Noise reduction device of fresh air system
Technical Field
The utility model relates to a technical field of making an uproar specifically is a device of making an uproar falls in new trend system.
Background
The fresh air system is a set of independent air processing system consisting of an air supply system and an air exhaust system and can be divided into a pipeline type fresh air system and a pipeline-free fresh air system; the system is characterized in that fresh air is sent to the interior of a closed interior by using special equipment at one side of the interior and then is discharged to the exterior from the other side by using the special equipment, so that a fresh air flowing field can be formed indoors, and the requirement of fresh air ventilation in the interior is met;
at present, indoor air is generally purified by installing a fresh air system, and a pipeline type is generally installed in a larger place to carry out multilayer air supply; when the air inlet and outlet fan works, outdoor fresh air can be sucked into the room, and indoor old air is discharged out of the room; because its delivery capacity is great, work messenger can have the noise to the wind speed is too fast and also can send the noise in pipeline inner wall friction, and the transmission always with the wind, consequently, design a new trend system noise reduction device now.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a device of making an uproar falls in new trend system to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a noise reduction device for a fresh air system, comprising:
a main body block;
the four groups of same locking structures are movably arranged in the main body block respectively, are positioned on the central line and are symmetrical with each other and are positioned in the front side wall;
four groups of same supporting and noise reducing structures which are respectively and movably arranged on the upper, lower, left and right side walls of the main body block and are respectively positioned at the central part;
the latch structure includes: a clamping rod and a first spring;
the main body block is of a rectangular structure, mounting grooves are formed in the center line of the front wall of the main body block, the upper side, the lower side, the left side and the right side of the center line of the front wall of the main body block are respectively positioned at the center part and are symmetrical to each other, through holes communicated with the mounting grooves are formed in the center parts of the upper side wall and the lower side wall of the main body block and the center parts of the left side wall and the right side wall of the main body block, the clamping rod is movably embedded in the mounting groove of the front side wall of the main body block, one end of the.
Preferably, the support noise reduction structure includes: the damping device comprises a first limiting block, an outer pipe, an inner rod, a second spring, a second limiting block, a fixing plate and a silencing plate;
the first limiting block is fixedly welded on the upper wall of the main body block and located at the center, one end of the outer tube is movably arranged in the first limiting block through a pin shaft, a clamping hole is formed in the center of the lower wall of the outer tube, one end of the inner rod is movably inserted into the other end of the outer tube, the second spring is movably embedded into the outer tube and located between the lower wall of the outer tube and one end of the inner rod, the second limiting block is movably arranged at the other end of the inner rod through a pin shaft, the fixing plate is fixedly welded on the second lower block and is perpendicular to the inner rod, mounting holes are formed in the four corners of the fixing plate, and the silencing plate is arranged on the fixing plate through bolts.
Preferably, first stopper and second stopper are concave structure, and its lateral wall all with the main part piece antetheca in same direction.
Preferably, the inner rod is of a T-shaped structure.
Preferably, the outer tube may have an end clamping hole formed at one end thereof to be fitted to one end of the clamping rod.
Preferably, the clamping rod is of a T-shaped structure.
Compared with the prior art, the beneficial effects of the utility model are that: according to the noise reduction device for the fresh air system, the noise reduction plates are fixed on a fixing plate in a support noise reduction structure through bolts for limiting according to pipelines with different sizes, then the outer pipe is turned over, the noise reduction plates on four sides are attached to the inner wall of the pipeline, the inner rod at the top end is held by one hand, the main body block is pushed by the other hand, the inner rod is stressed to shrink towards the inner pipe, and after the noise reduction device is limited through the first limiting block and the second limiting block, one end of the clamping rod is clamped into the clamping hole at the bottom end of the outer pipe for limiting through the action of the first spring, the inner rod is perpendicular to the inner side wall of the pipeline through the action of the second spring, and; the design structure is simple, the installation and the disassembly are convenient, the pipeline installation is suitable for the pipeline installation with different sizes, the cost is lower, and the secondary utilization can be realized.
Drawings
Fig. 1 is a schematic view of an assembly structure of the present invention;
fig. 2 is a schematic diagram of a partially enlarged structure a of the present invention.
In the figure: 1. the main body block 2, the locking structure 21, the clamping rod 22, the first spring 3, the support noise reduction structure 31, the first limiting block 32, the outer pipe 33, the inner rod 34, the second spring 35, the second limiting block 36, the fixing plate 37 and the noise reduction plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a noise reduction device for a fresh air system, comprising: a main body block 1; four groups of same locking structures 2 which are respectively and movably arranged in the main body block 1, are respectively positioned on the central line and are mutually symmetrical and are positioned in the front side wall; four groups of same supporting and noise-reducing structures 3 which are respectively and movably arranged on the upper, lower, left and right side walls of the main body block 1 and are respectively positioned at the central part; the latch structure 2 includes: a lock lever 21 and a first spring 22; the main body block 1 is of a rectangular structure, mounting grooves are formed in the center line of the front wall of the main body block, the upper side, the lower side, the left side and the right side of the center part of the front wall of the main body block are respectively symmetrical, through holes communicated with the mounting grooves are formed in the center parts of the upper side wall and the lower side wall of the main body block 1 and the center parts of the left side wall and the right side wall of the main body block, the clamping rod 21 is movably embedded in the mounting groove of the front side wall of the main body block 1, one end of the clamping rod movably penetrates through the through; can spacing fixed through kayser structure 2 division.
The following components are provided according to the scheme:
acoustical panel: it is a sound-absorbing cotton plate-shaped structure made of polyester fibers.
Preferably, the supporting and sound-attenuating structure 3 further comprises: a first stopper 31, an outer tube 32, an inner rod 33, a second spring 34, a second stopper 35, a fixing plate 36 and a sound-absorbing plate 37;
the first limiting block 31 is fixedly welded on the upper wall of the main body block 1 and is located at the central position, one end of the outer tube 32 is movably arranged in the first limiting block 31 through a pin shaft, a clamping hole is formed in the central position of the lower wall of the outer tube, one end of the inner rod 33 is movably inserted into the other end of the outer tube 32, the second spring 34 is movably embedded in the outer tube 32 and is located between the lower wall of the outer tube 32 and one end of the inner rod 33, the second limiting block 35 is movably arranged at the other end of the inner rod 33 through a pin shaft, the fixing plate 36 is fixedly welded on the second lower block and is perpendicular to the inner rod 33, mounting holes are formed in the four corners of the fixing plate, and the silencing plate 37 is arranged on.
As preferred scheme, further, first stopper 31 and second stopper 35 are concave structure, and its lateral wall all is in same direction with main part piece 1 antetheca for the design demand, it is spacing to be convenient for install.
Preferably, the inner rod 33 is a T-shaped structure, so as to be convenient for the second spring 34 to be assisted by.
Preferably, the outer tube 32 may have an end hole formed at one end thereof to be fitted to an end of the fastening rod 21 for design and installation.
Preferably, the locking rod 21 is of a T-shaped structure, so that the locking is limited conveniently.
The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.
Example (b): as can be seen from fig. 1-2 of the specification, firstly, according to the pipes with different sizes, the sound-absorbing board 37 is fixed on the fixing board 36 in the support sound-absorbing structure 3 through bolts for limiting, and then the outer pipe 32 is turned over, the sound-absorbing boards 37 on four sides are all attached to the inner wall of the pipe, and then one hand grips the inner rod 33 at the top end, the other hand pushes the main body block 1, so that the inner rod 33 is stressed to contract inwards the outer pipe 32 and turn over along with the outer pipe 32, and then the first limiting block 31 and the second limiting block 35 can limit to form a cross-shaped support, with the aid of the acting force of the first spring 22, one end of the clamping rod 21 in the clamping structure 2 is clamped in the clamping hole at the bottom end of the outer pipe 32 for limiting, and with the aid of the acting force of the second spring 34.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation; meanwhile, unless explicitly specified or limited otherwise, the terms "fixedly welded", "movably mounted", "movably inserted", "movably embedded", and "opened" should be understood in a broad sense, for example, they may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.