CN220057902U - Positioning protection device for underground diaphragm wall embedded bar connector - Google Patents

Abstract

The utility model discloses a positioning protection device of an underground diaphragm wall embedded bar connector, which comprises: the locator is arranged on the outer side of the embedded bar connector and used for locating the embedded bar connector; the positioning bottom plate is welded with the transverse ribs of the underground continuous wall, the embedded steel bar connector and the positioner are arranged on the positioning bottom plate, and the anchor ribs of the underground continuous wall penetrate through the positioning bottom plate and are connected with the embedded steel bar connector; the steel side plates are arranged on two sides of the positioner and are used for protecting the positioner; the steel sealing cover is arranged at the tops of the embedded bar connector, the locator and the steel side plate; the bottom of the steel side plate is connected with the positioning bottom plate, and the top of the steel side plate is connected with the steel sealing cover. The steel cover is reserved with a first bolt hole, and the first bolt penetrates through the first bolt hole on the steel cover to be in threaded connection with the embedded bar connector. The problems that wire teeth of the embedded bar connector are damaged by chiseling, rusted, uneven in positioning and deflection in the construction process are solved.

Description

Positioning protection device for underground diaphragm wall embedded bar connector

Technical Field

The utility model belongs to the field of building construction, and relates to a positioning protection device of an underground diaphragm wall embedded bar connector.

Background

At present, an underground continuous wall is generally adopted as an underground station deep foundation pit support structure, in order to ensure that each floor of building board is reliably connected with the underground continuous wall in the construction process of the underground station, the scheme is adopted that a pre-buried steel bar connector in the underground continuous wall is used for realizing the connection between the underground continuous wall and a station main body structure, and the load of the main body structure of the station is transmitted to a bearing layer through the steel bar connector on the underground continuous wall, so that the tasks of transmitting the ground construction load, the self weight of a floor slab and a beam column node are borne.

In the actual construction process, the problems that the positioning height of the common embedded bar connectors is uneven, the wire teeth of the embedded bar connectors are damaged by chiseling and rusting are solved, and the embedded bar connectors cannot be used due to the problems, so that the main body structure of the underground station cannot transmit load to the underground continuous wall, and the conditions of cracks, leakage and the like of the main body structure of the station can be caused, so that the service life of the underground station is influenced. At present, a construction party often uses a method for planting bars to solve the problem that a main body structure of an underground station cannot transmit load to an underground continuous wall because an embedded bar connector cannot be used due to damage, but the method for planting the bars increases construction cost.

Disclosure of Invention

The embodiment of the utility model aims to provide a positioning protection device for an underground diaphragm wall embedded bar connector, which aims to solve the problem that the embedded bar connector cannot be used due to uneven positioning, deflection and corrosion of wire teeth of the embedded bar connector in the construction process.

The technical scheme adopted by the embodiment of the utility model is as follows: positioning protection device of underground diaphragm wall embedded bar connector includes:

the locator is arranged on the outer side of the embedded bar connector and used for locating the embedded bar connector;

the positioning bottom plate is welded with the transverse ribs of the underground continuous wall, the embedded steel bar connector and the positioner are arranged on the positioning bottom plate, and the anchor ribs of the underground continuous wall penetrate through the positioning bottom plate and are connected with the embedded steel bar connector;

the steel side plates are arranged on two sides of the positioner and are used for protecting the positioner;

the steel sealing cover is arranged at the tops of the embedded bar connector, the locator and the steel side plate;

the bottom of the steel side plate is connected with the positioning bottom plate, and the top of the steel side plate is connected with the steel sealing cover.

Further, a first steel side plate limiting groove, an underground continuous wall anchor bar hole, a first connector limiting hole and a first locator limiting groove are reserved on the positioning bottom plate;

the steel sealing cover is reserved with a first bolt hole, a second steel side plate limit groove, a second positioner limit groove and a second connector limit hole;

the bottom of the embedded bar connector is arranged in the corresponding first connector limiting hole, and the top of the embedded bar connector is arranged in the corresponding second connector limiting hole;

the bottom of the steel side plate is arranged in the first steel side plate limiting groove, and the top of the steel side plate is arranged in the second steel side plate limiting groove;

the bottom of the locator is arranged in the corresponding first locator limiting groove, and the top of the locator is arranged in the corresponding second locator limiting groove;

the underground continuous wall anchor bars penetrate through the underground continuous wall anchor bar holes and are connected with the embedded bar connectors in the corresponding first connector limiting holes;

the first bolt passes through a first bolt hole on the steel sealing cover and is in threaded connection with the embedded bar connector, and the embedded bar connector, the positioning bottom plate, the steel side plate, the positioner and the steel sealing cover are connected into a whole.

Further, a plurality of embedded bar connectors are arranged on the positioning bottom plate;

the steel side plates are arranged on two sides of the positioners;

the steel sealing cover is arranged at the tops of the locators and the embedded bar connector;

the steel sealing cover is provided with a plurality of first bolt holes, and the first bolts are connected with the embedded bar connectors in a one-to-one correspondence manner through the corresponding first bolt holes.

Further, the center positions of the screw cap and the screw rod of the first bolt are hollow structures;

a positioner is arranged in the hollow structures of the screw cap and the screw rod;

the first bolt hole consists of a first screw hole and a nut hole, and a detachable bolt protection cover is arranged at the orifice of the nut hole;

the diameter of the underground diaphragm wall anchor bar hole is the same as that of the underground diaphragm wall anchor bar, and the circle center of the limit hole of the first connector coincides with that of the underground diaphragm wall anchor bar hole;

the second steel side plate limit groove, the second locator limit groove and the second connector limit hole are all positioned at the inner side of the steel sealing cover, and the nut hole is positioned at the outer side of the steel sealing cover;

the second connector limiting hole is communicated with the nut hole through the first screw hole, and the circle center of the first screw hole and the circle center of the nut hole are coincident with the circle center of the second connector limiting hole.

Further, each embedded bar connector is surrounded by two detachably connected positioners in a matched manner;

and the positioners of two adjacent embedded bar connectors on the positioning bottom plate are detachably connected.

Further, the joint of the two positioners of each embedded bar connector is respectively provided with an L-shaped positioner side wing, and second bolt holes are reserved on two L-shaped plates formed by the positioner side wings;

the locator flanks of the two locators of each embedded bar connector are detachably connected through a second bolt matched with the second bolt hole;

the locator flanks of two adjacent locators are detachably connected through a second bolt matched with the second bolt hole.

Further, a third positioner limiting groove corresponding to the positioner flanks of the positioners one by one is reserved on one side of the steel side plate, close to the positioners;

the third locator limiting groove is matched and clamped with the locator flank of the locator.

Further, inflatable air bags are arranged between the plurality of positioners and the steel side plate, and two adjacent inflatable air bags are communicated;

and each inflatable air bag is provided with an external inflation nozzle penetrating through the steel side plate, and the external inflation nozzle is provided with a detachable rubber protection plug.

The embodiment of the utility model has the beneficial effects that:

1. the periphery of the embedded steel bar connector forms a stable steel supporting structure consisting of a locator, a steel side plate, a steel sealing cover and the like, and is used for bearing the load from underwater concrete, so that the embedded steel bar connector is prevented from being directly loaded, and meanwhile, the embedded steel bar connector is prevented from being damaged when the subsequent underground continuous wall is roughened; the first bolts are driven into the embedded steel bar connector, so that the condition that concrete enters the inner side of the embedded steel bar connector when underwater concrete is poured into the underground continuous wall is avoided, wire teeth of the embedded steel bar connector are damaged and corroded, the survival rate of the embedded steel bar connector is improved, the situation that the embedded steel bar connector cannot be normally used in the later period is avoided, and a large amount of manpower, material resources and financial resources are saved; the problem that wire teeth of the embedded bar connector are damaged by chiseling and rusted in the construction process so as to cause incapability of being used is solved;

2. by arranging the positioners around the embedded bar connector, the deviation of the angle or elevation of the embedded bar connector caused by collision with the groove wall in the hoisting process of the underground diaphragm wall reinforcement cage is avoided, and the problem that the embedded bar connector cannot be used due to uneven positioning and deflection in the construction process is solved;

3. the device is made of steel, and has high strength; the self-protection device has the advantages that when underwater concrete is poured, the bending moment generated when the impact force of the underwater concrete acts on a steel support structure consisting of the positioning bottom plate, the positioning device, the steel side plate and the steel sealing cover is reasonably reduced by utilizing the multi-point simple support characteristic of the positioning device on the steel side plate, so that the self-protection of the device is realized;

4. the positioning and protecting device is convenient to construct, and can recover parts such as a locator after the connection of the underground continuous wall and a station main body structure is completed subsequently.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic installation diagram of a positioning protection device of an underground diaphragm wall embedded bar connector in this embodiment.

Fig. 2 is a schematic plan view of a positioning base plate in the present embodiment.

Fig. 3 is a schematic plan view of the positioning base plate, the embedded bar connector and the positioner according to the present embodiment.

Fig. 4 is a three-dimensional schematic view of a steel side plate of the present embodiment.

Fig. 5 is a schematic plan view of the inner side of the steel cover of the present embodiment.

Fig. 6 is a schematic plan view of the outside of the steel cover of the present embodiment.

Fig. 7 is a schematic structural view of a first bolt of the present embodiment.

Fig. 8 is a three-dimensional schematic diagram of the positioner according to the present embodiment.

Fig. 9 is a schematic plan view of an inflatable airbag and a steel side panel of the present embodiment.

In the figure, 1, a pre-buried steel bar connector, 2, a positioning bottom plate, 3, a steel side plate, 4, a positioner, 5, a first bolt, 6, a steel sealing cover, 7, a bolt protecting cover, 8, a first steel side plate limiting groove, 9, a diaphragm wall anchor hole, 10, a first connector limiting hole, 11, a third positioner limiting groove, 12, a second steel side plate limiting groove, 13, a first screw rod hole, 14, a screw cap hole, 15, a diaphragm wall anchor, 16, a second bolt hole, 17, a second bolt, 19, a screw cap, 20, a screw rod, 21, a positioner flank, 22, a first positioner limiting groove, 23, a second positioner limiting groove, 24, a second connector limiting hole, 25, a diaphragm wall transverse rib, 26, an inflatable air bag, 27, a soft air pipe and 28, an external air charging nozzle, 29.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

The embodiment provides a positioning protection device for an underground diaphragm wall embedded bar connector, which is hereinafter referred to as a positioning protection device, as shown in fig. 1-3, and includes:

the locator 4 is arranged on the outer side of the embedded bar connector 1 and used for locating the embedded bar connector 1;

the positioning bottom plate 2 is welded with the transverse ribs 25 of the underground continuous wall, the embedded steel bar connector 1 and the positioner 4 are arranged on the positioning bottom plate 2, and the anchor ribs 15 of the underground continuous wall penetrate through the positioning bottom plate 2 and are connected with the embedded steel bar connector 1;

the steel side plates 3 are arranged on two sides of the positioner 4, and the positioner 4 is protected;

the steel sealing cover 6 is arranged at the tops of the embedded bar connector 1, the locator 4 and the steel side plate 3;

the bottom of the steel side plate 3 is connected with the positioning bottom plate 2, and the top of the steel side plate 3 is connected with the steel sealing cover 6.

Through the arrangement of the structure, a stable steel supporting structure is formed around the embedded bar connector 1, and the steel side plates 3 are used for bearing the load from concrete around, so that the embedded bar connector 1 is prevented from being directly loaded. The locator 4 is arranged around the embedded bar connector 1, so that collision with the groove wall in the hoisting process of the underground diaphragm wall reinforcement cage is avoided, the embedded bar connector 1 is prevented from generating angle deviation or deviation in elevation, and meanwhile, damage to the embedded bar connector 1 in the process of roughening the subsequent underground diaphragm wall is avoided. In addition, the positioner 4 simply supports the steel side plate 3 at multiple points, reduces bending moment generated by concrete impact force on the steel side plate, and reduces deformation of the steel side plate 3.

In some embodiments, as shown in fig. 2, a first steel side plate limiting groove 8, an underground continuous wall anchor bar hole 9, a first connector limiting hole 10 and a first locator limiting groove 22 are reserved on the positioning bottom plate 2;

as shown in fig. 5, a first bolt hole, a second connector limiting hole 24, a second locator limiting groove 23 and a second steel side plate limiting groove 12 are reserved on the steel sealing cover 6;

the bottom of the embedded bar connector 1 is arranged in the corresponding first connector limiting hole 10, and the top is arranged in the corresponding second connector limiting hole 24;

the bottom of the locator 4 is arranged in a corresponding first locator limit groove 22, and the top is arranged in a corresponding second locator limit groove 23;

the bottom of the steel side plate 3 is arranged in the first steel side plate limiting groove 8, and the top is arranged in the second steel side plate limiting groove 12;

the underground diaphragm wall anchor bars 15 penetrate through the underground diaphragm wall anchor bar holes 9 and are connected with the embedded bar connectors 1 in the corresponding first connector limiting holes 10;

the first bolt 5 passes through a first bolt hole on the steel sealing cover 6 and is in threaded connection with the internal thread of the embedded bar connector 1, and the embedded bar connector 1, the positioning bottom plate 2, the steel side plate 3, the positioner 4 and the steel sealing cover 6 are connected into a whole, so that the dislocation of each part caused by impact in the subsequent hoisting process of the steel reinforcement cage and the process of pouring underwater concrete is avoided. Simultaneously, can play the shutoff effect through with first bolt 5, avoided underground diaphragm wall when pouring concrete under water, the concrete gets into the embedded bar and connects the ware 1 inboard, causes the internal thread of embedded bar to connect the ware 1 to destroy, corrosion, has improved the survival rate of embedded bar and connects the ware 1, has avoided later stage to plant the muscle remedy because of embedded bar connects the ware 1 unable normal use, has saved a large amount of manpower and materials and financial resources. The positioning bottom plate 2, the steel side plates 3 and the steel sealing cover 6 are spliced, the construction process is simple and rapid, the time required by welding is reduced, and after the subsequent underground continuous wall roughening construction is finished, the underground continuous wall roughening construction can be recycled, the utilization rate is improved, and the construction cost is saved.

Specifically, as shown in fig. 6, the first bolt hole includes a first screw hole 13 and a nut hole 14, a nut 19 of the first bolt 5 is provided in the nut hole 14, and a screw 20 of the first bolt 5 is provided in the first screw hole 13.

In some embodiments, a plurality of embedded bar connectors 1 are arranged on the positioning bottom plate 2;

the steel side plates 3 are arranged on two sides of the positioners 4;

the steel sealing cover 6 is arranged at the tops of the locators 4 and the embedded bar connector 1;

the steel sealing cover 6 is provided with a plurality of first bolt holes, and a plurality of first bolts 5 are connected with a plurality of embedded bar connectors 1 in a one-to-one correspondence manner through corresponding first bolt holes.

In some embodiments, as shown in fig. 7, the central positions of the nut 19 and the screw 20 of the first bolt 5 are hollow structures, and the shape of the nut 19 is regular hexagon, so that on one hand, the weight of the first bolt 5 can be reduced while the strength of the first bolt 5 is guaranteed, on the other hand, a positioner is arranged in the hollow structures of the first bolt 5, namely the nut 19 and the screw 20, after the underwater concrete pouring is completed, when the embedded bar connector 1 is excavated, the condition that the elevation of the embedded bar connector 1 on the drawing is different from the actual elevation due to the settlement of the ground connection wall can occur, and at the moment, the position of the positioning protection device can be determined by the positioner, so that the accurate excavation of the embedded bar connector 1 is realized, a large range of excavation is avoided, manpower and material resources are greatly saved, and the construction efficiency is improved.

In some embodiments, the detachable bolt protection cover 7 is disposed at the hole of the nut hole 14, the bolt protection cover 7 is used for protecting the nut 19 of the first bolt 5, so as to prevent concrete from entering the hollow structure of the first bolt 5, and the surface of the bolt protection cover 7 is flush with the surface of the steel sealing cover 6, so that the concrete seals the bolt protection cover 7 due to the height difference between the surface of the bolt protection cover 7 and the steel sealing cover 6, and the subsequent disassembly is prevented from being influenced. When the first bolt 5 is installed, the bolt protection cover 7 is opened, the first bolt 5 is screwed into the first bolt hole, after the installation is finished, the bolt protection cover 7 is covered, the first bolt 5 is effectively protected, and the problem that concrete enters the first bolt hole to influence the subsequent disassembly of the first bolt 5 when underwater concrete is poured is avoided.

In some embodiments, the depth of the first steel side plate limit groove 8 and the first locator limit groove 22 reserved on the positioning bottom plate 2 is kept to be half of the thickness of the positioning bottom plate 2, the hole height of the reserved underground diaphragm wall anchor hole 9 is half of the thickness of the positioning bottom plate 2, so that the depths of the first steel side plate limit groove 8, the underground diaphragm wall anchor hole 9 and the first locator limit groove 22 are limited on one hand so as to avoid the phenomenon that dislocation occurs between each part in the subsequent construction process due to too small slot (hole) depth, and the failure of the positioning protection device is caused, and on the other hand, the reduction of the strength of each part due to the overlarge hole (groove) depth, the reduction of the protection performance of the positioning protection device and the unified slot (hole) depth are avoided, so that the construction is convenient, and the construction efficiency is improved. The diameter of the underground diaphragm wall anchor bar hole 9 is the same as that of the underground diaphragm wall anchor bar 15, the circle center of the first connector limiting hole 10 coincides with the circle center of the underground diaphragm wall anchor bar hole 9, and the axial deviation of the embedded bar connector 1 caused by pouring underwater concrete is effectively reduced.

In some embodiments, the second steel side plate limiting groove 12, the second locator limiting groove 23 and the second connector limiting hole 24 are all located inside the steel sealing cover 6, the nut hole 14 is located outside the steel sealing cover 6, the second connector limiting hole 24 is communicated with the nut hole 14 through the first screw hole 13, and the center of the first screw hole 13 and the center of the nut hole 14 coincide with the center of the second connector limiting hole 24. The depths of the second steel side plate limit groove 12 and the second positioner limit groove 23 reserved on the steel cover 6 are kept to be one third of the thickness of the steel cover 6, the hole depths of the second connector limit hole 24 and the nut hole 14 are one third of the thickness of the steel cover 6, the design is because the aperture of the nut hole 14 is smaller than the sum of the width of the second positioner limit groove 23 and the aperture of the second connector limit hole 24, cement paste is easy to invade the positioning protection device in the subsequent construction when the depth of a slot (hole) is one half of the thickness of the steel cover, but a buffer zone exists between the nut hole 14 and the second connector limit hole 24 on the steel cover 6, cement paste is prevented from invading the positioning protection device in the subsequent construction, and meanwhile, the tight connection of the first bolt 5 and the steel cover 6 and the pre-embedded reinforcement connector 1 can be ensured.

In some embodiments, each pre-buried bar connector 1 is cooperatively surrounded by two detachably connected locators 4;

the locator 4 of two adjacent embedded bar connectors 1 on the locating bottom plate 2 can be detachably connected, so that all the embedded bar connectors 1 are guaranteed to be on the same horizontal line, and the overlarge elevation or angle deviation can not occur.

In some embodiments, the connection part of the two locators 4 of each embedded bar connector 1 is respectively provided with an L-shaped locator flank 21, and second bolt holes 16 are reserved on two L-shaped plates formed by the locator flanks 21, as shown in fig. 8;

as shown in fig. 3, the locator flanks 21 of the two locators 4 of each pre-buried bar connector 1 are detachably connected by a second bolt 17 matched with the second bolt hole 16;

the locator flank 21 of the locator 4 of two adjacent embedded bar connectors 1 can be detachably connected through the second bolt 17 matched with the second bolt hole 16, so that all the embedded bar connectors 1 are guaranteed to be on the same horizontal line, and the azimuth deflection is avoided, and the subsequent connection with a station main body structure is influenced.

In some embodiments, as shown in fig. 4, a third positioner limiting groove 11 corresponding to the positioner side wings 21 of the plurality of positioners 4 one by one is reserved on one side of the steel side plate 3 close to the positioners 4, and the third positioner limiting groove 11 is matched and clamped with the positioner side wings 21 of the positioners 4, so that the mutual limiting effect of the steel side plate 3 and the positioners 4 is realized.

In some embodiments, the depth of the third locator limit slot 11 reserved on the steel side plate 3 is kept at half the thickness of the steel side plate 3.

In some embodiments, because the positioning protection device of the proposed underground diaphragm wall embedded reinforcement connector is of a spliced structure, underwater concrete slurry is difficult to penetrate into a spliced seam, in order to save disassembly time, as shown in fig. 9, an inflatable air bag 26 is arranged between a plurality of positioners 4 and a steel side plate 3, two adjacent inflatable air bags 26 are communicated, specifically, two adjacent inflatable air bags 26 can be communicated through a soft air pipe 27 penetrating through a positioner side wing 21 of the positioners 4, an external inflatable hole mouth 28 penetrating through a steel side plate 3 is arranged on each inflatable air bag 26, and a detachable rubber protection plug is arranged on the external inflatable hole mouth 28, so that the external inflatable hole mouth 28 is prevented from being blocked by the concrete slurry subsequently.

After the external concrete of the positioning protection device of the lower continuous wall embedded bar connector is cut and the first bolt 5 is dismounted, the soft rubber plug on the external air charging hole nozzle 28 is dismounted, the external air charging hole nozzle 28 of the air charging air bag 26 is communicated with the compressed air machine 29, air is pressed into the air charging air bag 26 through the compressed air machine 29, the steel sealing cover 6 is dismounted by utilizing the impact force generated by the expansion of the air charging air bag 26, and the quick dismounting of the steel sealing cover 6 is realized.

Example 2

The embodiment provides a construction method of the positioning protection device of the underground diaphragm wall embedded bar connector of the embodiment 1, comprising the following steps:

step S1: determining specification and model numbers and arrangement intervals of the embedded steel bar connectors 1, marking the positions of underground diaphragm wall anchor bars 15 connected with one end of the embedded steel bar connectors 1 on the positioning bottom plate 2 along the arrangement direction of the embedded steel bar connectors 1, and forming underground diaphragm wall anchor bar holes 9 by punching holes on the positioning bottom plate 2 according to the diameter of the underground diaphragm wall anchor bars 15;

step S2: continuously perforating on the foundation of the anchor bar hole 9 of the underground continuous wall according to the outer diameter of the embedded steel bar connector 1 to form a first connector limiting hole 10, determining the thickness of the locator 4, and reserving a first locator limiting groove 22 along the edge of the locator 4 at the inner side of the locating bottom plate 2;

step S3: determining the thickness of the steel side plate 3, and reserving first steel side plate limiting grooves 8 at symmetrical positions on the positioning bottom plate 2;

step S4: a third positioner limiting groove 11 is formed in the inner side of the steel side plate 3 according to the thickness of the positioner side wing 21 of the positioner 4, and the slotting direction is perpendicular to the positioning bottom plate 2; notably, along the direction in which the third locator limit grooves 11 are arranged, the width of the first third locator limit groove 11 and the width of the last third locator limit groove 11 are equal to the thickness of the locator flank 21 of the locator 4, and the width of the rest of the third locator limit grooves 11 is equal to twice the thickness of the locator flank 21 of the locator 4;

step S5: determining the specification and model of a first bolt 5, and forming a first screw hole 13 according to the diameter of a screw rod 20 of the first bolt 5 on a corresponding position of the steel seal cover 6 according to the center position of an inner hole of the embedded steel bar connector 1, wherein the opening depth of the first screw hole 13 is equal to the thickness of the steel seal cover 6;

step S6: continuously perforating at the outer side of the steel sealing cover 6 according to the diameter of the screw cap 19 of the first bolt 5 to form a screw cap hole 14, wherein the perforating depth is equal to the sum of the height of the screw cap 19 of the first bolt 5 and the thickness of the bolt protecting cover 7;

step S7: reserving second steel side plate limiting grooves 12 at symmetrical positions on the inner side of the steel sealing cover 6, wherein the second steel side plate limiting grooves 12 correspond to the first steel side plate limiting grooves 8 on the positioning bottom plate 2;

step S8: reserving a second locator limit groove 23 along the edge of the locator 4 on the inner side of the steel sealing cover 6, wherein the second locator limit groove 23 corresponds to the first locator limit groove 22 on the locating bottom plate 2;

step S9: assembling a positioning protection device, firstly, penetrating a positioning bottom plate 2 through an underground continuous wall anchor bar 15 through an underground continuous wall anchor bar hole 9, and welding the positioning bottom plate 2 with an underground continuous wall transverse bar 25; then installing the embedded bar connector 1 and the positioners 4 in turn, connecting two adjacent positioners 4 by adopting a second bolt 17, ensuring that all the embedded bar connectors 1 are positioned on the same horizontal line after the connection of each positioner 4 is completed, and ensuring that the embedded bar connector 1 and the positioners 4 are completely clamped into the corresponding first connector limiting holes 10 and the corresponding first positioner limiting grooves 22; then installing the steel side plates 3, and ensuring that the two steel side plates 3 are completely embedded into the corresponding first steel side plate limiting grooves 8 and ensuring that the positioner side wings 21 of the positioners 4 are clamped into the corresponding third positioner limiting grooves 11; and finally, installing a steel sealing cover 6, and after ensuring that the embedded reinforcement connector 1, the locator 4 and the steel side plate 3 are completely embedded into the corresponding second connector limiting hole 24, the second locator limiting groove 23 and the second steel side plate limiting groove 12, screwing in the first bolt 5 and covering the bolt protection cover 7, thereby completing the installation construction of the positioning protection device of the underground diaphragm wall embedded reinforcement connector.

By adopting the method for construction, the locator 4, the steel side plate 3 and the steel sealing cover 6 are arranged on the periphery of the embedded bar connector 1, the steel supporting structure consisting of the locating bottom plate 2, the steel side plate 3, the locator 4 and the steel sealing cover 6 outside the embedded bar connector 1 is carried out by a building block like method, the first bolt 5 plays a role in fixing the steel supporting structure while protecting the embedded bar connector 1, the part needing welding fixation is reduced, and the defect that the embedded bar connector 1 is not located and protected in place by the traditional method is overcome. It should be noted that the above positioner 4, the steel side plate 3, the steel cover 6, the first bolt 5, etc. can be recycled, so that the construction cost is reduced, and the economic benefit is good.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model are included in the protection scope of the present utility model.

Claims (8)

1. Positioning protection device of underground diaphragm wall embedded bar connector, its characterized in that includes:

the locator (4) is arranged at the outer side of the embedded bar connector (1) and used for locating the embedded bar connector (1);

the positioning base plate (2), the positioning base plate (2) is welded with the transverse ribs (25) of the underground continuous wall, the embedded steel bar connector (1) and the positioner (4) are arranged on the positioning base plate (2), and the anchor ribs (15) of the underground continuous wall penetrate through the positioning base plate (2) and are connected with the embedded steel bar connector (1);

the steel side plates (3) are arranged on two sides of the positioner (4) to protect the positioner (4);

the steel sealing cover (6) is arranged at the tops of the embedded bar connector (1), the locator (4) and the steel side plate (3);

the bottom of the steel side plate (3) is connected with the positioning bottom plate (2), and the top of the steel side plate (3) is connected with the steel sealing cover (6).

2. The positioning protection device of the underground diaphragm wall embedded bar connector according to claim 1, wherein a first steel side plate limiting groove (8), an underground diaphragm wall anchor bar hole (9), a first connector limiting hole (10) and a first positioner limiting groove (22) are reserved on the positioning bottom plate (2);

a first bolt hole, a second steel side plate limit groove (12), a second positioner limit groove (23) and a second connector limit hole (24) are reserved on the steel sealing cover (6);

the bottom of the embedded bar connector (1) is arranged in a corresponding first connector limiting hole (10), and the top of the embedded bar connector is arranged in a corresponding second connector limiting hole (24);

the bottom of the steel side plate (3) is arranged in the first steel side plate limiting groove (8), and the top of the steel side plate is arranged in the second steel side plate limiting groove (12);

the bottom of the locator (4) is arranged in a corresponding first locator limit groove (22), and the top of the locator is arranged in a corresponding second locator limit groove (23);

the underground diaphragm wall anchor bars (15) penetrate through the underground diaphragm wall anchor bar holes (9) and are connected with the embedded bar connectors (1) in the corresponding first connector limiting holes (10);

the first bolt (5) passes through a first bolt hole on the steel sealing cover (6) and is in threaded connection with the embedded bar connector (1), and the embedded bar connector (1), the positioning bottom plate (2), the steel side plate (3), the positioner (4) and the steel sealing cover (6) are connected into a whole.

3. The positioning protection device of the underground diaphragm wall embedded bar connector according to claim 1, wherein a plurality of embedded bar connectors (1) are arranged on the positioning bottom plate (2);

the steel side plates (3) are arranged on two sides of the positioners (4);

the steel sealing cover (6) is arranged at the tops of the positioners (4) and the embedded bar connector (1);

the steel sealing cover (6) is provided with a plurality of first bolt holes, and a plurality of first bolts (5) are connected with a plurality of embedded bar connectors (1) in one-to-one correspondence through the corresponding first bolt holes.

4. The positioning protection device of the underground diaphragm wall embedded bar connector according to claim 2, wherein the central positions of the screw cap (19) and the screw rod (20) of the first bolt (5) are hollow structures;

the hollow structures of the screw cap (19) and the screw rod (20) are internally provided with a positioner;

the first bolt hole consists of a first screw hole (13) and a nut hole (14), and a detachable bolt protection cover (7) is arranged at the orifice of the nut hole (14);

the diameter of the underground diaphragm wall anchor rib hole (9) is the same as that of the underground diaphragm wall anchor rib (15), and the circle center of the first connector limiting hole (10) coincides with the circle center of the underground diaphragm wall anchor rib hole (9);

the second steel side plate limit groove (12), the second locator limit groove (23) and the second connector limit hole (24) are all positioned at the inner side of the steel sealing cover (6), and the nut hole (14) is positioned at the outer side of the steel sealing cover (6);

the second connector limiting hole (24) is communicated with the nut hole (14) through the first screw hole (13), and the circle center of the first screw hole (13) and the circle center of the nut hole (14) are coincident with the circle center of the second connector limiting hole (24).

5. The positioning protection device of the underground diaphragm wall embedded bar connector according to any one of claims 1 to 4, wherein each embedded bar connector (1) is surrounded by two detachably connected positioners (4) in a matching way;

the locators (4) of two adjacent embedded bar connectors (1) on the locating bottom plate (2) are detachably connected.

6. The positioning protection device of the underground diaphragm wall embedded bar connector according to claim 5, wherein the joint of the two positioning devices (4) of each embedded bar connector (1) is respectively provided with an L-shaped positioning device side wing (21), and second bolt holes (16) are reserved on two L-shaped plates formed by each positioning device side wing (21);

the locator flanks (21) of the two locators (4) of each embedded bar connector (1) are detachably connected through second bolts (17) matched with the second bolt holes (16);

the positioner flanks (21) of two adjacent positioners (4) are detachably connected through a second bolt (17) matched with the second bolt hole (16).

7. The positioning protection device of the underground diaphragm wall embedded bar connector according to claim 6, wherein a third positioner limiting groove (11) which is in one-to-one correspondence with positioner side wings (21) of a plurality of positioners (4) is reserved on one side of the steel side plate (3) close to the positioners (4);

the third locator limiting groove (11) is matched and clamped with a locator flank (21) of the locator (4).

8. The positioning protection device of the underground diaphragm wall embedded bar connector according to any one of claims 1 to 4, 6 or 7, wherein an inflatable air bag (26) is arranged between a plurality of positioners (4) and a steel side plate (3), and two adjacent inflatable air bags (26) are communicated;

each inflatable air bag (26) is provided with an external inflation nozzle (28) penetrating through the steel side plate (3), and the external inflation nozzle (28) is provided with a detachable rubber protection plug.