Strain monitoring device for steel structure
By incorporating a U-shaped plate, guide rod, and shock absorber into the strain monitoring device, combined with a stainless steel protective shell and shock absorber, the problem of damage to the device under external vibration was solved, and the device's vibration reduction effect and measurement accuracy were improved.
Patent Information
- Application Number
- CN202520223460.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Existing strain monitoring devices are prone to damage to internal components under external vibration, resulting in shortened service life and increased maintenance costs.
The design employs a U-shaped plate, guide rod, and shock absorber, combined with a stainless steel protective shell and shock absorbers, to isolate severe external vibrations. It also uses temperature sensors and cooling coils to keep internal components stable and is powered by solar panels and batteries, enhancing the device's vibration damping effect and measurement accuracy.
It effectively isolates external vibrations, protects internal components, extends device life, reduces maintenance costs, and improves measurement accuracy and stability.
Smart Images
Figure CN223741476U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to monitoring device especially uses strain monitoring devices for steel structure. BACKGROUND
[0002] The strain monitoring device for steel structure is a device specially designed for measuring and monitoring the stress and strain changes of steel structures under different working conditions. This device is usually installed on large steel structures such as bridges, buildings, towers, etc. to monitor the structural health in real time or periodically to ensure its safety and stability.
[0003] The existing strain monitoring device has a fixed structure and does not have a damping effect. When external vibrations occur, it is easy to cause damage to the internal components of the device, shorten the service life of the device, and increase the maintenance and replacement costs. SUMMARY
[0004] In order to overcome the low service life of the existing strain monitoring device due to the lack of damping effect, the utility model can provide a strain monitoring device for steel structure.
[0005] The technical scheme is as follows: a strain monitoring device for steel structure, comprising a mounting support, a mounting block and a strain rod, the left and right outer sides of the strain rod are sleeved with mounting blocks, the bottoms of the two mounting blocks are fixedly connected with a plurality of guide rods, the outer sides of each guide rod are slidably connected with a U-shaped plate, a shock absorber is sleeved on the upper part of the outer side of the guide rod, the shock absorber is connected between the U-shaped plate and the mounting block, the bottom of the U-shaped plate is provided with a mounting support, a protective shell is sleeved on the outer side of the middle part of the strain rod, a cable is arranged at the right end of the protective shell, a coil is arranged at the top of the strain rod, the cable and the coil are connected by an electric wire, the cable is connected with a collection instrument, and the collection instrument can energize the coil through the cable.
[0006] Optionally, the protective shell is made of stainless steel.
[0007] Optionally, it further comprises a temperature sensor and a controller, the left part of the inner wall of the rear side of the protective shell is provided with a temperature sensor, the front side of the inner wall of the protective shell is provided with a controller, and the temperature sensor and the controller are electrically connected.
[0008] Optionally, it further comprises a heat sink, a heat conducting column and a refrigeration sheet, the front end of the protective shell is provided with a heat sink, the rear end of the heat sink is provided with a heat conducting column, the heat conducting column penetrates through the protective shell, the rear end of the heat conducting column is provided with a refrigeration sheet, and the refrigeration sheet is electrically connected with the controller.
[0009] Optionally, it further comprises a waterproof sealing ring, the outer sides of the cable and the strain rod are sleeved with a waterproof sealing ring, and the waterproof sealing ring is located at the interface between the protective shell and the cable and the strain rod.
[0010] Optionally, the solar panel and the battery are further included, the solar panel is arranged at the rear end of the protective shell, the battery is arranged at the right part of the inner wall of the rear side of the protective shell, and the solar panel, the temperature sensor and the refrigeration fin are connected with the battery through wires.
[0011] The utility model discloses the beneficial effect is: the utility model discloses U type board, the design of guide rod and shock absorber, the specially-made shock absorber effectively isolates external violent vibration, guarantees the weak deformation of internal strain bar can be accurately transferred simultaneously, can reduce the risk of damage of the component in the device after receiving external vibration impact while guaranteeing the measurement accuracy. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.
[0013] Figure 2 It is the structure schematic diagram of the utility model mounting support, mounting block and U type board.
[0014] Figure 3 It is the structure schematic diagram of the utility model shock absorber and guide rod.
[0015] Figure 4 It is the structure schematic diagram of the utility model protective shell and waterproof seal ring.
[0016] Figure 5 It is the structure schematic diagram of the utility model protective shell inside.
[0017] Figure 6 It is the structure schematic diagram of the utility model radiating fin, heat conduction column and refrigeration fin.
[0018] Mark explanation: 1: mounting support, 2: mounting block, 3: strain bar, 4: protective shell, 5: U type board, 51: guide rod, 52: shock absorber, 6: waterproof seal ring, 7: radiating fin, 71: heat conduction column, 72: refrigeration fin, 8: cable, 9: coil, 10: solar panel, 11: temperature sensor, 12: battery. DETAILED DESCRIPTION
[0019] The embodiment of the utility model is explained below with reference to the drawings.
[0020] A strain monitoring device for steel structure, like Figures 1-5As shown, including the mounting bracket 1, mounting block 2 and strain rod 3, the left end of the strain rod 3 and the right end of the outer side are sleeved with the mounting block 2, the bottom of the two mounting blocks 2 is fixedly connected with four guide rods 51, the outer side of each guide rod 51 is slidably connected with a U-shaped plate 5, the outer side of the guide rod 51 is sleeved with a shock absorber 52, the shock absorber 52 is connected between the U-shaped plate 5 and the mounting block 2, the U-shaped plate 5 is provided with the mounting bracket 1, the outer side of the strain rod 3 is sleeved with a protective shell 4, the protective shell 4 is made of stainless steel material, which can reduce the corrosion and physical damage of the external environment to the internal components, the right end of the protective shell 4 is provided with a cable 8, the top of the strain rod 3 is provided with a coil 9, the cable 8 and the coil 9 are connected by wires, the cable 8 is connected with a collection instrument, and the collection instrument can make the coil 9 energized through the cable 8.
[0021] As shown in Figure 5 It also includes a temperature sensor 11 and a controller, the left part of the inner wall of the back side of the protective shell 4 is provided with the temperature sensor 11, the front side of the inner wall of the protective shell 4 is provided with the controller, the temperature sensor 11 and the controller are electrically connected, the temperature sensor 11 can directly obtain the temperature of the measuring point, and the influence of temperature change on strain measurement can be eliminated through temperature compensation algorithm when calculating the strain value, thereby improving the accuracy of measurement.
[0022] As shown in Figure 6 It also includes a heat sink 7, a heat conducting column 71 and a refrigeration sheet 72, the front end of the protective shell 4 is provided with the heat sink 7, the rear end of the heat sink 7 is provided with the heat conducting column 71, the heat conducting column 71 penetrates through the protective shell 4, the rear end of the heat conducting column 71 is provided with the refrigeration sheet 72, and the refrigeration sheet 72 and the controller are electrically connected. When the temperature sensor 11 detects that the temperature inside the protective shell 4 reaches the preset value, the controller will start the refrigeration sheet 72, the refrigeration sheet 72 will absorb the heat in the protective shell 4, then transmit the heat to the heat sink 7 through the heat conducting column 71, and finally diffuse to the outside, so that the temperature inside the protective shell 4 is reduced. In high temperature weather, it can prevent high temperature from causing damage to electronic components in the device.
[0023] As shown in Figure 4 It also includes a waterproof sealing ring 6, the outer side of the cable 8 and the strain rod 3 is sleeved with the waterproof sealing ring 6, the waterproof sealing ring 6 is located at the interface between the protective shell 4 and the cable 8 and the strain rod 3, and the waterproof sealing ring 6 can prevent water from entering the inside of the protective shell 4, thereby protecting the internal components from being damaged by moisture.
[0024] As shown in Figure 5 It also includes a solar panel 10 and a storage battery 12, the back end of the protective shell 4 is provided with the solar panel 10, the right part of the inner wall of the back side of the protective shell 4 is provided with the storage battery 12, the solar panel 10, the temperature sensor 11 and the refrigeration sheet 72 are connected with the storage battery 12 through wires, and the solar panel 10 and the storage battery 12 can supply power to the temperature sensor 11 and the refrigeration sheet 72.
[0025] The mounting support 1 is fixed on the surface of the steel structure, when the stress of the surface of the steel structure needs to be measured, the cable 8 is connected to the acquisition instrument, then the coil 9 is powered through the acquisition instrument, the coil 9 generates a magnetic field to excite the strain rod 3 to vibrate at low frequency, the vibration generates another magnetic field and is converted into an electric signal by the coil 9, the acquisition instrument can process the electric signal and calculates the corresponding strain value according to the vibration frequency change; when the strain rod 3 is vibrated more violently by external vibration, the energy is transmitted to the U-shaped plate 5 through the mounting support 1, the U-shaped plate 5 is moved upward to press the shock absorber 52, the shock absorber 52 is deformed to absorb and store part of the energy, then the energy is slowly released, so that the vibration amplitude transmitted to the components of the device is weakened, and the components are protected from damage; and because the rigidity of the shock absorber 52 is appropriate, when the coil 9 generates the magnetic field to drive the vibration of the strain rod 3, the shock absorber 52 does not affect the deformation transmission of the strain rod 3.
[0026] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and 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 strain monitoring device for steel structure, comprising a mounting support (1), a mounting block (2) and a strain rod (3), the outer side of the left end and the outer side of the right end of the strain rod (3) are sleeved with the mounting block (2), characterized in that, The bottom of the two installation blocks (2) is fixedly connected with a plurality of guide rods (51), the outer lower part of each guide rod (51) is slidably connected with a U-shaped plate (5), the outer upper part of the guide rod (51) is sleeved with a shock absorber (52), the shock absorber (52) is connected between the U-shaped plate (5) and the installation block (2), the bottom of the U-shaped plate (5) is provided with a mounting support (1), the outer middle part of the strain rod (3) is sleeved with a protective shell (4), the right end of the protective shell (4) is provided with a cable (8), the top middle part of the strain rod (3) is provided with a coil (9), the cable (8) and the coil (9) are connected through wires, the cable (8) is connected with a collection instrument, and the collection instrument can energize the coil (9) through the cable (8).
2. The strain monitoring device for a steel structure according to claim 1, characterized by The protective shell (4) is made of stainless steel.
3. The strain monitoring device for a steel structure according to claim 2, characterized by A temperature sensor (11) is further included, the left part of the inner wall of the rear side of the protective shell (4) is provided with the temperature sensor (11), the front side of the inner wall of the protective shell (4) is provided with a controller, and the temperature sensor (11) and the controller are electrically connected.
4. The strain monitoring device for a steel structure according to claim 3, characterized by A waterproof sealing ring (6) is further included, the outer sides of the cable (8) and the strain rod (3) are sleeved with the waterproof sealing ring (6), and the waterproof sealing ring (6) is located at the interface between the protective shell (4) and the cable (8) and the strain rod (3).
5. The strain monitoring device for a steel structure according to claim 4, wherein A heat dissipation fin (7), a heat conducting column (71) and a refrigeration fin (72) are further included, the front end of the protective shell (4) is provided with the heat dissipation fin (7), the rear end of the heat dissipation fin (7) is provided with the heat conducting column (71), the heat conducting column (71) penetrates through the protective shell (4), the rear end of the heat conducting column (71) is provided with the refrigeration fin (72), and the refrigeration fin (72) is electrically connected with the controller.
6. The strain monitoring device for a steel structure according to claim 5, wherein A solar panel (10) and a storage battery (12) are further included, the rear end of the protective shell (4) is provided with the solar panel (10), the right part of the inner wall of the rear side of the protective shell (4) is provided with the storage battery (12), and the solar panel (10), the temperature sensor (11) and the refrigeration fin (72) are connected with the storage battery (12) through wires.