Bridge pile foundation sounding pipe connecting structure of highway substructure

Abstract

The utility model discloses an expressway substructure bridge pile foundation sounding pipe connecting structure, which belongs to the technical field of expressway bridge pile foundation detection equipment and comprises a pouring reinforcement cage body. The pouring reinforcement cage body comprises a plurality of reinforcing bars which are vertically and annularly distributed, thin reinforcing bar rings and thick reinforcing bar rings, the thin reinforcing bar rings and the thick reinforcing bar rings surround the outer peripheries and the inner peripheries of the reinforcing bars, and a plurality of connecting pieces are vertically installed in the pouring reinforcement cage body at intervals; the outer side face of the chuck is an arc face, an arc-shaped clamping groove is machined in the middle of the arc face, and the arc-shaped clamping groove is embedded into the inner side of the thick steel bar ring with the corresponding height. The connecting structure is based on the connecting piece, the connecting area of the upper sounding pipe and the lower sounding pipe is sealed through the protection assembly, the connecting structure is suitable for connecting a plurality of sounding pipes at the same height, stability and safety are good, the phenomenon that joints in the connecting area are damaged and dislocated can be reduced, and long-term usability of the sounding pipes is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of highway bridge pile foundation detection equipment, and more specifically to a highway substructure bridge pile foundation acoustic detection pipe connection structure. Background Art

[0002] In the prior art, the sonic detection tube is the channel through which the probe enters the interior of the pile body when ultrasonic testing is performed on concrete cast-in-place pile foundations. The weak pile foundation pressure signal is amplified by connecting to an external recorder amplifier and a monitor, and then the pressure change is recorded by the monitor. During the actual pre-buried construction of the sonic detection tube, we need to ensure that this channel does not leak water or slurry to ensure the subsequent detection work can be carried out, especially at the location of the bridge of the lower structure of the highway. Due to the high pressure, the traditional connection method of adjacent sonic detection tubes of the pile foundation is mostly welded. After a period of pouring, the joints in the junction area are easily damaged and dislocated, and mud flows into them, making the sonic detection tube unusable. Utility Model Content

[0003] The purpose of the utility model is to provide a highway substructure bridge pile foundation acoustic detection pipe connection structure, which is based on a connector and seals the junction area of ​​the upper and lower acoustic detection pipes through a protective component. It is suitable for connecting multiple acoustic detection pipes at the same height, has good stability and safety, can reduce the phenomenon of joint damage and dislocation in the junction area, and ensure the long-term availability of the acoustic detection pipe.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A highway substructure bridge pile foundation acoustic detection pipe connection structure, including a cast steel cage, the cast steel cage including a plurality of steel bars distributed in a vertical ring and thin steel rings and thick steel rings surrounding the outer and inner peripheries of the plurality of steel bars, a plurality of connectors are installed at intervals in the cast steel cage, the connectors include two symmetrical left and right chucks, the outer side surface of the chuck is an arc surface and an arc groove is processed at the middle position of the arc surface, the arc groove is embedded in the inner side of a thick steel ring of a corresponding height, the inner side surface of the chuck is a rectangular surface and threaded rods are inserted into the front and rear ends of the rectangular surface, and both ends of the threaded rod are screwed into the threaded holes in the chuck and limited by nuts.

[0006] As a further optimization of the solution of the present application, support rods are provided between the threaded rods.

[0007] As a further optimization of the scheme of the present application, a number of connecting sleeves are discretely processed on the surface of the chuck, an upper acoustic detection tube is inserted above the connecting sleeve and a lower acoustic detection tube is inserted below the connecting sleeve, a protective component is provided inside the connecting sleeve, the protective component includes a support ring welded at the middle position, annular grooves are processed on the upper and lower surfaces of the support ring and a sealing gasket is embedded and installed inside the annular groove, two annular grooves spaced apart from each other are opened on the inner wall of the connecting sleeve at the upper and lower ends of the support ring, a sealing ring is installed inside the annular groove, and a through internal thread is processed on the inner wall of the connecting sleeve.

[0008] As a further optimization of the solution of the present application, external threads are processed at the intersection of the upper and lower ends of the upper and lower acoustic detection tubes.

[0009] As a further optimization of the solution of the present application, the distance between the two symmetrical chucks on the left and right is adjusted by nuts at both ends of the threaded rod.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model is designed with two symmetrical left and right chuck structures with adjustable spacing, which is convenient for installation inside the cast steel cage. By clamping on the inner side of the thick steel ring and combining with the limiting operation of the nut, the stability of the overall installation is improved, thereby ensuring the stability of all connecting sleeves;

[0012] The utility model can achieve sealing operation on the joints in the junction area of ​​the upper and lower acoustic detection pipes by connecting the upper and lower sealing pads and four sealing ring structures inside the sleeve, thereby reducing the damage and misalignment of the connection positions of the upper and lower acoustic detection pipes after pouring, and avoiding the inflow of mud, which makes the acoustic detection pipes unusable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the installation of the connection structure of the utility model (part of the cast steel cage is removed);

[0014] Figure 2 This is a schematic diagram of the internal structure of the connecting sleeve of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the utility model when the chuck is folded;

[0016] In the figure: 1. steel bar; 2. thin steel ring; 3. thick steel ring; 4. chuck; 5. arc groove; 6. threaded rod; 7. nut; 8. support rod; 9. connecting sleeve; 10. upper acoustic detection tube; 11. lower acoustic detection tube; 12. sealing ring; 13. sealing gasket; 14. support ring; 15. internal thread. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the utility model easy to understand, the utility model is further explained below with reference to specific diagrams.

[0018] In order to solve the problem that the existing adjacent acoustic detection pipes are connected by welding, after pouring, the joints in the intersection area are easily damaged and misaligned, and mud flows into them, making the acoustic detection pipes unusable. Figure 1 As shown, the present application includes a cast steel bar cage, which includes a plurality of steel bars 1 distributed in a vertical ring shape and thin steel bar rings 2 and thick steel bar rings 3 surrounding the outer and inner peripheries of the plurality of steel bars 1. A plurality of connectors are installed at intervals in the cast steel bar cage, and the connectors include two symmetrical left and right chucks 4. The outer side surface of the chuck 4 is an arc surface, and an arc-shaped groove 5 is processed at the middle position of the arc surface. The arc-shaped groove 5 is embedded in the inner side of the thick steel bar ring 3 of the corresponding height. The inner side surface of the chuck 4 is a rectangular surface, and the front and rear ends of the rectangular surface are penetrated by threaded rods 6. Both ends of the threaded rod 6 are screwed into the threaded holes in the chuck 4 and are limited by nuts 7. Support rods 8 are provided between the threaded rods 6.

[0019] like Figure 2 As shown, a plurality of connecting sleeves 9 are discretely processed on the surface of the chuck 4, an upper acoustic detection tube 10 is inserted above the connecting sleeve 9 and a lower acoustic detection tube 11 is inserted below the connecting sleeve 9, a protection component is provided inside the connecting sleeve 9, and the protection component includes a support ring 14 welded at the middle position, annular grooves are processed on the upper and lower surfaces of the support ring 14, and a sealing gasket 13 is embedded and installed inside the annular groove, two annular grooves spaced apart from each other are opened on the inner wall of the connecting sleeve 9 at the upper and lower ends of the support ring 14, a sealing ring 12 is installed inside the annular groove, a through internal thread 15 is processed on the inner wall of the connecting sleeve 9, and external threads are processed at the intersection of the upper and lower ends of the upper and lower acoustic detection tubes 10 and the lower acoustic detection tubes 11.

[0020] Specifically, Figure 3 As shown, the spacing between the two symmetrical chucks 4 on the left and right is adjusted by the nuts 7 at both ends of the threaded rod 6, and the folded connecting piece is placed inside the cast steel cage. After reaching the position of the thick steel ring 3 at the corresponding height, the chucks 4 are unfolded to both sides, and the nut 7 is used to limit the arc groove 5 so that the arc groove 5 is embedded in the inner side of the thick steel ring 3 at the corresponding height. The connecting sleeve 9 is processed in advance according to the installation position of the acoustic detection tube, and multiple upper acoustic detection tubes 10 and lower acoustic detection tubes 11 can be connected at the same installation height. The upper acoustic detection tube 10 and the lower acoustic detection tube 11 are respectively screwed into the inner thread 15 of the connecting sleeve 9 through the external thread. The lower end of the upper acoustic detection tube 10 and the upper end of the lower acoustic detection tube 11 are both pressed tightly against the upper and lower ends of the support ring 14, and the sealing gasket 13 is used for primary sealing, and then the upper and lower sealing rings 12 of the cylinder wall are used for secondary and tertiary sealing, which improves the sealing effect as a whole. The chuck 4 is clamped with the inner side of the thick steel ring 3 to improve the installation stability of the lower end of the upper acoustic detection tube 10 and the lower acoustic detection tube 11.

[0021] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0022] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A highway substructure bridge pile foundation acoustic detection pipe connection structure, comprising a cast steel cage, wherein the cast steel cage comprises a plurality of vertically annularly distributed steel bars and thin steel rings and thick steel rings surrounding the outer and inner peripheries of the plurality of steel bars, characterized in that: A plurality of connecting parts are installed at intervals in the upper and lower parts inside the cast steel bar cage, and the connecting parts include two symmetrical chucks on the left and right. The outer side surface of the chuck is an arc surface, and an arc groove is processed at the middle position of the arc surface. The arc groove is embedded in the inner side of a thick steel bar ring of corresponding height. The inner side surface of the chuck is a rectangular surface, and the front and rear ends of the rectangular surface are both penetrated by threaded rods. Both ends of the threaded rod are screwed into the threaded holes inside the chuck and are limited by nuts.

2. The highway substructure bridge pile foundation acoustic detection pipe connection structure according to claim 1, characterized in that: Support rods are arranged between the threaded rods.

3. The highway substructure bridge pile foundation acoustic detection pipe connection structure according to claim 2, characterized in that: The chuck surface is discretely processed with a number of connecting sleeves, an upper acoustic detection tube is inserted above the connecting sleeve and a lower acoustic detection tube is inserted below the connecting sleeve, a protective component is provided inside the connecting sleeve, the protective component includes a support ring welded at the middle position, annular grooves are processed on the upper and lower surfaces of the support ring and a sealing gasket is embedded and installed inside the annular groove, two annular grooves spaced apart from each other are opened on the inner wall of the connecting sleeve at the upper and lower ends of the support ring, a sealing ring is installed inside the annular groove, and a through internal thread is processed on the inner wall of the connecting sleeve.

4. The highway substructure bridge pile foundation acoustic detection pipe connection structure according to claim 3, characterized in that: External threads are processed at the intersection positions of the upper and lower ends of the upper and lower acoustic detection tubes.

5. The highway substructure bridge pile foundation acoustic detection pipe connection structure according to claim 4, characterized in that: The distance between the two symmetrical chucks on the left and right is adjusted by nuts at both ends of the threaded rod.

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