阅读说明：本技术 一种可熔断、可控开启的降声罩顶盖 (Sound reduction cover top cover capable of being fused and opened controllably ) 是由 侯强 何海林 杨鑫 唐云 杨宝山 曾伟钊 刘彦东 于 2021-09-30 设计创作，主要内容包括：本发明提供一种可熔断/开启的降声罩顶盖,包括：可熔断/开启盖板结构和平移开启关闭机构,所述可熔断/开启盖板结构,包括金属框架和置于其上降噪材料；所述可熔断/开启盖板结构中金属框架材料为金属材料；所述可熔断/开启盖板结构中降噪材料为可熔断降噪板；所述平移开启关闭结构设置在远火点位置,用以将所述可熔断/开启盖板结构平移滑动,将所述降声罩顶盖打开和关闭。发生火灾时,平移开启关闭机构可打开顶盖。即便万一之可能,平移开启机构变形无法打开顶盖时,可熔断降噪板自身可以熔断脱落,实现顶部打开功能。降声罩不仅仅依赖于熔断或仅仅依赖开启,从而提供更高的安全保障和安全冗余度,是工程实践中创新解决了工程实践中难题。(The invention provides a fusible/openable sound reduction hood top cover, comprising: a fusible/openable cover structure and a movable opener/closer mechanism, the fusible/openable cover structure including a metal frame and a noise reduction material disposed thereon; the metal frame material in the fusible/openable cover plate structure is a metal material; the noise reduction material in the fusible/openable cover plate structure is a fusible noise reduction plate; the translational opening and closing structure is arranged at a far fire point position and used for enabling the fusible/opening cover plate structure to slide in a translational mode and opening and closing the sound reduction cover top cover. When a fire disaster happens, the translational opening and closing mechanism can open the top cover. Even if the possibility exists, when the translation opening mechanism is deformed and the top cover cannot be opened, the fusible noise reduction plate can be fused and fall off, and the top opening function is realized. The sound reduction cover is not only dependent on fusing or only dependent on opening, so that higher safety guarantee and safety redundancy are provided, and the sound reduction cover is an innovation in engineering practice and solves the problem in engineering practice.)

1. A fusible/openable sound reduction cover top, comprising: the method comprises the following steps: a fusible/openable cover structure and a movable opener/closer mechanism, the fusible/openable cover structure including a metal frame and a noise reduction material disposed thereon; the metal frame material in the fusible/openable cover plate structure is a metal material; the noise reduction material in the fusible/openable cover plate structure is a fusible noise reduction plate; the translational opening and closing structure is arranged at a far fire point position and used for enabling the fusible/opening cover plate structure to slide in a translational mode and opening and closing the sound reduction cover top cover.

2. A fusible/openable sound reduction cover top according to claim 1, wherein: the said fusible/opening cover plate structure is a single-layer fusible/opening cover plate structure and a double-layer fusible/opening cover plate structure.

3. A fusible/openable sound reduction cover top according to claim 2, wherein: the single-layer fusible/openable cover plate and the double-layer fusible/openable cover plate structure open and close the sound reduction cover in a translational sliding manner.

4. A fusible/openable sound reduction cover top according to claim 1, wherein: the translation opening and closing mechanism comprises a rail, an electric push rod or a pneumatic push rod, a connecting arm, a roller, a sealing brush and an electric push rod mounting fixing/protecting accessory; the track is provided with the meltable cutting/opening cover plate structure which can slide; the electric push rod or the pneumatic push rod is arranged at a far fire point through the electric push rod mounting fixing/protecting accessory; the roller, the connecting arm and the sealing brush are arranged on the fusible/openable cover plate structure; and the push rod of the electric push rod or the pneumatic push rod is connected to the connecting arm.

5. A fusible/openable sound reduction cover top according to claim 1, wherein: the translation opening and closing mechanism comprises an electric push rod or a pneumatic push rod, a connecting arm, a sealing brush, an electric push rod installation fixing/protection accessory, a roller and a C-shaped sliding chute; the roller is arranged on the side edge of the metal frame of the fusible/openable cover plate structure, is connected through a bearing and slides in the C-shaped sliding groove.

6. A fusible/openable sound reduction cover top according to claim 1, wherein: the translation opening and closing mechanism comprises a pulley guide rail mechanism and an anti-drop track, wherein the pulley guide rail mechanism comprises a driving mechanism, a transmission device, a transmission shaft, a pulley and a guide rail; the power output by the driving mechanism drives the pulley fixed on the transmission shaft to rotate through the transmission device; the guide rail is arranged in the anti-falling track.

7. A fusible/openable sound reduction cover top according to claim 1, wherein: the translation opening and closing mechanism comprises a sliding guide rail structure and a gear rack driving system, wherein the sliding guide rail structure is a rolling linear guide sleeve pair, and the rolling linear guide sleeve pair comprises a guide rail shaft and a linear motion type bearing; the guide rail shaft is arranged at the upper part of the sound reduction cover top cover, and the linear motion type bearing is arranged at the bottom surface of the fusible/openable cover plate structure; the gear rack driving system comprises a driving mechanism, a driving gear and a rack; the driving mechanism outputs power through the driving gear, the rack is arranged on the bottom surface of the fusible/openable cover plate structure, and the driving gear is meshed with the rack; the driving mechanism is arranged on the metal frame of the sound reduction cover stapling cover.

Technical Field

The invention relates to a sound reduction cover device applied to a transformer substation or a converter station and noise control in the petroleum and petrochemical industry, in particular to a sound reduction cover top cover capable of being fused and opened controllably.

Background

At present, the top of the sound reduction cover IN the noise treatment industry mostly adopts a closed top cover scheme, such as a BOX-IN top cover of a converter transformer. When the converter transformer is IN fire and explosion, the closed top cover of the BOX-IN cannot be opened IN time, so that huge potential safety hazards and economic loss can be caused. In order to deal with fire safety, different technical means are proposed in the prior patent documents:

patent document 1 (CN 209277311U) discloses a fire roof apparatus in which: the fusible fixing piece is connected with the outer frame and the sealing plate, when a fire disaster occurs, the fusible fixing piece is fused, the sealing plate is overturned around the outer frame under the self gravity, and then the sealing plate is automatically opened to form a fire-fighting window, so that a fire-fighting medium is conveniently injected into the interior of the sound insulation cover to extinguish the fire.

Patent document 2 (CN 110180109A) discloses a BOX-IN device, IN which an explosion-releasing and falling-off sound-insulating plate at the top is made of a high-temperature hot-melt material and can automatically fall off IN case of fire; fixed sound insulation board adopts the packing sound insulation board, packs and sets up one deck hot melt material board between sound insulation board and the support steel construction, and hot melt material board extends to let out to explode the bottom that drops the sound insulation board and supports it, and hot melt material board plays the supporting role to letting out to explode the sound insulation board that drops and fill the sound insulation board at ordinary times, and when the change of current becomes to catch fire, hot melt material board can melt very fast, lets out to explode and drops the sound insulation board and can drop.

Patent document 3 (CN 110152223A) discloses an extra-high voltage converter transformer protective structure, which is a high-temperature fusible sound-deadening structure that rapidly melts and disappears to form an opening when the temperature reaches 150 ℃ during explosive combustion.

Patent document 4 (CN 213527236U) discloses a sound absorption and insulation safety device suitable for a BOX-IN of a converter station, wherein an output end of an opening and closing mechanism is connected with a noise reduction plate, and when a fire extinguishing system carried IN a BOX-IN supporting frame cannot complete fire extinguishing operation, the opening and closing mechanism opens the noise reduction plate on the BOX-IN supporting frame to prevent the BOX-IN from becoming a fire extinguishing obstacle.

In addition to the above technical means, the applicant of the present invention develops patent products through many years of diligent research and development: a particulate noise reduction panel is made from a thermosetting binder. The particle noise reduction plate is applied to a transformer substation or a converter station and the petroleum and petrochemical industry, and meets the mechanical and acoustic requirements in normal use; when in explosion and fire disaster, the explosion venting and fusing can be well realized, and enough space and time are provided for fire fighting.

However, the prior art still has the following disadvantages that can not be repudiated: the BOX-IN patent documents 1 to 3 is still a closed top cover, and only the trigger mechanism IN case of fire/explosion is considered, but the burning time and the burning fire point position of the hot melt material may cause that the hot melt material cannot be fused IN time. IN the corresponding technology represented by patent document 4, although the BOX-IN top cover can be opened, the triggering mechanism during fire/explosion is: when fire breaks out, the BOX-IN extinguishes fire IN a closed state by means of a self-contained fire extinguishing system, so that fire IN the converter transformer at the initial stage of fire is prevented from spreading to the external space of the BOX-IN, and other electronic facilities are detonated; however, the initial high-temperature combustion, the mechanical structure deformation of the opening and closing device, the circuit failure and the like can cause that the top cover cannot be normally opened when the top cover is required to be opened. Further, the manner of turning the top cover open, as represented by patent document 4, restricts the direction in which the fire-fighting medium enters, and is located on the side where the top cover is lifted, which is not conducive to the entry of the fire-fighting medium. Even if the opening device is opened, the opening device can be damaged by high temperature in the fire fighting process.

IN addition to the need for fire protection, the BOX-IN also requires a top cover to be opened during normal use. When the equipment with high heat dissipation capacity is used inside, even if the exhaust system works normally, the heat dissipation requirement cannot be met. The temperature in the sound reducing cover is too high, the radiator runs under high load, and the energy consumption is increased; the equipment can be aged too fast, and the service life is shortened; under some circumstances, equipment in the sound reduction cover must be overhauled, and overhigh temperature is not beneficial to operation of maintainers. When the above situations are encountered in engineering practice, the heat dissipation problem is often solved by manually disassembling part of the top cover or completely disassembling the top cover, which brings some inevitable negative effects, such as: the disassembly workload is increased, the noise exceeds the standard, and the like.

How to solve the technical problem not only meets the noise treatment and heat dissipation requirements in the normal use process, but also meets the fire protection requirements in the case of fire/explosion. The sound reduction cover not only needs to be opened controllably, but also can provide other means to meet the fire-fighting requirement under the condition that the sound reduction cover cannot be opened extremely, and the sound reduction cover is not only fused or only opened, so that higher safety guarantee and safety redundancy are provided, and the sound reduction cover is a barrier which needs to be faced and overcome in engineering practice.

Disclosure of Invention

The invention provides a fusible/openable sound reduction hood top cover, comprising: a fusible/openable cover structure and a movable opener/closer mechanism, the fusible/openable cover structure including a metal frame and a noise reduction material disposed thereon; the metal frame material in the fusible/openable cover plate structure is a metal material; the noise reduction material in the fusible/openable cover plate structure is a fusible noise reduction plate; the translational opening and closing structure is arranged at a far fire point position and used for enabling the fusible/opening cover plate structure to slide in a translational mode and opening and closing the sound reduction cover top cover.

Further, the fusible/opening cover plate structure is a single-layer fusible/opening cover plate structure and a double-layer fusible/opening cover plate structure.

Further, the single-layer fusible/openable cover and the double-layer fusible/openable cover structure open and close the sound reduction cover in a translational sliding manner.

Further, the translation opening and closing mechanism comprises a rail, an electric push rod or a pneumatic push rod, a connecting arm, a roller, a sealing brush and an electric push rod mounting fixing/protecting accessory; the track is provided with the meltable cutting/opening cover plate structure which can slide; the electric push rod or the pneumatic push rod is arranged at a far fire point through the electric push rod mounting fixing/protecting accessory; the roller, the connecting arm and the sealing brush are arranged on the fusible/openable cover plate structure; and the push rod of the electric push rod or the pneumatic push rod is connected to the connecting arm.

Further, the translation opening and closing mechanism comprises an electric push rod or a pneumatic push rod, a connecting arm, a sealing brush, an electric push rod installation fixing/protecting accessory, a roller and a C-shaped sliding groove; the roller is arranged on the side edge of the metal frame of the fusible/openable cover plate structure, is connected through a bearing and slides in the C-shaped sliding groove.

Further, the translation opening and closing mechanism comprises a pulley guide rail mechanism and an anti-falling track, wherein the pulley guide rail mechanism comprises a driving mechanism, a transmission device, a transmission shaft, a pulley and a guide rail. The power output by the driving mechanism drives the pulley fixed on the transmission shaft to rotate through the transmission device; the guide rail is arranged in the anti-falling track.

Furthermore, the translational opening and closing mechanism comprises a sliding guide rail structure and a gear and rack driving system, wherein the sliding guide rail structure is a rolling linear guide sleeve pair, and the rolling linear guide sleeve pair comprises a guide rail shaft and a linear motion type bearing; the guide rail shaft is arranged at the upper part of the sound reduction cover top cover, and the linear motion type bearing is arranged at the bottom surface of the fusible/openable cover plate structure; the gear rack driving system comprises a driving mechanism, a driving gear and a rack; the driving mechanism outputs power through the driving gear, the rack is arranged on the bottom surface of the fusible/openable cover plate structure, and the driving gear is meshed with the rack. The driving mechanism is arranged on the metal frame of the sound reduction cover stapling cover.

Further, a steel wire rope 9 is arranged on the metal frame of the fusible/openable cover plate structure; the steel wire rope is connected with the fusible/openable cover plate structure, and is connected to a winch on the firewall through the pulley arranged on the sound reduction cover top cover and the firewall in sequence.

Has the advantages that:

compared with the prior art, the invention has the following excellent effects:

1. when a fire disaster happens, the translational opening and closing mechanism can open the top cover. Even if the top cover cannot be opened due to the deformation of the translation opening mechanism, the fusible noise reduction plate can be fused and fall off, so that the top opening function is realized;

2. the translational opening and closing mechanism does not influence fusing;

3. when the heat dissipation requirement of the equipment is improved, the openable cover plate can be controlled to be opened through a switch at the background;

4. in the opening process of the openable cover plate, a proper opening degree can be selected according to specific heat dissipation requirements, so that different opening degrees corresponding to different heat dissipation requirements can be realized.

5. When the cover plate is opened pneumatically or electrically, the conventional repeated disassembly of the noise reduction plate is avoided, the aloft work is avoided, and the service life of the noise reduction plate is prolonged;

6. after the heat dissipation meets the requirements, the high-load stable operation of the equipment is facilitated, and the problems of equipment aging, internal operation environment and the like are improved.

Description of the drawings:

fig. 1-1 is a top plan view of an acoustical reduction enclosure of an embodiment (with a fusible/openable lid structure 3 in a closed state);

fig. 1-2 are top plan views of an acoustic enclosure of an embodiment (with the fusible/openable lid structure 3 in an open state);

FIGS. 1-3 are top cross-sectional views of an acoustic enclosure according to an embodiment;

FIGS. 1-4 are enlarged views of a fusible/openable lid structure 3 according to an embodiment;

FIGS. 1-5 are cross-sectional views of a fusible/openable lid structure 3 according to an embodiment;

FIGS. 1-6 are schematic views of a closed state of a fusible/openable lid structure 3 according to an embodiment;

FIGS. 1-7 are schematic views illustrating an opened state of a fusible/openable lid structure 3 according to an embodiment;

FIGS. 1-8 are schematic diagrams of an embodiment of a fusible/openable lid structure 3 blown;

FIG. 2-1 is a schematic view of a sliding mechanism of a second fusible/openable cover structure 3 according to an embodiment;

FIG. 3-1 is a schematic view of a structure of a third openable cover plate of the embodiment 1 (closed state);

FIG. 3-2 is a schematic view of a structure of a third openable cover plate of the embodiment 2 (closed state);

FIGS. 3-3 are schematic views of a third embodiment of an openable cover plate structure 1 (half-open state);

FIGS. 3-4 are schematic views of a third embodiment of an openable cover plate structure (semi-open state);

FIGS. 3-5 are schematic views of a structure of a three-way openable cover plate of the embodiment 1 (fully opened state);

FIGS. 3-6 are schematic diagrams of a third embodiment of an openable cover plate structure (fully open state);

FIGS. 3-7 are schematic perspective views (closed states) of three openable cover structures according to the embodiment;

FIGS. 3-8 are schematic perspective views of three openable cover structures (fully opened state) according to the embodiment;

FIGS. 3-9 illustrate the translation principle of the three-motor drive of the embodiment;

FIGS. 3-10 illustrate an embodiment of a breeze lift-over mechanism;

FIG. 4-1 is a schematic view of a structure of a four-openable cover plate of the embodiment 1 (closed state);

FIG. 4-2 is a schematic view of a structure of a four-openable cover plate of the embodiment shown in FIG. 2 (closed state);

FIGS. 4-3 are schematic views of a structure of a four-openable cover plate of the embodiment shown in FIG. 1 (in an opened state);

FIGS. 4-4 are schematic views of a structure of a four-openable cover plate of the embodiment shown in FIG. 2 (in an opened state);

FIGS. 4-5 are pictorial views of four sliding guides according to embodiments;

FIGS. 4-6 are pictorial diagrams of an embodiment four rack and pinion drive system;

FIGS. 4-7 are schematic structural views (open state) of a fourth embodiment of the manually openable cover;

fig. 4-8 are schematic structural views (closed state) of the four manual closing cover plates of the embodiment.

Detailed Description

The present invention will be further explained below for better understanding of the objects, technical solutions and technical effects of the present invention, but the scope of the present invention is not limited to the following examples.

Example 1:

1-5, a fusible/openable sound reduction hood top cover, comprising: the structure comprises a two-side noise reduction plate structure 1, a middle noise reduction plate structure 2, a fusible/openable cover plate structure 3, a track 4, an electric push rod or a pneumatic push rod 5, a connecting arm 6, a roller 7, a sealing brush 8 and an electric push rod installation fixing/protection accessory 9.

The fusible/openable cover plate structure 3 is disposed at the opening of the middle noise reduction plate structure 2, and is used for sealing the opening of the middle noise reduction plate structure 2.

The two-sided noise reduction plate structure 1 comprises a metal frame and a noise reduction material arranged on the metal frame. The metal frame material in the noise reduction plate structures 1 on two sides is galvanized steel plate, the thickness t =2.0mm, and the thickness of a zinc layer is 60 g/square meter. The noise reduction material in the two-side noise reduction plate structure 1 is a galvanized pore plate, t =0.8mm, the thickness of a zinc layer is 60 g/square meter, and the inside filling volume weight is 48kg/m for carrying out ultra-fine glass cotton (glass fiber cloth wrapping) through thin film evaporation.

Wherein, the middle noise reduction plate structure 2 comprises a metal frame and noise reduction materials arranged on the metal frame. The metal frame material in the middle noise reduction plate structure 2 is galvanized steel plate, the thickness t =2.0mm, and the thickness of a zinc layer is 60 g/square meter. The noise reduction material in the middle noise reduction plate structure 2 is a fusible noise reduction plate (the temperature inside the plate is 200-250 ℃ and the fusible noise reduction plate is fused), the fusible noise reduction plate is made of natural sand particles with specific meshes, the fusible noise reduction plate is a patent product of the applicant of the invention, the thickness t of the plate is =20mm, and waterproof paint is sprayed on the surface of the plate.

Wherein the fusible/openable cover structure 3 comprises a metal frame and a noise reducing material disposed thereon. The metal frame material in the fusible/openable cover plate structure 3 is a galvanized steel plate, the thickness t =2.0mm, and the thickness of a zinc layer is 60 g/square meter. The noise reduction material in the fusible/openable cover plate structure 3 is a fusible noise reduction plate (fusing occurs at the temperature of 200-250 ℃ inside the plate), the fusible noise reduction plate is made of natural sand particles with a specific mesh number, the thickness t of the plate is =20mm, and waterproof paint is sprayed on the surface (fusing occurs at the temperature of 200-250 ℃ inside the plate).

The two side noise reduction plate structures 1 and the middle noise reduction plate structure 2 are in the same plane, and the rails 4 are arranged at the upper parts of the two side noise reduction plate structures 1 and the middle noise reduction plate structure 2; the rails 4 can be selectively installed on the metal frames of the two side noise reduction plate structures 1 and the middle noise reduction plate structure 2; the said fusible/openable cover plate structure 3 is set on the said fusible/openable track 4. The electric push rod or the pneumatic push rod 5 is arranged on the bottom surface of the middle noise reduction plate structure 2 through the electric push rod mounting fixing/protecting accessory 9. The steel roller 7, the connecting arm 6 and the sealing brush 8 are disposed on the fusible/openable cover structure 3. The push rod of the electric push rod or the pneumatic push rod 5 is connected to the connecting arm 6.

Wherein, the track 4 material is Q235, and the height is 69.5 mm. The angle iron can also be equilateral angle iron, the material is Q235, and the model is 100 × 6 mm.

Wherein, the single thrust of electric putter or pneumatic push rod 5 can be 12.3KN, and the stroke is 1.2~1.5m, even longer. When the electric push rods are adopted, the single fusible/openable cover plate structure 3 with the standard size is provided with two electric push rods which are respectively arranged at two ends (shown in figures 1-5), and the remote synchronous control is realized by switching on a control line and a background switch. When the pneumatic push rod is adopted, the air pipe is communicated with the air compressor at the background, and the quantity is the same as that of the air pipe.

The connecting arm 6 is made of a Q235 steel plate and can be formed by welding self-made parts, and the thickness of the connecting arm is 5-8 mm.

Wherein the roller 7 is selectively installed on the metal frame of the fusible/openable cover structure 3, and the roller 7 may be a steel roller.

Wherein, the sealing brush 8 can be made of nylon and is arranged on two sides of the fusible/openable cover plate structure 3 different from the steel roller 7.

Optionally, the electric push rod or the pneumatic push rod 5 can be further mounted above the middle noise reduction plate structure 2 through the electric push rod mounting/protecting fitting 9, optionally, the electric push rod or the pneumatic push rod 5 is mounted on the metal frame of the middle noise reduction plate structure 2, and the connecting arms 6 are disposed on the left and right metal frames above the middle noise reduction plate structure 2.

Further, optionally, the electric push rod or the pneumatic push rod 5 can be further mounted above or below the noise reduction plate structures 1 on the two sides through the electric push rod mounting fixing/protecting fittings 9, and the push rod is in an extending state during normal use; when explosion/fire disaster occurs, the push rods of the electric push rods or the pneumatic push rods 5 are recovered, and the middle noise reduction plate structure 2 moves towards the side of the two side noise reduction plate structures 1, so that the top cover of the sound reduction cover is opened.

The working principle is as follows:

1) when the equipment is in low-load operation, the heat dissipation requirement is not high, and the equipment heat dissipation requirement can be met only by an exhaust system, the fusible/openable cover plate structure 3 is in a closed state (fig. 1-1). When the operation load and the heat dissipation requirement of the equipment are improved, and the exhaust system cannot meet the heat dissipation requirement of the equipment, the electric push rod or the pneumatic push rod 5 can be controlled to start to work through a background electric switch (a circuit breaker), the thrust of the electric push rod or the pneumatic push rod 5 is transmitted to the fusible/openable cover plate structure 3 through the connecting arm 6, the fusible/openable cover plate structure 3 can slide to one side along the track 4 in a flat-open mode, and when the sliding distance reaches 1.2-1.5 m, the electric push rod or the pneumatic push rod 5 stops working and keeps the current state (fig. 1-2). In the sliding process, proper opening degree can be selected according to specific heat dissipation requirements so as to realize that different heat dissipation requirements correspond to different opening degree. When the fusible/openable cover plate structure 3 is in a closed state, the gaps between the fusible/openable cover plate structure 3 and the two side noise reduction plate structures 1 and the middle noise reduction plate structure 2 are reduced in noise leakage through the sealing brushes 8, and the effects of sand prevention, leakage prevention and the like are achieved.

2) When a fire occurs inside and the fire is caught, in an extreme case, the openable mechanism may deform under the combustion of flame and cannot open the fusible/openable cover plate structure 3, but the fusible particle plate of the fusible/openable cover plate structure 3 deforms and softens at a high temperature to fuse and fall off, so that the top opening function is realized. The fusible noise reduction plate can be broken into small blocks in the fusing process, the small blocks can not shield and cover flame, and space conditions are created for fire fighting operation to the maximum extent (figures 1-8).

3) Since the opening structure (including: rails, rollers, electric push rods, etc. and further including electric push rod mounting/protecting accessories) are installed outside the fusible noise reduction plate (for example, the rails are installed on the middle noise reduction plate structure 2) (fig. 1-5, enlarged views of ii), so that the opening structure of the fusible/openable cover plate structure 3 does not affect the fusing process in the fusing deformation process.

4) In the embodiment of example 1, the electric push rod or the pneumatic push rod 5 is mounted above the middle noise reduction plate structure 2 through the electric push rod mounting and fixing/protecting fitting 9, so that the push rod of the electric push rod or the pneumatic push rod 5 can be better protected, and when the electric push rod or the pneumatic push rod is in a fire, the push rod does not need to be directly contacted with flames from below and high temperature.

Example 2:

as shown in fig. 2-1, the sliding mechanism was optimized based on embodiment 1. Referring to embodiment 1, a fusible/openable sound reduction hood top cover includes: the noise reduction plate comprises a two-side noise reduction plate structure 1, a middle noise reduction plate structure 2, a fusible/openable cover plate structure 3, an electric push rod or a pneumatic push rod 5, a connecting arm 6, a sealing brush 8, an electric push rod installation fixing/protection accessory 9, a C-shaped sliding groove 4 and a roller 7.

The roller 7 can be made of steel or nylon, is arranged on the side edge of the metal frame of the fusible/openable cover plate structure 3 and is connected with the metal frame through a bearing, and at least 4 roller 7 are arranged on each fusible/openable cover plate structure 3.

The C-shaped sliding groove 4 is made of adaptive C-shaped steel profiles and is installed on the middle noise reduction plate structure 2; optionally on the metal frame of the two side noise reduction plate structures 1 and the middle noise reduction plate structure 2. And anti-falling seal plates are arranged at two ends of the C-shaped chute.

The alternative embodiment of the embodiment 1 can also be applied to the embodiment 2, and the push rod of the electric push rod or the pneumatic push rod 5 passes through the anti-falling sealing plate at one end of the C-shaped chute. The electric push rod or the pneumatic push rod 5 is pushed or recovered to open the top cover of the sound reduction cover.

The working principle of embodiment 2 is the same as that of embodiment 1.

Example 3:

as shown in FIGS. 3-1-3-10, a top cover of a meltable/openable sound reduction hood comprises an upper layer meltable/openable cover plate structure 1, a lower layer meltable/openable cover plate structure 2, a pulley guide rail mechanism 3, an anti-drop track 4 and an anti-lift hook 5.

The upper-layer fusible/openable cover plate structure 1 and the lower-layer fusible/openable cover plate structure 2 are located at different heights, the double-layer anti-drop track 4 is arranged at the upper part of the sound reduction cover top cover, the upper-layer fusible/openable cover plate structure 1 slides in the upper-layer anti-drop track 4, and the lower-layer fusible/openable cover plate structure 2 slides in the lower-layer anti-drop track 4.

Wherein, the upper layer of the meltable/openable cover plate structure 1 and the lower layer of the meltable/openable cover plate structure 2 comprise a metal frame and a noise reduction material arranged thereon. The metal frame material is a galvanized steel plate, the thickness t =2.0mm, and the thickness of a zinc layer is 60 g/square meter. The noise reduction material is a fusible noise reduction plate (the temperature inside the plate is 200-250 ℃ and the fusible noise reduction plate is fused), the fusible noise reduction plate is made of natural sand grains with specific meshes, the fusible noise reduction plate is a patent product of the applicant of the invention, the thickness t =20mm, and waterproof paint is sprayed on the surface of the fusible noise reduction plate.

The pulley guide rail mechanism 3 comprises a driving mechanism 6, a transmission device 7, a transmission shaft 8, a pulley 9 and a guide rail 10. The power output by the driving mechanism 6 drives the pulley 9 fixed on the transmission shaft 8 to rotate through the transmission device 7. The guide rail 10 is disposed in the anti-drop rail 4, and the upper layer fusible/openable cover structure 1 and the lower layer fusible/openable cover structure 2 slide on the guide rail 10.

Wherein the driving mechanism 6 and the transmission shaft 8 are connected to the metal frame sides of the upper and lower fusible/openable cover structures 1 and 2 through field common fittings. The central axis of the transmission shaft 8 is parallel to the long side of the sound reduction cover top cover, so that the upper fusible/openable cover plate structure 1 and the fusible/openable cover plate structure 2 are opened and closed to the left and right sides of the sound reduction cover top cover.

Wherein, the transmission device 7 can be a transmission chain or a transmission belt.

The anti-lifting hook 5 is made of a Q235 steel plate and is made by self-manufacturing, and the diameter of the anti-lifting hook is 5-8 mm.

The working principle is as follows:

to meet the installation requirements, the fusible/openable cover plate structure is arranged in the area without the support, the pipeline and the sleeve blocking on the top. The translation device is composed of a fusible/openable cover plate structure and an electric translation mechanism, and IN order to ensure that the middle part of the BOX-IN can be completely opened, the translation device IN the embodiment 3 is provided with an upper layer and a lower layer which are respectively moved. Can realize the effects of closing, half-opening and full-opening (figure 3-1-3-10).

When the BOX-IN top cover needs to be opened, an operator operates the electric switch below the BOX-IN, and the upper/lower layer fusible/openable cover plate structure slides on the anti-drop track 4 through the driving mechanism 6, so that automatic opening is realized. The anti-drop track 4 is provided with a limit switch to ensure that the translation device can only move within the travel range (fig. 3-8).

When the BOX-IN top cover needs to be closed, the driving mechanism 6 rotates reversely to drive the upper layer and the lower layer of fusible/openable cover plate structures to slide back on the anti-falling track 4, and the motor is automatically closed after the fusible/openable cover plate structures slide to the designated position. At this point, the device is fully closed (fig. 3-7).

Anticreep track 4 leads to long arranging, and slide rail 10 sets up inside anticreep track 4, prevents derail in the operation. In order to prevent the noise reduction plate from being turned over by strong wind, an anti-turning hook 5 is arranged below the upper/lower sliding fusible/openable cover plate structure, the anti-turning hook 5 keeps a certain gap with the channel steel at ordinary times to ensure that the translation mechanism can freely travel, and when the sliding fusible/openable cover plate structure is turned upwards in strong wind weather, the anti-turning hook 5 can be hooked on the channel steel, so that the sliding fusible/openable cover plate structure is limited to be turned upwards continuously (fig. 3-10).

Example 4:

4-1-4-8, a fusible/openable sound reduction hood top cap, comprising: a fusible/openable cover plate structure 1, a sliding guide rail structure 2 and a gear rack driving system 3.

The fusible/openable cover plate structure 1 is arranged at the opening of the sound reduction cover top cover and is used for sealing the opening of the sound reduction cover top cover.

Wherein the fusible/openable cover plate structure 1 comprises a metal frame and a noise reduction material disposed thereon. The metal frame material in the fusible/openable cover plate structure 1 is a galvanized steel plate, the thickness t =2.0mm, and the thickness of a zinc layer is 60 g/square meter. The noise reduction material in the fusible/openable cover plate structure 1 is a fusible noise reduction plate (the internal temperature of the plate is 200-250 ℃ and the plate is fused), the fusible noise reduction plate is made of natural sand grains with specific meshes, the fusible noise reduction plate is a patent product of the applicant of the invention, the thickness t of the plate is =20mm, and waterproof paint is sprayed on the surface of the plate.

The sliding guide rail structure 2 is a rolling linear guide sleeve pair, and the rolling linear guide sleeve pair comprises a guide rail shaft 4 and a linear motion type bearing 5. The guide rail shaft 4 is arranged at the upper part of the sound reduction cover top cover, and the linear motion type bearing 5 is arranged at the bottom surface of the fusible/openable cover plate structure 1. The friction coefficient of the sliding contact surface of the rolling linear guide sleeve pair is small, generally 0.002-0.005, and is only 1/20 of the sliding guide rail pair, so that power is saved, loads in the upper direction, the lower direction, the left direction and the right direction can be borne, and the difference between dynamic friction and static friction is small (fig. 4-5).

The gear rack driving system 3 comprises a driving mechanism, a driving gear 6 and a rack 7. The driving mechanism outputs power through the driving gear 6, the rack 7 is arranged on the bottom surface of the fusible/openable cover plate structure 1, and the driving gear 6 is meshed with the rack 7. The driving mechanism is arranged on the metal frame of the sound reduction cover stapling cover.

Alternatively, in order to ensure that the top fusible/openable cover structure can be smoothly opened and closed in the power failure state, a manual opening and closing device is specially arranged. And a steel wire rope 8 is arranged on the metal frame of the fusible/openable cover plate structure 1. The steel wire rope 8 is connected with the fusible/openable cover plate structure 1, sequentially passes through the sound reduction cover top cover and the pulley 9 arranged on the fireproof wall, and is connected to the winch on the fireproof wall.

The number of the steel wire ropes 8 can be two, each steel wire rope is connected with the fusible/openable cover plate structure 1, one steel wire rope 8 is responsible for opening the fusible/openable cover plate structure 1, and the other steel wire rope (not shown) is responsible for closing the fusible/openable cover plate structure 1.

Wherein the winch may be a manual winch.

Furthermore, the driving mechanism is connected with the driving gear 6 through a clutch, the clutch is sucked in a charged state, the driving mechanism and the driving gear 6 are connected into a whole, and the driving gear cannot be driven to rotate in a manual mode and only can be driven electrically; under the power failure or power loss state, the clutch is released, so that the driving mechanism is separated from the driving gear 6, the driving gear 6 can rotate freely, and the fusible/openable cover plate structure 1 can be pushed to move manually.

The working principle is as follows:

to meet the installation requirements, the fusible/openable cover plate structure is arranged in the area without the support, the pipeline and the sleeve blocking on the top. The top fusible/openable cover structure of the sound reduction cover stapling cover is divided into 4 independently movable parts (fig. 4-2, fig. 4-4). The driving mechanism rotates forwards and backwards to drive the gear and further drive the fusible/openable cover plate structure to move forwards and backwards, so that the opening and closing targets are achieved (fig. 4-6).

The motor is connected with the gear through the clutch, and the clutch is closed in a powered state; under the power failure or power loss state, the clutch is loosened, and the structure of the fusible/openable cover plate which can be opened and closed manually can be realized.

The top module has a calculated actuation force of 187.5N (i.e., 18.75kg of push), and an adult can easily push the module to move. For convenience of operation, a winch is arranged on the firewall (1.3 m from the ground), and the winch realizes opening and closing of the fusible/openable cover plate structure through a steel wire rope (figures 4-7 and 4-8).

The above examples are only specific illustrations of possible embodiments of the present invention, and are not intended to limit the scope of the present invention. Meanwhile, the technical means which can separately realize a certain technical function in each embodiment can be applied to other embodiments by translation or slight adjustment, for example, the sealing brush which realizes the sealing function in embodiment 1 is not only applicable to embodiment 1, but also can be arranged in other embodiments by those skilled in the art. The present invention is not limited to the above embodiments, but may be modified or modified in various ways without departing from the scope of the invention. The invention belongs to the protection object of the patent as long as the invention relates to the core inventive concept of the invention and one of the technical means for realizing the inventive concept.