An oxygen concentrator with a built-in silencer cover

Abstract

The present invention discloses an oxygen concentrator with a built-in silencer cover, which belongs to the technical field of oxygen concentrators. An oxygen concentrator with a built-in silencer cover includes a device body, four corners of the lower end of the device body are connected to sliding wheels, and the lower surface of the front end of the device body is connected to a fixing component, the upper part of the fixing component is connected to a sealing block, and the upper side of the sealing block is connected to a first-level filter. When one end of the fixing plate contacts the inner cavity of the device body, the sound insulation cavity and the support block of the molecular sieve can accurately coincide with the U-shaped groove. At the same time, the first return spring extends and pushes the telescopic fixing plate to coincide with the second fixing groove, effectively fixing the internal components of the device and keeping their position unchanged. This fixing method facilitates the replacement of the silencer bottom plate through the third sliding groove, greatly reducing the difficulty of replacement and improving the replacement efficiency, thereby ensuring that the oxygen concentrator can quickly resume normal operation, improving work efficiency and enhancing user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of oxygen concentrators, and more particularly to an oxygen concentrator with a silencer cover. Background Art

[0002] With the increasing demand for health among the people, oxygen concentrators have been widely used in many fields such as home healthcare and oxygen supplementation in plateau areas. Since there is no silencer cover installed in the oxygen concentrator, the air compressor and molecular sieve will generate noise during the operation of the oxygen concentrator. If the oxygen concentrator is used in a family room, the noise will be very obvious, thus interfering with some users who need to use the oxygen concentrator for recuperation in a relatively quiet environment.

[0003] To address this issue, although some oxygen concentrators currently have silencer covers installed internally, the silencer covers may experience reduced or even ineffective silencing effects due to material aging or physical damage during long-term use. Therefore, it is necessary to replace the detachable silencer cover. However, during the replacement of the silencer cover, the silencer base plate located at the bottom of the inner cavity of the device body is difficult to replace. Components in the oxygen concentrator need to be disassembled and removed before the silencer base plate can be replaced. This makes the replacement steps of the silencer base plate cumbersome, resulting in low efficiency in replacing the silencer cover, thereby reducing the working efficiency of the oxygen concentrator. Summary of the Invention

[0004] The object of the present invention is to provide an oxygen concentrator with a built-in silencer cover to solve the problems raised in the above background technology.

[0005] An oxygen concentrator with a built-in silencer cover comprises a device body, wherein the four corners of the lower end of the device body are connected to sliding wheels, and the lower surface of the front end of the device body is connected to a fixing component, the upper part of the fixing component is connected to a sealing block, the upper side of the sealing block is connected to a primary filter, and the inner cavity of the device body is connected to a silencer component, the upper two sides of the silencer component are connected to connecting components, the inner cavity of the silencer component is connected to a rectangular support plate, the upper end surface of the rectangular support plate is connected to an air compressor, and the air compressor One end of the machine is connected to a molecular sieve, and the outer surface of the air compressor is connected to a sound insulation cavity, and the inner cavity of the sound insulation cavity is connected to a radiator, and the outer surface of the sound insulation cavity is connected to a first rectangular support block, the outer surface of the lower end of the molecular sieve is connected to a second rectangular support block, the lower end of the molecular sieve is connected to a battery valve, one end of the primary filter is connected to a first air pipe, the end of the first air pipe away from the primary filter is connected to a secondary filter, and the end of the secondary filter away from the first air pipe is connected to a second air pipe, and the second air pipe is connected to the inner cavity of the silencer assembly;

[0006] The fixing assembly includes a fixing plate, and a plurality of U-shaped grooves are provided on the surface of one end of the fixing plate facing the inner cavity of the device body, and a first rectangular slide is provided on the side surfaces of both ends of the fixing plate, a telescopic fixing plate is connected in the inner cavity of the first rectangular slide, a plurality of first circular holes are provided on the surface of the telescopic fixing plate, a first circular guide rod is connected in the inner cavity of each first circular hole, a first return spring is sleeved on the surface of one end of the circular guide rod away from the telescopic fixing plate, and the U-shaped grooves are respectively matched with the first rectangular support block connected to the outer surface of the sound insulation cavity and the second rectangular support block connected to the outer surface of the lower end of the molecular sieve.

[0007] Preferably, the upper end of the device body is connected to a device cover, a flow meter is connected to the front side surface of the device cover, an oxygen outlet pipe is connected to the end of the front end surface of the device cover away from the flow meter, a humidifier is connected to the end of the oxygen outlet pipe away from the device cover, and the flow meter displays the concentration of oxygen stored in the molecular sieve. The oxygen outlet pipe is connected to the molecular sieve.

[0008] Preferably, the silencer assembly includes a silencer top plate, the lower end surface of the silencer top plate is connected to a first sealing block, both ends of the first sealing block are provided with a first circular connecting hole, and the lower end of the silencer top plate is connected to a silencer frame, the upper end surface of the silencer frame is provided with a first sealing groove, and both ends of the upper end surface of the silencer frame are provided with a second circular connecting hole, and the first circular connecting hole corresponds to the second circular connecting hole, the silencer top plate is connected to the lower end of the device cover, and second circular holes are provided on both sides of both ends of the silencer top plate, and the device cover is connected to the silencer top plate by fixing bolts passing through the second circular holes.

[0009] Preferably, the lower end of the sound-absorbing frame is connected to a second sealing block, and the lower end of the sound-absorbing frame is connected to a sound-absorbing bottom plate, and the upper end surface of the sound-absorbing bottom plate is connected to a second sealing groove.

[0010] Preferably, the first sealing block fits with the first sealing groove, and the second sealing block fits with the second sealing groove. By overlapping the first sealing block with the first sealing groove, and overlapping the second sealing block with the second sealing groove, the silencer top plate, the silencer frame and the silencer bottom plate form a silencer cover.

[0011] Preferably, the connecting component includes a button, and the end of the button facing the device body is connected to a second rectangular connecting block, both ends of the second rectangular connecting block are connected to circular sealing blocks, and the end of the button away from the second rectangular connecting block is connected to a fixing block, and the material of the circular sealing block is the same as that of the silencer cover. When the circular sealing block passes through the first circular connecting hole and the second circular connecting hole, the silencer top plate and the silencer frame are fixed together.

[0012] Preferably, the upper end of the fixed block is connected to a triangular fixed block, the upper end of the triangular fixed block is connected to a third rectangular connecting block, the end of the third rectangular connecting block facing the circular sealing block is connected to a rectangular sliding block, a threaded rod is connected to the inner cavity of the rectangular sliding block, the end of the threaded rod away from the rectangular sliding block is connected to a knob, and a first sliding groove is provided at the upper end of the inner cavity of the device body, and the second rectangular connecting block is installed in the inner cavity of the first sliding groove, and a second sliding groove is provided at the lower end of the first sliding groove, and the rectangular sliding block is installed in the inner cavity of the second sliding groove, and the threaded rod is connected to the knob by passing through the outer surface of the device body.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] 1. In the present invention, when one end of the fixing plate contacts the inner cavity of the device body, the support block of the sound insulation cavity and the molecular sieve can accurately coincide with the U-shaped groove. At the same time, the first return spring extends and pushes the telescopic fixing plate to coincide with the second fixing groove, effectively fixing the internal components of the device and keeping their positions unchanged. This fixing method facilitates the replacement of the silencer bottom plate through the third sliding groove, greatly reducing the difficulty of replacement and improving the replacement efficiency, thereby ensuring that the oxygen concentrator can quickly resume normal operation, improving work efficiency and enhancing user experience.

[0015] 2. In the present invention, a circular sealing block is used to pass through the connecting hole to fix the silencer top plate and the silencer frame through the connecting assembly. The triangular fixing block cooperates with the third rectangular connecting block to replace the traditional fixing bolts. Moreover, the material of the circular sealing block is the same as that of the silencer cover, which will not affect the overall sound insulation performance, ensuring that while achieving a stable connection, the silencer cover maintains a good sound insulation effect, improves the sound insulation efficiency, and creates a quiet use environment for users.

[0016] 3. In the present invention, a sliding wheel is provided at the lower end of the device body to facilitate the movement of the oxygen concentrator to meet the needs of use in different scenarios. The device cover and the silencer top plate are connected by fixing bolts, which are convenient for disassembly and installation, and convenient for inspection and maintenance of internal components. The design of the connecting assembly and the fixing assembly also makes the replacement and adjustment of the silencer cover and internal components simpler and faster, reducing maintenance costs and difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a partial structural schematic diagram of the present invention;

[0019] Figure 3 Schematic diagram of the internal structure of the present invention;

[0020] Figure 4Schematic diagram of the internal structure of the device body of the present invention;

[0021] Figure 5 It is a schematic diagram of the structure of the fixing assembly of the present invention;

[0022] Figure 6 This is a schematic structural diagram of the muffler assembly of the present invention;

[0023] Figure 7 Schematic diagram of the connection assembly structure of the present invention.

[0024] Explanation of reference numerals in the figure: 1. device body; 2. sliding wheel; 3. device cover; 4. sealing block; 5. fixing assembly; 501. fixing plate; 502. U-shaped groove; 503. first rectangular slide groove; 504. telescopic fixing plate; 505. first circular hole; 506. first circular guide rod; 507. first return spring; 6. primary filter; 7. silencer assembly; 701. silencer top plate; 702. first sealing block; 703. first circular connecting hole; 704. silencer frame; 705. first sealing groove; 706, second circular connecting hole; 707, second sealing block; 708, silencer base plate; 709, second sealing groove; 8, connecting assembly; 801, button; 802, second rectangular connecting block; 803, circular sealing block; 804, fixing block; 805, triangular fixing block; 806, third rectangular connecting block; 809, rectangular sliding block; 810, threaded rod; 811, knob; 9, flow meter; 11, oxygen outlet pipe; 12, humidifier; 13, air compressor; 14, molecular sieve; 15, rectangular support plate. DETAILED DESCRIPTION

[0025] Example: See Figure 1 、 Figure 2 and Figure 3, an oxygen concentrator with a built-in silencer cover, including a device body 1, the four corners of the lower end of the device body 1 are connected to sliding wheels 2, and the lower surface of the front end of the device body 1 is connected to a fixing component 5, the upper part of the fixing component 5 is connected to a sealing block 4, the upper side of the sealing block 4 is connected to a primary filter 6, and the inner cavity of the device body 1 is connected to a silencer component 7, the upper ends of the silencer component 7 are connected to connecting components 8, the inner cavity of the silencer component 7 is connected to a rectangular support plate 15, the upper end surface of the rectangular support plate 15 is connected to an air compressor 13, and one side of the air compressor 13 is connected to the inner cavity of the silencer component 7. The end is connected to a molecular sieve 14, and the outer surface of the air compressor 13 is connected to a sound insulation cavity, and the inner cavity of the sound insulation cavity is connected to a radiator, and the outer surface of the sound insulation cavity is connected to a first rectangular support block, the outer surface of the lower end of the molecular sieve 14 is connected to a second rectangular support block, the lower end of the molecular sieve 14 is connected to a battery valve, one end of the primary filter 6 is connected to a first air pipe, the end of the first air pipe away from the primary filter 6 is connected to a secondary filter, and the end of the secondary filter away from the first air pipe is connected to a second air pipe, and the second air pipe is connected to the inner cavity of the silencer assembly 7;

[0026] See also Figure 5 The fixing assembly 5 includes a fixing plate 501, and a plurality of U-shaped grooves 502 are provided on the surface of one end of the inner cavity of the device body 1, and a first rectangular slide 503 is provided on the side surfaces of both ends of the fixing plate 501. A telescopic fixing plate 504 is connected to the inner cavity of the first rectangular slide 503, and a plurality of first circular holes 505 are provided on the surface of the telescopic fixing plate 504. A first circular guide rod 506 is connected to the inner cavity of each first circular hole 505, and a first return spring 507 is sleeved on the surface of one end of the first circular guide rod 506 away from the telescopic fixing plate 504, and the U-shaped groove 502 is respectively matched with the first rectangular support block connected to the outer surface of the sound insulation cavity and the second rectangular support block connected to the outer surface of the lower end of the molecular sieve 14.

[0027] Specifically, when one end of the fixing plate 501 contacts the inner cavity of the device body 1, the support blocks of the sound insulation cavity and the molecular sieve 14 can accurately coincide with the U-shaped groove 502. At the same time, the first return spring 507 extends and pushes the telescopic fixing plate 504 to coincide with the second fixing groove, effectively fixing the internal components of the device and keeping their positions unchanged. This fixing method facilitates the replacement of the silencer base plate through the third sliding groove, greatly reducing the difficulty of replacement and improving replacement efficiency, thereby ensuring that the oxygen concentrator can quickly resume normal operation, improving work efficiency, and enhancing user experience.

[0028] See also Figure 1 and Figure 4The upper end of the device body 1 is connected to the device cover 3, the front end surface of the device cover 3 is connected to a flow meter 9, the front end surface of the device cover 3 away from the flow meter 9 is connected to an oxygen outlet pipe 11, the end of the oxygen outlet pipe 11 away from the device cover 3 is connected to a humidifier 12, and the flow meter 9 displays the concentration of oxygen stored in the molecular sieve 14. The oxygen outlet pipe 11 is connected to the molecular sieve 14.

[0029] See also Figure 6 The silencer assembly 7 includes a silencer top plate 701, the lower end surface of the silencer top plate 701 is connected to a first sealing block 702, and both ends of the first sealing block 702 are provided with a first circular connecting hole 703, and the lower end of the silencer top plate 701 is connected to a silencer frame 704, the upper end surface of the silencer frame 704 is provided with a first sealing groove 705, and both ends of the upper end surface of the silencer frame 704 are provided with a second circular connecting hole 706, and the first circular connecting hole 703 corresponds to the second circular connecting hole 706, the silencer top plate 701 is connected to the lower end of the device cover 3, and the two ends of the silencer top plate 701 are provided with a second circular hole, and the device cover 3 is connected to the silencer top plate 701 by fixing bolts passing through the second circular holes.

[0030] See also Figure 6 The lower end of the silencer frame 704 is connected to a second sealing block 707, and the lower end of the silencer frame 704 is connected to a silencer bottom plate 708, the upper end surface of the silencer bottom plate 708 is connected to a second sealing groove 709, and a third sliding groove is provided on the lower side surface of the front end of the device body 1, and the silencer bottom plate 708 is connected to the inner cavity surface of the device body 1 through the third sliding groove.

[0031] See also Figure 6 The first sealing block 702 fits with the first sealing groove 705, and the second sealing block 707 fits with the second sealing groove 709. By overlapping the first sealing block 702 with the first sealing groove 705, and overlapping the second sealing block 707 with the second sealing groove 709, the silencer top plate 701, the silencer frame 704 and the silencer bottom plate 708 form a silencer cover.

[0032] See also Figure 7 The connecting component 8 includes a button 801, and the end of the button 801 facing the device body 1 is connected to the second rectangular connecting block 802, and both ends of the second rectangular connecting block 802 are connected to the circular sealing block 803, and the end of the button 801 away from the second rectangular connecting block 802 is connected to the fixing block 804, and the material of the circular sealing block 803 is the same as that of the silencer cover. When the circular sealing block 803 passes through the first circular connecting hole 703 and the second circular connecting hole 706, the silencer top plate 701 and the silencer frame 704 are fixed together.

[0033] Specifically, a sliding wheel 2 is provided at the lower end of the device body 1 to facilitate the movement of the oxygen concentrator to meet the needs of use in different scenarios. The device cover 3 is connected to the silencer top plate 701 by fixing bolts, which is convenient for disassembly and installation, and convenient for inspection and maintenance of internal components. The design of the connecting component 8 and the fixing component 5 also makes the replacement and adjustment of the silencer cover and internal components simpler and faster, reducing maintenance costs and difficulty.

[0034] See also Figure 7 The upper end of the fixed block 804 is connected to the triangular fixed block 805, and the upper end of the triangular fixed block 805 is connected to the third rectangular connecting block 806. The end of the third rectangular connecting block 806 facing the circular sealing block 803 is connected to the rectangular sliding block 809. A threaded rod 810 is connected to the inner cavity of the rectangular sliding block 809, and the end of the threaded rod 810 away from the rectangular sliding block 809 is connected to the knob 811. A first sliding groove is provided at the upper end of the inner cavity of the device body 1, and the second rectangular connecting block 802 is installed in the inner cavity of the first sliding groove, and a second sliding groove is provided at the lower end of the first sliding groove, and the rectangular sliding block 809 is installed in the inner cavity of the second sliding groove, and the threaded rod 810 is connected to the knob 811 by passing through the outer surface of the device body 1.

[0035] Specifically, the connection assembly 8 uses a circular sealing block 803 that penetrates the connection hole to secure the silencer top plate 701 and the silencer frame 704. A triangular fixing block 805 cooperates with a third rectangular connecting block 806 to replace traditional fixing bolts. Furthermore, the circular sealing block 803 is made of the same material as the silencer cover, ensuring a secure connection while maintaining the soundproofing effect of the silencer cover, improving soundproofing efficiency and creating a quiet user environment.

[0036] Working principle: First, when the silencer cover of the oxygen concentrator is used for a long time and the silencer effect is reduced or even fails due to reasons such as material aging, physical damage or changes in the use environment, the silencer cover needs to be replaced. At this time, the knob 811 is turned to drive the threaded rod 810 to rotate, and then the rectangular sliding block 809 is driven to move along the second sliding groove toward the direction of the knob 811 until the rectangular sliding block 809 moves to the other end of the second sliding groove. At this time, the triangular fixing block 805 is separated from the fixing block 804;

[0037] When the triangular fixing block 805 is separated from the fixing block 804, the button 801 is pulled outward, and the second rectangular connecting block 802 is driven to move along the first sliding groove toward the button 801, thereby driving the circular sealing block 803 and the fixing block 804 to move toward the button 801 until the second rectangular connecting block 802 contacts the inner wall of the first sliding groove. At this time, the circular sealing block 803 is separated from the first circular connecting hole 703 and the second circular connecting hole 706. Then, the device cover 3 is pulled upward, and the first sealing block 702 is separated from the first sealing groove 705, thereby separating the device cover 3 from the device body 1, and separating the silencer top plate 701 and the silencer frame 704, and then removing the silencer frame 704 from the inner cavity of the device body 1;

[0038] When removing the muffler frame 704 from the inner cavity of the device body 1, the sealing block 4 is pulled out to expose the fixing groove provided on the surface of the device body 1. Then, the fixing assembly 5 is pulled out from the lower end surface of the device body 1 and moved along the fixing groove toward the inner cavity of the device body 1 until one end of the fixing plate 501 contacts the inner cavity of the device body 1.

[0039] When one end of the fixing plate 501 contacts the inner cavity of the device body 1, the first rectangular support block connected to the outer surface of the sound insulation cavity and the second rectangular support block connected to the outer surface of the lower end of the molecular sieve 14 will coincide with the U-shaped groove 502. At the same time, the first return spring 507 connected at both ends of the fixing plate 501 will be extended, thereby generating a thrust on the telescopic fixing plate 504, and then the telescopic fixing plate 504 will move along the first circular guide rod 506 toward the second fixing groove opened on the inner wall surface of the device body 1, and one end of the telescopic fixing plate 504 will coincide with the second fixing groove. At this time, the fixing component 5 fixes the components inside the device body 1 and keeps their position unchanged, and then takes out the third sliding groove opened on the lower side of the front end surface of the device body 1. After the silencing bottom plate 708 is removed, the new silencing bottom plate 708 is moved along the third sliding groove toward the inner cavity of the device body 1 until one end of the silencing bottom plate 708 contacts the inner cavity surface of the device body 1, and then the fixing assembly 5 is restored to its original position, and the device cover 3 is separated from the silencing top plate 701 by removing the fixing bolts, and the device cover 3 is fixed together with the new silencing top plate 701 by the fixing bolts, and then the second sealing block 707 connected to the lower end of the new silencing frame 704 is overlapped with the second sealing groove 709, and the first sealing block 702 connected to the lower end of the new silencing top plate 701 is overlapped with the first sealing groove 705. At this time, the replacement operation of the silencing hood is completed, and the connecting assembly 8 is restored to its original position, and all operations are completed.

[0040] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An oxygen concentrator with a built-in silencer cover, comprising a device body (1), characterized in that: The four corners of the lower end of the device body (1) are connected to sliding wheels (2), and the lower surface of the front end of the device body (1) is connected to a fixing component (5), the upper part of the fixing component (5) is connected to a sealing block (4), the upper side of the sealing block (4) is connected to a first-stage filter (6), and the inner cavity of the device body (1) is connected to a silencer component (7), the upper two sides of the silencer component (7) are connected to connecting components (8), the inner cavity of the silencer component (7) is connected to a rectangular support plate (15), the upper end surface of the rectangular support plate (15) is connected to an air compressor (13), and one end of the air compressor (13) is connected to a molecular sieve (14); The fixing assembly (5) includes a fixing plate (501), a plurality of U-shaped grooves (502) are provided on the surface of one end of the fixing plate (501) facing the inner cavity of the device body (1), and first rectangular sliding grooves (503) are provided on the side surfaces of both ends of the fixing plate (501), a telescopic fixing plate (504) is connected in the inner cavity of the first rectangular sliding groove (503), a plurality of first circular holes (505) are provided on the surface of the telescopic fixing plate (504), a first circular guide rod (506) is connected in the inner cavity of each of the first circular holes (505), and a first return spring (507) is sleeved on the surface of one end of the first circular guide rod (506) away from the telescopic fixing plate (504); The muffler assembly (7) includes a muffler top plate (701), the lower end surface of the muffler top plate (701) is connected to a first sealing block (702), both ends of the first sealing block (702) are provided with first circular connecting holes (703), and the lower end of the muffler top plate (701) is connected to a muffler frame (704), the upper end surface of the muffler frame (704) is provided with a first sealing groove (705), and both ends of the muffler frame (704) are provided with second circular connecting holes (706); The lower end of the muffler frame (704) is connected to a second sealing block (707), and the lower end of the muffler frame (704) is connected to a muffler bottom plate (708), and the upper end surface of the muffler bottom plate (708) is connected to a second sealing groove (709); The outer surface of the air compressor (13) is connected to a sound insulation cavity, and the outer surface of the sound insulation cavity is connected to a first rectangular support block, and the outer surface of the lower end of the molecular sieve (14) is connected to a second rectangular support block; The U-shaped groove (502) respectively fits with a first rectangular support block connected to the outer surface of the sound insulation cavity and a second rectangular support block connected to the outer surface of the lower end of the molecular sieve (14).

2. The oxygen concentrator with a built-in silencer cover according to claim 1, characterized in that: The upper end of the device body (1) is connected to a device cover (3), a front side surface of the device cover (3) is connected to a flow meter (9), an end of the front end surface of the device cover (3) away from the flow meter (9) is connected to an oxygen outlet pipe (11), and an end of the oxygen outlet pipe (11) away from the device cover (3) is connected to a humidifier (12).

3. The oxygen concentrator with a built-in silencer cover according to claim 2, characterized in that: The first sealing block (702) fits in with the first sealing groove (705), and the second sealing block (707) fits in with the second sealing groove (709).

4. The oxygen concentrator with a built-in silencer cover according to claim 3, characterized in that: The connecting assembly (8) comprises a button (801), wherein one end of the button (801) facing the device body (1) is connected to a second rectangular connecting block (802), both ends of the second rectangular connecting block (802) are connected to circular sealing blocks (803), and one end of the button (801) away from the second rectangular connecting block (802) is connected to a fixing block (804).

5. The oxygen concentrator with a built-in silencer cover according to claim 4, characterized in that: The upper end of the fixing block (804) is connected to a triangular fixing block (805), the upper end of the triangular fixing block (805) is connected to a third rectangular connecting block (806), the end of the third rectangular connecting block (806) facing the circular sealing block (803) is connected to a rectangular sliding block (809), a threaded rod (810) is connected to the inner cavity of the rectangular sliding block (809), and the end of the threaded rod (810) away from the rectangular sliding block (809) is connected to a knob (811).

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