Konghou pull rod anti-deformation guide structure

Abstract

The utility model discloses a Konghou pull rod anti-deformation guide structure, which is arranged in a Konghou body and corresponds to a bent part of a pull rod, and comprises a plurality of guide seats, the plurality of guide seats are arranged along the longitudinal direction and are detachably connected with the Konghou body, the plurality of guide seats are provided with limiting holes penetrating along the longitudinal direction, and the limiting holes are communicated with the Konghou pull rod. The pull rod is located in the limiting holes corresponding to the multiple guide bases, and the multiple limiting holes are matched with the bending radian of the pull rod. According to the utility model, the plurality of longitudinally arranged guide seats are arranged, and the guide seats are provided with the limiting holes matched with the bending radian of the pull rod, so that the pull rod has a fixed guide path at the bending part, and when the pull rod is stressed, the pull rod is ensured to move according to an expected track, and is prevented from being excessively deformed or subjected to unnecessary stress.

Description

Technical Field

[0001] The utility model relates to the field of konghou pull rod guides, in particular to a konghou pull rod anti-deformation guide structure. Background Art

[0002] The konghou is a very ancient plucked string instrument of the Han Chinese ethnic group. In ancient times, it was not only used in imperial court music but also widely among the people. It is often used in solos, duets, and as accompaniment for songs and dances, and is even used in large-scale folk orchestras. Modern konghous are often equipped with a pitch-shifting mechanism that allows the instrument to raise or lower its pitch, allowing it to produce a variety of tones and enhancing its expressiveness.

[0003] The pitch-changing mechanism generally changes the length of the playable strings by rotating the string-cutting structure, causing the pitch to fall or rise. The string-cutting structure generally has two ends. When both ends are attached to the strings, the section of the string will be compressed and unable to vibrate and produce sound. This section of the string is said to be cut off. The string-cutting structure is rotatably installed on the body of the instrument. The shaft is also connected to the connecting rod through other structures, and the connecting rod is controlled by a pull rod. The pull rod extends to the user's side, such as under the feet (the konghou and harp control the tuning mechanism through a foot-operated mechanism under the feet). The user controls the pull rod through the foot-operated mechanism to rotate the shaft. Generally, multiple pull rods are used to control the pitch of multiple groups of strings separately.

[0004] The drawbar is typically curved into a conical radial shape, located inside the guitar body and connected to the foot pedal. When the drawbar is subjected to force, the force is directed at a certain angle to the drawbar. From a mechanical perspective, this force is decomposed into radial and axial forces. The axial force is transmitted along the drawbar to the tuning mechanism, while the radial force causes the drawbar to bend, resulting in poor tuning. Furthermore, due to the drawbar's lack of rigidity, it has no point of support when pushed upward, making it prone to bending. Utility Model Content

[0005] The purpose of the utility model is to provide a konghou pull rod anti-deformation guide structure to solve the problems mentioned in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides a konghou pull rod anti-deformation guide structure, which is arranged inside the piano body and corresponds to the bending part of the pull rod. It includes multiple guide seats, and the multiple guide seats are arranged longitudinally and are detachably connected to the piano body. The multiple guide seats are each provided with a limiting hole that passes through the longitudinal direction. The pull rod is located in the limiting holes corresponding to the multiple guide seats, and the multiple limiting holes are respectively adapted to the bending curvature of the pull rod.

[0007] Furthermore, the guide seat includes a transversely arranged vertical plate, the vertical plate is detachably connected to the piano body, and a plurality of limiting holes adapted to the plurality of pull rods are opened on the vertical plate.

[0008] Furthermore, the guide seat includes a bottom plate, which is arranged in the longitudinal direction and is detachably connected to the piano body, and the bottom plate is connected to the vertical plate.

[0009] Furthermore, the bottom plate and the vertical plate are connected by screws.

[0010] Furthermore, a mounting groove is provided on the bottom plate, and the mounting groove is adapted to one side of the vertical plate.

[0011] Furthermore, the nut end of the screw is cylindrical, and a receiving groove is formed on the bottom plate, and the receiving groove is adapted to the nut end of the screw.

[0012] Furthermore, the nut end of the screw is cylindrical, and a receiving groove is formed on the bottom plate, and the receiving groove is adapted to the nut end of the screw.

[0013] Furthermore, the accommodating groove corresponds to the mounting groove.

[0014] The beneficial effects of the present invention are as follows: the present invention sets a plurality of longitudinally arranged guide seats, and the guide seats are provided with limiting holes adapted to the bending curvature of the pull rod, so that the pull rod has a fixed guide path at the bending part. When the pull rod is subjected to force, it is ensured that it moves along the expected trajectory, preventing it from excessive deformation or unnecessary stress. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the embodiment of the present utility model when used.

[0016] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of part A in the middle.

[0017] Figure 3 Schematic diagram of the three-dimensional structure of the guide seat.

[0018] Figure 4 Schematic diagram of the explosion structure of the guide seat.

[0019] Among them: 1. Musical instrument body; 2. Guide seat; 3. Pull rod; 4. Screw.

[0020] 21. Vertical plate; 22. Bottom plate; 23. Mounting slot; 24. Accommodation slot. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiment described is only one embodiment of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In order to make the objectives, technical solutions and advantages of this application clearer, this application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] In the following description, references to "one embodiment," "an embodiment," "an example," "an example," etc. indicate that the embodiment or example described may include certain features, structures, characteristics, properties, elements, or limitations, but not every embodiment or example necessarily includes the certain features, structures, characteristics, properties, elements, or limitations. In addition, repeated use of the phrase "according to one embodiment of the present application" may refer to the same embodiment, but does not necessarily refer to the same embodiment.

[0024] like Figures 1-4 As shown, the utility model discloses an anti-deformation guide structure for a harp pull rod 3, which is arranged inside the instrument body 1 and corresponds to the bending part of the pull rod 3. It includes multiple guide seats 2, and the multiple guide seats 2 are arranged along the longitudinal direction and are all detachably connected to the instrument body 1. The multiple guide seats 2 are each provided with a limiting hole that passes through the longitudinal direction. The pull rod 3 is located in the limiting holes corresponding to the multiple guide seats 2, and the multiple limiting holes are respectively adapted to the bending curvature of the pull rod 3.

[0025] In this embodiment, three guide seats 2 are provided, and the three guide seats 2 are mounted end to end on the piano body 1, so that the guide seats 2 can provide support for the pull rod 3 along its length. Moreover, each limiting hole on the multiple guide seats 2 is customized according to the specific curved shape of the pull rod 3, thereby ensuring that the pull rod 3 can maintain its original shape and stability when passing through the guide seats 2.

[0026] When the pull rod 3 is bent by force, it will be located in the limiting hole corresponding to the guide seat 2. By adapting the position and shape of the limiting hole to the bending curvature of the pull rod 3, the radial force can be effectively offset, the deformation of the pull rod 3 can be prevented, and its correct bending can be ensured. That is, when the pull rod 3 is pulled down by the pedal, the pull rod 3 will move along the limiting hole on the guide seat 2. When the pull rod 3 is pushed upward, the pull rod 3 contacts the inner wall of the limiting hole. Since the design of the limiting hole takes into account the bending direction of the pull rod 3, this contact will be smoother and more uniform. While the inner wall of the limiting hole provides a fulcrum for the pull rod 3 to move upward to prevent the pull rod 3 from bending and deforming, it also reduces the wear caused by friction and improves the overall durability.

[0027] The utility model sets up a plurality of longitudinally arranged guide seats 2, and the guide seats 2 are provided with limiting holes adapted to the bending curvature of the pull rod 3, so that the pull rod 3 has a fixed guide path at the bending part. When the pull rod 3 is subjected to force, it is ensured that it moves along the expected trajectory, preventing it from excessive deformation or unnecessary stress.

[0028] In one embodiment, the guide base 2 includes a transversely disposed upright plate 21, which is detachably connected to the body 1 and has a plurality of retaining holes corresponding to the plurality of tie rods 3. This means that the guide base 2 can simultaneously support and guide the plurality of tie rods 3, improving the compactness and efficiency of the structure.

[0029] In one embodiment, the guide base 2 further includes a bottom plate 22, which is disposed longitudinally and detachably connected to the body 1. The bottom plate 22 is also detachably connected to the upright plate 21. Specifically, in this embodiment, a first side of the bottom plate 22 abuts against the body 1, while a second side of the bottom plate 22 abuts against the upright plate 21. The bottom plate 22 and upright plate 21 can be fixedly or detachably connected. In other words, the guide base 2 can be integral or split, forming a T-shape overall.

[0030] This allows the guide base 2 to be easily installed or removed when needed, making it easier to repair, replace, or adjust. At the same time, the bottom plate 22 provides stable support for the vertical plate 21. The bottom plate 22 and the vertical plate 21 together form a stable support structure, ensuring that the vertical plate 21 will not shake or shift when subjected to the force of the pull rod 3.

[0031] In one embodiment, the bottom plate 22 and the vertical plate 21 are connected by screws 4. The screw connection 4 provides a secure and adjustable connection method, which can ensure a tight connection between the bottom plate 22 and the vertical plate 21. At the same time, the screw connection 4 is easy to disassemble and install, which is convenient for maintenance, replacement or adjustment when needed.

[0032] In one embodiment, a mounting groove 23 is formed on the bottom plate 22, and the mounting groove 23 is adapted to one side of the vertical plate 21. In this embodiment, the mounting groove 23 is located on the second side surface of the bottom plate 22. The mounting groove 23 extends horizontally through the bottom plate 22 and opens toward the vertical plate 21, that is, the vertical plate 21 can be inserted into the mounting groove 23.

[0033] When upright plate 21 is inserted into mounting groove 23 and secured, its position and orientation are precisely defined, facilitating connection between upright plate 21 and base plate 22. This also enhances the stability of the connection between upright plate 21 and base plate 22. Because a portion of upright plate 21 is embedded in mounting groove 23, this design resists external vibrations and shocks, maintaining the stability of guide base 2.

[0034] In one embodiment, the nut end of screw 4 is cylindrical, and a receiving slot 24 is defined on base plate 22, adapted to accommodate the nut end of screw 4. In this embodiment, there are two screws 4 and receiving slots 24, specifically two hexagon socket head screws 4, each securing one end of vertical plate 21. Receiving slots 24 are defined on a first side surface of base plate 22.

[0035] When the screw 4 is tightened, the nut is completely embedded in the receiving groove 24, ensuring that the nut does not protrude from the surface of the bottom plate 22, so that the first side surface of the bottom plate 22 can be completely fitted with the piano body 1, increasing the contact area between the guide seat 2 and the piano body 1, thereby reducing the loosening of the guide seat 2 due to vibration or impact, and improving the stability of the guide seat 2.

[0036] In one embodiment, the receiving slot 24 corresponds to the mounting slot 23, that is, the receiving slot 24 and the mounting slot 23 are connected by a circular hole. When the vertical plate 21 is placed in the mounting slot 23, the threaded end of the screw 4 passes through the circular hole and screws into the vertical plate 21 in the mounting slot 23 until the nut end of the screw 4 can be smoothly inserted into the receiving slot 24. This corresponding relationship makes the entire installation process smoother and more precise.

[0037] The installation process of this utility model is as follows:

[0038] Install the multiple guide seats 2 onto the piano body 1. Specifically, install the guide seats 2 as follows: insert the vertical plate 21 into the mounting slot 23, secure the vertical plate 21 to the bottom plate 22 with the screws 4, ensuring that the nut ends of the screws 4 are completely seated in the receiving slots 24, and then secure the bottom plate 22 to the piano body 1. Finally, pass the multiple pull rods 3 through the multiple guide seats 2 in sequence, ensuring that the bends of the pull rods 3 are located in the corresponding stop holes on the multiple guide seats 2.

[0039] The utility model sets up a plurality of longitudinally arranged guide seats 2, and the guide seats 2 are provided with limiting holes adapted to the bending curvature of the pull rod 3, so that the pull rod 3 has a fixed guide path at the bending part. When the pull rod 3 is subjected to force, it is ensured that it moves along the expected trajectory, preventing it from excessive deformation or unnecessary stress.

[0040] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The anti-deformation guide structure of the konghou pull rod is arranged inside the instrument body and corresponds to the bend of the pull rod. It is characterized by: It includes multiple guide seats, which are arranged longitudinally and are detachably connected to the piano body. Multiple guide seats are provided with limiting holes that pass through the longitudinal direction. The pull rod is located in the limiting holes corresponding to the multiple guide seats, and the multiple limiting holes are respectively adapted to the bending curvature of the pull rod.

2. The konghou pull rod anti-deformation guide structure according to claim 1, characterized in that: The guide seat includes a transversely arranged vertical plate, the vertical plate is detachably connected to the piano body, and a plurality of limiting holes adapted to the plurality of pull rods are opened on the vertical plate.

3. The konghou pull rod anti-deformation guide structure according to claim 2, characterized in that: The guide seat comprises a bottom plate, which is arranged in the longitudinal direction and is detachably connected to the piano body, and the bottom plate is connected to the vertical plate.

4. The konghou pull rod anti-deformation guide structure according to claim 3, characterized in that: The bottom plate is connected to the vertical plate by screws.

5. The konghou pull rod anti-deformation guide structure according to claim 4, characterized in that: The bottom plate is provided with a mounting groove, and the mounting groove is adapted to one side of the vertical plate.

6. The konghou pull rod anti-deformation guide structure according to claim 5, characterized in that: The nut end of the screw is cylindrical, and a receiving groove is provided on the bottom plate, and the receiving groove is adapted to the nut end of the screw.

7. The konghou pull rod anti-deformation guide structure according to claim 6, characterized in that: The receiving groove corresponds to the installation groove.

Images