Gas circuit switch

Abstract

The utility model discloses a gas circuit switch. The gas circuit switch comprises a cylinder body, a gas inlet pipe, a gas outlet pipe, a valve core and a control assembly. The barrel is of a barrel-shaped structure with openings in the two ends, the air inlet pipe is connected to the opening in one end of the barrel and used for being connected with an air supply device, the air outlet pipe is connected to the side wall of the barrel and communicated with the inner side of the barrel, and the air outlet pipe is used for enabling air to flow out. The valve element is used for moving in the barrel to close or open the communicating position of the air outlet pipe and the barrel, the control assembly is connected to the end, away from the air inlet pipe, of the valve element, and the switch is used for controlling the valve element to move in the barrel. The valve element is controlled by the control assembly to move in the barrel so as to adjust the opening or closing state of the air outlet pipe, the overall structure is simple, and control by operators is facilitated.

Description

Technical Field

[0001] This utility model relates to a switching device, and more particularly to a pneumatic circuit switch. Background Technology

[0002] In related technologies, many medical devices involve providing patients with oxygen or other medical gases. During treatment or recuperation, it is often necessary to control the opening and closing of the gas circuit to meet the different needs of patients. Therefore, a simple and easy-to-operate control switch is needed to meet the needs of controlling the gas circuit. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a pneumatic circuit switch to improve the simplicity of the pneumatic circuit switch structure and the ease of operation.

[0004] The pneumatic switch according to a first aspect embodiment of the present invention includes:

[0005] The cylindrical body has a cylindrical structure with openings at both ends;

[0006] An air inlet pipe is connected to the opening at one end of the cylinder, and the air inlet pipe is used to connect to an air supply device;

[0007] An exhaust pipe is connected to the side wall of the cylinder and communicates with the inside of the cylinder. The exhaust pipe is used to allow gas to flow out.

[0008] A valve core is slidably disposed inside the cylinder, and the valve core is used to move inside the cylinder to close or open the connection between the air outlet pipe and the cylinder.

[0009] A control component is connected to the end of the valve core away from the air inlet pipe, and the switch is used to control the movement of the valve core within the cylinder.

[0010] The gas circuit switch according to the embodiment of this utility model has at least the following beneficial effects: the valve core is controlled to move in the cylinder by the control component to adjust the opening or closing state of the gas outlet pipe. The overall structure is simple and easy for operators to control.

[0011] According to some embodiments of the present invention, the control component includes a V-shaped member, which is rotatably disposed, and the V-shaped member includes a protruding end, wherein the protruding end is provided with an adjacent first arc-shaped groove and a second arc-shaped groove;

[0012] The control component also includes a ball bearing that abuts against the end of the valve core away from the intake pipe, and the ball bearing also abuts against the first arc-shaped groove or the second arc-shaped groove.

[0013] According to some embodiments of the present invention, the pneumatic switch further includes a first assembly plate, and the V-shaped component is rotatably connected to one side of the first assembly plate.

[0014] According to some embodiments of the present invention, the distance between the center of the first arc-shaped groove and the rotation center of the V-shaped member is greater than the distance between the center of the second arc-shaped groove and the rotation center of the V-shaped member.

[0015] According to some embodiments of the present invention, the air circuit switch further includes a second mounting plate, which is sleeved on the side of the cylinder away from the air inlet pipe. The second mounting plate is provided with abutment rods, which are spaced apart on both sides of the cylinder and are used to abut against the control component.

[0016] According to some embodiments of the present invention, the valve core is provided with a groove at the end away from the air intake pipe, the opening end of the groove is disposed on the side opposite to the air intake pipe, and the ball is disposed in the groove.

[0017] According to some embodiments of the present invention, an assembly groove is provided inside the cylinder, and an abutment spring is provided inside the assembly groove. The abutment spring abuts against the valve core inside the assembly groove.

[0018] According to some embodiments of the present invention, the valve core is provided with sealing grooves at intervals, and a sealing ring is assembled in the sealing groove. The sealing ring abuts against the inner side wall of the cylinder, and the sealing grooves are provided at intervals on both sides of the air outlet pipe.

[0019] According to some embodiments of this utility model, an air chamber is provided on the side of the air inlet pipe near the cylinder, and the inner diameter of the cylinder is smaller than the inner diameter of the air chamber.

[0020] According to some embodiments of this utility model, a sealing ring is provided between the air inlet pipe and the cylinder.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 This is a three-dimensional structural diagram of the gas circuit switch in an embodiment of this utility model;

[0024] Figure 2 This is a cross-sectional view of the pneumatic switch ball located in the first arc-shaped groove in an embodiment of the present invention.

[0025] Figure 3 This is a cross-sectional view of the pneumatic switch ball located in the second arc-shaped groove in an embodiment of the present invention.

[0026] Reference numerals: 100, cylinder; 101, air inlet pipe; 102, air outlet pipe; 103, valve core; 104, groove; 105, sealing groove; 106, sealing ring; 107, assembly groove; 108, abutment spring; 109, V-shaped component; 110, first arc groove; 111, second arc groove; 112, ball bearing; 113, first assembly plate; 114, second assembly plate; 115, air chamber; 116, abutment rod. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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.

[0029] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] Please see Figures 1-3 As shown in the figure, this application provides a pneumatic switch, which includes a cylinder 100, an inlet pipe 101, an outlet pipe 102, a valve core 103, and a control component.

[0033] The cylinder 100 is a cylindrical structure with openings at both ends. An air inlet pipe 101 is connected to one end opening of the cylinder 100 and is used to connect to an air supply device. An air outlet pipe 102 is connected to the side wall of the cylinder 100 and communicates with the inside of the cylinder 100. The air outlet pipe 102 is used to allow gas to flow out. A valve core 103 is slidably disposed inside the cylinder 100 and is used to move within the cylinder 100 to close or open the connection between the air outlet pipe 102 and the cylinder 100. A control component is connected to the end of the valve core 103 away from the air inlet pipe 101, and a switch is used to control the movement of the valve core 103 within the cylinder 100.

[0034] The valve core 103 is controlled to move within the cylinder 100 by the control component, thereby adjusting the opening or closing state of the air outlet pipe 102. The overall structure is simple and easy for operators to control.

[0035] The control component includes a V-shaped member 109, which is rotatably mounted. The V-shaped member 109 includes a protruding end with adjacent first arc-shaped grooves 110 and second arc-shaped grooves 111. The control component also includes a ball bearing 112, which abuts against the end of the valve core 103 away from the intake pipe 101. The ball bearing 112 also abuts against either the first arc-shaped groove 110 or the second arc-shaped groove 111. The air circuit switch also includes a first mounting plate 113, to which the V-shaped member 109 is rotatably connected. The distance between the center of the first arc-shaped groove 110 and the rotation center of the V-shaped member 109 is greater than the distance between the center of the second arc-shaped groove 111 and the rotation center of the V-shaped member 109.

[0036] By rotating the V-shaped component 109, the ball 112 is adjusted to be in the first arc groove 110 or the second arc groove 111. When the ball 112 is in the first arc groove 110, the ball 112 moves towards the inside of the cylinder 100. The ball 112 pushes the valve core 103 towards the inside of the cylinder 100, and the position where the air outlet pipe 102 communicates with the cylinder 100 is opened, thereby allowing the gas circuit switch to allow gas to pass through.

[0037] When the ball bearing 112 is located in the second arc groove 111, the ball bearing 112 moves away from the cylinder 100, causing the valve core 103 to move away from the air inlet pipe 101. The valve core 103 closes the position where the air outlet pipe 102 is connected to the cylinder 100, so that gas cannot pass through the air circuit switch.

[0038] The pneumatic switch also includes a second mounting plate 114, which is sleeved on the cylinder 100 on the side away from the air inlet pipe 101. The second mounting plate 114 is provided with abutment rods 116, which are spaced apart on both sides of the cylinder 100. The abutment rods 116 are used to abut against the control components. The abutment rods 116 abut against the V-shaped member 109 on both sides, limiting the rotation range of the V-shaped member 109, thereby reducing the probability of the ball bearing 112 falling off due to excessive rotation of the V-shaped member 109, and thus improving the stability of the overall structure.

[0039] A groove 104 is provided at the end of the valve core 103 away from the intake pipe 101. The open end of the groove 104 is located on the side opposite to the intake pipe 101, and the ball bearing 112 is also disposed in the groove 104. The groove 104 is provided to accommodate the ball bearing 112, thereby improving the stability of the ball bearing 112 assembly.

[0040] An assembly groove 107 is provided inside the cylinder 100, and an abutment spring 108 is provided inside the assembly groove 107. The abutment spring 108 abuts against the valve core 103 inside the assembly groove 107. With the abutment spring 108, when the ball 112 enters the second arc groove 111 from the first arc groove 110, the abutment spring 108 can push the valve core 103 to move away from the air inlet pipe 101, thereby closing the air outlet pipe 102.

[0041] The valve core 103 is provided with sealing grooves 105 at intervals, and sealing rings 106 are installed in the sealing grooves 105. The sealing rings 106 abut against the inner side wall of the cylinder 100. The sealing grooves 105 are provided at intervals on both sides of the air outlet pipe 102. The sealing rings 106 seal both sides of the air outlet pipe 102, so that the valve core 103 can close the air outlet pipe 102.

[0042] An air chamber 115 is provided on the side of the air inlet pipe 101 near the cylinder 100, and the inner diameter of the cylinder 100 is smaller than the inner diameter of the air chamber 115. The air chamber 115 allows one end of the valve core 103 to enter the air chamber 115 when the valve core 103 moves towards the air inlet pipe 101. This, in turn, causes the sealing ring 106 near the air inlet pipe 101 to enter the air chamber 115, thereby opening the air outlet pipe 102 and allowing gas to pass through.

[0043] A sealing ring 106 is provided between the air intake pipe 101 and the cylinder 100. The sealing ring 106 improves the sealing performance between the air intake pipe 101 and the cylinder 100.

[0044] In summary, the valve core 103 is moved within the cylinder 100 by the control component to adjust the opening or closing state of the air outlet pipe 102. The overall structure is simple and easy for operators to control. The embodiments of this utility model have been described in detail above with reference to the accompanying drawings. However, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Furthermore, the embodiments and features of this utility model can be combined with each other unless there is conflict.

Claims

1. An air path switch, characterized by, include: The cylindrical body (100) has a cylindrical structure with openings at both ends; An air inlet pipe (101) is connected to one end opening of the cylinder (100), and the air inlet pipe (101) is used to connect to an air supply device; An exhaust pipe (102) is connected to the side wall of the cylinder (100), and the exhaust pipe (102) communicates with the inner side of the cylinder (100). The exhaust pipe (102) is used to allow gas to flow out. The valve core (103) is slidably disposed inside the cylinder (100). The valve core (103) is used to move inside the cylinder (100) to close or open the connection between the air outlet pipe (102) and the cylinder (100). A control component is connected to the end of the valve core (103) away from the air inlet pipe (101), and the switch is used to control the movement of the valve core (103) within the cylinder (100); The control component includes a V-shaped member (109), which is rotatably disposed. The V-shaped member (109) includes a protruding end, and the protruding end is provided with an adjacent first arcuate groove (110) and a second arcuate groove (111). The control component also includes a ball bearing (112), which abuts against the valve core (103) at the end away from the air intake pipe (101), and the ball bearing (112) also abuts against the first arc groove (110) or the second arc groove (111).

2. The air path switch according to claim 1, characterized by, The gas circuit switch also includes a first assembly plate (113), and the V-shaped component (109) is rotatably connected to one side of the first assembly plate (113).

3. The air path switch according to claim 2, characterized by, The distance between the center of the first arc groove (110) and the rotation center of the V-shaped member (109) is greater than the distance between the center of the second arc groove (111) and the rotation center of the V-shaped member (109).

4. The air path switch according to claim 3, characterized by, The air circuit switch also includes a second assembly plate (114), which is sleeved on the side of the cylinder (100) away from the air inlet pipe (101). The second assembly plate (114) is provided with abutment rods (116), which are spaced apart on both sides of the cylinder (100) and are used to abut against the control component.

5. The air path switch according to claim 1, wherein The valve core (103) is provided with a groove (104) at the end away from the air intake pipe (101). The opening end of the groove (104) is located away from the air intake pipe (101), and the ball (112) is also located in the groove (104).

6. The air path switch according to claim 1, wherein The cylinder (100) is provided with an assembly groove (107), and an abutment spring (108) is provided in the assembly groove (107). The abutment spring (108) abuts against the valve core (103) in the assembly groove (107).

7. The air path switch according to claim 1, wherein The valve core (103) is provided with a sealing groove (105) at intervals. A sealing ring (106) is assembled in the sealing groove (105). The sealing ring (106) abuts against the inner side wall of the cylinder (100). The sealing groove (105) is provided at intervals on both sides of the air outlet pipe (102).

8. The air path switch according to claim 7, characterized by, An air chamber (115) is provided on the side of the air inlet pipe (101) near the cylinder (100), and the inner diameter of the cylinder (100) is smaller than the inner diameter of the air chamber (115).

9. The air path switch according to claim 1, wherein A sealing ring (106) is provided between the air inlet pipe (101) and the cylinder (100).

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