Bridge amplitude detection device

Abstract

The application relates to a bridge amplitude detection device, which comprises a supporting mechanism, a first surface and a second surface arranged on the two sides of the supporting mechanism respectively, a vibration detection mechanism arranged on the first surface, and a fixing mechanism fixed on the second surface, wherein the fixing mechanism has a working state and an initial state arranged oppositely, the fixing mechanism is adsorbed on a bridge when the fixing mechanism is in the working state, and the fixing mechanism is disconnected with the bridge when the fixing mechanism is in the initial state. Through the technical scheme, the problem of low vibration detection mechanism installation efficiency in the related art can be solved.

Description

Technical Field

[0001] This application relates to the field of bridge amplitude detection device technology, and in particular to bridge amplitude detection device. Background Technology

[0002] Railway steel truss bridges vibrate under the dynamic load of trains. Excessive amplitude can lead to structural fatigue damage, loosening of connectors, and even affect train operation safety. Therefore, amplitude testing is necessary to assess the dynamic response of the bridge and ensure that it remains within a safe operating range.

[0003] In related technologies, vibration detection mechanisms such as vibration pickups are typically used to collect vibration signals. Due to the special characteristics of railway bridges, vibration detection mechanisms need to be quickly installed and fixed during train intervals. These technologies usually use mixtures such as putty or plaster powder to adhere the vibration detection mechanism to the bridge surface to ensure that the vibration detection mechanism vibrates synchronously with the bridge.

[0004] However, when using putty or plaster powder for bonding, the bonding material needs to be mixed on-site, the mixture is applied to the vibration detection mechanism and the bridge, and then the vibration detection mechanism is pasted onto the bridge. This operation is cumbersome, takes up train interval time, reduces the installation efficiency of the vibration detection mechanism, and increases the operational risk. Utility Model Content

[0005] Therefore, it is necessary to provide a bridge amplitude detection device to address the problem of low installation efficiency of vibration detection mechanisms in related technologies.

[0006] A bridge amplitude detection device, comprising:

[0007] A support mechanism, with a first surface and a second surface respectively on both sides;

[0008] Vibration detection mechanism, the vibration detection mechanism is located on the first side;

[0009] The fixing mechanism is fixed to the second side. The fixing mechanism has a working state and an initial state with relative settings. When the fixing mechanism is in the working state, it is attached to the bridge. When the fixing mechanism is in the initial state, it is disconnected from the bridge.

[0010] In one embodiment, the bridge amplitude detection device further includes:

[0011] The pressure detection mechanism is located on the second side. When the fixing mechanism is attached to the bridge, the pressure detection mechanism comes into contact with the bridge to detect the adsorption force between the fixing mechanism and the bridge.

[0012] The alarm mechanism is connected to the pressure detection mechanism and can trigger an alarm based on signals from the pressure detection mechanism.

[0013] In one embodiment, the pressure detection mechanism includes:

[0014] An elastic element, one end of which is fixedly connected to the second surface;

[0015] The pressure detection element is fixedly connected to the other end of the elastic element, and the pressure detection element is communicatively connected to the alarm mechanism.

[0016] When the fixing mechanism is attached to the bridge, the elastic element is compressed, and the pressure detection element comes into contact with the bridge.

[0017] In one embodiment, the vibration detection mechanism includes a plurality of vibration pickups, at least two of which have an angle between their detection directions, and the vibration pickups are threadedly connected to the support mechanism via a first fastener.

[0018] In one embodiment, the support mechanism includes multiple support members connected sequentially along a first direction, the positions of two adjacent support members are adjustable along the first direction, and vibration pickups are provided on at least two support members.

[0019] In one embodiment, the support mechanism includes:

[0020] The first support member has a connecting groove and a guide hole that are interconnected, and the guide hole extends along a first direction.

[0021] The second support member has a connecting protrusion with a fixing hole and is slidably disposed in the connecting groove along the first direction.

[0022] The locking element securely connects the guide hole and the fixing hole.

[0023] In one embodiment, the fixing mechanism includes a plurality of switchable strong magnets, which are spaced apart on the second surface and are threadedly connected to the support mechanism via a second fastener.

[0024] In one embodiment, the support mechanism includes:

[0025] The support platform includes a first surface and a second surface.

[0026] The support section is located on the first side.

[0027] In one embodiment, the bridge amplitude detection device further includes:

[0028] The protective mechanism is installed on the outside of the vibration detection mechanism, and the protective mechanism is detachably connected to the support mechanism.

[0029] In one embodiment, the support structure is made of stainless steel.

[0030] The aforementioned bridge amplitude detection device is placed vertically on the bridge, with the fixing mechanism in contact with the bridge. Switching the fixing mechanism from its initial state to its working state allows the bridge amplitude detection device to adhere to the bridge, enabling the vibration detection mechanism to detect the bridge's amplitude. This setup simplifies installation; workers only need to switch the fixing mechanism to the working state. It also allows for quick and precise adjustments to the vibration detection mechanism, improving installation efficiency and shortening work time. Furthermore, it reduces the time workers spend on the bridge, minimizing delays to railway transportation caused by installation work, reducing safety hazards, and ensuring personal safety. The fixing mechanism also prevents the vibration detection mechanism from becoming unstable due to environmental temperature factors, thus improving the accuracy of bridge test data. Finally, this structure effectively reduces manpower input, alleviates the safety pressure on workers avoiding trains, and lowers construction costs. Attached Figure Description

[0031] Figure 1 This is a top view of the bridge amplitude detection device;

[0032] Figure 2 for Figure 1 Front view of the device shown;

[0033] Figure 3 This is a side view of a bridge amplitude detection device;

[0034] Figure 4 This is a schematic diagram of the structure in which the vibration detection mechanism and the support platform work together.

[0035] Figure 5 This is a schematic diagram of the structure in which the first support member and the second support member mate.

[0036] Figure 6 A schematic diagram of the protective mechanism.

[0037] Explanation of reference numerals in the attached figures:

[0038] 10. Supporting structures;

[0039] 11. Supporting platform; 111. First side; 112. Second side;

[0040] 113. First support member; 1131. Connecting groove; 1132. Guide hole;

[0041] 114. Second support member; 1141. Connecting protrusion; 1142. Fixing hole;

[0042] 115. Limiting groove;

[0043] 12. Lifting part;

[0044] 20. Vibration detection mechanism; 21. Vibration pickup;

[0045] 30. Fixed mechanism; 31. Switch-type strong magnet;

[0046] 40. Pressure testing mechanism; 41. Elastic element; 42. Pressure testing component; 43. Support plate;

[0047] 50. Protective mechanism; 51. Limiting protrusion. Detailed Implementation

[0048] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0049] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0050] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0053] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0054] See Figures 1 to 3 A bridge vibration detection device includes a support mechanism 10, a vibration detection mechanism 20, and a fixing mechanism 30. The support mechanism 10 has a first surface 111 and a second surface 112 on its two sides. The vibration detection mechanism 20 is located on the first surface 111. The fixing mechanism 30 is fixed to the second surface 112. The fixing mechanism 30 has a working state and an initial state, respectively. When the fixing mechanism 30 is in the working state, it is attached to the bridge; when the fixing mechanism 30 is in the initial state, it is disconnected from the bridge.

[0055] By applying the technical solution of this application, the bridge amplitude detection device is placed vertically on the bridge, with the fixing mechanism 30 in contact with the bridge. Switching the fixing mechanism 30 from its initial state to its working state allows the bridge amplitude detection device to adhere to the bridge, enabling the vibration detection mechanism 20 to detect the bridge's amplitude. This setup simplifies installation; workers only need to switch the fixing mechanism 30 to its working state. It also allows for quick and precise adjustments to the vibration detection mechanism 20, improving installation efficiency and shortening operation time. Furthermore, it reduces the time workers spend on the bridge, minimizing delays in railway transportation caused by installation work, reducing safety hazards, and ensuring personal safety. The fixing mechanism 30 also prevents the vibration detection mechanism 20 from becoming unstable due to environmental temperature factors, thus improving the accuracy of bridge test data. Finally, this structure effectively reduces manpower input, alleviates the safety pressure on workers avoiding trains, and lowers construction costs.

[0056] See Figure 2 The bridge amplitude detection device also includes a pressure detection mechanism 40 and an alarm mechanism. The pressure detection mechanism 40 is located on the second surface 112. When the fixing mechanism 30 is attached to the bridge, the pressure detection mechanism 40 comes into contact with the bridge to detect the adhesion force between the fixing mechanism 30 and the bridge. The alarm mechanism is communicatively connected to the pressure detection mechanism 40 and can sound an alarm based on the signal from the pressure detection mechanism 40. This configuration allows the pressure detection mechanism 40 to constantly monitor the adhesion force between the fixing mechanism 30 and the bridge, ensuring a tight fit between the fixing mechanism 30 and the bridge surface. The alarm mechanism is linked to the pressure detection mechanism 40, providing timely warnings when the adhesion force is insufficient or the fixing fails, preventing data distortion due to loose fixing mechanism 30 or the risk of the bridge amplitude detection device falling, thus improving the reliability of the bridge amplitude detection device.

[0057] In some embodiments, the alarm mechanism includes a control module and an alarm. The control module is communicatively connected to the alarm and the pressure detection mechanism 40. When the adsorption force of the pressure detection mechanism 40 is lower than a set threshold, the alarm mechanism can notify the staff through audible and visual alarms, wireless signal transmission, or vibration alerts, so that they can take remedial measures quickly.

[0058] Specifically, the pressure detection mechanism 40 includes an elastic element 41 and a pressure detection element 42. One end of the elastic element 41 is fixedly connected to the second surface 112. The pressure detection element 42 is fixedly connected to the other end of the elastic element 41 and is communicatively connected to the alarm mechanism. When the fixing mechanism 30 is attached to the bridge, the elastic element 41 is compressed, and the pressure detection element 42 comes into contact with the bridge. This configuration ensures that when the fixing mechanism 30 is attached to the bridge, the compression deformation of the elastic element 41 is converted into a continuous force on the pressure detection element 42, thereby ensuring the real-time performance and accuracy of the pressure measurement. Furthermore, the elastic element 41 provides a flexible buffering effect when the fixing mechanism 30 is attached to the bridge, avoiding potential damage to the bridge surface caused by rigid contact.

[0059] In some embodiments, the pressure detection mechanism 40 further includes a support plate 43, which is fixedly connected to the other end of the elastic member 41, and the pressure detection member 42 is disposed on the support plate 43. This arrangement facilitates the fixing of the pressure detection member 42.

[0060] See Figure 4 The vibration detection mechanism 20 includes multiple vibration pickups 21, with at least two pickups 21 having an angle between their detection directions. The pickups 21 are threadedly connected to the support mechanism 10 via a first fastener. This arrangement, with at least two pickups 21 in different detection directions, enables the capture of bridge vibrations in multiple directions, improving the reliability of the vibration detection data from the vibration detection mechanism 20.

[0061] In some embodiments, the vibration detection mechanism 20 includes two vibration pickups 21, one of which extends vertically to detect the vertical acceleration of the bridge, and the other of which extends horizontally to detect the lateral amplitude of the bridge.

[0062] In some embodiments, the first fastener is a bolt, and the vibration pickup 21 is rigidly connected to the support mechanism 10, saving time for on-site installation of the vibration pickup 21.

[0063] Furthermore, the support mechanism 10 includes multiple support members connected sequentially along a first direction. The positions of adjacent support members are adjustable along the first direction, and vibration pickups 21 are provided on at least two support members. (See also...) Figure 1 The first direction is the X direction. With this setting, workers can freely combine the number of support components according to the specific width of the bridge, thereby improving the applicability of the support mechanism 10 and expanding its application range.

[0064] See Figure 5The support mechanism 10 includes a first support member 113, a second support member 114, and a locking member. The first support member 113 has a connecting groove 1131 and a guide hole 1132 that communicate with each other, the guide hole 1132 extending along a first direction. The second support member 114 has a connecting protrusion 1141 with a fixing hole 1142, and the connecting protrusion 1141 is slidably disposed within the connecting groove 1131 along the first direction. The guide hole 1132 and the fixing hole 1142 are fixedly connected by the locking member. This configuration allows the connecting groove 1131 to guide the connecting protrusion 1141, ensuring a smooth and stable adjustment process. Furthermore, the guide hole 1132 on the first support member 113 facilitates the connection between the first support member 113 and the second support member 114, resulting in a simple structure and facilitating the processing of the first and second support members 113 and 114. Meanwhile, locking components are used to facilitate the fixing of the first support member 113 and the second support member 114.

[0065] In some embodiments, a vibration pickup 21 is provided on both the first support member 113 and the second support member 114.

[0066] In some embodiments, the locking elements are bolts and nuts.

[0067] See Figure 2 The fixing mechanism 30 includes multiple switchable strong magnets 31, which are spaced apart on the second surface 112. The switchable strong magnets 31 are threadedly connected to the support mechanism 10 via second fasteners. This configuration creates a rigid connection between the switchable strong magnets 31 and the support mechanism 10, ensuring a tight connection between the switchable strong magnets 31 and the bridge. This allows the support mechanism 10 to be securely and quickly installed on the bridge, ensuring the accuracy of data transmission by the vibration pickup 21, improving the precision of test data, and effectively analyzing the bridge's condition.

[0068] In related technologies, the use of modeling clay or plaster powder for bonding often results in poor adhesion or improper mixing, leading to excessive time spent on the line by workers. Furthermore, modeling clay or plaster is prone to softening or becoming brittle due to temperature, causing poor contact between the vibration pickup 21 and the beam body, thus affecting data accuracy.

[0069] However, in this application, the use of a switchable strong magnet 31 can ensure the stability of the connection between the fixing mechanism 30 and the bridge, and the switching of the strong magnet 31 can switch between the initial state and the working state by turning the switchable strong magnet 31.

[0070] See Figure 3The support mechanism 10 includes a support platform 11 and a lifting part 12. The support platform 11 includes a first surface 111 and a second surface 112. The lifting part 12 is located on the first surface 111. This arrangement facilitates the movement of the support mechanism 10 by the operator, further reducing the difficulty of operation.

[0071] In some embodiments, a CNC lathe is used on the support platform 11 to machine bolt holes.

[0072] In some embodiments, the lifting part 12 is a handle, and the corners of the lifting part 12 are rounded.

[0073] See Figure 6 The bridge vibration detection device also includes a protection mechanism 50. The protection mechanism 50 is installed on the outside of the vibration detection mechanism 20 and is detachably connected to the support mechanism 10. This design reduces external damage to the vibration detection mechanism 20, such as preventing rainwater from eroding it, thereby extending its service life and reducing maintenance costs.

[0074] In some embodiments, the protection mechanism 50 is provided with a limiting protrusion 51, the support platform 11 is provided with a limiting groove 115, the limiting protrusion 51 is disposed in the limiting groove 115, and the protection mechanism 50 is threadedly connected to the support platform 11.

[0075] In some embodiments, the protective mechanism 50 is a cover structure.

[0076] In some embodiments, workers can process various models of protective mechanisms 50.

[0077] The support mechanism 10 is made of stainless steel. This design prevents deformation or corrosion of the support mechanism 10, extends its service life, and avoids wear during assembly and disassembly, ensuring the reliability of the connection between the support mechanism 10 and other structures.

[0078] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A bridge amplitude detection device, characterized in that, The bridge amplitude detection device includes: A support mechanism (10) is provided with a first surface (111) and a second surface (112) on both sides of the support mechanism (10). Vibration detection mechanism (20), the vibration detection mechanism (20) is disposed on the first surface (111); A fixing mechanism (30) is fixed on the second surface (112). The fixing mechanism (30) has a working state and an initial state that are set relative to each other. When the fixing mechanism (30) is in the working state, the fixing mechanism (30) is attached to the bridge. When the fixing mechanism (30) is in the initial state, the fixing mechanism (30) is disconnected from the bridge.

2. The bridge amplitude detection device according to claim 1, characterized in that, The bridge amplitude detection device also includes: A pressure detection mechanism (40) is disposed on the second surface (112). When the fixing mechanism (30) is adsorbed on the bridge, the pressure detection mechanism (40) abuts against the bridge to detect the adsorption force between the fixing mechanism (30) and the bridge. An alarm mechanism is communicatively connected to the pressure detection mechanism (40), and the alarm mechanism can sound an alarm based on the signal from the pressure detection mechanism (40).

3. The bridge amplitude detection device according to claim 2, characterized in that, The pressure detection mechanism (40) includes: An elastic element (41) is fixedly connected at one end to the second surface (112); Pressure detection element (42), the pressure detection element (42) is fixedly connected to the other end of the elastic element (41), and the pressure detection element (42) is communicatively connected to the alarm mechanism; When the fixing mechanism (30) is attached to the bridge, the elastic element (41) is compressed and the pressure detection element (42) comes into contact with the bridge.

4. The bridge amplitude detection device according to claim 1, characterized in that, The vibration detection mechanism (20) includes a plurality of vibration pickups (21), at least two of the vibration pickups (21) having an angle between their detection directions, and the vibration pickups (21) being threadedly connected to the support mechanism (10) by a first fastener.

5. The bridge amplitude detection device according to claim 4, characterized in that, The support mechanism (10) includes multiple support members, which are connected sequentially along a first direction. The positions of two adjacent support members are adjustable along the first direction, and the vibration pickups (21) are provided on at least two of the support members.

6. The bridge amplitude detection device according to claim 5, characterized in that, The support mechanism (10) includes: A first support member (113) is provided with a connecting groove (1131) and a guide hole (1132) that communicate with each other, and the guide hole (1132) extends along the first direction; The second support member (114) is provided with a connecting protrusion (1141), and the connecting protrusion (1141) is provided with a fixing hole (1142). The connecting protrusion (1141) is slidably disposed in the connecting groove (1131) along the first direction. The locking member is used to fix the guide hole (1132) and the fixing hole (1142) together.

7. The bridge amplitude detection device according to claim 1, characterized in that, The fixing mechanism (30) includes a plurality of switchable strong magnets (31), which are spaced apart on the second surface (112). The switchable strong magnets (31) are threadedly connected to the support mechanism (10) by a second fastener.

8. The bridge amplitude detection device according to claim 1, characterized in that, The support mechanism (10) includes: Support platform (11), the support platform (11) includes a first surface (111) and a second surface (112); A support part (12) is provided on the first surface (111).

9. The bridge amplitude detection device according to claim 1, characterized in that, The bridge amplitude detection device also includes: The protective mechanism (50) is covered on the outside of the vibration detection mechanism (20), and the protective mechanism (50) is detachably connected to the support mechanism (10).

10. The bridge amplitude detection device according to claim 1, characterized in that, The support mechanism (10) is made of stainless steel.

Images