Three-dimensional vibration isolation support applied to trestle in mountainous area

Abstract

The utility model provides a three-dimensional vibration isolation support applied to a trestle in a mountainous area, belongs to the technical field of bridge construction, and solves the problem that the horizontal vibration isolation performance of the vibration isolation support is affected due to the fact that a reset rubber shearing unit is quickly aged in the prior art. The device comprises an upper support and a lower support, the upper support comprises an upper connecting plate and an outer cylinder connected to the lower surface of the upper connecting plate, the lower support comprises a lower connecting plate and an inner cylinder connected to the upper surface of the lower connecting plate, the inner cylinder is located on the inner side of the outer cylinder, a plurality of U-shaped dampers are arranged between the inner cylinder and the outer cylinder, and a guide column is installed on the lower connecting plate. The guide column is movably sleeved with a transmission piece abutting against the upper connecting plate, and an elastic piece used for keeping the transmission piece abutting against the upper connecting plate is arranged between the transmission piece and the lower connecting plate. The elastic piece can weaken vertical vibration, the U-shaped damper can weaken horizontal vibration, the U-shaped damper replaces a reset rubber shearing unit, the service life can be greatly prolonged, and the vibration isolation performance of the vibration isolation support is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of bridge construction, specifically belongs to three -dimensional vibration isolation support applied to mountain trestle. BACKGROUND

[0002] The mountain trestle is a special bridge constructed in a mountainous environment, which is mainly used for crossing mountain streams, gorges or other adverse geological conditions to provide a convenient passage for pedestrians or specific vehicles.

[0003] In order to suppress structural vibration and weaken its vertical vibration, and improve the seismic performance of the mountain trestle, a vibration isolation support is arranged at the connecting part between the support column and the bridge deck. The existing vibration isolation support, such as the three-dimensional vibration isolation support with self-resetting function disclosed in the patent with publication number CN107190638A, comprises: an upper support plate, a vertical movement guide plate connected with the upper support plate, and an upper anti-instability convex body connected to the lower surface of the upper support plate, a lower support plate and a stainless steel plate bonded to the upper surface of the lower support plate, a horizontal sliding block embedded with a planar sliding plate, the upper surface of the horizontal sliding block is connected with a lower anti-instability convex body, a spiral spring clamped between the upper anti-instability convex body and the lower anti-instability convex body, and a reset rubber shear unit fixedly connected between the horizontal force transmission plate and the lower support plate. Compared with the prior art, the present application considers the characteristics of the rubber vibration isolation support according to the friction sliding vibration isolation technology and the vertical vibration isolation technology, and realizes the isolation and energy consumption of the earthquake and environmental vibration. In the patent, the reset rubber shear unit is used to consume the energy of the horizontal vibration of the vibration isolation support. In the complex environmental conditions of the mountainous area, the reset rubber shear unit will quickly age, thereby reducing the elasticity of the reset rubber shear unit and affecting the horizontal vibration isolation performance of the vibration isolation support. UTILITY MODEL CONTENTS

[0004] In view of the above problems, the utility model aims to provide a three-dimensional vibration isolation support applied to mountain trestle, which sets up elastic members to weaken the vertical vibration, and a U-shaped damper to weaken the horizontal vibration, the U-shaped damper replaces the reset rubber shear unit in the prior art, which can greatly prolong the service life and ensure the vibration isolation performance of the vibration isolation support.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] The utility model provides a three -dimensional vibration isolation support for mountainous trestle, including upper support and lower support, the upper support includes upper connecting plate and the outer tube connected in upper connecting plate lower surface, and the lower support includes lower connecting plate and the inner tube connected in lower connecting plate upper surface, and the inner tube is located in the inner side of the outer tube, and a plurality of U -shaped dampers are arranged between the inner tube and the outer tube along the circumference of the inner tube, and the lower connecting plate is installed with the guide column, and the guide column is movably sleeved with the transmission part abutting with the upper connecting plate, and the transmission part and the lower connecting plate are provided with the elastic element for keeping the transmission part and the upper connecting plate abut.

[0007] Preferably, the U-shaped dampers are provided with limiting blocks on both sides, the outer tube is vertically provided with a first limiting groove, the inner tube is vertically provided with a second limiting groove opposite to the first limiting groove, and the two limiting blocks are respectively slidably arranged in the first limiting groove and the second limiting groove.

[0008] Preferably, the lower connecting plate is fixedly provided with a damping seat, the damping seat is provided with a damping groove, a vertical plate is movably and sealingly arranged in the damping groove, and the upper end surface of the vertical plate is fixedly provided with a rubber block fixedly connected with the upper connecting plate.

[0009] Preferably, the damping groove is provided with damping liquid.

[0010] Preferably, the elastic element is a spring, and the spring is sleeved on the guide column.

[0011] Preferably, the transmission part comprises a mounting plate, the mounting plate is provided with a guide hole matched with the guide column, and the upper surface of the mounting plate is provided with a separation ring abutting with the upper connecting plate.

[0012] Preferably, the upper connecting plate is provided with a first mounting hole, and the lower connecting plate is provided with a second mounting hole.

[0013] As described above, the utility model has the advantages that:

[0014] The elastic element can weaken the vertical vibration, the U-shaped dampers weaken the horizontal vibration, the U-shaped dampers replace the reset rubber shear unit in the prior art, the service life is greatly prolonged, and the vibration isolation performance of the vibration isolation support is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as the limitation to the scope, and for the ordinary skilled in the art, other related drawings can also be obtained according to these drawings without the creative labor.

[0016] Figure 1The utility model provides an explosion structure schematic view for the embodiment of the utility model.

[0017] Figure 2 The utility model provides a three -dimensional structure schematic view for the embodiment of the utility model.

[0018] Figure 3 The utility model provides a structure schematic view of omitting upper connecting plate for the embodiment of the utility model.

[0019] Figure 4 The utility model provides a vertical board and damping seat cooperation schematic view for the embodiment of the utility model.

[0020] Figure 5 The utility model provides a guide column and elastic piece cooperation schematic view for the embodiment of the utility model.

[0021] Figure 6 The utility model provides a U-shaped damper structure schematic view for the embodiment of the utility model.

[0022] Reference Signs: 1 - upper support;101 - upper connecting plate;102 - outer cylinder;103 - first limit slot;104 - first mounting hole;2 - rubber block;3 - vertical board;4 - U-shaped damper;401 - limit block;5 - lower support;501 - lower connecting plate;502 - inner cylinder;503 - second mounting hole;504 - second limit slot;6 - guide column;7 - elastic piece;8 - transmission part;801 - mounting plate;802 - guide hole;803 - partition ring;9 - damping seat. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantage of the embodiment of the utility model more clear, the technical scheme in the embodiment of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiment of the utility model, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. The components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiment in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the protection of the utility model.

[0025] In the description of the utility model, it needs to explain, if the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relationship is based on the orientation or position relationship shown in the drawing, or is the orientation or position relationship of the product of the application in use, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0026] The following will be combined Figures 1-6 The utility model is described in detail.

[0027] Embodiment

[0028] A three-dimensional vibration isolation support applied to a trestle in mountainous areas, including upper support 1 and lower support 5, upper support 1 includes upper connecting plate 101 and the outer cylinder 102 connected to the lower surface of upper connecting plate 101, lower support 5 includes lower connecting plate 501 and the inner cylinder 502 connected to the upper surface of lower connecting plate 501, the inner cylinder 502 is located in the inner side of outer cylinder 102, a plurality of U-shaped dampers 4 are arranged between the inner cylinder 502 and the outer cylinder 102 along the circumference of the inner cylinder 502, a guide column 6 is installed on the lower connecting plate 501, a transmission part 8 abutting against the upper connecting plate 101 is movably sleeved on the guide column 6, and an elastic element 7 for keeping the transmission part 8 abutting against the upper connecting plate 101 is arranged between the transmission part 8 and the lower connecting plate 501.

[0029] Upper support 1 is connected with the bridge deck, and lower support 5 is connected with the support column; when the vibration isolation support vertically vibrates, upper support 1 presses elastic element 7 through transmission part 8, and absorbs vertical vibration through elastic element 7; when the vibration isolation support horizontally vibrates, the inner cylinder 502 and the outer cylinder 102 are extruded, the U-shaped dampers 4 can automatically restore the original shape after being deformed under pressure due to the elasticity of the U-shaped dampers 4, and the U-shaped dampers 4 absorb horizontal vibration through deformation. Compared with the reset rubber shear unit in the prior art, the U-shaped dampers 4 can greatly prolong the service life and ensure the vibration isolation performance of the vibration isolation support. The guide column 6 can ensure the vertical movement of the transmission part 8; the U-shaped dampers 4 are provided at least four.

[0030] Two sides of the U-shaped damper 4 are provided with limit blocks 401, the outer cylinder 102 is vertically provided with a first limit slot 103, the inner cylinder 502 is vertically provided with a second limit slot 504 which is oppositely arranged with the first limit slot 103, and the two limit blocks 401 are respectively and slidingly arranged in the first limit slot 103 and the second limit slot 504. The limit blocks 401 cooperate with the first limit slot 103 and the second limit slot 504 to limit the U-shaped damper 4, so as to ensure that the U-shaped damper 4 does not deflect to separate from the inner cylinder 502 and the outer cylinder 102 after being extruded by the inner cylinder 502 and the outer cylinder 102, and the U-shaped damper 4 can also vertically displace during vertical vibration, so as to avoid affecting the damping effect of the elastic member 7.

[0031] The damping seat 9 is fixedly arranged on the lower connecting plate 501, the damping seat 9 is provided with a damping slot, the vertical plate 3 is movably and sealingly arranged in the damping slot, and the upper end surface of the vertical plate 3 is fixedly provided with the rubber block 2 which is fixedly connected with the upper connecting plate 101. The vertical plate 3 can move with the up-down movement of the lower connecting plate 501, so as to rub and consume energy with the damping slot in the damping seat 9; further, the damping slot is provided with damping liquid, the vertical plate 3 rubs and consumes energy with the damping liquid, so as to reduce the abrasion between the damping seat 9 and the vertical plate 3. The rubber block 2 can cooperate with the U-shaped damper 4 to horizontally consume energy and damp, and the rubber block 2 connects the vertical plate 3 and the upper connecting plate 101 together, so that the vertical plate 3 can synchronously move with the upper connecting plate 101, so as to reciprocatingly move and rub with the damping liquid; the rubber block 2 has elasticity and has a certain energy consumption effect in the vertical direction. The vertical plate 3 is provided with at least four vertical plates and is uniformly arranged along the circumference of the inner cylinder 502.

[0032] The elastic member 7 can be a spring or an elastic plate, and the spring is preferably used for convenient installation. The spring is sleeved on the guide column 6. The guide column 6 can be provided with a plurality of guide columns according to requirements, so as to increase the number of springs and improve the damping effect.

[0033] The transmission member 8 includes a mounting plate 801, the mounting plate 801 is provided with a guide hole 802 which cooperates with the guide column 6, and the upper surface of the mounting plate 801 is provided with a partition ring 803 which abuts against the upper connecting plate 101. When horizontally vibrating, the upper connecting plate 101 relatively slides with the partition ring 803, and when vertically vibrating, the upper connecting plate 101 presses the partition ring 803, so as to compress the elastic member 7. The height of the partition ring 803 determines the up-down movement stroke of the upper support 1.

[0034] The upper connecting plate 101 is provided with a first mounting hole 104, and the lower connecting plate 501 is provided with a second mounting hole 503. The first mounting hole 104 and the second mounting hole 503 can pass through high-strength bolts to be fixedly connected with the bridge deck and the support column.

[0035] The above merely is preferred embodiment of the present utility model, and is not used to limit the present utility model, for the person skilled in the art, the present utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the present utility model should be contained in the protection scope of the present utility model.

Claims

1. A three-dimensional vibration isolation support for a trestle in mountainous areas, comprising an upper support (1) and a lower support (5), characterized in that: The upper support (1) comprises an upper connecting plate (101) and an outer cylinder (102) connected to the lower surface of the upper connecting plate (101); the lower support (5) comprises a lower connecting plate (501) and an inner cylinder (502) connected to the upper surface of the lower connecting plate (501); the inner cylinder (502) is located on the inner side of the outer cylinder (102); a plurality of U-shaped dampers (4) arranged along the circumference of the inner cylinder (502) are provided between the inner cylinder (502) and the outer cylinder (102); a guide column (6) is installed on the lower connecting plate (501); a transmission member (8) abutting against the upper connecting plate (101) is movably sleeved on the guide column (6); an elastic member (7) for maintaining the transmission member (8) abutting against the upper connecting plate (101) is provided between the transmission member (8) and the lower connecting plate (501).

2. The three-dimensional vibration isolation support for a mountain trestle according to claim 1 is characterized in that: Limiting blocks (401) are provided on both sides of the U-shaped damper (4); a first limiting groove (103) is vertically provided on the outer cylinder (102); a second limiting groove (504) is vertically provided on the inner cylinder (502) and is arranged opposite to the first limiting groove (103); and the two limiting blocks (401) are slidably provided in the first limiting groove (103) and the second limiting groove (504), respectively.

3. The three-dimensional vibration isolation support for a mountain trestle according to claim 1 is characterized in that: A damping seat (9) is fixedly provided on the lower connecting plate (501), a damping groove is provided on the damping seat (9), a vertical plate (3) is movably sealed in the damping groove, and a rubber block (2) fixedly connected to the upper connecting plate (101) is fixedly provided on the upper end surface of the vertical plate (3).

4. The three-dimensional vibration isolation support for a mountain trestle according to claim 3 is characterized in that: Damping fluid is arranged in the damping groove.

5. The three-dimensional vibration isolation support for a mountain trestle according to claim 1 is characterized in that: The elastic member (7) is a spring, which is sleeved on the guide column (6).

6. The three-dimensional vibration isolation support for a mountain trestle according to claim 1, characterized in that: The transmission member (8) includes a mounting plate (801), a guide hole (802) cooperating with the guide column (6) is provided on the mounting plate (801), and a spacer ring (803) abutting against the upper connecting plate (101) is provided on the upper surface of the mounting plate (801).

7. The three-dimensional vibration isolation support for a mountain trestle according to claim 1, characterized in that: The upper connecting plate (101) is provided with a first mounting hole (104), and the lower connecting plate (501) is provided with a second mounting hole (503).

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