Portable foldable music performance rack

Abstract

The utility model discloses a portable foldable music performance rack, which relates to the technical field of music performance racks and comprises a base, a spiral groove is arranged on the middle side inside the base, an annular groove is arranged on the bottom side of the spiral groove, a baffle is rotatably connected to the intersection of the spiral groove and the annular groove, the baffle is arranged in a leftward inclined manner, and the spiral groove is provided with an annular groove. An outer column is arranged on the top side of the base, a circular ring is fixedly connected to the outer wall of the bottom end of the outer column, balls are arranged on one side of the outer wall of the circular ring and slide in the spiral groove and the annular groove, and an inner column is arranged in the outer column. The utility model has the advantages that the outer column is rotated to drive the balls on the ring to move along the ring groove, when the balls move to the position of the baffle plate, the balls enter the spiral groove through the arrangement of the baffle plate, and the outer column can be detached by continuously rotating, moved to the rear side of the interior of the base and fixed through the dustproof cover.

Description

TECHNICAL FIELD

[0001] The utility model relates to music performance stand technical field, concretely is a portable foldable music performance stand. BACKGROUND

[0002] Music performance stand is the support structure for music performance, is often used in concert, stage play etc. show activities, including music stand, pipa support, podium etc.;

[0003] The current music artist will adopt music stand to place music score when performing, in order to be applicable to the height of user, music stand has height adjustment function mostly, but the current music stand is mostly bulky, is inconvenient to store, is not enough convenient when carrying, in addition, when height adjustment, the operation step is more troublesome, needs manpower to pull the extension end of music stand, and still needs manual fixing to the extension end after adjustment, thereby influence the convenience of music stand when using, for this, we propose a portable foldable music performance stand. UTILITY MODEL CONTENTS

[0004] The utility model is portable foldable music performance stand.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a portable foldable music performance stand, including base, the inside middle side of base is equipped with spiral groove, the bottom side of spiral groove is provided with ring groove, the intersection of spiral groove and ring groove is rotatably connected with baffle, the baffle is to the left and is inclined to set, the top side of base is provided with outer column, the bottom end outer wall of outer column is fixedly connected with ring, the outer wall one side of ring is provided with ball, the ball slides in the inside of spiral groove and ring groove, the inside of outer column is provided with inner column, the top end of inner column is fixedly connected with sleeve, the inside middle side of sleeve is screw connected with T-shaped column, the top end left and right sides of T-shaped column are all slidingly connected with limit rod, the both sides of two limit rods are connected through spring no.

[0006] As a further scheme of the utility model: the bottom end one side of outer column is rotatably connected with connecting column, the right end of connecting column is fixedly connected with swivel joint through the outer wall one side of outer column, the left end outer wall of connecting column is fixedly connected with bevel gear no.

[0007] As a further scheme of the utility model: the outer wall bottom side of bevel gear no. is engagedly connected with bevel gear no. 2, the center of bevel gear no. 2 is provided with threaded rod, the bottom end of threaded rod is rotatably connected in the inside bottom side of outer column, the outer wall of threaded rod is screw connected in the inside of inner column.

[0008] As a further scheme of the utility model: the bottom end both sides of the inner column are fixedly connected with sliding blocks, the inside of the outer column is provided with a sliding groove on the side close to the sliding block, the two sliding blocks slide in the two sliding grooves respectively, and the bottom end of the sliding groove is above the conical gear one.

[0009] As a further scheme of the utility model: the top side of the base is provided with L-shaped grooves at the front and rear ends, the right end of the L-shaped groove at the front side is slidably connected with a limiting block, and the right side of the limiting block is inclined.

[0010] As a further scheme of the utility model: the rear end of the limiting block is fixedly connected with one end of spring two, and the other end of the spring two is fixedly connected to the inner wall of the base.

[0011] As a further scheme of the utility model: the left rear end of the base is provided with a dustproof cover, the rear side of the inside of the base is provided with a storage bin, and the dustproof cover and the storage bin are correspondingly arranged.

[0012] The beneficial effects of the utility model compared with the prior art are that:

[0013] 1. The ball on the ring is moved along the annular groove by rotating the outer column, when the ball reaches the position of the baffle, the ball enters the spiral groove through the arrangement of the baffle, and the outer column can be removed by continuing to rotate, and is moved to the rear side of the inside of the base and fixed through the dustproof cover; the limiting rod on both sides is retracted by pressing, and the placing plate can be removed and placed on the top of the base along the L-shaped groove, the whole is detachably arranged, and is convenient to store and carry.

[0014] 2. The conical gear one on the connecting column is rotated by rotating the rotating ring, so that the conical gear two is rotated, and the threaded rod is rotated, the inner column on the threaded rod moves vertically through the sliding block in the inside of the outer column, the whole step can be completed by rotating the rotating ring, the operation is convenient, and the difficulty of adjusting the height position of the placing plate is reduced.

[0015] Other advantages, objects and features of the utility model will be described in the subsequent specification to some extent, and to some extent, it will be obvious to those skilled in the art based on the study of the following text or can be taught from the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the whole contraction state in the embodiment of the utility model;

[0017] Figure 2The whole expansion state schematic view in the embodiment of the utility model;

[0018] Figure 3 The spring one position schematic view in the embodiment of the utility model;

[0019] Figure 4 The threaded rod position schematic view in the embodiment of the utility model;

[0020] Figure 5 The baffle position schematic view in the embodiment of the utility model;

[0021] Figure 6 The spring two position schematic view in the embodiment of the utility model.

[0022] In the drawing: 1, base; 2, spiral groove; 3, ring groove; 4, baffle; 5, outer column; 6, circular ring; 7, ball; 8, connecting column; 9, rotating ring; 10, conical gear one; 11, conical gear two; 12, threaded rod; 13, inner column; 14, sliding block; 15, sliding groove; 16, sleeve; 17, T-shaped column; 18, limiting rod; 19, spring one; 20, placing plate; 21, support; 22, L-shaped groove; 23, limiting block; 24, spring two; 25, dust cover. DETAILED DESCRIPTION

[0023] The specific embodiments of the utility model will be further described below in combination with the drawings, and it needs to be explained here that the description of these embodiments is used to help understanding the utility model, but does not constitute the limitation to the utility model.

[0024] In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] Please refer to the drawings of the utility model Figure 1 - the drawings of the utility model Figure 6 The utility model discloses a portable foldable music performance stand, including base 1, the inside middle side of base 1 is provided with spiral groove 2, the bottom side of spiral groove 2 is provided with ring groove 3, the intersection of spiral groove 2 and ring groove 3 is rotatably connected with baffle 4, baffle 4 is to the left and is inclined to set, the top side of base 1 is provided with outer column 5, the bottom end outer wall of outer column 5 is fixedly connected with circular ring 6, the outer wall one side of circular ring 6 is provided with ball 7, ball 7 slides in the inside of spiral groove 2 and ring groove 3, the inside of outer column 5 is provided with inner column 13, the top end of inner column 13 is fixedly connected with sleeve 16, the inside middle side of sleeve 16 is threadedly connected with T-shaped column 17, the top end left and right sides of T-shaped column 17 are slidably connected with limiting rod 18, two limiting rods 18 are connected through spring one 19, the outer wall of limiting rod 18 is provided with support 21, and one side of two supports 21 is slidably connected with placing plate 20.

[0026] Specifically, the bottom of the outer column 5 is inserted into the center of the base 1, so that the ball 7 moves into the spiral groove 2, continues to rotate, falls into the ring groove 3 through the inclined surface of the baffle 4, and continues to rotate to adjust the orientation of the outer column 5; the T-shaped column 17 is pulled up, the top end is separated from the sleeve 16, and then the T-shaped column 17 is rotated, and the T-shaped column 17 is rotated to a certain height through the threads on the bottom side of the T-shaped column 17, and then the limiting rods 18 on both sides are pressed to move into the T-shaped column 17, and then the two supports 21 on the back side of the placement plate 20 are moved to the sides away from the two limiting rods 18, the limiting rods 18 are released into the supports 21 to complete the connection, and the inclination angle of the placement plate 20 can be changed by following the rotation and lifting of the T-shaped column 17,

[0027] In example one, the bottom end of the outer column 5 is rotatably connected with a connecting column 8, the right end of the connecting column 8 penetrates through the outer wall of the outer column 5 and is fixedly connected with a rotating ring 9, the left end of the connecting column 8 is fixedly connected with a conical gear one 10, the outer wall of the conical gear one 10 is meshingly connected with a conical gear two 11, a threaded rod 12 is provided at the center of the conical gear two 11, the bottom end of the threaded rod 12 is rotatably connected to the inside bottom of the outer column 5, the outer wall of the threaded rod 12 is threadedly connected to the inside of an inner column 13, the bottom end of the inner column 13 is fixedly connected with a sliding block 14 on both sides, and the inside of the outer column 5 is provided with a sliding groove 15 on one side close to the sliding block 14. The two sliding blocks 14 slide in the two sliding grooves 15 respectively, and the bottom end of the sliding groove 15 is above the conical gear one 10.

[0028] Specifically, rotating the rotating ring 9 drives the conical gear one 10 on the connecting column 8 to rotate, thereby driving the conical gear two 11 to rotate, and in turn causing the threaded rod 12 to rotate. Since the inner column 13 on both sides of the threaded rod 12 slides in the outer column 5 through the sliding block 14, the threaded rod 12 rotates to move the inner column 13 upward for height adjustment.

[0029] In example two, the top side of the base 1 is provided with an L-shaped groove 22 at the front and rear ends, the right end of the front L-shaped groove 22 is slidably connected with a limiting block 23, the right side of the limiting block 23 is inclined, the rear end of the limiting block 23 is fixedly connected with one end of a spring two 24, and the other end of the spring two 24 is fixedly connected to the inner wall of the base 1.

[0030] Specifically, pressing the limiting block 23 drives the spring two 24 to contract, so that the placement plate 20 can be pulled out of the L-shaped groove 22 for assembly and use. The inclined arrangement of the limiting block 23 allows the placement plate 20 to be directly inserted into the L-shaped groove 22 for storage, which is convenient to use.

[0031] Working principle: When in use, open the dust cover 25, take out the outer column 5, insert the bottom into the center of the base 1, so that the ball 7 moves into the spiral groove 2 and continues to rotate. After passing through the inclined surface of the baffle 4, it falls into the annular groove 3. Continue to rotate to adjust the orientation of the outer column 5. When removing it, simply rotate it in the opposite direction. Because the baffle 4 is inclined, when the ball 7 rotates in the opposite direction and passes through the baffle 4, it passes through its surface and enters the spiral groove 2, thus completing the disassembly.

[0032] After the outer column 5 is installed, the rotating ring 9 drives the bevel gear 10 on the connecting column 8 to rotate, which in turn drives the bevel gear 11 to rotate, which in turn causes the threaded rod 12 to rotate. Since the inner column 13 on the threaded rod 12 slides inside the outer column 5 through the slider 14 on both sides, the rotation of the threaded rod 12 causes the inner column 13 to move upward, thus adjusting the height.

[0033] After the height adjustment is complete, pull the T-shaped column 17 upwards so that its top end is disengaged from the sleeve 16 and rotates. After rotating and rising to a certain height through the bottom thread of the T-shaped column 17, press the limit rods 18 on both sides to move them into the T-shaped column 17. At this time, pressing the limit block 23 will cause the spring 24 to retract, and the placement plate 20 can be pulled out from the L-shaped groove 22. Move the two brackets 21 on the back of the placement plate 20 to the side where the two limit rods 18 are separated. Release the levers so that the limit rods 18 enter the brackets 21 to complete the connection. The brackets 18 can also follow the rotation and rise of the T-shaped column 17 to change the tilt angle of the placement plate 20. Disassembly is done by reversing the operation. This completes the entire workflow.

[0034] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0036] It should be noted that the device structure and the drawings of the present application mainly describe the principle of the present application, and the setting of the power mechanism, power supply system and control system of the device is not completely described in the technical principle of the design, and under the premise that the above-mentioned principle of the present application is understood by the person skilled in the art, the specific power mechanism, power supply system and control system can be clearly known, and the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art.

[0037] The standard parts used therein can be purchased from the market, and can be ordered according to the description and drawings, the specific connection mode of each part adopts the conventional screw, rivet, welding and other conventional means in the prior art, the mechanical parts and equipment adopt the conventional type in the prior art, and the components known to the person skilled in the art, the structure and principle thereof are known to the person skilled in the art through technical manual or through conventional experimental method.

[0038] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the described embodiments.

[0039] For those skilled in the art, various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and still fall within the protection scope of the present application.

Claims

1. A portable and foldable music stand comprising a base (1), characterized in that: The inside of the base (1) is provided with a spiral groove (2), the bottom side of the spiral groove (2) is provided with a ring groove (3), the intersection of the spiral groove (2) and the ring groove (3) is rotatably connected with a baffle (4), the baffle (4) is provided to the left side, the top side of the base (1) is provided with an outer column (5), the bottom end outer wall of the outer column (5) is fixedly connected with a circular ring (6), the outer wall of the circular ring (6) is provided with a ball (7) on one side, the ball (7) slides in the spiral groove (2) and the ring groove (3), the inside of the outer column (5) is provided with an inner column (13), the top end of the inner column (13) is fixedly connected with a sleeve (16), the inside of the sleeve (16) is threadedly connected with a T-shaped column (17) on the middle side, the top end left and right sides of the T-shaped column (17) are slidably connected with a limiting rod (18), the limiting rod (18) is connected through a spring (19) between the two limiting rods (18), the outer wall of the limiting rod (18) is provided with a support (21), the side of the two supports (21) is slidably connected with a placing plate (20).

2. A portable, foldable music stand according to claim 1, wherein: The bottom end side of the outer column (5) is rotatably connected with a connecting column (8), the right end of the connecting column (8) penetrates through the outer wall of the outer column (5) and is fixedly connected with a rotating ring (9), the left end outer wall of the connecting column (8) is fixedly connected with a bevel gear (10).

3. A portable, foldable music stand according to claim 2, wherein: The outer wall bottom side of the bevel gear (10) is meshingly connected with a bevel gear (11), the center of the bevel gear (11) is provided with a threaded rod (12), the bottom end of the threaded rod (12) is rotatably connected in the inside bottom side of the outer column (5), the outer wall of the threaded rod (12) is threadedly connected in the inside of the inner column (13).

4. The portable, foldable music stand of claim 1, wherein: The bottom end sides of the inner column (13) are fixedly connected with a sliding block (14), the inside of the outer column (5) is provided with a sliding groove (15) on the side close to the sliding block (14), the two sliding blocks (14) respectively slide in the two sliding grooves (15), the bottom end of the sliding groove (15) is located above the bevel gear (10).

5. The portable, foldable music stand of claim 1, wherein: The top side front and rear ends of the base (1) are provided with L-shaped grooves (22), the right end rear side of the L-shaped groove (22) on the front side is slidably connected with a limiting block (23), the right side of the limiting block (23) is provided to the left side.

6. A portable, foldable music stand according to claim 5, wherein: The rear end of the limiting block (23) is fixedly connected with one end of a spring (24), the other end of the spring (24) is fixedly connected to the inner wall of the base (1).

7. The portable, foldable music stand of claim 1, wherein: The left rear end of the base (1) is provided with a dust cover (25), the inside rear side of the base (1) is provided with a storage bin, the dust cover (25) is provided correspondingly with the storage bin.

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