A connecting structure of a concrete precast member

Abstract

The utility model relates to the technical field of building construction discloses a connecting structure of concrete prefabricated component, including threaded rod, right half round block, left half round block, the outer wall rear left side of right half round block is fixedly connected with the clamping block no.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a connection structure for precast concrete components. Background Technology

[0002] Currently, prestressed concrete precast components are widely used in construction engineering, especially in the construction of modern high-rise buildings and bridges. These precast components are assembled on the construction site using various connection methods to achieve the safety and stability of the overall structure. Traditional methods mainly include welding, bolting, and embedded anchoring, but these methods often have problems such as complex construction, high cost, and difficulty in guaranteeing quality. In recent years, with the development of new materials and technologies, self-locking fasteners and friction connector connection technologies have been gradually applied to practical engineering. These new technologies have improved construction efficiency and connection reliability to a certain extent, but there is still much room for improvement.

[0003] A search revealed Chinese patent publication number CN222295331U, which discloses a connection structure for precast UHPC concrete components. The structure includes a first component and a second component, with a connection mechanism between them. The connection mechanism includes a slot, a plug, and an mounting groove. The slot is located on the left side of the second component, and the plug is fixedly connected to the right side of the first component, inserted into the slot. Both the slot and the plug are L-shaped, and there are three sets of each, evenly spaced. This invention connects the first and second components by inserting the plug into the slot and hooking it onto the second component. A screw and a nut are connected, and the plug is fixed by the nut and a limiting plate, thus connecting the first and second components. Installation and disassembly are convenient. However, this device cannot effectively distribute and transmit external pressure between the first and second components, and the entire connection fails when some plugs fail, lacking deformation coordination capabilities. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a connection structure for precast concrete components, aiming to improve the problems of the connector's inability to distribute external pressure and the transmission of block failure in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a connection structure for a precast concrete component, comprising a threaded rod, a right semicircular block, and a left semicircular block. A locking block 1 is fixedly connected to the left rear part of the outer wall of the right semicircular block, and a locking groove 1 is opened on the right rear part of the outer wall of the left semicircular block. The locking block 1 and the locking groove 1 engage with each other. A locking block 2 is fixedly connected to the right front part of the outer wall of the left semicircular block, and a locking groove 2 is opened on the left front part of the outer wall of the right semicircular block. The locking block 2 and the locking groove 2 engage with each other. A handle is rotatably connected to the top of the threaded rod, a washer is slidably connected to the top of the outer wall of the threaded rod, and a cylindrical block is threadedly connected to the bottom of the threaded rod. A connecting block 1 is fixedly connected to the front top of the cylindrical block, and a connecting block 2 is fixedly connected to the rear top of the cylindrical block. Anti-loosening mechanisms are provided on both the front and rear sides of the outer wall of the right semicircular block.

[0006] The above technical solution involves embedding one locking block into slot one and another locking block into slot two, allowing the right and left semicircular blocks to form a circular connector. The circular connector is then initially connected to the two connecting blocks using a tenon and mortise joint. At this point, connecting blocks one and two are horizontally locked by the circular connector. Next, a threaded rod is inserted into the cylindrical groove formed by the right and left semicircular blocks. Rotating the handle allows the bottom of the threaded rod to connect with the cylindrical block. At this point, the cylindrical block and the circular connector complete the initial clamping of connecting blocks one and two. Pressing the handle downwards further utilizes the bottom semicircular piece to compress the gasket, making the connection between the circular connector and the connecting block tighter. This allows the circular connector and the cylindrical block to jointly clamp connecting blocks one and two. Connecting blocks one and two are also fixed vertically. Furthermore, the locking blocks and slots increase the connection area between the right and left semicircular blocks. The redundant design of the two semicircular blocks also increases the ability to transmit dispersed forces and enhances adaptability and deformation coordination.

[0007] As a further description of the above technical solution:

[0008] The anti-loosening mechanism includes a housing, the rear side of which is fixedly connected to the front and rear sides of the outer wall of the right semicircular block. A spring is fixedly connected to the bottom of the inner wall of the housing, and a slider is fixedly connected to the other end of the spring. A locking block is fixedly connected to the front side of the slider. A housing cap is fixedly connected to both the front and rear sides of the outer wall of the left semicircular block. A rotating plate is rotatably connected to the front side of the inner wall of the housing, and a pressing block is slidably connected to the left side of the front part of the housing.

[0009] Through the above technical solution: when splicing the right and left semicircular blocks, the outer shell and shell cap that are closely connected to them will gradually approach each other. The shell cap squeezes the pressing block, and the pressing block is displaced by the force, which pushes the rotating plate to rotate around its rotation axis. After the rotating plate rotates, the original restrictive structure on the locking block changes and no longer restricts the locking block. At this time, the spring in the compressed state begins to play its role. Using its own elastic potential energy, it pushes the slider to pop out. After the slider pops out, it quickly rushes towards the shell cap and precisely and tightly locks into the inner wall of the shell cap, restricting the swaying of the right and left semicircular blocks in the front and back directions. The spring clamping device applies pressure to prevent the circular connector from loosening due to external vibration factors.

[0010] As a further description of the above technical solution:

[0011] Multiple locking blocks are fixedly connected to the inner walls of both connecting block one and connecting block two. Multiple locking slots are opened on the outer walls of both the right semicircular block and the left semicircular block. The locking blocks are engaged with the locking slots.

[0012] The above technical solution allows for the following: when the circular connector composed of the right and left semicircular blocks is placed on the inner walls of connector block one and connector block two, the locking block three and the locking groove three engage with each other to prevent the circular connector from rotating after placement and ensure its stable position.

[0013] As a further description of the above technical solution:

[0014] Multiple slots are provided at the bottom of the inner walls of both connecting block one and connecting block two. Multiple magnetic pins are slidably connected to the top of both the right semicircular block and the left semicircular block, and the magnetic pins are engaged with the slots.

[0015] Through the above technical solution: under the action of magnetic force, the magnetic pin and slot one guide the magnetic pin to pass smoothly through the pre-opened circular holes on the top of the right semicircular block and the left semicircular block, and then firmly connect with slot one on the front and rear connecting block one and connecting block two, tightly combining the circular connecting body with connecting block one and connecting block two.

[0016] As a further description of the above technical solution:

[0017] A hexagonal piece is fixedly connected to the bottom of the inner wall of the connecting block 1, and the hexagonal piece is slidably connected to the threaded rod.

[0018] The above technical solution uses two clamps, a gasket and a hexagonal plate, to hold the components. These two clamps apply pressure from both sides, firmly fixing the right and left semicircular blocks in the entire connection structure. This enhances the stability and reliability of the entire connection system, ensuring stable operation under various working conditions and effectively preventing connection failures caused by loose components.

[0019] As a further description of the above technical solution:

[0020] The top of the first connecting block is provided with a second slot, and a convenient sacrificial electrode rod is provided on the top of the first connecting block. The convenient sacrificial electrode rod is engaged with the second slot.

[0021] Through the above technical solution: a convenient sacrificial electrode rod can be inserted into slot 2. The outer wall of the convenient sacrificial electrode rod is provided with an elastic metal sacrificial electrode. When the convenient sacrificial electrode rod is inserted into slot 2, the elastic metal sacrificial electrode will deform and fit tightly into slot 2. At the same time, it makes it relatively easy to remove the convenient sacrificial electrode rod from slot 2 when it needs to be replaced. The main function of the convenient sacrificial electrode rod is to protect the circular connector. Through its own electrochemical action, it makes corrosion occur preferentially on itself, thereby effectively preventing the circular connector from being corroded and extending the service life of the entire structure.

[0022] As a further description of the above technical solution:

[0023] The top of the right semicircular block is fixedly connected to a concave groove, and a fluorescent marking plate is slidably connected to the inner wall of the concave groove.

[0024] With the above technical solution, workers can use it to mark the corresponding section numbers on the wall during nighttime operations. The marks are clearly visible even in the dark, facilitating nighttime observation and recording, and providing convenience for construction and maintenance.

[0025] As a further description of the above technical solution:

[0026] A stress dispersion plate is fixedly connected to the right rear part of the first connecting block, and a stress dispersion plate is fixedly connected to the left rear part of the first connecting block.

[0027] Through the above technical solution: connecting block one and connecting block two are fixedly connected with stress dispersion plate one and stress dispersion plate two. When the entire connection structure is subjected to external force, the connection part will be subjected to stress. Stress dispersion plate one and stress dispersion plate two can evenly disperse these stresses, avoid stress concentration in a certain local area, thereby effectively preventing stress concentration from damaging the connection structure, enhancing the stability and reliability of the entire connection structure, and ensuring its normal operation under various complex working conditions.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, by engaging the first locking block and the first locking slot, and engaging the second locking block and the second locking slot, the right semicircular gasket and the left semicircular gasket form a circular connecting body. This circular connecting body is initially connected to the first connecting block and the second connecting block through tenon and mortise. Then, a threaded rod is inserted, and the handle is rotated to make the threaded rod threadedly connected to the cylindrical block. Then, the handle is rotated downward to apply pressure with the gasket, so as to achieve tight clamping of the components. Through redundant design and increased contact area, the force transmission is dispersed, and the adaptability and deformation coordination ability are enhanced.

[0030] 2. In this utility model, the outer shell and the cap approach each other, the cap squeezes the pressing block, the pressing block moves downward under force, and pushes the rotating plate to rotate around the fixed axis. After the rotating plate rotates, it no longer restricts the locking block. At this time, the compressed and stored spring pushes the slider out with its elastic potential energy. The slider is tightly locked with the inner wall of the cap, thereby restricting the swaying of the right and left semicircular blocks in the front and back directions, ensuring that the overall structure is stable in this direction after splicing, and avoiding swaying that affects the tightness of the connection. Attached Figure Description

[0031] Figure 1 This is a perspective view of a connection structure for a precast concrete component proposed in this utility model.

[0032] Figure 2 This is a top view of a connection structure for a precast concrete component proposed in this utility model.

[0033] Figure 3 This is an exploded view of the connection structure of a precast concrete component proposed in this utility model;

[0034] Figure 4 This is a split view of the threaded rod of the connection structure of a precast concrete component proposed in this utility model.

[0035] Figure 5 This is a cross-sectional view of an anti-loosening mechanism for the connection structure of a precast concrete component proposed in this utility model.

[0036] Legend:

[0037] 1. Threaded rod; 2. Anti-loosening mechanism; 201. Housing; 202. Spring; 203. Slider; 204. Pressing block; 205. Rotating plate; 206. Locking block; 207. Housing cap; 3. Right semicircular block; 4. Left semicircular block; 5. Locking block one; 6. Locking slot one; 7. Locking block two; 8. Locking slot two; 9. Washer; 10. Handle; 11. Cylindrical block; 12. Connecting block one; 13. Connecting block two; 14. Locking block three; 15. Locking slot three; 16. Slot one; 17. Magnetic pin; 18. Hexagonal piece; 19. Slot two; 20. Convenient sacrificial electrode rod; 21. Concave groove; 22. Fluorescent marking plate; 23. Stress dispersion plate one; 24. Stress dispersion plate two. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a connection structure for a precast concrete component, including a threaded rod 1, a right semicircular block 3, and a left semicircular block 4. The threaded rod 1 is used to control the downward clamping of the gasket 9. The right semicircular block 3 and the left semicircular block 4 are two semicircular iron pieces used to connect connecting block 12 and connecting block 23 through the mortise and tenon joints of the right semicircular block 3 and the left semicircular block 4. A locking block 15 is fixedly connected to the left rear part of the outer wall of the right semicircular block 3. The locking block 15 and the locking block 27 are used to increase the contact area. A locking groove 16 is opened on the right rear part of the outer wall of the left semicircular block 4. The groove of the locking groove 16 engages with the locking block 15. The locking block 15 and the locking groove 16 engage. A locking block 27 is fixedly connected to the right front part of the outer wall of the left semicircular block 4. A locking groove 28 is opened on the left front part of the outer wall of the right semicircular block 3. The groove of the locking groove 28 engages with the locking block 27. The locking block 27 and the locking groove 28 engage. The threaded rod 1 is rotatably connected to the top of the threaded rod 1. The handle 10 has semi-circular clips on both sides of the connecting end of the handle 10. Rotating the handle 10 causes the pad 9 to initially press against the right semi-circular block 3 and the left semi-circular block 4. The pad 9 is slidably connected to the top of the outer wall of the threaded rod 1. The pad 9 is pressed, causing the right semi-circular block 3 and the left semi-circular block 4 to press against the connecting block 12 and the connecting block 23. The bottom of the threaded rod 1 is threadedly connected to the cylindrical block 11. The circular connecting body formed by the cylindrical block 11, the right semi-circular block 3 and the left semi-circular block 4 clamps the connecting block 12 and the connecting block 23. The top front side of the cylindrical block 11 is fixedly connected to the connecting block 12, and the top rear side of the cylindrical block 11 is fixedly connected to the connecting block 23. The connecting block 12 and the connecting block 23 are precast concrete walls with circular grooves on both sides. The front and rear sides of the outer wall of the right semi-circular block 3 are provided with anti-loosening mechanisms 2.

[0040] Specifically, the first locking block 5 is engaged with the first locking slot 6, and the second locking block 7 is engaged with the second locking slot 8, so that the right semicircular block 3 and the left semicircular block 4 form a circular connecting body. The circular connecting body is initially connected to the first connecting block 12 and the second connecting block 13 through tenon and mortise. The threaded rod 1 is inserted into the cylindrical groove formed by the right semicircular block 3 and the left semicircular block 4. The handle 10 is rotated, and the bottom end of the threaded rod 1 is threadedly connected to the cylindrical block 11. Then the handle 10 is pressed down, and the semicircular piece at the bottom of the handle presses the pad 9 to make the circular connecting body more tightly connected to the first connecting block 12 and the second connecting block 13, so that the circular connecting body and the cylindrical block 11 together clamp the first connecting block 12 and the second connecting block 13.

[0041] Reference Figure 2 and Figure 5 The anti-loosening mechanism 2 includes a housing 201. The rear side of the housing 201 is fixedly connected to the front and rear sides of the outer wall of the right semicircular block 3. The housing 201 facilitates the sliding of the slider 203. A spring 202 is fixedly connected to the bottom of the inner wall of the housing 201. The spring 202 is initially in a compressed state. The other end of the spring 202 is fixedly connected to the slider 203. The slider 203 slides and engages with the inner wall of the housing cap 207. A locking block 206 is fixedly connected to the front side of the slider 203. The locking block 206 is used to hold the rotating plate 205. When the rotating plate 205 rotates, the slider 203 is engaged with the inner wall of the housing cap 207. Block 203 pops out under the action of spring 202. The outer wall of the left semicircular block 4 is fixedly connected to the front and rear sides of the shell cap 207. The shell cap 207 engages with the slider 203 to reduce the swaying of the right semicircular block 3 and the left semicircular block 4 in the front and rear directions. The inner wall of the outer shell 201 is rotatably connected to the front side of the inner wall of the outer shell 201. The rotating plate 205 is used to control whether the slider 203 pops out. The front left side of the outer shell 201 is slidably connected to the pressing block 204. When the outer shell 201 and the shell cap 207 are close, the shell cap 207 presses the pressing block 204 to the right.

[0042] Specifically, when the right semicircular block 3 and the left semicircular block 4 are spliced ​​together, the outer shell 201 and the shell cap 207 are close together, pressing the pressing block 204. The pressing block 204 causes the rotating plate 205 to rotate. The rotation of the rotating plate 205 no longer restricts the locking block 206, causing the slider 203 to pop out under the action of the spring 202. The slider 203 pops out and locks into the inner wall of the shell cap 207, thereby restricting the swaying of the right semicircular block 3 and the left semicircular block 4 in the front and back directions.

[0043] Reference Figure 3 and Figure 4Multiple locking blocks 14 are fixedly connected to the inner walls of both connecting block 12 and connecting block 23. Locking blocks 14 are located on the inner wall of the cylindrical groove formed by connecting block 12 and connecting block 23. Multiple locking slots 15 are provided on the outer walls of both the right semicircular block 3 and the left semicircular block 4. The locking slots 15 are evenly distributed on the outer wall of the circular connecting body formed by the right semicircular block 3 and the left semicircular block 4. Locking blocks 14 engage with the locking slots 15. Multiple slots are provided at the bottom of the inner walls of both connecting block 12 and connecting block 23. Slot 16 has a magnetic bottom. Multiple magnetic pins 17 are slidably connected to the top of the right semicircular block 3 and the left semicircular block 4. The bottom of the magnetic pins 17 is also magnetic. The magnetic pins 17 are engaged with slot 16. The magnetic pins 17 pass through the right semicircular block 3 and the left semicircular block 4 and engage with slot 6. A hexagonal piece 18 is fixedly connected to the bottom of the inner wall of the connecting block 12. The hexagonal piece 18 and the washer 9 initially clamp the right semicircular block 3 and the left semicircular block 4. The hexagonal piece 18 is slidably connected to the threaded rod 1.

[0044] Specifically, when the circular connector composed of right semicircular block 3 and left semicircular block 4 is placed into the inner wall of connector block 12 and connector block 23, it is engaged by latch block 314 and latch slot 315 to prevent the circular connector from rotating. Magnetic pin 17 and slot 16 are guided by magnetic force through the circular holes opened at the top of right semicircular block 3 and left semicircular block 4 to connect connector block 12 and connector block 213 in the front-to-back direction. Right semicircular block 3 and left semicircular block 4 are clamped by two clamping pieces, gasket 9 and hexagonal piece 18.

[0045] Reference Figure 2 , Figure 3 and Figure 4 The top of the connecting block 12 is provided with a slot 2 19 for storing the sacrificial electrode. The top of the connecting block 12 is provided with a convenient sacrificial electrode rod 20. The outer wall of the convenient sacrificial electrode rod 20 is made of elastic metal, which is easy to replace. The convenient sacrificial electrode rod 20 is engaged with the slot 2 19. The top of the right semicircular block 3 is fixedly connected with a concave groove 21. The inner wall of the concave groove 21 is provided with a slot. The inner wall of the concave groove 21 is slidably connected with a fluorescent marking plate 22. The fluorescent marking plate 22 is a replaceable fluorescent marking block, which is convenient for marking the corresponding node number of the wall at night. The rear right side of the connecting block 12 is fixedly connected with a stress dispersion plate 1 23, and the rear left side of the connecting block 12 is fixedly connected with a stress dispersion plate 24. The stress dispersion plate 1 23 and the stress dispersion plate 24 are convenient for evenly dispersing the stress at the connection part of the connecting block 12 and the connecting block 2 13.

[0046] Specifically, slot 2 19 can be inserted into a convenient sacrificial electrode rod 20. The outer wall of the convenient sacrificial electrode rod 20 has a right elastic metal sacrificial electrode, which makes the convenient sacrificial electrode rod 20 fit tightly with slot 2 19. At the same time, it makes the convenient sacrificial electrode rod 20 easy to replace. The convenient sacrificial electrode rod 20 protects the circular connector from corrosion. In order to ensure that the right semicircular block 3 is structurally consistent with the left semicircular block 4 and to reduce uneven stress due to structural stress, a concave groove 21 is fixedly connected to the right semicircular block 3. A fluorescent marking plate 22 is slidably connected to the inner wall of the concave groove 21 for marking the corresponding section number points on the wall, which is convenient for nighttime observation and recording. The first connecting block 12 and the second connecting block 23 are directly fixedly connected to the first stress dispersion plate 23 and the second stress dispersion plate 24, which evenly disperse the stress on the connection part and avoid stress concentration that could damage the connection structure.

[0047] Working principle: Before using the device, firstly, engage the locking block 5 on the left side of the outer wall of the right semicircular block 3 with the locking slot 6, and simultaneously engage the locking block 7 on the right side of the outer wall of the left semicircular block 4 with the locking slot 8, so that the right semicircular block 3 and the left semicircular block 4 form a circular connecting body. Then, this circular connecting body is initially connected to the connecting block 12 and the connecting block 13 through tenons and mortise joints. Next, insert the threaded rod 1 into the cylindrical groove formed by the right semicircular block 3 and the left semicircular block 4, and rotate the handle 10 to make the threaded rod... The bottom end is threaded to the cylindrical block 11, making the circular connector more tightly connected to the first connector 12 and the second connector 13. Then, turn the handle 10 downwards, and its bottom semicircular piece will press the pad 9. The pad 9 applies downward pressure to the circular connector, so that the circular connector and the cylindrical block 11 together firmly clamp the first connector 12 and the second connector 13. Through the increased contact area of ​​the right semicircular block 3 and the left semicircular block 4 and the redundant design, the advantages of dispersing the transmission force and the stronger adaptability and deformation coordination ability are achieved.

[0048] Furthermore, when the outer shell 201 and the cap 207 are spliced ​​together, they approach each other. The cap 207 applies pressure to the pressing block 204. The pressing block 204 is displaced by the force and pushes the rotating plate 205 to rotate around its fixed axis. After the rotating plate 205 rotates, the restrictive structure of the locking block 206 changes and no longer restricts the locking block 206. At this time, the spring 202, which is in a compressed and stored energy state, pushes the slider 203 to pop out quickly with its elastic potential energy. The popped slider 203 rushes towards the cap 207 and tightly engages with the inner wall of the cap 207, restricting the swaying of the right semicircular block 3 and the left semicircular block 4 in the front and back direction. This ensures the stability of the overall structure in this direction after splicing and avoids the swaying affecting the tightness of the connection.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connection structure for a precast concrete component, comprising a threaded rod (1), a right semicircular block (3), and a left semicircular block (4), characterized in that: A locking block 1 (5) is fixedly connected to the left rear part of the outer wall of the right semicircular block (3). A locking groove 1 (6) is opened on the right rear part of the outer wall of the left semicircular block (4). The locking block 1 (5) and the locking groove 1 (6) are engaged. A locking block 2 (7) is fixedly connected to the right front part of the outer wall of the left semicircular block (4). A locking groove 2 (8) is opened on the left front part of the outer wall of the right semicircular block (3). The locking block 2 (7) and the locking groove 2 (8) are engaged. A handle (10) is rotatably connected to the top of the threaded rod (1). A washer (9) is slidably connected to the top of the outer wall of the threaded rod (1). A cylindrical block (11) is threadedly connected to the bottom of the threaded rod (1). A connecting block 1 (12) is fixedly connected to the front top of the cylindrical block (11). A connecting block 2 (13) is fixedly connected to the rear top of the cylindrical block (11). Anti-loosening mechanisms (2) are provided on both the front and rear sides of the outer wall of the right semicircular block (3).

2. The connection structure of a precast concrete component according to claim 1, characterized in that: The anti-loosening mechanism (2) includes a housing (201), the rear side of which is fixedly connected to the front and rear sides of the outer wall of the right semicircular block (3), a spring (202) is fixedly connected to the bottom of the inner wall of the housing (201), a slider (203) is fixedly connected to the other end of the spring (202), a locking block (206) is fixedly connected to the front side of the slider (203), a cap (207) is fixedly connected to the front and rear sides of the outer wall of the left semicircular block (4), a rotating plate (205) is rotatably connected to the front side of the inner wall of the housing (201), and a pressing block (204) is slidably connected to the left side of the front part of the housing (201).

3. The connection structure of a precast concrete component according to claim 1, characterized in that: Multiple locking blocks (14) are fixedly connected to the inner walls of the connecting block 1 (12) and the connecting block 2 (13). Multiple locking slots (15) are opened on the outer walls of the right semicircular block (3) and the left semicircular block (4). The locking blocks (14) engage with the locking slots (15).

4. The connection structure of a precast concrete component according to claim 1, characterized in that: Multiple slots (16) are provided at the bottom of the inner walls of the connecting block 1 (12) and the connecting block 2 (13). Multiple magnetic pins (17) are slidably connected to the top of the right semicircular block (3) and the left semicircular block (4). The magnetic pins (17) are engaged with the slots (16).

5. The connection structure of a precast concrete component according to claim 1, characterized in that: A hexagonal piece (18) is fixedly connected to the bottom of the inner wall of the connecting block (12), and the hexagonal piece (18) is slidably connected to the threaded rod (1).

6. The connection structure of a precast concrete component according to claim 1, characterized in that: The top of the first connecting block (12) is provided with a second slot (19), and a convenient sacrificial electrode rod (20) is provided on the top of the first connecting block (12). The convenient sacrificial electrode rod (20) engages with the second slot (19).

7. The connection structure of a precast concrete component according to claim 1, characterized in that: The top of the right semicircular block (3) is fixedly connected to a concave groove (21), and the inner wall of the concave groove (21) is slidably connected to a fluorescent marking plate (22).

8. The connection structure of a precast concrete component according to claim 1, characterized in that: A stress dispersion plate 1 (23) is fixedly connected to the rear right side of the connecting block 1 (12), and a stress dispersion plate 2 (24) is fixedly connected to the rear left side of the connecting block 1 (12).

Images