Multi-connecting device for sounding pipes

Abstract

The utility model relates to the technical field of sounding pipe connection, in particular to a multiple connecting device for sounding pipes, which comprises a first sounding pipe and a second sounding pipe, the first sounding pipe is coaxially and fixedly connected with a fixing ring, one end of the first sounding pipe close to the fixing ring is provided with a welding port, and the other end of the first sounding pipe close to the fixing ring is provided with a connecting piece. A connecting mechanism used for connecting the first sounding pipe and the second sounding pipe in multiple connecting modes is arranged between the first sounding pipe and the second sounding pipe. According to the utility model, under the cooperation of the first sounding pipe, the second sounding pipe, the clamping sleeve, the fixing ring, the holding sheet and the rotary sealing cover, the connection modes are diversified, field welding or direct clamping sleeve threaded connection can be selectively adopted, the influence of weather conditions is avoided, and the welding and clamping sleeve threaded connection modes are simultaneously adopted, so that the welding and clamping sleeve threaded connection modes are combined; and it is ensured that the connected sounding pipe has good sealing performance, so that the reliability of normal work of the sounding pipe is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of acoustic detection pipe connection, in particular to a multiple connection device for acoustic detection pipes. Background Art

[0002] The sonic detection tube is a sonic wave detection tube that uses sound waves to detect the quality of a pile. The sonic detection tube is the channel for the probe to enter the interior of the pile body when the ultrasonic detection method is used for cast-in-place piles. It is an important component of the ultrasonic detection system for cast-in-place piles. The way it is embedded in the pile and its layout on the cross section of the pile will directly affect the detection results. Therefore, when designing the piles to be tested, the layout and embedding method of the sonic detection tube should be marked on the drawings. During construction, the quality of the embedding and the thickness of the tube wall should be strictly controlled to ensure that the detection work goes smoothly.

[0003] In the prior art, the connection of the acoustic detection pipe is usually carried out by welding. This method has the advantages of low cost and convenient operation. In order to ensure that the acoustic detection pipe can work normally after welding, it is also necessary to carry out appearance inspection and pressure test to ensure that there are no cracks or leaks at the connection, which affects the construction efficiency.

[0004] For this purpose, we have designed a multiple connection device for the acoustic detection tube. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that in order to ensure that the ultrasonic detection pipe can work normally after welding, it is necessary to carry out appearance inspection and pressure test to ensure that there are no cracks or leaks at the connection, which affects the construction efficiency, and to propose a multiple connection device for ultrasonic detection pipes.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A multiple connection device for acoustic detection tubes includes a first acoustic detection tube and a second acoustic detection tube, wherein a fixing ring is coaxially fixedly connected to the first acoustic detection tube, a welding port is provided at one end of the first acoustic detection tube close to the fixing ring, and a connecting mechanism is provided between the first acoustic detection tube and the second acoustic detection tube for connecting the first acoustic detection tube and the second acoustic detection tube in a variety of connection modes.

[0008] Preferably, a first external thread is provided on a side of the fixing ring close to the welding port.

[0009] Preferably, the connecting mechanism comprises:

[0010] A ferrule, a plurality of clamping sheets and a sealing gasket, wherein the ferrule is coaxially sleeved on the second acoustic detection tube, an end of the ferrule close to the welding port on the first acoustic detection tube is provided with a first internal thread matched with the first external thread, a plurality of clamping sheets are evenly distributed in a circular array at an end of the ferrule away from the welding port on the first acoustic detection tube, and gaps are left between the plurality of clamping sheets, the sealing gasket is arranged on the inner side of the plurality of clamping sheets, and the sealing gasket is coaxially arranged with the ferrule, and a second external thread is arranged on the outer side of the plurality of clamping sheets;

[0011] A screw-on cover and a second internal thread, wherein the screw-on cover is coaxially sleeved on the second acoustic detection tube, the ferrule is located between the screw-on cover and the fixing ring, and the end of the screw-on cover close to the clamping plate is provided with a second internal thread matched with the second external thread.

[0012] Preferably, the holding piece is made of elastic alloy material.

[0013] Preferably, the ferrule and the screw-on cover are provided with screw-on holes for easy screwing.

[0014] Preferably, a sealing rubber pad is provided at one end of the screw-on cover away from the clamping sheet.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model has various connection modes by cooperating the first acoustic detection tube, the second acoustic detection tube, the ferrule, the fixing ring, the clamping plate and the screw-on cover. On-site welding or direct ferrule thread connection can be selectively adopted, which is not affected by weather conditions. At the same time, for the reliability of the acoustic detection tube, both welding and ferrule thread connection are used at the same time.

[0017] 2. The utility model fixes one end of a plurality of holding pieces with a ferrule, and leaves gaps between the plurality of holding pieces. By rotating the screw-on cover, the second internal thread on the inner wall of the screw-on cover is threadedly connected with the second external thread on the holding piece. During the process of threaded connection between the second internal thread and the second external thread on the holding piece, the holding piece and the sealing gasket are pressed downward at the welding joint of the first acoustic detection tube and the second acoustic detection tube, and the sealing gasket is fully filled at the welding joint of the first acoustic detection tube and the second acoustic detection tube, ensuring that the connected acoustic detection tubes have good sealing properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a multiple connection device for an acoustic detection tube proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the connection states of various connection devices of an acoustic detection tube proposed by the utility model;

[0020] Figure 3This is a schematic diagram of the first acoustic detection tube structure of a multiple connection device for an acoustic detection tube proposed by the utility model;

[0021] Figure 4 The utility model provides a schematic diagram of the sleeve structure of a multiple connection device for an acoustic detection tube.

[0022] In the figure: 1. first sonic detection tube; 2. second sonic detection tube; 3. fixing ring; 4. first external thread; 5. welding port; 6. ferrule; 7. first internal thread; 8. clamping plate; 9. second external thread; 10. sealing gasket; 11. screw cap; 12. second internal thread. DETAILED DESCRIPTION

[0023] Reference Figure 1-Figure 4 A multiple connection device for an acoustic detection tube comprises a first acoustic detection tube 1 and a second acoustic detection tube 2. A fixing ring 3 is coaxially fixedly connected to the first acoustic detection tube 1. A welding port 5 is provided at one end of the first acoustic detection tube 1 close to the fixing ring 3. A connecting mechanism is provided between the first acoustic detection tube 1 and the second acoustic detection tube 2. The connecting mechanism is used to connect the first acoustic detection tube 1 and the second acoustic detection tube 2 in a variety of connection modes, such as welding and ferrule thread connection or a combination of the two connection modes;

[0024] The connection mechanism includes a ferrule 6, a plurality of holding pieces 8 and a sealing gasket 10. A first external thread 4 is provided on one side of the fixing ring 3 close to the welding port 5. The ferrule 6 is coaxially sleeved on the second acoustic detection tube 2. An end of the ferrule 6 close to the welding port 5 on the first acoustic detection tube 1 is provided with a first internal thread 7 adapted to the first external thread 4.

[0025] A plurality of holding pieces 8 are evenly distributed in a circular array at one end of the ferrule 6 away from the welding port 5 on the first acoustic detection tube 1, and gaps are left between the plurality of holding pieces 8. The sealing gasket 10 is arranged on the inner side of the plurality of holding pieces 8, and the sealing gasket 10 is arranged coaxially with the ferrule 6. The outer side of the plurality of holding pieces 8 is provided with a second external thread 9. By docking the welding port 5 of the first acoustic detection tube 1 and the second acoustic detection tube 2, the ferrule 6 on the second acoustic detection tube 2 is moved to the fixing ring 3 after welding or directly sliding, and the ferrule 6 is rotated so that the first internal thread 7 on the inner wall of the ferrule 6 is threadedly connected with the first external thread 4 on the fixing ring 3. At this time, the plurality of holding pieces 8 cover the welding port 5 of the first acoustic detection tube 1 and the second acoustic detection tube 2;

[0026] The connecting mechanism also includes a screw-on cover 11 and a second internal thread 12. The screw-on cover 11 is coaxially sleeved on the second acoustic detection tube 2. The ferrule 6 is located between the screw-on cover 11 and the fixing ring 3. The end of the screw-on cover 11 close to the clamping plate 8 is provided with a second internal thread 12 matched with the second external thread 9. Then, the screw-on cover 11 on the second acoustic detection tube 2 is slid to the clamping plate 8. By rotating the screw-on cover 11, the second internal thread 12 on the inner wall of the screw-on cover 11 is threadedly connected with the second external thread 9 on the clamping plate 8. During the threaded connection process between the second internal thread 12 and the second external thread 9 on the clamping plate 8, the clamping plate 8 and the sealing gasket 10 are squeezed downward at the welding port 5 of the first acoustic detection tube 1 and the second acoustic detection tube 2, so that the sealing gasket 10 is fully filled at the welding port 5 of the first acoustic detection tube 1 and the second acoustic detection tube 2.

[0027] Reference Figure 1 and Figure 4 The material of the clamping piece 8 is an elastic alloy material. The effect of this arrangement is that since there are gaps between the multiple clamping pieces 8, by rotating the screw-on cover 11, in the process of threaded connection between the second internal thread 12 on the inner wall of the screw-on cover 11 and the second external thread 9 on the clamping piece 8, the clamping piece 8 and the sealing gasket 10 are pressed downward at the welding port 5 of the first acoustic detection tube 1 and the second acoustic detection tube 2.

[0028] Reference Figure 1 and Figure 2 The ferrule 6 and the screw-on cover 11 are provided with tightening holes. The effect of this arrangement is to facilitate the staff to tighten and install the acoustic detection tube and facilitate the tightening operation. The end of the screw-on cover 11 away from the clamping piece 8 is provided with a sealing gasket to ensure the sealing of the acoustic detection tube after connection.

[0029] The working principle of the utility model is as follows:

[0030] By butting the welding joints 5 of the first acoustic detection tube 1 and the second acoustic detection tube 2, after welding or directly sliding the ferrule 6 on the second acoustic detection tube 2 to the fixed ring 3, by rotating the ferrule 6, the first internal thread 7 on the inner wall of the ferrule 6 is threadedly connected with the first external thread 4 on the fixed ring 3, at this time, a plurality of holding pieces 8 cover the welding joints 5 of the first acoustic detection tube 1 and the second acoustic detection tube 2;

[0031] Then slide the screw-on cover 11 on the second acoustic detection tube 2 to the clamping piece 8. Since one end of the plurality of clamping pieces 8 is fixedly connected to the ferrule 6 and gaps are left between the plurality of clamping pieces 8, the screw-on cover 11 is rotated to make the second internal thread 12 on the inner wall of the screw-on cover 11 threadably connected with the second external thread 9 on the clamping piece 8. During the threaded connection process between the second internal thread 12 and the second external thread 9 on the clamping piece 8, the clamping piece 8 and the sealing gasket 10 are squeezed downward at the welding joint 5 of the first acoustic detection tube 1 and the second acoustic detection tube 2, and the sealing gasket 10 fully fills the welding joint 5 of the first acoustic detection tube 1 and the second acoustic detection tube 2.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multiple connection device for acoustic detection tubes, comprising a first acoustic detection tube (1) and a second acoustic detection tube (2), characterized in that: A fixing ring (3) is coaxially fixedly connected to the first acoustic detection tube (1); a welding port (5) is provided at one end of the first acoustic detection tube (1) close to the fixing ring (3); and a connecting mechanism for connecting the first acoustic detection tube (1) and the second acoustic detection tube (2) in a variety of connection modes is provided between the first acoustic detection tube (1) and the second acoustic detection tube (2).

2. The acoustic detection tube multiple connection device according to claim 1, characterized in that: A first external thread (4) is provided on one side of the fixing ring (3) close to the welding port (5).

3. The acoustic detection tube multiple connection device according to claim 2, characterized in that: The connecting mechanism comprises: A ferrule (6), a plurality of clamping sheets (8) and a sealing gasket (10), wherein the ferrule (6) is coaxially sleeved on the second acoustic detection tube (2), and an end of the ferrule (6) close to the welding port (5) on the first acoustic detection tube (1) is provided with a first internal thread (7) adapted to the first external thread (4), and a plurality of clamping sheets (8) are evenly distributed in a circular array at an end of the ferrule (6) away from the welding port (5) on the first acoustic detection tube (1), and gaps are left between the plurality of clamping sheets (8), and the sealing gasket (10) is arranged on the inner side of the plurality of clamping sheets (8), and the sealing gasket (10) is coaxially arranged with the ferrule (6), and a second external thread (9) is arranged on the outer side of the plurality of clamping sheets (8); A screw-on cover (11) and a second internal thread (12), wherein the screw-on cover (11) is coaxially sleeved on the second acoustic detection tube (2), the ferrule (6) is located between the screw-on cover (11) and the fixing ring (3), and the end of the screw-on cover (11) close to the clamping plate (8) is provided with a second internal thread (12) adapted to the second external thread (9).

4. The acoustic detection tube multiple connection device according to claim 3, characterized in that: The material of the clamping piece (8) is elastic alloy material.

5. The acoustic detection tube multiple connection device according to claim 3, characterized in that: The ferrule (6) and the screw-on cover (11) are provided with screw-on holes for easy screwing.

6. The acoustic detection tube multiple connection device according to claim 3, characterized in that: A sealing rubber pad is provided at one end of the screw-on cover (11) away from the clamping sheet (8).

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