Combined steel rail noise reduction and sound absorption device

Abstract

The invention discloses a combined steel rail noise reduction and sound absorption device which comprises a rail body. Sound absorption mechanisms are arranged at the two ends of the track body, the sound absorption mechanisms are arranged on the track body and fixed through mounting mechanisms, each mounting mechanism comprises mounting plates, the two ends of the track body are connected with two mounting plates, the two mounting plates are connected with adjusting assemblies, clamping plates are arranged on the adjusting assemblies, clamping blocks are arranged on the upper portions of one sides of the clamping plates, and clamping grooves are formed in the inner sides of the connecting plates; the other end of the sound absorption mechanism is connected with one end of the connecting plate, the lower portions of the other ends, away from the adjusting assembly, of the two mounting plates are connected with fixing blocks, inserting blocks are arranged on the connecting plate, the fixing blocks and the inserting blocks are slidably connected in a sleeved mode, and protective assemblies are arranged at the tops of the two mounting plates. The screw rod is in threaded fit with the sliding block, the sliding block, the connecting plate and the sound absorption mechanism are driven to move, the sound absorption mechanism is fixed, and convenience is improved.

Description

Technical Field

[0001] The invention relates to the technical field of railway noise reduction accessory devices, in particular to a combined rail noise reduction and sound absorption device. Background Art

[0002] At present, the rapid development of rail transit system has not only alleviated the traffic pressure to a great extent, but also, because of its large capacity and environmental protection advantages, it has increasingly become a major artery in my country's transportation field. With the increase of train speed and the increase of traffic density, the train will produce harmful effects such as environmental vibration and noise during operation, which will have an increasingly greater impact on the surrounding environment along the line and the internal environment of the operating vehicles. As people's requirements for quality of life continue to increase, residents along the subway line are dissatisfied with the noise of rail transit, and the noise problem caused by rail transit has gradually turned into a livelihood issue. During the running of the train, rail vibration is the main cause of wheel-rail noise. Therefore, taking measures to reduce vibration and noise on the rails is the most effective and direct way. In the prior art, when reducing vibration and noise on rails, it is generally adopted to stick a damping structure on the surface of the rail. The main method is: using a damping layer, a metal constraint plate and other materials to stick to the upper surface of the rail waist and the bottom of the rail in sequence. For example, the patent with publication number CN102304881A in the prior art discloses a rail damping vibration isolator, which has a structure in which a damping layer, a metal constraint plate layer and a magnetic material layer are laid on the rail waist from the inside to the outside in sequence. The damping layer includes a first damping layer and a second damping layer, the metal constraint plate layer includes a first metal constraint plate layer and a second metal constraint plate layer, the first damping layer, the first metal constraint plate layer, the magnetic material layer, the second damping layer and the second metal constraint plate layer are laid in sequence from the inside to the outside, and there is also a rubber protective layer on the outside of the second metal constraint plate layer.

[0003] Most of the damping structures in the prior art adopt a multi-layer form or set the multi-layer structure as an integrated structure. The adhesion strength, reliability and durability of the damping layer are difficult to guarantee, and there is a risk of the damping layer falling off, affecting the safety of train driving. In addition, when the structure is partially peeled off, it is impossible to perform local maintenance and modification. It can only be completely dismantled and then re-polished and glued and installed. It often requires a long-term railway blockade and cannot be quickly disassembled, which affects the normal operation of the railway, thereby reducing the convenience of the device and making it impossible to promote and use it on a large scale. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a combined rail noise reduction and sound absorption device, which solves the problem that the existing rail sound absorption device cannot be quickly disassembled, which affects the normal operation of the railway, thereby reducing the convenience of the device and making it impossible to promote and use the device on a large scale.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a combined rail noise reduction and sound absorption device, comprising a rail body, a sound absorption mechanism and an installation mechanism; sound absorption mechanisms are provided at both ends of the rail body, and the sound absorption mechanisms are arranged on the rail body and fixed by the installation mechanism.

[0006] Furthermore, the mounting mechanism includes a mounting plate, a connecting plate, a splint, an insert block, a fixed block, a clamping block, a protective assembly and an adjusting assembly. Two sets of mounting plates are connected at both ends of the track body. The two sets of mounting plates are connected with adjusting assemblies. A splint is provided on the adjusting assembly. A clamping block is provided on the upper part of one side of the splint. A clamping groove is provided on the inner side of the connecting plate. The clamping block is embedded in the clamping groove of the connecting plate and clamped. The other end of the sound absorbing mechanism is connected to one end of the connecting plate. Fixed blocks are connected to the lower part of the other end of the two sets of mounting plates away from the adjusting assembly. Inserting blocks are provided on the connecting plates. The fixing block and the inserting block are slidably sleeved. Protective assemblies are provided on the tops of the two sets of mounting plates.

[0007] Furthermore, the adjustment component includes a screw and a slider. Slide grooves are opened on the two sets of mounting plates. Through holes are opened on the inner walls of the slide grooves. The screw is used to pass through the through holes and insert into the mounting plates. A slider is provided on the screw. The screw and the slider are connected by threads, and the slider is embedded in the slide grooves of the mounting plates and is slidably connected.

[0008] Furthermore, the protective assembly includes a support block, a positioning block and a protective shell. A group of support blocks are arranged on the top of the two groups of mounting plates. A card slot is opened on the inner side of the support block. The bottom of the protective shell is connected to a positioning block. The positioning block of the protective shell is used to be embedded in the card slot of the support block for sliding card installation.

[0009] Furthermore, the protection component also includes a connecting screw, and a through-type threaded hole is opened on the support block and the positioning block. The connecting screw is used to pass through the threaded hole and be threadedly connected with the support block and the positioning block.

[0010] Furthermore, the mounting mechanism also includes a sponge pad, and a sponge pad is further provided between the connecting plate and the clamping plate, and the sponge pad is in close contact with the connecting plate and the clamping plate.

[0011] Furthermore, the adjustment assembly also includes a first handle, and the other end of the screw rod away from the inner wall of the mounting plate is connected to the first handle.

[0012] Furthermore, the protection assembly also includes a second handle, and the second handle is connected to the other end of the connecting screw away from the supporting block and the positioning block.

[0013] Compared with the existing technology, the present invention has the following beneficial effects: the present invention drives the slider, the connecting plate and the sound absorbing mechanism to move by cooperating with the screw and the slider thread. After the connecting plate slides a certain distance, one end of the sound absorbing mechanism will be tightly attached to one end of the outer wall of the groove. At the same time, the clamping block of the connecting plate will be inserted into the clamping groove of the fixed block. The sound absorbing mechanism is fixed by the self-locking effect of the screw and the slider thread, so that the staff can quickly install the sound absorbing mechanism, reduce the impact on the normal operation of the railway, improve the convenience of the device, and enhance the feasibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the track body of the present invention.

[0015] Figure 2 It is a schematic diagram of the planar structure of the track body of the present invention when viewed from above.

[0016] Figure 3 It is a schematic diagram of the front plan structure of the track body of the present invention.

[0017] Figure 4 It is a schematic diagram of the enlarged local structure of A of the present invention.

[0018] Figure numerals: 1. track body; 2. sound absorption mechanism; 3. installation mechanism; 4. installation plate; 5. connecting plate; 6. clamping plate; 7. plug-in block; 8. fixing block; 9. clamping block; 10. screw; 11. slider; 12. support block; 13. positioning block; 14. protective shell; 15. connecting screw; 16. sponge pad; 17. first handle; 18. second handle. DETAILED DESCRIPTION

[0019] like Figure 1-Figure 2 As shown, the present invention provides a technical solution: a combined rail noise reduction and sound absorption device, including a rail body 1, a sound absorption mechanism 2 and a mounting mechanism 3; sound absorption mechanisms 2 are provided at both ends of the rail body 1, and the sound absorption mechanisms 2 are fixed to the concave outer walls on both sides of the rail body 1 through the mounting mechanism 3.

[0020] Among them, the mounting mechanism 3 includes a mounting plate 4, a connecting plate 5, a clamping plate 6, an insert block 7, a fixing block 8, a clamping block 9, a protective component and an adjusting component. Two groups of mounting plates 4 are connected at both ends of the track body 1. Adjusting components are connected to the two groups of mounting plates 4. A clamping plate 6 is provided on the adjusting component. A clamping block 9 is provided on the upper part of one side of the clamping plate 6. A clamping groove is provided on the inner side of the connecting plate 5. The clamping block 9 is embedded in the clamping groove of the connecting plate 5 and clamped. The other end of the sound absorbing mechanism 2 is connected to one end of the connecting plate 5. A fixing block 8 is connected to the lower part of the other end away from the adjusting component on the two groups of mounting plates 4. An insert block 7 is provided on the connecting plate 5. The fixing block 8 and the insert block 7 are slidably sleeved. A protective component is provided on the top of the two groups of mounting plates 4. When the sound absorbing mechanism 2 needs to be installed on the track body 1, the staff first aligns the clamping groove of the connecting plate 5 with the The clamping block 9 of the quasi-plywood 6 installs the connecting plate 5 and the sound absorbing mechanism 2 on the plywood 6, and the staff manually turns the first handle 17, so that the first handle 17 drives the screw 10 to rotate, so that the screw 10 and the slider 11 are threadedly matched, driving the slider 11 to slide along the slide groove of the mounting plate 4, and while the slider 11 slides, it also drives the connecting plate 5 and the sound absorbing mechanism 2 assembled on the plywood 6 to move toward one end of the outer wall of the groove of the track body 1. After the connecting plate 5 slides a certain distance, the insert block 7 enters the interior from the groove opening of the fixing block 8. When one end of the sound absorbing mechanism 2 is tightly attached to one end of the outer wall of the groove, the insert block 7 will be completely inserted into the groove of the fixing block 8, and the sound absorbing mechanism 2 is fixed by the self-locking effect of the screw 10 and the slider 11 threads.

[0021] like Figure 3 As shown; wherein, the adjustment component includes a screw 10 and a slider 11, two groups of mounting plates 4 are provided with slide grooves, the inner wall of the slide grooves is provided with through holes, the screw 10 is used to pass through the through holes and insert into the mounting plate 4, a slider 11 is provided on the screw 10, the screw 10 and the slider 11 are connected by threads, and the slider 11 is embedded in the slide groove of the mounting plate 4 for sliding connection; the screw 10 and the slider 11 are threadedly matched to drive the slider 11, the clamping plate 6, the connecting plate 5 and the sound absorbing mechanism 2 to move, thereby facilitating the staff to quickly install the sound absorbing mechanism 2, reducing the impact on the normal operation of the railway, improving the convenience of the device, and strengthening the feasibility.

[0022] like Figure 4 As shown; wherein, the protective assembly includes a support block 12, a positioning block 13 and a protective shell 14, a group of support blocks 12 are arranged on the top of the two groups of mounting plates 4, a card slot is opened on the inner side of the support block 12, and the bottom of the protective shell 14 is connected with a positioning block 13, and the positioning block 13 of the protective shell 14 is used to be embedded in the card slot of the support block 12 for sliding card installation; the protective assembly can effectively improve the protective effect of the sound absorbing mechanism 2, thereby enhancing the practicality.

[0023] Among them, the protective component also includes a connecting screw 15, and a through-type threaded hole is opened on the support block 12 and the positioning block 13, and the connecting screw 15 is used to pass through the threaded hole and threadedly connect with the support block 12 and the positioning block 13; if it is necessary to disassemble the protective component, the second handle 18 is manually turned to drive the connecting screw 15 to rotate, and the connecting screw 15 is screwed out from the threaded holes of the support block 12 and the positioning block 13, and the positioning block 13 of the protective shell 14 is pulled out from the slot of the support block 12, and the protective shell 14 is disassembled, which is convenient for disassembly or replacement of the protective shell 14. During assembly, the positioning block 13 of the protective shell 14 is inserted into the slot of the support block 12, and the connecting screw 15 is inserted into the threaded holes of the support block 12 and the positioning block 13 to fix the protective shell 14, which allows the staff to quickly limit and fix the protective shell 14, thereby enhancing practicality.

[0024] Among them, the mounting mechanism 3 also includes a sponge pad 16, and a sponge pad 16 is also provided between the connecting plate 5 and the clamping plate 6, and the sponge pad 16 is in close contact with the connecting plate 5 and the clamping plate 6; the sponge pad 16 can effectively reduce the damage to the connecting plate 5 and the clamping plate 6 caused by extrusion friction, thereby enhancing practicality.

[0025] like Figure 4 As shown; wherein, the adjustment assembly also includes a first handle 17, and the other end of the screw rod 10 away from the inner wall of the mounting plate 4 is connected to the first handle 17; the staff can quickly rotate the screw rod 10, thereby enhancing practicality.

[0026] like Figure 3 As shown; wherein, the protective assembly also includes a second handle 18, and the other end of the connecting screw 15 away from the support block 12 and the positioning block 13 is connected to the second handle 18; the staff can quickly rotate the connecting screw 15, thereby enhancing practicality.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined rail noise reduction and sound absorption device, characterized in that: It includes a track body, a sound absorbing mechanism and a mounting mechanism; both ends of the track body are provided with sound absorbing mechanisms, which are arranged on the track body and fixed by the mounting mechanism.

2. The combined rail noise reduction and sound absorption device according to claim 1, characterized in that: The mounting mechanism comprises a mounting plate, a connecting plate, a clamping plate, an insert block, a fixed block, a clamping block, a protective component and an adjusting component. Two sets of mounting plates are connected at both ends of the track body. The two sets of mounting plates are connected with adjusting components. A clamping plate is provided on the adjusting component. A clamping block is provided on the upper part of one side of the clamping plate. A clamping groove is provided on the inner side of the connecting plate. The clamping block is embedded in the clamping groove of the connecting plate and clamped. The other end of the sound absorbing mechanism is connected to one end of the connecting plate. A fixed block is connected to the lower part of the other end of the two sets of mounting plates away from the adjusting component. An insert block is provided on the connecting plate. The fixed block and the insert block are slidably sleeved. A protective component is provided on the top of the two sets of mounting plates.

3. The combined rail noise reduction and sound absorption device according to claim 2 is characterized in that: The adjustment assembly includes a screw and a slider. Slide grooves are opened on the two sets of mounting plates. Through holes are opened on the inner walls of the slide grooves. The screw is used to pass through the through holes and insert into the mounting plates. A slider is provided on the screw. The screw and the slider are connected by threads, and the slider is embedded in the slide grooves of the mounting plates for sliding connection.

4. The combined rail noise reduction and sound absorption device according to claim 3 is characterized in that: The protective assembly includes a support block, a positioning block and a protective shell. A group of support blocks are arranged on the top of the two groups of mounting plates. A card slot is opened on the inner side of the support block. The bottom of the protective shell is connected to a positioning block. The positioning block of the protective shell is used to be embedded in the card slot of the support block for sliding card installation.

5. The combined rail noise reduction and sound absorption device according to claim 4, characterized in that: The protection component also includes a connecting screw rod. The support block and the positioning block are provided with through-type threaded holes. The connecting screw rod is used to pass through the threaded holes and be threadedly connected with the support block and the positioning block.

6. The combined rail noise reduction and sound absorption device according to claim 5, characterized in that: The installation mechanism also includes a sponge pad, and a sponge pad is further arranged between the connecting plate and the clamping plate, and the sponge pad is in close contact with the connecting plate and the clamping plate.

7. The combined rail noise reduction and sound absorption device according to claim 6, characterized in that: The adjustment assembly also includes a first handle, and the other end of the screw rod away from the inner wall of the mounting plate is connected to the first handle.

8. The combined rail noise reduction and sound absorption device according to claim 7, characterized in that: The protection assembly also includes a second handle, and the second handle is connected to the other end of the connecting screw away from the supporting block and the positioning block.

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