Stable lifting auxiliary structure suitable for bridge load test

Abstract

The utility model relates to the technical field of lifting auxiliary structures, and discloses a stable lifting auxiliary structure suitable for a bridge load test, which comprises a middle frame, the right side of the middle frame is slidably connected with a height adjusting frame, and the bottom of the height adjusting frame is provided with a bottom frame. According to the stable lifting auxiliary structure suitable for the bridge load test, firstly, equipment is transported to a bridge needing to be tested through an oversize vehicle, the height of a height adjusting frame is adjusted through a hydraulic lifting rod on the side face of a sliding frame so that the height can meet the thickness and width of the bridge, and then a bottom frame drives a rotating connecting piece to rotate through a driving motor; then, a pressure applying hydraulic rod in the middle of the bottom frame drives a test plate at the top to rise to abut against the bottom of the bridge, the load degree of the bridge is tested through pressure applying, the effect of pressure applying test at the bottom is achieved, and the situation that the hidden danger of the bridge is not found due to the fact that the test is not accurate enough is avoided; the safety of the bridge is influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to stable lifting auxiliary structure technical field, especially applicable to bridge load test's stable lifting auxiliary structure. BACKGROUND

[0002] Bridge load test is mainly used to verify the performance of bridge structure under different load conditions, usually involves static load test or dynamic load test to the bridge. By simulating the actual traffic load, test the bridge under actual use conditions, such as deformation, stress distribution, etc. This is important for the design verification of new bridge, safety evaluation and maintenance management of old bridge, so it is necessary to design stable lifting auxiliary structure applicable to bridge load test.

[0003] The existing lifting auxiliary device, pollution can be done through the adjustment of lifting mechanism, to test the load degree of bridge, but in order to more accurate test to the bridge, can also be through the hydraulic rod under the bridge repeatedly lifting pressure, accurate test, and the existing lifting auxiliary device, when being transported to the bridge deck that needs to be detected by large vehicle, in order to ensure that the device can be stably supported to test, it is necessary to install the device that can reinforce the stability of equipment on the left side of the device, increase the stability of equipment. SUMMARY

[0004] (I) technical problem solved

[0005] The utility model aims at providing stable lifting auxiliary structure applicable to bridge load test, to solve the above-mentioned background art that the existing lifting auxiliary device, pollution can be done through the adjustment of lifting mechanism, to test the load degree of bridge, but in order to more accurate test to the bridge, can also be through the hydraulic rod under the bridge repeatedly lifting pressure, accurate test, and the existing lifting auxiliary device, when being transported to the bridge deck that needs to be detected by large vehicle, in order to ensure that the device can be stably supported to test, it is necessary to install the device that can reinforce the stability of equipment on the left side of the device, increase the stability of equipment.

[0006] (II) technical scheme

[0007] In order to achieve the above object, the utility model discloses a stable type lifting auxiliary structure suitable for bridge load test, including middle frame, the right side of middle frame is connected with height adjusting frame slidingly, the bottom of height adjusting frame is installed with the chassis, the middle part fixed plate of chassis is connected with test mechanism, the left side of middle frame is installed with vertical board, the side fixed connection of vertical board has fixed mechanism, test mechanism includes the pressure hydraulic rod of fixed connection in the middle part of chassis, the top fixed connection of pressure hydraulic rod has test board, fixed mechanism includes the ring of fixed connection in the side of vertical board, the inside bushing of ring has the iron chain, the bottom bushing of iron chain has fixed peg.

[0008] As a further scheme of the utility model, the top surface middle part of test board is equipped with detection hole, the inside installation of detection hole has pressure sensor, the tail of pressure sensor is electrically connected with PLC controller through power cord, and the function of accurate test is played through the setting of pressure sensor.

[0009] As a further scheme of the utility model, the right side fixed connection of middle frame has sliding frame, the top end side fixed connection of sliding frame has connecting block, and the function of sliding connection height adjusting frame up and down movement is played through the setting of sliding frame.

[0010] As a further scheme of the utility model, the top surface fixed connection of connecting block has hydraulic lifting rod, the top surface fixed connection of hydraulic lifting rod has fixed block, and the function of driving height adjusting frame height adjustment is played through the setting of hydraulic lifting rod.

[0011] As a further scheme of the utility model, the left side upper fixed connection of vertical board has fixed sheet, the inside rotation connection of fixed sheet has support hydraulic rod, and the function of side pulling support is played through the setting of support hydraulic rod.

[0012] As a further scheme of the utility model, the bottom fixed connection of support hydraulic rod has rotating piece, the rotation connection of rotating piece left and right sides has fixed part, and the function of bottom fixation is played through the setting of fixed part.

[0013] As a further scheme of the utility model, the inside fixed connection of height adjusting frame has several reinforcing rods, the bottom rotation connection of height adjusting frame has rotating connecting piece, the outside bushing of rotating connecting piece has connecting frame, the right side fixed connection of connecting frame is in the right side of chassis, the bottom fixed connection of rotating connecting piece has drive motor, and the function of increasing device solid degree is played through the setting of reinforcing rod.

[0014] (Three) beneficial effects

[0015] The utility model provides a stable type lifting auxiliary structure suitable for bridge load test has the following beneficial effects:

[0016] 1, this stable type lifting auxiliary structure suitable for bridge load test, through the setting of testing mechanism, first equipment is transported to the bridge that needs to be tested with large -scale vehicle, the height of height adjusting frame is adjusted through the hydraulic lifting rod of slide frame side, make the height comply with the thickness and width of bridge itself, after the chassis is driven to rotate connecting piece through drive motor, make the chassis rotate to the below of bridge, the pressure hydraulic rod of the middle part of chassis goes up and rests on the bottom of bridge with the top test board, the load degree of bridge is tested, the effect that the bottom pressure test is played, avoid the not enough accurate of test, lead to the hidden danger that bridge exists is not found, influence the safety of bridge.

[0017] 2, this stable type lifting auxiliary structure suitable for bridge load test, through the setting of fixed mechanism, when the device tests, in order to ensure the stability in the equipment test process, first the support hydraulic rod in the side is drawn in the side, then the iron chain on the two side hanging rings below the vertical plate is drawn and straight, make the fixed bolt at the end of iron chain can be fixed on the ground, draw and support in both sides, the effect that the equipment stability is kept is played, avoid the instability of equipment support, influence test, lead to the test result is not accurate. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is whole structure schematic view of the utility model;

[0019] Figure 2 It is testing mechanism structure schematic view of the utility model;

[0020] Figure 3 It is fixed mechanism structure schematic view of the utility model;

[0021] Figure 4 It is hydraulic lifting rod structure schematic view of the utility model;

[0022] Figure 5 It is connecting frame structure schematic view of the utility model.

[0023] In the drawing: 1, middle frame;2, height adjusting frame;3, chassis;4, testing mechanism;401, pressure hydraulic rod;402, test board;5, vertical plate;6, fixed mechanism;601, hanging ring;602, iron chain;603, fixed bolt;7, pressure sensor;8, PLC controller;9, slide frame;10, connecting block;11, hydraulic lifting rod;12, fixed block;13, fixed sheet;14, support hydraulic rod;15, rotating part;16, fixed part;17, reinforcing rod;18, rotating connecting piece;19, connecting frame;20, drive motor. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to Figures 1 to 5 The utility model provides a kind of technical scheme: stable type lifting auxiliary structure suitable for bridge load test, including middle frame 1, the right side of middle frame 1 is slidably connected with height adjusting frame 2, height adjusting frame 2 is installed with base 3 at bottom, the middle part of base 3 is connected with test mechanism 4, the left side of middle frame 1 is installed with vertical plate 5, the side of vertical plate 5 is fixedly connected with fixed mechanism 6, test mechanism 4 includes the pressure hydraulic rod 401 fixedly connected in the middle part of base 3, the top of pressure hydraulic rod 401 is fixedly connected with test plate 402, fixed mechanism 6 includes the hanging ring 601 fixedly connected in the side of vertical plate 5, the inside of hanging ring 601 is sleeved with iron chain 602, the bottom of iron chain 602 is sleeved with fixed bolt 603;

[0026] Please refer to Figure 1 The top surface middle part of test plate 402 is provided with detection hole, pressure sensor 7 is installed in the inside of detection hole, the tail end of pressure sensor 7 is electrically connected with PLC controller 8 by power line, the setting of pressure sensor 7 plays the role of detecting the pressure exerted by test, and accurate test is played;

[0027] Please refer to Figure 1 The right side of middle frame 1 is fixedly connected with sliding frame 9, the top end side of sliding frame 9 is fixedly connected with connecting block 10, the setting of sliding frame 9 plays the role of moving up and down on the height adjusting frame of sliding connection;

[0028] Please refer to Figure 1 The top surface of connecting block 10 is fixedly connected with hydraulic lifting rod 11, the top surface of hydraulic lifting rod 11 is fixedly connected with fixed block 12, the setting of hydraulic lifting rod 11 plays the role of driving height adjusting frame 2 to adjust height up and down;

[0029] Please refer to Figure 1 The left side of vertical plate 5 is fixedly connected with fixed piece 13, supporting hydraulic rod 14 is rotatably connected to the inside of fixed piece 13, the setting of supporting hydraulic rod 14 plays the role of pulling support on side;

[0030] Please refer to Figure 1 The bottom of supporting hydraulic rod 14 is fixedly connected with rotating piece 15, fixed piece 16 is rotatably connected to the left and right sides of rotating piece 15, the setting of fixed piece 16 plays the role of being fixed at bottom.

[0031] Please refer to Figure 1 The inside of the height adjusting frame 2 is fixedly connected with a plurality of reinforcing rods 17, the bottom of the height adjusting frame 2 is rotatably connected with a rotating connecting piece 18, the outside of the rotating connecting piece 18 is sleeved with a connecting frame 19, the right side of the connecting frame 19 is fixedly connected to the right side of the bottom frame 3, and the bottom of the rotating connecting piece 18 is fixedly connected with a driving motor 20.

[0032] In the utility model, the working steps of the device are as follows:

[0033] The first step is that the equipment is first transported to the bridge to be tested by a large vehicle, the height of the height adjusting frame 2 is adjusted by the hydraulic lifting rod 11 on the side of the sliding frame 9, so that the height conforms to the thickness and width of the bridge itself, then the bottom frame 3 is driven to rotate the rotating connecting piece 18 by the driving motor 20, so that the bottom frame 3 is rotated to the lower side of the bridge, then the middle part of the pressing hydraulic rod 401 of the bottom frame 3 carries the test plate 402 on the top and is lifted against the bottom of the bridge to test the load degree of the bridge;

[0034] The second step is that in order to ensure the stability of the equipment during the test, the side supporting hydraulic rod 14 is first pulled to support on the side, then the iron chain 602 on the hanging ring 601 on the lower side of the vertical plate 5 is pulled to be straight, so that the fixed bolt 603 at the end of the iron chain 602 can be fixed on the ground, and the two sides are pulled to support.

[0035] It should be noted that the equipment structure and the drawings of the utility model mainly describe the principle of the utility model, the setting of the power mechanism, the power supply system and the control system of the device is not completely described, and under the premise that the above-mentioned principle of the utility model is understood by the person skilled in the art, the specific power mechanism, power supply system and control system can be clearly known, the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art;

[0036] The standard parts used can be purchased from the market, and can be ordered according to the description and drawings, the specific connection mode of each part adopts the conventional bolt, rivet, welding and other conventional means in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the components known by the person skilled in the art, the structure and principle thereof are known by the person skilled in the art through technical manual or conventional experimental method.

[0037] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stable lifting auxiliary structure for bridge load testing, comprising a middle frame (1), characterized in that: The right side of the middle frame (1) is slidably connected with a height adjusting frame (2), the bottom of the height adjusting frame (2) is provided with a bottom frame (3), the middle part of the bottom frame (3) is fixedly connected with a testing mechanism (4), the left side of the middle frame (1) is provided with a vertical plate (5), the side of the vertical plate (5) is fixedly connected with a fixing mechanism (6), The testing mechanism (4) comprises a pressure hydraulic rod (401) fixedly connected to the middle part of the bottom frame (3), and the top of the pressure hydraulic rod (401) is fixedly connected with a testing plate (402), The fixing mechanism (6) comprises a hanging ring (601) fixedly connected to the side of the vertical plate (5), the inside of the hanging ring (601) is sleeved with an iron chain (602), and the bottom of the iron chain (602) is sleeved with a fixing bolt (603).

2. The stabilizing lift assist structure suitable for bridge load testing of claim 1, wherein: The top surface of the testing plate (402) is provided with a detection hole in the middle part, the inside of the detection hole is provided with a pressure sensor (7), and the tail end of the pressure sensor (7) is electrically connected with a PLC controller (8) through a power line.

3. The stabilizing lift assist structure suitable for bridge load testing of claim 1, wherein: The right side of the middle frame (1) is fixedly connected with a sliding frame (9), and the top end side of the sliding frame (9) is fixedly connected with a connecting block (10).

4. The stabilizing lift assist structure suitable for bridge load testing of claim 3, wherein: The top surface of the connecting block (10) is fixedly connected with a hydraulic lifting rod (11), and the top surface of the hydraulic lifting rod (11) is fixedly connected with a fixing block (12).

5. The stabilizing lift assist structure for bridge load testing of claim 1, wherein: The left side of the vertical plate (5) is fixedly connected with a fixing piece (13), and the inside of the fixing piece (13) is rotatably connected with a supporting hydraulic rod (14).

6. The stabilizing lift assist structure suitable for bridge load testing of claim 5, wherein: The bottom of the supporting hydraulic rod (14) is fixedly connected with a rotating piece (15), and the left and right sides of the rotating piece (15) are rotatably connected with fixing pieces (16).

7. The stabilizing lift assist structure suitable for bridge load testing of claim 1, wherein: The inside of the height adjusting frame (2) is fixedly connected with a plurality of reinforcing rods (17), the bottom of the height adjusting frame (2) is rotatably connected with a rotating connecting piece (18), the outside of the rotating connecting piece (18) is sleeved with a connecting frame (19), the right side of the connecting frame (19) is fixedly connected to the right side of the bottom frame (3), and the bottom of the rotating connecting piece (18) is fixedly connected with a driving motor (20).

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