Multifunctional card macro drum

Abstract

A multifunctional card macro drum comprises a drum box and drum faces, the drum faces are installed on the upper face and the lower face of the drum box, the multifunctional card macro drum further comprises a snare and a deflection top block, a center shaft of the deflection top block is transversely arranged, one end of the center shaft is rotationally installed on the left side face of the drum box, and a jacking part of the deflection top block is installed on the upper portion of the center shaft and is of a protruding eccentric structure backwards. The center shaft is further provided with a shifting block, the shifting block corresponds to the lower portion of the jacking part and is provided with a shifting rod extending out of the side face of the drum box, and the position, corresponding to the shifting rod, of the side face of the drum box is provided with a guiding hollowed-out part. One end of each snare is fixed at a position where the rear side of the interior of the drum box is in contact with the upper drum surface, and the other end of each snare is fixedly mounted at the jacking part of the deflection jacking block at the front part; when the deflection top block is in a vertical state, the snare does not make contact with the drumhead, and when the deflection top block rotates to enable the jacking part to generate an eccentric jacking state, the snare is tightly attached to the drumhead. The switching structure of the device is simple, and the effect of immediately switching the Camo drum into the Bongoo drum in the playing process can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of percussion instruments, and in particular to a cajon drum with variable bongo. Background Technology

[0002] The difference between a bongo and a cajon lies in their tone. The cajon's tone is similar to that of a snare drum because it has a sounding mechanism inside that contacts the drumhead. The sounding mechanism vibrates along with the drumhead, producing a sound similar to that of a snare drum.

[0003] Currently, the cajon can be transformed into a bongo drum by changing its structure, thereby increasing the cajon's playability. However, the existing transformation structure is relatively complex and not easy to switch during performance. Therefore, there is a need to develop a cajon that can easily switch between bongo and cajon functions. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this invention is to propose a multifunctional cajon drum. The switching structure of this device is simple, and it can immediately switch the cajon drum to the effect of a bongo drum during performance.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A multifunctional cassette drum includes a drum box and a drumhead. The drum box has drumheads mounted on its upper and lower surfaces. It also includes a snare string and a deflecting top block. The central axis of the deflecting top block is arranged horizontally. One end of the central axis is rotatably mounted on the left side of the drum box. The lifting part of the deflecting top block is mounted on the upper part of the central axis. The lifting part has a rearward protruding eccentric structure.

[0007] The central shaft is also equipped with a toggle block, which corresponds to the lower part of the lifting part. The toggle block is provided with a lever extending from the side of the drum box, and a guide cutout is provided on the side of the drum box corresponding to the position of the lever.

[0008] One end of the multiple snares is fixed to the rear side of the drum box where they contact the upper drum surface, and the other end is fixed to the lifting part of the front deflection block. When the deflection block is in the vertical position, the snares are not in contact with the drum surface. When the deflection block rotates and the lifting part is in an eccentric lifting state, the snares are in close contact with the drum surface.

[0009] Preferably, a damping rod is installed on the side of the drum box, the damping rod is installed laterally on the side of the drum box, and the damping rod is located below the sounding string.

[0010] Preferably, the drum box is provided with a partition inside, which divides the drum box into two different sound zones on the left and right sides;

[0011] The rear side panels of both sound zones of the drum box 1 are provided with sound outlets.

[0012] Furthermore, the partition does not contact the bottom drum surface.

[0013] Furthermore, the guide cutout is an arc centered on the central axis, extending from bottom to top and back.

[0014] Furthermore, the drum box is provided with soundboards on both sides, one end of which is hinged to the drum box, and the inner surface of the soundboard is installed to the side of the drum box by a spring.

[0015] Furthermore, a handle is provided on the front or rear side of the drum box.

[0016] One of the above technical solutions includes the following beneficial effects: one end of the snare string of the device is fixed to the drum box, and the lifting part produces an eccentric effect due to rotation. The lifting part will lift the snare string upward. At this time, the snare string is in contact with the drum surface, and the bongo drum function is transformed into the sound effect of the cajon drum. Since only the lever is moved when in use, the lever drives the lever to move the lever block, which in turn drives the central axis to rotate, causing the lifting part to produce an eccentric effect. This switching method is very convenient and has a fast response speed. Therefore, even during the performance, the switching can be done well, and the performance will not need to be stopped due to the cumbersome switching. Attached Figure Description

[0017] Figure 1 This is an external schematic diagram of the overall structure of one embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the drum box after the upper drumhead is opened, according to one embodiment of this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the drum box according to an embodiment of the present invention, and the central axis can be seen in the figure.

[0020] The components include: drum box 1, partition 11, drumhead 2, sound string 3, deflecting top block 4, central shaft 41, lifting part 42, pry block 43, pry bar 44, guide hollow 45, sound damper 5, and soundboard 6. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] like Figure 1-3As shown, a multi-functional cassette drum includes a drum box 1 and a drumhead 2. The drum box 1 has the drumhead 2 mounted on its upper and lower surfaces. It also includes a snare string 3 and a deflecting top block 4. The central shaft 41 of the deflecting top block 4 is arranged horizontally. One end of the central shaft 41 is rotatably mounted on the left side of the drum box 1. The lifting part 42 of the deflecting top block 4 is mounted on the upper part of the central shaft 41. The lifting part 42 has a convex eccentric structure protruding backward.

[0023] The central shaft 41 is also equipped with a toggle block 43, which corresponds to the lower part of the lifting part 42. The toggle block 43 is provided with a lever 44 extending out of the side of the drum box 1. A guide cutout 45 is provided on the side of the drum box 1 corresponding to the position of the lever 44.

[0024] One end of the multiple snare strings 3 is fixed inside the rear side of the drum box 1 at the position where they contact the upper drum surface 2, and the other end is fixedly installed on the lifting part 42 of the front deflection block 4. When the deflection block 4 is in the vertical state, the snare strings are not in contact with the drum surface 2. When the deflection block 4 rotates to make the lifting part 42 eccentrically lifted, the snare strings are in close contact with the drum surface.

[0025] One end of the snare string is fixed to the drum box 1. The lifting part 42 creates an eccentric effect due to rotation, which lifts the snare string upward. At this time, the snare string 3 is in contact with the drumhead 2, and the bongo drum function is transformed into a cajon drum sound. Since only the lever 44 is moved during use, the lever 44 drives the lever block 43, which in turn drives the central shaft 41 to rotate, causing the lifting part 42 to become eccentric, this switching method is very convenient and has a fast response speed. Therefore, even during performance, the switching can be done well without having to stop playing due to cumbersome switching.

[0026] The drum box is equipped with a damping rod 5 on its side. The damping rod 5 is installed horizontally on the side of the drum box 1 and is located below the sounding string 3.

[0027] The purpose of the damper rod 5 is to prevent the snare strings from shaking and producing noise. Because the snare strings are suspended in the air when they are not in contact with the drumhead, they will shake and rub against each other during the performance, producing noise. Setting a rod horizontally to restrain them can prevent such noise.

[0028] The drum box 1 is provided with a partition 11 inside, which divides the drum box 1 into two different sound zones on the left and right sides;

[0029] The rear side panels of both sound zones of the drum box 1 are provided with sound outlets.

[0030] The partition 11 divides the drum box 1 and the corresponding drumhead into different sound-producing spaces, thus producing relative high and low frequencies.

[0031] The partition 11 does not contact the bottom drum surface 2.

[0032] The bottom of the drumhead 2 is not divided, which will produce different pitches. In addition, there is no snare string 3 at the bottom, and the bottom is a fixed bongo drum structure.

[0033] In addition, the guide cutout 45 is an arc shape centered on the central axis 41, and the guide cutout 45 extends from bottom to top and back.

[0034] The arc serves as a guide structure, making it convenient for users to adjust without needing to observe the movement. Simply move the lever 44 to the high or low position along the guide cutout to complete the adjustment.

[0035] In addition, the drum box 1 is provided with soundboards 6 on both sides. One end of the soundboard 6 is hinged to the drum box 1, and the inner surface of the soundboard 6 is installed with the side of the drum box by a spring.

[0036] In addition, a handle is provided on the front or rear side of the drum box 1.

[0037] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort.

Claims

1. A multifunctional cassette drum, comprising a drum box and drumheads, wherein the upper and lower surfaces of the drum box are fitted with drumheads, characterized in that, It also includes a snare string and a deflection top block. The central axis of the deflection top block is set horizontally, and one end of the central axis is rotatably mounted on the left side of the drum box. The lifting part of the deflection top block is mounted on the upper part of the central axis, and the lifting part has a convex eccentric structure protruding backward. The central shaft is also equipped with a toggle block, which corresponds to the lower part of the lifting part. The toggle block is provided with a lever extending from the side of the drum box, and a guide cutout is provided on the side of the drum box corresponding to the position of the lever. One end of the multiple snares is fixed to the rear side of the drum box where they contact the upper drum surface, and the other end is fixed to the lifting part of the front deflection block. When the deflection block is in the vertical position, the snares are not in contact with the drum surface. When the deflection block rotates and the lifting part is in an eccentric lifting state, the snares are in close contact with the drum surface.

2. The multi-functional card macro drum according to claim 1, characterized in that, A damping rod is installed on the side of the drum box. The damping rod is installed horizontally on the side of the drum box and is located below the sounding string.

3. The multi-functional card macro drum according to claim 1, characterized in that, The drum box is equipped with a partition inside, which divides the drum box into two different sound zones on the left and right sides; The rear side panels of both sound zones of the drum box are provided with sound outlets.

4. The multifunctional card macro drum according to claim 3, characterized in that, The partition does not contact the bottom drum surface.

5. The multi-functional card macro drum according to claim 1, characterized in that, The guide cutout is an arc centered on the central axis, extending from bottom to top and back.

6. The multi-functional card macro drum according to claim 1, characterized in that, The drum box has soundboards on both sides, one end of which is hinged to the drum box, and the inner surface of the soundboard is installed to the side of the drum box by a spring.

7. The multi-functional card macro drum according to claim 1, characterized in that, The drum box is provided with a handle on the front or rear side.

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