Rubber dustproof noise reduction device for bridge expansion joint

Abstract

The utility model discloses a rubber dustproof noise reduction device for a bridge expansion joint, which relates to the technical field of bridge expansion joints and comprises symmetrically arranged bearing pieces, an upper supporting part and a lower supporting part are arranged on the sides, close to each other, of the symmetrical bearing pieces, and a supporting plate fixed on the bearing pieces is arranged at the bottom of the upper supporting part. A damping plate and a dustproof plate are arranged between the upper supporting part and the supporting plate, the damping plate is fixedly connected to the bottom of the dustproof plate, and the top of the dustproof plate is slidably connected with the upper supporting part. According to the rubber dust prevention and noise reduction device for the bridge expansion joint, the damping plate and the dustproof plate component are arranged at the bottom of the upper supporting part, the dustproof plate at the top can effectively prevent gravel from damaging the expansion joint, the damping plate at the bottom plays a role in noise reduction, and meanwhile the overall service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge expansion joints, and more particularly to a rubber dust-proof and noise-reduction device for bridge expansion joints. Background Art

[0002] Bridge expansion joints are a crucial component of bridge structures, allowing the bridge deck to expand or contract in response to factors such as temperature changes, humidity, vehicle loads, and earthquakes. Without proper expansion joints, bridges can be damaged by the thermal expansion and contraction of materials, potentially leading to structural failure.

[0003] Chinese patent application number 202323610986.8 discloses a bridge expansion joint comprising a first telescopic plate, a first fixed plate fixedly connected below the first telescopic plate, a second telescopic plate slidably connected to the right side of the first telescopic plate, a second fixed plate fixedly connected below the second telescopic plate, a rubber belt with its left end fixedly connected to the bottom of the first fixed plate and its right end fixedly connected to the bottom of the second fixed plate, a support assembly disposed below the first telescopic plate, and a limit assembly disposed below the first and second telescopic plates. During use, this bridge expansion joint experiences frequent vehicle traffic, causing the joint to vibrate, generating noise at the joint ends and causing sound pollution. Furthermore, the rubber belt at the bottom, used to divert liquid, is difficult to remove and perform regular maintenance. The rubber belt requires regular replacement after extended use to improve the overall life of the bridge.

[0004] Therefore, it is necessary to propose a rubber dust and noise reduction device for bridge expansion joints to solve the above problems. Utility Model Content

[0005] In response to the above problems, the utility model provides a rubber dust and noise reduction device for bridge expansion joints, which has the effect of improving the overall strength, while effectively preventing sand and gravel from damaging the expansion joint and reducing noise.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A rubber dust and noise reduction device for a bridge expansion joint comprises symmetrically arranged receiving parts, wherein an upper support portion and a lower support portion are provided on a side of the receiving parts close to each other, a support plate fixed to the receiving part is provided at the bottom of the upper support portion, a shock absorbing plate and a dustproof plate are provided between the upper support portion and the support plate, the shock absorbing plate is fixedly connected to the bottom of the dustproof plate, and the top of the dustproof plate is slidably connected to the upper support portion;

[0008] The top of one end of the support plate away from the receiving member is provided with an inner rib, and the bottom of the shock absorbing plate is provided with an outer rib in contact with the support plate;

[0009] A cavity is provided at the top of the lower support portion, and a sealing strip is provided between the symmetrical receiving parts. Both ends of the sealing strip are connected to connecting strips located in the cavity. An external positioning portion is provided above the cavity, and an internal positioning portion corresponding to the external positioning portion is provided on the top of the connecting strip.

[0010] Preferably, a bending portion is provided on the sealing strip.

[0011] Preferably, a groove is provided on a side of the receiving member away from the sealing strip, and an anchor plate is connected to the groove.

[0012] Preferably, a mounting groove is provided on the anchor plate.

[0013] Preferably, the top of the receiving member is provided with anti-slip stripes.

[0014] Preferably, one end of the upper support portion is provided with an inclined surface.

[0015] Preferably, a downwardly inclined slope is provided on the top of one end of the anchoring plate away from the receiving member.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This device is equipped with a shock-absorbing plate and a dust-proof plate at the bottom of the upper support part. The dust-proof plate on the top can effectively prevent sand and gravel from damaging the telescopic device, and the shock-absorbing plate at the bottom can reduce noise and improve the overall service life.

[0018] 2. This device is provided with an inner positioning portion on the connecting strip, which can keep the connecting strip stably in the cavity, prevent the wear of both ends of the sealing strip, and improve the sealing and water-conducting capabilities.

[0019] 3. The receiving parts and anchor plates of this device are integrated, and there is no structure of winding steel bars, etc., which improves the overall strength and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0021] Figure 2 It is a front schematic diagram of the utility model;

[0022] Figure 3 It is a partial enlarged view of the present utility model.

[0023] Reference numerals:

[0024] 101. Socket; 102. Upper support portion; 103. Lower support portion; 104. Support plate; 105. Shock-absorbing plate; 106. Dust-proof plate; 107. Inner rib; 108. Outer rib; 109. Cavity; 110. Sealing strip; 111. Connecting strip; 112. Outer positioning portion; 113. Inner positioning portion; 114. Bending portion; 115. Anchor plate; 116. Mounting groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-3 , a rubber dust-proof and noise-reducing device for bridge expansion joints includes symmetrically arranged receiving parts 101, and the two receiving parts 101 are respectively fixed to the two ends of the bridge to be connected, and an upper support part 102 and a lower support part 103 are symmetrically provided on the side of the receiving parts 101 close to each other. The upper support part 102 is used for supporting when a vehicle passes through, and the bottom of the upper support part 102 is provided with a support plate 104 fixed on the receiving part 101, and the support plate 104 plays a supporting role, and is used to support the dust-proof plate 106 to contact the upper support part 102. A shock-absorbing plate 105 and a dust-proof plate 106 are provided between the upper support part 102 and the support plate 104, and the shock-absorbing plate 105 is fixedly connected to the bottom of the dust-proof plate 106. Preferably, the shock-absorbing plate 105 is made of rubber material and adapts to the shaking between the two bridges through elastic compression. The top of the dust-proof plate 106 is slidably connected to the upper support part 102;

[0027] refer to Figure 2 and Figure 3 , the top of one end of the support plate 104 away from the receiving member 101 is provided with an inner rib 107, the inner rib 107 and the outer rib 108 are arranged in cooperation with each other, the outer rib 108 plays a supporting role and can slide on the two inner ribs 107, the inner rib 107 plays a role in limiting the position of the shock absorbing plate 105, preventing the shock absorbing plate 105 from moving out of the support plate 104, and the bottom of the shock absorbing plate 105 is provided with an outer rib 108 in contact with the support plate 104;

[0028] refer to Figure 2 and Figure 3A cavity 109 is provided at the top of the lower support portion 103. The cavity 109 is used to accommodate a connecting strip 111. A sealing strip 110 is provided between the symmetrical receiving members 101. Both ends of the sealing strip 110 are connected to the connecting strips 111 located in the cavity 109. The connecting strip 111 is used to fix the sealing strip 110 between the two cavities 109. The sealing strip 110 plays a role in guiding water flow. An external positioning portion 112 is provided above the cavity 109. An internal positioning portion 113 corresponding to the external positioning portion 112 is provided on the top of the connecting strip 111. The external positioning portion 112 and the internal positioning portion 113 cooperate with each other. It plays a positioning role. When the two receiving parts 101 move toward the sealing strip 110, the relative position of the connecting strip 111 in the cavity 109 will be maintained to prevent it from rotating. Because the circular connecting strip 111 will rotate, thereby generating debris, which in turn affects the sealing and water-conducting ability of the sealing strip 110; another function is that when the sealing strip 110 is removed from the bottom, the connecting strips 111 at both ends of the sealing strip 110 will move toward the middle, and the outer positioning part 112 and the inner positioning part 113 are two parallel inclined surfaces, which are inclined toward the bottom of the end away from the sealing strip 110, so as to facilitate removal and installation through the inclined surface.

[0029] After long-term use, the sealing strip 110 needs to be replaced. The following provides a quick replacement structure: Figure 2 and Figure 3 Specifically, the sealing strip 110 is provided with a bending portion 114, and there are preferably three bending portions 114. When the sealing strip 110 needs to be replaced, the middle bending portion 114 can be squeezed from the bottom to the top, and the bending portions 114 on both sides are moved toward the middle, making it easier to remove it. The same applies to installation.

[0030] Specifically, refer to Figure 1 A groove is formed on the side of the receiving member 101 away from the sealing strip 110, and an anchor plate 115 is connected to the groove, which facilitates fixing the receiving member 101 on the bridge.

[0031] Specifically, refer to Figure 3 The anchor plate 115 is provided with an installation groove 116 to facilitate installation with the embedded steel bars.

[0032] Specifically, refer to Figure 1 The top of the receiving member 101 is provided with anti-slip stripes to increase the friction when the vehicle passes by.

[0033] Specifically, refer to Figure 3 One end of the upper support portion 102 is provided with an inclined surface to facilitate the vehicle to move from the receiving member 101 at one end to the receiving member 101 at the other end.

[0034] Specifically, refer to Figure 3 The top of the anchor plate 115 away from the receiving member 101 is provided with a downward inclined surface, which is convenient for pouring concrete on the top of the anchor plate 115, so as to connect and fix it with the bridge.

[0035] In this embodiment, the two assembled receiving parts 101 are placed in the reserved grooves at the ends of the bridge beams, and then the anchor plates 115 are firmly welded to the embedded bars and poured with concrete to form the shape. During the use of the bridge, the beam body will be affected by temperature changes, concrete shrinkage, load, settlement and creep of the piers and other factors, and the span structure will be deformed, thereby causing the beam body to move. At this time, the receiving parts 101 and the beam body are integrated, and the displacement of the beam body drives the shock-absorbing plate 105 and the dust-proof plate 106 at the bottom of the receiving parts 101 to move, thereby achieving a good expansion and contraction effect. When the sealing strip 110 needs to be replaced, it can be taken out from both sides or the bottom and then replaced.

[0036] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A rubber dust and noise reduction device for a bridge expansion joint, comprising symmetrically arranged receiving parts (101), characterized in that: An upper supporting portion (102) and a lower supporting portion (103) are symmetrically provided on one side of the receiving member (101) close to each other, a supporting plate (104) fixed to the receiving member (101) is provided at the bottom of the upper supporting portion (102), a shock absorbing plate (105) and a dustproof plate (106) are provided between the upper supporting portion (102) and the supporting plate (104), the shock absorbing plate (105) is fixedly connected to the bottom of the dustproof plate (106), and the top of the dustproof plate (106) is slidably connected to the upper supporting portion (102); An inner rib (107) is provided at the top of one end of the support plate (104) away from the receiving member (101), and an outer rib (108) in contact with the support plate (104) is provided at the bottom of the shock-absorbing plate (105); A cavity (109) is provided at the top of the lower support portion (103), and a sealing strip (110) is provided between the symmetrical receiving parts (101). Both ends of the sealing strip (110) are connected to connecting strips (111) located in the cavity (109). An external positioning portion (112) is provided above the cavity (109), and an internal positioning portion (113) corresponding to the external positioning portion (112) is provided at the top of the connecting strip (111).

2. The rubber dust and noise reduction device for bridge expansion joints according to claim 1 is characterized in that: The sealing strip (110) is provided with a bending portion (114).

3. The rubber dust and noise reduction device for bridge expansion joints according to claim 1 is characterized in that: A groove is provided on a side of the receiving member (101) away from the sealing strip (110), and an anchoring plate (115) is connected in the groove.

4. The rubber dust and noise reduction device for bridge expansion joints according to claim 3 is characterized in that: The anchoring plate (115) is provided with a mounting groove (116).

5. The rubber dust and noise reduction device for bridge expansion joints according to claim 1, characterized in that: The top of the receiving member (101) is provided with anti-slip stripes.

6. The rubber dust and noise reduction device for bridge expansion joints according to claim 1, characterized in that: One end of the upper support portion (102) is provided with an inclined surface.

7. The rubber dust and noise reduction device for bridge expansion joints according to claim 4, characterized in that: A downwardly inclined surface is provided on the top of one end of the anchoring plate (115) away from the receiving member (101).

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