An exhaust silencing device for an oxygen concentrator

Abstract

The utility model discloses an exhaust silencing device for an oxygen concentrator, comprising an oxygen concentrator device, wherein a cavity is provided inside the oxygen concentrator device, and an exhaust pipe is installed inside the cavity. The utility model relates to the technical field of noise reduction of oxygen concentrators; the exhaust silencing device for the oxygen concentrator drives a toothed plate and a trapezoidal block to slide in the inner wall of a trapezoidal groove through the movable end of an electric push rod, and the toothed plate drives a rack, a small gear meshing with the rack and a connecting shaft to rotate, so that the noise generated during exhaust can be reduced to a greater extent, and when the wind force is weak, the silencing component can be adjusted to avoid affecting the exhaust of wind, so that the wind can pass smoothly, and the normal operation of the oxygen concentrator device can be prevented from being affected. When the exhaust speed is fast, the electric push rod drives the toothed plate and the connecting shaft to rotate, and drives the rotating shaft and the shielding plate to rotate at 90 degrees with the exhaust pipe, so that the wind noise generated by excessive wind speed can be reduced, and the normal air outlet state can also be maintained at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of noise reduction of oxygen concentrators, in particular to an exhaust silencing device for oxygen concentrators. Background Art

[0002] Oxygen generator is a type of machine that produces oxygen. Its principle is to use air separation technology. First, the air is compressed at a high density, and then the different condensation points of the components in the air are used to separate the gas and liquid at a certain temperature. Then, it is distilled to separate it into oxygen and nitrogen. In general, since it is mostly used to produce oxygen, people are accustomed to calling it an oxygen generator. Since oxygen and nitrogen have a wide range of uses, oxygen generators are also widely used in the national economy, especially in metallurgy, chemical industry, petroleum, national defense and other industries.

[0003] The patent with patent number CN202321784833.2 discloses an exhaust silencing device for an oxygen concentrator, comprising an oxygen concentrator body, a base is provided at the bottom of the oxygen concentrator body, an oxygen outlet pipe is provided at the top, an exhaust groove is provided on one side of the oxygen concentrator body, and an air inlet is provided on the other side, two oxygen cylinders arranged in parallel are provided in the oxygen concentrator body, an oxygen outlet is provided at the top of the oxygen cylinder, and an exhaust pipe is provided at the bottom, a silencer assembly is provided on the exhaust pipe, and an open exhaust hood is provided at the end of the exhaust pipe; the exhaust silencing device for the oxygen concentrator can greatly eliminate the exhaust noise through the wind collecting hood and the silencer assembly, and can also avoid the whistling sound caused by the rapid discharge of airflow, and the overall silencer effect is significant, meeting the exhaust silencing requirements.

[0004] There are certain deficiencies in the use of the above-mentioned device: the above-mentioned device can greatly eliminate the exhaust noise through the exhaust silencer of the oxygen concentrator through the wind collecting hood and the silencer assembly, and can also avoid the whistling sound caused by the rapid discharge of the airflow. However, when the exhaust airflow is large, the above-mentioned device has a good silencer effect, but when the exhaust airflow is general, it will cause the exhaust speed to be slow and affect the oxygen production work of the oxygen concentrator body.

[0005] To this end, the utility model provides an exhaust silencer for an oxygen concentrator to solve the above problems. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides an exhaust silencer for an oxygen concentrator, which solves the above problems.

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: an exhaust silencing device for an oxygen concentrator, comprising an oxygen concentrator device, a cavity is opened inside the oxygen concentrator device, an exhaust pipe is installed inside the cavity, a silencing component is installed on the outer wall of the exhaust pipe, and the four corners of the top wall of the exhaust pipe are fixedly connected with a fixing component;

[0008] The silencer assembly includes a mounting seat, a trapezoidal groove is provided on the front wall of the mounting seat, a trapezoidal block is slidably installed on the inner wall of the trapezoidal groove, a tooth plate is fixedly connected to the front wall of the trapezoidal block, a rack is fixedly connected to the front wall of the tooth plate, an electric push rod is fixedly connected to the right wall of the mounting seat, sound insulation boards are fixedly connected to the front and rear parts of the inner wall of the exhaust duct, silencer grooves are provided on the inner walls of the sound insulation boards, a number of shielding plates are evenly installed on the middle part of the inner wall of the exhaust duct through a rotating shaft, ventilation holes are provided on the side walls of the shielding plates, the top end of the rotating shaft is fixedly connected to a connecting shaft through a bearing penetrating the exhaust duct, a pinion is fixedly connected to the outer wall of the connecting shaft, a number of right exhaust hoods are fixedly connected to the right side of the inner wall of the sound insulation board, a number of left exhaust hoods are fixedly connected to the left side of the inner wall of the sound insulation board, a vacuum chamber is provided inside the exhaust duct, and sound insulation cotton is fixedly connected to the front and rear walls of the exhaust duct.

[0009] Through the above technical solution, the setting of the silencer component can control the exhaust wind speed and reduce the impact of wind noise.

[0010] Furthermore, the bottom wall of the mounting seat is fixedly connected to the top wall of the exhaust pipe, and the mounting seat is in an "L" shape.

[0011] Through the above technical solution, the mounting seat is mainly used for mounting various components on the upper part of the silencer assembly.

[0012] Furthermore, the movable end of the electric push rod slides through the mounting seat and is fixedly connected to the right wall of the toothed plate, and the shielding plate is circular.

[0013] Through the above technical solution, the extension and retraction of the movable end of the electric push rod drives the tooth plate to move forward and backward.

[0014] Furthermore, the pinions are all meshedly connected with the racks, and the front portion of the right wall of the exhaust duct is connected to an exhaust head.

[0015] Through the above technical solution, the toothed plate drives the rack and the pinion meshing therewith to rotate when moving.

[0016] Furthermore, the fixing assembly includes a support rod, the bottom end of the support rod is fixedly connected to the top wall of the exhaust pipe, and the top end of the support rod is fixedly connected to a connecting seat.

[0017] Through the above technical solution, the support rod is mainly used to install the entire silencer assembly in the internal cavity of the oxygen concentrator equipment.

[0018] Furthermore, a plurality of bolts are threadedly installed on the bottom wall of the connecting seat, and the left end of the exhaust pipe is connected to the air outlet cover.

[0019] Through the above technical solution, the bolts and the connecting seat cooperate with each other, which makes installation more convenient.

[0020] Furthermore, a movable seat is fixedly connected to the bottom wall of the oxygen generator equipment, and universal wheels are rotatably installed at the four corners of the bottom wall of the movable seat.

[0021] Through the above technical solution, the cooperation between the movable seat and the universal wheel can facilitate the movement of the oxygen generator equipment.

[0022] Beneficial Effects

[0023] The utility model provides an exhaust silencing device for an oxygen concentrator. Compared with the prior art, the utility model has the following beneficial effects:

[0024] (1) The exhaust silencer device for the oxygen concentrator drives the toothed plate and the trapezoidal block to slide in the inner wall of the trapezoidal groove through the movable end of the electric push rod, and the toothed plate drives the rack, the small gear meshing therewith and the connecting shaft to rotate, and the connecting shaft drives the rotating shaft and the shielding plate to rotate 180 degrees with the exhaust pipe. When exhausting air, it passes through the right exhaust hood, the sound insulation board, the silencer groove and the left exhaust hood and is discharged from the air outlet hood, so that the wind can smoothly pass through the inside of the exhaust pipe and through the mutual cooperation between the sound insulation board, the silencer groove, the vacuum chamber and the sound insulation cotton, the noise generated during exhaust can be reduced to a greater extent, and when the wind force is weak, The silencer assembly can also be adjusted to avoid affecting the discharge of wind, so that the wind can pass smoothly and prevent the normal operation of the oxygen generator equipment from being affected. When the discharge speed is faster, the electric push rod drives the toothed plate and the trapezoidal block to slide in the inner wall of the trapezoidal groove, and the toothed plate drives the rack, the pinion meshing therewith and the connecting shaft to rotate. When the connecting shaft rotates, it drives the rotating shaft and the baffle to rotate at 90 degrees with the exhaust pipe, which can reduce the wind noise caused by excessive wind speed and maintain a normal air outlet state. The entire device is installed in the inner cavity of the oxygen generator equipment through the cooperation of the support rod, the connecting seat and the bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional diagram of the external structure of the oxygen concentrator equipment of the utility model;

[0026] Figure 2 This is a front view of the internal structure of the silencer assembly of the utility model;

[0027] Figure 3 It is an exploded view of the external structure of the silencer assembly of the utility model;

[0028] Figure 4 It is a right view of the external structure of the muffler assembly of the utility model;

[0029] Figure 5 It is a left view of the external effect of the silencer component of the utility model.

[0030] In the figure, 1. exhaust duct; 2. silencer assembly; 21. mounting base; 22. trapezoidal groove; 23. electric push rod; 24. tooth plate; 25. rack; 26. pinion; 27. connecting shaft; 28. rotating shaft; 29. ​​shielding plate; 210. vent; 211. vacuum chamber; 212. right exhaust hood; 213. sound insulation board; 214. silencer groove; 215. left exhaust hood; 216. sound insulation cotton; 217. trapezoidal block; 3. fixing assembly; 31. support rod; 32. connecting base; 33. bolt; 4. air outlet hood; 5. oxygen generator equipment; 6. moving base; 7. universal wheel. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Embodiment 1:

[0033] See also Figure 1-5 , an exhaust silencing device for an oxygen concentrator, comprising an oxygen concentrator device 5, a cavity is provided inside the oxygen concentrator device 5, an exhaust pipe 1 is installed inside the cavity, a silencing component 2 is installed on the outer wall of the exhaust pipe 1, and a fixing component 3 is fixedly connected to the four corners of the top wall of the exhaust pipe 1;

[0034] The silencer assembly 2 includes a mounting seat 21, a trapezoidal groove 22 is provided on the front wall of the mounting seat 21, a trapezoidal block 217 is slidably installed on the inner wall of the trapezoidal groove 22, a tooth plate 24 is fixedly connected to the front wall of the trapezoidal block 217, a rack 25 is fixedly connected to the front wall of the tooth plate 24, an electric push rod 23 is fixedly connected to the right wall of the mounting seat 21, a sound insulation board 213 is fixedly connected to the front and rear parts of the inner wall of the exhaust duct 1, a sound insulation board 213 is provided on the inner wall of the sound insulation board 213, and a sound insulation groove 214 is evenly installed in the middle of the inner wall of the exhaust duct 1 through a rotating shaft 28. A plurality of baffles 29, each of which has a vent 210 on its side wall, the top of the rotating shaft 28 passes through the exhaust pipe 1 through a bearing and is fixedly connected to a connecting shaft 27, the outer wall of the connecting shaft 27 is fixedly connected to a pinion gear 26, a plurality of right exhaust hoods 212 are fixedly connected to the right side of the inner wall of the soundproofing plate 213, a plurality of left exhaust hoods 215 are fixedly connected to the left side of the inner wall of the soundproofing plate 213, a vacuum chamber 211 is opened inside the exhaust pipe 1, and sound insulation cotton 216 is fixedly connected to the front and rear walls of the exhaust pipe 1;

[0035] In the embodiment of the utility model, the purpose of this arrangement is that the silencer assembly 2 is arranged so that, through the rotation of the baffle plate 29, when the wind speed is relatively slow, the baffle plate 29 rotates 180 degrees with the exhaust duct 1 to facilitate the smooth passage of wind. When the wind speed inside the exhaust duct 1 is too fast, the baffle plate 29 rotates 90 degrees with the exhaust duct 1, and the wind will be discharged from the vent 210, which can reduce the wind noise caused by the excessive wind speed. Through the mutual cooperation between the sound insulation board 213, the silencer groove 214, the vacuum chamber 211 and the sound insulation cotton 216, the noise problem generated during exhaust can be reduced.

[0036] Embodiment 2:

[0037] See also Figure 1-5 , this embodiment provides a technical solution based on the first embodiment: the bottom wall of the mounting seat 21 is fixedly connected to the top wall of the exhaust pipe 1, the mounting seat 21 is "L"-shaped, the movable end of the electric push rod 23 slides through the mounting seat 21 and is fixedly connected to the right wall of the toothed plate 24, the shielding plate 29 is circular, the pinion 26 is meshed with the rack 25, the front part of the right wall of the exhaust pipe 1 is connected with an exhaust head, the fixing assembly 3 includes a support rod 31, the bottom end of the support rod 31 is fixedly connected to the top wall of the exhaust pipe 1, the top of the support rod 31 is fixedly connected with a connecting seat 32, the bottom wall of the connecting seat 32 is screwed with a plurality of bolts 33, the left end of the exhaust pipe 1 is connected with the air outlet hood 4, the bottom wall of the oxygen generator equipment 5 is fixedly connected with a movable seat 6, and the four corners of the bottom wall of the movable seat 6 are rotatably installed with universal wheels 7;

[0038] In the embodiment of the utility model, the purpose of this arrangement is that the setting of the fixing component 3 is mainly used to install the silencer component 2 in the cavity inside the oxygen concentrator equipment 5, and the oxygen concentrator equipment 5 can facilitate the movement of the entire device through the cooperation of the moving seat 6 and the universal wheel 7.

[0039] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0040] During operation, first connect the control panel of the oxygen concentrator device 5 to the electric push rod 23. When the oxygen concentrator device 5 starts to work and exhaust air, when the wind force is weak, the electric push rod 23 is controlled by operating the control panel of the oxygen concentrator device 5. The movable end of the electric push rod 23 drives the tooth plate 24 to start linear movement. When the tooth plate 24 moves, it drives the trapezoidal block 217 to slide in the inner wall of the trapezoidal groove 22. The tooth plate 24 drives the rack 25 to move at the same time. When the rack 25 moves, it drives the pinion 26 and the connecting shaft 27 meshing therewith to rotate. When the connecting shaft 27 rotates, it drives the rotating shaft 28 and the baffle plate 29 to rotate 180 degrees with the exhaust pipe 1. When exhausting air, it passes through the right exhaust hood 212, the sound insulation board 213, the silencer groove 214 and the left exhaust hood 215 and is discharged from the air outlet hood 4, so that the wind can smoothly pass through the exhaust pipe 1 and Through the mutual cooperation between the sound insulation board 213, the silencer groove 214, the vacuum chamber 211 and the sound insulation cotton 216, the noise generated during exhaust can be reduced to a greater extent, and when the wind force is weak, the silencer component 2 can also be adjusted to avoid affecting the exhaust of wind. When the exhaust speed is faster, the movable end of the electric push rod 23 drives the tooth plate 24 to start linear movement. When the tooth plate 24 moves, it drives the trapezoidal block 217 to slide in the inner wall of the trapezoidal groove 22. The tooth plate 24 also drives the rack 25 to move. When the rack 25 moves, it drives the pinion 26 and the connecting shaft 27 engaged therewith to rotate. When the connecting shaft 27 rotates, it drives the rotating shaft 28 and the baffle plate 29 to rotate at 90 degrees with the exhaust pipe 1. The entire device is installed in the inner cavity of the oxygen generator equipment 5 through the mutual cooperation of the support rod 31, the connecting seat 32, and the bolt 33.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] 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. An exhaust silencing device for an oxygen concentrator, comprising an oxygen concentrator device (5), characterized in that: The oxygen concentrator device (5) has a cavity inside, an exhaust pipe (1) is installed inside the cavity, a silencer component (2) is installed on the outer wall of the exhaust pipe (1), and the four corners of the top wall of the exhaust pipe (1) are fixedly connected with fixing components (3); The silencer assembly (2) comprises a mounting seat (21), a trapezoidal groove (22) is provided on the front wall of the mounting seat (21), a trapezoidal block (217) is slidably installed on the inner wall of the trapezoidal groove (22), a tooth plate (24) is fixedly connected to the front wall of the trapezoidal block (217), a rack (25) is fixedly connected to the front wall of the tooth plate (24), an electric push rod (23) is fixedly connected to the right side wall of the mounting seat (21), a sound insulation board (213) is fixedly connected to the front and rear parts of the inner wall of the exhaust pipe (1), a sound insulation board (213) is provided on the inner wall of the sound insulation board (213), and a silencer groove (214) is provided on the middle part of the inner wall of the exhaust pipe (1) through a rotating shaft (28). A plurality of shielding plates (29) are evenly installed, and the side walls of the shielding plates (29) are all provided with ventilation holes (210). The top end of the rotating shaft (28) passes through the exhaust pipe (1) through a bearing and is fixedly connected to a connecting shaft (27). The outer wall of the connecting shaft (27) is fixedly connected to a pinion gear (26). The right side of the inner wall of the sound insulation plate (213) is fixedly connected to a plurality of right exhaust hoods (212), and the left side of the inner wall of the sound insulation plate (213) is fixedly connected to a plurality of left exhaust hoods (215). A vacuum chamber (211) is provided inside the exhaust pipe (1), and the front and rear walls of the exhaust pipe (1) are fixedly connected to sound insulation cotton (216).

2. The exhaust silencing device for an oxygen concentrator according to claim 1, characterized in that: The bottom wall of the mounting seat (21) is fixedly connected to the top wall of the exhaust pipe (1), and the mounting seat (21) is in an "L" shape.

3. The exhaust silencing device for an oxygen concentrator according to claim 1, characterized in that: The movable end of the electric push rod (23) slides through the mounting seat (21) and is fixedly connected to the right wall of the toothed plate (24), and the shielding plate (29) is circular.

4. The exhaust silencing device for an oxygen concentrator according to claim 1, characterized in that: The pinions (26) are meshedly connected with the racks (25), and the front portion of the right wall of the exhaust pipe (1) is connected to an exhaust head.

5. The exhaust silencing device for an oxygen concentrator according to claim 1, characterized in that: The fixing assembly (3) comprises a support rod (31), the bottom end of the support rod (31) is fixedly connected to the top wall of the exhaust pipe (1), and the top end of the support rod (31) is fixedly connected to a connecting seat (32).

6. The exhaust silencing device for an oxygen concentrator according to claim 5, characterized in that: A plurality of bolts (33) are threadedly mounted on the bottom wall of the connection seat (32), and the left end of the exhaust pipe (1) is connected to the air outlet cover (4).

7. The exhaust silencing device for an oxygen concentrator according to claim 1, characterized in that: The bottom wall of the oxygen generator equipment (5) is fixedly connected to a movable seat (6), and universal wheels (7) are rotatably mounted on the four corners of the bottom wall of the movable seat (6).

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