connection structure

Abstract

The present application relates to a connecting structure, comprising: a first connecting member having a first end and a second end oppositely arranged along a first direction, the first end being used for connecting to a first structural member; and a second connecting member sleeved on the second end of the first connecting member and having a preset gap along a radial direction of a mounting hole with an outer peripheral wall of the first connecting member. The connecting structure can make the second connecting member operably extrude into a mounting hole of a second structural member along the radial direction of the mounting hole, and the second connecting member is configured to be connected to a side wall of the mounting hole of the second structural member by using its own deformation recovery force, so that the second connecting member is tightly connected with the second structural member, and the installation process is simplified. The second connecting member has the preset gap along the radial direction of the mounting hole with the outer peripheral wall of the first connecting member, and the preset gap can provide a deformation space for the deformation of the second connecting member, so as to facilitate the installation of the second connecting member.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building connection, in particular to a connection structure. BACKGROUND

[0002] In the related art, a building connection structure is disclosed, which is connected to a building structural member by interference fit after filling material is injected into a mounting hole of the building structural member.

[0003] However, the conventional connection structure has the problem of difficult installation. SUMMARY

[0004] Therefore, it is necessary to provide a connection structure which is easy to install and reliable in connection.

[0005] According to an aspect of the present application, a connection structure is provided for connecting a first structural member and a second structural member, the second structural member having a mounting hole extending along a first direction, the connection structure comprising:

[0006] a first connecting member having a first end and a second end oppositely arranged along the first direction, the first end of the first connecting member being configured to be connected to the first structural member; and

[0007] a second connecting member sleeved on the second end of the first connecting member and having a preset gap along a radial direction of the mounting hole with an outer peripheral wall of the first connecting member, the second connecting member being elastically deformable along the radial direction of the mounting hole and being configured to be operatively extruded into the mounting hole of the second structural member to be connected to a side wall of the mounting hole of the second structural member by using the deformation recovery force of the second connecting member and to be located between the side wall of the mounting hole and the preset gap.

[0008] In one embodiment, the outer peripheral wall of the first connecting member and an inner peripheral wall of the second connecting member jointly define the preset gap, and the preset gap is arranged at an angle with respect to the first direction.

[0009] In one embodiment, along the first direction from the first connecting member to the second connecting member, the inner peripheral wall of the second connecting member gradually increases in size along the radial direction of the mounting hole, and the outer peripheral wall of the second connecting member remains unchanged in size along the radial direction of the mounting hole.

[0010] In one embodiment, along the first direction from the first connecting member to the second connecting member, the second connecting member gradually increases in size along the radial direction of the mounting hole.

[0011] In one of the embodiments, the outer circumferential surface of the second connecting member is provided with a first clamping portion, and the sidewall of the mounting hole is provided with a second clamping portion corresponding to the first clamping portion.

[0012] The first clamping portion and the second clamping portion are matched to limit the movement of the second connecting member along the first direction.

[0013] In one of the embodiments, the outer circumferential surface of the second connecting member is provided with a plurality of first clamping portions along the first direction, and the sidewall of the mounting hole is provided with a plurality of second clamping portions corresponding to the first clamping portions one by one.

[0014] The first clamping portions and the second clamping portions are staggered along the first direction.

[0015] In one of the embodiments, the first clamping portion is a triangular thread, and the second clamping portion is a triangular thread matched with the triangular thread; or

[0016] The first clamping portion is provided with a first clamping surface, the first clamping surface is arranged at an angle with the radial direction of the mounting hole, and the second clamping portion is a triangular thread; or

[0017] The first clamping portion is provided with a first clamping surface, the second clamping portion is provided with a second clamping surface arranged in parallel with the first clamping surface, and the first clamping surface and the second clamping surface are respectively arranged at an angle with the radial direction of the mounting hole.

[0018] In one of the embodiments, at least one first opening is provided through the second connecting member along the radial direction of the mounting hole at an end of the second connecting member away from the first end, so that the second connecting member can be elastically deformed along the radial direction of the mounting hole.

[0019] In one of the embodiments, a plurality of first openings are provided, and all the first openings are arranged at intervals along the circumferential direction of the mounting hole.

[0020] In one of the embodiments, along the first direction from the first connecting member to the second connecting member, the size of the first opening along the circumferential direction of the mounting hole gradually increases.

[0021] In one of the embodiments, at least one second opening is provided through the second connecting member along the radial direction of the mounting hole at an end of the second connecting member close to the first end.

[0022] The first opening and the second opening are staggered along the circumferential direction of the mounting hole.

[0023] In one of the embodiments, the second connecting member is provided with a third opening penetrating the second connecting member along the first direction, and the third opening gradually increases in size along the circumferential direction of the mounting hole from the first connecting member to the second connecting member.

[0024] In one of the embodiments, the first structure member is provided with a recess penetrating the first structure member along the first direction near one end of the second structure member; and the second connecting member is arranged in the recess away from the first opening along the first direction.

[0025] In one of the embodiments, the second end of the first connecting member is provided with a resisting portion, the resisting portion is provided with a first limiting surface, the second connecting member is provided with a second limiting surface arranged opposite to the first limiting surface, and the first limiting surface and the second limiting surface cooperate to limit the movement of the second connecting member along the first direction.

[0026] In one of the embodiments, the first limiting surface is arranged at an angle with the first direction.

[0027] The connecting structure is provided with the second connecting member capable of elastically deforming along the radial direction of the mounting hole, and the second connecting member is configured to be operatively extruded into the mounting hole of the second structure member, so that the second connecting member can be connected to the side wall of the mounting hole of the second structure member by using the deformation restoring force of itself, and is located between the side wall of the mounting hole and the preset gap, thereby fastening the connection between the second connecting member and the second structure member, improving the connection reliability of the second connecting member and the second structure member, and simplifying the installation process; the preset gap between the second connecting member and the outer peripheral wall of the first connecting member along the radial direction of the mounting hole can provide a deformation space for the deformation of the second connecting member, so as to facilitate the installation of the second connecting member, so that the second connecting member can be smoothly connected to the side wall of the mounting hole of the second structure member, improve the convenience of installation, and when a plurality of connecting structures are arranged to connect the first structure member and the second structure member, the preset gap can offset the precision error of the mounting hole of the second structure member, thereby ensuring that all the connecting structures can be smoothly installed. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The figure is a schematic diagram of the assembly of the connecting structure in one embodiment of the present application;

[0029] Figure 2 The figure is a schematic diagram of the assembly of the connecting structure in one embodiment of the present application; Figure 1

[0030] Figure 3 The figure is a schematic diagram of the assembly of the connecting structure in one embodiment of the present application; Figure 1

[0031] ​​Figure 4 Assembling view of the connecting structure and the first structural member and the second structural member in another embodiment of the present application;

[0032] Figure 5 Assembling view of the connecting structure and the first structural member and the second structural member in another embodiment of the present application;

[0033] Figure 6 Assembling view of the connecting structure in another embodiment of the present application;

[0034] Figure 7 Assembling view of the connecting structure in another embodiment of the present application Figure 6 Assembling view of the connecting structure in another embodiment of the present application

[0035] Figure 8 Assembling view of the connecting structure in another embodiment of the present application

[0036] Figure 9 Assembling view of the connecting structure in another embodiment of the present application Figure 8 Assembling view of the connecting structure in another embodiment of the present application

[0037] Figure 10 Assembling view of the connecting structure and the first structural member and the second structural member in another embodiment of the present application;

[0038] Figure 11 Assembling view of the connecting structure and the first structural member and the second structural member in another embodiment of the present application;

[0039] Figure 12 Assembling view of the connecting structure and the first structural member and the second structural member in another embodiment of the present application;

[0040] Figure 13 Assembling view of the connecting structure and the first structural member and the second structural member in another embodiment of the present application;

[0041] Figure 14 Assembling view of the connecting structure and the first structural member and the second structural member in another embodiment of the present application;

[0042] Figure 15 Assembling view of the connecting structure and the first structural member and the second structural member in another embodiment of the present application Figure 14 Assembling view of the connecting structure and the first structural member and the second structural member in another embodiment of the present application

[0043] Figure 16 Assembling view of the connecting structure and the first structural member and the second structural member in another embodiment of the present application Figure 14 Assembling view of the connecting structure and the first structural member and the second structural member in another embodiment of the present application

[0044] Figure 17 Assembling view of the connecting structure and the first structural member and the second structural member in another embodiment of the present application

[0045] Figure 18 Assembling view of the connecting structure and the first structural member and the second structural member in another embodiment of the present application

[0046] Figure 19 Assembling view of the connecting structure and the first structural member and the second structural member in another embodiment of the present application

[0047] Figure 20 Fig. 6 is a schematic view of a second connecting member in a sixth embodiment of the present application;

[0048] Figure 21 Fig. 7 is a schematic view of an assembly of the connecting structure, the first structural member and the second structural member in a preferred embodiment of the present application.

[0049] BRIEF DESCRIPTION OF THE DRAWINGS

[0050] 10, connecting structure; 11, first connecting member; 111, first end; 112, second end; 113, abutting portion; 1131, first limiting surface; 12, second connecting member; 121, first clamping portion; 1212, first clamping surface; 126, crest segment; 127, trough segment; 122, first opening; 123, second opening; 124, third opening; 125, second limiting surface; 13, preset gap;

[0051] a, first direction;

[0052] 20, first structural member; 21, connecting hole; 22, sink groove; 30, second structural member; 31, mounting hole; 311, second clamping portion; 3111, second clamping surface. DETAILED DESCRIPTION

[0053] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without using some or all of these specific details. In other instances, well-known process steps have not been described in detail in order to avoid obscuring the present application. Accordingly, the specific embodiments disclosed below do not define or constrain the scope of the application.

[0054] In the description of the present application, it is to 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" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0055] In addition, the terms "first", "second", etc. are used herein only to describe different instances, and are not used to denote or imply relative importance or a number of indications of the technical features indicated. Thus, the technical features defined with "first", "second" can explicitly or implicitly include at least one of the technical features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0056] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0057] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0058] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes, and do not represent the only embodiment.

[0059] The prior art discloses a building connecting structure, comprising a connecting rod, an extrusion block sleeved on the connecting rod, and a metal spring ring sleeved on the extrusion block, one end of the connecting rod is connected to a first structural member, the combined structure formed by the connecting rod, the extrusion block and the metal spring ring is inserted into a mounting hole of a second structural member in a manner of interference fit, and a filling material needs to be injected in the mounting hole in advance to connect the combined structure and the second structural member firmly. Since the interference fit is used for connection, the building connecting structure is not easy to be inserted into the second structural member, in order to connect stably, a plurality of connecting structures are usually used to connect the first structural member and the second structural member at the same time, but due to the low precision of the mounting hole, the interference fit connecting structure cannot be installed smoothly, and the aging of the filling material can cause unreliable connection.

[0060] Therefore, the application provides a connecting structure for connecting building structural members to solve at least one of the above-mentioned defects in the prior art.

[0061] Figure 1 The assembly diagram of the connecting structure in an embodiment of the application is shown in the figure; Figure 2 The application Figure 1 The cross-sectional view of A-A in the application is shown in the figure; Figure 3 The application Figure 1 The assembly diagram of the connecting structure, the first structural member and the second structural member in the application is shown in the figure.

[0062] Referring to Figures 1 to 3 , the application provides a connecting structure 10 for connecting a first structural member 20 and a second connecting member 30, the second connecting member 30 has a mounting hole 31 extending along a first direction (such as a direction shown by a in Figure 1 , the connecting structure 10 comprises a first connecting member 11 for connecting the first structural member 20 and a second connecting member 12 for connecting the second structural member 30, the second connecting member 12 is sleeved on the second end 112 of the first connecting member 11, and has a preset gap 13 (such as shown by d in Figure 1 ) along the radial direction of the mounting hole 31 between the outer peripheral wall of the first connecting member 11, the second connecting member 12 can be elastically deformed along the radial direction of the mounting hole 31, and is configured to be capable of being operatively extruded into the mounting hole 31 of the second structural member 30.

[0063] Thus, by arranging the first connecting member 11 and the second connecting member 12 at intervals along the radial direction of the mounting hole 31, space is provided for deformation of the second connecting member 12, so that the second connecting member 12 can be smoothly connected to the side wall of the mounting hole 31 of the second structural member 30, and when a plurality of connecting structures 10 are arranged to connect the first structural member 20 and the second structural member 30, the preset gap can offset the precision error of the mounting hole 31 of the second structural member 30, so as to ensure that all the connecting structures 10 can be smoothly installed; by arranging the second connecting member 12 to be elastically deformed along the radial direction of the mounting hole 31, the second connecting member 12 is connected to the side wall of the mounting hole 31 of the second structural member 30 by the deformation restoring force of the second connecting member 12, and is located between the side wall of the mounting hole 31 and the preset gap 13, thereby improving the connection reliability of the second connecting member 12 and the second structural member 30.

[0064] Specifically, referring to Figures 1 to 3 , the first connecting member 11 is a whole rotary body structure, the first connecting member 11 has a first end 111 and a second end 112 arranged opposite along a first direction, the first end 111 of the first connecting member 11 is used to be connected to the first structural member 20. The first structural member 20 is provided with a connecting hole 21 penetrating through the first structural member 20 along the first direction, the first end 111 of the first connecting member 11 is arranged in the connecting hole 21 to be connected to the first structural member 20. Preferably, the outer peripheral wall of the first end 111 of the first connecting member 11 is configured as a threaded surface, the connecting hole 21 is a threaded hole, that is, the first connecting member 11 and the first structural member 21 are connected by screwing. Thus, the first connecting member 11 is connected to the first structural member 20 by screwing, which is conducive to improving the connection strength and reliability.

[0065] Referring to Figures 1 to 3 , the second connecting member 12 is a whole rotary body structure, the second connecting member 12 is sleeved on the second end 112 of the first connecting member 11, and has a preset gap 13 along the radial direction of the mounting hole 31 between the outer peripheral wall of the first connecting member 11, the second connecting member 12 can be elastically deformed along the radial direction of the mounting hole 31, and is configured to be operable to be squeezed into the mounting hole 31 of the second structural member 30, so as to be connected to the side wall of the mounting hole 31 of the second structural member 30 by the deformation restoring force of itself, and be located between the side wall of the mounting hole 31 and the preset gap 13.

[0066] Thus, by arranging the second connecting member 12 capable of being elastically deformed and the preset gap 13, the second connecting member 12 is inserted into the mounting hole 31 of the second structural member 30, and the deformation restoring force of the second connecting member 12 can improve the connection reliability of the second connecting member 12 and the second structural member 30.

[0067] Figure 4Figure 2 is an assembly view of the connection structure and the first structural member and the second structural member in another embodiment of the present application.

[0068] Referring to Figure 4 In some embodiments, the outer peripheral wall of the second end 112 of the first connecting member 11 and the inner peripheral wall of the second connecting member 12 jointly define a preset gap 13, and the extension direction of the preset gap 13 is arranged at an angle to the first direction. That is, along the first direction from the first connecting member 11 to the second connecting member 12, the size of the second end 112 of the first connecting member 11 along the radial direction of the mounting hole 31 gradually increases, and the second end 112 is generally tapered. Also, along the first direction from the first connecting member 11 to the second connecting member 12, the size of the inner peripheral wall of the second connecting member 12 along the radial direction of the mounting hole 31 gradually increases, and the inner peripheral wall of the second connecting member 12 is tapered to match the outer peripheral wall of the second end 112. Along the first direction from the first connecting member 11 to the second connecting member 12, the size of the outer peripheral wall of the second connecting member 12 along the radial direction of the mounting hole 31 remains unchanged, that is, the outer peripheral wall of the second connecting member 12 is circular. Therefore, along the first direction from the first connecting member 11 to the second connecting member 12, the size of the preset gap 13 along the radial direction of the mounting hole 31 remains unchanged.

[0069] Figure 5 Figure 3 is an assembly view of the connection structure and the first structural member and the second structural member in another embodiment of the present application.

[0070] Referring to Figure 5 In one embodiment, along the first direction from the first connecting member 11 to the second connecting member 12, the size of the second connecting member 12 along the radial direction of the mounting hole 31 gradually increases. That is, the outer peripheral wall of the second connecting member 12 is generally tapered. It can be understood that in this embodiment, the inner peripheral wall of the mounting hole 31 is tapered to match the outer peripheral wall of the second connecting member 12.

[0071] In this way, by arranging the second end 112 of the first connecting member 11, the inner peripheral wall of the second connecting member 12, the second connecting member 12, and the inner peripheral wall of the mounting hole 31 to be generally tapered, when the first connecting member 11 is subjected to a pulling force, the first connecting member 11 will form a pressure on the second connecting member 12 along the radial direction of the mounting hole 31, so that the second connecting member 12 applies a force to the mounting hole 31 of the second structural member 30 along the radial direction of the mounting hole 31, thereby improving the pullout resistance of the connection structure 10 and preventing the second connecting member 12 from being pulled out of the mounting hole 31.

[0072] Referring to Figure 1 and Figures 3 to 5In some embodiments, the outer circumferential surface of the second connecting member 12 is provided with a first clamping portion 121, and the side wall of the mounting hole 31 is provided with a second clamping portion 311 corresponding to the first clamping portion 121, and the first clamping portion 121 and the second clamping portion 311 cooperate to limit the movement of the second connecting member 12 in the first direction.

[0073] In one embodiment, the outer circumferential surface of the second connecting member 12 is provided with a plurality of first clamping portions 121 in the first direction, and the side wall of the mounting hole 31 is provided with a plurality of second clamping portions 311 corresponding to the first clamping portions 121 in the first direction, and the first clamping portions 121 and the second clamping portions 311 are staggered in the first direction.

[0074] In this way, by providing the first clamping portion 121 and the second clamping portion 311 that cooperate, the second connecting member 12 can be firmly connected in the mounting hole 31 of the second structural member 30, thereby improving the connection reliability of the connecting structure 10.

[0075] Figure 6 Assembling view of the connecting structure in another embodiment of the present application; Figure 7 Assembling view of the connecting structure in another embodiment of the present application; Figure 6 Sectional view of B-B in the present application.

[0076] Specifically, referring to Figure 6 and Figure 7 In one embodiment, the second connecting member 12 includes a plurality of peak segments 126 and a plurality of valley segments 127, and the peak segments 126 and the valley segments 127 are alternately connected in a ring structure along the circumference of the mounting hole 31, and each peak segment 126 is provided with a first clamping portion 121. Preferably, the second connecting member 12 is a transverse corrugated spring.

[0077] Figure 8 Assembling view of the connecting structure in another embodiment of the present application; Figure 9 Assembling view of the connecting structure in another embodiment of the present application; Figure 8 Sectional view of C-C in the present application.

[0078] Referring to Figure 8 and Figure 9 In another embodiment, the second connecting member 12 includes a plurality of peak segments 126 and a plurality of valley segments 127, and the peak segments 126 and the valley segments 127 are alternately connected in the first direction, and each peak segment 126 is provided with a first clamping portion 121. Alternatively, a plurality of first clamping portions 121 are arranged on each peak segment 126 in the first direction. Preferably, the second connecting member 12 is a longitudinal corrugated spring.

[0079] Figure 10 Assembling view of the mounting structure, the first structural member and the second structural member in another embodiment of the present application; Figure 11 Partial view of the first clamping portion in another embodiment of the present application;Figure 12 is a partial view of the first clamping portion in a second embodiment of the present application.

[0080] Referring to Figure 10 In the first embodiment, the first clamping portion 121 is a triangular thread, and the second clamping portion 311 is a triangular thread matched with the triangular thread. Referring to Figure 11 In the second embodiment, the first clamping portion 121 is provided with a first clamping surface 1212 arranged at an angle (e.g. α in the drawing) with the radial direction of the mounting hole 31, and the second clamping portion 311 is a triangular thread. Referring to Figure 11 In the third embodiment, the first clamping portion 121 is provided with a first clamping surface 1212, and the second clamping portion 311 is provided with a second clamping surface 3111 arranged parallel to the second clamping portion 311, and the first clamping surface 1212 and the second clamping surface 3111 are arranged at the same angle (e.g. β in the drawing) with the radial direction of the mounting hole 31. Figure 12 Figure 11

[0081] Figure 13 is a structural schematic view of the second connecting member in the first embodiment of the present application.

[0082] Referring to Figure 13 In some embodiments, the second connecting member 12 is provided with at least one first opening 122 penetrating the end of the second connecting member 12 away from the first end 111 in the radial direction of the mounting hole 31, so that the second connecting member 12 can be elastically deformed in the radial direction of the mounting hole 31. It can be understood that the first opening 122 can be provided with multiple openings spaced apart in the circumferential direction of the mounting hole 31. Preferably, along the first direction from the first connecting member 11 to the second connecting member 12, the size of the first opening 122 in the circumferential direction of the mounting hole 31 gradually increases.

[0083] In this way, by providing the first opening 122, the second connecting member 12 can be elastically deformed in the radial direction of the mounting hole 31, and since the end of the second connecting member 12 away from the first structure 20 is subjected to the pressing force for a longer time than the end of the second connecting member 12 close to the first structure 20, it needs more deformation ability, therefore, along the first direction from the first connecting member 11 to the second connecting member 12, the size of the first opening 122 in the circumferential direction of the mounting hole 31 gradually increases to improve the deformation ability of the end of the second connecting member 12 away from the first structure 20.

[0084] Figure 14 is a structural schematic view of the second connecting member in the second embodiment of the present application; Figure 15 is a top view of the present application Figure 14 ; and Figure 16 ​​Figure 1 is a perspective view of a first embodiment of the present application. Figure 14 Figure 2 is a bottom view of the first embodiment of the present application.

[0085] Further, referring to Figure 14 In some embodiments, the second connecting member 12 is provided with at least one second opening 123 through the end of the second connecting member 12 close to the first end 111 along the radial direction of the mounting hole 31. The at least one second opening 123 is through the end of the second connecting member 12 close to the first end 111, and the first openings 122 and the second openings 123 are staggered along the circumferential direction of the mounting hole 31 to avoid the first openings 122 and the second openings 123 being connected to cause the second connecting member 12 to be disconnected. It can be understood that the first openings 122 and the second openings 123 can be spaced apart along the circumferential direction of the mounting hole 31, and any first opening 122 and any second opening 123 cannot be connected.

[0086] Preferably, referring to Figure 14 In the first direction, the sum of the size of any first opening 122 and the size of any second opening 123 in the first direction is greater than or equal to the size of the second connecting member 12 in the first direction; referring to Figure 15 and Figure 16 the number of the first openings 122 is greater than the number of the second openings 123.

[0087] Figure 17 Figure 3 is a structure schematic view of the second connecting member in the third embodiment of the present application.

[0088] Referring to Figure 17 the size of the first opening 122 in the circumferential direction of the mounting hole 31 (as shown by e2 in Figure 17 ) is greater than the size of the second opening 123 in the circumferential direction of the mounting hole 31 (as shown by e1 in Figure 17 ), that is, e2 is greater than e1.

[0089] In this way, the deformation ability of the end of the second connecting member 12 away from the first structural member 20 can be improved to facilitate the installation and connection of the second connecting member 12.

[0090] Figure 18 Figure 4 is a structure schematic view of the second connecting member in the fourth embodiment of the present application.

[0091] Further, referring to Figure 18In some embodiments, the second connecting piece 12 is provided with a third opening 124 penetrating the second connecting piece 12 along the radial direction of the mounting hole 31, and the third opening 124 also penetrates the second connecting piece 12 along the first direction from the first connecting piece 11 to the second connecting piece 12. The size of the third opening 124 along the circumferential direction of the mounting hole 31 gradually increases, and the first opening 122, the second opening 123 and the third opening 124 are staggered along the circumferential direction of the mounting hole 31. In this way, the deformation ability of the end of the second connecting piece 12 away from the first structure 20 is improved, thereby facilitating the installation and connection of the second connecting piece 12.

[0092] Figure 19 A structure diagram of a second connecting piece in a fifth embodiment of the present application; Figure 20 A structure diagram of a second connecting piece in a sixth embodiment of the present application.

[0093] Referring to Figure 19 In some embodiments, the second connecting piece 12 is provided with only the third opening 124. Referring to Figure 20 In some embodiments, the second connecting piece 12 is provided with the third opening 124 and at least one first opening 122, and the first opening 122 and the third opening 124 are staggered along the circumferential direction of the mounting hole 31. It can be understood that, in order to enable the second connecting piece 12 to be smoothly installed on the second structure 30, the end of the second connecting piece 12 away from the first structure 20 must have a deformation ability, and therefore the second connecting piece 12 of the present application can be provided with only the first opening 122 or only the third opening 124, or can be provided with the first opening 122 and the second opening 123, or can be provided with the first opening 122 and the third opening 124, or can be provided with the first opening 122, the second opening 123 and the third opening 124.

[0094] Referring to Figure 1 , Figure 3 and Figure 10 In some embodiments, the second end 112 of the first connecting piece 11 is provided with an abutting portion 113, the abutting portion 113 is provided with a first limiting surface 1131, the second connecting piece 12 is provided with a second limiting surface 125 opposite to the first limiting surface 1131, and the first limiting surface 1131 and the second limiting surface 125 cooperate to limit the movement of the second connecting piece 12 along the first direction. In an embodiment, the first limiting surface 1131 is arranged at an angle with respect to the first direction. Preferably, along the first direction from the first connecting piece 11 to the second connecting piece 12, the size of the first limiting surface 1131 along the circumferential direction of the mounting hole 31 gradually increases; along the first direction from the first connecting piece 11 to the second connecting piece 12, the size of the second limiting surface 125 along the circumferential direction of the mounting hole 31 gradually increases.

[0095] Thus, by setting the abutting portion 113 and the first limiting surface 1131 and the second limiting surface 125, when the first connecting piece 11 is subjected to a pulling force, the abutting portion 113 will form a pressure on the second connecting piece 12 along the radial direction of the mounting hole 31, so as to make the second connecting piece 12 apply a force along the radial direction of the mounting hole 31 to the mounting hole 31 of the second structural piece 30, thereby improving the pulling resistance of the connecting structure 10 and preventing the second connecting piece 12 from being pulled out of the mounting hole 31.

[0096] Referring to Figure 1 and Figure 3 In an embodiment, the abutting portion 113 and the second end 112 of the first connecting piece 11 are integrally formed. Referring to Figure 10 In another embodiment, the abutting portion 113 is detachably sleeved on the second end 112 of the first connecting piece 11, and is located at an end of the second end 112 away from the first end 111 in the first direction.

[0097] It should be noted that, referring to Figure 4 In this embodiment, the second end 112 of the first connecting piece 11 is provided with the abutting portion 113 on the side away from the first end 11 in the first direction, and the size of the abutting portion 113 in the circumferential direction of the mounting hole 31 gradually decreases from the first connecting piece 11 to the second connecting piece 12 in the first direction. The abutting portion 113 in this embodiment can only provide a supporting force along the first direction to the second connecting piece 12 to avoid the second connecting piece 12 from sliding out of the mounting hole 31, but cannot form a pressure on the second connecting piece 12 along the radial direction of the mounting hole 31.

[0098] Figure 21 It is a preferred embodiment of the connecting structure and the first structural piece and the second structural piece.

[0099] Referring to Figure 21 In an embodiment, the first structural piece 20 is provided with a sink groove 22 communicating with the connecting hole 22 at an end close to the second structural piece 30, the sink groove 22 is coaxially arranged with the connecting hole 21, and the sink groove 22 penetrates through the end of the first structural piece 20 close to the second structural piece 30 in the first direction. When the second connecting piece 12 is only provided with the first opening 122, the end of the second connecting piece 12 away from the first opening 122 in the first direction is arranged in the sink groove 22.

[0100] In summary, the application provides a connecting structure 10, by setting the second connecting member 12 can be elastically deformed along the radial direction of the mounting hole 31, and the second connecting member 12 is configured to be operable to be squeezed into the mounting hole 31 of the second structural member 30, so that the second connecting member 12 can be connected to the side wall of the mounting hole 31 of the second structural member 30 by using the deformation recovery force of itself, thereby making the second connecting member 12 and the second structural member 30 fasten connection, simplifying the installation process; by setting the second connecting member 12 and the outer peripheral wall of the first connecting member 11 have a preset interval 13 along the radial direction of the mounting hole 31, the preset gap 13 can provide a deformation space for the deformation of the second connecting member 12, so as to facilitate the installation of the second connecting member 12.

[0101] The technical features of the above embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described, but it should be understood that any combination of the technical features is within the scope of the present disclosure as long as the combination does not result in contradictions.

[0102] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims.

Claims

1. A connecting structure for connecting a first structural member and a second structural member, the second structural member having a mounting hole extending in a first direction, the connecting structure comprising: a first connecting member having a first end and a second end oppositely arranged in the first direction, the first end of the first connecting member being configured to be connected to the first structural member; and a second connecting member sleeved on the second end of the first connecting member and having a preset gap in a radial direction of the mounting hole with an outer peripheral wall of the first connecting member, the second connecting member being elastically deformable in the radial direction of the mounting hole and being configured to be operatively extruded into the mounting hole of the second structural member to be connected to a side wall of the mounting hole of the second structural member by a deformation recovery force of the second connecting member and to be located between the side wall of the mounting hole and the preset gap, wherein the outer peripheral wall of the first connecting member and an inner peripheral wall of the second connecting member jointly define the preset gap, and an outer peripheral surface of the second connecting member is provided with a first clamping portion. 2.The connecting structure according to claim 1, wherein the preset gap is arranged at an angle to the first direction. 3.The connecting structure according to claim 2, wherein, from the first connecting member to the second connecting member in the first direction, the inner peripheral wall of the second connecting member gradually increases in size in the radial direction of the mounting hole, and the outer peripheral wall of the second connecting member remains unchanged in size in the radial direction of the mounting hole. 4.The connecting structure according to claim 2, wherein, from the first connecting member to the second connecting member in the first direction, the second connecting member gradually increases in size in the radial direction of the mounting hole. 5.The connecting structure according to claim 1, wherein the side wall of the mounting hole is provided with a second clamping portion corresponding to the first clamping portion, and the first clamping portion and the second clamping portion cooperate to limit movement of the second connecting member in the first direction. 6.The connecting structure according to claim 5, wherein the outer peripheral surface of the second connecting member is provided with a plurality of first clamping portions in the first direction, the side wall of the mounting hole is provided with a plurality of second clamping portions corresponding to the first clamping portions one by one, and the first clamping portions and the second clamping portions are staggered in the first direction. 7.The connecting structure according to claim 5, wherein the first clamping portion is a triangular thread, and the second clamping portion is a triangular thread matched with the triangular thread; or the first clamping portion is provided with a first clamping surface arranged at an angle to the radial direction of the mounting hole, and the second clamping portion is a triangular thread; or the first clamping portion is provided with a first clamping surface, and the second clamping portion is provided with a second clamping surface arranged in parallel with the first clamping surface, and the first clamping surface and the second clamping surface are respectively arranged at an angle to the radial direction of the mounting hole. 8.The connecting structure according to claim 1, wherein ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The second connecting member is provided with at least one first opening penetrating through the second connecting member along a radial direction of the mounting hole, so that the second connecting member can be elastically deformed along the radial direction of the mounting hole.

9. The connecting structure according to claim 8, wherein The first opening is provided with a plurality of first openings, and all the first openings are arranged along a circumferential direction of the mounting hole.

10. The connecting structure according to claim 8, wherein The size of the first opening along the circumferential direction of the mounting hole gradually increases from the first connecting member to the second connecting member along the first direction.

11. The connecting structure according to claim 8, wherein The second connecting member is provided with at least one second opening penetrating through the second connecting member along a radial direction of the mounting hole.

12. The connecting structure according to claim 11, wherein The first opening and the second opening are arranged alternately along the circumferential direction of the mounting hole.

13. The connecting structure according to any one of claims 1-12, wherein The second connecting member is provided with a third opening penetrating through the second connecting member along the first direction, and the size of the third opening along the circumferential direction of the mounting hole gradually increases from the first connecting member to the second connecting member along the first direction.

14. The connecting structure according to claim 8, wherein The first structure member is provided with a recess penetrating through the first structure member along the first direction, and the second connecting member is arranged in the recess away from the first opening along the first direction.

15. The connecting structure according to any one of claims 1-7, wherein The second end of the first connecting member is provided with a contact portion, the contact portion is provided with a first limiting surface, the second connecting member is provided with a second limiting surface arranged opposite to the first limiting surface, and the first limiting surface and the second limiting surface cooperate to limit the movement of the second connecting member along the first direction.

16. The connecting structure according to claim 15, wherein The first limiting surface is arranged at an angle with respect to the first direction.

17. The connecting structure according to claim 11, wherein The first opening and the second opening can be provided with a plurality of first openings and a plurality of second openings along the circumferential direction of the mounting hole; The sum of the size of any first opening and the size of any second opening along the first direction is greater than or equal to the size of the second connecting member along the first direction.

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