CN109979416A

CN109979416A - A kind of piano hinge structure

Info

Publication number: CN109979416A
Application number: CN201910399309.5A
Authority: CN
Inventors: 闫雨; 张晓艳
Original assignee: Weifang Engineering Vocational College
Current assignee: Weifang Engineering Vocational College
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2019-07-05
Anticipated expiration: 2039-05-14
Also published as: CN109979416B

Abstract

A kind of piano hinge structure, the present invention relates to hinge technical fields, No.1 fixed plate is fixedly installed on No.1 hinge plate, pin hole is offered in No.1 fixed plate, No.1 rotation axis is fixedly installed on No. two hinge plates, the end bearing of No.1 rotation axis is installed with No. two rotation axis, No. two rotation axis activities are plugged in pin hole, No.1 short slot is provided in No. two rotation axis, No.1 sliding slot is provided in No.1 fixed plate, No.1 sliding slot and pin hole perforation setting form through slot, No. two rotation axis are slidably arranged in through slot by No.1 short slot, No. two fixed plates are fixedly installed in No. two rotation axis, torsional spring is arranged in No.1 rotation axis, one suspension column of torsional spring is fixed in No. two fixed plates, the another suspension column of torsional spring is fixed on No. two hinge plates；Its rotation axis can move forward after cover board rotating opening, lean against on side plate convenient for cover board inclination, it is ensured that cover board is placed after opening to be stablized.

Description

A kind of piano hinge structure

Technical field

The present invention relates to hinge technical fields, and in particular to a kind of piano hinge structure.

Background technique

Hinge is that one kind can connect two objects, and make relatively turnable connection anchor between two articles.

There are key cover board, tone chamber's cover board etc. to need using hinge connection on the structure member of piano, convenient for its folding；For For cramped construction fashioned iron qin, in order to reduce the volume of piano, the distance between key cover board and tone chamber's side plate are smaller, this makes It obtains cover board after opening, is close to side plate, be easy to close because unexpected, and then injure user, be leaned on if cover board is opened to retread On side plate, it can effectively ensure that cover board is placed and stablize, so that it will not topple over to close easily.

Summary of the invention

In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of design is reasonable, easy to use Piano hinge structure, rotation axis can move forward after cover board rotating opening, lean against on side plate convenient for cover board inclination, it is ensured that cover board It places and stablizes after opening.

To achieve the above object, the technical solution adopted by the present invention is that: it include No.1 hinge plate, No. two hinge plates, one Number rotation axis, No. two rotation axis, wherein No.1 hinge plate is fixed on qin seat, and No. two hinge plates are fixed at cover board On, it is fixedly installed No.1 fixed plate on No.1 hinge plate, pin hole is offered in No.1 fixed plate, fixation is set on No. two hinge plates It is equipped with No.1 rotation axis, the end bearing of No.1 rotation axis is installed with No. two rotation axis, and No. two rotation axis activities are plugged in pin hole It is interior, No.1 short slot is provided in No. two rotation axis, No. two rotation axis are fastened in No.1 fixed plate by No.1 short slot, and No.1 is solid No.1 sliding slot is provided on fixed board, No.1 sliding slot and pin hole perforation setting form through slot, and No. two rotation axis pass through No.1 short slot It is slidably arranged in through slot, No. two fixed plates is fixedly installed in No. two rotation axis, are arranged with torsional spring in No.1 rotation axis, turn round One suspension column of spring is fixed in No. two fixed plates, and the another suspension column of torsional spring is fixed on No. two hinge plates.

Further, No. two short slots are offered on the upper side edge of No. two hinge plates, are consolidated on the side wall of No. two short slots Surely No. two sliding slots are provided with, No. three rotation axis are movably set in No. two short slots, and the both ends of No. three rotation axis are slided insert respectively It is located in No. two sliding slots of the left and right sides, is fixedly installed No. three hinge plates in No. three rotation axis, on the front side wall of No. two short slots It is fixedly installed limit plate, No. three hinge plate activities are folded between limit plate and cover board, are worn and are fixed on No. three hinge plates Thread bush is fixedly installed placement plate by thread bush on No. three hinge plates, and the front side of No. two hinge plates is arranged in placement plate Side.

Further, threaded rod is fixedly installed in No. two rotation axis, and threaded rod is arranged far from No.1 and turns One end of moving axis, locking nut is installed on threaded rod, and locking nut activity is supported and is located on the side wall of No.1 fixed plate.

Further, it being fixedly installed guide sleeve in the No.1 fixed plate, activity is inserted with support rod in guide sleeve, The lower end of support rod is fixedly installed spring, and the other end of spring is fixed at the bottom of guide sleeve, and the upper end of support rod is high It is arranged in the upper side edge of No.1 fixed plate.

Further, No. three sliding slots, and No. three sliding slots and No. two hinge plates are fixedly installed on No. two hinge plates Angle setting, the interior sliding of No. three sliding slots are provided with jacking block, and supporting table is fixedly installed on No.1 hinge plate, and jacking block setting is supporting The upper side of platform.

The working principle of the invention is: rotating plate is opened, and makes it with qin seat in °, at this point, the No.1 in No. two rotation axis Short slot is parallel with No.1 sliding slot, and No. two rotation axis are slidably in No.1 sliding slot, when No. two rotation axis slide into No.1 sliding slot When, No. two rotation axis fixations can not rotate；When torsional spring, which is in, not to stress under state, No. two fixed plates and No.1 hinge plate in °, When No. two rotation axis, which slide into No.1 sliding slot, fixes, cover board can be rotated in small range angle by torsional-spring supported, this small model It encloses angle to control by the peak torque of torsional spring, this small range angle is ± 10 ° of vertical direction, when No. two rotation axis slide into In pin hole, No. two rotation axis are free to rotate, and torsional spring resists No. two fixed plates and No.1 hinge plate at this time, at this time No.1 rotation axis It is relatively fixed with No. two rotation axis, it can rotate simultaneously.

After adopting the above structure, the invention has the following beneficial effects:

1, it is provided with the No.1 sliding slot to connect with pin hole in No.1 fixed plate, is arranged in No. two rotation axis being plugged in pin hole There is the No.1 short slot with No.1 sliding slot to cooperation, and then No. two rotation axis are can turn to after fixed angle in sliding in No.1 sliding slot It is dynamic, it can slide back and forth after finally may make the cover board being fixed on No. two hinge plates to open；

2, it is installed with the No.1 rotation axis to fix No. two hinge plates in No. two rotation axis, and passes through torsional spring for No.1 rotation axis It is relatively fixed with No. two rotation axis, it aloows small angle range between No.1 rotation axis and No. two rotation axis to rotate, guarantees Cover board open after can small range shake, guarantee after No. two rotation axis slide into No.1 sliding slot, cover board can fine rotation, thus No. two rotation axis are protected not to be destroyed.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.

Fig. 1 is structural schematic diagram of the invention.

Fig. 2 is the A-A cross-sectional view in Fig. 1.

Fig. 3 is the B-B cross-sectional view in Fig. 1.

Fig. 4 is the structural schematic diagram of No.1 fixed plate in the present invention.

Fig. 5 is the structural schematic diagram of No. two rotation axis in the present invention.

Fig. 6 is the structural schematic diagram of No.1 hinge plate in the present invention.

Fig. 7 is the structural schematic diagram of guide sleeve and support rod in the present invention.

Description of symbols:

Qin seat 1, cover board 2,3, No. two hinge plates 4 of No.1 hinge plate, No.1 fixed plate 5, pin hole 6, No.1 rotation axis 7, two turns Moving axis 8, No.1 short slot 9,10, No. two fixed plates 11 of No.1 sliding slot, the rotation of the short slot 13, two sliding slot 14, three of torsional spring 12, two 15, No. three hinge plates 16 of axis, limit plate 17, thread bush 18, placement plate 19, threaded rod 20, locking nut 21, guide sleeve 22, branch Strut 23, spring 24, No. three sliding slots 25, jacking block 26, supporting tables 27.

Specific embodiment

The present invention will be further described below with reference to the drawings.

The components such as qin seat, cover board shown in Detailed description of the invention are only to illustrate the company of hinge structure in present embodiment Binding structure, in specific production, the structure member of the pianos ontology such as qin seat, cover board can in the light of actual conditions select ruler appropriate It is very little, the normal use of hinge structure is not influenced.

Referring to as shown in Fig. 1-Fig. 7, present embodiment includes 3, No. two hinge plates 4 of No.1 hinge plate, No.1 rotation 7, No. two rotation axis 8 of axis, wherein 3 screw of No.1 hinge plate is fixed on qin seat 1, and No. two 4 screws of hinge plate are fixed on cover board 2 On, integrally formed with No.1 fixed plate 5 on No.1 hinge plate 3, specific processing method is by the side edge bending of No.1 hinge plate 3 Fixed plate 5 is formed, pin hole 6 is offered in No.1 fixed plate 5, weldering is equipped with No.1 rotation axis 7, No.1 rotation on No. two hinge plates 4 The end bearing of axis 7 is installed with No. two rotation axis 8, and No. two 8 activities of rotation axis are plugged in pin hole 6, are arranged in No. two rotation axis 8 There is No.1 short slot 9, No. two rotation axis 8 are fastened in No.1 fixed plate 5 by No.1 short slot 9, are provided with one in No.1 fixed plate 5 Number sliding slot 10, No.1 sliding slot 10 and the perforation setting of pin hole 6 form through slot, and No. two rotation axis 8 pass through the sliding setting of No.1 short slot 9 In through slot, weldering is equipped with No. two fixed plates 11 in No. two rotation axis 8, is arranged with torsional spring 12 in No.1 rotation axis 7, torsional spring 12 One suspension column is welded in No. two fixed plates 11, and the another suspension column of torsional spring 12 is welded on No. two hinge plates 4.

Further, No. two short slots 13, the side wall of No. two short slots 13 are offered on the upper side edge of No. two hinge plates 4 Upper weldering is equipped with No. two sliding slots 14, and No. three rotation axis 15, and the both ends of No. three rotation axis 15 point are movably set in No. two short slots 13 It Hua Dong not be plugged in No. two sliding slots 14 of the left and right sides, weldering is equipped with No. three hinge plates 16, No. two short slots in No. three rotation axis 15 Weldering is equipped with limit plate 17 on 13 front side wall, and No. three 16 activities of hinge plate are folded between limit plate 17 and cover board 2, No. three hinges It is worn on plate 16 and is fixed with thread bush 18, placement plate 19 is fixed with by 18 screw of thread bush on No. three hinge plates 16, and place The front side of No. two hinge plates 4 is arranged in plate 19, No. three hinge plates 16 is twitched upwards to the upper side of limit plate 17, and at this time three Number rotation axis 15 is rotatably laid flat No. three hinge plates 16, and then can be laid flat placement plate 17, and then can put in placement plate 17 Placement plate 17 is rotated fitting cover board 2, No. three hinge plates 15 can be inserted between limit plate 17 and No. two hinge plates 4 by placing articles It is fixed.

Further, weldering is equipped with threaded rod 20 in No. two rotation axis 8, and threaded rod 20 is arranged far from No.1 and turns One end of moving axis 7, locking nut 21 is installed on threaded rod 20, and the side wall for being located at No.1 fixed plate 5 is supported in 21 activity of locking nut On, locking nut 21 is screwed, No. two rotation axis 8 may make to be not easy to rotate, terminal-velocity under its rotation can be slowed down when closing cover board 2 Degree can prevent cover board 2 from falling too fast hit key.

Further, weldering is equipped with guide sleeve 22 in the No.1 fixed plate 5, and activity is inserted with support rod in guide sleeve 22 23, the lower end weldering of support rod 23 is equipped with spring 24, and the other end gluing of spring 24 is fixed on the bottom of guide sleeve 22, support rod 23 Upper end be higher than No.1 fixed plate 5 upper side edge be arranged, when covering cover board 2, support rod 23 withstands cover board 2, can slow down its conjunction Impulse force when upper can prevent cover board 2 from quickly closing and smash key.

Further, weldering is equipped with No. three sliding slots 25, and No. three sliding slots 25 and No. two hinge plates on No. two hinge plates 4 The setting of 4 angles, the interior sliding of No. three sliding slots 25 are provided with jacking block 26, supporting table 27, jacking block 26 are fixedly installed on No.1 hinge plate The upper side of supporting table 27 is set, jacking block 26 is slided, supporting table 27 can be resisted by jacking block 26 when cover board 2 closes, can protected Cover board 2 is held at a distance from key.

The working principle of this specific embodiment: being: rotating plate 2 is opened, and makes it with qin seat 1 in 90 °, at this point, No. two turn No.1 short slot 9 on moving axis 8 is parallel with No.1 sliding slot 10, and No. two rotation axis 8 slidably in No.1 sliding slot 10, are rotated when No. two When axis 8 is slid into No.1 sliding slot 10, No. two 8 fixations of rotation axis can not be rotated；When torsional spring 12, which is in, not to stress under state, two Number fixed plate 11 and No.1 hinge plate 3 are in 90 °, and when No. two rotation axis 8, which slide into No.1 sliding slots 10, fixes, cover board 2 can pass through Torsional spring 12 supports, and rotates in small range angle, this small range angle is controlled by the peak torque of torsional spring 12, this small range angle Degree is ± 10 ° of vertical direction, and when No. two rotation axis 8 slide into pin hole 6, No. two rotation axis 8 are free to rotate, at this time torsional spring 12 resist No. two fixed plates 11 and No.1 hinge plate 3, and No.1 rotation axis 7 and No. two rotation axis 8 are relatively fixed at this time, can turn simultaneously It is dynamic.

After adopting the above structure, present embodiment is advantageously:

1, the No.1 sliding slot 10 to connect with pin hole 6 is provided in No.1 fixed plate 5, No. two rotation axis 8 being plugged in pin hole 6 On be provided with No.1 short slot 9 with from No.1 sliding slot 10 to cooperation, and then No. two rotation axis 8 are can turn to after fixed angle in No.1 Sliding in sliding slot 10, can slide back and forth after finally may make the cover board being fixed on No. two hinge plates 42 to open；

2, it is installed with the No.1 rotation axis 7 to fix No. two hinge plates 4 in No. two rotation axis 8, and passes through torsional spring 12 for No.1 Rotation axis 7 and No. two rotation axis 8 are relatively fixed, aloow small angle range between No.1 rotation axis 7 and No. two rotation axis 8 Rotation, guarantee after cover board 2 is opened can small range shake, guarantee after No. two rotation axis 8 slide into No.1 sliding slot 10,2 energy of cover board Enough fine rotations, so that No. two rotation axis 8 of protection are not destroyed.

The above is only used to illustrate the technical scheme of the present invention and not to limit it, and those of ordinary skill in the art are to this hair The other modifications or equivalent replacement that bright technical solution is made, as long as it does not depart from the spirit and scope of the technical scheme of the present invention, It is intended to be within the scope of the claims of the invention.

Claims

1. a kind of piano hinge structure, it is characterised in that: it includes No.1 hinge plate (3), No. two hinge plates (4), No.1 rotation Axis (7), No. two rotation axis (8), wherein No.1 hinge plate (3) is fixed on qin seat (1), and No. two hinge plate (4) fixations are set It sets on cover board (2), is fixedly installed on No.1 hinge plate (3) No.1 fixed plate (5), No.1 fixed plate offers pin on (5) Hole (6) is fixedly installed No.1 rotation axis (7) on No. two hinge plates (4), and the end bearing of No.1 rotation axis (7) is installed with two Number rotation axis (8), No. two rotation axis (8) activities are plugged in pin hole (6), are provided with No.1 short slot on No. two rotation axis (8) (9), No. two rotation axis (8) are fastened on No.1 fixed plate (5) by No.1 short slot (9), and No.1 fixed plate is provided with one on (5) Number sliding slot (10), No.1 sliding slot (10) and pin hole (6) perforation setting form through slot, and No. two rotation axis (8) pass through No.1 short slot (9) it is slidably arranged in through slot, is fixedly installed No. two fixed plates (11) on No. two rotation axis (8), in No.1 rotation axis (7) It is arranged with torsional spring (12), a suspension column of torsional spring (12) is fixed on No. two fixed plates (11), the another of torsional spring (12) Suspension column is fixed on No. two hinge plates (4).

2. a kind of piano hinge structure according to claim 1, it is characterised in that: No. two hinge plates (4) it is upper No. two short slots (13) are offered on side, and No. two sliding slots (14), No. two short slots are fixedly installed on the side wall of No. two short slots (13) (13) No. three rotation axis (15) are movably set in, and the both ends of No. three rotation axis (15) are slided be plugged in the left and right sides respectively In No. two sliding slots (14), No. three hinge plates (16), the front side wall of No. two short slots (13) are fixedly installed on No. three rotation axis (15) On be fixedly installed limit plate (17), No. three hinge plate (16) activities are folded between limit plate (17) and cover board (2), No. three conjunction It wears and is fixed with thread bush (18) in page board (16), be fixedly installed placement plate by thread bush (18) on No. three hinge plates (16) (19), and placement plate (19) is arranged in the front side of No. two hinge plates (4).

3. a kind of piano hinge structure according to claim 1, it is characterised in that: solid on No. two rotation axis (8) Surely it is provided with threaded rod (20), and threaded rod (20) is arranged far from one end of No.1 rotation axis (7), revolves and sets on threaded rod (20) Have locking nut (21), locking nut (21) activity, which is supported, to be located on the side wall of No.1 fixed plate (5).

4. a kind of piano hinge structure according to claim 1, it is characterised in that: solid in the No.1 fixed plate (5) Surely it is provided with guide sleeve (22), guide sleeve (22) interior activity is inserted with support rod (23), the lower end fixed setting of support rod (23) Have spring (24), the other end of spring (24) is fixed at the bottom of guide sleeve (22), and the upper end of support rod (23) is higher than one The upper side edge setting of number fixed plate (5).

5. a kind of piano hinge structure according to claim 1, it is characterised in that: solid on No. two hinge plates (4) Surely No. three sliding slots (25) are provided with, and No. three sliding slots (25) are arranged with No. two hinge plate (4) angles, sliding in No. three sliding slots (25) It is provided with jacking block (26), is fixedly installed on No.1 hinge plate (3) supporting table (27), jacking block (26) is arranged in supporting table (27) Upper side.

6. a kind of piano hinge structure according to claim 1, it is characterised in that: its working principle is: rotating plate (2) it opens, makes it with qin seat (1) in 90 °, at this point, the No.1 short slot (9) and No.1 sliding slot (10) on No. two rotation axis (8) are flat Row, No. two rotation axis (8) slidably in No.1 sliding slot (10), when No. two rotation axis (8) slide into No.1 sliding slot (10) it is interior when, No. two rotation axis (8) fixations can not rotate；When torsional spring (12), which are in, not to stress under state, No. two fixed plates (11) and No.1 are closed Page board (3) is in 90 °, and when No. two rotation axis (8), which slide into No.1 sliding slot (10), fixes, cover board (2) can be propped up by torsional spring (12) Support, rotates in small range angle, and when No. two rotation axis (8) slide into pin hole (6), No. two rotation axis (8) are free to rotate, Torsional spring (12) resists No. two fixed plates (11) and No.1 hinge plate (3) at this time, at this time No.1 rotation axis (7) and No. two rotation axis (8) relatively fixed, it can rotate simultaneously.