CN2299539Y - Structure for fixing adjusting spindle of chair for musical instruments player - Google Patents

Abstract

The utility model relates to a fixing structure of an adjusting spindle of a musical instrument chair, which comprises a center rod and a connector. The centre provides a position for an adjusting screw rod to penetrate and extend; a fixed wall piece is convexly and axially arranged at the top side edge of the connector which is also matched with another corresponding movable wall piece. The centre of the two wall pieces are provided with a half arc concave and screw rods and screw threads are arranged on the surface. By the connection with the adjusting screw rod, the two wall pieces are provided with fixing holes for a fixing bolt and a screwing and adjusting bolt to penetrate and lock; by the control of the two wall pieces to press or loosen the adjusting screw rod; by a C-type buckle of a screwing sleeve on the upper part of the adjusting screw rod corresponding to the fixing wall piece and the movable wall piece to press the adjusting screw rod again.

Description

The musical instrument seat is adjusted axle fixing structure

The utility model relates to the musical instrument seat, refers to the fixed structure of musical instrument seat adjustment axle especially.

Musical instrument seat (by shown in Figure 1) commonly used, mainly comprise a mounting 10, this mounting 10 has the center-pole 11 of a hollow, cover one connector 12 is compeled on the top of this center-pole 11, and the nearly top inner edge surface of this connector 12 has screw thread, and the outer edge surface of its nearly bottom is convexly equipped with corresponding brace 121 in the precalculated position at interval, this brace 121 connects establishes several chair pin 122, and for this chair pin 122 can be expanded or fold, so between chair pin 122 and center-pole 11, be connected with several movable Zhe arms 13.

The top internal thread of connector 12 screw rod 14 that is used to be spirally connected, the then affixed seat 15 in the top of this screw rod 14 so that this seat 15 can mat screw rods 14 and the cooperating of connector 12, is adjusted purpose just and reach rotation.But in order to reach the height of fixed seat 15 after the adjustment, so join a retainer ring 16 (by shown in Figure 2) in overlapping between the top of connector 12 and the screw rod 14, this retainer ring 16 is to be hollow annular, intersegmental part is to be a undergauge section on it, and establishing screw thread in it makes with screw rod 14 and is spirally connected, the following intersegmental part of retainer ring 16 then is an extension diameter section, so that cover is assigned in the top of connector 12, and it is urgent in the edge face of connector 12 with a packing screw that radially wears 161, and then fixing retainer ring 16, and with retainer ring 16 standing screws 14.

But retainer ring 16 commonly used have assembling inconvenience, can't secure etc. shortcoming.Its reason is that the top because of screw rod 14 is for setting firmly seat 15, so its head end is the diameter syndeton big than screw rod 14, and if retainer ring 16 is need be mounted on the screw rod 14 time, be bound in screw rod 14 not the spiral shell group before connector 12, from bottom to top revolve earlier spiral shell retainer ring 16, to the precalculated position, again with screw rod 14 spiral shell groups in connector 12, the cover of two-part is joined to be spirally connected and will be formed that built-up time prolongs and the shortcoming of assembling inconvenience like this.

Again again, the hypomere portion inner edge surface of retainer ring 16 is to be assigned in connector 12 for the even surface cover, again with the outer edge surface of packing screw 161 urgent connectors 12, so as easy as rolling off a log wearing and tearing that cause connector 12, and when seat 15 reverses energetically as if careless round, retainer ring 16 takes place again easily driven by screw rod 14, and lose its fastening effect, and then height that can't fixed seat 15, cause sizable inconvenience.

And the shortcoming that another tunes promptly is, when pine oil packing screw 161 tunes retainer ring 16, usually need on the other hand fixedly retainer ring 16, another hand-screw is transferred screw rod 14, otherwise as easy as rolling off a log generation retainer ring 16 and then screw rod 14 rotates and the situation of displacement, and must retainer ring 16 be tuned back original both allocations after screw rod 14 tunes true position is to be the one trouble again, and another trouble then is when retainer ring 16 positions change, cause the visual error of adjusting height of the person of tuning easily, cause adjustment improper.

In order to overcome above-mentioned shortcoming, the purpose of this utility model provides a kind of musical instrument seat and adjusts axle fixing structure, function easily assembled, easy to adjust, strong fix that this structure has.

The utility model is achieved in that a kind of musical instrument seat adjustment axle fixing structure, comprises the center-pole of a musical instrument seat, and cover one connector is compeled on the top of this center-pole, and its central authorities stretch through for an adjustment screw rod, and the top of this adjustment screw rod connects establishes a chair cushion.The outer edge surface of the nearly bottom of connector gives allocation at interval and is convexly equipped with corresponding brace, and this brace connects establishes several chair pin.The top side half edge over glaze of connector is to being convexly equipped with a fixation wall sheet, other cooperates the removable wall sheet of a corresponding size, shape, thickness, all half arc of tool is recessed in these two walls sheet central authorities, the surface car has screw flight, make and adjust screw rod and cooperate, this two walls sheet is the tool fixing hole in addition, can tune bolt for a set bolt and and wear lock, and it is urgent or loose from adjusting screw rod to use control two wall sheets.

In addition, but adjust screw rod with respect to fixation wall sheet and removable wall sheet above also rotation set one C type buckle, this C type is buckled the root edge face and is convexly equipped with a positioning block, be positioned in the opening groove that the outside top central authorities of fixation wall sheet are provided with, the C type is buckled by a bolt and is controlled its degree of tightness, and mat C type is buckled packing once again and adjusted screw rod.

From the above, the utility model musical instrument seat is adjusted axle fixing structure, not only has advantage easily assembled and easy to adjust, but and the mutual packing of the adjustment screw rod mat fixation wall sheet of seat and removable wall sheet and obtain good fixed effect, make the adjustment screw rod be limited by a fastening strength, no matter happy person swaying when playing an instrument, vibrations, even repetitiousness rotates, neither can the influence adjusted screw rod, adjust the sound that undesired friction or collision also can not take place with arbitrary packing member screw rod, provide happy person one firm, do not rock, do not slide arbitrarily or change seat highly, help happy person to improve performance level.

Following drawings and Examples will help further to illustrate structure of the present utility model.

Fig. 1 is the stereogram of musical instrument seat commonly used.

Fig. 2 is the assembled sectional view of retainer ring among Fig. 1, screw rod, connector.

Fig. 3 is a three-dimensional exploded view of the present utility model.

Fig. 4 is a three-dimensional combination figure of the present utility model.

Fig. 5 is the cross section cutaway view of Fig. 4.

Fig. 6 is the other end stereogram of the utility model removable wall sheet.

By Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6, the utility model comprises the center-pole 20 of a musical instrument seat, and cover one connector 21 is compeled on the top of this center-pole 20, and its central authorities adjust screw rod 22 for one and stretch through, and the top of this adjustment screw rod 22 connects establishes a chair cushion (not drawing among the figure).The outer edge surface of connector 21 nearly bottoms is convexly equipped with corresponding brace 211 in the precalculated position at interval, and brace 211 connects establishes several chair pin 212.

The top side half edge over glaze of connector 21 is to being convexly equipped with a fixation wall sheet 30, and the centre bore 214 of the central corresponding connector 21 of this fixation wall sheet 30 is that half arc is recessed 31, and these half arc recessed 31 surperficial cars have screw flight.The dual-side of fixation wall sheet 30 adjacent half arcs recessed 31 is established a fixing hole 32 respectively, and this fixing hole 32 is a counter sink.The outside top central authorities of fixation wall sheet 30 are provided with an opening groove 33.

One removable wall sheet 40 is the lamellar bodies that are corresponding size, shape, thickness with fixation wall sheet 30, and it is recessed 41 that the central authorities of this removable wall sheet 40 also have half arc, and the surperficial car of this half arc recessed 41 has screw flight.A fixing hole 42 is respectively established in the position of the fixing hole 32 of the corresponding fixation wall sheet 30 of its dual-side.

Adjusting screw rod 22 is placed through in the centre bore 214 of connector 21 in advance, and the screw flight with half arc recessed 31 and surface thereof cooperates with the edge face of adjusting screw rod 22, this adjustment screw rod 22 can be tuned up and down, half arc recessed 41 with removable wall sheet 40 is incorporated into adjustment screw rod 22, with the corresponding position of this fixation wall sheet 30, wear and screw a set bolt 50 and respectively at the counter sink 32 of correspondence and fixing hole 42 and tune bolt 51.Fixation wall sheet 30 and removable wall sheet 40 are closed to compeling relatively, adjust screw rod 22, make and adjust screw rod 22 location with half arc recessed 31,41 and screw flight packing.

But adjust screw rod 22 with respect to fixation wall sheet 30 and removable wall sheet 40 above also rotation set one C type buckle 60, it is even surface that this C type is buckled 60 body inner edge, its top, root edge face respectively are convexly equipped with a positioning block 61, root edge face locating piece 61 promptly is positioned in the opening groove 33 of fixation wall sheet 30, the C type is buckled 60 corresponding open wall extensions 62 can wear lock for a bolt 63, use degree of tightness C type and buckle 60, and mat C type is buckled 60 packings adjustment screw rod 22, make adjustment screw rod 22 after fixing, promptly be not easy to trackslip arbitrarily, can definitely keep adjusting both take the altitudes of screw rod 22 because of moving of chair cushion or seat person.

If will tune the height of chair cushion again the time, but pine oil C type buckle 60 and pine transfer and tune bolt 51, removable wall sheet 40 is removed and the packing state of adjusting screw rod 22, can tune and adjust screw rod 22.And after being adjusted to the precalculated position, tight again lock tunes bolt 51 and the C type buckles 60, and screw rod 22 is adjusted in urgent location.

The above-mentioned structure of mat, one is become on the fixation wall sheet 30 and the top of connector 21, the inner edge of connector 21 promptly needn't be processed other car and establish screw flight, and the screw flight on recessed 31 surfaces of half arc of mat fixation wall sheet 30, adjustment screw rod 22 can be imported in the connector 21 when wearing assembling smoothly, and suitable system position effect is provided.In the process of assembling removable wall sheet 40, adjust screw rod 22 and still can keep both allocations, and not down slippage.But the adjustment screw rod 22 mat fixation wall sheets 30 of location and the mutual packing of removable wall sheet 40 and obtain good fixed effect, mat C type is buckled 60 the location of packing once again again, make adjustment screw rod 22 be limited by a fastening strength again, no matter happy person is swaying, vibrations when playing an instrument, even cover rotation, neither can the influence adjusted screw rod 22, adjust the sound that undesired friction or collision also can not take place with arbitrary packing member screw rod 22, provide happy person one firmly, do not rock, do not slide arbitrarily or change the seat of height, help happy person to improve performance level.

Claims (2)

1, a kind of musical instrument seat is adjusted axle fixing structure, the center-pole (20) that comprises a musical instrument seat, cover one connector (21) is compeled on the top of this center-pole (20), its central authorities adjust screw rod (22) for one and stretch through, the top of this adjustment screw rod (22) connects establishes a chair cushion, the outer edge surface of the nearly bottom of connector (21) gives allocation at interval and is convexly equipped with corresponding brace (211), and this brace (211) connects establishes several chair pin (212), it is characterized in that:

At the top side half edge over glaze of connector (21) to being convexly equipped with a fixation wall sheet (30), the centre bore (214) of the central corresponding connector (21) of this fixation wall sheet (30) is half arc recessed (31), the surperficial car of this half arc recessed (31) has screw flight, makes and adjust the threaded engagement of screw rod (22); The dual-side of adjacent this half arc of fixation wall sheet (30) recessed (31) is established a fixing hole (32) respectively;

One removable wall sheet (40), it is the lamellar body that is corresponding size, shape, thickness with fixation wall sheet (30), the central authorities of this removable wall sheet (40) also have half arc recessed (41), the surperficial car of this half arc recessed (41) has screw flight, with the threaded engagement of adjusting screw rod (22), its dual-side is also respectively established a fixing hole (42) with respect to fixing hole (32) position of fixation wall sheet (30); Tune bolt (51) with a set bolt (50) and respectively and wear in the fixing hole (32) (42) that locks in this fixation wall sheet (30) and removable wall sheet (40) correspondence, use and adjust removable wall sheet (40) packing, pine from adjusting screw rod (22).

2, adjust axle fixing structure by the described a kind of musical instrument seat of claim 1, the outside top central authorities that it is characterized in that described fixation wall sheet (30) are provided with an opening groove (33), adjust screw rod (22) and buckle (60) with respect to the top rotation set one C type of fixation wall sheet (30) and removable wall sheet (40), this C type is buckled (60) root edge face and is convexly equipped with a positioning block (61), be positioned in the opening groove (33), the C type is buckled (60) and is controlled its degree of tightness by a bolt (63), and mat C type is buckled (60) packing once again and adjusted screw rod (22).

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