A cable trench integrated installation structure

Abstract

The application discloses a cable trench integrated mounting structure, which comprises fixing bolts, mounting wall plates, cable supports and cable fixing devices; the fixing bolts are embedded in the trench wall of the cable trench; bolt holes and support connecting structures are arranged on the mounting wall plates; the rear connecting ends of the cable supports are detachably connected with the mounting wall plates; a plurality of insertion slots are arranged on the upper mounting plates of the cable supports; cable accommodating cavities are arranged on the cable fixing devices; cable clamping devices are arranged in the cable accommodating cavities; and protruding parts matched with the insertion slots are further arranged on the lower parts of the cable fixing devices. The application can greatly reduce the working strength of construction personnel, reduce the use of large equipment such as cable traction devices, has the advantages of modularity, quick installation and high universality, and can stably and non-damagingly fix the cables.

Description

TECHNICAL FIELD

[0001] The present application relates to cable laying technology, in particular to a cable trench integrated installation structure. BACKGROUND

[0002] The cable trench is an underground pipeline for laying and replacing power or telecommunication cable facilities, and is an important enclosure structure of the laid cable facilities. In the existing cable trench, the cable support is generally pre-buried or evenly arranged on the cable trench wall by using expansion bolts, and then the cable is placed on the cable support. Since the cable is horizontally placed on the cable support, it is easy to slip off, so most of the cable supports are also provided with fixing devices such as clamps, straps and clamps. After the cable is straightened by using the cable traction device, the cable is fixed by using the above fixing devices.

[0003] The existing cable trench has complicated installation engineering of the cable support and the cable, and the working strength of the staff is extremely large. Moreover, the existing cable fixing device has defects such as unstable fixing and easy damage to the surface of the cable. SUMMARY

[0004] The purpose of the present application is to provide a cable trench integrated installation structure, which can greatly reduce the working strength of the construction personnel, reduce the use of large equipment such as cable traction device, has the advantages of modularity, rapid installation and high universality, and can realize stable and non-damaging fixing of the cable.

[0005] The present application adopts the following technical solutions:

[0006] A cable trench integrated installation structure comprises a fixing bolt, an installation wall plate, a cable support and a cable fixing device. The fixing bolt is pre-buried on the cable trench wall, and a plurality of fixing bolts are evenly arranged in a row from top to bottom, and a plurality of rows of fixing bolts are arranged on both sides of the cable trench wall along the front and rear direction of the cable trench. The installation wall plate is provided with a bolt hole matched with the fixing bolt, and a plurality of groups of support connecting structures matched with the cable support are evenly arranged on the installation wall plate. The cable support comprises a rear connecting end, an upper installation plate and a lower supporting part, the rear connecting end of the cable support is detachably connected with the installation wall plate through the support connecting structure, a plurality of groups of insertion slots are evenly arranged on the upper installation plate of the cable support along the left and right directions, and each insertion slot group is composed of a plurality of insertion slots arranged in front and back. The cable fixing device is provided with a cable accommodating cavity, the cable accommodating cavity is provided with a cable clamping device, the lower part of the cable fixing device is further provided with a protruding part matched with the insertion slot, and a plurality of cable fixing devices are arranged in a plurality of insertion slot groups on the upper installation plate of the cable support through the protruding part.

[0007] The cable fixing device comprises a cable fixing block, an upper surface of the cable fixing block is provided with a cable accommodating cavity, front and rear ends of the cable accommodating cavity are connected with front and rear end surfaces of the cable fixing block through cable line grooves, left and right side surfaces of the rear end of the cable accommodating cavity are inwardly retracted to form inclined surfaces, the rear end opening of the cable accommodating cavity and the inner diameter of the cable line groove are not less than the outer diameter of the cable, two cable clamping wedge blocks are symmetrically and slidably arranged at the rear part of the cable accommodating cavity, the cable clamping wedge blocks are trapezoidal blocks, the slope of the trapezoidal blocks is matched with the slope of the rear end inclined surface of the cable accommodating cavity, an arc-shaped groove is formed in the side surface of the trapezoidal block opposite to the slope, the cable is located in the cable accommodating cavity, and the cable is clamped by the left and right cable clamping wedge blocks through the arc-shaped grooves, the slopes of the two cable clamping wedge blocks are in close contact with the left and right side surfaces of the rear end of the cable accommodating cavity.

[0008] A top-tightening plug-in block is inserted into the front end of the cable accommodating cavity, a cable accommodating groove with a downward opening and matched with the outer diameter of the cable is vertically arranged in the middle part of the top-tightening plug-in block, vertical guide blocks are arranged on the left and right sides of the top-tightening plug-in block, guide sliding grooves matched with the vertical guide blocks are arranged on the two sides of the cable accommodating cavity, a top-tightening plug-in block through groove is formed in the bottom of the cable accommodating cavity corresponding to the lower part of the top-tightening plug-in block, and the rear end surface of the top-tightening plug-in block is in close contact with the front end surfaces of the two cable clamping wedge blocks through a cable supporting transition block.

[0009] The middle lower part of the rear surface of the top-tightening plug-in block is an inclined surface, the front surface of the cable supporting transition block is an inclined surface matched with the slope of the rear surface of the top-tightening plug-in block, a cable placing groove matched with the outer diameter of the cable is arranged in the middle part of the cable supporting transition block, the lower end of the top-tightening plug-in block forms a protruding part protruding from the lower end surface of the cable fixing device, and the rear surface of the slot on the upper mounting plate is an inclined surface matched with the slope of the rear surface of the top-tightening plug-in block.

[0010] Flexible insulating rubber layers are arranged on the surfaces of the arc-shaped grooves of the cable clamping wedge blocks, the cable accommodating groove of the top-tightening plug-in block and the cable placing groove of the cable supporting transition block.

[0011] The support connecting structure comprises a connecting plug-in block, the cross section of the connecting plug-in block is U-shaped, the upper and lower parts of the rear surface of the connecting plug-in block are respectively provided with upward and downward connecting plug-in block plug-in plates, a plurality of groups of plug-in plate accommodating groove groups are uniformly arranged on the mounting wall plate along the front and rear directions of the cable trench, each group of plug-in plate accommodating groove groups comprises a plurality of plug-in plate accommodating grooves arranged uniformly upward and downward and matched with the plug-in plate, the plug-in plate accommodating grooves are outwardly protruding and upwardly and downwardly open, and the rear connecting end of the cable support is inserted into the opening of the connecting plug-in block.

[0012] A plurality of groups of rear connecting end slots are symmetrically arranged on the front and rear inner surfaces in the opening of the connecting plug-in block along the horizontal direction, and the front and rear sides of the rear connecting end of the cable support are provided with rear connecting end plug-in plates matched with the rear connecting end slots.

[0013] The lower end of the mounting wall plate is provided with a water immersion sensor.

[0014] The cable placement slot of the cable support transition block is provided with a temperature sensor.

[0015] The upper end of the mounting wall plate is provided with a video acquisition device.

[0016] The present application adopts modular design, can realize the fast laying of cable in the cable trench, is applicable to the cable laying of different line diameters, has higher universality. The present application utilizes the cooperation of cable clamping wedge and the slope of cable accommodating cavity, can automatically clamp the cable when the cable falls under gravity and moves backward relative to the cable fixing device, designs the slope cooperation of the top pressing insert block and the cable support transition block, on the one hand, presses the cable clamping wedge to make it not displace to clamp the cable, on the other hand, utilizes the slope to form self-locking, prevents the top pressing insert block from slipping upward. Meanwhile, the slope cooperation of the lower end of the top pressing insert block and the slot slope on the cable support can guarantee that the top pressing insert block can be stably inserted on the cable support under the action of cable gravity, can also keep proper gap to adapt to the thermal expansion and cold contraction of the cable. Meanwhile, the slope cooperation of the lower end of the top pressing insert block and the slot slope on the cable support can also make the cable fixing device move forward within a certain range relative to the cable support when the top pressing insert block moves downward, to improve the cable straightening effect. In the present application, the cable fixing device has the characteristics that the cable will not back off after installation, so that the present device can keep the cable straight during the laying of the cable without using large cable traction device, can utilize the segmented installation mode, only uses rubber hammer to complete the cable fixing, greatly reduces the labor intensity of cable laying. The present application is also provided with a water immersion sensor, a temperature sensor and a video acquisition device, can timely alarm after the cable trench is accidentally filled with water, real-time monitor the temperature in the process of cable use and remotely monitor the cable use state in the cable trench. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structural schematic diagram of the cable fixing device in the present application;

[0018] Figure 2 It is the installation position schematic diagram of the cable fixing device in the present application

[0019] Figure 3 It is the structural schematic diagram of the cable support in the present application;

[0020] Figure 4 It is the structural schematic diagram of the mounting wall plate in the present application;

[0021] Figure 5 It is the structural schematic diagram of the connecting insert block in the present application. DETAILED DESCRIPTION

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0023] like Figures 1 to 5 As shown, the integrated cable trench installation structure of the present invention includes fixing bolts, mounting wall plate 1, cable bracket 2, and cable fixing device 3. The fixing bolts are pre-embedded in the cable trench wall, and several fixing bolts are evenly arranged in a row from top to bottom. Multiple rows of fixing bolts are provided on both sides of the cable trench wall along the front and back direction of the cable trench. The mounting wall plate 1 is provided with bolt holes 4 that match the fixing bolts. The mounting wall plate 1 can be quickly fixed to the cable trench wall using the fixing bolts, thereby eliminating the need for additional treatment of the trench wall during the cable trench construction process and saving construction costs.

[0024] The mounting wall panel 1 is also evenly provided with multiple sets of bracket connection structures that match the cable bracket 2, for quickly installing the cable bracket 2 onto the mounting wall panel 1. The cable bracket 2 includes a rear connecting end 5, an upper mounting plate 6, and a lower support part 7. The rear connecting end 5 of the cable bracket 2 is detachably connected to the mounting wall panel 1 through the bracket connection structure. The upper mounting plate 6 of the cable bracket 2 is evenly provided with several sets of slots along the left and right direction. Each slot set consists of several slots 8 arranged in a front-to-back manner. The cable fixing device 3 is provided with a cable receiving cavity 10, and a cable clamping device is provided inside the cable receiving cavity 10. The lower part of the cable fixing device 3 is also provided with a protrusion 16 that matches the slot 8. Multiple cable fixing devices 3 are respectively set in several sets of slots on the upper mounting plate 6 of the cable bracket 2 through the protrusions 16.

[0025] In this invention, the cable fixing device 3 includes a cable fixing block 9. A cable receiving cavity 10 is provided on the upper surface of the cable fixing block 9. The front and rear ends of the cable receiving cavity 10 are penetrated by cable grooves 11, allowing the cable to be placed inside the cable receiving cavity 10 through the cable grooves 11 at both ends. The left and right sides of the rear end of the cable receiving cavity 10 are both inwardly tapered to form inclined surfaces, and the rear opening of the cable receiving cavity 10 and the inner diameter of the cable groove 11 are not less than the outer diameter of the cable. Two cable clamping wedges 12 are also symmetrically slidably arranged at the rear of the cable receiving cavity 10. The cable clamping wedges 12 can be slidably connected via sliding blocks and sliding grooves. The cable clamping wedge 12 is a trapezoidal block. The slope of the trapezoidal block matches the slope of the rear end slope of the cable receiving cavity 10. An arc-shaped groove is formed on one side surface of the trapezoidal block opposite to the slope. The cable is located inside the cable receiving cavity 10, and both sides of the cable are clamped by the two left and right cable clamping wedges 12 through the arc-shaped groove. The slopes of the two cable clamping wedges 12 are in close contact with the left and right sides of the rear end of the cable receiving cavity 10. The cable clamping wedges 12 are set in accordance with the slopes of the left and right sides of the rear end of the cable receiving cavity 10, so that the cable can be automatically clamped by the cable clamping wedges 12 when the rear end of the cable falls due to gravity.

[0026] In this embodiment, the front end of the cable accommodating cavity 10 is inserted with a tight insertion block 13, the middle part of the tight insertion block 13 is vertically provided with a cable accommodating groove matched with the outer diameter of the cable and opening downward, the left and right sides of the tight insertion block 13 are provided with vertical guide blocks 14, the two sides of the cable accommodating cavity 10 are provided with guide sliding grooves matched with the vertical guide blocks 14, the bottom of the cable accommodating cavity 10 corresponding to the lower part of the tight insertion block 13 is provided with a tight insertion block through groove, and the rear end surface of the tight insertion block 13 is tightly connected with the front end surfaces of the two cable clamping wedge blocks 12 through the cable support transition block 15. The setting of the tight insertion block 13 can drive the cable clamping wedge block 12 to move backward through the cable support transition block 15, so as to clamp the cable and prevent the cable from loosening.

[0027] The middle lower part of the rear surface of the tight insertion block 13 is a slope, and the front surface of the cable support transition block 15 is a slope matched with the slope of the rear surface of the tight insertion block 13; the middle part of the cable support transition block 15 is provided with a cable placing groove matched with the outer diameter of the cable, the lower end of the tight insertion block 13 forms a protruding part 16 protruding from the lower end surface of the cable fixing device 3, and the rear surface 17 of the insertion slot 8 on the upper mounting plate 6 is a slope matched with the slope of the rear surface of the tight insertion block 13. The slope of the rear surface of the tight insertion block 13 cooperates with the slope of the front surface of the cable support transition block 15, which can automatically drive the cable clamping wedge block 12 to clamp the cable during the downward insertion of the tight insertion block 13, and can achieve the self-locking effect of the slope by setting appropriate roughness, thereby preventing the tight insertion block 13 from sliding upward. After the cable clamping wedge block 12 clamps the cable by lowering the tight insertion block 13 to a certain height, the lower end of the tight insertion block 13 is inserted into a suitable insertion slot 8 in the insertion slot group. Since the cable is installed on the cable support 2 through the cable fixing device 3, the two ends of the cable are simultaneously stressed, and under the gravity of the cable itself, the rear surface of the insertion slot 8 and the slope of the rear surface of the tight insertion block 13 can be stably arranged, and the rear surface of the insertion slot 8 and the slope of the rear surface of the tight insertion block 13 can realize the self-locking function of the slope by setting appropriate roughness, further preventing the tight insertion block 13 from sliding upward. At the same time, considering that the cable is also affected by thermal expansion and contraction, the length of the insertion slot 8 in the front-rear direction is slightly larger than the thickness of the lower end of the tight insertion block 13, which can also provide a small range of movement space to prevent cable damage caused by excessive tightness of the cable laying.

[0028] In the present application, the surfaces of the arc-shaped groove of the cable clamping wedge block 12, the cable accommodating groove of the tight insertion block 13 and the cable placing groove of the cable support transition block 15 are all provided with a flexible insulating rubber layer, which can increase the friction with the outer insulation layer of the cable and effectively prevent damage to the outer insulation layer of the cable, thereby significantly improving the service life of the outer insulation layer of the cable compared with the existing technology using hoops, straps, clamps and other means.

[0029] In the installation mode of the existing cable trench cable support 2, bolts are generally used to directly fix the cable support 2, the stress points are few, the stress area is small, and the fixed bolts are prone to loosening. In the present application, the support connecting structure comprises a connecting plug 18, the cross section of the connecting plug 18 is U-shaped, the upper and lower parts of the rear surface of the connecting plug 18 are respectively provided with upward and downward connecting plug insertion plates 19, and the connecting plug insertion plates 19 adopt right or upside-down "L" insertion plates. A plurality of groups of insertion plate accommodating groove groups are uniformly arranged on the installation wall plate 1 along the front-rear direction of the cable trench, each group of insertion plate accommodating groove groups comprises a plurality of insertion plate accommodating grooves 20 arranged uniformly upward and downward and matched with the connecting plug insertion plate 19, and the insertion plate accommodating grooves 20 are outwardly protruding and upwardly and downwardly open. The rear connecting end 5 of the cable support 2 is inserted into the opening of the connecting plug 18. In the present application, the same installation wall plate 1 is fixed by a plurality of fixed bolts, then the connecting plug 18 is inserted into the installation wall plate 1, and then the cable support 2 is inserted into the opening of the connecting plug 18, so that the downward force acting on the cable support 2 is evenly dispersed to the installation wall plate 1 and the plurality of fixed bolts for fixing the installation wall plate 1, and the vertical height, horizontal position and installation density of the cable support 2 are adjustable, which is more suitable for the use requirements of cables with different diameters.

[0030] In the present embodiment, the front and rear inner surfaces in the opening of the connecting plug 18 are symmetrically provided with a plurality of groups of rear connecting end insertion grooves 21 along the horizontal direction, and the front and rear sides of the rear connecting end 5 of the cable support 2 are provided with rear connecting end insertion plates 22 matched with the rear connecting end insertion grooves 21. The installer can conveniently and quickly install the cable support 2 through the plug-in mode.

[0031] In the present application, the lower end of the installation wall plate 1 is provided with a water immersion sensor for timely alarm after accidental water inflow in the cable trench. The cable placing groove of the cable support transition block 15 is provided with a temperature sensor, which can monitor the temperature of the cable in use in real time. The upper end of the installation wall plate 1 is also provided with a video acquisition device for remotely monitoring the use state of the cable in the cable trench. The use of the above-mentioned sensors is a conventional technology in the field, and will not be described here.

[0032] In use, the installation wall plate 1 is first installed on the cable trench wall by fixed bolts, then the connecting plug 18 is inserted into the corresponding insertion plate accommodating groove 20 on the installation wall plate 1 according to the diameter, number and distribution requirements of the cable to be laid, and then the cable support 2 is installed through the rear connecting end insertion groove 21, thereby completing the installation of the cable support 2. In the above process, the additional treatment process of the trench wall in the cable trench construction process is omitted, and the matching design and rapid installation can be realized according to the actual use requirements, thereby greatly reducing the construction cost and installation strength.

[0033] After the installation of the cable support 2 is completed, the cable fixing device 3 is installed on the cable according to the interval between two adjacent cable supports 2. During installation, the interval between two adjacent cable fixing devices 3 on the cable can be slightly smaller than the interval between two cable supports 2, such as 2-4 cm. Then the cable is manually pulled backward or the cable fixing device 3 is manually driven forward, so that the cable moves backward relative to the cable fixing device 3. Because the flexible insulation rubber layer provided on the arc-shaped slot of the cable clamping wedge 12 and the cable placement slot surface of the cable support transition block 15 can provide a large friction force, and the cable clamping wedge 12 also has a friction force with the left and right sides of the rear end of the cable accommodating cavity 10, the cable clamping wedge 12 can automatically clamp the cable and will not easily loosen at this time. After the cable clamping wedge 12 clamps the cable, a suitable cable support transition block 15 and a tight insertion block 13 are selected and placed into the cable accommodating cavity 10, so that the lower end of the tight insertion block 13 is located below the cable fixing device 3 through the tight insertion block through slot. Then the cable fixing device 3 is placed into the appropriate slot 8 on the upper mounting plate 6 of the cable support 2, and a rubber hammer is used to knock the upper end of the tight insertion block 13 downward. As the tight insertion block 13 moves downward, on the one hand, it can effectively drive the cable clamping wedge 12 to further clamp the cable, and on the other hand, it can use the inclined surface of the rear surface of the cable clamping wedge 12 and the rear surface of the slot 8 to drive the cable fixing device 3 to move forward relative to the upper mounting plate 6 of the cable support 2 to a certain extent, further achieving the straightening effect of the cable. The cable fixing device 3 installed on the upper mounting plate 6 of the cable support 2 can be automatically clamped by the cable clamping wedge 12 under the action of the downward force of the rear cable gravity, and can be stably inserted into the slot 8 of the cable support 2 by the inclined surface under the action of the front and rear cable gravity, that is, even if there is a gap between the front of the tight insertion block 13 and the tight insertion block through slot, it will not fall off. At the same time, the use of multiple inclined surfaces between different components plays the role of inclined surface self-locking and driving tightness, effectively ensuring the reliability of the cable fixation, preventing the cable from falling off due to loose fixation, and avoiding the damage to the outer insulation layer of the cable due to over-tight fixation and small contact area. In the present application, the cable fixing device 3 has the characteristic that the cable will not retreat after installation, so that the device can maintain the straightening state of the cable during cable laying without using a large cable traction device, and can use a segmented installation method to complete the cable fixation only by using a rubber hammer, greatly reducing the labor intensity of cable laying. The present application adopts a modular form and can realize rapid cable laying, which is suitable for cable laying of different diameters and has high universality.

Claims

1. A cable trench integrated installation structure, characterized by: The utility model provides a cable fixing device and cable support, and the cable fixing device comprises a cable fixing block, and the upper surface of the cable fixing block is provided with a cable accommodating cavity, the front and rear ends of the cable accommodating cavity are connected through cable line grooves on the front and rear end surfaces of the cable fixing block, the left and right side surfaces of the rear end of the cable accommodating cavity are inwardly contracted to form inclined surfaces, and the rear end opening of the cable accommodating cavity and the inner diameter of the cable line groove are not less than the outer diameter of the cable; two cable clamping wedge blocks are symmetrically and slidably arranged at the rear part of the cable accommodating cavity, the cable clamping wedge blocks are trapezoidal blocks, the slope of the trapezoidal blocks matches the slope of the rear end inclined surface of the cable accommodating cavity, an arc-shaped groove is formed in the side surface of the trapezoidal block opposite to the slope, the cable is arranged in the cable accommodating cavity, and the left and right sides of the cable are clamped by the left and right cable clamping wedge blocks through the arc-shaped grooves, and the slopes of the two cable clamping wedge blocks are in close contact with the left and right side surfaces of the rear end of the cable accommodating cavity. The front end of the cable accommodating cavity is provided with a jacking plug, the middle part of the jacking plug is vertically provided with a cable accommodating groove which matches the outer diameter of the cable and has an opening downward, the left and right sides of the jacking plug are provided with vertical guide blocks, the left and right sides of the cable accommodating cavity are provided with guide sliding grooves which match the vertical guide blocks, the bottom of the cable accommodating cavity corresponding to the lower part of the jacking plug is provided with a jacking plug through groove, and the rear end surface of the jacking plug is in close contact with the front end surfaces of the two cable clamping wedge blocks through a cable support transition block. The middle lower part of the rear surface of the jacking plug is an inclined surface, and the front surface of the cable support transition block is an inclined surface which matches the slope of the rear surface of the jacking plug; the middle part of the cable support transition block is provided with a cable placing groove which matches the outer diameter of the cable, the lower end of the jacking plug forms a protruding part which protrudes from the lower end surface of the cable fixing device, and the rear surface of the slot on the upper mounting plate is an inclined surface which matches the slope of the rear surface of the jacking plug. The lower end of the mounting wall plate is provided with a water immersion sensor. The surfaces of the arc-shaped grooves of the cable clamping wedge blocks, the cable accommodating grooves of the jacking plugs and the cable placing grooves of the cable support transition blocks are all provided with flexible insulating rubber layers.

2. The cable trough integrated mounting structure according to claim 1, characterized by: ​ 3. The cable trough integrated mounting structure according to claim 1, characterized by: The support connecting structure comprises a connecting plug, the cross section of the connecting plug is U-shaped, the upper and lower parts of the rear surface of the connecting plug are respectively provided with upward and downward connecting plug insertion plates, a plurality of groups of insertion plate accommodating groove groups are uniformly arranged on the mounting wall plate along the front-rear direction of the cable trench, each group of insertion plate accommodating groove groups comprises a plurality of insertion plate accommodating grooves which are uniformly arranged on the upper and lower parts and are matched with the insertion plates of the connecting plug, the insertion plate accommodating grooves are outwardly protruding and are open upward and downward, and the rear connecting end of the cable support is inserted into the opening of the connecting plug.

4. The cable trough integrated mounting structure according to claim 3, characterized by: The front and rear inner surfaces of the opening of the connecting plug are symmetrically provided with a plurality of groups of rear connecting end insertion grooves along the horizontal direction, and the front and rear sides of the rear connecting end of the cable support are provided with rear connecting end insertion plates which are matched with the rear connecting end insertion grooves.

5. The cable trough integrated mounting structure according to claim 1, characterized by: A temperature sensor is arranged in the cable placing groove of the cable support transition block.

6. The cable trough integrated mounting structure according to claim 1, characterized by: The upper end of the mounting wall plate is provided with a video acquisition device.

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