CN211113159U

CN211113159U - Adjustable bridge anti-seismic support

Info

Publication number: CN211113159U
Application number: CN201921932239.7U
Authority: CN
Inventors: 蒲育; 范萍萍; 任永忠; 刘君
Original assignee: Lanzhou Institute of Technology
Current assignee: Lanzhou Institute of Technology
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-07-28
Anticipated expiration: 2029-11-11

Abstract

The utility model discloses an adjustable bridge anti-seismic support, which comprises a base and a support plate, wherein the middle part of the top end of the base is fixedly connected with a support cylinder, the inner cavity of the support cylinder is slidably connected with a guide sliding column mechanism, the bottom end of the guide sliding column mechanism is provided with a chute, the inner cavity top wall of the support cylinder is symmetrically hinged with a free bearing, the free bearing is hinged with a connecting rod, the top end of the connecting rod is fixedly connected with a pulley matched with the chute, the bottom end of the support plate is fixedly connected with a connecting seat, and the bottom end of the connecting seat is fixedly connected with; the utility model can realize the first damping in the vertical direction to the whole device through the mutual matching of the spring and the telescopic rod; through setting up first shock attenuation cover to cooperation sleeve and a supporting cylinder, can effectual improvement whole device the ascending shock attenuation of horizontal direction, can promote the ascending safety of whole device horizontal direction by a wide margin, finally realize promoting the shock attenuation effect of whole device, guarantee the safety of prefabricated bridge plate.

Description

Adjustable bridge anti-seismic support

Technical Field

The utility model belongs to the technical field of bridge anti-seismic support technique and specifically relates to an adjustable bridge anti-seismic support.

Background

The bridge is generally a structure which is erected on rivers, lakes and seas and allows vehicles, pedestrians and the like to smoothly pass through. In order to adapt to the modern high-speed developed traffic industry, bridges are also extended to be constructed to span mountain stream, unfavorable geology or meet other traffic needs, so that the buildings are convenient to pass. The bridge generally comprises an upper structure, a lower structure, a support and an auxiliary structure, wherein the upper structure is also called a bridge span structure and is a main structure for spanning obstacles; the lower structure comprises a bridge abutment, a bridge pier and a foundation; the support is a force transmission device arranged at the supporting positions of the bridge span structure and the bridge pier or the bridge abutment.

At present, the condition that the prefabricated bridge plate falls from the pier beam often appears in the earthquake, the reason that the bridge plate falls from the pier beam is that when the earthquake occurs, great horizontal force and vertical force are generated, the prefabricated bridge plate is enabled to generate horizontal displacement and vertical displacement, after the displacement exceeds the shelving width of the prefabricated bridge plate on the pier, the bridge plate falls, at the moment, not only is the bridge damaged, but also great safety accidents can appear on the bridge and under the bridge for pedestrians and vehicles.

Therefore, an adjustable bridge earthquake-resistant support is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an adjustable bridge antidetonation support to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an adjustable bridge anti-seismic support comprises a base and a support plate, wherein a support cylinder is fixedly connected to the middle of the top end of the base, the support cylinder is of a cylindrical structure with an open top end, a guide sliding column mechanism is slidably connected to the inner cavity of the support cylinder, a sliding groove is formed in the bottom end of the guide sliding column mechanism, hinged seats are symmetrically hinged to the top wall of the inner cavity of the support cylinder in a left-right mode, a connecting rod is hinged to each hinged seat, a pulley matched with the sliding groove is fixedly connected to the top end of the connecting rod, a connecting seat is fixedly connected to the bottom end of the support plate, a sleeve matched with the support cylinder is fixedly connected to the bottom end of the connecting seat, the sleeve is of a cylindrical structure with an open bottom end, the sleeve is sleeved on the outer side of the support cylinder, the axis of the sleeve coincides with the axis of the support cylinder, a first damping sleeve matched with, the top wall of the inner cavity of the sleeve is fixedly connected with a supporting frame matched with the supporting barrel, the supporting frame is of a U-shaped structure, a plurality of telescopic rods are uniformly arranged at the bottom end of the supporting frame, the bottom end of each telescopic rod is fixedly connected to the top end of the corresponding guide sliding column mechanism, springs matched with the corresponding guide sliding column mechanisms are sleeved on the outer sides of the telescopic rods, the end portions of the springs are fixedly connected to the supporting frame, and the springs and the telescopic rods are matched with each other, so that the whole device can be subjected to primary damping in the vertical direction; the guide sliding column mechanism is matched with the connecting rod and the pulley, so that secondary damping in the vertical direction of the whole device can be realized, the damping capacity of the whole device in the vertical direction can be effectively improved, and the safety of the whole device in the vertical direction can be greatly improved; through setting up first shock attenuation cover to cooperation sleeve and a supporting cylinder, can effectual improvement whole device the ascending shock attenuation of horizontal direction, can promote the ascending safety of whole device horizontal direction by a wide margin, finally realize promoting the shock attenuation effect of whole device, guarantee the safety of prefabricated bridge plate.

In a further embodiment, the top bilateral symmetry fixedly connected with stand of base, the looks butt upper portion fixedly connected with and sleeve matched with limiting plate of stand, the limiting plate is the arc, and the inner chamber of limiting plate is equipped with sleeve matched with shock pad, the shock pad is selected for use the rubber material preparation to form, through setting up the shock pad to cooperation sleeve and limiting plate can further promote the shock attenuation of whole device on the horizontal direction, thereby further improve the shock attenuation effect of whole device.

In a further embodiment, the guide sliding column mechanism comprises two stabilizing plates matched with the supporting cylinder, a plurality of stabilizing rods are uniformly arranged between the two stabilizing plates, the sliding groove is formed in the stabilizing plate at the bottom of the guide sliding column mechanism, the bottom end of the telescopic rod is fixedly connected to the stabilizing plate at the upper part of the guide sliding column mechanism, and the whole guide sliding column mechanism can be effectively improved in sliding stability in the supporting cylinder by matching the two stabilizing plates with the plurality of stabilizing rods, so that the stability of the whole device is ensured.

The stabilizer plate includes the base plate, stabilizer bar fixed connection is on the base plate, the outside cover of base plate is equipped with and supports a section of thick bamboo matched with second shock attenuation cover, through setting up second shock attenuation cover, can further promote the shock attenuation of whole device on the horizontal direction to further improve the shock attenuation effect of whole device.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model can realize the first damping in the vertical direction to the whole device through the mutual matching of the spring and the telescopic rod; the guide sliding column mechanism is matched with the connecting rod and the pulley, so that secondary damping in the vertical direction of the whole device can be realized, the damping capacity of the whole device in the vertical direction can be effectively improved, and the safety of the whole device in the vertical direction can be greatly improved; by arranging the first damping sleeve and matching with the sleeve and the supporting cylinder, the damping of the whole device in the horizontal direction can be effectively improved, the safety of the whole device in the horizontal direction can be greatly improved, the damping effect of the whole device is finally improved, and the safety of the prefabricated bridge plate is ensured;

2. the utility model can further improve the shock absorption of the whole device in the horizontal direction by arranging the shock pad and matching with the sleeve and the limiting plate, thereby further improving the shock absorption effect of the whole device;

3. the utility model can effectively improve the sliding stability of the whole guide sliding column mechanism in the supporting cylinder by matching the two stabilizing plates with the stabilizing rods, thereby ensuring the stability of the whole device;

4. the utility model discloses a set up the second shock attenuation cover, can further promote the shock attenuation of whole device on the horizontal direction to further improve the shock attenuation effect of whole device.

Drawings

FIG. 1 is a schematic structural view of a first embodiment of an adjustable seismic bridge support;

FIG. 2 is a schematic structural view of a second embodiment of an adjustable seismic bridge support;

fig. 3 is a schematic perspective view of a guide sliding column mechanism of an adjustable anti-seismic bridge support.

In the figure: 1-base, 2-supporting plate, 3-supporting cylinder, 4-guiding sliding column mechanism, 41-stabilizing plate, 411-base plate, 412-second damping sleeve, 42-stabilizing rod, 5-sliding chute, 6-connecting rod, 7-pulley, 8-hinged support, 9-connecting seat, 10-sleeve, 11-first damping sleeve, 12-supporting frame, 13-telescopic rod, 14-spring, 15-upright column, 16-limiting plate and 17-damping cushion.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1, an adjustable anti-seismic bridge support comprises a base 1 and a support plate 2, wherein a support cylinder 3 is fixedly connected to the middle of the top end of the base 1, the support cylinder 3 is of a cylindrical structure with an open top end, a guide sliding column mechanism 4 is slidably connected to the inner cavity of the support cylinder 3, a sliding chute 5 is arranged at the bottom end of the guide sliding column mechanism 4, hinged supports 8 are symmetrically hinged to the top wall of the inner cavity of the support cylinder 3 in the left-right direction, a connecting rod 6 is hinged to the hinged supports 8, a pulley 7 matched with the sliding chute 5 is fixedly connected to the top end of the connecting rod 6, a connecting seat 9 is fixedly connected to the bottom end of the support plate 2, a sleeve 10 matched with the support cylinder 3 is fixedly connected to the bottom end of the connecting seat 9, the sleeve 10 is of a cylindrical structure with an open bottom end, the sleeve 10 is sleeved on, a first damping sleeve 11 matched with the supporting cylinder 3 is sleeved in an inner cavity of the sleeve 10, the first damping sleeve 11 is made of rubber materials, a supporting frame 12 matched with the supporting cylinder 3 is fixedly connected to the top wall of the inner cavity of the sleeve 10, the supporting frame 12 is of a U-shaped structure, a plurality of telescopic rods 13 are uniformly arranged at the bottom end of the supporting frame 12, the bottom ends of the telescopic rods 13 are fixedly connected to the top end of the guide sliding column mechanism 4, springs 14 matched with the guide sliding column mechanism 4 are sleeved on the outer sides of the telescopic rods 13, the end portions of the springs 14 are fixedly connected to the supporting frame 12, and the whole device can be subjected to primary damping in the vertical direction through mutual matching of the springs 14 and the telescopic rods 13; the guide sliding column mechanism 4 is matched with the connecting rod 6 and the pulley 7, so that secondary damping in the vertical direction of the whole device can be realized, the damping capacity of the whole device in the vertical direction can be effectively improved, and the safety of the whole device in the vertical direction can be greatly improved; through setting up first shock attenuation cover 11 to cooperation sleeve 10 and a supporting cylinder 3, can effectual improvement whole device in the ascending shock attenuation of horizontal direction, can promote the ascending safety of whole device horizontal direction by a wide margin, finally realize promoting the shock attenuation effect of whole device, guarantee the safety of prefabricated bridge plate.

Example 2

Referring to fig. 2, the difference from example 1 is: the top bilateral symmetry fixedly connected with stand 15 of base 1, the looks proximal end upper portion fixedly connected with and sleeve 10 matched with limiting plate 16 of stand 15, limiting plate 16 is the arc, and limiting plate 16's inner chamber is equipped with sleeve 10 matched with shock pad 17, shock pad 17 chooses for use the rubber material preparation to form, through setting up shock pad 17 to cooperation sleeve 10 and limiting plate 16 can further promote the shock attenuation of whole device on the horizontal direction, thereby further improve the shock attenuation effect of whole device.

Example 3

Referring to fig. 3, the difference from example 1 is: guide sliding column mechanism 4 includes two and a support section of thick bamboo 3 matched with stabilizer plate 41, and even between two stabilizer plates 41 is equipped with a plurality of stabilizer bars 42, spout 5 sets up the stabilizer plate 41 in guide sliding column mechanism 4 bottom, the bottom fixed connection of telescopic link 13 is at the stabilizer plate 41 on guide sliding column mechanism 4 upper portion, through a plurality of stabilizer bars 42 of two stabilizer plate 41 cooperations, can effectually promote whole guide sliding column mechanism 4 gliding stability in a support section of thick bamboo 3 to guarantee the stability of whole device.

The stabilizing plate 41 comprises a base plate 411, the stabilizing rod 42 is fixedly connected to the base plate 411, a second damping sleeve 412 matched with the supporting cylinder 3 is sleeved on the outer side of the base plate 411, and damping of the whole device in the horizontal direction can be further improved by arranging the second damping sleeve 412, so that the damping effect of the whole device is further improved.

Working principle of examples 1 to 3: through the mutual matching of the spring 14 and the telescopic rod 13, the primary shock absorption of the whole device in the vertical direction can be realized; the guide sliding column mechanism 4 is matched with the connecting rod 6 and the pulley 7, so that secondary damping in the vertical direction of the whole device can be realized, the damping capacity of the whole device in the vertical direction can be effectively improved, and the safety of the whole device in the vertical direction can be greatly improved; the damping of the whole device in the horizontal direction can be effectively improved by arranging the first damping sleeve 11 and matching the sleeve 10 and the supporting cylinder 3; meanwhile, the shock absorption of the whole device in the horizontal direction can be further improved by arranging the shock absorption pad 17 and matching the sleeve 10 and the limiting plate 16; finally, the damping effect of the whole device is improved, and the safety of the prefabricated bridge plate is guaranteed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An adjustable bridge anti-seismic support comprises a base (1) and a support plate (2), and is characterized in that the middle of the top end of the base (1) is fixedly connected with a support cylinder (3), the support cylinder (3) is of a cylindrical structure with an open top end, an inner cavity of the support cylinder (3) is connected with a guide sliding column mechanism (4) in a sliding manner, a sliding chute (5) is arranged at the bottom end of the guide sliding column mechanism (4), hinged supports (8) are symmetrically hinged to the top wall of the inner cavity of the support cylinder (3) in a bilateral manner, a connecting rod (6) is hinged to each hinged support (8), a pulley (7) matched with the sliding chute (5) is fixedly connected to the top end of each connecting rod (6), a connecting seat (9) is fixedly connected to the bottom end of the support plate (2), a sleeve (10) matched with the support cylinder (3) is fixedly connected to the bottom end of each connecting seat (9, the outside at a support section of thick bamboo (3) is established to sleeve (10) cover, and the inner chamber endotheca of sleeve (10) is equipped with and supports a section of thick bamboo (3) matched with first shock attenuation cover (11), first shock attenuation cover (11) select for use the rubber material preparation to form, the inner chamber roof fixedly connected with of sleeve (10) and support section of thick bamboo (3) matched with support frame (12), support frame (12) are U type structure, and the bottom of support frame (12) is even is equipped with a plurality of telescopic links (13), the bottom fixed connection of telescopic link (13) is on the top of direction traveller mechanism (4), and the outside cover of telescopic link (13) is equipped with and leads traveller mechanism (4) matched with spring (14), the tip fixed connection of spring (14) is on support frame (12).

2. An adjustable seismic bridge support according to claim 1, wherein the axis of said sleeve (10) coincides with the axis of the support cylinder (3).

3. An adjustable bridge earthquake-proof support according to claim 1, characterized in that the top end of the base (1) is fixedly connected with upright columns (15) in bilateral symmetry, the upper parts of the adjacent ends of the upright columns (15) are fixedly connected with limit plates (16) matched with the sleeves (10), and the inner cavities of the limit plates (16) are provided with shock-absorbing pads (17) matched with the sleeves (10).

4. An adjustable seismic bridge support according to claim 3, wherein said limiting plates (16) are curved plates.

5. An adjustable anti-seismic bridge support according to claim 3, wherein said shock pad (17) is made of rubber.

6. An adjustable anti-seismic bridge bearing according to any one of claims 1 to 5, wherein the guide sliding column mechanism (4) comprises two stabilizing plates (41) matched with the support cylinder (3), a plurality of stabilizing bars (42) are uniformly arranged between the two stabilizing plates (41), the sliding chute (5) is arranged on the stabilizing plate (41) at the bottom of the guide sliding column mechanism (4), and the bottom end of the telescopic rod (13) is fixedly connected to the stabilizing plate (41) at the upper part of the guide sliding column mechanism (4).

7. An adjustable anti-seismic bridge bearing according to claim 6, wherein said stabilizer plate (41) comprises a base plate (411), said stabilizer bar (42) is fixedly connected to said base plate (411), and a second shock-absorbing sleeve (412) matched with said supporting cylinder (3) is sleeved outside said base plate (411).