Urban road drainage pipeline groove excavation supporting device and construction method

Abstract

The invention relates to the technical field of road drainage trench construction, in particular to an urban road drainage pipeline trench excavation supporting device and a construction method.The urban road drainage pipeline trench excavation supporting device comprises a frame, an adjusting mechanism is fixedly installed in the middle of the frame, and lead screws are rotationally connected to the two ends of the interior of the frame; the threads of the two lead screws at the upper end and the lower end in the frame are opposite in screwing direction. Through threaded connection of the lead screw and the lifting frame and driving of the adjusting mechanism, the supporting and fixing plate can be tightly attached to the inner wall of the groove, stable telescopic supporting force is provided, meanwhile, the positioning set can lock the position of the adjusting wheel, the lead screw is prevented from rotating due to external force, it is ensured that the supporting and fixing assembly is stable, and a telescopic assembling set in the supporting and fixing mechanism is connected; a plurality of supporting points can be connected into a whole, when a certain supporting point inclines due to stress, the force can be transmitted to other supporting points to jointly resist external force, local collapse is avoided, and compared with an independent supporting structure in the prior art, the overall supporting strength and stability are remarkably improved.

Description

Technical Field

[0001] The present application relates to the technical field of road drainage ditch construction, and in particular to a supporting device and construction method for excavating drainage pipe trenches on urban roads. Background Art

[0002] In the current urban development process, urban renewal, as a key measure to improve urban quality and optimize urban functions, aims to systematically renovate and update urban roads, road networks, water, electricity, communications, and other material living environments, either partially or completely, thereby fundamentally improving urban fire protection, transportation, production, and living conditions. This is not only a reflection of the urban development process, but also a process of improving urban spatial planning, architecture, and social welfare facilities. However, the construction of drainage facilities in urban renewal is greatly limited by the presence of existing buildings and facilities on the ground. The construction process must accurately avoid underground facilities while minimizing the impact on surface facilities, which poses a huge challenge. Currently, trench excavation for drainage pipelines on existing urban roads primarily involves steel sheet pile support or slope excavation. Steel sheet pile support, with its length often exceeding 6 meters, places stringent requirements on the upper trench space. This makes it unsuitable for trenches with high-voltage power lines or dense trees above them. Slope excavation, on the other hand, occupies a large area of ​​the road surface, and faces numerous limitations in urban areas with high traffic volumes and demanding road occupation requirements, making it difficult to meet actual construction needs. The Chinese patent with the announcement number "CN117266187A" discloses a support device and construction method for excavating trenches for urban road drainage pipes. Although the device is composed of a finished support device composed of a support plate and a support tube with a telescopic structure, which realizes factory prefabrication and recycling, and improves the construction quality and efficiency to a certain extent, and the adjustable support can make the support plate close to the trench wall, and the lifting ring is convenient for lifting and disassembly, it still exposes significant defects in actual application. Its overall structure is relatively simple, and each support structure is set independently of each other. The support tube and the adjustable support lack mutually connected support structures. During the support process, multiple support forces cannot be integrated into an overall structure. This results in that when a certain support point tilts, the support forces of other support points cannot work together on the tilted point, and then the weak position is prone to collapse during the overall support period. It is difficult to connect the entire support structure into a stable overall support structure, which greatly limits the overall support capacity and cannot fully meet the requirements for support structure stability and reliability in the complex construction environment of the old city renovation drainage facility construction. Summary of the Invention

[0003] In order to improve the support and reinforcement stability of existing equipment, the present application provides an urban road drainage pipe trench excavation support device and construction method.

[0004] The application provides a city road drainage pipeline trench excavation supporting device and a construction method, which adopts the following technical scheme: a frame is arranged, an adjusting mechanism is fixedly arranged at the middle of the frame, lead screws are rotatably connected to the two ends of the frame, the threads of the two lead screws at the upper and lower ends of the frame are opposite to each other, a lifting frame is threadedly connected to the outer surface of the lead screw, a supporting assembly is fixedly arranged at the outer end of the lifting frame, and a connecting supporting mechanism is fixedly arranged at the two ends of the outer surface of the frame. The connecting supporting mechanism comprises a ring-shaped rail, fixed strips are fixedly arranged at the inner side of the ring-shaped rail in a ring-shaped manner at equal intervals, the fixed strips are fixedly connected to the two ends of the outer surface of the frame in a ring-shaped manner at equal intervals, arc-shaped sliding blocks are slidably connected to the inside of the ring-shaped rail, clamping rails are fixedly connected to the outer side of the arc-shaped sliding blocks, telescopic assembly groups are clamped and arranged in the clamping rails, and positioning clamping pieces are fixedly arranged at the top of the arc-shaped sliding blocks.

[0005] Optionally, the positioning clamping piece comprises a fixed arm, the fixed arm is fixedly arranged at the outer side of the top of the arc-shaped sliding block, the fixed arm is arranged in an L shape as a whole, a positioning screw rod is threadedly connected to the top of the fixed arm, the end of the positioning screw rod penetrates through the fixed arm, positioning holes are arranged at the top of the ring-shaped rail in a ring-shaped manner at equal intervals, and the end of the positioning screw rod is inserted into the inside of the positioning hole.

[0006] Optionally, the telescopic assembly group comprises a sleeve, a clamping block is fixedly arranged at one end of the sleeve, a sliding rod is slidably connected to the inner side of the sleeve, a clamping block is also fixedly arranged at the outer end of the sliding rod, one clamping block is inserted into the inside of the clamping rail, a limiting screw rod is threadedly connected to the end of the sleeve close to the sliding rod, the end of the limiting screw rod penetrates through the sleeve, limiting holes are arranged at the top of the sliding rod in a linear manner at equal intervals, and the end of the limiting screw rod is inserted into the inner side of the limiting hole.

[0007] Optionally, clamping screw rods are threadedly connected to the two sides of the clamping rail, the ends of the clamping screw rods penetrate through the clamping rail, clamping holes are arranged at the two ends of the clamping block, and the ends of the clamping screw rods are inserted into the inside of the clamping hole.

[0008] Optionally, the positioning screw rod, the limiting screw rod and the clamping screw rod are all hand-tightening screw rods, the inner cross sections of the sliding rod and the sleeve are all arranged in a regular hexagonal shape, and the top view shapes of the clamping block and the clamping rail are both arranged in a convex character shape.

[0009] Optionally, the adjustment mechanism includes a square frame, which is fixedly installed in the inner middle part of the frame, an adjustment group is provided on the front of the square frame, a positioning group is fixedly installed on the bottom of the adjustment group, the inner front side of the frame is rotatably connected to a driving bevel gear, the bottom of the frame is rotatably connected to a driven bevel gear, the driving bevel gear and the driven bevel gear are meshed with each other, a rotating shaft is fixedly installed in the inner middle part of the driven bevel gear, the rotating shaft is rotatably connected to the inner side of the square frame, and both ends of the rotating shaft are respectively fixedly connected to the inner end of the screw rod.

[0010] Optionally, the adjustment group includes a fixed disk, which is fixedly installed on the front of the frame, the front of the fixed disk is rotatably connected to the adjusting wheel, the front of the adjusting wheel is fixedly connected to the connecting disk, one side of the connecting disk is rotatably connected to the rotating block, the outer side of the rotating block is rotatably connected to the connecting block, the bottom of the connecting block is rotatably connected to the crank handle, and the rear side of the adjusting wheel is fixedly connected to the front of the active bevel gear.

[0011] Optionally, the positioning group includes a guide rail and a limiting hole, the guide rail is fixedly connected to the bottom of the fixed plate, the interior of the guide rail is fixedly connected to a limiting spring, the bottom of the limiting spring is fixedly connected to a movable block, the front of the movable block is fixedly connected to a clamping frame, the limiting holes are arranged in a ring shape with equal intervals and are opened on the outer surface of the adjusting wheel, and the outer end of the clamping frame is inserted into the interior of the limiting hole.

[0012] Optionally, the support assembly includes a fixing seat, which is fixedly connected to the outer end of the lifting frame, and the outer side of the fixing seat is provided with mounting grooves arranged in a ring at equal intervals, and a mounting block is inserted into the inside of the mounting groove. The bottom of the mounting block is fixedly connected to a magnetic block, the fixing seat is made of magnetic iron material, and the outer side of the mounting block is fixedly connected to a supporting plate.

[0013] A construction and use method of a support device for excavating a trench for drainage pipes on urban roads, comprising the following steps: Step 1: Install the support plate. Insert the mounting block into the mounting slot on the outside of the fixing base. Use the adsorption effect of the magnetic block and the fixing base to install the support plate on the outside of the fixing base to complete the initial installation of the support plate. Step 2: Unlock the adjustment mechanism and turn the crank handle to make the operating crank handle perpendicular to the adjustment wheel through the connecting block and the rotating block; pull the bottom clamping frame to drive the movable block downward, so that the clamping frame is separated from the limited hole on the outer surface of the adjustment wheel, thereby releasing the lock on the adjustment wheel; Step three: the adjustment of the supporting assembly, pull the handle to drive the adjusting wheel to rotate, the driving bevel gear on the rear side of the adjusting wheel rotates and engages with the driven bevel gear, driving the rotating shaft to rotate, since the rotating shaft is fixedly connected with the screw rod, the rotation of the screw rod promotes the linear motion of the lifting frame along the screw rod, and since the screw rods are opposite in screw direction, the supporting plate moves outward until it is attached to the inner wall of the groove; Step four: locking the adjusting mechanism, when the supporting plate reaches the appropriate position, loosen the clamping frame, reset the limiting spring, and insert the clamping frame into the limiting hole on the outer surface of the adjusting wheel under the action of the limiting spring to position the adjusting wheel and prevent the screw rod from rotating due to external force; Step five: positioning the connecting supporting mechanism, adjust the connecting direction by rotating the positioning screw at the top of the fixed arm to make the end thereof inserted into the positioning hole at the top of the ring-shaped rail, so as to position the arc-shaped sliding block; Step six: connecting the telescopic assembly, adjust the extension length of the sliding rod in the sleeve, rotate the limiting screw to make the end thereof inserted into the limiting hole at the top of the sliding rod to lock the length, insert the clamping blocks at the two ends of the telescopic assembly into the clamping rails of the two frames, and rotate the clamping screw to make the end thereof inserted into the clamping holes at the two ends of the clamping blocks, so as to stably connect the telescopic assembly with the clamping rails and realize the connection of multiple supporting points.

[0014] In summary, the present application has the following beneficial technical effects: The device can make the supporting plate closely attached to the inner wall of the groove by the threaded connection of the screw rod and the lifting frame and the cooperation of the adjusting mechanism, can provide stable telescopic supporting force, can lock the position of the adjusting wheel by the positioning group to prevent the screw rod from rotating due to external force, can ensure the stability of the supporting assembly, can connect multiple supporting points into a whole by the telescopic assembly in the connecting supporting mechanism, can transmit force to other supporting points when a supporting point is inclined under force, can resist external force together to avoid local collapse, and can significantly improve the overall supporting strength and stability compared with the independent supporting structure in the prior art. The adjusting mechanism of the device can flexibly adjust the height of the supporting assembly according to the depth of the groove during application, the arc-shaped sliding block of the connecting supporting mechanism can drive the telescopic assembly to rotate around the frame to adjust the connection direction, the length of the telescopic assembly itself is adjustable, the device can adapt to the construction requirements of grooves of different widths, shapes and directions, and when the groove width changes or there are obstacles around, the position of the supporting assembly and the connecting supporting mechanism can be quickly adjusted to effectively avoid construction restrictions and meet the requirements of complex construction environments of urban road drainage pipeline groove excavation. During the application of this device, its supporting components are installed by magnetic attraction. No additional tools are required, and the supporting plates can be installed and disassembled quickly. Support plates of different shapes and sizes can be replaced according to needs. The assembly operation of the connecting supporting mechanism is simple, and positioning and connection can be achieved by turning the screw. The components of the device can be recycled to reduce material waste. At the same time, the operation is simple and does not require professional technicians, which reduces labor costs, improves construction efficiency overall, shortens construction period, and reduces the comprehensive cost generated by construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the embodiment of the present application; Figure 2 This is a schematic diagram of the structure in the extended state in an embodiment of the present application; Figure 3 This is a schematic diagram of the combined state structure in an embodiment of the present application; Figure 4 This is a schematic diagram of the structure of the frame and the adjustment mechanism in the embodiment of the present application; Figure 5 This is a schematic diagram of the structure of the support assembly in the embodiment of the present application in a disassembled state; Figure 6 This is a schematic diagram of the overall structure of the connecting and supporting mechanism in an embodiment of the present application; Figure 7 This is a schematic diagram of the structure of the connecting and supporting mechanism in the embodiment of the present application in a disassembled state; Figure 8 In the embodiment of this application Figure 3 A schematic diagram of the enlarged structure at point A; Figure 9 In the embodiment of this application Figure 4 A schematic diagram of the enlarged structure at point B; Figure 10 In the embodiment of this application Figure 5 Enlarged structural diagram at C.

[0016] Reference numerals: 1. frame; 2. adjustment mechanism; 21. frame; 22. adjustment group; 221. fixed disk; 222. adjustment wheel; 223. connecting disk; 224. rotating block; 225. connecting block; 226. crank handle; 23. positioning group; 231. guide rail; 232. limiting hole; 233. limiting spring; 234. movable block; 235. clamping frame; 24. driving bevel gear; 25. driven bevel gear; 26. rotating shaft; 3. screw rod; 4. lifting frame; 5. supporting assembly; 51. Fixing seat; 52. Mounting slot; 53. Mounting block; 54. Magnetic block; 55. Support plate; 6. Connecting support mechanism; 61. Annular rail; 62. Fixing bar; 63. Arc-shaped sliding block; 64. Clamping rail; 65. Telescopic assembly group; 651. Sleeve; 652. Clamping block; 653. Slide rod; 654. Limiting screw; 655. Limiting hole; 66. Positioning clamp; 661. Fixed arm; 662. Positioning screw; 663. Clamping hole; 664. Positioning hole; 665. Clamping screw. DETAILED DESCRIPTION

[0017] The following is combined with Figures 1-10 This application is described in further detail.

[0018] The present application discloses a supporting device and construction method for trench excavation of drainage pipes in urban roads. Figures 1-10 As shown, it includes a frame 1, an adjustment mechanism 2 is fixedly installed in the middle of the frame 1, and screw rods 3 are rotatably connected to both ends of the interior of the frame 1. The threads of the two screw rods 3 at the upper and lower ends of the frame 1 rotate in opposite directions. The outer surface of the screw rod 3 is threadedly connected to a lifting frame 4, and a supporting assembly 5 is fixedly installed on the outer end of the lifting frame 4. Connecting supporting mechanisms 6 are fixedly installed on both ends of the outer surface of the frame 1; The connecting support mechanism 6 includes a ring rail 61, and the inner side of the ring rail 61 is fixedly installed with fixed bars 62 arranged in a ring at equal intervals. The fixed bars 62 are fixedly connected to the outer surface of the frame 1 at both ends. The inside of the ring rail 61 is slidably connected with an arc-shaped sliding block 63, and the outer side of the arc-shaped sliding block 63 is fixedly connected with a clamping rail 64. The inner clamping of the clamping rail 64 is installed with a telescopic assembly group 65. The top of the arc-shaped sliding block 63 is fixedly connected with a positioning clamp 66. When the urban road drainage pipe trench excavation support device is working, the adjustment mechanism is rotated to adjust the support device. 2, drives the adjusting wheel 222 to rotate through the connecting block 225 and the rotating block 224, and the active bevel gear 24 on the rear side of the adjusting wheel 222 rotates accordingly and meshes with the driven bevel gear 25, transmitting power to the driven bevel gear 25, and the driven bevel gear 25 drives the rotating shaft 26 to rotate. Since both ends of the rotating shaft 26 are fixedly connected to the screw rod 3, and the screw rods 3 at the upper and lower ends of the frame 1 have opposite rotation directions, the rotation of the screw rod 3 causes the lifting frame 4 to make a linear motion along the screw rod 3, driving the supporting plate 55 of the supporting assembly 5 to move outward until it fits the inner wall of the groove; when the supporting plate 55 is in contact with the inner wall of the groove, the lifting frame 4 can move linearly along the screw rod 3. After the fixing plate 55 reaches the appropriate position, the clamping frame 235 of the positioning group 23 is inserted into the limiting hole 232 on the outer surface of the adjusting wheel 222 under the action of the limit spring 233 to position the adjusting wheel 222 to prevent the screw rod 3 from rotating due to external force. In terms of connection and support, the arc-shaped sliding block 63 is adjusted to slide in the annular rail 61, driving the clamping rail 64 and the telescopic assembly group 65 to rotate around the frame 1 to adjust the connection direction, and the positioning screw 662 at the top of the rotating fixed arm 661 is inserted into the positioning hole 664 at the top of the annular rail 61 to achieve the positioning of the arc-shaped sliding block 63. ; Adjust the protruding length of the slide rod 653 in the telescopic assembly group 65 in the sleeve 651, rotate the limit screw 654 to lock the length, insert the blocks 652 at both ends of the telescopic assembly group 65 into the inside of the rails 64 of the two frames 1, rotate the clamping screw 665 to insert its end into the clamping holes 663 at both ends of the block 652, and realize a stable connection between the telescopic assembly group 65 and the rail 64, thereby connecting multiple support points into a whole. When a certain support point is tilted by force, the force can be transmitted to other support points through the telescopic assembly group 65, so that the entire support structure can jointly resist external forces.

[0019] Please refer to Figures 1-8The positioning clamp 66 comprises a fixed arm 661 fixedly installed at the outer top of the arc-shaped sliding block 63, the fixed arm 661 is in an L-shaped arrangement as a whole, a positioning screw 662 is threadedly connected to the top of the fixed arm 661, the end of the positioning screw 662 penetrates through the fixed arm 661, a plurality of positioning holes 664 are arranged at the top of the ring-shaped rail 61 in a ring shape at equal intervals, the end of the positioning screw 662 is inserted into the inside of the positioning hole 664, the telescopic assembly group 65 comprises a sleeve 651, one end of the sleeve 651 is fixedly installed with a clamping block 652, the inside of the sleeve 651 is slidably connected with a sliding rod 653, the outer end of the sliding rod 653 is also fixedly installed with a clamping block 652, one clamping block 652 is inserted into the inside of the clamping rail 64, the top of the sleeve 651 near one end of the sliding rod 653 is threadedly connected with a limiting screw 654, the end of the limiting screw 654 penetrates through the sleeve 651, a plurality of limiting holes 655 are arranged at the top of the sliding rod 653 in a linear arrangement at equal intervals, the end of the limiting screw 654 is inserted into the inside of the limiting hole 655, during use of the device, the positioning clamp 66 and the telescopic assembly group 65 are used to work cooperatively to guarantee the connection and positioning of the supporting device, in the positioning clamp 66, the L-shaped fixed arm 661 is fixed to the outer top of the arc-shaped sliding block 63, when the arc-shaped sliding block 63 slides in the ring-shaped rail 61, the clamping rail 64 and the telescopic assembly group 65 are adjusted to a suitable connection direction, then the positioning screw 662 at the top of the fixed arm 661 is rotated, so that the end of the positioning screw 662 penetrates through the fixed arm 661 and is inserted into the positioning hole 664 at the top of the ring-shaped rail 61, the fastening property of the threaded connection is utilized to stably fix the arc-shaped sliding block 63 in position on the ring-shaped rail 61, so as to fix the connection direction of the clamping rail 64 and the telescopic assembly group 65, in the telescopic assembly group 65, the sliding rod 653 can slide in the sleeve 651, the sliding length of the sliding rod 653 in the sleeve 651 is adjusted according to the supporting requirement of different intervals, after adjustment, the limiting screw 654 at the top of the sleeve 651 is rotated, so that the end of the limiting screw 654 penetrates through the sleeve 651 and is inserted into the corresponding limiting hole 655 at the top of the sliding rod 653, the sliding of the sliding rod 653 relative to the sleeve 651 is limited, and the length of the telescopic assembly group 65 is locked; when connected and installed, the clamping blocks 652 at the two ends of the telescopic assembly group 65 are respectively inserted into the inside of the clamping rails 64 of the two frames 1, then the clamping screws 665 at the two sides of the clamping rail 64 are rotated, so that the ends of the clamping screws 665 penetrate through the clamping rail 64 and are inserted into the clamping holes 663 at the two ends of the clamping block 652, the stable clamping of the telescopic assembly group 65 and the clamping rail 64 is realized, and then a plurality of supporting points are connected into an integral structure.

[0020] Please refer to Figures 6-8, both sides of the rail 64 are threadedly connected with a clamping screw 665, the end of the clamping screw 665 passes through the rail 64, both ends of the clamping block 652 are provided with a clamping hole 663, the end of the clamping screw 665 is inserted into the inside of the clamping hole 663, the positioning screw 662, the limiting screw 654 and the clamping screw 665 are all configured as hand-tightening screws, the internal cross-sectional shape of the sliding rod 653 and the sleeve 651 are both configured as a regular hexagon, and the top view shape of the clamping block 652 and the rail 64 are It is set in a convex shape. During the installation process of the support device, the rail 64, the block 652 and various screws work together to achieve a stable connection. The two sides of the rail 64 are threadedly connected to the hand-tightened clamping screws 665. When the block 652 of the telescopic assembly group 65 is inserted into the rail 64, the clamping holes 663 at both ends of the block 652 correspond to the positions of the clamping screws 665. By manually twisting the clamping screws 665, the ends of the clamping screws 665 pass through the rail 64 and are inserted into the clamping holes 663, and the clamping screws 665 are tightened by threads. The clamping block 652 is firmly fixed in the rail 64, thereby realizing the stable installation of the telescopic assembly group 65 and the rail 64. The positioning screw 662 and the limit screw 654 are also designed with hand screwing, which is convenient for construction workers to operate quickly. When adjusting the position of the arc-shaped sliding block 63 and the length of the telescopic assembly group 65, the positioning screw 662 is manually screwed into the positioning hole 664 of the ring rail 61, and the limit screw 654 is screwed into the limit hole 655 of the slide bar 653 to realize rapid positioning. Position and lock. In addition, the internal cross-section of the slide rod 653 and the sleeve 651 is a regular hexagon. This shape design limits the rotation of the slide rod 653 in the sleeve 651, so that it can only slide along the axial direction, ensuring accurate length adjustment; the block 652 and the rail 64 are convex in top view. This special shape enables the block 652 to form a snap-fit ​​structure with the rail 64, and cooperates with the snap-fit ​​screw 665 to further enhance the stability of the connection, preventing the telescopic assembly group 65 from escaping from the rail 64 when subjected to force.

[0021] Please refer to Figures 1-5 and Figures 7-10The adjusting mechanism 2 includes a square frame 21, which is fixedly installed in the middle of the inner side of the frame 1. An adjusting group 22 is provided on the front of the square frame 21, and a positioning group 23 is fixedly installed on the bottom of the adjusting group 22. The front side of the inner part of the frame 21 is rotatably connected to the active bevel gear 24, and the bottom of the inner part of the frame 21 is rotatably connected to the driven bevel gear 25. The active bevel gear 24 and the driven bevel gear 25 are meshed with each other. A rotating shaft 26 is fixedly installed on the middle part of the inner side of the driven bevel gear 25. The rotating shaft 26 is rotatably connected to the inner side of the frame 21, and the two ends of the rotating shaft 26 are respectively fixedly connected to the inner end of the screw rod 3. The adjusting group 22 includes a fixed plate 221, which is fixedly installed on the front side of the frame 21. The front side of the fixed plate 221 is rotatably connected to the adjusting wheel 222. The adjusting wheel The front of 222 is fixedly connected with a connecting disk 223, one side of the connecting disk 223 is rotatably connected with a rotating block 224, the outer side of the rotating block 224 is rotatably connected with a connecting block 225, and the bottom of the connecting block 225 is rotatably connected with a crank handle 226. The rear side of the adjusting wheel 222 is fixedly connected to the front of the active bevel gear 24. The positioning group 23 includes a guide rail 231 and a limiting hole 232. The guide rail 231 is fixedly connected to the bottom of the fixed disk 221. The inside of the guide rail 231 is fixedly connected to the limiting spring 233. The bottom of the limiting spring 233 is fixedly connected to a movable block 234. The front of the movable block 234 is fixedly connected with a clamping frame 235. The limiting holes 232 are arranged in a ring at equal intervals and are opened on the outer surface of the adjusting wheel 222. The outer end of the clamping frame 235 is inserted Inside the limited hole 232, when the adjusting mechanism 2 is in use, the operation of the crank handle 226 drives the connecting block 225 to move, and the rotation of the connecting block 225 causes the rotating block 224 to be linked, thereby driving the connecting disk 223 and the adjusting wheel 222 to rotate. Since the rear side of the adjusting wheel 222 is fixedly connected to the active bevel gear 24, the active bevel gear 24 rotates accordingly, and the active bevel gear 24 and the driven bevel gear 25 mesh with each other, transmitting power to the driven bevel gear 25, and the driven bevel gear 25 drives the rotating shaft 26 in the middle of the inner side to rotate. The two ends of the rotating shaft 26 are fixedly connected to the inner end of the screw rod 3, thereby driving the screw rod 3 to rotate synchronously. When the screw rod 3 rotates, the lifting frame 4 threadedly connected to the screw rod 3 makes a linear motion along the screw rod 3. Because the screw rods 3 at the upper and lower ends in the frame 1 are threaded, the lifting frame 4 threadedly connected to the screw rod 3 makes a linear motion along the screw rod 3. When the rotation direction is opposite, the two lifting frames 4 move in opposite directions, driving the supporting plate 55 of the supporting assembly 5 to move outward until it fits the inner wall of the groove. During the adjustment process, the clamping frame 235 at the bottom is pulled out to drive the movable block 234 to move downward, so that the clamping frame 235 disengages from the limiting hole 232 on the outer surface of the adjusting wheel 222, and releases the lock on the adjusting wheel 222 so that the adjusting wheel 222 can rotate freely; when the supporting plate 55 reaches the appropriate position, the clamping frame 235 is released, the limiting spring 233 is reset, and the movable block 234 is pushed upward. The clamping frame 235 is inserted into the limiting hole 232 on the outer surface of the adjusting wheel 222 under the action of the limiting spring 233, positioning the adjusting wheel 222, preventing the screw rod 3 from rotating due to external force, and ensuring the stable position of the supporting assembly 5.

[0022] Please refer to Figures 1-5 The support assembly 5 includes a fixing seat 51, which is fixedly connected to the outer end of the lifting frame 4. The outer side of the fixing seat 51 is arranged in a ring with equal intervals to provide mounting grooves 52. The inside of the mounting groove 52 is inserted with a mounting block 53. The bottom of the mounting block 53 is fixedly connected by a magnetic block 54. The fixing seat 51 is made of a magnetic iron material. The outer side of the mounting block 53 is fixedly connected with a supporting plate 55. During use, when the supporting assembly 5 is working, the magnetic principle is used to achieve convenient installation and stable support of the supporting plate 55. The fixing seat 51 is fixed to the outer end of the lifting frame 4, and the mounting grooves 52 arranged in a ring with equal intervals on its outer side provide an insertion guide for the mounting block 53. The bottom of the mounting block 53 is connected to the magnetic block 54. The fixing seat 51 is made of a magnetic iron material. When the mounting block 53 is inserted into the mounting groove 52, The magnetic block 54 and the fixing seat 51 generate magnetic attraction, so that the mounting block 53 is firmly fixed on the fixing seat 51, and then the supporting plate 55 on the outside of the mounting block 53 is installed in place. During the trench excavation support process, the screw rod 3 is driven to rotate by the adjustment mechanism 2, and the screw rod 3 drives the lifting frame 4 to make a linear motion along it, and the fixing seat 51 connected to the lifting frame 4 moves accordingly, thereby driving the supporting plate 55 to move and fit the inner wall of the trench. At this time, the supporting plate 55, supported by the lifting frame 4, transmits the pressure from the trench wall to the fixing seat 51, and the fixing seat 51 then transmits the force to the entire support device frame 1 through the lifting frame 4. At the same time, the adsorption force of the magnetic block 54 and the fixing seat 51 ensures that the supporting plate 55 will not fall off easily, thereby ensuring the stability and reliability of the supporting assembly 5 in the process of supporting the trench.

[0023] A construction and use method of a support device for excavating a trench for drainage pipes on urban roads, comprising the following steps: Step 1: Install the support plate 55. Insert the mounting block 53 into the mounting slot 52 on the outside of the fixing base 51. Utilize the adsorption effect of the magnetic block 54 and the fixing base 51 to install the support plate 55 on the outside of the fixing base 51. This completes the initial installation of the support plate 55. Step 2: Unlock the adjustment mechanism 2 and rotate the crank handle 226 to make the operating crank handle 226 perpendicular to the adjustment wheel 222 through the connecting block 225 and the rotating block 224; pull the bottom clamping frame 235 to drive the movable block 234 downward, so that the clamping frame 235 is separated from the limiting hole 232 on the outer surface of the adjustment wheel 222, thereby releasing the lock on the adjustment wheel 222; Step 3: Adjust the support assembly 5. Pull the crank handle 226 to rotate the adjusting wheel 222. The driving bevel gear 24 on the rear side of the adjusting wheel 222 rotates accordingly and meshes with the driven bevel gear 25, driving the rotating shaft 26 to rotate. Since both ends of the rotating shaft 26 are fixedly connected to the screw rod 3, the rotation of the screw rod 3 causes the lifting frame 4 to move linearly along the screw rod 3. Since the threads of the two screw rods 3 rotate in opposite directions, the supporting plate 55 is driven to move outward until it fits against the inner wall of the groove. Step 4: The adjustment mechanism 2 is locked. When the support plate 55 reaches the appropriate position, the clamping frame 235 is released, the limit spring 233 is reset, and the clamping frame 235 is inserted into the limiting hole 232 on the outer surface of the adjustment wheel 222 under the action of the limit spring 233, positioning the adjustment wheel 222 to prevent the screw rod 3 from rotating due to external force; Step 5: Connect the support mechanism 6 to position it. Adjust the arc-shaped sliding block 63 to slide within the ring rail 61, driving the rail 64 and the telescopic assembly 65 to rotate around the frame 1. After adjusting to the appropriate connection direction, rotate the positioning screw 662 at the top of the fixed arm 661 so that its end is inserted into the positioning hole 664 at the top of the ring rail 61 to achieve the positioning of the arc-shaped sliding block 63. Step 6: Connect the telescopic assembly group 65, adjust the protruding length of the slide rod 653 in the sleeve 651, rotate the limit screw 654 so that its end is inserted into the limit hole 655 at the top of the slide rod 653 to lock the length, insert the blocks 652 at both ends of the telescopic assembly group 65 into the inside of the rails 64 of the two frames 1, rotate the clamping screw 665 so that its end is inserted into the clamping holes 663 at both ends of the block 652, complete the stable connection between the telescopic assembly group 65 and the rail 64, and realize the connection of multiple support points.

[0024] The implementation principle of the supporting device and construction method for trench excavation of urban road drainage pipes in the embodiment of the present application is as follows: during the use of the device, the square frame 21 is fixed to the middle part of the inner side of the frame 1 to provide installation space for the internal transmission structure. During operation, first, the installation block 53 can be inserted into the inside of the installation groove 52. At this time, the magnetic block 54 and the fixing seat 51 are adsorbed, and then each supporting plate 55 can be installed on the outside of the fixing seat 51. When the supporting plate 55 is installed, the bottom supporting plate 55 is attached to the inner part of the required support. At this time, the crank handle 226 can be rotated, and the connecting block 225 and the rotating block 224 can be rotated to rotate the operating crank handle 226 and make it perpendicular to the adjusting wheel 222. When the adjusting wheel 222 is vertical, the bottom can be pulled out. The clamping frame 235 drives the movable block 234 to move downward, and the downward movement of the movable block 234 causes the clamping frame 235 to disengage from the inside of the limiting hole 232. At this time, the crank handle 226 can be pulled to drive the adjusting wheel 222 to rotate. The rotation of the adjusting wheel 222 can drive the active bevel gear 24 on the rear side of the adjusting wheel 222 to rotate. The active bevel gear 24 rotates accordingly and meshes with the driven bevel gear 25, transmitting power to the driven bevel gear 25, and the driven bevel gear 25 drives the rotating shaft 26 to rotate. Both ends of the rotating shaft 26 are fixedly connected to the screw rod 3, driving the screw rod 3 to rotate synchronously. Since the screw rod 3 is threadedly connected to the lifting frame 4, the rotation of the screw rod 3 causes the lifting frame 4 to make a linear motion along the screw rod 3. Since the threads of the two screw rods 3 rotate in opposite directions, the two lifting frames 4 can be quickly driven toward the outside. The sliding displacement can drive the supporting plate 55 to move outward, and the supporting plate 55 moves outward to fit the two inner walls of the groove. At this time, the lifting frame 4 provides a telescopic supporting force, which can enable the supporting plate 55 to stably support the interior of the reinforced groove. Its overall adjustable setting can flexibly adapt to grooves of different depths. At the same time, the guide rail 231, the limit spring 233, the movable block 234 and the clamping frame 235 of the positioning group 23 work together. When the adjusting wheel 222 is rotated to the appropriate position, the clamping frame 235 can be released. At this time, the limit spring 233 is reset, and the clamping frame 235 is inserted into the limiting hole 232 on the outer surface of the adjusting wheel 222 under the action of the limit spring 233, positioning the adjusting wheel 222, and preventing the screw rod 3 from being affected by external forces. The screw rod 3 is designed to be threaded with the lifting frame 4, and the screw rod 3 is locked and fixed, so that it can form a stable supporting structure, and the whole can be better supported and strengthened. During the use, when the supporting component 5 is installed, the fixing seat 51 at the outer end of the lifting frame 4 is tightly connected with the magnetic block 54 at the bottom of the mounting block 53 through the magnetic effect. The mounting groove 52 opened on the outside of the fixing seat 51 is used to guide the insertion of the mounting block 53. The magnetic effect of the magnetic block 54 and the fixing seat 51 ensures that the supporting plate 55 is firmly installed, and the installation can be completed quickly without additional tools. The supporting plate 55 on the outside of the mounting block 53 can be selected according to the actual shape of the groove wall and the support requirements. Plates of different shapes and sizes can be selected to improve the support effect.The design of the rotating crank handle 226 allows the crank handle 226 to automatically fall down after adjustment, thereby preventing the crank handle 226 from being vertically protruding after adjustment to support foreign currency. During the application of this device, the setting of its connecting support mechanism 6 further enhances the overall stability and adaptability of the support device. During use, the annular rail 61 is fixed to the two ends of the outer surface of the frame 1 through the fixing strip 62, providing a sliding track for the arc-shaped sliding block 63. The arc-shaped sliding block 63 slides in the annular rail 61. During use, the arc-shaped sliding block 63 can be adjusted to slide to assist in adjusting the driving rail 64 and the telescopic assembly group 65 to rotate around the frame 1. The telescopic assembly group 65 of this device can flexibly adjust the connection direction so that it can adapt to connection supports in different directions, and can flexibly adapt to different directions during overall use. The grooves of the same working conditions, and after moving into position, the positioning screw 662 on the top of the fixed arm 661 can be rotated so that its end is inserted into the positioning hole 664 on the top of the annular rail 61 to realize the positioning of the arc-shaped sliding block 63. After the adjustment and positioning are completed, the clamping blocks 652 at both ends of the telescopic assembly group 65 can be respectively inserted into the inside of the clamping rails 64 of the two frames 1 to complete the connection and support between the frames 1 of the device, so that the orientation of each connecting and supporting mechanism 6 can be flexibly adjusted after the device is installed, which facilitates the connection and positioning of each connecting and supporting mechanism 6 at different positions, and can promote it to form a stable and high-strength supporting frame 1; During use, during splicing and installation, the telescopic splicing group 65 is composed of a sleeve 651 and a sliding rod 653, the sliding rod 653 can slide in the sleeve 651, by adjusting the extension length of the sliding rod 653 in the sleeve 651, the overall length of the telescopic splicing group 65 can be changed to adapt to the support requirements of different distances, after adjusting to the appropriate length, rotating the limiting screw 654 to insert the end into the limiting hole 655 at the top of the sliding rod 653, length locking is completed, during use and installation, when the clamping block 652 is inserted into the clamping rail 64, rotating the clamping screw 665 to insert the end into the clamping hole 663 at both ends of the clamping block 652, the stable connection of the telescopic splicing group 65 and the clamping rail 64 is realized, through the connection of multiple telescopic splicing groups 65, each support point of the device can be connected into a whole structure, and the adjustable design can flexibly adapt to the assembly connection in different directions, when the pressure change on one side of the groove causes the support point to tilt, the telescopic splicing group 65 on the tilted side is deformed under stress, and the force is transmitted to other connected telescopic splicing groups 65, thereby forming a whole body that is related to each other, resisting external force together, avoiding the collapse of the whole structure due to the problem of a support point, in the actual construction process, if the width of the groove changes, the position of the lifting frame 4 can be adjusted again through the adjusting mechanism 2 to drive the support assembly 5 to move, so that the support plate 55 is tightly attached to the new groove wall, if the surrounding environment has special restrictions on part of the support device, the position of the arc-shaped sliding block 63 of the connecting support mechanism 6 and the length of the telescopic splicing group 65 can be adjusted to avoid obstacles and ensure the normal work of the support device, in summary, the urban road drainage pipeline trench excavation support device cooperates with each structure to effectively solve the problem of independent support structure and limited overall support capacity in the prior art, realize efficient, stable and flexible trench support, and meet the complex requirements of urban road drainage pipeline trench excavation construction.

[0025] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A supporting device for trench excavation of drainage pipes on urban roads, characterized by: The invention comprises a frame (1), wherein an adjusting mechanism (2) is fixedly installed in the middle of the frame (1), screw rods (3) are rotatably connected to the inner ends of the frame (1), the threads of the two screw rods (3) at the upper and lower ends of the frame (1) are rotated in opposite directions, the outer surface of the screw rod (3) is threadedly connected to a lifting frame (4), the outer end of the lifting frame (4) is fixedly installed with a supporting assembly (5), and the outer ends of the frame (1) are fixedly installed with a connecting supporting mechanism (6); The connecting and supporting mechanism (6) comprises an annular rail (61), the inner side of the annular rail (61) is fixedly mounted with fixing bars (62) arranged in an annular shape at equal intervals, the fixing bars (62) are fixedly connected to the two ends of the outer surface of the frame (1) at equal intervals, the inner side of the annular rail (61) is slidably connected with arc-shaped sliding blocks (63), the outer side of the arc-shaped sliding blocks (63) is fixedly connected with a clamping rail (64), the inner side of the clamping rail (64) is clamped and mounted with a telescopic assembly group (65), and the top of the arc-shaped sliding block (63) is fixedly connected with a positioning clamp (66).

2. The urban road drainage pipe trench excavation support device according to claim 1, characterized in that: The positioning clamp (66) includes a fixed arm (661), which is fixedly mounted on the outer top of the arc-shaped sliding block (63). The fixed arm (661) is arranged in an L-shape as a whole. The top of the fixed arm (661) is threadedly connected to a positioning screw (662), and the end of the positioning screw (662) passes through the fixed arm (661). The top of the annular rail (61) is provided with positioning holes (664) arranged in an annular shape at equal intervals, and the end of the positioning screw (662) is inserted into the interior of the positioning hole (664).

3. The urban road drainage pipe trench excavation support device according to claim 2, characterized in that: The telescopic assembly group (65) includes a sleeve (651), one end of the sleeve (651) is fixedly installed with a block (652), the inner side of the sleeve (651) is slidably connected to a slide rod (653), the outer end of the slide rod (653) is also fixedly installed with a block (652), a block (652) is inserted into the interior of the rail (64), the top of the sleeve (651) is threadedly connected to one end of the slide rod (653) with a limiting screw (654), the end of the limiting screw (654) passes through the sleeve (651), and the top of the slide rod (653) is linearly arranged with equal intervals to open limiting holes (655), and the end of the limiting screw (654) is inserted into the inner side of the limiting hole (655).

4. The urban road drainage pipe trench excavation support device according to claim 3, characterized in that: Both sides of the clamping rail (64) are threadedly connected with a clamping screw (665), and the end of the clamping screw (665) passes through the clamping rail (64). Both ends of the clamping block (652) are provided with a clamping hole (663), and the end of the clamping screw (665) is inserted into the inside of the clamping hole (663).

5. The urban road drainage pipe trench excavation support device according to claim 4, characterized in that: The positioning screw (662), the limiting screw (654) and the clamping screw (665) are all configured as hand-tightening screws, the internal cross-sectional shapes of the sliding rod (653) and the sleeve (651) are both configured as regular hexagons, and the top-view shapes of the clamping block (652) and the clamping rail (64) are both configured as convex shapes.

6. The urban road drainage pipe trench excavation support device according to claim 1, characterized in that: The adjustment mechanism (2) comprises a square frame (21), the square frame (21) being fixedly mounted on the inner middle portion of the frame (1), an adjustment group (22) being provided on the front of the square frame (21), a positioning group (23) being fixedly mounted on the bottom of the adjustment group (22), a driving bevel gear (24) being rotatably connected to the inner front side of the square frame (21), a driven bevel gear (25) being rotatably connected to the inner bottom of the frame (21), the driving bevel gear (24) and the driven bevel gear (25) being meshed with each other, a rotating shaft (26) being fixedly mounted on the inner middle portion of the driven bevel gear (25), the rotating shaft (26) being rotatably connected to the inner side of the square frame (21), and both ends of the rotating shaft (26) being fixedly connected to the inner end of the screw rod (3).

7. The urban road drainage pipe trench excavation support device according to claim 6, characterized in that: The adjustment group (22) comprises a fixed disk (221), the fixed disk (221) being fixedly mounted on the front of the frame (21), the front of the fixed disk (221) being rotatably connected to an adjustment wheel (222), the front of the adjustment wheel (222) being fixedly connected to a connecting disk (223), one side of the connecting disk (223) being rotatably connected to a rotating block (224), the outer side of the rotating block (224) being rotatably connected to a connecting block (225), the bottom of the connecting block (225) being rotatably connected to a crank handle (226), and the rear side of the adjustment wheel (222) being fixedly connected to the front of the active bevel gear (24).

8. The urban road drainage pipe trench excavation support device according to claim 7, characterized in that: The positioning group (23) comprises a guide rail (231) and a limiting hole (232), wherein the guide rail (231) is fixedly connected to the bottom of the fixed disk (221), a limiting spring (233) is fixedly connected inside the guide rail (231), a movable block (234) is fixedly connected to the bottom of the limiting spring (233), and a clamping frame (235) is fixedly connected to the front of the movable block (234), the limiting holes (232) are arranged in a ring shape at equal intervals and are opened on the outer surface of the regulating wheel (222), and the outer end of the clamping frame (235) is inserted into the interior of the limiting hole (232).

9. The urban road drainage pipe trench excavation support device according to claim 1, characterized in that: The supporting assembly (5) includes a fixing seat (51), the fixing seat (51) is fixedly connected to the outer end of the lifting frame (4), the outer side of the fixing seat (51) is provided with mounting grooves (52) arranged in a ring shape at equal intervals, the interior of the mounting groove (52) is provided with a mounting block (53), the bottom of the mounting block (53) is fixedly connected to a magnetic block (54), the fixing seat (51) is made of a magnetic iron material, and the outer side of the mounting block (53) is fixedly connected to a supporting plate (55).

10. A construction and use method of a support device for excavating a trench for drainage pipes on urban roads, using the support device for excavating a trench for drainage pipes on urban roads according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Install the support plate (55). Insert the mounting block (53) into the mounting groove (52) on the outside of the fixing seat (51). Utilize the adsorption effect of the magnetic block (54) and the fixing seat (51) to install the support plate (55) on the outside of the fixing seat (51). This completes the preliminary installation of the support plate (55). Step 2: Unlock the adjustment mechanism (2), rotate the crank handle (226), and make the operating crank handle (226) perpendicular to the adjustment wheel (222) through the connecting block (225) and the rotating block (224); pull the bottom clamping frame (235) to drive the movable block (234) to move downward, so that the clamping frame (235) is separated from the limiting hole (232) on the outer surface of the adjustment wheel (222), thereby releasing the lock of the adjustment wheel (222); Step 3: Adjust the support assembly (5). Pull the crank handle (226) to drive the adjustment wheel (222) to rotate. The active bevel gear (24) on the rear side of the adjustment wheel (222) rotates and meshes with the driven bevel gear (25), driving the rotating shaft (26) to rotate. Since both ends of the rotating shaft (26) are fixedly connected to the screw rod (3), the rotation of the screw rod (3) causes the lifting frame (4) to move linearly along the screw rod (3). Since the threads of the two screw rods (3) rotate in opposite directions, the support plate (55) is driven to move outward until it fits the inner wall of the groove. Step 4: The adjustment mechanism (2) is locked. When the support plate (55) reaches the appropriate position, the clamping frame (235) is released, the limit spring (233) is reset, and the clamping frame (235) is inserted into the limiting hole (232) on the outer surface of the adjustment wheel (222) under the action of the limit spring (233), positioning the adjustment wheel (222) to prevent the screw rod (3) from rotating due to external force; Step 5: Connect the support mechanism (6) to position, adjust the arc-shaped sliding block (63) to slide in the ring rail (61), drive the rail (64) and the telescopic assembly group (65) to rotate around the frame (1), adjust to the appropriate connection direction, rotate the positioning screw (662) at the top of the fixed arm (661) so that its end is inserted into the positioning hole (664) at the top of the ring rail (61), and realize the positioning of the arc-shaped sliding block (63); Step 6: Connect the telescopic assembly group (65), adjust the extended length of the slide rod (653) in the sleeve (651), rotate the limit screw (654) so ​​that its end is inserted into the limit hole (655) at the top of the slide rod (653) to lock the length, insert the clamping blocks (652) at both ends of the telescopic assembly group (65) into the inside of the clamping rails (64) of the two frames (1), rotate the clamping screw (665) so that its end is inserted into the clamping holes (663) at both ends of the clamping block (652), complete the stable connection between the telescopic assembly group (65) and the clamping rail (64), and realize the connection of multiple support points.

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