CN209923955U

CN209923955U - Combined cofferdam

Info

Publication number: CN209923955U
Application number: CN201920380636.1U
Authority: CN
Inventors: 张新; 康毅; 李敬海; 张岩; 刘德贤; 韩坤雨
Original assignee: Beijing Chaoyang Water Conservancy Engineering Co Ltd
Current assignee: Beijing Chaoyang Water Conservancy Engineering Co Ltd
Priority date: 2019-03-23
Filing date: 2019-03-23
Publication date: 2020-01-10
Anticipated expiration: 2029-03-23

Abstract

The utility model relates to a modular cofferdam, including a plurality of cofferdam templates and the bracing piece of fixed cofferdam template that interconnects in proper order, one side that the cofferdam template back of the body left the water adds and is equipped with the breakwater, inside the riverbed was inserted in the breakwater slope, and the lower tip of cofferdam template contacted with the breakwater. The utility model discloses have the effect that reduces the inside infiltration of cofferdam.

Description

Combined cofferdam

Technical Field

The utility model belongs to the technical field of the technique of river course construction and specifically relates to a modular cofferdam is related to.

Background

With the development of national economy, the infrastructure is gradually followed up, and the river channel which is closely related to people in life is continuously transformed, wherein the river channel transformation is the work of comprehensively governing the river channel, and the river bed restoration is an important link in the river channel.

When repairing the riverbed, need block the river course earlier, carry out the cofferdam with needs prosthetic place, then restore the riverbed, under the circumstances usually, directly insert the cofferdam template on the riverbed of the position that will be under construction, reuse bracing piece with the cofferdam template fixed can, this kind of cofferdam mode, construction cost is low and be applicable to the transformation to the river course in the city.

By adopting the cofferdam mode, although river water can be blocked outside the cofferdam, a large amount of seepage water can enter the cofferdam due to the shallow depth of the cofferdam template inserted into the riverbed, and great trouble is caused to the construction of workers.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a modular cofferdam, it has the effect that reduces the inside infiltration of cofferdam.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a modular cofferdam, includes a plurality of cofferdam templates and the bracing piece of fixed cofferdam template that interconnects in proper order, one side that the cofferdam template back of the body leaves water adds and is equipped with the breakwater, inside the breakwater slope inserted the riverbed, and the lower tip of cofferdam template contacts with the breakwater.

Through adopting above-mentioned technical scheme, polylith cofferdam template inserts the riverbed, and interconnect gets up the local enclosure that needs the construction in proper order, then the bracing piece is fixed with the cofferdam template, make the stable fixing of cofferdam template on the riverbed, then discharge the water in the enclosure completely, the staff places the breakwater in one side that the cofferdam template deviates from the riverbed earlier, and the distance between the two is the length that the riverbed was inserted to the cofferdam template, then inside inserting the riverbed with the breakwater with the slope of 45 degrees with the riverbed contained angle, the lower extreme that has guaranteed the cofferdam template contacts with the breakwater, until the degree that the upper end of breakwater and the perpendicular distance of riverbed were gone out and go in the riverbed to the cofferdam template. Through adding and establishing the breakwater, increased the vertical degree of depth of cofferdam, reduced the river infiltration riverbed and entered into the apron inside.

The utility model discloses further set up to: the two side ends of the water baffles are respectively integrally formed with a groove and a sliding strip, and the two adjacent water baffles are mutually matched and connected together through the grooves and the sliding strips.

Through adopting above-mentioned technical scheme, when first breakwater has been installed and need continue to install second breakwater, make the recess of second breakwater just to the slip strip of first breakwater earlier, then slope 45 degrees inserts in the riverbed downwards, until second breakwater and first breakwater are in same height, cooperation through slip strip and recess, make the breakwater between adjacent superpose each other, the clearance between two adjacent breakwaters has been reduced, and then within having reduced the river infiltration to the enclosure.

The utility model discloses further set up to: the utility model discloses a river bed, including breakwater and cofferdam baffle, the one end that the rubber buffer deviates from the clearance adds and is equipped with the fixed plate, the fixed plate deviates from and adds on the terminal surface of rubber buffer and is equipped with the telescopic link, the one end and the bracing piece fixed connection of fixed plate are kept away from to the connecting rod.

Through adopting above-mentioned technical scheme, when sealed breakwater and cofferdam template, place the fixed plate between breakwater and cofferdam template earlier, then the rubber buffer just also is located between breakwater and the cofferdam template, then is connected the both ends of telescopic link with fixed plate and bracing piece respectively, the extension telescopic link, and then the fixed plate will move down, and then drive the rubber buffer and move down, until the rubber buffer blocks completely between breakwater and cofferdam baffle. When river water seeps from the contact part of the cofferdam template and the water baffle and enters between the cofferdam baffle and the water baffle positioned above the river bed, the sealing assembly prevents the river water from extending above the river bed, thereby reducing the river water from permeating into the enclosure.

The utility model discloses further set up to: the rubber stopper is a hollow rubber stopper made of elastic rubber materials.

Through adopting above-mentioned technical scheme, guaranteed the elasticity of rubber buffer, made better sealed breakwater and cofferdam template of rubber buffer.

The utility model discloses further set up to: the telescopic rod comprises a sleeve connected with the fixed plate, a threaded rod connected with the supporting rod and penetrating into the sleeve, and a nut.

Through adopting above-mentioned technical scheme, when the telescopic link is extended to needs, rotatory to being close to telescopic direction with the bolt until meeting the staff's demand, when needs shorten the telescopic link, rotatory to keeping away from telescopic direction with the bolt until meeting the staff's demand.

The utility model discloses further set up to: the sleeve is hinged with the fixed plate through a ball, and the threaded rod is hinged with the supporting rod through a chain.

Through adopting above-mentioned technical scheme, connect through setting up to the hinge, guarantee the tight fixed plate in top that the telescopic link can be better, prevent because the fixed plate position changes, the telescopic link can not exert an balanced power to the dead lever, leads to the sealing plug can not seal up breakwater and cofferdam template completely.

The utility model discloses further set up to: the one end that the sleeve is close to the threaded rod has seted up the semi-cylindrical dodge gate, and the one end and the sleeve of semi-cylindrical dodge gate are articulated, and the other end and the sleeve bolted connection of semi-cylindrical dodge gate.

Through adopting above-mentioned technical scheme, when the telescopic link is installed to needs, it articulates on the fixed plate with the sleeve ball earlier, then articulate the screw rod chain on the bracing piece, then open the dodge gate, the bolt is unloaded to the pine, then to keeping away from telescopic direction rotation dodge gate, until meeting staff's needs, then put into the sleeve with the threaded rod, to being close to telescopic direction rotation dodge gate, until dodge gate and sleeve complete contact, screw up the bolt can, through adding establish the dodge gate and made things convenient for the staff to dismantle the installation telescopic link.

The utility model discloses further set up to: one end of the water baffle inserted into the riverbed is in a triangular blade shape.

Through adopting above-mentioned technical scheme, make the staff more easily insert the breakwater into the riverbed.

The utility model discloses further set up to: the two end surfaces of the water baffle, which are in contact with the river bed, are smooth surfaces.

Through adopting above-mentioned technical scheme, reduce the frictional force when the breakwater inserts the riverbed, make the staff insert the breakwater in the riverbed more easily.

To sum up, the utility model discloses a beneficial technological effect does:

1. the water baffle is additionally arranged below the cofferdam template, so that the water seepage inside the cofferdam is reduced;

2. by additionally arranging the rubber plug, river water is prevented from entering the inner part of the cofferdam from the space between the water baffle and the cofferdam template;

3. through add on the breakwater and establish recess and slip strip, make the breakwater between adjacent superpose each other, reduced the clearance between two adjacent breakwaters, and then reduced the river and permeated within the enclosure.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the middle sealing assembly of the present invention.

Fig. 3 is a schematic structural view of the middle water deflector of the present invention.

Fig. 4 is an illustration of the explosion structure of two adjacent water baffles of the present invention.

In the figure, 1, a cofferdam template; 2. a support bar; 3. a water baffle; 4. a seal assembly; 5. a rubber plug; 6. a fixing plate; 7. a telescopic rod; 8. a sleeve; 9. a threaded rod; 10. a nut; 11. a movable door; 12. a groove; 13. a slide bar; 14. a riverbed.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): as shown in fig. 1, for the utility model discloses a combined cofferdam, including cofferdam template 1, bracing piece 2 and breakwater 3, polylith cofferdam template 1 inserts riverbed 14, and interconnect gets up the local enclosure that needs the construction in proper order, then bracing piece 2 is fixed with cofferdam template 1, make the stable fixing of cofferdam template 1 on riverbed 14, then discharge the water in the enclosure completely, the staff places breakwater 3 in one side that deviates from the river at cofferdam template 1 earlier, then insert riverbed 14 inside with breakwater 3 slope, and guarantee that the lower extreme of cofferdam template 1 contacts with breakwater 3, the upper end of up to breakwater 3 and riverbed 14's vertical distance insert half of riverbed 14 degree of depth for cofferdam template 1. By additionally arranging the water baffles 3, the longitudinal depth of the cofferdam is increased, and the river water is reduced from permeating into the riverbed 14 and entering the inside of the enclosure.

Add between breakwater 3 and the cofferdam template 1 that is located river bed 14 and establish sealing component 4, sealing component 4 includes rubber buffer 5, with rubber buffer 5 fixed connection's fixed plate 6 and 6 ball-hinged other ends of one end fixed plate and 2 chain-hinged telescopic links 7 of bracing piece, rubber buffer 5 is the hollow rubber buffer 5 that elastic rubber material made. When sealed breakwater 3 and cofferdam template 1, place fixed plate 6 between breakwater 3 and cofferdam template 1 earlier, then rubber buffer 5 just also is located between breakwater 3 and the cofferdam template 1, then is connected the both ends of telescopic link 7 with fixed plate 6 and bracing piece 2 respectively, extension telescopic link 7, and then fixed plate 6 will move down, and then drive rubber buffer 5 and move down, until rubber buffer 5 blocks completely between breakwater 3 and cofferdam baffle. When river water seeps from the contact part of the cofferdam template 1 and the water baffles 3 and enters between the cofferdam baffle and the water baffles 3 positioned above the river bed 14, the sealing assembly 4 prevents the river water from extending above the river bed 14, thereby reducing the river water from permeating into the enclosure.

As shown in fig. 2, the telescopic rod 7 comprises a sleeve 8, a threaded rod 9 and a nut 10, one end of the sleeve 8 is in ball hinge with the fixing plate 6, one end of the threaded rod 9 close to the sleeve 8 penetrates into the sleeve 8, the other end of the threaded rod 9 is in chain hinge with the support rod 2, and the nut 10 is additionally arranged at the joint of the sleeve 8 and the threaded rod 9. When the telescopic link 7 needs to be extended, the bolt is rotated towards the direction close to the sleeve 8 until the requirement of a worker is met, and when the telescopic link 7 needs to be shortened, the bolt is rotated towards the direction far away from the sleeve 8 until the requirement of the worker is met.

One end of the sleeve 8 close to the threaded rod 9 is provided with a semi-cylindrical movable door 11, one end of the semi-cylindrical movable door 11 is hinged with the sleeve 8, and the other end of the semi-cylindrical movable door is connected with the sleeve 8 through a bolt. When telescopic link 7 is installed to needs, earlier with 8 ball joints of sleeve on fixed plate 6, then articulate threaded rod 9 chain on bracing piece 2, then open dodge gate 11, the bolt is unloaded to the pine, then to the rotatory dodge gate 11 of the direction of keeping away from sleeve 8, until meeting staff's needs, then put into sleeve 8 with threaded rod 9 in, to the rotatory dodge gate 11 of the direction that is close to sleeve 8, until dodge gate 11 and sleeve 8 complete contact, the screw up the bolt can, through adding to establish dodge gate 11 and made things convenient for the staff to dismantle installation telescopic link 7.

As shown in fig. 3 and 4, the two side ends of the water baffle 3 are respectively integrally formed with a groove 12 and a sliding strip 13, and two adjacent water baffles 3 are connected together by the mutual fit of the groove 12 and the sliding strip 13. When the first water baffle 3 is installed and the second water baffle 3 needs to be continuously installed, the sliding strip 13 of the second water baffle 3 is right aligned to the groove 12 of the first water baffle 3, then the second water baffle 3 is inclined for 45 degrees and is downwards inserted into the riverbed 14 until the second water baffle 3 and the first water baffle 3 are at the same height, the water baffles 3 between adjacent parts are mutually overlapped through the matching of the sliding strip 13 and the groove 12, the gap between the two adjacent water baffles 3 is reduced, and then the river water is reduced to permeate into the enclosure.

As shown in fig. 1, the water guard 3 is formed in a triangular blade shape at an end inserted into the river bed 14, so that it is easier for a worker to insert the water guard 3 into the river bed 14.

The two end surfaces of the water baffle 3, which are contacted with the river bed 14, are smooth surfaces, so that the friction force generated when the water baffle 3 is inserted into the river bed 14 is reduced, and the water baffle 3 can be more easily inserted into the river bed 14 by workers.

The implementation principle of the embodiment is as follows: a plurality of cofferdam templates 1 are inserted into a river bed 14 and are sequentially connected with each other to enclose a place to be constructed, then the cofferdam templates 1 are fixed by support rods 2, so that the cofferdam templates 1 are stably fixed on the river bed 14, then water in the enclosure is completely discharged, a worker firstly places a water baffle 3 at one side of the cofferdam templates 1, which is far away from the river, and the distance between the water baffle and the cofferdam templates is the length of the cofferdam templates 1 inserted into the river bed 14, then inserts the water baffle 3 into the river bed 14 in an inclined manner of 45 degrees of included angle with the river bed 14, ensures that the lower end of the cofferdam templates 1 is in contact with the water baffle 3 until the vertical distance between the upper end of the water baffle 3 and the river bed 14 is the degree of the cofferdam templates 1 entering and exiting from the river bed 14, then places a fixed plate 6 between the water baffle 3 and the cofferdam templates 1, then places the rubber plug 5 between the water baffle 3 and the cofferdam templates 1, and then, the telescopic rod 7 is extended, and then the fixing plate 6 moves downwards, and then the rubber plug 5 is driven to move downwards until the rubber plug 5 is completely clamped between the water baffle 3 and the cofferdam baffle.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a combined cofferdam, includes a plurality of cofferdam template (1) and the bracing piece (2) of fixed cofferdam template (1) that interconnect in proper order, its characterized in that, one side that cofferdam template (1) back of the body leaves water adds and is equipped with breakwater (3), inside breakwater (3) slope inserted riverbed (14), and the lower tip of cofferdam template (1) contacted with breakwater (3).

2. The combined cofferdam of claim 1, wherein both side ends of the water baffles (3) are respectively and integrally formed with a groove (12) and a sliding strip (13), and two adjacent water baffles (3) are connected together by the mutual fit of the groove (12) and the sliding strip (13).

3. The combined cofferdam of claim 1, wherein a rubber plug (5) is additionally arranged at a gap between the water baffle (3) and the cofferdam baffle above the riverbed (14), a fixing plate (6) is additionally arranged at one end of the rubber plug (5) deviating from the gap, an expansion link (7) is additionally arranged on the end surface of the fixing plate (6) deviating from the rubber plug (5), and one end of the expansion link (7) far away from the fixing plate (6) is fixedly connected with the support rod (2).

4. A combined cofferdam according to claim 3, characterized in that said rubber stopper (5) is a hollow rubber stopper (5) made of elastic rubber material.

5. Combined cofferdam according to claim 3, characterized in that said telescopic rod (7) comprises a sleeve (8) connected to the fixed plate (6), a threaded rod (9) and a nut (10) connected to the support rod (2) and penetrating into the sleeve (8).

6. Combined cofferdam according to claim 5, characterized in that said sleeves (8) are ball-hinged with the fixed plate (6) and said threaded rods (9) are chain-hinged with the supporting rods (2).

7. The combined cofferdam of claim 5, wherein a semi-cylindrical movable door (11) is opened at one end of the sleeve (8) near the threaded rod (9), one end of the semi-cylindrical movable door (11) is hinged with the sleeve (8), and the other end of the semi-cylindrical movable door (11) is connected with the sleeve (8) by a bolt.

8. A modular cofferdam according to claim 1, characterized in that the end of the breakwater (3) inserted into the riverbed (14) is arranged in the shape of a triangular blade.

9. The combined cofferdam of claim 1, characterized in that both end faces of the breakwaters (3) in contact with the river bed (14) are smooth.