Device for sealing dewatering well in concrete raft

Abstract

The utility model provides a device for sealing a dewatering well in a concrete raft, and belongs to the technical field of underground dewatering construction. According to the technical scheme, the device comprises an embedded mechanism and a precipitation well steel well lid mechanism; the pre-embedded mechanism comprises a dewatering well steel casing, a reinforcing ring is arranged on the periphery of the dewatering well steel casing, a plurality of sets of connecting lug plates are evenly arranged on the periphery of the reinforcing ring, and bolts are arranged on the connecting lug plates; the dewatering well steel well lid mechanism comprises a well lid matched with the upper end of the dewatering well steel casing in a sealing mode, and a pressing plate used for pressing the well lid is arranged on the bolt. The steel well lid mechanism has the advantages that the structure is simple, the sealing effect is good, the steel well lid mechanism can be manufactured by manufacturers or on site, the steel well lid mechanism of the dewatering well is a finished product and can be tightened through bolts, installation is convenient, meanwhile, the waterproof effect is achieved, and the market popularization prospect is wide.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of underground water lowering construction technology field, especially a kind of device in concrete raft slab closed dewatering well. BACKGROUND

[0002] With the vigorous development of the economy of each country, the infrastructure scale is very huge, to meet the functional needs, infrastructure foundation is located above groundwater level, and dewatering operation needs to be used when foundation is constructed, and dewatering well pipe well plugging after dewatering completion becomes a difficulty of waterproof closure;Dewatering well is not tightly closed, which can cause groundwater to infiltrate into the foundation, reduce the durability of the engineering foundation, thereby affecting the normal use of building (structure), therefore, the present application provides a kind of device in concrete raft slab closed dewatering well. UTILITY MODEL CONTENT

[0003] The utility model aims at providing a kind of device in concrete raft slab closed dewatering well, which can guarantee the effect of closed dewatering well, achieve the safety of building (structure) within the design service life, and reduce the difficulty of closed dewatering well.

[0004] The utility model is realized by the following measures:

[0005] A kind of device in concrete raft slab closed dewatering well, characterized by including pre-buried mechanism and dewatering well steel well lid mechanism;

[0006] The pre-buried mechanism includes dewatering well steel casing, the dewatering well steel casing is provided with reinforcing ring periphery, the reinforcing ring is uniformly provided with several groups of connecting ear plate periphery, the connecting ear plate is welded on the reinforcing ring, and bolt is provided on the connecting ear plate;

[0007] The dewatering well steel well lid mechanism includes well lid in sealing cooperation with the upper end of the dewatering well steel casing, and the bolt is provided with pressing plate for pressing the well lid.

[0008] The utility model has the following specific features:

[0009] The well lid includes circular bottom plate and annular side wall provided on the circular bottom plate, the end face of the annular side wall is provided with annular groove matched with the dewatering well steel casing, and the upper end of the dewatering well steel casing is arranged in the annular groove.

[0010] Expansion waterstop is arranged in the annular groove, the expansion waterstop is annular structure and is arranged between the upper end of dewatering well steel casing and the bottom surface in the annular groove, when groundwater infiltrates, the expansion waterstop expands, and water blocking effect is achieved.

[0011] The lower end of the bolt is rotationally arranged on the connecting ear plate;

[0012] The pressing plate is provided with a clamping groove matched with the outer diameter of the bolt, and the outer periphery of the bolt is provided with a matched nut to press the pressing plate after the pressing plate is pressed on the well lid and the clamping groove is clamped on the outer periphery of the bolt.

[0013] The outer periphery of the reinforcing ring below the connecting lug plate is provided with a steel plate water stop ring.

[0014] A limiting mechanism matched with the pressing plate is further provided.

[0015] The limiting mechanism comprises an intermediate plate, and a plurality of groups of limiting plates matched with the pressing plate are uniformly arranged on the outer periphery of the intermediate plate.

[0016] The outer periphery of the intermediate plate is uniformly provided with four groups of long rods, and the free ends of the long rods are provided with arc-shaped plates matched with the outer side of the annular side wall.

[0017] A handle is arranged on the intermediate plate, and the operation of the limiting mechanism is realized through the handle.

[0018] The diameter of the steel casing of the dewatering well can be determined according to the dewatering requirement and the appearance size of the water pump; the reinforcing ring is arranged to prevent the connecting lug plate from being welded directly on the steel casing of the dewatering well, so as to prevent the damage of the casing wall and affect the sealing effect of the dewatering well; the reinforcing ring and the steel casing of the dewatering well are welded by using intermittent fillet welding at the upper and lower openings, and full welding is not required; the connecting lug plate and the reinforcing ring are full welded by using fillet welding.

[0019] The device can be manufactured by a manufacturer or on site; before the construction of the concrete cushion layer, the pre-buried mechanism is pre-buried in the cushion layer, and then waterproof and waterproof protective layer construction is carried out; after the bottom layer steel bar of the raft steel bar is bound, the space for the operator to enter the dewatering well is reserved near the dewatering well during the binding of the surface layer steel bar of the raft; the dewatering pump is taken out several hours before pouring the raft concrete around the dewatering well, the dewatering well is filled with quick-setting concrete; the dewatering well cover mechanism is installed, and then the raft concrete around the dewatering well is poured.

[0020] The device has the advantages of simple structure, good sealing effect, convenient installation, waterproof effect, and wide market prospect. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the whole structure schematic view of the embodiment 1 of the utility model.

[0022] Figure 2 It is the structure schematic view of partial section of the embodiment 1 of the utility model.

[0023] Figure 3 It is the structure schematic view of the limiting mechanism in the embodiment 2 of the utility model.

[0024] Figure 4 It is the structure schematic view when the limiting mechanism in the embodiment 2 of the utility model is applied.

[0025] Wherein, the reference sign is: 1, the precipitation well steel casing; 2, steel plate water stop ring; 3, reinforcing ring; 4, connecting lug plate; 5, bolt; 6, nut; 7, pressing plate; 8, well lid; 9, expansion water stop strip; 10, middle plate; 11, long rod; 12, arc plate; 13, limiting plate; 14, limiting groove; 15, handle. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0027] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0028] In the description of the utility model, it is to explain, unless otherwise definite and limited, the term "installation", "link", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication。For ordinary skilled in the art, the above-mentioned terms can be understood by the specific meaning in the utility model through specific circumstances.

[0029] In order to clearly illustrate the technical features of the scheme, the scheme is described below through specific embodiments.

[0030] Embodiment 1

[0031] Referring to Figures 1-2 A device for closing a dewatering well in a concrete raft, comprising a pre-buried mechanism and a dewatering well steel well cover mechanism;

[0032] The pre-buried mechanism comprises a dewatering well steel casing 1, a reinforcing ring 3 is arranged on the periphery of the dewatering well steel casing 1, a plurality of groups of connecting ear plates 4 are uniformly arranged on the periphery of the reinforcing ring 3, the connecting ear plates 4 are welded on the reinforcing ring 3, and bolts 5 are arranged on the connecting ear plates 4.

[0033] The dewatering well steel well cover mechanism comprises a well cover 8 in sealing cooperation with the upper end of the dewatering well steel casing 1, and a pressing plate 7 for pressing the well cover 8 is arranged on the bolt 5.

[0034] The well cover 8 comprises a circular bottom plate and an annular side wall arranged on the circular bottom plate, an annular groove matched with the dewatering well steel casing 1 is arranged on the end face of the annular side wall, and the upper end of the dewatering well steel casing 1 is arranged in the annular groove.

[0035] An expansion waterstop 9 is arranged in the annular groove, the expansion waterstop 9 is in annular structure and is arranged between the upper end of the dewatering well steel casing 1 and the bottom surface in the annular groove, when underground water seeps in, the expansion waterstop 9 expands when encountering water, and the water blocking effect is achieved.

[0036] The lower end of the bolt 5 is rotatably arranged on the connecting ear plate 4;

[0037] A clamping groove matched with the outer diameter of the bolt 5 is arranged on the pressing plate 7, the pressing plate 7 is pressed on the well cover 8, the clamping groove is clamped on the periphery of the bolt 5, and the periphery of the bolt 5 is provided with a matched nut 6 for pressing the pressing plate 7.

[0038] A steel plate waterstop ring 2 is arranged on the periphery of the reinforcing ring 3 below the connecting ear plate 4.

[0039] The diameter of the dewatering well steel casing 1 can be determined according to the dewatering requirement and the appearance size of the water pump; the reinforcing ring 3 is arranged to prevent the connecting ear plate 4 from being welded directly on the dewatering well steel casing 1, so as to avoid damaging the casing wall and affecting the sealing effect of the dewatering well; the reinforcing ring 3 is welded with the dewatering well steel casing 1 by using intermittent fillet welding of upper and lower openings, and full welding is not required; the connecting ear plate 4 is full-welded with the reinforcing ring 3 by using fillet welding;

[0040] The device is made by a manufacturer or on site; before the concrete cushion construction, the pre-buried mechanism is pre-buried in the cushion, and then waterproof and waterproof protection layer construction is carried out; after the bottom layer of raft reinforcement is bound, the space for the operator to enter the raft to seal the dewatering well is reserved near the dewatering well during the time of binding the surface layer of raft reinforcement; the dewatering pump is taken out several hours before pouring the raft concrete around the dewatering well, the dewatering well is filled with quick-setting concrete; the dewatering well cover mechanism is installed, and then the raft concrete around the dewatering well is poured.

[0041] Embodiment 2

[0042] Referring to Figures 3-4 On the basis of embodiment 1, a limiting mechanism for cooperating with the pressing plate 7 is further arranged.

[0043] The limiting mechanism comprises a middle plate 10, a plurality of groups of limiting plates 13 for cooperating with the pressing plate 7 are uniformly arranged on the periphery of the middle plate 10, the free end of the limiting plate 13 is provided with a limiting groove 14 for cooperating with the pressing plate 7, and the pressing plate 7 is arranged in the limiting groove 14.

[0044] Four groups of long rods 11 are uniformly arranged on the periphery of the middle plate 10, the free end of the long rod 11 is provided with an arc-shaped plate 12 abutting the outer side of the annular side wall, in use, the limiting mechanism is clamped on the periphery of the well cover 8 through the arc-shaped plate 12, then the limiting mechanism is rotated to align the limiting groove 14 with the corresponding bolt 5, then the pressing plate 7 is installed and clamped in the limiting groove 14, and finally the corresponding nut 6 is locked, so that the pressing plate 7 cannot rotate and deviate during locking of the nut 6, and the fixing effect is more standardized and firm.

[0045] A handle 15 is arranged on the middle plate 10, and the handle 15 is used for operation of the limiting mechanism.

[0046] The technical features not described in the utility model can be realized by or using the prior art, which will not be repeated here. Of course, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples. Changes, modifications, additions or replacements made by ordinary skilled persons in the technical field within the essential scope of the utility model should also be within the protection scope of the utility model.

Claims

1. An apparatus for closing a dewatering well in a concrete raft, characterised in that, The utility model provides a pre-embedded mechanism and a precipitation well steel well lid mechanism; The pre-embedded mechanism comprises a precipitation well steel casing (1), the precipitation well steel casing (1) is provided with a reinforcing ring (3) periphery, a plurality of groups of connecting ear plates (4) are uniformly arranged on the periphery of the reinforcing ring (3), and bolts (5) are arranged on the connecting ear plates (4); The precipitation well steel well lid mechanism comprises a well lid (8) in sealing cooperation with the upper end of the precipitation well steel casing (1), and a pressing plate (7) for pressing the well lid (8) is arranged on the bolt (5).

2. A device for closing a dewatering well in a concrete raft according to claim 1, characterized in that The well lid (8) comprises a circular bottom plate and an annular side wall arranged on the circular bottom plate, an annular groove in cooperation with the precipitation well steel casing (1) is arranged on the end face of the annular side wall, and the upper end of the precipitation well steel casing (1) is arranged in the annular groove.

3. A device for closing a dewatering well in a concrete raft according to claim 2, characterised in that, An expansion water stop strip (9) is arranged in the annular groove.

4. A device for closing a dewatering well in a concrete raft according to claim 3, characterized in that The lower end of the bolt (5) is rotationally arranged on the connecting ear plate (4); A clamping groove matched with the outer diameter of the bolt (5) is arranged on the pressing plate (7), the pressing plate (7) is pressed on the well lid (8), the clamping groove is clamped on the periphery of the bolt (5), and then a matched nut (6) is arranged on the periphery of the bolt (5) to press the pressing plate (7).

5. A device for closing a dewatering well in a concrete raft according to claim 4, characterized in that A steel plate water stop ring (2) is arranged on the periphery of the reinforcing ring (3) below the connecting ear plate (4).

6. A device for closing a dewatering well in a concrete raft according to claim 5, characterised in that, A limiting mechanism matched with the pressing plate (7) is further arranged; The limiting mechanism comprises an intermediate plate (10), a plurality of groups of limiting plates (13) matched with the pressing plate (7) are uniformly arranged on the periphery of the intermediate plate (10), limiting grooves (14) matched with the pressing plate (7) are arranged on the free ends of the limiting plates (13), and the pressing plate (7) is arranged in the limiting grooves (14).

7. A device for closing a dewatering well in a concrete raft according to claim 6, characterized in that Four groups of long rods (11) are uniformly arranged on the periphery of the intermediate plate (10), and arc-shaped plates (12) matched with the outer side of the annular side wall are arranged on the free ends of the long rods (11).

8. A device for closing a dewatering well in a concrete raft according to claim 7, characterized in that A handle (15) is arranged on the intermediate plate (10).

Images