CN117418512A - Aqueduct body expansion joint water stop device - Google Patents

Abstract

The application provides an aqueduct body expansion joint sealing device relates to sealing device's technical field, include: the groove body is provided with a plurality of groove bodies, and expansion joints are formed between the end faces of the adjacent groove bodies; the inner water stop is respectively connected with the two adjacent groove bodies and is blocked at the expansion joint close to the inner side wall of the groove body; the outer water stop blocks are provided with a plurality of outer water stop blocks, the plurality of outer water stop blocks are detachably connected with two adjacent groove bodies respectively, and the outer water stop blocks are blocked at expansion joints close to the outer side walls of the groove bodies; the isolation blocks are provided with a plurality of isolation blocks, the plurality of isolation blocks are filled and blocked in the expansion joint, and the isolation blocks are positioned between the inner water stop and the outer water stop. In the whole repairing process, the isolation blocks and the outer water stop blocks are replaced outside the groove body, and the inner water stop strips are not treated, so that water in the aqueduct is not required to be drained, and the normal water delivery of the aqueduct is not influenced.

Description

Aqueduct body expansion joint water stop device

Technical Field

The application relates to the technical field of water stopping devices, in particular to a water stopping device for an expansion joint of a aqueduct body.

Background

In the construction of irrigation areas of farmland hydraulic engineering, when a water delivery channel needs to span low-lying land features such as ditch cutting, river and the like, a commonly adopted crossing building is called an aqueduct in order to reduce water head loss and smoothly connect with water flow at the upstream of the channel. When the aqueduct spans river gully, the length of the aqueduct body is generally 10-20 m, and the aqueduct adopts a multi-span design scheme because the span length is longer, expansion joints are formed between the aqueduct bodies of adjacent spans, and in order to reduce water leakage at the expansion joints, water stop devices are required to be installed at the expansion joints, and the conventional water stop devices are rubber pressure plate type water stop devices.

Because the operation condition of large-scale long distance water transmission and transfer engineering is complicated, especially in the cold area in north of China, after long-term operation for many years, the ageing damage phenomena such as rubber pressure plate fracture, bolt corrosion, looseness, drop, U type sealing rubber ageing fracture, expansion joint infiltration and the like generally exist in some aqueduct expansion joint rubber pressure plate sealing devices, and the sealing device needs to be repaired.

The utility model patent with the publication number of CN219586672U discloses an aging repair device for a rubber pressing plate type water stopping material of an aqueduct expansion joint, which comprises an isolation cushion layer and a repair water stopping layer, wherein the isolation cushion layer is arranged on the surface of a U-shaped water stopping belt, a strip-shaped opening is formed in a rubber pressing plate on the surface of the U-shaped water stopping belt, the strip-shaped opening is positioned at the aqueduct expansion joint, the isolation cushion layer is arranged at the bottom of the strip-shaped opening and is adhered to the surface of the opening of the U-shaped water stopping belt, and the repair water stopping layer is paved on the surface of the rubber pressing plate. When the aging repairing device is used for repairing the water stop, the repairing purpose can be achieved by adding the isolating cushion layer, repairing the water stop layer and other structures on the basis of keeping the original U-shaped water stop inside the expansion joint of the aqueduct. However, because the repairing water-stop layer is arranged on the inner side wall of the aqueduct, the water in the aqueduct must be drained during repairing, so that the normal water delivery of the aqueduct is greatly influenced, and huge manpower and material resources are required to drain the water in the aqueduct.

Disclosure of Invention

The purpose of this application is to provide an aqueduct body expansion joint sealing device for solve the sealing material ageing prosthetic devices among the relevant technique when the restoration, must drain the water in the aqueduct, the normal water delivery of aqueduct that leads to causes the influence, and need consume huge manpower and materials's problem.

The application provides a aqueduct body expansion joint sealing device adopts following technical scheme:

an aqueduct body expansion joint sealing device, includes:

the device comprises a plurality of groove bodies, wherein expansion joints are formed between the end faces of the adjacent groove bodies, the groove bodies are provided with supporting parts, and the supporting parts are arranged at intervals with the end faces of the groove bodies;

the inner water stop is respectively connected with two adjacent groove bodies, and the inner water stop is blocked at an expansion joint close to the inner side wall of the groove body;

the outer water stop blocks are provided with a plurality of outer water stop blocks, the outer water stop blocks are detachably connected with two adjacent groove bodies respectively, and the outer water stop blocks are blocked at expansion joints close to the outer side walls of the groove bodies;

the isolation blocks are arranged and are filled and plugged in the expansion joints, and the isolation blocks are located between the inner water stop and the outer water stop.

Through adopting above-mentioned technical scheme, when the expansion joint department of aqueduct body takes place to leak and need repair, demolish the outer sealing block of department of leaking from the cell body earlier, change the isolation piece of department of leaking, carry out temporary shutoff to the expansion joint of department of leaking through new isolation piece, install new outer sealing block to the cell body again to the realization is to the repair of department of leaking. In the whole repairing process, the isolation blocks and the outer water stop blocks are replaced outside the groove body, and the inner water stop strips are not treated, so that water in the aqueduct is not required to be drained, and the normal water delivery of the aqueduct is not influenced.

Optionally, the inner water stop comprises a bending part and fixing parts which are positioned on two sides of the bending part and fixedly connected with the bending part, the fixing parts are respectively fixedly connected with the adjacent groove bodies, the bending parts are positioned in the expansion joints, one side surface of the side pressing plate is abutted to the inner side wall of the bending part, and the extruding and pushing mechanism is arranged on the groove bodies and acts on the other side surface of the side pressing plate.

Through adopting above-mentioned technical scheme, act on the side board through pushing away the mechanism to through the side board with the kink and the expansion joint lateral wall of interior waterstop closely laminate, thereby effectively improve antiseep effect.

Optionally, the extruding and pushing mechanism comprises a support, a bolt and an extruding and pushing block, wherein the support is connected with the groove body, the extruding and pushing block is slidably arranged on the support, a wedge-shaped surface is arranged on the extruding and pushing block, the bolt is in threaded connection with the support, and the end part of the bolt can be in butt joint with the wedge-shaped surface and push the extruding and pushing block to be in butt joint with the side pressure plate.

Through adopting above-mentioned technical scheme, can drive the bolt through screwing the bolt and can move downwards to through the tip of bolt and the wedge face butt of extrusion piece, and promote the extrusion piece and remove towards the side pressure board, with side pressure board butt, the lateral wall of rethread side pressure board with kink and the lateral wall inseparable pressfitting of expansion joint.

Optionally, the device further comprises a pressing belt, a first groove is formed in the end portion, close to the inner side wall, of the groove body, the support is inserted into the bending portion, a connecting plate is arranged on the support, the fixing portion, the pressing belt and the connecting plate are sequentially stacked on the bottom wall of the first groove, a first stud is fixedly arranged on the groove body, the first stud penetrates through the fixing portion, the pressing belt and the connecting plate, a first nut is connected to the first stud in a threaded mode, and the first nut is in butt joint with the connecting plate.

Through adopting above-mentioned technical scheme, wear to locate fixed part, pressure area and connecting plate through first double-screw bolt to the spiro union has first nut on first double-screw bolt, thereby when fixed to the support, can press the pressure area to the crimping, thereby can retrench fixed connection structure.

Optionally, the upper surface of the inner water stop and the side wall of the first groove adjacent to the groove body enclose to form a filling area, and the filling area is filled with the emulsion mortar.

By adopting the technical scheme, the inner water stop belt, the extruding mechanism and the like are protected to a certain extent by the emulsion mortar, so that the erosion of water in the aqueduct to the inner water stop belt is reduced.

Optionally, in the expansion joint that is close to cell body lateral wall one side was located to the tight fit card of spacer, adjacent the mutual tight fit butt of spacer, the tip that the cell body is close to the lateral wall is equipped with the second recess, outer sealing up piece can dismantle and locate on the roof of second recess, and with spacer tight fit butt.

Through adopting above-mentioned technical scheme, in the expansion joint that is close to cell body lateral wall one side was located to the spacer tight fit card to carry out tight fit butt through outer stagnant water piece and spacer, carry out spacingly to the spacer through outer stagnant water piece, thereby need not to use the fastener to fasten the installation to the spacer, and then can reduce installation cost.

Optionally, the both ends of isolation piece are equipped with shutoff boss respectively, adjacent the shutoff boss of isolation piece is tight fit butt each other, the up end of shutoff boss with the roof tight fit butt of second recess.

Through adopting above-mentioned technical scheme, in carrying out the seepage repair process, pull down original spacer from the expansion joint in to after the new spacer of renewing, because spacer and expansion joint tight fit joint, the shutoff boss of adjacent spacer is tight fit butt each other simultaneously, and the up end of shutoff boss and the roof tight fit butt of second recess, consequently can play better interim shutoff effect to the expansion joint of seepage department.

Optionally, the sealing device further comprises a pressing sleeve, wedge-shaped bosses are respectively arranged at two ends of the outer water stop block, the side faces of the wedge-shaped bosses are in butt joint with the side faces of the plugging bosses, the plugging bosses on the adjacent isolating blocks are located between the wedge-shaped bosses of the outer water stop block, the pressing sleeve is detachably connected with the groove body and sleeved on the outer sides of the wedge-shaped bosses of the outer water stop block, and the side walls of the pressing sleeve are inclined in a mode of being attached to inclined faces of the wedge-shaped bosses.

Through adopting above-mentioned technical scheme, be the lateral wall crimping of slope form on the inclined plane of wedge boss through compressing tightly the cover to can closely the centre gripping laminating of the shutoff boss of adjacent spacer block and the wedge boss of adjacent outer stagnant water piece, thereby improve prevention of seepage water effect.

Optionally, the second double-screw bolt and third double-screw bolt have set firmly on the cell body, the second double-screw bolt wears to locate outer sealing up piece, the spiro union has the second nut on the second double-screw bolt, the second nut with outer sealing up piece butt, the third double-screw bolt wears to locate outer sealing up piece with compress tightly the cover, the spiro union has the third nut on the third double-screw bolt, the third nut with compress tightly the cover butt, be equipped with the second deformation hole on the outer sealing up piece.

Through adopting above-mentioned technical scheme, wear to locate outer sealing up piece through the second double-screw bolt to spiro union second nut on the second double-screw bolt, thereby can be with outer sealing up piece and cell body detachable connection, and the connection structure convenient to detach installation of second double-screw bolt and second nut.

Optionally, the isolation block is spaced from the bending part of the inner water stop, and an expansion joint between the isolation block and the bending part is filled with asphalt hemp threads.

By adopting the technical scheme, asphalt hemp threads are filled in the expansion joint between the isolation block and the bending part, so that the sealing and seepage preventing effects can be improved.

In summary, the present application includes at least one of the following beneficial technical effects: when the expansion joint of the aqueduct body is leaked and needs to be repaired, water flows out from a gap between the outer water stop block and the aqueduct body or a gap between adjacent outer water stop blocks, when the aqueduct body is repaired, the outer water stop block at the water leakage position is firstly removed from the aqueduct body, then the isolation block at the water leakage position is removed, then a new isolation block is mounted at the expansion joint, the expansion joint at the water leakage position is temporarily plugged, the water leakage amount is controlled at a lower level so as to facilitate construction replacement of the outer water stop block, the aqueduct body is correspondingly trimmed so as to be well matched with the new outer water stop block, and the new outer water stop block is mounted on the aqueduct body, so that the repair of the water leakage position can be completed. Because the replacement of the isolation block and the outer water stop block is carried out outside the groove body in the whole repairing process, the inner water stop belt is not treated, so that water in the aqueduct is not required to be drained, the normal water delivery of the aqueduct is not influenced, the cost of manpower and material resources is effectively saved, and the repairing efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of an expansion joint water stop device of an aqueduct body in an embodiment of the present application after omitting acrylic mortar;

FIG. 2 is a cross-sectional view of the expansion joint water stop device of the aqueduct body in the embodiment of the application after omitting the acrylic mortar;

FIG. 3 is a partially enlarged schematic illustration of portion B of FIG. 2;

FIG. 4 is a schematic view of the structure of FIG. 1 with one of the slots omitted;

FIG. 5 is an enlarged schematic view of a portion A of FIG. 4;

FIG. 6 is a schematic view of a spacer block in an embodiment of the present application;

FIG. 7 is a schematic structural diagram of an external water stop in an embodiment of the present application;

fig. 8 is a schematic structural view of a supporting portion of a tank body according to an embodiment of the present application.

Reference numerals illustrate:

10. a tank body; 11. an expansion joint; 12. a first groove; 13. a first stud; 14. a first nut; 15. a second groove; 16. a second stud; 17. a second nut; 18. a third stud; 19. a third nut; 110. a support part;

20. an inner water stop; 21. a bending part; 22. a fixing part;

30. an outer water stop block; 31. wedge-shaped boss; 32. a second deformation hole;

40. a spacer block; 41. plugging the boss; 42. chamfering;

50. a push mechanism; 51. a support; 511. a chute; 512. a screw hole; 513. a connecting plate; 5131. a first deformation hole; 52. a bolt; 53. extruding and pushing the block;

60. a side pressure plate; 70. pressing the belt; 80. filling the region; 90. a compacting sleeve; 100. asphalt hemp threads; 120. and (3) pier.

Detailed Description

The present application is described in further detail below with reference to fig. 1-8.

The embodiment of the application discloses an aqueduct body expansion joint water stop device.

Referring to fig. 1, 2 and 3, an expansion joint water stop device of a aqueduct body comprises a duct body 10, an inner water stop 20, an outer water stop 30 and a separation block 40, wherein a plurality of duct bodies 10 are arranged, and expansion joints 11 are formed between the end faces of adjacent duct bodies 10; the inner water stop 20 is respectively connected with the two adjacent groove bodies 10, and the inner water stop 20 is blocked at the expansion joint 11 near the inner side wall of the groove body 10. The outer water stop blocks 30 are provided with a plurality of, the plurality of outer water stop blocks 30 are detachably connected with the two adjacent groove bodies 10 respectively, and the outer water stop blocks 30 are blocked at the expansion joint 11 close to the outer side wall of the groove body 10. The isolation blocks 40 are provided with a plurality of isolation blocks 40, the plurality of isolation blocks 40 are filled and plugged in the expansion joint 11, and the isolation blocks 40 are positioned between the inner water stop 20 and the outer water stop 30.

When the expansion joint 11 of the aqueduct body 10 is leaked and needs to be repaired, water flows out from a gap between the outer water stop block 30 and the aqueduct body 10 or a gap between adjacent outer water stop blocks 30, when repairing is performed, the outer water stop block 30 at the water leakage position is firstly removed from the aqueduct body 10, then the isolation block 40 at the water leakage position is removed, a new isolation block 40 is mounted at the expansion joint 11, the expansion joint 11 at the water leakage position is temporarily plugged, the water leakage amount is controlled at a lower level so as to facilitate construction replacement of the outer water stop block 30, the aqueduct body 10 is correspondingly trimmed so as to be well matched with the new outer water stop block 30, and the new outer water stop block 30 is mounted on the aqueduct body 10, so that the repair of the water leakage position can be completed. Because the replacement of the isolation block 40 and the outer water stop block 30 is carried out outside the groove body 10 in the whole repair process and the inner water stop band 20 is not treated, the water in the aqueduct is not required to be drained, the normal water delivery of the aqueduct is not influenced, the cost of manpower and material resources is effectively saved, and the repair efficiency is improved.

In an alternative embodiment, the specific structure of the inner water stop 20 and the specific connection relationship with the tub 10 are as follows:

referring to fig. 3, the inner water stop 20 includes a bending portion 21 and fixing portions 22 located at two sides of the bending portion 21 and fixedly connected with the bending portion 21, in this embodiment, the inner water stop 20 may be made of rubber, the cross section of the bending portion 21 is U-shaped, the fixing portions 22 are strip-shaped plates, the bending portion 21 is located in the expansion joint 11, and the outer side wall of the bending portion 21 is tightly attached to the side wall of the expansion joint 11, so as to achieve a better sealing effect.

In this embodiment, the extruding mechanism 50 and the side pressing plate 60 may be disposed, and one side surface of the side pressing plate 60 is abutted against the inner side wall of the bending portion 21, and the extruding mechanism 50 is disposed on the tank body 10, so that the extruding mechanism 50 acts on the other side surface of the side pressing plate 60, thereby achieving close fitting between the outer side wall of the bending portion 21 and the side wall of the expansion joint 11. More specifically, the extruding mechanism 50 includes a support 51, a bolt 52 and an extruding block 53, the support 51 is connected with the tank body 10, the extruding block 53 is slidably disposed on the support 51, preferably, a chute 511 is disposed on the support 51, and the extruding block 53 is slidably disposed in the chute 511. The extruding and pushing block 53 is provided with a wedge surface, the support 51 is provided with a screw hole 512 communicated with the chute 511, the bolt 52 is in threaded connection with the support 51 through the screw hole 512, the end part of the bolt 52 is in a conical shape, when the bolt 52 is screwed, the bolt 52 can move downwards, thereby being abutted with the wedge surface through the conical end part of the bolt 52, pushing the extruding and pushing block 53 to move towards the side pressing plate 60, being abutted with the side pressing plate 60, and tightly pressing the outer side wall of the bending part 21 and the side wall of the expansion joint 11 through the side pressing plate 60.

The fixed part 22 is fixedly connected with the adjacent groove body 10 through the pressing belt 70 respectively, more specifically, the end part, close to the inner side wall, of the groove body 10 is provided with the first groove 12, the support 51 is inserted into the bending part 21, the support 51 is provided with the connecting plate 513, the fixed part 22, the pressing belt 70 and the connecting plate 513 are sequentially stacked on the bottom wall of the first groove 12, the groove body 10 is fixedly provided with the first stud 13, the first stud 13 penetrates through the fixed part 22, the pressing belt 70 and the connecting plate 513, the first stud 13 is in threaded connection with the first nut 14, the first nut 14 is in butt joint with the connecting plate 513, and is in pressure connection with the pressing belt 70 through the connecting plate 513, so that the fixed part 22 and the groove body 10 are tightly pressed through the pressing belt 70.

In the present embodiment, the number of the push blocks 53 in each push mechanism 50 is two, the two push blocks 53 respectively correspond to the two side pressure plates 60, and meanwhile, the connecting plates 513 are respectively connected with the two adjacent tank bodies 10. Because the expansion joint 11 of the aqueduct is affected by external factors and can be deformed in a certain extent, when the structure that the connecting plate 513 is simultaneously connected with two adjacent tank bodies 10 is adopted by the extruding mechanism 50, the first deformation holes 5131 can be formed in the connecting plate 513, so that the connecting plate 513 can generate certain tensile deformation to adapt to the expansion deformation of the expansion joint 11. It should be noted that, the push mechanism 50 adopts a structure in which the connection plate 513 is simultaneously connected to two adjacent tank bodies 10, and is only suitable for a aqueduct in which the expansion joint 11 has a small expansion deformation, and if the expansion joint 11 has a large expansion deformation, only one push block 53 may be provided in each push mechanism 50, and the single side pressure plate 60 is crimped by one push block 53, and at the same time, the connection plate 513 is connected to only the tank body 10 on that side, and the connection plate 513 adopts a rigid structure.

The upper surface of the inner water stop 20 and the side wall of the first groove 12 of the adjacent groove body 10 are enclosed to form a filling area 80, the filling area 80 is filled with acrylic mortar, and the parts of the inner water stop 20, the extruding and pushing mechanism 50 and the like are protected to a certain extent by the acrylic mortar so as to reduce the erosion of water in the aqueduct to the parts.

Referring to fig. 3, 4 and 5, specific structures of the spacer 40 and the outer water stop 30, and specific connection relations of the spacer 40 and the outer water stop 30 with the tank body 10 are as follows:

the isolation blocks 40 are clamped in the expansion joint 11 close to one side of the outer side wall of the tank body 10 in a tight fit mode, adjacent isolation blocks 40 are abutted in a tight fit mode, a second groove 15 is formed in the end portion, close to the outer side wall, of the tank body 10, and the outer water stop block 30 is detachably arranged on the top wall of the second groove 15 and abutted in a tight fit mode with the isolation blocks 40. To facilitate the insertion of the spacer 40 into the expansion joint 11, a chamfer 42 may be provided at the edge of the spacer 40. The isolation block 40 and the bending part 21 of the inner water stop 20 are arranged at intervals, and the expansion joint 11 between the isolation block 40 and the bending part 21 is filled with asphalt hemp threads 100 so as to improve the sealing and seepage preventing effects.

Referring to fig. 3, 5 and 6, the two ends of the isolation block 40 are respectively provided with a plugging boss 41, the plugging bosses 41 of the adjacent isolation blocks 40 are in close fit and abutting connection with each other, and the upper end surfaces of the plugging bosses 41 are in close fit and abutting connection with the top wall of the second groove 15. In the process of repairing leakage, after the original isolation block 40 is detached from the expansion joint 11 and a new isolation block 40 is replaced, the isolation block 40 is in tight fit and clamping connection with the expansion joint 11, meanwhile, the plugging bosses 41 of the adjacent isolation blocks 40 are in tight fit and abutting connection with each other, and the upper end surfaces of the plugging bosses 41 are in tight fit and abutting connection with the top wall of the second groove 15, so that a good temporary plugging effect can be achieved on the expansion joint 11 at the leakage position.

Referring to fig. 3, 5 and 7, the second stud 16 and the third stud 18 are fixedly arranged on the tank body 10, the second stud 16 is penetrated through the outer water stop block 30, the second stud 16 is in threaded connection with the second nut 17, and the second nut 17 is abutted against the outer water stop block 30, so that the outer water stop block 30 is detachably and fixedly arranged on the tank body 10.

The two ends of the outer water stop block 30 are respectively provided with a wedge-shaped boss 31, the side surface of the wedge-shaped boss 31 is abutted against the side surface of the plugging boss 41, the plugging boss 41 on the adjacent isolation block 40 is positioned between the wedge-shaped bosses 31 of the adjacent outer water stop block 30, the compression sleeve 90 is detachably connected with the tank body 10, more specifically, the third stud 18 is penetrated through the outer water stop block 30 and the compression sleeve 90, the third stud 18 is in threaded connection with the third nut 19, and the third nut 19 is abutted against the compression sleeve 90. The pressing sleeve 90 is sleeved outside the wedge-shaped boss 31 of the adjacent outer water stop block 30, the side wall of the pressing sleeve 90 is inclined and attached to the inclined surface of the wedge-shaped boss 31, and the side wall which is inclined is pressed on the inclined surface of the wedge-shaped boss 31 through the pressing sleeve 90, so that the plugging boss 41 of the adjacent isolation block 40 and the wedge-shaped boss 31 of the adjacent outer water stop block 30 can be tightly clamped and attached, and the water seepage prevention effect is improved.

In this embodiment, the spacer 40, the outer water stop 30 and the pressing sleeve 90 may be made of rubber, and the second deformation holes 32 may be formed in the outer water stop 30 to adapt to the expansion and contraction deformation of the expansion joint 11.

Referring to fig. 8, in an alternative embodiment, in order to facilitate the repair operation of the water leakage portion of the expansion joint 11, a supporting portion 110 may be disposed on the tank body 10, the tank body 10 is fixedly mounted on the bridge pier 120 through the supporting portion 110, and the supporting portion 110 is disposed at intervals with the end surface of the tank body 10, so that a space is left between two adjacent tank bodies 10, and a constructor can repair the water leakage portion of the expansion joint 11.

The implementation principle of the expansion joint water stopping device of the aqueduct body of the aqueduct is as follows: according to the aqueduct body expansion joint water stop device, the fixing portion 22 of the inner water stop 20 is tightly pressed with the duct body 10 through the pressing belt 70, the bending portion 21 of the inner water stop 20 is tightly pressed with the duct body 10 through the extruding and pushing mechanism 50 and the side pressing plate 60, meanwhile, asphalt hemp threads 100 are filled in the expansion joint 11 between the isolation block 40 and the bending portion 21, and the sealing is carried out through the isolation block 40 and the outer water stop 30, so that the anti-seepage effect is effectively improved.

If leakage occurs, the outer water stop 30 at the leaking position is removed from the tank body 10, then the isolation block 40 at the leaking position is removed, then the new isolation block 40 is installed at the expansion joint 11, the expansion joint 11 at the leaking position is temporarily plugged, the leaking amount is controlled at a lower level so as to facilitate construction and replacement of the outer water stop 30, the tank body 10 is correspondingly trimmed so as to be well matched with the new outer water stop 30, and then the new outer water stop 30 is installed on the tank body 10, so that repair of the leaking position can be completed.

The embodiments of this embodiment are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, in which like parts are denoted by like reference numerals. Therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. The aqueduct body expansion joint water stopping device is characterized by comprising:

the groove body (10) is provided with a plurality of groove bodies (10), expansion joints (11) are formed between the end faces of the adjacent groove bodies (10), the groove bodies (10) are provided with supporting parts (110), and the supporting parts (110) are arranged at intervals with the end faces of the groove bodies (10);

the inner water stop (20) is respectively connected with two adjacent groove bodies (10), and the inner water stop (20) is blocked at an expansion joint (11) close to the inner side wall of the groove body (10);

the outer water stop blocks (30) are arranged, the plurality of outer water stop blocks (30) are detachably connected with two adjacent groove bodies (10) respectively, and the outer water stop blocks (30) are blocked at expansion joints (11) close to the outer side walls of the groove bodies (10);

the isolation blocks (40) are arranged, the isolation blocks (40) are arranged in a plurality, the isolation blocks (40) are filled and plugged in the expansion joints (11), and the isolation blocks (40) are located between the inner water stop strips (20) and the outer water stop blocks (30).

2. The aqueduct body expansion joint water stop device according to claim 1, further comprising a push mechanism (50) and a side pressure plate (60), wherein the inner water stop strip (20) comprises a bending part (21) and fixing parts (22) which are positioned at two sides of the bending part (21) and fixedly connected with the bending part (21), the fixing parts (22) are respectively fixedly connected with adjacent aqueduct bodies (10), the bending part (21) is positioned in the expansion joint (11), one side surface of the side pressure plate (60) is abutted with the inner side wall of the bending part (21), and the push mechanism (50) is arranged on the aqueduct bodies (10) and acts on the other side surface of the side pressure plate (60).

3. The aqueduct body expansion joint water stop device according to claim 2, wherein the extruding and pushing mechanism (50) comprises a support (51), a bolt (52) and an extruding and pushing block (53), the support (51) is connected with the aqueduct body (10), the extruding and pushing block (53) is slidably arranged on the support (51), a wedge surface is arranged on the extruding and pushing block (53), the bolt (52) is in threaded connection with the support (51), and the end part of the bolt (52) can be in butt joint with the wedge surface and push the extruding and pushing block (53) to be in butt joint with the side pressure plate (60).

4. The aqueduct body expansion joint water stopping device according to claim 3, further comprising a pressing belt (70), wherein a first groove (12) is formed in the end portion, close to the inner side wall, of the aqueduct body (10), the support (51) is inserted into the bending part (21), the support (51) is provided with a connecting plate (513), the fixing part (22), the pressing belt (70) and the connecting plate (513) are sequentially stacked on the bottom wall of the first groove (12), a first stud (13) is fixedly arranged on the aqueduct body (10), the first stud (13) is arranged on the fixing part (22), the pressing belt (70) and the connecting plate (513) in a penetrating mode, a first nut (14) is connected to the first stud (13) in a threaded mode, and the first nut (14) is in butt joint with the connecting plate (513).

5. The aqueduct body expansion joint water stop device according to claim 4, wherein the upper surface of the inner water stop strip (20) and the side wall of the first groove (12) adjacent to the aqueduct body (10) are enclosed to form a filling area (80), and the filling area (80) is filled with acrylic mortar.

6. The aqueduct body expansion joint water stop device according to claim 1, wherein the isolation blocks (40) are tightly clamped in the expansion joint (11) close to one side of the outer side wall of the aqueduct body (10), adjacent isolation blocks (40) are tightly matched and abutted with each other, a second groove (15) is formed in the end part, close to the outer side wall, of the aqueduct body (10), and the outer water stop block (30) is detachably arranged on the top wall of the second groove (15) and is tightly matched and abutted with the isolation blocks (40).

7. The aqueduct body expansion joint water stop device according to claim 6, wherein the two ends of the isolation block (40) are respectively provided with a plugging boss (41), the plugging bosses (41) of adjacent isolation blocks (40) are in tight fit and butt joint with each other, and the upper end face of the plugging boss (41) is in tight fit and butt joint with the top wall of the second groove (15).

8. The aqueduct body expansion joint water stop device according to claim 7, further comprising a pressing sleeve (90), wherein wedge-shaped bosses (31) are respectively arranged at two ends of the outer water stop block (30), the side surfaces of the wedge-shaped bosses (31) are abutted against the side surfaces of the plugging bosses (41), the plugging bosses (41) on the adjacent isolation blocks (40) are positioned between the wedge-shaped bosses (31) of the adjacent outer water stop block (30), the pressing sleeve (90) is detachably connected with the aqueduct body (10) and sleeved outside the wedge-shaped bosses (31) of the adjacent outer water stop block (30), and the side walls of the pressing sleeve (90) are inclined in fit with the inclined surfaces of the wedge-shaped bosses (31).

9. The aqueduct body expansion joint water stopping device according to claim 8, wherein a second stud (16) and a third stud (18) are fixedly arranged on the aqueduct body (10), the second stud (16) is arranged on the outer water stopping block (30) in a penetrating mode, a second nut (17) is connected to the second stud (16) in a threaded mode, the second nut (17) is abutted to the outer water stopping block (30), the third stud (18) is arranged on the outer water stopping block (30) in a penetrating mode and is in a pressing sleeve (90), a third nut (19) is connected to the third stud (18) in a threaded mode, the third nut (19) is in an abutting mode and is provided with a second deformation hole (32) on the outer water stopping block (30).

10. The aqueduct body expansion joint water stop device according to claim 6, wherein the isolation block (40) and the bending part (21) of the inner water stop belt (20) are arranged at intervals, and asphalt hemp threads (100) are filled in the expansion joint (11) between the isolation block (40) and the bending part (21).