Quin rack capable of preventing transverse swing

Abstract

The utility model discloses an anti-transverse-swinging musical instrument frame, and the transverse swinging direction is defined as the X direction, the front-back direction of the musical instrument frame is defined as the Y direction, and the vertical direction is defined as the Z direction. The piano frame comprises two vertical pipes arranged in the Z direction, and the upper portions and the lower portions of the vertical pipes are provided with through square holes in the Y direction. An upper square pipe and a lower square pipe which are connected with the two vertical pipes are inserted into the through square holes, the two ends of the upper square pipe and the two ends of the lower square pipe are inserted in the X direction and fixed in the through square holes in the Z direction, and the inner walls of the through square holes are matched with the outer walls of the upper square pipe and the lower square pipe to prevent the piano frame from transversely swinging on the XZ vertical plane. The guitar stand adopts a connection mode that the transverse square tubes are inserted into the vertical round tubes, so that relative torsion displacement of the square tubes and the round tubes is avoided, the stability of the guitar stand is improved, and the guitar stand is simple in structure, low in cost and easy to implement.

Description

Technical Field

[0001] This utility model relates to the field of piano frame technology, and in particular to a piano frame that prevents lateral swaying. Background Technology

[0002] A piano stand is a common household support device for musical instruments such as electronic keyboards and guzheng. Because piano stands take up indoor space, most existing household piano stands are designed as detachable assembly structures, which are assembled when in use rather than disassembled and stacked when not in use.

[0003] However, the existing piano stands mostly use a 90° radial connection between the horizontal and vertical bars and are then fixed with screws. However, this connection method becomes unstable as the years of use increase and the number of disassemblies and reassemblies increases. In particular, after the horizontal tube is inserted into the vertical tube, the entire piano stand is prone to swaying from side to side, which in turn leads to instability of the piano body.

[0004] Therefore, how to design a piano stand that optimizes the connection between the uprights and crossbars while ensuring the original detachable function, and avoids relative torsional displacement after the connection, has become a technical problem that urgently needs to be solved by people in this field. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies and propose a piano frame that prevents lateral swaying. This piano frame uses a connection method where a horizontal square tube is inserted into a vertical round tube to avoid relative torsional displacement between the square tube and the round tube, thereby improving the stability of the piano frame. Moreover, the structure is simple, inexpensive, and easy to implement.

[0006] A piano frame designed to prevent lateral swaying is defined as follows: the lateral swaying direction is defined as the X-axis, the front-to-back direction of the frame is defined as the Y-axis, and the vertical direction is defined as the Z-axis. The frame includes two uprights positioned along the Z-axis, with through square holes at the top and bottom of each upright along the Y-axis. An upper tube and a lower tube, connecting the two uprights, are inserted into each through square hole. Both ends of the upper and lower tubes are inserted along the X-axis and fixed inside the through square holes along the Z-axis. The inner wall of the through square hole cooperates with the outer walls of the upper and lower tubes to prevent the piano frame from swaying laterally in the XZ vertical plane.

[0007] Preferably, connecting blocks are fixedly inserted into both ends of the upper and lower tubes; a reaction block with a side length greater than the through square hole is fastened and fixed to one open end of the through square hole; a fastening bolt is rotatably connected to the reaction block along the Y direction, and the threaded section of the fastening bolt is connected to the connecting block through and engaged with the connecting block.

[0008] Preferably, the bottom of the lower tube is rotatably connected to multiple casters.

[0009] The advantages and technical effects of this utility model are as follows:

[0010] This invention relates to a piano stand designed to prevent lateral swaying. The stand is positioned by inserting an upper tube and a lower tube into the through-hole of a vertical tube along the X-axis. The upper and lower tubes are fixed to the vertical tube in the Y-axis by reaction blocks, fastening bolts, and connecting blocks. Furthermore, the outer walls of the upper and lower tubes are fitted into the through-hole of the vertical tube, and the inner wall of the through-hole constrains the upper and lower tubes in the XZ vertical plane. This prevents uncontrollable torsion of the upper and lower tubes on the vertical tube. Even if the fastening bolts are not fully tightened, the piano stand can still be prevented from lateral swaying. This is significantly superior to the existing connection method of connecting two round tubes and fixing them with bolts. Attached Figure Description

[0011] Figure 1 This is the front view of the present invention;

[0012] Figure 2 This is a side view of the present invention;

[0013] Figure 3 This is a top view of the present invention;

[0014] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0015] Figure 5 for Figure 3 Side sectional view of the center lug.

[0016] In the diagram: 1-Riser; 2-Upper pipe; 3-Lower pipe; 4-Cast wheel; 5-Reaction block; 6-Connecting block; 7-Fasting bolt; 8-Hanging lug. Detailed Implementation

[0017] The embodiments of the utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and should not be construed as limiting the utility model.

[0018] In the description of the utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the utility model and simplifying the description. They 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, and therefore should not be construed as a limitation on the utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] This utility model discloses a piano frame designed to prevent lateral swaying. The lateral swaying direction is defined as the X-axis, the front-to-back direction of the piano frame is defined as the Y-axis, and the vertical direction is defined as the Z-axis. The piano frame includes two upright tubes 1 arranged in the Z-axis direction. The upper and lower parts of the upright tubes are provided with through square holes along the Y-axis. An upper tube 2 and a lower tube 3 connecting the two upright tubes are inserted into the through square holes. The two ends of the upper tube and the lower tube are inserted along the X-axis and fixed inside the through square holes along the Z-axis. The inner wall of the through square holes cooperates with the outer walls of the upper tube and the lower tube to prevent the piano frame from swaying laterally in the XZ vertical plane.

[0020] Preferably, connecting blocks 6 are fixedly inserted into both ends of the upper and lower tubes; a reaction block 5 with a side length greater than that of the through square hole is fastened and fixed on one open end of the through square hole; a fastening bolt 7 is inserted and rotated along the Y direction on the reaction block, and the threaded section of the fastening bolt is inserted and engaged with the connecting block.

[0021] Preferably, the bottom of the lower tube is rotatably connected to multiple casters 4.

[0022] In addition, in a preferred embodiment of this invention, an appropriate number of diagonal braces can be connected between the upper tube and the lower tube according to the weight of the instrument supported by the frame. The two ends of the diagonal braces are detachably connected to the upper tube and the lower tube respectively using mature methods in the prior art.

[0023] In addition, in a preferred embodiment of this utility model, a hanging ear 8 is bolted to the upper tube. The hanging ear has multiple adjusting screw holes vertically opened on it. The bolt passes through the adjusting screw holes and the upper tube, thereby fixing the hanging ear to the upper tube. The hanging ear is used to hang headset or electronic keyboard cables and other cables.

[0024] To more clearly illustrate the specific implementation of this utility model, an embodiment is provided below:

[0025] This utility model discloses a piano stand designed to prevent lateral swaying. It primarily addresses the problem of lateral swaying in existing detachable piano stands after assembly. The square outer walls of the upper and lower tubes are fitted together and constrained within the square inner wall of a through-hole. This ensures that after the upper and lower tubes are inserted into the through-hole of the upright tube, they can only extend and retract horizontally, preventing circumferential rotation. Finally, reaction blocks, connecting blocks, and fastening bolts securely connect the upright tube and the upper tube, as well as the upright tube and the lower tube, along the Y-axis. This design, while maintaining the detachable assembly function of existing piano stands, solves the lateral swaying problem by improving the connection method of the upper and lower tubes and the through-hole at a low cost.

[0026] Finally, any parts of the utility model not described herein shall utilize mature products and technologies already available in the prior art.

[0027] In the description of this specification, references to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example that are included in the embodiment or example of the utility model.

[0028] Although embodiments of the utility model have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A piano stand designed to prevent lateral swaying, wherein the lateral swaying direction is defined as the X-axis, the front-to-back direction of the piano stand is defined as the Y-axis, and the vertical direction is defined as the Z-axis; characterized in that: The piano frame includes two uprights arranged in the Z direction. The upper and lower parts of each upright have through square holes along the Y direction. An upper tube and a lower tube connecting the two uprights are inserted into each through square hole. The two ends of the upper tube and the lower tube are inserted along the X direction and fixed inside the through square hole along the Z direction. The inner wall of the through square hole and the outer wall of the upper tube and the lower tube cooperate to prevent the piano frame from swaying laterally in the XZ vertical plane.

2. The anti-lateral swaying piano stand according to claim 1, characterized in that: Both ends of the upper and lower tubes are fixedly inserted with connecting blocks; a reaction block with a side length greater than the through square hole is fastened and fixed to one open end of the through square hole; a fastening bolt is rotatably connected to the reaction block along the Y direction, and the threaded section of the fastening bolt is connected to the connecting block.

3. The anti-lateral swaying piano stand according to claim 1, characterized in that: The bottom of the lower tube is rotatably connected to multiple casters.

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