Shaped post-grouting guide pipe and reinforcement cage connecting device

By designing a rear grouting conduit and steel cage connection device including steel "O" ring, steel "U" ring, steel connecting plate, steel inner ring and rubber ring, the problem of easy falling off during grouting is solved, and the stability of the conduit and welding of the conduit is achieved.

CN222948996UActive Publication Date: 2025-06-06CCCC FOURTH HIGHWAY ENG CO LTD
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Patent Information

Application Number
CN202421556545.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-03
Publication Date
2025-06-06
Estimated Expiration
2034-07-03

AI Technical Summary

Technical Problem

In the existing split grouting process, the post-grouting conduit is prone to wire-cracking due to pressure and touch during concrete pouring, which leads to wire-cracking, then fall off, causing the conduit to deviate, rupture or deformation of the pipe body, affecting the normal progress of grouting work.

Method used

A fixed grouting conduit and steel cage connection device is designed, including steel "O" rings, steel "U" snap rings, steel connecting plates, steel inner rings and rubber rings. Through the combination and welding of these components, the close connection between the conduit and steel cage is achieved to prevent falling off.

Benefits of technology

This connection device not only realizes the stable fixation of the conduit and prevents falling off, but also realizes the function of installation and pre-fixation, making welding easier and more efficient, and adds welding joints to facilitate welding and fixing, improving overall stability and convenience.

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Abstract

The utility model discloses a shaped post-grouting guide pipe and reinforcement cage connecting device which comprises a steel O-shaped ring, a steel U-shaped clamping ring is arranged on the right side of the steel O-shaped ring, and a fastening assembly which is stably connected and capable of preventing sliding is arranged in the steel O-shaped ring. According to the shaping connecting device for the post-grouting guide pipe and the reinforcement cage, the steel O-shaped ring, the steel connecting plate, the steel U-shaped clamping ring, the steel inner ring and the rubber edge ring are arranged, when the shaping connecting device is used, the rubber edge ring in the steel inner ring is attached to the outer wall of the guide pipe, friction force is increased, the position of the guide pipe is relatively stable, and when vibration occurs in the grouting process, the rubber edge ring is prevented from falling off. A certain buffering area can be provided, the steel U-shaped clamping ring is attached to a main reinforcement of the reinforcement cage and fixed through welding, the function of conveniently fixing the guide pipe and preventing the guide pipe from falling off is achieved, and the problem that the device does not have the function of conveniently fixing the guide pipe and preventing the guide pipe from falling off is solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of connection devices, in particular to a connection device for a finalized post-grouting conduit and a steel cage. Background Art

[0002] Split grouting is a widely used method for reinforcing soft soil layers. It uses a high-pressure grouting process to inject cement or chemical slurry into the soil layer through a post-grouting conduit. During the grouting process, the slurry at the outlet of the grouting pipe exerts additional compressive stress on the surrounding strata, causing shear cracks in the soil. The slurry splits along the cracks from the low-strength areas of the soil to the high-strength areas. The slurry split into the soil forms a network or skeleton to reinforce the soil to improve the properties of the soil layer.

[0003] In the current splitting grouting process, the post-grouting conduit is usually fixed in the steel cage and fixed with ties at the grouting site without a connecting device. The quality of ties varies among different grouting masters. As the pressure increases during concrete pouring, the ties in the post-grouting conduit are prone to breakage after being compressed and touched, and may easily fall off, causing the conduit to be displaced, ruptured by collision or deformation of the pipe body, which in turn causes blockage and affects the normal grouting work. It does not have the function of fixing the conduit to prevent it from falling off.

[0004] Now, a new type of standardized post-grouting conduit and steel cage connection device is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a device for connecting a grouting conduit and a steel cage after being shaped, so as to solve the problem that the above-mentioned background technology does not have the function of conveniently fixing the conduit and preventing it from falling off.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for connecting the grouting conduit and the steel cage after finalization, comprising a steel "O"-ring, a steel "U"-shaped clamping ring is arranged on the right side of the steel "O"-ring, a steel connecting plate is welded between one side of the steel "O"-ring and one side of the steel "U"-shaped clamping ring, and a fastening component for stable connection and anti-slip is arranged inside the steel "O"-ring.

[0007] The fastening assembly comprises a steel inner ring, which is arranged inside a steel "O"-shaped ring, and a plurality of groups of rubber ridges are glued to the inner wall of the steel inner ring.

[0008] Preferably, the outer diameter of the steel inner ring is consistent with the inner diameter of the steel "O" ring, and the steel "O" ring and the steel inner ring are fixedly connected.

[0009] Preferably, the top end of the steel inner ring is flush with the top end of the steel "O" ring, and the bottom end of the steel inner ring is flush with the bottom end of the steel "O" ring.

[0010] Preferably, the steel "O"-ring and the steel inner ring are made of the same material, and the rubber ridges are arranged at equal intervals.

[0011] Preferably, a second arc-shaped strong magnet is fixedly connected at the middle position of one side of the steel "U"-shaped clamping ring, a first arc-shaped strong magnet is arranged above the second arc-shaped strong magnet, and a third arc-shaped strong magnet is arranged below the second arc-shaped strong magnet.

[0012] Preferably, the first arc-shaped strong magnet, the second arc-shaped strong magnet and the third arc-shaped strong magnet have the same shape and size, and the side surfaces of the first arc-shaped strong magnet, the second arc-shaped strong magnet and the third arc-shaped strong magnet have the same curvature as the side surfaces of the steel "U"-shaped clamping ring.

[0013] Preferably, a plurality of groups of comb-shaped teeth are respectively provided at the front and rear ends of one side of the steel "O"-ring, and a welding point reserved groove is provided between one ends of two groups of the comb-shaped teeth.

[0014] Preferably, the comb-shaped teeth are arranged at equal intervals, and the distance between the upper and lower ends of the welding spot reserved groove is greater than the distance between the upper and lower ends of the comb-shaped teeth.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the device for connecting the grouting conduit and the steel cage after finalization not only realizes the function of fixing the conduit to prevent it from falling off, but also realizes the function of pre-fixing during installation, and also realizes the function of increasing welding points to facilitate welding and fixing;

[0016] (1) A steel "O"-shaped ring, a steel connecting plate, a steel "U"-shaped clamping ring, a steel inner ring and a rubber rim are provided. When in use, according to the size of the rear grouting conduit, a steel "O"-shaped ring with an inner diameter slightly larger than the outer diameter of the conduit and smaller than the connecting bolts between the conduit sections is selected, and the ring is inserted along one end of the rear grouting conduit. The rubber rim inside the steel inner ring fits the outer wall of the conduit to increase the friction force, making its position relatively stable, and can provide a certain buffer space when vibration occurs during the grouting process. The steel "U"-shaped clamping ring fits on the main reinforcement of the steel cage and is fixed by welding. The steel "U"-shaped clamping ring fixes the steel "O"-shaped ring through the steel connecting plate. The three constitute a set of fixing parts, which tightly connect the rear grouting conduit and the main reinforcement of the steel cage, so that its position is fixed and it is not easy to fall off, thereby realizing the function of facilitating the fixing of the conduit to prevent it from falling off;

[0017] (2) By providing the first arc-shaped strong magnet, the second arc-shaped strong magnet and the third arc-shaped strong magnet, when in use, the steel "U"-shaped clamping ring must first be attached to the main reinforcement of the steel cage and then welded and fixed. As the steel "U"-shaped clamping ring is attached to the side of the main reinforcement of the steel cage, the first arc-shaped strong magnet, the second arc-shaped strong magnet and the third arc-shaped strong magnet on the side of the main reinforcement of the steel cage facing the main reinforcement of the steel cage are firmly adsorbed on the side of the main reinforcement, so that the position of the steel "U"-shaped clamping ring is fixed. There is no need to fix it by hand during subsequent welding, and welding is easier and more efficient, realizing the function of pre-fixing during installation;

[0018] (3) By providing comb-shaped teeth and welding point reserved grooves, when in use, as the steel "U"-shaped clamp ring is attached to the side of the main reinforcement of the steel cage, the comb-shaped teeth are selected as the connection for spot welding during welding. Multiple sets of welding point reserved grooves are convenient for welding masters to flexibly select and increase or decrease the position of welding points, which is more convenient in operation and realizes the function of increasing welding points to facilitate welding and fixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the utility model in a top view;

[0021] Figure 3 This is a schematic diagram of the front cross-sectional structure of a steel "O"-shaped ring of the utility model;

[0022] Figure 4 It is a side structural schematic diagram of the utility model.

[0023] In the figure: 1. Steel "O" ring; 2. Steel connecting plate; 3. Steel "U" shaped snap ring; 4. Steel inner ring; 5. Rubber edge ring; 6. First arc-shaped strong magnet; 7. Second arc-shaped strong magnet; 8. Third arc-shaped strong magnet; 9. Comb-shaped teeth; 10. Welding point reserved groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0025] Example 1: Please refer to Figure 1-4The device for connecting the grouting conduit and the steel cage after finalization comprises a steel "O"-shaped ring 1, a steel "U"-shaped clamping ring 3 is arranged on the right side of the steel "O"-shaped ring 1, a steel connecting plate 2 is welded between one side of the steel "O"-shaped ring 1 and one side of the steel "U"-shaped clamping ring 3, and a fastening component for stable connection and anti-slip is arranged inside the steel "O"-shaped ring 1;

[0026] See also Figure 1-4 After the finalization, the grouting conduit and the steel cage connection device also includes a fastening assembly, which includes a steel inner ring 4, which is arranged inside the steel "O" ring 1, and a plurality of rubber rims 5 are glued to the inner wall of the steel inner ring 4;

[0027] The outer diameter of the steel inner ring 4 is consistent with the inner diameter of the steel "O" ring 1, the steel "O" ring 1 and the steel inner ring 4 are fixedly connected, the top of the steel inner ring 4 is flush with the top of the steel "O" ring 1, the bottom of the steel inner ring 4 is flush with the bottom of the steel "O" ring 1, the steel "O" ring 1 and the steel inner ring 4 are made of the same material, the rubber ridges 5 are arranged at equal intervals, and the connection is more stable and firm;

[0028] Specifically, Figure 2 and Figure 3 As shown, the rubber rim 5 in the steel inner ring 4 fits the outer wall of the conduit to increase the friction force, making its position relatively stable, and can provide a certain buffer zone when vibration occurs during the grouting process. The steel "U"-shaped clamp ring 3 fits on the main reinforcement of the steel cage and is fixed by welding. The steel "U"-shaped clamp ring 3 fixes the steel "O"-shaped ring 1 through the steel connecting plate 2. The three constitute a set of fixing parts.

[0029] Embodiment 2: A second arc-shaped strong magnet 7 is fixedly connected to the middle position of one side of the steel "U"-shaped snap ring 3, a first arc-shaped strong magnet 6 is arranged above the second arc-shaped strong magnet 7, and a third arc-shaped strong magnet 8 is arranged below the second arc-shaped strong magnet 7. The first arc-shaped strong magnet 6, the second arc-shaped strong magnet 7, and the third arc-shaped strong magnet 8 have the same shape and size, and the side surfaces of the first arc-shaped strong magnet 6, the second arc-shaped strong magnet 7, and the third arc-shaped strong magnet 8 have the same curvature as the side surfaces of the steel "U"-shaped snap ring 3. Pre-fixation is achieved by magnetic attraction, which is more convenient during welding;

[0030] Specifically, Figure 1 and Figure 4 As shown, on the side of the steel "U"-shaped clamping ring 3 facing the main reinforcement of the steel cage, three groups of strong magnets, namely the first arc-shaped strong magnet 6, the second arc-shaped strong magnet 7 and the third arc-shaped strong magnet 8, are firmly adsorbed on the side of the main reinforcement, so that the position of the steel "U"-shaped clamping ring 3 is fixed, and there is no need to hold it by hand during subsequent welding.

[0031] Embodiment 3: A plurality of groups of comb teeth 9 are respectively arranged at the front and rear ends of one side of a steel "O"-shaped ring 1, and a welding spot reserved groove 10 is arranged between one ends of two groups of comb teeth 9. The comb teeth 9 are arranged at equal intervals, and the distance between the upper and lower ends of the welding spot reserved groove 10 is greater than the distance between the upper and lower ends of the comb teeth 9. There are many selectable positions for welding spots, and welding is more flexible;

[0032] Specifically, Figure 2 and Figure 4 As shown, the comb-shaped teeth 9 are selected as the connection for spot welding, and multiple groups of welding point reserved grooves 10 are convenient for the welding master to flexibly select and increase or decrease the welding point positions, which is more convenient in operation.

[0033] Working principle: When the utility model is in use, first, according to the size of the rear grouting conduit, select a steel "O"-shaped ring 1 with an inner diameter slightly larger than the outer diameter of the conduit and smaller than the connecting bolts between the conduit sections, and insert it along one end of the rear grouting conduit. The rubber edge ring 5 in the steel inner ring 4 fits the outer wall of the conduit to increase the friction force, making its position relatively stable, and can provide a certain buffer zone when vibration occurs during the grouting process. The steel "U"-shaped clamping ring 3 fits on the main reinforcement of the steel cage and is fixed by welding. The steel "U"-shaped clamping ring 3 fixes the steel "O"-shaped ring 1 through the steel connecting plate 2. The three constitute a set of fixing parts, which tightly connect the rear grouting conduit and the main reinforcement of the steel cage, so that its position is fixed and it is not easy to fall off. Since the steel "U"-shaped clamp 3 must first be attached to the main reinforcement of the steel cage and then welded and fixed, as the steel "U"-shaped clamp 3 is attached to the side of the main reinforcement of the steel cage, the first arc-shaped strong magnet 6, the second arc-shaped strong magnet 7 and the third arc-shaped strong magnet 8 on the side of the steel "U"-shaped clamp 3 facing the main reinforcement of the steel cage are firmly adsorbed on the side of the main reinforcement, so that the position of the steel "U"-shaped clamp 3 is fixed, and there is no need to fix it by hand during subsequent welding, making welding easier and more efficient. As the steel "U"-shaped clamp 3 is attached to the side of the main reinforcement of the steel cage, the comb-shaped teeth 9 are selected as the connection for spot welding during welding, and multiple groups of welding point reserved grooves 10 facilitate the welding master to flexibly select and increase or decrease the welding point position, which is more convenient in operation.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A device for connecting a grouting conduit and a steel cage after being shaped, comprising a steel "O" ring (1), characterized in that: A steel "U"-shaped snap ring (3) is arranged on the right side of the steel "O"-shaped ring (1), a steel connecting plate (2) is welded between one side of the steel "O"-shaped ring (1) and one side of the steel "U"-shaped snap ring (3), and a fastening component for stable connection and anti-slip is arranged inside the steel "O"-shaped ring (1); The fastening assembly comprises a steel inner ring (4), wherein the steel inner ring (4) is arranged inside a steel "O"-shaped ring (1), and a plurality of groups of rubber ridges (5) are glued to the inner wall of the steel inner ring (4).

2. The device for connecting a grouting conduit and a steel cage after being shaped according to claim 1 is characterized in that: The outer diameter of the steel inner ring (4) is consistent with the inner diameter of the steel "O"-shaped ring (1), and the steel "O"-shaped ring (1) and the steel inner ring (4) are fixedly connected.

3. The device for connecting a grouting conduit and a steel cage after being shaped according to claim 1 is characterized in that: The top end of the steel inner ring (4) is flush with the top end of the steel "O" ring (1), and the bottom end of the steel inner ring (4) is flush with the bottom end of the steel "O" ring (1).

4. The device for connecting a grouting conduit and a steel cage after being shaped according to claim 1, characterized in that: The steel "O"-shaped ring (1) and the steel inner ring (4) are made of the same material, and the rubber rims (5) are arranged at equal intervals.

5. The device for connecting a grouting conduit and a steel cage after being shaped according to claim 1, characterized in that: A second arc-shaped strong magnet (7) is fixedly connected at the middle position of one side of the steel "U"-shaped clamping ring (3), a first arc-shaped strong magnet (6) is arranged above the second arc-shaped strong magnet (7), and a third arc-shaped strong magnet (8) is arranged below the second arc-shaped strong magnet (7).

6. The device for connecting the grouting conduit and the steel cage after being finalized according to claim 5 is characterized in that: The first arc-shaped strong magnet (6), the second arc-shaped strong magnet (7), and the third arc-shaped strong magnet (8) have the same shape and size, and the side surfaces of the first arc-shaped strong magnet (6), the second arc-shaped strong magnet (7), and the third arc-shaped strong magnet (8) have the same curvature as the side surfaces of the steel "U"-shaped clamping ring (3).

7. The device for connecting a grouting conduit and a steel cage after being shaped according to claim 1, characterized in that: A plurality of groups of comb-shaped teeth (9) are respectively arranged at the front and rear ends of one side of the steel "O"-shaped ring (1), and a welding point reserved groove (10) is arranged between one end of two groups of the comb-shaped teeth (9).

8. The device for connecting a grouting conduit and a steel cage after being shaped according to claim 7, characterized in that: The comb-shaped teeth (9) are arranged at equal intervals, and the distance between the upper and lower ends of the welding spot reserved groove (10) is greater than the distance between the upper and lower ends of the comb-shaped teeth (9).