Underwater concrete pouring device for steel jacket box
By using magnet covers and hoisting components to control the gas volume in the conduit in the underwater concrete pouring device, the problem of easy concrete flushing caused by hollow cylindrical conduits is solved, and the flatness of the back cover concrete is improved.
Patent Information
- Application Number
- CN202421080580.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2024-12-31
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In water bridge projects, when the gap between the bottom plate of the steel case and the steel casing of the bearing is blocked, the hollow cylindrical conduit of the existing underwater concrete pouring device is longer, resulting in the concrete being easily washed by water and the flatness of the bottom seal concrete. Difference.
An underwater concrete pouring device including a hopper, a conduit, a funnel-shaped adsorption bucket, a magnet cover and a hoisting assembly is designed. Through the adsorption of the magnet cover and the driving of the hoisting assembly, the amount of gas in the conduit is controlled to reduce concrete and water. The contact space ensures that the concrete is not easily washed when poured into it.
It effectively improves the flatness of the back cover concrete, reduces the contact space between concrete and water, prevents concrete from being washed, and ensures the flatness and quality of concrete.
Smart Images
Figure CN222275499U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of underwater concrete pouring, and in particular relates to an underwater concrete pouring device for a steel casing. Background Art
[0002] In the construction of the pedestal of the underwater bridge project, steel box cofferdams are often used for construction. When sealing the gap between the steel box bottom plate and the steel casing of the pedestal, concrete is poured using the underwater concrete conduit method. Specifically, the hopper and the hollow cylindrical conduit are combined into a whole and lifted to the pouring position. Then the mixed concrete is poured into the conduit through the hopper and poured onto the bottom of the steel box to achieve underwater bottom sealing of concrete. However, the length of the hollow cylindrical conduit of this casting device is relatively long, which makes the contact space between the concrete and the water in the conduit large, and the concrete is easily washed by water, resulting in poor flatness of the bottom sealing concrete. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a steel casing underwater concrete pouring device to solve the problem that the length of the hollow cylindrical conduit of the existing pouring device is long, resulting in a large contact space between the concrete and the water in the conduit, and the concrete is easily washed by water, resulting in poor flatness of the bottom concrete.
[0004] The technical solution adopted by the utility model is as follows: an underwater concrete pouring device for a steel casing comprises a pouring mechanism, wherein the pouring mechanism comprises a hopper and a conduit;
[0005] The lower end of the hopper is connected to a suction hopper with a funnel-shaped structure, and the upper end of the conduit is connected to the lower end of the hopper through the suction hopper;
[0006] A blocking mechanism, the blocking mechanism comprising a cover body and a hanging assembly;
[0007] The cover body is a magnet cover, the shape of the cover body is adapted to the shape of the adsorption bucket, the cover body can be adsorbed in the adsorption bucket, the outer peripheral wall of the cover body can fit with the inner peripheral wall of the adsorption bucket, and a lifting assembly is connected to the top of the cover body, and the lifting assembly can drive the cover body to move vertically in the hopper.
[0008] Furthermore, a counterweight is fixedly connected to the bottom of the cover body, and the counterweight is in a cylindrical structure. The counterweight can be slidably sleeved in the conduit.
[0009] Furthermore, it also includes a first hook. A plurality of rings are arranged in a circumferential array on the outer wall of the hopper. First steel wire ropes are hung on the plurality of rings respectively. The upper ends of the plurality of first steel wire ropes are hung on the first hook.
[0010] Furthermore, guide spring ropes are respectively arranged on both sides of the top of the cover body relative to the two first steel ropes symmetrically arranged on the hopper, and the outer ends of the two guide spring ropes are slidably sleeved on the corresponding first steel ropes through slip rings.
[0011] Furthermore, it also includes a feeding mechanism, which includes a pump pipe, a concrete mixer and a pump truck, the discharge port of the concrete mixer is connected to the feed port of the pump truck, the pump truck is provided with a distribution boom, the pump pipe is arranged on the distribution boom, the discharge port of the pump truck is connected to the feed port of the pump pipe, and the discharge port of the pump pipe is located above the hopper and extends into the hopper.
[0012] Furthermore, it also includes a crane, which is used to lift the first hook. The lifting assembly includes an electric hoist, a second hook and a second wire rope. The electric hoist is arranged on the top of the crane's boom and is located directly above the hopper. The electric hoist is equipped with a second hook, and the lower end of the second hook is connected to the top of the cover body through the second wire rope.
[0013] Beneficial effects of the utility model:
[0014] First, the cover is adsorbed on the adsorption hopper to block the lower end of the hopper, so that the upper end of the conduit is in a sealed state. Then, the hopper and the conduit with the upper end in a sealed state are inserted into the water. When the conduit is inserted into the water, the volume of water entering the conduit is small due to the presence of a certain amount of gas in the conduit. Then, a preset amount of concrete is poured into the hopper, and the cover is driven to move upward by the hoisting assembly. The cover adsorbed on the adsorption hopper is pulled upward so that the upper end of the conduit is open, so that concrete is poured into the conduit, and a certain amount of concrete is poured through the conduit to the pouring position of the steel casing. Since there is only a small amount of water in the conduit, the contact space between the concrete and the water in the conduit is reduced, and the concrete is not easily washed by water, so that the concrete on the bottom of the steel casing has a higher flatness. After the concrete in the hopper is poured, the cover is lowered by the hoisting assembly until the cover moves down to a certain distance from the adsorption hopper. The cover is adsorbed on the adsorption hopper by the magnetic attraction of the cover, which is convenient for subsequent concrete pouring. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the local structure of the utility model (first viewing angle);
[0016] Figure 2 It is a partial structural schematic diagram of the utility model (second viewing angle);
[0017] Figure 3 It is a schematic diagram of the structure when the utility model is used;
[0018] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;
[0019] The attached drawings are marked as follows:
[0020] Casting mechanism 1, hopper 11, conduit 12, adsorption hopper 13, collar 14, blocking mechanism 2, cover 21, counterweight 22, guide spring rope 23, slip ring 24, electric hoist 25, second hook 26, second steel wire rope 27, feeding mechanism 3, pump pipe 31, concrete mixer 32, pump truck 33, placing boom 34, crane 4, first hook 41, first steel wire rope 42, roll-on / roll-off ship 5, steel casing 6. DETAILED DESCRIPTION
[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0022] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0024] Embodiment 1:
[0025] like Figure 1 to Figure 4 As shown, a steel casing underwater concrete pouring device comprises a pouring mechanism 1, wherein the pouring mechanism 1 comprises a hopper 11 and a conduit 12;
[0026] The lower end of the hopper 11 is connected to a suction hopper 13 with a funnel-shaped structure, and the upper end of the conduit 12 is connected to the lower end of the hopper 11 through the suction hopper 13;
[0027] A blocking mechanism 2, the blocking mechanism 2 comprising a cover body 21 and a hoisting assembly;
[0028] The cover body 21 is a magnetic cover, and the shape of the cover body 21 is adapted to the shape of the adsorption bucket 13. The cover body 21 can be adsorbed in the adsorption bucket 13, and the outer peripheral wall of the cover body 21 can fit with the inner peripheral wall of the adsorption bucket 13. A lifting assembly is connected to the top of the cover body 21, and the lifting assembly can drive the cover body 21 to move vertically in the hopper 11. In this embodiment, the adsorption hopper 13 is made of iron, and the hopper 11 is made of aluminum alloy, so that the cover body 21 of the magnet cover can be adsorbed on the adsorption hopper 13 made of iron, thereby blocking the lower end of the hopper 11, so that the upper end of the conduit 12 is in a sealed state, and then the conduit 12 with the sealed upper end is inserted into the water, so that when the conduit 12 is inserted into the water, due to the presence of a certain amount of gas in the conduit 12, the volume of water entering the conduit 12 is small, and then a preset amount of concrete is poured into the hopper 11, and then the cover body 21 adsorbed on the adsorption hopper 13 is pulled upward by the lifting assembly, so that the upper end of the conduit 12 is open, so that a certain amount of concrete is poured through the conduit 12 to the pouring position of the steel casing 6. Since there is only a small amount of water in the conduit 12, the contact space between the concrete and the water in the conduit 12 is reduced, and the concrete is not easily washed by water, so that the flatness of the bottom concrete of the steel casing 6 is higher.
[0029] As a preferred solution, a counterweight 22 is fixedly connected to the bottom of the cover 21, and the counterweight 22 is a cylindrical structure, and the counterweight 22 can be slidably sleeved in the conduit 12. In this embodiment, the counterweight 22 is made of copper material, and the weight of the cover 21 is increased by the counterweight 22, so that the cover 21 can fall downward between the hopper 11 and the conduit 12 better, and at the same time, the counterweight 22 is slidably sleeved in the conduit 12, which plays a role of limiting.
[0030] As a preferred solution, a first hook 41 is further included, and a plurality of rings 14 are arranged in a circumferential array on the outer peripheral wall of the hopper 11, and a first steel wire rope 42 is hung on the plurality of rings 14, respectively, and the upper ends of the plurality of first steel wire ropes 42 are all hung on the first hook 41. In this embodiment, four rings 14 are arranged in a circumferential array on the outer peripheral wall of the hopper 11, and the hopper 11 is lifted by the first hook 41 with the four arrayed first steel wire ropes 42, so that the stability of the lifting of the hopper 11 can be ensured.
[0031] As a preferred solution, the two sides of the top of the cover 21 are respectively provided with guide spring ropes 23 relative to the two first steel wire ropes 42 symmetrically arranged on the hopper 11, and the outer ends of the two guide spring ropes 23 are slidably sleeved on the corresponding first steel wire ropes 42 through the slip rings 24. Specifically, fixed rings are arranged on both sides of the top of the cover 21, and the inner ends of the two guide spring ropes 23 are movably sleeved on the corresponding fixed rings through the slip rings 24. Through the coordinated use of the symmetrically distributed guide spring ropes 23 and the slip rings 24 on the cover 21, the cover 21 is more stable when it moves vertically under the action of the hoisting assembly, and is not easy to shake in the air during the vertical movement.
[0032] As a preferred solution, a feeding mechanism 3 is also included, the feeding mechanism 3 includes a pump pipe 31, a concrete mixer 32 and a pump truck 33, the discharge port of the concrete mixer 32 is connected to the feed port of the pump truck 33 through a pipeline, the pump truck 33 is provided with a distribution rod 34, the pump pipe 31 is provided on the distribution rod 34, the discharge port of the pump truck 33 is connected to the feed port of the pump pipe 31, and the discharge port of the pump pipe 31 is located above the hopper 11 and extends into the hopper 11. The mixed and stirred concrete is input into the pump truck 33 through the concrete mixer 32, and the pump truck 33 pumps the concrete into the hopper 11 through the pump pipe 31 until the preset concrete is stored in the hopper 11. In this embodiment, the concrete mixer 32 is a JS750 type concrete forced mixer.
[0033] As a preferred solution, a crane 4 is further included, and the crane 4 is used to hoist the first hook 41. The crane is provided with a boom, and the hoisting assembly includes an electric hoist 25, a second hook 26, and a second steel wire rope 27. The electric hoist 25 is provided at the top of the boom of the crane 4 and is located directly above the hopper 11. The electric hoist 25 is hoisted with the second hook 26, and the lower end of the second hook 26 is connected to the top of the cover body 21 through the second steel wire rope 27. Through the coordinated use of the electric hoist 25, the second hook 26 and the second steel wire rope 27, the electric hoist 25 is convenient for winding up the second hook 26 and the second steel wire rope 27, and drives the cover body 21 to move vertically, so as to facilitate the cover body 21 to block and open the upper end of the conduit 12.
[0034] In this embodiment, the conduit 12 is made of seamless steel pipe with a diameter of 30cm, the wall thickness of the conduit 12 is not less than 3mm, and the length of the conduit 12 section is 3.0m. During the concrete pouring construction process, the height of the concrete surface is often detected, and the crane 4 lifts the conduit 12 in time according to the concrete pouring height. In the process of lifting the conduit 12, the lower part of the conduit 12 is always buried in the concrete for 4-6m, and the minimum burial depth shall not be less than 2m, so as to prevent the conduit 12 from protruding from the top surface of the concrete and affecting the quality of the concrete pouring. The conduit 12 and the hopper 11 are combined into a whole and lifted to the pouring position. In order to ensure the stability of the conduit 12, the conduit 12 is connected to the roll-on / roll-off ship 5 by a cable to prevent the conduit 12 from being displaced under the action of water flow. Before the external backfill concrete pouring of the steel casing 6, sacks of concrete are stacked every 5-8m as compartment partitions. After one compartment is poured to the designed elevation, the next adjacent compartment is poured. Steel plates are used as compartment partitions inside the steel casing 6, and the pouring method is the same as above. One to two conduits 12 are evenly distributed in each warehouse and are placed and positioned by a crane 4 on a roll-on / roll-off ship 5 .
[0035] like Figure 3 As shown, a 3000t ro-ro ship 5 is used as a concrete mixing platform, equipped with two JS750 concrete forced mixers, and the mixers are equipped with an automatic sand and gravel metering system; a cement sand and gravel material stacking site is arranged on the ro-ro ship 5. The crane 4 and the pump truck 33 are both set on the ro-ro ship 5. After the steel casing 6 is installed and verified, the divers use sack concrete to seal the bottom of the steel casing 6 underwater. The sack concrete is bagged manually on the ro-ro ship 5, and is slid underwater and stacked by divers. When stacking, the upper and lower layers should be staggered, and adjacent sacks should be stacked tightly without gaps.
[0036] Before pouring concrete, check the conduit 12. The inner diameter of the conduit 12 should be consistent, the inner wall should be smooth, and it should have sufficient sealing and firmness. The construction of concrete pouring should be carried out continuously without stopping. During the waiting time, the conduit 12 should be in an up and down movement state, and the appropriate buried depth of the conduit 12 should be maintained. During the concrete pouring process, the diver checks the steel casing 6 underwater. If any deformation is found, the pouring is stopped immediately, and reinforcement is carried out. After reinforcement, the concrete pouring can be continued.
[0037] The working mode of the utility model is as follows:
[0038] When in use, the cover 21 is first adsorbed on the adsorption hopper 13, thereby blocking the lower end of the hopper 11, so that the upper end of the conduit 12 is in a sealed state, and then the hopper 11 and the conduit 12 with the upper end in a sealed state are inserted into the water by the crane 4, so that when the conduit 12 is inserted into the water, the volume of water entering the conduit 12 is small due to the presence of a certain amount of gas in the conduit 12, and then the concrete is pumped into the hopper 11 through the pump pipe 31 by the pump truck 33 until the preset concrete is stored in the hopper 11, and then the electric hoist 25, the second hook 26 and the first With the coordinated use of the two steel wire ropes 27, the electric hoist 25 reels the second hook 26 and the second steel wire rope 27, and drives the cover 21 to move upward, and pulls the cover 21 adsorbed on the adsorption bucket 13 upward, so that the upper end of the conduit 12 is open, so that concrete is poured into the conduit 12, so that a certain amount of concrete is poured through the conduit 12 to the pouring position of the steel casing 6. Since there is only a small amount of water in the conduit 12, the contact space between the concrete and the water in the conduit 12 is reduced, and the concrete is not easily washed by water, so that the flatness of the bottom concrete of the steel casing 6 is higher;
[0039] After the concrete in the hopper 11 is poured, the cover 21 is lowered by the electric hoist 25 until the cover 21 moves down to a certain distance from the adsorption bucket 13, and the cover 21 is adsorbed on the adsorption bucket 13 by the magnetic attraction of the cover 21, which is convenient for subsequent concrete pouring.
[0040] The utility model is described in detail above. The description of the specific embodiments is only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
Claims
1. An underwater concrete pouring device for a steel casing, characterized in that: include A pouring mechanism (1), the pouring mechanism (1) comprising a hopper (11) and a conduit (12); The lower end of the hopper (11) is connected to a suction hopper (13) with a funnel-shaped structure, and the upper end of the conduit (12) is connected to the lower end of the hopper (11) through the suction hopper (13); A blocking mechanism (2), the blocking mechanism (2) comprising a cover body (21) and a hanging assembly; The cover body (21) is a magnetic cover. The shape of the cover body (21) is compatible with the shape of the adsorption bucket (13). The cover body (21) can be adsorbed in the adsorption bucket (13). The outer peripheral wall of the cover body (21) can fit with the inner peripheral wall of the adsorption bucket (13). The top of the cover body (21) is connected with a lifting assembly, and the lifting assembly can drive the cover body (21) to move vertically in the hopper (11).
2. The underwater concrete pouring device for steel casing according to claim 1, characterized in that: A counterweight (22) is fixedly connected to the bottom of the cover body (21); the counterweight (22) is a cylindrical structure, and the counterweight (22) can be slidably sleeved in the conduit (12).
3. The underwater concrete pouring device for steel casing according to claim 1, characterized in that: It also includes a first hook (41), and a plurality of rings (14) are arranged in a circumferential array on the outer peripheral wall of the hopper (11), and a first steel wire rope (42) is hung on each of the rings (14), and the upper ends of the plurality of the first steel wire ropes (42) are all hung on the first hook (41).
4. The underwater concrete pouring device for steel casing according to claim 3 is characterized in that: Guide spring ropes (23) are respectively arranged on both sides of the top of the cover body (21) relative to the two first steel ropes (42) symmetrically arranged on the hopper (11), and the outer ends of the two guide spring ropes (23) are slidably sleeved on the corresponding first steel ropes (42) through slip rings (24).
5. The underwater concrete pouring device for steel casing according to claim 1, characterized in that: The invention also comprises a feeding mechanism (3), wherein the feeding mechanism (3) comprises a pump pipe (31), a concrete mixer (32) and a pump truck (33); the discharge port of the concrete mixer (32) is communicated with the feed port of the pump truck (33); a distribution boom (34) is arranged on the pump truck (33); the pump pipe (31) is arranged on the distribution boom (34); the discharge port of the pump truck (33) is communicated with the feed port of the pump pipe (31); and the discharge port of the pump pipe (31) is located above the hopper (11) and extends into the hopper (11).
6. The underwater concrete pouring device for steel casing according to claim 1, characterized in that: It also includes a crane (4), the crane (4) is used to hoist the first hook (41), the hoisting assembly includes an electric hoist (25), a second hook (26) and a second steel wire rope (27), the electric hoist (25) is arranged at the top of the boom of the crane (4) and is located directly above the hopper (11), the electric hoist (25) is hoisted with the second hook (26), and the lower end of the second hook (26) is connected to the top of the cover body (21) through the second steel wire rope (27).