Installation device for sensor on curved surface tunnel segment

Abstract

The utility model provides a sensor mounting device on a curved surface tunnel segment, and relates to the technical field of tunnel engineering monitoring. The device comprises a pair of supporting assemblies, the supporting assemblies are used for being detachably connected with pipe pieces, and each supporting assembly comprises at least one supporting rod; the clamping pieces are movably connected to the supporting rod, and the ends of the clamping pieces are used for abutting against the two sides of the sensor; the cushion layers are arranged between the end parts of the clamping pieces and the sensors; and the thermosetting bonding layer is arranged between the sensor and the duct piece and is used for fixing the sensor on the duct piece after curing. Through the supporting assembly, the clamping piece and the cushion layer, the sensor can be temporarily fixed based on the needed installation angle, and then the sensor is fixed through the thermosetting bonding layer. The device is simple, reliable and universal, can be applied to tunnel segments with different curved surfaces, and is suitable for mounting the sensor at any mounting angle.

Description

Technical Field

[0001] This utility model relates to the field of tunnel engineering monitoring technology, and in particular to a sensor installation device on curved tunnel segments. Background Technology

[0002] Monitoring the condition of tunnel segments is a crucial means of ensuring structural safety during tunnel construction and operation. For example, accelerometers need to be installed at specific angles on the inner wall of the tunnel segments to accurately monitor the vibration characteristics and dynamic response of the tunnel structure, ensuring the safety of the tunnel during construction or operation.

[0003] However, tunnel segments are usually curved, while most sensors have a flat contact surface, making it difficult to install them at the required angle and causing measurement errors.

[0004] Currently, in construction, specially designed sensors are usually required to install at the required angle. These sensors are expensive and cannot fully adapt to tunnel segments with different curvatures, nor can they achieve arbitrary installation angles according to the measurement scheme. Utility Model Content

[0005] To address the technical problems of existing technologies that typically require specially designed sensors for installation at the desired angle, resulting in high costs and limitations in adapting to tunnel segments with varying curvatures and achieving arbitrary installation angles based on measurement schemes, this invention provides a sensor installation device for curved tunnel segments. The technical solution is as follows:

[0006] A sensor mounting device for curved tunnel segments is provided, the device comprising:

[0007] A pair of support assemblies for detachably connecting segments, the support assemblies including at least one support rod;

[0008] A pair of clamping members, the clamping members being movably connected to the support rod, and the ends of the pair of clamping members being used to abut against both sides of the sensor;

[0009] A pair of pads, the pads being disposed between the end of the clamp and the sensor;

[0010] A thermosetting adhesive layer is disposed between the sensor and the tube sheet, and is used to fix the sensor to the tube sheet after curing.

[0011] Optionally, the clamping member is a fixed rod;

[0012] The fixing rod is threadedly connected to the support rod.

[0013] Optionally, the clamping member is an elastic member;

[0014] One end of the elastic element is fixed to the support rod, and the other end abuts against the sensor.

[0015] Optionally, the support assembly includes at least three support rods, and adjacent support rods are connected by connectors.

[0016] Optionally, the connector is provided with an elongated hole, and the support rod is provided with a corresponding through hole, and the elongated hole and the through hole are connected by bolts.

[0017] Optionally, the support assembly further includes: adhesive pads corresponding to each of the support rods, the adhesive pads being disposed between the support rods and the tubular segments.

[0018] Optionally, the area of ​​the pad is larger than the end area of ​​the clamping member.

[0019] Optionally, the padding layer is a variable thickness inclined pad.

[0020] Optionally, the padding layer has anti-slip textures on both sides.

[0021] Optionally, the thermosetting adhesive layer is epoxy resin.

[0022] The beneficial effects of the technical solution provided by this utility model embodiment include at least the following:

[0023] This utility model provides a sensor mounting device for curved tunnel segments. By employing a support assembly, clamping components, and a padding layer, it can temporarily fix the sensor at the desired installation angle, creating a certain gap between the sensor and the tunnel segment. A thermosetting adhesive material is injected into this gap, and after curing, a thermosetting adhesive layer is formed, securing the sensor. The support assembly, clamping components, and padding layer can then be removed. This device is simple, reliable, and versatile, applicable to various curved tunnel segments, and suitable for installing sensors at any angle. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a sensor mounting device on a curved tunnel segment provided in an embodiment of this utility model;

[0026] Figure 2 This is an exploded view of a sensor mounting device on a curved tunnel segment provided in an embodiment of this utility model;

[0027] Figure 3 This is a schematic diagram of the use of a sensor mounting device on a curved tunnel segment provided in an embodiment of this utility model.

[0028] Figure label:

[0029] 1. Support rod; 2. Adhesive pad; 3. Clamping component; 4. Connector; 5. Bolt; 6. Pad layer; 7. Sensor; 8. Thermosetting adhesive layer; 9. Tube segment. Detailed Implementation

[0030] The technical solution of this utility model will now be described with reference to the accompanying drawings.

[0031] In the embodiments of this utility model, words such as "exemplarily" and "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" in this utility model should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the word "exemplary" is intended to present the concept in a concrete manner. Furthermore, in the embodiments of this utility model, the meaning expressed by "and / or" can be both, or it can be either one or the other.

[0032] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0033] Please see Figures 1 to 3 This utility model provides a sensor mounting device on a curved tunnel segment. This device assists in the installation of the sensor 7, and after the sensor 7 is fixed, most of the structure is removed, saving space and allowing for reuse. The device includes: a pair of support components, a pair of clamping members 3, a pair of pads 6, and a thermosetting adhesive layer 8.

[0034] The aforementioned pair of support assemblies are used for detachably connecting the tube segment 9. Each support assembly includes at least one support rod 1, one end of which is detachably connected to the tube segment 9. Specifically, the connection can be made by detachable means such as bonding, riveting, or threaded connection; this embodiment does not limit this to any particular method. The support rod 1 is used to provide a fixing base for the clamping member 3 and the sensor 7.

[0035] The aforementioned clamping member 3 is movably connected to the support rod 1, and the ends of a pair of clamping members 3 are used to abut against both sides of the sensor 7.

[0036] When using this device to fix the sensor 7 onto the tube segment 9, the support assembly can be fixed onto the tube segment 9 first, and then the sensor 7 can be placed between a pair of clamping parts 3. After adjusting the installation position and angle of the sensor 7, the clamping parts 3 can be moved inward so that the two ends of the pair of clamping parts 3 abut against the sensor 7, which can temporarily fix the sensor 7. At this time, a certain gap is formed between the sensor 7 and the tube segment 9.

[0037] The pad 6 is disposed between the end of the clamping member 3 and the sensor 7 to prevent the clamping member 3 from causing wear on the sensor 7.

[0038] The thermosetting adhesive layer 8 is disposed between the sensor 7 and the tube 9, and is used to fix the sensor 7 to the tube 9 after curing.

[0039] After temporarily fixing the sensor 7 using the support assembly and clamp 3, thermosetting adhesive material is injected into the gap between the sensor 7 and the tube 9. After curing, a thermosetting adhesive layer 8 is formed, which serves to fix the sensor 7. Then, retaining the thermosetting adhesive layer 8 and the sensor 7, the support assembly, clamp 3, and pad 6 can be removed. The sensor 7 can be selected as needed; for example, it can be an accelerometer.

[0040] The sensor mounting device for curved tunnel segments provided by this utility model, using a support assembly, clamping member 3, and padding layer 6, can temporarily fix the sensor 7 at the required installation angle, forming a certain gap between the sensor 7 and the tunnel segment 9. A thermosetting adhesive material is injected into the gap between the sensor 7 and the tunnel segment 9, and after curing, a thermosetting adhesive layer 8 is formed, which can fix the sensor 7. Afterwards, the support assembly, clamping member 3, and padding layer 6 can be removed. This device is simple, reliable, and versatile, applicable to different curved tunnel segments 9, and suitable for installing the sensor 7 at any installation angle.

[0041] This device is easy to operate, improves the accuracy and reliability of tunnel monitoring data, and is suitable for tunnel segments with various curvatures.

[0042] In one embodiment of this invention, the clamping member 3 is a fixed rod; the fixed rod is threadedly connected to the support rod 1. By rotating the fixed rod on a pair of support rods 1, the fixed rod can be moved inwards and outwards, thereby temporarily clamping the sensor 7. After further adjusting the installation position and angle of the sensor 7, the fixed rod can be rotated again to tighten the sensor 7. Based on the threaded connection, the clamping force of the fixed rod on the sensor 7 can be adjusted to accommodate sensors 7 of different sizes and to achieve installation of sensors 7 at different angles. Furthermore, the fixed rod can be made of stainless steel to ensure strength and corrosion resistance.

[0043] In one embodiment of this invention, the clamping member 3 is an elastic member; one end of the elastic member is fixed to the support rod 1, and the other end abuts against the sensor 7. This elastic member is elastic; by compressing the elastic member on a pair of support rods 1, installation space can be created, the sensor 7 can be placed within the installation space, and after adjusting the installation position and angle of the sensor 7, the elastic member is released to extend and clamp the sensor 7. For example, the elastic member can be a spring.

[0044] In one embodiment of this invention, the support assembly includes at least three support rods 1, with adjacent support rods 1 connected by connectors 4. A stable rectangular frame is formed between two adjacent support rods 1, the connectors 4, and the tunnel segment 9, which can adapt to the surface of the tunnel segment 9 with different curvatures. Since the support assemblies are arranged in pairs, there are at least four such rectangular frames in this structure, collectively ensuring the stability of the support rods 1 connected to the clamping member 3.

[0045] For example, the support rods 1 are made of stainless steel or aluminum alloy, with three support rods 1 in each row, connected by connectors 4 and bolts 5 to form two parallel rows, creating a stable rectangular frame around the sensor 7. The length and spacing of the support rods 1 can be adjusted according to the size of the sensor 7 and the curvature of the tube 9.

[0046] Furthermore, in one embodiment of this utility model, the connector 4 is provided with an elongated hole, and the support rod 1 is provided with a corresponding through hole. The elongated hole and the through hole are connected by bolts 5. Based on this connection structure, the connector 4 and the support rod 1 form a stable rectangular frame. Due to the elongated hole, the relative position of the connector 4 and the support rod 1 can be adjusted to better match the curvature of the tube segment 9.

[0047] Specifically, the direction of the elongated hole can be along the length of the connector 4 or perpendicular to the length of the connector 4, so as to adjust the relative position of the connector 4 and the support rod 1.

[0048] In one embodiment of this utility model, the support assembly further includes an adhesive pad 2 corresponding to each support rod 1, the adhesive pad 2 being disposed between the support rod 1 and the tube segment 9. The adhesive pad 2 is used to temporarily fix the support rod 1. After the thermosetting adhesive layer 8 on the sensor 7 has cured, the support rod 1 can be removed by tearing off the adhesive pad 2. The material of the adhesive pad 2 can be selected as needed; for example, it can be made of cyanoacrylate instant adhesive, which has high adhesive strength and is suitable for temporary fixation.

[0049] In one embodiment of this utility model, the area of ​​the pad 6 is larger than the end area of ​​the clamping member 3, so as to distribute the force area and avoid damage to the sensor 7.

[0050] Furthermore, the pad 6 is made of a flexible material (such as rubber or silicone) and is disposed between the sensor 7 and the clamping member 3 to disperse the clamping force and protect the surface of the sensor 7 from damage.

[0051] Furthermore, the pad 6 is a circular pad.

[0052] In one embodiment of this invention, the pad 6 is a variable-thickness inclined pad, meaning that the pad 6 is thicker on one side and thinner on the other, and the thickness gradually changes. Based on this structure, the setting angle of the sensor 7 in different directions can be further adjusted, and the clamping effect of the clamping member 3 on it can be optimized to avoid stress concentration.

[0053] In one embodiment of this utility model, anti-slip textures are provided on both sides of the pad 6 to improve the anti-slip effect and ensure the clamping effect on the sensor 7.

[0054] In any of the embodiments provided by this utility model, the thermosetting adhesive layer 8 is epoxy resin, which has high strength and is resistant to chemical corrosion. Epoxy resin is a thermosetting polymer material, mainly composed of epoxy groups (-O-CH2-CH-) forming a three-dimensional network structure through polymerization. Its raw materials (such as bisphenol A and epichlorohydrin) generate low molecular weight prepolymers through polycondensation reactions, which are then cross-linked by curing agents (such as amines and acid anhydrides) to form insoluble and infusible polymers. After curing, the epoxy resin forms a strong and flexible bonding layer. The curing time of epoxy resin is approximately 24 hours, but the specific time depends on the product instructions.

[0055] In any of the above embodiments provided by this utility model, the thermosetting adhesive layer 8 can also be polyurethane, which is highly elastic and impact-resistant.

[0056] The sensor mounting device for curved tunnel segments provided by this utility model, using a support assembly, clamping member 3, and padding layer 6, can temporarily fix the sensor 7 at the required installation angle, forming a certain gap between the sensor 7 and the tunnel segment 9. A thermosetting adhesive material is injected into the gap between the sensor 7 and the tunnel segment 9, and after curing, a thermosetting adhesive layer 8 is formed, which can fix the sensor 7. Afterwards, the support assembly, clamping member 3, and padding layer 6 can be removed. This device is simple, reliable, and versatile, applicable to different curved tunnel segments 9, and suitable for installing the sensor 7 at any installation angle.

[0057] In one specific embodiment, the installation steps of the device may be:

[0058] S1. Surface preparation: Clean the surface of tunnel segment 9 and the back of sensor 7 to remove dust and oil stains and ensure bonding effect.

[0059] S2. Assembly of Support Rod 1: Use connectors 4 and bolts 5 to connect the support rods 1 into two rows of three, forming a parallel frame structure. Ensure the frame is stable and adapts to the curved surface of the tube segment 9.

[0060] S3. Device Fixing: Install a high-strength adhesive pad 2 on the top of the support rod 1 to temporarily bond the device to the surface of the tunnel segment 9. The adhesive pad 2 should be applied with even pressure to ensure a firm bond.

[0061] S4. Sensor 7 Positioning: Place sensor 7 between the two rows of support rods 1, adjust it to the target position, and fix it according to the required installation angle to ensure alignment with the monitoring point.

[0062] S5. Clamping and Fixing: Install a fixing rod on the middle support rod 1 of each row, and apply clamping force by rotating the thread to ensure the stability of the sensor 7. Place a circular shim between the sensor 7 and the fixing rod to prevent force concentration.

[0063] S6. Inject epoxy resin: Use a syringe to inject epoxy resin into the gap between sensor 7 and tube 9, ensuring uniform filling and no air bubbles.

[0064] S7. Curing Waiting: Depending on the curing time of the epoxy resin, wait approximately 24 hours for complete curing. Avoid disturbing the device during the curing period.

[0065] S8. Tool Removal: Loosen the fixing rod, remove the support rod 1, connector 4 and bolt 5 to complete the installation, leaving the sensor 7 firmly connected to the tube segment 9, so that the sensor 7 can work stably for a long time.

[0066] In this device, epoxy resin filling eliminates the gaps between sensor 7 and segment 9, ensuring accurate and reliable data transmission. The device is simple to assemble and disassemble, suitable for on-site construction, and improves installation efficiency. The frame structure and epoxy resin can accommodate segments 9 with varying curvatures and sensors 7 at any angle, making it widely applicable. After curing, the epoxy resin forms a durable connection, suitable for long-term tunnel monitoring needs.

[0067] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. A and B can be singular or plural. Additionally, the character " / " in this article generally indicates an "or" relationship between the preceding and following related objects, but it can also represent an "and / or" relationship. Please refer to the context for a more accurate understanding.

[0068] In this invention, "at least one" means one or more, and "more than one" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0069] It should be understood that in the various embodiments of this utility model, the sequence number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this utility model.

[0070] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A curved surface tunnel segmental sensor mounting device, characterized by, The device comprises: a pair of support assemblies for detachably connecting a pipe piece, the support assemblies comprising at least one support rod; a pair of clamping members movably connected to the support rods, and the end portions of the pair of clamping members abutting against both sides of a sensor; a pair of pads arranged between the end portions of the clamping members and the sensor; a thermosetting adhesive layer arranged between the sensor and the pipe piece for fixing the sensor to the pipe piece after curing.

2. The curved surface tunnel segmental sensor mounting device according to claim 1, wherein, The clamping members are fixed rods; The fixed rods are threadedly connected to the support rods.

3. The curved surface tunnel segmental sensor mounting device according to claim 1, wherein, The clamping members are elastic members; One end of the elastic members is fixed to the support rods, and the other end abuts against the sensor.

4. The curved surface tunnel segmental sensor mounting device according to claim 1, wherein, The support assemblies comprise two rows, and each row comprises at least three support rods, and adjacent support rods are connected by connecting members.

5. The curved surface tunnel segmental sensor mounting device according to claim 4, wherein, The connecting members are provided with long holes, and the support rods are provided with corresponding through holes, and the long holes and the through holes are connected by bolts.

6. The curved surface tunnel segmental sensor mounting device of claim 1, wherein, The support assemblies further comprise adhesive pads corresponding to the support rods, and the adhesive pads are arranged between the support rods and the pipe piece.

7. The curved surface tunnel segmental sensor mounting device according to claim 1, wherein, The area of the pads is greater than the area of the end portions of the clamping members.

8. The curved surface tunnel segmental sensor mounting device of claim 1, wherein, The pads are variable-thickness inclined surface pads.

9. The curved surface tunnel segmental sensor mounting device according to claim 1, wherein, Both surfaces of the pads are provided with anti-skid patterns.

10. The curved surface tunnel segment sensor mounting device according to any one of claims 1 to 9, wherein, The thermosetting adhesive layer is epoxy resin.

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