Bridge load deflection measurement auxiliary device

Abstract

The utility model discloses a bridge load deflection measurement auxiliary device which comprises a mounting frame and further comprises a supporting assembly, an adjusting assembly, a lifting assembly and a box body used for containing a bridge deflection measurement device, the supporting assembly is arranged at the center of the mounting frame and used for abutting against the ground, and the box body is rotatably mounted on the lifting assembly; the adjusting assembly is arranged on the lifting assembly and used for limiting the rotating direction of the box body, a plurality of heat dissipation openings are formed in the side wall of the box body, and any two opposite sides of the box body are open and hinged to a box door. Through the box body, the measuring device can be shielded and protected, the influence of environmental factors such as severe weather on the measuring device can be reduced, and the accuracy of a measuring result is improved; and the supporting assembly can play an auxiliary supporting role on the mounting frame, so that the mounting stability of the mounting frame is improved, and the mounting frame is simple and convenient to use.

Description

Technical Field

[0001] The utility model relates to the field of bridge deflection measurement, in particular to a bridge load deflection measurement auxiliary device. Background Art

[0002] At present, the main measurement methods for bridge load test deflection include optical (electrical) method (total station, level, deflectometer, electric displacement meter, etc.), mechanical method (dividing indicator, micrometer), connecting vessel method (static level), satellite positioning measurement method (GNSS static measurement), etc. With the development of high-definition photography technology, photogrammetry based on image processing has also been gradually applied. Different measurement methods are suitable for different situations, such as structural type, structural span, range, dryness, geographical environment, and the costs invested in different methods are also very different. For small and medium-span bridges with the most actual engineering applications, from the perspective of applicability, optical (electrical) method is still the most widely used and most cost-effective method, especially the displacement meter method, which has the advantages of automatic acquisition control, simultaneous multi-point measurement, convenience and speed without affecting test loading, and is widely used.

[0003] The applicant retrieved and obtained the following prior art. Specifically, the patent with publication number CN208206016U discloses an auxiliary tripod platform device for bridge deflection detection, including a base, a rotating platform connected to the upper surface of the base through a vertical axis rotation, the base is an equilateral triangle, and a receiving tube is hinged in the middle of the side of each side of the triangle, and a receiving tube locking device is provided on the platform device. The utility model platform device has a simple structure, low detection cost, and is easy to assemble and disassemble and adjust the angle. In the case of rapid water flow, it can also increase stability by injecting water into the receiving tube. It is suitable for the deflection measurement of various bridges, thereby solving some problems caused by the high cost of bracket erection and poor safety.

[0004] It can be seen from the above patent that although the auxiliary tripod platform device for bridge deflection detection has a simple structure, low detection cost, is easy to assemble and disassemble and adjust the angle, and the stability of the device can be increased by injecting water into the receiving tube, the operation steps of injecting water into the receiving tube are cumbersome and difficult, inconvenient to use, and reduce the measurement efficiency; at the same time, the measuring device is exposed to the atmospheric environment after installation, which makes the measuring device susceptible to environmental interference and affects the measurement, thereby reducing the accuracy of the measurement results. Utility Model Content

[0005] The main purpose of the utility model is to provide a bridge load deflection measurement auxiliary device, aiming to solve the problem that the existing bridge load deflection measurement auxiliary device is inconvenient to use and reduces the measurement efficiency and the accuracy of the measurement result.

[0006] To achieve the above-mentioned purpose, the utility model provides a bridge load deflection measurement auxiliary device, including a mounting frame, and also including a support assembly, an adjustment assembly, a lifting assembly and a box for placing the bridge deflection measuring device, the support assembly is arranged at the center position of the mounting frame and is used to abut against the ground, the box is rotatably installed on the lifting assembly to drive the box to move up and down through the lifting assembly, the adjustment assembly is arranged on the lifting assembly and is used to limit the rotation direction of the box, a plurality of heat dissipation ports are opened on the side walls of the box, and any two opposite sides are open and hinged with box doors.

[0007] Preferably, the lifting assembly includes an adjustment seat and a connecting seat, the adjustment seat can be rotatably mounted on the mounting frame, and a turning handle is formed on the outer wall of the adjustment seat along its circumference, a connecting hole is opened on the adjustment seat along the height direction of the mounting frame, and a connecting column is formed on the connecting seat for threaded cooperation with the connecting hole.

[0008] Preferably, the mounting frame includes a base, the supporting assembly includes a supporting column and a base, the supporting column is vertically arranged on the base, one end of the supporting column is detachably connected to the base, a mounting hole is formed at the other end of the supporting column, a sliding groove is formed on the hole wall of the mounting hole along the extension direction of the supporting column, a telescopic column for extending into the mounting hole is formed on the base, and a locking member for extending into the sliding groove is detachably mounted on the telescopic column.

[0009] Preferably, the mounting frame includes a base, and the supporting assembly includes a supporting column, a connecting rod and a base, the supporting column is vertically arranged on the base, one end of the supporting column is detachably connected to the base, the other end of the supporting column is provided with a mounting hole, a sliding groove is provided on the hole wall of the mounting hole along the extension direction of the supporting column, the connecting rod is in sliding contact with the mounting hole, and one end of the connecting rod is provided with a locking piece for extending into the sliding groove, and the other end of the connecting rod extends out of the mounting hole and is spherically hinged with the base.

[0010] Preferably, a handle is provided on the outer wall of one end of the support column close to the box body.

[0011] Preferably, a groove is provided on the top surface of the connecting seat, the top surface of the groove wall abuts against the bottom surface of the box body, and a boss for extending into the groove is formed on the bottom surface of the box body, the boss is coaxially arranged with the connecting column, the top surface of the boss abuts against the bottom surface of the groove, a through hole is provided at the center position of the boss, and a locking hole is provided on the bottom surface of the groove at a position corresponding to the through hole, and the box body is installed on the connecting seat by a locking column passing through the through hole and the locking hole.

[0012] Preferably, the adjustment assembly comprises a ratchet wheel sleeved on the outer wall of the boss and a pawl arranged in the groove to prevent the ratchet wheel from reversing.

[0013] Beneficial effects:

[0014] 1. The utility model bridge load deflection measurement auxiliary device places the measuring device in a box, which not only shields and protects the measuring device, but also reduces the impact of environmental factors such as bad weather on the measuring device, provides a stable measurement environment for the measuring device, and improves the accuracy of the measurement results.

[0015] 2. The bridge load deflection measurement auxiliary device of the present invention increases the contact area between the mounting frame and the ground through the support assembly, thereby providing auxiliary support for the mounting frame, improving the installation stability of the present invention, and being simple and convenient to use.

[0016] 3. The utility model bridge load deflection measurement auxiliary device can drive the box and the measuring device inside it to move up and down through the lifting assembly, so as to adjust the height position of the measuring device, so that the measuring device can adapt to different bridge structures, and thereby obtain measurement data at different positions, and can more accurately reflect the deflection deformation of the bridge, improve measurement accuracy, reduce errors, and is flexible to use and suitable for different measurement environments and conditions.

[0017] 4. The utility model bridge load deflection measurement auxiliary device can limit the rotation direction of the box through the adjustment component, thereby preventing the box from driving the measuring device to rotate randomly during the measurement process, and the use is reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 It is a structural schematic diagram of a bridge load deflection measurement auxiliary device in a first viewing angle according to an embodiment of the utility model;

[0020] Figure 2 It is a structural schematic diagram of a bridge load deflection measurement auxiliary device in a second viewing angle according to an embodiment of the utility model;

[0021] Figure 3 It is a top view of the bridge load deflection measurement auxiliary device in a second viewing angle according to an embodiment of the utility model;

[0022] Figure 4 yes Figure 3 Cross-sectional view at AA in the middle;

[0023] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle;

[0024] Figure 6 A schematic diagram of the installation of an adjustment component in a bridge load deflection measurement auxiliary device according to an embodiment of the utility model.

[0025] In the figure: 1-mounting frame; 2-support assembly; 3-adjustment assembly; 4-lifting assembly; 5-box; 6-heat dissipation port; 7-box door; 8-adjustment seat; 9-connection seat; 10-connection column; 11-base; 12-support column; 13-base; 14-mounting hole; 15-slide; 16-telescopic column; 17-locking piece; 18-handle; 19-groove; 20-boss; 21-locking column. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0030] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Embodiment 1:

[0033] The utility model provides a bridge load deflection measurement auxiliary device.

[0034] In one embodiment of the utility model, a bridge load deflection measurement auxiliary device includes a mounting frame 1, and also includes a support assembly 2, an adjustment assembly 3, a lifting assembly 4 and a box 5 for placing the bridge deflection measurement device. The support assembly 2 is arranged at the center position of the mounting frame 1 and is used to abut against the ground. The box 5 is rotatably installed on the lifting assembly 4 to drive the box 5 to move up and down through the lifting assembly 4. The adjustment assembly 3 is arranged on the lifting assembly 4 and is used to limit the rotation direction of the box 5. A plurality of heat dissipation ports 6 are opened on the side walls of the box 5, and any two opposite sides are open and hinged with a box door 7.

[0035] Specifically, Figures 1 to 6As shown, in the utility model bridge load deflection measurement auxiliary device, the mounting frame 1 can be selected as a tripod with telescopic function in the prior art, that is, each leg of the tripod can be telescopically adjusted, so that the utility model can not only adapt to different placement locations, such as a road with a slope, but also provide a relatively stable installation position for the measuring device. Furthermore, since the support component 2 is arranged at the center of the mounting frame 1 and is used to abut against the ground, the support component 2 can increase the contact area between the mounting frame 1 and the ground, thereby playing an auxiliary supporting role for the mounting frame 1, improving the installation stability of the utility model, and no other operations such as water injection are required, which is simple and convenient to use.

[0036] It is understandable that the measuring device in the prior art is exposed to the atmosphere after installation. If the ambient temperature changes, the optical components in the measuring device will reduce the stability of the optical path system due to thermal expansion and contraction, such as affecting the focal length and optical path of the lens, thereby reducing the accuracy of the measurement result. In the present utility model, the measuring device is placed in the box 5, which can not only shield and protect the measuring device, but also reduce the impact of environmental factors such as bad weather on the measuring device. For example, in hot weather, the box 5 can provide heat insulation protection for the measuring device to prevent the measuring device from being exposed to the sun and affecting the stability of the optical path system, thereby providing a stable measurement environment for the measuring device and improving the accuracy of the measurement result; at the same time, since any two opposite sides of the box 5 are open and hinged with a box door 7, the staff can use the measuring device normally after opening the box door 7, and a number of heat dissipation ports 6 are also provided on the side wall of the box 5, thereby preventing the box 5 from overheating or excessive humidity and affecting the measuring device, and the structural design is simple and reasonable.

[0037] In addition, since the box 5 is rotatably mounted on the lifting assembly 4, the lifting assembly 4 can drive the box 5 and the measuring device inside it to move up and down, thereby adjusting the height position of the measuring device, so that the measuring device can adapt to different bridge structures, and thereby obtain measurement data at different positions, and can more accurately reflect the deflection and deformation of the bridge, improve measurement accuracy, reduce errors, and be flexible to use and suitable for different measurement environments and conditions. It is worth noting that since the measuring device needs to change and correct its direction according to the specific measurement position of the bridge before use, the utility model can limit and adjust the rotation direction of the box 5 through the adjustment assembly 3, thereby preventing the box 5 from driving the measuring device to rotate arbitrarily during the measurement process, and is reliable to use.

[0038] In one embodiment, the lifting assembly 4 includes an adjustment seat 8 and a connection seat 9. The adjustment seat 8 is rotatably mounted on the mounting frame 1, and a handle is formed on the outer wall of the adjustment seat 8 along its circumference. A connection hole is opened on the adjustment seat 8 along the height direction of the mounting frame 1, and a connection column 10 for threaded engagement with the connection hole is formed on the connection seat 9. Figures 1 to 5 As shown, it can be understood that when the height of the measuring device needs to be fine-tuned after the position of the mounting frame 1 is fixed, the staff grasps the handle on the outer wall of the adjustment seat 8 and rotates the adjustment seat 8 relative to the mounting frame 1. Since a connecting hole is opened on the adjustment seat 8 along the height direction of the mounting frame 1, and a connecting column 10 for threaded cooperation with the connecting hole is formed on the connecting seat 9, the connecting column 10 moves up and down in the connecting hole at this time, so that the connecting seat 9 can synchronously drive the box 5 and the measuring device to move up and down, thereby realizing the height position adjustment of the measuring device. The structural design is ingenious and reasonable, and the adjustment operation is simple and convenient.

[0039] In one embodiment, the mounting frame 1 includes a base 11, and the supporting assembly 2 includes a supporting column 12 and a base 13. The supporting column 12 is vertically arranged on the base 11, and one end of the supporting column 12 is detachably connected to the base 11. A mounting hole 14 is formed at the other end of the supporting column 12. A sliding groove 15 is formed on the hole wall of the mounting hole 14 along the extension direction of the supporting column 12. A telescopic column 16 for extending into the mounting hole 14 is formed on the base 13, and a locking member 17 for extending into the sliding groove 15 is detachably installed on the telescopic column 16.

[0040] Specifically, Figures 1 to 5 As shown, the upper end of the support column 12 is detachably connected to the base 11, and the detachable connection method can be a threaded connection in the prior art, so that the support column 12 can be easily disassembled and replaced. Further, the lower end of the support column 12 is provided with a mounting hole 14, and the base 13 is formed with a telescopic column 16 for inserting into the mounting hole 14, so that the base 13 can be movably installed on the support column 12 along the up and down direction relative to the base 11, so as to adapt to the expansion and contraction degree of the three legs on the mounting frame 1; at the same time, since a slide groove 15 is provided on the outer wall of the mounting hole 14 along the up and down direction, and a locking member 17 for inserting into the slide groove 15 is detachably installed on the telescopic column 16, the position of the telescopic column 16 can be fixed, and the structural design is simple and reasonable. In addition, the locking member 17 can be selected as an adjustment hand wheel with a stud in the prior art, and the fixed position of the telescopic column 16 can be conveniently adjusted by screwing the adjustment hand wheel without the need for other disassembly tools, etc., and the operation is convenient.

[0041] In another embodiment, the mounting frame 1 includes a base 11, and the support assembly 2 includes a support column 12, a connecting rod and a base 13. The support column 12 is vertically arranged on the base 11, and one end of the support column 12 is detachably connected to the base 11. A mounting hole 14 is provided at the other end of the support column 12, and a slide groove 15 is provided on the hole wall of the mounting hole 14 along the extension direction of the support column 12. The connecting rod is in sliding contact with the mounting hole 14, and a locking member 17 for extending into the slide groove 15 is provided at one end of the connecting rod, and the other end of the connecting rod extends out of the mounting hole 14 and is spherically hinged with the base 13. It can be understood that the upper end of the support column 12 is detachably connected to the base 11, and the detachable connection method can be a threaded connection in the prior art, so as to facilitate the disassembly and replacement of the support column 12. Furthermore, a mounting hole 14 is provided at the lower end of the support column 12, and a slide groove 15 is provided on the hole wall of the mounting hole 14 along the extension direction of the support column 12, and the connecting rod is in sliding contact with the mounting hole 14, and a locking piece 17 for extending into the slide groove 15 is provided at the upper end of the connecting rod, and the lower end of the connecting rod is spherically hinged to the base 13, so that not only the upper and lower positions of the base 13 can be adjusted, but also the base 13 can adapt to the slope of the ground, ensuring that the base 13 can always have a larger contact surface with the ground, thereby improving the support stability of the measuring device and being reliable in use.

[0042] In one embodiment, if Figure 2 As shown, a handle 18 is provided on the outer wall of one end of the support column 12 close to the box body 5, so as to facilitate the staff to carry the utility model.

[0043] In one embodiment, a groove 19 is provided on the top surface of the connecting seat 9, the top surface of the groove wall of the groove 19 abuts against the bottom surface of the box body 5, and a boss 20 for extending into the groove 19 is formed on the bottom surface of the box body 5, the boss 20 is coaxially arranged with the connecting column 10, the top surface of the boss 20 abuts against the bottom surface of the groove 19, a through hole is provided at the center position of the boss 20, and a locking hole is provided on the bottom surface of the groove 19 at a position corresponding to the through hole, and the box body 5 is installed on the connecting seat 9 through a locking column 21 passing through the through hole and the locking hole.

[0044] Specifically, Figures 1 to 6 As shown, when the box body 5 is installed, the top surface of the groove wall of the groove 19 abuts against the bottom surface of the box body 5, and the top surface of the boss 20 abuts against the bottom surface of the groove 19, so that the box body 5 and the measuring device inside it can be firmly supported; at the same time, the boss 20 is coaxially arranged with the connecting column 10, so that it is convenient for the staff to rotate and adjust the box body 5 and the measuring device, and a through hole is provided at the center position of the boss 20, and a locking hole is provided on the bottom surface of the groove 19 at a position corresponding to the through hole, so that the box body 5 can be installed on the connecting seat 9 through a locking column 21 passing through the through hole and the locking hole. The structural design is compact and reasonable, and it is convenient to disassemble and assemble the box body 5.

[0045] In one embodiment, specifically, Figure 5 and Figure 6 As shown, the adjustment assembly 3 includes a ratchet mounted on the outer wall of the boss 20 and a pawl arranged in the groove 19 to prevent the ratchet from reversing, so that the box 5 and the measuring device can only rotate in one direction, thereby adjusting the rotation direction of the box 5 and the measuring device, and effectively preventing the box 5 from driving the measuring device to rotate at will during the measurement process.

[0046] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A bridge load deflection measurement auxiliary device, comprising a mounting frame (1), characterized in that: It also includes a support component (2), an adjustment component (3), a lifting component (4) and a box (5) for placing a bridge deflection measuring device. The support component (2) is arranged at the center of the mounting frame (1) and is used to abut against the ground. The box (5) is rotatably mounted on the lifting component (4) so ​​that the lifting component (4) drives the box (5) to move up and down. The adjustment component (3) is arranged on the lifting component (4) and is used to limit the rotation direction of the box (5). A plurality of heat dissipation ports (6) are provided on the side walls of the box (5), and any two opposite sides are open and hinged with box doors (7).

2. The bridge load deflection measurement auxiliary device according to claim 1 is characterized in that: The lifting assembly (4) comprises an adjusting seat (8) and a connecting seat (9); the adjusting seat (8) is rotatably mounted on the mounting frame (1); a turning handle is formed on the outer wall of the adjusting seat (8) along its circumference; a connecting hole is formed on the adjusting seat (8) along the height direction of the mounting frame (1); and a connecting column (10) for threaded engagement with the connecting hole is formed on the connecting seat (9).

3. The bridge load deflection measurement auxiliary device according to claim 2 is characterized in that: The mounting frame (1) comprises a base (11), and the supporting assembly (2) comprises a supporting column (12) and a base (13); the supporting column (12) is vertically arranged on the base (11); one end of the supporting column (12) is detachably connected to the base (11); a mounting hole (14) is provided at the other end of the supporting column (12); a sliding groove (15) is provided on the hole wall of the mounting hole (14) along the extension direction of the supporting column (12); a telescopic column (16) for extending into the mounting hole (14) is formed on the base (13); a locking member (17) for extending into the sliding groove (15) is detachably installed on the telescopic column (16).

4. The bridge load deflection measurement auxiliary device according to claim 2, characterized in that: The mounting frame (1) comprises a base (11), and the supporting assembly (2) comprises a supporting column (12), a connecting rod and a base (13). The supporting column (12) is vertically arranged on the base (11), and one end of the supporting column (12) is detachably connected to the base (11). The other end of the supporting column (12) is provided with a mounting hole (14), and a sliding groove (15) is provided on the hole wall of the mounting hole (14) along the extension direction of the supporting column (12). The connecting rod is in sliding contact with the mounting hole (14), and one end of the connecting rod is provided with a locking piece (17) for extending into the sliding groove (15), and the other end of the connecting rod extends out of the mounting hole (14) and is spherically hinged with the base (13).

5. The bridge load deflection measurement auxiliary device according to claim 4, characterized in that: A handle (18) is provided on the outer wall of one end of the support column (12) close to the box body (5).

6. The bridge load deflection measurement auxiliary device according to claim 5, characterized in that: The top surface of the connecting seat (9) is provided with a groove (19), the top surface of the groove wall of the groove (19) is in contact with the bottom surface of the box body (5), and a boss (20) for extending into the groove (19) is formed on the bottom surface of the box body (5), the boss (20) is coaxially arranged with the connecting column (10), the top surface of the boss (20) is in contact with the bottom surface of the groove (19), a through hole is provided at the center position of the boss (20), and a locking hole is provided on the bottom surface of the groove (19) at a position corresponding to the through hole, and the box body (5) is mounted on the connecting seat (9) by a locking column (21) penetrating the through hole and the locking hole.

7. The bridge load deflection measurement auxiliary device according to claim 6, characterized in that: The adjustment assembly (3) comprises a ratchet wheel sleeved on the outer wall of the boss (20) and a pawl arranged in the groove (19) for preventing the ratchet wheel from reversing.

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