Anti-torsion tensile support

Abstract

An anti-torsion tensile support comprises a top plate, a bottom plate, an upper lining plate and a tensile shaft, the top plate, the bottom plate and the upper lining plate are connected through the tensile shaft, the upper lining plate is arranged between the top plate and the bottom plate, and a supporting part used for supporting the upper lining plate is arranged on the bottom plate. The top plate is provided with a plurality of check blocks, the check blocks are arranged around the supporting part at intervals, grooves corresponding to the check blocks are formed in the lower surface of the top plate, and a gap is formed between each check block and the corresponding groove in the state that each check block is inserted into the corresponding groove. The tensile support has the advantages that the tensile support achieves the tensile function through the tensile shaft; through cooperation of the stop blocks of the bottom plate and the grooves of the top plate, relative torsion between the top plate and the bottom plate is avoided, and the tensile support can resist torsion; in the state that each check block is inserted into the corresponding groove, a certain gap is formed between each check block and the corresponding groove, and it is guaranteed that the upper lining plate can rotate normally.

Description

Technical Field

[0001] The utility model relates to the technical field of bridges, in particular to an anti-torsion tensile support. Background Art

[0002] Bridge bearings are important structural components that connect the upper and lower structures of bridges. Bridge bearings can transfer the reaction force and deformation of the upper structure of bridges to the lower structure, and are important force transmission devices of bridges. Tensile bearings are a type of bridge bearings that can withstand both vertical pressure and vertical tension. However, the existing tensile bearings have poor torsional resistance, that is, the tensile bearings have poor performance in preventing relative torsion between the upper bearing plate and the lower bearing plate.

[0003] In response to the above problems, the existing bridge bearings have anti-torsion properties by setting an anti-torsion structure between the upper bearing plate and the lower bearing plate. The anti-torsion structure of the bridge bearing is shown in the Chinese utility model "A bridge bearing with anti-tensile and anti-torsion functions" with patent number CN202022234254.3 (authorization announcement number CN214301236U). The anti-tensile and torsion structure components are arranged between the bearing top plate and the bearing bottom plate, and the anti-tensile and torsion structure components are arranged on both sides of the bearing body along the transverse direction of the bridge, and the top of the anti-tensile and torsion structure components is connected to the bearing top plate through the tensile anchor bolts embedded in the bearing top plate, and the bottom of the anti-tensile and torsion structure components is connected to the bearing bottom plate through the tensile lower bolts, so that the bridge bearing can resist the bridge tension and torque loads.

[0004] Although the above-mentioned bridge bearing can resist tension and torsion, the tensile and torsion-resistant structural components in the bridge bearing are numerous, making the structure of the bridge bearing complex and inconvenient to produce and use; and the top and bottom of the tensile and torsion-resistant structural components are respectively connected to the top and bottom plates of the bearing by anchor bolts or bolts. If the tensile force or torque load borne by the bridge bearing is too large, the tensile and torsion-resistant structural components, anchor bolts or bolts may be damaged and deformed, thereby affecting the tensile or torsion-resistant performance of the bridge bearing. For this reason, further improvements are made to the tensile bearing that resists torsion. Summary of the invention

[0005] The first technical problem to be solved by the present invention is to provide a simple and torsion-resistant tensile structure in view of the above-mentioned existing technical status, wherein the torsion-resistant component and the tensile support are an integrated structure.

[0006] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: the anti-torsion tensile support includes a top plate, a bottom plate, an upper lining plate and a tensile shaft, the top plate, the bottom plate and the upper lining plate are connected by the tensile shaft, the upper lining plate is arranged between the top plate and the bottom plate, and the bottom plate is provided with a supporting part for supporting the upper lining plate, characterized in that: the bottom plate extends upward to form a plurality of blocks, and the plurality of blocks are arranged at intervals around the supporting part, and a groove corresponding to the block is provided on the lower surface of the top plate, and when each block is inserted into the corresponding groove, there is a gap between the block and the corresponding groove.

[0007] In order to enable the stopper to be inserted into the groove, preferably, the lower surface of the top plate is provided with an annular protrusion extending downward, the groove is provided on the lower surface of the annular protrusion, the annular protrusion and the top plate form a circular cavity, the support portion is cylindrical, and the upper lining plate and the support portion can be installed in the cavity. The groove is provided on the annular protrusion of the top plate, so that the stopper of the bottom plate is conveniently inserted into the groove, and the annular protrusion and the top plate form a cavity for the upper lining plate and the support portion to be inserted, so that the tensile support can be installed more accurately.

[0008] In order to enable the support part to support the upper lining plate, preferably, the top of the support part is provided with an arc groove matching the upper lining plate, and the upper lining plate is installed in the arc groove. The arc groove of the support part abuts against the arc surface of the upper lining plate, so that the upper lining plate can not only rotate in the arc groove of the support part, but also the force borne by the upper lining plate can be evenly transmitted to the support part.

[0009] In order to make the tensile shaft resistant to pulling, preferably, the tensile shaft comprises a shaft body and a base arranged at the bottom of the shaft body, the top of the shaft body is provided with a thread, the center of the top plate is provided with a screw hole, the shaft body passes through the bottom plate and the upper lining plate in sequence and is inserted into the screw hole, the shaft body is threadedly connected with the top plate, the bottom of the bottom plate is provided with a mounting groove for mounting the tensile shaft, and the mounting groove can clamp the base. The shaft body of the tensile shaft connects the top plate, the bottom plate and the upper lining plate, the base of the tensile shaft is clamped in the mounting groove of the bottom plate, the top plate and the bottom plate can resist the tensile force through the tensile shaft, and the support has the function of resisting tensile force.

[0010] In order to allow the shaft to pass through the bottom plate and the upper lining plate, preferably, the bottom plate is provided with a first through hole, the upper lining plate is provided with a second through hole, the first through hole and the second through hole are both arranged corresponding to the screw hole, the first through hole is connected to the mounting groove, the shaft passes through the first through hole and the second through hole in sequence and then is inserted into the screw hole, so that the shaft is threadedly connected to the top plate. The shaft passes through the first through hole and the second through hole, thereby passing through the bottom plate and the upper lining plate, and the upper lining plate can rotate through the second through hole.

[0011] In order to prevent the base of the tensile shaft from abutting against the groove wall of the installation groove and causing damage, preferably, a lower lining plate is further provided in the installation groove, and a third through hole for the shaft body to pass through is provided on the lower lining plate, and the third through hole is arranged corresponding to the first through hole of the bottom plate, and the shaft body passes through the third through hole so that the lower lining plate is installed above the base. The lower lining plate can be arranged between the base and the groove wall of the installation groove, thereby preventing the base of the tensile shaft from directly contacting the groove wall of the installation groove, thereby protecting the tensile shaft and the bottom plate.

[0012] Compared with the prior art, the advantages of the utility model are: the tensile support realizes the tensile function through the tensile shaft; and the bottom plate of the tensile support is provided with a plurality of blocks around the support part, the blocks and the bottom plate are an integral structure, and a groove is provided on the top plate, the blocks can be inserted into the groove, and the cooperation between the blocks of the bottom plate and the groove of the top plate avoids relative torsion between the top plate and the bottom plate, so that the tensile support can resist torsion, and the anti-torsion assembly composed of the blocks and the grooves is an integral structure with the tensile support, so that the anti-torsion performance of the tensile support is more stable; in addition, when each block is inserted into the corresponding groove, there is a certain gap between the block and the groove, thereby ensuring that the upper lining plate can rotate normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0014] Figure 2 It is an exploded schematic diagram of an embodiment of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the top plate in the embodiment of the utility model;

[0016] Figure 4 It is a cross-sectional view of an embodiment of the utility model. DETAILED DESCRIPTION

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0018] like Figures 1 to 4 Shown is the best embodiment of the utility model.

[0019] like Figures 1 to 4As shown, the tensile support of this embodiment includes a top plate 1, a bottom plate 2, an upper lining plate 3, a tensile shaft 4 and a lower lining plate 5. The top plate 1, the bottom plate 2, the upper lining plate 3 and the lower lining plate 5 are connected by the tensile shaft 4, and the tensile function is realized by the tensile shaft 4. The upper lining plate 3 is arranged between the top plate 1 and the bottom plate 2. The bottom plate 2 is provided with a supporting portion 21 for supporting the upper lining plate 3. The supporting portion 21 is cylindrical. The top of the supporting portion 21 is provided with an arc-shaped groove 211 matching the upper lining plate 3. The upper lining plate 3 is installed in the arc-shaped groove 211, and the upper lining plate 3 can rotate relative to the supporting portion 21. The bottom plate 2 extends upward to form four blocks 22, which are arranged at intervals around the support portion 21. The lower surface of the top plate 1 is provided with an annular protrusion 12 extending downward, and the lower surface of the annular protrusion 12 is provided with a groove 11 corresponding to the block 22. When each block 22 is inserted into the corresponding groove 11, there is a gap between the block 22 and the corresponding groove 11, which not only avoids relative torsion between the top plate 1 and the bottom plate 2, but also ensures that the upper lining plate 3 can rotate normally. In addition, the annular protrusion 12 and the top plate 1 form a circular cavity 13, and the upper lining plate 3 and the support portion 21 can be installed in the cavity 13, so that the installation of the tensile support is more accurate.

[0020] like Figure 2 and Figure 3 As shown, the tensile shaft 4 of this embodiment includes an axis body 41 and a base 42 arranged at the bottom of the axis body 41, the top end of the axis body 41 is provided with a thread, the center of the top plate 1 is provided with a screw hole 14, the bottom plate 2 is provided with a first through hole 24, and the upper lining plate 3 is provided with a second through hole 31. The upper lining plate 3 rotates in the arc groove 211 through the second through hole 31. The first through hole 24 and the second through hole 31 are both arranged corresponding to the screw hole 14. The axis body 41 passes through the first through hole 24 of the bottom plate 2 and the second through hole 31 of the upper lining plate 3 in sequence and then is inserted into the screw hole 14. The axis body 41 is threadedly connected to the top plate 1, and the top plate 1 and the bottom plate 2 can resist tension through the tensile shaft 4, so that the support has a tensile function, and the bottom plate 2 A mounting groove 23 for mounting the tensile shaft 4 is provided at the bottom, and the first through hole 24 is connected to the mounting groove 23. The lower lining plate 5 is arranged in the mounting groove 23. The lower lining plate 5 is provided with a third through hole 51 for the shaft body 41 to pass through. The third through hole 51 is arranged corresponding to the first through hole 24 of the bottom plate 2. The shaft body 41 passes through the third through hole 51, the first through hole 24, and the second through hole 31 in sequence and is threadedly connected to the top plate 1. The lower lining plate 5 is installed above the base 42. The mounting groove 23 can clamp the base 42. The lower lining plate 5 can be arranged between the base 42 and the groove wall of the mounting groove 23, thereby avoiding direct contact between the base 42 of the tensile shaft 4 and the groove wall of the mounting groove 23, thereby protecting the tensile shaft 4 and the bottom plate 2.

[0021] The working process of the tensile support of this embodiment is as follows: first, the upper lining plate 3 is installed in the arc groove 211 of the support part 21, and the support part 21 and the upper lining plate 3 are inserted into the cavity 13 of the top plate 1, and the four blocks 22 of the bottom plate 2 are respectively inserted into the corresponding grooves 11; then the lower lining plate 5 is installed in the installation groove 23 of the bottom plate 2, so that the third through hole 51 of the lower lining plate 5 is aligned with the first through hole 24; finally, the shaft body 41 of the tensile shaft 4 is inserted into the screw hole 14 of the top plate 1 after passing through the third through hole 51, the first through hole 24, and the second through hole 31 in sequence, and is threadedly connected with the top plate 1, and the base 42 of the tensile shaft 4 is installed in the installation groove 23, and the installation groove 23 clamps the base 42, thereby completing the installation of the tensile support. The base 42 of the tensile shaft 4 can resist vertical tension, and the anti-torsion assembly composed of the block 22 and the groove 11 can resist torsional load.

[0022] The tensile bearing of this embodiment forms an anti-torsion structure by setting a groove 11 on the top plate 1 and a stop block 22 on the bottom plate 2 to meet the requirements of bridges and buildings that require anti-torsion fixed tensile bearings. The tensile bearing of this embodiment will be used in situations where the top plate and bottom plate of the bearing are subjected to relative torsion.

Claims

1. A torsion-resistant tensile support, comprising a top plate (1), a bottom plate (2), an upper lining plate (3) and a tensile shaft (4), wherein the top plate (1), the bottom plate (2) and the upper lining plate (3) are connected via the tensile shaft (4), the upper lining plate (3) is arranged between the top plate (1) and the bottom plate (2), and the bottom plate (2) is provided with a supporting portion (21) for supporting the upper lining plate (3), characterized in that: The bottom plate (2) extends upward to form a plurality of stoppers (22), the plurality of stoppers (22) being arranged at intervals around the support portion (21), a groove (11) corresponding to the stoppers (22) being provided on the lower surface of the top plate (1), and when each stopper (22) is inserted into the corresponding groove (11), a gap exists between the stopper (22) and the corresponding groove (11).

2. The tensile support according to claim 1, characterized in that: The lower surface of the top plate (1) is provided with an annular protrusion (12) extending downward, the groove (11) is arranged on the lower surface of the annular protrusion (12), the annular protrusion (12) and the top plate (1) form a circular cavity (13), the support portion (21) is cylindrical, and the upper lining plate (3) and the support portion (21) can be installed in the cavity (13).

3. The tensile support according to claim 1, characterized in that: The top of the support portion (21) is provided with an arc-shaped groove (211) matching the upper lining plate (3), and the upper lining plate (3) is installed in the arc-shaped groove (211).

4. The tensile support according to claim 1, characterized in that: The tensile shaft (4) comprises an axis body (41) and a base (42) arranged at the bottom of the axis body (41); the top end of the axis body (41) is provided with a thread; the center of the top plate (1) is provided with a screw hole (14); the axis body (41) passes through the bottom plate (2) and the upper lining plate (3) in sequence and is inserted into the screw hole (14); the axis body (41) is threadedly connected to the top plate (1); the bottom of the bottom plate (2) is provided with a mounting groove (23) for mounting the tensile shaft (4); the mounting groove (23) can clamp the base (42).

5. The tensile support according to claim 4, characterized in that: The bottom plate (2) is provided with a first through hole (24), and the upper lining plate (3) is provided with a second through hole (31). The first through hole (24) and the second through hole (31) are both arranged corresponding to the screw hole (14). The first through hole (24) is connected to the mounting groove (23). The shaft body (41) passes through the first through hole (24) and the second through hole (31) in sequence and is then inserted into the screw hole (14), so that the shaft body (41) is threadedly connected to the top plate (1).

6. The tensile support according to claim 4, characterized in that: A lower lining plate (5) is also provided in the installation groove (23), and a third through hole (51) is provided on the lower lining plate (5) for the shaft body (41) to pass through. The third through hole (51) is arranged corresponding to the first through hole (24) of the bottom plate (2), and the shaft body (41) passes through the third through hole (51) so that the lower lining plate (5) is installed above the base (42).

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