Huqin skin tension detection device applied to Huqin

Abstract

The utility model relates to a skin tension detection device applied to Huqin, comprising a housing, a dial plate and a watch hand, the watch hand is connected with a watch hand shaft, the watch hand shaft passes through a crossbeam and is connected with a gear, the gear is arranged on the inner wall of the housing, the gear is engaged with a rack, the rack is connected with a main shaft, and the main shaft is connected with the dial plate. The main shaft penetrates through an upper limiting block to be fixedly connected with a lower limiting block, a spring is arranged between the upper limiting block and the lower limiting block, the lower limiting block is connected with a lower adjusting bolt through the main shaft, a fixing support is arranged on one side of the cross beam, and the main shaft penetrates through the fixing support. The huqin film tension detection device can accurately detect the tension of the huqin film, is simple in structure and convenient to operate, and further improves the production efficiency of the huqin.

Description

Technical Field

[0001] The utility model relates to the technical field of membrane musical instrument detection, in particular to a musical instrument skin tension detection device applied to a huqin. Background Art

[0002] During the production process of the huqin, snake skin, python skin or other materials are used as the membrane and installed on the sound box to make a sound box. The tension of the membrane will directly affect the sound quality of the instrument. If the tension is too large, the range of sound will be small, the volume will be small, the sound quality will be sharp, and noise and other problems will be prone to occur. If the tension is too small, the sound quality will be dull, resulting in the sound quality of the instrument not meeting the expected effect. Therefore, experienced huqin makers are needed to adjust the tension of the membrane to achieve the best sound quality. However, this not only affects the production efficiency of the huqin, but also the finished huqin is prone to defective products, and new membranes need to be replaced, wasting time and energy. Therefore, how to accurately control the tension of the membrane is a problem that we urgently need to solve. Utility Model Content

[0003] In view of the above problems, the utility model provides a skin tension detection device for huqin, which can not only accurately detect the tension of the diaphragm, but also has a simple structure and is easy to operate, thereby further improving the production efficiency of the huqin.

[0004] In order to achieve the above-mentioned purpose and other related purposes, the technical solution provided by the utility model is as follows:

[0005] A device for detecting the tension of a musical instrument skin used in a huqin comprises a shell, a dial and a needle, wherein the needle is connected to a needle shaft, the needle shaft passes through a crossbeam and is connected to a gear, the gear is arranged on the inner wall of the shell, the gear is meshed with a rack, the rack is connected to a main shaft, the main shaft passes through an upper limit block and is screwed to a lower limit block, a spring is arranged between the upper limit block and the lower limit block, the lower limit block is connected to a lower adjusting bolt through the main shaft, a fixed bracket is arranged on one side of the crossbeam, and the main shaft passes through the fixed bracket.

[0006] Preferably, a limiting rod is provided on the main shaft, and the limiting rod abuts against the inner wall of the fixing bracket.

[0007] Preferably, a limiting rod is provided on the main shaft, and the limiting rod abuts against the inner wall of the fixing bracket.

[0008] Preferably, the dial is nested and connected to the housing.

[0009] Preferably, nuts are provided on both sides of the bottom of the shell, and the nuts are threadedly connected with bolts.

[0010] Preferably, the lower adjusting bolt is in a cylindrical shape.

[0011] Preferably, the watch hands are arranged above the watch dial.

[0012] Preferably, the main shaft and the rack are integrally injection molded.

[0013] Preferably, the upper limit block is arranged on the inner wall of the outer shell.

[0014] Preferably, the fixing bracket is in a U-shape.

[0015] The utility model has the following positive effects:

[0016] 1. The utility model uses the functions of the dial, the needle, the main shaft and the rack. When the main shaft is pressed on the piano skin, the tension of the piano skin can be accurately displayed. Not only can the tension of the piano skin be accurately controlled, but also the production efficiency of the huqin is improved and the defective rate of the huqin is reduced.

[0017] 2. The utility model has a light structure, reasonable design, easy to carry and can detect the tension of the piano skin. At the same time, the bolts at both ends of the device can be extended and adjusted according to the area of ​​different piano membranes to adapt to different specifications of huqin or other membrane instruments for tension detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 It is a schematic structural diagram of the bottom of the utility model.

[0021] Explanation of the numbers in the figure: 1-housing, 2-dial, 3-needle, 4-needle shaft, 5-gear, 6-rack, 7-beam, 8-spring, 9-limit rod, 10-fixed bracket, 11-upper limit block, 12-lower limit block, 13-spindle, 14-lower adjusting bolt, 15-bolt, 16-nut, 17 upper adjusting bolt. DETAILED DESCRIPTION

[0022] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0023] Example: Figure 1 or Figure 2 As shown, a skin tension detection device for huqin includes a shell 1, a dial 2 and a needle 3, wherein the needle 3 is connected to the needle shaft 4, and the needle shaft 4 passes through a cross beam 7 and is connected to a gear 5, and the gear 5 is arranged on the inner wall of the shell 2, and the gear 5 is meshed with a rack 6, and the rack 6 is connected to a main shaft 13, and the main shaft 13 passes through an upper limit block 11 and is screwed to a lower limit block 12, and a spring 8 is arranged between the upper limit block 11 and the lower limit block 12, and the lower limit block 12 is connected to a lower adjusting bolt 14 through the main shaft 13, and a fixed bracket 10 is arranged on one side of the cross beam 7, and the main shaft 13 passes through the fixed bracket 10.

[0024] In this embodiment, a limiting rod 9 is disposed on the main shaft 13 , and the limiting rod 9 abuts against the inner wall of the fixing bracket 10 .

[0025] In this embodiment, a limiting rod 9 is disposed on the main shaft 13 , and the limiting rod 9 abuts against the inner wall of the fixing bracket 10 .

[0026] In this embodiment, the dial 2 is nested and connected to the housing 1 .

[0027] In this embodiment, if Figure 3 As shown, nuts 16 are provided on both sides of the bottom of the housing 1, and the nuts 16 are threadedly connected with bolts 15. The bolts 15 can be extended or shortened to adapt to different specifications of the diaphragm.

[0028] In this embodiment, the lower adjusting bolt 14 is in a cylindrical shape.

[0029] In this embodiment, the watch hands 3 are arranged above the watch dial 2 .

[0030] In this embodiment, the main shaft 13 and the rack 6 are integrally injection molded.

[0031] In this embodiment, the upper limit block 11 is arranged on the inner wall of the housing 1 .

[0032] In this embodiment, the fixing bracket 10 is in a U-shape.

[0033] The working principle of the utility model is as follows: first, the piano skin tension detection device is zeroed, and the main shaft 13 passes through the upper limit block 11 and is screwed with the lower limit block 12. A spring 8 is provided between the upper limit block 11 and the lower limit block 12. The lower adjusting bolt 14 is twisted, and the main shaft 13 rotates. After the rotation, the lower limit block 12 moves upward (or downward), and the spring 8 is tightened (or relaxed), thereby performing a zeroing operation on the pointer 3 to improve the detection accuracy. Secondly, the piano membrane is stretched on the piano body, and the piano skin tension detection device applied to the huqin is held with both hands and suspended above the piano body. The lower adjusting bolt contacts the piano membrane and is pressed down. The main shaft is subjected to the reaction force of the tension of the piano membrane and moves upward, driving the rack to move upward, the gear rotates, and driving the pointer to rotate. The scale value pointed by the pointer is the tension value of the piano membrane. According to the tension value of the piano membrane, the piano membrane is tightened or relaxed to achieve the optimal piano membrane tension state.

[0034] In summary, the utility model can not only accurately detect the tension of the diaphragm, but also has a simple structure and is easy to operate, thereby further improving the production efficiency of the huqin or other membrane musical instruments.

[0035] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A device for detecting the tension of a huqin skin, comprising a housing (1), a dial (2) and a needle (3), characterized in that: The watch hand (3) is connected to the watch hand shaft (4), the watch hand shaft (4) passes through the cross beam (7) and is connected to the gear (5), the gear (5) is arranged on the inner wall of the housing (1), the gear (5) is meshed with the rack (6), the rack (6) is connected to the main shaft (13), the main shaft (13) passes through the upper limit block (11) and is screwed with the lower limit block (12), a spring (8) is arranged between the upper limit block (11) and the lower limit block (12), the lower limit block (12) is connected to the lower adjustment bolt (14) through the main shaft (13), a fixed bracket (10) is arranged on one side of the cross beam (7), and the main shaft (13) passes through the fixed bracket (10).

2. The instrument skin tension detection device for huqin according to claim 1 is characterized in that: An upper adjustment bolt (17) is provided on the top of the fixing bracket (10), and the upper adjustment bolt (17) is threadedly connected to the fixing bracket (10).

3. The instrument skin tension detection device for huqin according to claim 1 is characterized in that: A limiting rod (9) is provided on the main shaft (13), and the limiting rod (9) abuts against the inner wall of the fixing bracket (10).

4. The instrument skin tension detection device for huqin according to claim 1 is characterized in that: The dial (2) is nested and connected to the housing (1).

5. The instrument skin tension detection device for huqin according to claim 1 is characterized in that: Nuts (16) are provided on both sides of the bottom of the housing (1), and the nuts (16) are threadedly connected with bolts (15).

6. The instrument skin tension detection device for huqin according to claim 1 is characterized in that: The lower adjustment bolt (14) is in the shape of a cylinder.

7. The instrument skin tension detection device for huqin according to claim 1 is characterized in that: The watch hands (3) are arranged above the watch dial (2).

8. The instrument skin tension detection device for huqin according to claim 1 is characterized in that: The main shaft (13) and the rack (6) are integrally injection molded.

9. The instrument skin tension detection device for huqin according to claim 1 is characterized in that: The upper limit block (11) is arranged on the inner wall of the outer shell (1).

10. The instrument skin tension detection device for huqin according to claim 1, characterized in that: The fixing bracket (10) is in a U-shape.

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