CN219710358U

CN219710358U - Prefabricated cofferdam structure

Info

Publication number: CN219710358U
Application number: CN202321249248.2U
Authority: CN
Inventors: 王停; 杨谋志; 马正山; 李杰成
Original assignee: Anhui Ruifeng Water Conservancy Construction Co ltd
Current assignee: Anhui Ruifeng Water Conservancy Construction Co ltd
Priority date: 2023-05-18
Filing date: 2023-05-18
Publication date: 2023-09-19
Anticipated expiration: 2033-05-18

Abstract

The utility model discloses a prefabricated cofferdam structure, which relates to the technical field of hydraulic engineering construction and comprises a plurality of prefabricated monomers, wherein adjacent prefabricated monomers are spliced end to form a cofferdam, a base is arranged at the bottom of each prefabricated monomer, a plurality of through holes are formed in the base, an anchor rod is inserted into each through hole, a connecting rod is arranged on each prefabricated monomer, a connecting hole is formed in each prefabricated monomer, and the connecting holes are used for inserting the connecting rods on the adjacent prefabricated monomers. The utility model has the effect of reducing the construction cost consumed by cofferdam construction.

Description

Prefabricated cofferdam structure

Technical Field

The utility model relates to the technical field of hydraulic engineering construction, in particular to a prefabricated cofferdam structure.

Background

The cofferdam is a permanent or temporary water retaining facility built in the hydraulic engineering construction process, is used for draining or cutting off water flow, is convenient for protecting hydraulic engineering facilities built at the downstream of the cofferdam, and also creates the construction conditions of hydraulic engineering.

The common earth-rock cofferdam in hydraulic engineering is characterized in that slag soil and broken stone are continuously piled up on a riverbed along the width direction of the riverbed and tamped to form a cofferdam with water blocking capacity until the height of the cofferdam is higher than the normal water level in a riverway, so that hydraulic engineering facilities at the downstream of the cofferdam are protected.

However, the cofferdam has the advantages that a large amount of broken stones and dregs are required to be excavated, the excavated broken stones and dregs are required to be transported, and the broken stones and dregs are compacted through rolling equipment, so that a large amount of manpower and material resources are consumed in the construction of the cofferdam, and the construction cost is increased.

Disclosure of Invention

The utility model provides a prefabricated cofferdam structure in order to reduce construction cost consumed by cofferdam construction.

The utility model provides a prefabricated cofferdam structure, which adopts the following technical scheme:

the utility model provides a prefabricated cofferdam structure, includes a plurality of prefabrication monomer, adjacent prefabrication monomer concatenation end to end forms the cofferdam, prefabrication monomer's bottom is provided with the base, a plurality of through-hole has been seted up on the base, every all be inserted in the through-hole and be equipped with the anchor pole, be provided with the connecting rod on the prefabrication monomer, the connecting hole has been seted up on the prefabrication monomer, the connecting hole supplies to be adjacent on the prefabrication monomer the connecting rod is pegged graft.

Through the technical scheme, when an operator needs to build a cofferdam on a riverbed, leveling treatment is carried out on the riverbed, then a plurality of prefabricated monomers are lifted to the riverbed through lifting equipment, adjacent prefabricated monomers are spliced end to form the cofferdam, then an anchor rod is inserted into a corresponding through hole and is inserted into a soil body at the bottom of the riverbed, so that the possibility that the prefabricated monomers are displaced on the riverbed is reduced, and finally a connecting rod is inserted into a connecting hole of the adjacent prefabricated monomers to improve the integrity of the adjacent prefabricated monomers.

Therefore, compared with the traditional earth rock cofferdam, the cofferdam formed by a plurality of prefabricated monomers does not need to excavate a large amount of broken stones and dregs, and does not need to transport and tamp the broken stones and the dregs, so that the manpower and material resources consumed by cofferdam construction are reduced, and the construction cost consumed by cofferdam construction is reduced.

The present utility model may be further configured in a preferred example to: the utility model discloses a prefabricated unit, including prefabricated unit, connecting rod, guide block, connecting rod sliding mounting in the connecting rod has been seted up on the prefabricated unit in the sliding hole, the lead screw is installed to prefabricated unit internal rotation, connecting rod threaded connection in the lead screw, install the guide block on the connecting rod, the confession has been seted up to the inner wall of sliding hole the gliding guide slot of guide block.

Through above-mentioned technical scheme, after a plurality of prefabricated monomer end to end arranges in the riverbed for the connecting rod aims at adjacent prefabricated free connecting hole, and operating personnel is through rotating the lead screw, and lead screw drive connecting rod outwards removes along the sliding hole and inserts adjacent prefabricated free connecting hole in, accomplishes adjacent prefabricated free connection.

The present utility model may be further configured in a preferred example to: the driving hole is formed in the prefabricated single body, the driving shaft is rotatably installed in the driving hole, a bevel gear I is installed at one end of the driving shaft extending into the prefabricated single body, a hand wheel is installed at one end of the driving shaft extending out of the prefabricated single body, a bevel gear II is installed on the lead screw, and the bevel gear I and the bevel gear II are meshed with each other.

Through above-mentioned technical scheme, when operating personnel need insert adjacent prefabricated free connecting hole with the connecting rod in, through rotating the hand wheel, the hand wheel passes through the drive shaft and drives bevel gear one and rotate, and bevel gear one drives bevel gear two and rotate, and bevel gear two drives the lead screw and rotate, and lead screw drive connecting rod peg graft in adjacent prefabricated free connecting hole.

The present utility model may be further configured in a preferred example to: the anchor rod comprises an anchor part and a blocking part positioned above the anchor part, the anchor part is fixedly connected with the blocking part, the anchor part is inserted into the through hole, a protective cap is arranged outside the blocking part, the blocking part is slidably installed in the protective cap, and the protective cap is connected onto the base through a bolt.

Through the technical scheme, the blocking part reduces the possibility that the blocking part is impacted by the barren stones on the riverbed under the protection effect of the protective cap, so that the protection of the blocking part is enhanced. In addition, because the blocking part is positioned between the base and the protective cap, under the blocking action of the base and the protective cap, the possibility of floating or sinking of the anchoring rod is reduced, thereby being beneficial to improving the anchoring action of the anchoring rod on the prefabricated monomer.

The present utility model may be further configured in a preferred example to: the base is provided with a sinking groove for plugging the blocking part, the sinking groove is communicated with the through hole, the protective cap is slidably mounted in the sinking groove, the bottom wall of the sinking groove is provided with a threaded hole, and the bolt is in threaded connection with the inner wall of the threaded hole.

Through the technical scheme, the blocking part can be inserted into the sinking groove, and the protective cap is slidably mounted in the sinking groove, so that the protection of the protective cap is enhanced, and meanwhile, the protection of the blocking part is further enhanced.

The present utility model may be further configured in a preferred example to: the inner wall of the sinking groove is provided with a guide strip, and the protective cap is provided with a second guide groove for the guide strip to slide.

Through the technical scheme, when the protective cap is required to be installed in the sinking groove, the second guide groove on the protective cap is aligned with the guide bar, and then the protective cap is pressed downwards, so that the bolt can be aligned with the threaded hole, and an operator can conveniently screw the bolt into the threaded hole.

The present utility model may be further configured in a preferred example to: a sealing groove is formed in the side wall of the prefabricated single body, and a sealing strip is embedded in the sealing groove.

Through the technical scheme, when the river bed upstream where the prefabricated cofferdam is located stores water, water flows under the blocking effect of the sealing strips, and the possibility that the water flows into the downstream of the cofferdam through the prefabricated single splicing gaps is reduced.

The present utility model may be further configured in a preferred example to: reinforcing grains are formed in the anchoring portions of each anchoring rod.

Through the technical scheme, as the reinforcing grains are formed on the anchoring part, after the anchoring rod is inserted into the soil body of the river bed, the contact area between the anchoring part and the soil body is increased, so that the possibility of floating or sinking of the anchoring rod is reduced.

In summary, the utility model has the following beneficial technical effects: compared with the traditional earth-rock cofferdam, the prefabricated cofferdam does not need to excavate and transport broken stone and dregs in a large quantity, and reduces the manpower and material resources consumed by cofferdam construction, thereby reducing the construction cost consumed by cofferdam construction.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present utility model.

Fig. 2 is a schematic view of an exploded structure of an anchor rod, a helmet, and a bolt.

Fig. 3 is a schematic cross-sectional view taken along A-A in fig. 2.

Fig. 4 is a schematic cross-sectional view taken along the direction B-B in fig. 2.

Reference numerals illustrate:

1. prefabricating a monomer; 11. a connecting rod; 111. a guide block; 12. a connection hole; 13. a sliding hole; 14. a screw rod; 141. bevel gears II; 15. a first guide groove; 16. a drive hole; 17. sealing grooves; 171. a sealing strip; 2. a base; 21. a through hole; 22. sinking grooves; 221. a threaded hole; 222. a guide bar; 3. an anchor rod; 31. an anchor portion; 311. reinforcing grains; 32. a blocking portion; 4. a drive shaft; 41. bevel gears I; 42. a hand wheel; 5. a protective cap; 51. a bolt; 52. and a second guide groove.

Detailed Description

The present utility model will be described in further detail with reference to fig. 1 to 4.

The embodiment of the utility model discloses a prefabricated cofferdam structure.

Referring to fig. 1, a prefabricated cofferdam structure comprises a plurality of prefabricated monomers 1, wherein the prefabricated monomers 1 are all arranged on a river bed, and adjacent prefabricated monomers 1 are spliced end to form a cofferdam. The outer wall of the upstream surface of the prefabricated single body 1 is obliquely arranged, the upstream surface of the prefabricated single body is vertically arranged, and the cross section of the prefabricated single body 1 gradually narrows from bottom to top.

Referring to fig. 2, a sealing groove 17 is formed in the side wall of the prefabricated unit 1, a sealing strip 171 is embedded in the sealing groove 17, and the possibility that water flows into the downstream of the cofferdam through the splicing gap of the prefabricated unit 1 is reduced under the blocking effect of the sealing strip 171.

Referring to fig. 1 and 2, the bottom of each prefabricated unit 1 is provided with a base 2 which is horizontally arranged, the base 2 and the prefabricated units 1 are integrally formed, four through holes 21 are formed in the base 2 in a penetrating mode, the four through holes 21 are located at four corners of the base 2 respectively, and an anchor rod 3 is inserted into each through hole 21.

Referring to fig. 1 and 2, the anchor rod 3 includes an anchor portion 31 and a blocking portion 32, the blocking portion 32 being located above the anchor portion 31, the blocking portion 32 being fixedly connected to the anchor portion 31. The anchoring portion 31 is inserted into the corresponding through hole 21, the bottom of the anchoring portion 31 is pointed, so that the anchoring portion 31 is conveniently inserted into the soil body, and a plurality of reinforcing grains 311 are formed in the anchoring portion 31. The base 2 is provided with a sinking groove 22 for plugging the blocking part 32, the sinking groove 22 is communicated with the through hole 21, the blocking part 32 is externally provided with a protective cap 5, the blocking part 32 is slidably installed in the protective cap 5, the protective cap 5 is slidably installed in the sinking groove 22, the bottom wall of the sinking groove 22 is provided with four threaded holes 221, the protective cap 5 is provided with four bolts 51, the four bolts 51 and the four threaded holes 221 are arranged in a one-to-one correspondence manner, the bolts 51 are in threaded connection with the inner walls of the corresponding threaded holes 221, the vertical inner wall of the sinking groove 22 is fixedly connected with a guide bar 222 which is vertically arranged, the protective cap 5 is provided with a guide groove II 52 which is used for the guide bar 222 to slide in a penetrating manner along the vertical direction, and operators can conveniently align the bolts 51 with the threaded holes 221.

Referring to fig. 3 and 4, a sliding hole 13 is formed in the side wall of the prefabricated unit 1 along the horizontal direction, a connecting rod 11 is slidably mounted in the sliding hole 13 along the horizontal direction, a connecting hole 12 is formed in the side wall of the prefabricated unit 1 along the horizontal direction, and the connecting hole 12 is used for plugging the connecting rod 11 on the adjacent prefabricated unit 1. The lead screw 14 is rotatably installed in the prefabricated unit 1, the connecting rod 11 is in threaded connection with the lead screw 14, the guide block 111 is installed on the connecting rod 11, and the guide groove I15 for sliding of the guide block 111 is formed in the inner wall of the sliding hole 13.

Referring to fig. 3 and 4, a driving hole 16 is formed in the back surface of the prefabricated unit 1 along the horizontal direction, a driving shaft 4 is rotatably installed in the driving hole 16, one end of the driving shaft 4 extends into the prefabricated unit 1, and the other end extends out of the prefabricated unit 1. One end of the driving shaft 4 extending into the prefabricated single body 1 is coaxially and fixedly connected with a bevel gear I41, one end of the driving shaft 4 extending out of the prefabricated single body 1 is fixedly connected with a hand wheel 42, the screw rod 14 is coaxially and fixedly connected with a bevel gear II 141, and the bevel gear I41 and the bevel gear II 141 are meshed with each other.

The implementation principle of the embodiment is as follows: when an operator needs to build a cofferdam on a riverbed, leveling treatment is performed on the riverbed, and a plurality of prefabricated monomers 1 are lifted to the riverbed through lifting equipment according to actual needs, so that connecting rods 11 are aligned with corresponding connecting holes 12.

Then, the anchor rod 3 is inserted into the through hole 21 so that the anchor portion 31 is inserted into the riverbed soil body and the blocking portion 32 abuts against the bottom wall of the sink 22.

Next, the helmet 5 is mounted in the sink 22 by the guide of the guide bar 222, and the helmet 5 is fixed in the sink 22 by the bolts 51.

Finally, by rotating the hand wheel 42, the hand wheel 42 drives the screw rod 14 to rotate through the first bevel gear 41 and the second bevel gear 141, and the screw rod 14 drives the connecting rod 11 to be inserted into the corresponding connecting hole 12.

Compared with the traditional earth-rock cofferdam, the prefabricated cofferdam does not need to excavate a large amount of broken stones and dregs, and does not need to transport and tamp the broken stones and the dregs, so that the manpower and material resources consumed by cofferdam construction are reduced, and the construction cost consumed by cofferdam construction is reduced.

The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in sequence, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. A prefabricated cofferdam structure which is characterized in that: including a plurality of prefabrication monomer (1), adjacent prefabrication monomer (1) concatenation end to end forms the cofferdam, prefabrication monomer (1) bottom is provided with base (2), a plurality of through-hole (21) have been seted up on base (2), every all be inserted in through-hole (21) and be equipped with anchor pole (3), be provided with connecting rod (11) on prefabrication monomer (1), connecting hole (12) have been seted up on prefabrication monomer (1), connecting hole (12) supply to be adjacent on prefabrication monomer (1) connecting rod (11) are pegged graft.

2. A prefabricated cofferdam structure as set forth in claim 1, wherein: the novel prefabricated single body is characterized in that a sliding hole (13) is formed in the prefabricated single body (1), the connecting rod (11) is slidably mounted in the sliding hole (13), a screw rod (14) is rotatably mounted in the prefabricated single body (1), the connecting rod (11) is in threaded connection with the screw rod (14), a guide block (111) is mounted on the connecting rod (11), and a guide groove I (15) for the sliding of the guide block (111) is formed in the inner wall of the sliding hole (13).

3. A prefabricated cofferdam structure as claimed in claim 2, wherein: the novel gear is characterized in that a driving hole (16) is formed in the prefabricated single body (1), a driving shaft (4) is rotatably mounted in the driving hole (16), a first bevel gear (41) is mounted at one end of the driving shaft (4) extending into the prefabricated single body (1), a hand wheel (42) is mounted at one end of the driving shaft (4) extending out of the prefabricated single body (1), a second bevel gear (141) is mounted on the lead screw (14), and the first bevel gear (41) and the second bevel gear (141) are meshed with each other.

4. A prefabricated cofferdam structure as set forth in claim 1, wherein: the anchor rod (3) comprises an anchor part (31) and a blocking part (32) arranged above the anchor part (31), the anchor part (31) is fixedly connected with the blocking part (32), the anchor part (31) is inserted into the through hole (21), a protective cap (5) is arranged outside the blocking part (32), the blocking part (32) is slidably mounted in the protective cap (5), and the protective cap (5) is connected onto the base (2) through a bolt (51).

5. A prefabricated cofferdam structure as set forth in claim 4, wherein: the base (2) is provided with a sinking groove (22) for plugging the blocking part (32), the sinking groove (22) is communicated with the through hole (21), the protective cap (5) is slidably installed in the sinking groove (22), the bottom wall of the sinking groove (22) is provided with a threaded hole (221), and the bolt (51) is in threaded connection with the inner wall of the threaded hole (221).

6. A prefabricated cofferdam structure as set forth in claim 5, wherein: the inner wall of the sinking groove (22) is provided with a guide strip (222), and the protective cap (5) is provided with a guide groove II (52) for the guide strip (222) to slide.

7. A prefabricated cofferdam structure as set forth in claim 1, wherein: a sealing groove (17) is formed in the side wall of the prefabricated unit (1), and a sealing strip (171) is embedded in the sealing groove (17).

8. A prefabricated cofferdam structure as set forth in claim 4, wherein: reinforcing grains (311) are formed on the anchoring portion (31) of each anchoring rod (3).