Efficient grouting pipe for foundation engineering

Abstract

The utility model relates to the field of foundation engineering, in particular to an efficient grouting pipe for foundation engineering, which comprises a grouting pipe body. And the grout outlets are formed in the outer portion of the grouting pipe body, and plugging assemblies are arranged in the grout outlets. According to the efficient grouting pipe for foundation engineering, due to the arrangement of the grouting pipe body, the grout outlet and the plugging assembly, the grouting pipe body is inserted into a foundation, the baffle in the grout outlet can shield gravel, and when the gravel in the foundation extrudes the baffle in the grout outlet, the baffle can be prevented from overturning through the baffle ring behind the baffle, so that the grouting pipe is convenient to use. When grouting is needed, a grouting agent and cement are poured into the grouting pipe body, the two sets of baffles are pushed away by extruding the cement from the inner sides of the baffles, and therefore the cement is smoothly discharged, and after grouting is completed, through movable rods on the upper sides and the lower sides of the baffles and external torsion springs, the movable rods are pushed away by the movable rods. And the two groups of baffles are turned back to the original positions, so that gravels are effectively prevented from entering the grouting pipe body.

Description

Technical Field

[0001] The utility model relates to the field of foundation engineering, in particular to a high-efficiency grouting pipe for foundation engineering. Background Art

[0002] Foundation engineering generally refers to engineering measures taken to improve the bearing capacity of the foundation supporting a building or to improve its deformation or permeability properties. During foundation construction, when reinforcing areas prone to landslides or soft soil layers, grouting pipes are generally used to inject slurry into the corresponding areas or soil layers for reinforcement. During construction, a hole is drilled at the designated grouting location, and then a grouting pipe is inserted into the hole to carry out the grouting operation.

[0003] After searching, a utility model with a publication number of CN216973380U for a high-efficiency grouting pipe for foundation engineering comprises a grouting pipe, on which a plurality of grouting holes are arranged at equal intervals, a first extension pipe is fixedly connected to the upper side of the grouting pipe, a middle pipe is arranged on the upper side of the grouting pipe, and second extension pipes are fixedly connected to the upper and lower sides of the middle pipe. When the grouting pipe is connected to the middle pipe, the first extension pipe on the upper side of the grouting pipe is first inserted into the inner side of the second extension pipe on the lower side of the middle pipe, and the slip ring is squeezed, and the pipe clamp on the outer side of the first extension pipe is screwed on, so that the first extension pipe continuously squeezes the spring on the slip ring on the inner side of the second extension pipe, so that the connection between the grouting pipe and the middle pipe is connected through the pipe clamp, the first extension pipe and the second extension pipe, which not only increases the firmness and sealing of the device, but also the upper side of the grouting pipe after connection will be squeezed by the spring inside the second extension pipe, ensuring that the device will not loosen when it is vibrated again.

[0004] The existing high-efficiency grouting pipes for foundation engineering need to insert the grouting pipe heads into the foundation during grouting. The foundation contains a large amount of sand and gravel. During the process of inserting the grouting pipe heads into the foundation, sand and gravel can easily enter the grouting pipes through the grouting holes of the grouting pipes, causing the grouting holes of the grouting pipes to be blocked, thereby failing to efficiently grout the foundation. The high-efficiency grouting pipes for foundation engineering in the above-mentioned comparative case only provide a method for splicing the grouting pipes. When the grouting pipes are inserted into the foundation, the sand and gravel inside the foundation may enter the grouting pipes through the grouting holes, thereby affecting the grouting effect.

[0005] Therefore, it is necessary to invent a high-efficiency grouting pipe for foundation engineering to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a high-efficiency grouting pipe for foundation engineering. The grouting pipe body is inserted into the foundation, and the baffle in the slurry outlet can block sand and gravel. When the sand and gravel in the foundation squeeze the baffle in the slurry outlet, the baffle can be stopped from flipping over by the baffle ring behind the baffle, thereby preventing sand and gravel from entering the grouting pipe body. When grouting is required, grouting agent and cement are poured into the grouting pipe body, and the cement is squeezed from the inner side of the baffle to push the two groups of baffles apart, thereby smoothly discharging the cement to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above-mentioned object, the present utility model provides the following technical solutions: a high-efficiency grouting pipe for foundation engineering, comprising a grouting pipe body;

[0008] The slurry outlets are all opened on the outside of the grouting pipe body. A plugging assembly is provided inside the slurry outlet to prevent sand and gravel from entering the grouting pipe body. The upper end of the grouting pipe body is movably connected to an upper cover, and the lower end of the grouting pipe body is movably connected to a cone head;

[0009] A connecting cover is arranged inside the upper end of the grouting pipe body. The inner grouting pipe is movably connected to the inside of the connecting cover. A connecting plate is provided at the lower end of the inner grouting pipe. A grouting barrel is fixedly installed below the connecting plate. Grouting holes are provided on the outer surface of the grouting barrel. The grouting barrel is used for grouting at designated positions.

[0010] Preferably, the sealing assembly includes a retaining ring, a fixed block, a movable rod, a torsion spring, and a baffle. The retaining ring is fixed inside the slurry outlet, and fixed blocks are fixedly installed on the upper and lower sides of the inside of the slurry outlet. One side of the fixed block is movably connected to the movable rod, a torsion spring is provided on the outside of the movable rod, and a baffle is fixedly installed on one side of the outside of the movable rod.

[0011] Preferably, the baffles are provided in two groups, and the outer diameters of the two groups of baffles are larger than the inner diameter of the baffle ring.

[0012] Preferably, slide grooves are provided on both sides of the inner surface of the upper end of the grouting pipe body, and sliders are fixedly installed on both sides of the connecting cover, and the slide grooves are used in conjunction with the sliders.

[0013] Preferably, a first external thread is provided on the outer portion of the upper end of the grouting pipe body, the grouting pipe body is threadedly connected to the upper cover, and a hole groove is provided on the inner center surface of the upper cover.

[0014] Preferably, a thread groove is provided on the lower end surface of the grouting pipe body, a second external thread is provided on the outer portion of the upper end of the cone head, and the grouting pipe body is threadably connected to the cone head.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] When grouting is needed, grouting agent and cement are poured into the grouting pipe body, and the cement is squeezed from the inside of the baffle to push the two sets of baffles apart, so that the cement is discharged smoothly. When grouting is completed, the movable rods on the upper and lower sides of the baffle and the external torsion spring play a rebound effect, and the two sets of baffles are flipped back to their original position and merged together again, which effectively blocks sand and gravel from entering the grouting pipe body, and also does not affect the subsequent efficient grouting.

[0017] Through the arrangement of the grouting pipe body, connecting cover, inner grouting pipe, connecting plate, grouting barrel and grouting hole, grouting can be achieved at different heights and areas. The connecting cover and the inner grouting pipe are installed in the grouting pipe body. Through the thread arranged on the outside of the inner grouting pipe, the grouting barrel is pushed up and down in the grouting pipe body when it is rotated in the connecting cover, thereby meeting the needs of grouting at different positions and improving the overall high efficiency and practicality of grouting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the grouting pipe body of the present utility model;

[0021] Figure 3 This is a schematic structural diagram of the plugging assembly of the present utility model;

[0022] Figure 4 This is a schematic diagram of the grouting tube structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the upper cover and cone head structure of the utility model.

[0024] Description of reference numerals:

[0025] 1. Grouting pipe body; 2. Grouting outlet; 3. Sealing assembly; 301. Retaining ring; 302. Fixed block; 303. Movable rod; 304. Torsion spring; 305. Baffle; 4. Slide groove; 5. Slider; 6. Connecting cover; 7. Inner grouting pipe; 8. Connecting plate; 9. Grouting barrel; 10. Grouting hole; 11. First external thread; 12. Upper cover; 13. Thread groove; 14. Cone head; 15. Second external thread. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] The utility model provides Figure 1-5 The high-efficiency grouting pipe for foundation engineering shown includes a grouting pipe body 1;

[0028] The slurry outlet 2 is provided on the outside of the grouting pipe body 1. A plugging assembly 3 is provided inside the slurry outlet 2 to prevent sand and gravel from entering the grouting pipe body 1. The upper end of the grouting pipe body 1 is movably connected to an upper cover 12, and the lower end of the grouting pipe body 1 is movably connected to a cone head 14.

[0029] The connecting cover 6 is arranged inside the upper end of the grouting pipe body 1. The inner grouting pipe 7 is movably connected to the inner grouting pipe 7. The lower end of the inner grouting pipe 7 is provided with a connecting plate 8. A grouting cylinder 9 is fixedly installed below the connecting plate 8. The outer surface of the grouting cylinder 9 is provided with a grouting hole 10. The grouting cylinder 9 is used for grouting at a designated position. The grouting pipe body 1 is first inserted into the foundation. The baffle 305 in the slurry outlet 2 can block the sand and gravel. When the sand and gravel in the foundation squeeze the baffle 305 in the slurry outlet 2, the baffle 305 can be blocked by the baffle ring 301 behind the baffle 305. 5 is flipped to prevent sand and gravel from entering the grouting pipe body 1. When grouting is required, grouting agent and cement are poured into the grouting pipe body 1. The cement is squeezed from the inner side of the baffle 305 to push the two sets of baffles 305 apart, so that the cement is discharged smoothly. When grouting is completed, the movable rods 303 on the upper and lower sides of the baffle 305 and the external torsion spring 304 play a rebound role and flip the two sets of baffles 305 back to their original positions and merge together again, which effectively blocks sand and gravel from entering the grouting pipe body 1 and also does not affect the subsequent efficient grouting.

[0030] like Figure 1 、 Figure 2 and Figure 3As shown, the sealing assembly 3 includes a retaining ring 301, a fixed block 302, a movable rod 303, a torsion spring 304, and a baffle 305. The retaining ring 301 is fixed inside the slurry outlet 2, and the fixed blocks 302 are fixedly installed on the upper and lower sides of the inside of the slurry outlet 2. One side of the fixed block 302 is movably connected with the movable rod 303, and a torsion spring 304 is provided on the outside of the movable rod 303. A baffle 305 is fixedly installed on one side of the outside of the movable rod 303. The baffle 305 can effectively prevent sand and gravel in the foundation from entering the grouting pipe body 1, thereby preventing normal grouting and affecting the grouting effect.

[0031] like Figure 3 As shown, two groups of baffles 305 are provided, and the outer diameters of the two groups of baffles 305 are larger than the inner diameter of the baffle ring 301. The baffle ring 301 can prevent the baffles 305 from flipping backwards and squeeze the sand and gravel in the base into the grouting pipe body 1.

[0032] like Figure 1 、 Figure 2 and Figure 4 As shown, slide grooves 4 are provided on both sides of the inner surface of the upper end of the grouting pipe body 1, and sliders 5 are fixedly installed on both sides of the connecting cover 6. The slide grooves 4 and the sliders 5 are used in conjunction with each other, and the connecting cover 6 and the internal grouting pipe 7 are limited in the grouting pipe body 1 by the sliders 5, which helps the internal grouting pipe 7 to rotate and is also convenient for disassembly and cleaning.

[0033] like Figure 1 and Figure 5 As shown, a first external thread 11 is provided on the outer upper end of the grouting pipe body 1, the grouting pipe body 1 is threadedly connected to the upper cover 12, a hole groove is provided on the inner center surface of the upper cover 12, and the upper cover 12 is threadedly connected to the grouting pipe body 1, which is convenient for assembly, disassembly and cleaning.

[0034] like Figure 1 and Figure 5 As shown, a thread groove 13 is provided on the lower end surface of the grouting pipe body 1, and a second external thread 15 is provided on the upper end of the cone head 14. The grouting pipe body 1 is threadedly connected to the cone head 14, and the cone head 14 is threadedly connected to the grouting pipe body 1, and the whole is easy to disassemble and replace.

[0035] The working principle of the utility model is as follows: first, the grouting pipe body 1 is extended into the foundation. When it is inside the foundation, the baffle 305 inside the slurry outlet 2 can block the sand and gravel. When the sand and gravel in the foundation squeezes the baffle 305 inside the slurry outlet 2, the baffle ring 301 behind the baffle 305 can stop the baffle 305 from flipping over, preventing the sand and gravel from entering the grouting pipe body 1. When grouting is needed, the grouting agent and cement are first poured into the inner grouting pipe 7, and then the inner grouting pipe 7 is rotated to move up and down in the grouting pipe body 1. After the grouting position is adjusted, the cement will enter the grouting barrel 9 from the inner grouting pipe 7, and then be squeezed out from the grouting hole 10 outside the grouting barrel 9. At this time, the cement enters the grouting pipe body 1, and then the cement squeezes the baffle 305 inside the slurry outlet 2. 5. Push the two sets of baffles 305 apart from the inside, so as to smoothly discharge the cement into the foundation. Then, the inner grouting pipe 7 can be rotated to adjust the height according to the grouting position. When the grouting is completed, the movable rods 303 on the upper and lower sides of the baffles 305 and the external torsion spring 304 play a rebound role and flip the two sets of baffles 305 back to their original positions and merge together, which effectively blocks sand and gravel from entering the grouting pipe body 1 and enables efficient grouting. Finally, the entire grouting pipe body 1 is pulled out, and then the upper cover 12 is unscrewed, and then the connecting cover 6, the inner grouting pipe 7 and the grouting barrel 9 below are taken out from the grouting pipe body 1, and then they are cleaned. In this way, the use process of the high-efficiency grouting pipe for foundation engineering is completed.

[0036] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-efficiency grouting pipe for foundation engineering, characterized by: It includes a grouting pipe body (1); The grouting outlets (2) are all opened outside the grouting pipe body (1); a plugging assembly (3) is provided inside the grouting outlet (2); the plugging assembly (3) is used to prevent sand and gravel from entering the grouting pipe body (1); the upper end of the grouting pipe body (1) is movably connected to an upper cover (12); and the lower end of the grouting pipe body (1) is movably connected to a cone head (14); A connecting cover (6) is arranged inside the upper end of the grouting pipe body (1); an inner grouting pipe (7) is movably connected inside the connecting cover (6); a connecting plate (8) is provided at the lower end of the inner grouting pipe (7); a grouting barrel (9) is fixedly installed below the connecting plate (8); grouting holes (10) are provided on the outer surface of the grouting barrel (9); and the grouting barrel (9) is used for grouting at a designated position.

2. The high-efficiency grouting pipe for foundation engineering according to claim 1, characterized in that: The blocking assembly (3) comprises a retaining ring (301), a fixed block (302), a movable rod (303), a torsion spring (304), and a baffle (305); the retaining ring (301) is fixed inside the slurry outlet (2); the fixed blocks (302) are fixedly installed on the upper and lower sides of the interior of the slurry outlet (2); one side of the fixed block (302) is movably connected to the movable rod (303); the outside of the movable rod (303) is provided with a torsion spring (304); and the baffle (305) is fixedly installed on one side of the outside of the movable rod (303).

3. The high-efficiency grouting pipe for foundation engineering according to claim 2, characterized in that: Two groups of baffles (305) are provided, and the outer diameters of the two groups of baffles (305) are larger than the inner diameter of the baffle ring (301).

4. The high-efficiency grouting pipe for foundation engineering according to claim 1, characterized in that: Slide grooves (4) are provided on both sides of the inner surface of the upper end of the grouting pipe body (1), and sliders (5) are fixedly installed on both sides of the connecting cover (6), and the slide grooves (4) and the sliders (5) are used in conjunction with each other.

5. The high-efficiency grouting pipe for foundation engineering according to claim 1, characterized in that: The upper end of the grouting pipe body (1) is provided with a first external thread (11), the grouting pipe body (1) is threadedly connected to the upper cover (12), and the inner center surface of the upper cover (12) is provided with a hole groove.

6. The high-efficiency grouting pipe for foundation engineering according to claim 1, characterized in that: A thread groove (13) is provided on the lower end surface of the grouting pipe body (1), a second external thread (15) is provided on the outer upper end of the cone head (14), and the grouting pipe body (1) is threadably connected to the cone head (14).

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