Tail column supporting leg of cello

Abstract

The utility model discloses a violoncello tail column supporting leg which comprises a supporting rod and an inserting block, the inserting block is arranged on the upper side of the outer wall of the supporting rod and used for being inserted into a hole in the tail of a violoncello body to fix the supporting rod, an anti-skid cap is arranged on the lower side of the supporting rod, a connecting rod is arranged at the lower end of the supporting rod, and a rotating rod is arranged at the lower end of the connecting rod. Mounting grooves are formed in the upper end of the rotating rod and the lower end of the connecting rod, bearings are arranged in the two mounting grooves, the two bearing assemblies are connected and fixed through a fixing rod, and the connecting rod can rotate at the upper end of the rotating rod through rotation of the two bearings; when the guitar body rotates, the supporting rod can rotate at the upper end of the rotating rod through the connecting rod to drive the guitar body on the supporting rod to rotate, so that the anti-skid cap does not rotate while the guitar body and the supporting rod rotate, and the anti-skid cap is always attached to the ground to prevent the supporting rod from sliding; therefore, the sliding deviation of the supporting rod caused by the reduction of the contact surface with the ground due to the rotation of the anti-slip cap is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field related to musical instrument accessories, and particularly relates to a cello tail column support foot. Background Art

[0002] The cello tail column, also known as the tail rest or tail spike, is an important part of the cello, mainly playing the role of supporting the strings and adjusting the position of the bridge. The tail column is usually made of wood or metal and is installed at the central position at the lower end of the cello body, tightly connected to the cello body and the neck. There is a piece of wood or metal plate at the lower end of the tail column, called the support foot, which is used to support the stability of the cello when standing. However, during the performance of the cello, the musician will rotate and swing the cello body along with the melody of the music. Due to the anti-slip sleeve at the bottom end of the tail column, it is impossible to swing the cello body more smoothly when rotating the cello body, and it may also cause the anti-slip effect to decrease due to the movement of the anti-slip pad during the swinging process, resulting in the sliding of the support foot. Content of the Utility Model

[0003] The purpose of the utility model is to provide a cello tail column support foot to solve the problem proposed in the above background art that during the performance of the cello, the musician will rotate and swing the cello body along with the melody of the music. Due to the anti-slip sleeve at the bottom end of the tail column, it is impossible to swing the cello body more smoothly when rotating the cello body, and it may also cause the anti-slip effect to decrease due to the movement of the anti-slip pad during the swinging process, resulting in the sliding of the support foot.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A cello tail column support foot, including a support rod and an insertion block;

[0005] An insertion block is arranged on the upper side of the outer wall of the support rod, and the insertion block is used to be inserted into the hole at the tail of the cello body to fix the support rod. An anti-slip cap is arranged on the lower side of the support rod, and a connecting rod is arranged at the lower end of the support rod;

[0006] A rotating rod is arranged at the lower end of the connecting rod. Installation grooves are respectively arranged at the upper end and the lower end of the rotating rod. Bearings are arranged in both installation grooves, and the two bearing assemblies are connected and fixed by a fixing rod. The connecting rod can rotate on the upper end of the rotating rod through the rotation of the two bearings.

[0007] Preferably, a threaded rod is arranged at the upper end of the connecting rod, and a threaded groove is arranged at the lower end of the support rod. The connecting rod is connected and fixed to the support rod by screwing the threaded rod into the threaded groove.

[0008] Preferably, the two bearings are fixedly bonded in the installation grooves at the upper and lower ends of the rotating rod and the connecting rod, and both the rotating rod and the connecting rod are made of titanium alloy.

[0009] Preferably, a fixing groove is arranged on the lower side of the outer wall of the insertion block, and the fixing groove is used to fix the string support. The insertion block is made of wood material.

[0010] Preferably, a limiting ring is provided at the lower end of the insertion block, and a knob is provided at the left end of the limiting ring. The knob is used to squeeze the outer wall of the support rod to fix it.

[0011] Preferably, the anti-slip cap is sleeved on the outer wall of the lower end of the rotating rod. The upper end of the support rod is designed with a rounded corner and its surface is polished.

[0012] Compared with the prior art, the present utility model provides a cello tail column support foot, which has the following beneficial effects:

[0013] During a performance, the length of the support rod extended can be adjusted according to the height of the cello used by the musician. Loosen the knob to release the squeezed and fixed support rod to adjust its length, and then tighten the knob to squeeze the support rod for fixation. The cello body is supported by the support rod. When the musician twists along with the melody during playing, the rotating rod and the connecting rod will rotate. The rotating rod and the connecting rod rotate through the bearings at the upper and lower ends of the internal fixed rod. The rotating block contacts the ground through the anti-slip cap to prevent the support rod from sliding. When the cello body rotates, the support rod can drive the cello body on the support rod to rotate by rotating at the upper end of the rotating rod through the connecting rod, so as to realize that the anti-slip cap does not rotate while the cello body and the support rod rotate, and the anti-slip cap always fits with the ground to prevent the support rod from sliding, thereby avoiding the support rod from sliding and shifting due to the rotation of the anti-slip cap reducing the contact surface with the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of a cello tail column support foot of the present utility model.

[0015] Figure 2 It is a disassembled structural diagram of the rotating rod and the connecting rod of the present utility model.

[0016] Figure 3 It is a schematic front connection sectional structure diagram of the rotating rod and the connecting rod of the present utility model.

[0017] Figure 4 It is a schematic front sectional structure diagram of the limiting ring of the present utility model.

[0018] In the figure: 1, rotating rod; 2, connecting rod; 3, knob; 4, support rod; 5, insertion block; 6, fixing groove; 7, limiting ring; 8, anti-slip cap; 9, fixed rod; 10, threaded rod; 11, bearing; 12, installation groove; 13, threaded groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0020] The present utility model provides a cello tail column support as Figures 1-4 shown, including a support rod 4 and an insertion block 5;

[0021] An insertion block 5 is arranged on the upper side of the outer wall of the support rod 4. The insertion block 5 is used to be inserted into the hole at the tail of the instrument body to fix the support rod 4. An anti-slip cap 8 is arranged on the lower side of the support rod 4, and a connecting rod 2 is arranged at the lower end of the support rod 4;

[0022] A rotating rod 1 is arranged at the lower end of the connecting rod 2. Installation grooves 12 are opened at the upper end of the rotating rod 1 and the lower end of the connecting rod 2. Bearings 11 are arranged in both installation grooves 12. The two bearing assemblies are connected and fixed by a fixing rod 9. The connecting rod 2 can rotate at the upper end of the rotating rod 1 through the rotation of the two bearings 11.

[0023] During the rotation of the instrument body, the support rod 4 will rotate by rotating at the upper end of the rotating rod 1 through the connecting rod 2. The fixing rod 9 connects and fixes the two bearings 11 by being inserted into the inner walls of the two bearings 11. The connecting rod 2 rotates through the rotation of the bearings 11, and at the same time as the connecting rod 2 rotates, the rotating block will be in contact with the ground to maintain fixation.

[0024] As Figure 2 and Figure 3 shown, a threaded rod 10 is arranged at the upper end of the connecting rod 2, and a threaded groove 13 is opened at the lower end of the support rod 4. The connecting rod 2 is connected and fixed to the support rod 4 by screwing the threaded rod 10 into the threaded groove 13. The two bearings 11 are adhesively fixed in the installation grooves 12 at the upper and lower ends of the rotating rod 1 and the connecting rod 2. The rotating rod 1 and the connecting rod 2 are both made of titanium alloy.

[0025] Connecting the bearings 11 to the rotating rod 1 and the connecting rod 2 by adhesion can better reduce the gap between the connections. The rotating rod 1 and the connecting rod 2 made of titanium alloy have high hardness and can also reduce resonance.

[0026] As Figure 1 and Figure 4 shown, a fixing groove 6 is opened at the lower side of the outer wall of the insertion block 5. The fixing groove 6 is used to fix the string support. The insertion block 5 is made of wood material. A limiting ring 7 is arranged at the lower end of the insertion block 5. A knob 3 is arranged at the left end of the limiting ring 7. The knob 3 is used to squeeze the outer wall of the support rod 4 to fix it. The anti-slip cap 8 is sleeved on the outer wall of the lower end of the rotating rod 1. The upper end of the support rod 4 is designed with a rounded corner and its surface is polished.

[0027] The support rod 4 is fixedly connected by inserting the insertion block 5 into the hole at the lower end of the body. The length of the support rod 4 extending out is adjusted according to the height at which the musician uses the instrument. Loosen the knob 3 to release the support rod 4 fixed by extrusion to adjust the length of the support rod 4, and then tighten the knob 3 to make it extrude the support rod 4 for fixation, and support the body through the support rod 4.

[0028] The working principle of the present utility model: During a performance, the length of the support rod 4 extending out can be adjusted according to the height at which the musician uses the instrument. Loosen the knob 3 to release the support rod 4 fixed by extrusion to adjust the length of the support rod 4, and then tighten the knob 3 to make it extrude the support rod 4 for fixation, and support the body through the support rod 4. When the musician twists along with the melody during playing, the rotating rod 1 and the connecting rod 2 will rotate. The rotating rod 1 and the connecting rod 2 rotate through the bearings 11 at the upper and lower ends of the internal fixing rod 9. The rotating block contacts the ground through the anti-slip cap 8 to prevent the support rod 4 from sliding. When the body rotates, the support rod 4 can drive the body on the support rod 4 to rotate by rotating at the upper end of the rotating rod 1 through the connecting rod 2, so as to realize that the anti-slip cap 8 does not rotate while the body and the support rod 4 rotate, and make the anti-slip cap 8 always fit with the ground to prevent the support rod 4 from sliding.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A cello endpin support, comprising a support rod (4) and an insertion block (5); The upper side of the outer wall of the support rod (4) is provided with an insertion block (5), and the insertion block (5) is used to be inserted into the hole at the tail of the cello body to fix the support rod (4). The lower side of the support rod (4) is provided with an anti-slip cap (8), and the lower end of the support rod (4) is provided with a connecting rod (2); It is characterized in that: The lower end of the connecting rod (2) is provided with a rotating rod (1). Installation grooves (12) are respectively opened at the upper end of the rotating rod (1) and the lower end of the connecting rod (2). Two bearings (11) are arranged in the two installation grooves (12), and the two bearing assemblies are connected and fixed by a fixing rod (9). The connecting rod (2) can rotate at the upper end of the rotating rod (1) through the rotation of the two bearings (11).

2. The cello endpin support according to claim 1, characterized in that: The upper end of the connecting rod (2) is provided with a threaded rod (10), and a threaded groove (13) is opened at the lower end of the support rod (4). The connecting rod (2) is connected and fixed to the support rod (4) by screwing the threaded rod (10) into the threaded groove (13).

3. The cello endpin support according to claim 1, characterized in that: The two bearings (11) are fixedly adhered in the installation grooves (12) at the upper and lower ends of the rotating rod (1) and the connecting rod (2). The rotating rod (1) and the connecting rod (2) are both made of titanium alloy.

4. A cello endpin support according to claim 1, characterized in that: A fixing groove (6) is opened at the lower side of the outer wall of the insertion block (5), and the fixing groove (6) is used to fix the string holder. The insertion block (5) is made of wood material.

5. The cello endpin support according to claim 4, wherein: A limiting ring (7) is arranged at the lower end of the insertion block (5), and a knob (3) is arranged at the left end of the limiting ring (7). The knob (3) is used to squeeze the outer wall of the support rod (4) to fix it.

6. The cello endpin support according to claim 1, characterized in that: The anti-slip cap (8) is sleeved on the outer wall of the lower end of the rotating rod (1). The upper end of the support rod (4) is designed with a rounded corner and the surface is polished.

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