Pillow for electronic Chinese zither

Abstract

The utility model relates to a pillow for an electronic Chinese zither, which belongs to the field of electronic Chinese zither and comprises a pillow body, the pillow body comprises an abutting strip, the upper surface of the abutting strip is provided with a plurality of accommodating grooves at intervals along the length direction of the abutting strip, and the lower end of the abutting strip is provided with a pressing strip. The two ends of the pressing strip are flush with the two ends of the abutting strip respectively to form a front side end and a rear side end, and the width of the lower surface of the pressing strip is gradually reduced in the direction from the front side end to the rear side end. On the premise that the pressure generated by the thick strings is larger than the pressure generated by the thin strings, according to the piezoelectric effect of piezoelectric ceramics, the piezoelectric ceramic sound pickup can reduce the size difference of voltages generated by the strings with different thicknesses on the piezoelectric ceramic sound pickup, and the purpose of reducing the size difference of sounds generated by the strings with different thicknesses is achieved.

Description

Technical Field

[0001] The utility model relates to the field of electronic guzheng, in particular to a nut for the electronic guzheng. Background Art

[0002] The electronic guzheng is different from the traditional guzheng. It can pick up the vibration of the strings through a piezoelectric ceramic pickup and convert the vibration signal of the strings into an electrical signal. Therefore, the electronic guzheng can be directly connected to an external speaker through its interface to achieve the purpose of sound amplification.

[0003] The nut of the electronic guzheng is located between the strings and the piezoelectric ceramic pickup. It is used to fix the position of the strings and transmit the vibration of the strings to the piezoelectric ceramic pickup. Among them, because the strings on the guzheng have different thicknesses, when the strings are plucked with the same force, the thicker the strings, the greater the pressure applied to the nut. According to the piezoelectric effect: the voltage output by the piezoelectric ceramic pickup is positively correlated with the product of pressure and area. Therefore, when thicker strings are plucked, the voltage generated by the piezoelectric ceramic pickup is higher, and the sound output by the electrical signal with a higher voltage is louder. Therefore, when playing the electronic guzheng, the sound of the thick strings will be louder than that of the thin strings, which will have an adverse effect on the performance of the electronic guzheng.

[0004] Based on this, the utility model provides a nut for an electronic guzheng, which is used to reduce the difference in voltage generated by thick strings and thin strings on a piezoelectric ceramic pickup, that is, to reduce the difference in sound volume between the thick strings and thin strings during performance, thereby achieving the purpose of improving the performance effect of the electronic guzheng. Utility Model Content

[0005] Based on this, the utility model provides a nut for an electronic guzheng, comprising a nut body, the nut body comprising an abutment strip, the upper surface of the abutment strip having a plurality of accommodating grooves spaced apart along the length direction of the abutment strip, a pressure strip being arranged at the lower end of the abutment strip, the two ends of the pressure strip being respectively arranged flush with the two ends of the abutment strip to form a front side end and a rear side end, and the width of the lower surface of the pressure strip gradually decreases along the direction from the front side end to the rear side end.

[0006] The nut body of the utility model is installed on an electronic guzheng for use, and the receiving groove provided on the upper surface of the abutment strip penetrates the abutment strip along the width direction of the abutment strip, and is used to receive and fix the strings of the electronic guzheng, and the pressure strip located at the lower end of the abutment strip is used to adhere to and press on the piezoelectric ceramic pickup strip, and is used to transmit the vibration of the strings to the piezoelectric ceramic pickup strip. Among them, the nut body needs to be set with a certain curvature according to the shape of the electronic guzheng, so that the nut body can fit on the electronic guzheng and can match the arrangement of the strings on the electronic guzheng.

[0007] In the utility model, when the nut body is installed on the electronic guzheng for use, it is necessary to make the front side end of the pressure strip face the side where the performer is located. At this time, the width of the lower surface of the pressure strip gradually decreases in the direction away from the performer. Correspondingly, the area of ​​the strings acting on the piezoelectric ceramic through the nut body is gradually reduced in the direction away from the performer, and the strings of the electronic guzheng are getting thicker and thicker in the direction away from the performer. Therefore, when the electronic guzheng is played, the nut body of the utility model can make the thicker the strings on the electronic guzheng, the smaller the area acting on the piezoelectric ceramic pickup strip through the nut body. Therefore, under the premise that the pressure generated by the thick strings is greater than that of the thin strings, according to the piezoelectric effect of the piezoelectric ceramics, the utility model can reduce the difference in the size of the voltage generated by the strings of different thicknesses on the piezoelectric ceramic pickup, thereby achieving the purpose of reducing the difference in the size of the sound generated by the strings of different thicknesses.

[0008] Furthermore, a plurality of notches are provided on the lower surface of the pressure strip at intervals along the length direction of the pressure strip, and the notches divide the pressure strip into a plurality of pressure blocks, and the lengths of the pressure blocks are the same; the pressure blocks are arranged one by one in correspondence with the accommodating grooves, and the pressure blocks are located below the corresponding accommodating grooves.

[0009] In the utility model, the pressing block is located below the corresponding receiving groove, and the vibration of the string received by the receiving groove is transmitted to the pickup bar through the pressing block below the receiving groove; wherein, since the pressing blocks are arranged at intervals from each other, when the string is plucked, when the vibration of the string is transmitted to the piezoelectric ceramic pickup through the pressing block below it, the pressing block will not cause compression of the piezoelectric ceramic pickup with the pressing blocks nearby, thereby preventing the pressing blocks nearby from generating voltage on the piezoelectric ceramic pickup, that is, it will not affect the voltage generated by the pressing block, and the sound pickup accuracy of the piezoelectric ceramic pickup can be effectively ensured.

[0010] Furthermore, the abutment strip and the pressure strip are integrally formed.

[0011] In the utility model, the abutment strip and the pressure strip are integrally formed. Compared with a separate arrangement, the vibration generated by the strings can be better transmitted to the pressure strip through the abutment strip, thereby enabling the vibration of the strings to be better transmitted to the piezoelectric ceramic pickup strip.

[0012] Furthermore, the pressure strip is obtained by inwardly tilting the lower part of the side wall of the abutment strip.

[0013] In the utility model, the side wall of the lower part of the abutment strip is inclined inwardly, and the structure formed that is wide at the top and narrow at the bottom is the pressure strip. Therefore, there is a smooth transition between the abutment strip and the pressure strip. After the nut body is installed in the groove-shaped installation structure on the electronic guzheng, during the playing process, the junction between the abutment strip and the pressure strip will not be stuck on the side wall of the groove-shaped installation structure due to the position offset of the nut body, which can ensure that the vibration of the strings can be smoothly transmitted to the piezoelectric ceramic pickup strip.

[0014] Furthermore, the accommodating groove is arranged in an expansion shape at both ends in the width direction of the abutting strip to form an expansion cavity.

[0015] In the utility model, both ends of the accommodating groove are arranged in an expansion shape, and the width is wider. Compared with not doing the widening treatment, the existence of the expansion cavity can make it easier for the strings to be embedded in the accommodating groove through it, so as to achieve the effect of facilitating the installation of the strings on the nut body.

[0016] The principle and effect of the present invention are further described below in combination with the above technical solutions and the accompanying drawings:

[0017] In the utility model, the width of the lower surface of the pressure strip gradually decreases in the direction away from the performer. Accordingly, the area of ​​the strings acting on the piezoelectric ceramic through the nut body gradually decreases in the direction away from the performer. The strings of the electronic guzheng become thicker and thicker in the direction away from the performer. Therefore, when the electronic guzheng is played, the nut body of the utility model can make the thicker strings on the electronic guzheng have a smaller area acting on the piezoelectric ceramic pickup strip through the nut body. Therefore, under the premise that the pressure generated by the thick strings is greater than that of the thin strings, according to the piezoelectric effect of the piezoelectric ceramic, the utility model can reduce the difference in the size of the voltage generated by the strings of different thicknesses on the piezoelectric ceramic pickup, thereby achieving the purpose of reducing the difference in the size of the sound generated by the strings of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The structure of the nut for the electronic guzheng according to the embodiment of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 2 The structure of the nut for the electronic guzheng according to the embodiment of the utility model is shown in FIG. Figure 2 .

[0020] Reference numerals

[0021] 11-abutting strip, 111-accommodating groove, 1111-expansion cavity, 12-pressing strip, 121-front side end, 122-rear side end, 123-notch, 124-pressing block. DETAILED DESCRIPTION

[0022] In order to facilitate understanding by those skilled in the art, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0023] like Figure 1-2 A nut for an electronic guzheng comprises a nut body, the nut body comprising an abutment strip 11, a plurality of accommodating grooves 111 are provided on the upper surface of the abutment strip 11 at intervals along the length direction of the abutment strip 11, a layering strip 12 is provided at the lower end of the abutment strip 11, two ends of the layering strip 12 are respectively flush with the two ends of the abutment strip 11 to form a front side end 121 and a rear side end 122, and the width of the lower surface of the layering strip 12 gradually decreases along the direction from the front side end 121 to the rear side end 122.

[0024] The nut body of the utility model is installed on the electronic guzheng for use, and the accommodating groove 111 provided on the upper surface of the abutting strip 11 penetrates the abutting strip 11 along the width direction of the abutting strip 11, and is used to accommodate and fix the strings of the electronic guzheng, and the pressing strip 12 located at the lower end of the abutting strip 11 is used to attach and press on the piezoelectric ceramic pickup strip, so as to transmit the vibration of the strings to the piezoelectric ceramic pickup strip. Among them, the nut body needs to be set with a certain curvature according to the shape of the electronic guzheng, so that the nut body can fit on the electronic guzheng and can match the arrangement of the strings on the electronic guzheng.

[0025] In the utility model, when the nut body is installed on the electronic guzheng for use, it is necessary to make the front side end 121 of the pressure strip 12 face the side where the performer is located. At this time, the width of the lower surface of the pressure strip 12 gradually decreases in the direction away from the performer. Correspondingly, the area of ​​the strings acting on the piezoelectric ceramic through the nut body is gradually reduced in the direction away from the performer, and the strings of the electronic guzheng are getting thicker and thicker in the direction away from the performer. Therefore, when the electronic guzheng is played, the nut body of the utility model can make the thicker the strings on the electronic guzheng, the smaller the area acting on the piezoelectric ceramic pickup strip through the nut body. Therefore, under the premise that the pressure generated by the thick strings is greater than that of the thin strings, according to the piezoelectric effect of the piezoelectric ceramics, the utility model can reduce the difference in the size of the voltage generated by the strings of different thicknesses on the piezoelectric ceramic pickup, thereby achieving the purpose of reducing the difference in the size of the sound generated by the strings of different thicknesses.

[0026] In one embodiment, a plurality of notches 123 are provided on the lower surface of the pressure strip 12 at intervals along the length direction of the pressure strip 12, and the notches 123 separate the pressure strip 12 into a plurality of pressure blocks 124, and the lengths of the pressure blocks 124 are the same; the pressure blocks 124 are arranged in a one-to-one correspondence with the accommodating grooves 111, and the pressure blocks 124 are located below the corresponding accommodating grooves 111.

[0027] In this embodiment, the pressing block 124 is located below the corresponding receiving groove 111, and the vibration of the string received by the receiving groove 111 is transmitted to the pickup bar through the pressing block 124 below the receiving groove 111; wherein, since the pressing blocks 124 are arranged at intervals from each other, when the string is plucked, when the vibration of the string is transmitted to the piezoelectric ceramic pickup through the pressing block 124 below it, the pressing block 124 will not cause the pressing blocks 124 near it to squeeze the piezoelectric ceramic pickup, thereby preventing the pressing blocks 124 near the pressing block 124 from generating a voltage on the piezoelectric ceramic pickup, that is, it will not affect the voltage generated by the pressing block 124, and the pickup accuracy of the piezoelectric ceramic pickup can be effectively ensured.

[0028] In one embodiment, the abutting strip 11 and the pressure strip 12 are integrally formed.

[0029] In this embodiment, the abutment strip 11 and the pressure strip 12 are integrally formed. Compared with a separate arrangement, the vibration generated by the strings can be better transmitted to the pressure strip 12 through the abutment strip 11, and the vibration of the strings can be better transmitted to the piezoelectric ceramic pickup strip.

[0030] In one embodiment, the pressure strip 12 is obtained by inclining the lower side portion of the side wall of the abutment strip 11 inwardly.

[0031] In the present embodiment, the side wall of the lower part of the abutment strip 11 is inclined inward, and the structure formed which is wide at the top and narrow at the bottom is the pressure strip 12. Therefore, there is a smooth transition between the abutment strip 11 and the pressure strip 12. After the nut body is installed in the groove-shaped mounting structure on the electronic guzheng, during the playing process, the junction between the abutment strip 11 and the pressure strip 12 will not be stuck on the side wall of the groove-shaped mounting structure due to the position offset of the nut body, thereby ensuring that the vibration of the strings can be smoothly transmitted to the piezoelectric ceramic pickup bar.

[0032] In one embodiment, the accommodating groove 111 is arranged in an expansion shape toward both ends of the abutting strip 11 in the width direction to form an expansion cavity 1111 .

[0033] In this embodiment, both ends of the accommodating groove 111 are expanded and wider. Compared with not widening the cavity 1111, the existence of the expanded cavity 1111 enables the strings to be more easily embedded in the accommodating groove 111, thereby facilitating the installation of the strings on the nut body.

[0034] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A nut for an electronic guzheng, comprising a nut body, wherein the nut body comprises an abutment strip, wherein a plurality of accommodating grooves are provided on the upper surface of the abutment strip at intervals along the length direction of the abutment strip, wherein: A pressure strip is arranged at the lower end of the abutment strip, and the two ends of the pressure strip are arranged flush with the two ends of the abutment strip to form a front side end and a rear side end, and the width of the lower surface of the pressure strip gradually decreases along the direction from the front side end to the rear side end.

2. A nut for an electronic guzheng according to claim 1, characterized in that: The lower surface of the pressure strip is provided with a plurality of notches at intervals along the length direction of the pressure strip, and the notches divide the pressure strip into a plurality of pressure blocks, and the lengths of the pressure blocks are the same; the pressure blocks are arranged in a one-to-one correspondence with the accommodating grooves, and the pressure blocks are located below the corresponding accommodating grooves.

3. A nut for an electronic guzheng according to claim 1 or 2, characterized in that: The abutting strip and the pressing strip are integrally formed.

4. The nut for an electronic guzheng according to claim 3, characterized in that: The pressure strip is obtained by inwardly tilting the lower side portion of the side wall of the abutment strip.

5. The nut for an electronic guzheng according to claim 1, characterized in that: The accommodating groove is arranged in an expansion shape at both ends in the width direction of the abutting strip to form an expansion cavity.

Images