Railway inserting plate type metal sound barrier III-type unit plate

Abstract

The utility model belongs to the technical field of sound barriers, and particularly relates to a railway inserting plate type metal sound barrier III-type unit plate. The novel metal sound barrier unit plate comprises a main beam, an edge beam and a unit plate arranged between the main beam and the edge beam, the main beam and the edge beam are each provided with a labyrinth type clamping groove, the clamping grooves are used for inserting and positioning sound absorbers of the unit plate, each labyrinth type clamping groove comprises a groove wall composed of two opposite vertical plates and a labyrinth cavity formed in the groove bottom, transverse plates are arranged on the inner sides of the vertical plates, and the transverse plates are arranged on the inner sides of the vertical plates. The transverse plate and the groove bottom are provided with protrusions distributed at intervals, the protrusions of the transverse plate and the groove bottom are staggered to form a labyrinth cavity, and a through opening of the labyrinth cavity is formed in the inner side of the transverse plate. The novel metal sound barrier unit plate can quickly and effectively absorb high-speed rail pulsating airflow and noise impact, the sound absorption and noise reduction effect is long-acting and stable, and the novel metal sound barrier unit plate has the advantages of being compact in structure, stable in connection, economical and durable.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of sound barriers, and in particular relates to a railway plug-in plate type metal sound barrier III type unit plate. BACKGROUND

[0002] A sound barrier is an effective railway noise prevention measure, wherein a plug-in plate type metal sound barrier is composed of steel columns and unit plates. The sound barrier steel columns are arranged along the railway line, and the unit plates are inserted between the sound barrier steel columns to form a sound barrier facility for noise reduction on both sides of the railway.

[0003] The existing metal sound barrier unit plate is mainly composed of a panel, a back plate forming a box cavity, and a sound absorbing body arranged in the box cavity. Since the sound barrier is close to the rail, the noise load impact directly acts on the unit plate when the high-speed railway passes, causing high-frequency vibration of the unit plate. The sound absorbing body inside the unit plate cannot timely and quickly remove the wind pressure and noise double impact, resulting in fatigue loss, greatly shortening the functional life. Secondly, the positioning of the sound absorbing body in the plate cavity is generally a mechanical clamping structure, which lacks elastic buffering. High-frequency vibration causes great mechanical damage to the sound absorbing body, which is prone to problems such as collapse, displacement, and even falling off, thereby hindering the normal use of the sound barrier. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a railway plug-in plate type metal sound barrier unit plate which can quickly and effectively absorb the high-speed rail pulsating airflow and noise impact and has long-term stable sound absorption and noise reduction effect, and has the characteristics of compact structure, stable connection, and economic durability.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A railway plug-in plate type metal sound barrier III type unit plate, comprising a main beam, a side beam, and a unit plate arranged between the main beam and the side beam, characterized in that: the main beam and the side beam are provided with a labyrinth clamping groove, the clamping groove is used for inserting and positioning a sound absorbing body of the unit plate, the labyrinth clamping groove comprises a groove wall composed of two opposite vertical plates and a labyrinth cavity arranged at the groove bottom, a horizontal plate is arranged on the inner side of the vertical plate, the horizontal plate and the groove bottom are both provided with protrusions distributed at intervals, the protrusions of the two are staggered to form the labyrinth cavity, and the inner side of the horizontal plate has a through port of the labyrinth cavity.

[0007] The additional technical features of the above-mentioned railway plug-in plate type metal sound barrier III type unit plate further comprise:

[0008] The cross section of the main beam is H-shaped, the upper side and the lower side of the main beam are both provided with a socket for inserting the side edge of the unit plate, the cross section of the side beam is U-shaped, the one-way groove of the side beam is used for inserting the side edge of the unit plate, and the middle part of the groove bottom plate of the at least one side groove of the main beam and the one-way groove of the side beam is provided with the labyrinth clamping groove.

[0009] The unit plate comprises a cartridge cavity shell, which comprises an integrally bent panel, a back plate and a connecting bottom plate, and the opening of the cartridge cavity shell has a bent flange, and the end of the bent flange has an inner buckle edge;

[0010] The sound absorbing body is placed in the cartridge cavity shell, and the sound absorbing body is a rock wool sound absorbing block, the upper part of the rock wool sound absorbing block is positioned in the labyrinth card slot in the lower side groove of the main beam, the lower part of the rock wool sound absorbing block is positioned in the labyrinth card slot in the unidirectional groove of the side beam, and the side beam is arranged at the bottom of the cartridge cavity shell;

[0011] The groove bottom surface of the upper side groove of the main beam is provided with a plurality of grooves, including drainage grooves on both sides and a plurality of positioning grooves arranged in the middle, a rubber water stop plate is arranged between the drainage grooves on the groove bottom, the surface of the rubber water stop plate is provided with a plurality of ridges, and the ridges are matched with the positioning grooves;

[0012] The two sides of the groove bottom of the upper side groove of the main beam and the two sides of the rubber water stop plate, and the two sides of the groove bottom of the lower side groove of the main beam and the bent flanges at the opening of the cartridge cavity shell of the unit plate are connected by bolts or anchor bolts;

[0013] A plurality of foam aluminum sound absorbing plates are further arranged in the cartridge cavity shell, the foam aluminum sound absorbing plates are arranged on the front and rear sides of the sound absorbing body respectively, cement fiber plates are arranged on the outer sides of the foam aluminum sound absorbing plates, and the cement fiber plates are arranged on the side close to the back plate of the cartridge cavity shell;

[0014] The groove bottoms of the main beam groove and the side beam groove are respectively provided with a plurality of vertical protrusions corresponding in position, and adjacent vertical protrusions form a card slot for positioning the foam aluminum sound absorbing plate and the cement fiber plate;

[0015] The cartridge cavity shell of the unit plate is respectively provided with end closure plates at the left and right ends, the end closure plates comprise a surrounding plate and clamping plates arranged on the front and rear sides of the surrounding plate, the clamping plates are double-layer clamping grooves, elastic rubber sheets are arranged in the clamping grooves, and the outer end edges of the elastic rubber sheets form deformed capsules.

[0016] Compared with existing technologies, the Type III unit panel of the railway insert-type metal sound barrier provided by this utility model has the following advantages: The main beam and side beams of the sound barrier unit panel are equipped with labyrinth-type slots for positioning the edges of the sound absorbers. Compared with traditional simple slots, the labyrinth-type slots provide stable positioning and engagement of the unit panel, and contain labyrinth cavities that can quickly and effectively absorb wind pressure and noise impact, reducing the damage to the interior of the unit panel caused by pulse vibration. Specifically, the aforementioned labyrinth-type slot includes a groove wall composed of two opposing vertical plates and a labyrinth cavity at the bottom of the groove. A horizontal plate is provided inside the vertical plates, and the horizontal plate connects to the groove... The bottom is equipped with spaced protrusions, which intersect to form a labyrinth cavity. The inner side of the horizontal plate has an opening for the labyrinth cavity, that is, the bottom of the slot forms two symmetrical labyrinth cavities. The load impacts such as noise, airflow, and wind pressure transmitted from the unit panel are introduced into the labyrinth cavity through the opening, and then flow back to the contact position between the metal sound barrier and the steel profile for release. This effectively releases the wind pressure, significantly reduces the stress on the unit panel itself, thereby reducing fatigue wear and extending the service life of the sound barrier. The vibration reduction and noise reduction function of the sound barrier unit panel is extended, and it has the advantages of tight assembly structure, stable connection and positioning, and good economic benefits. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a type III unit panel for a railway insert-type metal sound barrier according to this utility model;

[0018] Figure 2 This is a schematic diagram of the cross-section of the end plate of this unit plate structure. Detailed Implementation

[0019] The structure and working principle of the novel metal sound barrier unit panel provided by this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] In the description of this utility model, unless otherwise stated, the terms "horizontal / vertical", "inner / outer", "upper / lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model 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 this utility model.

[0021] It should be noted that unless otherwise expressly specified and limited, the terms "mounting", "connecting", "providing" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] As shown in Figure 1 The structure of the novel metal sound barrier unit plate includes a main beam 1, a side beam 2 and a unit plate arranged between the two, the main beam 1 and the side beam 2 are provided with a labyrinth card slot 4, the card slot is used for inserting and positioning the sound absorbing body 3 of the unit plate, the labyrinth card slot 4 includes a slot wall composed of two opposite vertical plates 41 and a labyrinth cavity 42 arranged at the slot bottom, the inner side of the vertical plate 41 is provided with a transverse plate 43, the transverse plate 43 and the slot bottom are both provided with protrusions 44 distributed at intervals, the protrusions 44 of the two stagger to form the labyrinth cavity 42, and the inner side of the transverse plate 43 has a through port 45 of the labyrinth cavity 42.

[0023] The working principle is as follows: the metal sound barrier unit plate is inserted and positioned between the main beam 1 and the side beam 2, compared with the traditional slot structure, the main beam 1 and the side beam 2 of the utility model are both provided with a labyrinth card slot 4, the slot wall is composed of two opposite vertical plates 41, and a labyrinth cavity 42 is additionally arranged at the slot bottom, that is, a transverse plate 43 is arranged at the inner side of the opposite vertical plate 41, the transverse plate 43 and the slot bottom are both provided with protrusions 44 distributed at intervals, the protrusions 44 of the two stagger to form the labyrinth cavity 42, and the inner side of the transverse plate 43 has a through port 45 of the labyrinth cavity 42, two symmetrical labyrinth cavities 42 are formed at the slot bottom of the labyrinth card slot 4, and the pulse airflow, wind pressure, noise and the like conducted by the unit plate panel impact on the sound absorbing body 3 and then enter the labyrinth cavity 42 through the through ports 45 at the upper and lower ends, so that the impact energy is buffered and consumed, the vibration loss is reduced, and the service life of the sound absorption and noise reduction function is prolonged.

[0024] In the structure of the above-mentioned novel metal sound barrier unit plate,

[0025] In one embodiment, the above-mentioned main beam 1 is H-shaped in cross-section, and the upper and lower side grooves 11 can be inserted into the side edges of the unit plate, that is, the sound barrier is formed by vertically splicing a plurality of unit plates, and the main beam 1 is arranged between adjacent unit plates to connect them; the above-mentioned side beam 2 is U-shaped in cross-section, and the one-way groove is used to insert the side edge of the unit plate, that is, the side beam 2 can be arranged at the top of the uppermost unit plate and the bottom of the lowermost unit plate of the sound barrier respectively;

[0026] The unit plate comprises a cavity shell, which comprises a face plate 61, a back plate 62 and a connecting bottom plate 63 integrally formed by bending, the opening of the cavity shell has a bent flange 64, the end of the bent flange 64 has an inner buckle 65, the open cavity is convenient for processing and manufacturing and can effectively place and position the sound absorption body 3, and the assembly efficiency is high;

[0027] It should be noted that the unit plate shell integrally formed by bending has one end opening (bent flange) and one end closing (connecting bottom plate), and when arranged vertically, it is only suitable for the main beam 1 provided with the one-side labyrinth clamping groove 4, if it is rotated by 90 degrees for stacking and assembling, the open areas on both sides of the shell are arranged vertically, and it is suitable for the main beam 1 provided with the labyrinth clamping groove 4 on both sides;

[0028] For example, the sound absorption body 3 placed in the cavity shell is a rock wool sound absorption block, the upper part of the rock wool sound absorption block is inserted and positioned in the labyrinth clamping groove 4 in the lower side profile groove of the main beam 1, the lower part of the rock wool sound absorption block is inserted and positioned in the labyrinth clamping groove 4 in the one-way profile groove of the side beam 2, the side beam 2 is arranged at the bottom of the cavity shell, the bottom of the cavity shell of the unit plate is arranged in the upper side profile groove of the adjacent main beam 1, and the profile groove of the main beam 1 is not provided with the labyrinth clamping groove 4;

[0029] Further, in order to realize rapid drainage of the sound barrier and avoid water accumulation between unit plates, a plurality of grooves are arranged on the groove bottom surface of the upper side profile groove of the main beam 1, including drainage grooves 71 arranged on both sides and a plurality of positioning grooves 72 arranged in the middle, a rubber water stop plate 73 is arranged on the groove bottom between the drainage grooves 71, the surface of the rubber water stop plate 73 is provided with a plurality of ridges 74, the ridges 74 are matched with the positioning grooves 72, the rubber water stop plate 73 has an elastic buffering effect, after being matched and positioned, the inter-plate coupling of the upper and lower sound barrier unit plates is free of gaps, plays a role in sound insulation, buffers vibration due to wind pressure, enhances the fatigue resistance of the sound barrier unit plate as a whole, and has the advantages that the open cavity is convenient for processing and manufacturing, can effectively place and position the sound absorption body 3, and the assembly efficiency is high;

[0030] Preferably, the two sides of the groove bottom of the upper side profile groove of the main beam 1 and the two sides of the bent flange 64 of the opening of the cavity shell of the unit plate are connected by bolts or anchor bolts 75, the stability of the water stop plate is improved, and the inter-plate assembly is more firm;

[0031] A plurality of foam aluminum sound absorption plates 51 are further arranged in the cavity shell, the foam aluminum sound absorption plates 51 are arranged on the front and back sides of the sound absorption body 3, that is, the foam aluminum sound absorption plates 51 clamp the rock wool sound absorption block to form a composite sound absorption body 3, the foam aluminum metal material can prevent dust and sand from entering the rock wool, and the dust can be naturally removed under rainwater washing, so that the sound absorption body 3 is kept clean, and the rock wool block is clamped in the middle of the foam aluminum, even if weathering occurs after long-term use, the rock wool block can still maintain the original state of fluffiness, and continuously plays a sound absorption and insulation role;

[0032] A cement fiber board 52 is provided on the outside of the foamed aluminum sound-absorbing panel 51. The cement fiber board 52 is placed on the side of the back plate 62 near the outer shell of the box cavity. The cement fiber board 52 also has a good sound insulation effect and has the advantages of impact resistance and fatigue resistance.

[0033] —In order to effectively position the composite structure of the sound absorber 3, the bottom of the main beam type 1 groove and the side beam type 2 groove are provided with multiple vertical protrusions 46 corresponding to the positions. Adjacent vertical protrusions 46 form slots for positioning the foam aluminum sound absorber 51 and the cement fiber board 52. The socket assembly is simple and convenient, and the replacement and maintenance are also convenient.

[0034] --like Figure 2 As shown, in order to improve the sealing of the unit plate, end caps 8 are respectively provided at the left and right ends of the outer shell of the unit plate cavity. The end cap 8 includes a surrounding plate 81 and clamping plates 82 provided on the front and rear sides of the surrounding plate 81. The clamping plates 82 are clamping grooves 83 composed of double-layer plates. Elastic sheets 84 are provided in the clamping grooves 83. The outer edge of the elastic sheet 84 forms a deformable bladder 85. The deformable bladder 85 of the elastic sheet 84 is placed between the unit plate and the sound barrier steel column, which has a damping buffering effect and avoids the problem of traditional rigid contact being unable to withstand vibration and impact. Multiple protruding ribs 80 can be provided on the surrounding plate 81 of the end cap 8 to play a role in structural reinforcement and enable the surrounding plate 81 to achieve a certain degree of elastic deformation, further mitigating impact loss.

[0035] The above-described embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit the implementation of this utility model. Therefore, any other modifications or equivalent substitutions to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A railway bollard-type metal sound barrier type III unit panel comprising a main beam, a side beam, and a unit panel disposed therebetween, characterized in that: The main beam and the side beam are provided with a labyrinth slot for inserting and positioning the sound absorbing body of the unit plate, the labyrinth slot comprises a slot wall formed by two opposite vertical plates and a labyrinth cavity provided at the slot bottom, the inner side of the vertical plate is provided with a transverse plate, the transverse plate and the slot bottom are both provided with protrusions distributed at intervals, the protrusions of the two stagger to form the labyrinth cavity, and the inner side of the transverse plate has a through port of the labyrinth cavity.

2. The railway bollard-type metal sound barrier type III unit panel according to claim 1, characterized in that: The main beam has an H-shaped cross section, the upper side and the lower side of the main beam are provided with a socket for inserting the side edge of the unit plate, the side beam has a U-shaped cross section, and the one-way groove of the side beam is used for inserting the side edge of the unit plate, and the middle part of the groove bottom plate of the at least one side groove of the main beam and the one-way groove of the side beam is provided with the labyrinth slot.

3. The railway bollard-type metal sound barrier III unit panel according to claim 1, characterized in that: The unit plate comprises a box cavity shell, which comprises a face plate, a back plate and a connecting bottom plate integrally bent and formed, the opening of the box cavity shell has a bent flange, and the end of the bent flange has an inner buckle edge.

4. The railway bollard-type metal sound barrier III type unit panel according to claim 3, characterized in that: The box cavity shell is placed in the sound absorbing body, the sound absorbing body is a rock wool sound absorbing block, the upper part of the rock wool sound absorbing block is inserted and positioned in the labyrinth slot in the lower side groove of the main beam, the lower part of the rock wool sound absorbing block is inserted and positioned in the labyrinth slot in the one-way groove of the side beam, and the side beam is arranged at the bottom of the box cavity shell.

5. The railway bollard-type metal sound barrier type III unit panel according to claim 4, characterized in that: The groove bottom surface of the upper side groove of the main beam is provided with a plurality of grooves, including drainage grooves at both sides and a plurality of positioning grooves arranged in the middle part, a rubber water stop plate is arranged between the drainage grooves, a plurality of ridges are arranged on the surface of the rubber water stop plate, and the ridges are matched with the positioning grooves.

6. The railway bollard-type metal sound barrier type III unit panel according to claim 5, characterized by: The two sides of the groove bottom of the upper side groove of the main beam are connected with the two side edges of the rubber water stop plate, and the two sides of the groove bottom of the lower side groove of the main beam are connected with the bent flanges at the opening of the box cavity shell of the unit plate through bolts or anchor bolts.

7. The railway bollard-type metal sound barrier type III unit panel according to claim 3, characterized in that: A plurality of aluminum foam sound absorbing plates are further arranged in the box cavity shell, the aluminum foam sound absorbing plates are arranged on the front and back sides of the sound absorbing body respectively, cement fiber plates are arranged on the outer sides of the aluminum foam sound absorbing plates, and the cement fiber plates are arranged on the side close to the back plate of the box cavity shell.

8. The railway bollard-type metal sound barrier type III unit panel according to claim 7, characterized by: The groove bottoms of the main beam groove and the side beam groove are respectively provided with a plurality of vertical protrusions corresponding in position, and adjacent vertical protrusions form a clamping groove for positioning the aluminum foam sound absorbing plate and the cement fiber plate.

9. The railway bollard-type metal sound barrier III type unit panel according to claim 3, characterized in that: The left and right ends of the box cavity shell of the unit plate are respectively provided with end plates, the end plate comprises a surrounding plate and clamping plates arranged on the front and back sides of the surrounding plate, the clamping plate is a clamping groove formed by double-layer plates, an elastic film is arranged in the clamping groove, and the outer end edge of the elastic film forms a deformation capsule.

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