Road and bridge noise reduction device

Abstract

The utility model belongs to the technical field of noise reduction, and provides a road and bridge noise reduction device which comprises a limiting frame, sound insulation cotton, a sliding block and a baffle. The baffle and the limiting frame jointly form a sliding groove, the sliding block is in sliding fit with the sliding groove, the baffle is hinged to the limiting frame, a strip-shaped frame is fixed to the side wall of the limiting frame, and a limiting strip is slidably arranged in the strip-shaped frame in a sleeved mode and located on the outer side of the baffle. The sound insulation cotton is fixedly connected with the sliding block. When the device is used and the sound insulation cotton needs to be replaced, the limiting strips are pressed into the strip-shaped frames, so that the limiting strips are separated from the baffles, then the baffles are rotated to open the sliding grooves, and the sound insulation cotton needing to be replaced at any position can be directly taken out. In the device, the stability of the sliding block can be improved through the arrangement of the limiting rod. And by rotating the screw rod, the sliding sleeve can be driven to move along the screw rod, and then the limiting rod is driven to move, so that after the limiting rod is separated from the sliding block, the sliding block can automatically fall in the sliding groove, and soundproof cotton can be conveniently added from the uppermost portion.

Description

Technical Field

[0001] The utility model belongs to the technical field of noise reduction, and particularly relates to a noise reduction device for road bridges. Background Art

[0002] The noise generated by a car during driving will affect the nearby residents, and a noise reduction device is needed for this. When the existing noise reduction device is in use, first, the limit frame needs to be fixed on the top of the road or the bridge, and then multiple sound insulation cotton pieces are sequentially slid down from top to bottom into the limit frame through the connecting blocks. Because the internal structure of the sound insulation cotton is full of gaps and voids, it can absorb sound waves and convert the sound waves into heat energy, thereby effectively weakening the sound waves, and thus effectively reducing the noise generated by the car during driving.

[0003] However, the existing noise reduction device has at least the following problems: during actual use, when there is water on the ground, the car will splash water onto the surface of the sound insulation cotton during driving, especially there is more water on the bottom sound insulation cotton, and the water on the top of the sound insulation cotton may gradually flow to the bottom, resulting in the bottom sound insulation cotton being contaminated, which not only affects the appearance but also reduces the sound insulation effect, and then the bottom sound insulation cotton needs to be replaced. However, the installation process of the sound insulation cotton is to slide it into the limit frame one by one from top to bottom. When replacing the bottom sound insulation cotton, it is necessary to take out all the sound insulation cotton from top to bottom in sequence, which is very troublesome. Content of the Utility Model

[0004] In view of the deficiencies of the existing technology, the utility model provides a noise reduction device for road bridges, and the sound insulation cotton at any position that needs to be replaced can be directly taken out by rotating the baffle to open the sliding groove.

[0005] To achieve the above object, the utility model adopts the following technical solutions: a noise reduction device for road bridges, including a limit frame, sound insulation cotton, sliding blocks, and a baffle;

[0006] The baffle and the limit frame together form a sliding groove, the sliding blocks are slidably matched with the sliding groove, the baffle is hinged to the limit frame, a strip-shaped frame is fixed on the side wall of the limit frame, and a limit strip is slidably sleeved in the strip-shaped frame, and the limit strip is located outside the baffle;

[0007] The sound insulation cotton is fixedly connected to the sliding blocks.

[0008] Preferably, a first spring is arranged in the strip-shaped frame, and two ends of the first spring are respectively fixedly connected to the limit strip and the inner wall of the strip-shaped frame.

[0009] Preferably, it further includes a sliding sleeve, a screw rod, and a limit rod;

[0010] The limiting rod sequentially passes through the limiting frame and the sliding block. The screw rod is rotatably installed on the limiting frame. The sliding sleeve is threadedly sleeved on the screw rod. The sliding sleeve is fixedly connected to the limiting rod, and the limiting rod is parallel to the screw rod.

[0011] Preferably, it further includes a connecting plate and a guiding plate;

[0012] The connecting plate is fixedly connected to the limiting rod. The guiding plate is fixedly connected to both the connecting plate and the sliding sleeve at the same time. The guiding plate passes through the limiting frame, and the guiding plate is parallel to the limiting rod.

[0013] Preferably, it further includes a rotating disk;

[0014] A rotating block is coaxially fixed to the end of the screw rod, and the rotating disk is slidably sleeved outside the rotating block.

[0015] Preferably, a clamping groove is formed on the side wall of the rotating block. A clamping block is slidably fitted in the clamping groove, and the clamping block is fixedly connected to the inner wall of the rotating disk.

[0016] Preferably, it further includes a fixing rod, an L-shaped plate, and a connecting ring;

[0017] The connecting ring is rotatably sleeved outside the rotating disk. The connecting ring is fixedly connected to the L-shaped plate. A locking hole is formed through the L-shaped plate. A positioning hole is provided on the limiting frame. One end of the fixing rod passes through the locking hole and extends into the positioning hole.

[0018] Preferably, a end cap is formed at the other end of the fixing rod. A second spring is sleeved on the fixing rod. One end of the second spring is fixedly connected to the end cap, and the other end of the second spring is fixedly connected to the L-shaped plate.

[0019] Preferably, two limiting rings are fixedly arranged on the outside of the rotating disk, and the connecting ring is located between the two limiting rings.

[0020] Preferably, a groove is provided on the side wall of the limiting frame. A round rod is fixedly arranged in the groove. A connecting block is rotatably sleeved outside the round rod, and the baffle is fixedly connected to the connecting block.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] 1. For a road and bridge noise reduction device provided by the present utility model, when it is necessary to replace the sound insulation cotton, the limiting strip is pressed into the strip-shaped frame, so that the limiting strip is separated from the baffle, and then the baffle is rotated to open the sliding groove, and the sound insulation cotton to be replaced at any position can be directly taken out.

[0023] 2. The noise reduction device for road bridges provided by the present utility model, in which the setting of the limiting rod can improve the stability of the sliding block. By rotating the screw rod, the sliding sleeve can be driven to move along the screw rod, and then drive the limiting rod to move. After the limiting rod is separated from the sliding block, the sliding block can automatically fall in the chute, facilitating the addition of sound insulation cotton from the topmost part. Description of the Drawings

[0024] Figure 1 It is a three-dimensional structure schematic diagram of a noise reduction device for road bridges provided by an embodiment of the present utility model;

[0025] Figure 2 It is a partial enlarged structure schematic diagram of a noise reduction device for road bridges provided by an embodiment of the present utility model;

[0026] Figure 3 For Figure 2 The enlarged structure schematic diagram at A in

[0027] Figure 4 It is a three-dimensional structure schematic diagram of the rotating block and its related parts of a noise reduction device for road bridges provided by an embodiment of the present utility model.

[0028] In the drawings, the list of components represented by each reference numeral is as follows:

[0029] 1. Limiting frame; 2. Sound insulation cotton; 3. Sliding block; 401. Groove; 402. Round rod; 403. Baffle; 404. Limiting rod; 405. Connecting plate; 406. Guide plate; 407. Sliding sleeve; 408. Screw rod; 409. Rotating block; 410. Strip-shaped frame; 411. Limiting strip; 412. First spring; 501. Rotating disc; 502. Positioning groove; 503. Positioning block; 504. Limiting ring; 505. Connecting ring; 506. L-shaped plate; 507. Fixed rod; 508. Positioning hole; 509. Second spring. Detailed Embodiments

[0030] The following further details the present utility model in conjunction with specific embodiments, so that those skilled in the art can understand the present utility model more clearly.

[0031] It should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" in the terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrally formed structure. For those of ordinary skill in the art, the specific meanings of such terms in the present utility model can be understood according to specific circumstances.

[0032] Embodiment 1

[0033] This embodiment provides a noise reduction device for road bridges, including a limiting frame 1, sound insulation cotton 2, a sliding block 3, and a baffle 403;

[0034] The baffle 403 and the limit frame 1 together form a chute. The sliding block 3 is slidably engaged with the chute. The baffle 403 is hinged to the limit frame 1. By turning the baffle 403 outward, the chute can be opened. A strip-shaped frame 410 is fixed on the side wall of the limit frame 1. A limit strip 411 is slidably sleeved in the strip-shaped frame 410. The limit strip 411 is located outside the baffle 403, which can prevent the baffle 403 from turning outward. The sound insulation cotton 2 is fixedly connected to the sliding block 3.

[0035] For example, as Figure 1 and 3 shown, the horizontal cross-section of the limit frame 1 is a T-shaped structure. There is a baffle 403 on each of the left and right sides of the limit frame 1. The baffle 403 is vertically arranged. The two baffles 403 and the limit frame 1 together form two chutes, and the two chutes are respectively open towards the left and right sides.

[0036] The chute with an opening towards the right formed by the left limit frame 1 and the chute with an opening towards the left formed by the right limit frame 1 together form a slideway. Four sound insulation cottons 2 are vertically arranged in the slideway. Correspondingly, four sliding blocks 3 are vertically arranged in each of the two chutes. The sound insulation cotton 2 is fixedly connected to the corresponding sliding blocks 3 on both sides at the same time. In this way, when the sliding block 3 slides in the chute, it can drive the corresponding sound insulation cotton 2 to slide synchronously.

[0037] Based on the above structure, when the sound insulation cotton 2 needs to be replaced, the limit strip 411 is pressed into the strip-shaped frame 410 so that the limit strip 411 is disengaged from the baffle 403. Then, the chute can be opened by rotating the baffle 403, and the sound insulation cotton that needs to be replaced at any position can be directly taken out. The operation is simple and convenient.

[0038] When installing a new sound insulation cotton, it can be directly slid in from the top of the chute. In this way, the situation of the sound insulation cotton being polluted by water still decreases from top to bottom in turn, thereby avoiding the water in the upper sound insulation cotton flowing to the lower sound insulation cotton and affecting the sound insulation effect of the new sound insulation cotton.

[0039] As Figure 3 shown, a first spring 412 is arranged in the strip-shaped frame 410. The two ends of the first spring 412 are respectively fixedly connected to the limit strip 411 and the inner wall of the strip-shaped frame 410. When the first spring 412 is in a natural state, the limit strip 411 is located outside the baffle 403. In this way, after the limit strip 411 is pressed in by an external force, due to the elastic force of the first spring 412, the limit strip 411 can automatically return to its original position without manual extraction.

[0040] As Figure 2As shown in the figure, a groove 401 is provided on the side wall of the limit frame 1. A round rod 402 is fixedly provided in the groove 401. A connecting block is rotatably sleeved outside the round rod 402, and the baffle 403 is fixedly connected to the connecting block. The arrangement of the connecting block and the round rod 402 in the groove 401 can prevent protruding parts and ensure the flatness of the side surface of the limit frame 1.

[0041] Embodiment 2

[0042] On the basis of Embodiment 1, in this embodiment, it further includes a sliding sleeve 407, a screw rod 408, and a limit rod 404.

[0043] As Figure 2 shown, the limit rod 404 sequentially penetrates through the limit frame 1 and the sliding block 3. A base is formed at the bottom of the limit frame 1. The screw rod 408 is rotatably installed on the base. The sliding sleeve 407 is threadedly sleeved on the screw rod 408. The sliding sleeve 407 is fixedly connected to the limit rod 404, and the limit rod 404 is parallel to the screw rod 408.

[0044] The arrangement of the limit rod 404 can improve the stability of the sliding block 3 and prevent the sliding block 3 from shaking up and down. At the same time, by rotating the screw rod 408, the sliding sleeve 407 can be driven to move along the screw rod 408, and then drive the limit rod 404 to move until the limit rod 404 is separated from the sliding block 3, and the sliding block 3 can automatically fall in the chute, which is convenient for adding sound insulation cotton from the top.

[0045] In this embodiment, it further includes a connecting plate 405 and a guiding plate 406;

[0046] The connecting plate 405 is fixedly connected to the limit rod 404. The guiding plate 406 is fixedly connected to both the connecting plate 405 and the sliding sleeve 407 at the same time. The guiding plate 406 penetrates through the limit frame 1, and the guiding plate 406 is parallel to the limit rod 404.

[0047] For example, as Figure 2 shown, the connecting plate 405 is located behind the limit frame 1. Four limit rods 404 and a guiding plate 406 are fixed on the connecting plate 405. Correspondingly, a first guiding hole adapted to the guiding plate 406 is provided through the bottom of the limit frame 1, and the guiding plate 406 is slidably inserted into the first guiding hole; four second guiding holes are provided at intervals along the vertical direction on the limit frame 1, and at the same time, each of the four sliding blocks 3 is provided with a through hole, and the limit rod 404, the second guiding hole, and the through hole correspond one by one. One end of the limit rod 404 away from the connecting plate 405 sequentially passes through the corresponding second guiding hole and the through hole.

[0048] Based on the above structure, the limit rod 404 can fix the corresponding sliding block 3 in the corresponding position, prevent the sliding block 3 from freely moving in the chute, facilitate the stability of the overall transportation after installation, and at the same time can also ensure the stability of the sliding block 3 during use and avoid it being separated from the chute by external force.

[0049] When installing the thermal insulation cotton, by rotating the screw rod 408, the connecting plate 405 moves backward until the limiting rod 404 disengages from the sliding block 3, facilitating the subsequent addition or removal of the thermal insulation cotton.

[0050] In this embodiment, as Figure 4 shown, it further includes a rotating disc 501;

[0051] The end of the screw rod 408 is coaxially fixed with a rotating block 409, and the rotating disc 501 is slidably sleeved outside the rotating block 409.

[0052] The setting of the rotating disc 501 facilitates the staff to quickly rotate the screw rod 408.

[0053] A clamping groove 502 is formed on the side wall of the rotating block 409, a clamping block 503 is slidably fitted in the clamping groove 502, and the clamping block 503 is fixedly connected to the inner wall of the rotating disc 501.

[0054] Based on the above structure, by pulling the rotating disc 501 along the sliding direction of the clamping groove 502, the rotating disc 501 can be quickly disassembled or installed, and the operation is simple and convenient.

[0055] To ensure the stability of the rotating disc 501, in this embodiment, it further includes a fixing rod 507, an L-shaped plate 506, and a connecting ring 505;

[0056] The connecting ring 505 is rotatably sleeved outside the rotating disc 501, the connecting ring 505 is fixedly connected to the L-shaped plate 506, a locking hole is formed through the L-shaped plate 506, a positioning hole 508 is provided on the limiting frame 1, and one end of the fixing rod 507 passes through the locking hole and extends into the positioning hole 508.

[0057] The setting of the fixing rod 507 can prevent the L-shaped plate 506 from moving along the sliding direction of the clamping groove 502, and further prevent the rotating disc 501 from moving along the sliding direction of the clamping groove 502, effectively improving the stability of the rotating disc 501.

[0058] Wherein, the other end of the fixing rod 507 forms an end cap, a second spring 509 is sleeved on the fixing rod 507, one end of the second spring 509 is fixedly connected to the end cap, and the other end of the second spring 509 is fixedly connected to the L-shaped plate 506. The second spring 509 is in a stretched state, generating a downward pulling force on the fixing rod 507, so that the fixing rod 507 is always in the positioning hole 508, which can prevent the fixing rod 507 from easily disengaging.

[0059] Two limiting rings 504 are fixedly arranged outside the rotating disc 501, and the connecting ring 505 is located between the two limiting rings 504.

[0060] The provision of the limiting ring 504 can prevent the connecting ring 505 from moving back and forth outside the rotating disk 501 or even detaching from the rotating disk 501.

[0061] In the present utility model, the mechanisms, components, and parts for which no specific structures are described are existing structures that already exist in the prior art and can be directly purchased on the market.

[0062] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings. They are only for the convenience of describing 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, as well as a specific orientation structure and operation. Therefore, it should not be construed as a limitation to the present utility model. In addition, "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0063] The above are only the preferred embodiments of the present utility model and are not intended to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A road bridge noise reduction device, characterized in that: It comprises a limit frame (1), sound insulation cotton (2), a sliding block (3), and a baffle (403); The baffle plate (403) and the limit frame (1) together form a slide groove, the sliding block (3) is slidably matched with the slide groove, the baffle plate (403) and the limit frame (1) are hinged, a strip frame (410) is fixed on the side wall of the limit frame (1), a limit strip (411) is slidably sleeved inside the strip frame (410), and the limit strip (411) is located on the outside of the baffle plate (403); The sound insulation cotton (2) is fixedly connected to the sliding block (3).

2. A road bridge noise reduction device according to claim 1, characterized in that: A first spring (412) is provided in the bar frame (410), and two ends of the first spring (412) are respectively fixedly connected to the limit strip (411) and the inner wall of the bar frame (410).

3. A road bridge noise reduction device according to claim 1, characterized in that: It also includes a sliding sleeve (407), a screw rod (408), and a limiting rod (404); The limiting rod (404) passes through the limiting frame (1) and the sliding block (3) in sequence, the screw rod (408) is rotatably mounted on the limiting frame (1), the sliding sleeve (407) is threadedly sleeved on the screw rod (408), the sliding sleeve (407) is fixedly connected to the limiting rod (404), and the limiting rod (404) is parallel to the screw rod (408).

4. A road bridge noise reduction device according to claim 3, characterized in that: It also includes a connecting plate (405) and a guide plate (406); The connecting plate (405) is fixedly connected to the limiting rod (404), and the guide plate (406) is fixedly connected to the connecting plate (405) and the sliding sleeve (407) at the same time. The guide plate (406) passes through the limiting frame (1), and the guide plate (406) is parallel to the limiting rod (404).

5. A road bridge noise reduction device according to claim 3, characterized in that: Also includes a rotating disk (501); A rotating block (409) is coaxially fixed to the end of the screw rod (408), and the rotating disk (501) is slidably sleeved on the outside of the rotating block (409).

6. A road bridge noise reduction device according to claim 5, characterized in that: A locking groove (502) is provided on the side wall of the rotating block (409), a locking block (503) is slidably fitted in the locking groove (502), and the locking block (503) is fixedly connected to the inner wall of the rotating disk (501).

7. A road bridge noise reduction device according to claim 5, characterized in that: It also includes a fixing rod (507), an L-shaped plate (506), and a connecting ring (505); The connecting ring (505) is rotatably sleeved on the outer side of the rotating disk (501), the connecting ring (505) is fixedly connected to the L-shaped plate (506), a locking hole is penetrated on the L-shaped plate (506), a positioning hole (508) is provided on the limiting frame (1), and one end of the fixing rod (507) passes through the locking hole and extends into the positioning hole (508).

8. A road bridge noise reduction device according to claim 7, characterized in that: The other end of the fixing rod (507) is formed with an end cap, and the fixing rod (507) is sleeved with a second spring (509), one end of the second spring (509) is fixedly connected to the end cap, and the other end of the second spring (509) is fixedly connected to the L-shaped plate (506).

9. A road bridge noise reduction device according to claim 7, characterized in that: Two limiting rings (504) are fixed on the outer side of the rotating disk (501), and the connecting ring (505) is located between the two limiting rings (504).

10. A road bridge noise reduction device according to claim 1, characterized in that: A groove (401) is provided on the side wall of the limiting frame (1), a round rod (402) is fixedly provided in the groove (401), a connecting block is rotatably sleeved on the outer side of the round rod (402), and the baffle (403) is fixedly connected to the connecting block.

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