A temperature-sensitive optical cable installation assembly and installation process thereof

Abstract

A temperature-sensitive optical cable installation assembly includes a base, a support plate, a first fixing plate, a second fixing plate and a compression spring. The first fixing plate is threaded with a plurality of fixing bolts, and the fixing bolts are all passed through adjustment holes provided on the support plate. The surfaces of the first fixing plate and the second fixing plate are both provided with rubber pads. When the fixing bolts are attached to the end of the adjustment hole away from the base, the compression spring is in a non-elastic deformation state, and the two rubber pads are attached to the temperature-sensitive optical cable therebetween. A temperature-sensitive optical cable installation process is also included, including steps S10 to S50. In the embodiment of the present invention, the temperature-sensitive optical cable is clamped and fixed by the temperature-sensitive optical cable installation assembly installed on the building structure, thereby realizing the installation of the temperature-sensitive optical cable. The process is simple, the operation is easy, and the cost is low. In addition, the clamping and fixing of the temperature-sensitive optical cable can maintain its tension after installation, so that the temperature-sensitive optical cable remains in a straightened state, and the temperature-sensitive optical cable will not be damaged.

Description

Technical Field

[0001] The invention belongs to the technical field of optical cable installation, and in particular relates to a temperature-sensitive optical cable installation component and an installation process thereof. Background Art

[0002] Fiber optic temperature sensing technology is an advanced temperature sensing technology with real-time, online, and multi-point temperature measurement capabilities. This technology uses the special medium of temperature-sensitive optical cable to take into account the functions of sensor and signal transmission channel, and converts the temperature information of the space where the optical fiber is located into a backscattered light signal. After signal modulation, collection and processing, the real-time display of temperature information is realized.

[0003] In the field of fire detection, optical fiber temperature sensing technology has shown great application value with its multi-point real-time detection characteristics. For example, in tunnel engineering, by laying temperature-sensing optical cables along the inside of the tunnel, the system can collect temperature data from all parts of the tunnel in real time and provide accurate temperature information for the fire warning system. However, in the actual installation of temperature-sensing optical cables, due to the lack of unified installation component standards and standardized installation processes, construction workers mainly rely on their own experience to lay temperature-sensing optical cables, which leads to inconsistent installation methods and frequent problems.

[0004] The two main installation methods currently used, bridge installation and hanging installation, each have obvious defects:

[0005] 1. Bridge installation: In this method, the temperature-sensitive optical cable is laid in the cable bridge. However, since the bridge needs to be used for cable laying and maintenance at the same time, the temperature-sensitive optical cable is susceptible to mechanical damage, resulting in performance degradation. In addition, there is a lack of tensioning measures in the bridge. When the temperature-sensitive optical cable is laid over a long distance, there may be a significant error between its temperature measurement and the actual position, resulting in the fire warning system being unable to accurately locate the fire source, thereby delaying rescue time.

[0006] 2. Suspension installation: This method uses steel wire to suspend the temperature-sensitive optical cable. The steel wire must be suspended, fixed and tensioned first, and then the temperature-sensitive optical cable is suspended. This method not only has complicated construction procedures, but also a large number of high-altitude operations significantly increase the safety risks of construction. It also causes an economic burden due to the high material and labor costs. Summary of the invention

[0007] In view of the deficiencies existing in the related art, the present invention provides a temperature-sensitive optical cable installation assembly and an installation process thereof to solve the problems existing in the current temperature-sensitive optical cable installation method, such as easy damage, lack of tension, complicated process and high cost.

[0008] The present invention provides a temperature-sensitive optical cable installation assembly, comprising:

[0009] Pedestal;

[0010] A support plate, fixedly mounted on the assembly surface of the base;

[0011] A first fixing plate, mounted on the supporting plate;

[0012] A second fixing plate, located between the first fixing plate and the base;

[0013] A compression spring, one end of which is fixedly connected to the assembly surface of the base, and the other end of which is fixedly connected to the second fixing plate;

[0014] Among them, a plurality of fixing bolts are threadedly connected on the first fixing plate, and the fixing bolts are all passed through the adjustment holes set in the support plate, and the adjustment holes are waist holes and are parallel to the axial direction of the compression spring;

[0015] Tighten the fixing bolts to fix the first fixing plate to the support plate;

[0016] The surfaces of the first fixing plate and the second fixing plate are both provided with rubber pads, which are arranged opposite to each other. When the fixing bolt is attached to the end of the adjustment hole away from the base, the compression spring is in a non-elastic deformation state, and the two rubber pads are attached to the temperature-sensitive optical cable between the two.

[0017] In some of the embodiments, a fine-tuning bolt is threadedly connected to the support plate, the fine-tuning bolt is parallel to the axis of the compression spring, and the inner end of the fine-tuning bolt extends into the adjustment hole.

[0018] In some embodiments, a handle is installed on the second fixing plate, and the handle is located on a surface of the second fixing plate away from the first fixing plate.

[0019] In some of the embodiments, a guide column is installed on the base, and the compression spring is sleeved on the guide column.

[0020] The present invention also provides a temperature-sensitive optical cable installation process, using the temperature-sensitive optical cable installation assembly.

[0021] In some embodiments, the specific steps are as follows:

[0022] S10: Move the first fixing plate of each temperature-sensitive optical cable installation assembly toward the second fixing plate for the first time, and the moving distance of each first fixing plate reaches the first set distance. Fix it when

[0023] S20: installing a first temperature-sensitive optical cable installation assembly on the top plate at the front end of the tunnel, lifting a winch wound with the temperature-sensitive optical cable to the rear side of the first temperature-sensitive optical cable installation assembly, pulling one end of the temperature-sensitive optical cable out of the winch, and clamping and fixing the temperature-sensitive optical cable between a first fixing plate and a second fixing plate of the first temperature-sensitive optical cable installation assembly;

[0024] S30: Shift the winch backwards, install a second temperature-sensitive optical cable installation assembly on the tunnel top plate adjacent to the front side of the winch, clamp and fix the temperature-sensitive optical cable pulled out with the translation of the winch between the first fixing plate and the second fixing plate of the second temperature-sensitive optical cable installation assembly, connect the temperature-sensitive optical cable on the rear side of the second temperature-sensitive optical cable installation assembly to a tension meter, pull the tension meter backwards horizontally to make its tension value reach the set tension F, tighten the temperature-sensitive optical cable between the second temperature-sensitive optical cable installation assembly and the first temperature-sensitive optical cable installation assembly, translate the winch backwards successively in the above manner, install a temperature-sensitive optical cable installation assembly on the tunnel top plate adjacent to the front side of the winch each time after the translation, clamp and fix the pulled temperature-sensitive optical cable on the temperature-sensitive installation assembly, connect the tension meter to the temperature-sensitive optical cable on the rear side of the temperature-sensitive installation assembly and pull it backwards horizontally until its tension value reaches the set tension F, tighten the temperature-sensitive optical cables between the temperature-sensitive installation assemblies, until the temperature-sensitive installation assembly is installed to the top plate at the rear end of the tunnel, and the installed temperature-sensitive optical cable installation assemblies are aligned on the same horizontal line;

[0025] S40: Move the first fixing plate of the temperature-sensitive optical cable installation assembly toward the second fixing plate one by one from front to back for the second time, and the moving distance reaches the second set distance When the number of temperature-sensitive optical cable installation assemblies that have completed the second movement reaches 40% of the total number of temperature-sensitive optical cable installation assemblies, installation limit hoops are sleeved on the temperature-sensitive optical cables on the rear side of the temperature-sensitive optical cable installation assemblies that have not completed the second movement, and the limit hoops are attached to the temperature-sensitive optical cable installation assemblies adjacent to the front side;

[0026] S50: For the temperature-sensitive optical cable installation components that have not been moved for the second time, the first fixing plates are moved toward the second fixing plates one by one from front to back for the second time, and the moving distances are all within the second set distance. Fixing the first fixing plate;

[0027] Among them, the first setting distance ;

[0028] Second setting distance ;

[0029] Setting tension ;

[0030] a is 80%, b is 90%, c is 85%, is the tensile strength value of the temperature-sensitive optical cable, D is the median diameter of the compression spring, n is the effective number of coils of the compression spring, G is the shear modulus of the material used for the compression spring, d is the diameter of the compression spring steel wire, It is the friction coefficient between the outer sheath of the temperature-sensitive optical cable and the rubber pad.

[0031] In some embodiments, the spacing between adjacent temperature sensing optical cable installation components is less than the set spacing. , ;

[0032] Wherein, q is the weight of the temperature-sensitive optical cable per meter.

[0033] In some of the embodiments, the temperature-sensitive optical cable installation assembly is installed on a leveling pad provided on the tunnel roof, and each temperature-sensitive optical cable installation assembly is installed to the same height and aligned in the front-to-back direction.

[0034] In some embodiments, in step S40, the limiting hoops are installed one by one from back to front.

[0035] In some embodiments, when the temperature-sensitive optical cable installation assembly is installed on the tunnel roof, the temperature-sensitive optical cable installation assembly is installed inverted, with its second fixing plate placed above the first fixing plate, and its base is fixedly connected to the tunnel roof.

[0036] In some embodiments, in step S50, each time the second movement of a temperature-sensitive optical cable installation assembly is completed, a limiting hoop adjacent to the rear side is removed.

[0037] Compared with the prior art, the beneficial effects of the present application are as follows: in the embodiment of the present invention, the temperature-sensitive optical cable is clamped and fixed by a temperature-sensitive optical cable installation assembly installed on a building structure, thereby realizing the installation of the temperature-sensitive optical cable, with a simple process, easy operation, and low cost, and the clamping and fixing of the temperature-sensitive optical cable can maintain its tension after installation, so that the temperature-sensitive optical cable remains in a straightened state, and the correspondence between the measured temperature and the position is accurate. The temperature-sensitive optical cable is installed separately outside the bridge and will not be damaged, thus solving the problems of easy damage, lack of tension, complicated process, and high cost in the current installation method of the temperature-sensitive optical cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0039] Figure 1 The structure of the temperature-sensitive optical cable installation assembly of the present invention is shown in FIG. Figure 1 ;

[0040] Figure 2 The structure of the temperature-sensitive optical cable installation assembly of the present invention is shown in FIG. Figure 2 ;

[0041] Figure 3 The process flow chart of the temperature-sensitive optical cable installation process of the present invention;

[0042] Figure 4 The construction diagram of the temperature-sensitive optical cable installation process of the present invention is shown in FIG. Figure 1 ;

[0043] Figure 5 The construction diagram of the temperature-sensitive optical cable installation process of the present invention is shown in FIG. Figure 2 ;

[0044] Figure 6 The construction diagram of the temperature-sensitive optical cable installation process of the present invention is shown in FIG. Figure 3 ;

[0045] Figure 7 The construction diagram of the temperature-sensitive optical cable installation process of the present invention is shown in FIG. Figure 4 ;

[0046] Figure 8 The construction diagram of the temperature-sensitive optical cable installation process of the present invention is shown in FIG. Figure 5 ;

[0047] Fig. 9 The construction diagram of the temperature-sensitive optical cable installation process of the present invention is shown in FIG. Figure 6 ;

[0048] In the figure:

[0049] 1. Base; 2. Support plate; 3. First fixing plate; 4. Second fixing plate; 5. Compression spring; 6. Fixing bolt; 7. Adjustment hole; 8. Rubber pad; 9. Fine-tuning bolt; 10. Handle; 11. Guide column;

[0050] 100. Temperature-sensitive optical cable; 200. Temperature-sensitive optical cable installation assembly; 200-1. First temperature-sensitive optical cable installation assembly; 200-2. Second temperature-sensitive optical cable installation assembly; 200-3. Third temperature-sensitive optical cable installation assembly; 300. Winch; 400. Tension meter; 500. Limiting hoop; 600. Mobile lifting platform vehicle. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0052] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0053] The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] like Figure 1 to Figure 2 As shown, in an illustrative embodiment of the temperature-sensitive optical cable installation assembly of the present invention, the temperature-sensitive optical cable installation assembly includes a base 1, a support plate 2, a first fixing plate 3, a second fixing plate 4 and a compression spring 5.

[0056] One side surface of the base 1 is used as an assembly surface, and the support plate 2 and one end of the compression spring 5 are fixedly mounted on the assembly surface. The first fixing plate 3 is mounted on the support plate 2 by fixing bolts 6. The second fixing plate 4 is located between the first fixing plate 3 and the base 1 and is fixedly connected to the other end of the compression spring 5. Multiple fixing bolts 6 are located in the adjustment holes 7 set in the support plate 2. The adjustment holes 7 are waist holes and are parallel to the axial direction of the compression spring 5. The surfaces of the first fixing plate 3 and the second fixing plate 4 are both equipped with rubber pads 8, and the two rubber pads 8 are arranged opposite to each other.

[0057] When the fixing bolt 6 is attached to the end of the adjustment hole 7 away from the base 1, the compression spring 5 is in a non-elastic deformation state, and the two rubber pads 8 are attached to the temperature-sensitive optical cable 100 therebetween. At this time, the temperature-sensitive optical cable installation assembly 200 is in an initial state, the elastic deformation of the compression spring 5 is 0, and the two rubber pads 8 are just attached to the two sides of the temperature-sensitive optical cable.

[0058] Loosen each fixing bolt 6 to slide along the adjustment hole 7 toward the second fixing plate 4, so that the first fixing plate 3 approaches the second fixing plate 4, and then tighten the fixing bolt 6 to fix the first fixing plate 3 at a position closer to the second fixing plate 4. At this time, the temperature-sensitive optical cable installation assembly 200 is in a working state, the two rubber pads 8 are respectively attached to the two sides of the temperature-sensitive optical cable 100, and the compression spring 5 is compressed, and the elastic force generated acts on the second fixing plate 4, so that the first fixing plate 3 and the second fixing plate 4 clamp and fix the temperature-sensitive optical cable therebetween through the two rubber pads 8.

[0059] The temperature-sensitive optical cable installation assembly 200 is adjusted to a working state and fixed on the building structure. The base 1 is fixedly connected to the building structure. The temperature-sensitive optical cable 100 is laid and clamped and fixed on each temperature-sensitive optical cable installation assembly 200 , thereby realizing the laying and installation of the temperature-sensitive optical cable 100 .

[0060] In the above-mentioned schematic embodiment, the temperature-sensitive optical cable installation component 200 is driven by the first fixing plate 3 and the second fixing plate 4 under the compression spring 5 to support and fix the laid temperature-sensitive optical cable, so as to realize the stable installation of the temperature-sensitive optical cable. The installation and fixing operation of the temperature-sensitive optical cable installation component 200 and its clamping and fixing operation of the temperature-sensitive optical cable are relatively easy, the process is simple and the cost is low; the clamping force of the temperature-sensitive optical cable can be adjusted by changing the position of the first fixing plate 3, and the temperature-sensitive optical cable can be firmly fixed when the tension force is sufficient, so that the temperature-sensitive optical cable is kept in a straightened state, and the correspondence between the measured temperature and the position is accurate; the temperature-sensitive optical cable is independently installed through the temperature-sensitive optical cable installation component 200, and will not be damaged due to installation in the bridge, which solves the problems of easy damage, lack of tension, complex process and high cost in the current installation method of temperature-sensitive optical cables.

[0061] In some embodiments, a fine-tuning bolt 9 is threadedly connected to the support plate 2 . The fine-tuning bolt 9 is parallel to the axis of the compression spring 5 , and the inner end of the fine-tuning bolt 9 extends into the adjustment hole 7 .

[0062] A scale line is set on one side of the adjustment hole 7. When the temperature-sensitive optical cable installation assembly 200 is in the initial state, one end of the scale line is aligned with a fixing bolt 6 in the adjustment hole 7 that is farthest from the second fixing plate 4. The fixing bolt 6 serves as a reference bolt. When the position of the first fixing plate 3 needs to be precisely adjusted, loosen the fixing bolt 6 and rotate the fine-tuning bolt 9 at the same time. During the process, keep the fine-tuning bolt 9 against the reference bolt until the required scale is reached on the reference bolt scale line. By accurately adjusting the position of the reference bolt, the movement stroke of the first fixing plate 3 is accurately controlled, the deformation amount of the compression spring 5 is accurate, and sufficient pressure is provided to keep the temperature-sensitive optical cable clamped and fixed stably.

[0063] In some embodiments, a handle 10 is installed on the second fixing plate 4, and the handle 10 is located on the surface of the second fixing plate 4 away from the first fixing plate 3, so that the handle 10 can be pulled toward the side away from the first fixing plate 3 to compress the compression spring 5 and pull the rubber pad 8 on the second fixing plate 4 away from the rubber pad 8 on the first fixing plate 3, so that the temperature-sensitive optical cable can be easily inserted and fixed after the handle 10 is released.

[0064] In some embodiments, a guide column 11 is installed on the base 1, and the compression spring 5 is sleeved on the guide column 11 and is in sliding contact with its outer wall. The guide column 11 enables the compression spring 5 to maintain axial deformation, and can provide pressure more accurately and sufficiently to maintain the stability of the temperature-sensitive optical cable clamping.

[0065] Based on the above-mentioned temperature-sensitive optical cable installation assembly 200, as Figures 3 to 9 As shown, the present invention also provides a temperature-sensitive optical cable installation process, which uses the temperature-sensitive optical cable installation assembly 200, and the specific steps are as follows:

[0066] Step S10 is performed, using multiple temperature-sensitive optical cable installation assemblies 200, and the first fixing plate 3 of each temperature-sensitive optical cable installation assembly 200 is moved toward its second fixing plate 4 for the first time, and the moving distance of the first movement is the first set distance. After the first movement of each temperature-sensitive optical cable installation assembly 200 is completed, the corresponding first fixing plate 3 is fixed by tightening the fixing bolts 6, so that each temperature-sensitive optical cable installation assembly 200 is adjusted from the initial state to the working state.

[0067] Proceed to step S20, such as Figure 4 As shown, the first temperature-sensitive optical cable installation assembly 200-1 is installed on the top plate at the front end of the tunnel, and the winch 300 wound with the temperature-sensitive optical cable 100 is lifted to the rear side of the first temperature-sensitive optical cable installation assembly 200-1, so that the two are arranged adjacent to each other one after the other. One end of the temperature-sensitive optical cable 100 is pulled out from the winch 300 and clamped and fixed between the first fixing plate 3 and the second fixing plate 4 of the first temperature-sensitive optical cable installation assembly 200-1.

[0068] Proceed to step S30, such as Figure 5 As shown, the winch 300 is translated backward, and a second temperature-sensitive optical cable installation assembly 200-2 is installed on the tunnel top plate adjacent to the front side of the winch 300, and the temperature-sensitive optical cable 100 pulled out with the translation of the winch 300 is clamped and fixed between the first fixing plate 3 and the second fixing plate 4 of the second temperature-sensitive optical cable installation assembly 200-2, as shown in FIG. Figure 6 As shown, the temperature-sensitive optical cable on the rear side of the second temperature-sensitive optical cable installation assembly 200-2 (i.e., the temperature-sensitive optical cable 100 between the current winch 300 and the second temperature-sensitive optical cable installation assembly 200-2) is connected to the tension meter 400, and the tension meter 400 is pulled horizontally backward so that its tension value reading reaches the set tension F, thereby pulling the temperature-sensitive optical cable through the tension meter 400, straightening and tightening the temperature-sensitive optical cable between the second temperature-sensitive optical cable installation assembly 200-2 and the first temperature-sensitive optical cable installation assembly 200-1, and then removing the tension meter 400.

[0069] like Figure 7 As shown, the winch 300 is translated backward again. After the winch 300 is moved, a third temperature-sensitive optical cable installation assembly 200-3 is installed on the adjacent tunnel top plate in front of it, and the newly pulled temperature-sensitive optical cable is clamped and fixed on the third temperature-sensitive optical cable installation assembly 200-3. Figure 8As shown, the force gauge 400 is installed on the temperature-sensitive optical cable between the third temperature-sensitive optical cable installation assembly 200-3 and the winch, and the force gauge 400 is pulled horizontally backward until its tension value reading reaches the set tension F, the temperature-sensitive optical cable between the third temperature-sensitive optical cable installation assembly 200-3 and the second temperature-sensitive optical cable installation assembly 200-2 is straightened and tightened, and then the force gauge 400 is removed.

[0070] According to the above method, the winch 300 is translated backward for many times. Each time the winch 300 is translated, a temperature-sensitive optical cable installation assembly 200 is installed on its front side, thereby successively installing the fourth, fifth, sixth, ... Nth temperature-sensitive optical cable installation assembly, where N is a natural number greater than 6. Each time the winch 300 moves, the newly pulled out temperature-sensitive optical cable 100 is first clamped and fixed to the newly installed temperature-sensitive optical cable installation assembly 200, and then the tension meter 400 is connected to the rear end of the temperature-sensitive optical cable 100 and pulled horizontally backward. Each time the temperature-sensitive optical cable is pulled by the tension meter 400, the tension value reading of the tension meter 400 is the set tension F, thereby straightening and tightening the temperature-sensitive optical cable between the newly installed temperature-sensitive optical cable installation assembly 200 and the adjacent temperature-sensitive optical cable installation assembly 200 on the front side. Finally, when the temperature-sensing installation components were installed on the roof at the rear end of the tunnel, the winch had moved out of the tunnel from the rear end. At this time, all the temperature-sensing installation components were installed on the tunnel roof from front to back, and each temperature-sensing installation component effectively clamped and fixed the temperature-sensing optical cable at the corresponding position.

[0071] Perform step S40, move the first fixing plate 3 of the temperature-sensitive optical cable installation assembly 200 toward the second fixing plate 4 from front to back one by one for the second time, and the moving distance of the second movement is the second set distance 200. After the first movement of each temperature-sensitive optical cable installation assembly 200 is completed, the corresponding first fixing plate 3 will be fixed by tightening the fixing bolt 6, thereby further increasing the elastic deformation of the compression spring 5 in the working state of the temperature-sensitive optical cable installation assembly 200, and enhancing its clamping force on the temperature-sensitive optical cable.

[0072] The first fixing plate 3 is moved for the second time on the temperature-sensitive optical cable installation assembly 200 one by one from front to back. Fig. 9 As shown, when the number of temperature-sensitive optical cable installation assemblies 200 that have completed the second movement of the first fixing block reaches 40% of the total number of temperature-sensitive optical cable installation assemblies 200, the temperature-sensitive optical cables on the rear side of the temperature-sensitive optical cable installation assemblies 200 that have not performed the second movement are all sleeved with installation limit hoops 500, and the limit hoops 500 are all attached to the adjacent temperature-sensitive optical cable installation assemblies 200 on the front side. The limit hoop 500 is a detachable clamp that is tightly attached to the temperature-sensitive optical cable, protrudes relative to the outer wall of the temperature-sensitive optical cable, and is attached to the temperature-sensitive optical cable installation assembly 200 to prevent the temperature-sensitive optical cable from moving forward.

[0073] Step S50 is performed. For the temperature-sensitive optical cable installation assembly 200 that has not been moved for the second time, the first fixing plate 3 is moved toward the second fixing plate 4 from front to back one by one, thereby completing the second movement of the first fixing plate 3 in the subsequent temperature-sensitive optical cable installation assembly 200 in sequence. The moving distance of the second movement is still the second set distance. After the second movement of each temperature-sensitive optical cable installation assembly 200 is completed, the corresponding first fixing plate 3 will be fixed by tightening the fixing bolts 6.

[0074] First setting distance , the second setting distance , set the tension , a is 80%, b is 90%, c is 85%, is the tensile strength value of the temperature-sensitive optical cable, D is the median diameter of the compression spring 5, n is the effective number of coils of the compression spring 5, G is the shear modulus of the material used for the compression spring 5, d is the diameter of the steel wire of the compression spring 5, is the friction coefficient between the outer sheath of the temperature-sensitive optical cable and the rubber pad 8.

[0075] Tensile strength value and friction coefficient The results of the performance test in the laboratory show that the temperature sensing optical cable is clamped on both sides by rubber pads 8 of the same material to ensure the friction coefficient The measurement is accurate. The median diameter D of the compression spring 5, the effective number of coils n of the compression spring 5 and the wire diameter d of the compression spring 5 are all dimensional parameters of the compression spring 5 and can be directly obtained; the shear modulus G is obtained by looking up the table according to the material used for the compression spring 5.

[0076] In the above-mentioned exemplary embodiment, in step S10 of the temperature-sensitive optical cable installation process, after each temperature-sensitive optical cable installation assembly 200 is installed and fixed to the tunnel roof, all the temperature-sensitive optical cable installation assemblies 200 can be adjusted from an initial state to a working state on the ground, so that after the temperature-sensitive optical cable installation assembly 200 is installed on the tunnel roof, it can be immediately used to clamp and fix the temperature-sensitive optical cable.

[0077] In step S10, the displacement distance of the first fixing plate 3 is controlled to control the deformation of the compression spring 5 when the temperature-sensitive optical cable is clamped and fixed by the temperature-sensitive optical cable installation assembly 200, thereby controlling the clamping force. Furthermore, through the precise calculation of the first set distance 100, when the elastic force generated by the compression spring 5 acts on the temperature-sensitive optical cable through the second fixing plate 4 and the rubber pad 8, a friction force of 80% of the tensile strength value of the temperature-sensitive optical cable can be generated.

[0078] In step S20, the first temperature-sensitive optical cable installation assembly 200 is installed from the front end, and the end of the temperature-sensitive optical cable is clamped and fixed by the first temperature-sensitive optical cable, so as to provide a fixed foundation for the subsequent extraction of the temperature-sensitive optical cable from the winch 300. In addition, in order to ensure that the winch 300 and the installed first temperature-sensitive optical cable installation assembly 200 are adjacent to each other, that is, the distance between the two is short, a movable lifting platform vehicle 600 is used to install the temperature-sensitive optical cable installation assembly 200, the winch 300 is fixed to the rear of the movable lifting platform vehicle 600, and the temperature-sensitive optical cable installation assembly 200 is installed at the front of the movable lifting platform vehicle 600. The space of the movable lifting platform vehicle 600 is small, so as to ensure that the winch 300 and the installed temperature-sensitive optical cable installation assembly 200 are adjacent to each other.

[0079] In step S30, by moving the mobile lifting platform vehicle 600 backwards one by one, the winch 300 can be moved backwards and the new temperature-sensitive optical cable can be pulled out. At the same time, a new temperature-sensitive optical cable installation assembly 200 is installed nearby the mobile lifting platform vehicle 600 so that it is arranged adjacent to the winch 300 one in front of the other and the other behind, with a close spacing.

[0080] The temperature-sensitive optical cable is pulled taut by using the dynamometer 400, and the tension on the temperature-sensitive optical cable can reach 85% of its tensile strength value, so that after the temperature-sensitive optical cable is clamped and fixed on the temperature-sensitive optical cable installation assembly 200, it has sufficient tension to maintain its straightness, and accurately measure the temperature at various locations along the tunnel.

[0081] When the dynamometer 400 is used to pull the temperature-sensitive optical cable, the clamping force of the temperature-sensitive optical cable installation assembly 200 generates a friction force equivalent to 80% of the tensile strength value when acting on the temperature-sensitive optical cable. The horizontal tension generated by pulling the temperature-sensitive optical cable can overcome the friction force and the reverse pulling force generated by the weight of the temperature-sensitive optical cable between the temperature-sensitive optical cable installation assemblies 200, so that the clamped temperature-sensitive optical cable can move horizontally, thereby shortening the length of the temperature-sensitive optical cable between adjacent temperature-sensitive optical cable installation assemblies 200, straightening this part of the temperature-sensitive optical cable, and the straightened temperature-sensitive optical cable has a tension of 85% of the tensile strength value, and is kept taut. In addition, when the tension meter 400 is used to pull the temperature-sensitive optical cable, the temperature-sensitive optical cable between the two temperature-sensitive optical cable installation assemblies 200 in front of the tension meter 400 is not tightened, and the tension applied to the temperature-sensitive optical cable by the tension meter 400 first acts on the temperature-sensitive optical cable between the connection point between the first temperature-sensitive optical cable installation assembly 200 adjacent to the front side and the tension meter 400. This section of the temperature-sensitive optical cable is only subjected to the friction force generated by the clamping of the first temperature-sensitive optical cable installation assembly 200 adjacent to the front side, and the tension can overcome the friction force and the reverse tension generated by the weight of the temperature-sensitive optical cable in front. The sum of the two temperature-sensitive optical cable installation assemblies 200 causes the section of temperature-sensitive optical cable to move backward under the action of the pulling force, thereby tightening and straightening the temperature-sensitive optical cable between the first and second temperature-sensitive optical cable installation assemblies 200 adjacent to the front side. When the temperature-sensitive optical cable is tightened and straightened, the temperature-sensitive optical cable will produce a horizontal pull on the second temperature-sensitive optical cable installation assembly 200 adjacent to the front side. At this time, due to the friction force generated by the two temperature-sensitive optical cable installation assemblies 200 as resistance, the temperature-sensitive optical cable is pulled with a pulling force of 85% of the tensile strength value, which will not be able to overcome the double friction force, thereby keeping it fixed and straightened.

[0082] In step 40, the second movement adjustment of the first fixed plate 3 in the temperature-sensitive optical cable installation assembly 200 is performed one by one from front to back. Through the precise calculation of the second set distance 200, when the elastic force generated by the compression spring 5 acts on the temperature-sensitive optical cable through the second fixed plate 4 and the rubber pad 8, the friction force that can be generated on the temperature-sensitive optical cable is increased to 90% of the tensile strength value, thereby enhancing the clamping and fixing effect of the temperature-sensitive optical cable, so that the temperature-sensitive optical cable remains stable under a tension force of 85% of the tensile strength value.

[0083] In addition, each time a temperature-sensitive optical cable installation component 200 is moved and adjusted for the second time, a certain height difference will be generated between it and a temperature-sensitive optical cable installation component 200 adjacent to the front side, resulting in pulling of the temperature-sensitive optical cable between the two. In the early stage of the second movement and adjustment, the number of temperature-sensitive optical cable installation components 200 that have completed the second movement and adjustment is relatively small, and the sum of the frictional forces generated by the pressure acting on the temperature-sensitive optical cable is less than the sum of the frictional forces generated by the temperature-sensitive optical cable installation components 200 that have not completed the second movement and adjustment. The pulling of the temperature-sensitive optical cables between adjacent temperature-sensitive optical cable installation components 200 caused by the second movement and adjustment will not cause the rear temperature-sensitive optical cable to be pulled forward and remain stationary, and the height difference generated is at the centimeter level, and the horizontal spacing is at the ten-meter level. The pulling will not break the temperature-sensitive optical cable; when the temperature-sensitive optical cable installation components 200 that have completed the second movement and adjustment are When the number of components 200 reaches 40% of the total number, when the number of temperature-sensitive optical cable installation components 200 is increased to complete the second movement adjustment, the front pulling force will be greater than the sum of the rear friction forces, causing the rear temperature-sensitive optical cable to be pulled forward. In order to avoid this situation, a limit hoop 500 is fixedly installed on the temperature-sensitive optical cable. The limit hoop 500 presses on the temperature-sensitive optical cable installation component 200 to prevent the temperature-sensitive optical cable from moving forward under pulling, thereby avoiding the situation where the temperature-sensitive optical cables between adjacent temperature-sensitive optical cable installation components 200 move due to pulling and become loose after all the temperature-sensitive optical cable installation components 200 complete the second movement adjustment.

[0084] In step S50, the second movement adjustment of the subsequent temperature-sensitive optical cable installation assembly 200 is continued, so that all the temperature-sensitive optical cable installation assemblies 200 are lifted, and the friction force generated by each is greater than the tension force of the temperature-sensitive optical cable, thereby improving the stability of the temperature-sensitive optical cable after installation.

[0085] Finally, the temperature-sensitive optical cable is stably installed by clamping and fixing the entire temperature-sensitive optical cable from front to back along the top of the tunnel through each temperature-sensitive optical cable installation assembly 200. The temperature-sensitive optical cable has sufficient tension to keep it straight, and the temperature measurement is accurate. During the construction process, only the movable lifting platform vehicle 600 and the equipment for installing the temperature-sensitive optical cable installation assembly 200 are needed, and the operation is simple and convenient.

[0086] In some embodiments, the spacing between adjacent temperature-sensitive optical cable installation assemblies 200 is less than the set spacing. , ; Where q is the weight of the temperature-sensitive optical cable per meter.

[0087] According to the precise setting distance , thereby accurately limiting the spacing between the temperature-sensitive optical cable installation assemblies 200, ensuring that the temperature-sensitive optical cables between adjacent temperature-sensitive optical cable installation assemblies 200 will not bend and deform due to being too long, thereby causing the temperature-sensitive optical cables to deform and relax, and maintain effective straightness for a long time.

[0088] In some embodiments, due to the poor flatness of the tunnel roof, the temperature sensing optical cable installation assembly 200 is installed on a leveling plate provided on the tunnel roof, that is, each temperature sensing optical cable installation assembly 200 is adjusted to the same height through a leveling plate of corresponding thickness, and aligned in the front-to-back direction, thereby ensuring that after clamping and fixing the installation, the temperature sensing optical cable remains horizontal and coaxial, ensuring that the correspondence between the temperature and position measured by the temperature sensing optical cable is accurate, so that the fire warning system can accurately locate the source of the fire.

[0089] In some embodiments, in step S40, the limiting hoop 500 is installed one by one from back to front.

[0090] The limiting hoop 500 is installed from the middle of the entire temperature-sensitive optical cable. The limiting hoop 500 with increasing total weight acts on the middle of the temperature-sensitive optical cable, which will cause the temperature-sensitive optical cable to be pulled forward under the weight of the limiting hoop 500, causing the temperature-sensitive optical cable to loosen.

[0091] When installed from back to front, the weight of the limiting hoop 500 will act on the temperature-sensing optical cable in a backward pulling direction, thereby preventing the temperature-sensing optical cable from being compressed and loosened due to the installation of the limiting hoop 500, keeping the temperature-sensing optical cable taut and straight, and maintaining the accuracy of the temperature measurement position.

[0092] In some embodiments, when the temperature-sensitive optical cable installation assembly 200 is installed on the tunnel ceiling, the temperature-sensitive optical cable installation assembly 200 is installed inverted, with its second fixing plate 4 placed above the first fixing plate 3, and its base 1 fixedly connected to the tunnel ceiling.

[0093] When the temperature-sensitive optical cable is clamped and fixed on the temperature-sensitive optical cable installation assembly 200 by inverted installation, it is placed on the rubber pad 8 on the first fixing plate 3, so that each clamping and fixing point can be aligned on the horizontal line, which makes it easier to avoid height differences and make it easier to install the entire temperature-sensitive optical cable to a horizontal state.

[0094] In addition, the temperature-sensitive optical cable installation assembly 200 is provided with a fine-tuning bolt 9, which is inserted into the adjustment hole 7 from bottom to top. When adjusting, the fixing bolt 6 is pushed upward, and the fixing bolt 6 falls on the fine-tuning bolt 9. The axial movement stroke of the fine-tuning bolt 9 can accurately correspond to the movement stroke of the first fixing plate 3, and it is convenient to adjust the clamping force when the temperature-sensitive optical cable has been clamped and fixed.

[0095] In some embodiments, each time the second movement of a temperature-sensitive optical cable installation assembly 200 is completed, a limiting hoop 500 adjacent to the rear side is removed, thereby quickly reducing the pressure of the limiting hoop 500 on the temperature-sensitive optical cable during installation and ensuring the stability of the temperature-sensitive optical cable during installation.

[0096] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0097] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A temperature-sensitive optical cable installation assembly, characterized in that: include: Pedestal; A support plate, fixedly mounted on the assembly surface of the base; A first fixing plate, mounted on the supporting plate; a second fixing plate, located between the first fixing plate and the base; A compression spring, one end of which is fixedly connected to the assembly surface of the base, and the other end of which is fixedly connected to the second fixing plate; Wherein, a plurality of fixing bolts are threadedly connected on the first fixing plate, and the fixing bolts are all passed through the adjustment holes provided on the support plate, and the adjustment holes are waist holes and are parallel to the axial direction of the compression spring; Tightening the fixing bolts to fix the first fixing plate to the support plate; The surfaces of the first fixing plate and the second fixing plate are both provided with rubber pads, and the two rubber pads are arranged opposite to each other. When the fixing bolt is attached to the end of the adjustment hole away from the base, the compression spring is in a non-elastic deformation state, and the two rubber pads are attached to the temperature-sensitive optical cable between the two.

2. The temperature-sensitive optical cable installation assembly according to claim 1, characterized in that: A fine-tuning bolt is threadedly connected to the support plate. The fine-tuning bolt is parallel to the axis of the compression spring, and the inner end of the fine-tuning bolt extends into the adjustment hole.

3. The temperature-sensitive optical cable installation assembly according to claim 1, characterized in that: A handle is installed on the second fixing plate, and the handle is located on the surface of the second fixing plate at a side away from the first fixing plate.

4. The temperature-sensitive optical cable installation assembly according to claim 1, characterized in that: A guide column is installed on the base, and the compression spring is sleeved on the guide column.

5. A temperature-sensitive optical cable installation process, characterized in that: The temperature-sensitive optical cable installation assembly according to any one of claims 1 to 4 is adopted, and the specific steps are as follows: S10: Move the first fixing plate of each temperature-sensitive optical cable installation assembly toward the second fixing plate for the first time, and the moving distance of each first fixing plate reaches the first set distance. Fix it when S20: installing the first temperature-sensitive optical cable installation assembly on the top plate at the front end of the tunnel, lifting the winch wound with the temperature-sensitive optical cable to the rear side of the first temperature-sensitive optical cable installation assembly, pulling one end of the temperature-sensitive optical cable out of the winch, and clamping and fixing it between the first fixing plate and the second fixing plate of the first temperature-sensitive optical cable installation assembly; S30: Move the winch backwards, install the second temperature-sensitive optical cable installation assembly on the tunnel top plate adjacent to the front side of the winch, clamp and fix the temperature-sensitive optical cable pulled out with the translation of the winch between the first fixing plate and the second fixing plate of the second temperature-sensitive optical cable installation assembly, connect the temperature-sensitive optical cable on the rear side of the second temperature-sensitive optical cable installation assembly to the tension meter, pull the tension meter backwards horizontally so that its tension value reaches the set tension F, tighten the temperature-sensitive optical cable between the second temperature-sensitive optical cable installation assembly and the first temperature-sensitive optical cable installation assembly, and install the temperature-sensitive optical cable on the second temperature-sensitive optical cable installation assembly one by one according to the above method. The winch is translated backward for a number of times, and after each translation of the winch, one of the temperature-sensitive optical cable installation components is installed on the adjacent tunnel roof in front of it, and the pulled-out temperature-sensitive optical cable is clamped and fixed on the temperature-sensitive optical cable installation component, a tension meter is connected to the temperature-sensitive optical cable on the rear side of the temperature-sensitive optical cable installation component and pulled horizontally backward until its tension value reaches the set tension F, and the temperature-sensitive optical cables between the temperature-sensitive optical cable installation components are tightened until the temperature-sensitive optical cable installation component is installed to the roof of the rear end of the tunnel, and the installed temperature-sensitive optical cable installation components are aligned on the same horizontal line; S40: Move the first fixing plate of the temperature-sensitive optical cable installation assembly toward the second fixing plate one by one from front to back for the second time, and the moving distance reaches the second set distance When the number of temperature-sensitive optical cable installation assemblies that have completed the second movement reaches 40% of the total number of temperature-sensitive optical cable installation assemblies, installation limit hoops are sleeved on the temperature-sensitive optical cables on the rear side of the temperature-sensitive optical cable installation assemblies that have not performed the second movement, and the limit hoops are attached to the temperature-sensitive optical cable installation assemblies adjacent to the front side; S50: For the temperature-sensitive optical cable installation components that have not been moved for the second time, the first fixing plates are moved toward the second fixing plates one by one from front to back for the second time, and the moving distances are all within the second set distance. Fixing the first fixing plate; Among them, the first setting distance ; Second setting distance ; Setting tension ; a is 80%, b is 90%, c is 85%, is the tensile strength value of the temperature-sensitive optical cable, D is the median diameter of the compression spring, n is the effective number of coils of the compression spring, G is the shear modulus of the material used for the compression spring, d is the diameter of the compression spring steel wire, It is the friction coefficient between the outer sheath of the temperature-sensitive optical cable and the rubber pad.

6. The temperature-sensitive optical cable installation process according to claim 5, characterized in that: The spacing between adjacent temperature-sensitive optical cable installation components is less than the set spacing. , ; Wherein, q is the weight of the temperature-sensitive optical cable per meter.

7. The temperature-sensitive optical cable installation process according to claim 5, characterized in that: Install the temperature-sensitive optical cable installation components onto the leveling pads provided on the tunnel roof, install each temperature-sensitive optical cable installation component to the same height, and align them in the front-to-back direction.

8. The temperature-sensitive optical cable installation process according to claim 5, characterized in that: In step S40, the limiting hoops are installed one by one from the back to the front.

9. The temperature-sensitive optical cable installation process according to claim 5, characterized in that: When the temperature-sensitive optical cable installation assembly is installed on the tunnel roof, the temperature-sensitive optical cable installation assembly is installed upside down, with its second fixing plate placed above the first fixing plate, and its base is fixedly connected to the tunnel roof.

10. The temperature-sensitive optical cable installation process according to claim 5, characterized in that: In step S50, each time the second movement of a temperature-sensitive optical cable installation assembly is completed, a limiting hoop adjacent to the rear side is removed.

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