Synchronous grouting pipe of shield tunneling machine

Abstract

The utility model belongs to the technical field of grouting pipes, and provides a shield tunneling machine synchronous grouting pipe which comprises a grouting pipeline. The connecting assemblies are arranged on the two sides of the grouting pipeline, each connecting assembly comprises an outer connecting ring located on one side of the grouting pipeline and fixedly installed, an outer thread is arranged on the outer wall of each outer connecting ring, an outer connecting cylinder is movably installed on one side of the grouting pipeline, and an inner thread is arranged on the inner wall of each outer connecting cylinder; the outer connecting ring is matched with the outer connecting cylinder, rapid connection between grouting pipelines is achieved, meanwhile, the sealing performance of connection between the grouting pipelines can be improved through the sealing rubber ring and the sealing rubber groove, and the stability of connection between the grouting pipelines can be improved through matching of the fixing bolt and the threaded hole; the situation that the connection position is loosened due to vibration is further avoided, the problems of connection loosening and leakage are effectively prevented, and the stable connection state can be kept even under the severe working conditions of high pressure, high vibration and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of grouting pipes, and particularly relates to a synchronous grouting pipe for a shield machine. Background Technique

[0002] In the field of tunnel engineering, as a key construction equipment, the synchronous grouting system of a shield machine plays a crucial role in maintaining the stability of the tunnel structure and controlling ground settlement. However, the design of traditional synchronous grouting pipes for shield machines has exposed a series of problems in practical applications. These problems not only affect the grouting effect, but also increase the construction difficulty and cost, and may even pose a potential threat to the safety and durability of tunnel engineering.

[0003] During the construction process of a shield machine, the grouting pipe needs to be frequently connected and disconnected from components such as grouting pumps and valves. These operations not only require the connection structure to have sufficient strength and sealing performance, but also need to have good dismountability and ease of use. However, traditional grouting pipes usually adopt simple connection methods such as threaded connections or flange connections. These connection methods are prone to problems such as loosening and leakage during long-term use, affecting the grouting effect and construction safety. Especially in harsh working conditions such as high pressure and high vibration, the problem of connection loosening is more prominent, bringing great inconvenience and risks to construction.

[0004] At the same time, after the grouting operation of traditional grouting pipes is completed, it is often difficult to effectively clean due to the presence of internal residues. These residues may include incompletely discharged grouting materials, hardened cement slurry blocks, and impurities accidentally dropped during the construction process. These residues not only occupy the effective volume of the grouting pipe, reducing the grouting efficiency, but may also become a breeding ground for bacteria, having an adverse impact on the performance of the grouting material. More importantly, the residues accumulated over a long time may form hard blockages, causing the grouting pipe to malfunction and even requiring overall replacement, increasing the construction cost and time cost. Content of the Utility Model

[0005] The purpose of the utility model is to provide a synchronous grouting pipe for a shield machine to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A synchronous grouting pipe for a shield machine, comprising:

[0008] A grouting pipeline;

[0009] A connecting assembly is arranged on both sides of the grouting pipe, and the connecting assembly includes an external connecting ring fixedly installed on one side of the grouting pipe, the outer wall of the external connecting ring is provided with an external thread, and an external connecting tube is movably installed on one side of the grouting pipe, and the inner wall of the external connecting tube is provided with an internal thread;

[0010] A scraper assembly is arranged on one side of the grouting pipe. The scraper assembly includes a cross support frame fixedly installed inside the grouting pipe, a support ring is movably installed on one side of the cross support frame, and four scrapers are fixedly installed on one side of the support ring.

[0011] Preferably, a sealing rubber ring is fixedly installed on one side of the grouting pipe, a sealing rubber groove is fixedly installed on the side of the grouting pipe away from the sealing rubber ring, the sealing rubber ring and the sealing rubber groove are arranged correspondingly, and the sealing rubber ring fits against the inner wall of the sealing rubber groove.

[0012] Preferably, an external connecting ring is fixedly installed on the outside of the grouting pipe near the sealing ring, and an external thread is provided on the outer wall of the external connecting ring. An external connecting tube is movably installed on the outside of the grouting pipe near the sealing groove through a bearing, and an internal thread is provided on the inner wall of the external connecting tube, and the external thread and the internal thread are threadedly engaged with each other.

[0013] Preferably, four U-shaped parts are fixedly installed on the outside of the grouting pipe near the external connecting tube, and L-shaped plates are hinged inside the four U-shaped parts. Fixing bolts are screwed on the side of the L-shaped plates away from the U-shaped parts.

[0014] Preferably, four fixing plates are fixedly installed on the outside of the grouting pipe near one side of the outer connecting ring, the four fixing plates are arranged corresponding to the four U-shaped parts, threaded holes are opened at the centers of the four fixing plates, and the fixing bolts and the threaded holes are threadedly engaged with each other.

[0015] Preferably, a cross support frame is fixedly installed on one side of the inside of the grouting pipe, a support ring is movably installed on one side of the cross support frame through a bearing, four scrapers are fixedly installed on one side of the support ring, and the four scrapers are all in contact with the inner wall of the grouting pipe.

[0016] Preferably, a driven bevel gear is movably mounted on the side of the cross support frame away from the support ring, the driven bevel gear is transmission connected to the shaft of the support ring, and a connecting rod is movably mounted on the side of the cross support frame inside the grouting pipe through a bearing.

[0017] Preferably, a driving bevel gear is fixedly installed on the connecting rod near the driven bevel gear, and the driving bevel gear is meshed with the driven bevel gear. A handwheel is movably installed on the outside of the grouting pipe near the connecting rod, and the handwheel is drivingly connected to the shaft of the connecting rod.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] (1) Through the cooperation of the outer connection ring and the outer connection cylinder, the present utility model realizes the rapid connection between grouting pipelines. At the same time, the sealing rubber ring and the sealing rubber groove can improve the sealing performance of the connection between grouting pipelines, and the cooperation of the fixing bolts and the threaded holes can improve the stability of the connection between grouting pipelines, further avoiding loosening at the connection caused by vibration and other situations, effectively preventing the occurrence of connection loosening and leakage problems. Even under harsh working conditions such as high pressure and high vibration, a stable connection state can be maintained, ensuring the grouting effect and construction safety.

[0020] (2) By arranging a movable support ring inside the grouting pipeline and a scraper on one side of the support ring, the present utility model can drive the scraper to clean the inner wall of the pipeline by simply rotating the handwheel on the outside, effectively scraping off the residues on the inner wall. This cleaning method not only reduces the labor intensity of construction workers but also greatly improves the cleaning efficiency and effect. Compared with the traditional manual cleaning method, the present application can more thoroughly remove the residues on the inner wall, restore the effective volume and flow performance of the grouting pipeline, and ensure the smooth progress of the grouting operation. This not only reduces the replacement frequency and cost expenditure of the grouting pipeline caused by blockage but also extends the service life of the grouting pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 is a schematic diagram of the structure of the outer connection cylinder of the present utility model;

[0023] Figure 3 is a schematic diagram of the structure of the outer connection ring of the present utility model;

[0024] Figure 4 is a schematic diagram of the scraper installation structure of the present utility model.

[0025] In the figure: 1, grouting pipeline; 2, connection assembly; 21, sealing rubber ring; 22, sealing rubber groove; 23, outer connection ring; 24, external thread; 25, outer connection cylinder; 26, internal thread; 27, U-shaped piece; 28, L-shaped plate; 29, fixing bolt; 210, fixing plate; 211, threaded hole; 3, scraping assembly; 31, cross support frame; 32, support ring; 33, scraper; 34, driven bevel gear; 35, connecting rod; 36, driving bevel gear; 37, handwheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] Embodiment 1:

[0028] Please refer to Figure 1 - Figure 3 As shown in the figure, a synchronous grouting pipe for a shield machine includes:

[0029] A grouting pipeline 1;

[0030] A connection assembly 2 is arranged on both sides of the grouting pipeline 1. The connection assembly 2 includes an outer connection ring 23 fixedly installed on one side of the grouting pipeline 1. An external thread 24 is arranged on the outer wall of the outer connection ring 23. An outer connection cylinder 25 is movably installed on one side of the grouting pipeline 1. An internal thread 26 is arranged on the inner wall of the outer connection cylinder 25;

[0031] A scraping assembly 3 is arranged on one side inside the grouting pipeline 1. The scraping assembly 3 includes a cross support frame 31 fixedly installed inside the grouting pipeline 1. A support ring 32 is movably installed on one side of the cross support frame 31. Four scraping plates 33 are fixedly installed on one side of the support ring 32.

[0032] Specifically, a sealing rubber ring 21 is fixedly installed on one side inside the grouting pipeline 1. A sealing rubber groove 22 is fixedly installed on the side of the grouting pipeline 1 away from the sealing rubber ring 21. The sealing rubber ring 21 and the sealing rubber groove 22 are arranged correspondingly. The sealing rubber ring 21 fits with the inner wall of the sealing rubber groove 22. An outer connection ring 23 is fixedly installed on the outside of the grouting pipeline 1 near the sealing rubber ring 21. An external thread 24 is arranged on the outer wall of the outer connection ring 23. An outer connection cylinder 25 is movably installed on the outside of the grouting pipeline 1 near the sealing rubber groove 22 through a bearing. An internal thread 26 is arranged on the inner wall of the outer connection cylinder 25. The external thread 24 and the internal thread 26 are threadedly engaged with each other.

[0033] As can be seen from the above, the sealing rubber ring 21 is inserted into the sealing rubber groove 22 to improve the sealing performance between the grouting pipelines 1. At the same time, through the cooperation of the external thread 24 and the internal thread 26, the outer connection cylinder 25 is installed on the outside of the outer connection ring 23 to connect the two grouting pipelines 1.

[0034] Specifically, four U-shaped members 27 are fixedly installed on the outside of the grouting pipe 1 near one side of the outer connection cylinder 25. L-shaped plates 28 are hinged inside the four U-shaped members 27. Fixing bolts 29 are installed on the sides of the L-shaped plates 28 away from the U-shaped members 27 by screwing. Four fixing plates 210 are fixedly installed on the outside of the grouting pipe 1 near one side of the outer connection ring 23. The four fixing plates 210 are arranged corresponding to the four U-shaped members 27. Threaded holes 211 are opened at the centers of the four fixing plates 210. The fixing bolts 29 are screwed with the threaded holes 211.

[0035] As can be seen from the above, the fixing bolts 29 are screwed into the threaded holes 211 to further improve the stability of the pipeline connection. During specific use, the sealing rubber ring 21 of one grouting pipe 1 is inserted into the sealing rubber groove 22 of another grouting pipe 1, then the outer connection cylinder 25 is screwed on the outside of the outer connection ring 23, and then the fixing bolts 29 are screwed into the threaded holes 211 to complete the connection.

[0036] Embodiment 2:

[0037] Please refer to Figure 1 and Figure 3 - Figure 4 As shown in the figure, a cross support frame 31 is fixedly installed on one side inside the grouting pipe 1. A support ring 32 is movably installed on one side of the cross support frame 31 through a bearing. Four scraping plates 33 are fixedly installed on one side of the support ring 32. The four scraping plates 33 are all in contact with the inner wall of the grouting pipe 1.

[0038] Specifically, a driven bevel gear 34 is movably installed on the side of the cross support frame 31 away from the support ring 32. The driven bevel gear 34 is in shaft transmission connection with the support ring 32. A connecting rod 35 is movably installed on one side inside the grouting pipe 1 near the cross support frame 31 through a bearing. A driving bevel gear 36 is fixedly installed on the side of the connecting rod 35 close to the driven bevel gear 34. The driving bevel gear 36 meshes with the driven bevel gear 34. A hand wheel 37 is movably installed on the outside of the grouting pipe 1 near the connecting rod 35. The hand wheel 37 is in shaft transmission connection with the connecting rod 35.

[0039] As can be seen from the above, the cross support frame 31 plays a role in supporting the force. The support ring 32 is used to drive the scraping plates 33 to move, so as to realize the function of scraping materials. The driven bevel gear 34 can drive the support ring 32 to rotate. The connecting rod 35 is driven by the hand wheel 37 to drive the driving bevel gear 36 to rotate, and then the driving bevel gear 36 drives the driven bevel gear 34 to rotate, thereby driving the support ring 32 to rotate.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A synchronous grouting pipe for a shield machine, characterized in that: include: Grouting pipe (1); A connecting assembly (2), the connecting assembly (2) being arranged on both sides of the grouting pipe (1), the connecting assembly (2) comprising an external connecting ring (23) fixedly installed on one side of the grouting pipe (1), the outer wall of the external connecting ring (23) being provided with an external thread (24), and an external connecting tube (25) being movably installed on one side of the grouting pipe (1), the inner wall of the external connecting tube (25) being provided with an internal thread (26); A scraper assembly (3) is arranged on one side of the interior of a grouting pipe (1), and the scraper assembly (3) comprises a cross support frame (31) fixedly installed inside the grouting pipe (1), a support ring (32) is movably installed on one side of the cross support frame (31), and four scrapers (33) are fixedly installed on one side of the support ring (32).

2. A synchronous grouting pipe for a shield machine according to claim 1, characterized in that: A sealing rubber ring (21) is fixedly installed on one side of the interior of the grouting pipe (1), and a sealing rubber groove (22) is fixedly installed on the side of the grouting pipe (1) away from the sealing rubber ring (21). The sealing rubber ring (21) and the sealing rubber groove (22) are arranged correspondingly, and the sealing rubber ring (21) fits the inner wall of the sealing rubber groove (22).

3. A synchronous grouting pipe for a shield machine according to claim 2, characterized in that: An external connection ring (23) is fixedly mounted on the outside of the grouting pipe (1) near the sealing rubber ring (21), and an external thread (24) is arranged on the outer wall of the external connection ring (23). An external connection tube (25) is movably mounted on the outside of the grouting pipe (1) near the sealing rubber groove (22) via a bearing, and an internal thread (26) is arranged on the inner wall of the external connection tube (25), and the external thread (24) and the internal thread (26) are threadedly engaged with each other.

4. A synchronous grouting pipe for a shield machine according to claim 3, characterized in that: Four U-shaped parts (27) are fixedly installed on the outside of the grouting pipe (1) near the external connection tube (25), and L-shaped plates (28) are hinged inside the four U-shaped parts (27). Fixing bolts (29) are screwed on the side of the L-shaped plates (28) away from the U-shaped parts (27) through threads.

5. A synchronous grouting pipe for a shield machine according to claim 4, characterized in that: Four fixing plates (210) are fixedly installed on the outside of the grouting pipe (1) near the outer connecting ring (23), the four fixing plates (210) are arranged corresponding to the four U-shaped parts (27), and threaded holes (211) are opened at the centers of the four fixing plates (210), and the fixing bolts (29) and the threaded holes (211) are threadedly engaged with each other.

6. A synchronous grouting pipe for a shield machine according to claim 1, characterized in that: A cross support frame (31) is fixedly mounted on one side of the interior of the grouting pipe (1); a support ring (32) is movably mounted on one side of the cross support frame (31) via a bearing; four scrapers (33) are fixedly mounted on one side of the support ring (32); and the four scrapers (33) are all in contact with the inner wall of the grouting pipe (1).

7. A synchronous grouting pipe for a shield machine according to claim 6, characterized in that: A driven bevel gear (34) is movably mounted on the side of the cross support frame (31) away from the support ring (32), and the driven bevel gear (34) is connected to the shaft of the support ring (32) through transmission. A connecting rod (35) is movably mounted on the side of the grouting pipe (1) close to the cross support frame (31) through a bearing.

8. A synchronous grouting pipe for a shield machine according to claim 7, characterized in that: A driving bevel gear (36) is fixedly mounted on the side of the connecting rod (35) close to the driven bevel gear (34), and the driving bevel gear (36) is meshed with the driven bevel gear (34). A hand wheel (37) is movably mounted on the outside of the grouting pipe (1) close to the side of the connecting rod (35), and the hand wheel (37) is drivingly connected to the shaft of the connecting rod (35).

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