Automatic precast pier column stacking device

Abstract

The application belongs to the technical field of prefabricated pier columns, in particular to an automatic stacking device for prefabricated pier columns, which comprises pier column bodies, a first stacking plate and a second stacking plate; the number of stacking plates of a single pier column body is two and they are symmetrically arranged; the first stacking plate and the second stacking plate are arranged at intervals; the first stacking plate is composed of a first tightening plate and a first tightening ring; the second stacking plate is composed of a second tightening plate and a second tightening ring; the first tightening plate is clamped into the interior of the second tightening plate, at which time the two pier columns are in a horizontal state on the ground; then the staff ties the hoisting ropes of the external crane to the hooks in the middle of the tightening rings respectively and starts the crane to pull the pier columns from the horizontal state to the vertical state, so that the pier columns are arranged in a column on one side; at this time, the automatic stacking treatment of the pier columns can be carried out, which not only can save the placement space, but also can facilitate the use of the pier columns afterwards, can be suitable for pier columns of different weights and has a wide range of use.

Description

Technical Field

[0001] This invention belongs to the field of precast pier technology, specifically an automatic precast pier stacking device. Background Technology

[0002] Precast concrete bridge piers, as a new type of bridge substructure construction technology, have unparalleled advantages over traditional construction processes, such as factory prefabrication, standardized construction, and rapid installation. They can effectively reduce the construction cycle, improve the quality of bridge construction, and have significant advantages such as being green, energy-saving, and environmentally friendly.

[0003] Bridge piers are the load-bearing system of bridge structure, and the construction quality of piers directly affects the safety performance of bridge structure. For precast piers, they need to be assembled with the foundation abutment to complete the function of supporting the bridge deck.

[0004] Currently, there is a type of prefabricated pier, which involves breaking down the pier into several sections, prefabricating them in a prefabrication yard, and then using an overall hoisting process to transport them to the site for assembly into a pier. After assembly, wet joint concrete is poured in place to connect the pier into a whole. When manufacturing the several sections, the manufactured piers need to be stacked in a row for later use. Although they are currently broken down into several sections, their own weight is still relatively high, making stacking them quite troublesome and not conducive to the later use of the piers.

[0005] Therefore, the present invention provides an automatic stacking device for precast pier columns. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: An automatic precast pier stacking device of this invention includes a pier body, a first stacking plate, and a second stacking plate; the number of stacking plates for a single pier body is two, and they are symmetrically arranged; the first stacking plate and the second stacking plate are spaced apart; the first stacking plate is composed of a first tightening plate and a first winding ring; the second stacking plate is composed of a second tightening plate and a second winding ring; the middle parts of the first winding ring and the middle parts of the second winding ring are hook-shaped, as shown in the figure; an embedding groove is provided inside the first tightening plate; the shape of the second tightening plate is adapted to the shape of the embedding groove.

[0008] Currently, there is a type of prefabricated pier, which involves disassembling the pier into several sections, prefabricating them in a prefabrication yard, and then transporting them to the site using a whole-unit hoisting process to assemble them into a pier. After assembly, wet joint concrete is poured to connect the pier into a whole. When manufacturing the individual sections, the prefabricated piers need to be stacked in a row for later use. Although currently disassembled into several sections, their weight is still considerable, making stacking them cumbersome and unfavorable for later use. When stacking different prefabricated piers, because the shape of the piers is generally larger at one end than the other, there is still a certain gap between them and the ground when they are laid horizontally. Therefore, workers first secure the two first tightening plates and the first winding rings along the gap under the pier. As shown in Figures 1 and 2, the two first tightening plates and the first tightening ring are tightly wrapped together, with the middle part being hook-shaped. The other pier is tightened in the same way. Then, the workers move the two piers to the same horizontal plane by driving a forklift, and the first and second tightening plates abut against each other, so that the first tightening plate is locked inside the second tightening plate, as shown in the figure. At this time, the two piers are horizontal on the ground. Then, the workers tie the lifting ropes of the external crane to the hooks in the middle of the tightening rings and start the crane to pull the piers from the horizontal position to the vertical position, so that the piers are arranged in a row on one side. At this time, the piers can be automatically stacked, which not only saves placement space, but also facilitates the use of the piers later. It is suitable for piers of different weights and has a wide range of applications.

[0009] Preferably, a columnar groove is provided below the first winding ring; a through rod is fixedly connected to the lower part of the other first winding ring; the shape of the through rod and the columnar groove are adapted to each other; during operation, when the two first winding rings approach each other, the through rods at the bottom of the first winding rings at different positions will be inserted into the columnar groove of the other first winding ring, which is beneficial for the winding rings to clamp the pier column, thereby facilitating the subsequent stacking of the pier column.

[0010] Preferably, an annular plate is fixedly connected above the first tightening ring; a through column is fixedly connected above the other corresponding first tightening ring; the through column is arc-shaped; a through groove is formed on the surface of the annular plate; the shape of the through groove matches the shape of the through column; during operation, when the two first tightening rings approach each other, the through columns on the surfaces of the first tightening rings at different positions will be stuck in the other through groove, and the tops of the two first tightening rings will be hook-shaped, thus facilitating the subsequent lifting and stacking of the pier column by the crane.

[0011] Preferably, the inner wall of the through groove is fixedly connected with conical teeth; multiple conical teeth are provided and arranged in a circular array on the inner wall of the through groove; teeth are fixedly connected to both the upper and lower sides of the through column; the shape of the teeth matches the shape of the conical teeth; during operation, when the through column is placed on the inner wall of the through groove, the teeth on the upper and lower sides of the through column will engage with the surface of the conical teeth on the inner wall of the through groove. The mutual meshing of the teeth and conical teeth at different positions can improve the stability of the crane when lifting the pier column and make it more convenient to use.

[0012] Preferably, one side of the second tightening plate is rotatably connected with an oblique retaining ring; the number of oblique retaining rings on the surface of a single second tightening plate is two, and they are symmetrically arranged; a limiting retaining ring is installed inside the first tightening plate; the number of limiting retaining rings inside a single first tightening plate is two, and they are symmetrically arranged; the oblique retaining rings and the limiting retaining rings are arranged in a one-to-one correspondence; the two retaining rings hook together in a hook state, ensuring the stability of the connection between the first tightening plate and the second tightening plate, and also improving the stability between the two piers, which facilitates the lifting and stacking of the piers by the crane.

[0013] Preferably, a telescopic post is fixedly connected to the side surface of the oblique retaining ring; a telescopic spring is sleeved on the outer surface of the telescopic post; the telescopic post and the telescopic spring are connected to the surface of the second tightening plate away from the oblique retaining ring; when the oblique retaining ring is compressed, it will cause the telescopic post and the telescopic spring on its other side to compress, and when the oblique retaining ring and the limiting retaining ring are engaged with each other, under the pressure of the telescopic post and the telescopic spring, the oblique retaining ring will be tightly engaged with the limiting retaining ring, thereby facilitating the connection between the two tightening rings.

[0014] Preferably, a telescopic limiting rod is fixedly connected to the surface of the limiting ring; a limiting spring is sleeved on the outer surface of the telescopic limiting rod; the side of the telescopic limiting rod and the limiting spring away from the limiting ring is connected to the inner wall of the first tightening plate; when the oblique rings and limiting rings on both sides are hooked together, under the interaction of the telescopic column, the telescopic spring, the telescopic limiting rod, and the limiting spring, the oblique rings and the limiting rings will press against each other, which brings convenience to the lifting of the pier column.

[0015] Preferably, the inner walls of both the limiting ring and the inclined ring are fixedly connected with inclined teeth; multiple inclined teeth are provided and arranged in a circular array on the inner walls of the limiting ring and the inclined ring; when the limiting ring and the inclined ring are engaged with each other, the inclined teeth on the inner wall of the limiting ring and the inclined teeth on the surface of the inclined ring will approach each other, which improves the stability of the piers after stacking and improves the safety of the staff during use.

[0016] Preferably, clamping plates are slidably connected inside both the first and second tightening rings; the inner walls of both the first and second tightening rings are provided with limiting grooves that are adapted to the clamping plates; during operation, when the second tightening plate moves inside the first tightening plate, the clamping plate inside the tightening plate is compressed and will move the side closest to the pier, thereby providing a certain supporting force to the pier, making it less likely for the pier to tilt, and facilitating the subsequent use of the pier.

[0017] Preferably, a vertical rod is fixedly connected to one side of the clamping plate; both ends of the vertical rod are in contact with the inner wall of the winding ring and are slidably connected inside the winding ring; the vertical rod is provided to facilitate the pressure of the clamping plate and to allow it to move, which is convenient for stacking the pier columns.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. The precast pier automatic stacking device of the present invention involves clamping the first tightening plates and the first winding rings on both sides, as shown in Figures 1 and 2. The two first tightening plates and the first winding rings are mutually wrapped, with the middle part being hook-shaped. The other pier is wrapped in the same way. Then, the worker moves the two piers to the same horizontal plane by driving a forklift, and the first tightening plate and the second tightening plate abut against each other, so that the first tightening plate is inserted into the interior of the second tightening plate. At this time, the two piers are horizontal on the ground. Then, the worker attaches the lifting rope of the external crane to the hook in the middle of the tightening ring and starts the crane to pull the piers from the horizontal state to the vertical state, so that the piers are arranged in a row on one side. At this time, the piers can be automatically stacked, which not only saves placement space, but also facilitates the use of the piers later. It is applicable to piers of different weights and has a wide range of applications.

[0020] 2. The precast pier automatic stacking device of the present invention, when the second tightening plate moves along the inner wall of the first tightening plate, the inclined retaining ring on the surface of the second tightening plate is compressed. As the second tightening plate moves into the first tightening plate, the inclined retaining ring gradually comes into contact with the limiting retaining ring, and the two retaining rings hook together in a hook state, ensuring the stability of the connection between the first tightening plate and the second tightening plate, and also improving the stability between the two piers. This facilitates the lifting and stacking of the piers by the crane, improving the stability of the two piers when they are lifted and stacked. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2This is a partial structural schematic diagram of the first and second stacking plates of the present invention;

[0024] Figure 3 This is a partial structural schematic diagram of the second tightening plate and the first tightening plate in this invention;

[0025] Figure 4 This is a schematic diagram of the first winding ring portion of the present invention;

[0026] Figure 5 This is a schematic diagram of the second tightening plate part in this invention;

[0027] Figure 6 This is a schematic diagram of the oblique retaining ring and the limiting retaining ring in this invention;

[0028] Figure 7 This is a schematic diagram of the vertical rod structure in the second embodiment of the present invention.

[0029] In the diagram: 1. Pier column body; 2. First stacking plate; 21. First tightening plate; 22. First winding ring; 3. Second stacking plate; 31. Second tightening plate; 32. Second winding ring; 4. Column groove; 5. Through rod; 6. Ring plate; 7. Through column; 8. Through groove; 9. Conical tooth; 10. Tooth; 11. Inclined retaining ring; 12. Limiting retaining ring; 13. Telescopic column; 14. Telescopic spring; 15. Telescopic limiting rod; 16. Limiting spring; 17. Inclined tooth; 18. Clamping plate; 19. Vertical rod. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] Example 1

[0032] like Figures 1 to 6 As shown in the embodiment of the present invention, an automatic precast pier stacking device includes a pier body 1, a first stacking plate 2, and a second stacking plate 3; the number of stacking plates for a single pier body 1 is two, and they are arranged symmetrically; the first stacking plate 2 and the second stacking plate 3 are arranged at intervals; the first stacking plate 2 is composed of a first tightening plate 21 and a first winding ring 22; the second stacking plate 3 is composed of a second tightening plate 31 and a second winding ring 32; the middle parts of the first winding ring 22 and the middle parts of the second winding ring 32 are hook-shaped, such as... Figure 2 As shown; the first tightening plate 21 has an embedded groove inside; the shape of the second tightening plate 31 is adapted to the shape of the embedded groove;

[0033] Currently, there is a type of prefabricated pier, which involves disassembling the pier into several sections, prefabricating them in a prefabrication yard, and then transporting them to the site using a whole-unit hoisting process to assemble them into a pier. After assembly, wet joint concrete is poured to connect the pier into a whole. When manufacturing the various sections, the prefabricated piers need to be stacked in a row for later use. Although currently disassembled into several sections, their weight is still considerable, making stacking them cumbersome and unfavorable for later use. When stacking different prefabricated piers, because the shape of the piers is generally larger at one end and smaller at the other, there is still a certain gap between them and the ground when they are laid horizontally. Therefore, workers first clamp the two first tightening plates 21 and the first tightening rings 22 along the gap under the pier, securing them on both sides. Figure 2 and Figure 3 As shown, the two first tightening plates 21 and the first tightening ring 22 are intertwined, with the middle part being hook-shaped. The other pier is tightened in the same way. Then, the workers move the two piers to the same horizontal plane by driving a forklift, and the first tightening plate 21 and the second tightening plate 31 abut against each other, so that the first tightening plate 21 is inserted into the interior of the second tightening plate 31, as shown in the figure. At this time, the two piers are horizontal on the ground. Then, the workers tie the lifting rope of the external crane to the hook in the middle of the tightening ring and start the crane to pull the piers from the horizontal state to the vertical state, so that the piers are arranged in a row on one side. At this time, the piers can be automatically stacked, which not only saves the placement space, but also facilitates the use of the piers later. It is applicable to piers of different weights and has a wide range of applications.

[0034] A columnar groove 4 is provided below the first tightening ring 22; a through rod 5 is fixedly connected to the lower part of the other first tightening ring 22; the shape of the through rod 5 and the columnar groove 4 are adapted to each other; during operation, when the two first tightening rings 22 approach each other, the through rod 5 at the bottom of the first tightening ring 22 at different positions will be inserted into the columnar groove 4 of the other first tightening ring 22, which is beneficial for the tightening ring to clamp the pier column, thereby facilitating the subsequent stacking of the pier column.

[0035] An annular plate 6 is fixedly connected above the first tightening ring 22; a through column 7 is fixedly connected above the other corresponding first tightening ring 22; the through column 7 is arc-shaped; a through groove 8 is provided on the surface of the annular plate 6; the shape of the through groove 8 is adapted to the shape of the through column 7; during operation, when the two first tightening rings 22 approach each other, the through columns 7 on the surface of the first tightening rings 22 at different positions will be stuck in the other through groove 8, and the tops of the two first tightening rings 22 are hook-shaped, which facilitates the subsequent lifting and stacking of the pier by the crane.

[0036] The inner wall of the through groove 8 is fixedly connected with conical teeth 9; multiple conical teeth 9 are provided and arranged in a circular array on the inner wall of the through groove 8; teeth 10 are fixedly connected to both the upper and lower sides of the through column 7; the shape of the teeth 10 is adapted to the shape of the conical teeth 9; during operation, when the through column 7 is placed on the inner wall of the through groove 8, the teeth 10 on the upper and lower sides of the through column 7 will be engaged with the surface of the conical teeth 9 on the inner wall of the through groove 8. The mutual meshing of the teeth 10 and the conical teeth 9 at different positions can improve the stability of the crane when lifting the pier column and make it more convenient to use.

[0037] A slanted retaining ring 11 is rotatably connected to one side of the second tightening plate 31; there are two slanted retaining rings 11 on the surface of a single second tightening plate 31, and they are arranged symmetrically; a limiting retaining ring 12 is installed inside the first tightening plate 21; there are two limiting retaining rings 12 inside a single first tightening plate 21, and they are arranged symmetrically; the slanted retaining rings 11 and the limiting retaining rings 12 are arranged in a one-to-one correspondence;

[0038] During operation, as the second tightening plate 31 moves along the inner wall of the first tightening plate 21, the inclined retaining ring 11 on the surface of the second tightening plate 31 is pressed and is in a compressed state. As the second tightening plate 31 moves into the first tightening plate 21, the inclined retaining ring 11 gradually comes into contact with the limiting retaining ring 12. As shown in the figure, the two retaining rings hook together in a hook state, ensuring the stability of the connection between the first tightening plate 21 and the second tightening plate 31, and also improving the stability between the two piers. This facilitates the lifting and stacking of the piers by the crane, improving the stability of the two piers when they are lifted and stacked.

[0039] A telescopic post 13 is fixedly connected to the side surface of the oblique retaining ring 11; a telescopic spring 14 is sleeved on the outer surface of the telescopic post 13; the telescopic post 13 and the telescopic spring 14 are connected to the surface of the second tightening plate 31 away from the oblique retaining ring 11.

[0040] During operation, when the inclined retaining ring 11 moves along the first tightening plate 21, the inclined retaining ring 11 is compressed, which will cause the telescopic column 13 and the telescopic spring 14 on the other side to compress. When the inclined retaining ring 11 and the limiting retaining ring 12 are engaged with each other, under the pressure of the telescopic column 13 and the telescopic spring 14, the inclined retaining ring 11 will be tightly engaged with the limiting retaining ring 12, thereby facilitating the connection between the two tightening rings.

[0041] The surface of the limiting ring 12 is fixedly connected to the telescopic limiting rod 15; the outer surface of the telescopic limiting rod 15 is sleeved with a limiting spring 16; the side of the telescopic limiting rod 15 and the limiting spring 16 away from the limiting ring 12 is connected to the inner wall of the first tightening plate 21; during operation, when the oblique rings 11 and the limiting rings 12 on both sides are hooked together, under the interaction of the telescopic column 13, the telescopic spring 14 and the telescopic limiting rod 15 and the limiting spring 16, the oblique rings 11 and the limiting rings 12 will press against each other, which brings convenience to the lifting of the pier column.

[0042] Both the limiting ring 12 and the oblique ring 11 have oblique teeth 17 fixedly connected to their inner walls. Multiple oblique teeth 17 are provided and arranged in a circular array on the inner walls of the limiting ring 12 and the oblique ring 11. When the limiting ring 12 and the oblique ring 11 are engaged with each other, the oblique teeth 17 on the inner wall of the limiting ring 12 and the oblique teeth 17 on the surface of the oblique ring 11 will approach each other, which improves the stability of the piers after they are stacked and improves the safety of the staff when using them.

[0043] Both the first tightening ring 22 and the second tightening ring 32 are slidably connected to clamping plates 18; the inner walls of the first tightening ring 22 and the second tightening ring 32 are provided with limiting grooves that are adapted to the clamping plates 18; during operation, when the second tightening plate 31 moves inside the first tightening plate 21, the clamping plate 18 inside the tightening plate is pressed and will move the side closest to the pier, thereby providing a certain supporting force to the pier, making it less likely for the pier to tilt, and facilitating the subsequent use of the pier.

[0044] Example 2

[0045] like Figure 7 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a vertical rod 19 is fixedly connected to one side of the clamping plate 18; the two ends of the vertical rod 19 are respectively in contact with the inner wall of the winding ring and are slidably connected inside the winding ring; the vertical rod 19 is provided to facilitate its pressure on the clamping plate 18 and to allow it to move, which is convenient for stacking the pier columns.

[0046] During the work, when stacking different precast piers, because the shape of the piers is generally larger at one end and smaller at the other, there is still a certain gap between them and the ground when they are laid horizontally. Therefore, the workers first clamp the two first tightening plates 21 and the first tightening rings 22 along the gap under the pier, as shown in the figure. The two first tightening plates 21 and the first tightening rings 22 are intertwined, with the middle part being hook-shaped. The other pier is tightened in the same way. Then, the workers move the two piers to the designated location using a forklift. On the same horizontal plane, the first tightening plate 21 and the second tightening plate 31 abut against each other, so that the first tightening plate 21 is inserted into the interior of the second tightening plate 31, as shown in the figure. At this time, the two piers are horizontal on the ground. Then, the workers tie the lifting rope of the external crane to the hook in the middle of the tightening ring and start the crane to pull the piers from the horizontal state to the vertical state, so that the piers are arranged in a row on one side. At this time, the piers can be automatically stacked, which not only saves the placement space, but also facilitates the use of the piers later. It is applicable to piers of different weights and has a wide range of applications.

[0047] When the two first tightening rings 22 approach each other, the through rods 5 at the bottom of the first tightening rings 22 at different positions will be engaged in the column grooves 4 of the other first tightening ring 22, which is beneficial for the tightening rings to clamp the pier column, thus facilitating the subsequent stacking of the pier column; when the two first tightening rings 22 approach each other, the through rods 7 on the surface of the first tightening rings 22 at different positions will be engaged in the other through grooves 8, and the top of the two first tightening rings 22 will be hook-shaped, which will facilitate the subsequent lifting of the pier column by the crane;

[0048] When the through column 7 is placed on the inner wall of the through groove 8, the teeth 10 on the upper and lower sides of the through column 7 will engage with the conical teeth 9 on the inner wall of the through groove 8. The meshing of the teeth 10 and conical teeth 9 at different positions can improve the stability of the crane when lifting the pier column. When the second tightening plate 31 moves along the inner wall of the first tightening plate 21, the inclined retaining ring 11 on the surface of the second tightening plate 31 is compressed. As the second tightening plate 31 moves into the first tightening plate 21, the inclined retaining ring 11 will gradually come into contact with the limiting retaining ring 12. As shown in the figure, the two retaining rings will hook together in a hook state, ensuring the stability of the connection between the first tightening plate 21 and the second tightening plate 31, and also improving the stability between the two pier columns. When the crane lifts and stacks the piers, it improves the stability of the two piers when they are lifted. When the inclined retaining ring 11 moves along the first tightening plate 21, the inclined retaining ring 11 is compressed, which will cause the telescopic column 13 and telescopic spring 14 on the other side to compress. When the inclined retaining ring 11 and the limiting retaining ring 12 are engaged, the inclined retaining ring 11 will be tightly engaged with the limiting retaining ring 12 under the pressure of the telescopic column 13 and the telescopic spring 14, thus facilitating the connection between the two tightening rings. When the inclined retaining rings 11 and the limiting retaining rings 12 on both sides are hooked together, the inclined retaining rings 11 and the limiting retaining rings 12 will press against each other under the interaction of the telescopic column 13, the telescopic spring 14 and the telescopic limiting rod 15 and the limiting spring 16, which brings convenience to the lifting of the piers.

[0049] When the limiting ring 12 and the inclined ring 11 are engaged, the inclined teeth 17 on the inner wall of the limiting ring 12 and the inclined teeth 17 on the surface of the inclined ring 11 will approach each other, which improves the stability of the piers after they are stacked and improves the safety of the workers when using them. When the second tightening plate 31 moves inside the first tightening plate 21, the clamping plate 18 inside the tightening plate is compressed and will move the side closest to the pier, thereby providing a certain supporting force to the pier and making it less likely for the pier to tilt, which facilitates the use of the pier afterward.

[0050] The foregoing has shown and described 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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precast pier automatic stacking device, comprising a pier body (1), a first stacking plate (2) and a second stacking plate (3); characterized in that: The number of the stacking plates of a single said pier body (1) is two, and they are symmetrically arranged; the first stacking plate (2) and the second stacking plate (3) are arranged at intervals; the first stacking plate (2) is composed of a first tightening plate (21) and a first winding ring (22); the second stacking plate (3) is composed of a second tightening plate (31) and a second winding ring (32); the middle part of the first winding ring (22) and the middle part of the second winding ring (32) are hook-shaped; the inside of the first tightening plate (21) is provided with an embedded groove; the shape of the second tightening plate (31) is matched with the shape of the embedded groove.

2. The automatic precast pier column stacking device according to claim 1, characterized in that: A column-shaped groove (4) is arranged below the first winding ring (22); a penetrating rod (5) is fixedly connected below the first winding ring (22); the shape of the penetrating rod (5) is matched with the shape of the column-shaped groove (4).

3. The automatic precast pier column stacking device according to claim 2, wherein: An annular plate (6) is fixedly connected above the first winding ring (22); a penetrating column (7) is fixedly connected above the first winding ring (22); the shape of the penetrating column (7) is arc-shaped; a penetrating groove (8) is arranged on the surface of the annular plate (6); the shape of the penetrating groove (8) is matched with the shape of the penetrating column (7).

4. The automatic precast pier column stacking device according to claim 3, wherein: A conical tooth (9) is fixedly connected to the inner wall of the penetrating groove (8); a plurality of conical teeth (9) are arranged in an annular array on the inner wall of the penetrating groove (8); a tooth (10) is fixedly connected to the upper and lower sides of the penetrating column (7); the shape of the tooth (10) is matched with the shape of the conical tooth (9).

5. The automatic precast pier column stacking device according to claim 3, wherein: An inclined clasp (11) is rotatably connected to one side of the second tightening plate (31); the number of the inclined clasp (11) on the surface of a single second tightening plate (31) is two, and they are symmetrically arranged; a limiting clasp (12) is mounted in the inside of the first tightening plate (21); the number of the limiting clasp (12) in the inside of a single first tightening plate (21) is two, and they are symmetrically arranged; the inclined clasp (11) and the limiting clasp (12) are arranged one by one.

6. The automatic precast pier column stacking device according to claim 5, wherein: An extension column (13) is fixedly connected to the side surface of the inclined clasp (11); an extension spring (14) is sleeved on the outer surface of the extension column (13); the extension column (13) and the extension spring (14) are connected to the surface of the second tightening plate (31) away from the inclined clasp (11).

7. The automatic precast pier column stacking device of claim 5, wherein: A telescopic limiting rod (15) is fixedly connected to the surface of the limiting clasp (12); a limiting spring (16) is sleeved on the outer surface of the telescopic limiting rod (15); the telescopic limiting rod (15) and the limiting spring (16) are connected to the inner wall of the first tightening plate (21) away from the limiting clasp (12).

8. The automatic precast pier column stacking device of claim 5, wherein: The inner walls of the limiting clasp (12) and the inclined clasp (11) are fixedly connected with inclined teeth (17); a plurality of inclined teeth (17) are arranged in an annular array on the inner walls of the limiting clasp (12) and the inclined clasp (11).

9. The precast pier automatic stacking device of claim 8, wherein: The inner part of the first winding ring (22) and the inner part of the second winding ring (32) are slidably connected with a clamping plate (18); the inner wall of the first winding ring (22) and the second winding ring (32) is provided with a limiting groove matched with the clamping plate (18).

10. The precast pier automatic stacking device of claim 9, wherein: One side of the clamping plate (18) is fixedly connected with a vertical rod (19); the two ends of the vertical rod (19) are respectively in contact with the inner wall of the winding ring, and are slidably connected in the inner part of the winding ring.

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