A building connector and connecting system

Abstract

The utility model relates to building connection structure technical field, the utility model provides a kind of building connecting piece and connecting system, it includes the elastic sleeve with the first section and the second section along the axial direction, the first section has outer thread, the second section is set with the expansion opening that penetrates along elastic sleeve radial, expansion opening penetrates the second section axially;The top post has the section of extension and the flared section connected in turn, the diameter of flared section is greater than the diameter of section of extension, and flared section and section of extension are smoothly connected, section of extension can enter second section from the end of second section, and flared section enters second section and can push second section expansion.Solved the technical problem that elastic connecting piece in prior art is deformed and leads to connection to fall off by radial force.

Description

Technical Field

[0001] This utility model relates to the field of building connection structure technology, specifically to a building connector and connection system. Background Technology

[0002] During building construction, some large structural components require splicing and connection. Some of these structures can be connected using bolts and nuts. However, bolt and nut connections usually involve multiple forces working together, requiring each component to be tightened individually during construction. Furthermore, when splicing two concrete columns, the bolts and nuts need to be tightened manually or with the aid of equipment. Since the bolts and nuts on both sides are located inside the columns after splicing, they cannot be tightened manually, making the bolt and nut connection method unsuitable.

[0003] In existing technology, an elastic connector with an annular buckle on its outer wall is inserted into a connecting hole with an annular buckle on its inner wall. The deformation of the elastic connector causes the annular buckle on the elastic connector to pass over the annular buckle in the connecting hole to complete the connection. This method of connection only requires pushing one end of the elastic connector into the connecting hole; tightening is not required. However, in practical use, because the elastic connector itself has deformation capacity, if the two structural components connected by the elastic connector are subjected to a large radial force, the elastic connector is very likely to deform and shrink, leading to the connection breaking. Utility Model Content

[0004] To overcome the above-mentioned defects, embodiments of this utility model provide a building connector and connection system, which solves the technical problem in the prior art that elastic connectors are easily deformed by radial force, leading to connection detachment.

[0005] According to one aspect, at least one embodiment of the present invention provides a building connector, comprising: An elastic sleeve has a first section and a second section along an axial direction. The first section has external threads, and the second section has an expansion opening that extends radially through the elastic sleeve and axially through the second section. The top column has an extension section and a flared section connected in sequence. The diameter of the flared section is larger than the diameter of the extension section, and the flared section is smoothly connected to the extension section. The extension section can enter the second section from the end of the second section, and the flared section can push the second section to expand when it enters the second section.

[0006] For example, in a building connector provided by at least one embodiment of the present invention, the inner wall of the second section is provided with a first annular buckle, and the end of the extended section away from the flared section has a second annular buckle. The first annular buckle can be engaged with the first annular buckle so that the top column and the elastic sleeve are in a connected state.

[0007] For example, in a building connector provided by at least one embodiment of the present invention, the flared section has an annular groove, and the first annular buckle can enter the annular groove.

[0008] For example, in a building connector provided by at least one embodiment of the present invention, the width of the expansion opening gradually increases in the direction away from the first segment.

[0009] For example, in a building connector provided in at least one embodiment of the present invention, the outer wall of the second segment has a connecting ring buckle, which is used to fasten to the inner wall of the hole of the external component.

[0010] For example, in at least one embodiment of this utility model, a building connector further includes: A strut is connected within the first section, and the strut is capable of supporting the inner wall of the first section.

[0011] According to another aspect, at least one embodiment of the present invention also provides a building connection system, including at least two of the aforementioned building connectors, and further comprising: A mother plate for connecting to the first building structure, the mother plate having a plurality of threaded holes, the first section being threadedly connected to the threaded holes; The sub-plate is used to connect the second building structure. The mother plate has a number of connection holes that correspond one-to-one with the mother plate. The inner wall of the connection hole can connect with the second section after the second section expands.

[0012] For example, in a building connection system provided by at least one embodiment of the present invention, the connection hole is a tapered hole, and the inner diameter of the small diameter end of the connection hole is larger than the outer diameter of the second section before expansion.

[0013] For example, in a building connection system provided by at least one embodiment of the present invention, the inner wall of the connection hole has a plurality of fixed ring buckles that can be engaged with the connection ring buckles on the expanded second segment.

[0014] For example, in a building connection system provided by at least one embodiment of the present invention, the system further includes: A blocking plate is provided on the sub-plate. The blocking plate is located at the large-diameter end of the connecting hole. The blocking plate can push the top post into the second section.

[0015] The beneficial effects of this utility model are as follows: In this invention, by adding a top post inside the elastic sleeve, the top post can apply an outward pushing force from inside the elastic sleeve. Even if the two structural members connected by this connection structure are subjected to a large radial force, the rigid top post can prevent the elastic sleeve from shrinking and deforming, thereby preventing the connection between the two connecting members from falling off.

[0016] Compared with the traditional bolt and nut connection method, this connector only requires the first section of the elastic sleeve to be screwed into the connection hole of one structural component, and then the second section to be inserted into the interior of another structural component. Relying on the close compression between the two structural components, the top column is pushed into the interior of the second section, and the expansion of the second section is used to fix it inside the structural component, avoiding the connection operation of tightening bolts and nuts one by one. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the building connector in one embodiment of the present invention; Figure 2 for Figure 1 A cross-sectional structural schematic diagram of an embodiment; Figure 3 for Figure 1 A schematic diagram of the elastic sleeve structure of an embodiment; Figure 4 for Figure 1 A front view structural schematic diagram of the elastic sleeve in an embodiment; Figure 5 This is a schematic diagram of another embodiment of the elastic sleeve; Figure 6 This is a structural schematic diagram of the building connection system of this utility model; Figure 7 for Figure 6 Schematic diagram of the mid-section structure; In the diagram: 100, elastic sleeve; 110, first section; 120, second section; 121, expansion opening; 200, top column; 210, extension section; 220, flared section; 122, first annular buckle; 211, second annular buckle; 221, annular groove; 123, connecting annular buckle; 300, support rod; 400, mother plate; 410, threaded hole; 500, daughter plate; 510, connecting hole; 511, fixing annular buckle; 600, blocking plate. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0020] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0021] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] like Figures 1-5The diagram illustrates a building connector according to one embodiment of the present invention, comprising an elastic sleeve 100 and a top column 200. The elastic sleeve 100 is made of a metal material with good elasticity and a certain strength, such as spring steel. Its elastic limit and yield strength are improved through heat treatment, ensuring that it can undergo elastic deformation without easily breaking during use. The elastic sleeve 100 has a first segment 110 and a second segment 120 along its axial direction. The first segment 110 and the second segment 120 can be connected according to actual usage requirements, or they can be spaced apart axially. The outer wall of the first segment 110 is machined with external threads, which allow it to be threadedly connected to an external structural component. The second segment 120 has an expansion opening 121 that penetrates radially through the elastic sleeve 100 and axially through the second segment 120, allowing the second segment 120 to expand and deform. The expansion opening 121 can be machined by wire cutting or milling. The width of the expansion opening 121 is determined according to the elastic deformation requirements of the elastic sleeve 100 and the size of the flared section 220 of the top column 200. The width of the expansion opening 121 refers to the distance between the two side walls of the expansion opening 121.

[0026] The top post 200 is made of high-strength metal and has a sequentially connected insertion section 210 and a flared section 220. The diameter of the insertion section 210 is matched with the inner diameter of the elastic sleeve 100 to ensure that the insertion section 210 can enter the elastic sleeve 100. The diameter of the flared section 220 is larger than the diameter of the insertion section 210 so that when the flared section 220 enters the elastic sleeve 100, the elastic sleeve 100 can be expanded, thereby connecting the elastic sleeve 100 to the external structural component. The diameter of the flared section 220 is not larger than the outer diameter of the elastic sleeve 100 so that the top post 200 can enter the hole of the external connector. The insertion section 210 and the flared section 220 of the top post 200 are smoothly connected.

[0027] When using this building connector, firstly, the first section 110 of the elastic sleeve 100 is screwed into the connecting hole 510 of the building structural member (such as a concrete column), so that the external thread tightly engages with the internal thread on the inner wall of the connecting hole 510, completing the initial fixation. Then, the insertion section 210 of the top column 200 is inserted from the end of the second section 120 of the elastic sleeve 100. As the top column 200 is inserted deeper, the flared section 220 gradually enters the second section 120 of the elastic sleeve 100. Because the diameter of the flared section 220 is larger than that of the insertion section 210 and is smoothly connected to the insertion section 210, the flared section 220 will gradually push against the inner wall of the second section 120 of the elastic sleeve 100, causing the second section 120 to elastically expand along the direction of the expansion opening 121. After elastic expansion, the elastic sleeve 100 fits tightly against the inner wall of the connecting hole 510, thereby increasing the friction and fastening force of the connection. When the two connected structural components are subjected to radial force, the elastic sleeve 100, supported by the flared section 220 of the top column 200, will not easily deform or shrink, effectively preventing the connection from falling off.

[0028] By adding a top post 200 inside the elastic sleeve 100, the top post 200 can apply an outward pushing force from inside the elastic sleeve 100. Even if the two structural members connected by this connection structure are subjected to a large radial force, the rigid top post 200 can prevent the elastic sleeve 100 from shrinking and deforming, thereby preventing the connection between the two connecting members from falling off.

[0029] Compared with the traditional bolt and nut connection method, this connector only requires screwing the first section 110 of the elastic sleeve 100 into the connection hole 510 of one structural component, and then extending the second section 120 into the interior of another structural component. Relying on the close compression between the two structural components, the top post 200 is pushed into the interior of the second section 120. The expansion of the second section 120 is used to fix it inside the structural component, avoiding the connection operation of tightening bolts and nuts one by one.

[0030] Furthermore, the inner wall of the second segment 120 is provided with a first annular buckle 122, and the end of the extending segment 210 away from the flared segment 220 has a second annular buckle 211. The first annular buckle 122 can be fastened to the second annular buckle 122. At least two first annular buckles 122 are required and are arranged in an array at intervals along the axis of the second segment 120, while the extending segment 210 only needs one second annular buckle 211.

[0031] After the top column 200 and the elastic sleeve 100 are manufactured, the second annular buckle 211 of the insert section 210 can be inserted into the second section 120 through the deformation of the elastic sleeve 100, and the second annular buckle 211 can be fastened to the first annular buckle 122, thereby connecting the top column 200 and the elastic sleeve 100 together, facilitating the overall transportation and use of the top column 200 and the elastic sleeve 100. In this way, on-site construction personnel can directly thread the first section 110 into a structural component, and then directly press the other structural component against the top column 200. The specific usage steps are shown in the entire connection system.

[0032] Furthermore, the flared section 220 has an annular groove 221. When the end of the second section 120 contacts the flared section 220, the second section 120 begins to expand under the action of the flared section 220. After the second section 120 expands to the point where it can engage with the connector, an annular groove is provided at a corresponding position on the flared section 220. The first annular buckle 122 can enter the annular groove 221 to fix the top post 200 and the elastic sleeve 100 together, preventing the top post 200 from detaching from the second section 120 and causing the connection to break.

[0033] Furthermore, in order to accommodate the deformation of the end of the second segment 120 that abuts against the flared segment 220 being greater than the deformation of the end of the second segment 120 that is farther from the end, the expansion opening 121 is correspondingly set to gradually increase in width along the direction away from the first segment 110, so as to accommodate the different deformation amounts of the second segment 120.

[0034] Furthermore, the outer wall of the second segment 120 has a connecting ring buckle 123, which is integrally formed with the second segment 120 of the elastic sleeve 100 and can be machined by turning. Its cross-sectional shape is preferably trapezoidal or triangular. During the connection process, after the first segment 110 of the elastic sleeve 100 is screwed into the connecting hole 510 of the building structure and initially fixed, the second segment 120 with the connecting ring buckle 123 will be opposite to the inner wall of the hole in the external component. As the elastic sleeve 100 expands under the action of the flared section 220 of the top column 200, the connecting ring buckle 123 also expands outwards. This allows the connecting ring buckle 123 to be embedded in a pre-set groove in the inner wall of the hole in the external component, achieving a fastening connection. This method further enhances the axial connection strength between the elastic sleeve 100 and the external structure.

[0035] Therefore, the building connector in this application, on the one hand, prevents the elastic sleeve 100 from being deformed by radial force due to the top column 200, thus preventing the connection mechanism from failing, and on the other hand, after being connected to the building structural member by the connecting ring buckle 123, it can prevent the two connected building structural members from falling off radially from the elastic sleeve 100.

[0036] Furthermore, it also includes a strut 300, which can be connected to the first section 110 by welding or threaded connection. If welding is used, the connection can be achieved by welding the end faces. If threaded connection is used, the outer wall of the strut 300 has external threads, and the interior of the first section 110 has internal threads that are compatible with it, thereby achieving threaded connection. The direction of the external thread of the strut 300 is opposite to the direction of the external thread of the first section 110.

[0037] The outer wall of the strut 300 can abut against the inner wall of the first section 110 so that the strut 300 can support the first section 110 from the inside and prevent the first section 110 from deforming.

[0038] like Figures 6-7 As shown, on the other hand, this utility model also provides a building connection system, including at least two building connectors, and further including a mother plate 400 and a daughter plate 500. Both the mother plate 400 and the daughter plate 500 are plate-shaped structures. The mother plate 400 has a plurality of threaded holes 410, which are evenly distributed on the mother plate 400. The specifications of the threaded holes 410 match the external threads of the first section 110 of the elastic sleeve 100 of the building connector, so that the first section 110 can be threadedly connected into the threaded holes 410. The mother plate 400 can be connected to the connection surface of the first building structure by screws.

[0039] The shape of the sub-plate 500 corresponds to the shape of the mother plate 400. The sub-plate 500 has several connecting holes 510 that correspond one-to-one with those on the mother plate 400. The inner diameter of the connecting holes 510 is larger than the outer diameter of the second section 120 of the elastic sleeve 100 so that the second section 120 of the elastic sleeve 100 can be smoothly inserted. Similarly, the sub-plate 500 can be connected to the connection surface of the second building structure by screws.

[0040] Working principle: First, the first section 110 of the elastic sleeve 100 of the building connector is screwed into the threaded hole 410 of the mother plate 400, achieving an initial connection between the building connector and the mother plate 400. At this time, the support rod 300 supports the first section 110 from the inside, preventing the first section 110 from deforming during subsequent stress. Next, the extension section 210 of the top column 200 is inserted through the end of the second section 120 of the elastic sleeve 100, so that the second annular buckle 211 is fastened to the first annular buckle 122, connecting the top column 200 and the elastic sleeve 100 into one unit, facilitating overall transportation and construction.

[0041] At the construction site, the second section 120 of the building connector, which is connected to the mother plate 400, is inserted into the connection hole 510 of the sub-plate 500. Then, the sub-plate 500 is brought close to and pressed against the mother plate 400, which connects to the first building structure, so that the flared section 220 of the top column 200 gradually enters the second section 120 of the elastic sleeve 100. Since the diameter of the flared section 220 is larger than that of the insertion section 210 and is smoothly connected to the insertion section 210, the flared section 220 will push against the inner wall of the second section 120, causing the second section 120 to expand elastically along the direction of the expansion opening 121. As the second section 120 expands, the connecting ring buckle 123 expands outward and embeds into the preset groove on the inner wall of the connection hole 510 of the sub-plate 500, realizing the fastening. At the same time, the second section 120 is tightly attached to the inner wall of the connection hole 510, increasing the connection friction and fastening force. When the end of the second segment 120 contacts the flared segment 220 and expands to a certain extent, the first annular buckle 122 enters the annular groove 221 of the flared segment 220, fixing the top column 200 and the elastic sleeve 100 together and preventing the top column 200 from detaching. In this way, through the synergistic action of the building connector, the mother plate 400 and the daughter plate 500, a reliable connection between the two building structures is achieved.

[0042] Furthermore, the connecting hole 510 is a tapered hole with a taper range of 3° to 10°, in order to avoid the problem that the side curvature is too large and there are fewer connection points than the connecting hole 510.

[0043] During the installation of the building connection system, the second section 120 of the elastic sleeve 100 is inserted into the small-diameter end of the connection hole 510 of the sub-plate 500. Because the connection hole 510 is tapered, as the second section 120 penetrates deeper into the large-diameter end, the compression between the sub-plate 500 and the mother plate 400 causes the flared section 220 of the top column 200 to gradually enter the second section 120 of the elastic sleeve 100. The diameter of the flared section 220 is larger than that of the inserted section 210, causing the second section 120 to elastically expand along the direction of the expansion opening 121. The tapered connection hole 510 can better accommodate the expansion deformation of the second section 120, ensuring a tight fit between the outer wall of the expanded second section 120 and the inner wall of the connection hole 510. This tight fit provides strong axial connection force while also enhancing radial resistance to external forces, effectively preventing the elastic sleeve 100 from dislodging from the connection hole 510 and maintaining the stability of the building connection system.

[0044] Furthermore, the connecting hole 510 on the sub-plate 500, after being machined into a tapered shape, has several fixing ring buckles 511 machined onto its inner wall. The fixing ring buckles 511 are integrally formed with the inner wall of the connecting hole 510 and can be machined using a turning process. The cross-sectional shape of the fixing ring buckles 511 is designed to match the connecting ring buckles 123 on the second segment 120, such as trapezoidal or triangular, to achieve a tight connection. Their number is determined according to the connection strength requirements, generally evenly distributed on the inner wall of the connecting hole 510, with the spacing reasonably set according to the length of the connecting hole 510 and the width of the fixing ring buckles 511, for example, one every 3-5 mm. The dimensions of the fixing ring buckles 511 match the dimensions of the connecting ring buckles 123 to ensure that they can be fastened together.

[0045] During the insertion of the second section 120 of the elastic sleeve 100 into the small-diameter end of the connecting hole 510, as the second section 120 gradually expands under the action of the flared section 220 of the top post 200, the connecting ring buckle 123 on the second section 120 also expands outward. When the connecting ring buckle 123 aligns with the fixing ring buckle 511 on the inner wall of the connecting hole 510, the two interlock, which helps to further enhance the connection strength between the elastic sleeve 100 and the connecting hole 510 of the sub-plate 500.

[0046] Furthermore, it also includes a blocking plate 600, which is circular or rectangular in shape. The blocking plate 600 can be selected from all the connecting holes 510 on the sub-plate 500, or several blocking plates 600 adapted to the connecting holes 510 can be selected. A blocking plate 600 is welded to the large diameter end of each connecting hole 510.

[0047] During the installation of the building connection system, the second section 120 of the elastic sleeve 100 is first inserted into the small-diameter end of the connection hole 510 of the sub-plate 500. The top post 200 is pre-connected to the elastic sleeve 100 via a ring buckle. Next, after the top post 200 enters the top of the connection hole 510 and abuts against the blocking plate 600, the mother plate 400 is pushed closer to the sub-plate 500. The blocking plate 600 pushes the end of the top post 200, thereby gradually pushing the top post 200 into the second section 120 of the elastic sleeve 100. As the top post 200 goes deeper, the flared section 220 expands the second section 120 of the elastic sleeve 100, causing it to expand and fit tightly against the inner wall of the connection hole 510. At the same time, the connecting ring buckle 123 is fastened to the fixing ring buckle 511, completing the installation of the building connection system.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A building connector, characterized in that, include: The elastic sleeve (100) has a first section (110) and a second section (120) along the axial direction. The first section (110) has an external thread, and the second section (120) has an expansion opening (121) that extends radially through the elastic sleeve (100) and extends axially through the second section (120). The top column (200) has an insertion section (210) and a flared section (220) connected in sequence. The diameter of the flared section (220) is larger than the diameter of the insertion section (210), and the flared section (220) is smoothly connected to the insertion section (210). The insertion section (210) can enter the second section (120) from the end of the second section (120), and the flared section (220) can push the second section (120) to expand when it enters the second section (120).

2. A building connector according to claim 1, characterized in that, The inner wall of the second section (120) is provided with a first ring buckle (122), and the end of the extension section (210) away from the flared section (220) has a second ring buckle (211). The first ring buckle (122) can be fastened to the first ring buckle (122) so that the top post (200) and the elastic sleeve (100) are in a connected state.

3. A building connector according to claim 2, characterized in that, The flared section (220) has an annular groove (221) into which the first annular buckle (122) can enter.

4. A building connector according to claim 1, characterized in that, The width of the expansion opening (121) gradually increases in the direction away from the first segment (110).

5. A building connector according to claim 1, characterized in that, The outer wall of the second segment (120) has a connecting ring buckle (123) for engaging with the inner wall of the hole of the external component.

6. A building connector according to claim 1, characterized in that, Also includes: A strut (300) is connected inside the first section (110), and the strut (300) is capable of supporting the inner wall of the first section (110).

7. A building connection system, characterized in that, The building connector includes at least two of the features described in claim 5, and further includes: A mother plate (400) is used to connect the first building structure. The mother plate (400) has a plurality of threaded holes (410), and the first section (110) is threadedly connected to the threaded holes (410). Sub-plate (500) is used to connect the second building structure. The mother plate (400) has a plurality of connecting holes (510) that correspond one-to-one with the mother plate (400). The inner wall of the connecting hole (510) can be connected to the second section (120) after the second section (120) expands.

8. A building connection system according to claim 7, characterized in that, The connecting hole (510) is a tapered hole, and the inner diameter of the small diameter end of the connecting hole (510) is greater than the outer diameter of the second section (120) before expansion.

9. A building connection system according to claim 7, characterized in that, The inner wall of the connecting hole (510) has a plurality of fixed ring buckles (511) that can engage with the connecting ring buckles (123) on the expanded second section (120).

10. A building connection system according to claim 7, characterized in that, Also includes: A blocking plate (600) is disposed on the sub-plate (500). The blocking plate (600) is located at the large diameter end of the connecting hole (510). The blocking plate (600) can push the top post (200) into the second section (120).

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