A tunnel construction pipe jacking end reinforcement device

Abstract

The present invention belongs to the field of pipe jacking end reinforcement, and specifically relates to a pipe jacking end reinforcement device for tunnel construction, which includes a front docking ring and a rear docking ring. Both the front docking ring and the rear docking ring are made of metal materials. A clamping groove is provided on one side of each of the front docking ring and the rear docking ring. A splicing groove is provided on the other side of the front docking ring, and a splicing plate is fixedly installed on the other side of the rear docking ring. During the construction of pipe jacking, several pipe jackings need to be pressed into the soil in batches. With the arrangement of the front docking ring and the rear docking ring, the positions of the clamping grooves of the front docking ring and the rear docking ring are clamped and fixed to the outer edge of the pipe jacking, so that the rear docking ring of the latter pipe jacking is docked with the front docking ring of the previous pipe jacking. During the extrusion process, the splicing plate can be inserted into the splicing groove. With the arrangement of the inner rubber water stop belt, the stable joint effect of the pipe jacking end is effectively improved, and the problems of leakage and fracture at the joint are greatly reduced.

Description

Technical Field

[0001] The invention belongs to the field of top pipe end reinforcement, in particular to a top pipe end reinforcement device for tunnel construction. Background Art

[0002] Pipe jacking construction is a pipeline burial construction technology that requires less excavation. Pipe jacking construction is to use the jacking force generated by jacking equipment in the working pit to overcome the friction between the pipeline and the surrounding soil, push the pipeline into the soil according to the designed slope, and transport the soil away.

[0003] During the construction of jacking pipes, several jacking pipes need to be pressed into the soil in batches. In order to ensure the integrity of the pipe body, fixing devices need to be added to the ends of the segmented jacking pipes to ensure a more sealed and stable connection effect when water is subsequently passed through the pipeline.

[0004] During pipe jacking construction, the ground surface needs to be dug up first, and power supply modules, hydraulic ejection modules and other devices need to be placed inside, resulting in a smaller construction range. Therefore, when connecting pipes of different pipe sections, lifting machinery is often used to lower the segmented pipes, and then the front and rear pipes are connected through continuous adjustments, resulting in a more time-consuming connection process.

[0005] To this end, the present invention provides a tunnel construction jacking pipe end reinforcement device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a tunnel construction jacking pipe end reinforcement device described in the present invention comprises a front butt ring and a rear butt ring, both of which are made of metal materials, one side of the front butt ring and the rear butt ring are provided with a clamping groove, the other side of the front butt ring is provided with a splicing groove, the other side of the rear butt ring is fixedly installed with a splicing plate, the inner sides of the front butt ring and the rear butt ring are both fitted with a rubber water stop strip, when working, when the jacking pipe is under construction, it is necessary to press a plurality of jacking pipes into the soil in batches, cooperate with the setting of the front butt ring and the rear butt ring, the position of the clamping groove of the front butt ring and the rear butt ring is clamped and fixed with the outer edge of the jacking pipe, so that the rear butt ring of the latter jacking pipe is connected with the front butt ring of the former jacking pipe, so that during the extrusion process, the splicing plate can be clamped into the splicing groove, and cooperate with the setting of the inner rubber water stop strip, the stable combination effect of the jacking pipe end is effectively improved, and the problems of leakage and fracture at the connection are greatly reduced.

[0008] Preferably, the splicing groove is semi-circular, the splicing plate is semi-circular, a positioning plate is fixedly installed at the bottom of the other side of the front docking ring, and a clamping groove is formed at the bottom of the other side of the rear docking ring. During operation, since in pipe jacking construction, it is necessary to first dig the ground surface at one place and place power supply modules, hydraulic jacking modules, etc. inside, resulting in a small construction range. Therefore, when docking pipe jacking of different pipe segments, lifting machinery is often used to lower the segmented pipe jacking, and then through continuous adjustment, the front and rear pipe jackings are connected, resulting in a time-consuming docking process. Through the settings of the positioning plate and the clamping groove, a landing point can be found for the lower part of the lowered pipe jacking. First, the positioning plate and the clamping groove are combined, and then through simple fine adjustment, the docking process can be completed, reducing the time required for the positioning process.

[0009] Preferably, a number of holes are formed through the outer side of the front docking ring, a fixing rope is slidably connected inside the holes, and a docking component is arranged on the outer side of the splicing plate. The docking component is used to dock and fix with the fixing rope. During operation, after the front docking ring and the rear docking ring are docked with each other, the fixing rope is passed through the docking component on the splicing plate and through the two holes at the same time to strengthen the connection strength between the front docking ring and the rear docking ring.

[0010] Preferably, a binding band is fixedly installed at one end of the fixing rope inside the front docking ring. The fixing rope includes a wrapping bag, which is woven from fiber materials, and there are gaps between the fibers. A number of metal chains are fixedly installed inside the wrapping bag, and a number of filling bands are arranged inside the wrapping bag. The inside of the filling band and the binding band are both filled with high molecular weight water-absorbing resin particles. During operation, with the structural setting of the fixing rope, the initial volume and cross-section of the fixing rope are small, and it can easily pass through the two holes and the docking component. Then, with the setting of the binding band, the fixing rope can no longer move outwards. After that, as the pipe jacking construction progresses, the pipe jacking will be pressed into the soil under high pressure, causing the number of fixing ropes to be squeezed and move backward and closely adhere to the outer side of the rear docking ring. Since during the pipe jacking construction process, mud and water will continuously be generated, the water will penetrate through the wrapping bag of the fiber material and finally combine with the high molecular weight water-absorbing resin particles, causing the whole fixing rope to expand and block the holes. And with the water flowing through the pipeline in the future, the sealing part will always be in an expanded state. The metal chain can ensure the stiffness and strength of the fixing rope. This kind of setting, compared with the traditional bolt connection, is not only more convenient, but also has a better sealing effect. And during the tightening process, the self-extrusion process during pipe jacking construction is utilized, and no manual tightening and reinforcement are required, thus effectively improving the construction efficiency.

[0011] Preferably, the docking component includes a plurality of engaging blocks, and the plurality of engaging blocks are arranged in a ring on the outer side of the splicing plate. The engaging block includes two vertical rods, and a closing column is provided at one end of one of the vertical rods. A rotating shaft is rotatably connected between the closing column and the vertical rod. During operation, in cooperation with the arrangement of the engaging blocks, the fixing rope can pass through the two holes of the front docking ring before the rear docking ring is docked. Then, when the splicing plate and the engaging blocks are inserted into the splicing groove, the open-shaped engaging blocks will not squeeze the fixing rope. Only when the closing column touches the bottom surface of the splicing groove, under the action of the rotating shaft, the closing column will bend to clamp the fixing rope inside. The self-friction of the rotating shaft is relatively large and will not rotate by itself without external force. Through this setting, the fixing rope can be worn in advance without the need to fix it after docking, further improving the docking efficiency.

[0012] Preferably, the closing column and the vertical rod are inclined. A pressing rod is slidably connected to the end of the other vertical rod. A spring is fixedly connected between the pressing rod and the vertical rod. Friction bumps are fixedly installed on one side of the pressing rod and the outer side of the closing column. A top block is fixedly installed on the outer side of the closing column. During operation, in cooperation with the inclined setting of the closing column, the closing column can rotate more smoothly during extrusion. With the setting of the pressing rod and the spring, when the closing column is pressed down, the pressing rod will be pressed down. When the closing column rotates to be perpendicular to the engaging block, the pressing rod will rebound under the action of the spring to permanently block the closing column, so that the fixing rope can be effectively grasped. This setting can grasp the fixing rope more firmly and ensure its fixing effect. The setting of the top block on the outer side of the closing column allows the closing column to be pushed to a vertical state, and at the same time, there is a movable gap between the pressing rod and the bottom surface of the splicing groove.

[0013] Preferably, two groups of through holes are opened at the inner bottom end of the rear docking ring. Two positioning ropes are fixedly installed at the top end of the alignment plate. The positioning ropes are made of the same material as the fixing rope. During operation, when the engaging groove and the alignment plate are spliced, the two positioning ropes can be passed through the two through holes first, and then by pulling the positioning ropes above, the docking process of the two top pipes can be assisted. At the same time, the positioning ropes can also expand after absorbing liquid, so that after docking is completed, the effect of strengthening the front docking ring and the rear docking ring can be achieved.

[0014] Preferably, a cleaning ball is fixedly installed on the end of the positioning rope, a plurality of protrusions are fixedly installed on the outside of the cleaning ball, the cleaning ball is made of metal material, an expansion ring is fixedly installed on the outside of the positioning rope, and polymer water-absorbing resin particles are arranged on the inside of the expansion ring. When working, the setting of the expansion ring can prompt the operator, and when the expansion ring is pulled to the top of the through hole, it indicates that the docking is in place, and the subsequent water absorption and expansion of the polymer water-absorbing resin on the inside can be used to seal and fix the through hole. The setting of the cleaning ball can drive the cleaning ball to swing when water is passed through the pipeline in the subsequent process, thereby cleaning the attachments on the pipe wall, reducing the corrosion of the catheter joints by the attachments, and further ensuring the stability and sealing of the connection at the joints.

[0015] Preferably, a friction block is fixedly installed on one end of the fixing rope away from the restraining belt. The friction block is flat and the outer side of the friction block is rough. When working, the setting of the friction block can increase the force of the soil driving the fixing rope to move during the jacking pipe construction, further ensuring the stability of the connection between the two jacking pipes.

[0016] Preferably, a pulling ring is fixedly installed on the outer side of the positioning rope, and the pulling ring is made of a flexible waterproof material, and the inner side of the pulling ring is hollow. When working, in conjunction with the setting of the pulling ring, due to the deep through hole, it is more laborious for manual labor to pass the positioning rope through the through hole. At this time, it is only necessary to place the pulling ring under the through hole, and cover the bottom with a waterproof item such as a cover, and then pour water into the through hole. In conjunction with the large buoyancy of the pulling ring, the pulling ring can carry the end of the positioning rope up, and at the same time, the water is not absorbed so quickly by the filling belt, so it will not cause it to swell. Through this setting, the process of passing the positioning rope through the through hole is facilitated.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The present invention discloses a tunnel construction jacking pipe end reinforcement device, which, through the provision of a front docking ring and a rear docking ring, engages and fixes the positions of the front docking ring and the rear docking ring slots with the outer edge of the jacking pipe, so that the rear docking ring of the latter jacking pipe is connected with the front docking ring of the former jacking pipe, so that during the extrusion process, the splicing plate can be inserted into the splicing groove, and combined with the provision of an inner rubber water stop, the stable connection effect of the jacking pipe end is effectively improved, and the problems of leakage and breakage at the connection are greatly reduced.

[0019] 2. The tunnel construction jacking pipe end reinforcement device described in the present invention can find a foothold for the lower part of the suspended jacking pipe by setting the alignment plate and the engaging groove. The alignment plate and the engaging groove are first combined, and then simple and minor adjustments are made to complete the docking process, thereby reducing the time required for the alignment process.

[0020] 3. For the pipe jacking end reinforcement device of the present invention, through the arrangement of the positioning ropes and through holes, two positioning ropes can be passed through the two through holes first, and then by pulling the positioning ropes above, the docking process of the two pipe jackings can be assisted. At the same time, the positioning ropes can also expand after absorbing liquid, so that after the docking is completed, the front docking ring and the rear docking ring can be reinforced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the drawings.

[0022] Figure 1 is a perspective view of the present invention;

[0023] Figure 2 is a connection schematic diagram of the splicing plate and the engaging block of the present invention;

[0024] Figure 3 is a connection sectional view of the alignment plate and the engaging groove in the present invention;

[0025] Figure 4 is a partial structural schematic diagram of the positioning rope and the fixing rope in the present invention;

[0026] In the figure: 1, front docking ring; 2, rear docking ring; 3, card slot; 4, alignment plate; 5, through hole; 6, positioning rope; 7, splicing groove; 8, restraint band; 10, fixing rope; 11, splicing plate; 12, engaging block; 13, rotating shaft; 14, closing column; 15, pressing rod; 16, wrapping bag; 17, metal chain; 18, filling strip; 19, engaging groove; 20, cleaning ball; 21, expansion ring; 22, pulling ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0028] Embodiment 1

[0029] As Figures 1 to 2As shown in the figure, a jacking pipe end reinforcement device according to an embodiment of the present invention includes a front docking ring 1 and a rear docking ring 2. Both the front docking ring 1 and the rear docking ring 2 are made of metal materials. A clamping groove 3 is provided on one side of both the front docking ring 1 and the rear docking ring 2. A splicing groove 7 is provided on the other side of the front docking ring 1. A splicing plate 11 is fixedly installed on the other side of the rear docking ring 2. Rubber waterstops are attached to the inner sides of both the front docking ring 1 and the rear docking ring 2. During operation, when jacking pipes are constructed, several jacking pipes need to be pressed into the soil in batches. With the arrangement of the front docking ring 1 and the rear docking ring 2, the positions of the clamping grooves 3 of the front docking ring 1 and the rear docking ring 2 are clamped and fixed to the outer edges of the jacking pipes, so that the rear docking ring 2 of the latter jacking pipe is docked with the front docking ring 1 of the previous jacking pipe. During the extrusion process, the splicing plate 11 can be inserted into the splicing groove 7. With the arrangement of the inner rubber waterstop, the stable connection effect of the jacking pipe end is effectively improved, and the problems of leakage and fracture at the connection are greatly reduced.

[0030] As Figures 1 to 2 shown, the splicing groove 7 is semi-circularly arranged, the splicing plate 11 is semi-circularly arranged. A positioning plate 4 is fixedly installed at the bottom end of the other side of the front docking ring 1. A clamping groove 19 is provided at the bottom end of the other side of the rear docking ring 2. During operation, since the ground surface at one place needs to be excavated first during jacking pipe construction, and power supply modules, hydraulic jacking modules, etc. are placed inside it, the constructible range is small. Therefore, when docking jacking pipes of different pipe sections, hoisting machinery is often used to lower the segmented jacking pipes, and then through continuous adjustment, the front and rear jacking pipes are connected, resulting in a time-consuming docking process. With the arrangement of the positioning plate 4 and the clamping groove 19, a landing point can be found for the lower part of the lowered jacking pipe. First, the positioning plate 4 and the clamping groove 19 are combined, and then through simple fine adjustment, the docking process can be completed, reducing the time required for the docking process.

[0031] As Figures 1 to 2 shown, a number of holes are provided through the outer side of the front docking ring 1. A fixing rope 10 is slidably connected to the inside of the holes. A docking component is provided on the outer side of the splicing plate 11. The docking component is used to dock and fix with the fixing rope 10. During operation, after the front docking ring 1 and the rear docking ring 2 are docked with each other, the fixing rope 10 passes through the docking component on the splicing plate 11 and also passes through the two holes to strengthen the connection strength between the front docking ring 1 and the rear docking ring 2.

[0032] As Figures 1 to 2As shown, a restraint strap 8 is fixedly installed at one end of the fixing rope 10 inside the front docking ring 1. The fixing rope 10 includes a wrapping bag 16 which is woven from fiber materials and has gaps between the fibers. A number of metal chains 17 are fixedly installed inside the wrapping bag 16. A number of filling straps 18 are arranged inside the wrapping bag 16. The inner sides of the filling straps 18 and the restraint strap 8 are filled with superabsorbent polymer resin particles. During operation, with the structural arrangement of the fixing rope 10, the initial volume and cross-section of the fixing rope 10 are small, and it can easily pass through the two holes and the docking assembly. Then, with the arrangement of the restraint strap 8, the fixing rope 10 cannot move outwards anymore. After that, with the progress of the pipe jacking construction, the pipe jack will be pressed into the soil under high pressure, causing the number of fixing ropes 10 to be squeezed and move backward and closely adhere to the outer side of the rear docking ring 2. Since mud water will continuously be generated during the pipe jacking construction, the water will penetrate through the wrapping bag 16 made of fiber materials and finally combine with the superabsorbent polymer resin particles, causing the whole fixing rope 10 to expand and block the holes. And with the water flowing through the pipeline in the future, the sealing part will always be in an expanded state. The metal chains 17 can ensure the stiffness and strength of the fixing rope 10. This kind of arrangement is not only more convenient compared with the traditional bolt connection, but also has a better sealing effect. During the tightening process, the self-extrusion process during the pipe jacking construction is utilized, and there is no need for manual tightening and reinforcement, thus effectively improving the construction efficiency.

[0033] As Figure 2 shown, the docking assembly includes a number of engaging blocks 12 which are arranged in a circular pattern on the outer side of the splicing plate 11. The engaging block 12 includes two vertical rods, and a closing column 14 is arranged at one end of one of the vertical rods. A rotating shaft 13 is rotatably connected between the closing column 14 and the vertical rod. During operation, with the arrangement of the engaging blocks 12, the fixing rope 10 can pass through the two holes of the front docking ring 1 before the rear docking ring 2 is docked. Then, when the splicing plate 11 and the engaging blocks 12 are inserted into the splicing groove 7, the open-shaped engaging blocks 12 will not squeeze the fixing rope 10. Only when the closing column 14 touches the bottom surface of the splicing groove 7, under the action of the rotating shaft 13, the closing column 14 will bend to clamp the fixing rope 10 inside. The self-friction of the rotating shaft 13 is relatively large and will not rotate by itself without external force. Through this kind of arrangement, the fixing rope 10 can be worn in advance, and there is no need to carry out the fixing work after docking, further improving the docking efficiency.

[0034] As Figure 2As shown, the closing column 14 is inclined with the vertical rod, and the end of the other vertical rod is slidably connected with a pressing rod 15, and a spring is fixedly connected between the pressing rod 15 and the vertical rod. A friction convex block is fixedly installed on one side of the pressing rod 15 and the outer side of the closing column 14, and a top block is fixedly installed on the outer side of the closing column 14. When working, the closing column 14 is inclined, so that the closing column 14 can rotate more smoothly when squeezing, and the setting of the pressing rod 15 and the spring, the closing column When 14 is pressed down, the pressing rod 15 will be pressed down. When the closing column 14 rotates to be vertical to the engaging block 12, the pressing rod 15 will rebound under the action of the spring to permanently block the closing column 14, so that the fixing rope 10 can be effectively grasped. This arrangement can grasp the fixing rope 10 more firmly and ensure its fixing effect. The arrangement of the top block on the outer side of the closing column 14 allows the closing column 14 to be pushed to a vertical state, and at the same time, a movable gap is present between the pressing rod 15 and the bottom surface of the splicing groove 7.

[0035] like Figures 1 to 3 As shown, two groups of through holes 5 are opened at the inner bottom end of the rear docking ring 2, and two groups of positioning ropes 6 are fixedly installed on the top of the alignment plate 4. The positioning ropes 6 are made of the same material as the fixing ropes 10. During operation, when the engaging groove 19 and the alignment plate 4 are spliced, the two positioning ropes 6 can be passed through the two through holes 5 first, and then the positioning ropes 6 only need to be pulled upward to assist the docking process of the two jacking pipes. At the same time, the positioning ropes 6 can also expand after absorbing liquid, so that after the docking is completed, it can play the effect of reinforcing the front docking ring 1 and the rear docking ring 2.

[0036] like Figure 3 As shown, a cleaning ball 20 is fixedly installed at the end of the positioning rope 6, and a plurality of protrusions are fixedly installed on the outside of the cleaning ball 20. The cleaning ball 20 is made of metal material. An expansion ring 21 is fixedly installed on the outside of the positioning rope 6. The inside of the expansion ring 21 is provided with polymer water-absorbing resin particles. When working, the setting of the expansion ring 21 can prompt the operator. When the expansion ring 21 is pulled to the top of the through hole 5, it indicates that the docking is in place. At the same time, the subsequent water absorption and expansion of the polymer water-absorbing resin on the inside can be used to seal and fix the through hole 5. The setting of the cleaning ball 20 can drive the cleaning ball 20 to swing when water is passed through the pipeline in the subsequent process, so as to clean the attachments on the pipe wall, reduce the corrosion of the attachments at the joints of the conduits, and further ensure the stability and sealing of the connection at the joints.

[0037] Embodiment 2

[0038] like Figure 4As shown, compared with the first comparative example, another implementation mode of the present invention is as follows: a friction block is fixedly installed at one end of the fixing rope 10 away from the restraint belt 8. The friction block is arranged in a flat shape, and the outer side of the friction block is arranged in a rough shape. During operation, the setting of the friction block can improve the force of the soil body driving the fixing rope 10 to move during the pipe jacking construction process, further ensuring the connection stability between the two pipe jacks.

[0039] A pulling ring 22 is fixedly installed on the outer side of the positioning rope 6. The pulling ring 22 is made of a flexible water-proof material, and the inner side of the pulling ring 22 is hollow. During operation, in cooperation with the setting of the pulling ring 22, since the through hole 5 is relatively deep, it is rather laborious for workers to pass the positioning rope 6 through the through hole 5. At this time, only need to place the pulling ring 22 below the through hole 5 and cover the lower part with a water-proof item such as a cover, then pour water into the through hole 5. With the large buoyancy of the pulling ring 22, it can drive the end of the positioning rope 6 to rise by itself, and at the same time, the water is not absorbed by the filling belt 18 so quickly, so it will not expand. Through this setting, it is convenient for the positioning rope 6 to pass through the through hole 5.

[0040] During the construction of pipe jacking, several pipe jacks need to be pressed into the soil in batches. With the setting of the front docking ring 1 and the rear docking ring 2, the positions of the clamping grooves 3 of the front docking ring 1 and the rear docking ring 2 are clamped and fixed with the outer edge of the pipe jack, so that the rear docking ring 2 of the latter pipe jack is docked with the front docking ring 1 of the previous pipe jack. During the extrusion process, the splicing plate 11 can be inserted into the splicing groove 7. Coupled with the setting of the inner rubber water stop, the stable joint effect of the pipe jack end is effectively improved, and the problems of leakage and fracture at the joint are greatly reduced. During operation, since it is necessary to first dig open the surface at one place and place power supply modules, hydraulic jacking modules, etc. inside during the pipe jacking construction, the constructible range is small. Therefore, when docking pipe jacks of different pipe sections, a hoisting machine is often used to lower the segmented pipe jacks, and then through continuous adjustment, the front and rear pipe jacks are connected, resulting in a time-consuming docking process. Through the setting of the alignment plate 4 and the clamping groove 19, a foothold can be found for the lowered pipe jack. First, the alignment plate 4 and the clamping groove 19 are combined, and then through simple fine adjustment, the docking process can be completed, reducing the time required for the alignment process. During operation, after the front docking ring 1 and the rear docking ring 2 are docked with each other, the fixing rope 10 passes through the docking components on the splicing plate 11 and simultaneously passes through two holes to reinforce the connection strength between the front docking ring 1 and the rear docking ring 2. During operation, with the structural setting of the fixing rope 10, the initial volume and cross-section of the fixing rope 10 are small, and it can easily pass through two holes and the docking components. Then, with the setting of the binding band 8, the fixing rope 10 cannot move outwards anymore. After that, as the pipe jacking construction progresses, the pipe jack will be pressed into the soil under high pressure, causing several fixing ropes 10 to be squeezed and move backward and closely adhere to the outer side of the rear docking ring 2. Since mud and water will be continuously generated during the pipe jacking construction process, the water will penetrate through the fiber material wrapping bag 16 and finally combine with the superabsorbent resin particles, causing the entire fixing rope 10 to expand and block the holes. And with the water flowing through the pipeline in the future, the sealing part will also be in an expanded state all the time. The metal chain 17 can ensure the stiffness and strength of the fixing rope 10. This setting is not only more convenient compared with the traditional bolt connection, but also has a better sealing effect. During the tightening process, the self-extrusion process during the pipe jacking construction is utilized, and no manual tightening and reinforcement are required, thus effectively improving the construction efficiency.During operation, with the setting of the snap block 12, the fixing rope 10 can pass through the two holes of the front docking ring 1 before the rear docking ring 2 is docked. Then, as the splicing plate 11 and the snap block 12 are inserted into the splicing groove 7, the open snap block 12 will not squeeze the fixing rope 10. Only when the closing column 14 touches the bottom surface of the splicing groove 7, the closing column 14 will bend under the action of the rotating shaft 13 to clamp the fixing rope 10 inside. The friction force of the rotating shaft 13 itself is relatively large, and it will not rotate by itself without the action of external force. Through this setting, The fixing rope 10 can be put on in advance, and there is no need to fix the work after docking, which further improves the docking efficiency. When working, the inclined setting of the closing column 14 makes it possible for the closing column 14 to rotate more smoothly during squeezing, and the setting of the pressing rod 15 and the spring, when the closing column 14 is pressed down, the pressing rod 15 will be pressed down. When the closing column 14 rotates to the point where the engaging block 12 is vertical, the pressing rod 15 will rebound under the action of the spring to permanently block the closing column 14, so that the fixing rope 10 can be effectively grasped. This setting can be more The fixing rope 10 is firmly grasped to ensure its fixing effect, and the setting of the top block outside the closing column 14 allows the closing column 14 to be pushed to a vertical state, and at the same time, a movable gap exists between the lower pressure rod 15 and the bottom surface of the splicing groove 7; when working, when the engaging groove 19 and the alignment plate 4 are spliced, the two positioning ropes 6 can be passed through the two through holes 5 first, and then the positioning rope 6 can be pulled upward to assist the docking process of the two jacking pipes. At the same time, the positioning rope 6 can also expand after absorbing liquid, so that after the docking is completed, it can play a role in reinforcing the front The effect of the docking ring 1 and the rear docking ring 2; when working, the expansion ring 21 can be used to remind the operator that when the expansion ring 21 is pulled to the top of the through hole 5, it indicates that the docking is in place. At the same time, the high molecular water-absorbing resin on the inner side can be used to seal and fix the through hole 5 in the subsequent cooperation. The cleaning ball 20 can drive the cleaning ball 20 to swing when the pipeline is passed with water, so as to clean the attachments on the pipe wall, reduce the corrosion of the attachments at the joint of the conduit, and further ensure the connection stability and sealing of the joint. ;

[0041] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0042] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 construed as limiting the protection scope of the present invention.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe jacking end reinforcement device for tunnel construction, characterized in that: It includes a front docking ring (1) and a rear docking ring (2). Both the front docking ring (1) and the rear docking ring (2) are made of metal materials. A clamping groove (3) is provided on one side of each of the front docking ring (1) and the rear docking ring (2). A splicing groove (7) is provided on the other side of the front docking ring (1). A splicing plate (11) is fixedly installed on the other side of the rear docking ring (2). Rubber waterstops are attached to the inner sides of both the front docking ring (1) and the rear docking ring (2). The splicing groove (7) is semi-circularly arranged, and the splicing plate (11) is semi-circularly arranged. A positioning plate (4) is fixedly installed at the bottom end of the other side of the front docking ring (1), and a clamping groove (19) is provided at the bottom end of the other side of the rear docking ring (2). A number of holes are provided through the outer side of the front docking ring (1), and a fixing rope (10) is slidably connected to the inside of the holes. A docking component is provided on the outer side of the splicing plate (11), and the docking component is used for docking and fixing with the fixing rope (10). A binding strap (8) is fixedly installed at one end of the fixing rope (10) located inside the front docking ring (1). The fixing rope (10) includes a wrapping bag (16). The wrapping bag (16) is woven from fiber materials, and there are gaps between the fibers. A number of metal chains (17) are fixedly installed inside the wrapping bag (16). A number of filling straps (18) are provided inside the wrapping bag (16). The inside of both the filling strap (18) and the binding strap (8) is filled with high molecular water-absorbing resin particles.

2. The pipe jacking end reinforcement device for tunnel construction according to claim 1, characterized in that: The docking component includes a number of clamping blocks (12). The number of clamping blocks (12) are arranged in a circular pattern on the outer side of the splicing plate (11). Each clamping block (12) includes two vertical rods. One end of one vertical rod is provided with a closing column (14). A rotating shaft (13) is rotatably connected between the closing column (14) and the vertical rod.

3. The pipe jacking end reinforcement device for tunnel construction according to claim 2, characterized in that: The closing column (14) and the vertical rod are inclined. The other vertical rod is slidably connected to a pressing rod (15). A spring is fixedly connected between the pressing rod (15) and the vertical rod. Friction bumps are fixedly installed on one side of the pressing rod (15) and the outer side of the closing column (14). A top block is fixedly installed on the outer side of the closing column (14).

4. The pipe jacking end reinforcement device for tunnel construction according to claim 3, characterized in that: Two groups of through holes (5) are provided at the bottom end inside the rear docking ring (2). Two groups of positioning ropes (6) are fixedly installed at the top end of the positioning plate (4). The positioning ropes (6) are made of the same material as the fixing rope (10).

5. The pipe jacking end reinforcement device for tunnel construction according to claim 4, characterized in that: A cleaning ball (20) is fixedly installed at the end of the positioning rope (6). A number of bumps are fixedly installed on the outer side of the cleaning ball (20). The cleaning ball (20) is made of metal material. An expansion ring (21) is fixedly installed on the outer side of the positioning rope (6). The inside of the expansion ring (21) is provided with high molecular water-absorbing resin particles.

6. The pipe jacking end reinforcement device for tunnel construction according to claim 5, characterized in that: A friction block is fixedly installed at the end of the fixing rope (10) away from the binding strap (8). The friction block is flat-shaped, and the outer side of the friction block is rough.

7. The pipe jacking end reinforcement device for tunnel construction according to claim 6, characterized in that: A pulling ring (22) is fixedly installed on the outer side of the positioning rope (6). The pulling ring (22) is made of a flexible water-proof material, and the inner side of the pulling ring (22) is hollow.

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