CN212044590U

CN212044590U - Piano is fixing device for apron

Info

Publication number: CN212044590U
Application number: CN202020266844.1U
Authority: CN
Inventors: 夏雨
Original assignee: Huaihua University
Current assignee: Huaihua University
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-12-01
Anticipated expiration: 2030-03-06

Abstract

The utility model provides a piano is fixing device for apron, includes U type base, the top fixed mounting work platform of U type base, and the recess is seted up at work platform's top, has placed the backup pad in the recess, and work platform's bottom center department sets up first through-hole, and the blind hole has been seted up to the bottom of backup pad corresponding first through-hole, is equipped with the montant in the blind hole, and the lower extreme of montant is connected with elevating gear after passing first through-hole. This device can go up and down in step to four bolts through twisting a bolt of commentaries on classics, thereby press from both sides tightly and loosen the piano apron, the step of frequently twisting the bolt has been avoided, and because four bolts drive the clamp plate and compress tightly the piano apron in step, make the piano apron compressed tightly more steady, and make the difficult local atress deformation that produces in piano apron surface, and the backup pad plays the firm effect of support to the piano apron man-hour, rise the rotation with the backup pad when needs trimming, thereby realize the trimming to the piano apron, the process of manual handling trimming has been saved.

Description

Piano is fixing device for apron

Technical Field

The utility model belongs to piano apron fixing device field, specifically speaking are fixing device for piano apron.

Background

The piano apron is the major structure part of piano, the key is protected to the primary action of apron, the manual work manufacturing is adopted to current piano apron more, after the piano apron is cut into appropriate length, need thin and polish processing steps such as level to smooth to the surface of piano apron, need use the plane, utensil such as axe, need carry out good fixed with the piano apron this moment, and because the piano apron often needs the processing of changing sides, so fixing device must press from both sides tightly and loosen all comparatively simple swiftly, and present fixing device compresses tightly the process comparatively loaded down with trivial details, thereby need screwing up the bolt and push down the piano apron of treating processing one by one, and need artifically lift it when the piano apron changes sides at present, waste time and energy.

SUMMERY OF THE UTILITY MODEL

The utility model provides a piano is fixing device for apron for solve the defect among the prior art.

The utility model discloses a following technical scheme realizes:

the utility model provides a fixing device for piano apron, including U type base, the top fixed mounting work platform of U type base, the recess is seted up at work platform's top, the backup pad has been placed in the recess, work platform's bottom center department sets up first through-hole, the blind hole has been seted up to the bottom of backup pad corresponding first through-hole, be equipped with the montant in the blind hole, the bearing is connected between the upper portion of montant and the inner wall of blind hole, be connected with elevating gear after the lower extreme of montant passes first through-hole, the first type of falling L support of top bilateral symmetry fixed mounting of work platform, the equal front and back symmetry of diaphragm face of first type of falling L support has seted up the screw hole, the equal cooperation in the screw hole is equipped with the bolt, equal fixedly connected with clamp plate behind the screw hole that corresponds is passed to the lower extreme of bolt, the equal fixed suit belt pulley in nut outer lane of bolt, the outside of.

As above a fixing device for piano apron, the left side the top front end fixed mounting of first type of falling L support have the second type of falling L support, the diaphragm downside of second type of falling L support is equipped with the first telescopic link that the movable rod faces down, it is continuous through the torsional spring between the diaphragm bottom of second type of falling L support and the fixed cover top of first telescopic link, the vertical hexagonal prism of movable rod lower extreme fixedly connected with of first telescopic link, the lower extreme of hexagonal prism and the inner wall fixed connection of the hexagonal blind hole in the bolt of left place ahead, the horizontal second telescopic link of movable rod lateral wall fixed mounting of first telescopic link, the vertical several second through-hole that has evenly seted up of second telescopic link is corresponded to second telescopic link to second type of falling L support riser part.

According to the fixing device for the piano cover plate, the elastic plates are fixedly arranged at the bottoms of the pressure plates.

As above, a fixing device for piano apron, elevating gear be electric telescopic handle, the diaphragm top fixed mounting movable rod electric telescopic handle up of U type base, electric telescopic handle's movable rod upper end and the lower extreme fixed connection of montant.

The utility model has the advantages that: when the piano cover plate is required to be processed by using the utility model, the piano cover plate is firstly arranged at the top of the supporting plate, then the piano cover plate is matched and inserted into the hexagonal blind hole of any bolt by using the internal hexagonal wrench, the internal hexagonal wrench is rotated to drive the bolt to rotate, the belt pulley on the outer side wall of the nut rotates when the bolt rotates, and the four belt pulleys are connected by the same belt, so when one bolt rotates downwards in the corresponding threaded hole, the other bolts move downwards along with the bolt until the pressing plate at the lower end of the bolt presses the piano cover plate at the top of the supporting plate for processing, and the four bolts are linked and descend simultaneously, thereby the pressing force generated by the four pressing plates on the piano cover plate is equal, the piano cover plate is not easy to generate local stress deformation, and the fixation of the piano cover plate is more stable, when the edge of the piano cover plate needs to be changed, firstly, the bolt is upwards screwed through the inner hexagonal wrench to loosen the piano cover plate, then the vertical rod enables the supporting plate and the piano cover plate to be upwards jacked through the lifting device, when the bottom surface of the supporting plate is higher than the top surface of the working platform, the edge of the piano cover plate can be changed by rotating the supporting plate, after the edge is changed, the vertical rod is lowered through the lifting device, the supporting plate is clamped into the groove again, the supporting plate is not easy to shake, and the piano cover plate is convenient to process; the utility model has the advantages of simple structure, reasonable in design, can go up and down in step to four bolts through twisting a bolt of commentaries on classics, thereby press from both sides tightly and loosen the piano apron, the step of frequently twisting the bolt has been avoided, a large amount of time has been saved, machining efficiency has been improved, and because four bolts drive the clamp plate and compress tightly the piano apron in step, make the piano apron compressed tightly more steady, and make the piano apron surface be difficult for producing local atress and warp, and the backup pad plays the firm effect of support to the piano apron man-hour, rise the rotation with the backup pad when needs trimming, thereby realize the trimming to the piano apron, the process of artifical transport trimming has been saved, a large amount of manpowers and time have been saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention; FIG. 2 is a schematic view of the A-direction structure of FIG. 1; FIG. 3 is an enlarged view of I of FIG. 1; fig. 4 is an enlarged view of ii of fig. 2.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A fixing device for a piano cover plate comprises a U-shaped base 1, a working platform 2 is fixedly installed at the top of the U-shaped base 1, a groove 3 is formed in the top of the working platform 2, a supporting plate 4 is placed in the groove 3, a first through hole 5 is formed in the center of the bottom of the working platform 2, a blind hole 6 is formed in the bottom of the supporting plate 4 corresponding to the first through hole 5, a vertical rod 7 is arranged in the blind hole 6, the upper portion of the vertical rod 7 is connected with the inner wall of the blind hole 6 through a bearing, a lifting device is connected after the lower end of the vertical rod 7 passes through the first through hole 5, a first inverted L-shaped bracket 8 is fixedly installed at the top of the working platform 2 in a bilateral symmetry mode, threaded holes 9 are symmetrically formed in the front and back of a transverse plate surface of the first inverted L-shaped bracket 8, bolts 10 are matched in the threaded holes 9, a pressing plate 11 is fixedly, the outer sides of the four belt pulleys 12 are connected with the same belt 13, and hexagonal blind holes 14 with regular hexagonal cross sections are formed in the center of the top of the bolt 10. When the piano cover plate is required to be processed by using the utility model, the piano cover plate is firstly arranged at the top of the supporting plate 4, then the piano cover plate is matched and inserted into the hexagonal blind hole 14 of any one bolt 10 by using the internal hexagonal wrench, the internal hexagonal wrench is rotated to drive the bolt 10 to rotate, the belt pulley 12 on the outer side wall of the nut rotates along with the bolt 10 when the bolt 10 rotates, because the four belt pulleys 12 are connected with each other through the same belt 13, when one bolt 10 rotates downwards in the corresponding threaded hole 9, the other bolts 10 also move downwards along with the bolt, until the pressing plate 11 at the lower end of the bolt 10 presses the piano cover plate at the top of the supporting plate 4 for processing, and because the four bolts 10 generate linkage and descend simultaneously, the pressing force generated by the four pressing plates 11 on the piano cover plate is equal, and the piano cover plate is not easy to generate local, meanwhile, the fixing of the piano cover plate is more stable, when the edge of the piano cover plate needs to be changed, firstly, the bolt 10 is screwed upwards through an inner hexagonal wrench so as to loosen the piano cover plate, then, the vertical rod 7 enables the supporting plate 4 and the piano cover plate to be jacked upwards through the lifting device, when the bottom surface of the supporting plate 4 is higher than the top surface of the working platform 2, the edge of the piano cover plate can be changed by rotating the supporting plate 4, after the edge is changed, the vertical rod 7 descends through the lifting device, the supporting plate 4 is clamped into the groove 3 again, the supporting plate 4 is enabled not to shake easily, and the piano cover plate is convenient to process; the utility model has the advantages of simple structure, reasonable in design, can go up and down in step to four bolts through twisting a bolt 10 of changeing, thereby press from both sides tightly and loosen the piano apron, the step of frequently twisting the bolt has been avoided, a large amount of time has been saved, machining efficiency has been improved, and because four bolts 10 drive clamp plate 11 and compress tightly the piano apron in step, make the piano apron compressed tightly more steady, and make the piano apron surface be difficult for producing local atress and warp, and backup pad 4 plays the firm effect of support to the piano apron man-hour, rise the rotation with backup pad 4 when needs change limit, thereby realize the change limit to the piano apron, the process of artifical transport change limit has been saved, a large amount of manpowers and time have been saved.

Particularly, as shown in the figure, this embodiment left side the top front end fixed mounting of first type of falling L support 8 have the second type of falling L support 16, the diaphragm downside of second type of falling L support 16 is equipped with the first telescopic link 17 that the movable rod is down, link to each other through torsional spring 20 between the fixed cover top of diaphragm bottom and the first telescopic link 17 of second type of falling L support 16, the vertical hexagonal prism 15 of movable rod lower extreme fixedly connected with of first telescopic link 17, the inner wall fixed connection of hexagonal blind hole 14 in the lower extreme of hexagonal prism 15 and the left place ahead bolt 10, the horizontal second telescopic link 18 of movable rod lateral wall fixed mounting of first telescopic link 17, several second through-hole 19 has evenly been seted up to the second type of falling L support 16 riser part corresponding second telescopic link 8 is vertical. When the pressing plate 11 needs to be lowered to press the piano cover plate to be processed, a user stretches the movable rod of the second telescopic rod 18 to a proper length, then rotates the second telescopic rod 18 to drive the first telescopic rod 17 and the hexagonal prism 15 to rotate, the hexagonal prism 15 rotates to enable the bolt 10 to move downwards in the threaded hole 9 until the pressing plate 11 presses the piano cover plate to be processed, the second telescopic rod 18 plays a role of a labor-saving rod, then the movable rod of the second telescopic rod 18 is inserted into the corresponding second through hole 19, because the second telescopic rod 18 is fixed, the matching connection between the bolt 10 and the threaded hole 9 is not easy to loose when the piano cover plate is processed, the piano cover plate is not easy to shake, the processing quality of the piano cover plate is improved, meanwhile, the first telescopic rod 17 drives the torsion spring 20 to twist, when the piano cover plate needs to be loosened, the movable rod of the second telescopic rod 18 only needs to be extruded from the second through hole 19, torsional spring 20 rotates to reset to it is rotatory to drive first telescopic link 17 and hexagonal prism 15, thereby hexagonal prism 15 upwards pulls out bolt 10 and clamp plate 11 and unclamp the piano apron, easy operation, swift laborsaving, thereby improves the machining efficiency of piano apron.

Specifically, as shown in the figure, the elastic plate 21 is fixedly installed at the bottom of the pressing plate 11 in this embodiment. When the piano cover needs to be pressed, the damage to the piano cover can be reduced due to the elastic buffering action of the elastic plate 21.

Further, as shown in the figure, the elevating gear described in this embodiment is electric telescopic handle 22, electric telescopic handle 22 with the movable rod up is fixedly installed on the top of the transverse plate of U-shaped base 1, and the upper end of the movable rod of electric telescopic handle 22 is fixedly connected with the lower end of the vertical rod 7. The lifting and descending operations of the supporting plate 4 controlled by the electric telescopic rod 22 are simple, time-saving and labor-saving, and the lifting process can be stable.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a piano is fixing device for apron which characterized in that: comprises a U-shaped base (1), a working platform (2) is fixedly arranged at the top of the U-shaped base (1), a groove (3) is formed in the top of the working platform (2), a supporting plate (4) is placed in the groove (3), a first through hole (5) is formed in the center of the bottom of the working platform (2), a blind hole (6) is formed in the bottom of the supporting plate (4) corresponding to the first through hole (5), a vertical rod (7) is arranged in the blind hole (6), the upper part of the vertical rod (7) is in bearing connection with the inner wall of the blind hole (6), a lifting device is connected after the lower end of the vertical rod (7) passes through the first through hole (5), first inverted L-shaped supports (8) are fixedly arranged on the top of the working platform (2) in a bilateral symmetry manner, threaded holes (9) are symmetrically formed in the front and back of the transverse plates of the first inverted L-, the lower extreme of bolt (10) passes equal fixedly connected with clamp plate (11) behind corresponding screw hole (9), and the suit belt pulley (12) is all fixed to the nut outer lane of bolt (10), and the outside of four belt pulleys (12) is connected with same root belt (13) jointly, and the top center department of bolt (10) all sets up hexagonal blind hole (14) that the cross-section is regular hexagon.

2. A piano cover fixing device according to claim 1, wherein: left side the top front end fixed mounting of first type of falling L support (8) have the second type of falling L support (16), the diaphragm downside of second type of falling L support (16) is equipped with first telescopic link (17) that the movable rod is down, link to each other through torsional spring (20) between the fixed cover top of diaphragm bottom and first telescopic link (17) of second type of falling L support (16), the vertical hexagonal prism (15) of movable rod lower extreme fixedly connected with of first telescopic link (17), the lower extreme of hexagonal prism (15) and the inner wall fixed connection of hexagonal blind hole (14) in left place ahead bolt (10), the horizontal second telescopic link (18) of movable rod lateral wall fixed mounting of first telescopic link (17), even several second through-hole (19) have been seted up to second type of falling L support (16) riser part corresponding second telescopic link (18) is vertical.

3. A piano cover fixing device according to claim 1 or 2, wherein: and elastic plates (21) are fixedly arranged at the bottoms of the pressure plates (11).

4. A piano cover fixing device according to claim 1, wherein: the lifting device is an electric telescopic rod (22), the transverse plate top of the U-shaped base (1) is fixedly provided with the electric telescopic rod (22) with the movable rod upwards, and the upper end of the movable rod of the electric telescopic rod (22) is fixedly connected with the lower end of the vertical rod (7).