Novel screw locking type connected prefabricated special-shaped pipe pile

Abstract

The utility model relates to the technical field of constructional engineering materials, and discloses a novel screw lock type connection prefabricated special-shaped pipe pile which comprises a first prefabricated square pile, a pile head and a second prefabricated square pile, the upper surface of the first prefabricated square pile is fixedly connected with a first connecting block, and the outer surface of the first connecting block is fixedly connected with a positioning frame. A connecting mechanism is arranged on the first connecting block, and the connecting mechanism comprises a buffer block, a second connecting block, a sealing plate, a threaded block, a fixing groove, a positioning groove, an inner sliding groove, a limiting block, a spring and a sliding groove. Therefore, the resistance of the first connecting block in the process that the first prefabricated square pile and the second prefabricated square pile are wedged into the ground can be reduced, the smoothness in the process that the first prefabricated square pile and the second prefabricated square pile are wedged into the ground is further ensured, the construction efficiency during use of the prefabricated special-shaped pipe pile is further ensured, and the practicability of the prefabricated special-shaped pipe pile is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering materials, and particularly relates to a novel precast special-shaped pipe pile with a screw-lock connection. Background Art

[0002] In building engineering, when constructing a pile foundation, precast concrete square piles are commonly used pile foundation structures. However, for deeper pile foundations, multiple groups of precast concrete square piles need to be combined and connected. Generally, the connection methods of precast concrete square piles are welding or screw-lock connection. For the screw-lock connection of precast concrete square piles, the upper pile head uses a screw rod and a plug pin, and the lower pile head uses a pre-embedded lock piece. The plug pin of the upper pile head is inserted into the lock piece of the lower pile head for combination.

[0003] Existing publicly disclosed patent: CN202222986348.5, a screw-lock connection structure for precast concrete square piles, realizes the locking of the connection pin through the lock piece in the threaded cylinder. However, during the process of inserting the connection pin into the threaded cylinder, since the connection between the connection pin and the inner wall of the threaded cylinder is relatively tight.

[0004] However, in this comparative example, the connection part between the first precast square pile and the second precast square pile is wider than other positions of the first precast square pile and the second precast square pile. This causes more resistance when the first precast square pile and the second precast square pile are wedged into the ground, thereby reducing the construction efficiency during the use of the precast special-shaped pipe pile and further reducing the practicability of the precast special-shaped pipe pile. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a novel precast special-shaped pipe pile with a screw-lock connection, which solves the problem that in this comparative example, the connection part between the first precast square pile and the second precast square pile is wider than other positions of the first precast square pile and the second precast square pile. This causes more resistance when the first precast square pile and the second precast square pile are wedged into the ground, thereby reducing the construction efficiency during the use of the precast special-shaped pipe pile and further reducing the practicability of the precast special-shaped pipe pile.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the utility model provides the following technical solution: A novel precast special-shaped pipe pile with a screw-lock connection, including a first precast square pile, a pile head, and a second precast square pile. The upper surface of the first precast square pile is fixedly connected with a first connection block;

[0009] Among them, the outer surface of the first connection block is fixedly connected with a positioning frame;

[0010] Among them, a connecting mechanism is arranged on the first connecting block, and the connecting mechanism includes a buffer block, a second connecting block, a sealing plate, a threaded block, a fixing groove, a positioning groove, an inner sliding groove, a limiting block, a spring and a sliding groove.

[0011] Preferably, the buffer block is fixedly sleeved on the outer surface of the first prefabricated square pile;

[0012] Wherein, the upper surface of the buffer block is fixedly connected to the lower surface of the first connecting block;

[0013] Wherein, the buffer block is in the shape of a quadrangular pyramid;

[0014] Wherein, a plurality of fixing grooves are arranged on the upper surface of the first connecting block.

[0015] Preferably, a plurality of the inner slide grooves are provided in the first connecting block;

[0016] Wherein, the inner slide groove is communicated with the interior of the fixed groove;

[0017] Wherein, the second connecting block is fixedly connected to the lower surface of the second prefabricated square pile.

[0018] Preferably, the sealing plate is fixedly sleeved on the outer surface of the second connecting block;

[0019] Wherein, the second connecting block is slidably connected to the positioning frame;

[0020] Wherein, a plurality of threaded blocks are fixedly connected to the lower surface of the second connecting block;

[0021] Wherein, the threaded block is slidably connected with the fixing groove.

[0022] Preferably, the lower surface of the threaded block is spherical;

[0023] Wherein, a plurality of positioning grooves are provided on the outer surfaces of a plurality of threaded blocks;

[0024] Wherein, a plurality of limit blocks are slidably connected in a plurality of inner slide grooves;

[0025] Wherein, the two springs are both fixedly connected to the inner wall of the inner slide groove.

[0026] Preferably, one end of the two springs away from the inner wall of the inner slide groove is slidably connected to the limit block;

[0027] Wherein, the sliding groove is provided on the upper surface of the limit block, and the sliding groove extends out of the lower surface of the limit block;

[0028] The threaded block is slidably connected to the sliding groove, and the limit block is slidably connected to the positioning groove;

[0029] Wherein, the upper side of the sliding groove is provided with a circular arc chamfer.

[0030] (III) Beneficial effects

[0031] Compared with the prior art, the utility model provides a precast special-shaped pipe pile with a novel screw-lock connection, which has the following beneficial effects:

[0032] 1. For the precast special-shaped pipe pile with the novel screw-lock connection, the buffer block is in the shape of a quadrangular pyramid frustum, that is, the lower surface of the buffer block is an inclined surface, which can reduce the resistance of the first connecting block during the process of the first precast square pile and the second precast square pile being wedged into the ground, thereby ensuring the smoothness of the first precast square pile and the second precast square pile during the process of being wedged into the ground, further ensuring the construction efficiency when the precast special-shaped pipe pile is used, and further increasing the practicability of the precast special-shaped pipe pile.

[0033] 2. For the precast special-shaped pipe pile with the novel screw-lock connection, it drives the sealing plate to fit with the positioning frame, thereby increasing the contact area between the first precast square pile and the second precast square pile, improving the sealing effect between the first precast square pile and the second precast square pile, further avoiding the moisture corrosion of the threaded block, spring, etc., and further increasing the connection stability and the effective service life of the connection between the first precast square pile and the second precast square pile.

[0034] 3. For the precast special-shaped pipe pile with the novel screw-lock connection, the lower surface of the threaded block is spherical, which can reduce the friction between the threaded block and the sliding groove, reduce wear, make it more labor-saving when the threaded block pushes the limiting block, thereby increasing the smoothness of the connection between the first precast square pile and the second precast square pile, further increasing the connection stability between the first precast square pile and the second precast square pile, and also increasing the practicability of the precast special-shaped pipe pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic diagram of the overall structure of a precast special-shaped pipe pile with a novel screw-lock connection according to the utility model;

[0036] Figure 2 is a schematic diagram of the structure of the positioning frame according to the utility model;

[0037] Figure 3 is a transverse partial cross-sectional view of the first connecting block according to the utility model;

[0038] Figure 4 is a vertical partial cross-section of the first connecting block according to the utility model;

[0039] Figure 5 is Figure 1 an enlarged view of part A of

[0040] In the figure: 1. First precast square pile; 2. Pile head; 3. Second precast square pile; 4. Buffer block; 5. First connecting block; 6. Positioning frame; 7. Second connecting block; 8. Sealing plate; 9. Threaded block; 10. Fixed groove; 11. Positioning groove; 12. Inner sliding groove; 13. Limiting block; 14. Spring; 15. Sliding groove. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0042] Please refer to Figures 1-5 , the present invention provides a new technical solution: a precast special-shaped pipe pile with a new type of screw-lock connection, including a first precast square pile 1, a pile head 2 and a second precast square pile 3. A first connection block 5 is fixedly connected to the upper surface of the first precast square pile 1;

[0043] Wherein, a positioning frame 6 is fixedly connected to the outer surface of the first connection block 5;

[0044] Wherein, a connection mechanism is arranged on the first connection block 5, and the connection mechanism includes a buffer block 4, a second connection block 7, a sealing plate 8, a threaded block 9, a fixing groove 10, a positioning groove 11, an inner sliding groove 12, a limiting block 13, a spring 14 and a sliding groove 15.

[0045] Further, the buffer block 4 is fixedly sleeved on the outer surface of the first precast square pile 1;

[0046] Wherein, the upper surface of the buffer block 4 is fixedly connected to the lower surface of the first connection block 5;

[0047] Wherein, the buffer block 4 is in the shape of a quadrangular pyramid frustum;

[0048] Wherein, a plurality of fixing grooves 10 are opened on the upper surface of the first connection block 5.

[0049] Further, a plurality of inner sliding grooves 12 are opened in the first connection block 5;

[0050] Wherein, the inner sliding groove 12 is internally communicated with the fixing groove 10;

[0051] Wherein, the second connection block 7 is fixedly connected to the lower surface of the second precast square pile 3.

[0052] Further, the sealing plate 8 is fixedly sleeved on the outer surface of the second connection block 7;

[0053] Wherein, the second connection block 7 is slidably connected to the positioning frame 6;

[0054] Wherein, a plurality of threaded blocks 9 are fixedly connected to the lower surface of the second connection block 7;

[0055] Wherein, the threaded block 9 is slidably connected to the fixing groove 10.

[0056] Further, the lower surface of the threaded block 9 is spherical in shape;

[0057] Among them, a plurality of positioning grooves 11 are formed on the outer surfaces of the plurality of threaded blocks 9;

[0058] Among them, a plurality of limiting blocks 13 are slidably connected in a plurality of inner sliding grooves 12;

[0059] Among them, both of the two springs 14 are fixedly connected to the inner wall of the inner sliding groove 12.

[0060] Further, one end of both of the two springs 14 away from the inner wall of the inner sliding groove 12 is slidably connected to the limiting block 13;

[0061] Among them, a sliding groove 15 is formed on the upper surface of the limiting block 13, and the sliding groove 15 extends out of the lower surface of the limiting block 13;

[0062] Among them, the threaded block 9 is slidably connected to the sliding groove 15, and the limiting block 13 is slidably connected to the positioning groove 11;

[0063] Among them, an arc chamfer is provided on the upper side of the sliding groove 15.

[0064] Further, during use, the threaded block 9 is slid downward into the fixing groove 10. During the downward sliding process of the threaded block 9, the second connecting block 7 is driven to slide downward into the positioning frame 6. During the downward movement of the threaded block 9, its lower surface contacts the sliding groove 15, and during the downward movement of the threaded block 9, a thrust is applied to the limiting block 13 through the sliding groove 15, pushing the limiting block 13 to move. During the movement of the limiting block 13, an extrusion force is applied to the spring 14, causing the spring 14 to be extruded and deformed. And as the threaded block 9 moves downward, the sliding groove 15 gradually becomes flush with the positioning groove 11. At the same time, under the pushing of the released elastic force of the spring 14, the limiting block 13 is pushed to slide into the positioning groove 11. Then, at this time, the threaded block 9 is fixed in the fixing groove 10, and further, the first precast square pile 1 and the second precast square pile 3 are connected and fixed;

[0065] As described above, during the downward movement of the threaded block 9, the sealing plate 8 is driven to fit with the positioning frame 6, thereby increasing the contact area between the first precast square pile 1 and the second precast square pile 3, improving the sealing effect between the first precast square pile 1 and the second precast square pile 3, further preventing the threaded block 9, the spring 14, etc. from being affected by moisture and corrosion, and further increasing the connection stability and the effective service life of the connection between the first precast square pile 1 and the second precast square pile 3;

[0066] As described above, the buffer block 4 is in the shape of a quadrangular pyramid frustum, that is, the lower surface of the buffer block 4 is an inclined surface, which can reduce the resistance of the first connecting block 5 during the process of the first precast square pile 1 and the second precast square pile 3 being wedged into the ground, thereby ensuring the smoothness of the first precast square pile 1 and the second precast square pile 3 during the process of being wedged into the ground, further ensuring the construction efficiency when using the precast special-shaped pipe pile, and further increasing the practicality of the precast special-shaped pipe pile.

[0067] Furthermore, the lower surface of the threaded block 9 being spherical can reduce the friction between the threaded block 9 and the sliding groove 15, reduce wear, making it more labor-saving when the threaded block 9 pushes the limiting block 13, thereby increasing the smoothness of the connection between the first precast square pile 1 and the second precast square pile 3, further increasing the connection stability between the first precast square pile 1 and the second precast square pile 3, and also increasing the practicality of the precast special-shaped pipe pile.

[0068] Working principle: When the device is in use, during use, the threaded block 9 is slid downward into the fixed groove 10. During the downward sliding process of the threaded block 9, the second connecting block 7 is driven to slide downward into the positioning frame 6. During the downward movement of the threaded block 9, its lower surface contacts the sliding groove 15, and during the downward movement of the threaded block 9, a thrust is given to the limiting block 13 through the sliding groove 15 to push the limiting block 13 to move. During the movement of the limiting block 13, an extrusion force is applied to the spring 14, causing the spring 14 to undergo extrusion deformation. And as the threaded block 9 moves downward, the sliding groove 15 gradually becomes at the same level as the positioning groove 11. At the same time, under the pushing of the released elastic force of the spring 14, the limiting block 13 is pushed to slide into the positioning groove 11, thereby fixing the threaded block 9 in the fixed groove 10 at this time, and then connecting and fixing the first precast square pile 1 and the second precast square pile 3;

[0069] As described above, during the downward movement of the threaded block 9, the sealing plate 8 is driven to fit with the positioning frame 6, thereby increasing the contact area between the first precast square pile 1 and the second precast square pile 3, improving the sealing effect between the first precast square pile 1 and the second precast square pile 3, thereby avoiding moisture corrosion of the threaded block 9, the spring 14, etc., and further increasing the connection stability and the effective service life of the connection between the first precast square pile 1 and the second precast square pile 3;

[0070] As described above, the buffer block 4 is in the shape of a quadrangular pyramid frustum, that is, the lower surface of the buffer block 4 is an inclined surface, which can reduce the resistance of the first connecting block 5 during the process of the first precast square pile 1 and the second precast square pile 3 being wedged into the ground, thereby ensuring the smoothness of the first precast square pile 1 and the second precast square pile 3 during the process of being wedged into the ground, further ensuring the construction efficiency when using the precast special-shaped pipe pile, and further increasing the practicality of the precast special-shaped pipe pile.

[0071] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

[0072] In the description of the present utility model, it should be understood that with respect to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0073] In the description of the present utility model, "greater than", "less than", "exceeding", etc. are understood as not including the number itself, and "above", "below", "within", etc. are understood as including the number itself. If there is a description of first and second, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence of the indicated technical features.

[0074] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "set" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A new type of prefabricated special-shaped pipe pile with screw-lock connection, characterized in that: It comprises a first prefabricated square pile (1), a pile head (2) and a second prefabricated square pile (3), wherein the upper surface of the first prefabricated square pile (1) is fixedly connected with a first connecting block (5); Wherein, a positioning frame (6) is fixedly connected to the outer surface of the first connecting block (5); Wherein, a connecting mechanism is arranged on the first connecting block (5), and the connecting mechanism comprises a buffer block (4), a second connecting block (7), a sealing plate (8), a threaded block (9), a fixing groove (10), a positioning groove (11), an inner sliding groove (12), a limiting block (13), a spring (14) and a sliding groove (15).

2. The novel prefabricated special-shaped pipe pile with screw-lock connection according to claim 1 is characterized in that: The buffer block (4) is fixedly sleeved on the outer surface of the first prefabricated square pile (1); Wherein, the upper surface of the buffer block (4) is fixedly connected to the lower surface of the first connecting block (5); Wherein, the buffer block (4) is in the shape of a quadrangular pyramid; Wherein, a plurality of fixing grooves (10) are provided on the upper surface of the first connecting block (5).

3. The novel prefabricated special-shaped pipe pile with screw-lock connection according to claim 2 is characterized in that: A plurality of inner slide grooves (12) are provided in the first connecting block (5); Wherein, the inner slide groove (12) is in communication with the interior of the fixed groove (10); Wherein, the second connection block (7) is fixedly connected to the lower surface of the second prefabricated square pile (3).

4. The novel prefabricated special-shaped pipe pile with screw-lock connection according to claim 3 is characterized in that: The sealing plate (8) is fixedly sleeved on the outer surface of the second connecting block (7); Wherein, the second connection block (7) is slidably connected to the positioning frame (6); Wherein, a plurality of threaded blocks (9) are fixedly connected to the lower surface of the second connecting block (7); The threaded block (9) is slidably connected to the fixing groove (10).

5. The novel prefabricated special-shaped pipe pile with screw-lock connection according to claim 4 is characterized in that: The lower surface of the threaded block (9) is in a spherical shape; Wherein, a plurality of positioning grooves (11) are provided on the outer surfaces of a plurality of threaded blocks (9); Wherein, a plurality of limit blocks (13) are slidably connected in a plurality of inner slide grooves (12); Wherein, the two springs (14) are both fixedly connected to the inner wall of the inner slide groove (12).

6. The novel prefabricated special-shaped pipe pile with screw-lock connection according to claim 5 is characterized in that: One end of the two springs (14) away from the inner wall of the inner slide groove (12) is slidably connected to the limit block (13); The sliding groove (15) is provided on the upper surface of the limiting block (13), and the sliding groove (15) extends out of the lower surface of the limiting block (13); The threaded block (9) is slidably connected to the sliding groove (15), and the limit block (13) is slidably connected to the positioning groove (11); Wherein, the upper side of the sliding groove (15) is provided with a circular arc chamfer.

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