Embedded panel void detection grouting hole

Abstract

The utility model discloses a pre-embedded panel void detection grouting hole, which belongs to the technical field of water conservancy and hydropower engineering detection, and comprises a bolt, a concrete panel, connectors, a lengthened nut, a limiting steel bar and an end socket, the bolt is inserted in the lengthened nut, a grouting hole groove is formed in the lengthened nut, one end of each connector is inserted in the side wall of the lengthened nut, and the other end of each connector is inserted in the side wall of the limiting steel bar. One end of the limiting steel bar is inserted into the other end of the connector, the other end of the limiting steel bar is connected with the inner steel bar, the concrete panel is arranged behind the lengthened nut, the inner steel bar is arranged in the concrete panel, and the sealing head is inserted into the tops of the lengthened nut and the bolt. The problems that in the prior art, due to the fact that the fixing effect of an embedded part is not good, the displacement condition occurs, and detection and repairing are affected are solved. Position change and inclination of the grouting hole groove are effectively prevented, and the device can be widely applied to various construction sites.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy and hydropower engineering testing technology, specifically to a pre-embedded panel void detection grouting hole. Background Technology

[0002] With the advancement of science and technology and the improvement of people's living standards, the water conservancy industry is also developing rapidly. As society continues to develop and technology advances, water conservancy engineering construction technology is constantly evolving and improving. Testing technology, as a crucial link in the construction process, has experienced rapid development and growth over the past few decades. Against the backdrop of rapid national economic development, water conservancy and hydropower projects play a vital supporting role in national economic development. These projects integrate power generation, water storage and irrigation, and flood control and disaster reduction. They are closely related to the national economy and people's livelihood, so doing a good job in testing and inspection is of paramount importance. During construction, quality control and testing must be carried out to ensure that every indicator meets relevant requirements. Therefore, testing and inspection during the construction of water conservancy and hydropower projects are essential.

[0003] Pre-embedded detection technology involves pre-installing components within concealed works at a designated construction site, with these components being fixed in place before the structure is poured. However, existing pre-embedded components, due to their small cross-section and volume, are prone to instability and reliability during component pouring, leading to tilting and displacement, and consequently, failure to detect them. While existing technology can repair the poured structure by filling grouting holes with concrete, if the grouting holes are tilted, pouring concrete will not achieve the desired repair effect.

[0004] Therefore, how to provide a pre-embedded panel void detection grouting hole to solve the defects of existing pre-embedded parts in the pre-embedding process is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] Therefore, this utility model provides a pre-embedded panel void detection grouting hole to solve the problem in the prior art where displacement occurs due to poor fixing effect of pre-embedded parts, affecting detection and repair.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model discloses a pre-embedded panel void detection grouting hole, including:

[0008] An extended nut with a bolt inserted inside, and a grouting groove is formed inside the extended nut;

[0009] Several connectors, one end of which is inserted into the side wall of the extended nut;

[0010] A limiting steel bar is inserted at one end into the other end of the connector, and the other end of the limiting steel bar is connected to the inner steel bar.

[0011] A concrete panel is located behind the extended nut, and the inner reinforcing bar is located in the concrete panel.

[0012] The extended nut and bolt have end caps inserted at the top.

[0013] In one possible implementation, the extended nut includes:

[0014] The rod body has a hollow internal structure, and the lower part of the hollow structure is provided with internal threads.

[0015] An annular slot is formed at the top of the rod;

[0016] Several circular holes are formed on the outer wall of the rod, and one end of the connector is screwed into the circular holes.

[0017] In one possible implementation, the bolt includes:

[0018] The bolt rod has a hole on its upper surface.

[0019] A groove is provided on the bolt rod;

[0020] An external thread structure is provided at the lower end of the bolt shank, and the external thread structure is located below the placement groove.

[0021] In one possible implementation, a compression collar is installed in the placement slot.

[0022] In one possible implementation, the connector includes:

[0023] The adapter rod has a second insertion hole inside, and the outer end of the adapter rod is screwed into the circular hole;

[0024] A cylindrical insert rod is screwed into the second insertion hole at one end, and a connector is installed on the surface of the other end of the cylindrical insert rod. A rebar installation hole is opened in the connector, and one end of the limiting rebar is inserted into the rebar installation hole.

[0025] In one possible implementation, the end cap includes:

[0026] A disc with a plug at the bottom, the plug being inserted into the top of the bolt;

[0027] An arc-shaped plate is installed at the bottom of the disc, the arc-shaped plate is inserted into the top of the extended nut, and the arc-shaped plate is located on the outside of the insert block.

[0028] In one possible implementation, the middle section of the limiting reinforcing bar is bent at 180°, and one end of the limiting reinforcing bar is welded and fixed to the inner reinforcing bar.

[0029] This invention, through the design of the connector, allows for the selection of limiting steel bars of different diameters for connection. The connector can be screwed and fixed to an extension nut. This design enables the use of different steel bars depending on the application environment, connecting the extension nut to the cast-in-place concrete panel. This ensures that the position of the extension nut will not shift when pouring concrete into the mold formed by assembling the concrete panel. During pouring, the bolt is placed inside the extension nut, preventing concrete grout from entering the extension nut through the threaded connection. After pouring, the bolt can be removed, and the extension nut can then serve as a grouting hole for testing and repairing concrete structures. Furthermore, the end cap design prevents excessive concrete from flowing into the grouting hole through the gap between the bolt and the extension nut, thus preventing blockage of the grouting hole and the inability to remove the bolt. These advantages enhance the practicality and versatility of this design. Attached Figure Description

[0030] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0031] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0032] Figure 1 A three-dimensional view of the pre-embedded panel void detection grouting hole provided by this utility model;

[0033] Figure 2 A perspective view of the end cap provided for this utility model;

[0034] Figure 3 A cross-sectional view of the extended nut provided by this utility model;

[0035] Figure 4A perspective view of the bolt provided for this utility model;

[0036] Figure 5 A perspective view of the extruded collar provided by this utility model;

[0037] Figure 6 A cross-sectional view of the connector provided by this utility model;

[0038] Figure 7 A cross-sectional view of the disk provided for this utility model;

[0039] Figure 8 A three-dimensional view of the limiting steel bar provided for this utility model;

[0040] In the diagram: 1 Bolt; 11 Placement slot; 12 External thread structure; 13 Insertion hole one; 14 Bolt rod; 2 Concrete panel; 3 Connector; 31 Rebar installation hole; 32 Columnar insert; 33 Insertion hole two; 34 Adapter rod; 35 Connector; 4 Extended nut; 41 Round hole; 42 Internal thread; 43 Annular slot; 44 Rod body; 5 Limiting rebar; 6 End cap; 61 Insert block; 62 Arc plate; 63 Disc; 7 Extrusion collar. Detailed Implementation

[0041] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0042] Please refer to Figures 1-8 The present invention discloses a pre-embedded panel void detection grouting hole, which consists of six parts, as follows: Figures 1-2 It includes bolt 1, concrete panel 2, connector 3, extension nut 4, limiting steel bar 5, and end cap 6. Bolt 1 is inserted inside the extension nut 4, and grouting groove is formed inside the extension nut 4. One end of several connectors 3 is inserted into the side wall of the extension nut 4. One end of the limiting steel bar 5 is inserted into the other end of the connector 3, and the other end of the limiting steel bar 5 is connected to the inner steel bar. The concrete panel 2 is set behind the extension nut 4, and the inner steel bar is set in the concrete panel 2. End cap 6 is inserted at the top of the extension nut 4 and bolt 1.

[0043] In use, this utility model first employs internal steel bars to splice into a frame structure, forming a casting template. Then, an extension nut 4 is taken, and a bolt 1 is inserted into it. Next, a suitable limiting steel bar 5 is selected for the current casting situation, and the limiting steel bar 5 is bent 180° from its middle section. This is because it is necessary to cast concrete with an impact strength suitable for the current environment. Different strengths of concrete require different mix proportions and additional ingredients in certain environments, resulting in varying impact forces during casting. Therefore, a limiting steel bar 5 of appropriate diameter needs to be selected for different environments. Finally, a connector 35 is taken, and one end of the limiting steel bar 5 is inserted into the steel bar installation. In hole 31, the limiting steel bar 5 is connected to the connector 35 by welding. Then, the cylindrical insert 32 connected to the connector 35 is screwed together with the adapter rod 34. Then, the adapter rod 34 is screwed into the round hole 41. Repeat the above operation to connect the eight limiting steel bars 5 to the extension nuts 4. Then, the other end of the limiting steel bar 5 is connected to the inner steel bar by welding again. Then, the inner steel bar is poured first. After the pouring is completed, a concrete panel 2 is formed. During the pouring process, the concrete will bury the part of the limiting steel bar 5 connected to the inner steel bar. This method is used to fix the position of the extension nuts 4. One concrete panel 2 will be connected to multiple extension nuts 4. Several concrete panels 2 connected with extended nuts 4 are spliced ​​together to form a casting mold. Concrete is then poured into the mold. During the pouring process, the impact force of the concrete cannot deform the limiting steel bars 5, thus ensuring that the extended nuts 4 will not shift. Furthermore, since the bolts 1 remain inserted in the extended nuts 4 throughout the pouring process, the hollow structure inside the extended nuts 4 will not be exposed. Moreover, utilizing the characteristic that the extended nuts 4 and bolts 1 are screwed together at the bottom, concrete slurry is also difficult to flow into the hollow structure from the gaps. This design ensures that the concrete... The soil will not completely seal the connection between the extended nut 4 and the bolt 1, preventing the bolt from being pulled out. During the pouring process, concrete grout will inevitably splash, or the grout level may be slightly higher than the extended nut 4. In this case, the end cap 6 can be used to prevent concrete grout from flowing into the hollow structure. Because the thread structure of the extended nut 4 and the bolt 1 is not completely continuous, if concrete grout flows in from the top of the extended nut 4 and the bolt 1, it is very easy to cause problems such as blockage of the grouting hole and inability to pull out the bolt 1. Therefore, the end cap 6 is used to prevent concrete from flowing in. When the bolt 1 is pulled out of the extended nut 4, the hollow structure inside the extended nut 4 becomes the grouting hole, which can be used for the inspection and repair of the formed concrete structure.

[0044] In a specific embodiment, such as Figure 3The extended nut 4 includes a circular hole 41, an internal thread 42, an annular slot 43, and a rod 44. The rod 44 has a hollow structure, with the internal thread 42 located at the bottom. The annular slot 43 is located at the top of the rod 44, and several circular holes 41 are located on the outer wall of the rod 44. One end of the connector 3 is screwed into the circular hole 41. The internal thread in the circular hole 41 engages with the external thread at the outer end of the adapter rod 34, thus connecting the connector 3 to the extended nut 4. The internal thread 42 is designed to engage with the external thread structure 12 of the bolt 1. The use of a threaded connection serves two purposes: firstly, it provides a strong connection, as the force of the concrete is insufficient to push the bolt 1 out of the hollow structure, facilitating the formation of the grouting hole groove; secondly, the threaded connection is tighter, preventing concrete slurry from entering the grouting hole groove. The annular slot 43 is used to install the arc plate 62 and also prevents concrete slurry from flowing into the connection gap between the extended nut 4 and the upper end of the bolt 1.

[0045] In a specific embodiment, such as Figure 4 Bolt 1 includes a placement groove 11, an external thread structure 12, a first insertion hole 13, and a bolt shank 14. The first insertion hole 13 is formed on the upper surface of the bolt shank 14. The placement groove 11 is formed on the bolt shank 14. The external thread structure 12 is located at the lower end of the bolt shank 14, below the placement groove 11. The first insertion hole 13 is designed for screwing the bolt 1 into the extension nut 4 using a screwdriver. The first insertion hole 13 can also be used for inserting the insert block 61. The bolt shank 14 has a columnar structure with a uniform diameter to ensure that the bolt 1 can be fully connected to the extension nut 4, reducing gaps. The placement groove 11 is designed for installing the compression collar 7.

[0046] In a specific embodiment, such as Figure 5 A compression collar 7 is installed in the placement groove 11. The compression collar 7 is an elastic structure. The purpose of the compression collar 7 is firstly to prevent concrete grout from flowing into the grouting hole groove from the gap between the extended nut 4 and the upper end of the bolt 1, which would prevent the bolt 1 from being pulled out of the extended nut 4 and affect the use of the grouting hole groove. The compression collar 7 can also make the connection between the extended nut 4 and the bolt 1 tighter, making it less likely for the concrete grout to push the bolt 1 out of the extended nut 4. The compression collar 7 can also scrape out some of the concrete grout that accidentally flows into the grouting hole groove. At the same time, because the extended nut 4 and the bolt 1 are a closed structure with the end cap 6 installed, air does not easily flow between the extended nut 4 and the bolt 1. This makes it difficult for concrete to dry and solidify even if it flows into the gap between the extended nut 4 and the bolt 1. In this way, the compression collar 7 can scrape out the concrete grout.

[0047] In a specific embodiment, such as Figure 6The connector 3 includes a rebar mounting hole 31, a cylindrical insert 32, a second insertion hole 33, an adapter rod 34, and a connector 35. The adapter rod 34 has a second insertion hole 33 inside, and the outer end of the adapter rod 34 is screwed into the round hole 41. One end of the cylindrical insert 32 is screwed into the second insertion hole 33, and the other end of the cylindrical insert 32 is mounted on the surface of the connector 35. The connector 35 has a rebar mounting hole 31, and one end of the limiting rebar 5 is inserted into the rebar mounting hole 31. The diameter of the adapter rod 34 will always be the same as the diameter of the round hole 41. Taking advantage of this feature, the adapter rod 34 is installed in the round hole 41. Moreover, the diameter of the cylindrical insert rod 32 is the same as the diameter of the insertion hole 33. Thus, it is only necessary to make a connector 35 with a reinforcing bar installation hole 31 that matches the diameter of the limiting reinforcing bar 5. Since the diameter of the limiting reinforcing bar 5 is mostly fixed, such as 8mm or 6mm, it is only necessary to weld the made connector 35 to the cylindrical insert rod 32, then insert one end of the limiting reinforcing bar 5 into the reinforcing bar installation hole 31 and fix it by welding. This allows the limiting reinforcing bar 5 to be connected to the extension nut 4. By changing the cylindrical insert rod 32 and the connector 35, the extension nut 4 can be connected to more limiting reinforcing bars 5 with different diameters, so that the extension nut 4 will not easily tilt in different pouring environments.

[0048] In a specific embodiment, such as Figure 7 The end cap 6 includes an insert block 61, an arc-shaped plate 62, and a disc 63. The insert block 61 is installed at the bottom of the disc 63 and is inserted into the top of the bolt 1. The arc-shaped plate 62 is installed at the bottom of the disc 63 and is inserted into the top of the extension nut 4. The arc-shaped plate 62 is located outside the insert block 61. The insert block 61 and the arc-shaped plate 62 are used to install the entire end cap 6 on the upper ends of the bolt 1 and the extension nut 4. The arc-shaped plate 62 is designed to prevent splashed or excess concrete slurry from entering the gap between the extension nut 4 and the bolt 1.

[0049] In a specific embodiment, such as Figure 8 The middle section of the limiting steel bar 5 is bent at 180°, and one end of the limiting steel bar 5 is welded and fixed to the inner steel bar. By bending the limiting steel bar 5 at 180°, the extended nut 4 can be connected to the inner steel bar through the limiting steel bar 5.

[0050] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A pre-buried panel void detection grouting hole, characterized in that, The utility model provides a kind of reinforced concrete structure, including: Lengthened nut (4), bolt (1) is inserted inside, the lengthened nut (4) is formed grouting hole slot inside; Several connecting heads (3), one end is inserted in the side wall of the lengthened nut (4); Limiting steel bar (5), one end is inserted in the other end inside of the connecting head (3), the other end of the limiting steel bar (5) is connected together with inner steel bar; Concrete panel (2) is arranged behind the lengthened nut (4), and the inner steel bar is arranged in the concrete panel (2); The lengthened nut (4) and bolt (1) top insert end cap (6).

2. The pre-embedded panel void detection grout hole of claim 1, wherein, The lengthened nut (4) includes: Rod body (44), inside hollow structure, the lower portion of the hollow structure is provided with internal thread (42); Annular slot (43) is opened in the top of the rod body (44); Several round holes (41) are opened on the outer wall of the rod body (44), and the connecting head (3) one end is screwed in the round hole (41).

3. The pre-embedded panel void detection grout hole of claim 1, wherein, The bolt (1) includes: Bolt rod (14), the upper surface is opened with insertion hole one (13); Placement slot (11) is opened in the bolt rod (14); External thread structure (12) is arranged at the lower end of the bolt rod (14), and the external thread structure (12) is arranged below the placement slot (11).

4. The pre-embedded panel void detection grout hole of claim 3, wherein, The placement slot (11) is installed with extrusion sleeve ring (7).

5. The pre-embedded panel void detection grout hole of claim 2, wherein, The connecting head (3) includes: Adaptation rod (34), inside opening has insertion hole two (33), and the adaptation rod (34) outer end is screwed and installed in the round hole (41); Cylindrical insertion rod (32), one end is screwed and installed in the insertion hole two (33), and the other end surface of the cylindrical insertion rod (32) is installed with connecting piece (35), the connecting piece (35) is opened with steel bar mounting hole (31), one end of the limiting steel bar (5) is inserted in the steel bar mounting hole (31).

6. The pre-embedded panel void detection grout hole of claim 1, wherein, The end cap (6) includes: Disc (63), bottom installation has insertion block (61), and the insertion block (61) is inserted in the top of the bolt (1); Arc plate (62) is installed in the bottom of the disc (63), and the arc plate (62) is inserted in the top of the lengthened nut (4), and the arc plate (62) is arranged outside the insertion block (61).

7. The pre-embedded panel void detection grout hole of claim 1, wherein, The middle segment of the limiting steel bar (5) is bent by 180 degrees, and one end of the limiting steel bar (5) is welded and fixed with the inner steel bar.

Images