Pre-embedded combined member for hoisting, leveling and grouting basalt pavement prefabricated slab

Abstract

The utility model relates to the technical field of back-off basalt precast slabs, and provides an embedded combined member for hoisting, leveling and grouting basalt pavement precast slabs, which comprises a first steel pipe and a second steel pipe which are vertically arranged on the horizontal plane, and the upper and lower parts of the first steel pipe and the second steel pipe are respectively positioned on the same horizontal line; an internal thread structure is arranged in the first steel pipe; connecting rods are welded to the middles of the two side walls in the arrangement direction of the first steel pipe and the second steel pipe correspondingly, and the connecting rods on the same side are welded to the side walls of the two steel pipes.

Description

Technical Field

[0001] The utility model relates to the technical field of undercut basalt prefabricated panels, in particular to a pre-buried composite component for hoisting, leveling and grouting of basalt pavement prefabricated panels. Background Art

[0002] When the basalt pavement is constructed using the inverted method, several basalt blocks are first poured together with concrete to form a prefabricated board. Each prefabricated board is then transported to the construction site and arranged in sequence on the installation pavement according to the design drawings. Each prefabricated board needs to be leveled before grouting can be performed between each prefabricated board and the base pavement to connect them together. The existing leveling process for each prefabricated board is cumbersome and not easy to operate. In addition, the prefabricated board in the inverted state needs to rely on mechanical equipment to flip the inverted state to the front-facing state. During this process, the prefabricated board is easily damaged during the hoisting process, and in severe cases, it will be scrapped or even cause a safety accident.

[0003] Therefore, we propose a pre-embedded composite component for hoisting, leveling and grouting of basalt pavement precast panels. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a pre-embedded composite component for the lifting, leveling and grouting of basalt pavement precast panels, which overcomes the deficiencies in the prior art. By providing a first steel pipe and a second steel pipe, the lifting eye thread can cooperate with the first steel pipe to realize the lifting and flipping of the precast panels, and can also cooperate with the long rod bolts during the leveling operation of the precast panels, so the leveling operation can be completed quickly and simply. After the leveling is completed, the second steel pipe serves as a grouting port to connect each precast panel and the basic pavement to each other.

[0006] (II) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A pre-buried composite component for hoisting, leveling and grouting of basalt pavement prefabricated panels, characterized in that:

[0009] It comprises a first steel pipe and a second steel pipe arranged vertically on a horizontal plane, and the upper and lower parts of the first steel pipe and the second steel pipe are respectively on the same horizontal line, and an internal thread structure is provided in the first steel pipe;

[0010] Connecting rods are respectively welded to the middle of the two side walls along the arrangement direction of the first steel pipe and the second steel pipe, and the connecting rods on the same side are welded to the side walls of the two steel pipes.

[0011] Preferably, the first steel pipe and the second steel pipe are arranged in a close-fitting manner and are welded at the fitting point.

[0012] Preferably, the first steel tube and the second steel tube are arranged at intervals.

[0013] Preferably, the internal thread structure is formed by opening an internal thread on the inner wall surface of the first steel pipe.

[0014] Preferably, the first steel pipe is of a split type, divided into two sections of a longer section and a shorter section with the same inner and outer diameters, and the same pipe body connector is connected between the two sections of the steel pipe, and the outer wall surfaces at both ends of the pipe body connector are detachably connected to the inner wall surfaces of the two sections of the steel pipe.

[0015] Preferably, the internal thread structure is an internal thread provided on the inner wall surface of the pipe body connector.

[0016] Preferably, an annular protrusion is further provided in the middle of the outer wall surface of the pipe body connector.

[0017] Preferably, both sides of each of the connecting rods extend outward horizontally and exceed the horizontal length of the first steel tube and the second steel tube in the arranged state.

[0018] (III) Beneficial effects

[0019] The embodiment of the utility model provides a pre-embedded composite component for hoisting, leveling and grouting of basalt pavement prefabricated panels. It has the following beneficial effects:

[0020] By providing the first steel pipe and the second steel pipe, the lifting eye thread can cooperate with the first steel pipe to realize the lifting and flipping of the precast panel, and can also cooperate with the long rod bolt during the leveling operation of the precast panel, so the leveling operation can be completed simply and quickly; after the leveling is completed, the second steel pipe serves as a grouting port to connect each precast panel to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the structure of the first steel pipe and the second steel pipe being arranged in a fitted manner according to the utility model;

[0022] Figure 2 It is a three-dimensional schematic diagram of the structure in which the first steel pipe and the second steel pipe are arranged in an interval manner in the utility model;

[0023] Figure 3 This is a three-dimensional schematic diagram of the utility model (split type) in which the first steel pipe and the second steel pipe are arranged in an interval manner;

[0024] Figure 4 It is a three-dimensional schematic diagram of the split first steel pipe structure (explosion state) of the utility model;

[0025] Figure 5 for Figure 4A three-dimensional schematic diagram of the split first steel pipe structure (combined state) of the utility model.

[0026] In the figure:

[0027] 1. The first steel pipe;

[0028] 2. The second steel pipe;

[0029] 3. Connecting rod;

[0030] 4. Pipe body connectors. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In the existing basalt inverted prefabricated panel assembly construction, it is necessary to first lay the basalt blocks invertedly in a square template and lay them neatly, and then pour a bonding layer (using polymer dry-mixed mortar) on the back of the basalt plate (composed of several basalt blocks) after the laying is completed. The concrete layer needs to be poured within 2 hours after the construction of the bonding layer is completed (before the concrete layer is poured, the steel mesh frame needs to be pre-installed and assembled on the outer peripheral side of the basalt plate). After the concrete is poured and consolidated, the inverted basalt prefabricated plate needs to be turned over and hoisted. During this process, it is inconvenient to hoist and transport the prefabricated plate.

[0033] Based on this, the utility model provides a pre-embedded composite component for hoisting, leveling and grouting of basalt pavement prefabricated panels. The pre-embedded composite component is installed in the steel mesh frame when it is made, and includes a first steel pipe 1 and a second steel pipe 2 of the same length, and the first steel pipe 1 and the second steel pipe 2 are relatively parallel, and the first steel pipe and the second steel pipe 2 are both perpendicular to the horizontal plane for use;

[0034] Connecting rods 3 are respectively welded to the middle of the two side walls along the arrangement direction of the first steel tube 1 and the second steel tube 2, and the connecting rod 3 on each side is welded to the two steel tubes respectively.

[0035] In some embodiments, the first steel pipe 1 and the second steel pipe 2 are arranged at intervals. When the connecting rod 3 is welded, the stability of the correctly placed first steel pipe 1 and the second steel pipe 2 is maintained to avoid offset errors between the two steel pipes during welding.

[0036] In other embodiments, in order to further improve the connection strength between the two steel pipes and avoid relative displacement between the two steel pipes due to force, the first steel pipe 1 and the second steel pipe 2 are arranged in a close fit, and welding is first performed at the joint of the two steel pipes, and then the connecting rods 3 on both sides are welded. Compared with the staggered arrangement, this close fit arrangement can improve the convenience of welding the connecting rods 3, and there is no need to maintain the stability between the two steel pipes.

[0037] Each steel mesh frame is installed with upper and lower layers of steel mesh in a square frame. Each layer of steel mesh is a criss-cross mesh structure. Four pre-embedded composite components in this application are installed between the upper and lower layers of steel mesh. Specifically, the four pre-embedded composite components are respectively installed at the four corners close to the square frame.

[0038] In some embodiments, in order to facilitate the positioning of the embedded composite components at the upper and lower steel meshes, both sides of each connecting rod 3 extend horizontally outward and exceed the horizontal length of the first steel pipe 1 and the second steel pipe 2 in the arranged state.

[0039] The inner wall surface of the first steel pipe 1 is provided with internal threads. The inner wall surface of the first steel pipe 1 can be provided with internal threads from beginning to end, or only a part of the inner wall surface can be provided with internal threads. The second steel pipe 2 is used as a grouting port for grouting operation to install and fix after the basalt prefabricated panels are flipped and spliced.

[0040] For the convenience of opening an internal thread on the inner wall of the first steel pipe 1, the first steel pipe 1 is divided into two sections, a longer section and a shorter section, with the same inner and outer diameters, and a pipe body connector 4 is detachably connected between the two sections of the steel pipe. The pipe body connector 4 is a hollow cylinder and has an internal thread on the inner wall of the cylinder.

[0041] The outer wall of the pipe connector can extend into the inner wall of the two sections of steel pipes and be detachably connected to the inner wall; the outer wall of the pipe body connector 4 and the inner wall of the two sections of steel pipes are connected by plugging, or the outer wall of the pipe body connector 4 and the inner wall of the two sections of steel pipes are connected by threads.

[0042] An annular protrusion is also provided in the middle of the outer wall surface of the pipe body connector 4 to limit the maximum travel amount between a certain section of the steel pipe and the pipe body connector 4 .

[0043] Before pouring the concrete layer on the steel mesh frame, the upward grouting holes of the second steel pipe 2 are sealed and wrapped tightly to prevent concrete from being injected from the grouting holes of the second steel pipe 2 and clogging them during pouring, thereby affecting the grouting operation around the bottom of the turned basalt slab.

[0044] When the inverted precast panels are hoisted by crane, the four embedded composite components on each precast panel are threadedly connected with lifting rings. Specifically, the bottom bolts of the lifting rings are threadedly engaged in the first steel pipe 1 of the embedded assembly. After the four lifting rings are installed, a balanced shoulder beam is used to lift the precast panel vertically and flip it over.

[0045] When installing the prefabricated panels, flip the inverted basalt prefabricated panels to face up, and arrange them on the installation ground in sequence. Use a high-precision level to monitor the elevation, and use a calibrated 3-meter ruler to detect the flatness at 360 degrees. The flatness is controlled within 2 mm, and the prefabricated panels need to be leveled one by one. During the leveling process, a long screw bolt (the screw length of this bolt is greater than the overall length of the first steel pipe 1) is screwed into the first steel pipe 1. When the long screw bolt is turned toward the ground and contacts, the basalt prefabricated panel can be lifted up, thereby achieving the leveling of the basalt prefabricated panel.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pre-buried composite component for hoisting, leveling and grouting of basalt pavement prefabricated panels, characterized in that: It comprises a first steel pipe (1) and a second steel pipe (2) which are arranged vertically on a horizontal plane, and the upper and lower parts of the first steel pipe (1) and the second steel pipe (2) are respectively on the same horizontal line, and the first steel pipe (1) is provided with an internal thread structure; Connecting rods (3) are respectively welded to the middle of the two side walls along the arrangement direction of the first steel tube (1) and the second steel tube (2), and the connecting rods (3) on the same side are welded to the side walls of the two steel tubes.

2. The embedded composite component for hoisting, leveling and grouting of basalt pavement prefabricated panels according to claim 1, characterized in that: The first steel pipe (1) and the second steel pipe are arranged in a close-fitting manner and are welded at the joint between the two.

3. The embedded composite component for hoisting, leveling and grouting of basalt pavement prefabricated panels according to claim 1, characterized in that: The first steel tube (1) and the second steel tube (2) are arranged at intervals.

4. The embedded composite component for hoisting, leveling and grouting of basalt pavement prefabricated panels as claimed in claim 2 or 3, characterized in that: The internal thread structure is that an internal thread is provided on the inner wall surface of the first steel pipe (1).

5. The embedded composite component for hoisting, leveling and grouting of basalt pavement prefabricated panels as claimed in claim 2 or 3, characterized in that: The first steel pipe (1) is of a split type, and is divided into two sections of steel pipe, a longer section and a shorter section, with the same inner and outer diameters, and the same pipe body connector (4) is connected between the two sections of steel pipe, and the outer wall surfaces at both ends of the pipe body connector (4) are detachably connected to the inner wall surfaces of the two sections of steel pipe.

6. The embedded composite component for hoisting, leveling and grouting of basalt pavement prefabricated panels as claimed in claim 5, characterized in that: The internal thread structure is a structure in which an internal thread is provided on the inner wall surface of the pipe body connector (4).

7. The embedded composite component for hoisting, leveling and grouting of basalt pavement prefabricated panels as claimed in claim 6, characterized in that: An annular protrusion is also provided in the middle of the outer wall surface of the pipe body connecting piece (4).

8. The embedded composite component for hoisting, leveling and grouting of basalt pavement prefabricated panels as claimed in claim 2 or 3, characterized in that: Both sides of each connecting rod (3) extend outward horizontally and exceed the horizontal length of the first steel pipe (1) and the second steel pipe (2) in the arranged state.

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