CN220318790U - Connection structure and building connection system - Google Patents

Abstract

The application relates to a connection structure and building connection system, connection structure are used for connecting first structure and second structure, and first structure has the mounting hole that extends along first direction, and connection structure includes: a connecting rod having a first section and a second section disposed opposite in a first direction; the elastic sleeve is sleeved outside the first section, the second section is matched with the second structural member, and the elastic sleeve is inserted into the mounting hole; the elastic sleeve is provided with a bottom, a middle and a top which are mutually connected along a first direction, the outer diameter of at least the bottom in the bottom and the top is smaller than that of the middle, and the middle is connected with the inner wall of the mounting hole in a matched mode. The elastic sleeve is sleeved into the mounting hole gradually, because the outer diameter of the bottom of the elastic sleeve is smaller, the elastic sleeve cannot be extruded and deformed with teeth on the wall of the mounting hole, the bottom of the elastic sleeve cannot be extruded in the downward moving process, the bottom of the elastic sleeve is prevented from being broken after being extruded and deformed frequently, and the service life of the elastic sleeve is prolonged.

Description

Connection structure and building connection system

Technical Field

The present application relates to the field of building connection technology, and in particular, to a connection structure and a building connection system.

Background

The connecting structure is a common structure, and can connect two components. In some connecting structures, the connecting rod is sleeved with an elastic sleeve, and is matched and connected with the to-be-connected piece through elastic contraction of the elastic sleeve. However, conventional elastomeric sleeves have a relatively short service life.

Disclosure of Invention

Based on this, it is necessary to provide a connection structure and a building connection system for solving the problem that the service life of the conventional elastic sleeve is short.

A connection structure for connecting a first structural member and a second structural member, the first structural member having a mounting hole extending in a first direction, the connection structure comprising:

a connecting rod having a first section and a second section disposed opposite in the first direction;

the elastic sleeve is sleeved outside the first section, the second section is matched with the second structural member, and the elastic sleeve is inserted into the mounting hole;

the elastic sleeve is provided with a bottom, a middle and a top which are mutually connected along the first direction, the outer diameter of at least the bottom in the bottom and the top is smaller than the outer diameter of the middle, and the middle is connected with the inner wall of the mounting hole in a matched mode.

The connecting structure comprises a connecting rod and an elastic sleeve, wherein the elastic sleeve is sleeved outside the first section of the connecting rod, the second section of the connecting rod is matched with the second structural member, and the elastic sleeve is sleeved in the mounting hole of the first structural member, so that the first structural member and the second structural member are connected through the connecting structure. And, the external diameter of at least the bottom in the bottom and the top of elastic sleeve is less than the external diameter of middle part, and the external diameter of elastic sleeve bottom is less. In the process that the elastic sleeve is sleeved into the mounting hole gradually, the bottom of the elastic sleeve moves from the top end to the bottom end of the mounting hole, extrusion deformation cannot occur between the elastic sleeve and teeth on the wall of the mounting hole because of smaller outer diameter of the bottom of the elastic sleeve in the downward moving process, extrusion force cannot be received by the bottom of the elastic sleeve in the downward moving process, the bottom of the elastic sleeve is protected, the situation that the bottom of the elastic sleeve is broken after being extruded and deformed frequently is prevented, and the service life of the elastic sleeve is prolonged.

In one embodiment, the elastic sleeve is provided with a first shrinkage opening and a second shrinkage opening which are radially penetrating through the elastic sleeve, the bottom is directed in the direction of the top, one end of the elastic sleeve with the bottom is provided with the first shrinkage opening, the top is directed in the direction of the bottom, and one end of the elastic sleeve with the top is provided with the second shrinkage opening.

In one embodiment, the width of the first constricted opening is greater than the width of the second constricted opening in the circumferential direction of the elastic sleeve.

In one embodiment, the elastic sleeve is provided with a third shrinkage opening penetrating the elastic sleeve in the radial direction and the axial direction.

In one embodiment, the width of the third constricting opening increases gradually in the direction from the top to the bottom.

In one embodiment, the elastic sleeve comprises a cylinder portion and a connecting portion, the cylinder portion comprises a third section, a fourth section and a fifth section corresponding to the bottom, the middle and the top, the connecting portion is arranged on the periphery of at least the fourth section, and the connecting portion is connected with the inner wall of the mounting hole in a matched mode.

In one embodiment, the connecting portion is not provided on the outer peripheral side of the third section; or alternatively

The mounting hole comprises a first hole section and a second hole section which are axially arranged along the mounting hole and are mutually communicated, and the diameter of the first hole section is smaller than that of the second hole section;

the outer peripheral sides of the third section and the fourth section are respectively provided with a connecting part, and the outer diameter of the connecting part at the outer peripheral side of the third section is smaller than that of the connecting part at the outer peripheral side of the fourth section; the connecting part on the outer periphery side of the third section is connected and matched with the inner wall of the first hole section, and the connecting part on the outer periphery side of the fourth section is connected and matched with the inner wall of the second hole section.

In one embodiment, the connecting portion is not provided on the outer peripheral side of each of the third and fifth segments; or alternatively

The connecting part is not arranged on the outer peripheral side of the fifth section, connecting parts are arranged on the outer peripheral sides of the third section and the fourth section, and the outer diameter of the connecting part on the outer peripheral side of the third section is smaller than that of the connecting part on the outer peripheral side of the fourth section;

the mounting hole comprises a first hole section and a second hole section which are axially arranged along the mounting hole and are mutually communicated, and the diameter of the first hole section is smaller than that of the second hole section; the connecting part on the outer periphery side of the third section is connected and matched with the inner wall of the first hole section, and the connecting part on the outer periphery side of the fourth section is connected and matched with the inner wall of the second hole section.

In one embodiment, the inner wall of the mounting hole is provided with a first tooth;

the connecting part comprises a second tooth which is arranged on the periphery of the cylinder body and corresponds to the first tooth, and the connecting part is connected with the inner wall of the mounting hole by means of the engagement of the second tooth and the first tooth.

In one embodiment, each of the second teeth has a pointing plane facing away from the bottom of the elastic sleeve; wherein:

each of the pointing planes extends in a radial direction of the barrel portion; or alternatively, the first and second heat exchangers may be,

each pointing plane extends obliquely towards the bottom, and an included angle between each pointing plane and the radial direction of the cylinder body is a, wherein a is more than 0 degrees and less than or equal to 10 degrees; or alternatively, the first and second heat exchangers may be,

each pointing plane extends obliquely towards the top, and an included angle between each pointing plane and the radial direction of the cylinder body is b, wherein b is more than 0 degrees and less than or equal to 30 degrees.

In one embodiment, the connection comprises a second toothing, which is configured as a screw toothing or as a ring toothing.

In one embodiment, the connecting structure further comprises a pre-assembly, a limiting portion is arranged at one end, far away from the second section, of the first section, the pre-assembly is sleeved outside the second section and used for being matched with the second structural member, and the elastic sleeve is limited between the pre-assembly and the limiting portion along the axial direction of the elastic sleeve.

A building connection system comprises two prefabricated members and the connection structure;

the first structural component and the second structural component are respectively embedded in the two prefabricated components, and the connecting structure is used for connecting the two prefabricated components through the first structural component and the second structural component.

Drawings

FIG. 1 is an exploded schematic view of a building attachment system according to one embodiment of the present application;

FIG. 2 is an assembled schematic view of the building attachment system of FIG. 1;

FIG. 3 is a schematic view of the construction of the flexible sleeve of the building attachment system of FIG. 1;

FIG. 4 is a schematic view of an elastic sleeve according to another embodiment of the present application;

FIG. 5 is a top view of the elastomeric sleeve of FIG. 3;

FIG. 6 is a bottom view of the elastomeric sleeve of FIG. 3;

FIG. 7 is a schematic view of an elastic sleeve according to another embodiment of the present application;

FIG. 8 is a schematic cross-sectional view of the elastomeric sleeve of FIG. 7;

FIG. 9 is an exploded schematic view of a building attachment system according to another embodiment of the present application;

FIG. 10 is an assembled schematic view of the building attachment system of FIG. 9;

FIG. 11 is a schematic view of a second tooth according to an embodiment of the present disclosure;

FIG. 12 is a schematic view of a second tooth according to another embodiment of the present application;

FIG. 13 is a schematic view of a second tooth according to another embodiment of the present application;

FIG. 14 is a schematic view of a construction of a building attachment system according to yet another embodiment of the present application;

FIG. 15 is an assembled schematic view of the building attachment system of FIG. 14;

FIG. 16 is a schematic view of the construction of the resilient sleeve of the building attachment system of FIG. 14;

FIG. 17 is a schematic view of a connecting structure according to another embodiment of the present disclosure;

fig. 18 is an assembly schematic view of the connecting structure shown in fig. 17 and the first structural member and the second structural member.

Reference numerals illustrate: 100. a connection structure; 10. a connecting rod; 12. a first section; 14. a second section; 30. an elastic sleeve; 31. a cylinder body; 312. a third section; 314. a fourth section; 316. a fifth section; 32. a bottom; 33. a connection part; 331. a second tooth; 333. pointing to a plane; 34. a middle part; 36. a top; 42. a first constricting opening; 44. a second constricting opening; 46. a third constricting opening; 50. a package; 200. a first structural member; 210. a mounting hole; 211. a first bore section; 213. a second bore section; 215. a first tooth; 300. a second structural member; 400. a building connection system.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "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 orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

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 application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated 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 terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, 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.

The connecting structure is a common structure, and can connect two components. In some connecting structures, the connecting rod is sleeved with an elastic sleeve, and is matched and connected with the to-be-connected piece through elastic contraction of the elastic sleeve.

The conventional elastic sleeve is generally configured as a cylinder, and an opening extending along the axial direction of the elastic sleeve is formed in the elastic sleeve, so that the elastic sleeve can elastically shrink in the radial direction of the elastic sleeve. In the installation process of the traditional elastic sleeve, axial limit fit is carried out through the fit of teeth on the periphery of the elastic sleeve and teeth on the inner wall of the installation hole on the to-be-connected piece, so that the anti-pulling effect is ensured. However, when the elastic sleeve gradually enters the mounting hole, the lower end of the elastic sleeve moves from the top end to the bottom end of the mounting hole, the whole process can be extruded and deformed by the teeth, the stress of the lower end of the elastic sleeve is concentrated, the situation such as fracture easily occurs, and the service life of the elastic sleeve can be further influenced.

In view of this, this application provides a connection structure, aims at solving the problem that elastic sleeve life is shorter among the traditional connection structure. The inventor of this application starts from increasing elastic sleeve lower extreme intensity, has designed a connection structure for elastic sleeve's the foreest lower extreme does not participate in deformation extrusion in the installation in-process whole journey, reduces elastic sleeve lower extreme and receives the extrusion, protects elastic sleeve's lower extreme, and then improves elastic sleeve's life.

Referring to fig. 1-2, in accordance with some embodiments of the present application, a connection structure 100 is provided for connecting a first structural member 200 and a second structural member 300, the first structural member 200 having a mounting hole 210 extending in a first direction. The connecting structure 100 includes a connecting rod 10 and an elastic sleeve 30, the connecting rod 10 has a first section 12 and a second section 14 disposed opposite to each other along a first direction, the elastic sleeve 30 is sleeved outside the first section 12, the second section 14 is coupled with the second structural member 300, and the elastic sleeve 30 is inserted into the mounting hole 210 of the first structural member 200. The elastic sleeve 30 has a bottom 32, a middle 34 and a top 36 connected to each other along a first direction, at least the outer diameter of the bottom 32 and the outer diameter of the top 36 are smaller than the outer diameter of the middle 34, and the middle 34 is connected to the inner wall of the mounting hole 210 in a matching manner.

The connecting structure 100 comprises a connecting rod 10 and an elastic sleeve 30, the elastic sleeve 30 is sleeved outside the first section 12 of the connecting rod 10, the second section 14 of the connecting rod 10 is matched with the second structural member 300, and the elastic sleeve 30 is sleeved in the mounting hole 210 of the first structural member 200, so that the first structural member 200 and the second structural member 300 are connected through the connecting structure 100. And, at least the bottom portion 32 of the elastomeric sleeve 30 and the top portion 36 have an outer diameter that is smaller than the outer diameter of the middle portion 34, and the bottom portion 32 of the elastomeric sleeve 30 has a smaller outer diameter. In the process that the elastic sleeve 30 is gradually sleeved into the mounting hole 210, the bottom 32 of the elastic sleeve 30 moves from the top end to the bottom end of the mounting hole 210, extrusion deformation cannot occur between the bottom 32 of the elastic sleeve 30 and teeth on the wall of the mounting hole 210 because of smaller outer diameter of the bottom 32 of the elastic sleeve 30 in the downward moving process, extrusion force cannot be applied to the bottom 32 of the elastic sleeve 30 in the downward moving process, the bottom 32 of the elastic sleeve 30 is protected, the situation that the bottom 32 of the elastic sleeve 30 is broken after being extruded and deformed frequently is prevented, and the service life of the elastic sleeve 30 is prolonged.

Further, there is a gap between the elastic sleeve 30 and the first section 12 of the connecting rod 10, which provides a space for the elastic sleeve 30 to contract, thereby ensuring that the elastic sleeve 30 can be smoothly inserted into the mounting hole 210 of the first structural member 200.

Referring to fig. 3, according to some embodiments of the present application, the elastic sleeve 30 is provided with a first shrinkage opening 42 and a second shrinkage opening 44 that are disposed radially through the elastic sleeve 30, the end of the elastic sleeve 30 having the bottom 32 is provided with the first shrinkage opening 42 along the direction of the bottom 32 pointing to the top 36, and the end of the elastic sleeve 30 having the top 36 is provided with the second shrinkage opening 44 along the direction of the top 36 pointing to the bottom 32. In this way, the bottom 32 and the top 36 of the elastic sleeve 30 are respectively provided with the first shrinkage opening 42 and the second shrinkage opening 44, the first shrinkage opening 42 and the second shrinkage opening 44 are arranged in a staggered manner in the circumferential direction of the elastic sleeve 30, and the first shrinkage opening 42 and the second shrinkage opening 44 do not penetrate through the elastic sleeve 30 in the axial direction of the elastic sleeve 30, so that the elastic sleeve 30 is divided into multiple pieces spaced from each other through the first shrinkage opening 42 and the second shrinkage opening 44, the elastic sleeve 30 is provided with contractible elasticity, and the elastic sleeve 30 can shrink inwards after being extruded.

Optionally, the sum of the lengths of the first shrinkage opening 42 and the second shrinkage opening 44 in the axial direction of the elastic sleeve 30 is greater than or equal to the length of the elastic sleeve 30, so that the elastic sleeve 30 has shrinkage elasticity in its axial direction as a whole, so that the elastic sleeve 30 is inserted into the mounting hole 210.

Referring to fig. 4, further, the width of the first constricted opening 42 is greater than the width of the second constricted opening 44 in the circumferential direction of the elastic sleeve 30. Since the bottom 32 of the elastic sleeve 30 needs to be deeper into the mounting hole 210 during the process of incorporating the elastic sleeve 30 into the mounting hole 210 of the first structural member 200, the shrinkage pressure and time to be received are longer, and thus, a greater shrinkage capability is required. In particular, when the elastic sleeve 30 has teeth on the outer periphery, the elastic sleeve 30 is repeatedly contracted and rebounded, and the bottom 32 of the elastic sleeve 30 is contracted and rebounded more times than the top 36, so that it is required to make the end of the elastic sleeve 30 having the bottom 32 have better elasticity. Further, the width of the first shrinkage opening 42 is larger than the width of the second shrinkage opening 44 in the circumferential direction of the elastic sleeve 30, so that more deformation shrinkage space is provided for the end of the elastic sleeve 30 having the bottom 32, and the elasticity of the end of the elastic sleeve 30 having the bottom 32 is improved.

Referring to fig. 5-6, alternatively, the number of first shrinkage openings 42 is greater than the number of second shrinkage openings 44, so that the end of the elastic sleeve 30 having the bottom 32 has more shrinkage space, and the end of the elastic sleeve 30 having the bottom 32 is more elastic, so that the elastic sleeve 30 is inserted into the mounting hole 210.

Referring to fig. 7-8, according to some embodiments of the present application, the elastic sleeve 30 is provided with a third shrinkage opening 46 that penetrates the elastic sleeve 30 in both the radial direction and the axial direction. In this way, the third shrinkage opening 46 penetrating the elastic sleeve 30 in the axial direction is formed, the cross section of the elastic sleeve 30 is C-shaped, and the elastic sleeve 30 can have the elasticity of radial shrinkage by one third shrinkage opening 46.

Further, the width of the third constricted opening 46 gradually increases in the direction from the top 36 to the bottom 32 of the elastic sleeve 30. Since the bottom 32 of the elastic sleeve 30 needs to be deeper into the mounting hole 210 during the process of incorporating the elastic sleeve 30 into the mounting hole 210 of the first structural member 200, the shrinkage pressure and time to be received are longer, and thus, a greater shrinkage capability is required.

In particular, when the elastic sleeve 30 has teeth on the outer periphery, the elastic sleeve 30 is repeatedly contracted and rebounded, and the bottom 32 of the elastic sleeve 30 is contracted and rebounded more times than the top 36, so that it is required to make the end of the elastic sleeve 30 having the bottom 32 have better elasticity. Further, the width of the third shrinkage opening 46 gradually increases along the direction from the top 36 to the bottom 32 of the elastic sleeve 30, so as to provide more deformation shrinkage space for the end of the elastic sleeve 30 having the bottom 32, and improve the elasticity of the end of the elastic sleeve 30 having the bottom 32.

Referring to fig. 9-10, the elastic sleeve 30 includes a cylindrical body 31 and a connecting portion 33, the cylindrical body 31 includes a third section 312, a fourth section 314 and a fifth section 316 corresponding to the bottom 32, the middle 34 and the top 36, at least the outer periphery of the fourth section 314 is provided with the connecting portion 33, and the connecting portion 33 is connected with the inner wall of the mounting hole 210 in a matching manner. In this way, the connecting portion 33 is provided in at least the fourth section 314 of the tubular body 31, and the elastic sleeve 30 is connected to the first structural member 200 by the fitting connection between the connecting portion 33 and the inner wall of the mounting hole 210.

Further, the inner wall of the mounting hole 210 is provided with a first tooth 215, the connection portion 33 includes a second tooth 331 provided on the outer periphery of the cylindrical body 31 and corresponding to the first tooth 215, and the connection portion 33 is connected to the inner wall of the mounting hole 210 by engagement of the second tooth 331 and the first tooth 215. In this way, the elastic sleeve 30 is pressed against each other during the insertion of the first teeth 215 and the second teeth 331 into the mounting hole 210, and the elastic sleeve 30 is contracted and elastically bounced by the pressing of the teeth, so that the first teeth 215 and the second teeth 331 are engaged with each other, thus coupling the connection portion 33 to the inner wall of the mounting hole 210.

Referring to fig. 11-13, in accordance with some embodiments of the present application, each second tooth 331 has a pointing plane 333 facing away from the bottom 32 of the elastomeric sleeve 30. It can be appreciated that the top surface of the second teeth 331 facing away from the bottom 32 of the elastic sleeve 30 is a pointing plane 333, and the extending direction of the pointing plane 333 is the extending direction of the second teeth 331.

According to some embodiments of the present application, each of the orientation flats 333 extends radially of the barrel 31.

Referring to fig. 11, in practical application, the first teeth 215 are generally disposed along a radial extension of the mounting hole 210. When each of the pointing planes 333 extends along the radial direction of the barrel 31, the extending direction of each of the second teeth 331 is more consistent with the radial direction of the barrel 31. At this time, the extending directions of the first teeth 215 and the second teeth 331 are substantially the same, so that the degree of collision and extrusion between the second teeth 331 and the first teeth 215 is relatively moderate when the elastic sleeve 30 is inserted into the mounting hole 210 of the first structural member 200. This makes it not too difficult to insert the elastic sleeve 30 into the mounting hole 210, and the connection strength between the first teeth 215 and the second teeth 331 is also moderate when the first structural member 200 or the elastic sleeve 30 is subjected to an external force, so that the connection between the elastic sleeve 30 and the first structural member 200 can withstand a large impact.

Referring to FIG. 12, in another embodiment of the present application, each of the orientation flat 333 extends obliquely toward the bottom 32, and the angle between each of the orientation flat 333 and the radial direction of the barrel 31 is a, wherein 0 DEG < a < 10 deg.

The orientation flat 333 of each second tooth 331 is biased toward the base 32, while each first tooth 215 is disposed generally along the radial extension of the mounting hole 210. Therefore, in the present embodiment, the elastic sleeve 30 is less likely to collide and squeeze with the first teeth 215 when being inserted into the mounting hole 210 of the first structural member 200, which enables the elastic sleeve 30 to be relatively easily inserted into the mounting hole 210 for mounting, so that the mounting of the elastic sleeve 30 is more convenient. However, this also makes the strength of the connection between the first tooth 215 and the second tooth 331 relatively low when the first structural member 200 or the elastic sleeve 30 is subjected to an external force, so that the connection between the elastic sleeve 30 and the first structural member 200 can withstand a limited impact, and therefore the angle at which each of the orientation planes 333 is deflected toward the bottom 32 cannot be too large, which would otherwise result in an unstable connection between the elastic sleeve 30 and the first structural member 200.

In general, the angle between each of the orientation planes 333 and the radial direction of the barrel 31 should be 10 ° or less. When the included angle between each pointing plane 333 and the radial direction of the barrel 31 is smaller than or equal to 10 °, the degree of collision and extrusion between the second teeth 331 and the first teeth 215 is smaller, the elastic sleeve 30 is convenient to install, and the connection strength between the first teeth 215 and the second teeth 331 is not too low, so that most of use requirements can be met.

Referring to FIG. 13, in yet another embodiment of the present application, each of the orientation flats 333 extends obliquely toward the second end 36, and the angle between each of the orientation flats 333 and the radial direction of the barrel 31 is b, where 0 < b.ltoreq.30.

The orientation flat 333 of each second tooth 331 is biased toward the second end 36, while each first tooth 215 is disposed generally along the radial extension of the mounting hole 210. Therefore, in the present embodiment, the elastic sleeve 30 is inserted into the mounting hole 210 of the first structural member 200, and the second teeth 331 collide with the first teeth 215 to a large extent, which makes it relatively difficult to insert the elastic sleeve 30 into the mounting hole 210 for mounting, and there is a certain obstruction to the mounting of the elastic sleeve 30. However, this also makes the strength of the connection between the first teeth 215 and the second teeth 331 relatively high when the first structural member 200 or the elastic sleeve 30 is subjected to an external force, so that the connection between the elastic sleeve 30 and the first structural member 200 can withstand a large impact. The angle at which each of the orientation flats 333 are deflected toward the second end 36 cannot be too great or otherwise render the installation of the elastomeric sleeve 30 too difficult or impossible.

In practical applications, the included angle between each of the pointing planes 333 and the radial direction of the barrel 31 should be 30 degrees or less. When the included angle between each of the pointing planes 333 and the radial direction of the barrel 31 is less than or equal to 30 °, the degree of collision and extrusion between the second teeth 331 and the first teeth 215 is not excessive, the elastic sleeve 30 can be installed, and the connection strength between the first teeth 215 and the second teeth 331 is relatively high, so that relatively more use requirements can be met.

The second teeth 331 are different in the above embodiments, so the elastic sleeve 30 can be adjusted and selected according to the application requirement.

Referring to fig. 11 to 13, in some embodiments, the connection portion 33 includes a second tooth 331, and the second tooth 331 is configured as a screw tooth or a ring tooth.

When the elastic sleeve 30 is inserted into the first structural member 200, the connection portion 33 is inserted into the mounting hole 210 in the first structural member 200 and connected with the sidewall of the mounting hole 210. In a specific application, the connection portion 33 includes a screw thread tooth or an annular tooth, and when the elastic sleeve 30 is inserted into the first structural member 200, the tooth can be connected with a side wall of the mounting hole 210, so that the connection between the first structural member 200 and the elastic sleeve 30 is more stable.

Referring to fig. 9-10, according to some embodiments of the present application, the connecting portion 33 is not disposed on the outer peripheral side of the third section 312 of the barrel 31, that is, the bottom 32 of the elastic sleeve 30 is equivalent to the bottom 32 of the elastic sleeve 30 being not disposed with the connecting portion 33, the bottom 32 of the elastic sleeve 30 is smaller in diameter, and the connecting portion 33 is not disposed, so that the bottom 32 of the elastic sleeve 30 is not in contact with the inner wall of the mounting hole 210 during the process of inserting the elastic sleeve 30 into the mounting hole 210, and is not subject to extrusion deformation, the bottom 32 of the elastic sleeve 30 is not involved in deformation, and the bottom 32 of the elastic sleeve 30 is prevented from being broken by repeated extrusion deformation during the process of sleeving the bottom 32 of the elastic sleeve 30 into the mounting hole 210, thereby improving the service life of the elastic sleeve 30.

Referring to fig. 14-16, according to another embodiment of the present application, the mounting hole 210 on the first structural member 200 includes a first hole section 211 and a second hole section 213 which are axially arranged along the first structural member and are communicated with each other, the first hole section 211 having a smaller diameter than the second hole section 213, and the mounting hole 210 is configured as a stepped hole.

The outer peripheral sides of the third section 312 and the fourth section 314 of the cylindrical portion 31 are provided with connecting portions 33, and the outer diameter of the connecting portion 33 of the outer peripheral side wall of the third section 312 is smaller than the outer diameter of the connecting portion 33 of the outer peripheral side of the fourth section 314, so that the outer diameter of the bottom portion 32 of the elastic sleeve 30 corresponding to the third section 312 is smaller than the outer diameter of the middle portion 34.

The connection portion 33 on the outer peripheral side of the third section 312 is connected to and engaged with the inner wall of the first hole section 211, and the connection portion 33 on the outer peripheral side of the fourth section 314 is connected to and engaged with the inner wall of the second hole section 213. Equivalently, after the elastic sleeve 30 is installed in place in the installation hole 210, the connecting portion 33 on the outer peripheral side of the third section 312 with a smaller outer diameter is matched with the inner wall of the first hole section 211 with a smaller diameter, that is, the bottom 32 with a smaller outer diameter on the elastic sleeve 30 is matched with the inner wall of the first hole section 211, and the connecting portion 33 on the outer peripheral side of the fourth section 314 with a larger outer diameter is matched with the inner wall of the second hole section 213 with a larger diameter, that is, the middle 34 with a larger outer diameter on the elastic sleeve 30 is matched with the inner wall of the second hole section 213, so that the matched connection between the elastic sleeve 30 and the inner wall of the installation hole 210 is realized.

In the process of installing the elastic sleeve 30 into the mounting hole 210, the bottom 32 of the elastic sleeve 30 with smaller outer diameter passes through the second hole section 213 with larger diameter first, and a gap exists between the bottom 32 and the second hole section 213, so that deformation is not involved, the bottom 32 of the elastic sleeve 30 cannot be extruded and deformed until the bottom 32 moves to the first hole section 211, and finally the bottom 32 is connected with the inner wall of the first hole section 211 in a matched manner. Thus, when the elastic sleeve 30 is gradually inserted into the mounting hole 210, the bottom 32 with a smaller outer diameter on the elastic sleeve 30 moves from the second hole section 213 to the first hole section 211, elastic deformation does not occur in the second hole section 213, elastic deformation occurs only in the first hole section 211, the whole process of the elastic sleeve cannot participate in extrusion deformation, the extrusion force applied to the bottom 32 of the elastic sleeve 30 is reduced, the bottom 32 of the elastic sleeve 30 is prevented from being broken, and the service life of the elastic sleeve 30 is prolonged.

Referring to fig. 1-3, according to other embodiments of the present application, a first shrinkage opening 42 and a second shrinkage opening 44 are formed in the elastic sleeve 30, which are disposed radially through the elastic sleeve 30, the first shrinkage opening 42 is formed at an end of the elastic sleeve 30 having the bottom 32 along the direction of the bottom 32 pointing to the top 36, and the second shrinkage opening 44 is formed at an end of the elastic sleeve 30 having the top 36 along the direction of the top 36 pointing to the bottom 32. In this way, the bottom 32 and the top 36 of the elastic sleeve 30 are respectively provided with the first shrinkage opening 42 and the second shrinkage opening 44, the first shrinkage opening 42 and the second shrinkage opening 44 are arranged in a staggered manner in the circumferential direction of the elastic sleeve 30, and the first shrinkage opening 42 and the second shrinkage opening 44 do not penetrate through the elastic sleeve 30 in the axial direction of the elastic sleeve 30, so that the elastic sleeve 30 is divided into multiple pieces spaced from each other through the first shrinkage opening 42 and the second shrinkage opening 44, the elastic sleeve 30 is provided with contractible elasticity, and the elastic sleeve 30 can shrink inwards to deform and rebound after being extruded.

That is, the elastic sleeve 30 is divided into multiple lobes by the first and second constricted openings 42 and 44, and the multiple lobes of the elastic sleeve 30 are elastically deformed root portions with the top portion 36 and the bottom portion 32.

Optionally, the sum of the lengths of the first shrinkage opening 42 and the second shrinkage opening 44 in the axial direction of the elastic sleeve 30 is greater than or equal to the length of the elastic sleeve 30, so that the elastic sleeve 30 has shrinkage elasticity in its axial direction as a whole, so that the elastic sleeve 30 is inserted into the mounting hole 210.

And, the external diameter of bottom 32 and top 36 on the elastic sleeve 30 is all less than the external diameter of middle part 34, namely the top 36 and the external diameter of bottom 32 that the elastic sleeve 30 was regarded as elastic deformation root shrink the setting, make the top 36 and the bottom 32 of elastic sleeve 30 not by extrusion deformation in the installation, the elastic deformation root of protection elastic sleeve 30 prevents elastic deformation root fracture of elastic sleeve 30, improves the life of elastic sleeve 30.

Specifically, in one embodiment, no connecting portion 33 is provided outside the third section 312 and the fifth section 316 of the barrel 31, and thus, only the fourth section 314 of the barrel 31 is provided with the connecting portion 33, so that the outer diameter of the middle portion 34 of the elastic sleeve 30 is larger than the outer diameters of the bottom portion 32 and the top portion 36. In the process of inserting the elastic sleeve 30 into the mounting hole 210, a space is reserved between the bottom 32 and the top 36 of the elastic sleeve 30 and the inner wall of the mounting hole 210, so that the elastic deformation root of the elastic sleeve 30 is protected, the elastic deformation root of the elastic sleeve 30 is prevented from cracking, and the service life of the elastic sleeve 30 is prolonged.

Specifically, in another embodiment, the connecting portion 33 is not disposed on the outer peripheral side of the fifth section 316, the connecting portions 33 are disposed on the outer peripheral sides of the third section 312 and the fourth section 314, and the outer diameter of the connecting portion 33 on the outer peripheral side of the third section 312 is smaller than the outer diameter of the connecting portion 33 on the outer peripheral side of the fourth section 314. In this way, the connecting portion 33 is not provided outside the fifth section 316 of the cylindrical body 31, and the connecting portion 33 having a smaller outer diameter is provided outside the third section 312, so that the outer diameters of the top portion 36 and the top portion 36 of the elastic sleeve 30 are smaller than the outer diameter of the middle portion 34. The mounting hole 210 on the first structural member 200 includes a first hole section 211 and a second hole section 213 which are axially arranged along the mounting hole and are mutually communicated, the diameter of the first hole section 211 is smaller than that of the second hole section 213, the connecting portion 33 on the outer peripheral side of the third section 312 is connected and matched with the inner wall of the first hole section 211, and the connecting portion 33 on the outer peripheral side of the fourth section 314 is connected and matched with the inner wall of the second hole section 213.

In the process of inserting the elastic sleeve 30 into the mounting hole 210, the bottom 32 of the elastic sleeve 30 with smaller outer diameter passes through the second hole section 213 with larger diameter first, and a gap exists between the bottom 32 and the second hole section 213, so that deformation is not involved, and the bottom 32 of the elastic sleeve 30 cannot be extruded and deformed until the bottom 32 moves to the first hole section 211 and finally is connected with the inner wall of the first hole section 211 in a matched manner. At the same time, when the top 36 of the elastic sleeve 30 with smaller outer diameter enters the second hole section 213, a gap exists between the top 36 and the second hole section 213, and deformation is not involved, and the elastic sleeve is not extruded. So, when the elastic sleeve 30 inserts the mounting hole 210 gradually, the bottom 32 with smaller external diameter on the elastic sleeve 30 moves from the second hole section 213 to the first hole section 211, elastic deformation does not occur in the second hole section 213, elastic deformation occurs only in the first hole section 211, the whole process of extrusion deformation is not involved, the extrusion force suffered by the bottom 32 of the elastic sleeve 30 is reduced, meanwhile, the top 36 of the elastic sleeve 30 is not involved in extrusion deformation, the bottom 32 and the top 36 of the elastic sleeve 30 are protected, the middle 34 of the elastic sleeve 30 is prevented from breaking when bending around the top 36 and the bottom 32 in the deformation process, and the service life of the elastic sleeve 30 is prolonged.

Referring to fig. 17-18, according to some embodiments of the present application, the connecting structure 100 further includes a pre-assembly 50, a limiting portion is disposed at an end of the connecting rod 10, which is far away from the second section 14, the first section 12 is sleeved with the elastic sleeve 30, the pre-assembly 50 is sleeved with the second section 14, and is used for being matched with the second structural member 300, and the elastic sleeve 30 is limited between the pre-assembly 50 and the limiting portion along its own axial direction. In this way, the elastic sleeve 30 is fixed on the connecting rod 10 in a limiting manner by matching the elastic sleeve 30 and the limiting portion, so that the connecting rod 10, the elastic sleeve 30 and the package 50 are combined into a whole. In the process of assembling the connection structure 100, one end of the assembled connection structure 100 can be matched with the first structural member 200, the other end of the assembled connection structure 100 is matched with the second structural member 300, so that the assembly can be completed, various components included in the connection structure 100 are not required to be assembled, and the installation procedure is simplified.

Specifically, in the process of installing the connection structure 100, the pre-assembly 50 and the second structural member 300 may be first coupled, and then the elastic sleeve 30 is inserted into the installation hole 210 of the first structural member 200, so that the installation operation may be completed, and the operation is simple and efficient.

According to some embodiments of the present application, the present application further provides a building connection system 400, which includes two prefabricated members and the connection structure 100 according to any one of the foregoing embodiments, wherein the two prefabricated members are respectively embedded with the first structural member 200 and the second structural member 300, and the connection structure 100 connects the two prefabricated members through the first structural member 200 and the second structural member 300.

One of the two prefabricated members is embedded with the first structural member 200, the other is embedded with the second structural member 300, the second section 14 of the connecting rod 10 in the connecting structure 100 is matched with the second structural member 300, and the second section 14 and the second structural member are directly connected in a threaded manner or are matched with other components such as the preassembly 50, and then the elastic sleeve 30 is inserted into the mounting hole 210 of the first structural member 200, so that the first structural member 200 and the second structural member 300 can be connected, and the two prefabricated members are further connected.

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 only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (13)

1. A connection structure for connecting a first structural member and a second structural member, the first structural member having a mounting hole extending in a first direction, the connection structure comprising:

a connecting rod having a first section and a second section disposed opposite in the first direction;

the elastic sleeve is sleeved outside the first section, the second section is matched with the second structural member, and the elastic sleeve is inserted into the mounting hole;

the elastic sleeve is provided with a bottom, a middle and a top which are mutually connected along the first direction, the outer diameter of at least the bottom in the bottom and the top is smaller than the outer diameter of the middle, and the middle is connected with the inner wall of the mounting hole in a matched mode.

2. The connecting structure according to claim 1, wherein the elastic sleeve is provided with a first shrinkage opening and a second shrinkage opening penetrating through the elastic sleeve in a radial direction, the first shrinkage opening is provided at one end of the elastic sleeve having the bottom along the direction of the bottom pointing to the bottom, and the second shrinkage opening is provided at one end of the elastic sleeve having the top along the direction of the top pointing to the bottom.

3. The connection structure according to claim 2, wherein a width of the first constricted opening is larger than a width of the second constricted opening in a circumferential direction of the elastic sleeve.

4. The connecting structure according to claim 1, wherein the elastic sleeve is provided with a third shrinkage opening penetrating the elastic sleeve in both radial and axial directions.

5. The connection according to claim 4, wherein the width of the third constricted opening gradually increases in the direction from the top to the bottom.

6. The connecting structure according to claim 2, wherein the elastic sleeve includes a cylindrical body portion including third, fourth and fifth sections corresponding to the bottom, the middle and the top, and a connecting portion provided at an outer periphery of at least the fourth section, the connecting portion being connected with an inner wall of the mounting hole in a fitting manner.

7. The connection structure according to claim 6, wherein the connection portion is not provided on an outer peripheral side of the third section; or alternatively

The mounting hole comprises a first hole section and a second hole section which are axially arranged along the mounting hole and are mutually communicated, and the diameter of the first hole section is smaller than that of the second hole section;

the outer peripheral sides of the third section and the fourth section are respectively provided with a connecting part, and the outer diameter of the connecting part at the outer peripheral side of the third section is smaller than that of the connecting part at the outer peripheral side of the fourth section; the connecting part on the outer periphery side of the third section is connected and matched with the inner wall of the first hole section, and the connecting part on the outer periphery side of the fourth section is connected and matched with the inner wall of the second hole section.

8. The connection structure according to claim 6, wherein the connection portion is not provided on an outer peripheral side of each of the third and fifth segments; or alternatively

The connecting part is not arranged on the outer peripheral side of the fifth section, connecting parts are arranged on the outer peripheral sides of the third section and the fourth section, and the outer diameter of the connecting part on the outer peripheral side of the third section is smaller than that of the connecting part on the outer peripheral side of the fourth section;

the mounting hole comprises a first hole section and a second hole section which are axially arranged along the mounting hole and are mutually communicated, and the diameter of the first hole section is smaller than that of the second hole section; the connecting part on the outer periphery side of the third section is connected and matched with the inner wall of the first hole section, and the connecting part on the outer periphery side of the fourth section is connected and matched with the inner wall of the second hole section.

9. The connection structure according to claim 6, wherein an inner wall of the mounting hole is provided with first teeth;

the connecting part comprises a second tooth which is arranged on the periphery of the cylinder body and corresponds to the first tooth, and the connecting part is connected with the inner wall of the mounting hole by means of the engagement of the second tooth and the first tooth.

10. The connection according to claim 9, wherein each of the second teeth has a plane directed away from the bottom of the elastic sleeve; wherein:

each of the pointing planes extends in a radial direction of the barrel portion; or alternatively, the first and second heat exchangers may be,

each pointing plane extends obliquely towards the bottom, and an included angle between each pointing plane and the radial direction of the cylinder body is a, wherein a is more than 0 degrees and less than or equal to 10 degrees; or alternatively, the first and second heat exchangers may be,

each pointing plane extends obliquely towards the top, and an included angle between each pointing plane and the radial direction of the cylinder body is b, wherein b is more than 0 degrees and less than or equal to 30 degrees.

11. The connection structure according to claim 9, wherein the connection portion includes a second tooth configured as a screw tooth or a ring tooth.

12. The connection structure according to any one of claims 1 to 11, further comprising a pre-assembly, wherein a limiting portion is provided at an end of the first section remote from the second section, the pre-assembly is sleeved outside the second section for mating with the second structural member, and the elastic sleeve is limited between the pre-assembly and the limiting portion along its own axial direction.

13. A building connection system comprising two prefabricated members and a connection structure according to any one of the preceding claims 1-12;

the first structural component and the second structural component are respectively embedded in the two prefabricated components, and the connecting structure is used for connecting the two prefabricated components through the first structural component and the second structural component.