Anti-blocking grouting pipe

Abstract

The utility model relates to the technical field of grouting pipes, in particular to an anti-blocking grouting pipe. Comprising a three-way pipe, a slurry supply pipe, an exhaust assembly and a grouting pipe. The mortar supply pipe is communicated with a middle connector of the three-way pipe and used for injecting mortar into the three-way pipe. One end of the grouting pipe is communicated with a bottom connector of the three-way pipe, and mortar in the three-way pipe is guided into the hole bottom to be grouted and filled along the other end of the grouting pipe; the exhaust assembly is arranged at a top connector of the three-way pipe, an exhaust channel communicating the inside and the outside of the three-way pipe is arranged in the exhaust assembly, the bottom of the exhaust channel extends into the grouting pipe, and air in the grouting pipe is exhausted. According to the grouting pipe, air in the pipe can be smoothly exhausted, the pipe blocking phenomenon is avoided, the structure is simple, operation is easy, and the grouting construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting pipes, in particular to an anti-blocking grouting pipe. Background Art

[0002] Coal mine shafts are drilled using the drilling method. After the drilling is completed and the shaft wall sinks to the bottom through mud floating, cement slurry or mortar is needed to consolidate the shaft wall and the drill hole together to achieve cementing.

[0003] Operating Principle: The operator first lowers the grouting pipe to the bottom of the hole to be filled. The delivery pump delivers mortar through the grouting pipe to the bottom of the hole. Because the density of mortar is higher than that of mud, the mortar at the bottom of the hole supports the mud and rises, replacing the mud with mortar. A mortar layer forms between the wellbore wall and the hole. After the mortar solidifies, it consolidates the wellbore wall and the hole, thus achieving cementing.

[0004] Existing Problems: While this process successfully fills the pipe with cement slurry, mortar filling often causes pipe blockage. Analysis reveals that this is caused by air trapped in the pipe. During the grouting process, once the pump is stopped, air enters the pipe. Because the pipe contains mortar, the bottom of the pipe is filled with mortar, and the top is filled with mud, the mud's specific gravity is lower than the mortar's. This causes the mortar surface inside the pipe to be lower than the mud surface outside, creating an air gap on the mortar surface inside the pipe. When the pump is restarted, the mortar compresses the air inside the pipe onto the existing mortar, causing pipe blockage. Therefore, a solution is urgently needed.

[0005] The above content is only used to assist in understanding the technical solution of the present invention and does not mean that the above content is the closest prior art. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide an anti-blocking grouting pipe, which can not only discharge the air in the pipe smoothly to avoid the blockage phenomenon, but also has a simple structure and is easy to operate, thereby improving the grouting construction efficiency.

[0007] To achieve the above-mentioned purpose, the technical solution of the present invention is implemented as follows: a grouting pipe with an anti-blocking function, comprising: a tee pipe, a slurry supply pipe, an exhaust assembly and a grouting pipe; the slurry supply pipe is connected to the middle interface of the tee pipe, and is used to inject mortar into the tee pipe; one end of the grouting pipe is connected to the bottom interface of the tee pipe, and the mortar in the tee pipe is introduced into the bottom of the hole to be grouting along the other end; the exhaust assembly is arranged at the top interface of the tee pipe, and an exhaust channel connecting the inside and outside of the tee pipe is provided in the exhaust assembly, and the bottom of the exhaust channel extends to the grouting pipe, and the air in the grouting pipe is discharged.

[0008] Preferably, the exhaust assembly includes a sealing portion and an exhaust pipe; one end of the exhaust pipe is set as an air inlet end, and the air inlet end is connected to the grouting pipe, and the other end of the exhaust pipe is set as an air outlet end, the air outlet end is connected to the outside after passing through the top interface of the tee pipe, and the air outlet end is provided with a manual exhaust ball valve; the sealing portion is arranged at the top interface of the tee pipe, and fills the gap between the exhaust pipe and the top interface of the tee pipe.

[0009] Preferably, the sealing part includes a plug, a sealing cover, a sealing ring and a fastening screw; the bottom end of the plug is connected to the top interface of the tee pipe, and the plug is provided with a through hole for the exhaust pipe to pass through; the sealing ring is sleeved on the exhaust pipe and arranged in the through hole; the sealing cover is snap-fitted with the exhaust pipe and is fixed to the top end of the plug by a fastening screw.

[0010] Preferably, an air inlet hole is provided on the pipe body of the air inlet end of the exhaust pipe.

[0011] Preferably, there are at least three air inlet holes, which are evenly spaced along the vertical direction of the exhaust pipe body at the air inlet end.

[0012] Preferably, it also includes an annular grouting guide plate; the middle interface of the tee is set to an arc shape; the annular grouting guide plate is an extension outlet of the middle interface of the tee to the inside of the tee, and the annular grouting guide plate is used to guide the mortar to the bottom interface of the tee.

[0013] The beneficial effects of the present invention are as follows:

[0014] (1) The grouting pipe provided by the utility model can manually discharge the air in the grouting pipe during the grouting pump stop period, which not only avoids the formation of air segments in the grouting pipe and the occurrence of pipe blockage, but also the entire grouting pipe has a simple structure and the exhaust method is easy to operate, thereby improving the efficiency of grouting construction.

[0015] (2) The exhaust pipe provided by the present invention is provided with a plurality of air inlet holes at the air inlet end, so that the air in the air section of the grouting pipe can enter through the air inlet holes, making the exhaust smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] Reference numerals and descriptions:

[0018] 10. Tee pipe; 11. Annular grouting guide plate; 20. Slurry supply pipe; 30. Exhaust pipe; 31. Manual exhaust ball valve; 32. Air inlet; 41. Plug; 42. Sealing cover; 43. Sealing ring; 44. Fastening screw; 50. Grouting pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Example

[0021] See also Figure 1 As shown:

[0022] The utility model provides an anti-blocking grouting pipe, which comprises a tee pipe 10, a slurry supply pipe 20, an exhaust component and a grouting pipe 50.

[0023] The slurry supply pipe 20 is connected to the middle interface of the tee 10 and is used to inject mortar into the tee 10. One end of the grouting pipe 50 is connected to the bottom interface of the tee 10 and guides the mortar in the tee 10 along the other end to the bottom of the hole to be grouted. The exhaust assembly is arranged at the top interface of the tee 10 and is provided with an exhaust channel connecting the inside and outside of the tee 10. The bottom of the exhaust channel extends into the grouting pipe 50 and exhausts the air in the grouting pipe 50.

[0024] By setting up the exhaust channel, the air in the air section generated by the grouting pipe 50 when the pump is stopped can be discharged along the exhaust channel, thereby eliminating the air section and avoiding pipe blockage during grouting again, which is simple and convenient.

[0025] The exhaust assembly primarily consists of a sealing portion and an exhaust pipe 30. One end of the exhaust pipe 30 serves as the air inlet, connected to the grouting pipe 50. The other end of the exhaust pipe 30 serves as the air outlet, which passes through the top connection of the tee 10 and connects to the outside. A manual exhaust ball valve 31 is installed at the outlet. The inlet end of the exhaust pipe 30 is provided with air inlet holes 32. There are at least three air inlet holes 32, evenly spaced vertically along the inlet end of the exhaust pipe 30.

[0026] In specific applications, the exhaust pipe 30 constitutes an exhaust channel, and the air in the air segment generated by the grouting pipe 50 when the pump is stopped can enter the exhaust pipe 30 along the pipe mouth of the air inlet end of the exhaust pipe 30, or the air inlet hole 32, and be smoothly discharged when the manual exhaust ball valve 31 is opened, so that the air segment generated by the grouting pipe 50 when the pump is stopped can be automatically eliminated. When the grouting pipe 50 is working, by closing the manual exhaust ball valve 31, mortar can be prevented from entering the exhaust pipe 30. In addition, at the end of the grouting work, the exhaust pipe 30 can be cleaned by simply removing it and connecting it to a high-pressure water pipe to avoid clogging due to long-term use.

[0027] The sealing portion is provided at the top interface of the tee pipe 10 and fills the gap between the exhaust pipe 30 and the top interface of the tee pipe 10 .

[0028] The sealing part mainly consists of a plug 41 , a sealing cover 42 , a sealing ring 43 and a fastening screw 44 .

[0029] The bottom end of the plug 41 is connected to the top connection of the tee 10, primarily for sealing the top connection. The plug 41 has a through-hole for the exhaust pipe 30 to pass through, and a sealing ring 43 fits over the exhaust pipe 30 and is positioned within the through-hole. This solves the problem of the exhaust pipe 30 being small in diameter and the top connection of the tee 10 being large in diameter. It also prevents mortar from being discharged along the top connection of the tee 10 or through the gap between the through-hole of the plug 41 and the exhaust pipe 30 during grouting.

[0030] The sealing cover 42 is connected to the exhaust pipe 30 and is fixed to the top of the plug 41 by a fastening screw 44. This arrangement makes the connection between the exhaust pipe 30 and the plug 41 tighter, can withstand greater grouting pressure during grouting, and ensures the airtightness required for grouting.

[0031] It also includes an annular grouting guide plate 11; the middle interface of the tee pipe 10 is set to an arc shape; the annular grouting guide plate 11 is an extension outlet of the middle interface of the tee pipe 10 to the inside of the tee pipe 10, and the annular grouting guide plate 11 is used to guide the mortar to the bottom interface of the tee pipe 10, thereby reducing the extrusion force of the mortar on the sealing part at the top interface of the tee pipe 10.

[0032] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then such directional indications are only used to explain the relative positional relationship and movement of the various components in a specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indications will also change accordingly. In addition, if the embodiments of the present invention involve descriptions such as "first" and "second", then such descriptions such as "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features specified as "first" and "second" can explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions where both A and B are satisfied. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A grouting pipe for preventing blockage, characterized in that: include: A tee (10), a slurry supply pipe (20), an exhaust assembly and a grouting pipe (50); the slurry supply pipe (20) is connected to the middle interface of the tee (10) and is used to inject mortar into the tee (10); one end of the grouting pipe (50) is connected to the bottom interface of the tee (10), and the mortar in the tee (10) is introduced into the bottom of the hole to be grouted along the other end; the exhaust assembly is arranged at the top interface of the tee (10), and an exhaust channel connecting the inside and outside of the tee (10) is provided in the exhaust assembly, and the bottom of the exhaust channel extends to the grouting pipe (50) and discharges the air in the grouting pipe (50).

2. The anti-blocking grouting pipe according to claim 1, characterized in that: The exhaust assembly comprises a sealing portion and an exhaust pipe (30); one end of the exhaust pipe (30) is set as an air inlet end, and the air inlet end is connected to the grouting pipe (50); the other end of the exhaust pipe (30) is set as an air outlet end, and the air outlet end is connected to the outside after passing through the top interface of the three-way pipe (10), and the air outlet end is provided with a manual exhaust ball valve (31); the sealing portion is set at the top interface of the three-way pipe (10) and fills the gap at the top interface between the exhaust pipe (30) and the three-way pipe (10).

3. The anti-blocking grouting pipe according to claim 2, characterized in that: The sealing portion comprises a plug (41), a sealing cover (42), a sealing ring (43) and a fastening screw (44); the bottom end of the plug (41) is connected to the top interface of the three-way pipe (10), and the plug (41) is provided with a through hole for the exhaust pipe (30) to pass through; the sealing ring (43) is sleeved on the exhaust pipe (30) and arranged in the through hole; the sealing cover (42) is clamped with the exhaust pipe (30) and is fixed to the top end of the plug (41) by a fastening screw (44).

4. The anti-blocking grouting pipe according to claim 3, characterized in that: An air inlet hole (32) is provided on the pipe body of the air inlet end of the exhaust pipe (30).

5. The anti-blocking grouting pipe according to claim 4, characterized in that: There are at least three air inlet holes (32), which are evenly spaced and distributed along the vertical direction of the air inlet end of the exhaust pipe (30).

6. The anti-blocking grouting pipe according to claim 4, characterized in that: It also includes an annular grouting guide plate (11); the middle interface of the tee pipe (10) is set to be arc-shaped; the annular grouting guide plate (11) is an extension outlet of the middle interface of the tee pipe (10) to the inside of the tee pipe (10), and the annular grouting guide plate (11) is used to guide mortar to the bottom interface of the tee pipe (10).

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