CN112885314A - Zither rack with tuning function - Google Patents

Abstract

The invention discloses a Chinese zither placing frame with a tuning function, and belongs to the technical field of Chinese zither auxiliary accessories, wherein two ends of a positioning plate guide column are respectively fixedly connected with a height connecting sliding plate and a placing plate, the height connecting sliding plate is slidably mounted on a first support and a second support, a sound pickup is arranged on the placing plate, when tuning is performed, the sound pickup picks up sound and analyzes sound accuracy, the height of the placing plate can be adjusted, a positioning component can position the Chinese zither, the Chinese zither is ensured to be placed stably, the Chinese zither can be tuned through the tuning component, a tuning rod is matched with a tuning button on the Chinese zither, and micro-adjustment of a knob of the Chinese zither is realized through gear meshing. The invention has novel structure, is a Chinese zither placing frame with a tuning function, can be competent for tuning the Chinese zither, and reduces the troublesome operation of a Chinese zither owner in tuning.

Description

Zither rack with tuning function

Technical Field

The invention relates to the technical field of koto auxiliary accessories, in particular to a koto placing frame with a tuning function.

Background

The koto is also named as Hanzheng, Qin zither, Yao zither and luan zither, is a zither musical instrument in the traditional musical instruments of Chinese Han nationality, and belongs to plucked musical instruments. It is one of the unique and important national musical instruments in China. Its timbre is graceful, the range of sound is wide, the playing skill is abundant, has fairly strong expressive force, therefore it is deeply loved by the masses. Small koto, portable koto, mini koto, half koto, new koto, and twelve-tone equal temperament modulation koto have also appeared now. Koto is an ancient national musical instrument accompanying the long culture of China and the overgrowth of earth on the fertile loess land. The plucked musical instrument is composed of a panel, wild goose posts (also called as zither codes in some fields), strings, a front mountain, string nails, a tuning box, a piano foot, a rear mountain, side plates, a sound outlet, a bottom plate and string through holes. The zither is shaped as a rectangular wooden sound box, the string frame 'zither column' (namely the wild goose post) can move freely, one string and one tone are arranged according to five-tone scale, 25 strings are the most (the divine is the zither) at the earliest, thirteen strings are available in Tang and Song, and then sixteen, eighteen, twenty-one and the like are added, and the most common specification is twenty-one; generally, the model of the koto is previously invented by S163-21, wherein S stands for the S-shaped mountain, is invented by the Wangzhen son and the Mijin forest together, 163 stands for the length of the koto to is about 163 cm, and 21 stands for the number of strings of the koto to is 21. Present zither rack generally does not have the tuning function, because the zither string is more, brings very big inconvenience during the tuning, consequently provides a zither rack with tuning function.

Disclosure of Invention

Aiming at the technical problems, the invention provides the koto placing rack with the tuning function, which can tune a koto, has high automation degree and accurate position adjustment and brings great convenience to a user using the koto.

The technical scheme adopted by the invention is as follows: a Chinese zither placing frame with a tuning function comprises a support body, a supporting and placing part, a positioning part and a tuning part; the bracket body comprises a bracket connecting column; the supporting and placing component comprises a first height control sliding block and a second height control sliding block; the positioning component comprises a first positioning plate and a second positioning plate; the tuning part comprises an arc-shaped support frame.

The one end and the first support fixed connection of leg joint post, the other end and the second support fixed connection of leg joint post, two slidable mounting respectively on the leg joint post of height control slider one and height control slider, locating plate one and locating plate two slidable mounting respectively on the locating plate guide pillar, the both ends of locating plate guide pillar respectively with highly connect the slide, place board fixed connection, arc-shaped support frame slidable mounting is on second support, arc-shaped support frame and tuning height cylinder's push rod fixed connection.

Furthermore, the bracket body also comprises a bracket body roller, a stabilizing cylinder, a bracket I, a bracket II, a bracket column and a bracket column connecting block; the support comprises a support body and is characterized in that a support body roller is arranged at the bottom of the support body, a stabilizing cylinder is fixedly mounted on the support body, a support column is fixedly connected to the bottom of the support body, and a support column connecting block is fixedly connected to the support column.

Furthermore, the support placing part also comprises a first slide block connecting rod, a rotating frame motor, a second slide block connecting rod, a rotating frame roller, a rotating frame, a first support slide block, a first slide block pressure spring, a third slide block connecting rod, a fourth slide block connecting rod, a second support slide block, a second slide block pressure spring, a first height connecting rod, a second height connecting rod, a placing plate, a positioning plate guide pillar and a height connecting sliding plate; the rotary frame motor is fixedly installed on the support column connecting block, a rotary frame is fixedly connected to a motor shaft of the rotary frame motor, rotary frame rollers are arranged at two ends of the rotary frame respectively and are in contact with the first support sliding block and the second support sliding block respectively, the first support sliding block and the second support sliding block are slidably installed on the support column respectively, a first sliding block pressure spring and a second sliding block pressure spring are sleeved on the support column respectively, two ends of the first sliding block connecting rod are rotatably connected with the first height control sliding block and the second support sliding block respectively, two ends of the fourth sliding block connecting rod are rotatably connected with the second support sliding block and the second height control sliding block respectively, two ends of the second sliding block connecting rod are rotatably connected with the first height control sliding block and the first support sliding block respectively, and two ends of the third sliding block connecting rod are rotatably connected with the first.

Furthermore, the two ends of the first height connecting rod are respectively connected with the first height control slider and the placing plate in a rotating mode, the two ends of the second height connecting rod are respectively connected with the second height control slider and the placing plate in a rotating mode, the placing plate is provided with a pickup, and the height connecting sliding plate is slidably mounted on the first support and the second support.

Furthermore, the positioning component also comprises a first positioning plate connecting rod, a connecting gear ring, a first position frame, a position frame limiting rod, a first position motor gear, a second positioning plate connecting rod, a second position frame and a second position motor; the two ends of the first positioning plate connecting rod are respectively connected with the first positioning plate and the first position frame in a rotating mode, the position frame is sleeved on the limiting rod of the position frame, the limiting rod of the position frame is fixedly connected with a connecting gear ring, the connecting gear ring is fixedly installed at the bottom of the placing plate, the first position motor is fixedly installed on the first position frame, the first position motor gear is fixedly connected onto a motor shaft of the first position motor and is meshed with the connecting gear ring, the two ends of the second positioning plate connecting rod are respectively connected with the second position frame and the second positioning plate in a rotating mode, the second position motor is fixedly installed on the second position frame, the second position motor gear is fixedly connected onto a motor shaft of the second position motor and is meshed with the connecting gear ring.

Furthermore, the tuning component also comprises a tuning height cylinder, a direction motor, a direction mounting plate, a direction swing rod, a distance control cylinder, a tuning surrounding ring, a surrounding motor gear, a surrounding frame, a tuning rod and a surrounding frame roller; tuning height cylinder fixed mounting on support two, position mounting panel and arc support frame fixed connection are provided with the race on the arc support frame, fixed mounting has the position motor on the position mounting panel, the motor shaft and the position pendulum rod one end fixed connection of position motor, be provided with the roller on the other end of position pendulum rod, roller and the arc support frame on the position pendulum rod wheel groove contact, it has the distance control cylinder still to fixed mounting on the position pendulum rod other end.

Further, the push rod of the distance control cylinder is fixedly connected with the tuning surrounding ring, the tuning surrounding ring is slidably mounted on the azimuth swing rod, gear teeth and wheel grooves are further formed in the tuning surrounding ring, one end of the surrounding frame is provided with a surrounding frame roller, the surrounding frame roller is in contact with the wheel grooves in the tuning surrounding ring, a surrounding motor is fixedly mounted at the other end of the surrounding frame, a motor shaft of the surrounding motor is fixedly connected with a surrounding motor gear, the motor gear and the tuning surrounding ring are meshed with the gear teeth, and a tuning rod is further arranged on the surrounding frame.

Compared with the prior art, the invention has the beneficial effects that: under the meshing of the gear teeth, the tuning rod carries out micro-adjustment on the knob. The tuning height cylinder controls the height of the arc-shaped support frame, and the position motor drives the position swing rod to move, so that the tuning rod is located at the position of a zither knob needing tuning. The locating plate can fix a position the zither, guarantees that the zither places stably.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of the structure of the stent body according to the present invention.

Fig. 3 and 4 are schematic structural views of the support placing component of the invention.

FIG. 5 is a partially enlarged view of the positioning member of the present invention.

Fig. 6 and 7 are schematic partial enlarged structural views of a tuning part of the invention.

Reference numerals: 1-a stent body; 2-a support placement member; 3-a positioning member; 4-a tuning component; 101-a stent body roller; 102-a stabilizing cylinder; 103-bracket one; 104-a stent connection post; 105-scaffold two; 106-a support post; 107-bracket column connecting block; 201-a first height control slide block; 202-a first slider link; 203-a turret motor; 204-a second slider connecting rod; 205-turret rollers; 206-rotating frame; 207-bracket slide block one; 208-a slide block and a pressure spring; 209-third slide block link; 210-a second height control slide block; 211-slider link four; 212-bracket slide block two; 213-a second sliding block pressure spring; 214-height link one; 215-height link two; 216-placing the board; 217-positioning plate guide post; 218-height attachment slide; 301-positioning plate one; 302-positioning plate connecting rod I; 303-connecting a gear ring; 304-position frame one; 305-position frame limit bar; 306-position motor one; 307-position motor gear one; 308-position motor gear two; 309-positioning plate connecting rod II; 310-a second positioning plate; 311-position frame two; 312-position Motor two; 401-tuning height cylinder; 402-azimuth motor; 403-azimuth mounting plate; 404-azimuth swing link; 405-an arc support frame; 406-distance control cylinder; 407-tuning ring; 408-a wrap-around motor; 409-ring motor gear; 410-surrounding frame; 411-tuning rod; 412-around the cage rollers.

Detailed Description

The present invention will be further described with reference to specific examples, which are illustrative of the invention and are not to be construed as limiting the invention.

The embodiments are shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7: a Chinese zither placing frame with a tuning function comprises a support body 1, a supporting and placing part 2, a positioning part 3 and a tuning part 4; the bracket body 1 comprises a bracket connecting column 104; the supporting and placing part 2 comprises a first height control slide block 201 and a second height control slide block 210; the positioning component 3 comprises a first positioning plate 301 and a second positioning plate 310; the tuning member 4 includes an arc-shaped support frame 405.

One end of the bracket connecting column 104 is fixedly connected with the first bracket 103, the other end of the bracket connecting column 104 is fixedly connected with the second bracket 105, the first height control slider 201 and the second height control slider 210 are respectively slidably mounted on the bracket connecting column 104, the first positioning plate 301 and the second positioning plate 310 are respectively slidably mounted on the positioning plate guide column 217, two ends of the positioning plate guide column 217 are respectively fixedly connected with the height connecting sliding plate 218 and the placing plate 216, the arc-shaped support frame 405 is slidably mounted on the second bracket 105, and the arc-shaped support frame 405 is fixedly connected with the push rod of the tuning height cylinder 401.

The bracket body 1 further comprises a bracket body roller 101, a stabilizing cylinder 102, a first bracket 103, a second bracket 105, a bracket column 106 and a bracket column connecting block 107; the bottom of the first support 103 is provided with a support body roller 101, the first support 103 is further fixedly provided with a stabilizing cylinder 102, the bottom of the first support 1 is further fixedly connected with a support column 106, and the support column 106 is further fixedly connected with a support column connecting block 107.

The supporting and placing part 2 further comprises a first slide block connecting rod 202, a rotating frame motor 203, a second slide block connecting rod 204, a rotating frame roller 205, a rotating frame 206, a first bracket slide block 207, a first slide block pressure spring 208, a third slide block connecting rod 209, a fourth slide block connecting rod 211, a second bracket slide block 212, a second slide block pressure spring 213, a first height connecting rod 214, a second height connecting rod 215, a placing plate 216, a positioning plate guide post 217 and a height connecting sliding plate 218; the rotating frame motor 203 is fixedly arranged on the support column connecting block 107, a rotating frame 206 is fixedly connected to a motor shaft of the rotating frame motor 203, rotating frame rollers 205 are respectively arranged at two ends of the rotating frame 206, the rotating frame rollers 205 are respectively contacted with a support sliding block I207 and a support sliding block II 212, the support sliding block I207 and the support sliding block II 212 are respectively arranged on the support column 106 in a sliding manner, a sliding block I pressure spring 208 and a sliding block II pressure spring 213 are respectively sleeved on the support column 106, two ends of a sliding block connecting rod I202 are respectively connected with a height control sliding block I201 and a support sliding block II 212 in a rotating manner, two ends of a sliding block connecting rod IV 211 are respectively connected with the support, the second height control slider 210 is rotatably connected, two ends of the second slider connecting rod 204 are rotatably connected with the first height control slider 201 and the first bracket slider 207 respectively, and two ends of the third slider connecting rod 209 are rotatably connected with the first bracket slider 207 and the second height control slider 210 respectively. For the height of placing the zither, the rotating frame motor 203 drives the rotating frame 206, the rotating frame roller 205 acts on the first support sliding block 207 and the second support sliding block 212 to enable the first support sliding block 207 and the second support sliding block 212 to move, the first height control sliding block 201 and the second height control sliding block 210 are enabled to move under the action of the first sliding block connecting rod 202, and then the plate 216 is placed to move under the action of the first height connecting rod 214 and the second height connecting rod 215 to achieve height adjustment of the zither.

Two ends of a first height connecting rod 214 are respectively and rotatably connected with a first height control sliding block 201 and a placing plate 216, two ends of a second height connecting rod 215 are respectively and rotatably connected with a second height control sliding block 210 and the placing plate 216, a pickup is arranged on the placing plate 216, and a height connecting sliding plate 218 is slidably mounted on a first support 103 and a second support 105. The placing plate 216 is provided with a pickup, and when tuning, the pickup picks up the sound from the koto and judges the intonation for tuning.

The positioning component 3 further comprises a first positioning plate connecting rod 302, a connecting gear ring 303, a first positioning frame 304, a first positioning frame limiting rod 305, a first positioning motor 306, a first positioning motor gear 307, a second positioning motor gear 308, a second positioning plate connecting rod 309, a second positioning frame 311 and a second positioning motor 312; two ends of a first positioning plate connecting rod 302 are respectively and rotatably connected with a first positioning plate 301 and a first position frame 304, the first position frame 304 is sleeved on a first position frame limiting rod 305, the first position frame limiting rod 305 is fixedly connected with a connecting gear ring 303, the connecting gear ring 303 is fixedly arranged at the bottom of a placing plate 216, a first position motor 306 is further fixedly arranged on the first position frame 304, a first position motor gear 307 is fixedly connected to a motor shaft of the first position motor 306, the first position motor gear 307 is meshed with the connecting gear ring 303, two ends of a second positioning plate connecting rod 309 are respectively and rotatably connected with a second position frame 311 and a second positioning plate 310, a second position motor 312 is fixedly arranged on the second position frame 311, a second position motor gear 308 is fixedly connected to a motor shaft of the second position motor 312, and the second position motor gear 308 is meshed. The zither is placed on placing board 216, and position motor 306 drives position motor gear 307, and under the meshing of the teeth of a cogwheel, position frame 304 moves, and then makes locating plate 301 move under the effect of locating plate connecting rod 302, and similarly, two 310 movements of locating plate can fix a position the zither, guarantee that the zither is placed stably.

The tuning member 4 further comprises a tuning height cylinder 401, an azimuth motor 402, an azimuth mounting plate 403, an azimuth swing rod 404, a distance control cylinder 406, a tuning encircling ring 407, a encircling motor 408, an encircling motor gear 409, an encircling frame 410, a tuning rod 411 and an encircling frame roller 412; the tuning height cylinder 401 is fixedly mounted on the second support 105, the azimuth mounting plate 403 is fixedly connected with the arc-shaped support frame 405, a wheel groove is formed in the arc-shaped support frame 405, the azimuth motor 402 is fixedly mounted on the azimuth mounting plate 403, a motor shaft of the azimuth motor 402 is fixedly connected with one end of the azimuth swing rod 404, a roller is arranged at the other end of the azimuth swing rod 404, the roller on the azimuth swing rod 404 is in contact with the wheel groove in the arc-shaped support frame 405, and a distance control cylinder 406 is further fixedly mounted at the other end of the azimuth swing rod 404.

The push rod of the distance control cylinder 406 is fixedly connected with the tuning ring 407, the tuning ring 407 is slidably mounted on the azimuth swing rod 404, gear teeth and a wheel groove are further arranged on the tuning ring 407, one end of the surrounding frame 410 is provided with a surrounding frame roller 412, the surrounding frame roller 412 is in contact with the wheel groove on the tuning ring 407, the other end of the surrounding frame 410 is fixedly provided with a surrounding motor 408, a motor shaft of the surrounding motor 408 is fixedly connected with a surrounding motor gear 409, the surrounding motor gear 409 is meshed with the gear teeth on the tuning ring 407, and the surrounding frame 410 is further provided with a tuning rod 411. Tuning height cylinder 401 control arc support frame 405's height, position motor 402 drives position pendulum rod 404 motion, make tuning rod 411 be located the zither knob position that needs the tuning, it is close to the knob and makes tuning rod 411 and knob cooperation to control tuning ring 407 apart from control cylinder 406, surround motor 408 drive and encircle motor gear 409, under the meshing of the teeth of a cogwheel, tuning rod 411 carries out the micro-adjustment to the knob, and then makes the zither reach correct intonation.

The working principle of the invention is as follows: the Chinese zither is placed on the placing plate 216, the first position motor 306 drives the first position motor gear 307, under the meshing of gear teeth, the first position frame 304 moves, and then the first positioning plate 301 moves under the action of the first positioning plate connecting rod 302, and similarly, the second positioning plate 310 moves, so that the Chinese zither can be positioned, the placement stability of the Chinese zither is ensured, for the placement height of the Chinese zither, the first revolving frame motor 203 drives the revolving frame 206, the revolving frame roller 205 acts on the first bracket sliding block 207 and the second bracket sliding block 212 to enable the first bracket sliding block 207 and the second bracket sliding block 212 to move, the first height control sliding block 201 and the second height control sliding block 210 move under the action of the first sliding block connecting rod 202, the placing plate 216 moves under the action of the first height connecting rod 214 and the second height connecting rod 215 to realize the height adjustment of the Chinese zither, the placing plate 216 is provided with a sound pick-up device, when the Chinese zither picks up the sound generated by the sound pick-up device, the sound, position motor 402 drives position pendulum rod 404 motion, makes tuning rod 411 be located the zither knob position that needs the tuning, and apart from control cylinder 406 control tuning ring 407 and be close to the knob and make tuning rod 411 and knob cooperation, surround motor 408 and drive and encircle motor gear 409, under the tooth meshing, tuning rod 411 carries out the micro-adjustment to the knob, and then makes the zither reach correct intonation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a zither rack with tuning function, includes stake body (1), supports places part (2), locating part (3), tuning part (4), its characterized in that:

the bracket body (1) comprises a bracket connecting column (104);

the supporting and placing component (2) comprises a first height control sliding block (201) and a second height control sliding block (210);

the positioning component (3) comprises a first positioning plate (301) and a second positioning plate (310);

the tuning component (4) comprises an arc-shaped support frame (405);

one end of the bracket connecting post 104 is fixedly connected with the first bracket (103), the other end of the bracket connecting post (104) is fixedly connected with the second bracket (105), the first height control slider (201) and the second height control slider (210) are respectively slidably mounted on the bracket connecting post (104), the first positioning plate (301) and the second positioning plate (310) are respectively slidably mounted on the positioning plate guide post (217), two ends of the positioning plate guide post (217) are respectively in the height connecting sliding plate (218) and the placing plate (216) for fixed connection, the arc-shaped support frame (405) is slidably mounted on the second bracket (105), and the arc-shaped support frame (405) is fixedly connected with a push rod of the tuning height cylinder (401).

2. A koto rack with tuning function according to claim 1, characterized in that: the support body (1) further comprises a support body roller (101), a stabilizing cylinder (102), a support I (103), a support II (105), a support column (106) and a support column connecting block (107); the support is characterized in that a support body roller (101) is arranged at the bottom of the first support (103), a stabilizing cylinder (102) is fixedly mounted on the first support (103), a support column (106) is fixedly connected to the bottom of the support body (1), and a support column connecting block (107) is fixedly connected to the support column (106).

3. A koto rack with tuning function according to claim 1, characterized in that: the support placing component (2) further comprises a first sliding block connecting rod (202), a rotating frame motor (203), a second sliding block connecting rod (204), a rotating frame roller (205), a rotating frame (206), a first support sliding block (207), a first sliding block pressure spring (208), a third sliding block connecting rod (209), a fourth sliding block connecting rod (211), a second support sliding block (212), a second sliding block pressure spring (213), a first height connecting rod (214), a second height connecting rod (215), a placing plate (216), a positioning plate guide post (217) and a height connecting sliding plate (218); the rotary frame motor (203) is fixedly installed on the support column connecting block (107), a rotary frame (206) is fixedly connected to a motor shaft of the rotary frame motor (203), rotary frame rollers (205) are arranged at two ends of the rotary frame (206) respectively, the rotary frame rollers (205) are in contact with a first support sliding block (207) and a second support sliding block (212) respectively, the first support sliding block (207) and the second support sliding block (212) are installed on the support column (106) in a sliding mode respectively, a first sliding block pressure spring (208) and a second sliding block pressure spring (213) are sleeved on the support column (106) respectively, two ends of a first sliding block connecting rod (202) are in rotary connection with a first height control sliding block (201) and a second support sliding block (212) respectively, two ends of a fourth sliding block connecting rod (211) are in rotary connection with the second support sliding block (212) and the second height control sliding block (210) respectively, and two ends of the second sliding block connecting rod (204), The first bracket sliding block (207) is rotatably connected, and two ends of the third sliding block connecting rod (209) are respectively rotatably connected with the first bracket sliding block (207) and the second height control sliding block (210).

4. A koto rack with tuning function according to claim 3, characterized in that: two ends of the first height connecting rod (214) are respectively and rotatably connected with the first height control sliding block (201) and the placing plate (216), two ends of the second height connecting rod (215) are respectively and rotatably connected with the second height control sliding block (210) and the placing plate (216), a sound pickup is arranged on the placing plate (216), and the height connecting sliding plate (218) is slidably mounted on the first support (103) and the second support (105).

5. A koto rack with tuning function according to claim 1, characterized in that: the positioning component (3) further comprises a first positioning plate connecting rod (302), a connecting gear ring (303), a first position frame (304), a position frame limiting rod (305), a first position motor (306), a first position motor gear (307), a second position motor gear (308), a second positioning plate connecting rod (309), a second position frame (311) and a second position motor (312); the two ends of the first positioning plate connecting rod (302) are respectively and rotatably connected with the first positioning plate (301) and the first position frame (304), the first position frame (304) is sleeved on the first position frame limiting rod (305), the first position frame limiting rod (305) is fixedly connected with the connecting gear ring (303), the connecting gear ring (303) is fixedly installed at the bottom of the placing plate (216), the first position frame (304) is also fixedly provided with the first position motor (306), a first position motor gear (307) is fixedly connected to a motor shaft of the first position motor (306), the first position motor gear (307) is meshed with the connecting gear ring (303), the two ends of the second positioning plate connecting rod (309) are respectively and rotatably connected with the second position frame (311) and the second positioning plate (310), the second position motor (312) is fixedly installed on the second position frame (311), and a second position motor gear (308) is fixedly connected to a motor shaft of the second position motor (312), and a second position motor gear (308) is meshed with the connecting gear ring (303).

6. The zither rack with the tuning function according to claim 5, wherein: the tuning component (4) further comprises a tuning height cylinder (401), an azimuth motor (402), an azimuth mounting plate (403), an azimuth swing rod (404), a distance control cylinder (406), a tuning surrounding ring (407), a surrounding motor (408), a surrounding motor gear (409), a surrounding frame (410), a tuning rod (411) and a surrounding frame roller (412); tuning height cylinder (401) fixed mounting on support two (105), position mounting panel (403) and arc support frame (405) fixed connection, be provided with the race on arc support frame (405), fixed mounting has position motor (402) on position mounting panel (403), the motor shaft and the position pendulum rod (404) one end fixed connection of position motor (402), be provided with the roller on the other end of position pendulum rod (404), the contact of race on roller on position pendulum rod (404) and arc support frame (405), still fixed mounting has distance control cylinder (406) on position pendulum rod (404) the other end.

7. The zither rack with the tuning function according to claim 6, wherein: the distance control cylinder (406) push rod and tuning ring (407) fixed connection, tuning ring (407) slidable mounting is on position pendulum rod (404), still is provided with teeth of a cogwheel and race on tuning ring (407), one of surrounding frame (410) is served and is provided with surrounding frame roller (412), surrounds frame roller (412) and tuning ring (407) and goes up the race contact, and fixed mounting has surrounding motor (408) on the other end of surrounding frame (410), and the motor shaft and surrounding motor gear (409) fixed connection of surrounding motor (408), surrounds motor gear (409) and the meshing of the teeth of tuning ring (407) on, still be provided with tuning rod 411 on surrounding frame (410).

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