CN219080721U

CN219080721U - Prefabricated structure

Info

Publication number: CN219080721U
Application number: CN202223352048.8U
Authority: CN
Inventors: 钟智谦
Original assignee: Guangzhou Tianxing Machinery Joint Co ltd
Current assignee: Guangzhou Tianxing Machinery Joint Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-05-26
Anticipated expiration: 2032-12-12

Abstract

The utility model relates to a prefabricated structure comprising: a first member, a first sleeve, a second sleeve, and a second member disposed in this order along a first direction; the first sleeve and the second sleeve are respectively provided with mounting holes which are coaxially arranged and mutually communicated along a first direction; the connecting structure comprises a first connecting piece, a second connecting piece and a third connecting piece; the first connecting piece comprises a first connecting section and a second connecting section, and the third connecting piece is sleeved on the first connecting section and is installed in one of the installation holes; the second connecting piece is sleeved on the second connecting section; the second connection member is configured to have a predetermined elastic force at least in a radial direction of the mounting hole. Thus, the first sleeve and the second sleeve are connected through the connecting structure so that the first component is connected with the second component; the second connecting piece of the connecting structure is configured to have the preset elastic force at least along the radial direction of the mounting hole, so that the second connecting piece can be mounted in the other mounting hole by means of the preset elastic force, and the connection is simple and convenient.

Description

Prefabricated structure

Technical Field

The utility model relates to the technical field of buildings, in particular to a prefabricated structure.

Background

In construction engineering, it is often necessary to join together two prefabricated elements made of concrete. In the related art, two prefabricated parts are connected through interference fit of a connecting structure and the prefabricated parts, but the interference fit has the problem of difficult connection.

Disclosure of Invention

Based on this, it is necessary to provide a prefabricated structure that facilitates connection, the prefabricated structure comprising a connection structure having a preset elasticity, so that the connection of the connection structure with two prefabricated elements made of concrete is simple.

According to one aspect of the present application, there is provided a prefabricated structure comprising:

a first member, a first sleeve, a second sleeve, and a second member disposed in this order along a first direction; one side of the first sleeve and the second sleeve away from each other is respectively connected with the first member and the second member; the first sleeve and the second sleeve are respectively provided with mounting holes which are coaxially arranged and mutually communicated along the first direction; and

The connecting structure comprises a first connecting piece, a second connecting piece and a third connecting piece; the first connecting piece comprises a first connecting section and a second connecting section which are sequentially connected, and the third connecting piece is sleeved on the first connecting section and is arranged in one of the mounting holes; the second connecting piece is sleeved on the second connecting section;

wherein the second connection member is configured to have a predetermined elastic force at least in a radial direction of the mounting hole so that the second connection member can be mounted in the other mounting hole by means of the predetermined elastic force.

The prefabricated structure enables the first component and the second component to be connected together by the aid of the first sleeve and the second sleeve by arranging the first sleeve and the second sleeve which are respectively connected with the first component and the second component; the first sleeve and the second sleeve are respectively provided with mounting holes which are communicated with each other, and the connecting structure can be connected with the first sleeve and the second sleeve by means of the mounting holes, so that the first sleeve and the second sleeve are connected, and the first component and the second component are connected; the second connecting piece of the connecting structure is configured to have the preset elastic force at least along the radial direction of the mounting hole, so that the second connecting piece can be mounted in the other mounting hole by means of the preset elastic force, and the connection is simple and convenient.

In one embodiment, a first clamping portion is arranged on the outer peripheral surface of the first connecting section, and a second clamping portion corresponding to the first clamping portion is arranged on the inner peripheral surface of the third connecting piece;

the first and second clamping portions are engageable with each other to limit a degree of freedom of the third and second connectors in the first direction.

In one embodiment, a first engaging portion is provided on a side wall of each mounting hole, a second engaging portion corresponding to the first engaging portion is provided on an outer peripheral surface of the second connecting member, and a third engaging portion corresponding to the first engaging portion is provided on an outer peripheral surface of the third connecting member;

the second engagement portion is capable of cooperating with the corresponding first engagement portion to limit the degree of freedom of the second connector in the first direction; the third engagement portion is engageable with its corresponding first engagement portion to limit the degree of freedom of the third connector in the first direction.

In one embodiment, the first connecting piece further comprises a limiting part connected to one side of the second connecting section away from the first connecting section, and the limiting part is provided with a first limiting surface; one end of the second connecting piece, which is far away from the first connecting section, is provided with a second limiting surface which is propped against the first limiting surface;

the inner contour of the orthographic projection of the first limiting surface on the reference surface is positioned in the outer contour of the orthographic projection of the second limiting surface on the reference surface; the reference plane is a plane perpendicular to the first direction.

In one embodiment, the first limiting surface has a first edge and a second edge that are looped around the second connecting section, and the first edge is closer to the second connecting section than the second edge; in the first direction, the first edge is located upstream of the second edge, and a direction in which the first edge points to the second edge is disposed at an angle to the first direction.

In one embodiment, the second limiting surface is provided with a third edge and a fourth edge which are annularly arranged on the second connecting section, and the third edge is closer to the second connecting section than the fourth edge; in the first direction, the third edge is located upstream of the fourth edge, and the direction in which the third edge points to the fourth edge is arranged at an angle to the first direction.

In one embodiment, the direction in which the first edge points to the second edge is parallel to the direction in which the third edge points to the fourth edge.

In one embodiment, the second connecting piece is provided with at least one opening in a penetrating manner along a radial direction of the mounting hole, and at least one opening penetrates at least one end of the second connecting piece along the first direction.

In one embodiment, the second connecting piece is provided with at least one first opening, and at least one first opening penetrates through one end, far away from the first connecting section, of the second connecting piece.

In one embodiment, the second connecting piece is provided with at least one second opening, and at least one second opening penetrates through one end, close to the first connecting section, of the second connecting piece;

the first openings and the second openings are distributed in a staggered manner along the circumferential direction of the mounting hole.

In one embodiment, the prefabricated structure further comprises two protective shells arranged opposite along the first direction;

one of the protective shells is arranged between the first member and the first sleeve and is used for protecting the mounting hole formed in the first sleeve;

the other protective shell is arranged between the second component and the second sleeve and used for protecting the mounting hole formed in the second sleeve.

In one embodiment, each of the protective cases includes a protective case body and a mounting portion connected to the protective case body;

the mounting part of one protective shell is connected with one side of the first sleeve, which is far away from the second sleeve, along the first direction, and the mounting part of the other protective shell is connected with one side of the second sleeve, which is far away from the first sleeve, along the first direction; each protective shell body is provided with a cavity, and each cavity is communicated with the mounting hole corresponding to the mounting part;

the inner contour of the orthographic projection of the mounting part on the reference surface is positioned outside the inner contour of the orthographic projection of the first sleeve on the reference surface; the reference plane is a plane perpendicular to the first direction.

In one embodiment, the protective housing body has a fifth edge and a sixth edge, the sixth edge connecting the mounting portion; along the first direction, the fifth edge is located upstream of the sixth edge, and the direction of the fifth edge pointing to the sixth edge is arranged at an angle with respect to the first direction.

Drawings

FIG. 1 is a schematic view of an assembled prefabricated structure according to an embodiment of the present utility model;

FIG. 2 is a schematic structural view of a first connecting member according to an embodiment of the utility model;

FIG. 3 is a schematic diagram illustrating a structure of a second connecting member according to an embodiment of the utility model;

FIG. 4 is a schematic top view of the second connector of FIG. 3 according to the present utility model;

FIG. 5 is a schematic structural view of a third connecting member according to an embodiment of the present utility model;

fig. 6 is a schematic top view of the third connector of fig. 5 according to the present utility model.

Reference numerals illustrate:

10. prefabricating a structure; 11. a first member; 12. a second member; 13. a first sleeve; 14. a second sleeve; 15. a mounting hole; 151. a first engagement portion; 16. a connection structure; 161. a first connector; 1611. a first connection section; 1611a, a first clamping portion; 1612. a second connection section; 1613. a limit part; 1613a, a first stop surface; 1613b, a first edge; 1613c, a second edge; 162. a second connector; 1621. a second engagement portion; 1622. the second limiting surface; 1623. a third edge; 1624. a fourth edge; 1625. a first opening; 1626. a second opening; 163. a third connecting member; 1631. a second clamping part; 1632. a third engagement portion; 17. a protective shell; 171. a protective housing body; 172. a mounting part; 173. a cavity;

x: a first direction.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

FIG. 1 is a schematic diagram illustrating the assembly of a prefabricated structure according to an embodiment of the present utility model.

Referring to fig. 1, the present application provides a prefabricated structure 10, including a first member 11, a first sleeve 13, a second sleeve 14 and a second member 12 sequentially arranged along a first direction (as shown in an X direction in fig. 1), and a connection structure 16, wherein mounting holes 15 coaxially arranged and mutually communicated are respectively provided along the first direction by the first sleeve 13 and the second sleeve 14, and the connection structure 16 is arranged in the two mounting holes 15. The connection structure 16 includes a first connection member 161, a second connection member 162, and a third connection member 163, wherein the second connection member 162 is sleeved at one end of the first connection member 161 along the first direction, the third connection member 163 is sleeved at the other end of the first connection member 161 along the first direction, and the second connection member 162 is configured to have a predetermined elastic force at least along the radial direction of the mounting hole 15.

As such, the first sleeve 13 and the second sleeve 14 are connected by the connecting structure 16, and the first sleeve 13 is connected to the first member 11, and the second sleeve 14 is connected to the second member 12, so that the first member 11 is connected to the second member 12; by configuring the second connection member 162 of the connection structure 16 to have a predetermined elastic force at least in the radial direction of the mounting hole 15, the second connection member 162 can be mounted in the other mounting hole 15 by the predetermined elastic force, and the connection is simple and convenient.

With continued reference to fig. 1, the first member 11 and the second member 12 are both members made of concrete, and the first sleeve 13 and the second sleeve 14 are connected to the first member 11 and the second member 12, respectively, at a side remote from each other, that is, the first sleeve 13 is connected to the first member 11 at a side remote from the second sleeve 14, and the second sleeve 14 is connected to the second member 12 at a side remote from the first sleeve 13. The first sleeve 13 and the second sleeve 14 are respectively provided with mounting holes 15 which are coaxially arranged and mutually communicated along the first direction, one of the mounting holes 15 penetrates through the first sleeve 13 along the first direction, the other mounting hole 15 penetrates through the second sleeve 14 along the first direction, the apertures of the two mounting holes 15 are the same, and the side wall of each mounting hole 15 is provided with a first engagement part 151.

Thus, by providing the first sleeve 13 and the second sleeve 14 so that the first member 11 and the second member 12 are connected by the first sleeve 13 and the second sleeve 14 being connected with the connecting structure 16, the difficulty in connecting the first member 11 and the second member 12 is reduced; by providing the mounting hole 15 penetrating in the first direction, the connection structure 16 is mounted; the first engagement portions 151 are provided on the side wall of each mounting hole 15 to improve the connection strength of the connection structure 16 with the first and

second sleeves

13 and 14, thereby improving the reliability of connection.

Fig. 2 is a schematic structural diagram of a first connecting member according to an embodiment of the utility model.

Referring to fig. 1 and 2, the first connecting member 161 is integrally in a revolving structure, the first connecting member 161 includes a first connecting section 1611 and a second connecting section 1612 that are sequentially connected, and a first clamping portion 1611a is disposed on an outer peripheral surface of the first connecting section 1611. The third connecting piece 163 is sleeved on the first connecting section 1611 and is installed in one of the installation holes 15, and the second connecting piece 162 is sleeved on the second connecting section 1612 and is installed in the other installation hole 15.

FIG. 3 is a schematic diagram illustrating a structure of a second connecting member according to an embodiment of the utility model; fig. 4 is a schematic top view of the second connector of fig. 3 according to the present utility model.

Referring to fig. 3 and 4, and referring to fig. 1, the second connecting member 162 is integrally formed as a solid of revolution, the second connecting member 162 is sleeved on the second connecting section 1612 of the first connecting member 161, and the second connecting member 162 is configured to have a predetermined elastic force at least along the radial direction of the mounting hole 15, so that the second connecting member 162 can be mounted in the other mounting hole 15 by means of the predetermined elastic force. The outer circumferential surface of the second connecting member 162 is provided with a second engagement portion 1621 corresponding to the first engagement portion 151, and the second engagement portion 1621 is capable of being engaged with its corresponding first engagement portion 151 to restrict the degree of freedom of the second connecting member 162 in the first direction.

In this way, by configuring the second connecting member 162 to have a predetermined elastic force, the second connecting member 162 can be mounted in the other mounting hole 15 by the predetermined elastic force, so that the second connecting member 162 is easy to mount and reliable to connect; by providing the first engagement portion 151 and the second engagement portion 1621 that are engaged with each other, the degree of freedom of the second connecting member 162 in the first direction is restricted, the pulling resistance of the second connecting member 162 is enhanced, and the connection reliability of the second connecting member 162 is improved.

Referring to fig. 1, in some embodiments, the inner circumferential surface of the second connector 162 and the outer circumferential surface of the second connector segment 1612 collectively define a gap in the radial direction of the mounting bore 15. In this way, by arranging the second connecting member 162 and the second connecting section 1612 at intervals, the gap can provide space for the deformation of the second connecting member 162, so that the second connecting member 162 can be smoothly mounted, and when a plurality of connecting structures 16 are required to be arranged along the circumferential direction of the mounting hole 15 to connect the first member 11 and the second member 12, the gap can be used for counteracting the accuracy error of the mounting hole 15, thereby ensuring that all the connecting structures 16 can be smoothly mounted.

Referring to fig. 3 and 4, specifically, the second connecting member 162 is provided with at least one opening extending along a radial direction of the mounting hole 15, and the at least one opening extends through at least one end of the second connecting member 162 along the first direction, so that the second connecting member 162 has a predetermined elastic force along at least the radial direction of the mounting hole 15.

Referring to fig. 3 and 4, in some embodiments, the second connecting member 162 is provided with at least one first opening 1625, and the at least one first opening 1625 penetrates through an end of the second connecting member 162 remote from the first connecting section 1611. Optionally, the second connecting member 162 is provided with a plurality of first openings 1625, and all the first openings 1625 are spaced apart along the circumferential direction of the mounting hole 15. In this manner, the mounting of the second connector 162 is facilitated by providing a plurality of first openings 1625 to increase the deformability of the second connector 162 in the radial direction of the mounting hole 15.

Referring to fig. 3 and 4, in some embodiments, the second connecting member 162 is provided with at least one second opening 1626, and the at least one second opening 1626 penetrates through an end of the second connecting member 162 near the first connecting section 1611; the first and

second openings

1625 and 1626 are alternately arranged along the circumferential direction of the mounting hole 15. Optionally, the second connecting member 162 is provided with a plurality of second openings 1626, all the second openings 1626 are disposed at intervals along the circumferential direction of the mounting hole 15, and any one of the first openings 1625 and any one of the second openings 1626 are not overlapped along the circumferential direction of the mounting hole 15, so as to avoid the second connecting member 162 from being disconnected along the circumferential direction of the mounting hole 15. In this manner, by providing the plurality of first and

second openings

1625 and 1626, the deformability of the second connection member 162 in the radial direction of the mounting hole 15 can be increased, thereby making the second connection member 162 easier to install.

FIG. 5 is a schematic structural view of a third connecting member according to an embodiment of the present utility model; fig. 6 is a schematic top view of the third connector of fig. 5 according to the present utility model.

Referring to fig. 5 and 6, and referring to fig. 1, the third connecting member 163 is integrally formed as a solid of revolution structure, the outer circumferential surface of the first connecting section 1611 is provided with a first clamping portion 1611a, the inner circumferential surface of the third connecting member 163 is provided with a second clamping portion 1631 corresponding to the first clamping portion 1611a, and the first clamping portion 1611a and the second clamping portion 1631 can cooperate with each other to limit the degree of freedom of the third connecting member 163 and the second connecting member 162 in the first direction. The outer circumferential surface of the third link 163 is provided with a third engagement portion 1632 corresponding to the first engagement portion 151, and the third engagement portion 1632 can be engaged with its corresponding first engagement portion 151 to restrict the degree of freedom of the third link 163 in the first direction.

In this way, by providing the first and second engaging

portions

1611a and 1631 that are engaged with each other and by providing the first and third

engaging portions

151 and 1632 that are engaged with each other, the degree of freedom of the third connecting piece 163 in the first direction is restricted, and the connection strength and reliability of connection can be improved.

It should be noted that, in any of the above embodiments, since the first engaging portions 151 formed on the side walls of the two mounting holes 15 are the same, and the first engaging portion 151 of one mounting hole 15 is matched with the second engaging portion 1621 when the first engaging portions 151 are the same, and the first engaging portion 151 of the other mounting hole 15 is matched with the third engaging portion 1632, it is understood that the mounting positions of the second connecting member 162 and the third connecting member 163 may be interchanged, that is, the second connecting member 162 is mounted in the mounting hole 15 formed on the first sleeve 13, the third connecting member 163 is mounted in the mounting hole 15 formed on the second sleeve 14, and at this time, the direction of the second connecting section 1612 pointing to the first connecting section 1611 is the first direction; alternatively, the second connecting member 162 is mounted in the mounting hole 15 formed in the second sleeve 14, and the third connecting member 163 is mounted in the mounting hole 15 formed in the first sleeve 13, where the direction of the first connecting section 1611 pointing to the second connecting section 1612 is the first direction.

Referring to fig. 1 to 3, in some embodiments, the first connecting member 161 further includes a limiting portion 1613 connected to a side of the second connecting section 1612 away from the first connecting section 1611, where the limiting portion 1613 has a first limiting surface 1613a. The end of the second connecting member 162, which is far away from the first connecting section 1611, has a second limiting surface 1622 abutting against the first limiting surface 1613a, and an inner contour of the orthographic projection of the first limiting surface 1613a on the reference surface is located within an outer contour of the orthographic projection of the second limiting surface 1622 on the reference surface. Wherein the reference plane is a plane perpendicular to the first direction.

Thus, by providing the limiting portion 1613, the limiting portion 1613 is used to support the second connecting piece 162, so as to prevent the second connecting piece 162 from sliding off the second connecting section 1612 of the first connecting piece 161; by providing the first and second limiting

surfaces

1613a and 1622 that abut against each other, a component force is provided to the second connecting member 162 in a radial direction of the mounting hole 15, so that the pulling resistance of the second connecting member 162 is improved, and the connection reliability is improved.

Referring to fig. 1 and 2, in some embodiments, the first limiting surface 1613a has a first edge 1613b and a second edge 1613c that are disposed around the second connecting section 1612, and the first edge 1613b is closer to the second connecting section 1612 than the second edge 1613 c. In a first direction, the first edge 1613b is located upstream of the second edge 1613c, and a direction in which the first edge 1613b points toward the second edge 1613c is disposed at an angle to the first direction.

Referring to fig. 1 and 3, in some embodiments, the second limiting surface 1622 has a third edge 1623 and a fourth edge 1624 surrounding the second connecting segment 1612, and the third edge 1623 is closer to the second connecting segment 1612 than the fourth edge 1624. In the first direction, the third edge 1623 is located upstream of the fourth edge 1624, the direction in which the third edge 1623 points toward the fourth edge 1624 being disposed at an angle to the first direction.

Referring to fig. 1, in some embodiments, the direction in which the first edge 1613b points toward the second edge 1613c is parallel to the direction in which the third edge 1623 points toward the fourth edge 1624.

Referring to fig. 1, in some embodiments, the prefabricated structure 10 further includes two protective shells 17 disposed opposite in the first direction. One of the protective cases 17 is arranged between the first member 11 and the first sleeve 13 and is used for protecting the mounting hole 15 formed in the first sleeve 13; another protective shell 17 is provided between the second member 12 and the second sleeve 14 for protecting the mounting hole 15 provided in the second sleeve 14.

In this way, by providing the protective cases 17, one of which separates the mounting holes 15 opened by the first member 11 and the first sleeve 13, and the other protective case 17 separates the mounting holes 15 opened by the second member 12 and the second sleeve 14, concrete or the like of the first member 11 and the second member 12 is prevented from falling into the mounting holes 15, affecting the reliability of connection.

Further, each of the protective cases 17 includes a protective case body 171 and a mounting portion 172 connected to the protective case body 171. The mounting portion 172 of one of the protective cases 17 is connected to a side of the first sleeve 13 away from the second sleeve 14 in the first direction, the mounting portion 172 of the other protective case 17 is connected to a side of the second sleeve 14 away from the first sleeve 13 in the first direction, each of the protective case bodies 171 is provided with a cavity 173, each cavity 173 communicates with the mounting hole 15 corresponding to the mounting portion 172, and an inner contour of an orthographic projection of the mounting portion 172 on the reference surface is located outside an inner contour of an orthographic projection of the first sleeve 13 on the reference surface. Wherein the reference plane is a plane perpendicular to the first direction.

In this way, by providing the cavity 173, the installation of the connection structure 16 is facilitated, and the installation space can be reserved for the limiting portion 1613 of the first connector 161.

In some embodiments, protective shell body 171 has a fifth edge and a sixth edge, the sixth edge being connected to mounting portion 172; the fifth edge is located upstream of the sixth edge in the first direction, and a direction in which the fifth edge points to the sixth edge is disposed at an angle to the first direction.

It can be appreciated that in the embodiment provided herein, the first clamping portion 1611a, the second clamping portion 1631, the first engaging portion 151, the second engaging portion 1621, and the third engaging portion 1632 may be screw threads, and the first clamping portion 1611a and the second clamping portion 1631 have the same size, and the first engaging portion 151, the second engaging portion 1621, and the third engaging portion 1632 have the same size. Of course, the shape structures of the first engaging portion 1611a, the second engaging portion 1631, the first engaging portion 151, the second engaging portion 1621, and the third engaging portion 1632 are not limited to screw threads, and may be other shape structures, and are not limited thereto.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A prefabricated structure, comprising:

2. The prefabricated structure according to claim 1, wherein the outer peripheral surface of the first connecting section is provided with a first clamping portion, and the inner peripheral surface of the third connecting member is provided with a second clamping portion corresponding to the first clamping portion;

3. The prefabricated structure according to claim 1, wherein a first engagement portion is provided on a side wall of each mounting hole, a second engagement portion corresponding to the first engagement portion is provided on an outer peripheral surface of the second connecting member, and a third engagement portion corresponding to the first engagement portion is provided on an outer peripheral surface of the third connecting member;

4. The prefabricated structure according to claim 1, wherein the first connecting member further comprises a limiting portion connected to a side of the second connecting section remote from the first connecting section, the limiting portion having a first limiting surface; one end of the second connecting piece, which is far away from the first connecting section, is provided with a second limiting surface which is propped against the first limiting surface;

5. The preformed structure of claim 4, wherein the first stop surface has a first edge and a second edge looped around the second connecting section, the first edge being closer to the second connecting section than the second edge; in the first direction, the first edge is located upstream of the second edge, and a direction in which the first edge points to the second edge is disposed at an angle to the first direction.

6. The preformed structure of claim 5, wherein the second limiting surface has a third edge and a fourth edge looped around the second connecting section, the third edge being closer to the second connecting section than the fourth edge; in the first direction, the third edge is located upstream of the fourth edge, and the direction in which the third edge points to the fourth edge is arranged at an angle to the first direction.

7. The preformed structure of claim 6, wherein the direction in which the first edge points to the second edge is parallel to the direction in which the third edge points to the fourth edge.

8. The prefabricated structure according to any one of claims 1-7, wherein said second connector is provided with at least one opening extending therethrough in a radial direction of said mounting hole, at least one of said openings extending through at least one end of said second connector in said first direction.

9. The preformed structure of claim 8, wherein the second connector defines at least one first opening therethrough at an end of the second connector remote from the first connector section.

10. The prefabricated structure according to claim 9, wherein the second connector is provided with at least one second opening, at least one of the second openings penetrating through an end of the second connector adjacent to the first connector section;

11. The preformed structure of any one of claims 1 to 7, further comprising two protective shells disposed opposite in the first direction;

12. The prefabricated structure according to claim 11, wherein each of the protective shells includes a protective shell body and a mounting portion connected to the protective shell body;

13. The preformed structure of claim 12, wherein the protective shell body has a fifth edge and a sixth edge, the sixth edge connecting the mounting portion; along the first direction, the fifth edge is located upstream of the sixth edge, and the direction of the fifth edge pointing to the sixth edge is arranged at an angle with respect to the first direction.