Supporting frame

Abstract

The utility model relates to the technical field of piano supporting, and discloses a supporting frame which comprises a first folding assembly and a second folding assembly which are connected together through a connecting double shaft. The positioning bolts are screwed downwards, the top ends of the positioning bolts can be separated from the interiors of the first vertical positioning holes and the second vertical positioning holes, then the two supporting assemblies can be folded, then the end plate is moved leftwards, and the end plate can drive the penetrating column and the matching cylinder to move leftwards at the same time; according to the folding device, after the folding device is used, not only can the supporting assembly be folded, but also the first folding assembly and the second folding assembly can be folded, so that the folding device is convenient to use, convenient to use and high in practicability. And transportation and storage are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to piano support technical field more specifically, the utility model relates to a support frame. BACKGROUND

[0002] Piano is a kind of keyboard instrument, by the Italian Bartolomeo Cristofori in 1709, piano is composed of key and metal string sound board, generally 88-key piano range from 27.5Hz to 4186.01Hz, 108-key piano is highest to 7902.13Hz, almost all the music of the music system, is one of the most extensive range of musical instruments, is used universally in solo, trio and accompaniment.

[0003] At present, the small piano in the market needs to be supported by support frame, but the existing piano support frame is large in size, so that transportation and storage are more troublesome. UTILITY MODEL CONTENTS

[0004] In order to overcome the defects of the prior art, the utility model provides a support frame, which has the advantages of convenient transportation and storage.

[0005] To achieve the above object, the utility model provides the following technical scheme: a support frame, comprising a first folding assembly and a second folding assembly, the first folding assembly and the second folding assembly are connected together through a connecting double shaft, and a support assembly is installed at the bottom of the first folding assembly and the second folding assembly.

[0006] The first folding assembly comprises a first horizontal plate, two symmetrical first rotating connecting shafts are fixedly installed on the lower surface left side of the first horizontal plate, a first vertical positioning hole is formed in the lower surface of the first horizontal plate and between the two first rotating connecting shafts, two groups of first rotating connecting seats are fixedly installed on the right side of the first horizontal plate and are in rotating cooperation with the connecting double shaft, a containing cavity is formed in the right side of the first horizontal plate, a penetrating column is inserted into the containing cavity, the left end of the penetrating column is inserted into the containing cavity, a matching cylinder is fixedly installed at the right end of the penetrating column, an end plate is fixedly installed at one end of the penetrating column in the containing cavity, and a return spring is fixedly connected to the left side of the end plate.

[0007] The second folding assembly comprises a second horizontal plate, two symmetrical second rotating connecting shafts are fixedly installed on the lower surface right side of the second horizontal plate, a second vertical positioning hole is formed in the lower surface of the second horizontal plate and between the two second rotating connecting shafts, two groups of second rotating connecting seats are fixedly installed on the left side of the second horizontal plate and are in rotating cooperation with the connecting double shaft, and a matching column corresponding to the matching cylinder is fixedly installed on the left side of the second horizontal plate.

[0008] As a preferred technical scheme of the utility model, the support assembly comprises a vertical support plate, two groups of third rotation connecting seats are symmetrically arranged on the top of one side of the vertical support plate.

[0009] As a preferred technical scheme of the utility model, a bottom plate is fixedly installed at the bottom end of the vertical support plate, and two symmetrically arranged moving rollers are fixedly installed on the lower surface of the bottom plate.

[0010] As a preferred technical scheme of the utility model, the third rotation connecting seat on the support assembly on the left side is rotationally connected with the first rotation connecting shaft, and the third rotation connecting seat on the support assembly on the right side is rotationally connected with the second rotation connecting shaft.

[0011] As a preferred technical scheme of the utility model, a placing cavity is formed in the top of the vertical support plate, and a positioning bolt is screwed through the inner top surface of the placing cavity.

[0012] As a preferred technical scheme of the utility model, the top end of the positioning bolt is inserted into the first vertical positioning hole and the second vertical positioning hole.

[0013] Compared with the prior art, the utility model has the beneficial effects as follows:

[0014] The utility model discloses a positioning bolt is screwed down, and the top end of the positioning bolt will be separated from the inside of the first vertical positioning hole and the second vertical positioning hole, then two support assemblies can be folded up, and then the end plate is moved to the left side, the end plate will drive the penetrating column and the matching cylinder to move to the left side simultaneously, and the reset spring will be contracted and shortened, and the matching cylinder moves to the left side and will be separated from the outside of the matching column, then the first folding assembly and the second folding assembly can be folded up, and the utility model not only can fold the support assembly after use, but also can fold the first folding assembly and the second folding assembly, so that it is convenient to transport and store. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model kind support frame;

[0016] Figure 2 It is a structural schematic view of the utility model kind support frame folding;

[0017] Figure 3 It is a structural schematic view of the utility model first folding assembly;

[0018] Figure 4 It is a structural schematic view of the utility model second folding assembly;

[0019] Figure 5The utility model discloses a structure schematic diagram of connecting double axle.

[0020] Figure 6 The utility model discloses a structure schematic diagram of supporting assembly.

[0021] In the drawing: 1, first folding assembly, 101, first horizontal plate, 102, first rotary connecting axle, 103, first vertical positioning hole, 104, first rotary connecting seat, 105, containing cavity, 106, through -going post, 107, cooperation cylinder, 108, end plate, 109, reset spring, 2, second folding assembly, 201, second horizontal plate, 202, second rotary connecting axle, 203, second vertical positioning hole, 204, second rotary connecting seat, 205, cooperation post, 3, connecting double axle, 4, supporting assembly, 401, vertical support plate, 402, bottom plate, 403, moving gyro wheel, 404, third rotary connecting seat, 405, placing cavity, 406, positioning bolt. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0023] As Figures 1 to 6 The utility model provides a support frame, including first folding assembly 1 and second folding assembly 2, first folding assembly 1 and second folding assembly 2 are connected together through connecting double axle 3, and the bottom of first folding assembly 1 and second folding assembly 2 is installed with a supporting assembly 4.

[0024] The first folding assembly 1 includes a first horizontal plate 101, the lower surface left side of first horizontal plate 101 is fixedly installed with two symmetrical first rotary connecting axle 102, the lower surface of first horizontal plate 101 and between two first rotary connecting axle 102 are set with a first vertical positioning hole 103, the right side of first horizontal plate 101 is fixedly installed with two groups of first rotary connecting seat 104 of rotary cooperation with connecting double axle 3, the right side of first horizontal plate 101 is set with a containing cavity 105, the right side of first horizontal plate 101 is inserted with a through -going post 106, the left end of through -going post 106 is inserted in the inside of containing cavity 105, the right end of through -going post 106 is fixedly installed with a cooperation cylinder 107, one end of through -going post 106 in containing cavity 105 is fixedly installed with an end plate 108, the left side of end plate 108 is fixedly connected with a reset spring 109,

[0025] The second folding assembly 2 includes a second horizontal plate 201. Two symmetrically arranged second rotating connecting shafts 202 are fixedly installed on the right side of the lower surface of the second horizontal plate 201. A second vertical positioning hole 203 is opened on the lower surface of the second horizontal plate 201 between the two second rotating connecting shafts 202. Two sets of second rotating connecting seats 204 that rotate with the connecting double shafts 3 are fixedly installed on the left side of the second horizontal plate 201. A mating column 205 corresponding to the mating cylinder 107 is fixedly installed in the middle of the left side of the second horizontal plate 201.

[0026] The support assembly 4 includes a vertical support plate 401. A base plate 402 is fixedly installed at the bottom end of the vertical support plate 401. Two symmetrically arranged movable rollers 403 are fixedly installed on the lower surface of the base plate 402. Two sets of symmetrically distributed third rotating connecting seats 404 are fixedly installed on the top of one side of the vertical support plate 401. The third rotating connecting seat 404 on the left side of the support assembly 4 is rotatably engaged with the first rotating connecting shaft 102. The third rotating connecting seat 404 on the right side of the support assembly 4 is rotatably engaged with the second rotating connecting shaft 202. A placement cavity 405 is opened at the top of the vertical support plate 401. A positioning bolt 406 is threaded through the inner top surface of the placement cavity 405. The top end of the positioning bolt 406 is inserted into the corresponding first vertical positioning hole 103 and second vertical positioning hole 203.

[0027] Working principle and usage process of this utility model:

[0028] After the support frame of this utility model is used, the positioning bolt 406 is screwed down. The top of the positioning bolt 406 will disengage from the inside of the first vertical positioning hole 103 and the second vertical positioning hole 203. Then, the two support components 4 can be folded up. Then, the end plate 108 is moved to the left. The end plate 108 will drive the through column 106 and the mating cylinder 107 to move to the left at the same time. At the same time, the return spring 109 will contract and shorten. The mating cylinder 107 will disengage from the outside of the mating column 205 when it moves to the left. Then, the first folding component 1 and the second folding component 2 can be folded up. After the utility model is used, it can not only fold the support component 4, but also fold the first folding component 1 and the second folding component 2, making it convenient for transportation and storage.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A support frame, characterized in that: It includes a first folding component (1) and a second folding component (2), which are connected together by a connecting double shaft (3), and a support component (4) is installed at the bottom of both the first folding component (1) and the second folding component (2). The first folding assembly (1) includes a first horizontal plate (101). Two symmetrically arranged first rotating connecting shafts (102) are fixedly installed on the left side of the lower surface of the first horizontal plate (101). A first vertical positioning hole (103) is opened on the lower surface of the first horizontal plate (101) between the two first rotating connecting shafts (102). Two sets of first rotating connecting seats (104) that rotate with the connecting double shafts (3) are fixedly installed on the right side of the first horizontal plate (101). A receiving cavity (105) is opened on the right side of the plate (101). A through post (106) is inserted into the right side of the first horizontal plate (101). The left end of the through post (106) is inserted into the inside of the receiving cavity (105). A matching sleeve (107) is fixedly installed on the right end of the through post (106). An end plate (108) is fixedly installed on one end of the through post (106) inside the receiving cavity (105). A return spring (109) is fixedly connected to the left side of the end plate (108). The second folding assembly (2) includes a second horizontal plate (201). Two symmetrically arranged second rotating connecting shafts (202) are fixedly installed on the right side of the lower surface of the second horizontal plate (201). A second vertical positioning hole (203) is opened on the lower surface of the second horizontal plate (201) between the two second rotating connecting shafts (202). Two sets of second rotating connecting seats (204) that rotate with the connecting double shafts (3) are fixedly installed on the left side of the second horizontal plate (201). A mating column (205) corresponding to the mating cylinder (107) is fixedly installed in the middle of the left side of the second horizontal plate (201).

2. The support frame according to claim 1, characterized in that: The support assembly (4) includes a vertical support plate (401), and two sets of symmetrically distributed third rotating connecting seats (404) are fixedly installed on the top of one side of the vertical support plate (401).

3. A support frame according to claim 2, characterized in that: A base plate (402) is fixedly installed at the bottom end of the vertical support plate (401), and two symmetrically arranged movable rollers (403) are fixedly installed on the lower surface of the base plate (402).

4. A support frame according to claim 3, characterized in that: The third rotating connecting seat (404) on the support assembly (4) located on the left side is rotatably engaged with the first rotating connecting shaft (102), and the third rotating connecting seat (404) on the support assembly (4) located on the right side is rotatably engaged with the second rotating connecting shaft (202).

5. A support frame according to claim 4, characterized in that: The top of the vertical support plate (401) has a placement cavity (405), and a positioning bolt (406) is threaded through the inner top surface of the placement cavity (405).

6. A support frame according to claim 5, characterized in that: The top end of the positioning bolt (406) is inserted into the corresponding first vertical positioning hole (103) and second vertical positioning hole (203).

Images