Lift-off support structure

By adopting a combined structure of a lift-off buckle cover, lift-off screw, tenon and support column in the lift-off seismic isolation bearing, and utilizing the sliding connection between the tenon and the slot to transmit horizontal shear force, the problem of easy breakage of the lift-off screw is solved, and the service life and structural stability of the bearing are improved.

CN120592365APending Publication Date: 2025-09-05SICHUAN ZHIHE XINXING ROAD & BRIDGE ENG MATERIALS CO LTD
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Patent Information

Application Number
CN202510909491.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-02
Publication Date
2025-09-05

AI Technical Summary

Technical Problem

The existing lifting screw rods for lifting the seismic isolation bearings are prone to fatigue fracture or plastic deformation, resulting in reduced service life and structural stability.

Method used

A combined structure of a lift-off buckle cover, a lift-off screw, a first plate, a lift-off tenon and a support column is adopted. The horizontal shear force is transmitted through the sliding connection between the lift-off tenon and the slot. Combined with multiple connecting parts, the connection stability is improved and the risk of breakage of the lifting screw is reduced.

Benefits of technology

The risk of fracture of the lifting screw is effectively reduced, and the service life and overall stability of the lifting support structure are improved.

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Abstract

The invention discloses a lift-off support structure, and relates to the technical field of supports. According to the main technical scheme, the lifting-off device comprises a lifting-off buckle cover, a lifting-off screw rod, a first plate body, a lifting-off clamping tenon and a supporting column body, wherein a lifting-off clamping groove is formed in one side of the lifting-off buckle cover; the lift-off screw rod is arranged on one side of the lift-off buckle cover; the first plate body is oppositely arranged on one side of the lift-off buckle cover, and the first plate body is connected to the lift-off screw rod in a sliding manner; the lift-off clamping tenon is arranged on the first plate body in a penetrating mode, and the lift-off clamping tenon is connected to the lift-off clamping groove in a sliding mode. The supporting column body is arranged on the side, away from the lift-off buckle cover, of the first plate body, and the supporting column body is connected to the lift-off clamping tenon. When an earthquake occurs, the lift-off clamping tenon is attached to the groove wall of the lift-off clamping groove. At the moment, the lift-off clamping tenon and the lift-off screw rod transmit horizontal shearing force together. The aims of reducing the fracture risk of the lifting screw rod, prolonging the service life of the lift-off support structure and improving the structural stability are expected to be achieved.
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Description

Technical Field

[0001] The present invention relates to the technical field of supports, and in particular to a lift-off support structure. Background Art

[0002] Earthquakes are one of the major natural disasters that seriously endanger human survival and are unpredictable and sudden.

[0003] Existing lift-off isolation bearings often use a single lifting screw to bear horizontal shear forces. Under strong earthquake conditions, due to the complex and concentrated forces, the lifting screw is prone to fatigue fracture or plastic deformation, significantly reducing the service life of the lift-off isolation bearing and the overall stability of the structure. Summary of the Invention

[0004] The purpose of the present invention is to provide a lift-off support structure, which solves the problem that the lifting screw of the existing lift-off seismic isolation support is prone to fatigue fracture or plastic deformation, greatly reducing the service life of the lift-off seismic isolation support and the overall stability of the structure.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A lift-off support structure is provided, including a lift-off buckle cover, a lift-off screw, a first plate, a lift-off tenon and a support column, wherein a lift-off slot is provided on one side of the lift-off buckle cover; the lift-off screw is arranged on one side of the lift-off buckle cover; the first plate is arranged on one side of the lift-off buckle cover, and the first plate is slidably connected to the lift-off screw; the lift-off tenon passes through the first plate, and the lift-off tenon is slidably connected to the lift-off slot; the support column is arranged on the side of the first plate away from the lift-off buckle cover, and the support column is connected to the lift-off tenon.

[0007] A further solution is: the distance between the lifting screw and the first plate is D; the depth of the bottom of the lifting slot is d; wherein D<d.

[0008] A further solution is that: the lift-off support structure further includes a first connecting member; the first connecting member is passed through the lift-off buckle cover.

[0009] A further solution is that: there are a plurality of first connecting members; and the plurality of first connecting members are evenly distributed around the first plate.

[0010] A further solution is that the lift-off support structure further includes a second plate; the second plate is connected to a side of the support column away from the first plate.

[0011] A further solution is that: the lift-off support structure further includes a second connecting member; and the second connecting member is penetrated through the second plate body.

[0012] A further solution is that: there are a plurality of second connecting members; and the plurality of second connecting members are evenly distributed around the supporting column.

[0013] A further solution is that: the lift-off support structure further includes an embedded plate; the embedded plate is arranged on a side of the second plate body away from the support column, and the embedded plate is passed through the second connecting piece.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] During an earthquake, the lift-off latch engages the wall of the lift-off slot. The latch and the lift-off screw then jointly transmit the horizontal shear force. This reduces the risk of the lift-off screw breaking, thereby increasing the service life and structural stability of the lift-off support structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of a lift-off support structure in this embodiment.

[0017] Markings and corresponding parts names in the accompanying drawings:

[0018] 1-lift off the buckle cover; 2-lift off the card slot; 3-lift off the screw; 4-first plate; 5-lift off the tenon; 6-support column; 7-first connecting piece; 8-second plate; 9-second connecting piece; 10-embedded plate; 11-upper pier; 12-lower pier. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Example 1: This example provides a lift-off support structure, such as Figure 1 As shown, it includes a lift-up buckle cover 1, a lift-up screw 3, a first plate 4, a lift-up tenon 5 and a support column 6, wherein a lift-up slot 2 is provided on one side of the lift-up buckle cover 1; the lift-up screw 3 is arranged on one side of the lift-up buckle cover 1; the first plate 4 is relatively arranged on one side of the lift-up buckle cover 1, and the first plate 4 is slidably connected to the lift-up screw 3; the lift-up tenon 5 is passed through the first plate 4, and the lift-up tenon 5 is slidably connected to the lift-up slot 2; the support column 6 is arranged on the side of the first plate 4 away from the lift-up buckle cover 1, and the support column 6 is connected to the lift-up tenon 5.

[0021] For example, in the implementation process, the support column 6 is an existing lead-free / lead-core support. The support column 6 is vertically arranged, and the lower end of the support column 6 is used to be connected to the lower pier 12.

[0022] The lifting tenon 5 is connected to the upper end surface of the support column 6 by welding, screwing, etc.

[0023] The first plate body 4 is connected to the upper end surface of the support column 6 by welding, screwing, etc., and the first plate body 4 is inserted into the lifting tenon 5.

[0024] A lift-off latch 1 is positioned above the first plate 4 and is connected to the upper buttress 11. A lift-off slot 2 is defined on the side of the lift-off latch 1 proximal to the first plate 4. Specifically, a lift-off slot 2 is defined on the lower end surface of the lift-off latch 1. This slot 2 mates with a lift-off tenon 5, and the two are slidably connected.

[0025] The lifting screw 3 is arranged in the first plate 4 and the lifting buckle cover 1 along the first plate 4 in the direction of lifting the buckle cover 1. The lifting screw 3 is connected to the lifting buckle cover 1 by welding, screwing, etc., and the lifting screw 3 is slidably connected to the first plate 4.

[0026] During use, the support column 6 and lift-off cover 1 are connected to the upper buttress 11 and lower buttress 12, respectively. During an earthquake, the lift-off latch 5 engages the wall of the lift-off slot 2. At this point, the lift-off latch 5 and the lift-off screw 3 jointly transmit horizontal shear forces, thereby reducing the risk of the lift-off screw breaking and thereby increasing the service life and structural stability of the lift-off support structure.

[0027] In an optional embodiment, the number of the lifting screws 3 is set to be several, and the several lifting screws 3 are evenly distributed around the support column 6, in order to achieve the purpose of improving the uniformity and strength of the transmitted horizontal shear force.

[0028] Example 2: Based on the above example 1, in this example, Figure 1 As shown, the distance between the lifting screw 3 and the first plate 4 is D; the depth of the lifting slot 2 is d; wherein D<d.

[0029] For example, during implementation, the distance between the end of the lifting screw 3 away from the lifting cover 1 and the first plate 4 is recorded as D. In other words, the distance between the head of the lifting screw 3 and the first plate 4 is D. Distance D represents the distance that the first plate 4 can slide along the lifting screw 3.

[0030] The depth of the lifting slot 2 is d, and the distance d represents the effective sliding depth of the lifting tenon 5 in the lifting slot 2 .

[0031] Where D < d. When the lift-off cover 1 moves to its maximum position away from the first plate 4, the lift-off cover 1 moves a distance D relative to the first plate 4. At this time, the lift-off slot 2 moves a distance D away from the lift-off tenon 5. This ensures that the lift-off tenon 5 is always located within the lift-off slot 2. This is intended to ensure that the lift-off tenon 5 remains within the lift-off slot 2 during an earthquake, thereby reducing the risk of the lift-off tenon 5 detaching from the lift-off slot 2 and effectively ensuring that the lift-off tenon 5 can withstand horizontal shear forces.

[0032] Example 3: Based on the above example 1, in this example, Figure 1 As shown, the lift-off support structure further includes a first connecting member 7 ; the first connecting member 7 is passed through the lift-off buckle cover 1 .

[0033] For example, during implementation, the lift-off support structure further includes a first connector 7. The first connector 7 can be a connection mechanism consisting of riveted steel bars and fastening nuts, or a connection mechanism consisting of anchor sleeves and connecting bolts.

[0034] For example, the first connector 7 includes an anchor sleeve and a connecting bolt. During use, the anchor sleeve is first riveted to the upper buttress 11. Next, the connecting bolt is inserted through the lift-off buckle 1 and the anchor sleeve, and then tightened. This facilitates the connection of the lift-off buckle 1 to the upper buttress 11 using the first connector 7.

[0035] Example 4: Based on the above Example 3, in this example, Figure 1 As shown, there are a plurality of first connecting members 7 ; the plurality of first connecting members 7 are evenly distributed around the first plate body 4 .

[0036] For example, in the implementation process, the number of the first connecting members 7 is set to be several, and the several first connecting members are evenly distributed around the first plate 4, in order to achieve the purpose of improving the connection stability between the lifting buckle cover 1 and the upper pier 11.

[0037] Example 5: Based on the above example 1, in this example, Figure 1 As shown, the lift-off support structure further includes a second plate 8 ; the second plate 8 is connected to a side of the support column 6 away from the first plate 4 .

[0038] For example, during implementation, the lift-off support structure further includes a second plate 8. The second plate 8 is connected to the side of the support column 6 away from the first plate 4 by welding, screwing, or other means. In other words, the second plate 8 is connected to the lower end of the support column 6 by welding, screwing, or other means. This facilitates the connection of the support column 6 to the lower buttress 12 via the second plate 8.

[0039] Example 6: Based on the above Example 5, in this example, Figure 1 As shown, the lift-off support structure further includes a second connecting member 9 ; the second connecting member 9 is penetrated by the second plate 8 .

[0040] Exemplarily, during implementation, the lift-off support structure further includes a second connecting member 9. The second connecting member 9 is provided through the second plate 8. The structure of the second connecting member 9 is the same as that of the first connecting member 7 described above.

[0041] For example, the second connector 9 includes an anchor sleeve and a connecting bolt. During use, the anchor sleeve is first riveted to the lower buttress 12. Next, the connecting bolt is inserted through the second plate 8 and the anchor sleeve and tightened. This facilitates the connection of the second plate 8 to the lower buttress 12 using the second connector 9.

[0042] Example 7: Based on the above Example 6, in this example, Figure 1 As shown, there are several second connecting members 9 , and the several second connecting members 9 are evenly distributed around the supporting column 6 .

[0043] For example, in the implementation process, the number of the second connecting members 9 is set to be several, and the several second connecting members are evenly distributed around the supporting column 6, in order to achieve the purpose of improving the connection stability between the second plate 8 and the lower pier 12.

[0044] Example 8: Based on the above Example 6, in this example, Figure 1 As shown, the lift-off support structure further includes an embedded plate 10 ; the embedded plate 10 is arranged on a side of the second plate body 8 away from the support column 6 , and the embedded plate 10 is passed through the second connecting member 9 .

[0045] Exemplarily, during implementation, the lift-off support structure further includes an embedded plate 10 . The embedded plate 10 is installed on a side of the second plate 8 away from the support column 6 , and the second connecting member 9 is passed through the embedded plate 10 .

[0046] During use, the anchor sleeve and embedded plate 10 are embedded in the lower buttress 12, with the anchor sleeve positioned at the lower end of the embedded plate 10 and aligned with the connection hole in the embedded plate 10. Next, a connecting screw is inserted along the second plate 8 toward the anchor sleeve, through the second plate 8, embedded plate 10, and anchor sleeve, and tightened. This secures the second plate 8 to the embedded plate 10 and secures the embedded plate 10 to the lower buttress 12. Simultaneously, the embedded plate 10 is used to enhance the connection strength between the second plate 8 and the lower buttress 12.

[0047] Although the present invention has been described herein with reference to a number of illustrative embodiments thereof, it will be understood that numerous other modifications and implementations may be devised by those skilled in the art that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the present disclosure, the drawings, and the claims, numerous variations and modifications may be made to the components and / or layout of the subject combination arrangement. In addition to variations and modifications to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A lift-off support structure, characterized in that: include: A lift-off buckle cover (1), wherein a lift-off slot (2) is provided on one side of the lift-off buckle cover (1); A lifting screw (3), the lifting screw (3) being arranged on one side of the lifting buckle cover (1); A first plate (4), the first plate (4) being arranged opposite to one side of the lift-off buckle cover (1), and the first plate (4) being slidably connected to the lift-off screw (3); A lifting tenon (5), the lifting tenon (5) is passed through the first plate (4), and the lifting tenon (5) is slidably connected to the lifting slot (2); A support column (6) is provided on a side of the first plate (4) away from the lift-off buckle cover (1), and the support column (6) is connected to the lift-off tenon (5).

2. The lift-off support structure according to claim 1, wherein: The distance between the lifting screw (3) and the first plate (4) is D; The depth of the lifting card slot (2) is d; Where D<d.

3. The lift-off support structure according to claim 1, wherein: Also includes a first connecting member (7); The first connecting member (7) is passed through the lift-off buckle cover (1).

4. The lift-off support structure according to claim 3, wherein: The number of the first connecting members (7) is set to be several; The plurality of first connecting members (7) are evenly distributed around the first plate body (4).

5. The lift-off support structure according to claim 1, wherein: Also includes a second plate (8); The second plate (8) is connected to a side of the support column (6) away from the first plate (4).

6. The lift-off support structure according to claim 5, wherein: Also includes a second connecting member (9); The second connecting member (9) is passed through the second plate body (8).

7. The lift-off support structure according to claim 6, wherein: The number of the second connecting members (9) is set to be several; The plurality of second connecting members (9) are evenly distributed around the supporting column (6).

8. The lift-off support structure according to claim 6, wherein: Also includes an embedded plate (10); The embedded plate (10) is arranged on a side of the second plate body (8) away from the supporting column (6), and the embedded plate (10) is passed through the second connecting piece (9).

Citation Information

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