Gas circuit connector of vehicle-mounted oxygenerator
By designing a gas circuit joint for vehicle-mounted oxygen generators, using the reduced-diameter step pipe structure and moving valve body, limit block and other components, the problem of gaps and opening and closing abnormalities in the prior art during vibration and temperature changes is solved, and better sealing and shock resistance are achieved, ensuring the stability of oxygen supply and the cleaning of the gas circuit.
Patent Information
- Application Number
- CN202520502940.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2035-03-21
AI Technical Summary
The existing vehicle-mounted oxygen generator gas circuit joints are prone to gaps when the vehicle vibrates and changes in temperature, resulting in oxygen leakage. Continuous vibration in the vehicle-mounted environment will cause the internal moving parts of the gas circuit joint to be displaced or loosened, resulting in abnormal opening and closing, and even the gas circuit is blocked.
A gas circuit joint of an on-board oxygen generator is designed, including a first joint and a second joint. The first joint is connected to the second joint, and the reduction-diameter step pipe structure and components such as the moving valve body and limiting block are used to achieve sealing effect and shock resistance.
This design improves the sealing effect and shock resistance of the gas circuit joints, ensures stable oxygen supply from the vehicle's on-board oxygen generator, and can keep the oxygen outlet in the vehicle closed when used alone, prevent dust and mosquitoes from entering, and ensures the cleanliness of the gas circuit.
Smart Images
Figure CN222798401U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of pipeline parts and components, and in particular relates to a gas circuit connector of a vehicle-mounted oxygen concentrator. Background Art
[0002] As a vehicle-mounted medical or health care device, the stability of the gas circuit of the vehicle-mounted oxygen concentrator directly affects the oxygen supply effect and safety. The gas circuit connector serves to connect the vehicle-mounted oxygen concentrator with the oxygen outlet connection port in the vehicle.
[0003] The gas circuit connectors of existing vehicle-mounted oxygen concentrators generally have the following problems: gaps are prone to appear when the vehicle vibrates or the temperature changes, resulting in oxygen leakage, especially under high-pressure conditions, where the risk of sealing failure is significant; continuous vibration in the vehicle environment can also cause the internal movable parts of the gas circuit connector to shift or loosen, resulting in abnormal opening and closing, or even gas circuit blockage. When the vehicle-mounted oxygen concentrator needs to be repaired or needs to be used alone, dust and mosquitoes will enter the gas circuit, seriously affecting the cleanliness of the gas circuit. The above problems will affect the oxygen supply effect. Utility Model Content
[0004] The utility model aims at the above problems, makes up for the deficiencies of the prior art, and provides a gas circuit connector for a vehicle-mounted oxygen concentrator, comprising a first connector and a second connector; the first connector and the second connector are matched and docked;
[0005] The first joint comprises a first valve head, a first connecting component, a first flange, and a connecting pipe which are fixedly connected in sequence; an air intake passage is arranged inside the first joint; the side surface of the first valve head is a conical surface, a vent hole is arranged on the first valve head, and the maximum outer diameter of the first valve head is equal to the outer diameter of the first connecting component; the outer diameter of the first connecting component is smaller than the outer diameter of the first flange;
[0006] The second joint is a step-tube with a different diameter, which is formed by connecting the first valve wall and the second valve wall, and the inner diameter of the first valve wall is smaller than the inner diameter of the second valve wall; a movable valve body and a limit block are arranged in the second joint; the limit block is fixed inside the valve wall, and a hollow through hole is arranged inside the limit block; the movable valve body comprises a second valve head, a second connecting component, a second flange, a clamping ring, and a valve stem which are fixedly connected in sequence, and a spring is arranged on the outer side of the clamping ring and the valve stem; the side surface of the second valve head is a conical surface, the minimum diameter of the second valve head is smaller than the inner diameter of the first valve wall, and the maximum diameter of the second valve head is equal to the inner diameter of the first valve wall; the valve stem is arranged in the hollow through hole of the limit block; the outer diameter of the second flange is smaller than the inner diameter of the second valve wall and larger than the inner diameter of the first valve wall;
[0007] The maximum outer diameter of the first valve head is equal to the inner diameter of the first valve wall.
[0008] Preferably, a first groove is provided on the first connecting component, and a sealing ring is provided in the first groove.
[0009] Preferably, a second groove is provided on the second connecting component, and a sealing ring is provided in the second groove.
[0010] Preferably, the number of the vent hole is at least one.
[0011] Preferably, the outer diameter of the first flange is greater than the outer diameter of the connecting pipe.
[0012] Preferably, the inner wall of the second valve wall is provided with an internal thread.
[0013] Preferably, an outer wall of the first valve wall is provided with an external thread.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] The utility model provides an air path connector for a vehicle-mounted oxygen concentrator, which is connected to a first connector and a second connector for use, has good sealing effect and good anti-vibration effect, can ensure stable oxygen supply of the vehicle-mounted oxygen concentrator, and can also meet the requirement that the oxygen outlet connection port in the vehicle remains in a closed state after the vehicle-mounted oxygen concentrator is used alone, and can be disassembled flexibly. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The utility model is a three-dimensional structural schematic diagram of a gas circuit connector of a vehicle-mounted oxygen concentrator.
[0017] Figure 2 The utility model is a structural schematic diagram of a first joint of a gas circuit joint of a vehicle-mounted oxygen concentrator.
[0018] Figure 3 It is a structural schematic diagram when the first joint is separated from the second joint.
[0019] Figure 4 It is a structural schematic diagram of the first joint and the second joint being mated with each other.
[0020] In the figure: 1 is the first joint, 2 is the second joint, 101 is the first valve head, 102 is the first connecting part, 103 is the sealing ring, 104 is the first flange, 105 is the first connecting pipe, 106 is the second connecting pipe, 107 is the air intake passage, 108 is the vent, 201 is the first valve wall, 202 is the second valve wall, 203 is the limit block, 204 is the second valve head, 205 is the second connecting part, 206 is the second flange, 207 is the retaining ring, 208 is the valve stem, and 209 is the spring. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.
[0022] Reference Figures 1 to 4 , a gas circuit connector of a vehicle-mounted oxygen concentrator, comprising a first connector 1 and a second connector 2; the first connector 1 and the second connector 2 are docked with each other.
[0023] like Figure 2 As shown, from right to left, the first joint 1 includes a first valve head 101, a first connecting component 102, a first flange 104, and a connecting pipe that are fixedly connected in sequence, and the connecting pipe includes a first connecting pipe 105 and a second connecting pipe 106; an air intake passage 107 is arranged inside the first joint 1; the side surface of the first valve head 101 is a conical surface, and a vent hole 108 is arranged on the first valve head 101; the maximum outer diameter of the first valve head 101 is equal to the outer diameter of the first connecting component 102; the outer diameter of the first connecting component 102 is smaller than the outer diameter of the first flange 104;
[0024] The second joint 2 is a step-tube with a different diameter, which is formed by connecting the first valve wall 201 and the second valve wall 202. The inner diameter of the first valve wall 201 is smaller than the inner diameter of the second valve wall 202. A movable valve body and a limit block 203 are arranged in the second joint 2. The limit block 203 is fixed inside the second joint 2, and a hollow through hole is arranged inside the limit block 203. The movable valve body includes a second valve head 204, a second connecting component 205, a second flange 206, a retaining ring 207, and a valve stem 208 which are fixedly connected in sequence. A spring 209 is arranged on the outer side of the retaining ring 207 and the valve stem 208. The side surface of the second valve head 204 is a conical surface. The minimum diameter of the second valve head 204 is smaller than the inner diameter of the first valve wall 201, and the maximum diameter of the second valve head 204 is equal to the inner diameter of the first valve wall 201. The valve stem 208 is arranged in the hollow through hole of the limit block 203, combined with Figure 3 and Figure 4 It can be seen that the valve stem 208 can move left and right in the hollow through hole of the stop block 203; the outer diameter of the second flange 206 is smaller than the inner diameter of the second valve wall 202 and larger than the inner diameter of the first valve wall 201. Due to the size of the second flange 206, when the first joint 1 is not inserted into the first valve wall 201, the second flange 206 can block the oxygen outlet;
[0025] The maximum outer diameter of the first valve head 101 is equal to the inner diameter of the first valve wall 201 .
[0026] Specifically, a first groove is provided on the first connecting member 102, and a sealing ring 103 is provided in the first groove. The sealing ring 103 is provided here for the purpose of better sealing.
[0027] Specifically, a second groove is provided on the second connecting component 205 , and a sealing ring 103 is provided in the second groove.
[0028] Specifically, the number of the vent holes 108 is four.
[0029] Specifically, the outer diameter of the first flange 104 is greater than the outer diameter of the first connecting pipe 105, and the outer diameter of the first connecting pipe 105 is greater than the outer diameter of the second connecting pipe 106. The purpose of this arrangement is to better connect with the vehicle-mounted oxygen concentrator.
[0030] Specifically, the inner wall of the second valve wall 202 is provided with an internal thread, and the outer wall of the first valve wall 201 is provided with an external thread. The purpose of such arrangement is to connect with the oxygen outlet connection port in the vehicle.
[0031] The working process of the utility model is as follows:
[0032] The connecting pipe of the first connector 1 is connected to the vehicle-mounted oxygen concentrator, and the second valve wall 202 of the second connector 2 is connected to the oxygen outlet connection port in the vehicle. The first connector 1 is connected to the second connector 2, and the first valve head 101 and the first connecting component 102 are inserted into the first valve wall 201. The sum of the lengths of the first valve head 101 and the first connecting component 102 is equal to or greater than the length of the first valve wall 201. The movable valve body moves toward the limit block 203, and the spring 209 is compressed. The oxygen produced by the vehicle-mounted oxygen concentrator enters the air intake passage 107, enters the second valve wall 202 through the vent 108, and finally delivers the oxygen to the oxygen outlet connection port in the vehicle.
[0033] When the vehicle-mounted oxygen concentrator needs to be repaired or used alone, the first connector 1 is unplugged, the spring 209 is opened, the second valve head 204 enters the first valve wall 201, and the sealing ring 103 is pressed by the second flange 206 to block the oxygen outlet connection port in the vehicle, so that the air path in the vehicle remains closed. The closing of the air path in the vehicle prevents dust and mosquitoes from entering, ensuring the cleanliness of the air path.
[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A gas circuit connector for a vehicle-mounted oxygen concentrator, characterized in that: It comprises a first joint (1) and a second joint (2); the first joint (1) and the second joint (2) are mated with each other; The first joint (1) comprises a first valve head (101), a first connecting component (102), a first flange (104), and a connecting pipe which are fixedly connected in sequence; an air intake passage (107) is arranged inside the first joint (1); the side surface of the first valve head (101) is a conical surface, and a vent hole (108) is arranged on the first valve head (101); the maximum outer diameter of the first valve head (101) is equal to the outer diameter of the first connecting component (102); and the outer diameter of the first connecting component (102) is smaller than the outer diameter of the first flange (104); The second joint (2) is a stepped pipe with a different diameter, the stepped pipe with a different diameter being formed by connecting a first valve wall (201) and a second valve wall (202), the inner diameter of the first valve wall (201) being smaller than the inner diameter of the second valve wall (202); a movable valve body and a limit block (203) are arranged in the second joint (2); the limit block (203) is fixed in the second joint (2), and a hollow through hole is arranged in the limit block (203); the movable valve body comprises a second valve head (204), a second connecting component (205), a second flange (206), which are fixedly connected in sequence A clamping ring (207) and a valve stem (208), wherein a spring (209) is arranged on the outer sides of the clamping ring (207) and the valve stem (208); the side surface of the second valve head (204) is a conical surface, the minimum diameter of the second valve head (204) is smaller than the inner diameter of the first valve wall (201), and the maximum diameter of the second valve head (204) is equal to the inner diameter of the first valve wall (201); the valve stem (208) is arranged in the hollow through hole of the limit block (203); the outer diameter of the second flange (206) is smaller than the inner diameter of the second valve wall (202) and larger than the inner diameter of the first valve wall (201); The maximum outer diameter of the first valve head (101) is equal to the inner diameter of the first valve wall (201).
2. The gas circuit connector of a vehicle-mounted oxygen concentrator according to claim 1, characterized in that: A first groove is provided on the first connecting component (102), and a sealing ring (103) is provided in the first groove.
3. The gas circuit connector of a vehicle-mounted oxygen concentrator according to claim 1, characterized in that: A second groove is provided on the second connecting component (205), and a sealing ring (103) is provided in the second groove.
4. The gas circuit connector of a vehicle-mounted oxygen concentrator according to claim 1, characterized in that: The number of the vent hole (108) is at least one.
5. The gas circuit connector of a vehicle-mounted oxygen concentrator according to claim 1, characterized in that: The outer diameter of the first flange (104) is greater than the outer diameter of the connecting pipe.
6. The gas circuit connector of a vehicle-mounted oxygen concentrator according to claim 1, characterized in that: The inner wall of the second valve wall (202) is provided with an internal thread.
7. The gas circuit connector of a vehicle-mounted oxygen concentrator according to claim 1, characterized in that: The outer wall of the first valve wall (201) is provided with an external thread.