A multi-directional displacement combined bridge expansion device

Abstract

The present invention relates to the field of bridge expansion and contraction devices, and in particular to a multi-directional displacement combined bridge expansion and contraction device. The expansion and contraction device comprises a comb plate (1) and an expansion and contraction mechanism fixed thereunder, the expansion and contraction mechanism being fixedly connected to a pre-embedded structure in a bridge beam end, the expansion and contraction mechanism comprising two symmetrically arranged displacement boxes (5), the displacement boxes being connected to both ends of a supporting beam (9); and an axial displacement body (2), the axial displacement body (2) comprising a central rotation axis and an elastic colloid arranged around the rotation axis, the axial displacement body (2) passing through the supporting beam (9), the upper and lower ends of the axial displacement body (2) both being located in a sliding slot and being able to slide in the sliding slot, the sliding slot being a slot on the inner wall of the displacement box (5). A connecting plate (6) is arranged on the outer sides of the two displacement boxes (5), and the expansion and contraction mechanism further comprises a limit spring (7) connected by the connecting plate (6).

Description

Technical Field

[0001] The present invention relates to the field of bridge expansion devices, and in particular to a multi-directional displacement combined bridge expansion device. Background Art

[0002] Bridge expansion joints are a crucial component of bridges. They are a general term for various devices, made of rubber and steel, installed at expansion joints to ensure smooth vehicle movement across the bridge deck and accommodate deformation of the bridge's superstructure. The performance of these devices directly impacts bridge and road safety.

[0003] Displacement boxes are also commonly used items in bridge expansion devices, but over time, the supporting beams in the displacement boxes are prone to falling out or getting stuck, causing the adjustment effect of the bridge expansion joint to fail.

[0004] Because the displacement boxes are located on both sides of the expansion joint, long-term unbalanced deformation will cause the expansion joint adjustment to fail.

[0005] Moreover, displacement boxes were previously mostly located in the field of modular bridge expansion joints, but were not used in the field of comb-tooth expansion joints.

[0006] Because, in order to ensure that the expansion joint is relatively evenly stressed during use and to avoid unbalanced deformation of the devices on both sides of the expansion joint, a new type of expansion joint device or a device that limits the displacement of the supporting beam is needed. Summary of the Invention

[0007] Purpose of the invention: To provide a multi-directional displacement combined bridge expansion device with better effect. The specific purpose can be seen in the multiple substantial technical effects of the specific implementation part.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] Solution 1: An external limit spring is mainly set up to control the overall deformation;

[0010] A multi-directional displacement combined bridge telescopic device is characterized in that the telescopic device includes a comb plate 1 and a telescopic mechanism fixed thereunder, the telescopic mechanism is fixedly connected to the embedded structure in the bridge beam end, the telescopic mechanism includes two symmetrically arranged displacement boxes 5, the displacement boxes overlap the two ends of the supporting beam 9; a connecting plate 6 is arranged on the outer side of the two displacement boxes 5, and it also includes a limit spring 7 connected by the connecting plate 6.

[0011] A further technical solution of the present invention is that the middle portion of the supporting crossbeam 9 also passes through a sliding sleeve 8 .

[0012] A further technical solution of the present invention is that a connecting plate 6 is also included on the side of the sliding sleeve 8 ; and the limiting spring 7 is also connected to the connecting plate 6 .

[0013] A further technical solution of the present invention is that when the sliding sleeve 8 is not included, the limit spring 7 is an integral spring; when the sliding sleeve 8 is included, the limit spring 7 is a multi-section spring.

[0014] A further technical solution of the present invention is that the limit spring 7 and the corresponding connecting plate 6 are arranged on one side of the displacement box 5 or are symmetrically arranged around the displacement box.

[0015] A further technical solution of the present invention is that a horizontal sliding steel plate 3 is provided below the comb plate, and the two horizontal sliding steel plates 3 are staggered and overlapped and can slide freely.

[0016] A further technical solution of the present invention is that an elastic support body 4 is arranged above the sliding sleeve 8, and the elastic support body 4 supports the horizontal sliding steel plate 3 below.

[0017] A further technical solution of the present invention is that the elastic support body 4 includes a plurality of steel materials placed therein and a rubber material covering the steel materials.

[0018] A further technical solution of the present invention is that the steel material is a steel bar or a steel plate.

[0019] Option 2:

[0020] A novel displacement box system is characterized in that a connecting plate 6 is arranged on the outer side of the displacement box 5 and also includes a limit spring 7 connected by the connecting plate 6.

[0021] Option 3:

[0022] A multi-directional displacement combined bridge expansion device, characterized in that the expansion device includes a comb plate 1 and a expansion mechanism fixed thereunder, the expansion mechanism is fixedly connected to the embedded structure in the bridge beam end, the expansion mechanism includes two symmetrically arranged displacement boxes 5, the displacement boxes overlap the two ends of the supporting beam 9; it also includes an axially deformable body 2, the axially deformable body 2 includes a central rotating shaft and an elastic colloid arranged around the rotating shaft, the axially deformable body 2 passes through the supporting beam 9, the upper and lower ends of the axially deformable body 2 are both located in the sliding slot and can slide in the sliding slot, the sliding slot is a slot on the inner wall of the displacement box 5.

[0023] A further technical solution of the present invention is that the sliding slot is an elongated slot, a circular slot or a square slot.

[0024] A further technical solution of the present invention is that the rotation axis in the middle of the shaft-shaped positioner 2 is circular.

[0025] A further technical solution of the present invention is that a gap is included between the rotating shaft and the elastic colloid arranged around the rotating shaft.

[0026] A further technical solution of the present invention is that there is no gap between the rotating shaft and the elastic colloid arranged around the rotating shaft.

[0027] A further technical solution of the present invention is that protrusions are arranged at both ends of the supporting beam 9, and the protrusions can prevent the supporting beam from escaping from the displacement box.

[0028] Option 4:

[0029] An axial displacer is characterized in that the axial displacer comprises a rotating shaft in the middle and an elastic colloid arranged around the rotating shaft.

[0030] Option 5:

[0031] A displacement box is characterized in that the upper inner wall or the lower inner wall of the displacement box includes an upper end or a lower end capable of accommodating the above-mentioned shaft-shaped displacement body.

[0032] Option 6:

[0033] A supporting beam is characterized in that both sides of the supporting beam 9 contain holes for passing the shaft-type displacement body as described above.

[0034] The present invention adopting the above technical solution has the following beneficial effects compared with the prior art: the device includes a comb plate and a telescopic mechanism fixed thereunder, both of which are fixedly connected to the embedded structure in the bridge beam end, and a sliding steel plate is provided under the comb plate, and the two horizontal sliding steel plates are staggered and overlapped and can slide freely; the telescopic mechanism includes two symmetrically arranged displacement boxes, and a supporting beam is provided between the displacement boxes. The supporting beam can realize a multi-directional displacement function through an axial displacement body provided at the end of the beam; an elastic support body is provided between the supporting beam and the tooth plate to prevent the tooth plate from sinking or deformation; a limit spring is provided between the supporting beam and the displacement box to enable the telescopic device to be evenly displaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to further illustrate the present invention, the following is further described with reference to the accompanying drawings:

[0036] Figure 1 A schematic diagram of the invention structure;

[0037] Figure 2 A top view of the structure of the core part of the invention;

[0038] Figure 3 Schematic diagram of the elastic support body;

[0039] Figure 4 It is a schematic diagram of the arrangement of the axial type positioner;

[0040] Figure 5 It is the structural diagram of the axial type displacement body;

[0041] Figure 6 for Figure 1 Unlabeled schematic diagram of ;

[0042] Among them: 1. Comb plate; 2. Axial displacement body; 3. Horizontal sliding steel plate; 4. Elastic support body; 5. Displacement box; 6. Connecting plate; 7. Limit spring; 8. Sliding sleeve; 9. Support beam. DETAILED DESCRIPTION

[0043] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "top", "bottom", etc. is based on the orientation or position relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the internal parts of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0045] This patent provides multiple parallel solutions. The differences in descriptions are improvements or parallel solutions based on the basic solution. Each solution has its own unique characteristics. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. Fixing methods not described in this article can be any fixing method such as threaded fixing, bolt fixing, or gluing.

[0046] Example 1: Combination Figure 1 and Figure 2 ; A multi-directional displacement combined bridge expansion and contraction device, characterized in that the expansion and contraction device includes a comb plate 1 and a expansion and contraction mechanism fixed thereunder, the expansion and contraction mechanism is fixedly connected to the embedded structure in the bridge beam end, the expansion and contraction mechanism includes two symmetrically arranged displacement boxes 5, the displacement boxes overlap the two ends of the supporting beam 9; a connecting plate 6 is arranged on the outer side of the two displacement boxes 5, and also includes a limit spring 7 connected by the connecting plate 6. The substantial technical effects of the technical solution herein and its implementation process, i.e., the basic functions, are as follows: the device comprises a comb plate and a telescopic mechanism fixed thereunder, both of which are fixedly connected to the embedded structure in the end of the bridge beam, a sliding steel plate is provided under the comb plate, and the two horizontal sliding steel plates are staggered and overlapped and can slide freely; the telescopic mechanism comprises two symmetrically arranged displacement boxes, a supporting beam is provided between the displacement boxes, and the supporting beam can realize a multi-directional displacement function through an axial displacement body provided at the end of the beam; an elastic support body is provided between the supporting beam and the tooth plate to prevent the tooth plate from sinking or deformation; a limit spring is provided between the supporting beam and the displacement box to enable the telescopic device to be evenly displaced.

[0047] Example 2: As a further improved solution, a parallel solution, or an optional independent solution, the middle portion of the supporting beam 9 also passes through a sliding sleeve 8. The substantial technical effect and implementation process of this technical solution, i.e., the basic function, are as follows: The sliding sleeve 8 of this embodiment is not essential but may be required when the expansion joint is long.

[0048] Embodiment 3: As a further improved solution, a parallel solution, or an optional independent solution, a connecting plate 6 is also included on the side of the sliding sleeve 8; the limit spring 7 is also connected to the connecting plate 6. The substantial technical effect and implementation process of this technical solution, i.e., the basic function, are as follows: This embodiment provides a specific structure and method for fixing the limit spring. Similar implementations are within the scope of protection of this patent.

[0049] Example 4: As a further improved solution, parallel solution, or optional independent solution, when the sliding sleeve 8 is not included, the limit spring 7 is a single-piece spring; when the sliding sleeve 8 is included, the limit spring 7 is a multi-stage spring. The substantial technical effect and implementation process, i.e., the basic function, of this technical solution are as follows: This embodiment provides multiple specific parallel solutions, primarily for solutions with or without the sliding sleeve 8.

[0050] Example 5: As a further improved solution, a parallel solution, or an optional independent solution, the limit spring 7 and the corresponding connecting plate 6 are arranged on a single side of the displacement box 5 or symmetrically around the displacement box. The substantial technical effect and implementation process of this technical solution, i.e., the basic function, are as follows: The symmetrical arrangement allows the left and right springs to be arranged together.

[0051] Example 6: As a further improved solution or a parallel solution or an optional independent solution, a horizontal sliding steel plate 3 is provided below the comb plate, and the two horizontal sliding steel plates 3 are staggered and overlapped and can slide freely.

[0052] Example 7: As a further improved solution, a parallel solution, or an optional independent solution, an elastic support body 4 is arranged above the sliding sleeve 8, and the elastic support body 4 supports the lower horizontal sliding steel plate 3. The substantial technical effect and implementation process of this technical solution, i.e., the basic function, are as follows: In this embodiment, the lower horizontal sliding steel plate 3 supports the upper horizontal sliding steel plate 3, and the entirety can slide without collapsing, deforming, or being damaged.

[0053] Embodiment 8: As a further improved solution, a parallel solution, or an optional independent solution, the elastic support body 4 includes a plurality of steel materials placed therein and a rubber material covering the steel materials.

[0054] Embodiment 9: As a further improved solution, a parallel solution, or an optional independent solution, the steel material is a steel bar or a steel plate.

[0055] Option 2:

[0056] Example 10: As a further improved solution, parallel solution, or optional independent solution, a new displacement box system is provided, characterized in that a connecting plate 6 is arranged on the outside of the displacement box 5, and also includes a limit spring 7 connected by the connecting plate 6. It should be noted that the solution in this section is an individual solution that can be sold independently, and the solutions in the following sections are all parallel solutions or improved solutions.

[0057] Option 3:

[0058] Example 11: As a further improved scheme or parallel scheme or optional independent scheme, a multi-directional displacement combined bridge expansion and contraction device is characterized in that the expansion and contraction device includes a comb plate 1 and a expansion and contraction mechanism fixed thereunder, the expansion and contraction mechanism is fixedly connected to the embedded structure in the bridge beam end, the expansion and contraction mechanism includes two symmetrically arranged displacement boxes 5, the displacement boxes overlap the two ends of the supporting beam 9; it also includes an axially deformable body 2, the axially deformable body 2 includes a central rotating shaft and an elastic colloid arranged around the rotating shaft, the axially deformable body 2 passes through the supporting beam 9, the upper and lower ends of the axially deformable body 2 are both located in the sliding slot and can slide in the sliding slot, the sliding slot is a groove on the inner wall of the displacement box 5. The substantial technical effect of the technical solution here and its implementation process, that is, the basic function, are as follows: The solution of this embodiment can refer to Figure 3 Go to the last figure; the axial type positioner passes through the supporting beam, and the upper and lower beam ends are embedded in the sliding slots and can slide arbitrarily within the range of the slots; the axial type positioner rotates right and is fluidized or otherwise wrapped with a layer of new elastic colloid. The positioner structure can realize multi-directional positioner function.

[0059] Example 12: As a further improved solution, a parallel solution, or an optional independent solution, the sliding slot is an elongated slot, a circular slot, or a square slot. The substantial technical effect and implementation process of this technical solution, i.e., the basic function, are as follows: The penultimate figure of this embodiment can limit the movement of the support beam.

[0060] Example 13: As a further improved solution, parallel solution or optional independent solution, the rotation axis in the middle of the shaft-shaped displacement body 2 is circular. Under this solution, there are two optional variations of the following embodiments, namely, Example 14 and Example 15.

[0061] Example 14: As a further improved solution, a parallel solution, or an optional independent solution, a gap is included between the rotation axis and the elastic colloid arranged around the rotation axis. The substantial technical effect and implementation process of the technical solution herein, i.e., the basic function, are as follows: This solution facilitates rotational displacement.

[0062] Example 15: As a further improved solution, a parallel solution, or an optional independent solution, there is no gap between the rotating shaft and the elastic colloid arranged around the rotating shaft. The substantial technical effect and implementation process, i.e., the basic function, of this technical solution are as follows: This embodiment is designed for ease of implementation and manufacturing.

[0063] Embodiment 16: As a further improved solution, a parallel solution, or an optional independent solution, protrusions are arranged at both ends of the supporting beam 9, and the protrusions can prevent the supporting beam from escaping from the displacement box.

[0064] Option 4:

[0065] Example 17: As a further improved solution, a parallel solution, or an optional independent solution, an axis-type displacer is provided, characterized in that the axis-type displacer comprises a central rotation axis and an elastic colloid arranged around the rotation axis.

[0066] Option 5:

[0067] Embodiment 18: As a further improved solution or a parallel solution or an optional independent solution, a displacement box is provided, characterized in that the upper inner wall or the lower inner wall of the displacement box includes an upper end or a lower end capable of accommodating the above-mentioned axial displacement body.

[0068] Option 6:

[0069] Example 19: As a further improved solution or a parallel solution or an optional independent solution, a supporting beam is provided, characterized in that both sides of the supporting beam 9 contain holes for passing the shaft-type displacement body as described above.

[0070] The outstanding advantages of this patent are longer service life, low noise, multi-directional displacement, and the support effect of the rubber, which will not cause the expansion joint to deform. In addition, the axial displacement structure has low cost and is easy to produce.

[0071] According to the comparison of general existing technologies, this patent is compared with the existing technologies in detail:

[0072] Transformation ability noise Service life Cost (160 type as an example) 160 refers to the width of the expansion joint is 160mm Production convenience This patent Solve the problem of difficult recovery of fan-shaped displacement and realize multi-directional displacement function in a true sense. (Fan-shaped displacement refers to uneven deformation with one side larger and the other smaller) Measured noise level: 68dB 10 years 4200 yuan per linear meter Simple construction, college Traditional modular Sector-shaped displacement is difficult to recover Measured noise level: 87dB 3 years 3700 yuan per linear meter Simple construction, college Traditional comb type Unable to realize multi-directional displacement function Measured noise level: 81dB 2 years 5300 yuan per linear meter Complex and tedious construction

[0073] In summary:

[0074] The present invention relates to the field of bridge expansion and contraction devices, and in particular to a multi-directional displacement combined bridge expansion and contraction device. The expansion and contraction device comprises a comb plate 1 and an expansion and contraction mechanism fixed thereto. The expansion and contraction mechanism is fixedly connected to a pre-embedded structure in the bridge beam end. The expansion and contraction mechanism comprises two symmetrically arranged displacement boxes 5, which overlap the ends of a supporting beam 9. The expansion and contraction mechanism also comprises an axial displacement body 2, which comprises a central rotation axis and an elastic colloid arranged around the rotation axis. The axial displacement body 2 passes through the supporting beam 9, and the upper and lower ends of the axial displacement body 2 are both located in and can slide within a sliding slot, which is a groove on the inner wall of the displacement box 5. Connecting plates 6 are arranged on the outer sides of the two displacement boxes 5, and also include a limit spring 7 connected by the connecting plate 6. Horizontal sliding steel plates 3 are arranged below the comb plates. The two horizontal sliding steel plates are staggered and overlapped and can slide freely. An elastic support body 4 is provided between the sliding steel plates and the supporting beam to reduce vibration and noise and prevent the tooth plates from sinking.

[0075] Innovatively, each of the above effects exists independently, and a set of structures can be used to combine the above results.

[0076] It should be noted that the multiple solutions provided by this patent include the basic solutions themselves, are independent of each other, and do not restrict each other, but they can also be combined with each other without conflict to achieve multiple effects together.

[0077] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications are intended to fall within the scope of the claims.

Claims

1. A multi-directional displacement combined bridge expansion device, characterized in that: The telescopic device comprises a comb plate (1) and a telescopic mechanism fixed thereunder, the telescopic mechanism being fixedly connected to a pre-buried structure in the end of the bridge beam, the telescopic mechanism comprising two symmetrically arranged displacement boxes (5), the displacement boxes being connected to the two ends of the supporting beam (9); and further comprising an axially deformable body (2), the axially deformable body (2) comprising a central rotating shaft and an elastic colloid arranged around the rotating shaft, the axially deformable body (2) passing through the supporting beam (9), the upper end and the lower end of the axially deformable body (2) both being located in a sliding slot and being able to slide in the sliding slot, the sliding slot being a slot on the inner wall of the displacement box (5); A connecting plate (6) is arranged on the outer sides of the two displacement boxes (5), and also includes a limit spring (7) connected by the connecting plate (6); The middle portion of the supporting crossbeam (9) also passes through a sliding sleeve (8); a connecting plate (6) is also included on the side of the sliding sleeve (8); and a limit spring (7) is also connected to the connecting plate (6); The limit spring (7) is a multi-stage spring; The shaft-type positioner is composed of a rotating shaft and a layer of elastic colloid wrapped by vulcanization or other methods. The shaft-type positioner can realize a multi-directional position displacement function.

2. The multi-directional displacement combined bridge expansion device according to claim 1, characterized in that: The sliding slot is a long strip slot, a circular slot or a square slot.

3. The multi-directional displacement combined bridge expansion device according to claim 1, characterized in that: The rotation axis in the middle of the shaft-type positioner (2) is circular.

4. The multi-directional displacement combined bridge expansion device according to claim 1, characterized in that: There is a gap or no gap between the rotating shaft and the elastic colloid arranged around the rotating shaft.

5. The multi-directional displacement combined bridge expansion device according to claim 1, characterized in that: The upper inner wall or the lower inner wall of the displacement box comprises a sliding slot capable of accommodating the upper end or the lower end of the shaft-shaped positioner.

6. The multi-directional displacement combined bridge expansion device according to claim 1, characterized in that: Both ends of the support beam (9) are provided with protrusions, which can prevent the support beam from escaping from the displacement box; both sides of the support beam (9) contain holes for passing the shaft-type displacement body.

7. The multi-directional displacement combined bridge expansion device according to claim 6, characterized in that: The limit spring (7) and the corresponding connecting plate (6) are arranged on one side of the displacement box (5) or are symmetrically arranged around the displacement box.

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