Device for fixing embedded grouting pipe

By designing a device that includes a bottom cross rod, a top support rod and a grouting pipe fixing device, the problem that traditional trusses cannot fix the grouting pipe vertically is solved, and the stable embedding of the grouting pipe and high-quality construction of the anti-seepage wall is achieved.

CN223048042UActive Publication Date: 2025-07-01SINOHYDRO FOUND ENG
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422307135.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-20
Publication Date
2025-07-01
Estimated Expiration
2034-09-20

AI Technical Summary

Technical Problem

During the pre-embedding of grouting pipes, traditional trusses cannot fix the grouting pipes vertically, causing the grouting pipes to float, affecting the construction quality and structural stability of the anti-seepage wall.

Method used

A device for fixing the embedded grouting pipe is designed, including the bottom cross rod, the top support rod, the grouting pipe fixing device, etc., and the vertical fixation and horizontal support of the grouting pipe are achieved through the coordination of the threaded meshing transmission structure and the clamping block.

Benefits of technology

It effectively avoids the vertical floating phenomenon of grouting pipes, ensures the stable pre-embedding of grouting pipes, improves the grouting quality of the anti-seepage wall, and maintains the safety and stability of the building structure.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223048042U_ABST
    Figure CN223048042U_ABST
Patent Text Reader

Abstract

The utility model provides a device for fixing a pre-embedded grouting pipe, which relates to the field of pre-embedded grouting pipe engineering and comprises a grouting pipe fixing device. The grouting pipe fixing device comprises a support disc, a pressing disc, a clamping block, a mounting base, a traction spring, a supporting guide column and a rubber pressing pad. The top of the support disc is connected with a mounting seat through bolts, the support disc is slidably connected to the outer side face of the top supporting rod, and a supporting guide column is welded to the inner side face of the support disc. One end of the traction spring is welded and connected with a mounting seat, the other end of the traction spring is welded and connected with a clamping block, and the clamping block is bonded with the rubber pressure pad; a pressure plate is screwed at the top end of the mounting seat; through the arrangement of the pressing disc, the mounting base and the clamping block, the grouting pipe is extruded, clamped and fixed, the phenomenon that the grouting pipe body vertically floats upwards is avoided, and the problem that the grouting pipe floats upwards to damage the construction quality of an anti-seepage wall due to the fact that the grouting pipe cannot be vertically fixed in a traditional pre-buried grouting pipe project is solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model belongs to the field of embedded grouting pipe engineering, and more specifically, particularly relates to a device for fixing an embedded grouting pipe. Background Art

[0002] A grouting pipe is a construction pipe mainly used for pre-embedding concrete. It can inject solidifying materials such as cement and lime into a certain range of foundation rock and soil to fill cracks and pores in the rock and soil, prevent foundation leakage, and improve the integrity, strength, and stiffness of the rock and soil. Currently, during the process of pre-embedding the grouting pipe, a truss made of Φ16 threaded steel bars welded together is usually used for positioning and support. However, when the grouting pipe is injected into the inner hole groove of the cut-off wall with concrete, since the structure of the truss itself can only horizontally support and limit the top of the grouting pipe, and the truss does not have measures for fixing vertical displacement, the grouting pipe will float up as the concrete surface rapidly rises. The floating of the grouting pipe will also cause the formation of a cement slurry layer in the concrete. If the slurry layer of the concrete is too thick, it will lead to a decline in the strength performance of the cut-off wall structure, seriously damaging the safety and stability of the building structure. Content of the Utility Model

[0003] In order to solve the above technical problems, the utility model provides a device for fixing an embedded grouting pipe to solve the problem that in traditional embedded grouting pipe projects, the grouting pipe cannot be vertically fixed, resulting in the floating of the grouting pipe and damaging the construction quality of the cut-off wall.

[0004] The utility model provides a device for fixing an embedded grouting pipe, including a bottom cross bar and a top support bar; vertical rods are welded to both the left end and the right end of the bottom cross bar, a connecting rod is welded to the outer side surface of the vertical rod, and a support diagonal rod is welded to the outer side surface of the connecting rod; it also includes a grouting pipe body, a grouting pipe fixing device, and a top support bar; a positioning frame is slidably connected to the outer side surface of the grouting pipe body, and the positioning frame is slidably connected to the bottom cross bar; the grouting pipe fixing device includes a support disc, a pressure disc, a clamping block, a mounting seat, a pulling spring, a support guide post, and a rubber pressure pad; the top of the support disc is bolted to the mounting seat, the support disc is slidably connected to the outer side surface of the top support bar, and a support guide post is welded to the inner side surface of the support disc; one end of the pulling spring is welded to the mounting seat, the other end of the pulling spring is welded to the clamping block, and the clamping block is adhesively bonded to the rubber pressure pad; a pressure disc is screwed to the top end of the mounting seat; vertical rods are welded to both the left end and the right end of the top support bar, and a support disc is welded to the outer side surface of the top support bar.

[0005] In at least some embodiments, the number of the clamping blocks is six groups, the clamping blocks are distributed in a circular array around the vertical central axis of the mounting seat, a circular hole groove is provided at a position near the bottom end of the rear side surface of each group of clamping blocks, and the upper side surfaces of the clamping blocks are all inclined plane structures.

[0006] In at least some embodiments, the mounting base is a cylindrical structure that penetrates vertically. The outer side surface of the cylinder of the mounting base is provided with threads, and the inner side surface of the cylinder structure of the mounting base is provided with six groups of grooves. The grooves of the mounting base are distributed in a circular array around the vertical central axis of the mounting base. Each group of grooves at the bottom of each mounting base is provided with a circular hole. A support guide post is welded to the bottom of the circular hole. The clamping block is embedded inside the groove of the mounting base, and the support guide post is embedded in the circular hole of the clamping block.

[0007] In at least some embodiments, a through hole that penetrates vertically is provided at the central part of the pressure plate. A threaded structure is provided at a position near the bottom end on the inner side surface of the through hole of the pressure plate. The threads on the inner side surface of the through hole of the pressure plate are meshed and connected to the threaded structure near the top end on the outer side surface of the mounting base.

[0008] In at least some embodiments, a convex post is provided at the central position on the upper side surface of the support disc. A through hole that penetrates vertically is provided at the central position of the convex post. The grouting pipe body is inserted through the through hole of the convex post of the support disc.

[0009] In at least some embodiments, a through hole that penetrates vertically is provided at the central part of the positioning frame. The grouting pipe body is inserted through the through hole at the central part of the positioning frame. The through hole of the positioning frame is vertically opposite to the through hole of the support disc.

[0010] Compared with the prior art, the present utility model has the following beneficial effects:

[0011] 1. In the present utility model, through the threaded meshing transmission structure formed by the threads on the inner side surface of the through hole of the pressure plate and the threads on the outer side surface of the mounting base, the pressure plate is synchronously moved downward to push the inclined surface structures of the six clamping blocks, so that the six clamping blocks move horizontally towards the center along the support guide posts, realizing the extrusion and clamping fixation of the outer side surface of the grouting pipe body, effectively avoiding the occurrence of the vertical floating phenomenon of the grouting pipe body, and enabling the stable grouting and embedding of the grouting pipe body, ensuring the grouting quality of the impervious wall.

[0012] 2. In the present utility model, by using the vertically opposite arrangement structure of the through hole at the central position of the positioning frame and the through hole at the central position of the convex post of the support disc, the positioning frame and the support disc respectively horizontally position and support the bottom and top of the grouting pipe body, so that the upper and lower parts of the grouting pipe body always remain vertical, the horizontal support of the grouting pipe body is more stable, and the grouting pipe body is prevented from bending and tilting. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural view of the present utility model.

[0014] Figure 2 is a schematic view of the bottom and side structure of the present utility model.

[0015] Figure 3 is a schematic left view of the present utility model.

[0016] Figure 4 It is a schematic structural diagram of the grouting pipe fixing device of the present utility model.

[0017] Figure 5 It is a schematic top view structural diagram of the grouting pipe fixing device of the present utility model

[0018] Figure 6 It is a schematic top view sectional structural diagram of the grouting pipe fixing device of the present utility model.

[0019] Figure 7 It is a schematic sectional structural diagram of the grouting pipe fixing device of the present utility model.

[0020] Reference numerals:

[0021] 1. Bottom cross bar;

[0022] 2. Positioning frame;

[0023] 3. Grouting pipe body;

[0024] 4. Vertical rod;

[0025] 5. Support diagonal rod;

[0026] 6. Connecting rod;

[0027] 7. Grouting pipe fixing device; 701. Bracket plate; 702. Pressure plate; 703. Clamping block; 704. Mounting seat; 705. Tension spring; 706. Support guide post; 707. Rubber pressure pad;

[0028] 8. Top support rod. Detailed implementation manners

[0029] The following further describes in detail the implementation manners of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0030] Such as Figures 1-7As shown in the figure, the utility model provides a device for fixing and embedding a grouting pipe, which includes a bottom cross bar 1 and a top support rod 8; vertical rods 4 are welded to both the left end and the right end of the bottom cross bar 1, a connecting rod 6 is welded to the outer side surface of the vertical rod 4, and a support diagonal rod 5 is welded to the outer side surface of the connecting rod 6; it also includes a grouting pipe body 3, a grouting pipe fixing device 7 and a top support rod 8; a positioning frame 2 is slidably connected to the outer side surface of the grouting pipe body 3, and the positioning frame 2 is slidably connected to the bottom cross bar 1; the grouting pipe fixing device 7 includes a support disc 701, a pressure disc 702, a clamping block 703, a mounting seat 704, a pulling spring 705, a support guide post 706 and a rubber pressure pad 707; the top of the support disc 701 is bolted to the mounting seat 704, the support disc 701 is slidably connected to the outer side surface of the top support rod 8, and a support guide post 706 is welded to the inner side surface of the support disc 701; one end of the pulling spring 705 is welded to the mounting seat 704, the other end of the pulling spring 705 is welded to the clamping block 703, and the clamping block 703 is adhesively bonded to the rubber pressure pad 707; a pressure disc 702 is screwed to the top end of the mounting seat 704; vertical rods 4 are welded to both the left end and the right end of the top support rod 8, and a support disc 701 is welded to the outer side surface of the top support rod 8.

[0031] In the embodiment of the present disclosure, the number of the clamping blocks 703 is six groups, the clamping blocks 703 are distributed in a circular array around the vertical central axis of the mounting seat 704, a circular hole groove is provided at a position near the bottom end on the rear side surface of each group of clamping blocks 703, the upper side surfaces of the clamping blocks 703 are all inclined plane structures, the inclined plane structures of the clamping blocks 703 are pushed by the lower side surface of the pressure disc 702, so that the six groups of clamping blocks 703 move horizontally towards the center synchronously, and the rubber pressure pad 707 adhesively bonded to the clamping blocks 703 is extruded and fitted to the outer surface of the grouting pipe body 3, so as to complete the centering clamping and fixing of the grouting pipe body 3 by the clamping blocks 703.

[0032] In the embodiment of the present disclosure, the mounting seat 704 is a cylinder structure with upper and lower through holes, threads are provided on the outer side surface of the cylinder of the mounting seat 704, six groups of grooves are provided on the inner side surface of the cylinder structure of the mounting seat 704, the grooves of the mounting seat 704 are distributed in a circular array around the vertical central axis of the mounting seat 704, a circular hole groove is provided at the bottom of each groove of each group of the mounting seat 704, a support guide post 706 is welded to the bottom of the circular hole groove, the clamping block 703 is embedded in the groove of the mounting seat 704, the support guide post 706 is embedded in the circular hole groove of the clamping block 703, and the support guide post 706 cooperates with the groove of the mounting seat 704 to support the clamping block 703, so that the clamping block 703 slides directionally along the inner wall of the groove of the mounting seat 704 and the support guide post 706, ensuring the stable clamping of the grouting pipe body 3 by the clamping block 703.

[0033] In the embodiment of the present disclosure, a through hole penetrating up and down is provided at the central part of the pressure plate 702. A threaded structure is provided at a position near the bottom end on the inner side surface of the through hole of the pressure plate 702. The threaded structure on the inner side surface of the through hole of the pressure plate 702 is meshed and connected to the threaded structure at the position near the top end on the outer side surface of the mounting seat 704. The pressure plate 702 can rotate vertically up and down along the threaded structure of the mounting seat 704. The pressure plate 702 pushes six groups of clamping blocks 703 to synchronously squeeze and clamp the grouting pipe body 3 for fixation.

[0034] In the embodiment of the present disclosure, a convex column is provided at the central position on the upper side surface of the support plate 701. A through hole penetrating up and down is provided at the central position of the convex column. The grouting pipe body 3 is inserted through the through hole of the convex column of the support plate 701, so that the support plate 701 horizontally supports the top of the grouting pipe body 3.

[0035] In the embodiment of the present disclosure, a through hole penetrating up and down is provided at the central part of the positioning frame 2. The grouting pipe body 3 is inserted through the through hole at the central part of the positioning frame 2. The through hole of the positioning frame 2 is vertically opposite to the through hole of the support plate 701. The positioning frame 2 cooperates with the support plate 701 to vertically position and support the grouting pipe body 3, keeping the grouting pipe body 3 in a vertical posture and preventing the grouting pipe body 3 from bending and tilting when it is inside the impervious wall.

[0036] The specific usage mode and function of this embodiment:

[0037] When the present utility model is fixing the grouting pipe body 3, the grouting pipe body 3 is inserted through the through hole of the convex column of the support plate 701 and the through hole of the positioning frame 2 from top to bottom in sequence. Then, the pressure plate 702 is manually rotated. Since the threaded structure on the inner side surface of the through hole of the pressure plate 702 is meshed and connected to the threaded structure on the outer side surface at the top end of the mounting seat 704, the pressure plate 702 moves vertically downward along the threaded structure on the outer side surface of the mounting seat 704 during the rotation process. At this time, the pressure plate 702 synchronously pushes the inclined surface structure on the upper side surface of the clamping block 703. The six groups of clamping blocks 703 overcome the elastic tension of the pulling spring 705 and synchronously move along the inner wall of the groove of the mounting seat 704 and the outer side surface of the support guide post 706 towards the vertical central axis of the mounting seat 704 until the rubber gaskets 707 bonded to the six groups of clamping blocks 703 closely fit on the outer side surface of the grouting pipe body 3. The six groups of clamping blocks 703 perform centripetal clamping and fixation on the grouting pipe body 3, preventing the grouting pipe body 3 from floating up when concrete is poured into the impervious wall hole slot. When the pre-embedded grouting of the grouting pipe body 3 is completed, the pressure plate 702 is reversely rotated. The threaded structure on the outer side surface of the pressure plate 702 moves vertically upward. At this time, the pressure plate 702 disengages from the inclined surface structure of the clamping block 703. The clamping block 703 retracts into the groove of the mounting seat 704 under the elastic tension of the pulling spring 705, and the six groups of clamping blocks 703 release the grouting pipe body 3.

[0038] The installation methods, connection methods, or setting methods of all the above components are common mechanical methods, such as welding, threaded connection, screw connection, etc. Moreover, the specific structures, models, and coefficient indicators of all its components are its own technologies, and any implementation that can achieve its beneficial effects is acceptable. The grouting pipe body 3 used above is a common device on the market. When purchased and used, it only needs to be connected according to the user manual purchased together to be used, so it will not be elaborated here.

[0039] The technical solution of the present utility model is not limited to the scope of the embodiments of the present utility model. The technical content not described in detail in the present utility model is well-known technology.

Claims

1. A device for fixing a pre-buried grouting pipe, comprising a bottom cross bar (1) and a top support bar (8); the left end and the right end of the bottom cross bar (1) are both welded to a vertical bar (4), the outer side surface of the vertical bar (4) is welded to a connecting bar (6), and the outer side surface of the connecting bar (6) is welded to a supporting diagonal bar (5); characterized in that: It also includes a grouting pipe body (3), a grouting pipe fixing device (7) and a top support rod (8); the outer side surface of the grouting pipe body (3) is slidably connected to a positioning frame (2), and the positioning frame (2) is slidably connected to the bottom cross bar (1); the grouting pipe fixing device (7) includes a support plate (701), a pressure plate (702), a clamping block (703), a mounting seat (704), a tension spring (705), a support guide column (706) and a rubber pressure pad (707); the top of the support plate (701) is connected to the mounting seat (704) by bolts, and the support plate (701) The support plate (701) is welded to the inner side surface of the support plate (701) and is slidably connected to the outer side surface of the top support rod (8); one end of the pulling spring (705) is welded to the mounting seat (704); the other end of the pulling spring (705) is welded to the clamping block (703); the clamping block (703) is bonded to the rubber pressure pad (707); the top of the mounting seat (704) is screwed to the pressure plate (702); the left and right ends of the top support rod (8) are welded to the vertical rod (4), and the outer side surface of the top support rod (8) is welded to the support plate (701).

2. A device for fixing a pre-buried grouting pipe as claimed in claim 1, characterized in that: The number of the clamping blocks (703) is six groups, and the clamping blocks (703) are distributed in a circular array around the vertical center axis of the mounting seat (704). A circular hole groove is provided on the rear side surface of each group of clamping blocks (703) near the bottom end, and the upper side surfaces of the clamping blocks (703) are all inclined structures.

3. A device for fixing a pre-buried grouting pipe as claimed in claim 1, characterized in that: The mounting seat (704) is a cylindrical structure that passes through from top to bottom. The outer side surface of the cylindrical body of the mounting seat (704) is provided with a thread. The inner side surface of the cylindrical body structure of the mounting seat (704) is provided with six groups of grooves. The grooves of the mounting seat (704) are distributed in a circular array around the vertical center axis of the mounting seat (704). The bottom of each group of grooves of each group of mounting seats (704) is provided with a circular hole groove. The bottom of the circular hole groove is welded with a support guide column (706). The clamping block (703) is embedded in the groove of the mounting seat (704), and the support guide column (706) is embedded in the circular hole groove of the clamping block (703).

4. A device for fixing a pre-buried grouting pipe as claimed in claim 1, characterized in that: A through hole extending vertically through the pressure plate (702) is provided at the center thereof, and a threaded structure is provided on the inner side surface of the through hole of the pressure plate (702) near the bottom end, and the thread on the inner side surface of the through hole of the pressure plate (702) is meshedly connected to the threaded structure on the outer side surface of the mounting seat (704) near the top end.

5. A device for fixing a pre-buried grouting pipe as claimed in claim 1, characterized in that: A convex column is provided at the center of the upper side surface of the support plate (701), and a through hole is provided at the center of the convex column, which passes through from top to bottom. The grouting pipe body (3) is inserted into the through hole of the convex column of the support plate (701).

6. A device for fixing a pre-buried grouting pipe as claimed in claim 1, characterized in that: The central portion of the positioning frame (2) is provided with a through hole which passes through from top to bottom. The grouting pipe body (3) is inserted into the through hole in the central portion of the positioning frame (2). The through hole of the positioning frame (2) and the through hole of the support plate (701) are vertically opposite to each other.