A drum with convenient tuning
By combining hinges, pull rods, wedges, and adjusting bolts, the problem of complex structure and high cost of existing drum tuning devices is solved, achieving a simple and low-cost tuning effect and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LANGFANG YUNDI MUSICAL INSTR CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-19
AI Technical Summary
Existing drum tuning devices are complex in structure and expensive to manufacture.
It adopts a combination structure of hinges, pull rods, wedges and adjusting bolts. The tightness of the drumhead is adjusted by moving the wedge between the support ring and the end face of the drum cavity, so as to achieve the tuning function.
It achieves simple and low-cost tuning effects, extends service life, and reduces structural wear.
Smart Images
Figure CN224383889U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drum product technology, specifically to a drum that is easy to tune. Background Technology
[0002] The drum is a percussion instrument with a long history, playing an important role in musical performances as well as celebrations and ceremonies.
[0003] The basic structure of a drum includes a drum cavity and a drumhead covering the end of the drum cavity. Sound is produced by striking the drumhead to cause it to vibrate. Although it is tuned when it leaves the factory, it still requires frequent fine-tuning due to changes in ambient temperature and humidity. To address this, Chinese invention patent CN111063325B discloses a built-in tuning device for a traditional drum, including a tuning support ring, a drumhead, and a tuning drum body. A drive gear shaft is rotatably mounted in each adjustment hole. A drive gear is fixedly connected to the left end of the drive gear shaft, and driven gears mesh with both the drive gear and driven gear. A tuning support rod is threaded inside the driven gear shaft, and a tuning support ring is fixed to the top of the tuning support rod. When adjusting the pitch, rotating the adjustment rod causes the drive gear to rotate, and the driven gear shaft, through a screw drive, moves the support shaft towards the tuning support ring, thus tightening the drumhead. Conversely, it loosens the drumhead, thereby achieving tuning. However, the aforementioned tuning device has a complex structure and high manufacturing cost. Utility Model Content
[0004] To address the aforementioned shortcomings, the technical problem to be solved by this invention is to provide a drum that is easy to tune, thereby solving the problems of complex structure and high manufacturing cost of existing technologies.
[0005] Therefore, this application provides a conveniently tuned drum, including a drum cavity, a drumhead, and a support ring. The support ring is placed on the end face of the drum cavity, and the drumhead covers the support ring and is fixed to the outer surface of the drum cavity. The drum also includes: a plurality of tuning devices evenly distributed along the circumference of the drum cavity inside the drum cavity, the tuning devices comprising:
[0006] The hinge has its lower half fixed to the inner wall of the drum cavity, and its upper half is fixed with a sliding sleeve.
[0007] A pull rod has a wedge at its upper end, the tip of which is inserted between the support ring and the end face of the drum cavity. The lower end of the pull rod is slidably disposed in the sliding sleeve. The pull rod has a threaded hole.
[0008] An adjusting bolt is provided, with its inner end inserted into the threaded hole for rotational engagement. An adjusting hole is provided on the side wall of the drum cavity, and the outer end of the adjusting bolt protrudes through the adjusting hole.
[0009] Based on the above technical solution, the tip of the wedge is inserted between the support ring and the end face of the drum cavity. By adjusting the bolt and spring to pull the lever closer or push it further away, the wedge can be driven to go deeper or slide out along the gap between the support ring and the end face of the drum cavity, thereby increasing or decreasing the gap between the support ring and the end face of the drum cavity, thus tightening or loosening the drum skin and realizing the tuning function. The structure is simple and the manufacturing cost is low.
[0010] In the above technical solution, preferably, an upper sliding sleeve is fixedly provided on the wedge block, and the upper end of the pull rod is slidably disposed within the upper sliding sleeve. Both ends of the pull rod can slide along the lower and upper sliding sleeves respectively, and the hinge automatically adjusts its angle. Thus, the tuning device can automatically adjust its length and angle to eliminate the pulling force on the inner wall of the drum cavity, preventing the hinge from loosening after prolonged use and extending its service life.
[0011] In the above technical solution, preferably, a first metal washer is fixedly provided on the bottom surface of the support ring.
[0012] In the above technical solution, preferably, a second metal washer is provided on the end face of the drum cavity.
[0013] In the above technical solution, preferably, the outer end of the adjusting bolt adopts an internal hexagonal structure.
[0014] As can be seen from the above technical solution, the conveniently tuned drum provided by this utility model solves the problems of complex structure and high manufacturing cost in the prior art. Compared with the prior art, this utility model has the following beneficial effects:
[0015] Multiple tuning devices are evenly distributed around the circumference of the drum cavity. Each tuning device includes a hinge, a pull rod, and an adjusting bolt. The pull rod has a wedge at its upper end, the tip of which is inserted between the support ring and the end face of the drum cavity. The adjusting bolt has its inner end inserted into a threaded hole for rotational engagement. The side wall of the drum cavity has an adjustment hole, through which the outer end of the adjusting bolt protrudes. By pulling the pull rod closer or further away using the adjusting bolt and spring, the wedge can be moved deeper or slide out along the gap between the support ring and the end face of the drum cavity, thereby increasing or decreasing the gap between the support ring and the end face of the drum cavity, thus tightening or loosening the drumhead to achieve the tuning function. The structure is simple and the manufacturing cost is low. Attached Figure Description
[0016] 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 of this utility model or the prior art will be briefly introduced and explained 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 these drawings without creative effort.
[0017] Figure 1 A cross-sectional view of the drum for convenient tuning provided by this utility model;
[0018] Figure 2 for Figure 1 Enlarged view of part A in the image;
[0019] Figure 3 This is a diagram showing the arrangement of the tuning device in this utility model;
[0020] Figure 4 This is a schematic diagram of the device consisting of the drum cavity and the support ring in this utility model;
[0021] Figure 5 This is a schematic diagram of the tuning device in this utility model;
[0022] Figure 6 for Figure 5 An exploded view of the tuning device shown.
[0023] Figure 7 This is a schematic diagram of the flowerpot drum shape of this utility model;
[0024] Figure 8 This is a schematic diagram of the main drum form of this utility model;
[0025] Figure 9 This is a schematic diagram of the southern drum form of this utility model.
[0026] Figures 1-9 The correspondence between the parts is as follows:
[0027] Drum cavity 10, drumhead 20, support ring 30, tuning device 40;
[0028] Adjustment hole 11;
[0029] Hinge 41, pull rod 42, adjusting bolt 43, wedge 44, sliding sleeve 45, upper sliding sleeve 46, spring 47. Detailed Implementation
[0030] 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 embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0031] To provide a clearer explanation and description of the technical solution and implementation method of this utility model, several preferred specific embodiments for implementing the technical solution of this utility model are introduced below.
[0032] It should be noted that the directional terms such as "inner" and "outer", "front" and "back" and "left" and "right" in this article are based on the product's usage status. Obviously, the use of these directional terms does not limit the scope of protection of this solution.
[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the present invention provides a conveniently tuned drum, including a drum cavity 10, a drumhead 20, a support ring 30, and multiple tuning devices 40.
[0034] A support ring 30 is placed on the end face of the drum cavity 10, and the drumhead 20 covers the support ring 30 and is fixed to the outer surface of the drum cavity 10. Multiple tuning devices 40 are evenly distributed around the circumference of the drum cavity 10 inside the drum cavity 10.
[0035] like Figure 5 , Figure 6 As shown, the tuning device 40 includes a hinge 41, a pull rod 42, an adjusting bolt 43, and a wedge 44.
[0036] The lower half of hinge 41 is fixed to the inner wall of the drum cavity 10. A sliding sleeve 45 is fixedly provided on the upper half of hinge 41, and an upper sliding sleeve 46 is fixedly provided on wedge block 44. The two ends of pull rod 42 are slidably disposed in the sliding sleeve 45 and the upper sliding sleeve 46, respectively. The pull rod 42 is provided with a threaded hole, and the inner end of adjusting bolt 43 is inserted into the threaded hole for rotational engagement.
[0037] An adjustment hole 11 is provided on the side wall of the drum cavity 10, and the outer end of the adjustment bolt 43 extends through the adjustment hole 11. The outer end of the adjustment bolt 43 adopts an internal hexagonal structure, and the adjustment bolt 43 can be rotated by an internal hexagonal wrench.
[0038] The tip of the wedge 44 is inserted between the support ring 30 and the end face of the drum cavity 10. A spring 47 is sleeved on the adjusting bolt 43. The two ends of the spring 47 abut against the inner wall of the drum cavity 10 and the side of the pull rod 42 facing the inner wall of the drum cavity 10, respectively, to achieve the reset function.
[0039] Rotating the adjusting bolt 43 can pull the pull rod 42 closer to the inner wall of the drum cavity 10, or push the pull rod 42 away from the inner wall of the drum cavity 10 under the action of the spring 47. This can cause the wedge block 44 to move deeper or slide out along the gap between the support ring 30 and the end face of the drum cavity 10, thereby increasing or decreasing the gap between the support ring 30 and the end face of the drum cavity 10, and thus tightening or loosening the drum skin 20 to achieve the tuning function.
[0040] Specifically, the method of using this utility model is as follows:
[0041] When the pitch feels blurry and lacks power, turn the adjusting bolt 43 clockwise with an Allen wrench to pull the wedge block 44 toward the inner wall of the drum cavity 10, causing the support ring 30 to rise and tighten the drumhead 20, thereby making the pitch clearer and the sense of power stronger.
[0042] When the sound is sharp and piercing, turn the adjusting bolt 43 counterclockwise with an Allen wrench. The wedge 44 moves away from the inner wall of the drum cavity 10 under the action of the spring 47, causing the support ring 30 to drop downward and loosen the drum skin 20, thereby gradually making the pitch richer.
[0043] In this application, the two ends of the pull rod 42 are slidably disposed within the lower sliding sleeve 45 and the upper sliding sleeve 46. When the pull rod 42 is pulled, the two ends of the pull rod 42 can slide along the lower sliding sleeve 45 and the upper sliding sleeve 46 respectively, and the hinge 41 automatically adjusts its angle. As a result, the tuning device 40 can automatically adjust its length and angle to eliminate the pulling force on the inner wall of the drum cavity 10, prevent the hinge 41 from loosening after long-term use, and extend its service life.
[0044] In addition, a first metal washer is fixedly provided on the bottom surface of the support ring 30 in this application to reduce wear on the support ring 30. A second metal washer can also be provided on the end face of the drum cavity 10 to further reduce wear between the support ring 30 and the end face of the drum cavity 10, and at the same time make adjustment easier.
[0045] This application solution can be applied to various models of products such as flowerpot drums, large drums, and southern drums. Figure 7 , Figure 8 , Figure 9 As shown.
[0046] Depending on the diameter of the drum cavity, the tuning device 40 can be set with 3-6 units.
[0047] Based on the above description of specific embodiments, the drum that is easy to tune provided by this utility model has the following advantages compared with the prior art:
[0048] First, the combination of spiral and wedge structures allows for adjustment of the drumhead tension or looseness, resulting in a simple structure and easy use.
[0049] Second, all structural components of the tuning device are ordinary components, which have lower manufacturing costs compared to gear mechanisms.
[0050] Finally, it should be noted that the terms "comprising," "including," or any other variations thereof as used herein are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a…" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0051] This utility model is not limited to the above-described preferred embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model.
Claims
1. A drum with easy tuning, comprising a drum shell, a drumhead and a support ring, said support ring being placed on an end face of said drum shell, said drumhead being fixed to an outer surface of said drum shell after covering said support ring, characterized in that, Also includes: Multiple tuning devices are evenly distributed around the circumference of the drum cavity inside the drum cavity, and the tuning devices include: The hinge has its lower half fixed to the inner wall of the drum cavity, and its upper half is fixed with a sliding sleeve. A pull rod has a wedge at its upper end, the tip of which is inserted between the support ring and the end face of the drum cavity. The lower end of the pull rod is slidably disposed in the sliding sleeve. The pull rod has a threaded hole. An adjusting bolt is provided, with its inner end inserted into the threaded hole for rotational engagement. An adjusting hole is provided on the side wall of the drum cavity, and the outer end of the adjusting bolt protrudes through the adjusting hole.
2. The easily tuned drum of claim 1, wherein, An upper sliding sleeve is fixedly provided on the wedge block, and the upper end of the pull rod is slidably disposed within the upper sliding sleeve.
3. The easily tuned drum of claim 1, wherein, A first metal washer is fixedly installed on the bottom surface of the support ring.
4. The easily tuned drum of claim 1, wherein, The second metal washer is provided on the end face of the drum cavity.
5. The easily tuned drum of claim 1, wherein, The outer end of the adjusting bolt has an internal hexagonal structure.