CN220205165U

CN220205165U - Bridge deflection testing device

Info

Publication number: CN220205165U
Application number: CN202321544571.2U
Authority: CN
Inventors: 车功健; 龙希; 刘越; 朱尚清; 胡建新
Original assignee: Zhonggong Zhilian Beijing Technology Co ltd
Current assignee: Zhonggong Zhilian Beijing Technology Co ltd
Priority date: 2023-06-16
Filing date: 2023-06-16
Publication date: 2023-12-19
Anticipated expiration: 2033-06-16

Abstract

The utility model discloses a bridge deflection testing device, which comprises: a base; the bracket mechanism is arranged on the base and used for supporting the radar body and adjusting the height; the radar device comprises a radar body and is characterized in that the support mechanism comprises two mounting slide rails, movable strips capable of sliding up and down are respectively arranged on the mounting slide rails, middle transfer plates are fixedly arranged on opposite faces of the two movable strips, lifting frames are slidably arranged on the middle transfer plates, and the radar body is arranged at the top of each lifting frame. According to the utility model, the height of the test support is subjected to two-stage telescopic adjustment, so that the height adjustment range is enlarged, the higher working environment is conveniently met, meanwhile, the quick moving process can be realized by matching with the arrangement of the moving assembly, and meanwhile, the fixed-point work of the test support is conveniently realized, so that the deflection test of multiple positions of the bridge is greatly facilitated.

Description

Bridge deflection testing device

Technical Field

The utility model relates to the technical field of bridge deflection testing, in particular to a bridge deflection testing device.

Background

Deflection refers to linear displacement of the rod member axis in the direction perpendicular to the axis or linear displacement of the middle surface of the plate shell in the direction perpendicular to the middle surface when the bridge is subjected to bending deformation and the center of the cross section is along the linear displacement in the direction perpendicular to the axis when the stress or the non-uniform temperature changes. Deflection of the thin plate or the thin shell refers to displacement of each point on the middle surface normal line of the point, a deflection function or a displacement function of each point on the object changes along with the position and time, the deflection is related to load size, component section size and component material physical property, in actual bridge evaluation, the bridge deflection is a local index mainly reflected by stress strain relative to stress strain, the deflection is an index reflecting the whole rigidity of the bridge, and in terms of influence line implications, the deflection influence line can reflect local damage information of the moving load moving at different positions of the bridge by force and displacement theorem. The test of deflection influence lines requires high equipment test precision, high sampling frequency and simultaneous multi-point test, and the damage condition and bearing capacity of the bridge structure can be accurately evaluated only by extracting the measuring points of the full-bridge control section. The middle-small span bridges occupy a considerable proportion in the bridges in China, and the structural forms of the middle-small span bridges are mainly prefabricated plate beams, T beams and the like. In the prior art, the testing of the deflection of the bridge is always limited by the traditional deflection testing method, and the deflection of a plurality of positions of the girder of the bridge is difficult to test at the same time, so that an accurate deflection influence line of the bridge is obtained, and therefore, the bridge deflection testing device is urgently needed to be provided.

Disclosure of Invention

The utility model aims to provide the bridge deflection testing device, which increases the height adjusting range by performing two-stage telescopic adjustment on the height of the testing support, is convenient for meeting higher working environments, and can realize a rapid moving process by matching with the arrangement of the moving assembly and is convenient for realizing the fixed-point work of the testing support, thereby greatly facilitating the deflection test of multiple positions on the bridge.

In order to achieve the above purpose, the present utility model provides the following technical solutions: bridge deflection testing arrangement includes: a base; the bracket mechanism is arranged on the base and used for supporting the radar body and adjusting the height; the radar device comprises a radar body, a radar base, a support mechanism and a radar base, wherein the support mechanism comprises two mounting slide rails, movable strips capable of sliding up and down are respectively arranged on the two mounting slide rails, an intermediate transfer plate is fixedly arranged on the opposite surfaces of the two movable strips, a lifting frame is slidably arranged on the intermediate transfer plate, and the radar base is arranged at the top of the lifting frame; and the meshing transmission mechanism is arranged on the installation sliding rail and is used for driving the middle transfer plate and the lifting frame to sequentially do lifting motion.

Preferably, the engagement transmission mechanism comprises an engagement driving assembly arranged on the installation sliding rail and used for driving the middle transmission plate to do lifting motion; the meshing driving assembly comprises a fixing piece fixed on one of the installation sliding rails, a motor is fixedly installed on the fixing piece, an output shaft of the motor penetrates through a through hole in which the fixing piece is positioned and is fixedly provided with a gear, and the side wall of the middle transmission plate is fixedly provided with a rack meshed with the gear; the lifting frame is characterized by further comprising a transmission assembly arranged on the middle transmission plate and used for driving the lifting frame to do further lifting movement.

Preferably, the transmission assembly comprises two transmission wheels arranged on the front side of the middle transmission plate, a transmission belt is connected between the two transmission wheels in a transmission way, a fixing block is fixedly connected between one side edge of the transmission belt and the fixing piece, a transmission block is fixedly arranged on the other side edge of the transmission belt, and the transmission block penetrates through a through groove formed in the middle transmission plate and is fixedly connected with the side wall of the lifting frame.

Preferably, the base is further provided with a supporting mechanism for supporting a support mechanism during operation, the supporting mechanism comprises two fixed frames horizontally placed on the upper surface of the base, each of the two fixed frames is provided with a mounting frame matched with the fixed frame, the middle part of the mounting frame is rotationally connected with a supporting bar, the end part of the supporting bar, far away from the mounting frame, is provided with a limiting rod, two limiting grooves for the sliding of the limiting rod are respectively formed in the fixed frames, and the end part of the limiting groove, close to the mounting sliding rail, is provided with grooves clamped with the limiting rod.

Preferably, a plurality of support legs are fixedly arranged at the bottom of the base.

Preferably, the middle part of base has seted up the mounting groove, mounting groove internally mounted has the removal subassembly.

Preferably, the movable assembly comprises a fixed mounting plate, a rotatable screw rod is arranged on the mounting plate, a handle is arranged at the top of the screw rod, a rod sleeve is connected to the lower portion of the screw rod in a threaded mode, a mounting piece is fixed to the inner wall of the mounting groove and used for limiting sliding of the rod sleeve up and down, a mounting seat is fixedly connected to the bottom of the rod sleeve, and a plurality of rollers are arranged at the bottom of the mounting seat.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, through the structural design, the height of the test support can be adjusted in a two-stage manner, the height adjusting range is enlarged, the higher working environment is conveniently met, meanwhile, when the test support does not work, the two-stage shrinkage can reduce the occupied volume of the test support, the test support is convenient to carry, meanwhile, the test support is matched with the arrangement of the moving assembly, namely, the plurality of rollers of the mounting seat are contacted with the ground, the support legs are separated from the ground at the moment, so that the moving process can be realized, and similarly, when the rod sleeve moves upwards, and when the rollers are separated from the ground, the support legs are contacted with the ground, the fixed-point work of the test support can be realized, so that the bridge can be tested in a plurality of positions conveniently.

Drawings

FIG. 1 is a schematic view of a first perspective view of the present utility model;

FIG. 2 is a schematic view of a second perspective view of the present utility model;

FIG. 3 is a perspective view of a third perspective view of the present utility model;

FIG. 4 is a schematic elevational view of the present utility model;

FIG. 5 is a schematic view of a cross-sectional A-A structure of the present utility model.

In the figure: 1. lifting the frame; 2. a radar body; 3. an intermediate transfer plate; 4. a through groove; 5. installing a sliding rail; 6. a movable bar; 7. a mounting frame; 8. a support bar; 9. a limit rod; 10. a fixed frame; 11. a limit groove; 12. a base; 13. support legs; 14. a mounting groove; 15. a rod sleeve; 16. a mounting plate; 17. a handle; 18. a screw; 19. a transmission block; 20. a driving wheel; 21. a drive belt; 22. a fixed block; 23. a fixing member; 24. a motor; 25. a gear; 26. a roller; 27. a rack; 28. and (5) a mounting seat.

Detailed Description

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Example 1

Referring to fig. 1 to 5, the present utility model preferably provides the following technical solutions: bridge deflection testing arrangement includes: a base 12; a bracket mechanism provided on the base 12 for supporting and height-adjusting the radar body 2; the support mechanism comprises two mounting slide rails 5, movable strips 6 capable of sliding up and down are respectively arranged on the two mounting slide rails 5, middle transfer plates 3 are fixedly arranged on opposite surfaces of the two movable strips 6, lifting frames 1 are slidably arranged on the middle transfer plates 3, and radar bodies 2 are arranged at the tops of the lifting frames 1; the meshing transmission mechanism is arranged on the installation slide rail 5 and is used for driving the middle transfer plate 3 and the lifting frame 1 to sequentially do lifting motion.

In this embodiment, through the movable strip 6 that sets up respectively on two installation slide rails 5, and the opposite face fixed mounting of movable strip 6 has middle transfer board 3, slidable mounting has lifting frame 1 on the transfer board 3 in the middle of the cooperation, as shown in fig. 3, when the meshing drive assembly during operation, can drive middle transfer board 3 up-and-down motion, further because the linking effect of meshing drive mechanism for drive lifting frame 1 further elevating movement, can carry out the flexible regulation of two-stage to test support height, the accommodation of height has been increased, be convenient for satisfy higher operational environment, simultaneously, when test support is inoperative, the two-stage shrink, the occupation volume of this test support can be reduced, portable.

Further, the meshing transmission mechanism comprises a meshing driving assembly arranged on the installation sliding rail 5 and used for driving the middle transfer plate 3 to do lifting motion: the meshing driving assembly comprises a fixing piece 23 fixed on one of the mounting slide rails 5, a motor 24 is fixedly arranged on the fixing piece 23, an output shaft of the motor 24 penetrates through a through hole in which the fixing piece 23 is positioned and is fixedly provided with a gear 25, and the side wall of the middle transmission plate 3 is fixedly provided with a rack 27 meshed with the gear 25; the lifting frame further comprises a transmission component arranged on the middle transmission plate 3 and used for driving the lifting frame 1 to do further lifting movement.

Through the motor 24 fixedly arranged on the fixing piece 23 and the meshing action of the gear 25 and the rack 27, when the driving motor 24 works, the gear 25 can be further driven to rotate, so that the middle transmission plate 3 where the rack 27 is positioned can be further moved up and down.

Further, the transmission assembly comprises two transmission wheels 20 arranged on the front side of the middle transmission plate 3, a transmission belt 21 is connected between the two transmission wheels 20 in a transmission manner, a fixing block 22 is fixedly connected between one side edge of the transmission belt 21 and a fixing piece 23, a transmission block 19 is fixedly arranged on the other side edge of the transmission belt 21, and the transmission block 19 penetrates through a through groove 4 formed in the middle transmission plate 3 and is fixedly connected with the side wall of the lifting frame 1.

Through the setting of drive assembly, as shown in fig. 3, owing to be connected with drive belt 21 in the transmission between two drive wheels 20, on the one hand, owing to one side of drive belt 21 and the fixed block 22 fixed connection at mounting 23 place, on the other hand, the other side of drive belt 21 passes through drive block 19 and the lateral wall fixed connection of lifting frame 1, namely when middle transfer board 3 up-and-down motion, under fixed block 22 fixed connection's effect, drive belt 21 is forced to take place the motion to owing to the connecting action of drive block 19, can further drive lifting frame 1 elevating movement, thereby alright realize the flexible regulation of two-stage of test support.

Further, still be provided with supporting mechanism on the base 12 for support the support mechanism of during operation, supporting mechanism is including two fixed frames 10 of horizontal placement at base 12 upper surface, every installation slide rail 5 is close to fixed frame 10's lateral wall be provided with fixed frame 10 assorted installation frame 7, the middle part rotation of installation frame 7 is connected with support bar 8, support bar 8 keeps away from the tip of installation frame 7 and is provided with gag lever post 9, set up respectively on two fixed frames 10 and supply gag lever post 9 gliding spacing groove 11, the tip that spacing groove 11 is close to installation slide rail 5 is provided with the recess with gag lever post 9 block.

The support bar 8 connected through the middle part rotation of the mounting frame 7, and the tip of support bar 8 is provided with gag lever post 9, be provided with the recess with gag lever post 9 block on the cooperation spacing groove 11, as fig. 1 and 2, this state is the operating condition of test support, the recess block that gag lever post 9 and spacing groove 11 are located, the support bar 8 that sets up this moment can support the test support that installation slide rail 5 is located, the normal clear of work of being convenient for, when gag lever post 9 roll-off spacing groove 11 that support bar 8 is located, can fold the test support that installation slide rail 5 is located this moment, the later stage of being convenient for carries.

Example 2

Referring to fig. 3 to 5, another embodiment of the present utility model is preferably provided: further, a plurality of support legs 13 are fixedly arranged at the bottom of the base 12 and used for fixedly supporting the base 12, so that the support is convenient to absolutely stabilize when working at fixed points, and the working quality is further ensured.

Further, the middle part of the base 12 is provided with a mounting groove 14, a moving assembly is mounted in the mounting groove 14, and when the position of the test support needs to be changed through the moving assembly, the test support can be quickly moved through the arrangement of the moving assembly.

Further, the moving assembly comprises a fixed mounting plate 16, a rotatable screw rod 18 is arranged on the mounting plate 16, a handle 17 is arranged at the top of the screw rod 18, a rod sleeve 15 is connected to the lower portion of the screw rod 18 in a threaded mode, a mounting piece is fixed to the inner wall of the mounting groove 14 and used for limiting sliding of the rod sleeve 15 up and down, a mounting seat 28 is fixedly connected to the bottom of the rod sleeve 15, and a plurality of rollers 26 are arranged at the bottom of the mounting seat 28.

Through the setting of this removal subassembly, owing to set up rotatable screw rod 18, and screw rod 18 lower part threaded connection has pole cover 15, the upper and lower spacing slip of cooperation pole cover 15, when needs are removed this test stand, the accessible manual rotation screw rod 18 can drive the downward movement of pole cover 15, thereby make a plurality of gyro wheels 26 that mount pad 28 place contact with ground, support leg 13 and ground break away from this moment, thereby alright realize the removal process, and similarly, when the upward movement of pole cover 15, when gyro wheel 26 and ground break away from, support leg 13 and ground contact this moment, alright realize the fixed point work of test stand.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The detachable mounting mode is various, for example, the detachable mounting mode can be matched with the buckle through plugging, for example, the detachable mounting mode can be realized through a bolt connection mode, and the like.

The conception, specific structure, and technical effects produced by the present utility model are clearly and completely described above in connection with the embodiments and the drawings so as to fully understand the objects, features, and effects of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present utility model based on the embodiments of the present utility model. In addition, all coupling/connection relationships mentioned herein do not refer to direct connection of the components, but rather, refer to the fact that a more optimal coupling structure may be formed by adding or subtracting coupling aids depending on the particular implementation.

The foregoing embodiments are provided for further explanation of the present utility model and are not to be construed as limiting the scope of the present utility model, and some insubstantial modifications and variations of the present utility model, which are within the scope of the utility model, will be suggested to those skilled in the art in light of the foregoing teachings.

Claims

1. Bridge deflection testing arrangement, its characterized in that includes:

a base (12);

the bracket mechanism is arranged on the base (12) and is used for supporting the radar body (2) and adjusting the height;

the support mechanism comprises two mounting slide rails (5), movable strips (6) capable of sliding up and down are respectively arranged on the two mounting slide rails (5), middle transfer plates (3) are fixedly arranged on opposite surfaces of the two movable strips (6), and lifting frames (1) for the radar body (2) to be arranged are slidably arranged on the middle transfer plates (3);

the meshing transmission mechanism is arranged on the installation sliding rail (5) and is used for driving the middle transfer plate (3) and the lifting frame (1) to sequentially do lifting motion.

2. The bridge deflection testing device of claim 1, wherein:

the meshing transmission mechanism comprises a meshing driving assembly arranged on the installation sliding rail (5) and is used for driving the middle transmission plate (3) to do lifting motion;

the meshing driving assembly comprises a fixing piece (23) fixed on the installation sliding rail (5), a motor (24) is fixedly installed on the fixing piece (23), an output shaft of the motor (24) penetrates through a through hole where the fixing piece (23) is located and is fixedly provided with a gear (25), and the side wall of the middle transmission plate (3) is fixedly provided with a rack (27) meshed with the gear (25);

the lifting device also comprises a transmission assembly arranged on the middle transfer plate (3) and used for driving the lifting frame (1) to do further lifting movement.

3. The bridge deflection testing device of claim 2, wherein: the transmission assembly comprises two transmission wheels (20) arranged on the front side of the middle transmission plate (3), a transmission belt (21) is connected between the two transmission wheels (20), a fixing block (22) is fixedly connected between one side edge of the transmission belt (21) and the fixing piece (23), a transmission block (19) is fixedly arranged on the other side edge of the transmission belt (21), and the transmission block (19) penetrates through a through groove (4) formed in the middle transmission plate (3) and is fixedly connected with the side wall of the lifting frame (1).

4. The bridge deflection testing device of claim 1, wherein: the base (12) is also provided with a supporting mechanism for supporting the bracket mechanism during working;

the supporting mechanism comprises two fixed frames (10) horizontally placed on the upper surface of a base (12), each mounting sliding rail (5) is provided with a mounting frame (7) matched with the fixed frame (10) near the side wall of the fixed frame (10), the middle part of the mounting frame (7) is rotationally connected with a supporting bar (8), the end part of the supporting bar (8) away from the mounting frame (7) is provided with a limiting rod (9), two limiting grooves (11) for the limiting rod (9) to slide are respectively formed in the fixed frames (10), and the end part of the limiting groove (11) near the mounting sliding rail (5) is provided with grooves clamped with the limiting rod (9).

5. The bridge deflection testing device of claim 1, wherein: the bottom of the base (12) is fixedly provided with a plurality of support legs (13).

6. The bridge deflection testing device of claim 1, wherein: the middle part of base (12) has seted up mounting groove (14), mounting groove (14) internally mounted has the removal subassembly.

7. The bridge deflection testing device of claim 6, wherein: the movable assembly comprises a fixed mounting plate (16), a rotatable screw rod (18) is arranged on the mounting plate (16), a handle (17) is arranged at the top of the screw rod (18), a rod sleeve (15) is connected to the lower portion of the screw rod (18) in a threaded mode, a mounting piece is fixed to the inner wall of the mounting groove (14) and used for limiting and sliding the rod sleeve (15) up and down, a mounting seat (28) is fixedly connected to the bottom of the rod sleeve (15), and a plurality of rollers (26) are arranged at the bottom of the mounting seat (28).