Stepless regulation structure for oxygen supply flow

Abstract

The utility model discloses an oxygen supply flow stepless adjusting structure which comprises a valve body, an adjusting ring and an elastic flow adjusting assembly. The valve body is installed on the inner side of the adjusting ring in a matched mode, the valve body is sequentially provided with an air inlet channel, a buffering cavity and an air outlet channel which communicate with one another, the elastic flow adjusting assembly is arranged in the buffering cavity, one end of the elastic flow adjusting assembly abuts against the inner wall of the adjusting ring, and the other end of the elastic flow adjusting assembly abuts against the inner wall of the adjusting ring. The other end of the elastic flow adjusting assembly is opposite to an air outlet of the air outlet channel, when the adjusting ring is rotated, the elastic flow adjusting assembly is close to or away from the air outlet of the air outlet channel, and then the opening degree of the air outlet of the air outlet channel is adjusted to achieve stepless adjustment of the oxygen supply flow. The oxygen supply flow is adjusted by arranging the adjusting ring, the oxygen supply flow can be adjusted by directly rotating the adjusting ring, the problem that the adjusting mode is complex and inconvenient is solved, and it is guaranteed that the oxygen concentration can be adjusted in time according to the body recovery condition of a patient.

Description

Technical Field

[0001] The utility model relates to the technical field of gas flow limiting valves, in particular to a stepless regulation structure for oxygen supply flow. Background Art

[0002] At present, most of the gas flow limiting valves on the market adopt a needle valve structure, and the needle valve structure is generally set inside the oxygen supply device. It is set by the technicians before leaving the factory and then provided to the users. When adjustment is needed later, the technicians need to be contacted or the users need to use tools such as screwdrivers to adjust the oxygen flow. However, due to the complicated adjustment method and inconvenient operation, it cannot meet the needs of users to adjust the flow in a timely and convenient manner. Therefore, there is an urgent need for an oxygen flow adjustment structure that allows users to adjust the oxygen flow conveniently and quickly during the oxygen supply process. Utility Model Content

[0003] The utility model provides an oxygen supply flow rate stepless regulating structure to overcome the technical problems of the existing regulating structure having a complex regulating mode and inconvenient operation.

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

[0005] A stepless oxygen supply flow adjustment structure comprises a valve body, an adjustment ring and an elastic flow adjustment component; the valve body is matched and installed on the inner side of the adjustment ring, and the valve body is provided with an air inlet channel, a buffer cavity and an air outlet channel which are connected in sequence, the elastic flow adjustment component is arranged in the buffer cavity, and one end of the elastic flow adjustment component abuts against the inner wall of the adjustment ring, and the other end of the elastic flow adjustment component is opposite to the air outlet of the air outlet channel, when the adjustment ring is rotated, the elastic flow adjustment component approaches or moves away from the air outlet of the air outlet channel, thereby adjusting the opening size of the air outlet of the air outlet channel to realize stepless regulation of the oxygen supply flow.

[0006] Furthermore, the elastic flow regulating assembly includes a flow regulating valve seat, a flow regulating valve stem and an elastic component; the flow regulating valve seat is fixedly arranged in the buffer cavity, and is provided with a accommodating cavity for installing the flow regulating valve stem, and the flow regulating valve stem is arranged in the accommodating cavity; the inner wall of the adjusting ring is provided with an adjusting groove all around, and the axis A of the adjusting ring is different from the axis B of the adjusting groove, one end of the flow regulating valve stem is matched and arranged in the adjusting groove, and the other end is sleeved with the elastic component, and one end of the elastic component is in contact with the valve body.

[0007] Furthermore, the flow regulating valve stem includes a first connecting rod and a second connecting rod connected in sequence, the first connecting rod is arranged on a side close to the air outlet channel and is sleeved with the elastic component, the diameter of the first connecting rod at one end close to the air outlet channel is smaller than the diameter of the air outlet channel, and the diameter of the first connecting rod at one end away from the air outlet channel is larger than the diameter of the air outlet channel; the second connecting rod is arranged on a side close to the adjusting ring, and the second connecting rod is provided with a clamping ring, the flow regulating valve seat is provided with a corresponding clamping groove, and the second connecting rod is matched and clamped with the flow regulating valve seat.

[0008] Furthermore, one end of the first connecting rod close to the air outlet channel is a cone structure.

[0009] Furthermore, one end of the second connecting rod disposed in the adjusting groove is a spherical structure.

[0010] Beneficial effect: The utility model adjusts the oxygen supply flow rate by setting an adjustment ring. The oxygen supply flow rate can be adjusted by directly rotating the adjustment ring, which solves the problem of complex and inconvenient adjustment methods and ensures that the oxygen concentration can be adjusted in time according to the patient's physical recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] 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.

[0012] Figure 1 It is a structural schematic diagram of a stepless regulation structure of oxygen supply flow in the utility model;

[0013] Figure 2 This is a front view of a stepless oxygen supply flow rate adjustment structure in the utility model;

[0014] Figure 3 This is a stepless oxygen flow regulation structure in the utility model. Figure 1 Section view at AA;

[0015] Figure 4 A schematic diagram of the gas flow direction of an oxygen supply flow stepless adjustment structure in the utility model;

[0016] Figure 5 The utility model is a schematic diagram of the axis position of the adjustment ring and the adjustment groove of the oxygen supply flow stepless adjustment structure.

[0017] In the figure: 1. valve body; 11. air inlet channel; 12. air outlet channel; 2. adjusting ring; 21. adjusting groove; 3. elastic flow regulating component; 31. flow regulating valve seat; 32. flow regulating valve stem; 321. first connecting rod; 322. second connecting rod; 33. elastic component; 4. oxygen supply component; A. axis of adjusting ring; B. axis of adjusting groove. 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 of 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 a stepless oxygen flow adjustment structure. Figures 1 to 4 As shown, it includes a valve body 1, an adjusting ring 2 and an elastic flow regulating 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 provided with an air inlet channel 11, a buffer cavity and an air outlet channel 12 which are connected in sequence, the elastic flow regulating component 3 is arranged in the buffer cavity, and one end of the elastic flow regulating component 3 abuts against the inner wall of the adjusting ring 2, and the other end of the elastic flow regulating component 3 is opposite to the air outlet of the air outlet channel 12. When the adjusting ring 2 is rotated, the elastic flow regulating component 3 approaches or moves away from the air outlet of the air outlet channel 12, thereby adjusting the opening size of the air outlet of the air outlet channel 12 to realize stepless regulation of the oxygen supply flow rate.

[0020] In a specific embodiment, the elastic flow regulating assembly 3 includes a flow regulating valve seat 31, a flow regulating valve stem 32 and an elastic component 33; the flow regulating valve seat 31 is fixedly arranged in the buffer cavity, and is provided with an accommodating cavity for installing the flow regulating valve stem 32, and the flow regulating valve stem 32 is arranged in the accommodating cavity; the inner wall of the adjusting ring 2 is provided with an adjusting groove 21 all around, and the axis A of the adjusting ring 2 is different from the axis B of the adjusting groove 21, one end of the flow regulating valve stem 32 is matched and arranged in the adjusting groove 21, and the other end is sleeved with the elastic component 33, and one end of the elastic component 33 is in contact with the valve body 1. Specifically, in this embodiment, the flow regulating valve seat 31 is fixedly arranged in the buffer cavity by threaded connection, and the flow regulating valve seat 31 and the flow regulating valve stem 32 are both provided with grooves for installing sealing rings, which are used to install sealing rings to prevent gas from flowing out from the gap between the flow regulating valve seat 31 and the buffer cavity and the gap between the flow regulating valve seat 31 and the flow regulating valve stem 32.

[0021] Specifically, in this embodiment, a buffer cavity is provided between the air inlet channel 11 and the air outlet channel 12, and an elastic flow regulating component 3 is provided in the buffer cavity. Initially, the air outlet opening of the air outlet channel 12 is the largest. Figure 5 As shown, in this embodiment, by symmetrically processing a groove with a gradual depth on the inner wall of the adjusting ring 2, the axis A of the adjusting ring 2 is different from the axis B of the adjusting groove 21, thereby achieving the purpose of adjusting the oxygen supply flow by rotating the adjusting ring 2. The specific working process is that when the adjusting ring 2 is rotated to make the axis B of the adjusting groove 21 move in the direction close to the axis A, the adjusting ring 2 will push the regulating valve stem 32 to gradually approach the air outlet of the air outlet channel 12, thereby reducing the air outlet opening of the air outlet channel 12, so that the supply flow is gradually reduced, and the elastic component 33 is in a compressed state at this time; when the adjusting ring 2 is rotated to make the axis B of the adjusting groove 21 move in the direction away from the axis A, the elastic force generated by the elastic component 33 will push the regulating valve stem 32 to gradually move away from the air outlet of the air outlet channel 12, thereby increasing the air outlet opening of the air outlet channel 12, so that the supply flow is gradually increased. Through this structure, the oxygen supply flow can be steplessly adjusted according to actual needs, and it is convenient and quick.

[0022] Specifically, in this embodiment, the elastic component 33 is a spring.

[0023] In a specific embodiment, the flow regulating valve rod 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 air outlet channel 12, and is sleeved with the elastic component 33, the diameter of the first connecting rod close to the air outlet channel 12 is smaller than the diameter of the air outlet channel 12, and the diameter of the first connecting rod away from the air outlet channel 12 is larger than the diameter of the air outlet channel 12; the second connecting rod 322 is arranged on a side close to the adjusting ring 2, and the second connecting rod 322 is provided with a clamping ring, the flow regulating valve seat 31 is provided with a corresponding clamping groove, and the second connecting rod 322 is matched and clamped with the flow regulating valve seat 31.

[0024] In a specific embodiment, one end of the first connecting rod 321 close to the air outlet channel 12 is set as a cone structure, and the opening size of the air outlet of the air outlet channel 12 is controlled by adjusting the relative position of the cone structure and the air outlet channel.

[0025] In a specific embodiment, one end of the second connecting rod 322 disposed in the adjustment groove 21 is a spherical structure. Specifically, in this embodiment, the adjustment groove 21 is an arc-shaped groove, so a spherical structure matching the arc-shaped groove is correspondingly provided to achieve a smoother adjustment process.

[0026] 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 flow rate stepless adjustment structure, characterized in that: It comprises a valve body (1), an adjusting ring (2) and an elastic flow regulating component (3); The valve body (1) is matched and mounted on the inner side of the adjustment ring (2), and the valve body (1) is provided with an air inlet channel (11), a buffer chamber and an air outlet channel (12) which are connected in sequence. The elastic flow regulating component (3) is arranged in the buffer chamber, and one end of the elastic flow regulating component (3) is in contact with the inner wall of the adjustment ring (2), and the other end of the elastic flow regulating component (3) is opposite to the air outlet of the air outlet channel (12). When the adjustment ring (2) is rotated, the elastic flow regulating component (3) approaches or moves away from the air outlet of the air outlet channel (12), thereby adjusting the opening size of the air outlet of the air outlet channel (12) to achieve stepless regulation of the oxygen supply flow rate.

2. The oxygen supply flow rate stepless adjustment structure according to claim 1 is characterized in that: The elastic flow regulating assembly (3) comprises a flow regulating valve seat (31), a flow regulating valve stem (32) and an elastic component (33); The flow regulating valve seat (31) is fixedly arranged in the buffer cavity, and is provided with a receiving cavity for installing the flow regulating valve stem (32), and the flow regulating valve stem (32) is arranged in the receiving cavity; The inner wall of the adjusting ring (2) is provided with an adjusting groove (21) throughout its entire circumference, and the axis A of the adjusting ring (2) is different from the axis B of the adjusting groove (21); one end of the flow regulating valve stem (32) is matchedly arranged in the adjusting groove (21), and the other end is sleeved with the elastic component (33), and one end of the elastic component (33) is in contact with the valve body (1).

3. The oxygen supply flow rate stepless adjustment structure according to claim 2 is characterized in that: The flow regulating valve rod (32) comprises a first connecting rod (321) and a second connecting rod (322) which are connected in sequence, the first connecting rod (321) being arranged on a side close to the air outlet channel (12) and being sleeved with the elastic component (33), the diameter of an end of the first connecting rod close to the air outlet channel (12) being smaller than the diameter of the air outlet channel (12), and the diameter of an end of the first connecting rod away from the air outlet channel (12) being larger than the diameter of the air outlet channel (12); The second connecting rod (322) is arranged on a side close to the adjusting ring (2), and the second connecting rod (322) is provided with a clamping ring, and the flow regulating valve seat (31) is provided with a corresponding clamping groove, and the second connecting rod (322) is matched and clamped with the flow regulating valve seat (31).

4. The oxygen supply flow rate stepless adjustment structure according to claim 3 is characterized in that: One end of the first connecting rod (321) close to the air outlet channel (12) is a cone structure.

5. The oxygen supply flow rate stepless adjustment structure according to claim 4 is characterized in that: One end of the second connecting rod (322) disposed in the adjusting groove (21) is a spherical structure.

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