Constant current constant voltage energy-saving device and welding equipment

Abstract

The utility model discloses a kind of constant-current constant-voltage energy-saving devices, include: shell;Shell contains an air inlet port and air outlet port, air inlet port and air outlet port are communicated by the gas pipeline being set in shell between;Gas pipeline is close to the one end of air inlet port and set first adjusting buffer chamber;Gas pipeline is close to the one end of air outlet port and set second adjusting buffer chamber;First gas pressure adjusting structure, set in first adjusting buffer chamber, for the gas in gas pipeline is carried out primary pressure regulation;Second gas pressure adjusting structure, set in second adjusting buffer chamber, for the gas in gas pipeline is carried out secondary pressure regulation.The utility model further discloses a kind of welding cutting equipment.The utility model constant-current constant-voltage energy-saving device structure is compact, and low in cost.

Description

Technical Field

[0001] This utility model relates to the field of energy conservation and emission reduction technology, specifically to a constant current and constant voltage energy-saving device and welding and cutting equipment. Background Technology

[0002] A gas pressure reducing device is a specialized device that automatically reduces the working pressure of a pipeline, reducing high gas pressure to the level required by the end equipment.

[0003] In the existing technology, gas pressure reducing devices are generally installed at the gas source output end. Due to the long output pipeline, the output pressure is generally set high in order to ensure the gas needs of the terminal equipment. If ordinary valves without pressure control are used, gas is wasted by releasing gas at the first gun (manual pressure relief). In addition, such a high gas supply pressure is not required during the welding process, but a high pressure gas supply is provided from beginning to end, resulting in continuous gas waste.

[0004] Most existing gas pressure reducing devices use a single-stage pressure reducing structure, which can only perform single-stage pressure reducing. For welding work with high requirements for aesthetic welding effect and energy saving, secondary pressure reducing may be required. However, existing secondary gas pressure reducing devices are expensive and bulky. Utility Model Content

[0005] The purpose of this invention is to provide a constant current and constant pressure energy-saving device to overcome the above-mentioned technical problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a constant flow and constant pressure energy-saving device, characterized in that it comprises: a housing; the housing includes an air inlet port and an air outlet port, the air inlet port and the air outlet port being connected by an air supply pipe disposed within the housing; a first regulating buffer chamber is disposed at one end of the air supply pipe near the air inlet port; a second regulating buffer chamber is disposed at one end of the air supply pipe near the air outlet port; a first pressure regulating structure is disposed in the first regulating buffer chamber for primary pressure regulation of the gas in the air supply pipe; and a second pressure regulating structure is disposed in the second regulating buffer chamber for secondary pressure regulation of the gas in the air supply pipe.

[0007] In some possible implementations, the constant current and constant pressure energy-saving device further includes a first switching assembly disposed outside the housing and connected to the first air pressure regulating structure.

[0008] In this embodiment, the first switch assembly includes: a first valve seat; a first pressure adjusting screw disposed on the first valve seat and connected to the first air pressure regulating structure; a first flow regulating knob disposed at the end of the first valve seat opposite to the first pressure adjusting screw; rotating the first flow regulating knob drives the first pressure adjusting screw to extend and retract.

[0009] In this embodiment, the first pressure regulating structure includes: a first upper elastic element connected to the first pressure regulating screw; a first pressure regulating piston with one end connected to the first upper elastic element; and a first lower sealing assembly disposed within the housing, abutting against the end of the first pressure regulating piston opposite to the first switch assembly, thereby preventing gas entering the first regulating buffer chamber from flowing in the opposite direction to the first pressure regulating structure.

[0010] In this embodiment, the first pressure regulating structure further includes a first piston baffle, which is disposed between the first pressure regulating piston and the first lower sealing assembly.

[0011] In this embodiment, the first lower sealing assembly includes: a first sealing gasket abutting against the first pressure regulating piston; a first lower elastic member connected to the first sealing gasket; and a first elastic seat connected to the end of the first lower elastic member opposite to the first sealing gasket, wherein the first elastic seat is embedded in the housing.

[0012] In this embodiment, the first pressure regulating structure further includes a first piston sealing ring, which is disposed between the first valve seat and the first pressure regulating piston.

[0013] In some possible implementations, the constant current and constant pressure energy-saving device further includes a second switching assembly disposed outside the housing and connected to the second air pressure regulating structure.

[0014] In this embodiment, the second switch assembly includes: a second valve seat; a second pressure regulating screw disposed on the second valve seat and connected to the second air pressure regulating structure; a second flow regulating knob disposed at one end of the second valve seat opposite to the second pressure regulating screw; rotating the second flow regulating knob drives the second pressure regulating screw to extend and retract.

[0015] In this embodiment, the second pressure regulating structure includes: a second upper elastic member connected to the second pressure regulating screw; a second pressure regulating piston, one end of which is connected to the first upper elastic member; and a second lower sealing assembly disposed within the housing, abutting against the end of the second pressure regulating piston opposite to the second switch assembly, thereby preventing gas entering the second regulating buffer chamber from flowing in the opposite direction to the second pressure regulating structure.

[0016] In this embodiment, the second pressure regulating structure further includes a second piston baffle, which is disposed between the second pressure regulating piston and the second lower sealing assembly.

[0017] In this embodiment, the second lower sealing assembly includes: a second sealing gasket abutting against the second pressure regulating piston; a second lower elastic member connected to the second sealing gasket; and a second elastic seat connected to the end of the second lower elastic member opposite to the second sealing gasket, the second elastic seat being embedded in the housing.

[0018] In this embodiment, the second pressure regulating structure further includes a second piston sealing ring, which is disposed between the second valve seat and the second pressure regulating piston.

[0019] In some possible implementations, the constant current and constant pressure energy-saving device also includes an air inlet connector disposed outside the housing and connected to the air inlet port.

[0020] In some possible implementations, the constant current and constant pressure energy-saving device also includes an exhaust connector, which is disposed outside the housing and connected to the exhaust port.

[0021] In some possible implementations, the constant current and constant pressure energy-saving device further includes a first pressure gauge, which is disposed outside the housing and communicates with the first regulating buffer chamber for detecting the gas pressure in the first regulating buffer chamber.

[0022] In some possible implementations, the constant current and constant pressure energy-saving device further includes a second pressure gauge, which is disposed outside the housing and communicates with the second regulating buffer chamber for detecting the gas pressure in the second regulating buffer chamber.

[0023] This utility model also discloses a welding and cutting equipment, characterized in that it includes the constant current and constant voltage energy-saving device in any of the above embodiments.

[0024] Compared with the prior art, the constant current and constant pressure energy-saving device and welding and cutting equipment of this utility model have the following advantages: a secondary pressure reduction is set up, which can resist the impact of gas pressure on the end gas-using equipment and can switch the gas on and off; this utility model is small in size, easy to install, and works well when used with welding and cutting equipment. Attached Figure Description

[0025] Figure 1 This is an exploded view of the overall structure of a constant current and constant voltage energy-saving device according to an embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the assembly of a constant current and constant voltage energy-saving device according to an embodiment of this application. Detailed Implementation

[0027] Embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different examples, all of which do not depart from the scope of this utility model, and the descriptions and illustrations herein are for illustrative purposes only and not intended to limit this utility model.

[0028] It should be understood that although the terms "first," "second," etc., may be used herein to describe various features, these features should not be limited by these terms. The use of these terms is merely for distinction and should not be construed as indicating or implying relative importance. For example, without departing from the scope of the exemplary embodiments, a first feature may be referred to as a second feature, and similarly, a second feature may be referred to as a first feature.

[0029] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection, a direct connection, a welding connection, or a connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the accompanying drawings and specific circumstances.

[0030] This application provides a constant current and constant voltage energy-saving device. Figure 1 This is an exploded view of the overall structure of a constant current and constant voltage energy-saving device according to an embodiment of this application; Figure 2 This is a schematic diagram of the assembly of a constant current and constant voltage energy-saving device according to an embodiment of this application. Figure 1 and combined Figure 2 As shown, the constant current and constant pressure energy-saving device includes: a housing 100; the housing 100 includes an air inlet port 101 and an air outlet port 102, and the air inlet port 101 and the air outlet port 102 are connected by an air supply pipe disposed within the housing 100; a first regulating buffer chamber 103 is disposed at one end of the air supply pipe near the air inlet port 101; a second regulating buffer chamber 104 is disposed at one end of the air supply pipe near the air outlet port 102; a first air pressure regulating structure 200 is disposed in the first regulating buffer chamber 103 for primary pressure regulation of the gas in the air supply pipe; and a second air pressure regulating structure 300 is disposed in the second regulating buffer chamber 104 for secondary pressure regulation of the gas in the air supply pipe.

[0031] In some other embodiments of this application, the constant current and constant pressure energy-saving device further includes a first switch assembly 400, which is disposed outside the housing 100 and connected to the first air pressure regulating structure 200.

[0032] In the above embodiment, the first switch assembly 400 includes: a first valve seat 401; a first pressure adjusting screw 402 disposed on the first valve seat 401 and connected to the first air pressure regulating structure 200; a first flow rate adjusting knob 403 disposed at one end of the first valve seat 401 opposite to the first pressure adjusting screw 402; rotating the first flow rate adjusting knob 403 drives the first pressure adjusting screw 402 to extend and retract.

[0033] In the above embodiment, preferably, the first flow rate adjustment knob 403 is rotated clockwise to reduce the gas pressure; and the first flow rate adjustment knob 403 is rotated counterclockwise to increase the gas pressure.

[0034] Specifically, rotating the first flow rate adjustment knob 403 clockwise causes the first pressure adjusting screw 402 to move downwards, which in turn pushes the first air pressure regulating structure 200 downwards, reducing the gas volume in the first regulating buffer chamber 103 and thus decreasing the gas pressure. Similarly, rotating the first flow rate adjustment knob 403 counterclockwise causes the first pressure adjusting screw 402 to move upwards, which in turn moves the first air pressure regulating structure 200 upwards, increasing the gas volume in the first regulating buffer chamber 103 and thus increasing the gas pressure.

[0035] In some other embodiments of this application, the first flow rate adjustment knob 403 is locked at the factory and cannot be adjusted by the user.

[0036] In one specific embodiment of this application, the first pressure regulating structure 200 includes: a first upper elastic member 201 connected to a first pressure regulating screw 402; a first pressure regulating piston 202, one end of which is connected to the first upper elastic member 201; and a first lower sealing assembly 203 disposed inside the housing 100, abutting against the end of the first pressure regulating piston 202 opposite to the first switch assembly 400, thereby preventing gas entering the first regulating buffer chamber 103 from flowing in the opposite direction to the first pressure regulating structure 200.

[0037] In the above embodiments, specifically, as follows: Figure 2 As shown, when the gas enters the gas pipeline, it flows upward under the obstruction of the first lower sealing assembly 203 and enters the space where the first pressure regulating piston 202 is located.

[0038] In some other embodiments of this application, the first pressure regulating structure 200 further includes a first piston baffle 204, which is disposed between the first pressure regulating piston 202 and the first lower sealing assembly 203.

[0039] In one specific embodiment of this application, the first lower sealing assembly 203 includes: a first sealing gasket 2031, which abuts against the first pressure regulating piston 202; a first lower elastic member 2032, which is connected to the first sealing gasket 2031; and a first elastic seat 2033, which is connected to the end of the first lower elastic member 2032 that is opposite to the first sealing gasket 2031, and the first elastic seat 2033 is embedded in the housing 100.

[0040] In the above embodiments, preferably, the bottom plane of the first elastic seat 2033 is flush with the bottom plane of the housing 100.

[0041] In the above embodiment, specifically, the first pressure regulating piston 202 includes a guide rod 2021, which abuts against the first sealing gasket 2031.

[0042] In the above embodiments, preferably, the first upper elastic member 201 and the first lower elastic member 2032 are springs.

[0043] In some other embodiments of this application, the first air pressure regulating structure 200 further includes a first piston sealing ring 205, which is disposed between the first valve seat 401 and the first pressure regulating piston 202.

[0044] In some other embodiments of this application, the constant current and constant pressure energy-saving device further includes a second switching assembly 500, which is disposed outside the housing 100 and connected to the second air pressure regulating structure 300.

[0045] In one specific embodiment of this application, the second switch assembly 500 includes: a second valve seat 501; a second pressure adjusting screw 502 disposed on the second valve seat 501 and connected to the second air pressure regulating structure 300; and a second flow regulating knob 503 disposed at one end of the second valve seat 501 opposite to the second pressure adjusting screw 502; rotating the second flow regulating knob 503 drives the second pressure adjusting screw 502 to extend and retract.

[0046] In the above embodiment, preferably, the second flow rate adjustment knob 503 is rotated clockwise to decrease the gas pressure; and the second flow rate adjustment knob 503 is rotated counterclockwise to increase the gas pressure.

[0047] Specifically, rotating the second flow rate adjustment knob 503 clockwise causes the second pressure adjusting screw 502 to move downwards, which in turn pushes the second air pressure regulating structure 300 downwards, reducing the gas volume in the second regulating buffer chamber 104 and thus decreasing the gas pressure. Similarly, rotating the second flow rate adjustment knob 503 counterclockwise causes the second pressure adjusting screw 502 to move upwards, which in turn moves the second air pressure regulating structure 300 upwards, increasing the gas volume in the second regulating buffer chamber 104 and thus increasing the gas pressure.

[0048] In one specific embodiment of this application, the second pressure regulating structure 300 includes: a second upper elastic member 301 connected to a second pressure regulating screw 502; a second pressure regulating piston 302, one end of which is connected to the first upper elastic member 301; and a second lower sealing assembly 303 disposed inside the housing 100, abutting against the end of the second pressure regulating piston 302 opposite to the second switch assembly 500, thereby preventing gas entering the second regulating buffer chamber 104 from flowing in the opposite direction to the second pressure regulating structure 300.

[0049] In the above embodiments, specifically, as follows: Figure 2 As shown, when gas enters the second regulating buffer chamber 104 from the first regulating buffer chamber 103, it flows upward under the obstruction of the second lower sealing assembly 303 and enters the space where the second pressure regulating piston 302 is located.

[0050] In some other embodiments of this application, the second pressure regulating structure 300 further includes a second piston baffle 304, which is disposed between the second pressure regulating piston 302 and the second lower sealing assembly 303.

[0051] In one specific embodiment of this application, the second lower sealing assembly 303 includes: a second sealing gasket 3031, which abuts against the second pressure regulating piston 302; a second lower elastic member 3032, which is connected to the second sealing gasket 3031; and a second elastic seat 3033, which is connected to the end of the second lower elastic member 3032 that is opposite to the second sealing gasket 3031, and the second elastic seat 3033 is embedded in the housing 100.

[0052] In the above embodiments, preferably, the bottom plane of the second elastic seat 3033 is flush with the bottom plane of the housing 100.

[0053] In the above embodiment, specifically, the second pressure regulating piston 302 includes a guide rod 3021, which abuts against the second sealing gasket 3031.

[0054] In the above embodiments, preferably, the second upper elastic member 301 and the second lower elastic member 3032 are springs.

[0055] In some other embodiments of this application, the second pressure regulating structure 300 further includes a second piston sealing ring 305, which is disposed between the second valve seat 501 and the second pressure regulating piston 302.

[0056] In some possible implementations, for convenient connection to the air intake pipe (not shown in the figure), the constant current and constant pressure energy-saving device also includes an air intake connector 600, which is disposed outside the housing 100, with one end connected to the air intake port 101 and the other end connected to the air intake pipe.

[0057] In some possible implementations, for easy connection to end-use gas equipment (not shown in the figure), the constant current and constant pressure energy-saving device also includes an outlet connector 700. The outlet connector 700 is disposed outside the housing 100, with one end connected to the outlet port 102 and the other end connected to the end-use gas equipment.

[0058] In some possible implementations, in order to facilitate the viewing of the gas pressure in the first regulating buffer chamber, the constant flow and constant pressure energy-saving device also includes a first pressure gauge (not shown in the figure). The first pressure gauge is located outside the housing 100 and is connected to the first regulating buffer chamber 103 for detecting the gas pressure in the first regulating buffer chamber 103.

[0059] In the above embodiment, the first pressure gauge is an optional configuration. When not in use, the channel can be blocked with the first plug 800.

[0060] In some possible implementations, in order to facilitate the viewing of the gas pressure in the second regulating buffer chamber, the constant flow and constant pressure energy-saving device also includes a second pressure gauge. The second pressure gauge is located outside the housing 100 and is connected to the second regulating buffer chamber 104 for detecting the gas pressure in the second regulating buffer chamber 104.

[0061] In the above embodiments, the second pressure gauge is an optional configuration. When not in use, the channel can be blocked with the second plug 900.

[0062] This application provides a welding and cutting equipment, on which the constant current and constant pressure energy-saving device described in the above embodiment is configured on the gas transmission pipeline.

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. 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 a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0064] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A constant current and constant voltage energy-saving device, characterized in that, Include: case; The housing includes an air inlet port and an air outlet port, and the air inlet port and the air outlet port are connected by an air supply pipe disposed inside the housing. A first regulating buffer chamber is provided at one end of the gas transmission pipeline near the gas inlet port; A second regulating buffer chamber is provided at one end of the gas transmission pipeline near the gas outlet port; The first pressure regulating structure is installed in the first regulating buffer chamber and is used to regulate the pressure of the gas in the gas pipeline. The second pressure regulating structure is installed in the second regulating buffer chamber and is used to perform secondary pressure regulation on the gas in the gas transmission pipeline.

2. The constant current and constant voltage energy-saving device as described in claim 1, characterized in that, It also includes a first switch assembly, which is disposed outside the housing and connected to the first air pressure regulating structure. The first switch assembly includes: First valve seat; The first pressure adjusting screw is disposed on the first valve seat and connected to the first air pressure regulating structure; The first flow rate adjustment knob is located at the end of the first valve seat opposite to the first pressure adjusting screw; Rotate the first flow rate adjustment knob to drive the first pressure regulating screw to extend and retract.

3. The constant current and constant voltage energy-saving device as described in claim 2, characterized in that, The first air pressure regulating structure includes: The first upper elastic element is connected to the first pressure adjusting screw; The first pressure regulating piston is connected at one end to the first upper elastic element; The first lower sealing assembly is disposed inside the housing and abuts against the end of the first pressure regulating piston that is opposite to the first switching assembly, thereby preventing gas entering the first regulating buffer chamber from flowing in the opposite direction to the first pressure regulating structure.

4. The constant current and constant voltage energy-saving device as described in claim 3, characterized in that, The first pressure regulating structure further includes a first piston baffle, which is disposed between the first pressure regulating piston and the first lower sealing assembly.

5. The constant current and constant voltage energy-saving device as described in claim 3, characterized in that, The first lower sealing assembly includes: The first sealing gasket abuts against the first pressure regulating piston; The first lower elastic element is connected to the first sealing gasket; The first elastic seat is connected to the end of the first lower elastic member opposite to the first sealing gasket, and the first elastic seat is embedded in the housing.

6. The constant current and constant voltage energy-saving device as described in claim 3, characterized in that, The first pressure regulating structure further includes a first piston sealing ring, which is disposed between the first valve seat and the first pressure regulating piston.

7. The constant current and constant voltage energy-saving device as described in claim 5, characterized in that, It also includes a second switch assembly, which is disposed outside the housing and connected to the second air pressure regulating structure. The second switch assembly includes: Second valve seat; The second pressure adjusting screw is mounted on the second valve seat and connected to the second air pressure regulating structure; The second flow rate adjustment knob is located at the end of the second valve seat opposite to the second pressure adjusting screw; Rotate the second flow rate adjustment knob to drive the second pressure regulating screw to extend and retract.

8. The constant current and constant voltage energy-saving device as described in claim 7, characterized in that, The second air pressure regulating structure includes: The second upper elastic element is connected to the second pressure adjusting screw; The second pressure regulating piston is connected at one end to the first upper elastic element; The second lower sealing assembly is disposed inside the housing and abuts against the end of the second pressure regulating piston opposite to the second switching assembly, preventing the gas entering the second regulating buffer chamber from flowing in the opposite direction to the second pressure regulating structure.

9. The constant current and constant voltage energy-saving device as described in claim 8, characterized in that, The second pressure regulating structure further includes a second piston baffle, which is disposed between the second pressure regulating piston and the second lower sealing assembly.

10. The constant current and constant voltage energy-saving device as described in claim 8, characterized in that, The second lower sealing assembly includes: The second sealing gasket abuts against the second pressure regulating piston; The second lower elastic element is connected to the second sealing gasket; The second elastic seat is connected to the end of the second lower elastic member opposite to the second sealing gasket, and the second elastic seat is embedded in the housing.

11. The constant current and constant voltage energy-saving device as described in claim 8, characterized in that, The second pressure regulating structure also includes a second piston sealing ring, which is disposed between the second valve seat and the second pressure regulating piston.

12. A welding and cutting device, characterized in that, It includes the constant current and constant voltage energy-saving device as described in any one of claims 1-11.

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