Lengthened connecting structure for steel pipe piles

Abstract

The utility model relates to the technical field of steel pipe pile lengthening connecting structures, and discloses a steel pipe pile lengthening connecting structure which comprises a foundation steel pipe pile and a lengthening steel pipe pile, a fixing seat and a connecting seat are detachably connected between the foundation steel pipe pile and the lengthening steel pipe pile, and the fixing seat and the connecting seat are fixed through bolts and nuts. According to the steel pipe pile lengthening connecting structure, the fixing base and the connecting base are fixed to the upper end of the foundation steel pipe pile, so that the lengthened steel pipe pile can slide into the position between the fixing base and the connecting base after being lifted up, and then bolts and nuts on the fixing base and the connecting base are screwed tightly; or the fixing base and the connecting base are fixedly connected to the lower end of the lengthened steel pipe pile, operation is easy, when the lengthened steel pipe pile is lifted to move downwards, the inner walls of the fixing base and the connecting base can slide along the surface of the foundation steel pipe pile, and therefore the foundation steel pipe pile and the lengthened steel pipe pile are connected, and operation is easy, rapid and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe pile lengthened connection structures, in particular to a steel pipe pile lengthened connection structure. Background Art

[0002] Steel pipe piles, commonly used foundation components in civil engineering and construction, offer advantages such as high strength, ease of construction, and wide adaptability. However, in actual projects, due to changes in geological conditions, design requirements, or construction conditions, steel pipe piles may need to be lengthened to meet specific load-bearing capacity and stability requirements.

[0003] The patent with the current announcement number CN211080215U discloses a steel pipe pile extension connection structure, which includes a foundation steel pipe pile and an extension steel pipe pile. The foundation steel pipe pile is vertically buried, and the extension steel pipe pile is vertically connected to the upper end of the foundation steel pipe pile. A plurality of vertically arranged positioning rods are welded around the side wall of the foundation steel pipe pile. A plurality of positioning sleeves corresponding to the plurality of positioning rods are welded and fixed around the side wall of the extension steel pipe pile. The positioning sleeves are sleeved on the positioning rods and welded and fixed at the connection between the foundation steel pipe pile and the extension steel pipe pile. The utility model has a simple structure and is easy to operate. When the extension steel pipe pile is connected to the foundation steel pipe pile, the positioning rods and the positioning sleeves cooperate to ensure accurate positioning between the foundation steel pipe pile and the extension steel pipe pile, thereby reducing the impact of offset on the weakening of structural stability.

[0004] However, the above technology still has the following problems:

[0005] The steel pipe pile extension connection structure in the above technology further requires welding after the foundation steel pipe pile and the extension steel pipe pile are aligned and connected. The operation steps are relatively complicated and require high welding skills of the operator. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a steel pipe pile lengthening connection structure, which can quickly lengthen the foundation steel pipe piles.

[0007] The utility model provides the following technical solution: a steel pipe pile extension connection structure, comprising a basic steel pipe pile and an extended steel pipe pile, wherein the basic steel pipe pile and the extended steel pipe pile are detachably connected with a fixing seat and a connecting seat, and the fixing seat and the connecting seat are fixed by bolts and nuts.

[0008] Furthermore, the fixing seat includes an arc-shaped plate, both ends of the arc-shaped plate are fixedly connected to the fixing plate, a plurality of circular holes are opened on the fixing plate, and the middle part of the arc-shaped plate is fixedly connected to the support plate, which is provided with a plurality of water leakage holes.

[0009] Furthermore, the arc length of the cross section of the arc-shaped plate is less than half the length of the circular arc of the cross section of the foundation steel pipe pile.

[0010] Furthermore, the lower end of the arc-shaped plate is fixedly connected to an inclined annular plate.

[0011] Furthermore, the annular plate is provided with a plurality of through holes.

[0012] Furthermore, the structure of the connecting seat is exactly the same as that of the fixing seat.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This steel pipe pile extension connection structure fixes the fixing seat and the connecting seat at the upper end of the foundation steel pipe pile, so that after the extended steel pipe pile is hoisted, it can slide between the fixing seat and the connecting seat, and then the bolts and nuts on the fixing seat and the connecting seat are tightened, or the fixing seat and the connecting seat are fixedly connected to the lower end of the extended steel pipe pile. The operation is simple, so that when the extended steel pipe pile is hoisted and moved downward, the inner walls of the fixing seat and the connecting seat can slide along the surface of the foundation steel pipe pile, thereby connecting the foundation steel pipe pile and the extended steel pipe pile. The operation is simple, quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of another installation method of the utility model;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the fixing seat of the utility model.

[0018] In the figure: 1. Foundation steel pipe pile; 2. Extended steel pipe pile; 3. Fixed seat; 301. Arc plate; 302. Fixed plate; 303. Round hole; 304. Support plate; 305. Leakage hole; 4. Connecting seat; 5. Ring plate; 6. Through hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] See also Figures 1 to 3 A steel pipe pile extension connection structure includes a basic steel pipe pile 1 and an extended steel pipe pile 2. The basic steel pipe pile 1 and the extended steel pipe pile 2 are detachably connected with a fixing seat 3 and a connecting seat 4, and the fixing seat 3 and the connecting seat 4 are fixed by bolts and nuts.

[0021] The steel pipe pile lengthening connection structure in the present invention is similar to the existing steel pipe pile lengthening connection structure structure, such as the patent with announcement number CN211080215U which discloses a steel pipe pile lengthening connection structure. The main improvement of the present invention is that: by fixing the fixing seat 3 and the connecting seat 4 to the upper end of the foundation steel pipe pile 1, the extended steel pipe pile 2 can be slid into the middle of the fixing seat 3 and the connecting seat 4 after being lifted, and then the bolts and nuts on the fixing seat 3 and the connecting seat 4 are tightened to connect and fix the extended steel pipe pile 2 to the foundation steel pipe pile 1, or the fixing seat 3 and the connecting seat 4 are fixed to the lower end of the extended steel pipe pile 2, so that when the extended steel pipe pile 2 is lifted and moved downward, the inner walls of the fixing seat 3 and the connecting seat 4 can slide along the surface of the foundation steel pipe pile 1, thereby connecting the foundation steel pipe pile 1 to the extended steel pipe pile 2. The operation is simple, quick and convenient. Figures 1 to 3 As shown, the steel pipe pile lengthening connection structure in the present invention, when in use, first place the support plate 304 on the fixing seat 3 on the upper end of the foundation steel pipe pile 1, and then make the inner wall of the arc plate 301 and the surface of the foundation steel pipe pile 1 close to each other, and then place the connecting seat 4 on the upper end of the foundation steel pipe pile 1 according to the same operation, and use bolts and nuts to preliminarily fix the fixing seat 3 and the connecting seat 4, only tighten the bolts and nuts located below the upper surface of the foundation steel pipe pile 1, and then lift the lengthened steel pipe pile 2, so that the lengthened steel pipe pile 2 slides between the fixing seat 3 and the connecting seat 4, and the lower end of the lengthened steel pipe pile 2 and the support plate 3 are close to each other. 04, the upper surface of the lengthened steel pipe pile 2 can be tightened with the bolts and nuts on both sides of the lengthened steel pipe pile 2, so as to connect the lengthened steel pipe pile 2 with the foundation steel pipe pile 1, and because the lengthened steel pipe pile 2 squeezes the fixing seat 3 and the support plate 304 on the connecting seat 4, when the lengthened steel pipe pile 2 is subjected to force and wants to tilt, the arc plate 301 can support the lengthened steel pipe pile 2 to keep it stable. Similarly, according to the same operation, the fixing seat 3 and the connecting seat 4 are fixed to the lower end of the lengthened steel pipe pile 2, and the connection and fixation of the lengthened steel pipe pile 2 and the foundation steel pipe pile 1 can also be done, which will not be described in detail here.

[0022] It should be noted that when the fixing seat 3 and the connecting seat 4 are fixed to the upper end of the foundation steel pipe pile 1, the bolts and nuts at the upper end of the foundation steel pipe pile 1 should not be tightened first to prevent the curved plate 301 at the upper end of the foundation steel pipe pile 1 from deforming inward, thereby affecting the extended steel pipe pile 2 from sliding between the fixing seat 3 and the connecting seat 4. When the fixing seat 3 and the connecting seat 4 are fixed to the lower end of the extended steel pipe pile 2, the bolts and nuts at the lower end of the extended steel pipe pile 2 should not be tightened first to prevent the curved plate 301 at the lower end of the extended steel pipe pile 2 from deforming inward, thereby affecting the foundation steel pipe pile 1 from sliding between the fixing seat 3 and the connecting seat 4. After the extended steel pipe pile 2 is connected to the foundation steel pipe pile 1, tighten the loose bolts and nuts.

[0023] like Figure 3 As shown, the fixing seat 3 includes an arc-shaped plate 301, both ends of the arc-shaped plate 301 are fixedly connected to the fixing plate 302, a plurality of circular holes 303 are opened on the fixing plate 302, and a middle part of the arc-shaped plate 301 is fixedly connected to the supporting plate 304, and a plurality of water leakage holes 305 are opened on the supporting plate 304.

[0024] Specifically, the fixing seat 3 is placed at the upper end of the foundation steel pipe pile 1, and the lengthened steel pipe pile 2 will be against the support plate 304 after being aligned with the foundation steel pipe pile 1. Since the support plate 304 and the curved plate 301 are perpendicular to each other, when the lengthened steel pipe pile 2 is subjected to force and wants to tilt, the curved plate 301 can support the lengthened steel pipe pile 2 to keep it stable, and the leakage hole 305 can prevent rainwater from accumulating in the lengthened steel pipe pile 2.

[0025] like Figure 3 As shown, the arc length of the cross section of the arc-shaped plate 301 is less than half of the arc length of the cross section of the foundation steel pipe pile 1 .

[0026] Specifically, the arc length of the cross section of the arc plate 301 is less than half the length of the circular arc of the cross section of the foundation steel pipe pile 1. This is so that when the fixing seat 3 and the connecting seat 4 are connected by bolts and nuts, the arc plate 301 can be deformed inward appropriately under the action of the bolts and nuts, thereby giving the extended steel pipe pile 2 a greater extrusion pressure, so that the extended steel pipe pile 2 will not slide easily.

[0027] like Figure 1 、 Figure 2 or Figure 3 As shown, the lower end of the arc-shaped plate 301 is fixedly connected to an inclined annular plate 5 .

[0028] Specifically, when the fixing seat 3 and the connecting seat 4 are fixed to the upper end of the foundation steel pipe pile 1, when the extended steel pipe pile 2 is lifted and moved toward the foundation steel pipe pile 1, the extended steel pipe pile 2 can move downward along the surface of the annular plate 5 after contacting the inclined annular plate 5, and slide into the fixing seat 3 and the connecting seat 4, so that the extended steel pipe pile 2 can be quickly aligned with the foundation steel pipe pile 1. When the fixing seat 3 and the connecting seat 4 are fixed to the lower end of the extended steel pipe pile 2, the annular plate 5 also has the same effect as described above.

[0029] like Figure 1 、 Figure 2 or Figure 3 As shown, the annular plate 5 is provided with a plurality of through holes 6 .

[0030] Specifically, the through holes 6 reduce the weight of the annular plate 5 while ensuring the strength of the annular plate 5 , and prevent rainwater from accumulating on the annular plate 5 .

[0031] like Figure 1or Figure 2 As shown, the structure of the connecting seat 4 is exactly the same as that of the fixing seat 3.

[0032] Specifically, the fixing seat 3 and the connecting seat 4 are set on both sides of the foundation steel pipe pile 1 and the lengthened steel pipe pile 2, and the fixing seat 3 and the connecting seat 4 are preliminarily fixed using bolts and nuts, so that the fixing seat 3 and the connecting seat 4 can simultaneously connect and fix the lengthened steel pipe pile 2 and the foundation steel pipe pile 1.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A steel pipe pile extension connection structure, comprising a basic steel pipe pile (1) and an extension steel pipe pile (2), characterized in that: A fixing seat (3) and a connecting seat (4) are detachably connected between the foundation steel pipe pile (1) and the extended steel pipe pile (2), and the fixing seat (3) and the connecting seat (4) are fixed by bolts and nuts.

2. The steel pipe pile extension connection structure according to claim 1, characterized in that: The fixing seat (3) comprises an arc-shaped plate (301), both ends of the arc-shaped plate (301) are fixedly connected to a fixing plate (302), a plurality of circular holes (303) are provided on the fixing plate (302), a middle portion of the arc-shaped plate (301) is fixedly connected to a supporting plate (304), and a plurality of water leakage holes (305) are provided on the supporting plate (304).

3. The steel pipe pile extension connection structure according to claim 2, characterized in that: The arc length of the cross section of the arc-shaped plate (301) is less than half the length of the circular arc of the cross section of the foundation steel pipe pile (1).

4. A steel pipe pile extension connection structure according to claim 2 or 3, characterized in that: The lower end of the arc-shaped plate (301) is fixedly connected to an inclined annular plate (5).

5. The steel pipe pile extension connection structure according to claim 4, characterized in that: The annular plate (5) is provided with a plurality of through holes (6).

6. A steel pipe pile extension connection structure according to claim 1, 2, 3 or 5, characterized in that: The structure of the connecting seat (4) is completely identical to that of the fixing seat (3).

7. The steel pipe pile extension connection structure according to claim 4, characterized in that: The structure of the connecting seat (4) is completely identical to that of the fixing seat (3).

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