Lower end cover structure of portable system

Abstract

The utility model discloses a lower end cover structure of a portable system, and belongs to the field of oxygen generators. A lower end cover structure of a portable system comprises a substrate and further comprises two long grooves which are both formed in the substrate; the two frame plates are fixedly connected to the bottom of the base plate, and the two long grooves correspond to the two frame plates in position. The mounting plate is connected with the base plate, an air inlet pipe and an air outlet pipe are arranged on the mounting plate, and air holes communicated with the long grooves are formed in the air inlet pipe and the air outlet pipe; the flange is arranged on the base plate, and the flange surrounds the base plate by a circle; the whole lower end cover is integrally arranged and does not need to be sealed by a silicone tube after being spliced, so that the lower end cover is more convenient to use, good in sealing performance, free of gas leakage and convenient to mount and dismount.

Description

Technical Field

[0001] This utility model relates to the field of oxygen generator technology, and in particular to a lower end cover structure for a portable system. Background Technology

[0002] The lower cap of the portable system is a component that is connected to the bottom of the molecular sieve cylinder inside the oxygen generator. It forms a seal with the sieve cylinder or other components through mechanical connection, which can prevent gas leakage and maintain the stability of the molecular sieve bed.

[0003] Currently, when installing the lower end cap with the molecular sieve, silicone or rubber tubing is usually used for pre-assembly to connect the various parts together and form a seal. However, silicone seals need to be replaced or cleaned regularly. If they are prone to aging or deformation due to scale or in high temperature and humid environments, the sealing performance will decrease, which may cause gas leakage or fluctuations in oxygen concentration. It will also increase the difficulty of disassembly and assembly and increase maintenance costs. In view of this, this utility model is proposed. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art and to propose a lower end cover structure for a portable system.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A portable system lower end cover structure includes a substrate and further includes:

[0007] Both long slots are set on the substrate;

[0008] Both frame plates are fixedly connected to the bottom of the base plate, and the two long slots correspond to the positions of the two frame plates respectively;

[0009] A mounting plate connected to a substrate, the mounting plate being provided with an air inlet pipe and an air outlet pipe, both of which are provided with air holes communicating with a long slot;

[0010] A flange is disposed on the substrate and the flange surrounds the substrate.

[0011] Preferably, the substrate is further provided with two symmetrically arranged protrusions, and a molecular sieve connecting groove is formed between the flange and the protrusions.

[0012] Furthermore, both of the protrusions are arranged in a closed loop, and the elongated grooves are respectively disposed within the two protrusions.

[0013] Furthermore, the flange is provided with an arc groove, and the substrate is provided with a first mounting hole at the position of the arc groove, the first mounting hole and the arc groove being concentrically arranged.

[0014] Preferably, both the air inlet pipe and the air outlet pipe are provided with annular grooves, and annular sealing rings are connected inside the annular grooves. The tops of both the air inlet pipe and the air outlet pipe are conical, and the mounting plate is provided with a second mounting hole.

[0015] Preferably, each of the two frame plates is fixedly connected with a protrusion, and two arc-shaped rods are rotatably connected between the two protrusions. A locking block is fixedly connected to the bottom of the substrate, and a protrusion is provided on the locking block. The two arc-shaped rods can be locked between the protrusion and the bottom outer wall of the substrate.

[0016] Furthermore, the locking blocks are provided in four symmetrical configurations, and each of the arc-shaped rods is limited by two locking blocks.

[0017] Preferably, the substrate has arc-shaped strips on both sides of the long groove, and the top outer wall of the flange has multiple limiting blocks.

[0018] Compared with the prior art, the present invention provides a lower end cover structure for a portable system, which has the following advantages:

[0019] 1. The lower end cap structure of this portable system is installed by inserting the end of the molecular sieve tower into the flange. The flange is integrally formed on the substrate, making the entire lower end cap a single piece, thereby enhancing the overall sealing performance. It eliminates the need for splicing and sealing with silicone tubes, making it more convenient to use. This allows it to be used in harsh environments such as high temperature and humidity without causing gas leakage, and it is also easy to install and disassemble.

[0020] 2. The lower end cover structure of this portable system allows the two arc-shaped rods to be pulled out and separated from the bottom outer wall of the base plate. Then, the two arc-shaped rods can be brought together to be used as handles, thereby lifting the lower end cover for easy carrying. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the lower end cover of a portable system proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of a portable system with a limiting block in the lower end cover structure proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of a portable system lower end cover structure without an annular sealing ring proposed in this utility model;

[0024] Figure 4 This is a schematic diagram of the arc-shaped rod in the lower end cover structure of a portable system proposed in this utility model when it is not in use;

[0025] Figure 5 This is a schematic diagram of the arc-shaped rod in the lower end cover structure of a portable system proposed in this utility model when in use;

[0026] Figure 6 This is a cross-sectional schematic diagram of the lower end cover structure of a portable system proposed in this utility model;

[0027] Figure 7 This utility model proposes a lower end cover structure for a portable system. Figure 5 An enlarged schematic diagram of part A in the middle.

[0028] In the figure: 1. Substrate; 101. Flange; 102. Raised bar; 103. Arc groove; 104. First mounting hole; 105. Limiting block; 2. Mounting plate; 201. Air inlet pipe; 202. Air outlet pipe; 203. Air hole; 204. Annular sealing ring; 205. Annular groove; 206. Second mounting hole; 3. Long groove; 301. Arc strip; 4. Frame plate; 401. Protrusion; 402. Arc rod; 403. Locking block; 404. Protrusion. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Reference Figures 1-7 A portable system lower end cover structure includes a substrate 1 and two elongated slots 3 disposed on the substrate 1. Two frame plates 4 are fixedly connected to the bottom of the substrate 1, and the two elongated slots 3 correspond to the positions of the two frame plates 4 respectively. A mounting plate 2 connected to the substrate 1 is also provided. An air inlet pipe 201 and an air outlet pipe 202 are provided on the mounting plate 2. Both the air inlet pipe 201 and the air outlet pipe 202 are provided with air holes 203 that communicate with the elongated slots 3. A flange 101 is provided at the edge of the substrate 1 and the flange 101 surrounds the substrate 1.

[0032] In this invention, the end of the molecular sieve tower is first installed by inserting it into the flange 101. The flange 101 is integrally formed on the base plate 1, making the entire lower end cover an integral piece, thereby enhancing the overall sealing performance. It eliminates the need for splicing and sealing with silicone tubes, making it more convenient to use. This allows it to be used in harsh environments such as high temperature and humidity without causing gas leakage. It is also easy to install and disassemble. In use, pipes are connected to the inlet pipe 201 and the outlet pipe 202. Gas enters the pore 203 through the inlet pipe 201 and then enters the interior of the molecular sieve tower through the long groove 3. Similarly, when the gas is discharged, it enters the pore 203 through the long groove 3 and then is discharged through the pipe connected to the outlet pipe 202, thus completing the gas delivery operation.

[0033] Reference Figures 1-3 and Figure 6 The substrate 1 is also provided with two symmetrically arranged protrusions 102. A molecular sieve connection groove is formed between the flange 101 and the protrusions 102. The molecular sieve tower is installed and connected in the molecular sieve connection groove. The flange 101 and the protrusions 102 can tightly wrap the outer wall and inner wall of the molecular sieve to ensure sealing performance and connection stability.

[0034] Both protrusions 102 are arranged in a closed loop, and the long grooves 3 are respectively arranged in the two protrusions 102; the two protrusions 102 can connect two molecular sieves at the same time, and the two long grooves 3 are respectively connected to the two molecular sieves, so that gas can flow.

[0035] Reference Figures 1-3 and Figure 6 The flange 101 is provided with an arc groove 103, and the base plate 1 is provided with a first mounting hole 104 at the position of the arc groove 103. The first mounting hole 104 and the arc groove 103 are concentrically arranged. The molecular sieve tower can be fixedly installed on the base plate 1 by bolts through the arc groove 103 and the first mounting hole 104, so that the connection is more stable and convenient to use. Moreover, there are multiple arc grooves 103 and first mounting holes 104, which can enhance the fixing effect.

[0036] Reference Figures 1-3 and Figure 6Both the inlet pipe 201 and the outlet pipe 202 are provided with annular grooves 205, and annular sealing rings 204 are connected inside the annular grooves 205. The tops of the inlet pipe 201 and the outlet pipe 202 are both tapered. The mounting plate 2 is provided with a second mounting hole 206. The top ends of the inlet pipe 201 and the outlet pipe 202 are provided with inclined tapered surfaces, which makes it easier for the pipes to be inserted into the inlet pipe 201 and the outlet pipe 202. The annular sealing rings 204 can seal the connection between the inlet pipe 201, the outlet pipe 202 and the pipes to prevent gas leakage. At the same time, the annular sealing rings 204 can also make the connection between the pipes and the inlet pipe 201 and the outlet pipe 202 tighter, preventing them from falling off during use. The mounting plate 2 is provided with a second mounting hole 206, which allows the mounting plate 2 to be easily fixed and installed on other structures.

[0037] Reference Figure 4 , Figure 5 and Figure 7 Both frame plates 4 are fixedly connected with protrusions 401, and two arc rods 402 are rotatably connected between the two protrusions 401. A locking block 403 is fixedly connected to the bottom of the substrate 1. A protrusion 404 is provided on the locking block 403, and the two arc rods 402 can be locked between the protrusion 404 and the bottom outer wall of the substrate 1.

[0038] There are four mutually symmetrical locking blocks 403, and each arc-shaped rod 402 is limited by two locking blocks 403.

[0039] In this invention, when not in use, the two arc-shaped rods 402 can be pulled out to detach from the locking block 403 and the bottom outer wall of the substrate 1. Then, the two arc-shaped rods 402 can be brought together to serve as handles, thereby lifting the lower end cover for easy carrying. When not in use, the arc-shaped rods 402 are limited by the locking block 403. It should be noted that both the arc-shaped rods 402 and the locking block 403 are made of plastic material, which can produce a certain degree of deformation, making it convenient to install and remove the arc-shaped rods 402.

[0040] Reference Figures 1-6 Arc-shaped strips 301 are provided on both sides of the long groove 3 on the substrate 1, and multiple limiting blocks 105 are provided on the top outer wall of the flange 101. The arc-shaped strips 301 are used to facilitate the installation and positioning of the internal components of the molecular sieve, and the limiting blocks 105 are used to increase the contact area between the flange 101 and the outer wall of the molecular sieve tower, thereby further enhancing stability.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A portable system lower end cover structure, comprising a substrate (1), characterized in that, Also includes: Two long slots (3) are both set on the substrate (1); Two frame plates (4) are fixedly connected to the bottom of the base plate (1), and the two long grooves (3) correspond to the positions of the two frame plates (4) respectively; A mounting plate (2) connected to the substrate (1) is provided with an air inlet pipe (201) and an air outlet pipe (202), and both the air inlet pipe (201) and the air outlet pipe (202) are provided with air holes (203) that communicate with the long groove (3). A flange (101) is disposed on the substrate (1) and the flange (101) surrounds the substrate (1) around the perimeter.

2. The portable system lower end cover structure according to claim 1, characterized in that, The substrate (1) is also provided with two symmetrically arranged protrusions (102), and a molecular sieve connecting groove is formed between the flange (101) and the protrusions (102).

3. The portable system lower end cover structure according to claim 2, characterized in that, Both of the protrusions (102) are arranged in a closed loop, and the long grooves (3) are respectively arranged in the two protrusions (102).

4. The portable system lower end cover structure according to claim 2, characterized in that, The flange (101) is provided with an arc groove (103), and the substrate (1) is provided with a first mounting hole (104) at the position of the arc groove (103). The first mounting hole (104) and the arc groove (103) are concentrically arranged.

5. The portable system lower end cover structure according to claim 1, characterized in that, Both the air inlet pipe (201) and the air outlet pipe (202) are provided with annular grooves (205), and annular sealing rings (204) are connected in the annular grooves (205). The tops of the air inlet pipe (201) and the air outlet pipe (202) are both tapered, and the mounting plate (2) is provided with a second mounting hole (206).

6. The portable system lower end cover structure according to claim 1, characterized in that, Both of the frame plates (4) are fixedly connected with protrusions (401), and two arc rods (402) are rotatably connected between the two protrusions (401). A locking block (403) is fixedly connected to the bottom of the substrate (1). A protrusion (404) is provided on the locking block (403), and the two arc rods (402) can be locked between the protrusion (404) and the bottom outer wall of the substrate (1).

7. The portable system lower end cover structure according to claim 6, characterized in that, The locking blocks (403) are provided in four symmetrical positions, and each of the arc-shaped rods (402) is limited by two locking blocks (403).

8. The portable system lower end cover structure according to claim 1, characterized in that, Arc-shaped strips (301) are provided on both sides of the long groove (3) on the substrate (1), and multiple limiting blocks (105) are provided on the top outer wall of the flange (101).

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