A displacement adjustable telescopic device and method of adjustment

Abstract

The present application relates to the field of bridge expansion joint, especially to a displacement adjustable expansion joint and adjusting method. The bridge expansion joint comprises symmetrically arranged comb tooth side beams (3) with arc-shaped ends and staggered teeth, the roots of the comb tooth side beams (3) comprise bolt holes for mounting displacement adjusters (7); the displacement adjuster (7) is a groove structure, the bottom comprises a long strip-shaped hole and a circular hole, and an adjusting bolt (11) capable of penetrating the long strip-shaped hole and the circular hole; a mortise and tenon type anchoring plate (1) and a mortise and tenon type supporting vertical plate (4) are connected below the left comb tooth side beam (3); the mortise and tenon type anchoring plate (1) and the mortise and tenon type supporting vertical plate (4) are connected through the mutual nesting of notches; by using the displacement adjuster (7), the distance between the two comb tooth side beams (3) can be adjusted according to the actual joint width of the on-site thermometer during construction, so as to meet the actual displacement requirements of the bridge.

Description

Technical Field

[0001] This invention relates to the field of bridge expansion joints, and more particularly to an adjustable expansion joint and its adjustment method. Background Technology

[0002] When installing bridge expansion joints, the joint width needs to be determined based on the site temperature and the actual bridge joint width. Currently, the vast majority of expansion joint products in the industry have fixed joint widths shipped from the factory, which can lead to mismatches with the actual joint widths on site.

[0003] For example, the width of expansion joints in bridge construction is inconsistent, and the site environment varies greatly. Therefore, expansion joints with fixed dimensions cannot meet the actual displacement requirements of the bridge, resulting in premature product damage.

[0004] Combination Figure 13 , Figure 14 , Figure 15 ;

[0005] Combination Figure 13 Type 1 problem:

[0006] Traditional anchor plates are thin, have short weld lengths, and have poor overall anchoring performance.

[0007] Without a sliding steel plate under the comb teeth, debris and gravel will fall into the gaps between the teeth, accelerating the damage to the waterstop.

[0008] Without support underneath the comb teeth, they are prone to sinking and deforming.

[0009] Waterstops are inconvenient to install and are prone to falling off.

[0010] Combination Figure 14 Type 2 problem:

[0011] Traditional anchor plates are thin, have short weld lengths, and have poor overall anchoring performance.

[0012] Without support below the comb teeth, the comb teeth are prone to sinking and deforming, and the sliding steel plate is prone to falling off.

[0013] Waterstops are inconvenient to install and are prone to falling off.

[0014] Combination Figure 15 Type 3 problem:

[0015] Traditional anchor plates are thin, have short weld lengths, and have poor overall anchoring performance.

[0016] With single-point support below the comb teeth, the sliding steel plate is prone to detachment.

[0017] Waterstops are inconvenient to install and are prone to falling off.

[0018] CN218712162U discloses a positioning device for anchor bolt assemblies of bridge comb-type expansion joints, but it does not have the effect of adjusting the width; CN218464384U discloses an anti-deviation transport seat for transporting large bridge expansion joints, which is designed to prevent deformation during transportation, and is completely different from the purpose of this patent. CN112523077A discloses a bridge expansion joint width monitoring and early warning device, which has nothing to do with width adjustment and installation. Summary of the Invention

[0019] Purpose of the invention: To provide a more effective displacement adjustable telescopic device and adjustment method, the specific purpose of which is described in the detailed implementation section for several substantial technical effects.

[0020] To achieve the above objectives, the present invention adopts the following technical solution:

[0021] An adjustable telescopic device includes comb-tooth side beams 3 with arc-shaped ends arranged on both sides, the comb-tooth side beams 3 being symmetrically arranged with the comb teeth interlaced; characterized in that...

[0022] The root of the comb-tooth side beams 3 on both sides contains bolt holes for installing displacement adjusters 7; the displacement adjuster 7 is a groove-shaped structure, and the lower part of the groove-shaped structure contains an elongated hole and a circular hole, as well as an adjusting bolt 11 that can pass through the elongated hole and the circular hole; the adjusting bolt 11 passes through the comb-tooth side beams 3 on both sides and the displacement adjuster 7 and is fixed by upper and lower nuts.

[0023] The left comb-tooth edge beam 3 is connected to the mortise and tenon anchor plate 1 and the mortise and tenon support plate 4 below. The mortise and tenon anchor plate 1 includes an upward notch; the mortise and tenon support plate 4 includes a downward notch. The mortise and tenon anchor plate 1 and the mortise and tenon support plate 4 are connected by interlocking notches.

[0024] The right-side comb-tooth edge beam 3 is connected to the reinforced anchor plate 2 and the reinforced support plate 5 below, and the reinforced support plate 5 is fixedly connected to the reinforced anchor plate 2.

[0025] Below the comb-tooth side beams 3 on both sides are two interlocking sliding dustproof stainless steel plates 8. The dustproof stainless steel plate 8 on the left is fixedly connected to the tenon and mortise anchor plate 1; the dustproof stainless steel plate 8 on the right is fixedly connected to the right comb-tooth side beam 3 and the positioning angle steel 9.

[0026] Both the tenon-and-mortise type support plate 4 and the reinforced support plate 5 are provided with concrete shaping plates 10. The concrete shaping plate 10 includes a horizontal plate and a vertical plate. The right-angle mechanism formed by the horizontal plate and the vertical plate is locked on the right-angle side of the concrete and fixes the waterstop 6.

[0027] A further technical solution of the present invention is that the elongated hole and the circular hole at the bottom of the displacement adjuster 7 are arranged correspondingly to the bolt holes of the comb-tooth side beams 3 on both sides.

[0028] A further technical solution of the present invention is that when the nut above the elongated hole is loosened, the corresponding lower comb-tooth side beam 3 can move back and forth along the long side of the elongated hole.

[0029] A further technical solution of the present invention is that the tenon-and-mortise support plate 4 adopts a scheme including a channel with a hole in the middle, and the tenon-and-mortise anchor plate 1 passes through the channel. In this scheme, the tenon-and-mortise anchor plate 1 has no notch.

[0030] A further technical solution of the present invention is that both the tenon-and-mortise anchor plate 1 and the reinforced anchor plate 2 include holes through which reinforcing bars can pass.

[0031] A further technical solution of the present invention is that the docking position of the reinforced support plate 5 and the corresponding dustproof stainless steel plate 8 includes a positioning angle steel 9, which is fixedly connected to the reinforced support plate 5 and the corresponding dustproof stainless steel plate 8.

[0032] An adjustable telescopic device and adjustment method, characterized in that, using any one of the above-described adjustable telescopic devices, the method comprises the following steps:

[0033] The seam width of the expansion joint products is a fixed value shipped from the factory.

[0034] When installing bridge expansion joints, the joint width of the expansion joints needs to be determined based on the site temperature and the actual bridge joint width.

[0035] Once at the specific installation location, adjust the position of the adjusting bolt 11 in the elongated hole according to the width of the expansion joint; thereby achieving width adjustment.

[0036] The present invention, which adopts the above technical solution, has the following beneficial effects compared with the prior art: The device adds a displacement adjuster (7), which can adjust the joint width of the expansion joint at any time on site to achieve the joint width value required by the actual bridge. Mortise and tenon anchoring structure: The mortise and tenon anchoring plate and the mortise and tenon support plate are connected by mortise and tenon, which realizes a more stable anchoring zone structure and enhances the overall durability of the expansion joint. In addition, its reinforced anchoring plate can support the sliding steel plate and comb tooth side beam above, which not only solves the problem of easy slippage of the sliding steel plate, but also solves the problem of easy sinking of the tooth plate of the comb tooth structure. Noise reduction function: The comb tooth structure of this device is designed based on mechanical basis and practical application, which greatly reduces driving noise. Attached Figure Description

[0037] Figure 1 Elevation view of the invention;

[0038] Figure 2 A plan view of the invention;

[0039] Figure 3 A three-dimensional diagram of the invention;

[0040] Figure 4 This is a three-dimensional view of the comb-tooth edge beam;

[0041] Figure 5 This is a three-dimensional view of a tenon-and-mortise anchor plate.

[0042] Figure 6 A three-dimensional view of the reinforced anchor plate;

[0043] Figure 7 A three-dimensional view of the mortise and tenon joint support panel;

[0044] Figure 8 A three-dimensional view of the reinforced support panel;

[0045] Figure 9 A 3D view of the displacement regulator;

[0046] Figure 10 This is the second type of mortise and tenon anchor plate;

[0047] Figure 11 This is the second type of mortise and tenon joint support for the upright plate;

[0048] Figure 12 A three-dimensional diagram of the invention;

[0049] Figure 13 For traditional cross-slit type 1 telescopic device

[0050] Figure 14 Type II of traditional cross-seam telescopic device

[0051] Figure 15 Type 3 of traditional cross-seam telescopic device

[0052] Figure 16 Elevation view of the lower structure

[0053] Figure 17 Exploded view of the lower structure

[0054] The components include: 1. Mortise and tenon anchor plate; 2. Reinforced anchor plate; 3. Comb-tooth side beam; 4. Mortise and tenon support plate; 5. Reinforced support plate; 6. Waterstop; 7. Displacement adjuster; 8. Dustproof stainless steel plate; 9. Positioning angle steel; 10. Concrete shaping plate; 11. Adjusting bolts; Detailed Implementation

[0055] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood according to the specific circumstances.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] This patent provides multiple parallel solutions; the different descriptions represent improved solutions or parallel solutions based on the basic solution. Each solution has its own unique characteristics. Furthermore, the technical features involved in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other. Fixing methods not described herein can be any type of fixing, such as threaded fixing, bolt fixing, or adhesive bonding.

[0058] Example 1: Referring to all the accompanying drawings; a displacement-adjustable telescopic device, the bridge telescopic device comprising comb-tooth side beams 3 with arc-shaped ends on both sides, the comb-tooth side beams 3 being symmetrically arranged with their teeth interlaced; characterized in that the root of the comb-tooth side beams 3 on both sides includes bolt holes for installing displacement adjusters 7; the displacement adjuster 7 is a groove-shaped structure, the bottom of which includes an elongated hole and a circular hole, and an adjusting bolt 11 that can pass through the elongated hole and the circular hole; the adjusting bolt 11 passes through both comb-tooth side beams 3 and the displacement adjuster 7 and is fixed by upper and lower nuts;

[0059] One of the adjusting bolts 11 can be adjusted to its position in the elongated hole after passing through it;

[0060] The adjusting bolt 11 passes through the elongated hole and the circular hole of the shift adjuster 7 and then through the bolt hole at the root of the comb tooth side beam 3, thereby fixing the distance between the two comb tooth side beams 3. That is, the two comb tooth side beams 3 are connected to the shift adjuster 7 through the adjusting bolt 11, and the width of the expansion joint can be adjusted according to the on-site temperature and the specific environment of the installation site when the expansion joint is installed.

[0061] The substantive technical effect and implementation process of the technical solution described herein, i.e., its basic function, are as follows: A displacement-adjustable expansion joint device and adjustment method, characterized in that, using any one of the above-mentioned displacement-adjustable expansion joint devices, the following steps are included: the expansion joint width of the expansion joint products is a fixed value shipped from the factory; when installing the bridge expansion joint device, the expansion joint width needs to be adjusted according to the site temperature and the actual bridge joint width; after reaching the specific installation position, the adjusting bolt 11 is turned according to the width of the expansion joint to adjust the position of the adjusting bolt 11 in the elongated hole; thereby achieving width adjustment.

[0062] This device incorporates a displacement adjuster, allowing for on-site adjustment of the expansion joint width to meet the actual requirements of the bridge. The mortise and tenon anchoring structure connects the anchoring plate and support plate using a mortise and tenon joint method, achieving a more stable anchoring zone structure and enhancing the overall durability of the expansion joint. Furthermore, the mortise and tenon anchoring plate supports the upper sliding steel plate and comb-tooth side beams, solving not only the problem of the sliding steel plate easily detaching but also the problem of the comb-tooth structure's teeth easily sinking. Noise reduction: The comb-tooth structure of this device, designed based on mechanical principles and practical applications, significantly reduces traffic noise.

[0063] The bridge expansion joint includes two comb-tooth side beams 3, which are symmetrically arranged with their teeth interlaced. The two comb-tooth side beams 3 are connected to the adjustment device 7 via adjusting bolts 11, allowing the expansion joint width to be adjusted according to the site temperature and specific environmental conditions during installation.

[0064] One side of the dustproof stainless steel plate 8 is connected and fixed to the tenon and mortise anchor plate 4, and the other side of the dustproof stainless steel plate 8 is connected and fixed to the positioning angle steel 9. Below the expansion joint, near the beam end, a concrete positioning plate 10 is used to prevent grout leakage during concrete pouring.

[0065] Example 2: As a further improvement, parallel, or optional independent solution, the displacement adjuster 7 has a U-shaped groove structure. The substantive technical effect and implementation process of this technical solution, i.e., its basic function, are as follows: the U-shaped groove structure is easy to manufacture and install, and the bottom fits tightly. Preferably, graduations are arranged on the side of the U-shaped groove.

[0066] Example 3: As a further improvement, parallel, or optional independent solution, a reinforced support plate 5 is connected below the right-side comb-tooth side beam 3. The reinforced support plate 5 enhances the stability of the telescopic device and is fixedly connected to the reinforced anchor plate 2. A tenon-and-mortise support plate 4 is connected below the left-side comb-tooth side beam. The tenon-and-mortise support plate 4 includes a downward-facing notch and a tenon-and-mortise anchor plate 1. The tenon-and-mortise anchor plate 1 includes an upward-facing notch, and the notches of the tenon-and-mortise support plate 4 and the tenon-and-mortise anchor plate 1 can fit together. The substantive technical effect and implementation process of this technical solution, i.e., its basic function, are as follows: This embodiment innovatively uses the tenon-and-mortise anchor plate 1 in this patent. The left side of the tenon-and-mortise anchor plate 1 serves as a reinforced anchor plate, and the right side serves as a corbel structure for support.

[0067] Example 4: As a further improvement, parallel, or optional independent solution, there are two interlocking sliding dustproof stainless steel plates 8 below the comb tooth side beam. The dustproof stainless steel plates 8 can play the role of preventing dust and preventing gravel from falling.

[0068] Example 5: As a further improvement, parallel solution, or optional independent solution, the right side of the mortise and tenon support plate 4 can support the dustproof stainless steel plate 8 facing upwards. The substantive technical effect and implementation process of this technical solution, i.e., its basic function, are as follows: better support effect.

[0069] Example 6: As a further improvement, parallel, or optional independent solution, the comb teeth of the comb side beam have an arc-shaped end structure. The substantive technical effect and implementation process of this technical solution, i.e., its basic function, are as follows: Noise reduction function: The comb tooth structure of this device is designed based on mechanical principles and practical applications, which greatly reduces driving noise.

[0070] Example 7: As a further improvement, parallel solution, or optional independent solution, the mating position between the reinforced support plate 5 and the corresponding dustproof stainless steel plate 8 includes a positioning angle steel 9, which is fixedly connected to the reinforced support plate 5 and the corresponding dustproof stainless steel plate 8. The substantial technical effect and implementation process of this technical solution, i.e., its basic function, are as follows: There are many similar fixing structures, all of which are within the scope of protection of this patent.

[0071] Example 8: As a further improvement, parallel, or optional independent solution, a concrete shaping plate 10 is arranged below both the tenon-and-mortise support plate 4 and the reinforced support plate 5. The concrete shaping plate 10 includes a horizontal plate and a vertical plate. The right-angle mechanism formed by the horizontal and vertical plates is engaged with the right-angle side of the concrete and fixes the waterstop 6. The substantial technical effect and implementation process of this technical solution, i.e., its basic function, are as follows: it avoids grout exposure and reduces the installation structure of the waterstop.

[0072] Example 9: As a further improvement, parallel solution, or alternative independent solution, refer to the last two figures, i.e. Figure 10 and Figure 11 The mortise and tenon support plate 4 includes an opening through which a reinforced anchor plate passes. The reinforced anchor plate has no notch. In fact, it is also a kind of mortise and tenon fixing structure.

[0073] The present invention, employing the above technical solution, offers the following advantages over existing technologies: The addition of a displacement adjuster 7 allows for on-site adjustment of the expansion joint width to meet the actual requirements of the bridge. The mortise and tenon anchoring structure, where the mortise and tenon anchoring plate and the mortise and tenon support plate are connected via mortise and tenon joints, achieves a more stable anchoring zone structure and enhances the overall durability of the expansion joint. Furthermore, the mortise and tenon anchoring plate 4 supports the upper sliding steel plate and the comb-tooth side beam, solving not only the problem of the sliding steel plate easily detaching but also the problem of the comb-tooth structure's tooth plate easily sinking. Noise reduction: The comb-tooth structure of this device, designed based on mechanical principles and practical applications, significantly reduces traffic noise.

[0074] Innovatively, each of the above effects exists independently, yet a single structure can be used to combine the results.

[0075] It should be noted that the multiple solutions provided in this patent include their own basic solutions, which are independent of each other and do not restrict each other. However, they can also be combined with each other without conflict to achieve multiple effects.

[0076] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims.

Claims

1. A displacement-adjustable telescopic device, comprising comb-tooth side beams (3) with arc-shaped ends arranged on both sides, the comb-tooth side beams (3) arranged symmetrically on both sides and the comb teeth interlacing with each other; characterized in that, The root of the comb-tooth side beams (3) on both sides contains bolt holes for installing displacement adjusters (7); the displacement adjuster (7) is a groove-shaped structure, and the lower part of the groove-shaped structure contains an elongated hole and a circular hole and an adjusting bolt (11) that can pass through the elongated hole and the circular hole; the adjusting bolt (11) passes through the comb-tooth side beams (3) on both sides and the displacement adjuster (7) and is fixed by upper and lower nuts; The left comb-tooth side beam (3) is connected to a tenon-and-mortise anchor plate (1) and a tenon-and-mortise support plate (4). The tenon-and-mortise anchor plate (1) has an upward notch; the tenon-and-mortise support plate (4) has a downward notch. The tenon-and-mortise anchor plate (1) and the tenon-and-mortise support plate (4) are connected by interlocking notches. The right side comb edge beam (3) is connected to the reinforced anchor plate (2) and the reinforced support plate (5) below, and the reinforced support plate (5) is fixedly connected to the reinforced anchor plate (2); The comb-tooth side beams (3) on both sides contain two interlocking sliding dustproof stainless steel plates (8). The dustproof stainless steel plate (8) on the left side is fixed to the tenon and tenon anchor plate (1); the dustproof stainless steel plate (8) on the right side is fixed to the right comb-tooth side beam (3) and the positioning angle steel (9). A concrete shaping plate (10) is arranged below both the tenon-and-mortise type support plate (4) and the reinforced support plate (5). The concrete shaping plate (10) includes a horizontal plate and a vertical plate. The right-angle mechanism formed by the horizontal plate and the vertical plate is locked on the right-angle side of the concrete and fixes the waterstop (6). The elongated hole and the circular hole at the bottom of the displacement adjuster (7) are arranged corresponding to the bolt holes of the comb tooth side beams (3) on both sides. The joint position of the reinforced support plate (5) and the corresponding dustproof stainless steel plate (8) includes a positioning angle steel (9). The positioning angle steel (9) is fixed on the reinforced support plate (5) and the corresponding dustproof stainless steel plate (8).

2. The displacement-adjustable telescopic device as described in claim 1, characterized in that, When the nut above the elongated hole is loosened, the corresponding lower comb-tooth side beam (3) can move back and forth along the long side of the elongated hole.

3. The displacement-adjustable telescopic device as described in claim 1, characterized in that, Alternatively, the tenon-and-mortise support plate (4) has a hole in the middle, through which the tenon-and-mortise anchor plate (1) passes, and there is no notch on the tenon-and-mortise anchor plate (1).

4. The displacement-adjustable telescopic device as described in claim 1, characterized in that, Both the tenon-and-mortise anchor plate (1) and the reinforced anchor plate (2) contain holes through which reinforcing bars can pass.

5. A method for adjusting a displacement-adjustable telescopic device, characterized in that, The displacement-adjustable telescopic device according to any one of claims 1-4 comprises the following steps: The seam width of the expansion joint products is a fixed value shipped from the factory. When installing bridge expansion joints, the joint width of the expansion joints needs to be determined based on the site temperature and the actual bridge joint width. Once at the specific installation location, adjust the position of the adjusting bolt (11) in the elongated hole according to the width of the expansion joint; thereby achieving width adjustment.

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