Building pipe pile connecting piece and connecting method thereof

Abstract

The invention discloses a building pipe pile connecting piece and a connecting method thereof, and relates to the technical field of concrete prefabricated product connection, the building pipe pile connecting piece comprises a plurality of connecting pins and a plurality of sleeves, and the connecting pins and the sleeves are arranged in a one-to-one mode; the bottom end of the connecting pin is provided with a conical end which is of an integrated structure with the connecting pin and is coaxially arranged with the connecting pin, and the small-diameter end of the conical end is connected with the conical end. Wherein a counter bore is formed in the sleeve, the outer diameter of the connecting pin is equal to the small bore diameter of the counter bore, a middle cylinder is fixed in the large bore diameter of the sleeve, and a plurality of second arc guide strips coaxial with the middle cylinder are fixed to the inner circumferential wall of the middle cylinder. The rotary centering mechanism and the multiple locking petals are arranged, in the process that the connecting pin is inserted into the sleeve, the rotary centering mechanism enables the multiple locking petals to rotate around the center shaft of the sleeve, the multiple locking petals are gradually close to the conical end of the connecting pin, and after the connecting pin is completely inserted, the locking petals are meshed with the conical end.

Description

Technical Field

[0001] The invention relates to the technical field of concrete prefabricated product connection, in particular to a building pipe pile connector and a connection method thereof. Background Art

[0002] Concrete prefabricated products need to be connected by connecting parts, which are generally connected by inserting connecting pins or connecting rods into the prefabricated products and then locking them with locking parts to complete the connection.

[0003] After searching, the Chinese patent document with the authorization announcement number CN217150185U discloses a pipe pile connection structure, including: a connection box body, the connection box body is provided with an opening and a receiving area connected thereto, the receiving area includes a conical inner cavity, the small end of the conical inner cavity is close to the opening, and the connection box body is used to be set in the pipe pile; a locking sleeve, the locking sleeve is connected to the conical inner cavity, including at least two locking petals evenly distributed along the circumference of the conical inner cavity, the locking petals surround a connection hole, and the hole wall of the connection hole is provided with a meshing structure; a connecting pin, the connecting pin includes a first connection end, the first connection end is conical, and the first connection end is connected to the connection hole through a meshing structure; an elastic member, the elastic member includes a conical section, the conical section cooperates with the conical inner cavity, and the small end of the conical section abuts against the large end of the locking sleeve, and the large end of the conical section abuts against the bottom of the receiving area. The above-mentioned pipe pile connection structure is simple and convenient to operate when connected, and the connection structure is stable, which improves the reliability of the use of the pipe pile connection structure.

[0004] After searching, the Chinese patent document with the authorization announcement number CN217150189U discloses a connection assembly, a connection structure and a prefabricated pile. A connection assembly includes: a sleeve, a locking member and an elastic member. Among them, a first accommodating chamber and a second accommodating chamber that are interconnected are provided in the sleeve, an opening is provided at one end of the sleeve close to the second accommodating chamber, a connecting portion is provided in the first accommodating chamber, the inner wall of the second accommodating chamber is in contact with the outer wall of the locking member, and the elastic member is provided in the second accommodating chamber and pushes the locking member to have a tendency to move toward the first accommodating chamber. The above-mentioned connection assembly is used to be pre-buried in the prefabricated pile in advance, and can be used to achieve a tight connection between the connecting pin and the sleeve to prevent the connecting pin from coming out of the sleeve; the connection portion in the first accommodating chamber can be used to achieve pre-tensioning between the steel bar and the sleeve. When the above-mentioned connection assembly is used to connect the prefabricated piles including the first section pile and the second section pile, the first section pile and the second section pile can be tightly connected, the connection method is simple and fast, and can effectively improve the connection efficiency of the prefabricated piles.

[0005] Based on the above search and prior art, it is found that: the above two patents both use the meshing form of the inner cone sleeve to achieve a stable connection between the connecting pin and the sleeve, and the inner cone sleeve is a multi-petal structure, but it does not consider whether a petal of the inner cone sleeve can slide smoothly along the inner cone surface of the sleeve when the connecting pin is inserted. Secondly, the inner side of the inner cone sleeve is provided with teeth, and both patents do not consider whether the majority of the teeth in the inner cone sleeve can mesh with the connecting pin smoothly (such as Figure 1 As shown in the figure, there are certain limitations in actual use. Summary of the invention

[0006] The object of the present invention is to provide a construction pipe pile connector and a connecting method thereof to solve the problems raised in the above background technology.

[0007] The technical solution of the present invention is: a construction pipe pile connector, comprising a plurality of connecting pins and a plurality of sleeves, wherein the plurality of connecting pins and the plurality of sleeves are arranged one to one; Wherein, the bottom end of the connecting pin is provided with a conical end which is integrally structured and coaxially arranged therewith, and the small diameter end of the conical end is connected to the conical end; The sleeve is provided with a countersunk hole inside, the outer diameter of the connecting pin is equal to the small aperture of the countersunk hole, an intermediate cylinder is fixed inside the large aperture of the sleeve, a plurality of second circular arc guide bars coaxially arranged therewith are fixed on the inner peripheral wall of the intermediate cylinder, and a limiting flap is slidably sleeved on the second circular arc guide bar, the side of the limiting flap facing the central axis of the central cylinder is a conical surface, an elastic structure for applying thrust to the limiting flap is provided on the outer side of the second circular arc guide bar, an arc guide groove which is not concentric with the intermediate cylinder is provided on the bottom annular surface of the intermediate cylinder, a sliding column is slidably embedded in the interior of the circular arc guide groove, and a A locking flap, the locking flap is conical on one side facing the central axis of the central cylinder and on the other side facing away from the central axis of the central cylinder, and the conical surface of the locking flap facing away from the central axis of the central cylinder can fit with the conical surface of the limiting flap, one end of the sleeve is fixed with a circular plate coaxially arranged therewith, a positioning cylinder is fixed to the outer side of the circular plate, and a sliding cylinder is slidingly sleeved on the outer side of the positioning cylinder, a plurality of inclined grooves are provided on the outer circumferential surface of the positioning cylinder, a cylinder is fixed to the inner side of the sliding cylinder, and the cylinder is slidably arranged in the inclined groove, a connecting structure is arranged between the outer circumferential surface of the positioning cylinder and the sliding column, and a second spring is arranged inside the positioning cylinder.

[0008] Preferably, the elastic structure includes a first spring, one end of the second arc guide bar is provided with a limiting plate integrally formed therewith, the other end of the second arc guide bar is provided with an extension plate integrally formed therewith, and the two ends of the second spring are respectively fixed on the extension plate and the limiting petal.

[0009] Preferably, the connecting structure includes a first arc guide bar, which is coaxially arranged with the intermediate tube and fixed at the bottom of the intermediate tube. A moving block is slidably sleeved on the first arc conductor, and a straight slot is provided on the outer side of the moving block. A cube with an integral structure therewith is provided at the bottom end of the sliding column, and the cube is slidably embedded in the straight slot.

[0010] Preferably, the connection structure further comprises a connection plate, one end of which is fixed to the outer bottom end of the slide cylinder, the connection plate is aligned with the moving block and a telescopic structure is provided between the two.

[0011] Preferably, the telescopic structure includes a fixed cylinder and a movable column, one end of the movable column is slidably inserted in the fixed cylinder, the other end of the movable column is fixed with a recessed block, the notch of the recessed block is clamped on the movable block, and one end of the fixed cylinder is fixed on the connecting plate.

[0012] Preferably, it also includes a first connecting plate and a second connecting plate, the first connecting plate is in the shape of a circular plate, and the circular surface of the first connecting plate is provided with multiple through holes with a diameter the same as the outer diameter of the connecting pin, the connecting pin is arranged in the through hole, the first connecting plate is exactly the same as the second connecting plate, and the sleeve is coaxially arranged one by one with the through hole on the second connecting plate.

[0013] Preferably, a plurality of grooves are provided on the circumferential outer side of the first connecting plate, a plurality of notches are provided on the circumferential outer side of the second connecting plate, the plurality of notches are aligned one-to-one with the plurality of grooves, a pressing plate with an arc-shaped cross-section is provided inside the groove, a rotating hole is provided on the outer side of the pressing plate, a rotating rod is rotatably installed inside the rotating hole, both ends of the rotating rod are fixed in the notches, when the first connecting plate and the second connecting plate are fitted together, one end of the pressing plate is pushed downward by the first connecting plate, and the other end of the pressing plate is pressed on the top of the groove of the second connecting plate.

[0014] Preferably, the locking flap is provided with a plurality of teeth, and the outer side of the conical end is provided with a meshing groove matched with the teeth.

[0015] The present invention also discloses a method for connecting a building pipe pile connector, and the specific steps are as follows: The first step is to embed and fix multiple sleeves on the ports of the lowered piles; The second step is to lay and fix the second connecting plate on the end surface of the port of the lower pipe pile after the sleeve is embedded and fixed, and the through hole on the second connecting plate is aligned with the sleeve; The third step is to embed and fix a plurality of connecting pins on the ports of the upper pipe pile; Step 4: After the connection pin is embedded and fixed, the first connection plate is laid and fixed on the end surface of the port of the lower pipe pile, and the connection pin passes through the through hole on the first connection plate; The fifth step is to stand the lower pipe pile on the ground, use a crane or other equipment to place the upper pipe pile above the lower pipe pile, then align the connecting pin with the sleeve, move the upper pipe pile downward, and insert the connecting pin of the upper pipe pile into the sleeve.

[0016] The present invention provides a construction pipe pile connector and a connection method thereof through improvement, which has the following beneficial effects compared with the prior art: First, the present invention is provided with a rotation centering mechanism and a plurality of locking petals. When the connecting pin is inserted into the sleeve, the rotation centering mechanism causes the plurality of locking petals to rotate around the central axis of the sleeve and the plurality of locking petals gradually approach the conical end of the connecting pin. When the connecting pin is fully inserted, the locking petals mesh with the conical end. It can be seen that the rotation centering mechanism can ensure that the locking petals mesh with the conical end smoothly, thereby improving the stability of the connection between the locking petals and the conical end. Secondly, the present invention is provided with a pressing plate. During the process of the two connecting plates being fitted together, one end of the pressing plate is pushed downward by the first connecting plate, and the other end of the pressing plate is pressed on the top of the groove of the second connecting plate, thereby improving the fit between the first connecting plate and the second connecting plate, so that the pressing plate can limit the circumferential outer side of the first connecting plate, and the first connecting plate and the second connecting plate are not prone to relative sliding, thereby improving the stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram showing that the locking flap in the prior art is not fully engaged with the connecting pin; Figure 2 It is a schematic diagram of the installation structure of the present invention; Figure 3 This is a schematic diagram of the bonding of the first connecting plate and the second connecting plate of the present invention; Figure 4 It is a schematic diagram of the internal structure of the sleeve of the present invention; Figure 5 It is a schematic diagram of the circular plate and the positioning cylinder structure of the present invention; Figure 6 It is a schematic diagram of the structure of the slide cylinder, the telescopic structure and the concave block of the present invention; Figure 7 It is a schematic diagram of the installation structure of the moving block of the present invention; Figure 8 It is a schematic diagram of the installation structure of the limiting flap and the locking flap of the present invention; Fig. 9 It is a schematic diagram of the locking flap structure of the present invention; Fig.10 It is a schematic diagram of the structure of the intermediate cylinder of the present invention; Fig.11 It is a schematic diagram of the structure of the pressed plate of the present invention; Fig.12 It is a schematic diagram of the cross-sectional structure of the sleeve of the present invention.

[0019] Reference numerals: 1. First connecting plate; 2. Second connecting plate; 3. Connecting pin; 4. Sleeve; 5. Locking flap; 6. Sliding cylinder; 7. Positioning cylinder; 8. Limiting flap; 9. Second spring; 10. Telescopic structure; 11. Intermediate cylinder; 12. Concave block; 13. Conical end; 14. Round plate; 15. Inclined groove; 16. Moving block; 17. First circular arc guide strip; 18. Circular arc guide groove; 19. Second circular arc guide strip; 20. First spring; 21. Extension plate; 22. Cube; 23. Sliding column; 24. Pressing plate; 25. Groove; 26. Limiting plate. DETAILED DESCRIPTION

[0020] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The present invention provides a building pipe pile connector and a connection method thereof through improvement. The technical solution of the present invention is: like Figures 1 to 12 As shown, an embodiment of the present invention provides a construction pipe pile connector, comprising a plurality of connecting pins 3 and a plurality of sleeves 4, wherein the plurality of connecting pins 3 and the plurality of sleeves 4 are arranged one to one; The bottom end of the connecting pin 3 is provided with a conical end 13 which is integrally structured and coaxially arranged therewith, and the small diameter end of the conical end 13 is connected to the conical end 13; Among them, a countersink is opened inside the sleeve 4, the outer diameter of the connecting pin 3 is equal to the small aperture of the countersink, an intermediate cylinder 11 is fixed inside the large aperture of the sleeve 4, and a plurality of second arc guide bars 19 coaxially arranged therewith are fixed on the inner circumferential wall of the intermediate cylinder 11, and a limiting petal 8 is slidably sleeved on the second arc guide bar 19. The second arc bar is arranged so that the limiting petal 8 can only rotate around the central axis of the central cylinder, and the side of the limiting petal 8 facing the central axis of the central cylinder is a conical surface, and the outer side of the second arc guide bar 19 is provided An elastic structure is provided to apply thrust to the limit flap 8. The bottom annular surface of the intermediate cylinder 11 is provided with an arc guide groove 18 which is not concentric with the intermediate cylinder 11. A slide post 23 is slidably embedded in the inner part of the arc guide groove 18. When the slide post 23 slides along the arc guide groove 18, the slide post 23 gradually approaches the central axis of the central cylinder. A locking flap 5 is fixed to the top of the slide post 23. When the slide post 23 slides along the arc guide groove 18, the slide post 23 drives the locking flap 5 to gradually approach the central axis of the central cylinder. The locking flap 5 is moved toward the center One side of the central axis of the cylinder and the side away from the central axis of the central cylinder are both conical, and the conical surface of the locking flap 5 away from the central axis of the central cylinder can fit with the conical surface of the limiting flap 8. When the limiting flap 8 is inserted between the locking flap 5 and the intermediate cylinder 11, if the locking flap 5 is reset along the arc guide groove 18, due to the setting of the limiting flap 8, the locking flap 5 has no activity space, thereby completing self-locking. A circular plate 14 coaxially arranged therewith is fixed at one end of the sleeve 4, and a positioning cylinder 7 is fixed on the outer side of the circular plate 14, and the outer side of the positioning cylinder 7 The sliding sleeve is provided with a slide cylinder 6, and the outer circumferential surface of the positioning cylinder 7 is provided with a plurality of inclined grooves 15. A cylinder is fixed on the inner side of the slide cylinder 6, and the cylinder is slidably arranged in the inclined groove 15. A connecting structure is arranged between the outer circumferential surface of the positioning cylinder 7 and the slide column 23. A second spring 9 is arranged inside the positioning cylinder 7. The locking petal 5 is provided with a plurality of teeth, and a groove matching the teeth is arranged on the outer side of the conical end 13. The design of the teeth is to improve the connection stability and connection strength between the locking petal 5 and the conical end 13.

[0022] When the connecting pin 3 is inserted into the sleeve 4, the conical end 13 of the connecting pin 3 first extends into the sleeve 4, and the conical end 13 contacts the slide cylinder 6, and the conical end 13 applies a downward push to the slide cylinder 6, and the cylindrical body in the slide cylinder 6 moves along the inclined groove 15 of the positioning cylinder 7 on the circular plate 14, and the slide cylinder 6 moves downward and rotates relative to the positioning cylinder 7. At this time, the second spring 9 in the positioning cylinder 7 is compressed; in the process of the slide cylinder 6 moving downward and rotating relative to the positioning cylinder 7, the slide cylinder 6 drives the moving block 16 to rotate through the telescopic structure 10. At this time, the fixed cylinder in the telescopic structure 10 moves downward relative to the moving column, and the moving block 16 moves along the second circular arc guide bar 19. The straight notch on the moving block 16 passes through the square body 22 and the slide The column 23 drives the locking petal 5 to move, that is, the sliding column 23 slides along the arc guide groove 18, and the sliding column 23 drives the locking petal 5 to gradually approach the conical end 13, and the square body 22 on the bottom end of the sliding column 23 slides along the straight groove of the moving block 16. When the locking petal 5 contacts the limiting petal 8, the limiting petal 8 is pushed and the first spring 20 is compressed. When the locking petal 5 can be completely fitted with the conical end 13 on the connecting pin 3, the conical surface of the locking petal 5 away from the central axis of the central tube is concentric with the conical surface of the limiting petal 8. At this time, the first spring 20 is released, and the limiting petal 8 is stuck between the locking petal 5 and the intermediate tube 11. At this time, the locking petal 5 has a tendency to reset. Due to the setting of the limiting petal 8, the locking petal 5 has no activity space, thereby completing self-locking.

[0023] Specifically, in combination with Figure 8 It can be seen that the elastic structure includes a first spring 20, one end of the second arc guide bar 19 is provided with a limiting plate 26 with an integral structure therewith, and the other end of the second arc guide bar 19 is provided with an extension plate 21 with an integral structure therewith, and the two ends of the first spring 20 are respectively fixed on the extension plate 21 and the limiting flap 8. When the locking flap 5 contacts the limiting flap 8, the limiting flap 8 is pushed and the first spring 20 is compressed. When the locking flap 5 can be completely fitted with the conical end 13 on the connecting pin 3, the conical surface of the locking flap 5 that is away from the central axis of the central cylinder is concentric with the conical surface of the limiting flap 8. At this time, the first spring 20 is released, and the limiting flap 8 is stuck between the locking flap 5 and the intermediate cylinder 11.

[0024] Specifically, in combination with Figure 7 It can be seen that the connecting structure includes a first arc guide bar 17, which is coaxially arranged with the intermediate cylinder 11 and fixed at the bottom of the intermediate cylinder 11. A moving block 16 is slidably sleeved on the first arc conductor, and a straight slot is opened on the outer side of the moving block 16. A cube 22 with an integral structure therewith is provided at the bottom end of the sliding column 23, and the cube 22 is slidably embedded in the straight slot. When the moving plate moves along the first arc guide bar 17, the straight slot on the moving block 16 drives the locking flap 5 to move through the cube 22 and the sliding column 23. The setting of the square 22 is to prevent the sliding column 23 from rotating in the arc groove.

[0025] Specifically, in combination with Figure 6 It can be seen that the connecting structure also includes a connecting plate, one end of which is fixed to the outer bottom end of the slide cylinder 6, the connecting plate is aligned with the moving block 16 and a telescopic structure 10 is arranged between the two, the telescopic structure 10 includes a fixed cylinder and a moving column, one end of the moving column is slidably inserted in the fixed cylinder, and the other end of the moving column is fixed with a recessed block 12, the recess of the recessed block 12 is clamped on the moving block 16, one end of the fixed cylinder is fixed on the connecting plate, and the slide cylinder 6 moves downward and rotates relative to the positioning cylinder 7, the slide cylinder 6 drives the connecting plate to rotate, and the connecting plate drives the moving block 16 to rotate with the help of the telescopic structure 10, at this time, the fixed cylinder in the telescopic structure 10 moves downward relative to the moving column.

[0026] Specifically, in combination with Figure 2 , Attachment Figure 3 And attached Fig.11 As shown, a construction pipe pile connector also includes a first connecting plate 1 and a second connecting plate 2. The first connecting plate 1 is in the shape of a circular plate 14. The circular surface of the first connecting plate 1 is provided with a plurality of through holes with a diameter the same as the outer diameter of the connecting pin 3. The connecting pin 3 is arranged in the through hole. The first connecting plate 1 is exactly the same as the second connecting plate 2. The sleeve 4 is coaxially arranged one-to-one with the through hole on the second connecting plate 2. A plurality of grooves 25 are provided on the outer side of the circumference of the first connecting plate 1. A plurality of notches are provided on the outer side of the circumference of the second connecting plate 2. The plurality of notches are aligned one-to-one with the plurality of grooves 25. A pressing plate 24 with an arc-shaped cross section is provided inside the groove 25. A rotating hole is provided on the outer side of the pressing plate 24. A rotating rod is rotatably installed inside the rotating hole. Both ends of the rotating rod are fixed in the notch. When the first connecting plate 1 is connected to the second connecting plate When the plates 2 are fitted together, one end of the pressing plate 24 is pushed downward by the first connecting plate 1, and the other end of the pressing plate 24 is pressed on the top of the groove 25 of the second connecting plate 2. Here, a supplementary explanation is given to the pressing plate 24. When the first connecting plate 1 and the second connecting plate 2 are completely fitted together, one end of the pressing plate 24 presses the first connecting plate 1, and the pressing plate 24 contacts the first connecting plate 1 at the same time; in the process of the two connecting plates fitting each other, one end of the pressing plate 24 is pushed downward by the first connecting plate 1, and the other end of the pressing plate 24 is pressed on the top of the groove 25 of the second connecting plate 2, thereby improving the fit between the first connecting plate 1 and the second connecting plate 2, so that the pressing plate 24 can limit the circumferential outer side of the first connecting plate 1, and the first connecting plate 1 and the second connecting plate 2 are not easy to slide relative to each other, thereby improving the stability of the connection.

[0027] A method for connecting a building pipe pile connector, the specific steps are as follows: The first step is to embed and fix multiple sleeves 4 on the ports of the lowered piles; Step 2: After the sleeve 4 is embedded and fixed, the second connecting plate 2 is laid and fixed on the end surface of the port of the lower pipe pile, and the through hole on the second connecting plate 2 is aligned with the sleeve 4; The third step is to embed and fix a plurality of connecting pins 3 on the ports of the upper pipe pile; Step 4: After the connection pin 3 is embedded and fixed, the first connection plate 1 is laid and fixed on the end surface of the port of the lower pipe pile, and the connection pin 3 passes through the through hole on the first connection plate 1; The fifth step is to stand the lower pipe pile on the ground, use a crane or other equipment to place the upper pipe pile above the lower pipe pile, then align the connecting pin 3 with the sleeve 4, move the upper pipe pile downward, and insert the connecting pin 3 of the upper pipe pile into the sleeve 4.

[0028] Working principle: When the first connecting plate 1 and the second connecting plate 2 are fitted together, the connecting pin 3 is inserted into the sleeve 4. When the connecting pin 3 is inserted into the sleeve 4, the conical end 13 of the connecting pin 3 first extends into the sleeve 4, and the conical end 13 contacts the slide cylinder 6. The conical end 13 pushes the slide cylinder 6 downward, and the cylinder in the slide cylinder 6 moves along the inclined groove 15 of the positioning cylinder 7 on the circular plate 14. The slide cylinder 6 moves downward and rotates relative to the positioning cylinder 7. At this time, the second spring 9 in the positioning cylinder 7 is compressed; As the slide cylinder 6 moves downward relative to the positioning cylinder 7 and rotates, the slide cylinder 6 drives the connecting plate to rotate, and the connecting plate drives the moving block 16 to rotate with the help of the telescopic structure 10. At this time, the fixed cylinder in the telescopic structure 10 moves downward relative to the moving column, and the moving block 16 moves along the second arc guide bar 19. The straight notch on the moving block 16 drives the locking petal 5 to move through the square body 22 and the slide column 23, that is, the slide column 23 slides along the arc guide groove 18, and the slide column 23 drives the locking petal 5 to gradually approach the conical end 13, and the bottom of the slide column 23 The square body 22 on the end slides along the straight notch of the moving block 16. When the locking flap 5 contacts the limiting flap 8, the limiting flap 8 is pushed and the first spring 20 is compressed. When the locking flap 5 can be completely fitted with the conical end 13 on the connecting pin 3, the conical surface of the locking flap 5 away from the central axis of the central cylinder is concentric with the conical surface of the limiting flap 8. At this time, the first spring 20 is released, and the limiting flap 8 is stuck between the locking flap 5 and the intermediate cylinder 11. At this time, the locking flap 5 has a tendency to reset. Due to the setting of the limiting flap 8, the locking flap 5 has no activity space, thereby completing self-locking; During the process of the two connecting plates fitting together, one end of the pressing plate 24 is pushed downward by the first connecting plate 1, and the other end of the pressing plate 24 is pressed on the top of the groove 25 of the second connecting plate 2, thereby improving the fit between the first connecting plate 1 and the second connecting plate 2, so that the pressing plate 24 can limit the circumferential outer side of the first connecting plate 1, and the first connecting plate 1 and the second connecting plate 2 are not prone to relative sliding, thereby improving the stability of the connection.

[0029] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A construction pipe pile connector, comprising a plurality of connecting pins (3) and a plurality of sleeves (4), characterized in that: The plurality of connecting pins (3) and the plurality of sleeves (4) are arranged one to one; The bottom end of the connecting pin (3) is provided with a conical end (13) which is integrally structured and coaxially arranged therewith, and the small diameter end of the conical end (13) is connected to the conical end (13); A countersunk hole is provided inside the sleeve (4), the outer diameter of the connecting pin (3) is equal to the small hole diameter of the countersunk hole, an intermediate cylinder (11) is fixed inside the large hole diameter of the sleeve (4), a plurality of second circular arc guide bars (19) coaxially arranged therewith are fixed on the inner peripheral wall of the intermediate cylinder (11), and a limiting flap (8) is slidably sleeved on the second circular arc guide bar (19), the side of the limiting flap (8) facing the central axis of the central cylinder is a conical surface, an elastic structure for applying thrust to the limiting flap (8) is provided on the outer side of the second circular arc guide bar (19), an arc guide groove (18) which is not concentric with the intermediate cylinder (11) is provided on the bottom annular surface of the intermediate cylinder (11), a sliding column (23) is slidably embedded inside the circular arc guide groove (18), and the top end of the sliding column (23) is fixedly A locking flap (5) is fixed, and the locking flap (5) is in contact with a conical surface on one side facing the central axis of the central cylinder and on the other side facing away from the central axis of the central cylinder, and the conical surface of the locking flap (5) facing away from the central axis of the central cylinder can fit with the conical surface of the limiting flap (8). A circular plate (14) coaxially arranged therewith is fixed to one end of the sleeve (4), a positioning cylinder (7) is fixed to the outer side of the circular plate (14), and a sliding cylinder (6) is slidingly sleeved on the outer side of the positioning cylinder (7), a plurality of inclined grooves (15) are provided on the outer circumferential surface of the positioning cylinder (7), a cylinder is fixed to the inner side of the sliding cylinder (6), and the cylinder is slidably arranged in the inclined groove (15), a connecting structure is arranged between the outer circumferential surface of the positioning cylinder (7) and the sliding column (23), and a second spring (9) is arranged inside the positioning cylinder (7).

2. A construction pipe pile connector according to claim 1, characterized in that: The elastic structure comprises a first spring (20), one end of the second circular arc guide bar (19) is provided with a limiting plate (26) integrally formed therewith, the other end of the second circular arc guide bar (19) is provided with an extension plate (21) integrally formed therewith, and the two ends of the second spring (9) are respectively fixed to the extension plate (21) and the limiting flap (8).

3. A construction pipe pile connector according to claim 1, characterized in that: The connection structure comprises a first circular arc conductor (17), the first circular arc conductor (17) being coaxially arranged with the intermediate cylinder (11) and fixed at the bottom of the intermediate cylinder (11), a moving block (16) being slidably sleeved on the first circular arc conductor, a straight slot being provided on the outer side of the moving block (16), and a cube (22) being integrally structured therewith being provided at the bottom end of the sliding column (23), and the cube (22) being slidably embedded in the straight slot.

4. A construction pipe pile connector according to claim 3, characterized in that: The connection structure also includes a connection plate, one end of which is fixed to the outer bottom end of the slide cylinder (6), the connection plate is aligned with the moving block (16), and a telescopic structure (10) is provided between the two.

5. A construction pipe pile connector according to claim 4, characterized in that: The telescopic structure (10) comprises a fixed cylinder and a movable column, one end of the movable column is slidably inserted into the fixed cylinder, the other end of the movable column is fixed to a recessed block (12), a notch of the recessed block (12) is clamped on the movable block (16), and one end of the fixed cylinder is fixed to a connecting plate.

6. A construction pipe pile connector according to claim 1, characterized in that: It also comprises a first connecting plate (1) and a second connecting plate (2), wherein the first connecting plate (1) is in the shape of a circular plate (14), a plurality of through holes having a diameter identical to the outer diameter of the connecting pins (3) are provided on the circular surface of the first connecting plate (1), the connecting pins (3) being arranged in the through holes, the first connecting plate (1) being identical to the second connecting plate (2), and the sleeve (4) being coaxially arranged one-to-one with the through holes on the second connecting plate (2).

7. A construction pipe pile connector according to claim 6, characterized in that: The first connecting plate (1) is provided with a plurality of grooves (25) on its circumferential outer side, and the second connecting plate (2) is provided with a plurality of notches on its circumferential outer side. The notches are aligned one-to-one with the grooves (25). A pressing plate (24) having an arc-shaped cross section is provided inside the grooves (25). A rotating hole is provided on the outer side of the pressing plate (24). A rotating rod is rotatably installed inside the rotating hole. Both ends of the rotating rod are fixed in the notches. When the first connecting plate (1) and the second connecting plate (2) are in contact with each other, one end of the pressing plate (24) is pushed downward by the first connecting plate (1), and the other end of the pressing plate (24) is pressed against the top of the groove (25) of the second connecting plate (2).

8. A construction pipe pile connector according to claim 7, characterized in that: The locking flap (5) is provided with a plurality of teeth, and the outer side of the conical end (13) is provided with a meshing groove matched with the teeth.

9. A method for connecting a construction pipe pile connector, the method being applied to the construction pipe pile connector according to any one of claims 6 to 8, characterized in that: The specific steps are as follows: The first step is to embed and fix a plurality of sleeves (4) on the ports of the lowered piles; The second step is to lay and fix the second connecting plate (2) on the end surface of the port of the lower pipe pile after the sleeve (4) is embedded and fixed, and the through hole on the second connecting plate (2) is aligned with the sleeve (4); The third step is to embed and fix a plurality of connecting pins (3) on the ports of the upper pipe pile; Step 4: After the connecting pin (3) is embedded and fixed, the first connecting plate (1) is laid and fixed on the end surface of the port of the lower pipe pile, and the connecting pin (3) passes through the through hole on the first connecting plate (1); In the fifth step, the lower pipe pile is placed on the ground, and the upper pipe pile is placed above the lower pipe pile using a crane or other equipment, and then the connecting pin (3) is aligned with the sleeve (4), and the upper pipe pile is moved downward, and the connecting pin (3) of the upper pipe pile is inserted into the sleeve (4).

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