A connecting device between concrete members and a method for installing the same

Abstract

The application relates to a connecting device between concrete members and a mounting method thereof, wherein the connecting device comprises a first connecting body, a positioning body and a second connecting body; the first connecting body comprises a first connecting sleeve and a first connecting rod, and the first connecting rod is arranged in the first connecting sleeve; the first connecting sleeve and the first connecting rod are threadedly connected; the positioning body comprises a positioning sleeve, and a channel is arranged in the positioning sleeve; the second connecting body comprises a second connecting sleeve and a second connecting rod, and the second connecting rod is arranged in the second connecting sleeve; the first connecting rod enters the positioning sleeve from one side of the channel, the second connecting rod enters the positioning sleeve from the other side of the channel, and the first connecting body is connected to the second connecting body through the positioning body to form a connecting piece. The application cancels the hand holes reserved for multiple fastening bolts on the concrete monomer, improves the component strength, prevents stress concentration in the installation and use processes, and is quick to install.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a connection device between individual concrete components and its installation method. Background Technology

[0002] In the construction fields of immersed tunnels, underground utility tunnels, prefabricated buildings, and subway shield tunnel segments, concrete components need to be divided into several concrete units, which are then manufactured in a prefabrication factory and transported to the construction site. Adjacent concrete units are then connected together with connecting bolts to form a complete cross-sectional shape and extend to the corresponding length.

[0003] However, in order to allow bolts to pass through the precast concrete unit (using existing shield tunnel segment connections as an example), multiple handholes for locking bolts need to be pre-drilled in the concrete unit (e.g., Figure 2 and Figure 3 When operators use a wrench to tighten the handhole at the bolt and the connecting hole through the bolt, this not only weakens the strength of the concrete component, but also causes local stress at the point where the inner wall of the handhole is in contact with the locking bolt, resulting in cracking and other damage at the handhole of the concrete unit, affecting the service life of the concrete and creating safety hazards for the building.

[0004] Furthermore, during installation, two adjacent concrete units need to be positioned, and then the curved bolts (such as...) need to be manually tightened. Figure 1 The existing tunnel segment connector shown enters through the handhole of the first concrete component and exits through the corresponding handhole of the second concrete component. Due to the small gap between the bolt and the reserved hole, coupled with the curvature tolerance of the arc bolt, especially when the positions of the two concrete components are significantly different, it takes a long time to complete one connection point. It also wastes a lot of time to complete the installation of multiple connection points in a tunnel. At the same time, it causes stress concentration between the bolt and the inner wall of the reserved concrete hole. Since the handhole is relatively weak, it causes damage to the concrete. Subsequently, it is necessary to reinforce the entire section with steel plates, which is very costly.

[0005] In addition, bolts exposed outside the concrete require multiple anti-corrosion treatments during their service life.

[0006] In summary, the shortcomings of existing connectors between individual concrete components are as follows: (1) They need to be done manually during use, requiring repeated hammering, resulting in low automation, high labor intensity, and low efficiency; (2) The setting of handholes weakens the cross section, making it easy to be damaged at weak points and reducing the performance of the segments; (3) The bolts and the reserved holes of the individual concrete components cause local stress concentration, resulting in damage to the individual components, and the reserved holes of the individual concrete components cause defects such as water leakage; (4) The cost of later repair / maintenance is high. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention discloses a connection device between individual concrete components and its installation method.

[0008] The technical solution adopted in this invention is as follows:

[0009] A connection device between individual concrete components, comprising:

[0010] The first connecting body includes a first connecting sleeve and a first connecting rod, wherein the first connecting rod is disposed inside the first connecting sleeve; wherein the first connecting sleeve and the first connecting rod are threadedly connected.

[0011] A positioning body includes a positioning sleeve, wherein the positioning sleeve has a channel inside;

[0012] The second connecting body includes a second connecting sleeve and a second connecting rod, wherein the second connecting rod is disposed inside the second connecting sleeve;

[0013] The first connecting rod enters the positioning sleeve from one side of the channel, and the second connecting rod enters the positioning sleeve from the other side of the channel. The first connecting body is connected to the positioning body and the second connecting body to form a connector.

[0014] Its further technical feature is that: a sealing material is filled between the first connecting sleeve and the first connecting rod, between the second connecting sleeve and the second connecting rod, between the first connecting rod and the positioning body, between the second connecting rod and the positioning body, and between the positioning body and the concrete.

[0015] A connection device between individual concrete components, comprising:

[0016] The first connecting body includes a first connecting sleeve and a first connecting rod, wherein the first connecting rod is disposed inside the first connecting sleeve; wherein the first connecting sleeve and the first connecting rod are threadedly connected.

[0017] A positioning body includes a positioning sleeve, wherein the positioning sleeve has a channel inside;

[0018] The second connector includes a second connecting rod, and the outer surface of the second connecting rod is provided with an anchor rod that is directly embedded in the concrete.

[0019] The first connecting rod enters the positioning sleeve from one side of the channel, and the second connecting rod enters the positioning sleeve from the other side of the channel. The first connecting body is connected to the positioning body and the second connecting body to form a connector.

[0020] Its further technical features are as follows: one side of the first connecting sleeve is closed, and the other side of the first connecting sleeve is open. A first boss is provided at the opening, and a groove is opened in the first boss; the first connecting body also includes an adjusting nut, at least one adjusting washer and a locking nut. The adjusting nut and the locking nut lock the first connecting rod on the channel of the positioning sleeve. When the adjusting nut is compressed, the adjusting nut is squeezed into the groove.

[0021] A further technical feature is that: both the adjusting nut and the adjusting washer have protrusions along the axial direction of the first connecting body, and the protrusions of the adjusting nut and the adjusting washer are opposite to each other.

[0022] Its further technical features are as follows: the first connecting rod includes a mandrel, the surface of which is provided with grooves or bosses; the outer surface of the mandrel is covered with a surface layer, and the outer surface of the surface layer and the inner surface of the first connecting sleeve are threaded together.

[0023] A further technical feature is that the positioning body also includes a positioning nut, which is threadedly connected to the other side of the channel, and the positioning nut locks the second connecting rod.

[0024] Its further technical feature is that the second connecting rod and the positioning nut are integrated.

[0025] A method for installing individual concrete components, using the connection device for connecting individual concrete components as described above, includes the following steps:

[0026] The first connecting sleeve of the first connector is pre-embedded at a designated end face position of the first concrete component, and the second connecting sleeve of the second connector is pre-embedded at a designated end face position of the second concrete component.

[0027] After inserting the adjusting nut into the designated position of the first connecting rod, insert it into the channel of the positioning body, install the adjusting washer and the locking nut, and lock the end of the first connecting rod into the positioning body; screw the end of the second connecting rod into the positioning nut and lock it onto the inner thread of the positioning body, so that the first connecting rod, the positioning body and the second connecting rod form a whole; or, after inserting the adjusting nut into the designated position of the first connecting rod, insert it into the channel of the positioning body, install the adjusting washer and the locking nut, and lock the end of the first connecting rod into the positioning body to form a whole.

[0028] The first connecting rod, the positioning body and the second connecting rod, which are formed as a whole, are screwed into the second connecting sleeve on the second concrete component unit;

[0029] Move the second concrete component unit and press the first connecting rod into the first connecting sleeve on the first concrete component unit, so that the first concrete component unit and the first connecting sleeve are threaded and locked together. At this time, the first concrete component unit and the second concrete component unit are spliced ​​together.

[0030] Before pressing the first connecting rod into the first concrete component and the first connecting sleeve, a sealing substance is filled into the first connecting sleeve, the second connecting sleeve and the positioning body.

[0031] A method for installing individual concrete components, using the connecting device for connecting individual concrete components as described above, is characterized by comprising the following steps:

[0032] The first connecting sleeve of the first connector is pre-embedded at a designated end face position of the first concrete component, and the second connecting rod is directly pre-embedded in the second concrete component.

[0033] After inserting the adjusting nut into the designated position of the first connecting rod, insert it into the channel of the positioning body, install the adjusting washer and the locking nut, and lock the end of the first connecting rod into the positioning body to form an integral unit, or lock the end of the first connecting rod into the positioning body and then thread the positioning nut into the channel of the positioning body to form an integral unit;

[0034] Screw the positioning nut into the second connecting rod, and screw the positioning body with the first connecting rod into the positioning nut on the second connecting rod connected to the second concrete component; or screw the positioning nut of the first connecting rod and the positioning body, which are integrated into one piece, directly into the second connecting rod fixed to the second concrete component.

[0035] Move the second concrete component unit and press the first connecting rod into the first connecting sleeve on the first concrete component unit, so that the first concrete component unit and the first connecting sleeve are threaded and locked together. At this time, the first concrete component unit and the second concrete component unit are spliced ​​together.

[0036] Before pressing the first connecting rod into the first concrete component and the first connecting sleeve, a sealing substance is filled into the first connecting sleeve and the positioning body.

[0037] The technical solution of the present invention has the following advantages compared with the prior art:

[0038] 1. The connection device between concrete components described in this invention eliminates the need for multiple pre-drilled locking bolt handholes on the concrete components, thereby improving component strength, reducing subsequent damage and maintenance costs, preventing stress concentration during installation and use, and enabling quick installation.

[0039] 2. When two concrete components are connected, the connecting device between the concrete components described in this invention is sealed inside the component, eliminating the need for subsequent maintenance and reducing maintenance costs; furthermore, the surfaces of the two connected concrete components are smooth and flat, facilitating subsequent equipment installation.

[0040] 3. The connection device between concrete components described in this invention eliminates the need for manual insertion of connecting bolts through two concrete components during installation, reducing labor intensity, improving installation efficiency, lowering installation costs, and facilitating automation.

[0041] 4. The connection device between individual concrete components described in this invention has a self-aligning function, which prevents stress concentration in individual concrete components during installation and use, and improves the service life of concrete components.

[0042] 5. The connection device between individual concrete components described in this invention can be widely used for connecting two or more concrete components such as subway shield tunnel segments, undersea immersed tunnels, prefabricated buildings and underground utility tunnels, and can also be used for connecting individual concrete components with steel structures and brick-concrete structures.

[0043] 6. This invention enables a longitudinal splicing connection between one concrete component and another, while simultaneously enabling a transverse convex-concave connection between the third concrete component and another, achieving dual positioning in all directions. Attached Figure Description

[0044] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0045] Figure 1 This is a schematic diagram of existing tunnel segment connectors.

[0046] Figure 2 This is a schematic diagram of the first working state of existing shield tunnel segment connection.

[0047] Figure 3 This is a schematic diagram of the second working state of existing shield tunnel segment connections.

[0048] Figure 4 This is a schematic diagram of the connection device between individual concrete components in this invention.

[0049] Figure 5 yes Figure 4 Enlarged diagram of point A in the middle.

[0050] Explanation of reference numerals in the accompanying drawings: 1. First concrete component; 2. First connector; 21. First connecting sleeve; 22. First connecting rod; 221. Mandrel; 222. Surface layer; 23. Adjusting nut; 24. First washer; 25. Second washer; 26. Locking nut; 3. Positioning body; 31. Positioning sleeve; 32. Positioning nut; 4. Second connector; 41. Second connecting rod; 42. Second connecting sleeve; 5. Second concrete component. Detailed Implementation

[0051] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0052] The foregoing and other technical contents, features, and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front, or back, are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the present invention. Furthermore, in all embodiments, the same reference numerals denote the same elements.

[0053] Example 1:

[0054] Combination Figure 4 and Figure 5 A connection device between individual concrete components, comprising:

[0055] The first connecting body 2 includes a first connecting sleeve 21 and a first connecting rod 22, wherein the first connecting rod 22 is disposed inside the first connecting sleeve 21; wherein the first connecting sleeve 21 and the first connecting rod 22 are threadedly connected.

[0056] The positioning body 3 includes a positioning sleeve 31, and the positioning sleeve 31 has a channel inside;

[0057] The second connecting body 4 includes a second connecting sleeve 42 and a second connecting rod 41, with the second connecting rod 41 disposed inside the second connecting sleeve 42;

[0058] The first connecting rod 22 enters the positioning sleeve 31 from one side of the channel, and the second connecting rod 41 enters the positioning sleeve 31 from the other side of the channel. The first connecting body 2 is connected to the positioning body 3 and the second connecting body 4 to form a connector.

[0059] The above provides a connection device between concrete components, which solves the technical problems of connecting parts between concrete components, such as arc bolts, such as: (1) the use process requires manual operation, repeated hammering, low automation, high labor intensity, and low efficiency; (2) the setting of hand holes leads to cross-section weakening, which is easy to be damaged at weak points and reduces the performance of the segments; (3) the bolt and the reserved hole of the concrete component locally generate stress concentration, causing damage to the component, and the reserved hole of the concrete component causes defects such as water leakage; (4) the later repair / maintenance cost is high.

[0060] In this embodiment, since one side of the first connector 2 can be pre-embedded in the concrete component, in order to make the first connector 2 better reach the designated end face of the concrete component, the shape of the first connecting sleeve 21 is designed as a cylinder with one side closed and the other side open. Of course, the shape of the first connecting sleeve 21 can also be a cylinder with both sides open.

[0061] Optionally, a first boss is provided at the opening, and a groove is formed in the first boss; the first connecting body 2 also includes an adjusting nut 23, at least one adjusting washer and a locking nut 26. Optionally, the adjusting washer includes a first washer 24 and a second washer 25. The adjusting nut 23 and the locking nut 26 lock the first connecting rod 22 on the channel of the positioning sleeve 31. After the adjusting nut 23 is compressed, the adjusting nut 23 is squeezed into the groove.

[0062] The first washer 24 is a self-aligning washer, meaning that the first washer 24 has a protrusion along the axial direction of the first connecting body 2, and the adjusting nut 23 also has a protrusion along the axial direction of the first connecting body 2, with the protrusions of the adjusting nut 23 and the first washer 24 facing each other. The convexity of the adjusting nut 23 is the same as that of the first washer 24, and the convexity, i.e., the extension length, ranges from 2mm to 20mm. The second washer 25 is a spring washer, which reduces the contact area of ​​the connecting parts, reduces the pressure per unit area, protects the surface of the connecting parts from damage, and also prevents the adjusting nut 23 from loosening.

[0063] A longitudinal expansion and contraction gap is reserved between the slot and the adjusting nut 23. At least one step is set in the slot. After the adjusting nut 23 is squeezed, it enters the slot, and the protrusion of the adjusting nut 23 and the step in the slot are locked together to achieve the locking of the adjusting nut 23 squeezed into the slot.

[0064] During the process of the first connecting body 2 being under pressure, when the adjusting nut 23 and the first washer 24 come into contact, the protrusion of the adjusting nut 23 and the protrusion of the first washer 24 abut against each other, adjusting the first connecting body 2, so that the connecting device has a self-aligning function, preventing stress concentration in the concrete component during installation and use, and improving the service life of the concrete component.

[0065] The second washer 25 is a spring washer, which can prevent loosening and increase the preload.

[0066] In this embodiment, the first connecting rod 22 includes a spindle 221, the surface of which is provided with grooves or bosses; the outer surface of the spindle 221 is covered with a surface layer 222, and the outer surface of the surface layer 222 and the inner surface of the first connecting sleeve 21 are threadedly engaged.

[0067] Specifically, the mandrel 221 is a cylindrical steel rod, and the surface layer 222 is made of composite materials such as nylon, polyurethane, or polyimide. The length of the surface layer 222 accounts for 80%-95% of the total length of the mandrel 221, so 5%-20% of the length of the mandrel 221 is not covered by the surface layer 222.

[0068] The outer surface of the surface layer 222 is provided with multiple threads, and the inner surface of the first connecting sleeve 21 is provided with multiple threads. The threads of the surface layer 222 and the threads of the first connecting sleeve 21 are interlocked, and the threads of the first connecting sleeve 21 and the threads of the surface layer 222 are also interlocked. Of course, the outer surface of the mandrel 221 without the surface layer 222 may also be provided with threads.

[0069] Preferably, grooves or bosses are provided on the outer surface of the mandrel 221 with surface layer 222 to improve the composite strength between the first connecting sleeve 21 and the first connecting rod 22.

[0070] In this embodiment, the positioning sleeve 31 is cylindrical in shape. The positioning sleeve 31 can be open on both sides, open on one side and closed on the other side, or closed on both sides. When the positioning sleeve 31 is open on both sides, a connecting nut needs to be used at the opening to lock the ends of the first connecting rod 22 and the second connecting rod 41. When the positioning sleeve 31 is closed on both sides, a through hole adapted to the first connecting rod 22 and the second connecting rod 41 needs to be opened to allow the ends of the first connecting rod 22 and the second connecting rod 41 to enter the positioning sleeve 31.

[0071] The positioning sleeve 31 is described with one side open and the other side closed. The closed side has a through hole with rounded chamfers at both ends. The inner diameter of the through hole is 2mm-10mm larger than the diameter of the first connecting rod 22. That is, the diameter of the first connecting rod 22 is set as D, and the inner diameter of the through hole is d, d=D+[2,10。

[0072] The positioning body 3 also includes a positioning nut 32, which is threadedly connected to the positioning sleeve 31 on one side of the opening. That is, the inner surface of the opening side is threaded, and preferably the outer surface of the opening side is provided with a first locking part. The first locking part can be a bayonet or a hexagonal platform to facilitate wrench locking. The positioning nut 32 locks the second connecting rod 41.

[0073] One end of the positioning nut 32 is provided with a second locking part, which can be a locking platform for locking the wrench.

[0074] In this embodiment, the design principle is the same as that of the first connector 2. Since one side of the second connector 4 is embedded in the concrete component, in order to make the second connector 4 better reach the designated end face of the concrete component, the second connecting sleeve 42 is designed with one side closed and the other side open. The closed side of the second connecting sleeve 42 is provided with a third protrusion. The third protrusion is used to improve the gripping force between the second connecting sleeve 42 and the concrete component and the axial tensile force of the second connecting sleeve 42.

[0075] Preferably, the outer surface of the second connecting sleeve 42 or between it and the third boss is provided with reinforcing ribs to increase the strength of the bonding surface between the second connecting sleeve 42 and the concrete component.

[0076] In this embodiment, the outer surface of the second connecting rod 41 and the inner surface of the second connecting sleeve 42 are threadedly engaged. Specifically, the outer surface of the second connecting rod 41 is provided with multiple turns of thread, and the inner surface of the second connecting sleeve 42 is provided with multiple turns of thread. The threads of the second connecting rod 41 and the threads of the second connecting sleeve 42 are engaged with each other, thus achieving a threaded connection between the second connecting rod 41 and the second connecting sleeve 42.

[0077] In this embodiment, the first connecting sleeve 21 is made of one of nylon, polyurethane, or polyimide, and the second connecting sleeve 42 is made of steel or a composite material of steel and nylon, polyurethane, or polyimide. It can be seen that the materials of the first connecting sleeve 21 and the second connecting sleeve 42 are different. It should be noted that the materials of the first connecting sleeve 21 and the second connecting sleeve 42 are the same, but based on the actual working conditions, the materials of the first connecting sleeve 21 and the second connecting sleeve 42 are different. When a certain pressure is applied to the second concrete component 5, the second connecting sleeve 42 has a certain rigidity and can better transmit the pressure to the second connecting rod 41, pressing the end of the second connecting rod 41 into the positioning body 3, and at the same time pressing the positioning body 3 onto the end of the first connecting rod 22.

[0078] In this embodiment, a sealing material is filled between the first connecting sleeve 21 and the first connecting rod 22, and between the second connecting sleeve 42 and the second connecting rod 41. The sealing material can be sealant or other substances with sealing properties, which further effectively prevents the first connecting rod 22 and the second connecting rod 41 from being affected by water or other impurities that have seeped into the concrete, thus ensuring their service life.

[0079] A method for installing individual concrete components, utilizing the aforementioned connection device between individual concrete components, includes the following steps:

[0080] The first connecting sleeve 21 of the first connector 2 is pre-embedded at the designated end face position of the first concrete component 1, and the second connecting sleeve 42 of the second connector 4 is pre-embedded at the designated end face position of the second concrete component 5.

[0081] After inserting the adjusting nut 23 into the designated position of the first connecting rod 22, insert it into the channel of the positioning body 3, install the adjusting washer and the locking nut 26, and lock the end of the first connecting rod 22 into the positioning body 3; screw the end of the second connecting rod 41 into the positioning nut 32 and lock it onto the inner thread of the positioning body 3, so that the first connecting rod 22, the positioning body 3 and the second connecting rod 41 form a whole; or, after inserting the adjusting nut 23 into the designated position of the first connecting rod 22, insert it into the channel of the positioning body 3, install the adjusting washer and the locking nut 26, and lock the end of the first connecting rod 22 into the positioning body 3 to form a whole;

[0082] The first connecting rod 22, the positioning body 3 and the second connecting rod 41, which are formed as a whole, are screwed into the second connecting sleeve 42 on the second concrete component 5.

[0083] Move the second concrete component unit 5 and press the first connecting rod 22 into the first connecting sleeve 21 on the first concrete component unit 1, and engage with the first connecting sleeve 21 through the thread. At this time, the first concrete component unit 1 and the second concrete component unit 5 are spliced ​​together.

[0084] Before pressing the first connecting rod 22 into the first concrete component 1 and the first connecting sleeve 21, a sealing substance is filled into the first connecting sleeve 21, the second connecting sleeve 42 and the positioning body 3.

[0085] In the above, the connection surface of the first concrete component 1 and the connection surface of the second concrete component 5 are provided with a process groove corresponding to the positioning body 3. This process groove is not limited to... Figure 4 As shown in the figure, the process trough can be formed at the first concrete component 1, at the second concrete component 5, or between the first concrete component 1 and the second concrete component 5, as long as the size of the process trough can accommodate the positioning body 3.

[0086] Example 2:

[0087] The difference from Embodiment 1 is that the connecting device between individual concrete components omits the second connecting sleeve 42, i.e., a connecting device between individual concrete components includes:

[0088] The first connecting body 2 includes a first connecting sleeve 21 and a first connecting rod 22, wherein the first connecting rod 22 is disposed inside the first connecting sleeve 21; wherein the first connecting sleeve 21 and the first connecting rod 22 are threadedly connected.

[0089] The positioning body 3 includes a positioning sleeve 31, and the positioning sleeve 31 has a channel inside;

[0090] The second connecting body 4 includes a second connecting rod 41, and the outer surface of the second connecting rod 41 is provided with an anchor rod that is directly embedded in the concrete.

[0091] The first connecting rod 22 enters the positioning sleeve 31 from one side of the channel, and the second connecting rod 41 enters the positioning sleeve 31 from the other side of the channel. The first connecting body 2 is connected to the positioning body 3 and the second connecting body 4 to form a connector.

[0092] In this embodiment, a sealing material is filled between the first connecting sleeve 21 and the first connecting rod 22, between the first connecting rod 22 and the positioning body 3, between the second connecting rod 41 and the positioning body 3, and between the positioning body 3 and the concrete. The sealing material can be sealant or other substances with sealing properties, which further effectively prevents the first connecting rod 22 and the second connecting rod 41 from being affected by water or other impurities that have seeped into the concrete, thus ensuring their service life.

[0093] In this embodiment, the positioning body 3 also includes a positioning nut 32, which is threadedly connected to the other side of the channel and locks the second connecting rod 41. Since the second connecting sleeve 42 is omitted, the second connecting rod 41 and the positioning nut 32 can be designed as a single unit.

[0094] The remaining components are the same as those of the connection device between individual concrete components provided in Example 1, and will not be described again here.

[0095] A method for installing individual concrete components, utilizing the aforementioned connection device between individual concrete components, includes the following steps:

[0096] The first connecting sleeve 21 of the first connecting body 2 is pre-embedded at the designated end face position of the first concrete component 1, and the second connecting rod 41 is directly pre-embedded in the second concrete component 5.

[0097] After the adjusting nut 23 is inserted into the designated position of the first connecting rod 22, it is inserted into the channel of the positioning body 3. The adjusting washer and the locking nut 26 are installed, and the end of the first connecting rod 22 is locked into the positioning body 3 to form an integral part. Alternatively, after the end of the first connecting rod 22 is locked into the positioning body 3, the positioning nut 32 is threaded into the channel of the positioning body 3 to form an integral part.

[0098] Screw the positioning nut 32 onto the second connecting rod 41, and screw the positioning body equipped with the first connecting rod 22 onto the positioning nut 32 on the second connecting rod 41 connected to the second concrete component 5; or screw the first connecting rod 22 and the positioning body 3, which are integral, directly onto the second connecting rod 41 fixed to the second concrete component 5.

[0099] Move the second concrete component unit 5 and press the first connecting rod 22 into the first connecting sleeve 21 on the first concrete component unit 1, and engage with the first connecting sleeve 21 through the thread. At this time, the first concrete component unit 1 and the second concrete component unit 5 are spliced ​​together.

[0100] Before pressing the first connecting rod 22 into the first concrete component 1 and the first connecting sleeve 21, a sealing material is filled into the first connecting sleeve 21 and the positioning body 3.

[0101] Similarly, in the above, the connection surface of the first concrete component 1 and the connection surface of the second concrete component 5 are provided with a process groove corresponding to the positioning body 3. This process groove is not limited to... Figure 4 As shown in the figure, the process trough can be formed at the first concrete component 1, at the second concrete component 5, or between the first concrete component 1 and the second concrete component 5, as long as the size of the process trough can accommodate the positioning body 3.

[0102] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0103] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A connection device between individual concrete components, characterized in that: include: The first connecting body (2) includes a first connecting sleeve (21) and a first connecting rod (22), wherein the first connecting rod (22) is disposed inside the first connecting sleeve (21); wherein the first connecting sleeve (21) and the first connecting rod (22) are threadedly connected. The positioning body (3) includes a positioning sleeve (31), and the positioning sleeve (31) has a channel inside; The second connector (4) includes a second connecting sleeve (42) and a second connecting rod (41), wherein the second connecting rod (41) is disposed inside the second connecting sleeve (42); The first connecting rod (22) enters the positioning sleeve (31) from one side of the channel, and the second connecting rod (41) enters the positioning sleeve (31) from the other side of the channel. The first connecting body (2) is connected to the positioning body (3) and the second connecting body (4) to form a connector. One side of the first connecting sleeve (21) is closed, and the other side of the first connecting sleeve (21) is open. A first boss is provided at the opening, and a groove is opened in the first boss. The first connecting body (2) also includes an adjusting nut (23), at least one adjusting washer and a locking nut (26). The adjusting nut (23) and the locking nut (26) lock the first connecting rod (22) on the channel of the positioning sleeve (31). When the adjusting nut (23) is compressed, the adjusting nut (23) is squeezed into the groove. The first connecting rod (22) includes a spindle (221), the surface of which is provided with grooves or bosses; the outer surface of the spindle (221) is covered with a surface layer (222), and the outer surface of the surface layer (222) and the inner surface of the first connecting sleeve (21) are threaded together.

2. The connection device between individual concrete components according to claim 1, characterized in that: A sealant is filled between the first connecting sleeve (21) and the first connecting rod (22), between the second connecting sleeve (42) and the second connecting rod (41), between the first connecting rod (22) and the positioning body (3), between the second connecting rod (41) and the positioning body (3), and between the positioning body (3) and the concrete.

3. A connection device between individual concrete components, characterized in that: include: The first connecting body (2) includes a first connecting sleeve (21) and a first connecting rod (22), wherein the first connecting rod (22) is disposed inside the first connecting sleeve (21); wherein the first connecting sleeve (21) and the first connecting rod (22) are threadedly connected. The positioning body (3) includes a positioning sleeve (31), and the positioning sleeve (31) has a channel inside; The second connector (4) includes a second connecting rod (41), and the outer surface of the second connecting rod (41) is provided with an anchor rod that is directly embedded in the concrete; The first connecting rod (22) enters the positioning sleeve (31) from one side of the channel, and the second connecting rod (41) enters the positioning sleeve (31) from the other side of the channel. The first connecting body (2) is connected to the positioning body (3) and the second connecting body (4) to form a connector. One side of the first connecting sleeve (21) is closed, and the other side of the first connecting sleeve (21) is open. A first boss is provided at the opening, and a groove is opened in the first boss. The first connecting body (2) also includes an adjusting nut (23), at least one adjusting washer and a locking nut (26). The adjusting nut (23) and the locking nut (26) lock the first connecting rod (22) on the channel of the positioning sleeve (31). When the adjusting nut (23) is compressed, the adjusting nut (23) is squeezed into the groove. The first connecting rod (22) includes a spindle (221), the surface of which is provided with grooves or bosses; the outer surface of the spindle (221) is covered with a surface layer (222), and the outer surface of the surface layer (222) and the inner surface of the first connecting sleeve (21) are threaded together.

4. The connection device between individual concrete components according to claim 1 or 3, characterized in that: Both the adjusting nut (23) and the adjusting washer have protrusions along the axial direction of the first connecting body (2), and the protrusions of the adjusting nut (23) and the adjusting washer are opposite to each other.

5. The connection device between individual concrete components according to claim 1 or 3, characterized in that: The positioning body (3) also includes a positioning nut (32), which is threaded to the other side of the channel, and the positioning nut (32) locks the second connecting rod (41).

6. The connection device between individual concrete components according to claim 5, characterized in that: The second connecting rod (41) and the positioning nut (32) are integrated.

7. A method for installing individual concrete components, comprising connecting individual concrete components using a connecting device as described in any one of claims 1, 2, 4-6, characterized in that... Includes the following steps: The first connecting sleeve (21) of the first connecting body (2) is pre-embedded at the designated end face position of the first concrete component (1), and the second connecting sleeve (42) of the second connecting body (4) is pre-embedded at the designated end face position of the second concrete component (5). After inserting the adjusting nut (23) into the designated position of the first connecting rod (22), insert it into the channel of the positioning body (3), install the adjusting washer and the locking nut (26), and lock the end of the first connecting rod (22) into the positioning body (3); screw the end of the second connecting rod (41) into the positioning nut (32) and lock it on the inner surface thread of the positioning body (3), so that the first connecting rod (22), the positioning body (3) and the second connecting rod (41) form a whole; or, after inserting the adjusting nut (23) into the designated position of the first connecting rod (22), insert it into the channel of the positioning body (3), install the adjusting washer and the locking nut (26), and lock the end of the first connecting rod (22) into the positioning body (3) to form a whole; The first connecting rod (22), the positioning body (3), and the second connecting rod (41), which are formed as a whole, are screwed into the second connecting sleeve (42) on the second concrete component unit (5); Move the second concrete component unit (5) and press the first connecting rod (22) into the first connecting sleeve (21) on the first concrete component unit (1), and engage with the first connecting sleeve (21) threadedly. At this time, the first concrete component unit (1) and the second concrete component unit (5) are spliced ​​together. Before pressing the first connecting rod (22) into the first connecting sleeve (21) of the first concrete component (1), a sealing substance is filled into the first connecting sleeve (21), the second connecting sleeve (42) and the positioning body (3).

8. A method for installing individual concrete components, comprising connecting individual concrete components using a connecting device as described in any one of claims 3-6, characterized in that... Includes the following steps: The first connecting sleeve (21) of the first connecting body (2) is pre-embedded at the designated end face position of the first concrete component (1), and the second connecting rod (41) is directly pre-embedded in the second concrete component (5). After inserting the adjusting nut (23) into the designated position of the first connecting rod (22), insert it into the channel of the positioning body (3), install the adjusting washer and the locking nut (26), lock the end of the first connecting rod (22) into the positioning body (3) to form an integral part, or after locking the end of the first connecting rod (22) into the positioning body (3), thread the positioning nut into the channel of the positioning body (3) to form an integral part; Screw the positioning nut (32) into the second connecting rod (41), and screw the positioning body equipped with the first connecting rod (22) into the positioning nut (32) on the second connecting rod (41) connected to the second concrete component (5); or screw the positioning nut (32) of the first connecting rod (22) and the positioning body (3) that form an integral part into the second connecting rod (41) fixed on the second concrete component (5); Move the second concrete component unit (5) and press the first connecting rod (22) into the first connecting sleeve (21) on the first concrete component unit (1), and engage with the first connecting sleeve (21) threadedly. At this time, the first concrete component unit (1) and the second concrete component unit (5) are spliced ​​together. Before pressing the first connecting rod (22) into the first connecting sleeve (21) on the first concrete component (1), a sealing substance is filled into the first connecting sleeve (21) and the positioning body (3).

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