Oxygen supply mode switching structure

Abstract

The utility model discloses an oxygen supply mode switching structure which comprises a valve body, an adjusting ring and an elastic switching assembly. The valve body is installed on the inner side of the adjusting ring in a matched mode and provided with a pulse channel and a continuous channel. The continuous channel comprises an air inlet channel, a mounting groove and an air outlet channel which are communicated in sequence, and the elastic switching assembly is arranged in the mounting groove; the elastic switching assembly comprises a valve seat, a valve rod and an elastic component, the valve seat is fixedly arranged in the mounting groove, the valve rod is movably connected with the valve seat, one end of the valve rod is opposite to one end face of the adjusting ring, and the other end of the valve rod abuts against the inner wall of the mounting groove through the elastic component. And the oxygen supply mode is switched between a continuous mode and a pulse mode by shifting the adjusting ring. According to the oxygen supply device, the adjusting ring and the elastic switching assembly are arranged, so that a user can adjust the state of the elastic switching assembly by shifting the adjusting ring, oxygen supply modes can be switched conveniently and rapidly, and meanwhile the overall appearance of the oxygen supply device is more concise and attractive.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen supply equipment, in particular to an oxygen supply mode switching structure. Background Art

[0002] There are generally two oxygen supply modes for oxygen supply equipment: continuous mode and pulse mode. In order to switch between the two modes, one or more components for switching are usually required. Currently, there are many forms of components for mode switching on the market, but the common problem is that the structure is complex, which is not convenient for mode switching operation, and is usually set on the surface of the oxygen supply equipment, with a prominent structure that affects the appearance. Therefore, there is a need for a mode switching structure that is simple and novel in structure, easy to operate, and can meet the requirements of continuous mode and pulse mode operation and mode switching. Utility Model Content

[0003] The utility model provides an oxygen supply mode switching structure to overcome the technical problems that the existing oxygen supply mode switching structure is complicated and inconvenient to operate and use.

[0004] In order to achieve the above purpose, the technical solution of the utility model is:

[0005] 14. The operative position of claim 13, wherein the operative position of the valve stem is such that the vent valve is in contact with the valve body and the vent valve is in contact with the valve stem. The vent valve is pressed against the valve body and the vent valve is in contact with the valve body. The vent valve is pressed against the valve body and the vent valve is in contact with the valve body. The vent valve is pressed against the valve body and the vent valve is in contact with the valve body.

[0006] Furthermore, the inner wall of the adjustment ring is adjacently provided with a continuous mode groove and a pulse mode groove along the axial direction of the adjustment ring, and a plurality of elastic top screws are provided at the edge of the valve body. When the oxygen supply mode is the continuous mode, one end of the plurality of elastic top screws are clamped in the continuous mode groove, and when the oxygen supply mode is the pulse mode, one end of the plurality of elastic top screws are clamped in the pulse mode groove.

[0007] Furthermore, the side wall of the valve seat is provided with a first channel connected to the air inlet channel; when the adjusting ring is pushed to separate the valve seat from the valve stem, the first channel is connected to the air outlet channel, and when the adjusting ring is pulled to make the valve seat and the valve stem fit together, the first channel is disconnected from the air outlet channel.

[0008] Furthermore, the valve seat is provided with an accommodating cavity for accommodating the valve stem, and the valve stem is arranged in the accommodating cavity; the valve stem includes a first connecting rod and a second connecting rod, the first connecting rod is arranged on a side close to the elastic component, and the second connecting rod is arranged on a side close to an end surface of the adjusting ring, and the diameter of the first connecting rod is larger than the diameter of the second connecting rod; a sealing ring is provided at the edge position of the first connecting rod, and the sealing ring is arranged between the first channel and the air outlet channel.

[0009] Furthermore, the first connecting rod is provided with an elastic component groove for installing the elastic component, one end of the elastic component is arranged in the elastic component groove, and the other end abuts against the inner wall of the installation groove.

[0010] Furthermore, the end of the valve stem opposite to one end surface of the adjusting ring is a spherical structure.

[0011] Beneficial effect: The utility model provides an adjustment ring and an elastic switching component, so that the user can adjust the state of the elastic switching component by turning the adjustment ring, thereby controlling the on and off of the continuous channel to ultimately achieve the switching of the oxygen supply mode. The utility model makes the mode switching process more convenient and quick, and at the same time makes the overall appearance of the oxygen supply equipment more simple and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 It is a structural schematic diagram of an oxygen supply mode switching structure in the utility model;

[0014] Figure 2 This is an oxygen supply mode switching structure in the utility model Figure 1 Cross-sectional view at CC;

[0015] Figure 3 for Figure 2 A partial enlarged view of point B in the middle;

[0016] Figure 4This is an oxygen supply mode switching structure in the utility model Figure 1 Sectional view at DD.

[0017] In the figure: 1. valve body; 11. pulse channel; 12. air inlet channel; 13. air outlet channel; 14. elastic top screw; 2. adjustment ring; 21. continuous mode groove; 22. pulse mode groove; 3. elastic switching assembly; 31. valve seat; 311. first channel; 32. valve stem; 321. first connecting rod; 322. second connecting rod; 33. elastic component; A. sealing ring. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of 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.

[0019] This embodiment provides an oxygen supply mode switching structure, such as Figure 1 and Figure 2 As shown, it includes a valve body 1, an adjusting ring 2 and an elastic switching component 3; the valve body 1 is matched and installed on the inner side of the adjusting ring 2, and the valve body 1 is respectively provided with a pulse channel 11 and a continuous channel; the continuous channel includes an air inlet channel 12, a mounting groove and an air outlet channel 13 which are connected in sequence, and the elastic switching component 3 is arranged in the mounting groove; the elastic switching component 3 includes a valve seat 31, a valve stem 32 and an elastic component 33, the valve seat 31 is fixedly arranged in the mounting groove, the valve stem 32 is movably connected to the valve seat 31, and one end of the valve stem 32 is opposite to one end surface of the adjusting ring 2, and the other end abuts against the inner wall of the mounting groove through the elastic component 33, and the valve stem 32 is moved relative to the valve seat 31 by toggling the adjusting ring 2, so that the air inlet channel 12 is connected or disconnected with the air outlet channel 13, so as to realize the switching of the oxygen supply mode between the continuous mode and the pulse mode.

[0020] In a specific embodiment, Figure 4 As shown, the inner wall of the adjusting ring 2 is adjacently provided with a continuous mode groove 21 and a pulse mode groove 22 along the axial direction of the adjusting ring 2, and a plurality of elastic top screws 14 are provided at the edge of the valve body 1. When the oxygen supply mode is the continuous mode, one end of the plurality of elastic top screws 14 is clamped in the continuous mode groove 21, and when the oxygen supply mode is the pulse mode, one end of the plurality of elastic top screws 14 is clamped in the pulse mode groove 22.

[0021] Specifically, in this embodiment, corresponding continuous mode grooves 21 and pulse mode grooves 22 are respectively set according to the continuous mode and the pulse mode, and the continuous mode grooves 21 and the pulse mode grooves 22 are both set around the whole week. In practice, multiple grooves can be set accordingly as needed for switching more oxygen supply modes.

[0022] Specifically, in the present embodiment, preferably, the number of the elastic top screws is four, and grooves for installing the elastic top screws are machined in the valve body 1, so that the elastic top screws 14 are symmetrically arranged in pairs in the valve body 1, and the valve body 1 is installed on the inner side of the adjusting ring 2 by the elastic deformation characteristics of the elastic top screws. This structure facilitates installation operation; at the same time, when the oxygen supply mode is switched, the elastic top screw 14 matches the continuous mode groove 21 or the pulse mode groove 22, so as to play a role in fixing the mode and ensure the stability of the equipment operation. For example, when the oxygen supply mode is the continuous mode, the elastic component 33 is in a compressed state, and an elastic force is generated to push the valve stem 32 to fit the valve seat 31. At this time, in order to maintain the continuous mode, the elastic top screw 14 is stuck in the continuous mode groove 21 to ensure that the oxygen supply mode is the continuous mode; when the oxygen supply mode is the pulse mode, the elastic top screw 14 is stuck in the pulse mode groove 22, which can maintain the pulse mode while ensuring the stable installation of the adjusting ring 2.

[0023] In a specific embodiment, the side wall of the valve seat 31 is provided with a first channel 311 connected to the air inlet channel 12; when the adjustment ring 2 is pushed to separate the valve seat 31 from the valve stem 32, the first channel 311 is connected to the air outlet channel 13, and when the adjustment ring 2 is pulled to fit the valve seat 31 to the valve stem 32, the first channel 311 is disconnected from the air outlet channel 13. Specifically, the side wall of the valve seat 31 can be provided with multiple channels to ensure that the first channel connected to the air inlet channel 12 is easier to form during installation.

[0024] Specifically, the working process of this embodiment includes: 1) when the adjusting ring 2 is pushed in the direction close to the valve body 1, that is, when the oxygen supply mode is the continuous mode, the end face of the adjusting ring 2 abuts against one end of the valve stem 32, thereby pushing the valve stem 32 to be separated from the inner wall of the valve seat 31, so that the first channel 311 and the gas outlet channel 13 are connected. In this mode, the gas can enter the pulse channel 11 and the continuous channel at the same time. At this time, the elastic component 33 is in a compressed state, and the elastic top screw 14 is clamped in the continuous mode groove 21; 2) when the adjusting ring 2 is pulled in the direction away from the valve body 1, that is, when the oxygen supply mode is the pulse mode, due to the elastic force of the elastic component 33, the valve stem 32 is pushed to be in a state of being in contact with the inner wall of the valve seat 31, so that the first channel 311 and the gas outlet channel 13 are disconnected, and the gas can only enter the pulse channel 11, and the elastic top screw 14 is clamped in the pulse mode groove 22. Therefore, by turning the adjusting ring 2, the switching between the continuous mode and the pulse mode can be achieved.

[0025] Specifically, in this embodiment, the elastic component 33 is a spring.

[0026] In a specific embodiment, Figure 3 As shown, the valve seat 31 is provided with an accommodating cavity for accommodating the valve stem 32, and the valve stem 32 is arranged in the accommodating cavity; the valve stem 32 includes a first connecting rod 321 and a second connecting rod 322, the first connecting rod 321 is arranged on a side close to the elastic component 33, and the second connecting rod 322 is arranged on a side close to an end surface of the adjusting ring 2, and the diameter of the first connecting rod 321 is greater than the diameter of the second connecting rod 322; a sealing ring A is provided at the edge position of the first connecting rod 321, and the sealing ring A is arranged between the first channel 311 and the air outlet channel 13.

[0027] Specifically, Figure 3 As shown, the diameter of the first connecting rod 321 gradually decreases towards the direction approaching the second connecting rod 322, and a groove for installing the sealing ring A is provided at the edge of the first connecting rod 321, and the sealing ring A is installed in the groove, wherein the sealing ring A is an O-ring; when in the pulse mode, the first connecting rod 321 fits with the inner wall of the valve seat 31 through the O-ring, and the part where the valve seat 31 fits with the O-ring is a conical structure, so that the O-ring can better fit with the inner wall of the valve seat 31, thereby more effectively sealing and preventing gas from flowing from the first channel 311 to the outlet channel 13; at the same time, in this embodiment, a sealing ring is provided between the second connecting rod 322 and the valve seat 31, which is used to prevent gas from flowing out from the gap between the valve seat 31 and the second connecting rod 322, thereby avoiding gas loss and waste.

[0028] In a specific embodiment, the first connecting rod 321 is provided with an elastic component groove for installing the elastic component 33. One end of the elastic component 33 is arranged in the elastic component groove, and the other end abuts against the inner wall of the installation groove. Specifically, the elastic component groove can limit the position of the elastic component 33, while ensuring uniform force, so as to better realize the switching operation of the oxygen supply mode.

[0029] In a specific embodiment, the end of the valve stem 32 opposite to one end surface of the adjustment ring 2 is a spherical structure. Specifically, this structure can ensure that when the adjustment ring 2 pushes the valve stem 32, the valve stem 32 is more evenly stressed, thereby making it easier to adjust the oxygen supply mode.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An oxygen supply mode switching structure, characterized in that: It comprises a valve body (1), an adjusting ring (2) and an elastic switching component (3); The valve body (1) is matched and mounted on the inner side of the adjusting ring (2), and the valve body (1) is provided with a pulse channel (11) and a continuous channel respectively; the continuous channel comprises an air inlet channel (12), an installation groove and an air outlet channel (13) which are connected in sequence, and the elastic switching component (3) is arranged in the installation groove; The elastic switching assembly (3) comprises a valve seat (31), a valve stem (32) and an elastic component (33); the valve seat (31) is fixedly arranged in the mounting groove; the valve stem (32) is movably connected to the valve seat (31); one end of the valve stem (32) is opposite to one end surface of the adjusting ring (2); the other end is in contact with the inner wall of the mounting groove through the elastic component (33); the valve stem (32) is moved relative to the valve seat (31) by moving the adjusting ring (2), thereby connecting or disconnecting the air inlet channel (12) and the air outlet channel (13), so as to realize the switching of the oxygen supply mode between the continuous mode and the pulse mode.

2. The oxygen supply mode switching structure according to claim 1, characterized in that: The inner wall of the adjusting ring (2) is provided with a continuous mode groove (21) and a pulse mode groove (22) adjacent to each other along the axial direction of the adjusting ring (2); a plurality of elastic top screws (14) are provided at the edge of the valve body (1); when the oxygen supply mode is the continuous mode, one end of the plurality of elastic top screws (14) is clamped in the continuous mode groove (21); when the oxygen supply mode is the pulse mode, one end of the plurality of elastic top screws (14) is clamped in the pulse mode groove (22).

3. The oxygen supply mode switching structure according to claim 2, characterized in that: A first channel (311) communicating with the air inlet channel (12) is provided on a side wall of the valve seat (31); When the adjusting ring (2) is pushed to separate the valve seat (31) from the valve stem (32), the first channel (311) is connected to the air outlet channel (13); when the adjusting ring (2) is pulled to fit the valve seat (31) to the valve stem (32), the first channel (311) is disconnected from the air outlet channel (13).

4. The oxygen supply mode switching structure according to claim 3, characterized in that: The valve seat (31) is provided with a receiving cavity for receiving the valve stem (32), and the valve stem (32) is arranged in the receiving cavity; The valve stem (32) comprises a first connecting rod (321) and a second connecting rod (322), wherein the first connecting rod (321) is arranged on a side close to the elastic component (33), and the second connecting rod (322) is arranged on a side close to an end surface of the adjusting ring (2), and the diameter of the first connecting rod (321) is greater than the diameter of the second connecting rod (322); A sealing ring (A) is provided at the edge of the first connecting rod (321), and the sealing ring (A) is arranged between the first channel (311) and the air outlet channel (13).

5. The oxygen supply mode switching structure according to claim 4, characterized in that: The first connecting rod (321) is provided with an elastic component groove for installing the elastic component (33); one end of the elastic component (33) is arranged in the elastic component groove, and the other end abuts against the inner wall of the installation groove.

6. The oxygen supply mode switching structure according to claim 1, characterized in that: The end of the valve stem (32) opposite to one end surface of the adjustment ring (2) is a spherical structure.

Images