CN202669380U - Mounting structure for piano trundle - Google Patents
Mounting structure for piano trundle Download PDFInfo
- Publication number
- CN202669380U CN202669380U CN 201220319315 CN201220319315U CN202669380U CN 202669380 U CN202669380 U CN 202669380U CN 201220319315 CN201220319315 CN 201220319315 CN 201220319315 U CN201220319315 U CN 201220319315U CN 202669380 U CN202669380 U CN 202669380U
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- piano
- mounting structure
- caster
- vertical shaft
- wheel disc
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Abstract
The utility model relates to a mounting structure for a piano trundle. The mounting structure comprises the piano trundle, wherein the piano trundle comprises a vertical shaft and a wheel plate sleeved on the vertical shaft; the mounting structure for the piano trundle further comprises a mounting sleeve; the mounting sleeve comprises a sleeve part and an axial limiting step located at the upper end of the sleeve part; an internal threaded hole is formed at the lower end of the sleeve part; a penetrating insert slot is arranged on a piano base; the mounting sleeve is inserted into the insert slot from up to down; the axial limiting step is used for resisting against the piano base from the above position; an external thread is arranged on an outer wall of the wheel plate; and the wheel plate is screwed into the internal threaded hole of the mounting sleeve from bottom to top. The mounting structure for the piano trundle has the advantages of suitability for a transparent piano, clean and beautiful appearance, convenience and quickness in mounting, capability of saving threaded connectors, difficulty in loosening, long-lasting durability, and difficulty in skidding under the condition of repeated assembling and disassembling. The mounting structure for the piano trundle belongs to the mounting technique of the piano.
Description
Technical field
The utility model relates to the field engineering of piano, specifically, relates to a kind of mounting structure of caster of piano, is particularly useful for transparent piano.
Background technology
The piano volume is large, Heavy Weight, when it is moved to the use location, wishes that it can be parked in stably there and arbitrarily not move, and therefore a kind of conveniently moving need to be installed below the piano base, parks reliable and stable universal caster wheel.
Granted publication has been number for the Chinese patent of CN 2218671Y discloses a kind of universal caster wheel for piano, it by vertical shaft, wheel disc, ball bearing of main shaft, support, be located at the transverse axis of support both sides and the roller that is installed on the transverse axis forms; Wheel disc is boss shape, its central authorities have the vertical shaft hole, form the sliding shaft sleeve of vertical shaft, its four jiaos have the mounting hole that is connected for the piano base, ball bearing of main shaft is installed between wheel disc and the support, its upper and lower end face is captiveed joint with support with wheel disc respectively, captives joint with the inner sleeve of ball bearing of main shaft and the top of support in the vertical shaft hole that vertical shaft passes wheel disc.The universal caster wheel of this structure when mounted, the piano base is reserved jack, wheel disc inserts in the jack from the below, the mounting hole that screw passes wheel disc screws in the piano base, thereby wheel disc is fixed on the piano base, again vertical shaft and wheel disc are fixed as one, thus with the universal caster wheel integral installation on the piano base.
For the assembling that makes universal caster wheel simpler, be everlasting and offer circular groove on the vertical shaft, suit one stopper ring with annular jaggy in the circular groove, the periphery of stopper ring protrudes from the outer wall of vertical shaft, because the existence of breach need to apply enough large axial force, vertical shaft hole inwall extruding stopper ring, breach can diminish, and the external diameter of stopper ring also can diminish; Accordingly, the ring-shaped depression position also is set in the vertical shaft hole; When wheel disc and vertical shaft are installed, by force vertical shaft is knocked in the wheel disc from the below, so that stopper ring enters the ring-shaped depression position in the vertical shaft hole.Vertical shaft is stuck in the ring-shaped depression position by stopper ring, realizes the axial location of vertical shaft.
There is following shortcoming in existing structure: 1. many screws of needs could be firmly fixing with a universal caster wheel, mounting or dismounting inconvenience.2. there is a kind of transparent piano in the high-end piano market, its shell is made of the all-transparent material, such as imitative crystal material, organism glass etc., and the inner structure of piano is very clear, both can piano as musical instrument, also can collect piano and appreciated as an art work; If existing this mounting structure is applied on the transparent qin, see through transparent piano base, wheel disc be can see, vertical shaft and many screws of wheel disc are arranged in, the utmost point is not attractive in appearance, has affected the whole artistic effect of transparent piano.
The utility model content
For the technical matters that exists in the prior art, the purpose of this utility model is: the mounting structure that a kind of caster of piano of simple in structure, easy for installation and good looking appearance is provided.
In order to achieve the above object, the utility model adopts following technical scheme:
A kind of mounting structure of caster of piano comprises caster of piano; Caster of piano comprises vertical shaft and the wheel disc that is enclosed within on the vertical shaft; The mounting structure of caster of piano also comprises installing sleeve; Installing sleeve comprises the sleeve part and is positioned at the axial limiting step of upper end, sleeve part that wherein, the lower end of sleeve part is provided with internal thread hole; The piano base is provided with the jack that runs through, and installing sleeve inserts jack from top to bottom, and the axial limiting step withstands the piano base from the top; The outer wall of wheel disc is provided with outside thread, and wheel disc screws in the internal thread hole of installing sleeve from the bottom up.After adopting this structure, the fastening that spins of the up and down screw thread by installing sleeve and wheel disc can be realized the installation of caster of piano, on the one hand, wheel disc no longer needs screw to be fixed on the caster of piano, saves threaded connector, easy for installation, free-hand or can realize installing by simple Allen key; On the other hand, installing sleeve is wheel disc and vertical shaft parcel, when this structure applications on transparent piano, the outside column structure that only can see bright and clean installing sleeve, the outward appearance simplicity generosity shows details, be conducive to promote the class of transparent piano, make it to become an art work worthy of the name; Moreover even repeatedly carrying, this mounting structure also is difficult for loose, durable.
Cooperating between sleeve part and the jack is free-running fit.After adopting this structure, be convenient to the sleeve part and insert jack, it is bad also to avoid the sleeve part that jack is supportted simultaneously, damages the piano base.
The outer wall of sleeve part is cylindric, and the cross-sectional plane of axial limiting step is rectangle.After adopting this structure, the piano leg is equipped with at the position corresponding with the axial limiting step, the top of piano base, and the shape that the axial limiting step places the piano underfooting the to reserve cavity volume that caves in accordingly, because the axial limiting step is rectangle, without relatively rotating, wheel disc and installing sleeve are also without relatively rotating between axial limiting step and the piano pin.
The material of installing sleeve is corrosion-resistant steel.After adopting this structure, corrosion-resistant steel intensity is higher, has corrosion stability, durable; Corrosion-resistant steel presents silvering simultaneously, especially matches with transparent piano.
Wheel disc is boss shape; After wheel disc screwed in installing sleeve, the distance between the lower end of installing sleeve and the projection of wheel disc was less than 5 millimeters.After adopting this structure, installing sleeve as much as possible with wheel disc parcel, profile is more attractive in appearance.
The lower end of piano base is provided with the depression position of the projection that holds wheel disc.After adopting this structure, more compact structure, outward appearance is cleaner and tidier.
Be provided with the vertical shaft hole that holds vertical shaft in the wheel disc, the lower end in vertical shaft hole is provided with inner hexagonal hole; In the time of on being projected in horizontal surface, the vertical shaft hole is positioned at inner hexagonal hole or the vertical shaft hole is inscribed within inner hexagonal hole.After adopting this structure, available Allen key inserts inner hexagonal hole, and wheel disc is rotated installation.The vertical shaft hole is positioned at inner hexagonal hole or the vertical shaft hole is inscribed within inner hexagonal hole during projection, and namely the vertical shaft hole is convenient to the corresponding vertical shaft of vertical shaft hole dimension smoothly by the inner hexagonal hole position less than inner hexagonal hole.
The lower end of the outer wall of sleeve part is provided with chamfering.After adopting this structure, be convenient to the sleeve part and insert jack.
A kind of installation method of caster of piano, the mounting structure of use caster of piano; Comprise the steps: that a. inserts jack from top to bottom with installing sleeve first; B. again wheel disc is screwed in from the bottom up in the internal thread hole of installing sleeve until screw; C. at last vertical shaft is packed into from the bottom up in the vertical shaft hole of wheel disc, finish the installation of caster of piano.After adopting this method, easy for installation.
Among the step b, use Allen key that wheel disc is tightened onto on the installing sleeve.After adopting this method, easy for installation, laborsaving, screw better effects if.
Generally speaking, the utlity model has following advantage: be applicable to transparent piano, profile is succinctly attractive in appearance; Easy for installation, quick; Save threaded connector; Be difficult for loose, durable, though through repeatedly mounting or dismounting, also be difficult for skidding.
Description of drawings
Fig. 1 is the cutaway view of the mounting structure of caster of piano.
Fig. 2 is the upward view of wheel disc.
Fig. 3 is along the cutaway view of the direction of arrow among Fig. 2.
Fig. 4 is the full sectional view of installing sleeve front view.
Fig. 5 is the right elevation of installing sleeve.
Fig. 6 is the birds-eye view of installing sleeve.
Wherein, 1 is installing sleeve, and 2 is caster of piano, and 3 is the piano base, and 4 is the piano leg, and 11 is the sleeve part, and 12 is the axial limiting step, and 13 is internal thread hole, and 21 is vertical shaft, and 22 is wheel disc, and 23 is the vertical shaft hole, and 24 is inner hexagonal hole, and 31 is jack, and 32 are the depression position.
The specific embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
The mounting structure of the caster of piano that Fig. 1 is extremely shown in Figure 6 comprises: installing sleeve 1, caster of piano 2, piano base 3.
Installing sleeve 1 comprises: sleeve part 11 and axial limiting step 12.Sleeve part 11 is cylindrical, and the lower end is provided with the internal thread hole 13 that arranges along axial direction.The upper end of sleeve part 11 is provided with the axial limiting step 12 of rectangular plate shape.The lower end of the outer wall of sleeve part 11 is provided with chamfering (not shown chamfering).
Caster of piano 2 comprises: vertical shaft 21, wheel disc 22 and miscellaneous part.Vertical shaft 21 is cylindric.Wheel disc 22 is boss shape, and it is cylindric that main body is, and the below is projection, and is in the form of annular discs, is provided with the vertical shaft hole 23 that arranges along axial direction in the wheel disc 22, and vertical shaft 21 is inserted in the vertical shaft hole 23, can finish the assembling of vertical shaft 21 and wheel disc 22.Caster of piano 2 is existing structure, comprising: ball bearing of main shaft, support, be located at the transverse axis of support both sides and be installed in parts such as roller on the transverse axis.Caster of piano 2 in the utility model is that with existing structure difference the outer wall of wheel disc 22 is provided with outside thread, and the projection of wheel disc need not the mounting hole that is provided for being threaded, the below in vertical shaft hole 23 is provided with inner hexagonal hole 24, and when being projected in horizontal surface, the inner hexagonal hole 24 outer vertical shaft holes 23 that are cut in.
During installation, adopt following steps: a. first installing sleeve to be inserted jack from top to bottom, the sleeve part enters jack, and the axial limiting step withstands the piano base up; B. wheel disc is screwed in from the bottom up in the internal thread hole of installing sleeve until screw, in this step, available Allen key inserts in the inner hexagonal hole and finishes installation, and is easy to operate, laborsaving again; After screwing, the lower end of installing sleeve is apart from 3 millimeters of the upper ends of the projection of wheel disc, thereby installing sleeve holds the main body of wheel disc substantially; C. at last vertical shaft is packed into from the bottom up in the vertical shaft hole of wheel disc, finish the installation of caster of piano.The piano leg is installed above the piano base, and piano leg lower end arranges and the axial limiting step shape cavity volume that caves in accordingly, and the axial limiting step is contained in the depression cavity volume.
The utility model adopts up and down screw fastening type structure, and installing sleeve holds the sleeve part substantially, and the profile simplicity generosity is particularly useful for transparent upright piano.
Above-described embodiment is the better embodiment of the utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (8)
1. the mounting structure of a caster of piano comprises caster of piano; Caster of piano comprises vertical shaft and the wheel disc that is enclosed within on the vertical shaft, and it is characterized in that: the mounting structure of caster of piano also comprises installing sleeve; Installing sleeve comprises the sleeve part and is positioned at the axial limiting step of upper end, sleeve part that wherein, the lower end of sleeve part is provided with internal thread hole; The piano base is provided with the jack that runs through, and installing sleeve inserts jack from top to bottom, and the axial limiting step withstands the piano base from the top; The outer wall of wheel disc is provided with outside thread, and wheel disc screws in the internal thread hole of installing sleeve from the bottom up.
2. according to the mounting structure of caster of piano claimed in claim 1, it is characterized in that: cooperating between described sleeve part and the jack is free-running fit.
3. according to the mounting structure of caster of piano claimed in claim 1, it is characterized in that: the outer wall of described sleeve part is cylindric, and the cross-sectional plane of axial limiting step is rectangle.
4. according to the mounting structure of caster of piano claimed in claim 1, it is characterized in that: the material of described installing sleeve is corrosion-resistant steel.
5. according to the mounting structure of caster of piano claimed in claim 1, it is characterized in that: described wheel disc is boss shape; After wheel disc screwed in installing sleeve, the distance between the lower end of installing sleeve and the projection of wheel disc was less than 5 millimeters.
6. according to the mounting structure of caster of piano claimed in claim 5, it is characterized in that: the lower end of described piano base is provided with the depression position of the projection that holds wheel disc.
7. according to the mounting structure of caster of piano claimed in claim 1, it is characterized in that: be provided with the vertical shaft hole that holds vertical shaft in the described wheel disc, the lower end in vertical shaft hole is provided with inner hexagonal hole; In the time of on being projected in horizontal surface, the vertical shaft hole is positioned at inner hexagonal hole or the vertical shaft hole is inscribed within inner hexagonal hole.
8. according to the mounting structure of caster of piano claimed in claim 1, it is characterized in that: the lower end of the outer wall of described sleeve part is provided with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319315 CN202669380U (en) | 2012-07-03 | 2012-07-03 | Mounting structure for piano trundle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319315 CN202669380U (en) | 2012-07-03 | 2012-07-03 | Mounting structure for piano trundle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202669380U true CN202669380U (en) | 2013-01-16 |
Family
ID=47490310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220319315 Expired - Lifetime CN202669380U (en) | 2012-07-03 | 2012-07-03 | Mounting structure for piano trundle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202669380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717661A (en) * | 2012-07-03 | 2012-10-10 | 广州珠江钢琴集团股份有限公司 | Mounting structure and mounting method of piano truckle |
-
2012
- 2012-07-03 CN CN 201220319315 patent/CN202669380U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717661A (en) * | 2012-07-03 | 2012-10-10 | 广州珠江钢琴集团股份有限公司 | Mounting structure and mounting method of piano truckle |
| CN102717661B (en) * | 2012-07-03 | 2015-09-30 | 广州珠江钢琴集团股份有限公司 | The mounting structure of caster of piano and installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |