Finger-shaped plate device with protection and noise reduction performance

Abstract

The utility model relates to the technical field of finger-shaped plate devices, and discloses a finger-shaped plate device with protection and noise reduction performance, which comprises a movable finger-shaped plate, a fixed finger-shaped plate and a protection component, the movable finger-shaped plate is arranged at the movable end of a bridge, the fixed finger-shaped plate is arranged at the fixed end of the bridge, the limit displacement space of the movable finger-shaped plate and the limit displacement space of the fixed finger-shaped plate are each provided with a sinking groove, and the two sets of protection assemblies are arranged in the two sinking grooves respectively. The protection assembly comprises a covering plate and a barrier strip, and the covering plate is connected into the sinking groove through a bolt; the multiple blocking strips are distributed on one side of the covering plate at equal intervals and used for shielding a gap between the covering plate and the fixed finger-shaped plate or the movable finger-shaped plate, and the bottom of the covering plate is provided with a plurality of groove holes used for preventing the blocking strips on the opposite sides from impacting.

Description

Technical Field

[0001] The utility model relates to the technical field of finger plate devices, and particularly relates to a finger plate device with protection and noise reduction performance. Background Art

[0002] Finger plates are the core components of finger joint systems and are used in bridge expansion joints to accommodate the expansion and deformation of bridges caused by temperature changes, traffic loads, etc. Through their staggered arrangement design, they achieve flexible connection and continuity between bridge components.

[0003] However, due to the large displacement of large finger joints, a large amount of displacement space is reserved between the finger bars. Usually, only in special extreme cases will the expansion joint reach its extreme displacement, and only a part of the displacement space is utilized in daily displacements. The excessive displacement space will generate more noise during traffic and is prone to debris accumulation.

[0004] In view of the above, the present application proposes a finger plate device with protection and noise reduction performance. This design can effectively reduce the generated noise and prevent gravel from falling into the finger joint gap without affecting the total displacement. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a finger plate device with protection and noise reduction performance, which solves the problems raised in the above background art.

[0006] To achieve the above objectives, the utility model is realized through the following technical solutions:

[0007] A finger plate device with protection and noise reduction performance, comprising a movable finger plate, a fixed finger plate, and a protection component;

[0008] The movable finger plate is arranged at the movable end of the bridge, the fixed finger plate is arranged at the fixed end of the bridge, and a sinking groove is provided at the extreme displacement space of both the movable finger plate and the fixed finger plate. Two groups of the protection components are respectively arranged in the two sinking grooves;

[0009] The protection component includes a cover plate and a retaining strip. The cover plate is connected in the sinking groove by bolts; there are multiple retaining strips, which are equidistantly distributed on one side of the cover plate and are used to block the gap between the cover plate and the fixed finger plate or the movable finger plate. Multiple slot holes are provided at the bottom of the cover plate to prevent the impact of the retaining strip on the opposite side.

[0010] Optionally, the cover plate is composed of a wear-resistant layer and a rubber layer, and the rubber layer is arranged on the wear-resistant layer.

[0011] Optionally, the wear-resistant layer is made of one of steel plates or aluminum alloys.

[0012] Optionally, the movable finger plate has the same structure as the fixed finger plate and is symmetrically arranged; both include a fixed plate and a plurality of finger bars. The plurality of finger bars are evenly arranged at equal intervals on the fixed plate, and a spacing is formed between two adjacent finger bars, and the spacing is adapted to the insertion of a plurality of finger bars in a set on the opposite side.

[0013] Optionally, the stop bar is divided into a horizontal section and an inclined section starting from the connection end with the cover plate;

[0014] The horizontal section is arranged horizontally, and its upper surface is flush with the fixed plate;

[0015] The inclined section is arranged to incline downward from the top surface of the horizontal section.

[0016] Optionally, the stop bar blocks the spacing at the interval between the cover plate and the fixed plate, and the number of stop bars is adapted to the number of spacings.

[0017] The utility model provides a finger plate device with protection and noise reduction performance, having the following beneficial effects:

[0018] 1. Through the cooperative setting of the sinking groove and the protection component, the stability of the protection component after installation can be increased, the situation that the protection component is independently and prominently arranged is reduced, the exposed area is reduced, and the loss is reduced.

[0019] 2. Through the cooperative setting between the cover plate and the stop bar, the exposed area of the expansion joint formed between the movable finger plate and the fixed finger plate can be reduced, so that the noise will be relatively reduced when the vehicle passes by; secondly, after the cover plate is set, there is a gap between the cover plate and the two finger plates, and the stop bar can block the situation that garbage and gravel fall into the gap, achieving the protection effect.

[0020] 3. Through the setting of the slot holes, the situation that there is an occlusion after the expansion joint between the movable finger plate and the fixed finger plate is closed to the limit can be further avoided. Description of the Drawings

[0021] Figure 1 It is a schematic cross-sectional view of the structure of the utility model;

[0022] Figure 2 It is a schematic top view of the structure of the utility model;

[0023] Figure 3 It is a schematic diagram of the slot hole structure of the utility model;

[0024] Figure 4 It is a schematic diagram of the maximum limit closed structure of the utility model;

[0025] Figure 5 It is a schematic diagram of the maximum limit open structure of the utility model.

[0026] In the figure: 1. Movable finger plate; 2. Fixed finger plate; 3. Protection component; 31. Cover plate; 32. Stop bar; 321. Horizontal section; 322. Oblique section; 4. Sinking groove; 5. Fixed plate; 6. Finger bar; 7. Spacing; 8. Slot hole. Detailed implementation mode

[0027] In order to easily understand the technical means, creative features, achieved purposes and effects of the present utility model, the present utility model will be further described below in conjunction with specific embodiments.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "horizontal", "longitudinal", "end", "edge", "side wall", "upper", "lower", "upper part", "lower part", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "end", "head", "tail", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the technical solution of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0029] The present application proposes a finger plate device with protection and noise reduction performance, which is specifically as follows:

[0030] Reference can be made to Figure 1-2 , the present application is mainly composed of a movable finger plate 1, a fixed finger plate 2 and a protection component 3. There are two groups of protection components 3, which are respectively arranged on the movable finger plate 1 and the fixed finger plate 2, and can reduce noise of passing vehicles and block gravel from falling into the finger joint gap.

[0031] Reference can be made to Figure 1-2 , both the movable finger plate 1 and the fixed finger plate 2 are existing finger plate structures, which are components used for expansion joints of bridges and roads, and are designed as finger-shaped plates. The finger-shaped structures are interlocked with each other in a staggered manner to adapt to the expansion and contraction movement of the bridge or road under temperature changes, load changes, etc. The movable finger plate 1 and the fixed finger plate 2 are symmetrically interlocked. The fixed finger plate 2 is a fixed section that does not move, and the movable finger plate 1 is a movable section that can move. This design enables the bridge or road structure to expand and contract as necessary under temperature changes, load effects or earthquakes, etc., to prevent structural damage.

[0032] Reference can be made to Figure 1-2, the movable finger plate 1 has the same structure as the fixed finger plate 2 and is symmetrically arranged; both include a fixed plate 5 and multiple finger bars 6. The multiple finger bars 6 are evenly arranged at equal intervals on the fixed plate 5, and a spacing 7 is formed between two adjacent finger bars 6. The spacing 7 is adapted for insertion of multiple finger bars 6 in a set on the opposite side.

[0033] At the extreme displacement spaces of the movable finger plate 1 and the fixed finger plate 2, a sunken groove 4 is provided, and a set of protective components 3 are arranged in the sunken grooves 4 at both places. Through the setting of the sunken groove 4, the protective components 3 are made more stable during installation, reducing the risk of warping and rubbing against passing vehicles, etc.

[0034] For reference Figure 1-2 , one set of protective components 3 includes a covering plate 31 and a retaining bar 32. The covering plate 31 is connected in the sunken groove 4 by bolts; thus reducing the exposed gap of the finger joint. When a vehicle passes by, the generated noise can be effectively reduced; secondly, the covering plate 31 is set to be composed of a wear-resistant layer and a rubber layer. The rubber layer is arranged on the wear-resistant layer. The wear-resistant layer is made of one of steel plates or aluminum alloys, providing a stable foundation for the floor. The rubber layer is arranged on the upper side to reduce frictional noise and further enhance the noise reduction effect.

[0035] There are multiple retaining bars 32, which are evenly distributed on one side of the covering plate 31 and are used to block the exposed spacing 7 at the connection gap between the covering plate 31 and the fixed finger plate 2 or the movable finger plate 1. Secondly, the number of retaining bars 32 is adapted to the number of spacings 7 arranged on this side; thus, through the setting of the retaining bars 32, it can prevent gravel or garbage from falling into this side, resulting in a situation that is not easy to clean.

[0036] Furthermore, for reference Figure 3-5 , it shows the situation of the maximum limit closing and the maximum limit opening of the expansion joint between the movable finger plate 1 and the fixed finger plate 2. However, in the case of the extreme closing of the expansion joint, there may be a collision with the covering plate 31. Therefore, multiple slot holes 8 are provided at the bottom of the covering plate 31, and the number and position of the slot holes 8 correspond to those of the finger bars 6 on the opposite side in sequence.

[0037] It should be further noted that the opposite side mentioned here refers to the structure on the symmetric side. For example, the opposite side of the movable finger plate 1 is the fixed finger plate 2. Thus, the multiple finger bars 6 on the movable finger plate 1 will correspond to the multiple spacings 7 of the fixed finger plate 2 on the symmetric side, and the multiple finger bars 6 on the movable finger plate 1 will be arranged within the multiple spacings 7 of the fixed finger plate 2. Vice versa, the principle is the same.

[0038] Secondly, in order to reduce the risk of the edge of the retaining strip 32 curling up during use and causing harm, the retaining strip 32 is divided into a horizontal section 321 and an inclined section 322 starting from the connection end with the covering plate 31. The horizontal section 321 is arranged horizontally, and its upper surface is flush with the fixing plate 5. The inclined section 322 is arranged to incline downward from the top surface of the horizontal section 321. After this setting, when the retaining strip 32 vibrates due to passing vehicles or the like, the situation of the edge curling up upward on one side will not occur.

[0039] In the present utility model, the working steps of the device are as follows:

[0040] 1. First, determine the positions on the bridge where the movable finger plate 1 and the fixed finger plate 2 need to be connected. A telescopic joint (i.e., finger joint) is formed between their symmetrically arranged positions.

[0041] 2. Secondly, a sunken groove 4 is provided at the extreme displacement spaces of both the movable finger plate 1 and the fixed finger plate 2, and a protective component 3 is arranged in the sunken grooves 4 at both places.

[0042] 3. Then, through the setting of the covering plate 31, the blank range of the telescopic joint is reduced, so that the noise can be effectively reduced when there are vehicles or the like moving back and forth. During this period, the retaining strip 32 can prevent garbage from falling into the gap between the covering plate 31 and the fixing plate 5 at any time, playing a protective role.

[0043] 4. Finally, the slot holes 8 provided at the bottom of the covering plate 31 can reduce the situation of collision at both ends when the telescopic joint is at the maximum limit of closure.

[0044] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the present utility model. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A finger-shaped plate device with protection and noise reduction performance, characterized in that: It includes a movable finger plate (1), a fixed finger plate (2) and a protection component (3); The movable finger plate (1) is arranged at the movable end of the bridge, the fixed finger plate (2) is arranged at the fixed end of the bridge, a sinking groove (4) is arranged at the extreme displacement space of the movable finger plate (1) and the fixed finger plate (2), and two groups of the protection components (3) are respectively arranged in the two sinking grooves (4); The protection component (3) includes a cover plate (31) and a retaining strip (32). The cover plate (31) is connected in the sinking groove (4) by bolts; there are a plurality of the retaining strips (32), which are equidistantly distributed on one side of the cover plate (31) and are used to block the gap between the cover plate (31) and the fixed finger plate (2) or the movable finger plate (1). A plurality of slot holes (8) for preventing the opposite retaining strip (32) from hitting are arranged at the bottom of the cover plate (31).

2. The finger plate device with protection and noise reduction performance according to claim 1, characterized in that: The cover plate (31) is composed of a wear-resistant layer and a rubber layer, and the rubber layer is arranged on the wear-resistant layer.

3. The finger plate device with protection and noise reduction performance according to claim 2, characterized in that: The wear-resistant layer is made of one of steel plates or aluminum alloys.

4. The finger plate device with protection and noise reduction performance according to claim 1, characterized in that: The movable finger plate (1) and the fixed finger plate (2) have the same structure and are symmetrically arranged; they both include a fixing plate (5) and a plurality of finger strips (6). The plurality of finger strips (6) are equidistantly and evenly arranged on the fixing plate (5), and a spacing (7) is formed between two adjacent finger strips (6). The spacing (7) is adapted to the insertion of a plurality of finger strips (6) in the opposite group.

5. The finger plate device with protection and noise reduction performance according to claim 4, characterized in that: The retaining strip (32) is divided into a horizontal section (321) and an inclined section (322) starting from the connection end with the cover plate (31); The horizontal section (321) is horizontally arranged, and its upper surface is flush with the fixing plate (5); The inclined section (322) is arranged to incline downward from the top surface of the horizontal section (321).

6. The finger plate device with protection and noise reduction performance according to claim 4, characterized in that: The retaining strip (32) blocks the spacing (7) at the interval between the cover plate (31) and the fixing plate (5), and the number of the retaining strips (32) is adapted to the number of the spacings (7).

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