Multi-directional displacement telescopic device facilitating maintenance of anti-springboard

Abstract

The utility model relates to the technical field of bridge expansion devices, and provides a multidirectional displacement expansion device convenient for maintenance of an anti-springboard, which comprises a main toothed plate and an auxiliary toothed plate which are respectively arranged on a left beam body and a right beam body, and a box shell is positioned below the main toothed plate; the upper displacement hinge is located on the upper portion in the box shell and connected with the main toothed plate through a connecting bolt. The lower displacement hinge is located below the upper displacement hinge and hinged to the upper displacement hinge to form a displacement hinge assembly, and the main toothed plate is arranged on the left side beam body through the displacement hinge assembly and the box shell. The upper end of the pressure spring acts on the main toothed plate and the lower end acts on the inner bottom side of the box shell; the anchoring sleeves are located below the auxiliary toothed plate and used for being fixed to the beam body on the right side, the auxiliary toothed plate is in threaded connection with the anchoring sleeves through anti-loosening bolts, anti-collision plates are arranged on the side, making contact with concrete, of the main toothed plate and the auxiliary toothed plate, and the anti-collision plates are connected with the box shell and the steel base plate through L-shaped steel plates correspondingly. According to the technical scheme, the problems that the anti-springboard warps to cause bumping and is not easy to maintain and replace are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge expansion and contraction devices, in particular to a multi-directional displacement expansion and contraction device which is convenient for maintaining an anti-jump board. Background Art

[0002] Bridge expansion joints are essential components of bridge structures, connecting two beams. They adapt to changes in beam displacement caused by temperature, wind, creep, and other factors. They also need to protect the beam ends from damage caused by traffic and provide a comfortable driving environment.

[0003] The commonly used multi-directional displacement comb plate telescopic device has the advantages of multi-directional displacement and partial replacement of units, but it has the following main shortcomings:

[0004] 1. The comb plate and concrete are anchored with anchor rods and nuts. When replacing the comb plate or anchor rod, the concrete needs to be broken open and the cross-reinforcement needs to be cut off, making replacement difficult.

[0005] 2. The anchor bolts on the main tooth plate side can easily cause the tooth plate to warp and cause the car to jump when the car passes, which may cause certain damage to the car tires and cause rollover and other fatal accidents;

[0006] 3. A row of anchor bolts set on one side of the main tooth plate resist each other in the vertical displacement of the main tooth plate, making it easy to be damaged;

[0007] 4. When the front and rear wheels of a vehicle pass over the expansion joint, the expansion joint generates structural noise, and the vehicle jumps at the expansion joint, which generates low-frequency noise similar to the vibration of the bridge deck;

[0008] 5. Although a stainless steel plate is provided on one side of the auxiliary tooth plate, the repeated impact and friction between the tooth plate and the stainless steel plate under the repeated action of the vehicle may cause the stainless steel plate to deform easily, thereby increasing the horizontal friction resistance of the telescopic device.

[0009] In view of the above-mentioned existing technical status, a multi-directional displacement telescopic device is provided for facilitating maintenance of the anti-jump board, which solves the problem of the anti-jump board jumping due to warping and is difficult to maintain and replace. Utility Model Content

[0010] The technical problem to be solved by the present invention is to provide a multi-directional displacement telescopic device for facilitating maintenance of the anti-jump board, in view of the above-mentioned technical deficiencies, which solves the problem of vehicle jumping caused by warping of the anti-jump board and the difficulty in maintenance and replacement.

[0011] The technical solution adopted by the utility model is to provide a multi-directional displacement telescopic device for facilitating the maintenance of the anti-jump board, comprising a main tooth plate and an auxiliary tooth plate respectively arranged on the left and right side beam bodies, and also comprising:

[0012] A box shell is located below the main gear plate and is used to be fixed on the left beam body;

[0013] An upper shift hinge is located at the upper part of the box shell, and the upper shift hinge is connected to the main gear plate via a connecting bolt;

[0014] A lower displacement hinge is provided in the box shell, is located below the upper displacement hinge, and is hingedly connected with the upper displacement hinge to form a displacement hinge assembly. The main tooth plate is provided on the left beam body through the displacement hinge assembly and the box shell;

[0015] A compression spring is located inside the box shell and on the left side of the variable position hinge assembly. The compression spring is a disc spring or a coil spring. The upper end of the compression spring acts on the main tooth plate, and the lower end acts on the bottom side of the box shell to provide a force for the right part of the main tooth plate to approach the upper end of the right beam body;

[0016] There are several anchoring sleeves located below the auxiliary tooth plate and used to be fixed on the beam body on the right side. The auxiliary tooth plate is threadedly connected to the anchoring sleeve through an anti-loosening bolt, and the outer side of the anchoring sleeve has an annular positioning groove.

[0017] Further optimization of this technical solution also includes:

[0018] A connecting plate is located below the main tooth plate, wherein the lower end of the connecting plate is connected to the upper end of the compression spring, the connecting plate is connected to the main tooth plate via a connecting bolt, and the upper end of the compression spring acts on the main tooth plate via the connecting plate.

[0019] Further optimization of this technical solution also includes:

[0020] A vibration-damping rubber plate is provided between the connecting plate and the main tooth plate, and is also provided between the upper displacement hinge and the main tooth plate.

[0021] Further optimization of this technical solution also includes:

[0022] The sound insulation cotton is arranged at the lower end of the main tooth plate, located on the right side of the box shell, and located in the middle seam between the two beams.

[0023] Further optimization of this technical solution also includes:

[0024] There are two C-shaped steels, which are respectively located on the left and right sides of the lower end of the sound insulation cotton;

[0025] The waterproof plate is located below the sound insulation cotton and is connected to the C-shaped steel on both sides on the left and right sides respectively.

[0026] Further optimization of this technical solution also includes:

[0027] A stainless steel plate, located on the lower side of the auxiliary gear plate;

[0028] A steel plate is located on the lower side of the stainless steel plate, the steel plate and the stainless steel plate are welded together, the stainless steel plate and the steel plate are located between the auxiliary tooth plate and the anchor sleeve, and the stainless steel plate and the steel plate are located on the upper side of the beam on the right side.

[0029] To further optimize the technical solution, the tooth profiles of the main tooth plate and the auxiliary tooth plate are saw-shaped teeth, trapezoidal teeth, or circular teeth.

[0030] Further optimization of this technical solution also includes:

[0031] The U-shaped steel bar is arranged at the lower end of the steel base plate and is used for anchoring with the concrete.

[0032] Further optimization of this technical solution also includes:

[0033] An anchor plate is arranged on the left side of the box shell and is used for anchoring with concrete.

[0034] Further optimization of this technical solution also includes:

[0035] Anti-collision plate, the outer side of the main tooth plate and the auxiliary tooth plate are both provided with the anti-collision plate, the anti-collision plate arranged on the outer side of the main tooth plate is connected to the box shell through an L-shaped steel plate, and the anti-collision plate arranged on the outer side of the auxiliary tooth plate is connected to the steel backing plate through an L-shaped steel plate

[0036] The beneficial effects of the present invention are:

[0037] 1. The main tooth plate is installed on one side of the beam through a displacement hinge assembly and can be easily replaced through connecting bolts. A row of fixing bolts is eliminated, eliminating the constraint of the fastening bolts on the main tooth plate. The main tooth plate can rotate vertically to achieve the displacement function. At the same time, the setting of the compression spring provides an upward force. Under the action of the lever, the main tooth plate is pressed downward, reducing the warping of the main tooth plate, playing the role of an anti-jump board, and reducing the problem of vehicle jumping.

[0038] 2. The auxiliary tooth plate is threadedly connected to the anchor sleeve through anti-loosening bolts. The connection is stable and convenient for disassembly and replacement. Both the main tooth plate and the auxiliary tooth plate can be quickly replaced without breaking the concrete structure of the beam.

[0039] 3. It effectively damps the vibration of the tooth plate when the vehicle passes through the expansion joint of the bridge, effectively absorbs the noise generated by the tooth plate, and can adapt to the multi-directional deformation of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of the bottom perspective structure of the present invention;

[0041] Figure 2This is a schematic diagram of the structure of the utility model from above;

[0042] Figure 3 This is a schematic diagram of the top view of the box shell installation structure of the utility model;

[0043] Figure 4 It is a schematic diagram of the vertical cross-section structure of the utility model;

[0044] Figure 5 For the utility model Figure 4 A schematic diagram of the partially enlarged structure at point a in the middle;

[0045] Figure 6 This is a schematic diagram of the internal structure of the box shell of the present utility model;

[0046] Explanation of the marks in the figure: 1. Main tooth plate; 2. Auxiliary tooth plate; 3. Box shell; 301. Fixed plate; 302. Vertical plate; 4. Displacement hinge assembly; 401. Upper displacement hinge; 402. Lower displacement hinge; 5. Connecting bolt; 6. Compression spring; 601. Connecting plate; 7. Anchor sleeve; 701. Positioning groove; 8. Anti-loosening bolt; 9. Vibration-damping rubber plate; 10. Sound insulation cotton; 11. C-shaped steel; 12. Waterproof board; 13. Stainless steel plate; 14. Steel pad; 15. U-shaped steel bar; 16. Anchor plate; 17. Anti-collision plate; 18. L-shaped steel plate. DETAILED DESCRIPTION

[0047] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0048] To simplify the drawings, only the parts relevant to the utility model are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0049] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0050] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0051] like Figure 1-6 As shown, a multi-directional displacement telescopic device for facilitating maintenance of an anti-jump board comprises a main tooth plate 1 and an auxiliary tooth plate 2 respectively arranged on the left and right beam bodies, and further comprises: a box shell 3 located below the main tooth plate 1, the box shell 3 being used to be fixed to the left beam body; an upper displacement hinge 401 located above the box shell 3, the upper displacement hinge 401 being connected to the main tooth plate 1 by a connecting bolt 5; a lower displacement hinge 402 being arranged in the box shell 3, located below the upper displacement hinge 401, and being hinged to the upper displacement hinge 401 to form a displacement hinge assembly 4, the main The tooth plate 1 is mounted on the left side of the beam via the displacement hinge assembly 4 and the housing 3. A compression spring 6 is located within the housing 3 and to the left of the displacement hinge assembly 4. The upper end of the compression spring 6 acts on the main tooth plate 1, while the lower end acts on the inner bottom of the housing 3, providing force to hold the right portion of the main tooth plate 1 close to the upper end of the right side of the beam. Several anchor sleeves 7 are located below the auxiliary tooth plate 2 and are used to secure the main tooth plate 1 to the right side of the beam. The auxiliary tooth plate 2 is threadedly connected to the anchor sleeve 7 via a locking bolt 8. The outer side of the anchor sleeve 7 has an annular positioning groove 701. The tooth profiles of the main and auxiliary tooth plates 1 and 2 are serrated, trapezoidal, or circular.

[0052] When in use, the box shell 3 can be fixed to the beam body on the left side by anchoring steel bars. The connecting bolt 5 passes through the main tooth plate 1 and is threadedly connected to the upper displacement hinge 401, so that the main tooth plate 1 is fixedly connected to the upper displacement hinge 401. The lower displacement hinge 402 can be connected to the bottom side of the box shell 3 by bolts, which is convenient for disassembly and maintenance. The displacement hinge assembly 4 constitutes the rotating shaft support position of the main tooth plate 1. The main tooth plate 1 can rotate vertically to achieve a truly variable position function. The upper displacement hinge 401 and the lower displacement hinge 402 are hinged by a lifting ear structure. The two can be connected by a through shaft (or bolt, etc.) plus a pin or nut. The compression spring 6 is set on the left side of the box shell 3 to provide an upward force on the left side of the main tooth plate 1. Under the action of the lever, the right side of the main tooth plate 1 maintains a downward trend to reduce warping. When one side of the main tooth plate 1 needs to be replaced and repaired, just remove the connecting bolt 5.

[0053] Anchor sleeve 7 can be fixed to the right beam body. Anti-loosening bolt 8 passes through auxiliary gear plate 2 and is threadedly connected to anchor sleeve 7 to secure auxiliary gear plate 2. For replacement and maintenance, only anti-loosening bolt 8 needs to be removed. Multiple anchor sleeves 7 can be provided, distributed in a sequentially spaced array. It is understood that anti-loosening bolt 8 and connecting bolt 5 are both a form of bolt connection and are conventional parts. The specific bolt type and model can be selected according to needs. For example, anti-loosening bolt 8 is used in both cases.

[0054] The matching form of the main tooth plate 1 and the auxiliary tooth plate 2 is the existing technology. The left part of the main tooth plate 1 is located on the left beam body, and the right part is located on the right beam body.

[0055] The housing 3 includes a bottom fixing plate 301 and surrounding vertical plates 302, which prevent concrete from entering the housing 3. As shown in the figure, the number of variable hinge assemblies 4 can be adjusted based on the size of the main tooth plate 1. Multiple variable hinge assemblies 4 can be evenly spaced on the underside of the main tooth plate 1. Multiple housings 3 can be fixed to the beam body using anchor bars.

[0056] Furthermore, it also includes: a connecting plate 601, located below the main tooth plate 1, the lower end of the connecting plate 601 is connected to the upper end of the compression spring 6, the connecting plate 601 is connected to the main tooth plate 1 through the connecting bolt 5, and the upper end of the compression spring 6 acts on the main tooth plate 1 through the connecting plate 601.

[0057] During use, compression spring 6 acts on main gear plate 1 via connecting plate 601. Connecting plate 601 and main gear plate 1 are connected by connecting bolts 5, facilitating maintenance and replacement. Connecting bolts 5 thread through main gear plate 1 and connect to connecting plate 601. The lower end of connecting plate 601 can be fixedly connected to compression spring 6 or in a mutually abutting position, both of which can generate upward thrust. Guide posts can be provided on fixed plate 301 and located within compression spring 6.

[0058] Furthermore, it also includes: a vibration-damping rubber plate 9 , a vibration-damping rubber plate 9 is provided between the connecting plate 601 and the main tooth plate 1 , and a vibration-damping rubber plate 9 is also provided between the upper displacement hinge 401 and the main tooth plate 1 .

[0059] When in use, the vibration-damping rubber plate 9 has a buffering effect and can reduce noise.

[0060] Furthermore, it also includes: sound insulation cotton 10, which is arranged at the lower end of the main tooth plate 1, located on the right side of the box shell 3, and located in the middle seam between the two beams.

[0061] When in use, sound insulation cotton 10 is arranged at the middle seam to improve the noise reduction effect, and sound insulation cotton 10 can also be arranged inside the box.

[0062] Furthermore, it also includes: two C-shaped steels 11, which are respectively located on the left and right sides of the lower end of the sound insulation cotton 10; a waterproof board 12, which is located below the sound insulation cotton 10, and the left and right sides are respectively connected to the C-shaped steels 11 on both sides.

[0063] During use, the waterproofing board 12 is a downwardly convex arc, made of polymer materials to enhance waterproofing. It is secured on both sides with C-shaped steel 11, providing a secure fit and excellent sealing performance. The C-shaped steel 11 can be fixedly connected to or abut the sound insulation cotton 10, and the C-shaped steel 11 on each side can be anchored to the concrete structure of the beam on either side. Drainage outlets or additional drainage pipes can be provided on the waterproofing board 12 to guide water away from the upper side of the waterproofing board 12.

[0064] Furthermore, it also includes: a stainless steel plate 13, located on the lower side of the auxiliary tooth plate 2; a steel pad 14, located on the lower side of the stainless steel plate 13, the steel pad 14 and the stainless steel plate 13 are welded together, the stainless steel plate 13 and the steel pad 14 are located between the auxiliary tooth plate 2 and the anchor sleeve 7, and the stainless steel plate 13 and the steel pad 14 are located on the upper side of the beam body on the right side.

[0065] During use, the stainless steel plate 13 and steel backing plate 14 are welded together to improve the flatness of the stainless steel plate 13 when the telescopic mechanism is subjected to force, ensuring that the stainless steel plate 13 remains flat during use and reducing frictional resistance when the primary and secondary tooth plates 2 are extended or retracted. The anchor sleeve 7 can be welded to the steel backing plate 14 for positioning. The stainless steel plate 13 is located on the lower right side of the primary tooth plate 1 and the lower side of the secondary tooth plate 2.

[0066] Furthermore, it also includes: a U-shaped steel bar 15, which is arranged at the lower end of the steel base plate 14 and is used for anchoring with concrete.

[0067] When in use, the steel plate 14 increases the anchoring force of concrete by adding a plurality of U-shaped steel bars 15 .

[0068] Furthermore, it also includes: an anchor plate 16, which is arranged on the left side of the box shell 3 and is used for anchoring with concrete.

[0069] When in use, the displacement hinge assembly 4 increases the concrete anchoring force by adding an anchoring plate 16 on one side of the box shell 3.

[0070] Furthermore, it also includes: an anti-collision plate 17, which is provided on the outside of the main tooth plate 1 and the auxiliary tooth plate 2. The anti-collision plate 17 provided on the outside of the main tooth plate 1 is connected to the box shell 3 through an L-shaped steel plate 18, and the anti-collision plate 17 provided on the outside of the auxiliary tooth plate 2 is connected to the steel pad 14 through an L-shaped steel plate 18.

[0071] During use, the L-shaped steel plate 18 is welded to the box shell 3 and the steel backing plate 14 to adapt to the deformation of the tooth plate in different situations. The outer sides of the main tooth plate 1 and the auxiliary tooth plate 2 are the contact sides of the main tooth plate 1 and the auxiliary tooth plate 2 with the concrete.

[0072] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A multi-directional displacement and telescopic device for facilitating maintenance of an anti-jump board, comprising a main tooth plate (1) and a secondary tooth plate (2) respectively arranged on the left and right side beam bodies, characterized in that: Also includes: A box shell (3) is located below the main gear plate (1), and the box shell (3) is used to be fixed on the left beam body; An upper position-changing hinge (401) is located at the upper part of the box shell (3), and the upper position-changing hinge (401) is connected to the main gear plate (1) via a connecting bolt (5); A lower displacement hinge (402) is arranged in the box shell (3), is located below the upper displacement hinge (401), and is hingedly connected with the upper displacement hinge (401) to form a displacement hinge assembly (4); the main gear plate (1) is arranged on the left beam body through the displacement hinge assembly (4) and the box shell (3); A compression spring (6) is located inside the box shell (3) and on the left side of the displacement hinge assembly (4), the upper end of the compression spring (6) acts on the main tooth plate (1), and the lower end acts on the inner bottom side of the box shell (3), and is used to provide a force for the right part of the main tooth plate (1) close to the upper end of the right beam body; There are a plurality of anchoring sleeves (7) located below the auxiliary tooth plate (2) and used for fixing to the beam body on the right side. The auxiliary tooth plate (2) is threadedly connected to the anchoring sleeve (7) via an anti-loosening bolt (8). The outer side of the anchoring sleeve (7) has an annular positioning groove (701).

2. A multi-directional displacement and telescopic device for facilitating maintenance of an anti-springboard according to claim 1, characterized in that: Also includes: A connecting plate (601) is located below the main tooth plate (1), the lower end of the connecting plate (601) is connected to the upper end of the compression spring (6), the connecting plate (601) is connected to the main tooth plate (1) via a connecting bolt (5), and the upper end of the compression spring (6) acts on the main tooth plate (1) via the connecting plate (601).

3. The multi-directional displacement and telescopic device for facilitating maintenance of the anti-springboard according to claim 2, characterized in that: Also includes: A vibration-damping rubber plate (9) is provided between the connecting plate (601) and the main tooth plate (1), and a vibration-damping rubber plate (9) is also provided between the upper displacement hinge (401) and the main tooth plate (1).

4. The multi-directional displacement and telescopic device for facilitating maintenance of the anti-springboard according to claim 1 is characterized in that: Also includes: The sound insulation cotton (10) is arranged at the lower end of the main tooth plate (1), located on the right side of the box shell (3), and located at the center seam between the two beams.

5. The multi-directional displacement and telescopic device for facilitating maintenance of the anti-springboard according to claim 4 is characterized in that: Also includes: There are two C-shaped steels (11), and the two C-shaped steels (11) are respectively located on the left and right sides of the lower end of the sound insulation cotton (10); The waterproof plate (12) is located below the sound insulation cotton (10), and its left and right sides are respectively connected to the C-shaped steels (11) on both sides.

6. The multi-directional displacement and telescopic device for facilitating maintenance of the anti-springboard according to claim 1 is characterized in that: Also includes: A stainless steel plate (13) is located on the lower side of the auxiliary gear plate (2); A steel plate (14) is located on the lower side of the stainless steel plate (13); the steel plate (14) and the stainless steel plate (13) are welded together; the stainless steel plate (13) and the steel plate (14) are located between the auxiliary tooth plate (2) and the anchor sleeve (7); and the stainless steel plate (13) and the steel plate (14) are located on the upper side of the beam body on the right side.

7. The multi-directional displacement and telescopic device for facilitating maintenance of an anti-springboard according to claim 1, characterized in that: The tooth profiles of the main tooth plate (1) and the auxiliary tooth plate (2) are saw-shaped teeth, trapezoidal teeth or circular teeth.

8. The multi-directional displacement and telescopic device for facilitating maintenance of the anti-springboard according to claim 6, characterized in that: Also includes: A U-shaped steel bar (15) is provided at the lower end of the steel plate (14) for anchoring with concrete.

9. The multi-directional displacement and telescopic device for facilitating maintenance of an anti-springboard according to claim 1, characterized in that: Also includes: An anchoring plate (16) is arranged on the left side of the box shell (3) and is used for anchoring with concrete.

10. The multi-directional displacement and telescopic device for facilitating maintenance of the anti-springboard according to claim 6, characterized in that: Also includes: An anti-collision plate (17) is provided on the outer sides of the main tooth plate (1) and the auxiliary tooth plate (2); the anti-collision plate (17) provided on the outer side of the main tooth plate (1) is connected to the box shell (3) through an L-shaped steel plate (18); and the anti-collision plate (17) provided on the outer side of the auxiliary tooth plate (2) is connected to the steel backing plate (14) through an L-shaped steel plate (18).

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