Oxygen generator water tank joint structure and oxygen generator

Abstract

The utility model discloses an oxygenerator water tank joint structure which comprises a shell, a filter element cover, an air outlet channel and an air inlet channel, the air outlet channel and the air inlet channel are arranged on the shell, the air outlet channel and the air inlet channel are arranged corresponding to a water tank, the filter element cover is located in the shell and detachably arranged on the air inlet channel, and the filter element cover is located in the shell and detachably arranged on the air inlet channel. A filter element is placed in the air inlet channel, and the filter element cover keeps the filter element in the air inlet channel; and the filter element cover is also provided with a pipeline joint. The utility model also relates to an oxygen generator. According to the utility model, by arranging the detachable filter element and the filter element cover, foreign matters such as bacteria on air or a water tank can be effectively prevented from entering the filter element cover, so that the foreign matters are prevented from polluting an oxygen pipeline in the oxygen generator; meanwhile, the mounting and dismounting structure of the water tank is simplified.

Description

Technical Field

[0001] The utility model relates to a water tank joint structure of an oxygen generator and an oxygen generator, belonging to the technical field of oxygen generators. Background Art

[0002] The existing oxygen generators on the market mainly use the principle of pressure swing adsorption technology to produce oxygen. This scheme uses a compressor to pressurize air, and the pressurized air passes through a molecular sieve to separate nitrogen in the air, thereby generating oxygen with a high concentration. In order to keep the oxygen output by the oxygen generator appropriately humid, the high-concentration oxygen will first pass through a water tank and then reach the oxygen outlet of the oxygen generator. The function of the water tank is to humidify the high-concentration oxygen and cool the oxygen. The water tank is generally detachably arranged on the oxygen generator and needs to be filled with water irregularly. Therefore, bacteria or other impurities in the air may enter the internal pipeline of the oxygen generator through the interface used to connect with the water tank, resulting in pollution of the internal pipeline of the oxygen generator. Therefore, how to avoid pollution of the internal pipeline of the oxygen generator has become a technical problem that must be solved by the oxygen generator. Summary of the Utility Model

[0003] In order to overcome the problems existing in the prior art, the utility model provides a water tank joint structure of an oxygen generator and an oxygen generator, which can effectively avoid pollution of the internal pipeline of the oxygen generator. The specific technical solutions are as follows.

[0004] A water tank joint structure of an oxygen generator includes a housing and an air outlet channel and an air inlet channel arranged on the housing. The air outlet channel and the air inlet channel correspond to the water tank. It is characterized in that: it further includes a filter element cover, the filter element cover is located inside the housing and the filter element cover is detachably arranged on the air inlet channel, a filter element is placed in the air inlet channel, and the filter element cover holds the filter element in the air inlet channel; the filter element cover also has a pipe joint.

[0005] Adopting the above technical solution, when the oxygen generator works, the high-concentration oxygen enters the filter element cover from the oxygen pipeline in the housing through the pipe joint. After the oxygen passes through the filter element, it will enter the water tank, and then the oxygen in the water tank will enter the air outlet channel and then reach the oxygen outlet of the oxygen generator for the user to inhale. When the oxygen generator does not work, the filter element can block air or foreign matters such as bacteria on the water tank from entering the filter element cover, thereby preventing foreign matters from polluting the oxygen pipeline inside the oxygen generator.

[0006] Furthermore, the air inlet channel has a first positioning member. Preferably, the first positioning member is a positioning ring. The filter element cover has a second positioning member, and the second positioning member is a filter element abutting surface. The two ends of the filter element are respectively abutted and positioned by the first positioning member and the second positioning member to prevent the filter element from moving in the air inlet channel.

[0007] Furthermore, the air inlet passage is a circular tube, and the inner end face of the air inlet passage has an annular groove, and an annular sealing ring is arranged in the annular groove; the filter element cover has an annular protrusion corresponding to the annular groove. When the filter element cover is installed at the inner end of the air inlet passage, the annular protrusion is inserted into the annular groove and presses the annular sealing ring tightly to prevent oxygen leakage at the filter element cover. Preferably, the height of the inner side wall of the annular groove along the axial direction of the air inlet passage is greater than the height of the outer side wall of the annular groove along the axial direction of the air inlet passage. Such a setting can prevent the sealing ring from popping out and falling off when installing the sealing ring.

[0008] Furthermore, fixing posts are arranged on the housing, and the filter element cover is fixed to the housing through fasteners. Fixing the filter element cover through fasteners is beneficial to the installation and replacement of the filter element.

[0009] Based on the same inventive concept, the present utility model also relates to an oxygen generator, which includes a water tank detachably arranged on the housing; the water tank has a first protruding cylinder and a second protruding cylinder, and annular sealing rings are arranged on the outer walls of the first protruding cylinder and the second protruding cylinder; when the water tank is installed on the housing, the first protruding cylinder is inserted into the air inlet passage, and the second protruding cylinder is inserted into the air outlet passage. When installing the water tank, just insert the first protruding cylinder and the second protruding cylinder of the water tank into the air inlet passage and the air outlet passage of the housing. When disassembling the water tank, just pull out the water tank from the housing. The annular sealing rings on the first protruding cylinder and the second protruding cylinder can ensure the sealed connection between the water tank and the housing and prevent oxygen leakage.

[0010] Furthermore, annular grooves are arranged on the outer walls of the first protruding cylinder and the second protruding cylinder, and the annular sealing rings are arranged in the annular grooves. Arranging the annular grooves helps to prevent the annular sealing rings from accidentally falling off.

[0011] Furthermore, the housing has a water tank bin with a concave structure, and the water tank is located in the water tank bin. Arranging the water tank bin with a concave structure can ensure that the water tank does not protrude from the outer surface of the housing after the water tank is installed.

[0012] Furthermore, the water tank has an upper flange and a lower flange. Arranging the upper flange and the lower flange is beneficial to disassembling the water tank from the housing.

[0013] By providing a detachable filter element and filter element cover, the present utility model can effectively block foreign matters such as bacteria in the air or on the water tank from entering the filter element cover, thereby preventing the foreign matters from contaminating the oxygen pipeline inside the oxygen generator; at the same time, it also simplifies the installation and disassembly structure of the water tank. Description of the Drawings

[0014] Figure 1 is a schematic diagram of the water tank joint structure of the oxygen generator of the present utility model;

[0015] Figure 2 It is a partial schematic diagram of the inner side of the housing;

[0016] Figure 3 It is a schematic diagram after the filter element cover is installed inside the housing;

[0017] Figure 4 It is a schematic diagram of the outer side of the housing (the water tank is removed);

[0018] Figure 5 It is a schematic diagram of the water tank.

[0019] In the figure: housing 1, air outlet channel 1.1, air inlet channel 1.2, annular groove 1.2.1, first positioning member 1.3, fixing post 1.4, water tank compartment 1.5, water tank 2, first protruding cylinder 2.1, second protruding cylinder 2.2, lower end flange 2.3, upper end flange 2.4, filter element cover 3, pipe joint 3.1, second positioning member 3.2, annular protrusion 3.3, annular sealing ring 4, fastener 5, filter element 6. Specific embodiments

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] See Figures 1 - 5 , the oxygen generator includes an oxygen generator main structure (housing 1) and a water tank 2 detachably installed on the housing 1. The oxygen generator water tank joint structure includes a housing 1, a filter element cover 3, and an air outlet channel 1.1 and an air inlet channel 1.2 provided on the housing 1. The air outlet channel 1.1 and the air inlet channel 1.2 are arranged corresponding to the water tank 2. It further includes a filter element cover 3. The filter element cover 3 is located inside the housing 1 and is detachably arranged on the air inlet channel 1.2. A filter element 6 is placed in the air inlet channel 1.2, and the filter element cover 3 holds the filter element 6 in the air inlet channel 1.2; the filter element cover 3 also has a pipe joint 3.1.

[0022] Among them, a first positioning member 1.3 is provided in the air inlet channel 1.2. Preferably, the first positioning member 1.3 is a positioning ring. The filter element cover 3 has a second positioning member 3.2, and the second positioning member 3.2 is a filter element abutting surface. Both ends of the filter element 6 are abutted and positioned by the first positioning member 1.3 and the second positioning member 3.2 respectively, preventing the filter element 6 from moving in the air inlet channel 1.2.

[0023] Preferably, the intake passage 1.2 is circular and tubular, and the inner end face of the intake passage 1.2 has an annular groove 1.2.1, and an annular sealing ring 4 is arranged in the annular groove 1.2.1; the filter element cover 3 has an annular protrusion 3.3 corresponding to the annular groove 1.2.1. When the filter element cover 3 is installed at the inner end of the intake passage 1.2, the annular protrusion 3.3 is inserted into the annular groove 1.2.1 and presses the annular sealing ring 4 tightly to prevent oxygen from leaking at the filter element cover 3. Preferably, the height of the inner side wall of the annular groove 1.2.1 along the axial direction of the intake passage 1.2 is greater than the height of the outer side wall of the annular groove 1.2.1 along the axial direction of the intake passage 1.2. Such a setting can prevent the sealing ring from popping out and falling off when installing the sealing ring.

[0024] Furthermore, fixing posts 1.4 are arranged on the housing 1, and the filter element cover 3 is fixed to the fixing posts 1.4 of the housing 1 through a fastener 5 (screw), and the filter element cover 3 covers the inner end of the intake passage 1.2. Fixing the filter element cover 3 through the fastener 5 is beneficial to the installation and replacement of the filter element 6.

[0025] The water tank 2 has a first protruding cylinder 2.1 and a second protruding cylinder 2.2, and annular sealing rings 4 are arranged on the outer walls of the first protruding cylinder 2.1 and the second protruding cylinder 2.2; when the water tank 2 is installed on the housing 1, the first protruding cylinder 2.1 is inserted into the intake passage 1.2, and the second protruding cylinder 2.2 is inserted into the air outlet passage 1.1. When installing the water tank 2, the first protruding cylinder 2.1 and the second protruding cylinder 2.2 of the water tank 2 are inserted into the intake passage 1.2 and the air outlet passage 1.1 of the housing 1 respectively. When disassembling the water tank 2, the water tank 2 can be pulled out from the housing 1. The annular sealing rings 4 on the first protruding cylinder 2.1 and the second protruding cylinder 2.2 can ensure the sealed connection between the water tank 2 and the housing 1 and prevent oxygen leakage.

[0026] When the oxygen generator is working, high-concentration oxygen enters the filter element cover 3 from the oxygen pipeline (not shown) in the housing 1 through the pipeline joint 3.1. After passing through the filter element 6, the oxygen enters the water tank 2 through the first protruding cylinder 2.1, and then the oxygen in the water tank 2 enters the air outlet passage 1.1 through the second protruding cylinder 2.2, and then reaches the oxygen outlet of the oxygen generator for the user to inhale. When the oxygen generator is not working, or after the water tank 2 is disassembled, the filter element 6 can block air or foreign matters such as bacteria on the water tank 2 from entering the filter element cover 3, thereby preventing foreign matters from contaminating the oxygen pipeline inside the oxygen generator.

[0027] Preferably, annular grooves (not shown) are arranged on the outer walls of the first protruding cylinder 2.1 and the second protruding cylinder 2.2, and the annular sealing ring 4 is arranged in the annular groove. Arranging the annular groove helps to prevent the annular sealing ring 4 from accidentally falling off.

[0028] Preferably, the housing 1 has a water tank compartment 1.5 in a concave structure, and the water tank 2 is located in the water tank compartment 1.5. The concave structure of the water tank compartment 1.5 ensures that the water tank 2 does not protrude from the outer surface of the housing 1 after the water tank 2 is installed.

[0029] Preferably, the water tank 2 has an upper flange 2.4 and a lower flange 2.3. The lower flange 2.3 facilitates the user to take out the water tank 2 from the oxygen concentrator. The user manually moves the lower flange 2.3, and the bottom of the water tank 2 tilts up so that the upper flange 2.4 on the top of the water tank 2 rests on the curved edge of the water tank compartment 3. When the user moves the water tank 2 with force, the upper flange 2.4 on the top of the water tank slides forward to make the annular sealing ring 4 of the first protruding cylinder 2.1 and the second protruding cylinder 2.2 of the water tank 2 disengage from the air inlet channel 1.2 and the air outlet channel 1.1, so that the user can easily take out the water tank 2.

[0030] The embodiments of the utility model are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments of the utility model and the features in the embodiments can be combined with each other. The utility model is not limited to the above-mentioned specific implementation methods, which are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, which all belong to the protection scope of the utility model.

Claims

1. An oxygen concentrator water tank joint structure, comprising a housing (1) and an air outlet channel (1.1) and an air inlet channel (1.2) arranged on the housing (1), wherein the air outlet channel (1.1) and the air inlet channel (1.2) are arranged corresponding to the water tank (2), and characterized in that: The invention also comprises a filter element cover (3), the filter element cover (3) being located inside the housing (1) and the filter element cover (3) being detachably arranged on the air intake channel (1.2), a filter element (6) being placed inside the air intake channel (1.2), and the filter element cover (3) retaining the filter element (6) inside the air intake channel (1.2); the filter element cover (3) also has a pipe joint (3.1).

2. The oxygen concentrator water tank joint structure according to claim 1, characterized in that: The air inlet channel (1.2) has a first positioning member (1.3), the filter element cover (3) has a second positioning member (3.2), and the second positioning member (3.2) is a filter element abutment surface.

3. The oxygen concentrator water tank joint structure according to claim 2, characterized in that: The first positioning member (1.3) is a positioning ring.

4. The oxygen concentrator water tank joint structure according to claim 1, characterized in that: The air inlet channel (1.2) is in the shape of a circular tube, the inner end surface of the air inlet channel (1.2) has an annular groove (1.2.1), an annular sealing ring (4) is arranged in the annular groove (1.2.1); the filter element cover (3) has an annular protrusion (3.3) corresponding to the annular groove (1.2.1).

5. The oxygen concentrator water tank joint structure according to claim 4, characterized in that: The height of the inner wall of the annular groove (1.2.1) along the axial direction of the air intake channel (1.2) is greater than the height of the outer wall of the annular groove (1.2.1) along the axial direction of the air intake channel (1.2).

6. The oxygen concentrator water tank joint structure according to claim 1, characterized in that: A fixing column (1.4) is provided on the housing (1), and the filter element cover (3) is fixed to the housing (1) via a fastener (5).

7. An oxygen concentrator, comprising the oxygen concentrator water tank (2) joint structure according to any one of claims 1 to 6, and a water tank (2) detachably arranged on the housing (1); characterized in that: The water tank (2) comprises a first protruding cylinder (2.1) and a second protruding cylinder (2.2), and an annular sealing ring (4) is provided on the outer wall of the first protruding cylinder (2.1) and the second protruding cylinder (2.2); when the water tank (2) is installed on the shell (1), the first protruding cylinder (2.1) is inserted into the air inlet channel (1.2), and the second protruding cylinder (2.2) is inserted into the air outlet channel (1.1).

8. An oxygen concentrator according to claim 7, characterized in that: An annular groove is provided on the outer wall of the first protruding cylinder (2.1) and the second protruding cylinder (2.2), and the annular sealing ring (4) is arranged in the annular groove.

9. An oxygen concentrator according to claim 7, characterized in that: The housing (1) has a water tank compartment (1.5) in a concave structure, and the water tank (2) is located in the water tank compartment (1.5).

10. An oxygen concentrator according to claim 9, characterized in that: The water tank (2) has an upper flange (2.4) and a lower flange (2.3).

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