Sleeve grouting quality control device and method

Abstract

The invention belongs to the technical field of constructional engineering, and particularly relates to a sleeve grouting quality control device and method.The device comprises a three-way connecting cavity, a monitoring assembly, a detachable feeding assembly and a detachable core making assembly. The feeding assembly comprises a feeding pipe and a longitudinal blocking plate, a longitudinal blocking groove is formed in the feeding pipe, and the longitudinal blocking plate is inserted into the longitudinal blocking groove and can seal a channel between the feeding pipe and the three-way connecting cavity; the monitoring assembly comprises a monitoring pipe, and the monitoring pipe is provided with a marking line and an air hole; the core making assembly comprises a core making pipe and a sealing blocking plate. A transverse sealing groove and a transverse blocking groove are formed in the core making pipe and the three-way connecting cavity respectively, the core making pipe can be sealed by inserting the sealing blocking plate into the transverse sealing groove, and a channel between the core making pipe and the three-way connecting cavity can be sealed by inserting the sealing blocking plate into the transverse blocking groove. The integration of multiple functions such as plugging of the slurry outlet of the reinforcing steel bar sleeve, monitoring of grouting fullness and preparation of the grouting material core sample is realized, and the integrity, convenience and economy of preparation of the grouting material core sample are enhanced.

Description

Technical Field

[0001] The invention belongs to the technical field of construction engineering, and particularly relates to a sleeve grouting quality control device and method. Background Art

[0002] With the high-quality development of building industrialization, prefabricated buildings are widely used, and the connection nodes between the main load-bearing parts are mostly steel sleeve connections. In the steel sleeve connection construction process, grouting materials are needed to fasten the sleeve, parts, and connecting steel bars together. If there are defects in the sleeve grouting construction quality, it will affect the structural strength and overall stability of the building and cause safety hazards. Therefore, it is particularly important to inspect the quality of the steel sleeve connection construction process.

[0003] Grouting fullness and grouting material strength are important parameters for quality inspection of steel sleeve connection construction. Grouting fullness inspection methods mainly include endoscopy, X-ray, pre-buried steel wire pulling, and pre-buried sensor. These inspection methods have high technical costs and difficulties, and are mostly applicable to the later stages of construction. It is difficult to rectify quality defects found after the construction is completed, and it is also difficult to assess whether the quality after rectification meets the standards. The method for testing the strength of grouting materials usually involves preparing corresponding grouting material core samples to determine the compressive strength, but the current core sample preparation methods are difficult, not very operable, or require separate consumption of grouting materials, increasing construction costs. Summary of the invention

[0004] The purpose of the present invention is to provide a sleeve grouting quality control device and method to solve the problems of high technical cost and difficulty in the commonly used grouting fullness detection method, as well as the low operability and high cost of grouting material core sample preparation.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A sleeve grouting quality control device comprises a three-way connection cavity, a feed assembly is detachably mounted on the left end of the three-way connection cavity, the feed assembly comprises a feed pipe and a longitudinal blocking plate, a feed port is arranged on the left end of the feed pipe, a longitudinal blocking groove is arranged on the right end of the feed pipe, and the longitudinal blocking plate is inserted into the longitudinal blocking groove to close the passage between the feed pipe and the three-way connection cavity;

[0007] A monitoring assembly is provided at the upper end of the three-way connection cavity, and the monitoring assembly includes a transparent monitoring tube, the monitoring tube is perpendicular to the feed tube, a plurality of air holes are provided at the upper end of the monitoring tube, and a marking line is provided on the outer wall of the monitoring tube;

[0008] A core making assembly is detachably installed at the lower end of the three-way connecting cavity, and the core making assembly includes a core making tube and a sealing blocking plate. The core making tube and the monitoring tube are located on the same central axis. A transverse sealing groove is provided at the upper end of the core making tube, and a transverse blocking groove is provided at the lower end of the three-way connecting cavity. The sealing blocking plate is inserted into the transverse sealing groove to seal the core making tube, and the sealing blocking plate is inserted into the transverse blocking groove to close the passage between the core making tube and the three-way connecting cavity.

[0009] Furthermore, the core making tube comprises a first shell and a second shell, the first shell and the second shell are connected into a whole through a mortise and tenon structure, and a rectangular column grouting material core sample can be produced after the first shell and the second shell are molded together.

[0010] Furthermore, the three-way connecting cavity is a cube shell structure, a square-to-round joint is fixed at the upper end of the three-way connecting cavity, and the lower end of the monitoring tube is fixed to the circular interface end of the square-to-round joint; the left end and the lower end of the three-way connecting cavity are provided with mortise and tenon grooves, the right end of the feed pipe is provided with a round-to-square joint, the square interface end of the round-to-square joint and the upper end of the core making tube are provided with tenons, and the feed pipe and the core making tube are respectively connected to the left end and the lower end of the three-way connecting cavity through corresponding mortise and tenon structures.

[0011] Furthermore, the volume from the identification line of the monitoring tube to the transverse blocking groove is equal to the volume of the core making tube.

[0012] Furthermore, a sealing ring is provided on the outer wall of the feed pipe, and the cross-section of the sealing ring is a tooth-like structure with a gradually increasing diameter.

[0013] Furthermore, a detachable ventilation cap is provided at the upper end of the monitoring tube, and air holes are arranged on the ventilation cap.

[0014] Furthermore, the three-way connecting cavity, the feeding assembly, the monitoring assembly and the core making assembly are all made of transparent plastic material.

[0015] A detection method using the above-mentioned sleeve grouting quality control device comprises the following steps:

[0016] Step S1: Apply an oily liquid agent to the feed pipe, the monitoring pipe, the core making pipe and the inside of the three-way connection cavity, install the feed pipe, the monitoring pipe and the core making pipe at the left end, the upper end and the lower end of the three-way connection cavity respectively, insert the longitudinal blocking plate into the longitudinal blocking groove to close the passage between the feed pipe and the three-way connection cavity, insert the sealing blocking plate into the transverse blocking groove to close the passage between the core making pipe and the three-way connection cavity;

[0017] Step S2: insert the feed port of the feed pipe into the grouting outlet of the steel sleeve, so that the exposed part of the feed assembly is on the same plane as the outlet, the feed pipe, the monitoring pipe and the grouting space inside the sleeve are connected, and the grouting fluid overflows from the outlet and flows into the feed pipe;

[0018] Step S3: The longitudinal blocking plate is pulled out of the longitudinal blocking groove, and the grouting material fluid flows into the monitoring pipe through the three-way connection cavity. The surface of the grouting material fluid gradually rises under the action of the grouting pressure until it is flush with the marking line, and the grouting construction is stopped;

[0019] Step S4: Observe whether the surface of the grouting material fluid in the monitoring tube has a downward trend. If the surface has no downward trend, it means that there is no leakage in the sleeve grouting construction, and the next step can be performed. If the surface has a downward trend, it means that there is leakage in the sleeve grouting construction, and grouting construction remedial measures should be taken immediately until the surface of the grouting material fluid stabilizes at the marking line within a certain period of time;

[0020] Step S5: Pull out the sealing blocking plate from the transverse blocking groove to open the passage between the core making tube and the monitoring tube, and allow the grouting material in the monitoring tube to flow into the core making tube under the action of gravity. After the core making tube is filled with the grouting material, quickly insert the sealing blocking plate into the transverse sealing groove to cut off the grouting material in the three-way connection cavity and seal the top of the core making tube at the same time;

[0021] Step S6: reinsert the longitudinal blocking plate into the longitudinal blocking groove, cut off the grouting material at the connection between the feed pipe and the three-way connection cavity, and seal the right end of the feed pipe, separate the feed assembly from the three-way connection cavity, and leave the feed assembly in the slurry outlet of the steel sleeve to block the grouting material at the slurry outlet;

[0022] Step S7: Separate the core making assembly from the three-way connection cavity, wait for the grouting material in the core making tube to solidify, pull the sealing blocking plate out of the transverse sealing groove, separate the first shell and the second shell, and take out the grouting material core sample;

[0023] Step S8: Perform a compressive strength test on the grouting material core sample to detect the strength of the grouting material.

[0024] Compared with the prior art, the present invention has the following technical effects:

[0025] 1. The present application forms a communicating vessel by setting a feed pipe, a three-way connecting cavity and a monitoring pipe to connect with the grouting space inside the sleeve. By observing the height of the surface of the grouting material fluid in the monitoring pipe, it can be known whether the internal space of the sleeve is leaking. Compared with the detection instruments and equipment required for the endoscope method, the X-ray method, the pre-buried steel wire pulling method and the pre-buried sensor method, the present detection device is low in cost and convenient and quick in detection operation. Moreover, the grouting fullness observation process occurs during the sleeve grouting construction process. Even if leakage occurs, remedial measures can be taken in time, and the fullness of the sleeve grouting after the remedial measures is continuously monitored by the present detection device until the construction process quality is qualified, thereby effectively ensuring the quality of the steel sleeve grouting construction.

[0026] 2. The present application sets a core making tube below the monitoring tube. After the grouting fullness monitoring is completed, the sealing blocking plate is pulled out, and the grouting material in the monitoring tube can be recovered for making core samples, thereby avoiding the consumption of excess grouting material when making core samples and reducing the difficulty of making grouting core samples; the core making tube is set as a first shell and a second shell connected by a mortise and tenon structure, which reduces the difficulty of coring after the grouting material is solidified, is conducive to maintaining the integrity of the grouting core sample product, and will not cause damage to the core making tube, so that the core making tube can be reused many times, saving costs; compared with the existing method of making core samples, the integrity, convenience and economy of the preparation of grouting core samples are effectively improved.

[0027] 3. The present application can realize the one-time monitoring of the grouting fullness of the steel sleeve and the preparation of the grouting material core sample by providing a detachable and combined feeding component, a monitoring component and a core-making component. On the premise of ensuring that the sleeve grouting fullness meets the technical requirements, the integrity, convenience and economy of the grouting material core sample preparation are improved; the feeding component, the monitoring component and the core-making component are connected to the three-way connecting cavity as a whole through the mortise and tenon structure, and the various components are tightly connected to effectively avoid the leakage of the grouting material during the detection process, and the assembly and disassembly operations are simple and convenient. After the grouting fullness monitoring and core making are completed, the feeding component is directly used to seal the grouting material to avoid the overflow and waste of grouting material; the monitoring component and the core-making component can be reused many times after cleaning, which further reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front view of the present invention;

[0029] Figure 2 is a cross-sectional view of the present invention;

[0030] Figure 3 It is a schematic structural diagram of a feed assembly of the present invention;

[0031] Figure 4 It is a schematic diagram of the structure of the monitoring component and the three-way connecting cavity of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the core making assembly of the present invention;

[0033] Figure 6 It is a schematic diagram of the assembly operation of the present invention.

[0034] In the figure: three-way connecting chamber 1, transverse blocking groove 11, feeding assembly 2, feeding pipe 21, feeding port 211, longitudinal blocking plate 22, sealing ring 23, round to square joint 24, longitudinal blocking groove 241, monitoring assembly 3, monitoring tube 31, ventilation cap 32, air hole 321, identification line 33, square to round joint 34, core making assembly 4, core making tube 41, first shell 411, second shell 412, transverse sealing groove 413, sealing blocking plate 42. DETAILED DESCRIPTION

[0035] The following is further described in detail through specific implementation methods:

[0036] Example

[0037] like Figure 1 As shown, a sleeve grouting quality control device comprises a three-way connection chamber 1 made of environmentally friendly transparent plastic material, a feeding component 2, a monitoring component 3 and a core making component 4; Figure 4 As shown, the three-way connecting cavity 1 is a cubic shell structure, and the left end and the lower end of the three-way connecting cavity 1 are formed with tongue and groove.

[0038] The feeding assembly 2 includes a feeding pipe 21 and a longitudinal blocking plate 22. A sealing ring 23 is provided on the outer wall of the feeding pipe 21. The cross-section of the sealing ring 23 is a tooth-like structure with a gradually increasing diameter. A feeding port 211 is provided at the left end of the feeding pipe 21, and a round-to-square joint 24 is provided at the right end of the feeding pipe 21. A tenon and a longitudinal blocking groove 241 are formed on the square interface end face of the round-to-square joint 24. The tenon of the round-to-square joint 24 cooperates with the tenon groove at the left end of the three-way connecting cavity 1, so as to fix the feeding assembly 2 at the left end of the three-way connecting cavity 1. The longitudinal blocking plate 22 is inserted into the longitudinal blocking groove 241 to close the channel between the feeding pipe 21 and the three-way connecting cavity 1.

[0039] When in use, the left end of the feed pipe 21 (feed port 211) is inserted into the grouting outlet of the grouting sleeve, so that the sealing ring 23 is close to the inner wall of the grouting outlet to avoid leakage of grouting material, reduce waste of grouting material, avoid contamination of the construction site, and ensure the cleanliness of the construction site; the sealing ring 23 is set to a toothed structure with a gradually increasing diameter, so that the feed pipe 21 can cooperate with the grouting outlets of grouting sleeves of different diameters, thereby improving the versatility of the feed assembly 2.

[0040] The monitoring assembly 3 includes a monitoring tube 31, and a vent cap 32 is detachably mounted on the upper end of the monitoring tube 31. In this embodiment, a threaded connection is adopted, and a plurality of air holes 321 are arranged on the vent cap 32. An identification line 33 is arranged on the outer wall of the monitoring tube 31. A square-to-round joint 34 is arranged on the upper end of the three-way connection chamber 1, and the lower end of the monitoring tube 31 is fixed on the round interface end of the square-to-round joint 34, so that the monitoring tube 31 is perpendicular to the feed pipe 21. The upper end of the three-way connection chamber 1 and the square-to-round joint 34 can be fixedly connected or detachably connected. In this embodiment, an injection molding process is adopted to form the monitoring tube 31, the square-to-round joint 34 and the three-way connection chamber 1 as one piece, which can reduce the assembly time and steps of the sleeve grouting quality control device and improve work efficiency. A detachable connection method, such as a mortise and tenon connection, can also be adopted, which can make the cleaning effect of the monitoring tube 3 and the inside of the three-way connection chamber 1 better, and facilitate the repeated use of the monitoring assembly 3.

[0041] During the sleeve grouting construction process, the feed component 2 and the monitoring component 3 cooperate to make the feed pipe 21, the three-way connecting cavity 1 and the monitoring pipe 31 connected with the grouting space inside the sleeve to form a communicating vessel, so that the grouting material in the sleeve can enter the monitoring pipe 31 through the feed pipe 21. According to the communicating vessel principle, whether there is leakage inside the sleeve can be known by observing the height change of the grouting material fluid surface in the monitoring pipe 31. Since the grouting fullness observation process occurs during the sleeve grouting construction process, even if leakage occurs, remedial measures can be taken in time, and the sleeve grouting fullness after the remedial measures is continuously monitored by the monitoring component 3 until the construction process quality is qualified, thereby effectively ensuring the construction quality of the steel sleeve; after the inspection, the vent cap 32 can be removed, the inside of the monitoring pipe 31 can be cleaned, or the gravel, debris, etc. inside the monitoring pipe 31 can be taken out, so that the monitoring component 3 can be reused many times to save costs.

[0042] The core making assembly 4 includes a core making tube 41 and a sealing blocking plate 42. The core making tube 41 includes a first shell 411 and a second shell 412. The right end surface of the first shell 411 and the left end surface of the second shell 412 are respectively provided with a tenon and a tenon-groove structure. The first shell 411 and the second shell 412 can be connected into a whole through the tenon-and-mortise structure. After the first shell 411 and the second shell 412 are molded together, a rectangular column grouting material core sample can be produced; the upper end surfaces of the first shell 411 and the second shell 412 are both formed with tenons, and the tenons at the upper ends of the first shell 411 and the second shell 412 cooperate with the tenon-and-mortise structure at the lower end of the three-way connection cavity 1, so that the core making assembly 4 includes a core making tube 411 and a sealing blocking plate 42. The core making tube 41 includes a first shell 411 and a second shell 412. The core assembly 4 is fixed at the lower end of the three-way connecting chamber 1 so that the core making tube 41 and the monitoring tube 31 are located on the same central axis; the upper end surfaces of the first shell 411 and the second shell 412 are formed with a transverse sealing groove 413, and the sealing blocking plate 42 is inserted into the transverse sealing groove 413, which can combine the core making tube 41 into a whole and seal the core making tube 41; the lower end of the three-way connecting chamber 1 is provided with a transverse blocking groove 11, and the sealing blocking plate 42 is inserted into the transverse blocking groove 11 to close the passage between the core making tube 41 and the three-way connecting chamber 1; the volume of the core making tube 41 is equal to the volume from the identification line 33 of the monitoring tube 31 to the transverse blocking groove 11.

[0043] During the above-mentioned grouting fullness monitoring process, the sealing blocking plate 42 is inserted into the transverse blocking groove 11 to prevent leakage of grouting material and affect the grouting fullness monitoring result; after the grouting fullness monitoring is completed, the sealing blocking plate 42 is pulled out of the transverse blocking groove 11, and the grouting material in the monitoring tube 31 can be recovered for making core samples, thereby avoiding the consumption of excess grouting materials when making core samples and reducing the difficulty of making grouting core samples; after the grouting amount in the core making tube 41 is solidified, the first shell 411 and the second shell 412 can be disassembled to take out the core sample. The coring difficulty is low, which is conducive to maintaining the integrity of the core sample finished product. The prepared core sample is used for compressive strength test, which can better control the on-site construction quality of the sleeve grouting.

[0044] The feeding component 2, the monitoring component 3 and the core-making component 4 are connected to the three-way connecting cavity 1 as a whole through the mortise and tenon structure. The components are tightly connected to effectively avoid leakage of grouting material during the detection process, and the assembly and disassembly operations are simple and convenient. The monitoring component 3 and the core-making component 4 can be reused multiple times after cleaning, further reducing costs.

[0045] A detection method using the above-mentioned sleeve grouting quality control device comprises the following steps:

[0046] Step S1: Apply an oily liquid agent to the feed pipe 21, the monitoring pipe 31, the core making pipe 41 and the inside of the three-way connection chamber 1, respectively install the feed pipe 21 and the core making pipe 41 at the left end and the lower end of the three-way connection chamber 1 through a mortise and tenon structure, insert the longitudinal blocking plate 22 into the longitudinal blocking groove 241 to close the passage between the feed pipe 21 and the three-way connection chamber 1, and insert the sealing blocking plate 42 into the transverse blocking groove 11 to close the passage between the core making pipe 41 and the three-way connection chamber 1;

[0047] Step S2: insert the feed port 211 of the feed pipe 21 into the grouting outlet of the steel sleeve, so that the exposed part of the feed assembly 2 is on the same plane as the outlet, and the feed pipe 21 and the monitoring pipe 31 are connected with the grouting space inside the sleeve to form a communicating vessel, and the grouting fluid overflows from the outlet and flows into the feed pipe 21;

[0048] Step S3: The longitudinal blocking plate 22 is pulled out of the longitudinal blocking groove 241, and the grouting fluid flows into the monitoring pipe 31 through the three-way connection cavity 1. The surface of the grouting fluid gradually rises under the grouting pressure until it is flush with the marking line 33, and the grouting construction is stopped;

[0049] Step S4: Observe whether the surface of the grouting material fluid in the monitoring tube 31 has a downward trend within a certain period of time. If the surface has no downward trend, it means that there is no leakage in the sleeve grouting construction, and the next step can be performed. If the surface has a downward trend, it means that there is leakage in the sleeve grouting construction, and grouting construction remedial measures should be taken immediately until the surface of the grouting material fluid stabilizes at the identification line 33 within a certain period of time;

[0050] Step S5: The sealing blocking plate 42 is pulled out from the transverse blocking groove 11 to open the passage between the core making tube 41 and the monitoring tube 31. The grouting material in the monitoring tube 31 flows into the core making tube 41 under the action of gravity. After the core making tube 41 is filled with the grouting material, the sealing blocking plate 42 is quickly inserted into the transverse sealing groove 413 to cut off the grouting material in the three-way connection cavity 1 and seal the top of the core making tube 41 at the same time;

[0051] Step S6: reinsert the longitudinal blocking plate 22 into the longitudinal blocking groove 241, cut off the grouting material at the connection between the feed pipe 21 and the three-way connection cavity 1, and seal the right end of the feed pipe 21, separate the feed assembly 2 from the three-way connection cavity 1, and leave the feed assembly 2 in the grouting outlet of the steel sleeve to block the grouting material at the grouting outlet to avoid overflow and waste of grouting material;

[0052] Step S7: Separate the core assembly 4 from the three-way connection cavity 1, wait for the grouting material in the core tube 41 to solidify, pull the sealing blocking plate 42 out of the transverse sealing groove 413, separate the first shell 411 from the second shell 412, and take out the grouting material core sample;

[0053] Step S8: Perform a compressive strength test on the grouting material core sample to detect the strength of the grouting material.

[0054] By using the detachable and combinable feeding component 2, monitoring component 3 and core making component 4, the grouting fullness and grouting material strength detection of the steel sleeve can be completed at one time, which simplifies the sleeve grouting quality detection process. On the premise of ensuring the accuracy and reliability of the sleeve grouting quality detection, the detection efficiency is improved, and the sleeve grouting construction time can be effectively shortened; and the entire detection operation is simple and fast, and the detection cost is low, which is conducive to its wide application in construction.

[0055] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A sleeve grouting quality control device, Features: The invention comprises a three-way connecting chamber (1), a feeding assembly (2) being detachably mounted on the left end of the three-way connecting chamber (1), the feeding assembly (2) comprising a feeding pipe (21) and a longitudinal blocking plate (22), a feeding port (211) being arranged on the left end of the feeding pipe (21), a longitudinal blocking groove (241) being arranged on the right end of the feeding pipe (21), and the longitudinal blocking plate (22) being inserted into the longitudinal blocking groove (241) to close the passage between the feeding pipe (21) and the three-way connecting chamber (1); A monitoring assembly (3) is provided at the upper end of the three-way connecting cavity (1), the monitoring assembly (3) comprising a transparent monitoring tube (31), the monitoring tube (31) being perpendicular to the feed tube (21), a plurality of air holes (321) being provided at the upper end of the monitoring tube (31), and a marking line (33) being provided on the outer wall of the monitoring tube (31); A core making assembly (4) is detachably mounted at the lower end of the three-way connecting chamber (1). The core making assembly (4) comprises a core making tube (41) and a sealing blocking plate (42). The core making tube (41) and the monitoring tube (31) are located on the same central axis. A transverse sealing groove (413) is provided at the upper end of the core making tube (41). A transverse blocking groove (11) is provided at the lower end of the three-way connecting chamber (1). The sealing blocking plate (42) is inserted into the transverse sealing groove (413) to seal the core making tube (41). The sealing blocking plate (42) is inserted into the transverse blocking groove (11) to close the passage between the core making tube (41) and the three-way connecting chamber (1).

2. The sleeve grouting quality control device according to claim 1, Features: The core making tube (41) comprises a first shell (411) and a second shell (412); the first shell (411) and the second shell (412) are connected as a whole through a mortise and tenon structure; after the first shell (411) and the second shell (412) are molded together, a rectangular column grouting material core sample can be produced.

3. The sleeve grouting quality control device according to claim 1 or 2, Features: The three-way connection chamber (1) is in a cubic shell-shaped structure; a square-to-round joint (34) is fixed at the upper end of the three-way connection chamber (1); the lower end of the monitoring tube (31) is fixed to the round interface end of the square-to-round joint (34); the left end and the lower end of the three-way connection chamber (1) are both provided with mortise and tenon grooves; the right end of the feed pipe (21) is provided with a round-to-square joint (24); the square interface end of the round-to-square joint (24) and the upper end of the core-making tube (41) are both provided with tenons; the feed pipe (21) and the core-making tube (41) are respectively connected to the left end and the lower end of the three-way connection chamber (1) through corresponding mortise and tenon structures.

4. The sleeve grouting quality control device according to claim 2, Features: The volume from the identification line (33) of the monitoring tube (31) to the transverse blocking groove (11) is equal to the volume of the core making tube (41).

5. The sleeve grouting quality control device according to claim 1, Features: The outer wall of the feed pipe (21) is provided with a sealing ring (23), and the cross section of the sealing ring (23) is a tooth-like structure with a gradually increasing diameter.

6. The sleeve grouting quality control device according to claim 1, Features: A detachable ventilation cap (32) is provided at the upper end of the monitoring tube (31), and an air hole (321) is arranged on the ventilation cap (32).

7. The sleeve grouting quality control device according to claim 1, Features: The three-way connecting chamber (1), the feeding component (2), the monitoring component (3) and the core making component (4) are all made of transparent plastic material.

8. A method for using the sleeve grouting quality control device according to claim 2, The following steps are involved: Step S1: applying an oily liquid agent to the inside of the feed pipe (21), the monitoring pipe (31), the core making pipe (41) and the three-way connecting chamber (1), installing the feed pipe (21), the monitoring pipe (31) and the core making pipe (41) at the left end, the upper end and the lower end of the three-way connecting chamber (1) respectively, inserting the longitudinal blocking plate (22) into the longitudinal blocking groove (241) to seal the passage between the feed pipe (21) and the three-way connecting chamber (1), inserting the sealing blocking plate (42) into the transverse blocking groove (11) to seal the passage between the core making pipe (41) and the three-way connecting chamber (1); Step S2: inserting the feed port (211) of the feed pipe (21) into the grouting outlet of the steel sleeve, so that the exposed part of the feed assembly (2) and the outlet are on the same plane, the feed pipe (21) and the monitoring pipe (31) are connected with the grouting space inside the sleeve, and the grouting material fluid overflows from the outlet and flows into the feed pipe (21); Step S3: The longitudinal blocking plate (22) is pulled out of the longitudinal blocking groove (241), and the grouting fluid flows into the monitoring pipe (31) through the three-way connection cavity (1). The surface of the grouting fluid gradually rises under the action of the grouting pressure until it is flush with the marking line (33), and then the grouting construction is stopped; Step S4: Observe whether the surface of the grouting material fluid in the monitoring tube (31) has a downward trend. If the surface has no downward trend, it means that there is no leakage in the sleeve grouting construction, and the next step can be performed. If the surface has a downward trend, it means that there is leakage in the sleeve grouting construction, and grouting construction remedial measures should be taken immediately until the surface of the grouting material fluid stabilizes at the marking line (33) within a certain period of time; Step S5: the sealing blocking plate (42) is pulled out from the transverse blocking groove (11), the passage between the core making tube (41) and the monitoring tube (31) is opened, and the grouting material in the monitoring tube (31) flows into the core making tube (41) under the action of gravity. After the core making tube (41) is filled with the grouting material, the sealing blocking plate (42) is quickly inserted into the transverse sealing groove (413) to cut off the grouting material in the three-way connection cavity (1) and seal the top of the core making tube (41) at the same time; Step S6: reinsert the longitudinal blocking plate (22) into the longitudinal blocking groove (241), cut off the grouting material at the connection portion between the feed pipe (21) and the three-way connection cavity (1), and seal the right end of the feed pipe (21), separate the feed assembly (2) from the three-way connection cavity (1), and leave the feed assembly (2) in the grouting outlet of the steel sleeve to block the grouting material at the grouting outlet; Step S7: Separate the core making assembly (4) from the three-way connection cavity (1), wait for the grouting material in the core making tube (41) to solidify, pull the sealing blocking plate (42) out of the transverse sealing groove (413), separate the first shell (411) and the second shell (412), and take out the grouting material core sample; Step S8: Perform a compressive strength test on the grouting material core sample to detect the strength of the grouting material.

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