Connecting structure of prestressed concrete pipe pile

Abstract

The utility model relates to the field of pipe pile connection, in particular to a connecting structure of prestressed concrete pipe piles, which comprises a base arranged between two pipe piles, relaxation mechanisms and the like are arranged on two sides of the base, and the relaxation mechanisms rotate through screws to enable spherical abutting blocks at the ends of three guide rods to abut against the inner walls of the pipe piles. Compared with the prior art, the connecting piece has the advantages that a flange connection mode is not abandoned, on the basis, the mutual supporting effect is enhanced on the whole by expanding the contact degree of the two pipe piles after connection, and therefore after external force comes, the bearing effect is sufficient, the flange structure is protected against damage, and the service life of the pipe piles is prolonged. Therefore, a base with relaxation mechanisms on the two sides is additionally arranged between the two tubular piles, the three spherical abutting blocks are tightly attached to the interiors of positioning grooves in the inner walls of the ports of the tubular piles, and the connection part which originally tightly depends on contact of flanges and bolts is further expanded into the tubular piles.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pipe pile connection, specifically refers to a kind of connecting structure of prestressed concrete pipe pile. BACKGROUND

[0002] Pipe pile is a kind of basic engineering component, mainly divided into concrete and steel two kinds of building materials are made;

[0003] Pipe pile is a long hollow pipe, they are fixed and spliced together by flange through end setting;

[0004] However, flange connection is mainly through the fastening and support of multiple bolts of two spliced flanges, pipe pile length is longer, very thin flange structure, when one side pipe pile receives side direction force, due to the proportion of spliced bearing is smaller, bolt is very unbearable, and is broken by force, thereby greatly reduce the stability of pipe pile connection;

[0005] Therefore, a connecting structure of prestressed concrete pipe pile is provided. CONTENT OF UTILITY MODEL

[0006] I. Technical problems to be solved

[0007] The technical problem to be solved by the utility model is that there are still unstable factors in splicing concrete pipe pile by flange structure.

[0008] II. Technical scheme

[0009] To solve the above technical problems, the technical scheme provided by the utility model is as follows: a connecting structure of prestressed concrete pipe pile, which comprises pipe pile interface ends installed together, and further comprises:

[0010] A base is installed between the pipe pile interface ends, flanges are connected on both sides of the base and the pipe pile interface ends, and the pipe pile interface ends and the base are installed together by bolt and nut fixing assemblies.

[0011] Relaxation mechanisms are connected on both sides of the base and extend into the pipe pile interface ends, open from inside to outside, tightly adhere to the inner wall of the latter to enhance the splicing continuity.

[0012] Further, the relaxation mechanism comprises a support shaft rotatably installed in the base, a driving assembly for driving the support shaft to rotate is installed in the base, the support shaft extends to the pipe pile interface end at both ends and is connected with a screw rod structure, a sleeve is threadedly connected to the screw rod structure, a cylinder frame is connected to the outside of the base, a limiting mechanism for preventing the sleeve from rotating is connected in the cylinder frame, three groups of inclined guide rods are rotatably connected to the outer edge of the sleeve, ball-shaped abutting blocks are installed at the end of the guide rods, and a support rod is rotatably connected between the top end of the cylinder frame and the guide rods.

[0013] Further, the driving assembly comprises a transmission shaft rotatably installed in the base, six-groove is connected to the outside of the base at both ends of the transmission shaft, a worm gear is installed on the transmission shaft, and a worm structure matched with the worm gear is connected to the support shaft.

[0014] Further, the limiting mechanism comprises a plurality of slide rails uniformly arranged on the side wall of the cylinder frame, and a plurality of slide rods are connected to the sleeve and slidably connected with the cylinder frame through the end penetrating the slide rails.

[0015] Further, a plurality of positioning grooves are arranged in the pipe pile interface end, and the ball-shaped abutting blocks are embedded in the positioning grooves to enhance the fastening effect between the base and the pipe pile interface end.

[0016] Three, beneficial effects

[0017] Compared with the prior art, the connecting piece does not abandon the flange connection mode, and on this basis, the contact degree after the connection of the two pipe piles is expanded, and the mutual supporting effect is generally enhanced, so that the sufficient bearing effect is achieved after external force, the flange structure is protected from being damaged, the stability of the pipe pile connection is ensured, and therefore a base with a relaxation mechanism on both sides is added between the two pipe piles, three ball-shaped abutting blocks are tightly attached to the positioning grooves in the pipe pile port inner wall, and the connection part originally relying on the flange and bolt contact is further expanded to the inside of the pipe pile. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the appearance structure schematic diagram of the connecting structure of the prestressed concrete pipe pile after assembly Figure 1 .

[0019] Figure 2 is the appearance structure schematic diagram of the connecting structure of the prestressed concrete pipe pile after assembly Figure 2 .

[0020] Figure 3 is the appearance structure schematic diagram of the connecting piece of the base and the like of the connecting structure of the prestressed concrete pipe pile.

[0021] Figure 4 is the internal structure diagram of the connecting structure base of the prestressed concrete pipe pile Figure 1 .

[0022] Figure 2 is the internal structure diagram of the connecting structure base of the prestressed concrete pipe pile Figure 6 .

[0023] Figure 2 is Figure 7 partial structure diagram.

[0024] Figure 4 is the structure diagram of A part in Figures 1-2

[0025] As shown in the figure: 1, base, 2, flange, 3, transmission shaft, 4, six slot, 5, worm, 6, support shaft, 7, worm structure, 8, screw structure, 9, cylinder frame, 10, screw, 11, slide bar, 12, guide rod, 13, support rod, 14, spherical block, 15, slide rail, 16, pipe pile interface end, 17, positioning groove. DETAILED DESCRIPTION

[0026] The utility model makes further detailed description in combination with drawings.

[0027] To solve the above technical problem, the utility model provides a technical scheme for a connecting structure of prestressed concrete pipe pile, in combination with Figure 2 , including pipe pile interface end 16 that installs together, still including base 1 that installs between pipe pile interface end 16, the both sides of base 1 and pipe pile interface end 16 are connected with flange 2, pipe pile interface end 16 and base 1 are installed together through bolt screw cap fixed assembly;

[0028] Between the end of the mutual connection of concrete pipe pile, increase a base 1, base 1 still installs two pipe piles together with flange 2, base 1 is directly divided into two parts, the box-shaped part in the middle is similar to the cross section of pipe pile, and the height is as low as possible, the rod group part in both sides is outwardly clamped to pipe pile by the end of three groups of evenly distributed guide rods 12, so that the whole has a connecting block between two pipe piles, which is in contact with the pipe pile in a wide range, thereby enhancing the stability of the two pipe piles after splicing;

[0029] In combination with Figure 4 , the both sides of base 1 are connected with relaxation mechanism that is opened outward from inside to outside by extending into pipe pile interface end 16, and is tightly attached to the inner wall of the latter to enhance the splicing continuity, in combination with Figure 7 and Figures 2-6 ​The relaxation mechanism comprises a support shaft 6 rotatably installed in the base 1, a driving assembly is installed in the base 1 and drives the support shaft 6 to rotate, the driving assembly comprises a transmission shaft 3 rotatably installed in the base 1, the transmission shaft 3 extends to the outside of the base 1 at both ends and is connected with a six-groove 4, a worm gear 5 is installed on the transmission shaft 3, and a worm structure 7 matched with the worm gear 5 is connected on the support shaft 6;

[0030] The six-groove 4 is inserted into the six-groove 4 on one side of the base 1, the transmission shaft 3 is slightly rotated, the support shaft 6 is rotated under the transmission effect of the mutual cooperation of the worm gear 5 and the worm structure 7.

[0031] The drawings are combined Figures 1-2 Both ends of the support shaft 6 extend into the pipe pile interface end 16 and are connected with a screw structure 8, a screw sleeve 10 is threadedly connected on the screw structure 8, a cylinder frame 9 is connected on the outside of the base 1, a limiting mechanism for preventing the screw sleeve 10 from rotating is connected in the cylinder frame 9, the limiting mechanism comprises a plurality of slide rails 15 uniformly arranged on the side wall of the cylinder frame 9, a plurality of slide rods 11 are connected on the screw sleeve 10 and slidably connected with the cylinder frame 9 through the end penetrating the slide rails 15, three groups of inclined guide rods 12 are rotatably connected on the edge of the screw sleeve 10, ball-shaped abutting blocks 14 are installed at the ends of the guide rods 12, and a support rod 13 is rotatably connected between the top end of the cylinder frame 9 and the guide rod 12.

[0032] The drawings are combined ​ A plurality of positioning grooves 17 are arranged in the pipe pile interface end 16, and the ball-shaped abutting blocks 14 are embedded in the positioning grooves 17 to enhance the fastening effect between the base 1 and the pipe pile interface end 16.

[0033] The threaded structures at both ends of the support shaft 6 extend in opposite directions, the screw sleeve 10 is threadedly connected on the support shaft 6, and the screw sleeve 10 can only move in the axial direction of the support shaft 6 due to the limiting condition, the moving direction is determined according to the rotating direction of the support shaft 6, the triangular structure composed of the cylinder sleeve, the guide rod 12 and the support rod 13 changes, the end of the guide rod 12 moves in a certain arc path in the pipe pile interface end 16, the ball-shaped abutting blocks at the ends of the guide rods 12 are embedded in the positioning grooves 17 on the inner wall of the pipe pile interface end 16, tightly abut against the inner wall of the pipe pile under the rotation of the screw, and the friction and blocking effect between the three ball-shaped abutting blocks 14 and the pipe pile is generated. At this time, from the macroscopic point of view, it is found that the connecting piece composed of the base 1, the cylinder frame 9 and the guide rod 12 becomes longer, the contact and bearing range between the two pipe piles becomes larger, and the difficulty of moving the pipe pile on one side on the other pipe pile is enhanced, and the assembly effect between them is more stable.

[0034] The utility model discloses in the specific implementation, adopt this concrete pipe pile auxiliary connecting piece, will it first insert to the pipe pile interface end 16 that has fixed, in order to facilitate the subsequent spherical resistance block 14 smoothly embed into pipe pile positioning groove 17, at this time can pass through observation, manual adjustment lets guide rod 12 and positioning groove 17 are in coplanar state, then again put another pipe pile on base 1, also want to pay attention to the position of positioning groove 17, after arranging respective place of putting more or less, take out a size suitable six angle from tool box, hold six angle insertion base 1 arbitrary one side six angle groove 4, then rotate, at this time in the internal pipe pile that can not see, with the rotation of screw rod part, make guide rod 12 occur to tilt outward, and finally lead to its end spherical resistance block embed into positioning groove 17, and tightly pipe pile inner wall outward and top, although the internal structure change of connecting place can not be seen, but can reach the actual situation that can not rotate after stop through transmission shaft 3, the thread structure in the relaxation structure can effectively lock this state, finally adopt bolt and nut, and the flange plate 2 on base 1 and two pipe pile interface end 16, two two fixed mounting can be up.

[0035] The above describes the utility model and its implementation mode, and this kind of description has no limit, and the embodiment shown in the drawing is only one of the utility model, and the actual structure is not limited to this. In general, if the ordinary skilled in the art is inspired, without departing from the utility model creation tenet, does not design the structure mode and example similar to this technical scheme with the creativeness, all should belong to the protection scope of the utility model.

Claims

1. A connecting structure of a prestressed concrete pipe pile, comprising pipe pile interface ends (16) which are installed together with each other, characterized in that, Also include: The base (1) is installed between the pipe pile interface end (16), both sides of the base (1), and the pipe pile interface end (16) are connected with flange (2), and the pipe pile interface end (16) and the base (1) are installed together by bolt and nut fixing assembly; The base (1) is connected with the relaxation mechanism on both sides, which is opened outward by extending into the pipe pile interface end (16) and tightly adheres to the inner wall of the latter to enhance the splicing continuity.

2. The connecting structure of the prestressed concrete pipe pile according to claim 1, characterized in that: The relaxation mechanism includes a support shaft (6) rotatably installed in the base (1), a driving assembly is installed in the base (1) to drive the support shaft (6) to rotate, the support shaft (6) extends to the pipe pile interface end (16) at both ends and is connected with a screw rod structure (8), the screw rod structure (8) is connected with a screw sleeve (10) in screw thread, the base (1) is connected with a cylinder frame (9) outside the screw rod structure (8), the cylinder frame (9) is connected with a limiting mechanism for preventing the screw sleeve (10) from rotating, the screw sleeve (10) is connected with three groups of inclined guide rods (12) at the edge, the guide rods (12) are connected with ball-shaped abutting blocks (14) at the end, the cylinder frame (9) is rotatably connected with a support rod (13) between the top end and the guide rod (12).

3. The connecting structure of the prestressed concrete pipe pile according to claim 2, characterized in that: The driving assembly includes a transmission shaft (3) rotatably installed in the base (1), the transmission shaft (3) extends to the outside of the base (1) at both ends and is connected with a six-rib groove (4), the transmission shaft (3) is connected with a worm gear (5), and the support shaft (6) is connected with a worm structure (7) matched with the worm gear (5).

4. The connecting structure of the prestressed concrete pipe pile according to claim 2, characterized in that: The limiting mechanism includes a plurality of slide rails (15) uniformly arranged on the side wall of the cylinder frame (9), and the screw sleeve (10) is connected with a plurality of slide rods (11) which are connected with the cylinder frame (9) by penetrating the slide rails (15) at the end.

5. The connecting structure of the prestressed concrete pipe pile according to claim 2, characterized in that: The pipe pile interface end (16) is provided with a plurality of positioning grooves (17), and the ball-shaped abutting block (14) is embedded in the positioning groove (17) to enhance the fastening effect between the base (1) and the pipe pile interface end (16).

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