Quin rack

Abstract

The utility model relates to the technical field of supporting seats of musical instruments, and discloses a musical instrument frame which comprises a telescopic rod, two joint pieces connected to the two ends of the telescopic rod, supporting legs connected to the joint pieces respectively and a musical instrument pillow arranged on the joint pieces, and fixing assemblies are arranged at the two ends of the telescopic rod respectively. When the fixing assembly abuts against the joint piece, the telescopic rod and the joint piece are completely fixed. According to the musical instrument frame provided by the utility model, the two ends of the telescopic rod are respectively provided with the fixing assemblies, and when the fixing assemblies abut against the joint pieces, the telescopic rod and the joint pieces are completely fixed, so that when the musical instrument frame is used, the telescopic rod and the joint pieces can be completely fixed only by adjusting the fixing assemblies to abut against the joint pieces; therefore, the overall stability of the musical instrument rack is ensured, the musical instrument is prevented from inclining or falling off in the using process, and the using effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of musical instrument supports, in particular to a musical instrument stand. Background Art

[0002] In the related piano stand patents previously applied by the applicant (grant announcement numbers: CN203760066U, CN207558395U), the telescopic rod and the legs are directly connected through joints. The legs are opened during use and the piano stand is folded when not in use, making it easy to carry and transport. However, it was found during use that since there is no fixed structure between the telescopic rod and the joint, if an external force is encountered during use, the joint and the telescopic rod may move around their hinge point, causing the instrument on the piano stand to tilt or fall, affecting its use. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a musical instrument stand. When the legs are opened, the telescopic rods and the joints are completely fixed to prevent the musical instrument from tilting or falling during use, thereby ensuring the use effect.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A piano stand comprises a telescopic rod, two joints connected to the two ends of the telescopic rod, legs respectively connected to the joints and a nut arranged on the joints, wherein fixing components are respectively provided at the two ends of the telescopic rod, and when the fixing components abut against the joints, the telescopic rod and the joints are completely fixed.

[0006] Preferably, the joint component comprises a joint component body, an outer wall of the joint component body is circumferentially evenly distributed with a first connecting seat and two second connecting seats, the fixing assembly abuts against the first connecting seat, and the supporting leg is connected to the second connecting seat.

[0007] Preferably, the fixing assembly comprises a fixing seat fixedly mounted on the outer wall of the telescopic rod, a fixing sleeve is sleeved on the fixing seat so as to be movably mounted along the axial direction of the telescopic rod, and the fixing sleeve is in contact with the first connecting seat.

[0008] Preferably, the side of the first connecting seat abutting against the fixing sleeve is a first abutting surface, and the area of ​​the first abutting surface is S1, and the side of the fixing sleeve abutting against the first connecting seat is a second abutting surface, and the area of ​​the second abutting surface is S2, S2 = (2 ~ 3.25) S1.

[0009] Preferably, an arc-shaped reinforcement block is provided on the lower surface of the first connecting seat, the radius of the reinforcement block is R, the distance between the center of the reinforcement block and the first abutting surface is L, and the height of the first abutting surface is H;

[0010] R=(0.6~0.75)H; L=(0.85~0.95)H.

[0011] Preferably, a rotating shaft is provided in the telescopic rod, a connecting shaft is provided on the first connecting seat, the rotating shaft is perpendicular to the connecting shaft, and the other end of the rotating shaft passes through the fixing assembly to connect to the connecting shaft.

[0012] Preferably, the nut comprises a pillow seat for placing the musical instrument and a connecting rod connecting the pillow seat and the joint member, and the pillow seat is covered with a silicone pad.

[0013] Preferably, the joint part is provided with a through hole, the side wall of the through hole is provided with a locking hole, a locking screw is threadedly connected to the locking hole, a locking groove is circumferentially provided on the connecting rod, the connecting rod is inserted into the through hole, and the locking screw abuts against the locking groove.

[0014] Preferably, the telescopic rod includes an outer tube and an inner tube slidably connected to the outer tube, the inner wall of the outer tube has a ridge, and the ridge extends along the length direction of the outer tube, and the inner wall of the inner tube at one end away from the joint is provided with a guide groove matching the ridge.

[0015] Preferably, the outer wall of the inner tube is provided with at least two guide blocks in an annular array, and a guide groove is formed between two adjacent guide blocks.

[0016] Compared with the prior art, the music stand of the utility model has the following beneficial effects: by respectively arranging fixing components at both ends of the telescopic rod, and when the fixing components abut against the joint part, the telescopic rod and the joint part are completely fixed, so that when in use, it is only necessary to adjust the fixing components to abut against the joint part to ensure that the telescopic rod and the joint part are completely fixed, thereby ensuring the overall stability of the music stand, avoiding the tilting or falling of the musical instrument during use, and ensuring the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the piano stand of the utility model.

[0018] Figure 2 It is a front view of the joint component of the utility model.

[0019] Figure 3 It is an axonometric view of the joint component of the present utility model.

[0020] Figure 4 It is a partial view of the piano stand of the utility model.

[0021] Figure 5The utility model is a structural schematic diagram of the nut of the piano stand.

[0022] Figure 6 It is a schematic structural diagram of the telescopic rod of the piano stand of the utility model.

[0023] Among them: 1-telescopic rod, 11-inner tube, 12-outer tube, 13-convex ridge, 14-guide groove, 15-guide block, 2-joint, 21-joint body, 22-first connecting seat, 23-second connecting seat, 24-reinforcement block, 25-avoidance groove, 26-locking hole, 3-nut, 31-nut seat, 32-connecting rod, 33-silicone pad, 34-locking groove, 4-fixing assembly, 41-fixing seat, 42-fixing sleeve, 5-leg. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0027] like Figure 1 , 4As shown, a musical instrument stand of a preferred embodiment of the utility model comprises a telescopic rod 1, two joints 2 connected to the two ends of the telescopic rod 1, legs 5 respectively connected to the joints 2, and a nut 3 arranged on the joints 2. The legs 5 are connected by multiple sections, and a locking device is provided at the connection. The height of the legs 5 can be adjusted according to the needs of the user, so that it is suitable for use by different groups of people. The two ends of the telescopic rod 1 are respectively provided with fixing components 4. When the fixing components 4 are in contact with the joints 2, the telescopic rod 1 and the joints 2 are completely fixed.

[0028] The music stand based on the above technical features, by respectively arranging fixing components 4 at both ends of the telescopic rod 1, and when the fixing components 4 abut against the joint part 2, the telescopic rod 1 and the joint 2 are completely fixed. Therefore, when in use, it is only necessary to adjust the fixing components 4 to abut against the joint part 2 to ensure that the telescopic rod 1 and the joint part 2 are completely fixed, thereby ensuring the overall stability of the music stand, avoiding the tilting or falling of the musical instrument during use, and ensuring the use effect.

[0029] like Figure 2 , 3 As shown, in this embodiment, the joint part 2 includes a joint part body 21, and the outer wall of the joint part body 21 is evenly distributed with a first connection seat 22 and two second connection seats 23 in the circumferential direction. The fixing assembly 4 is in contact with the first connection seat 22, and the support leg 5 is connected to the second connection seat 22. The second connection seat 22 is respectively provided with a limiting step for limiting the expansion angle of the connecting rod and the support leg relative to the movable joint part, and a vertical connecting rod and a support leg axis are respectively provided at the corresponding positions of the connecting rod and the support leg. The blocking piece is movably inserted in the telescopic rod and the support leg, so that the opening angle of the support leg 5 is easy to adjust and limited within the angle range of 60°.

[0030] In this embodiment, a rotating shaft is provided inside the telescopic rod 1, and a connecting shaft is provided on the first connecting seat 22. The rotating shaft is perpendicular to the connecting shaft, and the other end of the rotating shaft passes through the fixing assembly 4 to connect to the connecting shaft. When the piano frame is folded, the telescopic rod 1 and the joint part 2 are relatively moved, and the joint part 2 rotates relative to the rotating shaft. At the same time, in order to avoid interference between the first connecting seat 22 and the connecting shaft during the rotation process, an avoidance groove 25 is provided on the first connecting seat 22. The two ends of the avoidance groove 25 are respectively connected to the rotating shaft and one end of the first connecting seat 22 close to the fixing assembly 4. During the rotation of the joint part 2 relative to the telescopic rod 1, the connecting shaft accommodates or disengages from the avoidance groove 25, thereby ensuring the smoothness of the rotation. When it is necessary to open, the joint part 2 only needs to be moved away from the telescopic rod 1.

[0031] like Figure 4As shown, in this embodiment, the fixing assembly 4 includes a fixing seat 41 fixed on the outer wall of the telescopic rod 1, and a fixing sleeve 42 is sleeved on the fixing seat 41 so as to be movable along the axial direction of the telescopic rod 1, and the fixing sleeve 42 abuts against the first connecting seat 22. Preferably, the fixing sleeve 42 is threadedly connected to the fixing seat 41, and when the fixing sleeve 42 needs to be moved, it only needs to be rotated to adjust the position of the fixing sleeve 42, which is not only simple and convenient to operate, but also the threaded adjustment distance can be adjusted to any distance, thereby ensuring the fixing effect between the joint 2 and the telescopic rod 1.

[0032] In this embodiment, for the convenience of description, the side where the first connecting seat 22 abuts against the fixing sleeve 42 is the first abutting surface, and the area of ​​the first abutting surface is S1, and the side where the fixing sleeve 42 abuts against the first connecting seat 22 is the second abutting surface, and the area of ​​the second abutting surface is S2, that is, when opened, the first abutting surface and the second abutting surface are abutted, and when folded, the first abutting surface and the second abutting surface are separated, and the first folding surface needs to be rotated 180 degrees relative to the second folding surface. For easy folding, the area of ​​the first folding surface needs to be smaller than that of the second folding surface. Specifically, S2=(2~3.25)S1, such as S2=2.5S1, S2=2.8S1, S2=3S1, S2=3.2S1, etc., which can be selected according to actual conditions.

[0033] In addition, since the area of ​​the first folding surface is relatively small and the strength of the first connecting seat needs to be ensured, an arc-shaped reinforcement block 24 can be set on the lower surface of the first connecting seat 22, but the reinforcement block 24 cannot affect the folding between the joint part 2 and the telescopic rod 1, so the distance between them needs to be strictly controlled. Specifically, if the radius of the reinforcement block 24 is R, the distance between the center of the reinforcement block 24 and the first abutting surface is L, and the height of the first abutting surface is H; then they satisfy R = (0.6 ~ 0.75) H; L = (0.85 ~ 0.95) H, and the value range of H is 3 to 5 cm. When the above conditions are met at the same time, the smoothness of folding and opening can be guaranteed, and the self-strength and fixing strength of each component can be guaranteed.

[0034] like Figure 5As shown, in this embodiment, the nut 3 includes a nut seat 31 for placing the musical instrument and a connecting rod 32 connecting the nut seat 31 and the joint member 2, and the nut seat 31 is covered with a silicone pad 33. By providing the silicone pad 33, it is elastic and can avoid hard contact between the musical instrument and the nut 3, thereby protecting the surface of the musical instrument and preventing damage. In addition, since the silicone pad 33 itself has sufficient strength and wear resistance and corrosion resistance, its service life can be guaranteed. The upper surface of the silicone pad 33 can be directly a horizontal surface, or an anti-slip strip can be provided on the water surface to ensure the stability of the placement of the musical instrument; a groove can also be provided on the upper surface of the silicone pad 33 to accommodate the support feet at the bottom of the musical instrument to ensure the stability of the connection of the musical instrument.

[0035] In order to facilitate the connection of the nut 3, a through hole is provided on the joint body 21, and a locking hole 26 is provided on the side wall of the through hole. A locking screw is connected to the inner thread of the locking hole 26, and a locking groove 34 is provided circumferentially on the connecting rod 32. The connecting rod 32 is inserted into the through hole, and the locking screw abuts against the locking groove 24. When in use, the connecting rod 32 is placed in the through hole and locked by the locking screw. When not in use, the nut is removed for easy storage.

[0036] like Figure 6 As shown, in this embodiment, the telescopic rod 1 includes an outer tube 12 and an inner tube 11 slidably connected to the outer tube 12, and the outer wall of the outer tube 12 at one end away from the joint 2 is provided with a locking device, and the locking device can be any existing locking structure. When the telescopic rod 1 is adjusted to a required length, the locking assembly is locked to make the inner tube 11 and the outer tube 12 relatively fixed. The inner wall of the outer tube 12 has a ridge 13, and the ridge 13 extends along the length direction of the outer tube 12. The inner wall of the inner tube 11 at one end away from the joint 2 is provided with a guide groove 14 that matches the ridge 13. The ridge 13 extends from the free end of the outer tube 12 to 2-10 cm from the end face of the end where the outer tube 12 is connected to the joint 2, and the length of the guide groove 14 is 1-5 cm. Through the sliding guide device of the telescopic rod 1, when the telescopic rod 1 is pulled open, the ridge 13 is restricted by the guide groove 14, and the inner tube 11 and the outer tube 12 cannot rotate relative to each other. Then, after the four legs 5 of the music stand are opened, they cannot rotate relative to each other around the axis of the telescopic rod 1, and the stability of the music stand is significantly improved. When the telescopic rod 1 is shortened to the shortest, the guide groove 14 is located at the outer tube 12 where the ridge 13 is not set, and the ridge 14 and the guide groove 14 are released from the restriction, and the inner tube 11 and the outer tube 12 of the telescopic rod 1 can rotate relative to each other, so that the left and right pairs of legs 5 of the music stand can be folded on both sides of the telescopic rod 1 respectively, and the telescopic rod 1 is located in the middle of the four legs 5. In this way, after the music stand is folded, the four legs 5 will not collide with each other to cause paint peeling or even damage, so that the volume of the music stand after folding is smaller and more convenient to carry or transport.

[0037] In addition, to facilitate the arrangement of the guide groove 14, the outer wall of the inner tube 11 is provided with at least two guide blocks 15 in an annular array, and one guide groove 14 is formed between two adjacent guide blocks 15. Preferably, there are two guide blocks 15 and two guide grooves 14, which are arranged opposite to each other.

[0038] In this embodiment, the legs 5 are formed by two or more sleeve rods, and the outer sleeve of the sleeve rod connection is provided with a locking device. Each movable joint is connected to two legs through a rotating shaft and separated in an eight-shaped shape. The support height can be freely selected by sleeve connection of multiple sleeve rods, and the eight-shaped support on the ground forms a plane triangular structure, which is the most stable structure among plane structures. The locking device can be any existing structure.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A piano stand, comprising a telescopic rod, two joints connected to both ends of the telescopic rod, legs connected to the joints respectively, and a nut arranged on the joints, characterized in that: Both ends of the telescopic rod are respectively provided with fixing components. When the fixing components are in contact with the joint component, the telescopic rod and the joint component are completely fixed.

2. The musical instrument stand according to claim 1, characterized in that: The joint component comprises a joint component body, the outer wall of which is evenly distributed with a first connection seat and two second connection seats in the circumferential direction, the fixing assembly is in contact with the first connection seat, and the supporting leg is connected with the second connection seat.

3. The musical instrument stand according to claim 2, characterized in that: The fixing assembly comprises a fixing seat fixedly arranged on the outer wall of the telescopic rod, a fixing sleeve is sleeved on the fixing seat so as to be movably mounted along the axial direction of the telescopic rod, and the fixing sleeve is in contact with the first connecting seat.

4. The musical instrument stand according to claim 3, characterized in that: The first connection seat abuts against the fixed sleeve on a first abutting surface, and the area of ​​the first abutting surface is S1. The fixed sleeve abuts against the first connection seat on a second abutting surface, and the area of ​​the second abutting surface is S2, S2 = (2-3.25) S1.

5. The musical instrument stand according to claim 4, characterized in that: An arc-shaped reinforcement block is provided on the lower surface of the first connecting seat, the radius of the reinforcement block is R, the distance between the center of the reinforcement block and the first abutting surface is L, and the height of the first abutting surface is H; R=(0.6~0.75)H; L=(0.85~0.95)H.

6. The musical instrument stand according to claim 2, characterized in that: A rotating shaft is arranged inside the telescopic rod, a connecting shaft is arranged on the first connecting seat, the rotating shaft is perpendicular to the connecting shaft, and the other end of the rotating shaft passes through the fixing assembly and is connected to the connecting shaft.

7. The musical instrument stand according to any one of claims 1 to 6, characterized in that: The nut comprises a nut seat for placing the musical instrument and a connecting rod connecting the nut seat and the joint member, and the nut seat is covered with a silicone pad.

8. The musical instrument stand according to claim 7, characterized in that: The joint part is provided with a through hole, the side wall of the through hole is provided with a locking hole, the locking hole is threadedly connected with a locking screw, the connecting rod is circumferentially provided with a locking groove, the connecting rod is inserted into the through hole, and the locking screw abuts against the locking groove.

9. The musical instrument stand according to any one of claims 1 to 6, characterized in that: The telescopic rod includes an outer tube and an inner tube slidably connected to the outer tube. The inner wall of the outer tube has a ridge extending along the length direction of the outer tube. The inner wall of the inner tube at one end away from the joint is provided with a guide groove matching the ridge.

10. The musical instrument stand according to claim 9, characterized in that: The outer wall of the inner tube is divided into at least two guide blocks in an annular array, and a guide groove is formed between two adjacent guide blocks.

Images