CN113846660B - Connecting and water-stopping device used between steel cofferdam box bodies - Google Patents
Connecting and water-stopping device used between steel cofferdam box bodies Download PDFInfo
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- CN113846660B CN113846660B CN202111086960.0A CN202111086960A CN113846660B CN 113846660 B CN113846660 B CN 113846660B CN 202111086960 A CN202111086960 A CN 202111086960A CN 113846660 B CN113846660 B CN 113846660B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
- E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
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Abstract
The invention discloses a connecting and water-stopping device used between steel cofferdam box bodies, which comprises ear plates, a bolt mechanism, plate pins, an anti-seepage water-stopping structure and a tensioning device, wherein the ear plates are arranged on the upper part of the connecting and water-stopping device; the ear plate is fixedly arranged at the bottom of the steel cofferdam box body and is provided with a through hole; the bolt mechanism is fixedly arranged at the bottom of the steel cofferdam box body, is in inserted fit with the through holes of the lug plates and is used for hinging the bottom ends of the two steel cofferdam box bodies; the plate pin is arranged at the top of the steel cofferdam box body and is used for connecting the top ends of two adjacent steel cofferdam box bodies together; the seepage-proofing and water-stopping structure is fixedly arranged on the butt joint surface of the two adjacent steel cofferdam box bodies and is used for sealing and connecting the two steel cofferdam box bodies; the tensioning device is fixedly arranged at the end part of the steel cofferdam box body and used for tensioning the two steel cofferdam box bodies to enable the butt joint surfaces to be attached and compressing the anti-seepage water-stopping structure between the two steel cofferdam box bodies. The connecting water-stopping device can realize seepage-proofing and water-stopping between the sinking and floating assembly type steel cofferdam boxes applied to the water diversion channel.
Description
Technical Field
The invention relates to the technical field of diversion canal cofferdam equipment, in particular to a connecting and water-stopping device used between steel cofferdam box bodies.
Background
Most steel cofferdam equipment adopts the method of piling and fixing on the canal lining plate to form the cofferdam, and the method has the advantages of limited water retaining depth, difficulty in adapting to different canal sections, inconvenience in construction and dismantling and low recycling rate. Therefore, the assembled steel cofferdam equipment which can be assembled in water, can be poured into water and sink to a designated position and can pump water and float up after use is needed.
For the seepage-proofing and water-stopping conditions of cofferdam equipment, two modes of gravity type water stopping and anchoring type water stopping are mostly adopted. The gravity type water stopping adopts the self weight of equipment to extrude the water stopping material to achieve the effect of seepage prevention and water stopping. The anchoring type water stopping mode adopts a water stopping surface preset base, and the anchoring device is utilized to fix the water stopping material on the base, so that the anti-seepage water stopping effect is achieved.
For water stopping between the sinking and floating assembly type steel cofferdam box bodies, the water stopping surface is in the horizontal direction, and the water stopping effect cannot be realized by utilizing the gravity of the box bodies. The water stop surfaces between the steel cofferdam box bodies are sealed and fixed in advance, and the underwater assembly of the steel cofferdam box bodies cannot be realized.
Disclosure of Invention
In view of the above, the invention provides a connecting and water-stopping device for steel cofferdam box bodies, which can realize seepage-proofing and water-stopping for the sinking and floating assembly type steel cofferdam box bodies applied to the diversion canal.
The invention adopts the following specific technical scheme:
a connecting and water-stopping device used between steel cofferdam box bodies comprises ear plates, a bolt mechanism, plate pins, an anti-seepage water-stopping structure and a tensioning device;
the ear plates are fixedly arranged at the bottom of the steel cofferdam box body and are provided with through holes;
the bolt mechanism is fixedly arranged at the bottom of the steel cofferdam box body, is in inserting fit with the through holes of the lug plates and is used for hinging the bottom ends of two adjacent steel cofferdam box bodies together;
the plate pin is arranged at the top of the steel cofferdam box body and is used for connecting the top ends of two adjacent steel cofferdam box bodies together;
the seepage-proofing and water-stopping structure is fixedly arranged on the butt joint surface of two adjacent steel cofferdam box bodies and is used for sealing and connecting the two steel cofferdam box bodies;
the tensioning device is fixedly installed at the end part of the steel cofferdam box body and used for tensioning the two steel cofferdam box bodies to enable the butt joint surfaces to be attached and compressing the anti-seepage water-stop structure between the two steel cofferdam box bodies.
Furthermore, the ear plates comprise a double ear plate with two through holes, a single ear plate with one through hole, two transition plates and two ear plate seats;
the inner parts of two adjacent steel cofferdam box bodies are respectively and fixedly connected with an ear plate seat;
the double-lug plate is fixedly connected to a lug plate seat through a transition plate;
the single lug plate is fixedly connected to the other lug plate seat through the other transition plate;
when two steel cofferdam box bodies are connected, the single lug plate is inserted between the double lug plates, the two through holes of the double lug plates and the through hole of the single lug plate are superposed with each other, and the bolt mechanism is inserted into the through holes of the double lug plates and the through hole of the single lug plate, so that the bottom ends of the two steel cofferdam box bodies are hinged.
Furthermore, the lug plate seat is welded and connected to the framework of the steel cofferdam box body.
Furthermore, the bolt mechanism comprises a transmission fork, an upper transmission shaft, a lower transmission shaft, a pin shaft, a round pin, a guide sleeve and a bolt mechanism seat;
one end of the transmission fork is connected with the top end of the upper transmission shaft and is used for driving the upper transmission shaft to rotate;
the upper transmission shaft is rotatably arranged on the steel cofferdam box body through a bolt mechanism seat, and the bottom end of the upper transmission shaft is connected with the top end of the lower transmission shaft through the pin shaft;
the bottom end of the lower transmission shaft can be rotatably arranged on the steel cofferdam box body and is in transmission connection with the round pin, and the lower transmission shaft is used for converting the rotation of the lower transmission shaft into the movement of the round pin along the horizontal direction;
the guide sleeve is arranged on the steel cofferdam box body through the bolt mechanism seat, sleeved at one end of the round pin and used for guiding the round pin;
when the through holes of the double-lug plate and the single-lug plate are coincident, the transmission fork is rotated to drive the upper transmission shaft to rotate clockwise, the upper transmission shaft drives the lower transmission shaft to rotate clockwise through the pin shaft, the lower transmission shaft drives the round pin to move along the axis direction of the guide sleeve and penetrate through the through holes of the double-lug plate and the single-lug plate, and therefore the hinging of two adjacent steel cofferdam box bodies is achieved.
Furthermore, a gear is arranged at the bottom end of the lower transmission shaft;
the surface of the round pin is provided with a plurality of teeth which are distributed along the axial direction of the round pin and are meshed with the gear;
the bottom end of the lower transmission shaft is arranged on the steel cofferdam box body through a fixing sleeve.
Furthermore, the plate pin comprises a square pin, a vertical pin and two plate pin seats;
at least one plate pin seat is arranged at the top of each two adjacent steel cofferdam box bodies;
the plate pin seat is provided with at least one first insertion hole along the vertical direction;
the square pin is provided with at least two second jacks penetrating through the thickness of the square pin;
when two adjacent steel cofferdam box bodies are connected, the plate pin bases of the two steel cofferdam box bodies are butted, the square pins are arranged in the plate pin bases, and the vertical pins are inserted into the first insertion holes and the second insertion holes which are overlapped in the vertical direction so as to connect the tops of the two steel cofferdam box bodies.
Furthermore, the anti-seepage water-stop structure comprises concave water-stop rubber, convex water-stop rubber, two groove-shaped bases, two bolts, two gaskets, two nuts and two gunwale angle steels;
a gunwale angle steel is fixedly arranged on the butt joint surface of each two adjacent steel cofferdam box bodies;
one groove-shaped base is fixedly connected with one broadside angle steel, and the other groove-shaped base is fixedly connected with the other broadside angle steel;
the concave water stop rubber is fixedly arranged on a groove-shaped base of a steel cofferdam box body through bolts, washers and nuts;
the convex water stop rubber is fixedly arranged on the groove-shaped base of the other steel cofferdam box body through bolts, washers and nuts;
when two adjacent steel cofferdam box bodies are connected, the concave water-stopping rubber and the convex water-stopping rubber are in concave-convex fit, and seepage prevention and water stopping are realized.
Furthermore, the groove-shaped base is welded and connected with the gunwale angle steel.
Furthermore, the tensioning device comprises a cable tightener, a nylon rope, a fan-shaped rope guide seat, a circular guide wheel and a tensioning round button;
the cable tightener is arranged at the end part of the deck surface of the steel cofferdam box body;
the nylon rope extends out of the cable tightener, bypasses a fan-shaped rope guide seat at the top of the end plate of the adjacent steel cofferdam box body and a circular guide wheel at the bottom of the end plate, bypasses the circular guide wheel at the bottom of the end plate of the steel cofferdam box body where the cable tightener is located and the fan-shaped rope guide seat at the top of the end plate, and finally one end of the nylon rope is fixed on a tightening round button at the top of the end plate of the adjacent steel cofferdam box body;
the cable tightener is used for tightening the nylon ropes, so that the two adjacent steel cofferdam box bodies are tightened and closed, and the seepage-proofing and water-stopping structure is compressed.
Has the advantages that:
1. the connecting and water-stopping device is used for connecting two steel cofferdam box bodies and comprises an ear plate and a bolt mechanism for connecting the bottoms of the two steel cofferdam box bodies, a plate pin for connecting the tops of the two steel cofferdam box bodies, an anti-seepage water-stopping structure clamped between the two steel cofferdam box bodies and a tensioning device for pressing the anti-seepage water-stopping structure between the two steel cofferdam box bodies, so that the lower parts of the two steel cofferdam box bodies are connected through the ear plate, and the upper parts of the two steel cofferdam box bodies are connected through the plate pin, therefore, the connecting and water-stopping device is convenient to assemble and good in stability;
2. the ear plate connected with the water stopping device is in auxiliary connection through the bolt mechanism, the bolt operation is moved from the bottom of the box body to the top of the box body through the arrangement of the upper transmission shaft and the lower transmission shaft, the operation is convenient, the force application distance can be increased through the transmission fork, the labor is saved, and the operation difficulty is reduced;
3. the anti-seepage water-stop structure connected with the water-stop device adopts the water-stop rubber in concave-convex fit to realize the sealing between the two steel cofferdam boxes, the water-stop rubber material is non-toxic and harmless, the water quality is not polluted, and the anti-seepage water-stop effect is more remarkable by adopting the mode of combining the concave section rubber and the convex section rubber;
4. the connecting water-stopping device realizes the compaction of the water-stopping rubber between the steel cofferdam box bodies by operating the cable tightener to tighten the nylon rope, and has the advantages of convenient operation, time saving and labor saving.
Drawings
FIG. 1 is a schematic structural view of a steel cofferdam using state of the steel cofferdam box body adopting the invention;
FIG. 2 is a schematic view of a connection structure of two steel cofferdam box bodies adopting the water stop device of the present invention;
FIG. 3 is a top view of the connection structure of two steel cofferdam box bodies in FIG. 2;
FIG. 4 is a schematic structural view of a steel cofferdam box unit of the present invention;
FIG. 5 is a schematic structural view of an ear plate connected to a water stopping device according to the present invention;
FIG. 6 is a schematic structural diagram of a latch mechanism of the water stopping device according to the present invention;
FIG. 7 is a schematic structural view of a plate pin of the present invention connected to a water stopping device;
fig. 8 is a cross-sectional schematic view of an impermeable water stopping structure of the connecting water stopping device of the invention;
fig. 9 is a schematic structural view of the tension device connected with the water stopping device of the present invention.
The water-stop device comprises 1-sinking and floating assembly type steel cofferdam, 2-lug plates, 3-bolt mechanisms, 4-plate pins, 5-seepage-prevention water-stop structures, 6-tensioning devices, 7-channels, 11-steel cofferdam box bodies, 12-steel cofferdam plates, 13-steel cofferdam inter-plate seepage-prevention water-stop devices, 14-steel cofferdam bottom seepage-prevention water-stop devices, 15-steel cofferdam box body inter-connection water-stop devices, 21-double lug plates, 22-single lug plates, 23-transition plates, 24-lug plate seats, 31-transmission forks, 32-upper transmission shafts, 33-lower transmission shafts, 34-pin shafts, 35-round pins, 36-guide sleeves, 37-bolt mechanism seats, 38-gears, 39-fixed sleeves, 41-square pins, 42-vertical pins, 43-plate pin seats, 51-concave water-stop rubbers, 52-convex water-stop rubbers, 53-groove-shaped seats, 54-bolts, 55-gaskets, 56-nuts, 57-flange angle steels, 61-tighteners, 62-nylon ropes, 63-rope guide button seats, 65-round guide wheels and 64-round guide wheels.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
As shown in the structure of figure 1, the assembled steel cofferdam 1 capable of sinking and floating is positioned at the bottom of a channel 7 and is formed by connecting a steel cofferdam box body 11, steel cofferdam plates 12, seepage-proofing and water-stopping devices 13 between the steel cofferdam plates, seepage-proofing and water-stopping devices 14 at the bottom of the steel cofferdam and connecting and water-stopping devices 15 between the steel cofferdam box bodies.
The embodiment of the invention provides a connecting and water-stopping device used among steel cofferdam box bodies, which comprises ear plates 2, a bolt mechanism 3, a plate pin 4, an anti-seepage water-stopping structure 5 and a tensioning device 6;
the ear plate 2 is fixedly arranged at the bottom of the steel cofferdam box body 11 and is provided with a through hole (not shown in the figure); as shown in the structure of fig. 4 and 5, the ear plate comprises a double ear plate 21 with two through holes, a single ear plate 22 with one through hole, two transition plates 23 and two ear plate seats 24; the inner parts of two adjacent steel cofferdam box bodies 11 are respectively and fixedly connected with an ear plate seat 24, and the ear plate seats 24 can be welded and connected with the framework of the steel cofferdam box bodies 11; the double ear plate 21 is fixedly connected with an ear plate seat 24 through a transition plate 23; the single ear plate 22 is fixedly connected to the other ear plate seat 24 through the other transition plate 23; when two steel cofferdam box bodies 11 are connected, the single lug plate 22 is inserted between the double lug plates 21, two through holes of the double lug plates 21 and one through hole of the single lug plate 22 are superposed with each other, and the bolt mechanism is inserted into the through holes of the double lug plates 21 and the single lug plate 22 to realize the hinging of the bottom ends of the two steel cofferdam box bodies 11; as shown in the structure of fig. 4, two double-lug plates 21 and two single-lug plates 22 are arranged at the bottom of each steel cofferdam box body 11, in two adjacent steel cofferdam box bodies 11, the single-lug plate 22 of one steel cofferdam box body 11 corresponds to the double-lug plate 21 of the other steel cofferdam box body 11, the double-lug plate 21 of one steel cofferdam box body 11 corresponds to the single-lug plate 22 of the other steel cofferdam box body 11, when the two steel cofferdam box bodies 11 are connected, the single-lug plate 22 corresponding to the position is inserted between the double-lug plates 21, and the two through holes of the double-lug plate 21 and one through hole of the single-lug plate 22 are mutually overlapped, so that the round pin 35 of the latch mechanism 3 is inserted to realize the hinge joint of the two steel cofferdam box bodies 11;
the bolt mechanism 3 is fixedly arranged at the bottom of the steel cofferdam box body 11, is in inserting fit with the through hole of the ear plate 2 and is used for hinging the bottom ends of the two adjacent steel cofferdam box bodies 11 together; as shown in the structures of fig. 4 and 6, the latch mechanisms 3 correspond to the number of the ear plates 2 one by one, and the latch mechanisms 3 are arranged adjacent to the double ear plates 21, that is, the latch mechanisms 3 are positioned beside the double ear plates 21; the bolt mechanism 3 comprises a transmission fork 31, an upper transmission shaft 32, a lower transmission shaft 33, a pin shaft 34, a round pin 35, a guide sleeve 36 and a bolt mechanism seat 37; one end of the transmission fork 31 is connected with the top end of the upper transmission shaft 32 and is used for driving the upper transmission shaft 32 to rotate, and the transmission fork 31 is used as a force application handle; the upper transmission shaft 32 is rotatably arranged on the steel cofferdam box body 11 through a bolt mechanism seat 37, and the bottom end of the upper transmission shaft is connected with the top end of the lower transmission shaft 33 through a pin shaft 34; the bottom end of the lower transmission shaft 33 is rotatably mounted on the steel cofferdam box body 11 and is in transmission connection with the round pin 35, and the rotation of the lower transmission shaft 33 is converted into the movement of the round pin 35 along the horizontal direction; the guide sleeve 36 is mounted on the steel cofferdam box body 11 through a bolt mechanism seat 37, sleeved at one end of the round pin 35 and used for guiding the round pin 35; when the through holes of the double-lug plate 21 and the single-lug plate 22 are overlapped, the rotary transmission fork 31 drives the upper transmission shaft 32 to rotate clockwise, the upper transmission shaft 32 drives the lower transmission shaft 33 to rotate clockwise through the pin shaft 34, and the lower transmission shaft 33 drives the round pin 35 to move along the axial direction of the guide sleeve 36 and penetrate through the through holes of the double-lug plate 21 and the single-lug plate 22, so that the adjacent two steel cofferdam box bodies are hinged; a gear rack transmission mechanism can be adopted between the lower transmission shaft 33 and the round pin to realize the reciprocating linear motion of the round pin 35; the bottom end of the lower transmission shaft 33 is provided with a gear 38; the surface of the round pin 35 is provided with a plurality of teeth distributed along the axial direction thereof and meshing with the gear 38; the bottom end of the lower transmission shaft 33 is arranged on the steel cofferdam box body 11 through a fixed sleeve 39, and the bottom end of the lower transmission shaft 33 can be protected through the fixed sleeve 39;
the plate pin 4 is arranged at the top of the steel cofferdam box body 11 and is used for connecting the top ends of two adjacent steel cofferdam box bodies 11 together; as shown in the structure of fig. 3 and 4, the tops of two steel cofferdam box bodies 11 are connected by 4 plate pins 4, and in the actual connection process, the number of the plate pins 4 can be set to be 2, 3, 5 or more; as shown in the structure of fig. 3, 4 and 7, the plate pin 4 comprises a square pin 41, a vertical pin 42 and two plate pin bases 43; at least one plate pin seat 43 is arranged at the top of the steel cofferdam box body 11; the plate pin boss 43 has at least one first insertion hole in the vertical direction; the square pin 41 is provided with at least two second insertion holes penetrating the thickness thereof; when two adjacent steel cofferdam box bodies 11 are connected, the plate pin bases 43 of the two steel cofferdam box bodies 11 are butted, the square pin 41 is arranged in the plate pin base 43, and the vertical pin 42 is inserted into the first jack and the second jack which are overlapped with each other along the vertical direction so as to connect the tops of the two steel cofferdam box bodies 11;
the seepage-proofing and water-stopping structure 5 is fixedly arranged on the butt joint surface of the two adjacent steel cofferdam box bodies 11 and is used for sealing and connecting the two steel cofferdam box bodies 11; as shown in the structures of fig. 2, 8 and 9, the seepage-proofing and water-stopping structure 5 comprises a concave water-stopping rubber 51, a convex water-stopping rubber 52, two groove-shaped bases 53, two bolts 54, two washers 55, two nuts 56 and two gunwale angles 57; a gunwale angle steel 57 is fixedly arranged on the butt joint surface of each two adjacent steel cofferdam box bodies 11; one trough-shaped base 53 is fixedly connected to one gunwale angle steel 57, the other trough-shaped base 53 is fixedly connected to the other gunwale angle steel 57, and the trough-shaped base 53 can be connected to the gunwale angle steel 57 in a welding mode; the concave water-stop rubber 51 is fixedly arranged on a groove-shaped base 53 of the steel cofferdam box body 11 through a bolt 54, a washer 55 and a nut 56; the convex water-stop rubber 52 is fixedly arranged on a groove-shaped base 53 of the other steel cofferdam box body 11 through a bolt 54, a washer 55 and a nut 56; when two adjacent steel cofferdam box bodies 11 are connected, the concave water-stop rubber 51 and the convex water-stop rubber 52 are in concave-convex fit, so that seepage-proofing and water-stopping are realized;
the tensioning device 6 is fixedly arranged at the end part of the steel cofferdam box body 11 and used for tensioning the two steel cofferdam box bodies 11 to enable the butt joint surfaces to be attached and compressing the anti-seepage water-stop structure 5 between the two steel cofferdam box bodies 11. As shown in the structure of fig. 2 and 9, the tensioning device 6 comprises a cable tightener 61, a nylon rope 62, a fan-shaped rope guide base 63, a circular guide wheel 64 and a tensioning circular button 65; the cable tightener 61 is arranged at the end part of the deck surface of the steel cofferdam box body 11; the nylon rope 62 extends out of the cable tightener 61, bypasses a fan-shaped rope guide seat 63 at the top of the end plate of the adjacent steel cofferdam box 11 and a circular guide wheel 64 at the bottom of the end plate, bypasses the circular guide wheel 64 at the bottom of the end plate of the steel cofferdam box 11 where the cable tightener 61 is located and the fan-shaped rope guide seat 63 at the top of the end plate, and finally one end of the nylon rope 62 is fixed to a tightening round button 65 at the top of the end plate of the adjacent steel cofferdam box 11; the cable tightener 61 is used for tightening the nylon rope 62, so that the two adjacent steel cofferdam box bodies 11 are tightened and closed, and the anti-seepage water-stop structure 5 is compressed.
The connecting water stopping device is used for connecting two steel cofferdam box bodies 11 and comprises an ear plate 2 and a bolt mechanism 3 which are used for connecting the bottoms of the two steel cofferdam box bodies 11, a plate pin 4 which is used for connecting the tops of the two steel cofferdam box bodies 11, an anti-seepage water stopping structure 5 which is clamped between the two steel cofferdam box bodies 11 and a tensioning device 6 which is used for compressing the anti-seepage water stopping structure 5 between the two steel cofferdam box bodies 11, so that the lower parts of the two steel cofferdam box bodies 11 are connected through the ear plate 2, and the upper parts are connected through the plate pin 4, therefore, the assembly is convenient and the stability is good; the ear plates 2 are in auxiliary connection through the bolt mechanisms 3, the bolt operation is moved from the bottom of the box body to the top of the box body through the arrangement of the upper transmission shaft and the lower transmission shaft, the operation is convenient, the force application distance can be increased through the transmission fork 31, the labor is saved, and the operation difficulty is reduced; the anti-seepage water-stop structure 5 adopts the water-stop rubber in concave-convex matching to realize the sealing between the two steel cofferdam box bodies 11, the water-stop rubber material is non-toxic and harmless and does not pollute water, and the anti-seepage water-stop effect is more remarkable by adopting a mode of combining the concave section rubber and the convex section rubber; the mode of tightening up the nylon rope 62 through the straining device 6 operation euphroe 61 realizes compressing tightly of stagnant water rubber between the steel cofferdam box 11, convenient operation, labour saving and time saving.
By adopting the connecting water stopping device, the steel cofferdam box bodies 11 float on the water surface, two adjacent steel cofferdam box bodies 11 are driven to transversely approach each other, when the through holes of the four pairs of lug plates 2 are superposed with each other, the transmission fork 31 is rotated, the round pin 35 is driven to linearly move along the guide sleeve 36 and pass through the through holes of the lug plates 2, and the lug plates 2 are locked to complete the transverse bottom connection of the adjacent steel cofferdam box bodies 11; and operating the cable tightener 61 to tighten the nylon rope 62, closing the hinge points of the adjacent two steel cofferdam box bodies 11 around the through holes of the lug plates 2, contacting and pressing the convex water-stop rubber 52 and the concave water-stop rubber 51 between the steel cofferdam box bodies 11, and manually inserting the vertical pins 42 when the through holes of the four pairs of the plate pins 4 are mutually overlapped with the through holes of the corresponding plate pin bases 43 to lock the plate pins 4 so as to complete the transverse top connection of the adjacent steel cofferdam box bodies 11. At the moment, the adjacent steel cofferdam boxes 11 are connected and fixed, and the concave water-stop rubber 51 and the convex water-stop rubber 52 between the steel cofferdam box bodies 11 are pressed in place, so that the seepage-proofing and water-stopping effects are achieved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A connecting and water-stopping device used between steel cofferdam box bodies is characterized by comprising ear plates (2), a bolt mechanism (3), plate pins (4), an anti-seepage water-stopping structure (5) and a tensioning device (6);
the ear plate is fixedly arranged at the bottom of the steel cofferdam box body (11) and is provided with a through hole;
the bolt mechanism is fixedly arranged at the bottom of the steel cofferdam box body, is in inserted fit with the through holes of the lug plates and is used for hinging the bottom ends of two adjacent steel cofferdam box bodies together;
the plate pin is arranged at the top of the steel cofferdam box body and is used for connecting the top ends of two adjacent steel cofferdam box bodies together;
the seepage-proofing and water-stopping structure is fixedly arranged on the butt joint surface of two adjacent steel cofferdam box bodies and is used for sealing and connecting the two steel cofferdam box bodies;
the tensioning device is fixedly arranged at the end part of the steel cofferdam box body and is used for tensioning the two steel cofferdam box bodies to enable the butt joint surfaces to be attached and compressing the anti-seepage water-stop structure between the two steel cofferdam box bodies;
the ear plate (2) comprises a double-ear plate (21) with two through holes, a single-ear plate (22) with one through hole, two transition plates (23) and two ear plate seats (24);
the inner parts of two adjacent steel cofferdam box bodies (11) are respectively and fixedly connected with an ear plate seat (24);
the double-lug plate (21) is fixedly connected with a lug plate seat (24) through a transition plate (23);
the single lug plate (22) is fixedly connected to the other lug plate seat (24) through the other transition plate (23);
when two steel cofferdam box bodies (11) are connected, the single lug plate (22) is inserted between the double lug plates (21), two through holes of the double lug plates (21) and one through hole of the single lug plate (22) are superposed with each other, and the bolt mechanism is inserted into the through holes of the double lug plates (21) and the single lug plate (22) to realize the hinging of the bottom ends of the two steel cofferdam box bodies (11);
the bolt mechanism (3) comprises a transmission fork (31), an upper transmission shaft (32), a lower transmission shaft (33), a pin shaft (34), a round pin (35), a guide sleeve (36) and a bolt mechanism seat (37);
one end of the transmission fork (31) is connected with the top end of the upper transmission shaft (32) and is used for driving the upper transmission shaft (32) to rotate;
the upper transmission shaft (32) is rotatably arranged on the steel cofferdam box body (11) through a bolt mechanism seat (37), and the bottom end of the upper transmission shaft is connected with the top end of the lower transmission shaft (33) through a pin shaft (34);
the bottom end of the lower transmission shaft (33) is rotatably arranged on the steel cofferdam box body (11) and is in transmission connection with the round pin (35) for converting the rotation of the lower transmission shaft (33) into the movement of the round pin (35) along the horizontal direction;
the guide sleeve (36) is arranged on the steel cofferdam box body (11) through the bolt mechanism seat (37), is sleeved at one end of the round pin (35) and is used for guiding the round pin (35);
when the through holes of the double lug plates (21) and the single lug plates (22) are overlapped, the transmission fork (31) is rotated to drive the upper transmission shaft (32) to rotate clockwise, the upper transmission shaft (32) drives the lower transmission shaft (33) to rotate clockwise through the pin shaft (34), and the lower transmission shaft (33) drives the round pin (35) to move along the axial direction of the guide sleeve (36) and penetrate through the through holes of the double lug plates (21) and the single lug plates (22), so that the adjacent two steel cofferdam box bodies are hinged;
the tensioning device (6) comprises a cable tightener (61), a nylon rope (62), a fan-shaped rope guide seat (63), a circular guide wheel (64) and a tensioning round button (65);
the cable tightener (61) is arranged at the end part of the deck surface of the steel cofferdam box body (11);
the nylon rope (62) extends out of the cable tightener (61) and bypasses a fan-shaped rope guide seat (63) at the top of the end plate of the adjacent steel cofferdam box body (11) and a circular guide wheel (64) at the bottom of the end plate, then bypasses the circular guide wheel (64) at the bottom of the end plate of the steel cofferdam box body (11) where the cable tightener (61) is located and the fan-shaped rope guide seat (63) at the top of the end plate, and finally one end of the nylon rope (62) is fixed on a tightening round button (65) at the top of the end plate of the adjacent steel cofferdam box body (11);
the cable tightener (61) is used for tightening the nylon rope (62), so that two adjacent steel cofferdam box bodies (11) are tightened and closed, and the anti-seepage water-stop structure (5) is compressed.
2. A connecting and sealing device as claimed in claim 1, characterized in that said ear seat (24) is welded to the framework of said steel cofferdam tank (11).
3. A connecting water stopping device according to claim 1, wherein a gear is mounted at the bottom end of the lower transmission shaft (33);
the surface of the round pin (35) is provided with a plurality of teeth which are distributed along the axial direction of the round pin and are meshed with the gear;
the bottom end of the lower transmission shaft (33) is installed on the steel cofferdam box body (11) through a fixing sleeve.
4. A connecting water stop device according to claim 1, characterized in that the plate pin (4) comprises a square pin (41), a vertical pin (42) and two plate pin seats (43);
at least one plate pin seat (43) is arranged at the top of each two adjacent steel cofferdam box bodies (11);
the plate pin boss (43) has at least one first insertion hole in a vertical direction;
the square pin (41) is provided with at least two second insertion holes penetrating through the thickness of the square pin;
when two adjacent steel cofferdam box bodies (11) are connected, the plate pin seats (43) of the two steel cofferdam box bodies (11) are butted, the square pins (41) are arranged in the plate pin seats (43), and the vertical pins (42) are inserted into the first insertion holes and the second insertion holes which are overlapped with each other in the vertical direction so as to connect the tops of the two steel cofferdam box bodies (11).
5. A connecting water stop device according to claim 4, characterized in that the anti-seepage water stop structure (5) comprises a concave water stop rubber (51), a convex water stop rubber (52), two groove-shaped bases (53), two bolts (54), two washers (55), two nuts (56) and two gunwale angles (57);
a gunwale angle steel (57) is fixedly arranged on the butt joint surface of each two adjacent steel cofferdam box bodies (11);
one trough-shaped base (53) is fixedly connected with one gunwale angle steel (57), and the other trough-shaped base (53) is fixedly connected with the other gunwale angle steel (57);
the concave water stop rubber (51) is fixedly arranged on a groove-shaped base (53) of the steel cofferdam box body (11) through a bolt (54), a gasket (55) and a nut (56);
the convex water-stopping rubber (52) is fixedly arranged on a groove-shaped base (53) of the other steel cofferdam box body (11) through a bolt (54), a gasket (55) and a nut (56);
when two adjacent steel cofferdam box bodies (11) are connected, the concave water stop rubber (51) and the convex water stop rubber (52) are in concave-convex fit, and seepage prevention and water stop are realized.
6. A connecting water stop device according to claim 5, characterized in that the trough-shaped base (53) is welded to the gunwale angle (57).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111086960.0A CN113846660B (en) | 2021-09-16 | 2021-09-16 | Connecting and water-stopping device used between steel cofferdam box bodies |
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| CN202111086960.0A CN113846660B (en) | 2021-09-16 | 2021-09-16 | Connecting and water-stopping device used between steel cofferdam box bodies |
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| CN115162384B (en) * | 2022-07-21 | 2023-07-14 | 河南省水利第一工程局 | Non-water-cut construction cofferdam structure of pump station forebay and non-water-cut construction method |
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| CN103670450B (en) * | 2012-09-06 | 2018-09-28 | 上海市政工程设计研究总院（集团）有限公司 | A kind of tunnel opening ventilation section flood control water-retaining structure and its construction method |
| CN102943482B (en) * | 2012-11-07 | 2015-01-21 | 中交第二航务工程局有限公司 | Prefabricate abutment pre-tightening type sealing up cofferdam |
| JP6234525B1 (en) * | 2016-08-26 | 2017-11-22 | 第一建設工業株式会社 | Water stoppage method for temporary closing structure used for pier repair and reinforcement work |
| CN107447766B (en) * | 2017-06-28 | 2019-05-17 | 中国船舶重工集团应急预警与救援装备股份有限公司 | A kind of cofferdam device and its application method being suitable for slope surface |
| CN108978688A (en) * | 2018-07-23 | 2018-12-11 | 中交航局第三工程有限公司 | Facilitate hood type waling and the application of installing and dismounting |
| CN109457715A (en) * | 2018-11-29 | 2019-03-12 | 中设设计集团股份有限公司 | A kind of revetment cofferdam |
| CN110424333B (en) * | 2019-08-12 | 2024-04-02 | 长江勘测规划设计研究有限责任公司 | Cofferdam repairing equipment and assembly method for canal lining structure in water delivery state |
| CN111663499A (en) * | 2020-05-20 | 2020-09-15 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Cofferdam equipment applied to diversion canal and assembling method thereof |
| CN212641489U (en) * | 2020-05-29 | 2021-03-02 | 江西聚源建设工程有限公司 | Novel cofferdam is used in water conservancy construction |
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