Prefabricated component lifting structure and prefabricated components

Abstract

The present invention discloses a lifting structure for a prefabricated component and a prefabricated component. The lifting structure includes a lifting part and an embedded part. The embedded part is embedded in the prefabricated component body of the prefabricated component. The lifting part is used to connect the lifting equipment. The lifting part includes a connecting piece and a lifting piece. The connecting piece can be detachably fixedly connected to the embedded part, and the lifting piece is rotatably connected to the connecting piece. The prefabricated component and lifting structure provided by this solution divide the lifting structure into two parts. One part is the embedded part embedded in the prefabricated component body, and the other part is the lifting part that is detachably fixedly connected to the embedded part and can be lifted. The lifting part is further divided into two parts, and the two parts are rotatably connected. In this way, when the lifting part and the embedded part are connected, the lifting piece of the lifting part can rotate relative to the embedded part, thereby improving the flexibility of the lifting structure, avoiding loosening of the connection between the embedded part and the lifting part, improving the stability and safety of the prefabricated component lifting, and ensuring the life safety of the workers.

Description

Technical Field

[0001] The present invention relates to the technical field of construction, and in particular to a lifting structure of a prefabricated component and the prefabricated component. Background Art

[0002] Existing precast piles generally have smooth outer walls and lack lifting positions, making them inconvenient to lift. The commonly used lifting method involves tying the piles together with ropes and then lifting them with lifting equipment. However, rope tying is limited by the method used, and using ropes for lifting also increases the workload and intensity of workers. Furthermore, if the ropes are not tied securely, they can easily slip, causing the piles to fall off, resulting in safety accidents and threatening the lives of workers. It can also cause the piles to break and be damaged, affecting their normal use.

[0003] There is also a plan to set up a lifting device. A connecting rod is embedded in the precast pile, and the outer end of the connecting rod is flush with the precast pile. In addition, a lifting ring is provided. The upper part of the lifting ring is used to connect with the lifting device, and the lower part of the lifting ring is fixedly connected to the outer end of the embedded connecting rod by thread.

[0004] However, during the lifting process of the precast pile, the rebound of the rope may cause the lifting ring to rotate, and the connection between the lifting ring and the connecting rod will loosen, causing the precast pile to fall off. Since there are staff directing the lifting at the lifting site, safety accidents are prone to occur. In addition, the falling of the precast pile may also cause the precast pile to break and be damaged, affecting normal use. Summary of the Invention

[0005] The present invention provides a lifting structure for a prefabricated component, comprising a lifting part and an embedded part, wherein the embedded part is embedded in the prefabricated component body of the prefabricated component, the lifting part is used to connect a lifting device, and the lifting part comprises a connecting piece and a lifting piece, the connecting piece can be detachably fixedly connected to the embedded part, and the lifting piece is rotatably connected to the connecting piece.

[0006] Optionally, the lifting portion further includes a transition section, and the lifting member and the connecting member are rotatably connected via the transition section;

[0007] At least one of the lifting member and the connecting member is rotatably connected to the transition section.

[0008] Optionally, the transition section is provided with a stepped cavity, the small cavity of the stepped cavity passes through one end of the transition section, the lifting member and / or the connecting member rotatably connected to the transition section include a small diameter section and a large diameter section connected to each other, the small diameter section is located in the small cavity of the stepped cavity, and the large diameter section is located in the large cavity of the stepped cavity, forming a snap connection with the steps of the stepped cavity, and the small diameter section and the large diameter section can rotate in the stepped cavity.

[0009] Optionally, the lifting member includes a lifting ring and a connecting rod connected to the lifting ring, and also includes a nut. The part of the connecting rod located in the small cavity is the small diameter section, and the part of the connecting rod located in the large cavity is threadedly engaged with the nut to form the large diameter section.

[0010] Optionally, the connecting member is a bolt, the portion of the bolt section located in the small cavity is the small diameter section, the bolt head of the bolt is the large diameter section, and the portion of the bolt section passing through the small cavity is connected to the embedded portion.

[0011] Optionally, the connecting member and / or the lifting member are integrally formed with the small-diameter section and the large-diameter section.

[0012] Optionally, the large cavity of the stepped cavity passes through the other end of the transition section, and the large diameter section is loaded into the large cavity; or,

[0013] The transition section includes a first portion having a first through slot and a second portion having a second groove. The first portion and the second portion can be butted and fixed so that the first through slot and the second groove are butted together to form the stepped cavity.

[0014] Optionally, at least one of the lifting member and the connecting member is rotatably connected to the transition section via a bearing.

[0015] Optionally, at least one of the lifting member and the connecting member is provided with a ball head or is connected to a rope ring, so as to achieve a rotatable connection with the transition section through the ball head or the rope ring.

[0016] Optionally, one of the lifting member and the connecting member is rotatably connected to the transition section, and the other is fixedly connected to the transition section or is an integrated structure.

[0017] Optionally, the embedded part includes an embedded tube and embedded main reinforcement connected to each other, and the connecting piece can be inserted into the tube cavity of the embedded tube and fixed.

[0018] Optionally, the embedded main reinforcement is L-shaped, T-shaped, straight-line-shaped, or hook-shaped.

[0019] Optionally, the embedded main reinforcement includes a steel rod and a swaging head, the bottom of the embedded tube is provided with a through hole, the swaging head is located in the tube cavity of the embedded tube and is clamped to the clamping platform at the bottom of the embedded tube.

[0020] The present invention also provides a prefabricated component, comprising a prefabricated component body and a lifting structure, wherein the lifting structure is the lifting structure of the prefabricated component described in any one of the above items; the embedded part of the lifting structure is arranged at the end or side of the prefabricated component body.

[0021] The prefabricated component and lifting structure provided by this solution are divided into two parts: an embedded portion pre-buried within the prefabricated component body, and a lifting unit that is detachably fixedly connected to the embedded portion and capable of being lifted. The lifting unit is further divided into two parts, which are rotatably connected. Thus, when the lifting unit and the embedded portion are connected, the lifting member of the lifting unit can rotate relative to the embedded portion, thereby improving the flexibility of the lifting structure, preventing the connection between the embedded portion and the lifting unit from loosening, and improving the stability and safety of the prefabricated component lifting, thereby ensuring the safety of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1-1 A schematic structural diagram of a specific embodiment of the prefabricated component provided by the present invention;

[0023] Figure 1-2 for Figure 1-1 Set up a magnified view of the lifting structure location;

[0024] Figure 1-3 for Figure 1-2 A local enlarged schematic diagram of position A;

[0025] Figure 2-1 This is a structural schematic diagram of another specific embodiment of the prefabricated component provided by the present invention;

[0026] Figure 2-2 for Figure 2-1 Set up a magnified view of the lifting structure location;

[0027] Figure 2-3 for Figure 2-2 A local enlarged schematic diagram of position B;

[0028] Figure 3-1 It is a structural schematic diagram of a first specific embodiment of the embedded part;

[0029] Figure 3-2 is a structural schematic diagram of a second specific embodiment of the embedded part;

[0030] Figure 3-3 is a structural schematic diagram of a third specific embodiment of the embedded part;

[0031] Figure 3-4 is a structural schematic diagram of a fourth specific embodiment of the embedded portion;

[0032] Figure 4-1 It is a structural schematic diagram of the first embodiment of the lifting part;

[0033] Figure 4-2 for Figure 4-1 Schematic diagram of the lifting device;

[0034] Figure 4-3 for Figure 4-1Schematic diagram of the connecting piece and the transition section;

[0035] Figure 5-1 It is a structural schematic diagram of the second embodiment of the lifting part;

[0036] Figure 5-2 for Figure 5-1 Schematic diagram of the lifting device;

[0037] Figure 5-3 for Figure 5-1 Schematic diagram of the transfer section and connectors;

[0038] Figure 6 Schematic diagram of the structure of the third embodiment of the lifting part;

[0039] Figure 7 Schematic diagram of the structure of the fourth embodiment of the lifting part;

[0040] Figure 8-1 1 is a structural diagram of a fifth embodiment of a lifting part;

[0041] Figure 8-2 for Figure 8-1 Schematic diagram of the lifting device;

[0042] Figure 8-3 for Figure 8-1 Schematic diagram of the transfer section;

[0043] Figure 8-4 for Figure 8-1 Schematic diagram of the connecting parts;

[0044] Figure 9 Schematic diagram of the structure of the sixth embodiment of the lifting part.

[0045] The reference numerals in Figures 1 to 9 are described as follows:

[0046] 100 prefabricated component body;

[0047] 10. Lifting structure;

[0048] 11 Lifting portion, 111 Lifting member, 111a Lifting ring, 111b Connecting rod, 111c Nut, 111e Ball head, 111d Fixing section, 111d' Protrusion, 111f Large-diameter head, 112 Adapter section, 112a Small cavity, 112b Large cavity, 1121 First section, 1121a First connecting element, 1122 Second section, 1122a Second connecting element, 113 Connecting member, 113a Bolt head, 113a' Groove, 113b Bolt section, 113c Connecting ring, 113d Threaded rod, 114 Bearing, 115 Rope eye;

[0049] 12 embedded part, 121 embedded tube, 121a tube cavity, 121b clamping table, 122 embedded main reinforcement, 122a heading. DETAILED DESCRIPTION

[0050] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0051] The lifting structure in this embodiment is used to lift prefabricated components, including prefabricated component bodies 100. These components, such as prefabricated piles, prefabricated wall panels, and prefabricated staircases, are difficult to transport and install and require lifting. Lifting structure 10 specifically includes a lifting portion 11 and an embedded portion 12. Embedded portion 12 is embedded within prefabricated component body 100, while lifting portion 11 is used to connect to external lifting equipment.

[0052] For reference Figures 1-1 to 2-3 understand, Figure 1-1 1-2 is a structural diagram of a specific embodiment of the prefabricated component provided by the present invention, wherein the lifting structure 10 is provided on the side of the prefabricated component body 100; Figure 1-1 An enlarged view of the position of the lifting structure 10 is provided; Figure 1-3 for Figure 1-2 A local enlarged schematic diagram of position A.

[0053] Figure 2-1 This is a structural schematic diagram of another specific embodiment of the prefabricated component provided by the present invention, wherein the lifting structure 10 is provided at the end of the prefabricated component body 100; Figure 2-2 for Figure 2-1 An enlarged view of the position of the lifting structure 10 is provided; Figure 2-3 for Figure 2-2 A locally enlarged schematic diagram of position B.

[0054] The prefabricated component includes a prefabricated component body 100. The lifting structure 10 can be arranged on the side of the prefabricated component body 100 or at the end of the prefabricated component body 100. The number of lifting structures 10 can be more than one as long as the lifting can be achieved. Two lifting structures 10 are provided in both embodiments, which is conducive to the balance of the lifting.

[0055] In an embodiment of the present invention, the lifting part 11 specifically includes a connecting member 113 and a lifting member 111. The connecting member 113 can be detachably fixedly connected to the embedded part 12, and the lifting member 111 can be rotatably connected relative to the connecting member 113, that is, the lifting member 111 and the connecting member 113 are in a connected relationship and can rotate relative to each other.

[0056] The structure of the embedded portion 12 in the prefabricated component body 100 can be referred to Figure 3-1 It is understood that FIG3-1 is a schematic structural diagram of a first specific embodiment of the embedded portion 12 , and the specific structure of the lifting portion 11 can be understood by referring to the subsequent multiple embodiments.

[0057] like Figure 3-1 As shown, the embedded part 12 includes an embedded tube 121 and an embedded main reinforcement 122. Figure 1-3 2-3. The connector 113 of the lifting portion 11 can be inserted into the barrel cavity 121a of the embedded barrel 121, achieving a removable fixation with the embedded barrel 121. For example, if the barrel cavity 121 is provided with internal threads and the connector 113 has an externally threaded rod, it can be threadedly connected to the embedded barrel 121, achieving a removable fixed connection between the lifting portion 11 and the embedded portion 12. The embedded main reinforcement 122 and the embedded barrel 121 can be a separate connection structure or an integrated structure. The embedded main reinforcement 122 can strengthen the anchoring force of the embedded barrel 121, improving the stability and safety of the lifting structure 10.

[0058] In this embodiment, the main body of the embedded main reinforcement 122 is a steel rod, and a swaging head 122a is formed at one end of the steel rod. A through hole is provided at the bottom of the embedded tube 121, and the steel rod passes through the through hole. The swaging head 122a is located in the embedded tube 121. The radial dimension of the swaging head 122a is larger than the through hole dimension. At this time, the bottom of the embedded tube 121 is equivalent to forming a clamping platform 121b to form a clamping connection with the swaging head 122a, so that the embedded main reinforcement 122 can be connected to the embedded tube 121.

[0059] Figure 3-1 In the embodiment, the embedded main reinforcement 122 is in a straight line. In order to further improve the anchoring force, the embedded main reinforcement 122 is not limited to a straight line, but can also be as follows: Figures 3-2 to 3-4 Other shapes shown, Figure 3-2 FIG3-3 is a schematic structural diagram of a second specific embodiment of the embedded portion 12, wherein the embedded main reinforcement 122 is L-shaped. FIG3-4 is a schematic structural diagram of a third specific embodiment of the embedded portion 12, wherein the embedded main reinforcement 122 is T-shaped.

[0060] Figure 3-4 1 is a structural diagram of a fourth embodiment of the embedded portion 12, wherein the embedded main reinforcement 122 is hook-shaped. Compared with the straight embedded main reinforcement 122, this shape design can further improve the anchoring force.

[0061] The embedded portion 12 is embedded within the prefabricated component body 100, with the end of the embedded portion 12 flush with the outer surface of the prefabricated component body 100. The connector 113 of the lifting portion 11 is inserted into the embedded tube 121 to securely connect the lifting portion 11. That is, during lifting, the lifting portion 11 is connected to the embedded portion 12, and can be separated from the embedded portion 12 for other working conditions. The lifting portion 11 only protrudes from the outer surface of the prefabricated component body 100 when lifting is required, and can be detached when lifting is not required, without affecting operations such as stacking the prefabricated component body 100.

[0062] The specific structure of the lifting portion 11 will be described in detail below.

[0063] Example 1

[0064] Please refer to Figures 4-1 to 4-3 , Figure 4-1 FIG4-2 is a structural diagram of the first embodiment of the lifting part 11; FIG4-2 is Figure 4-1 A schematic diagram of the lifting member 111; Figure 4-3 for Figure 4-1 Schematic diagram of the middle connecting member 113 and the transition section 112.

[0065] Figure 4-1 In the embodiment, the lifting portion 11 includes a connecting member 113 and a lifting member 111 , and further includes a transition section 112 . The lifting member 111 and the connecting member 113 are rotatably connected through the transition section 112 .

[0066] Specifically, the transition section 112 is provided with a stepped cavity, which includes a large cavity 112b and a small cavity 112a connected to each other. The small cavity 112a of the stepped cavity passes through one end of the transition section 112. Figure 4-3 The lifting member 111 includes a lifting ring 111a and a plug-in section. Figure 4-2 As shown, the plug-in section includes a large diameter section and a small diameter section. The lifting ring 111a can be connected to a lifting device, such as a hook of the lifting device, and the plug-in section is used to be inserted into the stepped cavity. Figure 4-1 In the figure, after the plug-in section is inserted into the stepped cavity, the large diameter section of the plug-in section is located in the large cavity 112b of the stepped cavity, and the small diameter section of the plug-in section is located in the small cavity 112a of the stepped cavity. The radial dimension of the large diameter section is larger than the radial dimension of the small cavity 112a, and it is snap-fitted with the step formed by the transition section 112. The plug-in section will not detach from the transition section 112 upward, and the plug-in section can rotate relative to the stepped cavity, thereby realizing the rotational connection between the lifting piece 111 and the transition section 112.

[0067] Among them, such as Figure 4-2 As shown, the plug-in section specifically includes a connecting rod 111b and a nut 111c. The portion of the connecting rod 111b located in the small cavity 112a is the aforementioned small diameter section, and the portion of the connecting rod 111b located in the large cavity 112b is threadedly engaged with the nut 111c to form a large diameter section. This formation method is relatively simple and easy to install. Figure 4-3 As shown, the connecting member 113 and the transition section 112 are an integral structure. Of course, the connecting member 113 and the transition section 112 can also be connected and fixed by threaded connection or other methods.

[0068] In this way, the connecting member 113 is fixed relative to the transition section 112 , and the lifting member 111 is rotatable relative to the transition section 112 , thereby achieving a rotatable connection between the connecting member 113 and the lifting member 111 .

[0069] Example 2

[0070] Please refer to Figures 5-1 to 5-3 , Figure 5-1 FIG5-2 is a structural diagram of the second embodiment of the lifting part 11; FIG5-3 is a structural diagram of the second embodiment of the lifting part 11; FIG5-4 is a structural diagram of the second embodiment of the lifting part 11; FIG5-5 is Figure 5-1 A schematic diagram of the lifting member 111; Figure 5-3 for Figure 5-1 Schematic diagram of the intermediate connecting section 112 and the connecting piece 113.

[0071] The lifting portion 11 in this embodiment also includes a connecting member 113, a lifting member 111, and a transition section 112. The lifting member 111 and the connecting member 113 are rotatably connected via the transition section 112. In this embodiment, the connecting member 113 and the transition section 112 are also integrally formed, and the lifting member 111 is rotatably connected relative to the transition section 112.

[0072] Specifically, the transition section 112 is provided with a stepped cavity, which includes a large cavity 112b and a small cavity 112a connected to each other. The small cavity 112a of the stepped cavity passes through one end of the transition section 112. Figure 5-3 The lifting member 111 includes a lifting ring 111a and a plug-in section, the plug-in section includes a large diameter section and a small diameter section, and is an integrated structure, specifically Figure 5-2 As shown, the small diameter section is the connecting rod 111b, and the large diameter section is the large diameter head 111f provided at the end of the connecting rod 111b. The lifting ring 111a can be connected to the lifting equipment, and the plug-in section is used to be inserted into the stepped cavity. Figure 5-1 In the figure, after the plug-in section is inserted into the stepped cavity, the large diameter section of the plug-in section is located in the large cavity 112b of the stepped cavity, and the small diameter section of the plug-in section is located in the small cavity 112a of the stepped cavity. The radial dimension of the large diameter section is larger than the radial dimension of the small cavity 112a, and it is snap-fitted with the step formed by the transition section 112. The plug-in section will not detach from the transition section 112 upward, and the plug-in section can rotate relative to the stepped cavity, thereby realizing the rotational connection between the lifting piece 111 and the transition section 112.

[0073] The lifting member 111 in this embodiment can be formed at the same time as the transition section 112. In order to facilitate the formation, the transition section 112 can be formed at the same time as the transition section 112. Figure 5-3 As shown, it may include a first part 1121 having a first through groove and a second part 1122 having a second groove, and the plug-in section of the lifting member 111 is inserted into the first through groove. The first part 1121 and the second part 1122 can be docked to form an integral structure after docking, so that the first through groove and the second groove are docked to form the above-mentioned stepped cavity, the upper part of the first through groove is a small cavity 112a, and the lower part of the first through groove and the second through groove are docked to form a large cavity 112b. The connecting rod 111b of the lifting member 111 can be inserted into the small cavity 112a, and then the large diameter head 111f is integrally formed. The large diameter head 111f can be specifically formed by a cold heading process. Then the first part 1121 with the lifting member 111 installed is docked and fixed with the second part 1122, and the second part 1122 is integrally formed with the connecting member 113. As shown Figure 5-3 As shown, the opening edges of the first portion 1121 and the second portion 1122 are respectively provided with a first connecting element 1121a and a second connecting element 1122a, which can be fixed by welding or bolt connection, for example.

[0074] In this way, the connecting member 113 is fixed relative to the transition section 112, and the lifting member 111 is rotatable relative to the transition section 112, thereby achieving a rotatable connection between the connecting member 113 and the lifting member 111. Compared with Example 1, the large diameter section and the small diameter section of the plug-in section of the lifting member 111 in this embodiment are integrally formed, while the transition section 112 is separately provided. It can be understood that the large diameter head 111f or the nut 111c serves as the large diameter section of the plug-in section of the lifting member 111, so that it can be accommodated in the large cavity 112b and engage with the step formed by the large cavity 112b and the small cavity 112a to prevent the lifting member 111 from separating from the transition section 112. Therefore, the setting method of the large diameter section is not limited to the above-mentioned nut 111e or large diameter head 111f, as long as the large diameter section and the lifting member 111 are integral or fixedly connected. For example, the nut 111e and the connecting rod 111b of the lifting member 111 may be connected by pins or other fixed connections in addition to threaded connections. Similarly, the large-diameter head 111f and the connecting rod 111b may be integrated or fixedly connected in separate parts.

[0075] In addition, in order to facilitate assembly, the large cavity 112b in the above-mentioned embodiment 1 and embodiment 2 has at least one notch, so the nut 111c and the large diameter head 111f can be directly placed in the large cavity 112b, as shown in FIG. Figure 4-3 、 5-3 As shown, the large cavity 112b is through in a direction perpendicular to the paper surface and is a through-slot structure with two notches.

[0076] Example 3

[0077] Please refer to Figure 6 , Figure 6 Schematic diagram of the structure of the third embodiment of the lifting part 11.

[0078] The lifting portion 11 in this embodiment also includes a connecting member 113, a lifting member 111, and a transition section 112. The lifting member 111 and the connecting member 113 are rotatably connected via the transition section 112. In this embodiment, the connecting member 113 and the transition section 112 are integrally formed, and the lifting member 111 is rotatably connected relative to the transition section 112.

[0079] like Figure 6As shown, the lifting member 111 includes a lifting ring 111a and a connecting rod 111b integrally provided with the lifting ring 111a. The connecting rod 111b and the transition section 112 are rotatably connected via a bearing 114. This rotatable connection is also relatively simple. The connecting member 113 is an integral structure with the transition section 112. It is understood that the connecting member 113 and the transition section 112 can also be fixed by threaded connection, welding, or other methods.

[0080] In this way, the connecting member 113 is fixed relative to the transition section 112 , and the lifting member 111 is rotatable relative to the transition section 112 , thereby achieving a rotatable connection between the connecting member 113 and the lifting member 111 .

[0081] Example 4

[0082] Please refer to Figure 7 , Figure 7 Schematic diagram of the structure of the fourth embodiment of the lifting part 11.

[0083] The lifting portion 11 in this embodiment also includes a connecting member 113, a lifting member 111, and a transition section 112. The lifting member 111 and the connecting member 113 are rotatably connected via the transition section 112. In this embodiment, the connecting member 113 and the transition section 112 are also integrally formed, and the lifting member 111 is rotatably connected relative to the transition section 112.

[0084] The lifting member 111 in this embodiment includes a lifting ring 111a and a ball head 111e integrally provided with the lifting ring 111a. Figure 7 As shown, the lifting member 111 comprises a connecting lifting ring 111a and a ball head 111e. A corresponding ball head hole is provided at one end of the transition section 112. The ball head 111e engages with the ball head hole, preventing it from disengaging while allowing it to rotate within the hole. This ensures a rotatable connection between the lifting member 111 and the transition section 112. The connecting member 113 is integrally formed with the transition section 112. It is understood that the connecting member 113 and the transition section 112 can also be secured by threaded connection, welding, or other methods.

[0085] In this way, the connecting member 113 is fixed relative to the transition section 112 , and the lifting member 111 is rotatable relative to the transition section 112 , thereby achieving a rotatable connection between the connecting member 113 and the lifting member 111 .

[0086] Example 5

[0087] Please refer to Figure 8-1 , Figure 8-1 1 is a structural diagram of a fifth embodiment of the lifting portion 11; Figure 8-2 for Figure 8-1 A schematic diagram of the lifting member 111; Figure 8-3 for Figure 8-1 A schematic diagram of the transfer section 112; Figure 8-4 for Figure 8-1 Schematic diagram of the middle connecting member 113.

[0088] The lifting portion 11 in this embodiment also includes a connecting member 113, a lifting member 111, and a transition section 112. The lifting member 111 and the connecting member 113 are rotatably connected via the transition section 112. This embodiment is different from Embodiments 1-4 in that the connecting member 113 and the transition section 112 are rotatably connected, while the lifting member 111 and the transition section 112 are fixedly connected.

[0089] The transition section 112 is also provided with a stepped cavity, with a small cavity 112a extending through one end of the transition section 112 and a large cavity 112b extending through the other end. The junction of the large and small cavities 112b and 112a forms a step. The connector 113 comprises a large-diameter section and a small-diameter section. The large-diameter section is located within the large cavity 112b, while the small-diameter section extends through the small cavity 112a. The portion of the small-diameter section extending out of the small cavity 112a is fixedly connected to the embedded portion 12, while the large-diameter section is locked in the step. The connector 113 cannot be disengaged from the small cavity 112a of the transition section 112, and is therefore rotatable relative to the transition section 112, thus achieving a rotatable connection between the transition section 112 and the connector 113. As shown in Figure 8-4, the connecting member 113 can be a bolt structure, and its small diameter section is the bolt section 113b. The bolt section 113b can be threadedly connected to the embedded cylinder 121 of the embedded part 12, and its large diameter section is the bolt head 113a. The bolt head 113a can be a hexagonal nut. When the lifting part 11 is formed, the bolt head 113a can be pressed from top to bottom to make the bolt pass through the small cavity 112a and pass through the transition section 112.

[0090] The lifting member 111 also includes a lifting ring 111a connected to the lifting equipment, and also includes a fixing section 111d. The fixing section 111d can be inserted into the large cavity 112b of the above-mentioned transition section 112 for threaded fixing connection. The fixing section 111d and the lifting ring 111a can be an integrated structure. It is understood that the lifting member 111 and the transition section 112 can also be fixedly connected by means such as welding, or can be set as an integral part with the transition section 112. Here, the split setting facilitates the insertion of the connecting member 113 into the transition section 112 from top to bottom, that is, the connecting member 113 first enters from the large cavity 112b, and the small diameter section of the connecting member 113 passes through the small cavity 112a.

[0091] In this way, the connecting member 113 is fixed relative to the transition section 112 , and the lifting member 111 is rotatable relative to the transition section 112 , thereby achieving a rotatable connection between the connecting member 113 and the lifting member 111 .

[0092] in addition, Figure 8-4In the figure, a groove 113a' is provided in the middle of the top of the large diameter section of the connecting member 113, specifically in the middle of the bolt head 113a, and a protrusion 111d' is provided in the middle of the bottom of the fixed section 111d of the lifting member 111. The protrusion 111d' can be inserted into the groove 113a' to play a centering role. Of course, the protrusion 111d' can rotate freely relative to the groove 113a' and does not interfere with the rotation of the connecting member 113 relative to the transition section 112.

[0093] In this way, the connecting member 113 is rotatably connected relative to the transition section 112, and the lifting member 111 is fixed relative to the transition section 112, thereby achieving a rotatable connection of the connecting member 113 relative to the transition section 112.

[0094] Example 6

[0095] Please refer to Figure 9 , Figure 9 Schematic diagram of the structure of the sixth embodiment of the lifting part 11.

[0096] The lifting portion 11 in this embodiment also includes a connecting member 113, a lifting member 111, and a transition section 112. The lifting member 111 and the connecting member 113 are rotatably connected via the transition section 112. This embodiment differs from the above embodiment in that both the connecting member 113 and the lifting member 111 are rotatably connected relative to the transition section 112.

[0097] like Figure 9 As shown, the lifting member 111 is provided with a lifting ring 111a and a ball head 111e. One end of the transition section 112 is provided with a ball head hole. Similar to Example 5, the lifting member 111 cannot be separated from the transition section 112, but can be rotated to achieve a rotatable connection with the transition section 112. The connecting member 113 has a threaded rod 113d at one end for detachable fixed connection to the embedded portion 12, and a connecting ring 113c at the other end. The connecting ring 113c and the transition section 112 are connected by a rope ring 115. Figure 9 In the figure, a ball head hole is set at one end of the transition section 112 to cooperate with the ball head 111e of the lifting piece 111, and a rope groove is set at the other end. The rope ring 115 passes through the rope groove and the connecting ring 113c, connecting the transition section 112 and the connecting piece 113 in series, so that the connecting piece 113 can also rotate relative to the transition section 112.

[0098] In this way, both the connecting member 113 and the lifting member 111 are rotatable relative to the transition section 112 , thereby achieving a rotatable connection of the connecting member 113 relative to the lifting member 111 .

[0099] As can be seen from the above embodiments, the present invention divides the lifting structure into two parts: an embedded portion 12 embedded in the prefabricated component body 100; and a lifting portion 11 that is detachably fixedly connected to the embedded portion 12 and capable of being lifted. Furthermore, the lifting portion 11 is further divided into two parts, which are rotatably connected. Thus, when the lifting portion 11 and the embedded portion 12 are connected, the lifting member 111 of the lifting portion 11 can rotate relative to the embedded portion 12, thereby improving the flexibility of the lifting structure, preventing the loose connection between the embedded portion 12 and the lifting portion 11, improving the stability and safety of the prefabricated component lifting, and protecting the lives of workers.

[0100] In each of the above embodiments of the lifting portion 11, the lifting member 111 and the connecting member 113 are rotatably connected via the transition section 112. In embodiments 1-4, the lifting member 111 is rotatably connected relative to the transition section 112, in embodiment 5, the connecting member 113 is rotatably connected relative to the transition section 112, and in embodiment 6, both the connecting member 113 and the lifting member 111 are rotatably connected relative to the transition section 112. It can be seen that to achieve a rotatable connection between the lifting member 111 and the connecting member 113, at least one of the two members needs to be rotatably connected to the transition section 112.

[0101] It should be noted that the rotatable connection method between the connecting member 113 and the transition section 112 in the above-mentioned embodiments is interchangeable with the rotatable connection method between the lifting member 111 and the transition section 112. For example, the connecting member 113 and the transition section 112 can also be connected by means of a ball head or a bearing, while the lifting member 111 and the transition section 112 can be rotatably connected by means of a rope ring 115. The rotatable connection methods of the lifting member 111 and the transition section 112 can also be superimposed. For example, when the lifting member 111 and the transition section 112, and the connecting member 113 and the transition section 112 are both rotatably connected, the rotatable connection methods can all be bearing connection, ball head connection, rope ring connection, rotatable connection in conjunction with a stepped cavity, etc.

[0102] The embodiments define the lifting member 111, transition section 112, and connecting member 113 to facilitate understanding of the functions of each component. However, in reality, the transition section 112 is not necessarily a separate structure from a physical perspective. For example, in Embodiments 1-3, the transition section 112 and connecting member 113 are actually an integrated structure. That is, when the transition section 112 is not rotatably connected to the connecting member 113 or the lifting member 111, it can be configured as an integrated structure or a separate fixed connection. This solution does not impose any restrictions. When it is an integrated structure, it is equivalent to having only the lifting member 111 and the connecting member.

[0103] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A lifting structure (10) for a prefabricated component, comprising a lifting portion (11) and an embedded portion (12), wherein the embedded portion (12) is embedded in a prefabricated component body (100) of the prefabricated component, and the lifting portion (11) is used to connect a lifting device, characterized in that: The lifting portion (11) includes a connecting member (113) and a lifting member (111), wherein the connecting member (113) can be detachably fixedly connected to the embedded portion (12), and the lifting member (111) is rotatably connected to the connecting member (113); The lifting portion (11) further includes a transition section (112); At least one of the lifting member (111) and the connecting member (113) is rotatably connected to the transition section (112), the lifting member (111) is connected to one end of the transition section (112), and the connecting member (113) is connected to the other end opposite to the transition section (112); The transition section (112) is provided with a stepped cavity, the stepped cavity comprising a large cavity (112b) and a small cavity (112a) connected to each other, the small cavity (112a) passing through one end of the transition section (112), the lifting member (111) and / or the connecting member (113) rotatably connected to the transition section (112) both comprising a small diameter section and a large diameter section connected to each other, the small diameter section being located in the small cavity (112a) of the stepped cavity, the large diameter section being located in the large cavity (112b) of the stepped cavity, forming a snap connection with the steps of the stepped cavity, and the small diameter section and the large diameter section being rotatable in the stepped cavity; The embedded portion (12) includes an embedded tube (121), and the connecting piece (113) can be inserted into the tube cavity (121a) of the embedded tube (121) and threadedly connected to the embedded tube (121); The connecting member (113) and / or the lifting member (111) are integrally formed with the small diameter section and the large diameter section; The large cavity (112b) of the stepped cavity passes through the other end of the transition section (112), and the large diameter section is loaded into the large cavity (112b); or, The transition section (112) comprises a first portion (1121) having a first through slot and a second portion (1122) having a second groove, wherein the first portion (1121) and the second portion (1122) can be butted and fixed, so that the first through slot and the second groove are butted together to form the stepped cavity.

2. The prefabricated component lifting structure (10) according to claim 1, characterized in that: The lifting member (111) includes a lifting ring (111a) and a connecting rod (111b) connected to the lifting ring (111a), and also includes a nut (111c). The portion of the connecting rod (111b) located in the small cavity (112a) is the small-diameter section, and the portion of the connecting rod (111b) located in the large cavity (112b) is threadedly engaged with the nut (111c) to form the large-diameter section.

3. The prefabricated component lifting structure (10) according to claim 1, characterized in that: The connecting member (113) is a bolt, the portion of the bolt segment (113b) located in the small cavity (112a) is the small diameter segment, the bolt head (113a) of the bolt is the large diameter segment, and the portion of the bolt segment (113b) passing through the small cavity (112a) is connected to the embedded portion (12).

4. The prefabricated component lifting structure (10) according to claim 1, characterized in that: One of the lifting member (111) and the connecting member (113) is rotatably connected to the transition section (112), and the other is fixedly connected to the transition section (112) or is an integrated structure.

5. The prefabricated component lifting structure (10) according to any one of claims 1 to 4, characterized in that: The embedded portion (12) includes an embedded main reinforcement (122) connected to the embedded tube (121).

6. The prefabricated component lifting structure (10) according to claim 5, characterized in that: The embedded main reinforcement (122) is L-shaped, T-shaped, straight-line-shaped, or hook-shaped.

7. The prefabricated component lifting structure (10) according to claim 5, characterized in that: The embedded main reinforcement (122) comprises a steel rod and a swaging head (122a); a through hole is provided at the bottom of the embedded tube (121); the swaging head (122a) is located in the tube cavity (121a) of the embedded tube (121) and is clamped to the clamping platform (121b) at the bottom of the embedded tube (121).

8. A prefabricated component, comprising a prefabricated component body (100) and a lifting structure (10), characterized in that: The lifting structure (10) is the lifting structure (10) of the prefabricated component according to any one of claims 1 to 7; the embedded portion (12) of the lifting structure (10) is provided at the end or side of the prefabricated component body (100).

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