Micro-perforated plate adjusting device for bottom drum

Abstract

The utility model belongs to the technical field of musical instrument manufacturing, and particularly relates to a micro-perforated plate adjusting device for a bottom drum. Comprising a drum body shell and a drum beating surface arranged on the front side of the drum body shell, and further comprises a micro-perforated plate arranged in the drum body shell; the supporting mechanism comprises a supporting frame arranged in the drum body shell and located behind the micro-perforated plate and a supporting sleeve arranged in the middle of the supporting frame; the translation adjusting mechanism comprises a translation threaded rod of which the front end is connected with the middle part of the micro-perforated plate and the rear end is arranged in the supporting sleeve in a penetrating manner, a belt wheel part for driving the translation threaded rod to rotate so as to change the distance between the micro-perforated plate and the drumbeat surface, and an anti-rotation part for preventing the micro-perforated plate from rotating during translation. According to the utility model, the distance between the micro-perforated plate and the drumbeat surface is changed through the translation adjusting mechanism, so that the bottom drum has the effects of sound absorption and sound quality improvement at the same time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to musical instrument manufacturing technical field, especially point to a kind of for bottom drum's microperforated plate adjusting device. BACKGROUND

[0002] In modern music performance, as a kind of percussive instrument with great expressiveness, the drum set plays a crucial role. Among them, the bottom drum is the core component of the drum set, which provides a stable beat basis for the whole music by emitting deep and powerful rhythm, not only can enhance the rhythm and beat of music, but also can create a strong musical atmosphere, so that the audience can feel the charm of music more deeply. Whether in rock, pop, jazz and other music styles, the bottom drum plays an irreplaceable role, and is an important driver of music rhythm.

[0003] However, the existing bottom drum has certain limitations in sound quality adjustment. Most of the bottom drums on the market currently only have basic sound emitting function, although they can emit sound, but there is still a lot of room for improvement in sound quality and adjustability. For example, many bottom drums cannot simultaneously achieve the sound absorption effect of microperforated plate and change the internal chamber state to improve sound quality. Microperforated plate has a unique sound absorption effect in the field of acoustics, and by reasonably designing and using microperforated plate, specific frequency sound can be effectively absorbed, noise and unnecessary resonance can be reduced, and sound can be made more pure. At the same time, changing the chamber state inside the drum body can adjust the resonance characteristics of the sound, further optimizing the sound quality. However, due to the insufficient structure design of the existing bottom drum, it is difficult to achieve the purpose of simultaneously achieving sound absorption effect and changing chamber state to improve sound quality by adjusting the distance between microperforated plate and drum surface, which limits the diversity and richness of sound quality performance of bottom drum in music performance to some extent. INVENTION CONTENTS

[0004] The utility model aims at providing a kind of for bottom drum's microperforated plate adjusting device, the distance between microperforated plate and drum surface is changed by translation adjusting mechanism, so that bottom drum has the effect of sound absorption and sound quality improvement simultaneously, to alleviate the problems mentioned in the above background art.

[0005] The utility model aims at realizing as follows, a kind of for bottom drum's microperforated plate adjusting device, including drum body shell and the drum surface being located at the front side of drum body shell, still include:

[0006] Microperforated plate is located in drum body shell;

[0007] Supporting mechanism, including support frame being located in drum body shell and being located at the rear of microperforated plate and support sleeve being located in the middle of support frame;

[0008] The translation adjusting mechanism comprises a translation screw rod with a front end connected to a middle part of the micro-perforated plate and a rear end penetrating into a support sleeve, a belt wheel component for driving the translation screw rod to rotate so as to change the distance between the micro-perforated plate and the drumming surface, and an anti-rotation component for preventing the micro-perforated plate from rotating when translating.

[0009] The utility model further sets up, the support frame includes:

[0010] The support outer ring is fixedly connected to the inner wall of the drum body shell;

[0011] The support inner ring is arranged at the middle part of the support outer ring, and the support inner ring is sleeved on the circumferential side of the support sleeve;

[0012] The support strips are uniformly arranged between the support outer ring and the support inner ring in the circumferential direction.

[0013] The utility model further sets up, the belt wheel component includes:

[0014] The driven belt wheel is arranged on the front side of the support sleeve, and the driven belt wheel has an internal thread part matched with the translation screw rod;

[0015] The driving belt wheel is located outside the drum body shell and connected with the drum body shell, and a belt for transmitting power is arranged between the driving belt wheel and the driven belt wheel;

[0016] The operating rod is arranged on the driving belt wheel for driving the driving belt wheel to rotate.

[0017] The utility model further sets up, a scale component is arranged between the operating handle and the driving belt wheel;

[0018] The indicating disc is sleeved on the operating rod, and the indicating disc rotates with the rotation of the operating rod;

[0019] The scale disc is sleeved on the operating rod and located between the driving belt wheel and the indicating disc.

[0020] The utility model further sets up, the anti-rotation component includes:

[0021] The anti-rotation rod is connected with the support strip at the rear end and extends forward at the front end;

[0022] The anti-rotation hole is arranged on the micro-perforated plate, and the anti-rotation hole corresponds to the anti-rotation rod.

[0023] The utility model further sets up, the anti-rotation rod is provided with a limiting plate for preventing the micro-perforated plate from exceeding the maximum translation distance at the front part.

[0024] The utility model further sets up, the locking nut for preventing the driving belt wheel from continuing to rotate is sleeved on the operating rod, and the operating rod has an external thread segment matched with the locking nut on the surface.

[0025] By adopting the technical scheme, the bass drum can be obtained.

[0026] 1. By cooperating the micro-perforated plate, the supporting mechanism and the translation adjusting mechanism, the distance between the micro-perforated plate and the drum surface can be changed by rotating the translation screw rod, and then the sound absorption effect of the micro-perforated plate and the state of the internal cavity of the drum body shell are changed, so that the flexibility and diversity of the sound quality adjustment of the bass drum are improved.

[0027] 2. By cooperating the driven pulley and the translation screw rod, the driving pulley transmits power through the belt, and the operation rod drives the driving pulley to rotate, so that the position of the micro-perforated plate is conveniently driven and adjusted, and the adjustment efficiency is improved.

[0028] 3. By connecting the anti-rotation rod rear end and the supporting strip, extending the anti-rotation rod front end, and opening the anti-rotation hole corresponding to the anti-rotation rod on the micro-perforated plate, the rotation of the micro-perforated plate during translation is prevented, and the accuracy and stability of the adjustment are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0029] Fig. 1 is a schematic diagram of the three-dimensional structure of the utility model;

[0030] Fig. 2 is a schematic diagram of the three-dimensional structure of the internal cavity of the drum body shell of the utility model;

[0031] Fig. 3 is an exploded perspective view of the internal cavity of the drum body shell of the utility model.

[0032] In the drawings, the reference signs are: 1, drum body shell; 2, drum surface; 3, micro-perforated plate; 4, supporting mechanism; 40, supporting frame; 400, supporting outer ring; 401, supporting inner ring; 402, supporting strip; 41, supporting sleeve; 5, translation adjusting mechanism; 50, translation screw rod; 51, pulley component; 510, driven pulley; 511, internal thread part; 512, driving pulley; 513, belt; 514, operation rod; 52, anti-rotation component; 520, anti-rotation rod; 521, anti-rotation hole; 6, scale component; 60, indicator disc; 61, scale disc; 7, limiting plate; 8, locking nut; 9, external thread section. DETAILED DESCRIPTION

[0033] The utility model will be further described in conjunction with the drawings by specific embodiments, referring to Figs. 1-3 :

[0034] Embodiment 1:

[0035] The embodiment provides a micro-perforated plate adjusting device for bass drum, which comprises a drum body shell 1 and a drum surface 2 arranged on the front side of the drum body shell 1, and further comprises:

[0036] a micro-perforated plate 3 arranged in the drum body shell 1.

[0037] The support mechanism 4 includes a support frame 40 arranged in the drum shell 1 and located behind the micro-perforated plate 3, and a support sleeve 41 arranged in the middle of the support frame 40.

[0038] The translation adjustment mechanism 5 includes a translation threaded rod 50 with the front end connected to the middle of the micro-perforated plate 3 and the rear end arranged in the support sleeve 41, a belt wheel component 51 for driving the translation threaded rod 50 to rotate and change the distance between the micro-perforated plate 3 and the drum surface 2, and an anti-rotation component 52 for preventing the micro-perforated plate 3 from rotating when translating.

[0039] The micro holes on the micro-perforated plate 3 can absorb and adjust sound, change the propagation and resonance characteristics of sound in the drum body, and thus affect the sound quality of the bass drum. By adjusting the distance between the micro-perforated plate 3 and the drum surface 2, the sound absorption effect and the cavity state in the drum body can be further changed to adjust the sound quality. The micro-perforated plate 3 is generally a circular thin plate with uniformly distributed micro holes. The shape of the micro-perforated plate 3 matches the inner wall of the drum shell 1, and the micro-perforated plate 3 is connected to the middle of the translation adjustment mechanism 5 through the translation threaded rod 50 in the translation adjustment mechanism 5, realizing the connection and linkage with the translation adjustment mechanism 5.

[0040] The support frame 40 provides support for the micro-perforated plate 3 and the support sleeve 41, ensures their stable position in the drum shell 1, and ensures the normal operation of the entire adjustment device. It is arranged in the drum shell 1 and located behind the micro-perforated plate 3.

[0041] The support sleeve 41 provides support and guidance for the translation threaded rod 50, enabling it to rotate and translate stably. The support sleeve 41 is generally cylindrical with a space inside that matches the translation threaded rod 50. The support sleeve 41 is closely matched with the support inner ring 401 of the support frame 40, and is generally arranged in the middle of the support frame 40 through interference fit or other fixing methods, and is fixed in the drum shell 1 through the support frame 40.

[0042] The front end of the translation threaded rod 50 is connected to the middle of the micro-perforated plate 3, and the rotation of the translation threaded rod 50 realizes the translation of the micro-perforated plate 3, thereby changing the distance between the micro-perforated plate 3 and the drum surface 2. The translation threaded rod 50 is a rod-shaped structure with threads, and the front end is firmly connected to the middle of the micro-perforated plate 3 through welding, threaded connection or other methods, and the rear end is matched with the gap inside the support sleeve 41 to smoothly pass through the support sleeve 41.

[0043] The belt wheel component 51 is used to drive the translation threaded rod 50 to rotate, and the position adjustment of the micro-perforated plate 3 is realized through power transmission.

[0044] The anti-rotation component 52 is used to prevent the micro-perforated plate 3 from rotating when translating, ensuring the accurate direction of the micro-perforated plate 3 translation, and thus more accurately adjusting the distance between the micro-perforated plate 3 and the drum surface 2.

[0045] Embodiment 2:

[0046] The embodiment provides a micro-perforated plate adjusting device for a bottom drum, in addition to comprising the technical solutions in the above embodiment, and has the following technical features.

[0047] The support frame 40 comprises:

[0048] A support outer ring 400 is fixedly connected to the inner wall of the drum body shell 1;

[0049] A support inner ring 401 is arranged at the middle part of the support outer ring 400, and the support inner ring 401 is sleeved on the circumferential side of the support sleeve 41;

[0050] Supporting strips 402 are uniformly arranged between the support outer ring 400 and the support inner ring 401 in the circumferential direction.

[0051] The support outer ring 400 serves as a connecting component of the support frame 40 and the drum body shell 1, stably fixes the entire support frame 40 on the inner wall of the drum body shell 1, provides a stable support basis for the support inner ring 401 and the supporting strips 402 inside, ensures the position of the entire support frame 40 in the drum body, and thus guarantees the stability of the micro-perforated plate 3 adjusting device. The support outer ring 400 is usually annular in structure, and the outer diameter thereof is matched with the inner diameter of the drum body shell 1, so that the support outer ring 400 is tightly fitted and fixed to the drum body shell 1. The support outer ring 400 can be fixedly connected to the inner wall of the drum body shell 1 by means of screws, welding or buckling.

[0052] The support inner ring 401 is mainly used for sleeving the circumferential side of the support sleeve 41, providing positioning and support for the support sleeve 41, ensuring the accurate position of the support sleeve 41 in the drum body, and thus guaranteeing the stable rotation and translation of the translation screw rod 50, and is a key link for supporting and guiding in the entire micro-perforated plate 3 adjusting device. The support inner ring 401 is also annular in structure, and the inner diameter thereof is matched with the outer diameter of the support sleeve 41, so that the support inner ring 401 is tightly fitted. The support inner ring 401 can be tightly connected to the support sleeve 41 by means of interference fit, key connection or pin connection.

[0053] The supporting strips 402 are uniformly arranged between the support outer ring 400 and the support inner ring 401 in the circumferential direction, play a role in connection and reinforcement, connect the support outer ring 400 and the support inner ring 401 into a whole, and enhance the structural strength and stability of the support frame 40. Meanwhile, the supporting strips 402 provide a connecting point for the anti-rotation component 52, ensure that the anti-rotation rod 520 can be stably fixed to the support frame 40, and prevent the micro-perforated plate 3 from rotating during translation. The supporting strips 402 are usually long strip structures, and can be connected to the support outer ring 400 and the support inner ring 401 respectively by means of welding, screw connection or slot cooperation.

[0054] Embodiment 3:

[0055] The embodiment provides a micro-perforated plate adjusting device for a bass drum.

[0056] The belt wheel component 51 comprises:

[0057] The driven belt wheel 510 is arranged on the front side of the supporting sleeve 41, and the driven belt wheel 510 is provided with an internal thread part 511 matched with the translation screw rod 50;

[0058] The driving belt wheel 512 is arranged outside the drum shell 1 and connected with the drum shell 1, and the driving belt wheel 512 and the driven belt wheel 510 are provided with a belt 513 for transmitting power;

[0059] The operating rod 514 is arranged on the driving belt wheel 512 and used for driving the driving belt wheel 512 to rotate.

[0060] The power of the driven belt wheel 510 is converted into the rotation of the translation screw rod 50, and then the translation of the micro-perforated plate 3 is realized, so that the distance between the micro-perforated plate 3 and the drumming surface 2 is changed, the sound quality of the bass drum is adjusted, the power of the driven belt wheel 510 is generally circular disc structure, and the central part is provided with the internal thread part 511 matched with the translation screw rod 50, so as to be threadedly connected with the translation screw rod 50. The driven belt wheel 510 is arranged on the front side of the supporting sleeve 41 and adjacent to the supporting sleeve 41, and is coaxially arranged with the translation screw rod 50, so as to ensure the stability and accuracy of power transmission. The driven belt wheel 510 can be threadedly connected with the translation screw rod 50 through the internal thread part 511.

[0061] The driving belt wheel 512 is the power input end of the whole belt wheel component 51, the player drives the driving belt wheel 512 to rotate through the operating rod 514, and then transmits the power to the driven belt wheel 510 through the belt 513, so as to realize the adjustment of the position of the micro-perforated plate 3. The driving belt wheel 512 is also circular disc structure, and the circumferential surface is provided with a groove matched with the belt 513, so as to install the belt 513 and realize power transmission. The driving belt wheel 512 is arranged outside the drum shell 1 and connected with the drum shell 1, so as to facilitate the operation of the player. The driving belt wheel 512 can be connected with the drum shell 1 through a supporting plate or the like.

[0062] The operating rod 514 provides a force point for the player to operate the driving belt wheel 512, the player drives the driving belt wheel 512 to rotate through the rotation of the operating rod 514, so as to control the translation of the micro-perforated plate 3. The operating rod 514 is generally rod-shaped structure, one end of which is connected with the driving belt wheel 512, and the other end is convenient for the player to hold and operate. The operating rod 514 can be fixedly connected with the driving belt wheel 512 through welding, key connection or screw connection, so as to ensure that the operating rod 514 can drive the driving belt wheel 512 to synchronously rotate when the operating rod 514 rotates.

[0063] Embodiment 4:

[0064] The embodiment provides a micro-perforated plate adjusting device for a bass drum.

[0065] A scale component 6 is arranged between the operation handle and the drive pulley 512.

[0066] An indicating disc 60 is sleeved on the operation lever 514, and rotates with the rotation of the operation lever 514.

[0067] A scale disc 61 is sleeved on the operation lever 514 and located between the drive pulley 512 and the indicating disc 60.

[0068] The indicating disc 60 is used for indicating the rotation position of the operation lever 514. Since the rotation of the operation lever 514 drives the micro-perforated plate 3 to move, the indicating disc 60 can intuitively show the performer the approximate position of the micro-perforated plate 3, so that the distance between the micro-perforated plate 3 and the drum surface 2 can be more accurately controlled, and the sound quality of the bass drum can be accurately adjusted. The indicating disc 60 is generally a circular disc structure, and the disc surface is generally marked with a prominent indicating mark, such as a pointer or a special mark, so as to be observed. The indicating disc 60 can be fixed with the operation lever 514 through interference fit, key connection or the use of set screws, so as to ensure the stability of the connection and the accuracy of synchronous rotation.

[0069] The scale disc 61 provides scale reference for the indicating disc 60, and is marked with accurate scale values. The performer can know the degree of rotation of the operation lever 514 by observing the scale on the scale disc 61 corresponding to the mark on the indicating disc 60, and then know the moving distance of the micro-perforated plate 3, so that the sound quality adjusting process is more quantitative and accurate. The scale disc 61 is also a circular disc, and the circumferential surface is uniformly marked with scale lines and corresponding values. The interval of the scale lines and the accuracy of the values are designed according to actual adjusting requirements. The scale disc 61 can be sleeved on the operation lever 514 through the center hole, and then fixed at a suitable position on the operation lever 514 by using a clasp ring, a nut or other fixing devices, so as to ensure that the scale disc 61 does not displace during operation.

[0070] Embodiment 5:

[0071] The embodiment provides a micro-perforated plate adjusting device for a bass drum.

[0072] The anti-rotation component 52 comprises:

[0073] The anti-rotation rod 520 is connected at the rear end to the support strip 402 and extends forward at the front end.

[0074] Anti-rotation hole 521 is arranged on the micro-perforated plate 3, and the anti-rotation hole 521 corresponds to the anti-rotation rod 520.

[0075] The anti-rotation rod 520 prevents the micro-perforated plate 3 from rotating during translation, ensures that the micro-perforated plate 3 only moves linearly along the axis of the translation threaded rod 50, and thus ensures the accuracy of the distance adjustment between the micro-perforated plate 3 and the drum surface 2, and maintains the accuracy and stability of the tone adjustment. Meanwhile, the front part is provided with a limiting plate 7 to prevent the micro-perforated plate 3 from exceeding the maximum translation distance and avoid damaging the equipment. The anti-rotation rod 520 is generally in the form of an elongated rod, the rear end is connected to the support strip 402 and located inside the drum body, and the front end passes through the corresponding anti-rotation hole 521 on the micro-perforated plate 3 and is parallel to the translation threaded rod 50. The rear end of the anti-rotation rod 520 and the support strip 402 can be fixed by welding, bolt connection or clamping groove cooperation.

[0076] Embodiment 6:

[0077] The embodiment provides a micro-perforated plate adjusting device for a bass drum, which comprises the technical solutions of the above-mentioned embodiments and has the following technical features.

[0078] The front part of the anti-rotation rod 520 is provided with a limiting plate 7 for preventing the micro-perforated plate 3 from exceeding the maximum translation distance.

[0079] The limiting plate 7 is used to limit the translation range of the micro-perforated plate 3 and prevent it from exceeding the maximum translation distance. During the adjustment of the micro-perforated plate 3, if it exceeds the safe range, it may collide with other parts inside the drum body and cause damage. The limiting plate 7 can effectively prevent such situations from occurring and ensure the normal operation and service life of the entire adjusting device. The limiting plate 7 is generally in the form of a flat plate and is generally circular or square. The limiting plate 7 is located at the front part of the anti-rotation rod 520 and is close to the micro-perforated plate 3. When the micro-perforated plate 3 translates with the translation threaded rod 50, the limiting plate 7 blocks the further movement of the micro-perforated plate 3 when it is about to reach the maximum translation distance. The limiting plate 7 can be connected to the front end of the anti-rotation rod 520 by welding or threaded connection.

[0080] Embodiment 7:

[0081] The embodiment provides a micro-perforated plate adjusting device for a bass drum, which comprises the technical solutions of the above-mentioned embodiments and has the following technical features.

[0082] The operating rod 514 is sleeved with a locking nut 8 for preventing the driving pulley 512 from continuing to rotate, and the surface of the operating rod 514 has an external thread segment 9 matched with the locking nut 8.

[0083] The locking nut 8 is used to prevent the driving pulley 512 from continuing to rotate, and when the player adjusts the micro-perforated plate 3 to the appropriate position, the locking nut 8 is tightened to cooperate with the outer threaded section 9 on the operating rod 514 to generate a friction force, so that the driving pulley 512 is fixed at the current position, and the driving pulley 512 is prevented from rotating due to misoperation or other external forces, thereby ensuring that the position of the micro-perforated plate 3 is stable, and the adjusted bass drum sound quality is maintained. The locking nut 8 is circular, has internal threads matched with the external threads of the operating rod 514, and has a structure on the side surface, such as a hexagonal edge, which is convenient for tightening and loosening, so that a wrench or other tools can be conveniently operated. The locking nut 8 can be threadedly connected to the outer threaded section 9 on the surface of the operating rod 514 through the internal threads.

[0084] The above embodiments are only preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A micro-perforated panel regulating device for a bottom drum, comprising a drum body housing (1) and a drum hitting surface (2) provided at the front side of the drum body housing (1), characterized in that , also includes: Micro-perforated plate (3) is arranged in the drum shell (1); Support mechanism (4) includes support frame (40) arranged in the drum shell (1) and located behind the micro-perforated plate (3), and support sleeve (41) arranged in the middle of the support frame (40); Translation adjustment mechanism (5) includes translation screw rod (50) with front end connected to the middle of the micro-perforated plate (3) and rear end arranged in the support sleeve (41), belt wheel component (51) for driving the translation screw rod (50) to rotate to change the distance between the micro-perforated plate (3) and the drum surface (2), and anti-rotation component (52) for preventing the micro-perforated plate (3) from rotating when translating.

2. A micro-perforated panel (3) adjustment device for a floor drum according to claim 1, characterized in that, The support frame (40) comprises: Support outer ring (400) is fixedly connected to the inner wall of the drum shell (1); Support inner ring (401) is arranged in the middle of the support outer ring (400), and the support inner ring (401) is arranged on the side of the support sleeve (41); Supporting strips (402) are uniformly arranged between the support outer ring (400) and the support inner ring (401) in the circumferential direction.

3. A micro-perforated panel (3) adjustment device for a floor drum according to claim 1, characterized in that, The belt wheel component (51) comprises: Driven pulley (510) is arranged on the front side of the support sleeve (41), and the driven pulley (510) has an inner thread part (511) matched with the translation screw rod (50); Drive pulley (512) is located outside the drum shell (1) and connected with the drum shell (1), and a belt (513) for transmitting power is arranged between the drive pulley (512) and the driven pulley (510); Operating rod (514) is arranged on the drive pulley (512) for driving the drive pulley (512) to rotate.

4. A micro-perforated panel (3) adjustment device for a floor drum according to claim 3, characterized in that, A scale component (6) is arranged between the operating rod and the drive pulley (512); The indicating disc (60) is arranged on the operating rod (514) and rotates with the rotation of the operating rod (514); The scale disc (61) is arranged on the operating rod (514) and located between the drive pulley (512) and the indicating disc (60).

5. A micro-perforated panel (3) adjustment device for a floor drum according to claim 1, characterized in that, The anti-rotation component (52) comprises: Anti-rotation rod (520) with rear end connected to the support strip (402) and front end extending forward; Anti-rotation hole (521) is arranged on the micro-perforated plate (3), and the anti-rotation hole (521) corresponds to the anti-rotation rod (520).

6. A micro-perforated panel (3) adjustment device for a floor drum according to claim 5, characterized in that, The front part of the anti-rotation rod (520) is provided with a limiting plate (7) for preventing the micro-perforated plate (3) from exceeding the maximum translation distance.

7. A micro-perforated panel (3) adjustment device for a floor drum according to claim 3, characterized in that, A locking nut (8) is arranged on the operating rod (514) for preventing the drive pulley (512) from continuing to rotate, and the surface of the operating rod (514) has an outer thread segment (9) matched with the locking nut (8). A locking nut (8) is arranged on the operating rod (514) for preventing the drive pulley (512) from continuing to rotate, and the surface of the operating rod (514) has an outer thread segment (9) matched with the locking nut (8).

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