CN2380604Y

CN2380604Y - Undirectional moving plate type rubber supporting seat

Info

Publication number: CN2380604Y
Application number: CN 99226597
Authority: CN
Inventors: 袁关生
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-05-10
Filing date: 1999-05-10
Publication date: 2000-05-31
Anticipated expiration: 2009-05-10

Abstract

The utility model discloses a one-way moving basin type rubber supporting seat, which comprises an upper steel plate, a middle steel plate, a rubber block, a polytetrafluoroethylene plate, a sealing ring, a bottom basin, etc., wherein, the rubber block is arranged in the bottom basin; the middle steel plate is arranged on the rubber block; the upper steel plate is arranged on the middle steel plate; clamping slots and clamping heads capable of mutually clamping and sliding are arranged on the lower surface of the upper steel plate and the upper end face of the bottom basin; two stopping blocks are respectively arranged on the two heads arranged in the clamping slots. The utility model not only has the advantage of simple structure that the upper steel plate can horizontally move in a one-way mode and can not slide away from the supporting seat on the seat body of the supporting seat, but also has the advantage of strong shake-proof performance (particular strong earthquake-proof performance), and furthermore, the utility model is suitable for bridge constructions of highways, railways, etc.

Description

Unidirectional movable pot rubber bearing

The utility model relates to the bearing that a kind of road and bridge is built usefulness, especially a kind of pot rubber bearing.

At present, in the bridge construction of highway, railway etc., generally used pot rubber bearing, its structure generally comprises upper steel plate, middle steel plate, block rubber, polyfluortetraethylene plate, sealing ring, end basin etc.It utilizes the Incoercibility and the high damping properties of block rubber, has alleviated bridge superstructure and dynamic load and has impacted the top counter-force that is produced, and has improved the resistance to compression and the antidetonation shock-absorbing capacity of whole bridge to a certain extent.For upper steel plate can be moved in the horizontal direction when stressed, generally all on bearing bottom surface and pre-buried installation seat surface, offer corresponding chute and bayonet socket at present, toilet can move installing on the seat surface, is fixed on that the upper steel plate on the basin moves slightly at the bottom of the bearing thereby drive when stressed.But complex structure so not only, whole bearing must move with upper steel plate, and bayonet socket easily broken in the chute port, and application life is shorter, thereby easily makes bearing and bridge impaired; Though the bearing upper steel plate that also has can move relative to the bearing pedestal by polyfluortetraethylene plate, does not have the displacement controlling organization, easily make the upper steel plate bearing that slips away.In addition, the bottom surface of (or be welded on its soffit corrosion resistant plate) and the upper surface of middle steel plate all are planar shaped because upper steel plate, be plane contact between the two, so when it is subjected to multi-direction vibrations, upper steel plate just can not produce corresponding inclination thereupon and move, easily like this make bridge impaired, the anti-multi-direction vibrations of bridge (especially earthquake) poor-performing, application life is shorter relatively.

The purpose of this utility model be to provide a kind of simple in structure, upper steel plate can be on the bearing pedestal horizontal single-headed move but the bearing that can not slip away, the stronger pot rubber bearing of anti-seismic performance (especially earthquake resisting performance).

For achieving the above object, unidirectional movable pot rubber bearing of the present utility model comprises upper steel plate, middle steel plate, block rubber, polyfluortetraethylene plate, sealing ring, end basin etc., block rubber is positioned at the bottom at basin intermediate recess place, the end, middle steel plate is in the recess in the middle of the end basin, above the block rubber, sealing ring then is installed in above the block rubber, the outside of middle steel plate bottom, upper steel plate is positioned at above the middle steel plate, the polyfluortetraethylene plate lining is between upper steel plate and middle steel plate, be provided with the draw-in groove and the dop that can engage slip mutually on the upper surface of the soffit of upper steel plate and end basin, respectively there is a scotch at the two in described draw-in groove.

Above-mentioned unidirectional movable pot rubber bearing also has a sphere steel plate between upper steel plate and middle steel plate, the upper surface of this sphere steel plate is a plane, and its soffit is dome shape, the also corresponding dome shape that is of the upper surface of middle steel plate.Between the soffit of the upper surface of middle steel plate and sphere steel plate, respectively serve as a contrast a polyfluortetraethylene plate between the soffit of the upper surface of sphere steel plate and upper steel plate.Gapped between the upper and lower after draw-in groove and the dop engaging.

Owing to adopted technique scheme; make bearing plate with upper steel plate; by middle steel plate with the bearing capacity on top with rock shaking force and concentrate and pass to block rubber; block rubber is all bearing capacities absorptions and utilize its high damping properties; reliably the top bearing capacity is eliminated in a large number; guarantee that it has good shock-absorbing capacity; and when counter-force occurring; produce cushion effect; this counter-force is passed to pier reliably; pier and superstructure are well protected, reduced because the counter-force effect causes the bearing failure to pier.After having adopted dop and draw-in groove structure,, upper steel plate relative bearing body when stressed is horizontally vertically moved, and bearing body itself does not move by the slip of dop in draw-in groove.It moves and can be subjected to scotch control to make its bearing that can not slip away, and protects it not to be damaged.Because dop is stuck in the draw-in groove, can not make upper steel plate be pulled away from bearing simultaneously, improve its pull resistance.After adopting the sphere steel plate, just can utilize the multidirectional rotary principle of sphere garden arc, be subjected on top that multidirectional random vibration is particularly caused during earthquake to be rocked or swing, when bridge expands with heat and contract with cold during caused displacement, because dop and draw-in groove are gapped between the upper and lower, it can be rotated in draw-in groove slightly, upper steel plate just can be done multidirectional inclination with respect to middle steel plate and end basin and rocks along with the sphere steel plate like this, the sphere of sphere steel plate and the friction factor between polyfluortetraethylene plate very little (≤0.04), thereby it can be carried out freely when rocking, guarantee that it has rotating property flexibly, thereby can bear the tension and compression shearing, avoid bridge to suffer damage, the special high shake area that adapts to.So after employing the utility model structure, bridge just can not be often impaired, will be greatly improved its application life.

Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail.

Fig. 1 is a vertical structure sectional view of the present utility model;

Fig. 2 is the vertical view of end basin among Fig. 1;

Fig. 3 is the structural representation of upper steel plate among Fig. 1.

As shown in the figure, unidirectional movable pot rubber bearing of the present utility model comprises upper steel plate 1, middle steel plate 2, block rubber 3, polyfluortetraethylene plate 4, sealing ring 5, end basin 6 etc., block rubber 3 is positioned at the bottom at end basin 6 intermediate recess places, in the recess of middle steel plate 2 in the middle of end basin 6, above the block rubber 3,5 of sealing rings are installed in above the block rubber 3, the outside of middle steel plate 2 bottoms, and block rubber 3 is sealed.Upper steel plate 1 is positioned at above the middle steel plate 2, fixing welding one corrosion resistant plate 7 below it, after being bent downwardly, two outers of upper steel plate 1 bend inwards again, form a draw-in groove 8, the side, two ends of end basin 6 then hollows out, its upper end evagination is done in the draw-in groove 8 that dop 9 is stuck in upper steel plate 1, and respectively there is a scotch 10 at the two in draw-in groove 8.For bearing upper steel plate 1 can be tilted when being subjected to multidirectional vibrations, also have a sphere steel plate 11 at upper steel plate 1 and 2 of middle steel plates, the upper surface of this sphere steel plate 11 is a plane, its soffit is dome shape, the also corresponding dome shape that is of the upper surface of middle steel plate 2.Between the soffit of the upper surface of middle steel plate 2 and sphere steel plate 11, respectively serve as a contrast a polyfluortetraethylene plate 4 between the soffit of the upper surface of sphere steel plate 11 and corrosion resistant plate 7.Among the figure, the polyfluortetraethylene plate of being fixed on corrosion resistant plate of fixing on the inner bottom surface of draw-in groove 8 12 and dop 8 outside end faces 4 is to set up for the horizontal slip performance that increases upper steel plate.Surface at above-mentioned polyfluortetraethylene plate 4 all scribbles one deck silicone grease, to increase the lubricity of contact surface.

In the utility model, also dop can be located on the upper steel plate and draw-in groove is located on the end basin, perhaps draw-in groove and dop also can adopt other shape and structure, as can directly offering a draw-in groove at the place, outer of basin upper surface, the end, soffit at upper steel plate then is provided with elastic chuck, dop can slide along draw-in groove after sticking into draw-in groove like this, and upper steel plate also is difficult for being drawn out.

Claims

1, unidirectional movable pot rubber bearing, comprise upper steel plate, middle steel plate, block rubber, polyfluortetraethylene plate, sealing ring, end basin etc., block rubber is positioned at the bottom at basin intermediate recess place, the end, middle steel plate is in the recess in the middle of the end basin, above the block rubber, sealing ring then is installed in above the block rubber, the outside of middle steel plate bottom, upper steel plate is positioned at above the middle steel plate, the polyfluortetraethylene plate lining is between upper steel plate and middle steel plate, it is characterized in that, be provided with the draw-in groove and the dop that can engage slip mutually on the upper surface of the soffit of described upper steel plate and end basin, respectively there is a scotch at the two in described draw-in groove.

2, unidirectional movable pot rubber bearing as claimed in claim 1 is characterized in that, bends inwards after two outers of described upper steel plate are bent downwardly again, and forms described draw-in groove, and the side, two ends of basin of the described end then hollows out, and evagination is as described dop above it.

3, unidirectional movable pot rubber bearing as claimed in claim 1 or 2 is characterized in that, fixes a corrosion resistant plate on the inner bottom surface of described draw-in groove, then fixes a polyfluortetraethylene plate on the end face of the outside of described dop.

4, unidirectional movable pot rubber bearing as claimed in claim 1 or 2, it is characterized in that, between described upper steel plate and middle steel plate, also has a sphere steel plate, the upper surface of this sphere steel plate is a plane, its soffit is dome shape, the also corresponding dome shape that is of the upper surface of described middle steel plate, between the soffit of the upper surface of described middle steel plate and sphere steel plate, respectively serve as a contrast a polyfluortetraethylene plate between the soffit of the upper surface of described sphere steel plate and upper steel plate, gapped between the upper and lower after described draw-in groove and the dop engaging.