Vibration sensor mounting device
By designing a vibration sensor mounting device with a sleeve and telescopic assembly, the problems of difficult sensor recovery and poor contact were solved, thereby achieving higher accuracy of monitoring data and lower costs.
Patent Information
- Application Number
- CN202423200118.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In existing technologies, vibration sensors are embedded in the soil and are difficult to recover, resulting in high monitoring costs and inaccurate data. Furthermore, poor contact between the sensor and the soil affects the test results.
Design a vibration sensor installation device, which adopts a sleeve, telescopic component and support structure. The sensor is brought into contact with the soil by the mechanical connection of the telescopic control rod and the support rod, and the position is fixed by rope to ensure stability. The sensor can be easily removed by untying the rope during retrieval.
This approach achieves good contact between the vibration sensor and the soil, ensuring the accuracy of monitoring data while reducing monitoring costs and improving resource utilization efficiency.
Smart Images
Figure CN223513351U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of civil engineering and underground engineering stratum wave velocity testing and vibration monitoring technology, specifically relating to a vibration sensor installation device. Background Technology
[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.
[0003] In modern urban construction and infrastructure renovation, high-intensity vibration load operations, such as dynamic compaction and rotary drilling, can improve the bearing capacity of the foundation, but they also pose a potential threat to surrounding buildings. Under vibration loads, buildings may suffer a series of damages, such as uneven foundation settlement, cracking of structural components, and tilting of walls, which in severe cases can even affect the service life of the building and the safety of residents.
[0004] Vibration monitoring is crucial for assessing the impact of vibrations. Traditionally, surface-mounted sensors have limited detection range and struggle to capture vibrations in deep soil. Current technology involves burying vibration sensors in the soil; however, once buried, these sensors are often difficult to retrieve, increasing monitoring costs and wasting resources. While embedding sleeves can protect the sensors and facilitate retrieval, it often hinders contact between the sensors and the soil, affecting test results. Utility Model Content
[0005] To address the aforementioned problems, this utility model provides a vibration sensor installation device that enables both the retrieval of the vibration sensor and its contact with the soil, thereby solving the problem of inaccurate monitoring data, reducing monitoring costs, and improving resource utilization efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A vibration sensor mounting device includes a sleeve, and a telescopic component, a support component, and a vibration sensor are disposed inside the sleeve.
[0008] The sleeve includes a steel pipe, with a hollow conical cap fixedly connected to the bottom of the steel pipe. A non-removable fixed disc is fixedly installed at the connection between the conical cap and the steel pipe. A detachable fixed disc is movably connected to the top of the steel pipe.
[0009] The telescopic assembly includes a telescopic control rod, which is connected to a support plate via several pairs of support rods; the support plate includes a support plate with a bracket and a support plate without a bracket, and the support plate with a bracket has multiple support members evenly arranged on it, and vibration sensors are installed on the support members;
[0010] Multiple sensor holes are evenly arranged on one side of the steel pipe. The sensor holes correspond to the positions of the support components and the number is the same. Geotextile is used to cover the sensor holes.
[0011] Preferably, the telescopic control rod has several pairs of support rods hinged to its body, and each pair of support rods includes a long support rod and a short support rod arranged symmetrically; all the long support rods or short support rods are arranged on the same side of the telescopic control rod.
[0012] Preferably, the long support rods are all hinged to the support plate without brackets, and the short support rods are all hinged to the support plate with brackets; the angle between all support rods and the telescopic control rod is the same, and the direction of the angle is the same.
[0013] Preferably, a first positioning hole is provided at the center of the non-removable fixed disc, and two slide rails are symmetrically fixed on both sides of the first positioning hole; a second positioning hole is provided at the center of the detachable fixed disc, and multiple fixing rings are evenly arranged on one circular surface of the detachable fixed disc, and two slide rails are also fixed on the other circular surface.
[0014] Preferably, multiple ropes are fixedly installed at the top of the telescopic control rod, with one end of each rope fixed to the top of the telescopic control rod and the other end tied to the fixed ring.
[0015] Preferably, the first positioning hole and the second positioning hole are the same size, and the diameter of the telescopic control rod is smaller than the diameter of the first positioning hole or the second positioning hole; the upper end of the telescopic control rod passes through the second positioning hole and the lower end passes through the first positioning hole.
[0016] Preferably, a rolling pulley is provided at both the bottom and top ends of the support plate, and the rolling pulley can slide on the slide rail; the distance between the two bottom rolling pulleys is equal to the distance between the two slide rails on the non-removable fixed disc.
[0017] Preferably, a baffle is provided at one end of the slide rail; when the rolling pulley contacts the baffle, the vibration sensor contacts the soil.
[0018] Preferably, the length of the conical cap is greater than the length of the telescopic control rod that is not detachably fixed to the bottom of the disc when the rolling pulley contacts the baffle.
[0019] Preferably, the support includes a fixed bracket, which is vertically fixed to the support plate with the bracket. A vibration sensor is fixedly mounted on the fixed bracket, and a flexible strip is provided between the vibration sensor and the support plate with the bracket.
[0020] Compared with the prior art, the advantages and positive effects of this utility model are:
[0021] This invention designs a mechanical device based on the linkage mechanism principle. Using a telescopic control rod as the driving element and a support rod as the driven element, and through mechanical connections such as hinges and linkages, it pushes outwards both the support plate without a bracket and the support plate with a bracket. When the telescopic control rod is pressed down, the support plate with the bracket moves the vibration sensor toward the sensor hole. Under the action of the baffle, the vibration sensor reaches the sensor hole and then comes into contact with the geotextile, ensuring good contact between the vibration sensor and the soil, thereby solving the problem of inaccurate monitoring data. The geotextile also prevents soil from entering the steel pipe.
[0022] This invention utilizes a rope at the top of the telescopic control rod and a fixing ring on a detachable fixing disc to limit the telescopic control rod, preventing it from returning to its original position and ensuring the positional stability of the vibration sensor during operation. During retrieval, the rope is untied, and the telescopic control rod is lifted upwards, causing the support plate to retract and easily separating the vibration sensor from the soil. Simultaneously, the detachable fixing disc is movably connected to the steel pipe, facilitating the removal of the internal telescopic control rod and thus the vibration sensor, achieving recyclability. This not only reduces monitoring costs but also improves resource utilization efficiency. Attached Figure Description
[0023] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.
[0024] Figure 1 This is an overall schematic diagram of the device in a non-working state according to an embodiment of the present invention;
[0025] Figure 2 This is an overall schematic diagram of the working state of the device according to an embodiment of the present utility model;
[0026] Figure 3 This is a schematic diagram of a non-removable fixed disc according to an embodiment of the present utility model;
[0027] Figure 4 This is a schematic diagram of a detachable fixed disc according to an embodiment of the present utility model;
[0028] Figure 5 This is a partial schematic diagram of the connection between the telescopic components in an embodiment of the present invention;
[0029] Figure 6 This is a partial schematic diagram of the connection between the telescopic component and the non-removable fixed disc in an embodiment of this utility model;
[0030] Figure 7 This is a partial schematic diagram of the support member according to an embodiment of the present utility model.
[0031] In the picture:
[0032] 1. Telescopic control rod; 2. Fixed ring; 3. Rope; 4. Detachable fixed disc; 5. Geotextile; 6. Steel pipe; 7. Vibration sensor; 8. Flexible belt; 9. Fixed bracket; 10. Support plate with bracket; 11. Rolling pulley; 12. Non-detachable fixed disc; 13. Support plate without bracket; 14. Support rod; 15. Conical cap. Detailed Implementation
[0033] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0034] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a vibration sensor mounting device, such as... Figure 1 , Figure 2 As shown, the device includes a sleeve, inside which are installed a telescopic assembly, a support, and a vibration sensor 7. Specifically, the sleeve includes a steel pipe 6, which is a hollow cylindrical steel pipe; a hollow conical cap 15 is fixedly connected to the bottom of the steel pipe 6, and a non-removable fixing disc 12 is fixedly installed at the connection between the conical cap 15 and the steel pipe 6. Figure 3 As shown, a first positioning hole is opened at the center of the non-removable fixed disc 12, and slide rails are symmetrically fixed on both sides of the first positioning hole.
[0035] like Figure 1 , Figure 2 , Figure 4 As shown, the sleeve also includes a detachable fixing disc 4. In this embodiment, the diameter of the detachable fixing disc 4 is equal to the outer wall diameter of the steel pipe 6. A second positioning hole is provided at the center of the detachable fixing disc 4. On one circular surface of the detachable fixing disc 4, a plurality of fixing rings 2 are also evenly arranged. In this embodiment, the number of fixing rings 2 is two. On the other circular surface of the detachable fixing disc 4, two slide rails are also provided.
[0036] It should be noted that the detachable fixing disc 4 and the steel pipe 6 can be movably connected using existing technology. For example, symmetrical slots can be provided on the top inner wall of the steel pipe 6, and symmetrical blocks can be provided on the bottom of the detachable fixing disc 4. The size of the blocks is the same as the depth of the slots. When the detachable fixing disc 4 is connected to the steel pipe 6, the blocks are inserted into the slots to prevent the detachable fixing disc 4 from rotating relative to the steel pipe 6. It is understood that the diameters of the first positioning hole and the second positioning hole are the same, and after the detachable fixing disc 4 is installed on the steel pipe 6, the vertical projection of the slide rail on the detachable fixing disc 4 coincides with the slide rail on the non-detachable fixing disc 12. All of the above-mentioned fixed connections can be achieved by welding.
[0037] like Figure 1 , Figure 2 As shown, a plurality of sensor holes are provided on one side of the steel pipe 6, and geotextile 5 is provided to cover the sensor holes. The sensor holes are used for the vibration sensor 7 to contact the soil, and the geotextile 5 is used to prevent soil from entering the steel pipe 6.
[0038] like Figure 1 , Figure 2 As shown, the telescopic assembly includes a telescopic control rod 1, a support rod 14, and a support plate. The diameter of the telescopic control rod 1 is slightly smaller than the diameter of the first positioning hole or the second positioning hole, so that the telescopic control rod 1 can pass through the first positioning hole or the second positioning hole without wobbling. In this embodiment, the diameter of the telescopic control rod 1 is 2mm smaller than the diameter of the first positioning hole or the second positioning hole. The upper end of the telescopic control rod 1 passes through the second positioning hole, and the lower end passes through the first positioning hole. The first positioning hole and the second positioning hole can be used to position and fix the telescopic control rod 1, ensuring that the telescopic control rod 1 is vertical.
[0039] like Figure 1 , Figure 2 , Figure 5 As shown, the telescopic control rod 1 is connected to the support plate via support rods. The support plate is divided into a support plate 10 with a bracket and a support plate 13 without a bracket. Several pairs of support rods 14 are evenly arranged on the rod body of the telescopic control rod 1, with consistent spacing between each pair. Each pair of support rods 14 includes symmetrically arranged long and short support rods, and all support rods are hinged to the telescopic control rod 1. All long support rods are located on the same side of the telescopic control rod 1, and all short support rods are located on the other side. All long support rods are hinged to the support plate 13 without a bracket, and all short support rods are hinged to the support plate 10 with a bracket. It is understood that existing technology can be used for the hinge connection. For example, ear plates can be provided at corresponding positions on the support plate 13 without a bracket, the support plate 10 with a bracket, and the telescopic control rod 1. Ear plates can also be provided at both ends of all support rods. During installation, the hinge is completed by passing a pin through the ear plates. No specific limitation is made on the hinge connection method here.
[0040] like Figure 1 , Figure 2 , Figure 6 As shown, both the support plate 13 without a bracket and the support plate 10 with a bracket have a rolling pulley 11 at both their bottom and top ends. The rolling pulley 11 can slide on the slide rails. It can be understood that the distance between the two bottom rolling pulleys 11 is equal to the distance between the two slide rails on the non-removable fixed disc 12, that is, the distance between the two top rolling pulleys 11 is equal to the distance between the two slide rails on the detachable fixed disc.
[0041] like Figure 2As shown, after assembly, the bottom rolling pulleys 11 of the support plate 13 without bracket and the support plate 10 with bracket are set on the slide rail of the non-removable fixed disc 12, and the top rolling pulleys 11 of the support plate 13 without bracket and the support plate 10 with bracket are set on the slide rail of the detachable fixed disc 4.
[0042] It is understandable that when pulling the telescopic control rod 1 upwards, the operator can step on the top of the detachable fixed disc 4 to prevent the telescopic control rod 1 from being pulled out directly when pulling it up, which could cause the vibration sensor 7 to be damaged by contact with the pipe wall if it is not retracted.
[0043] It is also important to note that, such as Figure 1 , Figure 2 As shown, all the support rods and the telescopic control rod 1 have the same angle and the same direction. The reason for this arrangement is that when the support plate 13 without the bracket and the support plate 10 with the bracket remain stationary in the longitudinal direction, when the telescopic control rod 1 moves in the longitudinal direction, the support plate 13 without the bracket and the support plate 10 with the bracket will move relative to each other in the lateral direction under the action of all the support rods 14, and the rolling pulley 11 can reduce the friction.
[0044] like Figure 1 , Figure 2 As shown, multiple support members are evenly arranged on the side of the support plate 10 with brackets away from the telescopic control rod 1, and the spacing between the support members is equal. Figure 7 As shown, the support includes a fixed bracket 9, which is vertically fixed to the support plate 10 with a bracket. The fixed bracket 9 is used to fix the vibration sensor 7. The surface of the fixed bracket 9 is flat and has a certain rigidity to ensure the stability and accuracy of the vibration sensor 7. A flexible strip 8 is also provided on the fixed bracket 9. The flexible strip 8 is placed between the vibration sensor 7 and the support plate 10 with a bracket to increase the fit and sealing of the contact surface, while protecting the vibration sensor 7 from direct impact. It is understood that the flexible strip 8 is made of an elastic material in the prior art, such as rubber.
[0045] like Figure 1 , Figure 2 , Figure 7 As shown, the fixed bracket 9 is positioned to correspond to the sensor hole, and the size of the sensor hole should be larger than the size of the vibration sensor 7, so as to ensure that the vibration sensor 7 can pass through and directly contact the outer soil.
[0046] like Figure 6As shown, all slide rails have a baffle at one end. This is to ensure that when the telescopic control rod 1 is pressed down, the support plates on both sides of the telescopic control rod 1 can stop moving when the bottom and top rolling pulleys 11 of the support plate 13 without brackets move to the baffle. It is understood that the position of the baffle is set according to the actual situation and is not specifically required, but it must be ensured that when the rolling pulley 11 contacts the baffle, the vibration sensor 7 on the support plate with brackets contacts the soil, but not to the point of being squeezed, to prevent damage to the vibration sensor 7. It is also understood that baffles can be installed at both ends of the slide rail.
[0047] It should also be noted that when the telescopic control rod 1 is pressed down until the bottom and top rolling pulleys 11 of the support plate 13 without brackets touch the baffle, the lower end of the telescopic control rod 1 should still not touch the conical cap 15. That is to say, the length of the conical cap 15 needs to be greater than the length of the telescopic control rod 1 located at the bottom of the non-removable fixed disc 12 when the rolling pulley 11 contacts the baffle.
[0048] like Figure 1 , Figure 2 , Figure 4 As shown, multiple ropes 3 are fixedly installed at the top of the telescopic control rod 1. In this embodiment, there are two ropes 3, which means the number of ropes 3 is the same as the number of fixed rings 2. One end of each rope 3 is fixed to the top of the telescopic control rod 1, and the other end is used to bind it to the fixed ring 2. The purpose is that after the telescopic control rod 1 is pressed down, binding the ropes 3 to the fixed ring 2 prevents the telescopic control rod 1 from returning to its original position, thereby fixing the monitoring position of the vibration sensor 7. In this embodiment, the ropes 3 can be made of metal and fixed to the top of the telescopic control rod 1 by welding. It can be understood that ropes 3 of other materials can also be used and fixed by bolting through holes in the top of the telescopic control rod 1. The material of the ropes 3 and their fixing method are not specifically limited here.
[0049] Assembly of the device:
[0050] Hinge the telescopic control rod 1 to one end of the long or short support rod to ensure relative rotation while maintaining a certain connection strength; hinge the other end of the long support rod to the support plate 13 without bracket, and hinge the other end of the short support rod to the support plate 10 with bracket.
[0051] Next, a fixing bracket 9 is installed on the support plate 10 with bracket, and the vibration sensor 7 is fixed on the fixing bracket 9. At the same time, the flexible strip 8 is placed between the vibration sensor 7 and the support plate 10 with bracket by an appropriate fixing method (such as glue, clip or sewing).
[0052] Next, a sensor hole is made in the steel pipe 6, and the telescopic control rod 1 with the vibration sensor 7 installed is placed inside the steel pipe 6. Then, the support plate 10 with bracket and the support plate 13 without bracket are connected to the non-removable fixed disc 12. After the lower end of the telescopic control rod 1 passes through the first positioning hole, the rolling pulley 11 is placed in the slide rail. Then, the non-removable fixed disc 12 is fixed to the steel pipe 6, and the conical cap 15 is fixed.
[0053] Finally, the detachable fixed disc 4 is connected to the steel pipe 6 by a buckle to form a complete lowering device.
[0054] Working principle:
[0055] Drilling is carried out using a drilling rig. The depth and diameter of the hole are controlled according to the design requirements of the steel pipe 6. Generally, the hole diameter needs to be larger than the diameter of the steel pipe 6, and the depth needs to ensure that the upper end of the telescopic control rod 1 protrudes above the ground surface. When drilling, attention should be paid to maintaining the verticality and flatness of the hole wall. After drilling is completed, hole cleaning is carried out to ensure the smooth sinking of the steel pipe 6.
[0056] The assembled device is lowered and installed using either the pipe jacking method or the pipe sinking method to ensure the verticality and stability of the steel pipe 6. Although a slightly larger borehole diameter facilitates lowering, it will cause gaps between the device and the soil, affecting stability, the accuracy of monitoring data, and potentially causing soil loss. These gaps are filled with sand.
[0057] By operating the telescopic control lever 1 on the ground surface (such as pressing down), the support plate 10 with brackets is pushed outward until the rolling pulley 11 hits the baffle, thereby causing the vibration sensor 7 to adhere to the geotextile 5 and contact the soil; then the rope 3 is connected to the fixed ring 2.
[0058] Vibration sensor 7 is in operation.
[0059] After confirming that the monitoring task is completed, untie rope 3, lift telescopic control rod 1 upward, so that the support plate 10 with bracket that was originally stretched outward begins to retract inward, so that vibration sensor 7 can be easily separated from the soil; after lifting the whole device, remove the detachable fixing disc 4 from the steel pipe 6, and then take out the telescopic control rod 1 with vibration sensor 7.
[0060] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.
Claims
1. A vibration sensor mounting device, characterized in that, It includes a sleeve, and the sleeve is equipped with a telescopic component, a support component, and a vibration sensor; The sleeve includes a steel pipe, with a hollow conical cap fixedly connected to the bottom of the steel pipe. A non-removable fixed disc is fixedly installed at the connection between the conical cap and the steel pipe. A detachable fixed disc is movably connected to the top of the steel pipe. The telescopic assembly includes a telescopic control rod, which is connected to a support plate via several pairs of support rods; the support plate includes a support plate with a bracket and a support plate without a bracket, and the support plate with a bracket has multiple support members evenly arranged on it, and vibration sensors are installed on the support members; Multiple sensor holes are evenly arranged on one side of the steel pipe. The sensor holes correspond to the positions of the support components and the number is the same. Geotextile is used to cover the sensor holes.
2. The vibration sensor mounting device as described in claim 1, characterized in that, The telescopic control rod has several pairs of support rods hinged to its body, and each pair of support rods includes a long support rod and a short support rod arranged symmetrically; all the long support rods or short support rods are arranged on the same side of the telescopic control rod.
3. The vibration sensor mounting device as described in claim 2, characterized in that, The long support rods are all hinged to the support plate without brackets, and the short support rods are all hinged to the support plate with brackets; the angle between all support rods and the telescopic control rod is the same, and the direction of the angle is the same.
4. The vibration sensor mounting device as described in claim 1, characterized in that, The non-removable fixed disc has a first positioning hole at its center, and two slide rails are symmetrically fixed on both sides of the first positioning hole; the detachable fixed disc has a second positioning hole at its center, and multiple fixing rings are evenly arranged on one circular surface of the detachable fixed disc, and two slide rails are also fixed on the other circular surface.
5. The vibration sensor mounting device as described in claim 4, characterized in that, Multiple ropes are fixedly installed at the top of the telescopic control rod, with one end of each rope fixed to the top of the telescopic control rod and the other end tied to the fixed ring.
6. The vibration sensor mounting device as described in claim 4, characterized in that, The first positioning hole and the second positioning hole are the same size, and the diameter of the telescopic control rod is smaller than the diameter of the first positioning hole or the second positioning hole; the upper end of the telescopic control rod passes through the second positioning hole and the lower end passes through the first positioning hole.
7. The vibration sensor mounting device as described in claim 4, characterized in that, The support plate is provided with a rolling pulley at both the bottom and top ends, and the rolling pulley can slide on the slide rail; the distance between the two rolling pulleys at the bottom is equal to the distance between the two slide rails on the non-removable fixed disc.
8. The vibration sensor mounting device as described in claim 7, characterized in that, A baffle is provided at one end of the slide rail; when the rolling pulley contacts the baffle, the vibration sensor contacts the soil.
9. A vibration sensor mounting device as described in claim 8, characterized in that, The length of the conical cap is greater than the length of the telescopic control rod at the bottom of the non-removable fixed disc when the rolling pulley contacts the baffle.
10. A vibration sensor mounting device as described in claim 1, characterized in that, The support includes a fixed bracket, which is vertically fixed to the support plate with the bracket. A vibration sensor is fixedly mounted on the fixed bracket, and a flexible strip is provided between the vibration sensor and the support plate with the bracket.