound louder and clearer, effectively enhancing its warning effect.
[0030] Furthermore, the interval H is in the range of 2mm-4mm.
[0031] Specifically, the distance H between the front end of the sounder 30 and the front end of the outer casing 20 is in the range of 2mm-4mm. This distance design provides reasonable space for sound propagation and vibration of the sounder 30. If the distance is too small, the sound reflection space within the sound chamber 20a is insufficient, and it cannot fully resonate and superimpose, resulting in poor amplification effect, and the loudness and clarity of the bell sound cannot reach the ideal state; if the distance is too long, although theoretically there is more space for sound reflection, it will occupy too much space, not only increasing the material usage of components such as the outer casing 20 and increasing production costs, but also increasing the overall structural size of the bell, which is not conducive to compact installation on the bicycle, and may also increase the risk of interference with other bicycle components. The 2mm-4mm distance provides ideal space for sound reflection and propagation within the sound chamber 20a, allowing the sound to fully resonate, reducing sound loss, further improving the loudness and clarity of the sound, and enhancing the warning effect. It should be noted that, as Figure 3 As shown, the interval H is the distance between the front end of the outer shell and the frontmost part of the speaker.
[0032] Furthermore, the width of the vocal cavity 20a tends to increase in the direction extending from the rear end to the front end.
[0033] Specifically, the sound-producing cavity 20a formed by the combination of the shell and the support assembly 10 gradually increases in width from the rear to the front. This unique structural design further optimizes the sound propagation path and resonance effect. As the sound propagates within the gradually widening sound-producing cavity 20a, it undergoes multiple reflections and superpositions, making the bell's sound louder and clearer, effectively enhancing the warning effect. Simultaneously, this gradual cavity structure helps reduce sound attenuation, allowing the bell's sound to travel further. In complex cycling environments, this allows pedestrians and vehicles to perceive the cyclist's presence earlier, further improving cycling safety.
[0034] Furthermore, the bell also includes multiple springs 50, which are used to suspend the sounder 30 within the sound chamber 20a.
[0035] Specifically, the bell is equipped with multiple springs 50, which suspend the sounder 30 within the sound chamber 20a, preventing direct contact between the sounder 30 and the outer shell 20. The springs 50, suspended within the sound chamber 20a, have minimal impact on the vibration of the sounder 30 due to their elasticity, ensuring that the sounder 30 vibrates freely at its natural frequency. Simultaneously, the springs 50 significantly reduce the proportion of vibrational energy transferred from the sounder 30 to the support assembly 10, preventing the support assembly 10 from absorbing excessive energy and experiencing additional vibrational losses. This allows more of the sounder 30's vibrational energy to be converted into sound energy, effectively increasing the bell's volume and allowing the sound to travel further. In complex riding environments, this enables pedestrians and vehicles to detect the cyclist's presence earlier, further enhancing riding safety. Furthermore, since the sounder 30 is mostly enclosed by the outer shell 20 and suspended, the risk of collision with other bicycle components is reduced, greatly minimizing limitations on installation location. This allows the bell to be adapted to more types of bicycles, significantly improving the product's versatility and applicability.
[0036] Furthermore, the number of springs 50 is set to three, with one spring 50 located near 1 / 3 of the length of the speaker 30, and the other spring 50 located opposite to it at 2 / 3 of the length of the speaker 30.
[0037] Specifically, the bell is equipped with three springs 50. One spring 50 is positioned near the 1 / 3 mark of the length of the sounder 30, while the other two springs 50 are positioned opposite each other at the 2 / 3 mark of the length of the sounder 30. These springs 50 suspend the sounder 30 within the sound chamber 20a, preventing direct contact between the sounder 30 and the outer shell 20. Their reasonable distribution ensures stable suspension and free vibration of the sounder 30 within the chamber. This distribution of the three springs 50 ensures stable installation of the sounder 30 without adding excessive installation complexity, ensuring efficient and convenient installation. The distribution of one spring 50 near the 1 / 3 mark of the length of the sounder 30, with the other two positioned opposite each other at the 2 / 3 mark, evenly distributes the tension on the sounder 30. This ensures that when the sounder 30 is struck and vibrates by the hammer 40, the force on each part is balanced, reducing vibration deformation or abnormal vibration caused by uneven force, allowing the sounder 30 to vibrate more stably and efficiently. At the same time, the buffering effect of the spring 50 significantly reduces the proportion of vibration energy of the speaker 30 transmitted to the bracket assembly 10, preventing the bracket assembly 10 from absorbing too much energy and causing additional vibration consumption. This allows the vibration energy of the speaker 30 to be converted into more sound energy, thereby effectively increasing the volume of the bell and allowing the sound to travel further. In complex cycling environments, this allows pedestrians and vehicles to perceive the presence of the cyclist earlier, further improving cycling safety.
[0038] like Figure 4 In another embodiment, there are two springs 50, which are located on both sides of the sounder 30 and are arranged vertically; the spring 50 is located below the sounder 30.
[0039] When the two springs 50 are vertically arranged below the sounder 30, one end of the spring 50 is used to support the sounder 30. The contact area between the sounder 30 and the spring 50 is small, and the spring 50 is relatively light. When the sounder 30 is struck and vibrates, the spring 50 can absorb very little energy, thereby reducing energy loss and indirectly increasing the energy generated by the sounder 30, which is beneficial to increasing the volume of the bell.
[0040] Furthermore, the size of the speaker 30 exposed outside the housing 20 is smaller than the total length of the speaker 30 inside the housing 20, wherein preferably the size of the speaker 30 exposed outside the housing 20 is 1 / 12 to 1 / 8 of the total size of the speaker 30.
[0041] Specifically, in this embodiment, the sound-producing device 30 is disposed within the housing 20 and is a component capable of generating vibration and sound. Its rear end protrudes from the housing 20, with the exposed dimension being 1 / 12 to 1 / 8 of the total length of the sound-producing device 30, so as to cooperate with the hammer 40 to achieve striking and sound generation. This size setting ensures that the hammer 40 effectively strikes the sound-producing device 30 while also protecting most of the sound-producing device 30 within the housing 20. Because the length of the sound-producing device 30 protruding from the housing 20 is small, when the hammer 40 strikes the sound-producing device 30, most of the vibration of the sound-producing device 30 is located within the sound cavity 20a, with only a small amount of vibration diffusing from the rear end into the air, greatly reducing energy loss in the external space.
[0042] If the length of the sound-producing device 30 protruding from the outer casing 20 is too short, the hammer 40 will have difficulty effectively striking the sound-producing device 30, failing to generate sufficient vibration and thus affecting the bell's sound production. If the protrusion is too long, more energy from the vibration of the sound-producing device 30 will diffuse into the air from the rear end after being struck, causing the sound to be unfocused and weakening its propagation effect. Setting the protrusion length to 1 / 12 to 1 / 8 of the length of the sound-producing device 30 ensures that the hammer 40 accurately strikes the sound-producing device 30, generating stable and efficient vibration, while also ensuring that most of the vibration of the sound-producing device 30 is within the sound cavity 20a, reducing energy loss to the external space. Combined with the design of the sound cavity 20a gradually increasing in width from the rear end to the front end, the sound can be concentrated in the direction of the opening 20b of the sound cavity 20a, enhancing the sound propagation intensity and warning effect in the direction of the target.
[0043] Furthermore, the bracket assembly 10 includes an upper bracket 11 and a lower bracket 12 assembled to each other, the upper bracket 11 and the lower bracket 12 being disposed opposite each other to form a receiving cavity 13 for fixing to a bicycle.
[0044] Specifically, in this embodiment, the bracket assembly 10 consists of an upper bracket 11 and a lower bracket 12 assembled together. The upper bracket 11 and the lower bracket 12 are arranged opposite to each other, and together they form a circular receiving cavity 13 for fixing to a bicycle. The circular receiving cavity 13 can closely fit the shape of cylindrical parts such as bicycle handlebars, achieving a stable and close fit. The bracket assembly 10 serves as the connecting carrier between the bell and the bicycle, providing a supporting base for other components. The upper bracket 11 and the lower bracket 12 of the bracket assembly 10 can be assembled by means of clips, bolts, etc. After forming the circular receiving cavity 13, a suitable circular fastener (such as a circular clamp 70, a circular strap, etc.) can be used to pass through the receiving cavity 13 to securely install the bracket assembly 10 on cylindrical parts such as bicycle handlebars. Because the receiving cavity 13 is circular, it fits tightly with parts such as handlebars, and no additional angle adjustment is required, enabling quick and stable installation. In this embodiment, the speaker 30 is arc-shaped and uses a component that can generate vibration and sound. Its curvature is adapted to the circular receiving cavity 13, which ensures installation stability and provides a better structural basis for sound propagation.
[0045] Furthermore, the hammer 40 is connected to the upper support 11 via an elastic element 60, so that the hammer 40 can be elastically deformed and strike the rear end of the sounder 30.
[0046] Specifically, an elastic element 60 is provided between the hammer 40 and the upper support 11. One end of the elastic element 60 is firmly fixed to a pre-set connection point on the upper support 11, and the other end is connected to the hammer 40, ensuring that the hammer 40 can elastically deform under force and accurately strike the rear end of the sounder 30. The hammer 40 can generate displacement through elastic deformation under force to strike the rear end of the sounder 30 exposed in the housing 20. The elastic element 60 provides the hammer 40 with flexible movement space, ensuring that the striking action is precise and effective.
[0047] This application also proposes a bicycle that includes the aforementioned bell with a sound cavity. The structure and effect of the bell are described above and will not be repeated here.
[0048] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A bell with a sound cavity for mounting on a bicycle, characterized in that, The application relates to a bell with a sound cavity. The bell comprises: a bracket assembly for mounting on a bicycle; a housing mounted on the bracket assembly; a sounder partially arranged in the housing, and a rear end of the sounder exposed from the housing; a hammer elastically connected to the bracket assembly for striking the sounder exposed from the housing; wherein the housing and the bracket assembly combine to form a sound cavity with an opening at a front end of the housing; 2. The gong of claim 1, wherein the sound cavity extends from a rear end of the housing to the front end of the housing, and a front side of the sounder is spaced apart from the front end of the housing.
3. The gong of claim 2, wherein The width of the sound cavity increases in the direction from the rear end to the front end.
4. The gong of claim 2, wherein The bell further comprises a plurality of springs for suspending the sounder in the sound cavity.
5. The gong of claim 2, wherein The size of the sounder exposed outside the housing is smaller than the size of the sounder in the housing.
6. The gong of claim 5, wherein The bracket assembly comprises an upper bracket and a lower bracket assembled with each other, and the upper bracket and the lower bracket are oppositely arranged to form a receiving cavity for fixing on the bicycle.
7. The gong of claim 3, wherein The hammer is connected to the upper bracket through an elastic member, so that the hammer can be elastically deformed and strike the rear end of the sounder.
8. The gong of claim 7, wherein the sound cavity is formed by the gong body and the gong cover. The sounder is arc-shaped.
9. The gong of claim 7, wherein, The number of the springs is three, one of which is arranged near the 1 / 3 position of the length of the sounder, and the other two are oppositely arranged at the 2 / 3 position of the length of the sounder.
10. A bicycle characterized in that, The number of the springs is two, and the two springs are respectively arranged at two sides of the sounder and vertically arranged; the springs are arranged below the sounder. The application further relates to a bell with a sound cavity as claimed in any one of claims 1-9.