An installation structure for prestressed concrete pipe piles

Abstract

The present invention belongs to the field of concrete pipe piles, and specifically relates to an installation structure of a prestressed concrete pipe pile, including a lower pipe pile, and an upper pipe pile is arranged at the bottom end of the lower pipe pile; an installation mechanism is arranged between the lower pipe pile and the upper pipe pile, and the installation mechanism is used to connect the lower pipe pile and the upper pipe pile; the installation mechanism includes an upper connection seat, a lower connection seat, an automatic connection component, an external fixing component and a positioning component. The upper connection seat is fixedly connected to the bottom end of the lower pipe pile, a lower connection seat is arranged at the bottom end of the upper connection seat, the lower connection seat is fixedly connected to the top end of the lower pipe pile, the automatic connection component is arranged between the upper connection seat and the lower connection seat, and the external fixing component is arranged on the outer sides of the upper connection seat and the lower connection seat; through the structural design of the installation mechanism, the function of stably connecting the lower pipe pile and the upper pipe pile without using any connecting pieces and fixing pieces such as screws and relying on the self-weight of the lower pipe pile is realized.

Description

Technical Field

[0001] The present invention relates to the field of concrete pipe piles, and specifically to an installation structure for prestressed concrete pipe piles. Background Art

[0002] Prestressed concrete pipe piles, also known as precast concrete piles, refer to precast components processed in a precast component factory. After curing and reaching the design strength, they are transported to the construction site, driven into the soil by a pile driver, and then a pile cap beam (slab) foundation is poured on the top of the pile. The concrete grade of the reinforced concrete precast pile should not be lower than 300#. The diameter of the stressed steel bars of the pile should not be less than 12 mm, and generally 4 - 8 main steel bars are configured.

[0003] For the existing installation structure of prestressed concrete pipe piles, reference can be made specifically to the Chinese patent with the publication number CN218479152U, which discloses in detail a concrete pipe pile installation and connection structure, including concrete pipe pile A, a fixing frame, and concrete pipe pile B; on one side of the fixing frame, there is a fixing plate A for placing concrete pipe pile A welded; on one side of the fixing plate A, there is a connecting shaft A screwed to drive the rotation of connecting plate A, and at one end of the fixing plate A away from the connecting shaft A, there is a connecting shaft B screwed to drive the rotation of connecting plate B. Fixing screw holes A for fixing connecting plate A and connecting plate B with fixing screw A are provided on the surfaces of connecting plate A and connecting plate B; through the installation of fixing plate A, fixing plate B, connecting plate A, connecting plate B, connecting plate C, connecting plate D, connecting shaft A, connecting shaft B, connecting shaft C, and connecting shaft D, the utility model solves the problem that when the existing concrete pipe piles are in use, concrete pipe pile A and concrete pipe pile B cannot be respectively fixed inside the fixing frame, making it inconvenient to install and connect concrete pipe pile A and concrete pipe pile B.

[0004] Although the above - mentioned installation structure of prestressed concrete pipe piles can already assemble prestressed concrete pipe piles relatively conveniently, during its use, fixing parts such as screws are still required. When installing fixing parts such as screws, tools such as screwdrivers are also needed, which is time - consuming and laborious during installation. Moreover, the connection stability of the connection part depends on the manual operation of the operator. If there is an operation error and the connection parts are not fully tightened, the overall connection stability will decrease; therefore, an installation structure for prestressed concrete pipe piles is proposed for the above - mentioned problems. Summary of the Invention

[0005] In order to solve the problem that in the assembly process of existing prestressed concrete pipe piles, screws and special connecting pieces are required, and tools such as screwdrivers are also needed for the installation of fixing pieces such as screws. The installation is time-consuming and laborious, and the connection stability of the connection part depends on the manual operation of the operator. If the connecting piece is not completely tightened due to an operation error, the overall connection stability will decrease. The present invention proposes an installation structure for prestressed concrete pipe piles.

[0006] The technical solution adopted by the present invention to solve its technical problems is: an installation structure for a prestressed concrete pipe pile described in the present invention includes a lower pipe pile, and an upper pipe pile is provided at the bottom end of the lower pipe pile; an installation mechanism is provided between the lower pipe pile and the upper pipe pile, and the installation mechanism is used to connect the lower pipe pile and the upper pipe pile;

[0007] The installation mechanism includes an upper connection seat, a lower connection seat, an automatic connection component, an external fixing component and a positioning component. The upper connection seat is fixedly connected to the bottom end of the lower pipe pile, and a lower connection seat is provided at the bottom end of the upper connection seat. The lower connection seat is fixedly connected to the top end of the lower pipe pile. The automatic connection component is arranged between the upper connection seat and the lower connection seat. The external fixing component is arranged outside the upper connection seat and the lower connection seat. The positioning component is arranged inside the lower connection seat. The automatic connection component is used to automatically connect and fix the lower pipe pile and the upper pipe pile. The external fixing component is used to assist in the installation between the lower pipe pile and the upper pipe pile. The positioning component is used to limit the relative rotation between the lower pipe pile and the upper pipe pile.

[0008] Preferably, the automatic connection component includes a connection ring. The connection ring is fixedly connected to the bottom end of the upper connection seat and is inserted into the inside of the first connection groove. The first connection groove is opened at the top end of the lower connection seat. Both the front and rear ends of the connection ring are provided with notches. A driving rack is fixedly connected to the inner wall of the notch. The driving rack meshes with a transmission gear. The transmission gear is rotatably connected inside a transmission cavity. The transmission cavity is opened inside the lower connection seat and is communicated with the first connection groove and a storage cavity. The storage cavity is opened at the top end of the lower connection seat. The transmission gear also meshes with a driven rack. The top end of the driven rack is inserted into the inside of a connection cavity. The connection cavity is opened at the bottom end of the upper connection seat. A movable cavity is opened on one side of the top end of the driven rack. A first spring is arranged inside the movable cavity, and a connection block is also sleeved inside the movable cavity. The connection block is engaged with a second connection groove. The second connection groove is opened on the outside of the upper connection seat.

[0009] Preferably, one end of the first spring is fixedly connected to the connection block, and the other end of the first spring is fixedly connected to the inner wall of the movable cavity. The end of the connection block away from the first spring is provided with an inclined surface.

[0010] Preferably, a first slider is fixedly connected to the bottom end of the connecting block. The first slider is slidably connected inside a first chute, and the first chute is formed at the bottom end of the movable cavity.

[0011] Preferably, the outer fixing assembly includes a moving groove formed on the outer side of the upper connecting seat. The top end of the outer fixing card is sleeved inside the moving groove. A reset assembly is provided at the bottom of the top end of the outer fixing card. The bottom end of the outer fixing card is engaged with a fixing groove, and the fixing groove is formed on the outer side of the lower connecting seat and is communicated with the first connecting groove.

[0012] Preferably, the reset assembly includes a second chute formed at the bottom of the top end of the outer fixing card. A second slider is slidably connected inside the second chute, and a second spring is arranged inside the second chute. The second slider is fixedly connected to the inner wall of the moving groove. An inclined surface is formed on one side of the bottom end of the outer fixing card close to the lower connecting seat.

[0013] Preferably, one end of the second spring close to the second slider is fixedly connected to the second slider, and the other end of the second spring far from the second slider is fixedly connected to the inner wall of the second chute.

[0014] Preferably, the positioning assembly includes an abutting groove formed on the outer side of the bottom end of the connecting ring and is matched with a positioning block. A sliding groove is formed at the bottom end of the positioning block. A guide rod is fixedly connected inside the sliding groove. A sliding block is sleeved on the outer side of the guide rod, and a third spring is also wound around the outer side of the guide rod. The bottom end of the sliding block is fixedly connected to the bottom end of the inner wall of the first connecting groove. An inclined surface is formed at the top end of the positioning block.

[0015] Preferably, one side of the third spring close to the sliding block is fixedly connected to the sliding block, and the other side of the third spring far from the sliding block is fixedly connected to the inner wall of the sliding groove.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. Through the structural design of the installation mechanism of the present invention, the function of stably connecting the lower pipe pile and the upper pipe pile without using any connecting parts and fixing parts such as screws is realized by relying on the self-weight of the lower pipe pile. It solves the problems that in the assembly process of the existing prestressed concrete pipe piles, screws and special connecting parts are required, and tools such as screwdrivers are also needed for installing the fixing parts such as screws. It is time-consuming and laborious during installation, and the connection stability of the connection part depends on the manual operation of the operator. If the connecting part is not fully tightened due to operation errors, the overall connection stability will decrease. The installation efficiency of the lower pipe pile and the upper pipe pile is improved, and at the same time, the stability of the combination formed by the lower pipe pile and the upper pipe pile is also improved.

[0018] 2. Through the structural design of the automatic connection component, the present invention realizes the function of connecting the lower pipe pile and the upper pipe pile by the self-weight of the lower pipe pile. Compared with the existing installation methods, it is more convenient and fast, and the lower pipe pile and the upper pipe pile can be connected without using any tools, connectors and fasteners.

[0019] 3. Through the structural design of the combination of the external fixing component and the positioning component, the present invention realizes the functions of enhancing the connection stability between the lower pipe pile and the upper pipe pile and restricting the relative rotation between the lower pipe pile and the upper pipe pile, avoiding the disconnection between the lower pipe pile and the upper pipe pile due to the relative rotation between the lower pipe pile and the upper pipe pile after the connection between the lower pipe pile and the upper pipe pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present invention;

[0022] Figure 2 It is a schematic three-dimensional structure diagram of a partial side view cross-section of the present invention;

[0023] Figure 3 It is of the present invention Figure 2 The enlarged structure diagram at position A in;

[0024] Figure 4 It is of the present invention Figure 3 The enlarged structure diagram at position B in;

[0025] Figure 5 It is a schematic three-dimensional structure diagram of a partial front view cross-section of the present invention;

[0026] Figure 6 It is of the present invention Figure 5 The enlarged structure diagram at position C in;

[0027] Figure 7 It is of the present invention Figure 6 The enlarged structure diagram at position D in;

[0028] Figure 8 It is a schematic three-dimensional structure diagram of the local part of the lower connecting seat, the first connecting groove and the fixing groove of the present invention;

[0029] Figure 9 It is a schematic three-dimensional structure diagram of the local part of the connecting ring, the notch, the driving rack and the abutting groove of the present invention.

[0030] In the figure: 1, lower pipe pile; 2, upper pipe pile; 21, upper connection seat; 22, lower connection seat; 23, connection ring; 24, first connection groove; 25, notch; 26, driving rack; 27, transmission gear; 28, transmission cavity; 29, driven rack; 30, storage cavity; 31, connection cavity; 32, movable cavity; 33, first spring; 34, connection block; 35, second connection groove; 36, first slider; 37, first chute; 38, moving groove; 39, external fixing clip; 40, second chute; 41, second slider; 42, second spring; 43, fixing groove; 44, abutting groove; 45, positioning block; 46, sliding groove; 47, guide rod; 48, sliding block; 49, third spring. Specific implementation mode

[0031] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. Embodiment 1

[0032] Please refer to Figures 1-9As shown in the figure, an installation structure of a prestressed concrete pipe pile includes a lower pipe pile 1, and an upper pipe pile 2 is arranged at the bottom end of the lower pipe pile 1; an installation mechanism is arranged between the lower pipe pile 1 and the upper pipe pile 2, and the installation mechanism is used to connect the lower pipe pile 1 and the upper pipe pile 2; the installation mechanism includes an upper connecting seat 21, a lower connecting seat 22, an automatic connection component, an external fixing component and a positioning component. The upper connecting seat 21 is fixedly connected to the bottom end of the lower pipe pile 1, and a lower connecting seat 22 is arranged at the bottom end of the upper connecting seat 21. The lower connecting seat 22 is fixedly connected to the top end of the lower pipe pile 1. The automatic connection component is arranged between the upper connecting seat 21 and the lower connecting seat 22. The external fixing component is arranged outside the upper connecting seat 21 and the lower connecting seat 22. The positioning component is arranged inside the lower connecting seat 22. The automatic connection component is used to automatically connect and fix the lower pipe pile 1 and the upper pipe pile 2. The external fixing component is used to assist in the installation between the lower pipe pile 1 and the upper pipe pile 2. The positioning component is used to limit the relative rotation between the lower pipe pile 1 and the upper pipe pile 2. The automatic connection component includes a connecting ring 23. The connecting ring 23 is fixedly connected to the bottom end of the upper connecting seat 21, and the connecting ring 23 is inserted into the internal of the first connecting groove 24. The first connecting groove 24 is opened at the top end of the lower connecting seat 22. Both the front and rear ends of the connecting ring 23 are provided with notches 25. A driving rack 26 is fixedly connected to the inner wall of the notch 25. The driving rack 26 is engaged with a transmission gear 27. The transmission gear 27 is rotatably connected to the internal of a transmission cavity 28. The transmission cavity 28 is opened inside the lower connecting seat 22 and the transmission cavity 28 is communicated with the first connecting groove 24 and a receiving cavity 30. The receiving cavity 30 is opened at the top end of the lower connecting seat 22. The transmission gear 27 is also engaged with a driven rack 29. The top end of the driven rack 29 is inserted into the internal of a connecting cavity 31. The connecting cavity 31 is opened at the bottom end of the upper connecting seat 21. A movable cavity 32 is opened at one side of the top end of the driven rack 29. A first spring 33 is arranged inside the movable cavity 32, and a connecting block 34 is also sleeved inside the movable cavity 32. The connecting block 34 is engaged with a second connecting groove 35. The second connecting groove 35 is opened on the outside of the upper connecting seat 21. One end of the first spring 33 is fixedly connected to the connecting block 34, and the other end of the first spring 33 is fixedly connected to the inner wall of the movable cavity 32. An inclined surface is opened at one end of the connecting block 34 away from the first spring 33;

[0033] During operation, when the lower pipe pile 1 and the upper pipe pile 2 are to be installed, the connecting ring 23 fixedly connected to the bottom end of the upper connecting seat 21 is first inserted into the first connecting groove 24. When the connecting ring 23 is inserted into the first connecting groove 24, the active rack 26 fixedly connected to the inner wall of the notch 25 drives the transmission gear 27 to rotate, so that the passive rack 29 meshing with the other side of the transmission gear 27 moves upward and is inserted into the connecting cavity 31. When the passive rack 29 is inserted into the connecting cavity 31, the inner wall of the connecting cavity 31 squeezes the inclined surface provided on the connecting block 34, so that the connecting block 34 is pressed under the action of the squeezing force. The connecting ring 23 moves downward into the interior of the active cavity 32 and squeezes the first spring 33, causing the first spring 33 to produce elastic deformation under the action of the squeezing force. When the connecting ring 23 is fully inserted into the interior of the first connecting groove 24, the passive rack 29 is also inserted into the interior of the connecting cavity 31 to the limit. At this time, the squeezing force of the inner wall of the connecting cavity 31 on the connecting block 34 disappears. At this time, the connecting block 34 returns to its original position under the action of the restoring force of the first spring 33, and is inserted into the interior of the second connecting groove 35 and engages with the second connecting groove 35. At this time, the lower pipe pile 1 and the upper pipe pile 2 can be connected through the combined action of the connecting block 34 and the second connecting groove 35.

[0034] Furthermore, a first slider 36 is fixedly connected to the bottom end of the connecting block 34, and the first slider 36 is slidably connected to the inside of a first slide groove 37, and the first slide groove 37 is opened at the bottom end of the movable cavity 32; during operation, when the connecting block 34 moves, the first slider 36 fixedly connected to the connecting block 34 slides synchronously inside the first slide groove 37, and the moving distance of the connecting block 34 is limited by the combined action of the first slider 36 and the first slide groove 37, so as to prevent the connecting block 34 from moving excessively and escaping from the inside of the movable cavity 32 under the action of the restoring force of the first spring 33, thereby making it impossible for the connecting block 34 to engage with the second connecting groove 35, and it is impossible to assemble the lower pipe pile 1 and the upper pipe pile 2.

[0035] Further, the external fixing component includes a moving groove 38, which is opened on the outer side of the upper connecting seat 21. The top end of an external fixing clamp 39 is sleeved inside the moving groove 38. A reset component is arranged at the bottom of the top end of the external fixing clamp 39. The bottom end of the external fixing clamp 39 is engaged with a fixing groove 43, which is opened on the outer side of the lower connecting seat 22. The fixing groove 43 is communicated with the first connecting groove 24. The reset component includes a second sliding groove 40, which is opened at the bottom of the top end of the external fixing clamp 39. A second sliding block 41 is slidably connected inside the second sliding groove 40, and a second spring 42 is arranged inside the second sliding groove 40. The second sliding block 41 is fixedly connected to the inner wall of the moving groove 38. An inclined surface is opened on one side of the bottom end of the external fixing clamp 39 close to the lower connecting seat 22. One end of the second spring 42 close to the second sliding block 41 is fixedly connected to the second sliding block 41, and the other end of the second spring 42 far from the second sliding block 41 is fixedly connected to the inner wall of the second sliding groove 40. During operation, when the connecting ring 23 moves downward and is inserted into the first connecting groove 24, the external fixing clamp 39 is squeezed by the outer wall of the lower connecting seat 22 under the action of the inclined surface opened at its bottom end, and thus moves, causing the second sliding block 41 to slide inside the second sliding groove 40 and squeezing the second spring 42, causing elastic deformation of the second spring 42. When the connecting ring 23 is completely inserted into the first connecting groove 24, the bottom end of the fixing groove 43 is no longer squeezed by the outer wall of the lower connecting seat 22. At this time, the external fixing clamp 39 returns to its original position under the restoring force of the second spring 42 and is inserted into the fixing groove 43, achieving the effect of assisting in fixing the connection between the lower pipe pile 1 and the upper pipe pile 2.

[0036] Further, the positioning component includes an abutting groove 44 which is formed on the outer side of the bottom end of the connecting ring 23 and is matched with the positioning block 45. A sliding groove 46 is formed at the bottom end of the positioning block 45. A guide rod 47 is fixedly connected inside the sliding groove 46. A sliding block 48 is sleeved on the outer side of the guide rod 47, and a third spring 49 is also wound around the outer side of the guide rod 47. The bottom end of the sliding block 48 is fixedly connected to the bottom end of the inner wall of the first connecting groove 24. An inclined surface is formed at the top end of the positioning block 45. One side of the third spring 49 close to the sliding block 48 is fixedly connected to the sliding block 48, and the other side of the third spring 49 far from the sliding block 48 is fixedly connected to the inner wall of the sliding groove 46. During operation, when the connecting ring 23 is inserted into the first connecting groove 24, the abutting groove 44 formed at the bottom end of the connecting ring 23 exerts extrusion on the inclined surface formed on the positioning block 45, causing the positioning block 45 to move towards the fixing groove 43 under the action of the extrusion force until the positioning block 45 is stuck between the fixing groove 43 and the abutting groove 44. At this time, the positioning block 45 moves to the limit, and the connecting ring 23 is completely inserted into the first connecting groove 24. The rotation of the connecting ring 23 can be limited by the cooperation between the positioning block 45, the abutting groove 44 and the fixing groove 43, avoiding relative rotation between the lower pipe pile 1 and the upper pipe pile 2 after connection, and further enhancing the connection stability between the lower pipe pile 1 and the upper pipe pile 2. When the positioning block 45 moves, the sliding block 48 slides inside the sliding groove 46 formed at the bottom end of the positioning block 45 and exerts extrusion on the third spring 49 wound around the outer side of the guide rod 47, causing the third spring 49 to undergo elastic deformation under the action of the extrusion force. The positioning block 45 is stably maintained in the gap between the fixing groove 43 and the abutting groove 44 by the restoring force of the third spring 49.

[0037] The foregoing shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A prestressed concrete pipe pile installation structure, comprising a lower pipe pile (1), wherein an upper pipe pile (2) is arranged at the bottom end of the lower pipe pile (1); characterized in that: A mounting mechanism is provided between the lower pipe pile (1) and the upper pipe pile (2), and the mounting mechanism is used to connect the lower pipe pile (1) and the upper pipe pile (2); The installation mechanism comprises an upper connecting seat (21), a lower connecting seat (22), an automatic connecting component, an external fixing component and a positioning component, wherein the upper connecting seat (21) is fixedly connected to the bottom end of the lower pipe pile (1), the bottom end of the upper connecting seat (21) is provided with a lower connecting seat (22), the lower connecting seat (22) is fixedly connected to the top end of the upper pipe pile (2), the automatic connecting component is arranged between the upper connecting seat (21) and the lower connecting seat (22), the external fixing component is arranged on the outside of the upper connecting seat (21) and the lower connecting seat (22), the positioning component is arranged inside the lower connecting seat (22), the automatic connecting component is used to automatically connect and fix the lower pipe pile (1) and the upper pipe pile (2), the external fixing component is used to assist the installation between the lower pipe pile (1) and the upper pipe pile (2), and the positioning component is used to limit the relative rotation between the lower pipe pile (1) and the upper pipe pile (2); The automatic connection assembly comprises a connection ring (23), the connection ring (23) being fixedly connected to the bottom end of the upper connection seat (21), and the connection ring (23) being inserted into the inside of a first connection groove (24), the first connection groove (24) being opened at the top end of the lower connection seat (22), the connection ring (23) being opened at both the front and rear ends with notches (25), an active rack (26) being fixedly connected to the inner wall of the notch (25), the active rack (26) being meshed with a transmission gear (27), the transmission gear (27) being rotatably connected to the inside of a transmission cavity (28), the transmission cavity (28) being opened inside the lower connection seat (22) and the transmission cavity (28) being connected to the first connection groove (24). 4) is connected to a storage chamber (30), the storage chamber (30) is provided at the top end of the lower connecting seat (22), the transmission gear (27) is also meshed with a passive rack (29), the top end of the passive rack (29) is inserted into the interior of the connection chamber (31), the connection chamber (31) is provided at the bottom end of the upper connecting seat (21), a movable chamber (32) is provided on one side of the top end of the passive rack (29), a first spring (33) is provided inside the movable chamber (32), and a connecting block (34) is also sleeved inside the movable chamber (32), the connecting block (34) is engaged with a second connecting groove (35), and the second connecting groove (35) is provided on the outer side of the upper connecting seat (21).

2. The installation structure of a prestressed concrete pipe pile according to claim 1, characterized in that: One end of the first spring (33) is fixedly connected to the connecting block (34), and the other end of the first spring (33) is fixedly connected to the inner wall of the movable cavity (32); an end of the connecting block (34) away from the first spring (33) is provided with an inclined surface.

3. The installation structure of a prestressed concrete pipe pile according to claim 2, characterized in that: A first sliding block (36) is fixedly connected to the bottom end of the connecting block (34), and the first sliding block (36) is slidably connected to the inside of a first sliding groove (37), and the first sliding groove (37) is opened at the bottom end of the movable cavity (32).

4. The installation structure of a prestressed concrete pipe pile according to claim 1, characterized in that: The external fixing component comprises a movable groove (38), the movable groove (38) being arranged on the outer side of the upper connecting seat (21), the top end of the external fixing card (39) being sleeved inside the movable groove (38), the bottom of the top end of the external fixing card (39) being provided with a reset component, the bottom end of the external fixing card (39) being engaged with a fixing groove (43), the fixing groove (43) being arranged on the outer side of the lower connecting seat (22), and the fixing groove (43) being communicated with the first connecting groove (24).

5. The installation structure of a prestressed concrete pipe pile according to claim 4, characterized in that: The reset assembly comprises a second slide groove (40), the second slide groove (40) is provided at the bottom of the top end of the external fixing card (39), a second slider (41) is slidably connected inside the second slide groove (40), and a second spring (42) is provided inside the second slide groove (40), the second slider (41) is fixedly connected to the inner wall of the movable groove (38), and a slope is provided on one side of the bottom end of the external fixing card (39) close to the lower connecting seat (22).

6. The installation structure of a prestressed concrete pipe pile according to claim 5, characterized in that: One end of the second spring (42) close to the second slider (41) is fixedly connected to the second slider (41), and one end of the second spring (42) away from the second slider (41) is fixedly connected to the inner wall of the second sliding groove (40).

7. The installation structure of a prestressed concrete pipe pile according to claim 1, characterized in that: The positioning assembly comprises an abutment groove (44), the abutment groove (44) being arranged on the outer side of the bottom end of the connecting ring (23), and the abutment groove (44) being matched with a positioning block (45), the bottom end of the positioning block (45) being provided with a sliding groove (46), the interior of the sliding groove (46) being fixedly connected with a guide rod (47), the outer side of the guide rod (47) being sleeved with a sliding block (48), and the outer side of the guide rod (47) being further wound with a third spring (49), the bottom end of the sliding block (48) being fixedly connected with the bottom end of the inner wall of the first connecting groove (24), and the top end of the positioning block (45) being provided with an inclined surface.

8. The installation structure of a prestressed concrete pipe pile according to claim 7, characterized in that: The side of the third spring (49) close to the sliding block (48) is fixedly connected to the sliding block (48), and the side of the third spring (49) away from the sliding block (48) is fixedly connected to the inner wall of the sliding groove (46).

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